An electric heating heat storage heat exchanger

Abstract

The invention relates to an electrically-heated energy-storage heat exchanger and a heat storing and releasing method thereof and solves the problems of non-uniform energy distribution and low energy utilization rate in the heat exchange process of an existing electrically-heated phase change heat storage and exchange device. The electrically-heated energy-storage heat exchanger comprises a tank-shaped shell and an electric heating pipe; the shell is filled with a heat storage medium. The electrically-heated energy-storage heat exchanger is characterized in that a heat exchange pipeline is also arranged in the shell and is vertically folded back in a vertical plane to be coiled in an S-shaped manner; the heat exchange pipeline is folded to and fro in a horizontal plane to be arranged in an S-shaped manner or spirally arranged inside the shell around a circle center; an opening is formed in the upper end of the shell, and a detachable cover plate is arranged at the upper end of the shell; an inlet and an outlet of the heat exchange pipeline penetrate out of the shell from the cover plate; the electric heating pipe extends into the inside of the shell downwards from the cover plate. The electrically-heated energy-storage heat exchanger provided by the invention performs uniform heat exchange on the heat storage medium with poor mobility, so that the heat utilization efficiency is improved.

Description

technical field

[0001] The invention relates to a heat storage device, in particular to an electric heating heat storage heat exchanger. Background technique

[0002] Since China's reform, the economy has developed rapidly, and now its GDP ranks second in the world. China is also experiencing environmental problems experienced by Western developed countries. The large-scale use of primary energy coal and oil in the development process has led to increasingly serious environmental problems. , air pollution, climate warming. In recent years, smog has occurred frequently in many places in my country, seriously affecting people's daily life and health. To this end, the State Council and various provinces and cities have issued air pollution prevention and control policies and implementation plans. Comprehensive rectification and elimination of small coal-fired boilers has been put on the agenda, and "coal to gas" and "coal to electricity" have become the general trend. Among ...

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