CN1019894C - Refrigerating device with thermo-expansion valve as throttle controller - Google Patents
Refrigerating device with thermo-expansion valve as throttle controller Download PDFInfo
- Publication number
- CN1019894C CN1019894C CN 89105521 CN89105521A CN1019894C CN 1019894 C CN1019894 C CN 1019894C CN 89105521 CN89105521 CN 89105521 CN 89105521 A CN89105521 A CN 89105521A CN 1019894 C CN1019894 C CN 1019894C
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- CN
- China
- Prior art keywords
- refrigerating
- valve
- temperature
- expansion valve
- thermo
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The present invention relates to a vapour compression type refrigerating device which is particularly suitable for a vapour compression type refrigerator and an air conditioning device. A temperature difference type expansion valve is arranged between a dry filter and a vaporizer in a refrigerating system of the device. A left temperature sensing pipe and a right temperature sensing pipe of the valve respectively sense the selected two-point temperature between an outlet end of the valve and a suction end of a compressor or respectively sense temperatures of an environment and an air returning pipe. According to the circulation of temperature difference automatically regulating refrigerating agents of the pipes, refrigerating performance and efficiency are improved because the refrigerating working condition of the device can be automatically regulated, and the utilization rate and the average refrigerating capacity of an evaporation area are enhanced.
Description
The present invention is a kind of unit vapor compression type refrigerator, is specially adapted to steam compression type refrigerator and conditioner.
Knownly make the steam compression type refrigerator and the conditioner of throttling control with capillary, the flow of cold-producing medium is subjected to the influence of condensing pressure in its refrigeration system, and cooling condition can not be regulated automatically, so refrigeration performance and refrigerating efficiency all are restricted.
Task of the present invention provides a kind of cooling condition and can regulate automatically, the refrigerating plant that its refrigeration performance and refrigerating efficiency are all superior.
Known steam compression type refrigerator and conditioner, its refrigeration system has compressor, condenser, device for drying and filtering, evaporimeter and muffler, feature of the present invention is that a thermo-expansion valve is arranged between device for drying and filtering and evaporimeter, the entrance point of valve links to each other with the port of export of device for drying and filtering with tube connector, the port of export of valve links to each other with the entrance point of evaporimeter with tube connector, the port of export that the left and right sides temperature-sensitive pipe of valve is experienced valve respectively is to 2 selected between compressor air suction end temperature or experience environment temperature respectively and the muffler temperature, the port of export of valve to the tube connector of evaporator end can with muffler and weldering.
Accompanying drawing is one embodiment of the present of invention, and the present invention is further illustrated.
Accompanying drawing is the refrigerating system figure of steam compression type refrigerator
The course of work of the refrigeration system of refrigerator of steam compression type shown in the accompanying drawing is, become gases at high pressure after the compressed machine of low pressure refrigerant gas (1) compression, be condensed into highly pressurised liquid at condenser (2), drying filter (3) enters thermo-expansion valve (4) throttling becoming low pressure liquid and continues step-down at tube connector (7), the cold that absorbs the interior low-pressure gas of muffler (6) by the tube connector (7) with muffler (6) and weldering enters evaporimeter (5), the heat absorption evaporation becomes low-pressure gas in evaporimeter (5), and cooled via return air pipe (6) is got back to compressor (1) and finished circulation.The temperature of being experienced when the right temperature-sensitive pipe (4b) of thermo-expansion valve (4) is higher than the temperature that left temperature-sensitive pipe (4a) is experienced, and both temperature difference are during greater than the set-point of thermo-expansion valve (4), the open degree of thermo-expansion valve (4) increases, the internal circulating load of system increases thereupon, the corresponding raising of evaporating pressure and evaporating temperature, otherwise, when both temperature difference during less than the set-point of thermo-expansion valve (4), the open degree of thermo-expansion valve (4) is dwindled, the internal circulating load of system reduces thereupon, the corresponding reduction of evaporating pressure and evaporating temperature, cooling condition is regulated automatically, owing to improved the utilization rate of disengagement area and the average refrigerating capacity of system simultaneously, therefore the refrigeration performance and the refrigerating efficiency of device all are improved.
Claims (1)
1, a kind of unit vapor compression type refrigerator of doing throttling control with thermo-expansion valve, the refrigeration system of this device has compressor (1), condenser (2), device for drying and filtering (3), evaporimeter (5) and muffler (6), it is characterized in that between device for drying and filtering (3) and evaporimeter (5), a thermo-expansion valve (4) being arranged, the entrance point of valve links to each other with the port of export of device for drying and filtering (3) with tube connector, the port of export of valve links to each other the left and right sides temperature-sensitive pipe (4a of valve with tube connector (7) with the entrance point of evaporimeter (5), 4b) port of export of experiencing valve respectively is to 2 selected between compressor (1) suction end temperature or experience environment temperature respectively and muffler (6) temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89105521 CN1019894C (en) | 1989-08-21 | 1989-08-21 | Refrigerating device with thermo-expansion valve as throttle controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89105521 CN1019894C (en) | 1989-08-21 | 1989-08-21 | Refrigerating device with thermo-expansion valve as throttle controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1049712A CN1049712A (en) | 1991-03-06 |
| CN1019894C true CN1019894C (en) | 1993-02-10 |
Family
ID=4856248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89105521 Expired - Fee Related CN1019894C (en) | 1989-08-21 | 1989-08-21 | Refrigerating device with thermo-expansion valve as throttle controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1019894C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101571281B (en) * | 2008-04-30 | 2011-04-13 | 陈万仁 | Recycling system for exhaust steam of electric power plant |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102614753A (en) * | 2012-04-10 | 2012-08-01 | 南通中远船务自动化有限公司 | Compressed air drier |
| CN108151379B (en) * | 2017-12-25 | 2020-07-03 | 广东瑞星新能源科技有限公司 | Control method of electronic expansion valve of air source heat pump system |
| CN110398040B (en) * | 2019-08-05 | 2021-09-21 | 宁波奥克斯电气股份有限公司 | Refrigeration adjusting method and device and air conditioner |
-
1989
- 1989-08-21 CN CN 89105521 patent/CN1019894C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101571281B (en) * | 2008-04-30 | 2011-04-13 | 陈万仁 | Recycling system for exhaust steam of electric power plant |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1049712A (en) | 1991-03-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |