CN110975209B - Handheld water mist fire extinguishing device for vertical pipeline gas jet fire - Google Patents

Handheld water mist fire extinguishing device for vertical pipeline gas jet fire Download PDF

Info

Publication number
CN110975209B
CN110975209B CN201911346953.2A CN201911346953A CN110975209B CN 110975209 B CN110975209 B CN 110975209B CN 201911346953 A CN201911346953 A CN 201911346953A CN 110975209 B CN110975209 B CN 110975209B
Authority
CN
China
Prior art keywords
fire extinguishing
fire
water
ring
water mist
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.)
Expired - Fee Related
Application number
CN201911346953.2A
Other languages
Chinese (zh)
Other versions
CN110975209A (en
Inventor
夏云春
吴静
李凯
张霖
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Jianzhu University
Original Assignee
Anhui Jianzhu University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Anhui Jianzhu University filed Critical Anhui Jianzhu University
Priority to CN201911346953.2A priority Critical patent/CN110975209B/en
Publication of CN110975209A publication Critical patent/CN110975209A/en
Application granted granted Critical
Publication of CN110975209B publication Critical patent/CN110975209B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C31/00Delivery of fire-extinguishing material
    • A62C31/02Nozzles specially adapted for fire-extinguishing
    • A62C31/05Nozzles specially adapted for fire-extinguishing with two or more outlets

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Abstract

The invention discloses a handheld water mist fire extinguishing device for vertical pipeline gas jet fire, which comprises: the fire extinguishing ring with the telescopic support rod is sleeved below jet flow flame of a vertical gas leakage pipeline, a main fire extinguishing nozzle above the fire extinguishing ring is used for suppressing fire and utilizing the steam flow of high-speed water mist of a water supply pump to press combustible gas to flow towards the edge, and then the lower fire extinguishing nozzle above the periphery of the fire extinguishing ring sprays the water mist, a water mist closed envelope surface completely surrounding combustion flame is formed in the area near the root of the combustion flame, and the combustion flame is rapidly cooled and rapidly extinguished due to suffocation under the cooling and suffocation synergistic effect when the main fire extinguishing nozzle and the lower fire extinguishing nozzle spray the water mist simultaneously. The handheld water mist fire extinguishing device for the vertical pipeline gas jet fire not only ensures the aim of quickly and effectively extinguishing the vertical pipeline gas jet fire, but also achieves the characteristics of small volume, light weight, simple structure and convenient operation and use.

Description

Handheld water mist fire extinguishing device for vertical pipeline gas jet fire
The technical field is as follows:
the invention relates to a handheld water mist fire extinguishing device for vertical pipeline gas jet fire, and belongs to the technical field of fire fighting and safety.
Background art:
in recent years, energy and chemical industries in China are rapidly developed, and combustible and explosive gas or liquid is often leaked from vertical pipelines and combustion is initiated when pipelines in industrial production processes are erected. These jet combustion pipes, which according to the operating regulations must be shut after extinguishing the fire, can cause even greater disastrous accidents and even explosions due to backfiring inside the pipes. The vertical jet flow pipelines have large combustion fire, high airflow jet speed and large impact force, are difficult to extinguish fire by a common covering method, and the covering is not close to jet flow flame and is blown away by strong jet flow; and other fire extinguishing methods also have difficulty in meeting the technical requirements of fire extinguishing. Therefore, in order to ensure the safety of personnel and reduce the hazard level of accidents, special fire extinguishing apparatuses are required to extinguish the high-speed jet fire of the vertical pipelines.
Disclosure of Invention
In order to overcome the defects that the existing vertical pipeline high-speed gas jet combustion fire is difficult to extinguish, and the like, the invention aims to provide the handheld water mist fire extinguishing device for the vertical pipeline gas jet fire, which can quickly and effectively extinguish the high-speed gas jet fire of the vertical pipeline, quickly deal with leakage accidents and protect the safety of fire extinguishing personnel.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a hand-held water mist fire extinguishing device for vertical pipeline gas jet fire is characterized in that a fire extinguishing ring device is sleeved at the outlet of a vertical pipeline;
the fire extinguishing ring device comprises fire extinguishing ring, main fire extinguishing nozzle, lower fire extinguishing nozzle and fixing device, is fixed whole fire extinguishing ring device monolithic at perpendicular gas pipeline's lateral wall and fixed by fixing device, the shape of fire extinguishing ring be the ring form, evenly be equipped with the perpendicular ascending lower fire extinguishing nozzle of opening along the integral type directly over circumference, the integral type is equipped with the equalizer support on the diameter directly over circumference, be equipped with main fire extinguishing nozzle down in the middle of the equalizer support top, main fire extinguishing nozzle and lower fire extinguishing nozzle are respectively through the equal orchestration intercommunication of water supply branch pipe and water supply, and the equal orchestration rethread of water supply feeds through and supplies with required fire extinguishing water with the water feed pump intercommunication.
The further technology of the invention is as follows:
preferably, the lower fire extinguishing nozzles are 8 stainless steel fine water mist nozzles, the spraying angles are 120-135 degrees, and the lower fire extinguishing nozzles are vertically arranged along the periphery of the fire extinguishing ring and above the fire extinguishing ring in an integrated mode.
Preferably, the pressure equalizer is arranged in the middle of the top end of the pressure equalizer support, a vertical pressure equalizer inlet pipe is integrally arranged at the central part of the upper end of the pressure equalizer, and the main fire extinguishing nozzle is communicated with the bottom of the pressure equalizer.
Preferably, the main fire extinguishing nozzle is a stainless steel fine water mist nozzle, the spraying angle is 120-150 degrees, and the opening is vertically downwards arranged at the central part of the lower bottom of the pressure equalizer in an integrated manner and is positioned on the vertical central line of the fire extinguishing ring.
Preferably, fixing device constitute by otic placode and regulation pole, the otic placode totally 2, be down "L" shape, the tip fixed connection of horizontal segment just is symmetrical arrangement in ring circumference side of putting out a fire, is close to the middle part of vertical section lower extreme and is equipped with a circular screw through-hole, the level sets up the regulation pole that has the external screw thread in the circular screw through-hole, adjust pole one end and pass through ball head articulate fixed pipe clamp, the other end integral type is equipped with one and adjusts the bracelet.
Preferably, the equal orchestration of feedwater is established at one of them otic placode horizontal segment middle part, and it is fixed as an organic whole, equal orchestration upper end of feedwater and bottom are sealed, and the central point integral type of upper end is equipped with perpendicular inlet tube, and the upper end of perpendicular inlet tube is equipped with a locker, and the lateral wall symmetry that is close to the bottom is equipped with 2 horizontal delivery ports, and a horizontal delivery port is by the water supply branch pipe with put out the fire on the ring feed water mouth intercommunication that goes out, and another horizontal delivery port is by another water supply branch pipe and equalizer inlet tube intercommunication, and the perpendicular inlet tube is by water supply pipe and feed pump export intercommunication, and all intercommunication interfaces adopt the locker locking.
Preferably, the hand-held type water mist fire extinguishing device further comprises a water storage tank, a pump inlet water pipe is arranged between the water feeding pump and the water storage tank, the inner wall and the outer wall of the water storage tank are subjected to anti-corrosion treatment, the upper part of the water storage tank is open and sealed by a grid, the bottom of the water storage tank is provided with a drain outlet, a communicated water replenishing pipe is horizontally arranged on the outer side surface close to the upper opening in an integrated mode, and a communicated [ -shaped liquid level meter is vertically arranged on the outer wall of the other side of the water storage tank.
Preferably, telescopic supporting rods are arranged on the circumferential side face of the fire extinguishing ring.
Compared with the prior art, the invention has the beneficial effects that:
(1) the handheld water mist fire extinguishing device for the vertical pipeline gas jet fire can quickly extinguish the vertical pipeline gas burning fire, overcomes the defects of high difficulty in extinguishment, time and labor waste and high danger in the extinguishment process by adopting the traditional covering method, and meets the technical requirement of quickly and effectively extinguishing the vertical pipeline gas jet fire.
(2) The handheld water mist fire extinguishing device for the vertical pipeline gas jet fire not only ensures the aim of quickly and effectively extinguishing the gas vertical pipeline burning fire, but also achieves the characteristics of small volume, economy, practicability, convenient installation, reconstruction and maintenance.
Description of the drawings:
in order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts;
FIG. 1 is a schematic diagram of the system of the present invention;
FIG. 2 is an overall view of the fire extinguishing ring of the present invention;
FIG. 3 is a block diagram of a primary nozzle of the present invention;
FIG. 4 is a block diagram of the feed water distributor of the present invention;
FIG. 5 is a partial block diagram of the fire suppression ring of the present invention;
reference numbers in the figures: 1-a vertical pipe; 2-combustion flame; 3-fire extinguishing ring; 4-water supply branch pipe; 5-a water supply pipe; 6-a water supply pump; 7-pump inlet water pipe; 8, a water storage tank; 9-supplement water pipe; 10-a liquid level meter; 11-a water supply homogenizing device; 12-a voltage equalizer; 13-equalizer support; 14-lower extinguishing nozzle; 15-fixing the pipe clamp; 16-a telescoping strut; 17-ear plate; 18-adjusting rod; 19-equalizer inlet pipe; 20-a primary extinguishing nozzle; 21-fire extinguishing ring water supply mouth.
The specific implementation structure is as follows:
the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-5, a hand-held water mist fire extinguisher with vertical pipe gas jet fire, a fire extinguishing ring device is sleeved at the outlet of a vertical pipe 1;
the ring 3 device of putting out a fire by ring 3, main fire extinguishing nozzle 20, fire extinguishing nozzle 14 and fixing device constitute down, by fixing device with whole 3 device monolithic fixings of ring of putting out a fire at the lateral wall of perpendicular gas pipeline and fixed, the shape of ring 3 of putting out a fire be the ring form, evenly be equipped with the perpendicular ascending lower fire extinguishing nozzle 14 of opening along the direct top integral type of circumference, the integral type is equipped with voltage equalizer support 13 on the diameter direct top of circumference, be equipped with main fire extinguishing nozzle 20 down in the middle of voltage equalizer support 13 top, main fire extinguishing nozzle 20 and lower fire extinguishing nozzle 14 are respectively through the equal orchestration 11 intercommunication of water supply branch 4 with the water supply, the equal orchestration 11 rethread water supply pipe 5 of water supply pump 6 intercommunication and supply with required fire extinguishing water.
The lower fire extinguishing nozzles 14 are 8 stainless steel fine water mist nozzles, the spraying angles are 120-135 degrees, and the nozzles are vertically arranged along the circumferential upper part of the fire extinguishing ring 3 in an integrated mode.
The middle of the top end of the pressure equalizer support 13 is provided with a pressure equalizer 12, the central part of the upper end of the pressure equalizer 12 is integrally provided with a vertical pressure equalizer inlet pipe 19, and a main fire extinguishing nozzle 20 is communicated with the bottom of the pressure equalizer.
The main fire extinguishing nozzle 20 is a stainless steel fine water mist nozzle, the spraying angle is 120-150 degrees, the opening is vertically downwards arranged at the central part of the lower bottom of the pressure equalizer in an integrated manner and is positioned on the vertical central line of the fire extinguishing ring 3.
The water supply mouth 21 of the fire extinguishing ring is made of steel pipes, the lower end of the water supply mouth is integrally and vertically arranged on the circumferential right upper part of the fire extinguishing ring 3 and communicated with the fire extinguishing ring 3, and the upper end of the water supply mouth is integrally provided with a locker.
Fixing device constitute by otic placode 17 and regulation pole 18, otic placode 17 altogether 2, be down "L" shape, the tip fixed connection of horizontal segment just is symmetrical arrangement in 3 circumference sides of ring that extinguish fires, is close to the middle part of vertical section lower extreme and is equipped with a circular screw through-hole, the level sets up the regulation pole 18 that has the external screw thread in the circular screw through-hole, adjust 18 one ends of pole and pass through bulb articulate fixing tube clamp 15, the other end integral type is equipped with one and adjusts the bracelet.
Equal distributor 11 of feedwater is established at one of them otic placode 17 horizontal segment middle part, and it is fixed as an organic whole, equal distributor 11 upper end of feedwater and bottom are sealed, the central point integral type of upper end is equipped with perpendicular inlet tube, and the upper end of perpendicular inlet tube is equipped with a locker, the lateral wall symmetry that is close to the bottom is equipped with 2 horizontal delivery ports, a horizontal delivery port is by water supply branch pipe 4 and the ring water supply mouth 21 intercommunication of putting out a fire on the ring 3 that puts out a fire, another horizontal delivery port is by another water supply branch pipe 4 and pressure equalizer inlet tube 19 intercommunication, the perpendicular inlet tube is by water supply pipe 5 and the export intercommunication of water-feeding pump 6, and all intercommunication interfaces adopt locker locking.
The water feeding pump 6 is a multi-stage high-pressure centrifugal water pump, the outlet pressure is 6-10 MPa, and the flow rate is 500-600 liters/minute.
The hand-held type water mist fire extinguishing device still includes storage water tank 8, storage water tank 8 be the rectangular bodily form, make by steel sheet processing, the volume is 2 ~ 3m3, be equipped with pump inlet water pipe 7 between water-feeding pump 6 and the storage water tank 8, storage water tank 8 inside and outside wall through anticorrosive treatment, the upper portion is uncovered and add the grid and seal, the bottom is equipped with a drain, is close to the lateral surface integral type level of suitable for reading and is equipped with the make-up water pipe 9 of a intercommunication, the opposite side outer wall is equipped with the "[" shape level gauge 10 of a intercommunication perpendicularly.
The water replenishing pipe 9 is a plastic pipe, one end of the plastic pipe is connected with a tap water source with pressure, and the other end of the plastic pipe is communicated with the water storage tank 8.
The liquid level meter 10 is a glass liquid level meter 10.
The locking device is a metal locking device so as to prevent the connecting pipeline from being released when pressurized.
The pump inlet water pipe 7 is a metal hose or a rubber pipe, one end of the pump inlet water pipe is communicated with the inlet of the water feeding pump 6, and the other end of the pump inlet water pipe extends into the water storage tank 8 below the water surface.
The fire extinguishing ring 3 is provided with telescopic support rods 16 on the circumferential side.
The telescopic supporting rod 16 is made of a plurality of sections of steel pipes, can freely stretch and contract within a certain length range and can be fastened.
When a fire breaks out in the vertical pipe 1 with combustible gas, the fire extinguishing ring 3 is sleeved downwards below the outlet of the combustion pipe 1 from the upper end of the vertical pipe 1 by manually holding the telescopic supporting rod 16. The circular band on the adjusting lever 18 is rotated to advance the fixing pipe clamp 15 toward the combustion pipe 1 until the fixing pipe clamp 15 is firmly fixed and clamped outside the vertical pipe 1 and the fire extinguishing ring 3 is kept horizontal.
The power supply of a water supply pump 6 is switched on, the water supply pump 6 is started, water is pumped from a water storage tank 8 and enters the water supply pump 6 through a pump inlet water pipe 7, the water is pressurized by the water supply pump 6 and then is conveyed into a water supply uniform distributor 11 through a water supply pipe 5, the supplied fire extinguishing water keeps high pressure in the water supply uniform distributor 11, the high pressure water entering the water supply uniform distributor 11 is divided into two paths, one path of water is supplied to a pressure equalizer 12 through a water supply branch pipe 4 and then is conveyed to a main fire extinguishing nozzle 20, the main fire extinguishing nozzle 20 vertically downwards sprays high-speed water mist and collides with high-speed air flow of combustion flame 2 to press the combustion flame 2 to a vertical pipeline outlet, and the high-speed air flow of the combustion flame 2 flows in a scattering manner in a speed direction avoiding the main fire extinguishing nozzle 20 to spray; the other path is supplied with a fire extinguishing ring water supply port 21 through a water supply branch pipe 4 and enters the fire extinguishing ring 3, high-pressure water entering the fire extinguishing ring 3 is uniformly divided into eight paths and is simultaneously supplied to eight lower fire extinguishing nozzles 14, so that the eight lower fire extinguishing nozzles 14 simultaneously spray fine water mist upwards, the eight lower fire extinguishing nozzles 14 simultaneously spray fine water mist upwards and the main fire extinguishing nozzle 20 vertically spray high-speed fine water mist downwards to form a closed fine water mist enveloping surface in the circumferential direction above the fire extinguishing ring 3 so as to completely cover the combustible gas near the root of the combustion flame 2, the closed and covered fine water mist enveloping surface isolates oxidant required by the combustion of the combustible gas and cools the combustion flame 2, and the combustion flame 2 is rapidly extinguished under the synergistic effect of cooling and suffocation. After the combustion flame 2 is extinguished, the power supply to the water feed pump 6 is turned off, the water feed pump 6 stops operating, and the main fire extinguishing nozzle 20 and the lower fire extinguishing nozzle 14 stop spraying the water mist.
The water storage tank 8 is kept at a certain water level during the whole fire extinguishing process so as to prevent the water supply pump 6 from being damaged due to idle running of the water supply pump 6 when the water supply pump 6 is started. When the water level in the water storage tank 8 is checked before the feed pump 6 is started, if the water level displayed by the liquid level meter 10 is too low, the valve on the replenishing water pipe 9 is opened immediately to supply replenishing water to the water storage tank 8, and when the water level reaches a certain height, the valve on the replenishing water pipe 9 is closed to stop supplying replenishing water to the water storage tank 8.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (7)

1. The utility model provides a vertical pipe gas efflux fire's hand-held type fine spray extinguishing device which characterized in that: the outlet of the vertical pipeline is sleeved with a fire extinguishing ring device;
the fire extinguishing ring device consists of a fire extinguishing ring, a main fire extinguishing nozzle, a lower fire extinguishing nozzle and a fixing device, the whole fire extinguishing ring device is integrally fixed on the side wall of the vertical gas pipeline by the fixing device and is fixed, the fire extinguishing ring is in a circular ring shape, the lower fire extinguishing nozzle with a vertical upward opening is integrally and uniformly arranged right above the circumference, a pressure equalizer support is integrally arranged on the diameter right above the circumference, the middle of the top end of the pressure equalizer support is provided with the downward main fire extinguishing nozzle, the main fire extinguishing nozzle and the lower fire extinguishing nozzle are respectively communicated with a water distributor through water supply branch pipes, and the water supply distributor is communicated with a water supply pump through water supply pipes and supplies required fire extinguishing water;
fixing device constitute by otic placode and regulation pole, the otic placode 2 altogether, be down "L" shape, the tip fixed connection of horizontal segment just is symmetrical arrangement in ring circumference side of putting out a fire, is close to the middle part of vertical section lower extreme and is equipped with a circular screw through-hole, the level sets up the regulation pole that has the external screw thread in the circular screw through-hole, adjust pole one end and pass through ball head articulate fixed pipe clamp, the other end integral type is equipped with one and adjusts the bracelet.
2. A hand-held water mist fire extinguisher vertical duct gas fire jet as claimed in claim 1 wherein: the lower fire extinguishing nozzles are 8 stainless steel fine water mist nozzles, the spraying angles are 120-135 degrees, and the lower fire extinguishing nozzles are vertically arranged along the periphery of the fire extinguishing ring and above the fire extinguishing ring in an integrated mode.
3. A hand-held water mist fire extinguisher vertical duct gas fire jet as claimed in claim 1 wherein: the middle of the top end of the pressure equalizer support is provided with a pressure equalizer, the central part of the upper end of the pressure equalizer is integrally provided with a vertical inlet pipe communicated with the pressure equalizer, and the main fire extinguishing nozzle is communicated with the bottom of the pressure equalizer.
4. A hand-held water mist fire extinguisher vertical duct gas fire jet system as claimed in claim 3 wherein: the main fire extinguishing nozzle is a stainless steel fine water mist nozzle, the spraying angle is 120-150 degrees, and the opening is vertically downwards arranged at the central part of the lower bottom of the pressure equalizer in an integrated manner and is positioned on the vertical central line of the fire extinguishing ring.
5. A hand-held water mist fire extinguisher vertical duct gas fire jet as claimed in claim 1 wherein: the equal orchestration of feedwater is established at one of them otic placode horizontal segment middle part, and it is fixed as an organic whole, equal orchestration upper end of feedwater and bottom are sealed, the central point integral type of upper end is equipped with perpendicular inlet tube, and the upper end of perpendicular inlet tube is equipped with a locker, the lateral wall symmetry that is close to the bottom is equipped with 2 horizontal delivery ports, a horizontal delivery port is by the water supply branch pipe with put out a fire ring feed water mouth intercommunication on the ring of putting out a fire, another horizontal delivery port is by another water supply branch pipe and equalizer inlet tube intercommunication, the perpendicular inlet tube is by feed pipe and feed pump export intercommunication, and all intercommunication interfaces adopt locker locking.
6. A hand-held water mist fire extinguisher vertical duct gas fire jet as claimed in claim 1 wherein: the hand-held type water mist fire extinguishing device further comprises a water storage tank, a pump inlet water pipe is arranged between the water feeding pump and the water storage tank, the inner wall and the outer wall of the water storage tank are subjected to anti-corrosion treatment, the upper portion of the water storage tank is open and sealed by a grid, the bottom of the water storage tank is provided with a drain outlet, a supplementing water pipe communicated with the water storage tank is horizontally arranged on the outer side face of the water storage tank, and the outer wall of the other side of the water storage tank is vertically provided with a communicated [ -shaped liquid level meter.
7. A hand-held water mist fire extinguisher system according to claim 6, wherein the fire extinguisher system comprises: the circumferential side of the fire extinguishing ring is provided with a telescopic supporting rod.
CN201911346953.2A 2019-12-24 2019-12-24 Handheld water mist fire extinguishing device for vertical pipeline gas jet fire Expired - Fee Related CN110975209B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911346953.2A CN110975209B (en) 2019-12-24 2019-12-24 Handheld water mist fire extinguishing device for vertical pipeline gas jet fire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911346953.2A CN110975209B (en) 2019-12-24 2019-12-24 Handheld water mist fire extinguishing device for vertical pipeline gas jet fire

Publications (2)

Publication Number Publication Date
CN110975209A CN110975209A (en) 2020-04-10
CN110975209B true CN110975209B (en) 2021-12-21

Family

ID=70074731

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911346953.2A Expired - Fee Related CN110975209B (en) 2019-12-24 2019-12-24 Handheld water mist fire extinguishing device for vertical pipeline gas jet fire

Country Status (1)

Country Link
CN (1) CN110975209B (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2311937C2 (en) * 2005-10-10 2007-12-10 Российская Федерация в лице Федерального агентства по атомной энергии Nitrogen cryogenic plant for fire extinguishment in closed objects
CN205245277U (en) * 2015-11-27 2016-05-18 广东万和新电气股份有限公司 Take extinguishing device's range hood
CN106840844A (en) * 2016-12-16 2017-06-13 安徽建筑大学 High temperature cylinder compression member experiment cooling spray system
CN106581891B (en) * 2016-12-16 2019-05-14 安徽建筑大学 A kind of ring-type fine mist fire-fighting cover system
CN206717142U (en) * 2017-04-11 2017-12-08 天津晋华汽车配件有限公司 A kind of steel pipe cuts fixing device
CN207591140U (en) * 2017-10-18 2018-07-10 江西剑安消防科技有限责任公司 A kind of gas extinguishing system for being used to monitor pipeline

Also Published As

Publication number Publication date
CN110975209A (en) 2020-04-10

Similar Documents

Publication Publication Date Title
CN106581891B (en) A kind of ring-type fine mist fire-fighting cover system
CN106581909B (en) Cross-shaped dry-chemical fire extinguishing cover system
CN209451202U (en) A kind of stable fire prevention fire valve
CN105597248A (en) Annular ultra-fine water spray fire-extinguishing system of oil storage tank
CN106581911A (en) Closed type compressed air and low-pressure water premixing self-rotating water mist fire extinguishing device
CN110975209B (en) Handheld water mist fire extinguishing device for vertical pipeline gas jet fire
CN109173114B (en) Fine water mist automatic explosion suppression device for explosion venting premixed flame to induce vapor cloud explosion and explosion suppression method thereof
CN110975201B (en) Handheld mixed gas fire extinguishing device for vertical pipeline gas jet fire
CN213100577U (en) Suspension type automatic water mist fire extinguishing device
CN207024451U (en) Dual-purpose safe extinction using gas rifle
CN111053990B (en) Handheld dry powder extinguishing device for vertical pipeline gas jet fire
CN106621145A (en) Open-type compressed air and low-pressure water premixed self-rotating water mist fire extinguisher
CN207356433U (en) A kind of enclosed is calmed the anger water spray automatic fire extinguisher
CN111346328B (en) Water mist fire extinguishing device for horizontal pipeline gas jet fire
CN209612620U (en) A kind of chemical industrial park accident prevention and control device
CN208893919U (en) Recycle ethyl alcohol exhaust gas spray column
CN206577278U (en) A kind of gas electricity Special water seal spark arrester
CN205268868U (en) Two -phase fire -extinguishing spray head
CN215136241U (en) High-pressure water mist fire extinguishing equipment
CN207584376U (en) A kind of inflammable and explosive gas safe conveying device
CN110947130B (en) Hand-held fire extinguishing device for horizontal pipeline liquid jet fire
CN207520479U (en) A kind of novel forest zone safety fire fighting fire-extinguishing apparatus
CN213964930U (en) Wire drawing induced draft tube fire sprinkler device
CN206372418U (en) A kind of lpg spherical tank fire-fighting system
CN111001111B (en) Handheld fire extinguishing device for vertical pipeline liquid jet fire

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
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20211221

Termination date: 20211224