CN113790544A - Self-repairing system for four-way valve in refrigeration operation of air conditioner - Google Patents
Self-repairing system for four-way valve in refrigeration operation of air conditioner Download PDFInfo
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- CN113790544A CN113790544A CN202111007066.XA CN202111007066A CN113790544A CN 113790544 A CN113790544 A CN 113790544A CN 202111007066 A CN202111007066 A CN 202111007066A CN 113790544 A CN113790544 A CN 113790544A
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- self
- way valve
- repairing
- module
- detection module
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 29
- 238000001514 detection method Methods 0.000 claims abstract description 48
- 238000007689 inspection Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
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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
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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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
- F24F11/89—Arrangement or mounting of control or safety devices
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a self-repairing system of a four-way valve for the refrigeration operation of an air conditioner, which comprises: the system comprises a first detection module, a second detection module, a self-repairing module and an obstacle reporting module, wherein the output end of the first detection module is connected with the input end of the second detection module, the output end of the second detection module is bidirectionally connected with the self-repairing module, the first detection module is bidirectionally connected with the self-repairing module, and the output end of the self-repairing module is connected with the input end of the obstacle reporting module; the four-way valve self-repairing system for the refrigeration operation of the air conditioner identifies the fault problem of the four-way valve through the self temperature and pressure judgment of the system, and can recover the four-way valve in place through frequent impact of the power-on and power-on of the four-way valve, thereby realizing the self-inspection and self-repair of the system fault, avoiding the complaint of a user and reducing the fault complaint rate.
Description
Technical Field
The invention relates to the field of air conditioning equipment, in particular to a four-way valve self-repairing system for refrigeration operation of an air conditioner.
Background
The four-way valve of the existing air conditioner is a key part for performing cooling and heating switching operation, the problem that the four-way valve is stuck to be motionless or motionless is often caused due to various complex reasons in the using process, so that the cooling and heating effects of the air conditioner are poor or the cooling and heating effects are lost, thereby causing complaints of users and causing a large amount of fault maintenance.
Disclosure of Invention
The invention aims to provide a self-repairing system of a four-way valve for refrigerating operation of an air conditioner, which solves the problems in the background technology.
The invention is realized in this way, a self-repairing system of four-way valve for air conditioner refrigeration operation, the self-repairing system of four-way valve for air conditioner refrigeration operation includes: the system comprises a first detection module, a second detection module, a self-repairing module and an obstacle reporting module, wherein the output end of the first detection module is connected with the input end of the second detection module, the output end of the second detection module is in two-way connection with the self-repairing module, the first detection module is in two-way connection with the self-repairing module, the output end of the self-repairing module is connected with the input end of the obstacle reporting module, whether the four-way valve is switched in place or not is judged through parameter change of the system, whether the system is normal or not is judged, if the four-way valve is not switched in place, the resistance when the four-way valve is switched is reduced by reducing the pressure difference of the system, and the four-way valve is powered on and powered on to impact frequently, so that the four-way valve is automatically repaired and switched in place, and the failure rate of the four-way valve in operation of the system is reduced.
The further technical scheme of the invention is as follows: the first detection module is a temperature detection module, and when the air conditioner operates at the maximum power, whether the four-way valve is blocked or not is judged through detecting the indoor and outdoor temperature difference.
The further technical scheme of the invention is as follows: the temperature detection module detects the indoor and outdoor temperature difference during the refrigeration operation of the air conditioner, when the indoor temperature is lower than the outdoor temperature, the four-way valve is normally opened, and when the indoor temperature is higher than or equal to the outdoor temperature, the four-way valve is blocked, and then the self-repairing module operates.
The further technical scheme of the invention is as follows: the second detection module is a pressure detection module, and detects the difference value of high pressure and low pressure in the four-way valve when the four-way valve is not completely opened and the refrigeration effect is not good.
The further technical scheme of the invention is as follows: the pressure detection module detects the difference value of high pressure and low pressure in the four-way valve during the refrigeration operation of the air conditioner, and when the difference value of the high pressure and the low pressure is less than 1 MPa, the four-way valve is not completely opened, the self-repairing module operates.
The further technical scheme of the invention is as follows: the self-repairing module realizes self-repairing by controlling the power-off and power-on of the four-way valve, the four-way valve of the active system can be temporarily mechanically blocked, the four-way valve can be recovered to act under most conditions by repeatedly impacting the power-off and power-on, and manual repairing is not needed, so that the self-repairing of the system is realized.
The further technical scheme of the invention is as follows: the fault reporting module is used for controlling the four-way valve to be powered off and powered on for 50 times by the self-repairing module, and the fault reporting module runs and lights up the indicator lamp.
The invention has the beneficial effects that: the self-repairing system of the four-way valve for the refrigeration operation of the air conditioner judges whether the four-way valve is switched in place or not and whether the system is normal or not through the change of system parameters, if the four-way valve is not switched in place, the resistance in the switching process of the four-way valve is reduced by reducing the pressure difference of the system, and the four-way valve is frequently electrified and electrified to impact, so that the four-way valve is automatically repaired and switched in place, the fault rate of the four-way valve for the operation of the system is reduced, the fault problem of the four-way valve is judged and identified through the self temperature and pressure of the system, and the four-way valve can be frequently electrified and electrified to impact, so that the four-way valve is always restored in place, the self-inspection and self-repairing of the fault of the system are realized, the complaint of users are avoided, and the fault complaint rate is reduced.
Drawings
FIG. 1 is a control flow chart of a four-way valve self-repairing system for the refrigeration operation of an air conditioner provided by the invention;
fig. 2 is a system schematic diagram of a four-way valve self-repairing system for the refrigeration operation of an air conditioner provided by the invention.
Reference numerals: 1. the device comprises a four-way valve 2, an indoor heat exchanger 21, an indoor heat exchanger temperature sensor 3, an indoor heat exchanger wind wheel 4, a throttle valve 5, an outdoor heat exchanger 6, an outdoor heat exchanger wind wheel 61, an outdoor heat exchanger temperature sensor 7, a compressor 8, a mortgage pressure sensor 9, a reservoir 91, a reservoir inlet 10, a high-pressure sensor 11 and an electric control component.
Detailed Description
The first embodiment is as follows: fig. 1-2 show a self-repairing system for a four-way valve for refrigeration operation of an air conditioner, which comprises: the system comprises a first detection module, a second detection module, a self-repairing module and an obstacle-reporting module, wherein the output end of the first detection module is connected with the input end of the second detection module, the output end of the second detection module is bidirectionally connected with the self-repairing module, the first detection module is bidirectionally connected with the self-repairing module, the output end of the self-repairing module is connected with the input end of the obstacle-reporting module, whether the four-way valve is switched in place or not is judged through system parameter change, whether the system is normal or not is judged, if the four-way valve is not switched in place, the resistance of the four-way valve during switching is reduced by reducing the system pressure difference, and the four-way valve is frequently electrified and impacted, so that the four-way valve is automatically repaired and switched in place, and the failure rate of the four-way valve during system operation is reduced; the first detection module is a temperature detection module, and when the air conditioner operates at the maximum power, whether the four-way valve is blocked or not is judged through detecting the indoor and outdoor temperature difference; the temperature detection module detects the indoor and outdoor temperature difference during the refrigeration operation of the air conditioner, the four-way valve is normally opened when the indoor temperature is lower than the outdoor temperature, and the self-repairing module operates when the indoor temperature is higher than or equal to the outdoor temperature and the four-way valve is blocked; the second detection module is a pressure detection module, and detects the difference value of high pressure and low pressure in the four-way valve when the four-way valve is not completely opened and the refrigeration effect is poor; the pressure detection module detects the difference value of high pressure and low pressure in the four-way valve when the air conditioner operates in a refrigerating mode, and when the difference value of the high pressure and the low pressure is smaller than 1 MPa, the four-way valve is not completely opened, the self-repairing module operates; the self-repairing module realizes self-repairing by controlling the power failure and the power on of the four-way valve, the four-way valve of an existing system can be temporarily and mechanically locked, the four-way valve can be recovered to act under most conditions by repeated impact of the power failure and the power on, and manual repairing is not needed, so that the self-repairing of the system is realized; the fault reporting module is used for controlling the four-way valve to run and turn on an indicator lamp when the power-off and power-on times of the four-way valve are controlled by the self-repairing module to be 50 times; the self-repairing system of the four-way valve for the refrigeration operation of the air conditioner judges whether the four-way valve is switched in place or not and whether the system is normal or not through the change of system parameters, if the four-way valve is not switched in place, the resistance in the switching process of the four-way valve is reduced by reducing the pressure difference of the system, and the four-way valve is frequently electrified and electrified to impact, so that the four-way valve is automatically repaired and switched in place, the fault rate of the four-way valve for the operation of the system is reduced, the fault problem of the four-way valve is judged and identified through the self temperature and pressure of the system, and the four-way valve can be frequently electrified and electrified to impact, so that the four-way valve is always restored in place, the self-inspection and self-repairing of the fault of the system are realized, the complaint of users are avoided, and the fault complaint rate is reduced.
The working process comprises the steps that the air conditioner is started to perform refrigeration operation, the four-way valve is powered off, the compressor operates to the highest frequency, the indoor and outdoor temperature difference is detected through the temperature detection module, whether refrigeration is performed or not is judged, if the indoor temperature T1 is smaller than the outdoor temperature T2, the four-way valve is started, and if not, the self-repairing program is started; after temperature detection, the pressure detection module detects high pressure and low pressure in the four-way valve, if the pressure difference is greater than or equal to 1 MPa, the four-way valve is opened completely in place, the air conditioner normally operates, and otherwise, a self-repairing program is started; the self-repairing program is used for increasing the rotating speed of the indoor fan to the highest rotating speed and reducing the pressure of the indoor heat exchanger; increasing the outdoor fan to the highest rotating speed for increasing the pressure of the outdoor heat exchanger; then controlling the four-way valve to be powered off for 2s and then powered on, and restoring the four-way valve to act under most conditions through repeated power-on impact; when the power-on times reach 50 times, and the temperature detection or the pressure detection still cannot reach the set value, the self-repairing system is repaired when the power-on times reach 50 times, or the air conditioner is not refrigerated or the refrigeration effect is not good due to other reasons, and at the moment, the fault reporting module is started and needs to be manually repaired.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The utility model provides an air conditioner refrigeration operation cross valve is from repairing system which characterized in that: this self-repairing system of four-way valve for air conditioner refrigeration operation includes: the fault detection device comprises a first detection module, a second detection module, a self-repairing module and a fault reporting module, wherein the output end of the first detection module is connected with the input end of the second detection module, the output end of the second detection module is bidirectionally connected with the self-repairing module, the first detection module is bidirectionally connected with the self-repairing module, and the output end of the self-repairing module is connected with the input end of the fault reporting module.
2. The self-repairing system of the four-way valve for the refrigeration operation of the air conditioner as claimed in claim 1, wherein: the first detection module is a temperature detection module.
3. The self-repairing system of the four-way valve for the refrigeration operation of the air conditioner as claimed in claim 2, wherein: the temperature detection module detects the indoor and outdoor temperature difference during the refrigeration operation of the air conditioner, the four-way valve is opened when the indoor temperature is lower than the outdoor temperature, and the self-repairing module operates when the indoor temperature is higher than or equal to the outdoor temperature and the four-way valve is blocked.
4. The self-repairing system of the four-way valve for the refrigeration operation of the air conditioner as claimed in claim 3, wherein: the second detection module is a pressure detection module.
5. The self-repairing system of the four-way valve for the refrigeration operation of the air conditioner as claimed in claim 4, wherein: and the pressure detection module detects the difference value of high pressure and low pressure in the four-way valve when the air conditioner operates in a refrigerating mode.
6. The self-repairing system of the four-way valve for the refrigeration operation of the air conditioner as claimed in claim 5, wherein: the self-repairing module realizes self-repairing by controlling the power-off and power-on of the four-way valve.
7. The self-repairing system of the four-way valve for the refrigeration operation of the air conditioner as claimed in claim 6, wherein: the fault reporting module is used for controlling the four-way valve to be powered off and powered on for 50 times by the self-repairing module, and the fault reporting module runs and lights up the indicator lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111007066.XA CN113790544A (en) | 2021-08-30 | 2021-08-30 | Self-repairing system for four-way valve in refrigeration operation of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111007066.XA CN113790544A (en) | 2021-08-30 | 2021-08-30 | Self-repairing system for four-way valve in refrigeration operation of air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113790544A true CN113790544A (en) | 2021-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111007066.XA Pending CN113790544A (en) | 2021-08-30 | 2021-08-30 | Self-repairing system for four-way valve in refrigeration operation of air conditioner |
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| CN (1) | CN113790544A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388945A (en) * | 2013-07-10 | 2013-11-13 | 广东美的暖通设备有限公司 | Four-way valve control device and control method thereof |
| CN104180572A (en) * | 2013-05-28 | 2014-12-03 | 珠海格力电器股份有限公司 | Air conditioner and four-way valve starting value obtaining method and device |
| CN105928150A (en) * | 2016-05-05 | 2016-09-07 | 广东美的制冷设备有限公司 | Four-way valve fault detection method and device and air conditioner |
| EP3273188A1 (en) * | 2016-07-20 | 2018-01-24 | Mitsubishi Heavy Industries Thermal Systems, Ltd. | Control device, air conditioner, and controlling method |
| US20180328637A1 (en) * | 2016-01-20 | 2018-11-15 | Mitsubishi Electric Corporation | Refrigeration cycle apparatus |
| CN113137704A (en) * | 2021-03-12 | 2021-07-20 | 青岛海尔空调电子有限公司 | Heat pump air conditioning unit and method for repairing abnormal heating reversing of four-way valve of heat pump air conditioning unit |
-
2021
- 2021-08-30 CN CN202111007066.XA patent/CN113790544A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104180572A (en) * | 2013-05-28 | 2014-12-03 | 珠海格力电器股份有限公司 | Air conditioner and four-way valve starting value obtaining method and device |
| CN103388945A (en) * | 2013-07-10 | 2013-11-13 | 广东美的暖通设备有限公司 | Four-way valve control device and control method thereof |
| US20180328637A1 (en) * | 2016-01-20 | 2018-11-15 | Mitsubishi Electric Corporation | Refrigeration cycle apparatus |
| CN105928150A (en) * | 2016-05-05 | 2016-09-07 | 广东美的制冷设备有限公司 | Four-way valve fault detection method and device and air conditioner |
| EP3273188A1 (en) * | 2016-07-20 | 2018-01-24 | Mitsubishi Heavy Industries Thermal Systems, Ltd. | Control device, air conditioner, and controlling method |
| CN113137704A (en) * | 2021-03-12 | 2021-07-20 | 青岛海尔空调电子有限公司 | Heat pump air conditioning unit and method for repairing abnormal heating reversing of four-way valve of heat pump air conditioning unit |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211214 |
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| RJ01 | Rejection of invention patent application after publication |