Incrustation sediment retardation device

Abstract

The invention discloses a begrime distributor, which can overcome the defects of present technique which uses begrime box or the layer of protective agent to cause fast increase of pressure drop and influence on the normal operation in the working process. The invention comprises a begrime distributing base plate and a begrime device. Wherein, said begrime device is arranged on the begrime distribution base plate; the begrime device is a sleeve barrel structure formed by outer and inner cylinder cages; the top of begrime device has a baffle; the side walls of outer and inner cages have overflow holes distributed from up to down; the bottom of inner cylinder cage and the distributing base plate of begrime device have open structures at their relative positions to the bottom of inner cylinder cage; and stuffing or protective agent is filled between the outer and inner cylinders according to the demand. The inventive begrime distributor has advantages including gas-liquid distribution, unimproved pressure drop, prolonged working period, better operation flexibility, wider application to variable mediums, and high availability ratio of stuffing (protective agent) in the working process. The invention can be used in variable fixed-bed reactor, especially in the area of petrochemical industry.

Description

technical field [0001] The invention relates to a delayed fouling device, which belongs to the internal components of reactors, especially the internal components of fixed-bed reactors in petrochemical industry, and is especially used for filtering metal impurities, suspended particles and easy scaling in liquids in fixed-bed reactors. Fouling member on which matter acts. Background technique [0002] In many fixed bed reaction processes, since the feed often contains some solid substances, these solid substances will be deposited on the top of the catalyst bed, causing the bed pressure drop to be too high or even blocked, shortening the operation period and increasing the operation cost. Although the raw materials can be filtered, after the raw materials enter the system, there will be some solid impurities in the materials due to equipment corrosion and other reasons. In addition, some materials will produce scaling substances under the reaction conditions, which cannot pa...

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The above-mentioned technologies have not been able to effectively solve the problem of exces...

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