Digital definite proportion large flow mixing device and testing system and debugging method thereof

Abstract

The invention discloses a digital definite proportion large flow mixing device comprising a first extinguishing agent primary liquid supplying unit, a second extinguishing agent primary liquid supplying unit, a proportion mixing unit and a definite proportion control unit. The first extinguishing agent primary liquid supplying unit is used for providing first extinguishing agent primary liquid; the second fire extinguishing agent primary liquid supplying unit is used for providing second extinguishing agent primary liquid; the proportion mixing unit is used for producing fire extinguishing agent mixed liquid; and the definite proportion control unit is used for collecting pressure signals of the input end and the output end of the proportion mixing unit, and controlling the mixed liquid flow output by the proportion mixing unit, the injection flow of the first extinguishing agent primary liquid and the injection flow of the second extinguishing agent primary liquid according to the pressure signals. The invention further discloses a testing system and a debugging method of the digital definite proportion large flow mixing device. According to the embodiment of the invention, the proportion of the mixed liquid can be precisely controlled, so that fire extinguishing agents are better compatible in performance and complementary in advantage, thus quick fire extinguishing is achieved, and the fire extinguishing efficiency and reliability are improved.

Description

technical field [0001] The invention relates to the technical field of fire protection, in particular to a digital fixed-ratio large-flow mixing device, a test system and a debugging method thereof. Background technique [0002] The fire extinguishing systems widely used in the field of fire fighting include foam fire extinguishing system and dry powder fire extinguishing system. The foam fire extinguishing system is to mix and pressurize the foam fire extinguishing agent and water through the foam mixing device, and then spray a large amount of foam through the fire extinguishing equipment. conditions to achieve the purpose of fire extinguishing. The dry powder fire extinguishing system is a fire extinguishing system in which the dry powder fire extinguishing agent supply source is connected to a fixed nozzle through a delivery pipeline, and the dry powder is sprayed through the nozzle. The fire extinguishing principle of dry powder fire extinguishing agent is as follows:...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a digital fixed-ratio large-flow mixing device and its test system and debugging method to solve the problem of small working flow range of the mixing device, inaccurate mixing ratio of the mixed liquid, and difficulties in testing and debugging the mixing device system At the same time, the fire extinguishing agents can be better compatible with each other and complement each other in terms of performance, so as to quickly extinguish the fire, improve the fire extinguishing efficiency and fire extinguishing reliability

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