CN204437700U - A kind of vacuumizing of vacuum insulation deep cooling pressurized container draws valve - Google Patents
A kind of vacuumizing of vacuum insulation deep cooling pressurized container draws valve Download PDFInfo
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- CN204437700U CN204437700U CN201520058352.2U CN201520058352U CN204437700U CN 204437700 U CN204437700 U CN 204437700U CN 201520058352 U CN201520058352 U CN 201520058352U CN 204437700 U CN204437700 U CN 204437700U
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- valve body
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Abstract
The utility model relates to one and draws valve, and particularly a kind of vacuumizing of vacuum insulation deep cooling pressurized container draws valve.It is characterized in that: the first flange is connected by flange connecting assembly, standard bolt, standard wing nut, standard plain cushion with the second flange, there is the 2nd O shape circle between second flange and one end of valve body and be connected by the first customization nut, the other end of valve body is connected with the first axle bumper block, the second axle bumper block, 3rd customization nut, the 4th customization nut are connected with valve body respectively, pull bar inserts in valve body, valve body there are two oblique mouths of valve body, have the 3rd O shape circle between the oblique mouth of one of them valve body and three-flange and be connected by the second customization nut.Owing to adopting technique scheme, the advantage that the utility model has and good effect are: repeatedly vacuumize easy to loading and unloading, and add survey vacuum at alternate outlets, directly can observe degree of vacuum.
Description
Technical field
The utility model relates to one and draws valve, and particularly a kind of vacuumizing of vacuum insulation deep cooling pressurized container draws valve.
Background technique
At present, the gas of industrial main use, as oxygen, nitrogen, argon gas, helium and ethene, methane etc., under normal pressure, boiling point is all between-100 ~-269 DEG C, if these gas liquids are changed into liquid, its volume can be reduced to original 1/400 ~ 1/800, and this is all that very economy is easily to effective storage, transport etc. of gas.Our country, from the fifties, just starts the development work of Cryo Heat Insulation technology and cryogenic liquid plants, the 15L liquid oxygen container produced the earliest, adopt high-vacuum insulation, spherical double-wall structure, inside and outside cylindrical shell all adopts copper plate to make, and neck tube adopts German alloy silver tube to make.This form now replace by high vacuum multiple layer heat insulation structure.The volume produced the earliest is the liquid oxygen tank of 5 cubic metres, is to adopt cylindrical double wall construction.Inner barrel brass sheet is made, and outer cylinder body Carbon Steel Plate is made.Interlayer filling rice pool draws plastics, and normal pressure is adiabatic.Along with the development of Cryo Heat Insulation technology and perfect, heat-insulation material such as pearlife, silica gel, aerogel etc. are trial-produceed successfully in succession, and a kind of vacuum-powders insulation technology of function admirable is widely adopted aborning.To be volume the be horizontal liquid nitrogen basin of 18.5 cubic metres applying this adiabatic form at first.The inner barrel of this basin adopts corrosion resistant plate to make, and outer cylinder body adopts normal carbon steel plate to make.Thermoinsulation material is 80 ~ 120 object silica gel powder, and layer vacuum is 1 × 10
-2holder.From the seventies, China can self design multi items, all kinds vacuum-powders insulation basin of many specifications.Low for critical temperature, to be difficult to liquefaction medium, stores in the liquid state and namely needs to take complicated cryogenic insulating technique.But owing to being " deep cooling ", the serviceability temperature of this container and the difference of ambient temperature very large, need " thermal insulation " effect good especially, therefore need to remain enough degree of vacuum in the thermal insulating layer of this container, for vacuum insulation pressurized container, the exception boosting of container when vacuum performance decline can cause running cold and normal use, abnormal boosting can cause the frequent take-off of vessel safety valve ... the frequent take-off of safety valve is that one after the abnormal boosting of container is partial to promising results, is the result under safety valve does not have malfunctioning situation.Safety valve can be malfunctioning because of the phenomenon such as adhesion, corrosion, the still not take-off when container exceedes predetermined pressure of the safety valve after malfunctioning, and being therefore out of shape, revealing the consequence that even blast etc. harm is larger also likely appears when abnormal boosting situation in container.Therefore except improving thermoinsulation material to except keeping degree of vacuum, also should control from manufacture process, even will consider again vacuumize when vacuum degree deficiency convenient.Existing vacuumize draw valve and to find time between mouth mostly to adopt to be threaded, adopt this kind of structure one be at the end of vacuumizing the dismounting time longer, cause leakage contribution degree of vacuum; Two is may have micro-leakage at vacuumizing phase jointing, and the pumpdown time is longer; If three is that inipple uses for a long time, thread rapid wear and easily getting rusty, giving again to vacuumize makes troubles, only economically consider, the degree of vacuum of taking out vacuum and making vacuum insulation pressurized container remain enough is mended when vacuum degree deficiency, also more cost-saving than making the frequent take-off of safety valve because of vacuum degree deficiency.
Summary of the invention
Technical problem to be solved in the utility model is: provide a kind of vacuumizing of vacuum insulation deep cooling pressurized container to draw valve, can solve and existingly vacuumize when drawing valve to remove that degree of vacuum reduces, vacuum or have micro-leakage, be not easy to repeat shortcomings such as vacuumizing.
The utility model solves the technological scheme that its technical problem adopts: be designed to easily detachable bivalve adpting flange assembly, by wing nut and gasket seal locking vacuum filter, reduce and the connect hours of unit of finding time and difficulty, valve outlet is increased to two, side connects the Stainless Steel Flexible Hose of unit of finding time by pinching quick release flange, side (can connect vacuum gauge) for subsequent use, all nut joints all increase seal with O ring circle to ensure whole sealability of drawing valve.The utility model is by flange connecting assembly, standard bolt, standard wing nut, standard plain cushion, first flange, second flange, one O shape circle, 2nd O shape circle, first customization nut, valve body, the oblique mouth of valve body, second customization nut, 3rd O shape circle, three-flange, first axle bumper block, 3rd customization nut, pull bar, second axle bumper block, 4th customization nut, 4th O shape circle and the 5th O shape circle composition, is characterized in that: the first flange and the second flange pass through flange connecting assembly, standard bolt, standard wing nut, standard plain cushion is connected, and has an O shape circle between the first flange and the second flange, has the 2nd O shape circle and is connected by the first customization nut, the other end of valve body and the first axle bumper block between the second flange and one end of valve body, second axle bumper block is connected, at the first axle bumper block, the 4th O shape circle is had between second axle bumper block, 5th O shape circle, the 3rd customization nut, 4th customization nut is connected with valve body respectively, and pull bar inserts in valve body, valve body has two oblique mouths of valve body, has the 3rd O shape circle and be connected by the second customization nut between the oblique mouth of one of them valve body and three-flange.
Owing to adopting technique scheme, the advantage that the utility model has and good effect are: repeatedly vacuumize easy to loading and unloading, and add survey vacuum at alternate outlets, directly can observe degree of vacuum, the actual conditions vacuumized can be grasped very accurately, for individual device, the pumpdown time is adjusted in real time, can vacuum level requirements be met, also can avoid futile wait.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Figure of description is structural representation of the present utility model.
1. flange connecting assemblies, 2. standard bolt in figure, 3. standard wing nut, 4. standard plain cushion, 5. the first flange, 6. the second flange, 7. an O shape circle, 8. the 2nd O shape circle, 9. the first customization nut, 10. valve body, the oblique mouth of 11. valve body, 12. second customization nuts, 13. the 3rd O shape circles, 14. three-flanges, 15. first axle bumper blocks, 16. the 3rd customization nuts, 17. pull bars, 18. second axle bumper blocks, 19. the 4th customization nuts, 20. the 4th O shape circles, 21. the 5th O shape circles.
Embodiment
In Figure of description, first flange (5) and the second flange (6) are by flange connecting assembly (1), standard bolt (2), standard wing nut (3), standard plain cushion (4) is connected, O shape circle (7) is had between first flange (5) and the second flange (6), there is the 2nd O shape circle (8) between one end of second flange (6) and valve body (10) and be connected by the first customization nut (9), the other end of valve body (10) and the first axle bumper block (15), second axle bumper block (18) is connected, at the first axle bumper block (15), the 4th O shape circle (20) is had between second axle bumper block (18), 5th O shape circle (21), 3rd customization nut (16), 4th customization nut (19) is connected with valve body (10) respectively, pull bar (17) inserts in valve body (10), valve body (10) there are two oblique mouths of valve body (11), there is the 3rd O shape circle (13) between the oblique mouth of one of them valve body (11) and three-flange (14) and be connected by the second customization nut (12).
Claims (1)
1. vacuumizing of vacuum insulation deep cooling pressurized container draws a valve, by flange connecting assembly, standard bolt, standard wing nut, standard plain cushion, first flange, second flange, one O shape circle, 2nd O shape circle, first customization nut, valve body, the oblique mouth of valve body, second customization nut, 3rd O shape circle, three-flange, first axle bumper block, 3rd customization nut, pull bar, second axle bumper block, 4th customization nut, 4th O shape circle and the 5th O shape circle composition, is characterized in that: the first flange (5) and the second flange (6) are by flange connecting assembly (1), standard bolt (2), standard wing nut (3), standard plain cushion (4) is connected, O shape circle (7) is had between first flange (5) and the second flange (6), there is the 2nd O shape circle (8) between one end of second flange (6) and valve body (10) and be connected by the first customization nut (9), the other end of valve body (10) and the first axle bumper block (15), second axle bumper block (18) is connected, at the first axle bumper block (15), the 4th O shape circle (20) is had between second axle bumper block (18), 5th O shape circle (21), the 3rd customization nut (16), 4th customization nut (19) is connected with valve body (10) respectively, pull bar (17) inserts in valve body (10), valve body (10) there are two oblique mouths of valve body (11), have the 3rd O shape circle (13) between the oblique mouth of one of them valve body (11) and three-flange (14) and be connected by the second customization nut (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520058352.2U CN204437700U (en) | 2015-01-26 | 2015-01-26 | A kind of vacuumizing of vacuum insulation deep cooling pressurized container draws valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520058352.2U CN204437700U (en) | 2015-01-26 | 2015-01-26 | A kind of vacuumizing of vacuum insulation deep cooling pressurized container draws valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204437700U true CN204437700U (en) | 2015-07-01 |
Family
ID=53605567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520058352.2U Expired - Fee Related CN204437700U (en) | 2015-01-26 | 2015-01-26 | A kind of vacuumizing of vacuum insulation deep cooling pressurized container draws valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204437700U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641274A (en) * | 2016-10-29 | 2017-05-10 | 上海交通大学 | Self-tightening sealing valve with vacuumizing function |
-
2015
- 2015-01-26 CN CN201520058352.2U patent/CN204437700U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641274A (en) * | 2016-10-29 | 2017-05-10 | 上海交通大学 | Self-tightening sealing valve with vacuumizing function |
| CN106641274B (en) * | 2016-10-29 | 2019-09-20 | 上海交通大学 | The self-tightening sealing valve of vacuum-pumping |
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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: 20150701 Termination date: 20180126 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |