CN115750075A

CN115750075A - Turbine self-driven lubricating system

Info

Publication number: CN115750075A
Application number: CN202211440682.9A
Authority: CN
Inventors: 彭海云; 辛鸿
Original assignee: China North Engine Research Institute Tianjin
Current assignee: China North Engine Research Institute Tianjin
Priority date: 2022-11-17
Filing date: 2022-11-17
Publication date: 2023-03-07

Abstract

The invention relates to a turbine self-driven lubricating system which comprises a bearing pipe, wherein a turbine shaft is rotatably arranged in the bearing pipe, a spiral oil guide groove is formed in the inner wall of the bearing pipe, two cavities are integrally formed at two ends of the bearing pipe, two ends of the spiral oil guide groove are respectively communicated with the two cavities, when the turbine shaft works, the turbine shaft rotates to drive a first turbine and a second turbine to rotate, when the first turbine rotates, oil in the spiral oil guide groove is pumped into the corresponding cavities and is discharged into an oil outlet pipe, when the second turbine rotates, oil in an oil inlet pipe is pumped into the corresponding cavities and is discharged into the spiral oil guide groove, when the turbine shaft rotates, the oil continuously circulates in the bearing pipe to keep effective flow, and oil stains can be filtered by a filter element when passing through the oil shell by arranging the filter element in the oil shell, so that the filtered oil enters the bearing pipe through the oil inlet pipe, and carbon deposition in the bearing pipe is prevented from being generated.

Description

Turbine self-driven lubricating system

Technical Field

The invention belongs to the technical field of fluid machinery, and particularly relates to a self-driven lubricating system of a turbine.

Background

An oil film is arranged between a turbine shaft and a bearing pipe of an existing gas turbine and similar rotating machinery, in order to prevent engine oil from forming oil sludge on the surface of the shaft and finally becoming carbon deposit, the structure in the bearing pipe is designed to be movable in the prior art, for example, an existing carbon deposit prevention turbocharger is provided, a grid-shaped guide groove is arranged in the bearing pipe, and the bearing pipe is provided with two oil outlets and two oil inlets.

Disclosure of Invention

The invention provides a self-driven lubricating system of a turbine, which solves the defects of the prior art.

In order to solve the technical problems, the invention provides a turbine self-driven lubricating system which comprises a bearing tube, wherein a turbine shaft is rotationally arranged in the bearing tube, a spiral oil guide groove is formed in the inner wall of the bearing tube, two cavities are integrally formed at two ends of the bearing tube, two ends of the spiral oil guide groove are respectively communicated with the two cavities, a first turbine and a second turbine are respectively arranged in the two cavities, and the first turbine and the second turbine are fixedly connected with the turbine shaft;

two the cavity is connected with out oil pipe and advances oil pipe respectively, the other end that goes out oil pipe and advance oil pipe and cavity connection is connected with the oil casing, be equipped with the filter core in the oil casing.

Has the advantages that: when the turbine shaft rotates, the turbine shaft drives the first turbine and the second turbine to rotate, the first turbine pumps oil in the spiral oil guide groove into the corresponding cavity and discharges the oil into the oil outlet pipe, the second turbine pumps oil in the oil inlet pipe into the corresponding cavity and discharges the oil into the spiral oil guide groove when rotating, the oil continuously circulates in the bearing pipe when the turbine shaft rotates, effective flowing is kept, oil dirt can be filtered by the filter element when passing through the oil shell by arranging the filter element in the oil shell, the filtered oil enters the bearing pipe through the oil inlet pipe, and carbon deposition in the bearing pipe is prevented.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

In the figure: the device comprises a bearing pipe 1, a turbine shaft 2, a spiral oil guide groove 3, a cavity 4, a first turbine 5, a second turbine 6, an oil seal 7, an oil outlet pipe 8, an oil inlet pipe 9, an oil shell 10, a filter element 11, an end cover 12, a compressor 13 and a power turbine 14.

Detailed Description

In order to make the objects, contents and advantages of the present invention more apparent, the following detailed description of the embodiments of the present invention is provided.

The invention provides a turbine self-driven lubricating system, which comprises a bearing pipe 1, wherein a turbine shaft 2 is rotatably arranged in the bearing pipe 1, the prior art is different from the prior art in that a spiral oil guide groove 3 is arranged on the inner wall of the bearing pipe 1, the spiral oil guide groove 3 is of a threaded structure of the inner wall of the bearing pipe 1, two cavities 4 are integrally formed at two ends of the bearing pipe 1, two ends of the spiral oil guide groove 3 are respectively communicated with the two cavities 4, a first turbine 5 and a second turbine 6 are respectively arranged in the two cavities 4, the first turbine 5, the second turbine 6 and the turbine shaft 2 are fixedly connected, and blades of the first turbine 5 and the second turbine 6 are reversely and oppositely designed;

two ends of the turbine shaft 2 are respectively connected with the compressor and the power turbine.

When the turbine shaft 2 rotates, the turbine shaft 2 drives the first turbine 5 and the second turbine 6 to rotate, the first turbine 5 pumps oil in the spiral oil guide groove 3 into the corresponding cavity 4 and discharges the oil into the oil outlet pipe 8 when rotating, the second turbine 6 pumps oil in the oil inlet pipe 9 into the corresponding cavity 4 and discharges the oil into the spiral oil guide groove 3 when rotating, and when the turbine shaft 2 rotates, the oil continuously circulates in the bearing pipe 1 and keeps flowing effectively.

Two cavitys 4 are connected with out oil pipe 8 respectively and advance oil pipe 9, go out oil pipe 8 and advance oil pipe 9 and be connected with oil casing 10 with the other end that cavity 4 is connected, are equipped with filter core 11 in the oil casing 10, through set up filter core 11 in oil casing 10 for the greasy dirt can be filtered by filter core 11 when through oil casing 1, makes the oil after being filtered prevent the production of carbon deposit in the bearing pipe 1 through advancing oil pipe 9 entering bearing pipe 1.

One end threaded connection of oil casing 10 has end cover 12, and the staff makes filter core 11 soak in oil completely through opening end cover 12 and toward the oil casing 10 in the injected oil, through opening end cover 12, takes out filter core 11, is convenient for clean or change filter core 11.

Oil seals 7 are installed at two ends of the inner wall of the bearing tube 1, are in sealing connection with the turbine shaft 2, and are arranged to prevent oil from flowing out of two ends of the bearing tube 1.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A turbine self-driven lubrication system, characterized by: including bearing pipe (1), bearing pipe (1) internal rotation is equipped with turbine shaft (2), its characterized in that: the inner wall of the bearing pipe (1) is provided with a spiral oil guide groove (3), two cavities (4) are integrally formed at two ends of the bearing pipe (1), two ends of the spiral oil guide groove (3) are respectively communicated with the two cavities (4), a first turbine (5) and a second turbine (6) are respectively arranged in the two cavities (4), and the first turbine (5) and the second turbine (6) are fixedly connected with the turbine shaft (2); two cavity (4) are connected the one end that goes out oil pipe (8) and advance oil pipe (9) respectively, the other end that goes out oil pipe (8) and advance oil pipe (9) is connected with oil casing (10), be equipped with filter core (11) in oil casing (10).

2. A turbine self-driven lubrication system according to claim 1, wherein: one end of the oil shell (10) is in threaded connection with an end cover (12).

3. A turbine self-driven lubrication system according to claim 1, wherein: and oil seals (7) are arranged at two ends of the inner wall of the bearing pipe (1).

4. A turbine self-driven lubrication system according to claim 1, wherein: the blades of the first turbine 5 and the second turbine 6 are of opposite design.

5. A turbine self-driven lubrication system according to claim 1, wherein: two ends of the turbine shaft are respectively connected with the compressor and the power turbine.

6. A turbine self-driven lubrication system according to claim 1, wherein: when the turbine shaft 2 rotates, the turbine shaft 2 drives the first turbine 5 and the second turbine 6 to rotate, the first turbine 5 pumps oil in the spiral oil guide groove 3 into the corresponding cavity 4 and discharges the oil into the oil outlet pipe 8 when rotating, the second turbine 6 pumps oil in the oil inlet pipe 9 into the corresponding cavity 4 and discharges the oil into the spiral oil guide groove 3 when rotating, and when the turbine shaft 2 rotates, the oil continuously circulates in the bearing pipe 1 and keeps flowing effectively.