CN116428061A - Oil seal apparatus for gas turbine starter - Google Patents
Oil seal apparatus for gas turbine starter Download PDFInfo
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- CN116428061A CN116428061A CN202310311442.7A CN202310311442A CN116428061A CN 116428061 A CN116428061 A CN 116428061A CN 202310311442 A CN202310311442 A CN 202310311442A CN 116428061 A CN116428061 A CN 116428061A
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- oil
- starter
- switch
- oil seal
- fuel
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- 239000007858 starting material Substances 0.000 title claims abstract description 208
- 239000003921 oil Substances 0.000 claims abstract description 318
- 239000010687 lubricating oil Substances 0.000 claims abstract description 57
- 238000007789 sealing Methods 0.000 claims abstract description 36
- 230000003068 static effect Effects 0.000 claims abstract description 17
- 239000000446 fuel Substances 0.000 claims description 83
- 230000001276 controlling effect Effects 0.000 claims description 22
- 230000001105 regulatory effect Effects 0.000 claims description 11
- 230000003111 delayed effect Effects 0.000 claims description 3
- 239000000314 lubricant Substances 0.000 claims description 2
- 239000000295 fuel oil Substances 0.000 abstract description 12
- 238000003860 storage Methods 0.000 abstract description 8
- 230000001050 lubricating effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 12
- 239000010705 motor oil Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
Images
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
- F02C7/26—Starting; Ignition
-
- 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
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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
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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
- F02C7/32—Arrangement, mounting, or driving, of auxiliaries
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The invention discloses oil sealing equipment of a gas turbine starter, which utilizes an oil sealing oil supply system to provide oil sealing oil for a fuel oil system of the starter, utilizes an oil lubricating oil supply system to provide lubricating oil for the oil lubricating system of the starter, and utilizes a power supply and a control system to provide stable power for the starter, and can control the oil sealing mode of the starter to switch among a static oil sealing mode, a dynamic oil sealing mode and a cold running mode, so that independent oil sealing work can be carried out on the gas turbine starter on the outer field surface to prevent the starter from exceeding a storage period, and any one of the static oil sealing mode, the dynamic oil sealing mode and the cold running mode can be selected according to actual oil sealing requirements, thereby greatly improving the universality of the oil sealing equipment.
Description
Technical Field
The invention relates to the technical field of starter outfield maintenance, in particular to oil sealing equipment of a gas turbine starter.
Background
The gas turbine starter (hereinafter referred to as "starter") is used as mechanical airborne equipment and is assembled on various aircrafts, and is provided with independent fuel oil and lubricating oil systems, when the starter is disassembled from the aircrafts, in order to prevent abnormal conditions such as rust and the like of the fuel oil systems and the lubricating oil systems, internal oil sealing treatment is required to be carried out within 24 hours after the starter is disassembled, so that the fuel oil systems in the starter are filled with oil sealing oil and the lubricating oil systems are filled with lubricating oil, and long-term oil sealing storage of the starter is realized. At present, an oil seal mode of a starter is an onboard oil seal, and when the starter is installed on an airplane, the onboard oil seal is developed by utilizing a main engine oil seal device of the airplane and an airplane operation platform. However, the on-board oil seal has the following disadvantages:
1. the joint of the main engine oil seal device needs to be refitted, meanwhile, the main engine oil seal device and the aircraft operation platform are large in mass and complex in structure, cannot be independently placed on the ground to independently operate, and needs a long pipeline to be connected with a starter positioned on the back of the aircraft, so that the operation is very inconvenient.
2. The aircraft end is not provided with a starter oil seal control program, the on state of a starter ignition system needs to be manually changed to prevent the safety problem caused by starter ignition or high voltage electricity, and meanwhile, a large amount of aircraft pipelines need to be disassembled and residual oil is collected by adopting a guide pipe mode, so that the workload of the aircraft is greatly increased.
3. In the normal working process of the starter, fuel oil of the fuel oil system is sprayed into a combustion chamber to burn, high-temperature and high-pressure fuel gas is formed to act on the turbine to do work, and then the fuel gas is discharged from an exhaust port. When the oil seal fuel system is used, the oil seal oil can be filled in the whole fuel system and is sprayed into the combustion chamber, at the moment, the oil seal oil can not burn, but is discharged from the exhaust port through the turbine, a large amount of oil seal oil is blown out from the exhaust port of the starter and then falls back into the aircraft body and the main engine cabin, the cleaning difficulty is extremely high, and the hidden danger of ignition during next test run exists.
More importantly, when the starter is detached from the engine oil seal with complicated and great hidden trouble and placed on the ground for storage, the oil seal storage period is only 3 months, once the oil seal storage period is reached, the oil seal needs to be sealed again immediately, and no equipment can realize the ground oil seal work of a starter fuel and lubricating oil system at present, so that the starter can be directly caused to exceed the storage limit.
Disclosure of Invention
The invention provides oil sealing equipment of a gas turbine starter, which aims to solve the technical problem that the ground oil sealing of the starter cannot be realized in the prior art.
According to an aspect of the present invention, there is provided an oil seal apparatus of a gas turbine starter, comprising:
the power supply and control system is used for providing a stable power supply for the starter and controlling the starter oil seal mode to switch among a static oil seal mode, a dynamic oil seal mode and a cold running mode;
the oil seal oil supply system is used for supplying oil seal oil to the fuel system of the starter in a static oil seal mode or a dynamic oil seal mode;
and the lubricating oil supply system is used for providing lubricating oil for the lubricating oil system of the starter in the dynamic oil seal mode or the cold running mode.
Further, the power supply and control system comprises a power supply, a start-stop switch, a first relay, a motor switch, an oil supply switch and an oil pump switch, wherein the power supply is used for providing a stable direct current power supply for an electric booster pump, a starter motor, a stop solenoid valve and a state readjustment solenoid valve of an oil seal oil supply system, the electric booster pump, the starter motor, the stop solenoid valve and the state readjustment solenoid valve are connected in parallel and then connected with the start-stop switch in series, the start-stop switch is used for controlling the start-stop of the whole system, the first relay is used for controlling the on-off of a power supply branch where the starter motor is located, the motor switch is arranged on the power supply branch where the first relay is located and used for controlling the start-stop of the starter motor, the stop solenoid valve and the state readjustment solenoid valve are connected in parallel and then connected with the oil supply switch in series, the oil supply switch is used for controlling the opening or closing of a fuel outlet of a fuel adjusting accessory of the starter, and the oil pump switch is arranged on the power supply branch where the electric booster pump is located.
Further, when the start-stop switch and the oil pump switch are closed and the motor switch and the oil supply switch are opened, the starter motor does not work, the fuel outlet of the fuel regulating accessory and the baffle valve of the starter fuel system are closed, oil sealing oil is provided for the fuel regulating accessory of the starter only through the electric booster pump of the oil sealing oil supply system, and the fuel regulating accessory of the starter is only sealed, so that static sealing of the starter is realized.
Further, when the start-stop switch, the motor switch, the oil supply switch and the oil pump switch are closed simultaneously, the starter motor works and drives the fuel booster pump and the lubricating oil booster pump in the starter to operate, the fuel outlet of the fuel regulating accessory and the baffle valve of the fuel system of the starter are opened, the electric booster pump of the oil seal oil supply system and the fuel booster pump in the starter pump oil seal oil together to the fuel system of the starter so as to seal the whole fuel system of the starter, and meanwhile, the lubricating oil booster pump in the starter pumps lubricating oil to the lubricating oil system of the starter so as to seal the lubricating oil system of the starter, thereby realizing dynamic oil seal of the starter.
Further, when the start-stop switch and the motor switch are closed and the oil supply switch and the oil pump switch are opened, the starter motor works and drives the fuel booster pump and the lubricating oil booster pump in the starter to operate, the electric booster pump of the oil seal oil supply system does not work, the fuel outlet of the fuel regulating accessory and the baffle valve of the starter fuel system are closed, lubricating oil is pumped from the lubricating oil supply system only through the lubricating oil booster pump in the starter, and only the lubricating oil system of the starter is sealed, so that the cold operation of the starter is realized.
Further, the automatic control device also comprises a time relay, wherein the starter motor, the stopping electromagnetic valve and the state readjusting electromagnetic valve are connected in parallel and then connected in series with the time relay, and the time relay is used for controlling the power supply branch of the starter motor, the stopping electromagnetic valve and the state readjusting electromagnetic valve to be disconnected in a delayed manner.
Further, the power supply comprises a charging power supply, a battery and a second relay, wherein the charging power supply is used for converting alternating current into direct current, the battery is used for directly providing direct current, the charging power supply and the battery adopt a parallel power supply mode, the second relay is used for controlling on-off of a battery charging circuit, the second relay, a start-stop switch and the charging power supply form a series loop, and when the start-stop switch is closed, the second relay is electrified and controls the charging circuit of the battery to be closed, so that the charging power supply charges the battery.
Further, the engine oil seal device also comprises a residual oil collecting system for collecting residual oil discharged in the process of the engine oil seal.
Further, the residual oil collecting system comprises an exhaust guiding device, a guiding pipe and a residual oil collecting container, wherein the exhaust guiding device is arranged at an exhaust port of the starter and used for guiding oil-sealed oil blown out from the exhaust port to a proper direction, and the guiding pipe is respectively connected with a fuel oil discharging nozzle, a fuel oil return nozzle, a lubricating oil return nozzle, an oil discharging port of the exhaust guiding device and the residual oil collecting container of the starter.
Further, the first relay and the second relay are electromagnetic current relays capable of bearing 1000A current.
The invention has the following effects:
according to the oil sealing equipment of the gas turbine starter, the oil sealing oil is provided for the fuel system of the starter by utilizing the oil sealing oil supply system, lubricating oil is provided for the lubricating oil system of the starter by utilizing the lubricating oil supply system, meanwhile, a stable power supply is provided for the starter by utilizing the power supply and the control system, and the oil sealing mode of the starter can be controlled to be switched among a static oil sealing mode, a dynamic oil sealing mode and a cold running mode, so that independent oil sealing work can be carried out on the gas turbine starter on the outer field surface to prevent the starter from exceeding the storage period, any one of the static oil sealing mode, the dynamic oil sealing mode and the cold running mode can be selected according to actual oil sealing requirements, and the universality of the oil sealing equipment is greatly improved.
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 invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
fig. 1 is a schematic diagram of an oil seal apparatus of a gas turbine starter according to a preferred embodiment of the present invention.
Fig. 2 is a schematic circuit diagram of a power supply and control system according to a preferred embodiment of the present invention.
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.
It will be appreciated that as shown in fig. 1, the preferred embodiment of the present invention provides an oil sealing device for a gas turbine starter for oil sealing operation of the gas turbine starter on an external site, wherein the starter is a mechanical type on-board device, which is itself designed with a fuel booster pump and a lubricant booster pump, and can be rotated by a starter motor, but does not have the functions of self-supplying electric energy and externally hanging an oil tank, and in order to realize the oil sealing operation of the starter, an external energy system is required to provide a stable power supply for the starter to drive the starter motor to operate, and to control a stop solenoid valve and a state readjusting solenoid valve of the starter to be turned on to control the opening of an oil path of the fuel system, and a system for continuously supplying clean oil sealing medium is required to be designed from the outside. The oil seal equipment specifically comprises a power supply and control system, an oil seal oil supply system and an oil seal oil supply system, wherein the power supply and control system is used for providing a stable power supply for a starter and controlling the switching of an oil seal mode of the starter among a static oil seal mode, a dynamic oil seal mode and a cold operation mode, the oil seal oil supply system is used for providing oil seal oil for a fuel system of the starter in the static oil seal mode or the dynamic oil seal mode, and the oil seal oil supply system is used for providing lubricating oil for the oil seal oil system of the starter in the dynamic oil seal mode or the cold operation mode, so that the corresponding oil seal mode can be selected through the power supply and the control system according to actual oil seal requirements to conduct oil seal operation on the fuel system and/or the oil seal oil system of the starter.
It can be appreciated that the oil seal device of the gas turbine starter of this embodiment provides oil seal oil for the fuel system of the starter by using the oil seal oil supply system, provides lubricating oil for the lubricating oil system of the starter by using the lubricating oil supply system, and simultaneously provides stable power for the starter by using the power supply and the control system, and can control the switching of the oil seal mode of the starter among the static oil seal mode, the dynamic oil seal mode and the cold operation mode, so that the gas turbine starter can be independently oil-sealed in the external field to prevent the starter from exceeding the shelf life, and any one of the static oil seal mode, the dynamic oil seal mode and the cold operation mode can be selected according to the actual oil seal requirement, thereby greatly improving the universality of the oil seal device.
The oil seal oil supply system specifically comprises an oil seal oil tank, an electric booster pump, an oil seal oil filter and an oil pressure gauge, wherein the oil seal oil tank, the electric booster pump and the oil seal oil filter are sequentially connected and then connected with a fuel system inlet of a starter through a quick-release connector, the oil seal oil tank is used for storing oil seal oil, a 5L stainless steel oil tank is specifically adopted, the electric booster pump is used for pumping the oil seal oil from the oil seal oil tank for pressurized conveying, the oil seal oil filter is used for filtering the conveyed oil seal oil, and the oil pressure gauge is used for detecting pumping pressure of the oil seal oil in real time. The lubricating oil supply system comprises a lubricating oil tank and a lubricating oil filter, wherein the lubricating oil tank is used for storing lubricating oil, a stainless steel tank with the volume of 5L is specifically adopted, the lubricating oil tank is connected with a lubricating oil system inlet of the starter through a quick-release connector, and the lubricating oil filter is arranged on a lubricating oil conveying pipeline and is used for filtering lubricating oil.
It will be appreciated that the power and control system includes a power source for providing a stable dc power source for an electric booster pump, a starter motor, a starter-fitted parking solenoid valve and a state readjusting solenoid valve of an oil-sealed oil supply system, a start-stop switch, a first relay, a motor switch, an oil supply switch and an oil pump switch, as shown in fig. 2. The electric booster pump, the starter motor, the parking electromagnetic valve and the state readjusting electromagnetic valve are connected in parallel and then are connected in series with a start-stop switch, the start-stop switch is used for controlling the start-stop of the whole system, a first relay is used for controlling the on-off of a power supply branch where the starter motor is located, the motor switch is arranged on the power supply branch where the first relay is located and used for controlling the start-stop of the starter motor, the parking electromagnetic valve and the state readjusting electromagnetic valve are connected in parallel and then are connected in series with an oil supply switch, the oil supply switch is used for controlling the opening or closing of a fuel outlet of a fuel adjusting accessory of the starter, and the oil pump switch is arranged on the power supply branch where the electric booster pump is located. When the whole fuel system of the starter needs to be oil sealed, a stopping electromagnetic valve and a state readjusting electromagnetic valve are required to be connected, so that the electromagnetic valve attracts the baffle valve to open a fuel system oil way. It can be understood that when the motor switch is closed, the first relay is electrified and closed, so that the power supply branch circuit where the starter motor is controlled to be connected, and the starter motor can be started normally; when the motor switch is turned on, the first relay is powered off and turned on, the power supply branch where the starter motor is located is disconnected, and the starter motor cannot be started. When the oil supply switch is turned off, the fuel outlet of the fuel regulation accessory of the starter is closed, the oil seal oil cannot be introduced into a subsequent oil way of the fuel system, for example, the oil seal oil cannot be conveyed to a combustion chamber, and at the moment, even if the oil seal oil supply system pumps the oil seal oil to the starter, only the oil seal operation can be carried out on the fuel regulation accessory of the starter, but the oil seal operation cannot be carried out on the whole fuel system; when the oil supply switch is closed, the fuel outlet of the fuel regulating accessory of the starter is opened, and the oil seal oil can be smoothly introduced into the subsequent oil way of the fuel system, so that the whole fuel system of the starter can be subjected to oil seal operation. When the oil pump switch is turned on, a power supply branch of an electric booster pump of the oil seal oil supply system is disconnected, and the electric booster pump does not work; when the oil pump switch is closed, the power supply branch of the electric booster pump of the oil seal oil supply system is connected, and the electric booster pump works normally.
It can be understood that when the start-stop switch and the oil pump switch are closed and the motor switch and the oil supply switch are disconnected, the power supply branch of the starter motor, the stop electromagnetic valve and the state readjusting electromagnetic valve are disconnected, the starter motor does not work, the fuel booster pump and the lubricating oil booster pump in the starter do not work, the oil seal operation of the starter lubricating oil system cannot be realized, the fuel outlet of the fuel adjusting accessory and the baffle valve of the starter fuel system are closed, the oil way of the fuel system of the starter is not opened, oil seal oil is provided for the fuel adjusting accessory of the starter only through the electric booster pump of the oil seal oil supply system, and the fuel adjusting accessory of the starter is only sealed, so that the static seal of the starter is realized. The static seal of the starter is suitable for an oil seal operation scene when the starter fails, for example, when a rotor of the starter fails, oil seal operation is only carried out on a combustion adjusting accessory of the starter, and oil seal operation is not carried out on a rotor part.
When the start-stop switch, the motor switch, the oil supply switch and the oil pump switch are closed simultaneously, the starter motor works and drives the fuel booster pump and the lubricating oil booster pump in the starter to operate, at the moment, the fuel outlet of the fuel regulating accessory and the baffle valve of the fuel system of the starter are opened, the fuel passage of the starter is opened, and the electric booster pump of the oil seal oil supply system and the fuel booster pump in the starter pump oil seal oil together to the fuel system of the starter so as to seal the whole fuel system of the starter, and simultaneously, the lubricating oil booster pump in the starter pumps lubricating oil to the lubricating oil system of the starter so as to seal the lubricating oil system of the starter, thereby realizing dynamic oil seal of the starter. The dynamic oil seal of the starter is suitable for a normal oil seal operation scene of the starter, and simultaneously oil seals a fuel system and a lubricating oil system of the starter and stores the oil.
When the start-stop switch and the motor switch are closed and the oil supply switch and the oil pump switch are disconnected, the power supply branch of the starter motor, the power supply branch of the stop electromagnetic valve and the state readjustment electromagnetic valve and the power supply branch of the electric booster pump are disconnected, the starter motor works and drives the fuel booster pump and the lubricating oil booster pump in the starter to operate, the electric booster pump of the oil seal oil supply system does not work, the stop electromagnetic valve and the state readjustment electromagnetic valve are not connected, so that the fuel outlet of the fuel adjustment accessory and the baffle valve of the starter fuel system are closed, the whole fuel system of the starter is closed, lubricating oil is pumped from the lubricating oil supply system only through the lubricating oil booster pump in the starter at the moment, and only the lubricating oil system of the starter is sealed, thereby realizing cold operation of the starter.
It can be understood that when the oil seal operation is finished, the start-stop switch is pressed again, and when an emergency is encountered in the oil seal process, the start-stop switch can be pressed again, so that the starter can stop at any time.
It can be understood that the invention can realize the independent control of the starter motor circuit, the starter solenoid valve circuit and the electric booster pump circuit by designing the motor switch, the oil supply switch and the oil pump switch, thereby realizing the random switching of the starter oil seal mode among the static oil seal mode, the dynamic oil seal mode and the cold running mode, meeting the oil seal operation requirements in various scenes and greatly improving the universality of oil seal equipment.
It can be understood that the power supply specifically includes charging source, battery and second relay, charging source is used for converting alternating current into direct current, the battery is used for directly providing direct current, charging source and battery take the parallelly connected power supply mode, second relay is used for controlling battery charging circuit's break-make, second relay forms the series loop with start-stop switch, charging source, when start-stop switch closed, the charging circuit of second relay switching on and control battery is closed, realizes that charging source charges to the battery. The mode of supplying power together by the charging power supply and the battery can meet the requirement of continuously supplying a large amount of electric energy for the starter, and after the start-stop switch is closed, the battery can be automatically controlled to charge by the second relay. The charging power supply specifically comprises a transformer and a rectifier, wherein the transformer is connected with a 220V alternating current power supply and then subjected to voltage reduction treatment, and the transformer is converted into 27V direct current through the rectifier. The battery is a 27V/300F capacitor battery with high charge and discharge speed, so as to ensure the continuous power supply requirement. In addition, the output power of the starter motor reaches 2kW, the starting instantaneous current is between 800A and 900A, the steady-state current is about 300A, and the charging current of the battery is also larger, so that the first relay and the second relay both adopt electromagnetic current relays capable of bearing 1000A of current. In addition, a 300A fuse is also arranged on the power supply branch where the starter motor is positioned and used for protecting the starter motor.
Preferably, the power supply and control system further comprises a time relay, wherein the starter motor, the stopping electromagnetic valve and the state readjusting electromagnetic valve are connected in parallel and then connected in series with the time relay, and the time relay is used for controlling the power supply branches of the starter motor, the stopping electromagnetic valve and the state readjusting electromagnetic valve to be disconnected in a delayed manner, so that automatic stopping of oil seal operation is achieved. For example, when the dynamic oil seal of the starter is performed, according to the starter oil seal program, after the start-stop switch, the motor switch, the oil supply switch and the oil pump switch are turned on, the starter operates and blows out the oil seal oil, the time relay is turned off after the switch is turned on for 10 seconds, the power supply branches of the motor and the electromagnetic valve are turned off, and the oil seal is ended. The time relay adopts a pneumatic relay which is disconnected by time delay, and the specific delay disconnection time can be set according to the actual oil seal requirement.
In addition, the power supply and control system further comprises an electric booster pump speed regulator for controlling the rotating speed of the electric booster pump so as to regulate the pre-pressing of the oil seal oil.
In addition, the oil seal device further comprises a residual oil collecting system for collecting residual oil discharged in the starter oil seal process. The residual oil collecting system comprises an exhaust guiding device, a guiding pipe and a residual oil collecting container, wherein the exhaust guiding device is arranged at an exhaust port of the starter and used for guiding oil-sealed oil blown out from the exhaust port to a proper direction, so that the oil-sealed oil is prevented from drifting around and is convenient to clean, and the guiding pipe is respectively connected with a fuel oil discharging nozzle, a fuel oil return nozzle, a lubricating oil return nozzle, an oil discharging port of the exhaust guiding device and the residual oil collecting container of the starter. The exhaust guiding device uses a flanging of an exhaust outlet of the starter as a supporting and fixing platform, an interface of the exhaust guiding device is attached to the flanging of the exhaust outlet and placed on the flanging platform, and a fixing claw on the exhaust guiding device is used for grabbing the flanging to achieve fixing.
It can be understood that the inventor of the invention has completed the actual manufacture of the oil seal device, and has selected 10 ground detached starters to perform internal dynamic oil seal treatment, in the oil seal process, the internal oil pressure, each relevant control signal and operation data are all normal, the oil inlet and return system can work normally, the exhaust guide device can effectively prevent the oil from diffusing, and the oil seal storage of the internal fuel oil system of the starter can be successfully realized on the ground without external resources.
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 oil seal apparatus for a gas turbine starter, comprising:
the power supply and control system is used for providing a stable power supply for the starter and controlling the starter oil seal mode to switch among a static oil seal mode, a dynamic oil seal mode and a cold running mode;
the oil seal oil supply system is used for supplying oil seal oil to the fuel system of the starter in a static oil seal mode or a dynamic oil seal mode;
and the lubricating oil supply system is used for providing lubricating oil for the lubricating oil system of the starter in the dynamic oil seal mode or the cold running mode.
2. The oil seal apparatus of a gas turbine starter as set forth in claim 1, wherein the power supply and control system includes a power supply, a start-stop switch, a first relay, a motor switch, an oil supply switch, and an oil pump switch, the power supply is used for providing a stable dc power supply for an electric booster pump, a starter motor, a stop solenoid valve and a state readjustment solenoid valve of the oil seal oil supply system, wherein the electric booster pump, the starter motor, the stop solenoid valve and the state readjustment solenoid valve are connected in parallel and then connected in series with the start-stop switch, the start-stop switch is used for controlling start-stop of the whole system, the first relay is used for controlling on-off of a power supply branch where the starter motor is located, the motor switch is disposed on the power supply branch where the first relay is located and used for controlling start-stop of the starter motor, the stop solenoid valve and the state readjustment solenoid valve are connected in parallel and then connected in series with the oil supply switch, the oil supply switch is used for controlling opening or closing of a fuel outlet of a fuel adjusting accessory of the starter, and the oil pump switch is disposed on the power supply branch where the electric booster pump is located.
3. The oil seal apparatus of a gas turbine starter as set forth in claim 2, wherein when the start-stop switch and the oil pump switch are closed and the motor switch and the oil supply switch are opened, the starter motor is not operated, the fuel outlet of the fuel regulating attachment and the shutter valve of the starter fuel system are both closed, the oil seal oil is supplied to the fuel regulating attachment of the starter only by the electric booster pump of the oil seal oil supply system, and the fuel regulating attachment of the starter is only oil-sealed, thereby achieving the static seal of the starter.
4. The oil seal apparatus of a gas turbine starter as set forth in claim 2, wherein when the start-stop switch, the motor switch, the oil supply switch, and the oil pump switch are simultaneously closed, the starter motor operates and drives the fuel booster pump and the oil booster pump in the starter to operate, the fuel outlet of the fuel regulating accessory and the shutter of the starter fuel system are both opened, the electric booster pump of the oil seal oil supply system and the fuel booster pump in the starter pump oil seal oil together to the fuel system of the starter to seal the entire fuel system of the starter, and simultaneously the oil booster pump in the starter pumps lubricating oil to the oil system of the starter to seal the oil system of the starter, thereby realizing dynamic oil seal of the starter.
5. The oil seal apparatus of a gas turbine starter as set forth in claim 2, wherein when the start-stop switch and the motor switch are closed and the oil supply switch and the oil pump switch are opened, the starter motor is operated and drives the fuel booster pump and the oil pump in the starter to operate, the electric booster pump of the oil seal oil supply system is not operated, the fuel outlet of the fuel adjusting accessory and the shutter valve of the starter fuel system are both closed, and the lubricating oil is pumped from the oil supply system only by the oil pump in the starter, and only the oil pump of the starter is sealed, thereby realizing the cold operation of the starter.
6. The oil seal apparatus of a gas turbine starter as set forth in claim 2 further comprising a time relay connected in series with the starter motor, the stop solenoid valve and the status readjustment solenoid valve after being connected in parallel, the time relay being adapted to control a delayed disconnection of a power supply branch of the starter motor, the stop solenoid valve and the status readjustment solenoid valve.
7. The oil seal apparatus of a gas turbine starter as set forth in claim 2, wherein the power supply includes a charging power supply for converting alternating current into direct current, a battery for directly supplying direct current, the charging power supply and the battery being powered in parallel, and a second relay for controlling on-off of a battery charging circuit, the second relay forming a series loop with the start-stop switch and the charging power supply, the second relay being energized and controlling the charging circuit of the battery to be closed when the start-stop switch is closed, to charge the battery by the charging power supply.
8. The oil seal apparatus of a gas turbine starter as set forth in claim 1, further comprising a residual oil collection system for collecting residual oil discharged during oil sealing of the starter.
9. The oil seal apparatus of a gas turbine starter as set forth in claim 8, wherein said residual oil collecting system includes an exhaust guide means installed at an exhaust port of the starter for guiding the oil seal oil blown out from the exhaust port to an appropriate direction, a guide pipe connected to a fuel discharge nozzle, a fuel return nozzle, a lubricant return nozzle, an oil discharge port of the exhaust guide means, and a residual oil collecting container, respectively.
10. The gas turbine starter oil seal apparatus of claim 7 wherein said first relay and said second relay each employ an electromagnetic current relay capable of withstanding 1000A of current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310311442.7A CN116428061A (en) | 2023-03-28 | 2023-03-28 | Oil seal apparatus for gas turbine starter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310311442.7A CN116428061A (en) | 2023-03-28 | 2023-03-28 | Oil seal apparatus for gas turbine starter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116428061A true CN116428061A (en) | 2023-07-14 |
Family
ID=87091857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310311442.7A Pending CN116428061A (en) | 2023-03-28 | 2023-03-28 | Oil seal apparatus for gas turbine starter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116428061A (en) |
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2023
- 2023-03-28 CN CN202310311442.7A patent/CN116428061A/en active Pending
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