CN103075210B - Method for improving starting speed of seal oil high-pressure back-up gear oil pump of turboset and adopted oiler device - Google Patents

Method for improving starting speed of seal oil high-pressure back-up gear oil pump of turboset and adopted oiler device Download PDF

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Publication number
CN103075210B
CN103075210B CN201210581460.9A CN201210581460A CN103075210B CN 103075210 B CN103075210 B CN 103075210B CN 201210581460 A CN201210581460 A CN 201210581460A CN 103075210 B CN103075210 B CN 103075210B
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CN
China
Prior art keywords
oil
oil pump
high voltage
pump
voltage standby
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201210581460.9A
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Chinese (zh)
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CN103075210A (en
Inventor
廖忠华
覃俊挺
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Datang Guiguan Heshan Power Generation Co Ltd
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Datang Guiguan Heshan Power Generation Co Ltd
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Priority to CN201210581460.9A priority Critical patent/CN103075210B/en
Publication of CN103075210A publication Critical patent/CN103075210A/en
Application granted granted Critical
Publication of CN103075210B publication Critical patent/CN103075210B/en
Expired - Fee Related legal-status Critical Current
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Abstract

The invention discloses a method for improving the starting speed of a seal oil high-pressure back-up gear oil pump of a turboset. According to the method, the inlet end of an oil suction pipe of the seal oil high-pressure back-up gear oil pump, which extends into a main fuel tank of a turbine is provided with an oiler; the oiler is connected with an outlet pipe of an alternating current lubrication pump through an oiling pipe; the oiling pipe is provided with an oiling cut-off valve; when the seal oil high-pressure back-up gear oil pump of the turboset is about to be started, the oiling cut-off valve is opened, pressure oil of the outlet pipe of the alternating current lubrication pump flows to the oiler and is sprayed into the oil suction pipe of the seal oil high-pressure back-up gear oil pump, then the seal oil high-pressure back-up gear oil pump is started, a vent valve is opened, an oil pressure gauge at the outlet of the pump is observed, and when the oil outlet pressure of the pump is more than 1MPa, the vent valve and the oiling cut-off valve are closed. By the method, under the condition of not changing the layout of the pump, the starting speed of the seal oil high-pressure back-up gear oil pump of the turboset is improved.

Description

Improve Turbine seal oil pump and enable the method for speed and the oil gun device of employing
Technical field
The present invention relates to steam turbine technology field, specifically a kind of steam turbine set sealing oil high voltage standby gear oil pump that improves enables the method for speed and the oil gun device of employing.
Background technique
670MW steam turbine set sealing oil high voltage standby gear oil pump be used in sealing oil system provide sealing hydrogen oil for subsequent use and in start process, provide pressure oil to main frame adjusting security system.This pump design and installation is on main fuel tank, and oil pump center (two gear line centers) has 1.5 meters to tank-level perpendicular distance, after this height difference makes oil pump need start 10 minutes to set up enough vacuum, just can get pressure oil.And when sealing oil system links sealing oil high voltage standby pump start because sealing oil forces down, this pump is needed to provide high voltage standby oil to seal hydrogen in time, prevent hydrogen from leaking, and this pump self-starting is to pressure oil output overlong time, just there is response after 10 minutes, sealing oil system Security can not be met.The conventional method of removing a hidden danger is that pump is arranged on main fuel tank inside, reduces the setting height(from bottom) of pump, thus reaches shortening oil pump center to tank-level perpendicular distance, but this kind of mounting type, cannot repair and maintenance be carried out in unit operation.
Summary of the invention
Under technical problem to be solved by this invention is to provide a kind of deployment scenarios not changing pump, improve the method that speed enabled by steam turbine set sealing oil high voltage standby gear oil pump and the oil gun device adopted.
The present invention solves the problems of the technologies described above with following technological scheme:
The present invention improves the method that speed enabled by steam turbine set sealing oil high voltage standby gear oil pump, its operation is: arrange an oil gun 4 stretching into sealing oil high voltage standby gear oil pump fuel sucking pipe 5 entrance point in steam turbine main fuel tank 3, this oil gun 4 connects AC Lub oil pump outer pipe 13 by oil filler pipe 2, oil filler pipe 2 is provided with oiling stop valve 1; When enabling steam turbine set sealing oil high voltage standby gear oil pump 6, first open oiling stop valve 1, the pressure oil of AC Lub oil pump outer pipe is allowed to lead to oil gun 4 and to be ejected in sealing oil high voltage standby gear oil pump fuel sucking pipe 5, then sealing oil high voltage standby gear oil pump 6 is started, and open outlet valve 7, observe this pump discharge oil pressure table 8 simultaneously, 1MPa is greater than when this pumps oil pressure, outlet valve 7 and oiling stop valve 1 can be closed, thus complete steam turbine set sealing oil high voltage standby gear oil pump fast enable work.
The present invention improves the oil gun device that steam turbine set sealing oil high voltage standby gear oil pump speed of enabling adopts, it is by upper cover plate 9, lower cover plate 12, cylinder 10, the nozzle 11 that is circular layout is welded, the nozzle 11 that is circular layout is welded on the lower end of sealing oil high voltage standby gear oil pump fuel sucking pipe 5, upper cover plate 9, lower cover plate 12 is welded on upper outside and the lower outside of the nozzle 11 that is circular layout respectively, cylinder 10 is welded between upper cover plate 9 and lower cover plate 12, cylinder 10 and the annular cavity 14 being provided with between nozzle 11 and being connected with sealing oil high voltage standby gear oil pump fuel sucking pipe 5 that is circular layout, cylinder 10 has the through hole 15 that the oil filler pipe 2 that is connected with AC Lub oil pump outer pipe accesses.
Use the inventive method, under the deployment scenarios not changing pump, steam turbine set sealing oil high voltage standby gear oil pump can be improved and enable speed.
Accompanying drawing explanation
Fig. 1 is the structural representation of oil gun device of the present invention.
Oil gun device of the present invention is arranged on the schematic diagram after high voltage standby oilgear oil pump by Fig. 2.
In figure: 1-oiling stop valve, 2-oil filler pipe, 3-steam turbine main fuel tank, 4-oil gun, 5-sealing oil high voltage standby gear oil pump fuel sucking pipe, 6-sealing oil high voltage standby gear oil pump, 7-outlet valve, 8-outlet oil pressure power table, 9-upper cover plate, 10-cylinder, 11-be circular layout nozzle, 12-lower cover plate, 13-AC Lub oil pump outer pipe, 14-annular cavity, 15-through hole.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, the present invention improve steam turbine set sealing oil high voltage standby gear oil pump enable speed adopt oil gun 4 be welded by upper cover plate 9, lower cover plate 12, cylinder 10, the nozzle 11 that is circular layout, the nozzle 11 that is circular layout is welded on sealing oil high voltage standby gear oil pump fuel sucking pipe 5 bottom, be circular layout in nozzle 11 and be provided with the through hole consistent with fuel sucking pipe 5 aperture, to retain original oil absorbing effect; Upper cover plate 9, lower cover plate 12 are welded on upper outside and the lower outside of the nozzle 11 that is circular layout respectively, cylinder 10 is welded between upper cover plate 9 and lower cover plate 12, cylinder 10 and the annular cavity 14 being provided with between nozzle 11 and being connected with sealing oil high voltage standby gear oil pump fuel sucking pipe 5 that is circular layout, cylinder 10 has the through hole 15 accessed for oil filler pipe 2, oil filler pipe 2 is connected with AC Lub oil pump outer pipe 13.The described nozzle 11 that is circular layout is evenly equipped with 8 spray orifices tilting to spray from bottom to top, by spray orifice, annular cavity 14 is connected with sealing oil high voltage standby gear oil pump fuel sucking pipe 5.
Oil gun 4 is arranged on the schematic diagram on 670MW steam turbine set sealing oil high voltage standby gear oil pump by Fig. 2, its structure is: stretch into sealing oil high voltage standby gear oil pump fuel sucking pipe 5 entrance point in steam turbine main fuel tank 3 install oil gun 4, this oil gun 4 connects AC Lub oil pump outer pipe 13 by oil filler pipe 2, makes the pressure oil of AC Lub oil pump cause the annular cavity 14 of oil gun.Oil filler pipe 2 is provided with oiling stop valve 1, is used as to turn on and off oil circuit.
When enabling steam turbine set sealing oil high voltage standby gear oil pump 6, first open oiling stop valve 1, the pressure oil of AC Lub oil pump outer pipe is allowed to lead to oil gun 4 and to be ejected in sealing oil high voltage standby gear oil pump fuel sucking pipe 5, then sealing oil high voltage standby gear oil pump 6 is started, and open outlet valve 7, observe this pump discharge oil pressure table 8 simultaneously, 1MPa is greater than when this pumps oil pressure, outlet valve 7 and oiling stop valve 1 can be closed, thus complete steam turbine set sealing oil high voltage standby gear oil pump fast enable work.
The working principle of the inventive method is as follows:
When entering into after annular cavity 14 from AC Lub oil pump outer pipe 13 pressure oil out through oil filler pipe 2, again when 8 spray orifices eject from the bottom to top, 8 strands of jet oil carried around fuel sucking pipe 5 and in steam turbine main fuel tank 5 are inhaled together above fuel sucking pipe 5, make to be filled with oil in fuel sucking pipe, this effect is equivalent to raise fuel tank liquid level height, shorten tank-level to high pressure sealing equipment gear oil pump perpendicular distance, high pressure emergency bearing oil pump is once start, inlet tube air can be discharged fast, set up vacuum rapidly, get pressure oil fast.

Claims (2)

1. one kind is improved the method that speed enabled by Turbine seal oil pump, it is characterized in that, its operation is: arrange an oil gun (4) stretching into sealing oil high voltage standby gear oil pump fuel sucking pipe (5) entrance point in steam turbine main fuel tank (3), this oil gun (4) connects AC Lub oil pump outer pipe (13) by oil filler pipe (2), oil filler pipe (2) is provided with oiling stop valve (1), when enabling steam turbine set sealing oil high voltage standby gear oil pump (6), first open oiling stop valve (1), the pressure oil of AC Lub oil pump outer pipe is allowed to lead to oil gun (4) and to be ejected in sealing oil high voltage standby gear oil pump fuel sucking pipe (5), then sealing oil high voltage standby is started with gear oil pump (6), and open outlet valve (7), observe the outlet oil pressure power table (8) of sealing oil high voltage standby gear oil pump (6) simultaneously, when the oil pressure that goes out of sealing oil high voltage standby gear oil pump (6) is greater than 1MPa, outlet valve (7) and oiling stop valve (1) can be closed, thus complete steam turbine set sealing oil high voltage standby gear oil pump fast enable work.
2. implement the claims the oil gun device improving method that Turbine seal oil pump enables speed described in 1 and adopt, it is characterized in that, this oil gun device is arranged in steam turbine main fuel tank (3), it is by upper cover plate (9), lower cover plate (12), cylinder (10), the nozzle (11) that is circular layout is welded, the nozzle (11) that is circular layout is welded on the lower end of sealing oil high voltage standby gear oil pump fuel sucking pipe (5), be circular layout in nozzle (11) and be provided with the through hole consistent with fuel sucking pipe (5) aperture, upper cover plate (9), lower cover plate (12) is welded on upper side and the lower outside of the nozzle that is circular layout (11) respectively, cylinder (10) is welded between upper cover plate (9) and lower cover plate (12), the annular cavity (14) be connected with sealing oil high voltage standby gear oil pump fuel sucking pipe (5) is provided with between cylinder (10) with the nozzle that is circular layout (11), cylinder (10) has the through hole (15) that the oil filler pipe (2) that is connected with AC Lub oil pump outer pipe (13) accesses, be circular layout on nozzle (11) and be evenly equipped with 8 spray orifices tilting to spray from bottom to top, by spray orifice, annular cavity (14) is connected with sealing oil high voltage standby gear oil pump fuel sucking pipe (5).
CN201210581460.9A 2012-12-27 2012-12-27 Method for improving starting speed of seal oil high-pressure back-up gear oil pump of turboset and adopted oiler device Expired - Fee Related CN103075210B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210581460.9A CN103075210B (en) 2012-12-27 2012-12-27 Method for improving starting speed of seal oil high-pressure back-up gear oil pump of turboset and adopted oiler device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210581460.9A CN103075210B (en) 2012-12-27 2012-12-27 Method for improving starting speed of seal oil high-pressure back-up gear oil pump of turboset and adopted oiler device

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CN103075210A CN103075210A (en) 2013-05-01
CN103075210B true CN103075210B (en) 2015-02-18

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103470378B (en) * 2013-09-18 2016-03-23 深圳市广前电力有限公司 Improve method and the device of generator set lubricating oil system fuel feeding reliability
CN109616287B (en) * 2018-12-06 2021-02-19 国网山东省电力公司寿光市供电公司 Supplementary inflatable intelligent tanker aircraft

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1061409A (en) * 1996-08-22 1998-03-03 Mitsubishi Heavy Ind Ltd Turbine oil cooling installation for power station having cooling tower
JP2000161015A (en) * 1998-11-19 2000-06-13 Takeshi Hatanaka Closed-cycle power system
DE10019352A1 (en) * 1999-11-29 2001-06-07 Juergen Heinig Gas turbine arrangement for ship with hybrid drive; has turbine stabilizer, pulse mixture nozzle at end of exhaust pipe connected to fuel water pump and water injectors spaced along exhaust pipe
CN2410421Y (en) * 2000-01-24 2000-12-13 吴伯南 Switching device for main oil pump of steam turbine
GB0218849D0 (en) * 2002-08-14 2002-09-25 Rolls Royce Plc Lubrication system for gas turbine engine
CN102003226A (en) * 2010-12-13 2011-04-06 上海电气电站设备有限公司 Turbine bearing lubricating oil supply system
CN102408051A (en) * 2011-08-16 2012-04-11 铁法煤业(集团)有限责任公司晓南矿 Automatic oil injection device using vertical shaft cage path rope
CN203022829U (en) * 2012-12-27 2013-06-26 大唐桂冠合山发电有限公司 Oil injector device for increasing start speed of sealing oil high-pressure standby gear oil pump of turboset

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