Ultra-fine bubble-containing liquid manufacturing apparatus

Patent metadata

Field	Value
Publication number	US-2022331755-A1
Application number	US-202217690248-A
Country	US
Kind code	A1
Filing date	Mar 9, 2022
Priority date	Apr 14, 2021
Publication date	Oct 20, 2022
Grant date	—

Abstract

Provided is an ultra-fine bubble-containing liquid manufacturing apparatus that can suppress viable cell contamination inside a UFB generating unit. To this end, it is provided with an ultra-fine bubble generating unit that generates an ultra-fine bubble by making film boiling by a heating unit in a liquid in which a gas is dissolved, and a radiating unit that is capable of irradiating a wetted portion of the ultra-fine bubble generating unit with ultraviolet rays.

First claim

What is claimed is:

1 . An ultra-fine bubble-containing liquid manufacturing apparatus, comprising:
an ultra-fine bubble generating unit that generates an ultra-fine bubble by making film boiling by a heating unit in a liquid in which a gas is dissolved; and a first radiating unit that is capable of irradiating a wetted portion of the ultra-fine bubble generating unit with ultraviolet rays.

2 . The ultra-fine bubble-containing liquid manufacturing apparatus according to claim 1 , wherein
the ultra-fine bubble generating unit includes a bubbling chamber that covers the heating unit and an ejecting port that communicates with the bubbling chamber as the wetted portion, and ejects a liquid from the ejecting port.

3 . The ultra-fine bubble-containing liquid manufacturing apparatus according to claim 2 , wherein
the first radiating unit is provided to radiate the ultraviolet rays toward an ejecting port surface in which the ejecting port of the ultra-fine bubble generating unit is provided.

4 . The ultra-fine bubble-containing liquid manufacturing apparatus according to claim 3 , wherein
the first radiating unit is provided to face the ejecting port surface.

5 . The ultra-fine bubble-containing liquid manufacturing apparatus according to claim 2 , wherein
a member forming the ejecting port is a member that allows the ultraviolet rays to pass therethrough.

6 . The ultra-fine bubble-containing liquid manufacturing apparatus according to claim 2 , further comprising:
a receiving unit that receives the liquid ejected from the ultra-fine bubble generating unit.

7 . The ultra-fine bubble-containing liquid manufacturing apparatus according to claim 6 , wherein
the receiving unit is a member that allows the ultraviolet rays to pass therethrough.

8 . The ultra-fine bubble-containing liquid manufacturing apparatus according to claim 1 , further comprising:
a circulating route that circulates the liquid such that the liquid flows out from the ultra-fine bubble generating unit and the liquid also flows into the ultra-fine bubble generating unit.

9 . The ultra-fine bubble-containing liquid manufacturing apparatus according to claim 8 , further comprising:
a second radiating unit that is capable of irradiating the liquid in the circulating route with ultraviolet rays.

10 . The ultra-fine bubble-containing liquid manufacturing apparatus according to claim 9 , wherein
the second radiating unit is provided on an upstream side of the ultra-fine bubble generating unit in the circulating route.

11 . The ultra-fine bubble-containing liquid manufacturing apparatus according to claim 9 , wherein
the second radiating unit radiates ultraviolet rays with a wavelength within a range from 240 nm to 280 nm.

12 . The ultra-fine bubble-containing liquid manufacturing apparatus according to claim 9 , further comprising:
a filter between a position irradiated by the second radiating unit in the circulating route and the ultra-fine bubble generating unit.

13 . The ultra-fine bubble-containing liquid manufacturing apparatus according to claim 9 , wherein
a position irradiated by the second radiating unit in the circulating route is formed of a member that allows the ultraviolet rays to pass therethrough.

14 . The ultra-fine bubble-containing liquid manufacturing apparatus according to claim 12 , wherein
the filter has a filtering capability of 0.5 μm.

15 . The ultra-fine bubble-containing liquid manufacturing apparatus according to claim 1 , further comprising:
a dissolving unit that dissolves a gas into a liquid, wherein the liquid supplied from the dissolving unit flows into the ultra-fine bubble generating unit.

16 . The ultra-fine bubble-containing liquid manufacturing apparatus according to claim 15 , wherein
the dissolving unit dissolves oxygen into a liquid.

17 . The ultra-fine bubble-containing liquid manufacturing apparatus according to claim 1 , further comprising:
a bubbling chamber that covers the heating unit, wherein the liquid is supplied to the bubbling chamber as the wetted portion, and the ultra-fine bubble generating unit causes the liquid to flow out from the bubbling chamber.

18 . The ultra-fine bubble-containing liquid manufacturing apparatus according to claim 1 , wherein
the first radiating unit radiates ultraviolet rays with a wavelength within a range from 240 nm to 280 nm.

19 . The ultra-fine bubble-containing liquid manufacturing apparatus according to claim 1 , wherein
the first radiating unit radiates the ultraviolet rays in at least either of a case where the ultra-fine bubble generating unit makes film boiling by the heating unit and a case where the ultra-fine bubble generating unit does not make film boiling by the heating unit.

Assignees

• Canon Kk

Inventors

• Shimoyama Hiroyuki
• Kubota Masahiko
• Mihara Hiroaki
• Yamamoto Akira
• Nakazawa Ikuo
• Kashino Toshio

Classifications

• B01D19/0047

  Atomizing, spraying, trickling · CPC title

• H05B3/82

  Fixedly-mounted immersion heaters · CPC title

• B01F2035/99

  Heating · CPC title

• B01F23/703

  Degassing or de-aerating materials; Replacing one gas within the materials by another gas · CPC title

• B01F23/2323

  by circulating the flow in guiding constructions or conduits · CPC title