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Device for measuring temperature of hot-rolled strip steel

A technology of temperature measurement and hot-rolled strip steel, which is applied in the direction of length measuring device, temperature measurement of moving solids, metal rolling, etc., can solve the problems of poor gas drainage capacity and easy interference of lower air flow, so as to avoid collision, structure Simple, good workmanship

Inactive Publication Date: 2009-10-21
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the gas is ejected vertically from the bottom of the nozzle, the lower air flow is easily disturbed, and the drainage capacity of the gas is poor

Method used

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  • Device for measuring temperature of hot-rolled strip steel
  • Device for measuring temperature of hot-rolled strip steel
  • Device for measuring temperature of hot-rolled strip steel

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Embodiment Construction

[0019] Such as figure 1 , figure 2 ,, image 3 , Figure 5 As shown, the present invention includes a measurement chamber 8, a nozzle 1 and a non-contact temperature sensing element 6; a nozzle boss 3 is arranged on the outer cylindrical surface of the nozzle 1, and a nozzle top partition 4 is installed on the top surface of the nozzle 1, and the nozzle air intake The port 2 is arranged tangentially along the circumference, and the measuring chamber air inlet 7 is opened on the lower cylindrical surface of the measuring chamber 8. The nozzle 1 is installed in the lower part of the measuring chamber 8, and the nozzle boss 3 and the nozzle top partition 4 form a sliding movement with the measuring chamber 8. Cooperate, the air inlet 7 of the measurement chamber is located between the nozzle boss 3 and the nozzle top partition 4, the measurement chamber 8 above the nozzle top partition 4 is equipped with a non-contact temperature measurement sensing element 6, the air inlet of...

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Abstract

The invention discloses a temperature measuring device for hot-rolled strip steel. Including measuring chamber, nozzle and non-contact temperature sensing element. The nozzle air inlet is arranged tangentially along the circumference, the nozzle is installed in the lower part of the measurement chamber, the nozzle boss and the nozzle top partition form a sliding fit with the measurement chamber, the measurement chamber air inlet is located between the nozzle boss and the nozzle top partition, The measuring chamber above the partition on the top of the nozzle is equipped with a non-contact temperature-measuring sensing element. The airflow at the air inlet of the measuring chamber is sprayed from the bottom of the nozzle to the hot-rolled strip through the tangentially arranged nozzle air inlet. The cooling water and mist covered on the surface of the hot-rolled strip are blown away from the surface, and the nozzle is suspended on the surface of the hot-rolled strip under the action of self-stabilizing fluid force and gravity. The surface temperature of the hot-rolled strip beneath the plate is measured. The invention has the advantages of simple structure, good manufacturability, simple operation, etc., and eliminates the interference of cooling water and mist on non-contact temperature measurement.

Description

technical field [0001] The invention relates to a temperature measuring device, in particular to a temperature measuring device for hot-rolled strip steel. Background technique [0002] Accurate measurement of the surface temperature of the hot-rolled strip is the prerequisite for precise control of the temperature of the hot-rolled strip. At present, infrared pyrometers are mainly used for non-contact measurement of the surface temperature of the strip. When the surface of the strip is disturbed by cooling water, fog, etc. , its measurement accuracy is difficult to guarantee. [0003] To eliminate the influence of cooling water and mist at the temperature measurement point, high-speed jet gas can be used to blow away the cooling water and mist covering the surface of the strip. Since the kinetic energy of the injected gas attenuates sharply with the injection distance, the distance between the gas nozzle and the strip cannot be too large, but the shape fluctuation and vibr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B38/00G01K13/04
Inventor 邹俊傅新
Owner ZHEJIANG UNIV
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