JPS63172852A - Ventilation device - Google Patents

Abstract

PURPOSE:To provide a ventilation device capable of performing efficient heat exchanging operation by a method wherein the ventilation device is constituted by an outer unit composed of a first heat pipe and installed outside a building and an inner unit composed of a flow generating device generating an inverted air flow and a second heat pipe and installed within the building. CONSTITUTION:In summer season, fans 4A and 5A within blower devices 4 and 5 generate air flow indicated by an arrow A in each of air passages, cold air within a room is passed through an opening 2h of an inner unit 2, passed through a heat exchanger 10 of a heat pipe 6 so as to cool gasification coolant. Air of which temperature is increased is passed through a heat exchanger 11 of the heat pipe 7 within the unit 3, heated by the gasification coolant, passed through the blower device 5 and then discharged to the surrounding atmosphere. Gasification coolant within the heat pipe 6 cooled by indoor air is liquified and returned back to a heat sucking part. Surrounding atmosphere sucked by a fan 4A of the blower device 4 is passed through a heat exchanger 9 and further passed through the heat exchanger 8, cooled therein and flowed into the room. In winter season, the fans 4A and 5A are rotated in a reverse direction, the air flow into the room are heated in sequence while being passed through passages 3b and 2b, respectively.

Description

[Detailed description of the invention] The present invention relates to ventilation systems for buildings, etc., and particularly to ventilation systems for buildings, etc.

This invention relates to a ventilation system suitable for use in conditions where there is a large temperature difference between the inside and outside of a building.

Conventionally, even when buildings are air-conditioned, when ventilating, the air inside the building is released to the outside without heat exchange, and instead, the outside air taken in is used to match the temperature inside the building. It was heated or cooled to In this type of ventilation method.

This is extremely uneconomical as a large amount of hot or cold air inside the building is discarded to the outside world, and the power cost of the air conditioner is wasted for this ventilation.

In order to solve the problems with such ventilation methods,
A ventilation system has been proposed that introduces outside air into a building without wasting the hot or cold air during ventilation and releases it outside.It uses the heat of inside air to cool or heat the building for ventilation. ing.

However, in order to efficiently exchange heat between exhaust and intake air, this type of conventional ventilation system uses a large number of exhaust holes and intake holes alternately, for example, in order to increase the contact area between the exhaust pipe and intake pipe. They are arranged in a honeycomb shape, and therefore, when used for a long period of time or in a place where the air is heavily contaminated, the holes become clogged, making it difficult to ventilate efficiently and making maintenance difficult.

The present invention was made in view of the above-mentioned circumstances, and
The purpose of this invention is to provide a ventilation system that does not require heating or cooling the taken in outside air to bring it to indoor temperature, does not have to worry about clogging of exhaust or intake holes, and can efficiently exchange heat. It has been done.

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

1 to 7 show one embodiment of the ventilation system of the present invention. In the figures, 1 is the outer wall of a building, and inside this outer wall 1, that is, inside the building, The internal unit 2 shown is installed, while a third internal unit is installed on the exterior wall of the building.
The external unit 3 shown in the figure is installed, and the external unit 3 is equipped with a draft device or a blower! ! ! 4 and 5 are attached. As shown in FIGS. 4 and 5, the internal unit 2 and the external unit 3 have a pair of communication ports 1a and 1b provided through the outer wall 1, which communicate with the inside of the building and the outside world. It constitutes an air flow path (directions A and B of air flow in each flow path are shown as an inverted U-shaped flow path and a U-shaped flow path, respectively), and the air blower 4 and 5 are installed at the outer ends of the respective air passages so as to generate air in direction A or B depending on the season in these passages.

The internal unit 2 and the external unit 3 have almost the same structure as shown in FIGS. 2 and 3, and each has internal partition walls 2c and 3c with good thermal conductivity.
It has a pair of passages 2a and 2b and a pair of passages 3a and 3b separated from each other by c and 3c, respectively.

Two windows 2e and 2f and 38 and 3f, which communicate with the communication ports 1a and 1b of the outer wall 1 of the building, are penetrated through the opposing wall surfaces of the internal unit 2 and the external unit 3, respectively. Further, the passage 2a in the internal unit 2 and the passage 3a in the external unit 3 have openings 2g and 3g facing downward, respectively, and the passage 2b in the internal unit 2 and the passage 3a in the external unit 3 have downward openings 2g and 3g, respectively. 3b has openings 2h and 3h that both open upward. Therefore, when the internal unit 2 and external unit 3 are installed facing each other inside and outside the outer wall 1 of the building as shown in FIG.
The passage 2a, the communication port 1a and the passage 3a form an inverted U-shaped first air flow path shown on the left side of FIG. 1, while the passage 2b, the communication port 1b and the passage 3b form the first air flow path shown on the right side of FIG. The downward opening 3g of the first passage 3a in which the U-shaped second air flow passage is formed communicates with the inside of the blower 4, and the passage 3
The upward opening 3h b communicates with the inside of the blower 5.

A heat vibro 7 is housed inside each of the internal unit 2 and the external unit 3 (only the heat vibro within the internal unit 2 is indicated by a chain double-dashed line in FIG. 1), and these heat pipes passages 2a and 2b and passage 3 through holes 2d and 3d provided through partition walls 2C and 3C of inner unit 2 and outer unit 3, respectively.
The first air flow path including the 0 passages 2a and 38 extending to the 0 passages 2a and 3b, respectively, has a respective heat vibro
A heat absorbing section is arranged, and heat exchangers 8 and 9 made of fins and pipes are formed in the heat absorbing section. Further, a heat radiating section of each heat pipe is arranged in the second air flow path including one passage 2b and 3b, and a heat exchanger 10.11 consisting of a pipe and a fin is formed in the heat radiating section.

Considering the summer season when the interior of the room is cooled, the fans 4A and 5A in the blowers 4 and 5 are rotated in the normal direction so as to generate airflow in the direction of arrow A in FIG. 1 in each air flow path. Therefore, the cold air in the room is sucked into the passage 2b through the opening 2h of the internal unit 2, and is first transferred to the heat exchanger 1 provided in the heat radiating part of the heat vibro in the internal unit 2.
The vaporized refrigerant in the heat pipe is cooled while passing through zero.

As a result, the heated air is transferred to the passage 2 inside the internal unit 2.
b, passes through the window 2f, and then enters the external unit 3 through the communication port 1b in the outer wall 1 of the building. (in the opposite direction as described below) is cooled and further heated. Then, while passing through the passage 3b, the airflow in the adjacent passage 3a is cooled and further heated through the partition wall 3c, and finally the heat exchanger 11 provided in the heat radiation part of the heat pipe 7 in the external unit 3 is heated. After passing through and being heated by the vaporized refrigerant in the heat pipe, it is discharged to the outside through the blower device 5. Therefore, the temperature of the indoor air when it is discharged to the outside world is almost the same as the outside temperature, and the cold energy it initially had is used to cool the vaporized refrigerant in the heat pipe and the intake air in the passages 2a and 3a. spent on cooling.

On the other hand, the vaporized refrigerant in the heat vibro cooled by the indoor air exiting from the room through the passages 2b and 3b is liquefied, flows down the heat vibro, and returns to the heat absorption section of the heat pipe. In addition, the outside air sucked into the passage 3a from the outside as shown by the arrow A by the fan 4A of the blower 4 first passes through the heat exchanger 9 in the passage 3a, while the liquefied refrigerant in the heat pipe 7 in the external unit 3 It heats up and evaporates, while at the same time cooling itself. The cooled outside air is passed through the passage 3a.
window 3e, communication port 1a of outer wall 1, and internal unit 2
It sequentially passes through the windows 2e, enters the passage 2a in the internal unit 2, further passes through the heat exchanger 8, and then flows into the room through the opening 2g. In this process, while passing through the passages 3a and 2a, it is cooled from the exhaust flow side via the partition walls 2C and 3c, and further cooled in the heat absorption part of the heat vibro in the internal unit 2 by passing through the heat exchanger 8. be done. As a result, the air sent into the room from the outside through the passages 3a and 2a is cooled to near room temperature when it enters the room, and therefore, according to the device of the present invention,
No large amount of air conditioning power is required to cool the outside air.

Next, thinking about winter, in winter.

The indoor air is hotter than the outside air, and the direction of air flow in the rain air channel is switched to the direction of arrow B in FIG.

That is, in winter, the fans 4 of the blowers 4 and 5
The rotation direction of A and 5A is reversed from that in summer, so the direction of air flow in the first air flow path (the inverted U-shaped flow path on the left side of FIG. 1) and the second air flow path is as follows. It is in the direction of arrow B.

As a result, the air discharged from the room to the outside world is sequentially cooled while passing through passages 2a and 3a, while the air drawn into the room from the outside world is sequentially heated while passing through passages 3b and 2b.

In the above embodiments, a so-called separate type device is shown as the device of the present invention, but it may also be of an integrated type structure such as a window type cooler. FIG. 8 shows an embodiment of an integrated system [12] in which the internal unit 2 and external unit 3 of FIG. 1 are integrally combined. (The structure of each part of this device 12 is exactly the same as the device of the embodiment shown in FIG. This is done by installing it in the opening provided. The blower or draft device 4.5, if installed, is done after the main device 12 has been installed in the building. (The operation of this device 12 is also exactly the same as the embodiment shown in FIG. 1, so the explanation will be omitted.) Note that in FIGS. 1 to 8, illustrations are omitted for clarity. , indoor opening 2 of internal unit 2
A removable filter is fitted into each of g and 2h, and the filters are removed during periodic cleaning to remove dust inside.

In addition, drain plugs (not shown) are provided at the bottoms of the first passages 2b and 3b so that the heat exchangers 8 to 11 can be washed with water, and for the same purpose, drain plugs (not shown) are provided in the housing of the blower device 4. A drain plug is provided. Therefore, when washing the heat exchangers 9 to 11 with water, connect the drain hoses to these drain plugs, and then sprinkle water on each of the heat exchangers 9 to 11 from above to wash off the dirt adhering to the surface of the heat exchangers. Can be done.

When using the blowers 4 and 5 as shown in Figures 1 and 3 as drafting devices, a shutter to prevent blowing is attached to the opening of each housing of each blower 4.5. It is desirable to keep it.

FIGS. 9 to 11 show an embodiment of the shutter.

In FIG. 9, 5B is a housing of the blower 5, and a shutter 14 is attached to the opening of the housing 5B via a bracket 13. The shutter 14 consists of a shutter main body 15 and a support device 16 that supports the shutter main body 15 as shown in FIG. As shown in FIG. 11, the shutter main body 15 has a lid 15A that closes the opening of the housing 5B, and a shaft 15B fixed to the upper edges of both ends of the lid 15A. On the other hand, the support device 16 has a cylindrical shape.

It is provided with a bearing portion 16A that supports the shaft 15B, and also includes a mainspring spring 16B that urges the shaft 15B in the rotational direction. The mainspring spring 16B is fixed at its inner end to the surface of the shaft 15B and at its outer end to the inner circumferential surface of the support device 16. is affiliated with. Therefore, the shutter body 15 is always connected to the blower housing 5.
The opening of B is maintained open.

However, on a windy day, as shown by the arrow in FIG.
When the force of A exceeds the sum of the torque generated by the mainspring spring 16B, the shutter main body 15 naturally closes the opening of the blower housing 5B as shown by the two-dot chain line in FIG. 9 due to the force of the wind.
As a result, strong winds are prevented from entering the room.

It should be noted that as the shutter 13, an electromagnet driven type, a motor driven type, a pneumatic driven type, etc. can be used instead of the above embodiment; In this case, a wind and rain detector may be installed and the shutter may be closed in response to a detection signal from the wind and rain detector.

As described above, according to the present invention, the heat or cold inside the building can be effectively used to heat or cool the outside air taken in, without wasting it to the outside world.
Furthermore, it is possible to provide a ventilation system that does not require power to heat or cool the outside air taken in and is easy to maintain and manage without worrying about clogging of ventilation holes.

[Brief explanation of the drawing]

FIG. 1 is a perspective view for explaining one embodiment of the present invention;
2 is a perspective view of an internal unit forming one half of the device of FIG. 1, and FIG. 3 is a perspective view of an external unit forming the other half of the device of FIG. FIG. 4 is a sectional view taken along the line IV-IV in FIG. 1, FIG. 5 is a sectional view taken along the line V-■ in FIG. FIG. 7 is a cross-sectional view taken along the line VI-VI in the figure, and FIG. 7 is a cross-sectional view taken along the line ■-■ in FIG. FIG. 8 is a perspective view showing another embodiment of the present invention, FIG. 9 is a side sectional view of a shutter provided in the drafting device, and a sectional view taken along the line xt-xt in FIG. 10. FIG. 11 is a horizontal cross-sectional view of the opening of the current generator and the shutter, and is a perspective view of the main body of the shutter. 1... External wall (of the building), 2... Internal unit, 3.
...External unit, 2a, 3a, 2b
, 3 b-passage, 4゜5... Current flow device (air blower)
, 6, 7... Heat pipe, 12... Body shape device, 1
3...Shutter. Figure 2 Figure 4 Figure 6 Figure 5 Figure 7

Claims (1)

[Claims] first and second passages constituting a half of each of the first and second air passages communicating between the inside of the building and the outside world; a heat absorbing part disposed in the first passage and a heat radiating part; a first heat pipe disposed in the second passage; an external unit installed outside the building; an external unit connected to the external unit to flow air in opposite directions to the first and second passages; a third passage that communicates with the first passage and constitutes the other half of the first air passage; and a third passage that communicates with the second passage and constitutes the second half of the first air passage; The second heat pipe includes a fourth passage constituting the other half of the air flow path, and a second heat pipe having a heat absorption part disposed in the third passage and a heat radiation part disposed in the fourth passage. A ventilation system consisting of an internal unit installed inside a building;