U-shaped tubular fluidized bed reactor for synthesizing methyl chlorosilane monomer
By employing a semi-tube heat transfer oil chamber and a multi-stage U-tube structure in a U-tube fluidized bed reactor, combined with a funnel-shaped gas distribution plate and a circulating nozzle design, the problems of unsatisfactory heat exchange effect and heat transfer oil leakage were solved, achieving efficient production and safe operation.
CN224442963UActive Publication Date: 2026-07-03HUBEI XINGRUI SILICON MATERIAL CO LTD
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Patent Information
- Application Number
- CN202521326933.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-26
- Publication Date
- 2026-07-03
- Estimated Expiration
- 2035-06-26
AI Technical Summary
Technical Problem
Existing U-tube fluidized bed reactors have problems such as unsatisfactory heat exchange effect, low single-pass conversion rate and high risk of heat transfer oil leakage in the synthesis of methylchlorosilane.
Method used
A U-shaped tubular fluidized bed reactor was designed, which adopts a semi-tube welded heat transfer oil cavity with multiple U-shaped tubes inside, a funnel-shaped gas distribution plate, a nozzle circulation design, an enlarged section structure to reduce powder loss, and heat exchange efficiency through a heat tracing pipe.
Benefits of technology
It improves heat exchange efficiency, reduces the risk of heat transfer oil leakage, extends equipment service life, and enhances production capacity and safety.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model relates to a U-shaped tubular fluidized bed reactor for synthesizing methyl chlorosilane monomers, which comprises a barrel, an upper seal head and a lower seal head which are respectively arranged in the upper direction and the lower direction of the barrel, and a gas-solid phase discharge pipe, a silicon powder feed pipe, an on-plate chloromethane inlet pipe, an under-plate chloromethane inlet pipe, an oil inlet pipe and an oil outlet pipe which are connected with the barrel, the oil inlet and outlet pipe is connected with the fluidized bed reactor through a semi-pipe type welded heat conduction oil cavity, a plurality of U-shaped heat exchange pipes are arranged in the barrel, the two ends of each heat exchange pipe are connected with the oil inlet and outlet cavity respectively, a gas distribution plate is arranged on the lower portion in the barrel, and a silicon powder feeding pipe penetrates through the gas distribution plate to be communicated with the barrel. And a plurality of nozzles are arranged around the barrel above the gas distribution plate, so that the fluidized state effect in the fluidized bed is effectively improved, the conversion per pass of chloromethane is improved, the pressure difference between the inlet and the outlet of the heat exchange tube is greatly reduced, and the flux of heat-conducting oil is improved.
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