Sleeve dismounting device and method based on asynchronous multi-frequency induction heating

An induction heating device and induction heating technology, applied in the field of heat treatment, can solve the problems of material waste, inability to guarantee the penetration depth of the heating area, and inconvenient removal of the casing, so as to reduce costs, ensure rapidity and uniformity, and reduce waste Effect

Active Publication Date: 2021-05-28
东北大学秦皇岛分校
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  • Description
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Problems solved by technology

[0003] In actual industrial production activities, due to the damage of the inner and outer tubes, the inner and outer tubes of the casing need to be replaced frequently. At present, the method used for the removal of the casing is the fire-spraying method, and the fire-spraying method cannot Guaranteed the penetration depth of the heating area, which brings serious inconvenience to the removal of the casing, resulting in a great waste of materials

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  • Sleeve dismounting device and method based on asynchronous multi-frequency induction heating
  • Sleeve dismounting device and method based on asynchronous multi-frequency induction heating
  • Sleeve dismounting device and method based on asynchronous multi-frequency induction heating

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Embodiment Construction

[0029] In order to better explain the present invention and facilitate understanding, the technical solutions and effects of the present invention will be described in detail below through specific implementation manners in conjunction with the accompanying drawings.

[0030] Such as figure 1As shown, a sleeve pipe removal device based on asynchronous multi-frequency induction heating includes a computer 20, a platform 5, a cooling device arranged on the platform 5, and is fixed on the platform 5 for catching the ejection from the cooling device. The cooling water tank 4, the frame 7 fixed on the platform 5, the support roller 6 arranged on the frame 7, the vertical power supply platform 14 fixed on the side of the platform 5, the multi-frequency induction heating device, Rotating chuck device, horizontal moving device, semicircular baffle plate 16 and temperature measuring device, vertical power supply platform 14 is electrically connected with computer 20; Described multi-fr...

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Abstract

The invention relates to a sleeve dismounting device and method based on asynchronous multi-frequency induction heating, and belongs to the technical field of heat treatment. The device comprises a computer, a platform, a cooling device arranged on the platform, a water tank, a rack fixed to the platform, a supporting roller arranged on the rack, a vertical power table fixed to the side face of the platform, a multi-frequency induction heating device, a rotary chuck device, a horizontal moving device, a semicircular baffle and a temperature measuring device. According to the principle that the penetration depths of currents at different frequencies are different, an inner pipe and an outer pipe of a sleeve are made to have a large temperature difference, so that the inner pipe and the outer pipe deform to different degrees after being heated, the original interference fit between the inner pipe and the outer pipe is changed into clearance fit, and finally the inner pipe and the outer pipe are separated through pushing force provided by an inner jaw chuck and the semicircular baffle. Therefore, the waste of materials is reduced.

Description

technical field [0001] The invention belongs to the technical field of heat treatment, and in particular relates to a casing removal device and method based on asynchronous multi-frequency induction heating. Background technique [0002] In the industrial field, the casing is mainly used in oil and gas gathering and transportation pipelines, oil and gas well casings, sewage reinjection pipelines; chemical heat exchanger tube bundles; metallurgy, seawater desalination, pharmaceutical chemicals, sewage treatment, new energy, food processing and other industries. The casing is composed of an outer tube and an inner tube closely matched with its inner wall surface. The main material of the outer tube is carbon steel, which is responsible for pressure bearing and rigid support of the pipeline. The main material of the inner tube is alloy, which is responsible for corrosion resistance and wear resistance. damage etc. The installation of the casing is to use the principle of therm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B27/00
CPCB25B27/00
Inventor 赵玉倩马振鹤杨乐
Owner 东北大学秦皇岛分校
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