Free-standing Stainless Steel Chimneys product material
The choice of Free-standing Stainless Steel Chimney liner material is determined by the smoke exhaust environment. The temperature of oil-fired boiler flue gas, kitchen oil flue gas, etc. is lower than 300℃, and the corrosion is lower. SUS304 stainless steel plate is generally used. SUS304 stainless steel plate or galvanized steel plate can be selected for the outer wall of the flue, and SUS304 stainless steel plate should be selected for the outer wall of the outdoor flue.
Aluminum silicate filling combined with high temperature resistant foaming material is selected as insulation material, and aluminum silicate fiber felt material is selected as the field connection of the equipment. The thickness of insulation layer is generally based on the temperature of different smoke exhaust medium, and the insulation material with the thickness of 50mm, 75mm and 100mm is selected. See "flue wall thermometer" for details.
Free-standing Stainless Steel Chimneys product features
1. The product is safe and reliable, high temperature resistance, corrosion resistance, good heat insulation and insulation function.
2. Advanced technology, reasonable structure, stable process and reliable quality; Long service life (expected 50 years) and usually no maintenance.
3. Light weight, scientific and reasonable support combination, simple and convenient field equipment; Can greatly reduce labor intensity, reduce equipment costs.
4. Convenient equipment: the difficult and messy process of making equipment in the narrow shaft at high altitude is transformed into workshop production, integrated molding, and shipped to the site to combine equipment, which not only simplifies the equipment procedure, but also ensures the production quality problems in the inner liner, heat insulation layer and shell many links. Together, it becomes easy to assemble equipment on site.
5. Beautiful and generous appearance, can be used as a wall chimney to decorate the facade of the building.
6. Good function, it is the replacement product of brick, cement and general carbon steel chimney.
Free-standing Stainless Steel Chimneys installation process
1.Free-standing Stainless steel chimney installation using high quality steel: steel plate thickness is 16㎜, length is 20m, the winding machine processing into a diameter of 1.4m cylinder type, and then all the seams for internal and external welding, welding, should be full of welding slurry, no holes, smooth surface.
2..Free-standing Stainless steel chimney bottom flange with thickness of 20㎜ plate, aperture of 28㎜, with ￠26㎜ x 100㎜ bolts and ground foundation connected.
3. Weld three fixed points equal to each other at 5m to 20m from the bottom of the steel chimney, so as to connect the wind cable and the ground anchor points for connection and fixing.
4. Pour a chimney foundation with 2m diameter and 2.3m depth (thickness) on the ground with commercial concrete.
5.The chimney foundation steel structure with ￠16㎜ of spiral steel, spiral steel density of 24 roots, the upper and lower connection using ￠12㎜ of spiral steel binding.
6.The foundation and steel chimney fixed bolts are embedded in the reinforced concrete foundation, and the distance distribution is reasonable and uniform.
7.When the steel chimney is installed with the automobile crane and the chimney barrel is connected with the foundation screw, the double nut is used to fix it. When the chimney is lifted to the corresponding position, the wind cable is connected with the ground anchor, and the Angle between the wind cable and the ground is not more than 60°.
8. After the overall lifting and installation of the steel chimney welding, the inner and outer tubes of the chimney should be fully painted and anti-corrosive. When painting, the surface of the chimney cylinder must be treated, the weld slag impurities must be cleaned up, and the surface of the cylinder should be evenly brushed to keep the surface smooth and bright.
9. The relationship between the diameter of the self-supporting chimney and the corresponding position height should be determined after calculation according to the strength and deformation requirements, and should meet the diameter of the lower part of the chimney, and take other tension damping and measures.
10. The local stability of the chimney under bending moment and axial force should be checked according to bending moment, horizontal seismic action and corresponding axial pressure action. (Stainless steel smoke pipe)
11. Under the action of bending moment and axial force, the axial stability coefficient and overall stability of welded chimney tube section are calculated according to the cantilever structure.The thickness of the insulation layer must be determined by thermometer calculation, and the minimum thickness is above 50. The thickness of the insulation layer of full radiation furnace type chimney shall not be less than 75.
12. When the chimney smoke temperature exceeds 560 degrees, the uranium firmware of the insulation layer can be made of stainless steel (1Cr18Ni9Ti).
13, when the critical wind of the chimney is less than 6m/s to set the wind ring. The critical wind speed of the chimney is 7m/s~12m/s, which is lower than the wind speed of the design scheme, and the choice of changing the distance of the chimney, diameter and thickening countermeasures can also be set to break the wind circle.
Hebei Pude Yuelan Environmental Protection Equipment Co., Ltd. is an enterprise engaged in the development and production of industrial chimneys, the company focuses on the development and production of industrial chimneys.
Headquartered in Jingxian Development Zone, Hebei Province, the company has a registered capital of 60 million yuan, covers an area of 9.60000 square meters, of which the building area is 2600 square meters. The main products include self-supporting smoke, sleeve smoke, tower chimney, east smoke, cable smoke, stainless steel chimney, glass steel chimney, mobile compressed garbage bin, horizontal compressed garbage station, hook arm transfer truck, butt type garbage truck and dozens of products. The company has 128 employees, including 8 experts and engineers with master's degree or above, 60% of the employees with bachelor's degree or junior college degree, all kinds of technical personnel 26 people, 60 people special personnel, the company has a number of domestic offices and after-sales service institutions, can provide technical support and product services at any time.
The company's production equipment advanced, strong technical force. Has more than 50 sets of domestic advanced production equipment, including foreign, domestic CNC production lines 6; Hot-dip galvanizing adopts the galvanizing technology and process of Gimeco Company in Italy, and its technical level and production capacity are at the advanced level in China.
After years of development in chimney and municipal waste treatment equipment industry, the company has become a well-known brand in the industry. Through the cooperation with domestic and international design institutes, colleges and enterprises to continuously improve the enterprise's scientific research and development ability. And has cooperated with many universities and reached strategic cooperation with petrochina, Sinopec, Huadian, Huaneng and other enterprises.
In recent years, in order to solve the problem of large-caliber smoke, the company has established a technical cooperation relationship with Beijing Jiaotong University, and invested a lot of manpower and material resources to develop the "precast factory, on-site construction" steel corrugated chimney and urban waste environmental treatment products. At present, the pipe diameter range of the company's products is 0.5m-20m, and the annual production capacity is 660,000 meters.
The company always adhere to the "quality, user" of the enterprise purpose, do not ask for the number of projects, just do the project to make good quality principle, products have been promoted in the project use. Today, the company's products still maintain zero defects, zero complaints, zero accidents, by the owners, construction units of the consistent praise, and establish a long-term cooperative relationship.