CN109506317B - compressor exhaust fault detection method, compressor and air conditioner - Google Patents
compressor exhaust fault detection method, compressor and air conditioner Download PDFInfo
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- CN109506317B CN109506317B CN201811326492.8A CN201811326492A CN109506317B CN 109506317 B CN109506317 B CN 109506317B CN 201811326492 A CN201811326492 A CN 201811326492A CN 109506317 B CN109506317 B CN 109506317B
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- compressor
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- fault detection
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Classifications
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/38—Failure diagnosis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention discloses an compressor exhaust fault detection method, a compressor using the method and an air conditioner.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an compressor exhaust fault detection method, a compressor using the method and an air conditioner.
Background
The normal operation of a compressor in an air conditioning unit meets the guarantee of the refrigeration or heating effect of an air conditioner, the exhaust temperature of the compressor is over high or over low, and the compressor is affected by the open-circuit fault when the exhaust temperature is low and the short-circuit fault when the exhaust temperature is high, so an exhaust temperature sensing bulb is arranged at the exhaust end of the compressor to monitor the exhaust temperature.
Therefore, the technical problem to be solved urgently in the industry is to improve the detection method of the exhaust temperature sensing bulb and reduce the frequent start and stop of the compressor caused by misjudgment.
Disclosure of Invention
Aiming at solving the problem of the detection method of the compressor exhaust temperature sensing bulb in the prior art and reducing the error judgment
The invention provides compressor exhaust fault detection methods, a compressor using the methods and an air conditioner.
The invention provides an compressor exhaust fault detection method, which comprises the following steps:
after the compressor is started up according to the starting condition, the shielding temperature sensing bulb detects the open-circuit fault of the exhaust temperature within a set time;
when the compressor is in a shutdown state, the shielding temperature sensing bulb detects the open-circuit fault and the short-circuit fault of the exhaust temperature.
In , the method for detecting a compressor discharge fault includes:
step 1, when a starting condition of a unit is met, starting the operation of a compressor;
step 2, judging whether the starting time of the compressor is less than the set time T, if so, shielding the open-circuit fault detection of the temperature sensing bulb on the exhaust temperature; if not, starting the open-circuit fault detection of the temperature sensing bulb on the exhaust temperature;
and 3, when the exhaust temperature of the compressor is lower than the set value and continues for a time t1, displaying the fault name, and turning off the compressor and the load.
The method for detecting the exhaust fault of the compressor further comprises the steps that when the starting time of the compressor is more than or equal to the set time T, the temperature sensing bulb detects the exhaust temperature and also comprises short-circuit fault detection, and when the exhaust temperature of the compressor is higher than the set value and continues for periods of time T1, the short-circuit fault is displayed, and the compressor and a load are shut down.
Preferably, the set time T is 2 minutes.
Preferably, the time t1 is 5 seconds.
The invention also includes compressors that use the compressor discharge fault detection method described above.
The invention also comprises air conditioners, and the compressor of the air conditioner uses the compressor exhaust fault detection method.
Compared with the prior art, the invention has the following beneficial effects:
the detection of the exhaust temperature of the compressor is corrected, so that the judgment of a control system is more accurate and reasonable, the failure rate is reduced, the physical damage of the load caused by the start and stop of the load due to the failure of the exhaust temperature sensing bulb is effectively reduced, the service life of the load is prolonged, the overall performance of the unit is improved, and the service life of the unit is prolonged.
Drawings
FIG. 1 is a flow chart of the compressor discharge fault determination of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and examples. It should be understood that the following specific examples are only for illustrating the present invention and are not to be construed as limiting the present invention.
In order to solve the technical problem, the method provided by the invention shields the exhaust temperature sensing bulb to perform open circuit detection (the short circuit detection is carried out directly at and is not influenced by the time T) within the starting time T of the compressor, and utilizes the temperature sensing bulb to perform open circuit fault detection on the exhaust temperature of the compressor after the starting time T of the compressor.
FIG. 1 is a flow chart of an embodiment of the present invention the compressor discharge fault detection method specifically includes the steps of:
step 1, when a starting condition of a unit is met, starting the operation of a compressor;
step 2, when the starting time of the compressor is less than the set time T, shielding the open-circuit fault detection of the temperature sensing bulb on the exhaust temperature; when the starting time of the compressor is more than or equal to the set time T, starting the temperature sensing bulb to detect the exhaust temperature;
and 3, when the exhaust temperature of the compressor is lower than the set value and is detected to be lower than the set value continuously for time t1, displaying an open-circuit fault and closing all loads except the water pump.
In the method for detecting the exhaust fault of the compressor, when the starting time of the compressor is more than or equal to the set time T, the detection of the temperature sensing bulb on the exhaust temperature also comprises short-circuit fault detection, and when the exhaust temperature of the compressor is higher than the set value and is continuously time T1, the short-circuit fault is displayed, and the compressor and the load are shut down.
And after the fault of the compressor is eliminated, automatically recovering the operation of the compressor and detecting the exhaust temperature.
In the above embodiment, the time T for detecting the opening of the exhaust shielding temperature sensing pack after the compressor is started is 2 minutes.
The duration t1 of the open fault or short fault of the exhaust bulb is 5 seconds.
When the compressor shutdown operation is started by the unit, the exhaust temperature detected by the temperature sensing bulb in the shutdown state is possibly too low, the controller triggers the temperature too low protection, and an open-circuit fault is reported; or the exhaust temperature detected by the temperature sensing bulb is too high, the controller triggers the temperature too high protection and reports the short circuit fault, but the two conditions do not belong to the fault and belong to the normal condition in the running process of the unit, so that the detection of the exhaust temperature by the temperature sensing bulb is shielded under the closing state of the compressor.
According to the compressor exhaust fault detection method provided by the invention, after a unit meets the starting condition, the open-circuit fault detection of an exhaust temperature sensing bulb is shielded within T time after the compressor is started; the detection method can avoid the fault of triggering the exhaust temperature sensing bulb when the unit normally operates, reduce the fault rate, reduce unnecessary starting and stopping of related loads caused by the fault, further reduce the physical damage of the loads, improve the performance of the unit and prolong the service life of the unit.
The foregoing is considered as illustrative only of the embodiments of the invention. It should be understood that any modifications, equivalents and changes made within the spirit and framework of the inventive concept are intended to be included within the scope of the present invention.
Claims (6)
1, compressor exhaust fault detection methods, comprising:
step 1, when a starting condition of a unit is met, starting the operation of a compressor;
step 2, judging whether the starting time of the compressor is less than the set time T, if so, shielding the open-circuit fault detection of the temperature sensing bulb on the exhaust temperature; if not, starting the open-circuit fault detection of the temperature sensing bulb on the exhaust temperature;
and 3, when the exhaust temperature of the compressor is lower than the set value and continues for a time t1, displaying an open-circuit fault, and turning off the compressor and the load.
2. The compressor discharge fault detection method of claim 1, wherein the detection of discharge temperature by the bulb further comprises short circuit fault detection when the compressor on time is equal to or greater than the set time T, and wherein the short circuit fault is indicated and the compressor and load are shut down when the compressor discharge temperature is greater than the set value and continues for time periods T1.
3. The compressor discharge failure detection method as claimed in claim 1, wherein the set time T is 2 minutes.
4. The compressor discharge failure detection method as claimed in claim 1, wherein the time t1 is 5 seconds.
A compressor, wherein said compressor employs the method of detecting a discharge fault of said compressor as claimed in any one of claims 1 to 4 and .
An air conditioner of , wherein the compressor of the air conditioner uses the method for detecting the exhaust fault of the compressor of any of claims 1 to 4 and .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811326492.8A CN109506317B (en) | 2018-11-08 | 2018-11-08 | compressor exhaust fault detection method, compressor and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811326492.8A CN109506317B (en) | 2018-11-08 | 2018-11-08 | compressor exhaust fault detection method, compressor and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109506317A CN109506317A (en) | 2019-03-22 |
| CN109506317B true CN109506317B (en) | 2020-01-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811326492.8A Active CN109506317B (en) | 2018-11-08 | 2018-11-08 | compressor exhaust fault detection method, compressor and air conditioner |
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| CN (1) | CN109506317B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1773114A (en) * | 2004-11-11 | 2006-05-17 | 松下电器产业株式会社 | Compressor control unit and compressor control method |
| CN104166066A (en) * | 2014-06-30 | 2014-11-26 | 珠海格力电器股份有限公司 | Tone amplification erhu |
| CN104533767A (en) * | 2014-12-26 | 2015-04-22 | 沈阳鼓风机集团自动控制系统工程有限公司 | Compressor start control method |
| CN107940694A (en) * | 2017-11-16 | 2018-04-20 | 珠海格力电器股份有限公司 | The exhaust protection control method and system of a kind of air conditioner |
| CN108758970A (en) * | 2018-06-15 | 2018-11-06 | 珠海格力电器股份有限公司 | A kind of the abnormal state detection method and compressor protection method of exhaust temperature sensing package |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000073045A (en) * | 1999-05-04 | 2000-12-05 | 구자홍 | Expansion apparatus trouble sensing method for air conditioner |
| JP4173478B2 (en) * | 2004-10-25 | 2008-10-29 | 株式会社Ｎｔｔファシリティーズ | Air conditioner control system and air conditioner control method |
| JP4963052B2 (en) * | 2006-09-22 | 2012-06-27 | Ｕｄトラックス株式会社 | Exhaust temperature sensor abnormality detection device |
| CN103090504B (en) * | 2011-11-04 | 2015-07-01 | 珠海格力电器股份有限公司 | Air conditioner, and method and device for detecting air conditioner |
| CN102589218B (en) * | 2011-11-30 | 2014-08-06 | 青岛海尔空调电子有限公司 | Method for monitoring detachment of exhaust temperature sensor of air conditioning compressor |
| CN107290080B (en) * | 2017-08-08 | 2019-10-22 | 珠海格力电器股份有限公司 | A kind of temperature sensing package fault detection method and system |
-
2018
- 2018-11-08 CN CN201811326492.8A patent/CN109506317B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1773114A (en) * | 2004-11-11 | 2006-05-17 | 松下电器产业株式会社 | Compressor control unit and compressor control method |
| CN104166066A (en) * | 2014-06-30 | 2014-11-26 | 珠海格力电器股份有限公司 | Tone amplification erhu |
| CN104533767A (en) * | 2014-12-26 | 2015-04-22 | 沈阳鼓风机集团自动控制系统工程有限公司 | Compressor start control method |
| CN107940694A (en) * | 2017-11-16 | 2018-04-20 | 珠海格力电器股份有限公司 | The exhaust protection control method and system of a kind of air conditioner |
| CN108758970A (en) * | 2018-06-15 | 2018-11-06 | 珠海格力电器股份有限公司 | A kind of the abnormal state detection method and compressor protection method of exhaust temperature sensing package |
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| CN109506317A (en) | 2019-03-22 |
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