Iodine working medium flow precision control device and method based on PWM regulation and porous ceramic damping

CN122107172APending Publication Date: 2026-05-29HARBIN XINGWANG POWER TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HARBIN XINGWANG POWER TECH CO LTD
Filing Date
2026-04-21
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing iodine working fluid flow control technology suffers from problems such as lagging regulation methods, limited flow stabilization efficiency, and intolerant material systems, making it difficult to meet the requirements of electric propulsion systems for high performance, low cost, and high reliability.

Method used

A flow control device based on PWM regulation and porous ceramic damping is adopted, including a corrosion-resistant diaphragm valve, a porous ceramic buffer chamber and a fully inert material flow channel structure, combined with active thermal management and an independent electronic control unit to achieve precise flow control.

Benefits of technology

It achieves linear and precise adjustment of the iodine working fluid flow rate within a small range, reduces the risk of material corrosion, improves the stability and response speed of the system, avoids iodine deposition and blockage, and meets the high-frequency switching requirements of electric propulsion systems.

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Abstract

The application provides an iodine working medium flow precision control device and method based on PWM regulation and porous ceramic damping, and belongs to the technical field of gas flow precision control. The device solves the problems of lagging regulation mode, limited steady flow efficiency and poor material system resistance in the prior art. The device comprises a valve body assembly, a buffer steady flow assembly, a heat preservation assembly and a control driving unit. The valve body assembly comprises a corrosion-resistant diaphragm valve, which is provided with an air inlet and an air outlet and is used for controlling the on-off and preliminary flow regulation of the iodine working medium. The buffer steady flow assembly comprises a buffer cavity in communication with the air outlet of the valve body assembly and a porous ceramic damping plug arranged in the buffer cavity. The heat preservation assembly is wrapped outside the valve body assembly and the buffer steady flow assembly. The control driving unit is electrically connected with the valve body assembly and the heat preservation assembly. The device is mainly used in the field of satellites.
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