A water channel and a flow pattern design method for forming a V-shaped flow pattern in fire rescue

Abstract

The invention discloses a water channel and a flow state design method for forming a V-shaped flow state in fire rescue. The water channel includes a water supply system, an upstream rectangular water channel, a gradient water channel, a downstream inverted trapezoidal water channel, and a reservoir / return water system connected in sequence from top to bottom; the bottom plate of the upstream rectangular water channel is a horizontal plane, and the gradient section The bottom plate of the water channel and the downstream inverted trapezoidal water channel is a slope surface; the side wall of the upstream rectangular water channel is a vertical surface, and the side wall of the downstream inverted trapezoidal water channel is an inclined surface; The vertical surface of the side wall gradually becomes the guide element of the inclined surface of the side wall of the downstream inverted trapezoidal channel. The water channel of the present invention uses the guiding effect of the guiding element to guide the water flow to the center of the water channel to change its direction, thereby forming an oblique V-shaped flow state.

Description

technical field [0001] The invention relates to a water channel and a flow state design method for forming a V-shaped flow state in fire rescue, and belongs to the field of emergency rescue. Background technique [0002] Water rescue is an extremely important content in emergency rescue missions. At present, Chinese rescuers have insufficient theoretical knowledge of water rescue and lack of training venues. Daily training is mainly based on basic physical fitness, firefighting skills and equipment familiarity. Water rescue simulation training is still limited to natural river waters, and simulation training is rare. Due to the complex terrain of the natural river course, the danger is high, and it is easy to cause casualties during the training process; when training in a complex water environment, it is easy to cause the psychological quality and judgment of the trainees to deteriorate, and there are emotions of anxiety, fear and difficulty; The water conditions are uncer...

AI Technical Summary

Problems solved by technology

[0004] In order to form a V-shaped flow state in a torrent waterway and solve the problem of the shape of the flow surface of the waterway, the present invention aims to provide a waterway and a flow state design method for forming a V-shaped flow state in a fire rescue. The function guides the water flow to change direction to the center of the water channel, and then forms an oblique V-shaped flow pattern

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