CN106151766B - Blind plate production method for gas piping - Google Patents
Blind plate production method for gas piping Download PDFInfo
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- CN106151766B CN106151766B CN201510199347.8A CN201510199347A CN106151766B CN 106151766 B CN106151766 B CN 106151766B CN 201510199347 A CN201510199347 A CN 201510199347A CN 106151766 B CN106151766 B CN 106151766B
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- blind plate
- gas piping
- production method
- iron wire
- asbestos
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Abstract
A kind of blind plate production method for gas piping is suitable for standard blind plate and non-standard blind plate, it is characterised in that including following technical measures: the production of a standard blind plate and the non-standard blind plate production of b.Blind plate production method for gas piping of the invention has the advantages that blind plate making step designs that reasonable, easy to operate and blind plate quality safety is reliable, sealing performance is excellent.
Description
Technical field
The present invention relates to a kind of blind plates for blocking pipe mouth, specifically, being a kind of blind plate for gas piping
Production method.
Background technique
Produce or enterprise using coal gas in, because of overhaul of the equipments, stop production, change (expansion) and build and the states such as burst accident,
Often face the problem of must reliably cutting off coal gas source.As the safety measure that must be implemented during this, band coal gas is taken out stifled
Blind plate is presently the most common, reliable way.But it is used for the blind plate of gas piping, there is much not scientific, unreasonable
Place, manufacturing process is many and diverse, manufacturing cost is high.
Therefore the blind plate of known gas piping there are problems that it is above-mentioned various inconvenient and.
Summary of the invention
The purpose of the present invention is the blind plate production side for gas piping for proposing that a kind of standardization coal gas takes out stifled operation
Method.
To achieve the above object, the technical solution of the invention is as follows:
A kind of blind plate production method for gas piping is suitable for standard blind plate and non-standard blind plate, it is characterised in that
Including following technical measures:
A, standard blind plate makes
Expanded polytetrafluoroethylsealing gasket, is pasted onto the two sides side of blind plate by the dirt for removing all round blind plate surfaces
Edge, and lubricating grease is smeared in all metal coverings of blind plate；
B, non-standard blind plate production, comprising the following steps:
Step 1 is rapid: the thickness of blind plate should be calculated according to formula (1) and be determined；
Wherein:
T=blind plate calculated thickness, unit mm；
D=installation blind plate position flange gasket internal diameter, unit mm；
P=blind plate both sides pressure difference, unit Mpa；
The allowable stress of the material of [σ]=production blind plate, unit Mpa；
Ej=welded joint coefficient；
Second step: being woven into asbestos cord with asbestos yarn and do gasket, and is fixed securely；
Third step: being isolated for blind plate and pipeline is carried out with spacer ring (spacer ring gasket be asbestos cord)；
Step 4 is rapid: applying lubricating grease on blind plate surface.
Blind plate production method for gas piping of the invention can also be using technical measures below come further real
It is existing.
Method above-mentioned, wherein make asbestos cord spoon machine oil in the technical measures b, it caused to be impregnated with, and with wooden mallet or
Rubber hammer causes its bat closely knit.
Method above-mentioned keeps the temperature iron wire wherein asbestos cord is fixed on iron wire with heat preservation iron wire in the technical measures b
It is spot welded on blind plate.
Method above-mentioned, wherein the iron wire diameter is chosen according to pressure size, selection range is φ 3.9-5.5mm.
Method above-mentioned, wherein the gap of the non-position while welding of the heat preservation iron wire across blind plate and iron wire is by asbestos
Rope binding.
Method above-mentioned, wherein the asbestos braided rope through with not less than gas pressure compressed air purging it is close, do not blow unrest
Or cannot not blow de-ly person is fixation.
After adopting the above technical scheme, the blind plate production method for gas piping of the invention has the advantage that
1, the design of blind plate making step is reasonable, easy to operate；
2, blind plate quality safety is reliable, sealing performance is excellent.
Detailed description of the invention
Fig. 1 is the standard blind plate structure schematic diagram of the embodiment of the present invention；
Fig. 2 is the side view of Fig. 1；
Fig. 3 is the non-standard blind plate structure schematic diagram of the embodiment of the present invention；
Fig. 4 is the side view of Fig. 3；
Fig. 5 is the P position enlarged drawing in Fig. 4；
Fig. 6 is the non-standard blind plate structure schematic diagram of the embodiment of the present invention；
Fig. 7 is the side view of Fig. 6；
Fig. 8 is the position the Q enlarged drawing in Fig. 7.
In figure: 1 blind plate, 2 heat preservation iron wires, 3 asbestos cords, 4 iron wires, 5 spacer ring gaskets.
Specific embodiment
With reference to embodiments and its attached drawing further explains the present invention.
Embodiment 1
Blind plate production method for gas piping of the invention is suitable for standard blind plate and non-standard blind plate.
It is the standard blind plate structure schematic diagram of the embodiment of the present invention referring now to Fig. 1-2, Fig. 1, Fig. 2 is the side view of Fig. 1.
A, standard blind plate makes
Expanded polytetrafluoroethylsealing gasket, is pasted onto the two sides side of blind plate by the dirt for removing all round blind plate surfaces
Edge, and lubricating grease is smeared in all metal coverings of blind plate.
Fig. 3 is the non-standard blind plate structure schematic diagram of the embodiment of the present invention, and Fig. 4 is the side view of Fig. 3, and Fig. 5 is in Fig. 4
P position enlarged drawing.
B, non-standard blind plate production, comprising the following steps:
Step 1 is rapid: the thickness of blind plate should be calculated according to formula (1) and be determined；
Wherein:
T=blind plate calculated thickness (unit: mm)；
D=installation blind plate position flange gasket internal diameter (unit: mm)；
P=blind plate both sides pressure difference (unit: MPa)；
The allowable stress (unit: MPa) of the material of [σ]=production blind plate；
Ej=welded joint coefficient；
Second step: gasket, and fixation (leaching saturated with motor oil asbestos braided rope, with wooden mallet or rubber are done with asbestos braided rope
Glue hammer clap it is closely knit, be not less than gas pressure compressed air purging gasket, do not blow unrest or blow do not take off for fixation),
Being isolated for self-control spacer ring (spacer ring gasket is for asbestos cord material) progress blind plate and pipeline is used in the process.
Third step: blind plate surface applies lubricating grease；
Fig. 6 is the non-standard blind plate structure schematic diagram of the embodiment of the present invention, and Fig. 7 is the side view of Fig. 6, and Fig. 8 is in Fig. 7
The position Q enlarged drawing.
Wherein: asbestos cord is fixed on iron wire with heat preservation iron wire, and heat preservation iron wire is spot welded on blind plate.Iron wire diameter according to
Pressure size is chosen, and selection range is φ 3.9-5.5mm.Keep the temperature the seam of non-position while welding of the iron wire across blind plate and iron wire
Gap binds asbestos cord.Asbestos braided rope does not blow unrest or cannot not blow de-ly person and be through close with the compressed air purging not less than gas pressure
Fixation.
The present invention has substantive distinguishing features and significant technological progress, the blind plate production side for gas piping of the invention
By carrying out scientific algorithm, production to standard coal gas blind plate under different condition and non-standard coal gas blind plate, blind plate surface carries out method
Secondary treatment creates good sealing effect with spacer ring gasket.
With the blind plate for being used for gas piping made of the method for the present invention, chute blockage gas blind plate is taken out in the case where there is pressure condition, is matched
The guide rod of standby designed, designed production carries out blind plate pumping and blocks up, and can greatly improve coal gas blind plate replacement efficiency.
Above embodiments are used for illustrative purposes only, rather than limitation of the present invention, the technology people in relation to technical field
Member, without departing from the spirit and scope of the present invention, can also carry out various transformation or variation.Therefore, all equivalent
Technical solution also should belong to scope of the invention, should be limited by each claim.
Claims (6)
1. a kind of blind plate production method for gas piping, blind plate ontology is smooth circular steel plate,
Suitable for non-standard blind plate, it is characterised in that including following technical measures:
Non-standard blind plate production, comprising the following steps:
Step 1 is rapid: the thickness of blind plate should be calculated according to formula (1) and be determined；
T=0.433d [P/ ([σ] Ej)]0.5 (1)
Wherein:
The calculated thickness of t=blind plate, unit mm；
D=installs the flange gasket internal diameter of blind plate position, unit mm；
The pressure difference on P=blind plate both sides, unit Mpa；
The allowable stress of the material of [σ]=production blind plate, unit Mpa；
Ej=welded joint coefficient；
Second step: being woven into asbestos braided rope with asbestos cord and do gasket, and is fixed securely, and asbestos cord is existed with heat preservation iron wire
Fixed on iron wire, heat preservation iron wire is spot welded on blind plate；
Third step: being isolated for blind plate and pipeline is carried out with spacer ring；
Step 4 is rapid: applying lubricating grease on blind plate surface.
2. being used for the blind plate production method of gas piping as described in claim 1, which is characterized in that in second step, make asbestos
Rope spoons machine oil, causes it to be impregnated with, and cause its bat closely knit with wooden mallet or rubber hammer.
3. as described in claim 1 be used for gas piping blind plate production method, which is characterized in that the iron wire diameter according to
Pressure size is chosen, and selection range is φ 3.9-5.5mm.
4. being used for the blind plate production method of gas piping as described in claim 1, which is characterized in that the heat preservation iron wire passes through
The gap of non-position while welding between blind plate and iron wire binds asbestos cord.
5. being used for the blind plate production method of gas piping as claimed in claim 1 or 2, which is characterized in that the asbestos braided rope
Through close with the compressed air purging not less than gas pressure, not blowing unrest or cannot not blowing de-ly person is fixation.
6. being used for the blind plate production method of gas piping as described in claim 1, which is characterized in that the spacer ring is asbestos
Rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510199347.8A CN106151766B (en) | 2015-04-24 | 2015-04-24 | Blind plate production method for gas piping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510199347.8A CN106151766B (en) | 2015-04-24 | 2015-04-24 | Blind plate production method for gas piping |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106151766A CN106151766A (en) | 2016-11-23 |
| CN106151766B true CN106151766B (en) | 2019-06-14 |
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ID=57347841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510199347.8A Active CN106151766B (en) | 2015-04-24 | 2015-04-24 | Blind plate production method for gas piping |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3820826C1 (en) * | 1988-05-25 | 1989-11-30 | L. & C. Steinmueller Gmbh, 5270 Gummersbach, De | Apparatus for receiving flowable bulk material through which flows a gas stream |
| CN2089113U (en) * | 1991-03-29 | 1991-11-20 | 邯郸钢铁总厂 | Blind flange for displacing valve of gas pipeline |
| CN2276916Y (en) * | 1996-02-27 | 1998-03-25 | 季清睦 | Production and filling dual-purpose machine of daily chemical products |
| CN2407192Y (en) * | 2000-01-25 | 2000-11-22 | 朱晶维 | Online blind plate |
| CN201925501U (en) * | 2010-12-31 | 2011-08-10 | 上海发电设备成套设计研究院 | Device of pipeline inserting valve |
| CN102927363A (en) * | 2012-10-29 | 2013-02-13 | 中国华冶科工集团有限公司 | Construction method for extracting blind plate under coal gas |
| 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 |
-
2015
- 2015-04-24 CN CN201510199347.8A patent/CN106151766B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3820826C1 (en) * | 1988-05-25 | 1989-11-30 | L. & C. Steinmueller Gmbh, 5270 Gummersbach, De | Apparatus for receiving flowable bulk material through which flows a gas stream |
| CN2089113U (en) * | 1991-03-29 | 1991-11-20 | 邯郸钢铁总厂 | Blind flange for displacing valve of gas pipeline |
| CN2276916Y (en) * | 1996-02-27 | 1998-03-25 | 季清睦 | Production and filling dual-purpose machine of daily chemical products |
| CN2407192Y (en) * | 2000-01-25 | 2000-11-22 | 朱晶维 | Online blind plate |
| CN201925501U (en) * | 2010-12-31 | 2011-08-10 | 上海发电设备成套设计研究院 | Device of pipeline inserting valve |
| CN102927363A (en) * | 2012-10-29 | 2013-02-13 | 中国华冶科工集团有限公司 | Construction method for extracting blind plate under coal gas |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106151766A (en) | 2016-11-23 |
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