CN103791587B - Judge the method whether the heat detector resistance of the combined air conditioners of heating mode offsets - Google Patents
Judge the method whether the heat detector resistance of the combined air conditioners of heating mode offsets Download PDFInfo
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- CN103791587B CN103791587B CN201410027213.3A CN201410027213A CN103791587B CN 103791587 B CN103791587 B CN 103791587B CN 201410027213 A CN201410027213 A CN 201410027213A CN 103791587 B CN103791587 B CN 103791587B
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Abstract
The invention discloses the method whether the heat detector resistance of a kind of combined air conditioners judging heating mode offsets, the steps include: to run under a, heating mode；B, the force value of measurement compressor (1) air entry, and converse saturation temperature pdt that this force value is corresponding, measure the temperature value Tem in the middle part of the temperature value Ts of coil outlets of off-premises station, coil pipe and coil inlet temperature value Tdef；C, judge whether to meet following two condition: 1, Ts >=Tem >=Tdef simultaneously；2,0 ＜ Tem pdt≤5；If meet above-mentioned two condition simultaneously, then judging that the resistance of three temperature inductors of off-premises station all offsets, if there being any one condition to be unsatisfactory for, then judging that the resistance of the temperature inductor of off-premises station offsets.The method can make detection process simple, quickly, accurately, directly, efficiently.
Description
Technical field
The present invention relates to VRF Air Conditioning System (abbreviation combined air conditioners), be especially a kind of judge under heating mode run
The method whether resistance of the temperature inductor (heat detector) of VRF Air Conditioning System offsets.
Background technology
The VRF Air Conditioning System of prior art includes an off-premises station, multiple indoor set and connects each indoor set and outdoor
Two coolant circulation house stewards of machine, multiple indoor sets are in parallel, and the indoor set after parallel connection is by two coolant circulation house stewards and room
Outer machine connects.
Each off-premises station includes that compressor, oil eliminator, four-way change-over valve, outdoor heat exchanger are (for evaporation during heating mode
Device), outer organic electronic expansion valve and gas-liquid separator.Compressor outlet connects with one end of oil eliminator, oil eliminator another
One end connects with the first valve port of four-way change-over valve, in the 3rd valve port of four-way change-over valve and two coolant circulation house stewards
The circulation house steward's connection of root coolant, another root coolant circulation house steward in two coolant circulation house stewards and outer organic electronic expansion valve
One end connect, the outer other end of organic electronic expansion valve connects with one end of outdoor heat exchanger, the other end of outdoor heat exchanger and
Second valve port connection of four-way change-over valve, the 4th valve port of four-way change-over valve is connected with one end of gas-liquid separator, and gas-liquid is divided
The other end from device connects with suction port of compressor.
Each indoor set includes interior organic electronic expansion valve and indoor heat exchanger (being condenser during heating mode), indoor heat exchanger
One end connect with one end of interior organic electronic expansion valve, the other end of interior organic electronic expansion valve and two root coolant circulation house stewards
In a connection, another root coolant circulation house steward in the other end of indoor heat exchanger and two root coolant circulation house stewards is even
Logical.
During heating mode, the first valve port of four-way change-over valve and the connection of the 3rd valve port, the second valve port and the connection of the 4th valve port,
I.e. coolant is along compressor, indoor heat exchanger, interior organic electronic expansion valve, outer organic electronic expansion valve, outdoor heat exchanger, pressure
This route of contracting machine circulates.The entrance of the compressor of off-premises station is provided with pressure transducer, outdoor coil pipe used outlet, middle part,
Entrance is respectively equipped with the first temperature sensor, the second temperature sensor and three-temperature sensor.Three above-mentioned temperature pass
Sensor and a pressure transducer all electrically connect with the master controller of air-conditioning.
Being provided with resistance in three above-mentioned temperature inductors, once there is change in the resistance of resistance, offsets, will lead
Cause measurement result is inaccurate, and the master controller of unit regulates and controls unit according to the measurement result of mistake again, will certainly occur one
The fault of series.And although temperature inductor all passes through detection and ensures that resistance is accurate when dispatching from the factory, but after unit longtime running,
By climatic effect, as excessive in day and night temperature, humidity is excessive, and resistance all can be made to produce skew.And in prior art
Lacking the method whether resistance of special detection heat detector offsets, the reason of other fault can only be investigated by technical staff one by one,
The last reason that just can determine that fault is resistance skew, and coil pipe as not enough in the rotation speed of fan of outer machine, interior machine, heat exchanger blocks up
Plug, heat exchanger coils show to be stained with ash and make to change the valve body such as shortage of heat, interior organic electronic expansion valve whether blocking etc..Skill every time
Art personnel take a substantial amount of time and investigate one by one, the most finally determine that failure cause is the skew of temperature inductor resistance,
Loaded down with trivial details laborious, the inefficiency of detection process.
Summary of the invention
The technical problem to be solved in the present invention be to provide one can make detection process simple, quickly, accurately, directly,
The method whether the heat detector resistance of the efficient combined air conditioners judging heating mode offsets.
The heat detector resistance that the technical solution of the present invention is to provide a kind of combined air conditioners judging heating mode is the most inclined
The method moved, it specifically comprises the following steps that
A, in a heating mode, start runs the compressor of off-premises station；
B, measure the force value of compressor air suction mouth of off-premises station with pressure transducer, and converse corresponding full of this force value
With temperature pdt, with the temperature value Ts of the coil outlets of first this off-premises station of temperature sensor measurement, use the second temperature sensor
Measure the temperature value Tem in the middle part of the coil pipe of off-premises station, measure the coil inlet temperature value of off-premises station with three-temperature sensor
Tdef；
C, judge whether to meet following two condition: 1, Ts >=Tem >=Tdef simultaneously；2,0 ＜ Tem-pdt≤5；If
Meet above-mentioned two condition simultaneously, then judge that the resistance of three temperature inductors of off-premises station all offsets, if had
Any one condition is unsatisfactory for, then judge that the resistance of the temperature inductor of off-premises station offsets.
Using above method, the present invention judges that method that whether the heat detector resistance of the combined air conditioners of heating mode offset is with existing
There is technology to compare, have the advantage that
With it, can directly judge whether the resistance of the temperature sensor of off-premises station offsets, detection process convenience,
Quickly, directly, accurately, efficiently.
Accompanying drawing explanation
Fig. 1 is the systematic schematic diagram that the present invention judges the method whether the heat detector resistance of the combined air conditioners of heating mode offset.
Shown in figure 1, compressor, 2, three-temperature sensor, 3, pressure transducer, the 4, first temperature sensor,
5, the second temperature sensor.
Detailed description of the invention
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
As it is shown in figure 1, the present invention judges the method whether the heat detector resistance of the combined air conditioners of heating mode offsets, it is concrete
Step is as follows.
A, in a heating mode, start runs the compressor 1 of off-premises station.
B, measure the force value of compressor 1 air entry of off-premises station with pressure transducer 3, and it is corresponding to converse this force value
Saturation temperature pdt, measure the temperature value Ts of the coil outlets of this off-premises station with the first temperature sensor 4, use the second temperature
The temperature value Tem in the middle part of the coil pipe of off-premises station measured by sensor 5, measures the coil pipe of off-premises station with three-temperature sensor 2
Inlet temperature Tdef.
C, judge whether to meet following two condition: 1, Ts >=Tem >=Tdef simultaneously；2,0 ＜ Tem-pdt≤5；If
Meet above-mentioned two condition simultaneously, then judge that the resistance of three temperature inductors of off-premises station all offsets, if had
Any one condition is unsatisfactory for, then judge that the resistance of the temperature inductor of off-premises station offsets.If it is determined that off-premises station
Temperature inductor resistance offsets, then replace three temperature inductors of off-premises station.
Claims (1)
1. the method that whether the heat detector resistance of the combined air conditioners judging heating mode offsets, it is characterised in that: its tool
Body step is as follows:
A, in a heating mode, start runs the compressor (1) of off-premises station；
B, use pressure transducer (3) measure the force value of compressor (1) air entry of off-premises station, and converse this pressure
Saturation temperature pdt that value is corresponding, measures the temperature value Ts of the coil outlets of this off-premises station with the first temperature sensor (4),
The temperature value Tem in the middle part of the coil pipe of off-premises station is measured, with three-temperature sensor (2) with the second temperature sensor (5)
Measure the coil inlet temperature value Tdef of off-premises station；
C, judge whether to meet following two condition: 1, Ts >=Tem >=Tdef simultaneously；2,0 ＜ Tem-pdt≤5；If
Meet above-mentioned two condition simultaneously, then judge that the resistance of three temperature inductors of off-premises station all offsets, if had
Any one condition is unsatisfactory for, then judge that the resistance of the temperature inductor of off-premises station offsets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410027213.3A CN103791587B (en) | 2014-01-21 | 2014-01-21 | Judge the method whether the heat detector resistance of the combined air conditioners of heating mode offsets |
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| CN201410027213.3A CN103791587B (en) | 2014-01-21 | 2014-01-21 | Judge the method whether the heat detector resistance of the combined air conditioners of heating mode offsets |
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| CN103791587A CN103791587A (en) | 2014-05-14 |
| CN103791587B true CN103791587B (en) | 2016-08-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546736A (en) * | 2015-12-23 | 2016-05-04 | 宁波奥克斯电气股份有限公司 | Method for solving accumulated liquid of indoor heat exchanger of multi-split air conditioner during heating |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105526676B (en) * | 2015-12-23 | 2018-07-27 | 宁波奥克斯电气股份有限公司 | Judge heating when multi-connected machine indoor heat exchanger whether the method for hydrops |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05196275A (en) * | 1992-01-22 | 1993-08-06 | Matsushita Electric Ind Co Ltd | Abnormal state judgement device for air conditioner |
| JPH0727453A (en) * | 1993-07-16 | 1995-01-27 | Toshiba Ave Corp | Air conditioner |
| JPH08313125A (en) * | 1995-05-23 | 1996-11-29 | Sanyo Electric Co Ltd | Abnormally detecting method of pressure sensor and temperature sensor in refrigerating device |
| CN1227335A (en) * | 1998-02-20 | 1999-09-01 | 东芝株式会社 | Multi-room type air conditioner |
| CN101283243A (en) * | 2005-08-03 | 2008-10-08 | 开利公司 | System and method for detecting sensor fault in refrigeration system |
| CN101504179A (en) * | 2009-02-27 | 2009-08-12 | 海信（山东）空调有限公司 | Substitution control method for air conditioner fault sensor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5287653B2 (en) * | 2009-10-20 | 2013-09-11 | 三菱電機株式会社 | Air conditioner |
-
2014
- 2014-01-21 CN CN201410027213.3A patent/CN103791587B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05196275A (en) * | 1992-01-22 | 1993-08-06 | Matsushita Electric Ind Co Ltd | Abnormal state judgement device for air conditioner |
| JPH0727453A (en) * | 1993-07-16 | 1995-01-27 | Toshiba Ave Corp | Air conditioner |
| JPH08313125A (en) * | 1995-05-23 | 1996-11-29 | Sanyo Electric Co Ltd | Abnormally detecting method of pressure sensor and temperature sensor in refrigerating device |
| CN1227335A (en) * | 1998-02-20 | 1999-09-01 | 东芝株式会社 | Multi-room type air conditioner |
| CN101283243A (en) * | 2005-08-03 | 2008-10-08 | 开利公司 | System and method for detecting sensor fault in refrigeration system |
| CN101504179A (en) * | 2009-02-27 | 2009-08-12 | 海信（山东）空调有限公司 | Substitution control method for air conditioner fault sensor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546736A (en) * | 2015-12-23 | 2016-05-04 | 宁波奥克斯电气股份有限公司 | Method for solving accumulated liquid of indoor heat exchanger of multi-split air conditioner during heating |
| CN105546736B (en) * | 2015-12-23 | 2018-07-06 | 宁波奥克斯电气股份有限公司 | The method for solving the indoor heat exchanger hydrops of multi-connected machine during heating |
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| CN103791587A (en) | 2014-05-14 |
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Address after: 315191 Zhejiang city of Ningbo province Jiangshan town Yinzhou District Mingguang Road No. 1166 Applicant after: NINGBO AUX ELECTRIC CO., LTD. Address before: 315191 Zhejiang city of Ningbo province Jiangshan town Yinzhou District Mingguang Road No. 1166 Applicant before: Ningbo AUX Electric Co., Ltd. |
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