Description
Overview
Essential details:SW-1200063 DURACROM PUMP ABB
A pump is a machine that transports or pressurizes fluid. It transfers the mechanical energy or other external energy of the prime mover to the liquid, making the liquid energy increase. Pump is mainly used to transport water, oil, acid lye, emulsion, suspension emulsion and liquid metal and other liquids, but also can transport liquid, gas mixture and liquid containing suspended solids. Pumps can usually be divided into three categories according to the working principle: positive displacement pumps, power pumps and other types of pumps. In addition to classification by working principle, it can also be classified and named by other methods. For example, according to the driving method can be divided into electric pump and hydraulic pump; According to the structure can be divided into single-stage pump and multistage pump; According to the use can be divided into boiler feed pump and metering pump; According to the nature of the liquid can be divided into pumps, oil pumps and mud pumps. According to the axial structure, it can be divided into linear pumps and traditional pumps. The pump can only transport the fluid as the medium of the flow, can not transport solid.
Application field
In the production of chemical and petroleum sectors, raw materials, semi-finished products and finished products are mostly liquids, and the raw materials into semi-finished products and finished products, need to go through complex processes, pumps in these processes to transport liquids and provide chemical reaction pressure flow role, in addition, in many devices also use pumps to regulate the temperature.
In agricultural production, the pump is the main drainage and irrigation machinery. China’s rural area is vast, rural areas need a large number of pumps every year, generally speaking, agricultural pumps account for more than half of the total output of pumps.
In the mining and metallurgical industry, the pump is also the most used equipment. In the process of mineral processing, smelting and rolling, the pump is needed to provide water and so on.
In the power sector, nuclear power plants need nuclear main pumps, secondary pumps, tertiary pumps, thermal power plants need a large number of boiler feed pumps, condensate pumps, oil and gas mixed transport pumps, circulation pumps and ash and slag pumps.
In the construction of national defense, the adjustment of aircraft flaps, tail rudder and landing gear, the rotation of warships and tank turrets, and the ups and downs of submarines all need pumps. High pressure and radioactive liquids, some also require the pump without any leakage.
In short, whether it is aircraft, rockets, tanks, submarines, drilling, mining, trains, ships, or daily life, pumps are needed everywhere, and pumps are running everywhere. This is the case, so the pump is listed as a general machinery, it is a major product in the machinery industry.
Electric pumps, that is, pumps driven by electricity. The electric pump is composed of a pump body, a lifting pipe, a pump base, a submersible motor (including a cable) and a starting protection device. The pump body is the working part of the submersible pump, which is composed of the inlet pipe, the guide shell, the check valve, the pump shaft and the impeller. There are two ways to fix the impeller on the shaft.
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