CN111828841A - System for actively inhibiting explosion of toxic and harmful gases - Google Patents
System for actively inhibiting explosion of toxic and harmful gases Download PDFInfo
- Publication number
- CN111828841A CN111828841A CN202010645348.1A CN202010645348A CN111828841A CN 111828841 A CN111828841 A CN 111828841A CN 202010645348 A CN202010645348 A CN 202010645348A CN 111828841 A CN111828841 A CN 111828841A
- Authority
- CN
- China
- Prior art keywords
- pipeline section
- explosion
- vacuum
- toxic
- inert dust
- 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.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Nozzles (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention provides a system for actively inhibiting the explosion of toxic and harmful gases, belonging to the technical field of explosion inhibition. The system comprises a vacuum pipeline section, an inert dust pipeline section, a conveying gas pipeline section, a pressure sensing valve, an air pump, a check valve and a hemispherical nozzle, toxic gas enters from the left side of the conveying gas pipeline section, combustion occurs on the left side, the pressure sensing valve is arranged at the joint of the conveying gas pipeline section and the vacuum pipeline section, the air pump keeps the vacuum state in the vacuum pipeline section all the time, the joint of the inert dust pipeline section and the conveying gas pipeline section is a check valve and the hemispherical nozzle, the joint of the vacuum pipeline section and the inert dust pipeline section is the pressure sensing valve, and the pressure sensing valve is connected with the check valve. The invention inhibits the explosion of poisonous and harmful gas in the conveying process, thereby reducing the severity of accident consequences.
Description
Technical Field
The invention relates to the technical field of explosion suppression, in particular to a system for actively suppressing the explosion of toxic and harmful gases.
Background
Industrial accidents are mostly caused by explosion, and particularly, harmful effects caused by the explosion of toxic and harmful gases are more profound, so that the accident prevention is particularly important. The prevention and control of explosion disasters relate to a plurality of complex physical and chemical processes, and generally comprises three prevention and control measures of explosion suppression, explosion suppression and explosion venting, wherein the explosion suppression is an important means. The basic working principle of explosion suppression is to form an explosion suppression band consisting of inert dust in advance on an explosion propagation channel, and to extinguish and attenuate immediately arriving explosion flame and shock wave, thereby achieving the purposes of controlling the explosion action range and reducing the explosion degree. Explosion suppression can be divided into two main categories, active explosion suppression and passive explosion suppression. The active explosion suppression is to detect explosion signals such as explosion pressure, explosion flame and the like in time through sensitive elements such as a sensor and the like, immediately trigger an explosion suppression agent spraying device to act through a control unit, and quickly spray out the explosion suppression agent in a high-pressure injection or explosion scattering mode and the like, so that the aim of explosion suppression is fulfilled. The passive explosion suppression is to disperse the explosion suppression agent by using the energy of the shock wave, the shock wave is attenuated due to energy consumption, and the formed explosion suppression area also has the function of suppressing the subsequently arriving explosion flame.
The arrangement of the vacuum chamber in the duct can effectively suppress propagation of gas combustion flame and propagation of shock wave. The vacuum chamber effectively absorbs shock waves and explosion energy at the initial stage of explosion, thereby playing a role in inhibiting combustion and explosion. After inert dust with proper concentration is loaded in a certain explosion suppression zone, combustion flame is decelerated due to momentum and energy transfer between gas and particles, the distance between shock waves and the flame is gradually increased to lose energy support, dust particles also have the function of absorbing the energy of the shock waves, the two effects are simultaneously carried out and mutually fed back, the shock waves are quickly attenuated, and explosion suppression is successful. When the dust concentration of the explosion suppressor is lower than a certain critical value, although the dust concentration has a certain suppression effect on explosion, the dust concentration cannot be completely suppressed, and the shock wave can grow again in the pipeline section filled with the conveying gas after passing through the explosion suppression area and finally tends to be stable. Only when the dust concentration of the explosion suppressor is higher than a certain value, the shock wave can be completely suppressed and can not grow again in the tube.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a system for actively inhibiting the explosion of toxic and harmful gases, which inhibits the explosion of the toxic and harmful gases in the conveying process and reduces the severity of accident consequences.
The system comprises an air pump, a vacuum pipeline section, a pressure sensing valve, an inert dust pipeline section, a check valve, a conveying gas pipeline section and a hemispherical nozzle, wherein the conveying gas pipeline section is respectively connected with the vacuum pipeline section and the inert dust pipeline section, the pressure sensing valve is arranged at the joint of the conveying gas pipeline section and the vacuum pipeline section, the pressure sensing valve is connected with the air pump through a line, the air pump keeps the vacuum pipeline section in a vacuum state, the joint of the inert dust pipeline section and the conveying gas pipeline section is provided with the check valve and the hemispherical nozzle, the joint of the vacuum pipeline section and the inert dust pipeline section is provided with the pressure sensing valve, and the pressure sensing valve is connected with the check valve through a line.
The distance between the joint of the conveying gas pipeline section and the vacuum pipeline section and the joint of the conveying gas pipeline section and the inert dust pipeline section is not too large, and is generally 2-3 m.
The inner diameters of the vacuum pipeline section, the inert dust pipeline section and the gas conveying pipeline section are 0.14 m.
The direction of the check valve is led to the gas conveying pipeline section from the inert dust pipeline section and is unidirectional, and a hemispherical spray head is arranged between the check valve and the gas conveying pipeline section.
The inert dust in the inert dust pipeline section is calcium carbonate dust particles, and the concentration of the calcium carbonate dust particles is 0.526kg/m3. At this concentration, the inert dust has a good effect of suppressing the explosion of toxic and harmful gases.
The hemispherical nozzle is a hollow hemisphere, 80-90 small holes with the diameter of 1-1.8mm are uniformly drilled on the surface of the hemispherical nozzle, and the hemispherical surface of the hemispherical nozzle faces the gas conveying pipeline section, so that the inert dust is basically uniformly distributed in the fan-shaped spraying range of the nozzle.
The technical scheme of the invention has the following beneficial effects:
in the scheme, the system is used for inhibiting the explosion of toxic and harmful gases, and the vacuum chamber effectively absorbs shock waves and explosion energy at the initial explosion stage; the combustion flame is decelerated by momentum and energy transfer between the inert dust and the gas, the distance between the shock wave and the flame is gradually increased to lose the energy support, and meanwhile, the dust particles also absorb the energy of the shock wave. Under the dual action of the vacuum chamber and the inert dust, the shock waves are fed back mutually, so that the shock waves are quickly attenuated, and the explosion is successfully inhibited.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the check valve of the present invention;
FIG. 3 is a schematic diagram of the structure of the pressure-sensitive valve of the present invention, wherein (a) is a right side view, (b) is a top view, and (c) is a front view;
FIG. 4 is a schematic structural view of a hemispherical head according to the present invention.
Wherein: 1-air pump, 2-vacuum pipeline section, 3-pressure induction valve, 4-inert dust pipeline section, 5-check valve, 6-gas conveying pipeline section and 7-hemispherical spray head.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
The invention provides a system for actively inhibiting the explosion of toxic and harmful gases.
As shown in fig. 1, the system includes an air pump 1, a vacuum pipeline section 2, a pressure sensing valve 3, an inert dust pipeline section 4, a check valve 5, a conveying gas pipeline section 6 and a hemispherical nozzle 7, the conveying gas pipeline section 6 is respectively connected with the vacuum pipeline section 2 and the inert dust pipeline section 4, the pressure sensing valve 3 is arranged at the joint of the conveying gas pipeline section 6 and the vacuum pipeline section 2, as shown in fig. 3, the pressure sensing valve 3 is connected with the air pump 1 through a line, the air pump keeps the vacuum pipeline section 2 in a vacuum state, the check valve 5 and the hemispherical nozzle 7 are arranged at the joint of the inert dust pipeline section 4 and the conveying gas pipeline section 6, the pressure sensing valve 3 is arranged at the joint of the vacuum pipeline section 2 and the inert dust pipeline section 4, and the pressure sensing valve 3 is connected with the check valve 5 through a line.
The distance between the conveying gas pipeline section 6 and the connection part of the vacuum pipeline section 2 and the inert dust pipeline section 4 is not too large.
The inner diameters of the vacuum pipeline section 2, the inert dust pipeline section 4 and the conveying gas pipeline section 6 are 0.14 m.
As shown in fig. 2, the direction of the check valve 5 is from the inert dust duct section 4 to the conveying gas duct section 6, and is unidirectional.
The inert dust in the inert dust pipeline section 4 is calcium carbonate dust particles, and the concentration of the calcium carbonate dust particles is 0.526kg/m3。
As shown in figure 4, the hemispherical nozzle 7 is a hollow hemisphere, and 80-90 small holes with diameters of 1-1.8mm are drilled on the surface of the hemispherical nozzle.
When the conveying gas pipe section 6 is normally operated, the air pump 1 maintains the vacuum state of the vacuum pipe section 2, and the pressure sensing valve 3 and the check valve 5 are kept in the closed state. When the poisonous and harmful gas in the gas conveying pipeline section 6 is burnt, the poisonous and harmful gas and the pressure sensing valve 3 in the vacuum pipeline section 2 sense the pressure change, the pressure valve is opened, the gas enters the vacuum pipeline section 2 due to the pressure difference, and the vacuum pipeline section 2 absorbs shock wave and explosion energy to inhibit explosion; the pressure sensing valve 3 is also connected with the air pump 1, and when the pressure sensing valve senses the pressure change, the pressure sensing valve transmits a signal to the air pump 1, so that the air pump 1 stops operating, and toxic and harmful gases are prevented from being discharged into the air.
When poisonous and harmful gas enters the vacuum pipeline section 2, the pressure sensing valve 3 between the vacuum pipeline section 2 and the inert dust pipeline section 4 senses the pressure change, the valve is opened, the inert dust enters the vacuum pipeline section 2 due to the pressure difference, and the shock wave is rapidly attenuated under the dual action of the vacuum pipeline section 2 and the inert dust, so that the purpose of inhibiting explosion is achieved; here, when the pressure sensing valve 3 senses a pressure change, a signal is transmitted to the check valve 5, the check valve 5 is opened, inert dust in the inert dust pipeline section 4 is sprayed into the conveying gas pipeline section 6 by the hemispherical spray head 7, and gas explosion which is not sucked into the vacuum pipeline section 2 is restrained.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (6)
1. A system for actively suppressing the explosion of toxic and harmful gases, comprising: comprises an air pump (1), a vacuum pipeline section (2), a pressure induction valve (3), an inert dust pipeline section (4), a check valve (5), a gas conveying pipeline section (6) and a hemispherical spray head (7), conveying gas pipeline section (6) link to each other with vacuum pipeline section (2) and inert dust pipeline section (4) respectively, conveying gas pipeline section (6) set up pressure-sensitive valve (3) with vacuum pipeline section (2) junction, pressure-sensitive valve (3) link to each other with air pump (1), air pump (1) are guaranteed that vacuum pipeline section (2) are in vacuum state, inert dust pipeline section (4) set up check valve (5) and hemisphere type shower nozzle (7) with conveying gas pipeline section (6) junction, vacuum pipeline section (2) set up pressure-sensitive valve (3) with inert dust pipeline section (4) junction, line connection is used between pressure-sensitive valve (3) and check valve (5).
2. The system for actively suppressing the explosion of toxic and harmful gases according to claim 1, wherein: the distance between the joint of the conveying gas pipeline section (6) and the vacuum pipeline section (2) and the joint of the conveying gas pipeline section (6) and the inert dust pipeline section (4) is 2-3 m.
3. The system for actively suppressing the explosion of toxic and harmful gases according to claim 1, wherein: the inner diameters of the vacuum pipeline section (2), the inert dust pipeline section (4) and the gas conveying pipeline section (6) are 0.14 m.
4. The system for actively suppressing the explosion of toxic and harmful gases according to claim 1, wherein: the direction of check valve (5) is by inert dust pipeline section (4) lead to conveying gas pipeline section (6), check valve (5) are one-way, set up hemisphere type shower nozzle (7) between check valve (5) and conveying gas pipeline section (6).
5. The system for actively suppressing the explosion of toxic and harmful gases according to claim 1, wherein: the inert dust in the inert dust pipeline section (4) is calcium carbonate dust particles, and the concentration of the calcium carbonate dust particles is 0.526kg/m3。
6. The system for actively suppressing the explosion of toxic and harmful gases according to claim 1, wherein: the hemispherical spray head (7) is a hollow hemisphere, 80-90 small holes with the diameter of 1-1.8mm are uniformly distributed on the surface of the hemispherical spray head, and the hemispherical surface of the hemispherical spray head (7) faces the gas conveying pipeline section (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010645348.1A CN111828841B (en) | 2020-07-06 | 2020-07-06 | System for actively inhibiting explosion of toxic and harmful gases |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010645348.1A CN111828841B (en) | 2020-07-06 | 2020-07-06 | System for actively inhibiting explosion of toxic and harmful gases |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111828841A true CN111828841A (en) | 2020-10-27 |
| CN111828841B CN111828841B (en) | 2021-11-05 |
Family
ID=72900244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010645348.1A Active CN111828841B (en) | 2020-07-06 | 2020-07-06 | System for actively inhibiting explosion of toxic and harmful gases |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111828841B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117564054B (en) * | 2023-10-27 | 2024-05-17 | 北京科技大学 | Device suitable for dust treatment of building site |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1508010A (en) * | 1974-04-04 | 1978-04-19 | Didier Eng | Explosion prevention in gas ducts |
| KR20020091912A (en) * | 2001-06-01 | 2002-12-11 | 윤삼기 | Check apparatus for the fire detector of the explosion preventive type |
| CN101015729A (en) * | 2007-02-13 | 2007-08-15 | 中国矿业大学 | Method and appts. for suppressing combustible substance explosion and diffusion |
| CN202543341U (en) * | 2012-04-12 | 2012-11-21 | 王常利 | Explosion-proof device for oxyhydrogen generator |
| CN202876161U (en) * | 2012-11-05 | 2013-04-17 | 煤炭科学研究总院沈阳研究院 | Automatic explosion suppression device of inflammable gas delivery pipeline |
| CN103055450A (en) * | 2012-12-17 | 2013-04-24 | 东北大学 | Spontaneous explosion suppression device |
| CN104110582A (en) * | 2013-09-29 | 2014-10-22 | 淄博安益矿用设备有限公司 | Safe delivery system for coal bed gas |
| CN204709695U (en) * | 2015-05-21 | 2015-10-21 | 重庆安仪煤矿设备有限公司 | Gas tube automatic leak detection explosion suppression device |
| CN107982820A (en) * | 2017-12-12 | 2018-05-04 | 徐州兴运塑材有限公司 | A kind of pipe used in mine explosion suppression device |
| CN108159602A (en) * | 2017-11-27 | 2018-06-15 | 中国计量大学 | A kind of explosion suppression devices for promoting the datonation-inhibition medium predecomposition of powder |
| CN207539402U (en) * | 2017-12-04 | 2018-06-26 | 郑州中泰安科粉体科技有限公司 | A kind of datonation-inhibition connection valve |
| CN109001255A (en) * | 2018-09-21 | 2018-12-14 | 中国矿业大学(北京) | A kind of compound negative pressure cavity inhibits fork tunnel gas explosion experimental provision and method |
| CN109764245A (en) * | 2019-02-19 | 2019-05-17 | 常州港华燃气有限公司 | Compound explosion suppression type natural gas line explosion-proof fire-extinguishing device |
| CN110947126A (en) * | 2019-12-06 | 2020-04-03 | 武汉理工大学 | Explosion-proof explosion-venting linkage system for combustible gas and dust conveying pipeline |
-
2020
- 2020-07-06 CN CN202010645348.1A patent/CN111828841B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1508010A (en) * | 1974-04-04 | 1978-04-19 | Didier Eng | Explosion prevention in gas ducts |
| KR20020091912A (en) * | 2001-06-01 | 2002-12-11 | 윤삼기 | Check apparatus for the fire detector of the explosion preventive type |
| CN101015729A (en) * | 2007-02-13 | 2007-08-15 | 中国矿业大学 | Method and appts. for suppressing combustible substance explosion and diffusion |
| CN202543341U (en) * | 2012-04-12 | 2012-11-21 | 王常利 | Explosion-proof device for oxyhydrogen generator |
| CN202876161U (en) * | 2012-11-05 | 2013-04-17 | 煤炭科学研究总院沈阳研究院 | Automatic explosion suppression device of inflammable gas delivery pipeline |
| CN103055450A (en) * | 2012-12-17 | 2013-04-24 | 东北大学 | Spontaneous explosion suppression device |
| CN104110582A (en) * | 2013-09-29 | 2014-10-22 | 淄博安益矿用设备有限公司 | Safe delivery system for coal bed gas |
| CN204709695U (en) * | 2015-05-21 | 2015-10-21 | 重庆安仪煤矿设备有限公司 | Gas tube automatic leak detection explosion suppression device |
| CN108159602A (en) * | 2017-11-27 | 2018-06-15 | 中国计量大学 | A kind of explosion suppression devices for promoting the datonation-inhibition medium predecomposition of powder |
| CN207539402U (en) * | 2017-12-04 | 2018-06-26 | 郑州中泰安科粉体科技有限公司 | A kind of datonation-inhibition connection valve |
| CN107982820A (en) * | 2017-12-12 | 2018-05-04 | 徐州兴运塑材有限公司 | A kind of pipe used in mine explosion suppression device |
| CN109001255A (en) * | 2018-09-21 | 2018-12-14 | 中国矿业大学(北京) | A kind of compound negative pressure cavity inhibits fork tunnel gas explosion experimental provision and method |
| CN109764245A (en) * | 2019-02-19 | 2019-05-17 | 常州港华燃气有限公司 | Compound explosion suppression type natural gas line explosion-proof fire-extinguishing device |
| CN110947126A (en) * | 2019-12-06 | 2020-04-03 | 武汉理工大学 | Explosion-proof explosion-venting linkage system for combustible gas and dust conveying pipeline |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117564054B (en) * | 2023-10-27 | 2024-05-17 | 北京科技大学 | Device suitable for dust treatment of building site |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111828841B (en) | 2021-11-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113090956B (en) | Partitioned active explosion-proof and explosion-suppression device and control method thereof | |
| CN111828841B (en) | System for actively inhibiting explosion of toxic and harmful gases | |
| EP2488259B1 (en) | Flame mitigation device and system | |
| KR102306801B1 (en) | Panel sprinkler system on the wall | |
| KR102097875B1 (en) | Fire suppression system and nozzle structure of fire extinguishing water used therefor | |
| CA2807046C (en) | Dual mode agent discharge system with multiple agent discharge capability | |
| CN212662507U (en) | Energy storage container perfluor hexanone extinguishing device | |
| CN105536173A (en) | Method for restraining oil gas explosion in restricted space through gas-liquid two-phase explosion restraining agent | |
| WO2006053348A2 (en) | Fire and explosion suppression | |
| CN210278829U (en) | Dust explosion-proof intelligent control explosion suppression device of dry type dust removal system | |
| CN109173114B (en) | Fine water mist automatic explosion suppression device for explosion venting premixed flame to induce vapor cloud explosion and explosion suppression method thereof | |
| CN206965397U (en) | Datonation-inhibition dust sucting pipeline | |
| WO2014131231A1 (en) | Apparatus for controlling gas explosions and method of use thereof | |
| CN212618257U (en) | Flame gun with protection function | |
| CN210409318U (en) | Pressure storage type clean gas fire extinguishing device | |
| CN207004563U (en) | A kind of device for preventing goaf coal body spontaneous combustion | |
| CN208582903U (en) | A kind of spark and pressure detection dust fire-extinguishing explosion suppression device | |
| KR101810002B1 (en) | Apparatus for preventing water hammer for fire extinguishing facilities in building | |
| CN218912966U (en) | Tunnel fire alarm system | |
| CN212411325U (en) | Fire control and entrance guard linkage protection device in energy storage application | |
| CN205516101U (en) | Datonation -inhibition ware of carbon dioxide | |
| CN207137224U (en) | Water-power plant insulating oil, turbine grease chamber fire-fighting system | |
| CN203315618U (en) | Gas generator | |
| CN210920966U (en) | Wet-type explosion blocking and releasing device capable of preventing water from losing and used for double-barrel pipeline | |
| CN210804682U (en) | Cotton picker fire monitoring system |
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 |