CN203022997U - Coiled tube type liquid nitrogen heat sink structure for large-caliber cryogenic pump - Google Patents
Coiled tube type liquid nitrogen heat sink structure for large-caliber cryogenic pump Download PDFInfo
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- CN203022997U CN203022997U CN 201220659101 CN201220659101U CN203022997U CN 203022997 U CN203022997 U CN 203022997U CN 201220659101 CN201220659101 CN 201220659101 CN 201220659101 U CN201220659101 U CN 201220659101U CN 203022997 U CN203022997 U CN 203022997U
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- liquid nitrogen
- heat sink
- pipe
- end socket
- inlet pipe
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Abstract
The utility model discloses a coiled tube type liquid nitrogen heat sink structure for a large-caliber cryogenic pump. The coiled tube type liquid nitrogen heat sink structure for the large-caliber cryogenic pump comprises a barrel body, an end socket, a liquid nitrogen inlet pipe and a liquid nitrogen outlet pipe. The barrel and the end socket are welded together to form a heat sink screen body, the liquid nitrogen inlet pipe and the liquid nitrogen outlet pipe are arranged in the outer wall in parallel, the liquid nitrogen inlet pipe is U-shaped, the side face of a straight pipe of one side of the liquid nitrogen inlet pipe is communicated with a plurality of liquid nitrogen branch pipes with equal intervals, the plurality of liquid nitrogen branch pipes circle the outer wall of the barrel body in parallel for a circle and are connected with the liquid nitrogen outlet pipe, the tail end of the liquid nitrogen inlet pipe is connected with an end socket coil pipe in a leading-out mode, the end socket coil pipe cricles the outer wall surface of the end socket in a snakelike mode, the tail end of the end socket coil pipe is connected and welded with the liquid nitrogen outlet pipe, the inlet ends of the liquid nitrogen inlet pipe and the liquid nitrogen outlet pipe are respectively provided with flexible hoses in a welding mode, the other ends of the flexible hoses are respectively provided with leading-out pipes in a welding mode, and a plurality of cold guiding support legs are evenly distributed and installed on the circumference of the opening portion of the heat sink screen body. The coiled tube type liquid nitrogen heat sink structure for the large-caliber cryogenic pump is simple and reasonable in structure, and light in weight, a whole heat sink structure has good temperature uniformity, and the coiled tube type liquid nitrogen heat sink structure for the large-caliber cryogenic pump is not limited by the installation position of a cryogenic pump.
Description
Technical field
The utility model relates to the cryogenic vacuum field, is specially a kind of heavy caliber cryopump with coil pipe type liquid nitrogen heat sink structure.
Background technique
Fast development along with China's aerospace industry, demand to the heavy caliber cryopump is more and more, and the heavy caliber cryopump is larger to the demand of cold, general Cryo Refrigerator one-level refrigerating capacity is difficult to satisfy the refrigeration requirement of heavy caliber cryopump, just occurred utilizing the auxiliary cryopump of liquid nitrogen for this reason, disclose a kind of heavy caliber cryopump with liquid nitrogen heat sink as CN202250681U and utilized exactly the liquid nitrogen assisted Extraction for cold.But the cryopump of this invention in use will such as vertical and horizontally be selected respectively vertical and horizontal liquid nitrogen heat sink according to installation position, and homogenous configuration can not satisfy the arbitrary orientation installation requirement of cryopump.In addition, the liquid nitrogen heat sink structure of this invention is the hollow cavity structure that is welded by two semicircle corrosion resistant plates, be logical liquid nitrogen region in hollow cavity between two plates, belong to liquid nitrogen storage tank formula, the liquid nitrogen heat sink structure of this kind structure makes the weight of liquid nitrogen heat sink larger, thereby makes the weight of whole cryopump larger.
The model utility content
The purpose of this utility model is to provide a kind of heavy caliber cryopump coil pipe type liquid nitrogen heat sink structure, can not satisfy the arbitrary orientation installation requirement of cryopump with traditional liquid nitrogen heat sink structure in the solution prior art, and weight is larger, and then causes the larger problem of whole cryopump weight.
For achieving the above object, the technical solution adopted in the utility model is:
heavy caliber cryopump coil pipe type liquid nitrogen heat sink structure, it is characterized in that: include cylindrical shell, end socket, the liquid nitrogen inlet pipe, liquid nitrogen goes out pipe, described cylindrical shell and end socket weld together and consist of heat sink screen body, described liquid nitrogen inlet pipe and liquid nitrogen go out pipe and are set up in parallel at cylinder body outer wall, described liquid nitrogen inlet pipe is U-shaped structure, and wherein on one side the straight tube side equidistantly is communicated with many identical liquid nitrogen of length and is in charge of, many liquid nitrogen be in charge of parallel after cylinder body outer wall coiling one circle the access liquid nitrogen go out pipe, described liquid nitrogen inlet pipe end leads to the end socket coil pipe, described end socket coil pipe is snakelike and is coiled on the end socket outer wall, and end access liquid nitrogen goes out to manage and welds, described liquid nitrogen inlet pipe and liquid nitrogen go out the tube inlet end and are welded with respectively flexible hose, the described flexible hose the other end is welded with respectively fairlead, described heat sink screen body oral area circumference uniform distribution is equipped with several conduction cooling supporting foots.
Described heavy caliber cryopump is characterized in that with coil pipe type liquid nitrogen heat sink structure: described cylindrical shell, end socket, liquid nitrogen inlet pipe, liquid nitrogen go out that pipe, liquid nitrogen are in charge of, end socket coil pipe, conduction cooling supporting foot all adopt heat-conducting property preferably the red copper material make.
Described heavy caliber cryopump is characterized in that with coil pipe type liquid nitrogen heat sink structure: liquid nitrogen inlet pipe, liquid nitrogen go out that pipe, liquid nitrogen are in charge of, the cylindrical shell of end socket coil pipe and heat sink screen body and the whole silver brazing of end socket employing connect the mode precision and combines.
Described heavy caliber cryopump coil pipe type liquid nitrogen heat sink structure, it is characterized in that: the cylindrical shell of described conduction cooling supporting foot and heat sink screen body adopts screw fastening or rivet mode close contact, is lined with the indium sheet between surface of contact.
The beneficial effects of the utility model are:
1), heat sink structure integral body has temperature homogeneity preferably;
2), be not subjected to the restriction of cryopump installation position, which kind of orientation cryopump adopts install and all can use, and performance can't be affected because of the mounting point;
3), simple and reasonable, weight is lighter.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
as shown in Figure 1, a kind of heavy caliber cryopump coil pipe type liquid nitrogen heat sink structure, comprise: 1, cylindrical shell, 2, end socket, 3, the liquid nitrogen inlet pipe, 4, liquid nitrogen goes out pipe, 5, flexible hose, 6, fairlead, 7, liquid nitrogen is in charge of, 8, the end socket coil pipe, 9, the conduction cooling supporting foot, 10, screw, 11, nut, wherein, cylindrical shell 1 and end socket 2 weld together and consist of heat sink screen body, liquid nitrogen inlet pipe 3 is U-shaped structure, the straight tube side equidistantly has a plurality of exit orifices on one side, each exit orifice welds respectively a liquid nitrogen and is in charge of 7, many liquid nitrogen divides length of tube identical, parallel around cylindrical shell 1 outer wall coiling one circle, liquid nitrogen is in charge of end access liquid nitrogen and is gone out pipe 4, liquid nitrogen goes out that on pipe 4 sides, correspondence has a plurality of equally spaced inlet holes, be in charge of 7 welding mutually with each liquid nitrogen respectively, the quantity of being in charge of liquid nitrogen depends on the height of cylindrical shell 1, each liquid nitrogen is in charge of 7 and is all carried out silver brazing with cylindrical shell 1 outer wall along tube wall and connect, liquid nitrogen inlet pipe 3 and liquid nitrogen go out pipe 4 and also connect with cylindrical shell 1 outer wall silver brazing respectively, liquid nitrogen inlet pipe 3 ends are drawn an end socket coil pipe 8 and are snakelike and are coiled on end socket 2 outer wall, end enters liquid nitrogen and goes out pipe 4 and welding, 8 silver brazing of end socket coil pipe are on end socket 2 outer wall, be used for cooling end socket 2, liquid nitrogen inlet pipe 3 and liquid nitrogen go out pipe 4 entry ends and weld respectively a flexible hose 5, the other end of flexible hose 5 welds respectively fairlead 6 again, flexible hose 5 can facilitate and regulate fairlead 6 drawing and installing from the cryopump housing, heat sink screen body oral area circumference uniform distribution is installed several conduction cooling supporting foots 9, be fixed on cylindrical shell 1 with screw 10 and nut 11, be mainly used to the radiation baffle device of fixed support cryopump, and make it obtain the cryogenic temperature that needs via cylindrical shell 1 conduction to radiation baffle the cold that liquid nitrogen provides, conduction cooling supporting foot and cylindrical shell contacting point are lined with the indium sheet, increase conduction cooling.
Heavy caliber cryopump of the present utility model can be applied to coil pipe type liquid nitrogen heat sink structure on the cryopump with liquid nitrogen heat sink of various different bores, and the each several part physical dimension is done corresponding adjustment according to the bore of cryopump and the heat sink size of required configuration.The quantity that liquid nitrogen is in charge of can be shielded the height of body according to liquid nitrogen, the uniformity that reaches temperature required time and screen temperature is calculated selection, and what of the structure of cryopump radiation baffle, size, point of heat transfer are the quantity of conduction cooling supporting foot can determine according in addition.
Although above embodiment of the present utility model has been given to describe in detail and explanation; but what should indicate is; those skilled in the art can carry out various equivalences to above-mentioned mode of execution according to the spirit of model utility and changes and revise; its function that produces all should be within the utility model protection domain when not exceeding spiritual that specification and accompanying drawing contain.
Claims (4)
1. the heavy caliber cryopump is with coil pipe type liquid nitrogen heat sink structure, it is characterized in that: include cylindrical shell, end socket, the liquid nitrogen inlet pipe, liquid nitrogen goes out pipe, described cylindrical shell and end socket weld together and consist of heat sink screen body, described liquid nitrogen inlet pipe and liquid nitrogen go out pipe and are set up in parallel at cylinder body outer wall, described liquid nitrogen inlet pipe is U-shaped structure, and wherein on one side the straight tube side equidistantly is communicated with many identical liquid nitrogen of length and is in charge of, many liquid nitrogen be in charge of parallel after cylinder body outer wall coiling one circle the access liquid nitrogen go out pipe, described liquid nitrogen inlet pipe end leads to the end socket coil pipe, described end socket coil pipe is snakelike and is coiled on the end socket outer wall, and end access liquid nitrogen goes out to manage and welds, described liquid nitrogen inlet pipe and liquid nitrogen go out the tube inlet end and are welded with respectively flexible hose, the described flexible hose the other end is welded with respectively fairlead, described heat sink screen body oral area circumference uniform distribution is equipped with several conduction cooling supporting foots.
2. heavy caliber cryopump as claimed in claim 1 with coil pipe type liquid nitrogen heat sink structure, is characterized in that: described cylindrical shell, end socket, liquid nitrogen inlet pipe, liquid nitrogen go out that pipe, liquid nitrogen are in charge of, end socket coil pipe, conduction cooling supporting foot all adopt heat-conducting property preferably the red copper material make.
3. heavy caliber cryopump as claimed in claim 1 with coil pipe type liquid nitrogen heat sink structure, is characterized in that: liquid nitrogen inlet pipe, liquid nitrogen go out that pipe, liquid nitrogen are in charge of, the cylindrical shell of end socket coil pipe and heat sink screen body and the whole silver brazing of end socket employing connect the mode precision and combines.
4. heavy caliber cryopump as claimed in claim 1 is with coil pipe type liquid nitrogen heat sink structure, and it is characterized in that: cylindrical shell employing screw fastening or the rivet mode close contact of described conduction cooling supporting foot and heat sink screen body are lined with the indium sheet between surface of contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220659101 CN203022997U (en) | 2012-12-04 | 2012-12-04 | Coiled tube type liquid nitrogen heat sink structure for large-caliber cryogenic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220659101 CN203022997U (en) | 2012-12-04 | 2012-12-04 | Coiled tube type liquid nitrogen heat sink structure for large-caliber cryogenic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203022997U true CN203022997U (en) | 2013-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220659101 Expired - Fee Related CN203022997U (en) | 2012-12-04 | 2012-12-04 | Coiled tube type liquid nitrogen heat sink structure for large-caliber cryogenic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203022997U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603788A (en) * | 2013-10-18 | 2014-02-26 | 昆山珍实复合材料有限公司 | Secondary cold plate in vacuum low-temperature pump |
| CN107588015A (en) * | 2017-07-27 | 2018-01-16 | 中国科学院合肥物质科学研究院 | A kind of centrifugal cold compressor |
| CN108547753A (en) * | 2018-03-22 | 2018-09-18 | 兰州真空设备有限责任公司 | A kind of heavy caliber liquid nitrogen-GM type cryogenic pumps |
-
2012
- 2012-12-04 CN CN 201220659101 patent/CN203022997U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603788A (en) * | 2013-10-18 | 2014-02-26 | 昆山珍实复合材料有限公司 | Secondary cold plate in vacuum low-temperature pump |
| CN103603788B (en) * | 2013-10-18 | 2017-01-11 | 南通乐士机械有限公司 | Secondary cold plate in vacuum low-temperature pump |
| CN107588015A (en) * | 2017-07-27 | 2018-01-16 | 中国科学院合肥物质科学研究院 | A kind of centrifugal cold compressor |
| CN108547753A (en) * | 2018-03-22 | 2018-09-18 | 兰州真空设备有限责任公司 | A kind of heavy caliber liquid nitrogen-GM type cryogenic pumps |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20130626 Termination date: 20151204 |
|
| EXPY | Termination of patent right or utility model |