JPH0351635B2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to fuel supply equipment for supplying fuel oil to aircraft, etc., and in particular to a fuel supply system that can supply fuel oil more safely with a relatively small number of workers and by shortening refueling time. Regarding fuel supply equipment that can be used.

<Prior Art> Conventionally, aircraft at airports, for example, have stopped at so-called aprons to receive various services, such as refueling and loading food. When refueling the above fuel, a self-propelled fuel supply vehicle called a servicer is generally parked under the wing of the aircraft, and the base of the servicer's fuel oil receiving hose is connected to an underground fuel supply port provided in the apron. At the same time, fuel is supplied by fitting the nozzle of the servicer's fuel oil supply hose into a fuel filler port provided at the bottom of the wing of the aircraft. Furthermore, at some airports that have underground fuel storage tanks, such as small airports, fuel is refueled by a refueling vehicle called a refueler, which has a fuel tank mounted on the servicer.

The above-mentioned servicers and refurbishers require a relatively long refueling time (about 60 minutes on average each time) and a large number of workers (5 to 6 people). It is difficult to say that the work is carried out efficiently, with workers reporting the amount of refueling indicated by the system to a management office located relatively far away. In addition, during rainy days, it is necessary to take in rainwater from around the underground fuel supply port each time refueling is carried out using a vacuum car, for example, to prevent rainwater from mixing with the fuel oil from the supply port, and the maintenance and management costs are also high. Relatively large. Furthermore, since the fuel supply device is mounted on a self-propelled vehicle such as a servicer, each device is relatively densely packed, making it difficult to maintain and inspect the device. Furthermore, in the event that oil leaks due to carelessness during the refueling operation, the vicinity of the refueling work area will become an explosive atmosphere, and if an internal combustion engine is used in the servicer or the like, there is a risk of it becoming a source of ignition.

<Problems to be Solved by the Invention> In view of the problems of the prior art, the main purpose of the present invention is to provide a method for refueling aircraft, etc., with relatively high work efficiency and easy maintenance and inspection. It is an object of the present invention to provide a fuel supply facility that can reduce maintenance costs and make the facility explosion-proof.

<Means for Solving the Problems> According to the present invention, such an object includes: a pressure control valve that controls the pressure of the pumped fuel oil to a predetermined pressure;
a fuel supply device including a cleaning device that cleans the fuel oil; an integrated flow meter that cumulatively measures the flow rate of the fuel oil; a hose for introducing the fuel oil supplied from the fuel supply device; A fuel supply device comprising a hose reel capable of winding up the hose, and a fuel filler port access device that supports the free end of the hose and is movable laterally and vertically. This is achieved by providing facilities.

<Function> As described above, it has a fuel supply device that controls the fuel oil to a predetermined pressure and integrates the flow rate and supplies it, and a means for supporting the free end of the hose through which the fuel oil passes, and also has a Alternatively, fuel oil can be supplied with improved work efficiency, ease of maintenance and inspection, and safety by using a fuel supply facility equipped with a lowerable operating table.

<Examples> Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a layout diagram showing the entire fuel supply facility for supplying fuel oil to aircraft to which the present invention is applied. A first pipe 1 that introduces fuel oil pressure-fed from a fuel tank and pump (not shown) is connected to a fuel supply system 2 installed underground near the parking position of the aircraft, and the fuel supplied from the fuel supply system 2 Second pipes 3 for introducing oil are each connected to a hose reel device 5 that forms part of a fuel filler access device installed underground near the ends of both wings 4a of an aircraft 4 parked at a predetermined location. An underground traveling pit 6 is provided to connect both hose reel devices 5 to each other, and the ground surface of the traveling pit 6 is covered with a pit cover 7. Further, in order to drain rainwater and the like flowing down from the ground into the fuel supply device 2 and the fuel filler access device, drain pipes 8 connected thereto are piped toward drainage equipment (not shown).

The fuel supply device 2 is installed in an underground pit 11, as clearly shown in FIG. Then, the gate valve 14 and the pressure control valve 15 are assembled. The piping 12 is connected to 2 downstream of the pressure control valve 15.
branched into the system, and the intake port 16a of the purifier 16
are connected to each. Piping 1 that has been made into one again after exiting from the outlet 16b of the cleaning device 16
2 has a check valve 17 and an integrated flow meter 18 assembled therein. The piping 12 is branched again into two systems downstream of the integrated flow meter 18, and each is connected to a bench lily 19.
and an accumulator 20 are attached. A second pipe 3 leading to the hose reel device 5 is connected to the most downstream end of the pipe 12. Further, a pipe 21 is connected to the lower part of both cleaning devices 16, and a slop tank 22 is attached to the other end of the pipe 21.
The water-containing oil separated in the cleaning device 16 is stored therein. In addition, a side gutter 25 and a water collection tank 26 are provided on one wall of the floor of the pit 11 and are connected to the side gutter 25. Furthermore, a water collection tank 26 and a drain pipe 8 buried outside the pit 11 are installed. Since it is connected to the pit 11, rainwater or the like that enters the pit 11 through an inspection port (not shown) is appropriately drained.

Further, detection signals from the integrated flow meter 18 and the bench lily 19 are sent to a management office (not shown) via the field panel 27, so that the management office can also monitor the flow rate.

Next, as clearly shown in FIG. 3, the hose reel 32 of the hose reel device 5 is inserted into the underground pit 3.
1, and a pipe 34 is connected to the second pipe 3 successively. Note that an accumulator 33 is attached to the intermediate portion of the pipe 34.
In addition, a small pulley 35 is attached to the hose reel 32 and the shaft end.
is attached, and a large pulley 36 is installed at a predetermined position on the floor of the pit 31 of the small pulley 35.
A belt 37 is suspended between. The large pulley 36 is similarly driven by a belt or chain drive by a drive motor 38 provided at a predetermined position on the floor of the pit 31.

The side wall of the pit 31 of the hose reel device 5 configured as described above has an opening 3 on the side from which the hose 40 wound around the hose reel 32 is fed out.
1a is provided. As described above, the traveling pit 6 having substantially the same cross section as the opening 31a is provided toward the pit 31 of the other hose reel device 5. Horizontal running rails 39 made of H-shaped steel or the like are provided on both side walls 6a of the running pit 6.
Two of them are attached at predetermined positions, one above the other.

A bogie 41 that can run on wheels 41a is attached to the horizontal traveling rail 39, but the bogie 41
The wheel 41a is driven by the mounted geared motor 42.
The vehicle travels by driving the .

The cart 41 also includes a so-called table lift 44 that is hydraulically driven by a hydraulic device 43 and can be raised and lowered.
The base of the table lift 44 is fixedly installed, and the operation table 45 is fixedly installed at the upper end of the table lift 44. The operation table 45 is provided with a work table 47 made of a draft steel plate or the like on which a worker 46 can work.
A safety fence 48 is provided on the outer periphery of. The safety fence 48 includes a plurality of poles 4 erected on the workbench 47.
8a and a bar 48b connecting the upper end of each pole 48a. Note that since both ends 47a of the workbench 47 have a structure that can be folded in the direction shown by the arrow A in the figure, when stored in the travel pit 6, the occupied area is reduced to about half, making it easier to travel. The pit 6 is not made unnecessarily large. Furthermore, since the safety shafts 48 assembled to both ends 47a are of a plug-in type, for example, when folding both ends 47a of the workbench 47, the safety fences 48 can be removed to ensure that the workbench is sufficiently stored in the travel pit 6. The Rukoto.

A pulley 49 is provided at the lower part of the cart 41, and the hose 40 is fed out laterally from the hose reel 32.
The hose 40 is bent upward at a substantially right angle by
It is bifurcated into two near its tip, and a refueling nozzle 51 fixed to each tip is supported by a nozzle holder 52 assembled to the operating table 45.

Further, on the traveling pit 6, a pit cover 7 that can sufficiently withstand the weight of the aircraft is divided into parts having a predetermined area, each of which is supported so as to be slidable in the horizontal direction by rollers (not shown).
3, it is slid to the lower part of the fixed pit cover 54 and stored. In addition, the operation console 45
An operation panel 55 is attached to which controls the raising and lowering of the operation console 45 and the running of the trolley 41. At a predetermined position above the ground of the pit 31 of the hose reel device 5, an operation box 56 for controlling the traveling of the trolley 41 is fixedly installed on the back side of the lid of the inspection port 58.

In the refueling port approach device configured as described above, when the aircraft 4 stops at a predetermined position, first operate the operation box 56 to move the operation platform 45 stored in the traveling pit 6 to the trolley 41. The vehicle is caused to travel along with the vehicle and stopped at a position opposite to a refueling port 57 provided on the wing 4a of the aircraft 4. Note that the hose 40 is unwound from the hose reel 32 as the trolley 41 moves.
Since the hose 40 is driven in the direction in which the hose 40 is fed out, the trolley 41 can run smoothly.

Then, the pit cover 7 on the upper part of the operation table 45
The stopper 53 is released and the pit cover 7 is slid and stored in the lower part of the fixed pit cover 54 to open the upper part of the operating table 45. Next, the operation panel 55 of the operation table 45 is operated to bring the operation table 45 out to the ground, and both ends 47a of the work table 47 are expanded outward and brought down, and the safety fence 48 is assembled. Then, the operation panel 55 is operated to raise the blade 4a to the vicinity of the fuel filler port 57. It should be noted that the hose 40 is unwound from the hose reel 32 as the operation console 45 rises, but since the hose reel 32 is driven by the drive motor 38 as the operation console 45 rises as described above, the operation The platform 45 can rise smoothly.

Then, both fuel supply nozzles 51 are connected to the fuel supply ports 57 to supply fuel, but the fuel oil is
In the fuel supply device 2, oil supply is started and stopped by opening and closing the gate valve 14, the pressure is reduced to a predetermined pressure by the pressure control valve 15, impurities, water, etc. are removed by the purifier 16, and the integrated flow meter After the supply amount is cumulatively measured by 18, it is branched, passes through a bench lily 19 provided for each wing 4a in order to supply it evenly to both wings 4a, and is sent to both oil filler port access devices through a second pipe 3, and then connected to a hose 40. Street, hose end control valve (excess pressure limiting valve) 5
It will be supplied to the aircraft 4 via the refueling nozzle 9 and the refueling nozzle 51. In addition, since the piping system is provided with accumulators 13, 20, and 33 at predetermined positions, it is necessary to prevent damage to each device due to so-called water hammer that may occur when refueling is finished or when refueling is stopped in an emergency. is possible.

After the refueling is completed, the operation console 45 is stored in the traveling pit 6 by the reverse operation procedure as described above, the pit cover 7 is returned to its original position, and the aircraft is ready to supply fuel to the next aircraft. Furthermore, when the operating table 45 is lowered and the trolley 41 is returned to its original position, the hose reel 32 is driven by the drive motor 38 in the direction in which the hose 40 is wound in accordance with each movement, which causes the inconvenience that the hose 40 becomes slack. Never.

Note that safety against an explosive atmosphere is ensured by using explosion-proof construction for the electrical equipment used in the fuel supply device 2 and the fuel filler access device.

<Effects of the Invention> As described above, according to the present invention, by providing the refueling port access device near the stop position, a large amount of fuel can be continuously and stably supplied, and refueling time can be shortened. can be achieved. At the same time, the amount of refueling can be monitored from a remote location, and the work can be done with fewer workers, resulting in labor savings. In addition, the refueling equipment can be stored underground, so there are no obstacles protruding above the ground when not in use, making it possible to utilize above-ground space, and there are no space restrictions around the equipment, making maintenance and inspection easier. can be implemented.

[Brief explanation of drawings]

FIG. 1 is a layout diagram of a fuel supply facility according to the present invention. FIG. 2 is a schematic piping diagram showing a fuel supply device to which the present invention is applied. FIG. 3 is a perspective view showing a fuel filler port access device to which the present invention is applied. 1... First piping, 2... Fuel supply device, 3...
...Second pipe, 4...Aircraft, 4a...Wing, 5...
...Hose reel device, 6...Travel pit, 6a...
...Side wall, 7...Pit cover, 8...Drain pipe, 1
1... Pit, 12... Piping, 13... Accumulator, 14... Gate valve, 15... Pressure control valve,
16...Cleaning device, 16a...Intake, 16b
... Takeout port, 17 ... Check valve, 18 ... Integrating flow meter, 19 ... Bench lily, 20 ... Accumulator, 21 ... Piping, 22 ... Slop tank,
25...Gutter, 26...Water collection tank, 27...Site board, 31...Pit, 31a...Opening, 32...
...Hose reel, 33...Accumulator, 34
... Piping, 35 ... Small pulley, 36 ... Large pulley, 37 ... Belt or chain, 38 ... Drive motor, 39 ... Horizontal traveling rail, 40 ... Hose, 41 ... Trolley, 41a ... Wheel , 42...
Geared motor, 43...Hydraulic system, 44...Table lift, 45...Operation console, 46...Worker,
47... Workbench, 47a... End, 48... Safety fence, 48a... Pole, 48b... Bar, 49...
... Pulley, 51 ... Oil supply nozzle, 52 ... Nozzle holder, 53 ... Stopper, 54 ... Fixed pit cover, 55 ... Operation panel, 56 ... Operation box,
57...Refueling port, 58...Inspection port, 59...Hose end control valve (excess pressure limiting valve).

Claims (1)

[Scope of Claims] 1. A pressure control valve that controls pressure-fed fuel oil to a predetermined pressure, a cleaning device that cleans the fuel oil,
A fuel supply device comprising an integral flow meter that integrally measures the flow rate of the fuel oil; a hose for introducing the fuel oil supplied from the fuel supply device; and a hose reel capable of winding up the hose. A fuel supply facility comprising: a fuel filler port access device that supports the free end of the hose and includes an operating table that can be moved laterally and vertically.