JPH01318841A - Ventilating apparatus with heat exchanger - Google Patents

Abstract

PURPOSE:To increase the flow of air as occasion demands by providing dampers for opening and closing a bypass formed around a heat exchanger and also a damper at a side wall of the exhaust air passage or the supply air passage as a means of switching the air course. CONSTITUTION:A bypass 13 is formed around a heat exchanger 10 and in parallel with an exhaust air passage 6 or a supply air passage 7. There are provided dampers 34 as means of opening and closing the bypass and also a damper 37 at a side wall of the exhaust air passage or the supply air passage as a means of switching the air course. The dampers 34 for the bypass and the one 37 for switching the air course are designed to shift the directions in which blowers 8, 9 draw in air and blow it out; by switching these dampers 34, 37 the supply blower 9 and the exhaust blower 8 can be made both to send air in one and the same direction so as to increase the flow of air.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a ventilation system with a heat exchanger having a bypass passage, and particularly relates to air path switching.

[Conventional technology]

FIG. 10 is a plan view showing a conventional ventilation system with a heat exchanger disclosed in, for example, Japanese Utility Model Application No. 61-197429,
In the diagram, (1) is the suction port! 2) (31 and air outlet (4)
1 (5) is a box provided on each of the indoor side and outdoor side, (6) and An air supply passage (8) from the indoor side suction port U to the outdoor side air outlet (exhaust passage leading to 51 and from the outdoor suction port B to the indoor side air outlet) is provided in this exhaust passage (6). (9) is a wide flow type blower that forms a supply air flow provided on the air supply road m;
0) is provided at the intersection and is removably inserted into the box body, for example, as shown in Japanese Patent Publication No. 19990/1983, for exchanging temperature and humidity between the supply air flow and the exhaust air flow. The heat exchanger, <ll) is the above-mentioned air blower fi (
81 (91 vane casing, (I2) is the above suction port ■
($) and the connecting member for the air supply and exhaust ducts provided at the air outlet f4) f5), (13) is the connection member for the exhaust passage (6)
) and a bypass passage that bypasses the heat exchanger 00);
(14) is a damper that switches between the bypass passage and the exhaust passage (6), and is connected to a drive fi (16) consisting of a geared motor or the like via a connector (15).

A conventional ventilation system with a heat exchanger is configured as described above, and by operating the exhaust blower (8) and the supply air blower (9), indoor air is drawn from the indoor air intake (to) the box body. (1)
The air is sucked into the air, passes through the heat exchanger 00 in the exhaust passageway (6), is blown out from the outdoor air outlet (5), and is discharged outdoors. Outdoor air is sucked into the box (1) from the outdoor suction port (3), passes through the heat exchanger aω in the air supply passage m, is blown out from the indoor air outlet 4), and is supplied into the room. At this time, heat exchange is performed between the exhaust air flow and the supply air flow in the heat exchanger GO+, and exhaust heat is recovered to reduce the heating and cooling load. On the other hand, during intermediate periods when the heat exchanger QOI is not required, such as spring and autumn, the driver (16) is driven to rotate the damper (14) to open bypass passage 1 (13), and the heat exchanger Close the exhaust passage (6) to aω. As a result, the exhaust flow is exhausted through the bypass passage (13), and since the air path resistance is small, a large amount of air can be obtained.

[Problem to be solved by the invention]

In the conventional ventilation system with a heat exchanger as described above, the damper (
I4) is used to switch between the exhaust passage (6) and the bypass passage (13) to exhaust air without passing through the heat exchanger (10). ) alone has its limits, and there was a problem in that it was not possible to obtain a large displacement.

This invention was made to solve the problem,
The object of the present invention is to provide a ventilation system with a heat exchanger that can switch both blowers to supply air or exhaust air by switching dampers, and can obtain a large amount of air.

[Means to solve the problem]

The ventilation device with a heat exchanger according to the present invention includes a bypass passage that bypasses the heat exchanger and is arranged in parallel with an exhaust passage or an air supply passage,
A bypass damper is provided to open and close the bypass passage, and an air passage switching damper is provided on the side wall of the exhaust passage or air supply passage, and the suction and blowing directions of the blower are switched by the bypass damper and the air passage switching damper.

[Effect]

In this invention, by switching the suction and blowing directions of the blower using the bypass damper and the air path switching damper, the blowing directions of the supply air blower and the exhaust blower can be made to be the same, and many scenery can be obtained. be able to.

〔Example〕

Figures 1 to 5 are views showing one embodiment of the present invention, Figure 1 is a perspective view with the lid removed, Figure 2 is a plan view showing the flow of wind, and Figure 3 is a 4 is a side view, FIG. 4 is a perspective view showing a state in which the air passages are switched, and FIG. 5 is a plan view showing the flow of air in FIG. 4.

In the figure, (1) to (13) show the same or equivalent parts as the above conventional example, each room is provided in the box (1) by a partition plate (3I), and (2)) shows the heat exchanger α0 ) by inserting four chambers (17) (18) (19
) (20> is formed in the heat exchanger chamber, (22) is a rotating shaft that communicates with the chamber (17) through an opening (23) in the partition plate (31) in the insertion/removal direction of the heat exchanger QOI. This is an exhaust blower room in which a radial type exhaust blower (8) is disposed perpendicularly to the outside, and an outdoor air outlet (5) is provided at the end of the blade casing (11). (24) is a radial flow type in which the chamber (18) and the partition plate (31) are provided with an opening (25) and the rotating shaft communicated with each other is arranged perpendicular to the insertion/removal direction of the heat exchanger α0). Air supply air a! In the air supply blower room in which f91 is installed, an indoor air outlet 4) is provided at the end of the blade casing (11). (26) is an outdoor suction chamber provided at the bottom and side of the exhaust blower chamber (22), which communicates with the chamber (19) through an opening (not shown) in the partition plate; A suction port (3) is provided. (27) is the room (20) and the partition plate (3).
an indoor suction passageway (29) provided in the lower part of the supply air blower room (24) and communicating with the opening (28) in 1);
An indoor suction chamber communicates with this indoor suction passage through an opening (30), and an indoor suction port is provided on the side wall. The bypass passage (13) is provided on the side of the heat exchanger chamber (2), and has openings (32) (33) in the partition plate (31).
), and the indoor side suction port (2) and the outdoor side air outlet (51) are formed so as to be short-circuited and communicated with each other (34).
are bypass dampers provided at both end openings of the bypass passage (13) to open and close the bypass passage (13), and are rotatably formed with a rotation shaft (35) provided at the end. . (36) is the electric motor of the blower f81 f91, (37) is an air path switching damper provided on the outlet side wall of the exhaust blower (8), and has a dimension that overlaps with the bypass damper (34), The outlet of the exhaust blower (8) and the outdoor outlet (5) are provided so as to be openable and closable so as to communicate with each other. (38) is a cover for inserting and removing the heat exchanger QOI. The indoor side suction port (2) and the outdoor side outlet (5) are connected to the box body (1) in a direction perpendicular to the insertion/removal direction of the heat exchanger (101).
), and the outdoor side suction port B) and the indoor side air outlet (4) are provided on the side wall opposite to this side wall. In addition, as described above, the electric motor rotating shafts of the exhaust blower (8) and the supply air blower (9) are connected to the heat exchanger 00).
is installed perpendicular to the direction of insertion into and removal from the box body (1), and from the relationship of the vane casing (11), air is discharged parallel to the insertion and removal direction of the heat exchanger α. It is bent at a right angle, and the indoor side air outlet (4) and the outdoor side air outlet (air are blown out from the town).

The ventilation system with a heat exchanger configured as described above, in air conditioning ventilation using a heat exchanger, closes the bypass passage with a bypass damper (34) as shown in Fig. 2, and also switches the air path. By closing the damper (37) and operating each blower +81 (91),
Indoor air is sucked into the indoor suction chamber (29) from the indoor suction port (2) through the duct, and is routed from the opening (30) to the indoor suction passage (27) to the room (20) to the heat exchanger (10). → Chamber (17) → Opening (23) → Exhaust blower (8) Chamber (22)
Exhaust air blower 111 (8) passes through the exhaust passage (6) leading to
The outdoor air is blown out from the outdoor air outlet (51) and exhausted to the outside through the duct.The outdoor air is sucked into the outdoor air suction chamber (26) from the outdoor air intake port (3) through the duct.
Chamber (19) → Heat exchanger 001 → Chamber (18) → Opening (25
) → The air passes through the air supply passage (2) leading to the air supply blower room (24), is blown out from the indoor air outlet (4+) by the air supply blower (9), and is supplied into the room via the duct. ,
In the heat exchanger aω, heat exchange is performed between the exhaust air flow and the supply air flow, and the exhaust heat is recovered to reduce the heating and cooling load. On the other hand, during spring and autumn, when air conditioning is not required, or when air is rapidly supplied,
When ventilation such as exhaust is desired, the bypass damper (34) and the air path switching damper (37) are rotated to overlap them as shown in FIGS. 4 and 5. As a result, the outdoor air outlet (51 is an exhaust blower (
The air outlet of the exhaust blower (8) communicates with the indoor air inlet (2) via the bypass passage (13). In this state, each air blower Rts+ (9) is operated. From the outdoor suction port (3) to the indoor air outlet &
The air blowing leading to step 4) is performed in the same manner as the air conditioning ventilation described above, but the air blowing by the exhaust blower (8) is performed through the outdoor air outlet (9).
from the opening (32) → bypass passage (13)
→ Opening (33) → Passing through a bypass ventilation path leading to the indoor suction chamber (29), the air is blown out from the indoor suction port (2). In this way, since the air passages of the exhaust blower (8) and the air supply blower (9) are switched in the same direction, air can be supplied by both blowers f81 (91), and a large amount of air can be obtained. As mentioned above, due to air-conditioning ventilation or normal ventilation, the heat exchanger 00) becomes dirty and needs to be cleaned, but the cover (
By removing the heat exchanger (38) and pulling out the heat exchanger, it can be cleaned with a vacuum cleaner, etc., and the heat exchanger can be inserted and removed from the suction port (2) (31) and the air outlet (41 (with respect to the formation direction of 51). Because they are perpendicular to each other, the supply and exhaust piping does not get in the way.Also, the rotation axes of the exhaust blower (8) and the supply air blower (9) are aligned with respect to the insertion/removal direction of the heat exchanger 001. By being orthogonal to each other, the larger blade casing (II) is arranged parallel to the heat exchanger 0, and the depth of the box body 1) becomes smaller. Width The dimensions are determined by the dimensions of the heat exchanger α0).

In the above embodiment, the bypass damper (34) and the air passage switching damper (37) are manually switched, but as shown in FIGS. Connector similar to conventional one (15)
If the air passages are rotated by the drive machine (16) through the air passages, the air passages can be switched easily.

〔Effect of the invention〕

As explained above, the present invention includes a box body in which one set of suction ports and one set of air outlets are provided on each of the indoor side and the outdoor side, and a structure in which the above-mentioned suction ports and the above-mentioned blow-off ports cross each other in the box body. an air supply passage and an exhaust passage provided from the indoor side to the outdoor side; a blower provided in the air supply passage and the exhaust passage for forming an air supply flow and an exhaust air flow; a heat exchanger that exchanges heat between the supply air flow and the exhaust air flow; a bypass passage that is arranged in parallel with the exhaust passage or the air supply passage and bypasses the heat exchanger; and a bypass damper that opens and closes the bypass passage. and an air passage switching damper provided on the side wall of the exhaust passage or the air supply passage, and the bypass damper and the air passage switching damper switch the suction and blowing directions of the blower, as necessary. This has the effect of producing a large amount of air.

By forming the bypass damper and the air path switching damper so that they can be rotated by a drive machine, it is possible to easily switch the dampers.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the present invention with the lid removed, Fig. 2 is a plan view also showing the flow of wind, Fig. 3 is a side view of Fig. 2, and Fig. 4. is the bypass passage (1
3) is a perspective view showing the state in which the device is used, FIG. 5 is a plan view showing the wind flow in FIG. 4, and FIG. 6 is a perspective view showing another embodiment of the present invention with the lid removed. , FIG. 7 is a plan view showing the flow of the wind, FIG. 8 is a perspective view showing the state in which the bypass passage (13) is used, and FIG. 9 is a plan view showing the flow of the wind in FIG. Figure 1O is a plane (11) view showing a conventional ventilation system with a heat exchanger. In addition, the same reference numerals in each figure indicate the same or equivalent parts.
1) is a box body, (2) is an indoor air inlet, (3) is an outdoor air inlet, (4) is an indoor air outlet, (51 is an outdoor air outlet,
(6) is an exhaust passage, (to) is an air supply passage, (8) is an exhaust blower, (9) is a supply air blower, 001 is a heat exchanger, (
13) is a bypass passage, (15) is a connector, (16) is a driver, (34) is a bypass damper, and (37) is an air path switching damper.

Claims (2)

[Claims] (1) A box body in which one set of suction ports and one set of air outlets are provided on each of the indoor side and the outdoor side, and the above-mentioned chamber provided in the box body so as to intersect between the above-mentioned suction ports and the above-mentioned blow-off ports. An air supply passage and an exhaust passage extending from the inside to the outside of the room, a blower provided in these air supply passage and exhaust passage to form an air supply flow and an exhaust air flow, and an air blower provided at the intersection to form an air supply flow and an exhaust air flow. a heat exchanger that exchanges heat with the air flow; a bypass passage that is arranged in parallel with the exhaust passage or the air supply passage and bypasses the heat exchanger; a bypass damper that opens and closes the bypass passage; A ventilation system with a heat exchanger, comprising: an air passage switching damper provided on a side wall of an air supply passage, the bypass damper and the air passage switching damper switching the suction and blowing directions of the blower. . (2) The ventilation system with a heat exchanger according to claim 1, wherein the bypass damper and the air path switching damper are configured to be rotated by a drive machine.