CN202580461U - Pressure sealing structure for high-pressure fluid pipeline - Google Patents

Pressure sealing structure for high-pressure fluid pipeline Download PDF

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Publication number
CN202580461U
CN202580461U CN 201220271221 CN201220271221U CN202580461U CN 202580461 U CN202580461 U CN 202580461U CN 201220271221 CN201220271221 CN 201220271221 CN 201220271221 U CN201220271221 U CN 201220271221U CN 202580461 U CN202580461 U CN 202580461U
Authority
CN
China
Prior art keywords
pressure
plate
ring
leakage point
sheathed casing
Prior art date
Application number
CN 201220271221
Other languages
Chinese (zh)
Inventor
陈学明
王家东
邹守恒
钱光海
Original Assignee
安徽皖维高新材料股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 安徽皖维高新材料股份有限公司 filed Critical 安徽皖维高新材料股份有限公司
Priority to CN 201220271221 priority Critical patent/CN202580461U/en
Application granted granted Critical
Publication of CN202580461U publication Critical patent/CN202580461U/en

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Abstract

The utility model discloses a pressure sealing structure for a high-pressure fluid pipeline. The pressure sealing structure is characterized in that a protective casing is arranged on a pipe section with a leakage point; a circular end plate is arranged at each of the two ends of the protective casing; the circular end plates are welded with the outer periphery of the fluid pipeline through central round holes to form a closed round pipe cavity; the pipe section with the leakage point is sealed in the round pipe cavity; a flow guide pipe communicated with the round pipe cavity is arranged on the sidewall of the protective casing; and a stop valve is arranged on the flow guide pipe. Leakage is handled under the condition of no influence on normal use.

Description

A kind of pressure sealing structure of high-pressure fluid pipes
Technical field
The utility model relates to a kind of pressure sealing structure of high-pressure liquid pipeline.More particularly especially be suitable for the pressure sealing structure of the high-pressure liquid pipelines such as boiler of nonflammable fluid.
Background technique
Station boiler is in operation, and bearing pipe, valve, instrument flowmeter orifices such as feedwater, steam because long-term the use receives the influence of factors such as corrosion, heat expansion, shrinkage, leak unavoidable.
Usually used general several kinds of pressure sealing methods only be applicable to the following low pressure pipeline of 0.4MPa, and station boiler pressure are usually all more than 5MPa; In case occur leaking; Traditional processing method all be after the blowing out through step-down more than 10 hours, discharge soldering to water again, or change flange gasket.This mode is handled leakage, and a general blowing out of medium-pressure boiler, some stove expense are all ten thousand yuan of 3-5, and large-scale high-pressure autoclave is then higher.Influence is simultaneously produced and generating, in blowing out, some stove process, also can cause pollution in various degree to environment.
Summary of the invention
The utility model is to leak for avoiding above-mentioned existing in prior technology deficiency, a kind of pressure sealing structure of high-pressure fluid pipes is provided, be implemented in handling under the situation that does not influence normal use.
The utility model adopts following technological scheme for the technical solution problem:
The pressure sealing structural feature of a kind of high-pressure fluid pipes of the utility model is: pipeline section is provided with sheathed casing at the leakage point place; Two ends at said sheathed casing are provided with the ring end plate respectively; Said ring end plate is the excircle welding with center hole and fluid line, forms airtight pipe chamber; Said leakage point place segment seal is in said pipe chamber; On the sidewall of said sheathed casing, the honeycomb duct that is communicated with said pipe chamber is set, on said honeycomb duct, stop valve is set.
A kind of characteristics that are used for the pressure sealing structure of high-pressure fluid pipes such as boiler of the present invention also are:
Said sheathed casing and ring end plate longitudinally subdivision are two halves, are the sheathed casing of two halves and the periphery of ring end plate pipeline section at said leakage point place and form the Hough docking structure.
Compared with present technology, the utility model beneficial effect is embodied in:
1, the utility model adopts the peripheral solder of form pipeline section at the leakage point place of water conservancy diversion to form airtight pipe chamber, has realized under the situation that does not influence normal use, accomplishing Leakage Treatment.
2, the utility model is simple in structure, and is easy to implement, is primarily aimed at nonflammable fluid.
3, the utility model can be adaptable across high-pressure fluid pipes such as boilers.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model sheathed casing structural representation;
Label among the figure: 1 stop valve; 2 fluid lines; 3 leakage points; 4 sheathed casings; 5 circular formula end plates; 6 honeycomb ducts; 7 pipe chambeies.
Embodiment
Referring to Fig. 1; The pressure sealing structure of present embodiment mesohigh fluid line is: at leakage point 3 place pipeline sections sheathed casing 4 is set; Two ends at sheathed casing 4 are provided with ring end plate 5 respectively, and ring end plate 5 is the excircle welding with center hole and fluid line 2, forms airtight pipe chamber 7; Leakage point 3 place segment seal are in pipe chamber 7; On the sidewall of sheathed casing 4, the honeycomb duct 6 that is connected with pipe chamber 7 is set, stop valve 1 is set on honeycomb duct 6.
In the practical implementation, like Fig. 2 and shown in Figure 1, sheathed casing 4 is two halves partly longitudinally with ring end plate 5, is the sheathed casing of two halves and the periphery of ring end plate pipeline section at the leakage point place and forms the Hough docking structure.
Require formed airtight pipe chamber 7 to want to bear the pressure maximum of leak fluid.
Operating process:
Open stop valve 1, sheathed casing that is two halves that has welded together 4 and ring end plate 5 are combined sheath on leakage point 3 place pipeline sections; Remain off valve 1 is an open mode; The high-pressure leakage fluid is led to enough draw, form airtight pipe chamber through the periphery that is welded on leakage point place pipeline section, subsequently through honeycomb duct 6 and stop valve 1; About stop valve 1, accomplished the pressure sealing process on high-pressure fluid pipes 2.

Claims (2)

1. the pressure sealing structure of a high-pressure fluid pipes; It is characterized in that: pipeline section is provided with sheathed casing (4) at leakage point (3) place; At the two ends of said sheathed casing (4) ring end plate (5) is set respectively; Said ring end plate (5) is the excircle welding with center hole and fluid line (2), forms airtight pipe chamber (7); Said leakage point (3) place segment seal is in said pipe chamber (7); On the sidewall of said sheathed casing, the honeycomb duct (6) that is communicated with said pipe chamber is set, stop valve (1) is set on said honeycomb duct (6).
2. the pressure sealing structure that is used for high-pressure fluid pipes such as boiler according to claim 1; It is characterized in that said sheathed casing (4) and ring end plate (5) longitudinally subdivision be two halves, the periphery that is sheathed casing and the ring end plate pipeline section at said leakage point place of two halves forms the Hough docking structure.
CN 201220271221 2012-06-08 2012-06-08 Pressure sealing structure for high-pressure fluid pipeline CN202580461U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220271221 CN202580461U (en) 2012-06-08 2012-06-08 Pressure sealing structure for high-pressure fluid pipeline

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220271221 CN202580461U (en) 2012-06-08 2012-06-08 Pressure sealing structure for high-pressure fluid pipeline

Publications (1)

Publication Number Publication Date
CN202580461U true CN202580461U (en) 2012-12-05

Family

ID=47249870

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220271221 CN202580461U (en) 2012-06-08 2012-06-08 Pressure sealing structure for high-pressure fluid pipeline

Country Status (1)

Country Link
CN (1) CN202580461U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108223959A (en) * 2016-12-14 2018-06-29 中国石油天然气股份有限公司 For the tape-pressure leakage clogging device and method for blocking of root valve
CN110274121A (en) * 2019-06-05 2019-09-24 北京市燃气集团有限责任公司 Air deflector
CN110285284A (en) * 2019-06-05 2019-09-27 北京市燃气集团有限责任公司 Device for plugging
CN110285285A (en) * 2019-06-05 2019-09-27 北京市燃气集团有限责任公司 Pipe plugging method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108223959A (en) * 2016-12-14 2018-06-29 中国石油天然气股份有限公司 For the tape-pressure leakage clogging device and method for blocking of root valve
CN110274121A (en) * 2019-06-05 2019-09-24 北京市燃气集团有限责任公司 Air deflector
CN110285284A (en) * 2019-06-05 2019-09-27 北京市燃气集团有限责任公司 Device for plugging
CN110285285A (en) * 2019-06-05 2019-09-27 北京市燃气集团有限责任公司 Pipe plugging method

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