CN201327434Y - On-line experimental unit for portable welding check valve - Google Patents
On-line experimental unit for portable welding check valve Download PDFInfo
- Publication number
- CN201327434Y CN201327434Y CNU2008201791984U CN200820179198U CN201327434Y CN 201327434 Y CN201327434 Y CN 201327434Y CN U2008201791984 U CNU2008201791984 U CN U2008201791984U CN 200820179198 U CN200820179198 U CN 200820179198U CN 201327434 Y CN201327434 Y CN 201327434Y
- Authority
- CN
- China
- Prior art keywords
- test
- check valve
- valve
- air
- air leakage
- 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 - Lifetime
Links
Images
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
The utility model relates to an encapsulation test unit, in particular to an on-line experimental unit for portable welding check valve, comprising a test valve bonnet equipped with an encapsulation test port and an air inlet port at an opening of a check valve, an air leakage detecting instrument connecting with the test valve bonnet through the encapsulation test port, and an inflatable closure plug mounted at an inlet end of the check valve. The test valve bonnet is tightly connected with the valve body of the check valve, and the inflatable closure plug is fixed at the inlet end of the check valve through a bracket. Employing compressed air or nitrogen as test medium, the on-line experimental unit for portable welding check valve can effectively avoid environmental pollution; the inflatable closure can quickly seal the inlet end of the check valve to increase seal reliability; and the test valve bonnet, the inflatable closure plug and the air leakage detecting instrument, all designed as three divided bodies, are simple and light.
Description
Technical field
The utility model relates to a kind of impermeability test device, is specifically related to the online test unit of a kind of portable welded check valve.
Background technology
Detect test if welded check valve carries out sealing under the off-line pressure state, valve need be broken away from from system pipeline.Because the online test unit of the available technology adopting hydraulic testing is bulky, be unfavorable for transportation, and pollute through the test water in the radiation pipeline when detecting, bring the protection risk.
At present, in nuclear power station and chemical industry power industry, carry out the online impermeability test of welded check valve and have certain difficulty.For example, utilize look seal inspection method, existence brings erroneous judgement because of examinant's experience gimmick is different.And for example, utilize the online test unit of the hydraulic testing, utilize the pressure decline method test philosophy, test number needs further estimation, and can't directly show.The shortcoming of prior art is that test for leaks rate score reliability is lower; if be used for nuclear power main system pressure check valve; can bring the main system slip to give to judge in the shutdown shutdown maintenance period; it utilizes water to produce a large amount of contaminant water again as test(ing) medium; and rig for testing complex structure, bulky, can't transport flexibly.
Summary of the invention
It is a kind of simple in structure, convenient and practical that the purpose of this utility model is to provide, and can avoid the online test unit of portable welded check valve that pollutes.
The technical scheme that realizes the utility model purpose is as follows:
The online test unit of a kind of portable welded check valve, the air leakage detector that comprises the test valve gap that has leakage test mouth and air intake opening that is arranged on the check valve opening, is connected with the test valve gap by the leakage test mouth, and the inflatable seal plug that is installed in the entrance point of non-return valve, described test valve gap and check valve body are tightly connected, and the inflatable seal plug is fixedly installed in the entrance point of non-return valve by bracing frame.
The online test unit of aforesaid portable welded check valve, air leakage detector are mass rate formula air leakage detector.
The online test unit of aforesaid portable welded check valve, the air leakage detector adopts pressure gas.
The online test unit of aforesaid portable welded check valve, pressure gas is air or inert gas.
Effect of the present utility model is: adopt pressurized air (as air, nitrogen) as test(ing) medium, can effectively avoid the pollution to environment; Inflatable seal plug 3 can seal the check valve inlet end fast, improves sealing reliability; Test valve gap, inflatable seal plug, air leakage detector three adopt the split design, and be simply light; Directly adopt the flow equilibrium method to utilize mass rate formula air leakage detector 7 that its slip is tested, direct determination data, directly file printing.
Description of drawings
Fig. 1 is the utility model example structure synoptic diagram.
Among the figure: 1. test valve gap; 2. air bag; 3. inflatable seal plug; 4. bracing frame; 5. valve plate; 6. check valve body; 7. air leakage detector; 8. leakage test mouth; 9. air intake opening.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
As shown in Figure 1, the online test unit of a kind of portable welded check valve, the air leakage detector 7 that comprises the test valve gap 1 that has leakage test mouth 8 and air intake opening 9 that is arranged on the check valve opening, is connected with test valve gap 1 by leakage test mouth 8, and the inflatable seal plug 3 that is installed in the entrance point of non-return valve, test valve gap 1 is tightly connected by gasket seal and check valve body, and inflatable seal plug 3 is fixedly installed in the entrance point of non-return valve.Air leakage detector 7 is mass rate formula air leakage detectors, adopts compression gases such as air, nitrogen as test(ing) medium.Inflatable seal plug 3 comprises obstruction support and air bag, and stopping up support is that axis has screw, circumferentially has the round platform of arc groove, is provided with air bag in the annular groove that the obstruction support forms.
The concrete use-pattern of the utility model is as follows: with the entrance point pipe interior of inflatable seal plug 3 integral installations in check valve body 6, and utilize bracing frame 4 to fixedly mount by bolt; Air bag in the inflatable seal plug is inflated, and kept its sealing.Valve plate 5 is a valve internal spare, is used for the sealing of non-return valve.Installation test valve gap 1 is by the valve bonnet seal of gasket seal warranty test; Charge into test gas to test pressure by air intake opening 9 to detected non-return valve inside; Mass rate formula air leakage detector 7 is by leakage test mouth 8 image data and directly read the valve leak rate at display screen, and test figure is directly stored and printed.
The bracing frame 4 of test valve gap 1, inflatable seal plug 3 is selected the extra super duralumin alloy material for use, can alleviate the weight of testing equipment.For the ease of loading and unloading, each parts can be designed to the assembling of the check valve seal test unit of swing type.
This device be used for welded check valve on system pipeline at thread test, the test that can avoid the pollution that brings as test(ing) medium with water, application traffic replenishment to carry out slip has characteristics such as video data is direct, quick, accurate.This device also can be used for the similar structures welded check valve at thread test.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.If these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.
Claims (4)
1. online test unit of portable welded check valve, it is characterized in that: the air leakage detector (7) that comprises the test valve gap (1) that has leakage test mouth (8) and air intake opening (9) that is arranged on the check valve opening, is connected with test valve gap (1) by leakage test mouth (8), and the inflatable seal plug (3) that is installed in the entrance point of non-return valve, described test valve gap (1) is tightly connected with check valve body, and inflatable seal plug (3) is fixedly installed in the entrance point of non-return valve by bracing frame (4).
2. the online test unit of portable welded check valve as claimed in claim 1 is characterized in that: described air leakage detector (7) is a mass rate formula air leakage detector.
3. the online test unit of portable welded check valve as claimed in claim 1 or 2 is characterized in that: described air leakage detector (7) adopts pressure gas.
4. the online test unit of portable welded check valve as claimed in claim 3 is characterized in that: described pressure gas is air or inert gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201791984U CN201327434Y (en) | 2008-11-27 | 2008-11-27 | On-line experimental unit for portable welding check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201791984U CN201327434Y (en) | 2008-11-27 | 2008-11-27 | On-line experimental unit for portable welding check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201327434Y true CN201327434Y (en) | 2009-10-14 |
Family
ID=41179406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201791984U Expired - Lifetime CN201327434Y (en) | 2008-11-27 | 2008-11-27 | On-line experimental unit for portable welding check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201327434Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858817A (en) * | 2010-06-10 | 2010-10-13 | 北京冶核技术发展有限责任公司 | Equal-pressure virtual isolation check valve sealing test method and equipment |
| CN106298243A (en) * | 2016-09-30 | 2017-01-04 | 铜陵其利电子材料有限公司 | A kind of capacitor core body inflation dust plug |
| CN106404550A (en) * | 2016-11-12 | 2017-02-15 | 山西江淮重工有限责任公司 | Valve body strength test fixture and test method with inner cavity segment pressure bearing |
| CN104535271B (en) * | 2014-12-18 | 2017-03-22 | 杭州平泽科技有限公司 | Sealing performance detecting device of single-way valve |
| CN112129471A (en) * | 2020-09-04 | 2020-12-25 | 中核核电运行管理有限公司 | Sealing test device for check valve |
-
2008
- 2008-11-27 CN CNU2008201791984U patent/CN201327434Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858817A (en) * | 2010-06-10 | 2010-10-13 | 北京冶核技术发展有限责任公司 | Equal-pressure virtual isolation check valve sealing test method and equipment |
| CN101858817B (en) * | 2010-06-10 | 2012-06-27 | 北京冶核技术发展有限责任公司 | Equal-pressure virtual isolation check valve sealing test method and equipment |
| CN104535271B (en) * | 2014-12-18 | 2017-03-22 | 杭州平泽科技有限公司 | Sealing performance detecting device of single-way valve |
| CN106298243A (en) * | 2016-09-30 | 2017-01-04 | 铜陵其利电子材料有限公司 | A kind of capacitor core body inflation dust plug |
| CN106298243B (en) * | 2016-09-30 | 2018-09-14 | 铜陵其利电子材料有限公司 | A kind of capacitor core body inflation dust plug |
| CN106404550A (en) * | 2016-11-12 | 2017-02-15 | 山西江淮重工有限责任公司 | Valve body strength test fixture and test method with inner cavity segment pressure bearing |
| CN106404550B (en) * | 2016-11-12 | 2023-05-26 | 山西江淮重工有限责任公司 | Valve body strength test tool and test method for sectional bearing of inner cavity |
| CN112129471A (en) * | 2020-09-04 | 2020-12-25 | 中核核电运行管理有限公司 | Sealing test device for check valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201327434Y (en) | On-line experimental unit for portable welding check valve | |
| CN202547885U (en) | Fluid medium seal leakage detection device | |
| CN106525354A (en) | Leak detection system and method for gas pipeline bus housing | |
| CN103994863A (en) | Air-tight sealing detection method of threaded connection of oil casing tubes | |
| CN106704833A (en) | Gas pipe blockage detection device and method | |
| CN202711724U (en) | Gas-pressure leakage detection and test device for fuel rod after irradiation in hot chamber | |
| CN206648790U (en) | A kind of calibrating installation of airtight leak detector | |
| CN102445299A (en) | Closed fluid-resistance comprehensive tester for oil gas recovery system of gas station | |
| CN201021913Y (en) | Pipe or container leakage checking device | |
| CN112556934A (en) | Real-time detection device and method for leakage amount of bottled high-pressure heptafluoropropane fire extinguishing agent | |
| CN110542017B (en) | Pressure detection device for hydrogenation station | |
| CN205562351U (en) | Multiplex condition retractable pipeline corrosion monitor | |
| CN1103948A (en) | Method for detecting the leakage in liquid conveying pipe or storage tank | |
| CN205861289U (en) | Blast furnace cooling device leakage detection apparatus | |
| CN208171542U (en) | A kind of movable oil pipe leak detector | |
| CN208568214U (en) | A kind of vacuum type leak detection apparatus and system | |
| CN206398376U (en) | A kind of Gas Pipe closure detection means and Gas Pipe closure detection structure | |
| CN220705771U (en) | Gas residual pressure turbine power generation device | |
| CN214583867U (en) | Air tightness detection device for air supply system | |
| CN219830224U (en) | Gas leakage detection device | |
| CN210442037U (en) | Valve leakage test testing device | |
| CN218268532U (en) | Liquefied natural gas unloading system with intelligent monitoring function | |
| CN213985567U (en) | 'helium cover method' long distance pipeline leakage point investigation positioning device | |
| CN218444322U (en) | Gas pipeline air tightness detection equipment | |
| CN221004748U (en) | Early warning device with pipeline pressure detects |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091014 |
|
| CX01 | Expiry of patent term |