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Metal pipe butt-joint circumferential seam heating device

A heating device, butt ring technology, applied in metal processing equipment, auxiliary devices, furnace types, etc., can solve the problems of uneven heating of the heated metal pipe wall, lack of temperature measurement, monitoring, and low energy utilization efficiency, reducing The effect of human factor interference, improving energy efficiency and improving product quality

Inactive Publication Date: 2013-06-26
SHANGHAI BOILER WORKS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has the following disadvantages: first, the heated metal pipe wall is not evenly heated, which can easily lead to weld quality defects; large natural gas resources
Third, the heating effect depends on manual operation and control, lack of temperature measurement and monitoring

Method used

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  • Metal pipe butt-joint circumferential seam heating device
  • Metal pipe butt-joint circumferential seam heating device
  • Metal pipe butt-joint circumferential seam heating device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Such as figure 1 As shown, the heating device for the butt circular seam of metal pipes provided in this embodiment includes a ring-shaped heating ring 1 , a height-adjustable frame 2 and a control unit 3 . The heating ring 1 and the control unit 3 are installed on the frame 2 through methods such as lines / pipelines / threads / welding.

[0024] to combine figure 2 , the heating ring structure 1 carries out 360°circular uniform heating of the metal pipe in the non-rotating state, which is mainly composed of a ring frame 10, a swivel 11, a metal fiber heating plate 12, a roller 13 and a position locking handle 14, etc. . Ring frame 10 comprises left half ring frame and right half ring frame, is connected by pin shaft between left half ring frame and right half ring frame, makes left half ring frame can turn over, as image 3 As shown, after flipping in place, the flip angle is 140°. After the left half ring frame is turned inwards into place, it is locked by the positio...

Embodiment 2

[0032] Such as Image 6 As shown, another metal pipe butt circular seam heating device provided in this embodiment includes a frame 2 , a control unit 3 and a heating block 4 . The heating block 4 and the control unit 3 are installed on the frame 2 through methods such as lines / pipelines / threads / welding.

[0033] The two heating blocks 4 are arranged at an angle, one of the heating blocks 4 is designed as a fixed connection, and the other heating block 4 is designed as a pin connection and can be turned down. The range of the angle a between the two heating blocks 4 is: 70°~150°. The arc-shaped angle plate 41 with through holes at different positions is fixed on the fixed heating block 4, the middle part of the angle adjustment rod 42 is hinged and fixed, the inner side of one end extends into the through hole, and an operating handle is arranged on the outer side 43, the other end is connected and fixed with another heating block 4. The heating block 4 adopts the same meta...

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Abstract

The invention relates to a metal pipe butt-joint circumferential seam heating device. The metal pipe butt-joint circumferential seam heating device is characterized by comprising a height-adjustable machine frame, a heating device and a control unit, wherein the heating device and the control unit are both arranged on the machine frame, and the heating device heats a butt-joint circumferential seam to be processed under the control of the control unit according to set temperate and time. The metal pipe butt-joint circumferential seam heating device has the advantage that a natural gas combustor is upgraded by introducing an international advanced combustion principle and a method. As an advanced combustor, the metal pipe butt-joint circumferential seam heating device is capable of largely improving the heating quality of a product, adopts an advanced heating method, introduces heating parameter automatic control functions such as automatic ignition and taking off of the flame, and automatic temperature control, reduces the interference from man-made factors, enables heating of a product to be even and controllable, improves the quality of the product and utilization rate of energy, and improves the operation environment of a production workshop.

Description

technical field [0001] The invention relates to a heating device for butt ring seams of metal pipes. Background technique [0002] During the preheating / post-welding hydrogen removal operation of the boiler header girth seam, the manufacturing workshop currently uses the traditional cannon barrel (flame tube) to preheat the header girth seam / hydrogen elimination operation. This method has the following disadvantages: first, the heated metal pipe wall is not evenly heated, which can easily lead to weld quality defects; A large number of natural gas resources. Third, the heating effect depends on manual operation and control, lacking temperature measurement and monitoring. Contents of the invention [0003] The technical problem to be solved by the present invention is to improve the preheating before welding of the header girth seam / hydrogen elimination heating quality after welding, improve the effective utilization rate of natural gas, reduce the loss of gas, and increa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K37/00C21D9/50
Inventor 辛炜陈力任艳明陈超刘国平
Owner SHANGHAI BOILER WORKS
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