CN106178380B - Regeneration method of anti-solubility foam extinguishing agent - Google Patents
Regeneration method of anti-solubility foam extinguishing agent Download PDFInfo
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- CN106178380B CN106178380B CN201610563492.4A CN201610563492A CN106178380B CN 106178380 B CN106178380 B CN 106178380B CN 201610563492 A CN201610563492 A CN 201610563492A CN 106178380 B CN106178380 B CN 106178380B
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- extinguishing agent
- fire extinguishing
- surfactant
- foam
- foam fire
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
- A62D1/0071—Foams
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
- A62D1/0071—Foams
- A62D1/0085—Foams containing perfluoroalkyl-terminated surfactant
Abstract
The invention relates to a regeneration method of an anti-solubility foam extinguishing agent, which separates and removes deteriorated biological polysaccharide in the anti-solubility foam extinguishing agent with invalid anti-solubility components, then adds additives, and prepares a regeneration product after uniform mixing; the additive comprises a compound hydrocarbon surfactant, a fluorocarbon surfactant, biological polysaccharide, glycol, urea and water. The regeneration method of the invention can recover the activity of the product of the anti-solubility foam extinguishing agent after the failure, and the anti-solubility foam extinguishing agent is reused, thereby avoiding the waste of resources and being beneficial to the environmental protection.
Description
Technical Field
The invention relates to a regeneration process of an overdue ineffective fire extinguishing agent, belonging to the technical field of fire fighting.
Background
The anti-soluble foam fire extinguishing agent contains biological polysaccharide, and can form a polymer adhesive film on the foam wall, and the polymer adhesive film can effectively prevent water-soluble solvent from absorbing water in the foam, so that the foam is protected, the foam can be permanently covered on the liquid surface of the solvent, when the foam layer on the liquid surface reaches a certain thickness, the foam layer can prevent combustible liquid steam from entering a combustion zone, so that the foam can isolate the combustible liquid (namely the steam thereof) from the combustion zone, and the combustion is stopped. In addition, the water separated out from the anti-dissolving foam can also produce a diluting effect on the surface of the water-soluble solvent, and is also beneficial to fire extinguishing. The fire extinguishing foam generated by the anti-dissolving foam liquid has strong adhesive force, high density, long durability, quick fire extinguishing, good heat insulation and heat radiation prevention effects, effectively controls the reburning of combustible materials, and improves the on-site fire extinguishing efficiency. Is suitable for various low-multiple foam generators. The fire extinguishing agent is suitable for extinguishing and preventing fire of water-soluble combustible and combustible liquids such as alcohol, ester, ether, ketone, organic acid and the like in production and storage, such as: large-scale chemical plants, wineries, chemical warehouses and ship transportation.
The anti-soluble foam fire extinguishing agent should be stored in a cool and dry storehouse to prevent solarization, the storage environment temperature is-5 ℃ to 40 ℃, and the storage period is eight years. Wherein the effective period of the anti-soluble component is two years, after two years, the anti-soluble component is invalid, and the anti-soluble component can only be used as a common foam extinguishing agent and can not meet the standard requirement of qualified products.
Disclosure of Invention
The invention aims to provide a regeneration method of an anti-solubility foam extinguishing agent, which can recover the activity of a product of the anti-solubility foam extinguishing agent after failure for secondary utilization, and the regenerated anti-solubility foam extinguishing agent prepared by the method.
The invention provides a technical scheme for solving the technical problems, which comprises the following steps: a regeneration method of anti-solubility foam extinguishing agent separates and removes metamorphic biological polysaccharide in the ineffective anti-solubility foam extinguishing agent which is stored for more than two years and less than eight years, then adds in additive, mixes evenly, produces regeneration product;
the additive comprises a compound hydrocarbon surfactant, a fluorocarbon surfactant, biological polysaccharide, glycol, urea and water;
the amount of the compound hydrocarbon surfactant accounts for 5-10% of the total mass of the failed anti-solvent foam fire extinguishing agent, the amount of the fluorocarbon surfactant accounts for 1.5-3% of the total mass of the failed anti-solvent foam fire extinguishing agent, the amount of the biological polysaccharide accounts for 0.4-0.8% of the total mass of the failed anti-solvent foam fire extinguishing agent, the amount of the ethylene glycol accounts for 5-10% of the total mass of the failed anti-solvent foam fire extinguishing agent, the amount of the urea accounts for 3-5% of the total mass of the failed anti-solvent foam fire extinguishing agent, and the amount of the water accounts for 20-40% of the total mass of the failed anti-solvent foam fire extinguishing agent;
the compound hydrocarbon surfactant is prepared by compounding an anionic surfactant with a carbon chain length of 8-10 and a nonionic surfactant with a carbon chain length of 8-10.
The compound hydrocarbon surfactant is prepared by mixing sodium n-octyl sulfate and alkyl glycoside surfactant APG 0810.
The mass ratio of the n-octyl sodium sulfate to the alkyl glycoside surfactant APG0810 is 1: 8 to 1: 5.
The mass ratio of the n-octyl sodium sulfate to the alkyl glycoside surfactant APG0810 is 1: 6.
The fluorocarbon surfactant comprises VF-368 fluorocarbon surfactant and VF-6116 fluorocarbon surfactant.
The weight ratio of VF-368 fluorocarbon surfactant to VF-6116 fluorocarbon surfactant is 1: 1.
The biological polysaccharide is one or more of xanthan gum, arabic gum, guar gum, peach gum and pectin.
The model of the failed anti-dissolution foam extinguishing agent is S/AR 3% or S/AR 6%.
The regeneration method of the anti-solubility foam fire extinguishing agent adopts a rectifying tower separation process to separate and remove deteriorated biological polysaccharide in the ineffective anti-solubility foam fire extinguishing agent.
The invention provides another technical scheme for solving the technical problems, which comprises the following steps: a regenerated anti-solubility foam extinguishing agent prepared by the regeneration method.
The invention has the positive effects that: the regeneration method of the anti-solubility foam extinguishing agent of the invention mainly aims at the failure of anti-solubility components, needs to separate and remove deteriorated biological polysaccharide, then a compound hydrocarbon surfactant which is compounded by sodium octyl sulfate and an alkyl glycoside surfactant APG0810 according to a specific proportion is selected, a proper amount of fluorocarbon surfactant is matched, new biological polysaccharide is taken as a foam stabilizer, glycol is taken as an antifreeze agent, urea is taken as a solubilizer, and the mixture ratio of the compound hydrocarbon surfactant, the fluorocarbon surfactant, the foam stabilizer, the antifreeze, the solubilizer and the water is strictly controlled, through the performance advantages of the novel biological polysaccharide and the specific compound hydrocarbon surfactant and the synergistic effect of other components, the reaction and the penetration are carried out on the product which is out of work, so that the product which is out of work can recover the activity of the product, and the standard requirement of GB15308-2006 foam extinguishing agent is met when the foam extinguishing agent is used. The regeneration cost of the product is far lower than that of the similar product, the cost for processing the overdue invalid product is saved, the waste of resources is effectively avoided, and the environmental protection is facilitated. The regenerated product of the invention is mainly used for preventing and putting out fires of hydrocarbon substances and water-soluble liquid, and because the product contains a certain amount of fluorocarbon surfactant, the product has good fluidity, can form a water film and a solid film on the surface of a fuel substance, can effectively resist the damage of water-soluble liquid fuel to foam, and can quickly spread fire-extinguishing foam, thereby achieving the purpose of quickly extinguishing fire.
Detailed Description
Example 1
The regeneration method of the regenerated anti-solubility foam extinguishing agent of the embodiment is to treat the S/AR 6% type anti-solubility foam extinguishing agent which is produced by Jiangsu Suolong fire-fighting science and technology Limited and has expired for one year, and firstly separate and remove the deteriorated biological polysaccharide in the invalid anti-solubility foam extinguishing agent by adopting a rectifying tower separation process. Then under normal temperature and pressure, adding a compound hydrocarbon surfactant accounting for 8 percent of the total mass of the ineffective fire extinguishing agent, 2 percent of fluorocarbon surfactant, 0.5 percent of xanthan gum, 8 percent of glycol, 4 percent of urea and 30 percent of water into the rest ineffective anti-solubility foam fire extinguishing agent, and uniformly mixing to prepare a regenerated product. The compound hydrocarbon surfactant is prepared by mixing n-octyl sodium sulfate and alkyl glycoside surfactant APG0810 according to the compound mass ratio of 1: 6. The fluorocarbon surfactant comprises VF-368 (produced by Shanghai Wilteng chemical technology development Co., Ltd.) fluorocarbon surfactant and VF-6116 (produced by Shanghai Wilteng chemical technology development Co., Ltd.) fluorocarbon surfactant at a mass ratio of 1: 1. If only VF-368 fluorocarbon surfactant is used as the fluorocarbon surfactant, the fire extinguishing effect on fire caused by industrial acetone and similar substances is poorer than that of two fluorocarbon surfactants.
Example 2
The regeneration method of the regenerated anti-solubility foam extinguishing agent of the embodiment is to treat the S/AR 6% type anti-solubility foam extinguishing agent which is produced by Jiangsu Suolong fire-fighting science and technology Limited and has the anti-solubility component overdue for half a year, and firstly separate and remove the deteriorated biological polysaccharide in the invalid anti-solubility foam extinguishing agent by adopting a rectifying tower separation process. Then under normal temperature and pressure, adding a compound hydrocarbon surfactant accounting for 10 percent of the total mass of the ineffective fire extinguishing agent, 1.5 percent of fluorocarbon surfactant, 0.8 percent of guar gum, 10 percent of glycol, 3 percent of urea and 40 percent of water into the rest ineffective anti-solubility foam fire extinguishing agent, and uniformly mixing to prepare a regenerated product. The compound hydrocarbon surfactant is prepared by mixing n-octyl sodium sulfate and alkyl glycoside surfactant APG0810 according to the compound mass ratio of 1: 6. The fluorocarbon surfactant comprises VF-368 (produced by Shanghai Wilteng chemical technology development Co., Ltd.) fluorocarbon surfactant and VF-6116 (produced by Shanghai Wilteng chemical technology development Co., Ltd.) fluorocarbon surfactant at a mass ratio of 1: 1.
Example 3
The regeneration method of the regenerated anti-solubility foam extinguishing agent of the embodiment is to treat the S/AR 3% type anti-solubility foam extinguishing agent which is produced by Jiangsu Suolong fire-fighting science and technology Limited and has expired for one year, and firstly separate and remove the deteriorated biological polysaccharide in the invalid anti-solubility foam extinguishing agent by adopting a rectifying tower separation process. Then under normal temperature and pressure, adding a compound hydrocarbon surfactant accounting for 5 percent of the total mass of the ineffective fire extinguishing agent, 3 percent of fluorocarbon surfactant, 0.6 percent of xanthan gum, 6 percent of glycol, 5 percent of urea and 25 percent of water into the rest ineffective anti-solubility foam fire extinguishing agent, and uniformly mixing to prepare a regenerated product. The compound hydrocarbon surfactant is prepared by mixing n-octyl sodium sulfate and alkyl glycoside surfactant APG0810 according to the compound mass ratio of 1: 6. The fluorocarbon surfactant comprises VF-368 (produced by Shanghai Wilteng chemical technology development Co., Ltd.) fluorocarbon surfactant and VF-6116 (produced by Shanghai Wilteng chemical technology development Co., Ltd.) fluorocarbon surfactant at a mass ratio of 1: 1.
Example 4
The regeneration method of the regenerated anti-solubility foam extinguishing agent of the embodiment is to treat the S/AR 3% type anti-solubility foam extinguishing agent which is produced by Jiangsu Suolong fire-fighting science and technology Limited and has the anti-solubility component overdue for half a year, and firstly separate and remove the deteriorated biological polysaccharide in the invalid anti-solubility foam extinguishing agent by adopting a rectifying tower separation process. Then under normal temperature and pressure, adding a compound hydrocarbon surfactant accounting for 7 percent of the total mass of the ineffective fire extinguishing agent, 2.5 percent of fluorocarbon surfactant, 0.7 percent of xanthan gum, 8 percent of glycol, 4 percent of urea and 20 percent of water into the rest ineffective anti-solubility foam fire extinguishing agent, and uniformly mixing to prepare a regenerated product. The compound hydrocarbon surfactant is prepared by mixing n-octyl sodium sulfate and alkyl glycoside surfactant APG0810 according to the compound mass ratio of 1: 6. The fluorocarbon surfactant comprises VF-368 (produced by Shanghai Wilteng chemical technology development Co., Ltd.) fluorocarbon surfactant and VF-6116 (produced by Shanghai Wilteng chemical technology development Co., Ltd.) fluorocarbon surfactant at a mass ratio of 1: 1.
Comparative example 1
The method of the comparative example is used for treating the S/AR 6% type anti-solubility foam fire extinguishing agent with the anti-solubility components being overdue for one year, which is produced by Jiangsu Suolong fire-fighting science and technology Limited, and the deteriorated biological polysaccharide in the ineffective anti-solubility foam fire extinguishing agent is separated and removed by adopting a rectifying tower separation process. Then adding alkyl glycoside surfactant APG0810 accounting for 8 percent of the total mass of the ineffective fire extinguishing agent, 2 percent of fluorocarbon surfactant, 0.5 percent of xanthan gum, 8 percent of glycol, 4 percent of urea and 30 percent of water into the rest ineffective anti-solubility foam fire extinguishing agent at normal temperature and normal pressure, and uniformly mixing to prepare a regenerated product. The fluorocarbon surfactant comprises VF-368 (produced by Shanghai Wilteng chemical technology development Co., Ltd.) fluorocarbon surfactant and VF-6116 (produced by Shanghai Wilteng chemical technology development Co., Ltd.) fluorocarbon surfactant at a mass ratio of 1: 1.
Comparative example 2
The method of the comparative example is used for treating the S/AR 6% type anti-solubility foam fire extinguishing agent with the anti-solubility components being overdue for one year, which is produced by Jiangsu Suolong fire-fighting science and technology Limited, and the deteriorated biological polysaccharide in the ineffective anti-solubility foam fire extinguishing agent is separated and removed by adopting a rectifying tower separation process. Then under normal temperature and pressure, adding a compound hydrocarbon surfactant accounting for 8 percent of the total mass of the ineffective fire extinguishing agent, 2 percent of fluorocarbon surfactant, 0.5 percent of xanthan gum, 8 percent of glycol, 4 percent of urea and 30 percent of water into the rest ineffective anti-solubility foam fire extinguishing agent, and uniformly mixing to prepare a regenerated product. The compound hydrocarbon surfactant is prepared by mixing n-octyl sodium sulfate and alkyl glycoside surfactant APG0810 according to the compound mass ratio of 1: 4. The fluorocarbon surfactant comprises VF-368 (produced by Shanghai Wilteng chemical technology development Co., Ltd.) fluorocarbon surfactant and VF-6116 (produced by Shanghai Wilteng chemical technology development Co., Ltd.) fluorocarbon surfactant at a mass ratio of 1: 1.
Comparative example 3
The method of the comparative example is used for treating the S/AR 6% type anti-solubility foam fire extinguishing agent with the anti-solubility components being overdue for one year, which is produced by Jiangsu Suolong fire-fighting science and technology Limited, and the deteriorated biological polysaccharide in the ineffective anti-solubility foam fire extinguishing agent is separated and removed by adopting a rectifying tower separation process. Then under normal temperature and pressure, adding a compound hydrocarbon surfactant accounting for 8 percent of the total mass of the ineffective fire extinguishing agent, 2 percent of fluorocarbon surfactant, 0.5 percent of xanthan gum, 8 percent of glycol, 4 percent of urea and 30 percent of water into the rest ineffective anti-solubility foam fire extinguishing agent, and uniformly mixing to prepare a regenerated product. The compound hydrocarbon surfactant is prepared by mixing n-octyl sodium sulfate and alkyl glycoside surfactant APG0810 according to the compound mass ratio of 1: 9. The fluorocarbon surfactant comprises VF-368 (produced by Shanghai Wilteng chemical technology development Co., Ltd.) fluorocarbon surfactant and VF-6116 (produced by Shanghai Wilteng chemical technology development Co., Ltd.) fluorocarbon surfactant at a mass ratio of 1: 1.
A fresh water simulated fire extinguishing test was conducted on a normal S/AR 6% type anti-solvent foam fire extinguishing agent, example 1, and comparative examples 1 to 3, respectively, to obtain the data in Table 1.
TABLE 1 comparative test results for fire extinguishing agents
As can be seen from Table 1, the regenerated product of the invention selects the compound hydrocarbon surfactant which is prepared by compounding the n-octyl sodium sulfate and the alkyl glycoside surfactant APG0810 according to a specific proportion, all indexes of a fire extinguishing test meet the standard requirements of GB15308-2006 foam extinguishing agent, comparative examples 2 and 3 adopt an excessively high or excessively low compound proportion, so that the fire extinguishing time is obviously longer than that of example 1, and the 25% burning resistant time is obviously shorter than that of example 1. While comparative example 1 only used a single hydrocarbon surfactant APG0810, which is the least effective in extinguishing fire. According to the invention, the preferable compound mass ratio of the n-octyl sodium sulfate to the alkyl glycoside surfactant APG0810 is 1: 6, and the fire extinguishing performance is optimal.
The concentrations of the reagents used in the present invention are all chemically pure.
It should be understood that the above examples are only for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And such obvious variations or modifications which fall within the spirit of the invention are intended to be covered by the scope of the present invention.
Claims (7)
1. A regeneration method of anti-solubility foam extinguishing agent is characterized in that: separating and removing deteriorated biological polysaccharide in the ineffective anti-solvent foam fire extinguishing agent which is stored for more than two years and less than eight years, then adding additives, and uniformly mixing to prepare a regenerated product;
the additive comprises a compound hydrocarbon surfactant, a fluorocarbon surfactant, biological polysaccharide, glycol, urea and water; the amount of the compound hydrocarbon surfactant accounts for 5-10% of the total mass of the failed anti-solvent foam fire extinguishing agent, the amount of the fluorocarbon surfactant accounts for 1.5-3% of the total mass of the failed anti-solvent foam fire extinguishing agent, the amount of the biological polysaccharide accounts for 0.4-0.8% of the total mass of the failed anti-solvent foam fire extinguishing agent, the amount of the ethylene glycol accounts for 5-10% of the total mass of the failed anti-solvent foam fire extinguishing agent, the amount of the urea accounts for 3-5% of the total mass of the failed anti-solvent foam fire extinguishing agent, and the amount of the water accounts for 20-40% of the total mass of the failed anti-solvent foam fire extinguishing agent;
the compound hydrocarbon surfactant is formed by mixing n-octyl sodium sulfate and an alkyl glycoside surfactant APG0810, and the compound mass ratio of the n-octyl sodium sulfate to the alkyl glycoside surfactant APG0810 is 1: 8 to 1: 5.
2. The method for regenerating a solventless foam fire extinguishing agent according to claim 1, wherein: the compound mass ratio of the n-octyl sodium sulfate to the alkyl glycoside surfactant APG0810 is 1: 6.
3. The method for regenerating a solventless foam fire extinguishing agent according to claim 2, wherein: the fluorocarbon surfactant comprises VF-368 fluorocarbon surfactant and VF-6116 fluorocarbon surfactant.
4. The method for regenerating a solventless foam fire extinguishing agent according to claim 3, wherein: the mass ratio of VF-368 fluorocarbon surfactant to VF-6116 fluorocarbon surfactant is 1: 1.
5. The method for regenerating a solventless foam fire extinguishing agent according to claim 4, wherein: the biological polysaccharide is one or more of xanthan gum, Arabic gum, guar gum, peach gum and pectin.
6. The method for regenerating a solventless foam extinguishing agent according to any one of claims 1 to 5, wherein: and (3) separating and removing deteriorated biological polysaccharide in the ineffective anti-solubility foam extinguishing agent by adopting a rectifying tower separation process.
7. A regenerated, solvent-resistant foam fire suppressant made by the regeneration process of claim 1.
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| CN111514510A (en) * | 2019-02-01 | 2020-08-11 | 上海汇友消防技术有限公司 | Preparation method of high-concentration foam extinguishing agent |
| CN114917778A (en) * | 2022-05-16 | 2022-08-19 | 西安科技大学 | Foaming device and foaming method for preparing high-stability foam |
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- 2016-07-16 CN CN201610563492.4A patent/CN106178380B/en active Active
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| US4060489A (en) * | 1971-04-06 | 1977-11-29 | Philadelphia Suburban Corporation | Fire fighting with thixotropic foam |
| CN1599633A (en) * | 2001-12-07 | 2005-03-23 | 3M创新有限公司 | Aqueous foaming composition |
| RU2302890C2 (en) * | 2005-07-08 | 2007-07-20 | Алексей Борисович Седов | Fire-extinguishing foam generation composition |
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