Introduction of Stainless Steel Corrugated Packing
Stainless steel corrugated packing is divided into mesh corrugated packing, wire mesh corrugated packing, perforated plate corrugated packing, calendered perforated plate corrugated packing, etc.
Stainless steel corrugated packing is also known as stainless steel packing, packing, deaerator packing, mesh corrugated packing, chemical packing, coalescer packing, high-efficiency corrugated packing, strong-effect corrugated packing, etc.
Stainless steel wire mesh corrugated packing
Stainless steel wire mesh corrugated packing is also known as metal wire mesh packing, wire mesh packing, wire mesh corrugated packing, stainless steel corrugated packing, stainless steel packing, and stainless steel structured packing.
Stainless steel wire mesh corrugated packing models: CY, BX, AX;
Stainless steel wire mesh corrugated packing standard number: HG/T21559.3-2005
The main specifications of stainless steel wire mesh corrugated packing materials are: 60 mesh 1M*30M, 50 mesh 1M*30M, wire diameter: 0.15MM/0.12MM. We can customize certain special styles according to customer requirements.
Stainless steel wire mesh corrugated packing materials: stainless steel 304, 321, 316, 316L, 321, 310S, 904L, 347, 2205, 2507, S30408, S30403, S31603, S31608, S32168, S31008, copper, aluminum, pure titanium, molybdenum titanium, Hastelloy, Monel, Inconel, nickel-chromium alloy, nickel-copper alloy, etc.
Stainless steel wire mesh corrugated packing is composed of several parallel upright meshes woven with stainless steel wire. The corrugation direction of the mesh is at a certain inclination angle (usually 45°) with the tower axis. The inclination direction of the corrugation of the two adjacent pieces is opposite, so a triangular cross-section channel network that intersects and penetrates each other is formed between the corrugated meshes. The meshes assembled together are hooped with a belt-shaped wire mesh to form a cylindrical disk. The diameter of the packing disk should be slightly smaller than the inner diameter of the tower by about 2mm, so that it can be loaded into the tower without crowding. When the packing is loaded into the tower, the mesh directions of the upper and lower packing plates are 90 degrees, and the packing forms a uniform geometric pattern arrangement in the tower, which stipulates the gas-liquid flow path, improves the channel flow and wall flow phenomenon, and plays the role of packing.
Performance of stainless steel wire mesh corrugated packing: The performance of stainless steel wire mesh corrugated packing mainly depends on: a large specific surface area (m2/m3 packing layer); the liquid has a good uniform distribution performance on the surface of 700Y wire mesh corrugated packing; the airflow can evenly distribute the seasoning in the packing layer and has a large porosity (m3/m3 packing layer). Under the same operating conditions, the larger the specific surface area of 700Y wire mesh corrugated packing, the more uniform the gas-liquid distribution, the better the surface wetting performance, and the higher the mass transfer efficiency. The larger the porosity of the packing and the more open the structure, the greater the flux and the lower the pressure drop. The fuzzy mathematical method was used to evaluate the performance of nine commonly used packings. The wire mesh corrugated packing has a better overall performance, while the Raschig ring has a worse performance.
Structural features of stainless steel wire mesh corrugated packing:
1. Large specific surface area, high porosity and light weight;
2. The gas phase passage has a small inclination angle and a regular gas phase passage, resulting in less pressure loss and lower packing pressure drop;
3. Good radial diffusion and sufficient gas-liquid contact;
4. Avoid clogging, corrosion, and difficulty in cleaning, and can only be cleaned by chemical methods.
5. The unit volume filler has a high cost, which limits its scope of use.
The main geometric parameters of the wire mesh corrugated packing that determine its mesh are:
1. Wire diameter and mesh number: The diameter of stainless steel wire in foreign countries is generally about 0.16mm, woven into a 80-mesh wire mesh; domestically, the wire diameter is generally 0.10~0.25mm, and the corresponding wire mesh is 80~40 mesh. The thickness of the wire mesh is determined by the wire diameter. Generally, the thickness of the stainless steel wire mesh is 0.10~0.25mm. The peak height and peak distance are generally taken as about 2 times the peak height. The size of the peak height directly determines the porosity e, specific surface area a, and bulk density P of the filler.
2. Tooth shape and tooth angle: The tooth shape of the wire mesh corrugated packing is an isosceles triangle, and the recommended tooth angle is 75 degrees to 90 degrees.
3. Corrugation inclination angle: The inclination angle of the corrugation edge to the tower axis, generally 30* (commonly known as X-type) and 45* (commonly known as Y-type).
4. Opening: Generally, small holes are punched on the corrugated sheet. The hole diameter is preferably 4~5mm, the hole spacing is about 10mm, and they are mostly arranged in a regular triangle. The opening rate is 5.6%~18.4%.
5. Plate height: determined by the height of the packing tray; usually 40~300mm, depending on the tower diameter.
Stainless steel orifice plate corrugated packing
Stainless steel orifice plate corrugated packing is also known as stainless steel orifice plate packing, stainless steel corrugated packing, stainless steel structured packing, metal orifice plate corrugated packing, stainless steel high-efficiency structured packing, metal plate corrugated packing, orifice plate corrugated packing.
Stainless steel orifice plate corrugated packing models: Y-type, X-type (125y, 200y, 250y, 350y, 500y, 125x, 250x, 350x, 500x, etc.);
Stainless steel orifice plate corrugated packing standard: HG/T21559.2-2005;
Stainless steel orifice plate corrugated packing material: GB/T4239 "Stainless steel and heat-resistant steel cold-rolled steel strip" product standard materials, copper, aluminum, pure titanium, titanium alloy, Hastelloy, etc.
Common material grades of stainless steel orifice corrugated packing: stainless steel 304, 321, 316, 316L, 321, 310S, 904L, 347, 2205, 2507, S30408, S30403, S31603, S31608, S32168, S31008, copper, aluminum, pure titanium, molybdenum titanium, Hastelloy, Monel, Inconel, nickel-chromium alloy, nickel-copper alloy, etc.
Stainless steel orifice plate corrugation not only has high porosity and large specific surface area, but also has the advantages of high compressive strength, good thermal shock resistance and high operating temperature. Its separation ability is similar to that of wire mesh corrugated packing, but its anti-blocking ability is stronger than that of corrugated packing. When installing the stainless steel orifice plate corrugated packing, the upper and lower plates of corrugated packing are rotated 900 degrees and stacked. In the tower with a smaller diameter connected by flanges, the corrugated packing is made into a whole disc with a diameter slightly smaller than the inner diameter of the tower. In the tower with a larger diameter, each disc of corrugated packing is divided into several pieces, put into the tower through the manhole, and assembled into complete discs in the tower. The corrugated sheets of the upper and lower plates of packing are rotated 900 degrees to install, so that the fluid is fully mixed in the tower.
When manufacturing the stainless steel orifice plate corrugation, small holes are punched on the corrugated sheet first, and fine lines are pressed, or rolling lines equivalent to fine lines are used, such as dots, dotted lines, etc. The company's technical engineers divide the packing into blocks according to the size of the tower and make block drawings (the blocks should be easy to install), calculate the block size and the size of each piece. The calculated block corrugated sheet size is assembled according to the requirements of the drawing, and the spot connection is firmly connected with arc welding, and finally assembled into a cylindrical corrugated stainless steel sheet with oblique teeth.
Application and advantages of stainless steel perforated plate corrugated packing: Due to the uniform, regular and symmetrical structure, the pressure drop of stainless steel perforated plate corrugated packing can be very small when it has the same specific surface area as bulk packing, while providing more specific surface area, and can achieve higher mass transfer and heat transfer effects in the same volume. The metal perforated plate corrugated packing has a larger porosity, a larger flux, and a much larger comprehensive processing capacity than plate towers and bulk packing towers. Therefore, various general-purpose regular packings represented by metal perforated plate corrugations are used in industry. Stainless steel perforated plate corrugated packing is mainly used in petrochemical industry (such as oil-water separator packing and coalescer packing in crude oil processing), fertilizer industry, natural gas purification, smelting, etc. Such as coal chemical industry (benzene washing tower and debenzene tower for recovering crude benzene in coking plants), ethylene styrene separation, high-purity oxygen preparation, propylene oxide separation, debutanizer tower, cyclohexane recovery, gasoline fractionation, atmospheric and vacuum refining and other devices.
Stainless steel mesh plate corrugated packing
Stainless steel mesh plate corrugated packing is also known as stainless steel perforated plate corrugated packing, mesh plate corrugated packing, stainless steel perforated plate packing, stainless steel structured packing, stainless steel corrugated plate packing, metal perforated plate corrugated packing, stainless steel packing, stainless steel high-efficiency structured packing, and metal plate corrugated packing.
Stainless steel mesh plate corrugated packing models: SPC450, SPC550, SPC650, SPC750;
Stainless steel mesh corrugated packing standard: HG/T21559.1-2003 (replaces the original standard HG/T21559.1-1995)
Stainless steel mesh corrugated packing material: GB/T4239 "Stainless steel and heat-resistant steel cold-rolled steel strip" and GB/T3280 "Stainless steel cold-rolled steel plate and steel strip" product standard materials, copper, aluminum, pure titanium, titanium alloy, Hastelloy, etc.
Common material grades of stainless steel mesh corrugated packing: stainless steel 304, 321, 316, 316L, 321, 310S, 904L, 347, 2205, 2507, S30408, S30403, S31603, S31608, S32168, S31008, copper, aluminum, pure titanium, molybdenum titanium, Hastelloy, Monel, Inconel, nickel-chromium alloy, nickel-copper alloy, etc.
Stainless steel orifice plate corrugated packing is composed of several metal corrugated sheets with parallel and vertically arranged corrugations. There are small holes on the corrugated sheets (or no holes as needed). The corrugated top angle is about 90°, and the channel formed by the corrugation is at an angle of 45° or 30° to the vertical direction. The flow channels of two adjacent corrugated sheets are 90°, and the upper and lower plates of corrugated packing are rotated 90° and stacked. In the tower with a smaller diameter and connected by flanges, the corrugated packing is made into complete discs with a diameter slightly smaller than the inner diameter of the tower. In the tower with a larger diameter, each plate of corrugated packing is divided into several pieces, put into the tower through the manhole, and assembled into complete discs in the tower. The corrugated sheets of the upper and lower plates of packing are rotated 90° to install, so that the fluid is fully mixed in the tower.
Metal mesh packing is also known as high-efficiency structured packing, stainless steel wire mesh packing, stainless steel mesh packing, wire mesh corrugated packing, metal mesh packing, stainless steel wire mesh corrugated packing, and metal mesh corrugated packing.
High-efficiency structured packing implementation standards: HG/T 4374-2012, HG/T 21559.1-2013, HG/T 21559.2-2005, HG/T 21559.3-2005;
Wire mesh filler material: stainless steel 304, 321, 316, 316L, 321, 310S, 904L, 347, 2205, 2507, S30408, S30403, S31603, S31608, S32168, S31008, copper, aluminum, pure titanium, molybdenum titanium, Hastelloy, Monel, Inconel, nickel-chromium alloy, nickel-copper alloy, etc.
High-efficiency structured packing implementation standards: HG/T 4374-2012, HG/T 21559.1-2013, HG/T 21559.2-2005, HG/T 21559.3-2005;
Wire mesh filler material: stainless steel 304, 321, 316, 316L, 321, 310S, 904L, 347, 2205, 2507, S30408, S30403, S31603, S31608, S32168, S31008, copper, aluminum, pure titanium, molybdenum titanium, Hastelloy, Monel, Inconel, nickel-chromium alloy, nickel-copper alloy, etc.
Metal mesh packing is a highly efficient packing widely used in the world. It is a disc-shaped packing composed of several parallel and straight metal corrugated mesh sheets. It has the characteristics of large specific surface area, large porosity, light weight, small and regular gas phase passage angle, low pressure drop, good radial diffusion and sufficient gas contact.
Advantages of wire mesh packing
1. Metal mesh packing is a high-efficiency packing widely used in countries around the world. Its main advantages are:
2. High theoretical plate number, large flux, and reduced pressure;
3. Good low-load performance, the theoretical plate number increases with the reduction of gas load, and there is almost no low-load limit;
4. Large operating flexibility;
5. The amplification effect is not clear and easy;
6. It can meet the requirements of precision, large-scale, and high-vacuum distillation devices. It provides favorable conditions for the distillation separation of difficult-to-separate systems, heat-sensitive systems, and high-purity products.
Application of metal mesh filler
: MSAX-2500: precision distillation with high production intensity and low theoretical plate number;
MSBX-5000: vacuum distillation of heat-sensitive and difficult-to-separate special series, especially vacuum distillation with pressure less than 7KPa.
MSCY-7000: separation of isotope mixtures and isomeric mixtures.
Metal mesh packing
Metal mesh packing is also known as high-efficiency structured packing, stainless steel wire mesh packing, stainless steel mesh packing, wire mesh corrugated packing, metal mesh packing, stainless steel wire mesh corrugated packing, and metal mesh corrugated packing.
High-efficiency structured packing implementation standards: HG/T 4374-2012, HG/T 21559.1-2013, HG/T 21559.2-2005, HG/T 21559.3-2005;
Wire mesh filler material: stainless steel 304, 321, 316, 316L, 321, 310S, 904L, 347, 2205, 2507, S30408, S30403, S31603, S31608, S32168, S31008, copper, aluminum, pure titanium, molybdenum titanium, Hastelloy, Monel, Inconel, nickel-chromium alloy, nickel-copper alloy, etc.
High-efficiency structured packing implementation standards: HG/T 4374-2012, HG/T 21559.1-2013, HG/T 21559.2-2005, HG/T 21559.3-2005;
Wire mesh filler material: stainless steel 304, 321, 316, 316L, 321, 310S, 904L, 347, 2205, 2507, S30408, S30403, S31603, S31608, S32168, S31008, copper, aluminum, pure titanium, molybdenum titanium, Hastelloy, Monel, Inconel, nickel-chromium alloy, nickel-copper alloy, etc.
Metal mesh packing is a highly efficient packing widely used in the world. It is a disc-shaped packing composed of several parallel and straight metal corrugated mesh sheets. It has the characteristics of large specific surface area, large porosity, light weight, small and regular gas phase passage angle, low pressure drop, good radial diffusion and sufficient gas contact.
Metal perforated plate corrugated packing
Metal perforated plate corrugated packing is also known as structured packing, metal perforated plate corrugated packing, metal rolled hole corrugated packing, metal mesh corrugated packing, chemical packing, corrugated packing, mesh corrugated packing, perforated plate corrugated packing, rolled perforated plate corrugated packing, and stainless steel packing.
High-efficiency structured packing implementation standards: HG/T 4374-2012, HG/T 21559.1-2013, HG/T 21559.2-2005, HG/T 21559.3-2005;
Metal orifice plate corrugated packing materials: stainless steel 304, 321, 316, 316L, 321, 310S, 904L, 347, 2205, 2507, S30408, S30403, S31603, S31608, S32168, S31008, copper, aluminum, pure titanium, molybdenum titanium, Hastelloy, Monel, Inconel, nickel-chromium alloy, nickel-copper alloy, etc.
, stainless steel perforated plate corrugated packing, metal perforated plate corrugated packing, metal corrugated packing, stainless steel mesh corrugated packing, stainless steel corrugated packing, stainless steel perforated plate packing, stainless steel mesh packing.
Metal perforated plate corrugated packing is made by punching holes on the surface of metal sheets, rolling small and large corrugations, and finally assembling them. It has the characteristics of small resistance, uniform gas-liquid distribution, high efficiency, large flux, and insignificant amplification effect. It is used in negative pressure, normal pressure and pressurized operations. The effect of using metal perforated plate corrugated packing to transform plate towers is particularly obvious. The tower diameter range of processed packing is φ150mm-12000mm or more.
This packing maintains the structural characteristics of metal wire mesh corrugated packing, and is made of perforated plates with grooves on the surface, which increases the uniform distribution of liquid and the wetting performance of packing, and improves the mass transfer efficiency. The height of each plate unit is 50-200mm, the diameter exceeds 1.5m, and the packing is made in block form.
Application of metal perforated plate corrugated packing: metal perforated plate corrugated packing has the advantages of large flux, small resistance, high efficiency and strong anti-blocking ability. It is widely used in unit operations such as distillation, absorption and extraction. According to the packing model, the minimum tower diameter is 80-200MM, the maximum diameter has reached 13M, the liquid spray density can be from 0.2-200M3 / (M²·H), and the pressure range can be from vacuum to high pressure. It is a universal and efficient structured packing suitable for chemical, fertilizer, oil refining, petrochemical, natural gas and other industries.
SW type mesh corrugated packing geometric characteristic parameters
| Packing model | Material | Peak height h mm | Specific surface area m2/m2 | Hydraulic diameter ah/mm | Tilt Angle | Void rate% | f factor m/s kg/m2 | Theoretical plate no/m | Pressure drop mmhg/m |
| SW-1 type | Stainless steel | 4.5 | 643 | 5.7 | 45 | 91.6 | 1.4-2.2 | 5-8 | 2-3.5 |
| SW-1 type | 6.5 | 450 | 9 | 30 | 95.5 | 1.5 | 4-5 | 1.6-1.8 |
Wire mesh corrugated packing geometric characteristic parameters SC=CY SB=BX
| Packing model | Material | Peak height h mm | Specific surface area m2/m2 | Hydraulic diameter ah/mm | Tilt Angle | Void rate% | f factor m/s kg/m2 | Theoretical plate no/m | Pressure drop mmhg/m |
| CY | Stainless steel | 4.3 | 700 | 5 | 45 | 87-90 | 1.3-2.4 | 6-9 | 5 |
| BX | 6.3 | 500 | 7.3 | 30 | 95 | 2-2.4 | 4-5 | 1.5 |
Geometric characteristic parameters of perforated plate corrugated packing
| Packing model | Material | Peak height h mm | Specific surface area m2/m2 | Hydraulic diameter ah/mm | Tilt Angle | Void rate% | f factor m/s kg/m2 | Theoretical plate no/m | Pressure drop mmhg/m |
| SM125 | Stainless steel | twenty four | 125 | 35 | 45 | 98.5 | 3 | 1-1.2 | 1.5 |
| SM225 | 12 | 250 | 15.8 | 45 | 97 | 2.6 | 2-3 | 1.5-2 |
| SM325 | 8 | 350 | 12 | 45 | 95 | 2 | 3.5-4 | 1.5 |
| SM425 | 6.5 | 450 | 9 | 45 | 93 | 1.5 | 3-1 | 1.8 |
Geometric characteristic parameters of rolled perforated plate corrugated packing
| Packing model | Material | Theoretical plate no/m | Peak height h mm | Void rate% | Specific surface area m2/m2 | Pressure drop mmhg/m | f factor m/s kg/m2 |
| 700Y | Stainless steel | 5-7 | 4.3 | 85 | 700 | 7 | 1.6 |
| 500X | 3-4 | 6.3 | 90 | 500 | 2 | 2.1 |
| 250Y | 2.5-3 |
| 97 | 250 | 2.25 | 2.6 |
Types of structured packing: stainless steel wire mesh packing, stainless steel perforated plate corrugated packing, wire mesh corrugated packing, stainless steel packing, packing, rolled perforated plate corrugated packing, metal wire mesh packing, etc.
