CN201779323U - Liquefied natural gas (LNG) dispenser release coupler - Google Patents
Liquefied natural gas (LNG) dispenser release coupler Download PDFInfo
- Publication number
- CN201779323U CN201779323U CN2010205437375U CN201020543737U CN201779323U CN 201779323 U CN201779323 U CN 201779323U CN 2010205437375 U CN2010205437375 U CN 2010205437375U CN 201020543737 U CN201020543737 U CN 201020543737U CN 201779323 U CN201779323 U CN 201779323U
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- valve body
- ring
- valve core
- upper valve
- guide
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Abstract
The utility model discloses a liquefied natural gas (LNG) dispenser release coupler, which comprises an upper valve and a lower valve. An upper valve core and a lower valve core are respectively mounted inside the upper valve and the lower valve; the lower end of the upper valve core is abutted to the upper end of the lower valve core; the upper valve and the lower valve are connected by a tensile bolt after being butted with each other; a tensile portion is arranged in the middle of the tensile bolt; and the diameter of the tensile portion is smaller than that of a rod portion of the tensile bolt. The liquefied natural gas (LNG) dispenser release coupler with simple and novel structure can adapt to tensile protection for work conditions with medium temperature higher than -162 DEG C and pressure lower than 2.4MPA, and the upper valve and the lower valve can be automatically released and simultaneously are respectively sealed to prevent leakage after certain tensile force is exerted between the upper valve and the lower valve. The liquefied natural gas LNG dispenser release coupler has the advantages of simple structure, small volume, easy maintenance and low cost.
Description
Technical field
The utility model relates to a kind of valve body, specifically, relates in particular to a kind of LNG filling machine Pull breaking ualve.
Background technique
In the prior art, for to environmental protection requirement, some gas stations or gas station transform, adopted device for recovering oil and gas, in oil gas tank car emptying or fueling operation process, carried out oil gas and reclaim, for example: during automobile fuel filler, utilize the special device of oiling bullet wound, to originally can give airborne oil gas by the automotive oil tank loss, and reclaim through nozzle or air filling gun and vacuum pump, this is undoubtedly a kind of progress.In further investigation to the safety of gas station or gas station and environment hidden danger, one comparatively distinct issues are the Securities that connect between oil and gas path pipeline and the automobile.Such situation is often arranged: do not brake when automobile enters gas station or gas station, perhaps add oil gas and finish as yet, when oiling air gun and sebific duct were still hung and also do not packed up onboard, the driver not to be noted just started automobile.Vehicle can be drawn sebific duct to sebific duct and disconnected this moment, perhaps the oiling mechanism of qi is forgotten about it, this will cause oil plant ejection when sebific duct fracture or oil gas machine fall down to pollute around being scattered in, if security incidents such as the unintended ignition this moment fire that will lead to oil-gas stations on fire, blast bring health, potential safety hazard, befouling environment and the wasting of resources for the staff and the peripheral resident that add oil-gas stations.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of novelty simple in structure, add LNG filling machine Pull breaking ualve safe and reliable in the oil gas process.
The technical solution of the utility model is as follows: the LNG filling machine Pull breaking ualve of design, comprise upper and lower valve body, in this upper and lower valve body, be separately installed with upper and lower spool, its main points are: described upper valve core lower end is against on the described lower valve core upper end, and described upper and lower valve body butt joint is after break the screw connection.
The utility model creatively designs at insecure factors such as traditional Pull breaking ualve are difficult for breaking, in the above structure, breaking screw distributed on the face upper edge week of upper and lower valve body butt joint, the utility model is connected in the middle of the connecting tube of oiling mechanism of qi, at this moment, the upper valve core lower end is against on the described lower valve core upper end, upper valve core does not seal the passage of upper valve body, lower valve core does not have to descend the passage sealing of valve body, thereby makes upper valve body and following valve body communicate, thereby realizes adding oil gas; After adding oil gas and finishing, when the automobile that adds oil gas refuels air gun when just starting also not taking off, under the effect of automobile pulling force, break screw and broken, upper valve body and following valve body separate, at this moment, upper valve core is with the passage sealing of upper valve body, thereby make oil gas can not leak out, lower valve core will descend the passage sealing of valve body, thereby make the oil gas that adds in the automotive oil gas tank can not leak.
Be provided with the portion of breaking at the described screw middle part of breaking; this diameter of breaking portion is less than the described diameter of breaking screw rod portion; above structure can make that breaking screw has under the prerequisite of certain intensity; can not need very to strength just break, thereby can be good at protecting the whole device that adds oil gas to be unlikely to be damaged.
In described upper valve body, be fixed with back-up ring, on this, be fixed with the axis of guide on the back-up ring, have pilot hole on the described upper valve core, described going up in the pilot hole stretched in the described axis of guide bottom of going up, cover is loaded onto pressure spring on the axis of guide on described, should go up the pressure spring upper end and be against described going up on the back-up ring, the lower end is against on the described upper valve core; In described valve body down, be fixed with back-up ring down, on this time back-up ring, be fixed with the axis of guide down, following pilot hole is arranged at described lower valve core bottom, described axis of guide top is down stretched in the described pilot hole down, suit lower compression spring on the described axis of guide down, this lower compression spring upper end is against on the described valve body down, and the lower end is against on the described back-up ring down.Adopt above structure, broken breaking screw, upper valve body is with in following valve body separates, upper valve core is upwards valve body lower portion motion under the effect of last pressure spring, up to of the passage sealing of this upper valve core with upper valve body, upper valve core can not produced in the movement process depart from upper valve body and go up the axis of guide, thereby well realize sealing, avoid the leakage of oil gas the upper valve body passage; Simultaneously, lower valve core is valve body top motion downwards under the effect of lower compression spring, to descend the passage sealing of valve body up to this lower valve core, depart from and descend the axis of guide that lower valve core can not produced in the movement process in following valve body, thereby well realize the oil and gas leakage in the automotive oil gas tank is avoided in the sealing of valve channel down.
Described upper valve core is consistent with the lower valve core structure, this upper valve core and lower valve core are by round platform portion and be shaped in the conus portion of this round platform portion bottom and the cylindrical body composition that one is connected the described conus portion vertex of a cone, the seal groove that round platform portion bottom outside the conus portion bottom of described upper valve core and lower valve core all has annular all is equipped with first seal ring in described two seal grooves.In the above structure, when upper valve body and the butt joint of following valve body, the cylindrical body end of upper valve core and lower valve core is against together mutually, make upper valve core move to upper valve body top, make the bottom of round platform portion of upper valve core break away from the ring-shaped step that is provided with in the upper valve body lower passage, thereby realize the perforation of upper valve body passage, and when upper valve body separates with following valve body, make the bottom of round platform portion of upper valve core be against on the ring-shaped step that is provided with in the upper valve body lower passage, because the existence of first seal ring, upper valve body passage airtight more reliable; In like manner, when upper valve body and the butt joint of following valve body, the cylindrical body end of upper valve core and lower valve core is against together mutually, make the downward valve body lower portion of lower valve core move, make the bottom of round platform portion of lower valve core break away from the ring-shaped step that is provided with in the valve body upper channel down, thereby realize the perforation of valve channel down, and when upper valve body separates with following valve body, make the bottom of round platform portion of lower valve core be against down on the ring-shaped step that is provided with in the valve body upper channel, because the existence of first seal ring, following valve channel airtight more reliable.
More reliable for the installation that makes back-up ring and following back-up ring, on described upper valve body inwall, have hoop back-up ring mounting groove, described on back-up ring be stuck on this in hoop back-up ring mounting groove; Have hoop back-up ring mounting groove down on described valve interior wall down, described back-up ring down is stuck in this time hoop back-up ring mounting groove.
In order to make the utility model can be good at linking to each other with the pipeline in the external world, machining internal thread on described upper valve body upper inside wall, machining internal thread on described valve body upper inside wall down.
At described upper valve body and following valve body joint second seal ring and the 3rd seal ring are housed, wherein said second seal ring is installed on the lower end surface of described upper valve body, and described the 3rd seal ring is installed on the upper-end surface of described valve body down.Above structure can upper valve body and following valve body between well sealed, thereby avoid the joint leakage of oil gas from upper valve body and following valve body, avoid the generation of polluting and wasting.
The beneficial effects of the utility model are: the utility model novelty simple in structure, can adapt to medium temperature more than-162 ℃, the operating conditions of pressure below 2.4MPa break protection, be subjected between upper and lower valve body under certain tension, valve body can be thrown off automatically up and down, each selfsealing simultaneously prevent to leak; It has simple in structure, volume is little, be easy to safeguard, advantage that cost is low.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
LNG filling machine Pull breaking ualve as shown in Figure 1, comprise, following valve body 1,2, on this, following valve body 1, be separately installed with in 2, lower valve core 3,4, described upper valve core 3 lower ends are against on described lower valve core 4 upper ends, on described, following valve body 1,2 butt joints are after break screw 5 connections, be provided with and break the 5a of portion at described screw 5 middle parts of breaking, this diameter of breaking the 5a of portion is less than the described diameter of breaking screw 5 bar portions, at described upper valve body 1 and following valve body 2 joints second seal ring 14 and the 3rd seal ring 15 are housed, wherein said second seal ring 14 is installed on the lower end surface of described upper valve body 1, described the 3rd seal ring 15 is installed on the upper-end surface of described valve body 2 down, on described upper valve body 1 inwall, have hoop back-up ring mounting groove 1a, on this, be connected with back-up ring 6 in the hoop back-up ring mounting groove 1a, be fixed with the axis of guide 7 on the back-up ring 6 on described, have pilot hole 3a on the described upper valve core 3, the described axis of guide 7 bottoms of going up are stretched among the described pilot hole 3a of going up, cover is loaded onto pressure spring 8 on the axis of guide 7 on described, should go up pressure spring 8 upper ends and be against described going up on the back-up ring 6, the lower end is against on the described upper valve core 3; On described valve body 2 inwalls down, have hoop back-up ring mounting groove 2a down, in this time hoop back-up ring mounting groove 2a, be connected with back-up ring 9 down, on described back-up ring 9 down, be fixed with the axis of guide 10 down, following pilot hole 4a is arranged at described lower valve core 4 bottoms, the described axis of guide 10 tops are down stretched among the described pilot hole 4a down, suit lower compression spring 11 on the described axis of guide 10 down, these lower compression spring 11 upper ends are against on the described valve body 2 down, and the lower end is against on the described back-up ring 9 down.
It can also be seen that in Fig. 1: described upper valve core 3 is consistent with lower valve core 4 structures, this upper valve core 3 and lower valve core 4 are by round platform portion and be shaped in the conus portion of this round platform portion bottom and the cylindrical body composition that one is connected the described conus portion vertex of a cone, the seal groove 12 that round platform portion bottom outside the conus portion bottom of described upper valve core 3 and lower valve core 4 all has annular all is equipped with first seal ring 13 in described two seal grooves 12; Machining internal thread on described upper valve body 1 upper inside wall, machining internal thread on described valve body 2 upper inside wall down.
More than the material of first seal ring 13, second seal ring 14 and the 3rd seal ring 15 all be that PTFE is a teflon, it has the characteristic of high-low temperature resistant.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (7)
1. LNG filling machine Pull breaking ualve, comprise upper and lower valve body (1,2), in this upper and lower valve body (1,2), be separately installed with upper and lower spool (3,4), it is characterized in that: described upper valve core (3) lower end is against on described lower valve core (4) upper end, and described upper and lower valve body (1,2) butt joint is after break screw (5) connection.
2. LNG filling machine Pull breaking ualve according to claim 1 is characterized in that: be provided with the portion of breaking (5a) at described screw (5) middle part of breaking, this diameter of breaking portion (5a) is less than the described diameter of breaking screw (5) bar portion.
3. LNG filling machine Pull breaking ualve according to claim 1, it is characterized in that: in described upper valve body (1), be fixed with back-up ring (6), be fixed with the axis of guide (7) on back-up ring on this (6), have pilot hole (3a) on the described upper valve core (3), described going up in the pilot hole (3a) stretched in the described axis of guide (7) bottom of going up, the axis of guide (7) is gone up cover and is loaded onto pressure spring (8) on described, should go up pressure spring (8) upper end and be against described going up on the back-up ring (6), the lower end is against on the described upper valve core (3); In described valve body (2) down, be fixed with back-up ring (9) down, on this time back-up ring (9), be fixed with the axis of guide (10) down, following pilot hole (4a) is arranged at described lower valve core (4) bottom, the described axis of guide (10) top is down stretched in the described pilot hole (4a) down, go up suit lower compression spring (11) at the described axis of guide (10) down, this lower compression spring (11) upper end is against on the described valve body (2) down, and the lower end is against on the described back-up ring (9) down.
4. LNG filling machine Pull breaking ualve according to claim 3, it is characterized in that: described upper valve core (3) is consistent with lower valve core (4) structure, this upper valve core (3) and lower valve core (4) are by round platform portion and be shaped in the conus portion of this round platform portion bottom and the cylindrical body composition that one is connected the described conus portion vertex of a cone, the seal groove (12) that round platform portion bottom outside the conus portion bottom of described upper valve core (3) and lower valve core (4) all has annular all is equipped with first seal ring (13) in described two seal grooves (12).
5. LNG filling machine Pull breaking ualve according to claim 3 is characterized in that: have hoop back-up ring mounting groove (1a) on described upper valve body (1) inwall, the described back-up ring (6) of going up is stuck on this in hoop back-up ring mounting groove (1a); Have hoop back-up ring mounting groove (2a) down on described valve body (2) inwall down, described back-up ring (9) down is stuck in this time hoop back-up ring mounting groove (2a).
6. according to claim 1 or 3 or 4 or 5 described LNG filling machine Pull breaking ualves, it is characterized in that: machining internal thread on described upper valve body (1) upper inside wall, machining internal thread on described valve body (2) upper inside wall down.
7. according to claim 1 or 3 or 4 or 5 described LNG filling machine Pull breaking ualves, it is characterized in that: second seal ring (14) and the 3rd seal ring (15) are housed at described upper valve body (1) and following valve body (2) joint, wherein said second seal ring (14) is installed on the lower end surface of described upper valve body (1), and described the 3rd seal ring (15) is installed on the upper-end surface of described valve body (2) down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205437375U CN201779323U (en) | 2010-09-27 | 2010-09-27 | Liquefied natural gas (LNG) dispenser release coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205437375U CN201779323U (en) | 2010-09-27 | 2010-09-27 | Liquefied natural gas (LNG) dispenser release coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201779323U true CN201779323U (en) | 2011-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205437375U Expired - Lifetime CN201779323U (en) | 2010-09-27 | 2010-09-27 | Liquefied natural gas (LNG) dispenser release coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201779323U (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102207233A (en) * | 2011-04-11 | 2011-10-05 | 成都华气厚普燃气成套设备有限公司 | Pipeline protector of LNG (Liquefied Natural Gas) liquid filling machine |
| CN102425694A (en) * | 2011-12-20 | 2012-04-25 | 成都华气厚普机电设备股份有限公司 | Break-away valve |
| CN102660680A (en) * | 2012-04-27 | 2012-09-12 | 工信华鑫科技有限公司 | Porous distributing valve for continuous adsorption exchange equipment |
| CN103016804A (en) * | 2012-12-27 | 2013-04-03 | 武汉大禹阀门股份有限公司 | Shear type pipe explosion flow-limiting valve |
| CN103016808A (en) * | 2012-12-25 | 2013-04-03 | 成都华气厚普机电设备股份有限公司 | Liquefied natural gas (LNG) tank car emergency release valve |
| CN103615616A (en) * | 2013-11-29 | 2014-03-05 | 四川省简阳市川力机械制造有限责任公司 | Low-temperature breakaway valve |
| CN105179772A (en) * | 2015-10-21 | 2015-12-23 | 山东悦龙橡塑科技有限公司 | Breakaway coupler for hose |
| CN105221879A (en) * | 2015-10-21 | 2016-01-06 | 武汉三江航天远方科技有限公司 | Filling station rapid pipe joint peculiar to vessel |
| CN106352191A (en) * | 2016-09-23 | 2017-01-25 | 成都九十度工业产品设计有限公司 | Breaking device for buildings |
| CN106523753A (en) * | 2016-12-22 | 2017-03-22 | 盐城工学院 | Vertical-type pressure stabilization throttling valve and fluid conveying pipeline |
| CN106523754A (en) * | 2016-11-26 | 2017-03-22 | 江苏长隆石化装备有限公司 | Low-temperature emergency release coupler |
| CN106763964A (en) * | 2016-12-29 | 2017-05-31 | 重庆良工科技有限公司 | A kind of Pull breaking ualve |
| CN110319288A (en) * | 2019-07-03 | 2019-10-11 | 民勤县陇宇机械制造有限公司 | A kind of self-propelled anti-breaking device irrigated with agricultural machinery |
| CN116066569A (en) * | 2022-12-16 | 2023-05-05 | 张家港富瑞阀门有限公司 | Dry-stretch-break integrated valve, and use method and application thereof |
-
2010
- 2010-09-27 CN CN2010205437375U patent/CN201779323U/en not_active Expired - Lifetime
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102207233A (en) * | 2011-04-11 | 2011-10-05 | 成都华气厚普燃气成套设备有限公司 | Pipeline protector of LNG (Liquefied Natural Gas) liquid filling machine |
| CN102425694A (en) * | 2011-12-20 | 2012-04-25 | 成都华气厚普机电设备股份有限公司 | Break-away valve |
| CN102660680A (en) * | 2012-04-27 | 2012-09-12 | 工信华鑫科技有限公司 | Porous distributing valve for continuous adsorption exchange equipment |
| CN103016808A (en) * | 2012-12-25 | 2013-04-03 | 成都华气厚普机电设备股份有限公司 | Liquefied natural gas (LNG) tank car emergency release valve |
| CN103016804A (en) * | 2012-12-27 | 2013-04-03 | 武汉大禹阀门股份有限公司 | Shear type pipe explosion flow-limiting valve |
| CN103016804B (en) * | 2012-12-27 | 2014-05-21 | 武汉大禹阀门股份有限公司 | Shear type pipe explosion flow-limiting valve |
| CN103615616A (en) * | 2013-11-29 | 2014-03-05 | 四川省简阳市川力机械制造有限责任公司 | Low-temperature breakaway valve |
| CN105221879A (en) * | 2015-10-21 | 2016-01-06 | 武汉三江航天远方科技有限公司 | Filling station rapid pipe joint peculiar to vessel |
| CN105179772A (en) * | 2015-10-21 | 2015-12-23 | 山东悦龙橡塑科技有限公司 | Breakaway coupler for hose |
| CN105221879B (en) * | 2015-10-21 | 2017-12-26 | 武汉三江航天远方科技有限公司 | Filling station snap joint peculiar to vessel |
| CN106352191A (en) * | 2016-09-23 | 2017-01-25 | 成都九十度工业产品设计有限公司 | Breaking device for buildings |
| CN106523754A (en) * | 2016-11-26 | 2017-03-22 | 江苏长隆石化装备有限公司 | Low-temperature emergency release coupler |
| CN106523754B (en) * | 2016-11-26 | 2021-03-23 | 江苏长隆石化装备有限公司 | Low-temperature breaking valve |
| CN106523753A (en) * | 2016-12-22 | 2017-03-22 | 盐城工学院 | Vertical-type pressure stabilization throttling valve and fluid conveying pipeline |
| CN106763964A (en) * | 2016-12-29 | 2017-05-31 | 重庆良工科技有限公司 | A kind of Pull breaking ualve |
| CN106763964B (en) * | 2016-12-29 | 2019-01-15 | 重庆良工科技有限公司 | A kind of Pull breaking ualve |
| CN110319288A (en) * | 2019-07-03 | 2019-10-11 | 民勤县陇宇机械制造有限公司 | A kind of self-propelled anti-breaking device irrigated with agricultural machinery |
| CN116066569A (en) * | 2022-12-16 | 2023-05-05 | 张家港富瑞阀门有限公司 | Dry-stretch-break integrated valve, and use method and application thereof |
| CN116066569B (en) * | 2022-12-16 | 2024-04-19 | 张家港富瑞阀门有限公司 | Dry-stretch-break integrated valve, and use method and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHONGQING ENDURANCE ENERGY EQUIPMENT INTEGRATION C Free format text: FORMER NAME: CHONGQING SILIAN OIL + GAS EQUIPMENT MANUFACTURING CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 401121, No. 6, Willow Road, middle of Mount Huangshan Avenue, North New District, Chongqing, Yubei District Patentee after: Chongqing Endurance Industry Stock Co., Ltd. Address before: 401121, No. 6, Willow Road, middle of Mount Huangshan Avenue, North New District, Chongqing, Yubei District Patentee before: Chongqing Silian Oil & Gas Equipment Manufacturing Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110330 |