The feedwater system of Huaneng Dezhou Power Plant undertakes core tasks such as unit circulating water replenishment and boiler feedwater pre delivery, requiring the water pump to have the characteristics of high flow rate, low head, and continuous stable operation. The vertical long axis semi submersible inclined flow turbine pump is fully suitable for the working conditions of the power plant and can replace traditional centrifugal pumps as feedwater pumps, greatly reducing long-term operating energy consumption.
Core performance advantages
Efficient and energy-saving adaptation: The inclined flow impeller design of the vertical long axis semi submersible inclined flow turbine pump exhibits excellent efficiency in the high flow range, covering the full operating conditions of variable water level and variable makeup water load in power plants. Compared with conventional makeup water pumps, it can significantly reduce operating power consumption, which is in line with the operating goal of cost reduction and efficiency improvement in power plants.
Strong structural adaptability: adopting a vertical suspension layout, the pump body can be directly suspended on the foundation of the supply water tank, and the difficulty of civil construction is low; The long axis structure can customize the underwater length according to the depth of the pool, and the motor is arranged above the liquid level, making daily inspection and maintenance operations safer and more convenient.
High operational stability: The pump inlet is completely submerged below the lowest water level, completely avoiding the risk of cavitation and ensuring uninterrupted water replenishment for the power plant; The guide vane type pressure chamber has a smooth flow channel, low hydraulic loss, excellent vibration and noise control performance, and is suitable for 24-hour uninterrupted operation requirements in power plants.
High maintenance convenience: Adopting a rotor withdrawable structure, there is no need to disassemble the pump body and external pipelines during daily maintenance. Core components such as impellers and guide vanes can be directly extracted from the upper part to complete maintenance, greatly reducing the downtime for maintenance and minimizing the impact on the power plant's water replenishment system.