Non-premixed pressure vessel with proportionally mixed foam and fire extinguisher and method thereof

Abstract

The invention discloses a non-premixed pressure vessel with proportionally mixed foam as well as a fire extinguisher and a method thereof. The non-premixed pressure vessel with proportionally mixed foam is provided with a water reservoir, a foam liquid reservoir and a foam liquid mixer. The water reservoir and the foam liquid reservoir which are not directly communicated with each other are two independent liquid reservoirs. The foam liquid reservoir is used for storing the foam liquid, the water reservoir is used for storing the fire fighting water, and the foam liquid mixer is used for mixing the foam liquid with the fire fighting water in the process of using the foam fire extinguisher. The mixed pressure vessel is further provided with a suction tube for the fire fighting water and a suction tube for the foam liquid. In the invention, the original foam liquid and water in the foam fire extinguisher are stored separately by optimizing the internal structure of the foam vessel, and the pressure vessel is further provided with a liquid suction tube to mix the foam liquid with the fire fighting water according to a predetermined proportion, thereby the storing time of the foam liquid is prolonged, and the foam liquid and the fire fighting water can be mixed according to a predetermined proportion.

Description

technical field [0001] The present invention relates to a mixing pressure storage tank and its fire extinguisher, which are applied to mobile foam fire extinguishers such as cart type and portable type or fixed foam storage tanks, and a fire extinguisher thereof, in particular to a non-premixed foam proportion mixing pressure storage tank and a fire extinguisher thereof ,method. Background technique [0002] At present, both cart-type and portable foam fire extinguishers are based on the principle of negative pressure foam fire extinguishing, and the internal storage is a mixture of foam stock solution and water, and the storage time of the mixture of foam and water is only 1-2 years. The fire extinguishing performance of the foam liquid requires 1-2 years to replace the foam liquid, which not only wastes a large amount of foam liquid, but also pollutes the environment. Contents of the invention [0003] The technical problem to be solved by the present invention is that ...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is that the current foam fire extinguisher uses a mixture of foam stock solution and water, and the storage time of the mixture of foam and water is only 1-2 years. In order to ensure the fire extinguishing performance of the foam liquid, it takes 1-2 years Replacing the foam liquid not only wastes a lot of foam liquid, but also pollutes the environment. By optimizing the internal structure of the foam storage tank, the foam liquid and water are stored separately, and a liquid suction pipe is added to mix according to the preset ratio. , which not only prolongs the storage time of the foam liquid, but also can be mixed according to the predetermined ratio

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