Heating furnace cooling control system and control method

A technology of cooling control and heating furnace, which is applied in the field of steel rolling heating furnace, can solve the problems of threatening the safety of heating furnace operators, explosion, deformation, etc., achieve the effect of small investment, quick effect, and ensure normal cooling

Inactive Publication Date: 2014-02-19
SGIS SONGSHAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to whether the point inspection can be found in time and it takes a while to switch the valve on site, the water beam in the furnace will be deformed and cracked without cooling water for a short time, and even explode, which seriously threatens the safety of the heating furnace and the safety of operators in the area.

Method used

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  • Heating furnace cooling control system and control method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1: In the case of normal production, the heating furnace 40, 41 cooling water supply system 30 water pump is damaged, and the pressure is 1 bar, which is lower than the set value. First, the pressure transmitter 24 and the flow transmitter 25 are used for monitoring The water supply pressure, flow rate and power supply of the heating furnace 40, 41 cooling control system; the pressure transmitter 24 is used to judge whether the pressure of the cooling water main pipe supplied to the heating furnace 40, 41 is maintained within the set range, and the pressure is low due to the damage of the water pump. If the pressure is lower than the set value, so the pressure is not within the set range, then continue to monitor the heating furnace 40, 41 cooling control system water supply pressure, flow and power supply situation, and the next step can only be entered after the water pump is repaired.

Embodiment 2

[0032] Embodiment 2: In the case of normal production, the heating furnace 40, 41 is powered off, and the power supply is abnormal. First, the pressure transmitter 24 and the flow transmitter 25 are used to monitor the power supply of the heating furnace 40, 41; , 41 power outage, so do not enter the next step, continue to get back to the state of the monitoring heating furnace 40, 41 cooling control system, after the power supply is restored, the next step can be entered.

Embodiment 3

[0033] Embodiment 3: When the cooling water system of the heating furnace is abnormal and the valve cannot be opened automatically, the command to open the valve can be manually issued on the man-machine communication interface to execute the command to open the safety water valve.

[0034] The present invention has the characteristics of small investment, quick effect and convenient operation, and can not be disturbed by external conditions when the circulating cooling water system of the heating furnace cannot supply water normally due to various reasons such as power failure, damage to the water pump and leakage of the pipe network 11, etc. Ensure that the security water is put in in time, and ensure the normal cooling of the heating furnace 40, 41 to ensure the safety of the furnace. It is suitable for the cooling water system of the heating furnace in the hot rolling plate factory.

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Abstract

The invention relates to a heating furnace cooling control system, and comprises a cooling water supply system, wherein the cooling water supply system is connected to a circulating water pipe network, two branches divided by the circulating water pipe network are connected to two heating furnaces, the heating furnace is connected to a control device and a command generator capable of outputting the control command, the circulating water pipe network is connected with the pipe network through a valve, and the other end of the pipe network is connected with an emergency water supply system. The heating furnace cooling control system has the characteristics of small investment, fast effectiveness and convenient operation, under the abnormal water supply condition of power off, damage of a water pump and leakage of the pipe network, the heating furnace circulated cooling water system is not interfered by external condition, safety water can be timely input, normal cooling of the heating furnace can be ensure, safety of the furnace is ensured, and the heating furnace cooling control system is suitable for the heating furnace cooling water system in a hot rolling medium and heavy plate factory.

Description

technical field [0001] The invention belongs to the technical field of steel rolling heating furnaces, and relates to a heating furnace cooling control system and a control method thereof. Background technique [0002] At present, domestically, the heating furnaces of medium and heavy plate factories are mainly two types: walking beam heating furnace and pushing steel heating furnace. The cooling water of the heating furnace is mainly used to cool the water beam, furnace door and detection components in the furnace area. Water beams are generally made of thick-walled pipes and subjected to alternating loads at high temperatures. If the cooling is not in place, its strength will decrease rapidly, or the cooling water will turn into high-temperature steam, resulting in serious consequences such as furnace collapse and explosion. [0003] Because the normal supply of cooling water of the heating furnace is closely related to the safety of the heating furnace operation, many he...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D11/00
Inventor 姜海军丁克张艳钟秀文徐启杨林乐乐巫献华陈功彬
Owner SGIS SONGSHAN CO LTD
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