JPS586179Y2 - dehumidifying dryer - Google Patents

Description

[Detailed description of the invention] This invention relates to the improvement of a dehumidifying dryer, which uses thermal energy effectively to lower the temperature of the discharged air.
To provide a dehumidifying dryer whose purpose is to remove condensation on the surface of a drain pan of an evaporator.

A conventional dehumidifying dryer has the structure shown in Figure 1.
As the fan motor 8' and compressor 4' operate, humid air passes through the evaporator 2' and is cooled to below the dew point temperature, and the water droplets generated by the evaporator 2' are removed from the drain tray 9.
′ is discharged to the outside.

On the other hand, the air dehumidified in the evaporator 2' passes through the condenser 3', thereby becoming dry air and being sent out of the machine.

However, in this type of dehumidifying and drying, as in a general refrigeration cycle, the heating amount of the condenser 3' is exceeded and the discharge air temperature is relatively higher than the intake air temperature, so dehumidifying and drying is carried out in a chamber with a constant capacity. When the machine is operated, the room temperature rises, which is a drawback when low-temperature drying is required.

On the other hand, since the condensed water flows to the drain pan 9' until its temperature is low and cools the drain pan 9', humid air comes into contact with the cooled drain pan 9' and condenses on the surface.

These condensed water droplets may fall outside the machine and wet the floor.

This idea was made with the intention of eliminating the above problems, and aims to reduce the temperature of the discharged air by effectively utilizing the heat that was conventionally discharged, and to remove condensation on the surface of the drain pan. It is something to do.

An embodiment of this invention will be described below with reference to FIGS. 2 to 4.

In the figure, 1 is a cabinet having a humid air inlet 1a and a dry air outlet 1b.In this cabinet 1, an evaporator 2 and a condenser are installed in order from the humid air inlet 1a to the dry air outlet 1b. The evaporator 2 and condenser 3 are arranged in a circuit including a compressor 4 and an accumulator 5, and constitute the main part of the dehumidifying dryer.

This invention improves a part of the dehumidifying dryer with the above-mentioned structure so that it can be used satisfactorily even under harsh conditions of high temperature and humidity, and also improves operating efficiency compared to conventional dehumidifying dryers. The dryer has a structure including a heat exchanger 6 between the compressor 4 and the condenser 2.
At the same time, this heat exchanger 6 is arranged directly below the evaporator 2, and the evaporator 2 and the heat exchanger 6 are integrally constructed with a side plate 7 serving as a holding member. However, the cooling fins 2a of the evaporator 2 and the cooling fins 6a of the heat exchanger 6 are separated from each other so that they do not exchange heat with each other.

In the figure, 8 is a fan motor, and 9 is a drain plate.

In the dehumidifying dryer of this invention configured as described above, water droplets condensed on the surface of the cooling fins 2a of the evaporator 2 travel down the fins 2a and fall to the bottom, and then drop onto the fins 6a of the heat exchanger 6. Therefore, the high temperature gas from the compressor 4 can be cooled with condensed water.

Then, the cooled gas is supplied to the condenser 2, so
The air dehumidified by this condenser 2 can be lowered in temperature.

On the other hand, the condensed water falling into the drain pan 9 is transferred to the heat exchanger 6.
Since it acts as a cooling medium for high-temperature gas, the temperature will not rise and condensation will not form on the outer surface of the drain pan 9.

Therefore, the dehumidifying dryer of this invention can exhibit excellent effects under harsh conditions of high temperature and humidity, and
Operational efficiency can be improved compared to conventional dehumidifying dryers.

[Brief explanation of drawings]

In the drawings, FIG. 1 is a schematic diagram of a conventional dehumidifying dryer, FIG. 2 is a schematic diagram of the dehumidifying dryer of this invention, and FIGS. 3 and 4 are a front view and a side view of the main parts thereof. 2... Evaporator, 2a... Cooling fin,
3...Condenser, 4...Compressor, 6...
... Heat exchanger, 6a ... Cooling fin, 7.
...Holding member (side plate).

Claims (1)

[Scope of utility model registration request] A heat exchanger disposed between the connection portion of the compressor and the condenser is disposed below the evaporator, and the heat exchanger and the evaporator are integrally configured via the same holding member. , a dehumidifying dryer in which the cooling fins of the heat exchanger and the cooling fins of the evaporator are separated so that they do not exchange heat with each other.