JPH0593536A - Ventilating apparatus - Google Patents

Abstract

PURPOSE:To make it possible to complete in a short time both the discharge of foul air from a room and intake of fresh air into the room by providing a damper exclusively for the supply of air and a damper for an air-supply bypass, the former for effecting a shift in function from a passageway for exhaust to an auxiliary passageway for supply of air and the latter for switching to the passageway for exhaust the route of the supply of air from an outdoor side suction port to an outdoor side inlet. CONSTITUTION:An exhaust bypass damper 36 is closed and a damper 37 exclusively for exhaust is made to close an indoor side outlet 3. Furthermore an air-supply bypass damper 33 is opened and an outdoor side suction port 5 is closed. Then an air-supply blower 10 and an exhaust blower 15 are set operating. As a result, the indoor air passes through a passageway 8 for exhaust and is discharged as a flow of exhaust air A to the outdoors by the exhaust blower 15 within a short time. To take in fresh outdoor air within a short time, an air-supply bypass damper 33 is closed. By turning a damper exclusively for air supply 34 an outdoor outlet 6 is closed and furthermore an exhaust bypass damper 36 is opened. Then both the air-supply blower 10 and the exhaust blower 15 are set operating. As a result, the outdoor air passes through a passageway 9 for air supply and is sent indoors as a flow of supplied air B by the air-supply blower 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceiling-embedded ventilator that simultaneously supplies and exhausts air.

[0002]

2. Description of the Related Art FIGS. 15 to 17 show, for example, JP-A-1-31.
In the figure which shows the conventional ventilation device shown in the 8841 publication,
FIG. 15 is a perspective view showing a state in which the lid is removed, FIG. 16 is a plan view showing the flow of wind, and FIG. 17 is a front sectional view of the same. In the figure, 1 is a box body, 2 and 3 are indoor suction ports provided on the indoor side 4 of the box body, indoor air outlets, and 5 and 6 are chambers provided on the outdoor side 7 of the box body 1. An outer suction port, an outdoor air outlet, 8 is an exhaust passage that connects the indoor suction port 2 and the outdoor air outlet 6 in the box body 1, and 9 is also the outdoor side in the box body 1. Suction port 5 and indoor air outlet 3 above
An air supply passage 10 connecting with the air supply passage 10 is an air supply blower provided on the air supply passage, and one of the opposite side walls 11 of the box body 1 is partitioned by a partition wall 12 and is not shown in the side wall 11. The electric motor 14 is installed in the casing 13 whose suction ports are opposed to each other.
And an impeller (not shown) is provided. Reference numeral 15 denotes an exhaust blower provided on the exhaust passage 8, and the electric motor 14 and the impeller 16 are provided in a casing 13 whose suction port is opposed to the side wall 11 via the partition wall 12 on the other side of the side wall 11. It is provided. Reference numeral 17 is a heat exchanger, which is an opposing partition wall 1.
It is installed between two and is located at the intersection of the exhaust passage 8 and the air supply passage 9. A normal ventilation passage 18 is provided in parallel with the exhaust passage 8 and bypasses the heat exchanger 17,
And has an inlet 19 and an outlet 20. 21 is a ventilation switching damper provided at the entrance 19 of this ordinary ventilation passage,
The arm 22 is provided so as to seal the inside of the ordinary ventilation passage 18 by sliding.
It is driven by the geared motor 23 via. Reference numeral 24 denotes an inspection port, which is opened at a position of the side wall 11 of the box body 1 facing the end of the partition wall 12 and has an inspection lid 25. The air supply blower 10, the exhaust air blower 15, and the heat exchanger. 17
It is used for maintenance. Reference numeral 26 denotes an inverter adjacent to the inspection port, which drives the air supply blower 10 and the exhaust blower 15. 27 is a control board for controlling the inverter and the geared motor 23.
It is covered with a protective cover 28. A and B are exhaust flow 2
9 shows the air supply flow 30.

A conventional ventilator is constructed as described above,
When the exhaust blower 15 is operated, the indoor air is sucked from the indoor suction port 2, passes through the heat exchanger 17 from the exhaust passage 8, and becomes the exhaust flow 29 exhausted to the outside from the outdoor outlet 6. On the other hand, when the air supply blower 10 is operated, the outdoor air is sucked in through the outdoor air inlet 5, passes through the heat exchanger 17 through the air supply passage 9, and is heat-exchanged with the exhaust flow 29, where the indoor air outlet 3 The airflow 30 is supplied from the inside to the room. In this case, the exhaust and supply air blowers 15, 10 are capacity-controlled by the inverter 26 and the control board 27, and the exhaust air amount and the supply air amount are adjusted. The control board 27 also controls the geared motor 23 and switches the ventilation switching damper 21 so that the room air does not pass through the heat exchanger 17 and the ordinary ventilation passage 18
Normal ventilation operation is performed to exhaust through.

[0004]

The conventional ventilation device as described above has a simultaneous air supply / exhaust structure in which the air supply blower 10 and the exhaust air blower 15 are simultaneously operated. When taking in fresh air into the room, there is a problem that ventilation for a long time is required and it is not possible to respond in a short time.

Further, a plurality of blowers, that is, the blower 10 for supply air and the blower 15 for exhaust must be controlled by one inverter 26, and in a situation where it is necessary to maintain the supply / exhaust balance, the passage pressure loss. There was a problem that the difference in air volume between the exhaust flow and the supply air flow was caused by the difference.

The present invention has been made in order to solve the problems involved, and can remove hot air from the room, remove contaminated air, and take in fresh air into the room in a short time.
It is an object of the present invention to obtain a ventilation device in which there is no difference in air flow between the exhaust flow and the supply air flow.

[0007]

A ventilator according to the present invention comprises a box body having an indoor side inlet and an indoor side outlet on the indoor side and an outdoor side inlet and an outdoor side outlet on the outdoor side. An exhaust passage provided in the box body for communicating the indoor side inlet and the outdoor side outlet, an air supply passage communicating with the outdoor side inlet and the indoor side outlet, and provided on the air supply passage An air supply blower and an exhaust air blower provided on the exhaust passage, and a heat exchanger provided at the intersection of the air supply passage and the passage, the indoor blower outlet having an indoor blower outlet. An exhaust-only damper that closes the air supply passage to an auxiliary exhaust passage and an exhaust bypass damper that changes the exhaust flow from the indoor suction port to the air supply passage are provided in the indoor suction port, and the outdoor blowing The outdoor air outlet is blocked at the outlet, and the above exhaust passage is supplemented. It is obtained by a charge air bypass damper for changing the supply air flow from the outdoor side suction opening to the air supply dedicated damper and the chamber outer suction port to change the passage to the exhaust passage.

Further, an ordinary ventilation passage is provided in the box body in parallel with the air supply passage and the exhaust passage to bypass the heat exchanger and communicate with the exhaust passage, and the ordinary ventilation passage is connected to the exhaust passage. A wind pressure shutter is provided in the section.

[0009]

According to the present invention, a box body having an indoor side inlet and an indoor side outlet on the indoor side and an outdoor side inlet and an outdoor side outlet on the outdoor side, and the indoor side inlet provided in the box body. An exhaust passage communicating between the mouth and the outdoor outlet, an air supply passage communicating between the outdoor intake and the indoor outlet, and an air supply blower provided on the air passage and the exhaust passage. And a heat exchanger provided at the intersection of the air supply passage and the exhaust passage, and the indoor air outlet is closed to the indoor air outlet, and the air supply passage is supplementarily exhausted. A dedicated exhaust damper for changing to a passage and an exhaust bypass damper for changing the exhaust flow from the indoor suction port to the air supply passage are provided in the indoor suction port, and the outdoor air outlet is closed to the outdoor air outlet. Dedicated to supply air by changing the above exhaust passage to an auxiliary air supply passage By providing a damper and an air supply bypass damper for changing the air supply from the outdoor suction port to the exhaust passage, the air supply formed by the air blower and the air supply passage, It can be changed to an auxiliary exhaust flow that passes through an auxiliary exhaust passage newly formed by an exhaust dedicated damper and an exhaust bypass damper, or the exhaust flow formed by the exhaust blower and the exhaust passage can be changed to a supply exclusive damper. With the air supply bypass damper, it is possible to change to the auxiliary air supply airflow that passes through the newly formed auxiliary air supply passage.

Further, an ordinary ventilation passage is provided in the box body in parallel with the air supply passage and the exhaust passage to bypass the heat exchanger and communicate with the exhaust passage, and the ordinary ventilation passage is connected to the exhaust passage. By providing the wind pressure shutter in the portion, the auxiliary air supply flow can pass through the newly formed auxiliary air supply passage without entering the ordinary ventilation passage.

[0011]

1 to 14 are views showing an embodiment of the present invention. In the drawings, 1 to 25 show the same or corresponding parts as in the conventional example, 30 is a control box, and the above is the box 1
Adjacent to the inspection port 24, it includes an inverter 31 and a control board 32. The inverter 31 and the control board 32 are a software system that individually controls the air supply blower 10 and the exhaust air blower 15. Reference numeral 33 is an air supply bypass damper, which is openably and closably provided with the one end of the partition wall 12 on the outdoor side facing the outdoor suction port 5 as an axis, and is taken in from the outdoor suction port 5 in the closed state. The supply airflow is sent to the exhaust blower 15, and at the same time, the exhaust flow flowing from the indoor suction port 2 to the heat exchanger 17 is shut off. Three
4 is a damper exclusively for supply of air, which is also rotatably provided on the partition wall 12 on the outdoor side 7 so as to face the outdoor side air outlet 6.
At the time of rotation, the outdoor air outlet 6 is closed and the air supply bypass damper 33 introduces the air supply air taken from the outdoor air intake 5 and sent from the exhaust blower 15 into the auxiliary air supply passage 35 provided on the exhaust passage 8. The air supply damper and the air supply bypass damper 33 are interlocked with each other, and the auxiliary air supply passage 35 is changed to an air supply passage in which the exhaust passage 8 is newly formed. Reference numeral 36 denotes an exhaust bypass damper which is openably and closably provided with one end as a shaft so as to face the indoor suction port 2 on the partition wall 12 on the outdoor side 4 and is taken in from the indoor suction port 2 in the closed state. The exhaust air flow is sent to the air supply blower 10, and at the same time, the air supply air flowing from the outdoor suction port 5 through the heat exchanger 17 is shut off. 37
Is an exhaust-exclusive damper, which is also rotatably provided by a partition wall 12 on the indoor side 4 so as to face the indoor-side air outlet 3, and closes the indoor-side air outlet 3 at the time of rotation by the exhaust bypass damper 36. The exhaust flow that is taken in through the suction port 2 and is blown from the air supply blower 10 is sent to the auxiliary exhaust passage 38 provided on the air supply passage 9. The exhaust dedicated damper and the exhaust bypass damper 36 are interlocked with each other, and the auxiliary exhaust passage 38 is changed to an exhaust passage in which the air supply passage 9 is newly formed. Reference numeral 39 is a wind pressure shutter, which is a connection portion 4 of the ordinary ventilation passage 18 with the exhaust passage 8.
No. 0, the supply airflow sent from the air supply dedicated damper 34 to the auxiliary air supply passage 35 is passed through the auxiliary air supply passage 35 without entering the normal ventilation passage 18. C is an auxiliary exhaust flow passing through the auxiliary exhaust passage 38, and D is an auxiliary supply airflow passing through the auxiliary supply passage 35.

In the ventilator constructed as described above, the exhaust blower as shown in FIG. 1 without operating the air supply bypass damper 33, the air supply damper 34, the exhaust bypass damper 36 and the exhaust gas damper 37. Simultaneous air supply and exhaust can be performed by exchanging heat between the exhaust air flow A by 15 and the air supply air B by the air supply blower 10. Further, the air supply air A by the exhaust air blower 15 is ventilated to the ordinary ventilation passage 18 by the ventilation switching damper 21. The exhaust flow A and the supply air B can be simultaneously supplied and discharged without heat exchange.

When the hot air and the polluted air on the indoor side 4 are to be exhausted and ventilated in a short time, the exhaust bypass damper 36 is closed as shown in FIG. The air supply bypass damper 33.
Open and close the outdoor suction port 5, then supply and exhaust blower 1
Drive 0 and 15. As a result, the air in the room passes through the exhaust passage 8 and is exhausted to the outside by the exhaust blower 15 as the exhaust flow A, and the auxiliary exhaust flow C formed by the exhaust bypass damper 36 and the exhaust dedicated damper 37 is supplied to the air supply blower 10. As a result, the air passes through the auxiliary exhaust passage 38 and is discharged from the outdoor-side suction port 5, so that a large amount of air can be ventilated exclusively for exhaust.

When fresh outdoor air is taken in in a short time, as shown in FIG. 3, the air supply bypass damper 33 is closed, the air supply dedicated damper 34 is rotated to close the outdoor air outlet 6, and the exhaust bypass is further provided. After opening the damper 36, the supply / exhaust blowers 10 and 15 are operated. As a result, the outdoor air passes through the air supply passage 9 and is supplied to the room as the air supply air B by the air supply blower 10, and the auxiliary air supply D formed by the air supply bypass damper 33 and the air supply dedicated damper 34. Is passed through the auxiliary air supply passage 35 by the exhaust blower 15 and is supplied to the room through the indoor suction port 2, so that a large amount of air can be ventilated exclusively for air supply. At this time, the auxiliary supply airflow D flowing from the exclusive supply air damper 34 smoothly passes through the auxiliary supply air passage 35 by the wind pressure shutter 39 without entering the normal ventilation passage 18.

Further, the inverter 31 in the control box 30 compensates for the difference in passage pressure loss between the exhaust passage 8 and the auxiliary exhaust passage 38 or the air supply passage 9 and the auxiliary air supply passage 35, and the exhaust blower 15 and the supply air blower 10. In order to control each of the above, the exhaust air flow A and the auxiliary exhaust air flow C have the same air volume, and the indoor air is uniformly discharged to the outside, or the air supply flow B and the auxiliary air supply D have the same air volume, and the outdoor air is even. Is supplied indoors.

[0016]

As described above, the present invention provides a box body having an indoor side inlet and an indoor side outlet on the indoor side and an outdoor side inlet and an outdoor side outlet on the outdoor side, and a box body provided inside the box body. And an air supply passage that communicates between the indoor suction port and the indoor air outlet, and an air supply passage that communicates between the outdoor air suction port and the indoor air outlet, and for air supply provided on the air supply passage. An exhaust blower provided on the blower and the exhaust passage, and a heat exchanger provided at the intersection of the air supply passage and the exhaust passage, and the indoor blowout port is closed to the indoor blowout port. An exhaust dedicated damper for changing the air supply passage to an auxiliary exhaust passage and an exhaust bypass damper for changing the exhaust flow from the indoor suction port to the air supply passage are provided at the indoor suction port, and at the outdoor outlet. The outdoor air outlet is closed and the exhaust passage is an auxiliary air supply passage. With the air supply damper to be changed and the air intake bypass damper for changing the air supply air flow from the outdoor air intake port to the exhaust passage, the air intake bypass damper and the air supply exclusive damper are Auxiliary air supply passage is formed, not only ventilation for simultaneous air supply and exhaust but also ventilation for large air supply can be done, and fresh outdoor air can be quickly supplied, and auxiliary exhaust by the exhaust bypass damper and exhaust exclusive damper. A passage is formed, which allows not only ventilation for simultaneous air supply and exhaust, but also ventilation for exclusive use of large air volume, and quick discharge of contaminated air and hot air. Further, the early discharge of indoor hot air can reduce the load on the air conditioner such as an air conditioner.

Further, an ordinary ventilation passage is provided in the box body in parallel with the air supply passage and the exhaust passage to bypass the heat exchanger and communicate with the exhaust passage, and the ordinary ventilation passage is connected to the exhaust passage. By providing a wind pressure shutter in the section,
Ventilation of the auxiliary air supply to the auxiliary air supply passage is facilitated, and the load on the exhaust blower can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention and showing a state in which a lid is removed when performing simultaneous air supply / exhaust.

FIG. 2 is a perspective view showing an embodiment of the present invention and showing a state in which a lid is removed when the blower performs only exhaust.

FIG. 3 is a perspective view showing an embodiment of the present invention and showing a state in which the lid body is removed when the blower performs only air supply.

FIG. 4 is a plan view showing an embodiment of the present invention and showing a flow of air when performing simultaneous air supply / exhaust while performing heat exchange between the exhaust air flow and the air supply flow.

5 is a front sectional view of FIG. 4 showing an embodiment of the present invention.

6 is a rear cross-sectional view of FIG. 4 showing an embodiment of the present invention.

FIG. 7 is a plan view showing an embodiment of the present invention and showing a flow of air when the exhaust flow and the supply air flow perform simultaneous air supply / exhaust without heat exchange.

8 is a rear cross-sectional view of FIG. 7 showing an embodiment of the present invention.

FIG. 9 is a plan view showing an embodiment of the present invention and showing a flow of air when the exhaust blower and the air supply blower simultaneously perform exhaust.

10 is a front sectional view of FIG. 9 showing an embodiment of the present invention.

11 is a rear cross-sectional view of FIG. 9 showing an embodiment of the present invention.

FIG. 12 is a plan view showing an embodiment of the present invention and showing a flow of air when simultaneous air supply is performed by both the exhaust blower and the air supply blower.

13 is a front sectional view of FIG. 12 showing an embodiment of the present invention.

14 is a rear cross-sectional view of FIG. 12 showing an embodiment of the present invention.

FIG. 15 is a perspective view showing a conventional ventilation device with a lid removed.

FIG. 16 is a plan view showing a conventional ventilation device and showing the flow of air in FIG. 15.

17 is a front cross-sectional view of FIG. 15 showing a conventional ventilation device.

[Explanation of symbols]

 1 box 2 indoor side suction port 3 indoor side outlet 4 indoor 5 outdoor side suction port 6 outdoor side air outlet 7 outdoor side 8 exhaust passage 9 air supply passage 10 air supply blower 15 exhaust air blower 17 heat exchanger 18 ordinary Ventilation passage 33 Air supply bypass damper 34 Air supply damper 35 Auxiliary air supply passage 36 Exhaust bypass damper 37 Exhaust exhaust damper 38 Auxiliary exhaust circuit 39 Wind pressure shutter 40 Connection part

Claims (2)

[Claims] 1. A box body having an indoor suction port and an indoor air outlet on the indoor side and an outdoor air suction port and an outdoor air blowing port on the outdoor side, and the indoor suction port and the chamber provided in the box. An exhaust passage that communicates with the outer outlet, an air supply passage that communicates with the outdoor inlet and the indoor outlet, and an air supply blower provided on the air supply passage and the exhaust passage. An exhaust blower, and a heat exchanger provided at the intersection of the air supply passage and the exhaust passage, and the indoor air outlet is closed to the indoor air outlet, and the air supply passage is changed to an auxiliary exhaust air passage. And an exhaust bypass damper for changing the exhaust flow from the indoor side intake port to the air supply passage in the indoor side intake port, and closing the outdoor side air outlet to the outdoor side air outlet, and the exhaust passage The air supply damper that changes the A ventilation device comprising: a side intake port; and an air supply bypass damper that changes an air supply flow from the outdoor side intake port to an exhaust passage. 2. A normal ventilation passage that is provided in parallel with the air supply passage and the exhaust passage in the box body to bypass the heat exchanger and communicates with the exhaust passage, and connects the normal ventilation passage to the exhaust passage. The ventilation device according to claim 1, wherein a wind pressure shutter is provided in the portion.