CN107725099B - Active inert gas foam metal explosion suppression and explosion suppression device - Google Patents
Active inert gas foam metal explosion suppression and explosion suppression device Download PDFInfo
- Publication number
- CN107725099B CN107725099B CN201711177614.7A CN201711177614A CN107725099B CN 107725099 B CN107725099 B CN 107725099B CN 201711177614 A CN201711177614 A CN 201711177614A CN 107725099 B CN107725099 B CN 107725099B
- Authority
- CN
- China
- Prior art keywords
- explosion
- explosion suppression
- suppression
- foam metal
- flame
- 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.)
- Active
Links
- 238000004880 explosion Methods 0.000 title claims abstract description 95
- 230000001629 suppression Effects 0.000 title claims abstract description 81
- 239000006260 foam Substances 0.000 title claims abstract description 39
- 239000002184 metal Substances 0.000 title claims abstract description 39
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 39
- 239000011261 inert gas Substances 0.000 title claims abstract description 16
- 238000009434 installation Methods 0.000 claims abstract description 22
- 239000007789 gas Substances 0.000 claims description 23
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 16
- 229910052802 copper Inorganic materials 0.000 claims description 14
- 239000010949 copper Substances 0.000 claims description 14
- 239000002360 explosive Substances 0.000 claims description 11
- 239000004033 plastic Substances 0.000 claims description 10
- 239000003063 flame retardant Substances 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 230000000977 initiatory effect Effects 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 7
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 5
- 238000002955 isolation Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000000171 quenching effect Effects 0.000 abstract description 2
- 239000011148 porous material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 239000003595 mist Substances 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Casings For Electric Apparatus (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention discloses an active inert gas porous material explosion suppression and explosion suppression device, which comprises: the explosion suppression and explosion suppression device comprises a detector, a control unit, a power supply and an explosion suppression and explosion suppression unit, wherein a square installation pipeline is welded and fixed with a round pipeline, an installation rectangular hole is formed in the upper portion of the square installation pipeline, the explosion suppression and explosion suppression unit is installed in the rectangular hole of the square installation pipeline, the detectors are installed on the square installation pipeline on two sides of the explosion suppression and explosion suppression unit, the detectors are connected with the control unit through signal lines, the power supply is respectively connected with the explosion suppression and explosion suppression unit and the control unit through lines to supply power to the explosion suppression and explosion suppression unit, and the control unit is connected with the explosion suppression and explosion suppression unit through the signal lines. The explosion characteristics can be actively detected during explosion, and the explosion propagation is restrained by adopting the double measures of inert gas and foam metal, so that the explosion flame has quenching effect, the explosion pressure can be effectively restrained, the damage to related facilities is reduced, more importantly, the device has long maintenance period when no explosion occurs, and the labor cost is reduced.
Description
Technical Field
The invention relates to an explosion suppression and explosion suppression device, in particular to an active inert gas foam metal explosion suppression and explosion suppression device.
Background
In the industrial production process, the explosion accident seriously threatens the life safety of workers. With the increase of mining depth and intensity of mines, gas threats are also increasing, and gas explosion becomes a great problem for safe and efficient production of coal mines. In particular, secondary disasters can be caused by multiple explosions of the gas, and the accidents are expanded. In the coal mine gas extraction process, the explosion-proof device of the gas conveying pipeline becomes an important measure for inhibiting the explosion from spreading underground and underground. The good explosion suppression effect can prevent the explosion flame wave from continuing to spread, lighten the explosion hazard and the secondary property, and has important significance for protecting the life safety of coal mine workers, lightening the property loss and quick emergency rescue.
The explosion-proof device of the explosive gas conveying pipeline such as the gas used at present comprises two kinds of devices: one is to actively add fine water mist into a conveying pipeline, reduce the oxygen content in the pipeline, form a water mist protection area, and the like, and prevent explosion; a passive explosion suppression and flame isolation device is arranged in a pipeline, such as a copper wire mesh and a flame arrester, when explosion occurs, flame is cut by the porous copper wire mesh and the flame arrester to achieve the purpose of explosion suppression when flame passes through the explosion suppression and flame isolation device. The first method has higher safety, but needs to spray into the pipeline in the early stage, needs to carry out dehydration operation in the later stage, and has a complex procedure. The second method is simple and easy to implement, but has a blocking effect on the conveying gas, has larger resistance loss and higher cost in the conveying process, and sometimes causes poor explosion suppression effect due to the cohesive force characteristic of flame waves, and is unfavorable for possible secondary explosion defense.
Disclosure of Invention
The invention overcomes the defects of the prior art and provides the active inert gas foam metal explosion suppression and explosion suppression device.
The technical scheme of the invention is as follows:
an active inert gas foam metal explosion suppression and flame suppression device, comprising: the explosion suppression and explosion suppression device comprises a detector, a control unit, a power supply, square mounting pipelines, round pipelines and explosion suppression units, wherein the square mounting pipelines are embedded in the round pipelines, the square mounting pipelines are fixed with the round pipelines through flanges, rectangular mounting holes are formed in the upper parts of the square mounting pipelines, the explosion suppression and explosion suppression units are mounted in the rectangular holes of the square mounting pipelines, the detectors are mounted on the square mounting pipelines on two sides of the explosion suppression and explosion suppression units, and the detectors are connected with the control unit through signal wires;
the power supply is respectively connected with the explosion suppression and flame-proof unit and the control unit through lines to supply power to the explosion suppression and flame-proof unit and the control unit;
the control unit is connected with the explosion suppression and flame-proof unit through a signal line.
Further, the explosion suppression and flame suppression unit comprises: go up casing, ignition trigger, initiating explosive layer, gas generant layer, filter, copper explosion-proof plate, foam metal plate, lower casing, flange, bolt, fire-retardant fragile plastic plate, sealed pad, spacing baffle and rubber blotter, the lower casing is hollow structure, and both ends all are provided with the ring flange about the lower casing, and the lower ring flange of lower casing passes through the bolt to be installed on the pipe wall of square installation pipeline, and the installation rectangular hole of square installation pipeline corresponds with the cavity position of lower casing, and go up the casing bottom and be provided with the ring flange, go up the casing lower ring flange and link to each other through the bolt with lower casing upper ring flange, ignition trigger fixes on last casing upper end inner wall, ignition trigger lower extreme cover is equipped with the initiating explosive layer, is provided with gas generant layer lower extreme in the last casing cavity, and the filter lower extreme is provided with the filter, and the filter lower extreme is provided with copper explosion-proof plate, and copper explosion-proof plate lower extreme is provided with foam metal plate, and the cover is equipped with the copper layer all around the foam metal plate, is provided with explosion-proof clearance between foam metal plate and the lower casing, and the foam metal plate lower extreme is provided with fire-retardant fragile plastic plate, and fire-retardant fragile plastic plate is fixed on the upper end inner wall of upper casing, and lower both sides of the installation rubber pipeline are provided with the cushion.
Further, the detector is a pressure sensor.
Further, the control unit is a stm32 series singlechip.
Further, the assembly clearance between the foam metal plate and the lower shell is 1-10mm.
Further, a sealing gasket is arranged between the lower flange plate of the lower shell and the wall of the lower shell.
Further, a sealing gasket is arranged between the lower flange plate of the upper shell and the upper flange plate of the lower shell.
The invention has the following beneficial effects on the prior art: after the active inert gas foam metal explosion suppression and flame suppression device is arranged in an explosive gas conveying pipeline, the gas flow resistance in the pipeline is small, and the conveying energy is saved. The explosion characteristics can be actively detected during explosion, and the explosion propagation is restrained by adopting the double measures of inert gas and foam metal, so that the explosion flame has quenching effect, the explosion pressure can be effectively restrained, and the damage to related facilities is reduced. More importantly, the device has long maintenance period when no explosion occurs, and reduces the labor cost. If foam metal is damaged less after explosion, the foam metal can be reused, and the enterprise cost is reduced.
Drawings
FIG. 1 is a schematic view of the installation of the present invention;
FIG. 2 is a schematic diagram of the invention prior to operation;
fig. 3 is a schematic view of the structure of the present invention after operation.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
An active inert gas foam metal explosion suppression and flame suppression device, comprising: the explosion suppression and explosion suppression device comprises a detector 6, a control unit 8, a power supply 9, square mounting pipelines 15, round pipelines 21 and explosion suppression units 10, wherein the square mounting pipelines 15 are embedded in the round pipelines 21, the square mounting pipelines 15 and the round pipelines 21 are fixed through flanges, mounting rectangular holes are formed in the upper parts of the square mounting pipelines 15, the explosion suppression and explosion suppression units 10 are mounted in the rectangular holes of the square mounting pipelines 15, the detectors 6 are mounted on the square mounting pipelines 15 on two sides of the explosion suppression and explosion suppression units 10, the detectors 6 are connected with the control unit 8 through signal lines, and the single-side linear distance of the detectors 6 is 20-30 m;
the power supply 9 is respectively connected with the explosion suppression and flame-proof unit 10 and the control unit 8 through lines to supply power to the explosion suppression and flame-proof unit 10 and the control unit 8;
the control unit 8 is connected with the explosion suppression and flame isolation unit 10 through a signal line.
Further, the explosion suppression and suppression unit 10 includes: the ignition trigger device comprises an upper shell 18, an ignition trigger device 11, an initiating explosive layer 12, a gas generating agent layer 14, a filter plate 16, a copper explosion-proof plate 17, a foam metal plate 19, a lower shell, a flange, bolts, flame-retardant fragile plastic plates 20, a sealing gasket, a limiting partition plate 22 and a rubber buffer cushion 23, wherein the lower shell is of a hollow structure, the upper end and the lower end of the lower shell are respectively provided with a flange plate, the lower flange plate of the lower shell is installed on the pipe wall of a square installation pipeline 15 through bolts, an installation rectangular hole of the square installation pipeline 15 corresponds to the position of a cavity of the lower shell, the bottom end of the upper shell 18 is provided with a flange plate, the lower flange plate of the upper shell 18 is connected with the upper flange plate of the lower shell through bolts, the ignition trigger device 11 is fixed on the inner wall of the upper end of the upper shell 18, the lower end of the ignition trigger device 11 is sleeved with the initiating explosive layer 12, the inner cavity of the upper shell 18 is provided with the gas generating agent layer 14, the lower end of the gas generating agent layer 14 is provided with the filter plate 16, the lower end of the filter plate 16 is provided with the copper explosion-proof plate 17, the lower end of the copper explosion-proof plate 17 is provided with the foam metal plate 19, the foam metal plate 19 is sleeved with the foam metal plate 20, the two sides of the flame-retardant fragile plastic plates 20 are respectively arranged around the foam metal plate 19, the foam metal plate 19 are respectively, and the two ends are arranged between the two sides of the explosion-retardant plastic plates 20 and the explosion-proof plate 20 are arranged.
The detector 6 is a pressure sensor.
The control unit 8 is a stm32 series singlechip.
The assembly gap between the foam metal plate 19 and the lower shell is 1-10mm.
And a sealing gasket is arranged between the lower flange plate of the lower shell and the wall of the lower shell.
A gasket is disposed between the lower flange of the upper housing 18 and the upper flange of the lower housing.
The ignition electrode of the ignition trigger 11 is integrated with the explosion-proof housing 13, and the explosion-proof pressure is 30MPa. The ignition electrode of the ignition trigger 11 protrudes into the primary explosive layer 12. A gas generating agent 14 is placed in the explosion-proof housing 13. The lower part of the gas generant layer 14 is a filter plate 16. The primary charge layer 12 is first placed around the ignition trigger 11 and then the gas generant layer 14 is filled within the flameproof housing 13. The foam metal plate 19, the upper portion of the foam metal plate 19 is a copper explosion-proof plate 17. The assembly gap between the copper explosion-proof plate 17 and the explosion-proof housing 18 is not more than 10mm, or the copper explosion-proof plate is tightly contacted with the copper explosion-proof plate, but can move under the impact of air flow. A flame-retardant fragile plastic plate 20 is mounted on the lower portion of the foam metal plate 19. When gas explosion occurs, explosion flame and shock waves propagate along the explosion propagation direction 4 in the circular pipeline 21, when the front shock wave 2 and the flame front 3 are close to the detector 6, information acquired by the detector 6 is transmitted to the control unit 8, the control unit 8 generates a certain intensity current to trigger the ignition triggering device 11, at the moment, the ignition triggering device 11 detonates the initiating explosive layer 12, the initiating explosive layer 12 ignites the gas generating agent 14 to generate a large amount of inert gas, the inert gas pushes the copper explosion-proof plate 17 and the foam metal plate 19 to rapidly move to the bottom of the pipeline, and the upper edge of the foam metal plate 19 exceeds the upper edge 23 of the pipeline by at least 10cm to form an explosion-proof isolation belt.
Claims (4)
1. An active inert gas foam metal explosion suppression and flame suppression device, comprising: the explosion suppression and explosion suppression device is characterized in that the square installation pipeline (15) is embedded on the round pipeline (21), the square installation pipeline (15) is fixed with the round pipeline (21) through a flange, an installation rectangular hole is formed in the upper portion of the square installation pipeline (15), the explosion suppression and explosion suppression unit (10) is installed in the rectangular hole of the square installation pipeline (15), the detectors (6) are installed on the square installation pipelines (15) on two sides of the explosion suppression and explosion suppression unit (10), and the detectors (6) are connected with the control unit (8) through signal lines;
the power supply (9) is respectively connected with the explosion suppression and flame suppression unit (10) and the control unit (8) through circuits to supply power to the explosion suppression and flame suppression unit;
the control unit (8) is connected with the explosion suppression and flame-proof unit (10) through a signal line;
the explosion suppression and isolation unit (10) comprises: the upper shell (18), ignition trigger device (11), initiating explosive layer (12), gas generating agent layer (14), filter plate (16), copper explosion-proof plate (17), foam metal plate (19), lower shell, flange, bolt, fire-retardant fragile plastic plate (20), sealing gasket, spacing baffle (22) and rubber buffer pad (23), lower shell is hollow structure, both ends all are provided with the ring flange about the lower shell, the lower ring flange of lower shell passes through the bolt mounting on the pipe wall of square mounting pipeline (15), and the installation rectangular hole of square mounting pipeline (15) corresponds with the cavity position of lower shell, upper shell (18) bottom is provided with the ring flange, upper shell (18) lower ring flange passes through the bolt with lower shell upper ring flange and links to each other, ignition trigger device (11) are fixed on upper end inner wall of upper shell (18), ignition trigger device (11) lower pot head is equipped with initiating explosive layer (12), be provided with gas generating agent layer (14) in upper shell cavity, gas generating agent layer (14) lower extreme is provided with (16), filter plate (16) lower extreme is provided with copper explosion-proof plate (17), foam metal plate (19) are equipped with between explosion-proof plate and the foam metal plate (19) is equipped with, foam metal plate (19) explosion-proof plate (19) are equipped with, the lower end of the foam metal plate (19) is provided with a flame-retardant fragile plastic plate (20), two ends of the flame-retardant fragile plastic plate (20) are fixed on the lower shell, a rubber buffer pad (23) is arranged right below an installation rectangular hole of the square installation pipeline (15), and two sides of the rubber buffer pad (23) are provided with limiting separation plates (22);
the detector (6) is a pressure sensor;
the control unit (8) is a stm32 series singlechip.
2. An active inert gas foam metal explosion suppression and flame suppression device according to claim 1, wherein an assembly gap between the foam metal plate (19) and the lower shell is 1-10mm.
3. The active inert gas foam metal explosion suppression and flame suppression device according to claim 1, wherein a sealing gasket is arranged between the lower flange plate of the lower shell and the wall of the lower shell.
4. The active inert gas foam metal explosion suppression and flame suppression device according to claim 1, wherein a sealing gasket is arranged between the lower flange of the upper shell (18) and the upper flange of the lower shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711177614.7A CN107725099B (en) | 2017-11-23 | 2017-11-23 | Active inert gas foam metal explosion suppression and explosion suppression device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711177614.7A CN107725099B (en) | 2017-11-23 | 2017-11-23 | Active inert gas foam metal explosion suppression and explosion suppression device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107725099A CN107725099A (en) | 2018-02-23 |
| CN107725099B true CN107725099B (en) | 2023-11-28 |
Family
ID=61218861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711177614.7A Active CN107725099B (en) | 2017-11-23 | 2017-11-23 | Active inert gas foam metal explosion suppression and explosion suppression device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107725099B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110848439A (en) * | 2019-12-13 | 2020-02-28 | 汇乐因斯福环保安全研究院（苏州）有限公司 | Active bidirectional explosion-proof quick gate valve and quick explosion-proof method |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5224550A (en) * | 1987-03-11 | 1993-07-06 | Parker Hannifin Corporation | Explosion suppression system |
| RU2070967C1 (en) * | 1993-03-25 | 1996-12-27 | Центральный научно-исследовательский институт химии и механики | Device for suppression of explosion |
| WO2000072922A1 (en) * | 1999-05-28 | 2000-12-07 | Kidde-Graviner Limited | Fire extinguishing and explosion suppression arrangements and methods |
| CN1775597A (en) * | 1996-04-08 | 2006-05-24 | 大赛璐化学工业株式会社 | Method for controlling gas flow from gas generator to gas bag and airbag inflator |
| CN101440712A (en) * | 2008-11-24 | 2009-05-27 | 杜志刚 | Mounting use method of downhole laneway coal dust gas explosion blocking machine |
| CN103790622A (en) * | 2014-01-21 | 2014-05-14 | 中国矿业大学 | Method for active explosion proofing and explosion suppression through high-pressure inert gas |
| CN204041099U (en) * | 2014-06-05 | 2014-12-24 | 陕西久泰矿业设备有限公司 | Pipeline type fine water-spray gas and coal dust destatics inerting explosion suppression device |
| CN104315935A (en) * | 2014-10-11 | 2015-01-28 | 上海应用技术学院 | Automatic explosion suppressing device applicable to dust explosion in pipeline |
| CN204188088U (en) * | 2014-10-11 | 2015-03-04 | 上海应用技术学院 | Dust explosion self-action explosion suppression device in pipeline |
| CN106422120A (en) * | 2016-11-17 | 2017-02-22 | 中国计量大学 | Industrial pipeline combustible gas explosion inhibiting device and triggering method thereof |
| CN106706706A (en) * | 2017-02-14 | 2017-05-24 | 中国矿业大学 | Explosion suppression experimental system and explosion suppression experimental method for gas extraction pipeline coupled by CO2 and vacuum cavity |
| CN207554098U (en) * | 2017-11-23 | 2018-06-29 | 黑龙江科技大学 | A kind of datonation-inhibition explosion isolation device of active noble gas foam metal |
-
2017
- 2017-11-23 CN CN201711177614.7A patent/CN107725099B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5224550A (en) * | 1987-03-11 | 1993-07-06 | Parker Hannifin Corporation | Explosion suppression system |
| RU2070967C1 (en) * | 1993-03-25 | 1996-12-27 | Центральный научно-исследовательский институт химии и механики | Device for suppression of explosion |
| CN1775597A (en) * | 1996-04-08 | 2006-05-24 | 大赛璐化学工业株式会社 | Method for controlling gas flow from gas generator to gas bag and airbag inflator |
| WO2000072922A1 (en) * | 1999-05-28 | 2000-12-07 | Kidde-Graviner Limited | Fire extinguishing and explosion suppression arrangements and methods |
| CN101440712A (en) * | 2008-11-24 | 2009-05-27 | 杜志刚 | Mounting use method of downhole laneway coal dust gas explosion blocking machine |
| CN103790622A (en) * | 2014-01-21 | 2014-05-14 | 中国矿业大学 | Method for active explosion proofing and explosion suppression through high-pressure inert gas |
| CN204041099U (en) * | 2014-06-05 | 2014-12-24 | 陕西久泰矿业设备有限公司 | Pipeline type fine water-spray gas and coal dust destatics inerting explosion suppression device |
| CN104315935A (en) * | 2014-10-11 | 2015-01-28 | 上海应用技术学院 | Automatic explosion suppressing device applicable to dust explosion in pipeline |
| CN204188088U (en) * | 2014-10-11 | 2015-03-04 | 上海应用技术学院 | Dust explosion self-action explosion suppression device in pipeline |
| CN106422120A (en) * | 2016-11-17 | 2017-02-22 | 中国计量大学 | Industrial pipeline combustible gas explosion inhibiting device and triggering method thereof |
| CN106706706A (en) * | 2017-02-14 | 2017-05-24 | 中国矿业大学 | Explosion suppression experimental system and explosion suppression experimental method for gas extraction pipeline coupled by CO2 and vacuum cavity |
| CN207554098U (en) * | 2017-11-23 | 2018-06-29 | 黑龙江科技大学 | A kind of datonation-inhibition explosion isolation device of active noble gas foam metal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107725099A (en) | 2018-02-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104110582B (en) | Safe delivery system for coal bed gas | |
| US10252092B2 (en) | Explosion protection system | |
| CN101716403B (en) | Spraying agent type automatic fire extinguishing device for vehicle | |
| CN104315935B (en) | Be applicable to dust explosion self-action explosion suppression device in pipeline | |
| CN207587767U (en) | A kind of lithium ion battery fireproof anti-explosion device | |
| US20200091945A1 (en) | Wireless sensor node with hierarchical protection structure | |
| CN107956500A (en) | A kind of gasbag-type active explosion suppression explosion isolation device and method | |
| CN204188088U (en) | Dust explosion self-action explosion suppression device in pipeline | |
| CN107725099B (en) | Active inert gas foam metal explosion suppression and explosion suppression device | |
| CN103311872A (en) | Air bag type protection box for cable joint | |
| CN112670642B (en) | Inert gas protection method for explosion-proof lithium battery power supply during combustion | |
| CN207554098U (en) | A kind of datonation-inhibition explosion isolation device of active noble gas foam metal | |
| CN104343356A (en) | Explosion fire door | |
| CN109675226B (en) | Automatic fire extinguishing system for explosion-proof vehicle | |
| CN104014091B (en) | Extinguishing device for combustible and explosive area | |
| CN203489006U (en) | Safe conveying system for coalbed methane | |
| CN104847409A (en) | Gas-producing type airbag explosion suppression device for coal mine tunnel | |
| CN211297253U (en) | Explosion-proof structure for chemical equipment | |
| RU2712387C1 (en) | Fire and explosion protection system for mine workings of coal mines | |
| CN204716283U (en) | A kind of mine escape capsule with anticollision device, collision-prevention device | |
| CN205127241U (en) | Automatically controlled implosion formula extinguishing device | |
| CN203531960U (en) | Mining multi-functional shelter place protection wall | |
| CN102523715A (en) | Arc-preventing device for mining flameproof equipment | |
| CN219041321U (en) | Fire-proof sealing device for ship cable and pipeline penetrating through aluminum alloy bulkhead or deck | |
| CN103296610A (en) | High-pressure sealing pressure relief device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |