CN104174894A - On-line drilling method for gas instrument pressure obtaining pipe - Google Patents
On-line drilling method for gas instrument pressure obtaining pipe Download PDFInfo
- Publication number
- CN104174894A CN104174894A CN201410364129.0A CN201410364129A CN104174894A CN 104174894 A CN104174894 A CN 104174894A CN 201410364129 A CN201410364129 A CN 201410364129A CN 104174894 A CN104174894 A CN 104174894A
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- Prior art keywords
- ball valve
- manual ball
- pipe
- steel band
- drill bit
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/04—Tapping pipe walls, i.e. making connections through the walls of pipes while they are carrying fluids; Fittings therefor
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
The invention discloses an on-line drilling method for a gas instrument pressure obtaining pipe. The method comprises steps as follows: steel belt linings and edge fixing steel belts are manufactured; surface treatment is performed on the outer diameter of the pipe in a to-be-dilled position, and then the surface of the pipe is covered with a layer of rubber skin; the rubber skin is covered with the steel belt linings, a first manual ball valve is perpendicular to the pipe and upward, and nuts and screw holes are perpendicular to the pipe and downward; the nuts and the screw holes are screwed up, and the edge fixing steel belts are fixed on the edge of the outer surface of the rubber skin in a similar way; high-pressure water is connected to a second manual ball valve, and meanwhile, the second manual ball valve is closed; the first manual ball valve is opened, a hand drill bit is placed at a to-be-drilled point through the first manual ball valve, when drilling is started, the second manual ball valve is opened, the drill bit is pulled out quickly when the drill bit drills through the gas pipe, the first manual ball valve and the second manual ball valve are closed, and on-line drilling of the gas pipe is finished at the moment. According to the method, the operation safety is improved through high-pressure water sealing, the cost is low, and the efficiency is high.
Description
Technical field
The present invention relates to coal gas instrument pressure pipe field, relate in particular to the method for the online perforate of a kind of coal gas instrument pressure pipe.
Background technology
Project for some reconstructions or enlarging, along with what produce, carry out gas pressure pipeline and cannot stop the supple of gas or steam, often various manometers need to be installed on the pipeline with coal gas online, to monitor its flow and pressure, therefore and need to draw and connect connecting pipe, just must carry out online perforate pressure to pipeline, and perforate on gas piping forbids to have spark generation, otherwise will cause violent blast, bring destructive consequence.Especially for the gas piping with negative pressure, its danger is huge.
Summary of the invention
The invention provides the method for the online perforate of a kind of coal gas instrument pressure pipe, the invention solves the problem of the online pressure of coal gas, improved security, described below:
A method for the online perforate of coal gas instrument pressure pipe, said method comprising the steps of:
(1) the first manual ball valve, the second manual ball valve is good with screwed connection with connecting pipe respectively, and described the second manual ball valve becomes 10 ° to 20 ° angles to weld with described the first manual ball valve;
(2) make fixedly steel band of steel band lining and edge;
(3) on described steel band lining, hold hole successfully, the size in hole is identical with the internal diameter of connecting pipe, and by the hole butt welding on described connecting pipe and described steel band lining;
(4) at wish tapping, outer diameter tube is carried out to surface treatment, then at pipe surface, cover one deck rubber peel;
(5) described steel band lining is wrapped in to the outside of described rubber peel, and described the first manual ball valve makes progress perpendicular to pipeline, and nut, screw hole vertical pipe is downward;
(6) by described nut, described screw hole is tightened, and makes rubber peel described in the compacting of described steel band lining, in like manner by described edge fixedly steel band be also fixed on the outer surface edge of described rubber peel;
(7) water under high pressure is connected to described the second manual ball valve place, described the second manual ball valve is closed simultaneously;
(8) before spudding in, described the first manual ball valve is opened, hand drill silk head by described the first manual ball valve to point to be bored, when spudding in, open described the second manual ball valve, when drill bit bores gas piping, extract rapidly drill bit, close described the first manual ball valve and described the second manual ball valve, the now online perforate of gas piping completes.
The wide 300mm of described rubber peel, thick 10mm, length is slightly little than the external diameter of pipeline.
The beneficial effect of technical scheme provided by the invention is: the in the situation that the present invention cannot closing at fuel gas, the solution of a kind of simple economy safety of can yet be regarded as, by make the security of operation greatly improve with high pressure water seal pressure pipe, the fastening leakage that more reduces coal gas of secondary at its edge, except its necessary security protection, only need common drill bit and the water that possesses certain pressure, by improve the security of operation with high pressure water seal, and with low cost, efficiency is high.
Accompanying drawing explanation
Fig. 1 is the front view of pipeline;
Fig. 2 is the left view of pipeline;
Fig. 3 is the fixedly left view of steel band of steel band lining and edge;
Fig. 4 is the flow chart of the method for the online perforate of a kind of coal gas instrument pressure pipe.
In accompanying drawing, the list of parts of each label representative is as follows:
1: gas piping; 2: steel band lining;
3: rubber peel; 4: connecting pipe;
5: edge is steel band fixedly; 6: the first manual ball valves;
7: the second manual ball valves; 8: nut;
9: screw hole; 10: hand drill entrance;
11: cooling water inlet.
The specific embodiment
For making the object, technical solutions and advantages of the present invention clearer, below embodiment of the present invention is described further in detail.
Below in conjunction with the flow process of the method for the detailed online perforate of this kind of coal gas instrument pressure pipe of description of Fig. 1, Fig. 2, Fig. 3 and Fig. 4, described below:
101: the first manual ball valve 6, the second manual ball valve 7 is good with connecting pipe 4 use screwed connections respectively, and 6 one-tenth 10 ° to 20 ° angles of the second manual ball valve 7 and the first manual ball valve weld, by perforate, make to be communicated with between the first manual ball valve 6, the second manual ball valve 7;
102: make fixedly steel band 5 of steel band lining 2 and edge;
Referring to Fig. 3, the Length Ratio outer diameter tube of steel band lining 2 is about 150mm, and the wide about 200mm of steel band, does respectively two screw holes at the two ends of steel band lining 2, i.e. four screw holes altogether.The edge fixedly width of steel band 5 is 100mm, only does a set of screw and perforate, and its way is identical with the way of steel band lining 2, and the embodiment of the present invention does not repeat this.
103: on steel band lining 2, hold hole successfully, the size in hole is identical with the internal diameter of connecting pipe 4, and by the hole butt welding on connecting pipe 4 and steel band lining 2;
104: in the outer diameter tube of wanting tapping, carry out surface treatment, then at pipe surface, cover the rubber peel 3 of the wide about 300mm of one deck, thick about 10mm, the length of rubber peel 3 is slightly little than the external diameter of pipeline;
Wherein, by outer diameter tube is processed, can get rid of some rough impurity, make pipe surface as far as possible level and smooth clean.The thickness of rubber peel 3, width can also be other numerical value, and the embodiment of the present invention be take 300mm, thick about 10mm and described as example, and during specific implementation, the embodiment of the present invention is not restricted this.
105: the steel band lining 2 of making is wrapped in to the center, outside of rubber peel 3, and the first manual ball valve 6 makes progress perpendicular to pipeline, and nut 8, screw hole 9 vertical pipes are downward;
106: by nut 8, screw hole 9 is tightened, make steel band lining 2 compacting rubber peels 3, in like manner by edge fixedly steel band 5 be also fixed on the outer surface edge of rubber peel 3;
107: water under high pressure is connected to the second manual ball valve 7 places, the second manual ball valve 7 is closed simultaneously;
108: before spudding in, the first manual ball valve 6 is opened, hand drill silk head by the first manual ball valve 6 to point to be bored, when spudding in, open the second manual ball valve 7, now firmly spud in, when drill bit bores gas piping, extract rapidly drill bit, close the first manual ball valve 6 and the second manual ball valve 7, the now online perforate of gas piping completes.
Drilling operation: first operating personnel need be with gas safety protective face mask and oxygen cylinder, wears with oneself gas alarm instrument, and hand drill need be with waterproof canopy, in case water under high pressure flows out and makes hand drill charged from the first manual ball valve 6.Before spudding in, the first manual ball valve 6 is opened, hand drill silk head by the first manual ball valve 6 to point to be bored, when spudding in, open the second manual ball valve 7, now firmly spud in, when boring gas piping, extracts rapidly on drill bit drill bit, close the first manual ball valve 6 and the second manual ball valve 7, the now online perforate of gas piping completes, manual ball valve 6 and external meters docking.
During specific implementation, different for the position of different its perforates of medium, it is example that the embodiment of the present invention be take pipeline perforate vertically upward, but which kind of situation no matter, the first manual ball valve 6 all the time with nut 8, screw hole 9 is on same straight line.
The embodiment of the present invention to the model of each device except do specified otherwise, the model of other devices does not limit, as long as can complete the device of above-mentioned functions, all can.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (2)
1. a method for the online perforate of coal gas instrument pressure pipe, is characterized in that, said method comprising the steps of:
(1) the first manual ball valve, the second manual ball valve is good with screwed connection with connecting pipe respectively, and described the second manual ball valve becomes 10 ° to 20 ° angles to weld with described the first manual ball valve;
(2) make fixedly steel band of steel band lining and edge;
(3) on described steel band lining, hold hole successfully, the size in hole is identical with the internal diameter of connecting pipe, and by the hole butt welding on described connecting pipe and described steel band lining;
(4) at wish tapping, outer diameter tube is carried out to surface treatment, then at pipe surface, cover one deck rubber peel;
(5) described steel band lining is wrapped in to the outside of described rubber peel, and described the first manual ball valve makes progress perpendicular to pipeline, and nut, screw hole vertical pipe is downward;
(6) by described nut, described screw hole is tightened, and makes rubber peel described in the compacting of described steel band lining, in like manner by described edge fixedly steel band be also fixed on the outer surface edge of described rubber peel;
(7) water under high pressure is connected to described the second manual ball valve place, described the second manual ball valve is closed simultaneously;
(8) before spudding in, described the first manual ball valve is opened, hand drill silk head by described the first manual ball valve to point to be bored, when spudding in, open described the second manual ball valve, when drill bit bores gas piping, extract rapidly drill bit, close described the first manual ball valve and described the second manual ball valve, the now online perforate of gas piping completes.
2. the method for the online perforate of a kind of coal gas instrument pressure pipe according to claim 1, is characterized in that, the wide 300mm of described rubber peel, thick 10mm, and length is slightly little than the external diameter of pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410364129.0A CN104174894B (en) | 2014-07-28 | 2014-07-28 | A kind of method of the coal gas online perforate of instrument pressure pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410364129.0A CN104174894B (en) | 2014-07-28 | 2014-07-28 | A kind of method of the coal gas online perforate of instrument pressure pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104174894A true CN104174894A (en) | 2014-12-03 |
| CN104174894B CN104174894B (en) | 2016-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410364129.0A Active CN104174894B (en) | 2014-07-28 | 2014-07-28 | A kind of method of the coal gas online perforate of instrument pressure pipe |
Country Status (1)
| Country | Link |
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| CN (1) | CN104174894B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105562769A (en) * | 2016-01-07 | 2016-05-11 | 河南锐驰管道工程技术有限公司 | Composite pipeline hot tapping plugging method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200963697Y (en) * | 2006-09-18 | 2007-10-24 | 湖南华菱涟源钢铁有限公司 | Operation pipeline trepanning machine |
| DE102007045431A1 (en) * | 2007-09-22 | 2009-04-02 | Egeplast Werner Strumann Gmbh & Co. Kg | Tapping Bridge |
| CN202192294U (en) * | 2011-08-05 | 2012-04-18 | 沈阳飞研航空设备有限公司 | Pipeline pressure perforating machine |
| CN102962492A (en) * | 2012-11-09 | 2013-03-13 | 上海煤气第二管线工程有限公司 | Two-stage sheathing tapping machine and pipeline tapping method |
| CN203409305U (en) * | 2013-06-29 | 2014-01-29 | 昆明钢铁集团有限责任公司 | High-efficiency pipe pressure tapping machine |
-
2014
- 2014-07-28 CN CN201410364129.0A patent/CN104174894B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200963697Y (en) * | 2006-09-18 | 2007-10-24 | 湖南华菱涟源钢铁有限公司 | Operation pipeline trepanning machine |
| DE102007045431A1 (en) * | 2007-09-22 | 2009-04-02 | Egeplast Werner Strumann Gmbh & Co. Kg | Tapping Bridge |
| CN202192294U (en) * | 2011-08-05 | 2012-04-18 | 沈阳飞研航空设备有限公司 | Pipeline pressure perforating machine |
| CN102962492A (en) * | 2012-11-09 | 2013-03-13 | 上海煤气第二管线工程有限公司 | Two-stage sheathing tapping machine and pipeline tapping method |
| CN203409305U (en) * | 2013-06-29 | 2014-01-29 | 昆明钢铁集团有限责任公司 | High-efficiency pipe pressure tapping machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105562769A (en) * | 2016-01-07 | 2016-05-11 | 河南锐驰管道工程技术有限公司 | Composite pipeline hot tapping plugging method |
| CN105562769B (en) * | 2016-01-07 | 2018-07-06 | 锐驰高科股份有限公司 | Multiple tube pipeline press and open holes method for blocking |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104174894B (en) | 2016-11-23 |
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Address after: 300301 Dongli district no time street Jintang highway bridge, No. ten, No. Applicant after: MCC TIANGONG GROUP TIANJIN CO., LTD. Address before: 300301 Tianjin Dongli District flawless Street Applicant before: Tianjin MCC20 Construction Co., Ltd. |
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