CN104841676B - A kind of turbo-engine lube switches rinse-system and its purging method - Google Patents
A kind of turbo-engine lube switches rinse-system and its purging method Download PDFInfo
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- CN104841676B CN104841676B CN201510261953.8A CN201510261953A CN104841676B CN 104841676 B CN104841676 B CN 104841676B CN 201510261953 A CN201510261953 A CN 201510261953A CN 104841676 B CN104841676 B CN 104841676B
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- oil
- main line
- plug
- feed
- bearing block
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2209/00—Details of machines or methods for cleaning hollow articles
- B08B2209/02—Details of apparatuses or methods for cleaning pipes or tubes
- B08B2209/027—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces
- B08B2209/04—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces using cleaning devices introduced into and moved along the pipes
- B08B2209/053—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces using cleaning devices introduced into and moved along the pipes being moved along the pipes by a fluid, e.g. by fluid pressure or by suction
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
A kind of turbo-engine lube switching rinse-system and its purging method of the present invention, including bearing block, device for washing oil, the pipeline road being connected with device for washing oil, and pipeline road end is fixed on for adjusting the adjustable plug of flow of lubrication in pipeline, the pipeline road includes oil-feed main line and the oil return main line being coaxially set in oil-feed main line, the oil inlet of the oil-feed main line is connected with the oil-out of device for washing oil, the oil-out of oil return main line is connected with the oil inlet of device for washing oil, the oil inlet of the bearing block is connected by oil inlet pipe with oil-feed main line, the oil-out of bearing block is connected by oil return pipe with oil return main line.The present invention carries out sectional flushing using double-layer oil delivery pipe road to inflow pipeline and bearing block, and cleaning treatment is carried out to lubricating oil while can clearing up pipeline, and without removing the bearing shell in bearing block, it rinses convenient, has saved flushing lubrication time.
Description
Technical field
The present invention relates to turbo-engine lube douching technique field, and in particular to system is rinsed in a kind of turbo-engine lube switching
System and its purging method.
Background technology
Steam turbine is the nucleus equipment in thermal power plant, and it is steam turbine generator that the effect of turbine oil system is mainly
Radial journal bearing, thrust bearing and the barring gear organized are provided and lubricate and take away the heat that friction is produced, it is ensured that unit safety reliability
Operation.The main main oil pump driven by turbine spindle of lubricating oil system, oil cooler, shaft-raising gear, barring gear, main fuel tank,
Fuel tank pipeline and annex, grease pump, emergency bearing oil pump, oil-system pipelines etc. are constituted.In order to ensure oil system cleannes, it is necessary to
Flushing is circulated to whole oil system.Oil reaches seven grades of NAS can just carry out washing pipe and steam turbine red switch afterwards.Therefore oil circulation
Used as the indispensable operation that body is installed, what the time of circulation and the quality of quality directly affected installation period and unit operation can
By property.Traditional oil flushing device need to enter the bearing shell removal in bearing block to bearing again when being rinsed to bearing
Row lubrication is rinsed, and is rinsed and is completed again to install bearing shell, it is to avoid blocks filter screen because oil product impurity is more, influence the fortune of bearing
Row and service life, the system are caused to rinse and bothered, and influence flush efficiency.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of turbo-engine lube switching rinse-system and its purging method,
The oil that lubricating oil can be improved, the screen pack that need not be dismantled in bearing carry out bearing flushing, improve bearing flush efficiency, together
When avoid oil product kind from containing impurity and influence the service life of bearing.
In order to solve the above technical problems, the present invention uses following technical scheme：
A kind of turbo-engine lube switches rinse-system, including bearing block, device for washing oil be connected with device for washing oil it is defeated
Oil pipe line and pipeline road end is fixed on for adjusting the adjustable plug of flow of lubrication in pipeline, the pipeline road
Including oil-feed main line and the oil return main line being coaxially set in oil-feed main line, the oil inlet of the oil-feed main line with wash
The oil-out of oily device is connected, and the oil-out of oil return main line is connected with the oil inlet of device for washing oil, the oil-feed of the bearing block
Mouth is connected by oil inlet pipe with oil-feed main line, and the oil-out of bearing block is connected by oil return pipe with oil return main line.
The rubber for preventing lubricating oil from entering in bearing block is provided with the oil inlet pipe and expands plug.
The adjustable plug includes being fixed at oil return main line oil inlet and forms confined space with oil return main line
Outer plug, and be fixed at oil-feed main line oil-out and be used to blocking the interior plug of the oil-out, the interior plug have with
The screw rod that the plug is connected, the outer plug is provided with the screw matched with screw rod, the interior plug by bolt with it is outer
Plug is fixedly connected, and the opening or envelope of oil-feed main line oil-out are controlled with the length by adjusting screw rod in outer plug
Close.
The oil inlet pipe is provided with a filter, and the filter includes the outer cylinder body and the peace that are connected with oil inlet pipe
Cartridge filter in outer cylinder body, the cartridge filter is made up of screen pack, and its shape is identical with the shape of outer cylinder body, the outer barrel
Flange one and flange two are respectively fixed with the opening of body and cartridge filter.
With cartridge filter to be coaxially disposed, the both sides of the outer cylinder body have the oil-feed being connected with oil inlet pipe to the outer cylinder body
Hole and oil outlet, the side wall of the cartridge filter are provided with a perforate corresponding with the fuel feed hole, and the oil inlet end of the oil inlet pipe leads to
Perforate is crossed to be extended to the in filter cylinder.
The device for washing oil includes the main fuel tank that is connected with pipeline road, and be arranged between main fuel tank and bearing block and with
Oil cooler and filter that pipeline road is connected.
The oil-feed main line is at least two.
A kind of turbo-engine lube switches the purging method of rinse-system, comprises the following steps：
(A) pipeline is rinsed：The oil inlet that plug blocks the oil inlet pipe being connected with each bearing block is expanded with rubber,
Open device for washing oil to clean oil-feed main line, the lubricating oil after flushing is carried out in flowing into device for washing oil through oil return main line
Filtering and cooling.
(B) repeat step (A) is untill the quality of lubrication oil detection in oil-feed main line is qualified；
(C) bearing block is rinsed：When the lubricating oil detection in oil-feed main line is qualified, opens and be arranged in oil inlet pipe
Rubber expansion plug, the lubricating oil in oil-feed main line carries out cleaning lubrication by oil inlet pipe to bearing block, the profit after cleaning
Lubricating oil is reached in oil return main line by oil return pipe, is then filtered and is cooled down through in oil return main line feeding device for washing oil.
In such scheme, pipe flushing in the step (A) also comprises the following steps：
A () opens wherein that oil-feed main line goes out all the way when oil-feed main line is multichannel by adjusting adjustable plug
Hydraulic fluid port, blocks the oil-out of other a few road oil-feed main lines, and the lubricating oil in device for washing oil is rinsed to the pipeline of the opening.
B the quality of the lubricating oil in () detecting step (a) pipeline, when up-to-standard, is replaced by adjusting adjustable plug
Change other pipelines to be rinsed, repeat said process, completed until oil-feed main line is rinsed.
The beneficial effects of the invention are as follows：Turbo-engine lube of the present invention switches rinse-system and its purging method,
Sectional flushing is carried out to inflow pipeline and bearing block using double-layer oil delivery pipe road, lubricating oil is carried out clearly while pipeline can be cleared up
Clean treatment, without removing the bearing shell in bearing block, it rinses convenient, has saved flushing lubrication time.In the duct using adjustable
Formula plug carries out inflow pipeline and is rinsed, it is possible to achieve do not stop oil pump on-line control flow, by the oil-feed in lubricating oil system
Main line switches flushing to ensure flushing flow rate in turn, realizes that speed change, variable-flow are rinsed, to reach more preferable cleaning performance, and
The dismounting of plug will not be polluted to system.Rubber expansion plug is installed on the oil inlet pipe being connected with bearing block, is realized
Various working conditions such as short-circuit, breaking, the normal flushing of bearing block fuel feed pump.
Brief description of the drawings
Fig. 1 is system diagram of the invention；
Fig. 2 is enlarged drawing when adjustable plug of the present invention is installed with pipeline road cooperation；
Fig. 3 is the structural representation that rubber of the present invention expands plug；
Fig. 4 is structural representation when filter of the present invention is installed with oil inlet pipe cooperation；
Fig. 5 is the sectional view of A-A in Fig. 4；
Fig. 6 is structural representation when filter of the present invention, rubber expansion plug and oil inlet pipe cooperation are installed；
Fig. 7 is the explosive view of filter of the present invention；
Label in figure：1st, bearing block；2nd, device for washing oil；21st, main fuel tank；22nd, oil cooler；23rd, filter；3rd, rubber expansion
Plug；31st, rubber blanket；32nd, left clamping plate；33rd, right clamping plate；34th, bolt；41st, oil-feed main line；42nd, oil return main line；5th, oil-feed
Pipe；6th, adjustable plug；61st, outer plug；62nd, interior plug；63rd, screw rod；64th, nut；7th, filter；71st, outer cylinder body；711、
Fuel feed hole；712nd, oil outlet；72nd, cartridge filter；721st, perforate；73rd, flange one；74th, flange two；75th, blind flange；76th, help to shoulder heavy thing；8、
Oil return pipe.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
As shown in figure 1, the present embodiment turbo-engine lube switching rinse-system, including bearing block 1, device for washing oil 2 and
Pipeline road that device for washing oil 2 is connected and pipeline road end is fixed on for adjusting the adjustable of flow of lubrication in pipeline
Examination plug 6, pipeline road includes oil-feed main line 41 and the oil return main line 42 being coaxially set in oil-feed main line 41, oil-feed
The oil inlet of main line 41 is connected with the oil-out of device for washing oil 2, the oil-out of oil return main line 42 and the oil-feed of device for washing oil 2
Mouth is connected, and the oil inlet of bearing block 1 is connected by oil inlet pipe 5 with oil-feed main line 41, and the oil-out of bearing block 1 passes through oil return
Pipe 8 is connected with oil return main line 42.Device for washing oil 2 includes the main fuel tank 21 being connected with pipeline road in the present embodiment, and
The oil cooler 22 and filter 23 for being arranged between main fuel tank 21 and bearing block 1 and being connected with pipeline road.Actually used
In, oil-feed main line 41 is usually a plurality of, can weaken lubricating oil into the impact of pipeline because pipeline is more in flushing process
Power, can cause pipe flushing unclean, so being mounted with that adjustable plug 6 is imitated to improve the cleaning of pipeline in line portals
Really.
The break-make of the rinse-system oil inlet pipe 5 is controlled for convenience, is provided with for preventing lubricating oil from entering in oil inlet pipe 5
Rubber expansion plug 3 in bearing block 1.As shown in figure 3, the rubber expansion type plug 3 by rubber blanket 31, be arranged on rubber blanket 31
The left clamping plate 32 and right clamping plate 33 of both sides are constituted, and the centre of the rubber blanket 31, left clamping plate 32 and right clamping plate 33 is offered for inciting somebody to action
Its bolt 34 fixed.The rubber blanket 31 has certain thickness, and its shape is identical with the shape of oil inlet pipe 5, and its external diameter is smaller
In the caliber of oil inlet pipe 5, the size of left clamping plate 32 and right clamping plate 33 matches with the rubber blanket 31, by left clamping plate 32 and right folder
The pressure that plate 33 inwardly applies makes rubber blanket 31 produce the deformation of certain outwards expansion, so as to block the mouth of pipe of oil inlet pipe 5, prevents
The lubricating oil in outside enters.First bolt 34 is unscrewed when in use, after rubber expansion plug 3 is fixed on into mouth of pipe inner side, is passed through
Instrument tightens bolt 34, so as to be fixed in the duct.First loose bolts 34, are then taken out during dismounting.
As shown in Fig. 2 adjustable plug 6 include be fixed at the oil inlet of oil return main line 42 and with the shape of oil return main line 42
Into the outer plug 61 of confined space, and the interior plug 62 for blocking the oil-out is fixed at the oil-out of oil-feed main line 41,
With the screw rod 63 being connected with the plug on interior plug 62,61 are provided with the screw matched with screw rod 63 on outer plug, interior
Plug 62 is fixedly connected by nut 64 with outer plug 61, controlled with the length by adjusting screw rod 63 in outer plug 61 into
The opening of the oil-out of oily main line 41 or closing.Oil-feed main line 41 enters in pipeline in flushing process according to lubricating oil
Actual oil pressure condition is adjusted to adjustable plug 6.Regulation process is as follows：Nut 64 on screw rod 63 is unscrewed, by spiral shell
Bar 63 moves at the pipeline opening for needing to block interior plug 62, and it is mutually compressed with pipeline opening, then tightens on screw rod 62
Nut 64.
As shown in Figure 4 to 7, oil inlet pipe 5 is provided with a filter 7, and filter 7 includes being connected with oil inlet pipe 5
Outer cylinder body 71 and the cartridge filter 72 in outer cylinder body 71, cartridge filter 72 is made up of screen pack, its shape and outer cylinder body 71
Shape it is identical, flange 1 and flange 2 74 are respectively fixed with the opening of outer cylinder body 71 and cartridge filter 72, on flange install
There is blind flange 75.With cartridge filter 72 to be coaxially disposed, the both sides of outer cylinder body 71 are provided with for being connected with oil inlet pipe 5 outer cylinder body 71
Fuel feed hole 711 and oil outlet 712, the side wall of cartridge filter 72 is provided with a perforate 721 corresponding with the fuel feed hole 711, enters
The oil inlet end of oil pipe 5 is extended to the in filter cylinder 72 by perforate 721.The dismounting of cartridge filter 72 for convenience, on flange 2 74
It is provided with and helps to shoulder heavy thing 76.Blind flange 75 is installed when using, lubricating oil is first flowed into cartridge filter 72, then by outer cylinder body 71
Oil-out 712 enters in oil inlet pipe 5 and then in inflow bearing block 1, and the filter 7 can be to entering the lubrication in bearing block 1
Oil carries out ultimate filtering, with the oil product cleannes for ensureing to enter in bearing block 1, using can take out cartridge filter 72 pairs after a period of time
It is reused after being cleared up.The filter 7 is alternatively arranged as backup line and uses, and when being used as backup line, first will
The rubber expansion plug 3 of blind flange 75 and front side on filter 7 is removed, and expansion plug 3 is arranged on into filter 7
In the pipeline of rear side, with prevent lubricating oil by oil inlet pipe 5 enter bearing block 1 in, then by filter 7 by flange with it is outer
Adapter road is connected.
The turbo-engine lube of the present embodiment switches the purging method of rinse-system, comprises the following steps：
S1：Pipeline is rinsed：The oil-feed that plug 3 blocks the oil inlet pipe 5 being connected with each bearing block 1 is expanded with rubber
Mouthful, to open device for washing oil 2 and oil-feed main line 41 is cleaned, the lubricating oil after flushing flows into washing oil and fills through oil return main line 42
Filtered in putting 2 and cooled down.
When oil-feed main line 41 is multichannel, first passes through regulation adjustable plug 6 and open wherein oil-feed main line 41 all the way
Oil-out, block the oil-out of other a few road oil-feed main lines 41, the lubricating oil in device for washing oil 2 enters to the pipeline of the opening
Row is rinsed.Then the quality of the lubricating oil in detecting step (a) pipeline, when up-to-standard, is replaced by adjusting adjustable plug 6
Change other pipelines to be rinsed, repeat said process, completed until oil-feed main line 41 is rinsed.
S2：Steps be repeated alternatively until in oil-feed main line 41 quality of lubrication oil detection it is qualified untill；
S3：Bearing block 1 is rinsed：When the lubricating oil detection in oil-feed main line 41 is qualified, opens and be arranged on oil-feed
Rubber expansion plug 3 in pipe 5, the lubricating oil in oil-feed main line 41 carries out cleaning lubrication by oil inlet pipe 5 to bearing block 1,
Lubricating oil after cleaning passes through in the arrival oil return of oil return pipe 8 main line 42, then through in the feeding device for washing oil 2 of oil return main line 42
Filtered and cooled down.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to model of the invention
Enclose and be defined, on the premise of design spirit of the present invention is not departed from, those of ordinary skill in the art are to technical side of the invention
Various modifications and improvement that case is made, all should fall into the protection domain of claims of the present invention determination.
Claims (7)
1. a kind of turbo-engine lube switches rinse-system, it is characterised in that：Including bearing block（1）, device for washing oil（2）With wash
Oily device（2）The pipeline road that is connected and pipeline road end is fixed on for adjusting the adjustable of flow of lubrication in pipeline
Formula plug（6）, the pipeline road include oil-feed main line（41）Be coaxially set in oil-feed main line（41）Interior oil return master
Pipeline（42）, the oil-feed main line（41）Oil inlet and device for washing oil（2）Oil-out be connected, oil return main line（42）'s
Oil-out and device for washing oil（2）Oil inlet be connected, the bearing block（1）Oil inlet pass through oil inlet pipe（5）It is responsible for oil-feed
Road（41）It is connected, bearing block（1）Oil-out pass through oil return pipe（8）With oil return main line（42）It is connected；The oil inlet pipe
（5）Inside it is provided with for preventing lubricating oil from entering bearing block（1）Interior rubber expansion plug（3）, the rubber expansion type plug（3）
By rubber blanket（31）, be arranged on rubber blanket（31）The left clamping plate of both sides（32）With right clamping plate（33）Composition, the rubber blanket（31）, it is left
Clamping plate（32）With right clamping plate（33）On offer bolt for being fixed（34）；The rubber blanket（31）With certain thickness
Degree, its shape and oil inlet pipe（5）Shape it is identical, its external diameter is slightly less than oil inlet pipe（5）Caliber, left clamping plate（32）With right clamping plate
（33）Size and the rubber blanket（31）Match, by left clamping plate（32）With right clamping plate（33）The pressure for inwardly applying makes rubber
Pad（31）Produce the deformation of certain outwards expansion.
2. a kind of turbo-engine lube according to claim 1 switches rinse-system, it is characterised in that：It is described adjustable stifled
Head（6）Including being fixed on oil return main line（42）At oil inlet and with oil return main line（42）Form the outer plug of confined space
（61）, and it is fixed on oil-feed main line（41）It is used to block the interior plug of the oil-out at oil-out（62）, the interior plug
（62）End be provided with coupled screw rod（63）, the outer plug（61）It is provided with and screw rod（63）The spiral shell for matching
Hole, the interior plug（62）By bolt（64）With outer plug（61）It is fixedly connected, with by adjusting screw rod（63）In outer plug
（61）Interior length controls oil-feed main line（41）The opening of oil-out or closing.
3. a kind of turbo-engine lube according to claim 1 switches rinse-system, it is characterised in that：The oil inlet pipe
（5）It is provided with a filter（7）, the filter（7）Including with oil inlet pipe（5）The outer cylinder body being connected（71）And install
In outer cylinder body（71）Interior cartridge filter（72）, the cartridge filter（72）It is made up of screen pack, its shape and outer cylinder body（71）Shape
Shape is identical, the outer cylinder body（71）And cartridge filter（72）Opening at be respectively fixed with flange one（73）With flange two（74）.
4. a kind of turbo-engine lube according to claim 3 switches rinse-system, it is characterised in that：The outer cylinder body
（71）With cartridge filter（72）To be coaxially disposed, the outer cylinder body（71）Both sides have and oil inlet pipe（5）The fuel feed hole being connected
（711）And oil outlet（712）, the cartridge filter（72）Side wall be provided with one with the fuel feed hole（711）Corresponding perforate
（721）, the oil inlet pipe（5）Oil inlet end pass through perforate（721）It is extended to the over filter cylinder（72）It is interior.
5. a kind of turbo-engine lube according to claim 1 switches rinse-system, it is characterised in that：The device for washing oil
（2）Including the main fuel tank being connected with pipeline road（21）, and it is arranged on main fuel tank（21）And bearing block（1）Between and and petroleum pipeline
The oil cooler that road is connected（22）And filter（23）.
6. a kind of turbo-engine lube according to claim 1 switches rinse-system, it is characterised in that：The oil-feed supervisor
Road（41）At least two.
7. a kind of turbo-engine lube according to claim 1 switches the purging method of rinse-system, it is characterised in that：Bag
Include following steps：
（A）Pipeline is rinsed：Plug is expanded with rubber（3）Block and each bearing block（1）Connected oil inlet pipe（5）Enter
Hydraulic fluid port, opens device for washing oil（2）To oil-feed main line（41）Cleaned, the lubricating oil after flushing is through oil return main line（42）Stream
Enter device for washing oil（2）In filtered and cooled down；
（B）Repeat step（A）Until oil-feed main line（41）Untill interior quality of lubrication oil detection is qualified；
（C）To bearing block（1）It is rinsed：When oil-feed main line（41）Interior lubricating oil detection is qualified, opens and is arranged on oil-feed
Rubber expansion plug in pipe（3）, oil-feed main line（41）Interior lubricating oil passes through oil inlet pipe（5）To bearing block（1）Carry out clear
Lubrication is washed, the lubricating oil after cleaning passes through oil return pipe（8）Reach oil return main line（42）In, then through oil return main line（42）Send
Enter device for washing oil（2）In filtered and cooled down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510261953.8A CN104841676B (en) | 2015-05-21 | 2015-05-21 | A kind of turbo-engine lube switches rinse-system and its purging method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510261953.8A CN104841676B (en) | 2015-05-21 | 2015-05-21 | A kind of turbo-engine lube switches rinse-system and its purging method |
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| Publication Number | Publication Date |
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| CN104841676A CN104841676A (en) | 2015-08-19 |
| CN104841676B true CN104841676B (en) | 2017-05-31 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110314431A (en) * | 2018-03-29 | 2019-10-11 | 上海宝冶集团有限公司 | Sandwich-type sieve flushing device and its application method for equipment lubrication system |
| CN110153112B (en) * | 2019-05-13 | 2020-06-16 | 中广核核电运营有限公司 | Method for flushing regulating oil system of steam turbine of nuclear power station |
| CN111570431B (en) * | 2020-05-12 | 2022-02-22 | 浙江省工业设备安装集团有限公司 | Construction method for oil circulation washing tile turning-free of steam turbine unit |
| CN113941576A (en) * | 2021-09-29 | 2022-01-18 | 中广核核电运营有限公司 | Method for flushing turbine lubricating oil system |
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| CN104415951B (en) * | 2013-08-21 | 2017-12-01 | 中国广核集团有限公司 | Steam turbine for nuclear power station adjusts Oil System Flushing method |
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| CN204638662U (en) * | 2015-05-21 | 2015-09-16 | 中国能源建设集团安徽电力建设第一工程有限公司 | A kind of turbo-engine lube switches rinse-system |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101392662A (en) * | 2008-11-04 | 2009-03-25 | 东方电气集团东方汽轮机有限公司 | Oil pipe filter for steam turbine and gas turbine |
| CN102814310A (en) * | 2012-08-24 | 2012-12-12 | 中国华冶科工集团有限公司 | Purging method and device for lubricating oil pipeline system of steam turbine generator unit |
| CN104047643A (en) * | 2014-06-20 | 2014-09-17 | 山东电力建设第一工程公司 | Device for adjusting flow of circulating oil of sleeve oil pipeline |
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| CN104841676A (en) | 2015-08-19 |
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