CN106989871A - Valve pressure test device - Google Patents
Valve pressure test device Download PDFInfo
- Publication number
- CN106989871A CN106989871A CN201710336607.0A CN201710336607A CN106989871A CN 106989871 A CN106989871 A CN 106989871A CN 201710336607 A CN201710336607 A CN 201710336607A CN 106989871 A CN106989871 A CN 106989871A
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- China
- Prior art keywords
- piston
- valve
- test
- pressure testing
- ing
- 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.)
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Classifications
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- 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
- G01M3/022—Test plugs for closing off the end of a pipe
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
Abstract
The invention discloses a kind of Valve pressure test device, including the frame being made up of base, first support and second support.Guide rail is connected between first support and second support, slide drive device manipulates slide and moved along guide rail, first support and slide relative position are respectively arranged with valve and clamp pressure testing device, the valve, which clamps pressure testing device, includes cylinder body, piston and PRESSURE TESTING BLIND FLANGE, cylinder body is fixedly connected on the first frame or slide, piston is installed in cylinder body, and PRESSURE TESTING BLIND FLANGE is fixedly connected with the piston；Cylinder body is provided with test(ing) medium import, PRESSURE TESTING BLIND FLANGE is provided with test(ing) medium outlet, piston is provided with the passage for connecting the test(ing) medium import and test(ing) medium outlet, it can be exported again by the passage on piston into test(ing) medium while test(ing) medium enters cylinder body pusher piston during pressure testing, then it is filled with experiment valve, clamping, sealing and pressure testing are just realized merely with the pressure of test(ing) medium using this structure, without optional equipment hydraulic cylinder and hydraulic station.
Description
Technical field
The present invention relates to a kind of Valve pressure test device, more particularly to a kind of valve examination for integrating clamping, sealing and pressure testing
Press equipment.
Background technology
In the prior art, the pressure and the sealing of valve end face and valve internal that can be born for inspection valve, most
Conventional method is exactly to carry out pressure test to valve.Traditional test mode is directed to the valve of different model, because of valve size
Have a long way to go, pressure test instrument is also required to be changed accordingly, adds the production cost of enterprise, also to tester with
The mode for having carried out before inconvenience, and test just to give the maximum seal pressure of valve end easily causes damage to valve end,
The lighter causes reprocessing for valve, and severe patient causes scrapping for valve, influences production efficiency and adds production cost.
A kind of Valve pressure test device is disclosed in Chinese utility model patent CN204594632U, this pressure testing equipment is used
One fixed supporting plate, the structure of a movable supporting plate, changes the distance between two supporting plates by regulation activity supporting plate, and then
Adapt to the valve of different model；And two on supporting plate it is each install to fix specific pressing plate is installed on a hydraulic cylinder, hydraulic cylinder piston rod,
Liquid conducting pipes are carried on pressing plate；Pressing plate can be released after starting hydraulic cylinder, finally plugging valve is realized with the pressing plate, and be passed through
The purpose of test medium.Using this Valve pressure test device, due to the restriction of support board structure, for valve of the interface without flange arrangement
And do not apply to；And the closure for valve both sides needs one hydraulic cylinder of each configuration, and two hydraulic cylinders need to be reconfigured at a liquid again
Pressure station, adds production cost, increases floor space.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of Valve pressure test device, the pressure testing machine only passes through the pressure of test(ing) medium
Power just can realize the clamping, sealing and pressure testing of valve, it is not necessary to be additionally provided hydraulic cylinder and hydraulic station to provide clamping force,
And be not easy to cause valve damage when clamping pressure testing.
In order to solve the above technical problems, the technical scheme is that：
A kind of Valve pressure test device, including：Frame, the frame include base and be arranged at the base first support and
Second support；Guide rail is connected between the first support and the second support, the guide rail is slidably fitted with slide, described
Slide drive device is provided between slide and the second support, the first support and the slide are respectively arranged with valve
Door clamps pressure testing device, and two valves clamp pressure testing device and are oppositely arranged；The valve clamp pressure testing device include cylinder body,
Piston and PRESSURE TESTING BLIND FLANGE, the cylinder body are fixedly connected on first frame or the slide, and the piston is installed in cylinder body,
The PRESSURE TESTING BLIND FLANGE is fixedly connected with the piston；The cylinder body is provided with test(ing) medium import, and the PRESSURE TESTING BLIND FLANGE is provided with experiment
Media outlet, the piston is provided with the passage for connecting the test(ing) medium import and test(ing) medium outlet.
It is preferred that, the PRESSURE TESTING BLIND FLANGE is bolted to connection with piston, and the bolt offers axial pass-through holes, institute
Axial pass-through holes are stated to connect with the passage on the piston.
It is preferred that, the end face relative with the cylinder body of the piston or the end relative with the piston of the cylinder body
Face is provided with counterbore.
It is preferred that, movable valve bracket is provided with the base of the frame.
After adopting the above technical scheme, the beneficial effects of the invention are as follows：
Because the test(ing) medium import on cylinder body, the passage on piston are mutually interconnected with the test(ing) medium outlet in PRESSURE TESTING BLIND FLANGE
It is logical, thus when test(ing) medium from test(ing) medium import enter it is fashionable can promote piston, while again can the passage through piston from pressure testing
The test(ing) medium outlet of blind plate enters experiment valve cavity, so that piston is only just realized with test(ing) medium promotes PRESSURE TESTING BLIND FLANGE,
PRESSURE TESTING BLIND FLANGE leakage test valve valve port, at the same test(ing) medium again can to experiment valve carry out pressure testing test, without for provide folder
Clamp force and be equipped with hydraulic cylinder and extra hydraulic station, save device fabrication cost and floor space.And PRESSURE TESTING BLIND FLANGE is to examination
Test the clamping force of valve with pressure test pressure to change and change, compared to giving the mode of maximum clamping force at the very start now less
Easily damage valve.
Because the PRESSURE TESTING BLIND FLANGE and piston are bolted to connection, the bolt offers axial pass-through holes, described
Axial pass-through holes are connected with the passage on the piston, so that PRESSURE TESTING BLIND FLANGE can be entered according to the experiment valve of different model
Row is changed, and reduces production cost, and the bolt will be connected with insertion function, simplify structure.
Due to the end face relative with the cylinder body or the end face relative with the piston of the cylinder body of the piston
Counterbore is provided with, so that test(ing) medium just can be filled with counterbore rapidly at first, and then piston is released.
Due to being provided with movable valve bracket on the base of frame, so that more easily clamping experiment valve, and support
Frame can be adjusted according to the size of experiment valve, enable adaptation to the experiment valve of different model.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the enlarged drawing of A in Fig. 1；
In figure, 1- frames, 1.1- bases, 1.2- first supports, 1.3- second supports, 2- guide rails, 3- slides, 4- slides drive
Dynamic device, 5- valves clamping pressure testing device, 5.1- cylinder bodies, 5.2- pistons, 5.3- PRESSURE TESTING BLIND FLANGEs, 5.4- test(ing) medium imports,
5.5- test(ing) mediums are exported, 5.6- sealing rings, 5.7- sealing rings, 5.8-O type sealing rings, 5.9- bolts, 6- movable valve supports
Frame, 7- experiment valves.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As shown in figure 1, a kind of Valve pressure test device, using frame 1 as frame structure, the frame 1 includes base 1.1 and set
In the first support 1.2 and second support 1.3 of base 1.1.Movable valve bracket 6 is provided with the base 1.1 of frame 1, should
Movable valve bracket 6 can carry out the adjustment of size and location according to the different model of experiment valve 7.First support 1.2 with
Guide rail 2 is connected between second support 1.3, slide 3 is installed on the guide rail 2, slide 3 is moved along guide rail 2, the slide 3 and
The drive device 4 of slide 3 is provided between two supports 1.3.First support 1.2 and slide 3 are respectively arranged with valve and clamp pressure testing
Device 5, the two valves clamp pressure testing device 5 and are oppositely arranged, in aspectant pattern.
As shown in Fig. 2 the valve, which clamps pressure testing device 5, includes cylinder body 5.1, piston 5.2 and PRESSURE TESTING BLIND FLANGE 5.3；Cylinder body 5.1
Test(ing) medium import 5.4 is provided with, PRESSURE TESTING BLIND FLANGE 5.3 is provided with test(ing) medium outlet 5.5, and piston 5.2 is provided with connection test
Medium entrance 5.4 and the passage of test(ing) medium outlet 5.5.One in wherein two cylinder bodies 5.1 is fixedly connected on first support 1.2
On, another is fixedly connected on slide 3.Piston 5.2 is installed in cylinder body 5.1, installs close between piston 5.2 and cylinder body 5.1
Seal 5.6 is sealed, and sealing ring type can select O-ring seal or V-shaped seal ring, and piston 5.2 is fitted with the end face of cylinder body 5.1
Place is provided with counter bore structure, and counterbore can be located on piston 5.2 and can also be located on cylinder body 5.1, it is therefore an objective to test and be situated between during pressure testing
Matter can quickly be filled with counterbore and then release piston 5.2.PRESSURE TESTING BLIND FLANGE 5.3 is fixed with piston 5.2 using bolt 5.9 to be connected
Connect, sealing ring 5.7 is installed between PRESSURE TESTING BLIND FLANGE 5.3 and the binding face of piston 5.2 and sealed, sealing ring 5.7 also can be replaced into sealing gasket
Sealing, it is ensured that test(ing) medium, the closure pet valve of PRESSURE TESTING BLIND FLANGE 5.3 will not be revealed between PRESSURE TESTING BLIND FLANGE 5.3 and the binding face of piston 5.2
The position of 7 valve ports of door is provided with O-ring groove, and mounting O-shaped sealing ring 5.8 is to realize the reliable sealing to testing the valve port of valve 7, spiral shell
The center of bolt 5.9 is provided with axial pass-through holes, when the bolt 5.9 and on piston 5.2 as passage screwed hole with merges general
When PRESSURE TESTING BLIND FLANGE 5.3 is fixedly attached on piston 5.2, the axial pass-through holes on bolt 5.9 cause bolt 5.9 not block piston
Passage on 5.2, makes test(ing) medium smoothly discharge.
Operation principle is as follows：
Before pressure testing, corresponding PRESSURE TESTING BLIND FLANGE 5.3, O-ring seal 5.8 and adjustment are changed according to the model of experiment valve 7 and moved
Dynamic formula valve bracket 6, experiment valve 7 is put just, then manipulate slide 3 after the above-mentioned work of completion on movable valve bracket 6
Drive device 4 causes the value pressure test clamping device on slide 3 to be moved to the value pressure test clamping device on opposite, and then clamps examination
Valve 7 is tested, pre-sealed, the pre-sealed pressure very little is realized to the valve port for testing valve 7, as long as experiment valve 7 can be clamped i.e.
Can.
During pressure testing, test(ing) medium is passed through from test(ing) medium import 5.4, then be filled with cylinder body 5.1 and the binding face of piston 5.2 it
Between counterbore space in, it is assumed that counterbore radius is r0, the pressure of test(ing) medium is p0, the channel radius of piston 5.2 is relative to counterbore half
Footpath is ignored, then the instantaneous pressure that now piston 5.2 is given by test(ing) medium isBecause the pressure is remote
The pre-sealed pressure being subject to more than piston 5.2, therefore piston 5.2 can be pushed open rapidly；Test(ing) medium again can be via piston 5.2 simultaneously
On passage by test(ing) medium outlet 5.5 be filled with experiment valve 7 in, experiment valve 7 in test(ing) medium reach stable state
Afterwards, it is assumed that now the radius of piston 5.2 is r1, the pressure of test(ing) medium is p1, the radius r of O-ring seal 5.82, the passage of piston 5.2 half
Footpath is ignored relative to the radius of piston 5.2, then now piston 5.2 close to test(ing) medium inlet side pressureAnd piston 5.2 is close to the experiment side pressure of valve 7ThereforeTwo
Pressure is proportional, i.e. the pressure p when test(ing) medium1When increase or reduction, the power F acted on piston 5.22Also increase or
Reduce, because of F1With F2It is directly proportional, therefore F1Also increase or reduction on year-on-year basis, it is not necessary to which the folder of maximum is provided experiment valve 7 at the very start
Clamp force, it is not easy to damage, and because the radius r of piston 5.2 are caused to the valve port for testing valve 71More than the radius r of O-ring seal 5.82
Certain value, therefore the present apparatus can provide reliable clamping force and sealing effectiveness.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (4)
1. a kind of Valve pressure test device, including：
Frame, the frame includes base and is arranged at the first support and second support of the base；The first support with
Guide rail is connected between the second support, the guide rail is slidably fitted with slide, between the slide and the second support
Slide drive device is provided with, the first support and the slide are respectively arranged with valve and clamp pressure testing device, two institutes
Valve clamping pressure testing device is stated to be oppositely arranged；Characterized in that,
The valve, which clamps pressure testing device, includes cylinder body, piston and PRESSURE TESTING BLIND FLANGE, and the cylinder body is fixedly connected on first machine
Frame or the slide, the piston are installed in cylinder body, and the PRESSURE TESTING BLIND FLANGE is fixedly connected with the piston；The cylinder body is provided with examination
Medium entrance is tested, the PRESSURE TESTING BLIND FLANGE is provided with test(ing) medium outlet, and the piston is provided with the connection test(ing) medium import
The passage exported with the test(ing) medium.
2. according to the Valve pressure test device described in claim 1, it is characterised in that the PRESSURE TESTING BLIND FLANGE is bolted with piston
Connection, the bolt offers axial pass-through holes, and the axial pass-through holes are connected with the passage on the piston.
3. according to the Valve pressure test device described in claim 1, it is characterised in that the end face relative with the cylinder body of the piston
Or the end face relative with the piston of the cylinder body is provided with counterbore.
4. according to the Valve pressure test device described in claim 1, it is characterised in that be provided with portable valve on the base of the frame
Door bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710336607.0A CN106989871A (en) | 2017-05-13 | 2017-05-13 | Valve pressure test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710336607.0A CN106989871A (en) | 2017-05-13 | 2017-05-13 | Valve pressure test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106989871A true CN106989871A (en) | 2017-07-28 |
Family
ID=59419387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710336607.0A Pending CN106989871A (en) | 2017-05-13 | 2017-05-13 | Valve pressure test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106989871A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588941A (en) * | 2017-10-16 | 2018-01-16 | 吴忠仪表有限责任公司 | Valve complete machine overpressure resistance detecting device |
| CN108213943A (en) * | 2017-12-07 | 2018-06-29 | 苏州安特威阀门有限公司 | A kind of intelligent valve assembles test machine |
| CN109406070A (en) * | 2017-08-18 | 2019-03-01 | 河北光德流体控制有限公司 | High pressure butt welded end value pressure test fixture |
| CN109813502A (en) * | 2017-11-21 | 2019-05-28 | 般德阀门科技有限公司 | A kind of butterfly valve bulge test machine |
| CN110261047A (en) * | 2019-05-09 | 2019-09-20 | 株洲九方铸造股份有限公司 | A kind of dedicated pressure testing equipment of sleeper beam plug-in unit |
| CN110361142A (en) * | 2019-07-12 | 2019-10-22 | 武汉工程大学 | A kind of device for detecting sealability of valve |
| CN111307014A (en) * | 2020-03-17 | 2020-06-19 | 何小红 | Valve processing is with subassembly of multi-functional test table that examines |
| CN111366311A (en) * | 2020-03-23 | 2020-07-03 | 常熟理工学院 | Air pressure detection device of recovery pressure reducing valve |
| CN112128506A (en) * | 2020-09-29 | 2020-12-25 | 无锡华光环保能源集团股份有限公司 | Clamping plate type water pumping device and using method thereof |
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| CN203519286U (en) * | 2013-10-31 | 2014-04-02 | 氟络塞尔特种阀门(苏州)有限公司 | Valve static hydraulic pressure testing machine fastening device |
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| CN206891661U (en) * | 2017-05-13 | 2018-01-16 | 山东益都阀门集团股份有限公司 | Valve pressure test device |
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| CN2129410Y (en) * | 1992-07-29 | 1993-04-07 | 四川石油管理局油气田建设工程公司 | Testing machint for horizontal rolled valve |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406070A (en) * | 2017-08-18 | 2019-03-01 | 河北光德流体控制有限公司 | High pressure butt welded end value pressure test fixture |
| CN107588941A (en) * | 2017-10-16 | 2018-01-16 | 吴忠仪表有限责任公司 | Valve complete machine overpressure resistance detecting device |
| CN109813502A (en) * | 2017-11-21 | 2019-05-28 | 般德阀门科技有限公司 | A kind of butterfly valve bulge test machine |
| CN108213943A (en) * | 2017-12-07 | 2018-06-29 | 苏州安特威阀门有限公司 | A kind of intelligent valve assembles test machine |
| CN110261047A (en) * | 2019-05-09 | 2019-09-20 | 株洲九方铸造股份有限公司 | A kind of dedicated pressure testing equipment of sleeper beam plug-in unit |
| CN110261047B (en) * | 2019-05-09 | 2021-12-10 | 株洲九方铸造股份有限公司 | Special pressure testing equipment of sleeper beam plug-in components |
| CN110361142A (en) * | 2019-07-12 | 2019-10-22 | 武汉工程大学 | A kind of device for detecting sealability of valve |
| CN111307014A (en) * | 2020-03-17 | 2020-06-19 | 何小红 | Valve processing is with subassembly of multi-functional test table that examines |
| CN111307014B (en) * | 2020-03-17 | 2022-01-04 | 浙江东辰阀门科技有限公司 | Valve processing is with subassembly of multi-functional test table that examines |
| CN111366311A (en) * | 2020-03-23 | 2020-07-03 | 常熟理工学院 | Air pressure detection device of recovery pressure reducing valve |
| CN112128506A (en) * | 2020-09-29 | 2020-12-25 | 无锡华光环保能源集团股份有限公司 | Clamping plate type water pumping device and using method thereof |
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