JPH07243668A - Air conditioner - Google Patents

Abstract

PURPOSE:To omit a humidifier of an air supply passage side necessary at the time of heating by installing a heater at this side of a moisture absorbing rotor at the time of heating, and operating a humidifier of a circulating air passage side. CONSTITUTION:A sensible heat exchanger 5 for heat exchanging the supply air with the circulating air is installed over an air supply passage la and a circulating air passage 1b. A heater 6 is installed between a fan 2 and a moisture absorbing rotor 4 at the passage 12. A regenerative heater 8 dries a moisture absorbing rotor 4 installed between the rotor 4 and the exchanger 5 at the passage 1b, and a humidifier 9 is installed between the exchanger 5 and a circulating air port 15. Thus, the heater 6 installed between the exchanger 5 and an air supply port 14 is transferred to this side of the rotor 4, and the rotor 4 is operated as a humidifying rotor at the time of heating, thereby using the humidifier 9 at the circulating air passage side as for both cooling and heating.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of an air conditioner capable of dehumidifying and cooling operation without using a refrigerant.

[0002]

2. Description of the Related Art Conventionally, as an air conditioner that can perform a cooling operation without using a refrigerant, a central portion of a casing 1 is divided by a partition wall 11 as shown in FIG. It is divided into passages 1b, and fans 2 and 3 are installed on the outside air introduction port 12 side of the air supply passage 1a and the exhaust port 13 side of the return air passage 1b, respectively, and moisture in the air is placed at the rear positions of the fans 2 and 3. The moisture absorption rotor 4 for adsorbing the partition wall 11
The sensible heat exchanger 5 for heat exchange between the supply air and the return air is installed in the rear portion of the moisture absorption rotor so as to be able to rotate across both passages. The heater 6 and the humidifier 7 are installed between the sensible heat exchanger 5 and the air supply port 14 in the air supply passage 1a, and the moisture absorption rotor 4 and the sensible heat are installed in the return air passage 1b. An air conditioner having a structure in which a regenerative heater 8 is installed between the exchangers 5 and a water vaporization type humidifier 9 is installed between the sensible heat exchanger 5 and the return air port 15 is known.

In this air conditioner, during cooling operation,
The low temperature and low humidity air is supplied to the air-conditioned area by the following actions. That is, when the fans 2 and 3 are driven to suck hot and humid outside air from the outside air inlet 12, moisture is adsorbed when the air passes through the moisture absorbing rotor 4 that is dried by the regeneration heater 8, and the moisture absorbing rotor is Although it is heated to a temperature higher than the outside temperature by receiving heat from the No. 4, it is sent to the sensible heat exchanger 5 as low-humidity air. This sensible heat exchanger has
Since the return air that has returned through the humidifier 9 and has been evaporated and cooled by the humidifier 9 is passing therethrough, the air is sensible heat-exchanged and cooled when passing through the sensible heat exchanger 5, and is passed through the duct from the air supply port 14. Sent to the area to be air conditioned.

During heating operation, hot and humid air is supplied to the air-conditioned area by the following actions. That is, fans 2, 3
When the low temperature and low humidity outside air is sucked from the outside air introduction port 12 by driving, the air is heated by the heat exchange with the return air returned from the air-conditioned area when passing through the sensible heat exchanger 5, and Is heated by the heater 6 and humidified by the humidifier 7 to become hot and humid air which is sent from the air supply port 14 to the air-conditioned area.

That is, during the cooling operation, the humidifiers 7 and 9 are required for lowering the temperature of the air and for humidification, but during the heating operation, the humidifier 7 is required only for the humidification, and the humidification is performed. It was not necessary to use the container 9 and the moisture absorption rotor 4.

When the only purpose is dehumidification during cooling operation,
The humidifier 7 on the air supply passage side is not necessary, but it was necessary during heating operation, so one humidifier was required for each air supply passage and return air passage in preparation for each operation, and the price of the air conditioner was high. There was a problem that was expensive.

[0007]

SUMMARY OF THE INVENTION It is an object of the present invention to eliminate the humidifier on the air supply passage side by operating a moisture absorption rotor which is not used during heating operation as a humidification rotor, thereby solving the above problems.

[0008]

DISCLOSURE OF THE INVENTION In an air conditioner according to the present invention, a central portion of a casing is divided by a partition into an air supply passage and a return air passage, and a fan for supplying and exhausting the air supply passage and the return air passage, respectively. A moisture absorption rotor that absorbs moisture in the air is installed so as to be able to rotate across both passages beyond the partition wall, and heat exchange between supply air and return air is performed at a rear position of the moisture absorption rotor. The sensible heat exchanger is installed so as to extend over the both passages beyond the partition wall, and a heater is installed in front of the moisture absorption rotor in the air supply passage, and the sensible heat exchanger and the sensible heat exchanger are provided in the return air passage. A regenerative heater and a water vaporization type humidifier on the return air side of the sensible heat exchanger are installed between them.

[0009]

In the heating operation, the humidifying rotor moistens the humidifying rotor, and low-humidity outside air heated by the heater becomes hot and humid air while passing through the humidifying rotor.

[0010]

Embodiments of an air conditioner according to the present invention will be specifically described with reference to the drawings. FIG. 1 is a schematic plan perspective view of the air conditioner of the present invention. Reference numeral 1 denotes a casing which constitutes an air conditioner, and a partition 11 is provided at a central portion of each of the air supply passages 1a.
And the return air passage 1b, and the outside air is the outside air intake 12
From the air supply port 1a to the conditioned air from the air supply port 14 and supplied to each air-conditioned region, and the return air from each air-conditioned region enters the return air passage 1b from the return air port 15. , Exhaust port 13
Is to be discharged from. Reference numerals 2 and 3 denote supply and exhaust fans installed in the respective passages, and 4 denotes a wheel-shaped moisture absorption rotor made of a material having high hygroscopicity and breathability, and the air supply passage 1a and the return air passage 1b. It is installed across the road, and can be rotated at all times during operation or by a signal from a humidity sensor. Reference numeral 5 is a sensible heat exchanger for exchanging heat between the supply air and the return air, which is a supply air passage 1a and a return air passage 1b.
It is installed across. Reference numeral 6 denotes a heater installed between the fan 2 and the moisture absorption rotor 4 in the air supply passage 1a, and 8 indicates the moisture absorption rotor 4 installed between the moisture absorption rotor 4 and the sensible heat exchanger 5 in the return air passage 1b. The regenerative heater 9 for drying is a humidifier installed between the sensible heat exchanger 5 and the return air port 16. The fans 2 and 3 may be installed on the side of the air supply port 14 and the side of the return air port 15, and their operation is exactly the same.

During the cooling operation, when the fans 2 and 3 are driven to suck hot and humid outside air from the outside air introduction port 12, the air has a moisture content when passing through the moisture absorption rotor 4 which is dried by the regeneration heater 8. Although it is adsorbed and receives heat from the moisture absorption rotor 4 and becomes higher than the outside air temperature, it becomes low humidity air and is sent to the sensible heat exchanger 5, and when passing through the sensible heat exchanger 5, heat exchange with the return air is performed. And is sent to each air-conditioned area from the air supply port 14 through the duct. At this time, the supply air, that is, the conditioned air has a temperature slightly higher than room temperature, but is in a low humidity state, and it is not necessary to adjust the humidity in each air-conditioned region according to each environment. The return air that has returned from each air-conditioned region enters the return air passage 1b through the return air port 15 and is deprived of the latent heat of vaporization when passing through the humidifier 9 to be cooled, thereby cooling the sensible heat exchanger 5. The exhaust port 1 evaporates the moisture that is heated when passing through the regeneration heater 8 and is adsorbed on the moisture absorption rotor 4.
Emitted from 3.

Since the regenerative heater 8 is not used during the heating operation, the return air humidified by the humidifier 9 is absorbed when passing through the moisture absorption rotor 4, and the moisture absorption rotor 4 is in a wet state. The low temperature and low humidity outside air sucked from the outside air intake 12 is
Since the high-temperature and low-humidity air passes through the heater 6, moisture is taken from the moisture-absorbing rotor 4 when passing through the moisture-absorbing rotor 4,
The hot and humid air passes through the sensible heat exchanger 5 and is sent from the air supply port 14 to each air-conditioned region.

The air conditioner of the present invention can be summarized as follows. The sensible heat exchanger 5 and the air supply port 14 of the air conditioner shown as a conventional example.
The heater 6 installed between and is moved to the front of the moisture absorption rotor 4 and the humidifier 7 is removed. However, the humidification rotor 4 acts as a humidification rotor during heating to humidify the return air passage side. The container 9 can also be used for cooling and heating.

[0014]

According to the air conditioner of the present invention, the heating heater is installed in front of the moisture absorbing rotor so that the moisture absorbing rotor acts as the humidifying rotor during the heating operation, and the humidifier on the return air passage side is operated. Since this is done, the humidifier on the side of the air supply passage, which was necessary during the heating operation, can be omitted, and the price of the air conditioner can be made low by this.

[Brief description of drawings]

FIG. 1 is a schematic plan perspective view of an air conditioner according to the present invention.

FIG. 2 is a schematic plan perspective view of a conventionally known air conditioner.

[Explanation of symbols]

 1 casing 1a air supply passage 1b return air passage 2 fan 3 fan 4 moisture absorption rotor 5 sensible heat exchanger 6 heating heater 8 regeneration heater 9 humidifier

Claims (1)

[Claims] 1. A central part of the casing is divided by a partition wall into an air supply passage and a return air passage, and a fan for supplying and exhausting air is installed in each of the air supply passage and the return air passage to adsorb moisture in the air. The moisture absorption rotor is installed so as to be able to rotate across both passages beyond the partition wall, and a sensible heat exchanger for exchanging heat between the supply air and the return air is installed at the rear position of the moisture absorption rotor over the partition wall. The heater is installed in front of the moisture absorption rotor in the air supply passage, and the regeneration heater is installed between the moisture absorption rotor and the sensible heat exchanger in the return air passage. An air conditioner that is equipped with a water vaporization type humidifier on the return air side of each unit.