CN102937050A - High pressure air path system for stable combustion of vehicle gas turbine fuel oil - Google Patents
High pressure air path system for stable combustion of vehicle gas turbine fuel oil Download PDFInfo
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- CN102937050A CN102937050A CN2012103930554A CN201210393055A CN102937050A CN 102937050 A CN102937050 A CN 102937050A CN 2012103930554 A CN2012103930554 A CN 2012103930554A CN 201210393055 A CN201210393055 A CN 201210393055A CN 102937050 A CN102937050 A CN 102937050A
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Abstract
The present invention discloses a high pressure air path system for stable combustion of vehicle gas turbine fuel oil. The system comprises an air compressor (102), an air separator (103), an air storage tank (104), an electromagnetic valve (105) and an air distributor (106), wherein the devices are sequentially connected. The gas turbine comprises a fuel oil nozzle with an air atomization path, and a fuel oil nozzle with no air atomization path. The air compressor (102) is driven by a low pressure turbine rotor (100). According to the present invention, air is sequentially subjected to filtration, compression and depuration respectively by a filtration screen (101), the air compressor and the air separator, then is subjected to pressure adjustment, and is pressed into the air storage tank, when the gas turbine starts, high pressure air is introduced to the air atomization path to promote fuel oil atomization, when the gas turbine stops, high pressure air is introduced into an oil supply pipeline to purge the remaining fuel oil so as to clean the oil path. With the high pressure air path system, starting performance of the gas turbine under low temperature, high altitude and other harsh conditions, and working stability in a dust environment can be ensured.
Description
Technical field
The present invention relates to the high-pressure air road system of the steady combustion of a kind of fuel oil, relate in particular to a kind of high-pressure air road system that is applied to the steady combustion of automotive gas turbines fuel oil.
Background technique
The high-pressure air road system that the present invention relates to the steady combustion of fuel oil derives from the development of automotive gas turbines active force technology.Continuous expansion along with the gas turbine application scope has brought new problem, for the stability that guarantees to work in gas turbine starting performance under the mal-conditions such as low temperature, high height above sea level and the Sand Dust Environment, need to do corresponding design to fuel supply system.Vehicle-mounted gas turbine active force is under starting state, little with respect to the normal working fuel flow, fuel-oil atmozation is insufficient, cause ignition difficulties, the change of temperature and altitude further causes the variation of density of the induced air, so that the air inlet flow changes, cause the further variation of ignition performance, thereby need to improve the fuel-oil atmozation situation in fired state; With respect to aeroengine, the vehicle-mounted gas turbine faces the sand and dust impact, causes the situations such as oil-fired system obstruction, has a strong impact on the performance of gas turbine, needs blowing cleaner.
Summary of the invention
In order to overcome the above-mentioned shortcoming and defect of prior art, the present invention aims to provide a kind of high-pressure air road system that is applied to the steady combustion of automotive gas turbines fuel oil, is conducive to the gas turbine startup and prevents coking, cleaning dedusting.
For realizing above-mentioned technical purpose, the technological scheme that the present invention takes is:
A kind of high-pressure air road system that is applied to the steady combustion of automotive gas turbines fuel oil, described system comprises air compressor, air separator, gas holder, solenoid valve, air distributor, it is characterized in that,
Gas turbine comprises with the fuel nozzle on air atomizing road with without the fuel nozzle on air atomizing road,
Air compressor, air separator, gas holder, solenoid valve, air distributor link to each other successively by gas piping,
Air compressor is driven by the low-pressure fuel gas turbine rotor of gas turbine,
Air is pressed into gas holder after strainer filtering, air compressor compression, air separator filtering and pressure regulation, the high-pressure air in the gas holder enters air distributor by solenoid valve,
Air distributor comprises suction tude and outlet I, outlet II, and high-pressure air enters air distributor through suction tude, and the outlet I is communicated with the fuel supply line of all fuel nozzles, export II and be communicated with the air atomizing road of described fuel nozzle with the air atomizing road,
Shut electromagnetic valve when gas turbine normally moves, gas holder inflation storing high pressure gas; Open solenoid valve when gas turbine starting and parking, the gas holder venting provides pressurized gas for system.
Preferably, during the starting of gas turbine gas turbine, high-pressure air only passes into described air atomizing road to promote fuel-oil atmozation; When gas turbine stopped, high-pressure air passed into the fuel supply line of all fuel nozzles with purge fuel nozzle and pipeline.
Gas turbine utilizes the low-pressure fuel gas turbine rotor of self to drive air compressor and provides high-pressure air for air system, high-pressure air is come in from the filter screen of gas turbine bottom, after air compressor supercharging, the filtering of air separator assembly and pressure regulation, be stored in the gas holder, by solenoid valve, enter air distributor and carry out the work such as oil circuit purging, assisted atomization.
Preferably, the high-pressure air that air compressor provides, its pressure range is 〉=10MPa.
Air compressor can provide pressurized gas to the air separator assembly.The air source on air atomizing road is the pressurized gas of gas holder, is not the burning indoor air, guarantees the good atomizing of fuel oil when starting.
Preferably, air separator comprises filter and pressure controller.Filter can be isolated the impurity such as moisture content in the pressurized gas.Pressure controller can tentatively be regulated the supply gas pressure of pressurized gas to certain high pressure boundary, as between 10MPa～18MPa.
Preferably, solenoid valve is the solenoid valve of leading type, is used for the break-make of control pressurized gas gas circuit.When gas turbine normally moves, gas holder inflation storing high pressure gas; When the starting of gas turbine machine, when stopping, the gas holder venting provides pressurized gas for system.
Air distributor is that high-pressure air pressure is done fine adjustment, and the high-pressure air after will regulating is distributed to the device that each structure is used.Preferably, air distributor is except comprising suction tude and outlet I, outlet II, also comprise bellows, safety valve, exhaust port, pressure control valve I, pilot pressure end I, pressure control valve II, pilot pressure end II, in order to the switching of pilot pressure control valve I, II, the switching signal of pilot pressure end I, II path is sent by fuel regulation system respectively for pilot pressure end I, II.After high-pressure air was regulated pressure by the bellows in the air distributor, unnecessary gas can be discharged from exhaust port, if pressure is still too high, gas can release from safety valve.Air after the adjusting divides two-way to distribute, one the tunnel flows into the fuel supply line of all fuel nozzles through pressure control valve I, outlet I, blow down the Fuel Remained in fuel nozzle and the fuel supply line, and cleaning nozzle and pipeline, another road flows into the air atomizing road through pressure control valve II, outlet II, enters the auxiliary fuel atomizing of air atomizing road.
Preferably, all fuel nozzles are swirl atomizer.
Preferably, for the fuel nozzle without the air atomizing road, when gas turbine stops, pass into high-pressure air in the fuel supply line, oil circuit is purged.
Preferably, fuel nozzle with the air atomizing road comprises fuel nozzle part and air atomizing road, fuel nozzle part is identical with structure without the fuel nozzle on air atomizing road, and when gas turbine stopped, high-pressure air passed into the fuel supply line of fuel nozzle in partly; When gas turbine started, high-pressure air passed into the air atomizing road.
Remarkable advantage of the present invention is: only use fuel nozzle work with the air atomizing gas circuit at the gas turbine starting period, can improve ignition performance.After gas turbine enters the slow train operating mode, close the atomizing gas circuit, under not high charge oil pressure, fuel nozzle can guarantee enough fuel flows and combustion performance.
Description of drawings
Fig. 1 is high-pressure air of the present invention road system schematic.
Fig. 2 is air distributor schematic representation of the present invention.
Fig. 3 is pressure control valve schematic representation of the present invention.
Fig. 4 is the fuel nozzle schematic representation that the present invention does not have the air atomizing road.
Fig. 5 is that the present invention is with the fuel nozzle schematic representation on air atomizing road.
Embodiment
For making purpose of the present invention, technological scheme and advantage clearer, referring to the accompanying drawing embodiment that develops simultaneously, the present invention is described in more detail.
As shown in Figure 1, the high-pressure air road system that is applied to the steady combustion of automotive gas turbines fuel oil of the present invention, comprise the air compressor 102, air separator 103, gas holder 104, solenoid valve 105, the air distributor 106 that connect successively, gas turbine utilizes the Low Pressure Turbine Rotor 100 of self to drive air compressor 102 and provides high-pressure air for air system, high-pressure air is come in from the filter screen 101 of gas turbine bottom, is pressed into gas holder 104 after the filtering of air compressor 102 superchargings, air separator 103 and pressure regulation.When air separator 103 when inlet pressure is lower than the scope of high pressure boundary, air compressor 102 is connected with gas holder 104; When air separator 103 surpassed certain high pressure compass at inlet pressure, air compressor 102 disconnected with gas holder 104.Gas holder 104 Airs, by solenoid valve 105, enter air distributor 106, gas turbine comprises with the fuel nozzle 19 on air atomizing road 21 with without the fuel nozzle 15 on air atomizing road, begin the fuel-oil atmozation system during starting, high-pressure air passes into air atomizing road 21 promoting fuel-oil atmozation, and high-pressure air passes into fuel nozzle 15,19 fuel supply line to blow down Fuel Remained, purge fuel nozzle 15,19 during parking.Air separator 103 comprises filter and pressure controller.Filter can be isolated the impurity such as moisture content in the pressurized gas.Pressure controller can tentatively be regulated the supply gas pressure of pressurized gas to certain high pressure boundary, as between 10MPa～18MPa.Solenoid valve 105 is the solenoid valve of leading type preferably, is used for the break-make of control pressurized gas gas circuit.When gas turbine normally moves, gas holder 104 inflation storing high pressure gas; When the starting of gas turbine machine, when stopping, gas holder 104 venting provide pressurized gas for system.
As shown in Figure 2, the air distributor 1 that adopts among the present invention is that high-pressure air pressure is done fine adjustment, and the high-pressure air after will regulating is distributed to the device that each structure is used.High-pressure air enters pressure regulation bellows 3 by suction tude 2, and unnecessary gas can be discharged from exhaust port 5 in the adjustment process, if pressure is still too high, gas can release from safety valve 4.Air after the adjusting divides two-way to distribute, one the road connects all fuel nozzles fuel supply line of (comprising without the fuel nozzle 15 on air atomizing road with the fuel nozzle 19 on air atomizing road) to exporting I 6, flow out through pressure control valve I 7, blow down nozzle 15,19 and pipeline in Fuel Remained, and cleaning nozzle and pipeline, the switching signal of pilot pressure end I 8 paths is sent by fuel regulation system; The atomizing space gas circuit is connected to exporting II 9 in another road, flows out through pressure control valve II 10 respectively, and the auxiliary fuel atomizing, the switching signal of pilot pressure end II 11 paths is sent by fuel regulation system.
As shown in Figure 3, the pressure control valve 12 of air distributor 106 employings is devices of realizing the primary path switching by the pressure size of hydraulic control mouth 13.When hydraulic control mouth 13 pressure were low, under the effect of spring force, primary path 14 was opened.After the hydraulic control mouth pressure was elevated to certain value, control hydraulic pressure was much larger than spring force, and then the valve conical surface and external bushing end face line contact sealing are closed primary path 14.
As shown in Figure 4, provide and atomize without the main fuel oils of being responsible for of the fuel nozzle 15 on high-pressure air atomizing road among the present invention, guarantee carrying out smoothly of burning.Fuel oil enters spin chamber's 17(details from fuel supply line 16 and does not show), spray the nozzle that enters the firing chamber by spout 18, when engine cut-off, feed high-pressure air in the oil circuit, oil circuit is purged.
As shown in Figure 5, fuel nozzle 19 with high-pressure air atomizing road among the present invention is comprised of fuel nozzle part 20 and air atomizing road 21, and fuel nozzle part 20 structures are identical with 15, when engine cut-off, also feed high-pressure air in the oil circuit, oil circuit is purged.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of making, is equal to replacement, improvement etc., all should be included within the scope of the present invention.
Claims (10)
1. one kind is applied to the steady high-pressure air road system of firing of automotive gas turbines fuel oil, and described system comprises air compressor, air separator, gas holder, solenoid valve, air distributor, it is characterized in that,
Gas turbine comprises with the fuel nozzle on air atomizing road with without the fuel nozzle on air atomizing road,
Air compressor, air separator, gas holder, solenoid valve, air distributor link to each other successively by gas piping,
Air compressor is driven by the low-pressure fuel gas turbine rotor of gas turbine,
Air is pressed into gas holder after strainer filtering, air compressor compression, air separator filtering and pressure regulation, the high-pressure air in the gas holder enters air distributor by solenoid valve,
Air distributor comprises suction tude and outlet I, exports II, and high-pressure air enters air distributor through suction tude, and the outlet I is communicated with the fuel supply line of all fuel nozzles, and the outlet II is communicated with the air atomizing road,
Shut electromagnetic valve when gas turbine normally moves, gas holder inflation storing high pressure gas; Open solenoid valve when gas turbine starting and parking, the gas holder venting provides pressurized gas for system.
2. high-pressure air according to claim 1 road system, it is characterized in that: during the gas turbine starting, high-pressure air passes into described air atomizing road to promote fuel-oil atmozation; When gas turbine stopped, high-pressure air passed into the fuel supply line of all fuel nozzles with the Fuel Remained in blowing fuel nozzle and the fuel supply line, and clean fuel oil nozzle and fuel supply line.
3. high-pressure air according to claim 1 and 2 road system, it is characterized in that: the high-pressure air that air compressor provides, its pressure range is 〉=10MPa.
4. high-pressure air according to claim 1 and 2 road system, it is characterized in that: air separator comprises filter and pressure controller, pressure controller remains on the pressure in the gas holder between 10MPa～18MPa.
5. high-pressure air according to claim 1 and 2 road system, it is characterized in that: air distributor also comprises bellows, safety valve, exhaust port, pressure control valve I, pilot pressure end I, pressure control valve II, pilot pressure end II, pilot pressure end I, II are controlled respectively the switching of valve I, II in order to pilot pressure, the switching signal of pilot pressure end I, II is sent by fuel regulation system, high-pressure air is after bellows is regulated pressure, unnecessary gas can be discharged from exhaust port, if pressure is still too high, gas can release from safety valve.
6. high-pressure air according to claim 5 road system, it is characterized in that: the air after the adjusting divides two-way to distribute, one the tunnel flows into the fuel supply line of all fuel nozzles through pressure control valve I, outlet I, to blow down the Fuel Remained in fuel nozzle and the fuel supply line, another road flows into the air atomizing road through pressure control valve II, outlet II, atomizes with auxiliary fuel.
7. high-pressure air according to claim 6 road system, it is characterized in that: the structure of pressure control valve I, II is identical, includes hydraulic control mouth, primary path, spring, valve and external bushing, when the pressure of hydraulic control mouth hangs down, under the effect of spring force, primary path is opened; After the pressure of hydraulic control mouth is elevated to certain value, control hydraulic pressure greater than spring force, the valve conical surface and external bushing end face line contact sealing, primary path is closed.
8. high-pressure air according to claim 1 and 2 road system, it is characterized in that: all fuel nozzles are swirl atomizer.
9. according to the described high-pressure air of above-mentioned each claim road system, it is characterized in that: for the fuel nozzle without the air atomizing road, when gas turbine stops, pass into high-pressure air in the fuel supply line, oil circuit is purged.
10. according to the described high-pressure air of above-mentioned each claim road system, it is characterized in that: the fuel nozzle with the air atomizing road comprises fuel nozzle part and air atomizing road, fuel nozzle part is identical with structure without the fuel nozzle on air atomizing road, when gas turbine stopped, high-pressure air passed into the fuel supply line in the fuel nozzle part; During the gas turbine starting, high-pressure air passes into the air atomizing road.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109625298A (en) * | 2018-12-07 | 2019-04-16 | 中国航空工业集团公司西安飞机设计研究所 | A kind of oil gas isolating device and the aircraft with it |
| CN109882325A (en) * | 2019-01-30 | 2019-06-14 | 重庆市智权之路科技有限公司 | A kind of generating set oil supply system suitable for hypoxic plateau environment |
| CN111486007A (en) * | 2020-05-06 | 2020-08-04 | 中国船舶重工集团公司第七0三研究所 | Pneumatic control system of gas turbine |
| CN114294126A (en) * | 2021-12-21 | 2022-04-08 | 上海空间推进研究所 | Lean mode ignition starting system and method for airplane gas generation subsystem in low-temperature environment |
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| CN114294126A (en) * | 2021-12-21 | 2022-04-08 | 上海空间推进研究所 | Lean mode ignition starting system and method for airplane gas generation subsystem in low-temperature environment |
| CN114294126B (en) * | 2021-12-21 | 2023-03-17 | 上海空间推进研究所 | Lean mode ignition starting system and method for airplane gas generation subsystem in low-temperature environment |
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| CN102937050B (en) | 2014-07-30 |
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Owner name: CAS HEFEI MICROMINIATURE GAS TURBINE RESEARCH INST Free format text: FORMER OWNER: ENGINEERING THERMO-PHYSICS INST., CHINESE ACADEMY OF SCIENCES Effective date: 20150427 |
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Free format text: CORRECT: ADDRESS; FROM: 100190 HAIDIAN, BEIJING TO: 238000 HEFEI, ANHUI PROVINCE |
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Effective date of registration: 20150427 Address after: 238000 Anhui city in Hefei Province Economic Development Zone Chaohu Huashan Road half soup Service Center Patentee after: CAS HEFEI MICRO GAS TURBINE RESEARCH INSTITUTE CO., LTD. Address before: 100190 Beijing Haidian District North Fourth Ring Road West, No. 11 A202 Patentee before: Institute of Engineering Thermophysics, Chinese Academy of Sciences |