Secondary Air Heater technical requirements, in order to ensure safe operation of equipment, vessel design, manufacture, inspection shall comply with the relevant national or corporate standards. 2, the supplier of parts and components used must be advanced technology and techniques, and after more than two years of operating practice has Masaaki is mature and reliable products. 3, heater meets the technical parameters of the original horizontal installation in vertical ducts. 4, the transformation of rotary air heater air heater, can rotate independently of each piece, enabling 0-90 ° rotation, the unit operates without stop fan can be swung open, the rotating mechanism is simple and lightweight. 5. Heater group after welding pressure parts for 1.5 times the design pressure of the hydrostatic test, ensure safe and stable operation. 6, rotary actuators imported brands, the actuator torque must open normally open Yasumasa Heater, installation location should Yasumasa operation and maintenance easy. 7, air heater should be designed to protect the original technical requirements of the auxiliary steam release all latent heat in the air heater, after heating the air condenses into water in the heater, heater design should hydrophobic smooth. 8, for the convenience of air heater hydrophobic, vertical air duct should be installed in a hydrophobic slope, at least 5 degrees. 9, the heater is provided with thermal expansion compensation means to meet practical use. 10, product size to the supplier to the scene measured values ??prevail. 11, the interface requires the use of an effective structure or member Yasumasa rigor. 12, air heater design pressure and design temperature should be able to meet the most demanding performance and steam parameters. 13, the supplier shall take effective measures to prevent heater generates vibrations in the run-time conditions. 14, between the air heater should be sealed tight piece, seamless wind phenomenon. Heater should Yasumasa hydrophobic smooth, heat transfer tubes must not leak phenomenon. In case, the supplier should unconditionally timely replacement of the air heater group, is responsible for losses caused by the supplier. 15, the supplier shall advance into the plant measured data, and provide equipment installation and construction programs (including: inlet pipes, hydrophobic docking system; duct assembly and welding, measuring devices, installation, etc.), to ensure reliable equipment installation. Second, the air heater material 1, air heater heating tubes using 20G (high-pressure boiler quality carbon structural steel, size: Φ32 * 3) +1060 aluminum (99.7% purity aluminum, specifications: Φ60) whole-rolled steel and aluminum finned tube. 2, the rotary air heater inlet, hydrophobic use SMS Tengzhou rotary joint, made of 316L Power fan heater rotary joint, long-term service in the temperature of 600 ℃, 4.0Mpa of pressure conditions; 2. ball seal structure can be around the axis of rotation of 360 ° and also can swing ± 15 ° angle; 3. unique multi-spring compensation mechanism, which automatically compensates for wear; 4. by the SMS Siemag special material spherical seals, anti-vibration, thermal shock ; 5. Simple structure, easy maintenance, detailed parameters, please contact technical department Tengzhou SMS 0632-5266186