CN205591970U - A device for shortening send out motor seal oil circulating flushing time - Google Patents
A device for shortening send out motor seal oil circulating flushing time Download PDFInfo
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- CN205591970U CN205591970U CN201620394578.4U CN201620394578U CN205591970U CN 205591970 U CN205591970 U CN 205591970U CN 201620394578 U CN201620394578 U CN 201620394578U CN 205591970 U CN205591970 U CN 205591970U
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- oil
- electromotor
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- generator
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Abstract
The utility model relates to a device for shortening send out motor seal oil circulating flushing time, including oil filter and the connecting line of sending out motor seal oil system and connecting rather than relevant position, characterized in that adopts a main control valve and three branch valves one -tenth valve distributor, the entry of oil filter is connected with the drain of the empty oil sump tank that inclines of generator through wired hose, the export of oil filter is connected to the entry of main control valve through the main line, the exit end of main control valve is connected to three branch valve through a cross branch three routes, the export of three branch valve is respectively through encourage sealed tile unsteady oil feed interface end or vapour end and lower part end cover on of wired hose from the generator, sealed oily hydrogen side oil feed interface, the empty oil feed interface that inclines of sealed oil is connected. It can simultaneously or before, accomplish the work of washing to generator end cover inner sealing oil part sending out the outside pipeline endless of motor seal oil, installation period of the generator that significantly reduces.
Description
Technical field
This utility model relates to steam turbine generator and installs, in the most hydrogen-cooled set generator installation procedure
A kind of device for shortening the electromotor Seal Oil circulation flushing time.
Background technology
The installation procedure of tradition hydrogen cooled generator is: basis is checked and accepted and parallels (spacer) grinds,
Platen is in place, stator centering in place and preliminary, end cap pre-assembled, and bearing shell grinds, and rotor worn by electromotor,
The air gap and magnetic force center adjust to be measured, and carries out sealing bearing bush installation, end cap after Seal Oil circulation is qualified
Close and oil catch is installed.This following period of time of electromotor Seal Oil circulation, the erector of electromotor
Work is stagnation, and Seal Oil circulation is also limited by main frame lubrication oil circulation, in order to reduce generating
The installation period of machine, coordinates the installation progress of unit and is rapidly achieved a whole set of entry condition, how to shorten
Electromotor Seal Oil circulation time becomes crucial.
In prior art, the circulation of electromotor Seal Oil relies primarily in steam-turbine lubrication oil circulation.Currently,
The oil circulation main point of three phases of fired power generating unit steam-turbine lubrication is carried out, and the first stage is oil outer pipeline
Cycle stage, i.e. drive with big flow apparatus, each bearing and main oil pump oil-feed are carried out short circuit, punching
Wash all oil-system pipelines；Second stage, will all pipelines and bearing housing for rinsing the bearing housing stage
Connecting, do not cover watt, a lower watt of watt mouth twines calico, carries out the flushing work of low brass and bearing housing；
Phase III is the lubricating oil formal cycle stage, and starts formal oil pump, enters whole lubricating oil system
Row rinses, and attaches and debugs the systems such as jacking oil.The circulation of electromotor Seal Oil is typically established at profit
The second stage of lubricating oil circulation is carried out before terminating to start to the phase III.When turbo-engine lube oil
In time reaching the degree more cleaned, leakproof fuel cell oil-feed, by the vapour of Seal Oil, encourage two ends oil inlet and oil return
Carrying out short circuit, start empty, hydrogen-side seal oil pump, be rinsed pipeline respectively, this stage is often
Need about 7-10 days.Oil quality of lubricant qualified, it is meant that the expansion of thermal power plant's igniting blowpipe work,
And Seal Oil circulation completing plus sealing bearing bush set-up time, end cap closing and electromotor residue work,
The time of at least 20-25 days will have been spent.The electromotor the whole series pressure decay test immediately gone down and every examination
That tests completes, and at least needs the time of more than one week to complete.In other words, from igniting blowpipe to the whole series
Startup stage at least need time of more than one month, this has badly influenced being installed into of whole unit
Degree and construction period.If can start with, in electromotor Seal Oil exterior tube from the circulation of electromotor Seal Oil
While the circulation of road or before, complete the flushing work of generator's cover inner sealing oil part, will be big
The big installation period reducing electromotor.
Summary of the invention
The purpose of this utility model is that proposition is a kind of for shortening the electromotor Seal Oil circulation flushing time
Device, it can electromotor Seal Oil exterior line circulate while or before, complete generator end
The flushing work of lid inner sealing oil part, greatly reduces the installation period of electromotor.
The technical solution adopted in the utility model is: one is used for shortening electromotor Seal Oil circulation flushing
The device of time, the oil filter connected including generator sealing oil system and position associated therewith and connection
Pipeline, it is characterised in that use a main control valve and three branch valve composition valve distributor, described filter
The entrance of oil machine is connected with the sewage draining exit of electromotor sky side oil sump tank by wired hose, going out of oil filter
Mouth is connected to the entrance of main control valve by main line, and the port of export of main control valve passes through four reduction of fractions to a common denominator three tunnels
Being connected to three branch valve, the outlet of three branch valve encourages end by wired hose from electromotor respectively
Or sealing bearing bush floating oil-feed interface in vapour end and lower end cap, Seal Oil hydrogen side oil-feed interface, sealing
The empty side oil-feed interface of oil is connected.
It is provided with movable supporting frame below described valve distributor.
Under the liquidometer of the hydrogen side oil return control chamber in described generator sealing oil system, square flange uses band
Flange, this flange-interface is connected to oil filter by wired hose, by oil filter by the oil return of hydrogen side
Trapped fuel in control chamber is withdrawn into generator main sump.
The beneficial effects of the utility model and feature be: in hydrogen-cooled set generator installation process,
Carry out electromotor Seal Oil exterior line circulation while or before, use an oil filter from electromotor
The sewage draining exit of empty side oil return control chamber draws oil sources, then it is (main to connect valve distributor by oil filter outlet
Three branching valves that pipeline is connected) mode, encourage the end sealing bearing bush to electromotor from electromotor respectively
Floating oil-feed, the side oil-feed of Seal Oil hydrogen, the end cap portion of Seal Oil sky side oil-feed are rinsed.Sending out
Motor is encouraged after holding flushing to complete, and is rinsed electromotor vapour end by same operation mode, until oily
Qualified, reach to install in advance the requirement of sealing bearing bush.This technical scheme will greatly reduce electromotor peace
The dress duration, the duration during i.e. igniting blowpipe starts to the whole series shortens to can complete for about 15 days.
Accompanying drawing explanation
Fig. 1 is the structural representation of one of this utility model embodiment.
In figure, label represents respectively: 1-oil filter, 2-main line, 3-main control valve, 4-four-way, and 5-divides
Propping up valve, 6-branch valve, 7-branch valve, 8-wired hose, 9-traversing carriage, A-connects empty side oil return
Case sewage draining exit, B-is to empty side oil-feed interface, and C-is to hydrogen side oil-feed interface, and D-to sealing bearing bush floats oil-feed
Interface.
Detailed description of the invention
As it is shown in figure 1, this utility model includes hydrogen-cooled set generator sealing oil system and associated therewith
The oil filter 1 of position connection and connecting line.It is by a main control valve 3 and three branch valve 5,6,7
Composition valve distributor, the entrance of oil filter 1 is by the row of wired hose with electromotor sky side oil sump tank
Dirty mouth connects (in figure shown in arrow A), and the outlet of oil filter 1 is connected to main control valve by main line 2
The entrance of 3, the port of export of main control valve 3 by 4 point of three road of a four-way be connected to three branch valve 5,
6,7, the outlet of three branch valve 5,6,7 is held or vapour from encouraging of electromotor by wired hose respectively
End and the sealing bearing bush floating oil-feed interface in lower end cap, Seal Oil hydrogen side oil-feed interface, Seal Oil sky
Side oil-feed interface is connected (as shown in D, C, B arrow in figure).The lower section of described valve distributor sets
There is movable supporting frame 9, it is convenient to mobile and connect, in order to this device is respectively at the encouraging of electromotor, vapour
Two ends use.
Under the liquidometer of the hydrogen side oil return control chamber in described generator sealing oil system, square flange uses band
Flange, this flange-interface is connected to oil filter by wired hose, by oil filter by the oil return of hydrogen side
Trapped fuel in control chamber is withdrawn into generator main sump.
Application of the present utility model, the 350MW set generator Seal Oil produced with Shanghai electromotor factory
As a example by system, this sealing oil system uses double fluid dicyclic sealing bearing bush.Sealing oil system is one
Fairly perfect oil supply system, is divided into hydrogen side oil circuit and empty side two parts of oil circuit.Hydrogen-side seal oil road:
Hydrogen-side seal oil pump obtains oil sources in hydrogen side oil return control chamber, a part through oil cooler, oil strainer,
Inject the hydrogen side of sealing bearing bush after balanced valve, pass through choke valve to hydrogen side on oil pump side equipped with bypass conduit
Seal Oil carries out coarse adjustment.Hydrogen-side seal oil oil pressure carries out fine tuning by balanced valve, and is allowed to from motion tracking
Empty side oil pressure, to reach essentially identical level；Empty side seal oil pipe line: empty side seal oil pump is from sky
Obtaining oil sources in the oil sump tank of side, a part injects sealing bearing bush after oil cooler, oil strainer, balanced valve
Empty side, another part flow back into the oil-feed side of oil pump by main valve for pressure difference, by pressure-difference valve will
The oil pressure that seals of sealing bearing bush sky side remains in the level exceeding electromotor gas pressure 84kPa.
This system sealing oil oil-feed is mainly made up of 3 interfaces: the side oil-feed of Seal Oil hydrogen, Seal Oil sky side are entered
Oil, sealing bearing bush floating oil-feed.Follow owing to the circulation of electromotor Seal Oil is largely determined by turbo-engine lube
Ring and station service are by factors such as electricity, and these factors cannot pass through manual control, therefore, and this
The technical scheme of utility model mainly by by after electricity, sealing oil pump run duration or before this
The section time, simple, practical Seal Oil circulation flushing technical measures of employing.The present embodiment
Specific practice is:
Use a main control valve 3 (DN50), three branch valve 5,6,7 (DN20, pressure 1.0MPa
) make a valve distributor, with main control valve 3 as main line, by a homemade welding
Four-way 4 separates three tunnels, is coupled with three branch valve, respectively stretches out a segment pipe, and all pipelines use
Stainless steel pipes, welding procedure is identical with formal pipeline, in installation process, channel interior is carried out ethanol
Cleaning (with good conditionsi can carry out high-temperature steam purging), it is ensured that channel interior cleans.Valve distributor
It is arranged on moveable support 9, forms an overall valve operation platform, in order to permissible during use
At electromotor vapour, encourage two ends and use respectively.
Use the format of a relatively high power or the oil filter 1 of other forms as driving, use steel wire
Flexible pipe draws oil sources from electromotor sky side oil return control chamber sewage draining exit, is connected to oil filter 1 entrance, oil strain
Machine 1 outlet connects main control valve 3 entrance of valve distributor main line 2, and three branching valve outlets are respectively
With wired hose and the sealing bearing bush floating oil-feed interface in electromotor lower end cap, the side oil-feed of Seal Oil hydrogen
Interface, Seal Oil sky side oil-feed interface are connected.
In the second stage of Seal Oil circulation, the biggest flow apparatus is opened, by valve distributor
Being positioned over electromotor and encourage end, the connection of each wired hose puts in place, opens electromotor sky side oil return control chamber row
Dirty mouth, opens the main control valve 3 on main line 2, starts oil filter 1, respectively to sealing bearing bush floating oil-feed,
The side oil-feed of Seal Oil hydrogen, the end cap portion of Seal Oil sky side oil-feed is rinsed, equally, question generator
After encouraging end flushing, valve distributor is moved to electromotor vapour end, use same operation mode to enter
Row rinses, until oil is qualified, reaches to install in advance the purpose of sealing bearing bush.
It should be noted that owing to electromotor Seal Oil hydrogen side oil return returns to hydrogen side oil return control chamber, close
Envelope watt floating oil-feed and empty side oil return return to sky side oil return control chamber.Return to the oil of sky side oil return control chamber
Lubrication oil circulation can be passed through or sucked the purpose reaching oil circulation by oil filter.But Seal Oil hydrogen
After side oil return returns to hydrogen side oil return control chamber, owing to Seal Oil hydrogen side oil pump is not opened, it is impossible to oil is discharged,
The full oil of hydrogen side oil return control chamber may be caused, even with the unrestrained motor of setting out of hydrogen side oil return pipe.So,
The oil level of monitoring hydrogen side oil return control chamber, the trapped fuel discharging hydrogen side oil return control chamber in time is that this scheme is complete
The key become.Completely enclose, without row owing to electromotor Seal Oil controls oil return control chamber in hydrogen side on device
Stain, this programme changes square flange under the liquidometer of hydrogen side oil return control chamber into a same size band and connects
The flange of mouth, separately connects oil filter 1 with wired hose, trapped fuel in hydrogen side oil return control chamber is extracted into main frame
In fuel tank, the problem solving the full oil of hydrogen side oil return control chamber.In flushing process, special messenger is sent to monitor hydrogen
Side oil return control chamber oil level and electromotor lower end cap oil-feed situation, until completing to rinse.
This programme uses the common oil filter that a power is bigger, power of motor 5KW, substantially can reach punching
Wash requirement, as used more powerful flushing device, bigger flow can be produced, developing result and
Efficiency will be higher.
Claims (3)
1., for shortening the device of electromotor Seal Oil circulation flushing time, seal including electromotor
Oil filter that oil system and position associated therewith connect and connecting line, it is characterised in that use a master
Control valve (3) and three branch valve (5,6,7) composition valve distributor, described oil filter (1)
Entrance is connected with the sewage draining exit of electromotor sky side oil sump tank by wired hose, the outlet of oil filter (1)
Be connected to the entrance of main control valve (3) by main line (2), the port of export of main control valve (3) passes through one
Individual four-way (4) Fen Sanlu is connected to three branch valve (5,6,7), three branch valve (5,6,7)
Outlet respectively by wired hose (8) from the sealing encouraged end or vapour end and lower end cap of electromotor
Watt floating oil-feed interface, Seal Oil hydrogen side oil-feed interface, Seal Oil sky side oil-feed interface are connected.
Dress for shortening the electromotor Seal Oil circulation flushing time the most according to claim 1
Put, it is characterised in that below described valve distributor, be provided with movable supporting frame (9).
Device for shortening the electromotor Seal Oil circulation flushing time the most according to claim 1,
It is characterized in that square flange under the liquidometer of the hydrogen side oil return control chamber in described generator sealing oil system
Using band flange, flange-interface is connected to oil filter (1) by wired hose, by oil filter (1)
Trapped fuel in hydrogen side oil return control chamber is withdrawn into generator main sump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620394578.4U CN205591970U (en) | 2016-05-05 | 2016-05-05 | A device for shortening send out motor seal oil circulating flushing time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620394578.4U CN205591970U (en) | 2016-05-05 | 2016-05-05 | A device for shortening send out motor seal oil circulating flushing time |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205591970U true CN205591970U (en) | 2016-09-21 |
Family
ID=56933757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620394578.4U Active CN205591970U (en) | 2016-05-05 | 2016-05-05 | A device for shortening send out motor seal oil circulating flushing time |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205591970U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110153112A (en) * | 2019-05-13 | 2019-08-23 | 中广核核电运营有限公司 | Steam turbine for nuclear power station adjusts Oil System Flushing method |
| CN114669560A (en) * | 2022-03-24 | 2022-06-28 | 三门核电有限公司 | Washing unit for generator sealing oil system |
-
2016
- 2016-05-05 CN CN201620394578.4U patent/CN205591970U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110153112A (en) * | 2019-05-13 | 2019-08-23 | 中广核核电运营有限公司 | Steam turbine for nuclear power station adjusts Oil System Flushing method |
| CN114669560A (en) * | 2022-03-24 | 2022-06-28 | 三门核电有限公司 | Washing unit for generator sealing oil system |
| CN114669560B (en) * | 2022-03-24 | 2023-08-15 | 三门核电有限公司 | Flushing device for sealing oil system of generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 430030 No. 38 Hangkong Road, Jianghan District, Wuhan City, Hubei Province Patentee after: China Power Construction Hubei Electric Power Construction Co.,Ltd. Address before: 430030 No. 38 Hangkong Road, Jianghan District, Wuhan City, Hubei Province Patentee before: HYDRO ELECTRIC POWER SYSTEM ENGINEERING CO. |
|
| CP01 | Change in the name or title of a patent holder |