CN103527846A - Technology for conveying and storing gas by using phi1219/phi1016 natural gas pipeline - Google Patents
Technology for conveying and storing gas by using phi1219/phi1016 natural gas pipeline Download PDFInfo
- Publication number
- CN103527846A CN103527846A CN201210589009.1A CN201210589009A CN103527846A CN 103527846 A CN103527846 A CN 103527846A CN 201210589009 A CN201210589009 A CN 201210589009A CN 103527846 A CN103527846 A CN 103527846A
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- Prior art keywords
- pipeline
- pipe
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- gas
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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
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/028—Laying or reclaiming pipes on land, e.g. above the ground in the ground
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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
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
- F16L58/10—Coatings characterised by the materials used by rubber or plastics
- F16L58/1054—Coatings characterised by the materials used by rubber or plastics the coating being placed outside the pipe
-
- 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
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
- F16L9/147—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups comprising only layers of metal and plastics with or without reinforcement
Abstract
Provided is a technology for conveying and storing gas by using a phi1219/phi1016 natural gas pipeline. According to the technology, construction processes are arranged reasonably, construction efficiency is improved, construction safety is guaranteed, very high operability is achieved, and the pipelines laid in the technology can also play a role in storing the gas; as for pipeline crossing, when the pipeline crosses fast channels, expressways and urban arterial roads, a direction drilling crossing mode is adopted, a casing pipe is added for protection, special treatment is conducted during deep burying and construction of slope-protection revetments, and therefore safety and reliability are facilitated, investment is saved, and construction and maintenance management are facilitated. As for erosion resistance of the pipeline, three PE layers are used for an outer erosion resistant layer of the high-pressure natural gas pipeline, and therefore the erosion resistance is superior; to prevent erosion of pinholes and damaged positions caused by production, conveying and construction, an impressed current cathodic protection method is applied to the whole pipeline.
Description
Technical field
Real name invention relates to natural gas line construction field, especially a kind of by Φ 1219/ Φ 1016 natural gas line fortune gas storage techniques.
Background technique
Rock gas is one of safer combustion gas, and it is not containing carbon monoxide, and also lta, once leak, can upwards spread immediately, is difficult for gathering formation explosive gas, and Security is higher.Adopt rock gas as the energy, can reduce the consumption of coal and oil, thereby greatly improve environmental pollution problem; Rock gas is as a kind of clean energy resource, can reduce sulfur dioxide and dust discharge amount nearly 100%, reduces CO2 emissions 60% and oxynitride discharge amount 50%, and contributes to reduce acid rain and form, and the global greenhouse effect of releiving, fundamentally improves environmental quality.
The inside of natural gas line has been full of the rock gas gas of high pressure, and therefore high natural gas line construction difficulty is large, and construction technical requirement is high, and how reasonably arranging construction technology flow process is the major issue that needs solution in work progress.
Summary of the invention
The object of the invention is to propose a kind of by Φ 1219/ Φ 1016 natural gas line fortune gas storage techniques, it has reasonably arranged construction process, has improved the efficiency of construction, has guaranteed the safety of construction, have very high operability, the pipeline of laying also has the function of stored-gas.
It is that concrete construction process is as follows that the present invention solves technological scheme that its technical problem adopts:
The welding of employing spiral seam submerged arc, steel pipe material is L485 material, total length 9.4Km, storage gas pipeline specification is φ 1219/ Φ 1016 * 17.5mm, long 9.4 Km;
A. pipe laying mode adopts ditch to bury to lay, 1.5 meters of pipeline pipe top, plains region buried depths, 1.2 meters of pipe top, the cubic meter of stone location earthing such as ,Di mountain, hills, cubic meter of stone location pipe trench is than dark 0.3 meter of the design pipe end, and is backfilled to after the design pipe end absolute altitude channelling again with fine earth;
B. laying of Unfavorable Conditions pipeline, mainly contains the improvement on landslide, the improvement of the improvement of avalanche, seismatic method for pipeline, Earthquake Fault Zone;
C. pipeline welding and checking measure: for river crossing, highway, pass through the pipe welding seam of under ground piping, cable, optical cable, the weld bond that links of steel pipe and elbow, the mouth that touches that connects head after pressure testing carries out 100% radiographic inspection;
Treatment measures when d. pipeline intersects with other pipelines, cable, optical cable: while intersecting with other pipelines, vertical clearance is from being not less than 0.3 meter, when being less than 0.3 meter, hard insulating spacer is set between two pipes, and 10 meters of above anticorrosive coat thickness that strengthen are respectively extended in both sides, point of intersection;
While e. intersecting with cable, optical cable, vertical clearance is from being not less than 0.5 meter, and 10 meters of above pipeline section and cables are respectively extended in both sides, point of intersection, and strengthen anticorrosive coat thickness;
F. pipeline is worn leap: this pipeline adopts band cement sleeve pipe highway crossing, and the buried depth on sleeve pipe top is not less than 1.2 meters, and sleeve pipe extends outer 2 meters of gutter, adds Band-Type Magnesium Anode protection on the gas pipeline in sleeve pipe;
G. pipeline corrosion protection adopts high pressure gas pipeline three layers of PE for external anti-corrosion layer; the shallow mound of main line and Plain adopt common three layers of PE; cross pipeline adopts and adds three layers of PE of intensity level; all corrosion prevention operations are prefabricated at impregnating plant; on-the-spot repaired mouth is mended wound, and this pipeline is carried out to impressed current cathodic protection method completely.
Adopt technical solutions according to the invention, have and have following beneficial effect:
1, the present invention has realized air delivery function, has reached again gas storage function.When pipeline actual motion pressure 4.0MPa, in pipe, gas-storing capacity (while being equivalent to normal 1 barometric pressure) is 42.036 myriametres
3, than normal gas storage capability, improved 40 times;
2, the present invention has adopted Directional Drilling to pass through mode for passing through express passway, expressway, arterial street, township level highway is adopted push pipe or adds heavy excavation and pass through, add casing protection, when buried depth and bank protection fort bank, carry out special processing, be conducive to safety reliability and reduce investment outlay, convenient construction and maintenance management;
3, pipeline corrosion protection of the present invention adopts high pressure gas pipeline three layers of PE for external anti-corrosion layer.Three-decker extruded polyethylene has made up the deficiency of double-layer structure extruded polyethylene adhesive property, and the shortcoming of the FBE scarce capacity of resistance to mechanical shock, has both complementary, and anti-corrosive properties are better superior.In order to prevent, because producing, transport, construct the pin hole of generation and the corrosion of injury region, this pipeline being carried out to impressed current cathodic protection method completely;
4, pipeline of the present invention adopts band cement sleeve pipe highway crossing, and the buried depth on sleeve pipe top is not less than 1.2 meters, and sleeve pipe extends outer 2 meters of gutter, adds Band-Type Magnesium Anode protection on the gas pipeline in sleeve pipe.
Embodiment
Below in conjunction with specific embodiment, the present invention will be further described: construction process is as follows:
Adopt spiral seam submerged arc welding (SSAW) steel pipe (L485 material), total length 9.4Km, storage gas pipeline specification is φ 1219/ Φ 1016 * 17.5mm, long 9.4 Km;
A. pipe laying mode adopts ditch to bury to lay, 1.5 meters of pipeline pipe top, plains region buried depths, 1.2 meters of pipe top, the cubic meter of stone location earthing such as ,Di mountain, hills, cubic meter of stone location pipe trench is than dark 0.3 meter of the design pipe end, and is backfilled to after the design pipe end absolute altitude channelling again with fine earth;
B. laying of Unfavorable Conditions pipeline, mainly contains the improvement on landslide, the improvement of the improvement of avalanche, seismatic method for pipeline, Earthquake Fault Zone;
C. pipeline welding and checking measure: for river crossing, highway, pass through the pipe welding seam of under ground piping, cable, optical cable, the weld bond that links of steel pipe and elbow, the mouth that touches that connects head after pressure testing carries out 100% radiographic inspection;
Treatment measures when d. pipeline intersects with other pipelines, cable, optical cable: while intersecting with other pipelines, vertical clearance is from being not less than 0.3 meter, when being less than 0.3 meter, hard insulating spacer is set between two pipes, and 10 meters of above anticorrosive coat thickness that strengthen are respectively extended in both sides, point of intersection;
While e. intersecting with cable, optical cable, vertical clearance is from being not less than 0.5 meter, and 10 meters of above pipeline section and cables are respectively extended in both sides, point of intersection, and strengthen anticorrosive coat thickness;
F. pipeline is worn leap: this pipeline adopts band cement sleeve pipe highway crossing, and the buried depth on sleeve pipe top is not less than 1.2 meters, and sleeve pipe extends outer 2 meters of gutter, adds Band-Type Magnesium Anode protection on the gas pipeline in sleeve pipe;
G. pipeline corrosion protection adopts high pressure gas pipeline three layers of PE for external anti-corrosion layer; the shallow mound of main line and Plain adopt common three layers of PE; cross pipeline adopts and adds three layers of PE of intensity level; all corrosion prevention operations are prefabricated at impregnating plant; on-the-spot repaired mouth is mended wound, and this pipeline is carried out to impressed current cathodic protection method completely.
Embodiment 1:
Luoyang City's pipe natural gas utilizes 50.2 kilometers of engineering high pressure transmission and distribution network first phase construction project pipework circuit overall lengths, and wherein the Φ 1219/ western two wires of Φ 1016 * 17.5mm enters Lip river high-pressure natural gas transmission and distribution network 9.4Km; Follow-up φ 508 * 11.9mm east outer shroud sub-high pressure A level natural gas transmission and distribution pipe network 20.8Km; φ 508 * 9.5mm east outer shroud sub-high pressure A level natural gas transmission and distribution pipe network 15.5Km; Xian Ru Lip river, Anyang to Luoyang φ 508 * 9.5mm sub-high pressure A level natural gas transmission and distribution pipe network 4.5Km, 7 of supporting You Menzhanji along the line voltage regulating stations.Φ 1219/ Φ 1016 * 17.5mm size pipeline mainly the passes through Lip river goldenrain tree express passway few Lip river of 1 time, Zheng expressway 1 time, other Pipeline Crossing Program engineerings comprise small rivers and irrigation canals and ditches 2 times, provincial highway 1 time, auxiliary construction has SCADA system, nearly 3 hundred million of gross investment completely.
Embodiment 2:
During pipeline actual motion pressure 4.3 MPa, in pipe, gas-storing capacity (while being equivalent to normal 1 barometric pressure) is (1.219/2-0.035/2) 2 * 3.14 * 43 * 9400=44.48(myriametre 3).When pipeline actual motion pressure 4.0MPa, in pipe, gas-storing capacity (while being equivalent to normal 1 barometric pressure) is (1.219/2-0.035/2) 2 * 3.14 * 40.0 * 9400=42.036(myriametre 3).
Claims (1)
1. by Φ 1219/ Φ 1016 natural gas line fortune gas storage techniques, it is characterized in that concrete construction process is as follows:
The welding of employing spiral seam submerged arc, steel pipe material is L485 material, total length 9.4Km, storage gas pipeline specification is φ 1219/ Φ 1016 * 17.5mm, long 9.4 Km;
A. pipe laying mode adopts ditch to bury to lay, 1.5 meters of pipeline pipe top, plains region buried depths, 1.2 meters of pipe top, the cubic meter of stone location earthing such as ,Di mountain, hills, cubic meter of stone location pipe trench is than dark 0.3 meter of the design pipe end, and is backfilled to after the design pipe end absolute altitude channelling again with fine earth;
B. laying of Unfavorable Conditions pipeline, mainly contains the improvement on landslide, the improvement of the improvement of avalanche, seismatic method for pipeline, Earthquake Fault Zone;
C. pipeline welding and checking measure: for river crossing, highway, pass through the pipe welding seam of under ground piping, cable, optical cable, the weld bond that links of steel pipe and elbow, the mouth that touches that connects head after pressure testing carries out 100% radiographic inspection;
Treatment measures when d. pipeline intersects with other pipelines, cable, optical cable: while intersecting with other pipelines, vertical clearance is from being not less than 0.3 meter, when being less than 0.3 meter, hard insulating spacer is set between two pipes, and 10 meters of above anticorrosive coat thickness that strengthen are respectively extended in both sides, point of intersection;
While e. intersecting with cable, optical cable, vertical clearance is from being not less than 0.5 meter, and 10 meters of above pipeline section and cables are respectively extended in both sides, point of intersection, and strengthen anticorrosive coat thickness;
F. pipeline is worn leap: this pipeline adopts band cement sleeve pipe highway crossing, and the buried depth on sleeve pipe top is not less than 1.2 meters, and sleeve pipe extends outer 2 meters of gutter, adds Band-Type Magnesium Anode protection on the gas pipeline in sleeve pipe;
G. pipeline corrosion protection adopts high pressure gas pipeline three layers of PE for external anti-corrosion layer; the shallow mound of main line and Plain adopt common three layers of PE; cross pipeline adopts and adds three layers of PE of intensity level; all corrosion prevention operations are prefabricated at impregnating plant; on-the-spot repaired mouth is mended wound, and this pipeline is carried out to impressed current cathodic protection method completely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210589009.1A CN103527846A (en) | 2012-12-31 | 2012-12-31 | Technology for conveying and storing gas by using phi1219/phi1016 natural gas pipeline |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210589009.1A CN103527846A (en) | 2012-12-31 | 2012-12-31 | Technology for conveying and storing gas by using phi1219/phi1016 natural gas pipeline |
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| CN103527846A true CN103527846A (en) | 2014-01-22 |
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| CN201210589009.1A Pending CN103527846A (en) | 2012-12-31 | 2012-12-31 | Technology for conveying and storing gas by using phi1219/phi1016 natural gas pipeline |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104948833A (en) * | 2015-06-10 | 2015-09-30 | 上海煤气第二管线工程有限公司 | Mountainous region gas pipeline construction method |
Citations (3)
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| WO2008005837A2 (en) * | 2006-06-30 | 2008-01-10 | Global Precision Solutions, Llp. | System and method for digging navigation |
| CA2597025A1 (en) * | 2007-05-09 | 2008-05-02 | Daniel E. Davis | Pipelayer and method for loading pipelayer or excavator for transportation |
| CN102434717A (en) * | 2011-12-16 | 2012-05-02 | 中国建筑第八工程局有限公司 | Construction method of joist steel pipe-jacking work pit |
-
2012
- 2012-12-31 CN CN201210589009.1A patent/CN103527846A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008005837A2 (en) * | 2006-06-30 | 2008-01-10 | Global Precision Solutions, Llp. | System and method for digging navigation |
| CA2597025A1 (en) * | 2007-05-09 | 2008-05-02 | Daniel E. Davis | Pipelayer and method for loading pipelayer or excavator for transportation |
| CN102434717A (en) * | 2011-12-16 | 2012-05-02 | 中国建筑第八工程局有限公司 | Construction method of joist steel pipe-jacking work pit |
Non-Patent Citations (4)
| Title |
|---|
| 刘承根: ""宝鸡-汉中天然气管道工程"", 《西安石油大学硕士学位论文》, 31 December 2011 (2011-12-31) * |
| 张岁怀: ""哈尔滨市天然气长输管道输送设计"", 《大庆石油学院硕士论文》, 31 March 2010 (2010-03-31), pages 5 * |
| 王介龙: ""中国石油山东天然气管网工程可行性研究"", 《吉林大学硕士学位论文》, 30 September 2011 (2011-09-30), pages 29 * |
| 石宇熙: ""天然气高中压管道同沟敷设施工技术"", 《化工设备与管》, vol. 40, 10 February 2003 (2003-02-10), pages 44 - 47 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104948833A (en) * | 2015-06-10 | 2015-09-30 | 上海煤气第二管线工程有限公司 | Mountainous region gas pipeline construction method |
| CN104948833B (en) * | 2015-06-10 | 2017-01-18 | 上海煤气第二管线工程有限公司 | Mountainous region gas pipeline construction method |
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Application publication date: 20140122 |