Fully open spiral flow sewage device

Abstract

The invention relates to a full-open spiral flow pollution discharging device. The aim of separating silt and floating objects from water can be effectively achieved. According to the technical scheme, the full-open spiral flow pollution discharging device comprises a spiral flow silt separating device; the spiral flow silt separating device comprises a separating barrel and a water inlet pipe; the separating barrel is of a hollow structure with openings in the upper end and the lower end, the hollow structure is formed by vertically connecting a cylindrical spiral flow cylindrical bucket and an inverted-cone-shaped spiral flow funnel in a sealed mode; the water inlet pipe is communicated with an inner cavity of the spiral flow cylindrical barrel through a water inlet, an arc flow guide cover plate horizontally extending inwards is arranged on the inner wall of the spiral flow cylindrical bucket, an annular overflow opening for 360-degree overflowing is circumferentially formed in the portion, above the arc flow guide cover plate, of the side wall of the spiral flow cylindrical bucket, a water collecting gallery next to the spiral flow cylindrical bucket is arranged on the outer side of the annular overflow opening, a screen plate is arranged in the portion, below the annular overflow opening, of the water collecting gallery in a covering mode, and a water outlet is formed in the portion, below the screen plate, of the outer wall of the water collecting gallery. By means of the full-open spiral flow pollution discharging device, silt and floating objects are separated from water.

Description

technical field [0001] The invention relates to the technical field of farmland water conservancy irrigation, in particular to a fully open spiral flow sewage discharge device. Background technique [0002] With the rapid development of our country's social economy, my country's farmland water conservancy construction has been paid more and more attention, especially since the promulgation of the Central Document No. 1, my country's farmland water conservancy construction has developed rapidly. The problem of sand and drift discharge in water diversion project is a very important link in engineering design. The existing sand removal technology can be divided into two types according to the sand removal principle. One is to slow down the flow velocity of the water flow and relatively increase the sedimentation time of the sand particles so that the sand particles can be fully settled, such as the traditional sand settling tank. The other is swirling sand removal technology, ...

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Problems solved by technology

[0004] The vegetation in the southern mountainous area is relatively developed. It is inevitable that the water diversion channels in the mountainous area will carry sediment, dead branches and leaves, animal carcasses, and garbage generated by human activities. For production and domestic water, take the design of a high-efficiency water-saving irrigation pipe network (PVC pipe network system pipe diameter between 300mm-30mm) in the central financial farmland water conservancy construction project of Hunan Province as an example. Floating matter and suspended solids of the same water density enter the pipe network and gradually accumulate in the pipe network, eventually leading to the paralysis of the local pipe network or even the entire pipe network. According to engineering practice statistics, the control irrigation area is 500 mu of high-efficiency water-saving area The total investment of the construction project is about 1 million, and the operation period is generally about 3 years or even shorter without the use of drift drainage facilities. The pipeline network has been paralyzed due to blockage

However, the traditional trash rack drainage technology requires regular manual cleaning. In actual life and production, due to inadequate management, the trash rack is blocked and blocked, which cannot meet the water demand of downstream production and life, and even the final waste water is caused by the dirt passing through the grid. blockages also occur from time to time

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