CN208443544U - A kind of detection device of pipeline welding airtightness - Google Patents
A kind of detection device of pipeline welding airtightness Download PDFInfo
- Publication number
- CN208443544U CN208443544U CN201821268853.3U CN201821268853U CN208443544U CN 208443544 U CN208443544 U CN 208443544U CN 201821268853 U CN201821268853 U CN 201821268853U CN 208443544 U CN208443544 U CN 208443544U
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- Prior art keywords
- ring
- endless tube
- upper half
- tube
- half ring
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Abstract
The utility model discloses a kind of detection devices of pipeline welding airtightness, including upper half ring and lower semi-ring, endless tube is embedded in the upper half ring ring body, the air inlet pipe that inner end is connected to upper endless tube is installed on the right side of the upper half ring periphery, the air inlet pipe outer end is fixedly installed with check valve, the inner surface of the upper half ring is installed with seal rubber shell, lower endless tube is embedded in the ring body of the lower semi-ring, the exhaust pipe that inner end is connected to lower endless tube is installed on the left of the lower semi-ring periphery, the exhaust pipe outer end is fixedly installed with exhaust valve；It is installed by the combination of upper ring body and lower ring body, then internal duct is connected to, sealing structure is constituted by upper seal rubber shell, lower seal rubber shell-and-tube road body itself simultaneously, then pass through the pressurising into device, so that after reaching preset air pressure in device, by observing barometric variation, measurement weld whether gas leakage, easy to operate, effect is obvious.
Description
Technical field
The utility model relates to detection device technology field, specially a kind of detection device of pipeline welding airtightness.
Background technique
Natural gas is a kind of commonly used clean energy resource, and the transmission multi-pass of natural gas is crossed pipeline and transmitted, and by
In the limitation of production technology so that the length of pipeline can not a composition, so need to be welded by more root canal roads, thus
Reach requirement, the welding airtightness of pipeline was the guarantee for guaranteeing natural gas safe transmission at that time, but due to too long pipeline, was made
Obtaining common detection mode cannot be applicable in, therefore it is proposed that a kind of detection device of pipeline welding airtightness.
Utility model content
The purpose of this utility model is to provide a kind of detection devices of pipeline welding airtightness, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the utility model provides the following technical solutions: a kind of detection dress of pipeline welding airtightness
It sets, including upper half ring and lower semi-ring, endless tube is embedded in the upper half ring ring body, be installed on the right side of the upper half ring periphery interior
End is connected to the air inlet pipe of upper endless tube, and the air inlet pipe outer end is fixedly installed with check valve, and the inner surface of the upper half ring is installed with
Upper seal rubber shell is embedded with lower endless tube in the ring body of the lower semi-ring, inner end connection is installed on the left of the lower semi-ring periphery
The exhaust pipe of lower endless tube, the exhaust pipe outer end are fixedly installed with exhaust valve, inner end company are installed on the right side of the lower semi-ring periphery
The connecting pipe of logical lower endless tube, the connecting pipe outer end are fixedly installed with pressure gauge, and the lower half ring inner surface is installed with lower sealing
Rubber jar.
Preferably, in the upper half ring ring body be evenly distributed with gas-guide tube in lower semi-ring ring body, in the upper half ring
Gas-guide tube one end be connected to upper endless tube, the gas-guide tube other end in the upper half ring is connected in upper seal rubber shell shell, under described
Gas-guide tube one end in semi-ring is connected to lower endless tube, and the gas-guide tube other end in the lower semi-ring is connected in lower seal rubber shell shell.
Preferably, integrally formed with upper ear pawl on the outside of the both ends of the upper half ring, the upper ear pawl upper surface is vertically opened
Equipped with upper slot, integrally formed with lower ear pawl on the outside of the both ends of the lower semi-ring, the lower ear pawl lower surface is vertically offered
Through there is fastening bolt in lower slot, the upper slot and lower slot, the fastening bolt lower end is screwed with fastening nut.
Preferably, the relief tube that inner end is connected to upper endless tube is installed on the left of the periphery of the upper half ring, outside the relief tube
End is fixedly installed with relief valve.
Preferably, integrally formed with convex mouth, the convex mouth outer diameter is equal to upper endless tube internal diameter at the both ends of the lower endless tube.
Preferably, spring shim is successively arranged between the nut of the fastening bolt and upper slot slot bottom from top to bottom and is delayed
Gasket is rushed, is successively arranged buffering spacer and spring pad from top to bottom between the upper surface of the fastening nut and the slot bottom of lower slot
Piece.
Compared with prior art, the utility model has the following beneficial effects: the combination by upper ring body and lower ring body is installed, after
And be connected to internal duct, while sealing structure is constituted by upper seal rubber shell, lower seal rubber shell-and-tube road body itself, and
Afterwards by the pressurising into device, so that, by observing barometric variation, measurement weld is after reaching preset air pressure in device
No gas leakage, easy to operate, effect is obvious.
Detailed description of the invention
Fig. 1 is the utility model main cross section structure diagram；
Fig. 2 is the right schematic cross-sectional view of the utility model；
Fig. 3 is ear pawl and attachment structure schematic diagram at lower ear pawl on the utility model；
Fig. 4 is detail view at a in Fig. 1.
In figure: 1, upper half ring, 2, upper endless tube, 3, air inlet pipe, 4, check valve, 5, upper ear pawl, 6, lower ear pawl, 7, connecting pipe,
8, pressure gauge, 9, lower endless tube, 10, lower semi-ring, 11, lower seal rubber shell, 12, gas-guide tube, 13, exhaust valve, 14, exhaust pipe, 15,
Relief valve, 16, relief tube, 17, upper seal rubber shell, 18, upper slot, 19, fastening bolt, 20, spring shim, 21, cushion
Piece, 22, fastening nut, 23, lower slot, 24, convex mouth.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-4 is please referred to, the utility model provides a kind of technical solution: a kind of detection device of pipeline welding airtightness,
It is two main base structures of device, by combining the combination of realization device entirety, institute including upper half ring 1 and lower semi-ring 10
It states in 1 ring body of upper half ring and is embedded with endless tube 2, flow air-flow in the device, be installed with inner end on the right side of 1 periphery of upper half ring
The air inlet pipe 3 of endless tube 2 in connection, inside extraneous gas gatherer, 3 outer end of air inlet pipe is fixedly installed with check valve 4,
It avoiding after stopping supplying, device not can guarantee that pressure is constant, and the inner surface of the upper half ring 1 is installed with seal rubber shell 17,
Its evagination shell, cooperation pipeline constitutes cavity, facilitates inflation, be embedded with lower endless tube 9 in the ring body of the lower semi-ring 10, in connection
Endless tube 2 constitutes complete gas flow loop, so that gas is uniformly distributed in the device, is installed on the left of lower 10 periphery of semi-ring interior
End is connected to the exhaust pipe 14 of lower endless tube 9, and after detection, by gas discharge decompression in device, behaviour is accidentally injured when avoiding device is disassembled
Make personnel, 14 outer end of exhaust pipe is fixedly installed with exhaust valve 13, easy to operate using manually-operated gate, avoiding device test
When gas leakage, be installed with the connecting pipe 7 that inner end is connected to lower endless tube 9 on the right side of lower 10 periphery of semi-ring, by pressure pilot pressure table 8,
7 outer end of connecting pipe is fixedly installed with pressure gauge 8, detects to device internal pressure, the lower 10 inner surface card of semi-ring
Equipped with lower seal rubber shell 11, evagination shell, cooperation pipeline constitutes cavity, facilitates inflation.
Specifically, in 1 ring body of upper half ring be evenly distributed with gas-guide tube 12 in lower 10 ring body of semi-ring, it is described on
12 one end of gas-guide tube in semi-ring 1 is connected to upper endless tube 2, and 12 other end of gas-guide tube in the upper half ring 1 is connected to upper seal rubber
In 17 shell of shell, 12 one end of gas-guide tube in the lower semi-ring 10 is connected to lower endless tube 9, and the gas-guide tube 12 in the lower semi-ring 10 is another
End is connected in lower 11 shell of seal rubber shell, and the air-flow in upper endless tube 2 and lower endless tube 9 is imported upper seal rubber shell 17, lower sealing
The cavity that rubber jar 11 and pipeline are constituted, so that pressurising in cavity, the measurement of being sealed property.
Specifically, integrally formed with upper ear pawl 5 on the outside of the both ends of the upper half ring 1, upper 5 upper surface of ear pawl is perpendicular
To upper slot 18 is offered, the both ends outside of the lower semi-ring 10 is integrally formed with lower ear pawl 6, lower 6 lower surface of ear pawl
Lower slot 23 is vertically offered, running through in the upper slot 18 and lower slot 23 has fastening bolt 19, under the fastening bolt 19
End is screwed with fastening nut 22, facilitates the combination of upper half ring 1 and lower semi-ring 10 to install by upper ear pawl 5 and lower ear pawl 6, and passes through
Fastening bolt 19 and fastening nut 22 guarantee the stability of device combination.
Specifically, the relief tube 16 that inner end is connected to upper endless tube 2 is installed on the left of the periphery of the upper half ring 1, it is described to let out
16 outer end of pressure pipe is fixedly installed with relief valve 15, when pressurising is excessive in device, by relief tube 16 by air pressure guiding pressure release valve
15, then excess gas pressure is discharged by relief valve 15, avoids overload damage device.
Specifically, the both ends of the lower endless tube 9 are integrally formed with convex mouth 24,24 outer diameter of convex mouth is equal to upper endless tube
2 internal diameters, the air-tightness that endless tube 2 is connect with lower endless tube 9 in increase.
Specifically, being successively arranged spring pad from top to bottom between 18 slot bottom of nut and upper slot of the fastening bolt 19
Piece 20 and buffering spacer 20, are successively arranged slow from top to bottom between the upper surface of the fastening nut 22 and the slot bottom of lower slot 23
Gasket 21 and spring shim 20 are rushed, by spring shim 20 and buffering spacer 21, increases the compactness of connection, while avoiding damaging
Upper slot 18 and lower slot 23.
Working principle: in use, device is placed in weld to be detected, then upper half ring 1 combines fastening with lower semi-ring 10,
Upper endless tube 2 is connected to lower endless tube 9 at this time, the annular that lower seal rubber shell 11, upper seal rubber shell 17 and pipeline external surface are constituted
Chamber is formed, the pressurising into device by air inlet pipe 3, when relief valve 15 carries out pressure release, is stopped pressurising, is observed 8 pressure of air gauge
Transformation compares normally without gas leakage air pressure change, determines testing result.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of detection device of pipeline welding airtightness, including upper half ring (1) and lower semi-ring (10), it is characterised in that: described
It is embedded with endless tube (2) in upper half ring (1) ring body, inner end is installed on the right side of upper half ring (1) periphery and is connected to upper endless tube (2)
Air inlet pipe (3), air inlet pipe (3) outer end are fixedly installed with check valve (4), and the inner surface of the upper half ring (1) is installed with
Seal rubber shell (17) is embedded with lower endless tube (9) in the ring body of the lower semi-ring (10), card on the left of lower semi-ring (10) periphery
The exhaust pipe (14) of lower endless tube (9) is connected to equipped with inner end, exhaust pipe (14) outer end is fixedly installed with exhaust valve (13), described
The connecting pipe (7) that inner end is connected to lower endless tube (9), the fixed peace in connecting pipe (7) outer end are installed on the right side of lower semi-ring (10) periphery
Equipped with pressure gauge (8), lower semi-ring (10) inner surface is installed with lower seal rubber shell (11).
2. a kind of detection device of pipeline welding airtightness according to claim 1, it is characterised in that: the upper half ring
(1) it is evenly distributed with gas-guide tube (12) in ring body and in lower semi-ring (10) ring body, the gas-guide tube (12) in the upper half ring (1)
One end is connected to upper endless tube (2), and gas-guide tube (12) other end in the upper half ring (1) is connected in upper seal rubber shell (17) shell,
Gas-guide tube (12) one end in the lower semi-ring (10) is connected to lower endless tube (9), and the gas-guide tube (12) in the lower semi-ring (10) is another
One end is connected in lower seal rubber shell (11) shell.
3. a kind of detection device of pipeline welding airtightness according to claim 1, it is characterised in that: the upper half ring
(1) integrally formed with upper ear pawl (5) on the outside of both ends, upper ear pawl (5) upper surface vertically offers slot (18), institute
It states on the outside of the both ends of lower semi-ring (10) integrally formed with lower ear pawl (6), lower ear pawl (6) lower surface vertically offers lower slot
Running through in hole (23), the upper slot (18) and lower slot (23) has fastening bolt (19), fastening bolt (19) lower end spiral shell
Equipped with fastening nut (22).
4. a kind of detection device of pipeline welding airtightness according to claim 1, it is characterised in that: the upper half ring
(1) relief tube (16) that inner end is connected to upper endless tube (2) is installed on the left of periphery, relief tube (16) outer end is fixedly installed with
Relief valve (15).
5. a kind of detection device of pipeline welding airtightness according to claim 1, it is characterised in that: the lower endless tube
(9) integrally formed with convex mouth (24), convex mouth (24) outer diameter is equal to upper endless tube (2) internal diameter at both ends.
6. a kind of detection device of pipeline welding airtightness according to claim 3, it is characterised in that: the fastening bolt
(19) it is successively arranged spring shim (20) and buffering spacer (21) from top to bottom between nut and upper slot (18) slot bottom, it is described
Buffering spacer (21) and spring are successively arranged between the upper surface of fastening nut (22) and the slot bottom of lower slot (23) from top to bottom
Gasket (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821268853.3U CN208443544U (en) | 2018-07-30 | 2018-07-30 | A kind of detection device of pipeline welding airtightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821268853.3U CN208443544U (en) | 2018-07-30 | 2018-07-30 | A kind of detection device of pipeline welding airtightness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208443544U true CN208443544U (en) | 2019-01-29 |
Family
ID=65085507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821268853.3U Expired - Fee Related CN208443544U (en) | 2018-07-30 | 2018-07-30 | A kind of detection device of pipeline welding airtightness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208443544U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111141465A (en) * | 2019-12-31 | 2020-05-12 | 嘉兴学院 | Air tightness detection device for welding metal pipeline |
| CN113624422A (en) * | 2021-09-01 | 2021-11-09 | 广东益鑫源工程建设管理咨询有限公司 | Drainage pipeline air tightness detection system and detection method |
| CN116026536A (en) * | 2022-10-26 | 2023-04-28 | 苏州众铄汽车零部件有限公司 | Air tightness detection equipment of expansion kettle |
-
2018
- 2018-07-30 CN CN201821268853.3U patent/CN208443544U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111141465A (en) * | 2019-12-31 | 2020-05-12 | 嘉兴学院 | Air tightness detection device for welding metal pipeline |
| CN113624422A (en) * | 2021-09-01 | 2021-11-09 | 广东益鑫源工程建设管理咨询有限公司 | Drainage pipeline air tightness detection system and detection method |
| CN113624422B (en) * | 2021-09-01 | 2024-02-13 | 广东益鑫源工程建设管理咨询有限公司 | Drainage pipeline air tightness detection system and detection method |
| CN116026536A (en) * | 2022-10-26 | 2023-04-28 | 苏州众铄汽车零部件有限公司 | Air tightness detection equipment of expansion kettle |
| CN116026536B (en) * | 2022-10-26 | 2023-11-07 | 苏州众铄汽车零部件有限公司 | Air tightness detection equipment of expansion kettle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190129 Termination date: 20190730 |
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| CF01 | Termination of patent right due to non-payment of annual fee |