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Home > News| At present, the five conditions of pipeline pump selection |
| Date: 2017-3-14 Hits: 1154 |
| Pump selection basis, should be in accordance with the process, water supply and drainage requirements, be considered from five aspects, both the volume of liquid delivery head, liquid, removing essence, pipeline arrangement and control operation Pump selection basis, should be in accordance with the process, water supply and drainage requirements, be considered from five aspects, both the volume of liquid delivery head, liquid, removing essence, pipeline arrangement and control operation condition. 1 flow is one of the important functions of the pump data, directly linked to the production of all devices in order to transport capacity. If the imaginary process can be calculated in the pipeline pump normal, minimum, maximum three kinds of flow. Decided to pump, the maximum flow based, taking into account the abnormal flow, not the maximum flow, where the desired flow rate of 11 times as the largest flow. 2 removal system is required to lift the pump is another important performance data, the individual should be used to enlarge the 5% - 10% margin after the head to choose. 3 liquid liquid medium containing the essence, title, physical properties, chemical properties and other physical nature, quality of solid particles is temperature C density D viscosity u medium diameter and body content, which affects the system's head, to effective cavitation margin and the right pump paradigm: chemical properties, chemical liquid medium important means the deterioration and toxicity, selection and selection of important material pump according to that a seal. 4 removing system piping arrangement condition refers to send high fluid delivery fluid delivery fluid from toward the suction side such as the minimum level, the highest level of overhead side some data and specifications and the length of pipe, pipe materials, specifications, quantity, check to perform system comb head calculation and npsh. 5 a lot of information content control premise, such as the manipulation of T liquid saturated steam power with P suction side pressure PS) the relative overhead side of the container pressure PZ altitude, ambient temperature control crack or persistent pump status is still flowing can shift. |
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