CN201745936U - Double layer heat preservation water tank - Google Patents

Abstract

The utility model discloses a double-layer thermal insulation water tank. At present, the thermal insulation effect of the thermal insulation water tank is mostly achieved by the interlayer between the inner tank and the outer shell being provided with thermal insulation material. The thermal insulation effect increases with the increase of the thickness of the thermal insulation layer. Obviously, there is room for improvement. The utility model adds a vacuum layer between the insulation layer and the inner tank, and the air is isolated so that the heat diffusion loses the medium. After testing, when the water temperature is heated to 100°C, it will not be reheated within 24 hours, and the water temperature will only drop by 10°C. , it can be seen that the utility model has double-layer thermal insulation effect, slow thermal diffusion, small heat loss, high thermal insulation efficiency, and has the practical significance of energy saving and emission reduction.

Description

A double-layer insulation water tank

technical field

The utility model relates to a thermal insulation water tank, in particular to a thermal insulation water tank with double-layer thermal insulation effects. the

Background technique

At present, the thermal insulation effect of the thermal insulation water tank is mostly realized by the interlayer between the inner tank and the outer shell provided with thermal insulation material. To achieve the purpose of heat preservation, the speed of thermal diffusion is related to the thickness of the foam material, the thicker the foam material, the slower the thermal diffusion, and vice versa. In order to slow down the thermal diffusion as much as possible, a thick foam material must be used, but this makes the water tank bulky, increases the cost, and affects the appearance of the water tank. In order to overcome this drawback, the utility model patent application with the publication number CN201203288 discloses a double-layer thermal insulation water tank for solar water heaters, which is composed of polyurethane integral foam and double-sided EPE aluminum foil composite film for double thermal insulation. Obviously, this is an effective improvement measure, which plays a positive role in improving the thermal insulation effect of the hot water tank without increasing the volume of the hot water tank. The more direct effect of using double-sided EPE aluminum foil composite film is to affect heat radiation, but in fact heat radiation has relatively little effect on heat loss, and the greater influence is heat conduction and heat diffusion, while air is the direct source of heat conduction and heat diffusion. The light-wave duality of the medium and particles can only be reflected in the air. Therefore, only isolating the water tank from the air is the best way to preserve heat. By searching, it is not found that the method of isolating the water tank from the air is used for preparing the technical disclosure of the hot water tank. the

Contents of the invention

The purpose of this utility model is to provide a double-layer thermal insulation water tank, which uses the principle of reducing heat diffusion and heat conduction speed by isolating air, minimizes heat loss, improves heat preservation effect, and overcomes the defect of excessive heat loss in existing thermal insulation water tanks. the

The above purpose is achieved through the following technical measures, a double-layer thermal insulation water tank, including an inner tank, an interlayer is arranged between the inner tank and the outer shell, and an insulating layer composed of foaming material is arranged between the intermediate interlayer and the outer shell , a vacuum layer is set between the inner liner and the middle interlayer. the

The utility model that adopts above-mentioned measures adds a layer of vacuum layer between the liner and the insulation layer. We all know that air is a good medium for heat conduction. In the air, the heat diffuses quickly, the heat conduction speed is high, and the heat loss is also fast. Therefore, isolating the air is the best way to prevent heat loss. Obviously, placing the vacuum layer in the inner tank The outside, wrapped around the liner, is a great way to keep heat out. The utility model has been tested. When the water temperature is heated to 100°C, the water temperature will only drop by 10°C without reheating within 24 hours. It can be seen that the utility model has double-layer heat preservation effect, slow thermal diffusion, and small heat loss. , high heat preservation efficiency, has the practical significance of energy saving and emission reduction. the

Description of drawings

In order to describe the utility model in detail, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. the

Fig. 1 is the front view of the utility model;

Fig. 2 is the A-A sectional view of Fig. 1;

Fig. 3 is a B-B sectional view of Fig. 1 . the

Detailed ways

As shown in the accompanying drawings, the utility model has a cylindrical shape, but the cylindrical shape is only one of the embodiments, and the shape can also be square, rectangular, elliptical, or spherical. As shown in Fig. 2 and Fig. 3, the utility model has an inner bag 1, an insulating layer 2 made of a foam material, and a shell 3. Between the liner 1 and the insulation layer 2, there is a vacuum layer 4, the vacuum layer 4 is formed by wrapping the liner 1 with the interlayer 5, and the distance between the interlayer 5 and the liner 1 is 10-30 mm , the degree of vacuum in the vacuum layer 4 is -0.08～-0.1Mp. Both the interlayer 5 of the liner 1 and the shell 3 are made of metal materials. Implementing the utility model only needs conventional mechanical preparation technology, the key is to take out the air in the vacuum layer 4, first prepare the liner 1 and the intermediate interlayer 5 through molding equipment, and then extract the air in the vacuum layer 4 to make the vacuum The vacuum degree in layer 4 reaches -0.08～-0.1Mp. Put it in the shell 3 again, and then carry out overall foaming by foaming equipment, foam the heat-insulating material and wrap it in the outer surface of the interlayer 5 and in the shell 3 to form the heat-insulating layer 2. the

Claims (3)

1. A double-layer insulated water tank, comprising an inner container, an intermediate interlayer is arranged between the inner container and the outer shell, and an insulating layer made of foaming material is arranged between the inner inner container and the outer shell, and is characterized in that the inner container (1 ) and the intermediate interlayer (5) are provided with a vacuum layer (4). 2. The double-layer thermal insulation water tank according to claim 1, characterized in that the distance between the middle interlayer (5) and the inner tank (1) is 10-30 mm. 3. The double-layer thermal insulation water tank according to claim 1, characterized in that the degree of vacuum in the vacuum layer (4) is -0.08～-0.1Mp.

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