CN110007702B - High-pressure and automatic-control aviation fuel test bed oil supply system - Google Patents
High-pressure and automatic-control aviation fuel test bed oil supply system Download PDFInfo
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- CN110007702B CN110007702B CN201910254652.0A CN201910254652A CN110007702B CN 110007702 B CN110007702 B CN 110007702B CN 201910254652 A CN201910254652 A CN 201910254652A CN 110007702 B CN110007702 B CN 110007702B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/003—Machine valves
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
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- Automation & Control Theory (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Fluid-Pressure Circuits (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a high-pressure and automatically-controlled aviation fuel test bed oil supply system, which comprises a hydraulic subsystem, a pneumatic subsystem and a control system, wherein the hydraulic subsystem is connected with the pneumatic subsystem; the hydraulic system is used for providing fuel medium with controllable pressure and temperature; the pneumatic system is used for providing air source power for the opening and closing action of the pneumatic ball valve and discharging oil in the test piece; the control system is used for controlling the hydraulic system and the pneumatic system, acquiring and processing data and protecting power distribution. The invention can be used for fluid delivery of low-viscosity media, and the highest output pressure can reach 15 MPa; the heat exchanger has the function of adjusting the temperature of the fuel medium, and exchanges heat with the heat conduction oil through the heat exchanger to adjust the temperature of the fuel medium.
Description
Technical Field
The invention relates to a test bed oil supply system, in particular to a high-pressure and automatic control aviation fuel test bed oil supply system.
Background
The aviation fuel oil test bed oil supply system is a complete set of oil supply system for testing components such as aviation fuel oil pump valves, requires remote automatic adjustment of medium temperature and pressure, has an explosion-proof characteristic, and simultaneously requires no leakage of the system.
Most of the existing various aviation fuel test bed oil supply systems adopt a manual adjusting mode, the adjusting precision is low, the pressure is not high, the system leakage amount is large, and the universality is not realized.
Disclosure of Invention
The invention aims to provide a high-pressure and automatic-control aviation fuel test bed oil supply system which can realize fuel supply within a certain pressure, temperature and flow range and is used as a medium source of various aviation fuel pump valves and other test beds.
The technical solution for realizing the purpose of the invention is as follows: a high-pressure and automatically-controlled aviation fuel test bed oil supply system comprises a hydraulic subsystem, a pneumatic subsystem and a control system; the hydraulic system is used for providing fuel medium with controllable pressure and temperature; the pneumatic system is used for providing air source power for the opening and closing action of the pneumatic ball valve and discharging oil in the test piece; the control system is used for controlling the hydraulic system and the pneumatic system and acquiring and processing data.
Compared with the prior art, the invention has the beneficial effects that: (1) the invention can be used for fluid delivery of low-viscosity media, the highest output pressure can reach 15MPa, and the flow is not lower than 45L/min; (2) the device has the function of adjusting the temperature of the fuel medium, and adjusts the temperature of the fuel medium by exchanging heat with heat conduction oil through a heat exchanger, wherein the temperature adjusting range can reach 0-70 ℃, and the deviation is within +/-2 ℃; (3) the on-off of an oil way is controlled in a pneumatic ball valve mode, and the sealing material is polytetrafluoroethylene, so that the extremely small leakage amount can be ensured, the aging is not easy, and the maintenance workload is reduced; (4) the connection form of the oil line pipe fitting is 60-degree conical metal seal, so that the oil line pipe fitting is free of maintenance throughout the life; 5) the output pressure of the fuel can be remotely and automatically controlled through the proportional overflow valve,
drawings
FIG. 1 is a schematic diagram of a hydraulic system in an oil supply system of an aviation fuel test bed of the invention.
FIG. 2 is a schematic diagram of a pneumatic system in the oil supply system of the aviation fuel test bed of the invention.
Detailed Description
A high-pressure and automatically-controlled aviation fuel test bed oil supply system comprises a hydraulic subsystem, a pneumatic subsystem and a control system; the hydraulic system is used for providing fuel medium with controllable pressure and temperature; the pneumatic system is used for providing air source power for the opening and closing action of the pneumatic ball valve and discharging oil in the test piece; the control system is used for controlling the hydraulic system and the pneumatic system and acquiring and processing data.
With reference to fig. 1, the hydraulic subsystem is an open system, and mainly comprises an oil tank 1, a first filter 2.1, a second filter 2.2, a third filter 2.3, a first temperature sensor 3.1, a second temperature sensor 3.2, a liquid level relay 4, a liquid level meter 6, an air filter 7, a pump motor group 9, a first check valve 10.1, a second check valve 10.2, a plate heat exchanger 11, a heat conduction oil all-in-one machine 12, first to fifth pneumatic ball valves 13.1 to 13.5, a direct-acting overflow valve 14, a proportional overflow valve 15, a pressure gauge 16, an energy accumulator 17, a liquid level sensor 18, a throttle valve 19 and a pressure sensor 20;
the heat conducting oil all-in-one machine 12 is connected with a plate type heat exchanger 11 through a manual ball valve, one end of the plate type heat exchanger 11 is connected with an oil tank 1 through a second check valve 10.2 and a third filter 2.3, the other end of the plate type heat exchanger is connected with one end of a first pneumatic ball valve 13.1, a direct-acting overflow valve 14, a proportional overflow valve 15, a third pneumatic ball valve 13.3 and a throttle valve 19, the other ends of the first pneumatic ball valve 13.1, the direct-acting overflow valve 14 and the proportional overflow valve 15 are connected with one end of the second filter 2.2, and the other end of the second filter 2.2 is connected with the oil tank 1 through the first check valve 10.1, a pump motor set 9 and the first filter; the other end of the throttle valve 19 is connected with a test piece through a fourth pneumatic ball valve 13.4 and a fifth pneumatic ball valve 13.5, the other end of a third pneumatic ball valve 13.3 is respectively connected with a second pneumatic ball valve 13.2, an energy accumulator 17 and the test piece, and the other end of the second pneumatic ball valve 13.2 is connected with a second filter 2.2; the pressure gauge 16 is connected with the direct-acting overflow valve 14 and the proportional overflow valve 15; the liquid level sensor 18, the second temperature sensor 3.2 and the pressure sensor 20 are respectively connected with a test piece; the first temperature sensor 3.1, the liquid level relay 4, the liquid level meter 6 and the air filter 7 are connected with the oil tank 1.
With reference to fig. 2, the pneumatic system includes an air source 21, a triple 22, a throttle valve 23, a filtering pressure reducing valve 24, a packaging valve plate 25 and a five-way electromagnetic directional valve 26;
the triple piece 22 is used for adjusting the pressure, the oil mist quantity and the cleanliness of the air source 21, five-way electromagnetic directional valves are used for controlling the on-off of a pneumatic ball valve in a hydraulic system so as to control the on-off of a related oil path of the hydraulic system, the other five-way electromagnetic directional valve is used for discharging internal oil of a test piece and adjusting the pressure lower than 1MPa, the filtering and reducing valve 24 is used for adjusting the air outlet pressure and filtering pollutants, the throttle valve 23 is used for adjusting the air inlet flow speed, and the integrated valve plate 25 is used for installing the five-way electromagnetic directional valve.
The control system mainly comprises a power distribution unit, a control unit and a data acquisition and processing unit, provides an oil source with constant pressure and temperature by controlling related components, and simultaneously acquires the pressure, the temperature and the running state of the motor of an oil circuit in real time.
The present invention will be described in detail with reference to examples.
Examples
The utility model provides a high pressure, automatically controlled aviation fuel test bench oil feeding system, includes: a hydraulic subsystem, a pneumatic subsystem and a control system;
the hydraulic system is mainly used for providing fuel medium with controllable pressure and temperature; the pneumatic system is used for providing air source power for the opening and closing action of the pneumatic ball valve and discharging oil in the test piece; the control system is used for controlling the hydraulic system and the pneumatic system, acquiring and processing data and protecting power distribution;
referring to fig. 1, the hydraulic subsystem is an open system and mainly comprises an oil tank 1, a filter 2, a temperature sensor 3, a liquid level relay 4, a hose assembly 5, a liquid level meter 6, an air filter 7, a manual ball valve 8, a pump motor group 9, a one-way valve 10, a plate heat exchanger 11, a heat conduction oil all-in-one machine 12, a pneumatic ball valve 13, a direct-acting overflow valve 14, a proportional overflow valve 15, a pressure gauge 16, an energy accumulator 17, a liquid level sensor 18, a throttle valve 19 and a pressure sensor 20;
with reference to fig. 2, the pneumatic system mainly comprises an air source 21, a triple piece 22, a throttle valve 23, a filtering pressure reducing valve 24, a packaging valve plate 25, a five-way electromagnetic directional valve 26 and a pipeline;
the triple piece 22 is used for adjusting the pressure, the oil mist quantity and the cleanliness of the air source 21, the five-way electromagnetic directional valves 26.1-26.5 are used for controlling the on-off of a pneumatic ball valve in a hydraulic system so as to control the on-off of a related oil way of the hydraulic system, the five-way electromagnetic directional valve 26.6 is used for discharging internal oil of a test piece and adjusting the pressure lower than 1MPa, the filtering and reducing valve 24 is used for adjusting the air outlet pressure and filtering pollutants, the throttle valve 23 is used for adjusting the air inlet flow rate, and the integrated valve plate 25 is used for installing the five-way electromagnetic directional valve.
The control system mainly comprises a power distribution unit, a control unit and a data acquisition and processing unit, provides an oil source with constant pressure and temperature by controlling related components, and simultaneously acquires the pressure and temperature of an oil path and the running state of a motor in real time;
the working principle of the oil supply system is as follows: when a test with a specified temperature is carried out, the heat conducting oil all-in-one machine 12 is started to regulate the temperature to the specified temperature, the five-way electromagnetic valve 26.1 is reversed, and the pneumatic ball valve 13.1 is opened; when the oil temperature needs to be adjusted, the oil temperature is adjusted by a temperature adjusting system which is composed of an oil tank temperature sensor 3.1, a pump motor set 9, a plate heat exchanger 11, a heat conduction oil all-in-one machine 12 and the like. The pressure oil output by the pump motor set 9 passes through the one-way valve 10.1, the high-pressure filter 2.2, the pneumatic ball valve 13.2 and the pipeline, and the oil meeting the test requirement temperature is output.
During the test, when the system needs to output a stable constant pressure oil source, the pump motor set 9 is started, oil in the oil tank 1 is introduced into the high-pressure plunger pump through the filter 2.1, the high-pressure plunger pump outputs high-pressure oil which passes through the one-way valve 10.1 and the filter 2.2 and is then connected with the proportional overflow valve 15 in parallel, at the moment, the pneumatic ball valve 13.2 and the pneumatic ball valve 13.4 are opened to enable the oil to circularly flow in a no-load mode, then the pneumatic ball valve 13.4 is closed, the proportional overflow valve 15 is adjusted to the required pressure, the pneumatic ball valve 13.2 is closed to enter the pressure maintaining test process, and the energy accumulator 17 is used for absorbing pressure fluctuation and. When the required oil pressure is below 1.0MPa, the pressure of the proportional overflow valve 15 is adjusted to be higher than 1MPa, the air inlet 6B of the pneumatic ball valve 13.5 is connected with compressed gas with controllable pressure, the pneumatic ball valve 13.5 is opened, and the pressure of the oil in the test piece is adjusted by adjusting the pressure of the filtering and reducing valve 24. The system pressure can realize stepless regulation of 0 MPa-15 MPa.
After the test is finished, the pneumatic ball valve 13.2 is closed, the pneumatic ball valves 13.4 and 13.5 are opened, the five-way electromagnetic reversing valve 26.6 is reversed, the test piece is inflated through the pneumatic ball valve 13.5, the air inlet speed is adjusted by adjusting the throttle valve 23, and oil in the test piece flows back into the oil tank through the pneumatic ball valve 13.4.
The readings of the temperature sensor 3.2 and the pressure sensor 20 are the temperature and the pressure output to the test piece, and the result is fed back to the control system for data processing and storage.
A liquid level display device liquid level meter 6 and a high-low liquid level automatic alarm device liquid level relay 4 are arranged on the oil tank so as to ensure that oil in the oil tank cannot overflow or cannot meet the requirement of the lowest liquid level; the air filter 7 is used for communicating the air in the oil tank with the outside and has a filtering function; the hose assembly 5 enables the pipeline to be flexible, and is convenient to disassemble and assemble; and the manual ball valve 8 is used for oil drainage of an oil tank and on-off of a heat conduction oil path.
Claims (2)
1. A high-pressure and automatically-controlled aviation fuel test bed oil supply system is characterized by comprising a hydraulic subsystem, a pneumatic subsystem and a control system; the hydraulic system is used for providing fuel medium with controllable pressure and temperature; the pneumatic system is used for providing air source power for the opening and closing action of the pneumatic ball valve and discharging oil in the test piece; the control system is used for controlling the hydraulic system and the pneumatic system and acquiring and processing data;
the hydraulic subsystem is an open system and mainly comprises an oil tank (1), a first filter (2.1), a second filter (2.2), a third filter (2.3), a first temperature sensor (3.1), a second temperature sensor (3.2), a liquid level relay (4), a liquid level meter (6), an air filter (7), a pump motor set (9), a first one-way valve (10.1), a second one-way valve (10.2), a plate heat exchanger (11), a heat conduction oil all-in-one machine (12), first pneumatic ball valves (13.1) -fifth pneumatic ball valves (13.5), a direct-acting overflow valve (14), a proportional overflow valve (15), a pressure gauge (16), an energy accumulator (17), a liquid level sensor (18), a throttle valve (19) and a pressure sensor (20);
the heat conducting oil integrated machine (12) is connected with the plate type heat exchanger (11) through a manual ball valve, one end of the plate type heat exchanger (11) is connected with the oil tank (1) through a second one-way valve (10.2) and a third filter (2.3), the other end of the plate type heat exchanger is connected with one end of a first pneumatic ball valve (13.1), a direct-acting overflow valve (14), a proportional overflow valve (15), a third pneumatic ball valve (13.3) and a throttle valve (19), the other end of the first pneumatic ball valve (13.1), the direct-acting overflow valve (14) and the proportional overflow valve (15) is connected with one end of the second filter (2.2), and the other end of the second filter (2.2) is connected with the oil tank (1) through the first one-way valve (10.1), a pump motor set (9) and the first filter (; the other end of the throttle valve (19) is connected with a test piece through a fourth pneumatic ball valve (13.4) and a fifth pneumatic ball valve (13.5), the other end of a third pneumatic ball valve (13.3) is respectively connected with a second pneumatic ball valve (13.2), an energy accumulator (17) and the test piece, and the other end of the second pneumatic ball valve (13.2) is connected with a second filter (2.2); the pressure gauge (16) is connected with the direct-acting overflow valve (14) and the proportional overflow valve (15); the liquid level sensor (18), the second temperature sensor (3.2) and the pressure sensor (20) are respectively connected with the test piece; the first temperature sensor (3.1), the liquid level relay (4), the liquid level meter (6) and the air filter (7) are connected with the oil tank (1);
the pneumatic system comprises an air source (21), a triple piece (22), a throttle valve (23), a filtering and reducing valve (24), a packaging valve plate (25) and a five-way electromagnetic directional valve (26);
the three-way valve (22) is used for adjusting the pressure, the oil mist quantity and the cleanliness of an air source (21), five-way electromagnetic directional valves are used for controlling the on-off of a pneumatic ball valve in a hydraulic system so as to control the on-off of a related oil way of the hydraulic system, the other five-way electromagnetic directional valve is used for discharging internal oil of a test piece and adjusting the pressure lower than 1MPa, a filtering and reducing valve (24) is used for adjusting the air outlet pressure and filtering pollutants, a throttle valve (23) is used for adjusting the air inlet flow rate, and a container valve plate (25) is used for installing the five-way electromagnetic directional valve;
when a test with a specified temperature is carried out, the heat conduction oil all-in-one machine (12) is started to adjust the temperature to the specified temperature, the five-way electromagnetic directional valve (26) is reversed, and the first pneumatic ball valve (13.1) is opened; when the temperature of the oil needs to be adjusted, the temperature adjusting system consisting of the first temperature sensor (3.1), the pump motor set (9), the plate heat exchanger (11) and the heat conducting oil all-in-one machine (12) is used for adjusting the temperature of the oil; pressure oil output by the pump motor set (9) passes through the first one-way valve (10.1), the second filter (2.2), the second pneumatic ball valve (13.2) and a pipeline, and oil meeting the temperature required by the test is output;
during a test, when a system needs to output a stable constant-pressure oil source, a pump motor set (9) is started, oil in an oil tank (1) is introduced into a high-pressure plunger pump through a first filter (2.1), the high-pressure plunger pump outputs high-pressure oil which passes through a first one-way valve (10.1) and a second filter (2.2), and then a proportional overflow valve (15) is connected in parallel, at the moment, a second pneumatic ball valve (13.2) and a fourth pneumatic ball valve (13.4) are opened to enable the oil to circularly flow in a no-load mode, then the fourth pneumatic ball valve (13.4) is closed, the proportional overflow valve (15) is adjusted to the required pressure, the second pneumatic ball valve (13.2) is closed to enter a pressure maintaining test process, and an energy accumulator (17) is used for absorbing pressure fluctuation and supplementing the oil leaked by a; when the required oil pressure is below 1.0MPa, the pressure of the proportional overflow valve (15) is adjusted to be higher than 1MPa, an air inlet of the fifth pneumatic ball valve (13.5) is connected with compressed gas with controllable pressure, the fifth pneumatic ball valve (13.5) is opened, and the pressure of the oil in the test piece is adjusted by adjusting the pressure of the filtering and reducing valve (24); the system pressure can realize stepless regulation of 0-15 MPa;
after the test is finished, the second pneumatic ball valve (13.2) is closed, the fourth pneumatic ball valve (13.4) and the fifth pneumatic ball valve (13.5) are opened, the five-way electromagnetic reversing valve (26) is reversed, the fifth pneumatic ball valve (13.5) is used for inflating the test piece, the throttle valve (23) is adjusted to adjust the air inlet speed, and oil in the test piece flows back to the oil tank through the fourth pneumatic ball valve (13.4);
the readings of the second temperature sensor (3.2) and the pressure sensor (20) are the temperature and the pressure output to the test piece, and the results are fed back to the control system for data processing and storage.
2. The high-voltage and automatically-controlled aviation fuel test bed oil supply system according to claim 1, wherein the control system mainly comprises a power distribution unit, a control unit and a data acquisition and processing unit, and is used for providing an oil source with constant pressure and temperature and acquiring the pressure, the temperature and the running state of a motor of an oil way in real time through controlling related components.
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| CN201910254652.0A CN110007702B (en) | 2019-03-31 | 2019-03-31 | High-pressure and automatic-control aviation fuel test bed oil supply system |
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| CN201910254652.0A CN110007702B (en) | 2019-03-31 | 2019-03-31 | High-pressure and automatic-control aviation fuel test bed oil supply system |
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| CN110673663B (en) * | 2019-09-05 | 2023-03-24 | 中国航发北京航科发动机控制***科技有限公司 | Hydraulic control system and method for testing fuel metering assembly of aircraft engine |
| CN114278634B (en) * | 2021-12-16 | 2024-05-17 | 南京晨光集团有限责任公司 | High-temperature fuel servo flow metering characteristic test system |
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| CN102169053A (en) * | 2010-12-24 | 2011-08-31 | 重庆青山工业有限责任公司 | Hydraulic control loop of high/low-temperature test bed for automatic transmission valve |
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| US20130133405A1 (en) * | 2011-11-25 | 2013-05-30 | Tareq Nasser Al-Buaijan | Shut-off valve testing system |
| CN205371117U (en) * | 2015-11-12 | 2016-07-06 | 北京科荣达新技术有限公司 | Fuel oil supply unit with two pressure boost oil tanks |
| CN207081552U (en) * | 2017-05-24 | 2018-03-09 | 天津成立航空技术有限公司 | A kind of fuel nozzle flow composite basis testing stand |
| CN108051192B (en) * | 2017-11-30 | 2019-03-05 | 南京晨光集团有限责任公司 | Self-changing gearbox valve body detection system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102169053A (en) * | 2010-12-24 | 2011-08-31 | 重庆青山工业有限责任公司 | Hydraulic control loop of high/low-temperature test bed for automatic transmission valve |
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