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High frequency induction heated temperature measuring equipment and its temperature measuring method thereof

A technology of high-frequency induction heating and high-frequency induction, which is applied in the direction of electric radiation detectors, etc., can solve problems such as uneven heating, and achieve the effects of easy operation, real-time and accurate temperature measurement, and simple structure

Inactive Publication Date: 2008-12-10
SHANGHAI SHIPBUILDING TECH RES INST
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AI Technical Summary

Problems solved by technology

In the application of high-frequency induction power supply to heat the flat steel plate with a ring coil, the temperature measurement is usually not carried out in the prior art, and there is a disadvantage of uneven heating

Method used

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  • High frequency induction heated temperature measuring equipment and its temperature measuring method thereof
  • High frequency induction heated temperature measuring equipment and its temperature measuring method thereof
  • High frequency induction heated temperature measuring equipment and its temperature measuring method thereof

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0015] Under the effect of high-frequency induction heating of the ring coil, the flat steel plate gradually deforms due to thermal stress, and the distance between the bottom plane of the heating ring coil 7 and the steel plate 9 will change, see figure 1 . Different measuring points are selected, and the measured temperature is also different. When running on different curved surfaces, the temperature at the center of the toroidal coil 7 changes little, so the center of the heating toroidal coil 7 is selected as the measuring point of the temperature, and the measurement area is guaranteed to be within the range of the coil. Ring interior.

[0016] In this measurement method, the infrared temperature sensor 6 is used as a temperature detection tool, and the measurement process is as follows: figure 2 shown.

[0017] A. Determine the center positio...

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Abstract

The invention discloses a temperature measuring method for high frequency induction heating which is characterized by including the following steps of: A, confirming the central position of a measuring area according to the position of an annular loop; B, fixing an infrared temperature measuring sensor just above the central position of the measuring area and a measuring head is over against the central position; C, adjusting the infrared temperature measuring sensor into a working state; D, electrifying the sensor and reading an electric signal outputted by the sensor when heating; E, converting the electric signal into a temperature signal. The temperature measuring device and the temperature measuring method of the invention are adopted to carry out instant temperature measuring on high frequency induction heating, convert the obtained electric signal into the temperature signal by the calculation and processing of a computer, display the temperature signal and form a feedback control on the output power of the high frequency induction, thus being beneficial for the high frequency induction heating to be carried out uniformly and stably. The temperature measuring method has a simple structure, is conveniently operated and can accurately measure the temperature in real time.

Description

Technical field: [0001] The invention relates to the field of high-frequency induction heating, in particular to a temperature measuring device for high-frequency induction heating and a temperature measuring method thereof, which are used for temperature measurement of high-frequency induction heating of a flat steel plate with a ring coil. Background technique: [0002] In the steel structure manufacturing industry, the problem of forming the curved surface of the steel plate is often involved. For example, in the shipbuilding industry, it is necessary to perform surface forming on the outer plate of the hull. Now the commonly used process method is to use the flame to locally heat the surface of the steel plate and follow the water cooling, so that the steel plate will expand with heat and contract with cold under the constraint conditions to produce deformation, commonly known as water and fire bending. This kind of process method has low production efficiency, long pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J5/10
Inventor 吴春平汪远方方立国姚建春
Owner SHANGHAI SHIPBUILDING TECH RES INST
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