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Pipe fitting for conveying high pressure acetylene

A technology of pipe fittings and acetylene, which is applied in the direction of pipe components, pipes/pipe joints/pipe fittings, pipes, etc., can solve the problems of large waste, difficult processing, and long processing time of small filling pipes, so as to reduce waste, realize safe transportation, The effect of simplifying the structure

Inactive Publication Date: 2015-04-29
SHANGHAI TIANSEN CHENYE CHEM ENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the above-mentioned problems that the existing elbow welds for high-pressure acetylene transportation cannot be detected, and the pipe fittings such as tees, vents, and showers have long processing time, high processing difficulty, and large waste of small filling pipes, etc., the present invention provides a Pipe fittings for high-pressure acetylene transportation. This pipe fitting does not require flaw detection of elbows, and can effectively solve the problems of long processing time, difficult processing, and large waste of small filling pipes, etc.

Method used

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  • Pipe fitting for conveying high pressure acetylene
  • Pipe fitting for conveying high pressure acetylene
  • Pipe fitting for conveying high pressure acetylene

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] see figure 1 , which is the longitudinal section structure diagram of the elbow in the pipe fittings for high-pressure acetylene transportation. Among them, flange 2, tube bundle mother tube, tube bundle 3, packing 4, etc. are connected in sequence as shown in the figure, and the tube bundle near the flange end is flush with the flange surface. The filler adopts φ6×6mm plastic Raschig rings, the outer diameter of the tube bundle parent tube is 500mm, and the wall thickness of the tube bundle is 12mm; the tube bundle outer diameter is 10mm, the tube bundle wall thickness is 0.5mm, and the material of the tube bundle is stainless steel thin-walled tube; After 6 months of trial operation, the pipe fittings are running normally.

Embodiment 2

[0020] see figure 2 , which is the vertical cross-sectional structural diagram of the tee in the pipe fittings for high-pressure acetylene transportation. Among them, the distance between the tube bundle and the filler contact end in the branch main pipe and the outer wall of the main pipe main pipe shall not be greater than 10mm. The filler adopts φ6×6mm plastic Raschig rings, the outer diameter of the main tube of the tube bundle is 500mm, and the wall thickness of the main tube is 12mm; the outer diameter of the tube bundle is 10mm, the wall thickness of the tube bundle is 0.5mm, and the material of the tube bundle is stainless steel thin-walled tube; the tube bundle in the branch tube main tube is in contact with the filler The end is flush with the outer wall of the main pipe in charge. Under the acetylene pressure of 2.5MPa, after 6 months of trial operation, the pipe fitting operates normally.

Embodiment 3

[0022] see image 3 , which is the vertical cross-sectional structure diagram of the oblique tee in the pipe fittings for high-pressure acetylene transportation. The angle between the inclined tube and the straight tube can be any angle between 0-90°, which is determined according to the process requirements. The angles between the inclined pipe and the straight pipe used in this example are 30° and 60°. The filler adopts φ6×6mm plastic Raschig rings, the outer diameter of the tube bundle parent tube is 500mm, and the wall thickness of the tube bundle is 12mm; the tube bundle outer diameter is 10mm, the tube bundle wall thickness is 0.5mm, and the material of the tube bundle is stainless steel thin-walled tube; After 6 months of trial operation, the pipe fittings are running normally.

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Abstract

Disclosed is a pipe fitting for conveying high pressure acetylene. The pipe fitting is characterized in that the pipe fitting comprises a bent pipe, a tee, a tilted tee and a cross; pipe bundles are densely filled in a main pipe, raschig ring fillers are filled in the pipe fitting, sizes of the raschig ring fillers meet the requirement that the maximum straight-line distance of any gap between the fillers and fillers on the plane perpendicular to the flowing direction of the acetylene doesn't exceed 20mm, straight pipe sections at two ends of the pipe fitting are filled with pipe bundles, sizes of the pipe bundles meet the requirement that the maximum straight-line distance of any gap between the pipe bundles and the plane perpendicular to the flowing direction of the acetylene doesn't exceed 20mm, and the main pipe and a flange are welded. The pipe fitting is simple in structure, convenient to process and low in manufacture cost.

Description

technical field [0001] The invention relates to chemical equipment, in particular to a pipe fitting for conveying high-pressure acetylene, which is widely used in the chemical industry for dissolving acetylene and using acetylene as raw material. Background technique [0002] Acetylene is an important industrial raw material. It is active in nature and easy to participate in or initiate reactions such as addition, oxidation, polymerization and metal substitution. It can be used to prepare a variety of important chemical products. Acetylene is also widely used in lighting, welding and metal Cutting (oxy-acetylene flame), etc. Acetylene is the simplest alkyne. The presence of carbon-carbon triple bonds makes it very unstable and prone to decomposition and explosion. Therefore, the safe operation of acetylene is a topic that needs to be paid close attention to in the acetylene chemical industry and acetylene dissolution operations. Walter Reppe, the originator of modern acetyl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L43/00F16L41/02F16L41/03
Inventor 陆一心司鹏郭栋王银亮林铁军
Owner SHANGHAI TIANSEN CHENYE CHEM ENG TECH
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