Large temperature difference air temperature type gasifier with automatic defrosting and phase change heat transfer function

By employing forced convection ventilation, phase change heat transfer, and natural defrosting technologies, the problems of low heat transfer efficiency and large equipment size in ambient air vaporizers have been solved, achieving highly efficient and energy-saving air heating.

CN122407966APending Publication Date: 2026-07-17BEIJING XINXING ZHIYUAN ENG DESIGN SERVICE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING XINXING ZHIYUAN ENG DESIGN SERVICE CO LTD
Filing Date
2025-08-26
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing ambient air vaporizers suffer from low natural air convection rate, small temperature difference, and low heat transfer coefficient, resulting in large equipment size, low energy density, and the need for defrosting measures or backup equipment.

Method used

By increasing airflow velocity and expanding temperature difference through forced convection ventilation, adopting phase change heat transfer technology and dual-path blowers, combined with refrigerant injection and metal wire mesh filtration, and designing manifold and funnel structures, natural defrosting and refrigerant recovery are achieved, reducing equipment size and energy consumption.

Benefits of technology

The air-side heat transfer coefficient is increased by 50 times, the equipment volume and heat exchange area are reduced to 1-2% of the original, and the power of the fan and refrigerant circulation pump accounts for less than 2% of the total load, achieving high efficiency and energy saving.

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Abstract

本发明公布了一种带自动除霜和相变传热功能的大温差空温式气化器,属于低温领域。它利用大温差,高流速提高空气的焓差、能量密度,减少空气流量和截面尺寸,利用混合制冷剂相变传热增大空气侧传热系数,减少换热面积;利用联箱、漏斗和液封技术将气‑液‑固进行三相分离实现自动除霜以及制冷剂回收利用。
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