JPH0534566B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a forced draft air conditioning method using radiant heating that saves energy in a seating hall of a theater, movie theater, etc. and provides a thermal environment that keeps the head cold and the feet warm at all times, and the method thereof. It is related to the device.

[Conventional technology]

Conventionally, the air blowing method and device for air conditioning in the seating halls of theaters, movie theaters, etc. has generally been duct blowing from the ceiling or wall, which is convenient when cooling, but when heating it is difficult to live indoors. The temperature near the head of the person is high and the feet are low, creating a large temperature difference between the floor and ceiling, creating a thermal environment where the head is hot and the feet are cold. To prevent this, air vents on the ceiling Although the wall outlet has a mechanism to direct the jet downwards, and the wall outlet has an adjustment mechanism to direct the jet diagonally downward, the effect has not yet been fully demonstrated, and it is difficult to keep the footwells warm on the floor. In some cases, devices have been installed to blow hot air under the seats for this purpose.

As mentioned above, if the blowout is suitable for cooling, it will become a defect when heating, and if it is suitable for heating, it will become a defect when cooling.Currently, no blowout method or device has been found that satisfies both. .

[Problem to be solved by the invention]

In conventional air blowing methods and devices for air conditioning, air blowing outlets are installed on ceilings and walls, which is a problem because all the air must be heated or cooled, especially in rooms with high ceilings. Energy is consumed for heating or cooling the necessary space, which has the disadvantage that it does not meet recent demands for energy conservation.

In addition, even if the blowing method and device are suitable for either heating or cooling, a thermal environment with a hot head and cold feet will be created during cooling or heating, which is unhealthy for indoor occupants.

Furthermore, a device that blows warm air to the lower part of a chair seat for the purpose of keeping the floor underfoot warm has the disadvantage that it scatters dust on the floor, which is not sanitary.

The present invention blows hot or cold air from separate hot air blowing nozzles and cold air blowing nozzles from the rear of the lower surface of the chair seat, making it possible to heat and cool only the necessary space without scattering dust on the floor. An object of the present invention is to provide a forced draft air conditioning method with radiant heating that can always provide an ideal thermal environment that keeps the head cold and the feet warm when heating, as well as its device.

[Means to solve the problem]

In order to solve the above problems, the present invention installs an air blowing box for air conditioning above the floor surface connected to a cold/hot air supply duct behind the lower surface of the chair seat, and hot air blowing is provided in front of the blowing box. A hot air blowing nozzle that can be opened and closed by a switching damper is provided protrudingly, and the upper rear part of the blowing box is opened diagonally upward as a cold air opening. It can be rotatably housed in the blow-off box so as to open and close, and when the cold-air blow-off nozzle is housed in the blow-off box together with the cold-air blow-off switching damper during heating, the cold-air opening is closed and the temperature from the cold-hot air supply duct is removed. A radiant plate/protective rectifier that protects the nozzle by adjusting the airflow of cold air from the cold/hot air supply duct from the nozzle when the cold air blowing nozzle protrudes from the blowing box by the cold air blowing switching damper during cooling. A board is attached to the outside of the slanted cold air opening of the outlet box.

[Function] A blowout box is installed above the floor at the bottom of the chair.
Cold and warm air are ejected from their own dedicated blow-off nozzles using respective blow-off switching dampers. Hot air is blown diagonally upward from the bottom of the seat along the bottom surface of the seat, and cold air is blown upward along the rear of the back seat of the chair seat. The warm air heats the lower body of the indoor occupant while heating the upper body with the gradually lowered airflow, and also heats the radiant plate and protective rectifier plate that blocks the cold air opening of the outlet box. Radiant heating uses radiation from the warm air inside the outlet box to warm the feet and legs, and by placing the feet on a radiation plate and protective rectifier plate, the feet are heated by direct heat conduction, making it even more effective. Achieving a thermal environment that keeps the head cold and feet warm, and the cold air is blown upward to avoid direct contact with the human body due to the coander effect of the radiation plate and protective rectifier plate, but at this time, the cold air stagnant on the floor and After drawing the air around the human body and forming an air current whose temperature gradually rises, it spreads over the head.
By descending, the human body is cooled,
This is to prevent the phenomenon of cold feet as much as possible.

At this time, each nozzle has a shape that has the effect of attracting secondary air, so the temperature difference from room temperature can be minimized, so even if the hot or cold air touches your body directly, you will not feel extremely hot or cold. There isn't.

Note that since the hot air is blown out obliquely upward from the bottom of the seat along the lower surface of the seat, the hot air constitutes an airflow that does not come into direct contact with the floor surface or shoes.

〔Example〕

Reference will now be made in detail to the accompanying drawings, which illustrate one example of carrying out the invention.

1 is a chair seat in a chair hall of a theater, movie theater, etc.; 2 is a seat 1a of the chair seat 1;
This is a hot and cold air supply duct buried in the floor surface 3 at the rear of the lower surface of the duct, with its tip protruding from the floor surface 3.The base end is connected to a heating and cooling device (not shown) that generates hot and cold air to supply hot and cold air. . 4 is an air blowing box, the bottom surface 4a
A connecting pipe 5 fixed to the duct 2 is inserted from the tip of the hot/cold air supply duct 2 and installed on the lower surface of the seat 1a. Reference numeral 6 denotes a hot air blowing nozzle, which has a shape that has an effect of attracting secondary air, and is provided at the middle part of the front surface 4b of the blowing box 4, with its tip projecting slightly upwardly. 7 is a warm air blowout switching damper, one end of which is rotatably supported near the front surface 4b of the upper surface 4c of the blowout box 4;
The opening 6a of the hot air blowing nozzle 6 is opened or closed from the inner surface of the hot air blowing nozzle 6. Reference numeral 8 denotes a cold air opening, which opens obliquely upward from the upper surface 4c of the rear upper part of the blower box 4 to the rear surface 4d. Reference numeral 9 denotes a cold air blowing switching damper, which has a cold air blowing nozzle 10 protruding from its middle part so as to blow cold air obliquely upward behind the back seat 1b of the chair seat 1 during cooling. Pivotally supported on the inner surface of the lower end,
During cooling, the cold air blowing nozzle 10 as shown in FIG.
It is rotatable so as to protrude to close the opening 8, or to be housed in the blow-off box 4 together with the cold-air blow-off nozzle 10 during heating, as shown in FIG. Reference numeral 11 denotes a radiation plate and protective rectifying plate, one end of which is pivotally supported on the outer surface of the lower end of the cold air opening 8, and is used together with the cold air blowing nozzle 10 to cool air blowing switching damper 9 during heating.
When placed in the blow-off box 4, the cold air opening 8 is closed to produce a radiant effect of the warm air inside the blow-off box 4, and by placing the feet directly on it, the foot warming effect is achieved by heat conduction. As a radiation plate, it is fixed diagonally upward at a constant angle θ with the cold air opening 8 as shown in Fig. 2 during cooling, and has the effect of producing a coander effect for airflow rectification, as well as cooling air blowing. It acts as a protective rectifying plate that protects the nozzle 10 and the occupant's feet. 1
Reference numeral 2 designates a protective plate that protrudes from the upper end of the front surface 4b of the air outlet box 4, and is used to protect the seat 1 when the seat 1a is flipped up toward the back seat 1b when the seat is empty.
b This is to prevent the rear part from coming into contact with the hot air blowing nozzle 6 and protect the nozzle 6.

Note that the air blowing box 4 can be used as a unit for one person or for three to five people, depending on the structure and arrangement of the chairs, and can be implemented as desired.

Next, when using the device of the present invention, first, during heating, the cold air blowing switching damper 9 having the cold air blowing nozzle 10 protruding thereon is rotated in the direction of the lower surface 4a of the blowing box 4 and housed in the blowing box 4. , the hot air blowout switching damper 7 is moved from the inner surface position of the front surface 4b of the blower box 4 to the upper surface 4c.
The hot air blowing nozzle 6 is opened by moving it to the inner surface position, and the cold air opening 8 of the blowing box 4 that accommodates the cold air blowing switching damper 9 is closed with the radiation plate/protective rectifying plate 11, and hot and cold air is discharged into the blowing box 4. Warm air is supplied from the supply duct 2, and the hot air 13 is ejected diagonally upward from the hot air blowing nozzle 6, and as shown in FIG. and rise. In this case, the supply temperature of primary air during heating is increased to enhance the radiant heating effect of the radiant plate/protective rectifier plate 11.

In addition, during cooling, the hot air blowout switching damper 7 is moved from the inner surface position of the top surface 4c of the blower box 4 to the inner surface position of the front surface 4b to close the hot air blowout nozzle 6, and then the radiant plate/protective rectifier plate 11 is moved to the cold air opening 8. The cold air blowing nozzle 10 is fixed to the blowing box 4 at an angle θ.
The cold air opening 8 is closed by a cold air blowing switching damper 9 so as to protrude from the hot air blowing box 4, and cold air is supplied from the hot/cold air supply duct 2 into the blowing box 4, and the cold air 15 is blown diagonally upward from the cold air blowing nozzle 10. , 4th
As shown in the figure, the back seat 1b of the chair seat 1
The air rises while attracting secondary air 14 along the rear part of the air.

〔Effect of the invention〕

The present invention has the above configuration, and the chair seat 1
Warm and cold air 13 and 15 are ejected from the hot and cold air blowing nozzles 6 and 10 from the rear of the lower surface, respectively, to heat and cool only the necessary spaces, so in conventional rooms, especially rooms with high ceilings, all the spaces can be heated and cooled. Significant energy savings can be achieved compared to air-conditioning systems. Furthermore, in the case of heating, the thermal environment is always such that the head is cold and the feet are warm, so the pleasant feeling performance of the air conditioner can be greatly improved.

Furthermore, since it does not scatter dust on the floor,
It is more hygienic, and in combination with the above-mentioned temperature environment of cold head and warm feet, it is possible to provide a healthier space for indoor occupants.

[Brief explanation of the drawing]

The attached drawings show an example of the implementation of the present invention, and FIGS. 1 and 2 are central vertical cross-sectional views of main parts showing the internal structure of the blow-out box of the present invention.
Figure 2 is when cooling, Figures 3 and 4 are side views of main parts showing the state of the airflow inside the room, Figure 3 is when heating, and Figure 4 is when cooling. . 1... Chair seat, 1a... Seat seat, 1
b...Back sheet, 2...Hot/cold air supply duct, 3
...Floor surface, 4...Air blowing box, 4a...Bottom surface, 4
b...Front surface, 4c...Top surface, 4d...Rear surface, 5...
... Connection pipe, 6... Warm air blowing nozzle, 7... Warm air blowing switching damper, 8... Cold air opening, 9... Cold air blowing switching damper, 10... Cold air blowing nozzle,
11... Radiation plate and protective rectifier plate, 12... Protection plate,
13...Warm air, 14...Secondary air, 15...Cold air.

Claims (1)

[Scope of Claims] 1. During heating from the rear of the lower surface of the chair seat, hot air is blown diagonally upward and forward through the lower surface of the seat to attract secondary air, creating an upward airflow, and also Heating is performed by heating radiation means,
This forced draft air conditioning method with radiant heating is characterized in that during cooling, cold air is blown along the rear back of a chair seat so as to attract secondary air, creating an upward airflow. 2. A cold and hot air supply duct is provided on the floor behind the lower surface of the chair seat, an air blowing box is connected to the tip of the duct and installed behind the lower surface of the chair seat, and a warm air blowing nozzle is installed diagonally upward in front of the blowing box. A hot air blowing switching damper is installed on the inner surface of the blowing box so that the hot air blowing nozzle can be opened and closed freely, and the rear upper part of the blowing box is opened diagonally upward as a cold air opening. A cold air blowing switching damper with a cold air blowing nozzle protruding inside the cold air opening is rotatably supported so that it can be accommodated, and a radiation plate and protective rectifying plate that opens and closes the diagonal opening is attached to the outside of the diagonal opening, and a heating At times, the cold air blow-off nozzle is accommodated in the blow-off box by the cold-air blow-off switching damper, the diagonal opening is closed with a radiation plate and protective rectifier plate, and hot air is blown from the warm-air blow-off nozzle. Radiant heating characterized in that the wind blowing nozzle is blocked, the cold wind blowing nozzle is projected outside the blowing box by a cold wind blowing switching damper, and the cold wind is rectified and blown out from the cold wind blowing nozzle by a radiating plate and a protective straightening plate. forced draft air conditioner with 3. The forced draft air conditioner with radiant heating according to claim 2, further comprising a protective plate attached to the upper end of the front surface of the outlet box.