350Y metal plate distillation tower packing 150mm small column packing
Stainless Steel Perforated Plate Corrugated Packing Standard
Inspection and acceptance of 350Y distillation packing
Acceptance rules
The whole packing disc assembled by mould shall be checked in batches, and the packing of each specification can be divided into batches according to the following table. When the order quantity of a certain type of structured packing is less than the batch quantity specified in the table below, the whole order can be regarded as a batch.
The sampling quantity of each batch of structured packing shall be 10% of the total number of disks, but at least not less than 2 disks.
| Disk Diameter D (mm) | Batch Quantity (m3) |
| ≤800 | 5 |
| >800 | 10 |
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
1 General Provisions
1.1 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.
1.2 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 ℃.
1.3 The structured packing is suitable for the clean gas-liquid system without solid particles or suspended solids or easy to self assemble.
2. Reference standard: GB / T 4239 cold rolled stainless steel and heat resistant steel strip
3.1 Mark
HG/T 21559.2—2005—P×××—×××
Standard No. - year No. - packing model - inner diameter of tower Φ (mm)
For example, the inner diameter of packing tower is Φ 600mm, and p250i type stainless steel orifice corrugated packing is used, which is marked as follows: HG/T 21559.2—2005—P250I—600.
3.2 Specifications and characteristics
3.2.1 Stainless steel orifice corrugated packing is a number of corrugated plates pressed from stainless steel strip, which are vertically stacked and assembled into a disc-shaped structured packing according to the requirements of a certain diameter. The corrugations of the adjacent corrugated plates are inclined in the opposite direction, and the corrugations of the upper and lower adjacent packing plates are 90 ° crossed.
3.2.2 Before the corrugated plate is pressed, it is necessary to punch holes on the plate in advance and press the fine grain, or use the rolling grain equivalent to the fine grain.
3.2.3 Eight types of stainless steel orifice plate corrugated packing are listed in the table. The characteristic parameters of the type selection are the specific surface area of the packing and the angle of the corrugation, which can be selected according to the process design requirements.
Stainless steel orifice corrugated plate
h: corrugation height (mm)
2B: corrugation distance (mm)
β: corrugation angle (°)
δ: plate thickness (mm)
S: corrugation length (mm)
R: radius of curvature of the top circle of corrugation angle (mm)
every year we manufacture and supply hundreds of cubic meters of metal structured packing in different models. There are many popular types and materials for option. Custom order is welcome, too! We are happy to help with what you need!
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