US 11,739,755 B2
Pneumatic type water-free starting self-priming device
Guangjie Peng, Zhenjiang (CN); Jialin Du, Zhenjiang (CN); Hao Chang, Zhenjiang (CN); and Shiming Hong, Zhenjiang (CN)
Assigned to JIANGSU UNIVERSITY, Zhenjiang (CN)
Appl. No. 18/21,187
Filed by JIANGSU UNIVERSITY, Zhenjiang (CN)
PCT Filed Dec. 29, 2021, PCT No. PCT/CN2021/142271
§ 371(c)(1), (2) Date Feb. 14, 2023,
PCT Pub. No. WO2023/115617, PCT Pub. Date Jun. 29, 2023.
Claims priority of application No. 202111588098.3 (CN), filed on Dec. 23, 2021.
Prior Publication US 2023/0243355 A1, Aug. 3, 2023
Int. Cl. F04D 9/02 (2006.01); B01D 19/00 (2006.01)
CPC F04D 9/02 (2013.01) [B01D 19/0042 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A pneumatic type water-free starting self-priming device, having a symmetrical cylinder structure, and comprising a driving device, a gas-liquid separation chamber, and an expandable gas-liquid separation chamber, wherein the gas-liquid separation chamber and the expandable gas-liquid separation chamber are respectively arranged on two sides of the driving device, and gas acceleration channels are symmetrically arranged on the two sides of the driving device; an inner chamber of the gas-liquid separation chamber and an inner chamber of the expandable gas-liquid separation chamber are each connected to an outlet of a corresponding gas acceleration channel through a corresponding gas-liquid flow channel, and a vent valve is arranged at a connection between the outlet of the gas acceleration channel and the gas-liquid flow channel; one-way valves are arranged at an interface between the inner chamber of the gas-liquid separation chamber and the gas-liquid flow channel and at an interface between the inner chamber of the expandable gas-liquid separation chamber and the gas-liquid flow channel, and the one-way valves are arranged symmetrically about a chamber central axis;
drive shafts on the two sides of the driving device are respectively connected to drive shafts of the gas-liquid separation chamber and the expandable gas-liquid separation chamber; the drive shafts on the two sides do not interfere with each other; the driving device uses high-speed gas to drive a drive disk to rotate, to drive the drive shafts to rotate;
a telescopic piston shaft rod in the gas-liquid separation chamber is used to generate a pressure difference between the chamber and outside to suck in water, to realize water suction, gas-liquid separation and water drainage;
the expandable gas-liquid separation chamber uses shrinkage or expansion of volumes of inner and outer chambers thereof to generate a pressure difference to suck in water, to realize water suction, gas-liquid separation and water drainage; and
a fixing support is arranged at a bottom of the driving device, the gas-liquid separation chamber and the expandable gas-liquid separation chamber.