Application Case of ANYHZ FST-650L Series Inverter in Heating System Circulating Pump

Project Overview

Taking a heating project in a certain city as an example, the project is divided into two phases and uses 16 ANYHZ frequency converters FST-650L series. In the first phase of the project, ANYHZ frequency converters are applied to 4 induced draft fans, 4 feedwater pumps, and 3 heat network circulating water pumps. Through the application of frequency converters, precise control of the circulating pump has been achieved, improving the system's regulation efficiency and economy.

Technical solution

• Selection of frequency converter: FST-650L series frequency converter is adopted, which is suitable for motor control in this project due to its high quality, high efficiency, and high energy saving characteristics.
• Control strategy: Adjust the speed of the circulating pump through a frequency converter to change the circulating flow rate of the heating network, in order to adapt to changes in heating load and achieve energy conservation.
• Energy saving effect: After adopting a frequency converter, the overall energy saving rate reaches 36.4%.

Implementation effect

• Energy saving benefits: Through the application of frequency converters, the transportation energy consumption of the heating system has been significantly reduced, achieving the goal of energy conservation and emission reduction.
• Economic benefits: It saves a lot of electricity expenses and improves the economy of the heating system.
• System stability: The application of frequency converters improves the regulation accuracy of the system, enhances the stability and reliability of the heating system.

Conclusion:

In the heating system, the application of frequency converters in circulation pumps is an effective means to improve energy efficiency and economic benefits. By precisely controlling the speed of the circulating pump, it is possible to adapt to changes in heating load, achieving the dual goals of energy conservation and reducing operating costs. Practical application cases have shown that this technological solution has significant energy-saving and economic benefits.