JP4865150B2 - Directional air conditioning system and blowout unit - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a directional air-conditioning system, and more particularly to an air-conditioning system suitable for a relatively large air-conditioning space in which a device that dislikes the influence of airflow such as a rotary press is installed.
[0002]
[Prior art]
A rotary press used in a printing factory may be installed in a large air-conditioned space having a height from a floor surface to a ceiling surface of 5 m or more, for example. In such a printing factory, since drying leads to generation of defective products due to paper breakage or static electricity, supply of conditioned air is desired. Similarly, powder processing devices used in food factories and the like may be installed in a large conditioned space. A deliberate air conditioning system is known for air-conditioning such a large air-conditioned space (large space: height direction and other two-dimensional space (width, length) is relatively large). .
[0003]
[Problems to be solved by the invention]
The air-conditioning system of the derivative system is a system in which units consisting of fan ducts with branch ducts and nozzles attached to the ends of the branch ducts are distributed, and the construction cost is high and the number of fans is large and maintenance is complicated. There is room for improvement. Recently, a method of arranging a large number of small axial fans toward the direction in which the airflow is to be formed has also been put into practical use. Is troublesome.
[0004]
On the other hand, if the rotary press is exposed to a strong air current in the upper part, the paper surface may be shaken, resulting in print misalignment or paper breakage. Similarly, in a powder processing process in a food factory or the like, if a strong air current is applied, the powder may be scattered and the yield may be reduced. The air conditioning system is not preferable because it discharges a high-speed air flow for attracting the ambient air, which may cause paper sway or misprinting. The same applies to processes that dislike airflow fluctuations, such as laser measurement.
[0005]
An object of the present invention is to provide an air conditioning system that is particularly suitable for a relatively large air-conditioned space in which equipment such as a rotary press that dislikes the influence of airflow is installed.
[0006]
[Means for solving the problems]
In order to achieve this object, according to the present invention, there is provided an air-conditioning system for an air-conditioning space in which equipment that generates heat and dislikes the influence of airflow is installed. A non-blowing zone in which the airflow is installed and a blowing zone in which heat is generated and equipment that does not dislike the influence of the airflow are installed, and the blowing air that blows cooling air toward the inside of the blowing zone on the ceiling surface of the blowing zone the mouth is arranged, the ceiling surface of the non-balloon zone, an exhaust port is disposed, said Ri height der least 5m from the floor of the air conditioning space to the ceiling surface, the outlet is in the non-balloon zone Provided is a directional air conditioning system characterized by blowing cooling air in a direction parallel to the side of a device that has installed heat generation and dislikes the influence of airflow .
[0007]
In this specification, the air-conditioned space can be exemplified by a large air-conditioned space (large space) having a height from the floor surface to the ceiling surface of 5 m or more, or a roof span of 100 m or more. In this air-conditioned space, rotary presses used in printing factories, powder processing equipment used in food factories, etc., each device is not large, but multiple devices are closely arranged, such as production and testing. Devices that do not like the effects of airflow, such as a group of devices that occupy a large area, are installed to perform a series of processes.
[0008]
Such an air-conditioned space is divided into a non-blowing zone in which equipment that generates heat and dislikes the influence of airflow is divided into a blowing zone in which equipment that generates heat and dislikes the influence of airflow is not installed. Place the mouth. One or a plurality of outlets can be provided in the outlet zone.
[0009]
Then, conditioned air is blown out from the air outlet arranged in the air outlet zone toward the air outlet zone. From the air outlet, conditioned air is blown out in a direction parallel to the side of the device that dislikes the influence of the air flow installed in the non-air outlet zone . In this case, the conditioned air may be blown out radially from the blowout port so that it does not directly hit the equipment that dislikes the influence of the airflow installed in the non-blowout zone.
[0010]
In this way, while cooling air is blown out toward the blowing zone, the air is exhausted from the exhaust port arranged in the non-blowing zone. As a result, the cooling air can be supplied to the surroundings of the equipment that generates heat in the non-blowing zone and dislikes the influence of the airflow.
[0011]
In addition, since machines such as rotary presses are heavy and withstand the load, the floor surface is not an opening such as a grating, and a concrete surface that cannot be substantially ventilated (even if the surface is tiled or carpeted). Often). In such a case, the air outlet and the exhaust outlet may be provided at a location other than the floor surface in the air-conditioned space.
[0012]
In the case of a large air-conditioned space where the height from the floor to the ceiling is more than 5m when a general anemo is attached to the outlet in order to blow out the cooling air from the outlet to the outlet zone, Due to the high ceiling, sufficient airflow does not reach the driver and maintenance personnel in the air-conditioned space, and a good air-conditioning environment cannot be provided. Accordingly, there is provided a blowout unit attached to the blowout opening in the directional air conditioning system of the present invention, comprising a plurality of slit-shaped blowout guides that are parallel to each other and directed radially. The
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory diagram of an air-conditioned space 1 to which a directional air-conditioning system according to an embodiment of the present invention is applied. The air-conditioned space 1 is configured by being surrounded by a floor surface 11 and a ceiling surface 12, and a side wall surface 13 erected between the floor surface 11 and the ceiling surface 12.
[0014]
On the floor surface 11 in the air-conditioned space 1, a device 15 that dislikes the influence of airflow, such as a rotary press used in a printing factory and a powder processing apparatus used in a food factory or the like, is installed. The floor surface 11 has sufficient strength to withstand the installation load of these devices 15, and is composed of, for example, a reinforced concrete structure. The air-conditioned space 1 is a large air-conditioned space 1 having a height from the floor surface 11 to the ceiling surface 12 of, for example, 5 m or more, or a roof span of 100 m or more so that these devices 15 can be installed.
[0015]
The air-conditioned space 1 is divided into a non-blowing zone a where the device 15 is installed and a blowing zone b where the device 15 is not installed. On the ceiling surface 12 of the blowing zone b, a blowing port 20 for supplying air toward the blowing zone b is disposed. In the illustrated example, each outlet 20 is formed of a hollow rectangular tube. Each air outlet 20 is supplied with conditioned air (air with adjusted temperature, humidity, etc.) via an air supply duct 21, and each air outlet 20 is thus conditioned air supplied from the air supply duct 21. Can be blown out toward the floor surface 11 respectively.
[0016]
Here, the blowout unit 25 for blowing out conditioned air radially is attached to the blowout opening 20 arranged on the ceiling surface 12 of the air-conditioned space 1. As shown in FIG. 2, the blowout unit 25 has a shape in which a cylindrical chamber 27 is connected to the lower end of a sleeve 26 that is detachably attached to the blowout port 20. A plurality of blowout guides 28 are formed so as to protrude in a predetermined direction so as to guide air and blow out in a predetermined direction, and the tip of each blowout guide 28 is formed in a slit-shaped opening 29. Such a blowout unit 25 is formed by, for example, forming a stainless steel plate (SUS304 or the like) into a cylindrical shape by a roll machine and punching it, but it may be manufactured by cold working with a press device. And it is good for the inner surface of the blowout unit 25 to provide a lining (glass wool etc.) with a thickness of about 50 mm for preventing condensation.
[0017]
As shown in FIG. 1, the central axis 27 ′ of the cylindrical chamber 27 is horizontally arranged so as to be perpendicular to the side surface 15 ′ of the device 15 installed in the non-blowing zone a. In addition, each blowing guide 28 formed on the peripheral surface of the chamber 27 is disposed on the peripheral surface of the chamber 27 so as to extend in the longitudinal direction (a direction parallel to the central axis 27 ′ of the chamber 27). Is formed in a slit-shaped opening 29 extending in the longitudinal direction on the peripheral surface of the chamber 27. Each blowing guide 28 formed so as to protrude from the peripheral surface of the chamber 27 has the same length, and each opening 29 has an equal distance (that is, a cylindrical shape) from the central axis 27 ′ of the chamber 27. Is located on the virtual circumferential surface formed outside the chamber 27. Further, in the cross-sectional view orthogonal to the central axis 27 ′ of the chamber 27, the blowout guides 28 have an appropriate central angle Θ (for example, about 40 °) around the central axis 27 ′ of the chamber 27. , Each blowing guide 28 is formed and arranged radially. As a result, the air supply guided by the respective blowout guides 28 and blown out from the respective openings 29 flows almost in parallel with the side of the device 15. In short, through the blowout unit 25 attached to the blowout port 20 arranged on the ceiling surface 12 of the air-conditioned space 1, it harmonizes radially and in a direction parallel to the side surface 15 ′ of the device 15 installed in the non-blowing zone a. Air is blown out.
[0018]
As shown in FIG. 3, in the blowing zone b of the air-conditioned space 1, a plurality of outlets 20 are arranged on the ceiling surface 12 of the air-conditioned space 1 along a side surface 15 ′ of the device 15. A blowout unit 25 is attached to each blowout port 20. The conditioned air is blown out from the blowout opening 20 arranged on the ceiling surface 12 of the air-conditioned space 1 through the blowout unit 25, so that it is guided by the blowout guide 28 of each blowout unit 25 and blown out radially from each opening 29. The conditioned air thus made flows down in the entire blowing zone b while flowing in a direction parallel to the side surface 15 'of the device 15 installed in the non-blowing zone a, and flows down toward the floor surface 11 in the blowing zone b. It has become.
[0019]
As shown in FIG. 1, an exhaust port 30 is arranged on the ceiling surface 12 in the non-blowing zone a of the air-conditioned space 1. An exhaust duct 31 is connected to the exhaust port 30, and air in the air-conditioned space 1 can be exhausted through the exhaust port 30 and the exhaust duct 31.
[0020]
Now, in the air-conditioned space 1 configured as described above, conditioned air is blown out from each blowing port 20 arranged in the blowing zone b toward the blowing zone b and exhausted from the exhaust port 30. The conditioned air blown out from the blowout port 20 arranged on the ceiling surface 12 of the air-conditioned space 1 is blown out radially through the blowout unit 25 and is parallel to the side surface 15 ′ of the equipment 15 installed in the non-blowing zone a. While flowing in the direction, the entire blowout zone b is lowered without directly hitting the device 15 and flows down toward the floor surface 11 in the blowout zone b.
[0021]
Then, the conditioned air descending to the floor surface 11 in the blowing zone b is then pushed out of the blowing zone b and forms a gentle flow, scooping the floor surface 11, and then the subsequent air (following Air blown out from the blowout port 20 and pushed up by the air reaching the floor surface 11, and ascended around the equipment 15 installed in the non-blowing zone a, provided on the ceiling surface 12 of the non-blowing zone a The air is exhausted from the exhaust port 30. Thereby, conditioned air can be supplied also around the apparatus 15 installed in the non-blowing zone a. As described above, the conditioned air flows through the entire conditioned space 1 so that the upper part of the conditioned space 1 does not accumulate heat.
[0022]
Note that if the final wind speed of the conditioned air reaching the floor surface 11 in the blowout zone b is 0.5 m / s, the air flow may be too early and the device 15 may be adversely affected, but the final wind speed is 0.25 m / s. Then there is no worry about adverse effects. The inventor's knowledge is that the critical point is 0.35 m / s, and the final wind speed of the conditioned air reaching the floor surface 11 in the blowing zone b is preferably 0.35 m / s or less.
[0023]
As mentioned above, although an example of preferable embodiment of this invention was shown, this invention is not limited to the form illustrated here. For example, two blowing units 25 arranged in FIG. 1 may be joined to form one unit. Of course, one long blowing unit 25 may be configured by a manufacturing method. Moreover, you may install one (1 unit), without arranging two blowing units 25. FIG. The distance between the side surface 15 ′ of the device 15 and the end of the blowing unit 25 (distance in plan view) is preferably about 1 m.
[0024]
Further, the number of the blowout guides 28 formed in the blowout unit 25 is arbitrary, and as shown in FIG. 4, the blowout unit 25 in which the blowout guides 28 are formed only in two places may be used. Moreover, as shown in FIG. 5, you may comprise the blowing unit 25 which has arrange | positioned the blowing guide 28 asymmetrically.
[0025]
Further, the conditioned air may be blown down directly to the floor surface 11 by blowing out the conditioned air directly from the blowing port 20 toward the blowing zone b without using the blowing unit 25. However, when the blowing unit 25 is not used, the shape of the blowing unit 25 is set so that the conditioned air can be blown in a direction parallel to the side surface 15 ′ of the device 15 in as wide a range as possible of the blowing zone b. It may be formed long in a direction parallel to the side surface 15 '(long in the vertical direction (vertical direction) in FIG. 1). If the blowing unit 25 is used, there is an advantage that it is not necessary to devise the shape of the blowing unit 25 in this way, and the merit of equipment cost and small air volume can be utilized.
[0026]
Further, the blowout port 20 and the exhaust port 30 are not limited to the ceiling surface 12 of the air-conditioned space 1 but may be provided on the side wall surface 13 of the air-conditioned space 1. Further, the air outlet 20 may be provided in each of the air outlet zones b, or may be provided in a part of the air outlet zones b. The exhaust ports 30 may also be provided in all the non-blowing zones a, or may be provided in some non-blowing zones a.
[0027]
When cooling air is blown out as conditioned air from the blowout port 20 arranged on the ceiling surface 12, the conditioned air blown out radially from the blowing unit 25 is the side surface 15 ′ of the device 15 installed in the non-blowing zone a. , The whole descends in the blowing zone b due to the temperature difference and flows down toward the floor surface 11. In FIG. 3 described above, the airflow distribution during cooling (shown by the alternate long and short dash line) when the central axis 27 ′ of the chamber 27 is positioned at a height of 9.5 m from the floor 11 is shown. In the case where heat is generated from the device 15 installed in the non-blowing zone a, the cooling air is blown out from the blow-out port 20 in this way, so that the equipment can be used exclusively for cooling.
[0028]
【Effect of the invention】
According to the present invention, the conditioned air that has been blown into the blowing zone can then be pushed out of the blowing zone and supplied to the non-blowing zone as a gentle flow. ADVANTAGE OF THE INVENTION According to this invention, the comparatively large conditioned space in which the apparatus which dislikes the influence of airflow, such as a rotary press, can be air-conditioned suitably.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of an air-conditioned space to which a directional air-conditioning system according to an embodiment of the present invention is applied.
FIG. 2 is a longitudinal sectional view of a blowing unit.
FIG. 3 is an explanatory diagram showing an air flow distribution of conditioned air in a blowing zone.
4 is a longitudinal sectional view of a blowing unit according to an embodiment different from FIG. 2. FIG.
5 is a longitudinal sectional view of a blowing unit according to an embodiment different from those shown in FIGS.
[Explanation of symbols]
a non-blowing zone b blowing zone 1 air-conditioned space 11 floor 12 ceiling 13 side wall 15 equipment 20 blowing outlet 21 air supply duct 25 blowing unit 26 sleeve 27 chamber 28 blowing guide 30 exhaust outlet 31 exhaust duct

Claims (3)

An air-conditioning system for an air-conditioned space with devices that generate heat and dislike the effects of airflow
The air-conditioned space is divided into a non-blowing zone in which equipment that generates heat and dislikes the influence of airflow is installed, and a blowing zone in which equipment that generates heat and dislikes the influence of airflow is not installed,
On the ceiling surface of the blowing zone, a blowing port for blowing cooling air toward the inside of the blowing zone is arranged,
An exhaust port is arranged on the ceiling surface of the non-blowing zone,
Ri height der least 5m from the floor to the ceiling surface of the air-conditioned space,
The directional air -conditioning system according to claim 1, wherein the air outlet blows cooling air in a direction parallel to a side surface of a device that generates heat and does not like the influence of an air flow installed in the non-air blowing zone .   2. The directional air conditioning system according to claim 1, wherein the final air velocity of the cooling air reaching the floor surface in the blowout zone is 0.35 m / s or less.   A blowing unit attached to the outlet in the directional air conditioning system according to claim 1 or 2,
  A blowout unit comprising a plurality of slit-shaped blowout guides that are parallel to each other and directed radially.

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