JPH0549900B2 - - Google Patents

Description

[Detailed description of the invention] Industrial applications The present invention relates to improvements in total heat exchange ventilation systems.

Conventional configurations and their problems There are three types of conventional total heat exchangers: stationary transmission type, heat storage rotating type, and heat storage transmission type, but in order for each to function as a total heat exchange device, In addition to the total heat exchanger, two blower fans are required at the same time. Therefore, the device becomes large and expensive. 1st
The figure is an example of a schematic configuration diagram of a conventional air conditioning ventilation fan using such a total heat exchanger. In FIG. 1, numerals 1 and 2 are an air supply fan and an exhaust fan, respectively. 3 is a plate-type total heat exchanger, 4 is a fan motor, 5 is a separator that separates both supply and exhaust air flows, 6 is the rotating shaft of the fan, 7 is the casing of the ventilation fan, 8 is the wall surface, and 9 is the front louver. . The motor 4 drives the air supply fan 1 and the exhaust fan 2.
is rotated. The airflow from the air supply fan 1 passes through the total heat exchanger 3 and is exhausted to the outside by the exhaust fan 2.

OBJECTS OF THE INVENTION The present invention eliminates the drawbacks of the prior art described above and provides a compact and inexpensive total heat exchange ventilation system.

Structure of the Invention The total heat exchange ventilation device of the present invention has a plurality of peaks and grooves extending radially outward from the rotation center side and arranged alternately in the circumferential direction, and on both sides thereof, on one side side. A disc-shaped impeller consisting of a moisture-permeable or moisture-impermeable wave-shaped partition plate having peaks and grooves that become grooves and peaks on the other side, respectively, and a central hollow part of the disc-shaped impeller. A penetrating cylindrical counterflow total heat exchanger is provided, the end surface of the cylindrical counterflow total heat exchanger is located on a different surface side of the disc-shaped impeller, and an intake port, an exhaust port, a moisture permeable partition plate disposed between the intake port and the exhaust port, the intake port being located at each end face of the cylindrical counterflow total heat exchanger, and the exhaust port corresponding to the intake port The ports are each provided on a cylindrical side surface of the cylindrical counterflow total heat exchanger located on the opposite side from the position of the corresponding intake port with the disc-shaped impeller as a boundary,
Of the cylindrical counterflow total heat exchanger and the discoidal impeller, at least the discoidal impeller has a rotating configuration, and the different airflows entering from the respective intake ports are connected to the cylindrical counterflow without directly contacting each other. After being subjected to total heat exchange in the total heat exchanger and passing through the cylindrical counterflow total heat exchanger, it is guided to different surfaces of the disc-shaped impeller, and further passed through the wave-shaped partition plate of the disc-shaped impeller. It is characterized by heat exchange.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described based on the drawings. Fig. 2 is a schematic perspective view of an impeller constituting a double-blade blower type total heat exchanger used in an embodiment of the present invention, and Fig. 3 is a schematic external appearance of a cylindrical counterflow total heat exchanger. FIG. 4 is a partially cutaway perspective view of a total heat exchange ventilation system according to an embodiment of the present invention, and shows a structure in which a cylindrical counterflow total heat exchanger 13 is fitted and integrated into the inner circle side of an impeller 10. Both rotate around the same axis of rotation. FIG. 5 is a schematic diagram of this configuration. In the figure, reference numeral 19 denotes a wave-shaped blade, which is held between the counterflow total heat exchanger 13 and the outer circumferential plate 20 and has a plurality of grooves extending radially outward from the rotation center side.
The material of this blade 19 is 0.2 mm thick kraft paper impregnated with LiCl and dried, and the total number of blades is 100.
The height of each blade is 50mm. The outer diameter of the impeller 10 is φ300 mm. It mainly consists of a counterflow total heat exchanger 13, blades 19, and an outer peripheral plate 20. The outer peripheral plate 20 is the counterflow total heat exchanger 1
In addition to holding the blade 19 portion between the impeller 10 and the impeller 10, it also has the role of separating two different air currents on both sides of the impeller 10. The material of the partition plate of the counterflow total heat exchanger 13 is the same thickness that has been impregnated with LiCl and dried.
Made of 0.2mm kraft paper. 14 is a casing surrounding the impeller 10. As in the case of a normal Sirotskov fan or a turbo fan, it has an airflow inlet 15 in the center and an airflow outlet 16 in a part of its outer circumferential direction. Reference numeral 11 denotes a parator (partition plate) which is a part of the casing 14 and, together with the outer circumferential plate 20, serves to prevent mixing between the two air streams on both sides of the impeller 10. In the case of the present invention, the suction port and the discharge port of the casing regarding the same airflow are located on opposite sides of the separator 11. This is because there is a counterflow total heat exchanger 13 in the center. Although metal is used as the material for the casing 14 and the separator 11 in this embodiment, any material may be used as long as it is strong and easy to process.

Reference numeral 12 denotes a rotating shaft common to the double-blade blowing total heat exchanger, that is, the impeller 10 and the cylindrical counterflow total heat exchanger 1. In principle, the total heat exchanger 13 may not rotate, but only the impeller 10 may rotate. Shaded areas 17 and 18 in Figure 2
are an outer support plate and an inner support plate that support the blades 19, respectively, but are also blind plates for airtightly separating two different air currents flowing on both sides of the impeller 10. In addition, these outer peripheral plates 2
0. Although resin is used as the material for the outer support plate 17 and the inner support plate 18 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 10 causes different air currents to flow in the grooves 21 and 22 on both sides thereof. A and B in FIG. 4 show the flows of both air currents, respectively. Both air flows sucked into the casing 14 from the respective suction ports in the center of the casing 14 enter the cylindrical counterflow total heat exchanger 13 from both sides in the rotational axis direction, and after exchanging total heat with each other, After exiting from the outer periphery of the counterflow total heat exchanger 13 and exchanging temperature and humidity with each other through the moisture permeable blades 19 of the impeller 10, the air flows from the respective discharge ports in the outer periphery of the casing 14 to the casing 8. Expelled outside.

In addition, when the airflow is 2m ² /mm using airflow at 33℃ and 60% relative humidity and airflow at 26℃ and 50% relative humidity for both of the above airflows, the total heat with ventilation function of this example The actual value of efficiency obtained using the exchanger is
The sensible heat exchange efficiency was 60% and the total heat exchange efficiency was 30%.

FIG. 6 shows a perspective view of another embodiment of the impeller. This is an example of a corrugated partition plate in which a plurality of groove portions are located linearly and radially from the rotation center side.

FIG. 7 is an embodiment of the present invention, and is a schematic diagram of a total heat exchange ventilation system in which the total heat exchanger shown in FIG. 4 is used.

When the motor 23 rotates, the impeller 10 rotates through the motor 12 and the counterflow total heat exchanger 13, and air C from the outdoor side is taken in and enters one end of the counterflow total heat exchanger 13. At the same time, indoor air D is taken in from the other end of the counterflow total heat exchanger 13, and total heat is exchanged between the airflows from inside and outside the room in the counterflow. Thereafter, the air flows C and D exiting the counterflow total heat exchanger 13 exchange total heat again via the impeller 10. In addition, 24 is a front louver, 11 is a separator which separates both supply and exhaust airflow, and 25 is a casing of a ventilation fan in contact with a wall 26.

In this case, since the conventional air supply fan 1, exhaust fan 2, and total heat exchanger 3 are integrated, the device is small, simple, and inexpensive.

In the above embodiment, the corrugated plate of the impeller 10 and the partition plate of the counterflow total heat exchanger 13 are both moisture permeable, but since most of the total heat exchange is borne by the counterflow total heat exchanger 13, the impeller The corrugated sheet No. 10 can exchange total heat even if it is not moisture permeable.

Effects of the Invention As described above, the total heat exchange ventilation device of the present invention has the following features:
There is no need to provide a separate blower, and since this alone functions as both a blower and a total heat exchanger, using this will make the device smaller, simpler, and cheaper.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram of a conventional air conditioning ventilation fan using a total heat exchanger, FIG. 3 is a schematic external view of a cylindrical counterflow total heat exchanger that is the same component, FIG. 4 is a partially cutaway perspective view of a heat exchanger of a total heat exchange ventilation system according to an embodiment of the present invention, and FIG. 6 is a perspective view of another embodiment of the impeller, and FIG. 7 is a schematic diagram of a total heat exchange ventilation system according to an embodiment of the present invention. 10... Impeller, 12... Rotating shaft, 13...
Counterflow total heat exchanger, 15...suction port, 16...discharge port.

Claims (1)

[Scope of Claims] 1. A plurality of ridges and grooves extending radially outward from the rotation center side are arranged alternately in the circumferential direction, and on both sides of the ridges and grooves, one side has the ridges and grooves, On the other side, a disc-shaped impeller consisting of a moisture-permeable or moisture-impermeable wave-shaped partition plate each having a groove and a ridge shape;
The cylindrical counterflow total heat exchanger is provided with a cylindrical counterflow total heat exchanger penetrating the central hollow part of the disc-shaped impeller, and the end surface of the cylindrical counterflow total heat exchanger is located on a different side of the disc-shaped impeller. and an air inlet, an air outlet, and a moisture-permeable partition plate disposed between the air inlet and the air outlet, the air inlet being located at each end surface of the cylindrical counterflow total heat exchanger. The exhaust ports corresponding to the intake ports are respectively provided on a cylindrical side surface of the cylindrical counterflow total heat exchanger located on the opposite side from the position of the corresponding intake port with the disc-shaped impeller as a boundary. The cylindrical counterflow total heat exchanger and the disc-shaped impeller have a configuration in which at least the disc-shaped impeller rotates, and different air flows entering from the respective intake ports flow through the cylindrical shape without directly contacting each other. After the total heat is exchanged in the counterflow total heat exchanger and passes through the cylindrical counterflow total heat exchanger, it is guided to different surfaces of the disc-shaped impeller and passed through the wave-shaped partition plate of the disc-shaped impeller. A total heat exchange ventilation system characterized in that heat is further exchanged through the air. 2. The total heat exchange ventilation system according to claim 1, wherein the disc-shaped impeller and the cylindrical counterflow total heat exchanger rotate on the same rotation axis. 3. The total heat exchange ventilation system according to claim 1, wherein the cylindrical counterflow total heat exchanger does not rotate, and only the disc-shaped impeller rotates.