CN105179026A - Flushing system and method for lubricating oil system of steam turbine generator unit - Google Patents
Flushing system and method for lubricating oil system of steam turbine generator unit Download PDFInfo
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- CN105179026A CN105179026A CN201510654020.5A CN201510654020A CN105179026A CN 105179026 A CN105179026 A CN 105179026A CN 201510654020 A CN201510654020 A CN 201510654020A CN 105179026 A CN105179026 A CN 105179026A
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Abstract
The invention discloses a flushing system and method for a lubricating oil system of a steam turbine generator unit. The method includes the first step of connecting a bearing pedestal with an oil inlet and return pipe according to the design state, the second step of removing a bearing oil inlet pipe inside the bearing pedestal, the third step of starting a first oil filtering machine and cleaning a main oil tank and the bearing pedestal, the fourth step of shutting down the first oil filtering machine, pouring all lubricating oil of the main oil tank into an oil storage tank through a second oil filtering machine, and cleaning the main oil tank and the bearing pedestal, and the fifth step of pouring the lubricating oil in the oil storage tank into the main oil tank through the second oil filtering machine, starting the first oil filtering machine, sampling the lubricating oil of the main oil tank for testing, recovering an oil pipe inside the bearing pedestal and finishing the flush if the oil meets NAS7, and carrying out the steps 3-5 repeatedly if the oil does not meet NAS7. The lubricating oil can return to the main oil tank after directly entering the bearing pedestal and being flushed, so that provisional measures taken for oil inlet and return pipes of bearing pedestals are reduced, the cost is reduced, the installation period is shortened, and oil is prevented from secondary pollution.
Description
Technical field
The present invention relates to oil quality of lubricant turbidity test technical field, particularly relate to a kind of rinse-system and purging method of Turbo-generator Set lubricating oil system.
Background technique
Turbo-generator Set lubricating oil system is a kind of quite complicated system comprising a large amount of large small-bore pipeline and lubricant oil, even little deleterious particle also may cause the damage of unit bearing, thus causes arm and a leg maintenance down.
The capacity of new clothes unit increases day by day both at home and abroad at present, and its lubricating oil system is corresponding more complicated, and the oil-filled amount of system also increases gradually.Present stage 300MW and above unit generally all adopt large discharge oil filter as flush power when the purification of Turbo-generator Set oil, flushing source is divided into three tunnels, this flushing source, three tunnels is all export female pipe from large discharge oil filter to pick out: one, be connected to front bearing box main oil pump inlet ductwork, as the flushing source of main oil pump oil inlet and oil return pipe; Two, main fuel tank is connected to each bearing oil inlet pipe, as the flushing source of each bearing oil inlet and oil return pipe; Three, be connected to main fuel tank inside, rinse source as fuel tank self-loopa.Generally adopt following three steps to carry out during flushing: one, bearing oil inlet and oil return pipe to be used interim tube short circuit outward at bearing housing, oil does not enter bearing support and rinses; Two, lubricant oil enters bearing support but does not enter bearing shell to rinse; Three, lubricant oil enters bearing shell flushing.Lubricant oil storage and transporting system and the connecting tube between main fuel tank and oil tank adopt carbon steel piping, adopt oil transfer pump as power during this part pipe flushing, and there is no filter screen in system, the effect of flushing during flushing, can only be played, there is no the effect of filtering.
Adopt said method to improve the turbidity test of oil, the cycle is long, affects oily qualitative factor many.After first step has rinsed, needed a large amount of interim pipe of excision and recover formal pipeline, this just causes the secondary pollution of oil, needs to employ the weldering of electricity fire in implementation process, there is great potential safety hazard.And in ensuing second step, need all working in repetition step one scope, the waste plenty of time.Lubricant oil storage and transporting system use carbon steel piping, easily occur returning rust phenomenon, pollute oil after long-time use.
Current set lubricant oil storage and the piping design of transporting system are carbon steel piping, this is necessary pickling before just requiring Pipe installing, so the quality of pickling quality also directly affects cleanliness of lubricating oil, but affect by the level of skill etc. of the kind of acid, concentration, pickling personnel during carbon steel piping pickling, pickling quality is also uneven, the phenomenon returning rust after causing Pipe installing often occurs, causes oil to pollute.
Summary of the invention
Object of the present invention is exactly to solve the problem, and provides a kind of rinse-system and purging method of Turbo-generator Set lubricating oil system, can reduce the installment work of interim pipe, oil can be avoided again to be subject to secondary pollution, cost-saving.
To achieve these goals, the present invention adopts following technological scheme:
The purging method of Turbo-generator Set lubricating oil system, comprises the following steps:
Step one, is connected bearing support with the working state of oil inlet and oil return pipe according to design; So just need not connect interim pipe in bearing support outside;
Step 2, removed by bearing support internal bearings oil inlet pipe, lubricant oil flows directly to return tube after entering bearing support by oil inlet pipe, cannot enter bearing, reaches and only rinses the object that bearing support does not enter bearing;
Step 3, opens the first oil filter, is cleared up main fuel tank and bearing support by the filtration of the first oil filter; After this rinses, the foreign material of equipment and pipe interior finally can only be deposited on two places, and one be main fuel tank, two is each bearing supports;
Step 4, is stopped the first oil filter work, is all poured in oil tank by the lubricant oil of main fuel tank by the second oil filter, thoroughly cleaning main fuel tank and bearing support;
Step 5, pours in main fuel tank by the second oil filter by the lubricant oil of oil tank, again opens the first oil filter, carries out sampling detect the lubricant oil entering main fuel tank, when testing result reaches NAS7, is recovered by bearing support interior oil pipeline, rinses and terminate; When testing result does not reach NAS7, repeat step 3 to step 5.
In described step one, main fuel tank connects the filler opening of the first oil filter by oil transport pipeline, the delivery outlet of described first oil filter is connected in parallel three branch roads, article one, branch road is self-loopa pipeline, the import of direct connection main fuel tank, this branch road is provided with valve, connects the inlet tube of main oil pump after a branch road connects oil gun, this branch road is provided with valve, and another branch road is connected to main fuel tank on the oil pipe of bearing support import; Described main fuel tank connects oil tank by the second oil filter, the outlet of oil tank is also by connecting main fuel tank import after pipeline connection oil tank oil transfer pump, and the outlet of main fuel tank simultaneously connects the import of oil tank after also connecting main fuel tank oil transfer pump by pipeline.
In described step 3, the fine flour powder ball of becoming reconciled is used to clear up main fuel tank and bearing support.
In described step 3, new-built unit rinses 10-20 days, rinses 2-3 days during major overhaul.
In described step 5, again open the first oil filter flushing, after 2-3 days, sampling detection is carried out to the lubricant oil entering main fuel tank.
In described step 3, while opening the first oil filter, the second oil filter can also be opened, lubricant oil is circulated between main fuel tank and oil tank, realize the flushing to lubricant oil storage and transporting system pipeline.
A kind of rinse-system adopting the purging method of described Turbo-generator Set lubricating oil system, comprise main fuel tank, described main fuel tank connects the filler opening of the first oil filter by oil transport pipeline, the delivery outlet of described first oil filter is connected in parallel three branch roads, article one, branch road is self-loopa pipeline, the import of direct connection main fuel tank, this branch road is provided with valve, article one, branch road connects the inlet tube of main oil pump after connecting oil gun, this branch road is provided with valve, another branch road is connected to main fuel tank on the oil pipe of bearing support import, bearing support internal bearings oil inlet pipe is removed, lubricant oil flows directly to return tube after entering bearing support by oil inlet pipe, bearing cannot be entered, described main fuel tank connects oil tank by the second oil filter, the outlet of oil tank is also by connecting main fuel tank import after pipeline connection oil tank oil transfer pump, and the outlet of main fuel tank simultaneously connects the import of oil tank after also connecting main fuel tank oil transfer pump by pipeline.
Described main fuel tank also connects a main fuel tank emergency oil discharge pipeline, and this pipeline is provided with valve.
The pipeline that described main fuel tank is connected with the filler opening of the first oil filter is provided with valve.
Be provided with the pipeline of oil tank oil transfer pump, and the pipeline being provided with main fuel tank oil transfer pump is all Stainless Steel Tube.Reduce pipe pickling operation, avoid because pickling quality problem causes oil to be polluted.
Described second oil filter adopts board-like oil filter.Board-like oil strain function improves flush efficiency, shortens flushing cycle.
Beneficial effect of the present invention:
Before oil flushing, the oil inlet and oil return pipe of each bearing support is connected with bearing support, after making lubricant oil directly can enter bearing support flushing, has returned main fuel tank.Reduce the temporary measure at each bearing support oil inlet and oil return pipe place, cost-saving, shorten installation period, avoid oily secondary pollution.
Between main fuel tank and oil tank, be connected in series board-like oil filter, realizing lubricant oil reciprocation cycle between two fuel tanks by board-like oil strain function does not affect the first oil filter and normally works.Use the back and forth oil circulation between main fuel tank and oil tank of board-like oil filter, improve flush efficiency, shorten flushing cycle.
Lubricant oil storage and transporting system pipeline adopt Stainless Steel Tube, reduce pipe pickling operation, avoid, because pickling quality problem causes oil to be polluted, fundamentally addressing this problem.
Accompanying drawing explanation
Fig. 1 is system architecture schematic diagram of the present invention;
Wherein, 1. main fuel tank, 2. the first oil filter, 3. main fuel tank emergency oil discharge pipeline, 4. oil tank, 5. board-like oil filter, 6. main fuel tank oil transfer pump, 7. oil tank oil transfer pump.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the invention will be further described.
The purging method of Turbo-generator Set lubricating oil system, comprising:
Step one, is connected the working state of bearing support oil inlet and oil return pipe according to design with bearing support; So just need not connect interim pipe in bearing support outside;
Main fuel tank 1 connects the filler opening of the first oil filter 2 by oil transport pipeline, first oil filter 2 adopts large discharge oil filter (as DHCX-600 type turbine oil system high flux flushing oil filter), the delivery outlet of large discharge oil filter is connected in parallel three branch roads, article one, branch road is self-loopa pipeline, directly receive main fuel tank 1 inner, source is rinsed as fuel tank self-loopa, this branch road is provided with valve, article one, branch road connects the inlet tube of main oil pump after connecting oil gun, as the flushing source of main oil pump oil inlet and oil return pipe, this branch road is provided with valve, another branch road is connected to main fuel tank 1 to each bearing inlet tube, as the flushing source of each bearing oil inlet and oil return pipe, main fuel tank 1 connects oil tank 4 by the second oil filter, second oil filter adopts board-like oil filter 5, as BASY160 template frame pressurized oil filter, the outlet of oil tank 4 also connects the import of oil tank oil transfer pump 7 rear connection main fuel tank 1 by pipeline, and the outlet of main fuel tank 1 simultaneously connects the import of oil tank 4 after also connecting main fuel tank 1 oil transfer pump by pipeline,
Step 2, removed by bearing support internal bearings oil inlet pipe, lubricant oil flows directly to return tube after entering bearing support by oil inlet pipe, cannot enter bearing; Reach and only rinse the object that bearing support does not enter bearing;
Step 3, after inspection confirmation system no problem, is opened large discharge oil filter, is filtered by the filtration of large discharge oil filter to the lubricant oil in system; After this rinse stage, the foreign material of equipment and pipe interior finally can only be deposited on two places, and one be main fuel tank 1, two is each bearing supports; Alternately can open main fuel tank oil transfer pump 6 and oil tank oil transfer pump 7, to realize the flushing of lubricant oil storage and conveyance conduit
Step 4, new-built unit generally rinses 15 days, generally rinses 2-3 days during major overhaul, stops the work of large discharge oil filter afterwards, the lubricant oil of main fuel tank 1 is all poured in oil tank 4 by board-like oil filter 5, uses dough thoroughly to clear up main fuel tank 1 and bearing support;
Step 5, by board-like oil filter 5, the lubricant oil of oil tank 4 is poured in main fuel tank 1, again open large discharge oil filter to rinse, carry out sampling to the lubricant oil entering main fuel tank 1 after rinsing 2-3 days to detect, when testing result reaches NAS7, bearing support interior oil pipeline is recovered, makes lubricant oil enter bearing and rinse; When testing result does not reach NAS7, repeat step 3 to step 5.
In described step one, preferably before bearing support is formally in place, first install the oil inlet pipe and return tube that are connected with bearing support, after preventing bearing support in place, there are the quality problems such as weld bond oil impregnate in this position welding difficulty.
A kind of rinse-system adopting the purging method of described Turbo-generator Set lubricating oil system, as shown in Figure 1, comprise main fuel tank 1, main fuel tank 1 connects the filler opening of the first oil filter 2 by oil transport pipeline, first oil filter 2 adopts large discharge oil filter (as DHCX-600 type turbine oil system high flux flushing oil filter), the delivery outlet of large discharge oil filter is connected in parallel three branch roads, article one, branch road is self-loopa pipeline, directly receive main fuel tank 1 inner, source is rinsed as fuel tank self-loopa, this branch road is provided with valve, article one, branch road connects the inlet tube of main oil pump after connecting oil gun, as the flushing source of main oil pump oil inlet and oil return pipe, this branch road is provided with valve, another branch road is connected to main fuel tank 1 to each bearing inlet tube, as the flushing source of each bearing oil inlet and oil return pipe, main fuel tank 1 connects oil tank 4 by the second oil filter, second oil filter adopts board-like oil filter 5, as BASY160 template frame pressurized oil filter, the outlet of oil tank 4 also connects the import of oil tank oil transfer pump 7 rear connection main fuel tank 1 by pipeline, and the outlet of main fuel tank 1 is simultaneously also by the import of connection oil tank 4 after pipeline connection main fuel tank oil transfer pump 6,
Main fuel tank 1 also connects a main fuel tank emergency oil discharge pipeline 3, and this pipeline is provided with valve, as the oil sources of large discharge oil filter.
Be provided with the pipeline of oil tank oil transfer pump 7, and the pipeline being provided with main fuel tank oil transfer pump 6 is all Stainless Steel Tube.Reduce pipe pickling operation, avoid because pickling quality problem causes oil to be polluted.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technological scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection scope of the present invention.
Claims (10)
1. the purging method of Turbo-generator Set lubricating oil system, is characterized in that, comprises the following steps:
Step one, is connected bearing support with the working state of oil inlet and oil return pipe according to design;
Step 2, removed by bearing support internal bearings oil inlet pipe, lubricant oil flows directly to return tube after entering bearing support by oil inlet pipe, cannot enter bearing, reaches and only rinses the object that bearing support does not enter bearing;
Step 3, opens the first oil filter, is cleared up main fuel tank and bearing support by the filtration of the first oil filter;
Step 4, is stopped the first oil filter work, is all poured in oil tank by the lubricant oil of main fuel tank by the second oil filter, thoroughly cleaning main fuel tank and bearing support;
Step 5, pours in main fuel tank by the second oil filter by the lubricant oil of oil tank, again opens the first oil filter, carries out sampling detect the lubricant oil entering main fuel tank, when testing result reaches NAS7, is recovered by bearing support interior oil pipeline, rinses and terminate; When testing result does not reach NAS7, repeat step 3 to step 5.
2. the purging method of Turbo-generator Set lubricating oil system as claimed in claim 1, it is characterized in that, in described step one, main fuel tank connects the filler opening of the first oil filter by oil transport pipeline, the delivery outlet of described first oil filter is connected in parallel three branch roads, article one, branch road is self-loopa pipeline, the import of direct connection main fuel tank, this branch road is provided with valve, article one, branch road connects the inlet tube of main oil pump after connecting oil gun, this branch road is provided with valve, and another branch road is connected to main fuel tank on the oil pipe of bearing support import; Described main fuel tank connects oil tank by the second oil filter, the outlet of oil tank is also by connecting main fuel tank import after pipeline connection oil tank oil transfer pump, and the outlet of main fuel tank simultaneously connects the import of oil tank after also connecting main fuel tank oil transfer pump by pipeline.
3. the purging method of Turbo-generator Set lubricating oil system as claimed in claim 1, is characterized in that, in described step 3, uses the fine flour powder ball of becoming reconciled to clear up main fuel tank and bearing support.
4. the purging method of Turbo-generator Set lubricating oil system as claimed in claim 1, is characterized in that, in described step 3, new-built unit rinses 10-20 days, rinses 2-3 days during major overhaul.
5. the purging method of Turbo-generator Set lubricating oil system as claimed in claim 1, is characterized in that, in described step 5, again opens the first oil filter and rinses after 2-3 days and carry out sampling detection to the lubricant oil entering main fuel tank.
6. the purging method of Turbo-generator Set lubricating oil system as claimed in claim 1, it is characterized in that, in described step 3, the second oil filter can also be opened while opening the first oil filter, lubricant oil is circulated between main fuel tank and oil tank, realizes the flushing to lubricant oil storage and transporting system pipeline.
7. one kind adopts the rinse-system of Turbo-generator Set lubricating oil system purging method described in claim 1, it is characterized in that, comprise main fuel tank, described main fuel tank connects the filler opening of the first oil filter by oil transport pipeline, the delivery outlet of described first oil filter is connected in parallel three branch roads, article one, branch road is self-loopa pipeline, the import of direct connection main fuel tank, this branch road is provided with valve, article one, branch road connects the inlet tube of main oil pump after connecting oil gun, this branch road is provided with valve, another branch road is connected to main fuel tank on the oil pipe of bearing support import, bearing support internal bearings oil inlet pipe is removed, lubricant oil flows directly to return tube after entering bearing support by oil inlet pipe, bearing cannot be entered, described main fuel tank connects oil tank by the second oil filter, the outlet of oil tank is also by connecting main fuel tank import after pipeline connection oil tank oil transfer pump, and the outlet of main fuel tank simultaneously connects the import of oil tank after also connecting main fuel tank oil transfer pump by pipeline.
8. the rinse-system of Turbo-generator Set lubricating oil system as claimed in claim 7, it is characterized in that, described main fuel tank also connects a main fuel tank emergency oil discharge pipeline, and this pipeline is provided with valve.
9. the rinse-system of Turbo-generator Set lubricating oil system as claimed in claim 7, it is characterized in that, be provided with the pipeline of oil tank oil transfer pump, and the pipeline being provided with main fuel tank oil transfer pump is all Stainless Steel Tube.
10. the rinse-system of Turbo-generator Set lubricating oil system as claimed in claim 7, it is characterized in that, described second oil filter adopts board-like oil filter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510654020.5A CN105179026B (en) | 2015-10-10 | 2015-10-10 | The rinse-system of Turbo-generator Set lubricating oil system and purging method |
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| CN201510654020.5A CN105179026B (en) | 2015-10-10 | 2015-10-10 | The rinse-system of Turbo-generator Set lubricating oil system and purging method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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2015
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| EP0329208A2 (en) * | 1988-01-25 | 1989-08-23 | Neròn srl | Hydraulically driven high-pressure cleaner |
| US5031648A (en) * | 1989-05-16 | 1991-07-16 | Skyline Products Ltd. | Cleaning of mill gears |
| CN201404933Y (en) * | 2009-05-12 | 2010-02-17 | 中国第一冶金建设有限责任公司 | Multifunctional high-volume flusher |
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Non-Patent Citations (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| CN105179026B (en) | 2016-07-27 |
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Inventor after: Gao Hongzeng Inventor after: Gou Haichen Inventor after: Wang Yancheng Inventor after: Liu Huilan Inventor before: Gou Haichen Inventor before: Wang Yancheng Inventor before: Liu Huilan |
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Address after: No.6 building, zone 2, Hanyu financial and business center, hi tech Zone, Jinan City, Shandong Province Patentee after: SEPCO1 ELECTRIC POWER CONSTRUCTION CORPORATION Co.,Ltd. Address before: 250100 No. 244 industrial North Road, Shandong, Ji'nan Patentee before: SEPCO1 ELECTRIC POWER CONSTRUCTION Corp. |