JPH07101109B2 - Air conditioning ventilation unit for ceiling installation - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is installed in a room such as a building, exhausts polluted air in the room to the outside and surely introduces fresh outside air into the room. The present invention relates to an air conditioning / ventilation unit for ceiling installation that makes it possible to obtain a comfortable and refreshing air conditioning distribution in a room at all times.

[0002]

2. Description of the Related Art Conventionally, in an air conditioner, a unit for taking in and exhausting indoor air, and an air conditioning unit for introducing outside air and an air conditioning unit for blowing outside air are separately installed as ventilation means for indoor air. . In addition, recently, a fan coil unit formed by integrally forming the air supply and exhaust unit has been developed, but most of these are supplied and ventilated by a single blower installed in the machine. ing. However, in this type of air-conditioning unit, it was completely impossible to obtain the direct cooling by the outside air, which is required in the interim period where the heating and cooling are not required in the four seasons, that is, in the period of June to July. Furthermore, since the air conditioning unit according to the above has various mechanical devices cluttered in a small machine, the air flow is not smooth, and the overall machine height is bulky, which is not suitable for a ceiling installation type. Had the drawback of.

[0003]

SUMMARY OF THE INVENTION The present invention has been developed as a ceiling-mounted air conditioning unit that solves the above-mentioned drawbacks, and incorporates an outside air cooling operation function into an indoor circulation operation function to provide ventilation in a room. The present invention intends to provide an all-air-conditioning type air conditioning / ventilation unit that enables direct cooling by outside air.

[0004]

As means for achieving the above-mentioned object, the present invention uses partition plates a and b in the machine to provide an air supply chamber A, a blower chamber B, an outside air introduction chamber C, and an exhaust chamber D. And mechanical devices such as a ventilation blower 7, an outside air blower 8, a cooling and hot water heat exchange coil 9 and a humidifier 10 are arranged in each of the chambers, and the air supply chamber A and the exhaust chamber are further formed. Exhaust damper F1 between D, outside air introduction damper F2 between outside air introduction chamber C and blower chamber B, return air damper F3 between air supply chamber A and blower chamber B
It is characterized by the fact that each of the installations is installed and that the ventilation of the in-flight ventilation can be freely returned, supplied, or introduced into the outside air by operating the dampers F1, 2, 3 respectively.

[0005]

The ventilation unit having the above structure is provided, for example, with the indoor air intake 2 and the blower port 3 on the indoor side, and the other exhaust port 4 and the external air intake 5 to the outside by directly opening or connecting them to the ceiling. It will be installed inside or on the ceiling. In such a normal operation, when the dampers F1 and F2 are closed and the return air damper F3 is opened to supply air, and the ventilation blower 7 is operated, the indoor air flows from the intake 2 to the air supply chamber A, This flows into the adjacent blower chamber B through the return air damper F3, is cooled, is heated to an appropriate temperature by the action of the hot water heat exchange coil 9, is humidified, and is returned as return air from the blower port 3 again. . By reusing the circulating air as described above,
Since the amount of heat contained in the return air can be effectively reused without being thrown out to the outside, the amount of heat used can be greatly reduced. Also, when it is necessary to take in fresh air due to the indoor environment, etc., the return air damper F3 is closed, the other dampers F1 and F2 are opened, and the air supply / ventilation blower 7 and the outside air blower 8 are operated. As a result, the total amount of the air in the room is discharged from the air intake 2 through the air passage 6a to the outside through the exhaust port 4. Simultaneously with the above, one of the fresh outside air is introduced into the air passage 6b from the outside air intake 5, flows into the air blowing chamber B, is cooled, and is heated and humidified to an appropriate temperature by the action of the heat exchange coil 9 for hot water. Fresh air is blown into the room through the blower port 3. Particularly in the present invention, in the middle of the season when the required cooling and heating is not required recently, fresh outside air flows through the outside air intake 5 to the air passage 6b by the one-sided operation by only the outside air blower 8 as described above. It is possible to send it directly to the room and easily obtain the ideal outdoor air cooling.
In addition, when appropriate humidification is required in the room, it is possible to simultaneously supply the appropriate humidified air together with the blown air into the room by operating the humidifier 10. Further, when the outside air is cooled, the cooling water is not supplied to the heat exchange coil 9 for hot water. However, if the cooling air is insufficient due to the popularity of the room or the sunshine, the cooling water is supplied to the coil 9. It is possible to find the optimum room temperature only by supplementing the flow of cold air.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings, an embodiment will be described below.
In the airframe, the indoor air intake 2 and the blower port 3 are provided in the front part of the airframe facing the indoor side, and the exhaust port 4, the outside air intake 5, each of the intake, return, and exhaust ports are provided in the other side. In addition, the center of the machine is divided into left and right front and rear by partition plates a and b to form air supply chamber A, blower chamber B, outside air introduction chamber C, and exhaust chamber D in the machine, and penetrate the respective chambers. A blower passage 6a that connects the indoor air intake 2 and the exhaust port 4 and a blower passage 6b that connects the outside air intake 5 and the blower port 3 are formed inside the machine. In addition, the blower 7 for air supply and ventilation is installed in the air supply chamber A, and the outside air blower 8 is installed in one of the air blower chambers B, and the heat exchange coil 9 for hot and cold water and the drain pan are further installed in the air blower chamber B. A humidifier 1 is provided with various mechanisms such as an electric control valve, a valve mechanism, and the like, if necessary.
It is also possible to install a mechanical device such as 0. Reference numeral 20 in the figure denotes a filter mechanism which is detachably fitted near the inside and outside air intakes 2 and 5. In the ventilation unit having such a structure, an exhaust damper F1 is provided between the air supply chamber A and the exhaust chamber D of the air blowing passage 6a, and an outside air introducing damper F is provided between the outside air introducing chamber C and the air blowing chamber B of the air blowing air passage 6b.
2, and a return air damper F3 is provided between the air supply chamber A and the air blowing chamber B so as to be openable and closable, and the air flow in the air blowing passages 6a and 6b can be freely switched and changed in any direction according to the purpose of use. Configure to close. By the way, by opening the exhaust damper F1 and closing the return air damper F3, the indoor air flows from the air intake port 2 through the ventilation passage 6a and the entire amount of the indoor air flows out through the exhaust port 4. Further, similar to the above, by closing the return air damper F3 and opening the outside air introduction damper F2, the outside air flows through one of the air passages 6b and is blown into the room through the air blower chamber B from the air blower port 3 during that time. The outside air is a heat exchange coil 9 for cold and hot water installed in the blower chamber B.
By the action, heat is exchanged to an appropriate temperature and a predetermined cold and warm air is sent to the room. However, when it is not necessary to introduce outside air, both dampers F1 and F2 are closed, and only the return air damper F3 is used. As a result, the indoor air is recirculated from the intake port 2 to the blower port 3 again without discarding the indoor air. In addition to the above, when only the outside air is required to be taken in, the return air damper F3 and the exhaust damper F1 are closed, and the outside air introduction damper F2 is opened to allow the outside air to flow from the outside air introduction chamber C to the blower chamber B. Therefore, it is possible to directly supply the cooling air by the outside air to the room. Needless to say, the flow of the heat medium to the heat exchange coil 9 for hot water is stopped during the outside air cooling. The dampers F1, F2, and
The opening / closing operation of F3 is performed by various methods such as a sensor, a computer, an electric method, and a mechanical method.

Further, according to the present invention, the panel board 13 is attached to the side surface or the bottom surface of the machine body 1 so as to be openable and closable, so that maintenance work in the machine can be easily performed.

In the present invention, the above description of the embodiment is for an air-conditioning ventilation unit for ceiling installation, but the present invention is not limited to the ceiling installation, but a floor-standing type or an outdoor-installation type can be used by utilizing such a structure. It can also be used as another air conditioning ventilation unit.

[0009]

As described above, the air-conditioning ventilation unit for ceiling installation according to the present invention is provided with the air supply chamber A, the exhaust chamber D, the blower chamber B, and the outside air introduction chamber C in the machine, and the air supply chamber A is supplied to each of these chambers. ,
Ventilation blower 7, outside air blower 8 and necessary equipment such as heat exchange coil 9 for cold and hot water are provided in each arrangement and blower passage 6 is provided.
Exhaust damper F1 and outside air introduction damper F in a and 6b
2 and the return air damper F3 between the blower passages 6a and 6b.
Has a simple structure in which each of the dampers is freely opened and closed, and 100% of the total amount of indoor air is circulated according to the indoor environment simply by opening and closing the dampers F1, F2 and F3. In addition to the operation, it is possible to easily and surely obtain any air conditioning operation such as exhaust. In addition, the operation of the outside air introduction damper F2 can easily supply fresh outside air to the room, and the direct cooling by the outside air can always provide a refreshing air-conditioning environment in the room.

According to the second aspect of the present invention, the humidifier 10 is installed in the machine together with the heat exchange coil 9 for cold and hot water so that the indoor air can be circulated during operation. It is also possible to supply appropriate humidified air to the room at the same time.

According to the third aspect of the present invention, the panel plate 13 is attached to the side portion or the lower bottom portion of the machine body 1 so as to be openable and closable, so that maintenance work inside the ceiling or below the machine body can be performed. It has an effect that it can be easily and surely performed.

[Brief description of drawings]

FIG. 1 is a plan view showing the internal structure of an air-conditioning ventilation unit according to the present invention,

FIG. 2 is a side view of the same.

[Explanation of symbols]

 2 Indoor air intake 3 Air blower 4 Exhaust port 5 Outside air intake 6 Air blow passage 7 Supply, ventilation blower 8 Outside air blower 9 Cooling and hot water heat exchange coil 10 Humidifier 13 Panel plate A Air supply room B Air blower C Outside air Introduction chamber D Exhaust chamber F1, F2, F3 damper

Claims (3)

[Claims] 1. An indoor air intake 2 and an air blower 3 are provided on one side of a machine body 1, and an intake port and an exhaust air port of an outside air intake port 5 are provided on the other side, respectively, and a partition plate a is provided inside the machine body. , B are divided into the air supply chamber A, the air blowing chamber B, the outside air introduction chamber C, and the exhaust chamber D at the front, rear, left, and right, and the indoor air intake 2 and the exhaust port 4 are connected to connect the respective chambers to each other. The air passages 6a and 6b for connecting the outside air intake 5 and the air outlet 3 are formed in parallel,
An air blower 7 for air supply and ventilation is provided in the air supply chamber A, an outside air blower 8 is provided in the outside air introduction chamber C, and a mechanical device such as a heat exchange coil 9 for cold and hot water is provided in the air blower chamber B. An exhaust damper F1 is provided between the air supply chamber A and the exhaust chamber D, and an outside air introduction chamber C is provided.
An external air introduction damper F2 is installed between the air supply chamber A and the air supply chamber B, and a return air damper F3 is installed between the air supply chamber A and the air supply chamber B, and the air flow inside the machine is controlled by the respective dampers F1, F2, and F3. An air-conditioning ventilation unit for ceiling installation, characterized by being able to freely select and switch between exhaust air, outdoor air introduction, and return air supply according to the indoor environment. 2. The ventilation unit according to claim 1, wherein a humidifier 10, an electric control valve 11, a filter mechanism 12, and other various mechanical devices are required in the air passage 6 of the air blowing chamber B or the like. The air-conditioning ventilation unit for ceiling installation, which is characterized by arranging each of them. 3. The ventilation unit according to claim 1, wherein a panel plate 13 is attached to a side surface or a lower surface of the machine body 1 so as to be openable and closable so that maintenance work inside the machine body can be easily performed. Air conditioning ventilation unit for installation.