Daikin Industries, Ltd.

Takahisa Sueoka

Akira Kamino

Hirohiko Matsushita

Shuji Ikegami

Guannan Xi

Tomohiro Yabu

Shun Yoshioka

Eisaku Okubo

Masaya Kasai

Lan Jiang

Takema Nakazawa

Shuuji Ikegami

A heat exchanger includes partition members, alternately stacked spacing members, and seals. The spacing members include first and second spacing members forming the first and second passages. The first and second spacing members each have a frame portion along a periphery of the partition members. The frame portion of the first and second spacing members have first and second communication sections having first and second communication openings allowing the first and second passages to communicate with outside of the frame portion, and first and second partition walls separating the first and second passages from the outside of the frame portion. The frame portions of the first and second spacing members further have first and second notches provided in portions of the first and second partition walls, and open on an outer side surface of the first and second partition walls. The seals cover surfaces of the first and second notches.

Heat exchanger and method for manufacturing heat exchanger

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

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

Disclosed is a dehumidification unit which comprises alternate laminations of an adsorption element () provided with a plurality of first air ventilation passages () and a cooling element () provided with a plurality of second air ventilation passages (). In the dehumidification unit, the cooling element () is provided, at a planewise inner area thereof, with an opening (), thereby being shaped like a frame. Cooling air (Ab) is passed through the opening (). With such configuration, the length of the second air ventilation passages () becomes shorter by an amount corresponding to the formation of the opening (). Consequently, the pressure loss of the cooling air (Ab) is reduced and its flow rate increases accordingly. In addition, at the opening's () area, the cooling air (Ab) is brought into direct contact with the adsorption element's () side, and the efficiency of heat transfer therebetween is improved. Hereby, as a synergistic effect of the increased flow rate of the cooling air (Ab) and the improved heat transfer efficiency, the heat-liberation action of heat of adsorption is accelerated and the dehumidification capability of the dehumidification unit is maintained at high levels over a long period of time.

Dehumidification element

A dehumidification unit comprised of alternate laminations of an adsorption element which supports an adsorbent and which is provided with a first air ventilation passage and a cooling element, which is provided with a second air ventilation passage. The first air ventilation passage of the adsorption element and the second air ventilation passage of the cooling element are adjacently formed, with a single plate member lying between the first and second air ventilation passages. As a result of such arrangement, as compared with a structure formed with two plate members lying therebetween second air ventilation passages, the performance of heat transfer between the air ventilation passages is further improved, whereby the dehumidification capability of the dehumidification unit is maintained at high levels over a long period of time.

Dehumidification unit and adsorption element for use in such a dehumidification unit

A humidity controller apparatus comprises: a first heat exchange chamber () for accommodating a first heat exchanger (), an adsorbent material being supported on a surface of said first heat exchanger (); and a second heat exchange chamber (), formed adjacently to said first heat exchange chamber (), for accommodating a second heat exchanger (), an adsorbent material being supported on a surface of said second heat exchanger (). A first air inflow passage () and a first air outflow passage () are formed along one end surface in a thickness direction in which respective one surfaces of said two heat exchange chambers () continue and which are arranged in a superimposed manner in the thickness direction of both said heat exchange chambers (). A second air inflow passage () and a second air outflow passage () are formed along another end surface which is an end surface where respective one surfaces of said two heat exchange chambers () continue and which is situated face to face with said one end surface, and which are arranged in a superimposed manner in the thickness direction of both said heat exchange chambers (). Opening/closing means (, . . . ) are provided for opening and closing openings (, . . . ) for communication between said first heat exchange chamber () and said second heat exchange chamber (), and each said inflow passage () and each said outflow passage ().

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Osaka, Japan

Takahisa Sueoka