CN203131313U - Blind plate allowing convenient blocking and drawing in process of gas pipeline repair operation with gas - Google Patents
Blind plate allowing convenient blocking and drawing in process of gas pipeline repair operation with gas Download PDFInfo
- Publication number
- CN203131313U CN203131313U CN 201220671896 CN201220671896U CN203131313U CN 203131313 U CN203131313 U CN 203131313U CN 201220671896 CN201220671896 CN 201220671896 CN 201220671896 U CN201220671896 U CN 201220671896U CN 203131313 U CN203131313 U CN 203131313U
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- blind plate
- gas
- plate body
- gas pipeline
- bolt hole
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Abstract
A blinding plate allowing convenient blocking and drawing in the process of gas pipeline repair operation with gas comprises a handle, a blind plate body and a blind plate body sealing ring. The blind plate body is a circular annular iron plate, the handle is arranged on the blind plate body, and bolt holes are formed in the circular annular plate face of the blind plate at equal intervals. The blind plate is characterized in that the number of the bolt holes and the number of bolt holes formed in a gas pipeline flange are identical, and the hole diameter of each holt hole and the hole diameter of each bolt hole formed in the gas pipeline flange are identical. The radius of each concentric circle of the bolt holes and the radius of each concentric circle of the bolt holes formed in the gas pipeline flange are identical, each side face of the blind plate body with the holes is provided with a metal ring through spot welding, the inner diameter of each metal ring is equal to the flange sealing waterline of an operation point which the metal ring is matched with, and blind plate body sealing materials are attached to each metal ring. The other side, opposite to the handle, of the blind plate body is provided with three gaps, wherein each gap is formed through the fact that the connecting portion between the outer side of one bolt hole and the blind plate body is slit and open. The blinding plate allowing convenient blocking and drawing in the process of the gas pipeline repair operation with the gas can facilitate drawing and blocking, enables a valve needing to be examined and repaired to be disassembled or achieves gas point connection in the position of a manhole cover of a gas pipeline, and achieves the purpose that the problem of the metallurgical industry is efficiently and safely solved.
Description
Technical field
The utility model belongs to engineering original paper or parts, specifically is to say that belonging to is the joint connected element of pipeline.
Background technique
The operation of band coal gas is industry inevitable work in operation maintenance such as large-scale metallurgical enterprise, petroleum chemical enterprise, city gas company.Because the character that modernized large enterprise continuity is produced has determined the operation of most band coal gas to carry out under the situation that the user does not stop production.Wherein, band coal gas block up, take out the operation of band blind plate be in the coal gas operation comprehensive the strongest, task difficulty is maximum, a dangerous the highest job, and it is that the coal gas user changes instrument in the work such as gas pipe line valve, contact under not stopping production situation.
The blind plate that enterprises such as present metallurgy, petrochemical industry use is basic material with common round iron plate, use sealing materials such as butter or graphite packing to make seal ring in the iron plate both sides according to the flange waterline diameter at stifled blind plane operation place, be provided with the lifting earhole at round iron plate, suspender easy to use is operated.When carrying out the stifled blind plane operation of pipeline, the blind plate of making is put between flange behind the opening, after blind plate enters fully, flange bolt tight, is reached the purpose of reliable cut-out coal gas.But for the tie-in point that valve overhauls and pipe manhole covers that is installed on the operation gas pipe line, this common blind plate is irrealizable.If adopt common blind plane operation, after needing the valve dismounting of maintenance on the in-service pipeline, overflow having a large amount of coal gas, cause great production accident.So the purpose of overhauling after the valve band gas dismounting that common closure plate can not be realized needing on the in-service pipeline to keep in repair also can't be implemented in the online coal gas contact that pipe manhole covers.
Summary of the invention:
The purpose of this utility model provides a kind of under the situation that gas pipe line is not stopped the supple of gas or steam, and the valve that need are overhauled carries out online dismounting or covers contact at pipe manhole, so that a kind of band coal gas of manual work blocks up, takes out blind plate easily.
The technological scheme that the technical problems to be solved in the utility model adopts is:
A kind ofly block up, take out blind plate easily in the operation of maintenance gas pipe line time band coal gas, comprise handle, blind plate, blind plate sealing circle.Wherein, blind plate is ring iron plate, and a handle is arranged on the blind plate, and at interval uniformly bolt hole is arranged on the ring plate face of blind plate, it is characterized in that: quantity, the aperture of the bolt hole on the quantity of bolt hole and aperture and the gas pipe line flange are identical.The concentrically ringed radius of bolt hole is identical with the concentric circle radius of flange upper bolt hole, eyelet of a side spot welding at band blind plate, the flange seal waterline size that the internal diameter of eyelet is mated setting is consistent, adhere to the blind plate sealing material at eyelet, having three circular holes and blind plate connection outer rim at least at the blind plate opposite side relative with handle is gap.
Quantity, the aperture of the bolt hole on the blind plate on the quantity of circular hole and aperture and the gas pipe line flange are identical, and the concentrically ringed radius of circular hole is identical with the concentric circle radius of flange upper bolt hole.
The beneficial effects of the utility model: the utility model the position of blind plate handle relative below, gap is set, be convenient under the situation that gas pipe line is not stopped the supple of gas or steam, with the valve dismounting of need maintenance or at pipe manhole lid place coal gas contact, reach safely, solve efficiently this metallurgy industry technical barrier.
Description of drawings:
Fig. 1 is shape, the structural representation of band blind plate;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the A-A sectional view of Fig. 1.
Among the figure: 1-blind plate, 2-blind plate sealing material, 3-flange hole, 4-gap, 5-handle, 6-blind plate grip hole, 7-eyelet.
Embodiment:
Embodiment 1
A kind ofly block up, take out blind plate easily in the operation of maintenance gas pipe line time band coal gas, comprise that blind plate sealing circle 2, bolt hole 3, gap 4, handle 5, blind plate handle erection opening 6 form.Wherein blind plate 1 is ring iron plate, and a handle 5 is arranged on the blind plate, and handle is provided with erection opening 6, so that the on-the-spot handling of blind plate.At interval uniformly bolt hole 3 is arranged on the ring plate face of blind plate, it is characterized in that: quantity, the aperture of the bolt hole on the quantity of bolt hole 3 and aperture and the gas pipe line flange are identical.The concentrically ringed radius of bolt hole is identical with the concentric circle radius of flange upper bolt hole, eyelet 7 of a side spot welding at band blind plate 1, the flange seal waterline size that the internal diameter of eyelet 7 is mated setting is consistent, adhere to blind plate sealing material 2 at eyelet 7, with handle 5 with respect to the blind plate opposite side have the outside of three circular holes and the blind plate connection gap 4 for slitting and leading at least, it is radial tubaeform that the opening of gap becomes, the gap amount of its circular hole determines according to the diameter of band blind plate, for the bigger blind plate of diameter, should increase the corresponding gap quantity that adds.
The utility model has been owing to there has been gap, can conveniently take out stifledly in operation, the valve of need maintenance removed or at pipe manhole lid place coal gas contact, reaches safety, solves this metallurgy industry technical barrier efficiently.
Claims (2)
1. when the maintenance gas pipe line, be with the coal gas operation stifled for one kind, take out blind plate easily, comprise handle, blind plate, the blind plate sealing circle, blind plate is ring iron plate, a handle is arranged on the blind plate, at interval uniform bolt hole is arranged on the ring plate face of blind plate, the quantity of the bolt hole on the quantity of bolt hole and aperture and the gas pipe line flange, the aperture is identical, the concentrically ringed radius of bolt hole is identical with the concentric circle radius of flange upper bolt hole, it is characterized in that: at eyelet of a side spot welding of band blind plate, the flange seal waterline size that the internal diameter of eyelet is mated setting is consistent, adhere to the blind plate sealing material at eyelet, having three circular holes and blind plate connection outer rim at least at the blind plate opposite side relative with handle is gap.
2. according to claim 1ly a kind ofly block up, take out blind plate easily in the operation of maintenance gas pipe line time band coal gas, it is characterized in that: the gap opening of described circular hole is radial tubaeform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220671896 CN203131313U (en) | 2012-12-07 | 2012-12-07 | Blind plate allowing convenient blocking and drawing in process of gas pipeline repair operation with gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220671896 CN203131313U (en) | 2012-12-07 | 2012-12-07 | Blind plate allowing convenient blocking and drawing in process of gas pipeline repair operation with gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203131313U true CN203131313U (en) | 2013-08-14 |
Family
ID=48939291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220671896 Expired - Lifetime CN203131313U (en) | 2012-12-07 | 2012-12-07 | Blind plate allowing convenient blocking and drawing in process of gas pipeline repair operation with gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203131313U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061401A (en) * | 2014-06-30 | 2014-09-24 | 黄河水电光伏产业技术有限公司 | Blind plate for conveying pipeline |
| CN105479098A (en) * | 2014-10-10 | 2016-04-13 | 五冶集团上海有限公司 | Online dismounting method for large-scale gas pipeline |
| CN106523843A (en) * | 2015-09-09 | 2017-03-22 | 吴金珠 | Blank flange |
| CN108692127A (en) * | 2017-03-31 | 2018-10-23 | 通用汽车环球科技运作有限责任公司 | Vent hose cap |
| CN109732176A (en) * | 2019-01-23 | 2019-05-10 | 宣化钢铁集团有限责任公司 | A kind of cutting blocks the support base and its method of Large Diameter Pipeline gas piping |
| CN114576428A (en) * | 2022-03-02 | 2022-06-03 | 广州市第三市政工程有限公司 | Method for replacing fault valve |
| CN114935061A (en) * | 2022-04-24 | 2022-08-23 | 广东韶钢松山股份有限公司 | Blind plate for transmission pipeline |
-
2012
- 2012-12-07 CN CN 201220671896 patent/CN203131313U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061401A (en) * | 2014-06-30 | 2014-09-24 | 黄河水电光伏产业技术有限公司 | Blind plate for conveying pipeline |
| CN105479098A (en) * | 2014-10-10 | 2016-04-13 | 五冶集团上海有限公司 | Online dismounting method for large-scale gas pipeline |
| CN105479098B (en) * | 2014-10-10 | 2018-02-16 | 五冶集团上海有限公司 | A kind of online method for dismounting of large-sized gas pipeline |
| CN106523843A (en) * | 2015-09-09 | 2017-03-22 | 吴金珠 | Blank flange |
| CN108692127A (en) * | 2017-03-31 | 2018-10-23 | 通用汽车环球科技运作有限责任公司 | Vent hose cap |
| CN109732176A (en) * | 2019-01-23 | 2019-05-10 | 宣化钢铁集团有限责任公司 | A kind of cutting blocks the support base and its method of Large Diameter Pipeline gas piping |
| CN109732176B (en) * | 2019-01-23 | 2024-04-09 | 宣化钢铁集团有限责任公司 | Supporting seat for cutting off and plugging large-diameter gas pipeline and method thereof |
| CN114576428A (en) * | 2022-03-02 | 2022-06-03 | 广州市第三市政工程有限公司 | Method for replacing fault valve |
| CN114935061A (en) * | 2022-04-24 | 2022-08-23 | 广东韶钢松山股份有限公司 | Blind plate for transmission pipeline |
| CN114935061B (en) * | 2022-04-24 | 2023-10-31 | 广东韶钢松山股份有限公司 | Blind plate for transmission pipeline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130814 |
|
| CX01 | Expiry of patent term |