Commonly used agricultural pump - centrifugal pump profile

Centrifugal pump is a common pump for agricultural pumps, but also the most widely used pump among agricultural pumps. According to the way water flows into the impeller, the number of impeller, the pump itself can self-absorption and supporting power size and power breeds, etc., the centrifugal pump can be divided into single-stage single suction centrifugal pump, single-stage double suction centrifugal pump, Self-priming centrifugal pumps, motor pumps and diesel pumps. The following is a brief introduction of various types of centrifugal pumps, as follows: Commonly used agricultural pump - Centrifugal Pump Profile 1, single-stage single-stage centrifugal pump Old pump models BA, B single-stage single suction centrifugal pump, 80's, According to the international standards and the actual situation of irrigation and drainage machinery, centrifugal pump products to carry out replacement research and development, and production IB, IQ single-stage centrifugal pump products, has been listed as national professional standards and industry standards. Single-stage single-suction centrifugal pump, water from the axial single-sided into the impeller, the impeller only one, so called single-stage single suction centrifugal pump. Its characteristics are, compared with the mixed flow pump, axial flow pump, higher head, smaller flow, simple structure, easy to use. IQ type single-stage single suction centrifugal pump (also called small and medium-sized centrifugal pump) is designed for China's national conditions and to meet the user's simple structure, light weight, low price, good performance and convenient matching requirements, a total of 84 kinds of products, 3 derivative series, 413 specifications. 2, single-stage double-suction centrifugal pump It is a single-stage double suction centrifugal pump from both sides of the impeller, because the pump cover and the pump body is assembled using horizontal seams, also known as horizontal open centrifugal pump. Compared with single-stage single suction centrifugal pump, high efficiency, large flow, higher head. However, bulky, relatively bulky, generally used for fixed operations. For hilly, plateau medium-sized irrigation area, also applies to factories, mines, urban water supply and drainage and so on. Single-stage double-suction centrifugal pump with S-type, Sh-type, SA-type, SLA-type models, S-type and Sh-type difference is seen from the drive side, S-type pump for clockwise rotation, Sh-type counterclockwise Direction of rotation. SLA type vertical single-stage double-suction centrifugal pump. S-type pump performance range of flow 160 ~ 18000 cubic meters / hour, head 12 ~ 125 meters, inlet diameter 150 ~ 1400 mm, speed 2950,1450,970,730,585,485,360 r / min. 3, multi-stage centrifugal pump compared with single-stage pump, the difference is that the multi-stage pump has two or more impeller, multi-stage multi-stage to absorb water and pressure water, which will be raised to a high water position , Head can be increased or decreased according to the needs of the pump impeller series. Multi-stage pump is mainly used for mine drainage, urban and factory water supply, agricultural irrigation with very little, only for high lift, small flow of mountain water to solve the difficulties of drinking water for people and livestock. Multi-level high-heart pump has vertical and horizontal two types, the main models are D-type, DL-type multistage centrifugal pumps, DW, DWL-type small multistage centrifugal pump. 4, Self-priming centrifugal pump Self-priming pump is a single-stage single-suction centrifugal pump that generates self-priming by its own special structure and is called self-priming centrifugal pump. Compared with the ordinary centrifugal pump, the pump body structure is significantly different: First, the pump inlet position increased, and sometimes also equipped with suction valve; the second is set in the water side of a gas-water separation chamber. Pump self-priming pump, pump plus self-priming device, such as with a vortex pump, water ring vacuum pump, jet pump and hand pump. Self-priming pump compared with ordinary centrifugal pump, with a compact, easy to use, not only eliminates the need for a large number of priming irrigation before starting the trouble, but also eliminates the inlet valve low valve to reduce the water resistance and increase the pump water , But with the same specifications of ordinary centrifugal pump efficiency is lower 3% to 5%. Self-priming pump is more used in light and small sprinkler irrigation and pipe filling machine group. Self-priming centrifugal pump more specifications, ZX type, TC type, BPZ type and ZB type. In summary, the pump pump is commonly used in agricultural pump profile, of course, if you want to know more about agricultural pumps, you can continue to further study on this basis. Read more: China Building Water Exhibition Pump Valve Tube Fittings Exhibition Water Expo Xiamen Maritime Exhibition Internet + Forum Yiwu Expo Industry Interconnection (Xiamen) Technology Co., Ltd. Asia Pump Network Editor: He Duanhui (QQ / WeChat:) http://beng.liuti.cn/ (service hotline:)