Corrugated Perforated Metal Sheet 250Y 0.15mm Structure Packing In Distillation Column
1. 250Y structured packing's typical application fields for metal structured packings are processes with following operating conditions: low irrigation densities high gas loads, low pressure drop requirement high demand of transfer units.
2. Structural dimension and characteristic parameters of stainless steel orifice corrugated packing.
| Item | Unit | 125X | 125Y | 250X | 250Y | 350X | 350Y | 500X | 500Y |
| corrugation height h | mm | 24.0 | 11.5 | 8.4 | 6.0 |
| corrugation inclination θ | (°) | 30 | 45 | 30 | 45 | 30 | 45 | 30 | 45 |
| corrugation distance 2B | mm | 39.6 | 19.0 | 14.0 | 9.9 |
| corrugation angle β | (°) | 79.0 | 79.1 | 79.6 | 79.0 |
| void fraction ε | δ=0.15mm | % | 99.4 | 98.6 | 98.0 | 97.2 |
| δ=0.12mm | % | 99.5 | 98.9 | 98.4 | 97.8 |
| δ=0.10mm | % | 99.6 | 99.1 | 98.7 | 98.2 |
| Perforated hole diameter d0 | mm | 4.5 | 4.5 | 4.0 | 4.0 |
| Opening rate σ | % | 8.5-9.5 | 8.5-9.5 | 9.0-10.0 | 9.0-10.0 |
| radius of curvature of the top circle of corrugation angle R | mm | ≤2.0 | ≤1.4 | ≤0.9 | ≤0.5 |
Note: The influence of opening rate on the plate is not calculated
3. 250Y structured packing standard general provisions
3.1 This standard specifies the requirements for marking, specification and characteristics, materials, manufacturing requirements, inspection and acceptance, marking, packaging, storage and transportation of stainless steel orifice corrugated packing products, as well as the calculation of characteristic parameters of orifice corrugated packing.
3.2 The corrugated packing with stainless steel orifice plate is suitable for gas-liquid mass transfer separation tower equipment, and the applicable temperature of the packing is - 200 ~ 400 ℃.
3.3 The structured packing is suitable for the clean gas-liquid system without solid particles or suspended solids or easy to self assemble.
4. Geometric parameters of 250y structured packing layer
Corrugated packing is widely used in structured packing. Its geometric parameters are generally characterized by the geometric structure and characteristic size of the corrugated sheet, which is the monomer of the packing layer.
① Peak height h
② Wave distance 2B
③ Tooth apex angle ξ
④ Inclination angle of corrugation
Generally, the B ≈ h and ξ of corrugated packing are 75 - 90, 78 - 81, φ = 45 (Y type), 30 (X type).
⑤ The hydraulic (or equivalent) diameter DH is used to characterize the size of the fluid channel of the regular packing unit, which can be derived according to the rules of fluid mechanics
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250Y 0.15mm Corrugated Structured Packing Distillation Column Internals Images
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