Hydraulic Diaphragm Valve Control for Filter Installations
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Solution Overview
Problem
Existing diaphragm valves in fluid routing systems for filter systems are complex in design and maintenance, particularly when controlling multiple lines, due to the use of mechanical actuators and multifunctional blocks.
Innovation Solution
A flow control device utilizing a diaphragm valve combined with a hydraulic device, which is actuated by a pressure-regulating actuator, allowing for precise control and easy maintenance, and includes a pressure transmission device to manage high pressures without mechanical stress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mechanical actuators are used to control diaphragm valves in multifunctional blocks, then the valves can be actuated reliably, but the structure becomes complex and maintenance becomes difficult
Solution Approach 1:
The patent extracts the mechanical actuator components from the multifunctional block structure. Each diaphragm valve is actuated independently through its own hydraulic line connected to a central hydraulic device, eliminating the need for integrated mechanical actuators within the block. This separation simplifies the block structure while maintaining reliable valve actuation through the hydraulic system.
Solution Approach 2:
The patent implements a universal hydraulic device that serves multiple diaphragm valves simultaneously. A single hydraulic device with multiple hydraulic lines can actuate several valves, replacing the need for individual mechanical actuators for each valve. This multi-functional approach reduces overall system complexity while maintaining actuation reliability across all valves.
2Ease of operation
If mechanical actuators are used in filter systems, then precise control is achieved, but maintenance complexity increases
Solution Approach 1:
The patent introduces hydraulic fluid as an intermediary between the control system and the diaphragm valves. The hydraulic device transmits control signals through hydraulic lines to actuate the valves, providing precise control without requiring complex mechanical actuators. This intermediary system simplifies maintenance as hydraulic components are easier to service than integrated mechanical actuators.
3Reliability
If high pressure is applied to actuate diaphragm valves, then reliable closing is achieved, but mechanical stress and component damage increase
Solution Approach 1:
The patent uses a hydraulic device to actuate the diaphragm valves, leveraging hydraulic pressure to achieve reliable valve closing. The hydraulic system provides controlled pressure application to the diaphragm, ensuring consistent valve sealing without the excessive mechanical stress that would result from direct mechanical actuation. The hydraulic fluid transmits force evenly, reducing stress concentration on components.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides a structurally simple and reliable flow control device that enables precise regulation of fluid flow, reduces maintenance complexity, and extends the lifespan of components by minimizing mechanical stress.
Implementation Method 1
a hydraulic device (40) which regulates the pressure in a hydraulic channel (32) using hydraulic fluid, the hydraulic channel (32) being connected to the valve device (20) in such a way that the diaphragm (30) increases or decreases the flow cross-section depending on the pressure in the hydraulic channel (32)
Implementation Method 2
They are used, for example, to control the fluid supplied to the filter system and are actuated with mechanical actuators. This is mainly due to the fact that proven actuators such as a cam device or, as in DE 199 34 574 C2, a rod-shaped actuator are used for the elastic diaphragms.
Data Source
AI summary
The invention relates to a flow control device (10) for industrial filter installations, said flow control device comprising: a valve device (20) which is located in a flow line to, in or from a filter installation, the valve device (20) having a closed-loop control section (23) which is connected to the flow line and which can be controlled in a closed-loop manner via at least one deformable membrane (30); a hydraulic device (40) which controls the pressure in a hydraulic duct (32, 46) in a closed-loop manner by means of an actuator (42), the hydraulic duct (32, 46) being connected to the valve device (20) in such a way that the membrane (30) increases or reduces the flow cross-section depending on the pressure in the hydraulic duct (32, 46); a drive (60) for driving the hydraulic device; and an open-loop control unit (80) which controls the flow control device (10) in an open-loop manner.