JPS6212194Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a ventilation device having a heat exchange function.

With a general ventilation system, when the indoor air is ventilated when heating the room, for example, the cold air from outside flows into the room, and at the same time, the warm air from inside the room flows out, causing the indoor temperature to drop rapidly. The disadvantage is that energy must be added to return the room temperature to the pre-ventilation temperature without compromising comfort. In order to eliminate this inconvenience,
As a ventilation system equipped with a heat exchange function, a rotary regenerative heat exchanger (1986-
No. 2769) has already been proposed. That is, a heat storage rotor 2' is rotatably provided inside a multi-blade impeller 1',
In this heat storage rotor 2', semicircular blind plates 4' and 5' are installed at opposite ends of the partition plate 3', and these semicircular blind plates 4' and 5' allow air of different temperatures to be separated. It is configured to form a flow and cause the air to flow in different directions through the circumferentially partitioned casings 6', 6'. In this case, air flows from the intake/exhaust outlet 7', 8' side through the gaps S', S' between the tongues 6'a, 6'a of the casings 6', 6' and the multi-blade impeller 1'. Stream A′, part a′ of B′,
Since b' is bypassed, there is a problem that both ventilation capacity and heat exchange efficiency are reduced.

In view of the above-mentioned problems, the present invention aims to improve ventilation capacity and heat exchange efficiency by preventing mutual bypass of intake and exhaust air.To achieve this purpose, radial partition plates are In the casing, the casing has an intake outlet passage leading to the indoor side and an exhaust outlet passage leading to the outdoor side, which are divided in parallel by
A two-stage impeller including an intake impeller corresponding to the intake air outflow passage and an exhaust impeller corresponding to the exhaust air outflow passage are arranged in series in the axial direction, and the two-stage impeller is rotatably disposed, and the two-stage impeller is rotatably arranged. A ventilable heat storage element is provided at an intermediate location between the intake impeller and the exhaust impeller around the rotation axis, and a heat storage element is provided on the opposite side of the intake impeller and the exhaust impeller with respect to the heat storage element. , an intake air inflow passage leading to the outdoor side and an exhaust air inflow passage leading to the indoor side are provided alternately in the circumferential direction, and the intake air inflow passage and the exhaust air inflow passage are connected to the intake impeller and the exhaust air impeller via the heat storage element. It is characterized in that the intake flow and exhaust flow are completely separated by being able to communicate with the vehicle separately.

Hereinafter, a ventilation system according to an embodiment of the present invention will be explained with reference to FIGS. 3 to 6.

This ventilation device is composed of a casing 1 having an intake air outflow passage 5 leading to the inside of the room and an exhaust air outflow passage 6 leading to the outside of the room, a two-stage impeller 2 arranged within the casing 1, a disk-shaped heat storage element 3 arranged around the rotating shaft 7 of the two-stage impeller 2, and a motor 4 which is the drive source for the two-stage impeller 2.

A wind guide case 8 is provided on the opposite side of the air intake/outflow passage 5 of the exhaust air outflow passage 6 in the casing 1, which also serves as a mounting base for the wall W of the ventilation system (see FIGS. 3 and 4). In the wind guide case 8, an intake passage 9 and an exhaust passage 10 are defined at the center and the periphery, respectively (third and fourth
(see figure). The intake passage 9 and the exhaust passage 10 are both communicated with the outside via an intake pipe 11 and an exhaust pipe 12 that penetrate the wall W surface, respectively.

Further, the intake air outlet passage 5 and the exhaust air outlet passage 6 in the casing 1 are divided in parallel in the axial direction by a radial partition plate 13, and the intake air outlet passage 5 is separated from the air intake outlet passage 5 by an air intake outlet 14 (see FIG. 5). The exhaust outlet passage 6 communicates with the indoor side through the exhaust outlet 1.
5 (see Figure 6), exhaust passage 10 in the wind guide case 8
The exhaust pipe 12 communicates with the outside of the room.

The exhaust outlet 15 is formed by removing the discharge side portion of the wall that partitions the casing 1 and the wind guide case 8 so that the exhaust air B flows into the wind guide case 8.

The two-stage impeller 2 is constructed by connecting an intake impeller 2a and an exhaust impeller 2b in the direction of the rotation axis, and includes a support 1 fixed to the rotation axis 7 of the motor 4.
6, 16... (see FIG. 5) support the intermediate partition portion of the intake/exhaust impellers 2a, 2b.

The intake impeller 2a is made to correspond to the intake air outlet passage 5 of the casing 1, and the exhaust impeller 2a is made to correspond to the intake air outlet passage 5 of the casing 1.
b is made to correspond to the exhaust gas outflow passage 6 of the casing 1.

The heat storage element 3 is formed into a disk shape of a nonwoven fabric such as nylon fiber, foamed metal, a metal scrubber, or a breathable hygroscopic material such as Japanese paper, and is attached to supports 16, 16, etc. around the rotating shaft 7. On the other hand, the intake impeller 2a and the exhaust impeller 2b are fixed so as to be partitioned to allow ventilation.

On the opposite side of the intake impeller 2a and the exhaust impeller 2b with respect to the heat storage element 3, there are a pair of intake inflow passages 17, 17 (see FIGS. 4 and 6) and exhaust inflow passages 18, 18 each having a fan-shaped cross section.
(See Figs. 3 and 5) are provided in a state in which they are displaced from each other by 90 degrees in the circumferential direction. Note that the number of intake air inflow passages 17 and exhaust air inflow passages 18 is not limited to two.

Each of the intake air inflow passages 17 has an inlet 17 facing the air intake passage 9 in the wind guide case 8 so as to lead to the outdoor side.
a (see FIG. 4) is opened, and an outlet 17b is opened on the heat storage element 3 side. That is, the intake air A that has flowed into the intake air inflow passage 17 passes through the heat storage element 3 and is then discharged into the intake air outflow passage 5 by the intake impeller 2a.

On the other hand, each of the exhaust gas inflow passages 18 has an inlet 18a (see FIG. 3) opened toward the indoor side, and an outlet 18b opened toward the heat storage element 3 side. That is, the exhaust gas B that has flowed into the exhaust gas inflow passage 18 passes through the heat storage element 3 and is then discharged into the exhaust gas outflow passage 6 by the exhaust impeller 2b.

Therefore, in the heat storage element 3, the portion facing the exhaust gas inflow passage outlet 18b acts to absorb heat (or heat radiation), and the portion facing the exhaust gas inflow passage outlet 17b acts to absorb heat (or radiate heat).
By radiating (or absorbing) heat at the corresponding portion, heat exchange can be performed between the intake and exhaust ports A and B.

In addition, the motor 4 has a casing 1 and a wind guide case 8.
It is clamped and fixed between the center part.

Next, the operation of the ventilation system according to the embodiment of the present invention will be explained.

When the two-stage impeller 2 is rotated by the motor 4 during ventilation during heating, the cold outdoor intake air A passes through the intake pipe 11 and the intake passage 10 in the wind guide case 8, and then flows into the intake inflow passage 17, 17, and further passes through the heat storage element 3, the intake impeller 2a, and the intake air outlet passage 5 in the casing 1, and then flows into the intake air outlet 14.
leaked into the room.

On the other hand, the indoor warm exhaust air B flows through the exhaust inlet passage 1
8, 18, the heat storage element 3, the exhaust outlet passage 6 in the casing 1, the exhaust outlet 15,
The air is then discharged outdoors from an exhaust pipe 12 through an exhaust path 10 in the wind guide case 8.

Thus, the outdoor cold intake air A that has flowed into the intake air inflow passage 17 absorbs heat when flowing through the heat storage element 3, becomes warm air, and flows into the room.
On the other hand, the warm exhaust gas B that has flowed into the exhaust gas inflow passage 18 is deprived of heat as it flows through the heat storage element 3, cooled, and discharged outdoors as cold air.

At this time, within the casing 1, the circulation path of the intake air A and the circulation path of the exhaust air B are almost completely separated, and the intake air flowing through the intake air outlet passage 5 and the exhaust air outlet passage 6 on the discharge side of the two-stage impeller 2 is created. Since the exhaust gases A and B flow in parallel, there is no possibility of mutual bypass occurring between the intake and exhaust gases A and B.

Next, the effects of the ventilation system of the present invention are listed below.

That is, according to the present invention, (1) the above-mentioned air conditioner is installed in the casing 1 which has an intake outlet passage 5 communicating with the indoor side and an exhaust outlet passage 6 communicating with the outdoor side, which are divided in parallel by the radial partition plate 13; A two-stage impeller 2 including an intake impeller 2a corresponding to the intake air outflow passage 5 and an exhaust impeller 2b corresponding to the exhaust air outflow passage 6 are arranged in series in the axial direction, and is rotatably arranged. A ventilable heat storage element 3 is provided around the rotation axis 7 of the two-stage impeller 2 to partition an intermediate portion between the intake impeller 2a and the exhaust impeller 2b, and the front intake impeller 2a and On the opposite side of the exhaust impeller 2b, intake inflow passages 17 leading to the outdoor side and exhaust inflow passages 18 leading to the indoor side are provided alternately in the circumferential direction. Since the intake impeller 2a and the exhaust impeller 2b can be communicated with each other separately via the element 3, the intake air A flow path and the exhaust air B flow path are almost completely separated. , there is no possibility that the intake and exhaust air A and B will mutually bypass each other in the middle of the intake/exhaust flow path, and both the ventilation capacity and the heat exchange rate are improved. A two-stage impeller 2 is disposed in which an exhaust impeller 2a and an exhaust impeller 2b corresponding to the exhaust outflow passage 6 are connected in the axial direction. Since the ventilated heat storage element 3 is provided to partition the intermediate portion between the exhaust impeller 2a and the exhaust impeller 2b, the structure and assembly are significantly simplified, and the material selection of the heat storage element 3 can be made from hard or soft materials. There are practical effects such as, either one will be better.

[Brief explanation of the drawing]

Fig. 1 is a vertical cross-sectional view of a rotary regenerative heat exchanger which is a conventional ventilation system, Fig. 2 is a cross-sectional view of Fig. 1, and Fig. 3 is a cross-sectional plan view of a ventilation system according to an embodiment of the present invention. , FIG. 4 is a cross-sectional view taken from FIG. 3, FIG. 5 is a cross-sectional view taken from FIG. 3, and FIG. 6 is a cross-sectional view taken from FIG. 3. 1...Casing, 2...Two-stage impeller, 2a...
...Intake impeller, 2b...Exhaust impeller, 3...
Heat storage element, 5... Intake outflow passage, 6... Exhaust outflow passage, 7... Rotating shaft, 13... Partition plate, 1
7...Intake inflow passage, 18...Exhaust inflow passage.

Claims (1)

[Scope of utility model registration request] An intake vane corresponding to the intake air outflow passage 5 is provided in a casing 1 having a blow air outflow passage 5 communicating with the indoor side and an exhaust air outflow passage 6 communicating with the outdoor side, which are divided in parallel by a radial partition plate 13. A two-stage impeller 2, which is formed by axially arranging a wheel 2a and an exhaust impeller 2b corresponding to the exhaust outflow passage 6, is rotatably arranged, and the rotation axis 7 of the two-stage impeller 2 is rotatably arranged. is provided with a breathable heat storage element 3 that partitions an intermediate portion between the intake impeller 2a and the exhaust impeller 2b, and also includes a heat storage element 3 that partitions the intermediate portion between the intake impeller 2a and the exhaust impeller 2b.
On the opposite side, intake inflow passages 17 leading to the outdoor side and exhaust air inflow passages 18 leading to the indoor side are provided alternately in the circumferential direction, and furthermore, the intake air inflow passages 17 and the exhaust inflow passages 18 are connected through the heat storage element 3. A ventilation system characterized in that the intake impeller 2a and the exhaust impeller 2b can be communicated with each other separately.