CN112178864B - Air conditioner pollutant detection method, control method and air conditioner - Google Patents

Referring to fig. 1 in combination, according to an embodiment of the present application, a method for detecting contaminants in an

1 includes the following steps:

controlling the

1 to sweep air at a sweeping angle, so that air flow flows from an air outlet of the

1 to a target area and then flows to the

1;

and the pollutant concentration is detected, so that the pollutant concentration at the specific position of the indoor 4 can be accurately judged. The air flow moves through the operation of the inner fan, so that pollutants in a target area enter a

3 of the

2, more accurate pollutant concentration is determined by combining pollutant concentration balance time, an air flow circulation coefficient and a concentration attenuation coefficient, whether indoor 4 air needs to be purified is determined, and what purification mode is operated, how to adjust the optimal operation parameters of the

1 and the like are determined. Therefore, misjudgment caused by the fact that only pollutants around the

1 are detected and real air quality information cannot be obtained is avoided, and the effect of real health cannot be achieved. The air flow direction is adjusted through the air sweeping mechanism, so that pollutants at specific positions can be conveyed to the

1 along with the air flow in the best path for detection, the pollutant detection range of the

1 is improved, and meanwhile, the detection and judgment of the pollutant concentration at different specific positions in the

4 are realized. Relevant operation parameters of the

1 are adjusted and optimized by combining with the real indoor 4 pollution situation, so that the

1 is in the best state in aspects of health, comfort, energy conservation, noise and the like during operation, and the health comfort of people is improved.

acquiring the space volume V of the

1, the wind speed V of a fan of the

1 at a wind sweeping angle and an airflow circulation coefficient alpha;

According to the embodiment of the application, the

1 is provided, and the

1 is used for realizing the pollutant detection method of the

1.

According to an embodiment of the present application, a method for controlling an

1 is provided, where the

1 is the

1 described above.

and determining the operation mode of the

1 according to the target area pollutant purification concentration Ct.

Further, determining the operation mode of the

1 according to the target area pollutant purification concentration Ct includes the following steps:

when Ct < C1, controlling the

1 to enter a heat exchange mode;

and/or controlling the

1 to enter a purification mode when Ct is larger than or equal to C1; wherein C1 is a first predetermined contaminant concentration;

and/or, when Ct < C2, controlling the

1 to enter the heat exchange mode and the purification mode simultaneously; wherein C2 is a second predetermined contaminant concentration;

and/or, when Ct is larger than C2, controlling the

1 to enter a purification mode; where C2 is the second predetermined contaminant concentration.

Further, when Ct < C2, controlling the

1 to enter the heat exchange mode and the purification mode simultaneously, further comprising the following steps:

The indoor unit of the

1 is provided with an air inlet, an inner fan and an air outlet; the air outlet is provided with an air sweeping mechanism; an air quality detection unit is arranged in the air channel communicated with the air inlet and the air outlet; the indoor unit further includes a spatial position detection unit. The control method comprises the following steps:

1. the

1 operates in the purification mode.

3. And controlling the air-sweeping mechanism of the

1 to operate and moving to a specified air-sweeping angle according to the corresponding relation between the target position and the air-sweeping angle.

4. And controlling the fan in the

1 to be started and run according to a certain wind speed v.

(1) and acquiring the space volume V of the target area of the installation environment of the

1.

The size of the space volume is written into a corresponding control program when the

1 is produced;

preferably, the space volume is related to parameters such as the number of

1, or the cooling capacity, or the specification of the

1, or the recommended use area.

further, the size of the space volume may also be entered by an installer at the time of installation of the

1 according to specific installation conditions.

Further, the size of the space volume can be automatically judged by the

1 through detection.

(2) The operating time t of the

1 is determined by empirical calculation.

when Ct is less than C1, judging yes, indicating that the air in the target area is clean, and directly operating the

1 mode without air purification; and when the Ct is larger than or equal to C1, judging that the air is dirty in the target area, and operating the

1 in a purification mode. Wherein C1 is a pollutant concentration judgment standard value, preferably 0< C1 ≤ 0.035mg/

3.

8. Further, the operation mode of the

1 is judged according to the pollutant concentration condition:

when Ct < C2, it is determined that there is a contamination in the target area, but the contamination situation is general, the

1 may perform cooling or heating synchronously while performing purification, that is, the air conditioning mode + the purification mode, to ensure the unity of health and comfort; when Ct is greater than C2, it is determined as no, which indicates that the target area is polluted and the pollution is serious, and it is necessary to first operate the purification mode to purify the indoor 4 air, and then perform cooling or heating, i.e., the purification mode. Wherein, C2 is a pollutant concentration judgment standard value, preferably 0< C2 ≤ 0.075mg/

3.

Further, the

1 can further refine the pollutant concentration to different levels, and determine different operation parameters according to the different levels, so as to ensure the optimization and unification in the aspects of health, comfort, energy conservation, noise and the like.

The operation parameters include the ratio of the purification mode to the air-conditioning mode, and the operation parameters and purification parameters of the

1 corresponding to different pollutant concentration levels in each mode.

The operation parameters of the

1 include, but are not limited to, air volume, air speed, air deflector movement mode, frequency, compressor operation frequency, environment temperature and humidity, and the like.

9. And controlling the

1 to operate according to the corresponding mode and parameters.

In order to achieve the above object, the present application further provides a control apparatus of an

1, as shown in fig. 1, which performs the above control method. The indoor unit of the

1 is provided with an air inlet, an inner fan and an air outlet; the air outlet is provided with an air sweeping mechanism; an air quality detection unit is arranged in the air channel communicated with the air inlet and the air outlet; the indoor unit further includes a spatial position detection unit. Wherein fig. 1 shows the air deflector centered and the wind sweeping blade to the left. The control device includes:

the analysis module is used for judging whether the equilibrium concentration is reached or not, whether purification is needed or not and what mode is executed according to the detected pollutant concentration and calculating the pollutant concentration detection running time of the

1 by combining related parameters; the method is used for determining a wind sweeping angle, an airflow circulation coefficient, a concentration attenuation coefficient and the like according to the target position.

And the processing module is used for optimizing the relevant operating parameters of the

1 according to the pollutant concentration condition and controlling the

1 to operate according to the corresponding operating parameters.

In order to achieve the above object, the present application further provides an

1 including the above control method and apparatus.

The indoor unit of the

1 is provided with an air inlet, an inner fan and an air outlet; the air outlet is provided with an air sweeping mechanism; an air quality detection unit is arranged in the air channel communicated with the air inlet and the air outlet; the indoor unit further includes a spatial position detection unit.

By adopting the technical route of the application, firstly, the

1 can move air flow through the operation of the inner fan when in operation, more accurate pollutant concentration is determined by combining the pollutant concentration balance time, the air flow circulation coefficient and the concentration attenuation coefficient detection, and then whether the indoor 4 air needs to be purified, which purification mode is in operation, and how to adjust the optimal operation parameters of the

1 and the like are determined. Therefore, misjudgment caused by the fact that only pollutants around the

1 are detected and real air quality information cannot be obtained is avoided, and the effect of real health cannot be achieved. Secondly, the direction of the air flow is adjusted through the air sweeping mechanism, so that pollutants at specific positions can be conveyed to the

1 along with the air flow in an optimal path for detection, the detection range of the pollutants in the

1 is improved, and the detection and judgment of the concentrations of the pollutants at different specific positions in the

4 are realized. Finally, relevant operation parameters of the

1 are adjusted and optimized by combining the real indoor 4 pollution conditions obtained through detection, so that the

1 can operate in the best state in aspects of health, comfort, energy conservation, noise and the like, and the health and comfort of people are improved.

In order to achieve the above object, the present application provides a simple implementation description of a purification control method for an

1, as shown in fig. 2-5. FIG. 2 shows the air deflector facing downward and the wind sweeping blade facing rightward; FIG. 3 shows the air deflector centered with the wind-sweeping blades facing right; fig. 4 shows the air deflector down and the wind-sweeping blade centered.

The

1 is a 1.5-piece machine, and thus the installation space volume size V is set to 20 × 3m3 (room 20 is flat, height 3m), and a corresponding control program is written when the

1 is produced.

The indoor unit of the

1 is provided with an air inlet, an inner fan and an air outlet; the air outlet is provided with an air sweeping mechanism; the wind sweeping mechanism comprises an upper wind sweeping wind deflector, a lower wind sweeping wind deflector, a left wind sweeping blade and a right wind sweeping blade.

The

1 performs sterilization by an ion purification method.

1. the

1 operates in the purification mode.

3. And controlling the air-sweeping mechanism of the

1 to operate, determining the optimal air-sweeping angle as the air deflector is centered and the air-sweeping blade is left according to the relation between the target position and the air-sweeping angle, and controlling the air-sweeping mechanism to move to the air-sweeping angle.

4. And controlling the fan in the

1 to be started and run according to the wind speed vmax.

5. And determining the operation duration time t as V/(vmax & alpha 4) by combining the space volume V, the wind speed vmax and the airflow

4, and controlling the air quality detection unit to detect and acquire the pollutant concentration C after a certain time t.

6. And determining the target area pollutant purification concentration Ct as C/

4 by combining the concentration

4.

Further, the current default ion output content of the

1 meets the current pollutant concentration purification requirement without adjusting the ion output quantity.

8. And keeping the current wind sweeping angle unchanged, and controlling the

1 to start an ion purification mode to purify the corresponding target area.