Title:
FAST WATER-FREE STARTING SELF-PRIMING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2023/070642
Kind Code:
A1
Abstract:
Disclosed in the present invention is a fast water-free starting self-priming apparatus, comprising a front-stage suction chamber, a mid-stage gas-liquid separation chamber, and a rear-stage gas-liquid separation chamber. A plurality of two-stage chamber gas-liquid separation one-way flow channels are symmetrically arranged between adjacent chambers, and a plurality of one-way outlets are symmetrically arranged in the inner cavity of the rear-stage gas-liquid separation chamber; the volume of the outer cavity and the inner cavity of the front-stage suction chamber is scaled, and water is suctioned by using a pressure difference, so that water suction and preliminary gas-liquid separation are implemented; the mid-stage gas-liquid separation chamber achieves a gas-liquid separation effect; the volume of the inner cavity of the rear-stage gas-liquid separation chamber is scaled, and the water is quickly discharged by using a pressure difference, so that gas-liquid separation is implemented. The apparatus of the present invention is mounted on an inlet pipe of a centrifugal pump, so that the centrifugal pump is started without water and can directly enter a normal operating condition; and by means of joint operation of the front-stage suction chamber, the mid-stage gas-liquid separation chamber, and the rear-stage gas-liquid separation chamber, gas-liquid separation is fully implemented, such that gas is quickly discharged and a cavity is filled with water, thereby significantly improving the working efficiency and greatly simplifying the operation process.
Inventors:
LI XIAOWEI (CN)
CHANG HAO (CN)
DU JIALIN (CN)
PENG GUANGJIE (CN)
SHI WEIDONG (CN)
HONG SHIMING (CN)
CHANG HAO (CN)
DU JIALIN (CN)
PENG GUANGJIE (CN)
SHI WEIDONG (CN)
HONG SHIMING (CN)
Application Number:
PCT/CN2021/127816
Publication Date:
May 04, 2023
Filing Date:
November 01, 2021
Export Citation:
Assignee:
UNIV JIANGSU (CN)
International Classes:
F04D9/02
Foreign References:
| CN108894992A | 2018-11-27 | |||
| US20060064954A1 | 2006-03-30 | |||
| CN105927558A | 2016-09-07 | |||
| CN113107858A | 2021-07-13 | |||
| CN113464450A | 2021-10-01 | |||
| CN110397599A | 2019-11-01 |
Attorney, Agent or Firm:
NANJING DOYES INTELLECTUAL PROPERTY CO., LTD. (CN)
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