CN109297641A - A test device for testing high and low pressure seals of valves - Google Patents
A test device for testing high and low pressure seals of valves Download PDFInfo
- Publication number
- CN109297641A CN109297641A CN201811460226.4A CN201811460226A CN109297641A CN 109297641 A CN109297641 A CN 109297641A CN 201811460226 A CN201811460226 A CN 201811460226A CN 109297641 A CN109297641 A CN 109297641A
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- valve
- low pressure
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- test
- pipeline
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- 238000012360 testing method Methods 0.000 title claims abstract description 60
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000005259 measurement Methods 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000004382 potting Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
本发明提供了一种用于检验阀门高低压密封的试验装置，蓄水池的出口处设置有压力泵，压力泵与止回阀连接，止回阀后并联有低压水箱及高压开关阀，低压水箱及高压开关阀通过测试管路与蓄水池入口连接并形成循环管路，测试管路出口与蓄水池入口连接处还设置有泄压阀；测试管路根据测量阀门口径分别设置有3条测试支路，3条测试支路与测试管路之间分别设置有第一阀前截断阀、第二阀前截断阀、第三阀前截断阀；测试管路与低压压力测试管路连接，测试管路与低压压力测试管路之间设置有第四阀前截断阀。本发明所述的试验装置既可以测量阀门高压密封也可以测量阀门低压密封。
The invention provides a test device for testing the high and low pressure sealing of valves. A pressure pump is arranged at the outlet of the reservoir, the pressure pump is connected with a check valve, and a low pressure water tank and a high pressure switch valve are connected in parallel behind the check valve. The water tank and the high-pressure switch valve are connected to the inlet of the reservoir through the test pipeline to form a circulation pipeline, and a pressure relief valve is also provided at the connection between the outlet of the test pipeline and the inlet of the reservoir; the test pipeline is respectively provided with 3 valves according to the diameter of the measurement valve. One test branch, three test branches and the test pipeline are respectively provided with a first valve front block valve, a second valve front block valve, and a third valve front block valve; the test pipeline is connected with the low pressure pressure test pipeline , There is a fourth valve front cut-off valve between the test pipeline and the low-pressure pressure test pipeline. The test device of the present invention can measure both the high pressure seal of the valve and the low pressure seal of the valve.
Description
Technical field
The invention belongs to exhaust valve detection device technical fields, more particularly, to one kind for examining valve high-low pressure to seal
Experimental rig.
Background technique
With the development of industry, status of the combined type air inlet and exhaust valve (abbreviation exhaust valve) in water delivery pipeline system be increasingly
Important, still, as a part of pipe-line system, air valve is connect with atmosphere, if air valve is leaked when pipeline operates normally,
Liquid so in pipe-line system also leaks into outside system therewith, i.e., pipeline is leaked outside.Existing conventional pressure testing
Platform can only detect the high-potting of exhaust valve, not be capable of measuring sealing of the exhaust valve at 0.02MPa, and the exhaust valve of real work
Leakage often occurs in the case where low pressure.
Summary of the invention
In view of this, the present invention is directed to propose it is a kind of for examine valve high-low pressure seal experimental rig, to provide one
Kind can both measure exhaust valve high pressure sealing, while can also accurately measure the experimental rig of exhaust valve low pressure seal.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of experimental rig for examining valve high-low pressure to seal, comprising:
Reservoir, reservoir have an outlet, an entrance；
The exit of reservoir is provided with pressure pump, and pressure pump is connect with check-valves, and low pressure tank is parallel with after check-valves
And high-voltage switch gear valve, low pressure tank and high-voltage switch gear valve connect with reservoir entrance and are formed circulation line by testing pipeline,
Test tube outlet and reservoir inlet connection are additionally provided with relief valve；
Test pipeline is respectively arranged with 3 test branches according to measurement valve aperture, 3 test branches and test pipeline it
Between be respectively arranged with before the first valve before block valve, the second valve block valve before block valve, third valve；
It tests pipeline and low pressure and tests piping connection, test between pipeline and low pressure test pipeline and be provided with the
Block valve before four valves；
It is provided with low tension switch valve between low pressure tank and test pipeline, there is low pressure tank between low pressure tank and check-valves
Inlet valve.
Further, the low pressure test pipeline is divided into first branch section, second branch section and third branch section, the
Two sections are set in first branch section, in third branch section, and O-shaped sealing is provided between second branch section and first branch section
Circle, is provided with O-ring seal, second branch section can slide up and down, second branch section between second branch section and third branch section
It can be fixed by bolt and bracket；
Low-pressure sensor is arranged in second branch section.
Compared with the existing technology, the experimental rig of the present invention for examining valve high-low pressure to seal has following excellent
Gesture: experimental rig can both measure valve high-pressure seal or measure valve low pressure seal, can be passed by changing low pressure
The pressure value when height of sensor accurately to measure low pressure seal before valve；The present apparatus provides low pressure using eminence head
Source, can effectively prevent rising using pressure when pressure pump too fast, then sealing surface has been squeezed caused by deformation and surveys when reducing
Measure the problem of result inaccuracy；The present apparatus is increasingly automated experimental rig, in addition to installation valve and adjustment low pressure sensing
Device height, remaining operation are completed in station.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide to further understand the invention, present invention wound
The illustrative embodiments and their description made are used to explain the present invention creation, do not constitute the improper restriction to the invention.?
In attached drawing:
Fig. 1 is the schematic diagram of the experimental rig described in the embodiment of the present invention for examining valve high-low pressure to seal；
Fig. 2 is the connection schematic diagram of low tension switch valve described in the embodiment of the present invention, low pressure tank inlet valve；
Fig. 3 is the schematic diagram of the adjustment of low-pressure sensor height described in the embodiment of the present invention；
Fig. 4 is that second branch section described in the embodiment of the present invention assembles partial enlargement diagram；
Fig. 5 is the schematic side view of experimental rig described in the embodiment of the present invention.
Description of symbols:
11- low pressure tank；12- reservoir；Block valve before the first valve of 211-；Block valve before the second valve of 212-；213- third
Block valve before valve；Block valve before the 4th valve of 214-；22- low tension switch valve；23- low pressure tank inlet valve；24- check-valves；25- high
Compress switch valve；26- relief valve；31- pressure pump；41- tests pipeline；42- low pressure tests pipeline；421- first branch section；
422- second branch section；423- third branch section；424- bracket；51- high-pressure pressure sensor；52- low-pressure sensor.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the invention can
To be combined with each other.
In the description of the invention, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description the invention and simplifies description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For the limitation to the invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as indicating
Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " etc. are defined as a result,
Feature can explicitly or implicitly include one or more of the features.In the description of the invention, unless separately
It is described, the meaning of " plurality " is two or more.
In the description of the invention, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition
State concrete meaning of the term in the invention.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments creates.
The technical program the technical problem to be solved is that: as a part of pipe-line system, air valve is connect with atmosphere,
If air valve is leaked when pipeline operates normally, then the liquid in pipe-line system also leaks into outside system therewith, i.e., pipeline is sent out
Leakage is given birth to.Existing conventional pressure test bench can only detect the high-potting of exhaust valve, be not capable of measuring exhaust valve and exist
Sealing under 0.02MPa, and the exhaust valve leaks of real work often occur in the case where low pressure.
In order to solve the above-mentioned technical problem, as shown in Figure 1, present embodiments providing a kind of for examining valve high-low pressure close
The experimental rig of envelope, comprising:
Reservoir 12, reservoir 12 have an outlet, an entrance；The exit of reservoir 12 is provided with pressure pump 31, pressure
Power pump 31 is connect with check-valves 24, and low pressure tank 11 and high-voltage switch gear valve 25, low pressure tank 11 and height are parallel with after check-valves 24
The valve 25 that compresses switch connect and is formed circulation line, the outlet of test pipeline 41 and water storage with 12 entrance of reservoir by test pipeline 41
12 inlet connection of pond is additionally provided with relief valve 26；Test pipeline 41 is respectively arranged with 3 test branch according to measurement valve aperture
Road, be respectively arranged between 3 test branches and test pipeline 41 before first valve block valve 212 before block valve 211, the second valve,
Block valve 213 before third valve；Test pipeline 41 is connect with low pressure test pipeline 42, and test pipeline 41 and low pressure are tested
Block valve 214 before the 4th valve is provided between pipeline 42；As shown in Fig. 2, being provided between low pressure tank 11 and test pipeline 41
Low tension switch valve 22 has low pressure tank inlet valve 23 between low pressure tank 11 and check-valves 24.
As shown in Figure 3-4, low pressure test pipeline 42 divides for first branch section 421, second branch section 422 and the
Three sections 423, second branch section 422 are set in first branch section 421, in third branch section 423, second branch section 422 with
It is provided with O-ring seal between first branch section 421, is provided between second branch section 422 and third branch section 423 O-shaped close
Seal, second branch section 422 can slide up and down, and second branch section 422 can be fixed by bolt and bracket 424；Low pressure passes
Sensor 52 is arranged in second branch section 422.
Embodiment one: whether high pressure water-filling detection exhaust valve seals；
Exhaust valve is mounted on corresponding test branch road by bore, closes low pressure tank inlet valve 23 and low tension switch valve
22, block valve 214 before the 4th valve before low pressure tests pipeline 42 is closed, relief valve 26 is closed, is suppressed with pressure pump 31, is led to
It crosses high-pressure pressure sensor 51 and measures exhaust valve upstream pressure, until pressure reaches the pressure needed for needing, observation exhaust valve is
No leakage；
Embodiment two: low pressure water-filling detects whether exhaust valve under 0.02MPa or more low hydraulic pressure seals；
Exhaust valve port is installed to corresponding test branch road by bore, relief valve 26 is closed, closes low pressure tank water inlet
Block valve 214 before 4th valve of valve 23 and high-voltage switch gear valve 25, low tension switch valve 22 and low pressure test pipeline 42, testing tube
The second branch section 422 connecting on road 41 with low-pressure sensor 52 can move up and down, and be bolted on side
Bracket 424 on, by adjusting the height of low-pressure sensor 52, low-pressure sensor 52 and exhaust valve sealing can be allowed
Face maintains an equal level, and the first branch section 421 of test pipeline 41 is connect with atmosphere, and head reaches 2m, i.e. low pressure pressure in first branch section 421
When the pressure of force snesor 52 is shown to 0.02MPa, it can illustrate that exhaust valve upstream pressure is 0.02MPa, close low pressure at this time
Switch valve 22, detection exhaust valve whether leak (this embodiment mesolow can be the arbitrary value of 0-0.03MPa, it is not limited to
0.02MPa)。
When 11 water-filling of low pressure tank, it is additionally provided with level gauge in low pressure tank 11, is lower than low water alarm value when hydraulic
When, then the water-filling in low pressure tank 11,11 inlet valve of low pressure tank is opened at this time, passes through 31 net low pressure tank of pressure pump, 11 note
Water, until liquid level reaches high water level alarm value.
Technical solution provided by the embodiment have the technical effect that experimental rig both and can measure valve high-pressure seal or
Valve low pressure seal can be measured, it can be by changing the height of low-pressure sensor 52 come before valve when accurately measuring low pressure seal
Pressure value；The present apparatus provides low pressure source using eminence head, can effectively prevent rising using pressure when pressure pump 31
It is too fast, then when reducing sealing surface be squeezed deform caused by measurement result inaccuracy problem；The present apparatus is highly certainly
Dynamicization experimental rig, in addition to 52 height of installation valve and adjustment low-pressure sensor, remaining operation is completed in station.
The foregoing is merely the preferred embodiments of the invention, are not intended to limit the invention creation, all at this
Within the spirit and principle of innovation and creation, any modification, equivalent replacement, improvement and so on should be included in the invention
Protection scope within.
Claims (2)
1. a kind of experimental rig for examining valve high-low pressure to seal characterized by comprising
Reservoir, reservoir have an outlet, an entrance；
The exit of reservoir is provided with pressure pump, and pressure pump is connect with check-valves, and low pressure tank and height are parallel with after check-valves
Compress switch valve, and low pressure tank and high-voltage switch gear valve pass through test pipeline and circulation line connect and formed with reservoir entrance, tests
Tube outlet and reservoir inlet connection are additionally provided with relief valve；
Test pipeline is respectively arranged with 3 test branches according to measurement valve aperture, divides between 3 test branches and test pipeline
Block valve, third valve before block valve is not provided with before the first valve before block valve, the second valve；
It tests pipeline and low pressure tests piping connection, test between pipeline and low pressure test pipeline and be provided with the 4th valve
Preceding block valve；
It is provided with low tension switch valve between low pressure tank and test pipeline, there is low pressure tank water inlet between low pressure tank and check-valves
Valve.
2. a kind of experimental rig for examining valve high-low pressure to seal according to claim 1, it is characterised in that: low pressure
Pressure test pipeline is first branch section, second branch section and third branch section, and second branch section is set in first branch section, the
In three sections, be provided with O-ring seal between second branch section and first branch section, second branch section and third branch section it
Between be provided with O-ring seal, second branch section can slide up and down, and second branch section can be fixed by bolt and bracket；
Low-pressure sensor is arranged in second branch section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811460226.4A CN109297641A (en) | 2018-11-30 | 2018-11-30 | A test device for testing high and low pressure seals of valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811460226.4A CN109297641A (en) | 2018-11-30 | 2018-11-30 | A test device for testing high and low pressure seals of valves |
Publications (1)
| Publication Number | Publication Date |
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| CN109297641A true CN109297641A (en) | 2019-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811460226.4A Pending CN109297641A (en) | 2018-11-30 | 2018-11-30 | A test device for testing high and low pressure seals of valves |
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| CN (1) | CN109297641A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114252210A (en) * | 2020-09-21 | 2022-03-29 | 中核苏阀科技实业股份有限公司 | Device applied to low-pressure sealing test of combined type high-speed air inlet and outlet valve |
| CN114526877A (en) * | 2022-02-22 | 2022-05-24 | 三门核电有限公司 | Check valve low-pressure-difference sealing performance detection system and detection method |
| CN115307845A (en) * | 2022-08-11 | 2022-11-08 | 沈阳盛世五寰科技有限公司 | Check leakage rate test system and test method for check valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10132379A (en) * | 1996-10-31 | 1998-05-22 | Gastar Corp | Combined water heater |
| CN1614379A (en) * | 2004-11-23 | 2005-05-11 | 徐国林 | Pressure controlling valve checking stand with double water supplier |
| CN106525358A (en) * | 2016-12-20 | 2017-03-22 | 北京西门子西伯乐斯电子有限公司 | Valve pressure testing system and method |
| CN206269979U (en) * | 2016-11-30 | 2017-06-20 | 潍坊安泰玛钢有限公司 | A kind of tightness test device |
| CN107101775A (en) * | 2017-05-17 | 2017-08-29 | 上海幸福摩托车有限公司 | Experimental rig for testing cooling water pump |
| CN107460920A (en) * | 2017-08-29 | 2017-12-12 | 佛山市品柏智能科技有限公司 | A kind of Liftable shower post |
| CN209055285U (en) * | 2018-11-30 | 2019-07-02 | 博纳斯威阀门股份有限公司 | A kind of experimental rig for examining valve high-low pressure to seal |
-
2018
- 2018-11-30 CN CN201811460226.4A patent/CN109297641A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10132379A (en) * | 1996-10-31 | 1998-05-22 | Gastar Corp | Combined water heater |
| CN1614379A (en) * | 2004-11-23 | 2005-05-11 | 徐国林 | Pressure controlling valve checking stand with double water supplier |
| CN206269979U (en) * | 2016-11-30 | 2017-06-20 | 潍坊安泰玛钢有限公司 | A kind of tightness test device |
| CN106525358A (en) * | 2016-12-20 | 2017-03-22 | 北京西门子西伯乐斯电子有限公司 | Valve pressure testing system and method |
| CN107101775A (en) * | 2017-05-17 | 2017-08-29 | 上海幸福摩托车有限公司 | Experimental rig for testing cooling water pump |
| CN107460920A (en) * | 2017-08-29 | 2017-12-12 | 佛山市品柏智能科技有限公司 | A kind of Liftable shower post |
| CN209055285U (en) * | 2018-11-30 | 2019-07-02 | 博纳斯威阀门股份有限公司 | A kind of experimental rig for examining valve high-low pressure to seal |
Non-Patent Citations (1)
| Title |
|---|
| 厉玉鸣 等: "《化工仪表及自动化》", 化学工业出版社, pages: 37 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114252210A (en) * | 2020-09-21 | 2022-03-29 | 中核苏阀科技实业股份有限公司 | Device applied to low-pressure sealing test of combined type high-speed air inlet and outlet valve |
| CN114526877A (en) * | 2022-02-22 | 2022-05-24 | 三门核电有限公司 | Check valve low-pressure-difference sealing performance detection system and detection method |
| CN115307845A (en) * | 2022-08-11 | 2022-11-08 | 沈阳盛世五寰科技有限公司 | Check leakage rate test system and test method for check valve |
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Application publication date: 20190201 |
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