JPH0612473Y2 - Heat exchange ventilator - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a large-scale heat exchange ventilator that is the core of an air conditioning system that performs heat recovery by heat exchange together with ventilation.

[Prior Art] The conventional heat exchange ventilator of this kind has been disclosed in Japanese Utility Model Publication No. 56-
32773 and JP-B-49-43080, respectively. Basically,
It is composed of an exhaust blower that forms an exhaust flow and exhausts it outdoors, an air supply blower that forms a supply air flow and supplies it indoors, and a heat exchange element that performs heat exchange between the exhaust flow and the supply air flow. today,
The heat exchange ventilator actually used in the air conditioning system is composed of three units as shown in FIG. That is, two units of the blower chamber structure 20 incorporating the blower 19 and one heat exchange chamber structure 22 incorporating the two vertically stacked heat exchange elements 21 are arranged in close proximity to each other in a plane, and Individual blower chamber structure 20
Are connected to the heat exchange chamber structure 22 by ducts 23, respectively. The heat exchange chamber structure 22 has an exhaust suction port and an outside air suction port.
In each of them, an outlet 24 is opened. The exhaust flow sucked from the exhaust suction port passes through one passage of the heat exchange element 21, enters the blower chamber structure 20 set for exhaust from the duct 23, is blown out from the blowout port 24, and is exhausted to the outside. . The outside air flow (supply air flow) sucked from the outside air intake port passes through the other passage of the heat exchange element 21 and enters from the duct 23 into another blower chamber structure 20 set for supply air, and the outlet port 24. It is blown out from and is supplied indoors. The exhaust flow and the supply air flow flow in a specific flow path without being mixed, and heat exchange (total heat exchange or sensible heat exchange) is normally performed between the two in the heat exchange element 21, but as shown in the example of FIG. In the case where the bypass circuit including the bypass duct 25 including the switching damper is provided between the upstream portion of the outside air inlet and the blower chamber structure 20 set for air supply, the outside air bypasses the heat exchange element 21 to directly It can also be supplied indoors.

[Problems to be Solved by the Invention] In the above-described conventional heat exchange ventilator, three units of two blower chamber structures 20 and one heat exchange chamber structure 22 incorporating a heat exchange element 21 are provided close to each other. Since the blower chamber structure 20 and the heat exchange chamber structure 22 are connected to each other by the duct 23, the installation requires a considerably large area, and the duct 23 and its accompanying configuration and There is a problem in that the cost is high depending on the parts and that the bypass circuit is provided, the configuration of the part is complicated and the installation work cost is high.

This invention was made in order to solve such a conventional problem, the installation area is small, and the overall cohesion is good.
The purpose of the present invention is to obtain a heat exchange ventilation device that does not require bypass circuit construction and can be manufactured at low cost.

[Means for Solving Problems] A heat exchange ventilator according to the present invention has a plurality of vertically arranged blower chamber structures each having a box shape in which an exhaust blower and an air supply blower are individually incorporated. One box-shaped heat exchange chamber structure, which has stacked heat exchange elements and has suction chambers formed on both sides of these heat exchange elements, is jointly arranged to form a rectangular box-stacked structure. At the same time, the flow path ends of the exhaust flow path formed inside the heat exchange chamber structure for passing the exhaust flow and the air supply flow path for passing the supply air flow in contact with the exhaust flow path are defined by the blower chamber. Within the plane area of the upper surface of the structure, each is connected to the suction side of the exhaust blower and the suction side of the air supply blower in the blower chamber structure, and the suction chamber on one side is not directly passed through the heat exchange element. Blower tea An air passage communicating with one of the blowers in the valve structure is formed in the vertical direction, and at the inlet portion of this air passage, one of the inlet portion and the inlet to the heat exchange element is closed, and the other Is provided with a switching damper for opening.

[Operation] In the present invention, the whole is a rectangular box-stacking structure, the projected plane area is almost the same as the projected plane area of the blower chamber structure, and the occupied area for installation is small. In addition, by stacking the heat exchange chamber structure in the blower chamber structure in a box, a series of exhaust passages, air supply passages, and switchable air passages (bypasses) can be configured without using devices such as ducts and other separate components. Will be done.

[Embodiment] All of FIGS. 1 to 3 show a heat exchange ventilator as an embodiment of the present invention. FIG. 5 is a perspective view showing the flow of the exhaust flow of this embodiment by the arrow a in the figure, FIG. 6 is a perspective view showing the flow of the supply air by the arrow b of the figure, and FIG. 7 is the flow of the bypass flow. FIG. 6 is a perspective view showing the arrow C in the figure. FIG. 8 is an exhaust flow path diagram showing the exhaust flow flow of the upper total heat exchange apparatus, FIG. 9 is an exhaust flow path view showing the exhaust flow flow of the lower total heat exchange apparatus, and FIG. FIG. 11 is an air supply flow path diagram showing the flow of the supply air flow of the total heat exchange device, and FIG. 11 is a supply air flow path diagram showing the flow of the supply air flow of the lower total heat exchange device. The heat exchange ventilation device of this example is a large-sized one that is the core of an air conditioning system for a building, and has the appearance of two units stacked in a box. That is, on the unit which is the box-shaped blower chamber structure 3 in which the exhaust blower 1 and the supply air blower 2 are separately sectioned side by side and assembled, the upper and lower two-stage crossflow type total heat exchange elements 4 are stacked. And a box-shaped heat exchange chamber structure 6 formed by joining two suction chambers 5 on both sides of each total heat exchange element 4 is joined and arranged. The entire device is a rectangular box-stacking structure whose projected flat area is the same as that of the blower chamber structure 3. The flow path ends of the exhaust flow path and the air supply flow path, which are formed inside the heat exchange chamber structure 6 and through which the exhaust flow is formed, respectively, within the plane area of the upper surface of the blower chamber structure 3. Each of them directly communicates with the suction side of the exhaust blower 1 and the suction side of the air supply blower 2 in the blower chamber structure 3 individually (the structure itself does not communicate with another connecting component such as a duct). It is a thing.)

The heat exchange chamber structure 6 has four layers of chambers on both sides of the total heat exchange element 4. The uppermost chamber and the third chamber from the top are the suction chambers 5, one of which is connected to the exhaust suction port 7, and the other of which is connected to the supply air suction port 8. Suction flanges 9 are attached to the upper and lower two exhaust suction ports 7 so that they can be connected together with a suction member facing the room. Further, the upper and lower two air intake ports 8 are also provided with suction flanges 10 capable of connecting them together with a suction member facing the outdoors. The second and bottom layers of the four-layer chamber are
It is an introduction part of the exhaust flow (which is the flow of the indoor air) and the supply air flow (which is the flow of the introduced outside air) that have passed through each total heat exchange element 4. The upper and lower chambers on one side, which are the inlets of the exhaust air flow, are communicated with each other by the vertical duct structure 11 formed at one corner, and the upper and lower chambers on the other side, which are the inlets of the air supply flow, are also connected to the one corner. The upper and lower duct structures 12 communicate with each other. Each of the lowermost chambers has downward connection opening portions at its corners, and these connection opening portions are respectively connected to the connection openings formed on the upper surface of the blower chamber structure 3 to match the exhaust flow. A series of exhaust gas passages that pass through and a series of air supply passages through which the supply air flow passes are configured to be independent of each other. The inlet end of the exhaust flow path is an exhaust suction port 7, and the outlet end thereof is an exhaust air outlet 13 opened at a position corresponding to the blowout portion of the exhaust blower 1 of the blower chamber structure 3. Further, the inlet end of the air supply flow path is the air supply suction port 8, and the outlet end thereof is the air supply outlet 14 that is opened at a position corresponding to the blowout portion of the air supply blower 2 of the blower chamber structure 3. In addition, each total heat exchange element 4
A filter 15 that can be removed together with the total heat exchange element 4 being pulled out from the heat exchange chamber structure 6 for maintenance and inspection is attached to the introduction side of the.

The exhaust flow path and the air supply flow path according to the above description are configured by the paths of the total heat exchange element 4 in the middle, and are configured on the premise of heat exchange. There is another type of wind path. That is, the blower chamber structure 3 is directly passed from each air intake port 8 through the intake chamber 5 (on the side of the air intake port at the uppermost stage and the third stage from the top in the figure) without passing through the total heat exchange element 4. It is an air passage 17 with a switching damper 16 that communicates with the supply air blower 2. This air passage 17 corresponds to a bypass circuit in the conventional device, and is formed in the suction chamber 5 on the side of the air intake 8 in the vertical direction. The inlet part of the air passage 17 is the uppermost partition and the lower partition plate 1 which constitutes each suction chamber 5 in the third step from the top.
It opens to 8. The air supply introduction portion to the total heat exchange element 4 provided on the vertical partition plate on the side of the total heat exchange element 4 and each inlet portion of the air passage 17 are at corresponding positions, and the switching damper 16 is provided for the portion. Are rotatably pivoted one by one. Each switching damper 16 rotates in conjunction with each other, closing either one of the inlet portion and the air supply introducing portion to the total heat exchange element 4, and opening the other.

In this example, the air passage 17 constitutes an air supply bypass circuit, but the air passage 17 can also be constructed as an exhaust bypass circuit with the same configuration.

The heat exchange ventilation device of this example having the above-described configuration, like the device of this type up to now, simultaneously supplies the outside air to the room and exhausts the indoor air to the outside, and between them. It is possible to perform the heat exchange while performing the heat exchange (see FIG. 2) or perform the bypass ventilation operation (see FIG. 3) for directly supplying the supply air to the room without passing through the total heat exchange element 4. Further, in the device of this example, the whole is a rectangular box-stacking structure, and the projected plane area is almost the same as the projected plane area of the blower chamber structure 3. Therefore, the occupied area for installation is sufficiently smaller than the conventional devices. Become. Further, the heat exchange chamber structure 6 is stacked in a box on the blower chamber structure 3, and a series of exhaust passages, supply passages, and switchable air passages (bypasses) 17 are configured without mounting separate parts such as ducts. As a result, it is compact, costs are reduced, and construction costs are low.

[Effects of the Invention] As is apparent from the above description of the embodiments, the heat exchange ventilation device of the present invention is a box-shaped blower chamber structure in which an exhaust blower and an air supply blower are individually incorporated. , Two upper and lower stacked heat exchange elements are built-in, and one box-shaped heat exchange chamber structure that constitutes the suction chamber is joined and arranged on both sides of these heat exchange elements, and the whole of the heat exchange elements has a rectangular shape. Each of the flow path ends of an exhaust gas flow path, which is formed in the heat exchange chamber structure and forms a box-stacked structure, and an air supply flow path, through which a supply air flow that is in contact with the exhaust gas flow path, passes. , In the plane area of the upper surface of the blower chamber structure, respectively to communicate with the suction side of the exhaust blower and the suction side of the air supply blower in the blower chamber structure, and the one side of the suction chamber, the heat exchange element Directly without passing In the blower chamber structure, an air passage communicating with one of the blowers in the blower chamber structure is vertically formed, and at the inlet portion of this air passage, one of the inlet portion and the inlet to the heat exchange element is closed. , A switching damper for opening the other is provided. Therefore, the whole is a rectangular box-stacked structure, the projected plane area is almost the same as the projected plan view of the blower chamber structure, and the occupied area for installation is small. In addition, by stacking the heat exchange chamber structure in the blower chamber structure in a box, a series of exhaust passages, air supply passages, and switchable air passages (bypass) are configured without mounting separate parts such as ducts. Therefore, it is possible to reduce the cost without the need for bypass circuit work. In particular, even in the case of a large heat exchange ventilator having a large air flow rate, the plane area of the device does not increase because a plurality of heat exchange elements are vertically stacked.

[Brief description of drawings]

FIG. 1 is a front view showing a heat exchange ventilation apparatus according to an embodiment of the present invention, FIG. 2 is a side view showing the same flow of air during the heat exchange ventilation, and FIG. FIG. 4 is a side view showing the flow of air, FIG. 4 is a plan view of a conventional heat-heat exchange ventilator, and FIG. 5 is a perspective view showing the flow of exhaust air in one embodiment of the heat-exchange ventilator. FIG. 7 is a perspective view showing the flow of the supply air flow, FIG. 7 is a perspective view showing the flow of the bypass flow, and FIG. 8 (a) is an exhaust flow showing the flow of the exhaust flow of the upper total heat exchange device. FIG. 8 (b) is a side view thereof, FIG. 9 (a) is a perspective view of an exhaust passage showing the flow of exhaust flow of the lower total heat exchange apparatus,
9 (b) is a side view thereof, FIG. 10 (a) is a perspective view of an air supply passage showing a flow of an air supply flow of the total heat exchange apparatus in the upper stage, and FIG. 10 (b) is a side view thereof. FIG. 11 (a) is a perspective view of the air supply passage showing the flow of the air supply of the lower total heat exchange apparatus, and FIG. 11 (b) is a side view thereof. Is an exhaust blower, 2 is an air supply blower, 3 is a blower chamber structure, 4 is a total heat exchange element, 5 is a suction chamber, 6 is a heat exchange chamber structure,
Reference numeral 16 is a switching damper, and 17 is an air passage (bypass). The same reference numerals in the drawings indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] 1. A box-shaped blower chamber structure 3 in which an exhaust blower 1 and an air supply blower 2 are individually incorporated, and a plurality of vertically stacked heat exchange elements 4 are built in the blower chamber structure 3. On both sides of the heat exchange element 4, a box-shaped heat exchange chamber structure 6 that constitutes a suction chamber 5 is jointly arranged,
The whole is formed into a rectangular box-stacking structure, and an exhaust flow passage formed in the heat exchange chamber structure 6 for passing an exhaust flow and a feed air flow in thermal contact with the heat exchange element 4 are passed through the exhaust flow passage. The respective flow path ends of the air supply flow path are connected to the suction side of the exhaust blower 1 and the suction side of the air supply blower 2 in the blower chamber structure 3 within the plane area of the upper surface of the blower chamber structure 3, respectively. In addition, in the suction chamber 5 on one side, an air passage 17 that directly communicates with one of the blowers in the blower chamber structure 3 without passing through the heat exchange element 4 is vertically formed, and the inlet of this air passage 17 is formed. A heat exchange ventilator, characterized in that a switch damper (16) for closing one of the inlet and the inlet to the heat exchange element (4) and opening the other is provided in the part.