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1. Main components of single-stage centrifugal pump: There are two types of pump shell: axial split type and radial type split type. Most single-stage centrifugal pumps have a volute type housing. The radial split housing of a multi-stage centrifugal pump is generally an annular or circular housing. The volute casing has a spiral flow path. Used to collect liquid from the impeller and lead it to the diffuser to the pump outlet. The pump housing withstands the full working pressure and thermal load of the liquid.
2. The main components of a single-stage centrifugal pump: The impeller impeller is the only component that performs the work. The pump works on the liquid through the impeller. The structure of the impeller is closed, open, semi-open three. The closed impeller consists of blades, front cover and rear cover. The semi-open impeller consists of a blade and a rear cover. The open impeller has only blades and no front and rear covers. The closed impeller has a higher efficiency and the open impeller has a lower efficiency.
3, the main components of a single-stage centrifugal pump: The role of the sealing ring seal ring is to prevent the pump from leakage and leakage, made of wear-resistant material, the sealing ring, set in the impeller front and rear cover plate and pump casing. Can be replaced after wear.
4. Main components of single-stage centrifugal pump: One end of shaft and bearing pump shaft is fixed with impeller, and the other end is equipped with coupling. According to the size of the pump, bearings and rolling bearings are selected.
5, single-stage centrifugal pump main components: shaft seal shaft seals are generally mechanical seal and packing seal two. General pumps are designed to be packed into both packing seals and mechanical seals.
Single-stage centrifugal pump features:
1. High-efficiency and energy-saving: CFD computational fluid dynamics is used to analyze and calculate the relationship between pressure distribution and velocity distribution in the pump and optimize the flow path design of the pump to ensure that the pump has an efficient hydraulic shape and improves the efficiency of the pump.
2, installation, maintenance convenience: vertical pipeline structure, the pump's import and export can be installed like a Valve in any location and any direction of the pipeline, installation and maintenance is extremely convenient.
3, smooth operation, safe and reliable: the motor shaft and the water pump shaft for the coaxial direct connection, high concentricity, smooth operation, safe and reliable.
4, stainless steel sleeve: shaft sealing position is relatively easy to be rusted, once the direct coupling pump shaft rust, easy to cause mechanical seal failure. STG pump is equipped with inserting stainless steel sleeve here to avoid rust, increase the shaft life and reduce the cost of operation and maintenance.
5. Bearing: In the motor equipped with a pump, Y (Y2) 280 shaft end bearing (including Y180 following blade end bearing) adopts closed bearing. When it is used normally, maintenance of motor bearing is avoided.
6, mechanical seal: mechanical seal base generally use rubber bellows structure, the traditional mechanical seal in the shaft seal from the O-ring of the line seal to the two surfaces of the rubber seal, in the clean water medium to improve the sealing effect.
Single-stage centrifugal Pump structure: