CN215910074U

CN215910074U - Control pry for detecting low-temperature air tightness of valve

Info

Publication number: CN215910074U
Application number: CN202122369021.9U
Authority: CN
Inventors: 王盛宏
Original assignee: Wuxi Liangxuan Construction Machinery Manufacturing Co ltd
Current assignee: Wuxi Liangxuan Construction Machinery Manufacturing Co ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-02-25
Anticipated expiration: 2031-09-28

Abstract

The utility model discloses a control pry for detecting the low-temperature air tightness of a valve, and provides the following technical scheme aiming at the problem of inconvenience in detection in the prior art, wherein the control pry comprises a box body, frames are arranged on the periphery of the box body, and a back plate and a panel are arranged on the frames; the back plate and the panel are connected with the box body through the frame; a cooling device is arranged on the inner side of the bottom of the box body; a moving component is arranged on the outer side of the bottom of the box body; the panel is provided with a control component and a detection component, and a pipeline is arranged between the control component and the detection component for communication. The control assembly and the detection assembly are communicated through the pipeline, after the control assembly is opened, gas in the helium bottle group externally connected with the control assembly is input into the pipeline, and the gas tightness of the valve to be tested is detected by observing the numerical value on the detection assembly communicated with the control assembly, so that the working efficiency is improved.

Description

Control pry for detecting low-temperature air tightness of valve

Technical Field

The utility model relates to a control pry, in particular to a control pry for detecting low-temperature air tightness of a valve.

Background

Before the valve is used, a corresponding device is required to be used for carrying out air tightness inspection for detecting the quality of the valve, and the working efficiency is improved under the condition of enhancing the air tightness of the valve.

At present, Chinese patent with publication number CN210774503U discloses a valve gas tightness quality inspection equipment, including translation mechanism, steering mechanism, fixture mechanism and the inspection bellows of taking off and land, translation and lift are carried out with steering mechanism, fixture mechanism to translation and lift by translation mechanism, and steering mechanism carries out ninety degrees adjustment with fixture mechanism, and fixture mechanism will wait to examine the blast gate and step up, and the inspection bellows is with the inside evacuation processing of bellows. The valve air tightness quality inspection of the utility model is suitable for various pipe diameters; the valve airtightness quality inspection can carry out quick detection, and the air valve does not need to be fixedly arranged on detection equipment; the utility model does not need to lift the valve, and only needs to place the valve on the bottom surface.

The valve air tightness quality inspection equipment mainly comprises a lifting mechanism, a turning mechanism, a fixture mechanism and an inspection air box, wherein the turning mechanism and the fixture mechanism are translated and lifted through the translation lifting mechanism, the turning mechanism adjusts the fixture mechanism by ninety degrees, the fixture mechanism tightly clamps an air valve to be inspected, and the inspection air box carries out vacuum-pumping treatment inside the air box to realize quick detection of the valve air tightness quality inspection.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide the control lever for detecting the low-temperature air tightness of the valve, and the control lever has the advantages of simplicity and convenience in operation and high sealing performance.

In order to achieve the purpose, the utility model provides the following technical scheme:

a control pry for detecting the low-temperature air tightness of a valve comprises a box body,

a frame is arranged on the periphery of the box body, and a back plate and a panel are arranged on the frame;

the back plate and the face plate are connected with the box body through the frame;

a cooling device is arranged on the inner side of the bottom of the box body; a moving assembly is arranged on the outer side of the bottom of the box body;

the panel is provided with a control assembly and a detection assembly, and a pipeline is arranged between the control assembly and the detection assembly for communication.

Adopt above-mentioned technical scheme, at the box all around through frame attach installation backplate and panel, set up control assembly on the panel and control in this box use, can carry out pressure detection through the numerical value that shows on the detection subassembly through the pipeline intercommunication between the detection subassembly of setting and the control assembly to the pipeline that carries out the treatment test to judge the gas tightness of valve, improve work efficiency.

Further, the control assembly comprises a control valve and a pressure gauge which are arranged on the panel; the control valve comprises a pressure inlet main valve, an A-end pressure inlet valve and a B-end pressure inlet valve which are arranged on two side edges of the pressure inlet main valve, and the pressure gauges comprise an A-end pressure gauge, a B-end pressure gauge and a pressure inlet pressure gauge; the pressure inlet pressure gauge is connected with a reversing valve, the reversing valve is connected with the pressure inlet main valve, and the outer end of the pressure inlet main valve is connected with the helium bottle group.

Adopt above-mentioned technical scheme, control the pipeline at A end place through setting up A end pressure inlet valve, it controls the pipeline at B end place to set up B end pressure inlet valve, A end pressure inlet valve still is equipped with the switching-over valve with the top of B end pressure inlet valve and controls A end pressure inlet valve and B end pressure inlet valve, the total valve of pressure inlet is connected to the outer end of switching-over valve, the different pressure inlet valves in total valve control both ends of pressure inlet carry gas, through the direction of switching-over valve, the gaseous direction of input of A end pressure inlet valve and B end pressure inlet valve is carried out in turn.

Further, the A-end pressure inlet valve controls the opening and closing of a stop valve A1, a stop valve A2, a stop valve A3, a stop valve A4, a stop valve A5, a stop valve A6, a stop valve A7 and a stop valve A8, the B-end pressure inlet valve controls the opening and closing of a stop valve B1, a stop valve B2, a stop valve B3, a stop valve B4, a stop valve B5, a stop valve B6, a stop valve B7 and a stop valve B8, the other ends of the stop valve A1, the stop valve A2, the stop valve A3 and the stop valve A4 are connected with a ball valve d to be tested, a ball valve c to be tested, a ball valve B to be tested and a ball valve a to be tested, and the other ends of the ball valve d to be tested, the ball c to be tested, the ball B to be tested and the ball a to be tested are connected with the stop valve B1, the stop valve B2, the stop valve B3 and the stop valve B4, and a pipeline connected with the A-end pressure inlet valve is provided with a valve.

Adopt above-mentioned technical scheme, through each stop valve and pending test ball valve interconnect under controlling A end inlet pressure valve and B end inlet pressure valve, opening or under the closed condition of control stop valve, one between A end inlet pressure valve and the B end inlet pressure valve is as the inlet pressure end, one is as leak detection end, to connecting the ball valve of waiting to experiment on the pipeline and carrying out the gas tightness and detecting, the change of manometer median value before and after the contrast in the testing process, detect the gas tightness of waiting to experiment ball valve, through the detection on A end and B end both sides limit, can treat that the gas tightness on experimental ball valve both sides limit all detects, can treat the detection that experiment ball valve realization comprehensiveness, guarantee the gas tightness of waiting to experiment ball valve.

Further, the end A pressure inlet valve, the end B pressure inlet valve and the pressure inlet main valve are located a first mounting strip is fixed at the inner side of the panel.

Adopt above-mentioned technical scheme, through set up first mounting bar in the place that A end pressure inlet valve, B end pressure inlet valve, pressure inlet main valve and panel inboard are fixed, fixed with A end pressure inlet valve, B end pressure inlet valve and pressure inlet main valve, make things convenient for A end pressure inlet valve, B end pressure inlet valve and pressure inlet main valve department connecting line, the circulation of control gas.

Further, the inboard of panel still is equipped with the second mounting bar, the second mounting bar will the panel is equallyd divide.

Adopt above-mentioned technical scheme, after the second mounting bar equally divides the panel inboard, the stop valve of fixing in the panel outside can make things convenient for the intercommunication and the use of pipeline in the inboard connecting line of panel.

Furthermore, the other end of the pressure gauge at the A end, the pressure gauge at the B end and the pressure inlet gauge is connected with a pressure gauge movable joint, and the pressure gauge movable joint is fixed on the inner side of the panel.

Adopt above-mentioned technical scheme, through manometer loose joint with extend at inboard A end manometer of panel, B end manometer and advance pressure manometer one side swing joint, be convenient for fix A end manometer, B end manometer and advance pressure manometer on the panel.

Further, the cooling device is a water tank arranged on the inner side of the bottom of the box body.

By adopting the technical scheme, the water tank is installed at the bottom of the box body, so that a low-temperature condition is provided for the whole structure, a low-temperature environment is provided for the air tightness of the detection valve, and the detection efficiency is improved.

Further, the moving assembly is a universal wheel arranged at the bottom of the box body.

By adopting the technical scheme, the four universal wheels can conveniently move and control the prying and the hoisting, and realize the braking function through the four universal wheels arranged at the bottom, so that the prying can be conveniently controlled to be static and movable.

In conclusion, the utility model has the following beneficial effects:

1. four experimental pipelines are formed by arranging a pressure gauge, a control valve, a stainless steel pipeline and a sheet metal part on a control pry, the opening and closing states of the pipelines are controlled by installing corresponding ball valves to be tested and stop valves on the experimental pipelines, the stop valve on one side is opened, the stop valve on the other side is closed, gas in a helium bottle group is conveyed into the pipelines by opening the stop valve on the pipeline on one side, the stop valve connected to the other end of the ball valve to be tested is opened after conveying, and leakage detection of a sealing surface on one side corresponding to the ball valve to be tested is realized;

2. after the air tightness of the sealing surface on one side of the ball valve to be tested is detected, the air tightness of the sealing surface on the other side of the ball valve to be tested is detected, helium is recovered after the detection, and the leakage detection of the end A and the end B is alternately realized by switching the end A and the end B on the two sides of the reversing valve;

3. set up three manometer and detect total pressure pipeline, upper reaches downstream end pipeline pressure respectively in whole pipeline, the numerical value through the manometer changes the gas tightness that detects the stop valve, and it is convenient to detect.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of the embodiment of the present invention with the internal structure of the back plate removed;

FIG. 3 is a logic diagram of a pipeline connection according to an embodiment of the utility model.

In the figure: 1. a box body; 2. a back plate; 3. a panel; 4. an A-end pressure gauge; 5. a pressure inlet gauge; 6. a pressure gauge at the B end; 7. a B end pressure inlet valve; 8. an A end inlet pressure valve; 9. a pressure inlet main valve; 10. a helium cylinder group; 11. a diverter valve; 12. a ball valve a to be tested; 13. a ball valve b to be tested; 14. a ball valve c to be tested; 15. a ball valve d to be tested; 16. a universal wheel; 17. a frame; 18. a water tank; 19. a valve block; 20. a first mounting bar; 21. a second mounting bar; 22. a pressure gauge movable joint.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and examples.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

A control pry for detecting the low-temperature air tightness of a valve is disclosed, referring to figures 1 to 3, a back plate 2 and a panel 3 are respectively arranged on the front side and the rear side of a box body 1 of the control pry, four universal wheels 16 are arranged on the bottom surface of the box body 1, the box body 1 can be driven by the four universal wheels 16 to move for use, and a control valve, a pressure gauge and a stop valve are arranged on the outer side surface of the panel 3 of the box body 1; wherein the control valve divide into the triplex, press into that total valve 9 is used for restricting the holistic progress of pressing of this control sled promptly, the both sides of pressing into total valve 9 set up A end pressure inlet valve 8 and B end pressure inlet valve 7 respectively, the inside pressure variation condition of control sled after A end pressure inlet valve 8 opens is used for showing to A end pressure gauge 4 that A end pressure inlet valve 8 connects, the inside pressure variation condition of control sled after B end pressure inlet valve 7 opens is used for showing to B end pressure gauge 6 that B end pressure inlet valve 7 connects, and then detect the in service behavior of this control sled, the pressure variation of the inside pressure variation of control sled is shown to pressure gauge 5 that the pressure inlet that sets up between A end pressure gauge 4 and the B end pressure gauge 6.

Refer to fig. 1, fig. 2, B end pressure inlet valve 7, pressure inlet main valve 9, a end pressure inlet valve 8 is fixed on panel 3's inside wall through first mounting bar 20, a end manometer 4, B end manometer 6, fix on panel 3's inside wall through manometer union 22 with pressure inlet manometer 5, the equidistance is provided with second mounting bar 21 on panel 3's inside wall simultaneously, second mounting bar 21 carries out the partition with panel 3's inside wall, it uses to conveniently install at control sled inside waiting to test the valve, control sled internally mounted's valve piece 19 is controlled the installation passageway through connecting after waiting to test the valve to control sled internally mounted, wherein install 16 stop valves that can connect with waiting to test the valve on the panel 3.

Referring to fig. 3,16 stop valves are divided into two parts, namely an a-end pressure inlet valve 8 and a B-end pressure inlet valve 7, wherein the a-end pressure inlet valve 8 controls 8 a-end stop valves, the B-end pressure inlet valve 7 controls 8B-end stop valves, and the a-end stop valves are a stop valve a1, a stop valve a2, a stop valve A3, a stop valve a4, a stop valve a5, a stop valve a6, a stop valve a7 and a stop valve A8; the B-end stop valves are a stop valve B1, a stop valve B2, a stop valve B3, a stop valve B4, a stop valve B5, a stop valve B6, a stop valve B7 and a stop valve B8 respectively; in the using process, the ball valve to be tested is respectively communicated with the A-end stop valve and the B-end stop valve through channels, and whether the quality of the ball valve to be tested is qualified or not is judged according to the change of a pressure gauge after control gas enters; specifically, four ball valves to be tested are installed, namely a ball valve a12 to be tested, a ball valve b13 to be tested, a ball valve c14 to be tested and a ball valve d15 to be tested; the upstream ends of a ball valve a12 to be tested, a ball valve B13 to be tested, a ball valve c14 to be tested and a ball valve d15 to be tested are respectively and correspondingly connected with a stop valve A4, a stop valve A3, a stop valve A2 and a stop valve A1, the downstream ends of the ball valve a12 to be tested, the ball valve B13 to be tested, the ball valve c14 to be tested and the ball valve d15 to be tested are respectively and correspondingly connected with a stop valve B4, a stop valve B3, a stop valve B2 and a stop valve B1, a main pressure inlet valve 9 is opened, a passage where an A-end pressure inlet valve 8 is located is opened after a reversing valve 11 connected with the main pressure inlet valve 9 is switched, then gas in a gas cylinder group 10 enters a passage where the A-end pressure inlet valve 8 is located, the A-end pressure inlet valve 8 serves as a pressure inlet end, and a B-end pressure inlet valve 7 serves as a leak detection end to detect the ball valve to be tested; the end of a stop valve A1 is connected to the upstream end of a ball valve d15 to be tested, the end of a stop valve B1 is connected to the downstream end of a ball valve d15 to be tested, the end of the stop valve A2 is connected to the upstream end of a ball valve c14 to be tested, the end of a stop valve B2 is connected to the downstream end of a ball valve c14 to be tested, the end of a stop valve A3 is connected to the upstream end of a ball valve B13 to be tested, the end of a stop valve B3 is connected to the downstream end of a ball valve B13 to be tested, the end of the stop valve A4 is connected to the upstream end of a ball valve a12 to be tested, and the end of a stop valve B4 is connected to the downstream end of a ball valve a12 to be tested; thus, four test pipelines are formed, after pressure passes through the A-end pressure inlet valve 8, the pressure is divided into three paths to respectively reach the pipelines of the stop valves A1, A2, A3 and A4, and the pressure of the valves to be tested corresponding to the four pipelines can be boosted after the stop valves A5, A6, A7 and A8 are closed; because the pressure does not flow into the pipeline at the end B, the leakage detection of the sealing surface at one side of the corresponding ball valve to be tested can be realized by closing the stop valves B1, B2, B3 and B4 of the pipeline at the end B and opening the stop valves B5, B6, B7 and B8 respectively, and the helium can be recovered by opening the stop valves A5, A6, A7 and A8 respectively after the test is finished; after the leakage detection of the sealing surface at one end is completed, the pressurization of the end B and the leakage detection of the end A are realized by switching the reversing valve 11, and the leakage detection of the sealing surface at the other side of the ball valve to be detected can be realized by repeating the air inlet steps.

The working principle of the utility model is as follows:

the gas in a helium bottle group 10 connected with a pressure inlet main valve 9 is switched to flow into a channel where an A-end pressure inlet valve 8 or a B-end pressure inlet valve 7 is located through a reversing valve 11, the pressure inlet valve on one side face is used as a pressure increasing end, the pressure inlet valve on the other side face is used as a leakage detecting end in an alternative switching mode through switching of the reversing valve 11, so that the ball valve to be tested can be comprehensively detected on two side faces, in addition, an A-end pressure gauge 4, a B-end pressure gauge 6 and a pressure inlet pressure gauge 5 are arranged in the whole pipeline to respectively detect the pressure of the pipeline where the A-end pressure inlet valve 8, the B-end pressure inlet valve 7 and the pressure inlet main valve 9 are located, the pipeline where the pressure inlet valve is located is conveniently detected through an air calibration pressure gauge, the air tightness of the ball valve to be tested can be conveniently detected, a universal wheel 16 is installed at the bottom of a box body 1 to facilitate movement or braking, and as the stop valve needs to normally work under a certain low temperature state, therefore, the water tank at the bottom of the control pry has the cooling effect when the control pry is used, so that the control pry is convenient and simple to use.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.

Claims

1. The utility model provides a control sled for detecting valve low temperature gas tightness which characterized in that: comprises a box body (1),

a frame (17) is arranged on the periphery of the box body (1), and a back plate (2) and a panel (3) are mounted on the frame (17);

the back plate (2) and the face plate (3) are connected with the box body (1) through the frame (17);

a cooling device is arranged on the inner side of the bottom of the box body (1); a moving component is arranged on the outer side of the bottom of the box body (1);

the panel (3) is provided with a control assembly and a detection assembly, and a pipeline is arranged between the control assembly and the detection assembly for communication.

2. A control lever for detecting the low-temperature airtightness of a valve as claimed in claim 1, wherein: the control component is a control valve arranged on the panel (3)

The detection component is a pressure gauge arranged on the panel (3);

the control valve comprises a pressure inlet main valve (9), an A-end pressure inlet valve (8) and a B-end pressure inlet valve (7), wherein the A-end pressure inlet valve and the B-end pressure inlet valve are arranged on two side edges of the pressure inlet main valve (9);

the pressure gauge comprises an A-end pressure gauge (4), a B-end pressure gauge (6) and a pressure inlet pressure gauge (5);

the pressure inlet pressure gauge (5) is connected with a reversing valve (11), the reversing valve (11) is connected with the pressure inlet main valve (9), and the outer end of the pressure inlet main valve (9) is connected with a helium bottle group (10).

3. A control lever for detecting the low-temperature airtightness of a valve as claimed in claim 2, wherein: the device comprises an A-end inlet pressure valve (8), a stop valve A1, a stop valve A2, a stop valve A3, a stop valve A4, a stop valve A5, a stop valve A6, a stop valve A7 and a stop valve A8, wherein the B-end inlet pressure valve (7) controls the opening and closing of a stop valve B1, a stop valve B2, a stop valve B3, a stop valve B4, a stop valve B5, a stop valve B6, a stop valve B7 and a stop valve B8, the other ends of the stop valve A1, the stop valve A2, the stop valve A3 and the stop valve A4 are connected with a ball valve d (15) to be tested, a ball valve c (14) to be tested and a ball valve a (12) to be tested, and the other ends of the ball valve D (15), the ball valve c (14), the ball valve B (13) to be tested and the ball valve a (12) to be tested are connected with a stop valve B1, a stop valve B2, a stop valve B3 and a stop valve B4, And a valve block (19) is arranged on a pipeline connected with the B-end pressure inlet valve (7).

4. A control lever for detecting the low-temperature airtightness of a valve as claimed in claim 2, wherein: a end pressure inlet valve (8), B end pressure inlet valve (7) with pressure inlet main valve (9) are located panel (3) inboard department is fixed with first mounting bar (20).

5. A control lever for detecting the low-temperature airtightness of a valve as claimed in claim 2, wherein: the inner side of the panel (3) is also provided with a second mounting bar (21), and the panel (3) is equally divided by the second mounting bar (21).

6. A control lever for detecting the low-temperature airtightness of a valve as claimed in claim 2, wherein: the pressure gauge is characterized in that the pressure gauge (4) at the A end, the pressure gauge (6) at the B end and the pressure inlet pressure gauge (5) are connected with pressure gauge movable joints (22), and the pressure gauge movable joints (22) are fixed on the inner side of the panel (3).

7. A control lever for detecting the low-temperature airtightness of a valve as claimed in claim 1, wherein: the cooling device is a water tank (18) arranged on the inner side of the bottom of the box body (1).

8. A control lever for detecting the low-temperature airtightness of a valve as claimed in claim 1, wherein: the moving assembly is a universal wheel (16) arranged at the bottom of the box body (1).