Heating and air conditioning circulating pump structure I. Product Overview KD series of heating and air conditioning circulating pump from the suction chamber, pressure chamber, impeller, pump cover, sealing components, etc., motor and pump directly connected, suction chamber and pressure chamber separated, Structure, maintenance without dismantling the pipeline. The pump has the advantages of novel structure, good interchangeability, high assembly precision, strong carrying capacity, convenient maintenance and stable operation. Its performance in line with GB / T5657-94 "centrifugal pump Technical Specifications Ⅲ" standard. Mainly used for air conditioning and refrigeration systems, hot and cold water circulation, high-rise buildings and residential heating heating boilers or heat exchanger cycle, thermal power plants, metallurgy, textile, brewing, sugar, chemicals, pharmaceuticals, waste heat utilization, water supply, irrigation, drainage Pumping station, power station, industrial water supply system, fire protection system, shipbuilding industry and so on. Second, the product features 1, energy-efficient: CFD CFD, analysis and calculation of the pressure distribution within the pump and the relationship between velocity distribution, to optimize the design of the pump flow to ensure that the pump has an efficient hydraulic shape line to improve the efficiency of the pump. 2, smooth operation, safe and reliable: direct connection between the motor and the pump, simplifying the intermediate transmission structure and enhance the stability of the operation, so that the unit running smoothly, safe and reliable. 3, installation and maintenance convenience: the direction of import and export of the pump can be adjusted according to the pipeline, nine adjustable angle installation, easy maintenance. 4, stainless steel sleeve: shaft sealing position is relatively easy to rust, direct-coupled pump shaft once corroded, easy to cause mechanical seal failure. KD-type pump fitted with stainless steel bushings to prevent corrosion occurred, improve the shaft life, reducing the operation and maintenance costs. 5, Bearing: pump equipped with motor, Y (Y2) 280 below the shaft end bearings (including Y180 below the blade end bearings) with closed bearings, to remove the normal conditions for the motor bearings to the maintenance work. 6, mechanical seal: mechanical seal base member generally use rubber bellows structure, the traditional mechanical seal on the shaft seal from the O-ring seal to the two pieces of rubber seal to improve the sealing effect. Third, the working conditions Flow: 4 ~ 1600m3 / h Head: 4.5 ~ 50m Medium temperature 0 ℃ ≤ T ≤ 130 ℃
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