CN103216680A - 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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- CN103216680A CN103216680A CN2013101427601A CN201310142760A CN103216680A CN 103216680 A CN103216680 A CN 103216680A CN 2013101427601 A CN2013101427601 A CN 2013101427601A CN 201310142760 A CN201310142760 A CN 201310142760A CN 103216680 A CN103216680 A CN 103216680A
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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 draw in the LNG container SEALING FITTING of lead.
Background technique
In the LNG container, be provided with sensor usually, be stored in the parameters such as liquid level, pressure and temperature of (being called for short LNG) of LNG Liquefied natural gas in the LNG container in order to detection, the lead that is connected with sensor must pass the LNG shell and be connected with external equipment, therefore need the lead that pass the LNG shell be sealed, in order to prevent the leakage of cryogenic liquide in the LNG container.
At present, draw in the LNG container lead SEALING FITTING structure as shown in fig. 1, comprise LNG container allocation 1, pressed joint 2, taper joint seat 3, the first cone seal body 4, the second cone seal body 5, SEALING FITTING seat 6 and clamping cap 7, the first cone seal body 4 and the second cone seal body 5 are made by teflon, SEALING FITTING seat 6 thread seals are connected on the 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 the 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, also is provided with the clamping cap 7 of band cone tank on the cone of the first cone seal body 4; Clamping cap 7, the first cone seal body 4, the second cone seal body 5 all is arranged in the inner chamber of taper joint seat 3, lead 8 is drawn from the LNG container, pass LNG container allocation 1 successively, SEALING FITTING seat 6, the second cone seal body 5, the first cone seal body 4, clamping cap 7, passing pressed joint 2 is at last drawn, by screwing pressed joint 2, can be successively to clamping cap 7, the first cone seal body 4 and the second cone seal body 5 are exerted pressure, the second cone seal body 5 is under the compressing of clamping cap 7, tightly be pressed in the conical socket, make and form sealing between the conical section of the second cone seal body 5 and the conical socket, the wire guide of the first cone seal body 4 and the second cone seal body 5 also can be shunk by pressure simultaneously, when tightly being waled, lead 8 also and between the lead 8 formed sealing, prevented that the LNG liquid in containers from outwards revealing, thereby reached the purpose of sealing.The shortcoming of above-mentioned this structure is: because the first cone seal body 4 and the second cone seal body 5 all are 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 lead 8 tightly because of shrinking in the using process, like this when when sealing problem occurring and need the maintenance first cone seal body 4 and the second cone seal body 5, will produce the maintenance issue of difficult dismounting, even because after pressed joint 2 pulled down, the first cone seal body 4 and the second cone seal body 5 still reside on lead in the inner chamber of taper joint seat 3 because of lock ring, if will dismantle taper joint seat 3 by force, then can cause lead 8 transfers and rupture, make the difficulty of service work of SEALING FITTING increase greatly, time-consuming, overhaul efficiency is very low.
Summary of the invention
The purpose of this invention is to provide the SEALING FITTING of drawing lead in a kind of LNG container, this joint is convenient to installation and removal and can not be damaged and draw lead, can improve overhaul efficiency greatly.
To achieve these goals, the technical solution used in the present invention is: the SEALING FITTING of drawing lead in the LNG container, comprise LNG container allocation head, taper joint, the first cone seal body that teflon is made, clamping sleeve, the one end sealing of taper joint is arranged on the LNG container allocation head, the other end of taper joint is provided with first conical socket, the conical section of the first cone seal body is resisted against in first conical socket, clamping sleeve is sleeved on outside the taper joint and with taper joint as socket and is threaded, clamping sleeve can tightly be pressed in the first cone seal body in first conical socket, and the lead of drawing from the LNG container passes LNG container allocation head successively, taper joint, drawn behind wire guide in the first cone seal body and the clamping sleeve.
Further, draw the SEALING FITTING of lead in the aforesaid LNG container, wherein, be set with anti-packing in the outside of the first cone seal body, anti-packing can prevent that the first cone seal body from pasting on the internal thread of clamping sleeve after being subjected to compression swelling, make the first cone seal body that lead is had better sealing effect simultaneously.
Further, draw the SEALING FITTING of lead in the 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 second conical socket, second conical socket is pressed on the cone of the second cone seal body and to the first cone seal body and the second cone seal body and exerts pressure, after lead passes wire guide in the first cone seal body and the second cone seal body successively, drawn after passing clamping sleeve again.
Further, draw the SEALING FITTING of lead in the aforesaid LNG container, wherein, the outside at the first cone seal body and the second cone seal body is set with anti-packing, anti-packing can prevent that the first cone seal body and the second cone seal body from pasting on the internal thread of clamping sleeve after being subjected to compression swelling, make the first cone seal body and the second cone seal body that lead is had better sealing effect simultaneously.
The invention has the beneficial effects as follows: the first cone seal body is under the compressing of clamping sleeve, form sealing between the conical section of the first cone seal body and first conical socket, the wire guide of the first cone seal body can tightly shrink and wale lead simultaneously, make and form sealing between lead and the wire guide, thereby prevented that the liquid in the LNG container from outwards revealing, and first conical socket is arranged on the end that the lead of taper joint is drawn, after like this clamping sleeve being removed, the first cone seal body that is resisted against in first conical socket is just exposed outside, just installing/dismounting and replacement easily, compare installing/dismounting with the existing cone seal body that is built in the taper joint seat inner chamber and be more prone to, improved overhaul efficiency greatly.
Description of drawings
Fig. 1 is for drawing the structural representation of the SEALING FITTING of lead in the LNG container described in the background technique.
Fig. 2 is first embodiment's of the SEALING FITTING of drawing lead in the LNG container of the present invention structural representation.
Fig. 3 is second embodiment's of the SEALING FITTING of drawing lead in the LNG container of the present invention structural representation.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment the SEALING FITTING of drawing lead in the LNG container of the present invention is further described.
Embodiment one: as shown in Figure 2, draw the SEALING FITTING of lead in the described LNG container of present embodiment, comprise LNG container allocation 1, taper joint 2, the first cone seal body of making by teflon 3, clamping sleeve 4, the sealing of one end of taper joint 2 is arranged on the LNG container allocation 1, the other end of taper joint 2 is provided with first conical socket, the conical section of the first cone seal body 3 is resisted against in first conical socket, be set with anti-packing 6 in the outside of the first cone seal body 3, anti-packing 6 can prevent that the first cone seal body 3 from pasting on the internal thread of clamping sleeve 4 after being subjected to compression swelling, make 3 pairs of leads 5 of the first cone seal body that better sealing effect is arranged simultaneously, clamping sleeve 4 is sleeved on outside the taper joint 2 and with taper joint 2 as socket and is threaded, and clamping sleeve 4 tightly is pressed in the first cone seal body in first conical socket; Lead 5 is drawn from the LNG container, pass LNG container allocation 1 successively, taper joint 2, wire guide in the first cone seal body 3 and clamping sleeve 4 backs are drawn, the first cone seal body 3 is under the compressing of clamping sleeve 4, tightly be pressed in first conical socket, make and form sealing between the conical section of the cone seal body 3 of winning and first conical socket, simultaneously, the wire guide of the first cone seal body 3 also can be shunk by pressure, when tightly being waled, lead 5 also and between the lead 5 formed sealing, thereby prevented that the liquid in the LNG container from outwards revealing, and the first cone seal body 3 against conical socket be arranged on the end that the lead of taper joint 2 is drawn, after like this clamping sleeve 4 being removed, the first cone seal body 3 that is resisted against in first conical socket is just exposed outside, just can carry out installing/dismounting and replacement easily, compare installing/dismounting with the existing cone seal body that is built in the taper joint seat inner chamber and be more prone to, improved overhaul efficiency greatly.
Embodiment two: as shown in Figure 3, draw the SEALING FITTING of lead in the described LNG container of present embodiment, comprise LNG container allocation 1, taper joint 2, the first cone seal body of making by teflon 3, the second cone seal body of making by teflon 6, anti-packing 7 and intracavity bottom are provided with the clamping sleeve 4 of second conical socket, the sealing of one end of taper joint 2 is arranged on the LNG container allocation 1, the other end of taper joint 2 is provided with first conical socket, the conical section of the first cone seal body 3 is resisted against in 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 second conical socket of clamping sleeve 4, be set with anti-packing 7 in the outside of the first cone seal body 3 and the second cone seal body 6, clamping sleeve 4 is sleeved on outside the taper joint 2 and with taper joint 2 as socket and is threaded, the lead 5 of drawing from the LNG container passes LNG container allocation 1 successively, taper joint 2, wire guide in the first cone seal body 3 and the second cone seal body 6 and clamping sleeve 4 backs are drawn, clamping sleeve 4 can be exerted pressure to the first cone seal body 3 and the second cone seal body 6 simultaneously, the conical section that makes the first cone seal body 3 and the second cone seal body 6 respectively and form sealing between first conical socket and second conical socket, the wire guide of the first cone seal body 3 and the second cone seal body 6 also can be shunk by pressure simultaneously, the wire guide of two taper dense bodies envelope simultaneously lead 5 is tightly waled and and lead 5 between formed sealing, prevented that further the liquid in the LNG container from outwards revealing; Simultaneously the first cone seal body 3 against first conical socket be arranged on the end that the lead of taper joint 2 is drawn, after like this clamping sleeve 4 being removed, the first cone seal body 3 and the second cone seal body 6 that are resisted against in first conical socket are just exposed outside, just installing/dismounting and replacement easily, comparing installing/dismounting with the existing cone seal body that is built in the taper joint seat inner chamber is more prone to, improved overhaul efficiency greatly, when as installed, can be set with anti-packing 7 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 6 compacted covers 4 outwards expansions of compressing back of the second cone seal body, both further guaranteed sealability, and can prevent the first cone seal body 3 and 6 transfers of the second cone seal body when screwing off clamping sleeve 4 again and cause wire fracture or insulator to destroy.
Claims (4)
1.LNG draw the SEALING FITTING of lead in the container, comprise LNG container allocation head, it is characterized in that: also comprise taper joint, the first cone seal body that teflon is made, clamping sleeve, the one end sealing of taper joint is arranged on the LNG container allocation head, the other end of taper joint is provided with first conical socket, the conical section of the first cone seal body is resisted against in first conical socket, clamping sleeve is sleeved on outside the taper joint and with taper joint as socket and is threaded, clamping sleeve can tightly be pressed in the first cone seal body in first conical socket, and the lead of drawing from the LNG container passes LNG container allocation head successively, taper joint, drawn behind wire guide in the first cone seal body and the clamping sleeve.
2. draw the SEALING FITTING of lead in the LNG container according to claim 1, it is characterized in that: be set with anti-packing in the outside of the first cone seal body, anti-packing can prevent that the first cone seal body from pasting on the internal thread of clamping sleeve after being subjected to compression swelling, make the first cone seal body that lead is had better sealing effect simultaneously.
3. draw the SEALING FITTING of lead in the LNG container according to claim 1, it is characterized in that: 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 second conical socket, second conical socket is pressed on the cone of the second cone seal body, and the first cone seal body and the second cone seal body exerted pressure, after lead passes wire guide in the first cone seal body and the second cone seal body successively, drawn after passing clamping sleeve again.
4. draw the SEALING FITTING of lead in the LNG container according to claim 3, it is characterized in that: the outside at the first cone seal body and the second cone seal body is set with anti-packing, anti-packing can prevent that the first cone seal body and the second cone seal body from pasting on the internal thread of clamping sleeve after being subjected to compression swelling, make the first cone seal body and the second cone seal body that lead is had better sealing effect 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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| CN103216680A true CN103216680A (en) | 2013-07-24 |
| CN103216680B 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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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925423A (en) * | 2014-04-17 | 2014-07-16 | 苏州赛智达智能科技有限公司 | Wire guide-out sealing joint for low temperature |
| CN104514927A (en) * | 2013-09-30 | 2015-04-15 | 中国核动力研究设计院 | Differential pressure measurement structure easy to detach |
| CN105241750A (en) * | 2015-11-24 | 2016-01-13 | 四川大学 | Pressing head system for indoor triaxial hydrofracture 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 |
| CN105697493A (en) * | 2016-04-27 | 2016-06-22 | 中国兵器装备集团摩托车检测技术研究所 | Staggered-type adapter used for mounting lever-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 |
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| SU1735916A1 (en) * | 1989-12-25 | 1992-05-23 | Волжский филиал научно-производственного объединения "Энергия" | Hermetical lead-in for wires |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104514927A (en) * | 2013-09-30 | 2015-04-15 | 中国核动力研究设计院 | Differential pressure measurement structure easy to detach |
| CN103925423A (en) * | 2014-04-17 | 2014-07-16 | 苏州赛智达智能科技有限公司 | Wire guide-out sealing joint for low temperature |
| 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 |
| CN105241750A (en) * | 2015-11-24 | 2016-01-13 | 四川大学 | Pressing head system for indoor triaxial hydrofracture 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 |
| CN105697493A (en) * | 2016-04-27 | 2016-06-22 | 中国兵器装备集团摩托车检测技术研究所 | Staggered-type adapter used for mounting lever-type sensor on pressure vessel |
| 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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| CN103216680B (en) | 2015-05-20 |
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