Atomizer and humidity controller

Patent metadata

Field	Value
Publication number	US-2021107027-A1
Application number	US-201917055467-A
Country	US
Kind code	A1
Filing date	May 15, 2019
Priority date	May 15, 2018
Publication date	Apr 15, 2021
Grant date	—

Abstract

An atomizer and a humidity controller that are able to separate water with high atomization efficiency are provided. The atomizer includes: a housing that includes an intake port and a discharge port; an ultrasonic wave generating unit that irradiates at least some hygroscopic liquid stored in the housing and containing a hygroscopic substance with ultrasonic waves and generates atomized droplets containing moisture; and an adjustment unit that adjusts relative humidity to reduce a vapor pressure determined in accordance with the relative humidity to less than a saturated vapor pressure of the hygroscopic liquid in at least a portion of a gas-liquid interface in an inner space of the housing.

First claim

1 . An atomizer comprising:
a housing that includes an intake port and a discharge port; an ultrasonic wave generating unit that irradiates at least some hygroscopic liquid stored in the housing and containing a hygroscopic substance with ultrasonic waves and generates atomized droplets containing moisture; and an adjustment unit that adjusts relative humidity to reduce a vapor pressure determined in accordance with the relative humidity to less than a saturated vapor pressure of the hygroscopic liquid in at least a portion of a gas-liquid interface in an inner space of the housing.

2 . The atomizer according to claim 1 , further comprising
a supply channel which is connected to the intake port and through which gas is supplied to the inner space, wherein the adjustment unit includes a cooling and condensing unit that is connected to a portion of the supply channel and that cools the gas and thereby condenses and removes at least some moisture contained in the gas.

3 . The atomizer according to claim 2 , further comprising
a transport channel that connects the discharge port and a portion of the supply channel, wherein a connection part of the transport channel is arranged on an inflow side of the cooling and condensing unit.

4 . The atomizer according to claim 1 , wherein the adjustment unit includes a heating unit that heats at least a portion of the gas-liquid interface in the inner space.

5 . The atomizer according to claim 4 , wherein the heating unit is arranged above the ultrasonic wave generating unit.

6 . The atomizer according to claim 4 , further comprising
a supply channel which is connected to the intake port and through which gas is supplied to the inner space, wherein the heating unit is provided in a portion of the supply channel.

7 . The atomizer according to claim 4 , further comprising
a supply channel which is connected to the intake port and through which gas is supplied to the inner space, wherein the adjustment unit includes a cooling and condensing unit that is connected to a portion of the supply channel and that cools the gas and thereby condenses and removes at least some moisture contained in the gas, and the heating unit is provided between the cooling and condensing unit and the intake port.

8 . The atomizer according to claim 7 , further comprising
a transport channel that connects the discharge port and a portion of the supply channel, wherein a connection part of the transport channel is arranged on an inflow side of the cooling and condensing unit.

9 . A humidity controller comprising:
a moisture absorption unit that brings hygroscopic liquid and air into contact with each other and thereby causes the hygroscopic liquid to absorb at least some moisture contained in the air; an atomizing and regenerating unit that atomizes and removes at least some moisture contained in the hygroscopic liquid supplied from the moisture absorption unit and thereby regenerates the hygroscopic liquid; and a liquid transport channel that connects the moisture absorption unit and the atomizing and regenerating unit, wherein the atomizing and regenerating unit includes the atomizer according to claim 1 .

10 . The humidity controller according to claim 9 ,
the moisture absorption unit comprising a moisture absorption tank storing the hygroscopic liquid, the humidity controller further comprising a channel that connects an inner space of the moisture absorption tank and the intake port.

Assignees

• Sharp Kk

Inventors

• OCHI Sho
• Ide Tetsuya
• Hamada Hiroka
• Sakuma Jun
• Kamada Tsuyoshi

Classifications

• B05B17/0615

  spray being produced at the free surface of the liquid or other fluent material in a container and subjected to the vibrations · CPC title

• B05B7/1613

  comprising means for heating the atomising fluid before mixing with the material to be sprayed · CPC title

• B05B7/16

  incorporating means for heating {or cooling} the material to be sprayed {(spraying by means of explosions B05B7/0006)} · CPC title

• B05B7/0081

  Apparatus supplied with low pressure gas, e.g. "hvlp"-guns; air supplied by a fan · CPC title

• B05B17/0669

  Excitation frequencies · CPC title