JPS6233753Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a heat storage tank that stores hot or cold water for heating and cooling buildings, etc.

The purpose is to propose a heat storage tank in which the heat insulating material can be easily lathed, the machining can be done with high accuracy, and water will not leak over a long period of time.

In recent years, more and more buildings are equipped with heat storage tanks, and the urethane spraying method is one of the methods used to create insulation materials on-site. Since the composition is handled, the working environment is poor, and the thickness and density of the urethane heat insulating layer are uneven, making it difficult to perform highly accurate turning. Therefore, it is difficult to obtain highly accurate thermal insulation using this construction method. In addition, as a method of creating a waterproof layer, a method of forming asphalt roofing waterproofing on the concrete surface of the heat storage tank is used, but this method handles molten asphalt inside the heat storage tank, which has only a narrow and small opening. The temperature inside the tank becomes high and it is filled with odor, creating an extremely poor working environment and making highly accurate turning impossible.
Furthermore, if asphalt waterproofing is applied to the concrete structure before it is completely dry, the adhesion between the structure and the asphalt will be poor, and there is a high risk that it will peel off later.

This idea solves the above problems. The gist of this is that in a heat storage tank whose body is made of concrete and which stores water as a heating medium, heat insulating unit plates made by applying resin latex paste to a thickness of 1 mm or more over the entire surface of plastic foam are attached to each other on the inner surface of the body. This heat storage tank is characterized in that its end faces are laid side by side and crimped together, and a waterproof layer made of resin mortar reinforced with glass fiber cloth is arranged on the surface.

This will be explained below with reference to the embodiments shown in the drawings.

The drawing shows a longitudinal cross section of the heat storage tank, in which a base treatment liquid 3 and a base conditioning resin mortar 4 are placed on the inner surface 2 of a concrete heat storage tank 1 that stores water as a heat medium.
is applied to form a smooth base layer. On this base layer, heat insulating unit plates 6 made by applying resin latex-mixed paste 5 to a thickness of 1 mm or more over the entire surface of the plastic foam are laid out and crimped together with their ends facing each other. The inner surface of the heat storage tank is composed of two resin mortar layers 7 and 8 and a waterproof layer made of glass fiber cloth 9 spread over the layers.

In this embodiment, the heat insulating unit 6 is made of polystyrene foam. However, it is not necessarily limited to polystyrene foam; plastic foams such as polyethylene, polyurethane or polyvinyl chloride can also be used.
Note that the heat insulating unit 6 may be cut in advance to a size that can be carried into the heat storage tank 1 through the opening.

The resin latex-mixed paste 5 used in this example consisted of SB latex, cement, and silica sand, with a mixing ratio of SB latex:cement:silica sand=18:40 kg:20 kg. This paste can be applied uniformly over the entire surface of the plastic foam to a thickness of 1 mm or more to several mm using a trowel or the like.

This resin latex-mixed paste 5 is not limited to that of the above embodiment. As the resin latex, for example, resin latex such as EVA (ethylene vinyl acetate copolymer) or acrylic ester, or rubber latex other than SB latex may be used.

The paste 5 that can be used in this invention is required to have high adhesiveness before drying and to form a strong water-resistant solid layer after drying. The latex described above can satisfy the above requirements.

This heat storage tank stores water as a heat medium in direct contact with the waterproof layer, and since this water is kept at a relatively high temperature for a long period of time, glass fibers are used to prevent the waterproof layer from cracking due to shrinkage. It is reinforced with cloth.

This idea is as described above, and brings about the following effects.

The plastic foam is coated with a paste containing resin latex to a thickness of 1 mm or more, and the surface is covered with a waterproof layer of resin mortar reinforced with glass fiber cloth, so there is no risk of water leakage if the waterproof layer is damaged. There is no risk of the plastic foam getting wet and reducing its insulation performance.

This heat storage tank can be constructed without handling volatile substances such as solvents or high-temperature substances such as molten asphalt when turning the insulation material, improving the working environment inside the heat storage tank and increasing work efficiency and construction accuracy. do.

The heat insulating layer of the heat storage tank can be constructed even when the concrete frame is in a wet state, and can be constructed by workers from a single industry, thereby shortening the construction period.

[Brief explanation of the drawing]

The drawings show the structure of an embodiment, with FIG. 1 being a partial vertical sectional view of the heat storage tank, and FIG. 2 being a sectional perspective view. 1...Heat storage tank, 2...Structure concrete surface, 3
... Base treatment liquid, 4... Base adjustment resin mortar,
5...Resin latex mixed paste, 6...Insulating material unit, 7...Resin mortar, 8...Resin mortar, 9...Glass fiber cloth.

Claims (1)

[Scope of utility model registration request] In a heat storage tank whose frame for storing water as a heating medium is made of concrete, heat insulating unit plates made of resin latex mixed paste coated on the entire surface of plastic foam to a thickness of 1 mm or more are placed on the inner surface of the frame with their ends facing each other. A heat storage layer characterized by having a waterproof layer made of resin mortar reinforced by laying glass fiber cloth on the surface of the laminated sheets that are lined up and crimped together.