Non-resistance self-draining backflow prevention flood drainage device

Abstract

The invention discloses a non-resistance self-draining backflow prevention flood drainage device. The non-resistance self-draining backflow prevention flood drainage device mainly comprises a drainingwell, a water inlet pipe and a gravity drain pipe, and the water inlet pipe and the gravity drain pipe are arranged on the sidewall of the draining well. The bottom surface of the draining well is lower than the lower ends of the water inlet pipe and the gravity drain pipe. The non-resistance self-draining backflow prevention flood drainage device is further provided with a water collecting tankarranged beside the draining well. An overflow weir is arranged between the draining well and the water collecting tank, and the draining well and the water collecting tank are separated through the overflow weir. Water pumps are arranged in the water collecting tank and used for pumping water in the water collecting tank. A water pump drain pipe is connected to the water outlet ends of the waterpumps. A water outlet of the water pump drain pipe extends to the outside. A flap valve is mounted on the gravity drain pipe through a driving mechanism. The flap valve covers an external water outletof the gravity drain pipe. When the water level in the draining well is higher than the overflow weir, water overflows to the water collecting tank, and the water pumps are started to drain the waterin the water collecting tank outwards. The non-resistance self-draining backflow prevention flood drainage device can greatly improve the drainage capacity of cities and towns to prevent waterlogging.

Description

technical field [0001] The invention relates to a non-resistance self-drainage anti-inversion and drainage device. Background technique [0002] With the development of my country's economy and the continuous advancement of the urbanization process, the scale of the city has expanded rapidly, and the changes in the form of land use have changed the structural characteristics and ecological environment of the city. In the process of urban development, there are phenomena such as lagging drainage and waterlogging prevention facilities, low standards, and encroachment of river and lake water systems, which lead to frequent flood disasters and huge losses of people's lives and property. Therefore, it is necessary to strengthen the construction of sponge cities. In the process of promoting the construction of sponge cities, comprehensively improve the comprehensive ability of urban drainage and waterlogging prevention, and the drainage requirements for cities / towns have been rais...

AI Technical Summary

Problems solved by technology

In the process of urban development, there are phenomena such as lagging drainage and waterlogging prevention facilities, low standards, and encroachment of river and lake water systems, which lead to frequent flood disasters and huge losses of people's lives and property. Therefore, it is necessary to strengthen the construction of sponge cities.

In the process of promoting the construction of sponge cities, comprehensively improve the comprehensive ability of urban drainage and waterlogging prevention, and the drainage requirements for cities / towns have been raised from the original ability to discharge floods once every 1 to 2 years to the requirement of 3 to 5 years of drainage Flooding capacity once in a while, however, the drainage pipe network facilities in existing cities / towns are difficult to meet the above requirements, and solving the urban waterlogging problem is a research topic

Its disadvantage is that the water pump drainage device completely relies on the water pump for drainage, which requires a lot of power consumption

[0005] Due to the high energy consumption characteristics of the water pump drainage device, in the existing towns, the gravity drainage device is basically directly used for drainage. Only in special geographical locations such as low-lying areas, the water pump drainage device is used for strong drainage. , due to the high water level of rivers and lakes, it will seriously affect the work of gravity drainage devices, resulting in waterlogging in cities and towns

[0006] Obviously, the drainage devices at the drainage ports of existing cities / towns use gravity drainage devices on a large scale, and the situation that water pump drainage devices are only used in small parts has been difficult to adapt to the rapid development of cities / towns and the resulting The municipal construction requirements of the high standard of drainage and waterlogging prevention comprehensive ability

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