CN202532173U - Multifunctional explosion-proof safety stopper for low-temperature gas cylinder - Google Patents
Multifunctional explosion-proof safety stopper for low-temperature gas cylinder Download PDFInfo
- Publication number
- CN202532173U CN202532173U CN2012200915543U CN201220091554U CN202532173U CN 202532173 U CN202532173 U CN 202532173U CN 2012200915543 U CN2012200915543 U CN 2012200915543U CN 201220091554 U CN201220091554 U CN 201220091554U CN 202532173 U CN202532173 U CN 202532173U
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- stopper
- explosion
- interlayer
- gas cylinder
- temperature gas
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- Expired - Fee Related
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Abstract
The utility model relates to a multifunctional explosion-proof safety stopper for a low-temperature gas cylinder, which mainly comprises a stopper body, a stopper base and rubber sealing rings, wherein the stopper body is arranged in the stopper base by the rubber sealing rings; a vent hole is formed at the bottom of the stopper base; the stopper base is communicated with a vacuum orifice of the low-temperature gas cylinder and directly welded with the vacuum orifice into a whole; and a stopper removal screw hole is formed in the stopper body. When an interlayer is required to be vacuumized highly and the vacuum degree of the interlayer is required to be detected, the stopper body is pulled out of the stopper base, and the troubles that an opening is required to be cut into the existing low-temperature gas cylinder and then sealed by welding are avoided. The stopper further has an explosion-proof function; as the interlayer has cold leakage due to external mechanical damages, the stopper body flies off the stopper base automatically to release pressure after being pressed, so as to play the roles of an explosion-proof sheet. The multifunctional explosion-proof safety stopper is reasonable in structure and convenient in use, can rapidly vacuumize the interlayer highly, detect the vacuum degree and substitute the explosion-proof sheet for use and is suitable for the low-temperature gas cylinder.
Description
Technical field
The utility model relates to a kind of safety installations of low temperature cylinder, particularly a kind of degree of vacuum and the multifunctional safe explosion-proof plug that vacuumizes and can play the burst disk effect that can help in its interlayer of results of regular determination.
Background technique
Low temperature cylinder belongs to second generation packaging container, is to grow up in nearly ten years in China, and low temperature cylinder has advantages such as volume is little, in light weight, carrying is flexible, is widely used in all kinds of liquefied gas at low temp such as splendid attire nitrogen, oxygen, hydrogen, helium, rock gas.And adopt the best a kind of multilayer heat insulation form of present insulation effect, this heat insulating construction to require the degree of vacuum of thermal insulating layer will reach 1 * 10
-2Gas molecule heat conduction between the above ability of Pa eliminating layer, but, have only the condition of high vacuum degree of the acquisition and the container interlayer that keep-ups pressure for multilayer heat insulation, just can reach good adiabatic purpose.The low temperature cylinder manufactory that present China has is employed in and loads onto two duct devices on the interlayer place shell: adorn burst disk on (1) outside interlayer; (2) to extracting the mouth of taking out of layer vacuum, treat the degree of vacuum 1 * 10 that layer vacuum is obtained to be needed
-2What i.e. welding at once vacuumized more than the Pa seals weldering extremely; According to China's " gas cylinder safely supervision rules " regulation, vehicle-mounted gas cylinder, low temperature cylinder must be checked once in per 3 years, so when the third pary certification low temperature cylinder; All to cut the openning that the dead interlayer of weldering vacuumizes open; Survey in its interlayer degree of vacuum and to degree of vacuum in the undesirable interlayer, also will be to its pumping high vacuum again, make it reach after the standard solder up again.
Summary of the invention
The purpose of the utility model be for solve above-mentioned existing low temperature cylinder exist cut open earlier eloquence can to the interlayer pumping high vacuum with detect after the degree of vacuum major defect of solder up again; Provide a kind of rational in infrastructure, easy to use, can be rapidly to the interlayer pumping high vacuum with detect degree of vacuum, can replace the multifunctional safe explosion-proof plug of the low temperature cylinder that burst disk uses again.
The multifunctional safe explosion-proof plug of the low temperature cylinder of the utility model; Its structure mainly is made up of cock body, obturating plug and rubber seal; Said cock body is in rubber seal is contained in obturating plug; Obturating plug bottom is provided with that vent communicates with the vacuum orifice of low temperature cylinder and is direct integrally welded with it, and cock body is provided with the screw of drawing the cork.
The sectional area of said cock body equals the safety relief area of burst disk.
The multifunctional safe explosion-proof plug of the low temperature cylinder of the utility model; Owing between cock body and obturating plug, be provided with rubber seal; Negative pressure in the interlayer of low temperature cylinder is bigger, and promptly to hold the suction of cock body also just big more; The effect of the sealing of rubber seal can guarantee that the interior negative pressure of interlayer of low temperature cylinder is leaked and thermal insulation not at all, plays the effect identical with solder up.When needs to the interlayer pumping high vacuum when detecting degree of vacuum, only need cock body pulled up in the obturating plug and get final product, thoroughly solved the trouble that existing low temperature cylinder needs often to cut opening and solder up.This plug also has explosion prevention function simultaneously because when interlayer owing to exterior mechanical damage is run when cold, after the pressure-bearing, cock body can fly out and pressure release from obturating plug automatically, plays the effect of burst disk.Be a kind of rational in infrastructure, easy to use, can be rapidly to the interlayer pumping high vacuum with detect degree of vacuum, the multifunctional safe explosion-proof plug that can replace burst disk to use again is adapted at installing and using on the low temperature cylinder.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model.
Among the figure 1 is the screw of drawing the cork, the 2nd, and cock body, the 3rd, obturating plug, the 4th, rubber seal, the 5th, vent.
Embodiment
A kind of structural representation among the nonrestrictive embodiment who discloses the utility model of accompanying drawing further describes as follows in conjunction with accompanying drawing;
The multifunctional safe explosion-proof plug of the low temperature cylinder of the utility model; Its structure mainly is made up of cock body 2, obturating plug 3 and rubber seal 4, and said cock body 2 is an example with 3 road rubber seal among the figure in rubber seal 4 is contained in obturating plug 3; Top twice rubber seal can be contained in the groove of cock body 2; 1 following road rubber seal is contained between cock body 2 bottoms and the obturating plug 3, can play good seal action, guarantees not leak and thermal insulation.Obturating plug bottom is provided with that vent 5 communicates with the vacuum orifice of low temperature cylinder (not drawing among the figure) and is direct integrally welded with it, and cock body 2 is provided with the screw 1 of drawing the cork.Available screw rod of joining in addition is screwed in the screw 1 of drawing the cork and cock body 2 is easily pulled up in obturating plug 3.Simultaneously, only need the sectional area of cock body 2 to equal the safety relief area of burst disk, can contemporaryly use for existing burst disk.
Claims (2)
1. the multifunctional safe explosion-proof plug of a low temperature cylinder; It is characterized in that comprising cock body, obturating plug and rubber seal; Said cock body is in rubber seal is contained in obturating plug; Obturating plug bottom is provided with that vent communicates with the vacuum orifice of low temperature cylinder and is direct integrally welded with it, and cock body is provided with the screw of drawing the cork.
2. the multifunctional safe explosion-proof plug of low temperature cylinder as claimed in claim 1 is characterized in that the sectional area of cock body equals the safety relief area of burst disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200915543U CN202532173U (en) | 2012-03-13 | 2012-03-13 | Multifunctional explosion-proof safety stopper for low-temperature gas cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200915543U CN202532173U (en) | 2012-03-13 | 2012-03-13 | Multifunctional explosion-proof safety stopper for low-temperature gas cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202532173U true CN202532173U (en) | 2012-11-14 |
Family
ID=47133359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200915543U Expired - Fee Related CN202532173U (en) | 2012-03-13 | 2012-03-13 | Multifunctional explosion-proof safety stopper for low-temperature gas cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202532173U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234115A (en) * | 2013-04-26 | 2013-08-07 | 张家港韩中深冷科技有限公司 | Explosion-proof hole sealing device of low-temperature mobile liquid storage equipment |
-
2012
- 2012-03-13 CN CN2012200915543U patent/CN202532173U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234115A (en) * | 2013-04-26 | 2013-08-07 | 张家港韩中深冷科技有限公司 | Explosion-proof hole sealing device of low-temperature mobile liquid storage equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SPECIAL EQUIPMENT SAFETY SUPERCISION INSPECTION IN Free format text: FORMER OWNER: JIANGSU SPECIAL EQUIPMENT SAFETY SUPERVISION + INSPECTION INSTITUTE CHANGZHOU BRANCH INSTITUTE Effective date: 20150518 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150518 Address after: 213016 No. 51 middle Longjiang Road, Jiangsu, Changzhou Patentee after: Jiangsu Special Equipment Vessel Supervisory Institute Address before: 213016 No. 51 middle Longjiang Road, Jiangsu, Changzhou Patentee before: Jiangsu Special Equipment Safety Supervision & Inspection Institute Changzhou Branch Institute |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121114 Termination date: 20180313 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |