JPH0533859Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention is an in-ceiling system that sucks in outdoor air and blows it indoors through a built-in heat exchanger, and also sucks indoor air and exhausts it outside through the heat exchanger. Concerning a built-in heat exchange ventilation system.

[Prior art] A heat exchange ventilation system is a ventilation system that exchanges heat between supply air and exhaust air to prevent the indoor temperature atmosphere from changing significantly even during ventilation. It is equipped with two blowers and an air-to-air heat exchanger. In conventional ceiling-embedded ventilation systems of this type, in order to pass the air supply and exhaust flow through the heat exchanger, the inlet/outlet for air supply and the inlet/outlet for exhaust air in the main body casing are diagonally opposite to each other, as is well known. It is located in In the intermediate seasons of spring and autumn,
There is also a system in which the air supply paths immediately before and after the heat exchanger are connected directly by opening an opening/closing shutter, etc., so that outside air can be introduced directly into the room without passing through the heat exchanger.

[Problems to be solved by the invention] In the conventional heat exchange ventilation system described above, the inlet/outlet for air supply and the inlet/outlet for exhaust air in the main body casing are located diagonally, so the inlet/outlet when installed is In addition, it is necessary to be very careful not to make mistakes when connecting the ducts to the The configuration becomes complicated because of the non-linear path.
There was a problem in that the opening/closing shutter and the entire device became large.

This idea was made to solve these conventional problems, and it is possible to compactly construct the supply air flow path for bypassing the heat exchanger and the shutter that opens and closes it using only parts such as air guides. The purpose of the present invention is to provide a heat exchange ventilation system that is easy to install.

[Means for Solving the Problems] In the heat exchange ventilation system according to this invention, the inlet end and outlet end of the supply air path and the inlet end and outlet end of the exhaust air path are arranged so that they can be connected to a duct in the same straight line. a main body casing, a supply air blower that is incorporated into the main body casing and forms a supply air flow from an inlet end to an outlet end of a supply air passage, and an exhaust air blower that forms an exhaust air flow from an inlet end to an outlet end of an exhaust air passage. a heat exchanger that is built into the main body casing and exchanges heat between the supply air flow and the exhaust air flow between the inlet and outlet ends; An air guide that guides the supply air flow to the exchanger side and guides the supply air flow from the heat exchanger side to the supply air blower side. It is equipped with a passage that communicates with the air supply blower and a shutter that opens and closes this passage.

[Function] In this invention, the indoor air inlet/outlet end and the outdoor air inlet/outlet end of the main body casing are arranged in the same straight line so that they can be connected to ducts, so it is easy to connect the ducts to each inlet/outlet during installation work. In addition, an air guide is installed inside the inlet end of the main body casing regarding the supply air flow to guide the supply air flow to the heat exchanger side and to guide the supply air flow from the heat exchanger side to the supply air blower side. By simply providing this air guide with a passage that communicates with the air supply blower side without passing through a heat exchanger, and a shutter that opens and closes the passage, a ventilation system that can perform air supply operation without passing through a heat exchanger can be obtained.

[Example] Figures 1 to 6 all show a ceiling-embedded heat exchange ventilation device as an example of the present invention. In the illustrated heat exchange ventilation system, outdoor air is sucked in by a supply air blower 1 and blown into the room through a heat exchanger 3 held in a support structure within a main body casing 2, and indoor air is sucked in by an exhaust blower 4 to exchange the heat described above. The basic configuration that performs the heat exchange ventilation function of exhausting air to the outside through the vessel 3 is the same as that of this type which is generally well known. The feature of the heat exchange ventilation system of this example is that, regarding the main body casing 2, the inlet/outlet end 5 of the exhaust air path and the inlet/outlet end 6 of the supply air path are
Each is arranged in the same straight line to enable duct connection,
An inspection port 7 with a cover for maintenance of the incorporated heat exchanger 3 and each of the blowers 1 and 4 is provided on the same side surface so that maintenance and inspection can be performed from the same direction. The incorporated heat exchanger 3 has a laminated structure in which the elements are made of a material such as plastic that is difficult for liquid droplets to penetrate, and the main body casing 2 is arranged so that the outlet of the passage through which the exhaust air flows is lower than the inlet. incorporated within. The supply air blower 1, the exhaust air blower 4, and the heat exchanger 3 are all built into the main body casing 2 in a planar manner, and the inlet end 6 in the main body casing 2 of the supply air flow
There is air in contact with the end face of the heat exchanger 3, which guides the supply air flow to the upper passage of the heat exchanger 3, and guides the supply air flow flowing out from the lower side of the heat exchanger 3 to the suction side of the supply air blower 1. A guide 8 is provided. As shown separately in FIG. 4, the air guide 8 includes a side wall 8a that corresponds to the end surface of the heat exchanger 3, and a partition wall 9 that separates the front and rear parts.
A passage is opened in the partition wall 9, and a shutter 10 for opening and closing the passage is pivotally attached to the upper part of the partition wall 9. This shutter 1
0 is a configuration that opens and closes manually or by a drive machine.

Inlet end 5 in the body casing 2 of the exhaust flow
faces the suction side of the exhaust blower 4,
An outlet end 5 for blowing the exhaust flow into the upper passage of the heat exchanger 3 is provided on the bottom side of the main body casing 2 where the exhaust flow flowing out from the lower side of the heat exchanger 3 gathers. A duct 11 is connected to each of these entrance and exit ends 5 and 6, respectively.

In the figure, reference numeral 12 indicates an inspection hole provided in the ceiling surface, and reference numeral 13 indicates an anchor bolt for suspending and fixing the entire apparatus in the attic space or the like.

Figure 6 shows the supply air flow and exhaust air flow within the heat exchange ventilation system. In the heat exchange ventilation system configured as described above, the air supply flow A sucked in from the inlet end 6 on the air supply side is regulated by the air guide 8 immediately after passing through the inlet end 6. The air guide 8 is connected to a heat exchanger 3 as shown in FIG.
It consists of a side wall 8a that corresponds to the end surface of the front and rear walls, and a partition wall 9 that separates the front and rear parts. ,,,
Among them, the side wall 8a does not exist and flows into a spatially communicating space. After flowing into a space that is spatially connected to the space via the heat exchanger 3, it is guided to the opposite side of the partition wall 9, where there is no side wall 8a and the space is connected spatially, and then to the supply air blower 1. Therefore, air is blown toward the indoor side from the outlet end 6 on the air supply side.

On the other hand, the exhaust flow B is sucked in from the inlet end 5 of the exhaust flow, blown into the space by the exhaust blower 4, and then spatially communicated with this space via the heat exchanger 3. The air flows toward the outside of the room from the outlet end 5 of the exhaust flow.

As the supply air flow moves from space to space and the exhaust air flow moves from space to space, heat exchange between the two takes place within the heat exchanger.

By the way, when there is no need for heat exchange due to good weather such as spring and autumn, the shutter 10 provided on the partition wall 9 of the air guide 8 is opened. Since the inlet end and outlet end on the air supply side are on a substantially straight line, the air supply blower that guides the air supply to the outlet end is also located on this straight line, and the air supply flow that has passed through the inlet end 6 on the air supply side is teeth
The air is guided straight to the supply air blower 1 as shown in A'. At this time, there is no air path resistance such as a heat exchanger on the air path, and the inlet end 6 and the blower 1 are on a substantially straight line, so the supply air flows smoothly.
Low noise.

Therefore, the heat exchange ventilation system of this example can perform heat exchange ventilation by the supply and exhaust while exchanging heat between the supply and exhaust, and in the intermediate seasons such as spring and autumn, the shutter 10 can be opened and closed. Then,
Non-heat exchange ventilation in which outside air is introduced indoors without passing through the heat exchanger 3 can also be implemented. At this time, since the inlet end and the outlet end are arranged substantially in a straight line, the supply air flow entering from the inlet end passes through the passage of the partition wall 9 and reaches the outlet end in a substantially straight line. A bypass path with low resistance and low noise can be obtained. Furthermore, by adopting a configuration in which the exhaust air blower 4 is stopped and only the air supply blower 1 is operated, it is also possible to operate the air supply alone. Furthermore, since the elements of the heat exchanger 3 are made of a material that is difficult for liquid droplets to penetrate, the heat exchanger 3 is less likely to be destroyed by drainage. Furthermore, the exhaust flow inlet/outlet end 5 and the supply air flow inlet/outlet end 6 of the main body casing 2
are arranged in the same straight line so that they can be connected to the ducts, so during installation work, each entrance/exit end 5,
It is difficult to connect the duct 11 to the duct 6 incorrectly, and the installation work is not only simplified, but also the inspection port 7 with a cover for maintenance of the heat exchanger 3 and each blower 1, 4 is installed in the main body casing. Since they are provided on the same side of the two, their maintenance directions are the same, making maintenance and inspection of these easy.

[Effects of the invention] As is clear from the above description of the embodiments, the heat exchange ventilation system of the present invention has the following features: Since they are arranged so that the ducts can be connected on the same straight line, there is no need to make a mistake in connecting the ducts to each inlet/outlet during installation work. An air guide is provided to guide the supply air flow from the heat exchanger side to the supply air blower side, and this air guide is provided with a passage that connects to the supply air blower side without passing through the heat exchanger. By simply providing a shutter that opens and closes, it becomes a ventilation system that can supply air without passing through a heat exchanger. In other words, it is a heat exchange ventilation system in which the air supply passage for bypassing the heat exchanger and the shutter for opening and closing the passage can be compactly constructed using only parts such as an air guide, and it is easy to install.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a heat exchange ventilation system as an embodiment of the present invention, and FIG. 2 is a plan view thereof.
Figure 3 is a side view of the same, Figure 4 is a perspective view showing only the air guide, Figure 5 is an explanatory view showing the installation state, and Figure 6 is a perspective view showing the air flow inside the heat exchange ventilation system. It is. In the figure, 1 is a supply air blower, 2 is a main body casing, 3 is a heat exchanger, and 4 is a heat exchanger.
is the exhaust blower, 5 is the inlet/outlet end for the exhaust flow, and 6 is the exhaust blower.
is an inlet/outlet end related to the air supply flow, 7 is an inspection port, 8 is an air guide, and 10 is a shutter. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Scope of utility model registration request] A main body casing in which the inlet end and the outlet end of the supply air passage and the inlet end and the outlet end of the exhaust air passage are respectively disposed in the same straight line so that the duct can be connected; A supply air blower that forms a supply air flow from the inlet end to the outlet end; and an exhaust blower that forms an exhaust flow from the inlet end to the outlet end of the exhaust air passage; and a heat exchanger for exchanging heat between the air supply flow and the exhaust flow, and a heat exchanger provided inside the inlet end side of the supply air passage of the main body casing, and guiding the supply air flow from the inlet end side to the heat exchanger side for the heat exchange. an air guide that guides the air supply flow from the air supply device side to the air supply blower side; and an air guide provided in this air guide, which communicates from the inlet end side of the air supply air path to the air supply blower side without passing through the heat exchanger. A heat exchange ventilation device comprising a passage and a shutter for opening and closing the passage.