Compressed Air Filter With Circumferential Air Guide Member
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Solution Overview
Problem
Existing filters for compressed air in pneumatic systems face inefficiencies in removing foreign matters like liquid and oil due to sudden changes in air flow, causing droplets to detach and mix with the compressed air, reducing the effectiveness of filtration.
Innovation Solution
A filter design featuring an air guide member with slits that tilts the flow of compressed air toward its circumferential direction, guiding it to the inner surface of the air guide member, where droplets can accumulate without reaching the outflow port, enhancing the filtration efficiency by preventing droplets from mixing with the purified air.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If air flow rate increases sharply due to sudden change in compressed air consumption, then productivity increases, but droplets detach from the filter element and mix with the compressed air, reducing purification efficiency
Solution Approach 1:
The air guide member acts as an intermediary structure between the filter element and the outflow port. It includes a guide portion that extends along the inner peripheral surface of the filter element and a slit that tilts the air flow toward the circumferential direction. This intermediary structure guides the compressed air flow to prevent droplets from mixing with the purified air, thereby maintaining purification efficiency even when productivity increases.
2Productivity
If the filter element processes high flow rate air, then productivity improves, but droplets scattered by the high velocity air reach the outflow port, worsening purification quality
Solution Approach 1:
The air guide member introduces a circumferential flow component by tilting the air flow through the slit. Instead of allowing droplets to move directly radially outward toward the outflow port, the air flow is redirected along the circumferential direction, effectively adding a dimensional component to the flow path that prevents droplet migration to the outflow port while maintaining high flow rate processing capacity.
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 effectively improves the removal efficiency of foreign matters by ensuring that droplets adhere to the air guide member and flow downward into a storage chamber, preventing them from being mixed with the purified compressed air, thus maintaining high filtration efficiency even with sudden changes in air flow.
Implementation Method 1
the air guide member is provided with a slit that tilts a flow of the compressed air filtered through the filter element toward a circumferential direction of the air guide member so that the compressed air is guided to an inner surface of the air guide member
Implementation Method 2
a filter element provided between the upper holder and the lower holder
Implementation Method 3
droplets adhered to the inner surface of the filter element and having reached an inner surface of the filter element agglomerate on this inner surface, and form into droplets. The droplets move downward along the inner surface of the filter element
Data Source
AI summary
A filter (10) has a port block (13) provided with: an inflow port (11) to which compressed air is supplied; and an outflow port (12) from which purified compressed air flows out. A filter container (14) is attached to the port block (13), and an element assembly (30) is disposed inside the filter element (31). The element assembly (30) has: a filter element (31); and an air guide member (41) provided inside the filter element (31). The compressed air filtered through the filter element (31) is guided to an inner surface of the air guide member (41) through a slit (46).