CN111305951A

CN111305951A - Coarse lubricating oil filter of gas turbine

Info

Publication number: CN111305951A
Application number: CN202010210032.XA
Authority: CN
Inventors: 刘文文; 何彬; 杨永波; 常春辉; 张智博
Original assignee: 703th Research Institute of CSIC
Current assignee: 703th Research Institute of CSIC
Priority date: 2020-03-23
Filing date: 2020-03-23
Publication date: 2020-06-19

Abstract

The invention relates to a rough lubricating oil filter of a gas turbine, relating to a lubricating oil accessory used in the ship industry, aiming at providing the rough lubricating oil filter which is arranged in front of a lubricating oil nozzle and behind a fine lubricating oil filter and is used for protecting the gas turbine from accidental pollution which can occur after essential oil filtering damage, a cover component is arranged on a filter shell, a switch is arranged on the filter shell, a top connecting flange is fixedly arranged at the top of a pipe, a vertical arc-shaped wall plate is arranged between two horizontal wall plates, one end of a lug boss is arranged on the vertical arc-shaped wall plate and is communicated with the vertical arc-shaped wall plate, the other end of the lug boss is provided with a first pipe joint, a plurality of through holes are processed at the position of the outer side wall of the pipe, which is opposite to the vertical arc-shaped wall plate, a bottom base is arranged on the bottom of the pipe, the top end of a second, the switch is mounted on the bottom base and the cover assembly is mounted on the top attachment flange. The present invention belongs to the field of energy source and power industry.

Description

Coarse lubricating oil filter of gas turbine

Technical Field

The invention relates to a lubricating oil accessory used in the ship industry, belongs to the energy power industry, and particularly relates to a protective filtering device with low filtering precision, which can effectively intercept larger impurities formed by damage of a fine filter element and improve the operation safety of a gas turbine.

Background

The gas turbine lubrication system ensures that the bearing parts and the gear meshing parts of the gas turbine are lubricated and cooled under all working conditions of the gas turbine. The oil contamination in the lubrication system comprises friction wear and corrosion of friction mating parts, oil coking or oil sludge, sundries entering through a sealing device, cutting scraps remained in a bearing cavity of a gas turbine, and dirt mixed in when the oil is filled, and the oil contamination can block an oil nozzle, so that a bearing is burnt due to no oil lubrication and cooling, or enters the working surface of a gear and the bearing, the friction wear is aggravated, the early failure is caused, and the service life of the bearing is shortened. Keeping the lubricant clean is a very important measure to improve the reliability and life of the gas turbine. It is further desirable to provide a gas turbine rough oil filter and be disposed in front of the oil nozzle, behind the fine oil filter, for protecting the gas turbine from accidental contamination that may occur after damage to the fine oil filter, the rough oil filter allowing short time testing of the gas turbine without the fine oil filter.

Disclosure of Invention

The object of the invention is to provide a coarse lubricating oil filter arranged before the lubricating oil nozzle, after the fine lubricating oil filter, for protecting the gas turbine against accidental contamination which may occur after damage to the fine lubricating oil filter.

The technical scheme adopted by the invention for solving the problems is as follows:

it includes filter shell, cover component and switch; the filter shell comprises a pipe, a top connecting flange, a vertical arc-shaped wall plate, a first pipe joint, a second pipe joint, a boss, a lifting lug, a bottom base and two horizontal wall plates, wherein a cover component is arranged on the filter shell, a switch is arranged on the filter shell, the pipe is a circular pipe body, the top connecting flange is fixedly arranged at the top of the pipe, the two horizontal wall plates are horizontally and symmetrically arranged on the outer side wall of the pipe, the vertical arc-shaped wall plate is arranged between the two horizontal wall plates and forms a cavity with the outer side wall of the pipe, one end of the boss is arranged on the vertical arc-shaped wall plate and is communicated with the vertical arc-shaped wall plate, the first pipe joint is arranged at the other end of the boss, a plurality of through holes are processed at the position of the outer side wall of the pipe, which is opposite to the vertical arc-, the switch is mounted on the bottom base and the cover assembly is mounted on the top attachment flange.

The invention has the beneficial effects that:

1. the application can effectively intercept larger impurities formed by damage of the fine filter element, and can test the gas turbine for a short time under the condition without a fine lubricating oil filter.

2. The application has the advantages of compact structure, impact vibration resistance and high reliability.

3. This application comprises multiple filter unit, in case take place the filter unit and damage, can independently change, reduces cost of maintenance.

4. This application comprises multiple filter unit, and its filter unit can be torn open alone and wash, and is lower to wasing the container volume requirement.

5. This application is from taking the switch, can not demolish the filter when the inside section of thick bamboo wall of filter washs, and dirty oil accessible switch after the washing is effectively discharged, and it is convenient to maintain.

6. The application can also be applied to other liquid conveying pipelines and equipment, and can effectively filter impurities in the medium.

Drawings

Fig. 1 is a front view of the overall structure of the present application.

Fig. 2 is a top view of the overall structure of the present application.

Fig. 3 is a view from a-a in fig. 2.

Fig. 4 is a schematic structural view of the cap assembly 4 of the present application.

Fig. 5 is a schematic diagram of the structure of the switch 7.

Detailed Description

The first embodiment is as follows: the embodiment is described with reference to fig. 1 to 5, and the gas turbine rough lubricating oil filter of the embodiment comprises a filter housing 1, a cover assembly 4 and a switch 7; the filter shell 1 comprises a pipe 1C, a top connecting flange 1D, a vertical arc-shaped wall plate 1F, a first pipe joint 1H, a second pipe joint 1K, a boss 1I, a lifting lug 1L, a bottom base 1M and two horizontal wall plates 1E, a cover assembly 4 is installed on the filter shell 1, a switch 7 is installed on the filter shell 1, the pipe 1C is a circular pipe body, the top connecting flange 1D is fixedly installed at the top of the pipe 1C, the two horizontal wall plates 1E are horizontally and symmetrically installed on the outer side wall of the pipe 1C, the vertical arc-shaped wall plate 1F is installed between the two horizontal wall plates 1E and forms a cavity with the outer side wall of the pipe 1C, one end of the boss 1I is installed on the vertical arc-shaped wall plate 1F and communicated with the vertical arc-shaped wall plate 1F, the first pipe joint 1H is installed at the other end of the boss 1I, a plurality of, bottom base 1M installs on the bottom of pipe 1C, and install on bottom base 1M on the top of second coupling 1K, and lug 1L installs on bottom base 1M and second coupling 1K, and switch 7 installs on bottom base 1M, and lid subassembly 4 installs on top flange 1D.

The second embodiment is as follows: the embodiment is described with reference to fig. 1 to 4, and the gas turbine rough lubricating oil filter according to the embodiment further comprises a first block cover 6, a second block cover 9 and a third block cover 10, wherein the first block cover 6 is covered on the first pipe joint 1H, the second block cover 9 is covered on the bottom of the switch 7, and the third block cover 10 is covered on the bottom end of the second pipe joint 1K. The rest is the same as the first embodiment.

The third concrete implementation mode: referring to fig. 1 to 4, the present embodiment will be described, in which a cover assembly 4 includes a bush 4A, a filter frame 4B, a filter unit 4C, a hood 4D, a cover 4E, a nut 4F, a lock washer 4G, and a support washer 4H, the cover 4E is mounted on the top end of the filter frame 4B via the nut 4F, the bush 4A is mounted on the bottom end of the filter frame 4B, the filter unit 4C is fitted over the filter frame 4B between the cover 4E and the bush 4A, the lock washer 4G is disposed between the nut 4F and the cover 4E, the support washer 4H is fitted over the cover 4E, the hood 4D is fastened to the top end of the cover 4E near the support washer 4H, and a filter assembly including the filter unit 4C is mounted on the cover assembly 4. A packing 5 is installed between the cap assembly 4 and the filter housing 1 to seal. The rest is the same as the first embodiment.

The fourth concrete implementation mode: the present embodiment is described with reference to fig. 1, and the gas turbine rough lubricating oil filter according to the present embodiment further includes a plurality of bolts 2 and a plurality of washers 3, each bolt 2 is sleeved with one washer 3, and a cover 4E is mounted on the top connection flange 1D by the plurality of bolts 2. The rest is the same as the first embodiment.

The fifth concrete implementation mode: in the present embodiment, the switch 7 includes a switch needle 7A, a stopper ring 7B, a cap nut 7C, a seal ring 7D, and a switch case 7E; switch casing 7E passes through switch gasket 8 seal installation on bottom base 1M, and switch needle 7A cartridge is equipped with sealing washer 7D on the switch needle 7A in

switch casing

7E, 7C suit on switch needle 7A and with switch casing 7E threaded connection, stop ring 7B installs on switch needle 7A. The rest is the same as the first embodiment.

The switch 7 is screwed into the bottom of the filter housing 1 for draining oil from the filter chamber before inspection and replacement of the filter unit. In order to release the oil through the switch 7, the cap nut 7C must be unscrewed several times until it bears against the stop ring 7B, the switch needle 7A is opened, the oil passes through the hole to the discharge opening, and after the oil has been discharged, the cap nut must be tightened and locked.

The sixth specific implementation mode: referring to fig. 1 and 3, the embodiment is described, and the filter housing 1 further includes a connecting plate 1A and two rib plates 1B, the connecting plate 1A is horizontally installed on an outer side wall of the pipe 1C, the two rib plates 1B are installed on the connecting plate 1A and an outer side wall of the pipe 1C in parallel, and a plurality of threaded holes are processed on the connecting plate 1A. The rest is the same as the first embodiment.

Principle of operation

When the filter works, lubricating oil enters the cavity a from the lubricating oil booster pump through the inlet pipe connector and then is supplied to the cavity b through holes in the wall surface of the pipe of the filter shell. The oil enters the interior through the filter unit on the lid and enters the lubrication system through the outlet pipe connection.

Claims

1. A gas turbine rough lubricating oil filter is characterized in that: it comprises a filter shell (1), a cover component (4) and a switch (7); the filter shell (1) comprises a pipe (1C), a top connecting flange (1D), a vertical arc-shaped wall plate (1F), a first pipe joint (1H), a second pipe joint (1K), a boss (1I), a lifting lug (1L), a bottom base (1M) and two horizontal wall plates (1E), a cover assembly (4) is installed on the filter shell (1), a switch (7) is installed on the filter shell (1), the pipe (1C) is a circular pipe body, the top connecting flange (1D) is fixedly installed at the top of the pipe (1C), the two horizontal wall plates (1E) are horizontally and symmetrically installed on the outer side wall of the pipe (1C), the vertical arc-shaped wall plate (1F) is installed between the two horizontal wall plates (1E) and forms a cavity with the outer side wall of the pipe (1C), one end of the boss (1I) is installed on the vertical arc-shaped wall plate (1F) and is communicated with the vertical arc-shaped wall plate (, first coupling (1H) is installed to the other end of boss (1I), pipe (1C) lateral wall and vertical arc wallboard (1F) department of being relative processing have a plurality of through-holes, install on the bottom of pipe (1C) bottom base (1M), install on bottom base (1M) the top of second coupling (1K), install on bottom base (1M) and second coupling (1K) lug (1L), install on bottom base (1M) and second coupling (1K), switch (7) are installed on bottom base (1M), install on top flange (1D) lid subassembly (4).

2. The gas turbine rough lubricating oil filter of claim 1, wherein: the novel pipe joint further comprises a first blocking cover (6), a second blocking cover (9) and a third blocking cover (10), wherein the first blocking cover (6) is covered on the first pipe joint (1H), the second blocking cover (9) is covered at the bottom of the switch (7), and the third blocking cover (10) is covered at the bottom end of the second pipe joint (1K).

3. The gas turbine rough lubricating oil filter of claim 1, wherein: lid subassembly (4) includes bush (4A), filter framework (4B), filter unit (4C), hood (4D), lid (4E), nut (4F), lock gasket (4G) and support gasket (4H), lid (4E) are installed on the top of filter framework (4B) through nut (4F), bush (4A) are installed on the bottom of filter framework (4B), filter unit (4C) suit is on filter framework (4B) between lid (4E) and bush (4A), lock gasket (4G) set up between nut (4F) and lid (4E), support gasket (4H) suit is on lid (4E), hood (4D) are close to support gasket (4H) and detain on the top of lid (4E).

4. The gas turbine rough lubricating oil filter of claim 3, wherein: it still includes a plurality of screws (2) and a plurality of packing ring (3), and the cover is equipped with one packing ring (3) on every screw (2), and lid (4E) are installed on top flange (1D) through a plurality of screws (2).

5. The gas turbine rough lubricating oil filter of claim 1, wherein: the switch (7) comprises a switch needle (7A), a stop ring (7B), a cap nut (7C), a sealing ring (7D) and a switch shell (7E); switch casing (7E) passes through switch gasket (8) seal installation on bottom base (1M), and switch needle (7A) cartridge is equipped with sealing washer (7D) in switch casing (7E) on switch needle (7A), and cap nut (7C) suit is on switch needle (7A) and with switch casing (7E) threaded connection, and stop ring (7B) is installed on switch needle (7A).

6. The gas turbine rough lubricating oil filter of claim 1, wherein: the filter shell (1) further comprises a connecting plate (1A) and two rib plates (1B), the connecting plate (1A) is horizontally arranged on the outer side wall of the pipe (1C), the two rib plates (1B) are arranged on the outer side walls of the connecting plate (1A) and the pipe (1C) in parallel relatively, and a plurality of threaded holes are machined in the connecting plate (1A).