JPS5995323A - Ventilating type cooling device - Google Patents

Abstract

PURPOSE:To obtain cool air of low absolute humidity by a method wherein laminating plates are laminated alternately, the first laminating plate is provided with moisture absorbing property and water permeating property, a layer, having no moisture absorbing property and no water permeating property, is interposed at a boundary between the first and second laminating plates, cooling water is supplied to the first laminating plate while suction air is introduced to the second laminating plate. CONSTITUTION:The first laminating plate 30 is constituted by laminating a chevron type spacing plate 31 onto two sheets of flat partitioning plates 32, 33 to form the air path 34. The spacing plate 31 and the partitioning plate 32 are constituted by a material having the moisture absorbing and water permeating properties while the partitioning plate 33 is constituted by a material having no such properties. The second laminating plate 35 is made by the same manner. The first and second laminating plates 30, 35 are intersected orthogonally and laminated, one corner thereof is dipped into water of a pan 6, the air path 34 of the first laminating plate 30 is utilized as the path of discharging air (a) while the air path 39 of the second laminating plate 35 is utilized as the path of the suction air (b). The discharging air (a) is cooled by the evaporation latent heat of water and heat exchange between the discharging air (a) and the suction air (b) is effected while the discharging air is being cooled, thus, the suction air (b) is cooled by sensitive heat only and the cool air, having no increase of the absolute humidity, may be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a ventilation type cooling device that utilizes the latent heat of vaporization of water.

Generally speaking, many cooling systems use a compressor and a refrigeration cycle, but in recent years, from the perspective of energy conservation, systems that utilize water evaporation have also become available. However, this type of cooling device employs a so-called direct humidification system, and therefore has the disadvantage that the cool air used is sticky air with high absolute humidity, which is accompanied by discomfort.

The present invention has been made to solve the problems of the conventional devices described above, and its purpose is to provide a cooling device that can provide cold air with low absolute humidity and no discomfort, and also has a ventilation function. It is about providing.

The present invention, as a configuration for achieving the object, includes a blower, a heat exchanger that exchanges heat between the air discharged from the indoor blade 1 to the outdoors and the borrowed air drawn into the room from the outdoors;
In this ventilation type cooling device having a cooling water supply device to the heat exchanger, the heat exchanger has first and second laminated plates alternately laminated, each having an air passage configured by laminating the plates. The ventilation paths of these laminates are isolated from each other, and the first laminate has hygroscopicity and moisture permeability, and the boundary between the first and second laminates has hygroscopicity. and a layer that does not have moisture permeability is interposed so that cooling water is supplied only to the first laminate, and the exhaust air is supplied to the ventilation path of the first laminate.
The first invention is characterized in that the intake air is guided to the second laminate, respectively; This invention is different from the second invention, characterized in that a structure is added to humidify the intake air that has passed through the heat exchanger.

Embodiments of the present invention will be described below with reference to the drawings.

1 and 2 show an embodiment of the first aspect of the present invention, in which A shows the outside and B shows the inside.

That is, the air conditioner according to the present invention is installed across a wall, window, or other member that separates indoor and outdoor areas, and 1 is an indoor air intake port, 2 is a motor, and 3 is driven by the motor 2. 4 is a heat exchanger, 5 is a water tank, 6 is a pan, 7 is an exhaust port that opens to the outdoor side, and air from the indoor side is passed through the suction port 1t to the blower 3 to the heat exchanger. 4 and then discharged outside from the exhaust lower. In addition, 8 is an outside air suction port on the outdoor side, 9 is a blower driven by the motor 2, and 10 is an outlet opening on the indoor side, and the air on the outdoor side is heated from the suction port 8 to the blower 9. The air is fed into the exchanger 4, where it undergoes heat exchange with the indoor air, and then supplied into the room through the outlet 10. Meanwhile, cooling water is supplied to the heat exchanger 4 from the water tank 5 through the pan 6, so that the air discharged from the room is humidified and cooled, the detailed configuration of which will be described later. 11 is a box for controlling the electric system including the motor 2, and 12 is a switch knob.

As shown in FIG. 3, the overall structure of the heat exchanger 4 includes a first laminated plate formed by laminating a corrugated spacer plate 21 and a flat partition plate 22, and a corrugated direction f of the spacer plate. :The main body is constructed by alternately laminating a large number of second laminated plates formed by laminating similarly corrugated spacer plates and flat partition plates arranged at 90° angles, and then the main body. A frame 23 as a strength member is attached to a part of the corner, and end plates 24 are attached to the upper and lower ends.

The structures of the first and second laminates are as shown in FIG. 4, and the first laminate 30 has a corrugated spacer plate 31 and two flat partition plates 32. 33 are laminated to form a ventilation path 34 between the spacer plate 31 and the partition plate 32. The spacer plate 31 and the partition plate 32 in contact with it are made of a material that is hygroscopic and moisture permeable.
The partition plate 33, which is separate from the above, is made of a material that is neither hygroscopic nor moisture permeable. On the other hand, the second laminated plate 35 has two flat partition plates 3 on a spacing plate 36 formed in a similar waveform.
7. 38 are laminated to form a ventilation path 39 between the spacer plate 36 and the partition plate 37. However, the spacer plate 36 and the partition plate 37 in contact with it are made of a material that is not hygroscopic and moisture permeable, and the partition plate 38 that is separate from the spacer plate 36 is made of a material that is hygroscopic and water permeable. .

The hygroscopic and moisture permeable materials used for the spacing plates and partition plates include paper, porous resin, porous metal, porous ceramic, etc., and are non-hygroscopic and moisture permeable. The material is resin, metal such as aluminum, stainless steel, copper, iron, ceramic, etc. In addition, although each of the partition plates of the first and second laminates 30.35 is composed of two flat plates, they may each be composed of one flat plate. In this case, the first laminate plate 30. The spacing plate 31 of the plate 30 is made of a hygroscopic and moisture permeable material, and the spacing plate 31 of the second laminated plate 35 is
The first and second laminated plates 30. Each of the partition plates 35 is made of a material that is neither hygroscopic nor moisture permeable.

The first and second laminates 30 configured in this way,
35 alternately and their spacing plates 31. The waveform directions of 36 are crossed at right angles and the required number of layers are laminated to form the heat exchanger body, and a frame 23 is attached to a part of the corner and end plates 24 are attached to the upper and lower ends of the heat exchanger body, as shown in Fig. 2. Heat exchanger 4 is completed.

In order to incorporate this heat exchanger 4 into a cooling device,
As shown in FIGS. 1 and 5, the first laminate board 30 is placed on its side and one corner is immersed in a pan 6 filled with water, and the ventilation passage 34 of the first laminate board 30 is opened indoors. The passage for exhaust air a from the outside to the outside and the ventilation passage 39 of the second laminated plate 35 are arranged so as to serve as the passage for intake air from the outside to the room.

With this arrangement, water is supplied from the pan 6 only to the first laminated plate 30, which is made of a hygroscopic and moisture-permeable material, so that the discharged air a passing from the room to the outdoors from the room is absorbed by the water. Cooled by latent heat of vaporization.

During this time, heat exchange takes place between the exhaust air a and the intake air from outside to the room, and the intake air is cooled. Since there is a layer of non-permeable partition plates, there is no exchange of moisture. In other words, since the intake air is cooled only by sensible heat, there is no increase in absolute humidity, and cold air that does not become stale can be obtained.

Next, the second aspect of the present invention will be explained. The second invention is characterized in that the intake air from outside that has been sensible-cooled by the heat exchanger of the first invention is further humidified by a humidifier, thereby humidifying and cooling the air to increase the cooling effect. be.

The embodiment will be described below with reference to FIGS. 6 and 7.

In the figure, 13 is a humidifier, which is located indoors from the heat exchanger 4.
It is installed on the downstream side of the intake air from outside, and after the intake air passes through the heat exchanger 4, it is configured to further pass through the humidifier 13'i. The lower end of the humidifier 13 is the water tank 5
It is placed so that it is immersed in a pan 6 filled with water supplied from the pan 6 so that the moisture is absorbed.

The humidifier 13 has a structure in which corrugated spacer plates and flat partition plates are alternately laminated, and the waveform directions of the spacer plates are oriented in the same direction.

One or both of the partition plates is made of a hygroscopic and moisture permeable material.

In this embodiment configured as described above, the exhaust air from the indoor side is sent to the heat exchanger 4 by the blower flame 3,
Here, the humidifier is cooled by the water sent from the water tank 5 through the pan 6, and then exhausted from the exhaust lower, which is exactly the same as in the first invention. On the other hand, the intake air that enters the heat exchanger 4 from the outdoor intake port 8 by the blower 9 is subjected to sensible heat cooling by heat exchange with the exhaust air in the heat exchanger 4, and during that time, the absolute humidity There is no increase in The intake air that has left the heat exchanger 4 enters the moisture absorber 13 located further downstream thereof, where it is humidified and cooled, increasing its cooling effect.

In this way, the intake air from outside the room is subjected to sensible heat cooling in the heat exchanger 4, and then further to the humidifier 13 located next.
Since the air is humidified and cooled by the air, it receives two degrees of cooling effect, which allows for a large temperature difference with the outside air, and the second humidification and cooling does not cause discomfort because the increase in absolute humidity is small. .

Note that the humidifier 13 is not limited to the above-mentioned example, and each humidifier such as a normal ultrasonic type, filter vaporization type, and suprem type may be used.

As described above, the present invention humidifies and cools exhaust air from indoors to outdoors in a total heat exchanger and exhausts it, and also converts intake air from outdoors to indoors into the heat exchanger using the cooled exhaust air. Since the air is cooled and then sent into the room, so-called ventilation cooling is possible, and since this intake air is not humidified in the heat exchanger, there is no increase in absolute humidity and good cold air is obtained without discomfort. Furthermore, by passing this cold air through a humidifier and cooling it twice, it is possible to obtain cold air with a large temperature difference from the outside air, and because the increase in absolute humidity due to humidification and cooling is small, this cold air does not cause discomfort. An excellent ventilation type cooling device can be obtained.

[Brief explanation of the drawing]

1 is a side sectional view of an embodiment of the first invention of the present invention; FIG. 2 is a front view of the same embodiment; FIG. 3 is a partially omitted perspective view of a heat exchanger in the above embodiment; The figure is an enlarged perspective view of the main part of the heat exchanger shown in Figure 3, Figure 5 is a perspective view showing the operation of the same heat exchanger during use, and Figure 6 is a side view of the embodiment of the second invention of the present invention. The sectional view and FIG. 7 are front views of the same embodiment. 3.9... Prower 4... Heat exchanger 5... Water tank 6... Pan 13... Humidifier 21...
- Spacing plate 22... Partition plate 30... First laminate plate 31... Spacing plate 32.33... Partition plate 34
...Air passage 35...Second laminate plate 36...Spacer plate 37.38...Partition plate 39...Air passage patent applicant Nippondenso Co., Ltd. Patent application agent Patent attorney Akira Aoki Attorney Kazuyuki Nishidate Patent Attorney Kyosuke Tsuchinakayama Patent Attorney Akira Yamaguchi Figure 1 Figure 3] Figure 4 3+D Figure 5 Figure 6

Claims (1)

[Claims] 1. A blower, a heat exchanger that exchanges heat between air discharged from the room to the outside and intake air from the outdoors to the room, and cooling to this heat exchanger. In the ventilation type cooling device having a water supply device, the heat exchanger includes first and second laminated plates that are alternately laminated and each having an air passage formed by laminating plates, and each air passage of these laminated plates. are separated from each other, and the first laminate has hygroscopicity and moisture permeability, and the boundary between the first and second laminates has no hygroscopicity and moisture permeability. cooling water is supplied only to the first laminated plate, and the exhaust air is supplied to the ventilation path of the first laminated plate, and the intake air is supplied to the second laminated plate. A ventilation type cooling device that is characterized by the fact that the air is distributed in various ways. 2 Ventilation that includes a blower, a heat exchanger that exchanges heat between air discharged from indoors to outdoors and intake air from outdoors to indoors, and a cooling water and supply device to this heat exchanger. In the type cooling device, the heat exchanger has first and second laminated plates that are alternately laminated, each having an air passage formed by laminating plates, and the air passages of these laminated plates are isolated from each other. In addition, the first laminate is made to have hygroscopicity and moisture permeability, and a layer that does not have hygroscopicity and moisture permeability is interposed at the boundary between the first and second laminated plates. Cooling water is supplied only to the first laminate, and the exhaust air is guided to the ventilation path of the first laminate, and the intake air is guided to the second laminate. The ventilated air conditioner is further characterized in that a humidifier is installed downstream of the air passage of the second laminated plate of the heat exchanger to humidify the intake air that has passed through the heat exchanger. Device.