Turbine fire resistant oil dual-pump parallel regulating system with bypass regeneration

Abstract

The invention relates to a turbine fire resistant oil dual-pump parallel regulating system with bypass regeneration. Dual-pump parallel is adopted for an oil supplying part; a booster pump pumps oil from a primary oil tank through a filter, and the oil is delivered to a main pump through a cooling device and the filter, and then is delivered to an oil supplying mains and the turbine; a second series pipeline automatically starts when the oil supplying pressure is insufficient, and is provided with an oil storage tank the size of which is the same as that of the primary oil tank; at the bypass generation part, a delivery pump pumps oil, and the oil is delivered into a purifier through the filter and then flows back to the primary oil tank; the oil in the purifier passes through a heating device and a vacuum tank to be degassed and dehydrated firstly, then is delivered into a diatomite filter through an oil purification pump to be disacidified and dechlorinated, and finally is subjected to solid impurities removal through a precise sialsphere filter and flows back to the primary oil tank; a pipeline is connected with a sampling valve before flowing back to the primary oil tank, is connected in parallel with the purifier and is provided with a purifying bypass valve; and an oil complementary valve is connected with the oil storage tank, and the disqualified oil can be treated to be qualified through a regeneration system firstly. The dual-pump parallel mutual system provided by the invention is a spare type, can regenerate degradation oil on line, and has good properties of degassing, dehydration, solid impurities removal and deacidification.

Description

technical field [0001] The invention relates to the field of oil used for power equipment, in particular to a steam turbine anti-fuel regulating system. Background technique [0002] Phosphate ester anti-fuel has been widely used in the regulating system of turbogenerators above 300MW, but due to the influence of operating conditions, the oil quality of the anti-fuel will deteriorate during operation, and the deteriorated anti-fuel will cause jamming and tripping of system moving parts , Seriously threaten the safe operation of the coordination system equipment. At present, the anti-fuel oil used by many units is imported oil, which is expensive. Therefore, it is of great significance to study the oil quality regeneration after deterioration. Anti-fuel regeneration is divided into in vitro regeneration and bypass regeneration. Some of the current steam turbine anti-fuel regulation systems are equipped with a bypass regeneration system to perform online bypass regeneration ...

AI Technical Summary

Problems solved by technology

This system can not only more effectively solve the problem of degradation and anti-fuel regeneration and purification, but also the fuel supply part is a double-pump parallel type that can be used as backup for each other

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