A semiconductor thermoelectric-heat pump coupled drying system

By using a semiconductor thermoelectric-heat pump coupled drying system, a multi-stage heating chain is formed by utilizing solar collectors and semiconductor thermoelectric devices. Combined with photovoltaic power generation and complementary power supply from the household power grid, the problems of high energy consumption and poor stability of traditional drying are solved, achieving efficient and low-cost drying results.

CN224434865UActive Publication Date: 2026-06-30培黎职业学院
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
培黎职业学院
Filing Date
2025-08-15
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Traditional hot air drying is energy-intensive and heat-sensitive materials are easily damaged. Heat pump drying efficiency decreases in low-temperature environments. Single heat source systems have low energy efficiency and insufficient waste heat recovery. Furthermore, existing drying systems lack stability and economy.

Method used

The system employs a semiconductor thermoelectric-heat pump coupled drying system, which utilizes solar collectors, semiconductor thermoelectric devices, and heat pump units to form a multi-stage heating chain. Combined with photovoltaic power generation and complementary power supply from the household power grid, it achieves efficient energy utilization and waste heat recovery. The system pre-cools the humid air through a regenerator to prevent the compressor from overheating and ensure stable system operation.

Benefits of technology

It significantly reduces energy consumption, improves drying efficiency, reduces heat damage, lowers operating costs, enhances environmental adaptability and system stability, and achieves efficient utilization of multi-level energy.

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Abstract

This utility model discloses a semiconductor thermoelectric-heat pump coupled drying system. The system includes a drying chamber, a heat pump unit, and a semiconductor thermoelectric device. The heat pump unit includes a solar collector, a condenser, a compressor, and a throttling valve. The solar collector is inclined and internally divided into an upper evaporation chamber and a lower cooling chamber by a partition. The semiconductor thermoelectric device is internally divided into a heating chamber and a cooling chamber by a semiconductor cooling chip. This utility model forms a three-stage heating chain: "regenerator → hot end of semiconductor cooling chip → condenser," achieving efficient multi-stage energy utilization, significantly reducing energy consumption, exhibiting strong environmental adaptability, and using photovoltaic complementary power supply to reduce operating costs.
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