CN219953500U

CN219953500U - Lubricating oil flushing system for inner cavity of gas turbine workpiece

Info

Publication number: CN219953500U
Application number: CN202321575228.4U
Authority: CN
Inventors: 孙涛; 李辉全; 孙鸿翔
Original assignee: Qingdao Zhongke Guosheng Power Technology Co ltd
Current assignee: Qingdao Zhongke Guosheng Power Technology Co ltd
Priority date: 2023-06-19
Filing date: 2023-06-19
Publication date: 2023-11-03
Anticipated expiration: 2033-06-19

Abstract

The utility model belongs to the technical field of cleaning of gas turbine workpieces, and particularly relates to a lubricating oil flushing system for an inner cavity of a gas turbine workpiece. The utility model can control the temperature, pressure and flow of the lubricating oil flushing, thereby ensuring better flushing effect on the inner cavity of the gas turbine workpiece.

Description

Lubricating oil flushing system for inner cavity of gas turbine workpiece

Technical Field

The utility model relates to a lubricating oil flushing system for an inner cavity of a gas turbine workpiece, and belongs to the technical field of gas turbine workpiece cleaning.

Background

In the assembly process of the gas turbine, the components such as the frame, the gear box and the like require high cleanliness of the inner cavity so as to ensure the stable operation of the rotating components. Currently, the workpiece inner cavity of the gas turbine is usually flushed by means of lubricating oil flushing. The utility model patent with the Chinese patent number of CN201821408458.0 discloses a flushing device for a lubricating oil system of a gas turbine, which can flush the inner cavity of a workpiece of the gas turbine through lubricating oil under certain pressure and flow, but the flushing temperature of the lubricating oil system cannot be controlled, so that a better flushing effect cannot be achieved.

Disclosure of Invention

According to the defects in the prior art, the technical problems to be solved by the utility model are as follows: a gas turbine workpiece inner cavity lubricating oil flushing system capable of controlling lubricating oil flushing temperature, pressure and flow is provided.

The utility model discloses a gas turbine workpiece inner cavity lubricating oil flushing system, which comprises an oil tank, wherein a heater and an oil tank temperature sensor are arranged in the oil tank, the oil tank is connected with a workpiece through an oil supply pipeline, the workpiece is connected with an oil return tank through a first oil return pipeline or a second oil return pipeline to form a closed loop, the oil supply pipeline is connected with an oil supply pump set, an electrohydraulic reversing valve, an oil supply filtering assembly, a proportional overflow valve, a flow sensor, an oil supply pressure sensor and an oil supply temperature sensor, the electrohydraulic reversing valve is connected with a heat exchanger, the electrohydraulic reversing valve and the proportional overflow valve are connected with the oil tank through overflow pipelines, the first oil return pipeline is connected with a filter tank, and the second oil return pipeline is connected with the oil return pump set and the oil return filtering assembly.

Preferably, the air breather valve is mounted on the oil tank.

Preferably, a liquid level meter is arranged in the oil tank.

Preferably, the oil tank is connected with a drain valve.

Preferably, the oil supply pipeline is connected with a one-way valve positioned between the proportional overflow valve and the flow sensor.

Preferably, the oil supply pipeline is connected with a pressure gauge.

Preferably, the oil return filter assembly comprises a primary oil return filter and a secondary oil return filter, and the primary oil return filter and the secondary oil return filter are respectively positioned at the liquid inlet end and the liquid outlet end of the oil return pump set.

Preferably, the oil supply filter assembly comprises a primary oil supply filter and a secondary oil supply filter which are sequentially connected.

Preferably, the oil supply pipeline is connected with a primary filter positioned at the front side of the oil supply pump group.

Compared with the prior art, the utility model has the following beneficial effects:

the lubricating oil flushing system for the inner cavity of the gas turbine workpiece can control the temperature, the pressure and the flow of lubricating oil flushing, so that a good flushing effect on the inner cavity of the gas turbine workpiece is ensured.

Drawings

Fig. 1 is a hydraulic schematic of the present utility model.

In the figure: 1. an oil tank; 2. a primary filter; 3. a heater; 4. a liquid level gauge; 5. an oil tank temperature sensor; 6. an air breathing valve; 7. an overflow line; 8. an oil supply pump group; 9. a pressure gauge; 10. an electrohydraulic reversing valve; 11. a heat exchanger; 12. a primary oil supply filter; 13. a secondary oil supply filter; 14. a proportional overflow valve; 15. a one-way valve; 16. a flow sensor; 17. an oil supply line; 18. a supply oil pressure sensor; 19. an oil supply temperature sensor; 20. a workpiece; 21. a first-stage oil return filter; 22. a filter tank; 23. an oil return pump group; 24. a second-stage oil return filter; 25. a first oil return line; 26. the second oil return pipeline; 27. a blow-down valve.

Detailed Description

Embodiments of the utility model are further described below with reference to the accompanying drawings:

example 1:

as shown in fig. 1, the lubricating oil flushing system for the inner cavity of the workpiece of the gas turbine comprises an oil tank 1, wherein a heater 3 and an oil tank temperature sensor 5 are arranged in the oil tank 1, the oil tank 1 is connected with a workpiece 20 through an oil supply pipeline 17, the workpiece 20 is connected with the oil tank 1 through a first oil return pipeline 25 or a second oil return pipeline 26 to form a closed loop, an oil supply pump set 8, an electrohydraulic reversing valve 10, an oil supply filtering component, a proportional overflow valve 14, a flow sensor 16, an oil supply pressure sensor 18 and an oil supply temperature sensor 19 are connected on the oil supply pipeline 17, the electrohydraulic reversing valve 10 is connected with a heat exchanger 11, the electrohydraulic reversing valve 10 and the proportional overflow valve 14 are connected with the oil tank 1 through an overflow pipeline 7, a filtering tank 22 is connected on the first oil return pipeline 25, and an oil return pump set 23 and an oil return filtering component are connected on the second oil return pipeline 26.

When the oil tank is used, the workpiece 20 is connected with the first oil return pipeline 25 in advance, lubricating oil in the oil tank 1 enters the workpiece 20 through the oil supply pipeline 17 under the action of the oil supply pump set 8 to wash the inner cavity of the workpiece 20, the washed oil returns to the oil tank 1 through the filter tank 22 and the first oil return pipeline 25 to circulate, whether the workpiece 20 is washed qualified can be determined by observing the condition of the oil in the filter tank 22, after the workpiece 20 is washed qualified, the oil supply pump set 8 is closed, then the workpiece 20 is connected with the second oil return pipeline 26, the oil return pump set 23 is started, and the oil return pump set 23 can send the oil into the oil tank 1 through the second oil return pipeline 26; the heater 3, the oil tank temperature sensor 5 and the heat exchanger 11 are linked mutually for control washes required temperature, and fuel feeding temperature sensor 19 is used for monitoring the washing temperature, and proportional overflow valve 14, flow sensor 16 and fuel feeding pressure sensor 18 are linked mutually, are used for controlling and wash required flow and pressure value, and fuel feeding filter assembly is used for filtering fluid, so as to guarantee that the flushing fluid reaches qualified cleanliness factor, and the oil return filter assembly is used for filtering fluid, prevents the lubricating oil in the oil tank 1 of fluid pollution, thereby guarantees the cyclic utilization of lubricating oil.

Example 2:

as shown in fig. 1, on the basis of example 1,

preferably, the air breather valve 6 is arranged on the oil tank 1, so that the pressure inside and outside the oil tank 1 can be balanced;

preferably, the liquid level meter 4 is arranged in the oil tank 1, so that the quantity of lubricating oil in the oil tank 1 can be monitored to timely supplement the lubricating oil;

preferably, the oil tank 1 is connected with a drain valve 27, so that the oil tank 1 can be cleaned regularly;

preferably, the oil supply pipeline 17 is connected with a one-way valve 15 positioned between the proportional overflow valve 14 and the flow sensor 16, so that the backflow of oil can be prevented, and a protection effect is achieved;

preferably, the oil supply pipeline 17 is connected with a pressure gauge 9, so that the oil supply pressure can be monitored;

preferably, the oil return filter assembly comprises a primary oil return filter 21 and a secondary oil return filter 24, wherein the primary oil return filter 21 and the secondary oil return filter 24 are respectively positioned at a liquid inlet end and a liquid outlet end of the oil return pump set 23, the primary oil return filter 21 can perform primary filtration on oil, the oil return pump set 23 is prevented from being blocked by large particles, and the secondary oil return filter 24 can perform precise filtration on the oil so as to ensure the recycling of the oil;

preferably, the oil supply filter assembly comprises a primary oil supply filter 12 and a secondary oil supply filter 13 which are sequentially connected, and oil is subjected to double-layer filtration through the primary oil supply filter 12 and the secondary oil supply filter 13, so that the cleanliness of flushing fluid is ensured;

preferably, the oil supply pipeline 17 is connected with a primary filter 2 positioned at the front side of the oil supply pump set 8, and the primary filter 2 can perform preliminary filtration on oil to prevent large particles from blocking the oil supply pump set 8.

Claims

1. A gas turbine work piece inner chamber lubricating oil rinse-system, its characterized in that: including oil tank (1), install heater (3) and oil tank temperature sensor (5) in oil tank (1), oil tank (1) is connected with work piece (20) through oil supply pipeline (17), work piece (20) are connected oil return tank (1) through first oil return pipeline (25) or second oil return pipeline (26) and are formed the closed loop, be connected with oil feed pump group (8) on oil supply pipeline (17), electrohydraulic switching-over valve (10), oil supply filter unit, proportional overflow valve (14), flow sensor (16), oil supply pressure sensor (18) and oil supply temperature sensor (19), electrohydraulic switching-over valve (10) are connected with heat exchanger (11), oil tank (1) is connected through overflow pipeline (7) with proportional overflow valve (14) electrohydraulic switching-over valve (10), be connected with filter tank (22) on first oil return pipeline (25), be connected with oil return pump group (23) and oil return filter unit on second oil return pipeline (26).

2. The gas turbine work piece inner cavity lubricating oil flushing system of claim 1, wherein: an air breather valve (6) is arranged on the oil tank (1).

3. The gas turbine work piece inner cavity lubricating oil flushing system of claim 1, wherein: the oil tank (1) is internally provided with a liquid level meter (4).

4. The gas turbine work piece inner cavity lubricating oil flushing system of claim 1, wherein: the oil tank (1) is connected with a drain valve (27).

5. The gas turbine work piece inner cavity lubricating oil flushing system of claim 1, wherein: the oil supply pipeline (17) is connected with a one-way valve (15) positioned between the proportional overflow valve (14) and the flow sensor (16).

6. The gas turbine work piece inner cavity lubricating oil flushing system of claim 1, wherein: the oil supply pipeline (17) is connected with a pressure gauge (9).

7. The gas turbine work piece inner cavity lubricating oil flushing system of claim 1, wherein: the oil return filter assembly comprises a primary oil return filter (21) and a secondary oil return filter (24), and the primary oil return filter (21) and the secondary oil return filter (24) are respectively positioned at the liquid inlet end and the liquid outlet end of the oil return pump set (23).

8. The gas turbine work piece inner cavity lubricating oil flushing system according to any one of claims 1 to 7, wherein: the oil supply filter assembly comprises a primary oil supply filter (12) and a secondary oil supply filter (13) which are sequentially connected.

9. The gas turbine work piece inner cavity oil flushing system of claim 8, wherein: the oil supply pipeline (17) is connected with a primary filter (2) positioned at the front side of the oil supply pump set (8).