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As the core vacuum equipment for dealing with high corrosion conditions, the working principle of Shanghai Yetuo anti-corrosion circulating water vacuum pump not only continues the vacuum acquisition logic of traditional circulating water vacuum pumps, but also achieves stable operation in corrosive environments through special structural and material design. Its core mechanism can be disassembled from three dimensions: "vacuum generation", "anti-corrosion protection", and "high efficiency heat dissipation". From the core logic of vacuum generation, the anti-corrosion circulating water vacuum pump is consistent with traditional equipment, both operating based on the principle of "water ring vacuum": the motor drives the impeller to rotate at high speed inside the pump body. At this time, the circulating water injected into the pump body will form a stable "water ring" along the inner wall of the pump chamber under the action of centrifugal force. Multiple "sealed chambers" of varying sizes will be formed between the water ring and the impeller blades as the impeller rotates. When the impeller rotates clockwise, the volume of the right chamber gradually expands, the internal pressure decreases, and negative pressure is formed. At this time, gas is sucked in through the inlet; As the impeller continues to rotate, the chamber volume gradually decreases, the air pressure increases, and the gas is compressed and discharged through the exhaust port. Through this cycle of "suction compression exhaust", the equipment continuously reduces the air pressure inside the system, ultimately achieving the required vacuum degree. The special adaptation of anti-corrosion design is the key to distinguishing it from traditional equipment. To avoid the erosion of the pump body by corrosive media, the equipment has been upgraded on the "core components in contact with the media": parts such as the pump chamber and impeller that directly come into contact with gas or liquid are made of corrosion-resistant materials such as reinforced polypropylene (PP) and polytetrafluoroethylene (PTFE). These materials not only have strong chemical stability and can resist the corrosion of strong acids and alkalis, but also prevent impurities from chemical reactions between metal materials and media; Secondly, the sealing structure abandons traditional metal mechanical seals and uses corrosion-resistant rubber sealing rings or PTFE seals to prevent corrosive media from leaking from the seal and prevent seal failure due to corrosion; In addition, the pipeline interfaces of the intake and exhaust ports are also made of anti-corrosion materials and equipped with corrosion-resistant valves to ensure that the entire gas flow path is under "anti-corrosion protection". At the same time, the synergy between high-efficiency heat dissipation and water circulation system ensures the long-term stable operation of the equipment. Due to the high-speed friction between the impeller and the water ring during equipment operation, heat is generated. If the temperature is too high, it may affect the vacuum degree and even accelerate material aging. Therefore, anti-corrosion circulating water vacuum pumps usually have an independent heat dissipation circuit built in: while participating in the formation of a water ring, the circulating water will flow through the cooling jacket or heat exchanger outside the pump body, and take away heat through air or water cooling to maintain the water temperature in the optimal range of 30-40 ℃; Some devices are also equipped with an intelligent water temperature monitoring system. When the water temperature exceeds the threshold, it will automatically activate the water replenishment or strengthen the heat dissipation function to avoid a decrease in vacuum caused by high water temperature. In addition, the water circulation system also filters impurities in the water to prevent them from blocking the pump chamber or wearing out the impeller, further extending the service life of the equipment. It is through the combination design of "vacuum principle+anti-corrosion upgrade+heat dissipation optimization" that Shanghai Yetuo anti-corrosion circulating water vacuum pump can not only achieve stable vacuum with high efficiency, but also operate reliably for a long time in corrosive conditions such as chemical and pharmaceutical industries, becoming an indispensable "anti-corrosion vacuum instrument" in industrial production.
