CN207545661U - A kind of gas generator structure for being used to assemble explosion suppression device - Google Patents
A kind of gas generator structure for being used to assemble explosion suppression device Download PDFInfo
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- CN207545661U CN207545661U CN201721518316.5U CN201721518316U CN207545661U CN 207545661 U CN207545661 U CN 207545661U CN 201721518316 U CN201721518316 U CN 201721518316U CN 207545661 U CN207545661 U CN 207545661U
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- gas
- explosion suppression
- gas generator
- suppression device
- cylinder
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Abstract
The utility model discloses a kind of for assembling the gas generator structure of explosion suppression device, belong to explosion suppression technical field.Gas generator structure includes aerogenesis unit, upper plug head, gas-conducting cells, lower end cap, aerogenesis unit cylinder one end is equipped with trigger element gland, the other end is assembled with explosion suppression device cavity interface thread, there is trigger element electric ignition medicine head wink to send out and prevent false triggering characteristic, gas-forming agent is loaded in tabletting form and with certain density gradient, filling porous metal foam in gas-conducting cells cylinder, the clear opening area ratio between gas-conducting cells wall surface through-hole and lower end cap bottom through-hole are 2:1.It ensure that datonation-inhibition medium injection promptness, prevent false triggering caused by environment stray electrical current；Gas production rate is improved, effectively controls the build-up of pressure process in explosion suppression device；It prevents gas-forming agent burning from splashing, extinguishes the issuable spark of gas generator, ensure essential safety；Optimize side, bottom outlet proportioning, the distribution of aerogenesis energy is more reasonable.
Description
Technical field
The utility model belongs to fuel gas, dust explosion suppression technology field, and in particular to one kind is datonation-inhibition for assembling
The gas generator structure of device, on explosion suppression devices, after gas generator triggering, moment generates a large amount of indifferent gas
Body driving inhibits medium quickly to be sprayed to the scene of the accident exploded.
Background technology
Gas, the dust/air mixture explosion accident of restricted clearance are happened at, serious casualties and wealth can be caused
Production loss.Explosion suppression technology refers to the early period of origination that explodes, and sprays (shedding) datonation-inhibition medium to explosive flame front, slows down, puts out
Flame of putting out a fire propagates process, to control explosion ill-effect.Passive Blast Suppression measure relies primarily on explosion wave and throws in itself
Datonation-inhibition medium is spilt, since its reliability, validity are constantly under suspicion, thus active explosion suppression technology increasingly causes pass
Note.So-called active explosion suppression refers to after detecting initial explosion signal, triggers explosion suppression device, datonation-inhibition medium is quickly sprayed, at certain
A little application scenarios will be as the explosion protection measure preferentially selected.
According to the difference of datonation-inhibition medium spray regime, active explosion restraining device or system can be divided into storage of higher pressures suppression again
Quick-fried device and normal pressure storage explosion suppression device.Such as the CN103252038A (dry-chemical fire extinguishings of the dry powder fire extinguishing agent storage tank of explosion suppression device
Agent discharges valve arrangement) a kind of storage of higher pressures explosion suppression device is described, for the rapidity for ensureing to start, dry powder is opened using powder squib
Channel between extinguishing chemical storage tank and dry powder injector, and the inherently potential danger source of powder squib, and the datonation-inhibition medium of powder
The long-term storage that is pressurized will cause to reunite, lump, and influence explosion suppression effect.Normal pressure storage explosion suppression device mainly utilizes gas
Agent instancy of combustion generates a large amount of inert gases, and explosion suppression device cavity is made to gather the pressure for rising to several megapascal by normal pressure after cooling, from
And spray datonation-inhibition medium.Since explosion suppression device is under non-toggle state, inside is normal pressure, thus convenient for safeguarding, explosion suppression device is more
Step up to gather.
Explosion suppression devices are assembled about using gas generator, there is certain report in published Chinese patent literature
Road, typically having CN101940825A (a kind of oil gas explosion suppression method in restricted space), CN102230389A, (dust explosion presses down
Device processed), above-mentioned document refers to the concept of gas generator, but lacks further details description.More typically have
CN103055450A (a kind of self start type explosion suppression devices), it is more detailed to describe gas generation combustion chamber structure, but
Gas-forming agent uses cordite, and gunpowder is not sealed processing, no cooling measure, the fireball generated after ignition with
High temperature inherently danger source, more seriously, the energy that gas generator generates fail effectively to be distributed, particular condition
Under, the datonation-inhibition medium of the powder filled in explosion suppression device sintering curing under high temperature action will be made, can not be sprayed, thus have further
Improved necessity.
In consideration of it, the applicant has made beneficial exploration with actually attempting to, technical solution described below be
It is generated under this background.
Utility model content
The task of the utility model is to provide a kind of gas generator structure for being used to assemble explosion suppression device, improves and occur
The transient state trigger characteristic of device reduces false triggering rate, carries out necessary cooling to aerogenesis high temperature, improves the aerogenesis energy method of salary distribution,
So as to improve the reliability of explosion suppression device and timely and effective property.
What the task of the utility model was performed by, it is a kind of for assembling the gas generator structure of explosion suppression device,
The explosion suppression device includes flanged (FLGD) cavity, and the internal thread interface for installation gas generator is equipped at the top of the cavity, and
The lower part of cavity is datonation-inhibition medium storage chamber, and flanged joint is used between datonation-inhibition medium storage chamber and datonation-inhibition medium kuppe, on
Positive arch metallic membrane is clamped by fixture between lower flange, flange is fastened using studs.It is characterized in that the gas
Body generator architecture includes aerogenesis unit, upper plug head, gas-conducting cells, lower end cap, and cylinder one end of aerogenesis unit is threadably
Assembling structure has trigger element gland, and the other end of trigger element gland at the top of cavity for the internal thread of installation gas generator with connecing
The mating of mouthful screw thread, trigger element gland centre are equipped with counterbore, and electric ignition medicine head is in interference fit in counterbore, the porous knot of wall surface
The medicine head protective cover of structure is Nian Jie with trigger element gland inner bottom surface, and gas-forming agent is filled in the cylinder of aerogenesis unit, upper stifled
The threaded one end of head and cylinder back to the trigger element gland of the aerogenesis unit is coupled, and the separation layer of the upper plug head is set
Have a porous gasket, the separation layer of upper plug head is furnished with the circular hole of Kong Weiyu porous gaskets coincidence, the top of the gas-conducting cells with it is upper
Plug lower part is is threadedly coupled, and filling porous metal foam, gas-conducting cells top half wall surface uniformly lead in gas-conducting cells cylinder
Stomata, lower end cap are to be threadedly coupled backwards to one end of upper plug head with the gas-conducting cells, and the bottom surface of the lower end cap is uniformly ventilated
Hole.
The point of amorce causes for electricity sends out element wink, under the conditions of voltage 24V, when electric current is more than 100mA, is delayed after energization
Available point fires gas-forming agent in time no more than 2ms, and electric current, which is less than 20mA, can not then trigger.
Further, the gas-forming agent is tabletting form, is loaded in the cylinder in certain density gradient.
Further, the porous metal foam is almag, which is 0.05mm, width by thickness
The processed molding cellular material of band-like foil of 100mm, each honeycomb is height 1.25mm, positive six face of length of side 5mm is empty
Stem body, guard space press nominal density 35kg/m3After filling, the net volume loss late for being filled with space is 1.2%-1.4%.
Further, the gas-conducting cells top half wall surface is evenly distributed with the bottom surface of venthole and the lower end cap and uniformly leads to
Clear opening area ratio between stomata is 2:1.
Further, all thread joint faces are coated with high-intensity sealing glue.
Compared with prior art, technical solution provided by the utility model has the advantages that：
1. gas generator electric match sends out element for wink, overcome Time delay, ensure that the injection of datonation-inhibition medium and
Shi Xing cannot be triggered under low current conditions, effectively prevent false triggering caused by environment stray electrical current.
2. gas-forming agent is tabletting form, is compared compared with granular media ground-state gas propellant, gas production rate is improved, by changing
Become gas-forming agent degree of packing gradient, effectively control the build-up of pressure process in explosion suppression device.
3. aerogenesis unit is separated with gas-conducting cells, gas-forming agent burning is further prevented to splash, is equipped in gas-conducting cells
Reticulated foam alloy extinguishes the issuable spark of gas generator, while ensureing essential safety, is unlikely to flow gas
Cause big obstruction.
4. gas-conducting cells top half wall surface be evenly distributed with venthole and the lower end cap bottom surface be evenly distributed with it is net between venthole
Hole area ratio is 2:1, for more other ratios, the distribution of aerogenesis energy is more reasonable.
Description of the drawings
Fig. 1 is a kind of sectional view for the gas generator structure for being used to assemble explosion suppression device of the utility model；
Fig. 2 is a kind of decomposition diagram for the gas generator structure for being used to assemble explosion suppression device of the utility model；
Fig. 3 is the explosion suppression device application example assembled using the utility model.
Specific embodiment
For patent examination personnel and the public is enable the technical essence of the utility model to be more clearly understood and beneficial to effect
Fruit, applicant by way of examples elaborate to the utility model.
As shown in figure 3, explosion suppression device includes flanged (FLGD) cavity 1, which is equipped with for installation gas generator
Internal thread interface 11, and between the datonation-inhibition medium storage chamber 12 in the lower part of cavity 1 and datonation-inhibition medium kuppe 6 using flange 121,
124 connect, and positive arch metallic membrane 123 is clamped by fixture 122 between upper lower flange, and flange 121,124 uses studs
125 fastenings.
As shown in Figure 1 and Figure 2, above mentioned one kind as the utility model technical essential is used to assemble explosion suppression device
Gas generator structure, including aerogenesis unit 2, upper plug head 3, gas-conducting cells 4, lower end cap 5, the cylinder 21 of aerogenesis unit 2 is
45 × 3.6mm seamless steel pipes, height 80mm, the upper end of cylinder 21, which threadably assembles structure, trigger element gland (211), spiral shell
Line specification is M36 × 1.5, and the other end of trigger element gland 211 connects with 1 top of cavity for the internal thread of installation gas generator
Mouth 11 screw threads mating, screw thread specification are M36 × 1.5, and 211 centre of trigger element gland is equipped with counterbore 2111, electric ignition medicine
First 212 in interference fit in counterbore 2111, medicine head protective cover 213 and 211 inner bottom surface of trigger element gland of wall surface porous structure
Bonding, gas-forming agent 214 are filled in the cylinder 21 of aerogenesis unit 2, and gas-forming agent is pressed into diameter 2mm, thickness 1mm through being granulated
Sheet, fill density in 20% cumulative；The cylinder 21 of upper plug head 3 and aerogenesis unit 2 is back to the one of trigger element gland 211
Screw thread mating is held, the separation layer 31 of upper plug head 3 is equipped with porous gasket 311, is evenly distributed with for 12 diameter 4mm holes, the isolation of upper plug head 3
Layer 31 be furnished with Kong Weiyu porous gaskets 311 coincidence circular hole 312, gas-conducting cells 4 be 45 × 3.6 × 140mm seamless steel pipes, air guide
With 3 lower part of upper plug head to be threadedly coupled, screw thread specification is M36 × 1.5, is filled in 4 cylinder of gas-conducting cells porous on the top of unit 4
Metal foam 41,4 top half wall surface of gas-conducting cells are evenly distributed with venthole 42, and lower end cap 5 is with gas-conducting cells 4 backwards to upper plug head 3
To be threadedly coupled, the bottom surface of lower end cap 5 is evenly distributed with venthole 51 for one end.
Aforementioned electric ignition medicine head 212 causes for electricity sends out element wink, under the conditions of voltage 24V, when electric current is more than 100mA, is powered
Available point combustion gas-forming agent in time of the delay no more than 2ms afterwards, electric current, which is less than 20mA, can not then trigger.
As a preferred option, gas-forming agent 214 is tabletting form, is filled out in cylinder 21 in certain density gradient
Dress.
Previous porous metal foam 41 by thickness for 0.05mm, width 100mm the processed molding honeycomb of band-like foil
Shape material, each honeycomb is height 1.25mm, the positive six face hollow cylinder of length of side 5mm, and nominal density 35kg/ is pressed by guard space
m3After filling, the net volume loss late for being filled with space is 1.2%-1.4%.
As a preferred option, 4 top half wall surface of gas-conducting cells is evenly distributed with venthole 42 and the bottom surface of institute lower end cap 5 is evenly distributed with
Clear opening area ratio between venthole 51 is 2:1.
Aforementioned all thread joint faces are coated with high-intensity sealing glue.
The operation principle of the utility model is as follows：
After explosion suppression control system detects initial explosion signal, gas generator electric firing is given by execution unit
Head is powered, and the burning of gas-forming agent moment generates a large amount of nitrogen, and the high temperature nitrogen that may carry open fire is inhaled through porous foam alloy
It after heat drop temperature, is on the one hand discharged by gas-guide tube side opening so that explosion suppression device cavity moment gathers pressure, while by the powder of sedimentation state
The datonation-inhibition medium elevator of body forms the mixture of high pressure nitrogen/datonation-inhibition medium, and another aspect high pressure nitrogen is rushed by lower end cap bottom outlet
Unlatching diaphragm is hit, high pressure nitrogen/datonation-inhibition medium mixture is caused to be sprayed at a terrific speed to the space exploded so that quick-fried
It is fried to be inhibited.
Since electric match is wink hair, injection delay is greatly shortened, while can be missed caused by environment resistant stray electrical current
Triggering, high temperature nitrogen are cooled down through foamed alloy, effectively extinguish the open fire that gas-forming agent burning generates, lateral/bottom outlet of optimization
Area ratio so that metallic membrane relies primarily on impact force unlatching, further improves the transient response of datonation-inhibition medium injection.
In conclusion technical solution provided by the utility model overcomes the shortcoming of prior art, utility model is completed
Task has objectively fulfilled the advantageous effects that applicant lists.
Claims (6)
1. a kind of for assembling the gas generator structure of explosion suppression device, the explosion suppression device includes flanged (FLGD) cavity (1),
The internal thread interface (11) for installation gas generator is equipped at the top of the cavity (1), and the lower part of cavity (1) is stored up for datonation-inhibition medium
Chamber (12) is deposited, is connect between the datonation-inhibition medium storage chamber (12) and datonation-inhibition medium kuppe (6) using flange (121), (124),
Positive arch metallic membrane (123) is clamped by fixture (122) between upper lower flange, flange (121), (124) are using studs
(125) it fastens, it is characterised in that the gas generator structure includes aerogenesis unit (2), upper plug head (3), gas-conducting cells
(4), lower end cap (5), cylinder (21) one end of aerogenesis unit (2), which threadably assembles structure, trigger element gland (211), touches
The other end of element gland (211) is sent out with being coupled at the top of cavity (1) for internal thread interface (11) screw thread of installation gas generator,
Trigger element gland (211) centre is equipped with counterbore (2111), and electric ignition medicine head (212) is in interference fit with counterbore (2111)
Interior, the medicine head protective cover (213) of wall surface porous structure is Nian Jie with trigger element gland (211) inner bottom surface, gas-forming agent (214)
It is filled in the cylinder (21) of aerogenesis unit (2), upper plug head (3) and the cylinder (21) of the aerogenesis unit (2) are touched back to described
The threaded one end mating of element gland (211) is sent out, the separation layer (31) of the upper plug head (3) is upper stifled equipped with porous gasket (311)
The separation layer (31) of head (3) is furnished with the circular hole (312) of Kong Weiyu porous gaskets (311) coincidence, the top of the gas-conducting cells (4)
With upper plug head (3) lower part to be threadedly coupled, porous metal foam (41) is filled in gas-conducting cells (4) cylinder, on gas-conducting cells (4)
Half part wall surface is evenly distributed with venthole (42), and lower end cap (5) is screw thread backwards to one end of upper plug head (3) with the gas-conducting cells (4)
Connection, the bottom surface of the lower end cap (5) is evenly distributed with venthole (51).
2. a kind of gas generator structure for being used to assemble explosion suppression device according to claim 1, it is characterised in that described
Electric ignition medicine head (212) causes for electricity sends out element wink, under the conditions of voltage 24V, when electric current is more than 100mA, is delayed and does not surpass after energization
It crosses available point in the time of 2ms and fires gas-forming agent, electric current, which is less than 20mA, can not then trigger.
3. a kind of gas generator structure for being used to assemble explosion suppression device according to claim 1, it is characterised in that described
Gas-forming agent (214) is tabletting form, is loaded in the cylinder (21) in certain density gradient.
4. a kind of gas generator structure for being used to assemble explosion suppression device according to claim 1, it is characterised in that described
Porous metal foam (41) be almag, the metal foam (41) by thickness for 0.05mm, width 100mm band-like foil pass through
The cellular material of machine-shaping, each honeycomb is height 1.25mm, the positive six face hollow cylinder of length of side 5mm, by guard space
By nominal density 35kg/m3After filling, the net volume loss late for being filled with space is 1.2%-1.4%.
5. a kind of gas generator structure for being used to assemble explosion suppression device according to claim 1, it is characterised in that described
Gas-conducting cells (4) top half wall surface be evenly distributed with venthole (42) and the lower end cap (5) bottom surface be evenly distributed with venthole (51) it
Between clear opening area ratio be 2:1.
6. a kind of gas generator structure for being used to assemble explosion suppression device according to claim 1, it is characterised in that all
Thread joint face is coated with high-intensity sealing glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721518316.5U CN207545661U (en) | 2017-11-15 | 2017-11-15 | A kind of gas generator structure for being used to assemble explosion suppression device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721518316.5U CN207545661U (en) | 2017-11-15 | 2017-11-15 | A kind of gas generator structure for being used to assemble explosion suppression device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207545661U true CN207545661U (en) | 2018-06-29 |
Family
ID=62681367
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721518316.5U Expired - Fee Related CN207545661U (en) | 2017-11-15 | 2017-11-15 | A kind of gas generator structure for being used to assemble explosion suppression device |
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| Country | Link |
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| CN (1) | CN207545661U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU210860U1 (en) * | 2021-12-17 | 2022-05-11 | Общество с ограниченной ответственностью "ПироХимика" | Impulse device for the release of a fluid fire extinguishing agent under pressure in a sealed container |
| CN114811438A (en) * | 2022-04-24 | 2022-07-29 | 北京理工大学 | Interdiction type comprehensive explosion-proof and explosion-suppression system and method |
-
2017
- 2017-11-15 CN CN201721518316.5U patent/CN207545661U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU210860U1 (en) * | 2021-12-17 | 2022-05-11 | Общество с ограниченной ответственностью "ПироХимика" | Impulse device for the release of a fluid fire extinguishing agent under pressure in a sealed container |
| CN114811438A (en) * | 2022-04-24 | 2022-07-29 | 北京理工大学 | Interdiction type comprehensive explosion-proof and explosion-suppression system and method |
| CN114811438B (en) * | 2022-04-24 | 2023-05-09 | 北京理工大学 | Interruption type comprehensive explosion-proof explosion suppression system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180629 Termination date: 20181115 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |