CN212958785U

CN212958785U - Steam turbine oil retainer for thermal power plant

Info

Publication number: CN212958785U
Application number: CN202022091999.9U
Authority: CN
Inventors: 赵鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2021-04-13
Anticipated expiration: 2030-09-22

Abstract

The utility model discloses a steam turbine oil scraper ring for thermal power plant, the inner side surface of the oil scraper ring main body is provided with a plurality of blade grooves, the periphery of one side of the oil scraper ring main body is provided with an outer limit bulge, the inner side of the oil scraper ring main body, which is positioned at the outer limit bulge, is provided with an inner limit bulge, the outer side surface of the oil scraper ring main body is provided with two annular bulges with T-shaped cross sections, one end of the oil scraper ring main body, which is far away from the outer limit bulge, is provided with a plurality of oil ducts which are connected with a plurality of branch channels, each branch channel is respectively communicated with one blade groove, the outer seal ring main body is arranged at the outer side of the oil scraper ring main body, the annular clamping groove at the inner side surface of the outer seal ring main body is matched with the annular bulge at the outer side of the oil scraper ring main, the lubricating oil can be added or replaced conveniently, the lubricating oil does not need to be detached for maintenance, the convenience is greatly improved, and the lubricating oil is convenient to replace or maintain.

Description

Steam turbine oil retainer for thermal power plant

Technical Field

The utility model relates to a steam turbine oil retainer technical field specifically is a steam turbine oil retainer is used in thermal power plant.

Background

Traditional steam turbine oil slinger directly comprises two semi-annular oil slingers, and sealing capability is poor, uses after a period, easy oil impregnate to traditional steam turbine oil slinger refuels and trades oil and need dismantle and operate, and is very inconvenient, consequently, this problem that exists among the prior art is solved to a technique that needs a modified urgent need.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a steam turbine oil scraper ring for thermal power plant, be provided with outer seal ring main part in the outside of oil scraper ring main part, and cooperate through the annular groove of annular arch and outer seal ring main part, oil scraper ring main part one side cooperatees with the closing cap ring main part through outer spacing arch and interior spacing arch simultaneously, the sealing performance of oil scraper ring has been improved greatly, a plurality of oil ducts have been seted up to oil scraper ring main part inside, the oil duct is linked together through a plurality of branch passageways and each blade groove, be convenient for adding or change of lubricating oil, need not to pull down and maintain, convenient degree improves greatly, with the problem of proposing in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a steam turbine oil scraper ring for a thermal power plant comprises an oil scraper ring main body, a seal cover ring main body and an outer seal ring main body;

the oil deflector comprises an oil deflector main body, wherein the inner side surface of the oil deflector main body is provided with a plurality of blade grooves, the periphery of one side of the oil deflector main body is provided with an outer limiting bulge, the inner side of the oil deflector main body, which is positioned at the outer limiting bulge, is provided with an inner limiting bulge, the outer side surface of the oil deflector main body is provided with two annular bulges with T-shaped sections, one end of the oil deflector main body, which is far away from the outer limiting bulge, is provided with a plurality of oil ducts, the oil ducts are connected with a plurality of branch channels, and each;

an annular groove is formed in one side of the sealing ring main body, the annular groove formed in one side of the sealing ring main body is matched with the inner limiting bulge in one side of the oil deflector ring main body, and the outer diameter of the sealing ring main body is consistent with the inner diameter of the outer limiting bulge arranged in one side of the oil deflector ring main body;

the outer seal ring main body is arranged on the outer side of the oil retainer ring main body, two annular clamping grooves are formed in the inner side surface of the outer seal ring main body, and the annular clamping grooves in the inner side surface of the outer seal ring main body are in one-to-one correspondence with and matched with the annular protrusions on the outer side of the oil retainer ring main body.

Preferably, the utility model provides a pair of steam turbine oil scraper ring is used in thermal power plant, wherein, the internal diameter of oil scraper ring main part is unanimous with the internal diameter of closing cap ring main part, guarantees the stability of steam turbine main shaft.

Preferably, the utility model provides a pair of steam turbine oil scraper ring is used in thermal power plant, wherein, the outer end of oil duct is provided with the sealing bolt mounting hole, be provided with sealing bolt in the sealing bolt mounting hole that the oil duct outer end was established for sealed oil duct to can dismantle the back and refuel or trade oil.

Preferably, the utility model provides a pair of steam turbine oil scraper ring for thermal power plant, wherein, the oil scraper ring main part comprises two semi-annular oil scraper rings, the closing ring main part comprises two semi-annular closing ring, is convenient for install on the main shaft, a plurality of screws have evenly been seted up to the interior spacing arch of oil scraper ring main part, a plurality of mounting holes have been seted up to the closing ring main part in being located the annular groove and have run through, the mounting hole that the closing ring main part was opened links to each other through the bolt with the screw one-to-one that interior spacing arch was opened, is convenient for the closing ring main part with the oil scraper ring main part be connected and dismantle.

Preferably, the utility model provides a pair of steam turbine oil scraper ring for thermal power plant, wherein, the outer seal ring main part comprises two semi-annular outer seal rings, two the both ends of semi-annular outer seal ring are passed through the bolt and are linked to each other, are convenient for install the outside at the oil scraper ring main part.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the outer sealing ring main body is arranged outside the oil deflector ring main body, the annular protrusion is matched with the annular clamping groove of the outer sealing ring main body, and meanwhile, one side of the oil deflector ring main body is matched with the sealing cover ring main body through the outer limiting protrusion and the inner limiting protrusion, so that the sealing performance of the oil deflector ring is greatly improved.

(2) A plurality of oil ducts have been seted up to oil scraper ring main part inside, and the oil duct is linked together through a plurality of branch passageways and each blade groove, and the interpolation or the change of the lubricating oil of being convenient for need not to pull down and maintains, and the convenience improves greatly.

(3) The structure is simple, and the connection mode of the oil scraper ring main body, the seal cover ring main body and the outer seal ring main body is simple and convenient, and is convenient to replace or maintain.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of the main body of the slinger;

FIG. 3 is a front view of the main body of the oil control ring;

FIG. 4 is a schematic cross-sectional view of the closure ring body;

FIG. 5 is a front view of the closure ring body;

FIG. 6 is a schematic cross-sectional view of the main body of the outer seal ring;

fig. 7 is a front view of the main body of the outer seal ring.

In the figure: the oil slinger comprises an oil slinger main body 1, a seal cover ring main body 2, an outer seal ring main body 3, a vane groove 4, an outer limit bulge 5, an inner limit bulge 6, an annular bulge 7, an oil duct 8, a branch channel 9, a seal bolt 10, a semi-annular oil slinger 101, a semi-annular seal cover ring 201 and a semi-annular outer seal ring 301.

Detailed Description

The technical solution 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 of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention;

it should be noted that, in the description of the present invention, it is to be noted that the terms "inside", "outside", "upper", "lower", "both sides", "one end", "the other end", "left", "right", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-7, the present invention provides a technical solution: a steam turbine oil scraper ring for thermal power plants comprises an oil scraper ring main body 1, a seal cover ring main body 2 and an outer seal ring main body 3; the oil deflector comprises an oil deflector main body 1, a plurality of blade grooves 4 are formed in the surface of the inner side of the oil deflector main body 1, an outer limiting bulge 5 is arranged on the periphery of one side of the oil deflector main body 1, an inner limiting bulge 6 is arranged on the inner side, located on the outer limiting bulge 5, of the oil deflector main body 1, two annular bulges 7 with T-shaped sections are arranged on the surface of the outer side of the oil deflector main body 1, a plurality of oil ducts 8 are formed in one end, away from the outer limiting bulge 5, of the oil deflector main body 1, the oil ducts 8 are connected with a plurality of branch passages 9, each branch passage 9 is communicated with one blade groove 4, a sealing bolt 10 mounting hole is formed in the outer end of each oil duct 8, a sealing bolt 10 is arranged in the sealing bolt 10 mounting hole formed in the outer end of each oil duct 8, the oil deflector main body 1 consists of two semi-annular, the mounting holes formed on the sealing ring main body 2 correspond to the screw holes formed on the inner limiting bulges 6 one by one and are connected through bolts; an annular groove is formed in one side of the sealing ring main body 2, the annular groove formed in one side of the sealing ring main body 2 is matched with the inner limiting protrusion 6 on one side of the oil deflector ring main body 1, the outer diameter of the sealing ring main body 2 is consistent with the inner diameter of the outer limiting protrusion 5 arranged on one side of the oil deflector ring main body 1, the inner diameter of the oil deflector ring main body 1 is consistent with the inner diameter of the sealing ring main body 2, the sealing ring main body 2 is composed of two semi-annular sealing rings 201, the outer sealing ring main body 3 is arranged on the outer side of the oil deflector ring main body 1, two annular clamping grooves are formed in the inner side surface of the outer sealing ring main body 3, the annular clamping grooves in the inner side surface of the outer sealing ring main body 3 are in one-to-one correspondence with and are matched with the annular protrusions 7 on the outer side of the oil deflector ring main body 1.

The installation method and the use principle are as follows: firstly, two semi-annular outer sealing rings 301 are connected with an annular bulge 7 on the outer side of a semi-annular oil retainer ring 101 in a sliding mode through a model changing clamping groove, the semi-annular outer sealing rings 301 are arranged on the outer side of the semi-annular oil retainer ring 101, then an oil retainer ring main body 1 is installed on a main shaft of a steam turbine, blade grooves 4 of the oil retainer ring main body 1 are in one-to-one correspondence with blades on the main shaft of the steam turbine, specifically, the two semi-annular oil retainer rings 101 are connected in parallel from two sides of the main shaft to form the oil retainer ring main body 1, at the moment, the two semi-annular outer sealing rings 301 positioned on the outer side of the oil retainer ring main body 1 are connected through bolts, so that the oil retainer ring main body 1 is fixed, then the two semi-annular sealing rings 201 are sleeved on the main shaft to form a sealing ring main body 2, the sealing ring main body 2 is matched with an outer limiting bulge 5 and, the installation is completed, and if oil needs to be changed in the later period, oil can be discharged and pumped through the oil duct 8. The utility model has reasonable structure, the outer sealing ring main body 3 is arranged outside the oil deflector main body 1, and the annular bulge 7 is matched with the annular clamping groove of the outer sealing ring main body 3, and simultaneously, one side of the oil deflector main body 1 is matched with the sealing ring main body 2 through the outer limiting bulge 5 and the inner limiting bulge 6, thereby greatly improving the sealing performance of the oil deflector; the oil retainer main body 1 is internally provided with a plurality of oil ducts 8, and the oil ducts 8 are communicated with the vane grooves 4 through a plurality of branch passages 9, so that lubricating oil can be conveniently added or replaced, the oil retainer does not need to be detached for maintenance, and the convenience is greatly improved; the structure is simple, and the connection mode of the oil scraper ring main body 1, the sealing cover ring main body 2 and the outer sealing ring main body 3 is simple and convenient, and is convenient to replace or maintain.

The details of the present invention are well known to those skilled in the art.

Finally, it is to be noted that: the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified and replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims

1. The utility model provides a steam turbine oil scraper ring for thermal power plant which characterized in that: comprises an oil scraper ring main body (1), a seal cover ring main body (2) and an outer seal ring main body (3);

the oil deflector comprises an oil deflector main body (1), wherein the inner side surface of the oil deflector main body (1) is provided with a plurality of blade grooves (4), the periphery of one side of the oil deflector main body (1) is provided with an outer limiting bulge (5), the inner side of the oil deflector main body (1) positioned on the outer limiting bulge (5) is provided with an inner limiting bulge (6), the outer side surface of the oil deflector main body (1) is provided with two annular bulges (7) with T-shaped sections, one end of the oil deflector main body (1) far away from the outer limiting bulge (5) is provided with a plurality of oil ducts (8), the oil ducts (8) are connected with a plurality of branch channels (9), and each branch channel (9) is communicated with one blade groove (;

an annular groove is formed in one side of the sealing ring main body (2), the annular groove formed in one side of the sealing ring main body (2) is matched with an inner limiting bulge (6) in one side of the oil deflector ring main body (1), and the outer diameter of the sealing ring main body (2) is consistent with the inner diameter of an outer limiting bulge (5) arranged in one side of the oil deflector ring main body (1);

the outer seal ring main body (3) is arranged on the outer side of the oil retainer ring main body (1), two annular clamping grooves are formed in the inner side surface of the outer seal ring main body (3), and the annular clamping grooves in the inner side surface of the outer seal ring main body (3) are in one-to-one correspondence with the annular protrusions (7) in the outer side of the oil retainer ring main body (1) and are matched with each other.

2. The steam turbine oil slinger for thermal power plants of claim 1, wherein: the inner diameter of the oil deflector ring main body (1) is consistent with that of the sealing cover ring main body (2).

3. The steam turbine oil slinger for thermal power plants of claim 1, wherein: the outer end of the oil duct (8) is provided with a mounting hole for a sealing bolt (10), and the mounting hole for the sealing bolt (10) arranged at the outer end of the oil duct (8) is internally provided with the sealing bolt (10).

4. The steam turbine oil slinger for thermal power plants of claim 1, wherein: the oil scraper ring is characterized in that the oil scraper ring main body (1) is composed of two semi-annular oil scraper rings (101), the sealing ring main body (2) is composed of two semi-annular sealing rings (201), a plurality of screw holes are uniformly formed in the inner limiting bulge (6) of the oil scraper ring main body (1), the sealing ring main body (2) is located in the annular groove and penetrates through the annular groove to form a plurality of mounting holes, and the mounting holes formed in the sealing ring main body (2) and the screw holes formed in the inner limiting bulge (6) are in one-to-one correspondence and are connected through bolts.

5. The steam turbine oil slinger for thermal power plants of claim 1, wherein: the outer seal ring main body (3) is composed of two semi-annular outer seal rings (301), and two ends of the semi-annular outer seal rings (301) are connected through bolts.