JP2000185696A - Ice and snow removing system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent deposition of ice and snow during waiting time for take-off, and improve constant time performance of operation of an aircraft by removing ice and snow immediately before take-off for efficiently removing ice and snow deposited on the aircraft. SOLUTION: An ice and snow removing system 11 is provided at a position in a taxiway 3 close to a runway 1. The ice and snow removing system 11 is provided with a gate 12 installed across the taxiway 3 and a recovering means 14 installed on a ground surface. Nozzles and sensors are provided on the gate 12. A control means sprays warm water, nonfreeze solution, and compression air from the respective nozzles based on data from the sensors to remove ice and snow deposited on an aircraft 5. The recovering means 14 is provided with a penetration pavement part and a heater to melt removed ice and snow to be recovered and reused.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ice and snow removing system for removing ice and snow from an aircraft at an airfield.

[0002]

2. Description of the Related Art Conventionally, the work of removing ice and snow attached to an aircraft at an airfield has been carried out by removing antifreeze or hot water from a bucket truck and a hose attached to the bucket truck while the aircraft is stopped at an apron or spot. Ice and snow are removed by hand while spraying on wings.

[0003]

However, in the above conventional configuration, the aircraft leaves the spot for takeoff,
While waiting for takeoff while taxiing the taxiway toward the runway, ice and snow may accumulate again on the wings.Depending on the amount of ice and snow accumulated, it may be necessary to return to the spot and remove the ice again. Problems that hinder the process. In addition, there is a problem that it may be difficult to remove ice and snow in a short time in the operation by human power.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an ice and snow removing system for efficiently removing ice and snow from an aircraft at an airfield.

[0005]

According to a first aspect of the present invention, there is provided a system for removing ice and snow, which is provided on a taxiway of an airfield near a runway, and which jets a fluid for removing ice and snow to an aircraft. Things.

In this configuration, ice and snow attached to an airplane is removed more efficiently by mechanical work for removing ice and snow by ejecting a fluid from a gate, as compared to manual work. By removing ice and snow just before taking off,
Operational hindrance due to re-adhesion of ice and snow is prevented, and the punctuality of airplane operation is improved.

According to a second aspect of the present invention, there is provided an ice / snow removing system which is provided on a taxiway of an airport near a maintenance area, and which includes a gate for ejecting a fluid for removing ice / snow to an aircraft.

[0008] In this configuration, the ice and snow attached to the airplane is removed more efficiently by the mechanical work of removing the ice and snow by ejecting the fluid from the gate, as compared with the work by manpower. By removing ice and snow just before entering the maintenance area,
Ice and snow are prevented from being brought into the maintenance area, thereby preventing maintenance problems.

According to a third aspect of the present invention, there is provided the ice and snow removing system according to the first or second aspect, wherein a sensor for detecting a shape of the aircraft; and a control means for controlling a fluid ejection state based on information detected by the sensor. And;

In this configuration, the fluid is used efficiently.

According to a fourth aspect of the present invention, in the ice / snow removing system according to any one of the first to third aspects, the gate ejects a plurality of types of fluids.

In this configuration, by using a plurality of types of fluids in combination, efficient or quick removal work becomes possible.

According to a fifth aspect of the present invention, there is provided the ice and snow removing system according to any one of the first to fourth aspects, further comprising a collecting means for collecting the removed ice and snow on the ground surface.

In this configuration, it is possible to prevent the removed ice and snow from hindering ground operation.

According to a sixth aspect of the present invention, in the ice and snow removing system of the fifth aspect, the collected ice and snow is melted and used.

In this configuration, resources can be utilized by reusing the collected ice and snow.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the ice and snow removing system of the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view of an airfield showing an embodiment of an ice and snow removing system, FIG. 2 is a perspective view showing an ice and snow removing system, FIG. 3 is a partial perspective view showing the ice and snow removing system, and FIG. FIG. 5 is a sectional view taken along line II of FIG. 3 showing the removal system.
FIG. 6 is a cross-sectional view showing another embodiment of the ice and snow removing system at a position corresponding to II-II in FIG. 3. Note that, for the sake of explanation, the ratio between the length dimension and the width dimension of each part is changed and expressed.

In FIG. 1, reference numeral 1 denotes an airfield runway (R /
W) and 2 are aprons, and a plurality of taxiways (T / W) 3 are connected between the runway 1 and the apron 2. A terminal building (PTB) 4 is provided facing the apron 2. Further, 5 is an aircraft. In addition, on the taxiway 3, marker lights 7 are buried and installed at predetermined intervals.

As shown in FIGS. 1 to 4, the taxiway 3 is provided with an ice and snow removing system 11 at a position close to the runway 1. The ice and snow removing system 11 controls a gate 12 installed over the taxiway 3, a collecting unit 14 surrounding the gate 12 and disposed on the ground surface, and an operation of the gate 12 and the collecting unit 14. Control means (not shown) are provided.

The gate 12 includes pillars 21 erected on both sides of the guide path 3 so as to face each other, and a bridge 22 connecting the upper ends of the pillars 21 to each other. A plurality of nozzles 24 are provided in the pillar portion 21 and the erection portion 22, and jet a plurality of types of fluids 25, such as antifreeze, hot water, and compressed air, toward the aircraft 5 that is taxiing the taxiway 3, that is, traveling. It has become. Further, a plurality of sensors 27 are provided on the pillar portion 21, or the pillar portion 21 and the erection portion 22, and the shape and the position such as the size of the aircraft 5 passing through the gate 12, especially the ice and snow easily accumulate. Check the shape and position of the wing. Then, based on the data of the sensor 27, the control means appropriately ejects a fluid from each nozzle 24 to remove ice and snow attached and accumulated on the body of the aircraft 5, especially the wing.

As shown in FIG. 3 and FIG. 4, the recovery means 14 is installed in the guideway 3 in a so-called pad shape, and is a permeated pavement on which a liquid such as moisture can penetrate. A section 31 and a linear heater 32 embedded in the infiltrated pavement section 31 are provided. Also, seepage pavement section 31
Is formed so as to be lower in both sides with the central portion in the width direction as a vertex, and a collection pipe portion 34 is provided inside. Then, the ice or snow or fluid removed from the aircraft 5 travels on the surface of the infiltration pavement 31 or penetrates the infiltration pavement 31 via the pipe 34, and a part or all of the ice or snow is provided on both sides of the taxiway 3. It is collected in the side groove 35 which is the collected part. In addition, as a configuration for collecting ice and snow in the gutter 35 which is a recovery unit, the configuration shown in FIG.
As shown in (1), grooving, that is, an uneven portion 37 can be formed on the surface of the guideway 3, and ice and snow melted by the heater 32 can be collected by flowing through the surface of the guideway 3. Also,
The infiltrated pavement portion 31 or the uneven portion 37 can be formed using another member such as an iron plate such as punched metal.

According to the present embodiment, the aircraft 5
An ice / snow removal system 11 for aircraft is provided to remove ice and snow that accumulates on the taxiway 3 by means of a gate 12 provided on the taxiway 3.
Efficient removal work becomes possible.

Further, the ice and snow removing system 11 includes the taxiway 3
Is provided at a position close to the runway 1. Therefore, by removing ice and snow just before takeoff, aircraft 5
Punctuality can be improved. That is, although taxing is possible even if ice and snow accumulates on the aircraft 5, even if ice and snow are once removed with the apron 2, ice and snow may accumulate again during takeoff waiting. On taxiway 3,
By providing an area for removing ice and snow and removing the ice and snow immediately before takeoff, work can be performed most efficiently, and hindrance to operation can be suppressed.

Since the time from removal of ice and snow to takeoff can be extremely short, not only antifreeze but also hot water or compressed air can be used, and operation costs can be reduced.

Further, by using a plurality of liquids such as hot water and antifreeze, and fluids such as compressed air and the like from the nozzle 24 of the gate 12 in combination, it is possible to quickly remove ice and snow, Depending on the control of the control means, it is possible to operate with priority given to cost over work speed.

Further, based on the data from the sensor 27, the control means injects a fluid from each nozzle 24 as appropriate in accordance with the size of the wings and the like, and removes the ice and snow attached and deposited on the body of the aircraft 5, especially the wings. By doing so, efficient work becomes possible.

The ice and snow removed by the collecting means 14 is changed into a liquid by a heater 32 as necessary.
Since it can be collected in the gutter 35 by infiltration, the taxiway 3
Ice and snow do not accumulate on the ground, and the ground running of the aircraft 5 can be kept smooth. Also, the work of removing ice and snow on the road surface by manual power can be eliminated.

Further, resources such as collected ice and snow or fluid 25 such as fluid 25 can be reused for removing ice and snow by spraying the liquid from nozzle 24 or the like.

The marker lamp 7 buried in the taxiway 3 or the runway 1 has a lamp body, a reflecting mirror, an annular lens, and the like housed inside the lamp body. It is necessary to periodically inspect whether or not the lens is maintained, and it is necessary to appropriately clean the lens exposed to the outside. As for such a maintenance device and a machine such as an aerial beacon lamp, conventionally, a washing car and a photometer car which separate washing and photometry and have dedicated functions are used. However, nighttime operations are performed at the airport, and the working time in the restricted area is significantly shortened, and it becomes difficult to operate the vehicle temporally when the vehicle is separated from washing and photometry.
Therefore, with the aim of realizing highly efficient maintenance of the washing car, a washing mechanism that cleans the marker lights buried on the road surface such as runways and taxiways, and a measurement mechanism that determines the cleaning effect before and after cleaning , And the cleaning effect is confirmed, the cleaning time is set, and the replacement lamp is selected by one vehicle. The cleaning process is controlled based on the actual light quantity of the lamp. This configuration has an effect that efficient maintenance can be realized.

The washing car, that is, the washing photometering car, is provided with a washing mechanism for washing a lens of a sign lamp and the like, and a measuring mechanism for measuring a light amount in a washing section. The cleaning mechanism includes, in addition to a cleaning nozzle that sprays a cleaning liquid, an air jet unit that jets high-pressure air, a brush, and the like as appropriate.
The measuring mechanism includes a photometer such as an illuminometer using a light receiving element (device) such as a CCD camera or a silicon photodiode, and performs photometry before and after cleaning. It is to be noted that an optical fiber or the like may be provided and a sensor or the like may be provided separately. With this configuration, waterproof measures can be easily performed. Further, this washing car is provided with control means including storage means such as a CPU, a ROM, and a RAM.

FIG. 6 is a flowchart showing the operation of the washing car.

That is, the washing car is moved so that the washing section matches the position of the marker light. Next, the light quantity of the marker lamp is measured by the measuring mechanism before washing (step 1).
If the marker lamp is on (step 2), the data of the light amount measured in step 1 is fed back to set a cleaning time and cleaning is performed by the cleaning means (step 3). Next, after cleaning, the light amount is measured again (step 4).
If the luminous intensity is 70% or more of the specified luminous intensity (step 5), the number of the washed marker light, that is, the lamp and the photometric data are recorded (step 6), and the apparatus moves to the next lamp. If the light amount is equal to or less than the specified value in step 5, the cleaning is performed again (step 3), and photometry is performed (step 4). Here, if the light amount is equal to or less than the specified value (step 5,
7) It is determined whether the light amount is equal to or more than a second specified value, for example, 50% of the specified luminous intensity (Step 8). Record the lamp number and photometric data (step 6) and move to the next lamp. On the other hand, if it is determined in step 2 that the marker lamp is not turned on, and if the light amount does not exceed the second specified value in step 8, the number of the lamp is set as the extinguishing lamp requiring replacement. Record (step 9) and move to the next lamp.

The gate 12 of the ice and snow removal system 11
Various configurations other than those shown in FIG. 2 can be adopted.

FIG. 7 is a perspective view showing another embodiment of the gate of the ice and snow removing system, FIG. 8 is a perspective view showing still another embodiment of the gate of the ice and snow removing system, and FIG. 9 is a gate of the ice and snow removing system. FIG. 14 is a perspective view showing still another embodiment of FIG.

That is, as shown in FIG. 7, the gate 12 is inclined so as to be lower on both sides with the central portion of the erection portion 22, that is, the central portion in the width direction of the guide path 3 as an apex, or as shown in FIG. As shown, a pair of bridging portions 22 on both sides can be provided by separating the central portion. In these configurations, by arranging the gate 12 avoiding the vertical tail having a large height dimension, the device can be downsized, the manufacturing cost and the maintenance management cost can be reduced, and the main wing and the snow and snow on which the snow and ice are easily attached and deposited can be reduced. Ice and snow on the horizontal tail can be removed.

Further, the gate 12 may be provided only with the pillar portion 21 without providing the bridge portion 22. Then, in the configuration in which the erection part 22 is provided, or in the configuration in which the erection part 22 is not provided,
As shown in FIG. 9, an elevating nozzle unit 41 that can be moved in the longitudinal direction or the like is provided on each pillar 21 or the like, and the nozzle 24 can be arranged on each nozzle unit 41. And
These nozzle units 41 are moved by control means based on data from the sensor 27.
Further, the nozzle unit may include a multi-joint robot arm or the like.

In each of the above embodiments, the runway 1
Although the configuration in which the ice and snow removal system 11 is arranged on the taxiway 3 close to the above has been described, the ice and snow removal system 11 can be arranged at another position.

FIG. 10 is a plan view of an airfield showing another embodiment of the ice and snow removing system.

That is, as shown in FIG.
44, that is, the configuration including the ice and snow removal system 11 that removes ice and snow accumulated by the gate 12 provided in front of the maintenance hangar 45, by mechanical work for ejecting fluid from the gate 12 to remove ice and snow, compared to manual work. Ice and snow on the aircraft 5 can be efficiently removed and
By removing ice and snow just before entering 44, the maintenance area 44
Ice and snow can be prevented from being brought into the facility, and maintenance problems due to ice and snow can be prevented.

[0041]

According to the system for removing ice and snow according to the first aspect of the present invention, ice and snow attached to the airplane can be more efficiently removed by mechanical work for removing the ice and snow by spraying a fluid from the gate as compared with manual work. By removing the ice and snow immediately before the start of the takeoff operation, it is possible to prevent the operation from being hindered by the reattachment of the ice and snow, and to improve the punctuality of the operation of the airplane.

According to the second aspect of the present invention, the ice and snow attached to the airplane can be removed more efficiently by the mechanical work of removing the ice and snow by ejecting the fluid from the gate, as compared with the manual operation. By removing ice and snow just before entering the maintenance area, it is possible to prevent ice and snow from being brought into the maintenance area and prevent trouble in maintenance.

According to the third aspect of the present invention, in addition to the effects of the first or second aspect, in addition to the effects of the first and second aspects, a sensor for detecting the shape of the aircraft and a control for controlling a fluid ejection state based on information detected by the sensor. The means can efficiently use the fluid.

According to the ice and snow removing system of the fourth aspect, in addition to the effect of any one of the first to third aspects, by combining and jetting a plurality of types of fluids from the gate,
Efficient or quick removal work.

According to the ice and snow removing system of the fifth aspect, in addition to the effect of any one of the first to fourth aspects, since the ground surface is provided with a recovery means for recovering the removed ice and snow, the surrounding environment is adversely affected. In addition to this, it is possible to prevent the removed ice and snow from hindering ground operation.

According to the ice and snow removal system of the sixth aspect, in addition to the effect of the fifth aspect, resources can be utilized by reusing the collected ice and snow.

[Brief description of the drawings]

FIG. 1 is a plan view of an airfield showing an embodiment of an ice and snow removal system according to the present invention.

FIG. 2 is a perspective view showing the ice and snow removing system according to the first embodiment;

FIG. 3 is a perspective view showing a part of the ice and snow removing system.

FIG. 4 is a sectional view taken along line II of FIG. 3 showing the ice and snow removing system according to the first embodiment;

FIG. 5 is a view showing another embodiment of the ice and snow removing system according to the second embodiment;
FIG. 2 is a cross-sectional view of a position corresponding to II-II in FIG.

FIG. 6 is a flowchart showing the operation of the washing car.

FIG. 7 is a perspective view showing another embodiment of the gate of the ice and snow removing system of the present invention.

FIG. 8 is a perspective view showing still another embodiment of the gate of the ice and snow removing system of the present invention.

FIG. 9 is a perspective view showing still another embodiment of the gate of the ice and snow removing system of the present invention.

FIG. 10 is a plan view of an airfield showing another embodiment of the ice and snow removing system of the present invention.

[Explanation of symbols]

 1 Runway 3 Taxiway 5 Aircraft 11 Ice and snow removal system 12 Gate 14 Recovery means 25 Fluid 27 Sensor 44 Maintenance area

Claims (6)

[Claims] 1. An ice and snow removing system, comprising: a gate provided on a taxiway of an airport near a runway, for injecting a fluid for removing ice and snow from an aircraft. 2. A system for removing snow and ice, comprising: a gate provided on a taxiway of an airport near a maintenance area, and for injecting a fluid for removing ice and snow from the aircraft. 3. The ice and snow removing system according to claim 1, further comprising: a sensor for detecting a shape of the aircraft; and control means for controlling a fluid ejection state based on information detected by the sensor. . 4. The ice and snow removing system according to claim 1, wherein the gate ejects a plurality of types of fluids. 5. The ice and snow removal system according to claim 1, further comprising a collection means for collecting the removed ice and snow on the ground surface. 6. The ice and snow removing system according to claim 5, wherein the collected ice and snow is melted and used.