structured packing Support device
structured packing Support device
Due to the inherent structural characteristics of structured packing, the supporting device used is simple in structure. The corrugated structured packing supports the grid, and the grid bar spacing is 50~100mm. The lower end of the grid bar is serrated so that the liquid flows down evenly from the tooth tip. For small towers (generally less than 1m in diameter) with flanged cylinders, an integral structure can be made. It is made of 3~10mm thick flat steel, with a grid plate ring and grid bars 50~100mm high, placed on a support ring welded in the tower wall or 4~8 supports evenly distributed along the periphery. The above dimensions are determined by the weight of the packing supported by the grid plate.
For integral towers with manholes, the supporting grid can be made into a block structure. The width of each block is determined by the size of the manhole. If the tower diameter exceeds 2m, an intermediate supporting beam should be added; if the tower diameter is larger, multiple supporting beams should be added.
The supporting beam is generally made of I-beam, and the supporting grid is placed on it, and the surrounding is also placed on the tower wall support ring. The tower wall may also be provided with no support ring. In this case, the supporting grid should be fixed to the supporting beam to prevent the supporting grid from falling and causing an accident. For towers with extra-large diameters, a truss structure can be used instead of a supporting beam, which is conducive to the distribution of gas and liquid.
parameter | Detailed description |
Material | Stainless steel 304/316L, duplex steel, titanium, Hastelloy, etc. |
Grid form | Trapezoidal strip type, grid type, corrugated type |
Supporting capacity | Support load ≥ 5000 kg/m² |
void ratio | ≥ 95% (customized according to working conditions) |
Maximum adaptable tower diameter | ≥ 8 meters (multi-section structure can be customized) |
Surface treatment | Pickling, passivation, sandblasting, electropolishing |
Installation method | Segmented combination / integrated welding |
Grid beam type support device
In the large diameter tower, the support grating needs to be supported by beams, which are generally made of I-beams, which causes local resistance to gas-liquid flow and affects the uniform distribution of gas. Moreover, the large size of the I-beam also occupies the space of the tower, in order to reduce resistance, save materials and facilitate gas-liquid distribution, we have developed a grid beam-type support device, which is made of thick steel plate (5 ~ 10mm). It is made of thick steel plate (5~10mm). The height is determined by the load capacity (100~200mm), and the number of bars in each beam is 5~10, the spacing of bars is 50~100mm, and the bars are reinforced with fixed-pitch plates. Grid beams are fixed on the support welded to the tower wall. There is a connecting plate between the beams, and the conventional block grating is placed on the connecting plate to form a complete supporting grating. The section coefficient of the grating beam is large, so when the weight of the material used is the same, its strength and stiffness are larger than the I-beam, and the grating spacing design is the same as the spacing of the conventional grating plate, so the resistance is small and the gas-liquid distribution is uniform. Jihua Nitrogen Fertilizer Plant in the methanol tower used in the evening 2600, the effect is very good.
project | Technical specifications |
Material selection | Stainless steel 304/316L, Duplex steel, Hastelloy, Titanium alloy |
Grid beam structure | I-beam / square tube beam / flat steel beam (customized) |
Carrying capacity | 5000–10000 kg/m² (customizable) |
Module connection method | Welding/bolting/snap-on splicing |
Maximum supporting tower diameter | ≥10 meters (supports multi-segment combination) |
Installation method | Segmented installation / Modular hanging |
Surface treatment options | Pickling passivation, electropolishing, sandblasting anti-corrosion treatment |
Corrugated fill beam type support device
The corrugated filler beam type support device is basically the same as the grid beam support device. It is a corrugated filler beam assembled by plug welding of 70~125V plate corrugated filler pressed from a metal plate with a thickness of 6~10mm and a height of 100~200mm to replace the grid beam in the grid beam support device. The same type of filler is placed on the connecting bars between the two corrugated filler beams, and its structure is the same as the grid beam. In this way, the support beam and the filler form a complete filler tray. Since it saves the I-beam support beam of the general filler and has a higher section coefficient, it saves the space and metal materials of the tower. At the same time, the beam composed of the corrugated filler has the function of mass transfer and gas distribution.
project | Parameter description |
Support structure form | I-beam, channel steel beam, T-beam, support personalized customization |
Material options | Stainless steel 304 / 316L, 2205 duplex steel, titanium, Hastelloy |
Bearing capacity range | 3000–12000 kg/m² (depending on tower diameter and packing type) |
Maximum adaptable tower diameter | ≥10 m |
Surface treatment | Pickling passivation, electrolytic polishing, sandblasting for corrosion protection, PTFE coating (optional) |
Assembly method | Sectional splicing / Modular lifting / On-site bolt connection |
mating parts | Liquid distributor, wire mesh demister, structured packing, tower ladder/channel |
Product application industry
Petroleum refining & petrochemicals: distillation towers, light oil removal, catalytic cracking recovery towers and other distillation and absorption processes
Chemicals & Chemical Manufacturing: Solvent recovery towers, reaction separation towers, absorption/desorption process towers
Natural gas processing: desulfurization, decarbonization, dehydration gas treatment towers
Environmental protection & waste gas treatment: acidic or alkaline waste gas scrubbers, desulfurization towers, VOC absorption towers
Pharmaceuticals & Food & Beverages: Fermentation distillation, concentration evaporation, precision separation process towers
Coal Chemicals & Synthesis Gas: Synthesis Gas Purification, Coke Oven Gas/Coal Gas Desulfurization and Deamination Devices
FAQ
316L, Duplex stainless steel or high-temperature alloy is preferred, and electrochemical passivation/anti-oxidation coating is applied; corrosion-resistant sheath can be added for strong corrosive media.
First level the bracket or the flange inside the tower, use a level and feet to adjust the gaskets to ensure that the overall level deviation is ≤ 2 mm to avoid local flooding or packing misalignment.
Standardized grid hole positions and beam spacing are suitable for common tower plates; if customized tower plates or special fillers are required, matching sheet metal embedding or flange connection solutions can be provided.
When the support rod/beam is found to be obviously deformed, cracked, or the weld joints are loose, or the performance does not recover after cleaning, the parts should be maintained or replaced in time.
filter element
wire mesh demister pad
filters
