CN215861046U - Single-system oil pump truck system suitable for airplane - Google Patents
Single-system oil pump truck system suitable for airplane Download PDFInfo
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- CN215861046U CN215861046U CN202120381411.5U CN202120381411U CN215861046U CN 215861046 U CN215861046 U CN 215861046U CN 202120381411 U CN202120381411 U CN 202120381411U CN 215861046 U CN215861046 U CN 215861046U
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Abstract
The utility model provides a single-system oil pump truck system suitable for an airplane, wherein an oil tank is connected with a main oil pipe through an oil absorption filter, a first electric three-way ball valve is installed on the main oil pipe and is connected with a motor pump set through a pump set oil absorption hose, an oil outlet of the motor pump set is connected with a one-way valve through a pump set oil outlet hose, the one-way valve is simultaneously connected with a safety valve and a flow meter after passing through a first-stage filter and a second-stage filter, the flow meter is simultaneously connected with a two-position two-way electromagnetic valve and an oil supply hose, an oil supply connector is installed on the oil supply hose, an overflow port of the safety valve is connected with an oil return pipe, the oil return pipe is provided with a sampling valve and a granularity detector, and the oil return pipe is connected with the oil return connector through an oil return hose, so that automatic control, digital display and intelligent detection of the oil pump truck system are realized.
Description
Technical Field
The utility model relates to the field of aircraft ground maintenance and hydraulic electric systems, in particular to a single-system oil pump truck system suitable for an aircraft.
Background
Besides meeting the pressure and flow required by the system during the design of the oil pump vehicle system, two key technical attack points are provided: the system solves the problem of high-pressure overflow heating of the hydraulic system and solves the problems of pulsation and transient response when the system supplies pressure.
The early oil pump truck adopts the power supply mode drive pump package of converter + ordinary motor to realize the regulation of system flow, adjusts system pressure through the guide's formula air-vent valve, and this kind of system design can satisfy the operation requirement, but system high pressure overflow leads to system fluid high temperature easily, influences fluid physicochemical property and has potential harm to aircraft hydraulic system's sealing member. The conventional physical cooling method with the additional radiator cannot fundamentally solve the problem of system heating.
At present, most of oil pump vehicles are mainly designed into a frequency converter, a power source mode of a variable frequency motor and a pump set adopt a variable pump, overflow heating of the system is fundamentally reduced by comparing with an early product, the problem of heating still exists, and the system has large pressure pulsation and delayed response speed under a high-pressure operation working condition.
In addition, the physical switch and the button which need complicated operation sequence are mostly adopted in the early oil pump vehicle, and system pressure and flow are displayed through a mechanical dial plate, so that the problems of scattered system data and difficulty in integration exist.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a single-system oil pump truck system suitable for an airplane, which adopts the design of a PLC (programmable logic controller), a servo control system and a touch screen control, and realizes the automatic control, digital display and intelligent detection of the oil pump truck system through a PLC control technology and various sensors, flowmeters and online detection devices configured in the system.
In order to achieve the technical features, the utility model is realized as follows: the utility model provides a single system oil pump truck system suitable for aircraft, it includes the oil tank, the oil tank is strained through the oil absorption and is linked to each other with main oil pipe, installs first electronic tee bend ball valve on the main oil pipe, and first electronic tee bend ball valve passes through pump package oil absorption hose and links to each other with motor pump group, and motor pump group's oil-out passes through pump package oil outlet hose and links to each other with the check valve, and the check valve passes through behind one-level filter and the second grade filter simultaneously and links to each other with relief valve and flowmeter, and the flowmeter links to each other with two-position two-way solenoid valve and oil supply hose simultaneously, installs fuel feeding joint on the fuel feeding hose, the overflow mouth of relief valve links to each other with back oil pipe, back oil pipe installs sample valve and granularity detector, it links to each other with back oil pipe through back oil hose.
The bottom of oil tank is installed and is used for the oil drain ball valve of oil extraction, the top fixed mounting of oil tank has the air filter, installs the liquid level relay who is used for controlling the liquid level on the lateral wall of oil tank.
An oil return pipe is connected to the oil tank, and an oil return filter is mounted on the oil return pipe.
The motor pump set adopts a constant-pressure variable plunger pump as a power element, so that the constant-pressure output and the flow variable output of the system are realized, and the system heat productivity of the equipment under the high-pressure small-flow operation condition is reduced.
A temperature sensor is arranged between the secondary filter and the safety valve; and the safety valve is communicated with a first pressure sensor.
And an oil return installation valve is installed on a pipeline in front of the oil return filter, and an air cooling radiator is installed on the pipeline in front of the oil return installation valve.
And the oil supply hose is provided with a pressure gauge and a second pressure sensor.
And the first electric three-way ball valve is connected with the oil return pipe through a second electric three-way ball valve.
The utility model has the following beneficial effects:
1. the system adopts the design of PLC controller, servo control system and touch screen control, and realizes the automatic control, digital display and intelligent detection of the oil pump vehicle system through the PLC control technology and various sensors, flow meters and online detection devices configured in the system.
2. The system has the main functions of providing a stable hydraulic oil source for an airplane hydraulic system, supplying pressure to an onboard operating system, and carrying out functional inspection and test on onboard related mechanisms.
3. The oil pump vehicle system has a self-circulation oil purifying function, is provided with an oil online pollution degree detection device, can detect the oil quality grade of the system in real time on line and can print an oil detection report. The oil pump truck system can also clean the pipeline and the oil tank of the aircraft hydraulic system, and simultaneously has the function of filling hydraulic oil into the aircraft hydraulic oil tank.
4. The system adopts the constant-pressure variable plunger pump as a system power output device, selects the servo motor as a power source, and compared with a variable-frequency motor, the servo motor has the advantages of high response speed, high transmission efficiency and high holding torque. The servo motor drives the constant-pressure variable plunger pump, so that the system has stable pressure supply, quick instantaneous response and continuously adjustable flow.
5. The principle of system variable output is that the rotating speed of a motor is controlled through a servo controller, an electric proportional solenoid valve controls the inclination angle of a swash plate of a variable pump, and continuous variable adjustment of system flow is achieved through two linear proportional controls. The system pressure regulating principle is that the current signal of an electric proportional solenoid valve on a pump set is accurately regulated through PID, so that the system pressure is stably output, and the pulsation is small.
6. The pump set is provided with a load sensor, and when the system operates under the working condition of high pressure and small flow, the pump set automatically stabilizes the pressure and adjusts the flow output of the system, thereby fundamentally reducing the heat generated by high-pressure overflow of the system.
Drawings
The utility model is further illustrated by the following figures and examples.
FIG. 1 is a schematic diagram of the system of the present invention.
In the figure: the device comprises an air filter 1, a liquid level relay 2, an oil return filter 3, an oil return installation valve 4, an air cooling radiator 5, a sampling valve 6, a granularity detector 7, a first pressure sensor 8, an oil return hose 9, an oil return joint 10, a temperature sensor 11, a pressure gauge 12, a second pressure sensor 13, an oil supply joint 14, an oil supply hose 15, a two-position two-way electromagnetic valve 16, a flowmeter 17, a safety valve 18, a second-stage filter 19, a first-stage filter 20, a one-way valve 21, a pump set oil outlet hose 22, a motor pump set 23, a pump set oil suction hose 24, a second electric three-way ball valve 25, a first electric three-way ball valve 26, an oil suction filter 27, an oil discharge ball valve 28 and an oil tank 29.
Detailed Description
Embodiments of the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1, a single-system oil pump vehicle system suitable for an airplane comprises an oil tank 29, the oil tank 29 is connected with a main oil pipe through an oil suction filter 27, a first electric three-way ball valve 26 is installed on the main oil pipe, the first electric three-way ball valve 26 is connected with a motor pump unit 23 through a pump unit oil suction hose 24, an oil outlet of the motor pump unit 23 is connected with a one-way valve 21 through a pump unit oil outlet hose 22, the one-way valve 21 is simultaneously connected with a safety valve 18 and a flow meter 17 after passing through a primary filter 20 and a secondary filter 19, the flow meter 17 is simultaneously connected with a two-position two-way electromagnetic valve 16 and an oil supply hose 15, the oil supply hose 15 is provided with an oil supply connector 14, an overflow port of the safety valve 18 is connected with an oil return pipe, the oil return pipe is provided with a sampling valve 6 and a granularity detector 7, and the oil return pipe is connected with the oil return connector 10 through an oil return hose 9.
Further, an oil drain ball valve 28 for draining oil is installed at the bottom of the oil tank 29, an air filter 1 is fixedly installed at the top of the oil tank 29, and a liquid level relay 2 for controlling liquid level is installed on the side wall of the oil tank 29.
Further, an oil return pipe is connected to the oil tank 29, and the oil return pipe is provided with an oil return filter 3.
Further, the motor-pump unit 23 selects a constant-pressure variable plunger pump as a power element, so that constant-pressure output and system flow variable output of the system are realized, and the system heat productivity of the equipment under a high-pressure low-flow operation condition is reduced.
Further, a temperature sensor 11 is arranged between the secondary filter 19 and the safety valve 18; the safety valve 18 is communicated with a first pressure sensor 8.
Furthermore, an oil return installation valve 4 is installed on a pipeline in front of the oil return filter 3, and an air-cooled radiator 5 is installed on a pipeline in front of the oil return installation valve 4.
Further, a pressure gauge 12 and a second pressure sensor 13 are mounted on the oil supply hose 15.
Further, the first electric three-way ball valve 26 is connected with an oil return pipe through a second electric three-way ball valve 25.
The working process and principle of the utility model are as follows:
the working modes of the oil pump vehicle system are as follows: the system comprises five working modes of self-circulation cleaning, on-board circulation cleaning, equipment oil tank pressure supply, aircraft oil tank pressure supply and aircraft oiling, wherein the operating oil way of each working mode is switched by a duplex second electric three-way ball valve 25 and a first electric three-way ball valve 26, and the system operating parameters are initially set and adjusted by a controller according to the corresponding working modes.
The oil circuit is operated in each mode of the system as follows:
self-circulation cleaning of oil way:
oil liquid of an equipment oil tank → an oil suction filter 27 → an electric three-way ball valve 26 → a motor pump unit 23 → a one-way valve 21 → a primary filter 20 → a secondary filter 19 → a flow meter 17 → a two-position two-way solenoid valve 16 → a granularity detector 7 → an air cooling radiator 5 → a second electric three-way ball valve 25 → an oil return filter 3 → an equipment oil tank;
on-board circulation cleaning and airplane fuel tank pressure supply modes:
the oil paths of the two modes are completely consistent, and the system parameters are set differently.
The oil tank on the machine → the oil return joint 10 → the granularity detector 7 → the air cooling radiator 5 → the second electric three-way ball valve 25 → the first electric three-way ball valve 26 → the motor pump group 23 → the one-way valve 21 → the primary filter 20 → the secondary filter 19 → the flow meter 17 → the oil supply joint 14 → the system on the machine;
pressure supply of an equipment oil tank:
oil liquid of an equipment oil tank → an oil suction filter 27 → a first electric three-way ball valve 26 → a motor pump group 23 → a one-way valve 21 → a primary filter 20 → a secondary filter 19 → a flow meter 17 → an oil supply joint 14 → an on-board system → an oil return joint 10 → a granularity detector 7 → an air cooling radiator 5 → an electric three-way ball valve 25 → an oil return filter 3 → an equipment oil tank;
aircraft refueling:
oil in an equipment oil tank → an oil suction filter 27 → a first electric three-way ball valve 26 → a motor pump group 23 → a one-way valve 21 → a primary filter 20 → a secondary filter 19 → a flow meter 17 → an oil supply joint 14 → an aircraft oil tank;
electrical principle:
the oil pump truck control system adopts PLC as a main controller, the operation mode adopts a touch screen and button control mode, after a corresponding working mode is selected on the touch screen, the PLC carries out equipment self-checking through position feedback signals of various sensors and electric valves arranged on the system, after the self-checking state is qualified, corresponding valve position switching is controlled according to operation working conditions, and after the valve position is in place, each actuating mechanism is automatically controlled and adjusted according to set parameters, so that the system output meets the set requirements.
The system detects and controls the working pressure, the oil temperature and the system flow in real time during working, and synchronously displays on the touch control screen, thereby having overpressure, overtemperature and system maximum flow protection.
Claims (8)
1. A single system fuel pump car system suitable for an aircraft, characterized in that: the oil tank (29) is connected with a main oil pipe through an oil absorption filter (27), a first electric three-way ball valve (26) is installed on the main oil pipe, the first electric three-way ball valve (26) is connected with a motor pump set (23) through a pump set oil absorption hose (24), an oil outlet of the motor pump set (23) is connected with a one-way valve (21) through a pump set oil outlet hose (22), the one-way valve (21) is simultaneously connected with a safety valve (18) and a flow meter (17) after passing through a primary filter (20) and a secondary filter (19), the flow meter (17) is simultaneously connected with a two-position two-way electromagnetic valve (16) and an oil supply hose (15), and an oil supply joint (14) is installed on the oil supply hose (15), an overflow port of the safety valve (18) is connected with an oil return pipe, the oil return pipe is provided with a sampling valve (6) and a granularity detector (7), the oil return pipe is connected with an oil return joint (10) through an oil return hose (9).
2. The single system pumper system adapted for use in an aircraft of claim 1, wherein: the bottom of oil tank (29) is installed and is used for the oil drain ball valve (28) of oil extraction, the top fixed mounting of oil tank (29) has air cleaner (1), installs liquid level relay (2) that are used for controlling the liquid level on the lateral wall of oil tank (29).
3. The single system pumper system adapted for use in an aircraft of claim 1, wherein: an oil return pipe is connected to the oil tank (29), and an oil return filter (3) is mounted on the oil return pipe.
4. The single system pumper system adapted for use in an aircraft of claim 1, wherein: the motor pump set (23) adopts a constant-pressure variable plunger pump as a power element, so that the constant-pressure output and the flow variable output of the system are realized, and the system heat productivity of the equipment under the high-pressure small-flow operation working condition is reduced.
5. The single system pumper system adapted for use in an aircraft of claim 1, wherein: a temperature sensor (11) is arranged between the secondary filter (19) and the safety valve (18); the safety valve (18) is communicated with a first pressure sensor (8).
6. A single system pumper system adapted for use in an aircraft as claimed in claim 3, wherein: an oil return installation valve (4) is installed on a pipeline in front of the oil return filter (3), and an air cooling radiator (5) is installed on the pipeline in front of the oil return installation valve (4).
7. The single system pumper system adapted for use in an aircraft of claim 1, wherein: and the oil supply hose (15) is provided with a pressure gauge (12) and a second pressure sensor (13).
8. The single system pumper system adapted for use in an aircraft of claim 1, wherein: and the first electric three-way ball valve (26) is connected with the oil return pipe through a second electric three-way ball valve (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120381411.5U CN215861046U (en) | 2021-02-20 | 2021-02-20 | Single-system oil pump truck system suitable for airplane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120381411.5U CN215861046U (en) | 2021-02-20 | 2021-02-20 | Single-system oil pump truck system suitable for airplane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215861046U true CN215861046U (en) | 2022-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120381411.5U Active CN215861046U (en) | 2021-02-20 | 2021-02-20 | Single-system oil pump truck system suitable for airplane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215861046U (en) |
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2021
- 2021-02-20 CN CN202120381411.5U patent/CN215861046U/en active Active
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