Negative pressure sewage collecting process

Abstract

The invention discloses a negative pressure sewage collecting process. The process comprises the following steps that S1, collecting wells are arranged, specifically, one collecting well is arranged in each rural household, and water inlet pipelines are arranged on the collecting wells correspondingly; S2, a negative pressure collecting tank is arranged, specifically, a collecting tank is arranged, a vacuum pump is arranged in the collecting tank, a plurality of negative pressure pipelines are arranged on the vacuum pump, negative pressure ports are formed in the collecting wells correspondingly, and each negative pressure pipeline extends into the negative pressure port of one corresponding collecting well; and S3, the negative pressure pipelines are paved, specifically, a zigzag laying mode is adopted on a gradient-free road surface, and a bag type vacuum pipeline paving mode is adopted on a continuous uphill road surface. The negative pressure sewage collecting process is good in practicability, the pipeline sealing performance is good, the sewage leakage and rainwater leakage phenomenon can be effectively avoided, the flow speed in the sewage pipelines is relatively large, sewage sedimentation and blocking phenomena can be reduced easily, and operation and management of a sewage collecting pipe network are facilitated.

Description

technical field [0001] The invention relates to the technical field of sewage collection, in particular to a negative pressure sewage collection process. Background technique [0002] In cities and densely populated areas, gravity pipelines are often used to collect sewage. The sewage in buildings flows into outdoor inspection wells. The sewage pipelines are laid according to a certain slope. The sewage is transported along the pipeline to the sewage lifting well by gravity, and then pumped The station is upgraded to the sewage treatment facility. In order to prevent the sewage in the pipeline from clogging, it is often necessary to adopt a certain slope when laying the pipeline. Therefore, the sewage pipeline is generally buried relatively deep, and the project investment is high. However, in rural areas, due to the relatively scattered residence, especially in the case of large changes in rural terrain and many rivers, if relying on the traditional gravity pipeline collect...

AI Technical Summary

Problems solved by technology

[0002] In cities and densely populated areas, gravity pipelines are often used to collect sewage. The sewage in buildings flows into outdoor inspection wells. The sewage pipelines are laid according to a certain slope. The sewage is transported along the pipeline to the sewage lifting well by gravity, and then pumped The station is upgraded to the sewage treatment facility. In order to prevent the sewage in the pipeline from clogging, it is often necessary to adopt a certain slope when laying the pipeline. Therefore, the sewage pipeline is generally buried relatively deep, and the project investment is high.

However, in rural areas, due to the relatively scattered residence, especially in the case of large changes in rural terrain and many rivers, if relying on the traditional gravity pipeline collection method, the pipeline needs to maintain a certain slope, which is difficult to lay and implement. , some of which cannot be implemented at all, resulting in the random discharge of sewage in many villages, especially in rural areas where the amount of sewage is small and the sewage pipelines are long;

[0003] Therefore, the flow rate of the sewage in the pipeline is low during dry flow, the pipeline is easy to be blocked and the leakage is serious, most of the sewage in the dry day seeps directly into the ground, and the sewage cannot be collected. It also seriously threatens the groundwater, seriously affects the surrounding environment, and poses a greater threat to the health of residents.