Equipment with rainwater and sewage diversion, regulation and storage mechanism

Abstract

The invention provides equipment with a rainwater and sewage diversion, regulation and storage mechanism. The equipment comprises a confluence branch pipe, a sewage branch pipe, a cut-off facility, arainwater opening, a first diversion facility, a second diversion facility, an initial rainwater regulation and storage facility and a sewage intercepting pipe; the confluence branch pipe communicateswith the sewage branch pipe and the rainwater opening, and the cut-off facility is arranged between the confluence branch pipe and the sewage branch pipe; the first diversion facility communicates with the confluence branch pipe and a municipal rainwater pipe; the initial rainwater regulation and storage facility communicates with the first diversion facility; the sewage intercepting pipe communicates with the first diversion facility and a municipal sewage pipe; and the second diversion facility communicates with the municipal rainwater pipe. Rainwater and sewage diversion is achieved, the treating pressure of a treating facility in the period of rainfall is reduced, the service life of the treating facility is prolonged, and resource waste is reduced; and the technical defect of riverway drying up caused when only sewage is treated and discharged is avoided in the non-rainfall period, and the technical effect of timely supplying of river water is achieved.

Description

Technical field [0001] The invention belongs to the technical field of municipal drainage, and particularly relates to a device with rain and sewage diversion and regulation and storage mechanisms. Background technique [0002] The municipal drainage system of the city is mainly divided into combined drainage system and split drainage system. The earliest combined drainage system was to mix sewage, industrial wastewater and rainwater in the same pipe and drain it directly into the nearby water body without any treatment, which easily caused serious pollution to the receiving water body. The split drainage system is a device that drains domestic sewage, industrial waste water and rainwater in two or more separate pipes. [0003] At present, in the existing municipal drainage technology, most of the combined communities have the following problems: [0004] (1) When it rains, the rainwater is divided into first rain and mid-late rain according to the time length method, or water qual...

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Problems solved by technology

[0004] (1) In rainy days, the rainwater is divided into early rain and middle and late rain according to the time length method, water quality method, or liquid level method. For the discharge method of early rain, the first rain is generally directly diverted To the municipal sewage pipes, they are reused after being treated by sewage treatment plants. However, the sewage pipes have limited transportation capacity and cannot accommodate a large amount of mixed water of sewage and rainwater. When the mixed water with sewage and initial rain is sent to the sewage treatment plant for treatment due to a large amount, it will also cause insufficient capacity of the sewage treatment plant, or waste of treatment resources; , the discharge of water treatment only involves domestic sewage. In this way, the shortage of water treatment discharge in long-term sunny days can easily lead to the situation that there is no water supplement along the river, and the river will dry up.

[0005] (2) Since the pipeline system inside the confluence community does not separate the discharge of sewage and rainwater, on the one hand, in rainy days, a large amount of sewage is mixed into the rainwater flowing out of the confluence branch pipe. At this time, if this part of sewage is transported to the municipal rainwater pipe, it will easily cause the natural water body connected to the municipal rainwater pipe to be polluted; The concentration of pollutants is still relatively high. Therefore, the middle and late rainwater flowing out of the confluence branch pipe is also sewage. If the middle and late rainwater flows into the municipal rainwater pipe, the natural water body will still be polluted. When the middle and late rainwater is transported to the sewage branch pipe , and due to the large amount of rainwater in the middle and late stages, and the limited capacity of the sewage branch pipes, it cannot accommodate the mid-term rainwater or the late rainwater. A large amount of rainwater is sent to the sewage treatment plant for treatment, which will also cause insufficient capacity of the sewage treatment plant or waste of treatment resources

[0006] It can be seen that in the existing municipal drainage technology, the treatment and discharge of rainwater in the combined system area in rainy days has not realized the diversion of rain and sewage, resulting in a high pressure on the treatment facilities and overloading of the treatment facilities, reducing the The service life of the treatment facilities, and the lack of water treatment discharge in sunny days can easily lead to no water replenishment along the river, and the technical defect of the river drying up

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