The spiral air duct will certainly be affected in the low temperature environment, so how should our manufacturer deal with this situation? First Acid and alkali resistant rubber hose company Do a good job in thermal insulation and select thermal insulation materials (applicable to industry and construction industry), but the selection of thermal insulation materials (applicable to industry and construction industry) is also necessary. Shandong Hongyuansheng, a spiral air duct manufacturer, will tell you how to choose. Good thermal insulation performance. The specification of the next thermal insulation material (applicable to industry and buildings) should meet the requirements of the air duct system used, not only that, but also the design requirements of the air duct. The thermal insulation material (applicable to industry and buildings) has product quality certificates and other qualified documents. Galvanized spiral air duct is widely circulated in the municipal spiral air duct market. The galvanized steel plate spiral air duct is basically the feature of stainless steel spiral air duct, but its price is only two thirds or even lower than that of stainless steel air duct. Composite spiral air duct is generally used in the environment where the environment is common, and the requirements for air duct are not too high. Thermal insulation materials (used in industry and construction) can effectively protect pipelines from damage in winter. Galvanized spiral air duct is widely circulated in the spiral air duct market. The galvanized steel plate spiral air duct is basically the feature of stainless steel spiral air duct, but its price is only two thirds or even lower than that of stainless steel air duct. Shaoxing Acid and alkali resistant rubber hose It is generally used in the environment where the environment is common, and the requirements for air ducts are not too high. In terms of clean air ducts, fire-resistant closed cell rubber foam insulation materials (used in industry and buildings) are generally used, and incombustible aluminum (aluminum) foil glass wool board is used for smoke exhaust ducts. These two materials are common and have good thermal insulation performance.

With the rapid development of the national economy and the continuous improvement of the technical level, almost all walks of life need to do exhaust ventilation systems, Shaoxing Acid and alkali resistant rubber hose What are the advantages worth pursuing? 1. The welding method is unique. It adopts a new low temperature welding form, which does not damage the galvanized layer of the product. The welding spot is firm, the weld seam is beautiful, and the sealing is good. After welding, no treatment is required for the weld seam. 2. The manufacture of mechanically formed air duct makes the high-quality galvanized sheet not damaged, and the galvanized layer not damaged, thus prolonging the service life. 3. The specification is uniform and the size is standard, which ensures that the inner wall of the pipeline is flat and smooth, so that it is easy to clean and the material transportation is smooth. 4. The self forming flange can make the pipe material uniform, no longer use angle steel flange, and reduce the pipe weight by more than 20%, so the load bearing capacity of the building can be greatly reduced, thus reducing the overall cost of the building. 5. Enhance the beautiful pipeline, beautiful appearance, exquisite structure, smooth lines, superior performance, and the installation of exposed air ducts, especially suitable for this product. 6. Typical round air pipe fittings are generally 3-6 meters long and rectangular pipe fittings are 1-1.5 meters long, reducing the connection points of pipe fittings and minimizing the leakage at the joint of pipe fittings. 7. The pipe fittings, joints and spare parts made by mechanized assembly line all have standard sealing rings. As they are produced in a standardized and factory way, they have better air tightness. 8. Mechanically formed compression ribs and stiffeners can improve the strength of the pipe wall, save material thickness and reduce costs. The thickness of the seam of the spiral pipe is 4 times that of the pipe body, which makes the pipe very rigid and has the best pressure bearing performance, especially the negative pressure. 9. Scientific joint and seaming methods can ensure smooth pipeline gas without affecting pipeline flow diameter. Therefore, mechanized assembly line production improves production efficiency and effectively shortens delivery cycle. Advanced computer process control program blanking, production, Acid and alkali resistant rubber hose company It ensures the dimensional accuracy of pipeline components, thus ensuring fast and convenient installation and construction, and improving work efficiency and economic benefits.

You know? Shaoxing Acid and alkali resistant rubber hose Are there reinforcement regulations and requirements? Stainless steel welded air duct is a commonly used equipment, and its reinforcement actually has regulations and requirements, do you know? If in pipe support is adopted, the spacing between each support point and the edge or flange of the air duct shall be uniform, and the value shall not be greater than 950 mm. If the corrugated bars or wires are used for reinforcement, the arrangement should be regular and the spacing should be even. Moreover, there should be no obvious deformation and other problems for the board surface. If the welded air duct is reinforced, it should be made of ribbed bars, vertical bars, angle steel, flat steel, reinforcing bars and supports inside the duct. The appropriate one can be selected according to the actual situation and needs. If angle steel or reinforcing bars are used, they should also be arranged neatly and symmetrically. The height shall not be greater than the flange width. Principles and requirements for stainless steel air duct plate connection. When the thickness is less than or equal to 1mm, the splicing of plates shall be done by biting or riveting. When the thickness of plates is greater than 1mm, argon arc welding or electric arc welding shall be used instead of gas welding. The mature argon arc welding process of "single side welding, double side forming" shall be adopted; When assembling weldments, the welding materials and process measures selected for spot welding shall be consistent with the formal Acid and alkali resistant rubber hose company The requirements are the same. The misalignment deviation of the pipe butt joint is less than 20% of the wall thickness and less than 2mm. Adjust the butt joint clearance, and do not use the method of heating, tensioning and twisting the pipe. It is not allowed to strike an arc or test the current on the weldment, and the pipe surface shall be free of arc scratch and other defects. Splash prevention measures shall be taken during welding. After welding, the slag and spatter shall be cleaned with stainless steel flat shovel. After welding, the slag on the weld surface and the spatter on both sides shall be cleaned.

Let's take a look today Shaoxing Acid and alkali resistant rubber hose How should the maintenance work be done? Firstly, the thickness of galvanized air duct splice plate shall be within the range specified in various specifications. If it is less than the thickness, it is easy to have defects such as cracking and wrinkling due to significant increase of bending force, abnormal damage of forming roll, overload of transmission system, boring, etc. Secondly, in the dedusting system: galvanized air ducts can be used for the collection and transportation of dedusting devices. In terms of air exhaust system: there is a large amount of smoke in the dining room, dining room and hotel kitchen, which needs air exhaust. The galvanized pipe is more appropriate, with good strength, economy and practicality. In air conditioning system: galvanized air duct can be pasted with thermal insulation materials, and the surface is beautiful. In bulk material transportation: in the pneumatic conveying system, some materials with fine loose particles can be transported by galvanized pipes, which has low cost and good effect. In the ventilation system: fresh air is supplied and discharged, harmful gases are discharged outdoors, and outdoor fresh air is sent indoors. The strength of stainless steel plate is greater than that of ordinary steel plate. When stainless steel plate is used for seaming, first of all, a forming test should be carried out to avoid overloading of equipment and excessive wear or mechanical problems. Due to the poor plasticity of aluminum plate, it is easy to crack when biting into forming. Forming test shall be conducted before construction. The last point is that the protection and decoration of the galvanized layer of the galvanized air duct can be significantly improved after passivation treatment, dyeing or brushing light protective agent. and Shaoxing Acid and alkali resistant rubber hose The fire prevention function of is mainly reflected in that it is nonflammable, but it should be noted that whether the insulation layer is burned depends on the material. We recommend that galvanized air duct materials use nonflammable insulation materials such as centrifugal glass wool.