CN203323917U - Device for detecting control parameters of refrigerant system - Google Patents
Device for detecting control parameters of refrigerant system Download PDFInfo
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- CN203323917U CN203323917U CN2013204088417U CN201320408841U CN203323917U CN 203323917 U CN203323917 U CN 203323917U CN 2013204088417 U CN2013204088417 U CN 2013204088417U CN 201320408841 U CN201320408841 U CN 201320408841U CN 203323917 U CN203323917 U CN 203323917U
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- detector tube
- refrigerant
- refrigerant pipeline
- coolant system
- temperature
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Abstract
The utility model provides a device for detecting control parameters of a refrigerant system. The refrigerant system comprises a compressor, a heat exchanger, a refrigerant pipeline and a detection device. The detection device comprises a detection pipe and a temperature sensor, wherein one end of the detection pipe is closed, the other end is opened, the opened end of the detection pipe is communicated with a high-pressure refrigerant pipeline required to be detected, partial pipeline body of the detection pipe is contacted with a pipe body of a low-temperature refrigerant pipeline, and the temperature sensor is arranged on the detection pipe body which is not contacted with the low-temperature refrigerant pipeline. The device provided by the utility model establishes a stable refrigerant saturation state detection area through the detection pipe, and enables a refrigerant in the detection pipe to always stay at a saturation state. The saturation temperature measured by adopting the method provided by the utility model does not affected by the circulation flow of the refrigerant and not affected by the air temperature outside neither. The device is simple to implement, low in cost and true and accurate in data value, and ensures the accuracy of a system control mode.
Description
Technical field
The utility model belongs to the air conditioning and refrigeration field of engineering technology, specifically, relates to a kind of device that coolant system is controlled parameter that detects.
Background technology
In the control of the whole coolant system of air-conditioning, high pressure refrigerant pressure or saturation temperature be as an important control parameter, usually can exert an influence to comprising the performing an action of vitals such as the aperture of controlling compressor frequency, electric expansion valve, rotation speed of fan.Determining of coolant system pressure, normally by detecting the saturation temperature in coolant system, by the corresponding relation of saturation temperature and coolant system pressure, and then definite coolant system pressure.Thereby saturation temperature is a very important control parameter.
The mode that in existing air-conditioning, many employings are laid thermistor at the medium position of heat exchanger is measured saturation temperature.But, when operation of air conditioner, usually the internal circulating load because of refrigerant changes, or heat exchanger air side temperature variation, cause temperature sensor location place refrigerant in superheat state or supercooled state, and then cause the saturation temperature that records inaccurate.Saturation temperature is measured inaccurate meeting and is caused the control system can not be in time correctly to comprising that the parameters such as press frequency, expansion valve opening, rotation speed of fan are adjusted, the phenomenon that misoperation occurs or be failure to actuate, and then cause operation of air conditioner abnormal, affect the normal use of air-conditioning.
In addition, at some, adopt in the product of plate type heat exchanger, in the hot water product as refrigerant-water heat exchange module, can't thermistor be set at the medium position of heat exchange process, thereby the also very difficult measurement of the saturation temperature of this system.
Although the method for adopts pressure sensor can be measured refrigerant pressure in real time, avoid saturation temperature to measure inaccurate problem simultaneously.But the pressure transducer cost is higher, easily cause the air-conditioning products cost to rise, price of complete machine is improved thereupon, and then air-conditioning products is descended in competitive power in price, lose competitive edge in price.
Summary of the invention
The utility model provides a kind of device that coolant system is controlled parameter that detects, when having solved the products such as air-conditioning, Teat pump boiler, wind cooling cold and hot water having measured refrigerant high pressure saturation temperature in operational process, because cold medium flux changes or the air side temperature variation causes temperature sensor location place refrigerant state-transition is superheat state or supercooled state, and then cause the inaccurate problem of saturation temperature recorded.The utility model can also solve the problem of adopts pressure sensor high expensive.
The utility model is a kind of brand-new measuring method that substitutes two kinds of existing measuring methods, and it utilizes detector tube to be detected the high pressure saturation temperature, and the problem that the refrigerant state changes can not occur, and also can avoid the expensive problem of pressure transducer simultaneously.
In order to solve the problems of the technologies described above, the technical solution of the utility model is, a kind of device that detects coolant system control parameter, described coolant system comprises compressor, heat interchanger and refrigerant pipeline, and pick-up unit, described pick-up unit comprises detector tube and temperature sensor, described detector tube one end seals, the other end is opened, the high pressure refrigerant pipeline connection of opening end and need to detecting of described detector tube, the part body contact of described detector tube is on the body of low temperature refrigerant pipeline, with the discontiguous detector tube body of low temperature refrigerant pipeline on described temperature sensor is set.
In the technical solution of the utility model, also there is following additional technical feature:
The connectivity part of the high pressure refrigerant pipeline that should detect higher than needs with the body of the contacted detector tube of low temperature refrigerant pipeline.
In the scope that the setting position of described temperature sensor is distance low-temperature refrigerant pipeline and detector tube body contact site 5-100mm.
The part body of described detector tube blind end is located on the body of low temperature refrigerant pipeline.
The body of described detector tube and low temperature refrigerant pipeline contact length are in the 6-30mm scope.
The body of described detector tube reliably contacts with the low temperature refrigerant pipeline.As be welded and fixed.
Described detector tube is two-part, one section is refrigerant storage pipe, another section is for taking over, described refrigerant storage Guan Yiduan seals, and the other end is communicated with adapter, the other end of adapter and the high pressure refrigerant pipeline connection that needs detection, the part body contact of described refrigerant storage duct occlusion end is on the body of low temperature refrigerant pipeline, described temperature sensor is arranged on the body with the discontiguous refrigerant of low temperature refrigerant pipeline storage pipe, and described refrigerant storage pipe position is upper, described adapter position under.
Described detector tube is an integrated pipe.
Described control parameter is refrigerant saturation temperature and coolant system pressure, by described temperature sensor, measures saturation temperature, by the corresponding relation of saturation temperature and pressure, and then draws coolant system pressure.
A kind of detection method of using said apparatus, when coolant system circular flow, the high pressure refrigerant enters detector tube inside by the high pressure refrigerant pipeline, the gaseous coolant of detector tube inside and the heat release condensation of low temperature refrigerant pipe contact site, and then to make the refrigerant in detector tube be state of saturation, record the saturation temperature of refrigerant by being laid in temperature sensor on detector tube, by the corresponding relation of saturation temperature and pressure, draw coolant system pressure.
A kind of device that detects coolant system control parameter, described coolant system comprises compressor, heat interchanger and refrigerant pipeline, and pick-up unit, described pick-up unit comprises detector tube and temperature sensor, described detector tube one end seals, and the other end is opened, the high pressure refrigerant pipeline connection of opening end and need to detecting of described detector tube, the body of described detector tube, in air, arranges described temperature sensor on the detector tube body.
A kind of detection method of using said apparatus, when coolant system circular flow, the high pressure refrigerant enters detector tube inside by the high pressure refrigerant pipeline, detector tube body and surrounding air are carried out heat exchange, make the gaseous coolant heat release condensation of detector tube inside, and then to make the refrigerant in detector tube be state of saturation, record the saturation temperature of refrigerant by being laid in temperature sensor on detector tube, by the corresponding relation of saturation temperature and pressure, draw coolant system pressure.
The utility model compared with prior art has the following advantages and good effect:
The utility model utilize detector tube within it section form miniature condensation process, can make the refrigerant state remain state of saturation, state of saturation is the characteristic of malleable not, to its measurement acquisition saturation temperature, record saturation temperature accurate, overcome the problem that deviation easily appears in existing thermosensitive resistance measurement method.Avoided because controlling the inaccurate control model disorder caused of parameter, and misoperation or the phenomenon of being failure to actuate.
2. utilize detector tube to be communicated with the high pressure refrigerant pipe, simple in structure, be easy to realize, cost is low, has overcome the expensive problem that adopts pressure sensor brings.
The accompanying drawing explanation
Fig. 1 is a kind of schematic diagram that detects the device embodiment 1 of coolant system control parameter of the utility model;
Fig. 2 is the local enlarged diagram of a-quadrant in Fig. 1;
1, compressor; 2, four-way valve; 3, evaporator; 4, condenser; 5, refrigerant pipeline; 5-1, high pressure refrigerant pipeline; 5-2, low temperature refrigerant pipe; 6, detector tube; 6-1, refrigerant storage pipe; 6-2, adapter; 7, temperature sensor; 8, throttling valve.
Embodiment
Embodiment 1
Referring to Fig. 1 and Fig. 2, coolant system of the present utility model comprises compressor 1, four-way valve 2, condenser 4, evaporator 3 and refrigerant pipeline 5.
In order accurately to record the refrigerant saturation temperature, inventive concept is should make refrigerant all the time in stable state of saturation, thereby should set up stable refrigerant state of saturation detection zone.
Technical scheme is, pick-up unit comprises detector tube 6, detector tube 6 one ends seal, the other end is opened, the end of opening of detector tube 6 is communicated with needing high pressure refrigerant pipeline 5-1 to be detected, and the part body of detector tube 6 is attached on the body of low temperature refrigerant pipeline 5-2, and a bit of body of detector tube 6 is contacted with the body of low temperature refrigerant pipeline 5-2, the way of contact can be to be welded and fixed, or ties up.Described temperature sensor 7 is set on detector tube 6 bodys, and the position of temperature sensor 7 should be located on the body of detector tube 6 in overhanging portion, also can say, be located at discontiguous detector tube 6 bodys of low temperature refrigerant pipeline 5-2 on.In the scope that the setting position of temperature sensor 7 is distance low-temperature refrigerant pipeline 5-2 and detector tube 6 body contact site 5-100mm.In the present embodiment, distance is 15mm.Our experiments show that, contact site will be avoided in the position of temperature sensor 7, but should be near detector tube 6 tops, and such position is refrigerant state of saturation stabilized zone, to reach, measures temperature purpose accurately.
The connectivity part of the high pressure refrigerant pipeline 5-1 that should detect higher than needs with the body of the contacted detector tube 6 of low temperature refrigerant pipeline 5-2, be beneficial to refrigerant steam in signal piping after condensation, liquid refrigerant is discharged signal piping automatically, and then forms lasting condensation process.。
In the present embodiment, the part body of detector tube 6 blind ends is located on the body of low temperature refrigerant pipeline 5-2.The body of detector tube 6 and low temperature refrigerant pipeline 5-2 contact length are 10mm.
In the present embodiment, described detector tube 6 is two-part, one section is refrigerant storage pipe 6-1, another section is for taking over 6-2, the upper end of described refrigerant storage pipe 6-1 is sealed, and lower end is communicated with adapter 6-2, and the other end of taking over 6-2 is communicated with needing the high pressure refrigerant pipeline 5-1 detected, this connectivity part is refrigerant pressure samples point, referring to Fig. 2.
The part body contact of refrigerant storage pipe 6-1 blind end is on the body of low temperature refrigerant pipeline 5-2, described temperature sensor 7 is arranged on the discontiguous refrigerant storage of low temperature refrigerant pipeline 5-2 and manages on the body of 6-1, refrigerant storage pipe 6-1 position is upper, described adapter 6-2 position under.Refrigerant storage pipe 6-1 internal diameter should be greater than takes over the 6-2 internal diameter.Take over 6-2 and can be common copper pipe or kapillary, select kapillary can easily refrigerant be store to tube portion and be arranged in different low temperature refrigerant pipeline places.
Certainly, as variation, detector tube 6 can be a monoblock type copper pipe, for example, selects the copper pipe of external diameter Ф 6.35mm.
High pressure refrigerant pipeline 5-1 and low temperature refrigerant pipeline 5-2 have the poor pipeline of high-low pressure in refrigerant pipeline 5.Taking over the high pressure refrigerant pipeline 5-1 place be communicated with is the pressure samples point.In the present embodiment, high pressure refrigerant pipeline 5-1 and low temperature refrigerant pipeline 5-2 are respectively gas outlet and the air intake duct of compressor, referring to Fig. 1.
Controlling parameter is refrigerant saturation temperature and coolant system pressure, by temperature sensor 7, measures saturation temperature, by the corresponding relation of saturation temperature and pressure, draws coolant system pressure.
Referring to Fig. 2, the detection method of refrigerant saturation temperature and pressure is described, when coolant system circular flow, the high pressure refrigerant enters detector tube 6 inside by high pressure refrigerant pipeline 5-1, the gaseous coolant of detector tube 6 inside and the heat release condensation of low temperature refrigerant pipe 5-2 contact site, and then to make the refrigerants in detector tube 6 be state of saturation, record the saturation temperature of refrigerant by being laid in temperature sensor 7 on detector tube 6, by the corresponding relation of saturation temperature and pressure, draw coolant system pressure.
Visible, the utility model is set up stable refrigerant state of saturation detection zone by detector tube 6, make the interior refrigerant of detector tube 6 all the time in state of saturation, the saturation temperature of utilizing the method to record, can not be subject to the impact of refrigerant circular flow, also can not be subject to the impact of outside air temperature, the numerical value true and accurate, guaranteed the correctness of system control model.
The device of a kind of detection coolant system pressure (or saturation temperature), coolant system comprises compressor, heat interchanger and refrigerant pipeline, and pick-up unit, pick-up unit comprises detector tube and temperature sensor, detector tube one end seals, and the other end is opened, the high pressure refrigerant pipeline connection of opening end and need to detecting of detector tube, the body of detector tube in air, set temperature sensor on the detector tube body.
The detection method of refrigerant saturation temperature and pressure, when coolant system circular flow, the high pressure refrigerant enters detector tube inside by the high pressure refrigerant pipeline, detector tube body and surrounding air are carried out heat exchange, make the gaseous coolant heat release condensation of detector tube inside, and then to make the refrigerant in detector tube be state of saturation, record the saturation temperature of refrigerant by being laid in temperature sensor on detector tube, by the corresponding relation of saturation temperature and pressure, draw coolant system pressure.
Visible, embodiment 2 difference from Example 1 are, detector tube is arranged in air, when environment temperature is low, can make equally refrigerant in detector tube in state of saturation, thereby reach the saturation temperature that records purpose accurately.Although this embodiment is diagram not, those skilled in the art can, according to explanation, know and understand this technical scheme.
The saturation temperature recorded by the utility model method, can not be subject to the impact of refrigerant circular flow, also can not be subject to the impact of outside air temperature, the Cost Problems of also having avoided adopts pressure sensor to bring, and simple in structure, be easy to realize, reliable.
Claims (10)
1. one kind is detected the device that coolant system is controlled parameter, described coolant system comprises compressor, heat interchanger and refrigerant pipeline, and pick-up unit, it is characterized in that: described pick-up unit comprises detector tube and temperature sensor, described detector tube one end seals, the other end is opened, the high pressure refrigerant pipeline connection of opening end and need to detecting of described detector tube, the contact of the part body of described detector tube on the body of low temperature refrigerant pipeline, with the discontiguous detector tube body of low temperature refrigerant pipeline on described temperature sensor is set.
2. a kind of device that coolant system is controlled parameter that detects according to claim 1 is characterized in that: the connectivity part of the high pressure refrigerant pipeline that should detect higher than needs with the body of the contacted detector tube of low temperature refrigerant pipeline.
3. a kind of device that coolant system is controlled parameter that detects according to claim 1, is characterized in that: in the scope that the setting position of described temperature sensor is distance low-temperature refrigerant pipeline and detector tube body contact site 5-100mm.
4. according to claim 1 or 2 or 3 described a kind of devices that coolant system is controlled parameter that detect, it is characterized in that: the part body of described detector tube blind end is located on the body of low temperature refrigerant pipeline.
5. a kind of device that coolant system is controlled parameter that detects according to claim 4, it is characterized in that: the body of described detector tube and low temperature refrigerant pipeline contact length are in the 6-30mm scope.
6. a kind of device that coolant system is controlled parameter that detects according to claim 1, it is characterized in that: described detector tube is two-part, one section is refrigerant storage pipe, another section is for taking over, described refrigerant storage Guan Yiduan seals, the other end is communicated with adapter, the other end of taking over and the high pressure refrigerant pipeline connection that needs detection, the part body contact of described refrigerant storage duct occlusion end is on the body of low temperature refrigerant pipeline, described temperature sensor is arranged on the discontiguous refrigerant of low temperature refrigerant pipeline and stores on the body of pipe, described refrigerant storage pipe position is upper, described adapter position under.
7. a kind of device that coolant system is controlled parameter that detects according to claim 1, it is characterized in that: described detector tube is an integrated pipe.
8. a kind of device that coolant system is controlled parameter that detects according to claim 1, it is characterized in that: described control parameter is refrigerant high-pressure and saturation temperature corresponding to high-pressure, measure saturation temperature by described temperature sensor, by the corresponding relation of saturation temperature and pressure, and then draw coolant system pressure.
9. one kind is detected the device that coolant system is controlled parameter, described coolant system comprises compressor, heat interchanger and refrigerant pipeline, and pick-up unit, it is characterized in that: described pick-up unit comprises detector tube and temperature sensor, described detector tube one end seals, and the other end is opened, the high pressure refrigerant pipeline connection of opening end and need to detecting of described detector tube, the body of described detector tube, in air, arranges described temperature sensor on the detector tube body.
10. a kind of device that coolant system is controlled parameter that detects according to claim 9 is characterized in that: the connectivity part of the high pressure refrigerant pipeline that should detect higher than needs with the body of the contacted detector tube of low temperature refrigerant pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204088417U CN203323917U (en) | 2013-07-10 | 2013-07-10 | Device for detecting control parameters of refrigerant system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204088417U CN203323917U (en) | 2013-07-10 | 2013-07-10 | Device for detecting control parameters of refrigerant system |
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| CN203323917U true CN203323917U (en) | 2013-12-04 |
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| CN2013204088417U Expired - Fee Related CN203323917U (en) | 2013-07-10 | 2013-07-10 | Device for detecting control parameters of refrigerant system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344357A (en) * | 2013-07-10 | 2013-10-09 | 海信（山东）空调有限公司 | Device for detecting coolant system control parameters and detecting method |
| CN109724745A (en) * | 2017-10-31 | 2019-05-07 | 上汽通用汽车有限公司 | Car air conditioner refrigerant testing auxiliary device |
-
2013
- 2013-07-10 CN CN2013204088417U patent/CN203323917U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344357A (en) * | 2013-07-10 | 2013-10-09 | 海信（山东）空调有限公司 | Device for detecting coolant system control parameters and detecting method |
| CN103344357B (en) * | 2013-07-10 | 2015-04-08 | 海信（山东）空调有限公司 | Device for detecting coolant system control parameters and detecting method |
| CN109724745A (en) * | 2017-10-31 | 2019-05-07 | 上汽通用汽车有限公司 | Car air conditioner refrigerant testing auxiliary device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20190710 |
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| CF01 | Termination of patent right due to non-payment of annual fee |