Municipal flood pressure relief blow-down valve

Abstract

The municipal flood pressure relief blow-down valve comprises a valve body inner cavity, the middle of the top of the valve body inner cavity is provided with a liquid inlet in a penetrating mode, the bottoms of the left side wall and the right side wall of the valve body inner cavity are each provided with a main liquid outlet, and the main liquid outlets are connected with a municipal drainage channel; the movable cavities are fixed to the left side and the right side of the top of an inner cavity of the valve body, lifting rods are movably installed in the movable cavities, elastic pieces are fixed between the tops of the lifting rods and the tops of the movable cavities, and floating plates are fixed to the lower ends of the lifting rods; the partition plate is located in the middle in the inner cavity of the valve body, and a connecting ring is fixed to the edge of the bottom of the partition plate; the middle net barrel and the flood discharge opening are both fixed to the center of the bottom of the inner cavity of the valve body. According to the municipal flood pressure relief blow-down valve, the valve can be started to be communicated with an emergency flood discharge pipeline through the buoyancy effect of water when accumulated water is fully filled in the valve body by utilizing the backward flowing and overflow phenomena during flood disasters, and water is rapidly drained to relieve pressure.

Description

technical field [0001] The invention relates to the technical field of municipal engineering, in particular to a municipal flood pressure relief and sewage valve. Background technique [0002] Municipal engineering is the cornerstone of modern urban development, including municipal above-ground roads, bridges, and underground sewage and sewer pipeline networks. In order to ensure the emergency response of municipal drainage pipelines in flood disasters, emergency flood discharge will be added to existing municipal pipelines. The pipeline is connected through an auxiliary pressure relief valve. Under normal conditions, the valve conducts normal drainage. When a flood occurs, the valve will connect to the emergency flood discharge pipeline to achieve rapid release of flood water flow. [0003] However, the existing municipal flood pressure relief and sewage valves have the following problems in use: [0004] Insufficient operating sensitivity, additional auxiliary electrical ...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a municipal flood pressure relief and sewage valve to solve the above-mentioned background technology. The existing municipal flood pressure relief and sewage valve needs to be installed with additional auxiliary electrical components for control. In flood weather, the electrical components are affected. Floods and floods have a great impact and are prone to use failures. When flood water exceeds the drainage capacity of conventional drainage pipes, rapid flood pressure relief can be performed to speed up the efficiency of flood relief and pressure relief. Dirt is discharged into the emergency flood discharge pipeline synchronously, which affects the subsequent cleaning and maintenance of the pipeline

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