Flow pipeline for fire engine

Abstract

The invention discloses a flow pipeline for a fire engine, and relates to the technical field of the fire engine. The structure of the flow pipeline comprises a suction pipe, a throat pipe and a diffusion pipe which are sequentially connected in a liquid flowing direction, wherein a water outlet of the diffusion pipe is connected with a second water inlet of the suction pipe through a reflowing pipe, besides, a flow meter is arranged at the end part, near the suction pipe, of the throat pipe, partial foam mixed liquor flowing out of the water outlet of the diffusion pipe reflows into the suction pipe through the reflowing pipe, in this way, under the condition that the pressure of a water pump does not need to be increased, the flow value of the foam mixed liquor flowing into the suction pipe can be increased, and further the flow value of the whole flow pipeline is increased; besides, according to real-time monitoring of the flow meter on the flow value, the flow value of foam entering into the throat pipe can be adjusted in a real-time manner, further the mixing ratio of water to the foam is adjusted and controlled, the foaming effect is good, and the situation that the foam generated during a fire is extinguished has continuity and stability is guaranteed.

Description

technical field [0001] The invention relates to the technical field of fire trucks, in particular to a flow pipeline for fire trucks. Background technique [0002] The flow pipeline of the fire truck is generally used to connect the fire pump and the fire extinguishing spray device. The fire pump delivers the pressurized water to the fire extinguishing spray device through the flow pipeline. Extinguish fire at source. [0003] For different types of fire sources, the fire extinguishing agent of the fire truck includes not only water, but also a foam mixture of water and foam. In order to achieve the best fire extinguishing effect, it even includes compressed air, water and foam mixed in a certain proportion. into the air-foam mixture. Because the existing flow pipeline cannot control the flow ratio of water and foam in the foam mixture or the air-foam mixture flowing through it in real time, the foaming effect of the foam mixture is not good, and foam often occurs during f...

AI Technical Summary

Problems solved by technology

Because the existing flow pipeline cannot control the flow ratio of water and foam in the foam mixture or the air-foam mixture flowing through it in real time, the foaming effect of the foam mixture is not good, and foam often occurs during fire extinguishing Intermittent and discontinuous phenomena affect the fire extinguishing effect. In addition, the liquid or foam mixed liquid in the existing flow pipeline can only increase its flow value by increasing the pressure of the pump, which will significantly increase the energy consumption of the pump. thereby increasing production costs

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