JPH0449499Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention is installed in the partition plate between the supply air duct and the exhaust duct in air conditioning equipment, etc., and transfers heat between the supply air and the exhaust air. This article relates to a rotary heat exchanger that can be used in various applications.

[Problems that conventional technology and ideas try to solve]

This type of rotary heat exchanger, as shown in FIG.
When exhausting air from the adjacent ducts 1 and 3,
It is arranged on the partition plate 5 between the two. Bypass ducts 1a and 3a are attached to both ducts 1 and 3, and when the rotary heat exchanger 6 is not used, for example, when the air conditioner is not used during the heating season, the bypass ducts 1a and 3a are installed for the purpose of preventing contamination of the heat exchanger and pressure loss. , closes the damper 7 of the supply air duct 1 and closes the damper 7 of the bypass duct 1a.
At the same time, the damper 8 of the exhaust duct 3 is closed and the damper 8a of the bypass duct 3a is opened. Such a bypass therefore requires large space and corresponding investments.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a rotary heat exchanger that has a simple structure and can prevent contamination and pressure loss when not in use.

[Means and actions for solving problems]

In order to achieve this objective, the present invention has a thin heat exchanger body that is rotatably supported by a casing for the heat exchanger body at a transverse position for heat exchange operation, and is rotatable around a rotation axis along a partition plate. The heat exchanger is characterized in that a pivot mechanism is provided between the casing and the duct to allow the heat exchanger main body to rotate from a transverse position, which is an operating position, to a position along the partition plate, which is a non-use position.

In order to facilitate the switching operation between the operating position and the non-use position, it is conceivable to attach a drive mechanism to the pivot mechanism to rotate the heat exchanger main body by an operation outside the duct.

When the heat exchanger is used, the heat exchange surface, ie, the surface of the exchanger body, is positioned in a transverse position and rotated to recover exhaust heat to the supply air side or cool the supply air with exhaust cold heat. When a rotary heat exchanger is not used, when the rotary heat exchanger is rotated from the transverse position to the position along the partition plate using the pivot mechanism, the thin profile allows the supply air and exhaust air to move along the heat exchange surface without hitting it, reducing the pressure. No losses occur and the contamination is significantly reduced.

[Example of idea]

In Fig. 1, air supply duct 1 and exhaust duct 3
The rotary heat exchanger 1 according to the present invention is installed on the partition plate 5 between
0 is placed. As shown in FIG. 2, this heat exchanger includes a frame-shaped casing 11, seal parts 12 provided on both sides crossing the central part of the casing 11,
A heat exchanger main body 15 is supported by a rotating shaft 13 attached to the center of the seal, and has a disk-like outer shape and a honeycomb shape that is thinner than its diameter. A belt 17 is wound around the main body. It is composed of a motor 16 that is rotated by a motor 16. A shaft 11 is provided on both sides of the central part of the heat exchanger main body casing 11.
a and 11b are provided in a protruding manner and are supported by bearings 21 and 22 attached to the ducts 1 and 3, respectively.

The partition plate 5 is formed as a shield part 5a, 5b of the heat exchanger main body 15 on the side of the rotary heat exchanger 10 that is not in the rotation path at the unused position (solid line position in FIG. 1). In both ducts 1 and 3, stoppers 23 and 24 are provided at transverse positions perpendicular to the partition plate 5 of the rotary heat exchanger 10, that is, at the end positions of the rotation path.
are provided for each. By interposing a required amount of friction between the bearings 21, 22 and the shafts 11a, 11b, the rotary heat exchanger 10 is stably held at the set position. The shaft 11a can be driven by attaching a knob or handle directly, attaching a chain wheel and rotating it by a handle at an appropriate place via a chain, or attaching a gear and rotating it by operating an external switch using a motor. Attach a mechanism.

The operation of the rotary heat exchanger 10 configured as above is as follows.

When the rotary heat exchanger 10 is not in use, its center position is exactly along the partition plate 5 (the solid line position in FIG. 1). In this state, approximately half of the heat exchanger main body 15 on the air supply duct 1 side is covered by the shield part 5a, and the central part is covered by the seal part 12 adjacent to this part. On the other hand, the exhaust duct 3 side is similarly shielded by the shield part 5b and the seal part 12, and no heat exchange occurs between the two ducts 1 and 3. In addition, almost no pressure loss occurs during supply and exhaust.

In use, the rotary heat exchanger 10 is positioned at the stops 23 and 24 by rotating the shaft 11a in the direction of arrow A. In this state, when the heat exchanger main body 15 is rotated around the rotating shaft 13, a normal heat exchange action can be obtained. For example, the low-temperature exhaust gas from the exhaust duct 3 can be collected into the supply air on the supply air duct 1 side, or conversely, the supply air from the supply air duct 1 can be cooled with the cold air from the exhaust duct 3.

In addition, as the supporting mechanism shaft, it is also possible to attach a bearing to the casing for the heat exchanger body and a shaft to the duct side. Separate locking mechanisms can also be formed at both positions to hold the rotary heat exchanger in a set position. The present invention is applicable to any thin type rotary heat exchanger such as a disk or hollow cylinder type rotary heat exchanger or one equipped with a purge sector.

[Effect of idea]

As described above, according to the present invention, it is possible to realize a rotary heat exchanger that does not cause heat loss in the air supply or exhaust gas or dirt on the heat exchange surface when not in use, even without constructing a bypass. This is extremely advantageous in terms of equipment costs.

[Brief explanation of the drawing]

FIG. 1 is a schematic sectional view of a rotary heat exchanger according to an embodiment of the present invention in a used and unused state, FIG. 2 is a front view thereof, and FIG. 3 is a schematic configuration of a conventional rotary heat exchanger part. FIG. 1...Air supply duct, 3...Exhaust duct, 5...
Partition plate, 10... Rotary heat exchanger, 11... Casing, 11a, 11b... Shaft, 15... Heat exchanger body, 21, 22... Bearing.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A partition plate between adjacent supply air ducts and exhaust air ducts is installed across the sides of both ducts to exchange heat between the supply air and exhaust air. In the rotary heat exchanger, the thin heat exchanger body is rotatably supported by the heat exchanger body casing at the transverse position for heat exchange operation, and is rotatable about a rotation axis along the partition plate; A pivot mechanism is provided between the casing and the duct to allow the heat exchanger body to rotate from the transverse position, which is an operating position, to a position along the partition plate, which is a non-use position. rotary heat exchanger. (2) The rotary heat exchanger according to claim 1, wherein the shaft support mechanism is provided with a drive mechanism for rotating the heat exchanger body by an operation outside the duct.