CN214145596U

CN214145596U - Anti-pollution device for lubricating oil at output end of steam turbine

Info

Publication number: CN214145596U
Application number: CN202120111139.9U
Authority: CN
Inventors: 惠节
Original assignee: Jiangsu Maritime Institute
Current assignee: Jiangsu Maritime Institute
Priority date: 2021-01-15
Filing date: 2021-01-15
Publication date: 2021-09-07
Anticipated expiration: 2031-01-15

Abstract

The utility model discloses a steam turbine output lubricating oil anti-pollution device, the on-line screen storage device comprises a base, be provided with steam turbine rotor and bearing box on the base, steam turbine rotor includes pivot one and pivot two end fixed connection, pivot one is close to pivot two one end and sets up flutedly, the two outer protection casings that are provided with of pivot, the protection casing includes mounting base and oil collecting box, mounting base is fixed in the bearing box outer wall, steam turbine rotor and bearing box handing-over department are provided with the prevention of seepage sponge, the prevention of seepage sponge is installed in the mounting base inner wall, the one end that the bearing box was kept away from to the mounting base is provided with the external screw thread, the oil collecting box is close to mounting base one end and is provided with the internal thread hole of mutually supporting with the external screw thread, a plurality of oil collecting grooves have been seted up to oil collecting box inner wall circumferencial direction, the oil collecting box bottom is provided with the oil collecting box, the oil collecting box is linked together with the oil collecting box inner chamber, the oil collecting box end is provided with the enclosing cover. The utility model has the advantages that: effectively preventing the leakage of the lubricating oil from causing environmental pollution and saving resources.

Description

Anti-pollution device for lubricating oil at output end of steam turbine

Technical Field

The utility model relates to a steam turbine technical field specifically is a steam turbine output lubricating oil anti-pollution device.

Background

The steam turbine is also called as a steam turbine engine, and is a rotary steam power device, high-temperature high-pressure steam passes through a fixed nozzle to become accelerated airflow and then is sprayed onto blades, so that a rotor provided with blade rows rotates, and simultaneously, does work outwards.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a steam turbine output lubricating oil anti-pollution device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an anti-pollution device for lubricating oil at the output end of a steam turbine comprises a base, wherein a steam turbine rotor and a bearing box are arranged on the base, one end of the steam turbine rotor penetrates through the bearing box, the other end of the steam turbine rotor extends into a cylindrical cylinder body of a high-pressure cylinder, the steam turbine rotor comprises a first rotating shaft and a second rotating shaft, the first rotating shaft is fixedly connected with two end heads of the first rotating shaft, a groove is formed in one end, close to the second rotating shaft, of the first rotating shaft, a protective cover is arranged outside the second rotating shaft, the protective cover comprises a mounting base and an oil collecting box, the mounting base is fixed on the outer wall of the bearing box, an anti-seepage sponge is arranged at the joint of the steam turbine rotor and the bearing box, the anti-seepage sponge is mounted on the inner wall of the mounting base, an external thread is arranged at one end, far away from the bearing box, of the mounting base, an internal thread hole matched with the external thread is arranged at one end, close to the mounting base, and a plurality of oil collecting grooves are formed in the circumferential direction of the inner wall of the oil collecting box, the bottom of the oil collecting tank is provided with an oil collecting box which is communicated with the inner cavity of the oil collecting tank, and the lower opening of the oil collecting box is provided with an outer cover.

As a further aspect of the present invention: and a filter screen is arranged in the oil collecting box.

As a further aspect of the present invention: the oil collecting tank is in a frustum cone shape with an internal hollow structure, the depths of the bottoms of the oil collecting tanks are from shallow to deep, and a transverse tank communicated with all the oil collecting tanks is arranged at the deepest part of the oil collecting tanks.

As a further aspect of the present invention: the groove is of a bowl-shaped structure.

As a further aspect of the present invention: the diameter of the first rotating shaft is larger than that of the second rotating shaft.

Compared with the prior art, the beneficial effects of the utility model are that: the filter screen and the anti-seepage sponge are convenient to install and replace by arranging the installation base and connecting the oil collecting tank with the threads; when the steam turbine works, lubricating oil is squeezed outwards through a gap between a steam turbine rotor and a bearing box hole, the seepage-proof sponge collects the leaked lubricating oil for the first time, the lubricating oil flows to the outer wall of the second rotating shaft after overflowing the seepage-proof sponge too much, the lubricating oil on the outer wall is thrown out to the inner wall of the oil collecting box by the second rotating shaft rotating at a high speed through centrifugal force, the lubricating oil can be gathered in the oil collecting box, the lubricating oil slides to the transverse groove at the bottom along the oil collecting groove under the action of gravity, and finally the lubricating oil enters the oil collecting box after being filtered by the filter screen, the lubricating oil can be collected and reused by opening the outer cover, the environmental pollution caused by the leakage of the lubricating oil is effectively prevented, and resources are saved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. the device comprises a base, 2, a turbine rotor, 21, a first rotating shaft, 22, a second rotating shaft, 3, a bearing box, 4, a groove, 5, a protective cover, 51, an installation base, 52, an oil collecting tank, 6, an anti-seepage sponge, 7, external threads, 8, an internal thread hole, 9, an oil collecting groove, 10, an oil collecting box, 11, an outer cover, 12, a filter screen, 13 and a transverse groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, in an embodiment of the present invention, an anti-pollution device for lubricating oil at an output end of a steam turbine includes a base 1, a steam turbine rotor 2 and a bearing housing 3 are disposed on the base 1, one end of the steam turbine rotor 2 passes through the bearing housing 3, and the other end of the steam turbine rotor extends into a cylindrical cylinder body of a high pressure cylinder, the steam turbine rotor 2 includes a first rotating shaft 21 and a second rotating shaft 22, the diameter of the first rotating shaft 21 is greater than that of the second rotating shaft 22, the first rotating shaft 21 is fixedly connected to an end of the second rotating shaft 22, a groove 4 is formed at one end of the first rotating shaft 21 close to the second rotating shaft 22, the groove 4 is in a bowl-shaped structure, the bowl-shaped structure can better prevent lubricating oil from overflowing, a protective cover 5 is disposed outside the second rotating shaft 22, the protective cover 5 includes a mounting base 51 and an oil collecting tank 52, the mounting base 51 is fixed on an outer wall of the bearing housing 3, and an impermeable sponge 6 is disposed at a junction between the steam turbine rotor 2 and the bearing housing 3, the anti-seepage sponge 6 is arranged on the inner wall of the mounting base 51, an external thread 7 is arranged at one end of the mounting base 51 far away from the bearing box 3, an internal thread hole 8 matched with the external thread 7 is arranged at one end of the oil collecting box 52 close to the mounting base 51, a plurality of oil collecting grooves 9 are arranged in the circumferential direction of the inner wall of the oil collecting box 52, the oil collecting box 52 is in a cone frustum shape with an internal hollow structure, the depths of the bottoms of the oil collecting grooves 9 are from shallow to deep, so that the overflowed lubricating oil can be collected in the deepest part of the bottom through the oil collecting groove 9, a transverse groove 13 communicated with all the oil collecting grooves 9 is arranged in the deepest part of the oil collecting groove 9, an oil collecting box 10 is arranged at the bottom of the oil collecting box 52, the oil collecting box 10 is communicated with the inner cavity of the oil collecting box 52, a filter screen 12 is arranged in the oil collecting box 10 to filter some impurities, so that the collected lubricating oil can be repeatedly utilized, and the filter screen 12 can be conveniently and quickly replaced, and the lower opening of the oil collecting box 10 is provided with an outer cover 11.

When the turbine is used, the mounting base 51 and the oil collecting tank 52 are separated by rotating, the filter screen 12 is mounted in the oil collecting tank 10, the anti-seepage sponge 6 is mounted at the joint of the mounting base 51 and the bearing tank 3, then the mounting base 51 and the oil collecting tank 52 are connected in a rotating manner, the oil collecting tank 9 is positioned at the deepest part and at the bottommost part after fastening by arranging the external threads 7 and the internal thread holes 8, when the turbine works, lubricating oil is squeezed outwards through a gap between the holes of the turbine rotor 2 and the bearing tank 3, the anti-seepage sponge 6 collects the leaked lubricating oil for the first time, when the lubricating oil excessively overflows the anti-seepage sponge 6, the lubricating oil flows to the outer wall of the rotating shaft two 22, the lubricating oil on the outer wall is thrown out to the inner wall of the oil collecting tank 52 by the centrifugal force of the rotating shaft two 22 at high speed, the lubricating oil is collected in the oil collecting tank 9 and slides to the transverse groove 13 at the bottom along the oil collecting tank 9 under the action of gravity, finally, the lubricating oil enters the oil collecting box 10 after being filtered by the filter screen 12, and the lubricating oil can be collected and reused by opening the outer cover 11.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a turbine output lubricating oil anti-pollution device, includes base (1), be provided with turbine rotor (2) and bearing box (3) on base (1), bearing box (3) are passed to turbine rotor (2) one end, and the other end stretches into high-pressure cylinder's tube-shape cylinder body, its characterized in that: the turbine rotor (2) comprises a first rotating shaft (21) and a second rotating shaft (22), the first rotating shaft (21) is fixedly connected with the end of the second rotating shaft (22), a groove (4) is formed in one end, close to the second rotating shaft (22), of the first rotating shaft (21), a protective cover (5) is arranged outside the second rotating shaft (22), the protective cover (5) comprises a mounting base (51) and an oil collecting box (52), the mounting base (51) is fixed on the outer wall of the bearing box (3), an anti-seepage sponge (6) is arranged at the joint of the turbine rotor (2) and the bearing box (3), the anti-seepage sponge (6) is mounted on the inner wall of the mounting base (51), an external thread (7) is arranged at one end, far away from the bearing box (3), of the mounting base (51), an internal thread hole (8) matched with the external thread (7) is arranged at one end, close to the mounting base (51), of the oil collecting box (52), the oil collecting device is characterized in that a plurality of oil collecting grooves (9) are formed in the circumferential direction of the inner wall of the oil collecting tank (52), an oil collecting box (10) is arranged at the bottom of the oil collecting tank (52), the oil collecting box (10) is communicated with the inner cavity of the oil collecting tank (52), and an outer cover (11) is arranged at the lower opening of the oil collecting box (10).

2. The turbine output end lubricating oil contamination prevention device according to claim 1, characterized in that: a filter screen (12) is arranged in the oil collecting box (10).

3. The turbine output end lubricating oil contamination prevention device according to claim 1, characterized in that: the oil collecting tank (52) is in a conical frustum shape with an internal hollow structure, the depths of the bottoms of the oil collecting tanks (9) are from shallow to deep, and a transverse tank (13) communicated with all the oil collecting tanks (9) is arranged in the deepest part of each oil collecting tank (9).

4. The turbine output end lubricating oil contamination prevention device according to claim 1, characterized in that: the groove (4) is of a bowl-shaped structure.

5. The turbine output end lubricating oil contamination prevention device according to claim 1, characterized in that: the diameter of the first rotating shaft (21) is larger than that of the second rotating shaft (22).