JPH05125860A - Heat insulating air film structure - Google Patents

Abstract

PURPOSE:To enhance the heat insulating effect by supporting first and second unit film bodies by cooling the inside of a large space facility by cold air fed out from a cold air blower, and thermally insulating the inside of the facility against external air by the cold air fed in the film bodies. CONSTITUTION:When cold air from a main refrigerator 30 is fed out by a cold air blower 40 through a duct 31, the cold air increases the pressure in the inside of a large space facility to support an air film structure, and to cool the inside. Besides, the cold air flows through the insides of a first unit film body 10 and a second unit film body 20 of the air film structure through a duct 22 by means of a blower 50 so as to thermally insulate the inside of the large space facility against external air. After heat-exchange, the cold air is recovered by the main refrigerator 30 through a duct 11 and cooled, and fed into the cold air blower 40.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adiabatic air film structure, and more specifically, an air structure in which a plurality of tubular first unit film bodies and second cylindrical unit film bodies are continuously formed. The present invention relates to an adiabatic air film structure having a film structure.

[0002]

2. Description of the Related Art Conventionally, in the case of building a refrigerated warehouse or the like, in the prior art, in order to improve the heat insulation effect of the refrigerated warehouse or the like, expensive and large amounts of heat insulating materials had to be used for the roof and wall surfaces. .. In addition, refrigerated warehouses are generally constructed of rebar, steel frames, etc., so the construction period was long.

In recent years, it has been proposed to support an air film roof by making the air pressure inside the structure slightly higher than the outside of the structure, as described in US Pat. No. 4,477,503. The large-scale space facility that has been popularized is widely known. In U.S. Pat. No. 4,477,503, an air pocket or air space is formed between the outer layer sheet and the lining panel, and this air pocket or air space acts as a heat barrier to the inside and outside of the air film roof. Enhances the heat insulation effect between.

[0004]

However, in such a technique, the air pocket or the air space merely forms an air heat insulating layer, and the space between the inside and the outside of the structure is the same as in a refrigerated warehouse. When a large temperature difference is required, a sufficient heat insulation effect cannot be expected.

The present invention has been made in view of the above-mentioned conventional techniques, and an object thereof is to have an extremely high heat insulating effect and to construct a lightweight air film structure, so that steel frame construction and the like are unnecessary, and An object is to provide an adiabatic air film structure that can be shortened.

[0006]

In order to achieve the above object, the present invention provides a structure in which a plurality of cylindrical first unit film bodies and second cylindrical unit film bodies are alternately stacked so that an upper space facility can be installed. The air film structure so as to cover it, the main refrigerator, the cool air blower for sending the cool air sent from the main refrigerator to the inside of the large space facility, and the cool air inside the large space facility to the first
And a duct for collecting the cool air that has passed through the inside of the first and second unit membranes to the main refrigerator, and a large amount of air blown by the cool air blower. The first while cooling the inside of the space facility
And the second unit membrane body is supported, and the inside of the large space facility is insulated from the outside air by the cool air sent to the first and second unit membrane bodies by the blower.

[0007]

A plurality of cylindrical first unit film bodies and second cylindrical unit film bodies are alternately stacked to form an air film structure, and cold air flows in the first unit film body and the second unit film body. Flows.
This cold air is cooled by the main refrigerator, and is blown into the large space facility by the cold air blower. The cold air cools the inside of the large space facility, maintains the inside at a set low temperature, and supports the air film structure from the inside of the large space facility.
In this way, the cool air inside the large space facility cools the inside, and is further blown into the first and second unit film bodies by the blower so as to flow inside the first and second unit film bodies. The outside of the first and second unit membranes is heated by the outside air, and heat is exchanged between these hot air and the cool air sent to the outside to insulate the heat of the outside air into the large space facility. There is. The cold air after the heat exchange is collected in the main refrigerator by the duct, cooled again, and then sent to the cool air blower for circulation and use.

[0008]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 shows a large space facility using the adiabatic air film structure according to the present invention. The air film structure of this large space facility is, as shown in FIG. 2, the first unit film bodies 10 formed in a plurality of laterally continuous tubular shapes, and the large space of the first unit film body 10. It is composed of a plurality of second unit film bodies 20, 20 formed in a tubular shape inside the facility and continuous in the lateral direction. The first unit film body 10 has a tubular shape having a spindle-shaped cross section by the outer film 10A on the outside air side and the first film material 10B.
The unit film body 20 is formed into a tubular shape by the second film material 20A inside the large space facility whose ends are bonded to the abdominal portions of the adjacent first film materials 10B and 10B. Both ends of the first unit film body 10 and the second unit film body 20 are closed and supported by the ground. The air film structure has a semi-cylindrical dome shape as a whole, and the cool air blower 40 described later
It is supported by making the air pressure inside the large space facility slightly higher than outside the large space facility.

A main refrigerator 30 is arranged outside the large space facility. This main refrigerator 30 has a plurality of ducts 1
1, 11 communicate with one end of the first unit film body 10, and further communicate with one end of the second unit film body 20 through a plurality of ducts (not shown). Further, a cold air blower 40 is arranged inside the large space facility, and the cold air blower 40 communicates with a main refrigerator 30 outside the large space facility via a duct 31. Furthermore, inside the large space facility,
A blower 50 is provided. The blower 50 communicates with the other end of the first unit film body 10 via a plurality of ducts (not shown), and further communicates with the other end of the second unit film body 20 via a plurality of ducts 22, 22. There is.

When the cool air from the main refrigerator 30 is blown out by the cool air blower 40 through the duct 31 into the large space facility constructed as described above, the cold air increases the pressure inside the large space facility. Supports the air film structure, cools the inside, and keeps the inside at a set low temperature.

The cool air is blown into the first unit film body 10 and the second unit film body 20 from the blower 50 through the duct 22 and the like, and flows in the first unit film body 10 and the second unit film body 20. It has become. At this time, the inside of the first unit film body 10 and the second unit film body 20, especially the inside of the first unit film body 10 is heated by the outside air, so that the outside air and the sent cool air are heated. Exchange. This prevents the heat of the outside air from being transferred to the inside of the large space facility, so that the inside of the large space facility can be insulated from the outside air. The cold air after the heat exchange is collected in the main refrigerator 30 via the duct 11 and the like, cooled again, and then sent to the cold air blower 40 to be circulated and used.

FIG. 3 is a side view showing another embodiment of the heat insulating air film structure according to the present invention. In this example,
A plurality of wire anchors 6 outside the grounded portion of the air film structure
0 and 60 are installed, both ends of the wire 70 are fixed to the wire anchor 60, and the wire 70 is arranged outside the air film structure to prevent the air film structure from shaking due to strong wind or the like.

Further, a part of the film material having an air film structure may be formed into a transparent sheet 80 to be used as a light collector inside the large space facility.

Furthermore, if the floor inside the large space facility shown in FIG. 1 is made of a floor material having a high heat insulating property, it is possible to prevent external heat from being transferred from the floor surface to the inside of the cooled large space facility.
The heat insulating effect can be made even more effective.

[0015]

As described above, in the adiabatic air film structure according to the present invention, a plurality of cylindrical first unit film bodies and second cylindrical unit film bodies are alternately stacked to cover the upper part of the large space facility. And the main refrigerator, the cool air blower for sending the cold air sent from the main refrigerator to the inside of the large space facility, and the cool air inside the large space facility to the first and second unit film bodies. And a duct that collects the cool air that has passed through the inside of the first and second unit membranes to the main refrigerator, and cools the inside of the large space facility with the cool air sent from the cool air blower. While supporting the first and second unit film bodies, the first and second unit membrane bodies are supported by the blower.
Also, since the inside of the large space facility is insulated from the outside air by the cool air sent to the second unit membrane, it has an extremely high heat insulation effect, and by constructing with a lightweight air membrane structure, steel frame construction etc. It is not necessary and the construction period can be shortened. Also, because the air that exists in nature is used,
It is economical.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional perspective view of a large space facility using an adiabatic air film structure according to the present invention.

FIG. 2 is a front sectional view of an adiabatic air film structure according to the present invention.

FIG. 3 is a side view showing another example of a large space facility using the adiabatic air film structure according to the present invention.

[Explanation of symbols]

 10 First Unit Membrane 20 Second Unit Membrane 11 Duct 22 Duct 30 Main Refrigerator 31 Duct 40 Cold Air Blower 50 Blower 70 Wire

Claims (1)

[Claims] 1. An air film structure for covering an upper part of a large space facility by alternately stacking a plurality of cylindrical first unit film bodies and second unit film bodies, a main refrigerator, and The cool air blower for sending the cool air sent from the main refrigerator to the inside of the large space facility and the cool air inside the large space facility are referred to as the first
And a duct for collecting the cool air that has passed through the inside of the first and second unit membranes to the main refrigerator, and a large amount of air blown by the cool air blower. The first while cooling the inside of the space facility
And the second unit membrane body is supported, and the inside of the large space facility is insulated from the outside air by the cool air blown into the first and second unit membrane bodies by the blower. ..