Vapor cooling system for use in offline heat treatment of thin medium and thick plates

A cooling system and thin-gauge technology, applied in heat treatment equipment, quenching devices, manufacturing tools, etc., can solve problems such as uneven cooling, achieve stable gas supply, solve uneven surface temperature distribution and plate shape problems, and improve automatic control level Effect

Active Publication Date: 2012-04-25
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a steam-mist cooling system for off-line heat treatment of thin and medium-thick plates, which has good atomization effect, good cooling uniformity, wide adjustment range of cooling intensity, precise control of c

Method used

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  • Vapor cooling system for use in offline heat treatment of thin medium and thick plates
  • Vapor cooling system for use in offline heat treatment of thin medium and thick plates
  • Vapor cooling system for use in offline heat treatment of thin medium and thick plates

Examples

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Example Embodiment

[0028] Example 1

[0029] This embodiment provides a technical solution for the operation of the vapor mist cooling device configured with the vapor mist cooling system of the present invention, such as Figure 1~3 Shown. When the vapor and mist cooling system starts to implement the cooling regulations, the water supply system, air supply system, and lifting transmission system work according to the following technical scheme: the water supply system opens the water supply pipeline opening and closing valve 2 of the working cooling section according to the cooling regulations, and at this time, the cooling water is supplied by The diversion collection pipe 1 enters the vapor nozzle water storage chamber 24 through the opening and closing valve 2, the flow meter 3, the regulating valve 4, and the water inlet 15 in turn. According to the actual water pressure measured by the pressure sensor 16 on the diversion collection pipe 1, the pressure relief is automatically adjusted. The ...

Example Embodiment

[0030] Example 2

[0031] This embodiment provides an operation scheme for the vapor mist cooling device to execute the vapor mist cooling control system, such as Figure 4 Shown. When the steel plate is ready to be released, the heat treatment furnace sends a ready-to-bake signal to the vapor cooling system. At the same time, the plate number of the steel plate to be released is transmitted. The vapor cooling system reads the plate number to be released to the plant-level MES or planning management system to be released. Steel plate plan information, which includes steel grade, steel plate specification, opening cooling temperature, final cooling temperature and cooling speed. The experience management system uses the acquired plan information to formulate cooling strategies, invokes experience management procedures and sends them to the PLC for execution. The PLC system monitors the implementation of the regulations in real time, and controls the regulating valves and on-off va...

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PUM

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Abstract

The invention discloses a vapor cooling system for use in offline heat treatment of thin medium and thick plates, which comprises a water supply system, an air supply system, vapor spray nozzles and a control system, and is characterized in that: the vapor spray nozzles are symmetrically arranged above and below a rollway gap along the conveying rollway, the upper spray nozzle and an upper rollway are fixed on a movable upper frame, and the lower spray nozzle is fixed on a fixed frame; the water and air supply systems are led into the vapor spray nozzles by a shunt water collecting header anda shunt air collecting header respectively; a water supply pipe is provided with a valve, a flow meter and a regulating valve and is used for providing stable and reliable cooling water into an innerwater storage cavity in the spray nozzle from the side of the spray nozzle; and the control system consists of an experience management system and a PLC system, the experience management system makesa vapor cooling policy and cooling procedure and sends the cooling procedure to the PLC system to execute the cooling procedure, and the PLC system realizes the regulation of the intensity of coolingof the spray nozzle and the regulation of the state of water spraying. The vapor cooling system can solve the nonuniform cooling problem aroused by the high-pressure water jet cooling in the conventional thin medium and thick plate offline quenching.

Description

technical field [0001] The invention belongs to the technical field of heat treatment equipment and technology, and relates to a steam-mist cooling system for off-line heat treatment of thin-sized medium-thick plates. Background technique [0002] At present, the off-line quenching (solid solution) of thin and medium-thick plates (4mm~8mm) mainly adopts water quenching, and high-pressure water jets are used to impact the surface of the steel plate to produce enhanced heat transfer effects. This cooling method has great instantaneous cooling intensity for thin-gauge steel plates, which is prone to uneven cooling and plate shape problems, which reduces the qualified rate of finished products and increases the difficulty of production process control. At the same time, vapor-mist cooling has been widely used in various fields of the metallurgical industry. Mist cooling is mostly used in the cooling of the secondary cooling section of the slab continuous casting machine and the...

Claims

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Application Information

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IPC IPC(8): C21D1/667
Inventor 王昭东袁国付天亮王黎筠王国栋韩毅李勇
Owner NORTHEASTERN UNIV
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