JP2000088309A - Ventilating equipment used for both air supply and exhaust - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain ventilating equipment used for both air supply and exhaust which can ensure comfortableness of a living area in a large space and can suppress practically the occurrence of a load on an air conditioner due to generation of heat from a heating body in a space having the heating body and, moreover, which enables reduction of an installation space and can dispense with construction or regulation at the site. SOLUTION: Ventilating equipment 1 used for both air supply and exhaust is constituted by having a duct chamber 10 which has two opening parts 11 and 12 and an air sending passage 13 formed in a state of connecting the two opening parts 11 and 12, a fan 20 installed inside the duct chamber 10 in the state wherein the sides of inlet and outlet of air are made to communicate with the air sending passage 13 respectively and an air direction switching means 30 provided in the duct chamber 10 so that the air taken into the air sending passage 13 from one opening part 11 (12) may pass through the fan 20 and be exhausted from the other opening part 12 (11) and that the direction of the air in this air sending passage 13 can be switched over reversibly.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air supply / exhaust ventilator, and more particularly to an air supply / exhaust air ventilator used in a building having a space in which a heating element such as an air conditioner or OA equipment is installed.

[0002]

2. Description of the Related Art In recent years, many buildings have a large living space such as an atrium or an entrance hall. In such a space, even if an air conditioner 52 is provided at a substantially intermediate height position of the space 51 as shown in FIG. 4 and air conditioning is performed, warm air accumulates near the ceiling above the space 51 and cool air flows therethrough. Due to the nature of the air that accumulates near the floor, heating is not performed efficiently especially in winter,
During the summer months, only the feet tend to be too cold. Therefore, it is difficult to secure the comfort of the living area below the space 51.
In addition, since the thermostat is installed in the residential area, the air conditioner performs a full operation, particularly in winter, and energy is not effectively consumed.

[0003] In order to solve the above-mentioned problems, a system for forcibly circulating air in a large space has been studied. In this system, the inlet and outlet of the fan are each connected to the space using a blower tube, and the air in the space is forcibly exhausted by driving the fan, and the air is forced into the space from the fan. I am trying to supply. Further, a box-shaped switching unit having a damper therein is provided in the middle of the blower tube so that the direction of the air exhausted from the space and supplied to the space again can be switched. In addition, the fan, the switching unit, and the blower tube are each transported to the site, and are assembled and adjusted as a system for supplying and exhausting and circulating the air at the site.

On the other hand, in an office building or the like in recent years, as shown in FIG. 5, the amount of heat generated from the OA equipment 62 increases with the OA, which accounts for a considerable proportion of the load of the air conditioner in the space 61. , Causing an increase in air conditioning function. Therefore, in the tenant building, each time a tenant is replaced, air conditioners are removed or added as necessary. For this reason, the system including the fan, the switching unit, and the blower tube is applied to such a building to ventilate the space in which the OA device is installed and the outside air, thereby providing a heating element such as an OA device. Attempts have also been made to reduce the load on the air conditioner due to heat generated from the air conditioner.

[0005]

However, in the system for forcibly supplying and exhausting air in a large space to circulate or ventilate the outside air, a fan is provided outside the switching unit. Further, since the switching unit is provided in the middle of the air duct, the air duct is arranged outside the switching unit so as to connect the fan and the switching unit and further connect the switching unit and the space to be air-conditioned. Further, the connection position of the blower tube in the switching unit is limited due to the relationship with the damper provided inside the switching unit. As a result, a very large wasteful space is required for installation of the system, and there is a disadvantage that the system cannot be installed inconspicuously at any part of the building.

In the above system, a fan,
Since the switching unit and the air duct are transported and assembled for adjustment, it takes time to assemble and perform the adjustment on site, and there is a possibility that the degree of adjustment may vary.

Therefore, the comfort of the living area can be ensured in a large space, and the load on the air conditioner due to the heat generated by the heating element can be substantially suppressed in the space having the heating element, and the installation space can be reduced. There is an urgent need for the development of a supply / exhaust / ventilation device that can be installed and does not require on-site construction or adjustment.

[0008]

In order to solve the above-mentioned problems, a ventilation / supply / exhaust ventilator according to the present invention comprises two openings serving as an air intake / exhaust port, and the two openings therein. A duct chamber having an air blowing path formed in a state where the air is connected, a fan provided inside the duct chamber in a state where the air suction side and the air blowing side are respectively connected to the air blowing path, and two fans. Reversing the wind direction of the air that is taken into the air passage from one of the openings, passes through the fan, and is exhausted from the other opening, and is taken into the air passage and exhausted And a wind direction switching means provided in the duct chamber so as to be able to be selectively switched.

In the present invention, the air taken into the air passage from one of the two openings passes through the fan and is exhausted from the other opening by the wind direction switching means provided in the duct chamber. The direction of the air flow can be reversibly switched. For this reason, in a large space equipped with an air conditioner, if the upper part of the large space is connected to the one opening and the lower part of the large space is connected to the other opening, the lower part of the space in summer is Air from the upper part, exhaust the air taken into the space from the upper part and circulate the air, and in winter, take in the air from the upper part of the space and exhaust the air taken in from the lower part into the space to circulate the air. Becomes possible.

In a space provided with a heating element such as OA equipment, if the vicinity of the heating element in this space is connected to the one opening and the outside is connected to the other opening, heat is generated in summer. It becomes possible to locally exhaust the warmed air near the body to the outside, and to take in the outside air in winter and supply the taken outside air to the vicinity of the heating element to cool the outside air.

Further, in the apparatus of the present invention, a fan is provided inside the duct chamber having an air passage, and a wind direction switching means is provided in the duct chamber, and the duct chamber, the fan, and the wind direction switching means are integrally incorporated. Since it is a so-called unitized device, the size can be reduced. Therefore, an installation space is not required unlike the related art. In addition, since it is manufactured in advance in a factory or the like by unitization, construction and adjustment on site is unnecessary.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic diagram showing a configuration of an embodiment of a ventilation / supply / exhaust ventilation device according to the present invention.

As shown in FIG. 1, a ventilation / supply / ventilation device (hereinafter simply referred to as a ventilation device) 1 includes a duct chamber 10,
It comprises a fan 20 and a wind direction switching means 30. The duct chamber 10 has, for example, a box shape having two openings 11 and 12 serving as an air intake port and an air exhaust port, and an air blowing path 13 is formed in a state where the two openings 11 and 12 are connected inside. Is formed.

In the present embodiment, the air passage 13 is, for example,
As will be described later, the fan 20 installed inside the duct chamber 10 is formed in a substantially rectangular ring shape in cross section so as to surround the side circumference of the housing 21 of the fan 20. A projecting pipe 14 is formed in a state extending slightly outward from both ends of one side of the air passage 13,
Two openings 11 and 12 are provided at the tip. In addition, flanges 11a and 11a for connection with other ducts are provided on the periphery of the two openings 11 and 12, respectively.
12a is provided.

The fan 20 is installed inside the duct chamber 10 in a state where the air suction side and the air discharge side communicate with the air passage 13 respectively. Here, the fan 20 includes a housing 21 installed inside the duct chamber 10,
And a fan main body 22 provided in the housing 21. The housing 21 has an air inlet 21a and an air outlet 21b.
For example, it is formed in a substantially rectangular shape in a sectional view, and is installed in a state where the inside communicates with the air passage 13 through the suction port 21a. In addition, the suction port 21a and the outlet port 21b are respectively provided with two openings 1 in the air passage 13.
It is formed between 1 and 12. The fan body 22
For example, it is formed of a sirocco fan, and is provided so as to be connected to the air passage 13 through the outlet 21b and to blow air into the air passage 13 through the outlet 21b. The wind direction of the fan main body 22 is always constant.

In the present embodiment, the fan 20 composed of such a box-type sirocco fan has an outlet at a substantially intermediate position on one side of an air passage 13 having two openings 11 and 12 formed at both ends. 21b is formed, and the suction opening 21a is formed in a position opposite to the outlet 21b and the fan main body 22 on the other three sides of the air passage 13 connecting the two openings 11 and 12 with the suction opening 21a formed. ing.

In order to simplify the explanation, the air passage 13
Among them, a first air passage 13a is provided between the opening 11 and the suction port 21a, a second air passage 13b is provided between the opening 12 and the suction port 21a, and a third air passage 13b is provided between the opening 12 and the air outlet 21b. The air passage 13c, the space between the opening 11 and the outlet 21b is referred to as a third air passage 13d.

The wind direction switching means 30 has two openings 1
One of the openings 11 (12) out of the air passages 1 and 12
3 is reversibly switched so that the air taken into the air passage 3 passes through the fan 20 and is exhausted from the other opening 12 (11), and the air direction taken in and exhausted into the air passage 13 is reversibly changed. It is provided in the duct chamber 10 as possible. The wind direction switching unit 30 includes, for example, a plate-shaped first damper 31 and a second damper 32, a driving unit 33, and an operation unit 34.

The first damper 31 is provided in the air passage 13 near the suction port 21a of the fan 20. At this time, the first damper 31 connects the suction port 21a and, for example, the opening 11 of the two openings 11 and 12 via the first air passage 13a, and connects the second air passage 13b and the suction port 21a. From the shut-off state, the suction port 21a and the opening 12 are communicated via the second air passage 13b and
The air passage 13a and the suction port 21a are rotatably supported so as to be shut off.

On the other hand, the second damper 32 is provided in the air passage 13 near the outlet 21b of the fan 20. At this time, the second damper 32 connects the outlet 21b and, for example, the opening 12 of the two openings 11 and 12 via the third air passage 13c, and connects the fourth air passage 13d and the outlet 21b. From the shut-off state, the outlet 2
The first air passage 1b and the opening 11 are connected via a fourth air passage 13d and are rotatably supported so as to shut off the third air passage 13c and the outlet 21b. These first dampers 3
The first and second dampers 32 are linked by a drive unit 33 as described later.

The driving section 33 includes a first damper 31 and a second damper 31.
These are connected to the damper 32 and are driven in conjunction with each other. In the present embodiment, such a driving unit 33 includes:
For example, it is an interlocking gear composed of a combination of three gears 33a, 33b, 33c. That is, the gear 3
3a is connected via the same shaft as the first damper 31, the gear 33c is connected via the same shaft as the second damper 32, and a gear 33b is provided between the gears 33a and 33c. Therefore, the rotation directions of the gear 33a and the gear 33c are the same.

Therefore, when the first damper 31 is arranged so that the suction port 21a communicates with one of the two openings 11 and 12 (12), the second damper 31 is driven by the second damper 31. The first damper 31 and the second damper 32 are driven in conjunction with each other so that the damper 32 is arranged so as to connect the outlet 21b and the other opening 12 (11).

The operation unit 34 operates the drive unit 33 to
This is for switching between the damper 31 and the second damper 32. Here, the operation unit 34 is, for example, the driving unit 33
Is provided so as to be rotatable in a predetermined direction. The operation unit 34 is configured to perform the operation automatically or manually.

In the ventilator 1 configured as described above,
The arrangement of the first damper 31 and the second damper 32 is set as shown by the solid line in FIG.
And the opening 12 communicates with the outlet 21b of the fan 20. Then, when the fan main body 22 is operated in this state, air is taken into the first air passage 13a from the opening 11 as shown by the solid arrow. The taken air is sucked into the fan main body 22 through the suction port 21a, and is blown out from the fan main body 22 to the third air passage 13c through the blowout port 21b. Further, the air is exhausted from the opening 12 through the third air passage 13c.

The operation of the operation unit 34 causes the operation shown in FIG.
As shown by broken lines, the first damper 31 and the second damper 32
Is switched, the opening 12 communicates with the suction port 21 a of the fan 20, and the opening 11 communicates with the fan 20.
With the air outlet 21b. Then, when the fan main body 22 is operated in this state, air is taken into the second air passage 13b from the opening 12 as indicated by the dashed arrow. The taken air is sucked into the fan main body 22 through the suction port 21a, and is blown out from the fan main body 22 to the fourth air passage 13d through the blowout port 21b.
Further, the air is exhausted from the opening 11 through the fourth air passage 14d. As described above, according to the ventilator 1, the wind direction of the air taken into and exhausted from the air passage 13 can be reversibly switched.

Next, an application example of the ventilation device of the present invention will be described based on a case where the ventilation device 1 is applied to a building. FIG. 2 is an explanatory diagram illustrating a first application example of the ventilation device of the present invention, and is a diagram illustrating an example in which the ventilation device 1 of the embodiment is applied to a large space such as a stairwell. A building 5 having an air conditioner (AC) 52 as shown in FIG. 2 and having a large space 51 such as a stairwell air-conditioned by the air conditioner 52 as shown in FIG.
In the case of application to 0, one of the two openings 11 and 12, for example, the opening 12 is connected to the ceiling surface above the space 51 using the duct 53, and the other opening 11 is used for example using the duct 54. It is installed in the building 50 while being connected to the lower part of the side wall of the space 51.

In this building 50, a large space 51
The upper and lower floors 55 and 56 are formed in the height range of the space 51 adjacent to the space 51, and the ceiling back 57 of the floor 56 is provided at a substantially middle height of the space 51.
In addition, the ceiling back 57 is also a portion below the floor 55. The air conditioner 52 is installed above the ceiling 57 so as to be connected to the side wall of the space 51, and the ventilation device 1 of the present embodiment is installed.

In the summer, the first damper 31 is used.
Then, the fan 20 is operated with the second damper 32 in the state shown by the solid line in FIG. Then, as shown by a solid line arrow in FIG. 2, the ventilation device 1 takes in air from the lower part of the space 51 and exhausts the air from the ceiling surface into the space 51, and as a result, the air in the space 51 is exhausted from the lower part of the space 51. At the same time, the exhausted air is supplied from the ceiling side into the space 51 and circulates in the space 51.

In winter, the fan 20 is operated with the first damper 31 and the second damper 32 in the state shown by the broken lines in FIG. Then, as shown by a broken line arrow in FIG. 2, the ventilator 1 takes in air from the ceiling side of the space 51 and exhausts the air from the lower part of the space 51 into the space 51. While being exhausted from the side, the exhausted air is supplied into the space 51 from the lower part of the space 51 and circulates in the space 51.

Thus, by using the ventilator 1, air flows opposite to each other can be formed in the large space 51 in summer and winter.
The unevenness of the heat distribution generated in the space 51 in any of the winter seasons can be eliminated, and the comfort in the living area below the space 51 can be secured throughout the year.

In the ventilating apparatus 1, a fan 20 is provided inside the duct room 10, an air passage 13 is formed so as to surround a housing 21 of the fan 20, and a wind direction switching means 30 is provided in the duct room 10. Thus, the duct chamber 10, the fan 20, and the wind direction switching means 30 are integrated into a so-called unit. In addition, the wind direction switching means 30 uses the interlocking gear to connect the first damper 31 to the second damper 31.
Since it is configured to switch between the damper 32, the wind direction switching means 30 does not become large. Therefore,
Since the integration can be further promoted and the size can be extremely reduced, it can be installed in an inconspicuous place such as the ceiling 57 and in a limited small installation space.

Further, since it is manufactured in advance in a factory or the like by unitization, it is not necessary to perform assembling work and adjustment on site. Therefore, even when the ventilator 1 is used as described above, it can be installed in a short time, and it is possible to prevent the occurrence of a problem that the adjustment condition varies.

Next, a second application example of the ventilation device according to the present invention will be described. FIG. 3 is an explanatory diagram illustrating a second application example of the ventilation device of the present invention, and is a diagram illustrating an example in which the ventilation device 1 of the present embodiment is applied to a space having a heating element. Fig. 3
As shown in FIG. 7, when the present invention is applied to a building 60 having a space 61 provided with an OA device 62 as a heating element, one of the two openings 11 and 12, for example,
3 and the OA equipment 62 on the ceiling above the space 61
It is installed in the building 60 in a state where it is connected to the vicinity and the other opening 12 is connected to the outside using, for example, a duct 64. In this example, the ventilation device 1 is installed in the ceiling 65 of the building 60. Although not shown, the space 61 is a space to be air-conditioned by an air conditioner.

In the summer, the first damper 31
Then, the fan 20 is operated with the second damper 32 in the state shown by the solid line in FIG. Then, as shown by a solid line arrow in FIG. 3, the ventilator 1 takes in the warmed air in the vicinity of the OA device 62 in the space 61 and exhausts it to the outside.
Air near the A device 62 is locally exhausted.

In winter, the fan 20 is operated with the first damper 31 and the second damper 32 in the state shown by the broken lines in FIG. Then, as shown by the dashed arrow in FIG. 3, the ventilation device 1 takes in outside air from the outside and exhausts the outside air from the ceiling side of the space 61 toward the OA device 62 in the space 61, and as a result, the vicinity of the OA device 62 Outside air is supplied to cool the outside air.

Therefore, by using the ventilator 1, air flows opposite to each other can be formed near the OA equipment 62 in the space 61 in summer and winter, and the load on the air conditioner due to the heat generated from the OA equipment 62 is always generated. Almost can be suppressed. Further, similarly to the first application example, the ventilation device 1 can be further miniaturized by further promoting the integration. Therefore, even when the ventilation device 1 is used in this manner, the ceiling space 65 can be obtained. And can be installed in an inconspicuous place and in a small installation space as described above, and it is possible to eliminate the necessity of assembling construction and adjustment on site by unitization.

[0037]

As described above, according to the air supply / exhaust ventilation device according to the present invention, the direction of the air taken in and exhausted into the air passage is reversibly controlled by the air direction switching means provided in the duct chamber. When applied to a large space equipped with an air conditioner, air flows can be formed in the opposite direction between summer and winter to eliminate uneven heat distribution in the space. Comfort in the lower living area can be ensured throughout the year. In addition, when the air conditioner is applied to a space with a heating element, the area around the heating element can be locally evacuated in summer and the outside air can be cooled around the heating element in winter. Generation can be almost suppressed.

Further, since a fan is provided inside the duct chamber having an air passage, and a wind direction switching means is provided in the duct chamber to form a unit, the size can be reduced. It can be installed in inconspicuous places such as the ceiling and in a limited small installation space. In addition, the unitization eliminates the necessity of assembling and performing adjustment on site, so that it can be installed in a short time, and the occurrence of a problem that the adjustment condition varies can be prevented.

[Brief description of the drawings]

FIG. 1 is a schematic view showing the configuration of an embodiment of a ventilation system for both air supply and exhaust according to the present invention.

FIG. 2 is an explanatory diagram showing a first application example of the ventilation device of the present invention.

FIG. 3 is an explanatory diagram showing a second application example of the ventilation device of the present invention.

FIG. 4 is an explanatory diagram (part 1) of an object of the present invention.

FIG. 5 is an explanatory view (2) of the problem of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Ventilation device, 10 ... Duct room, 11, 12 ... Opening,
Reference numeral 13: air passage, 20: fan, 21: housing, 21a: suction port, 21b: outlet, 22: fan body, 3
0: wind direction switching means, 31: first damper, 32: second
Damper, 33: drive unit, 33a, 33b, 33c: gear, 34: operation unit, 50, 60: building, 51, 61: space, 52: air conditioner, 57, 65: ceiling, 62: OA equipment

Claims (8)

[Claims] 1. A duct chamber having two openings serving as an air intake port and an air exhaust port, and an air blowing path formed in a state where the two openings are connected to each other. A fan provided inside the duct chamber in a state where a side and an outlet side are respectively connected to the air passage, and air taken into the air passage from one of the two openings is the air. A wind direction switching means provided in the duct chamber so as to be able to reversibly switch the wind direction of the air taken in and exhausted through the air passage so as to be exhausted from the other opening through the fan. An air supply / exhaust ventilation device characterized by being provided. 2. A housing having an air inlet and an air outlet and being installed in the duct chamber in a state of being communicated with the air passage through the air inlet through the air outlet; The air supply / exhaust ventilation device according to claim 1, further comprising a fan main body provided in the housing so as to be connected to the air passage through an opening to blow air into the air passage. 3. The blower path is formed so as to surround a housing of the fan, and a suction port and a blowout port of the fan are respectively
The wind direction switching means is formed between the two openings in the airflow path, and near the suction port and the airflow port of the fan in the airflow path, respectively, of the suction port or the airflow port and the two openings. The shaft is rotatable between a state in which one of the openings is communicated through the air passage and a state in which the suction port or the air outlet is communicated with the other opening through the air path. A supported plate-shaped first damper and a second damper, a driving unit connected to the first damper and the second damper and driving the first damper and the second damper in conjunction with each other; operating the driving unit 3. An air supply / exhaust ventilation device according to claim 2, further comprising an operation unit for switching between the first damper and the second damper. 4. The drive unit, wherein when the first damper is arranged to communicate the suction port and the one opening, the second damper is configured to move the blowout port and the other opening. The air supply / exhaust / ventilator according to claim 3, wherein the first damper and the second damper are driven in conjunction with each other so as to be placed in a state of communicating with the ventilation system. 5. The air supply / exhaust / ventilator according to claim 4, wherein the drive unit is configured by a combination of a plurality of gears. 6. In a building having a space with an air conditioner, one of the two openings is connected to an upper part of the space and the other is connected to a lower part of the space. The air supply / exhaust / ventilator according to claim 1, 2, 3, 4, or 5, wherein the ventilator is used in a state where the air supply and exhaust air are used. 7. In a building having a space in which a heating element is installed, one of the two openings is connected near the heating element in the space, and the other opening is outside. 6. The air supply / exhaust ventilation device according to claim 1, 2, 3, 4, or 5, wherein the ventilation device is used while being installed in a connected state. 8. The air supply / exhaust ventilation device according to claim 6, wherein the ventilation device is installed and used behind the ceiling of the building.