Pneumatic Distributor Valve with Guide Elements
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Solution Overview
Problem
Existing pneumatic distribution machines face issues where material is undesirably entrained by air flowing through closed distributor lines, disrupting even material distribution under unfavorable conditions, and existing solutions either allow air to escape or fail to block material effectively.
Innovation Solution
The gate valve is designed with a non-concentric cylinder section and plate-shaped guide elements that are offset and radially aligned, allowing air to escape while preventing material from reaching blocked distribution lines, ensuring even distribution and effective shielding of blocked lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the side ends of the gate valve terminate at a considerable distance from the side walls of the plenum, then air can escape via the blocked distributor lines maintaining even material distribution, but material is undesirably entrained by the air flowing through the blocked lines
Solution Approach 1:
Plate-shaped guide elements are introduced as intermediary components between the gate valve and the distributor lines. These guide elements selectively allow air to pass through while blocking material particles, serving as a mediator that separates the airflow function from material transport function in the blocked distributor lines.
Solution Approach 2:
The gate valve structure is segmented by adding plate-shaped guide elements that create distinct functional zones: one allowing air passage and another blocking material. This segmentation enables different parts of the blocked distributor lines to serve different purposes - air escape paths while preventing material contamination.
2Object-generated harmful factors
If the side ends of the gate valve end directly in sliding guides attached to the side walls, then blocked distribution lines are completely blocked preventing material access, but the even distribution of material to non-blocked lines is disturbed due to trapped air
Solution Approach 1:
The plate-shaped guide elements act as intermediaries that maintain complete material blocking while providing alternative air escape paths. These elements are positioned to block material contact with blocked distributor lines while leaving gaps or channels that allow air to escape, thus maintaining both blocking effectiveness and pressure equilibrium.
3Productivity
If a non-concentric cylinder section gate valve is used, then the working width can be reduced and air can escape through blocked lines, but material may still be entrained under unfavorable conditions
Solution Approach 1:
Plate-shaped guide elements are positioned within the non-concentric gate valve structure to serve as intermediaries. These elements create controlled passages that allow air to escape through the blocked lines while the offset positioning and radial alignment prevent material particles from following the air flow paths into the blocked distributor lines.
Data Source
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AI summary
Distributor for a pneumatic distribution machine for seeds, fertilizer and the like, with the following features: 1.6. a distributor head (1) defining an annular distributor chamber (5), 1.7. at least one supply line (2) opens into the distributor head, 1.8. distributor lines (4) connect to the distributor head at a distance from the supply line, 1.9. at least one shut-off valve (6, 6'), 1.10.The shut-off valve is slid into and movable out of the annular distribution chamber such that the side ends (9) of the shut-off valve are spaced apart from the inlet openings (3) of the distribution lines and/or from the side walls (7) of the distribution chamber in its shut-off position, so that air from the supply line to the inlet openings of the shut-off distribution lines passes through the space between the side ends (9) of the shut-off valve and the adjacent side wall (7) of the distribution chamber, characterized in that plate-shaped guide elements (12) extending to the side walls (7) of the distribution chamber (5) are arranged in the area of the side ends (9) of the shut-off valve, and that a gap-like distance (8) is present between the side ends of the shut-off valve and the free ends (13) of the plate-shaped guide elements (12).