Shell side multi-chamber multi-layer fixed bed reactor

A technology of fixed bed reactor and multi-layer bed, applied in the direction of chemical/physical process, chemical instrument and method, etc., can solve the problems of high equipment operation cost, less reaction waste heat, large output energy consumption, etc., to improve heat exchange Efficiency, saving operating costs, and improving production capacity

Active Publication Date: 2011-11-30
西安航天华威化工生物工程有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing devices have the following problems: 1. The production capacity of a single device is limited, which cannot meet the needs of market development; 2. When the device is in use, the energy consumption per unit output is large, the effective utilization rate is low, and the operating cost of the device is high; 3. The device is mobile The heat is uneven, and the temperature difference inside the equipment is large; 4. The residual heat of the reaction is too little to be fully utilized

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Shell side multi-chamber multi-layer fixed bed reactor
  • Shell side multi-chamber multi-layer fixed bed reactor
  • Shell side multi-chamber multi-layer fixed bed reactor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] see figure 1 , At present, the shell-and-tube fixed-bed reactor adopts the structure of one chamber on the shell side, which consumes a lot of energy per unit of output, low effective utilization rate, and high equipment operating cost; it is easy to cause heat concentration and it is difficult to remove it uniformly; And the residual heat of reaction is too little to be fully utilized.

[0035] see figure 2 , image 3 , further elaborating on the structure implemented by the present invention: this tubular fixed-bed reactor includes an upper head tube box 1, an upper tube plate 2, a first section shell 4, a reaction tube 5, and a first section shell side baffle 8. The middle tube sheet 9, the second section shell 13, the lower tube sheet 14, the lower head tube box 15, the second section shell side baffle 16, etc. constitute the main body of the reactor, and the first section shell 4 is provided with The first section of the upper ring road 3 and the first section ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a shell-side multi-cavity multi-layer fixed-bed reactor. At present, the shell-and-tube fixed-bed reactors all adopt the structure of one chamber on the shell side, so the heat transfer is uneven, the heat exchange is insufficient, and the waste heat is not better utilized. The shell of the present invention is composed of an upper shell and a lower shell. In each shell, two shell-side baffles are arranged between the upper tube sheet and the lower tube sheet along the axial direction of the shell. The shell-side baffles separate the shell Divided into three cavities, reaction tubes are set in the cavities on both sides, and three semicircular baffles are set in the cavities on both sides, so the flow form of the heat exchange medium between the tubes is cross flow and parallel flow. The invention doubles the ability to manufacture large-scale reactors under the condition of existing equipment; the reactor can be applied to high-load catalysts, and has stable reaction, uniform heat transfer, sufficient heat exchange and more thorough utilization of waste heat.

Description

Technical field: [0001] The invention relates to a shell-side multi-cavity multi-layer fixed-bed reactor, which is mainly used in the field of large-scale acrylic acid and other fields where multi-layer fixed beds are used for gas-phase oxidation reaction. Background technique: [0002] With the rapid development of the chemical industry, the requirements for chemical equipment are becoming more and more large-scale. The large-scale chemical equipment has great benefits in terms of ease of operation, energy saving and consumption reduction, and reduction of production and operation costs. The existing devices have the following problems: 1. The production capacity of a single device is limited, which cannot meet the needs of market development; 2. When the device is in use, the energy consumption per unit output is large, the effective utilization rate is low, and the operating cost of the device is high; 3. The device is mobile The heat is not uniform, and the temperature d...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): B01J8/04
Inventor 邰向阳赵仕哲郭新峰
Owner 西安航天华威化工生物工程有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap