CN118008580A - Auxiliary engine lubricating oil system and gas turbine generator set with same - Google Patents
Auxiliary engine lubricating oil system and gas turbine generator set with same Download PDFInfo
- Publication number
- CN118008580A CN118008580A CN202410252403.9A CN202410252403A CN118008580A CN 118008580 A CN118008580 A CN 118008580A CN 202410252403 A CN202410252403 A CN 202410252403A CN 118008580 A CN118008580 A CN 118008580A
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- lubricating oil
- oil
- flow path
- auxiliary
- emergency
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- 239000010687 lubricating oil Substances 0.000 title claims abstract description 299
- 239000003921 oil Substances 0.000 claims abstract description 226
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 34
- 238000001914 filtration Methods 0.000 claims abstract description 13
- 230000001105 regulatory effect Effects 0.000 claims description 29
- 238000001816 cooling Methods 0.000 claims description 11
- 238000013461 design Methods 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000005461 lubrication Methods 0.000 abstract description 3
- 230000001050 lubricating effect Effects 0.000 description 21
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009837 dry grinding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/06—Arrangements of bearings; Lubricating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses an auxiliary engine lubricating oil system and a gas turbine generator set with the same, comprising: the oil inlet ends of the oil tank, the auxiliary oil flow path, the main oil flow path and the emergency oil flow path are respectively connected with the oil tank, and the oil outlet sections of the oil tank, the main oil flow path and the emergency oil flow path are overlapped to respectively supply oil to the generator, the speed reducer, the starting system and the pressure oil system. The auxiliary lubricating oil flow path is also used for starting oil supply after the machine set starts to work until the machine set reaches the rated rotation speed and the machine set stops and decelerates. The main lubricating oil flow path is also used for starting oil supply driven by the speed reducer after the rotation speed of the unit is increased. The emergency lubricating oil flow path is also used for filtering the conveyed lubricating oil and starting the machine set from the beginning of the working of the machine set to the successful ignition of the machine set so as to be matched with the auxiliary lubricating oil flow path for oil supply. The system of the invention greatly reduces the number of the whole unit system and equipment while realizing oil supply at a plurality of lubrication points, simplifies the design of the lubrication system, further reduces the production cost and is convenient for later maintenance and control.
Description
Technical Field
The invention relates to the field of gas turbines, in particular to an auxiliary lubricating oil system. In addition, the invention also relates to a gas turbine generator set comprising the auxiliary lubricating oil system.
Background
At present, an auxiliary engine lubricating oil system applied to a gas turbine generator set works as a single oil pump, the system mainly supplies oil for a generator or supplies oil in high pressure and low pressure, and the oil is supplied for a top shaft and a bearing respectively, so that the system is simple; in addition, the fuel engine lubricating oil system of the unit is also provided with three oil pumps, and normally the on-board pump and the auxiliary lubricating oil pump are used for switching oil supply according to different working conditions, and the emergency pump can be put into use only when the on-board pump and the auxiliary lubricating oil pump are in fault. The existing auxiliary lubricating oil system has the following defects:
1. The existing generator lubricating oil system is simple in arrangement, single in lubricating point and high in single oil pump working failure rate, and the system reliability mainly depends on the quality of an oil pump, so that the system reliability cannot be guaranteed;
2. The lubricating oil system of the fuel engine adopts an oil supply mode of three oil pumps, but because the lubricating points are mainly the bearings of the fuel engine and the oil quantity is determined, the start and stop of the on-board pump and the auxiliary lubricating oil pump are only controlled to switch under different working conditions, and more complex lubricating systems such as oil for a plurality of lubricating points can not be realized.
Disclosure of Invention
The invention provides an auxiliary engine lubricating oil system and a gas turbine generator set with the same, and aims to solve the technical problems that an existing gas turbine lubricating oil system is single in lubricating point, cannot guarantee the working reliability of the system, cannot realize more complex lubrication of oil used for a plurality of lubricating points and the like.
The technical scheme adopted by the invention is as follows:
An auxiliary lubricating oil system comprising: the auxiliary lubricating oil flow path, the main lubricating oil flow path and the emergency lubricating oil flow path are integrated on a lubricating oil tank cover of the lubricating oil tank, oil inlet ends of the auxiliary lubricating oil flow path, the main lubricating oil flow path and the emergency lubricating oil flow path are respectively connected with the lubricating oil tank, and oil outlet sections of the auxiliary lubricating oil flow path, the main lubricating oil flow path and the emergency lubricating oil flow path are overlapped so as to respectively supply oil to a generator, a speed reducer, a starting system and a pressure oil system of a gas turbine generator set; the auxiliary lubricating oil flow path is also used for cooling, pressure regulating and filtering the conveyed lubricating oil and starting oil supply after the machine set starts to work until the machine set reaches the rated rotation speed and the machine set stops and decelerates; the main lubricating oil flow path is also used for cooling, regulating pressure and filtering the conveyed lubricating oil and is used for starting oil supply by a speed reducer after the rotating speed of the unit is increased; the emergency lubricating oil flow path is also used for filtering the conveyed lubricating oil and starting the machine set from the beginning of the working of the machine set to the successful ignition of the machine set so as to be matched with the auxiliary lubricating oil flow path for oil supply.
Further, the auxiliary lubricating oil flow path comprises an auxiliary lubricating oil pump motor fixed on the oil tank cover, an auxiliary lubricating oil pump which is positioned in the lubricating oil tank and is connected with the auxiliary lubricating oil pump motor, a first one-way valve, a lubricating oil cooler for cooling lubricating oil and a duplex filter for filtering the lubricating oil; the auxiliary lubricating oil pump, the first one-way valve, the lubricating oil cooler and the duplex filter are sequentially communicated along the lubricating oil flowing direction through the lubricating oil pipe; the outlet end of the duplex filter is also connected with an oil pipe, and the generator, the speed reducer, the starting system and the pressure oil system are respectively communicated with the oil pipe at the outlet end of the duplex filter.
Further, the main lubricating oil flow path comprises an on-board pump, a second one-way valve, a lubricating oil cooler and a duplex filter which are connected with the speed reducer; the oil inlet end of the airborne pump is connected with the lubricating oil tank through a lubricating oil pipe; the machine-mounted pump, the second one-way valve and the lubricating oil cooler are sequentially communicated along the flowing direction of the lubricating oil through the lubricating oil pipe.
Further, the main lubricating oil flow path further comprises a lubricating oil pipe, the oil inlet end of the lubricating oil pipe is connected with the lubricating oil pipe of the oil outlet end of the second one-way valve, and the oil outlet end of the lubricating oil pipe faces the airborne pump so as to be used for guiding oil to carry out oiling on the airborne pump.
Further, the emergency lubricating oil flow path comprises an emergency oil pump motor fixed on the oil tank cover, an emergency lubricating oil pump which is positioned in the lubricating oil tank and is connected with the emergency oil pump motor, a third one-way valve and a duplex filter; the emergency lubricating oil pump, the third one-way valve and the duplex filter are sequentially communicated along the lubricating oil flowing direction through the lubricating oil pipe.
Further, the auxiliary lubricating oil system also comprises an adapter box for converting direct current into alternating current; the switching box is electrically connected with the emergency oil pump motor.
Further, the auxiliary lubricating oil system also comprises a first-stage pressure regulating valve for carrying out first-stage pressure regulation on the lubricating oil and a second-stage pressure regulating valve for carrying out second-stage pressure regulation on the lubricating oil; the first-stage pressure regulating valve is arranged in an oil pipe pipeline between the second one-way valve and the oil cooler; the outlet end of the duplex filter is also connected with an oil pipe, the outlet end of the oil pipe is connected with a three-way valve, a second valve port of the three-way valve is connected with an oil supply pipe, oil inlet pipes of the generator, the speed reducer, the starting system and the pressure oil system are respectively connected with the oil supply pipe, and a third valve port of the three-way valve is connected with a second-stage pressure regulating valve.
Further, a manual valve, a flowmeter and a pressure gauge are sequentially arranged in the oil inlet pipe of the generator.
Further, the auxiliary lubricating oil system further comprises a plurality of electric heaters fixed on the oil tank cover, and the electric heaters extend into the lubricating oil tank to heat lubricating oil.
According to another aspect of the present invention, there is also provided a gas turbine generator set including: the auxiliary engine lubricating oil system, the generator, the speed reducer, the starting system and the pressure oil system are arranged in the lubricating oil tank, and the speed reducer is connected with the generator; the auxiliary engine lubricating oil system comprises an auxiliary lubricating oil flow path, a main lubricating oil flow path and an emergency lubricating oil flow path; the oil inlet ends of the auxiliary lubricating oil flow path, the main lubricating oil flow path and the emergency lubricating oil flow path are respectively connected with a lubricating oil tank, and the oil outlet sections of the auxiliary lubricating oil flow path, the main lubricating oil flow path and the emergency lubricating oil flow path are respectively connected with a generator, a speed reducer, a starting system and a pressure oil system after being overlapped.
The invention has the following beneficial effects:
The invention provides an auxiliary engine lubricating oil system applied to a gas turbine generator set, which comprises a lubricating oil tank, an auxiliary lubricating oil flow path, a main lubricating oil flow path, an emergency lubricating oil flow path and the like, and is used for supplying oil to auxiliary equipment of the generator set and other systems; in the system, by the working logics of the auxiliary lubricating oil flow path, the main lubricating oil flow path, the emergency lubricating oil flow path and other three flow paths, a plurality of systems such as a starting system, a pressure oil system and other systems, and a plurality of devices such as a generator, a speed reducer and the like commonly use the same lubricating oil system, so that oil supply of a plurality of lubricating points is realized, the number of the whole unit systems and devices is greatly reduced, the design of the lubricating system is simplified, the production cost is further reduced, and the system is convenient for later maintenance and control; when the auxiliary engine lubricating oil system works, the auxiliary lubricating oil flow path, the main lubricating oil flow path and the emergency lubricating oil flow path are mutually matched, so that oil for a plurality of lubricating points is simultaneously realized, and when a certain flow path fails, the rest two flow paths can be matched and replaced, so that the system has high working reliability, and the stable operation of the system can be effectively ensured.
In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
FIG. 1 is a schematic diagram of an auxiliary lubricating system in accordance with a preferred embodiment of the present invention;
FIG. 2 is a schematic diagram II of an auxiliary lubricating system in accordance with a preferred embodiment of the present invention;
Fig. 3 is a schematic diagram III of an auxiliary lubricating oil system according to a preferred embodiment of the present invention.
Description of the drawings
1. A lubricating oil tank; 2. a generator; 3. a speed reducer; 4. starting the system; 5. a pressurized oil system; 6. an auxiliary lubricating oil pump motor; 7. an auxiliary lubricating oil pump; 8. a first one-way valve; 10. a duplex filter; 11. an on-board pump; 12. a second one-way valve; 13. an emergency oil pump motor; 14. an emergency lubricating oil pump; 15. a third one-way valve; 16. a transfer box; 19. an electric heater.
Detailed Description
Embodiments of the invention are described in detail below with reference to the attached drawing figures, but the invention can be practiced in a number of different ways, as defined and covered below.
Referring to fig. 1, a preferred embodiment of the present invention provides an auxiliary lubricating oil system including: the oil tank 1 is used for supplying oil, and an auxiliary oil flow path, a main oil flow path and an emergency oil flow path which are integrated on an oil tank cover of the oil tank 1 are respectively connected with the oil tank 1 at oil inlet ends of the auxiliary oil flow path, the main oil flow path and the emergency oil flow path, and oil outlet sections of the auxiliary oil flow path, the main oil flow path and the emergency oil flow path are overlapped to respectively supply oil to a generator 2, a speed reducer 3, a starting system 4 and a pressure oil system 5 of a gas turbine generator set. The auxiliary lubricating oil flow path is also used for cooling, pressure regulating and filtering the conveyed lubricating oil and starting oil supply after the machine set starts to work until the machine set reaches the rated rotation speed and the machine set stops and decelerates. The main lubricating oil flow path is also used for cooling, pressure regulating and filtering the conveyed lubricating oil and is used for starting oil supply by the speed reducer 3 after the rotating speed of the unit is increased. The emergency lubricating oil flow path is also used for filtering the conveyed lubricating oil and starting the machine set from the beginning of the working of the machine set to the successful ignition of the machine set so as to be matched with the auxiliary lubricating oil flow path for oil supply.
When the auxiliary engine lubricating oil system works, firstly, when a unit is started, an auxiliary lubricating oil flow path is started, after the starting system 4 and the pressure oil system 5 are started, an emergency lubricating oil flow path is restarted, oil supply is carried out by cooperating with the auxiliary lubricating oil flow path, and enough lubricating oil flow is provided for the system; then, after the unit is ignited, the starting system 4 stops working, and the emergency lubricating oil flow path also stops working; then, the rotating speed continues to rise, after the rotating speed of the unit rises, the speed reducer 3 drives the airborne lubricating oil flow path to start, the lubricating oil quantity increases, after the rated rotating speed is reached, the auxiliary lubricating oil flow path stops working, and the airborne lubricating oil flow path singly works; and finally, after the machine set is stopped and decelerated, restarting the auxiliary lubricating oil flow path, and supplying oil to the system by the auxiliary lubricating oil flow path until the machine set is stopped.
The invention provides an auxiliary engine lubricating oil system applied to a gas turbine generator set, which comprises a lubricating oil tank 1, an auxiliary lubricating oil flow path, a main lubricating oil flow path, an emergency lubricating oil flow path and the like, and is used for supplying oil to auxiliary equipment of the generator set and other systems; in the system, by the working logics of the auxiliary lubricating oil flow path, the main lubricating oil flow path, the emergency lubricating oil flow path and the like, a plurality of systems such as the starting system 4, the pressure oil system 5 and the like and a plurality of devices such as the generator 2, the speed reducer 3 and the like commonly use the same lubricating oil system, so that the number of the whole unit system and the devices is greatly reduced while oil supply at a plurality of lubricating points is realized, the design of the lubricating system is simplified, the production cost is further reduced, and the later maintenance and control are facilitated; when the auxiliary engine lubricating oil system works, the auxiliary lubricating oil flow path, the main lubricating oil flow path and the emergency lubricating oil flow path are mutually matched, so that oil for a plurality of lubricating points is simultaneously realized, and when a certain flow path fails, the rest two flow paths can be matched and replaced, so that the system has high working reliability, and the stable operation of the system can be effectively ensured.
Optionally, as shown in fig. 2 and 3, the auxiliary lubricating oil flow path includes an auxiliary lubricating oil pump motor 6 fixed on the oil tank cover, an auxiliary lubricating oil pump 7 positioned in the lubricating oil tank 1 and connected with the auxiliary lubricating oil pump motor 6, a first check valve 8, a lubricating oil cooler for cooling lubricating oil, and a duplex filter 10 for filtering lubricating oil. The auxiliary lubricating oil pump 7, the first check valve 8, the lubricating oil cooler and the duplex filter 10 are sequentially communicated in the lubricating oil flow direction through the lubricating oil pipe. The outlet end of the duplex filter 10 is also connected with an oil pipe, and the generator 2, the speed reducer 3, the starting system 4 and the pressure oil system 5 are respectively communicated with the oil pipe at the outlet end of the duplex filter 10. When the engine works, the auxiliary lubricating oil pump motor 6 is started to drive the auxiliary lubricating oil pump 7 to absorb oil, the lubricating oil reaches the lubricating oil cooler after passing through the first one-way valve 8, the lubricating oil enters the duplex filter 10 through the lubricating oil pipe from the oil outlet end of the lubricating oil cooler after being cooled, and the lubricating oil is filtered by the duplex filter 10 and then is connected to each lubricating oil point through the lubricating oil pipe from the oil outlet end of the duplex filter 10. In this alternative scheme, the oil cooler is installed on the unit case top, practices thrift installation space, and extension lubricating oil cooling route.
Alternatively, as shown in fig. 2 and 3, the main oil flow path includes an on-board pump 11 connected to the speed reducer 3, a second check valve 12, an oil cooler, and a duplex filter 10. The oil inlet end of the on-board pump 11 is connected with the lubricating oil tank 1 through a lubricating oil pipe. The on-board pump 11, the second check valve 12 and the lubricating oil cooler are sequentially communicated in the lubricating oil flowing direction through a lubricating oil pipe. During operation, the speed reducer 3 drives the on-board pump 11 to start, the on-board pump 11 works to absorb oil, the lubricating oil reaches the lubricating oil cooler after passing through the second one-way valve 12, after being cooled, the lubricating oil enters the duplex filter 10 through the lubricating oil pipe from the oil outlet end of the lubricating oil cooler, and after being filtered by the duplex filter 10, the lubricating oil is connected to each lubricating oil point through the lubricating oil pipe from the oil outlet end of the duplex filter 10. In the alternative scheme, the auxiliary lubricating oil flow path and the main lubricating oil flow path share the lubricating oil cooler and the subsequent flow path, so that the number of whole unit systems and equipment is greatly reduced while oil supply at a plurality of lubricating points is realized, the design of a lubricating system is simplified, the production cost is further reduced, and the later maintenance and control are facilitated.
Further, as shown in fig. 2, the main oil flow path further includes an oil injection pipe, an oil inlet end of the oil injection pipe is connected to an oil outlet end of the second check valve 12, and the oil outlet end of the oil injection pipe faces the on-board pump 11, so as to be used for injecting oil into the on-board pump 11. When the auxiliary lubricating oil pump 7 is started, an oil injection pipe is arranged on an oil supply pipeline of the auxiliary lubricating oil flow path, and oil is injected into a rear pipeline of the airborne pump 11 through the oil injection pipe, so that the phenomenon of dry grinding is avoided when the airborne pump 11 is started, the oil pump is damaged, the failure rate of the airborne pump 11 is reduced, and the starting reliability is improved.
Alternatively, as shown in fig. 2 and 3, the emergency oil flow path includes an emergency oil pump motor 13 fixed to the oil tank cover, an emergency oil pump 14 located in the oil tank 1 and connected to the emergency oil pump motor 13, a third check valve 15, and a duplex filter 10. The emergency lubricating oil pump 14, the third one-way valve 15 and the duplex filter 10 are sequentially communicated in the lubricating oil flow direction through a lubricating oil pipe. When the emergency oil pump motor 13 is in operation, the emergency oil pump 14 is driven to work for absorbing oil, the oil directly reaches the duplex filter 10 after passing through the third one-way valve 15, and the oil is filtered by the duplex filter 10 and then is connected to each oil point for lubricating oil through the oil pipe by the oil outlet end of the duplex filter 10. In the alternative scheme, the emergency lubricating oil flow path, the auxiliary lubricating oil flow path and the main lubricating oil flow path share the duplex filter 10 and the subsequent flow path, so that the number of the whole unit system and equipment is reduced while oil supply at a plurality of lubricating points is realized, the design of the lubricating system is simplified, the production cost is further reduced, and the later maintenance and control are facilitated; on the other hand, the lubricating oil from the lubricating oil tank 1 directly enters the duplex filter 10 after passing through the emergency lubricating oil pump 14 and the third one-way valve 15 without cooling, thereby greatly shortening the oil supply length and the oil supply time and really playing an emergency role.
Optionally, as shown in fig. 1, the auxiliary lubricating oil system further includes an adapter box 16 for converting direct current into alternating current. The adapter box 16 is electrically connected with the emergency oil pump motor 13. When emergency oil supply is needed after power failure, the battery supplies power for standby, the output current of the battery is direct current, and the direct current is converted into alternating current through the switching box 16, so that the power supply of the emergency oil pump motor 13 is realized, the emergency oil supply flow path starts oil supply, and the emergency oil supply is really realized; on the other hand, according to the field requirement, a direct current motor with explosion-proof grade meeting the requirement cannot be selected, a type of combination of the adapter box 16 and an alternating current motor is selected, and direct current is converted into alternating current, so that purchasing cost can be reduced, and the working condition requirement is met; in addition, the switching box 16 and the alternating current motor are used for replacing fewer direct current motors meeting the explosion-proof protection level in the market, and customization is not needed, so that the cost can be effectively reduced.
Optionally, as shown in fig. 2 and 3, the auxiliary lubricating oil system further includes a primary pressure regulating valve for regulating the primary pressure of the lubricating oil, and a secondary pressure regulating valve for regulating the secondary pressure of the lubricating oil again. The first-stage pressure regulating valve is arranged in an oil pipe pipeline between the second one-way valve 12 and the oil cooler; the primary pressure regulating valve is an overflow valve and is used for regulating the lubricating oil pressure and protecting the on-board pump 11 because the primary pressure regulating valve is arranged behind the on-board pump 11. The outlet end of the duplex filter 10 is also connected with an oil pipe, the outlet end of the oil pipe is connected with a three-way valve, a second valve port of the three-way valve is connected with an oil supply pipe, oil inlet pipes of the generator 2, the speed reducer 3, the starting system 4 and the pressure oil system 5 are respectively connected with the oil supply pipe, and a third valve port of the three-way valve is connected with a second-stage pressure regulating valve; the secondary pressure regulating valve is a self-operated pressure regulating valve and is used for regulating the lubricating oil pressure and ensuring the oil supply pressure and stable operation of the system as the secondary pressure regulating valve is arranged in front of inlets of the generator 2, the speed reducer 3, the starting system 4, the pressure oil system 5 and the like. According to the invention, the pressure control of the whole system is more stable and reliable by two-stage pressure regulation.
Preferably, a manual valve, a flowmeter and a pressure gauge are further arranged in the oil inlet pipe of the generator 2 in sequence. The manual valve, the flowmeter and the pressure gauge are arranged on the oil inlet pipe of the generator 2, the oil inlet amount of the generator 2 is regulated by regulating the size of the manual valve during cold rotation, after the unit is started, the bearing cavity of the generator is empty, the countless values of the pressure gauge are displayed, the oil inlet condition of the bearing of the generator is checked by the degree of the flowmeter, and the oil outlet pipe is provided with the oil flow indicator.
Optionally, as shown in fig. 1, the auxiliary lubricating oil system further includes a plurality of electric heaters 19 fixed on the oil tank cover, and the plurality of electric heaters 19 extend into the lubricating oil tank 1 to heat the lubricating oil.
Optionally, the system of the invention further comprises a liquid level transmitter, a pressure transmitter, a temperature transmitter and other devices, wherein the liquid level transmitter is arranged in the lubricating oil tank 1 and is used for monitoring the lubricating oil height in the lubricating oil tank 1; the pressure transmitter is connected to each position for monitoring oil pressure in the lubricating oil pipeline; a temperature transmitter is also connected to each of the oil lines at a location for monitoring the oil temperature.
When the unit starts, the auxiliary lubricating oil pump motor 6 is started to drive the auxiliary lubricating oil pump 7 to work, the auxiliary lubricating oil pump 7 works independently, and after the cold rotation of the unit is finished, the pressure oil system 5 and the starting system 4 start to start, the lubricating oil quantity is insufficient, the emergency oil pump motor 13 is started, and the emergency lubricating oil pump 14 is driven to start; after the ignition is finished, the starting system is closed, the emergency lubricating oil pump 14 stops working, the rotating speed of the speed reducer 3 is increased, the on-board pump 11 starts working, and after the rated rotating speed is reached, the auxiliary lubricating oil pump 7 stops working, and the on-board pump 11 works independently; after the unit is stopped, the auxiliary lubricating oil pump 7 is started again until the unit is stopped.
Referring to FIG. 1, a preferred embodiment of the present invention provides a gas turbine generator set comprising: the lubricating oil tank 1, the auxiliary lubricating oil system according to any one of the above, the generator 2, the speed reducer 3, the starting system 4, and the pressure oil system 5, and the speed reducer 3 is connected to the generator 2. The auxiliary machine lubricating oil system comprises an auxiliary lubricating oil flow path, a main lubricating oil flow path and an emergency lubricating oil flow path. The oil inlet ends of the auxiliary lubricating oil flow path, the main lubricating oil flow path and the emergency lubricating oil flow path are respectively connected with the lubricating oil tank 1, and the oil outlet sections of the auxiliary lubricating oil flow path, the main lubricating oil flow path and the emergency lubricating oil flow path are respectively connected with the generator 2, the speed reducer 3, the starting system 4 and the pressure oil system 5 after being overlapped.
The invention provides a gas turbine generator set, which comprises an auxiliary engine lubricating oil system, so that a plurality of systems such as a starting system 4, a pressure oil system 5 and a plurality of devices such as a generator 2, a speed reducer 3 can be used together by working logics of three flow paths such as an auxiliary lubricating oil flow path, a main lubricating oil flow path and an emergency lubricating oil flow path, so that the number of the whole set systems and devices is greatly reduced while oil supply at a plurality of lubricating points is realized, the design of the lubricating system is simplified, the production cost is further reduced, and later maintenance and control are facilitated; when the gas turbine generator set works, the auxiliary lubricating oil flow path, the main lubricating oil flow path and the emergency lubricating oil flow path are mutually matched, so that oil for a plurality of lubricating points is simultaneously realized, and when one flow path fails, the rest two flow paths can be matched and replaced, so that the system has high working reliability, and the stable operation of the system can be effectively ensured.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An auxiliary lubricating oil system, comprising:
The system comprises an oil tank (1) for supplying oil, an auxiliary oil flow path, a main oil flow path and an emergency oil flow path which are integrated on an oil tank cover of the oil tank (1), wherein oil inlet ends of the auxiliary oil flow path, the main oil flow path and the emergency oil flow path are respectively connected with the oil tank (1), and oil outlet sections of the auxiliary oil flow path, the main oil flow path and the emergency oil flow path are overlapped to supply oil to a generator (2) of a gas turbine generator set, a speed reducer (3), a starting system (4) for starting the gas turbine generator set and a pressure oil system (5) for supplying pressure oil;
the auxiliary lubricating oil flow path is also used for cooling, pressure regulating and filtering the conveyed lubricating oil and starting oil supply after the machine set starts to work until the machine set reaches the rated rotation speed and the machine set stops and decelerates;
The main lubricating oil flow path is also used for cooling, regulating pressure and filtering the conveyed lubricating oil and is used for starting oil supply by the speed reducer (3) after the rotating speed of the unit is increased;
the emergency lubricating oil flow path is also used for filtering the conveyed lubricating oil and starting the machine set from the beginning of the working of the machine set to the successful ignition of the machine set so as to be matched with the auxiliary lubricating oil flow path for oil supply.
2. The auxiliary lubricating oil system according to claim 1, wherein,
The auxiliary lubricating oil flow path comprises an auxiliary lubricating oil pump motor (6) fixed on the oil tank cover, an auxiliary lubricating oil pump (7) which is positioned in the lubricating oil tank (1) and is connected with the auxiliary lubricating oil pump motor (6), a first one-way valve (8), a lubricating oil cooler for cooling lubricating oil and a duplex filter (10) for filtering lubricating oil;
the auxiliary lubricating oil pump (7), the first one-way valve (8), the lubricating oil cooler and the duplex filter (10) are sequentially communicated along the lubricating oil flowing direction through the lubricating oil pipe;
The outlet end of the duplex filter (10) is also connected with an oil pipe, and the generator (2), the speed reducer (3), the starting system (4) and the pressure oil system (5) are respectively communicated with the oil pipe at the outlet end of the duplex filter (10).
3. The auxiliary lubricating oil system according to claim 2, wherein,
The main lubricating oil flow path comprises an on-board pump (11), a second one-way valve (12), a lubricating oil cooler and a duplex filter (10) which are connected with the speed reducer (3);
The oil inlet end of the airborne pump (11) is connected with the lubricating oil tank (1) through a lubricating oil pipe;
the machine-mounted pump (11), the second one-way valve (12) and the lubricating oil cooler are sequentially communicated along the flowing direction of the lubricating oil through the lubricating oil pipe.
4. The auxiliary lubricating oil system according to claim 3, wherein,
The main lubricating oil flow path further comprises a lubricating oil pipe, the oil inlet end of the lubricating oil pipe is connected with the lubricating oil pipe of the oil outlet end of the second one-way valve (12), and the oil outlet end of the lubricating oil pipe faces the airborne pump (11) so as to be used for guiding oil to carry out oiling on the airborne pump (11).
5. The auxiliary lubricating oil system according to claim 3, wherein,
The emergency lubricating oil flow path comprises an emergency oil pump motor (13) fixed on the oil tank cover, an emergency lubricating oil pump (14) which is positioned in the lubricating oil tank (1) and is connected with the emergency oil pump motor (13), a third one-way valve (15) and a duplex filter (10);
the emergency lubricating oil pump (14), the third one-way valve (15) and the duplex filter (10) are sequentially communicated along the lubricating oil flow direction through a lubricating oil pipe.
6. The auxiliary lubricating oil system according to claim 5, wherein,
The auxiliary lubricating oil system also comprises an adapter box (16) for converting direct current into alternating current;
The adapter box (16) is electrically connected with the emergency oil pump motor (13).
7. The auxiliary lubricating oil system according to claim 5, wherein,
The auxiliary lubricating oil system also comprises a first-stage pressure regulating valve for carrying out first-stage pressure regulation on the lubricating oil and a second-stage pressure regulating valve for carrying out second-stage pressure regulation on the lubricating oil;
The first-stage pressure regulating valve is arranged in an oil pipe pipeline between the second one-way valve (12) and the oil cooler;
The outlet end of the duplex filter (10) is also connected with an oil pipe, the outlet end of the oil pipe is connected with a three-way valve, a second valve port of the three-way valve is connected with an oil supply pipe, oil inlet pipes of the generator (2), the speed reducer (3), the starting system (4) and the pressure oil system (5) are respectively connected with the oil supply pipe, and a third valve port of the three-way valve is connected with a second-stage pressure regulating valve.
8. The auxiliary lubricating oil system according to claim 7, wherein,
The oil inlet pipe of the generator (2) is also provided with a manual valve, a flowmeter and a pressure gauge in sequence.
9. The auxiliary lubricating oil system according to claim 1, wherein,
The auxiliary lubricating oil system also comprises a plurality of electric heaters (19) fixed on the oil tank cover, and the electric heaters (19) extend into the lubricating oil tank (1) to heat lubricating oil.
10. A gas turbine generator set, comprising:
-a lubricating oil tank (1), -an auxiliary lubricating oil system according to any one of claims 1-9, -a generator (2), -a speed reducer (3), -a starting system (4) and-a pressure oil system (5), -the speed reducer (3) being connected to the generator (2);
the auxiliary engine lubricating oil system comprises an auxiliary lubricating oil flow path, a main lubricating oil flow path and an emergency lubricating oil flow path;
The oil inlet ends of the auxiliary lubricating oil flow path, the main lubricating oil flow path and the emergency lubricating oil flow path are respectively connected with a lubricating oil tank (1), and the oil outlet sections of the auxiliary lubricating oil flow path, the main lubricating oil flow path and the emergency lubricating oil flow path are respectively connected with a generator (2), a speed reducer (3), a starting system (4) and a pressure oil system (5) after being overlapped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410252403.9A CN118008580A (en) | 2024-03-06 | 2024-03-06 | Auxiliary engine lubricating oil system and gas turbine generator set with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410252403.9A CN118008580A (en) | 2024-03-06 | 2024-03-06 | Auxiliary engine lubricating oil system and gas turbine generator set with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118008580A true CN118008580A (en) | 2024-05-10 |
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ID=90947167
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410252403.9A Pending CN118008580A (en) | 2024-03-06 | 2024-03-06 | Auxiliary engine lubricating oil system and gas turbine generator set with same |
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| Country | Link |
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| CN (1) | CN118008580A (en) |
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- 2024-03-06 CN CN202410252403.9A patent/CN118008580A/en active Pending
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