Automatic hydraulic-control initial rainwater diverting device

Abstract

The invention discloses an automatic hydraulic-control initial rainwater diverting device. The device comprises a well body in which a partition board structure is arranged, and the well body is partitioned into a late rainwater treating chamber in the upper part and an initial rainwater collecting chamber in the lower part by the partition board structure, wherein the late rainwater treating chamber is internally provided with a fixing support and connected with a water inlet pipe and a water outlet pipe, the water inlet end of the water outlet pipe is provided with a filtering structure, a water flowing passage is formed in the partition board structure, the fixing support is connected with an automatic hydraulic-control seal valve structure which is hermetically matched with the water flowing passage, the initial rainwater collecting chamber is connected with an initial rainwater discarding pipe, and the diameter of the water inlet pipe is larger than that of the initial rainwater discarding pipe. The device is capable of diverting initial rainwater before recycling, with automatic hydraulic control during the whole process and without the need of external power; and the device is easy to operate and has the advantages of being energy-saving and durable and being not prone to blockage.

Description

technical field [0001] The invention relates to rainwater recovery and utilization technology, in particular to a hydraulic automatic control initial rain diversion device. Background technique [0002] With the increase of urban air pollution and ground pollution, the pollution of rainwater runoff is becoming more and more serious, especially the initial rainwater with more pollutants (referred to as initial rain). Numerous studies at home and abroad have shown that the initial rainwater quality of runoff is very poor. The highest value of rain pollutant indicators is much higher than that of typical urban domestic sewage. Therefore, the treatment and disposal of early rain is the key technology of rainwater recycling. If the initial rain is intercepted by the network system, it uses the interception pipe network system to intercept the initial rain to the sewage pipe and send it to the sewage treatment plant for purification treatment. The rainwater pollution in the later ...

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Problems solved by technology

[0002] With the increase of urban air pollution and ground pollution, the pollution of rainwater runoff is becoming more and more serious, especially the initial rainwater with more pollutants (referred to as initial rain). Numerous studies at home and abroad have shown that the initial rainwater quality of runoff is very poor. The highest value of rain pollutant indicators is much higher than that of typical urban domestic sewage. Therefore, the treatment and disposal of early rain is the key technology of rainwater recycling. If the initial rain is intercepted by the network system, it uses the interception pipe network system to intercept the initial rain to the sewage pipe and send it to the sewage treatment plant for purification treatment. The rainwater pollution in the later period of the rainfall is relatively light. After pretreatment, it is directly discharged into the natural environment. However, the current initial rainwater interception facilities have the following disadvantages: 1) The structure of the interception pipe network system is complex, and operation and maintenance are difficult; 2) The equipment is easy to be blocked during the pretreatment of the later rainwater before discharge; 3) Usually, it needs to pass Electric valves and weir gates are used to intercept the flow, which consumes a lot of energy and has a short service life

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