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Valve controls and process valves

A technology for controlling electronic devices and valve control, applied to valve devices, using electric/magnetic devices to transmit sensing components, lifting valves, etc., can solve problems such as complex structures and high cost of valve control devices, and achieve low circuit costs and improved Reliability, Effects of Improved Reliability and Cost Advantage

Active Publication Date: 2018-09-04
GEA TUCHENHAGEN GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The very high reliability that must be required for this results in a complex design and thus high costs for the valve control

Method used

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  • Valve controls and process valves
  • Valve controls and process valves
  • Valve controls and process valves

Examples

Experimental program
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Effect test

Embodiment Construction

[0041] figure 1A process valve 1 is shown in a schematic partial section, which is suitable for use in the food industry, the beverage industry, the fine chemical industry and the pharmaceutical industry as well as in bioengineering. The process valve 1 has a valve housing 2 which, for example, includes first, second, third and fourth connections 3 , 4 , 5 and 6 . The first and second ports 3 and 4 provide a fluid connection to the first chamber 7 of the process valve 1 , the third and fourth ports 5 and 6 respectively provide a fluid connection to the second chamber 8 . Each of these interfaces can be connected to the pipeline of the process equipment. A passage opening 9 is provided inside the valve housing 2 between the first and second chambers 7 and 8 , which is surrounded by a valve seat 10 . The locking mechanism 11 is arranged in such a way that it can come into sealing contact with the valve seat 10 in order to interrupt the connection formed by the passage opening ...

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Abstract

The invention relates to a valve control device (22) for a process valve (1), comprising control electronics (33) for controlling a drive (15) and a device for determining the position of a movable element (32) A measuring system (34), the movable element is located inside the valve control device (22) and is movable therein in the direction of linear motion (B). In order to provide a high-reliability valve control device (22) with a low-cost structure, according to the proposal of the present invention, the measurement system (34) includes a transmitting device (35) for emitting electromagnetic excitation waves, fixed on a movable The resonator (36) on the element, the receiving device (37) and the measuring electronics (38) connected to the transmitting device (35) and the receiving device (37), in which the electrical resonance is caused by the excitation wave, in the Electromagnetic resonance waves (R) caused by electrical resonance in the receiving device generate a signal, and the measuring electronics are configured to generate excitation waves in the transmitting device (35) and are configured for the signal generated by the receiving device (37) The position of the movable element (32) relative to the receiving device (37) is determined. The invention also relates to a process valve (1) which is retrofitted with a valve control device (22) according to the invention.

Description

technical field [0001] The invention relates to a valve control device for a process valve and to a process valve. Background technique [0002] Process valves are integrated in complex plant controls in process plants of the food industry, the beverage industry, the pharmaceutical industry as well as fine chemicals and bioengineering. For this purpose, a valve control is provided on the process valve, which is connected to the system control. The valve control reports the position of the process valve to the plant control and changes the valve position based on the signal as required by the process. [0003] In earlier solutions, the position of the process valve was determined by means of mechanical contacts. The microswitch is in contact with a valve member connected to the closing element. The component is designed in such a way that the switching position of the microswitch is changed by movement of the component. The position of the closing element can thus be dete...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K37/00G01D5/20
CPCY10T137/8242F16K37/0025F16K37/0041F16K1/12
Inventor B·波拉特M·格斯基维茨H·斯坦德
Owner GEA TUCHENHAGEN GMBH
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