CN106404309B - Safety valve leakage test blanking cover - Google Patents
Safety valve leakage test blanking cover Download PDFInfo
- Publication number
- CN106404309B CN106404309B CN201611118719.0A CN201611118719A CN106404309B CN 106404309 B CN106404309 B CN 106404309B CN 201611118719 A CN201611118719 A CN 201611118719A CN 106404309 B CN106404309 B CN 106404309B
- Authority
- CN
- China
- Prior art keywords
- supporter
- safety valve
- gasket
- stomata
- cover board
- 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.)
- Expired - Fee Related
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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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Details Of Valves (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The present invention relates to a kind of safety valve, specifically a kind of safety valve leakage test blanking cover belongs to safety valve technical field of sealing technology.It includes cover board, gasket, elastic tensioning block, supporter and quick coupling, and support external surface connection gasket and elastic tensioning block, elastic tensioning block and gasket are distributed setting up and down；Supporter center is equipped with supporter stomata；The common connecting cover plate of supporter and gasket lower surface, cover plate central are equipped with cover board stomata, and cover board stomata one end connects quick coupling, and cover board stomata is connected to supporter stomata；Gasket is equipped with the reservoir of at least two circular ring shapes towards one side surface of elastic tensioning block.The present invention is light, rapid-assembling/disassembling and can have the function of leakage display；The efficiency that can be improved safety valve experiments of sealing performance guarantees the accuracy of test result.
Description
Technical field
The present invention relates to a kind of safety valve, specifically a kind of safety valve leakage test blanking cover belongs to safety valve sealing
Technical field.
Background technique
Safety valve is a kind of automatic valve, it a nominal number is not discharged using the power of medium itself by any external force
The fluid of amount is more than scheduled safety value to prevent pressure；After pressure recovery is normal, valve again row close and prevent medium after
Afterflow goes out.Safety valve is the important safety attachment of the bearing devices such as boiler, pressure vessel and pressure pipeline, Reliability of Microprocessor and
Performance quality is directly related to equipment and personal safety.Therefore, before new valve is installed to protected device, it is necessary to be verified, be made
Old valve in must be verified at least once every year.Safety valve is distinguished according to its interface form, there is flange form and two kinds of screw-type,
Its exhaust outlet connection type is respectively flange and internal screw thread.
Regulation in ZF001-2006 TSG " safety valve safety and technical supervision regulation " (hereinafter referred to as: regulation), safety valve
Experiments of sealing performance is one of the inspection project that must be carried out, it is therefore an objective to guarantee that safety valve is fine and close in the operating condition and not leak.It is right
When safety valve is sealed experiment it may first have to be blocked with intermediate with " closure plate " (the encryption packing) that internal diameter is 6mm exhaust pipe
Safety valve exhaust port imports the gas leaked out all in water, is emerged in water by (1 minute) in the measurement unit time
Number of bubbles compares the number of bubbles standard in GB/T12243-2005 " spring loaded safe valve " to judge that safety valve seals
Whether performance is qualified.For biggish valve, can also be determined with the gas volume of measurement leakage in 1 minute gone out.Therefore,
" closure plate " is an important component in safety valve sealing performance, it will not only block safe valve exhaust exhaust outlet, ensure it not
There can be any leakage, but also need to be applicable in the flange form and thread type safety valve of different size, size.
Currently, " closure plate " is generally using the blind flange processed just now, blind flange and safety valve for flange form safety valve
Add rubber gasket among exhaust outlet flange sealing surface, is fixedly connected by bolt.Thread type safety valve then generally uses
Rubber or cork etc. block exhaust outlet, in the middle insert row tracheae.Existing this " closure plate " there are probelem in two aspects: first is that behaviour
Make it is inconvenient for use, as heavy caliber safety valve " closure plate " needs to be fixed with many bolts, and " closure plate " weight of steel processing compared with
Greatly, installation and removal are time-consuming and laborious；Second is that can not quickly examine whether " closure plate " closure has leakage, once there is leakage, leakproofness
The detection of energy just will appear erroneous judgement.
Summary of the invention
It is an object of the present invention to overcome the above deficiencies, thus provide it is a kind of it is light, can rapid-assembling/disassembling and having let out
The safety valve leakage test blanking cover for leaking display function can be improved the efficiency of safety valve experiments of sealing performance, guarantee test result
Accuracy.
According to technical solution provided by the invention, safety valve leakage test blanking cover includes cover board, gasket, elastic tensioning
Block, supporter and quick coupling, it is characterized in that: support external surface connection gasket and elastic tensioning block, elastic tensioning block and
Gasket is distributed setting up and down；Supporter center is equipped with supporter stomata；The common connecting cover plate of supporter and gasket lower surface,
Cover plate central is equipped with cover board stomata, and cover board stomata one end connects quick coupling, and cover board stomata is connected to supporter stomata；Gasket
The reservoir of at least two circular ring shapes is equipped with towards one side surface of elastic tensioning block.
Further, supporter is cylindrical structure.
Further, cover board is made of lightweight transparent material.
Further, elastic tensioning block is made of elastic material.
Further, gasket is made of soft rubber material.
Further, the cross section of reservoir is V-arrangement.
Compared with the prior art the present invention has the advantage that
The invention has the advantages of simple structure, compactness and reasonable structure, light, rapid-assembling/disassembling and can have the function of leakage display；It can be improved
The efficiency of safety valve experiments of sealing performance guarantees the accuracy of test result；Since cover board makes using lightweight transparent material,
So that the operation of safety valve leakage test is become easier, easy, the working efficiency of safety valve leakage test can be improved.Meanwhile
Once the gas of safety valve escape is leaked out from conduit others sealing surface, energy quicklook is observed, to guarantee to test number
According to accuracy.
Detailed description of the invention
Fig. 1 is main view of the present invention.
Fig. 2 is the installation structure diagram of the invention.
Description of symbols: 1- cover board, 2- gasket, 3- elastic tensioning block, 4- supporter, 5- quick coupling, 6- liquid storage
Slot, 7- supporter stomata, 8- cover board stomata, A- safety valve exhaust port, B- exhaust pipe.
Specific embodiment
The present invention will be further described in conjunction with the embodiment in attached drawing below:
As shown in Figure 1 and 2, the invention mainly comprises cover board 1, gasket 2, elastic tensioning block 3, supporter 4 and quick couplings
5。
4 outer surface of supporter connects gasket 2 and elastic tensioning block 3, and elastic tensioning block 3 and the distribution of about 2 gasket are set
It sets.4 center of supporter is equipped with supporter stomata 7.
The supporter 4 is cylindrical structure, is made of lightweight, the preferable material of intensity, such as: organic glass or aluminium
Alloy.Supporter 4 primarily serves supporting role.
The common connecting cover plate 1 of supporter 4 and 2 lower surface of gasket, 1 center of cover board are equipped with cover board stomata 8, cover board stomata 8
One end connects quick coupling 5.The cover board stomata 8 is connected to supporter stomata 7.
The gasket 2 is made of elastomeric soft rubber material, and gasket 2 is towards 3 side table of elastic tensioning block
Face is equipped with the reservoir 6 of at least two circular ring shapes, and the cross section of reservoir 6 is V-arrangement.Reservoir 6 is for storing foaming liquid.
The cover board 1 is made of lightweight transparent material, such as: organic glass.Since cover board 1 uses lightweight transparent material
Material production, 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 is leaked out from conduit others sealing surface, energy quicklook is observed, to protect
Demonstrate,prove the accuracy of test data.
The elastic tensioning block 3 is made of elastic material, such as: rubber.Elastic tensioning block 3 fills in safe valve exhaust
Mouthful, make gasket against the outer surface of safety valve exhaust port flange sealing surface or screw thread exhaust outlet by elasticity and frictional force.
The quick coupling 5 can quickly connect exhaust pipe and sealing is kept not leak, and the gas leaked out is situated between by exhaust pipe
Matter export measures its leakage rate.
The course of work of the invention is: in use, foaming liquid is applied in the reservoir on gasket first, it will
Elastic tensioning block is filled in safety valve exhaust port, makes the gasket for having smeared 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 leaked out is exported, therefore leans on elastic expanding
The frictional force that the elasticity of tight block generates can provide enough sealing preload pressures.Then, exhaust pipe is inserted into quick coupling, and
Outer surface applies and spreads foaming liquid to examine whether it leaks.After the completion of above-mentioned installation preparation, start safety valve leakproofness
Energy test procedure can both measure the gas flow of exhaust pipe discharge to determine that the leakage rate of safety valve, control relevant criterion determine
Whether this safety valve sealing performance is qualified.During leakage test, gas leakage once passes through the sealing face leakage other than conduit
Out, foaming liquid shows leakage point for bubble is generated, and is sealed test again after allowing to readjust device, thus
Leaked gas is missed from the place except exhaust manifolds during excluding leakage test, to guarantee leakage test data
Objectivity and accuracy.
Claims (5)
1. a kind of safety valve leakage test blanking cover, including cover board (1), gasket (2), elastic tensioning block (3), supporter (4) and
Quick coupling (5), it is characterized in that: the supporter (4) is made of organic glass or aluminum alloy materials, supporter (4) appearance
Face connection gasket (2) and elastic tensioning block (3), elastic tensioning block (3) and gasket (2) are distributed setting up and down；Supporter (4)
Center is equipped with supporter stomata (7)；Supporter (4) and the common connecting cover plate in gasket (2) lower surface (1), cover board (1) center are set
Have cover board stomata (8), cover board stomata (8) one end connects quick coupling (5), and cover board stomata (8) is connected to supporter stomata (7)；
Gasket (2) is equipped with the reservoir (6) of at least two circular ring shapes towards (3) one side surface of elastic tensioning block, reservoir (6)
Cross section is V-arrangement.
2. safety valve leakage test blanking cover as described in claim 1, it is characterized in that: the supporter (4) is cylindrical structure.
3. safety valve leakage test blanking cover as described in claim 1, it is characterized in that: the cover board (1) uses lightweight transparent material
Material production.
4. safety valve leakage test blanking cover as described in claim 1, it is characterized in that: the elastic tensioning block (3) is using elasticity
Material production.
5. safety valve leakage test blanking cover as described in claim 1, it is characterized in that: the gasket (2) uses soft rubber
Material production.
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 CN106404309A (en) | 2017-02-15 |
| CN106404309B true 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) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004116650A (en) * | 2002-09-26 | 2004-04-15 | Nasco Fitting Kk | Pipe joint for inspection |
| JP4231835B2 (en) * | 2004-10-21 | 2009-03-04 | 東京瓦斯株式会社 | Gas pipe test hole component and test hole structure |
| CN101403657B (en) * | 2008-11-07 | 2011-11-16 | 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
Also Published As
| Publication number | Publication date |
|---|---|
| CN106404309A (en) | 2017-02-15 |
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| C06 | Publication | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190524 Termination date: 20191208 |