CN209055285U - A kind of experimental rig for examining valve high-low pressure to seal - Google Patents
A kind of experimental rig for examining valve high-low pressure to seal Download PDFInfo
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- CN209055285U CN209055285U CN201822002211.5U CN201822002211U CN209055285U CN 209055285 U CN209055285 U CN 209055285U CN 201822002211 U CN201822002211 U CN 201822002211U CN 209055285 U CN209055285 U CN 209055285U
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- pipeline
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Abstract
The utility model provides a kind of experimental rig for examining valve high-low pressure to seal, the exit of reservoir is provided with pressure pump, pressure pump is connect with check-valves, low pressure tank and high-voltage switch gear valve are parallel with after check-valves, low pressure tank and high-voltage switch gear valve pass through test pipeline and circulation line are connect and formed with reservoir entrance, and 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, and block valve before block valve, third valve is respectively arranged with before the first valve before block valve, the second valve between 3 test branches and test pipeline；It tests pipeline and low pressure tests piping connection, test between pipeline and low pressure test pipeline and be provided with block valve before the 4th valve.Experimental rig described in the utility model can both measure valve high-pressure seal or measure valve low pressure seal.
Description
Technical field
The utility model belongs to exhaust valve detection device technical field, more particularly, to one kind for examining valve high-low pressure
The experimental rig of sealing.
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 utility model is directed to a kind of experimental rig for examining valve high-low pressure to seal, to mention
Exhaust valve high pressure sealing can be both measured for a kind of, while the experimental rig of exhaust valve low pressure seal can also be accurately measured.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
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, it is described in the utility model for examine valve high-low pressure seal experimental rig have with
Lower advantage: experimental rig can both measure valve high-pressure seal or measure valve low pressure seal, can be by changing low pressure pressure
The pressure value when height of force snesor accurately to measure low pressure seal before valve；The present apparatus provides low pressure pressure using eminence head
Power source, can effectively prevent rising using pressure when pressure pump too fast, then sealing surface has been squeezed caused by deformation when reducing
The problem of measurement result inaccuracy；The present apparatus is increasingly automated experimental rig, in addition to installation valve and adjustment low pressure pass
Sensor 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 utility model embodiment for examining valve high-low pressure to seal；
Fig. 2 is the connection schematic diagram of low tension switch valve described in the utility model embodiment, low pressure tank inlet valve；
Fig. 3 is the schematic diagram of the adjustment of low-pressure sensor height described in the utility model embodiment；
Fig. 4 is that second branch section described in the utility model embodiment assembles partial enlargement diagram；
Fig. 5 is the schematic side view of experimental rig described in the utility model embodiment.
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 |
|---|---|---|---|
| CN201822002211.5U CN209055285U (en) | 2018-11-30 | 2018-11-30 | A kind of experimental rig for examining valve high-low pressure to seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822002211.5U CN209055285U (en) | 2018-11-30 | 2018-11-30 | A kind of experimental rig for examining valve high-low pressure to seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209055285U true CN209055285U (en) | 2019-07-02 |
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ID=67054600
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822002211.5U Active CN209055285U (en) | 2018-11-30 | 2018-11-30 | A kind of experimental rig for examining valve high-low pressure to seal |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109297641A (en) * | 2018-11-30 | 2019-02-01 | 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 |
| CN110533985A (en) * | 2019-10-19 | 2019-12-03 | 广州番禺职业技术学院 | A kind of pressure pipeline listens leakage Experiment Training system |
-
2018
- 2018-11-30 CN CN201822002211.5U patent/CN209055285U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109297641A (en) * | 2018-11-30 | 2019-02-01 | 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 |
| CN110533985A (en) * | 2019-10-19 | 2019-12-03 | 广州番禺职业技术学院 | A kind of pressure pipeline listens leakage Experiment Training system |
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