JPS593308Y2 - Ventilation system with heat exchanger - Google Patents

Description

[Detailed explanation of the invention] This invention relates to the improvement of a ventilation system for a heat exchanger.
The purpose is to make it difficult for outdoor sounds to propagate indoors by utilizing the sound attenuating effect of the heat exchanger.

Hereinafter, one embodiment of this invention will be explained according to the drawings. In Fig. 1, 1 is the box body of the ventilation system, and the wall 2 is the mounting part.
It is installed through the.

Reference numerals 3, 4, and 5.6 indicate a pair of intake ports and outlet ports provided in the indoor and outdoor walls of this box body, and 7 indicates a set of air inlets and discharge ports provided inside the box body 1 from the outdoor wall to the indoor wall. 8 is an exhaust passage formed inside the box 1 from the indoor side wall to the outdoor side wall.

However, the indoor air introduced from the intake port 3 is passed through the exhaust passage 8 toward the discharge port 6, and the intake passage 7
In this case, outdoor air introduced from the intake port 5 is passed toward the discharge port 4.

9 and 10 are partition walls installed inside the box body 1 and intersect the intake passage 7 and the exhaust passage 8; 11 and 12 are blowers installed in the intake passage 7 and the exhaust passage 8; In this case, it is driven by a single motor M.

13 is a heat exchanger provided at the intersection of the intake passage 7 and the exhaust passage 8, and as shown in FIG. 2, it is a flat partition made of a material having heat conductivity and moisture permeability, for example, Japanese paper. Board 1
4 are stacked in a plurality of layers with a corrugated spacer plate 15 interposed therebetween and are integrally bonded together with an adhesive.

The spacer plates 15 are inserted with their corrugation forming directions alternately changed by 90 degrees.

Reference numeral 16 denotes an opening formed in the side wall surface of the box 1, which is in contact with one end surface of the heat exchanger 13, in the same shape as the end surface of the heat exchanger 13, and the one end surface of the heat exchanger 13 matches this opening. Through this opening, the heat exchanger 13 can be pulled out in the longitudinal direction using a handle (not shown) provided on one end surface thereof.

Further, as is clear from FIG. 1, the second heat exchanger 13 is arranged so that the overlapping direction of the partition plates 14 is in the same direction as the penetration direction A of the box 1, and the heat exchanger 13 is 13 and the blower 11, 12 are arranged side by side in a plane (imaginary plane) perpendicular to the overlapping direction of the partition plate 14, and the discharge port 4 and the intake port 3 on the indoor side are opened on the indoor side in the overlapping direction of the partition plate 14. In addition, the indoor discharge port 4 and the intake port 3, the heat exchanger 13, and the blower 11.12 are arranged so as to be shifted from each other when viewed in the direction in which the partition plates overlap, so that the outdoor air is From the heat exchanger 13, the air enters the blower 11 by bending nearly 90 degrees as shown by arrow B1, and from the blower 11 bends nearly 90 degrees as shown by arrow B2, reaching the indoor discharge port 4, and the indoor air is 90° from the indoor air intake port 3 as shown by arrow B3
It is bent close to the heat exchanger 13 and enters the heat exchanger 13.
Then bend the blower 1 by nearly 90 degrees as shown by arrow B4.
2.

The outdoor air from the outdoor air intake port 5 to the heat exchanger 13 is also bent by nearly 90 degrees as shown by arrow B5, and the indoor air from the blower 12 to the outdoor air outlet 6 is also bent by nearly 90 degrees as shown by arrow B6. ing.

Since the heat exchanger 13 has the configuration shown in Fig. 2, it has the effect of attenuating sound, and as mentioned above, the outdoor air from the outdoors to the indoors, and the indoor air from the indoors to the outdoors are directed by the arrows above. B5. B,,B2,B3. B4. Since it is bent many times by nearly 90 degrees as in B6, the sound is attenuated by the bending, and together with the sound attenuation effect inherent to the structure of the heat exchanger 13 itself, the sound is attenuated. is carried out more markedly.

Therefore, when a ventilation system with this structure is used in residences near airports, along Shinkansen lines, or along expressways, outdoor noise is difficult to propagate indoors, making a significant contribution to noise pollution.

Note that the blowers 11 and 12, the heat exchanger 13, and the intake ports 3 and 5
The arrangement of the discharge ports 4 and 6 can be arranged in various ways. For example, even if the heat exchanger 13 and the blowers 11 and 12 are arranged side by side in the stacking direction of the partition plates 14 of the heat exchanger 13, sound attenuation will not be achieved. Although it is not impossible to configure the ventilation system to work satisfactorily, the entire ventilation system becomes extremely long in the direction in which the partition plates 14 overlap, and on the other hand, a large part of the ventilation system protrudes outside, making it difficult for the outside wind to affect the ventilation system. The ventilation system may become curved, causing air leakage between the air passages within the system, resulting in a problem in which the desired ventilation and sound attenuation effects cannot be obtained.

Therefore, as in the embodiment shown in FIG. 1, the overlapping direction of the partition plates 14 and the box penetration direction A are the same direction, and the heat exchanger as seen from the indoor side, that is, as seen in the overlapping direction of the partition plates 14. 13, the center part 01 of the blower 11, and the air intake ports 3, 5.
central parts 04, 06 of the discharge ports 4, 6, and central parts 03, 0 of the discharge ports 4, 6.
5 and 5, thereby shortening the length of the device in the direction of penetrating the box 1, it is possible to connect the air passages to multiple locations such as B1 to B6 without causing the above-mentioned problems. By playing the new song at nearly 90 degrees, sufficient sound attenuation can be achieved.

As mentioned above, this idea uses a specific heat exchanger that has a good sound attenuation effect, and is configured so that the air passages are curved at nearly 90 degrees everywhere, which reduces sound. It is possible to obtain a ventilation device with a heat exchanger that provides good attenuation and is less likely to cause a decrease in the sound attenuation effect or a decrease in the ventilation effect due to the wind force of the outdoor wind or the like.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway perspective view of an embodiment of this invention, and Fig. 2 is a perspective view of its heat exchanger. 4 is an intake port and a discharge port on the indoor side, 5 and 6 are an intake port and a discharge port on the outdoor side, 7 is an intake passage, 8 is an exhaust passage, 11.12 is a blower, 14 is a partition plate, 15 is a spacing plate, 13 is a heat exchanger;
16 is an opening.

Claims (1)

[Scope of utility model registration request] An exhaust passage from the indoor side wall to the outdoor side wall and an intake passage from the outdoor side wall to the indoor side wall are formed in the box body that penetrates through the mounting part, and a blower for sucking outside air is connected to this intake passage, and a blower is connected to the exhaust passage. is equipped with a blower for discharging indoor air, and has multiple layers of heat-conductive partition plates interposed between them, creating a heat generating system in which adult outdoor air and discharged indoor air alternately pass between these layers. In the case where the exchanger is provided at the intersection of the intake passage and the exhaust passage, the heat exchanger is arranged so that the overlapping direction of the partition plates is in the same direction as the penetration direction of the box body, and the heat The exchanger and the blower are arranged side by side in a plane perpendicular to the overlapping direction of the partition plates, and the indoor side outlet and intake ports are opened on the indoor side in the partition plate overlapping direction, and the indoor side outlet and the air intake The opening, the heat exchanger, and the blower are arranged so as to be shifted from each other when viewed in the direction in which the partition plates overlap, so that outdoor air is bent and enters the heat exchanger and is bent from the heat exchanger. The indoor air is bent from the indoor air intake port, enters the heat exchanger, and is bent from the heat exchanger to reach the outdoor air outlet. Ventilation system with heat exchanger.