Jiangsu Haifa Machinery Manufacturing Co., Ltd.

With the rapid development of the new energy industry, large-scale compressed air energy storage (CAES) power stations are becoming an important component of the new power system. As key auxiliary equipment for the stable operation of the compressed air energy storage system, "circulating water pumps, makeup water pumps, and miscellaneous pump packages" play a critical role in the cooling system, makeup water system, and drainage system of the power station, providing stable and reliable fluid transport support for the entire energy storage system. During the operation of a CAES power station air compressors, expanders, motors, and heat exchange equipment generate a large amount of heat, necessitating a comprehensive circulating cooling system for heat exchange. As one of the core devices, the circulating water pump is primarily responsible for the continuous circulation of cooling water between the cooling tower, heat exchangers, and main equipment, ensuring stable system temperature operation. For large-scale CAES projects, it is typically recommended to use high-efficiency double-suction centrifugal pumps, axial flow pumps, or API 610 standard process pumps. These pumps feature high flow rates, high efficiency, stable operation, and easy maintenance, meeting the requirements for long-term continuous operation of the power station. Additionally, when combined with first-class energy efficiency motors and intelligent variable frequency control systems, overall energy consumption can be further reduced, improving the economic efficiency of the power station. In the makeup water system, the makeup water pump is mainly responsible for providing stable water supply to the circulating water system, demineralized water system, and fire water system. Due to the high requirements for water quality and operational reliability in CAES power stations, it is typically recommended to use multi-stage centrifugal pumps, stainless steel vertical pumps, or high-pressure boiler feed pump structures to meet stable water supply needs at medium to high heads. Furthermore, CAES power stations also involve multiple auxiliary process scenarios such as sewage discharge, sump drainage, chemical dosing, fire protection, and emergency drainage, requiring a well-configured miscellaneous pump system. Common configurations include submersible sewage pumps, self-priming pumps, chemical pumps, magnetic drive pumps, and metering pumps to cover different media and complex working conditions. Given that CAES power stations typically feature "large capacity, long cycles, and high reliability," the following aspects need special attention during pump equipment selection: High reliability and continuous operation capability: Power stations generally require long-term stable operation of equipment, so the pump body must feature low vibration, low failure rate, and long service life. Energy saving and high efficiency: The circulating water system consumes significant power, so it is recommended to use first-class energy efficiency pump sets and variable frequency adjustment schemes to reduce overall energy consumption. Intelligent monitoring: It is advisable to configure vibration monitoring, bearing temperature monitoring, and remote operation and maintenance systems to achieve real-time monitoring of equipment status. Corrosion resistance and adaptability to complex water quality: For circulating water, demineralized water, and chemical media conditions, materials such as 304, 316L, duplex stainless steel, or special anti-corrosion materials can be used to extend equipment service life. In the future, as large-scale CAES power station projects continue to be implemented, the market demand for circulating water pumps, makeup water pumps, and miscellaneous pump packages will also continue to grow. The pump industry is gradually upgrading from traditional industrial supporting roles to new energy storage, high-end intelligence, and green energy efficiency, providing important equipment support for the construction of new energy infrastructure. Jiangsu Haifa Machinery Manufacturing Co., Ltd. was restructured from Jiangsu Ligong Group Co., Ltd., formerly the Jingjiang Stainless Steel Pump and Valve Factory of the Steel Research Institute of the Ministry of Metallurgical Industry, established in 1958. It mainly produces API 610 chemical process pumps - OH1 pumps, OH2 pumps, OH3 pumps, OH4 pumps, BB1~BB5 multi-stage pumps, VS1~VS6 barrel casing pumps, HES type chemical process pumps, sixth-generation ultra-low carbon stainless steel high-quality leak-proof molten urea pumps, urea hydrolyzer feed pumps, high-temperature asphalt pumps, pitot tube pumps, rotary jet pumps, molten salt pumps, vertical submerged pumps, high-temperature nitric acid magnetic drive pumps, magnetic drive pumps for conveying solid-containing media, industrial pumps, canned motor pumps, slurry pumps, titanium tetrachloride pumps, strong self-priming pumps, fluoroplastic-lined pumps, leak-proof pumps, alkali pumps, axial flow pumps, long shaft vertical submerged pumps, CQC first-class energy efficiency chemical pumps, and high-pressure descaling industrial pumps. www.jslgpump.com Contact number: 13905263417 E-mail: jslgpump@gmail.com E-mail: jsareva@163.com