A pipe row preheating device

Abstract

The invention relates to a pre-heating device of a tube bank. The pre-heating device of the tube bank is characterized by comprising a cover body, a heating table and an electronically controlled unit, wherein a heating unit is arranged on the heating table, the cover body is arranged above the heating table, a to-be heated tube bank is placed between the cover body and the heating table, and time for heating the tube bank is set by the heating unit under the control of the electronically controlled unit and according to the preset temperature. Compared with the prior art, the pre-heating device of the tube bank has the advantages that a natural gas combusting device is upgraded through introduction of an internationally advanced combustion idea and a method. As the advanced combusting device, the pre-heating device of the tube bank is capable of greatly improving heating quality of a product. When the advanced heating method is adopted, automatic ignition and flameout are introduced at the same time. Functions are automatically controlled through heating parameters of automatic temperature control and the like, and interferences of human factors are reduced, so that heating of the product is even and controllable, and quality of the product is improved. The efficiency of energy utilization is improved, and the operating environment in a manufacturing shop is improved at the same time.

Description

technical field [0001] The invention relates to a device for preheating pipe rows during the welding process of membrane type splicing. Background technique [0002] At present, in the process of membrane welding, the manufacturing workshop is accustomed to using pinhole flame-throwing tubes to heat the tube row. This method has the following disadvantages: 1. The metal tube wall of the heated tube row is heated unevenly , which can easily lead to weld quality defects; 2. The heating efficiency of the pinhole flamethrower is poor, and the combustion is extremely insufficient. Not only does it need to consume a large amount of natural gas, but also a large amount of carbon on the surface of the workpiece. Under the condition of increasing environmental protection and energy requirements It is not appropriate to continue mass adoption. Contents of the invention [0003] The object of the present invention is to provide a preheating device which can make the tube row heated ...

AI Technical Summary

Problems solved by technology

[0002] At present, in the process of membrane welding, the manufacturing workshop is accustomed to using pinhole flame-throwing tubes to heat the tube row. This method has the following disadvantages: 1. The metal tube wall of the heated tube row is heated unevenly , which can easily lead to weld quality defects; 2. The heating efficiency of the pinhole flamethrower is poor, and the combustion is extremely insufficient. Not only does it need to consume a large amount of natural gas, but also a large amount of carbon on the surface of the workpiece. Under the condition of increasing environmental protection and energy requirements Not suitable for continued mass adoption

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