SU603756A1 - Turbine lubricant-supply system - Google Patents

Description

one

The invention relates to heat and power industry and can be used for the mass distribution system of a turbomachine, for example, a steam or gas turbine, mainly when using fire-resistant lubricants with a relative density higher than one.

The oil supply systems of the turbomagan are known, the drain oil pipelines of which are equipped with deaerating 1S devices, and oil tanks equipped with oil cleaning MamHHajvfH with a centrifuge, heaters, press 4ntrami, vacuum devices, and xXT and exhausters, and if necessary, if there is a key. devices, nagfimer, ultrasonic, thermal and others.

In the known systems, the air-oil foam, melted on the surface of the oil, is destroyed directly in the oil tank. However, the foam contains many different contaminants (sludge, dust, rust) entrained by air bubbles as they float up (flotation effect). As the foam breaks down over time.

these feeds, the words get into pressure, are significantly carried away by the flow to the oil pump and then to the lubrication units, worsening their work, catalyzing the aging process of the oil and causing it to stir up.

The most advanced to the proposed 1 system is the known oil and gas turbomachine (containing a collector with a deaerated device and pipes for discharging foam and oil, connecting it to an oil tank, an oil cleaning machine, a device for breaking foam, and an Exhauster for discharging gases I.

In this system, the oil scraper achieves the most separation of the foam from the oil of all the reservoirs, but the foam also destroys the oil, maolo nocTopoHHHKffl, in the oil tank, again with feces, including water when using heavy oils of fire-resistant oil, when using heavy oils, including fire oil, when using heavy oils with fire-resistant oils. -Gunner richer than one.

The purpose of the invention is to improve the quality of oil cleaning.

This is achieved by the fact that the device for foam destruction is included in the foam removal pipe (from the drain collector) in front of the oil tank and connected in the upper part to the exhauster, and in the lower part to the scrubber. In this case, all the contaminants immediately after the destruction, no foams will be captured and removed from the cycle.

The figure shows the proposed oil system.

The oil supply system contains bearings. 1, connected by drain pipes to the collector 2, inside which the deaerating device is dispensed in the form of partitions 3 to intensify the release of puff of air. The collector 2 through pipe 4, for removal of clean oil and the oil collector 5 is connected to the oil tank 6 and an emergency oil pump 7. The device 8 for breaking foam, for example, of the ultrasonic type, is placed in a separate chamber, is included in the pipe 9 for removing foam from the collector 2 and is connected to the upper part of the pipeline 10 with the exhauster 11 for removal of gases, and in the lower part - the pipeline 12 with the oil tank 6 and the pipe 13 with the oil cleaning machine 14 containing a centrifuge, press - ({Schltr, vacuum apparatus and heater (in the drawing these elements are not provided). The main oil pump 15 is connected to the oil tank 6 and pipe 16 to the oil cleaning machine 14. A pipe 17 connected to the pipe 16 is empty.

The system works as follows. When a turbomachine (steam or gas turbine) is operated, the oil foamed in bearings 1 is drained into manifold 2, where, due to the presence of partitions 3, there is an intense separation of air bubbles, as well as water droplets in the case of using fire-resistant oils with a relative density greater than one. Bubbles and droplets entrain various contaminants contained in the Oil: sludge, rust, ointments, etc. Deae {oil from pipeline 4 is drained into the oil sump 5, from where it enters the oil tank 6 (during normal turbine operation) or to emergency oil pump 7 (in case of emergency situations). Pipeline Contamination Foam

9 enters the device 8 to destroy the foam, where it is destroyed by the effects of ultrasound. Air, water vapor and other gases previously contained in the bubbles through the pipeline 10 are sucked off by the exhauster 11, Watered and contaminated oil through the pipeline 13 goes to the oil cleaning machine 14, and then or to the suction to the main oil pump

15, if the oil was clean, or through the line 17 to the regenerator, if the oil was not sufficiently cleaned in the oil cleaning machine 14. If the oil on the foam does not contain any contaminants and the oil does not need to be cleaned, it is drained from the chamber of the device 8 to destroy the foam through conduit 12 immediately to the oil tank 6.

The system described allows the

It is more economical to improve the quality of oil cleaning from contamination, remove these contaminants immediately after draining the oil from the bearings, without allowing for long-term coking with the main volume of oil. When using flame retardant oils (with a relative density of more than one), the proposed lubrication system also allows water to be removed, to avoid spreading it over the surface of the oil, and in the tank and subsequent

collecting her kak li-libo devices. Removing water also increases the durability of the oil.

Claims (2)

1. Kap € Lovich B. E. Operation of rotary turbines, M., Energie,: 1975, p. 165-17O. . 55 2. Copyright certificate CXDCP № 347438, class, F 01 D 25/20, 1969. "" tf sixteen