CN100402948C - Refrigerator with two compressors - Google Patents
- ️Wed Jul 16 2008
CN100402948C - Refrigerator with two compressors - Google Patents
Refrigerator with two compressors Download PDFInfo
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Publication number
- CN100402948C CN100402948C CNB200510094230XA CN200510094230A CN100402948C CN 100402948 C CN100402948 C CN 100402948C CN B200510094230X A CNB200510094230X A CN B200510094230XA CN 200510094230 A CN200510094230 A CN 200510094230A CN 100402948 C CN100402948 C CN 100402948C Authority
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- China Prior art keywords
- branch road
- compressor
- unit
- pressure relief
- valve Prior art date
- 2005-09-02 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
This invention relates to one compressor refrigerator, which comprises the following parts: first branch composed of first vapor set and first flow saving units; second branch composed of second vapor and second flow save unit; cooling recycle loop composed condensator and filter with each exit mouth connected through exit mouth between compressor and exit single valve through load unit into branch flow save entrance with branch terminal valve.
Description
Technical field:
The present invention relates to the steam compression type refrigerator.
Background technology:
Common refrigerator all is to adopt a compressor, a condenser etc. to constitute an independently refrigeration system.Existing utilize one independently the flow direction of refrigeration system by magnetic valve shunting or control cold-producing medium be expanded into relevant many cycle refrigeration systems, for example, the household refrigerator-freezer of machinery control, double temperature double control refrigerator, three circulation refrigerators, four circulation refrigerators etc.There is following weak point in this many loop structures form based on a refrigeration system:
When environment temperature than higher or disposable when putting into a large amount of food, refrigeration system can't in time satisfy the refrigeration requirement of each chamber, it is higher to cause the temperature inside the box to go up, perhaps cooling rate is very slow, influence food preservation and fresh-keeping.
There have some chamber to use to be frequent, and refrigeration system can't be taken other chamber into account, perhaps because continue refrigeration, make and the room temperature of the shared cascade evaporation device in this chamber spend low, food in the freezing case.
The evaporating temperature difference of each chamber causes the compressor operating instability.
When all will freeze in the chamber between more than two because refrigeration system can only be the refrigeration of freezing back, in its refrigerating circuit between the chamber must wait for the regular hour, influence food storage and fresh-keeping.
Summary of the invention:
The present invention is for avoiding above-mentioned existing in prior technology weak point, a kind of refrigerator with two compressors is provided, co-ordination by double-compressor, plural refrigerating circuit can be worked simultaneously, chamber cooling velocity between quickening, shorten refrigeration system to a response time of chamber refrigeration demand, the time that food and extend stores, improve fresh-keeping effect.
The technical scheme that technical solution problem of the present invention is adopted is:
Design feature of the present invention is to connect and compose first branch road by first compressor, first evaporator bank and first throttle units in series; Constitute second branch road by second compressor and second evaporator bank and the second throttling units in series; Described first branch road and second branch road are connected in parallel in the refrigeration cycle that includes condenser and filter; The exhaust outlet of each compressor connects condenser by exhaust check valve respectively, between exhaust outlet of compressor and exhaust check valve, insert the entrance side of the throttling unit that is arranged in branch road by pressure relief unit, be positioned at the arrival end of filter one side at described first branch road and second branch road, the branch road stop valve is set.
Compared with the prior art, beneficial effect of the present invention is embodied in:
Form by two compressors among the present invention two independently refrigeration system according to the demand of chamber between being controlled separately or refrigerated area, decision duty separately, and be not subjected to the influence of the duty of other chamber and the refrigeration system in parallel with it, two refrigeration systems may be worked respectively, also may work simultaneously.When two compressors are worked simultaneously, can accelerate a chamber cooling velocity greatly, shorten refrigeration system to a response time of the cold demand in chamber, in the food and extend storage time, improve fresh-keeping effect.
Fig. 1 is a structural representation of the present invention.
Fig. 2 is another embodiment structural representation of the present invention.
Fig. 3 is the another embodiment structural representation of the present invention.
Number in the figure: 1 first compressor, 2 second compressors, 3 first exhaust check valves, 4 second exhaust check valves, 5 condensers, 6 filters, 7 first branch road stop valves, 8 second branch road stop valves, 9 first throttle unit, 10 second throttling unit, 11 first evaporator bank, 12 second evaporator bank, 13 first pressure relief unit, 14 second pressure relief unit, 15 first magnetic valve groups, 16 second magnetic valve groups,
The specific embodiment:
Referring to Fig. 1, being connected in series by first compressor 1, first evaporator bank 11 and
first throttle unit9 constitutes first branch road; Connect with
second evaporator bank12 and the
second throttling unit10 by
second compressor2 and to constitute second branch road, first branch road and second branch road are connected in parallel in the refrigeration cycle that includes
condenser5 and
filter6, the shared
condenser5 of first branch road and second branch road and a
filter6 are formed two separate kind of refrigeration cycle.
The exhaust outlet of first compressor 1 and
second compressor2 connects
condenser5 by first
exhaust check valve3 and second
exhaust check valve4 respectively, make high-pressure refrigerant in the
condenser5 can reverse flow to compressor; Between the exhaust outlet and first
exhaust check valve3 of first compressor 1, insert the entrance side of the
first throttle unit9 that is arranged in first branch road by first pressure relief unit 13.Between the exhaust outlet and second
exhaust check valve4 of
second compressor2, insert the entrance side of the
second throttling unit10 that is arranged in second branch road by second
pressure relief unit14.
Be positioned at the arrival end of
filter6 one sides at first branch road and second branch road, the branch road stop valve is set, comprise the first branch
road stop valve7 and the second branch road stop valve 8.The branch road stop valve can stop high-pressure refrigerant to enter this branch road.
When compressor is not worked, pressure relief unit is opened, the branch road stop valve is closed, cold-producing medium enters evaporimeter by pressure relief unit, throttling unit successively in the compressor exhaust pipe, make the pressure at compressor suction, exhaust two ends obtain balance, therefore, when compressor is not worked, suction, exhaust two ends are in the low-pressure balance state, can start smoothly.
In concrete the enforcement:
Pressure relief unit comprises that first
pressure relief unit13 and second
pressure relief unit14 are for can or unloading pressure cutoff valve for the release capillary.
Porch in the
first throttle unit9 that is arranged in first branch road is provided with the first
magnetic valve group15; Porch in the
second throttling unit10 that is arranged in second branch road is provided with the arrival end that the second magnetic valve group, 16, the first
pressure relief unit13 insert in the first
magnetic valve group15; The arrival end that second
pressure relief unit14 inserts in the second magnetic valve group 16.Magnetic valve in each magnetic valve group can be the magnetic valve of general solenoid valve, impulse electromagnetic valve or step motor control.
According to refrigerator different between the cell structure setting, first evaporator bank 11 and
second evaporator bank12 can be an evaporimeter or a plurality of evaporator series or compose in parallel, capillary in the
first throttle unit9 and the 11 corresponding settings of first evaporator bank, capillary in the
second throttling unit10 and the 12 corresponding settings of second evaporator bank.
Form by two compressors two independently refrigeration system according to the demand of chamber between being controlled separately or refrigerated area, decision duty separately, and be not subjected to the influence of the duty of other chamber and the refrigeration system in parallel with it, two refrigeration systems may be worked respectively, also may work simultaneously.
One: the
second compressor2 of duty is not worked, 1 work of first compressor.The second branch road stop valve 8 is closed, the first branch
road stop valve7 is opened, first
pressure relief unit13 is closed, second
pressure relief unit14 is opened, second
exhaust check valve4 is closed under pressure naturally, cold-producing medium circulates in the circulatory system that is made of first branch road and
condenser5 etc., promptly gets back to first compressor 1 by first compressor 1 by first
exhaust check valve3,
condenser5,
filter6, the first branch
road stop valve7,
first throttle unit9 and evaporator bank 11, finishes kind of refrigeration cycle.
Two: the first compressors 1 of duty are not worked, 2 work of second compressor.The first branch
road stop valve7 is closed, the second branch road stop valve 8 is opened, second
pressure relief unit14 is closed, first
pressure relief unit13 is opened, first
exhaust check valve3 is closed under pressure naturally: cold-producing medium circulates in the circulatory system that is made of second branch road and
condenser5 etc., promptly get back to
second compressor2 by second
exhaust check valve4,
condenser5,
filter6, the second branch road stop valve 8, the
second throttling unit10 and
second evaporator bank12, finish kind of refrigeration cycle by
second compressor2.
Three: the first compressors 1 of duty and
second compressor2 are simultaneously in work.The first branch
road stop valve7 and the second branch road stop valve 8 are all opened, and first
pressure relief unit13 and second
pressure relief unit14 are all closed.First branch road and second branch road are worked simultaneously.Be cold-producing medium by first compressor 1,
second compressor2 respectively through first
exhaust check valve3, second
exhaust check valve4,
condenser5,
filter6, be divided into two-way then, one the tunnel gets back to compressor 1 through the first branch
road stop valve7,
first throttle unit9, first evaporator bank 11,
second compressor2 is got back to through the second branch road stop valve 8, the
second throttling unit10,
second evaporator bank12 in another road, finishes kind of refrigeration cycle separately respectively.
Four: the first compressors 1 of duty and
second compressor2 are not worked, the first branch
road stop valve7 and the second branch road stop valve 8 are closes, first
exhaust check valve3 and second
exhaust check valve4 are closed under pressure naturally, are all opened by the release path that first
pressure relief unit13 and second
pressure relief unit14 constitute.
In above duty explanation,
pressure relief unit13,14 all adopts stop valve.If as pressure relief unit, under then above four kinds of duties, pressure relief unit is opened all the time with capillary.Under the idle situation of compressor, the cold-producing medium between exhaust outlet and the exhaust check valve enters evaporimeter through pressure relief unit.Under the situation of compressor operating,,, do not influence the duty of refrigeration system basically so only there is a spot of cold-producing medium to enter evaporimeter by pressure relief unit because the flow resistance of cold-producing medium in capillary is far longer than the flow resistance in condenser.In order to guarantee that compressor is inhaled, the abundant balance of pressure at expulsion, when using capillary as pressure relief unit, compressor was greater than 5 minutes each downtime.
In the embodiment shown in Figure 2, the
second throttling unit10 in second branch road is a single capillary, therefore, compared to Figure 1, no longer needs to use the second
magnetic valve group16 among Fig. 2.When 1 work of first compressor, cold-producing medium enters
first throttle unit9 from the first branch
road stop valve7 through the first magnetic valve group 15.The first
magnetic valve group15 is made up of several magnetic valves, different capillary in the assignment system cryogen process
first throttle unit9 enters the different evaporators in first evaporator bank 11, realizes giving chamber or warm area difference or the effect of refrigeration simultaneously between difference by an independent loops.
In the embodiment shown in Figure 3, the
second throttling unit10 in the
first throttle unit9 in first branch road and second branch road is single capillary, therefore, compared to Figure 1, no longer needs to use the first
magnetic valve group15 and the second
magnetic valve group16 among Fig. 3.
In Fig. 1, Fig. 2, structure shown in Figure 3,
condenser5 in the refrigerant circulation loop and
filter6 are provided with routinely.Each independent loops can be that a single cycle also can be expanded into many circulatory systems.
Present embodiment can adopt automatically controlled or mechanical control.
Present embodiment can adopt air-cooled, the direct-cooled or air-cooled and direct-cooled type of cooling that combines.
Claims (4)
1. refrigerator with two compressors, it is characterized in that being connected in series by first compressor (1), first evaporator bank (1 1) and first throttle unit (9) constitutes first branch road; Connect with second evaporator bank (12) and the second throttling unit (10) by second compressor (2) and to constitute second branch road; Described first branch road and second branch road are connected in parallel in the refrigeration cycle that includes condenser (5) and filter (6); The exhaust outlet of each compressor connects condenser (5) by exhaust check valve (3,4) respectively, between exhaust outlet of compressor and exhaust check valve, insert the entrance side of the throttling unit (9,10) that is arranged in branch road by pressure relief unit (13,14), be positioned at the arrival end of filter one side at described first branch road and second branch road, branch road stop valve (7,8) is set.
2. refrigerator according to claim 1 is characterized in that described pressure relief unit (13,14) is the release capillary or unloads pressure cutoff valve.
3. refrigerator according to claim 1 is characterized in that described first evaporator bank (11) and second evaporator bank (12) are an evaporimeter or a plurality of evaporator series or compose in parallel.
4. refrigerator according to claim 1 is characterized in that the porch that is arranged in the throttling unit (9,10) of branch road described magnetic valve group (15,16) being set, and described pressure relief unit (13,14) inserts the arrival end in magnetic valve group (15,16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510094230XA CN100402948C (en) | 2005-09-02 | 2005-09-02 | Refrigerator with two compressors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510094230XA CN100402948C (en) | 2005-09-02 | 2005-09-02 | Refrigerator with two compressors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1924486A CN1924486A (en) | 2007-03-07 |
| CN100402948C true CN100402948C (en) | 2008-07-16 |
Family
ID=37817225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200510094230XA Expired - Fee Related CN100402948C (en) | 2005-09-02 | 2005-09-02 | Refrigerator with two compressors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100402948C (en) |
Families Citing this family (5)
* Cited by examiner, † Cited by third party| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968288B (en) * | 2010-10-22 | 2012-07-04 | 北京化工大学 | Absorption-compression composite refrigeration cycle system |
| KR102025738B1 (en) * | 2012-07-06 | 2019-09-27 | 삼성전자주식회사 | Refrigerator and heat exchanger for the same |
| CN105466061A (en) * | 2015-12-29 | 2016-04-06 | 西安交通大学 | Two-stage compression refrigerator system and working method thereof |
| CN105466062B (en) * | 2016-01-25 | 2018-07-03 | 珠海格力电器股份有限公司 | Refrigeration system of distribution cabinet |
| CN111578548B (en) * | 2020-05-25 | 2021-02-26 | 珠海格力电器股份有限公司 | Refrigerator refrigerating system and control method thereof |
Citations (8)
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|---|---|---|---|---|
| US5131237A (en) * | 1990-04-04 | 1992-07-21 | Danfoss A/S | Control arrangement for a refrigeration apparatus |
| JP2001201235A (en) * | 2000-01-14 | 2001-07-27 | Matsushita Refrig Co Ltd | Refrigerator-freezer |
| CN1313496A (en) * | 2000-03-15 | 2001-09-19 | 株式会社日立制作所 | Refrigerator |
| JP2003207220A (en) * | 2002-01-11 | 2003-07-25 | Sanyo Electric Co Ltd | Cooling device |
| CN2628969Y (en) * | 2003-04-02 | 2004-07-28 | 海尔集团公司 | Multi compressor variable capacity fixed frequency one with several air conditioner |
| US6860116B2 (en) * | 2002-09-18 | 2005-03-01 | Carrier Corporation | Performance enhancement of vapor compression systems with multiple circuits |
| CN1595023A (en) * | 2003-09-10 | 2005-03-16 | 日立家用电器公司 | Refrigerator |
| CN2809533Y (en) * | 2005-06-30 | 2006-08-23 | 合肥美菱股份有限公司 | Refrigerator with double compressors |
-
2005
- 2005-09-02 CN CNB200510094230XA patent/CN100402948C/en not_active Expired - Fee Related
Patent Citations (8)
* Cited by examiner, † Cited by third party| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5131237A (en) * | 1990-04-04 | 1992-07-21 | Danfoss A/S | Control arrangement for a refrigeration apparatus |
| JP2001201235A (en) * | 2000-01-14 | 2001-07-27 | Matsushita Refrig Co Ltd | Refrigerator-freezer |
| CN1313496A (en) * | 2000-03-15 | 2001-09-19 | 株式会社日立制作所 | Refrigerator |
| JP2003207220A (en) * | 2002-01-11 | 2003-07-25 | Sanyo Electric Co Ltd | Cooling device |
| US6860116B2 (en) * | 2002-09-18 | 2005-03-01 | Carrier Corporation | Performance enhancement of vapor compression systems with multiple circuits |
| CN2628969Y (en) * | 2003-04-02 | 2004-07-28 | 海尔集团公司 | Multi compressor variable capacity fixed frequency one with several air conditioner |
| CN1595023A (en) * | 2003-09-10 | 2005-03-16 | 日立家用电器公司 | Refrigerator |
| CN2809533Y (en) * | 2005-06-30 | 2006-08-23 | 合肥美菱股份有限公司 | Refrigerator with double compressors |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1924486A (en) | 2007-03-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 2007-03-07 | C06 | Publication | |
| 2007-03-07 | PB01 | Publication | |
| 2007-09-05 | C10 | Entry into substantive examination | |
| 2007-09-05 | SE01 | Entry into force of request for substantive examination | |
| 2008-07-16 | C14 | Grant of patent or utility model | |
| 2008-07-16 | GR01 | Patent grant | |
| 2018-11-16 | CP03 | Change of name, title or address |
Address after: 230601 No. 2163 Lianhua Road, Hefei economic and Technological Development Zone, Anhui Patentee after: CHANGHONG MEILING Co.,Ltd. Address before: 230001 No. 48 Wuhu Road, Hefei City, Anhui Province Patentee before: HEFEI MEILING Co.,Ltd. |
| 2018-11-16 | CP03 | Change of name, title or address | |
| 2022-08-12 | CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080716 Termination date: 20210902 |
| 2022-08-12 | CF01 | Termination of patent right due to non-payment of annual fee |