CN103486641A - System and method for controlling water supplementing and softening - Google Patents
- ️Wed Jan 01 2014
CN103486641A - System and method for controlling water supplementing and softening - Google Patents
System and method for controlling water supplementing and softening Download PDFInfo
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Publication number
- CN103486641A CN103486641A CN201310470207.0A CN201310470207A CN103486641A CN 103486641 A CN103486641 A CN 103486641A CN 201310470207 A CN201310470207 A CN 201310470207A CN 103486641 A CN103486641 A CN 103486641A Authority
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 169
- 238000000034 method Methods 0.000 title claims abstract description 32
- 230000001502 supplementing effect Effects 0.000 title abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 92
- 150000003839 salts Chemical class 0.000 claims abstract description 21
- 230000003020 moisturizing effect Effects 0.000 claims description 64
- 230000000052 comparative effect Effects 0.000 claims description 10
- 159000000000 sodium salts Chemical class 0.000 description 10
- 239000008233 hard water Substances 0.000 description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- 239000008234 soft water Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 230000001351 cycling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 235000017550 sodium carbonate Nutrition 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 235000010216 calcium carbonate Nutrition 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 235000014380 magnesium carbonate Nutrition 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
The invention discloses a system and method for controlling water supplementing and softening. The system for controlling the water supplementing and softening comprises a boiler system, a water supplementing system used for supplementing water to the boiler system, at least one heat exchanger station which receives the hot water of the boiler system and supplies heat for users and a control center in communication with the heat exchange stations. The control center regulates the heating load of the boiler system and determines the circulation amount of the circulating water of the boiler system according to the sum of the heat loads of all the heat exchange stations, determines the water supplementing amount of the circulating water according to the circulation amount of the circulating water, and determines the salt using amount for supplemented water softening in the water supplementing system by considering the hardness of water. The system and method for controlling the water supplementing and softening can regulate the water supplementing amount and the salt using amount for the water softening of the heat exchange stations according temperature in time. Resources are saved, and meanwhile heat supply cost is saved.
Description
Technical field
The present invention relates to the heat supply process field, relate in particular to a kind of softening control system of moisturizing and method of heating plant.
Background technology
Existing central heating industry, carry out hot water circuit to heating plant heat energy by heat exchange station and heating between the user, to reach the purpose of transfer of heat.In general, heating plant provides recirculated water after completing the one or many circulation to heat exchange station, all consume a certain proportion of recirculated water, need in other words the boiler of regular heat source factory to supplement the water of some, and recirculated water need to carry out water softening for boiler, in general, industrial water softening can adopt the mode of adding sodium salt.
But, for existing heating technology, in general the addition of rate of water make-up, moisturizing time and sodium salt is all often that those of ordinary skill rule of thumb carries out.But, only according to technical staff's experience, carry out moisturizing and water softening, not only not accurate enough, and easily cause waste.Simultaneously, even rule of thumb the heating load of each heating plant is adjusted, the also unified standard of neither one often, simultaneously artificial adjustment also may cause to be adjusted inaccurately, too relies on personal experience's problem.
In addition, when outdoor temperature sharply changes (raise or reduce), existing boiler operatiopn adjustment lags behind, and cannot immediately adjust, and causes the heat supply accident that (bursting by freezing heating equipment) frequently occurs, and causes serious energy waste (overheated opening a window).The problems such as simultaneously, rate of water make-up can not be adjusted in time according to the variation of outdoor temperature, causes the internal circulating load error of recirculated water to increase, and heating load is inaccurate.
Summary of the invention
The object of the present invention is to provide a kind of make-up water supply control system and method, for solving existing make-up water supply control system heat supply adjustment by artificial experience, cause the adjustment data inaccurate, cause the wasting of resources, the problems such as heat cost height.
Control system is softened in a kind of moisturizing of the present invention, comprises steam generator system; Water charging system, for to the steam generator system moisturizing; At least one heat exchange station, this heat exchange station receives the hot water of this steam generator system, and heats to the user; Control centre, communicate by letter with this at least one heat exchange station; Wherein, this control centre according to the thermic load of this heat exchange station respectively and, adjust the heating load of this steam generator system, determine the internal circulating load of the recirculated water of this steam generator system, and determine the rate of water make-up of recirculated water according to the internal circulating load of recirculated water, then in conjunction with hardness of water determine moisturizing in this water charging system softening use the salt amount.
Control system is softened in a kind of moisturizing of the present invention, wherein, also comprises: temperature acquisition system, for gathering user's indoor temperature; This control centre obtains the user's that this temperature acquisition system gathers indoor temperature, and this user's indoor temperature and a normal temperature are compared, according to comparative result and area of heat-supply service corresponding to this heat exchange station respectively, calculate the respectively thermic load of this heat exchange station, and according to the thermic load of this heat exchange station respectively and, determine the heating load of this steam generator system, adjust softening this of the internal circulating load of this recirculated water and moisturizing and use the salt amount.
Control system is softened in a kind of moisturizing of the present invention, wherein, also comprise: this control centre obtains the temperature on average of a time period, this control centre compares this temperature on average and a normal temperature, according to comparative result and area of heat-supply service corresponding to this heat exchange station, calculate the respectively thermic load of this heat exchange station, and according to the thermic load of this heat exchange station respectively and, determine the heating load of this steam generator system, with the internal circulating load of adjusting this recirculated water and softening this of moisturizing, use the salt amount.
Control system is softened in a kind of moisturizing of the present invention, and wherein, the computing formula of this thermic load is: Q=Qmax (tn-t ' w)/(tn-tw); Wherein, the outdoor temperature that t ' w is the user, the thermic load when outdoor temperature that Q is the user is t ' w, Qmax is the heat supply network maximum heating load, and tw is the outdoor heating accounting temperature of user, and tn is the indoor design heating temperature.
Control system is softened in a kind of moisturizing of the present invention, and wherein, this normal temperature is 18 ℃.
Control system is softened in a kind of moisturizing of the present invention, wherein, this control centre is according to the meteorological temperature on the same day, calculate the respectively thermic load of this heat exchange station, and according to the thermic load of this heat exchange station respectively and, determine the heating load of this steam generator system, with the internal circulating load of adjusting this recirculated water and softening this of moisturizing, use the salt amount.
Control system is softened in a kind of moisturizing of the present invention, wherein, this control centre will be divided into a plurality of time intervals in one day, difference according to each time interval outdoor temperature, make this heat exchange station provide corresponding thermic load at each time interval according to corresponding outdoor temperature, this control centre determines the internal circulating load of this steam generator system at the recirculated water of each time interval according to this thermic load, and determine this rate of water make-up of each time interval and in moisturizing softening this use the salt amount.
The present invention also provides a kind of moisturizing to soften control method, wherein, comprising: according to the thermic load of this heat exchange station respectively and, adjust the heating load of this steam generator system; According to the heating load of this steam generator system, determine the internal circulating load of the recirculated water of steam generator system; Determine the rate of water make-up of this steam generator system according to the internal circulating load of the recirculated water of this steam generator system; And according to this rate of water make-up and hardness of water be identified for moisturizing softening use the salt amount.
One embodiment of the softening control method of a kind of moisturizing of the present invention, wherein, the heating load of adjusting this steam generator system comprises: the indoor temperature of obtaining each user, and this user's indoor temperature and a normal temperature are compared, according to comparative result and area of heat-supply service corresponding to each heat exchange station, calculate the respectively thermic load of this heat exchange station, and according to the thermic load of this heat exchange station respectively and, to determine the heating load of this steam generator system.
One embodiment of the softening control method of a kind of moisturizing of the present invention, wherein, the heating load of adjusting this steam generator system comprises: the temperature on average that obtains a time period, this temperature on average and a normal temperature are compared, according to comparative result and area of heat-supply service corresponding to this heat exchange station, calculate the respectively thermic load of this heat exchange station, and according to the thermic load of this heat exchange station respectively and, determine the heating load of this steam generator system.
One embodiment of the softening control method of a kind of moisturizing of the present invention, wherein, the computing formula of this thermic load is: Q=Qmax (tn-t ' w)/(tn-tw); The outdoor temperature that t ' w is the user, the thermic load when outdoor temperature that Q is the user is t ' w, Qmax is the heat supply network maximum heating load, and tw is the outdoor heating accounting temperature of user, and tn is the indoor design heating temperature.
One embodiment of the softening control method of a kind of moisturizing of the present invention, wherein, this normal temperature is 18 ℃.
One embodiment of the softening control method of a kind of moisturizing of the present invention, wherein, the heating load of adjusting this steam generator system comprises: according to the meteorological temperature on the same day, calculate the respectively thermic load of this heat exchange station, and according to the thermic load of this heat exchange station respectively and, determine the heating load of this steam generator system.
One embodiment of the softening control method of a kind of moisturizing of the present invention, wherein, the heating load of adjusting this steam generator system comprises: will within one day, be divided into a plurality of time intervals, difference according to each time interval outdoor temperature, make this heat exchange station provide corresponding thermic load at each time interval according to corresponding outdoor temperature, calculate the respectively thermic load of this heat exchange station, and according to the thermic load of this heat exchange station respectively and, to determine the heating load of this steam generator system.
In sum, can adjust according to the variation of temperature the internal circulating load of the recirculated water of heating plant by control centre, simultaneously, control centre determines the internal circulating load of the recirculated water of each whole heating plant in real time, determine water consumption according to the internal circulating load of recirculated water, and determine the rate of water make-up of this whole heating plant according to this water consumption, and according to this rate of water make-up and hardness of water be identified for moisturizing softening use the salt amount.So, also just can reach rate of water make-up and the demineralized water salt amount of adjusting in time heating plant according to temperature.Save resource, also saved heat cost simultaneously.
The accompanying drawing explanation
Figure 1 shows that the module map of the softening control system of moisturizing of the present invention.
The flow chart that Fig. 2 is the softening control method of moisturizing of the present invention;
The flow chart of another embodiment that Fig. 3 is the softening control method of moisturizing of the present invention;
The flow chart of an embodiment again that Fig. 4 is the softening control method of moisturizing of the present invention;
Figure 5 shows that the heat distribution schematic diagram of a day.
The specific embodiment
Figure 1 shows that the module map of the softening control system of moisturizing of the present invention, as shown in Figure 1, heating system of the present invention comprises:
control centre1,
heat exchange station2,
heat exchange station3, heat exchange station 4, steam generator system 8,
water charging system9, user supply
hot cell7 for
hot cell5, user for hot cell 6 and user.
With reference to figure 1,
control centre1 communicates by letter with
heat exchange station2,
heat exchange station3 and heat exchange station 4 respectively.
Heat exchange station2 is to the user for
hot cell5 heat supplies, and
heat exchange station3 is to the user for hot cell 6 heat supplies, and heat exchange station 4 supplies
hot cell7 heat supplies to the user.
Water charging system9 is for carrying out moisturizing to steam generator system 8.And described user can represent Yi Dong building, a Huo Moujian house, unit for hot cell.The moisturizing that above-mentioned water charging system provides to heat exchange station all should be soft water, therefore water charging system generally need to be softened water, and the soft water after softening offers heat exchange station as moisturizing.
With reference to figure 1, from steam generator system 8 to heat exchange station 2, heat exchange station 3 and heat exchange station 4 etc. transmit heat by recirculated water.The water temperature of steam generator system 8 can be known, and be all generally the peak load operation with steam generator system 8, the amount of recirculated water is relevant to the gross heat input of each heat exchange station transmission with steam generator system 8, and gross heat input is relevant to the summation of the thermic load of each heat exchange station, therefore, also just can be according to the internal circulating load of the recirculated water of the calculation of Heat Load steam generator system of each heat exchange station.Because recirculated water there will be certain consumption in the process of circulation, the ratio of consumption is generally all fixed, and therefore, needs regular replenishment recirculated water.Simultaneously, the ratio according to the internal circulating load of recirculated water and average consumption water, can calculate needed rate of water make-up.Because the recirculated water of general steam generator system is all demineralized waters, therefore rate of water make-up is also the softening water yield of supplementing, and can, in conjunction with the hardness of rate of water make-up, hard water and for the purity of the sodium salt of softening of water, calculate required sodium salt total amount.
The criteria for classification of industrial soft water and hard water is generally: soft water: 0-60ppm=0.6 ㎜ o1/L; Hard water slightly: 60-120ppm=0.6-1.2 ㎜ o1/L; Hard water: 120-180ppm=1.2-1.8 ㎜ o1/L; Utmost point hard water: more than 181ppm=1.81 ㎜ o1/L.
What is called is carried out the softening of hard water, the industrial removal that is generally magnesium ion and calcium ion, and the chemical equation of demineralized water is:
The removal of calcium: CaCO3+2Na-R=Ca-R+Na2CO3; Ca (HCO3) 2+2Na-R=Ca-R+2NaHCO3
The removal of magnesium: MgCO3+2Na-R=Mg-R+Na2CO3; Mg (HCO3) 2+2Na-R=Mg-R+2NaHCO3
Required supplementary demineralized water, i.e. chemical water rate of water make-up, its generally equal boiler operatiopn water loss and pipe network operation fluid loss and.And industry urban heating pipe network General Requirements rate of water make-up must not be less than recirculated water internal circulating
load2%.And according to industrial boiler replenishing water amount, generally be not more than recirculated water internal circulating
load1%, simultaneously active loss amount and the blowdown flow rate in conjunction with hot water circuit in heating network calculates, required supplementary demineralized water can be by 1.5% of the cycling hot water yield.
With reference to figure 1, in the present embodiment, the user also has temperature acquisition system for hot cell (comprising building, unit or room), for example the user has temperature acquisition system 14 for
hot cell5, temperature acquisition system 14 can gather user's indoor and outdoor temperature,
control centre1 can be according to the corresponding heating load of adjusting steam generator system 8 of the indoor and outdoor temperature that gathers the user, and then the internal circulating load of the recirculated water of adjustment steam generator system 8, and the use amount of the rate of water make-up of water charging system and sodium salt etc.
For example, heat exchange station first according to a user indoor normal temperature carry out heat supply, control centre 1 is the indoor temperature for hot cell 5 according to the user who gathers, by its therewith normal temperature compare, when supplying the indoor temperature in hot cell 5, the user is greater than normal temperature, illustrate that heating load is too much, can suitably reduce the heating load of user for hot cell 5, the internal circulating load of recirculated water that can be by reducing steam generator system 8, and then the thermic load of adjusting heat exchange station realizes reducing the heating load of user for hot cell 5, with the thermic load that reduces heat exchange station 2, realize, in addition, when supplying the indoor temperature in hot cell 5, the user is less than normal temperature, illustrate that heating load is very few, can suitably increase the heating load of user for hot cell 5, the internal circulating load of recirculated water that can be by increasing steam generator system 8 realizes that the thermic load that reduces heat exchange station 2 realizes.And increase and the internal circulating load that reduces the recirculated water of steam generator system 8 all needs correspondingly to increase or reduce rate of water make-up that water charging system 9 provides and for the sodium salt amount of demineralized water.Wherein, above-mentioned normal temperature can be 18 ℃.
For another embodiment, heat exchange station first carries out heat supply according to another outdoor normal temperature of user,
control centre1 according to the user who gathers for the outdoor temperature in
hot cell5 therewith another normal temperature compare, when supplying the outdoor temperature in
hot cell5, the user is greater than this another normal temperature, can suitably reduce the heating load of user for
hot cell5, can realize by the internal circulating load that reduces the required recirculated water of steam generator system 8 reducing the heating load of user for
hot cell5, with the thermic load that reduces
heat exchange station2, realize, in addition, when supplying the outdoor temperature in
hot cell5, the user is less than normal temperature, explanation possibility heating load is very few, can suitably increase the heating load of user for
hot cell5, the internal circulating load of recirculated water that can be by increasing steam generator system 8 realizes that the thermic load that reduces
heat exchange station2 realizes.And increase and the internal circulating load that reduces the recirculated water of steam generator system 8 all needs correspondingly to increase or reduce rate of water make-up that
water charging system9 provides and for the sodium salt amount of demineralized water.Wherein, above-mentioned normal temperature can be-5 ℃.
In addition, when temperature acquisition system collects user's 1 ℃ of the every variation of outdoor temperature,
control centre1 adjusts the corresponding internal circulating load of adjusting the recirculated water of
steam generator system9, and then adjusts the rate of water make-up of
water charging system9 and for the sodium salt amount of demineralized water.
As shown in Figure 1, the control of carrying out with 1 pair of each heat exchange station of instantiation explanation control centre, can comprise: obtain a meteorological mean temperature, mean temperature can for a certain date day maximum temperature and the Daily minimum temperature sum divided by two, the day maximum temperature of for example estimating is 0 ℃, and Daily minimum temperature is-10 ℃, mean temperature is-5 ℃.Design Heating Load computing formula: Qmax=q * A, wherein, Q is the central heat supplying design heating load, q is heating Thermal Synthetic index w/m 2, A is Areas benefiting from central heating m 2, for example, q is 55W/m 2, A is 1000000m 2.Qmax=1000000m 2* 55W/m 2=5.5 * 107w/h, the unit of above-mentioned heat supply total load is lucky burnt, and with symbol, GJ means, and namely 1,000,000,000 joules, 5.5 * 107w/h is scaled lucky burnt (GJ), is 1.98 * 10 2gJ.Can obtain the thermic load under area of heat-supply service.At area of heat-supply service, be 1000000m 2, and in the mean temperature situation that is-5 ℃, thermic load hourly is: Q=Qmax (tn-t ' w)/(tn-tw)=1.98 * 10 2gJ * [18-(-5)]/[18-(-20)]=121GJ/h, wherein tn is the indoor design heating temperature, the temperature that expectation reaches, t ' w is the Heating Period outdoor temperature, and mean temperature is-5 ℃, and tw is outdoor heating accounting temperature, can be set as-20 ℃.
In addition, when the actual indoor temperature that records use is 16 ℃, by tn=16 substitution formula Q=Qmax (tn-t ' w)/(tn-tw) (GJ/h)=1.98 * 102GJ * [16-(-5)]/[16-(-20)]=115.49GJ/h.The 119.82GJ/h when 115.49GJ/h during by 16 ℃ deducts-reach 18 ℃ obtains as-4.33GJ/h, and heating plant need to increase the thermic load of 4.33GJ/h ,-1.99w/m 2, need to adjust thermic load by 55-(-1.99)=56.99w/m 2carry out.
Continuation take thermic load hourly as Q=121GJ/h be example, 121GJ/h * 24h=2904GJ, suppose that supply backwater temperature difference is 40, it is 4.2 * 103 joules every kilogram ℃ that specific heat of water holds, the internal circulating load m=2904 of known recirculated water * 10 9/ (4.2 * 10 3* 10 3* 40), i.e. m=1.7285714 * 104=17.285714t.And can be by 1.5% of the cycling hot water yield according to the chemical water rate of water make-up, day rate of water make-up: 17285.714t * 0.015=259t.Consider the efficiency of general circulating pump: 650 ÷ 93%=600t/h, i.e. pump operating cycle time: 600t/ hour=28.81h of 17285.71t ÷, 600 m/hs=14.40h of 2 ÷ of 17285.71t ÷, every pump operating cycle is 14.40 hours.Small pump running time day of water charging system: 259t ÷ 50=5.18h.Day small pump power consumption: 5.18h * 22kwh=113.96kwh.
The flow chart that Fig. 2 is the softening control method of moisturizing of the present invention, with reference to figure 2, the flow process of temperature-controlled process comprises:
Step S1, according to the thermic load of each heat exchange station and, adjust the heating load of this steam generator system;
Step S2, according to the heating load of steam generator system, determine the internal circulating load of the recirculated water of steam generator system;
Obtain the thermic load data of each heat exchange station on the same day, and then obtain the steam generator system gross heat input on the same day according to meteorological temperature data, indoor area of heat-supply service data and the average design thermic load data of user.
Step S3, determine the rate of water make-up of this steam generator system according to the internal circulating load of the recirculated water of this steam generator system;
Because the ratio of the fluid loss of recirculated water is generally certain, therefore, just can be multiplied by the ratio of certain dehydration according to the internal circulating load of recirculated water, obtain the rate of water make-up that steam generator system needs.
Step S4 and according to this rate of water make-up and hardness of water be identified for moisturizing softening use the salt amount;
The rate of water make-up of water charging system, the formula of hardness of water, water softening, can obtain the data of the use amount of sodium salt jointly.
The flow chart of another embodiment that Fig. 3 is the softening control method of moisturizing of the present invention, with reference to figure 3, the flow process of temperature-controlled process comprises:
Step S1, according to the thermic load of each heat exchange station and, adjust the heating load of this steam generator system;
Step S2, according to the heating load of steam generator system, determine the internal circulating load of the recirculated water of steam generator system;
Step S3, determine the rate of water make-up of this steam generator system according to the internal circulating load of the recirculated water of this steam generator system;
Step S4 and according to this rate of water make-up and hardness of water be identified for moisturizing softening use the salt amount;
Step S5, obtain each user's indoor temperature, and the mean value of this user's indoor temperature and a normal temperature are compared, according to comparative result and area of heat-supply service corresponding to each heat exchange station, determine the thermic load of each heat exchange station;
Wherein, if the absolute value of the difference of the mean value of user's indoor temperature and normal temperature is more than or equal to certain temperature range, be for example 1 ℃, perform step S1;
Step S6, water charging system are with carrying out moisturizing to boiler.
The flow chart of an embodiment again that Fig. 4 is the softening control method of moisturizing of the present invention, with reference to figure 4,
Step S1, according to the thermic load of each heat exchange station and, adjust the heating load of this steam generator system;
Step S2, according to the heating load of steam generator system, determine the internal circulating load of the recirculated water of steam generator system;
Step S3, determine the rate of water make-up of this steam generator system according to the internal circulating load of the recirculated water of this steam generator system;
Step S4 and according to this rate of water make-up and hardness of water be identified for moisturizing softening use the salt amount;
Step S7, obtain each user's outdoor temperature, and this user's outdoor temperature and another normal temperature are compared, according to comparative result and area of heat-supply service corresponding to each heat exchange station, determine the thermic load of each heat exchange station;
Wherein, if the absolute value of the difference of user's outdoor temperature and this another normal temperature is more than or equal to certain temperature range, be for example 1 ℃, perform step S1;
Step S8, water charging system are with carrying out moisturizing to boiler.
Figure 5 shows that the heat distribution schematic diagram of a day, as shown in Figure 2, abscissa represents that the time of one day was since 11 o'clock to 9 o'clock, 24 hourly averages in one day are divided into to 12 time intervals, every two hours set a thermic load quantity, and take GJ as unit, as the highest as the outside air temperature of 11 o'clock to 15 o'clock in a day, be that required thermic load is low, so can be corresponding at this moment between the interval heating load that reduces heat exchange station, and 3 o'clock to the 5 o'clock late into the night is generally comparatively cold, be that required thermic load is high, so corresponding at this moment between the interval heating load that increases heat exchange station, in Fig. 2, the heat exchange station thermic load at 11 o'clock to 13 o'clock noon is 135GJ, and the thermic load at 3 o'clock to 5 o'clock night is 402GJ.And the adjustment of thermic load can be by adjusting steam generator system the internal circulating load of recirculated water reach, increase heating load, according to the adjustment of the internal circulating load of recirculated water, at each time interval corresponding consumption of adjusting the corresponding rate of water make-up of water charging system and sodium salt.
Wherein, in one day, the heat supply total amount of 24 hours is to be multiplied by and to calculate in 24 hours by aforesaid thermic load hourly, and distribute to 12 time intervals, according to 12 heating loads that time interval is required, calculate the actual heating load of heat exchange station in each time interval.
Certainly the amount of the thermic load of each time interval in Fig. 5 is according to the difference of the heat altogether of a day and time interval heating load and difference.In addition, the present embodiment is to be divided into 12 time intervals by one day, in fact also can be divided flexibly, then this does not do and repeat.
In sum, can adjust according to the variation of temperature the internal circulating load of the recirculated water of heating plant by control centre, simultaneously, control centre determines the internal circulating load of the recirculated water of each whole heating plant in real time, determine water consumption according to the internal circulating load of recirculated water, and determine the rate of water make-up of this whole heating plant according to this water consumption, and according to this rate of water make-up and hardness of water be identified for moisturizing softening use the salt amount.So, also just can reach rate of water make-up and the demineralized water salt amount of adjusting in time heating plant according to temperature.Save resource, also saved heat cost simultaneously.
Although with reference to several exemplary embodiments, described the present invention, should be appreciated that term used is explanation and exemplary and nonrestrictive term.Because can specifically implementing in a variety of forms, the present invention do not break away from spirit of the present invention or essence, so be to be understood that, above-described embodiment is not limited to any aforesaid details, and explain widely in the spirit and scope that should limit in claims, therefore fall into whole variations in claim or its equivalent scope and remodeling and all should be claims and contain.
Claims (14)
1. the softening control system of moisturizing, is characterized in that, comprise,
Steam generator system;
Water charging system, for to the steam generator system moisturizing;
At least one heat exchange station, this heat exchange station receives the hot water of this steam generator system, and heats to the user;
Control centre, communicate by letter with this at least one heat exchange station;
Wherein, this control centre according to the thermic load of this heat exchange station respectively and, adjust the heating load of this steam generator system, determine the internal circulating load of the recirculated water of this steam generator system, and determine the rate of water make-up of recirculated water according to the internal circulating load of recirculated water, then in conjunction with hardness of water determine moisturizing in this water charging system softening use the salt amount.
2. the softening control system of moisturizing as claimed in claim 1, is characterized in that, also comprises:
Temperature acquisition system, for gathering user's indoor temperature;
Wherein, this control centre obtains the user's that this temperature acquisition system gathers indoor temperature, and this user's indoor temperature and a normal temperature are compared, according to comparative result and area of heat-supply service corresponding to this heat exchange station respectively, calculate the respectively thermic load of this heat exchange station, and according to the thermic load of this heat exchange station respectively and, determine the heating load of this steam generator system, adjust softening this of the internal circulating load of this recirculated water and moisturizing and use the salt amount.
3. control system is softened in moisturizing as claimed in claim 1, it is characterized in that, also comprise: this control centre obtains the temperature on average of a time period, this control centre compares this temperature on average and a normal temperature, according to comparative result and area of heat-supply service corresponding to this heat exchange station, calculate the respectively thermic load of this heat exchange station, and according to the thermic load of this heat exchange station respectively and, determine the heating load of this steam generator system, with the internal circulating load of adjusting this recirculated water and softening this of moisturizing, use the salt amount.
4. the softening control system of moisturizing as claimed in claim 1, is characterized in that, the computing formula of this thermic load is: Q=Qmax (tn-t ' w)/(tn-tw);
Wherein, the outdoor temperature that t ' w is the user, the thermic load when outdoor temperature that Q is the user is t ' w, Qmax is the heat supply network maximum heating load, and tw is the outdoor heating accounting temperature of user, and tn is the indoor design heating temperature.
5. the softening control system of moisturizing as claimed in claim 2, is characterized in that, this normal temperature is 18 ℃.
6. control system is softened in moisturizing as claimed in claim 1, it is characterized in that, this control centre is according to the meteorological temperature on the same day, calculate the respectively thermic load of this heat exchange station, and according to the thermic load of this heat exchange station respectively and, determine the heating load of this steam generator system, with the internal circulating load of adjusting this recirculated water and softening this of moisturizing, use the salt amount.
7. control system is softened in moisturizing as claimed in claim 1, it is characterized in that, this control centre will be divided into a plurality of time intervals in one day, difference according to each time interval outdoor temperature, make this heat exchange station provide corresponding thermic load at each time interval according to corresponding outdoor temperature, this control centre determines the internal circulating load of this steam generator system at the recirculated water of each time interval according to this thermic load, and determine this rate of water make-up of each time interval and in moisturizing softening this use the salt amount.
8. the softening control method of moisturizing, is characterized in that, comprising:
According to the thermic load of this heat exchange station respectively and, adjust the heating load of this steam generator system;
According to the heating load of this steam generator system, determine the internal circulating load of the recirculated water of steam generator system;
Determine the rate of water make-up of this steam generator system according to the internal circulating load of the recirculated water of this steam generator system;
And according to this rate of water make-up and hardness of water be identified for moisturizing softening use the salt amount.
9. the softening control method of moisturizing as claimed in claim 8, is characterized in that, the heating load of adjusting this steam generator system comprises:
Obtain each user's indoor temperature, and this user's indoor temperature and a normal temperature are compared, according to comparative result and area of heat-supply service corresponding to each heat exchange station, calculate the respectively thermic load of this heat exchange station, and according to the thermic load of this heat exchange station respectively and, to determine the heating load of this steam generator system.
10. the softening control method of moisturizing as claimed in claim 8, is characterized in that, the heating load of adjusting this steam generator system comprises:
Obtain the temperature on average of a time period, this temperature on average and a normal temperature are compared, according to comparative result and area of heat-supply service corresponding to this heat exchange station, calculate the respectively thermic load of this heat exchange station, and according to the thermic load of this heat exchange station respectively and, determine the heating load of this steam generator system.
11. control method is softened in moisturizing as claimed in claim 8, it is characterized in that, the computing formula of this thermic load is: Q=Qmax (tn-t ' w)/(tn-tw);
Wherein, the outdoor temperature that t ' w is the user, the thermic load when outdoor temperature that Q is the user is t ' w, Qmax is the heat supply network maximum heating load, and tw is the outdoor heating accounting temperature of user, and tn is the indoor design heating temperature.
12. control method is softened in moisturizing as claimed in claim 9, it is characterized in that, this normal temperature is 18 ℃.
13. control method is softened in moisturizing as claimed in claim 8, it is characterized in that, the heating load of adjusting this steam generator system comprises:
According to the meteorological temperature on the same day, calculate the respectively thermic load of this heat exchange station, and according to the thermic load of this heat exchange station respectively and, determine the heating load of this steam generator system.
14. control method is softened in moisturizing as claimed in claim 8, it is characterized in that, the heating load of adjusting this steam generator system comprises:
A plurality of time intervals will be divided in one day, difference according to each time interval outdoor temperature, make this heat exchange station provide corresponding thermic load at each time interval according to corresponding outdoor temperature, calculate the respectively thermic load of this heat exchange station, and according to the thermic load of this heat exchange station respectively and, to determine the heating load of this steam generator system.
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Effective date of registration: 20200617 Address after: 010010 Jinxiuyuan community, 3.5km away from Beifu Road, airport expressway, Xincheng District, Hohhot City, Inner Mongolia Autonomous Region Patentee after: Hohhot Hongkun heat LLC Address before: 010020 Kuntai 1 building, sanliying street, Hohhot City, Inner Mongolia Autonomous Region Patentee before: Zhang Jiuming |
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