CN203629162U - Refrigerant-automatic-recovery type air-conditioning system - Google Patents
Refrigerant-automatic-recovery type air-conditioning system Download PDFInfo
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- CN203629162U CN203629162U CN201320437799.1U CN201320437799U CN203629162U CN 203629162 U CN203629162 U CN 203629162U CN 201320437799 U CN201320437799 U CN 201320437799U CN 203629162 U CN203629162 U CN 203629162U
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Abstract
The utility model provides a refrigerant-automatic-recovery type air-conditioning system, which comprises at least one compressor, a four-way valve, an outdoor heat exchanger, a throttle component, a refrigerant circulation loop formed through the connection of an indoor heat exchanger with a refrigerant pipeline, a control value configured to open/close a low-pressure gas pipeline connected with an indoor unit, and a pressure sensor used for detecting the low-pressure value of the system. When the refrigerant needs to be recovered by the air-conditioning system, the air-conditioning system is controlled to be run in a refrigerant automatic recovery mode. The controller of the system is configured to control the operation of the air-conditioning system, open and close the throttle component and the control valve, and send out corresponding operation instructions according to low-pressure signals detected by the pressure sensor, so that the refrigerant of the air-conditioning system is automatically recovered into an outdoor unit. In this way, the refrigerant of the air-conditioning system can be accurately recovered, and the purposes of waste reduction, cleanness and environmental protection are realized. Meanwhile, the damage to the system caused by the improper manual operation for the refrigerant recovery can be effectively avoided.
Description
Technical field
The utility model belongs to air conditioner technical field, more particularly, relates to a kind of refrigerant the automatic recovery air-conditioning system.
Background technology
In the time that air-conditioning system breaks down needs maintenance or maintenance, technical staff conventionally bleeds off the refrigerant in air-conditioning system or allows air-conditioning carry out refrigerant recovering operation according to personal experience under artificial pressure operating condition, bleed off refrigerant and both caused waste and flowed into the atmosphere generation greenhouse effects that can damage the ozone layer, social danger is very big; When artificial recovery, can cause a lot of unnecessary injuries to air-conditioning system according to operating personnel's experience difference, the air-conditioning result of use after impact maintenance.
Utility model content
The purpose of this utility model is to overcome deficiency of the prior art, a kind of refrigerant the automatic recovery air-conditioning system accurate, easy and simple to handle of controlling is provided, be intended to realize and can automatically move in the time that air-conditioning system need to reclaim refrigerant, avoid artificially reclaiming the system damage that refrigerant misoperation causes.
For achieving the above object, the technical solution adopted in the utility model is: a kind of refrigerant the automatic recovery air-conditioning system is provided, comprises the refrigerant circulation circuit that at least one compressor, at least one cross valve, at least one outdoor heat exchanger, at least one indoor heat exchanger and at least one throttle part are connected to form by refrigerant pipeline and control the controller of air-conditioning system operation; On the low pressure gas pipe pipeline being connected with described indoor heat exchanger, be also provided with a control valve, described control valve has the first port and the second port, described the first port is connected with indoor heat exchanger, is also provided with a low pressure for detection of system the feedback signal pressure sensor to described controller with the air entry of described compressor on the low pressure muffler being connected.
Particularly, described compressor, cross valve, outdoor heat exchanger, indoor heat exchanger, throttle part are one, the D mouth of pipe of described cross valve is connected with the exhaust outlet of described compressor, the S mouth of pipe connects with the low pressure muffler of air entry that is connected described compressor, the E mouth of pipe is connected with described outdoor heat exchanger with low pressure gas pipe pipeline connection, the C mouth of pipe of the second port that is connected described control valve, and described throttle part is located on the high-pressure liquid tube pipeline between described outdoor heat exchanger and described indoor heat exchanger.
Or, particularly, described compressor, outdoor heat exchanger, throttle part are one, and described cross valve is that two, the D mouth of pipe of described first cross valve are connected with the exhaust outlet of described compressor, the E mouth of pipe connects with the low pressure gas pipe pipeline of the second port that is connected described control valve, the S mouth of pipe is connected with one first one end capillaceous and described first other end capillaceous is connected with the low pressure gas pipe pipeline of the second port of described control valve, the C mouth of pipe is connected with described outdoor heat exchanger;
The D mouth of pipe of described second cross valve is connected with the exhaust outlet of described compressor, the S mouth of pipe connects with the low pressure gas pipe pipeline of the first port that is connected described control valve, the E mouth of pipe be connected each described indoor heat exchanger low pressure gas pipe pipeline connection, the C mouth of pipe is connected with one second one end capillaceous and described second other end capillaceous is connected with the low pressure gas pipe pipeline of the first port of described control valve;
The low pressure gas pipe pipeline being connected with the first port of described control valve connects with the low pressure muffler of the air entry that is connected described compressor;
Described throttle part is located on the high-pressure liquid tube pipeline between described outdoor heat exchanger and each described indoor heat exchanger.
Further, above-mentioned refrigerant the automatic recovery air-conditioning system also comprises the 3rd cross valve, second throttle part, second outdoor heat exchanger, the D mouth of pipe of described the 3rd cross valve is connected with the exhaust outlet of described compressor, the E mouth of pipe be connected described control valve the second port low pressure gas pipe pipeline connect, the S mouth of pipe is connected with one end of a three capillary and the low pressure gas pipe pipeline of the other end of described three capillary and the second port of described control valve is connected, the C mouth of pipe is connected with described second outdoor heat exchanger;
Described second throttle part is located on the high-pressure liquid tube pipeline between described outdoor heat exchanger and each described indoor heat exchanger.
Further, in above-mentioned refrigerant the automatic recovery air-conditioning system, on the low pressure muffler being connected with the air entry of described compressor, be also provided with a gas-liquid separator, and described pressure sensor is on the low pressure muffler between described gas-liquid separator and described compressor.
Alternatively, described control valve is magnetic valve or electric expansion valve.
Alternatively, described throttle part is the one in capillary, electric expansion valve, heating power expansion valve.
Further, on the described high-pressure liquid tube pipeline being connected with described indoor heat exchanger, be provided with respectively a stop valve on described low pressure gas pipe pipeline and on described high-pressure air pipe pipeline.
The beneficial effect of the refrigerant the automatic recovery air-conditioning system that the utility model provides is: compared with prior art, the utility model refrigerant the automatic recovery air-conditioning system, only need on the low pressure muffler being connected with the air entry of compressor, set up a low pressure for detection of system the feedback signal pressure sensor to controller, in the time that needs reclaim refrigerant, press refrigerant the automatic recovery key, this air-conditioning system enters refrigerant the automatic recovery pattern, the operation of the controller control air-conditioning system of system, the opening and closing and the pressure signal of the low pressure of the system that controller detects according to pressure sensor sends corresponding action command of throttle part and control valve valve, realize by the refrigerant the automatic recovery in air-conditioning system the object to off-premises station, it is simple in structure, control precisely, easy and simple to handle, with low cost, utilize the utility model refrigerant the automatic recovery air-conditioning system, both can in the time of maintenance air-conditioning system, reclaim accurately the refrigerant of this system, cut the waste, clean environment firendly, can effectively avoid again, because operating personnel's experience difference, recovery refrigerant misoperation cause damage to air-conditioning system, guaranteeing air-conditioning system result of use.
Accompanying drawing explanation
Structure and the operation logic figure of the refrigerant the automatic recovery air-conditioning system that Fig. 1 provides for the utility model embodiment mono-;
Structure and the operation logic figure of the refrigerant the automatic recovery air-conditioning system that Fig. 2 provides for the utility model embodiment bis-;
Structure and the operation logic figure of the refrigerant the automatic recovery air-conditioning system that Fig. 3 provides for the utility model embodiment tri-;
The control flow chart of the refrigerant the automatic recovery air-conditioning system that Fig. 4 provides for the utility model embodiment.
(note: because improvement of the present utility model and indoor set are irrelevant, and the connection of indoor set belongs to prior art, therefore all omitted the structure of indoor set part in each accompanying drawing)
The specific embodiment
In order to make technical problem to be solved in the utility model, technical scheme and beneficial effect clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Embodiment mono-
Refer to Fig. 1, the refrigerant the automatic recovery air-conditioning providing for the utility model embodiment mono-is.Refrigerant the automatic recovery air-conditioning system comprises mainly the refrigerant circulation circuit being connected to form by refrigerant pipeline by a compressor 1, cross valve 21, outdoor heat exchanger 31, indoor heat exchanger (not shown) and throttle part 41 and the controller (not shown) of controlling air-conditioning system operation; Specifically, the D mouth of pipe of cross valve 21 is connected with the exhaust outlet 11 of compressor 1, the C mouth of pipe is connected the S mouth of pipe and connects with the low pressure muffler 333 of the air entry 12 that is connected compressor 1 with outdoor heat exchanger 31, and throttle part 41 is located on the high-pressure liquid tube pipeline 111 between outdoor heat exchanger and indoor heat exchanger; The more important thing is, on the low pressure gas pipe pipeline 222 being connected with indoor heat exchanger, be also provided with control valve 6, this control valve 6 has the first port 61 and the second port 62, wherein, the first port 61 is connected with indoor heat exchanger, the second port 62 is connected with the E mouth of pipe of cross valve 21, simultaneously by low pressure gas pipe pipeline 222, on the low pressure muffler 333 being connected, is also provided with pressure sensor 7 with the air entry 12 of compressor 1, for detection of the low pressure of system with feedback signal to controller.
In the present embodiment, on the low pressure muffler 333 being connected with the air entry 12 of compressor 1, can also be provided with gas-liquid separator 8, and pressure sensor 7 is on the low pressure muffler 333 between gas-liquid separator 8 and compressor 1.This gas-liquid separator can prevent that liquid refrigerants from entering in compressor 1, and only allows gaseous coolant enter in compressor 1, prevents that compressor 1 from producing liquid hit phenomenon and causing the system failure.
In the present embodiment, control valve 6 is for playing the break-make of controlling the low pressure gas pipe pipeline 222 being attached thereto in refrigerant recovering process, thereby open or the circulation of blocking-up refrigerant, therefore control valve 6 can be selected the valve body with on-off function that magnetic valve or electric expansion valve or other can be automatically controlled.
In the present embodiment, throttle part 41 can be selected the one in capillary, electric expansion valve, heating power expansion valve; But to select electric expansion valve as good, because electric expansion valve can accurately be controlled the flow of refrigerant; Reaction speed is faster than heating power expansion valve, can reach in time the required open degree of defrosting, improves defrost performance, and evaporating temperature is also more stable; And can control better suction superheat, adapt to larger refrigeration scope.
In the present embodiment, on the high-pressure liquid tube pipeline 111 being connected with indoor heat exchanger, be provided with respectively stop valve 10 on low pressure gas pipe pipeline 222, can manually control like this keying spool and control passing through and cut-off of refrigerant, provide convenience for installing and overhaul air-conditioning system.
Refer to Fig. 1 and Fig. 4, the concrete control method of the existing refrigerant the automatic recovery air-conditioning system that the utility model embodiment mono-is provided describes again:
First, open air-conditioning system and make air-conditioning system enter automatic refrigerant recovering pattern;
At this moment, controller control compressor 1 is opened operation;
In refrigerant recovering mode operation, close the throttle part 41 of air-conditioning system;
In recovery refrigerant process, because throttle part 41 is closed, refrigerant in off-premises station cannot pass through 111 inflow systems of high-pressure liquid tube pipeline, in indoor set heat exchanger 51 and pipeline, refrigerant is got back to off-premises station by 222 of low pressure gas pipe pipelines, along with the refrigerant in system continues to flow into off-premises station, the low pressure P of this system reduces gradually, and the low pressure of pressure sensor 7 real-time detecting systems feedback signal are to controller; When low pressure, P is greater than 0, while being P > 0, the low pressure that is yet system is not to be less than or equal to 0, represents to still have refrigerant recyclable in air-conditioning system, control valve 6 stays open state, and air-conditioning system continues operation refrigerant the automatic recovery pattern and reclaims refrigerant;
When the low pressure P detecting is less than or equal to 0, i.e. P≤0 o'clock, representing has not had refrigerant recyclable in air-conditioning system, controller sends instruction by closed control valve 6, stop compressor 1 and turn round, the refrigerant of this air-conditioning system is all recycled to off-premises station, and system exits refrigerant the automatic recovery pattern.
Compared with prior art, the utility model provides refrigerant the automatic recovery air-conditioning system is simple in structure, it is accurate, easy and simple to handle, with low cost to control; In the time that needs reclaim refrigerant, press refrigerant the automatic recovery key, this air-conditioning system enters refrigerant the automatic recovery pattern, opening and closing and the low pressure signal of the system that controller detects according to pressure sensor 7 sends corresponding action command of operation, throttle part and control valve 6 valves of the controller control air-conditioning system of system, realizes by the refrigerant the automatic recovery in air-conditioning system the object to off-premises station; Like this, utilize the utility model refrigerant the automatic recovery air-conditioning system both can in the time of maintenance air-conditioning system, reclaim accurately the refrigerant of this system, cut the waste, clean environment firendly; Can effectively avoid again, because operating personnel's experience difference, recovery refrigerant misoperation cause damage to air-conditioning system, guaranteeing air-conditioning system result of use.
Embodiment bis-
Refer to Fig. 2, different in the structure of the refrigerant the automatic recovery air-conditioning system in the present embodiment and embodiment mono-, mainly change three control into by two control, can increase like this quantity of indoor heat exchanger, it comprises a compressor 1, outdoor heat exchanger 31, throttle part 41, first cross valve 21 and second cross valve 22; Specifically, the C mouth of pipe of first cross valve 21 is connected with outdoor heat exchanger 31, the S mouth of pipe connects with the low pressure gas pipe pipeline 222 of the second port 62 that is connected control valve 6, the E mouth of pipe is connected with one end of the first capillary 91, and the other end of the first capillary 91 connects with the low pressure gas pipe pipeline 222 of the second port 62 that is connected control valve 6, the D mouth of pipe is connected with the exhaust outlet 11 of compressor 1;
And the C mouth of pipe of second cross valve 22 is connected with one end of the second capillary 92 and the other end of the second capillary 92 connects with the low pressure gas pipe pipeline 222 of the first port 61 that is connected control valve 6, the S mouth of pipe connects with the low pressure gas pipe pipeline 222 of the first port 61 that is connected control valve 6, the E mouth of pipe connects with the low pressure gas pipe pipeline 222 that is connected indoor heat exchanger, the D mouth of pipe is connected with the exhaust outlet 11 of compressor 1;
And the low pressure gas pipe pipeline 222 being connected with the first port 61 of control valve 6 connects with the low pressure muffler 333 of the air entry 12 that is connected compressor 1; Throttle part 41 is located on the high-pressure liquid tube pipeline 111 between outdoor heat exchanger 31 and indoor heat exchanger.Identical with embodiment mono-of the structure that in the present embodiment, all the other are not described to.
Refer to again Fig. 2 and Fig. 4, the concrete control method of the refrigerant the automatic recovery air-conditioning system of now the utility model embodiment bis-being described describes, owing to mainly changing three control into by two control, in control method with embodiment mono-in the control method of the refrigerant the automatic recovery air-conditioning system that provides basically identical; Difference is only the operating path of refrigerant in system.
In the time that air-conditioning system need to reclaim refrigerant, press the refrigerant recovering key that off-premises station arranges, this air-conditioning system enters refrigerant the automatic recovery pattern, compressor 1 is opened, now, control valve 6 is opened, this air-conditioning system is moved pure refrigeration mode, and throttle part 41 is closed, first cross valve 21 power down, its C mouth of pipe is communicated with the D mouth of pipe, the S mouth of pipe is communicated with the E mouth of pipe, and second cross valve 22 powers on, and its C mouth of pipe is communicated with the S mouth of pipe, the D mouth of pipe is communicated with the E mouth of pipe, and the concrete flow direction of refrigerant refers to shown in the arrow in Fig. 2.
In recovery refrigerant process, because throttle part 41 is closed, because the refrigerant in off-premises station cannot pass through 111 inflow systems of high-pressure liquid tube pipeline, in indoor heat exchanger and pipeline, refrigerant is got back to off-premises station by 222 of low pressure gas pipe pipelines, along with the refrigerant in system continues to flow into off-premises station, the low pressure P of system reduces gradually.The low pressure of pressure sensor 7 real-time detecting systems feedback signal are to controller; When low pressure, P is greater than 0, while being P > 0, the low pressure that is yet system is not to be less than or equal to 0, represents to still have refrigerant recyclable in air-conditioning system, control valve 6 stays open state, and air-conditioning system continues operation refrigerant the automatic recovery pattern and reclaims refrigerant;
When the low pressure P detecting is less than or equal to 0, i.e. P≤0 o'clock, representing has not had refrigerant recyclable in air-conditioning system, controller sends instruction by closed control valve 6, stop compressor 1 and turn round, the refrigerant of this air-conditioning system is all recycled to off-premises station, and system exits refrigerant the automatic recovery pattern.
Embodiment tri-
Refer to Fig. 2 and Fig. 3, the present embodiment has mainly been set up outdoor heat exchanger on the basis of embodiment bis-, in detail, on the basis of embodiment bis-, to have set up the 3rd cross valve 23, second throttle part 42, second outdoor heat exchanger 32, the C mouth of pipe of the 3rd cross valve 23 is connected with second outdoor heat exchanger 32, the S mouth of pipe connects with the low pressure gas pipe pipeline 222 of the second port 62 that is connected control valve 6, the E mouth of pipe is connected with one end of three capillary 93, and the other end of three capillary 93 connects with the low pressure gas pipe pipeline 222 of the second port 62 that is connected control valve 6, the D mouth of pipe is connected with the exhaust outlet 11 of compressor 1, and second throttle part 42 is located on the pipeline between second outdoor heat exchanger 32 and indoor heat exchanger, from outdoor heat exchanger 31 refrigerant out through throttle part 41 throttlings, from outdoor heat exchanger 32 refrigerant out after throttle part 42 throttlings, both converge on high-pressure liquid tube pipeline 111.
Identical with embodiment mono-of the structure that in the present embodiment, all the other are not described to repeats no more herein.
Refer to again Fig. 3 and Fig. 4, the concrete control method of the refrigerant the automatic recovery air-conditioning system of now the utility model embodiment tri-being described describes, with regard to its essence, the control method of the refrigerant the automatic recovery air-conditioning system that the present embodiment provides is consistent with control method in embodiment mono-in control method; Difference is only the operating path of refrigerant in system.
In the time that this air-conditioning system need to reclaim refrigerant, press the refrigerant recovering key that off-premises station arranges, this air-conditioning system enters refrigerant the automatic recovery pattern, compressor 1 is opened, and now, control valve 6 is opened, this air-conditioning system is moved pure refrigeration mode, throttle part 41,42 is closed, first cross valve 21 place's power-down states, and its C mouth of pipe is communicated with the D mouth of pipe, the S mouth of pipe is communicated with the E mouth of pipe, and the 3rd cross valve 23 place's power-down states, its C mouth of pipe is communicated with the D mouth of pipe, and the S mouth of pipe is communicated with the E mouth of pipe; And second cross valve 22 be in power-up state, its C mouth of pipe is communicated with the S mouth of pipe, and the D mouth of pipe is communicated with the E mouth of pipe, and the concrete flow direction of refrigerant refers to shown in the arrow in Fig. 2.
In recovery refrigerant process, because throttle part 41,42 is closed, refrigerant in off-premises station cannot pass through 111 inflow systems of high-pressure liquid tube pipeline, in indoor heat exchanger and pipeline, refrigerant is got back to off-premises station by 222 of low pressure gas pipe pipelines, along with the refrigerant in system continues to flow into off-premises station, the low pressure P of system reduces gradually.The low pressure of pressure sensor 7 real-time detecting systems feedback signal are to controller; When low pressure, P is greater than 0, while being P > 0, the low pressure that is yet system is not to be less than or equal to 0, represents to still have refrigerant recyclable in air-conditioning system, control valve 6 stays open state, and air-conditioning system continues operation refrigerant the automatic recovery pattern and reclaims refrigerant;
When the low pressure P detecting is less than or equal to 0, i.e. P≤0 o'clock, representing has not had refrigerant recyclable in air-conditioning system, controller sends instruction by closed control valve 6, stop compressor 1 and turn round, the refrigerant of this air-conditioning system is all recycled to off-premises station, and system exits refrigerant the automatic recovery pattern.
The foregoing is only more typical embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc.; such as increasing the quantity of outdoor heat exchanger, indoor heat exchanger and air-conditioning system and the control method thereof that corresponding control assembly forms, within all should being included in protection domain of the present utility model.
Claims (8)
1. a refrigerant the automatic recovery air-conditioning system, comprises the refrigerant circulation circuit that at least one compressor, at least one cross valve, at least one outdoor heat exchanger, at least one indoor heat exchanger and at least one throttle part are connected to form by refrigerant pipeline and controls the controller of air-conditioning system operation; It is characterized in that: on the low pressure gas pipe pipeline being connected with described indoor heat exchanger, be also provided with a control valve, described control valve has the first port and the second port, described the first port is connected with indoor heat exchanger, is also provided with a low pressure for detection of system the feedback signal pressure sensor to described controller with the air entry of described compressor on the low pressure muffler being connected.
2. refrigerant the automatic recovery air-conditioning system as claimed in claim 1, it is characterized in that: described compressor, cross valve, outdoor heat exchanger, indoor heat exchanger, throttle part is one, the D mouth of pipe of described cross valve is connected with the exhaust outlet of described compressor, the S mouth of pipe connects with the low pressure muffler of the air entry that is connected described compressor, the E mouth of pipe connects with the low pressure gas pipe pipeline of the second port that is connected described control valve, the C mouth of pipe is connected with described outdoor heat exchanger, described throttle part is located on the high-pressure liquid tube pipeline between described outdoor heat exchanger and described indoor heat exchanger.
3. refrigerant the automatic recovery air-conditioning system as claimed in claim 1, it is characterized in that: described compressor, outdoor heat exchanger, throttle part are one, described cross valve is two, the D mouth of pipe of described first cross valve is connected with the exhaust outlet of described compressor, the E mouth of pipe be connected described control valve the second port low pressure gas pipe pipeline connect, the S mouth of pipe is connected with one first one end capillaceous and described first other end capillaceous is connected with the low pressure gas pipe pipeline of the second port of described control valve, the C mouth of pipe is connected with described outdoor heat exchanger;
The D mouth of pipe of described second cross valve is connected with the exhaust outlet of described compressor, the S mouth of pipe connects with the low pressure gas pipe pipeline of the first port that is connected described control valve, the E mouth of pipe be connected described outdoor heat exchanger high-pressure air pipe pipeline connection, the C mouth of pipe is connected with one second one end capillaceous and described second other end capillaceous is connected with the low pressure gas pipe pipeline of the first port of described control valve;
The low pressure gas pipe pipeline being connected with the first port of described control valve connects with the low pressure muffler of the air entry that is connected described compressor;
Described throttle part is located on the high-pressure liquid tube pipeline between described outdoor heat exchanger and each described indoor heat exchanger.
4. refrigerant the automatic recovery air-conditioning system as claimed in claim 3, it is characterized in that: also comprise the 3rd cross valve, second throttle part, second outdoor heat exchanger, the D mouth of pipe of described the 3rd cross valve is connected with the exhaust outlet of described compressor, the E mouth of pipe be connected described control valve the second port low pressure gas pipe pipeline connect, the S mouth of pipe is connected with one end of a three capillary and the low pressure gas pipe pipeline of the other end of described three capillary and the second port of described control valve is connected, the C mouth of pipe is connected with described second outdoor heat exchanger;
Described second throttle part is located on the high-pressure liquid tube pipeline between described outdoor heat exchanger and each described indoor heat exchanger.
5. the refrigerant the automatic recovery air-conditioning system as described in claim 2 to 4 any one, it is characterized in that: on the low pressure muffler being connected with the air entry of described compressor, be also provided with a gas-liquid separator, and described pressure sensor is on the low pressure muffler between described gas-liquid separator and described compressor.
6. refrigerant the automatic recovery air-conditioning system as claimed in claim 5, is characterized in that: described control valve is magnetic valve or electric expansion valve.
7. refrigerant the automatic recovery air-conditioning system as claimed in claim 5, is characterized in that: described throttle part is the one in capillary, electric expansion valve, heating power expansion valve.
8. refrigerant the automatic recovery air-conditioning system as claimed in claim 5, is characterized in that: on the described high-pressure liquid tube pipeline being connected with described indoor heat exchanger, be provided with respectively a stop valve on described low pressure gas pipe pipeline and on described high-pressure air pipe pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320437799.1U CN203629162U (en) | 2013-07-22 | 2013-07-22 | Refrigerant-automatic-recovery type air-conditioning system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320437799.1U CN203629162U (en) | 2013-07-22 | 2013-07-22 | Refrigerant-automatic-recovery type air-conditioning system |
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| CN203629162U true CN203629162U (en) | 2014-06-04 |
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| CN201320437799.1U Expired - Fee Related CN203629162U (en) | 2013-07-22 | 2013-07-22 | Refrigerant-automatic-recovery type air-conditioning system |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329836A (en) * | 2013-07-22 | 2015-02-04 | 广东美的暖通设备有限公司 | Refrigerant automatic recycling air conditioner system and control method thereof |
| CN104457054A (en) * | 2014-11-17 | 2015-03-25 | 广东美的制冷设备有限公司 | Method and device for recovering air conditioner coolants |
| CN105485771A (en) * | 2016-01-04 | 2016-04-13 | 广东美的暖通设备有限公司 | Air conditioner system and refrigerant recycling control method and device thereof |
| CN104061659B (en) * | 2014-07-10 | 2017-02-22 | 深圳麦克维尔空调有限公司 | Air conditioning system |
| CN108317726A (en) * | 2017-01-17 | 2018-07-24 | 青岛海尔新能源电器有限公司 | A kind of Teat pump boiler inhibits the method and water heater of refrigerant migration |
| CN109269134A (en) * | 2018-09-12 | 2019-01-25 | 珠海格力电器股份有限公司 | Heat-exchange system and heat-exchange system control method |
| CN111207504A (en) * | 2020-01-13 | 2020-05-29 | 珠海格力电器股份有限公司 | Air conditioning system and refrigerant recovery control method |
| WO2023284200A1 (en) * | 2021-07-15 | 2023-01-19 | 青岛海尔空调器有限总公司 | In-pipe self-cleaning control method for indoor heat exchanger |
| WO2023284195A1 (en) * | 2021-07-15 | 2023-01-19 | 青岛海尔空调器有限总公司 | In-pipe self-cleaning control method of outdoor heat exchanger |
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2013
- 2013-07-22 CN CN201320437799.1U patent/CN203629162U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329836A (en) * | 2013-07-22 | 2015-02-04 | 广东美的暖通设备有限公司 | Refrigerant automatic recycling air conditioner system and control method thereof |
| CN104061659B (en) * | 2014-07-10 | 2017-02-22 | 深圳麦克维尔空调有限公司 | Air conditioning system |
| CN104457054A (en) * | 2014-11-17 | 2015-03-25 | 广东美的制冷设备有限公司 | Method and device for recovering air conditioner coolants |
| CN105485771A (en) * | 2016-01-04 | 2016-04-13 | 广东美的暖通设备有限公司 | Air conditioner system and refrigerant recycling control method and device thereof |
| CN105485771B (en) * | 2016-01-04 | 2018-12-07 | 广东美的暖通设备有限公司 | Air-conditioning system and its refrigerant recovering control method and device |
| CN108317726A (en) * | 2017-01-17 | 2018-07-24 | 青岛海尔新能源电器有限公司 | A kind of Teat pump boiler inhibits the method and water heater of refrigerant migration |
| CN109269134A (en) * | 2018-09-12 | 2019-01-25 | 珠海格力电器股份有限公司 | Heat-exchange system and heat-exchange system control method |
| CN109269134B (en) * | 2018-09-12 | 2019-12-17 | 珠海格力电器股份有限公司 | Heat exchange system control method |
| CN111207504A (en) * | 2020-01-13 | 2020-05-29 | 珠海格力电器股份有限公司 | Air conditioning system and refrigerant recovery control method |
| WO2023284200A1 (en) * | 2021-07-15 | 2023-01-19 | 青岛海尔空调器有限总公司 | In-pipe self-cleaning control method for indoor heat exchanger |
| WO2023284195A1 (en) * | 2021-07-15 | 2023-01-19 | 青岛海尔空调器有限总公司 | In-pipe self-cleaning control method of outdoor heat exchanger |
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