JPS63135731A - Dehumidifier device - Google Patents

Abstract

PURPOSE:To enable an effective dehumidifying operation to be performed in a heat pump type dehumidifier suitable for drying of clothes by a method wherein air of high humidity is directly dehumidified and air of low humidity is precooled with dehumidified air before it enters a condenser through an evaporator. CONSTITUTION:This dehumidifer device may form a freezing cycle by connecting a compressor 1, a condenser 2, a metering device 4 and an evaporator 3 with a coolant pipe 5. Wet air is cooled by this evaporator 3 and a heat pump for removing moisture in the air is made body. At an initial period of a clothes drying operation, air to be dehumidified is put into a passage from a flow inlet port 7. In this case, since the air is directly flowed in the evaporator 3, a large amount of air can be flowed and a large amount of wet air can be dehumidified. As the clothes are dried, air to be dehumidified is inputted to from an inlet port 7 into a flow passage A. In this case the air enters a heat exchanged 5, heat exchanged with already dehumidified air and precooled, thereafter the air is passed through the evaporator 3 and dehumidified.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a dehumidifying device suitable for drying clothes using a heat pump.

[Background technology]

When dehumidifying and drying clothing, the surrounding air has high humidity in the initial state when the moisture content of the clothing is high, and becomes low humidity when drying is nearing completion.

In a heat pump type dehumidifier, precooling is not necessary when the humidity is high, but is necessary when the humidity is low, thereby increasing the dehumidification efficiency. Furthermore, in order to increase the drying speed of clothes, it is necessary to diffuse the highly waxy air around the clothes.

[Purpose of the invention]

The present invention aims to provide a dehumidifying device suitable for drying clothes that is capable of dehumidifying with a large air volume and highly efficient dehumidification with a small air volume.

[Disclosure of the invention]

The gist of this invention is that a compressor 1, condenser 2, throttle device 4, and evaporator 3 are connected in this order through a refrigerant pipe 6 to form a refrigeration cycle, and the evaporator 3 cools and dehumidifies humid air. In a dehumidifying device, a heat exchanger 5 is disposed in the flow path of air from the evaporator 3 to the condenser 2, and the air that passes through the heat exchanger 5 and enters the evaporator 3 is introduced into the inlet 7 of the air to be dehumidified. This dehumidification device is characterized in that both a channel A and a channel B that directly enters the evaporator 3 are connected and can be switched between the two.

The following description will be made based on the illustrated embodiments.

This #humidity device connects a compressor 1, a condenser 2, a throttle device 4, and an evaporator 3 in this order through a refrigerant pipe 6 to form a refrigeration cycle, and the evaporator 3 cools humid air to eliminate moisture in the air. The main body is a heat pump that removes

A heat exchanger 5 is arranged in the air flow path from the evaporator 3 to the condenser 2.

This heat exchanger 5 exchanges heat between the air dehumidified by the evaporator 3 and flowing to the condenser 2 and the air from outside before flowing to the evaporator 3, and generally a cross-flow type is used. Ru.

Reference numeral 7 denotes an inlet for the air to be dehumidified, and a flow path A that enters the evaporator 3 through the heat exchanger 5 and a flow path B that directly enters the evaporator 3 are connected. The inlet 7 is equipped with an air passage switching damper (not shown), so that the air to be dehumidified can be selectively flowed into either the passage A or the passage raB.

The usage conditions of this dehumidifier will be explained below.

At the beginning of drying clothes, air to be dehumidified is introduced into the flow path B from the inlet 7. In this case, since the air is flowed directly to the evaporator 3, a large amount of air can be flowed, and a large amount of highly humid air can be dehumidified. Also, since it sucks in a large amount of air, it can diffuse the highly humid air around clothing, making it suitable for dehumidification.

As the drying of the clothes progresses, air to be dehumidified is introduced into the flow path A from the inlet 7. In this case, this air enters the heat exchanger 5 and exchanges heat with the dehumidified air that has already passed through the evaporator 3. It is pre-cooled by passing through an evaporator 3 and then dehumidified. Because the heat exchanger 5 is placed in the flow path A, there is a large pressure drop when the air to be dehumidified flows (although only a small amount of air can flow).
As mentioned above, since it can be pre-cooled, the low humidity air that has been dehumidified can be efficiently dehumidified.

〔Effect of the invention〕

As described above, in the dehumidifying device of the present invention, by switching the air flow path, high-humidity air is directly dehumidified without pre-cooling, and low-humidity air is dehumidified before it exits the evaporator and enters the condenser. Since it is possible to dehumidify after pre-cooling with chilled air, efficient dehumidification can be achieved and it is suitable for drying clothes. A dehumidifier with such a function is equipped with a heat exchanger that pre-cools the incoming air with dehumidified air in the air flow path from the evaporator to the condenser, and also directs the incoming air to the evaporator or heats it. By making it possible to select the input via an exchanger, this is possible with the structure of an fIJ vehicle.

[Brief explanation of the drawing]

The drawing is a configuration diagram showing an embodiment of the present invention. l... Compressor, 2... Condenser, 3... Evaporator, 5
... Heat exchanger, 6... Refrigerant pipe, 7... Inflow port.

Claims (1)

[Claims] (1) A dehumidification device in which a compressor 1, a condenser 2, a throttle device 4, and an evaporator 3 are connected in this order through a refrigerant pipe 6 to form a refrigeration cycle, and the evaporator 3 cools and dehumidifies humid air. A heat exchanger 5 is installed in the air flow path from the evaporator 3 to the condenser 2.
is arranged, and both the flow path A that enters the evaporator 3 through the heat exchanger 5 and the flow path B that directly enters the evaporator 3 are connected to the inlet 7 of the air to be dehumidified, and the two can be freely switched. A dehumidifying device characterized by: