Microbubble generator and laundry treating device

Patent metadata

Field	Value
Publication number	US-11598041-B2
Application number	US-201816971306-A
Country	US
Kind code	B2
Filing date	Dec 14, 2018
Priority date	Nov 5, 2018
Publication date	Mar 7, 2023
Grant date	Mar 7, 2023

Abstract

A microbubble generator and a laundry treating device. The microbubble generator includes: an air dissolving tank, having an air dissolving cavity defined therein, and an inlet and an outlet configured to allow water to flow in and out, the inlet being located above the outlet; a baffle, provided in the air dissolving tank, at least partially located between the inlet and the outlet in a horizontal direction, and provided with a gap and/or a through hole; and a cavitator, provided outside the air dissolving tank and connected with the outlet, or provided at the outlet.

First claim

What is claimed is:

1. A microbubble generator, comprising:
an air dissolving tank, defining an air dissolving cavity therein, and having an inlet and an outlet configured to allow water to flow in and out, the inlet being provided at a top surface of the air dissolving tank, the outlet being provided at a bottom surface of the air dissolving tank;
a flat baffle plate, provided in the air dissolving tank and located between the inlet and the outlet in a horizontal direction, and provided with a gap and/or a through hole; and
a cavitator, provided outside the air dissolving tank and connected with the outlet, or provided at the outlet;
wherein the inlet and the outlet are staggered in a horizontal direction;
wherein the inlet is positioned in left side of the baffle plate, and the outlet is positioned in right side of the baffle plate;
wherein the baffle plate is configured to partially block the water flowing from the left side towards the right side so as to form splash and facilitate microbubble generation;
wherein the gap and the through hole enable the water to flow through and block bubbles caused by the splash to flow through;
wherein the air dissolving cavity has a square section in the horizontal direction;
wherein in the horizontal direction, the inlet and the outlet are located at two farmost ends of the air dissolving cavity.

2. The microbubble generator according to claim 1 , wherein a distance between the inlet and at least one side wall of the air dissolving cavity is less than 50 mm.

3. The microbubble generator according to claim 2 , wherein the distance between the inlet and the at least one side wall of the air dissolving cavity ranges from 1 mm to 20 mm.

4. The microbubble generator according to claim 1 , wherein the air dissolving tank is provided with two air dissolving semi-casings fastened with each other, the inlet is provided in one of the air dissolving semi-casings and the outlet is provided in another one of the air dissolving semi-casings.

5. The microbubble generator according to claim 4 , wherein the two air dissolving semi-casings are in contact fit with each other at a joint by means of a step surface.

6. The microbubble generator according to claim 1 , wherein an outer surface of the air dissolving tank is provided with reinforcing ribs arranged horizontally and vertically in a staggered manner.

7. The microbubble generator according to claim 1 , wherein an upper portion of the air dissolving tank is provided with a water inlet pipe in communication with the top of the air dissolving cavity, a lower portion of the air dissolving tank is provided with a water outlet pipe in communication with the bottom of the air dissolving cavity, and the water inlet pipe and the water outlet pipe are disposed horizontally.

8. The microbubble generator according to claim 1 , wherein the microbubble generator is configured for a flow velocity of outflow water is less than a flow velocity of inflow water when the air is dissolved.

9. The microbubble generator according to claim 1 , wherein the cavitator comprises:
a cavitation casing, provided therein with a water cavity having a cavitation inlet and a cavitation outlet for water to flow in and out, the cavitation inlet being connected with the outlet of the air dissolving tank; and
a cavitation ball, movably provided in the water cavity and configured to partially block the cavitation outlet to form a Venturi channel between the cavitation ball and an inner wall of the water cavity when the water flowing in from the cavitation inlet.

10. A laundry treating device, provided with the microbubble generator according to claim 1 at a water inlet of the laundry treating device.

Assignees

• Wuxi Little Swan Electric Co Ltd

Inventors

• Gao Yuan
• Deng Yongjian
• Xiong Ming
• Sun Jin

Classifications

• B01F25/4337

  Mixers with a diverging-converging cross-section · CPC title

• B01F23/238

  using vibrations, electrical or magnetic energy, radiations · CPC title

• D06F39/088

  Liquid supply arrangements · CPC title

• B01F31/81

  by vibrations generated inside a mixing device not coming from an external drive, e.g. by the flow of material causing a knife to vibrate or by vibrating nozzles · CPC title

• B01F25/3121

  with additional mixing means other than injector mixers, e.g. screens, baffles or rotating elements · CPC title