Purification device and purification apparatus

By using a structure consisting of a heating element and a heat sink in the purification device, the catalyst layer is heated to improve its high-temperature activity, which solves the shortcomings of activated carbon and catalytic filters and achieves a highly efficient formaldehyde removal effect.

CN122305567APending Publication Date: 2026-06-30GD MIDEA ENVIRONMENT APPLIANCES MFG

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GD MIDEA ENVIRONMENT APPLIANCES MFG
Filing Date
2024-12-31
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

In existing technologies, activated carbon filters have limited adsorption capacity and are prone to secondary pollution, while catalytic filters have poor activity and high air resistance at room temperature, resulting in low purification efficiency.

Method used

The purification device, composed of heating elements and heat sinks, features a catalyst layer with high activity at high temperatures. The heating elements heat the catalyst layer, allowing it to maintain its activity in a high-temperature environment for an extended period, thus improving purification efficiency. Furthermore, by optimizing the area and air resistance ratio of the purification device, the probability of contact between the catalyst and formaldehyde molecules is increased.

Benefits of technology

While reducing wind resistance, it significantly improves purification efficiency. The catalyst layer maintains long-term activity at high temperatures, effectively removing formaldehyde with a purification efficiency of over 80%.

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Abstract

This invention discloses a purification device and a purification apparatus. The purification device includes at least one heating element and several heat sinks connected to the heating element. A catalyst layer is provided on the surface of both the heating element and the heat sinks. The surface area of ​​the purification device is S1, and the cross-sectional area of ​​the purification device along the airflow direction is S2, satisfying the condition: S1 / S2>5. The technical solution of this invention aims to improve the formaldehyde removal purification efficiency of the heating element, and to enhance the high-temperature stability of the formaldehyde removal catalytic reaction while reducing the air resistance of the purification device.
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