JP2012177520A - Air conditioning equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide air conditioning equipment capable of saving energy by minute temperature control, and of suppressing installation cost, by installing an air flow adjusting device of a simple structure for each air outlet part.SOLUTION: In the air conditioning equipment in which the inside of a ceiling is set as a supply chamber, and conditioning air from an air conditioner is blown to a target space under the ceiling from a plurality of air outlet parts 20 provided in the ceiling, the air outlet parts 20 are provided with a radiation plate 50 facing the target space Z and forming an air outlet for blowing conditioning air to the target space, and an air flow adjusting device 30X facing a sectional space including a back surface of the radiating plate 50 and adjusting a blowing air flow from the radiating plate 50. The air flow adjusting device 30X includes a box-shaped body, discharge ports 31A, 31B formed at a part thereof, an air flow adjusting member 32 provided at a part facing in the ceiling, and a drive means 33 for moving the air flow adjusting member 32 to make a communication area in and out of the box variable.

Description

  The present invention relates to an air conditioner, and more particularly to an air conditioner in which a ceiling is used as a supply chamber, and conditioned air from an air conditioner is blown out to a target space under the ceiling from a plurality of blowing portions provided on the ceiling.

  In air conditioning, when adjusting the room temperature, it is common to adjust the air volume.

For example, in the variable air volume single duct system, a duct is connected from an air conditioner to a plurality of outlets on the ceiling surface, and the air volume supplied to the room is changed by a variable air volume device (VAV) installed in the middle of the duct. Is adjusted. In this case, the room temperature is usually adjusted to 50 m ^{2 to} 100 m ² as one control zone.

  On the other hand, there is a case where the inside of the ceiling is used as a chamber (Patent Document 1). Blowing air from an air conditioner is blown into the ceiling chamber, and a) a porous plate using a pressure difference (around 10 Pa) between the ceiling chamber and the room. Or the like, and b) ventilating the room indoors by the pressure of a small blower attached to the anemo-type air outlet.

In this case, the room temperature is adjusted by changing the air volume with a variable air volume device (VAV) installed in the duct just before the ceiling chamber is blown in, or by opening and closing the piezoelectric element damper installed just above the outlet. The method of changing is taken. In b), a method of changing the air volume of a small blower attached to the anemo-type outlet is taken. In this case, the indoor temperature control zone has the same size as the former, and usually 50 m ^{2 to} 100 m ² is one control zone.

  However, when using a VAV device installed in a duct in front of the ceiling chamber, a more detailed control zone is required to achieve further energy saving. It is necessary to install a device, which causes problems such as a rise in equipment costs, an increase in incidental work, and a complicated control wiring.

  On the other hand, in the case of using a piezoelectric element damper installed immediately above the outlet, it is necessary to control the opening and closing of the damper by applying a high voltage power supply of about DC 200V to 250V in order to operate the piezoelectric element. Invite the soaring.

  In addition, when a small blower is attached to the anemo-type air outlet, motors that drive the rotating body are arranged in the ceiling by the number of air outlets, increasing the burden on noise countermeasures and maintenance.

  Each of the above examples is a method of air-conditioning a room with the amount of air blown from the air conditioner or the temperature of the blown air. On the other hand, so-called radiant cooling and heating, which is said to have a great effect on the thermal feeling in recent years, has attracted attention. In radiant cooling, normally, in a system in which a water pipe and a radiant metal panel are integrated on the ceiling surface, chilled water is passed through the water pipe to lower the panel surface temperature below room temperature, thereby producing a radiant cooling effect. Water pipes in the ceiling are usually avoided because there are concerns about the risk of water leakage, which is an obstacle to popularization.

Japanese Patent No. 3269572

  Therefore, the main problem of the present invention is to provide an air-conditioning facility that can save energy by fine temperature control and can suppress facility costs by providing an air volume adjusting device with a simple structure for each outlet. There is.

  Another main problem is that the use of a perforated plate in which a large number of air outlets that face the target space and blow out conditioned air to the target space is used as the blowout unit, and the air volume adjustment device according to the present invention is used for radiant cooling and heating. Is to effectively demonstrate.

  Specifically, it is possible to subdivide the temperature control zone, control construction costs, simplify the control wiring in the ceiling, simplify the control method, lower the voltage of the device drive power supply, and so on. The effect of radiant cooling and heating can be brought out.

  The present invention that has solved the above problems is as follows.

<Invention of Claim 1>
In the air conditioning equipment where the inside of the ceiling is a supply chamber and conditioned air from the air conditioner is blown out to the target space under the ceiling from a plurality of outlets provided on the ceiling,
The blow-out unit faces a partition space that includes a radiation plate that faces the target space and blows conditioned air into the target space, and a rear surface of the radiation plate, or directly on the rear surface of the radiation plate An air volume adjustment device that adjusts the blowout air volume is provided.
The air volume adjusting device includes a box-shaped main body, a discharge port formed in a part thereof, an air volume adjusting member provided at a portion facing the ceiling, and the air volume adjusting member is moved to move the air volume adjusting member to the ceiling supply chamber. Drive means for changing the communication area of the box-shaped body,
Air conditioning equipment characterized by that.

(Function and effect)
Harmonized air is blown out from a plurality of blow-out portions provided on the ceiling to a target space below the ceiling. Each blowout part is provided with a radiation plate, and conditioned air is blown into the target space from a blowout port that passes through the radiation plate or a blowout port around the radiation plate.
Since the air volume adjusting device faces the partition space including the rear surface of the radiation plate or directly faces the rear surface of the radiation plate, the conditioned air is radiated when the conditioned air is blown from the outlet to the target space. The temperature of the radiation plate is adjusted by hitting the plate, and the radiant heat from the radiation plate is also radiated to the target space.
As a result, not only hot and cold air whose temperature is adjusted but also hot and cold heat is radiated into the target space, so that an effective sense of temperature can be given. In addition, the conditioned air blown from the discharge port of the radiation plate reaches the ceiling portion around the radiation plate and adjusts the temperature of the ceiling portion. Therefore, since the temperature of the ceiling part around each blowout part is also adjusted, radiant heat is radiated from the entire ceiling to the target space, so it receives both the heat of the conditioned air blown from the blowout outlet, A comfortable air-conditioned space is secured.
On the other hand, since the air volume adjusting device is provided for each outlet, fine temperature adjustment by the air volume and radiant heat can be performed on the target space, and energy-saving operation is possible.
The air volume adjusting device has a box-shaped main body, a discharge port formed in a part thereof, an air volume adjusting member provided in a portion facing the ceiling, and a variable communication area inside and outside the box by moving the air volume adjusting member. Therefore, the equipment cost is low, and the maintenance burden after installation is light.

<Invention of Claim 2>
2. The driving means provided for each of the blowout units is a motor, and is configured such that an individual or a plurality of motors are grouped and controlled individually or in groups to adjust the air volume. Air conditioning equipment.

(Function and effect)
With the control of the motor, fine air volume adjustment is possible.

<Invention of Claim 3>
The air-conditioning equipment according to claim 1, wherein the discharge port is opened such that a discharge direction of the conditioned air is directed in a plurality of directions.

(Function and effect)
It is possible to cool the entire heat sink, not locally.

<Invention of Claim 4>
The air conditioning equipment according to any one of claims 1 to 3, wherein a discharge port of the air volume adjusting device faces a back surface of the heat radiating plate.

(Function and effect)
Even if the discharge port of the air volume adjusting device directly faces the rear surface of the heat sink, the heat sink can be cooled.

<Invention of Claim 5>
The air volume adjusting device includes a box-shaped main body and an air volume adjusting member that forms a lid that covers the intake opening, and the air volume adjusting member moves perpendicularly to the intake opening by the driving means. The air conditioning equipment according to any one of claims 1 to 4, which is configured as described above.

(Function and effect)
When the air volume adjusting member is moved close to and away from the intake opening by the driving means, the size of the separation space with respect to the edge of the intake opening around the air volume adjusting member is generated, and the air volume can be adjusted depending on the size.

<Invention of Claim 6>
The air volume adjusting device has a box-shaped main body, an air volume adjusting member configured to cover the opening for taking in the conditioned air, rotate about a rotation axis, and open and close the lid. The air conditioning equipment according to any one of claims 1 to 4, wherein the adjustment member is configured to be hingedly rotated about the rotation axis with respect to the intake opening by the driving means.

(Function and effect)
When the air volume adjusting member is hinged about the rotation axis with respect to the intake opening by the driving means with respect to the intake opening, the air volume adjusting member is separated from the edge of the surrounding intake opening on the side opposite to the rotation axis of the air volume adjusting member. The size of the space is generated, and the air volume can be adjusted depending on the size.

<Invention of Claim 7>
The air volume adjusting device includes a box-shaped main body and an air volume adjusting member that forms a lid that covers a plurality of intake openings formed in a part of the box-shaped main body, and a plurality of communication holes are formed. It is comprised so that it may move in parallel with respect to the said taking-in opening by the said drive means, and it is comprised so that adjustment of an air volume may be made by the magnitude of the communication area of the said taking-in opening and a communicating hole. Air conditioning equipment given in any 1 paragraph.

(Function and effect)
When the air volume adjusting member is moved in parallel with the intake opening by the driving means, the communication area between the intake opening and the communication hole of the air volume adjusting member is increased, and the air volume can be adjusted.

  As described above, according to the present invention, by providing an air volume adjusting device having a simple structure for each outlet, energy can be saved by fine temperature control, and equipment costs can be suppressed. In addition, by using a perforated plate in which a large number of air outlets that face the target space and blow out conditioned air into the target space are used as the blowout part, and the air volume adjusting device according to the present invention, the radiant cooling and heating can be effectively performed. It can be demonstrated.

It is the whole explanatory view of the example of an air harmony system. It is sectional drawing of a heat sink and a raising / lowering type air volume adjustment apparatus. It is a top view which shows the relationship between a heat sink and the discharge outlet of a raising / lowering type air quantity adjustment apparatus. It is a top view of a raising / lowering type air volume adjustment apparatus. It is sectional drawing for operation | movement description of a raising / lowering type air volume adjustment apparatus. It is sectional drawing of a heat sink and a hinge-type air volume adjustment apparatus. It is a top view which shows the relationship between a heat sink and the discharge outlet of a hinge type air volume adjusting device. It is a top view of a hinge type air volume adjusting device. It is sectional drawing for operation | movement description of a hinge type air volume adjusting device. It is sectional drawing of a heat sink and a slide-type air volume adjustment apparatus. It is a top view which shows the relationship between a heat sink and the discharge outlet of a slide type air volume adjustment apparatus. It is a top view of a slide type air volume adjusting device. It is a top view of a slide type air volume adjusting device. It is sectional drawing which shows the other example of a heat sink with a raising / lowering type air volume adjustment apparatus. It is a bottom view of a heat sink. It is sectional drawing which shows another example of a heat sink with a raising / lowering type air volume adjustment apparatus.

Next, an embodiment of the present invention will be described.
FIG. 1 is an overall explanatory view of an example of an air conditioning system. The inside of the ceiling 10 is a supply chamber C, and the conditioned air from the air conditioner (AHU) 12 is blown out from a plurality of outlets 20, 20... Provided in the ceiling 10 to a target space (for example, an office room) Z below the ceiling 10. It is a thing. The air conditioner 12 takes in the outside air and air that has moved from the target space Z to the floor, and blows it out to the target space Z under the ceiling 10 as conditioned air after temperature adjustment from a plurality of outlets 20, 20. .

On the other hand, a perforated plate 50 in which a large number of air outlets 50a, 50a,... Facing the target space Z and blowing conditioned air into the target space Z are formed in each of the outlets 20, 20,. An air volume adjusting device 30 (not shown in FIG. 1) for adjusting the air volume is provided.
A temperature controller 22 is provided at an appropriate position in the target space Z, and a temperature control signal by a resident for the temperature controller 22 or a temperature control signal from a central management room (not shown) is air-conditioned. An indication signal from the controller 24 of the apparatus 12 and the target space from the temperature detector 26 provided in units of zones divided by the blowing unit 20 alone or by the blowing units 20, 20... By taking in the temperature signal, the group unit dispersion controller 28 is configured to specifically operate the air volume adjusting member 32 of the air volume adjusting device 30 to adjust the blown air volume.
Several examples of the air volume adjusting device 30 will be described below.

<Elevating air volume control device>
2 to 5 show an example of an elevating air volume adjusting device 30X. The perforated plate 50 as an example of the heat sink of the present invention has a large number of small outlets 50a, 50a,... The opening ratio by the blower outlets 50a, 50a ... is, for example, 5 to 70%, more preferably 25 to 65%. The perforated plate 50 forms a box shape including the top plate 51 and the side plate 52.

An air volume adjusting device 30X that adjusts the air volume blown from the perforated plate 50 is provided facing this compartment space (facing the back of the perforated plate 50 of the compartmented box).
The air volume adjusting device 30X has, for example, a box shape having a rectangular parallelepiped top, bottom, and side wall, and is a part of the main body of the air volume adjusting device 30X. The box 31 (air volume adjustment) is moved by moving the air volume adjusting member 32 and the air volume adjusting member 32 provided at the portion facing the ceiling (the ceiling) so as to close the outlets 31A and 31B and the intake opening opening upward at the ceiling. The main body of the apparatus 30X) has a drive means 33 that can change the communication area inside and outside.

  The drive means 33 is a stepping motor, for example, and is fixed to the main body of the air volume adjusting device 30X. The moving shaft 33a of the stepping motor 33 is connected to the air volume adjusting member 32, and is configured to be moved toward and away (moved up and down) by the driving means 33 perpendicular to the intake opening. Guide rods 34 extending downward at the four corners of the air volume adjusting member 32 are inserted into bushes 35 of brackets provided at the four corners of the main body of the air volume adjusting device 30X, so that the vertical movement of the air volume adjusting member 32 is stabilized. ing. Reference numeral 36 denotes an operation switch for the air volume adjusting member 32, which is provided to confirm whether or not the stepping motor 33 is operated and the air volume adjusting member 32 is operated, and the air volume adjusting member 32 is separated from the operation switch 36. An operation signal is generated at.

In such an apparatus, when the air volume adjusting member 32 is moved up and down by the drive means 33 (stepping motor) vertically and perpendicularly to the top opening of the main body of the air volume adjusting apparatus 30X, The size of the separation space (the opening area is indicated by a symbol S in FIG. 2) with respect to the edge of the intake opening is generated, and the air volume can be adjusted by the size.
The conditioned air in the supply chamber C taken into the main body of the air volume adjusting device 30X is diffused and discharged from the discharge ports 31A and 31B to the entire partition space, and then the discharged air is blown out from the blowout ports 50a, 50a,. To the target space (for example, office room) Z under the ceiling 10.
At that time, the perforated plate 50 itself is also maintained at a controlled temperature. When the perforated plate 50 is a material that emits radiant heat (for example, a metal plate such as aluminum), the radiant heat is also emitted into the target space Z. A typical example of the perforated plate 50 is punching metal. As a material of the radiation plate 50 (perforated plate 50), in addition to a metal plate such as a steel plate or an aluminum plate, a resin plate or ceramics can be used.

<Hinged air flow adjustment device>
6 to 9 show an example of a hinge type air volume adjusting device 30Y.
The hinge-type air volume adjusting device 30Y has, for example, a box shape having a rectangular parallelepiped top, bottom, and side wall, and is formed between a louver-like inclined plate at a lower portion in the illustrated example of the air volume adjusting device 30Y. The air volume adjusting member 32 and the air volume adjusting member 32 provided on the ceiling (portion) facing the ceiling are moved so as to block the discharge ports 31A and 31B and the top opening of the ceiling supply chamber. And a drive means 33 that makes the communication area inside and outside the box (the main body of the air volume adjusting device 30Y) variable.
The drive means 33 is, for example, a stepping motor, and is fixed to the main body of the air volume adjusting device 30Y. The moving shaft 33 a is connected to the air volume adjusting member 32 to the stepping motor.

  The air volume adjusting member 32 is pivotally attached to the main body of the air volume adjusting device 30Y via a rotary hinge shaft 38. As a result, the air volume adjusting member 32 is configured to be hinged about the rotation axis (rotation hinge axis 38) so as to open and close the intake opening by the vertical movement of the drive means 33. When the hinge is rotated about the rotation axis as described above, the space (the opening area is indicated by a symbol S in FIG. 9) with respect to the edge of the surrounding intake opening on the side opposite to the rotation axis of the air volume adjusting member 32. ) Occurs, and the air volume can be adjusted depending on the size.

<Sliding air volume control device>
10 to 13 show an example of the slide type air volume adjusting device 30Z.
The slide-type air volume adjusting device 30Z has a main body of the air volume adjusting device 30Z having a box shape having, for example, a rectangular parallelepiped top, bottom, and side wall. The air volume adjusting device 30Z has a plurality of intake openings 32a and 32a formed in discharge ports 31A and 31B formed between a louver-like inclined plate in a part of the main body, in the illustrated example, and a top (plate) 32P. ... and an air volume adjusting member 32 in which a large number of communication holes 32b, 32b, ... are formed, and driving means 33 that moves the air volume adjusting member 32 to vary the communication area inside and outside the box (the main body of the air volume adjusting device 30Z). And have.

  The driving means 33 is, for example, a stepping motor, and is fixed to the main body of the air volume adjusting device 30Z. The moving shaft 33a of the stepping motor is connected to the air volume adjusting member 32 through a bracket 33b. The intake openings 32a, 32a, ... and the communication holes 32b, 32b, ... are elongated slit holes extending in the direction penetrating the drawing with respect to the moving direction of the driving means 33, that is, the horizontal direction on the drawing with reference to FIG.

  The air volume adjusting member 32 is configured to move in the horizontal direction so as to open and close the intake openings 32a, 32a, ... by horizontal movement by the driving means 33. When horizontally moved, the intake openings 32a, 32a... Are entirely covered with the air volume adjusting member 32 (FIG. 13), and the numerous communication holes 32b, 32b. An appropriate opening state is selected between the two. In this way, the air volume is adjusted according to the size of the communication area between the intake openings 32a, 32a... And the communication holes 32b, 32b. Reference numeral 42 denotes a boss formed on the top, which guides the small slide hole 32 c of the air volume adjusting member 32.

  In each of the above examples, the example in which the porous plate 50 is used as the heat radiating plate is shown. However, as shown in FIGS. 14 and 15, for example, four long holes 50a are formed around the heat radiating plate 50A, You may make it blow off from the surrounding blower outlet (long hole) 50a. Thus, in the present invention, the shape, number, arrangement, and the like of the outlet 50a can be selected as appropriate.

  Moreover, in each said example, although the blower outlet 50a was formed in the heat sink 50 and the example which blows off conditioned air through the heat sink 50 was shown, as shown in FIG. It is also possible to provide a separation portion between the two and make the separation portion the outlet 50a. In this case, the air outlet 50 a may not be formed in the heat radiating plate 50 B, but the air outlet 50 a may be formed and the conditioned air may be blown out through the heat radiating plate 50.

The driving means 33 of the present invention, for example, a stepping motor, can control not only one air volume adjusting device 30 (air volume adjusting member 32) but also a plurality of air volume adjusting devices 30 (air volume adjusting members 32) at the same time or individually in a time division manner.
Further, the stepping motor can be operated at a low voltage of about 5V to 24V instead of a high voltage of 250V unlike the conventional piezoelectric element damper. As a result, the safety is dramatically improved compared to the piezoelectric element damper.
Furthermore, the opening / closing speed of the air volume adjusting member 32 can be made variable. During normal air conditioning, noise generation is suppressed by low-speed operation, and in the case of an emergency such as a fire, it is fully opened and quickly opened from the room to the ceiling. Smoke storage is possible.

10 ... Ceiling 12 ... Air conditioning unit (AHU)
Z ... Target space 20 ... Blowout section 22 ... Temperature adjuster 24 ... Controller 26 ... Temperature detector 28 ... Controller 30 ... Air volume adjusting devices 30X, 30Y, 30Z ... Lifting air volume adjustment devices 31A, 31B ... discharge port 32 ... air volume adjustment member 33 ... driving means (stepping motor)
38 ... Rotary hinge shaft 50 ... Perforated plate (heat sink)
50a ... outlet 50A, 50B ... heat sink

Claims (7)

In the air conditioning equipment where the inside of the ceiling is a supply chamber and conditioned air from the air conditioner is blown out to the target space under the ceiling from a plurality of outlets provided on the ceiling,
The blow-out unit faces a partition space that includes a radiation plate that faces the target space and blows conditioned air into the target space, and a rear surface of the radiation plate, or directly on the rear surface of the radiation plate An air volume adjustment device that adjusts the blowout air volume is provided.
The air volume adjusting device includes a box-shaped main body, a discharge port formed in a part thereof, an air volume adjusting member provided at a portion facing the ceiling, and the air volume adjusting member is moved to move the air volume adjusting member to the ceiling supply chamber. Drive means for changing the communication area of the box-shaped body,
Air conditioning equipment characterized by that.   2. The driving means provided for each of the blowout units is a motor, and is configured such that an individual or a plurality of motors are grouped and controlled individually or in groups to adjust the air volume. Air conditioning equipment.   The air-conditioning equipment according to claim 1, wherein the discharge port is opened such that a discharge direction of the conditioned air is directed in a plurality of directions.   The air conditioning equipment according to any one of claims 1 to 3, wherein a discharge port of the air volume adjusting device faces a back surface of the heat radiating plate.   The air volume adjusting device includes a box-shaped main body and an air volume adjusting member that forms a lid that covers the intake opening, and the air volume adjusting member moves perpendicularly to the intake opening by the driving means. The air conditioning equipment according to any one of claims 1 to 4, which is configured as described above.   The air volume adjusting device has a box-shaped main body, an air volume adjusting member configured to cover the opening for taking in the conditioned air, rotate about a rotation axis, and open and close the lid. The air conditioning equipment according to any one of claims 1 to 4, wherein the adjustment member is configured to be hingedly rotated about the rotation axis with respect to the intake opening by the driving means.   The air volume adjusting device includes a box-shaped main body and an air volume adjusting member that forms a lid that covers a plurality of intake openings formed in a part of the box-shaped main body, and a plurality of communication holes are formed. It is comprised so that it may move in parallel with respect to the said taking-in opening by the said drive means, and it is comprised so that adjustment of an air volume may be made by the magnitude of the communication area of the said taking-in opening and a communicating hole. Air conditioning equipment given in any 1 paragraph.

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