Method for forming 30 degree double-R tube of gasification furnace internal component

Abstract

The invention relates to a method for forming a 30-degree double-R pipe internal part of a gasification furnace. The invention is characterized in that the method comprises the following: step 1, using an extruding press to extrude R elbows of a first pipe, a second pipe, a third pipe and a fourth pipe which have the same pipe diameter which is less than 50mm; step 2, using four bending moulds to bend 100 to 150 mm ends of the elbows of the first pipe, the second pipe, the third pipe and the fourth pipe which are bent with R elbows respectively into double-R shapes at angles beta of 30 degrees to a plane of the elbows; and step 3, using four bending moulds to bend the bent first, second, third and fourth pipes in the step 2 into double-R arc shapes respectively and jointing the four pipes. The method has the advantages of solving the problem of extremely complex pipe forming in IGCC(integrated gasification combined cycle) gasification furnace and effectively controlling size and resilience, positive and negative applicability of moulds and commonality of fixture blocks, and greatly simplifying production and processing process.

Description

technical field [0001] The invention relates to a method for forming a 30° double R pipe of an inner part of a gasifier, which is used in a gasifier of a Huaneng Green Coal Power IGCC project, and belongs to the technical field of pipe forming. Background technique [0002] Huaneng Green Coal Power IGCC (Integrated Gasification Combined Cycle) project gasifier has a complex internal structure and is difficult to manufacture. Segment, close-packed arrangement, irregular conical heating surface, such as figure 2 As shown, it is a schematic diagram of the 30° pipe structure of the internal parts of the gasifier. First, the pipe should be bent. After R2 is bent, there is also the bending of R1, such as figure 2 As shown, several such pipes 1 are finally welded into products. These manufacturing processes have brought great difficulty to the forming of the product. The size, shape and spring rate of the pipe bending are also difficult to control. It has never been manufactured ...

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Problems solved by technology

[0002] Huaneng Green Coal Power IGCC (Integrated Gasification Combined Cycle) project gasifier has a complex internal structure and is difficult to manufacture. Segment, close-packed arrangement, irregular conical heating surface, such as figure 2 As shown, it is a schematic diagram of the 30° pipe structure of the internal parts of the gasifier. First, the pipe should be bent. After R2 is bent, there is also the bending of R1, such as figure 2 As shown, several such pipes 1 are finally welded into products. These manufacturing processes have brought great difficulty to the forming of the product. The size, shape and spring rate of the pipe bending are also difficult to control. It has never been manufactured in China.

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