JP4646021B2 - Cooling method of exhaust gas from air conditioning system using roof garden - Google Patents

Description

The present invention belongs to a technology for cooling exhaust gas from an air conditioning system using a roof garden.

With the progress of urbanization, temperature rise due to exhaust gas from heat pump air conditioning facilities in buildings or exhaust from cooling towers installed on the roof has become one of the causes of exacerbating the heat island phenomenon. It is not done.

The present invention provides a means for reducing the heat island phenomenon by cooling and exhausting warm exhaust from an air conditioning system for cooling purposes.

The present invention lays a water-impervious sheet on the roof surface, arranges a storage member on the water-impervious sheet to form an arrangement, the storage member arranges to form a space inside the arrangement, and Covering the lower surface of the arrangement with a sheet makes the lower part of the arrangement a storage tank for water storage, so that a part of the cylinder having an opening on the side is immersed in the water stored in the storage tank In the roof garden where the space inside the arrangement is filled with a wet member that retains moisture by having a gap , and the surrounding area of the arrangement is partially greened, an air conditioning system in the cylinder The exhaust gas from the air-conditioning system is cooled by introducing the exhaust gas from the air-conditioning system and exhausting the exhaust gas from the surface of the arrangement that has not been greened through the wet member. The temperature of the exhaust gas from the air conditioning system is reduced by the heat of vaporization by passing exhaust gas through the gap between the wet member and the water stored in a storage tank such as rainwater provided on the rooftop.

The present invention is directed to contacting warm water from an air conditioning system with water in a cylinder immersed in a storage tank, and a wet member filled in a space inside an arrangement provided outside the cylinder. It is cooled by the heat of vaporization by passing between the gaps and passing between plants.

Hereinafter, the present invention will be described in detail with reference to the drawings.
FIG. 1 is a conceptual diagram showing a method for cooling exhaust gas from an air conditioning system according to the present invention.
As shown in the figure, a rubber-made water-impervious sheet is laid on the roof, a storage member is arranged on the roof, and a connection required by the type of the storage member is used to form an arrangement. As the storage member, those generally used for a storage tank or an infiltration tank for the purpose of suppressing outflow of rainwater and effective use of rainwater can be used. Examples of these storage members are shown in FIG. A storage tank is formed by covering the lower surface of the arrangement formed by the storage member with a water-impervious sheet. The space inside the arrangement is filled with a wet member.

A cylindrical body having an opening on the side surface is disposed in the storage tank, and a part of the cylinder is immersed in rainwater stored in the storage tank. Warm exhaust from an air conditioning system (not shown) is introduced into the cylinder. The introduced exhaust gas is discharged through the gap of the upper wet member while contacting the rainwater in the cylinder. Meanwhile, the temperature is reduced by heat of vaporization.

The wet member to be filled in the space inside the arrangement is a foamed glass cullet, pumice, or other particulate material having pores inside it, or a mat-like material composed of string-like, fiber-like or untwisted cloth, and exhaust gas. Are easy to pass through and have a large surface area.

The greening material may be a plant growing pot filled with plant growing soil arranged around the arrangement. The pot for plant growth may be a generally used pot, but the pot shown in FIG. 4 is more preferably used. As shown in the figure, the pot has connecting portions on both side surfaces and can be connected to each other, and at the same time, a convex portion rising from the bottom surface is provided. This convex part is intended to prevent the movement of the soil and to support human treading pressure when taking care of plants. Since this convex part supports the stepping pressure of the person, the soil does not harden and the growth of the plant is not hindered. It is preferable not to arrange the greenery around the arrangement without leaving a gap, but to leave a part of the side or upper surface and leave an exhaust gas exhaust.

FIG. 2 shows another embodiment of the present invention.
A water pipe having an opening on the surface is passed through the upper part of the cylinder used in the method of cooling the heated exhaust gas from the air conditioning system shown in FIG. 1, and the lower wetting member is wetted while circulating the water. The contact efficiency with moisture is increased. The water used for circulation can use the water in a storage tank. Existing technologies can be used for water circulation.

An example of the storage member is shown in FIG. It is preferable to change the type and shape of the wet member to be filled depending on the shape of the storage member. For example, since the storage member shown in FIG. 3a has a container-like shape, it is convenient to fill the inside with a wet member on the granule, and the storage member shown in FIG. It is preferable that the tubular portion is butted and a string-like wet member is stretched between two opposing flat plate portions. The same applies to the storage member shown in FIG. 3d. In the storage member shown in FIG. 3c, the granular wet member can be filled in the gap as it is or wrapped with a net.
If the side surface is largely open at the time when the arrangement is configured, adjustment is made so that this object is achieved according to the shape of the storage member, such as covering with a side plate having an opening as appropriate.

The conceptual diagram of the cooling method of the exhaust gas from the cooling system of this invention is shown. It is a conceptual diagram of the cooling method of the exhaust gas from the cooling system of this invention, and shows another example. It is a conceptual diagram of the storage member which can be used for this invention. The example of the pot for plant cultivation used for a green thing is shown.

DESCRIPTION OF SYMBOLS 1 Storage tank 2 Impermeable sheet 3 Storage member 4 Wetting member 5 Tubular body 6 Water piping 7 Plant growth pot 8 Rooftop

Claims (1)

A water-impervious sheet is laid on the roof surface, a storage member is arranged on the water-impervious sheet to form an arrangement, and the storage member is arranged to form a space inside the arrangement, and the arrangement by the water-impermeable sheet The lower part of the arrangement is covered with a storage tank by covering the lower side of the object, and the cylinder having an opening on the side of the storage tank is arranged so that a part of the cylinder is immersed in the water stored in the storage tank, In the roof garden where the space inside the arrangement is filled with a wetting member that retains moisture by having a gap , and the surrounding area of the arrangement is partially green , the exhaust gas from the air conditioning system in the cylinder The exhaust gas is cooled from the air conditioning system by passing through the wet member and exhausting it from the surface of the arrangement that has not been greened .

Images