CN203564677U - Spray-type burner for determining fire extinguishing performance of gaseous extinguishing agent - Google Patents
Spray-type burner for determining fire extinguishing performance of gaseous extinguishing agent Download PDFInfo
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- CN203564677U CN203564677U CN201320657515.XU CN201320657515U CN203564677U CN 203564677 U CN203564677 U CN 203564677U CN 201320657515 U CN201320657515 U CN 201320657515U CN 203564677 U CN203564677 U CN 203564677U
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Abstract
本实用新型公开了一种测定气体灭火剂灭火性能的喷雾式燃烧器，其特征是由竖管和横管相连构成“L”型气体输送管道，竖管在其封闭的顶部端面上设置有氧化剂输送口，气体灭火剂输送口处在横管的左半段管侧壁上，在气体灭火剂输送口的下游位置处设置有多孔蜂窝状整流网；燃料输送管道以同轴内套管的形式处在横管的右半段管中，在燃料输送管道的输出管口上螺纹连接雾化喷头，并在雾化喷头的颈部设置有圆盘形挡板；在“L”型气体输送管道的横管管端连接耐热玻璃管，在耐热玻璃管中形成雾化燃烧腔。本实用新型测量参数更具可靠性；其操作步骤简便，参数易于控制，重复性好。
The utility model discloses a spray burner for measuring the fire extinguishing performance of a gas fire extinguishing agent, which is characterized in that an "L"-shaped gas delivery pipeline is formed by connecting a vertical pipe and a horizontal pipe, and the vertical pipe is provided with an oxidant on its closed top end surface. The delivery port, the gas fire extinguishing agent delivery port is located on the side wall of the left half of the horizontal pipe, and a porous honeycomb rectification network is set at the downstream position of the gas fire extinguishing agent delivery port; the fuel delivery pipeline is in the form of a coaxial inner sleeve Located in the right half of the horizontal pipe, the atomizing nozzle is threadedly connected to the output nozzle of the fuel delivery pipeline, and a disc-shaped baffle is arranged on the neck of the atomizing nozzle; in the "L" type gas delivery pipeline The end of the horizontal tube is connected with a heat-resistant glass tube, and an atomizing combustion chamber is formed in the heat-resistant glass tube. The measurement parameters of the utility model are more reliable; the operation steps are simple, the parameters are easy to control, and the repeatability is good.
Description
Technical field
The utility model belongs to fire-fighting research field, is specifically related to be applicable to measure one pack system and multicomponent gas extinguishing chemical for the small-scale experiment device of the fiery extinguishing property of spraying.
Background technology
In there is the environment of high-pressure oil passage, once the transfer pipeline of high pressure breaks, leakage etc., liquid just can eject, and because the ignition temperature of mist of oil is far below corresponding combustion oil flash, mist of oil is very easily ignited and initiation fire; Because flammable explosive gas leakage formation jet flame draws the accident cases such as breaking out of fire, blast, happen occasionally in recent years, the people's life and property safety in serious threat.In addition along with scientific and technical development, various fuel pump deliver lines are more and more concentrated, make the fire extinguishing passage in this type of place become narrow, and pipeline becomes and stops that the barrier personnel of being not easy to of fire extinguishing enter fire control, bring very large difficulty to fire extinguishing.Therefore generally intensive at inflammable thing conveyance conduit, passageway for fire apparatus is smooth and have the dangerous Space, Places such as barrier such as pipeline, adopt arranged automatic total flooding fire-fighting system control fire more, and extinguishing chemical adopts the gas extinguishing agent with good spatial dispersion mostly.
Just because of the fiery grave danger of spraying, people are mainly the simulated experiments that adopts large scale for the fiery fire extinguishing research of spraying at present, and simulated experiment time and effort consuming, the cost of large scale are high, difficult parameters to be to control, and seldom consider the impact of the existence of barrier on the scene of a fire; At present for gas extinguishing agent, for the small size test experiments research of spraying fire performance, belong to blank.
Utility model content
The purpose of this utility model is just to provide a kind of atomizing burner of reliable, easy and simple to handle mensurated gas composition extinguishing chemical extinguishing property, be a kind of for measuring one pack system and multicomponent compound fire-extinguishing agent for the small device sizes of the fiery extinguishing property of spraying, fill up existing gas extinguishing agent for the blank of the fiery extinguishing property small-scale experiment test of spraying.
The utility model is that technical solution problem adopts following technical scheme:
The design feature of the atomizing burner of the utility model mensurated gas composition extinguishing chemical extinguishing property is: by vertical tube, be connected with transverse tube and form " L " type gas transmission pipeline, described vertical tube is provided with oxidant delivery port on the end face of the top of its sealing, and the right part mouth of pipe of described transverse tube is openings; Gas extinguishing agent delivery port is on half section, the left side pipe sidewall of described transverse tube, and on the flow direction along gas extinguishing agent, the downstream position that is in gas extinguishing agent delivery port is provided with porous honeycomb screens; Fuel tube is in half section, the right side pipe of described transverse tube with the form of coaxial inner sleeve, the input pipeline section of described fuel tube runs through through nested hole and stretches out transverse tube sidewall on described transverse tube sidewall, the atomizer that is threaded on the output mouth of pipe of described fuel tube, and be provided with disc-type baffle plate at the neck of described atomizer; Transverse tube pipe end at described " L " type gas transmission pipeline connects heat-resistant glass tube, forms spray burning chamber in described heat-resistant glass tube.
The design feature of the atomizing burner of the utility model mensurated gas composition extinguishing chemical extinguishing property is also:
Described fuel tube is on the tube wall of fuel-supply pipe, to be provided with the water-cooling jacket that can introduce recirculated cooling water.
Described fuel tube runs through described porous honeycomb screens in the transverse tube of described " L " type gas transmission pipeline, and to take described porous honeycomb screens be support.
Described gas extinguishing agent delivery port, on the flow direction along gas extinguishing agent, is on different axial locations and is provided with many, and each gas extinguishing agent delivery port can be selected conducting.
The structure of described atomizer and disc-type baffle plate is set to: described disc-type baffle plate is joined by the external screw thread on the discharging mouth of pipe of its internal thread and fuel-supply pipe; Described atomizer is to be connected with the internal thread on the described discharging mouth of pipe with its external screw thread; The right part mouth of pipe of the transverse tube of described " L " type mixed gas delivery pipeline is concordant with described disc-type baffle plate.
Described atomizer is single injector atomizer, by hexa-prism hollow casing and cylindrical hollow atomization core, formed, cylindrical hollow atomization core is connected with the internal thread of hexa-prism hollow casing through the external screw thread of screw thread annulus, and hexa-prism hollow casing is formed by its top circular plane, hollow six prisms, the screw thread blank pipe with internal and external threads; Wherein top circular plane is to be connected transition with the conical surface with hollow six prisms, at the place, centre position of top circular plane, is provided with spray orifice, and tubular screw thread blank pipe is connected with described spray orifice with the inner chamber of hollow six prisms; Described cylindric hollow atomization core comprises hollow cylinder, screw thread annulus and dismantles groove with the hollow cylinder of opening; At the top of described hollow cylinder, be provided with six triangular chutes from a bit stretching to edge direction in its end face; The waist of hollow cylinder is provided with two and is in the locational circular opening of same level; The degree of depth of the inner chamber of the aspect ratio hexa-prism hollow casing of hollow cylinder is few, and the external diameter of screw thread annulus is larger than the external diameter of hollow cylinder; Hollow cylinder dismounting groove with opening is directly connected with screw thread annulus, and inner chamber and the hollow cylinder inner chamber of with the hollow cylinder of opening, dismantling groove are connected through screw thread annulus core; In the time of in described cylindrical hollow atomization core is screwed into hexa-prism hollow casing, the bottom of the described dismounting of the hollow cylinder with opening groove is concordant with the bottom of screw thread blank pipe.
What in described gas extinguishing agent delivery port, pass into is one-component gas extinguishing agent or multicomponent gas extinguishing chemical, described gas extinguishing agent refers under normal temperature to be the extinguishing chemical of gaseous state and lower boiling liquid-state extinguishing agent, comprise: carbon dioxide, nitrogen, IG541 inert gas, heptafluoro-propane, HFC-236fa, fluoroform, Kazakhstan dragon 1301, Kazakhstan dragon 1211, CF3I, perfluor hexanone and 2-bromo-3,3,3-trifluoro propene.
At described oxidant delivery port, importing oxidant is air or purity oxygen; And at described oxidant delivery port, can import the oxidant of different temperatures.
What in described fuel tube, import is liquid fuel or gaseous fuel.
Compared with the prior art, the utility model beneficial effect is embodied in:
1, the utility model provide one for one pack system and multicomponent gas extinguishing chemical for the experimental provision of the fiery extinguishing property test of spraying, filled up gas extinguishing agent and for barrier, had the blank of the extinguishing property of lower spraying flame.
2, the utility model has designed a set of cooling tube system outward at cartridge, has reduced the impact of the temperature of oxidant and extinguishing chemical on fuel.
3, in the utility model, arranging of disc-type baffle plate can avoid extinguishing chemical and oxidant mixed airflow to produce power fire extinguishing impact to the spraying fire at nozzle place; Also simulated well the existence of obstacle in the true scene of a fire to the impact of putting out a fire, thereby make this device experiment test parameter have more reliability simultaneously.
4, disc-type baffle plate in the utility model, single injector atomizer are all quick detachable, for change experiment condition, cleaning shower nozzle, stop up very convenient.
5, the utility model principle is simple, easy to operate, reproducible.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is combustion chamber structural representation in the utility model;
Fig. 3 a is the discharging mouth of pipe schematic diagram of fuel-supply pipe in the utility model;
Fig. 3 b is disc-type baffle plate schematic diagram in the utility model;
Fig. 4 a is atomizer shell schematic diagram in the utility model;
Fig. 4 b is the cylindric hollow atomization cored structure schematic diagram of atomizer in the utility model;
The specific embodiment
Referring to Fig. 1 and 2, in the present embodiment, the version of the atomizing burner of mensurated gas composition extinguishing chemical extinguishing property is by vertical tube, to be connected with transverse tube to form " L " type gas transmission pipeline 16, vertical tube is provided with oxidant delivery port 1 on the end face of the top of its sealing, and the right part mouth of pipe of transverse tube is openings; Gas extinguishing agent delivery port 2 is on half section, the left side pipe sidewall of transverse tube, and on the flow direction along gas extinguishing agent, the downstream position that is in gas extinguishing agent delivery port 2 is provided with porous honeycomb screens 3; Fuel tube 11 is in half section, the right side pipe of transverse tube with the form of coaxial inner sleeve, the input pipeline section of fuel tube 11 runs through nested hole 14 and stretches out transverse tube sidewall on transverse tube sidewall, the atomizer 5 that is threaded on the output mouth of pipe of fuel tube 11, and be provided with disc-type baffle plate 7 at the neck of atomizer 5; Transverse tube pipe end at " L " type gas transmission pipeline 16 connects heat-resistant glass tube 6, forms spray burning chamber 17 in heat-resistant glass tube 6.
Shown in Fig. 1, " L " type gas transmission pipeline 16 is to be placed in right side support 9 and left side to prop up and add on 15, and the relative position of right side support 9 and left side brackets 15 can regulate, for stabilising arrangement " L " type gas transmission pipeline 16; Heat-resistant glass tube 6 is to utilize fluid sealant and the nested connection that pad 8 forms is each other set at the right-hand member of " L " type gas transmission pipeline 16, for guaranteeing that extraneous air-flow can not exert an influence to flame.
In the present embodiment, corresponding structure setting also comprises:
Shown in Fig. 1; fuel tube 11 is on the tube wall of fuel-supply pipe 12, to be provided with the water-cooling jacket 4 that can introduce recirculated cooling water; what be connected with water-cooling jacket 4 has respectively cooling water inlet 13 and a coolant outlet 10; in cooling water inlet, 13 pressure carry cooling water that it is circulated in water-cooling jacket 4; through coolant outlet 10, flow out again, realize the protection that cools to fuel-supply pipe 12.
Referring to Fig. 3 a, Fig. 3 b, Fig. 4 a and Fig. 4 b, in the present embodiment, corresponding structure setting also comprises:
The structure of atomizer 5 and disc-type baffle plate 7 is set to: disc-type baffle plate 7 is joined by the external screw thread 19A on the discharging mouth of pipe 18 of its internal thread 19B and fuel-supply pipe 12; Atomizer 5 is to be connected with the internal thread 20B on the discharging mouth of pipe 18 with its external screw thread 20A; The right part mouth of pipe of the transverse tube of " L " type mixed gas delivery pipeline 16 is concordant with disc-type baffle plate 7, disc-type baffle plate 7 has been avoided carrying the mist of coming directly to enter the spraying nucleus of flame district of single injector atomizer 5 from " L " type gas transmission pipeline 16, produces fluid dynamic impact; Mist is streamed and be diffused into spraying nucleus of flame district, simulated well and extinguished the real scene of putting out a fire after obstacle, make measurement parameter have more reliability; The disc-type baffle plate 7 of different size can be set.
Shown in Fig. 4 a and Fig. 4 b, in the present embodiment, atomizer 5 adopts single injector atomizer, by hexa-prism hollow casing 28 and cylindrical hollow atomization core 34, formed, cylindrical hollow atomization core 34 is connected through the external screw thread 26B of screw thread annulus 33 and the internal thread 26A of hexa-prism hollow casing 28, and hexa-prism hollow casing 28 is formed by its top circular plane 21, hollow six prisms 24, the screw thread blank pipe 25 with internal and external threads; Wherein top circular plane 21 is to be connected transition with the conical surface 23 with hollow six prisms 24, at the place, centre position of top circular plane 21, is provided with spray orifice 22, and tubular screw thread blank pipe 25 is connected with spray orifice 22 with the inner chamber 27 of hollow six prisms 24; Cylindric hollow atomization core 34 comprises hollow cylinder 31, screw thread annulus 33 and dismantles groove 32 with the hollow cylinder of opening; At the top of hollow cylinder 31, be provided with six triangular chutes 30 from a bit stretching to edge direction in its end face; The waist of hollow cylinder 31 is provided with two and is in the locational circular opening 29 of same level; The degree of depth of the inner chamber 27 of the aspect ratio hexa-prism hollow casing 28 of hollow cylinder 31 is few, and the external diameter of screw thread annulus 33 is larger than the external diameter of hollow cylinder 31; Hollow cylinder dismounting groove 32 with opening is directly connected with screw thread annulus 33, and inner chamber and hollow cylinder 31 inner chambers of with the hollow cylinder of opening, dismantling groove 32 are connected through screw thread annulus 33 cores; In the time of in cylindrical hollow atomization core 34 is screwed into hexa-prism hollow casing 28, the bottom of dismantling groove 32 with the hollow cylinder of opening is concordant with the bottom of screw thread blank pipe 25.Single injector atomizer 5 can produce injected fuel spray, lights rear formation turbulent flow jet flames, the turbulent flow jet flames after analog obstacle thing; In the present embodiment, single injector atomizer 5 atomizing effects are good, and are quick detachablely convenient to stop up time cleaning.
In concrete enforcement, what in gas extinguishing agent delivery port 2, pass into is one-component gas extinguishing agent or multicomponent gas extinguishing chemical, gas extinguishing agent refers under normal temperature to be the extinguishing chemical of gaseous state and lower boiling liquid-state extinguishing agent, comprise: carbon dioxide, nitrogen, IG541 inert gas, heptafluoro-propane, HFC-236fa, fluoroform, Kazakhstan dragon 1301, Kazakhstan dragon 1211, CF3I, perfluor hexanone and 2-bromo-3,3,3-trifluoro propene etc., wherein lower boiling liquid-state extinguishing agent typically refers to boiling point not higher than 50oC; At oxidant delivery port 1, importing oxidant is air or purity oxygen; And at oxidant delivery port 1, can import the oxidant of different temperatures, the impact for the oxidant gas of studying different temperatures on extinguishing chemical extinguishing property, flame structure; What in fuel tube 11, import is liquid fuel or gaseous fuel, comprising: methane gas, propane gas and alcohol, normal heptane, gasoline and diesel oil etc.
Using method:
1, external oxidant supply system on oxidant delivery port 1; At gas extinguishing agent delivery port, 2 places connect gas extinguishing agent supply system, the supply system of the extinguishing chemical that will test; External fuel system on fuel-supply pipe 12, in cooling water inlet 13 and the external cooling water recirculation system of coolant outlet 10.
2, start cooling water recirculation system in external fuel system and water-cooling jacket, be adjusted to and set after flow in the 5 spray orifices igniting of single injector atomizer, then regulate gradually oxidant supply system, make the flame of spray orifice keep stable.
3, after flame stabilization, open external gas extinguishing agent supply system, in gas extinguishing agent delivery port 2, pass into gas extinguishing agent, gas extinguishing agent is evenly mixed through cellular screens 3 in " L " type gas transmission pipeline 16 with oxidant, the extinguishing chemical that arrives atomizer 5 places makes fray-out of flame, the gas extinguishing agent while recording fray-out of flame and the flow of oxidant.
4, after experiment finishes, first close extinguishing chemical supply system, then close fuel system, keep oxidant inlet unimpeded, treat that the spontaneous combustion of single injector nozzle flame is thoroughly extinguished and close again oxidant inlet, burned complete to guarantee the residual fuel in fuel-supply pipe 12; The circulatory system by cooling water in water-cooling jacket 4 is drawn out of the water in water-cooling jacket 4 completely again.
Claims (9)
1. the atomizing burner of a mensurated gas composition extinguishing chemical extinguishing property, it is characterized in that: by vertical tube, be connected with transverse tube and form " L " type gas transmission pipeline (16), described vertical tube is provided with oxidant delivery port (1) on the end face of the top of its sealing, and the right part mouth of pipe of described transverse tube is openings; Gas extinguishing agent delivery port (2) is on half section, the left side pipe sidewall of described transverse tube, and on the flow direction along gas extinguishing agent, the downstream position that is in gas extinguishing agent delivery port (2) is provided with porous honeycomb screens (3); Fuel tube (11) is in half section, the right side pipe of described transverse tube with the form of coaxial inner sleeve, the input pipeline section of described fuel tube (11) runs through and stretches out transverse tube sidewall through nested hole (14) on described transverse tube sidewall, the atomizer (5) that is threaded on the output mouth of pipe of described fuel tube (11), and be provided with disc-type baffle plate (7) at the neck of described atomizer (5); Transverse tube pipe end at described " L " type gas transmission pipeline (16) connects heat-resistant glass tube (6), forms spray burning chamber (17) in described heat-resistant glass tube (6).
2. the atomizing burner of mensurated gas composition extinguishing chemical extinguishing property according to claim 1, is characterized in that: described fuel tube (11) is on the tube wall of fuel-supply pipe (12), to be provided with the water-cooling jacket (4) that can introduce recirculated cooling water.
3. the atomizing burner of mensurated gas composition extinguishing chemical extinguishing property according to claim 1, it is characterized in that: described fuel tube (11) runs through described porous honeycomb screens (3) in the transverse tube of described " L " type gas transmission pipeline (16), and take described porous honeycomb screens (3) as supporting.
4. the atomizing burner of mensurated gas composition extinguishing chemical extinguishing property according to claim 1, it is characterized in that: described gas extinguishing agent delivery port (2) is on the flow direction along gas extinguishing agent, be on different axial locations and be provided with many, each gas extinguishing agent delivery port (2) can be selected conducting.
5. the atomizing burner of mensurated gas composition extinguishing chemical extinguishing property according to claim 2, is characterized in that: the structure of described atomizer (5) and disc-type baffle plate (7) is set to: described disc-type baffle plate (7) is joined by the external screw thread (19A) on the discharging mouth of pipe (18) of its internal thread (19B) and fuel-supply pipe (12); Described atomizer (5) is to be connected with the internal thread (20B) on the described discharging mouth of pipe (18) with its external screw thread (20A); The right part mouth of pipe of the transverse tube of described " L " type mixed gas delivery pipeline (16) is concordant with described disc-type baffle plate (7).
6. the atomizing burner of mensurated gas composition extinguishing chemical extinguishing property according to claim 1, it is characterized in that: described atomizer (5) is single injector atomizer, by hexa-prism hollow casing (28) and cylindrical hollow atomization core (34), formed, cylindrical hollow atomization core (34) is connected through the external screw thread (26B) of screw thread annulus (33) and the internal thread (26A) of hexa-prism hollow casing (28), and hexa-prism hollow casing (28) is formed by its top circular plane (21), hollow six prisms (24), the screw thread blank pipe (25) with internal and external threads; Wherein top circular plane (21) is to be connected transition with the conical surface (23) with hollow six prisms (24), place, centre position in top circular plane (21) is provided with spray orifice (22), and tubular screw thread blank pipe (25) is connected with described spray orifice (22) with the inner chamber (27) of hollow six prisms (24); Described cylindric hollow atomization core (34) comprises hollow cylinder (31), screw thread annulus (33) and dismantles groove (32) with the hollow cylinder of opening; At the top of described hollow cylinder (31), be provided with six triangular chutes (30) from a bit stretching to edge direction in its end face; The waist of hollow cylinder (31) is provided with two and is in the locational circular opening of same level (29); The degree of depth of the inner chamber (27) of the aspect ratio hexa-prism hollow casing (28) of hollow cylinder (31) is few, and the external diameter of screw thread annulus (33) is larger than the external diameter of hollow cylinder (31); Hollow cylinder dismounting groove (32) with opening is directly connected with screw thread annulus (33), and inner chamber and hollow cylinder (31) inner chamber of with the hollow cylinder of opening, dismantling groove (32) are connected through screw thread annulus (33) core; When described cylindrical hollow atomization core (34) is screwed in hexa-prism hollow casing (28), the bottom of the described dismounting groove of the hollow cylinder with opening (32) is concordant with the bottom of screw thread blank pipe (25).
7. the atomizing burner of mensurated gas composition extinguishing chemical extinguishing property according to claim 1, it is characterized in that: what in described gas extinguishing agent delivery port (2), pass into is one-component gas extinguishing agent or multicomponent gas extinguishing chemical, described gas extinguishing agent refers under normal temperature to be the extinguishing chemical of gaseous state and lower boiling liquid-state extinguishing agent, comprise: carbon dioxide, nitrogen, IG541 inert gas, heptafluoro-propane, HFC-236fa, fluoroform, Kazakhstan dragon 1301, Kazakhstan dragon 1211, CF3I, perfluor hexanone and 2-bromo-3,3,3-trifluoro propene.
8. the atomizing burner of mensurated gas composition extinguishing chemical extinguishing property according to claim 1, is characterized in that: at described oxidant delivery port (1), importing oxidant is air or purity oxygen; And at described oxidant delivery port (1), can import the oxidant of different temperatures.
9. the atomizing burner of mensurated gas composition extinguishing chemical extinguishing property according to claim 1, is characterized in that: what in described fuel tube (11), import is liquid fuel or gaseous fuel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320657515.XU CN203564677U (en) | 2013-10-23 | 2013-10-23 | Spray-type burner for determining fire extinguishing performance of gaseous extinguishing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320657515.XU CN203564677U (en) | 2013-10-23 | 2013-10-23 | Spray-type burner for determining fire extinguishing performance of gaseous extinguishing agent |
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| CN203564677U true CN203564677U (en) | 2014-04-30 |
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| CN201320657515.XU Expired - Lifetime CN203564677U (en) | 2013-10-23 | 2013-10-23 | Spray-type burner for determining fire extinguishing performance of gaseous extinguishing agent |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103520865A (en) * | 2013-10-23 | 2014-01-22 | 中国科学技术大学 | Atomizing burner for determining fire extinguishing performance of gaseous extinguishing agent |
| CN106908569A (en) * | 2015-12-23 | 2017-06-30 | 昌信大学产学合作团 | The flame spread of extinguishing chemical prevents performance testing device |
| CN109609297A (en) * | 2018-12-28 | 2019-04-12 | 中山市天图精细化工有限公司 | A kind of Multifunctional aerosol agent |
| CN114217009A (en) * | 2021-12-24 | 2022-03-22 | 中国科学技术大学 | Device suitable for gaseous, liquid fire extinguishing agent performance aassessment |
-
2013
- 2013-10-23 CN CN201320657515.XU patent/CN203564677U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103520865A (en) * | 2013-10-23 | 2014-01-22 | 中国科学技术大学 | Atomizing burner for determining fire extinguishing performance of gaseous extinguishing agent |
| CN103520865B (en) * | 2013-10-23 | 2015-11-18 | 中国科学技术大学 | A kind of atomizing burner of mensurated gas composition extinguishing chemical extinguishing property |
| CN106908569A (en) * | 2015-12-23 | 2017-06-30 | 昌信大学产学合作团 | The flame spread of extinguishing chemical prevents performance testing device |
| CN109609297A (en) * | 2018-12-28 | 2019-04-12 | 中山市天图精细化工有限公司 | A kind of Multifunctional aerosol agent |
| CN114217009A (en) * | 2021-12-24 | 2022-03-22 | 中国科学技术大学 | Device suitable for gaseous, liquid fire extinguishing agent performance aassessment |
| CN114217009B (en) * | 2021-12-24 | 2022-12-30 | 中国科学技术大学 | Device suitable for gaseous, liquid fire extinguishing agent performance aassessment |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140430 Effective date of abandoning: 20151118 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |