CN216815910U - A gas tightness device for detecting slide valve - Google Patents

A gas tightness device for detecting slide valve Download PDF

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Publication number
CN216815910U
CN216815910U CN202123095384.4U CN202123095384U CN216815910U CN 216815910 U CN216815910 U CN 216815910U CN 202123095384 U CN202123095384 U CN 202123095384U CN 216815910 U CN216815910 U CN 216815910U
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China
Prior art keywords
sealing
air inlet
air
gate valve
connection
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CN202123095384.4U
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Chinese (zh)
Inventor
贾瑞坤
刘雷
张振宁
郭富洁
刘俊敏
刘昆
周科言
张旭阳
郭凯飞
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Zhengzhou China Resources Gas Co Ltd
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Zhengzhou China Resources Gas Co Ltd
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Abstract

The utility model discloses an air tightness device for detecting a gate valve, which comprises a detection pipe and a first sealing seat, wherein the detection pipe is fixedly connected with the first sealing seat, the first sealing seat is connected with the gate valve, the other end of the detection pipe is connected with an end enclosure mechanism, the detection pipe is connected with an air inlet pipe assembly, and the air inlet pipe assembly is also connected with an air supply assembly. According to the utility model, the gate valve can be subjected to an air tightness test before equipment is assembled, and the gate valve meeting the air tightness standard is found and installed, so that the working efficiency is improved.

Description

A gas tightness device for detecting slide valve
Technical Field
The utility model relates to an air tightness device, in particular to an air tightness device for detecting a gate valve.
Background
The air tightness test of the gate valve is generally carried out after the equipment is assembled, if the air tightness of the gate valve does not meet the standard, the gate valve needs to be disassembled and replaced, the work efficiency is low, and a special device for detecting the air tightness of the gate valve before installation does not exist at present.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide an air tightness device for detecting a gate valve.
In order to solve the technical problems, the utility model adopts the technical scheme that:
the utility model provides an air tightness device for detecting slide valve, includes test tube and first seal receptacle, the first seal receptacle of the sealed fixed connection of test tube one end, first seal receptacle sealing connection slide valve, the other end sealing connection of test tube has head mechanism, the test tube still is connected with the admission pipe subassembly, the air feed subassembly is connected to the admission pipe subassembly.
And the first sealing seat is provided with a first connecting hole which is matched with a connecting port of the gate valve.
The end socket mechanism comprises an end socket and a second sealing seat, the second sealing seat is fixedly connected to the other port of the detection tube in a sealing mode, a second connecting hole is formed in the middle of the second sealing seat, the end socket is installed at the position of the second connecting hole, and the end socket is connected with the second sealing seat in a sealing mode through bolts.
An annular groove is formed in the outer side of a first connecting hole in the first sealing seat, a first sealing ring is arranged in the annular groove, the thickness of the first sealing ring is higher than the depth of the annular groove, connecting holes which are uniformly distributed in an annular shape are formed in the outer side of the first sealing ring, bolts matched with the connecting holes are arranged on the outer side of a connecting hole in the gate valve, and the connecting holes are connected with the bolts through nuts;
the outer side of a second connecting hole in the second sealing seat is provided with an annular groove, a second sealing ring is arranged in the annular groove, the thickness of the second sealing ring is higher than the depth of the annular groove, threaded holes are uniformly distributed in an annular shape in the outer side of the annular groove, bolts matched with the threaded holes are arranged on the end socket, and the end socket is connected with the second connecting hole through bolts.
The air inlet pipe assembly comprises an air inlet straight pipe and an air inlet hose, an air inlet is formed in the side portion of the detection pipe and connected with a first switch valve, the first switch valve is connected with the air inlet straight pipe, a pressure gauge is arranged at the end portion of the air inlet straight pipe, a second switch valve is arranged on the side portion of the air inlet straight pipe, the other end of the second switch valve is connected with the air inlet hose, and the air inlet hose is connected with the air supply assembly.
The air supply assembly comprises an air compressor, and the air inlet hose is connected with the air compressor.
Both sides of the detection tube are fixedly connected with lifting lugs.
The utility model has the following beneficial effects:
1. according to the utility model, the gate valve can be subjected to an air tightness test before equipment is assembled, the gate valve meeting the air tightness standard is found and installed, and the working efficiency is improved; through carrying out direct observation to the manometer that is equipped with, can audio-visual observation carry out the result of experimenting to the slide valve.
2. The arrangement of the first sealing ring and the second sealing ring ensures that the air pressure in the detection pipe is stable during detection, and the air leakage in the detection pipe during detection is prevented.
3. The pressure gauge is arranged on the air inlet straight pipe, so that the pointer of the pressure gauge can be observed conveniently; an air inlet hose is arranged between the air compressor and the needle valve, so that the air compressor can be conveniently moved.
4. The tip of detecting tube is equipped with head mechanism, conveniently seeks the gas leakage position through dismantling the head, carries out timely maintenance and handles.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is a top view of the present invention.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in fig. 1-3, an airtightness device for detecting a gate valve comprises a detection tube 1 and a first seal seat 2, wherein the detection tube 1 is cylindrical, a first circular connecting hole is formed in the middle of the first seal seat 2, a port of the detection tube 1 and the first connecting hole in the first seal seat 2 are welded, so that the port of the detection tube 1 is connected with the first seal seat 2 in a sealing manner, and airtightness and firmness between the detection tube 1 and the first seal seat 2 are ensured. The first sealing seat 2 is connected with the gate valve in a sealing mode through bolts, and the first sealing seat 2 and the gate valve are convenient to disassemble and assemble. The other end sealing connection head mechanism of test tube 1, the test tube lateral part still is connected with the inlet manifold subassembly, the inlet manifold subassembly still is connected with air feed subassembly.
As shown in fig. 2, the end sealing mechanism includes an end sealing head 3 and a second sealing seat 4, and the second sealing seat 4 is welded to the other port of the detection tube 1, so that the detection tube 1 and the second sealing seat 4 are hermetically connected. The middle of the second sealing seat 4 is provided with a circular second connecting hole, the seal head 3 is arranged at the second connecting hole, and the seal head 3 is connected with the second sealing seat 4 in a sealing manner through bolts.
As shown in fig. 3, in order to further ensure that the gas in the detection tube and the gate valve does not leak, an annular groove is formed in the outer side of a first connection hole in the first seal seat 2, a first seal ring is arranged in the annular groove, the thickness of the first seal ring is higher than the depth of the annular groove, connection holes are uniformly distributed in an annular shape are formed in the outer side of the first seal ring, bolts matched with the connection holes are arranged on the gate valve, and the connection holes are connected with the bolts through nuts, so that the first seal seat 2 is in sealed connection with the gate valve;
the outside of the second connecting hole on the second seal receptacle 4 is equipped with the annular groove, be equipped with second sealing washer 7 in the annular groove, the degree of depth that the thickness of second sealing washer 7 exceeds the annular groove, the outside of second sealing washer 7 is equipped with annular evenly distributed's screw hole, be equipped with on the head 3 with screw hole assorted bolt, sealing connection is realized through the bolt with the second connecting hole to head 3, sets up first sealing washer and second sealing washer 7 and guarantees that the interior gas pressure of test tube is stable when detecting, the effectual gas leakage that has prevented in the test tube when detecting.
The air inlet pipe assembly comprises an air inlet straight pipe and an air inlet hose, an air inlet 6 is arranged on the side portion of the detection pipe, the air inlet 6 is connected with a first switch valve, the first switch valve is connected with one end of the air inlet straight pipe, the other end of the air inlet straight pipe is connected with a pressure gauge, the middle of the air inlet straight pipe is connected with a second switch valve through an adapter, the other end of the second switch valve is connected with the air inlet hose, and the air inlet hose is connected with the air supply assembly.
The air supply assembly comprises an air compressor, and the air inlet hose is connected with the air compressor. The air inlet straight pipe is arranged at the air inlet 6, and the pressure gauges are arranged on the air inlet straight pipe, so that the pointer of the pressure gauge can be observed conveniently; set up the hose that admits air between air compressor machine and second ooff valve, make things convenient for the removal of air compressor machine.
In order to facilitate the installation and the disassembly of the detection tube 1, the two sides of the detection tube 1 are fixedly connected with lifting lugs 5.
The using method of the utility model comprises the following steps:
when the temporary detection is carried out, the non-sealing surface of the gate valve is connected with the detection pipe 1 in a sealing mode through the first sealing seat, the other end of the detection pipe 1 is connected with the end enclosure 3 in a sealing mode through the second sealing seat 4, the lateral portion of the detection pipe 1 is connected with the first switch valve through the air inlet, the first switch valve is connected with the air inlet straight pipe, the lateral portion of the air inlet straight pipe is connected with the second switch valve, the other end of the second switch valve is connected with the air inlet hose, and the air inlet hose is connected with the air compressor. The air inlet hose presses one side of the non-sealing surface of the gate valve to standard pressure through the air compressor, the second switch valve is closed, an air tightness test is carried out, and the change condition of the pressure gauge is observed, if the reading of the pressure gauge is stable and does not change, the air tightness of the gate valve is basically good; if the reading of the pressure gauge changes, the phenomenon of air leakage is indicated, and the air leakage position of the sealing surface of the gate valve is searched.
In order to further improve the air tightness standard of the gate valve, the non-sealing surface and the sealing surface of the gate valve are respectively connected with the gate valve. Specifically, a non-sealing surface of a gate valve is connected with a detection pipe 1 in a sealing manner through a first sealing seat 2, the other end of the detection pipe 1 is connected with an end enclosure 3 in a sealing manner through a second sealing seat 4, the side part of the detection pipe 1 is connected with a first switch valve through an air inlet, the first switch valve is connected with an air inlet straight pipe, the side part of the air inlet straight pipe is connected with a second switch valve, the other end of the second switch valve is connected with an air inlet hose, and the air inlet hose is connected with an air compressor; the sealing surface of the gate valve is also in sealing connection with the detection pipe through the first sealing seat 2, the other end of the detection pipe 1 is in sealing connection with the seal head 3 through the second sealing seat 4, the side part of the detection pipe 1 is connected with the first switch valve through the air inlet, and meanwhile, the first switch valve is set to be in a closed state. The air inlet hose is used for pressurizing the non-sealing surface of the gate valve to a standard pressure through an air compressor, meanwhile, a second switch valve arranged at the non-sealing surface is closed, standing is carried out for 24 hours, and if the readings of pressure gauges on two sides are stable and unchanged, the gate valve is proved to be good in air tightness; if the reading of the pressure gauge on the non-sealing surface is reduced, the reading of the pressure gauge on the sealing surface is increased to indicate that the air leakage phenomenon occurs, the seal head 3 connected with the detection pipe 1 at the sealing surface of the gate valve is opened to search the air leakage position, and the maintenance is carried out in time.
In the description of the present invention, it is to be understood that the terms "central", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the scope of the present invention.
If the terms "first," "second," etc. are used herein to define parts, those skilled in the art will recognize that: the use of "first" and "second" is merely for convenience in describing the utility model and to simplify the description, and unless otherwise stated the above words are not intended to have a special meaning.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: it is to be understood that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof, but such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (7)

1. The utility model provides an air tightness device for detecting slide valve, its characterized in that, includes test tube and first seal receptacle, the first seal receptacle of the sealed fixed connection of test tube one end, first seal receptacle sealing connection slide valve, the other end sealing connection of test tube has head mechanism, the test tube still is connected with the admission pipe subassembly, the air feed subassembly is connected to the admission pipe subassembly.
2. The apparatus of claim 1, wherein the first sealing seat is provided with a first connection hole, and the first connection hole is matched with the connection port of the gate valve.
3. The airtightness device for detecting the gate valve according to claim 2, wherein the sealing head mechanism includes a sealing head and a second sealing seat, the second sealing seat is fixedly connected to the other port of the detection pipe in a sealing manner, a second connection hole is formed in the middle of the second sealing seat, the sealing head is installed in the second connection hole, and the sealing head is connected with the second sealing seat in a sealing manner through a bolt.
4. The airtightness device for detecting the gate valve according to claim 3, wherein an annular groove is formed in the outer side of the first connection hole in the first seal seat, a first seal ring is arranged in the annular groove, the thickness of the first seal ring is higher than the depth of the annular groove, connection holes are uniformly distributed in an annular shape in the outer side of the first seal ring, bolts matched with the connection holes are arranged in the outer side of the connection port in the gate valve, and the connection holes are connected with the bolts through nuts;
the outer side of a second connecting hole in the second sealing seat is provided with an annular groove, a second sealing ring is arranged in the annular groove, the thickness of the second sealing ring is higher than the depth of the annular groove, threaded holes are uniformly distributed in an annular shape in the outer side of the annular groove, bolts matched with the threaded holes are arranged on the end socket, and the end socket is connected with the second connecting hole through bolts.
5. The airtightness device for detecting the gate valve according to claim 1, wherein the air inlet pipe assembly comprises an air inlet straight pipe and an air inlet hose, an air inlet is arranged on a side portion of the detection pipe, the air inlet is connected with a first switch valve, the first switch valve is connected with the air inlet straight pipe, a pressure gauge is arranged at an end portion of the air inlet straight pipe, a second switch valve is arranged on a side portion of the air inlet straight pipe, the other end of the second switch valve is connected with the air inlet hose, and the air inlet hose is connected with the air supply assembly.
6. The device of claim 5, wherein the air supply assembly includes an air compressor, and the air inlet hose is connected to the air compressor.
7. The airtightness device for detecting the gate valve according to claim 1, wherein lifting lugs are fixedly connected to both sides of the detection pipe.
CN202123095384.4U 2021-12-10 2021-12-10 A gas tightness device for detecting slide valve Active CN216815910U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202123095384.4U CN216815910U (en) 2021-12-10 2021-12-10 A gas tightness device for detecting slide valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202123095384.4U CN216815910U (en) 2021-12-10 2021-12-10 A gas tightness device for detecting slide valve

Publications (1)

Publication Number Publication Date
CN216815910U true CN216815910U (en) 2022-06-24

Family

ID=82051915

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202123095384.4U Active CN216815910U (en) 2021-12-10 2021-12-10 A gas tightness device for detecting slide valve

Country Status (1)

Country Link
CN (1) CN216815910U (en)

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