Phase change energy storage balcony wall-mounted water heater

Abstract

A phase change energy storage balcony wall-mounted water heater comprises a solar heat collector and a heat exchange water tank, a heat preservation layer is arranged between an inner container and a shell of the heat exchange water tank and filled with heat preservation materials, an electric heating mechanism, a cold water pipe, a hot water pipe and a magnesium rod are arranged in the inner container, and a preheating pipe sleeve is arranged on the partial surface of the cold water pipe in the inner container. And the preheating pipe sleeve is filled with a phase change heat storage material. The preheating pipe sleeve filled with the phase change heat storage materials is arranged on the cold water pipe of the heat exchange water tank, the phase change heat storage materials are used for heat storage and preheating, energy consumption is effectively reduced, the heat exchange efficiency of the water tank is improved, and the heat exchange water tank has the advantages of being compact in structure, convenient to install and attractive in appearance.

Description

TECHNICAL FIELD

[0001] The utility model relates to solar energy utilization equipment field, concretely relates to a phase change energy storage balcony wall -hanging water heater. BACKGROUND

[0002] Balcony wall -hanging solar water heater is a new generation of water heater developed for high -rise building, it solves the problem that high -rise building can not install solar water heater, and the balcony wall -hanging solar water heater is mainly composed of solar collector and water tank, but the present balcony wall -hanging solar water heater is limited by the size of high -rise balcony and the installation angle of collector is small, and the heat collection effect of solar energy system is poor, and the temperature rise is small, and the water temperature can not meet the requirement of user in many cases, and user must use electric heating water tank to wash bath, if the water consumption is small, the energy is wasted by heating the excess water. In addition, the existing balcony wall -hanging solar water heater relies on the water tank to store heat alone, and the required water tank volume is large and heavy, whether it is installed indoors or outdoors, it is difficult to realize the integration of solar water heater and balcony. SUMMARY

[0003] The utility model aims at providing a phase change energy storage balcony wall -hanging water heater to solve the problems of high energy consumption, large water tank volume, troublesome installation and unattractive appearance of the existing solar water heater.

[0004] The utility model discloses a technical scheme that solves the technical problems:

[0005] A phase change energy storage balcony wall -hanging water heater, including solar collector and heat exchange water tank, the inner container and the shell of heat exchange water tank are provided with the heat preservation layer, the heat preservation layer fills the heat preservation material, the inner container is provided with electric heating mechanism, cold water pipe, hot water pipe and magnesium bar, the part surface of cold water pipe in the inner container is provided with preheating pipe sleeve, and the inside of preheating pipe sleeve fills phase change heat storage material.

[0006] The utility model sets up the preheating pipe sleeve filled with phase change heat storage material on the cold water pipe of the existing balcony wall -hanging water heater, the specific heat capacity of heat storage material is small, and the specific heat capacity of water is 4.18J·g–1·K–1, which is the largest material of specific heat capacity, the specific heat capacity of heat storage material is small, in the case that the collector absorbs the same heat, heat storage material is below the phase change point, and the temperature rise is faster than water, because the phase change temperature of heat storage material is low, when the substance changes phase, a large amount of heat can be absorbed, when using water, the heat storage material preheats the water in the cold water pipe, and the phase change heat storage material with large density and small space occupation is used to replace part of water, so that the volume of water tank can be greatly reduced under the condition of ensuring the same temperature rise.

[0007] The preheating pipe sleeve filled with the phase change heat storage material is arranged on the cold water pipe of the heat exchange water tank, heat storage and preheating are achieved by using the phase change heat storage material, energy consumption is effectively reduced, heat exchange efficiency of the water tank is improved, and the preheating pipe sleeve has the advantages of compact structure, convenient installation and attractive appearance. BRIEF DESCRIPTION OF DRAWINGS

[0008] The utility model is further explained below in combination with the drawings and specific embodiments.

[0009] Figure 1 It is a structural schematic view of the utility model.

[0010] In the figure, 1 is a solar heat collector, 2 is a heat exchange water tank, 3 is an inner container, 4 is a thermal insulation layer, 5 is an electric heating mechanism, 6 is a cold water pipe, 7 is a hot water pipe, 8 is a magnesium rod, 9 is a preheating pipe sleeve, and 10 is phase change heat storage material. DETAILED DESCRIPTION

[0011] As shown in the figure: a phase change energy storage balcony wall-mounted water heater, comprising a solar heat collector 1 and a heat exchange water tank 2, a thermal insulation layer 4 is arranged between the inner container 3 and the shell of the heat exchange water tank 2, the thermal insulation layer 4 is filled with thermal insulation material, an electric heating mechanism 5, a cold water pipe 6, a hot water pipe 7 and a magnesium rod 8 are arranged in the inner container 3, a preheating pipe sleeve 9 is arranged on the surface of the cold water pipe 6 in the inner container, and the preheating pipe sleeve 9 is internally filled with phase change heat storage material 10.

[0012] The utility model discloses a preheating pipe sleeve filled with phase change heat storage material is arranged on the cold water pipe of the existing balcony wall-mounted water heater, the specific heat capacity of the heat storage material is small, the specific heat capacity of water is 4.18J·g–1·K–1, which is the largest material of specific heat capacity, the specific heat capacity of the heat storage material is small, in the case that the heat collector absorbs the same heat, the heat storage material is below the phase change point, and the temperature rise is faster than water, because the phase change temperature of the heat storage material is low, a large amount of heat can be absorbed when the substance changes phase, when water is used, the heat storage material preheats the water inlet in the cold water pipe, the phase change heat storage material with large density and small space occupation is used to replace part of the water, so that the volume of the water tank can be greatly reduced under the condition of ensuring the same temperature rise.

[0013] For example, the phase change heat storage material adopts paraffin, 100L water absorbs 8MJ heat, the water tank filled with pure water has a temperature rise of 19 degrees, the preheating pipe sleeve is filled with paraffin phase change material with a phase change temperature of 55 degrees, the specific heat capacity of paraffin is 2.1J·g–1·K–1, the phase change latent heat is 220KJ / KG, and the density is 0.9g / cm3, and the same 8MJ heat is absorbed, and the water tank has a temperature rise of 25 degrees, so that 50L paraffin can complete the heat exchange efficiency of 100L water, so that the volume of the water tank can be reduced, the installation space requirement of the water tank is reduced, and the water tank is improved.

Claims

1. A phase change energy storage balcony wall-mounted water heater, comprising a solar collector and a hot water exchange tank, wherein an insulation layer is installed between the inner tank and the outer shell of the hot water exchange tank, the insulation layer is filled with insulation material, and an electric heating mechanism, cold water pipes, hot water pipes, and a magnesium rod are installed in the inner tank, characterized in that... The surface of the cold water pipe in the inner container is provided with a preheating pipe sleeve, and the inside of the preheating pipe sleeve is filled with phase change heat storage material.

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