Gas Filter Coupling Device Radial Removal
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Solution Overview
Problem
Existing gas filter devices require significant installation space for assembly and disassembly due to the need to pull the filter body axially over the entire length of a lance-like tube, making it cumbersome to change worn-out filter materials.
Innovation Solution
A coupling device with a seat surface on the filter body and a coupling sleeve on the filter carrier allows for axial and radial adjustability, separating the backwash system into two assemblies, enabling the filter body to be lifted axially and removed radially, thus reducing the required installation space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the filter body is connected to the filter carrier via a long lance-like tube for backwash gas supply, then the backwash function is reliable, but the installation space required for assembly and disassembly becomes very large
Solution Approach 1:
The backwash gas supply system is segmented into two parts: a pressure connection on the filter carrier and a coupling device on the filter body. This segmentation eliminates the need for a long continuous tube, allowing the filter body to be detached and removed radially with minimal axial movement space.
Solution Approach 2:
A coupling device with coupling elements acts as an intermediary between the filter carrier and filter body. This coupling device enables gas supply through a compact interface rather than a long tube, reducing the space required for assembly and disassembly operations.
2Reliability
If the filter body is pulled axially over the entire length of the tube for replacement, then the connection is secure, but the ease of operation for filter body replacement deteriorates
Solution Approach 1:
The connection system is segmented into a fixed pressure connection on the carrier and a detachable coupling device on the filter body. This allows the filter body to be replaced by simple axial lifting and radial removal rather than pulling over a long tube, significantly improving ease of operation.
Solution Approach 2:
The coupling device incorporates movable coupling elements that can engage and disengage dynamically. This dynamic connection mechanism maintains secure attachment during operation but enables quick release during maintenance, balancing connection security with ease of replacement.
3Ease of operation
If a coupling device with axial and radial adjustability is introduced, then the ease of operation improves, but the device complexity increases
Solution Approach 1:
The coupling device is segmented into discrete coupling elements with specific adjustment functions. This modular segmentation makes the complexity manageable and allows each element to be optimized independently for its specific adjustment function.
Solution Approach 2:
The coupling device with its axial and radial adjustability serves multiple functions: positioning, alignment, and secure connection. By designing a single multi-functional coupling mechanism rather than separate systems for each function, the overall device complexity is kept manageable.
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The invention relates to a gas filter device (1), in particular a dust filter, comprising a filter body (2) of which the filter material (3) is arranged in an annular fashion in the cross-section of the filter body (2) and is rotatably arranged around a longitudinal center axis (4) of the filter body (2) in the at least one rotary nozzle (7) for backwashing the filter material (3), and a filter carrier (11) on which each filter body (2) is fastened in the assembled state and which has a single-sided outlet opening (14) which communicates with an interior space (8) of the filter body (2) and which has a delivery connection (15) for the supply of each rotary nozzle (7) with a backwash gas. To reduce the required installation space, a coupling device (19) is provided which has an annular, axially fitting surface (20) on the connecting piece (21) arranged on the filter body (2) and connected in communicating fashion to each rotary nozzle (7). Said coupling device (19) has a coupling sleeve (22) which has an annular cross-section, is arranged on the delivery connection (15), and fits tightly in an axial direction on the fitting surface (20) in the assembled state.