Title:
NEGATIVE-PRESSURE SEWAGE RELAY STATION, AND NEGATIVE-PRESSURE SEWAGE COLLECTION SYSTEM AND CONTROL METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/226901
Kind Code:
A1
Abstract:
The present invention relates to the technical field of sewage treatment. Disclosed are a negative-pressure sewage relay station, and a negative-pressure sewage collection system and a control method thereof. The sewage relay station mainly comprises a well body, wherein an upper portion and a lower portion of the well body are partitioned into a normal-pressure space and a negative-pressure space; the negative-pressure space is in communication with a water intake pipe, a water discharge pipe, a pressure relief pipe and a negative-pressure gas pipe; the water intake pipe is in communication with sewage collection wells; and the water discharge pipe and the negative-pressure gas pipe are respectively in communication with a negative-pressure sewage collection tank and a vacuum pump in a negative-pressure station. The relay station is used as a relay node to suck sewage from a plurality of sewage collection wells, such that the operation area of a single negative-pressure station can be effectively extended, thereby reducing the construction cost of a system. In addition, by means of coordinated control over negative-pressure relay stations, the working efficiency and reliability of a negative-pressure sewage collection system are improved while the operation cost of the whole system is reduced.
Inventors:
CHEN YUNYI (CN)
CHEN LIGUO (CN)
ZHANG WEI (CN)
CHEN LIGUO (CN)
ZHANG WEI (CN)
Application Number:
PCT/CN2023/095360
Publication Date:
November 30, 2023
Filing Date:
May 19, 2023
Export Citation:
Assignee:
SHANGHAI ZTEC ENV S & T CO LTD (CN)
JIANGSU FORYOU ENVIRONMENTAL TECH CO LTD (CN)
JIANGSU FORYOU ENVIRONMENTAL TECH CO LTD (CN)
International Classes:
E03F5/22
Foreign References:
| CN114922269A | 2022-08-19 | |||
| CN208023678U | 2018-10-30 | |||
| CN201801947U | 2011-04-20 | |||
| CN105155651A | 2015-12-16 | |||
| CN209162988U | 2019-07-26 | |||
| CN214738556U | 2021-11-16 | |||
| US4155851A | 1979-05-22 | |||
| JP2002194807A | 2002-07-10 | |||
| JPH08296600A | 1996-11-12 |
Attorney, Agent or Firm:
BEIJING WEIZHENG PATENT AGENCY CO., LTD. (CN)
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