CN113022862A - Pressure refueling device for aircraft - Google Patents
Pressure refueling device for aircraft Download PDFInfo
- Publication number
- CN113022862A CN113022862A CN202110478838.1A CN202110478838A CN113022862A CN 113022862 A CN113022862 A CN 113022862A CN 202110478838 A CN202110478838 A CN 202110478838A CN 113022862 A CN113022862 A CN 113022862A
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- Prior art keywords
- level controller
- pressure
- emergency
- oil level
- fuel
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000001514 detection method Methods 0.000 claims abstract description 40
- 239000002828 fuel tank Substances 0.000 claims abstract description 19
- 239000000446 fuel Substances 0.000 claims description 24
- 238000005259 measurement Methods 0.000 claims 2
- 239000000945 filler Substances 0.000 claims 1
- 239000003921 oil Substances 0.000 description 90
- 239000000295 fuel oil Substances 0.000 description 7
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005574 cross-species transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009699 differential effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D37/00—Arrangements in connection with fuel supply for power plant
- B64D37/02—Tanks
- B64D37/14—Filling or emptying
- B64D37/16—Filling systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D37/00—Arrangements in connection with fuel supply for power plant
- B64D37/32—Safety measures not otherwise provided for, e.g. preventing explosive conditions
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The invention provides a pressure refueling device for an airplane, which comprises a pressure refueling control valve 1, an oil level controller 2, an emergency oil level controller 3 and a pre-detection switch 4, wherein: the pressure refueling control valve 1 is arranged on the side surface in the fuel tank, the pressure refueling control valve is connected with a refueling main pipe, an oil level controller is fixed at the top in the fuel tank, a pre-detection interface of the oil level controller 2 is connected with the refueling main pipe through a pre-detection pipeline, a pre-detection switch is arranged on the pre-detection pipeline, and a control interface of the oil level controller is connected with a first emergency control interface of the pressure refueling control valve 1 through the pre-detection pipeline; the emergency oil level controller 3 is fixed at the top in the fuel tank, a control interface of the emergency oil level controller 3 is connected with a second emergency control interface of the pressure refueling control valve, and cable interfaces of the oil level controller 2, the pre-detection switch 4 and the pressure refueling control valve are connected with the controller.
Description
Technical Field
The invention belongs to the technical field of aviation, and relates to a pressure refueling device for an airplane.
Background
The pressure refueling device of a certain platform airplane has an emergency full-oil control function, which is realized by controlling a pressure refueling control valve by using a mechanical float valve in an oil level controller, and once the mechanical float valve or the pressure refueling control valve has a fault, the emergency full-oil control fails to work, so that oil leakage or oil tank fault is caused.
Disclosure of Invention
The invention relates to a pressure refueling device for an airplane, wherein emergency full oil is provided with two sets of independent cutting devices, so that the problem that emergency full oil control is easy to lose effectiveness is solved, and the reliability of a system is improved.
The invention provides a pressure refueling device for an airplane, which comprises a pressure refueling control valve 1, an oil level controller 2, an emergency oil level controller 3 and a pre-detection switch 4, wherein:
the pressure refueling control valve 1 is arranged on the side surface in the fuel tank, the pressure refueling control valve is connected with a refueling main pipe, an oil level controller is fixed at the top in the fuel tank, a pre-detection interface of the oil level controller is connected with the refueling main pipe through a pre-detection pipeline, a pre-detection switch is arranged on the pre-detection pipeline, and a control interface of the oil level controller 2 is connected with a first emergency control interface 1-1 of the pressure refueling control valve 1 through the pre-detection pipeline; the emergency oil level controller 3 is fixed at the top in the fuel tank, a control interface 3-4 of the emergency oil level controller 3 is connected with a second pre-detection port 1-3 of the pressure refueling control valve, and the oil level controller 2, the pre-detection switch 4 and a cable interface 1-2 of the pressure refueling control valve are all connected with the controller.
Specifically, the emergency oil level controller 3 comprises a float valve 3-1, a mechanical float 3-2, a shell 3-3 and a control interface 3-4, wherein:
a mechanical floater 3-2 and a floater valve 3-1 are arranged in the shell 3-3, the mechanical floater 3-2 is connected with the floater valve 3-1, and the floater valve 3-1 is connected with a control interface 3-4.
Specifically, the height of the working oil level of the emergency oil level controller 3 is greater than that of the working oil level of the oil level controller 2.
Specifically, the control port 13 of the pressure refueling control valve is connected with the controller.
Specifically, the pressure refueling control valve is connected with the refueling main pipe through a flange plate at the end head of the pressure refueling control valve.
Specifically, the oil level controller is fixed on the top of the fuel tank through a screw hole formed in the upper end face of the oil level controller.
Specifically, the emergency oil level controller 3 is fixed to the top of the fuel tank through a screw hole formed in the upper end face of the emergency oil level controller.
Specifically, the device is also crosslinked with a fuel oil measuring system, receives the fuel oil amount of the fuel oil measuring system, and controls the opening and closing of the refueling valve according to the fuel oil amount.
In summary, the pressure refueling device adopts three mutually independent cutting devices, adopts three control modes, one is electric signal control, the other is mechanical oil level signal control, and the pressure refueling device has a pre-detection function, can check whether a system is intact before refueling, and improves the reliability of the pressure refueling device; the common mode condition is fully considered by the three valves of the refueling control valve, and the maintainability of the system is improved; the pressure refueling device adopts multi-signal output, can quickly judge the fault reason, has a valve state signal sending device, and can monitor the refueling working condition and fault judgment of the pressure refueling device on line.
Drawings
FIG. 1 is a coupling block diagram of a pressure refueling unit provided by the present invention;
FIG. 2 is a top view of a pressure fill control valve in the pressure filling apparatus provided by the present invention;
FIG. 3 is a cross-sectional view of an emergency level controller;
wherein: the system comprises a pressure refueling control valve 1, an oil level controller 2, an emergency oil level controller 3, a pre-detection switch 4, a first emergency control interface 1-1, a cable interface 1-2, a second emergency control interface 1-3, a floater valve 3-1, a mechanical floater 3-2, a shell 3-3 and a control interface 3-4.
Detailed Description
The invention belongs to the technical field of aircraft fuel systems, and relates to a pressure refueling device with a pre-detection function for an aircraft. The invention relates to a pressure refueling device for an airplane, which consists of a pressure refueling control valve, an oil level controller, an emergency oil level controller and a pre-detection switch, wherein the four products work together to realize a normal pressure refueling function, an emergency oil-full function and a pre-detection function. This pressure filling device adopts many signal output, can the quick judgement fault reason, and the preliminary examination function can detect in advance whether pressure filling device's emergency control function is normal, and two sets of cutting means of emergent full oil control are each other for backup to prevent that the pressure filling in-process from leading to the fuel to spill over because of normal control inefficacy, can effectively improve aircraft fuel oil system's reliability, reduce the maintenance work volume, shorten the maintenance cycle, the long service life of product, economic nature is good.
Example one
A pressure refueling device for an airplane mainly comprises a pressure refueling control valve 1, a fuel level controller 2, an emergency fuel level controller 3 and a pre-detection switch 4, wherein the pressure refueling control valve is connected with a refueling header pipe through a flange plate at the end, the fuel level controller is fixed at the top of a fuel tank and connected with the refueling header pipe through a pre-detection pipeline, the pre-detection switch is arranged on the pre-detection pipeline, and the fuel level controller is also connected with the pressure refueling control valve.
The pressure oiling control valve comprises an upper shell, a lower shell, an electromagnet, an upper plunger valve, a spring, a lower plunger valve and other components and standard components; the oil level controller consists of a mechanical floater, a floater valve, a mechanical floater outer cover, a lower shell, a diaphragm valve, a cover plate, a magnetic floater outer cover, a small floater, a Hall sensor, a pipe connecting nozzle, a support arm, a connecting plate and the like; the pre-detection switch is a direct-acting electromagnetic valve and mainly comprises a shell, a spring, a coil assembly, an armature, a coil shell, a position sensor, a printed board assembly and a cover body; the emergency oil level controller consists of a mechanical floater, a floater valve, a mechanical floater outer cover, a shell and a control interface. Four products pass through fuel pipe connection, and product interconnection, cooperation work can realize normally refuel function, emergent full oil function, refuel three kinds of functions of preliminary examination function:
and (4) normal control: when normal refueling is carried out, the pressure refueling device is crosslinked with the fuel management system, the fuel management system energizes the pressure refueling control valve, and the valve is opened under the action of pressurized oil pressure to realize refueling to the oil tank; when the oil quantity in the oil tank reaches the preselected oil filling quantity, the oil quantity measuring system sends a valve turn-off signal to control the pressure oil filling control valve to be powered off and closed, and oil filling is stopped.
Emergency control: when normal refueling is caused by a certain fault, the valve cannot be closed, the oil level in the oil tank continues to rise and reaches the working oil level of the oil level controller, and at the moment, the oil level controller and the pressure relief valve are closed, so that the pressure refueling control valve is controlled to be closed in emergency, and meanwhile, a working state signal is sent; when the oil level controller is in fault, the oil level continues to rise to reach the working oil level of the emergency oil level controller,
pre-detection control: before refueling, the system can be pre-checked to ensure that the pressure refueling unit is in a normal state. The normal oil level closing function can be checked in a mode of powering off the pressure oiling control valve, after the oiling pressure is applied, the system controls the pressure oiling control valve to power off the electromagnet, and if all oil tanks do not feed oil any more after the power off, the normal closing function is complete; the emergency oil level closing function can be realized through the pre-detection switch, after the oil filling pressure is added, the oil filling electromagnetic valve is controlled to be opened by the system, and if all the oil tanks do not feed oil any more, the emergency closing function is complete.
Example two
The invention is described in further detail below with reference to the following detailed description and accompanying drawings:
please refer to fig. 1, fig. 2, and fig. 3; FIG. 1 is a schematic view of a coupling frame of a pressure refueling unit; FIG. 2 is a top plan view of the pressure fill control valve; FIG. 3 is a cross-sectional view of an emergency level controller; in this embodiment, please refer to fig. 1, a novel pressure refueling device includes a pressure refueling control valve 1, an oil level controller 2, an emergency oil level controller 3, and a pre-detection switch 4. The pressure refueling control valve 1 is connected with a refueling main pipe through a flange plate at the end, the oil level controller 3 and the emergency oil level controller 3 are fixed at the top of the fuel tank through screw holes arranged on the upper end surface, and the pre-detection switch 4 is connected with a pre-detection pipeline through standard threads. The normal pressure oiling control function, the emergency full oil control function and the pre-detection function are realized through the combined work of four products:
1. normal pressure refueling control function
Referring to fig. 1, when the aircraft needs to be refueled on the ground or receives oil in the air, the electromagnet of the pressure refueling control valve is electrified, the armature is attracted under the electromagnetic force of the electromagnet, the normal control cavity is unblocked, and high-pressure fuel pushes the lower plunger valve and the upper plunger valve in sequence and then flows into the oil tank through the inner cavity. When the fuel in the fuel tank is added to a specified value, the controller of the pressure refueling system cuts off the power of the electromagnet of the pressure refueling control valve, after the electromagnet is cut off, the armature returns under the action of spring force, the normal control cavity is blocked and then builds pressure, the lower plunger valve is closed, and refueling to the fuel tank is stopped. And normal refueling control is realized.
2. Emergency full oil control function
Referring to fig. 1, fig. 2 and fig. 3, when the normal oil level control of the pressure refueling fails or the pressure refueling needs to be performed fully, the oil level in the fuel tank continues to rise, when the working oil level of the oil level controller is reached, the mechanical float of the oil level controller drives the float valve to block the emergency control pipeline, so that the pressure is built in the emergency control cavity of the pressure refueling control valve, the upper plunger valve is closed, the pressure refueling control valve is closed emergently, the refueling to the fuel tank is stopped, and meanwhile, the small float of the magnetic float of the oil level controller rises under the effect of the fuel buoyancy, and the hall sensor is triggered to send an emergency signal. When the oil level controller fails, the oil level continues to rise, and when the oil level reaches the working oil level of the emergency oil level controller, the mechanical floater 3-2 of the emergency oil level controller drives the floater valve 3-1 to block the emergency control pipeline, so that the emergency control cavity of the pressure refueling control valve builds pressure, the upper plunger valve is closed, the pressure refueling control valve is closed emergently, and refueling to the oil tank is stopped. The oil level controller and the emergency oil level controller are mutually backup, and when one of the oil level controller and the emergency oil level controller fails, the emergency control function cannot be influenced.
3. Preliminary examination function
Referring to fig. 1, in the normal pressure oiling process on the ground, the aircraft energizes the pre-detection switch, the armature overcomes the spring force of the spring to pull in under the action of the magnetic field, the pre-detection oil path is connected, and meanwhile, the position sensor in the product coil sends a connection position signal. The fuel gets into oil level controller preliminary examination interface through the preliminary examination switch and preliminary examination pipeline, the fuel is full of the diaphragm chamber, and flow from the pressure release mouth on the diaphragm valve, produce pressure differential, the diaphragm overcomes spring action power upward movement under the pressure differential effect, the hydraulic fluid leakage mouth is blocked up to the moulding valve, the fuel that gets into by oil level controller preliminary examination interface and control interface accumulates to mechanical float chamber and is full of mechanical float chamber, float mechanical float floats and drives the float valve and close, the emergency control chamber of pressure filling control valve is blockked up, make the pressure filling control valve go up the plunger chamber build the pressure, it closes to go up the plunger valve, thereby make pressure filling control valve emergency close, trigger valve position sensor simultaneously and send the valve shut signal. If the oil tank is not filled with oil any more, the emergency oil level control function of the pressure refueling system is normal, refueling can be continued, the pre-detection switch is powered off, the diaphragm cavity of the oil level controller is decompressed and returns under the action of spring force, fuel oil in the float cavity of the product flows out, the mechanical float loses buoyancy and falls down to drive the float valve to open, the pressure refueling control valve is decompressed in the emergency control cavity, the upper plunger valve is opened under the pressure action of the fuel oil, and the pressure refueling control valve recovers the refueling state and starts refueling.
Claims (8)
1. The utility model provides a pressure filling device for aircraft, its characterized in that, the device includes pressure filling control valve (1), oil level controller (2), emergent oil level controller (3) and preliminary examination switch (4), wherein:
the pressure refueling control valve (1) is arranged on the side surface in the fuel tank, the pressure refueling control valve is connected with a refueling main pipe, an oil level controller is fixed at the top in the fuel tank, a pre-detection interface of the oil level controller is connected with the refueling main pipe through a pre-detection pipeline, a pre-detection switch is arranged on the pre-detection pipeline, and a control interface of the oil level controller is connected with a first emergency control interface (1-1) of the pressure refueling control valve (1) through the pre-detection pipeline; the emergency oil level controller (3) is fixed at the top in the fuel tank, a control interface (3-4) of the emergency oil level controller (3) is connected with a second emergency control interface (1-3) of the pressure refueling control valve, and the oil level controller (2), the pre-detection switch (4) and a cable interface (1-2) of the pressure refueling control valve are all connected with the controller.
2. Device according to claim 1, characterized in that the emergency level controller (3) comprises a mechanical float (3-2), a float valve (3-1), a housing (3-3) and a control interface (3-4), wherein:
a mechanical floater (3-2) and a floater valve (3-1) are arranged in the shell (3-3), the mechanical floater (3-2) is connected with the floater valve (3-1), and the floater valve (3-1) is connected with the control interface (3-4).
3. The device according to claim 1, characterized in that the emergency level controller (3) has a working level greater than the working level of the level controller (2).
4. Device according to claim 1, characterized in that the cable port (1-2) of the pressure refuelling control flap is connected to a controller.
5. Device according to claim 1, characterized in that said pressure refuelling control flap (1) is connected to the refuelling manifold by means of a flange at its own end.
6. The apparatus of claim 1, wherein the fuel level controller is secured to the top of the fuel tank by screw holes provided in the upper end surface of the fuel level controller.
7. The device of claim 1, wherein the emergency fuel level controller is secured to the top of the fuel tank by screw holes provided in the upper end surface of the emergency fuel level controller.
8. The device of claim 1, further coupled to the fuel measurement system, the device receiving the amount of fuel from the fuel measurement system, the device being operable to control the opening and closing of the fuel filler door based on the amount of fuel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110478838.1A CN113022862A (en) | 2021-04-29 | 2021-04-29 | Pressure refueling device for aircraft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110478838.1A CN113022862A (en) | 2021-04-29 | 2021-04-29 | Pressure refueling device for aircraft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113022862A true CN113022862A (en) | 2021-06-25 |
Family
ID=76455212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110478838.1A Pending CN113022862A (en) | 2021-04-29 | 2021-04-29 | Pressure refueling device for aircraft |
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| Country | Link |
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| CN (1) | CN113022862A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5794812A (en) * | 1980-12-05 | 1982-06-12 | Fuji Electric Co Ltd | Oil level control method of hydraulic tank for emergent use |
| JP2007131337A (en) * | 2005-11-11 | 2007-05-31 | Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd | Fueling system |
| CN203112487U (en) * | 2012-12-27 | 2013-08-07 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Novel oil level control previewing device |
| CN106241719A (en) * | 2016-09-23 | 2016-12-21 | 江西洪都航空工业集团有限责任公司 | A kind of vapour-pressure type fuel tank refueling control system |
| CN106774476A (en) * | 2017-03-30 | 2017-05-31 | 中国航空工业集团公司西安飞机设计研究所 | A kind of fuel tanker pasta control system |
| CN110239729A (en) * | 2019-05-29 | 2019-09-17 | 陕西飞机工业（集团）有限公司 | A kind of pressure filling device with preview function |
| CN211475043U (en) * | 2019-08-13 | 2020-09-11 | 宜宾三江机械有限责任公司 | Dual-redundancy oil level signal output device |
-
2021
- 2021-04-29 CN CN202110478838.1A patent/CN113022862A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5794812A (en) * | 1980-12-05 | 1982-06-12 | Fuji Electric Co Ltd | Oil level control method of hydraulic tank for emergent use |
| JP2007131337A (en) * | 2005-11-11 | 2007-05-31 | Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd | Fueling system |
| CN203112487U (en) * | 2012-12-27 | 2013-08-07 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Novel oil level control previewing device |
| CN106241719A (en) * | 2016-09-23 | 2016-12-21 | 江西洪都航空工业集团有限责任公司 | A kind of vapour-pressure type fuel tank refueling control system |
| CN106774476A (en) * | 2017-03-30 | 2017-05-31 | 中国航空工业集团公司西安飞机设计研究所 | A kind of fuel tanker pasta control system |
| CN110239729A (en) * | 2019-05-29 | 2019-09-17 | 陕西飞机工业（集团）有限公司 | A kind of pressure filling device with preview function |
| CN211475043U (en) * | 2019-08-13 | 2020-09-11 | 宜宾三江机械有限责任公司 | Dual-redundancy oil level signal output device |
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| PB01 | Publication | ||
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Application publication date: 20210625 |
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