CN103301589A - Recovery method of alkyl-halide fire extinguishing agent in fire extinguishing bottle for aviation - Google Patents
Recovery method of alkyl-halide fire extinguishing agent in fire extinguishing bottle for aviation Download PDFInfo
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- CN103301589A CN103301589A CN2013102548393A CN201310254839A CN103301589A CN 103301589 A CN103301589 A CN 103301589A CN 2013102548393 A CN2013102548393 A CN 2013102548393A CN 201310254839 A CN201310254839 A CN 201310254839A CN 103301589 A CN103301589 A CN 103301589A
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Abstract
The invention discloses a recovery method of an alkyl-halide fire extinguishing agent in a fire extinguishing bottle for aviation, which belongs to the technical range of recovery of fire extinguishing agents. The recovery method comprises the following steps of: firstly, establishing a fire extinguishing agent recovery system which enables a fire extinguishing agent to be liquefied by reducing the temperature and increasing the pressure simultaneously; setting the temperature of a refrigeration house to be -40 DEG C and the volume of a pressure storage tank to be 35L according to practical needs; placing the pressure storage tank in the small refrigeration house or refrigerator, placing the fire extinguishing bottle outside the small refrigeration house or refrigerator; connecting the pressure storage tank to the fire extinguishing bottle and the fire extinguishing agent storage tank respectively; opening an inlet shutoff valve to release the fire extinguishing agent in the fire extinguishing bottle to the pressure storage tank, wherein the pressure storage tank is higher than the fire extinguishing agent storage tank, and the liquid fire extinguishing agent in the pressure storage tank flows towards the fire extinguishing agent storage tank under the action of gravity; and automatically recovering according to specific pressure. The recovery method diclosed by the invention has the advantages that the fire extinguishing agent discharged into the atmosphere is obviously reduced, so that the environment is protected, and the purposes of reducing the waste of the fire extinguishing agent and improving the recovery efficiency of the fire extinguishing agent are fulfilled.
Description
Technical field
The invention belongs to the recovery technology field of extinguishing chemical, particularly a kind of aviation relates to the recycling of Halon1301 and 1211 extinguishing chemicals specifically with halon extinguishing agent recovery method in the fire-suppression bottle.
Background technology
BTM) and Halon1211 (molecular formula: CBrClF2, chemical name: difluorochlobromo-methane), be commonly called as and breathe out dragon aviation mainly is Halon1301 (molecular formula: CBrF3, chemical name: with the extinguishing chemical that charges in the fire-suppression bottle.This type of material has advantages such as fire-fighting efficiency height, fire extinguishing back noresidue, good insulating, but belongs to greenhouse gases and depletion of the ozone layer material because of it, and according to the relevant world, domestic and industry laws, such material is under an embargo and discharges in atmosphere.China in 1991 promises to undertake in such material of complete prohibition production in 2010 after adding Montreal protocol.For above-mentioned reasons, when safeguarding the fire-suppression bottle that uses such extinguishing chemical, must carry out recycling by extinguishing chemical wherein.The main method that reclaims extinguishing chemical at present is that fire-suppression bottle directly is connected with storing tank hose with recovery, and the pressure reduction that utilizes the interior pressure of fire-suppression bottle to be higher than pressure in the holding vessel then is pressed into holding vessel with extinguishing chemical.There is following shortcoming in this method: (1) fire-suppression bottle uses nitrogen supercharging, therefore will also enter into holding vessel inevitably when reclaiming, thereby causes whole volumes of holding vessel all to be used for storing extinguishing chemical.(2) entering owing to nitrogen, cause the pressure of holding vessel constantly to raise, final more than or equal to the pressure in the fire-suppression bottle to be recycled, make the interior remaining part gaseous fire extinguishing agent of fire-suppression bottle pressured difference to enter holding vessel, remove the pressure in the non-release holding vessel this moment, otherwise can't continue to reclaim.(3) boiling point of extinguishing chemical reduces with the reduction of environmental stress, its boiling point of depressing at a normal atmosphere is-58 ℃, so pressure is reduced to a certain degree, and the rear section extinguishing chemical will become gaseous state, and reclaim in order to continue, pressure in the holding vessel will have to discharge in atmosphere, this certainly will cause the part extinguishing chemical also to be released in the atmosphere, thereby pollutes and waste.
Summary of the invention
The objective of the invention is to propose a kind of aviation halon extinguishing agent recovery method in the fire-suppression bottle, it is characterized in that the halon extinguishing agent recycling step is as follows:
1) at first set up the extinguishing chemical recovery system, place accumulator in miniature cold storage or household freezer, fire-suppression bottle is placed on the outside of miniature cold storage or household freezer; Accumulator is provided with import, outlet and explosion relief; The accumulator import is connected fire-suppression bottle to be recycled by cooling line with the import shut-off valve, the installation site of fire-suppression bottle is higher than accumulator, the accumulator outlet is connected with the extinguishing chemical holding vessel with check valve by outlet shut-off valve, filter successively, and the position of accumulator is higher than the extinguishing chemical holding vessel; The accumulator explosion relief is equipped with a pressure relieving valve, opens release pressure automatically when pressure is higher than appointment pressure in accumulator, is lower than when specifying pressure and closes automatically; Fire-suppression bottle is placed on miniature cold storage or household freezer outside, is conducive to the fire-suppression bottle internal pressure and increases.
2) temperature of ice house is set and is-40 ℃;
3) choosing the accumulator volume is 35L;
4) opening the import shut-off valve makes the interior extinguishing chemical of fire-suppression bottle discharge to accumulator, inlet ductwork is coiled into helical form, extinguishing chemical is sufficiently cooled in inlet ductwork in dispose procedure, after the pressure equilibrium in fire-suppression bottle and the accumulator, remaining a part of gas in the fire-suppression bottle, there are extinguishing chemical and most of gas in the accumulator, pressure in fire-suppression bottle and the accumulator is at 290-740kPa at this moment, because the extinguishing chemical temperature is reduced to-40 ℃, the saturated vapor pressure of extinguishing chemical has only 224kPa under this temperature, so extinguishing chemical condenses into liquid state, thereby and nitrogen separation, this moment is if the pressure in the accumulator is higher than 224kPa, then pressure relieving valve is opened, and discharges unnecessary nitrogen, reduces pressure in the accumulator, when pressure was equal to or slightly lower than 224kPa in the accumulator, pressure relieving valve was closed automatically; Open the outlet shut-off valve this moment, because the position of accumulator is higher than the extinguishing chemical holding vessel, the liquid-state extinguishing agent in the accumulator flows to the extinguishing chemical holding vessel under the gravity effect; During pressure, check valve automatically shuts down in pressure in the accumulator is equal to or less than the extinguishing chemical holding vessel, stops the extinguishing chemical in the holding vessel to flow backwards to accumulator.
Described filter is used for filtering the impurity of extinguishing chemical, but periodic cleaning or replacing.
The invention has the beneficial effects as follows by reducing the extinguishing chemical recovery system that temperature and rising pressure make extinguishing chemical liquefaction simultaneously; reclaim more extinguishing chemical, therefore significantly reduced the extinguishing chemical to airborne release, protected environment; reduce the waste of extinguishing chemical, improve the extinguishing chemical organic efficiency.
Description of drawings
Fig. 1 forms schematic diagram for the extinguishing chemical recovery system.
The specific embodiment
The present invention proposes a kind of aviation with halon extinguishing agent recovery method in the fire-suppression bottle, is illustrated below in conjunction with accompanying drawing.
At first set up one and reduce the extinguishing chemical recovery system that temperature and rising pressure make extinguishing chemical liquefaction simultaneously; It is 35L for-40 ℃ with choosing the accumulator volume that temperature of ice house is set according to actual needs;
Figure 1 shows that extinguishing chemical recovery system composition schematic diagram.Among the figure, placing volume in miniature cold storage or household freezer 10 is the accumulator 4 of 35L, and the temperature that freezer arranges is-40 ℃.Accumulator is provided with import, outlet and explosion relief; The accumulator import is connected fire-suppression bottle to be recycled 1 by cooling line 3 with import shut-off valve 2, and the installation site of fire-suppression bottle 1 is higher than accumulator 4, and inlet ductwork 3 is coiled into helical form, in order to make the extinguishing chemical in the pipeline sufficiently cooled; The accumulator outlet is connected with extinguishing chemical holding vessel 9 with check valve 8 by outlet shut-off valve 6, filter 7 successively.Fire-suppression bottle 1 is placed on miniature cold storage or household freezer outside, is conducive to the fire-suppression bottle internal pressure and increases.Its middle filtrator 7 is used for filtering the impurity of extinguishing chemical, but periodic cleaning or replacing.
The halon extinguishing agent removal process makes the interior extinguishing chemical of fire-suppression bottle discharge to accumulator for opening the import shut-off valve, inlet ductwork is coiled into helical form, extinguishing chemical is sufficiently cooled in inlet ductwork in dispose procedure, after the pressure equilibrium in fire-suppression bottle and the accumulator, remaining a part of gas in the fire-suppression bottle, there are extinguishing chemical and most of gas in the accumulator, pressure in fire-suppression bottle and the accumulator is at 290-740kPa at this moment, because the extinguishing chemical temperature is reduced to-40 ℃, the saturated vapor pressure of extinguishing chemical has only 224kPa under this temperature, so extinguishing chemical condenses into liquid state, thereby and nitrogen separation, this moment is if the pressure in the accumulator is higher than 224kPa, then pressure relieving valve is opened, and discharges unnecessary nitrogen, reduces pressure in the accumulator, when pressure was equal to or slightly lower than 224kPa in the accumulator, pressure relieving valve was closed automatically; Open the outlet shut-off valve this moment, because the position of accumulator is higher than the extinguishing chemical holding vessel, the liquid-state extinguishing agent in the accumulator flows to the extinguishing chemical holding vessel under the gravity effect; During pressure, check valve automatically shuts down in pressure in the accumulator is equal to or less than the extinguishing chemical holding vessel, stops the extinguishing chemical in the holding vessel to flow backwards to accumulator.
Claims (2)
1. an aviation is characterized in that the halon extinguishing agent recycling step is as follows with halon extinguishing agent recovery method in the fire-suppression bottle:
1) at first set up the extinguishing chemical recovery system, place accumulator in miniature cold storage or household freezer, fire-suppression bottle is placed on the outside of miniature cold storage or household freezer; Accumulator is provided with import, outlet and explosion relief; The accumulator import is connected fire-suppression bottle to be recycled by cooling line with the import shut-off valve, the installation site of fire-suppression bottle is higher than accumulator, the accumulator outlet is connected with the extinguishing chemical holding vessel with check valve by outlet shut-off valve, filter successively, and the position of accumulator is higher than the extinguishing chemical holding vessel; The accumulator explosion relief is equipped with a pressure relieving valve, opens release pressure automatically when pressure is higher than appointment pressure in accumulator, is lower than when specifying pressure and closes automatically; Fire-suppression bottle is placed on miniature cold storage or household freezer outside, is conducive to the fire-suppression bottle internal pressure and increases.
2) temperature of ice house is set and is-40 ℃;
3) choosing the accumulator volume is 35L;
4) opening the import shut-off valve makes the interior extinguishing chemical of fire-suppression bottle discharge to accumulator, inlet ductwork is coiled into helical form, extinguishing chemical is sufficiently cooled in inlet ductwork in dispose procedure, after the pressure equilibrium in fire-suppression bottle and the accumulator, remaining a part of gas in the fire-suppression bottle, there are extinguishing chemical and most of gas in the accumulator, pressure in fire-suppression bottle and the accumulator is at 290-740kPa at this moment, because the extinguishing chemical temperature is reduced to-40 ℃, the saturated vapor pressure of extinguishing chemical has only 224kPa under this temperature, so extinguishing chemical condenses into liquid state, thereby and nitrogen separation, this moment is if the pressure in the accumulator is higher than 224kPa, then pressure relieving valve is opened, and discharges unnecessary nitrogen, reduces pressure in the accumulator, when pressure was equal to or slightly lower than 224kPa in the accumulator, pressure relieving valve was closed automatically; Open the outlet shut-off valve this moment, because the position of accumulator is higher than the extinguishing chemical holding vessel, the liquid-state extinguishing agent in the accumulator flows to the extinguishing chemical holding vessel under the gravity effect; During pressure, check valve automatically shuts down in pressure in the accumulator is equal to or less than the extinguishing chemical holding vessel, stops the extinguishing chemical in the holding vessel to flow backwards to accumulator.
2. according to the described a kind of aviation of claim 1 halon extinguishing agent recovery method in the fire-suppression bottle, it is characterized in that described filter is used for filtering the impurity of extinguishing chemical, but periodic cleaning or replacing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102548393A CN103301589A (en) | 2013-06-25 | 2013-06-25 | Recovery method of alkyl-halide fire extinguishing agent in fire extinguishing bottle for aviation |
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| CN2013102548393A CN103301589A (en) | 2013-06-25 | 2013-06-25 | Recovery method of alkyl-halide fire extinguishing agent in fire extinguishing bottle for aviation |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527817A (en) * | 2013-10-30 | 2014-01-22 | 上海金盾消防安全科技有限公司 | Container valve of fire extinguishing agent storage bottle |
| CN103527817B (en) * | 2013-10-30 | 2016-11-30 | 上海金盾消防安全科技有限公司 | The container value of extinguishing chemical storage bottle |
| CN109395303A (en) * | 2018-09-05 | 2019-03-01 | 中国航空工业集团公司西安飞机设计研究所 | Extinguishing chemical recyclable device |
| CN112479805A (en) * | 2020-11-17 | 2021-03-12 | 北京北机机电工业有限责任公司 | Trifluoromonobromomethane residual gas recovery device |
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| GB591358A (en) * | 1944-09-28 | 1947-08-15 | Standard Oil Dev Co | Process for the separation and purification of alkyl halides |
| CN88101700A (en) * | 1987-03-04 | 1988-10-05 | 联合碳化加拿大公司 | From gas stream, reclaim the method for halohydrocarbon |
| GB2231136A (en) * | 1989-03-17 | 1990-11-07 | Keltona Ltd | Gas separation |
| US5150577A (en) * | 1991-06-11 | 1992-09-29 | Mitchell Mark D | System and method for recovering and purifying a halocarbon composition |
| JPH05309147A (en) * | 1992-04-30 | 1993-11-22 | Yamato Protec Co | Separation and recovery method for halide fire extinguishing chemical agent |
| US5263326A (en) * | 1991-03-21 | 1993-11-23 | Team Aer Lingus | Halogenated hydrocarbon recycling machine |
| JPH07151456A (en) * | 1993-11-30 | 1995-06-16 | Iwatani Internatl Corp | Method and apparatus for recovering fluorine-based gas |
| JPH08311438A (en) * | 1995-05-18 | 1996-11-26 | Osaka Gas Co Ltd | Refrigerant for production of liquefied carbon dioxide and method for operating liquefied carbon dioxide production equipment |
| US5582014A (en) * | 1993-12-15 | 1996-12-10 | American Airlines, Inc. | Halon recovery system |
| CN202131245U (en) * | 2011-05-24 | 2012-02-01 | 江苏托球农化有限公司 | Equipment for recycling bromotrifluoromethane |
| KR101204006B1 (en) * | 2012-05-31 | 2012-11-23 | 주식회사 동양엔지니어링 | System for extinguishing agent recovery and method therefor |
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2013
- 2013-06-25 CN CN2013102548393A patent/CN103301589A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB591358A (en) * | 1944-09-28 | 1947-08-15 | Standard Oil Dev Co | Process for the separation and purification of alkyl halides |
| CN88101700A (en) * | 1987-03-04 | 1988-10-05 | 联合碳化加拿大公司 | From gas stream, reclaim the method for halohydrocarbon |
| GB2231136A (en) * | 1989-03-17 | 1990-11-07 | Keltona Ltd | Gas separation |
| US5263326A (en) * | 1991-03-21 | 1993-11-23 | Team Aer Lingus | Halogenated hydrocarbon recycling machine |
| US5150577A (en) * | 1991-06-11 | 1992-09-29 | Mitchell Mark D | System and method for recovering and purifying a halocarbon composition |
| JPH05309147A (en) * | 1992-04-30 | 1993-11-22 | Yamato Protec Co | Separation and recovery method for halide fire extinguishing chemical agent |
| JPH07151456A (en) * | 1993-11-30 | 1995-06-16 | Iwatani Internatl Corp | Method and apparatus for recovering fluorine-based gas |
| US5582014A (en) * | 1993-12-15 | 1996-12-10 | American Airlines, Inc. | Halon recovery system |
| JPH08311438A (en) * | 1995-05-18 | 1996-11-26 | Osaka Gas Co Ltd | Refrigerant for production of liquefied carbon dioxide and method for operating liquefied carbon dioxide production equipment |
| CN202131245U (en) * | 2011-05-24 | 2012-02-01 | 江苏托球农化有限公司 | Equipment for recycling bromotrifluoromethane |
| KR101204006B1 (en) * | 2012-05-31 | 2012-11-23 | 주식회사 동양엔지니어링 | System for extinguishing agent recovery and method therefor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527817A (en) * | 2013-10-30 | 2014-01-22 | 上海金盾消防安全科技有限公司 | Container valve of fire extinguishing agent storage bottle |
| CN103527817B (en) * | 2013-10-30 | 2016-11-30 | 上海金盾消防安全科技有限公司 | The container value of extinguishing chemical storage bottle |
| CN109395303A (en) * | 2018-09-05 | 2019-03-01 | 中国航空工业集团公司西安飞机设计研究所 | Extinguishing chemical recyclable device |
| CN112479805A (en) * | 2020-11-17 | 2021-03-12 | 北京北机机电工业有限责任公司 | Trifluoromonobromomethane residual gas recovery device |
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Application publication date: 20130918 |
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