Sewage discharge drop shaft structure based on internal circulation air flow pipe and its application method

Abstract

The invention discloses a sewage discharge drop shaft structure in an internal circulation air pipe, which comprises a vertical shaft and an internal circulation air pipe arranged in the shaft; the internal circulation air pipe divides the vertical shaft into a water-passing part and a water-passing air pipe part , the water passing part is connected with the water inlet pipe, the top of the inner circulation airflow pipe is lower than the bottom of the water inlet pipe, and the bottom of the inner circulation airflow pipe is higher than the top of the outlet pipe, which is used to guide the gas to form an inner airflow pipe in the airflow pipe. Circulating air flow; the internal circulating air flow pipe is vertically suspended in the vertical shaft by a fixing device, and the internal circulating air flow pipe is in contact with the inner wall of the shaft. The invention also discloses a method for using the sewage discharge drop shaft structure based on the internal circulation air flow pipe. The vertical shaft structure of the present invention improves the problem of odor emission and environmental pollution in the sewage system, and can be set according to different water flows to achieve the best gas reduction effect without affecting the requirements for pipeline maintenance and access.

Description

technical field [0001] The invention relates to the field of sewage discharge systems, in particular to a sewage discharge drop shaft structure based on an internal circulation airflow pipe and a method for using the same. Background technique [0002] In addition to the configuration of pumping stations in specific places to raise the water level, water transfer projects are usually between two places with a drop, using the self-weight of the water flow to meet the needs of water transfer. In this water transfer method, it is necessary to use The shaft structure is used to connect the higher upstream pipeline and the lower downstream pipeline in the water delivery system. Among them, the falling flow shaft is the most common shaft structure because of its simple structure and easy design and construction. [0003] However, in the sewage system, with the water flowing down, a large amount of air from the outside will be sucked to the bottom of the falling shaft, and these ga...

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Problems solved by technology

[0007] The object of the present invention is to address the deficiencies of the prior art, and provide a sewage downflow shaft structure based on an internal circulation airflow pipe. The shaft structure can be set according to different water flows while improving the problem of odor dissipation and environmental pollution in the sewage system. In order to achieve the best degassing effect, and take it out when the shaft pipeline structure needs to be repaired, it will not affect the requirements of pipeline maintenance and entry

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