CN205424267U - Gas piping presses plugging device in area - Google Patents
Gas piping presses plugging device in area Download PDFInfo
- Publication number
- CN205424267U CN205424267U CN201620209724.1U CN201620209724U CN205424267U CN 205424267 U CN205424267 U CN 205424267U CN 201620209724 U CN201620209724 U CN 201620209724U CN 205424267 U CN205424267 U CN 205424267U
- Authority
- CN
- China
- Prior art keywords
- gas
- box body
- gas piping
- piping
- leakage point
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
- 239000007789 gas Substances 0.000 claims abstract description 76
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 47
- 238000009434 installation Methods 0.000 claims abstract description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 21
- 238000009792 diffusion process Methods 0.000 claims description 13
- 210000003141 lower extremity Anatomy 0.000 claims description 3
- 239000003034 coal gas Substances 0.000 abstract description 21
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000003466 welding Methods 0.000 abstract description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 5
- 239000001301 oxygen Substances 0.000 abstract description 5
- 229910052760 oxygen Inorganic materials 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 2
- 229910001873 dinitrogen Inorganic materials 0.000 abstract 5
- 239000003245 coal Substances 0.000 abstract 1
- 238000004880 explosion Methods 0.000 abstract 1
- 238000010304 firing Methods 0.000 abstract 1
- 239000003595 mist Substances 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004200 deflagration Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000004224 protection Effects 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
Landscapes
- Feeding And Controlling Fuel (AREA)
Abstract
The utility model provides a gas piping presses plugging device in area, belongs to gas piping maintenance of equipment technical field for take the pressure leaking stoppage to gas piping. Its technical scheme is: the utility model discloses a box body cover on gas leakage point, on the box body installation nitrogen gas inflation valve with diffuse the valve, fill into nitrogen gas in to the box body through the nitrogen gas inflation valve before the shutoff gas leakage point, will wrap up the interior oxygen of box body of gas leakage point and displace out, the box body is interior to have only coal gas and nitrogen gas, then is connected the lower extreme of box body with gas piping outer wall welding, reveals some shutoff with the box body with gas piping. The utility model discloses can carry out the shutoff to gas leakage point under the gas piping normal operating condition, plugging device is full of the mist of coal gas and nitrogen gas all the time when the electric welding operation, can avoid taking place the coal air explosion accident of firing, has guaranteed the security and the reliability of shutoff operation, the utility model discloses the normal operating that can keep gas piping, the coal gas that can not influence other production lines is supplied with, has apparent economic benefits.
Description
Technical field
This utility model relates to a kind of device that gas piping carries out pressure sealing, belongs to gas piping maintenance of equipment technical field.
Background technology
Coal gas is the energy conventional in industry and people's lives, in coal gas, main component carbon monoxide has colourless, tasteless, inflammable, explosive chemical characteristic, therefore in conveying course of gas, there is the biggest danger, once occur gas leak to be likely to cause great safety in production casualty accident.In metallurgy industry, the coal gas that blast furnace, converter, coke oven produce in producing can be transported in different systems apply by pipe network.The pipeline of gaspipe network also exists parallel connection, interlaced mode of connecting, and glasses valve switching occurs to need to carry out pipe network during gas leak, or uses installation blind plate mode effectively to cut off gas piping.Because gaspipe network connection is intricate, it is likely to after gas leakage point is effectively cut off affect other pipeline connected, causes other production line to stop production, cause huge economic loss.And owing to coal gas has inflammable, explosive chemical characteristic, use electric welding non-stop plugging can cause serious accident at gas leakage point, it is currently the forbidden zone of closure gas piping leak point, does not has entity and individual to attempt.The most how quick blocking gas leakage point, the coal gas supply simultaneously not interfering with again other production line is technical staff and maintainer problem demanding prompt solution.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of gas piping tape-pressure leakage clogging device, this device can carry out electric welding closure operation at gas pipeline leakage point in the case of not stopping carrying coal gas, gas leakage point is effectively blocked, does not the most affect the coal gas conveying to other production line.
The technical scheme solving above-mentioned technical problem is:
A kind of gas piping tape-pressure leakage clogging device, it is a rectangle box body, box body is welded to form by end face, vertical plates on both sides, two ends top board, vertical plates on both sides is along gas piping length direction, two ends top board is vertical with gas piping length direction, the bottom of two ends top board is circular arc, the radian of circular arc matches with the circumference arcs of gas piping, end face is positioned at the top of gas leakage point, the lower limb of vertical plates on both sides and two ends top board is welded to connect with gas piping, vertical plates on both sides is installed nitrogen charge valve, end face is installed diffusion valve.
The area that above-mentioned gas piping tape-pressure leakage clogging device, described vertical plates on both sides and two ends top board surround is more than the area of gas leakage point.
The beneficial effects of the utility model are:
This utility model is a rectangle box body, box body covers on gas leakage point, nitrogen charge valve and diffusion valve are installed on box body, in box body, nitrogen it is filled with by nitrogen charge valve before closure gas leakage point, replacement of oxygen in the box body of parcel gas leakage point is gone out, only have coal gas and nitrogen in box body, then the lower end of box body is welded to connect with gas piping outer wall, with box body, gas piping leak point is blocked.Gas leakage point can be blocked under gas piping normal operation by this utility model, guarantee that plugging device is full of the mixed gas of coal gas and nitrogen all the time when electric welding field, meet coal gas region security operating regulation, can avoid coal gas deflagration accident having, it is ensured that the safety and reliability of closure operation；This utility model can keep the properly functioning of gas piping, does not interferes with the coal gas supply of other production line, it is ensured that being smoothed out of production, has significant economic benefit.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure, labelling is as follows: end face 1, riser 2, top board 3, nitrogen charge valve 4, diffusion valve 5, gas leakage point 6, gas piping 7.
Detailed description of the invention
This utility model is made up of end face 1, riser 2, top board 3, nitrogen charge valve 4, diffusion valve 5.
Showing in figure, end face 1, riser 2, top board 3 form a rectangle box body.Box body is welded to form by end face 1, vertical plates on both sides 2, two ends top board 3, and vertical plates on both sides 2 is along gas piping 7 length direction, and two ends top board 3 is vertical with gas piping 7 length direction.
Showing in figure, the bottom of two ends top board 3 is circular arc, and the radian of circular arc matches with the circumference arcs of gas piping 7, and the lower limb of vertical plates on both sides and two ends top board is welded to connect with gas piping.
Showing in figure, end face 1 is positioned at area that the top of gas leakage point 6, vertical plates on both sides 2 and two ends top board 3 the surround area more than gas leakage point 6.
Figure shows, riser 2 is installed nitrogen charge valve 4, end face 1 is installed diffusion valve 5.
An embodiment of the present utility model is mounted with two diffusion valves 5.The effect of nitrogen charge valve 4 and diffusion valve 5 is to be filled with nitrogen in box body by nitrogen charge valve 4 before closure gas leakage point 6, and by diffusion valve 5, the replacement of oxygen in the box body of parcel gas leakage point 6 is gone out, coal gas and nitrogen is only had in last box body, meet coal gas region security operating regulation, be to avoid coal gas blast accident carrying out weld job.
Construction procedure of the present utility model is as follows:
A, isolation area is set for gas piping 7 near zone.Handling associated safety operation formality, prepare gas leak point 6 and block the related tool of operation, air respiratorresuscitator debugging preparation puts in place, and gas cylinder prepares abundance, and the supervision of various coal gas area protections puts in place.
B, operating personnel wear air respiratorresuscitator and gas leakage point 6 is carried out sealing region size appraise and decide, and appraise and decide gas piping 7 diameter, the vertical plates on both sides 2 determining box body with this and the size of two ends top board 3.
C, operating personnel carry out vertical plates on both sides 2 and two ends top board 3 blanking according to the mensuration sealing region size of wall thickness, pipe diameter, make box body, install nitrogen charge valve 4, diffusion valve 5 on box body simultaneously.
D, operating personnel wear air respiratorresuscitator and gas leak point 6 are carried out preliminary closure, leakage situation according to gas leak point 6 selects the mode such as timber or iron lady to carry out preliminary closure, guarantee that gas leak amount excessive will not affect welded and installed box body, gas piping 7 operating pressure ensures malleation, and Stress control is at more than 3kpa.Welding tool prepares to put in place, and electric welding machine ground wire is arranged on gas piping 7 isoelectric level body.
E, box body is installed on the gas leak point 6 of gas piping 7, uses the lifting lockset such as jack to carry out on gas piping 7 preliminary fixing.Open nitrogen charge valve 4, be filled with nitrogen toward plugging device, open diffusion valve 5, the coal gas in box body, air are purged, displacement.Use oxygen-containing instrument that the oxygen content in box body is detected.There is no air in guaranteeing box body, only exist the mixed gas of coal gas and nitrogen.
F, conciliation nitrogen charge valve 4, the opening degree size of diffusion valve 5.Start box body is welded with gas piping 7.
G. welded box body, closed diffusion valve 5, open big nitrogen charge valve 4, the box body of welded and installed on gas piping 7 is carried out inflated with nitrogen leak test.
Claims (2)
1. a gas piping tape-pressure leakage clogging device, it is characterized in that: it is a rectangle box body, box body is by end face (1), vertical plates on both sides (2), two ends top board (3) is welded to form, vertical plates on both sides (2) is along gas piping (7) length direction, two ends top board (3) is vertical with gas piping (7) length direction, the bottom of two ends top board (3) is circular arc, the radian of circular arc matches with the circumference arcs of gas piping (7), end face (1) is positioned at the top of gas leakage point (6), the lower limb of vertical plates on both sides (2) and two ends top board (3) is welded to connect with gas piping (7), at riser (2) upper installation nitrogen charge valve (4), end face (1) is installed diffusion valve (5).
Gas piping tape-pressure leakage clogging device the most according to claim 1, it is characterised in that: the area that described vertical plates on both sides (2) and two ends top board (3) surround is more than the area of gas leakage point (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620209724.1U CN205424267U (en) | 2016-03-18 | 2016-03-18 | Gas piping presses plugging device in area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620209724.1U CN205424267U (en) | 2016-03-18 | 2016-03-18 | Gas piping presses plugging device in area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205424267U true CN205424267U (en) | 2016-08-03 |
Family
ID=56520247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620209724.1U Expired - Fee Related CN205424267U (en) | 2016-03-18 | 2016-03-18 | Gas piping presses plugging device in area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205424267U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355630A (en) * | 2017-09-05 | 2017-11-17 | 安徽晋煤中能化工股份有限公司 | Ring pads seal diversion unit valve |
| CN109268696A (en) * | 2018-10-29 | 2019-01-25 | 南京钢铁股份有限公司 | The online trapping device of coal gas drainer downpipe horn mouth and craft leakage mending method |
| CN110864184A (en) * | 2019-08-20 | 2020-03-06 | 中海油(福建)应急维修有限责任公司 | Low-temperature pipeline flange cladding device and method |
| CN110873255A (en) * | 2019-08-20 | 2020-03-10 | 中海油(福建)应急维修有限责任公司 | Low-temperature pipeline flange cladding device and method |
-
2016
- 2016-03-18 CN CN201620209724.1U patent/CN205424267U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355630A (en) * | 2017-09-05 | 2017-11-17 | 安徽晋煤中能化工股份有限公司 | Ring pads seal diversion unit valve |
| CN109268696A (en) * | 2018-10-29 | 2019-01-25 | 南京钢铁股份有限公司 | The online trapping device of coal gas drainer downpipe horn mouth and craft leakage mending method |
| CN110864184A (en) * | 2019-08-20 | 2020-03-06 | 中海油(福建)应急维修有限责任公司 | Low-temperature pipeline flange cladding device and method |
| CN110873255A (en) * | 2019-08-20 | 2020-03-10 | 中海油(福建)应急维修有限责任公司 | Low-temperature pipeline flange cladding device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 067102 A block 520, Luanhe town finance square, Shuangluan District, Chengde, Hebei Patentee after: CHENGDE BRANCH OF HBIS Group Address before: 067102 Luanhe town finance square, Shuangluan District, Shijiazhuang, Hebei, Hebei iron and steel Limited by Share Ltd Chengde branch Patentee before: HEBEI IRON AND STEEL Co.,Ltd. CHENGDE BRANCH |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160803 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |