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Long pipeline layouts are commonly adopted in centralized chemical raw material transportation and regional concentrated waste liquid collection projects in global chemical parks. The fluid inside the pipeline has large inertial force during high-speed delivery. Emergency pump shutdown or rapid valve closure will make the high-speed flowing liquid produce sharp pressure surge and conduct impact force back to the pump outlet end. Long-term repeated water hammer impact will loosen pipeline flange connections, crack pump outlet casings and accelerate the fatigue aging of internal pump components.
Different from external independent water hammer eliminators that occupy extra installation space and increase system investment cost, Yida integrates a miniature buffer cavity structure at the pump outlet runner. When reverse surge pressure occurs, the buffer cavity can temporarily store instantaneous pressure shock and slowly release pressure back to the pipeline system, weakening the peak value of water hammer impact transmitted to the pump core structure. The built-in buffer structure is formed by integral pump body molding without additional assembly parts, avoiding the sealing hidden danger brought by extra connected accessories.
The surge suppression structure is standardly equipped on large-flow self-priming pumps and heavy-duty MPH magnetic pumps applied to long-distance pipeline transportation. For ultra-long pipeline projects, the built-in buffer structure can be used together with external simple pressure stabilizing accessories to form a dual surge protection system. This inherent structural optimization effectively reduces the failure probability of pumps and supporting long-distance pipelines in global park-level fluid delivery projects, lowers the maintenance frequency of pipeline networks, and improves the overall operation stability of regional centralized corrosive fluid conveying systems.
