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CN112523870A - Gas turbine lubricating oil system - Google Patents

Gas turbine lubricating oil system Download PDF

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Publication number
CN112523870A
CN112523870A CN202011487645.4A CN202011487645A CN112523870A CN 112523870 A CN112523870 A CN 112523870A CN 202011487645 A CN202011487645 A CN 202011487645A CN 112523870 A CN112523870 A CN 112523870A
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CN
China
Prior art keywords
lubricating oil
pump
oil
gas turbine
main pump
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Granted
Application number
CN202011487645.4A
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Chinese (zh)
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CN112523870B (en
Inventor
张智伟
李宝
杜波
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Shanghai Helan Touping Power Technology Co ltd
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Shanghai Helan Touping Power Technology Co ltd
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Publication of CN112523870A publication Critical patent/CN112523870A/en
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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
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
    • F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
    • 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
    • F02C7/36—Power transmission arrangements between the different shafts of the gas turbine plant, or between the gas-turbine plant and the power user
    • 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
    • F02C9/00—Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B23/00—Pumping installations or systems
    • F04B23/04—Combinations of two or more pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • General Details Of Gearings (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Abstract

本发明公开了一种燃气轮机润滑油系统，由主泵、辅泵为主供油管路提供润滑油，分油阀块的出油不但根据流量需求分别进入燃气轮机待润滑部件对其进行冷却润滑，还另外引一条支路到主泵预润滑管路，经过主泵预润滑管路上的主泵预润滑单向阀、主泵预润滑限流器进入主泵泵腔对主泵进行预润滑。该燃气轮机润滑油系统，在燃气轮机启动前，主泵不工作，能够对主泵进行预润滑，有效延长主泵使用寿命，并且主泵预润滑管路上的主泵预润滑限流器能够有效控制主泵预润滑的流量，主泵预润滑单向阀能防止主泵运行时泵出流量泄漏。

Figure 202011487645

The invention discloses a lubricating oil system for a gas turbine. A main pump and an auxiliary pump provide the main oil supply pipeline with lubricating oil. The oil output from the oil separation valve block not only enters the lubricating parts of the gas turbine respectively according to the flow requirements for cooling and lubricating them; In addition, a branch is led to the main pump pre-lubrication pipeline, and the main pump pre-lubrication check valve and main pump pre-lubrication restrictor on the main pump pre-lubrication pipeline enter the main pump cavity to pre-lubricate the main pump. The gas turbine lubricating oil system can pre-lubricate the main pump before the gas turbine starts, effectively prolong the service life of the main pump, and the main pump pre-lubrication restrictor on the main pump pre-lubrication pipeline can effectively control the main pump. The flow rate of the pump pre-lubrication, the main pump pre-lubrication check valve can prevent the flow of the pump from leaking when the main pump is running.

Figure 202011487645

Description

Gas turbine lubricating oil system
Technical Field
The invention relates to a gas turbine, in particular to a lubricating oil system of the gas turbine.
Background
A Gas Turbine (Gas Turbine) is a rotary power machine which converts heat energy into mechanical work by using continuously flowing Gas as a working medium. In the main flow of air and gas, only a gas Turbine cycle consisting of three major components, namely a Compressor (Compressor), a Combustor (Combustor) and a gas Turbine (Turbine), is called a simple cycle. Most gas turbines use a simple cycle scheme. Because of its simplest structure, it can best embody a series of advantages of small volume, light weight, quick start, little or no cooling water, etc. peculiar to gas turbine.
The working process of the gas turbine is that an air compressor (namely a compressor) continuously sucks air from the atmosphere, and the air is compressed step by an axial flow type air compressor to be pressurized, and meanwhile, the air temperature is correspondingly increased; compressed air is pumped into a combustion chamber and mixed with injected fuel to generate high-temperature and high-pressure gas, the high-temperature and high-pressure gas immediately flows into a gas turbine to expand and do work, a turbine impeller is pushed to drive a compressor impeller to rotate together, waste gas discharged from the turbine is discharged to atmosphere to naturally release heat, partial chemical function of the gas or liquid fuel is converted into mechanical work, and electric work is output; the work-doing ability of the heated high-temperature gas is obviously improved, so that the gas turbine still has residual work as the output mechanical work of the gas turbine while driving the compressor.
The gas turbine can generate higher temperature in the operation process, if the operation parts of the gas turbine operate at the high temperature for a long time, the service life of the gas turbine can be greatly shortened, and certain lubrication needs to be carried out on the gas turbine to improve the transmission efficiency of the gear. Therefore, a lubricating oil system is required to be added in the gas turbine unit to provide lubricating oil with certain pressure and temperature for the bearing chamber and the gear box, so that the lubricating and cooling of the running parts of the gas turbine are ensured, and the anti-corrosion and vibration reduction functions of some parts are realized.
The existing gas turbine lubricating oil system is independent of independent design of a gas turbine sound insulation box and is positioned outside the sound insulation box, so that the integrity of the gas turbine is poor, the transportation of a unit is not facilitated, and the unit is particularly inconvenient to be used as a mobile emergency power supply. In the running process of the unit, lubricating oil in the oil tank is heated and evaporated to generate oil mist, and carbonized micro particles are also mixed in the oil mist; the generation of oil mist forms micro-positive pressure in the oil tank to block oil return of the system; the existing gas turbine lubricating oil system adopts a treatment mode of directly discharging oil mist or simply discharging after filtering, so that the environment is seriously polluted, the oil consumption is increased, the PM2.5 particle concentration in a workshop is greatly improved, and the health of operators is hindered.
Disclosure of Invention
The invention aims to provide a gas turbine lubricating oil system, which can pre-lubricate a main pump before a gas turbine is started, effectively prolong the service life of the main pump, effectively control the pre-lubrication flow of the main pump, and prevent the leakage of the pumped flow when the main pump operates.
In order to solve the technical problem, the gas turbine lubricating oil system provided by the invention comprises a main pump 21, an auxiliary pump 16, an oil combining valve block, an oil distributing valve block and a main pump pre-lubricating pipeline;
the main pump 21 is used for pumping lubricating oil from the lubricating oil tank 7 to be delivered to a main oil supply pipeline through a main pump pipeline and an oil combining valve block during operation;
the auxiliary pump 16 pumps lubricating oil from the lubricating oil tank 7 and sends the lubricating oil to the main oil supply pipeline through an auxiliary pump pipeline and an oil combining valve block when in work;
a main pump one-way valve 46 is arranged on the main pump pipeline, and a liquid inlet of the main pump one-way valve 46 is arranged at the side of the main pump 21;
an auxiliary pump one-way valve 47 is arranged on the auxiliary pump pipeline, and a liquid inlet of the auxiliary pump one-way valve 47 is arranged on the side of the auxiliary pump 16;
the oil distributing valve block is used for respectively sending the lubricating oil output by the main oil supply pipeline to a part to be lubricated of the gas turbine for lubrication according to the flow demand, and one path of the lubricating oil is sent to the input end of the main pump pre-lubrication pipeline;
the output of the main pump pre-lubrication line is communicated to the main pump line between the main pump check valve 46 and the main pump 21;
the main pump pre-lubrication pipeline is provided with a main pump pre-lubrication check valve 33 and a main pump pre-lubrication flow restrictor 32, and a liquid outlet of the main pump pre-lubrication check valve 33 is arranged at the side of the main pump 21;
the main pump 21 is driven by the auxiliary gear 48 of the gear box, and when the gas turbine rotates, the auxiliary gear 48 of the gear box is driven to drive the main pump 21 to work;
before the gas turbine is started, the auxiliary pump 16 works to pump oil from the lubricating oil tank 7, and the main pump 21 cannot be driven by the auxiliary gear 48 of the gear box to work because the gas turbine is not started; during the starting and running of the gas turbine, the main pump 21 is driven by the auxiliary gear 48 of the gear box to pump oil from the lubricating oil tank 7 due to the rotation energy of the gas turbine.
Preferably, the flow rate per unit time of the main pump pre-lubrication flow restrictor 32 is 0.5% to 1.5% of the rated output flow rate per unit time of the auxiliary pump 16.
Preferably, the parts to be lubricated of the gas turbine comprise at least one of the bearing chamber 26, the gear box 4 and the output shaft bearing 3.
Preferably, the gas turbine lubricating oil system further comprises a backup pump 11;
the standby pump 11 pumps lubricating oil out of the lubricating oil tank 7 and sends the lubricating oil to the main oil supply pipeline through a standby pump pipeline and an oil combining valve block when in work;
and a standby pump check valve 6 is arranged on the standby pump pipeline, and a liquid inlet of the standby pump check valve 6 is arranged on the side of the standby pump 11.
Preferably, the gas turbine lubricating oil system further comprises a control circuit;
the main pump 21 is driven by the auxiliary gear 48 of the gear box, and when the gas turbine rotates, the auxiliary gear 48 of the gear box is driven to drive the main pump 21 to work;
the auxiliary pump 16 is driven by an alternating current motor 14, the alternating current motor is powered by a diesel generator before the gas turbine is started, and the gas turbine is switched to supply power after the gas turbine is started;
the standby pump 11 is driven by a direct current motor 10 which is powered by a battery pack;
the control circuit:
when the gas turbine stops for more than a set time, before the gas turbine is started, the standby pump 11 is controlled not to work, the diesel generator is controlled to be started to supply power for the alternating current motor 14 to drive the auxiliary pump 16 to work, oil is pumped from the lubricating oil tank 7, and the main pump 21 cannot be driven to work by the auxiliary gear 48 of the gear box because the gas turbine is not started;
in the starting process of the gas turbine, when the rotating speed of the gas turbine is smaller than the set proportion of the rated rotating speed of the gas turbine, the standby pump 11 is controlled not to work, the auxiliary pump 16 is controlled to work continuously to pump oil from the lubricating oil tank 7, and the main pump 21 is driven by the auxiliary gear 48 of the gear box to work to pump oil from the lubricating oil tank 7 due to the starting of the gas turbine; when the rotating speed of the gas turbine reaches the set proportion of the rated rotating speed, the standby pump 11 is controlled not to work, the alternating current motor 14 is controlled to stop working, so that the auxiliary pump 16 does not work, and the main pump 21 can be driven by the auxiliary gear 48 of the gear box to work to pump oil from the lubricating oil tank 7 due to the rotation of the gas turbine;
in the normal operation process of the gas turbine, the standby pump 11 is controlled not to work, the auxiliary pump 16 is controlled not to work, and the main pump 21 can be driven by the auxiliary gear 48 of the gear box to work due to the rotation of the gas turbine to pump oil from the lubricating oil tank 7;
controlling to start a diesel generator to supply power to an alternating current motor 14 to enable an auxiliary pump 16 to work within a set time after the gas turbine stops working, wherein the auxiliary pump 16 pumps oil from a lubricating oil tank 7, and a main pump 21 stops pumping oil from the lubricating oil tank 7 because the gas turbine stops rotating and cannot be driven by an auxiliary gear 48 of a gear box to work;
when the gas turbine is emergently stopped in the operation process, the direct current motor 10 is controlled to immediately drive the backup pump 11 to work and pump oil from the lubricating oil tank 7, the main pump 21 stops pumping oil from the lubricating oil tank 7 because the gas turbine stops rotating and cannot be driven by the auxiliary gear 48 of the gear box, and the backup pump is stopped when the diesel generator is started to supply power to the alternating current motor 14 to drive the auxiliary pump 16 to work and pump oil from the lubricating oil tank 7.
Preferably, the set time is 30 minutes;
the set ratio is 95%.
Preferably, a three-way temperature control valve 39 is arranged on the main oil supply pipeline;
the three-way temperature control valve 39 comprises a temperature control main inlet, a temperature control auxiliary inlet and a temperature control outlet;
the temperature control auxiliary inlet is communicated to a main oil supply pipeline at the inlet side of the three-way temperature control valve 39 through an air cooling heat dissipation pipeline;
the temperature control main inlet is directly communicated with a main oil supply pipeline at the inlet side of the three-way temperature control valve 39;
the main oil supply pipeline at the inlet side of the three-way temperature control valve 39 is connected with the oil combining valve block;
when the oil temperature in the main oil supply pipeline at the inlet side of the three-way temperature control valve 39 is higher than a set high temperature value, the temperature control main inlet is closed, and the temperature control auxiliary inlet is communicated; otherwise, the temperature control main inlet is conducted, and the temperature control auxiliary inlet is closed;
the air-cooled radiating pipeline is provided with an air-cooled radiator 36;
the air-cooled radiator 36 is used for cooling the lubricating oil flowing through the air-cooled heat dissipation loop.
Preferably, a duplex filter 31 is arranged on a main oil supply pipeline between the three-way temperature control valve 39 and the oil distributing valve block;
the duplex filter 31 is used for filtering the lubricating oil flowing from the three-way temperature control valve 39 to the oil distributing valve block.
Preferably, one path of the lubricating oil output by the oil distributing valve block is communicated to the lubricating oil tank 7 through an oil distributing and returning pipeline;
a system plug-in overflow valve 24 is arranged on the oil separating and returning pipeline;
the system is inserted with an overflow valve 24, and when the oil pressure of the lubricating oil output by the oil distributing valve block exceeds a set value, the system is opened, so that a part of the lubricating oil output by the oil distributing valve block flows back to the lubricating oil tank 7 through an oil return pipeline, and the oil pressure of the lubricating oil output by the oil distributing valve block is reduced.
Preferably, the gas turbine lubricating oil system further comprises an oil mist separator 2;
the exhaust hole of the lubricating oil tank 7 and the air hole of the gas turbine gear box 4 are respectively communicated with the oil mist separator 2 through pipelines;
the oil mist separator 2 is used for separating oil and air through coalescence and separation of oil mist, enabling the separated lubricating oil to flow back to the lubricating oil tank 7 through a separation oil return pipeline, enabling the separated air to enter the flame arrester 1 and finally be discharged into the atmosphere.
Preferably, a main pump overflow line is provided between the main pump line from the main pump 21 to the main pump check valve 46 and the lubricating oil tank 7;
a main pump plug-in overflow valve 23 is arranged on the main pump overflow pipeline;
when the oil pressure in the main pump pipeline is larger than a set value, the main pump plug-in overflow valve 23 is opened, and a part of lubricating oil pumped out by the main pump 21 flows back to the lubricating oil tank 7 through the main pump overflow pipeline, so that the oil pressure in the main pump pipeline is reduced.
Preferably, a main pump exhaust line is provided between the main pump line from the main pump 21 to the main pump check valve 46 and the lubricating oil tank 7;
and a main pump exhaust flow restrictor 45 is arranged on the main pump exhaust pipeline.
Preferably, the air-cooled radiator 36 is connected to the lubricating oil tank 7 through a radiator exhaust pipeline;
a heat dissipating exhaust flow restrictor 37 is provided in the radiator exhaust line.
Preferably, the main pump 21 is provided with a overflow bypass valve 22;
an oil inlet of a main pump 21 is connected with a main pump oil suction filter 20 through a pipeline;
the main pump suction filter 20 is disposed below the lubricating oil level in the lubricating oil tank 7.
Preferably, the auxiliary pump 16 and the spare pump 11 are provided with overflow bypass valves 22;
the auxiliary pump 16 and the oil inlet of the standby pump 11 are respectively connected with the auxiliary pump oil suction filter 13 through pipelines;
the sub-pump suction filter 13 is disposed below the lubricating oil level in the lubricating oil tank 7.
Preferably, the oil supply pipeline of the gear box, the oil supply pipeline of the bearing chamber, the main pump pipeline, the oil inlet of the duplex filter 31 and the oil outlet of the duplex filter 31 are respectively provided with a pressure sensor 25;
pressure signals at various positions detected by the pressure sensors 25 are transmitted to the server;
and the server is used for monitoring the pressure in the pipeline in real time.
Preferably, a pipeline temperature sensor 5 is respectively arranged on an oil inlet of the air cooling radiator 36, an oil outlet of the duplex filter 31, and an oil return pipeline from the gear box 4 to the lubricating oil tank 7;
temperature signals at various positions detected by the pipeline temperature sensors 5 are transmitted to the server;
and the server is used for monitoring the temperature in the pipeline in real time.
Preferably, the lubricating oil tank 7 is provided with a tank temperature sensor 35 and a liquid level sensor 18;
the temperature signal detected by the oil tank temperature sensor 35 and the liquid level signal detected by the liquid level sensor 18 are sent to the server;
and the server is used for monitoring the oil temperature and the liquid level in the lubricating oil tank 7 in real time.
Preferably, a pressure difference meter 43 is arranged between an oil inlet and an oil outlet of the duplex filter;
a pressure gauge 28 is arranged at an oil outlet of the duplex filter;
a thermometer 40 is arranged at each oil inlet of the duplex filter;
a level gauge 19 is attached to the lubricating oil tank 7.
Preferably, a heater 8 is arranged inside the lubricating oil tank 7;
the heater 8 starts heating when the temperature of the lubricating oil in the lubricating oil tank 7 is lower than a set low temperature value;
the set low temperature value is lower than the set high temperature value.
Preferably, the set high temperature value is 50 ℃;
the set low temperature value was 10 ℃.
Preferably, pressure switches 9 are respectively arranged on the auxiliary pump pipeline, the standby pump pipeline and the main oil supply pipeline between the duplex filter and the oil combining valve block;
and the control circuit controls the start and stop of the gas turbine according to the state of each pressure switch.
Preferably, the lubricating oil tank 7 is integrated on a skid-mounted base.
According to the gas turbine lubricating oil system, the main pump 21 and the auxiliary pump 16 provide lubricating oil for the main oil supply pipeline, the oil discharged from the oil distribution valve block not only respectively enters the bearing chamber 26, the gear box 4 and the output shaft bearing 3 according to the flow demand to wait for the lubricating parts to cool and lubricate the lubricating parts, but also introduces a branch to the main pump pre-lubricating pipeline, and enters the pump cavity of the main pump 21 through the main pump pre-lubricating one-way valve 33 and the main pump pre-lubricating flow restrictor 32 on the main pump pre-lubricating pipeline to pre-lubricate the main pump 21. This gas turbine lubricating oil system, before gas turbine starts, main pump 21 is out of work, can carry out the prelubrication to main pump 21, effectively prolongs main pump 21 life to the main pump on the main pump prelubrication pipeline prelubricates the flow that current limiter 32 can effectively control main pump 21 and lubricate the flow in advance, and the main pump is lubricated check valve 33 in advance and can prevent that main pump 21 from pumping flow when moving and leaking.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the present invention are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of an embodiment of a gas turbine lubricating oil system according to the present invention.
The reference numbers in the figures illustrate:
1, a flame arrester; 2 an oil-mist separator; 3 an output shaft bearing; 4 a gear case; 5 a pipeline temperature sensor; 6, a one-way valve of a standby pump; 7 lubricating oil tank; 8, a heater; 9 a pressure switch; 10 a direct current motor; 11 a backup pump; 13 auxiliary pump oil suction filter; 14 an alternating current motor; 16 auxiliary pumps; 18 a liquid level sensor; 19 a liquid level meter; 20, a main pump oil suction filter; 21 a main pump; 22 an overflow bypass valve; an overflow valve is inserted into the main pump 23; 24, inserting an overflow valve into the system; 25 a pressure sensor; 26 a bearing chamber; 28 pressure gauge; 31 a duplex filter; 32 main pump pre-lubrication flow restrictor; 33 main pump pre-lubrication check valve; 35 a tank temperature sensor; 36 air-cooled radiators; 37 heat dissipating exhaust flow restrictor; 39 three-way temperature control valve; a 40-degree temperature meter; 43 pressure difference meter; 45 main pump exhaust flow restrictor; 46 a main pump check valve; 47 auxiliary pump check valve; 48 gearbox auxiliary gear.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
As shown in fig. 1, the gas turbine lubricating oil system includes a main pump 21, an auxiliary pump 16, an oil combining valve block, an oil distributing valve block, and a main pump pre-lubrication pipeline;
the main pump 21 is used for pumping lubricating oil from the lubricating oil tank 7 to be delivered to a main oil supply pipeline through a main pump pipeline and an oil combining valve block during operation;
the auxiliary pump 16 pumps lubricating oil from the lubricating oil tank 7 and sends the lubricating oil to the main oil supply pipeline through an auxiliary pump pipeline and an oil combining valve block when in work;
a main pump one-way valve 46 is arranged on the main pump pipeline, and a liquid inlet of the main pump one-way valve 46 is arranged at the side of the main pump 21;
an auxiliary pump one-way valve 47 is arranged on the auxiliary pump pipeline, and a liquid inlet of the auxiliary pump one-way valve 47 is arranged on the side of the auxiliary pump 16;
the oil distributing valve block is used for respectively sending the lubricating oil output by the main oil supply pipeline to a part to be lubricated of the gas turbine for lubrication according to the flow demand, and one path of the lubricating oil is sent to the input end of the main pump pre-lubrication pipeline;
the output of the main pump pre-lubrication line is communicated to the main pump line between the main pump check valve 46 and the main pump 21;
the main pump pre-lubrication pipeline is provided with a main pump pre-lubrication check valve 33 and a main pump pre-lubrication flow restrictor 32, and a liquid outlet of the main pump pre-lubrication check valve 33 is arranged at the side of the main pump 21;
the main pump 21 is driven by the auxiliary gear 48 of the gear box, and when the gas turbine rotates, the auxiliary gear 48 of the gear box is driven to drive the main pump 21 to work;
before the gas turbine is started, the auxiliary pump 16 works to pump oil from the lubricating oil tank 7, and the main pump 21 cannot be driven by the auxiliary gear 48 of the gear box to work because the gas turbine is not started; during the starting and running of the gas turbine, the main pump 21 is driven by the auxiliary gear 48 of the gear box to pump oil from the lubricating oil tank 7 due to the rotation energy of the gas turbine.
Preferably, the flow rate per unit time of the main pump pre-lubrication flow restrictor 32 is 0.5% to 1.5% of the rated output flow rate per unit time of the auxiliary pump 16.
Preferably, the parts to be lubricated of the gas turbine comprise at least one of the bearing chamber 26, the gear box 4 and the output shaft bearing 3.
In the gas turbine lubricating oil system according to the first embodiment, the main pump 21 and the auxiliary pump 16 provide lubricating oil for the main oil supply pipeline, oil discharged from the oil distribution valve block not only enters the bearing chamber 26, the gear box 4 and the output shaft bearing 3 respectively according to flow requirements to wait for a lubricating part to cool and lubricate the lubricating part, but also leads a branch to the main pump pre-lubricating pipeline, and enters the pump cavity of the main pump 21 through the main pump pre-lubricating check valve 33 and the main pump pre-lubricating flow restrictor 32 on the main pump pre-lubricating pipeline to pre-lubricate the main pump 21. In the gas turbine lubricating oil system, before the gas turbine is started, the main pump 21 does not work, the main pump 21 can be pre-lubricated, the service life of the main pump 21 is effectively prolonged, the main pump pre-lubrication flow limiter 32 on the main pump pre-lubrication pipeline can effectively control the pre-lubrication flow of the main pump 21, and the main pump pre-lubrication check valve 33 can prevent the flow leakage of the main pump 21 during the starting and running processes of the gas turbine.
Example two
According to the first embodiment, the gas turbine lubricating oil system further comprises a backup pump 11;
the standby pump 11 pumps lubricating oil out of the lubricating oil tank 7 and sends the lubricating oil to the main oil supply pipeline through a standby pump pipeline and an oil combining valve block when in work;
and a standby pump check valve 6 is arranged on the standby pump pipeline, and a liquid inlet of the standby pump check valve 6 is arranged on the side of the standby pump 11.
In the gas turbine lubricating oil system according to the second embodiment, the main pump 21, the auxiliary pump 16, and the backup pump 11 are used to supply lubricating oil to the main oil supply line. The one-way valve enables the oil paths of the main pump 21, the auxiliary pump 16 and the backup pump 11 to be independent and not to interfere with each other, and stable lubricating oil is provided for a gas turbine bearing chamber 26, a gear box 4 and an output shaft bearing 3 to wait for lubricating parts through the mutual matching of the three pumps in the operation process of the gas turbine.
EXAMPLE III
According to the second embodiment, the gas turbine lubricating oil system further comprises a control circuit;
the auxiliary pump 16 is driven by an alternating current motor 14, the alternating current motor is powered by a diesel generator before the gas turbine is started, and the gas turbine is switched to supply power after the gas turbine is started;
the standby pump 11 is driven by a direct current motor 10 which is powered by a battery pack;
the control circuit:
when the gas turbine is stopped for more than a set time (for example, 30 minutes), before the gas turbine is started, the standby pump 11 is controlled not to work, the diesel generator is controlled to be started to supply power for the alternating current motor 14 to drive the auxiliary pump 16 to work, oil is pumped from the lubricating oil tank 7, and the main pump 21 cannot be driven to work by the auxiliary gear 48 of the gear box because the gas turbine is not started;
in the starting process of the gas turbine, when the rotating speed of the gas turbine is smaller than the set proportion (for example, 95%) of the rated rotating speed of the gas turbine, the standby pump 11 is controlled not to work, the auxiliary pump 16 is controlled to work continuously to pump oil from the lubricating oil tank 7, and the main pump 21 is driven by the auxiliary gear 48 of the gear box to work to pump oil from the lubricating oil tank 7 due to the starting of the gas turbine; when the rotating speed of the gas turbine reaches a set proportion (for example, 95%) of the rated rotating speed, the standby pump 11 is controlled not to work, the alternating current motor 14 is controlled to stop working, the auxiliary pump 16 does not work, and the main pump 21 can be driven by the auxiliary gear 48 of the gear box to work due to the rotation of the gas turbine to pump oil from the lubricating oil tank 7;
in the normal operation process of the gas turbine, the standby pump 11 is controlled not to work, the auxiliary pump 16 is controlled not to work, and the main pump 21 can be driven by the auxiliary gear 48 of the gear box to work due to the rotation of the gas turbine to pump oil from the lubricating oil tank 7;
controlling to start a diesel generator to supply power to the alternating current motor 14 within a set time (for example, 30 minutes) after the gas turbine is stopped so as to enable the auxiliary pump 16 to work, wherein the auxiliary pump 16 pumps oil from the lubricating oil tank 7, and the main pump 21 stops pumping oil from the lubricating oil tank 7 because the gas turbine stops rotating and cannot be driven by the auxiliary gear 48 of the gear box to work;
when the gas turbine is emergently stopped in the operation process, the direct current motor 10 is controlled to immediately (within 1 second) drive the standby pump 11 to work and pump oil from the lubricating oil tank 7, the main pump 21 stops pumping oil from the lubricating oil tank 7 because the gas turbine stops rotating and cannot be driven by the auxiliary gear 48 of the gear box, and the standby pump is stopped when the diesel generator is started to supply power to the alternating current motor 14 to drive the auxiliary pump 16 to work and pump oil from the lubricating oil tank 7.
In the lubricating oil system for the gas turbine in the third embodiment, before the gas turbine is started, the bearing chamber 26 of the gas turbine, the gear box 4 and the output shaft bearing 3 need to wait for lubrication of a lubricating part and pre-lubricate the main pump 21, at this time, the main pump 21 does not work because the gas turbine is in a stop state, and the backup pump 11 does not work; the auxiliary pump 16 is controlled to be driven by the alternating current motor 14 to pump oil, the auxiliary pump 16 pumps lubricating oil to push an auxiliary pump one-way valve 47 and then sends the lubricating oil to a main oil supply pipeline, and one way of oil output of the oil distribution valve block enters a main pump cavity through a main pump pre-lubrication one-way valve 33 and a main pump pre-lubrication flow restrictor 32 to pre-lubricate a main pump 21; in the starting process of the gas turbine, the main pump 21 is driven by the auxiliary gear 48 of the gear box to start oil supply, the rotating speed of the main pump 21 changes along with the change of the rotating speed of the gas turbine, and the rotating speed of the gas turbine at the initial starting stage is lower, so that the main pump 21 alone supplies oil and cannot meet the flow required by cooling and lubricating the bearing chamber 26, the gear box 4, the output shaft bearing 3 and the like, the auxiliary pump 16 cooperates with the main pump 21 to supply oil continuously, the outlet pressure of the main pump 21 is higher than the oil pressure in a main pump pre-lubricating pipeline, the main pump lubricating one-way valve 33 is closed, the main pump 21 is not pre-lubricated any more; when the rotating speed of the gas turbine exceeds the set proportion of the rated rotating speed of the gas turbine in the starting process of the gas turbine and the gas turbine normally runs, the flow of lubricating oil pumped out by the main pump 21 can meet the system requirements, at the moment, the alternating current motor 14 is controlled to stop driving the auxiliary pump 16, the main pump 21 independently supplies oil to the system, the outlet pressure of the main pump 21 is higher than the oil pressure in a pre-lubricating pipeline of the main pump, the lubricating one-way valve 33 of the main pump is closed, and the main pump 21 is not pre-lubricated any more; in a set time after the gas turbine is stopped, the main pump 21 does not work because the gas turbine is in a stopped state, and because the whole unit is still in a high-temperature state, lubricating oil with a certain flow rate is required to be provided for a bearing chamber 26, a gear box 4, an output shaft bearing 3 and the like to cool and lubricate the bearing chamber, the gear box 4, the output shaft bearing 3 and the like, and at the moment, the alternating current motor 14 is controlled to drive the auxiliary pump 16 to continuously supply oil to; when the gas turbine is in emergency shutdown in the operation process, the main pump 21 does not work because the gas turbine is in a shutdown state, the auxiliary pump 16 can start to work after the diesel generator is started, a certain time (about 30S) is needed from the start to the start of power generation of the diesel generator, in the starting process of the diesel generator, the standby pump 11 is driven by the direct current motor 10 to firstly carry out emergency oil supply on the system, and the direct current motor 10 is powered by the battery pack and can immediately work to drive the standby pump 11 to supply oil to the system, so that the gas turbine bearing chamber 26, the gear box 4 and the output shaft bearing 3 are prevented from being damaged when the lubrication parts wait for the lubrication interruption due to the emergency.
Example four
Based on the gas turbine lubricating oil system of the third embodiment, a three-way temperature control valve 39 is arranged on the main oil supply pipeline;
the three-way temperature control valve 39 comprises a temperature control main inlet, a temperature control auxiliary inlet and a temperature control outlet;
the temperature control auxiliary inlet is communicated to a main oil supply pipeline at the inlet side of the three-way temperature control valve 39 through an air cooling heat dissipation pipeline;
the temperature control main inlet is directly communicated with a main oil supply pipeline at the inlet side of the three-way temperature control valve 39;
the main oil supply pipeline at the inlet side of the three-way temperature control valve 39 is connected with the oil combining valve block;
when the oil temperature in the main oil supply pipeline at the inlet side of the three-way temperature control valve 39 is higher than a set high temperature value (for example, 50 ℃), the temperature control main inlet is closed, and the temperature control auxiliary inlet is communicated; otherwise, the temperature control main inlet is conducted, and the temperature control auxiliary inlet is closed;
the air-cooled radiating pipeline is provided with an air-cooled radiator 36;
the air-cooled radiator 36 is used for cooling the lubricating oil flowing through the air-cooled heat dissipation loop.
Preferably, a duplex filter 31 is arranged on a main oil supply pipeline between the three-way temperature control valve 39 and the oil distributing valve block;
the duplex filter 31 is used for filtering the lubricating oil flowing from the three-way temperature control valve 39 to the oil distributing valve block.
In the lubricating oil system of the gas turbine according to the fourth embodiment, when the oil temperature is high, the three-way temperature control valve 39 opens the temperature control auxiliary inlet to close the temperature control main inlet, the lubricating oil is cooled by the air-cooled radiator 36 and then enters the three-way temperature control valve 39 through the temperature control auxiliary inlet, and the oil discharged from the three-way temperature control valve enters the oil distribution valve block after being filtered by the duplex filter 31.
EXAMPLE five
Based on the lubricating oil system of the gas turbine in the fourth embodiment, one path of the lubricating oil output by the oil distributing valve block is communicated to the lubricating oil tank 7 through an oil distributing and returning pipeline;
a system plug-in overflow valve 24 is arranged on the oil separating and returning pipeline;
the system is inserted with an overflow valve 24, and when the oil pressure of the lubricating oil output by the oil distributing valve block exceeds a set value, the system is opened, so that a part of the lubricating oil output by the oil distributing valve block flows back to the lubricating oil tank 7 through an oil return pipeline, and the oil pressure of the lubricating oil output by the oil distributing valve block is reduced.
EXAMPLE six
According to the fourth embodiment, the gas turbine lubricating oil system further comprises an oil mist separator 2;
the exhaust hole of the lubricating oil tank 7 and the air hole of the gas turbine gear box 4 are respectively communicated with the oil mist separator 2 through pipelines;
the oil mist separator 2 is used for separating oil and air through coalescence and separation of oil mist, enabling the separated lubricating oil to flow back to the lubricating oil tank 7 through a separation oil return pipeline, enabling the separated air to enter the flame arrester 1 and finally be discharged into the atmosphere.
In the gas turbine lubricating oil system according to the sixth embodiment, the oil mist separator 2 is added to separate oil mist discharged from the lubricating oil tank 7 and the gas turbine gear box 4, the separated lubricating oil flows back to the lubricating oil tank 7 through the oil return line, and air is discharged, so that the consumption of the lubricating oil can be effectively reduced, and the environment can be protected.
EXAMPLE seven
According to the gas turbine lubricating oil system of the fourth embodiment, a main pump overflow line is arranged between a main pump line between a main pump 21 and a main pump check valve 46 and the lubricating oil tank 7;
a main pump plug-in overflow valve 23 is arranged on the main pump overflow pipeline;
when the oil pressure in the main pump pipeline is larger than a set value, the main pump plug-in overflow valve 23 is opened, and a part of lubricating oil pumped out by the main pump 21 flows back to the lubricating oil tank 7 through the main pump overflow pipeline, so that the oil pressure in the main pump pipeline is reduced.
Preferably, a main pump exhaust line is provided between the main pump line from the main pump 21 to the main pump check valve 46 and the lubricating oil tank 7; and a main pump exhaust flow restrictor 45 is arranged on the main pump exhaust pipeline. During operation, gas in the main pump and associated lines can be effectively exhausted through the main pump exhaust line, and the main pump exhaust flow restrictor 45 can control the flow of lubricant that is exhausted along with the air during exhaust.
Preferably, the air-cooled radiator 36 is connected to the lubricating oil tank 7 through a radiator exhaust pipeline; a heat dissipating exhaust flow restrictor 37 is provided in the radiator exhaust line. During operation, air in the radiator and the corresponding line can be effectively exhausted through the radiator exhaust line, and the heat dissipation exhaust restrictor 37 can control the flow rate of the lubricating oil exhausted together with air during exhaust.
The gas turbine lubricating oil system of the seventh embodiment adds a flow restrictor in the main pump exhaust pipe and the radiator exhaust pipe, so that main pump exhaust and radiator exhaust are more convenient and feasible.
Example eight
Based on the lubricating oil system of the gas turbine of the fourth embodiment, the main pump 21 is provided with a overflow bypass valve 22;
an oil inlet of a main pump 21 is connected with a main pump oil suction filter 20 through a pipeline;
the main pump suction filter 20 is disposed below the lubricating oil level in the lubricating oil tank 7.
Preferably, the auxiliary pump 16 and the spare pump 11 are provided with overflow bypass valves 22;
the auxiliary pump 16 and the oil inlet of the standby pump 11 are respectively connected with the auxiliary pump oil suction filter 13 through pipelines;
the sub-pump suction filter 13 is disposed below the lubricating oil level in the lubricating oil tank 7.
Example nine
Based on the lubricating oil system of the gas turbine in the fourth embodiment, the oil supply pipeline of the gear box, the oil supply pipeline of the bearing chamber, the main pump pipeline, the oil inlet of the duplex filter 31 and the oil outlet of the duplex filter 31 are respectively provided with a pressure sensor 25;
pressure signals at various positions detected by the pressure sensors 25 are transmitted to the server;
and the server is used for monitoring the pressure in the pipeline in real time.
Preferably, a pipeline temperature sensor 5 is respectively arranged on an oil inlet of the air cooling radiator 36, an oil outlet of the duplex filter 31, and an oil return pipeline from the gear box 4 to the lubricating oil tank 7;
temperature signals at various positions detected by the pipeline temperature sensors 5 are transmitted to the server;
and the server is used for monitoring the temperature in the pipeline in real time.
Preferably, the lubricating oil tank 7 is provided with a tank temperature sensor 35 and a liquid level sensor 18;
the temperature signal detected by the oil tank temperature sensor 35 and the liquid level signal detected by the liquid level sensor 18 are sent to the server;
and the server is used for monitoring the oil temperature and the liquid level in the lubricating oil tank 7 in real time.
Example ten
Based on the lubricating oil system of the gas turbine of the fourth embodiment, a pressure difference meter 43 is arranged between an oil inlet and an oil outlet of the duplex filter;
a pressure gauge 28 is arranged at an oil outlet of the duplex filter;
a thermometer 40 is arranged at each oil inlet of the duplex filter;
a level gauge 19 is attached to the lubricating oil tank 7.
The lubricating oil system of the gas turbine in the tenth embodiment can directly observe the temperature, the pressure and the oil tank liquid level in the whole system by naked eyes on site.
EXAMPLE eleven
Based on the lubricating oil system of the gas turbine of the fourth embodiment, a heater 8 is arranged inside the lubricating oil tank 7;
the heater 8 starts heating when the temperature of the lubricating oil in the lubricating oil tank 7 is lower than a set low temperature value;
the set low temperature value is lower than the set high temperature value.
Preferably, the set high temperature value is 50 ℃;
the set low temperature value was 10 ℃.
In the lubricating oil system for a gas turbine according to the eleventh embodiment, the heater 8 heats the lubricating oil in the lubricating oil tank 7 when the temperature of the lubricating oil in the lubricating oil tank is low, so that the normal start of the gas turbine in winter is ensured.
Example twelve
Based on the lubricating oil system of the gas turbine in the fourth embodiment, pressure switches 9 are respectively arranged on the auxiliary pump pipeline, the standby pump pipeline and the main oil supply pipeline between the duplex filter and the oil combining valve block;
and the control circuit controls the start and stop of the gas turbine according to the state of each pressure switch.
EXAMPLE thirteen
Based on the gas turbine lubricating oil system of the fourth embodiment, the lubricating oil tank 7 is integrated on a skid-mounted base.
In the gas turbine lubricating oil system of the thirteenth embodiment, the lubricating oil tank 7 is integrated on the skid-mounted base, so that the whole unit is compact in structure and high in integration level, the unit is convenient to transport, and particularly the mobile emergency power supply unit is more convenient to use.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (23)

1.一种燃气轮机润滑油系统，其特征在于，其包括主泵(21)、辅泵(16)、合油阀块、分油阀块及主泵预润滑管路；1. A gas turbine lubricating oil system, characterized in that it comprises a main pump (21), an auxiliary pump (16), an oil-combining valve block, an oil-separating valve block and a main pump pre-lubrication pipeline; 所述主泵(21)，其工作时从润滑油箱(7)中泵出润滑油通过主泵管路经合油阀块送到主供油管路；The main pump (21) pumps out the lubricating oil from the lubricating oil tank (7) through the main pump pipeline and sends it to the main oil supply pipeline through the oil-combining valve block during operation; 所述辅泵(16)，其工作时从润滑油箱(7)中泵出润滑油通过辅泵管路经合油阀块送到主供油管路；The auxiliary pump (16) pumps out the lubricating oil from the lubricating oil tank (7) through the auxiliary pump pipeline and sends it to the main oil supply pipeline through the oil-combining valve block during operation; 所述主泵管路上设置有主泵单向阀(46)，主泵单向阀(46)的进液口在主泵(21)侧；The main pump pipeline is provided with a main pump check valve (46), and the liquid inlet of the main pump check valve (46) is on the main pump (21) side; 所述辅泵管路上设置有辅泵单向阀(47)，辅泵单向阀(47)的进液口在辅泵(16)侧；An auxiliary pump check valve (47) is arranged on the auxiliary pump pipeline, and the liquid inlet of the auxiliary pump check valve (47) is on the side of the auxiliary pump (16); 所述分油阀块将所述主供油管路输出的润滑油根据流量需求分别送到燃气轮机的待润滑部件进行润滑，并有一路送入所述主泵预润滑管路的输入端；The oil distribution valve block sends the lubricating oil output from the main oil supply pipeline to the parts to be lubricated of the gas turbine respectively according to the flow requirements for lubrication, and has a way to send it to the input end of the main pump pre-lubrication pipeline; 所述主泵预润滑管路的输出端连通到所述主泵单向阀(46)同所述主泵(21)的之间的主泵管路；The output end of the main pump pre-lubrication pipeline is connected to the main pump pipeline between the main pump check valve (46) and the main pump (21); 所述主泵预润滑管路，设置有主泵预润滑单向阀(33)及主泵预润滑限流器(32)，主泵预润滑单向阀(33)的出液口在主泵(21)侧；The main pump pre-lubrication pipeline is provided with a main pump pre-lubrication check valve (33) and a main pump pre-lubrication flow restrictor (32). (21) side; 主泵(21)由齿轮箱辅助齿轮(48)驱动，当燃气轮机转动时带动齿轮箱辅助齿轮(48)驱动主泵(21)工作；The main pump (21) is driven by the auxiliary gear (48) of the gearbox, and when the gas turbine rotates, the auxiliary gear (48) of the gearbox is driven to drive the main pump (21) to work; 在燃气轮机启动前，由辅泵(16)工作从润滑油箱(7)泵油，主泵(21)因燃气轮机未启动而不能被齿轮箱辅助齿轮(48)驱动工作；燃气轮机开始启动及运行过程中，主泵(21)因燃气轮机转动能被齿轮箱辅助齿轮(48)驱动工作从润滑油箱(7)泵油。Before the gas turbine is started, the auxiliary pump (16) works to pump oil from the lubricating oil tank (7). The main pump (21) cannot be driven by the auxiliary gear (48) of the gearbox because the gas turbine is not started. , the main pump (21) can be driven by the auxiliary gear (48) of the gearbox to pump oil from the lubricating oil tank (7) due to the rotation of the gas turbine. 2.根据权利要求1所述的燃气轮机润滑油系统，其特征在于，2. The gas turbine lubricating oil system according to claim 1, wherein, 所述主泵预润滑限流器(32)的单位时间流量为所述辅泵(16)的单位时间额定输出流出流量的0.5％～1.5％。The flow per unit time of the main pump pre-lubrication restrictor (32) is 0.5% to 1.5% of the rated output outflow flow per unit time of the auxiliary pump (16). 3.根据权利要求1所述的燃气轮机润滑油系统，其特征在于，3. The gas turbine lubricating oil system according to claim 1, wherein, 燃气轮机的待润滑部件包括轴承室(26)、齿轮箱(4)、输出轴轴承(3)中的至少一种。The components to be lubricated of the gas turbine include at least one of a bearing chamber (26), a gear box (4), and an output shaft bearing (3). 4.根据权利要求1所述的燃气轮机润滑油系统，其特征在于，4. The gas turbine lubricating oil system according to claim 1, wherein, 燃气轮机润滑油系统还包括备用泵(11)；The gas turbine lubricating oil system also includes a backup pump (11); 所述备用泵(11)，其工作时从润滑油箱(7)中泵出润滑油通过备用泵管路经合油阀块送到主供油管路；The standby pump (11) pumps out the lubricating oil from the lubricating oil tank (7) through the standby pump pipeline and sends it to the main oil supply pipeline through the oil-combining valve block during operation; 所述备用泵管路上设置有备用泵单向阀(6)，备用泵单向阀(6)的进液口在备用泵(11)侧。The backup pump pipeline is provided with a backup pump check valve (6), and the liquid inlet of the backup pump check valve (6) is on the side of the backup pump (11). 5.根据权利要求4所述的燃气轮机润滑油系统，其特征在于，5. The gas turbine lubricating oil system according to claim 4, wherein, 所述燃气轮机润滑油系统还包括控制电路；The gas turbine lubricating oil system further includes a control circuit; 主泵(21)由齿轮箱辅助齿轮(48)驱动，当燃气轮机转动时带动齿轮箱辅助齿轮(48)驱动主泵(21)工作；The main pump (21) is driven by the auxiliary gear (48) of the gearbox, and when the gas turbine rotates, the auxiliary gear (48) of the gearbox is driven to drive the main pump (21) to work; 辅泵(16)由交流电机(14)驱动，燃气轮机启动之前交流电机由柴油发电机供电，燃气轮机启动完成之后切换成燃气轮机进行供电；The auxiliary pump (16) is driven by an AC motor (14), and the AC motor is powered by a diesel generator before the gas turbine is started, and is switched to a gas turbine for power supply after the gas turbine is started; 备用泵(11)由直流电机(10)驱动，直流电机由电池组进行供电；The standby pump (11) is driven by a DC motor (10), and the DC motor is powered by a battery pack; 所述控制电路：The control circuit: 当燃气轮机停机超过设定时间，在燃气轮机启动前，控制备用泵(11)不工作，控制启动柴油发电机为交流电机(14)供电驱动辅泵(16)工作从润滑油箱(7)泵油，主泵(21)因燃气轮机未启动而不能被齿轮箱辅助齿轮(48)驱动工作；When the gas turbine is stopped for more than the set time, before the gas turbine is started, the standby pump (11) is controlled to not work, and the diesel generator is controlled to supply power to the AC motor (14) to drive the auxiliary pump (16) to work to pump oil from the lubricating oil tank (7), The main pump (21) cannot be driven by the auxiliary gear (48) of the gearbox because the gas turbine is not started; 燃气轮机启动过程中，当燃气轮机转速小于其额定转速的设定比例时，控制备用泵(11)不工作，控制辅泵(16)继续工作从润滑油箱(7)泵油，主泵(21)因燃气轮机启动能被齿轮箱辅助齿轮(48)驱动工作从润滑油箱(7)泵油；当燃气轮机转速达到其额定转速的设定比例时，控制备用泵(11)不工作，控制交流电机(14)停止工作使辅泵(16)不工作，主泵(21)因燃气轮机转动能被齿轮箱辅助齿轮(48)驱动工作从润滑油箱(7)泵油；During the start-up of the gas turbine, when the speed of the gas turbine is less than the set ratio of its rated speed, the standby pump (11) is controlled to not work, and the auxiliary pump (16) is controlled to continue to work to pump oil from the lubricating oil tank (7). When the gas turbine is started, it can be driven by the auxiliary gear (48) of the gearbox to pump oil from the lubricating oil tank (7). Stop working so that the auxiliary pump (16) does not work, the main pump (21) can be driven by the auxiliary gear (48) of the gearbox to work from the lubricating oil tank (7) due to the rotation of the gas turbine; 燃气轮机正常运行过程中，控制备用泵(11)不工作，控制辅泵(16)不工作，主泵(21)因燃气轮机转动能被齿轮箱辅助齿轮(48)驱动工作从润滑油箱(7)泵油；During the normal operation of the gas turbine, the control backup pump (11) does not work, the control auxiliary pump (16) does not work, and the main pump (21) can be driven by the auxiliary gear (48) of the gearbox to work from the lubricating oil tank (7) due to the rotation of the gas turbine. Oil; 燃气轮机停机以后的设定时间内，控制启动柴油发电机为交流电机(14)供电使辅泵(16)工作，辅泵(16)从润滑油箱(7)泵油，主泵(21)因燃气轮机停止转动不能被齿轮箱辅助齿轮(48)驱动工作而停止从润滑油箱(7)泵油；Within a set time after the gas turbine stops, the diesel generator is controlled to start to supply power to the AC motor (14) to make the auxiliary pump (16) work, the auxiliary pump (16) pumps oil from the lubricating oil tank (7), and the main pump (21) Stop the rotation can not be driven by the auxiliary gear (48) of the gearbox and stop pumping oil from the lubricating oil tank (7); 当燃气轮机在运行过程中出现紧急停机，控制直流电机(10)立即驱动备用泵(11)工作从润滑油箱(7)泵油，主泵(21)因燃气轮机停止转动不能被齿轮箱辅助齿轮(48)驱动工作而停止从润滑油箱(7)泵油，待柴油发电机启动后为交流电机(14)供电驱动辅泵(16)工作从润滑油箱(7)泵油时，备用泵停机。When the gas turbine is in an emergency stop during operation, the DC motor (10) is controlled to immediately drive the backup pump (11) to pump oil from the lubricating oil tank (7). ) drive work and stop pumping oil from the lubricating oil tank (7), after the diesel generator starts to supply power to the AC motor (14) to drive the auxiliary pump (16) to pump oil from the lubricating oil tank (7), the standby pump stops. 6.根据权利要求5所述的燃气轮机润滑油系统，其特征在于，6. The gas turbine lubricating oil system according to claim 5, wherein, 所述设定时间为30分钟；The set time is 30 minutes; 所述设定比例为95％。The set ratio is 95%. 7.根据权利要求4所述的燃气轮机润滑油系统，其特征在于，7. The gas turbine lubricating oil system according to claim 4, wherein, 所述主供油管路上设置有三通温控阀(39)；A three-way temperature control valve (39) is arranged on the main oil supply pipeline; 所述三通温控阀(39)包括温控主进口、温控副进口及温控出口；The three-way temperature control valve (39) includes a temperature control main inlet, a temperature control auxiliary inlet and a temperature control outlet; 所述温控副进口通过风冷散热管路连通到三通温控阀(39)进口侧的主供油管路；The temperature control auxiliary inlet is connected to the main oil supply pipeline on the inlet side of the three-way temperature control valve (39) through an air-cooled heat dissipation pipeline; 所述温控主进口直接连通到三通温控阀(39)进口侧的主供油管路；The temperature control main inlet is directly connected to the main oil supply pipeline on the inlet side of the three-way temperature control valve (39); 所述三通温控阀(39)进口侧的主供油管路与合油阀块相连；The main oil supply pipeline on the inlet side of the three-way temperature control valve (39) is connected to the oil-combining valve block; 当三通温控阀(39)进口侧的主供油管路中的油温高于设定高温值，温控主进口关闭，温控副进口导通；否则温控主进口导通，温控副进口关闭；When the oil temperature in the main oil supply pipeline on the inlet side of the three-way temperature control valve (39) is higher than the set high temperature value, the temperature control main inlet is closed, and the temperature control auxiliary inlet is turned on; otherwise, the temperature control main inlet is turned on, and the temperature The control and vice import is closed; 所述风冷散热管路上设置有风冷散热器(36)；An air-cooled radiator (36) is arranged on the air-cooled heat dissipation pipeline; 所述风冷散热器(36)用于使流经风冷散热回路中的润滑油降温。The air-cooled radiator (36) is used to cool the lubricating oil flowing through the air-cooled heat dissipation circuit. 8.根据权利要求7所述的燃气轮机润滑油系统，其特征在于，8. The gas turbine lubricating oil system according to claim 7, wherein: 三通温控阀(39)同分油阀块之间的主供油管路上设置有双联过滤器(31)；A double filter (31) is arranged on the main oil supply pipeline between the three-way temperature control valve (39) and the oil separation valve block; 所述双联过滤器(31)用于对从三通温控阀(39)流向分油阀块的润滑油进行过滤。The double filter (31) is used to filter the lubricating oil flowing from the three-way temperature control valve (39) to the oil separation valve block. 9.根据权利要求8所述的燃气轮机润滑油系统，其特征在于，9. The gas turbine lubricating oil system according to claim 8, wherein, 所述分油阀块输出的润滑油并有一路通过分油回油管路连通到润滑油箱(7)；The lubricating oil output from the oil separation valve block is also connected to the lubricating oil tank (7) through the oil separation oil return pipeline; 所述分油回油管路上设置有系统插装溢流阀(24)；A system cartridge overflow valve (24) is arranged on the oil separation and oil return pipeline; 所述系统插装溢流阀(24)，当所述分油阀块输出的润滑油的油压超过设定值时开启，使分油阀块输出的一部分润滑油通过回油管路回流至润滑油箱(7)，使分油阀块输出的润滑油的油压降低。The system is equipped with a relief valve (24), which is opened when the oil pressure of the lubricating oil output by the oil separation valve block exceeds the set value, so that a part of the lubricating oil output by the oil separation valve block is returned to the lubricating oil through the oil return pipeline. The oil tank (7) reduces the oil pressure of the lubricating oil output from the oil distribution valve block. 10.根据权利要求8所述的燃气轮机润滑油系统，其特征在于，10. The gas turbine lubricating oil system of claim 8, wherein: 所述燃气轮机润滑油系统还包括油雾分离器(2)；The gas turbine lubricating oil system further comprises an oil mist separator (2); 所述润滑油箱(7)排气孔及燃气轮机齿轮箱(4)透气孔分别通过管路与油雾分离器(2)相连通；The exhaust hole of the lubricating oil tank (7) and the ventilation hole of the gas turbine gear box (4) are respectively communicated with the oil mist separator (2) through pipelines; 所述油雾分离器(2)，用于通过对油雾的聚结分离使油和空气进行分离，并使分离之后的润滑油通过分离回油管路回流至润滑油箱(7)，使分离后的空气进入阻火器(1)最终排放至大气中。The oil mist separator (2) is used for separating oil and air by coalescing and separating the oil mist, and returning the separated lubricating oil to the lubricating oil tank (7) through the separation oil return pipeline, so that the separated lubricating oil is returned to the lubricating oil tank (7) after separation. The air entering the flame arrester (1) is finally discharged into the atmosphere. 11.根据权利要求8所述的燃气轮机润滑油系统，其特征在于，11. The gas turbine lubricating oil system of claim 8, wherein: 在主泵(21)到主泵单向阀(46)之间的主泵管路同润滑油箱(7)之间设置主泵溢流管路；A main pump overflow pipeline is arranged between the main pump pipeline between the main pump (21) and the main pump check valve (46) and the lubricating oil tank (7); 所述主泵溢流管路上设置有主泵插装溢流阀(23)；The main pump overflow pipeline is provided with a main pump cartridge overflow valve (23); 当主泵管路中的油压大于设定值时，所述主泵插装溢流阀(23)打开，主泵(21)泵出的润滑油会有一部分通过主泵溢流管路回流至润滑油箱(7)，使主泵管路中的油压降低。When the oil pressure in the main pump pipeline is greater than the set value, the main pump cartridge overflow valve (23) is opened, and a part of the lubricating oil pumped out by the main pump (21) will flow back to the main pump through the main pump overflow pipeline. The lubricating oil tank (7) reduces the oil pressure in the main pump line. 12.根据权利要求8所述的燃气轮机润滑油系统，其特征在于，12. The gas turbine lubricating oil system of claim 8, wherein 在主泵(21)到主泵单向阀(46)之间的主泵管路同润滑油箱(7)之间设置主泵排气管路；A main pump exhaust pipeline is arranged between the main pump pipeline between the main pump (21) and the main pump check valve (46) and the lubricating oil tank (7); 所述主泵排气管路上设置有主泵排气限流器(45)。A main pump exhaust flow restrictor (45) is arranged on the main pump exhaust pipeline. 13.根据权利要求8所述的燃气轮机润滑油系统，其特征在于，13. The gas turbine lubricating oil system of claim 8, wherein: 所述风冷散热器(36)通过散热器排气管路连接至润滑油箱(7)；The air-cooled radiator (36) is connected to the lubricating oil tank (7) through the radiator exhaust pipeline; 所述散热器排气管路中设置有散热排气限流器(37)。A cooling exhaust restrictor (37) is arranged in the exhaust pipe of the radiator. 14.根据权利要求8所述的燃气轮机润滑油系统，其特征在于，14. The gas turbine lubricating oil system of claim 8, wherein 所述主泵(21)自带溢流旁通阀(22)；The main pump (21) is provided with an overflow bypass valve (22); 主泵(21)进油口通过管路与主泵吸油过滤器(20)相连；The oil inlet of the main pump (21) is connected with the oil suction filter (20) of the main pump through a pipeline; 主泵吸油过滤器(20)设置在润滑油箱(7)中的润滑油液面之下。The main pump suction filter (20) is arranged below the lubricating oil level in the lubricating oil tank (7). 15.根据权利要求8所述的燃气轮机润滑油系统，其特征在于，15. The gas turbine lubricating oil system of claim 8, wherein 辅泵(16)与备用泵(11)均自带溢流旁通阀(22)；Both the auxiliary pump (16) and the standby pump (11) are provided with an overflow bypass valve (22); 辅泵(16)与备用泵(11)进油口分别通过管路与辅泵吸油过滤器(13)相连；The auxiliary pump (16) and the oil inlet of the backup pump (11) are respectively connected with the auxiliary pump oil suction filter (13) through pipelines; 辅泵吸油过滤器(13)设置在润滑油箱(7)中的润滑油液面之下。The auxiliary pump suction filter (13) is arranged below the lubricating oil level in the lubricating oil tank (7). 16.根据权利要求8所述的燃气轮机润滑油系统，其特征在于，16. The gas turbine lubricating oil system of claim 8, wherein 齿轮箱供油管路、轴承室供油管路、主泵管路、双联过滤器(31)进油口及双联过滤器(31)出油口均分别设置压力传感器(25)；Pressure sensors (25) are respectively provided on the oil supply pipeline of the gearbox, the oil supply pipeline of the bearing chamber, the main pump pipeline, the oil inlet of the double filter (31) and the oil outlet of the double filter (31); 各压力传感器(25)检测到的各处的压力信号传送到服务器；The pressure signals detected by each pressure sensor (25) are transmitted to the server; 所述服务器，用于实时监测管路中的压力。The server is used to monitor the pressure in the pipeline in real time. 17.根据权利要求8所述的燃气轮机润滑油系统，其特征在于，17. The gas turbine lubricating oil system of claim 8, wherein 风冷散热器(36)进油口、风冷散热器(36)出油口、双联过滤器(31)出油口、齿轮箱(4)到润滑油箱(7)的回油管路上均分别设置管路温度传感器(5)；The oil inlet of the air-cooled radiator (36), the oil outlet of the air-cooled radiator (36), the oil outlet of the double filter (31), and the oil return line from the gear box (4) to the lubricating oil tank (7) are respectively Set the pipeline temperature sensor (5); 各管路温度传感器(5)检测到的各处的温度信号传送到服务器；The temperature signals detected by each pipeline temperature sensor (5) are transmitted to the server; 所述服务器，用于实时监测管路中的温度。The server is used to monitor the temperature in the pipeline in real time. 18.根据权利要求8所述的燃气轮机润滑油系统，其特征在于，18. The gas turbine lubricating oil system of claim 8, wherein: 所述润滑油箱(7)上设置有油箱温度传感器(35)及液位传感器(18)；The lubricating oil tank (7) is provided with an oil tank temperature sensor (35) and a liquid level sensor (18); 油箱温度传感器(35)检测到温度信号及液位传感器(18)检测的液位信号出送到所述服务器；The temperature signal detected by the fuel tank temperature sensor (35) and the liquid level signal detected by the liquid level sensor (18) are sent to the server; 所述服务器，用于实时监测润滑油箱(7)中的油温及液位。The server is used for real-time monitoring of the oil temperature and liquid level in the lubricating oil tank (7). 19.根据权利要求8所述的燃气轮机润滑油系统，其特征在于，19. The gas turbine lubricating oil system of claim 8, wherein: 在双联过滤器的进油口同出油口之间设置压差表(43)；A differential pressure gauge (43) is set between the oil inlet and the oil outlet of the double filter; 在双联过滤器的出油口设置压力表(28)；Set a pressure gauge (28) at the oil outlet of the double filter; 在双联过滤器个进油口设置温度表(40)；A temperature gauge (40) is set at the oil inlet of the double filter; 在润滑油箱(7)上安装有液位计(19)。A liquid level gauge (19) is installed on the lubricating oil tank (7). 20.根据权利要求8所述的燃气轮机润滑油系统，其特征在于，20. The gas turbine lubricating oil system of claim 8, wherein 所述润滑油箱(7)内部设置有加热器(8)；A heater (8) is arranged inside the lubricating oil tank (7); 所述加热器(8)，当所述润滑油箱(7)内的润滑油温度低于设定低温值时启动加热；The heater (8) starts heating when the lubricating oil temperature in the lubricating oil tank (7) is lower than the set low temperature value; 所述设定低温值低于所述设定高温值。The set low temperature value is lower than the set high temperature value. 21.根据权利要求20所述的燃气轮机润滑油系统，其特征在于，21. The gas turbine lubricating oil system of claim 20, wherein 所述设定高温值为50℃；The set high temperature value is 50°C; 所述设定低温值为10℃。The set low temperature value is 10°C. 22.根据权利要求8所述的燃气轮机润滑油系统，其特征在于，22. The gas turbine lubricating oil system of claim 8, wherein 辅泵管路、备用泵管路及双联过滤器同合油阀块之间的主供油管路上均分别设置有压力开关(9)；Pressure switches (9) are respectively provided on the auxiliary pump pipeline, the backup pump pipeline and the main oil supply pipeline between the double filter and the oil closing valve block; 所述控制电路，根据各压力开关的状态，控制燃气轮机启停。The control circuit controls the start and stop of the gas turbine according to the state of each pressure switch. 23.根据权利要求1所述的燃气轮机润滑油系统，其特征在于，23. The gas turbine lubricating oil system of claim 1, wherein: 所述润滑油箱(7)集成在撬装底座上。The lubricating oil tank (7) is integrated on the skid-mounted base.
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