CN207454847U - A kind of safe pressure relief device for gas cylinder - Google Patents
A kind of safe pressure relief device for gas cylinder Download PDFInfo
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- CN207454847U CN207454847U CN201721604486.5U CN201721604486U CN207454847U CN 207454847 U CN207454847 U CN 207454847U CN 201721604486 U CN201721604486 U CN 201721604486U CN 207454847 U CN207454847 U CN 207454847U
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- valve
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- venthole
- glass column
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Abstract
The utility model provides a kind of safe pressure relief device for gas cylinder, the main body of venthole is equipped with including one end, the valve that can be slided in the main body mobile cavity of main body, body side is equipped with gas vent, body interior is equipped with to connect the venting channels of venthole and gas vent, pressure cap is installed in the main body other end, temperature-sensitive glass column is equipped between pressure cap and valve, during pressure relief device normal use, temperature-sensitive glass column is pressed on valve, valve closes venthole under temperature-sensitive glass column position-limiting action, when pressure relief device reaches pressure release condition, temperature-sensitive glass column releases the /V to valve after being bursting at the collision, venthole is opened in valve movement under pressure effect at venthole, venthole is made to be connected by venting channels with gas vent.The present apparatus have the advantages that it is rational in infrastructure, be active in one's movements, security performance it is high.
Description
Technical field
The utility model relates generally to safety relief technical field, is specifically that a kind of safety relief for gas cylinder fills
It puts.
Background technology
Gas safety pressure relief device is used for gas pressure vessel, ensures the safe operation of pressure vessel, prevents superpressure
A kind of safety device, it is air tight when its performance is normal, during superpressure pressure release be vented, prevent gas pressure vessel from becoming because of superpressure
Shape causes pernicious major accident by destruction.Gas safety pressure relief device has fusible alloy plug device, blasting piece device, safety
The types such as valve, rupture disk-fusible alloy set composite, rupture disk-safety valve set composite.Wherein fusible alloy plug device is to use
It prevents from causing storage pressure is excessively high to be destroyed since temperature is excessively high under high-temperature work environment in solution.It mainly utilizes dress
Low-melting alloy in putting melts at a higher temperature, opening passage makes gas from the hole for the fusible alloy filled originally
Pressure of releasing is ejected, is used for gas cylinder, the automobile-use liquid of scope is very wide, such as low pressure toxic gas gas cylinder, fuel gas
Liquefied oil gas bottle, vehicle CNG gas cylinder, automobile-used hydrogen cylinder, long-tube trailer, bundled tube container etc. are respectively provided with easy fusing alloy plug dress
It puts.Wherein, vehicle CNG gas cylinder pressure is generally 20MPa and 25MPa, and then higher reaches 35MPa even to automobile-used hydrogen bottle pressure
70MPa, the fusible alloy in fusible alloy plug device work under hyperbaric environment for a long time, creep easily occur, normal
Fusible alloy is extruded gradually in operating temperature range causes gas to release, and influences the safe handling of gas cylinder.
Utility model content
To solve the deficiency of current technology, the utility model combination prior art from practical application, provides a kind of use
In the safe pressure relief device of gas cylinder, the present apparatus have the advantages that it is rational in infrastructure, be active in one's movements, security performance it is high.
To achieve the above object, the technical solution of the utility model is as follows：
A kind of safe pressure relief device for gas cylinder, including one end be equipped with venthole main body, can be in the master of main body
The valve slided in body mobile cavity, body side are equipped with gas vent, and body interior is equipped with to connect venthole and gas vent
Venting channels are equipped with pressure cap in the main body other end, and temperature-sensitive glass column, pressure relief device normal use are equipped between pressure cap and valve
When, temperature-sensitive glass column is pressed on valve, and valve closes venthole under temperature-sensitive glass column position-limiting action, and pressure relief device reaches
During pressure release condition, temperature-sensitive glass column releases the /V to valve after being bursting at the collision, valve moves under pressure effect at venthole will
Venthole is opened, and venthole is made to be connected by venting channels with gas vent.
The pressure cap is internally provided with pressure cap mobile cavity, and temperature-sensitive glass column is arranged in pressure cap mobile cavity, and pressure cap bottom is equipped with
Several run through the thermal hole of pressure cap mobile cavity.
The pressure cap outer wall passes through sealing ring II and seals by being threaded into main body.
The valve upper/lower terminal sets valve piston, big piston, big piston and the cooperation of pressure cap internal clearance respectively, big living
For abutting temperature-sensitive glass column, the valve piston and main body mobile cavity clearance fit, valve piston is used to close venthole for plug one end.
It is sealed between the big piston and pressure cap by sealing ring I, passes through sealing ring between valve piston and main body mobile cavity
III sealing.
Spring is arranged on the valve, after temperature-sensitive glass column is bursting at the collision, the spring is used to that valve to be aided in move.
The temperature-sensitive glass column outer layer is high strength glass, and inside is temperature-sensitive expanding liquid.
Intake interface is provided at the venthole of main body one end, being provided with exhaust at the gas vent of body side connects
Mouthful.
The beneficial effects of the utility model：
1st, the utility model using temperature-sensitive glass column as temperature-sensitive element, the setting of temperature-sensitive glass column can ensure more than
Phenomena such as not deformed under pressure and normal working temperature ensure that the airtight of safe pressure relief device under normal working temperature
Property, at the same when temperature is excessively high cause air pressure excessive when, temperature-sensitive glass column can ensure safe pressure relief device in setting after crushing
It is quickly acted under pressure release operating temperature.
2nd, the structure design of the utility model can ensure that temperature-sensitive glass column timely generates quick response to temperature change,
And be detachably connected between pressure cap and main body, convenient for the installation and replacement of temperature-sensitive glass column.
3rd, the utility model valve uses large and small plunger designs, and both ends are equipped with sealing ring, and safety device is provided with row
Gas interface ensure that the air-tightness at a temperature of safe pressure relief device normal work ring, and can guarantee safe pressure relief device by height
Gas is exported from exhaust port with conduit after temperature action, avoids the space that gas is directly emitted on around gas cylinder.
4th, the valve action of auxiliary internal, makes the present apparatus when the utility model acts on device pressure release using spring pre-tightening
Pressure release action is more sensitive.
Description of the drawings
Attached drawing 1 is the utility model general structure schematic diagram；
Attached drawing 2 is the utility model normal operating condition structure sectional view；
Attached drawing 3 is the utility model pressure release status architecture sectional view.
Label shown in attached drawing：1st, intake interface；2nd, venthole；3rd, main body mobile cavity；4th, main body；5th, venting channels；6、
Valve；7th, exhaust port；8th, gas vent；9th, spring；10th, pressure cap；11st, temperature-sensitive glass column；12nd, pressure cap mobile cavity；13rd, temperature-sensitive glass
Glass column support base I；14th, thermal hole；15th, big piston；16th, sealing ring I；17th, spring support seat II；18th, temperature-sensitive glass column supports
Seat II；19th, sealing ring II；20th, spring support seat I；21st, nonmetallic baffle ring；22nd, sealing ring III；23rd, valve piston.
Specific embodiment
With reference to the drawings and specific embodiments, the utility model is described in further detail.It is to be understood that these embodiments are only used for
Illustrate the utility model rather than limitation the scope of the utility model.In addition, it should also be understood that, reading the utility model instruction
Content after, those skilled in the art can make various changes or modifications the utility model, and such equivalent forms equally fall
In scope defined herein.
As shown in attached drawing 1,2,3,4 one end of main body of the utility model is equipped with to be connected with gas cylinder or high-pressure gas pipeline
Intake interface 1,4 other end of main body is equipped with the interface that be connected with pressure cap 10, is equipped among main body 4 and safety relief exhaust pipe company
The exhaust port 7 connect sets venthole 2 at intake interface 1, sets gas vent 8 at exhaust port 7, master is additionally provided in main body 4
Body mobile cavity 3, venting channels 5, venthole 2, main body mobile cavity 3, venting channels 5, gas vent 8 connect inside main body 4, main
Body 4 is internally provided with valve 6, and valve 6 can move up and down in the main body mobile cavity 3 in main body 4.
As described in attached drawing 2, when valve 6 is in upper state, 6 top of valve can close venthole 2, at this time intake interface
1 gas cannot be introduced into main body 4, and as shown in Figure 3, when valve 6 is in the next state, valve 6 beats venthole 2
It opens, the gas of intake interface 1 is discharged after can passing sequentially through venthole 2, venting channels 5, gas vent 8 through exhaust port 7 at this time.This
10 inside of pressure cap of utility model sets pressure cap mobile cavity 12, is connected through a screw thread between pressure cap 10 and main body 4, convenient for pressure cap 10
Dismounting, while sealed by sealing ring II, improve sealing effect.
12 bottom of pressure cap mobile cavity is provided with temperature-sensitive glass column support base I 13,6 bottom of valve is provided with temperature-sensitive glass
Column support base II 18 installs temperature-sensitive glass column 11 between valve 6 and pressure cap 10,11 outer layer of temperature-sensitive glass column is high strength glass,
Thermo-responsive expanding liquid is in inside, such as kerosene, alcohol.11 one end of temperature-sensitive glass column is pressed on the temperature-sensitive glass column branch of valve 6
It supports on seat II 18, one end is pressed on the temperature-sensitive glass column support base I 13 of pressure cap 10.Temperature-sensitive glass column 11 should disclosure satisfy that
It can play the role of effective support limit during normal use to valve 6, and after external temperature is increased to preset temperature, inside
Thermo-responsive expanding liquid should can expand after external glass is burst.Under normal operating condition, since 6 bottom of valve is supported
Temperature-sensitive glass column 11, therefore state of the valve 6 always in closure venthole 2 under the position-limiting action of temperature-sensitive glass column 11 are connect,
The position-limiting action to valve 6 can be only released after temperature-sensitive glass column 11 is bursting at the collision, at this time valve 6 can at venthole 2 high pressure
It is moved downward under gas effect, pressure release is carried out so as to open venthole 2.In the utility model, in order to ensure temperature-sensitive glass column
11 can timely respond to extraneous temperature change, and the utility model is circumferentially provided with several thermal holes in 10 bottom of pressure cap
14, thermal hole 14 is connected with pressure cap mobile cavity 12.
The valve 6 of the utility model uses large and small plunger designs, and upper/lower terminal sets valve piston 23, big piston respectively
15, big piston 15 and 10 internal clearance of pressure cap coordinate, to enable valve 6 in 10 internal slide of pressure cap, temperature-sensitive glass column branch
Support seat II 18 is arranged on big 15 end of piston, 3 clearance fit of valve piston 23 and main body mobile cavity, so that valve piston 23 being capable of main body
It is slided in mobile cavity 3, venthole 2 is made to close or open, the diameter at 6 middle part of valve is less than the internal diameter of venting channels 5, so as to gas
It being capable of the circulation in venting channels 5.It is sealed between the big piston 15 of the utility model and pressure cap 10 by sealing ring I 16, small work
It is aided with nonmetallic baffle ring 21 by sealing ring III 22 between plug 23 and main body mobile cavity 3 to seal.
Spring support seat I 20 is provided on 5 inner wall of venting channels of the utility model, bullet is equipped in big 15 one end of piston
Spring support base II 17,9 compressive deformation rear enclosure of spring on valve, mortgage respectively in spring support seat I 20 and spring supporting by both ends
On seat II 17, after temperature-sensitive glass column 11 is bursting at the collision, spring 9 can aid in valve 6 to move.
The utility model is in use, and intake interface 1 is connected with gas cylinder or high-pressure gas pipeline, exhaust port 7
It is connected with gas-guide tube, as shown in Figure 2, in the case of normal working temperature, the power that gases at high pressure generate directly is acted on through venthole 2
On the valve piston 23 of valve 6, the effect of the pressure of gas and the pre-pressing force of spring 9 compresses 11 one end of temperature-sensitive glass column
On the temperature-sensitive glass column support base II 18 of valve 6, one end is pressed on the temperature-sensitive glass column support base I 13 of pressure cap 10, due to
The support of temperature-sensitive glass column 11, valve piston 23 are seated in main body mobile cavity 3, block gases at high pressure, ensure normal work temperature
Air-tightness under degree.As shown in Figure 3, when environment temperature superelevation reaches the preset temperature of temperature-sensitive glass column 11, temperature passes through
Thermal hole 14 is quickly passed on temperature-sensitive glass column 11, the thermo-responsive expanding liquid rapid expanding inside temperature-sensitive glass column 11, will
The high strength glass of the outer layer of temperature-sensitive glass column 11 is burst, and under the using jointly of spring 9 and gas pressure, valve 6 is to pressure cap
10 bottoms are moved, and valve piston 23 separates with main body mobile cavity 3, gases at high pressure through main body mobile cavity 3, venting channels 5, gas vent 8,
Exhaust port 7 is discharged, so as to achieve the purpose that safety relief.
Claims (8)
1. a kind of safe pressure relief device for gas cylinder, including one end be equipped with venthole (2) main body (4), can be in main body
(4) valve (6) slided in main body mobile cavity (3), main body (4) one side are equipped with gas vent (8), it is characterised in that：Main body (4)
It is internally provided with to connect the venting channels (5) of venthole (2) and gas vent (8), the other end is equipped with pressure cap in main body (4)
(10), temperature-sensitive glass column (11), during pressure relief device normal use, temperature-sensitive glass column are equipped between pressure cap (10) and valve (6)
(11) it is pressed on valve (6), valve (6) closes venthole (2) under temperature-sensitive glass column (11) position-limiting action, pressure relief device
When reaching pressure release condition, temperature-sensitive glass column (11) releases the /V to valve (6) after being bursting at the collision, and valve (6) is pressed at venthole
Venthole (2) is opened in the lower movement of power effect, and venthole (2) is made to be connected by venting channels (5) with gas vent (8).
2. a kind of safe pressure relief device for gas cylinder as described in claim 1, it is characterised in that：The pressure cap (10)
Pressure cap mobile cavity (12) is internally provided with, temperature-sensitive glass column (11) is arranged in pressure cap mobile cavity (12), and pressure cap (10) bottom is equipped with
The thermal hole (14) of several connection pressure cap mobile cavities (12).
3. a kind of safe pressure relief device for gas cylinder as claimed in claim 2, it is characterised in that：The pressure cap (10)
Outer wall passes through sealing ring II (19) sealing by being threaded into main body (4).
4. a kind of safe pressure relief device for gas cylinder as claimed in claim 1 or 2, it is characterised in that：The valve
(6) upper/lower terminal sets valve piston (23), big piston (15), big piston (15) and the cooperation of pressure cap (10) internal clearance respectively, greatly
Piston (15) one end is used to abut temperature-sensitive glass column (11), the valve piston (23) and main body mobile cavity (3) clearance fit, small work
Plug (23) is used to close venthole (2).
5. a kind of safe pressure relief device for gas cylinder as claimed in claim 4, it is characterised in that：The big piston
(15) sealed between pressure cap (10) by sealing ring I (16), pass through sealing ring between valve piston (23) and main body mobile cavity (3)
III (22) seal.
6. a kind of safe pressure relief device for gas cylinder as described in claim 1, it is characterised in that：The valve (6)
On be arranged with spring (9), after temperature-sensitive glass column (11) is bursting at the collision, the spring (9) for aid in valve (6) move.
7. a kind of safe pressure relief device for gas cylinder as described in claim 1, it is characterised in that：The temperature-sensitive glass
Column (11) outer layer is high strength glass, and inside is temperature-sensitive expanding liquid.
8. a kind of safe pressure relief device for gas cylinder as described in claim 1, it is characterised in that：In main body (4) one
Intake interface (1) is provided at the venthole (2) at end, exhaust port (7) is provided at the gas vent (8) of main body (4) one side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721604486.5U CN207454847U (en) | 2017-11-24 | 2017-11-24 | A kind of safe pressure relief device for gas cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721604486.5U CN207454847U (en) | 2017-11-24 | 2017-11-24 | A kind of safe pressure relief device for gas cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207454847U true CN207454847U (en) | 2018-06-05 |
Family
ID=62277300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721604486.5U Active CN207454847U (en) | 2017-11-24 | 2017-11-24 | A kind of safe pressure relief device for gas cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207454847U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108916440A (en) * | 2018-09-19 | 2018-11-30 | 张家港富瑞阀门有限公司 | A kind of integrated cylinder valve of new fuel cell automobile high pressure hydrogen |
| CN109268683A (en) * | 2018-09-25 | 2019-01-25 | 苏州衣带保智能技术有限公司 | A kind of gas cylinder directional blasting means of deflation |
| CN109914958A (en) * | 2019-04-13 | 2019-06-21 | 郑州洪华建筑科技有限公司 | A kind of anti-failure Pneumatic window opener |
| WO2021057716A1 (en) * | 2019-09-26 | 2021-04-01 | 未势能源科技有限公司 | Thermally activated pressure relief valve |
| CN112984185A (en) * | 2019-12-16 | 2021-06-18 | 现代自动车株式会社 | Temperature pressure relief device |
| CN113833975A (en) * | 2020-06-23 | 2021-12-24 | 未势能源科技有限公司 | A vehicle that is used for gas bomb of vehicle and has it |
| CN117108577A (en) * | 2023-09-20 | 2023-11-24 | 新心医疗器械(北京)有限公司 | Self-driven circulating type pneumatic reversing valve |
-
2017
- 2017-11-24 CN CN201721604486.5U patent/CN207454847U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108916440A (en) * | 2018-09-19 | 2018-11-30 | 张家港富瑞阀门有限公司 | A kind of integrated cylinder valve of new fuel cell automobile high pressure hydrogen |
| CN109268683A (en) * | 2018-09-25 | 2019-01-25 | 苏州衣带保智能技术有限公司 | A kind of gas cylinder directional blasting means of deflation |
| CN109268683B (en) * | 2018-09-25 | 2024-03-08 | 苏州衣带保智能技术有限公司 | Directional blasting air bleeder of gas cylinder |
| CN109914958A (en) * | 2019-04-13 | 2019-06-21 | 郑州洪华建筑科技有限公司 | A kind of anti-failure Pneumatic window opener |
| CN109914958B (en) * | 2019-04-13 | 2020-09-04 | 郑州洪华建筑科技有限公司 | Failure-preventing pneumatic window opener |
| WO2021057716A1 (en) * | 2019-09-26 | 2021-04-01 | 未势能源科技有限公司 | Thermally activated pressure relief valve |
| CN112984185A (en) * | 2019-12-16 | 2021-06-18 | 现代自动车株式会社 | Temperature pressure relief device |
| CN113833975A (en) * | 2020-06-23 | 2021-12-24 | 未势能源科技有限公司 | A vehicle that is used for gas bomb of vehicle and has it |
| CN113833975B (en) * | 2020-06-23 | 2023-09-22 | 未势能源科技有限公司 | Gas storage bottle for vehicle and vehicle with gas storage bottle |
| CN117108577A (en) * | 2023-09-20 | 2023-11-24 | 新心医疗器械(北京)有限公司 | Self-driven circulating type pneumatic reversing valve |
| CN117108577B (en) * | 2023-09-20 | 2024-04-16 | 新心医疗器械(北京)有限公司 | Self-driven circulating type pneumatic reversing valve |
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