Continuous Bending Manufacturing Technology of Serpentine Spiral Fin Heat Exchange Tube
A technology of spiral finned tubes and spiral fins is applied in the field of continuous bending manufacturing process of serpentine spiral fin heat exchange tubes, which can solve the problem of low production efficiency, high production cost and long manufacturing cycle of serpentine spiral fin heat exchange tubes. and other problems to achieve the effect of reducing labor intensity, improving quality and shortening manufacturing cycle
Active Publication Date: 2020-11-27
张家港市昆仑管业有限公司
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Problems solved by technology
The use of welding technology to produce serpentine spiral fin heat exchange tubes has disadvantages such as low production efficiency, easy leakage at the weld, high production cost, and long manufacturing cycle.
Method used
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[0024] The present invention will be further described in detail below in conjunction with specific embodiments and accompanying drawings.
[0025] The continuous bending manufacturing process of serpentine spiral fin heat exchange tubes, the process steps are as follows:
[0026] (1) Produce the finned tubes to be bent on the high-frequency welding spiral finned tube welding machine. The high-frequency welding spiral finned tube welding machine is an existing equipment that can be directly purchased for the production of spiral finned tubes. The spiral fins on the curved finned tube are formed by spirally winding a steel strip, and the welding modules in the high-frequency welding spiral finned tube welding machine are alternately powered on and off during the spiral winding process of the steel strip, so that this implementation The spiral fins on the finned tube to be bent in the example are composed of three welded fin segments and two cold-wrapped fin segments arranged al...
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The invention discloses a continuous bending manufacture technology of an S-shaped heat exchange pipe with spiral fins. The technology comprises the following steps: producing a to-be-bent finned pipeon a high-frequency welding machine for welding the pipe with the spiral fins, spirally winding the spiral fins on the to-be-bent finned pipe by a steel band, and sequentially arranging the spiral fines on the to-be-bent finned pipe by a plurality of welded fin sections and a plurality of cold wound fin sections alternately; 2, dissembling all of the cold wound spiral fins off the to-be-bent finned pipe; and 3, continuously bending the to-be-bent finned pipe into the S-shaped pipe on the pipe bending machine through bending the pipe body at the part of each cold wound fin section, thereby making the S-shaped heat exchange pipe with the spiral fins. The manufacture technology makes the S-shaped heat exchange pipe with the spiral fins by continuously bending the to-be-bent finned pipe fromwhich the cold wound fin sections are disassembled instead of the original welding production technology, so that the production efficiency is greatly increased, the production cost is reduced, and the quality of the heat exchange pipe is also improved as no weld joints are available between the pipe bodies.
Description
technical field [0001] The invention relates to the field of heat exchange tube manufacturing, in particular to a continuous bending manufacturing process for serpentine spiral fin heat exchange tubes. Background technique [0002] The serpentine spiral fin heat exchange tube is a serpentine curved spiral fin heat exchange tube. The straight tube section of this heat exchange tube is equipped with spiral fins, while the bent tube section is light without fins. Tube. Nowadays, the process of welding the bent section and the straight section is generally used to alternately connect each straight section and each bent section in turn to form a serpentine spiral fin heat exchange tube. The use of welding technology to produce serpentine spiral fin heat exchange tubes has disadvantages such as low production efficiency, easy leakage at the weld, high production cost, and long manufacturing cycle. Contents of the invention [0003] The technical problem to be solved by the inv...
Claims
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IPC IPC(8): B23P15/26B21D53/06
CPCB21D53/06B23P15/26
Inventor 顾利宾张宪刚
Owner 张家港市昆仑管业有限公司