CN105673993A - Hot tapping blockage pressure balancing device of fluid pipeline and method of hot tapping blockage pressure balancing device - Google Patents

Hot tapping blockage pressure balancing device of fluid pipeline and method of hot tapping blockage pressure balancing device Download PDF

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Publication number
CN105673993A
CN105673993A CN201610066851.5A CN201610066851A CN105673993A CN 105673993 A CN105673993 A CN 105673993A CN 201610066851 A CN201610066851 A CN 201610066851A CN 105673993 A CN105673993 A CN 105673993A
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China
Prior art keywords
valve
auxiliary
perforate
case
pipe fitting
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Granted
Application number
CN201610066851.5A
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Chinese (zh)
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CN105673993B (en
Inventor
邢琳琳
李夏喜
张海涛
贾应辉
陈文利
张海军
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Beijing Gas Group Co Ltd
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Beijing Gas Group Co Ltd
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Priority to CN201610066851.5A priority Critical patent/CN105673993B/en
Publication of CN105673993A publication Critical patent/CN105673993A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/18Appliances for use in repairing pipes

Abstract

The invention relates to a hot tapping blockage pressure balancing device of a fluid pipeline and a method of the hot tapping blockage pressure balancing device. The balancing device comprises a connection pipe fitting, a tapping machine, an auxiliary connection pipe fitting, an auxiliary tapping machine and a gas storage tank, wherein a cavity of the connection pipe fitting is a tapping connecting box; the tapping machine and a sandwich valve are arranged in the tapping connecting box; when the sandwich valve is closed, the tapping connecting box is divided into two parts by the sandwich valve; when the sandwich valve is opened, the two parts of the tapping connecting box communicate with each other to form a whole body; a cavity of the auxiliary connection pipe fitting is an auxiliary tapping connecting box; the auxiliary tapping machine and an auxiliary sandwich valve are arranged in the auxiliary tapping connecting box; when the auxiliary sandwich valve is closed, the auxiliary tapping connecting box is divided into two parts by the auxiliary sandwich valve; when the auxiliary sandwich valve is opened, the two parts of the auxiliary tapping connecting box communicate with each other to form a whole body; and the tapping connecting box and the auxiliary tapping connecting box are connected with the gas storage tank through pipes respectively. By the balancing device and the method for tapping a high-pressure gas delivery pipe, severe shock of high pressure in a high-pressure gas pipe to a perforating machine is avoided, so that production safety and safety of operators are ensured.

Description

A kind of fluid line press and open holes closure pressure equaliser and method thereof
Technical field
The present invention relates to a kind of bascule, in particular relate to fluid line press and open holes closure pressure equaliser and method high-pressure gas pipe being carried out perforate with this device.
Background technology
In recent years, along with the step of urbanization is more and more faster, combustion gas enters ten million family, gas pipeline is extensively laid in old city or emerging city, the high-pressure gas pipeline of delivery of fuel gas is also laid on the underground in city widely, when this high-pressure gas pipeline breaks down, operator are in order to ensure the conveying of combustion gas, must in high-pressure gas pipeline situation with pressure, high-pressure gas pipeline is punched, then the pipeline that a section breaks down is changed as early as possible, owing to the pipeline of delivery of fuel gas is high-pressure gas pipeline, the moment of high-pressure gas pipeline is opened at puncher, owing to puncher can be produced strong impact by the high pressure in high-pressure gas pipeline, cause the accident even.
Summary of the invention
It is an object of the invention to provide a set of fluid line press and open holes closure pressure equaliser and method that high pressure gas pipeline is carried out perforate, it is to avoid the high pressure in high-pressure gas pipeline is to intense impact produced by puncher.
To achieve these goals, the technical solution of the present invention is:
A kind of fluid line press and open holes closure pressure equaliser of the present invention, it includes: wiring pipe fitting and tapping machine, the inner chamber of wiring pipe fitting is that perforate connects case, case is connected built with tapping machine and sandwich valve in perforate, during sandwich valve Guan Bi, perforate is connected case and is divided into two parts by sandwich valve, when sandwich valve is opened, it is an entirety that perforate connects case connection, wherein: it also includes: auxiliary connection pipe fitting, auxiliary tapping machine and air accumulator, the inner chamber of auxiliary connection pipe fitting connects case for auxiliary perforate, case is connected built with auxiliary tapping machine and additional lock plate valve in auxiliary perforate, during additional lock plate valve Guan Bi, auxiliary perforate is connected case and is divided into two parts by additional lock plate valve, when additional lock plate valve is opened, it is an entirety that auxiliary perforate connects case connection, perforate connects case and connects case be connected with air accumulator respectively through pipeline with auxiliary perforate,
A kind of fluid line press and open holes closure pressure equaliser of the present invention, wherein: connect in auxiliary perforate and connect valve equipped with first between case and air accumulator;
A kind of fluid line press and open holes closure pressure equaliser of the present invention, wherein: connect in perforate and connect valve equipped with second between case and air accumulator;
A kind of fluid line press and open holes closure pressure equaliser of the present invention, wherein: described air accumulator is also equipped with Pressure gauge and air bleeding valve;
A kind of fluid line press and open holes closure pressure equaliser of the present invention, wherein: described perforate connects and is also equipped with exhaust-valve on case;
A kind of method that high pressure gas pipeline is carried out perforate of the present invention, wherein:
A wiring pipe fitting and auxiliary connection pipe fitting are respectively welded on separated by a distance two being fixed on high pressure gas pipeline by (), by tapping machine, perforate connects case and sandwich valve is arranged on wiring pipe fitting, by auxiliary tapping machine, auxiliary perforate connects case and additional lock plate valve is arranged on auxiliary connection pipe fitting, then connect valve, wiring pipe fitting and air accumulator by second to link together, link together by connecting valve, auxiliary connection pipe fitting and air accumulator by first;
B () is opened additional lock plate valve and first and is connected valve, close the second connection valve and air bleeding valve, allowing auxiliary tapping machine move down and starting auxiliary tapping machine makes it rotate, high pressure gas pipeline is carried out perforate, the high-pressure gas in high pressure gas pipeline is made to enter in air accumulator, observe the Pressure gauge on air accumulator, make manometric pressure identical with the pressure of high pressure gas pipeline;
C () opens sandwich valve, the second connection valve and exhaust-valve, the air that the high-pressure gas butted line pipe fitting in air accumulator, perforate connect in case and sandwich valve cavity is utilized to replace, it is full of after combustion gas until above-mentioned cavity, close exhaust-valve, wiring pipe fitting, perforate is made to connect the chamber pressure of case and sandwich valve identical with the pressure of high pressure gas pipeline, then allowing tapping machine move down and starting tapping machine makes it rotate, to high pressure gas pipeline perforate.
A kind of method that high pressure gas pipeline is carried out perforate of the present invention, wherein: after step (c) terminates, closes the first connection valve and second and connects valve, then open air bleeding valve and exhaust-valve.
Compared with prior art; pressure equaliser and the method that high pressure gas pipeline is carried out perforate is blocked due to fluid line press and open holes of the present invention; avoid high pressure in high-pressure gas pipeline to intense impact produced by puncher, protect the safety of production safety and operator.
Accompanying drawing explanation
Fig. 1 is the structural representation of fluid line press and open holes of the present invention closure pressure equaliser.
In FIG, label 1 is high pressure gas pipeline; Label 2 is wiring pipe fitting; Label 3 is sandwich valve; Label 4 connects case for perforate; Label 5 is tapping machine; Label 6 is exhaust-valve; Label 7 is Pressure gauge; Label 8 is air accumulator; Label 9 is the first connection valve; Label 10 is auxiliary tapping machine; Label 11 connects case for auxiliary perforate; Label 12 is additional lock plate valve; Label 13 is the second connection valve; Label 14 is air bleeding valve; Label 15 is auxiliary connection pipe fitting.
Detailed description of the invention
As shown in Figure 1, the fluid line press and open holes closure pressure equaliser of the present invention includes: wiring pipe fitting 2, tapping machine 5, adjuvant grafting spool part 15, auxiliary tapping machine 10 and air accumulator 8, the inner chamber of wiring pipe fitting 2 is that perforate connects case 4, case 4 is connected built with tapping machine 5 and sandwich valve 3 in perforate, when sandwich valve 3 closes, perforate is connected case 4 and is divided into two parts by sandwich valve 3, when sandwich valve 3 is opened, it is an entirety that perforate connects case 4 connection, the inner chamber of auxiliary connection pipe fitting 15 connects case 11 for auxiliary perforate, case 11 is connected built with auxiliary tapping machine 10 and additional lock plate valve 12 in auxiliary perforate, when additional lock plate valve 12 closes, auxiliary perforate is connected case 11 and is divided into two parts by additional lock plate valve 12, when additional lock plate valve 12 is opened, it is an entirety that auxiliary perforate connects case 11 connection, perforate connects case 4 and connects case 11 be connected with air accumulator 8 respectively through pipeline with auxiliary perforate, air accumulator 8 is also equipped with Pressure gauge 7 and air bleeding valve 14.Connect in auxiliary perforate and connect valve 9 equipped with first between case 11 and air accumulator 8. Connecting in perforate and connect valve 13 equipped with second between case 4 and air accumulator 8, hole connects and is also equipped with exhaust-valve 6 on case 4.
A kind of method that high pressure gas pipeline is carried out perforate by fluid line press and open holes closure pressure equaliser as shown in Figure 1, it comprises the following steps:
A wiring pipe fitting 2 and auxiliary connection pipe fitting 15 are respectively welded on separated by a distance two being fixed on high pressure gas pipeline 1 by (), by tapping machine 5, perforate connects case 4 and sandwich valve 3 is arranged on the upper of wiring pipe fitting 2, by auxiliary tapping machine 10, auxiliary perforate connects case 11 and additional lock plate valve 12 is arranged on auxiliary connection pipe fitting 15, then connect valve 13, wiring pipe fitting 2 and air accumulator 8 by second to link together, link together by connecting valve 9, auxiliary connection pipe fitting 15 and air accumulator 8 by first;
B () is opened additional lock plate valve 12 and first and is connected valve 9, close the second connection valve 13 and air bleeding valve 14, allowing auxiliary tapping machine 10 move down and starting auxiliary tapping machine 10 makes it rotate, high pressure gas pipeline 1 is carried out perforate, the high-pressure gas in high pressure gas pipeline 1 is made to enter in air accumulator 8, observing the Pressure gauge 7 on air accumulator 8, the pressure making Pressure gauge 7 is identical with the pressure of high pressure gas pipeline 1;
C () is opened sandwich valve 3, second and is connected valve 13 and exhaust-valve 6, the air that the high-pressure gas butted line pipe fitting 2 in air accumulator 8, perforate connect in case 4 and sandwich valve 3 cavity is utilized to replace, it is full of after combustion gas until above-mentioned cavity, close exhaust-valve 6, wiring pipe fitting 2, perforate is made to connect the chamber pressure of case 4 and sandwich valve (3) identical with the pressure of high pressure gas pipeline 1, then allowing tapping machine 5 move down and starting tapping machine 5 makes it rotate, to high pressure gas pipeline 1 perforate;
D (), after step (c) terminates, is closed the first connection valve 9 and second and is connected valve 13, then open air bleeding valve 14 and exhaust-valve 6.
Embodiment described above is only that the preferred embodiment of the present invention is described; not the scope of the present invention is defined; under the premise designing spirit without departing from the present invention; various deformation that technical scheme is made by this area ordinary skill technical staff and improvement, all should fall in the protection domain that claims of the present invention are determined.

Claims (7)

1. a fluid line press and open holes closure pressure equaliser, it includes: wiring pipe fitting (2) and tapping machine (5), the inner chamber of wiring pipe fitting (2) is that perforate connects case (4), case (4) is connected built with tapping machine (5) and sandwich valve (3) in perforate, during sandwich valve (3) Guan Bi, perforate is connected case (4) and is divided into two parts by sandwich valve (3), when sandwich valve (3) is opened, it is an entirety that perforate connects case (4) connection, it is characterized in that: it also includes: auxiliary connection pipe fitting (15), auxiliary tapping machine (10) and air accumulator (8), the inner chamber of auxiliary connection pipe fitting (15) connects case (11) for auxiliary perforate, case (11) is connected built with auxiliary tapping machine (10) and additional lock plate valve (12) in auxiliary perforate, during additional lock plate valve (12) Guan Bi, auxiliary perforate is connected case (11) and is divided into two parts by additional lock plate valve (12), when additional lock plate valve (12) is opened, it is an entirety that auxiliary perforate connects case (11) connection, perforate connects case (4) and connects case (11) be connected with air accumulator (8) respectively through pipeline with auxiliary perforate.
2. fluid line press and open holes blocks pressure equaliser as claimed in claim 1, it is characterised in that: connect in auxiliary perforate and connect valve (9) equipped with first between case (11) and air accumulator (8).
3. fluid line press and open holes blocks pressure equaliser as claimed in claim 2, it is characterised in that: connect in perforate and connect valve (13) equipped with second between case (4) and air accumulator (8).
4. fluid line press and open holes closure pressure equaliser as described in Claims 2 or 3, it is characterised in that: described air accumulator (8) is also equipped with Pressure gauge (7) and air bleeding valve (14).
5. as claimed in claim 4 fluid line press and open holes closure pressure equaliser, it is characterised in that: described perforate connects and is also equipped with exhaust-valve (6) on case (4).
6. one kind utilizes the method that high pressure gas pipeline is carried out perforate by fluid line press and open holes closure pressure equaliser described in claim 5, it is characterised in that:
A wiring pipe fitting (2) and auxiliary connection pipe fitting (15) are respectively welded on separated by a distance two being fixed on high pressure gas pipeline (1) by (), by tapping machine (5), perforate connects case (4) and sandwich valve (3) is arranged on the upper of wiring pipe fitting (2), tapping machine (10) will be assisted, auxiliary perforate connects case (11) and additional lock plate valve (12) is arranged on auxiliary connection pipe fitting (15), then valve (13) is connected by second, wiring pipe fitting (2) and air accumulator (8) link together, by connecting valve (9) by first, auxiliary connection pipe fitting (15) and air accumulator (8) link together,
B () is opened additional lock plate valve (12) and first and is connected valve (9), close the second connection valve (13) and air bleeding valve (14), allowing auxiliary tapping machine (10) move down and starting auxiliary tapping machine (10) makes it rotate, high pressure gas pipeline (1) is carried out perforate, the high-pressure gas in high pressure gas pipeline (1) is made to enter in air accumulator (8), observing the Pressure gauge (7) on air accumulator (8), the pressure making Pressure gauge (7) is identical with the pressure of high pressure gas pipeline (1);
C () opens sandwich valve (3), second connects valve (13) and exhaust-valve (6), utilize high-pressure gas butted line pipe fitting (2) in air accumulator (8), the air that perforate connects in case (4) and sandwich valve (3) cavity is replaced, it is full of after combustion gas until above-mentioned cavity, close exhaust-valve (6), make wiring pipe fitting (2), it is identical with the pressure of high pressure gas pipeline (1) that perforate connects the chamber pressure of case (4) and sandwich valve (3), then allowing tapping machine (5) move down and starting tapping machine (5) makes it rotate, to high pressure gas pipeline (1) perforate.
7. method as claimed in claim 6, it is characterised in that: after step (c) terminates, close the first connection valve (9) and second and connect valve (13), then open air bleeding valve (14).
CN201610066851.5A 2016-01-29 2016-01-29 Fluid line press and open holes block pressure equaliser to high pressure gas pipeline boring method Active CN105673993B (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107262762A (en) * 2017-07-07 2017-10-20 上海煤气第二管线工程有限公司 A kind of construction method of gas pipeline with angled aperture
CN107588280A (en) * 2017-10-24 2018-01-16 上海煤气第管线工程有限公司 Natural gas line expansive cylinder stopping transportation pressure method for blocking
CN107990074A (en) * 2017-11-22 2018-05-04 连云港新奥燃气有限公司 Natural gas line band gas boring device
CN112628509A (en) * 2020-12-16 2021-04-09 上海能源建设集团有限公司 Method for preventing iron filings from backflushing in process of drilling and connecting new pipe with pressure in gas high-pressure pipeline

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CN203628140U (en) * 2013-11-15 2014-06-04 重庆大唐国际彭水水电开发有限公司 Under-pressure plugging structure of bottom ring drain pipe of Francis type water turbine-generator unit
CN204603372U (en) * 2015-04-21 2015-09-02 中船重工(沈阳)辽海输油设备有限公司 With the hydraulic drilling machine of equilibrium function
CN205350710U (en) * 2016-01-29 2016-06-29 北京市燃气集团有限责任公司 Gas pipeline tapping shutoff pressure equaliser

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07204911A (en) * 1994-01-25 1995-08-08 Cosmo Koki Co Ltd Boring device for fluid tube
US5439331A (en) * 1994-03-31 1995-08-08 Tdw Delaware, Inc. High pressure tapping apparatus
US6012878A (en) * 1997-12-02 2000-01-11 Tdw Delaware, Inc. Pressure balanced subsea tapping machine
US6648562B1 (en) * 2001-06-08 2003-11-18 Charles D. Calkins Apparatus for tapping a hole in a pipeline
GB2482671A (en) * 2010-08-09 2012-02-15 Mark Edward Klinck A hot-tapping unit having pressure equalising means to balance the drill rod
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107262762A (en) * 2017-07-07 2017-10-20 上海煤气第二管线工程有限公司 A kind of construction method of gas pipeline with angled aperture
CN107262762B (en) * 2017-07-07 2019-05-07 上海煤气第二管线工程有限公司 A kind of construction method of the gas pipeline with angled aperture
CN107588280A (en) * 2017-10-24 2018-01-16 上海煤气第管线工程有限公司 Natural gas line expansive cylinder stopping transportation pressure method for blocking
CN107588280B (en) * 2017-10-24 2019-02-15 上海煤气第一管线工程有限公司 Natural gas line expansive cylinder stopping transportation pressure method for blocking
CN107990074A (en) * 2017-11-22 2018-05-04 连云港新奥燃气有限公司 Natural gas line band gas boring device
CN107990074B (en) * 2017-11-22 2020-01-07 连云港新奥燃气有限公司 Gas-carrying perforating device for natural gas pipeline
CN112628509A (en) * 2020-12-16 2021-04-09 上海能源建设集团有限公司 Method for preventing iron filings from backflushing in process of drilling and connecting new pipe with pressure in gas high-pressure pipeline

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