CN104235452A - Safety release device for vehicle natural gas valve and assembling process thereof - Google Patents
Safety release device for vehicle natural gas valve and assembling process thereof Download PDFInfo
- Publication number
- CN104235452A CN104235452A CN201410448251.6A CN201410448251A CN104235452A CN 104235452 A CN104235452 A CN 104235452A CN 201410448251 A CN201410448251 A CN 201410448251A CN 104235452 A CN104235452 A CN 104235452A
- Authority
- CN
- China
- Prior art keywords
- pressure release
- release passage
- natural gas
- low melting
- melting alloy
- 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
- F16K17/40—Safety valves; Equalising valves, e.g. pressure relief valves with a fracturing member, e.g. fracturing diaphragm, glass, fusible joint
- F16K17/403—Safety valves; Equalising valves, e.g. pressure relief valves with a fracturing member, e.g. fracturing diaphragm, glass, fusible joint with a fracturing valve member
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- 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
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/14—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member
- F16K17/16—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member with fracturing diaphragm ; Rupture discs
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The invention relates to a safety release device for a vehicle natural gas valve. The safety release device comprises a release device body and a flange arranged on the release device body; a pressure relief channel is formed in the release device body; the flange is provided with a plurality of pressure relief holes; the pressure relief channel is communicated with the pressure relief holes; fusible alloy is poured in the pressure relief holes and the pressure relief channel; the fusible alloy in the pressure relief channel is positioned in a vacant state, a fusible alloy post is inserted into the end part of the pressure relief channel and tightly extrudes the fusible alloy poured in the pressure relief channel. The assembling process for the safety release device for the vehicle natural gas valve comprises the following steps of a, integrally forming the release device body and the flange by using a die; b, pouring fluid fusible alloy into the pressure relief holes and the pressure relief channel by using a pouring tool; c, inserting the pre-formed fusible alloy post into the pressure relief channel to extrude the poured fusible alloy. The safety release device is simple in structure, timely in pressure relief and convenient and quick to assemble.
Description
Technical field
The present invention relates to a kind of natural gas used for automobile valve, especially a kind of safety relief device of natural gas used for automobile valve and packaging technology thereof.
Background technique
Rock gas, it is a kind of multi-component mixed gaseous fossil fuel, main component is alkane, wherein methane accounts for the overwhelming majority, separately there is a small amount of ethane, propane and butane, there is calorific value high, the advantages such as cleaning, rock gas is conventional combustion gas, both can be used as the power source that domestic fuel also can be used as the fuel such as industrial fuel and vehicular engine, mostly present natural gas used for automobile is to be undertaken transporting and storing by steel cylinder, the opening of steel cylinder is all provided with valve, be used for controlling the keying of gas and output flow, but as inflammable gas, when the collision that temperature is too high or generation is larger in the external world, gas in steel cylinder will expand, if the pressure release not in time of natural gas used for automobile valve, the phenomenon of bottle explosion will be there is, for this reason, more existing automobile-used natural gas used for automobile valves are provided with pressure security bleeder, the safe handling of valve is played an important role.Existing safety relief device as shown in Figure 1, mainly comprise bleeder body 1a and be arranged on the flange 2a on bleeder body 1a, pressure release passage 3a is provided with in bleeder body 1a, flange 2a is provided with some relief hole 4a, pressure release passage 3a and relief hole 4a is interconnected, water in pressure release passage 3a and relief hole 4a and fill low melting alloy, be pressure release explosion mouth at the opening of pressure release passage 3a, and be provided with safety blasting paper tinsel, the aperture of explosion mouth directly affects the stability of pressure release, do not cut brokenly by the orifice in explosion oral pore footpath to make safety blasting paper tinsel and the stability of pressure release, arc angling 5a is provided with at the opening of pressure release passage 3a, the low melting alloy arranged in this safety relief device is mainly when steel cylinder is in stable, play closed pressure release passage, the effect of relief hole and support safety explosion paper tinsel, when natural gas used for automobile in steel cylinder sharply expands due to the impact raised by temperature, when temperature and pressure raises simultaneously and reaches default temperature and pressure limiting value, low melting alloy melts immediately, pressurized gas in steel cylinder break through safety blasting paper tinsel and release from pressure release passage 3a and relief hole 4a.
The low melting alloy of existing safety relief device is pressure release passage 3a and relief hole 4a perfusion be full of direct after the fusing of low melting alloy block when pouring into a mould, this pouring procedure extremely easily causes low melting alloy to overflow from the explosion mouth pressure release passage 3a, cause expensive low melting alloy waste, and the mode of this cast easily produces internal shrinkage, low melting alloy and pressure release passage and relief hole bond insecure, easily be extruded when normal temperature pressurized, thus occur the phenomenon of leakage or pressure release too early;
And the bursting pressure of safety blasting paper tinsel is relevant with the bore in pressure release passage 3a opening aperture, the bursting pressure of any one safety relief device setting and the bore in pressure release passage 3a opening aperture have direct relation, the size of bore directly affects the stability of explosion, existing safety relief device is after watering and filling, also must cut the low melting alloy remained on pressure release passage 3a opening end face, as easy as rolling off a log like this destruction pressure release passage 3a opening is with the aperture bore of arc angling, aperture bore is once be damaged, the bursting pressure being fixed on the safety blasting paper tinsel of pressure release passage 3a opening will change and affect the stability of explosion, just there will be pressure release not in time or the serious consequence of too early pressure release, cause seriously security incident and property loss.
Summary of the invention
The object of the invention is the defect existing for the safety relief device in order to solve natural gas used for automobile valve in prior art, providing a kind of design accuracy high, pressure release is the safety relief device of natural gas used for automobile valve and packaging technology thereof timely.
To achieve these goals, the technical solution used in the present invention is:
A kind of safety relief device of natural gas used for automobile valve, the flange comprising bleeder body and be arranged on bleeder body, pressure release passage is provided with in described bleeder body, flange is provided with some relief holes, described pressure release passage and relief hole are interconnected, low melting alloy is cast with in described relief hole and pressure release passage, low melting alloy in described pressure release passage is in vacant state, the end of pressure release passage be inserted with low melting alloy post and squeezed tight in being cast in the low melting alloy in pressure release passage.
The safety relief device of above-mentioned a kind of natural gas used for automobile valve, the opening of described pressure release passage is provided with arc angling.
The safety relief device of above-mentioned a kind of natural gas used for automobile valve, the opening of described pressure release passage is provided with safety blasting paper tinsel.
The safety relief device of above-mentioned a kind of natural gas used for automobile valve, the radius of described arc angling is preferably 0.5mm.
The safety relief device of above-mentioned a kind of natural gas used for automobile valve, described bleeder body and flange one-body molded.
The safety relief device of above-mentioned a kind of natural gas used for automobile valve, described relief hole is circular array arrangement on flange.
The safety relief device of above-mentioned a kind of natural gas used for automobile valve, in described pressure release passage, half filled by low melting alloy.
The packaging technology of the safety relief device of above-mentioned natural gas used for automobile valve, comprises the steps:
A, to be made by mould bleeder body and flange one-body molded;
B, in relief hole and pressure release passage, poured into a mould the low melting alloy of fluid by cast instrument;
C, low melting alloy plunger shaping in advance entered in pressure release passage and be squeezed in the low melting alloy of cast.
The packaging technology of the safety relief device of above-mentioned a kind of natural gas used for automobile valve, is characterized in that, the diameter of described low melting alloy post is more smaller than the bore of described pressure release passage.
Beneficial effect of the present invention is: the safety relief device of this natural gas used for automobile valve adopts low melting alloy to pour into a mould the mode combined with low melting alloy column filling and assembles, low melting alloy can not be caused to overflow and cause waste, after low melting alloy post inserts pressure release passage, the end face of low melting alloy post and the end face of pressure release passage, form interference fit, not easily extrude, nor increase the operation of cutting pressure release passage end face with extra again, also the aperture being preset in pressure release passage opening band arc angling can not be destroyed in the process of assembling, once reach the condition of pressure release, namely the safety blasting ultimate pressure that paper tinsel bears being placed in aperture place is consistent with default burst pressure force value, now, rock gas causes temperature to raise due to expansion, when pressure and temperature reaches the critical value of safety blasting paper tinsel and low melting alloy, safety relief can be carried out in time, there will not be too early pressure release or pressure release phenomenon not in time, this apparatus structure is simple, easy to assembly, fast, substantially increase the stability of safety relief.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of safety relief device in background technique;
Fig. 2 is structural representation of the present invention;
Fig. 3 is sectional view of the present invention;
Fig. 4 is the A district enlarged view in Fig. 3.
Embodiment
Further understand for making to have structure characteristic of the present invention and effect of reaching and be familiar with, coordinate detailed description in order to preferred embodiment and accompanying drawing, be described as follows:
As Fig. 2, Fig. 3, shown in Fig. 4, a kind of safety relief device of natural gas used for automobile valve, comprise bleeder body 1 and be arranged on the flange 2 on bleeder body 1, bleeder body 1 and flange 2 one-body molded, pressure release passage 3 is provided with in bleeder body 1, flange 2 is provided with some relief holes 4, relief hole 4 is circular array arrangement on flange 2, pressure release passage 3 and relief hole 4 are interconnected, low melting alloy 7 is cast with in relief hole 4 and pressure release passage 3, low melting alloy 7 in pressure release passage 3 is in vacant state, the end of pressure release passage is inserted with low melting alloy post 5 and low melting alloy 7 in squeezed tight pressure release passage, wherein, the low melting alloy 7 of filling in pressure release passage 3 is preferably half.
The opening of pressure release passage 3 is provided with arc angling 6, and the opening of pressure release passage 3 is provided with safety blasting paper tinsel (not shown), and the radius of arc angling 6 is preferably 0.5mm.
In the present invention, the packaging technology of the safety relief device of natural gas used for automobile valve, comprises the steps:
A, to be made by mould bleeder body 1 and flange 2 one-body molded;
B, by the low melting alloy 7 of cast instrument toward cast fluid in relief hole 4 and pressure release passage 3;
C, being filled in by low melting alloy post 5 shaping in advance in pressure release passage 3 and extrude low melting alloy 7, wherein, the diameter of low melting alloy post 5 is more smaller than the bore of pressure release passage 3.
The safety relief device of this natural gas used for automobile valve adopts low melting alloy 7 cast to fill with low melting alloy post 5 mode combined and assembles, waste can not be caused because low melting alloy 7 overflows, after low melting alloy post 5 inserts pressure release passage 3, the end face of low melting alloy post 5 and the end face of pressure release passage 3, additionally need not increase the operation of cutting pressure release passage end face again, also the aperture being preset in pressure release passage opening band arc angling 6 can not be destroyed in the process of assembling, once reach pressure release condition, namely when the ultimate pressure that the safety blasting paper tinsel being placed in aperture place bears is consistent with default burst pressure force value, rock gas causes temperature to raise due to expansion, when pressure and temperature reaches the critical value of safety blasting paper tinsel and low melting alloy 7 low melting alloy post 5, safety relief can be carried out in time, there will not be too early pressure release or pressure release phenomenon not in time, this apparatus structure is simple, easy to assembly, fast, substantially increase the stability of safety relief.
More than show and describe basic principle of the present invention, major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; the just principle of the present invention described in above-described embodiment and specification; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in claimed scope of the present invention.The protection domain of application claims is defined by appending claims and equivalent thereof.
Claims (9)
1. the safety relief device of a natural gas used for automobile valve, the flange comprising bleeder body and be arranged on bleeder body, pressure release passage is provided with in described bleeder body, flange is provided with some relief holes, described pressure release passage and relief hole are interconnected, it is characterized in that, low melting alloy is cast with in described relief hole and pressure release passage, low melting alloy in described pressure release passage is in vacant state, and the end of pressure release passage is inserted with low melting alloy post and squeezed tight is cast in the low melting alloy in pressure release passage.
2. the safety relief device of a kind of natural gas used for automobile valve according to claim 1, it is characterized in that, the opening of described pressure release passage is provided with arc angling.
3. the safety relief device of a kind of natural gas used for automobile valve according to claim 2, is characterized in that, the opening of described pressure release passage is provided with safety blasting paper tinsel.
4. the safety relief device of a kind of natural gas used for automobile valve according to claim 2, it is characterized in that, the radius of described arc angling is preferably 0.5mm.
5. the safety relief device of a kind of natural gas used for automobile valve according to claim 1, is characterized in that, described bleeder body and flange one-body molded.
6. the safety relief device of a kind of natural gas used for automobile valve according to claim 1, is characterized in that, described relief hole is circular array arrangement on flange.
7. the safety relief device of a kind of natural gas used for automobile valve according to claim 1, is characterized in that, in described pressure release passage, half filled by low melting alloy.
8., based on a packaging technology for the safety relief device of natural gas used for automobile valve according to claim 1, it is characterized in that, comprise the steps:
A, to be made by mould bleeder body and flange one-body molded;
B, in relief hole and pressure release passage, poured into a mould the low melting alloy of fluid by cast instrument;
C, low melting alloy plunger shaping in advance entered in pressure release passage and be squeezed in the low melting alloy of cast.
9. the packaging technology of the safety relief device of a kind of natural gas used for automobile valve according to claim 8, is characterized in that, the diameter of described low melting alloy post is more smaller than the bore of described pressure release passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410448251.6A CN104235452A (en) | 2014-09-05 | 2014-09-05 | Safety release device for vehicle natural gas valve and assembling process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410448251.6A CN104235452A (en) | 2014-09-05 | 2014-09-05 | Safety release device for vehicle natural gas valve and assembling process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104235452A true CN104235452A (en) | 2014-12-24 |
Family
ID=52224091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410448251.6A Pending CN104235452A (en) | 2014-09-05 | 2014-09-05 | Safety release device for vehicle natural gas valve and assembling process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104235452A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109681685A (en) * | 2019-01-09 | 2019-04-26 | 中国原子能科学研究院 | A kind of rupture disk protective device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006029577A (en) * | 2004-06-14 | 2006-02-02 | Senju Sprinkler Kk | Fusible tap |
| CN2828499Y (en) * | 2005-05-27 | 2006-10-18 | 罗达莱克斯阀门(上海)有限公司 | Pressure releasing device with easy fusing alloy plug |
| CN203115215U (en) * | 2013-01-21 | 2013-08-07 | 宁波富华阀门有限公司 | Embedded type safety helmet and compression cylinder valve using same |
| CN203115216U (en) * | 2013-01-21 | 2013-08-07 | 宁波富华阀门有限公司 | Split type safety helmet and compressing cylinder valve using same |
| CN204312807U (en) * | 2014-09-05 | 2015-05-06 | 宁波富华阀门有限公司 | A kind of safety relief device of natural gas used for automobile valve |
-
2014
- 2014-09-05 CN CN201410448251.6A patent/CN104235452A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006029577A (en) * | 2004-06-14 | 2006-02-02 | Senju Sprinkler Kk | Fusible tap |
| CN2828499Y (en) * | 2005-05-27 | 2006-10-18 | 罗达莱克斯阀门(上海)有限公司 | Pressure releasing device with easy fusing alloy plug |
| CN203115215U (en) * | 2013-01-21 | 2013-08-07 | 宁波富华阀门有限公司 | Embedded type safety helmet and compression cylinder valve using same |
| CN203115216U (en) * | 2013-01-21 | 2013-08-07 | 宁波富华阀门有限公司 | Split type safety helmet and compressing cylinder valve using same |
| CN204312807U (en) * | 2014-09-05 | 2015-05-06 | 宁波富华阀门有限公司 | A kind of safety relief device of natural gas used for automobile valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109681685A (en) * | 2019-01-09 | 2019-04-26 | 中国原子能科学研究院 | A kind of rupture disk protective device |
| CN109681685B (en) * | 2019-01-09 | 2023-09-29 | 中国原子能科学研究院 | Rupture disk protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141224 |