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A maintenance method for cooling control flow regulating valve after rolling

A technology of flow regulating valve and adjustment method, which is applied in the direction of valve details, valve device, temperature control, etc., and can solve the problems such as deviation of flow regulating valve adjustment accuracy

Active Publication Date: 2021-09-14
HANDAN IRON & STEEL GROUP +1
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Problems solved by technology

[0006] The technical problem to be solved in the present invention is the problem of the reflection speed of the cooling control flow regulating valve matching system after rolling and the stability of the valve flow adjustment. A maintenance method for the cooling control flow regulating valve after rolling is designed to solve the problem of the reflection speed and flow rate of the flow regulating valve. The problem of large deviation in the adjustment accuracy of the control valve

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  • A maintenance method for cooling control flow regulating valve after rolling
  • A maintenance method for cooling control flow regulating valve after rolling
  • A maintenance method for cooling control flow regulating valve after rolling

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Embodiment Construction

[0033] The present invention will be described in further detail below in conjunction with the examples.

[0034] The invention discloses a method for maintaining a cooling control flow regulating valve after rolling, which includes the following steps:

[0035] S1. Formulate the adjustment method of the valve cylinder actuator of the flow control valve, so as to meet the stroke requirements of the valve during the adjustment action process;

[0036] S2. Set the corresponding speed adjustment method of the valve to meet the efficiency of the valve in the adjustment process, and avoid the phenomenon that the flow has not been adjusted and stabilized when the steel plate reaches the cooling control system due to the slow or long time of valve adjustment;

[0037] S3. Formulate a flexible test method for valves, so as to determine the specific faults of the valve;

[0038] S4. Formulate valve fault maintenance methods, master the composition and structure of valve parts, and use...

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Abstract

The invention relates to a maintenance method for a post-rolling cooling control flow regulating valve. Through two program settings and three flexible test methods for the valve, it is determined that the valve has the problem of unstable regulation flow, and a fault maintenance method completely solves the problem of flow regulation. The valve controls flow fluctuation problems. Through the application of this method, the problem of uneven cooling of the steel plate caused by large fluctuations in the accuracy of water adjustment when the steel plate passes through the cooling control area is completely solved, ensuring the stable operation of the cooling control system after rolling, and improving the operation reliability of the flow control valve; the method is convenient Effective, within a relatively low cost, the high-precision use of the flow regulating valve can be restored in a short period of time, and the ability to control the plate shape of the produced steel plate is improved, and the practicability is strong.

Description

technical field [0001] This patent application belongs to the design technical field of the cooling system of a plate and strip mill, and more specifically relates to the design and application of a method for maintaining a cooling control flow regulating valve after rolling in a medium and thick plate mill. Background technique [0002] The wide and thick plate production line of Handan Steel Medium Plate Plant began to upgrade its equipment and optimize its functions in April 2014. With the upgrading of mechanical equipment, the equipment of the cooling control system has also been improved and its functions optimized. The functional accuracy has been greatly improved, ensuring that the cooling equipment can give full play to its functional advantages, produce better products, and upgrade the product structure of the medium plate factory. [0003] The controlled cooling equipment after rolling is divided into two systems: 1. DQ cooling system; 2. ACC cooling system. The w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K37/00F16K31/12G01M13/003B21B37/74
CPCB21B37/74F16K31/12F16K37/0083G01M13/003
Inventor 张振涛万蕾许敏郑首忠韩飞王欢程晓丽
Owner HANDAN IRON & STEEL GROUP
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