CN103743583A - Natural gas conveying pipe system pressure test device - Google Patents
Natural gas conveying pipe system pressure test device Download PDFInfo
- Publication number
- CN103743583A CN103743583A CN201310696404.4A CN201310696404A CN103743583A CN 103743583 A CN103743583 A CN 103743583A CN 201310696404 A CN201310696404 A CN 201310696404A CN 103743583 A CN103743583 A CN 103743583A
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- Prior art keywords
- cryogenic liquid
- valve
- liquid pump
- pipe
- cryogenic
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Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 239000003345 natural gas Substances 0.000 title claims abstract description 15
- 238000012360 testing method Methods 0.000 title abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 52
- 239000007789 gas Substances 0.000 claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims description 19
- 239000006200 vaporizer Substances 0.000 abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000004382 potting Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 239000003949 liquefied natural gas Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The invention discloses a natural gas conveying pipe system pressure test device comprising a cryogenic liquid storage tank, cryogenic liquid pumps and an air-heated vaporizer, wherein the cryogenic liquid storage tank is connected with the cryogenic liquid pumps through a pipe, the cryogenic liquid pumps are respectively connected with an air return port and the air-heated vaporizer through a pipe, and the air-heated vaporizer is connected with a gas utilization point through a pipe. The natural gas conveying pipe system pressure test device has the following advantages: high-voltage test on a system can be completed in a short time, the test safety is high, tightness test can be immediately carried out, the test cycle is shortened, and cost is saved.
Description
Technical field
The present invention relates to a kind of natural gas transport piping pressure experimental device.
Background technology
At present, the strength test technique of known liquefied natural gas (LNG) and natural gas high pressure pipe system is all to come as test(ing) medium by water or dry air, but take water as the follow-up dry run of test(ing) medium consuming time very long, and be difficult to remove completely intrasystem water, equipment component needs isolation at the trial.With dry air, do experiment air quality is had relatively high expectations, and the larger system of compressor and auxiliary device, especially volume that high test pressures (25.5 Mpa) need to be large-scale, just more to the requirement of equipment.For system complex, the system test difficulty that welding valve member is many is just larger.
Therefore, be badly in need of a kind of improved technology and solve existing this problem in prior art.
Summary of the invention
The invention provides a kind of natural gas transport piping pressure experimental device.
The technical solution used in the present invention is:
A kind of natural gas transport piping pressure experimental device, comprise cryogenic liquid tank, cryogenic liquid pump and air-heating type gasifier, described cryogenic liquid tank connects cryogenic liquid pump by pipe, described cryogenic liquid pump connects respectively gas returning port and air-heating type gasifier by pipe, described air-heating type gasifier by pipe with gas point, be connected.
Described cryogenic liquid pump is provided with safety valve I.
Pipe between described cryogenic liquid tank and cryogenic liquid pump is provided with safety valve II and low temperature major axis stop valve, and described safety valve II is near cryogenic liquid tank end, and described low temperature major axis stop valve is near cryogenic liquid pump end.
Pipe between described gas returning port and cryogenic liquid pump is provided with safety valve IV and cryogenic globe valve III, and described safety valve IV is near gas returning port end, and described cryogenic globe valve III is near cryogenic liquid pump end.
Pipe between described air-heating type gasifier and cryogenic liquid pump is provided with high-pressure check valve and cryogenic globe valve I, and described high-pressure check valve is near cryogenic liquid pump end, and described cryogenic globe valve I is near air-heating type gasifier end.
Described air-heating type gasifier and with being provided with successively tensimeter, safety valve III, cryogenic globe valve II, high temperature break valve I and high temperature break valve II on the pipe between gas point, is connected cryogenic liquid pump by superpressure temperature interlock on the pipe of described cryogenic globe valve II and high temperature break valve I.
Advantage of the present invention is: the high-potting of completion system in the short time, experimental safe is high, can carry out immediately tightness test again, shortens the test period, saves cost.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Fig. 1 is schematic diagram of the present invention.
Fig. 2 is procedure chart of the present invention.
Wherein: 1, cryogenic liquid tank, 2, cryogenic liquid pump, 3, air-heating type gasifier, 4, pipe, 5, gas returning port, 6, safety valve I, 7, safety valve II, 8, low temperature major axis stop valve, 9, tensimeter, 10, use gas point, 11, superpressure temperature interlock, 12, high-pressure check valve, 13, cryogenic globe valve I, 14, safety valve III, 15, cryogenic globe valve II, 16, high temperature break valve I, 17, high temperature break valve II, 18, safety valve IV, 19, cryogenic globe valve III.
Embodiment
As illustrated in fig. 1 and 2, a kind of natural gas transport piping pressure experimental device of the present invention, comprise cryogenic liquid tank 1, cryogenic liquid pump 2 and air-heating type gasifier 3, described cryogenic liquid tank 1 connects cryogenic liquid pump 2 by pipe 4, described cryogenic liquid pump 2 is provided with safety valve I 6, pipe 4 between described cryogenic liquid tank 1 and cryogenic liquid pump 2 is provided with safety valve II 7 and low temperature major axis stop valve 8, described safety valve II 7 is near cryogenic liquid tank 1 end, described low temperature major axis stop valve 8 is near cryogenic liquid pump 2 ends, described cryogenic liquid pump 2 connects respectively gas returning port 5 and air-heating type gasifier 3 by pipe 4, pipe 4 between described gas returning port 5 and cryogenic liquid pump 2 is provided with safety valve IV 18 and cryogenic globe valve III 19, described safety valve IV 18 is near gas returning port 5 ends, described cryogenic globe valve III 19 is near cryogenic liquid pump 2 ends, pipe 4 between described air-heating type gasifier 3 and cryogenic liquid pump 2 is provided with high-pressure check valve 12 and cryogenic globe valve I 13, described high-pressure check valve 12 is near cryogenic liquid pump 2 ends, described cryogenic globe valve I 13 is near air-heating type gasifier 3 ends, described air-heating type gasifier 3 passes through pipe 4 and is connected with gas point 10, described air-heating type gasifier 3 and with being provided with successively tensimeter 9 on the pipe 4 between gas point 10, safety valve III 14, cryogenic globe valve II 15, high temperature break valve I 16 and high temperature break valve II 17, on the pipe 4 of described cryogenic globe valve II 15 and high temperature break valve I 16, by superpressure temperature interlock 11, be connected cryogenic liquid pump 2, the high-potting of completion system in short time, experimental safe is high, can carry out again immediately tightness test, shorten the test period, save cost.
The high-potting of completion system at short notice, also can eliminate the dry work for a long time of classic method later stage simultaneously, can also fundamentally eliminate residual the brought accident potential of water in system.By the strict monitoring to process of the test, test procedure and pilot system, and the training of testing crew reaches the object that completes safely whole test.After the strength test of system finishes, can carry out immediately tightness test, shorten the test period.Compare water does experiment and can save frock in test and interim pad cost and labor cost simultaneously.
Claims (6)
1. a natural gas transport piping pressure experimental device, it is characterized in that: comprise cryogenic liquid tank, cryogenic liquid pump and air-heating type gasifier, described cryogenic liquid tank connects cryogenic liquid pump by pipe, described cryogenic liquid pump connects respectively gas returning port and air-heating type gasifier by pipe, described air-heating type gasifier by pipe with gas point, be connected.
2. a kind of natural gas transport piping pressure experimental device according to claim 1, is characterized in that: described cryogenic liquid pump is provided with safety valve I.
3. a kind of natural gas transport piping pressure experimental device according to claim 1, it is characterized in that: the pipe between described cryogenic liquid tank and cryogenic liquid pump is provided with safety valve II and low temperature major axis stop valve, described safety valve II is near cryogenic liquid tank end, and described low temperature major axis stop valve is near cryogenic liquid pump end.
4. a kind of natural gas transport piping pressure experimental device according to claim 1, it is characterized in that: the pipe between described gas returning port and cryogenic liquid pump is provided with safety valve IV and cryogenic globe valve III, described safety valve IV is near gas returning port end, and described cryogenic globe valve III is near cryogenic liquid pump end.
5. a kind of natural gas transport piping pressure experimental device according to claim 1, it is characterized in that: the pipe between described air-heating type gasifier and cryogenic liquid pump is provided with high-pressure check valve and cryogenic globe valve I, described high-pressure check valve is near cryogenic liquid pump end, and described cryogenic globe valve I is near air-heating type gasifier end.
6. a kind of natural gas transport piping pressure experimental device according to claim 1, it is characterized in that: described air-heating type gasifier and with being provided with successively tensimeter, safety valve III, cryogenic globe valve II, high temperature break valve I and high temperature break valve II on the pipe between gas point, is connected cryogenic liquid pump by superpressure temperature interlock on the pipe of described cryogenic globe valve II and high temperature break valve I.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310696404.4A CN103743583B (en) | 2013-12-18 | 2013-12-18 | A kind of gas delivering pipe system pressure experimental device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310696404.4A CN103743583B (en) | 2013-12-18 | 2013-12-18 | A kind of gas delivering pipe system pressure experimental device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103743583A true CN103743583A (en) | 2014-04-23 |
| CN103743583B CN103743583B (en) | 2016-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310696404.4A Active CN103743583B (en) | 2013-12-18 | 2013-12-18 | A kind of gas delivering pipe system pressure experimental device |
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| Country | Link |
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| CN (1) | CN103743583B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104237020A (en) * | 2014-09-11 | 2014-12-24 | 北京强度环境研究所 | Low-temperature pipeline high-pressure burst testing device |
| CN108266641A (en) * | 2018-01-16 | 2018-07-10 | 中科睿凌江苏低温设备有限公司 | A kind of liquid gas supply system of automation control |
| CN110057658A (en) * | 2019-04-22 | 2019-07-26 | 龙源 | The cooling device and method of half gas low temperature high-pressure metal pipe explosion bulge test of heavy caliber |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101750470A (en) * | 2008-12-17 | 2010-06-23 | 中国石油天然气股份有限公司 | Performance testing device for gas pipeline drag reduction agent |
| CN202083517U (en) * | 2011-03-17 | 2011-12-21 | 河南汉威电子股份有限公司 | Gas pipeline pressure monitoring device |
| CN102589823A (en) * | 2012-02-16 | 2012-07-18 | 新兴能源装备股份有限公司 | Airtightness test and nitrogen replacement device used for high-pressure air cylinder |
| CN203732290U (en) * | 2013-12-18 | 2014-07-23 | 南通太平洋海洋工程有限公司 | Natural gas conveying pipe system pressure test device |
-
2013
- 2013-12-18 CN CN201310696404.4A patent/CN103743583B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101750470A (en) * | 2008-12-17 | 2010-06-23 | 中国石油天然气股份有限公司 | Performance testing device for gas pipeline drag reduction agent |
| CN202083517U (en) * | 2011-03-17 | 2011-12-21 | 河南汉威电子股份有限公司 | Gas pipeline pressure monitoring device |
| CN102589823A (en) * | 2012-02-16 | 2012-07-18 | 新兴能源装备股份有限公司 | Airtightness test and nitrogen replacement device used for high-pressure air cylinder |
| CN203732290U (en) * | 2013-12-18 | 2014-07-23 | 南通太平洋海洋工程有限公司 | Natural gas conveying pipe system pressure test device |
Non-Patent Citations (1)
| Title |
|---|
| 邓晓峰等: "天然气管道氮气干燥置换工艺及实际应用", 《石油与天然气化工》, vol. 40, no. 3, 31 March 2011 (2011-03-31), pages 325 - 328 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104237020A (en) * | 2014-09-11 | 2014-12-24 | 北京强度环境研究所 | Low-temperature pipeline high-pressure burst testing device |
| CN104237020B (en) * | 2014-09-11 | 2017-01-18 | 北京强度环境研究所 | Low-temperature pipeline high-pressure burst testing device |
| CN108266641A (en) * | 2018-01-16 | 2018-07-10 | 中科睿凌江苏低温设备有限公司 | A kind of liquid gas supply system of automation control |
| CN110057658A (en) * | 2019-04-22 | 2019-07-26 | 龙源 | The cooling device and method of half gas low temperature high-pressure metal pipe explosion bulge test of heavy caliber |
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| Publication number | Publication date |
|---|---|
| CN103743583B (en) | 2016-08-17 |
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Address after: No. 888, Hai Gong Avenue, Qidong, Jiangsu Province, Jiangsu Patentee after: Nantong CIMC Pacific Ocean Engineering Co., Ltd. Address before: 226200 Jiangsu city of Nantong province Qidong City Yin Yang Zhen Yu Feng Cun Patentee before: Sinopacific Offshore & Engineering Co., Ltd. |