Engineering Services
Qixing Power specializes in the retrofitting of flue gas denitration air preheaters and boasts extensive experience in this field. We have a thorough understanding of the operational conditions of air preheaters at power plants across China. By integrating data on SCR operating parameters at the upper section of the air preheater, inlet and outlet flue gas temperatures, and operating resistance, we scientifically design the height, corrugation pattern, and sealing components of the air preheater’s heat exchange elements—providing a solid foundation for each retrofit project.
We primarily offer the following engineering services:
1. Air Preheater Compartment Grid Modification Project
2. Fan-shaped and Arc-shaped Plate Modification Project for the Air Preheater
3. Reinforcement of the air preheater support steel beams, replacement of expansion joints at the flue gas inlet and outlet, and anti-corrosion work on the flue duct.
4. Adjustment and Replacement Project for the Circumferential, Axial, and Radial Sealing Components of the Air Preheater
5. Service for removing and installing the hot-end and cold-end heat exchange elements of the air preheater
6. Flue Gas Preheater Insulation, Wear-Resistant, and Corrosion-Resistant Renovation Project
7. Disassembly and maintenance work on the mechanical power components of the air preheater (power motor, gearbox, support and drive bearings, lubrication system)
8. Electrical Control System Upgrade and Renovation Project for the Air Preheater (PLC-integrated electrical control and DCS control system integration)
9. Design, installation, commissioning, and renovation works for the air preheater soot-blowing system
10. Leakage Control and Retrofit Project for Air Preheaters (Balanced Contact-Type and Flexible Contact-Type Sealing Devices)
11. Leakage Control and Corrosion-Resistant Replacement Project for Flue Gas Ducts and Expansion Joints at the Air Preheater Inlet and Outlet
12. Enamel Heat-Exchanger Component Installation Project for Flue Gas Heat Exchangers
13. Inspection, Modification, and Repair Works for the Mechanical and Electrical Components of the Flue Gas Heat Exchanger
14. Design, Installation, Commissioning, and Modification Works for Flue Gas Heat Exchanger Sootblowing System
15. Expansion joints for flue gas inlet and outlet of flue gas heat exchangers, and flue gas duct corrosion protection works.
16. Sealing system components for flue gas heat exchangers and overhaul/replacement work on low-leakage fans
Our outstanding engineering technologies primarily include:
1. Unique design of performance parameters for the air preheater and flue gas heat exchanger
2. Simulation and modeling technology for unit retrofit schemes
3. Design and Development Technology for New Types of Heat-Exchanger Element Plate Configurations
4. Flexible Contact Sealing Technology
5. Air Preheater Compartment Grid Modification Technology
6. Sealing Component Gap Design and Adjustment Technology
7. Vertical, Horizontal, and Radial Adjustment Technologies for Air Preheaters
8. Effective ash-prevention technology for soot-blowing and cleaning systems
Address
No. 5, Yuanqu Road, Northern Industrial Park, Hengshui City, Hebei Province
Business license
Website:300.cn
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