CN205175610U - Erection joint of LNG line pressure sensor - Google Patents

Erection joint of LNG line pressure sensor Download PDF

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Publication number
CN205175610U
CN205175610U CN201520876588.7U CN201520876588U CN205175610U CN 205175610 U CN205175610 U CN 205175610U CN 201520876588 U CN201520876588 U CN 201520876588U CN 205175610 U CN205175610 U CN 205175610U
Authority
CN
China
Prior art keywords
pressure sensor
lng
pressure transducer
pipeline
centre bore
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
CN201520876588.7U
Other languages
Chinese (zh)
Inventor
冉海平
刘全国
杜小祥
高猛
杨天强
石德勋
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.)
Chongqing Gas Compressor Factory Co Ltd
Original Assignee
Chongqing Gas Compressor Factory 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 Chongqing Gas Compressor Factory Co Ltd filed Critical Chongqing Gas Compressor Factory Co Ltd
Priority to CN201520876588.7U priority Critical patent/CN205175610U/en
Application granted granted Critical
Publication of CN205175610U publication Critical patent/CN205175610U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses an erection joint of LNG line pressure sensor, overhead division of pipeline transition has a centre bore, and the one end of this centre bore is opened there is the internal thread hole, and the entrance point of return bend inserts the other end of this centre bore to cross ferry welded fastening with the pipeline, the first end of pressure sensor installation is the path end, and the other end be big footpath end, and wherein the path end is the external screw thread end that is used for installing pressure sensor, the exit end welded fastening of its big footpath end and return bend, and the hole intercommunication of the overhead centre bore of this pressure sensor installation and return bend, and the centre bore axial lead that the ferry was crossed to the first axial lead of pressure sensor installation and pipeline is on same straight line. The utility model discloses can effectively prolong the pneumatolytic time of LNG medium to effectively improve the temperature of LNG medium, prevent freezing pressure sensor's isolation diaphragm, guarantee pressure sensor's normal work, so also need not need avoid freezing pressure sensor through the length that prolongs the straight tube like original, thereby be convenient for install pressure sensor.

Description

The erection joint of LNG line-pressure sensor
Technical field
The utility model belongs to LNG field, particularly relates to the erection joint of a kind of LNG line-pressure sensor.
Background technology
The erection joint of LNG line-pressure sensor is for detecting the pressure of LNG pipeline, it is general is at present arranged on pipeline by a straight tube, because LNG medium belongs to cryogenic media, its theoretical temperatures is-162 DEG C, the so just isolation diaphragm of easy freezing pressure sensor inside, thus the normal work of pressure transducer cannot be ensured.In order to prevent freezing pressure transducer, adopt spiral pipe can ensure the length of pipeline in relative small space, so just can accelerate the gasification of LNG, thus improve the temperature of LNG medium, thus avoid freezing pressure transducer, but this setup is not easy to again setting pressure sensor.
Utility model content
Technical problem to be solved in the utility model is to provide the erection joint of a kind of LNG line-pressure sensor, can avoid freezing pressure transducer, be convenient to again setting pressure sensor.
The technical solution of the utility model is as follows: the erection joint of a kind of LNG line-pressure sensor, it is characterized in that: comprise pipeline transition head (1) and pressure transducer mounting head (3), wherein pipeline transition head (1) has a center pit (1a), one end of this center pit has internal thread hole, the entrance point of bend pipe (2) inserts the other end of this center pit, and is welded and fixed with pipeline transition head (1); Described pressure transducer mounting head (3) one end is miner diameter end, the other end is bigger diameter end, wherein miner diameter end is the male end for setting pressure sensor, the endpiece of its bigger diameter end and described bend pipe (2) is welded and fixed, center pit in this pressure transducer mounting head is communicated with the endoporus of bend pipe (2), and center pit (1a) axial line of the axial line of pressure transducer mounting head (3) and described pipeline transition head (1) is on same straight line.
In technique scheme, pressure transducer is arranged on the miner diameter end of pressure transducer mounting head (3), and pipeline transition head (1) is arranged on LNG pipeline, so just by the utility model, pressure transducer is arranged on LNG pipeline, to detect the pressure of LNG pipeline.Because bend pipe (2) is longer than straight tube its straight length in identical space, so just effectively can extend the time of LNG medium gasification, thus effectively improve the temperature of LNG medium, prevent the isolation diaphragm of freezing pressure transducer, ensure the normal work of pressure transducer, so also need not as original, need the length by extending straight tube to avoid freezing pressure transducer, thus be convenient to setting pressure sensor.
Adopt above technical scheme, the utility model effectively can extend the time of LNG medium gasification, thus effectively improve the temperature of LNG medium, preventing the isolation diaphragm of freezing pressure transducer, ensure the normal work of pressure transducer, so also need not as original, needing the length by extending straight tube to avoid freezing pressure transducer, thus be convenient to setting pressure sensor, and the utility model structure is simple, easy to implement, overcome the defect of prior art well.
As preferably, described bend pipe (2) is spiral pipe or coiled pipe, so just can increase the straight length of bend pipe (2) in effective space, thus extends the time of LNG dielectric gas, and then prevents freezing pressure transducer better.
In order to ensure weld strength, prevent rosin joint, the two ends of bend pipe described in special envoy (2) adopt circumferential weld full weld respectively and between pipeline transition head (1) and pressure transducer mounting head (3).
Beneficial effect: the utility model effectively can extend the time of LNG medium gasification, thus effectively improve the temperature of LNG medium, prevent the isolation diaphragm of freezing pressure transducer, ensure the normal work of pressure transducer, so also need not as original, need the length by extending straight tube to avoid freezing pressure transducer, thus be convenient to setting pressure sensor, and the utility model structure be simple, easy to implement, overcome the defect of prior art well.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail:
As shown in Figure 1, the erection joint of a kind of LNG line-pressure sensor, is made up of pipeline transition head 1, bend pipe 2 and pressure transducer mounting head 3, and these three parts are metalwork.Wherein, pipeline transition head 1 has a center pit 1a, one end of this center pit has internal thread hole, and pipeline transition head 1 is arranged on LNG pipeline by this internal thread hole.The entrance point Inserting Tube of bend pipe 2 passes by the center pit 1a other end of ferry 1, and is welded and fixed with pipeline transition head 1.Circumferential weld full weld is adopted between the entrance point of bend pipe 2 and pipeline transition head 1.Bend pipe 2 is spiral pipe or coiled pipe, and the structure represented by the present embodiment is coiled pipe.
One end of pressure transducer mounting head 3 is miner diameter end, and the other end is bigger diameter end, and wherein miner diameter end is the male end for setting pressure sensor.The bigger diameter end of pressure transducer mounting head 3 and the endpiece of bend pipe 2 are welded and fixed, and adopt circumferential weld full weld between the endpiece of bend pipe 2 and pressure transducer mounting head 3.Center pit in pressure transducer mounting head 3 is communicated with the endoporus of bend pipe 2, and the center pit 1a axial line of the axial line of pressure transducer mounting head 3 and described pipeline transition head 1 is on same straight line.
The foregoing is only preferred embodiment of the present utility model; it is not restriction with the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.

Claims (3)

1. LNG line-pressure sensor erection joint, it is characterized in that: comprise pipeline transition head (1) and pressure transducer mounting head (3), wherein pipeline transition head (1) has a center pit (1a), one end of this center pit has internal thread hole, the entrance point of bend pipe (2) inserts the other end of this center pit, and is welded and fixed with pipeline transition head (1); Described pressure transducer mounting head (3) one end is miner diameter end, the other end is bigger diameter end, wherein miner diameter end is the male end for setting pressure sensor, the endpiece of its bigger diameter end and described bend pipe (2) is welded and fixed, center pit in this pressure transducer mounting head is communicated with the endoporus of bend pipe (2), and center pit (1a) axial line of the axial line of pressure transducer mounting head (3) and described pipeline transition head (1) is on same straight line.
2. LNG line-pressure sensor according to claim 1 erection joint, is characterized in that: described bend pipe (2) is spiral pipe or coiled pipe.
3. LNG line-pressure sensor according to claim 1 erection joint, is characterized in that: the two ends of described bend pipe (2) adopt circumferential weld full weld respectively and between pipeline transition head (1) and pressure transducer mounting head (3).
CN201520876588.7U 2015-11-05 2015-11-05 Erection joint of LNG line pressure sensor Expired - Fee Related CN205175610U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520876588.7U CN205175610U (en) 2015-11-05 2015-11-05 Erection joint of LNG line pressure sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520876588.7U CN205175610U (en) 2015-11-05 2015-11-05 Erection joint of LNG line pressure sensor

Publications (1)

Publication Number Publication Date
CN205175610U true CN205175610U (en) 2016-04-20

Family

ID=55739588

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520876588.7U Expired - Fee Related CN205175610U (en) 2015-11-05 2015-11-05 Erection joint of LNG line pressure sensor

Country Status (1)

Country Link
CN (1) CN205175610U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107560785A (en) * 2017-10-10 2018-01-09 广西玉柴机器股份有限公司 The overtemperature protection system of pressure sensor
CN108731873A (en) * 2017-10-26 2018-11-02 江苏核电有限公司 A kind of safety device for outlet of plunger pump pressure detecting

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107560785A (en) * 2017-10-10 2018-01-09 广西玉柴机器股份有限公司 The overtemperature protection system of pressure sensor
CN108731873A (en) * 2017-10-26 2018-11-02 江苏核电有限公司 A kind of safety device for outlet of plunger pump pressure detecting

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160420

Termination date: 20181105