JP2592158B2 - Zone air conditioner - Google Patents

Description

The present invention relates to a zone air conditioner suitable for air conditioning a local space in the atmosphere.

(Conventional technology and its problems) Conventionally, as shown in FIG. 3, a tent house having a plurality of struts 02 supporting an awning 01 is stretched in an outdoor event venue or the like. In order to air-condition the inside of the tent, a cool air generator 03 and a ventilation duct 04 were installed, and the cold air generated by the cool air generator 03 was blown out from the multiple outlets 05 through the ventilation duct 04 into the tent house. However, there is a problem that cold air is blown to a person in the tent house, which not only discomforts the person, but also takes time to install the cold air generator 03 and the ventilation duct 04.

(Means for Solving the Problems) The present invention was invented to solve the above problems, and the gist of the present invention is to provide a blower unit that sucks air from outside the air zone and urges it. An air guide disposed in the air above the air zone and forming an air zone surrounded by the film-shaped air flow by blowing air supplied from the blower unit downward as a film and blowing the film downward. An air conditioning unit having a built-in use side heat exchanger for exchanging heat with the air in the air zone to regulate the temperature, and a heat source unit installed outside the air zone, wherein the air conditioning unit is located at a lower part in the air zone. Plural units are installed on the fixed surface at a distance from each other, and the above-mentioned blower unit is attached to the upper part of the support standing upright on these air-conditioning units. Attaching the air guide and disposing a heat source side heat exchanger for exchanging heat with air outside the air zone in the heat source unit,
The zone air conditioner is characterized in that the use-side heat exchangers and the heat-source-side heat exchangers are incorporated in a refrigeration cycle via a refrigerant pipe.

(Operation) In the present invention, the air sucked from the outside of the air zone is urged by the blower unit and supplied to the air guide, and is blown downward as a film-like air flow from the air guide. An air zone is formed which is surrounded by an air flow in a shape. The air blowing unit and the air guide are supported by the plurality of air conditioning units in the air above the air zone via the columns. Further, the heat pumped from the air outside the air zone by the heat source side heat exchanger of the heat source unit is given to the air inside the air zone flowing through each use side heat exchanger.

(Embodiment) One embodiment of the present invention is shown in FIG. 1 and FIG.

1 and 2, 1 is an air conditioning unit, 12 is an air guide, 3 is a blowing unit, and 4 is a heat source unit.

An annular use-side heat exchanger 31 is disposed in the lower part of the cylindrical container box 10 of the air conditioning unit 1 so as to face the air inlet 30 formed in the peripheral wall 10b. At the center of the upper part of the use side heat exchanger 31, a use side blower 24 is attached to the container box 10 via a stay 32, and a drive source 19 such as a motor has a stay 33 at the upper part of the use side blower 24. It is attached to the container box 10 via. A plurality of the air conditioning units 1 are installed at a predetermined interval from each other on a fixed surface 8 such as a ground surface or a floor surface below the air zone 20. In addition, a plurality of conditioned air outlets 35 are formed on the periphery of the top plate 10a of the container box 10, and a hollow column 7 that rises upward is erected at the center of the top plate 10a,
The blower unit 3 is attached to the upper part of the support 7.

A blower 17 is disposed inside a casing 18 of the blower unit 3, and the blower 17 is provided with a hollow support 7 and a casing.
Drive 18 is driven by a drive source 19 via a drive shaft 29 that extends upward through a bearing 22 fixed to the bottom plate 18a. An outside air intake 23 is formed at the center of the top plate 18b of the casing 18.

The air guide 12 includes a bowl-shaped upper guide 11 and a bowl-shaped lower guide 13 disposed below and spaced apart therefrom. The upper guide 11 and the lower guide 13 have base ends of the casing 18. It is connected to and integrated with the top 18b and the bottom plate 18a, and the distance between them is gradually narrowed toward the tip, and is gradually bent downward.

The heat source unit 4 is installed outside the air zone 20, and a compressor 5, a heat source side blower 40, and a heat source side heat exchanger 25 are built in a casing 21. The compressor 5 is disposed at the center of the bottom plate 21c of the box 21. The heat source side blower 40 is located at the center of the box 21 so as to face the exhaust port 26 formed at the center of the top plate 21a of the box 21. And the heat source side heat exchanger 25 is
It is arranged so as to face the outside air intake 27 formed in the peripheral wall 21b.

The compressor 5, the use-side heat exchanger 31, and the heat-source-side heat exchanger 25 are connected via a refrigerant pipe 28 and are incorporated in a refrigeration cycle.

When operating this zone air conditioner,
9. The use side blower 24, the heat source side blower 40 and the compressor 5 are driven.

When the compressor 5 is driven, the refrigerant compressed by the compressor 5 enters the heat source side heat exchanger 25 to be condensed and liquefied, and enters the use side heat exchanger 31 via a reservoir, an expansion valve and the like (not shown). After evaporating here, it returns to the compressor 5 via an accumulator (not shown).

When the drive source 19 is driven, the blower 17 rotates, and accordingly, air outside the air zone 20 is sucked into the casing 18 from the outside air intake 23 and is urged by the blower 17.
Then, it enters the air guide 12, diffuses in the process of passing through the air passage 15 formed between the upper guide 11 and the lower guide 13, and is simultaneously accelerated. The air is blown out as a film-like airflow toward the fixed surface 8. Then, a cylindrical air zone 20 surrounded by the film-shaped air flow, the air guide 12 and the fixing surface 8 is formed.

On the other hand, when the heat source side blower 40 rotates, the air outside the air zone 20 passes through the outside air inlet 27 of the heat source unit 4 and the container box.
After entering the inside of the heat source 21 and raising the temperature in the process of sucking and sucking the heat source side heat exchanger 25, it is urged by the heat source side blower 40 and discharged to the atmosphere from the exhaust port 26.

When the use-side blower 24 rotates, the air inside the air zone 20 enters the container box 10 through the intake port 30 and is cooled in the process of flowing through the use-side heat exchanger 31. The air is blown from the air outlet 35 into the air zone 20 to cool the inside of the aerosol 20.

In the above embodiment, the case where the inside of the air zone 20 is cooled has been described. However, the inside of the air zone 20 can be heated by circulating the refrigerant in the refrigerant circuit in the opposite direction.

(Effects of the Invention) In the present invention, a large air zone is formed by a film-like airflow blown downward from an air guide, and the air zone is air-conditioned by a plurality of air conditioning units. Further, since the blowing unit and the air guide are supported by the plurality of air conditioning units in the atmosphere above the air zone via the support columns, it is not necessary to install them as in a conventional tent house. In addition, since the heat pumped from the air outside the air zone by the heat source side heat exchanger of the heat source unit is given to the air inside the air zone flowing through the use side heat exchanger of the air conditioning unit, the cost of heat for air conditioning is reduced. I need less.

And since the airflow does not blow to the person in this air zone, there is no discomfort, and the person can see the outside through the film-like airflow, Free access to the air zone through the membrane.

In addition, since the air guide and the blowing unit are supported by the plurality of air conditioning units via the columns, the air zone can be moved easily and quickly.

[Brief description of the drawings]

1 and 2 show an embodiment of the present invention. FIG. 1 is a perspective view with a part cut away, and FIG. 2 is a schematic longitudinal sectional view. FIG. 3 is a cutaway perspective view showing a part of the conventional apparatus. Air zone ... 20, air guide ... 2, air conditioning unit ...
1, blower unit 3, heat source unit 4, support column 7, use side blower 24, use side heat exchanger 31,
Heat source side heat exchanger …… 25, heat source side blower …… 40

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Fumio Kondo, Inventor Nagoya Research Laboratories, Mitsubishi Heavy Industries, Ltd.

Claims (1)

(57) [Claims] A blower unit for sucking air from the outside of the air zone to urge the air; and an air blower disposed in the air above the air zone and supplied from the blower unit to form a film and move downward. An air guide that forms an air zone surrounded by the film-shaped air flow by blowing out, an air conditioning unit including a use-side heat exchanger that exchanges heat with air in the air zone and regulates the temperature, A heat source unit installed outside the air zone, and the air conditioning unit is installed at a plurality of intervals on a fixed surface in the lower part of the air zone at an interval from each other, and the air conditioning unit Attach the blower unit,
Attaching the air guide to the blower unit and arranging a heat source side heat exchanger for exchanging heat with air outside the air zone in the heat source unit, and using the respective use side heat exchangers and the heat source side heat exchangers as refrigerants A zone air conditioner characterized by being incorporated into a refrigeration cycle via piping.