CN103216680B - Seal joint of lead wire in liquefied natural gas (LNG) container - Google Patents
Seal joint of lead wire in liquefied natural gas (LNG) container Download PDFInfo
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- CN103216680B CN103216680B CN201310142760.1A CN201310142760A CN103216680B CN 103216680 B CN103216680 B CN 103216680B CN 201310142760 A CN201310142760 A CN 201310142760A CN 103216680 B CN103216680 B CN 103216680B
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Abstract
The invention discloses a seal joint of a lead wire in a liquefied natural gas (LNG) container. The seal joint of the lead wire in the LNG container comprises an LNG container distributing head, a taper joint, a first taper sealing body manufactured by Teflon and a pressing sleeve made of the Teflon. One end of the taper joint is arranged on the LNG container distributing head in a sealing mode, a first taper groove is formed in the other end of the taper joint, the taper part of the first taper sealing body abuts against the first taper groove, the pressing sleeve is used as an outer connector to be sleeved outside the taper joint and is in threaded connection with the taper joint, and the pressing sleeve can press the first taper sealing body in the first taper groove tightly. Wire holes of the first taper sealing body are contracted under the compression of the pressing sleeve to enable the wire holes to hoop wires tightly and enable the wire holes are sealed with the wires, and liquid inside the LNG container is prevented from leaking outside. After the pressing sleeve used as the outer connector is removed, the first taper sealing body is exposed outside, then assembling and disassembling can be conducted conveniently and examining and repairing efficiency is greatly improved.
Description
Technical field
The present invention relates to a kind of SEALING FITTING, be specifically related to the SEALING FITTING of drawing wire in LNG container.
Background technique
Usually sensor is provided with in LNG container, the parameters such as liquid level, pressure and the temperature of LNG Liquefied natural gas in LNG container (being called for short LNG) are stored in order to detection, the wire be connected with sensor has to pass through LNG shell and is connected with external equipment, therefore need to seal, in order to prevent the leakage of cryogenic liquide in LNG container the wire through LNG shell.
At present, the structure of the SEALING FITTING of wire is drawn as shown in fig. 1 in LNG container, comprise LNG container allocation 1, pressed joint 2, taper joint seat 3, first cone seal body 4, second cone seal body 5, SEALING FITTING seat 6 and clamping cap 7, first cone seal body 4 and the second cone seal body 5 are made up of teflon, SEALING FITTING seat 6 thread seal is connected in LNG container allocation 1, SEALING FITTING seat 6 is threaded with taper joint seat 3, taper joint seat 3 is threaded with pressed joint 2, taper joint seat 3 is provided with inner chamber, intracavity bottom is provided with conical socket, the conical section of the second cone seal body 5 can be resisted against in conical socket, the bottom plane of the first cone seal body 4 is resisted against on the bottom plane of the second cone seal body 5, the cone of the first cone seal body 4 is also provided with the clamping cap 7 of band cone tank, clamping cap 7, first cone seal body 4, second cone seal body 5 is all arranged in the inner chamber of taper joint seat 3, wire 8 is drawn from LNG container, successively through LNG container allocation 1, SEALING FITTING seat 6, second cone seal body 5, first cone seal body 4, clamping cap 7, eventually pass through pressed joint 2 to be drawn, by screwing pressed joint 2, can successively to clamping cap 7, first cone seal body 4 and the second cone seal body 5 apply pressure, second cone seal body 5 is under the compressing of clamping cap 7, tightly be pressed in conical socket, make to be formed between the conical section of the second cone seal body 5 and conical socket to seal, the wire guide of the first cone seal body 4 and the second cone seal body 5 also can be shunk by pressing simultaneously, also and between wire 8 sealing is defined while wire 8 is tightly waled, prevent LNG liquid in containers to outward leakage, thus reach the object of sealing.The shortcoming of above-mentioned this structure is: because the first cone seal body 4 and the second cone seal body 5 are all arranged in the inner chamber of taper joint seat 3, and the wire guide of the first cone seal body and the second cone seal body 5 binds round on conductor 8 tightly because shrinking in using process, like this when needing maintenance first cone seal body 4 and the second cone seal body 5 because there is sealing problem, the maintenance issue of difficult dismounting will be produced, even if because after pressed joint 2 is pulled down, first cone seal body 4 and the second cone seal body 5 are still because lock ring resides in the inner chamber of taper joint seat 3 on wire, to dismantle taper joint seat 3 by force, then can cause wire 8 transfer and rupture, the difficulty of the service work of SEALING FITTING is increased greatly, time-consuming, overhaul efficiency is very low.
Summary of the invention
The object of this invention is to provide the SEALING FITTING of drawing wire in a kind of LNG container, this joint is convenient to installation and removal and can not be damaged extraction wire, greatly can improve overhaul efficiency.
To achieve these goals, the technical solution used in the present invention is: the SEALING FITTING of drawing wire in LNG container, comprise LNG container allocation head, taper joint, the first cone seal body that teflon is made, clamping sleeve, one end sealing of taper joint is arranged on LNG container allocation head, the other end of taper joint is provided with the first conical socket, the conical section of the first cone seal body is resisted against in the first conical socket, it is outer and be threaded with taper joint that clamping sleeve is sleeved on taper joint as socket, first cone seal body can tightly be pressed in the first conical socket by clamping sleeve, the wire of drawing from LNG container is successively through LNG container allocation head, taper joint, drawn after wire guide in first cone seal body and clamping sleeve.
Further, the SEALING FITTING of wire is drawn in aforesaid LNG container, wherein, anti-packing is set with in the outside of the first cone seal body, anti-packing can prevent the first cone seal body pasting on the internal thread of clamping sleeve by after compression swelling, makes the first cone seal body have better sealing effect to wire simultaneously.
Further, the SEALING FITTING of wire is drawn in aforesaid LNG container, wherein, also comprise the second cone seal body that a teflon is made, the bottom plane of the second cone seal body is resisted against on the bottom plane of the first cone seal body, the intracavity bottom of clamping sleeve is provided with the second conical socket, the cone that second conical socket is pressed on the second cone seal body applies pressure to the first cone seal body and the second cone seal body, wire successively through after the wire guide in the first cone seal body and the second cone seal body, then is drawn through after clamping sleeve.
Further, the SEALING FITTING of wire is drawn in aforesaid LNG container, wherein, anti-packing is set with in the outside of the first cone seal body and the second cone seal body, anti-packing can prevent the first cone seal body and the second cone seal body pasting on the internal thread of clamping sleeve by after compression swelling, makes the first cone seal body and the second cone seal body have better sealing effect to wire simultaneously.
The invention has the beneficial effects as follows: the first cone seal body is under the compressing of clamping sleeve, formed between the conical section of the first cone seal body and the first conical socket and seal, the wire guide of the first cone seal body can tightly shrink and wale wire simultaneously, make to form sealing between wire and wire guide, thus prevent liquid in LNG container to outward leakage, and one end that the wire the first conical socket being arranged on taper joint is drawn, after like this clamping sleeve being removed, the the first cone seal body be resisted against in the first conical socket is just outside exposed, just can installing/dismounting and replacement easily, installing/dismounting is more prone to compared with the existing cone seal body be built in taper joint seat inner chamber, substantially increase overhaul efficiency.
Accompanying drawing explanation
Fig. 1 is for drawing the structural representation of the SEALING FITTING of wire in the LNG container described in background technique.
Fig. 2 is the structural representation of the first embodiment drawing the SEALING FITTING of wire in LNG container of the present invention.
Fig. 3 is the structural representation of the second embodiment drawing the SEALING FITTING of wire in LNG container of the present invention.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, the SEALING FITTING of drawing wire in LNG container of the present invention is further described.
Embodiment one: as shown in Figure 2, the SEALING FITTING of wire is drawn in LNG container described in the present embodiment, comprise LNG container allocation 1, taper joint 2, the the first cone seal body 3 be made up of teflon, clamping sleeve 4, one end sealing of taper joint 2 is arranged in LNG container allocation 1, the other end of taper joint 2 is provided with the first conical socket, the conical section of the first cone seal body 3 is resisted against in the first conical socket, anti-packing 6 is set with in the outside of the first cone seal body 3, anti-packing 6 can prevent the first cone seal body 3 from pasting on the internal thread of clamping sleeve 4 by after compression swelling, make the first cone seal body 3 pairs of wires 5 have better sealing effect simultaneously, it is outer and be threaded with taper joint 2 that clamping sleeve 4 is sleeved on taper joint 2 as socket, first cone seal body is tightly pressed in the first conical socket by clamping sleeve 4, wire 5 is drawn from LNG container, successively through LNG container allocation 1, taper joint 2, drawn after wire guide in first cone seal body 3 and clamping sleeve 4, first cone seal body 3 is under the compressing of clamping sleeve 4, tightly be pressed in the first conical socket, make to be formed between the conical section of the first cone seal body 3 and the first conical socket to seal, simultaneously, the wire guide of the first cone seal body 3 also can be shunk by pressing, also and between wire 5 sealing is defined while wire 5 is tightly waled, thus prevent liquid in LNG container to outward leakage, and the first cone seal body 3 against conical socket be arranged on taper joint 2 wire draw one end, after like this clamping sleeve 4 being removed, the the first cone seal body 3 be resisted against in the first conical socket is just outside exposed, just can carry out installing/dismounting and replacement easily, installing/dismounting is more prone to compared with the existing cone seal body be built in taper joint seat inner chamber, substantially increase overhaul efficiency.
Embodiment two: as shown in Figure 3, the SEALING FITTING of wire is drawn in LNG container described in the present embodiment, comprise LNG container allocation 1, taper joint 2, the the first cone seal body 3 be made up of teflon, the the second cone seal body 6 be made up of teflon, anti-packing 7 and intracavity bottom are provided with the clamping sleeve 4 of the second conical socket, one end sealing of taper joint 2 is arranged in LNG container allocation 1, the other end of taper joint 2 is provided with the first conical socket, the conical section of the first cone seal body 3 is resisted against in the first conical socket, the bottom plane of the second cone seal body 6 is resisted against on the bottom plane of the first cone seal body 3, the conical section of the second cone seal body 6 is resisted against in the second conical socket of clamping sleeve 4, anti-packing 7 is set with in the outside of the first cone seal body 3 and the second cone seal body 6, it is outer and be threaded with taper joint 2 that clamping sleeve 4 is sleeved on taper joint 2 as socket, the wire 5 of drawing from LNG container is successively through LNG container allocation 1, taper joint 2, drawn after wire guide in first cone seal body 3 and the second cone seal body 6 and clamping sleeve 4, clamping sleeve 4 can apply pressure to the first cone seal body 3 and the second cone seal body 6 simultaneously, make the conical section of the first cone seal body 3 and the second cone seal body 6 respectively and formed between the first conical socket and the second conical socket and seal, the wire guide of the first cone seal body 3 and the second cone seal body 6 also can be shunk by pressing simultaneously, wire 5 is tightly waled simultaneously and also and between wire 5 is defined sealing by the wire guide of two taper dense body envelopes, prevent liquid in LNG container to outward leakage further, simultaneously the first cone seal body 3 against the first conical socket wire of being arranged on taper joint 2 one end of drawing, after like this clamping sleeve 4 being removed, be resisted against the first cone seal body 3 in the first conical socket and the second cone seal body 6 is just outside exposed, just can installing/dismounting and replacement easily, installing/dismounting is more prone to compared with the existing cone seal body be built in taper joint seat inner chamber, substantially increase overhaul efficiency, when as installed, anti-packing 7 can be set with in the outside of the first cone seal body 3 and the second cone seal body 6, anti-packing 7 can prevent the first cone seal body 3 and the compacted cover of the second cone seal body 64 from oppressing backward outer expansion, both sealability was guaranteed further, first cone seal body 3 and the second cone seal body 6 transfer when screwing off clamping sleeve 4 can be prevented again and cause wire fracture or insulator to destroy.
Claims (2)
- The SEALING FITTING of wire is drawn in 1.LNG container, comprise LNG container allocation head, it is characterized in that: also comprise taper joint, the first cone seal body, clamping sleeve that teflon is made, one end sealing of taper joint is arranged on LNG container allocation head, the other end of taper joint is provided with the first conical socket, and the outer surface of taper joint is also provided with a positive stop lug boss, the conical section of the first cone seal body is resisted against in the first conical socket, it is outer and be threaded with taper joint that clamping sleeve is sleeved on taper joint as socket, also comprise the second cone seal body that a teflon is made, the bottom plane of the second cone seal body is resisted against on the bottom plane of the first cone seal body, the intracavity bottom of clamping sleeve is provided with the second conical socket, second conical socket is pressed in the cone of the second cone seal body, and pressure is applied to the first cone seal body and the second cone seal body, the wire of drawing from LNG container is successively through LNG container allocation head, taper joint, after wire guide in first cone seal body and the second cone seal body, drawn through after clamping sleeve again.
- 2. in LNG container according to claim 1, draw the SEALING FITTING of wire, it is characterized in that: be set with anti-packing in the outside of the first cone seal body and the second cone seal body, anti-packing can prevent the first cone seal body and the second cone seal body pasting on the internal thread of clamping sleeve by after compression swelling, makes the first cone seal body and the second cone seal body have better sealing effect to wire simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310142760.1A CN103216680B (en) | 2013-04-24 | 2013-04-24 | Seal joint of lead wire in liquefied natural gas (LNG) container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310142760.1A CN103216680B (en) | 2013-04-24 | 2013-04-24 | Seal joint of lead wire in liquefied natural gas (LNG) container |
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| Publication Number | Publication Date |
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| CN103216680A CN103216680A (en) | 2013-07-24 |
| CN103216680B true CN103216680B (en) | 2015-05-20 |
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| CN201310142760.1A Active CN103216680B (en) | 2013-04-24 | 2013-04-24 | Seal joint of lead wire in liquefied natural gas (LNG) container |
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| CN104514927B (en) * | 2013-09-30 | 2017-08-08 | 中国核动力研究设计院 | A kind of quick detachable differential pressure measurement structure |
| CN103925423B (en) * | 2014-04-17 | 2016-03-02 | 苏州赛智达智能科技有限公司 | SEALING FITTING drawn by a kind of wire for low temperature |
| CN105241750B (en) * | 2015-11-24 | 2018-01-19 | 四川大学 | Pressurized head systems for indoor three axle hydraulic fracturings experiment |
| CN105655943A (en) * | 2015-12-29 | 2016-06-08 | 楚天科技股份有限公司 | Sealing joint for vacuum equipment, signal line wiring method and freeze drying box |
| CN105697493B (en) * | 2016-04-27 | 2018-10-19 | 中检西部检测有限公司 | Dislocation type crossover sub for being mounted on rod-type sensor on pressure vessel |
| CN105972327A (en) * | 2016-05-31 | 2016-09-28 | 安徽万瑞冷电科技有限公司 | Novel membrane separator sealing device |
| CN107492849A (en) * | 2017-08-28 | 2017-12-19 | 南阳市领驭机械有限公司 | The anti-structure that fractures of disc-type brake motor cable |
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|---|---|---|---|---|
| SU1735916A1 (en) * | 1989-12-25 | 1992-05-23 | Волжский филиал научно-производственного объединения "Энергия" | Hermetical lead-in for wires |
| CN1588727A (en) * | 2004-06-28 | 2005-03-02 | 中国科学院力学研究所 | Underwater conical extruding leading line sealing method |
| CN201521717U (en) * | 2009-07-28 | 2010-07-07 | 中冶南方工程技术有限公司 | Cable lead-in wire seal device under vacuum positive pressure and negative pressure |
| CN202176828U (en) * | 2011-08-05 | 2012-03-28 | 重庆银河试验仪器有限公司 | Seal threading device for low pressure test box |
| CN203258207U (en) * | 2013-04-24 | 2013-10-30 | 苏州赛智达智能科技有限公司 | Seal joint for leading out wire in LNG container |
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2013
- 2013-04-24 CN CN201310142760.1A patent/CN103216680B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1735916A1 (en) * | 1989-12-25 | 1992-05-23 | Волжский филиал научно-производственного объединения "Энергия" | Hermetical lead-in for wires |
| CN1588727A (en) * | 2004-06-28 | 2005-03-02 | 中国科学院力学研究所 | Underwater conical extruding leading line sealing method |
| CN201521717U (en) * | 2009-07-28 | 2010-07-07 | 中冶南方工程技术有限公司 | Cable lead-in wire seal device under vacuum positive pressure and negative pressure |
| CN202176828U (en) * | 2011-08-05 | 2012-03-28 | 重庆银河试验仪器有限公司 | Seal threading device for low pressure test box |
| CN203258207U (en) * | 2013-04-24 | 2013-10-30 | 苏州赛智达智能科技有限公司 | Seal joint for leading out wire in LNG container |
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| CN103216680A (en) | 2013-07-24 |
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