CN102537438A - Gas explosion-protection device - Google Patents
Gas explosion-protection device Download PDFInfo
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- CN102537438A CN102537438A CN2012100105451A CN201210010545A CN102537438A CN 102537438 A CN102537438 A CN 102537438A CN 2012100105451 A CN2012100105451 A CN 2012100105451A CN 201210010545 A CN201210010545 A CN 201210010545A CN 102537438 A CN102537438 A CN 102537438A
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- pipeline
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- inlet end
- plunger
- gas explosion
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Abstract
A gas explosion-protection device comprises a piston. One end of the piston is connected with one end of an elastic support component, the other end of the elastic support component is fixed onto a gas inlet end pipeline through a support plate, an opening at one end of the gas inlet end pipeline is a gas inlet, an opening at the other end of the gas inlet end pipeline is a gas outlet, the piston is arranged in a piston chamber, the diameter of the piston chamber is larger than that of the gas inlet end pipeline and that of a gas outlet end pipeline, a foldable and telescopic sealing part is arranged between the gas inlet end pipeline and the gas outlet end pipeline, a plunger is arranged in the sealing part, the upper end of the plunger is disk-shaped, the lower end of the plunger is hemispherical, and a hemispherical groove matched with the hemispherical lower end of the plunger is arranged at the position of the gas inlet end pipeline under the plunger. The gas explosion-protection device is compact in structure, high in safety performance, low in manufacturing cost and wide in applicable range.
Description
Technical field
The present invention relates to a kind of gas explosion preventing device.
Background technique
Existing coal gas, hydrogen or other inflammable gas are generally stored after processed compressed, and in use, these pressurized gass or liquid will be with higher pressure outputs.There is the carelessness inflammable gas will leak also slightly and might causes fire.Common gas combustion apparatus; If when its combustion is blasted because of gas leakage or other reasons, may the gas valve of outlet side be blown up, at this moment; If untimely closing control switch and inlet end pipeline; To cause the blast of whole pipe and gas holder, even might cause wider leakage or chain explosion, lead to major accident.Therefore on conveyance conduit, must load onto the explosion and leakage prevention safety installations.
Chinese patent 01127668.1 discloses a kind of anti-explosion fuel gas safety device; In the pressure ball chamber on its U-bend left side spring and pressure ball are housed; The insulation blocking sheet connected and be provided with to one end of its left end cylinder can with the external world; The other end is provided with separator piston, and the external part of piston can stop up the right of " U " shape bend pipe.Magnetic force ball also is equipped with on the right at U-bend, and Magnetic force ball just often is suspended in the middle part in Magnetic force ball chamber and can moves up and down.This device has following defective: at first, its separator piston does not have resetting means, in case the place, air outlet has pressure surge just can cause whole valve paralysis to restore; Secondly, if delivery outlet blast outward, just then pressure ball and piston end can directly be shut gas circuit.If inwall magnetic rings and spheroid magnetic rings are permanent magnets, then Magnetic force ball can't work at all.If inwall magnetic rings and spheroid magnetic rings are to lean on current reversal change polarity and promote Magnetic force ball work, then can't form enough big power and come sealing pipeline.
Chinese patent 200810060266.X discloses a kind of gas automatic explosion-proof safety device; Also have following defective: when extraneous breaking out of fire or explosion time, the gas of HTHP causes further burning even blast with regard to scurrying into pipeline already before fusible link fusing; In addition, passive outer slide and active outer slide are set simultaneously, complex structure, energy consumption is high.
Summary of the invention
In order to overcome the above-mentioned defective that existing technology exists, the present invention provides a kind of Safety performance high, low cost of manufacture, gas explosion preventing device applied widely.
Technological scheme of the present invention is: it comprises piston; One end of said piston links to each other with elastic support member one end, and the other end of said elastic support member is fixed on the inlet end pipeline through support plate, and an end opening of inlet end pipeline is a suction port; One end opening of outlet side pipeline is the air outlet; Said piston places in the piston chamber, and the diameter of said piston chamber is bigger than inlet end pipeline and outlet side pipeline, between inlet end pipeline and outlet side pipeline, is provided with a collapsible flexible Sealing; Said Sealing is built-in with plunger; Said plunger upper end is a disc, and the lower end of plunger is a hemisphere, and the inlet end pipeline place under the plunger is provided with the hemispherical groove that the hemisphere lower end with plunger adapts.
Further, said elastic support member is a spring.
Further, said piston chamber is a spheroidal, and piston is cylindrical, and inlet end pipeline and outlet side pipeline are cylindrical pipe, can play better seal action when being beneficial to work.
Further, said plunger is a cylindrical bar scapus plug.
Further, the equal diameters of the diameter of said piston and inlet end pipeline and outlet side pipeline can play better seal action when being beneficial to work.
Further, said Sealing can be selected plastic seal for use, is beneficial to reduce manufacture cost.
Further, said outlet side pipeline be provided with can with the contacted insulation blocking sheet in the external world, make excessive explosion pressure can directly break through the insulation blocking sheet, the protection gas cylinder safety.
Further, on the said inlet end pipeline suction valve is installed.
The present invention's gas explosion preventing device is connected with gas cylinder with the air outlet through suction port; Pipeline has certain anti-pressure ability; Shi Buhui bursts easily blasting; Even the gas valve of gas cylinder is blown up, also can realize the inlet end pipeline is closed automatically, and then prevent further to leak or blast.
Compact structure of the present invention, Safety performance is high, low cost of manufacture, energy consumption is low, and is applied widely.
Description of drawings
Fig. 1 is the structural representation of one embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is described further.
With reference to Fig. 1, present embodiment comprises piston 5, and piston 5 one ends link to each other with elastic support member 4 one ends; Elastic support member 4 is a spring, and elastic support member 4 the other ends are fixed on the inlet end pipeline 13 through support plate 3, and inlet end pipeline 13 1 end openings are suction port 1; Pipeline 14 1 end openings in outlet side are air outlet 8; Piston 5 places in the piston chamber 12, and piston chamber's 12 diameters are bigger than inlet end pipeline 13 and outlet side pipeline 14, between inlet end pipeline 13 and outlet side pipeline 14, are provided with a collapsible flexible Sealing 7; Sealing 7 is a plastic seal; Sealing 7 is built-in with plunger 72, and plunger 72 upper ends are disc 71, can drive collapsible flexible Sealing 7 and move together; The lower end of plunger 72 is a hemisphere 721, and the inlet end pipeline place under the plunger 72 is provided with the hemispherical groove 11 that the hemisphere lower end 721 with plunger 72 adapts, and is beneficial to realize the sealing to gas.
Said piston chamber 12 is the ball chamber; Piston 5 is a cylindrical piston; Inlet end pipeline 13 is a cylindrical pipe with outlet side pipeline 14, and the equal diameters of the diameter of piston 5 and inlet end pipeline 13 and outlet side pipeline 14 can play better seal action when being beneficial to work.
Said plunger 72 is a cylindrical bar scapus plug.
Outlet side pipeline 14 be provided with can with the contacted insulation blocking sheet 6 in the external world, make excessive explosion pressure can directly break through the insulation blocking sheet, the protection gas cylinder safety.
Suction valve 2 is installed on the inlet end pipeline 13.
Working principle:
When combustion gas is blasted when gas valve blown up; Pressure in the outlet side pipeline 14 increases, and collapsible Sealing 7 upper ends stretch, the lower end compression; Thereby make plunger 72 hemisphere lower ends 721 go deep into closely cooperating with hemispherical groove 11 in the inlet end pipeline 13, inlet end pipeline 13 is blocked.Simultaneously, the effect that places the piston 5 in the piston chamber 12 to be under pressure, with length of spring compressed, piston 5 moves down, and inlet end pipeline 13 is blocked, and has constituted the double seal to inlet end pipeline 13 with plunger 72, thereby has prevented the further leakage and the blast of combustion gas.
When pipeline 14 internal pressures in outlet side were too high, insulation blocking sheet 6 was blown, and has prevented that manifold pressure is too high, has protected the safety of gas cylinder.
When insulation blocking sheet 6 is blown or after outlet side pipeline 14 bursts; Pressure-less state appears suddenly in outlet side pipeline 14 places; This moment, piston chamber's 12 interior pistons 5 bore the pressure from inlet end pipeline 13, made and moved stretching on the spring, and piston 5 moves under the effect of spring; Outlet side pipeline 14 is blocked, avoided the gas leakage in the gas cylinder.
Claims (8)
1. a gas explosion preventing device comprises piston, it is characterized in that; One end of said piston links to each other with elastic support member one end, and the other end of said elastic support member is fixed on the inlet end pipeline through support plate, and an end opening of inlet end pipeline is a suction port; One end opening of outlet side pipeline is the air outlet; Said piston places in the piston chamber, and the diameter of said piston chamber is bigger than inlet end pipeline and outlet side pipeline, between inlet end pipeline and outlet side pipeline, is provided with a collapsible flexible Sealing; Said Sealing is built-in with plunger; The upper end of said plunger is a disc, and the lower end of plunger is a hemisphere, and the inlet end pipeline place under the plunger is provided with the hemispherical groove that the hemisphere lower end with plunger adapts.
2. gas explosion preventing device according to claim 1 is characterized in that, said elastic support member is a spring.
3. gas explosion preventing device according to claim 1 is characterized in that, said piston chamber is a spheroidal, and piston is cylindrical, and inlet end pipeline and outlet side pipeline are cylindrical pipe.
4. gas explosion preventing device according to claim 1 and 2 is characterized in that, said plunger is a cylindrical bar scapus plug.
5. gas explosion preventing device according to claim 1 and 2 is characterized in that, the equal diameters of the diameter of said piston and inlet end pipeline and outlet side pipeline.
6. gas explosion preventing device according to claim 1 and 2 is characterized in that, said Sealing is a plastic seal.
7. gas explosion preventing device according to claim 1 and 2 is characterized in that, said outlet side pipeline be provided with can with the contacted insulation blocking sheet in the external world.
8. gas explosion preventing device according to claim 1 and 2 is characterized in that, on the said inlet end pipeline suction valve is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100105451A CN102537438A (en) | 2012-01-14 | 2012-01-14 | Gas explosion-protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100105451A CN102537438A (en) | 2012-01-14 | 2012-01-14 | Gas explosion-protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102537438A true CN102537438A (en) | 2012-07-04 |
Family
ID=46345066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100105451A Pending CN102537438A (en) | 2012-01-14 | 2012-01-14 | Gas explosion-protection device |
Country Status (1)
| Country | Link |
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| CN (1) | CN102537438A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104344034A (en) * | 2014-09-17 | 2015-02-11 | 昆山嘉科环保设备有限公司 | Pipeline explosion venting device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003095878A1 (en) * | 2002-05-08 | 2003-11-20 | Tepsa, Gordon, E. | Gas safety valve |
| CN1232746C (en) * | 2001-07-25 | 2005-12-21 | 辛伟芳 | Anti-explosion fuel gas safety device |
| CN201016406Y (en) * | 2007-01-18 | 2008-02-06 | 浙江盾安精工集团有限公司 | Relief valve |
| CN101260948A (en) * | 2008-04-14 | 2008-09-10 | 陈朋海 | Gas automatic explosion-proof safety device |
| CN202418785U (en) * | 2012-01-14 | 2012-09-05 | 刘立文 | Energy-saving gas explosion-proof safety device |
-
2012
- 2012-01-14 CN CN2012100105451A patent/CN102537438A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1232746C (en) * | 2001-07-25 | 2005-12-21 | 辛伟芳 | Anti-explosion fuel gas safety device |
| WO2003095878A1 (en) * | 2002-05-08 | 2003-11-20 | Tepsa, Gordon, E. | Gas safety valve |
| CN201016406Y (en) * | 2007-01-18 | 2008-02-06 | 浙江盾安精工集团有限公司 | Relief valve |
| CN101260948A (en) * | 2008-04-14 | 2008-09-10 | 陈朋海 | Gas automatic explosion-proof safety device |
| CN202418785U (en) * | 2012-01-14 | 2012-09-05 | 刘立文 | Energy-saving gas explosion-proof safety device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104344034A (en) * | 2014-09-17 | 2015-02-11 | 昆山嘉科环保设备有限公司 | Pipeline explosion venting device |
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Application publication date: 20120704 |