CN203732290U - Natural gas conveying pipe system pressure test device - Google Patents

Natural gas conveying pipe system pressure test device Download PDF

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Publication number
CN203732290U
CN203732290U CN201320836001.0U CN201320836001U CN203732290U CN 203732290 U CN203732290 U CN 203732290U CN 201320836001 U CN201320836001 U CN 201320836001U CN 203732290 U CN203732290 U CN 203732290U
Authority
CN
China
Prior art keywords
cryogenic liquid
valve
liquid pump
pipe
cryogenic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201320836001.0U
Other languages
Chinese (zh)
Inventor
姚宁
张�林
孟昌顺
刘园元
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nantong Cimc Pacific Ocean Marine Engineering Co ltd
Original Assignee
Sinopacific Offshore and Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sinopacific Offshore and Engineering Co Ltd filed Critical Sinopacific Offshore and Engineering Co Ltd
Priority to CN201320836001.0U priority Critical patent/CN203732290U/en
Application granted granted Critical
Publication of CN203732290U publication Critical patent/CN203732290U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a natural gas conveying pipe system pressure test device comprising a low temperature liquid storage groove, a low temperature liquid pump, and an air-heated vaporizer. The low temperature liquid storage groove is connected with the low temperature liquid pump by a pipe, and the low temperature liquid pump is respectively connected with a gas return port and the air-heated vaporizer by pipes. The air-heated vaporizer is connected with a gas utilization point by the pipe. The natural gas conveying pipe system pressure test device is advantageous in that the high pressure test of the system can be completed in a short time, the test safety performance is high, and the tightness test can be carried out immediately; the test period can be shorted, and the costs can be saved.

Description

A kind of natural gas transport piping pressure experimental device
Technical field
The utility model 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.
Utility model content
The utility model provides a kind of natural gas transport piping pressure experimental device.
The technical solution adopted in the utility model 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.
The utility model has the advantages that: 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 utility model is described in further detail.
Fig. 1 is schematic diagram of the present utility model.
Fig. 2 is procedure chart of the present utility model.
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 utility model, 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, also can eliminate the dry work for a long time of classic method later stage simultaneously at short notice, 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.
CN201320836001.0U 2013-12-18 2013-12-18 Natural gas conveying pipe system pressure test device Expired - Fee Related CN203732290U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320836001.0U CN203732290U (en) 2013-12-18 2013-12-18 Natural gas conveying pipe system pressure test device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320836001.0U CN203732290U (en) 2013-12-18 2013-12-18 Natural gas conveying pipe system pressure test device

Publications (1)

Publication Number Publication Date
CN203732290U true CN203732290U (en) 2014-07-23

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320836001.0U Expired - Fee Related CN203732290U (en) 2013-12-18 2013-12-18 Natural gas conveying pipe system pressure test device

Country Status (1)

Country Link
CN (1) CN203732290U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103743583A (en) * 2013-12-18 2014-04-23 南通太平洋海洋工程有限公司 Natural gas conveying pipe system pressure test device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103743583A (en) * 2013-12-18 2014-04-23 南通太平洋海洋工程有限公司 Natural gas conveying pipe system pressure test device
CN103743583B (en) * 2013-12-18 2016-08-17 南通太平洋海洋工程有限公司 A kind of gas delivering pipe system pressure experimental device

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Effective date of registration: 20160614

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Date of cancellation: 20161214

Granted publication date: 20140723

PP01 Preservation of patent right

Effective date of registration: 20170109

Granted publication date: 20140723

RINS Preservation of patent right or utility model and its discharge
PD01 Discharge of preservation of patent

Date of cancellation: 20170709

Granted publication date: 20140723

PD01 Discharge of preservation of patent
CP03 Change of name, title or address

Address after: No. 888, Hai Gong Avenue, Qidong, Jiangsu Province, Jiangsu

Patentee after: NANTONG CIMC PACIFIC OCEAN MARINE 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.

CP03 Change of name, title or address
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140723

Termination date: 20211218

CF01 Termination of patent right due to non-payment of annual fee