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Method of diagnosing valve, diagnosis module, and valve

An electric actuator, changing curve technology, applied in the direction of valve operation/release device, valve detail, diaphragm valve, etc., can solve problems such as inability to determine the stroke and the inability of the sensor to detect reliably

Pending Publication Date: 2022-02-01
BURKERT WERKE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, the sensors known from the prior art cannot be used for stroke determination in valves with electric actuators, since the electric actuators have a relatively small stroke, which by means of the sensors known from the prior art cannot reliably detect

Method used

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  • Method of diagnosing valve, diagnosis module, and valve
  • Method of diagnosing valve, diagnosis module, and valve
  • Method of diagnosing valve, diagnosis module, and valve

Examples

Experimental program
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Embodiment Construction

[0054] figure 1 A valve 10 is shown in FIG. 2 , which has a housing 12 which, for example, consists of a plurality of housing parts 14 , 16 , 18 .

[0055] Two fluid connections 20 , 22 are formed on the housing 12 , in particular the first housing part 14 , via which fluid can flow through the valve 10 and which fluid is processed accordingly by the valve 10 .

[0056] An electric actuator 24 is provided for controlling the fluid to be treated, which comprises a coil 26 designed as an air-core coil and an adjustment element 28 coupled to the coil 26 . Furthermore, the electric actuator 24 has a magnet arrangement 30 which is figure 1 are shown schematically only.

[0057] The magnet arrangement 30 generates a magnetic field in which the coil 26 is movably arranged such that the coil 26 moves within the magnetic field generated by the magnet arrangement 30 as soon as the coil 26 is energized, ie is charged with a current. The movement of the coil 26 is transmitted to the mo...

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PUM

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Abstract

A method of diagnosing a valve (10) is described, which has an electrodynamic actuator (24), which includes a magnet arrangement (30) for generating a magnetic field and a control element (28) which is movable relative to the magnet arrangement (30) and is coupled to a movably arranged coil (26). At least one electrical variable of the electrodynamic actuator is measured over a measurement period to detect a time course of the electrical variable. The time course of the electrical variable is evaluated over an evaluation period to determine at least one induction-dependent valve variable which is assigned to the motion profile of the electrodynamic actuator. A diagnosis module (40) and a valve (10) are furthermore described.

Description

technical field [0001] The invention relates to a method for diagnosing a valve with an electric actuator. The invention also relates to a diagnostic module for a valve with an electric actuator and to a valve. Background technique [0002] In fluid technology typically valves are used which have electric actuators. In known electromagnetic actuators, an armature made of magnetic material is moved by means of a magnetic field generated by a coil, thereby changing the position of the valve. In particular, when miniaturizing the valve, the possibilities for a space-saving design on the one hand and to providing a sufficient magnetic force on the other hand are limited. This is due to the fact that, with small coils, the achievable magnetic field strength is considerably reduced, or the maximum possible current is accordingly limited. [0003] Unlike known electromagnetic actuators, in electric actuators the magnetic field strength is related to the volume of the permanent m...

Claims

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Application Information

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IPC IPC(8): F16K37/00F16K7/16F16K27/02F16K31/06
CPCF16K37/0041F16K37/0083F16K7/16F16K27/0236F16K27/029F16K31/0655F16K31/0675H01F7/1844F16K31/0672F16K7/12G06N20/00F16K99/0046F16K99/0015
Inventor 克里斯蒂安·哈特曼
Owner BURKERT WERKE
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