CN104841073A - Treatment method for checking and extinguishing cotton bale internal smouldering fire point - Google Patents
Treatment method for checking and extinguishing cotton bale internal smouldering fire point Download PDFInfo
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- CN104841073A CN104841073A CN201410052240.6A CN201410052240A CN104841073A CN 104841073 A CN104841073 A CN 104841073A CN 201410052240 A CN201410052240 A CN 201410052240A CN 104841073 A CN104841073 A CN 104841073A
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- cotton
- bale
- gas
- fire point
- smouldering
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/06—Fire prevention, containment or extinguishing specially adapted for particular objects or places of highly inflammable material, e.g. light metals, petroleum products
Abstract
The invention relates to a treatment method for checking and extinguishing a cotton bale internal smouldering fire point. According to the present invention, the check part adopts a gas pressure difference means, the cotton bale internal gas is exported to the outside, and the CO gas is measured so as to determine whether the cotton bale interior contains the smouldering fire point; and the extinguishing part adopts a gas pressure difference means, and chemical fire extinguishing gas is introduced into the cotton bale interior having the smouldering fire point so as to carry out the fire extinguishing treatment. In recent years, during the domestic cotton bale storage and transportation process, the fire disasters cause by the smouldering fire point cause great economic losses. The method of the present invention is provided based on the problem in the prior art.
Description
Technical field
The invention belongs to cotton processing technique field, be specifically related to a kind of processing method that bale of cotton inside smouldering fire point is checked and put out, particularly relate to the method for process bale of cotton technique smouldering fire point and bale of cotton spontaneous combustion smouldering fire point.
Background technology
Known by Cotton in China processing industry, unginned cotton is processed to gined cotton through multiple working procedure, and in order to store in a warehouse and convenient transportation, the gined cotton be processed to also will be compressed into the bale of cotton according to industry standard.In this series of processes process, may be due to mechanical impact, the reasons such as electrical equipment electric discharge or friction of motion, gined cotton is easily caused to occur the situation of burning, carry out taking precautions against and putting out a fire although present production line takes various measure pointedly, but still some subtle smouldering fire points cannot be stopped be driven into the bale of cotton, finally leave greatly potential safety hazard.With the bale of cotton of smouldering fire point, owing to cannot find from outside, often stored by as the normal bale of cotton, smouldering fire point in the bale of cotton can with pole slowly speed expand, what have reaches tens days, and final detonation initiation fire, suffers heavy losses.
In addition, the bale of cotton at administration period, due to moisture absorption heat release, or fermentation heat release, or oxidation heat liberation to cause bale of cotton internal temperature to add up too high, cause cotton fiber spontaneous combustion, thus cause the generation of fire.This spontaneous combustion occurred in bale of cotton inside belongs to smouldering burning things which may cause a fire disaster (oxygen is insufficient) equally, the same with the technique smouldering fire point squeezing into the bale of cotton in harm, be all outside without sign at the smouldering initial stage bale of cotton, once there be smog to occur often moment detonation, the intensity of a fire reaches uncontrollable state at once.
For these two kinds of smouldering fire point disaster hidden-troubles of the bale of cotton, common treating method is exactly first detected by the bale of cotton containing smouldering fire point, and then fire extinguishing is removed a hidden danger.But because the bale of cotton compresses very consolidation, and volume ratio is comparatively large, as regular size: 1400mm × 530mm × 700mm (long × wide × high), standard weights is 227 ± 10 kilograms, density is 437 kilograms/cubic metre, and the inspection of such conventional method to fire point just becomes very difficult.As adopted infrared ray and temperature detection methods, can not use because fire point infrared ray and heat cannot penetrate very thick cotton layer.And for example X-ray image checking means, due to bale of cotton compression consolidation, thickness is large, regular industrial X-ray machine cannot penetrate cotton layer, need supporting protective equipment (plumbous room etc.) cost also very expensive in addition, and ray forms very large threat to workers ' health, these reasons all determine detection means in this most frequently used thing of X-ray imaging, are also not suitable for the inspection of bale of cotton smouldering fire point.
Cotton fiber belongs to combustible material, the bale of cotton is managed concentratedly on a large scale often in transport and storage mode, once initiation fire, suffer heavy losses, the economic loss caused due to bale of cotton fire is in recent years just up to several hundred million yuans, national correlation department with regard to this problem just at seeking solution, this patent, because above situation, provides a kind of method of practicable process bale of cotton smouldering fire point disaster hidden-trouble.
Summary of the invention
The invention provides a kind of processing method that bale of cotton inside smouldering fire point is checked and put out, particular content comprises the two parts that check and put out a fire: adopt gas pressure difference means, bale of cotton internal gas is exported to outside, by the measurement to CO gas, whether judge in the bale of cotton containing smouldering fire point; The bale of cotton adopting gas pressure difference means to be imported to by inhibition gas with smouldering fire point is inner, carries out fire extinguishing process.
Cotton fiber smouldering, namely the mass property material that imperfect combustion produces is CO gas, and under conventional environment in air CO gas content very little, generally be not more than 10PPM, adopt gas pressure difference means, the CO gas that smouldering fire point produces is exported to bale of cotton outside, by judging that to the measurement of CO gas content whether bale of cotton inside is containing smouldering fire point.Gas pressure difference means are divided into two kinds, malleation mode and negative pressure mode.Malleation mode is that the gas of certain pressure (as air) is filled with bale of cotton inside, and CO gas is exported to outside from other face.Negative pressure mode the bale of cotton is placed in the subnormal ambient vacuumized, and to allow in the bale of cotton CO gas Self-discharged to outside.
Cotton fiber is be made up of nano level micro-fibril in microstructure, and containing nano level gap and hole in micro-fibril, these gaps and hole have very strong suction-operated to oxygen molecule (diameter about 0.3 nanometer), namely cotton fiber is a kind of from storing up oxygen species, this characteristic determines cotton fiber can only adopt principles of chemistry fire-fighting mode, and for reaching the mode of fire extinguishing object by starvation, as vacuum fire extinguishing, N2 or CO extinction using gas etc. all inapplicable (verification experimental verification).Principles of chemistry fire-fighting mode refers to and adopts fire fighting gas fire extinguishing, as breathed out dragon 1301,1211, heptafluoro-propane etc., this kind of gas have physics and chemistry two side concurrently and fire-extinguishing function concurrently, physical action mainly cools, and what play major function is chemical action, shows as halogen atom active group and catches combustion activity base H+, OH-, there is burning chain-breaking reaction, reach fire extinguishing object.When the bale of cotton is put out a fire, adopt gas pressure difference means, fire fighting gas is filled with bale of cotton inside by working concentration, can quick extinguishing be realized, avoid out bag fire extinguishing and the complicated processes of secondary one-tenth bag.
The invention has the beneficial effects as follows, the characteristic material produced from smouldering fire point is started with, and derives means, provides a kind of method of practicable judgement bale of cotton smouldering fire point, solve a large technical barrier of cotton processing technique field by pressure differential.Meanwhile, indicate the correct way that cotton fiber is put out a fire, and import means by pressure differential, provide a kind of convenient method putting out bale of cotton smouldering fire point.
Accompanying drawing explanation
Accompanying drawing of the present invention is totally 2 pairs, and wherein Fig. 2 also can be used as specification digest accompanying drawing
Fig. 1 is that inflatable of the present invention implements schematic diagram
Fig. 2 is that vacuum type of the present invention implements schematic diagram
1. bale of cottons, 2. aerator, 3. source of the gas, 4. operating room in figure, 5. compress power set, 6. breather pipe, and 7.CO visits
Survey device, 8. vavuum pump group, 9. inhibition source of the gas, 10. vacuum tank
Detailed description of the invention:
Embodiment of the present invention can be divided into two types: inflatable and vacuum type.
Inflatable embodiment is as Fig. 1, and the bale of cotton 1 is placed in operating room 4, has an aerator 2 above the bale of cotton 1, is pressed on bale of cotton upper surface by compressing power set 5.During work, the air of certain pressure enters in aerator 2 by source of the gas 3 through breather pipe 6, and bale of cotton inside is filled with gradually under the effect of pressure differential, original gas meeting in the bale of cotton and insufflation gas are together overflowed from other surface, the multiple CO detectors 7 be arranged in around the bale of cotton will check spilling gas, if CO gas content is apparently higher than conventional environment content, then can judge to there is smouldering fire point in the bale of cotton.There is smouldering fire point as judged, then close source of the gas 3, start inhibition source of the gas 9 and inhibition gas (as heptafluoro-propane) is filled with bale of cotton inside, carry out fire extinguishing process.
In the present embodiment, for preventing the bale of cotton inflation from collapsing bag, need to carry out physics restriction in bale of cotton surrounding.In enforcement only with bale of cotton face for inflation face, two or more can be adopted in practicality as inflation face.Compress power set 5 and can adopt pneumatic cylinder or hydraulic cylinder, electric pushrod class device also can be adopted to realize.
Vacuum type embodiment is as Fig. 2, the bale of cotton 1 is placed in vacuum tank 10, under the effect of vavuum pump group 8, the bale of cotton 1 is in and is tending towards in the environment of vacuum gradually, under the effect of external and internal pressure difference, gas in the bale of cotton will spill into outside, and whether the multiple CO detectors 7 be arranged in around the bale of cotton will check spilling gas, just can judge in the bale of cotton containing smouldering fire point according to CO content.As containing smouldering fire point, then close vavuum pump group 8, start inhibition source of the gas 9, be filled with in vacuum tank 10 by inhibition gas (as heptafluoro-propane), under the effect of external and internal pressure difference, inhibition gas enters bale of cotton inside and realizes fire-extinguishing function concurrently.
Illustrating bale of cotton quantity in the present embodiment is 4, can require to increase and decrease according to operating efficiency and device fabrication cost etc.In addition, CO detector 7 needs to carry out specific development according to vacuum situation, otherwise between its measured value and actual value, deviation can be very large in subnormal ambient.
Claims (5)
1. the processing method that bale of cotton inside smouldering fire point is checked and put out, particular content comprises the two parts that check and put out a fire: adopt gas pressure difference means, bale of cotton internal gas is exported to outside, by the measurement to CO gas, whether judges in the bale of cotton containing smouldering fire point; The bale of cotton adopting gas pressure difference means to be imported to by inhibition gas with smouldering fire point is inner, carries out fire extinguishing process.
2. according to the method for the inner smouldering fire point of the process bale of cotton described in claim 1, the method characteristic of inspection part is, by judging that to the measurement of CO gas whether the bale of cotton is containing smouldering fire point.
3. according to the method for the inner smouldering fire point of the process bale of cotton described in claim 1, the operating characteristics of inspection part is, adopts gas pressure difference means, bale of cotton internal gas is exported to outside.
4. according to the method for the inner smouldering fire point of the process bale of cotton described in claim 1, the method characteristic of fire extinguishing part is, adopts inhibition gas to put out a fire.
5. according to the method for the inner smouldering fire point of the process bale of cotton described in claim 1, the operating characteristics of fire extinguishing part is, adopts gas pressure difference means, inhibition gas is imported to bale of cotton inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410052240.6A CN104841073A (en) | 2014-02-17 | 2014-02-17 | Treatment method for checking and extinguishing cotton bale internal smouldering fire point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410052240.6A CN104841073A (en) | 2014-02-17 | 2014-02-17 | Treatment method for checking and extinguishing cotton bale internal smouldering fire point |
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| CN104841073A true CN104841073A (en) | 2015-08-19 |
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| CN201410052240.6A Pending CN104841073A (en) | 2014-02-17 | 2014-02-17 | Treatment method for checking and extinguishing cotton bale internal smouldering fire point |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101300610A (en) * | 2005-11-04 | 2008-11-05 | 艾摩罗那股份公司 | Apparatus for fire detection in an electrical equipment rack |
| CN201445718U (en) * | 2009-07-24 | 2010-05-05 | 陕西中安消防安全设备有限责任公司 | Low-pressure carbon dioxide air temperature type inerting system |
| CN101801467A (en) * | 2007-08-01 | 2010-08-11 | 艾摩罗那股份公司 | Device and method for fire-prevention and for extinguishing a fire that has broken out in an enclosed area |
| CN202289283U (en) * | 2011-09-20 | 2012-07-04 | 河南省电力勘测设计院 | Automatic fire-proofing and fire-extinguishing plant for coal bunker |
| CN203043373U (en) * | 2012-12-03 | 2013-07-10 | 煤炭科学研究总院 | Inertia gas protecting device |
-
2014
- 2014-02-17 CN CN201410052240.6A patent/CN104841073A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101300610A (en) * | 2005-11-04 | 2008-11-05 | 艾摩罗那股份公司 | Apparatus for fire detection in an electrical equipment rack |
| CN101801467A (en) * | 2007-08-01 | 2010-08-11 | 艾摩罗那股份公司 | Device and method for fire-prevention and for extinguishing a fire that has broken out in an enclosed area |
| CN201445718U (en) * | 2009-07-24 | 2010-05-05 | 陕西中安消防安全设备有限责任公司 | Low-pressure carbon dioxide air temperature type inerting system |
| CN202289283U (en) * | 2011-09-20 | 2012-07-04 | 河南省电力勘测设计院 | Automatic fire-proofing and fire-extinguishing plant for coal bunker |
| CN203043373U (en) * | 2012-12-03 | 2013-07-10 | 煤炭科学研究总院 | Inertia gas protecting device |
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Application publication date: 20150819 |