A fire extinguishing system of metered injection type compressed air foam and its application method
A technology of compressed air foam and fire extinguishing system, applied in fire rescue and other directions, can solve the problems of low foam quality and reliability, and inconvenient operation, and achieve the effect of improving appearance, reducing fire losses, and improving convenience and efficiency.
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[0033] A metered injection compressed air foam fire extinguishing system of the present invention and a method of using the same will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0034] like figure 1 As shown in the figure, a metering injection type compressed air foam fire extinguishing system, the first part is the foam liquid supply part, which mainly consists of a foam raw liquid storage tank 1, a tuning fork sensor 2, a foam pump 3, a single-phase check valve 4, and a foam flow meter 5. , consisting of 6 pneumatic three-way valves. The working state of the foam pump is controlled by the control system, and the speed of the foam pump 3 determines the mixing ratio of the foam mixture. After the ratio of the foam mixture is determined, the speed of the foam pump 3 changes with the flow of water Variety. The function of the tuning fork sensor 2 is mainly to monitor the storage volume of the foam stock solution in the f...
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