CN106693244A - Liquid nitrogen fire extinguishing method - Google Patents
Liquid nitrogen fire extinguishing method Download PDFInfo
- Publication number
- CN106693244A CN106693244A CN201610990689.6A CN201610990689A CN106693244A CN 106693244 A CN106693244 A CN 106693244A CN 201610990689 A CN201610990689 A CN 201610990689A CN 106693244 A CN106693244 A CN 106693244A
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- CN
- China
- Prior art keywords
- liquid nitrogen
- fire
- storage tank
- fire extinguishing
- extinguishing
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- 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.)
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Classifications
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C19/00—Hand fire-extinguishers in which the extinguishing substance is expelled by an explosion; Exploding containers thrown into the fire
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Packages (AREA)
Abstract
The invention relates to a liquid nitrogen fire extinguishing method. The method includes the following steps of equipment and material preparation, wherein a storage tank for storing and transporting liquid nitrogen and a fire extinguishing tank for split packaging of liquid nitrogen at site are prepared; liquid nitrogen storage and transport, wherein the storage tank is used for preserving the liquid nitrogen, and the storage tank is transported to a fire extinguishing site when being used; liquid nitrogen split packaging, wherein the liquid nitrogen is pumped into the fire extinguishing tank from the storage tank at the fire extinguishing site; and the fire extinguishing site is thrown into a place on fire, a fire extinguishing pipe is broken, and fire extinguishing can be completed. By means of the method, various types of fire can be extinguished at present, the fire extinguishing effect is good, and additional harm to the environment is avoided.
Description
Technical field
The present invention relates to fire control technology, and in particular to a kind of liquid nitrogen extinguishment method.
Background technology
Fire-fighting fire extinguishing is carried out usually using water at present, or uses fire extinguisher.Fire-fight by water both economical, but water goes out
There is following defect in fire：First, electric fire can not be gone out with water, next grease type is caught fire and can not be gone out with water.
Fire extinguisher is divided into foam annihilator dry powder extinguisher and carbon dioxide extinguisher, and they respectively have its own feature：
Foam annihilator：There are two containers in foam annihilator, two kinds of liquid are held respectively, they are aluminum sulfate and sodium acid carbonate
Solution, two kinds of solution are not in contact with each other, and any chemical reaction does not occur.When foam annihilator is needed, fire extinguisher is stood upside down, two kinds
Solution is mixed, and will produce substantial amounts of carbon dioxide.
Dry powder extinguisher：What is filled in dry powder extinguisher is powder extinguishing agent.Powder extinguishing agent is the drying for putting out a fire
And readily flowed attritive powder, by the inorganic salts with fire extinguishing effectiveness and a small amount of additive through drying, crush, mix
Micro-solid powder constituent.Dry powder is blown out using the carbon dioxide of compression（Mainly contain sodium acid carbonate）To put out a fire.
Carbon dioxide extinguisher：Carbon dioxide has density higher, about the 1.5 of air times.At ambient pressure, liquid
Carbon dioxide can be vaporized immediately, and the liquid carbon dioxide of general 1kg can produce about 0.5 cubic metre of gas.Thus, during fire extinguishing,
Carbon dioxide can exclude air and be enclosed in the surface of burning objects or be distributed in more closed space, reduce flammable
Oxygen concentration around thing or in protective zone, produces smothering action and puts out a fire.In addition, carbon dioxide sprays from storage container
When, by liquid rapid vaporization into gas, and partial heat can be absorbed from around, play a part of cooling.
There is following different defect in above fire extinguisher：
（1）Need to be close to ignition point when in use, there is potential safety hazard；
（2）Caught fire for some alkali metal, carbon dioxide can play combustion-supporting effect, so can not use.
（3）Part fire extinguisher uses chemical agent, is unfavorable for environmental protection.
The content of the invention
It is an object of the invention to provide a kind of extinguishing method with broad field of application, can put out various types of at present
The fire of type, and good extinguishing effect, do not cause collateral damage to environment.
In order to reach above-mentioned technical purpose, the present invention provides a kind of liquid nitrogen extinguishment method, it is characterised in that comprising following step
Suddenly：
（1）Equipment and material prepare：The storage tank of storage and transporting liquid nitrogen is ready for, and for scene packing liquid nitrogen
Fire suppression bottle；
（2）Liquid nitrogen is stored and transported, and liquid nitrogen is preserved using storage tank, and storage tank is transported to fire-extinguishing location when using；
（3）Liquid nitrogen is dispensed, and liquid nitrogen is pumped into fire suppression bottle from storage tank in fire-extinguishing location；
（4）Fire suppression bottle is thrown into the place that catches fire, fire extinguishing tube is damaged, you can complete fire extinguishing.
Preferably, above-mentioned step（1）In, fire suppression bottle uses double-layer vacuum structure, it is further preferred that double-layer vacuum knot
The vacuum of structure storage tank interlayer will be in below 20Pa.
Preferably, above-mentioned step（1）In, described fire suppression bottle is that frangible fragility material makes.It is further preferred that
Fire suppression bottle is any one of glass jar, native earthen-ware pipe, porcelain jar.
The technical effects of the invention are that：Liquid nitrogen can be preserved in short-term in container at ambient pressure, when liquid nitrogen is thrown by tinning
When entering the scene of a fire, fire suppression bottle is crushed, and liquid nitrogen can cover the body surface that catches fire, and liquid nitrogen drawout comes and fire scene temperature is high, and liquid nitrogen can be fast
Speed gasification, and take away amount of heat.Liquid nitrogen gasification releases a large amount of nitrogen, can blocking oxygen.Therefore liquid nitrogen extinguishment can play drop
Temperature, and the big benefit of rapid blocking oxygen two, good extinguishing effect.
In addition, people throw fire suppression bottle when need not be close to the scene of a fire, such as using project utensil can bigger distance away from the scene of a fire, use
Safety.
Nitrogen is the gas of stabilization, is not chemically reacted with other materials typically, can be put out all types of at present
Fire, it is applied widely.
Finally, nitrogen is the main component of air, and nitrogen extinguishing is not adversely affected to environment, is conducive to protection ring
Border.
Specific embodiment：
Specific embodiment of the invention is described in detail with reference to embodiments.
Embodiment 1：
The light-duty fire of reply：
（1）Storage tank and fire suppression bottle are got out, fire suppression bottle is native terrine, and native terrine is easy to make, cheap and frangible, is adapted to fire extinguishing
The requirement of tank；Storage tank uses double-layer vacuum structure, and the vacuum of double-layer vacuum structure storage tank interlayer is high in below 20Pa
Vacuum can have good heat insulation effect, thus can preserve liquid nitrogen under environment under low pressure；
（2）Storage tank and fire suppression bottle are forgotten about it into scene of fire；
（3）Personnel put on moisture retentive glove packing liquid nitrogen, and liquid nitrogen is pumped into soil pottery fire suppression bottle from storage tank in fire-extinguishing location；
（4）Artificial that fire suppression bottle is thrown into the place that catches fire, fire extinguishing tube is crushed, and liquid nitrogen dispersion and then gasification complete fire extinguishing, depending on fire extinguishing situation,
Suitably several pieces of fire suppression bottles can be thrown into more.
（5）Personnel should be in weather gage when fire suppression bottle is used, and otherwise nitrogen is likely to result in lower air port ischaemia.Or
Person operating personnel put on breathing apparatus.
Embodiment 2：
Tackle big-and-middle-sized fire：
（1）Storage tank and fire suppression bottle are got out, fire suppression bottle is glass jar, and glass jar is easy to make, cheap and frangible, be adapted to fire extinguishing
The requirement of tank；Storage tank uses double-layer vacuum structure, and the vacuum of double-layer vacuum structure storage tank interlayer is high in below 20Pa
Vacuum can have good heat insulation effect, thus can preserve liquid nitrogen under environment under low pressure；
（2）Storage tank and fire suppression bottle are forgotten about it into scene of fire；
（3）Personnel put on moisture retentive glove packing liquid nitrogen, and liquid nitrogen is pumped into soil pottery fire suppression bottle from storage tank in fire-extinguishing location；
（4）Fire suppression bottle is thrown into the place that catches fire using flinger, unmanned plane or helicopter, fire extinguishing tube is crushed, and liquid nitrogen disperses and then gas
Change and complete fire extinguishing.Big-and-middle-sized fire, personnel can not be close to, and safe fire extinction can be accomplished using casting device.Depending on fire extinguishing situation, fit
When being thrown into several pieces of fire suppression bottles more.
（5）Personnel should be in weather gage when fire suppression bottle is used, and otherwise nitrogen is likely to result in lower air port ischaemia.Or
Person operating personnel put on breathing apparatus.
It should be appreciated that above-described embodiment is merely to illustrate and explain the present invention, it is not intended to limit the invention.It is all
The embodiment drawn based on the principle of the invention is within protection scope of the present invention.
Claims (5)
1. a kind of liquid nitrogen extinguishment method, it is characterised in that comprise the steps of：
（1）Equipment and material prepare：The storage tank of storage and transporting liquid nitrogen is ready for, and for scene packing liquid nitrogen
Fire suppression bottle；
（2）Liquid nitrogen is stored and transported, and liquid nitrogen is preserved using storage tank, and storage tank is transported to fire-extinguishing location when using；
（3）Liquid nitrogen is dispensed, and liquid nitrogen is pumped into fire suppression bottle from storage tank in fire-extinguishing location；
（4）Fire suppression bottle is thrown into the place that catches fire, fire extinguishing tube is damaged, you can complete fire extinguishing.
2. a kind of liquid nitrogen extinguishment method according to claim 1, it is characterised in that：Described step（1）In, storage tank makes
Use double-layer vacuum structure.
3. a kind of liquid nitrogen extinguishment method according to claim 1, it is characterised in that：Described step（1）In, described goes out
Cupping jar is that frangible fragility material makes.
4. a kind of liquid nitrogen extinguishment method according to claim 2, it is characterised in that：Described double-layer vacuum structure storage
Tank, the vacuum of its interlayer will be in below 20Pa.
5. a kind of liquid nitrogen extinguishment method according to claim 3, it is characterised in that：Described fire suppression bottle is glass jar, soil
Any one of earthen-ware pipe, porcelain jar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610990689.6A CN106693244A (en) | 2016-11-10 | 2016-11-10 | Liquid nitrogen fire extinguishing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610990689.6A CN106693244A (en) | 2016-11-10 | 2016-11-10 | Liquid nitrogen fire extinguishing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106693244A true CN106693244A (en) | 2017-05-24 |
Family
ID=58940789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610990689.6A Pending CN106693244A (en) | 2016-11-10 | 2016-11-10 | Liquid nitrogen fire extinguishing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106693244A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115535243A (en) * | 2022-12-01 | 2022-12-30 | 北京卓翼智能科技有限公司 | Unmanned aerial vehicle |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2159707A (en) * | 1984-06-08 | 1985-12-11 | Abg Semca | Rapid discharge extinguisher |
| CN1148990A (en) * | 1996-10-09 | 1997-05-07 | 代福全 | Vehicle carrying extinguishing gun and manufacture thereof |
| CN1488412A (en) * | 2003-08-15 | 2004-04-14 | 华 姜 | Liquid nitrogen fire-fighting gun carrier |
| CN2868339Y (en) * | 2006-02-06 | 2007-02-14 | 郑念民 | Simple throwing type fire-extinguishing bottle |
| CN102935274A (en) * | 2012-11-16 | 2013-02-20 | 青岛科而泰环境控制技术有限公司 | Liquid projection bomb, projecting device and delivery method thereof |
| CN204364730U (en) * | 2014-12-09 | 2015-06-03 | 威特龙消防安全集团股份公司 | A kind of Novel throwing formula fire extinguishing ball |
| CN105194821A (en) * | 2015-09-06 | 2015-12-30 | 奉化科创科技服务有限公司 | Long-acting storage tank of automobile liquid nitrogen extinguisher |
| CN106075776A (en) * | 2016-06-14 | 2016-11-09 | 中国矿业大学 | A kind of multipath movable type liquid nitrogen gun carriage fire extinguishing system |
-
2016
- 2016-11-10 CN CN201610990689.6A patent/CN106693244A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2159707A (en) * | 1984-06-08 | 1985-12-11 | Abg Semca | Rapid discharge extinguisher |
| CN1148990A (en) * | 1996-10-09 | 1997-05-07 | 代福全 | Vehicle carrying extinguishing gun and manufacture thereof |
| CN1488412A (en) * | 2003-08-15 | 2004-04-14 | 华 姜 | Liquid nitrogen fire-fighting gun carrier |
| CN2868339Y (en) * | 2006-02-06 | 2007-02-14 | 郑念民 | Simple throwing type fire-extinguishing bottle |
| CN102935274A (en) * | 2012-11-16 | 2013-02-20 | 青岛科而泰环境控制技术有限公司 | Liquid projection bomb, projecting device and delivery method thereof |
| CN204364730U (en) * | 2014-12-09 | 2015-06-03 | 威特龙消防安全集团股份公司 | A kind of Novel throwing formula fire extinguishing ball |
| CN105194821A (en) * | 2015-09-06 | 2015-12-30 | 奉化科创科技服务有限公司 | Long-acting storage tank of automobile liquid nitrogen extinguisher |
| CN106075776A (en) * | 2016-06-14 | 2016-11-09 | 中国矿业大学 | A kind of multipath movable type liquid nitrogen gun carriage fire extinguishing system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115535243A (en) * | 2022-12-01 | 2022-12-30 | 北京卓翼智能科技有限公司 | Unmanned aerial vehicle |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170524 |