Nonlinear correction system used for box-type heating furnace temperature field thermocouple

A non-linear correction, temperature-controlled thermocouple technology, used in lighting and heating equipment, furnaces, furnace types, etc., can solve the problems of temperature-controlled thermocouple errors, temperature field offset, etc., to ensure uniformity and improve uniformity Effect

Inactive Publication Date: 2011-09-07
SUZHOU LONGRAY THERMAL TECH
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] The purpose of the present invention is to solve the temperature field offset problem caused by the temperature control thermocouple error or other reasons, to provide a furnace temperature field uniformity to the temperature control thermocouple nonlinear (broken line) correction control system, to meet the production process Requirements for the control of temperature field uniformity for medium and medium-sized products

Method used

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  • Nonlinear correction system used for box-type heating furnace temperature field thermocouple
  • Nonlinear correction system used for box-type heating furnace temperature field thermocouple
  • Nonlinear correction system used for box-type heating furnace temperature field thermocouple

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Embodiment Construction

[0014] The heating furnace generally adopts a hot air circulation system. The heating furnace is divided into multiple temperature zones according to the requirements of the furnace load. One circulation fan corresponds to one temperature zone, such as figure 1 As shown, a plurality of thermocouples 2 are arranged within the effective distribution range of the temperature zone 1 to form a plurality of detection points 3, and the thermocouples 2 are temperature-controlling thermocouples.

[0015] In order to ensure the performance of the material, it has uniformity within the corresponding required range in each temperature zone. A temperature control thermocouple is installed in each temperature zone, and the feedback signal of the thermocouple and the heating control installed on the furnace are used. The system forms a closed-loop control to ensure the accuracy of temperature control. Although the temperature control thermocouple meets the requirements of the design level, t...

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Abstract

The invention provides a nonlinear correction system used for a box-type heating furnace temperature field thermocouple. The heating furnace is divided into a plurality of temperature zones, wherein one circulating fan corresponds to one temperature zone, and multiple thermocouples are arranged in the effective distribution range of each temperature zone. By carrying out nonlinear correction on the thermocouples for temperature controlling, the requirement of temperature field uniformity for products in a production technology can be satisfied. The uniformity of the furnace temperature zones can be greatly improved after correction, which can meet the requirements of multiple alloy products to the temperature zones. As for the furnace with the plurality of temperature zones, the uniformity between the temperature zones can be ensured.

Description

technical field [0001] The invention relates to a thermocouple nonlinear correction system for the temperature field of a box-type heating furnace. Background technique [0002] Different products have different temperature difference (uniformity) requirements for the furnace temperature field. Some products may only meet the requirements in a temperature field range within the positive and negative temperature difference range, but some alloy products require both heating and soaking. This requires two or more temperature fields to reach the required range of uniformity. Temperature field measurement generally arranges a certain number of thermocouples within the effective cloth range (the thermocouples have been verified by the measurement unit and have correction data in different temperature ranges, which can be regarded as standard thermocouples), generally a few to dozens Then start to heat up to the required temperature field. After holding the heat for a period of t...

Claims

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Application Information

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IPC IPC(8): F27B17/00F27D19/00
Inventor 赵卫东石云卿辛宏刘和平
Owner SUZHOU LONGRAY THERMAL TECH
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