Daikin Industries, Ltd.

Hirohiko Matsushita

Takahisa Sueoka

Shuji Ikegami

Shun Yoshioka

Hironobu Teraoka

Eisaku Okubo

Akira Kamino

Hideshi Tanaka

Lan Jiang

Tadashi Ohnishi

Kouzou Yoshinaga

Shuuji Ikegami

In an adsorption heat exchanger, adsorbent expanded by absorbing moisture and contracted by dissipating moisture is supported on a surface of a heat exchanger body. An adsorbent layer containing the adsorbent is formed on the surface of the heat exchanger body by applying slurry containing the adsorbent in a contracted state to the surface of the heat exchanger body and drying the slurry. A solvent of the slurry contains alcohol as a main component.

Method for manufacturing a heat exchanger

An apparatus () for manufacturing an adsorption heat exchanger includes a storage tank () for storing a source liquid prepared by dispersion of an adsorbent in a liquid binder, a support member () for supporting a heat exchanger main body (), and a shaft member (). The heat exchanger main body () is rotated around the shaft member () extending along the direction in which a plurality of fins () are arrayed. When the heat exchanger main body () is rotated in the source liquid, the source liquid is distributed throughout the entire area of the void between each adjacent pair of the fins () whereby the source liquid is adhered to the entire surface area of each of the fins (). On the other hand, when the heat exchanger main body () is rotated in the air, excess source liquid remaining in the void between each adjacent pair of the fins () is scattered away therefrom, and a layer of the source liquid is formed throughout the entire surface area of each of the fins ().

Method for manufacturing an adsorption heat exchanger

An impeller is provided for a blower having a blade (), a plurality of notches () provided at predetermined intervals on a side edge of the blade (), and a plurality of smooth portions () each provided between a pair of the notches (). Since a transverse vortex discharged from the side edge of the blade (), and on a large scale, is organized by vertical vortexes formed in the notches () on a small scale so as to be segmented into stable transverse vortexes, it becomes possible to reduce aerodynamic noise.

Impeller for blower and air conditioner having the same

The difference in linear thermal expansion coefficient between the fins () and the adsorbent layer () is made smaller than the difference in the linear thermal expansion coefficient between the fins () and the adsorbent.

Heat exchanger

For the purpose of increasing the area of an adsorbent to be in contact with the air, a heat exchanger () includes: a fin set () including a plurality of fins () arranged parallel to each other with an interval therebetween; a framework () arranged to surround end faces of the fin set () in the arrangement direction of the fins and end faces of the fin set () in the lengthwise direction of the fins; a serpentine heat transfer tube () having straight parts () penetrating the fin set () in the arrangement direction of the fins and U-shaped parts () protruding out of the framework (); and a connector tube () for connecting the heat transfer tube with a refrigeration pipe. An adsorbent capable of adsorbing moisture from the air and desorbing the moisture into the air is supported on the surfaces of the fin set (), the framework (), the heat transfer tube () and the connector tube (), respectively.

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Osaka, Japan

Hirohiko Matsushita