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Control valve, in particularl for use in cooling paths

A technology of regulating valve and cooling zone, applied in the field of regulating valve, can solve the problem of unable to reach the regulating speed and so on

Active Publication Date: 2018-09-28
GEVA AUTOMATION GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The fastest valve drive on the market with a maximum adjustment speed of 10mm / s achieves the required response time, but cannot achieve the required adjustment speed (50mm / s)
[0011] Therefore, accurate temperature application with minimum deviation of the temperature after the cooling zone from the target temperature is not currently possible

Method used

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  • Control valve, in particularl for use in cooling paths
  • Control valve, in particularl for use in cooling paths
  • Control valve, in particularl for use in cooling paths

Examples

Experimental program
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Embodiment Construction

[0048] A regulating valve (1) comprises a valve housing (2) with an inlet and an outlet (2a, 2b), a throttle body (3) and a valve seat (4). A valve rod (4a) connected to the throttle body (3) is coupled to a rod-shaped operating element (5) outside the valve housing (2). The operating device (5) is guided in a translational manner in the drive housing (6) to be movable back and forth in the vertical direction, so that the throttle valve body (3) coupled to the operating device (5) figure 1 back and forth between the closed and open positions shown in .

[0049] The downwardly tapering throttle body ( 3 ) is designed in such a way that in the closed position it prevents a passage between the throttle body ( 3 ) and the valve seat ( 4 ). By lifting the throttle body (3), which tapers downwards, an annular passage cross-section is obtained between the valve seat (4) and the throttle body (3), which is based on the throttle body The cross-sectional shape becomes larger during mo...

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PUM

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Abstract

The invention relates to a control valve for adjusting the flow area in at least one pipe, in particular for the highly dynamic controlling of the amount of cooling medium flowing through cooling paths in rolling mills, comprising at least one throttle body, at least one valve seat, and an actuator designed to modify the position of each throttle body. In order to obtain a reproducible response behavior, short reaction times and high accuracy of the control valve, according to the invention, the actuator is provided with an electric linear motor.

Description

technical field [0001] The invention relates to a regulating valve for regulating a passage cross section in a pipeline, in particular a regulating valve for highly dynamically regulating the cooling water quantity of a cooling zone in a rolling mill. Background technique [0002] A regulating valve is a device that operates with auxiliary energy and regulates the throughput in a process system. [0003] Water cooling zones are used in rolling mills for steel wire and bars in order to influence the mechanical properties of the material. Use a different approach here: [0004] The self-tempering heat treatment method is basically used in the manufacture of structural steel. Here, the finished rolled product is heat-treated by rolling heat before reaching a cooling bed (bar) or a winding machine (wire). The rolled piece leaves the previous rolling stand at a temperature of 950-1050°C. In the cooling zone, the outer layer is cooled by water at high pressure (5-16 bar) to a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K31/126B21B1/00F16K31/04
CPCF16K31/1262F16K31/046F16K31/0658F16K31/04F16K31/126F16K31/082H01F7/1615B21B45/0203
Inventor 布克哈特·卡斯
Owner GEVA AUTOMATION GMBH