CN101852310B - Construction method for online connecting steel water pipelines - Google Patents
Construction method for online connecting steel water pipelines Download PDFInfo
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- CN101852310B CN101852310B CN2010101999556A CN201010199955A CN101852310B CN 101852310 B CN101852310 B CN 101852310B CN 2010101999556 A CN2010101999556 A CN 2010101999556A CN 201010199955 A CN201010199955 A CN 201010199955A CN 101852310 B CN101852310 B CN 101852310B
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- jackscrew
- pipe nipple
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Abstract
The invention discloses a construction method for online connecting steel water pipelines, which belongs to the method for connecting steel water supply pipelines. The method mainly comprises the following steps of: welding a jackscrew nut and a pipe nipple on the pipe wall of a main water supply pipe; scribing an opening line along the wall of the main water supply pipe on the inner side of a welding line of the pipe nipple, sequentially arranging a slide valve, a second pipe nipple, a jackscrew and a stop plate on the tail part of the pipe nipple, arranging a drain valve on the lower part of the stop plate, connecting the jackscrew with a handle and the jackscrew nut after the jackscrew runs through the stop plate and a flange, and exposing the handle of the jackscrew out of the stop plate; closing the drain valve, repeatedly rotating the handle of the jackscrew, cutting the wall of the main water supply pipe by pushing and pulling the jackscrew, rotating the jackscrew when the wall of the main water supply pipe is completely separated from the main water supply pipe, pulling the cut pipe wall out of the slide valve, closing the slide valve and opening the drain valve to drain residual water; and disassembling the stop plate, the jackscrew and the second pipe nipple, and connecting the flange of the slide valve and an external pipeline. The method has the advantages of the capacity of connecting new pipelines without cutting off a water supply and influencing life and production, low construction cost, convenient and fast operation, and remarkable social benefit and economic benefit.
Description
Technical field:
The present invention relates to a kind of steel water supply line wiring method of construction, particularly relate to a kind of online connecting steel water pipelines method of construction that under the state of not cutting off the water, connects new pipeline.
Background technique:
Domestic construction or extension project construction are produced mostly or the domestic water pipe network is all wanted to be connected with being responsible for to net.Often a lot of engineerings do not have spare interface on the net the person in charge, and the way of wiring after generally taking during construction to cut off the water certainly will influence like this and produce and life, especially production unit is caused certain loss possibly.
Summary of the invention:
The objective of the invention is in order to solve the problem that prior art is cut off the water the life of wiring construction infection and produced, in line with not influencing production, construction and life, producing the principle of neglecting neither, provide a kind of online connecting steel water pipelines method of construction of taking over line of under the state of not cutting off the water, drawing.
Realize above-mentioned purpose by the following technical solutions: a kind of online connecting steel water pipelines method of construction, this method of construction comprises the steps:
A kind of online connecting steel water pipelines method of construction, this method of construction comprises the steps:
A. weld pipe nipple, jackscrew nut:
Welding jackscrew nut and pipe nipple on the tube wall of main-supply;
B., aperture lines is set
Aperture lines is drawn along the main-supply wall in weld seam inboard at pipe nipple, is the center with the jackscrew nut, is the summit center line of crossing with the aperture lines, by line the main-supply wall is divided into polylith, polishes the main-supply wall by the position of ruling with polishing machine along aperture lines;
C., gate valve, second pipe nipple and jackscrew, blind plate and drain valve are installed
At the afterbody of pipe nipple gate valve, second pipe nipple, jackscrew and blind plate are installed successively, drain valve is installed in bottom at blind plate, and the jackscrew that has handle passes blind plate, pipe nipple is connected with the jackscrew nut, and the jackscrew handle is exposed to outside the blind plate, each connected node must seal, in case leak in the work progress;
D tube wall lock out operation
Close drain valve, rotate the jackscrew handle repeatedly, the main-supply wall that is about to scale off with the jackscrew push-and-pull, it is cracked under the effect of alternating stress gradually and separate, when the main-supply wall with after main-supply thoroughly separates, the rotation jackscrew is moved the tube wall of leaving behind beyond the gate valve to, close gate valve, the water valve that begins to rehearse releases Yu Shui;
The external pipeline of e
Lay down blind plate and jackscrew, pull down second pipe nipple, the gate valve flange is connected with external pipeline.
Adopt technique scheme, this method is compared with conventional method, has not cut off the water, do not influence life and produce the advantage that can connect new pipeline, and construction cost is extremely low, simple operation.Have remarkable social benefit and economic benefit.
Description of drawings
Fig. 1 is the connection diagram of pipe nipple of the present invention and jackscrew nut.
Fig. 2 is the figure that is provided with of aperture lines of the present invention.
Fig. 3 is a scheme of installation of the present invention.
Fig. 4 is that the present invention takes over the schematic representation after finishing.
Among the figure, main-supply 1, pipe nipple 2, jackscrew nut 3, aperture lines 4, gate valve 5, the second pipe nipples 6, blind plate 7, jackscrew handle 8, drain valve 9, nut 10, jackscrew 11, gate valve flange 12, pipeline interface 13.
Embodiment
Present embodiment is a kind of online connecting steel water pipelines method of construction, and this method is operated according to following step:
Preparation of construction
Before construction, need to prepare pipe joint, gate valve 5, pipe pipe nipple, blind plate 7, drain valve 9, jackscrew 11 and various tool etc.
Construction sequence
1. weld pipe nipple 2, jackscrew nut 3
See Fig. 1, welding jackscrew nut 3 and pipe nipple 2 on the tube wall of main-supply 1, pipe nipple 2 is the pipe nipples that have flange.In order to guarantee welding quality, each weld seam is groove welding.
2. aperture lines is set
See Fig. 2, aperture lines 4 is drawn along the main-supply wall in weld seam inboard at pipe nipple 2, is the center with jackscrew nut 3, is the summit center line of crossing with aperture lines 4, to be divided into four or more by the main-supply wall of line part, these pieces that are divided into are parts of preparing cutting-out.Utilize polishing machine to make it form otch then along the position of being rule of aperture lines 4 polishing main-supply walls; Grinding depth is calculated according to pipe network water pressure and is determined.
3. gate valve 5, second pipe nipple 6 and jackscrew 11, blind plate 7 and drain valve 9 are installed
See Fig. 3, afterbody at pipe nipple 2 is installed gate valve 5 successively, gate valve 5 is an one with gate valve flange 12, gate valve 5 the other ends connect second pipe nipple 6, the tail end of second pipe nipple 6 connects blind plate 7, and drain valve 9 is installed in the bottom of blind plate 7, and the jackscrew 11 usefulness nuts 10 that have handle 8 are fixing with blind plate 7, jackscrew 11 passes blind plate 7, second pipe nipple 6, gate valve flange 12, pipe nipple flange and pipe nipple 2 and is connected with jackscrew nut 3, and jackscrew handle 8 is exposed to outside the blind plate 7.
4. tube wall lock out operation:
More than work and just can begin to carry out the lock out operation of otch tube wall after finishing.Close drain valve 9 before the operation earlier, rotate the jackscrew handle 8 on the jackscrew 11 then repeatedly,, it is cracked under the effect of alternating stress gradually and separate with the tube wall that jackscrew 11 push-and-pulls are about to scale off.When tube wall with after main-supply 1 thoroughly separates, rotation jackscrew 11 is moved the tube wall of leaving behind beyond the gate valve 5 to, closes gate valve 5, opens drain valve 9 and releases Yu Shui.
5. external pipeline
See Fig. 4, lay down blind plate 7 and jackscrew 11, pull down second pipe nipple 6.The pipeline interface 13 of main-supply 1 has formed like this, the other end of gate valve flange 12 is connected with external pipeline get final product.
The notice of this method
The degree of depth of polishing otch will be calculated according to the pressure of main-supply 1, and can not cross deeply also can not be shallow excessively, crosses the dark fugitive water of mill easily, cross shallow when operation frangibility tube wall not.Must tracking measurement during polishing.
To be enough to hold the tube wall of being pulled out etc. when calculating the length of second pipe nipple 6, can close smoothly to guarantee gate valve 5.
Must consider the rigidity of main-supply 1 during construction, need in case of necessity main-supply 1 is carried out supporting or reinforcing.
More than disclosed only be specific embodiments of the invention; though the present invention discloses as above with preferred embodiment; but the present invention is not limited thereto; any those skilled in the art can think variation; in not breaking away from design philosophy of the present invention and scope; the present invention is carried out various changes and retouching, all should drop within protection scope of the present invention.
Claims (1)
1. an online connecting steel water pipelines method of construction is characterized in that this method of construction comprises the steps:
A. weld pipe nipple (2), jackscrew nut (3):
Welding jackscrew nut (3) and pipe nipple (2) on the tube wall of main-supply;
B., aperture lines is set
Aperture lines (4) is drawn along the main-supply wall in weld seam inboard at pipe nipple (2), with jackscrew nut (3) is the center, with aperture lines (4) is the summit center line of crossing, and by line main-supply wall (1) is divided into polylith, polishes the main-supply wall by the position of ruling with polishing machine along aperture lines (4);
C., gate valve (5), second pipe nipple (6) and jackscrew (11), blind plate (7) and drain valve (9) are installed
At the afterbody of pipe nipple (2) gate valve (5), second pipe nipple (6), jackscrew (11) and blind plate (7) are installed successively, drain valve (9) is installed in bottom at blind plate (7), the jackscrew (11) that has handle passes blind plate (7), pipe nipple is connected with jackscrew nut (3), jackscrew handle (8) is exposed to outside the blind plate (7), each connected node must seal, in case leak in the work progress;
D. tube wall lock out operation
Close drain valve (9), rotate jackscrew handle (8) repeatedly, the main-supply wall that is about to scale off with jackscrew (11) push-and-pull, it is cracked under the effect of alternating stress gradually and separate, when the main-supply wall with after main-supply (1) thoroughly separates, the rotation jackscrew is moved the tube wall of leaving behind beyond the gate valve to, close gate valve, the water valve that begins to rehearse releases Yu Shui;
E. external pipeline
Lay down blind plate and jackscrew, pull down second pipe nipple (6), gate valve flange (12) is connected with external pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101999556A CN101852310B (en) | 2010-06-11 | 2010-06-11 | Construction method for online connecting steel water pipelines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101999556A CN101852310B (en) | 2010-06-11 | 2010-06-11 | Construction method for online connecting steel water pipelines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101852310A CN101852310A (en) | 2010-10-06 |
| CN101852310B true CN101852310B (en) | 2011-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101999556A Active CN101852310B (en) | 2010-06-11 | 2010-06-11 | Construction method for online connecting steel water pipelines |
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| Country | Link |
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| CN (1) | CN101852310B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107542998A (en) * | 2016-06-28 | 2018-01-05 | 中国二十冶集团有限公司 | Increase the construction method of branch line newly on original buried pipeline |
| CN107755745A (en) * | 2017-12-12 | 2018-03-06 | 江苏联峰工业设备安装工程有限公司 | Gas piping press and open holes frock |
| CN112797245A (en) * | 2020-10-23 | 2021-05-14 | 中国华冶科工集团有限公司 | Construction method of pipeline with pressing collision port |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2702820A1 (en) * | 1993-03-17 | 1994-09-23 | Hombravella Abbad Marcelo | System for obtaining a tapping in a live fluid pipe |
| CN1587557A (en) * | 2004-08-11 | 2005-03-02 | 上海市政工程设计研究院 | Connecting method for pipeline branch pipe |
| CN1194835C (en) * | 2002-11-12 | 2005-03-30 | 江苏法尔胜技术开发中心 | Method and device for open pore on steel plastic compound tube with pressure |
| CN1257359C (en) * | 2004-05-25 | 2006-05-24 | 葛文宇 | Connecting method for grafting pipe |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08120714A (en) * | 1994-10-26 | 1996-05-14 | Kurimoto Ltd | Method and device for mounting snap tap |
| JP5166938B2 (en) * | 2008-03-31 | 2013-03-21 | 積水化学工業株式会社 | How to connect existing pipe lining pipe and branch pipe |
-
2010
- 2010-06-11 CN CN2010101999556A patent/CN101852310B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2702820A1 (en) * | 1993-03-17 | 1994-09-23 | Hombravella Abbad Marcelo | System for obtaining a tapping in a live fluid pipe |
| CN1194835C (en) * | 2002-11-12 | 2005-03-30 | 江苏法尔胜技术开发中心 | Method and device for open pore on steel plastic compound tube with pressure |
| CN1257359C (en) * | 2004-05-25 | 2006-05-24 | 葛文宇 | Connecting method for grafting pipe |
| CN1587557A (en) * | 2004-08-11 | 2005-03-02 | 上海市政工程设计研究院 | Connecting method for pipeline branch pipe |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2009-243566A 2009.10.22 |
| JP特开平8-120714A 1996.05.14 |
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| CN101852310A (en) | 2010-10-06 |
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