JP2586766B2 - Ventilation equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceiling-mounted ventilator for simultaneous supply and exhaust.

[0002]

2. Description of the Related Art FIGS.
FIG. 1 is a diagram showing a conventional ventilation device disclosed in JP-A-8841.
15 is a perspective view showing a state in which a lid is removed, FIG. 16 is a plan view showing a flow of wind, and FIG. 17 is a front sectional view of the same. In the figure, 1 is a box, 2 and 3 are indoor-side suction ports provided on the indoor side 4 of the box, and indoor-side outlets 5 and 6 are chambers provided on the outdoor side 7 of the box 1. An outside suction port and an outdoor air outlet 8 are an exhaust passage communicating the indoor air inlet 2 and the outdoor air outlet 6 inside the box 1, and 9 is an air outlet inside the box 1 similarly. Suction port 5 and indoor side outlet 3
Is an air supply blower provided on the air supply passage. One of the opposing side walls 11 of the box 1 is partitioned by a partition wall 12 and is not shown on the side wall 11. An electric motor 14 is provided in a casing 13 having a suction port opposed thereto.
And an impeller (not shown) are provided. Reference numeral 15 denotes an exhaust blower provided on the exhaust passage 8, and an electric motor 14 and an impeller 16 are provided in a casing 13 having a suction port opposed to the side wall 11 via a partition wall 12 on the other side of the side wall 11. Is provided. Reference numeral 17 denotes a heat exchanger, which is a partition wall 1 facing the heat exchanger.
2 and located at the intersection of the exhaust passage 8 and the air supply passage 9. Reference numeral 18 denotes a normal ventilation passage, which is provided in parallel with the exhaust passage 8 and bypasses the heat exchanger 17.
And an inlet 19 and an outlet 20. Reference numeral 21 denotes a ventilation switching damper provided at the entrance 19 of the ordinary ventilation passage.
An arm 22 is provided to seal the inside of the normal ventilation passage 18 by sliding.
Is driven by a geared motor 23 via the. Reference numeral 24 denotes an inspection port, which is opened at a portion of the side wall 11 of the box 1 facing the end of the partition wall 12 and has an inspection lid 25, and has the inspection air supply fan 10, the exhaust air fan 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 supply air flow 30.

[0003] A conventional ventilator is constructed as described above,
When the exhaust blower 15 is operated, the indoor air is sucked from the indoor-side suction port 2, passes through the heat exchanger 17 from the exhaust passage 8, and becomes an exhaust stream 29 exhausted from the outdoor-side outlet 6 to the outside. On the other hand, when the air supply blower 10 is operated, outdoor air is sucked in from the outdoor air inlet 5, passes through the heat exchanger 17 from the air supply passage 9, and is heat-exchanged with the exhaust stream 29 here, and is exchanged with the indoor air outlet 3. A supply air flow 30 is supplied from the air to the room. In this case, the capacity of the exhaust and supply air blowers 15, 10 is 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, switches the ventilation switching damper 21, and allows the normal ventilation passage 18 without passing indoor air through the heat exchanger 17.
A normal ventilation operation of exhausting air through is performed.

[0004]

In the conventional ventilating apparatus described above, the air supply blower 10 and the exhaust blower 15 are operated at the same time. When taking in fresh air into a room, there is a problem that long-time ventilation is required and it is not possible to respond in a short time.

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

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and can remove hot air from a room, polluted air, and fresh air into a room in a short time.
It is an object of the present invention to provide a ventilation device that does not generate a difference in air volume between an exhaust gas flow and a supply air flow.

[0007]

A ventilating apparatus according to the present invention includes a box body provided with an indoor-side suction port and an indoor-side air outlet on the indoor side and an outdoor-side air inlet and an outdoor-side air outlet on the outdoor side. An exhaust passage provided in the box body and connecting the indoor-side suction port and the outdoor-side outlet, an air supply passage connecting the outdoor-side intake and the indoor-side outlet, and a supply passage provided on the air supply passage. An air blower, an exhaust blower provided on the exhaust passage, and a heat exchanger provided at an intersection of the air supply passage and the exhaust passage, wherein the indoor-side suction port and the air supply blower are provided. An exhaust bypass damper that switches the air intake of the air supply and the air intake of the air supply blower from the air outlet of the air supply blower to the indoor side air outlet and the air blower of the air supply blower. Communicates with the exhaust passage to the heat exchanger Is obtained and an exhaust exclusive damper for switching. Further, a box body provided with an indoor-side suction port and an indoor-side air outlet on the indoor side, an outdoor-side suction port and an outdoor-side air outlet on the outdoor side, and the indoor-side suction port and the outdoor-side air outlet provided in the box body , An air supply passage communicating between the outdoor-side suction port and the indoor-side air outlet, an air supply fan provided on the air supply passage, and an exhaust air blower provided on the exhaust passage A heat exchanger provided at an intersection of the air supply passage and the exhaust passage, and an air supply bypass damper for switching the outdoor-side intake port and the air intake of the exhaust blower to communicate with each other; A dedicated air supply that shuts off an exhaust passage from the air blower outlet of the exhaust blower to the outdoor blower outlet and switches a communication state between the air blower outlet of the exhaust blower and the air supply passage leading to the heat exchanger. It is provided with a damper.

[0008] Further, a normal ventilation passage is provided in the box body in parallel with the air supply passage and the exhaust passage, bypasses the heat exchanger and communicates with the exhaust passage, and connects the normal ventilation passage to the exhaust passage. A wind pressure shutter is provided in the section.

[0009]

In the present invention, the air supply blower and a part of the air supply passage are used as the auxiliary exhaust passage by the exhaust exclusive damper and the exhaust bypass damper. In addition, the exhaust blower and a part of the exhaust passage are used as auxiliary air supply passages by the air supply dedicated damper and the air supply bypass damper.

[0010] Further, a normal ventilation passage is provided in the box body in parallel with the air supply passage and the exhaust passage, bypasses the heat exchanger, and communicates with the exhaust passage, and connects the normal ventilation passage to the exhaust passage. By providing a wind pressure shutter in the section, 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 show one embodiment of the present invention. In the drawings, reference numerals 1 to 25 denote the same or corresponding parts as in the above-mentioned conventional example, 30 denotes a control box, and the above-described box 1
And an inverter 31 and a control board 32 adjacent to the inspection port 24. The inverter 31 and the control board 32 constitute a software system for individually controlling the air blower 10 and the exhaust blower 15. Reference numeral 33 denotes an air supply bypass damper, which is openable and closable around one end as an axis so as to face the outdoor suction port 5 at the outdoor partition wall 12, and in a closed state, the outdoor suction port 5 and the exhaust blower. Fifteen
Is communicated with the air intake port, and the supply air flow introduced from the outdoor-side intake port 5 is sent to the exhaust blower 15, and at the same time, the exhaust flow flowing from the indoor-side intake port 2 to the heat exchanger 17 is shut off. Numeral 34 denotes an air supply exclusive damper, which is rotatably provided on the partition wall 12 of the outdoor side 7 so as to face the outdoor side air outlet 6 and closes the outdoor side air outlet 6 at the time of rotation. An air supply flow that is taken in from the outside suction port 5 and is blown from an air outlet of the exhaust blower 15 is sent to an auxiliary air supply passage 35 provided on the exhaust passage 8. The air supply dedicated damper 34 and the air supply bypass damper 33 are interlocked, and the auxiliary air supply passage 35 is changed from an air supply passage in which the exhaust passage 8 is newly formed. Reference numeral 36 denotes an exhaust bypass damper, which is provided on the partition wall 12 of the outdoor side 4 so as to be openable and closable around one end so as to face the indoor side intake port 2 and is used to supply air to the indoor side intake port 2 in a closed state. The air intake of the blower 10 is communicated with the air intake, and the exhaust flow taken in from the indoor side intake port 2 is sent to the air supply blower 10, and at the same time, the supply air flow flowing from the outdoor side intake port 5 through the heat exchanger 17 is cut off. I do. Reference numeral 37 denotes an exhaust-only damper, which is also rotatably provided at the partition wall 12 on the indoor side 4 so as to face the indoor-side outlet 3 and closes the indoor-side outlet 3 during rotation by the exhaust bypass damper 36. Exhaust air that is taken in from the inner suction port 2 and blown from the air outlet of the air supply blower 10 is supplied to the air supply passage 9.
It is sent to the auxiliary exhaust passage 38 provided above. The exhaust-only damper 37 and the exhaust bypass damper 36 are linked, 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 denotes a wind pressure shutter, which is provided at a connection portion 40 of the ordinary ventilation passage 18 with the exhaust passage 8, and in which the supply air flow sent from the supply exclusive damper 34 to the auxiliary supply passage 35 enters the ordinary ventilation passage 18. Without passing through the auxiliary air supply passage 35. C is an auxiliary exhaust flow passing through the auxiliary exhaust passage 38, and D is an auxiliary supply flow passing through the auxiliary supply passage 35.

In the ventilation device configured as described above, the exhaust air blower 33, the air supply exclusive damper 34, the exhaust bypass damper 36, and the exhaust exclusive damper 37 do not operate, as shown in FIG. Simultaneous air supply and exhaust can be performed by exchanging heat between the exhaust air flow A by the air blower 15 and the air supply flow B by the air supply blower 10. In addition, the exhaust flow A and the supply air flow B can be simultaneously supplied and discharged without heat exchange.

When the hot air and the contaminated air in 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. And the air supply bypass damper 33
To open and close the outdoor air inlet 5, and then supply and exhaust air blower 1
Drive 0,15. As a result, the indoor air passes through the exhaust passage 8 and is exhausted to the outside by the exhaust blower 15 as the exhaust air flow A, and the auxiliary exhaust air flow C formed by the exhaust bypass damper 36 and the exhaust-only damper 37 is supplied to the air blower 10. As a result, the air passes through the auxiliary exhaust passage 38, is discharged from the outdoor-side suction port 5, and can be used for ventilation dedicated to exhausting a large amount of air.

To take in fresh outdoor air in a short time, the air supply bypass damper 33 is closed as shown in FIG. 3, the air supply exclusive damper 34 is rotated to close the outdoor air outlet 6, and the exhaust air bypass 6 is further removed. After the damper 36 is opened, the supply and exhaust blowers 10 and 15 are operated. Thus, the outdoor air passes through the air supply passage 9 and is supplied to the room by the air supply blower 10 as the air supply flow B, and the auxiliary air flow 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 into the room from the indoor side suction port 2, so that ventilation dedicated to supply of a large air volume can be performed. At this time, the auxiliary air supply flow D flowing from the air supply exclusive damper 34 smoothly passes through the auxiliary air supply passage 35 without entering the ordinary ventilation passage 18 by the wind pressure shutter 39.

Further, an inverter 31 in the control box 30 compensates for a difference in passage pressure loss between the exhaust passage 8 and the auxiliary exhaust passage 38 or between the air supply passage 9 and the auxiliary air supply passage 35. In this case, the exhaust air flow A and the auxiliary exhaust air flow C have the same air volume and the indoor air is uniformly discharged outside the room, or the supply air flow B and the auxiliary air flow D have the same air flow and the outdoor air becomes uniform. Is supplied indoors.

[0016]

As described above, the present invention provides a box body provided with an indoor-side suction port and an indoor-side air outlet on the indoor side, and an outdoor-side suction port and an outdoor-side air outlet on the outdoor side, and provided in the box body. An exhaust passage communicating between the indoor suction port and the outdoor air outlet, an air supply passage communicating the outdoor air suction port with the indoor air outlet, and an air blower provided on the air supply passage. An exhaust blower provided on the exhaust passage,
An exhaust bypass damper that includes a heat exchanger provided at an intersection of the air supply passage and the exhaust passage, and that switches between the indoor side suction port and the air intake of the air supply blower in a communicating state; An exhaust damper that shuts off an air supply passage from an air outlet of the air blower to the indoor air outlet and switches a communication state between the air outlet of the air blower and the exhaust passage to the heat exchanger; With the exhaust bypass damper and the exhaust-only damper, an auxiliary exhaust passage is formed to allow simultaneous exhaust / exhaust ventilation as well as large-volume exhaust-only ventilation, thereby eliminating indoor polluted air and hot air. I can do it quickly. Further, an effect is obtained that the load on an air conditioner such as an air conditioner can be reduced by early discharge of indoor hot air. Also, on the indoor side, the indoor side intake port and the indoor side outlet,
A box provided with an outdoor-side suction port and an outdoor-side air outlet on the outdoor side; an exhaust passage provided in the box body and communicating the indoor-side suction port with the outdoor-side air outlet; an outdoor-side suction port; An air supply passage communicating with the outlet; an air supply blower provided on the air supply passage and an exhaust air blower provided on the exhaust passage; and an air supply passage provided at an intersection of the air supply passage and the exhaust passage. Provided with a heat exchanger, an air supply bypass damper for switching the outdoor air inlet and the air intake of the exhaust blower into a communicating state, and from the air blower outlet of the exhaust blower to the outdoor blower outlet. And an air supply outlet damper for switching off an air outlet of the exhaust blower and the air supply passage leading to the heat exchanger. Auxiliary air supply passage with damper Formed and can ventilation air supply dedicated amount large air well ventilated the hourly exhaust, the effect is obtained that the supply of the outdoor fresh air to quickly.

[0017] Further, a normal ventilation passage is provided in the box body in parallel with the air supply passage and the exhaust passage, bypasses the heat exchanger, and communicates with the exhaust passage, and connects the normal ventilation passage to the exhaust passage. Since the wind pressure shutter is provided in the section,
The ventilation of the auxiliary air flow into the auxiliary air supply passage is facilitated, and the load on the exhaust blower can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention and showing a state in which a cover is removed when simultaneous supply and exhaust are performed.

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

FIG. 3 is a perspective view showing one embodiment of the present invention and showing a state where a cover is removed when a blower performs only air supply.

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

5 shows an embodiment of the present invention and is a front sectional view of FIG.

6 shows an embodiment of the present invention and is a rear sectional view of FIG.

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

8 shows one embodiment of the present invention, and is a rear sectional view of FIG.

FIG. 9 shows one embodiment of the present invention, and is a plan view showing the flow of air when both the exhaust blower and the air supply blower perform simultaneous exhaustion.

FIG. 10 shows an embodiment of the present invention, and is a front sectional view of FIG. 9;

FIG. 11 shows an embodiment of the present invention and is a rear sectional view of FIG. 9;

FIG. 12 shows an embodiment of the present invention, and is a plan view showing the flow of wind when simultaneous exhaust is supplied to both the exhaust blower and the air supply blower.

13 shows an embodiment of the present invention and is a front sectional view of FIG.

14 shows an embodiment of the present invention and is a rear sectional view of FIG.

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 a flow of wind in FIG.

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

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Box body 2 Indoor suction port 3 Indoor air outlet 4 Indoor 5 Outdoor air inlet 6 Outdoor air outlet 7 Outdoor 8 Exhaust passage 9 Air supply passage 10 Air blower 15 Exhaust air blower 17 Heat exchanger 18 Normal Ventilation passage 33 Air supply bypass damper 34 Air supply exclusive damper 35 Auxiliary air supply passage 36 Exhaust bypass damper 37 Exhaust exclusive damper 38 Auxiliary exhaust circuit 39 Wind pressure shutter 40 Connection

Claims (3)

(57) [Claims] 1. A box body provided with an indoor side suction port and an indoor side air outlet on the indoor side, an outdoor side air inlet and an outdoor side air outlet on the outdoor side, and the indoor side air inlet and the room provided inside the box body. An exhaust passage communicating with the outside air outlet, an air supply passage communicating the outdoor air inlet with the indoor air outlet, an air supply blower provided on the air supply passage, and an air supply blower provided on the exhaust gas passage; An exhaust blower comprising: an exhaust blower; and a heat exchanger provided at an intersection of the air supply passage and the exhaust passage, the exhaust bypass switching the communication between the indoor suction port and the air intake of the air supply blower. A damper is connected to the air passage of the air supply blower from the air outlet of the air supply blower to the indoor side air outlet, and the air passage of the air supply blower is connected to the exhaust passage to the heat exchanger. With a dedicated exhaust damper to switch to Features ventilation equipment. 2. A box body provided with an indoor-side suction port and an indoor-side air outlet on the indoor side, an outdoor-side suction port and an outdoor-side air outlet on the outdoor side, and the indoor-side air inlet and the chamber provided in the box body. An exhaust passage communicating with the outside air outlet, an air supply passage communicating the outdoor air inlet with the indoor air outlet, an air supply blower provided on the air supply passage, and an air supply blower provided on the exhaust gas passage; An air supply bypass, comprising: an exhaust blower; and a heat exchanger provided at an intersection of the air supply passage and the exhaust passage, wherein the air supply bypass switches between the outdoor-side suction port and the air intake of the exhaust blower to communicate with each other. The damper and an exhaust passage from the air outlet of the exhaust blower to the outdoor outlet are shut off, and the air blower of the exhaust blower and the air supply passage leading to the heat exchanger are switched to a communicating state. That a damper dedicated to air supply is provided. Features ventilation equipment. 3. A normal ventilation passage which is provided in the box body and is arranged in parallel with the air supply passage and the exhaust passage, bypasses 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 or 2, wherein a wind pressure shutter is provided in the portion.