CN109732176A - A kind of cutting blocks the support base and its method of Large Diameter Pipeline gas piping - Google Patents
A kind of cutting blocks the support base and its method of Large Diameter Pipeline gas piping Download PDFInfo
- Publication number
- CN109732176A CN109732176A CN201910063012.1A CN201910063012A CN109732176A CN 109732176 A CN109732176 A CN 109732176A CN 201910063012 A CN201910063012 A CN 201910063012A CN 109732176 A CN109732176 A CN 109732176A
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- China
- Prior art keywords
- gas piping
- cutting
- iron plate
- support base
- groove
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Links
- 238000005520 cutting process Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 46
- 229910052742 iron Inorganic materials 0.000 claims abstract description 23
- 239000007789 gas Substances 0.000 claims description 84
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 239000000571 coke Substances 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000005272 metallurgy Methods 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 239000003034 coal gas Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The present invention relates to support bases and its method that a kind of cutting blocks Large Diameter Pipeline gas piping, belong to metallurgy industry coke oven gas pipe equipment technical field.Technical solution is: support base is one piece of rectangle iron plate with V-groove, and the side of rectangle iron plate is arranged in V-groove, and the angle of V-groove is 90-120 °, 2-3 times with a thickness of gas piping (1) wall thickness of rectangle iron plate.The beneficial effects of the present invention are: needing to weld support base in the semi-circumference disconnected in gas piping, crane lifting operation is substituted, method is simple, securely and reliably, invests very little, effect is good.It is able to solve the problem of gas piping cutting blocks in narrow space.
Description
Technical field
The present invention relates to support bases and its method that a kind of cutting blocks Large Diameter Pipeline gas piping, belong to metallurgy industry coke oven
Gas piping equipment technical field.
Background technique
Smelter generally all more coke ovens, every coke oven are provided with gas cleaning system, in coke oven gas purification system
Scrubbing tower coal gas inlet and outlet pipe diameter be 1200mm, belong to Large Diameter Pipeline gas piping, to coke oven and gas purification system
When system upgrading, after needing gas piping cutting off closure, re-connect.During disconnecting, blocking gas piping,
According to conventional method, need to need to cut off the gas piping blocked and fastened pipeline with wirerope, be used in combination using crane power-assisted
Crane fixes gas piping, then completes cutting with electric welding, gas cutting and block.Due in gas cleaning system gas piping,
Jet chimney, nitrogen pipeline and each washing liquid lines stand in great numbers, and each pipeline corridor is more, has height to have short, and operation field is narrow, crane
It cannot be introduced into field operation, cause the cutting and closure of completion gas piping that can not be successfully.
Summary of the invention
The object of the present invention is to provide support bases and its method that a kind of cutting blocks Large Diameter Pipeline gas piping, can replace
Crane conveniently completes the cutting and closure of gas piping, solves the problems, such as background technique.
The technical scheme is that
A kind of cutting blocks the support base of Large Diameter Pipeline gas piping, and support base is one piece of rectangle iron plate with V-groove, V-groove
The side of rectangle iron plate is set, and the angle of V-groove is 90-120 °.
2-3 times with a thickness of Gas Pipe Wall Thickness of the rectangle iron plate.
A method of cutting blocks Large Diameter Pipeline gas piping comprising the steps of:
1. being cleaned to needing to cut logical steam or nitrogen in the gas piping blocked；
2. determining that gas piping needs to disconnect the specific location blocked, and drawn on determining position around the circumference of gas piping
Circumference is cut out；
3. the semicircle for cutting circumference is divided into several Along ents, and drawn and cutting circumference on each Along ent
Vertical vertical line；
4. a support base is respectively welded on each Along ent, the support base is one piece with a thickness of Gas Pipe Wall Thickness 2-
3 times of rectangle iron plate, the side of rectangle iron plate are equipped with V-groove, and the angle of V-groove is 90-120 °, and the V-groove of rectangle iron plate is just
To cutting circumference, rectangle iron plate is welded on gas piping along vertical line；
It is disconnected 5. being cut gas piping along the cutting circumference of gas piping with gas welding；
6. being inserted into one block of blind plate, the material and the material phase of gas piping of the blind plate between the gas piping that cutting disconnects
Together, the diameter of blind plate is greater than the diameter of gas piping；
7. the gas piping after blind plate is disconnected with cutting welds together, i.e. the cutting of completion gas piping blocks.
The beneficial effects of the present invention are: needing to weld support base in the semi-circumference disconnected in gas piping, substitution crane is risen
Crane operation, method is simple, securely and reliably, invests very little, effect is good.The gas piping cutting in narrow space is able to solve to block
The problem of.
Detailed description of the invention
Fig. 1 is main view of the present invention；
Fig. 2 is top view of the present invention；
Fig. 3 is clamping support schematic diagram；
Fig. 4 is cross-sectional view of the present invention；
In figure: gas piping 1, support base 2, blind plate 3, handle 4.
Specific embodiment
Below in conjunction with attached drawing, by example, the invention will be further described.
Referring to attached drawing 2, a kind of cutting blocks the support base of Large Diameter Pipeline gas piping, and support base is one piece with V-groove
The side of rectangle iron plate is arranged in rectangle iron plate, V-groove, and the angle of V-groove is 90-120 °.
2-3 times with a thickness of 1 wall thickness of gas piping of the rectangle iron plate.
Specific embodiment:
In the present embodiment, referring to attached drawing 1-4, specifically includes the following steps:
(1) cleaning of gas piping；
A. the valve for needing to cut off 1 both ends of gas piping blocked is closed；
B. lead to steam into the gas piping 1 for needing cutting to block or nitrogen is cleaned, is vented；
C. through coal gas protection station personnel detection, meet the condition of getting angry.
(2) scribing line of gas piping
A. determine that gas piping 1 needs to disconnect the specific location blocked, and in determining position, around the circumference of gas piping 1
Draw cutting circumference；
B. the semicircle for cutting circumference is divided into four Along ents, draws and cut as solder joint, and on each Along ent
The vertical vertical line of cyclotomy contour；
(3) production blocks the blind plate of gas piping；
With with the consistent iron plate of 1 material of gas piping, the blind plate 3 for being slightly larger than 1 diameter of gas piping is made, and weld on blind plate 3
Connect a handle 4.
(4) gas piping support base is made
A. the rectangle iron plate for using 2-3 times of 1 wall thickness of gas piping, as support base 2；
B. the V-groove that an interior angle is 90-120 °, generally symmetrical structure is respectively cut in a side of rectangle iron plate；
(5) support base is welded
A. a support base 2 is respectively welded on four pads on the cutting circumference of gas piping 1, and makes support base 2
On V-groove face cut circumference；
It b. is vertical arrangement if necessary to the gas piping 1 that cutting blocks, four support bases 2 can be welded on gas piping 1
On any semi circular surface:
C. the gas piping 1 blocked if necessary to cutting is lateral arrangement, and four support bases 2 should be welded under gas piping 1
On semi circular surface, on the one hand prevents gas piping 1 from sinking, be on the other hand conducive to the placement and welding of blind plate 3；
(6) cut off turn on the gas pipeline
Circumference is disconnected according to the cutting finished, is cut open gas piping 1 with gas welding.
(7) it is inserted into the blind plate of gas piping
Hand takes the handle 4 of blind plate, and the blind plate 3 made is inserted into along 1 gap of gas piping cut open.
(8) welding blocks gas piping
The gas piping 1 that the blind plate 3 of insertion is disconnected with cutting respectively is welded, is blocked, the cutting of gas piping 1 is completed
Closure task is ready for the reconnect of gas piping 1；
(9) gas piping is reconnected
Other secure segments aperture again of the gas piping 1 after blocking is being cleaned, and is connecting the gas piping of needs.
Claims (3)
1. the support base that a kind of cutting blocks Large Diameter Pipeline gas piping, it is characterised in that: support base is one piece of square with V-groove
The side of rectangle iron plate is arranged in shape iron plate, V-groove, and the angle of V-groove is 90-120 °.
2. the support base that a kind of cutting according to claim 1 blocks Large Diameter Pipeline gas piping, it is characterised in that: the square
2-3 times with a thickness of gas piping (1) wall thickness of shape iron plate.
3. a kind of method that cutting blocks Large Diameter Pipeline gas piping, it is characterised in that comprise the steps of:
1. being cleaned to needing to cut logical steam or nitrogen in the gas piping (1) blocked；
2. determining that gas piping (1) needs to disconnect the specific location blocked, and around gas piping (1) on determining position
Circumference draws cutting circumference；
3. the semicircle for cutting circumference is divided into several Along ents, and drawn and cutting circumference on each Along ent
Vertical vertical line；
4. a support base (2) is respectively welded on each Along ent, the support base (2) is one piece with a thickness of gas piping
(1) 2-3 times of wall thickness of rectangle iron plate, the side V-groove of rectangle iron plate, the angle of V-groove are 90-120 °, the V-type of rectangle iron plate
Slot face cuts circumference, and rectangle iron plate is welded on gas piping (1) along vertical line；
It is disconnected 5. being cut gas piping (1) along the cutting circumference of gas piping (1) with gas welding；
6. being inserted into one piece of blind plate (3), the material and gas piping of the blind plate (3) between the gas piping (1) that cutting disconnects
(1) material is identical, and the diameter of blind plate (3) is greater than the diameter of gas piping (1)；
7. the gas piping (1) after blind plate (3) is disconnected with cutting welds together, i.e. the cutting envelope of completion gas piping (1)
It is stifled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910063012.1A CN109732176B (en) | 2019-01-23 | 2019-01-23 | Supporting seat for cutting off and plugging large-diameter gas pipeline and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910063012.1A CN109732176B (en) | 2019-01-23 | 2019-01-23 | Supporting seat for cutting off and plugging large-diameter gas pipeline and method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109732176A true CN109732176A (en) | 2019-05-10 |
| CN109732176B CN109732176B (en) | 2024-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910063012.1A Active CN109732176B (en) | 2019-01-23 | 2019-01-23 | Supporting seat for cutting off and plugging large-diameter gas pipeline and method thereof |
Country Status (1)
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| CN (1) | CN109732176B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111003376A (en) * | 2019-11-16 | 2020-04-14 | 宣化钢铁集团有限责任公司 | Safe liquid seal device for full flow pipe of storage tank and installation method |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111003376A (en) * | 2019-11-16 | 2020-04-14 | 宣化钢铁集团有限责任公司 | Safe liquid seal device for full flow pipe of storage tank and installation method |
| CN111003376B (en) * | 2019-11-16 | 2024-06-25 | 宣化钢铁集团有限责任公司 | Storage tank full-flow pipe safety liquid seal device and installation method |
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| Publication number | Publication date |
|---|---|
| CN109732176B (en) | 2024-04-09 |
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