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Emulsion Pump Pressure Relief, Aaron Greean
Emulsion Pump Pressure Relief, Aaron Greean
Mechanical Engineering and Technology Senior Projects
Over time the harsh outdoor environment wears away at asphalt surfaces. Asphalt emulsion is sprayed onto the surface to act as a sacrificial barrier. To pump this asphalt emulsion for spray application an effective pressure relief device must be incorporated. High pressure is needed to achieve the desired spray pattern, but this same pressure can cause components to fail in the presence of a pressure spike. Hydraulically driven positive displacement pumps are used to pump the emulsion, so a pinched hoses or a clog in the system results in a severe pressure spike. Due to the emulsions viscosity and abrasive …