Heat Exchanger Unit Manufacturer: Advantages of Heat Exchanger Unit Design and Processing in Boiler Applications
Release Time:
2020-11-12 12:03
Source:
Heat exchanger unit It is an energy-saving device that realizes heat transfer between two or more fluids at different temperatures. It transfers heat from a higher temperature fluid to a lower temperature fluid, making the fluid temperature reach the process specified index to meet the needs of the process technology conditions, and it is also one of the main devices to improve energy utilization.
Heat exchanger unit Design and processing advantages in boiler applications:
1 、The impact on the normal operation of the boiler, to prevent Heat exchanger unit The flue gas flow resistance is too large to affect the normal operation of the boiler. After fully considering the resistance of the heat exchange tube, the Heat exchanger unit Cross-sectional area is increased.
2、 Heat exchanger unit Maintenance issues ， Because the boiler is a coal-fired boiler, the flue gas contains a large amount of dust. After long-term use, the outer wall of the heat exchange tube will adhere to the ash layer, which will affect the heat exchange efficiency. Heat exchanger unit Up and down 2 The shell plates are fixed with bolts for regular cleaning of the outer wall of the heat exchange tube. At the same time Heat exchanger unit Both ends are connected to the circular air duct with flanges, which can be easily disassembled and repaired if necessary.
3、 Considering the thermal expansion of the heat exchange tube, an expansion bend is processed under the heat exchange tube to eliminate the thermal expansion of the pipe.
4、 Water quality control : Because the water tank side is direct mixing heat exchange, it is necessary to prevent scaling inside the heat exchange tube ； At the same time, the heating water is also used for bathing, and it cannot be pure softened water, so Heat exchanger unit High-efficiency scale inhibitors are used to prevent not only water scaling, but also oxidation and corrosion of the system piping and equipment by water.
5、 System circulation ， To improve Heat exchanger unit In order to improve the heat exchange efficiency, the system uses a water pump for forced circulation convective heat exchange. Comprehensive consideration of preventing water from Heat exchanger unit Internal vaporization, preventing gas from staying in the system, and minimizing the consumption of circulating electricity, therefore, the water flow rate in the heat exchange tube is determined as 0.5m/s。
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