CN204513836U - The step-less adjustment load device of gas expansion process of refrigerastion - Google Patents
The step-less adjustment load device of gas expansion process of refrigerastion Download PDFInfo
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- CN204513836U CN204513836U CN201520092263.XU CN201520092263U CN204513836U CN 204513836 U CN204513836 U CN 204513836U CN 201520092263 U CN201520092263 U CN 201520092263U CN 204513836 U CN204513836 U CN 204513836U
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- less adjustment
- refrigerastion
- load device
- expansion process
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Abstract
The utility model belongs to a kind of step-less adjustment load device of gas expansion process of refrigerastion; Comprise the turnover feed channel be connected with threeway first end, threeway second end is connected with the import of water cooler with decompressor pressurized end by piston compressor, cooler is passed through in the outlet of decompressor pressurized end, expander end is connected with threeway the 3rd end with heat exchanger, and described decompressor pressurized end is connected by bearing with between expander end; Have equipment investment little, start impact little, isolation effect is good, is easy to realize, from steadily, to realize the advantage of step-less adjustment under the prerequisite of the highest refrigerating efficiency.
Description
Technical field
The utility model belongs to gas expansion refrigeration technology field, is specifically related to a kind of step-less adjustment load device of gas expansion process of refrigerastion.
Background technology
Due to gas, (refrigeration working medium can be He, CO
2, N
2), the gases such as air are in expansion process externally meritorious output, and in post-expansion gas, potential energy increases, and these energy of consumption all need interior kinetic energy to compensate, and therefore gas temperature must reduce, and produce cold effect.First Gas Refrigerator is using air as working medium in history, is called cold air machine.The thermodynamic cycle that it adopts is Bretton (Brayton) kind of refrigeration cycle, is made up of two equipressures and isentropic procedure, and the gas working medium in Brayton cycle does not gather state and changes (not having phase transformation), is also referred to as Gas Refrigerator circulation.Gas is be compressed to elevated pressures Pc by pressure within the compressor as shown in the figure, then cooler is entered, heat is released to cooling medium (water or circulating air), gases at high pressure enter decompressor again, experience does the adiabatic expansion of external work, reaches very low temperature, enters again ice chest absorption refrigeration, then sucked by compressor again, so complete circulation.
Adopt frequency converter to regulate the rotating speed of compressor electric motor for regulating the method for cooling load to mainly contain in current gas expansion kind of refrigeration cycle, reduce the drawing velocity of piston ring, reduce the capacity of compressor, thus reduce the gas expansion amount of decompressor, reduce cooling load, thus the object of saving power consumption can be reached, weak point following points: (one) energy consumption is high, efficiency is low, and volume is large, heavy.(2) power factor is low, and harmonic pollution is large.(3) impact is started large.(4) isolation effect is poor.
Utility model content
The purpose of this utility model is to overcome defect of the prior art, and provide a kind of equipment investment little, start impact little, isolation effect is good, be easy to realize, from steadily, the step-less adjustment load device of the gas expansion process of refrigerastion of step-less adjustment to be realized under the prerequisite of the highest refrigerating efficiency.
The purpose of this utility model is achieved in that the turnover feed channel comprising and being connected with threeway first end, threeway second end is connected with the import of water cooler with decompressor pressurized end by piston compressor, cooler is passed through in the outlet of decompressor pressurized end, expander end is connected with threeway the 3rd end with heat exchanger, and described decompressor pressurized end is connected by bearing with between expander end.
The utility model overcomes traditional idea, according to gas PVT relation, the gas of the amount of the different material principle that volume flow is identical is at various pressures utilized to realize the method for decompressor Effec-tive Function under different tolerance condition, compared to common procedure, there is equipment investment little, start impact little, isolation effect is good, is easy to realize, from steadily, to realize step-less adjustment under the prerequisite of the highest refrigerating efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
As shown in Figure 1, the utility model is the step-less adjustment load device of gas expansion process of refrigerastion, comprise the turnover feed channel 9 be connected with threeway 1 first end, threeway 1 second end is connected with the import of water cooler 6 with decompressor pressurized end 3 by piston compressor 5, the outlet of decompressor pressurized end 3 is by cooler 7, expander end 1 is connected with threeway 1 the 3rd end with heat exchanger 4, and described decompressor pressurized end 3 is connected by bearing 2 with between expander end 1.
Operation principle of the present utility model comprises the steps: step one: the gas that piston compressor 5 exports enters water cooler 6 import, decompressor pressurized end 3 supercharging is further entered after being cooled to normal temperature, cooler 7 is entered after supercharging, expander end is entered after being again cooled to uniform temperature, cryogenic gas after expansion enters heat exchanger 4 and outwards provides cold, itself entered threeway 8 by after rewarming to normal temperature, finally enter piston compressor 5 and again compressed whole circulation.Step 2: when needs increase refrigerating capacity, turnover feed channel 9 passes into gas by threeway 8 first end, and improve the admission pressure of piston compressor 5, the corresponding increase of pressure at expulsion of piston compressor 5, volumetric flow of gas is constant, again completing steps one process.Step 2: when needs reduce refrigerating capacity, by first end and the turnover feed channel 9 place Exhaust Gas of threeway 8, reduce the admission pressure of piston compressor 5, the corresponding reduction of pressure at expulsion of piston compressor 5, volumetric flow of gas is constant, again completing steps one process.
Gaseous species of the present utility model can be determined as required, can be helium, carbon dioxide, nitrogen, air etc.
Claims (1)
1. the step-less adjustment load device of a gas expansion process of refrigerastion, comprise the turnover feed channel (9) be connected with threeway (1) first end, it is characterized in that: threeway (1) second end is connected with the import of water cooler (6) with decompressor pressurized end (3) by piston compressor (5), the outlet of decompressor pressurized end (3) is by cooler (7), expander end (1) is connected with threeway (1) the 3rd end with heat exchanger (4), described decompressor pressurized end (3) is connected by bearing (2) with between expander end (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520092263.XU CN204513836U (en) | 2015-02-02 | 2015-02-02 | The step-less adjustment load device of gas expansion process of refrigerastion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520092263.XU CN204513836U (en) | 2015-02-02 | 2015-02-02 | The step-less adjustment load device of gas expansion process of refrigerastion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204513836U true CN204513836U (en) | 2015-07-29 |
Family
ID=53711809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520092263.XU Active CN204513836U (en) | 2015-02-02 | 2015-02-02 | The step-less adjustment load device of gas expansion process of refrigerastion |
Country Status (1)
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| CN (1) | CN204513836U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612571A (en) * | 2018-07-04 | 2018-10-02 | 西安热工研究院有限公司 | A kind of supercritical carbon dioxide Brayton cycle working medium regulating system and method |
| CN114320497A (en) * | 2020-10-10 | 2022-04-12 | 河南科技大学 | Supercritical carbon dioxide gas cooling and recycling device for Brayton cycle power generation system |
-
2015
- 2015-02-02 CN CN201520092263.XU patent/CN204513836U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612571A (en) * | 2018-07-04 | 2018-10-02 | 西安热工研究院有限公司 | A kind of supercritical carbon dioxide Brayton cycle working medium regulating system and method |
| CN108612571B (en) * | 2018-07-04 | 2024-05-03 | 西安热工研究院有限公司 | Supercritical carbon dioxide Brayton cycle working medium adjusting system and method |
| CN114320497A (en) * | 2020-10-10 | 2022-04-12 | 河南科技大学 | Supercritical carbon dioxide gas cooling and recycling device for Brayton cycle power generation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |