CN104174894B - A kind of method of the coal gas online perforate of instrument pressure pipe - Google Patents
A kind of method of the coal gas online perforate of instrument pressure pipe Download PDFInfo
- Publication number
- CN104174894B CN104174894B CN201410364129.0A CN201410364129A CN104174894B CN 104174894 B CN104174894 B CN 104174894B CN 201410364129 A CN201410364129 A CN 201410364129A CN 104174894 B CN104174894 B CN 104174894B
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- Prior art keywords
- ball valve
- manual ball
- steel band
- rubber peel
- pipe
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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
A kind of method that the invention discloses coal gas online perforate of instrument pressure pipe, the method includes: make steel band lining and steel band is fixed at edge；Being intended to tapping, outer diameter tube is carried out surface process, then cover one layer of rubber peel at pipe surface；Steel band lining is wrapped in the outside of rubber peel, and first manual ball valve is perpendicular to pipeline upwards, and nut, screw hole vertical pipe is downward；By nut, screw hole is tightened, and edge is in like manner fixed steel band and is also secured at the outer surface edge of rubber peel；Water under high pressure is connected at the second manual ball valve, the second manual ball valve is closed simultaneously；Being opened by first manual ball valve, hand drill silk head is by first manual ball valve to point to be drilled, when spudding in, open the second manual ball valve, extracting rapidly drill bit when gas piping is drilled through by drill bit, close first manual ball valve and the second manual ball valve, the now online perforate of gas piping completes.This method by improving the safety of operation and with low cost with high pressure water seal, and efficiency is high.
Description
Technical field
The present invention relates to coal gas instrument pressure pipe field, a kind of method particularly relating to coal gas online perforate of instrument pressure pipe.
Background technology
For some reconstructions or the project of enlarging, carry out gas pressure pipeline cannot stop the supple of gas or steam along with produce, generally require
The various manometers of online installation on the pipeline with coal gas, in order to monitor its flow and pressure, and need to draw to connect connecting pipe,
Therefore it is necessary for pipeline is carried out online perforate pressure, and the perforate on gas piping forbids have spark to produce, otherwise will
Violent blast can be caused, bring destructive consequence.Particularly with the gas piping of band negative pressure, its danger is huge.
Summary of the invention
A kind of method that the invention provides coal gas online perforate of instrument pressure pipe, the present invention solves asking of the online pressure of coal gas
Topic, improves safety, described below:
A kind of method of coal gas online perforate of instrument pressure pipe, said method comprising the steps of:
(1) first manual ball valve, the second manual ball valve is good with connecting pipe screwed connection respectively, and described second-hand
Dynamic ball valve becomes 10 ° to 20 ° angles to weld with described first manual ball valve；
(2) make steel band lining and steel band is fixed at edge；
(3) holding hole successfully on described steel band lining, the size in hole is identical with the internal diameter of connecting pipe, and by described connecting pipe with
Hole butt welding on described steel band lining；
(4) at desire tapping, outer diameter tube is carried out surface process, then cover one layer of rubber peel at pipe surface；
(5) described steel band lining is wrapped in the outside of described rubber peel, and described first manual ball valve be perpendicular to pipeline to
On, and nut, screw hole vertical pipe is downward；
(6) by described nut, described screw hole is tightened so that described steel band lining is compacted described rubber peel, in like manner by institute
State edge to fix steel band and be also secured at the outer surface edge of described rubber peel；
(7) water under high pressure is connected at described second manual ball valve, described second manual ball valve is closed simultaneously；
(8) before spudding in, being opened by described first manual ball valve, hand drill silk head is the most to be drilled by described first manual ball valve
Point, when spudding in, opens described second manual ball valve, extracts rapidly drill bit when gas piping is drilled through by drill bit, closes institute
Stating first manual ball valve and described second manual ball valve, the now online perforate of gas piping completes.
Described rubber peel width 300mm, thick 10mm, length is slightly little than the external diameter of pipeline.
The technical scheme that the present invention provides provides the benefit that: the present invention, in the case of fuel gas cannot be closed, can yet be regarded as
A kind of solution of simple economy safety, by making the safety of operation be greatly improved with high pressure water seal pressure pipe, its limit
The secondary fastening of edge more decreases the leakage of coal gas, in addition to the security protection of its necessity, it is only necessary to normal drill bit and possessing
The water of certain pressure, by improving the safety 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 left view that steel band is fixed at steel band lining and edge；
Fig. 4 is the flow chart of a kind of method of coal gas online perforate of instrument pressure pipe.
In accompanying drawing, the list of parts representated by each label is as follows:
1: gas piping；2: steel band lining；
3: rubber peel；4: connecting pipe；
5: steel band is fixed at edge；6: first manual ball valve；
7: the second manual ball valves；8: nut；
9: screw hole；10: hand drill entrance；
11: cooling water inlet.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below embodiment of the present invention is made the most detailed
Thin description.
Below in conjunction with the method describing this kind of coal gas online perforate of instrument pressure pipe that Fig. 1, Fig. 2, Fig. 3 and Fig. 4 are detailed
Flow process, described below:
101: first manual ball valve the 6, second manual ball valve 7 is good with screwed connection with connecting pipe 4 respectively, and second-hand
Dynamic ball valve 7 becomes 10 ° to 20 ° angles to weld with first manual ball valve 6, by perforate make first manual ball valve 6, the
Connect between two manual ball valves 7；
102: make steel band lining 2 and steel band 5 is fixed at edge；
Seeing Fig. 3, the length of steel band lining 2 is about 150mm than outer diameter tube, and steel band width about 200mm, at steel band lining
The two ends of 2 do two screw holes, i.e. total of four screw hole respectively.It is 100mm that the width of steel band 5 is fixed at edge, only does
A set of screw and perforate, its way is identical with the way of steel band lining 2, and this is not repeated by the embodiment of the present invention.
103: hold hole on steel band lining 2 successfully, the size in hole is identical with the internal diameter of connecting pipe 4, and by connecting pipe 4 and steel
With the hole butt welding on lining 2；
104: carry out surface process in the outer diameter tube being intended to tapping, then pipe surface cover a slice width about 300mm,
The rubber peel 3 of 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, some rough impurity can be got rid of, make pipe surface as far as possible
Smooth clean.The thickness of rubber peel 3, width can also be other numerical value, and the embodiment of the present invention is with 300mm, thickness about
Illustrating as a example by 10mm, when implementing, this is not restricted by the embodiment of the present invention.
105: the steel band lining 2 made is wrapped in the center, outside of rubber peel 3, and first manual ball valve 6 is perpendicular to
Upwards, and nut 8, screw hole 9 vertical pipe is downward for pipeline；
106: by nut 8, screw hole 9 is tightened so that steel band lining 2 is compacted rubber peel 3, in like manner edge is fixed steel band
5 outer surface edge being also secured at rubber peel 3；
107: be connected to water under high pressure, at the second manual ball valve 7, be closed by the second manual ball valve 7 simultaneously；
108: before spudding in, first manual ball valve 6 is opened, hand drill silk head by first manual ball valve 6 to point to be drilled,
When spudding in, open the second manual ball valve 7, the most firmly spud in, extract rapidly drill bit when gas piping is drilled through by drill bit,
Closing first manual ball valve 6 and the second manual ball valve 7, the now online perforate of gas piping completes.
Drilling operation: first operator need band gas safety protective mast and oxygen cylinder, body-worn gas alarm instrument, hands
Brill need to carry waterproof canopy, in case water under high pressure flows out from first manual ball valve 6 and makes hand drill charged.Before spudding in, by first-hand
Dynamic ball valve 6 is opened, and hand drill silk head to point to be drilled, when spudding in, opens the second manual ball valve 7 by first manual ball valve 6,
The most firmly spud in, extract rapidly drill bit when gas piping is drilled through by drill bit, close first manual ball valve 6 and second manual
Ball valve 7, the now online perforate of gas piping completes, manual ball valve 6 and external meters docking.
When implementing, the position for different its perforates of medium is different, and the embodiment of the present invention is with pipeline vertically upward
As a example by perforate, but no matter which kind of situation, first manual ball valve 6 all the time with nut 8, screw hole 9 is on the same line.
The embodiment of the present invention is to the model of each device in addition to doing specified otherwise, and the model of other devices does not limits, as long as
The device of above-mentioned functions can be completed.
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, do not represent the quality of embodiment.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all in the spirit and principles in the present invention
Within, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (2)
1. the method for the coal gas online perforate of instrument pressure pipe, it is characterised in that said method comprising the steps of:
(1) first manual ball valve, the second manual ball valve is good with connecting pipe screwed connection respectively, and described second-hand
Dynamic ball valve becomes 10 ° to 20 ° angles to weld with described first manual ball valve；
(2) make steel band lining and steel band is fixed at edge；
(3) holding hole successfully on described steel band lining, the size in hole is identical with the internal diameter of connecting pipe, and by described connecting pipe with
Hole butt welding on described steel band lining；
(4) at desire tapping, outer diameter tube is carried out surface process, then cover one layer of rubber peel at pipe surface；
(5) described steel band lining is wrapped in the outside of described rubber peel, and described first manual ball valve be perpendicular to pipeline to
On, and nut, screw hole vertical pipe is downward；
(6) by described nut, described screw hole is tightened so that described steel band lining is compacted described rubber peel, in like manner by institute
State edge to fix steel band and be also secured at the outer surface edge of described rubber peel；
(7) water under high pressure is connected at described second manual ball valve, described second manual ball valve is closed simultaneously；
(8) before spudding in, being opened by described first manual ball valve, hand drill silk head is the most to be drilled by described first manual ball valve
Point, when spudding in, opens described second manual ball valve, extracts rapidly drill bit when gas piping is drilled through by drill bit, closes institute
Stating first manual ball valve and described second manual ball valve, the now online perforate of gas piping completes.
The method of a kind of coal gas online perforate of instrument pressure pipe the most according to claim 1, it is characterised in that described
Rubber peel width 300mm, thick 10mm, length is slightly little than the outer perimeter 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 CN104174894A (en) | 2014-12-03 |
| CN104174894B true CN104174894B (en) | 2016-11-23 |
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Family Applications (1)
| 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)
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| CN (1) | CN104174894B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (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 |
| CN102962492B (en) * | 2012-11-09 | 2014-08-13 | 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 |
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- 2014-07-28 CN CN201410364129.0A patent/CN104174894B/en active Active
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| Publication number | Publication date |
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| CN104174894A (en) | 2014-12-03 |
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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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