A variable frequency dual-tower desiccant dryer

By using an intelligent closed-loop control system and a quick-lock mechanism, the problem of regeneration gas mismatch under varying operating conditions in the dual-tower desiccant dryer is solved, achieving dynamic matching between regeneration gas volume and inlet gas volume, reducing energy consumption, and improving dew point stability and adsorbent life.

CN224506695UActive Publication Date: 2026-07-17FUJIAN YIPUSI IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FUJIAN YIPUSI IND CO LTD
Filing Date
2025-08-20
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing dual-tower adsorption dryers cannot dynamically adjust the regeneration gas volume under varying operating conditions, resulting in energy waste, unstable dew point, and shortened adsorbent life.

Method used

It adopts an integrated intelligent closed-loop control system, which monitors in real time through flow meters and dew point sensors, dynamically adjusts the ratio of regeneration gas volume to intake air flow, and combines a quick-lock mechanism and plug-in adsorbent assembly to achieve rapid replacement and good sealing performance.

Benefits of technology

It achieves precise matching between regeneration gas volume and intake gas volume, reduces energy consumption, improves dew point stability and adsorbent life, and enhances equipment operating efficiency and reliability.

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Abstract

This utility model discloses a variable frequency adjustable dual-tower desiccant dryer, comprising: a base; two adsorption tanks disposed on the base; a lower pipe assembly disposed below the two adsorption tanks, the lower pipe assembly including an air inlet pipe connected to an air inlet; and an upper pipe assembly disposed above the two adsorption tanks, the upper pipe assembly including an air outlet pipe connected to an air outlet. This utility model solves the core problem of regeneration gas mismatch in existing dual-tower desiccant dryers under varying operating conditions by integrating an intelligent closed-loop control system. The control module dynamically adjusts the opening of the regeneration flow regulating valve by real-time merging the inlet air flow signal from the flow meter and the outlet dew point signal from the dew point sensor, ensuring that the regeneration gas volume changes strictly proportionally to the actual inlet air flow. The control module automatically reduces the regeneration gas volume according to a preset proportional coefficient, maintaining the ratio of regeneration gas volume to inlet air flow within the optimized range, avoiding energy waste and dew point instability caused by a fixed regeneration strategy.
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