Pneumatic type water-free starting self-priming device

Patent metadata

Field	Value
Publication number	US-11739755-B2
Application number	US-202118021187-A
Country	US
Kind code	B2
Filing date	Dec 29, 2021
Priority date	Dec 23, 2021
Publication date	Aug 29, 2023
Grant date	Aug 29, 2023

Abstract

Clean version of the Abstract A pneumatic type water-free starting self-priming device includes a driving device, and a gas-liquid separation chamber and an expandable gas-liquid separation chamber respectively arranged on two sides of the driving device. The driving device uses high-speed gas to drive a drive disk to rotate and drive a drive shaft to rotate. The gas-liquid separation chamber uses a telescopic piston shaft rod to generate a pressure difference between the gas-liquid separation chamber and outside to suck in water, so as 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 to generate a pressure difference to suck in water, so as to realize water suction, gas-liquid separation and water drainage. Also, the high-speed gas from the driving device flows through the two chambers, so that air can be discharged quickly.

First claim

What is claimed is:

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.

2. The pneumatic type water-free starting self-priming device according to claim 1 , wherein the driving device comprises, in sequence from outside to inside, an outer shell wall of the driving device, a top gas inlet, inlets of the gas acceleration channels, the gas acceleration channels, an inner shell wall of the driving device, a tapered gas flow channel, A-side gas drive disks, B-side gas drive disks, a rhombic splitting device, a bottom B-side gas inlet, and a bottom A-side gas inlet;
the top gas inlet runs through the outer shell wall of the driving device and the inner shell wall of the driving device and is communicated with a top of the tapered gas flow channel; the bottom A-side gas inlet is provided on one side of the A-side gas drive disks, runs through the outer shell wall of the driving device and the inner shell wall of the driving device, and is communicated with a bottom of the tapered gas flow channel; the bottom B-side gas inlet is provided on one side of the B-side gas drive disks, runs through the outer shell wall of the driving device and the inner shell wall of the driving device, and is communicated with the bottom of the tapered gas flow channel; the rhombic splitting device is arranged at the bottom of the tapered gas flow channel to split air intake at the bottom into an A side and a B side;
the inlets of the gas acceleration channels are respectively communicated with the gas acceleration channels and are symmetrically arranged on the two sides of the driving device; the gas acceleration channels are tapered from bottom to top;
the tapered gas flow channel is symmetrically arranged and is tapered from bottom to top;
a plurality of the B-side gas drive disks are arranged on a drive shaft on the B side;
in a gas inlet to outlet direction, a density of drive disks increases, and a dense point is close to the inlets of the gas acceleration channels; a plurality of gas flow channels and gas outlets corresponding to the gas flow channels are arranged on each of the B-side gas drive disks, a plurality of gas pores are provided on each of the gas flow channels, and pore sizes of the gas pores decrease in a proportion along the gas outlets of the gas flow channels;
the B-side gas drive disks rotate clockwise under the an action of the top gas inlet and the bottom B-side gas inlet; the A-side gas drive disks are of the same structure as the B-side gas drive disks; the A-side gas drive disks and the B-side gas drive disks are arranged on two sides of the top gas inlet; the A-side gas drive disks rotate counterclockwise under an action of the top gas inlet and the bottom A-side gas inlet; and the A-side gas drive disks and the B-side gas drive disks do not interfere with each other during rotation.

3. The pneumatic type water-free starting self-priming device according to claim 2 , wherein the gas acceleration channels each comprises a first segment, a second segment and a third segment in sequence, wherein a radius of the second segment is 0.5 times a radius of the first segment, and a radius of the third segment is 0.5 times the radius of the second segment; the tapered gas flow channel is tapered from bottom to top, and a radius of the bottom of the tapered gas flow channel is 5 times a radius of a top of the tapered gas flow channel; three gas flow channels are arranged on each of the B-side gas drive disks, and every two adjacent gas flow channels form an angle of 120°; the gas pores are circular, and radii of the gas pores decrease to 0.8 times for several times toward the gas outlets; and the gas outlets are rectangular.

4. The pneumatic type water-free starting self-priming device according to claim 1 , wherein the one-way valves each comprise a first rotating shaft, a first spring and a first baffle, wherein two sides of the first spring are respectively connected to a wall surface of the gas-liquid flow channel and the first baffle;
the vent valve comprises spires, embedded movable blocks, a wing-shaped structure, a fixing support of the vent valve, a telescopic shaft rod of the vent valve, a baffle of the vent valve, a pulley of the vent valve, a vent baffle, a solid block, and a slide rail of the vent valve; the spires are arranged on a wall surface of the gas acceleration channel and at positions corresponding to positions of the embedded movable blocks; the embedded movable blocks are arranged in the wing-shaped structure; a number of the spires and a number of the embedded movable blocks are both 2; the wing-shaped structure is initially arranged at the fixing support of the vent valve; the telescopic shaft rod of the vent valve is connected to the wing-shaped structure and the vent baffle; the vent baffle is connected to the solid block; the solid block is connected to the baffle of the vent valve and the pulley of the vent valve; the baffle of the vent valve is vertically symmetrically arranged with respect to the pulley of the vent valve; the pulley of the vent valve operates in the slide rail of the vent valve; and the slide rail of the vent valve is arranged in the wall surface of the gas-liquid flow channel.

5. The pneumatic type water-free starting self-priming device according to claim 1 , wherein the gas-liquid separation chamber comprises, in sequence from outside to inside, water inlets of the gas-liquid separation chamber, an outer shell wall of the gas-liquid separation chamber, spiral gas-liquid separation devices, an inner shell wall of the gas-liquid separation chamber, the telescopic piston shaft rod and a hexagonal concave-convex impeller,
wherein the spiral gas-liquid separation devices comprise fixed spiral gas-liquid separation d

Assignees

• Univ Jiangsu

Inventors

• Peng Guangjie
• Du Jialin
• Chang Hao
• Hong Shiming

Classifications

• B01D19/0042 Primary

  modifying the liquid flow (B01D19/0021 takes precedence) · CPC title

• F04D9/02 Primary

  Self-priming pumps · CPC title

• F04C2/00

  Rotary-piston machines or pumps (with non-parallel axes of co-operating members F04C3/00; with the working-chamber walls at least partly resiliently deformable F04C5/00; with fluid ring or the like F04C7/00; rotary-piston pumps specially adapted for elastic fluids F04C18/00; rotary-piston machines or pumps in which the working-fluid is exclusively displaced by, or exclusively displaces, one or more reciprocating pistons F04B) · CPC title

• F04D9/04

  using priming pumps; using booster pumps to prevent vapour-lock · CPC title