JP2002276997A - Dehumidifying drier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate inconvenience that the condensate in a condenser installed in the housing of a dehumidifying drier accumulates in the tank in the housing. SOLUTION: The drain port (16) of a heat exchanger (3) is extended outside a housing (1) to freely connect a hose (20) with the drain port (16) directly.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dehumidifying dryer for directly discharging dew water in a heat exchanger to outside a housing.

[0002]

2. Description of the Related Art A dehumidifying dryer is used for dehumidifying a drying room or a bedroom for a bathroom or wet clothes. An example of this dehumidifying dryer is described in, for example, Japanese Patent Application Laid-Open No. H11-300145.
No. 1993. This example includes, in a case, a filter; a condenser; a dehumidifying rotor; a suction fan; a dehumidifying rotor regeneration air circuit passing through the dehumidification rotor and the condenser and including a fan and a regeneration heater.

The air to be dehumidified in a drying chamber or the like is sucked by a fan, takes out dust by a filter, and then passes through a condenser. Here, heat exchange is performed with the air for regeneration of the dehumidification rotor in the condenser, the air to be dehumidified absorbs heat to increase the temperature, and the radiated regeneration air condenses moisture. The heated air to be dehumidified passes through the dehumidification rotor and is absorbed by the desiccant to become dry air. still,
At this time, the temperature of the dry air is increased by the self-heating of the desiccant, and the dried air becomes heated dry air and is discharged from the case into the room.

[0004] Regeneration of the moisture-absorbing rotor that has absorbed moisture is performed by heating the air in the air circuit for regeneration of the dehumidifying rotor with a regeneration heater to produce high-temperature air, and blowing the high-temperature air to the dehumidification rotor with a fan. That is, the heated regeneration air receives moisture from the desiccant of the dehumidifying rotor and is sent to the condenser. This air radiates heat in the condenser to condense water, and is sent again to the regeneration heater by the fan. Condensed water is stored in a tank.

[0005] The dehumidifying rotor is formed by impregnating and supporting a moisture absorbent such as zeolite or silica gel on a belt-like base material such as corrugated paper, and corrugating the material to form a rotor. The dehumidification rotor is rotated by a motor, and is divided into a dehumidification section through which air to be dehumidified passes and a regeneration section through which regeneration air heated to a high temperature (200 to 250 ° C.) by the regeneration heater passes. The portion constituting the regeneration air circuit is a regeneration unit, and the rotation of the dehumidification rotor changes the dehumidification unit into a regeneration unit, and the regeneration unit sequentially changes into a dehumidification unit.

[0006]

In the prior art as described above, a water storage tank is installed in a case, and the dew water in the condenser is guided to the water storage tank. This water tank has a weight switch, and when the water tank exceeds the specified water level,
A weight switch as a safety device turns off a power switch, and the dehumidifier is stopped.

[0007] The use of such a water storage tank requires a water storage tank and a weight switch, and when the water storage tank is removed, water in the tank spills and contaminates surrounding equipment. And In addition, the function of stopping the operation when the water storage tank is removed is required, and the cost of the safety device is increased. From the viewpoint of the user, there is an annoyance that the water in the full water storage tank is carried out to the outside of the room.

Therefore, an object of the present invention is to solve the above-mentioned disadvantages of the prior art.

[0009]

In order to solve the above-mentioned problems, the present invention employs a means for directly bringing a drain port of a heat exchanger out of a housing. The adoption of this means
It is possible to discharge dew water directly to the outside of a building such as a house with a hose or the like outside the room.

According to the present invention, there are provided a circulation fan for sucking air to be dehumidified, a heat exchanger for passing suction air, an adsorption rotor for dehumidifying at least a part of suction air passing through the heat exchanger, and a heat exchanger. A dehumidifier that has a regeneration air circulation circuit that passes through the inside and the regeneration section of the adsorption rotor, a fan and a regeneration heater disposed in the regeneration air circulation circuit, and that condensed water in the heat exchanger is directly drained out of the heat exchanger. A dryer is provided.

The dehumidifier / dryer of the present invention can be used as a portable dehumidifier / dryer in ordinary households, and as a stationary type in ski resorts and dormitories. It can be used anywhere regardless of the location of the bathroom drain and laundry drain.

The drain port of the heat exchanger is communicated with the inclined bottom surface of the heat exchanger, so that dew water can be completely drained without storing dew water in the heat exchanger. Preferably, the blown-out dehumidified air is heat-exchanged with the regenerative heater case to be high-temperature dry air. This allows early drying of wet clothing in large quantities.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described with reference to FIG. A circulation fan 2, a heat exchanger 3, an adsorption rotor 4, and a regenerative heater case 5 are sequentially arranged in a case, that is, a housing 1 as an outer box of the dehumidifying dryer. The circulating fan 2 distributes a duct 2-1 and room temperature and humid air (eg, air from a bathroom, clothing, or a ski drying room) as dehumidified air in the duct 2-1. The fan is provided with a fan for sucking more air, and the sucked room-temperature and humid air passes through the heat exchanger 3 through the duct to absorb heat, raise the temperature, and travel toward the suction rotor 4. The outlet of the duct 2-1 is positioned so as to be opened at the center or at one side of the heat exchanger 3 (a plurality of openings may be provided), so that a small space is left between the outlet and the front of the heat exchanger 3. To

As shown in FIG. 2, the heat exchanger 3 has synthetic resin sheets 6 and 7 opposed to each other and a space 8 formed therein. A plurality of independent passages 9 for passing the normal temperature and high humidity air are formed. The passage 9 is formed by joining a partition 10 around an opening provided in one sheet 6 to the other sheet 7. This partition 10 defines in the space 8 a circulation path 11 for some regeneration air.

The space 8 is formed between the suction rotor 4 and the suction rotor 4 through an outlet port 13 which is diagonally opposite to the suction port.
And it communicates with the regeneration heater case 5. The heat exchanger 3
It is fixed to the inner wall of the housing 1 using mounting pieces 14 and 15 so that a slight gap is left from the inner wall. The heat exchanger 3 has a drain port 16 for draining dew condensation water in the space 8 at its lower part. Lower surface 1 with inclined drain port 16
Opening at the lowermost end of 7 'to enhance drainage efficiency.

The suction rotor 4 is a corrugated cardboard sheet which is rubbed with silica gel or zeolite and coated with a hygroscopic agent on the surface thereof, and has a configuration in which this sheet is spirally wound. The suction rotor 4 is rotated by a motor (not shown). A regeneration section (portion through which high-temperature regeneration air passes) 17 of the adsorption rotor 4 is connected to the suction port 12, and the regeneration air is sent to the inside 8 of the heat exchanger 3 through the regeneration section 17.

The regeneration section 17 of the suction rotor 4 faces the outlet of the regeneration heater case 5. The inlet of the regenerative heater case 5 is connected to the outlet port 13 of the heat exchanger 3. In the regeneration heater case 5, a regeneration heater 18 and a regeneration fan 19 are incorporated. The regeneration fan 19 sucks regeneration air from the heat exchanger 3, raises the regeneration air to a high temperature (200 to 250 ° C.) by the regeneration heater 18, and regenerates the regeneration unit 12 of the adsorption rotor 4.
It works to send to. The high-temperature regenerated air absorbs the moisture in the regenerating section 17 and after drying the dehumidifier, enters the heat exchanger 3 and
Here, it exchanges heat with normal temperature and humid air, dew condensation reduces humidity,
It returns to the inside of the regeneration heater case 5. That is, the regeneration air circulates in the regeneration air circuit.

The air to be dehumidified which has passed through the dehumidifying section of the suction rotor 4 is lowered in humidity, and is directed to the outlet of the housing 1. The high-temperature portion of the regenerative heater case 5 for accommodating the regenerative heater 18 is located in this air path. For this reason, the air that has passed through the dehumidifying section is heated by the high-temperature portion of the regenerative heater case 5 and becomes high-temperature dry air, which is blown out of the housing 1. The portion of the dehumidified air that has passed through the heat exchanger 3 and does not pass through the dehumidifying portion of the adsorption rotor 4 is heated by the high-temperature portion of the regeneration heater case 5 and joins with the air that has passed through the dehumidifying portion.

Next, an example of dehumidification will be described in which a dehumidifying dryer in which the capacity of the stainless steel housing 1 is 840 cm ² and the output of the regenerating heater 18 is 1200 W is placed in a room where wet clothes are hung. The room temperature 28 ° C., humidity 73% room temperature, humid air was sucked by the circulation fan 2 and passed through the heat exchanger 3 to exchange heat with the regenerated air. As a result, the humidity of the air dropped to 50% and the temperature rose to 34 ° C. Air passing through the dehumidifying section of the suction rotor 4 has a temperature of 37 ° C. and a humidity of 43%.
However, the air merges with the air that has not passed through the dehumidifying section and exchanges heat with the high-temperature portion of the regenerative heater case 5 to reach a temperature of 45 ° C.
The air was blown out of the housing 1 as high-temperature dry air at 26 ° C. and a humidity of 26%. In this example, the air temperature at the suction port is 28
Temperature rises from 45 ° C to 45 ° C at outlet at 73% relative humidity
To 26%.

In a comparative example in which the same dehumidifying dryer does not exchange heat between the high temperature portion of the regeneration heater case and the air passing through the dehumidifying portion of the adsorption rotor, the air temperature at the outlet is 38.
° C and humidity 40%. This result also shows that the heat exchange between the high-temperature portion of the regenerative heater case and the air before blowing is effective for producing high-temperature dry air. The blowing of such high-temperature dry air is effective to accelerate drying of wet clothes.

Next, the drainage of the heat exchanger 3 will be described.
Although the drainage port 16 of the heat exchanger 3 is directed sideways in the example of FIG. 2, it may be directed downward. The drain port 16 extends out of the housing 1 and
Is combined with The hose 20 is directed to a drain in a bathroom or a laundry, a drain in a sink of a drying room for wet clothes or skis, etc., and condensed water in the heat exchanger 3 is directly discharged to the drain through the hose 20. Let it flow. This eliminates the need for installing a tank and mounting a safety switch in the housing 1, and enables long-term operation of the dehumidifying dryer all day and night. This long-term operation is most suitable for drying children's clothing during the rainy season, for example, and is welcomed by ordinary households.

Further, by using the hose 20, the dehumidifying dryer of the present invention can be used as a portable type for general households or as a stationary type for clothes drying rooms such as ski hotels.
The length of the hose 20 can be set anywhere in the room by selecting the length of the hose 20. Even in a room without a drain port, it is only necessary to drain water to the outside, and the convenience in use is high.

[Brief description of the drawings]

FIG. 1 is a perspective view of an example of a dehumidifying dryer according to the present invention.

FIG. 2 is a partially broken perspective view showing an example of a heat exchanger.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Housing 2 Circulation fan 3 Heat exchanger 4 Adsorption rotor 5 Regeneration heater case 18 Regeneration heater 19 Regeneration fan

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Hitoshi Tauchi 2-1-1 Asahi-cho, Kariya-shi, Aichi F-term in Aisin Seiki Co., Ltd. 3L053 BC01 4D052 CB00 DA02 DA06 DB03 FA08 HA01 HA03

Claims (3)

[Claims] 1. A circulation fan for sucking air to be dehumidified, a heat exchanger for passing the suction air, an adsorption rotor for dehumidifying at least a part of the suction air passing through the heat exchanger, an interior of the heat exchanger and an adsorption rotor A dehumidifying dryer having a regeneration air circulation circuit passing through the regeneration unit, a fan and a regeneration heater disposed in the regeneration air circulation circuit, and in which dew condensation water in the heat exchanger is directly drained out of the heat exchanger. 2. The dehumidifying dryer according to claim 1, wherein a regenerative heater case containing the regenerative heater is disposed in the dehumidified air passage to be blown out to increase the temperature of the air to be blown out. 3. The dehumidifying dryer according to claim 1, wherein a drain port of the heat exchanger communicates with an inclined bottom surface inside the heat exchanger.