Distribution ring and nozzle

By designing wear-resistant alloy nozzles and optimized distribution ring structures in the regenerator, the problems of low distribution circulation efficiency and easy coking and clogging of nozzles in the prior art are solved, and more efficient catalyst fluidization and more uniform gas distribution are achieved, and product yield is improved.

CN222658613UActive Publication Date: 2025-03-25JIANGSU MEIDE NUCLEAR POWER EQUIP CO LTD
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Patent Information

Application Number
CN202421241953.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-03
Publication Date
2025-03-25
Estimated Expiration
2034-06-03

AI Technical Summary

Technical Problem

The distribution circulation efficiency of the prior art is low, and the nozzle is prone to coking and blocking and wear, resulting in abnormal fluidization of the catalyst in the regenerator, resulting in uneven distribution of vortex and gases, affecting the yield.

Method used

A distribution ring and nozzle are designed, which are fixed to the inner wall of the tower body through a limit support assembly. Vertical and inclined nozzle components are provided on the distribution ring. The nozzles are made of wear-resistant alloys cobalt, tungsten and chromium materials, and the nozzle holes are designed as two-stage cylindrical channels.

Benefits of technology

It improves the wear resistance of the nozzle, extends the service life, improves the fluidization efficiency and uniformity of gas distribution, ensures the normal fluidization of the catalyst in the regenerator, and improves product yield.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model discloses a distribution ring and nozzles, which comprise a distribution ring body, the distribution ring body is fixed on the inner wall of a tower body through a plurality of limit support components, a plurality of nozzle components are arranged on the distribution ring body, a nozzle A is vertically arranged, and a nozzle B is obliquely arranged towards the inner side of the distribution ring body. The nozzle A and the nozzle B respectively penetrate through the wall of the distribution ring and extend into the distribution ring, an included angle alpha is formed between the nozzle A and the center of the distribution ring and between the nozzle B and the center of the distribution ring, and a first cylindrical channel and a second cylindrical channel are arranged in the nozzle body. The nozzle is reasonable in structural design, the wear-resistant alloy nozzle is adopted, the nozzle has high wear resistance, the nozzle is not prone to coking, blocking and abrasion, and the service life is prolonged; the two-section type cylindrical channel nozzle hole design is adopted, the jet flow speed is increased, and the fluidization efficiency is high; and through the vertically arranged nozzle A and the obliquely arranged nozzle B, the gas distribution is more uniform, the normal fluidization of the catalyst in the regenerator is ensured, and the product yield is improved.
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