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Top-axis turbine oil system What is the role of(2)

Since the 1960s, China SY series piston pump is widely used in the roof of the plant shaft oil system, the commitment to the important role of the equipment, although there plunger parts wear, defects such as leaking seals, but manufacturers can Guarantee the quality of the renovation, basically meet the needs of a large group of top-axis turbine generator needs. With the development of market economy, the series of piston pump manufacturer miscellaneous, product failure rate is high and the quality of the renovation can not be guaranteed, thus superior performance of the PVH Automatic variable piston pump can be quickly occupied the top shaft pumps domestic market, The reason for this is the period used in the design of pump failure rate is zero, reliable performance, leakage, cost performance and reasonable. Many plants have transform, and more are brewing plant transformation. Top Yijuntuqi new devices by experts from the design of new top oil system to meet the axis of the 330,000 kilowatt generating units need, the new device from the roof of the following major components: the variable piston pump Group 2 × 100%, relief valve, Lvyou Qi block, one-way throttle groups. Its main features are: use of import variable piston pump, redundant configuration, to changes in flow, reducing the pressure fluctuations; additional double-block Lvyou Qi, improve access to the oil pump bearings and cleanliness; imported throttle valve, overflow Oil valves, and other key components improve system reliability of the system with an integrated structure to take over for aesthetics. How it works: The device mainly by the variable-axis Cypriot pump (Q = 100L/min, P = 14MPa (140kgf/cm2)), motor Y200L-4B35 (N = 30 kW), a one-way throttle (Q = 40L/min , P = 32MPa (G) (320kgf/cm2)), oil spill valve [Q = 40L/min, P = 4 ~ 16MPa (G) (140kgf/cm2)), Lvyou Qi (Q = 100L/min), Shunt, flanged joints and a certain number of connecting pipeline, and other components. When the crew before the launch, from the mother of lubricating oil by Lvyou Qi variables into the shaft Cypriot pump to increase pressure to 14 MPa (140kgf/cm2), re-entering the shunt, a one-way throttle, entered the final Bearing. By regulating one-way throttle valve and relief valve that controls access to the bearings and oil pressure so that the shaft from the roof height within reasonable limits (in height from the top 0.05 ~ 0.10 mm, from the oil pressure in the top 10 ~ 14MPa (100 ~ 140kgf/cm2)). When the pump is activated from the roof, and the shaft has not been an instant from the top, top oil from the pressure will increase instantaneous. But the top-axis, the row after the smooth flow of oil, oil pressure dropped and maintained at a stable value, then the pressure is normal pressure from the top. New device from the roof of the characteristics of this new type of device from the roof of the characteristics: high-pressure pumps from the top elevation should be slightly lower than the installation of vapor into the bearing lubrication system in charge of oil (oil-cold after the close of the functioning of the level of charge), so that during the downtime When in charge of emptying oil from the top of the pump oil into the pipeline and Lvyou Qi still full of oil, to ensure that the pumps start working again without deflation. Top oil pump and tubing from the new road system installed after the repair or demolition of the first to be fully activated-net Lvyou Qi and pumps in the air, not otherwise a bubble containing oil or oil, from top to perform well. After the installation of power plants, should be carried out from the main roof test, according to the requirements of the top high degree of adjustment from one-way opening of the throttle valve, and record home pressure and a high degree bearing from the top, from top oil.

12:01 AM - May. 31, 2008 - comments {0} - post comment

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