CN109238590A - A kind of valve airtight detection apparatus - Google Patents

A kind of valve airtight detection apparatus Download PDF

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Publication number
CN109238590A
CN109238590A CN201811216869.4A CN201811216869A CN109238590A CN 109238590 A CN109238590 A CN 109238590A CN 201811216869 A CN201811216869 A CN 201811216869A CN 109238590 A CN109238590 A CN 109238590A
Authority
CN
China
Prior art keywords
valve
pressure
opening
chamber
shutting
Prior art date
Application number
CN201811216869.4A
Other languages
Chinese (zh)
Inventor
杨昆
Original Assignee
合肥合茂电子科技有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 合肥合茂电子科技有限公司 filed Critical 合肥合茂电子科技有限公司
Priority to CN201811216869.4A priority Critical patent/CN109238590A/en
Publication of CN109238590A publication Critical patent/CN109238590A/en

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/28Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • G01M3/2876Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for valves
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/12Investigating 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
    • G01M3/14Investigating 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
    • G01M3/144Investigating 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

Abstract

The present invention provides a kind of valve airtight detection apparatus, including pressure piping, the side of pressure piping is provided with medium inlet;At least one opening/shutting valve is provided in pressure piping, pressure piping is separated at least two chambers by opening/shutting valve;Chamber is provided with pressure valve, and the output end of pressure valve connects medium inlet;Chamber is provided with pressure gauge, and opening/shutting valve is provided with controller, and controller connects the pressure gauge of the chamber in opening/shutting valve two sides far from medium inlet side, for the opening and closing according to the Numerical Control opening/shutting valve of pressure gauge;Valve installation interface is provided on chamber.This valve airtight detection apparatus is able to carry out the valve detection of a variety of design pressures.

Description

A kind of valve airtight detection apparatus

Technical field

The present invention relates to detection device technology field more particularly to a kind of valve airtight detection apparatus.

Background technique

Valve be in the fluid system, for control the direction of fluid, pressure, flow device, be to make piping and equipment Interior medium (liquid, gas, powder) flows or stops and can control the device of its flow.

Valve is that control unit in pipeline fluid conveying system has for changing access section and flow direction of medium The functions such as water conservancy diversion, cut-off, throttling, non-return, shunting or overflow release.For the valve of fluid control, from simplest shut-off valve To various valves used in extremely complex robot control system(RCS), kind and specification are various, and the inside nominal diameter of valve is from atomic small Gauge valve greatly to latus rectum reach 10m industrial pipeline valve.It can be used for controlling water, steam, oil product, gas, mud, various corrosion The various types such as property medium, liquid metal and radioactive fluid fluidly flow, and the operating pressure of valve can be from 0.0013MPa To the super-pressure of 1000MPa, operating temperature can be from -270 DEG C of ultralow temperature to 1430 DEG C of high temperature.

A variety of kinds of drive can be used in the control of valve, such as manually, electrically, surge, pneumatically, turbine, electromagnetic driven, electromagnetic liquid Dynamic, electro-hydraulic dynamic, air-or liquid-operated, spur gear, umbrella tooth wheel drive etc.;It can be in the effect of pressure, temperature or other forms transducing signal Under, it is acted by scheduled requirement, or do not depend on transducing signal and simply opened or closed, valve is by driving or certainly Motivation structure goes up and down opening and closing element, slides, swing or rotary motion, to change the size of its flow area to realize its control Function.

Valve needs to make a strength test and air-tight test before use of dispatching from the factory, and is carrying out valve air-tightness at present When test, usually valve is fixed on high pressure ventilation pipe, is then put into pipeline and valve in sink simultaneously, into pipeline High pressure gas is passed through to examine whether valve air-tightness meets the requirements.

Since valve is all mounted on pressure piping, in order to guarantee the requirement of valve pressure, pressure phase can only be designed Same valve detection, test are not convenient enough.

Summary of the invention

In view of this, can satisfy the technical problem to be solved in the present invention is to provide a kind of valve airtight detection apparatus The testing requirements of the valve of different designs pressure.

The technical scheme of the present invention is realized as follows:

The side of a kind of valve airtight detection apparatus, including pressure piping, the pressure piping is provided with medium inlet;

At least one opening/shutting valve is provided in the pressure piping, the pressure piping is separated by the opening/shutting valve At least two chambers;

The chamber is provided with pressure valve, and the output end of the pressure valve connects the medium inlet;

The chamber is provided with pressure gauge, and the opening/shutting valve is provided with controller, and the controller connects the opening and closing The pressure gauge of chamber in valve two sides far from the medium inlet side, for the Numerical Control according to the pressure gauge The opening and closing of the opening/shutting valve;

Valve installation interface is provided on the chamber.

Preferably, the valve installation interface is flange form interface and/or hickey.

Preferably, the opening/shutting valve is fast opening and closing gate valve.

Preferably, the dial plate of the pressure gauge is connect with the gauge stand of the pressure gauge by universal joint.

Preferably, the pressure piping is made of pipe line steel.

Preferably, amplification imaging device is provided with above the valve installation interface.

Valve airtight detection apparatus proposed by the present invention, by the way that opening/shutting valve is arranged on pressure piping by pressure piping It is divided into multiple chambers, since different chamber is separated by opening/shutting valve, can be made not by the way that the closing sequence of opening/shutting valve is arranged There is different detection pressure with chamber, so that when being detected a variety of design pressures can be detected by different chambers Valve.

Detailed description of the invention

Fig. 1 is the structural schematic diagram for the valve airtight detection apparatus that the embodiment of the present invention proposes.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.

As shown in Figure 1, the embodiment of the present invention proposes a kind of valve airtight detection apparatus, including pressure piping 1, high pressure The side of pipeline 1 is provided with medium inlet 2;

At least one opening/shutting valve 3 is provided in pressure piping 1, pressure piping is separated at least two chambers by opening/shutting valve Room 4;

Chamber 4 is provided with pressure valve 5, and the output end of pressure valve 5 connects medium inlet 2;

Chamber is provided with pressure gauge 6, and opening/shutting valve 6 is provided with controller, and controller connects separate in opening/shutting valve two sides The pressure gauge of the chamber of medium inlet side, for the opening and closing according to the Numerical Control opening/shutting valve of pressure gauge;

Valve installation interface 7 is provided on chamber.

As it can be seen that the valve airtight detection apparatus that the embodiment of the present invention proposes, by the way that opening and closing valve is arranged on pressure piping Goalkeeper's pressure piping is divided into multiple chambers, since different chamber is separated by opening/shutting valve, can pass through setting opening/shutting valve Closing sequence makes different chamber have different detection pressure, to can be detected when being detected by different chambers more The valve of kind design pressure;Pressure valve is set on chamber, regulated value can be arranged according to according to the detection pressure of chamber in pressure valve, When the pressure of chamber is greater than regulated value, prevent from causing the damage of valve to be detected by pressure valve pressure release.

In a preferred embodiment of the invention, valve installation interface is flange form interface and/or hickey.

General valve is installed by flange form interface or hickey, therefore method can be arranged on pressure piping Blue formula interface and/or hickey meet the interface needs of valve.

In a preferred embodiment of the invention, opening/shutting valve is fast opening and closing gate valve.

Fast opening and closing gate valve, opening and closing time is short to be called repid cut-off valve.Sealing performance is excellent, can root out automatically in operation close Cover dirt, keeps strict sealing, and flow direction of medium is generally unrestricted.Medium can be from gate valve two sides any direction stream It crosses, can achieve the purpose that connection or truncation.It is easily installed, suitable for the pipeline that the flow direction of medium may change.

In a preferred embodiment of the invention, the gauge stand of the dial plate of pressure gauge and pressure gauge is connected by universal joint It connects.

It, can be by the gauge stand of the dial plate of pressure gauge and pressure gauge for the ease of observing the display of pressure gauge in the present embodiment It is connected by universal joint, so as to which dial plate to be turned to the angle convenient for observation according to demand.

In a preferred embodiment of the invention, pressure piping is made of pipe line steel.

The voltage endurance capability of pipe line steel is stronger, and pressure piping can bear higher pressure using pipe line steel.

In a preferred embodiment of the invention, amplification imaging device is provided with above valve installation interface.

In the present embodiment, when carrying out air-leakage test, if it find that the pressure change of pressure gauge, can be examined with suds Whether have bubble, for the ease of observing bubble, can install in valve and be arranged above interface if looking at the sealings such as the flap of each valve Amplify imaging device, amplification imaging device can be magnifying glass, and bubble generation can have been seen whether in order to tester.

Valve detection device proposed by the present invention can first install blind flange, so before testing on flange form interface Gas is passed through into pressure piping by medium inlet afterwards, when gas, which reaches, centainly to be required, medium inlet is closed, observes each chamber Whether the pressure gauge of room changes to guarantee the air-tightness of pressure piping.

When being detected, by taking 4 chambers as an example, each chamber according to a distance from medium inlet from as far as closely successively label For first chamber, second chamber, third chamber and the 4th chamber;It, can be with if the design pressure of valve to be detected is four kinds It is separately mounted in first chamber to the 4th chamber according to design pressure from small arrival;When detection, opening/shutting valve is all turned on, and is seen Pressure gauge is examined, when the pressure of first chamber reaches 1.1 times of valve design pressure, controller closes first chamber and the second chamber Opening/shutting valve between room;Remaining of first chamber and pressure piping chamber isolation at this time continues through medium inlet pressurization, when When the pressure of second chamber reaches 1.1 times of corresponding valve design pressure, controller is closed between second chamber and third chamber Opening/shutting valve, remaining chamber according to such as upper type one by one by opening/shutting valve be isolated, so as to so that each chamber have difference Detection pressure, be convenient for the detection of the valve of different designs pressure.

If the quantity of chamber is greater than the type of valve design pressure, can be by way of opening opening/shutting valve by two Or multiple chambers merge into a chamber, are convenient for detecting, then this is not repeated one by one.

In the present invention, by the way that pressure valve is arranged on chamber, when opening/shutting valve is revealed, medium can be from high-pressure area It is flowed to area of low pressure, the pressure of low-pressure chamber is caused to increase, when the design pressure that pressure is more than test valve is excessive, can made At the damage of valve, therefore pressure valve is set on chamber, the numerical value of pressure valve can be the design pressure of valve to be detected 1.1 times, so that pressure valve decompression protection valve to be detected can be passed through when opening/shutting valve is revealed.

In conclusion following effect at least may be implemented in the embodiment of the present invention:

In embodiments of the present invention, pressure piping is divided into multiple chambers by the way that opening/shutting valve is arranged on pressure piping, Since different chamber is separated by opening/shutting valve, it can make different chamber that there is difference by the way that the closing sequence of opening/shutting valve is arranged Detection pressure, so that the valve of a variety of design pressures can be detected by different chambers when being detected.

Finally, it should be noted that the foregoing is merely presently preferred embodiments of the present invention, it is merely to illustrate skill of the invention Art scheme, is not intended to limit the scope of the present invention.Any modification for being made all within the spirits and principles of the present invention, Equivalent replacement, improvement etc., are included within the scope of protection of the present invention.

Claims (6)

1. a kind of valve airtight detection apparatus, which is characterized in that including pressure piping, the side of the pressure piping is provided with Medium inlet;
At least one opening/shutting valve is provided in the pressure piping, the pressure piping is separated at least by the opening/shutting valve Two chambers;
The chamber is provided with pressure valve, and the output end of the pressure valve connects the medium inlet;
The chamber is provided with pressure gauge, and the opening/shutting valve is provided with controller, and the controller connects the opening/shutting valve The pressure gauge of chamber in two sides far from the medium inlet side, for according to the Numerical Control of the pressure gauge The opening and closing of opening/shutting valve;
Valve installation interface is provided on the chamber.
2. valve airtight detection apparatus as described in claim 1, which is characterized in that the valve installation interface is flange form Interface and/or hickey.
3. valve detection device as described in claim 1, which is characterized in that the opening/shutting valve is fast opening and closing gate valve.
4. valve detection device as described in claim 1, which is characterized in that the dial plate of the pressure gauge and the pressure gauge Gauge stand is connected by universal joint.
5. valve detection device as described in claim 1, which is characterized in that the pressure piping is made of pipe line steel.
6. valve detection device as described in any one in claim 1-5, which is characterized in that set above the valve installation interface It is equipped with amplification imaging device.
CN201811216869.4A 2018-10-18 2018-10-18 A kind of valve airtight detection apparatus CN109238590A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811216869.4A CN109238590A (en) 2018-10-18 2018-10-18 A kind of valve airtight detection apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811216869.4A CN109238590A (en) 2018-10-18 2018-10-18 A kind of valve airtight detection apparatus

Publications (1)

Publication Number Publication Date
CN109238590A true CN109238590A (en) 2019-01-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811216869.4A CN109238590A (en) 2018-10-18 2018-10-18 A kind of valve airtight detection apparatus

Country Status (1)

Country Link
CN (1) CN109238590A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104215408A (en) * 2013-05-30 2014-12-17 宁波富华阀门有限公司 Valve air tightness detection system
CN108204883A (en) * 2018-02-28 2018-06-26 武汉冶建筑安装工程有限责任公司 Valve air-tightness detection method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104215408A (en) * 2013-05-30 2014-12-17 宁波富华阀门有限公司 Valve air tightness detection system
CN108204883A (en) * 2018-02-28 2018-06-26 武汉冶建筑安装工程有限责任公司 Valve air-tightness detection method

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