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Automatic temperature control system for heat treatment and using method thereof

A technology of temperature control system and monitoring system, applied in heat treatment process control, control/regulation system, humidity control and other directions, can solve the problems of long heating time, difficult temperature measurement, unintuitiveness, etc. Simple to use effects

Inactive Publication Date: 2012-09-19
YUNNAN CONSTR & INSTALLATION JOINT STOCK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the oil will burn when the oil temperature exceeds a certain temperature. It is not easy to heat the large coupling to the assembly temperature. It needs more oil and a large heating vessel, and the heating temperature is not easy to control, and the temperature measurement is difficult and not intuitive. Observing the entire heating process, it is difficult to measure the expansion size of the coupling, and the heating time is long

Method used

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  • Automatic temperature control system for heat treatment and using method thereof
  • Automatic temperature control system for heat treatment and using method thereof
  • Automatic temperature control system for heat treatment and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] 3# vaporizer in a chemical plant

[0047] The first step, the equipment arrives at the site. First, according to the thickness of the weld seam: 50mm; the length of the single-sided weld seam: 3×3.14=9.42m, heat treatment on both sides of the weld seam, determine the capacity of the working power supply required for heat treatment, and connect the power supply to Heat treatment equipment; K graduation number thermocouple 12 and K graduated thermocouples 13 is fixed on both sides of the weld, and the load 14 is a crawler-type ceramic electric heater. Fix the load 14 on the specific part that needs to be heated, and connect the lead wires of the crawler-type ceramic electric heater. The power of the crawler-type ceramic electric heater is reasonable. Distribute the load of each phase and try to balance the load of each phase;

[0048] The second step is to start the heat treatment operation program. According to the required heat treatment workpiece and the requiremen...

Embodiment 2

[0053] The body of a 120,000-ton sulfuric acid waste heat boiler in a chemical plant

[0054] The first step, the equipment arrives at the site, first according to the thickness of the weld seam: 30mm, heat treatment on one side of the weld seam, determine the capacity of the working power supply required for heat treatment, and connect the power supply to the heat treatment equipment; K graduation number thermocouple 12 and K graduated thermocouples 13 is fixed on the edge of the weld seam, the load 14 is a rope-shaped ceramic electric heater, the load 14 is fixed on the weld seam, the lead wire of the load 14 is connected, and the load of each phase is reasonably distributed according to the power of the load 14, so that each phase load balance;

[0055] The second step is to start the heat treatment operation program, and set the process parameters according to the requirements through the self-defined program. The temperature rise slope requirement: 400°C or more is not...

Embodiment 3

[0060] The main steam pipeline of CDQ power station in a coking plant

[0061] The first step, the equipment arrives at the site, first according to the material of the required heat treatment test piece: 15CrMo; specifications: seamless steel pipe ф273×11, seamless steel pipe ф219×9, elbow D250, elbow 200, size head 273×219, Determine the capacity of the working power supply required for heat treatment, and connect the power supply to the heat treatment equipment; K graduation number thermocouple 12 and K graduated thermocouples 13 is fixed next to the heating workpiece, the load 14 is fixed on the specific part that needs to be heated, the lead wire of the load 14 is connected, the load of each phase is reasonably distributed according to the power of the load 14, and the load of each phase is balanced as much as possible;

[0062] The second step is to start the heat treatment operation program, and set the parameters according to the required heat treatment workpiece an...

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Abstract

The invention relates to an automatic temperature control system for heat treatment and a using method thereof, and belongs to the technical field of automation control. A K graduation thermocouple I and a K graduation thermocouple II of the automatic temperature control system are fixed on a heating surface of a to-be-heated workpiece; the K graduation thermocouple I is connected with a temperature display instrument; the K graduation thermocouple II is connected with an artificial intelligent temperature regulating instrument; an upper monitoring system is in bidirectional communication connection with the artificial intelligent temperature regulating instrument; the artificial intelligent temperature regulating instrument is connected with an AIJK series three-phase phase-shift trigger through a control device; the AIJK series three-phase phase-shift trigger is connected with a high-power MCC series alternating current silicon controller rectifier (SCR) pressure regulating module through a pulse distribution device; the high-power MCC series alternating current SCR pressure regulating module is connected with a load; and the load is fixed at a position required to be heated. According to the system, heat treatment equipment has high capacity, heater types are multiple, and residual stress generated in the welding process is convenient to eliminate; meanwhile, a heat treatment software system can record the whole treatment process; and in addition, the system overcomes defects of the traditional stress relieving equipment.

Description

technical field [0001] The invention relates to an automatic temperature control system for heat treatment and an application method thereof, belonging to the technical field of automatic control. Background technique [0002] The traditional heating device only displays temperature and time parameters, the control accuracy is not high, there is no record of the heat treatment process curve, and there are few fixed control procedures for the treatment. It cannot effectively record the entire treatment process and meet the heat treatment control, and it is not convenient to change the heat treatment program at any time. Sometimes due to the limitation of heating equipment conditions, the overall heat treatment cannot be carried out. [0003] However, the existing vibration aging instrument essentially applies a dynamic stress to the workpiece in the form of vibration. When the dynamic stress is superimposed on the residual stress of the workpiece itself and reaches or exceeds...

Claims

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Application Information

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IPC IPC(8): C21D11/00G05D22/02
Inventor 不公告发明人
Owner YUNNAN CONSTR & INSTALLATION JOINT STOCK
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