CN104806802A - Breaking valve for LNG (Liquefied Natural Gas) - Google Patents
Breaking valve for LNG (Liquefied Natural Gas) Download PDFInfo
- Publication number
- CN104806802A CN104806802A CN201510202255.0A CN201510202255A CN104806802A CN 104806802 A CN104806802 A CN 104806802A CN 201510202255 A CN201510202255 A CN 201510202255A CN 104806802 A CN104806802 A CN 104806802A
- Authority
- CN
- China
- Prior art keywords
- valve body
- cloudy
- positive
- spool
- steel ball
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a breaking valve for LNG (Liquefied Natural Gas). The breaking valve comprises a female valve body, a female valve core, a male valve body and a male valve core, wherein the female valve body is externally wrapped by a locking sleeve; the locking sleeve is internally provided with a buffer spring; the outer end of the locking sleeve is provided with a safety pin which is matched with the outer end part of the female valve body; a locking mechanism is arranged between the safety pin and the buffer spring; the locking mechanism comprises a circle of through hole which is formed in the female valve body, and a steel ball which is arranged in the through hole; the outer wall of the male valve body is provided with a locking groove which is matched with the steel ball; the inner wall of the locking valve is provided with a retaining groove which is matched with the steel ball; the female valve body and the male valve body are respectively provided with a vacuum cavity; each vacuum cavity is provided with a vacuumizing hole; a joint surface, which is greater or equal to a butting distance, is arranged at the positions of the inner end openings of the female valve body and the male valve body. According to the breaking valve for the LNG, the stability of the connection between the female valve body and the male valve body is guaranteed through the arrangement of the locking sleeve, the splicing operation is conveniently performed, and medium can also be prevented from being leaked; the breaking valve is doubly safe through the arrangement of the buffer spring; the male valve core and the female valve core, which are butted against each other, can be switched on or switched off according to use conditions, and the connection is stable.
Description
Technical field
The present invention relates to a kind of liquefied natural gas facility, particularly a kind of LNG Pull breaking ualve.
Background technique
Pull breaking ualve, as a kind of emergency separating device, is mainly used in ship to shore unloading, and the groove of highway, railway is canned to be unloaded and other are fixed and mobile fluid reservoir, such as oil filling riser, connection between fluid delivery arm and transport agent.
Existing Pull breaking ualve all adopts Broken bolt structure processed, this structure must remain the stressed even of Pull breaking ualve, accidentally cause the accident because being separated with regard to easy, safety installation are made to become potential safety hazard so on the contrary, simultaneously, existing Pull breaking ualve is from first Broken bolt fracture processed to departing from completely, all there is the situation of leaking medium in whole process, and existing Pull breaking ualve all must remove Pull breaking ualve after pulling from oil filling riser, recycle special bench vice to reset, reset well and carefully reinstall oil filling riser vertical tube place again, labor intensity is large, working time is long, waste time and energy.
Summary of the invention
Technical problem to be solved by this invention is for the deficiencies in the prior art, provides a kind of reasonable in design, easy to use, improves the LNG Pull breaking ualve of Security.
Technical problem to be solved by this invention is realized by following technological scheme, the present invention is a kind of LNG Pull breaking ualve, in the middle part of the nanubrium being located at oil filling riser, comprise the cloudy valve connected with the swivel joint of nanubrium and the positive valve connected with the interface of nanubrium, described cloudy valve is provided with cloudy valve body and cloudy spool, described positive valve be provided with the positive valve body of cloudy valve body grafting and with cloudy spool to the positive spool pushed up, between cloudy valve body and cloudy spool, flow channels is equipped with between sun valve body and positive spool, cloudy spool guide sleeve is provided with in the relative cloudy valve body in top, positive spool guide sleeve is provided with in the relative positive valve body in top, between cloudy spool guide sleeve and cloudy spool, being equipped with when breaking between sun spool guide sleeve and positive spool drives cloudy spool and positive spool to close the top-pushing mechanism of flow channels, be characterized in, the locking cover matched with site foundation is set with outside described cloudy valve body, locking cover is connected with site foundation by wire rope and loop chain, the damping spring be sleeved on cloudy valve body is provided with in locking cover, the outer end of locking cover is provided with the safety pin coordinated with cloudy valve body outer end, lockable mechanism is provided with between safety pin and damping spring, described lockable mechanism comprises the ring through hole be located on cloudy valve body and the steel ball be located in through hole, the outer wall of sun valve body is provided with the lock groove coordinated with steel ball, the inwall of locking cover is provided with moving back of coordinating with steel ball and stops groove, described cloudy valve body and positive valve body are equipped with vacuum chamber, vacuum chamber be provided with arrange outwardly vacuumize hole, the inner port place of cloudy valve body and positive valve body be provided be more than or equal to apex distance from junction plane,
During oil filling riser work, sun valve body promotes cloudy valve body and moves backward in locking cover, steel ball on cloudy valve body arrive locking cover move back only groove place time, fall into and move back only groove, sun valve body continues the cloudy valve body of pushing tow, treat that the lock groove of positive valve body arrives steel ball place, lock groove, steel ball stops groove on one wire with moving back, damping spring is compressed, after lock groove fallen into by steel ball, by positive valve body toward pulling back, the steel ball in lock groove is driven to retreat together, under the extruding of locking cover, steel ball and positive valve body compress, realize the grafting of positive valve body and cloudy valve body, cloudy spool and positive spool are to top, flow channels is communicated with, realize the transmission of medium,
After having worked, first break safety pin, then gone out from cloudy valve body lira by positive valve body, under the effect of top-pushing mechanism, positive valve and cloudy valve are closed gradually, and after closing completely, junction plane top being located to positive valve body and cloudy valve body starts to depart from, until break completely.
Technical problem to be solved by this invention can also be realized further by following technological scheme, and the outer wall of described positive valve body from lock groove to the inner is provided with the continuous three seals device coordinated with cloudy valve interior wall.
Technical problem to be solved by this invention can also be realized further by following technological scheme, and described top-pushing mechanism is goring push spring.
The present invention, by establishing locking cover, ensures the stability that cloudy valve body is connected with positive valve body to facilitate grafting, also can avoid revealing medium; If damping spring, make valve remain at same relatively-stationary position with locking cover, the vibrations that all directions are transmitted and accidental shock all can be buffered spring and absorb or cushion, and make Pull breaking ualve double safety; If lockable mechanism, cloudy valve is combined closely with positive valve, and convenient installation; If vacuum chamber, avoid heat trnasfer, protection Sealing; If positive valve body and cloudy valve body, be connected by the mode of grafting, can bear shearing, torsion, all multi-form active forces such as bending, any accident all cannot make this valve accidental separation, easy for installation, reduces installation requirement; If to positive spool and the cloudy spool on top, make the flow channels in valve body can carry out break-make according to service condition.Compared with prior art, it is reasonable in design, easy accessibility, good seal, improves and breaks efficiency, ensures to break effect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Referring to accompanying drawing, further describe concrete technological scheme of the present invention, so that those skilled in the art understands the present invention further, and do not form the restriction to its right.
With reference to Fig. 1, a kind of LNG Pull breaking ualve, in the middle part of the nanubrium being located at oil filling riser, comprise the cloudy valve connected with the swivel joint of nanubrium and the positive valve connected with the interface of nanubrium, described cloudy valve is provided with cloudy valve body 10 and cloudy spool 11, described positive valve be provided with the positive valve body 1 of cloudy valve body 10 grafting and with cloudy spool 11 to the positive spool 2 pushed up, between cloudy valve body 10 and cloudy spool 11, flow channels is equipped with between sun valve body 1 and positive spool 2, cloudy spool guide sleeve 12 is provided with in the relative cloudy valve body 10 in top, positive spool guide sleeve 15 is provided with in the relative positive valve body 1 in top, between cloudy spool guide sleeve 12 and cloudy spool 10, being equipped with when breaking between sun spool guide sleeve 15 and positive spool 2 drives cloudy spool 11 and positive spool 2 to close the top-pushing mechanism 13 of flow channels, outside described cloudy valve body 10, be set with the locking matched with site foundation overlap 4, locking cover 4 is connected with site foundation by wire rope and loop chain, the damping spring 7 be sleeved on cloudy valve body 10 is provided with in locking cover 4, the outer end of locking cover 4 is provided with the safety pin 3 coordinated with cloudy valve body 10 outer end, lockable mechanism is provided with between safety pin 3 and damping spring 7, described lockable mechanism comprises the ring through hole be located on cloudy valve body 10 and the steel ball 5 be located in through hole, the outer wall of sun valve body 1 is provided with the lock groove 16 coordinated with steel ball 5, the inwall of locking cover 4 is provided with moving back of coordinating with steel ball 5 and stops groove 6, described cloudy valve body 10 with positive valve body 1 are equipped with vacuum chamber 8, vacuum chamber 8 be provided with arrange outwardly vacuumize hole 9, cloudy valve body 10 and the inner port place of positive valve body 1 be provided be more than or equal to apex distance from junction plane 14, valve is closed rear junction plane completely and is just started to depart from, detach procedure medium is lost few,
During oil filling riser work, sun valve body 1 promotes cloudy valve body 10 and moves backward in locking cover 4, steel ball 5 on cloudy valve body 10 arrive locking cover 4 move back only groove 6 place time, fall into and move back only groove 6, sun valve body 1 continues the cloudy valve body 10 of pushing tow, treat that the lock groove 16 of positive valve body 1 arrives steel ball place, lock groove 16, steel ball 5 stops groove 6 on one wire with moving back, damping spring 7 is compressed, after lock groove 16 fallen into by steel ball 5, by positive valve body 1 toward pulling back, the steel ball 5 in lock groove 16 is driven to retreat together, under the extruding of locking cover 4, steel ball 5 and positive valve body 1 compress, realize the grafting of positive valve body 1 and cloudy valve body 10, cloudy spool 11 and positive spool 2 are to top, flow channels is communicated with, realize the transmission of medium,
After having worked, first break safety pin 3, more positive valve body 1 is gone out from cloudy valve body 10 lira, under the effect of top-pushing mechanism 13, positive valve and cloudy valve are closed, gradually after closing completely, locate positive valve body 1 to top to start to depart from, until break completely with the junction plane 14 of cloudy valve body 10.
Described positive valve body 10 is provided with the continuous three seals device 17 coordinated with cloudy valve body 10 inwall to the outer wall of the inner from lock groove 16, form reliable sealing, effectively prevent medium from leaking outside.
Described top-pushing mechanism 13 is goring push spring.
The reset ring that clamping locking cover 4 facilitates positive valve and cloudy valve grafting is provided with, convenient reset at described site foundation place.
Adopt double-layer vacuum pumping mode heat insulation, effectively prevent Pull breaking ualve from becoming medium thermal source, protect the sealing gasket of junction plane to be without prejudice simultaneously; In fact, after safety pin is severed, can't depart from, positive valve continues to be pulled away about 8mm and just starts to depart from action, and such design is safer at once.
Claims (3)
1. a LNG Pull breaking ualve, in the middle part of the nanubrium being located at oil filling riser, comprise the cloudy valve connected with the swivel joint of nanubrium and the positive valve connected with the interface of nanubrium, described cloudy valve is provided with cloudy valve body and cloudy spool, described positive valve be provided with the positive valve body of cloudy valve body grafting and with cloudy spool to the positive spool pushed up, between cloudy valve body and cloudy spool, flow channels is equipped with between sun valve body and positive spool, cloudy spool guide sleeve is provided with in the relative cloudy valve body in top, positive spool guide sleeve is provided with in the relative positive valve body in top, between cloudy spool guide sleeve and cloudy spool, being equipped with when breaking between sun spool guide sleeve and positive spool drives cloudy spool and positive spool to close the top-pushing mechanism of flow channels, it is characterized in that: outside described cloudy valve body, be set with the locking cover matched with site foundation, locking cover is connected with site foundation by wire rope and loop chain, the damping spring be sleeved on cloudy valve body is provided with in locking cover, the outer end of locking cover is provided with the safety pin coordinated with cloudy valve body outer end, lockable mechanism is provided with between safety pin and damping spring, described lockable mechanism comprises the ring through hole be located on cloudy valve body and the steel ball be located in through hole, the outer wall of sun valve body is provided with the lock groove coordinated with steel ball, the inwall of locking cover is provided with moving back of coordinating with steel ball and stops groove, described cloudy valve body and positive valve body are equipped with vacuum chamber, vacuum chamber be provided with arrange outwardly vacuumize hole, the inner port place of cloudy valve body and positive valve body be provided be more than or equal to apex distance from junction plane,
During oil filling riser work, sun valve body promotes cloudy valve body and moves backward in locking cover, steel ball on cloudy valve body arrive locking cover move back only groove place time, fall into and move back only groove, sun valve body continues the cloudy valve body of pushing tow, treat that the lock groove of positive valve body arrives steel ball place, lock groove, steel ball stops groove on one wire with moving back, damping spring is compressed, after lock groove fallen into by steel ball, by positive valve body toward pulling back, the steel ball in lock groove is driven to retreat together, under the extruding of locking cover, steel ball and positive valve body compress, realize the grafting of positive valve body and cloudy valve body, cloudy spool and positive spool are to top, flow channels is communicated with, realize the transmission of medium,
After having worked, first break safety pin, then gone out from cloudy valve body lira by positive valve body, under the effect of top-pushing mechanism, positive valve and cloudy valve are closed gradually, and after closing completely, junction plane top being located to positive valve body and cloudy valve body starts to depart from, until break completely.
2. LNG Pull breaking ualve according to claim 1, is characterized in that: the outer wall of described positive valve body from lock groove to the inner is provided with the continuous three seals device coordinated with cloudy valve interior wall.
3. LNG Pull breaking ualve according to claim 1, is characterized in that: described top-pushing mechanism is goring push spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510202255.0A CN104806802A (en) | 2015-04-27 | 2015-04-27 | Breaking valve for LNG (Liquefied Natural Gas) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510202255.0A CN104806802A (en) | 2015-04-27 | 2015-04-27 | Breaking valve for LNG (Liquefied Natural Gas) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104806802A true CN104806802A (en) | 2015-07-29 |
Family
ID=53691888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510202255.0A Pending CN104806802A (en) | 2015-04-27 | 2015-04-27 | Breaking valve for LNG (Liquefied Natural Gas) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104806802A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107487556A (en) * | 2017-08-28 | 2017-12-19 | 重庆洁邦电器有限公司 | A kind of plug type vacuum grain storage structure |
| CN111878655A (en) * | 2020-07-31 | 2020-11-03 | 国网河北省电力有限公司衡水供电分公司 | Gas communication joint and detection equipment |
| CN114576454A (en) * | 2022-03-09 | 2022-06-03 | 扬州华光新材料股份有限公司 | Quick connector with valve |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2524031Y (en) * | 2001-12-21 | 2002-12-04 | 方惠良 | Safety valve |
| WO2004011842A1 (en) * | 2002-07-27 | 2004-02-05 | Jwl Maskin-Og Plastfabrik A/S | Rapid coupling device and method for assembling a coupling socket |
| CN2918903Y (en) * | 2005-07-01 | 2007-07-04 | 西安新竹防灾救生设备有限公司 | Trigger auxiliary valve |
| CN201228802Y (en) * | 2008-04-06 | 2009-04-29 | 北京特种工程设计研究院 | Low-temperature vacuum multilayer thermal insulation adjusting valve |
| CN203215165U (en) * | 2013-04-15 | 2013-09-25 | 江西艾克实业有限公司 | Push-pull-type quick connector |
| CN203477530U (en) * | 2013-09-28 | 2014-03-12 | 永嘉县金鼎泰铸造有限公司 | Valve body of heat preservation butterfly valve |
| CN203770789U (en) * | 2014-04-03 | 2014-08-13 | 浙江方众阀门有限公司 | Break away coupling valve |
| CN203784631U (en) * | 2014-01-27 | 2014-08-20 | 江苏海企港华燃气发展有限公司 | LNG (Liquefied Natural Gas) loading/unloading device of overwater natural gas filling station |
| CN204592469U (en) * | 2015-04-27 | 2015-08-26 | 连云港远洋流体装卸设备有限公司 | A kind of LNG Pull breaking ualve |
-
2015
- 2015-04-27 CN CN201510202255.0A patent/CN104806802A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2524031Y (en) * | 2001-12-21 | 2002-12-04 | 方惠良 | Safety valve |
| WO2004011842A1 (en) * | 2002-07-27 | 2004-02-05 | Jwl Maskin-Og Plastfabrik A/S | Rapid coupling device and method for assembling a coupling socket |
| CN2918903Y (en) * | 2005-07-01 | 2007-07-04 | 西安新竹防灾救生设备有限公司 | Trigger auxiliary valve |
| CN201228802Y (en) * | 2008-04-06 | 2009-04-29 | 北京特种工程设计研究院 | Low-temperature vacuum multilayer thermal insulation adjusting valve |
| CN203215165U (en) * | 2013-04-15 | 2013-09-25 | 江西艾克实业有限公司 | Push-pull-type quick connector |
| CN203477530U (en) * | 2013-09-28 | 2014-03-12 | 永嘉县金鼎泰铸造有限公司 | Valve body of heat preservation butterfly valve |
| CN203784631U (en) * | 2014-01-27 | 2014-08-20 | 江苏海企港华燃气发展有限公司 | LNG (Liquefied Natural Gas) loading/unloading device of overwater natural gas filling station |
| CN203770789U (en) * | 2014-04-03 | 2014-08-13 | 浙江方众阀门有限公司 | Break away coupling valve |
| CN204592469U (en) * | 2015-04-27 | 2015-08-26 | 连云港远洋流体装卸设备有限公司 | A kind of LNG Pull breaking ualve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107487556A (en) * | 2017-08-28 | 2017-12-19 | 重庆洁邦电器有限公司 | A kind of plug type vacuum grain storage structure |
| CN111878655A (en) * | 2020-07-31 | 2020-11-03 | 国网河北省电力有限公司衡水供电分公司 | Gas communication joint and detection equipment |
| CN114576454A (en) * | 2022-03-09 | 2022-06-03 | 扬州华光新材料股份有限公司 | Quick connector with valve |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150729 |