JPH05223306A - Ventilating device with heat exchanger - Google Patents

Abstract

PURPOSE:To obtain a ventilating device wherein pressure loss in an inner passage is small and ventilating characteristics are good. CONSTITUTION:An exhaust passage and a feed air passage of radial flow blowers 14, 15 are formed in a box-like body 1 wherein a set of suction port and a blowoff port is provided on the indoor side and on the outdoor side respectively. In an feed air casing 30 and in an exhaust casing 37, there are provided a first guide plate 33 and a second guide plate 40, which are inclined downwardly toward the center of the casings.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation device with a heat exchanger.

[0002]

2. Description of the Prior Art FIGS.
It is a figure which shows the conventional ventilation device with a heat exchanger shown by 643 gazette, 1 is a box in the figure, and the upper surface member 2,
It is formed by the bottom surface member 3 and the side surface members 4, 5, 6, 7. 8 is an indoor suction port, 9 is an outdoor suction port, 10 is an indoor air outlet, 11 is an outdoor air outlet, 12 is an exhaust passage extending from the indoor air inlet 8 to the outdoor air outlet 11, and 13 is a room. In the air supply passage extending from the outer suction port 9 to the indoor outlet 10, these passages 12 and 13 are formed so as to intersect each other in the box body 1. Reference numeral 14 is a radiant flow type blower for exhaust provided in the exhaust passage 12, 15 is a radiant flow blower for air supply provided in the air supply passage 13, 16 is the exhaust passage 12 and the air supply passage in the box body 1. A heat exchanger that is detachably provided at the intersection with 13, and that exchanges temperature and humidity between the air supply flow and the exhaust flow, 19 is a cover that closes the insertion / removal opening of the heat exchanger 16, and 20 is a duct connection. Reference numeral 22 is a bypass chamber, 23 is a damper plate for switching to the bypass chamber, 24 is a blade casing of the air supply blower 15, and the indoor portion of the air supply passage 13 and the indoor portion of the exhaust passage 12 are integrally formed. A molding member made of a porous structure, 25 is a blade casing of the exhaust blower 14, and a molding member made of a porous wet structure in which the outdoor portion of the exhaust passage 12 and the outdoor portion of the air supply passage 13 are integrally formed. Two
6 is a motor, 27 is a fan mounting plate, 28 is a heat exchanger holder, and 29 is a separator that separates the air supply passage and the exhaust passage from the heat exchanger.

The conventional ventilator with a heat exchanger is constructed as described above, and by operating the exhaust blower 14 and the air supply blower 15, the indoor air is supplied from the indoor suction port 8 to the box as shown by arrow a. It is sucked into the body 1, passes through the heat exchanger 16 in the exhaust passage 12, is blown out from the outdoor outlet 11 as indicated by arrow B, and is discharged to the outside of the room. On the other hand, the outdoor air is sucked into the box body 1 from the outdoor suction port 9 as shown by the arrow C, passes through the heat exchanger 16 in the air supply passage 13, and passes through the indoor outlet port 10.
The air is blown out from the room as shown by the arrow D and air is supplied to the room. At this time, heat exchange is performed in the heat exchanger 16 between the exhaust air flow and the supply air flow, and the exhaust heat is recovered to reduce the heating and cooling load.

[0004]

In the conventional ventilation device with a heat exchanger as described above, the blower 1 for exhaust and air supply is provided.
Exhaust and air supply passages 12, 13 are partly formed integrally with the vane casings 24, 25 of Nos. 4 and 15, but there are irregularities in the flow paths of the integrally formed portions of the vane casings 24, 25.
A turbulent flow is generated in this portion, and this turbulent flow causes a pressure loss, which reduces the blowing ability.

Further, since both ends of the separator 29 are substantially right angles, there is a problem that the pressure loss increases due to the rapid expansion of the air passage and the air blowing performance decreases.

The present invention has been made to solve the above problems, and it is an object of the present invention to obtain a ventilation device with a heat exchanger in which the pressure loss of the air supply flow and the exhaust flow inside the ventilation device is reduced and the ventilation performance is improved. It is intended.

[0007]

A ventilator with a heat exchanger according to the present invention includes a box body having a pair of inlets and a pair of outlets on the indoor side and the outdoor side, respectively, and the above box in the box body. An air supply passage and an exhaust passage extending from the indoor side to the outdoor side, which are provided so as to intersect between the intake port and the blowout port, and an air supply passage provided in these air supply passage and exhaust passage, A blower having a casing and a blower unit in which a part of the exhaust passage is integrally formed, a separator attached to the casing of the blower, for separating the air supply passage and the exhaust passage, the air supply flow and the exhaust air flow. And a heat exchanger for exchanging heat between the casing and the separator, in which guide plates for the air supply flow and the exhaust air flow are integrally formed.

[0008]

According to the present invention, a box body having a pair of inlets and a pair of outlets on the indoor side and the outdoor side is provided, and the inside of the box is made to intersect between the inlet and the outlet. An air supply passage and an exhaust passage that extend from the indoor side to the outdoor side, and a casing that is provided in the air supply passage and the exhaust passage and in which a part of the air supply passage and the exhaust passage are integrally formed; A blower comprising a blower, a separator attached to the casing of the blower, for separating the air supply passage and the exhaust passage, and a heat exchanger for exchanging heat between the air supply flow and the exhaust flow. In this case, since the guide plates for the air supply flow and the exhaust flow are integrally formed in the casing and the separator, the air supply flow and the exhaust flow flow along the guide plates of the casing and the separator.

[0009]

1 to 7 are views showing an embodiment of the present invention. In the drawings, 1 to 23 and 26 to 28 show the same or corresponding parts as in the above conventional example, and 30 is a supply casing. For example, it is made of styrofoam, and one side is provided with an indoor air outlet portion 31 communicating with the indoor side air outlet 10, and the other side is provided with an indoor suction portion 32 in which a switching damper 23 is installed. Reference numeral 33 denotes a first guide plate, which is the air supply casing 30.
The back portion of the heat exchanger 16 side is integrally formed in an inclined shape with the center of the air supply casing 30 lower than the indoor suction portion 32 in the lateral direction. Reference numeral 34 denotes a first partition plate which is provided so as to project from the lower portion of the first guide plate at a right angle and integrally, and 35 is a second partition plate formed integrally in parallel at the back of the indoor blowout portion 31 of the air supply casing 30. Is a guide plate, 36 is a second partition plate which projects at a right angle from the lower portion of the second guide plate and integrally projects with it, and 37 is an exhaust casing made of, for example, styrofoam, one of which is connected to the outdoor outlet 11 and the other. An outdoor blow-out portion 38 that is communicated with the outdoor blow-out portion 38 and an outdoor suction portion 39 that is communicated with the outdoor-side suction port 9 are provided on the other side. Reference numeral 40 denotes a third guide plate, which has the same shape as the first guide plate 33 and is integrally formed in an inclined shape in which the center of the exhaust casing 37 is lower than the outdoor suction portion 39 in the lateral direction. Reference numeral 41 denotes a third partition plate which is formed at a right angle from the lower portion of the third guide plate and integrally projects. 42 is a fourth integrally formed in parallel at the back of the outdoor blowing portion 38.
Guide plate 43, a fourth partition plate 43 projecting at a right angle from the fourth guide plate, and 44 a separator, which is an upright surface 45 abutting against the end faces of the air supply and exhaust casings 30 and 37.
And a bottom face 46 that is connected to the bottom face at a right angle, and a separator guide plate 47 that is connected to both ends of the bottom face and has a slanted shape with the tip being high. The separator guide plate is the first to fourth partition plates 34, 36, 41, 43.
Is fitted to form a partition of the air supply / exhaust passage. A filter 48 is attached to the heat exchanger 16.

In the ventilation device with a heat exchanger constructed as described above, as shown in FIG. 7, the separator 44 is incorporated in each of the air supply and exhaust casings 30 and 37, and
And as shown in FIG. 4, it is installed in the box body 1 so as to face the side members 6 and 7. Further, other parts are installed in the same manner as the conventional example. Then, by operating the exhaust blower 14 and the air supply blower 15, the indoor air is sucked into the box body 1 from the indoor side intake port 8 as shown by the arrow A, and the heat exchanger 16 in the exhaust passage 12 is removed. Then, the air is blown out from the outdoor air outlet 11 as indicated by the arrow B and discharged to the outside of the room. On the other hand, the outdoor air is sucked into the box body 1 from the outdoor suction port 9 as shown by the arrow C, and the heat exchanger 1 in the air supply passage 13 is
After passing through 6, the air is blown out from the indoor side outlet 10 as shown by the arrow D and is supplied to the room. At this time, heat exchange is performed in the heat exchanger 16 between the exhaust air flow and the supply air flow, and the exhaust heat is recovered to reduce the heating and cooling load. In this case, the air from the inside and the outside of the room can flow from the first guide plate to the fourth guide plates 33, 35, 40,
42 and the first partition plate to the fourth partition plates 34, 36, 4
The pressure loss is reduced by being guided by Nos. 1 and 43 and smoothly flows through the main body 1 and is discharged. Furthermore, since the air flow is gradually expanded by the separator guide plate 47 provided in the separator 44, the pressure loss is reduced, and each blower 1
Air flows smoothly due to Nos. 4 and 15.

[0011]

As described above, according to the present invention, there are provided a box body provided with one set of suction port and one set of blowout port on each of the indoor side and the outdoor side, and the suction port and the blowout port in the box body. The air supply passage and the exhaust passage extending from the indoor side to the outdoor side, which are provided so as to intersect each other, and the air supply passage and the exhaust passage, and the air supply passage and the exhaust passage are partially integrated. A blower including a formed casing and a blower, a separator that is mounted on the casing of the blower and separates the air supply passage and the exhaust passage, and heat that exchanges heat between the air supply flow and the exhaust flow. In the one provided with an exchanger, since the guide plates for the air supply flow and the exhaust flow are integrally formed in the casing and the separator, pressure loss in the air supply passage and the exhaust passage is reduced by the guide plate, and more air is blown. sex There is improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention with a top member removed.

FIG. 2 is a plane sectional principle view showing an embodiment of the present invention.

FIG. 3 is a side sectional principle view showing one embodiment of the present invention.

FIG. 4 is an exploded perspective view showing an embodiment of the present invention.

FIG. 5 is a perspective view of a casing showing an embodiment of the present invention.

FIG. 6 is a perspective view of a separator according to an embodiment of the present invention.

FIG. 7 is a perspective view of a casing incorporating a separator according to an embodiment of the present invention.

FIG. 8 is a perspective view showing a conventional ventilation device with a heat exchanger, with an upper surface member removed.

FIG. 9 is an exploded perspective view showing a conventional ventilation device with a heat exchanger.

[Explanation of symbols]

 1 Box Body 8 Indoor-side Suction Port 9 Outdoor-side Suction Port 10 Indoor-side Air Outlet 11 Outdoor-side Air Outlet 12 Exhaust Passage 13 Air Supply Passage 14 Axial Flow Blower 15 Axial Flow Blower 30 Air Supply Casing 33 First Guide Plate 35 Second guide plate 37 Exhaust casing 40 Third guide plate 42 Fourth guide plate 44 Separator 47 Separator guide plate

Claims (1)

[Claims] 1. A box body having a pair of suction ports and a pair of air outlets on the indoor side and the outdoor side, respectively, and provided inside the box body so as to intersect between the suction port and the air outlet. The air supply passage and the exhaust passage extending from the indoor side to the outdoor side, and the casing and the air blower provided in the air supply passage and the exhaust passage, in which a part of the air supply passage and the exhaust passage are integrally formed. A blower comprising: a separator mounted on the casing of the blower, for separating the air supply passage and the exhaust passage; and a heat exchanger for exchanging heat between the air supply flow and the exhaust flow. A ventilation device with a heat exchanger, characterized in that guide plates for the air supply flow and the exhaust air flow are formed integrally with the casing and the separator.