Introduction of JLDTN Vertical Multi-stage Cylinder Bag Condensation Pump

 Company News     |      2019/1/20 1:57:42

Introduction of JLDTN Vertical Multi-stage Cylinder Bag Condensation Pump



  Through the new design of the hydraulic model of the first stage impeller and inducer with high cavitation performance and efficiency, the structure of the suction device, the axial force balance device and the shaft encapsulation device of the 300 JLDTN-200 vertical multi-stage bag condensation pump is innovatively designed. The necessary cavitation margin is reduced to 0.91 meters, which improves the efficiency and operational reliability of the pump. The height of the cylinder bag of the pump is shortened, and the manufacturing cost and installation cost are reduced. The pump has the characteristics of intuitive and convenient control of axial force balance, reliable and effective mechanical seal and long service life of thrust bearing. Model 300JLDTN-200 vertical multi-stage bag condensation pump is a highly efficient and energy-saving vertical multi-stage condensation pump product developed by our company independently according to the market demand. It has the remarkable characteristics of high efficiency, good cavitation performance, advanced structure, long service life and convenient installation and maintenance. It is suitable for conveying condensed water in power plants and other liquids similar to condensed water.

  Bag-type condensation pump is used for pumping condensate of steam turbine in thermal power unit. The requirement of 0/necessary cavitation allowance is very low for bag-type condensation pump because the suction port of bag-type condensation pump is under the vacuum suction pressure of condenser.

JLDTN型立式多级筒袋式小机凝结水泵(多级筒袋式冷凝泵)

  Vertical multi-stage bag condensation pumps produced in China have poor cavitation performance (necessary cavitation allowance NPSH, high value) and low efficiency. There are mainly JLDTN vertical multi-stage bag condensation pumps produced by Sulzer Company in Switzerland abroad, but their cavitation performance is not ideal. The main indexes for evaluating the advantages and disadvantages of vertical multi-stage bag condensation pump are necessary cavitation allowance, efficiency, reliability of operation, service life, sealing effect and convenience of installation and maintenance, etc. The actual operation of 300JLDTN-200 vertical multi-stage bag condensation pump shows that the pump has stable performance, good reliability, long service life, advanced and reasonable structure, convenient maintenance, low vibration, low noise, good appearance quality, low product price, and can fully meet the requirements of power plant process.