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Conical coil manufacturing process

A production process and coil technology, which is applied in the field of conical coil production, can solve problems such as the inability to guarantee product dimensional accuracy requirements, cone product height and angular dimension deviation, etc., to meet product design performance requirements, reduce assembly difficulty, The effect of simplifying the staking process

Active Publication Date: 2017-09-05
DONGFANG BOILER GROUP OF DONGFANG ELECTRIC CORP
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

Among them, the top cone, bottom cone and other conical coolers are composed of light pipes and round steel structures to form different water flow cooling circuits. The main manufacturing method is that single pipe rings of different diameters are assembled and welded on the tooling. The welding shrinkage deformation causes Can not guarantee product size accuracy requirements
[0003] At present, both at home and abroad believe that in the manufacturing process, the welding in the horizontal direction and the vertical direction of the coil pipe assembly is uniformly shrunk. The horizontal direction and the vertical direction mentioned here refer to the radial direction and height direction of the conical coil respectively. All are designed according to the angle of the product drawing, resulting in problems such as height and angle size deviations in the assembled cone products

Method used

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Embodiment Construction

[0018] The following takes a manufacturing process of a conical cooling coil as an example to illustrate, as follows:

[0019] Such as figure 1 , figure 2 As shown, when making single-coil pipes with different diameters, the diameter of the steel pipe and round steel is selected according to the application of the product, and the length of each group of bent pipe 2 and bent round steel 3 is determined by the sum of the diameter expansion size and the machining allowance And cut off, the cut steel pipe and round steel are bent into bends of different diameters on a special-shaped pipe bender or molded into bends and round steel 3, and the bend 2 or bent round steel 3 is an open Bending into an approximate 360-degree circular ring, the arc length required for the bent pipe 2 or the bent round steel 3 can be cut according to actual needs, generally 1 / 3, 1 / 2 or the length of the entire arc.

[0020] During the design of the tooling cone 1, the shrinkage compensation for weldin...

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Abstract

The invention relates to the technical field of conical coil pipe manufacturing and discloses a conical coil pipe manufacturing process. The process includes the following steps that one-loop pipes of different diameters are manufactured; a tool conical platform (1) is designed and manufactured; the one-loop pipes of different diameters are assembled to the tool conical platform; all the one-loop pipes are taken out after being assembled ready, and all the adjacent one-loop pipes are welded for forming a final product; the product size is detected and recorded, when the tool conical platform is designed and the one-loop pipes of different diameters are assembled, welding shrinkage compensation in the vertical direction is given, welding shrinkage compensation in the vertical direction is mainly given, and the height of a product conical body and the taper angle size accuracy are guaranteed.

Description

technical field [0001] The invention relates to the field of tapered coil manufacture. Background technique [0002] The main internal parts of the gasifier are composed of membrane wall gasification chamber, conical cooling coils such as top cone and bottom cone, slag screen, slag mouth cooler and so on. Among them, the top cone, bottom cone and other conical coolers are composed of light pipes and round steel structures to form different water flow cooling circuits. The main manufacturing method is to assemble and weld single pipe rings of different diameters on the tooling. The welding shrinkage deformation causes The dimensional accuracy requirements of the product cannot be guaranteed. [0003] At present, both at home and abroad believe that in the manufacturing process, the welding in the horizontal direction and the vertical direction of the coil pipe assembly should be uniformly shrunk. All are designed according to the angle of the product drawing, resulting in p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K31/02
CPCB23K31/02
Inventor 奚旭张俊冉骥王冬平郑刚吕孝男
Owner DONGFANG BOILER GROUP OF DONGFANG ELECTRIC CORP
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