Title:
SYSTEM FOR ACCELERATING SALT WASHING AND DRAINAGE OF SOIL BASED ON NEGATIVE PRESSURE
Document Type and Number:
WIPO Patent Application WO/2023/045246
Kind Code:
A1
Abstract:
A system for accelerating salt washing and drainage of soil based on negative pressure, comprising concealed tubes (2), wherein the concealed tubes (2) are communicated with negative pressure chambers (5); the negative pressure chambers (5) are communicated with an air extraction pump (3) by means of an air extraction port (58); and pressure pumping can be performed on the negative pressure chambers (5) by means of the air extraction pump (3). By arranging the concealed tubes, improving the structure of the concealed tubes, and arranging the negative pressure chambers between the air extraction pump and the concealed tubes, negative pressure pumping is performed on the negative pressure chambers so as to directly act on the atmosphere in the negative pressure chambers, and water in the solid is discharged by means of the atmospheric pressure, thereby improving the drainage efficiency and accelerating soil drainage.
Inventors:
ZHANG CHUAN (CN)
ZHOU JUNAN (CN)
YAN HAOFANG (CN)
ZHANG WENCHENG (CN)
NI YUXIN (CN)
ZHOU JUNAN (CN)
YAN HAOFANG (CN)
ZHANG WENCHENG (CN)
NI YUXIN (CN)
Application Number:
PCT/CN2022/077955
Publication Date:
March 30, 2023
Filing Date:
February 25, 2022
Export Citation:
Assignee:
UNIV JIANGSU (CN)
International Classes:
A01B77/00
Foreign References:
| CN113950884A | 2022-01-21 | |||
| CN112889383A | 2021-06-04 | |||
| CN206409273U | 2017-08-15 | |||
| CN205755372U | 2016-12-07 | |||
| CN105359659A | 2016-03-02 | |||
| US20190090409A1 | 2019-03-28 |
Attorney, Agent or Firm:
NANJING DOYES INTELLECTUAL PROPERTY CO., LTD. (CN)
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