CN210832643U - Air conditioning system - Google Patents
Air conditioning system Download PDFInfo
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- CN210832643U CN210832643U CN201921830349.2U CN201921830349U CN210832643U CN 210832643 U CN210832643 U CN 210832643U CN 201921830349 U CN201921830349 U CN 201921830349U CN 210832643 U CN210832643 U CN 210832643U
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- conditioning system
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The utility model discloses an air conditioning system, wherein, air conditioning system includes outdoor unit, indoor unit, compressor and refrigerant circulation circuit, and the refrigerant entry of the refrigerant export of compressor, outdoor unit, indoor unit, compressor communicates through refrigerant circulation circuit in proper order, and air conditioning system still includes bypass line and concatenates control valve and throttling arrangement on bypass line, and bypass line's one end and the refrigerant export intercommunication of compressor, the other end communicates with the refrigerant entry of compressor. The utility model discloses air conditioning system's bypass line can heat the gaseous state refrigerant bypass to the side of admitting air (low pressure side) of compressor of the side of exhausting of compressor when starting at the low temperature to improve evaporating pressure, reduced the compression ratio of system, and then improved system reliability. And compared with the liquid refrigerant in the heating evaporation compressor using the electric heating belt, the power consumption can be reduced, and the requirement of excessive liquid refrigerant can be met.
Description
Technical Field
The utility model relates to an air conditioning technology field, in particular to air conditioning system.
Background
Generally, an air conditioning system operates in heating mode with an outdoor heat exchanger as an evaporator and an indoor heat exchanger as a condenser. When the outdoor environment temperature is low, most of the refrigerant of the air conditioner is transferred to the outdoor heat exchanger and the compressor. If the heating mode is turned on at this time, the outdoor heat exchanger and the liquid refrigerant in the compressor need to be evaporated by means of a large amount of heat generated by the compressor. Therefore, in the initial stage of low-temperature heating starting of the air conditioning system, the low pressure of the system is difficult to build, and the low pressure is low, so that the compression ratio is too high, the design requirement range of the compressor is easily exceeded, and the reliability of the system is influenced.
At present, an electric heating belt is mainly added at the bottom of a compressor of an air conditioning system, and liquid refrigerants in the compressor are evaporated through heating of the electric heating belt. However, the use of the electric heating tape increases the cost and power consumption of the air conditioner; and under the condition that the system is large and the refrigerant needs to be added, the electric heating is not enough to solve the problem of excessive liquid refrigerant.
The above is only for the purpose of assisting understanding of the technical solution of the present invention, and does not represent an admission that the above is the prior art.
SUMMERY OF THE UTILITY MODEL
The main object of the present invention is to provide an air conditioning system, which is aimed at solving one or more of the above-mentioned technical problems.
In order to achieve the above object, the utility model provides an air conditioning system includes outdoor unit, indoor unit, compressor and refrigerant circulation circuit, the refrigerant export of compressor outdoor unit the indoor unit the refrigerant entry of compressor passes through refrigerant circulation circuit communicates in proper order, wherein, air conditioning system still includes bypass line and concatenates control valve and throttling arrangement on the bypass line, bypass line's one end with the refrigerant export intercommunication of compressor, the other end with the refrigerant entry intercommunication of compressor.
In an embodiment, a discharge pipe is disposed at a refrigerant outlet of the compressor, the air conditioning system further includes an oil separator, an inlet of the oil separator is connected to the discharge pipe, and an outlet of the oil separator is connected to the bypass line.
In an embodiment, a refrigerant inlet of the compressor is provided with a suction pipe, the air conditioning system further includes a gas-liquid separator, an air outlet of the gas-liquid separator is connected with the suction pipe, and an air inlet of the gas-liquid separator is connected with the bypass pipeline.
In one embodiment, the throttling device comprises an electronic expansion valve and/or a capillary tube.
In an embodiment, the control valve includes an electromagnetic valve, and the bypass line includes a bypass pipe, and the bypass pipe is sequentially connected to the refrigerant outlet of the compressor, the control valve, the throttling device, and the refrigerant inlet of the compressor.
In one embodiment, the air conditioning system further comprises a four-way valve, a first end of the four-way valve is communicated with the outlet of the oil separator, a second end of the four-way valve is communicated with the air inlet of the gas-liquid separator, a third end of the four-way valve is communicated with the outdoor unit, and a fourth end of the four-way valve is communicated with the indoor unit;
one end of the bypass pipeline close to the gas-liquid separator is connected to a pipeline between the second end of the four-way valve and the gas inlet of the gas-liquid separator.
In one embodiment, the number of the indoor units is plural, and the plural indoor units are connected to the outdoor unit in parallel.
In one embodiment, the throttling device comprises a capillary tube having a tube inside diameter greater than or equal to 1.1mm and less than or equal to 3 mm.
In one embodiment, the capillary has a tube inside diameter greater than or equal to 2.1mm and less than or equal to 2.4 mm.
In one embodiment, the air conditioning system further comprises:
the acquisition circuit is used for acquiring outdoor environment temperature;
the comparison circuit is used for comparing the outdoor environment temperature when the compressor is started with a preset outdoor environment temperature value;
the timing circuit is used for calculating the starting time of the compressor and comparing the starting time with a preset time value;
the execution circuit is used for opening the control valve when the outdoor environment temperature is lower than a preset outdoor temperature value when the compressor is started and the starting time of the compressor is lower than a preset time value;
and when the starting time of the compressor is greater than a preset time value, closing the control valve.
The utility model discloses air conditioning system just sets up control valve and throttling arrangement on the bypass pipeline through setting up the bypass pipeline between the refrigerant export of compressor and refrigerant entry, so, the break-make of bypass pipeline can be controlled to the control valve, throttling arrangement can control the flow and the velocity of flow that the refrigerant passes through the bypass pipeline, thereby the bypass pipeline can be at low temperature heat the gaseous state refrigerant bypass to the side of admitting air (the low pressure side) of compressor of the side of exhausting of compressor when starting, thereby improve evaporating pressure, the compression ratio of system has been reduced, and then improve system reliability. And compared with the liquid refrigerant in the heating evaporation compressor using the electric heating belt, the power consumption can be reduced, and the requirement of excessive liquid refrigerant can be met.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of an air conditioning system of the present invention;
fig. 2 is a schematic structural diagram of another embodiment of the air conditioning system of the present invention;
fig. 3 is a schematic structural diagram of another embodiment of the air conditioning system of the present invention;
fig. 4 is a schematic structural diagram of another embodiment of the air conditioning system of the present invention;
fig. 5 is a schematic structural diagram of another embodiment of the air conditioning system of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
320 | |
700 | |
| 110 | Four- |
400 | |
800 | |
| 200 | |
500 | |
900 | Gas- |
| 300 | Compressor with a compressor housing having a plurality of |
510 | |
||
| 310 | |
600 | Control valve |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is 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 addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B" including either scheme A, or scheme B, or a scheme in which both A and B are satisfied.
The utility model provides an air conditioning system.
In the embodiment of the present invention, as shown in fig. 1 to 5, this air conditioning system includes outdoor unit 100, indoor unit 200, compressor 300 and refrigerant circulation loop 400, the refrigerant outlet of compressor 300, outdoor unit 100, indoor unit 200, the refrigerant inlet of compressor 300 communicates in proper order through refrigerant circulation loop 400, wherein, air conditioning system still includes bypass pipeline 500 and concatenates control valve 600 and throttling arrangement 700 on bypass pipeline 500, bypass pipeline 500's one end communicates with compressor 300's refrigerant outlet, the other end communicates with compressor 300's refrigerant inlet.
In this embodiment, the outdoor unit 100 may be an outdoor heat exchanger, the indoor unit 200 may be an indoor heat exchanger or a water temperature adjusting module, and the water temperature adjusting module may be a hydraulic module or a water tank module, etc. The indoor unit 200 may be one or a plurality of indoor units connected in parallel, and is not particularly limited herein. The compressor 300 has a discharge pipe 310 at a refrigerant outlet and a suction pipe 320 at a refrigerant inlet. The outdoor unit 100, the indoor unit 200, and the compressor 300 are connected by a refrigerant circulation line to cool or heat the indoor unit 200. It is understood that the control valve 600 can control the on/off of the bypass line 500, and the control valve 600 is exemplified as a solenoid valve in the following. In one embodiment, the throttling device 700 may be a capillary tube and/or an electronic expansion valve. The flow rate and the flow velocity of the refrigerant in the bypass line 500 can be controlled by the throttle device 700. If the throttle device 700 is not provided in the bypass line 500, the refrigerant amount in the normal flow path (i.e., the refrigerant flow path to the indoor unit 200 or the outdoor unit 100) is reduced when the control valve 600 is opened, which affects the energy efficiency of the outdoor unit 100 and the indoor unit 200. Meanwhile, after the control valve 600 is closed, the low pressure becomes low. By arranging the throttling device 700, the bypass pipeline 500 and the conventional pipeline can be ensured to keep corresponding refrigerant flowing, so that the problems that the low pressure of the system is difficult to build and the low pressure is low at the initial stage of low-temperature heating starting of the air conditioning system, so that the compression ratio is too high and easily exceeds the design requirement range of the compressor 300 are solved, and the reliability of the system is further improved.
The air conditioning system further comprises an acquisition circuit, a comparison circuit, a timing circuit and an execution circuit, wherein the acquisition circuit is used for acquiring the outdoor environment temperature; the comparison circuit is used for comparing the outdoor environment temperature when the compressor 300 is started with a preset outdoor environment temperature value; the timing circuit is used for calculating the starting time of the compressor 300 and comparing the starting time with a preset time value; the execution circuit is used for opening the control valve 600 when the outdoor environment temperature when the compressor 300 is started is less than the preset outdoor temperature value and the starting time of the compressor 300 is less than the preset time value; when the on-time of the compressor 300 is greater than the preset time value, the control valve 600 is closed.
In the heating mode, and when the compressor 300 is turned on from a stop. Firstly, collecting outdoor environment temperature, and judging whether the outdoor environment temperature during starting is less than the set outdoor environment temperature. The acquisition circuit includes an outdoor temperature sensor. The outdoor ambient temperature can be obtained by an outdoor temperature sensor arranged on the outdoor heat exchanger according to a set sampling frequency (such as a current value or a voltage value), and is directly output to one I/O port of the controller. The outdoor ambient temperature can also be measured by temperature sensors arranged at other outdoor positions and transmitted to the controller through different communication modes. The communication means includes, but is not limited to, wired communication or wireless communication. If in the form of wireless communications, these communications may be in a one-to-one communication mode, or through one or more servers in a local area network, or through cloud servers. And further judging whether the outdoor environment temperature during starting is less than the set outdoor environment temperature through a comparison circuit. The set outdoor ambient temperature may be set according to the saturation temperature of different refrigerants, and normally, a failure in starting is likely to occur at the set outdoor ambient temperature.
If the outdoor environment temperature at the starting time is less than the set outdoor environment temperature, the air conditioning system works in the low-temperature environment. Next, the on-time of the compressor 300 is calculated by the timer circuit, and it is determined whether the on-time of the compressor 300 is lower than a preset on-time. The timing circuit may include a timer, a timing module, and the like. And transmitting the timing information to the controller by means of wired communication or wireless communication. The execution circuit can be a circuit with controllable on-off. If it is determined that the air conditioning system is not in the heating mode, the outdoor ambient temperature when the compressor 300 is started is greater than the preset outdoor temperature value, the compressor 300 is not started from the stop state, and the starting time of the compressor 300 is greater than one or more of the preset time values, the circuit breaking circuit is executed, so that the control valve 600 is in the closed state. When the air conditioning system simultaneously satisfies the heating mode, the compressor 300 is started from the stop state, the outdoor environment temperature is less than the preset time value, and the start time of the compressor 300 is less than the preset time value, the execution circuit is turned on, and the control valve 600 is opened. When the low-temperature heating is started, the gaseous refrigerant at the discharge side of the compressor 300 is bypassed to the intake side (low-pressure side) of the compressor 300, so that the evaporation pressure is increased, and the reliability of the system is improved.
The air conditioning system is provided with the bypass pipeline 500 between the refrigerant outlet and the refrigerant inlet of the compressor 300, and the bypass pipeline 500 is provided with the control valve 600 and the throttling device 700, so that the control valve 600 can control the on-off of the bypass pipeline 500, and the throttling device 700 can control the flow and the flow velocity of the refrigerant passing through the bypass pipeline 500, so that the bypass pipeline 500 can bypass the gaseous refrigerant at the exhaust side of the compressor 300 to the air inlet side (low pressure side) of the compressor 300 when the compressor is started for heating at a low temperature, thereby improving the evaporation pressure, reducing the compression ratio of the system, and further improving the reliability of the system. And compared with the liquid refrigerant in the heating evaporation compressor 300 using the electric heating belt, the power consumption can be reduced, and the requirement of excessive liquid refrigerant can be met.
Specifically, referring to fig. 2 and 4, the control valve 600 includes an electromagnetic valve, the bypass line 500 includes a bypass pipe 510, and the bypass pipe 510 is sequentially connected to a refrigerant outlet of the compressor 300, the control valve 600, the throttling device 700, and a refrigerant inlet of the compressor 300. The bypass pipe 510 is sequentially connected to the refrigerant outlet of the compressor 300, the control valve 600, the throttle device 700, and the refrigerant inlet of the compressor 300, and thus the refrigerant flows out of the refrigerant outlet of the compressor 300, sequentially passes through the control valve 600 and the throttle device 700, and then returns to the refrigerant inlet of the compressor 300. Therefore, the control valve 600 can control the on-off of the refrigerant on the bypass pipeline 500 firstly, and then the throttling device 700 is used for throttling, so that the arrangement of the control valve 600 and the throttling device 700 is more reasonable, the use times of the throttling device 700 can be reduced, and the service life of the throttling device 700 is prolonged. In other embodiments, the bypass pipe 510 may further sequentially connect the refrigerant outlet of the compressor 300, the throttle device 700, the control valve 600, and the refrigerant inlet of the compressor 300.
In other embodiments, the throttling device 700 may further include a capillary tube and an electronic expansion valve, the bypass line 500 includes a first bypass pipe and a second bypass pipe, the first bypass pipe is sequentially connected to the refrigerant outlet of the compressor 300, the control valve 600, the capillary tube/electronic expansion valve and the refrigerant inlet of the compressor 300, the second bypass pipe is connected in parallel with the capillary tube/electronic expansion valve, and the electronic expansion valve/capillary tube is connected in series to the second bypass pipe. So, make the refrigerant through the solenoid valve can pass through the first bypass pipe that is equipped with the capillary and the second bypass pipe that is equipped with electronic expansion valve simultaneously, make bypass pipeline 500 can satisfy more user demands.
In an embodiment, referring to fig. 1 and 5, the refrigerant outlet of the compressor 300 is provided with a discharge pipe 310, the air conditioning system further includes an oil separator 800, an inlet of the oil separator 800 is connected to the discharge pipe 310, and an outlet of the oil separator 800 is connected to the bypass pipeline 500.
In the present embodiment, the oil separator 800 can separate the lubricating oil in the high-pressure steam discharged from the refrigeration compressor 300 to ensure safe and efficient operation of the apparatus. And places the bypass line 500 in communication with the outlet of the oil separator 800. The bypass line 500 is communicated with the refrigerant outlet of the compressor 300 through the oil separator 800 and the discharge pipe 310. The bypass line 500 not only can bypass a part of the exhaust gas to the low pressure side, thereby reducing the compression ratio of the system, but also can return the oil while bypassing the refrigerant, thereby further improving the reliability of the system.
In another embodiment, the refrigerant inlet of the compressor 300 is provided with a suction pipe 320, the air conditioning system further includes a gas-liquid separator 900, an air outlet of the gas-liquid separator 900 is connected to the suction pipe 320, and an air inlet of the gas-liquid separator 900 is connected to the bypass pipe 500.
In the present embodiment, the bypass line 500 communicates with the outlet of the gas-liquid separator 900, so that the bypass line 500 communicates with the refrigerant inlet of the compressor 300 through the gas-liquid separator 900 and the suction pipe 320. The high-temperature and high-pressure gas flowing out of the refrigerant outlet of the compressor 300 can be converted into low-temperature and low-pressure gas to flow back to the refrigerant inlet of the compressor 300, thereby further improving the reliability and stability of the system. In other embodiments, one end of the bypass line 500 may be connected to the outlet of the oil separator 800, and the other end may be connected to the air inlet of the gas-liquid separator 900. The stability and reliability of the system can be improved while oil return is realized.
On the basis of the above embodiments, further, as shown in fig. 1 to 5, the air conditioning system further includes a four-way valve 110, a first end of the four-way valve 110 is communicated with an outlet of the oil separator 800, a second end of the four-way valve 110 is communicated with an air inlet of the gas-liquid separator 900, a third end of the four-way valve 110 is communicated with the outdoor unit 100, and a fourth end of the four-way valve 110 is communicated with the indoor unit 200; one end of bypass line 500 near gas-liquid separator 900 is connected to a line between the second end of four-way valve 110 and the air inlet of gas-liquid separator 900.
When the air conditioning system is started at low temperature, a high-temperature and high-pressure gas discharged from a refrigerant outlet of the compressor 300 passes through the oil separator 800, a part of the high-temperature and high-pressure gas returns to a suction inlet of the compressor 300 through the bypass line 500, the other part of the high-temperature and high-pressure gas enters the indoor unit 200 through the four-way valve 110 to exchange heat, the refrigerant continues to enter the outdoor unit 100 after passing through the throttle valve, and finally returns to the gas-liquid separator 900 through the four-way valve 110 to flow to the suction inlet. By connecting one end of the bypass line 500 close to the gas-liquid separator 900 to the line between the second end of the four-way valve 110 and the air inlet of the gas-liquid separator 900, the bypass line 500 and the air return line are merged and then flow to the air inlet of the gas-liquid separator 900, which simplifies the line.
In an embodiment, referring to fig. 4 and 5, the number of the indoor units 200 is multiple, and the multiple indoor units 200 are connected to the outdoor unit 100 in parallel. The indoor units 200 may all be indoor heat exchangers, and may also include a water temperature adjusting module, which may include a hydraulic module and/or a water tank module. The hydraulic module comprises a water side heat exchanger, a refrigerant pipe group and a water flow pipeline. The water tank module comprises a water tank and a refrigerant pipe group wound on the outer wall surface of the water tank or arranged in the water tank. Therefore, one outdoor unit can be matched with a plurality of indoor heat exchangers and the water temperature adjusting modules at the same time, and the working efficiency of the outdoor unit is improved.
In one embodiment, throttling device 700 includes a capillary tube having a tube inside diameter greater than or equal to 1.1mm and less than or equal to 3 mm. Preferably, the capillary has a tube internal diameter greater than or equal to 2.1mm and less than or equal to 2.4 mm.
In the present embodiment, the capillary may have a tube inner diameter of 1.1mm, 1.4mm, 1.6mm, 1.8mm, 2.0mm, 2.1mm, 2.2mm, 2.4mm, 2.5mm, 2.6mm, 2.8mm, or 3.0 mm. If the inner diameter of the capillary tube is smaller than 1.1mm, the inner diameter of the capillary tube is too small, the flow rate of the refrigerant in the bypass pipeline 500 is small, and the refrigerant which bypasses from the exhaust port of the compressor 300 to the suction port of the compressor 300 is less, so that the problem that too much liquid refrigerant is needed during low-temperature heating starting is not solved sufficiently. When the inner diameter of the capillary tube is greater than 3mm, the inner diameter of the bypass tube 510 is too large, which affects the flow rate of the refrigerant in the conventional flow path, and thus affects the operation energy efficiency of the indoor unit 200 and the outdoor unit 100. By making the inner diameter of the capillary tube greater than or equal to 1.1mm and less than or equal to 3mm, the refrigerant flow that can pass through the bypass line 500 is made larger on the premise that the refrigerant flow entering the indoor unit 200 and the outdoor unit 100 is not affected, so that the effect of the bypass refrigerant is better, and the reliability of the system is improved. The inner diameter of the capillary tube is larger than or equal to 2.1mm and smaller than or equal to 2.4mm, so that the inner diameter of the capillary tube is larger than that of the oil return tube, and the bypass effect is better while the working energy efficiency of the indoor unit 200 and the outdoor unit 100 is ensured.
The above is only the preferred embodiment of the present invention, and the patent scope of the present invention is not limited thereby, all the equivalent structure changes made by the contents of the specification and the drawings are utilized under the inventive concept of the present invention, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.
Claims (10)
1. An air conditioning system comprises an outdoor unit, an indoor unit, a compressor and a refrigerant circulation loop, wherein a refrigerant outlet of the compressor, a refrigerant inlet of the outdoor unit, a refrigerant inlet of the indoor unit and a refrigerant inlet of the compressor are sequentially communicated through the refrigerant circulation loop.
2. The air conditioning system as claimed in claim 1, wherein a discharge pipe is provided at a refrigerant outlet of the compressor, the air conditioning system further comprising an oil separator, an inlet of the oil separator is connected to the discharge pipe, and an outlet of the oil separator is connected to the bypass line.
3. The air conditioning system as claimed in claim 2, wherein a suction pipe is provided at a refrigerant inlet of the compressor, the air conditioning system further comprises a gas-liquid separator, an air outlet of the gas-liquid separator is connected to the suction pipe, and an air inlet of the gas-liquid separator is connected to the bypass pipe.
4. The air conditioning system as claimed in claim 1, wherein the throttling means comprises an electronic expansion valve and/or a capillary tube.
5. The air conditioning system as claimed in claim 4, wherein the control valve comprises a solenoid valve, and the bypass line comprises a bypass pipe, and the bypass pipe is sequentially connected to the refrigerant outlet of the compressor, the control valve, the throttling device, and the refrigerant inlet of the compressor.
6. The air conditioning system as claimed in claim 3, further comprising a four-way valve, a first end of which communicates with an outlet of the oil separator, a second end of which communicates with an air inlet of the gas-liquid separator, a third end of which communicates with the outdoor unit, and a fourth end of which communicates with the indoor unit;
one end of the bypass pipeline close to the gas-liquid separator is connected to a pipeline between the second end of the four-way valve and the gas inlet of the gas-liquid separator.
7. The air conditioning system as claimed in claim 1, wherein said indoor unit is plural, and a plurality of said indoor units are connected in parallel to said outdoor unit.
8. The air conditioning system of claim 1, wherein the throttling device comprises a capillary tube having a tube inside diameter greater than or equal to 1.1mm and less than or equal to 3 mm.
9. The air conditioning system of claim 8, wherein the capillary tube has a tube inner diameter greater than or equal to 2.1mm and less than or equal to 2.4 mm.
10. The air conditioning system of claim 1, further comprising:
the acquisition circuit is used for acquiring outdoor environment temperature;
the comparison circuit is used for comparing the outdoor environment temperature when the compressor is started with a preset outdoor environment temperature value;
the timing circuit is used for calculating the starting time of the compressor and comparing the starting time with a preset time value;
the execution circuit is used for opening the control valve when the outdoor environment temperature is lower than a preset outdoor temperature value when the compressor is started and the starting time of the compressor is lower than a preset time value;
and when the starting time of the compressor is greater than a preset time value, closing the control valve.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921830349.2U CN210832643U (en) | 2019-10-28 | 2019-10-28 | Air conditioning system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921830349.2U CN210832643U (en) | 2019-10-28 | 2019-10-28 | Air conditioning system |
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| CN210832643U true CN210832643U (en) | 2020-06-23 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111207502A (en) * | 2020-01-17 | 2020-05-29 | 广东美的暖通设备有限公司 | Operation control method, operation control device, air conditioning system, and storage medium |
| CN113513797A (en) * | 2021-07-13 | 2021-10-19 | 南京天加环境科技有限公司 | Air conditioning system capable of detecting liquid level of refrigerant |
| CN114322241A (en) * | 2020-09-30 | 2022-04-12 | 广东美的精密模具科技有限公司 | Air conditioner, control method thereof, air conditioner control device and readable storage medium |
| CN115218462A (en) * | 2022-07-27 | 2022-10-21 | 青岛海尔空调电子有限公司 | Air conditioning system, control method and device thereof, and storage medium |
-
2019
- 2019-10-28 CN CN201921830349.2U patent/CN210832643U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111207502A (en) * | 2020-01-17 | 2020-05-29 | 广东美的暖通设备有限公司 | Operation control method, operation control device, air conditioning system, and storage medium |
| CN111207502B (en) * | 2020-01-17 | 2021-06-15 | 广东美的暖通设备有限公司 | Operation control method, operation control device, air conditioning system, and storage medium |
| CN114322241A (en) * | 2020-09-30 | 2022-04-12 | 广东美的精密模具科技有限公司 | Air conditioner, control method thereof, air conditioner control device and readable storage medium |
| CN114322241B (en) * | 2020-09-30 | 2023-03-31 | 广东美的精密模具科技有限公司 | Air conditioner, control method thereof, air conditioner control device and readable storage medium |
| CN113513797A (en) * | 2021-07-13 | 2021-10-19 | 南京天加环境科技有限公司 | Air conditioning system capable of detecting liquid level of refrigerant |
| CN115218462A (en) * | 2022-07-27 | 2022-10-21 | 青岛海尔空调电子有限公司 | Air conditioning system, control method and device thereof, and storage medium |
| CN115218462B (en) * | 2022-07-27 | 2024-03-22 | 青岛海尔空调电子有限公司 | Air conditioning system, control method and device thereof, and storage medium |
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