JPH10267351A - Layer air-conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To divide the indoor space surely into a plurality of different temperature spaces through a jet flow by setting the blowing the jet flow substantially in the horizontal direction and setting the blowing temperature higher than the ambient temperature on the low temperature side. SOLUTION: In order to section a large indoor space 1 into a high temperature room 2 and a low temperature room 3, a jet flow 4 heated up higher than the ambient temperature on the low temperature side through an air heater 11 is blown substantially horizontally from a jet nozzle 8 to the low temperature room 3 side by means of a fan 6 and eventually discharged through a discharge port 7 made in the ceiling to the outdoor after an air curtain is formed by the buoyancy of the jet flow itself. A first thermometer 9 is disposed in the low temperature room 3 and a second thermometer 10 is disposed in the way of piping between the air heater 11 and the jet nozzle 8 and the measurements therefrom are inputted to a controller 12. Power supply to the air heater 11 is controlled such that the temperature difference (measurement of the second thermometer 10measurement of the first thermometer 9) will be equal to a preset level + αdeg..

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stratified air conditioner for dividing a room into at least two different temperature spaces by a jet.

[0002]

2. Description of the Related Art Due to the development and diversification of the leisure industry, it has been demanded that leisure can be performed in a comfortable environment without being affected by the natural environment. In order to satisfy this demand, it is considered that an amusement park and a ski resort will be built in one dome, and it is possible to play in the amusement park even in bad weather,
You can ski. In this case, it is necessary to divide the inside of the dome into a high-temperature space that becomes an amusement park and a low-temperature space that becomes a ski resort.

FIG. 6 shows a stratified air conditioner using a conventional air curtain.

In a conventional stratified air conditioner, as shown in FIG. 6, a jet 4 for forming a large space 1 in a room into a high-temperature room 2 and a low-temperature room 3 is supplied from a vertical nozzle 5 installed on the floor surface. After being blown linearly upward by a fan 6 to form an air curtain, the air curtain is discharged to the outside through a discharge port 7 provided in a ceiling.

[0005]

In the above conventional stratified air conditioner, the jet 4 is blown vertically upward (or vertically downward), and the high temperature chamber 2 and the low temperature Due to the pressure difference due to the density difference caused by the temperature difference with the chamber 3 (particularly, the pressure difference becomes large in a large space),
As shown in FIG. 6, the jet 4 is bent (bent) toward the high temperature chamber 2.
In addition, since the jet width is large, the effect of inducing the jet 4 by the outlet 7 provided on the ceiling (or floor) is thin, and the cooling air leaks to the high temperature side, and the separation effect cannot be obtained. There were drawbacks.

[0006] In addition, an increase in the amount and speed of air curtain air requires an increase in the size of the fan machine room and the intake / exhaust duct, which has a significant effect on the space and is extremely uneconomical.

In order to prevent the effect of the temperature difference between the high temperature chamber 2 and the low temperature chamber 3 from appearing in the jet, it is necessary to forcibly separate the two chambers 2 and 3 with the vertical jet 4 so as to exceed the effect of the differential pressure. The dynamic pressure of the jet 4 must be increased, and an enormous air volume is required as the flow velocity increases, which causes a problem that the power of the fan 6 increases.

An object of the present invention is to solve such a problem and to provide a stratified air conditioner capable of reliably dividing into different temperature spaces without increasing the power of a jet.

[0009]

According to a first aspect of the present invention, there is provided a stratified air conditioner for dividing an indoor space into at least two different temperature spaces by a jet. The blowing direction is set to be substantially horizontal, and the blowing temperature of the jet is set higher than the surrounding low-temperature ambient temperature.

Further, the stratified air conditioner according to the second aspect of the present invention,
In the low-temperature side space of the at least two different temperature spaces, a slope having a predetermined thickness of artificial snow sprayed on a slope inclined upward from the lower surface of the temperature space dividing portion is formed, and the jet direction of the jet flow is changed to the low temperature. It is characterized in that it is a side space and substantially parallel to the slope surface.

Further, the stratified air conditioner of the invention according to claim 3 is
The low-temperature side space and the high-temperature side space are provided with a step portion which is relatively higher than the floor surface of the low-temperature side space, and the jet outlet of the jet is provided at a high position of the step portion. It is a feature.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 shows a schematic configuration of a stratified air conditioner according to a first embodiment of the present invention, and FIG. 2 schematically shows the operation of the stratified air conditioner of the present embodiment and a conventional stratified air conditioner.

In the stratified air conditioner of the present embodiment, FIG.
As shown in FIG. 2, a jet 4 for forming a large space 1 formed in a room of a building into a high-temperature room 2 and a low-temperature room 3 is formed by a fan 6 from an injection nozzle 8 installed on the floor.
It is designed to be blown out horizontally to the side. The injection nozzles 8 may be continuous in a horizontal line, or may be independently arranged in a line.

The jet 4 is blown out by the air heater 11 at a temperature higher than the ambient temperature on the low temperature side. The jet is deflected by the buoyancy of the jet fluid itself into an ascending flow due to the difference in density, and becomes an air curtain as an air curtain. A portion corresponding to the jet flow rate is discharged to the outside of the building from a discharge port 7 provided on the ceiling just above the installation position of 8 or on the side wall.

That is, one or a plurality of first thermometers (for example, thermocouples) 9 are provided at predetermined positions in the low-temperature chamber 3, and the measured values are input to a control device 12 installed outside the space.
On the other hand, an air heater 11 is provided in the pipe between the fan 6 and the injection nozzle 8, and the measured value of the second thermometer 10 provided in the pipe between the air heater 11 and the injection nozzle 8 is sent to the controller 12. Is being entered.

The control device 12 compares the measured value of the ambient temperature by the first thermometer 9 with the measured value of the heated air by the second thermometer 10 by using a built-in comparator, and compares the deviation (the second thermometer 10). The heating switch in the air heater 11 is turned on until the measured value of (−the measured value of the first thermometer 9) becomes a preset value + α ° C., and the jet is always turned off when the preset value + α ° C. is reached. The temperature control of 4 is performed. Note that the control device 12 may perform continuous control at + α ° C.

In this embodiment, a step 13 is provided between the low temperature chamber 3 and the high temperature chamber 2 such that the floor of the low temperature chamber 3 is lower than the floor of the high temperature chamber 2.
And the injection nozzle 8 is installed at a high position (or near the top) of the step portion 13. The step 13 may be a partial step between the low temperature chamber 3 and the high temperature chamber 2 that is relatively higher than the floor of the low temperature chamber 3.

Therefore, in the stratified air conditioner of the present embodiment, the jet 4 appropriately heated by the air heater 11
Is blown substantially horizontally from the injection nozzle 8 toward the low-temperature chamber 3, and then rises due to buoyancy to form an air curtain. Therefore, the large space 1 is partitioned into the high-temperature chamber 2 and the low-temperature chamber 3. As a result, it is not necessary to increase the jet flow velocity unlike the related art, and the fan power can be reduced. Further, in the present embodiment, since the air corresponding to the flow rate ejected from the ejection nozzle 8 is forcibly discharged from the outlet 7 provided on the ceiling, the jet 4 is forcibly guided, so that the air curtain is more easily formed. . In addition, when the space height is freely high, the attraction effect is small, and therefore, it may be installed at an appropriate position other than the ceiling.

Further, since the injection nozzle 8 is provided at a high position of the step 13 between the low temperature chamber 3 and the high temperature chamber 2, FIG.
As shown in FIG. 5, the downward airflow circulating in the low-temperature chamber 3 and flowing along the floor from the inclined surface is generated by the stepped portion 1 below the injection nozzle 8.
As a result, the airflow is once stopped by colliding with the airflow 3, the acting force on the jet 4 (air curtain) is reduced, and the air curtain is maintained in a good state. On the other hand, as shown in FIG. 2A, if there is no step as in the prior art, the downdraft flowing from the inclined surface in the low temperature chamber 3 along the floor surface is directly jetted 4
(Air curtain), which causes a force to bend the jet 4.

FIG. 3 is a schematic configuration of a stratified air conditioner according to a second embodiment of the present invention, FIG. 4 is a schematic diagram showing the operation of the stratified air conditioner of this embodiment and a conventional stratified air conditioner, and FIG. 2 shows a temperature distribution in a large space by the stratified air conditioner of FIG. Note that members having the same functions as those described in the above-described embodiment are denoted by the same reference numerals, and redundant description will be omitted.

In the stratified air conditioner of this embodiment, FIG.
As shown in FIG. 2, a jet 4 for forming a large space 1 formed in a room of a building into a high-temperature room 2 and a low-temperature room 3 is formed by a fan 6 from an injection nozzle 8 installed on the floor.
It is blown out toward the side. The low-temperature room 3 is formed with a slope surface 21 in which artificial snow of a predetermined thickness is sprayed on a slope inclined upward from the floor surface,
Cool air holes 22 are formed in the upper part of the slope 21 and discharge holes 23 are formed in the lower part thereof, so that cool air can be supplied to the surface of the artificial snow.

A step 13 is provided between the low-temperature chamber 3 and the high-temperature chamber 2 so that the floor of the low-temperature chamber 3 is lower than the floor of the high-temperature chamber 2. Is installed. In this case, the injection angle of the injection nozzle 8 is the same as the inclination angle of the slope 21, and the jet from the injection nozzle 8 is blown out in parallel with the slope 21.

Therefore, in the stratified air conditioner of the present embodiment, the cool air is supplied from the cool air holes 22 to the slope 21.
The surface of the artificial snow on the slope surface 21 is cooled by cold air. On the other hand, after the jet 4 appropriately heated by the air heater 11 is blown out from the injection nozzle 8 toward the low-temperature room 3 in parallel with the slope 21, it becomes a rising airflow due to buoyancy to form an air curtain. Therefore, the large space 1 is reliably partitioned into the high-temperature room 2 and the low-temperature room 3, and the cool air on the slope surface 21 is suppressed, so that a suitable snow quality is maintained.

Further, since the injection nozzle 8 is installed at a high position of the step portion 13 between the low temperature chamber 3 and the high temperature chamber 2, FIG.
As shown in FIG. 5, the cool air blown out from the cool air holes 22 and flowing along the slope 21 is discharged from the discharge holes 23 of the step portion 13, is blown out from the injection nozzle 8, and circulates in the low-temperature chamber 3. The descending airflow that flows from the inclined surface to the floor surface collides with the step portion 13 and the airflow is stopped once, the acting force on the jet 4 (air curtain) is reduced, and the air curtain is maintained in a good state. Is done.
On the other hand, as shown in FIG. 4A, if there is no step as in the related art, the descending airflow flowing along the floor from the inclined surface in the low-temperature chamber 3 directly collides with the jet 4 (air curtain). Therefore, there is a problem that the force becomes a force to bend the jet 4.

This is clear from the temperature distribution diagram shown in FIG. That is, in the large space 1, the lower part of the low-temperature chamber 3 becomes the low-temperature area C due to the cool air from the cold air holes 22, and the upper part of the low-temperature chamber 3 becomes the normal temperature area M
At the same time, the high-temperature chamber 2 becomes the high-temperature area H, and the large space 1 can be divided into the normal temperature area M and the high-temperature area H by the jet of the injection nozzle 8, that is, the air curtain. By making the surface parallel to the surface 21, it is possible to suppress the cool air and maintain the low temperature region C.

In the above embodiment, the injection nozzle 8
The jet 4 is blown by the fan 6 to the low-temperature chamber 3 side in parallel with the slope 21. However, if the jet temperature of the jet is set higher than the ambient temperature of the surrounding low-temperature side, the jet direction of the jet is made substantially horizontal. Thus, the large space 1 can be divided into two different temperature spaces, and at the same time, the cool air can be suppressed on the slope surface 21.
The jet direction of the jet 4 from the nozzle is not limited to the above embodiments. In addition, the spray nozzle 8
And the outlet 7 is provided on the ceiling, but the position of the outlet 7 is not limited to the ceiling, and may be a side wall.

The present invention is not limited to the above embodiment, and it goes without saying that various modifications can be made without departing from the spirit of the present invention.

[0029]

As described in the above embodiment, according to the stratified air conditioner of the first aspect of the present invention, the indoor space can be divided into at least two different temperature spaces by the jet, and the jet direction of the jet is substantially changed. Horizontal and
Since the jet temperature of the jet is set higher than the ambient temperature on the low-temperature side, the air curtain is formed by the buoyancy of the jet fluid itself, and the interior space can be surely divided into different temperature spaces by this jet, and the jet flow velocity It can be small and fan power can be reduced.

According to the stratified air conditioner of the second aspect of the present invention, artificial snow having a predetermined thickness is applied to the slope inclined upward from the lower surface of the temperature space dividing portion in the low temperature side space of the two different temperature spaces. The scattered slope surface is formed, and the blowing direction of this jet is in the low-temperature side space and substantially parallel to the slope surface, so that the jet air blown substantially parallel to the slope surface suppresses the cool air on the slope surface 21 and is suitable. Snow quality can be maintained.

According to the stratified air conditioner of the third aspect of the present invention, a step portion which is relatively higher than the floor surface of the low temperature side space is provided in the temperature space dividing portion between the low temperature side space and the high temperature side space. The jet outlet of the jet is provided at the high position of the part, so that the descending airflow in the low-temperature side space is dammed at the step below the outlet to avoid the flow-down operation from directly colliding with the jet. Function deterioration can be prevented.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a stratified air conditioner according to a first embodiment of the present invention.

FIG. 2 is a schematic diagram illustrating the operation of a stratified air conditioner of the present embodiment and a conventional stratified air conditioner.

FIG. 3 is a schematic configuration diagram of a stratified air conditioner according to a second embodiment of the present invention.

FIG. 4 is a schematic diagram illustrating the operation of the stratified air conditioner of the present embodiment and a conventional stratified air conditioner.

FIG. 5 is a temperature distribution diagram of a large space by the stratified air conditioner of the present embodiment.

FIG. 6 is a diagram of a stratified air conditioner using a conventional air curtain.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Large space 2 High temperature room 3 Low temperature room 4 Jet 6 Fan 7 Outlet 8 Injection nozzle 9 1st thermometer 10 2nd thermometer 11 Air heater 12 Control device 13 Step part 21 Slope face 22 Cold air hole 23 Discharge hole

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Takayuki Irie 2-1-1, Shinhama, Arai-machi, Takasago-shi, Hyogo In-house Takasago Research Laboratory, Mitsubishi Heavy Industries, Ltd. (72) Inventor Shuji Sumitani 2-1-1, Shin-ama, Arai-machi, Takasago-shi, Hyogo Prefecture No. 1 Inside the Mitsubishi Heavy Industries, Ltd. Takasago Factory

Claims (3)

[Claims] 1. A stratified air conditioner which divides an indoor space into at least two different temperature spaces by a jet, wherein a jet direction of the jet is substantially horizontal, and a jet temperature of the jet is lower than an ambient temperature of a surrounding low-temperature side. A stratified air conditioner characterized by being set high. 2. The stratified air conditioner according to claim 1, wherein
In the low-temperature side space of the at least two different temperature spaces, a slope having a predetermined thickness of artificial snow sprayed on a slope inclined upward from the lower surface of the temperature space dividing portion is formed, and the jet direction of the jet flow is changed to the low temperature. A stratified air conditioner characterized by being in a side space and substantially parallel to the slope surface. 3. The stratified air conditioner according to claim 2,
The low-temperature side space and the high-temperature side space are provided with a step portion which is relatively higher than the floor surface of the low-temperature side space, and the jet outlet of the jet is provided at a high position of the step portion. Characterized stratified air conditioner.