CN2839637Y - Piston type helium compressor - Google Patents
Piston type helium compressor Download PDFInfo
- Publication number
- CN2839637Y CN2839637Y CN 200520005887 CN200520005887U CN2839637Y CN 2839637 Y CN2839637 Y CN 2839637Y CN 200520005887 CN200520005887 CN 200520005887 CN 200520005887 U CN200520005887 U CN 200520005887U CN 2839637 Y CN2839637 Y CN 2839637Y
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- oil
- compressor
- deaerator
- piston type
- heat exchanger
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- 239000001307 helium Substances 0.000 title claims abstract description 37
- 229910052734 helium Inorganic materials 0.000 title claims abstract description 37
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 239000007789 gas Substances 0.000 claims abstract description 27
- 239000000872 buffer Substances 0.000 claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims description 10
- 238000000605 extraction Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 abstract description 9
- 238000005728 strengthening Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 72
- 238000000034 method Methods 0.000 description 9
- 239000003595 mist Substances 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 230000001131 transforming effect Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 241000238366 Cephalopoda Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000010725 compressor oil Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000002887 superconductor Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
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Abstract
The utility model relates to a piston helium compressor, its structure: an oil atomizer is arranged at the top end of a low-pressure cavity of the compressor head, an external circulation oil pump is communicated with an oil pool at the bottom of the compressor head, and a water-cooling oil heat exchanger is arranged on a pipeline communicated between the mechanical centrifugal oil atomizer and the external circulation oil pump; the high-pressure exhaust end of the compressor head is sequentially communicated with a water-cooled gas heat exchanger, an oil-gas separator and an adsorber communicated with the input end of the refrigerator; the buffer is arranged on a connecting pipeline between the exhaust end of the refrigerator and the low-pressure end of the compressor head; an oil return throttle valve is arranged on a connecting pipeline which is communicated with the low-pressure end of the compressor head at the oil discharge end of the oil-gas separator. The oil return throttle valve is a capillary throttle valve. The machine adopts the combination of internal and external cooling, thereby greatly strengthening the internal heat exchange; through the high-efficient deoiling clarifier, make compressor exhaust oil content very low, the continuous operation life-span of adsorber can exceed 10000 hours, its operation is reliable, safe.
Description
Technical field
The utility model relates to the compressor in refrigeration and cryogenic technique field, and is particularly a kind of specially for the matching used piston type helium compressor of small-sized refrigerator.
Background technique
Along with the extensive use at aspects such as medical treatment, scientific research, military affairs of the development of satellite communication technology, high temperature superconductor technology, ultra high vacuum technique and MRI equipment, SQUIDs device, infrared acquisition instrument, the demand of small-sized Cryo Refrigerator will be increasing.G-M type, pulse cast and stirling-type refrigerator are topmost application type in the small-sized refrigerator.Wherein G-M Cryo Refrigerator, compact structure stable and reliable for performance with it, working service are convenient, are widely used in communication, electronics and high vacuum technology field.The vacuum and low temperature pump of refrigerator cooling particularly, can obtain big pumping speed, not have oil cleaning ultrahigh vacuum, and compact structure, working service is convenient, and it is that very advantageous conditions has been created in the development that is applied to the no oily ultrahigh vacuum equipment of cleaning such as space environment simulation equipment, vacuum coating, semi-conducting material production and processing.The G-M Cryo Refrigerator is the absolutely main force's type in the cryopump always, in occupation of the market of the overwhelming majority.The emphasis of modern vacuum and low temperature pump research and development early improves its reliability.Its key link is exactly the G-M helium refrigerator.
The work of modern vacuum and low temperature pump requirement refrigerator will be stablized, reliability wants high, easy to maintenance, service life is long, cryogenic temperature is low, and refrigeration work consumption is wanted greatly.And the primary condition of refrigerator need of work is as air demand, pressure ratio. highly purified working medium helium etc. all needs compressor to provide.Some performance index of compressor will directly influence the performance index of refrigerator, so helium compressor is one of key equipment in the system.
The research work of small-sized helium compressor, the scientific worker has experienced research, manufactured and designed and has changed a social system three phases both at home and abroad for over ten years, the sixties, the U.S. was according to the requirement of G-M refrigerator, studied, designed semi-enclosed helium compressor, was used for satellite ground station; The housing of semi-closed compressor is linked together by bolt and cylinder cap, and housing can be dismantled; In being only applicable to, big refrigerating capacity unit, and be not suitable for small-sized Cryo Refrigerator.The freon hermetically sealed compressor that the end of the seventies, overseas utilization was produced in enormous quantities is changed system into the helium fully closed compressor; But,, can't satisfy the requirement of present big cold refrigerator so the compressor horsepower of transforming all is only limited to about 3kW because the heat dissipation problem of totally-enclosed compressor is the bottleneck in transforming always.
Helium compressor and G-M refrigerator composition helium refrigerator provide cold for the cold screen of cryopump.It is the heart of refrigerator, not only will provide the high-pressure helium of cleaning for decompressor, and relies on its realization refrigeration cycle.The technical difficulty of the helium compressor of small-sized refrigerator is big, system complex, compact overall structure, and this just requires the each several part volume of compressor little, efficient is high.The development of the helium compressor group of small-sized refrigerator will relate to cooling system, oil and gas separating system, oil return system, overflow regulator and electrical apparatus control system, protective system of compressor etc.
Summary of the invention
The purpose of this utility model is: the improvement by to the Piston Refrigerant Compreessor of routine provides a kind of piston type helium compressor that is applicable to the input power of small-sized Cryo Refrigerator in the 7.5kW level.
Technical solutions of the utility model are as follows:
The piston type helium compressor that the utility model provides as shown in Figure 4, comprises compressor head 1, outer circulation oil pump 2, water-cooled gas heat exchanger 3, water-cooled oil heat exchanger 4, mechanical centrifugal oil fogger A, deaerator 5, adsorber 7 and buffer 11; The centrifugal oil fogger A of described machinery is installed in the top of compressor head 1 low-pressure cavity, outer circulation oil pump 2 is connected with the bottom oil sump of compressor head 1, and water-cooled oil heat exchanger 4 is installed on the pipeline that is connected between the centrifugal oil fogger A of machinery and outer circulation oil pump 2; The adsorber 7 that the high pressure gas end of described compressor head 1 is communicated with water-cooled gas heat exchanger 3, deaerator 5 successively and is connected with the input end of refrigerator 8; It is characterized in that, also comprise the exhaust end that is installed in refrigerator 8 and the buffer 11 on the connecting pipeline between compressor head 1 low voltage terminal; On the oil extraction end of described deaerator 5 and the connecting pipeline that compressor head 1 low voltage terminal is connected the meter out valve is installed.Described meter out valve is the capillary-compensated valve.Described buffer 11 is one to have the pressurized container of certain internal volume.
Described deaerator 5 is a single-stage deaerator or 2-3 the multi-grade oil gas separating device that the series connection of single-stage deaerator constitutes.
Also comprise the shutdown discharge mechanism 13 on the connecting pipeline that is installed between final stage deaerator and buffer 11 exhaust ends, described shutdown discharge mechanism is a normal-open electromagnetic valve.
The final stage deaerator with for the connecting pipeline between buffer 11 exhaust ends on the inside bleeder valve 14 in parallel with described shutdown discharge mechanism 13 also is installed, described inner bleeder valve 14 is for opening the one-way valve of draught head between 1-2Mpa.Be separately installed with return check valve on the pipeline after the meter out valve of each grade deaerator in the described multi-grade oil gas separating device.
The centrifugal oil fogger A of described machinery comprises: the hollow cylinder of one one end sealing, the atomizing outlet aperture A2 that has at least 2 tangential oil-feed aperture A1 on its sidewall and communicate with cold oil heat exchanger 4 outlet end.
During use, outer circulation oil pump 2 is cooled to room temperature level through water-cooled oil gas heat exchanger 3 with oil with after high temperature oil pumps in compressor 1 oil sump; Cooled oil becomes the low-pressure cavity that trickle mist of oil sprays into compressor 1 behind oil fogger A, and is brought into compresser cylinder inside in the breathing process of compressor; Because the high temperature helium in mist of oil and the compressor fully mixes, utilize the sensible heat of mist of oil and latent heat and helium to carry out sufficient exchange heat, cooling effect is cooled off outside traditional simple cylinder great improvement.The helium of oil-containing enters high performance oil-gas separator and carries out Oil-gas Separation after cooling off through water-cooled oil gas heat exchanger, the oil content that separates is in the oil return pipeline comes back to the compressor oil sump.Helium by deaerator again by adsorber removing micro oil steam wherein, thereby obtain clean high pressure room temperature helium.The low pressure room temperature helium that returns compressor from refrigerator enters the low pressure air suction side of compressor after level and smooth its pressure surge of buffer, thereby finishes circulating of helium.
Advantage of the present utility model is: operation technique very maturation, the highly stable reliable piston type air-conditioner compressor of performance has guaranteed the operation stability and the reliability of machine as the prototype of transforming; Because the output of piston compressor is very big, cause its have other types incomparable price advantage, if can realize the yielding capacity of certain scale, then the price of complete machine advantage of being brought by declining to a great extent of miscellaneous part purchase price will be more obvious.
The drawing explanation
The outer oil circulation schematic representation of Fig. 1;
The generalized section of the centrifugal oil fogger of Fig. 2 machinery;
The outline drawing of the centrifugal oil fogger of Fig. 3 machinery;
The structural representation of Fig. 4 the utility model (comprising an embodiment who connects refrigerator);
The structural representation of Fig. 5 the utility model (comprising another embodiment who connects refrigerator);
Wherein: compressor head 1 outer circulation oil pump 2
Water-cooled gas heat exchanger 3 water-cooled oil heat exchangers 4
First deaerator, 51 second deaerators 52
Adsorber 7 first meter out valves 9
The second meter out valve, 10 buffers 11
Closed cycle refrigerator (as GM, PT etc.) 8 mechanical centrifugal oil fogger A
Shut down discharge mechanism 13 inner bleeder valves 14
First one-way valve, 15 second one-way valves 16
Tangential oil-feed aperture A1 atomizing outlet aperture A2
Embodiment
Existing face reaches embodiment in conjunction with the accompanying drawings and further describes the utility model:
The structural representation of the utility model (comprising an embodiment who connects refrigerator) is used for the magnet part of cooling high-temperature superconducting magnet experimental setup, makes it to maintain normal superconducting state;
As shown in Figure 4, comprise compressor head 1, outer circulation oil pump 2, water-cooled gas heat exchanger 3, water-cooled oil heat exchanger 4, mechanical centrifugal oil fogger A, deaerator 5, adsorber 7 and buffer 11; The centrifugal oil fogger A of described machinery is installed in the top of compressor head 1 low-pressure cavity, outer circulation oil pump 2 is connected with the bottom oil sump of compressor head 1, and water-cooled oil heat exchanger 4 is installed on the pipeline that is connected between the centrifugal oil fogger A of machinery and outer circulation oil pump 2; The adsorber 7 that the high pressure gas end of described compressor head 1 is communicated with water-cooled gas heat exchanger 3, deaerator 5 successively and is connected with the input end of refrigerator 8; Also comprise the exhaust end that is installed in refrigerator 8 and the buffer 11 on the connecting pipeline between compressor head 1 low voltage terminal; On the oil extraction end of described deaerator 5 and the connecting pipeline that compressor head 1 low voltage terminal is connected the meter out valve is installed.Described meter out valve is the capillary-compensated valve.Described buffer 11 is a hollow body.
Described deaerator 5 can be single-stage deaerator (i.e. deaerator); Also can be the multi-grade oil gas separating device that is cascaded and constitutes by 2-3 single-stage deaerator; As first deaerator 51 in the present embodiment (Fig. 4) and second deaerator 52.First deaerator 51 and second deaerator, 52 oil outlet ends are separately installed with the first meter out valve 9 and the second meter out valve 10.
Its working procedure is as follows:
Oil in 1 time oil sump of compressor by being positioned at the mechanical centrifugal oil fogger A on compressor 1 low-pressure cavity top, after the oil of the oil fogger A that flows through is atomized into tiny mist of oil, sprays into the low voltage side of compressor 1 after oil pump 2 superchargings; And in the breathing process of compressor 1, enter cylinder together with helium, in compression process, carry out sufficient heat exchange with helium.Be compressed to the gas mixture of high-temperature high-pressure state, after water first cold heat exchanger 3 and 4 coolings of second cold heat exchanger, become the normal temperature high voltage state; First deaerator 5 and second deaerator 6 by polyphone separated the oil content of the overwhelming majority from gas again; Isolated oil turns back in the oil sump of compressor head 1 through the oil return pipeline that meter out valve 9 and 10 are installed, to guarantee the proper functioning of the stable and assurance oil separator of oil mass in the compressor.The helium that contains micro oil steam after the absorption of adsorber 7, becomes the sufficiently high high normal pressure and temperature source of the gas of cleanliness again, in order to drive Cryo Refrigerator 8.The low normal pressure and temperature helium that returns from Cryo Refrigerator 8 enters in the compresser cylinder once more after buffer 11 level and smooth its pressure pulsations and is compressed, thereby finishes an enclosed refrigeration cycle.
Fig. 1 has provided oily outer circulation schematic representation.By calculating and a large amount of tests, selected the form and the rated flow of oil pump.Through to the oil fogger optimization of geometric parameters, finally selected best parameters combination, reached satisfied atomizing effect.Fig. 2 and Fig. 3 have then provided the sectional structure chart and the entity schematic representation of oil fogger respectively.
As shown in Figure 5, the structure of present embodiment roughly communicates with embodiment, and different is: oil heat exchanger, helium heat exchanger change air cooling into, make it to be adapted at the area use of lack of water; Be equipped with between final stage deaerator exhaust outlet and return-air buffer 11 outlet end and shut down discharge mechanism 13, and shut down discharge mechanism 13 inner bleeder valves 14 in parallel, described inner bleeder valve 14 is for opening pressure reduction adjustable one-way valve between 1-2Mpa.Described buffer 11 is one to have the withstand voltage hollow body of certain internal volume.Be separately installed with return check valve (first one-way valve 15 among the figure and second one-way valve 16) on the pipeline after the meter out valve of each grade deaerator in the described multi-grade oil gas separating device.
Its working procedure is as follows:
Present embodiment is comparatively similar with the working procedure described in the embodiment 1.Because heat exchanger used air-cooled heat exchanger, the noise when making the volume, weight of complete machine and work all increases to some extent.But it is advantageous that present embodiment can be applicable to the water-deficient area of water difficulty.Shutting down discharge mechanism 13 can be in compressor shutdown, and the pressure difference of balance high and low pressure side rapidly is to prevent the generation of the contamination phenomenon that air-flow causes in the abnormal flow of shutting down moment.The use of inner bleed valve 14 can make the compressor in the present embodiment can mate the small-sized refrigerator of different refrigerating capacitys, and the excessive situation of unlikely generation high low pressure pressure reduction.The one-way valve that is installed in oil separator oil extraction end has guaranteed the monotony of the oily flow direction, has guaranteed that simultaneously compressor opens, the stopping time, and the abnormality of reason oil does not flow and causes the pollution of exhaust.
Claims (8)
1, a kind of piston type helium compressor comprises compressor head (1), outer circulation oil pump (2), water-cooled gas heat exchanger (3), water-cooled oil heat exchanger (4), mechanical centrifugal oil fogger (A), deaerator (5), adsorber (7) and buffer (11); The centrifugal oil fogger of described machinery (A) is installed in the top of compressor head (1) low-pressure cavity, outer circulation oil pump (2) is connected with the bottom oil sump of compressor head (1), and water-cooled oil heat exchanger (4) is installed on the pipeline that is connected between the centrifugal oil fogger of machinery (A) and outer circulation oil pump (2); The adsorber (7) that the high pressure gas end of described compressor head (1) is communicated with water-cooled gas heat exchanger (3), deaerator (5) successively and is connected with the input end of refrigerator (8); It is characterized in that, also comprise the exhaust end that is installed in refrigerator (8) and the buffer (11) on the connecting pipeline between compressor head (1) low voltage terminal; On the oil extraction end of described deaerator (5) and the connecting pipeline that compressor head (1) low voltage terminal is connected the meter out valve is installed.
By the described piston type helium compressor of claim 1, it is characterized in that 2, described deaerator (5) is a single-stage deaerator or 2-3 the multi-grade oil gas separating device that the series connection of single-stage deaerator constitutes.
3, by the described piston type helium compressor of claim 2; it is characterized in that; also comprise the shutdown discharge mechanism (13) on the connecting pipeline that is installed between final stage deaerator and buffer (11) exhaust end, described shutdown discharge mechanism is a normally open solenoid valve.
4, by the described piston type helium compressor of claim 3; it is characterized in that; the final stage deaerator with for the connecting pipeline between buffer (11) exhaust end on the inside bleeder valve (14) in parallel with described shutdown discharge mechanism (13) also is installed, described inner bleeder valve (14) is to open the one-way valve of draught head between 1-2Mpa.
5, by the described piston type helium compressor of claim 1, it is characterized in that described meter out valve is the capillary-compensated valve.
6, by the described piston type helium compressor of claim 1, it is characterized in that described buffer (11) is a hollow body.
7, by the described piston type helium compressor of claim 2, it is characterized in that, be separately installed with return check valve on the pipeline after the meter out valve of each grade deaerator in the described multi-grade oil gas separating device.
8, by the described piston type helium compressor of claim 1, it is characterized in that, the centrifugal oil fogger of described machinery (A) comprising: the hollow cylinder of one one end sealing, the atomizing outlet aperture (A2) that has at least 2 tangential oil-feed apertures (A1) on its sidewall and communicate with cold oil heat exchanger (4) outlet end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520005887 CN2839637Y (en) | 2005-03-16 | 2005-03-16 | Piston type helium compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520005887 CN2839637Y (en) | 2005-03-16 | 2005-03-16 | Piston type helium compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2839637Y true CN2839637Y (en) | 2006-11-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520005887 Expired - Fee Related CN2839637Y (en) | 2005-03-16 | 2005-03-16 | Piston type helium compressor |
Country Status (1)
| Country | Link |
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| CN (1) | CN2839637Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100491740C (en) * | 2007-08-31 | 2009-05-27 | 清华大学 | High temperature gas cooled reactor centrifugal type helium gas compressor of pebble bed |
| CN102706024A (en) * | 2012-06-04 | 2012-10-03 | 上海森鑫新能源科技有限公司 | Stepped refrigerating system and method for recovering oil gas and defrosting method |
| CN103386238A (en) * | 2012-05-11 | 2013-11-13 | 中国科学院理化技术研究所 | Oil removing device for purifying gas |
| CN106679227A (en) * | 2015-11-09 | 2017-05-17 | 苏州三星电子有限公司 | Spraying refrigerating circulation system with automatic oil return function |
| CN107044740A (en) * | 2016-12-26 | 2017-08-15 | 中国电子科技集团公司第十六研究所 | A kind of superconducting magnet helium compressibility |
| CN108730160A (en) * | 2017-11-08 | 2018-11-02 | 安徽万瑞冷电科技有限公司 | A kind of helium compressor and its pre-heating mean with low-temperature prewarming function |
| CN113883600A (en) * | 2021-11-01 | 2022-01-04 | 罗长安 | Air conditioner double-compressor refrigerating system and air conditioner |
-
2005
- 2005-03-16 CN CN 200520005887 patent/CN2839637Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100491740C (en) * | 2007-08-31 | 2009-05-27 | 清华大学 | High temperature gas cooled reactor centrifugal type helium gas compressor of pebble bed |
| CN103386238A (en) * | 2012-05-11 | 2013-11-13 | 中国科学院理化技术研究所 | Oil removing device for purifying gas |
| CN103386238B (en) * | 2012-05-11 | 2015-07-22 | 中国科学院理化技术研究所 | Oil removing device for purifying gas |
| CN102706024A (en) * | 2012-06-04 | 2012-10-03 | 上海森鑫新能源科技有限公司 | Stepped refrigerating system and method for recovering oil gas and defrosting method |
| CN102706024B (en) * | 2012-06-04 | 2015-06-17 | 上海森鑫新能源科技有限公司 | Stepped refrigerating system and method for recovering oil gas and defrosting method |
| CN106679227A (en) * | 2015-11-09 | 2017-05-17 | 苏州三星电子有限公司 | Spraying refrigerating circulation system with automatic oil return function |
| CN107044740A (en) * | 2016-12-26 | 2017-08-15 | 中国电子科技集团公司第十六研究所 | A kind of superconducting magnet helium compressibility |
| CN108730160A (en) * | 2017-11-08 | 2018-11-02 | 安徽万瑞冷电科技有限公司 | A kind of helium compressor and its pre-heating mean with low-temperature prewarming function |
| CN113883600A (en) * | 2021-11-01 | 2022-01-04 | 罗长安 | Air conditioner double-compressor refrigerating system and air conditioner |
| CN113883600B (en) * | 2021-11-01 | 2023-02-10 | 湖北璞瑞斯节能技术服务有限公司 | Air conditioner double-compressor refrigerating system and air conditioner |
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| 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 |