Built-in prefabricated concrete heat-storage body energy-storage tank

Abstract

The invention belongs to the technical field of solar energy storage, in particular to a built-in prefabricated concrete heat-storage body energy-storage tank. The built-in prefabricated concrete heat-storage body energy-storage tank includes a tank body, a prefabricated concrete heat-storage body, conduction oil and a cylinder mould which is arranged at the periphery of the prefabricated concreteheat-storage body, and the bottom of the tank body is in a round shape; the prefabricated concrete heat-storage body is arranged in the tank body, and the conduction oil is filled over the prefabricated concrete heat-storage body; and the upper of the tank body is provided with a hot oil inlet pipe which is connected with a solar energy collecting device and a guide hot oil outlet pipe which is connected with a vapor generator, and the lower of the tank body is provided with a cold oil outlet pipe which is connected with the solar energy collecting device and a cooling guide hot oil inlet pipe which is connected with the vapor generator. According to the built-in prefabricated concrete heat-storage body energy-storage tank, the prefabricated concrete heat storage body is used for storingthe solar energy, the heat energy is stored in the prefabricated concrete heat storage body, the usage amount of the conduction oil is reduced, the heat storage energy of the energy-storage tank is improved, the heat storage capacity is enlarged, and the use ratio of the solar energy is improved.

Description

technical field [0001] The invention belongs to the technical field of solar energy storage, and in particular relates to an energy storage tank with a built-in prefabricated concrete heat storage body. Background technique [0002] The main means of solar thermal power generation include dish, tower, trough and linear Fresnel. The difference between different methods is mainly in the different forms of solar heat collection, and the basic physical process of power generation is basically the same, which is based on the light energy-electric energy process. The principle of solar thermoelectric technology is to use a solar concentrating system to reflect direct radiation to the surface of a central heat absorber, convert solar energy into thermal energy, and then store the thermal energy and generate electricity through a generator. [0003] Solar energy has the characteristics of intermittent and low heat flow, so it cannot generate power at night or on rainy days. At pre...

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Problems solved by technology

[0004] Existing energy storage devices often use a molten salt tank structure with thermal insulation properties, but the thermal insulation of molten salt tanks has the following problems, high cost of use, unstable energy storage, and high freezing point of molten salt, which will damage the equipment after solidification

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