(1) reciprocating pump, stainless steel instantaneous flow of the magnetic pump without considering any volume loss under the premise of reciprocating pump discharge at every moment of the flow is called the theoretical instantaneous flow, referred to as the instantaneous flow. Multi-cylinder blue pump instantaneous flow refers to the sum of the flow of all cylinders at the same instantaneous discharge. Diaphragm pump reciprocating pump flow curve shown in Figure 2-47. It can be seen from the figure that the more the number of liquid cylinders, the more uniform the instantaneous flow rate Q of the synthesis. However, the number of liquid cylinders is too large and the structure of the reciprocating pump is complex, making it difficult to manufacture and maintain. Therefore, it usually adopts double-cylinder double-acting, triple-cylinder single-acting, single-cylinder single-acting and single-cylinder double-acting pump. (2) Non-uniform flow coefficient Non-uniform flow coefficient is a measure of the extent of the two indicators of flow pulsation. Reciprocating pump instantaneous flow rate non-uniform coefficient & Q1, & Q2 and the number of cylinders, the role of the number shown in Table 2-8, Table 2-9. (3) to reduce the flow of reciprocating pump pulsation reciprocating pump due to uneven flow will result in discharge pressure pulsation, when the discharge pressure changes with the natural frequency of discharge pipe equal or integral multiple, it will cause resonance. At the same time, the load of the prime mover will be uneven, shortening the service life of the reciprocating pump and the pipeline, and also damaging the suction conditions of the pump. There are two ways to reduce the pulsation of the reciprocating pump flow: â‘ Multi-cylinder pump or double-acting pump is selected. â‘¡ installed in the reciprocating pump import and export gas chamber, so that the import of flow non-uniform coefficient (&) control in 0.0025 ~ 0.0l25; outlet flow uneven coefficient (song) control in 0.005 ~ 0.04.
WPC Planter,Outdoor Planter,Wood Plastic Planter
WPC Decking Co., Ltd. , http://www.hswpcdecking.com