Baffle Plate Control Device for Filter Gas Filtration
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Solution Overview
Problem
Existing control devices for rotary nozzles in filter devices used for gas filtration suffer from manufacturing tolerances leading to misalignment, material fatigue, high wear, and increased friction, resulting in complex structures and high manufacturing costs.
Innovation Solution
A control device with a movably attached baffle plate on the control sleeve allows for compensation of positional deviations, reducing stress and wear through axial resilience and elastic support, and using brass alloys for the control sleeve and feed pipe to minimize friction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the baffle plate is rigidly connected to the control sleeve, then the structure is simple and manufacturing costs are low, but manufacturing tolerances cause misalignment, material fatigue, and high wear
Solution Approach 1:
The baffle plate is made movable relative to the control sleeve through a tilting mechanism with elastic support, allowing it to dynamically adjust its position to compensate for misalignment caused by manufacturing tolerances, rather than being rigidly fixed
Solution Approach 2:
The angle of inclination between the baffle plate and control sleeve is made variable through elastic support, enabling the baffle plate to change its spatial orientation to achieve proper alignment with the base plate despite feed pipe deviations
2Reliability
If the baffle plate is rigidly connected to the control sleeve, then manufacturing costs are low, but the structure leads to material fatigue and damage due to asymmetric contact
Solution Approach 1:
Elastic elements are introduced between the baffle plate and control sleeve to provide cushioning and shock absorption, preventing direct rigid contact that causes material fatigue and damage during operation
Solution Approach 2:
The baffle plate is made movable with tilting capability relative to the control sleeve, allowing it to adapt its position to avoid asymmetric contact and reduce stress concentrations that lead to fatigue failure
3Ease of operation
If the control sleeve and feed pipe have high friction, then the structure is simple, but functionality is impaired due to impaired axial adjustment
Solution Approach 1:
A guiding ring is introduced as an intermediary component between the control sleeve and feed pipe to facilitate smooth axial movement and reduce friction, enabling proper functionality of the axial adjustment mechanism
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 reduces material stress and wear, simplifies assembly, and lowers production costs while maintaining efficient operation and reduced friction, enhancing the longevity and functionality of the control device.
Implementation Method 1
The baffle plate (35) can be axially resiliently supported on the control sleeve (32) by means of a spring element (39)
Implementation Method 2
an elastic element (41), by means of which the baffle plate (35) is axially supported on a holding disc (42)
Implementation Method 3
the spring element (39), in particular in the open position, prevents noise development due to relative movements between the baffle plate and control sleeve
Implementation Method 4
using brass alloys for the control sleeve and feed pipe to minimize friction
Data Source
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AI summary
The present invention relates to a control device (7) of a filter device (1) with a rotary nozzle (9), comprising a base plate (6) having a passage opening (17) for filtered gas, a console (18) attached to the base plate (6) to which a feed tube (21) for supplying backwash medium to the rotary nozzle (9) is attached, a cylinder body (22) with a cylinder (23) attached to the console (18) and/or to the feed tube (21), a piston (26) axially adjustable in the cylinder body (22), a control sleeve (32) axially adjustable and guided on the outside of the feed tube (21) and connected to the piston (26), and a baffle plate (35) for controlling the passage opening (17) connected to the control sleeve (32), wherein the baffle plate (35), the control sleeve (32) and the piston (26) form a unit (36) which, depending on the pressure difference at the piston (26) between a closed position (S1),in which the baffle plate (35) closes the passage opening (17), and is adjustable to an open position (S2) in which the baffle plate (35) opens the passage opening (17). Reduced wear is achieved if the baffle plate (35) is movably held on the control sleeve (32).