A heat pipe type particle electric heater

By using a phase change working fluid circulating in the evaporation and condensation sections of a heat pipe-type particle electric heater, the problems of high material cost and wear in traditional electric heaters at ultra-high temperatures are solved, achieving efficient heat transfer and low-cost particle heating.

CN115623622BActive Publication Date: 2026-05-26COMPRESSED EXPANSION UNIT FOR HIGH-TEMPERATURE HEAT PUMP & HIGH-TEMPERATURE HEAT PUMP ENERGY STORAGE SYSTEM +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
COMPRESSED EXPANSION UNIT FOR HIGH-TEMPERATURE HEAT PUMP & HIGH-TEMPERATURE HEAT PUMP ENERGY STORAGE SYSTEM
Filing Date
2022-09-30
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

In existing technologies, solid particles have low heat transfer coefficients, making it difficult to achieve efficient heat transfer and resulting in high costs. Existing technologies also struggle to maintain structural stability and service life in electric heaters operating at ultra-high temperatures.

Method used

A new heat pipe granular electric heater is adopted, which includes an evaporation section, a condensation section and a connecting component. The heat pipe granular electric heater reduces material costs and wear and improves heat transfer efficiency by circulating heat transfer through the phase change working fluid between the evaporation section and the condensation section.

Benefits of technology

It achieves reduced material costs and wear at ultra-high temperatures, improved heat transfer efficiency, and ensures structural stability and heat exchange performance.

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Abstract

This invention discloses a heat pipe type particle electric heater, comprising a heating chamber and several heat pipe units. The heating chamber has a heating cavity, a particle inlet, and a particle outlet. Each heat pipe unit includes an evaporation section, a condensation section, and a connecting assembly. Both the evaporation and condensation sections have working fluid cavities and are connected by the connecting assembly. The evaporation section is located outside the heating chamber, and the condensation section extends into the heating chamber. The working fluid cavity contains a phase change working fluid. The evaporation section is a conductive heating material section for heat exchange with the phase change working fluid, and the condensation section is a wear-resistant heat transfer material section for heat exchange with both the phase change working fluid and the particles. This invention replaces the structure of traditional electric heating tubes, eliminating the need for large amounts of expensive metal protective sleeves, fillers, and heating core wires required for surface heat load, significantly reducing wear damage to the structure from particles at ultra-high temperatures, while ensuring good heat exchange between the structure and the particles.
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