RU2742591C1 - Lubricating system of gas compressor unit with stationary gas turbine engine - Google Patents

Abstract

FIELD: machine building.

SUBSTANCE: invention can be used in gas pumping units. Lubrication system of gas transfer unit with stationary gas-turbine engine (5) contains oil tank (1) and connected to it blowing and drain pipelines and standard dynamic oil separator (7). In order to increase degree of oil purification oil tank (1) ventilation pipeline is fitted with oil-filter trap (8). Filter-oil trap (8) contains filter-cartridges intended for oil trapping. At inlet of oil-and-air mixture through inlet pipeline into housing of filter-oil trap and further at passing through self-cleaning filter-cartridges, separated oil enters oil tank (1) of gas transfer unit with gas turbine engine (5), and cleaned air through discharge pipeline will enter atmosphere. Filter-oil trap (8) creates resistance to oil-air mixture flow, which exceeds natural draft of standard ventilation system. Filter-oil trap (8) is fitted with ejector. Air to ejector is supplied from gas transfer unit or from fan (12).

EFFECT: technical result consists in elimination of oil emissions from oil tank of gas transfer unit and reduction of turbine oil consumption.

1 cl, 3 dwg

Description

The invention relates to the oil and gas, power and engineering industries.

The main purpose of the invention is to eliminate oil emissions from the oil tank of a gas compressor unit with a gas turbine engine, reduce the consumption of turbine oil, increase the period of trouble-free operation of the gas compressor unit and reduce the level of environmental pollution.

The technical result is the elimination of oil emissions from the oil tank of a gas compressor unit with a gas turbine engine, a reduction in the consumption of turbine oil, an increase in the period of trouble-free operation of the gas compressor unit and a decrease in the level of environmental pollution due to the use of an oil catcher with filter cartridges by cleaning the oil-air mixture.

The technical result is achieved by the fact that the oil-air mixture is purified through an oil catcher with filter cartridges, the separated oil is returned to the oil tank, and the purified air is discharged into the atmosphere.

Known adopted as a prototype lubrication system for a stationary gas turbine engine (patent No. 1241785 dated November 27, 1996), containing an oil tank and connected to it pumping and pumping lines, the first of which is connected to the engine lubrication units, and the second one is equipped with a prompter and a dynamic oil separator , characterized in that in order to increase the degree of oil purification, it is equipped with a static oil catcher installed above the oil tank, having in the lower part pipes for draining the oil and intake of the oil-air mixture, connected to the oil tank, as well as inlet and outlet pipes connected, respectively, with the outlet of the breather through the air and with an atmosphere.

A significant disadvantage of this system is that the oil-air mixture moves inside the static oil catcher at high speed and has a high temperature. As a result, it is impossible to completely separate the oil from the oil-air mixture due to static separation and it is impossible to condense on the static oil separator screen. During the operation of the gas pumping units, oiling of the cover of the gas pumping unit was recorded and traces of the presence of turbine oil in the filter elements of the integrated air cleaning device were found. The entry of turbine oil into the surrounding atmosphere is due to the ineffective operation of the static oil catcher.

Oil emissions negatively affect:

on the efficiency of the gas compressor unit;

the reliability of the gas compressor unit;

on the ecological situation in the area of the compressor station.

Turbine oil, getting into the integrated air cleaning device of the gas compressor unit, contaminates the filter elements of the integrated air cleaning device, sticks to the blades of the axial compressor, and the combustion of turbine oil vapors in the flow path of the unit leads to the burnout of chromium in the alloys of the turbine blade apparatus and to the formation of premature defects. Thus, the reliability of the gas compressor unit is reduced.

Turbine oil entering the atmosphere by the movement of air masses is transported over long distances. Condensing, the oil gets into the soil and groundwater, thereby polluting natural components (air, soil and water), destroying the ecosystem of the adjacent territories.

The set goal and the specified technical result is achieved by the fact that the lubrication system of the gas pumping unit with a stationary gas turbine engine, containing an oil tank and connected to it pumping and drain pipelines, a standard dynamic oil separator, in order to increase the degree of oil purification, an oil separator filter is installed in the ventilation pipeline of the oil tank. contains filter cartridges designed to trap oil; when the oil-air mixture enters through the inlet pipeline into the body of the oil-catcher filter, and then, when passing through the self-cleaning filter cartridges, the separated oil will enter the oil tank of the gas-pumping unit with a gas turbine engine, and the purified air will be released into the atmosphere through the exhaust pipeline; The oil catcher filter can create resistance to the flow of the oil-air mixture that exceeds the natural draft of the standard ventilation system, while an ejector can be installed after the oil catcher filter, air can be supplied to the ejector from a gas-pumping unit or from a fan.

The essence of the invention is illustrated by drawings, where FIG. 1 shows a general diagram of the lubrication system of a gas compressor unit with a stationary gas turbine engine, which consists of:

1. Oil tank;

2. Main lubrication pump;

3. Oil air cooler;

4. Block of oil filters;

5. Gas turbine engine;

6. Centrifugal blower;

7. Dynamic oil separator;

8. Oil separator filter.

Let's consider the operation of this system.

After starting the gas pumping unit from the oil tank (1), the main lubrication pump (2) supplies oil to the oil supply lines, while the oil is cooled in an air cooler (3), it is cleaned in filters (4), the purified oil goes to the lubrication points of the gas turbine engine (5) and a centrifugal blower (6), then, through the drain pipelines, the oil is discharged into the oil tank, and in parallel with this, air from the labyrinth seals of the bearings of the gas turbine engine is discharged into the oil tank, where, as a result of the mixing of oil and air, an abundant formation of an oil-air mixture occurs, from The oil-air mixture enters for cleaning sequentially into the standard dynamic oil separator (7) and the additionally installed oil separator filter (8); as a result, after cleaning, the oil is removed to the oil tank, and the purified air is released into the atmosphere.

FIG. 2 shows a diagram of the installation of an oil separator filter as part of a gas compressor unit and includes a drawing, which consists of:

1. Oil tank;

5. Gas turbine engine;

6. Centrifugal blower;

7. Dynamic oil separator;

8. Oil catch filter;

9. Bypass line with damper;

10. Supply pipeline;

11. Outlet pipeline;

12. Fan with damper;

13. Ejector;

14. Oil lines.

After starting up and warming up the gas pumping unit as a part of the gas turbine engine (5) and the centrifugal blower (6), the air-oil mixture from the oil tank of the gas pumping unit (1) enters the dynamic oil separator (7), then through the supply line (10) it is fed to the oil separator filter (8 ), the cleaned air is discharged into the atmosphere through the outlet pipeline (11), the separated oil flows through the oil line (14) into the oil tank of the gas-compressor unit. If necessary, the bypass line (9) is used to bypass the oil-air mixture to the atmosphere, bypassing the oil separator filter.

A fan with a damper (12) and an ejector (13) are used to create additional draft in the ventilation system of the oil tank and are installed if necessary.

FIG. 3 shows a diagram of the design of the oil catcher filter and includes a drawing, which consists of:

15. Housings;

16. Inlet branch pipe;

17. Cassettes (partitions);

18. Filter cartridges;

19. Grids;

20. Outlet pipes;

21. Outlet branch pipe;

22. Water seal;

23. Drain branch pipe;

which together forms an oil catch filter.

The oil catch filter works as follows.

The air-oil mixture enters the cavity A of the housing (15) through the inlet pipe (16), twists and, moving in a spiral, enters through the cassette windows (partitions) (17) into the filter cartridges (18). The cassette windows (partitions) are covered with nets (19), and large drops of oil condense on the nets. In the filter cartridges, passing through the filter material, the oil-air mixture is cleaned of oil and enters the cavity B, the purified air through the outlet pipe (20), the outlet pipe (21) goes into the atmosphere, the separated oil through the holes in the cassette (partition) and the water seal (22) flows down to the bottom of the oil filter housing and through the drain pipe (23) is drained into the oil tank of the gas pumping unit.

Thus, the elimination of oil emissions due to the use of an oil catcher with filter cartridges makes it possible to increase the efficiency of work, increase the period of trouble-free operation of the gas compressor unit, and reduce the level of environmental pollution.

Claims (1)

The lubrication system of a gas compressor unit with a stationary gas turbine engine, containing an oil tank and connected to it supply and drain pipelines, a standard dynamic oil separator, characterized in that an oil separator filter is installed in the oil tank ventilation pipeline, which contains filter cartridges designed to trap oil; when the oil-air mixture enters the oil-catcher filter housing through the inlet pipeline and then, when passing through the self-cleaning filter cartridges, the separated oil will enter the oil tank of the gas-pumping unit with a gas turbine engine, and the purified air will be released into the atmosphere through the exhaust pipeline; The oil catcher filter can create resistance to the flow of the oil-air mixture that exceeds the natural draft of the standard ventilation system, while an ejector can be installed after the oil catcher filter, air can be supplied to the ejector from a gas-pumping unit or from a fan.

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