JPS6038091Y2 - open air conditioner - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an open air conditioner that can switch between cooling and heating with a simple structure.

A conventional open type air conditioner has a structure as shown in FIG. In the open air conditioner main body (hereinafter referred to as the main body) formed into sections, the indoor air flow passage 4 and the regeneration air flow passage 6 and the indoor air flow passage 4 and the outdoor air flow passage 5 each have a structure that straddles both passages. A rotary latent heat exchanger 7 and a rotary sensible heat exchanger 8 are installed, and an indoor return air duct 9 for sucking indoor air is connected to the upper suction side of the indoor air flow path 4. ,
Further, an indoor air supply duct 10 for guiding cooled air into the room is connected to the lower discharge side of the indoor airflow passage 4.

Reference numeral 11 denotes an indoor blower installed at the upper part of the indoor air flow path 4, and the indoor air from the indoor return air duct 9 is passed through the rotary latent heat exchanger 7 and the rotary sensible heat exchanger 8 to the indoor humidifying means. It blows air to the 12 side.

Reference numeral 13 denotes an outdoor blower installed at the lower part of the outdoor airflow passage 5, which discharges the outdoor air added with moisture from the outdoor humidifying means 14 to the outside through the rotary sensible heat exchanger 8. .

Reference numeral 15 denotes a regeneration blower installed above the regeneration air flow path 6, which applies warm air from the heat source 16 to the rotary latent heat exchanger 7, heats it, and discharges it to the outside.

Reference numeral 17 designates a bypass pipe for communicating the indoor return air duct 9 and the regeneration duct 18 located before the heat source 16, and the connections at both ends are connected to A for cooling and to B for heating. It is equipped with an alternative damper device 19.19.

Reference numeral 20 is a bypass pipe for communicating the indoor air supply duct 10 and the regeneration duct 18 located after the heat source 16, and the connections at both ends are connected to A for cooling and to B for heating. It is provided with damper devices 21, 21 that change.

Note that 22 indicates a blower provided in the indoor air circulation duct 9.

Now, when performing air conditioning, the damper devices 19, 19 and 2
1.21 is turned to the A side as shown by the solid line and the equipment is operated, the indoor air from the indoor return air duct 9 passes through the rotary latent heat exchanger 7, where it is dehumidified and its temperature rises.

On the other hand, in the outdoor air flow path 5, air from the outdoors is humidified and cooled when passing through the outdoor humidifying means 14, and is discharged to the outside through the rotary sensible heat exchanger 8.

Therefore, the indoor air that has been dehumidified and heated by passing through the rotary latent heat exchanger 7 is pre-cooled when passing through the rotary sensible heat exchanger 8, and is further humidified and cooled by the indoor humidifying means 12. The air is supplied indoors through the indoor air supply duct 10.

Incidentally, when the hot air from the heat source 16 passes through the regeneration air flow passage 6, it is discharged to the outside of the heating regeneration chamber through the rotary latent heat exchanger 7.

Next, if you want to perform heating operation, the damper device 1
9, 19 and 21, 21 to the B side, blower 22
When only the heat source 16 is driven, the indoor air passes through the indoor return air duct 9 and the bypass pipe 17 and reaches the heat source 16.
Here, the heat is exchanged, the temperature reaches a high temperature, and the air is supplied into the room via the bypass pipe 20 and the indoor air supply duct 10.

The above is the configuration and operation of a conventional open air conditioner.
This type of device requires two bypass pipes 17.20 and four damper devices, which increases the number of parts and increases costs.
It is also long and complicated, resulting in high flow resistance and air leakage.

The present invention has been devised to eliminate the above-mentioned drawbacks and will be explained in detail below with reference to an embodiment shown in the drawings.

31 is an indoor air flow passage 3 with partition walls 32 and 33 inside.
4. An open air conditioner body (hereinafter referred to as the main body) which is divided into an outdoor air flow passage 35 and a regeneration air flow passage 36, and these indoor air flow passages 34, regeneration air flow passages 36, and indoor air flow passages 34. A rotary latent heat exchanger 37 and a rotary sensible heat exchanger 38 are installed in each of the outdoor air flow passages 35 and straddling both passages, and indoor air is supplied to the upper suction side of the indoor air flow passage 34. An indoor return air duct 39 for suction is connected, and an indoor air supply duct 40 is connected to the lower discharge side of the indoor air flow path 34 for guiding cooled air into the room.

Reference numeral 41 denotes an indoor blower installed above the indoor air flow path 34, and the indoor air from the indoor return air duct 39 is passed through the rotary latent heat exchanger 37 and the rotary sensible heat exchanger 38 to the indoor humidifying means. The air is blown to the 42 side.

Reference numeral 43 designates an outdoor blower installed at the bottom of the outdoor airflow passage 35, which discharges the indoor air added with moisture from the outdoor humidifying means 44 to the outside through the rotary sensible heat exchanger 38. .

45 is a regeneration blower installed at the upper part of the regeneration air flow path 36, and the hot air from the heat source 46 is transferred to the rotary latent heat exchanger 3.
7, which is then heated and regenerated and released to the outside.

47 is a bypass pipe for short-circuiting the indoor air return duct 39 and the indoor air supply duct 40;
7 is provided with another heat source 48 for heating, which is separate from the heat source 46 used for heating and regenerating the rotary latent heat exchanger 37.

Reference numeral 49.50 designates a damper device for switching between cooling and heating, which is provided at both end connections of the bypass pipe 47, and is turned to the A side during cooling to connect the indoor return air duct 39 and the indoor air supply duct 40 to the indoor air. It communicates with the circulation passage 34 side, and during heating, it is turned over to the B side and connects to the indoor air circulation duct 3.
9 and an indoor air supply duct 40 are communicated via a bypass pipe 47.

51 is an indoor air circulation duct or an indoor air supply duct 40
Indicates a blower installed on either side.

Here, the operation of the present invention will be explained.

If you want to perform air conditioning first, use the damper device 49.50
When you turn the switch to the A side and operate the device, the indoor air return duct
The indoor air passes through the rotary latent heat exchanger 37, where it is dehumidified and its temperature increases.

On the other hand, in the outdoor air flow path 35, air from the outdoors is humidified and cooled when passing through the outdoor humidifying means 44, and is discharged to the outside through the rotary sensible heat exchanger 38.

Therefore, the indoor air that has been dehumidified and heated by passing through the rotary latent heat exchanger 37 is pre-cooled when passing through the rotary sensible heat exchanger 38, and is further humidified and cooled by the indoor humidifying means 42. The air is supplied indoors through the indoor air supply duct 40.

Incidentally, when the hot air from the heat source 16 passes through the regeneration air flow path 36, it heats and regenerates the rotary latent heat exchanger 37 and is discharged to the outside.

Next, if you want to perform heating operation, the damper device 4
When 9.50 is switched to the B side and only the blower 51 and heat source 48 are driven, indoor air enters the bypass pipe 47 from the indoor return air duct 39, undergoes heat exchange with the heat source 48, and then becomes warm air and flows indoors. The air is discharged into the room from the air supply duct 40.

As described above, the present invention provides a heating heat source separate from the heat source for heating and regenerating the rotary latent heat exchanger.
The bypass pipe from the indoor air return duct to the indoor air supply duct can be designed to have the shortest distance, and damper devices for switching between cooling and heating can be installed at two locations at both ends of the bypass pipe. Therefore, the duct piping can be extremely simplified, the flow resistance can be reduced, and air leakage, which causes performance deterioration, can be reduced, which is a remarkable effect.

[Brief explanation of the drawing]

FIG. 1 is a schematic longitudinal sectional view of the structure of a conventional open air conditioner, and FIG. 2 is a schematic longitudinal sectional view of the structure of the open air conditioner of the present invention. 34...Indoor air flow passage, 35...Outdoor air flow passage, 36...Regeneration air flow passage, 37
... Rotating latent heat exchanger, 38 ... Rotating sensible heat exchanger, 39 ... Indoor return air duct, 4
0... Indoor air supply duct, 41... Indoor blower, 42... Indoor humidifying means, 43.
...Outdoor blower, 44...Outdoor humidifying means, 45...Regeneration blower, 46...
・Heat source, 47... Bypass pipe, 48...
・Heat source for heating, 49.50... damper device,
51...Blower.

Claims (1)

[Scope of utility model registration request] It has an indoor air flow passage, an outdoor air flow passage, and a regeneration air flow passage. A latent heat exchanger and a rotary sensible heat exchanger are installed, and a heat source for heating and regenerating the rotary latent heat exchanger is provided in the regeneration air flow path, and a rotary latent heat exchanger and a rotary latent heat exchanger in the indoor air flow path are provided. An indoor humidifying means for adding moisture to the indoor air that has passed through the rotary sensible heat exchanger; and an outdoor heating means for adding moisture to the outdoor air in the preceding stage that has passed through the rotary sensible heat exchanger in the outdoor air flow path. In an open air conditioner equipped with an indoor air conditioner, an indoor return air duct is connected to the suction side of the indoor air flow path, and an indoor air supply duct is connected to the discharge side of the indoor air flow passage, and these indoor return air ducts or indoor A blower is installed in at least one of the air supply ducts, and a bypass pipe is provided to short-circuit the indoor return air duct and the indoor air supply duct. In addition, another heating heat source separate from the heat source supplied to the An open air conditioner characterized by being equipped with a damper device for switching indoor air from the duct to the bypass pipe side cover or the indoor air flow path side.