CN1030472A - Compressed steam refrigeration device - Google Patents
Compressed steam refrigeration device Download PDFInfo
- Publication number
- CN1030472A CN1030472A CN 88103060 CN88103060A CN1030472A CN 1030472 A CN1030472 A CN 1030472A CN 88103060 CN88103060 CN 88103060 CN 88103060 A CN88103060 A CN 88103060A CN 1030472 A CN1030472 A CN 1030472A
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- temperature
- capillary
- regulating valve
- automatic regulating
- evaporating temperature
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- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The known refrigerator of doing throttling control with capillary, because liquid supply rate capillaceous can not be regulated, therefore its cooling condition also changes thereupon when environment temperature or thermic load variation, characteristics of the present invention are that an evaporating temperature automatic regulating valve is set in refrigeration system, the ratio of utilizing the degree of superheat of evaporator outlet place gaseous refrigerant to regulate gas-liquid mixture in the capillary automatically, reach the purpose of automatic adjusting liquid supply rate, make the degree of superheat of evaporator outlet place gaseous refrigerant remain on set point value, thereby the utilization rate of disengagement area and the average refrigerating capacity of system have been improved, saved electric energy, cooled object can obtain lower temperature and have very strong quick-frozen ability simultaneously.
Description
The present invention is a unit vapor compression type refrigerator, is suitable for doing with capillary the refrigerating plant of throttling control, is specially adapted to compressed steam refrigeration device.
Known compressed steam refrigeration device adopts capillary to do throttling control, but when cooling condition changes because of environment temperature or thermic load, can not regulate liquid supply rate capillaceous automatically, the degree of superheat of the gaseous refrigerant at evaporator outlet place is a variable, so the average refrigerating capacity of system is lower, the working time is long, power consumption is big; Because evaporating pressure and temperature are decided by liquid supply rate capillaceous, and liquid supply rate capillaceous can not be regulated automatically, so evaporating temperature can not be regulated automatically, so the temperature of cooled object descends and is subjected to the restriction of evaporating temperature.
GN-86203403U provides a kind of refrigerating plant for this reason, adopt the method for regulating condensing pressure to regulate flow capillaceous, but its condenser adopts water-cooled, is subjected to certain restriction in the use.
Task of the present invention is that designing a kind of condenser is air cooling.Liquid supply rate capillaceous can be regulated automatically according to actual operating mode, makes the degree of superheat of evaporator outlet place gaseous refrigerant remain on the refrigerating plant of the superior and power saving of a kind of like this refrigeration performance of set point value.
Following technical scheme, can finish task proposed by the invention, an evaporating temperature automatic regulating valve promptly is set in refrigeration system, one is connected on the preceding high-pressure gas pipeline of aerial condenser, the other end is connected on the infusion pipeline before the capillary, and two temperature-sensitive pipes are experienced the temperature and the evaporating temperature of evaporator outlet place gaseous refrigerant respectively about the evaporating temperature automatic regulating valve.
The effect of evaporating temperature automatic regulating valve is, according to about two temperature difference that the temperature-sensitive pipe is experienced, regulate the ratio that enters the gas-liquid mixture in the capillary automatically.Thereby reach the purpose of regulating the capillary liquid supply amount.
Accompanying drawing has been described an embodiment, and the present invention has been made further instruction.
Fig. 1 is the longitudinal sectional view of evaporating temperature automatic regulating valve.
Fig. 2 is the refrigerating system figure of compressed steam refrigeration device.
Evaporating temperature automatic regulating valve shown in Figure 1; by left temperature-sensitive pipe (A); packing (3); bellows (7) and transmitter shaft (9) are formed the left pressure chamber of sealing; right temperature-sensitive pipe (B); packing (4); bellows (8) and transmitter shaft (10) are formed the right pressure chamber of sealing; about two pressure chambers charge cold-producing medium; spring (13) balance owing to the selected degree of superheat produce about the pressure differential of two pressure chambers; valve pocket has on (15); portal and be connected with tube connector (11) and (12); sliding spool (14) has the balance through hole; connection gasket (5); (6) be used for valve pocket (15) two ends and bellows (7); (8) seal welding, protective sleeve (1); (2) effect is the intensity that increases weld bond.
The course of work of evaporating temperature automatic regulating valve is, temperature when left side temperature-sensitive pipe (A) is experienced gaseous refrigerant and left evaporimeter, right temperature-sensitive pipe (B) is experienced evaporating temperature, both temperature difference are overheated many, when the degree of superheat during greater than set point value, the pressure of left side pressure chamber forces bellows (7) elongation by transmitter shaft (9), (10), bellows (8) and spring (13) compression, driving sliding spool (14) moves right, the import and export channel cross-section of valve pocket (15) is reduced, instead then, make its increase.
Compressed steam refrigeration device refrigeration system shown in Figure 2 is made up of 21-compressor, 22-aerial condenser, 23-capillary, 24-evaporimeter, 25-evaporating temperature automatic regulating valve.
Gases at high pressure major part after compressed machine (21) compression is condensed into liquid through aerial condenser (22), enter the preceding infusion pipeline of capillary (23), a small amount of gases at high pressure enter the preceding infusion pipeline of capillary (23) through evaporating temperature automatic regulating valve (25) to be mixed mutually with liquid refrigerant, become gas-liquid mixture and enter capillary (23) throttling together, return compressor in evaporimeter (24) heat absorption evaporation and finish circulation.Temperature decline or the rising of environment temperature rising condensing pressure when cooled object, the degree of superheat of evaporimeter (24) exit gaseous refrigerant is during less than set point value, adjusting by evaporating temperature automatic regulating valve (25), gas content in the gas-liquid mixture that enters capillary (23) is increased, the liquid supply rate of capillary (23) reduces, and evaporating pressure and temperature descend thereupon.Otherwise, when thermic load increases or the reduction of environment temperature decline condensing pressure, the gaseous refrigerant degree of superheat in evaporimeter (24) exit is during greater than set point value, adjusting by evaporating temperature automatic regulating valve (25), make gas content minimizing in the gas-liquid mixture that enters capillary (23), the liquid supply rate of capillary (23) increases, evaporating pressure and temperature rise thereupon, make the degree of superheat of evaporimeter (24) exit gaseous refrigerant remain on set point value, thereby the utilization rate of disengagement area and the average refrigerating capacity of system have been improved, reach purpose of power saving, cooled object can obtain lower temperature simultaneously, has improved the performance indications of refrigerating plant.
Claims (3)
1, a kind of refrigerating plant of doing throttling control with capillary, its refrigeration system has compressor, aerial condenser, capillary and evaporimeter, feature of the present invention is that an evaporating temperature automatic regulating valve is set in refrigeration system, one is connected on the preceding high-pressure gas pipeline of aerial condenser, and the other end is connected on the preceding infusion pipeline of capillary.
2, refrigerating plant according to claim 1 is characterized in that, two temperature-sensitive pipes are experienced the temperature and the evaporating temperature of evaporator outlet place gaseous refrigerant respectively about the evaporating temperature automatic regulating valve.
3; refrigerating plant according to claim 1; it is characterized in that; the evaporating temperature automatic regulating valve; by left temperature-sensitive pipe (A); packing (3); bellows (7) and transmitter shaft (9) are formed the left pressure chamber of sealing; right temperature-sensitive pipe (B); packing (4); bellows (8) and transmitter shaft (10) are formed the right pressure chamber of sealing; about two pressure chambers charge cold-producing medium; the pressure differential that spring (13) balance produces owing to the selected degree of superheat; valve pocket has on (15); portal and be connected with tube connector (11) and (12); sliding spool (14) has the balance through hole; connection gasket (5); (6) be used for valve pocket (15) two ends and bellows (7); (8) seal welding, protective sleeve (1); (2) effect is the intensity that increases weld bond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88103060 CN1007290B (en) | 1988-05-25 | 1988-05-25 | Compressed steam refrigeration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88103060 CN1007290B (en) | 1988-05-25 | 1988-05-25 | Compressed steam refrigeration device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1030472A true CN1030472A (en) | 1989-01-18 |
| CN1007290B CN1007290B (en) | 1990-03-21 |
Family
ID=4832423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88103060 Expired CN1007290B (en) | 1988-05-25 | 1988-05-25 | Compressed steam refrigeration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1007290B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100366997C (en) * | 2005-07-18 | 2008-02-06 | 华中科技大学 | CPC system having plane type capillary core evaporator and condenser |
| CN113175784A (en) * | 2021-05-05 | 2021-07-27 | 广东奥马冰箱有限公司 | Refrigeration appliance capable of automatically identifying quick-freezing requirements |
| CN113175783A (en) * | 2021-05-05 | 2021-07-27 | 广东奥马冰箱有限公司 | Control method for automatically identifying quick-freezing requirement |
| CN114110194A (en) * | 2021-11-16 | 2022-03-01 | 武汉大学 | Thermal device for realizing constant supply and return water temperature difference of heat exchanger |
-
1988
- 1988-05-25 CN CN 88103060 patent/CN1007290B/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100366997C (en) * | 2005-07-18 | 2008-02-06 | 华中科技大学 | CPC system having plane type capillary core evaporator and condenser |
| CN113175784A (en) * | 2021-05-05 | 2021-07-27 | 广东奥马冰箱有限公司 | Refrigeration appliance capable of automatically identifying quick-freezing requirements |
| CN113175783A (en) * | 2021-05-05 | 2021-07-27 | 广东奥马冰箱有限公司 | Control method for automatically identifying quick-freezing requirement |
| CN114110194A (en) * | 2021-11-16 | 2022-03-01 | 武汉大学 | Thermal device for realizing constant supply and return water temperature difference of heat exchanger |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1007290B (en) | 1990-03-21 |
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