CN106404309A - Safety valve seal test blank cover - Google Patents
Safety valve seal test blank cover Download PDFInfo
- Publication number
- CN106404309A CN106404309A CN201611118719.0A CN201611118719A CN106404309A CN 106404309 A CN106404309 A CN 106404309A CN 201611118719 A CN201611118719 A CN 201611118719A CN 106404309 A CN106404309 A CN 106404309A
- Authority
- CN
- China
- Prior art keywords
- safety valve
- cover plate
- supporter
- sealing gasket
- cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/12—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing elastic covers or coatings, e.g. soapy water
- G01M3/14—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing elastic covers or coatings, e.g. soapy water for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
- G01M3/144—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing elastic covers or coatings, e.g. soapy water for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for valves
Abstract
The invention relates to a safety valve, and in particular relates to a safety valve seal test blank cover which belongs to the technical field of safety valve sealing. The safety valve seal test blank cover comprises a cover plate, a gasket, a resilient expanding block, a support body and a quick connector. The outer surface of the support body is connected with the gasket and the resilient expanding block. The resilient expanding block and the gasket are arranged up and down. A support body air hole is arranged in the center of the support body. The support body and the lower surface of the gasket are connected with the cover plate. A cover plate air hole is arranged in the center of the cover plate. One end of the cover plate air hole is connected with the quick connector. The cover plate air hole is communicated with the support body air hole. At least two annular reservoirs are arranged on the surface of one side, which faces the resilient expanding block, of the gasket. According to the invention, the safety valve seal test blank cover has the advantages of portability and fast installing and dismounting, and has a leakage display function; the efficiency of a safety valve sealing test is improved; and the correct rate of a test result is ensured.
Description
Technical field
The present invention relates to a kind of safety valve, specifically a kind of safety valve leakage test blanking cover, belong to safety valve sealing
Technical field.
Background technology
Safety valve is a kind of automatic valve, and it does not discharge a nominal number by any external force using the power of medium itself
The fluid of amount, to prevent pressure from exceeding predetermined safety value；After pressure recovers normal, close and stop medium from continuing again by row for valve
Afterflow goes out.Safety valve is the important safety annex of the bearing devices such as boiler, pressure vessel and pressure pipeline, its Reliability of Microprocessor and
Performance quality is directly connected to equipment and personal safety.Therefore, new valve is installed to, is made it is necessary to verify by before protection equipment
With in old valve must at least verify once every year.Safety valve is distinguished according to its interface shape, has flange form and two kinds of screw-type,
Its exhaust outlet connected mode is respectively flange and internal thread.
TSG ZF001—2006《Safety valve safety and technical supervision code》（Hereinafter referred to as：Code）Middle regulation, safety valve
Experiments of sealing performance is one of the inspection project that must carry out it is therefore an objective to ensure that safety valve descends densification not leak in working order.Right
Safety valve carries out during sealing experiment it may first have to " closure plate " that be 6mm blast pipe with internal diameter with centre（Encryption packing）Block
Safety valve exhaust port, makes the gas leaking out all import in water, by the measurement unit time（1 minute）Water is emerged
Number of bubbles, comparison GB/T12243-2005《Spring loaded safe valve》In number of bubbles standard come to judge safety valve seal
Whether performance is qualified.For larger valve it is also possible to be judged with the gas volume going out of measurement leakage in 1 minute.Therefore,
" closure plate " is one of safety valve sealing property vitals, and it not only will be blocked safe valve exhaust exhaust outlet, guarantee it not
Can there is any leakage, and also need to be suitable for different size, the flange form of size and thread type safety valve.
Currently for flange form safety valve, " closure plate " is generally individually using the blind flange just now processed, blind flange and safety valve
Add rubber gasket in the middle of exhaust outlet flange sealing surface, be fixedly connected by bolt.Thread type safety valve then typically adopts
Rubber or cork etc. block exhaust outlet, central insert row tracheae.There is both sides problem in existing this " closure plate "：One is behaviour
Make using inconvenience, such as heavy caliber safety valve " closure plate " needs to be fixed with a lot bolts, and " closure plate " weight of steel processing is relatively
Greatly, installing is wasted time and energy with dismounting；Two is cannot quickly to check whether " closure plate " closure has leakage, once there being leakage, sealing
The detection of energy arises that erroneous judgement.
Content of the invention
It is an object of the invention to overcoming above-mentioned weak point, thus provide a kind of light, can let out rapid-assembling/disassembling and having
The safety valve leakage test blanking cover of leakage display function, it is possible to increase the efficiency of safety valve experiments of sealing performance is it is ensured that test result
Accuracy.
The technical scheme providing according to the present invention, safety valve leakage test blanking cover includes cover plate, sealing gasket, elastic tensioning
Block, supporter and snap joint, is characterized in that：Support external surface to connect sealing gasket and elastic tensioning block, elastic tensioning block and
Sealing gasket is distributed setting up and down；Supporter center is provided with supporter pore；Supporter and the common connecting cover plate of sealing gasket lower surface,
Cover plate central is provided with cover plate pore, and cover plate pore one end connects snap joint, and cover plate pore is connected with supporter pore；Sealing gasket
It is provided with the reservoir of at least two annulars towards elastic tensioning block one side surface.
Further, supporter is cylindrical structure.
Further, cover plate adopts lightweight transparent material to make.
Further, elastic tensioning block adopts elastomeric material to make.
Further, sealing gasket adopts soft rubber material to make.
Further, the cross section of reservoir is V-arrangement.
Compared with the prior art the present invention has advantages below：
Present configuration is simple, compact, reasonable, light, can rapid-assembling/disassembling and have leakage display function；Safety can be improved
The efficiency of valve experiments of sealing performance is it is ensured that the accuracy of test result；Make because cover plate employs lightweight transparent material, make peace
The operation of full valve leakage test becomes easier, easy, can improve the operating efficiency of safety valve leakage test.Meanwhile, once
The gas of safety valve escape spills from the other sealing surface of conduit, can the observing, thus ensureing test data of quicklook
Accuracy.
Brief description
Fig. 1 is front view of the present invention.
Fig. 2 is mounting structure schematic diagram of the present invention.
Description of reference numerals：1- cover plate, 2- sealing gasket, 3- elastic tensioning block, 4- supporter, 5- snap joint, 6- liquid storage
Groove, 7- supporter pore, 8- cover plate pore, A- safety valve exhaust port, B- blast pipe.
Specific embodiment
The embodiment combining in accompanying drawing is further described by the present invention below：
As shown in Figure 1 and 2, the invention mainly comprises cover plate 1, sealing gasket 2, elastic tensioning block 3, supporter 4 and snap joint 5.
Supporter 4 outer surface connects sealing gasket 2 and elastic tensioning block 3, and elastic tensioning block 3 and sealing gasket are distributed about 2 and set
Put.Supporter 4 center is provided with supporter pore 7.
Described supporter 4 is cylindrical structure, is made using lightweight, the preferable material of intensity, for example：Lucite or aluminium
Alloy.Supporter 4 primarily serves supporting role.
Supporter 4 and the common connecting cover plate of sealing gasket 2 lower surface 1, cover plate 1 center is provided with cover plate pore 8, cover plate pore 8
One end connects snap joint 5.Described cover plate pore 8 is connected with supporter pore 7.
Described sealing gasket 2 adopts elastomeric soft rubber material to make, and sealing gasket 2 is towards elastic tensioning block 3 side table
Face is provided with the reservoir 6 of at least two annulars, and the cross section of reservoir 6 is V-arrangement.Reservoir 6 is used for storing foaming liquid.
Described cover plate 1 adopts lightweight transparent material to make, for example：Lucite.Because cover plate 1 employs lightweight transparent material
Material makes, and makes the operation of safety valve leakage test become easier, easy, can improve the work effect of safety valve leakage test
Rate.Meanwhile, once the gas of safety valve escape spills from the other sealing surface of conduit, can the observing, thus protecting of quicklook
The accuracy of card test data.
Described elastic tensioning block 3 adopts elastomeric material to make, for example：Rubber.Elastic tensioning block 3 fills in safe valve exhaust
Mouthful, rely on elasticity and frictional force to make sealing gasket against the outer surface of safety valve exhaust port flange sealing surface or screw thread exhaust outlet.
Described snap joint 5 can quickly connect blast pipe and keep sealing not leak, and the gas that blast pipe will leak out out is situated between
Matter derives and measures its leakage rate.
The course of work of the present invention is：During use, first foaming liquid is applied in the reservoir on sealing gasket, will
Elastic tensioning block is filled in safety valve exhaust port, makes to have smeared the sealing gasket of foaming liquid against safety valve exhaust port flange seal
Face or the outer surface of screw thread exhaust outlet.Due to safety valve escape amount very little, and the gas leaking out is exported, and therefore leans on elastic expanding
The frictional force that the elasticity of tight block produces is provided that enough sealing preload pressures.Then, blast pipe is inserted snap joint, and
Outer surface applies and spreads foaming liquid to check whether it leaks.After the completion of above-mentioned installation preparation, start safety valve sealing
Can test procedure, both can measure the leakage rate to determine safety valve for the gas flow of blast pipe discharge, comparison relevant criterion determines
Whether this safety valve sealing property is qualified.During leakage test, gas leakage is upon the sealing face leakage beyond conduit
Out, foaming liquid shows producing bubble leakage point and carries out leakage test so that can readjust again after device, thus
During exclusion leakage test, place outside exhaust manifolds for the gas of leakage is missed, thus ensureing leakage test data
Objectivity and accuracy.
Claims (6)
1. a kind of safety valve leakage test blanking cover, including cover plate（1）, sealing gasket（2）, elastic tensioning block（3）, supporter（4）With
Snap joint（5）, it is characterized in that：Supporter（4）Outer surface connects sealing gasket（2）With elastic tensioning block（3）, elastic tensioning block
（3）And sealing gasket（2）Distribution setting up and down；Supporter（4）Center is provided with supporter pore（7）；Supporter（4）And sealing gasket
（2）The common connecting cover plate of lower surface（1）, cover plate（1）Center is provided with cover plate pore（8）, cover plate pore（8）One end connection quickly connects
Head（5）, cover plate pore（8）With supporter pore（7）Connection；Sealing gasket（2）Towards elastic tensioning block（3）One side surface is provided with
The reservoir of at least two annulars（6）.
2. safety valve leakage test blanking cover as claimed in claim 1, is characterized in that：Described supporter（4）For cylindrical structure.
3. safety valve leakage test blanking cover as claimed in claim 1, is characterized in that：Described cover plate（1）Using lightweight transparent material
Material makes.
4. safety valve leakage test blanking cover as claimed in claim 1, is characterized in that：Described elastic tensioning block（3）Using elasticity
Material makes.
5. safety valve leakage test blanking cover as claimed in claim 1, is characterized in that：Described sealing gasket（2）Using soft rubber
Material makes.
6. safety valve leakage test blanking cover as claimed in claim 1, is characterized in that：Described reservoir（6）Cross section be V
Shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611118719.0A CN106404309B (en) | 2016-12-08 | 2016-12-08 | Safety valve leakage test blanking cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611118719.0A CN106404309B (en) | 2016-12-08 | 2016-12-08 | Safety valve leakage test blanking cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106404309A true CN106404309A (en) | 2017-02-15 |
| CN106404309B CN106404309B (en) | 2019-05-24 |
Family
ID=58085112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611118719.0A Expired - Fee Related CN106404309B (en) | 2016-12-08 | 2016-12-08 | Safety valve leakage test blanking cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106404309B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111735578A (en) * | 2020-08-07 | 2020-10-02 | 四川航天长征装备制造有限公司 | Safety valve air tightness test tool and test method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004116650A (en) * | 2002-09-26 | 2004-04-15 | Nasco Fitting Kk | Pipe joint for inspection |
| JP2006118955A (en) * | 2004-10-21 | 2006-05-11 | Tokyo Gas Co Ltd | Test hole constitutional member and test hole structure of gas pipe |
| CN101403657A (en) * | 2008-11-07 | 2009-04-08 | 南京市锅炉压力容器检验研究院 | Calibration apparatus and method for ultra-high pressure safety valve |
| CN201688952U (en) * | 2010-05-31 | 2010-12-29 | 龙岩伍旗力金机械有限公司 | Axle housing air tightness tester |
| CN102866008A (en) * | 2012-09-26 | 2013-01-09 | 南京市锅炉压力容器检验研究所 | Low-redundancy high-reliability intelligent checking device for safety valves and checking method utilizing checking device |
| CN105606316A (en) * | 2016-03-11 | 2016-05-25 | 南京工业大学 | Bubble automatic counting and bubble leakage speed testing device for bubble method valve leakage test |
| CN205538113U (en) * | 2016-04-25 | 2016-08-31 | 北京市公用事业科学研究所 | Pipe network prefabricated direct -burried insulating tube in cities and towns connects air -tight test device and testing system |
| CN206311278U (en) * | 2016-12-08 | 2017-07-07 | 江南大学 | Safety valve leakage test blanking cover |
-
2016
- 2016-12-08 CN CN201611118719.0A patent/CN106404309B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004116650A (en) * | 2002-09-26 | 2004-04-15 | Nasco Fitting Kk | Pipe joint for inspection |
| JP2006118955A (en) * | 2004-10-21 | 2006-05-11 | Tokyo Gas Co Ltd | Test hole constitutional member and test hole structure of gas pipe |
| CN101403657A (en) * | 2008-11-07 | 2009-04-08 | 南京市锅炉压力容器检验研究院 | Calibration apparatus and method for ultra-high pressure safety valve |
| CN201688952U (en) * | 2010-05-31 | 2010-12-29 | 龙岩伍旗力金机械有限公司 | Axle housing air tightness tester |
| CN102866008A (en) * | 2012-09-26 | 2013-01-09 | 南京市锅炉压力容器检验研究所 | Low-redundancy high-reliability intelligent checking device for safety valves and checking method utilizing checking device |
| CN105606316A (en) * | 2016-03-11 | 2016-05-25 | 南京工业大学 | Bubble automatic counting and bubble leakage speed testing device for bubble method valve leakage test |
| CN205538113U (en) * | 2016-04-25 | 2016-08-31 | 北京市公用事业科学研究所 | Pipe network prefabricated direct -burried insulating tube in cities and towns connects air -tight test device and testing system |
| CN206311278U (en) * | 2016-12-08 | 2017-07-07 | 江南大学 | Safety valve leakage test blanking cover |
Non-Patent Citations (1)
| Title |
|---|
| "《TSG特种设备安全技术规范》" * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111735578A (en) * | 2020-08-07 | 2020-10-02 | 四川航天长征装备制造有限公司 | Safety valve air tightness test tool and test method |
| CN111735578B (en) * | 2020-08-07 | 2020-11-17 | 四川航天长征装备制造有限公司 | Safety valve air tightness test tool and test method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106404309B (en) | 2019-05-24 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190524 Termination date: 20191208 |