Phase modifier rotor packing cooling water leakage monitoring and analyzing device and application method

Abstract

The invention discloses a phase modifier rotor packing cooling water leakage monitoring and analyzing device and an application method. The device comprises a processor module, an alarm module, a flowmonitoring module which is used for monitoring the water outflow flow of phase modifier rotor packing, and a water leakage monitoring module which is used for monitoring the water leakage of a phasemodifier excitation chamber; the processor module comprises a processor unit and a signal conversion unit; the input end of the processor unit is connected with the output end of the flow monitoring module and the output end of the water leakage monitoring module; and the output end of the processor unit and the output end of the water leakage monitoring module are connected with the control end of the alarm module through the signal conversion unit. The drainage flow of the phase modifier rotor packing is visually displayed, packing adjustment can be reminded in time, meanwhile, the leakage condition of packing cooling water is monitored in real time, and the accident handling efficiency is improved. The device and method have the advantages of simple structure, low cost and high expansibility.

Description

technical field [0001] The invention relates to a condenser monitoring device, in particular to a condenser rotor packing cooling water leakage monitoring and analysis device and an application method. Background technique [0002] With the rapid construction of UHV DC transmission projects in my country, the role of large-capacity grid-connected condensers in improving power factor and voltage support of the grid has become increasingly prominent. "Large DC transmission and strong reactive power support" has become an inevitable requirement. As a reactive power compensation device, the new-generation condenser can be regarded as a synchronous rotating power without mechanical load. It has the characteristics of large reactive power capacity and fast compensation speed. It is mainly used to absorb or emit reactive power and improve the power factor of the grid. In order to maintain the grid voltage level. At present, during the grid-connected operation of the condenser syst...

AI Technical Summary

Problems solved by technology

At present, during the grid-connected operation of the condenser system, leakage of cooling water from the rotor packing often occurs, causing the tripping fault of the rotor grounding protection action, which seriously affects the stable operation of the condenser. The cooling water outlet of the rotor packing is required to be 80ml. Between / min~400ml / min, if the control standard is exceeded, the packing must be adjusted, otherwise the cooling water may follow the rotation of the shaft and enter the excitation chamber, there is a hidden danger of "the insulation of the brush holder or the excitation busbar causes the tripping of the rotor grounding protection action" , it is particularly important to grasp the cooling water outlet status of the rotor packing and the service life of the packing in real time

[0003] At present, the main problems in the monitoring of the cooling water of the rotor packing of the new generation of condensers are as follows: (1) The inspection personnel use measuring cups to manually measure the water flow of the packing during daily inspections. (2) When the flow of water out of the rotor packing increases, the cooling water may follow the rotation of the shaft and enter the excitation chamber, resulting in water accumulation in the excitation chamber and its surroundings, and there will be "lower insulation of the brush holder or excitation bus, which will cause the rotor grounding protection action" The hidden danger of "jumping the plane"

Images