JPS63273748A - Ventilator of heat exchange type - Google Patents

Abstract

PURPOSE:To provide an ordinary ventilator in addition to a ventilator of heat exchange type to take advantage in economy and pleasantness and provide a device with easiness of maintenance by providing a damper unit which can be opened and closed freely not via a heat exchanger and partitions the suction port in a room and discharge port out of the room. CONSTITUTION:When either the air in a room or the air out of the room is passed through a heat exchanger 7, if a damper 14 is closed and a ventilator of heat exchange type is operated, the air in the room is sucked from the suction port 2 on the indoor side by a blower 10 for discharge air and passes through a rough dust filter 9 and through a heat exchanger 7 and discharged from the discharge port 5 on the outdoor side, and the air out of the room is sucked from the suction port 4 on the outdoor side from a blower 13 for supply air and passes through a filter 12 of medium performance and through a heat exchanger 7 and sucked into the room from a discharge port 3 on the indoor side. Next, when the air in the room is not passed through a heat exchanger 7 and only the air in the outdoor is passed through the heat exchanger 7, if the damper 14 is operated by opening it, the air in the room goes via a damper unit 15 and not through the heat exchanger 7 but goes out from the discharge port 5 on the outdoor side to the outdoor without going through the heat exchanger 7, and the air in the outdoor is sucked in the same way as when the damper is closed through the heat exchanger 7 and from the discharge port 3 on the indoor side.

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of Application 2/-1 The present invention relates to a heat exchange type ventilation device that recovers indoor thermal energy that is exhausted to the outside through ventilation.

Conventional technology In recent years, heat exchangers have been developed as a means of ventilating rooms that are currently being cooled or heated, by exhausting dirty air from the room to the outside, bringing in fresh air from the outdoors, and using heat exchangers between the indoor air and outdoor air. Heat exchange type ventilation devices have come into use that perform heat exchange through the process, transfer the thermal energy of the exhausted indoor air to the outdoor intake air, and recover it indoors.

For this reason, as shown in FIGS. 5 and 6, a conventional heat exchange type ventilation device has an air supply passage in a main body 103 that incorporates blowers 101 and 102 for taking in outside air and discharging indoor air. 104 and the intersection 10 of the exhaust passage 106
6 was provided with a heat exchanger 107 in the longitudinal direction.

Problems to be Solved by the Invention With such conventional duct air conditioning ventilation fans, even if it is more economical and more comfortable to supply outside air directly into the room during the intermediate seasons such as spring and autumn, There is a problem in that the air is drawn into the room after receiving the thermal energy of the indoor air discharged through the heat exchanger 107, resulting in a loss of comfort.

The present invention takes into account the above-mentioned conventional problems, provides a normal ventilation function in addition to heat exchange ventilation, and provides economical and comfort benefits, and also provides a damper for this normal ventilation function on the side of the heat exchanger outlet. The purpose of the present invention is to provide a heat exchange type ventilation system that is easy to maintain.

Means for Solving the Problem In order to solve this problem, the present invention provides a main body with an indoor suction port and an indoor discharge port that communicate with the room, and an outdoor suction port and an outdoor discharge port that communicate with the outdoors. A rectangular heat exchanger for exchanging heat between indoor and outdoor air is installed inside the main body so that the air passage surface is inclined at 45 degrees with respect to the horizontal plane. An exhaust blower is provided at a position upstream of the heat exchanger, and an air supply blower is provided at a position upstream of the heat exchanger in an air supply passage that supplies outdoor air into the room, and an air supply blower is provided at a position upstream of the heat exchanger. A damper unit is provided that has a damper that can open and close freely between the outdoor discharge port and the outdoor discharge port without going through the heat exchanger.

With this configuration, there is an air path from the indoor suction port through the heat exchanger to the outdoor discharge port, and a heat exchange air path from the outdoor suction port to the indoor discharge port via the heat exchanger (heat exchange ventilation). ), and an air path from the indoor side suction port to the outdoor side discharge port via the damper unit, and an air path from the outdoor side suction port to the indoor side discharge port via the M exchanger (normal ventilation air path). DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 to 4.

In the figure, 1 is the main body of the heat exchange type ventilation system, and the indoor side suction port 2 and indoor side discharge port 3 communicating with the room are on the - side.
In addition, an outdoor suction port 4 and an outdoor discharge port 5 communicating with the outdoors are provided on the other side. Inside the main body 1, a square prism heat exchanger 7 is provided which forms an air passage surface 6 and is inclined at 45 degrees with respect to the horizontal plane. In the exhaust passage 8 that discharges indoor air to the outdoors, a coarse dust filter 9 is provided on the downstream side of the heat exchanger 7, and an exhaust blower 10 is provided on the upstream side. A medium-performance filter 12 is provided on the downstream side of the heat exchanger 7 in the air passage 11, and an air supply blower 13 is provided on the upstream side. A damper unit 15 is provided on the lower surface of the main body 1, and is provided with a damper 14 that partitions the exhaust passage 8 that forms the indoor suction port 2 and the outdoor discharge port 5 so as to be openable and closable without passing through the heat exchanger 7. The damper 14 is removably mounted on the same surface as the heat exchanger element and the extraction side surface 16.

In the above configuration, when both indoor air and outdoor air are passed through the heat exchanger 7 as shown in FIG. Air is sucked in from the indoor side suction port 2, passes through the coarse dust filter 9, passes through the heat exchanger γ, and is discharged from the outdoor side discharge port 6. The air is sucked into the room through the medium-performance filter 12, the heat exchanger 7, and the indoor discharge port 3.

Next, as shown in Figure 3, the indoor air is passed through the heat exchanger 7,
When only outdoor air is passed through the heat exchanger 7, the damper 14 is opened and the heat exchange type ventilation system is operated, and the indoor air is sucked in from the indoor suction port 2 by the exhaust blower 1o.
After passing through the coarse dust filter 9, the damper unit 15, which has a lower loss resistance than the heat exchanger 7, is valved and is discharged outdoors from the outdoor outlet 5 without passing through the heat exchanger 7. 14, the air is sucked in from the outdoor suction port 4 by the supply air blower 13, passes through the medium performance filter 12,
The air is sucked through the indoor discharge port 3 through the heat exchanger 7.

As described above, according to this embodiment, heat exchange ventilation or normal ventilation can be performed by opening and closing the damper 14, and as shown in FIG. Since it is removably mounted on the same surface as the extraction side surface 16, it is easy to maintain. In addition, in Example 7 C, ·, the damper unit 16 was provided on the bottom surface of the main body 1.

It may be provided on the upper surface of the main body 1, and the effect will hardly be different.

Effects of the Invention As is clear from the description of the embodiments above, according to the present invention, the damper is closed during heating and cooling to perform heat exchange ventilation, and outside air is directly supplied indoors during the intermediate seasons such as spring and autumn, unlike conventional methods. Heat exchange ventilation was used even when it was better for economy and comfort, but opening the damper allows normal ventilation, which is advantageous both economically and for comfort. Since it is removably mounted on the same surface as the exchanger extraction side, maintenance can be performed through the inspection hole provided in the ceiling, just like in the past.

[Brief explanation of the drawing]

Fig. 1 is a plan sectional view of a heat exchange type ventilation system according to an embodiment of the present invention, and Figs. 2 and 3 are side sectional views of the same heat exchange type ventilation system, showing a barrel diagram with a heat exchange ventilation function and a normal ventilation function. Fig. 4 is a perspective view showing the state of attachment and detachment of the heat exchanger and damper of the heat exchange type ventilation system, and Figs. 5 and 6 are a plan sectional view and a side sectional view of the conventional heat exchange type ventilation system. It is a diagram. 1...Main body, 2...Indoor suction port, 3
...Indoor discharge port, 4...Outdoor suction port, 6...Outdoor discharge port, 6...Air passage surface, 7... ... Heat exchanger, 8 ... Exhaust passage, 1o ... Exhaust blower, 11 ... Air supply passage, 13 ... Air supply blower, 14...
...Damper, 16...Damper unit, 16.
...Take-out side.

Claims (2)

[Claims] (1) Inside the main body, an indoor suction port and an indoor discharge port communicating with the room, and an outdoor suction port and an outdoor discharge port communicating with the outdoors are installed. A prismatic heat exchanger is provided, and the exhaust passage is for discharging indoor air to the outdoors, and an exhaust blower is provided upstream of the heat exchanger, and the air supply passage is for supplying outdoor air into the room. The heat exchanger is provided with a supply air blower on the upstream side thereof, and a damper unit having a damper that freely partitions the indoor side suction port and the outdoor side discharge port without passing through the heat exchanger. Replaceable ventilation system. (2) The heat exchange type ventilation device according to claim 1, wherein the damper is detachably attached from the side.