IP Library Granted Patent US 7,428,821
Granted Patent B2
US 7,428,821 · App. 11/257,149 · Granted Sep 30, 2008

Dehumidifying system

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Quick Facts
Patent No.
US 7,428,821
App. No.
11/257,149
Granted
Sep 30, 2008
Kind
B2
Abstract

A dehumidifying system is disclosed which comprises a dehumidifying element to extract moisture from the air, a rotor to rotate the dehumidifying element, and a heat pump to cool and heat the air within the dehumidifying system. The dehumidifying unit has at least a regeneration zone and a dehumidifying zone. The dehumidifying zone is provided at a flow passage of supply air supplied to a low dew-point chamber and dehumidifies the supply air with a dehumidifying member. The regeneration zone allows regenerating air to pass through the dehumidifying member to regenerate the dehumidifying member. The heat pump is comprised of at least a condenser and an evaporator. The condenser of the heat pump is used to at least heat air passing through the regenerating zone and the evaporator of the heat pump is used to at least cool the supply air before it enters the dehumidifying zone.

Claims (11)

1. A dehumidifying system, comprising:

a dehumidifier having a dehumidifying zone which is provided at a flow passage of supply air supplied to a low dew-point chamber and dehumidifies the supply air with a dehumidifying member and a regenerating zone which allows regenerating air to pass through the dehumidifying member to regenerate the dehumidifying member;

a diversion line which divides the supply air to be passed through the dehumidifying member and supplies the air passed through the dehumidifying member as regenerating air to the regeneration zone;

a condenser of a heat pump provided at the diversion line upstream of the dehumidifying member; and heating the regenerating air,

an evaporator of the heat pump provided at the flow passage of the supply air upstream of the dehumidifying member.

2. The dehumidifying system according to claim 1 , wherein an electric heater is provided at the flow passage of the regenerating air.

3. A dehumidifying system comprising:

a dehumidifier having a dehumidifying zone which is provided at a flow passage of supply air supplied to a low dew-point chamber and dehumidifies the supply air with a dehumidifying member and a regenerating zone which allows regenerating air to pass through the dehumidifying member to regenerate the dehumidifying member;

a diversion line which divides the supply air to be passed through the dehumidifying member and supplies the air passed through the dehumidifying member as regenerating air to the regeneration zone; and

a condenser of a heat pipe pipe provided at the diversion line upstream of the dehumidifying member and heating the regenerating air.

4. The dehumidifying system according to claim 3 , wherein an evaporating part of the heat pipe is provided at the flow passage of the regenerating air after passing through the regenerating zone.

Assignments (1)
MERGER Recorded Mar 4, 2014
From: HITACHI PLANT TECHNOLOGIES, LTD.
To: HITACHI, LTD.
Reel/Frame 032384/0877 →