Self-priming apparatus for quick no-water startup

Patent metadata

Field	Value
Publication number	US-12158166-B2
Application number	US-202117914366-A
Country	US
Kind code	B2
Filing date	Nov 1, 2021
Priority date	Oct 28, 2021
Publication date	Dec 3, 2024
Grant date	Dec 3, 2024

Abstract

A self-priming apparatus for quick no-water startup includes a front-stage inlet chamber, a middle-stage gas-liquid separation chamber, and a rear-stage gas-liquid separation chamber. A plurality of two-stage chamber gas-liquid separation one-way channels are symmetrically arranged between adjacent chambers of the front-stage inlet chamber, the middle-stage gas-liquid separation chamber and the rear-stage gas-liquid separation chamber. A plurality of one-way outlets are symmetrically arranged in an inner cavity of the rear-stage gas-liquid separation chamber. By decreasing or increasing the volumes of an outer cavity and an inner cavity of the front-stage inlet chamber, water is sucked in due to pressure difference and water intake and preliminary gas-liquid separation are carried out. The middle-stage gas-liquid separation chamber is configured for gas-liquid separation. By decreasing or increasing the volume of the inner cavity of the rear-stage gas-liquid separation chamber, water is rapidly expelled due to pressure difference and gas-liquid separation is carried out.

First claim

What is claimed is:

1. A self-priming apparatus for quick no-water startup, comprising a structure of a symmetrical cylinder and comprising a front-stage inlet chamber, a middle-stage gas-liquid separation chamber, and a rear-stage gas-liquid separation chamber, wherein a plurality of two-stage chamber gas-liquid separation one-way channels are symmetrically arranged between adjacent chambers of the front-stage inlet chamber, the middle-stage gas-liquid separation chamber and the rear-stage gas-liquid separation chamber, a plurality of one-way outlets are symmetrically arranged in an inner cavity of the rear-stage gas-liquid separation chamber, and fixed supports are respectively arranged on bottom sides of the front-stage inlet chamber, the middle-stage gas-liquid separation chamber, and the rear-stage gas-liquid separation chamber; by decreasing or increasing volumes of an outer cavity and an inner cavity of the front-stage inlet chamber, water is sucked in due toa pressure difference and a water intake and a preliminary gas-liquid separation are carried out; the middle-stage gas-liquid separation chamber is configured for gas-liquid separation; and by decreasing or increasing a volume of the inner cavity of the rear-stage gas-liquid separation chamber, water is rapidly expelled due to a pressure difference and a water discharge and a gas-liquid separation are carried out, wherein the rear-stage gas-liquid separation chamber is sequentially provided from outside to inside with an outer casing wall of the rear-stage gas-liquid separation chamber, a plurality of inner and outer casing wall connecting devices, an inner casing wall of the rear-stage gas-liquid separation chamber, contraction-type gas-liquid separation rotating shaft rods, gas-liquid separation extension channels, and a triangular impeller; the inner and outer casing wall connecting devices are symmetrically arranged between the outer casing wall of the rear-stage gas-liquid separation chamber and the inner casing wall of the rear-stage gas-liquid separation chamber, wherein a first inner impeller built in each of the inner and outer casing wall connecting devices is arranged in a fixed shaft rod of each of the inner and outer casing wall connecting devices, and two ends of the fixed shaft rod of each of the inner and outer casing wall connecting devices are connected to the inner casing wall and the outer casing wall through tenth-stage springs, respectively; a plurality of rear-stage inner casing wall expansion devices are evenly arranged in the inner casing wall of the rear-stage gas-liquid separation chamber; each of the rear-stage inner casing wall expansion devices is provided with a third wall pipe, an eleventh-stage spring, and third pushing shafts symmetrically arranged on two sides of the eleventh-stage spring, wherein the eleventh-stage spring and the third pushing shafts are arranged in the third wall pipe; a plurality of second inner impellers built in the inner casing wall of the rear-stage gas-liquid separation chamber are evenly distributed in the inner casing wall of the rear-stage gas-liquid separation chamber; a contraction-type slideway is arranged on an inner side of the inner casing wall of the rear-stage gas-liquid separation chamber; two magnets built in a surface of the inner casing wall of the rear-stage gas-liquid separation chamber are provided and are symmetrically arranged about a radially inner one of the second inner impellers built in the inner casing wall of the rear-stage gas-liquid separation chamber; the two magnets built in the surface of the inner casing wall of the rear-stage gas-liquid separation chamber each form an angle of 300 with the radially inner one of the second inner impellers built in the inner casing wall of the rear-stage gas-liquid separation chamber, and repel a magnet built in a rotatable arm rod; the contraction-type gas-liquid separation rotating shaft rods comprise three contraction-type gas-liquid separation rotating shaft rods and divide the inner cavity of the rear-stage gas-liquid separation chamber; each of the contraction-type gas-liquid separation rotating shaft rods is provided with shaft beads, a trapezoidal slidable device, a first rod impeller, a twelfth-stage spring, a second rod impeller, and the rotatable arm rod, wherein a first-stage impeller in the rotatable arm rod, the magnet built in the rotatable arm rod, and a second-stage impeller in the rotatable arm rod are sequentially arranged toward an axial center in the rotatable arm rod; twosides of the magnet built in the rotatable arm rod are connected to the first-stage impeller in the rotatable arm rod and the second-stage impeller in the rotatable arm rod through thirteenth-stage springs, respectively; the shaft beads are arranged in the trapezoidal slidable device and are configured for sliding along the contraction-type slideway; the twelfth-stage spring is arranged in the trapezoidal slidable device; the first rod impeller and the second rod impeller are arranged at two sides of the twelfth-stage spring, respectively; and the first rod impeller is arranged at a front end of the trapezoidal slidable device in a moving direction, and the second rod impeller is arranged at a rear end of the trapezoidal slidable device in the moving direction; the gas-liquid separation extension channels comprise three gas-liquid separation extension channels, and two ends of each of the gas-liquid separation extension channels are connected to the first impeller in the rotatable arm rod and the second-stage impeller in an adjacent rotatable arm rod to the rotatable arm rod, respectively; each of the gas-liquid separation extension channels is provided with a third inner impeller built in each of the gas-liquid separation extension channels, and two sides of the third inner impeller built in each of the gas-liquid separation extension channels are connected to the first impeller in the rotatable arm rod and the second-stage impeller in the adjacent rotatable arm rod to the rotatable arm rod through sixteenth-stage springs, respectively; the triangular impeller is provided with radially outer rotating shafts and fifteenth-stage springs, wherein the radially outer rotating shafts comprise three radially outer rotating shafts and are arranged at three vertices of the triangular impeller; the fifteenth-stage springs comprise three fifteenth-stage springs and are respectively connected to the contraction-type gas-liquid separation rotating shaft rods and the triangular impeller; the triangular impeller runs coaxially in an identical direction with a wheel-type impeller and performs a reverse rotation.

2. The self-priming apparatus for quick no-water startup according to claim 1 , wherein the front-stage inlet chamber is sequentially provided from outside to inside with inlets, an outer casing wall of the front-stage inlet chamber, gas-liquid separation type one-way channels, an inner casing wall of the front-stage inlet chamber, a plurality of gas-liquid separation one-way openings, two-stage pushing shaft rods, and the wheel-type impeller; the inlets comprise two inlets and are symmetrically arranged on the outer casing wall of the front-stage inlet chamber, and a gas-liquid separation type one-way channel of the gas-liquid separation type one-way channels is arranged at a joint between each of the inlets and the outer casing wall of the front-stage inlet chamber; rotating shafts of the gas-liquid separation type one-way channel, cover plates of the gas-liquid separation type one-way channel, and rubber connectors of the gas-liquid separation type one-way channel are symmetrically arranged on two sides of each of the gas-liquid separation type one-way channels, and first-stage springs, fixed shaft rods, and fourth inner impellers built in the fixed shaft rods are asymmetrically arranged on the two sides of each of the gas-liquid separation type

Assignees

• Univ Jiangsu

Inventors

• Li Xiaowei
• Chang Hao
• Du Jialin
• Peng Guangjie
• Shi Weidong
• Hong Shiming

Classifications

• B01D19/0052

  in rotating vessels, vessels containing movable parts or in which centrifugal movement is caused (B01D19/0026 takes precedence) · CPC title

• B01D19/0036

  Flash degasification (the other groups take precedence) · CPC title

• F04B43/0054

  particularities of the flexible members · CPC title

• F04D9/007

  Preventing loss of prime, siphon breakers (stopping of pumps F04D15/02) · CPC title

• F04D9/006

  by venting gas or using gas valves · CPC title