CN104498655B - The method of plugging damaged hot-blast valve flange Upper gasket - Google Patents
The method of plugging damaged hot-blast valve flange Upper gasket Download PDFInfo
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- CN104498655B CN104498655B CN201410831771.5A CN201410831771A CN104498655B CN 104498655 B CN104498655 B CN 104498655B CN 201410831771 A CN201410831771 A CN 201410831771A CN 104498655 B CN104498655 B CN 104498655B
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- pad
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- blast valve
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Abstract
A kind of method that the present invention relates to plugging damaged hot-blast valve flange Upper gasket, the method comprises the following steps: first unclamp the bolt on the ring flange of pad damaged part both sides, then the vertical bar of T-shaped closeouts is inserted in pad damaged part, recycling salt leaching asbestos cord is wrapped on the transverse bar of T-shaped closeouts, finally screws the bolt unclamped and is fixed by ring flange.Pad breakage gap can be completely enclosed by the T-shaped closeouts that the method uses, and T-shaped closeouts can be fixed by salt leaching asbestos cord, and T-shaped closeouts also will not give birth to movement under sizable gas pressure.
Description
Technical field
A kind of method that the present invention relates to plugging damaged hot-blast valve flange Upper gasket.
Background technology
Air stove mainly provides the equipment of high-temperature hot-air to blast furnace, and it is provided with hot-blast valve on hot air duct.Hot-blast valve is requisite parts in blast fumance, it is used to control Combustion of Hot Air Furnace phase and the cut component of on air pipeline keying, it is applicable not only to the hot air duct of blast-furnace hot-air furnace system, it is also applied for the hot air duct of other Industrial Stoves, heating furnace, high temperature air, coal gas, flue gas etc. can be played cutting action.Hot-blast valve two ends use flange and the pad installed between two flanges to be attached, although pad can make Pipeline transport high-temperature hot-air, but hot-blast valve subjects the high temperature of degree more than 1,000, it is conveying high-temperature hot-air under severe working condition, so, hot-blast valve can make the pad in flange damaged through long-time use.Pad breakage can cause the leakage of hot blast, not only shortens the service life of equipment, and can increase the probability of unconventional damping down, can bring about great losses blast fumance.In the prior art, when there is breakage leakage in hot-blast valve pad, salt leaching asbestos cord is generally used to block at damaged part, although position can produce insulation at this kind of plug leak, but owing to the hot blast of the High Temperature High Pressure of leak is easy to salt leaching asbestos cord blowout, so, the effect of this kind of closure mode is undesirable, High Temperature High Pressure hot blast possible directly erosion failure flange time serious, thus cause pernicious equipment breakdown.
The chuck body that title disclosed in Chinese patent 102329907A " a kind of Novel clamp for sealing of hot-blast valve flange and using method " provides uses three part-structures, the two ends of every part are provided with the fixture otic placode that can be linked together by three part-structures, wherein body outer rim is provided with injecting hole for Flange joint gap location, can be injected by the little injection valve of special sealing gasket seals in valve, bolt hole annular seal space is filled up compacting, and then form sealing, stop a leak a little.Although it is undesirable and damage the problems such as flange that this kind of sealing clamp can solve plugging effect, but its structure is relative complex, and cost of manufacture is higher；Simultaneously because of leak stopping complex operation, once damaged, maintenance cost is higher.
Summary of the invention
The task of the present invention is to provide and a kind of the mode of pad damaged part integrally closed can solve hot-blast valve is fragile and the method for the plugging damaged hot-blast valve flange Upper gasket of the problem such as cost of manufacture is high.
The method of plugging damaged hot-blast valve flange Upper gasket proposed by the invention comprises the following steps: first unclamp the bolt on the ring flange of pad damaged part both sides, then the vertical bar of T-shaped closeouts is inserted in pad damaged part, recycling salt leaching asbestos cord is wrapped on the transverse bar of T-shaped closeouts, finally screws the bolt unclamped and is fixed by ring flange.
Described T-shaped closeouts is that the white steel plate part on Graphite pad surface is constituted by Graphite pad and covering.
Vertical bar in the T-shaped closeouts that the method for plugging damaged hot-blast valve flange Upper gasket proposed by the invention uses inserts in pad breakage gap, transverse bar is wound with salt leaching asbestos cord, pad breakage gap can be completely enclosed by T-shaped closeouts therein, and T-shaped closeouts can be fixed by salt leaching asbestos cord, even if hot-blast pipe line has sizable air pressure, also T-shaped closeouts will not be made to produce mobile, so, the method not only structure of this kind of closure pad damaged part is relatively easy, and sealing effectiveness is especially good, cost of manufacture is the cheapest.
Accompanying drawing explanation
Accompanying drawing 1 is the surface structure front view after the method closure of plugging damaged hot-blast valve flange Upper gasket proposed by the invention；
Accompanying drawing 2 is T-shaped closeouts surface structure schematic diagram in Fig. 1.
Detailed description of the invention
Pad 2 damaged part on hot-blast valve flange is generally in the shape of radial cracking, on closure pad 2 during radial cracking, first the bolt cracked on the ring flange of both sides is unclamped, then the vertical bar 11 of T-shaped closeouts 1 is inserted in the crackle of pad 2 breakage, and make the transverse bar 12 of T-shaped closeouts 1 be fixed on the surface of pad 2, recycling salt leaching asbestos cord 3 is wrapped on the transverse bar 12 of T-shaped closeouts 1, finally screws the bolt unclamped and is fixed by ring flange.
Above-mentioned T-shaped closeouts 1 is that the white steel plate part on Graphite pad surface is constituted by Graphite pad and covering, and the vertical bar 11 in this T-shaped closeouts 1 uses isosceles trapezoid body, and the area of upper surface is slightly larger than the area of lower surface；Transverse bar 12 uses rectangular body, and vertical bar 11 is fixed on the middle part of transverse bar 12.It addition, the thickness of vertical bar 11 and transverse bar 12 is equal with pad 2 thickness, the length of vertical bar 11 is slightly larger than pad 2 radial width.
During utilizing T-shaped closeouts 1 to block pad 2, can select vertical bar 11 and the applicable size of transverse bar 12 in T-shaped closeouts 1 according to pad 2 crackle diameter, auxiliary uses salt leaching asbestos cord 3 the most around.
Claims (2)
- The method of the most plugging damaged hot-blast valve flange Upper gasket, it is characterized in that: the method comprises the following steps: first unclamp the bolt on the ring flange of pad damaged part both sides, then the vertical bar of T-shaped closeouts is inserted in pad damaged part, recycling salt leaching asbestos cord is wrapped on the transverse bar of T-shaped closeouts, finally screws the bolt unclamped and is fixed by ring flange.
- Method the most according to claim 1, it is characterised in that: described T-shaped closeouts is that the white steel plate part on Graphite pad surface is constituted by Graphite pad and covering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410831771.5A CN104498655B (en) | 2014-12-29 | 2014-12-29 | The method of plugging damaged hot-blast valve flange Upper gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410831771.5A CN104498655B (en) | 2014-12-29 | 2014-12-29 | The method of plugging damaged hot-blast valve flange Upper gasket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104498655A CN104498655A (en) | 2015-04-08 |
| CN104498655B true CN104498655B (en) | 2017-01-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410831771.5A Active CN104498655B (en) | 2014-12-29 | 2014-12-29 | The method of plugging damaged hot-blast valve flange Upper gasket |
Country Status (1)
| Country | Link |
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| CN (1) | CN104498655B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192384B (en) * | 2010-03-03 | 2015-05-06 | 五冶集团上海有限公司 | Large-scale flange water leakage treatment method for lining rubber and lining brick equipment |
| CN101935724A (en) * | 2010-09-17 | 2011-01-05 | 中冶京诚工程技术有限公司 | Protection device of water inlet/outlet pipe of cooling wall |
| CN201982053U (en) * | 2011-03-30 | 2011-09-21 | 郑来恩 | Blowout and leakage plugging pin |
| CN102329907B (en) * | 2011-09-30 | 2013-05-01 | 天津钢铁集团有限公司 | Novel clamp for sealing of hot-blast valve flange and using method thereof |
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2014
- 2014-12-29 CN CN201410831771.5A patent/CN104498655B/en active Active
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| Publication number | Publication date |
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| CN104498655A (en) | 2015-04-08 |
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