CN2828499Y - Pressure releasing device with easy fusing alloy plug - Google Patents
Pressure releasing device with easy fusing alloy plug Download PDFInfo
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- CN2828499Y CN2828499Y CN 200520041916 CN200520041916U CN2828499Y CN 2828499 Y CN2828499 Y CN 2828499Y CN 200520041916 CN200520041916 CN 200520041916 CN 200520041916 U CN200520041916 U CN 200520041916U CN 2828499 Y CN2828499 Y CN 2828499Y
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- pressure releasing
- low melting
- melting alloy
- releasing means
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Abstract
The utility model provides a pressure releasing device with an easy fusing alloy plug of a valve, which is used for compressing hydrogen gas or compressing natural gas. The utility model comprises a main body (1), a valve core (2), an easy fusing alloy block (3), and a filtration block (4), wherein the main body is provided with an airflow passage (1a) for discharging gas and a discharge passage (1b) for discharging fused easy fusing alloy, the valve core is slid in the main body for closing or opening the airflow passage, one end of the valve core corresponds to the discharge passage of the easy fusing alloy, the easy fusing alloy block is adjacent to one end of the valve core which corresponds to the discharge passage of the easy fusing alloy and the filtration block is positioned in the discharge passage and is adjacent to the easy fusing alloy block. In the utility model, the easy fusing alloy and a fuel gas passage are separated to make the fused easy fusing alloy flow out through the filtration block for realizing the release of fuel gas through the opening of the valve core. Consequently, the pressure releasing device with an easy fusing alloy plug is a pressure releasing device which is safe and reliable.
Description
Technical field
The utility model relates to a kind of pressure releasing means, specifically, relates to a kind of pressure releasing means that is used for the band low melting alloy plug of compression hydrogen or compressed natural gas usefulness valve.
Background technique
Popular in the market compression hydrogen and compressed natural gas valve, its safe release device have two kinds of pressure burst fragmentation formula and low melting alloy plug formulas.Usually require two kinds of devices all to possess.At present, low melting alloy plug popular on the market is for burying the formula of filling out, and promptly low melting alloy is directly inserted in the low melting alloy plug body, its structure as shown in Figure 3, label 20 expression low melting alloys wherein, label 30 expression bodies.The low melting alloy of this mode is plugged with the shortcoming of several respects as described below.
1) when ambient temperature during near the low melting alloy melting point (under the situation as high pressure aerating in summer), low melting alloy is with deliquescing, if the bottle internal air pressure is very high, then the low melting alloy of soft attitude will outwards fly out at a high speed, make the low melting alloy plug under situation about should not open and open, cause leakage, accidents caused.
2) existing burying filled out formula low melting alloy plug, surpass the low melting alloy melting point in ambient temperature, in low melting alloy fusing, the combustion gas releasing course, because pressurized gas discharge rapidly, cause temperature sharply to reduce, so Rong Hua low melting alloy can solidify again very soon, results in blockage, make the low melting alloy plug under this situation about opening and can not open fully, thus accidents caused.
3) even the low melting alloy plug can smooth opening, safe release, to the filling type structure, under the high pressure effect, because no filter block, low melting alloy will fly out as air rifle cartridge, have potential safety hazard.
Summary of the invention
The purpose of this utility model provides a kind of more safe and reliable pressure releasing means that is used for the band low melting alloy plug of compression hydrogen and compressed natural gas usefulness valve.
For achieving the above object, the utility model provides a kind of pressure releasing means that is used for the band low melting alloy plug of compression hydrogen or compressed natural gas usefulness valve, comprise: body, this body have the air-flow path of supplied gas discharge and the discharge route of discharging for the low melting alloy of fusing; Spool, this spool slide in described body to close or to open described air-flow path, and an end of this spool is facing to described low melting alloy discharge route; Low melting alloy piece, this low melting alloy piece are adjacent to that end facing to described low melting alloy discharge route of described spool; And filter block, this filter block is positioned at described discharge route and is adjacent to described low melting alloy piece.
In the technical solution of the utility model, low melting alloy and blast tube branch are arranged, the low melting alloy of fusing is flowed out by filter block, and realize the release of combustion gas, thereby be a kind of more safe and reliable pressure releasing means by the unlatching of spool.
By pressure releasing means of the present utility model, when the low melting alloy melted by heat, low melting alloy is pushed by spool in liquid mode, and flow out by filter block, push the low melting alloy that has melted along with spool, combustion gas release gas circuit is opened unimpeded, thereby guarantees radially ventilating hole safe release of combustion gas.
Since melted by heat low melting alloy be under the spool push effect, to flow out by filter block.Like this, when external temperature near the low melting alloy melting point, make under the situation of low melting alloy deliquescing, the low melting alloy of soft attitude can not extruded by pressurized gas easily, and have only when external temperature reaches the low melting alloy melting point, the low melting alloy plug is just really opened, to guarantee safety.
In addition, blast tube separates with low melting alloy and does not contact.Like this, when ambient temperature reached the fusing of low melting alloy melting point and low melting alloy and is extruded, low melting alloy can not solidify once more because of combustion gas release, temperature reduce.
By below in conjunction with the description of accompanying drawing, can more be expressly understood other purpose of the present utility model, feature and advantage to the utility model one preferred embodiment.
Description of drawings
Fig. 1 is the sectional view according to the pressure releasing means of the band low melting alloy plug of the utility model one preferred embodiment;
Fig. 2 be device shown in Figure 1 after the low melting alloy melted by heat is extruded, blast tube is opened the sectional view under the situation; And
The schematic representation of the low melting alloy formula pressure releasing means of Fig. 3 prior art.
Embodiment
Fig. 1 shows the pressure releasing means according to the band low melting alloy plug that is used for compression hydrogen and compressed natural gas usefulness valve of the utility model one preferred embodiment, and it mainly is installed on the corresponding high pressure gas valve, and communicates with gas cylinder by valve passage.
As shown in Figure 1, this pressure releasing means mainly comprises: body 1, this body have the air-flow path 1a of supplied gas discharge and the discharge route 1b that discharges for the low melting alloy of fusing; Spool 2, this spool slide in described body 1 to close or to open described air-flow path 1a, and an end of this spool is facing to described low melting alloy discharge route 1b; Low melting alloy piece 3, this low melting alloy piece are adjacent to that end facing to described low melting alloy discharge route 1b of described spool 2; And filter block 4, this filter block is positioned at described discharge route 1b and is adjacent to described low melting alloy piece 3.
In this embodiment, also be provided with the block 6 that is adjacent to filter block 4, this block 6 links to each other with body 1 by thread forms, simultaneously can also be fixing with pin 5 between block 6 and body 1, in case stop block 6 loosening and artificial dismountings.It should be understood that described block 6 and linkage structure thereof not right and wrong this can not.For example, block 6 can be formed by body 1 part own, and linkage structure also can adopt welding, riveted joint alternate manner.
For preventing gas leakage, preferably in pressure releasing means, be provided with Sealing.For example, in this embodiment, spool 2 is provided with as two O shapes circle 7,9 of Sealing and makes the baffle ring 8 of location usefulness between two O shapes circle.This pressure releasing means preferably also has a diaphragm seal 10, and sealing sheet 10 is for example made by soft non-ferrous metal, be used for this pressure releasing means and the valve body 11 that matches between sealing.
In addition, filter block 4 for example can adopt the agglomerate that comprises metal granule commercially availabie, and selects the product with different filter sizes as required for use.
The working condition of pressure releasing means of the present utility model below will be described.
1. normal temperature working state
Under the normal temperature working state, two O shapes circle 7,9 and diaphragm seal 10 on the spool 2 are in the no leak condition of sealing, but the foot passage of spool 2 communicates with pressurized gas in the container all the time.The low melting alloy 3, filter block 4 and the block 6 that are adjacent to spool 2 settings can guarantee that spool 2 is not ejected by pressurized gas.
2. pressure discharges working state
Under the situation that ambient temperature raises, the gas meeting Yin Wendu in the gas cylinder raises and expands, and makes that the gas pressure in the gas cylinder sharply raises.For elevated pressure under the control hot environment makes unsafe factors such as gas cylinder spalling, explosion, the common pressure releasing means that needs employing to be with the low melting alloy plug discharges the pressurized gas in the gas cylinder, to guarantee safety.
Pressure releasing means of the present utility model just is being based on above situation and is designing.In the use, when ambient temperature reaches certain height as 100 ℃ or 110 ℃, low melting alloy 3 is with melted by heat, the interior pressurized gas of container this moment are upwards pushed spool 2, and the liquid low melting alloy that will melt is discharged through filter block 4, along with the continuation of spool 2 is upwards pushed, the pressurized gas in the container will be along unimpeded air-flow path from the radially outside safe release of ventilating hole.
Though abovely pressure releasing means of the present utility model has been done detailed description, has been familiar with those skilled in the art should make various equivalences on the basis of above disclosure change, modification and replacement in conjunction with a preferred embodiment.Therefore, protection domain of the present utility model should be limited by appended claims.
Claims (8)
1. pressure releasing means that is used for compression hydrogen or compressed natural gas with the band low melting alloy plug of valve, it is characterized in that, comprise: body (1), this body have the air-flow path (1a) of supplied gas discharge and the discharge route (1b) of discharging for the low melting alloy of fusing; Spool (2), this spool slide in described body to close or to open described air-flow path, and an end of this spool is facing to described low melting alloy discharge route; Low melting alloy piece (3), this low melting alloy piece are adjacent to that end facing to described low melting alloy discharge route of described spool; And filter block (4), this filter block is positioned at described discharge route and is adjacent to described low melting alloy piece.
2. pressure releasing means as claimed in claim 1 is characterized in that, described pressure releasing means also is provided with the block (6) that is adjacent to described filter block.
3. pressure releasing means as claimed in claim 2 is characterized in that, described block (6) links to each other with described body by screw thread.
4. pressure releasing means as claimed in claim 2 is characterized in that, and is fixing by pin (5) between described block (6) and the described body (1).
5. pressure releasing means as claimed in claim 1 is characterized in that, described spool (2) is provided with Sealing.
6. pressure releasing means as claimed in claim 5 is characterized in that, described Sealing comprises two O shape circles (7,9) and make the baffle ring (8) of location usefulness between two O shape circles.
7. pressure releasing means as claimed in claim 1 is characterized in that, this pressure releasing means also has a diaphragm seal (10), the sealing between the valve body that is used for described pressure releasing means and matches (11).
8. pressure releasing means as claimed in claim 7 is characterized in that, described diaphragm seal (10) is made by soft non-ferrous metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520041916 CN2828499Y (en) | 2005-05-27 | 2005-05-27 | Pressure releasing device with easy fusing alloy plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520041916 CN2828499Y (en) | 2005-05-27 | 2005-05-27 | Pressure releasing device with easy fusing alloy plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2828499Y true CN2828499Y (en) | 2006-10-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520041916 Expired - Lifetime CN2828499Y (en) | 2005-05-27 | 2005-05-27 | Pressure releasing device with easy fusing alloy plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2828499Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871538A (en) * | 2010-06-17 | 2010-10-27 | 重庆昆瑜锂业有限公司 | Lithium liquid stopping device |
| CN101743422B (en) * | 2007-07-16 | 2012-04-25 | 米其林技术公司 | High-pressure fluid safety valve |
| CN103343796A (en) * | 2013-06-28 | 2013-10-09 | 上海斐讯数据通信技术有限公司 | Power system for portable device and achieving method |
| CN104235452A (en) * | 2014-09-05 | 2014-12-24 | 宁波富华阀门有限公司 | Safety release device for vehicle natural gas valve and assembling process thereof |
| CN104508341A (en) * | 2013-03-04 | 2015-04-08 | 川崎重工业株式会社 | Fusible plug type safety valve |
| CN106014312A (en) * | 2016-06-30 | 2016-10-12 | 中石化石油工程技术服务有限公司 | Pump-out storage type fusing releaser special for logging |
| CN106931210A (en) * | 2017-04-26 | 2017-07-07 | 珠海格力电器股份有限公司 | Fusible plug and pressure equipment |
| CN107289163A (en) * | 2017-06-30 | 2017-10-24 | 上海百图低温阀门有限公司 | Automobile-used high pressure compressed hydrogen cylinder safety device |
| CN112984185A (en) * | 2019-12-16 | 2021-06-18 | 现代自动车株式会社 | Temperature pressure relief device |
| CN113790393A (en) * | 2021-09-10 | 2021-12-14 | 张家港富瑞阀门有限公司 | Relief device, high-pressure hydrogen integrated cylinder valve with relief device and relief method |
-
2005
- 2005-05-27 CN CN 200520041916 patent/CN2828499Y/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101743422B (en) * | 2007-07-16 | 2012-04-25 | 米其林技术公司 | High-pressure fluid safety valve |
| CN101871538B (en) * | 2010-06-17 | 2012-06-27 | 重庆昆瑜锂业有限公司 | Lithium liquid stopping device |
| CN101871538A (en) * | 2010-06-17 | 2010-10-27 | 重庆昆瑜锂业有限公司 | Lithium liquid stopping device |
| CN104508341A (en) * | 2013-03-04 | 2015-04-08 | 川崎重工业株式会社 | Fusible plug type safety valve |
| CN103343796B (en) * | 2013-06-28 | 2016-03-02 | 上海斐讯数据通信技术有限公司 | A kind of power system for portable set and implementation method |
| CN103343796A (en) * | 2013-06-28 | 2013-10-09 | 上海斐讯数据通信技术有限公司 | Power system for portable device and achieving method |
| CN104235452A (en) * | 2014-09-05 | 2014-12-24 | 宁波富华阀门有限公司 | Safety release device for vehicle natural gas valve and assembling process thereof |
| CN106014312A (en) * | 2016-06-30 | 2016-10-12 | 中石化石油工程技术服务有限公司 | Pump-out storage type fusing releaser special for logging |
| CN106931210A (en) * | 2017-04-26 | 2017-07-07 | 珠海格力电器股份有限公司 | Fusible plug and pressure equipment |
| CN106931210B (en) * | 2017-04-26 | 2023-02-28 | 珠海格力电器股份有限公司 | Fusible plug and pressure equipment |
| CN107289163A (en) * | 2017-06-30 | 2017-10-24 | 上海百图低温阀门有限公司 | Automobile-used high pressure compressed hydrogen cylinder safety device |
| CN112984185A (en) * | 2019-12-16 | 2021-06-18 | 现代自动车株式会社 | Temperature pressure relief device |
| CN113790393A (en) * | 2021-09-10 | 2021-12-14 | 张家港富瑞阀门有限公司 | Relief device, high-pressure hydrogen integrated cylinder valve with relief device and relief method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150527 Granted publication date: 20061018 |