JPH033158B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a total heat exchanger used in an air conditioning ventilation fan, a total heat exchange device, etc.

Conventional configurations and their problems There are three types of conventional total heat exchangers: static transmission type, heat storage rotating type, and heat storage transmission type. In addition to the total heat exchanger, two blower fans are required at the same time. Therefore, the device becomes large and expensive.
Another drawback is that a fan with high static pressure is required due to pressure loss in the heat exchanger.

FIG. 5 is an example of a schematic configuration diagram of an air conditioning ventilation fan using a conventional total heat exchanger. In the figure, 22, 23
24 is a stationary transmission type total heat exchanger, 25 is a fan motor, 2 is a fan for air supply, and a fan for exhaust air, respectively.
6 is a partition plate that separates both the supply and exhaust air streams, 27 is the rotating shaft of the fan, 28 is the casing of the ventilation fan, 29
30 is a wall surface, and 30 is a front louver.

As is clear from the above configuration, conventionally, a dedicated air supply fan 22 and an exhaust fan 23
It has the following.

Purpose of the invention The present invention eliminates the above-mentioned conventional drawbacks,
The present invention aims to provide a total heat exchanger that realizes a small and inexpensive total heat exchange device.

Structure of the Invention The present invention has a plurality of ridges and grooves extending radially outward from the rotation center side and are arranged alternately in the circumferential direction, and on both sides thereof, the ridges and grooves on one side, The other side consists of a disc-shaped impeller consisting of a moisture-permeable wave-shaped partition plate with grooves and peaks, respectively, and as this impeller rotates around its rotation axis, both sides of the impeller By creating two different air flows in the groove portion of the surface and exchanging temperature and humidity between the two air flows through the partition plate of the impeller, conventional blowers and heat exchangers This function can be performed independently, contributing to the downsizing and stabilization of the device.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described based on the drawings. Fig. 1a is a partially cutaway perspective view of a blower type heat exchanger according to an embodiment of the present invention, Fig. 1b is a schematic configuration diagram, and Fig. 2 is an impeller used in this. ) is a perspective view of.

In the figure, reference numeral 1 indicates a wave-shaped blade, which has a plurality of grooves extending radially outward from the rotation center side. It has an inner main plate 2 and an outer peripheral plate 3 on the side.
is held between. In this case, the inner main plate 2 and the blade 1 may be integrally formed.
The material of the blade 1 is the thickness that is dried after being impregnated with Licl.
Made of 0.1mm kraft paper, the number of feathers is 100 in total.
The height of each blade is 50mm. 4 is an impeller mainly composed of the inner main plate 2, (blade) 1, and outer peripheral plate 3, and in the example, the outer diameter is φ300.
configured in mm. In addition to holding the blade 1 portion between the outer peripheral plate 3 and the inner main plate 2, the outer peripheral plate 3 also has the role of separating two different air currents on both sides of the impeller 4. 5 is a casing surrounding the impeller 4. Airflow inlet 6 in the center, as in the case of normal Shirotsuko fans and turbo fans.
and a discharge port 7 for a part of the air flow in the outer circumferential direction. A separator 8 is provided integrally with the casing 5, and serves, together with the outer peripheral plate 3, to prevent mixing between the two air streams on both sides of the impeller 4. Although metal is used as the material for the casing 5 and the separator 8 in this embodiment, any material may be used as long as it is strong and easy to process. 9 is a boss provided on the inner main plate 2 to fix the impeller 4 to the rotating shaft 10. Reference numerals 11 and 12 denote an outer support plate and an inner support plate that support the blade 1, respectively, and cover the inner side and outer peripheral surface of the groove of the blade 1, and airtightly separate two different air currents flowing on both sides of the impeller 4. ing. In the figure, only the outer support plate 11 located on the front side is shown with diagonal lines to make its presence clear. In addition, these inner main plate 2, outer peripheral plate 3, outer support plate 1
1. Although resin is used as the material for the inner support plate 12 in this embodiment, any strong material such as metal may be used.

In the total heat exchanger with air blowing function having the above structure, the rotation of the impeller 4 causes different air currents to flow in the grooves 13 and 14 on both sides thereof. Reference numerals 15 and 16 in FIG. 1a indicate the flows of both air currents, respectively. Both air flows sucked into the casing from the respective suction ports 6 in the center of the casing 5 exchange temperature and humidity with each other through the moisture-permeable blades 1 of the impeller 4, and then exit to the outer periphery of the casing 5. They are discharged from the respective discharge ports 7 to the outside of the casing.

In addition, when the airflow is 1 m ³ /min for both of the above airflows, one is at 33℃ and 60% relative humidity, and the other is at 26℃ and 50% relative humidity, the total heat with ventilation function of this example The actual measured efficiency values obtained using the exchanger were 40% for sensible heat exchange efficiency and 30% for total heat exchange efficiency.

Figures 3a and 3b show perspective views of other embodiments of the impeller.

Figure 3a shows the case of a corrugated partition plate in which a plurality of grooves are located radially in a straight line from the rotation center side, and Figure 3b shows the case of a wave-shaped partition plate made of a moisture-permeable material (thickness 0.5 mm).
It has a structure in which a hand plate 19 fixed to a fan shaft 18 and a plastic blade 21 having an airflow suction port 20 are joined to both sides of a heat-conducting and moisture-permeable flat plate 17 made of kraft paper. In this case, it is desirable that the material of the main plate 19 has good heat conductivity.

FIG. 4 shows a schematic configuration of an air conditioning ventilation fan using the total heat exchanger of the present invention, and in the figure, numeral 31 is the total heat exchanger with an air blowing function of the present invention. As is clear from the figure, in the air conditioning ventilation fan using the total heat exchanger 31 with air blowing function of the present invention, the conventional air supply fan 22, exhaust fan 23, and total heat exchanger 24 are functionally and structurally integrated. As a result, the device is small, simple, and inexpensive.

Effects of the Invention As described above, the total heat exchanger of the present invention performs the functions of both an air blower and a total heat exchanger by itself, so if this is used, the device can be made smaller, simpler, and less expensive. Furthermore, unlike conventional total heat exchangers, the passage resistance is not large, so a total heat exchange device with less noise can be achieved.

[Brief explanation of drawings]

FIG. 1a is a partially cutaway perspective view of an embodiment of a total heat exchanger with a blower function of the present invention, FIG. 1b is a schematic configuration diagram of the same, and FIG. 2 is a perspective view of an impeller of an embodiment of the present invention. Figures 3a and 3b are perspective views of other embodiments of the impeller, and Figure 4 is a schematic configuration diagram of an embodiment of an air conditioning ventilation fan using the total heat exchanger with ventilation function of the present invention.
FIG. 5 is a schematic diagram of a conventional air conditioning ventilation fan using a total heat exchanger. 1... Blade (feather), 4... Impeller, 1
3,14...groove.

Claims (1)

[Claims] 1 A plurality of ridges and grooves extending radially outward from the center of rotation are arranged alternately in the circumferential direction, and on both sides, the ridges and grooves are on one side, and the grooves are on the other side. The component is a disc-shaped impeller consisting of a moisture-permeable wave-shaped partition plate shaped like a mountain.As this impeller rotates around its rotation axis, the upper grooves on both sides of the impeller A total heat exchanger that generates two different air streams and performs total heat exchange between the two air streams through a partition plate of the impeller.