Two procedure radiation furnace tube of novel structure and arrangement
A new structure, radiant furnace tube technology, used in cracking, hydrocarbon cracking to hydrocarbon production, non-catalytic thermal cracking and other directions, can solve the problems of shortening the service life of furnace tubes, uneven heating of furnace tubes, bending deformation, etc., to avoid bending deformation. , the effect of simple mechanical structure
Active Publication Date: 2009-05-13
CHINA PETROLEUM & CHEM CORP
View PDF3 Cites 4 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0009] In order to overcome the disadvantages of the existing connection structure and arrangement of radiant furnace tubes that make the furnace tubes heated unevenly, easily produce bending deformation, and shorten the service life of the furnace tubes, the purpose of the present invention is to provide a new structure and arrangement The cracking furnace uses two-pass radiation furnace tubes, which can make the radiation furnace tubes receive uniform heat in the circumferential direction, and at the same time eliminate the additional force of the eccentricity of the bottom connecting parts on the radiation furnace tubes, avoid bending and deformation of the radiation furnace tubes, and prolong the cracking process. Furnace operating cycle, extending the service life of radiant furnace tubes
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0044] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0045] Figure 1A , Figure 1B , Figure 1C , Figure 1D Shown are four new structures and layout diagrams of the first embodiment of the two-pass radiation furnace tube used in the cracking furnace of the present invention. This embodiment is composed of an inlet pipe 1 and an outlet pipe 2 to form each 1-1 type radiant furnace tube, the 1-1 type radiant furnace tube is vertically arranged in the center of the cracking furnace radiant chamber, the plane where the radiant furnace tube is located There are bottom burners and side wall burners on both sides, or there may be no side wall burners. Usually, as Figure 1A , 1B , 1C, 1D, 1E, 1F, 1G, 1H, 1I, each 1, 3, 5 or 7 1-1 furnace tubes can be a group, and multiple groups of such 1 furnace tubes can be arranged in the radiation room -Type 1 radiant furnace tube. Each outlet pipe is connected with...
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
| Property | Measurement | Unit |
|---|---|---|
| length | aaaaa | aaaaa |
| length | aaaaa | aaaaa |
| length | aaaaa | aaaaa |
Login to View More
Abstract
The disclosed radiation furnace pipe for pyrolysis furnace comprises a 1-1 type arranged radiation furnace tubes consisting an induction pipe and an outlet pipe, and a 2-1 type arranged radiation furnace tubes consisting two parallel induction pipes and an outlet pipe, wherein the induction pipe the outlet pipe are on a common plane surface, the bottom portions of the induction pipes and the outlet pipes are connected with a three-dimensional U-shaped connection piece. The invention can achive more homogeneous temperature distribution in the radiation chamber.
Description
technical field [0001] The invention relates to two high-temperature radiation furnace tubes for ethylene cracking furnaces. Background technique [0002] Since the successful development of cracking furnaces with vertical suspension of radiant furnace tubes in the 1960s, ethylene cracking technology has been developing continuously. Such as research and development in shortening residence time, improving cracking selectivity, increasing product yield, reducing product energy consumption and enhancing adaptability to cracking raw materials. So far, 99% of the world's ethylene production is produced by pyrolysis of petroleum fractions, and the equipment responsible for this pyrolysis reaction is the cracking furnace. [0003] As we all know, the ethylene cracking furnace is the most critical equipment in the ethylene plant, and the investment in the cracking furnace usually accounts for about 20-25% of the entire ethylene plant, and one of the most critical equipment in the ...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): C10G9/14C07C4/04
Inventor 何细藕李保有李昌力薄建民邵晨涂国华孙向军刘海军李延生赵旭郭英锋
Owner CHINA PETROLEUM & CHEM CORP