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Determine the pump model combined with fountain equipment
Release time：
2023-12-30 15:38:53
1. the pump type is finally determined based on the fountain hydraulic calculation results. The specification and main performance of the water pump can be basically understood through the nameplate
(1) Pump model: according to the flow, head, size and other types of feed pumps, there are two types of models, old and new;
(2) Pump flow: refers to the water output of the pump in unit time, expressed in or;
(3) Pump lift: refers to the total lift height of the pump. Vacuum height is allowed. This is to prevent cavitation when the water pump is running. The safe height of water absorption determined through experiments has left a safe distance of 0.3m. This index indicates the water absorption capacity of the pump, which is the basis of the installation height of the pump.
2. the selection of pump type is based on the two main factors of flow and head. The method is as follows: determine the flow. The total flow is calculated according to the water power of the fountain. Determine the lift. The total head is calculated according to the water power of the fountain.
Select the water pump. The selection of water pump shall be based on the determined total flow and total head, and it can be selected by checking the nameplate of water pump. If the fountain equipment needs two or more pumps to lift water (Note: when the pumps are connected in parallel, the flow increases and the pressure remains the same; when the pumps are connected in series, the flow remains the same and the pressure increases), calculate the flow of each pump by dividing the total flow by the number of pumps, and then use the pump performance table to select the pump. When checking the table, if both types of pumps are applicable, the model with low power, high efficiency, small impeller and light weight should be preferred.
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