CN112924100A - Ball valve leakproofness detection device for natural gas - Google Patents
Ball valve leakproofness detection device for natural gas Download PDFInfo
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- CN112924100A CN112924100A CN202110174052.0A CN202110174052A CN112924100A CN 112924100 A CN112924100 A CN 112924100A CN 202110174052 A CN202110174052 A CN 202110174052A CN 112924100 A CN112924100 A CN 112924100A
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- ball valve
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- natural gas
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- 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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Abstract
The invention discloses a device for detecting the sealing performance of a natural gas ball valve, which effectively solves the problem that the existing polyethylene ball valve is easy to damage when the existing polyethylene ball valve is subjected to delivery detection; the device comprises a base, a positioning device, a pressing device and an inflating device, wherein a fixed plate is arranged on the base, the positioning device is fixedly connected with the fixed plate, an inspection device is arranged on the positioning device, a fixed block is arranged at the other end of the base, one end, far away from the fixed plate, of the fixed block is fixedly connected with the inflating device, a containing groove with an opening facing the fixed plate is formed in the fixed block, the pressing device is in sliding connection with the containing groove, a spring is arranged between the pressing device and the bottom of the containing groove, a connecting pipe is arranged at one end, far away from the positioning device, of; the ball valve is fixed under the action of the spring by the aid of the matching of the positioning device and the pressing device, axial force applied when the ball valve is fixed is reduced, and deformation and damage of the ball valve are avoided.
Description
Technical Field
The invention belongs to the technical field of ball valve detection, and particularly relates to a ball valve sealing performance detection device for natural gas.
Background
In the existing natural gas pipe network, a metal ball valve is gradually replaced by a polyethylene ball valve, and the polyethylene ball valve has the advantages of light weight, corrosion resistance, long service life and the like.
The natural gas ball valve is used as an opening and closing switch in a natural gas pipe network, the requirement on air tightness is high, if natural gas leaks in the using process, the damage which is difficult to measure can be caused, and therefore the tightness of the natural gas ball valve needs to be detected before the natural gas ball valve leaves a factory.
At present, force application devices such as an air cylinder and a jack are often adopted for detecting the natural gas ball valve to clamp two ends of the ball valve, and then air pressure is filled into an inner cavity of the ball valve for testing, however, the polyethylene ball valve is made of plastic materials, and axial stress easily causes deformation of the ball valve, so that a test result is influenced.
Disclosure of Invention
The invention aims to provide a device for detecting the sealing property of a natural gas ball valve, which effectively solves the problem that the existing polyethylene ball valve is easy to damage when the existing polyethylene ball valve is subjected to factory detection.
The technical scheme adopted by the invention is as follows:
the utility model provides a ball valve leakproofness detection device for natural gas, which comprises a base, positioner, closing device and aerating device, be equipped with the fixed plate on the base, positioner and fixed plate fixed connection, the last verifying attachment that is equipped with of positioner, the other end of base is equipped with the fixed block, the fixed block is kept away from the one end and the aerating device fixed connection of fixed plate, set up the holding tank of opening towards the fixed plate on the fixed block, closing device and holding tank sliding connection, and be equipped with the spring between the bottom of closing device and holding tank, closing device keeps away from positioner's one end and is equipped with the connecting pipe, the other end of connecting pipe runs through the fixed block.
Preferably, the positioning device comprises a cylindrical positioning block, an air outlet is formed in the positioning block and communicated with the inspection device, and one end, far away from the inspection device, of the positioning block is in a circular truncated cone shape.
Preferably, the inspection device comprises a blowing dragon, and the blowing dragon is communicated with the air outlet hole.
Preferably, the compressing device comprises a cylindrical compressing block, the compressing block is coaxial with the positioning block, an air inlet is formed in the compressing block and communicated with the connecting pipe, and one end, close to the positioning block, of the compressing block is in a circular truncated cone shape.
Preferably, aerating device include piston cylinder, piston plate, piston rod, piston cylinder and connecting pipe fixed connection, piston plate and piston cylinder sliding connection are equipped with the opening on the piston plate towards the check valve of connecting pipe, piston version and piston rod fixed connection, the piston rod other end runs through the piston cylinder, and is equipped with the push pedal, the inlet port has been seted up to the one end that the connecting pipe was kept away from to the solid fixed cylinder.
Preferably, set up the spout with the holding tank intercommunication on the fixed block, articulated on the fixed block have the pendulum rod, seted up the sliding tray on the pendulum rod, be equipped with the push rod on the compact heap, push rod and spout sliding connection, and push rod and sliding tray sliding connection.
Preferably, the number of the swing rods is two, and a pull rod is arranged between the two swing rods.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the invention, the positioning device is matched with the pressing device, the ball valve is fixed under the action of the spring, so that the axial force applied when the ball valve is fixed is reduced, and the deformation and damage of the ball valve are avoided; and the arrangement of the inflating device and the checking device is convenient for detecting whether the ball valve leaks air or not.
2. In the invention, the opposite ends of the positioning block and the pressing block are in the shape of the circular truncated cone, so that ball valves with different inner diameters can be conveniently fixed, meanwhile, the sealing performance during the fixing of the ball valves is improved, and the detection accuracy is improved.
3. According to the invention, the arrangement of the blowing dragon is convenient for visually observing whether the ball valve leaks air or not.
4. According to the invention, the arrangement of the swing rod and the push rod facilitates the movement of the pressing block, and the working efficiency of workers is improved.
Drawings
Fig. 1 is an isometric view of the present invention.
FIG. 2 is a cut-away front isometric view of the present invention.
Figure 3 is a cutaway top isometric view of the present invention.
FIG. 4 is a front perspective view of the inflator of the present invention.
The labels in the figure are: the device comprises a base 1, an air charging device 2, a piston cylinder 201, a piston plate 202, a piston rod 203, a fixing plate 3, a fixing block 4, a spring 5, a connecting pipe 6, a positioning block 7, an air outlet hole 8, a blowing device 9, a pressing block 10, an air inlet hole 11, a push plate 12, a swing rod 13, a push rod 14 and a pull rod 15.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments.
Example 1:
by figure 1, a ball valve leakproofness detection device for natural gas, including base 1, positioner, closing device and aerating device 2, be equipped with fixed plate 3 on the base 1, positioner and 3 fixed connection of fixed plate, the last verifying attachment that is equipped with of positioner, the other end of base 1 is equipped with fixed block 4, fixed block 4 keeps away from fixed plate 3's one end and aerating device 2 fixed connection, by figure 2, figure 3 gives, set up the holding tank of opening towards fixed plate 3 on the fixed block 4, closing device and holding tank sliding connection, and be equipped with spring 5 between the bottom of closing device and holding tank, closing device keeps away from positioner's one end and is equipped with connecting pipe 6, the other end of connecting pipe 6 runs through fixed block 4 and with aerating device 2 fixed connection.
The working principle is as follows: remove closing device, closing device compresses spring 5, the increase of distance between closing device and the positioner, install the one end of ball valve on the positioner, loosen closing device, closing device inserts the other end of ball valve under spring 5's effect, and it is fixed with the ball valve, use aerating device 2 to inflate the ball valve through connecting pipe 6, if gas leakage appears in the ball valve, gas in the ball valve can get into verifying attachment, can confirm whether gas leakage of ball valve through observing verifying attachment.
Example 2:
on the basis of embodiment 1, preferably, as shown in fig. 2 and 3, the positioning device includes a cylindrical positioning block 7, an air outlet 8 is formed in the positioning block 7, the air outlet 8 is communicated with the inspection device, and one end of the positioning block 7, which is far away from the inspection device, is in a circular truncated cone shape. The pressing device comprises a cylindrical pressing block 10, the pressing block 10 is coaxial with the positioning block 7, an air inlet 11 is formed in the pressing block 10, the air inlet 11 is communicated with the connecting pipe 6, and one end, close to the positioning block 7, of the pressing block 10 is in a circular truncated cone shape.
The working principle is as follows: one end of the ball valve is arranged on the positioning block 7, the other end of the ball valve is arranged on the pressing block 10, and if the ball valve leaks air, the air inlet hole 11 is communicated with the air outlet hole 8.
Example 3:
this embodiment is based on embodiment 2, and preferably, as shown in fig. 2, the inspection device comprises a blowing dragon 9, and the blowing dragon 9 is communicated with the air outlet 8. When the ball valve leaked gas, gas in the ball valve got into through venthole 8 and blows in dragon 9, blows dragon 9 and takes place deformation, can the visual observation ball valve leak gas or not.
Example 4:
on the basis of embodiment 3, preferably, as shown in fig. 4, the inflation device 2 includes a piston cylinder 201, a piston plate 202, and a piston rod 203, the piston cylinder 201 is fixedly connected to the connection pipe 6, the piston plate 202 is slidably connected to the piston cylinder 201, a check valve having an opening facing the connection pipe 6 is disposed on the piston plate 202, the piston plate is fixedly connected to the piston rod 203, the other end of the piston rod 203 penetrates through the piston cylinder 201, and a push plate 12 is disposed, and an air inlet 11 is disposed at one end of the fixed cylinder, which is far away from the connection pipe 6.
The working principle is as follows: pushing the push plate 12, the push plate 12 drives the piston plate 202 to move through the piston rod 203, meanwhile, the check valve is closed, the piston plate 202 pushes the gas in the piston cylinder 201 into the connecting pipe 6, and the gas enters the ball valve through the gas inlet 11.
Example 5:
on the basis of embodiment 4, it is preferable that, as shown in fig. 1 and fig. 2, a sliding groove communicated with the accommodating groove is formed in the fixing block 4, a swing rod 13 is hinged to the fixing block 4, a sliding groove is formed in the swing rod 13, a push rod 14 is arranged on the pressing block 10, the push rod 14 is slidably connected with the sliding groove, and the push rod 14 is slidably connected with the sliding groove. The number of the swing rods 13 is two, and a pull rod 15 is arranged between the two swing rods 13.
The working principle is as follows: during the use, pulling pull rod 15, pull rod 15 drives the pendulum rod 13 swing, and pendulum rod 13 drives push rod 14 and moves, and push rod 14 drives compact heap 10 and moves, and compact heap 10 compresses spring 5, installs the one end of ball valve on locating piece 7, loosens pull rod 15, and spring 5 drives compact heap 10 and moves, and compact heap 10 inserts the other end of ball valve, fixes the ball valve.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The utility model provides a ball valve leakproofness detection device for natural gas, which comprises a base (1), positioner, closing device and aerating device (2), a serial communication port, be equipped with fixed plate (3) on base (1), positioner and fixed plate (3) fixed connection, the last verifying attachment that is equipped with of positioner, the other end of base (1) is equipped with fixed block (4), the one end and aerating device (2) fixed connection of fixed plate (3) are kept away from in fixed block (4), set up the holding tank of opening towards fixed plate (3) on fixed block (4), closing device and holding tank sliding connection, and be equipped with spring (5) between the bottom of closing device and holding tank, the one end that closing device kept away from positioner is equipped with connecting pipe (6), the other end of connecting pipe (6) runs through fixed block (4) and with aerating device (2) fixed connection.
2. The tightness detection device of the ball valve for the natural gas according to claim 1, characterized in that the positioning device comprises a cylindrical positioning block (7), an air outlet (8) is formed in the positioning block (7), the air outlet (8) is communicated with the detection device, and one end of the positioning block (7) far away from the detection device is in a shape of a circular truncated cone.
3. The tightness detection device of the ball valve for the natural gas according to the claim 1, characterized in that, the detection device comprises a blowing dragon (9), and the blowing dragon (9) is communicated with the air outlet hole (8).
4. The tightness detection device of the ball valve for the natural gas as claimed in claim 1, wherein the compressing device comprises a cylindrical compressing block (10), the compressing block (10) is coaxial with the positioning block (7), an air inlet (11) is formed in the compressing block (10), the air inlet (11) is communicated with the connecting pipe (6), and one end, close to the positioning block (7), of the compressing block (10) is in a circular truncated cone shape.
5. The device for detecting the sealing performance of the ball valve for the natural gas as claimed in claim 1, wherein the inflating device (2) comprises a piston cylinder (201), a piston plate (202) and a piston rod (203), the piston cylinder (201) is fixedly connected with the connecting pipe (6), the piston plate (202) is slidably connected with the piston cylinder (201), a one-way valve with an opening facing the connecting pipe (6) is arranged on the piston plate (202), the piston plate is fixedly connected with the piston rod (203), the other end of the piston rod (203) penetrates through the piston cylinder (201) and is provided with a push plate (12), and an air inlet hole (11) is formed in one end, away from the connecting pipe (6), of the fixing cylinder.
6. The device for detecting the sealing performance of the natural gas ball valve is characterized in that a sliding groove communicated with the accommodating groove is formed in the fixing block (4), a swing rod (13) is hinged to the fixing block (4), a sliding groove is formed in the swing rod (13), a push rod (14) is arranged on the pressing block (10), the push rod (14) is connected with the sliding groove in a sliding mode, and the push rod (14) is connected with the sliding groove in a sliding mode.
7. The tightness detection device of a ball valve for natural gas according to claim 6, characterized in that there are two swing rods (13), and a pull rod (15) is disposed between the two swing rods (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110174052.0A CN112924100A (en) | 2021-02-06 | 2021-02-06 | Ball valve leakproofness detection device for natural gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110174052.0A CN112924100A (en) | 2021-02-06 | 2021-02-06 | Ball valve leakproofness detection device for natural gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112924100A true CN112924100A (en) | 2021-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110174052.0A Pending CN112924100A (en) | 2021-02-06 | 2021-02-06 | Ball valve leakproofness detection device for natural gas |
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| Country | Link |
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| CN (1) | CN112924100A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115597783A (en) * | 2022-10-25 | 2023-01-13 | 张家港市赛斯机械密封有限公司（Cn） | Online leakage detection device and method for mechanical seal assembly |
Citations (6)
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| JPH07317997A (en) * | 1994-05-23 | 1995-12-08 | Kanto Auto Works Ltd | Gas filling chuck |
| CN204679225U (en) * | 2015-06-26 | 2015-09-30 | 宁波市宇华电器有限公司 | Press-down type ball valve proving installation |
| CN108871707A (en) * | 2018-08-22 | 2018-11-23 | 邹凯 | A kind of leakage detection apparatus of natural gas ball valve |
| CN109313100A (en) * | 2016-06-30 | 2019-02-05 | 株式会社开滋 | Valve pressure-proof inspection device and its inspection method and hydrogen detection unit |
| CN209181978U (en) * | 2019-01-04 | 2019-07-30 | 南宁三燃液化气有限公司 | Gas tank leak-checking apparatus |
| CN209727814U (en) * | 2019-03-26 | 2019-12-03 | 郭宏冉 | A kind of water pipe anti-freezing testing tool of architectural engineering |
-
2021
- 2021-02-06 CN CN202110174052.0A patent/CN112924100A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07317997A (en) * | 1994-05-23 | 1995-12-08 | Kanto Auto Works Ltd | Gas filling chuck |
| CN204679225U (en) * | 2015-06-26 | 2015-09-30 | 宁波市宇华电器有限公司 | Press-down type ball valve proving installation |
| CN109313100A (en) * | 2016-06-30 | 2019-02-05 | 株式会社开滋 | Valve pressure-proof inspection device and its inspection method and hydrogen detection unit |
| CN108871707A (en) * | 2018-08-22 | 2018-11-23 | 邹凯 | A kind of leakage detection apparatus of natural gas ball valve |
| CN209181978U (en) * | 2019-01-04 | 2019-07-30 | 南宁三燃液化气有限公司 | Gas tank leak-checking apparatus |
| CN209727814U (en) * | 2019-03-26 | 2019-12-03 | 郭宏冉 | A kind of water pipe anti-freezing testing tool of architectural engineering |
Non-Patent Citations (1)
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| 严正等: "《多媒体学习》", 31 January 2006, 商务印书馆 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115597783A (en) * | 2022-10-25 | 2023-01-13 | 张家港市赛斯机械密封有限公司（Cn） | Online leakage detection device and method for mechanical seal assembly |
| CN115597783B (en) * | 2022-10-25 | 2024-03-29 | 张家港市赛斯机械密封有限公司 | Online leakage detection device and method for mechanical seal assembly |
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