JP2000257934A - Heat exchanging type ventilating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify a structure, facilitate maintenance inspection, reduce in size and improve heat exchanging efficiency by a method, wherein a rotary type heat storage body is rotated by imparting a heat storage body with a circumferential force by the spiral circumferential flow of gas sent out from propeller fans. SOLUTION: A rotary type heat storage body 1 rotates freely, while being supported by bearings 3a, 3b. The heat storage body 1 is formed of flow passages defined into small compartments by bulkheads so as to conduct gas to flow into an axial direction and so as not to mix two series (high-temperature series A and low-temperature series A') of gas by the partitioning guides 4, 4b. In this case, both ends of the heat storage body are opened to cause the gas by fans 5a, 5b to flow into the body 1 from one end and flow out of the body 1 through the other end. The flow of gas near the outer periphery of the heat storage body 1 among the flows of gas, sent out of the fans, flows directly into the heat storage body as shown by the arrow B, B' in a diagram and the balance of the flows of gas are collided against the partitioning guides 4a, 4b to flow into the heat storage body 1, after changing the flow direction thereof as shown by the arrow C, C'. As a result, the circumferential component of the spiral flow generates sufficient torque in the heat storage body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchange type ventilation system.

[0002]

2. Description of the Related Art A rotary heat exchanger that transfers heat by transferring heat of a high-temperature fluid to a rotating regenerator, rotating the regenerator, moving the regenerator to a flow path of a low-temperature fluid, and transferring heat to the low-temperature fluid. Although the exchange device is publicly known, in the conventional device, the heat storage body is rotated by a separate drive device such as a motor.

[0003]

In this case, a driving device such as a motor becomes expensive, including a reduction gear, and requires a large space, so that the entire device is complicated, large in size and expensive. There were drawbacks.

[0004]

The present invention does not require a separate driving device such as a motor for rotating the rotary heat storage element, and uses the power of the gas flow sent by the blower to store the heat storage element. It is designed to be rotated.

[0005]

The gas sent from the blower is passed along the axial direction of the rotary heat storage element for heat exchange, and at this time, a flow component is also generated in the circumferential direction of the rotary heat storage element, and the heat storage element is generated. The heat storage body is rotated by applying a circumferential force to the heat storage body.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the drawings showing embodiments.

FIG. 1 shows a cross-sectional structure of an embodiment according to the present invention. In FIG. 1, reference numeral 1 denotes a heat storage unit having a rotating shaft 2 which forms a flow path so that gas flows in an axial direction. The flow path is divided into small sections by partition walls, so that the two types of gas described below are not mixed and the contact area with the gas is increased. The rotating shaft 2 is supported by bearings 3a and 3b, and the heat storage body rotates freely. Both ends are open,
The fans 5a and 5b allow gas to flow in from one end and flow out from the other end, but the flow path is divided into two systems by the partitioning and guides 4a and 4b. To the other flow path system A '.

When a propeller fan is used for the blower, the gas sent from the fan is not a layered flow parallel to the axis but a spiral flow in the propeller fan. Therefore, when flowing into the heat storage body, the circumferential flow of the spiral flow applies a circumferential force to the partition wall to generate a rotational force in the heat storage body.

The flow path of the heat storage body 1 is divided into two systems by the partitioning and guides 4a and 4b, and the rotation center of the fan and the rotation center of the heat storage body are largely displaced. In the spiral flow of gas, the circumferential flow near the axis of the heat storage element and the circumferential flow near the outer circumference are opposite, so the rotational force applied to the heat storage element cancels out and the heat storage element is sufficient. Can not generate a large rotational force.

Therefore, in the present invention, as shown in FIGS. 1 and 2, of the flows sent from the fans 5a and 5b, the flow near the outer periphery of the heat storage directly flows into the heat storage as indicated by arrows B and B '. The remaining flow is applied to the partitioning / guides 4a and 4b, and the flow is changed as shown by arrows C and C 'before flowing into the heat storage body. As a result, the circumferential flow components of the spiral flow concentrate on the heat accumulator in the same direction to generate a sufficient rotational force.

When the high-temperature fluid and the low-temperature fluid flow in opposite directions, heat exchange efficiency is improved.
If the rotational directions of a and 5b are the same, the rotational forces acting on the heat storage element cancel each other out. Therefore, it is preferable to rotate the heat storage elements in directions opposite to the gas sending direction.

When the spiral flow of the propeller fan cannot be used due to its structure, or when a sirocco fan, a cross flow fan or the like is used, as shown in FIG. Flow in the circumferential direction to apply rotational force to the heat storage body.

Further, as shown in FIG. 4A, an airfoil section piece 9 is mounted integrally with the heat storage body. This airfoil section 9 is shown in FIG.
According to Bernoulli's theorem, a thrust (indicated by an arrow E) is generated in the same direction even when the direction of gas flow is opposite to D and D 'by the Bernoulli's theorem, thereby rotating the heat storage body in a certain direction. For this reason, it is possible to provide a counter-flow heat exchanger in which the gas flows of the two systems A and A 'flow in opposite directions.

In the case where the gas is sucked in from one opening of the heat storage unit by a fan and the gas is caused to flow in from the opening on the opposite side, arrows B, B ', C shown in FIG. , C ′ are in opposite directions, but by making the opening of the case on the inflow side asymmetrical as shown in FIG. 5, a force is applied to the heat storage body in a specific direction. It can be rotated in a certain direction.

As shown in FIG. 6 (a), the heat storage body is constructed by radially disposing a plate on a rotating shaft and surrounding the outer periphery.
As shown in (b), a tubular member can be bundled or a honeycomb material can be used.

The cross section perpendicular to the rotation axis of the heat storage body does not necessarily have to be circular, but may be a polygon such as a square or a hexagon.

[0017]

Since the present invention is configured as described above, the following significant effects can be obtained.

[0018] It is possible to provide a heat exchange type ventilator which does not require a separate rotation device of a rotary heat exchanger, has a simple structure, is easy to maintain and inspect, has a small heat exchange efficiency, and is inexpensive. It becomes possible.

[Brief description of the drawings]

FIG. 1 is a sectional view showing one embodiment of the present invention.

FIG. 2 is a simplified diagram showing a gas flow.

FIG. 3 is a sectional view of a main part of one embodiment.

FIG. 4 is an enlarged view of a heat storage body.

FIG. 5 is an enlarged view of a main part of one embodiment.

FIG. 6 is an enlarged view of a heat storage body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Heat storage body 2 Rotating shaft 3a, 3b Bearing 4a, 4b Partitioning and guide 5a, 5b Fan 6 Case 7 Fan 8 Deflection plate 9 Airfoil section piece

Claims (4)

[Claims] 1. Transferring heat of a high-temperature gas to a rotating heat storage element in a flow path thereof, rotating the heat storage element, moving the heat storage element to a low-temperature gas flow path, and transferring heat to the low-temperature gas. A rotary heat storage for heat exchange, and applying a circumferential force to the heat storage by the circumferential flow included in the spiral gas flow sent from the propeller fan. Heat exchange type ventilator characterized by rotating a heat storage body 2. A rotary heat storage element is characterized in that a flow of gas sent from a fan is caused to flow in a circumferential direction of the heat storage element by a deflecting plate, thereby applying a circumferential force to the heat storage element and rotating the heat storage element. The heat exchange type ventilator according to claim 1, wherein 3. A rotary heat storage element is applied with a flow of gas sent from a fan to an airfoil cross-section piece integrally attached to the heat storage element to generate thrust on the airfoil cross-section piece. The heat exchange type ventilator according to claim 1, wherein the heat exchanger is rotated. 4. A rotary heat storage device, wherein a gas is sucked in from one opening of the heat storage material by a fan so that the gas flows in from the opposite opening, and the inlet of the gas is made asymmetric. 2. The heat exchange type ventilator according to claim 1, wherein the heat storage body is rotated by applying a rotational force in a specific direction.