Efficient energy-saving nested heat storage device

Abstract

The invention discloses an efficient energy-saving nested heat storage device. The efficient energy-saving nested heat storage device comprises a heat insulation shell, and a columnar hollow heat storage module is arranged in the heat insulation shell. An adjusting sleeve assembly for adjusting the heat exchange mode is arranged in the heat storage module, and a heat exchange disc is arranged in the adjusting sleeve assembly. The heat insulation shell comprises a columnar cavity for containing the columnar heat storage module and a conical cavity for containing a flow diffusing structure. According to the efficient energy-saving nested heat storage device, a cylindrical heat storage form is adopted, a heat exchange hole in a heat storage body is perpendicular to the axis of the heat storage module, heat energy distribution in the heat storage body is optimized, quick and stable temperature rising can be achieved, and quick heat transferring is achieved; the heat exchange disc is arranged in the heat storage module, a radiation heat exchange and convectional heat exchange-radiation heat exchange mode is achieved, and when the work temperature of the heat storage module changes, adjustment can be carried out in time; and therefore power consumption waste is avoided, the resistance of an air system is reduced, the service life of a fan is prolonged, the heat exchange efficiency isenhanced, the use time of the fan is shortened, and the system operation cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of heat storage and heating, and in particular relates to a high-efficiency and energy-saving nested heat storage device. Background technique [0002] With the continuous growth of the urbanization process and the rapid development of the heating industry, since 2000, the urban heating area in northern my country has increased exponentially. By the end of 2016, about 10% of the world's energy was used for heating various buildings in winter. In 2017, urban heating energy consumption in northern my country was 201 million tce (tons of standard coal), accounting for 21% of building energy consumption. The primary energy consumption is huge and the environmental pollution is serious. The Ministry of Industry and Information Technology, the National Development and Reform Commission and the National Energy Administration have clearly proposed to comprehensively promote the energy-saving technological transforma...

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Problems solved by technology

[0004] In the stage of energy release, the external power released by each part of the radiator is required to be constant. The traditional cuboid solid heat storage device shows inconsistent heat release rate in the axial direction of the heat dissipation channel of the heat storage body, which is specifically manifested in the cooling of the windward side of the heat storage body. The speed is much higher than that on the leeward side, and part of the heat storage body does not release the internal heat. During the continuous heat storage and heat release process of the heat storage body, the gap increases, which eventually leads to a decrease in the overall effective heat storage capacity and energy storage efficiency. Problems such as high maintenance rate

The heating season fan runs 24 hours a day, consumes a lot of electricity and energy, and the operating cost remains high

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