A solid particle bed gas distribution system and gas distribution method

Abstract

A gas distribution system and method for a solid particle bed, comprising a pressure stabilizing system, a steady flow system, a gas distribution system, a spray chamber, a solid particle container and solid particles. The present invention realizes the automatic, continuous, stable and uniform gas distribution and reaction gas supply to the solid particle bed through the gas distribution system with special three-dimensional structure controlled by classification Problems such as uneven gas, clogging and wear. Further, by setting the gas distribution system and gas distribution injector with a specific three-dimensional structure, the end gas velocity of the gas distribution system is ensured, the probability of system blockage is greatly reduced, and the particle abrasion of the gas distribution injector is avoided to the greatest extent. The invention has a high degree of automation and a wide application range, greatly reduces the operating intensity, improves the reliability of the process flow, and is suitable for the gas distribution and reaction gas supply of most solid particle beds under the harsh conditions of normal pressure, high temperature and high pressure .

Description

technical field [0001] The invention relates to a gas distribution system and a gas distribution method in the field of energy and chemical industry, in particular to a solid particle bed gas distribution system and a gas distribution method. Background technique [0002] The solid particle bed involves a complex gas-solid two-phase flow process. The loosening of the bed and the reaction gas supply system are important supporting systems for solid particle beds including fixed beds, ebullated beds, transport beds, fluidized beds, and entrained flow beds. The advanced solid particle bed gas distribution system can establish a complete fluidized field and provide reaction gas supply that meets the process requirements, ensuring that the reaction process is carried out in accordance with the process requirements. [0003] The existing disclosed technology, the solid particle bed gas distribution method mainly has the following problems: 1. It is difficult to achieve uniform and...

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Problems solved by technology

[0003] The existing disclosed technology, the solid particle bed gas distribution method mainly has the following problems: 1. It is difficult to achieve uniform and stable gas distribution. Due to the complex nature of the downstream bed, the uniformity and flexibility of the existing gas distribution technology are very low. Difficult to realize, the bed is prone to local uneven gas distribution and local hot spots; 2. Solid particles are easy to block the gas distribution pipeline. Since the bed is composed of particles of different particle sizes, the end of the gas distribution system is easily blocked, resulting in The stability of some air distribution technologies is difficult to meet the requirements of industrial production; 3. The end of the air distribution system is easy to wear and difficult to replace. The air distribution nozzles of the prior art are in direct contact with solid particles, and high-speed moving particles can easily cause the air distribution nozzles to be damaged. The terminal system is worn out, and mostly adopts a fixed design, and it is extremely difficult to replace and repair once a failure occurs

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