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A kind of oil transfer line with back-bending arrangement of branch manifolds
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Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A collection tube and oil transfer line technology, which is applied in the direction of vacuum distillation, etc., can solve the problems that the operating pressure requirements of the outlet of the heating furnace cannot be guaranteed, and the asymmetric arrangement of the branch pipes and the branch collection pipes can be solved.
Active Publication Date: 2017-07-04
SINOPEC ENG +1
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[0013] To sum up, the existing layout of the oil transfer line is limited by the outlet position of the furnace tube in the radiant chamber of the heating furnace, and the branch pipes and branch collection pipes cannot be completely symmetrically arranged to ensure the consistency of the outlet pressure of the furnace tube branches. At the same time, the pursuit of It is a low pressure drop requirement and cannot guarantee the necessary furnace outlet operating pressure requirements
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Embodiment 1
[0040] Such as figure 1 As shown in Fig. 1, a kind of oil transfer line with branch collecting pipes bent back.
[0041] 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 pipe includes a straight pipe section, an elbow and a large and small head, and the branch collection pipe includes a straight pipe section, an elbow and a small and large head;
[0042] The branch pipes are arranged symmetrically on both sides of the branch collecting pipe;
[0043] The branch collecting pipes are arranged symmetrically on the left and right sides of the main pipe;
[0044] The branch collectin...
Embodiment 2
[0049] Such as figure 2 As shown in Fig. 1, a kind of oil transfer line with branch collecting pipes bent back.
[0050] Same as embodiment 1, the only difference from embodiment 1 is that the included angle between the turning direction and the flow direction of the main pipe of the oil transfer line is 90 degrees.
[0051] specifically,
[0052] Such as figure 2 As shown, the outlet branch pipe 2 and the branch collection pipe 3 of the radiation chamber of the heating furnace are completely symmetrically arranged to ensure that the operating pressure of the furnace pipe outlet 1 of the radiation chamber of the heating furnace is uniform. 4 furnace tube outlets 1a, 1b, 1c, 1d in the radiant chamber of the heating furnace, each set of 2 are relatively arranged on both sides of the top of the radiant chamber of the heating furnace, vertically upward, and the 4 outlet branch pipes 2a, 2b, 2c, and 2d each form a group of two, symmetrically arranged and connected to branch ma...
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Abstract
The present invention discloses an oil conversion line with branch gathering pipes arranged in a return-bending manner. According to the oil conversion line, a heating furnace radiation furnace pipe outlet and a fractionation tower inlet are connected, branch pipes are symmetrically arranged on both sides of branch gathering pipes, the branch gathering pipes are symmetrically arranged on the left side and the right side of a total pipe, the branch gathering pipes are arranged in a return-bending manner, the return-bending arrangement of the pipelines is achieved by connecting a section of the vertical pipeline and two 90 DEG bending heads or bending pipes, and the included angle between the return-bending arrangement direction of the branch gathering pipes and the oil conversion line material flowing direction is 0-90 DEG. According to the present invention, the completely-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 return-bending 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 arranged symmetrically at 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 ...
Claims
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Application Information
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