CN2089113U - Blind flange for displacing valve of gas pipeline - Google Patents
Blind flange for displacing valve of gas pipeline Download PDFInfo
- Publication number
- CN2089113U CN2089113U CN 91205008 CN91205008U CN2089113U CN 2089113 U CN2089113 U CN 2089113U CN 91205008 CN91205008 CN 91205008 CN 91205008 U CN91205008 U CN 91205008U CN 2089113 U CN2089113 U CN 2089113U
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- CN
- China
- Prior art keywords
- blind plate
- valve
- gas
- flange
- blind
- 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.)
- Pending
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Abstract
The utility model discloses a blind flange for displacing valve of a gas pipeline which can combine a blind plate and sealing washer into an integral structure. The blind plate is provided with bolt holes which are one-to-one corresponding to a gas pipeline flange at the blind plate blocking point and a valve flange, and a wire planting machine (with internal thread) and a wire passing bore (without internal thread) are interphasing allocated and are alternatively used by wire planting and wire passing. The blind plate and a rotating bucket which are blocked between the pipeline and the valve can be completely fixed on the gas pipeline flange, after blocking the gas, the valve can be separated in order to change the blind plate blocking point. Used for changing valves of the gas pipelines in the metallurgy enterprises, the blind plate can make the gas stopping shrink to the minimum range in order to reduce the influence to the producing.
Description
The utility model relates to smelter and changes a kind of blind plate that the gas pipe line valve is used.
In the time of must changing when a certain valve damage on the gas pipe line, in order to guarantee the safety of the person and equipment, the influence of minimizing to producing, past, common way was: if there is the coal gas source on these valve both sides, can on two other valve of the both sides of this valve, block up blind plate, this valve is changed in cut-out coal gas source then; Perhaps the stifled blind plate in another valve place on one side of valve cuts off coal gas, stops the supple of gas or steam at the another side of valve, changes valve then; The back replacing valve of stopping the supple of gas or steam perhaps all stops production on the valve both sides.If the coal gas at this valve place is unidirectional source, can the coal gas source direction be stopped the supple of gas or steam at the stifled blind plate in another valve place of the coal gas source direction of this valve, could change this valve, in these cases, all can not change the stifled blind plate in place of valve, change this valve thereupon at needs.So whole process of changing valve, spended time is long, and it is many to influence the coal gas user, and the loss that causes to production is big.Reason is: the blind plate of Shi Yonging is a light face plectane that has the steel plate making of handle and plug in the past, its cylindrical is no more than the bolt hole of gas pipe line flange, the packing ring that seals, be to be wrapped on the washer plate by asbestos rope, this blind plate and packing ring are made respectively, be used, must blind plate and packing ring extruding be lived, the coal gas in the gas pipe line could be blocked by two flanges.And in the valve installation place, the gas pipe line flange is bound up with valve flanges, thus to block up blind plate at this valve place, and to change this valve be out of the question.
The purpose of this utility model just is to design a kind of blind plate, and the coal gas at tube valve place source is not how, and this blind plate is got lodged in the valve place that will change, and just can change this valve.
The utility model is to realize like this, it is equally big that the blind plate circumference that uses in the past is extended to pipeline (or valve) flange excircle, on blind plate with the corresponding one by one bolt hole of stamping of pipeline (or valve) flange, alternate studding hole (band internal thread) and the filament hole (not being with internal thread) of being configured to, point is welded with two metal cirques on the blind plate of bolt hole inboard, tamps asbestos rope therebetween.
For the ease of block up, accurate contraposition when taking out blind plate, also below blind plate, offer two suitable with the bolt hole position, the locating slot of equal diameters.
Below in conjunction with drawings and Examples the utility model is described as follows:
Fig. 1 a is the former blind plate of using.
Fig. 1 b is the blind packing ring of pulling of former usefulness.
Fig. 2 is the utility model structural representation.
Fig. 3 changes the valve working schematic flow sheet when using the utility model.
1--handle 2--blind plate among the figure
3--plug 4--asbestos rope
5--filament hole 6--studding hole
Metal ring in the outer metal ring 8--of 7--
9--locating slot 10--gas pipe line
11--valve 12--wears silk
13--studding → coal gas flows to
Blind plate thickness is decided on gas pressure and gas pipe line diameter, and general 10-20mm gets final product, and two metal rings can be selected general ferrous materials for use on the blind plate, along the circumferential direction are welded on the blind plate every the 50-200mm point.At a distance of 15-20mm, tamp asbestos rope therebetween between two metal cirques, in order to prevent the asbestos rope loose or dislocation, also available 22# thin wire so that seal washer becomes as a whole with blind plate, conveniently uses asbestos rope and metal ring bundle jail.
Because the studding hole and the filament hole of alternate configuration are arranged on the design's the blind plate, when it gets lodged between gas pipe line flange and the valve flanges, just can be with its state by gas pipe line flange and valve flanges clamping, forward to be completely fixed on the gas pipe line flange and block coal gas, and be separated from fully, thereby realize replacing to stifled blind plate place valve with the valve flanges at this place.
When using the design's blind plate replacing valve, can make the coal gas that stops in the metallurgical works narrow down to minimum zone, reduce the time of stopping the supple of gas or steam and influence producing.
When using the design's blind plate to change the gas pipe line valve (being example) with side's coal gas source, its workflow as shown in Figure 3:
Fig. 3 a--lays down the bolt (bottom stays two holding down bolts that unclamp) that old valve coal gas comes source side, backs down flange, inserts blind plate.
Fig. 3 b--puts on silk, tightens and wears silk and two holding down bolts staying of bottom, and first-class studding is laid down and worn two holding down bolts that silk and bottom stay, and blind plate has just broken away from old valve, has blocked piped gas.
Fig. 3 c--lays down the bolt of old valve another side, backs down flange, hangs away old valve.
Fig. 3 d--hangs and changes new valve, in not stifled blind plate one side valve flanges and piping flange is tightened with bolt.In stifled blind plate one side, the locating slot that passes blind plate in piping flange and valve flanges bottom is put on two and is worn silk, lay down studding then, extract blind plate out, at last remaining bolt on piping flange and the valve flanges is all put on, two holding down bolts (wearing silk) together with the bottom are tightened, and whole replacing valve working finishes.
Certain this replacing gas pipe line valve blind plate, in stifled and the working procedure of taking out, as the past stifled, it is the same to take out the blind plate operation, still needs operator to wear resuscitation apparatus, performs all necessary preparatory works, to guarantee carrying out smoothly of personal safety and work.
Claims (2)
1, a kind of circular blind plate of making of steel plate of replacing gas pipe line valve that has handle and plug, it is characterized in that: have on the blind plate and the gas pipe line flange at stifled blind plate place and valve flanges bolt hole one to one, alternate studding hole (band internal thread) and the filament hole (not being with internal thread) of being configured to, point is welded with two metal cirques on the blind plate of bolt hole inboard, tamps the sealing asbestos rope therebetween.
2,, it is characterized in that blind plate below offers the locating slot of two, equal diameters suitable with the bolt hole position according to claim 1 described replacing gas pipe line valve blind plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91205008 CN2089113U (en) | 1991-03-29 | 1991-03-29 | Blind flange for displacing valve of gas pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91205008 CN2089113U (en) | 1991-03-29 | 1991-03-29 | Blind flange for displacing valve of gas pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2089113U true CN2089113U (en) | 1991-11-20 |
Family
ID=4914961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91205008 Pending CN2089113U (en) | 1991-03-29 | 1991-03-29 | Blind flange for displacing valve of gas pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2089113U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996971A (en) * | 2012-12-07 | 2013-03-27 | 内蒙古包钢钢联股份有限公司 | Method for plugging and extracting holed blind plate of coal gas |
| CN104295827A (en) * | 2013-07-17 | 2015-01-21 | 五冶集团上海有限公司 | Large-caliber leakproof gasket for gas pipeline and method of application thereof |
| CN106151766A (en) * | 2015-04-24 | 2016-11-23 | 五冶集团上海有限公司 | Blind plate preparation method for gas piping |
| 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 |
-
1991
- 1991-03-29 CN CN 91205008 patent/CN2089113U/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996971A (en) * | 2012-12-07 | 2013-03-27 | 内蒙古包钢钢联股份有限公司 | Method for plugging and extracting holed blind plate of coal gas |
| CN104295827A (en) * | 2013-07-17 | 2015-01-21 | 五冶集团上海有限公司 | Large-caliber leakproof gasket for gas pipeline and method of application thereof |
| CN104295827B (en) * | 2013-07-17 | 2016-12-28 | 五冶集团上海有限公司 | Heavy caliber gas pipeline anti-leak packing ring and using method |
| CN106151766A (en) * | 2015-04-24 | 2016-11-23 | 五冶集团上海有限公司 | Blind plate preparation method for gas piping |
| CN106151766B (en) * | 2015-04-24 | 2019-06-14 | 五冶集团上海有限公司 | Blind plate production method for gas piping |
| 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 |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |