Electrolytic copper is a non-ferrous metal with very close relationship with human beings. It is widely used in electric, light industry, machinery manufacturing, construction industry, national defense industry and other fields, second only to aluminum in the consumption of non-ferrous metal materials in our country.
Copper is the most widely used and widely used in the electrical and electronics industries, accounting for more than half of the total consumption. For a variety of cables and wires, motor and transformer windings, switches and printed circuit boards.
Used in the manufacture of machinery and transport vehicles for the manufacture of industrial valves and fittings, gauges, sliding bearings, molds, heat exchangers and pumps.
In the chemical industry is widely used in the manufacture of vacuum, distillation pots, brewing pots.
In the defense industry for the manufacture of bullets, shells, guns and other parts, each producing 1,000,000 rounds of ammunition, the need for copper 13-14 tons.
In the construction industry, used as a variety of pipes, pipe fittings, decorative devices.
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Pump selection of the five basis features
Design Institute in the design of equipment, to know the purpose and performance of the pump to choose the right pump. And how do we choose the right pump, pump selection and what are the basis? The following we will study in detail the selection of pumps. Pump selection basis, should be based on process, water supply and drainage requirements, to be considered from five aspects, namely, liquid delivery volume, the device head, the nature of the liquid, piping layout and operating conditions, etc. 1, the flow rate is selected pump important performance data One, it is directly related to the entire plant's production capacity and delivery capacity. Such as the design process can be calculated in the pump normal, minimum, maximum three kinds of flow. Select the pump, based on the maximum flow, taking into account the normal flow, in the absence of maximum flow, usually desirable 1.1 times the normal flow as the maximum flow. 2, the lift system required for installation of the pump is another important performance data, generally to enlarge the 5% -10% head lift to choose. 3, the liquid properties, including the name of the liquid medium, physical properties, chemical properties and other properties, the physical properties of the temperature c density d, viscosity u, medium particle diameter and gas content, etc., which involves the system lift, effective gas Erosion margin calculation and the type of suitable pump: Chemical nature, mainly refers to the liquid medium chemical corrosion and toxicity, is the selection of pump materials and choose an important basis for the type of shaft seal. 4, the installation of piping system conditions refers to the liquid from the height of the liquid into the liquid distance to the suction side such as the lowest level, the highest level of the discharge side of some data and pipe specifications and length, material, pipe specifications, the number , Etc., in order to carry out the Department of combing head calculation and NPSH check. 5, the operating conditions are many, such as the operation of the liquid T saturated steam P, suction side pressure PS (absolute), the discharge side of the tank pressure PZ, altitude, ambient temperature operation is gap or continuous, the pump position is fixed Or removable. Far East Centrifugal Pump Tip: Based on the above pump selection basis, we can easily choose the right pump according to their desired choice. In strict accordance with the pump selection basis, we should note that the selected pump should be as small as possible, the price is cheap, with good characteristics, long life, smooth operation, low operating costs and so on.