Winding sheet high frequency welding feeding device

A feeding device and high-frequency welding technology, which is applied in the field of high-frequency welding feeding devices around sheets, can solve the problems of unfavorable heat transfer area and heat transfer efficiency, etc., to extend the heat transfer path, improve heat transfer efficiency, and increase heat transfer efficiency. The effect of hot area

Pending Publication Date: 2018-04-06
江阴戴勒姆动力设备有限公司
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  • Application Information

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Problems solved by technology

In the existing welding, the material belt around the sheet is a flat and smooth material belt, which is introduced into the spiral welding machine through the feeding guide device. Because the material belt is flat, it is not conducive to improving the heat exchange area and heat exchange efficiency. The existing technology continues a kind of energy Feeding device for high-frequency welding of winding sheets to improve heat exchange efficiency

Method used

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  • Winding sheet high frequency welding feeding device
  • Winding sheet high frequency welding feeding device
  • Winding sheet high frequency welding feeding device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A sheet-wound high-frequency welding feeding device, including a feeding pair of rollers 1, a high-frequency magnetic induction heating coil, a rolling pair of rollers, a cooling assembly, and a discharging pair of rollers 2 arranged in sequence along the flow direction. The belt 3 is input from the feed pair of rolls 1, and is sequentially processed on the high-frequency magnetic induction heating coil, the rolling pair of rolls, and the cooling assembly, and then output from the discharge pair of rolls 2; The roll 4 and the lower hot rolling roll 5, the upper hot rolling roll 4 and the lower hot rolling roll 5 all include a flat section 6 that cooperates with the welding side edge 13 of the winding sheet material strip and a rolling section that cooperates with the heat exchange side edge 12 of the winding sheet material strip Section 7, the rolling section 7 includes rolling convex ribs 8 and rolling concave ribs 9 uniformly distributed around the upper hot rolling ro...

Embodiment 2

[0035]Further optimization of Example 1, the rolling concave rib 9 and the rolling convex rib 8 are arranged at intervals on the upper hot rolling roll 4 and the lower hot rolling roll 5, and the thickness of the rolling rolling rib 8 is along the starting end of the rolling section 7 It gradually increases to the outer end, and the depth of the rolling rib 8 gradually increases along the starting end of the rolling section 7 to the outer end.

[0036] The surfaces of the rolling concave ribs 9 and the rolling convex ribs 8 are in a smooth transition shape and are connected to each other to form a wavy rolling surface around the upper hot rolling roll 4 and the lower hot rolling roll 5 .

[0037] Limiting ribs 14 are provided at the ends of the upper hot rolling roll 4 and the lower hot rolling roll 5 close to the welding side 13 of the winding strip. The limiting rib 14 is annular, and the protrusion is arranged on the ends of the upper hot roll 4 and the lower hot roll 5 clo...

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Abstract

The invention discloses a sheet-wound high-frequency welding feeding device, which comprises a pair of feeding rollers, a high-frequency magnetic induction heating coil, a pair of rolling rollers, a cooling assembly and a pair of discharging rollers arranged in sequence along the direction of flow operation, The sheet material belt is input from the feeding pair of rollers, and is sequentially processed on the high-frequency magnetic induction heating coil, the rolling pair of rollers, and the cooling assembly, and then output from the discharging pair of rollers. By using the feeding device described in this application, during the feeding process, the heat-exchanging heat-exchanging side of the winding sheet material can be hot-rolled, and the non-flat surface is pressed out at the end of the heat-exchanging side, and the spiral After welding, a concave-convex heat exchange surface is formed, which increases the heat exchange area and improves heat exchange efficiency, while the welding side of the sheet material strip is still flat, which is convenient for welding with the main pipe, and improves the heat exchange without affecting the welding Effect.

Description

technical field [0001] The invention relates to a feeding device for high-frequency welding around a sheet. Background technique [0002] Existing coal-fired boilers in power stations use spiral finned tubes for heat exchange to improve the utilization of coal and recover waste heat. The spiral fins of the existing spiral finned tubes are welded to the main body by spirally welding the winding strips, so as to increase the heat exchange area of ​​the heat exchange tubes and improve the heat exchange efficiency. In the existing welding, the material belt around the sheet is a flat and smooth material belt, which is introduced into the spiral welding machine through the feeding guide device. Because the material belt is flat, it is not conducive to improving the heat exchange area and heat exchange efficiency. The existing technology continues a kind of energy A high-frequency welding feeding device for winding sheets to improve heat exchange efficiency. Contents of the inv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C37/26
CPCB21C37/26
Inventor 梅国忠甘国华余城
Owner 江阴戴勒姆动力设备有限公司
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