CN110319630B - Spraying control method, control system and air conditioner - Google Patents
Spraying control method, control system and air conditioner Download PDFInfo
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- CN110319630B CN110319630B CN201910584777.XA CN201910584777A CN110319630B CN 110319630 B CN110319630 B CN 110319630B CN 201910584777 A CN201910584777 A CN 201910584777A CN 110319630 B CN110319630 B CN 110319630B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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- Combustion & Propulsion (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a spraying control method, a control system and an air conditioner, belonging to the technical field of air conditioners. Compared with the prior art, the method has the advantages that the temperature of the air conditioning unit can be quickly and effectively reduced, the normal operation of the air conditioning system and the air side heat exchanger is effectively protected, the service life of the air side heat exchanger is prolonged, and the method is simple to operate and easy to implement.
Description
Technical Field
The invention relates to the technical field of evaporation and condensation, in particular to a spraying control method, a control system and an air conditioner.
Background
Along with the improvement of living standard of people, more and more people can buy the air conditioner, and the requirement to the high temperature resistance of air conditioner is higher and higher, and many producers reduce the high pressure under the high temperature condition through operations such as increase wind side heat exchanger, increase throttle aperture to guarantee the normal operating of system, but the unit does not have any measure that can meet an emergency, can only rely on the unit itself to support lasting high temperature, and compressor, wind side heat exchanger load are all great, influence its life.
Disclosure of Invention
The invention solves the problem that the air conditioning unit keeps high temperature, the high temperature can be reduced only by increasing the wind side heat exchanger, increasing the throttling path and the like, and the air conditioning unit does not have any measure for reducing the temperature.
In order to solve the problems, the invention provides a spraying control system which is applied to an air conditioner, wherein the air conditioner comprises a compression refrigeration device, an air side heat exchanger, a water side heat exchanger and an electronic expansion valve, the compression refrigeration device, the air side heat exchanger, the electronic expansion valve and the water side heat exchanger are sequentially communicated through pipelines to form a refrigeration/heating circulating system, a temperature sensor is arranged on the air side heat exchanger, and a spraying control pipeline connected with the water side heat exchanger is arranged above the air side heat exchanger.
Therefore, the system can be rapidly and effectively cooled, and the load of the air side heat exchanger and the normal operation of the system are effectively protected; the service life of the wind side heat exchanger is prolonged.
Optionally, the spraying control pipeline comprises a spraying pipeline, a proportional-integral regulating valve and an electromagnetic valve which are connected in sequence; the electromagnetic valve is connected with the water side heat exchanger.
Therefore, whether the spraying pipeline sprays or not can be controlled by opening and closing the proportional-integral regulating valve and the electromagnetic valve.
Optionally, a water spray hole is arranged on the spray pipeline.
Therefore, the water outlet mode and structure are limited, the structure is simple, and the water outlet is convenient.
Optionally, a water filter is further arranged between the electromagnetic valve and the water side heat exchanger.
Therefore, impurities in water can be filtered, and the service life of the wind side heat exchanger is prolonged.
Compared with the prior art, the spray control system can quickly and effectively cool the system and effectively protect the load of the wind side heat exchanger and the normal operation of the system; the service life of the wind side heat exchanger is prolonged.
The invention also provides a spraying control method, which comprises the steps that the unit obtains the opening degree of the electronic expansion valve in a refrigerating state; judging whether the opening of the electronic expansion valve meets a preset opening K or not, if so, enabling the unit to normally work; if not, acquiring the temperature of the wind side heat exchanger; and controlling whether the unit enters a spraying control working mode or not according to the temperature of the wind side heat exchanger.
Therefore, whether the unit enters a spraying control working mode or not can be controlled through the opening degree of the electronic expansion valve and the temperature of the air side heat exchanger. Can make unit rapid cooling improves the life of unit.
Optionally, the controlling, according to the temperature of the wind-side heat exchanger, whether the unit enters a spraying control working mode includes: when the temperature of the wind side heat exchanger is not greater than a first temperature threshold value, the unit normally works; and when the temperature of the wind side heat exchanger is greater than the first temperature threshold value, the unit enters a spraying control working mode.
Thereby, it is possible to control how the unit works depending on the wind side heat exchanger temperature.
Optionally, the spraying control working mode includes a first working mode and a second working mode, and when the temperature of the wind-side heat exchanger is greater than the first temperature threshold and not greater than a second temperature threshold, the unit enters the first working mode; and when the temperature of the wind side heat exchanger is greater than the second temperature threshold value, the unit enters the second working mode.
Therefore, different working modes can be selected according to the temperature of the air side heat exchanger in multiple working modes, and the cooling effect can be effectively and quickly achieved.
Optionally, the first operating mode includes: and opening an electromagnetic valve and a proportional-integral regulating valve, wherein the proportional-integral regulating valve is opened by 40-60%, closed after being opened for the first time, and kept for the second time, and then the temperature of the wind side heat exchanger is obtained until the temperature of the wind side heat exchanger is not more than the first temperature threshold value and the unit normally works.
Thereby, the operating condition of the unit in the first operating mode is further disclosed.
Optionally, the second operating mode includes opening the electromagnetic valve and the proportional-integral regulating valve, opening the proportional-integral regulating valve by 90% -100%, closing the proportional-integral regulating valve after opening for a third time, and obtaining the temperature of the wind-side heat exchanger after continuing for a fourth time until the temperature of the wind-side heat exchanger is not greater than the first temperature threshold value, and the unit operates normally.
Thereby, the operating condition of the unit in the second operating mode is further disclosed.
Compared with the prior art, the spraying control method and the spraying control system have the same advantages, and are not described again.
The invention also provides an air conditioner which comprises the spraying control system.
Compared with the prior art, the air conditioner and the spraying control system have the same advantages, and are not described in detail herein.
Drawings
FIG. 1 is a schematic structural diagram of a spray control system according to the present invention;
FIG. 2 is a schematic diagram of the operation of a spray control system of the present invention;
fig. 3 is a flow chart of a spray control method according to the present invention.
Description of reference numerals:
1-an electronic expansion valve; 2-a wind side heat exchanger; 3-a spray pipeline; 4-a temperature sensor; 5-proportional integral regulating valve; 6-electromagnetic valve; 7-a water filter; 8-water side heat exchanger; 9-a compression refrigeration device; 91-a compressor; a 92-four-way reversing valve; 93-gas-liquid separator.
Detailed Description
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
In the prior art, the air conditioning unit can only reduce the high temperature by increasing the air side heat exchanger, increasing the throttling path and the like, and the air conditioning unit does not have any measures for reducing the temperature.
In order to solve the problems, the invention provides a spraying control system which is applied to an air conditioner, the air conditioner comprises a compression refrigerating device 9, an air side heat exchanger 2, a water side heat exchanger 8 and an electronic expansion valve 1, the compression refrigerating device 9, the air side heat exchanger 2, the electronic expansion valve 1 and the water side heat exchanger 8 are sequentially communicated through pipelines to form a refrigerating/heating circulating system, a temperature sensor 4 is arranged on the air side heat exchanger 2, and a spraying control pipeline connected with the water side heat exchanger 8 is arranged above the air side heat exchanger 2. The system can be rapidly and effectively cooled, and the load of the wind side heat exchanger and the normal operation of the system are effectively protected; the service life of the wind side heat exchanger is prolonged.
The invention provides a spray control system which is applied to an air conditioner and comprises a compression refrigeration device 9, an air side heat exchanger 2, a water side heat exchanger 8 and an electronic expansion valve 1, wherein the compression refrigeration device 9, the air side heat exchanger 2, the electronic expansion valve 1 and the water side heat exchanger 8 are sequentially communicated through pipelines to form a refrigeration/heating circulation system, a temperature sensor 4 is arranged on the air side heat exchanger 2, and a spray control pipeline connected with the water side heat exchanger 8 is arranged above the air side heat exchanger 2.
The compression refrigeration device 9 comprises a compressor 91, a four-way reversing valve 92 and a gas-liquid separator 93, wherein the compressor 91 is connected with the upper ends of the gas-liquid separator 93 and the four-way reversing valve 92 respectively, the other end of the gas-liquid separator 93 is connected with the middle part of the lower end of the four-way reversing valve 92, and the left side and the right side of the lower end of the four-way reversing valve 92 are connected with a water side heat exchanger and a wind side heat exchanger. The water side heat exchanger is connected with the spraying pipeline 3, one end of the spraying pipeline 3 is arranged above the wind side heat exchanger 2, and the spraying pipeline 3 above the wind side heat exchanger 2 is provided with a plurality of water spraying holes for spraying water for cooling the wind side heat exchanger 2. A proportional integral regulating valve 5 and an electromagnetic valve 6 are sequentially arranged between the spraying pipeline 3 and the water side heat exchanger, and the proportional integral regulating valve 5 and the electromagnetic valve 6 are used for controlling the water side heat exchanger to provide water for the spraying pipeline 3. Still be provided with water filter 7 between solenoid valve 6 and the water side heat exchanger, water filter 7 can filter the impurity of water side heat exchanger as well as water, can effectually avoid wind side heat exchanger 2 to take place to damage.
The working principle is as follows:
the air side heat exchanger 2 starts refrigeration work, the spraying control system can automatically detect the opening degree of the electronic expansion valve 1, when the opening degree of the electronic expansion valve 1 is smaller than 450 steps, the spraying pipeline 3 does not work, when the opening degree of the electronic expansion valve 1 is larger than 450 steps, the temperature sensor 4 starts work, the temperature of the air side heat exchanger 2 is detected in real time, when the temperature detected by the temperature sensor 4 is smaller than 45 ℃, the spraying pipeline 3 does not work, and when the temperature detected by the temperature sensor 4 is larger than 45 ℃, the spraying pipeline 3 starts work. If the temperature detected by the temperature sensor 4 is higher than 45 ℃ and lower than or equal to 50 ℃, the electromagnetic valve 6 and the proportional-integral regulating valve 5 are opened at the same time, the proportional-integral regulating valve 5 is opened by 50 percent, the proportional-integral regulating valve 5 is closed after being opened for 2 minutes, the interval is 5 minutes, and the temperature of the temperature sensor 4 is detected again; if the detection temperature of the temperature sensor 4 is lower than 45 ℃, the electromagnetic valve 6 and the proportional-integral regulating valve 5 are closed, namely the spraying pipeline 3 is closed, and the air conditioning unit normally works. If the temperature detected by the temperature sensor 4 is higher than 50 ℃, the electromagnetic valve 6 and the proportional-integral regulating valve 5 are opened, the proportional-integral regulating valve 5 is opened by 100 percent, the proportional-integral regulating valve 5 is closed after being opened for 1 minute, and the temperature of the wind side heat exchanger 2 is detected again at an interval of 5 minutes. If the temperature detected by the temperature sensor 4 is higher than 50 ℃, the operation is continued; if the temperature detected by the temperature sensor 4 is higher than 45 ℃ and lower than or equal to 50 ℃, the electromagnetic valve 6 and the proportional-integral regulating valve 5 are opened, the proportional-integral regulating valve 5 is opened by 50 percent, the proportional-integral regulating valve 5 is closed after being opened for 2 minutes, the interval is 5 minutes, and the temperature of the wind side heat exchanger 2 is detected again; if the temperature detected by the temperature sensor 4 is higher than 45 ℃, the operation is continued, and if the temperature detected by the temperature sensor 4 is lower than or equal to 45 ℃, the electromagnetic valve 6 and the proportional-integral regulating valve 5 are closed, and the air conditioning unit is normal.
Compared with the prior art, the spraying control system provided by the embodiment is simple in structure and easy to implement, and the spraying pipeline 3 is automatically controlled to work by detecting the opening of the electronic expansion valve 1 and the temperature of the air-side heat exchanger 2. Effectively reduce wind side heat exchanger 2 temperature, improved the life of wind side heat exchanger 2.
In the following, with reference to fig. 3, the present invention further provides an implementation manner, in which a spray control method includes that a unit obtains an opening degree of an electronic expansion valve 1 in a refrigeration state; judging whether the opening degree of the electronic expansion valve 1 meets a preset opening degree K, if so, enabling the unit to normally work; if not, acquiring the temperature of the wind side heat exchanger 2; and controlling whether the unit enters a spraying control working mode or not according to the temperature of the wind side heat exchanger 2. The range of the preset opening K is 300 steps < K < 450 steps.
In the embodiment, the preset opening degree is 450 steps, when the opening degree of the electronic expansion valve 1 is smaller than 450 steps, the unit normally works, and when the opening degree of the electronic expansion valve 1 is larger than 450 steps, the temperature of the wind side heat exchanger 2 is obtained; and controlling whether the unit enters a spraying control working mode or not according to the temperature range of the wind side heat exchanger 2.
Specifically, when the temperature of the wind side heat exchanger 2 is not greater than a first temperature threshold value A1, the unit normally works; when the temperature of the wind side heat exchanger 2 is greater than a first temperature threshold value A1, the unit enters a spraying control working mode. In some specific embodiments, the first temperature threshold a1 is 45 ℃, that is, when the temperature of the wind-side heat exchanger 2 is less than or equal to 45 ℃, the air conditioning unit normally operates; when the temperature of the wind side heat exchanger 2 is higher than 45 ℃, the unit enters a spraying control working mode, and the unit selects to enter different spraying control working modes according to different temperatures of the wind side heat exchanger 2. The spraying control working mode comprises a first working mode and a second working mode. When the temperature of the wind side heat exchanger 2 is greater than a first temperature threshold value and not greater than a second temperature threshold value, the unit enters a first working mode; and when the temperature of the wind side heat exchanger 2 is greater than a second temperature threshold value, the unit enters the second working mode. In some embodiments, the second temperature threshold a2 is 50 ℃, i.e. when the wind side heat exchanger 2 temperature is greater than 45 ℃ and not greater than 50 ℃, the unit enters the first operating mode; and when the temperature of the wind side heat exchanger 2 is higher than 50 ℃, the unit enters the second working mode.
The first working mode of the invention comprises the steps of opening the electromagnetic valve 6 and the proportional-integral regulating valve 5, opening the proportional-integral regulating valve 5 by 40-60%, closing after opening for the first time, and continuously detecting the temperature of the wind side heat exchanger 2 at intervals of the second time until the temperature of the wind side heat exchanger 2 is not more than 45 ℃ of the first temperature threshold value, and the unit normally works.
The second working mode of the invention comprises the steps of opening the electromagnetic valve 6 and the proportional-integral regulating valve 5, opening the proportional-integral regulating valve 5 by 90-100%, closing after opening for the third time, and obtaining the temperature of the wind side heat exchanger 2 after continuing for the fourth time until the temperature of the wind side heat exchanger 2 is not more than the first temperature threshold value, and the unit normally works.
In some embodiments, the first time ranges from B1 to less than 2 minutes; the second time is in a range of not less than 5 minutes and not more than 10 minutes; the third time range is not more than 1 minute, and the fourth time range is not less than 5 minutes and not more than 10 minutes. In the present embodiment, the first time threshold B1 is 2 minutes, and the third time threshold B3 is 1 minute. When the first working mode is started within 2 minutes, the fluctuation in a water system is small, the heat exchange performance is influenced to be less than 2%, the operation of the whole machine is not influenced, at the moment, water with the size of 40-60% of the spraying pipe diameter is continuously sprayed into the condenser, the condensation temperature is effectively reduced, and the condensation effect is improved; when the starting time is more than 2 minutes, the water quantity is gradually lost, so that the performance of the unit is gradually attenuated, and the protection machine is shut down; when the second working mode is started within 1 minute, the fluctuation in the water system is small, the heat exchange performance is influenced to be less than 3%, the operation of the whole machine is not influenced, at the moment, water with the size of 90-100% of the spraying pipe diameter is continuously sprayed into the condenser, the condensation temperature can be quickly reduced, and the condensation effect is improved; when the starting time is more than 1 minute, the water quantity is gradually lost, so that the performance of the unit is gradually attenuated, and the protection machine is shut down.
In some preferred embodiments, when the temperature of the wind side heat exchanger 2 is greater than 45 ℃ and not greater than 50 ℃, the unit enters a first working mode, wherein the first working mode comprises opening the electromagnetic valve 6 and the proportional-integral regulating valve 5, the proportional-integral regulating valve 5 is opened by 40-60%, and is closed after being opened for 2 minutes, and the temperature of the wind side heat exchanger 2 is detected again after being spaced for 5 minutes; at the moment, if the temperature of the wind side heat exchanger 2 is higher than 45 ℃, the operation is continued, and if the temperature of the wind side heat exchanger 2 is lower than or equal to 45 ℃, the electromagnetic valve 6 and the proportional-integral regulating valve 5 are closed, and the air conditioning unit normally works. When the temperature of the wind side heat exchanger 2 is higher than 50 ℃, the unit enters a second working mode, the second working mode comprises the steps of opening the electromagnetic valve 6 and the proportional-integral regulating valve 5, opening the proportional-integral regulating valve 5 by 100%, closing after opening for 1 minute, detecting the temperature of the wind side heat exchanger 2 again at an interval of 5 minutes. If the temperature of the wind side heat exchanger 2 is higher than 50 ℃, the operation is continued; if the temperature of the wind side heat exchanger 2 is higher than 45 ℃ and not higher than 50 ℃, the electromagnetic valve 6 and the proportional-integral regulating valve 5 are opened, the proportional-integral regulating valve 5 is opened by 50%, the wind side heat exchanger 2 is closed after being opened for 2 minutes, the interval is 5 minutes, and the temperature of the wind side heat exchanger 2 is detected again; if the temperature of the wind side heat exchanger 2 is higher than 45 ℃, the operation is continued, and if the temperature of the wind side heat exchanger 2 is lower than or equal to 45 ℃, the electromagnetic valve 6 and the proportional-integral regulating valve 5 are closed, and the air conditioning unit normally works.
Compared with the prior art, the spraying control method provided by the embodiment can quickly and effectively reduce the temperature of the air conditioning unit, effectively protect the normal operation of the air conditioning system and the wind-side heat exchanger 2, prolong the service life of the wind-side heat exchanger 2, and is simple to operate and easy to implement. The opening degree of the electronic expansion valve 1 and the temperature of the air-side heat exchanger 2 are obtained, so that the spraying control system is controlled to cool.
The invention also provides another embodiment mode, and aims to provide an air conditioner which comprises the spraying control system in the embodiment mode.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. A spraying control system is applied to an air conditioner, the air conditioner comprises a compression refrigerating device (9), an air side heat exchanger (2), a water side heat exchanger (8) and an electronic expansion valve (1), the compression refrigerating device (9), the air side heat exchanger (2), the electronic expansion valve (1) and the water side heat exchanger (8) are sequentially communicated through pipelines to form a refrigerating/heating circulating system, the air conditioner is characterized in that a temperature sensor (4) is arranged on the air side heat exchanger (2), a spraying control pipeline connected with the water side heat exchanger (8) is arranged above the air side heat exchanger (2), the spraying control pipeline comprises a spraying pipeline (3), a proportional-integral regulating valve (5) and an electromagnetic valve (6) which are sequentially connected, and a unit of the air conditioner is in a refrigerating state according to the temperature of the air side heat exchanger (2), controlling the unit to enter a spraying control working mode, wherein the spraying control working mode comprises a first working mode and a second working mode,
the first operating mode includes: opening the electromagnetic valve (6) and the proportional-integral regulating valve (5), wherein the proportional-integral regulating valve (5) is opened by 40-60%, is closed after being opened for a first time, and is closed at an interval of a second time, and the temperature of the wind side heat exchanger (2) is continuously detected until the temperature of the wind side heat exchanger (2) is not greater than a first temperature threshold value, and the unit normally works;
the second operating mode includes: and opening the electromagnetic valve (6) and the proportional-integral regulating valve (5), wherein the proportional-integral regulating valve (5) is opened by 90-100%, is closed after being opened for a third time, and is kept for a fourth time to obtain the temperature of the wind side heat exchanger (2) until the temperature of the wind side heat exchanger (2) is not greater than the first temperature threshold value, and the unit normally works.
2. The spray control system according to claim 1, characterized in that the spray pipe (3) is provided with water spray holes.
3. Spray control system according to claim 1, characterized in that a water filter (7) is further arranged between the solenoid valve (6) and the water side heat exchanger (8).
4. A spray control method for a spray control system according to any one of claims 1 to 3, characterized by comprising the steps of obtaining the opening degree of an electronic expansion valve (1) by a unit in a refrigeration state; judging whether the opening degree of the electronic expansion valve (1) meets a preset opening degree K or not, if so, enabling the unit to normally work; if not, acquiring the temperature of the wind side heat exchanger (2); controlling whether the unit enters a spraying control working mode or not according to the temperature of the wind side heat exchanger (2), wherein the spraying control working mode comprises a first working mode and a second working mode,
the first operating mode includes: opening an electromagnetic valve (6) and a proportional-integral regulating valve (5), wherein the proportional-integral regulating valve (5) is opened by 40-60%, is closed after being opened for a first time, and is kept for a second time, and then the temperature of the wind side heat exchanger (2) is obtained until the temperature of the wind side heat exchanger (2) is not greater than the first temperature threshold value, and the unit normally works;
and the second working mode comprises the steps of opening the electromagnetic valve (6) and the proportional-integral regulating valve (5), opening the proportional-integral regulating valve (5) by 90-100%, closing after opening for a third time, and obtaining the temperature of the wind side heat exchanger (2) after continuing for a fourth time until the temperature of the wind side heat exchanger (2) is not greater than the first temperature threshold value, and the unit normally works.
5. The spray control method according to claim 4, wherein the controlling whether the unit enters a spray control operating mode or not according to the temperature of the wind side heat exchanger (2) comprises: when the temperature of the wind side heat exchanger (2) is not greater than a first temperature threshold value, the unit normally works; and when the temperature of the wind side heat exchanger (2) is greater than the first temperature threshold value, the unit enters a spraying control working mode.
6. The spray control method according to claim 5, characterized in that the unit enters the first operating mode when the wind side heat exchanger (2) temperature is greater than the first temperature threshold and not greater than a second temperature threshold; and when the temperature of the wind side heat exchanger (2) is greater than the second temperature threshold value, the unit enters the second working mode.
7. An air conditioner characterized by comprising the spray control system of any one of claims 1 to 3.
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| CN201910584777.XA CN110319630B (en) | 2019-07-01 | 2019-07-01 | Spraying control method, control system and air conditioner |
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| CN201910584777.XA CN110319630B (en) | 2019-07-01 | 2019-07-01 | Spraying control method, control system and air conditioner |
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| CN110319630A CN110319630A (en) | 2019-10-11 |
| CN110319630B true CN110319630B (en) | 2021-05-18 |
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| CN111578470B (en) * | 2020-05-13 | 2021-09-21 | 青岛海尔空调器有限总公司 | Spraying control method of air conditioning system |
| CN111578454B (en) * | 2020-05-13 | 2021-09-21 | 青岛海尔空调器有限总公司 | Control method of air conditioning system |
| CN114593473B (en) * | 2022-03-11 | 2024-01-19 | 广东美的暖通设备有限公司 | Control method based on air conditioning system and air conditioning system |
| CN116772304A (en) * | 2022-03-11 | 2023-09-19 | 广东美的暖通设备有限公司 | Spraying system, control method and device of spraying system and electronic equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GR1004846B (en) * | 2004-02-20 | 2005-03-23 | Μιχαλης Βραχοπουλος | Built evaporative condenser |
| CN201074934Y (en) * | 2007-08-01 | 2008-06-18 | 安徽省星科工贸有限公司 | Air source heat pump water heating machine equipped with defrosting device |
| CN104154691A (en) * | 2014-04-26 | 2014-11-19 | 江西省沃普思电气股份有限公司 | Multifunctional auxiliary system of air-cooled cold and hot water unit |
| CN104633988A (en) * | 2015-02-03 | 2015-05-20 | 珠海格力电器股份有限公司 | Air-cooled cold and hot water air conditioning system and control method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130061615A1 (en) * | 2011-09-08 | 2013-03-14 | Advanced Technical Solutions Gmbh | Condensate-free outdoor air cooling unit |
-
2019
- 2019-07-01 CN CN201910584777.XA patent/CN110319630B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GR1004846B (en) * | 2004-02-20 | 2005-03-23 | Μιχαλης Βραχοπουλος | Built evaporative condenser |
| CN201074934Y (en) * | 2007-08-01 | 2008-06-18 | 安徽省星科工贸有限公司 | Air source heat pump water heating machine equipped with defrosting device |
| CN104154691A (en) * | 2014-04-26 | 2014-11-19 | 江西省沃普思电气股份有限公司 | Multifunctional auxiliary system of air-cooled cold and hot water unit |
| CN104633988A (en) * | 2015-02-03 | 2015-05-20 | 珠海格力电器股份有限公司 | Air-cooled cold and hot water air conditioning system and control method thereof |
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