CN107551425A - The gas extinguishing agent jet pipe and application method of a kind of lithium ion battery case extinguishing device - Google Patents
The gas extinguishing agent jet pipe and application method of a kind of lithium ion battery case extinguishing device Download PDFInfo
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- CN107551425A CN107551425A CN201710856352.0A CN201710856352A CN107551425A CN 107551425 A CN107551425 A CN 107551425A CN 201710856352 A CN201710856352 A CN 201710856352A CN 107551425 A CN107551425 A CN 107551425A
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- jet pipe
- extinguishing
- battery case
- mouth shape
- bell mouth
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Abstract
The present invention relates to a kind of gas extinguishing agent jet pipe of lithium ion battery case extinguishing device and application method.Jet pipe is fixed on battery case inner bin, jet pipe connection end is connected with extinguishing device；After extinguishing device starts, extinguishing chemical enters jet pipe, under the promotion of high-pressure driving gas, extinguishing chemical flows into bell mouth shape import with gases at high pressure, sprayed after through straight tube by bell mouth shape spout, extinguishing chemical carries out atomization acceleration by some Laval nozzles, by extinguishing chemical is quick, the diverse location that is evenly distributed in battery case, reach and quickly put out lithium-ion electric Pool fire, effectively suppress the purpose of battery thermal runaway.Gas extinguishing agent nozzle structure is simple, easy to process；The present invention can quickly put out lithium-ion electric Pool fire, effectively suppress battery thermal runaway.
Description
Technical field
The present invention relates to a kind of extinguishing chemical jet pipe, more particularly to a kind of extinction using gas of lithium ion battery case extinguishing device
Agent jet pipe and application method.
Background technology
In recent years, to ensure national energy security and effectively reducing carbon emission amount, new-energy automobile has become Chinese big
One of emerging strategic industries of power cultivation and development.Electrokinetic cell is the important motivity source of electric automobile, electrokinetic cell
Security is first had to consider and solved the problems, such as during Development of Electric Vehicles.Lithium ion battery because its have it is higher than energy,
Operating voltage is high, self-discharge rate is low, has extended cycle life and the characteristics of environmental pollution is small, is the most electronic vapour of practical value at present
Vehicular dynamic battery.However, the safety hazards of the lithium-ion battery systems characterized by thermal runaway happen occasionally, electricity annoying
The promotion and application of electrical automobile.Lithium ion battery characteristic determines situations such as lithium battery spontaneous combustion, blast, especially some baby batteries
Manufacturing enterprise's battery quality can not more ensure, to battery in itself, vehicle and personnel cause potential safety hazard.
For lithium-ion electric Pool fire present situation, researcher have developed the special gas fire extinguishing for lithium-ion electric Pool fire of putting out a fire to save life and property
Device.But fire-smothering gear extinguishing chemical is mostly spurted by single-nozzle, because single-nozzle spray regime is small,
And can not be effectively atomized for higher boiling extinguishing chemical, can not extinguishing chemical is quick, be evenly distributed to inside battery case, it is impossible to effectively
Put out a fire to save life and property lithium-ion electric Pool fire, suppress the development of battery thermal runaway and fire.
The content of the invention
In view of the problem of prior art is present, the invention provides a kind of extinction using gas of lithium ion battery case extinguishing device
Agent jet pipe and application method, extinguishing chemical carry out atomization acceleration by some Laval nozzles on jet pipe, reach it is quick put out lithium from
Sub- battery fire, effectively suppress the purpose of battery thermal runaway.
To achieve the above object, concrete technical scheme is the present invention：A kind of lithium ion battery case extinguishing device extinction using gas
Agent jet pipe, one end of jet pipe is closure end, and the other end is connection end, it is characterised in that：On 180 ° of semi circular surfaces of the jet pipe,
Some Laval nozzles are provided with, some Laval nozzles are divided into two rows and are horizontally disposed with, and some Laval nozzles often arranged are equal
To be arranged at intervals, some Laval nozzles of lower row are respectively between some Laval nozzles of each pair for the row of being correspondingly arranged at, and two
The hole heart of Laval nozzle is arranged in the range of 30 °~60 ° of semi circular surface；
The Laval nozzle is made up of bell mouth shape import, straight tube, bell mouth shape spout, is straight in the middle part of jet pipe wall
Pipe, the position of straight tube and jet pipe outer wall are bell mouth shape spout, and the position of straight tube and nozzle wall is bell mouth shape import.
A kind of application method of lithium ion battery case extinguishing device gas extinguishing agent jet pipe, it is characterised in that：Jet pipe is consolidated
It is scheduled on battery case inner bin, jet pipe connection end is connected with extinguishing device；
After extinguishing device starts, extinguishing chemical enters jet pipe, and under the promotion of high-pressure driving gas, extinguishing chemical flows into gases at high pressure
Bell mouth shape import, through straight tube after sprayed by bell mouth shape spout, extinguishing chemical by some Laval nozzles carry out atomization plus
Speed, by extinguishing chemical is quick, the diverse location that is evenly distributed in battery case, reaches and quickly put out lithium-ion electric Pool fire, effectively
Suppress the purpose of battery thermal runaway.
The invention has the advantages that gas extinguishing agent nozzle structure is simple, it is easy to process；Jet pipe cloth inside battery case
Seated position is not influenceed by battery box structure.Some Laval nozzles on jet pipe can be such that extinguishing chemical is well atomized, extinguishing chemical
Spray regime is big.Some Laval nozzles can accelerate extinguishing chemical to flow, and extinguishing chemical jet velocity is fast, be distributed in battery case equal
It is even.The present invention can quickly put out lithium-ion electric Pool fire, effectively suppress battery thermal runaway.
Brief description of the drawings
Fig. 1 is the whole structural representation of the present invention；
Fig. 2 is the partial enlarged drawing of the present invention；
Fig. 3 is Fig. 2 B-B sectional views；
Fig. 4 is Fig. 3 A-A sectional views.
Embodiment
As shown in Figures 1 to 4, a kind of lithium ion battery case extinguishing device gas extinguishing agent jet pipe, one end of jet pipe 1 is envelope
Stifled end 1-1, the other end is connection end 1-2.
On 180 ° of semi circular surfaces of jet pipe 1, some Laval nozzle 1-3 are provided with, some Laval nozzle 1-3 points are upper and lower
Two row of horizontal are set, and some Laval nozzle 1-3 often arranged are to be arranged at intervals, some Laval nozzle 1-3 difference of lower row
Between some Laval nozzle 1-3 of each pair for the row of being correspondingly arranged at, the two row's Laval nozzle 1-3 hole heart is in semi circular surface
In the range of 30 °~60 °.
Laval nozzle 1-3 is made up of bell mouth shape import 1-3-1, straight tube 1-3-2, bell mouth shape spout 1-3-3, is being sprayed
The middle part of the wall of pipe 1 is straight tube 1-3-2, and the position of straight tube 1-3-2 and the outer wall of jet pipe 1 is bell mouth shape spout 1-3-3, straight tube
1-3-2 and the inwall of jet pipe 1 position are bell mouth shape import 1-3-1.
Bell mouth shape import 1-3-1 be from large to small to cone ports, bell mouth shape spout 1-3-3 change from small to big to
Cone ports.
Jet pipe 1 is metal material, has certain compressive resistance, and nominal operating pressure is not less than 1.5Mpa.
A kind of application method of lithium ion battery case extinguishing device gas extinguishing agent jet pipe,
The horn mouth mouth of pipe of jet pipe 1 is docked with spherical plug, is connected jet pipe 1 with spherical plug external screw thread by kink nut
Closure end 1-1 is formed, ensures that jet pipe 1 is connected reliable, good seal with plug.
The concave ball surfaces of the connection end 1-2 mouths of pipe of jet pipe 1 are docked with extinguishing device globe joint, with kink nut check,
Ensure that jet pipe 1 is connected firmly with extinguishing device, good seal performance.
Jet pipe 1 is fixed on battery case inner bin, after extinguishing device starts, Novec1230 gas extinguishing agents enter
Jet pipe 1, under the promotion of high-pressure driving gas nitrogen, Novec1230 gas extinguishing agents flow into bell mouth shape with gases at high pressure and entered
Mouthful 1-3-1, through straight tube 1-3-2 after sprayed by bell mouth shape spout 1-3-3, if Novec1230 gas extinguishing agents pass through dry drawing
Wa Er nozzles 1-3 carries out atomization acceleration, by Novec1230 gas extinguishing agents are quick, the different positions that are evenly distributed in battery case
Put, reach and quickly put out lithium-ion electric Pool fire, effectively suppress the purpose of battery thermal runaway.
According to the physical dimension of lithium ion battery case, the metal nozzle 1 of appropriate diameter is chosen,
The material of jet pipe 1 is metal copper tube, and copper tube external diameter is 8mm, internal diameter 6mm.
Above-described embodiment is only used for further illustrating a kind of lithium ion battery case extinguishing device gas extinguishing agent of the present invention
Jet pipe, but the invention is not limited in embodiment, every technical spirit according to the present invention are made any to above example
Simple modification, equivalent change and modification, each fall within the protection domain of technical solution of the present invention.
Claims (3)
1. a kind of lithium ion battery case extinguishing device gas extinguishing agent jet pipe, jet pipe（1）One end for closure end（1-1）, it is another
Hold as connection end（1-2）, it is characterised in that：In the jet pipe（1）180 ° of semi circular surfaces on, be provided with some Laval nozzles（1-
3）, some Laval nozzles（1-3）It is divided into two rows to be horizontally disposed with, some Laval nozzles often arranged（1-3）It is interval
Set, some Laval nozzles of lower row（1-3）Some Laval nozzles of each pair for the row of being correspondingly arranged at respectively（1-3）It
Between, two row's Laval nozzles（1-3）The hole heart in the range of 30 °~60 ° of semi circular surface；
The Laval nozzle（1-3）By bell mouth shape import（1-3-1）, straight tube（1-3-2）, bell mouth shape spout（1-3-3）
Form, in jet pipe（1）The middle part of wall is straight tube（1-3-2）, straight tube（1-3-2）With jet pipe（1）The position of outer wall is loudspeaker
Mouth shape spout（1-3-3）, straight tube（1-3-2）With jet pipe（1）The position of inwall is bell mouth shape import（1-3-1）.
A kind of 2. lithium ion battery case extinguishing device gas extinguishing agent jet pipe according to claim 1, it is characterised in that：Institute
The jet pipe stated（1）For metal material, there is compressive resistance, nominal operating pressure is not less than 1.5Mpa.
3. a kind of application method of lithium ion battery case extinguishing device gas extinguishing agent jet pipe using described in claim 1, its
It is characterised by：By jet pipe（1）It is fixed on battery case inner bin,
By jet pipe（1）Connection end（1-2）It is connected with extinguishing device；
After extinguishing device starts, extinguishing chemical enters jet pipe（1）, under the promotion of high-pressure driving gas, extinguishing chemical is with gases at high pressure
Flow into bell mouth shape import（1-3-1）, through straight tube（1-3-2）Afterwards by bell mouth shape spout（1-3-3）Spray, extinguishing chemical passes through
Some Laval nozzles（1-3）Atomization acceleration is carried out, by extinguishing chemical is quick, the diverse location that is evenly distributed in battery case, is reached
To quickly lithium-ion electric Pool fire is put out, effectively suppress the purpose of battery thermal runaway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710856352.0A CN107551425A (en) | 2017-09-21 | 2017-09-21 | The gas extinguishing agent jet pipe and application method of a kind of lithium ion battery case extinguishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710856352.0A CN107551425A (en) | 2017-09-21 | 2017-09-21 | The gas extinguishing agent jet pipe and application method of a kind of lithium ion battery case extinguishing device |
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| CN107551425A true CN107551425A (en) | 2018-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710856352.0A Pending CN107551425A (en) | 2017-09-21 | 2017-09-21 | The gas extinguishing agent jet pipe and application method of a kind of lithium ion battery case extinguishing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109011261A (en) * | 2018-10-11 | 2018-12-18 | 中国民用航空总局第二研究所 | Environmentally friendly aircraft hand fire extinguisher |
| CN112952177A (en) * | 2021-01-25 | 2021-06-11 | 中国第一汽车股份有限公司 | Power battery fire suppression device and power battery |
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| DE19601609A1 (en) * | 1996-01-18 | 1997-07-24 | Wilfried Lachmund | Digital battery-operated water flow meter |
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| CN202434667U (en) * | 2011-10-12 | 2012-09-12 | 浙江南都电源动力股份有限公司 | Cooling and safety protection device for large-sized assembled lithium ion battery |
| CN104882639A (en) * | 2015-04-28 | 2015-09-02 | 湖北长海新能源科技有限公司 | Method and device for restraining and preventing thermal runaway of lithium ion battery |
| CN107158608A (en) * | 2017-07-14 | 2017-09-15 | 成都飞航沛腾科技有限公司 | A kind of lithium battery test box with automatic fire extinguisher |
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2017
- 2017-09-21 CN CN201710856352.0A patent/CN107551425A/en active Pending
Patent Citations (5)
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|---|---|---|---|---|
| DE19601609A1 (en) * | 1996-01-18 | 1997-07-24 | Wilfried Lachmund | Digital battery-operated water flow meter |
| CN202185099U (en) * | 2011-07-20 | 2012-04-11 | 国安达消防科技(厦门)有限公司 | Automatic fire extinguishing system with dual drive multi-nozzle pipe network |
| CN202434667U (en) * | 2011-10-12 | 2012-09-12 | 浙江南都电源动力股份有限公司 | Cooling and safety protection device for large-sized assembled lithium ion battery |
| CN104882639A (en) * | 2015-04-28 | 2015-09-02 | 湖北长海新能源科技有限公司 | Method and device for restraining and preventing thermal runaway of lithium ion battery |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109011261A (en) * | 2018-10-11 | 2018-12-18 | 中国民用航空总局第二研究所 | Environmentally friendly aircraft hand fire extinguisher |
| CN112952177A (en) * | 2021-01-25 | 2021-06-11 | 中国第一汽车股份有限公司 | Power battery fire suppression device and power battery |
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Application publication date: 20180109 |