Method for making screw shell heat-exchanger
A manufacturing method and technology of spiral casing, which is applied in the field of spiral casing heat exchangers, can solve the problems of not being suitable for making ring-shaped large-scale spiral casing heat exchangers, and large investment, so as to improve heat exchange efficiency and overcome direct contact Effect
Inactive Publication Date: 2009-06-24
韩军
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Problems solved by technology
[0003] The present invention aims to solve the defects in the manufacturing method of the spiral casing heat exchanger in the prior art that the required equipment and its supporting molds require a large investment, and are not suitable for making a large spiral casing heat exchanger with a small ring shape, and provide a A manufacturing method of a spiral casing heat exchanger, which does not require special equipment for bending pipes, is not only suitable for the manufacture of large spiral casing heat exchangers, but is also particularly suitable for the manufacture of small spiral casing heat exchangers
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[0018] combined reference figure 1 and figure 2 , a manufacturing method of a spiral casing heat exchanger, taking the manufacturing process of an elliptical coiled spiral casing heat exchanger as an example: in the process of forming a single-turn casing of the heat exchanger spiral, a straight line corresponding to the turn A section of the straight circular tube 101 is directly used as a section of the casing 1. After the heat exchange tube bundle 2 directly passes through the straight circular tube 101 section, the heat exchange tube bundle section passing through the bending part on one side of the ring is bent accordingly. Then select two pieces of semi-pipe shells 1031 and 1032 that can form the section of curved tubes butt joints, put the corresponding bent parts of the heat exchange tube bundles in the tubes, and then weld the seams to form the ring tubes The constituent segment 103 of the bent part is welded to the corresponding port of the straight circular tube 1...
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The invention discloses a manufacturing method of a helical casing heat exchanger. In the process of forming a helical single-turn casing of the heat exchanger, the heat exchange tube bundle section passing through the bending part of the turn is firstly bent with a corresponding degree of curvature, and then selected The multi-piece semi-pipe shells that can form a section of curved tubes are butted, and the corresponding bent parts of the heat exchange tube bundle are placed in the tubes, and then the seams are welded to form a section of the bent section of the ring sleeve tube. It is welded with the corresponding port of the sleeve forming section of the previous sequence and the next sequence, so that the sleeve can be extended turn by turn to form a spiral finished product. The method of the invention does not need special equipment for bending pipes, and is not only suitable for the manufacture of large spiral sleeve heat exchangers, but also particularly suitable for the manufacture of small spiral sleeve heat exchangers.
Description
technical field [0001] The invention relates to a manufacturing method of a spiral casing heat exchanger. Background technique [0002] At present, spiral casing heat exchangers have been widely used in water chillers, household air conditioners, water source heat pumps and water ring heat pumps. The spiral coiling methods mainly include oval coiling, rectangular coiling and circular coiling. etc. For the spiral casing heat exchanger with the above-mentioned coiling methods, the usual manufacturing method is: firstly, the heat exchange tube bundle is inserted into the casing with sufficient length, and then the whole casing is bent successively by bending equipment to form an ellipse. Spiral casing heat exchangers such as shaped coil, rectangular coil or circular coil. The equipment required by this manufacturing method is not suitable for manufacturing high-power spiral sleeve heat exchangers with smaller ring shapes. In the internal heat exchange tube bundles adopted by...
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IPC IPC(8): F28D7/10F28D7/16
Inventor 韩军
Owner 韩军