CN216440098U

CN216440098U - Oil purification device for steam turbine

Info

Publication number: CN216440098U
Application number: CN202123196482.7U
Authority: CN
Inventors: 赵辉; 王开宇; 刘石林
Original assignee: Daqing Gaoxin Boyuan Thermal Power Co ltd
Current assignee: Daqing Gaoxin Boyuan Thermal Power Co ltd
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-05-06
Anticipated expiration: 2031-12-20

Abstract

The utility model belongs to the technical field of steam turbines, and particularly discloses an oil purification device for a steam turbine, which comprises a purification box, wherein a through hole is formed in the center of the top of the purification box, a bearing penetrates through the through hole, an oil inlet pipe penetrates through the inside of the bearing, the inside of the oil inlet pipe is divided into two oil inlet cavities through a partition plate, a bearing plate is fixedly connected into each oil inlet cavity, a filtering mechanism is arranged at the top of each bearing plate, each filtering mechanism comprises a coarse filtering screen plate, a fine filtering screen plate is connected to the lower part of each coarse filtering screen plate through a connecting piece, a bump is fixedly connected to the bottom of each fine filtering screen plate, and the bump is clamped with a groove formed in the top of the corresponding bearing plate; the top of the coarse filter screen plate is fixedly connected with a lifting rod; the outer side wall of the oil inlet pipe is fixedly connected with a fixing plate, a small hole is formed in the fixing plate, and a positioning screw rod is movably arranged in the small hole; the utility model is convenient for cleaning the filtering mechanism and has high purification efficiency.

Description

Oil purification device for steam turbine

Technical Field

The utility model relates to the technical field of steam turbines, in particular to an oil purification device for a steam turbine.

Background

The steam turbine is the main equipment of modern thermal power plant, also is used in metallurgical industry, chemical industry, naval vessel power device, and turbine oil is the petroleum refining product that plays important effects such as lubrication, speed governing sealing and heat dissipation cooling in generating set lubricating system, and the quality of oil directly determines the safe operating conditions of unit, inevitably can take place water and steam and invade oil system in the steam turbine operation process, and this not only can lead to oil emulsification and degradation, still can further accelerate the metal part wearing and tearing, seriously influences the unit safe operation, so need use oil purifier.

However, the conventional oil purifying apparatus is inconvenient to clean the filter screen after being used for a certain period of time, and the cleaning operation must be stopped during cleaning, which affects the purification efficiency.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to an oil purification apparatus for a steam turbine, which solves the above problems of the related art.

In order to achieve the purpose, the utility model provides the following technical scheme: a steam turbine oil purification device comprises a purification box, wherein a through hole is formed in the center of the top of the purification box, a bearing penetrates through the through hole, an oil inlet pipe penetrates through the bearing, the inside of the oil inlet pipe is divided into two oil inlet cavities through a partition plate, a bearing plate is fixedly connected in each oil inlet cavity, a filtering mechanism is arranged at the top of the bearing plate and comprises a coarse filter screen plate, a fine filter screen plate is connected below the coarse filter screen plate through a connecting piece, a lug is fixedly connected at the bottom of the fine filter screen plate, and the lug is clamped with a groove formed in the top of the bearing plate; the top of the coarse filter screen plate is fixedly connected with a lifting rod; the outer side wall of the oil inlet pipe is fixedly connected with a fixing plate, a small hole is formed in the fixing plate, and a positioning screw rod is movably arranged in the small hole.

Preferably, the cross sections of the oil inlet cavity and the bearing plate are of D-shaped structures, and the upper side and the lower side of the bearing plate are provided with D-shaped grooves which are communicated with each other.

Preferably, the number of the connecting pieces is two, and the two connecting pieces are arranged correspondingly left and right; the connecting piece comprises a threaded pipe, the top end of the threaded pipe is fixedly connected with the bottom of the coarse filter screen plate, and the bottom end of the threaded pipe is in threaded connection with a screw rod.

Preferably, the bottom end of the screw rod is in threaded connection with a threaded hole formed in the top of the fine filter screen plate.

Preferably, the bottom of the purification box is provided with an oil outlet pipe.

Preferably, the positioning screw rod and the lifting rod are both of T-shaped structures.

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

1. according to the utility model, the lubricating oil can be filtered twice by arranging the coarse filter screen plate, the fine filter screen plate and the like, and the filtering effect is good.

2. According to the oil inlet pipe, the two oil inlet cavities are formed in the oil inlet pipe through the partition plate, the filtering mechanisms are arranged in the two oil inlet cavities, when the oil inlet pipe is purified, the two filtering mechanisms are in a one-use one-standby state, the service states of the two filtering mechanisms are conveniently replaced by rotating the oil inlet pipe, the blocked filtering mechanisms are conveniently dismounted, cleaned and cleaned, the purification work is not stopped, and the purification efficiency can be improved.

3. According to the utility model, the bottom of the filtering mechanism is fixed on the bearing plate through the matching of the convex block and the groove, the operation is simple, and the filtering mechanism is convenient to take out and clean through the lifting rod.

Drawings

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

FIG. 2 is a schematic view of the structure of the purification box of the present invention;

FIG. 3 is a schematic view of the structure of an oil inlet pipe according to the present invention;

FIG. 4 is a schematic cross-sectional view of an oil inlet pipe according to the present invention

FIG. 5 is a schematic structural diagram of a carrier plate according to the present invention;

FIG. 6 is a schematic view of the filter mechanism of the present invention;

fig. 7 is a partially enlarged schematic view of the present invention.

In the figure: 1. a purification box; 2. a through hole; 3. a bearing; 4. an oil inlet pipe; 5. a partition plate; 6. an oil inlet cavity; 7. a carrier plate; 8. coarse filter screen plate; 9. fine filter screen plate; 10. a bump; 11. a groove; 12. lifting a pull rod; 13. a fixing plate; 14. a small hole; 15. positioning a screw rod; 16. a threaded pipe; 17. a screw rod; 18. a threaded hole; 19. an oil outlet pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1-7, the present invention provides a technical solution: a steam turbine oil purification device comprises a purification box 1, wherein a through hole 2 is formed in the center of the top of the purification box 1, a bearing 3 penetrates through the through hole 2, an oil inlet pipe 4 penetrates through the bearing 3, the inside of the oil inlet pipe 4 is divided into two oil inlet cavities 6 through a partition plate 5, a bearing plate 7 is fixedly connected into each oil inlet cavity 6, a filtering mechanism is arranged at the top of each bearing plate 7, the filtering mechanism comprises a coarse filtering screen plate 8, a fine filtering screen plate 9 is connected below the coarse filtering screen plate 8 through a connecting piece, a lug 10 is fixedly connected to the bottom of the fine filtering screen plate 9, and the lug 10 is clamped with a groove 11 formed in the top of the bearing plate 7; the top of the coarse filter screen plate 8 is fixedly connected with a lifting rod 12; the outer side wall of the oil inlet pipe 4 is fixedly connected with a fixing plate 13, a small hole 14 is formed in the fixing plate 13, and a positioning screw 15 is movably arranged in the small hole 14.

Furthermore, the cross sections of the oil inlet cavity 6 and the bearing plate 7 are both of a D-shaped structure, and the upper side and the lower side of the bearing plate 7 are provided with mutually communicated D-shaped grooves.

Furthermore, the two connecting pieces are correspondingly arranged left and right; the connecting piece comprises a threaded pipe 16, the top end of the threaded pipe 16 is fixedly connected with the bottom of the coarse filter screen plate 8, and the bottom end of the threaded pipe 16 is in threaded connection with a screw rod 17.

Further, the bottom end of the screw rod 17 is in threaded connection with a threaded hole 18 formed in the top of the fine filter screen plate 9.

Further, an oil outlet pipe 19 is arranged at the bottom of the purifying box 1.

Furthermore, the positioning screw 15 and the lifting rod 12 are both in a T-shaped structure.

The working principle is as follows: when the oil purifier is used, lubricating oil is led into one of the oil inlet cavities 6 of the oil inlet pipe 4, so that the two filtering mechanisms are in a one-use one-standby state, the lubricating oil enters the purifying box 1 after being purified twice by the coarse filtering screen plate 8 and the fine filtering screen plate 9 and then is led out by the oil outlet pipe 19, the lubricating oil is filtered twice, and the filtering effect is good; when the used filtering mechanism is blocked, the positioning screw 15 is detached, the fixing of the oil inlet pipe 4 is released, then the oil inlet pipe 4 is rotated, the positions of the two oil inlet cavities 6 are replaced, the standby filtering mechanism can be converted into a use state, the filtering mechanism in the use state is converted into a standby state, the filtering can be continuously performed, the purifying efficiency can be improved, and after the conversion is completed, the oil inlet pipe 4 is fixed again through the positioning screw 15; when the blocked filtering mechanism is cleaned, the coarse filtering screen plate 8 is lifted upwards through the lifting rod 12, the coarse filtering screen plate 8 drives the fine filtering screen plate 9 to move along through the threaded pipe 16 and the screw rod 17, and the convex block 10 is pulled out of the groove 11, so that the filtering mechanism can be taken out, the operation is simple, and the cleaning is convenient; wherein, through rotating lead screw 17, can take lead screw 17 out from screw hole 18 to can separate the clearance with coarse filtration otter board 8 and smart filtration otter board 9 of crossing, cleaning efficiency is fast, and effectual.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The oil purification device for the steam turbine is characterized by comprising a purification box (1), wherein a through hole (2) is formed in the center of the top of the purification box (1), a bearing (3) penetrates through the inside of the through hole (2), an oil inlet pipe (4) penetrates through the inside of the bearing (3), the inside of the oil inlet pipe (4) is divided into two oil inlet cavities (6) through a partition plate (5), a bearing plate (7) is fixedly connected into each oil inlet cavity (6), a filtering mechanism is arranged on the top of the bearing plate (7), the filtering mechanism comprises a coarse filtering screen plate (8), a fine filtering screen plate (9) is connected to the lower part of the coarse filtering screen plate (8) through a connecting piece, a convex block (10) is fixedly connected to the bottom of the fine filtering screen plate (9), and the convex block (10) is clamped with a groove (11) formed in the top of the bearing plate (7); the top of the coarse filter screen plate (8) is fixedly connected with a lifting rod (12); the outer side wall of the oil inlet pipe (4) is fixedly connected with a fixing plate (13), a small hole (14) is formed in the fixing plate (13), and a positioning screw rod (15) is movably arranged in the small hole (14).

2. The oil purification apparatus for a steam turbine according to claim 1, wherein: the cross sections of the oil inlet cavity (6) and the bearing plate (7) are of D-shaped structures, and the upper side and the lower side of the bearing plate (7) are provided with D-shaped grooves which are communicated with each other.

3. The oil purification apparatus for a steam turbine according to claim 1, wherein: the two connecting pieces are arranged and are arranged correspondingly left and right; the connecting piece comprises a threaded pipe (16), the top end of the threaded pipe (16) is fixedly connected with the bottom of the coarse filter screen plate (8), and the bottom end of the threaded pipe (16) is in threaded connection with a screw rod (17).

4. The oil purification apparatus for a steam turbine according to claim 3, wherein: the bottom end of the screw rod (17) is in threaded connection with a threaded hole (18) formed in the top of the fine filter screen plate (9).

5. The oil purification apparatus for a steam turbine according to claim 1, wherein: an oil outlet pipe (19) is arranged at the bottom of the purification box (1).

6. The oil purification apparatus for a steam turbine according to claim 1, wherein: the positioning screw rod (15) and the lifting rod (12) are both in T-shaped structures.