A kind of oil transfer line with relative turning of branch manifolds
A technology of collecting pipes and oil transfer lines, which is applied in vacuum distillation and other directions, and can solve the problems that the branch pipes and branch collecting pipes cannot be symmetrically arranged, and the operating pressure requirements of the outlet of the heating furnace cannot be guaranteed.
Active Publication Date: 2017-07-04
SINOPEC ENG +1
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Problems solved by technology
[0013] To sum up, the existing layout of the oil transfer line is limited by the outlet position of the furnace tube in the radiation chamber of the heating furnace, and the symmetrical arrangement of the branch pipes and branch collection pipes cannot be realized to ensure the consistency of the outlet pressure of the furnace tube branches. At the same time, the pursuit is Low pressure drop requirement, cannot guarantee necessary furnace outlet operating pressure requirement
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[0043] Such as figure 1 As shown, a kind of oil transfer line in which the branch manifold turns relatively.
[0044] Connecting the outlet of the radiation furnace tube of the heating furnace and the inlet of the fractionation tower, it is composed of a branch pipe, a branch collection pipe and a main pipe, the branch pipe is connected to the outlet of the radiation furnace pipe of the heating furnace, the main pipe is connected to the entrance of the fractionation tower, and the branch collection pipe is connected to the branch pipe and the main pipe. The branch pipes include straight pipe sections, elbows and large and small ends, and the branch collecting pipes include straight pipe sections, elbows and large and small ends; the branch pipes are symmetrically arranged on both sides of the branch collecting pipes; the branch collecting pipes are symmetrically arranged on the left and right sides of the main pipe; The left and right branch collection pipes turn corresponding...
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The present invention discloses an oil conversion line with relatively turning branch gathering pipes. According to the oil conversion line, a heating furnace radiation furnace pipe outlet and a fractionation tower inlet are connected, a left branch gathering pipe and a right branch gathering pipe mutually and correspondingly turn, the branch gathering pipe on the left side turns to the right side and is connected to an oil conversion line total pipe from the right side of the oil conversion line total pipe, and the branch gathering pipe on the right side turns to the left side and is connected to the oil conversion line total pipe from the left side of the oil conversion line total pipe. According to the present invention, the symmetrical arrangement of the heating furnace radiation chamber furnace pipe outlet oil conversion line branch pipe and the branch gathering pipe is adopted as the principle, such that the basically equal pressure at the heating furnace radiation chamber furnace pipe branch outlet is ensured; and under the premise of meeting of the thermal stress compensation requirements, through the progressive diameter expanding arrangement of the large head and the small head and the turning arrangement of the branch gathering pipes, the stable flow state requirement of the gas-liquid two-phase liquid flowing inside the oil conversion line and the heating furnace radiation chamber furnace pipe branch outlet operation pressure requirement are met.
Description
technical field [0001] The invention relates to the technical field of process pipeline design in petroleum refining and petrochemical production equipment, mainly relates to a section of process pipeline from the branch outlet of the furnace tube in the radiation chamber of the heating furnace to the feed section of the fractionation tower, and furthermore, relates to an adjustable The oil transfer line for the outlet pressure of the heating furnace tube. Background technique [0002] In the field of refining and chemical industry, the process pipeline connecting the furnace tube outlet of the heating furnace radiation chamber to the fractionation tower inlet is usually called the oil transfer line, which is generally composed of branch pipes, branch manifolds and header pipes. Branch pipes and branch collection pipes are often called transition sections, that is, a section of pipe between the outlet of the furnace tube in the radiation chamber of the heating furnace and th...
Claims
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IPC IPC(8): C10G7/06
Inventor 张成黄晓三王秋萍章忻袁毅夫
Owner SINOPEC ENG