Preparation method and application of aqueous film-forming foam fire extinguishing agent
A foam fire extinguishing agent and aqueous film-forming technology, applied in fire prevention equipment, etc., can solve the problems of restricting the use range of aqueous film-forming foam fire extinguishing agent, not being suitable for use in cold northern regions, and low fire extinguishing efficiency, so as to be suitable for large-scale industrial production , Long anti-burning time, high safety effect
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Embodiment 1
[0026] (1) Preparation of aqueous film-forming foam fire extinguishing agent:
[0027] Ionized water (755kg), imidazoline (50kg), fluorocarbon surfactant 1470 (30kg), alkyl glycoside APG0810 (150kg), fluorocarbon surfactant 1460 (15kg) were added to the stirring tank, and the reaction was stirred at room temperature After 1.5h, a reaction solution was obtained.
[0028] (2) Intermediate control:
[0029] The reaction solution obtained in step (1) is adjusted to pH 8.0 by adding caustic soda or potassium dihydrogen phosphate to obtain a mixed solution; wherein, if the pH value of the reaction solution obtained in step (1) is greater than 8.0, then add dihydrogen phosphate Potassium adjusts the pH value of the reaction solution obtained in step (1) to 8.0; if the pH value of the reaction solution obtained in step (1) is less than 8.0, then add caustic soda to adjust the pH value of the reaction solution obtained in step (1) to 8.0;
[0030] (3) Defoaming:
[0031] The mixed s...
Embodiment 2
[0043] (1) Preparation of aqueous film-forming foam fire extinguishing agent:
[0044] Add ionized water (665kg), imidazoline (80kg), fluorocarbon surfactant 1470 (35kg), alkyl glycoside APG0810 (200kg), fluorocarbon surfactant 1460 (20kg) into the stirring tank, and stir the reaction at room temperature 2h, the reaction solution was obtained.
[0045] (2) Intermediate control:
[0046] The reaction solution obtained in step (1) is adjusted to pH 8.5 by adding caustic soda or potassium dihydrogen phosphate to obtain a mixed solution; wherein, if the pH value of the reaction solution obtained in step (1) is greater than 8.5, dihydrogen phosphate is added Potassium adjusts the pH value of the reaction solution obtained in step (1) to 8.5; if the pH value of the reaction solution obtained in step (1) is less than 8.5, then add caustic soda to adjust the pH value of the reaction solution obtained in step (1) to 8.5;
[0047] (3) Defoaming:
[0048] The mixed solution obtained i...
Embodiment 3
[0059] (1) Prepare aqueous film-forming foam fire extinguishing agent:
[0060] Add ionized water (840kg), imidazoline (30kg), fluorocarbon surfactant 1470 (20kg), alkyl glycoside APG0810 (100kg), fluorocarbon surfactant 1460 (10kg) into the stirring tank, and stir the reaction at room temperature 1h, the reaction solution was obtained.
[0061] (2) Intermediate control:
[0062] The reaction solution obtained in step (1) is adjusted to a pH value of 7.0 by adding caustic soda or potassium dihydrogen phosphate to obtain a mixed solution; wherein, if the pH value of the reaction solution obtained in step (1) is greater than 7.0, adding dihydrogen phosphate Potassium adjusts the pH value of the reaction solution obtained in step (1) to 7.0; if the pH value of the reaction solution obtained in step (1) is less than 7.0, then adding caustic soda adjusts the pH value of the reaction solution obtained in step (1) to 7.0;
[0063] (3) Defoaming:
[0064] The mixed solution obtaine...
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