JP2007331823A - Fuel oil supply vehicle for ships - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fuel oil supply vehicle for ships capable of performing an appropriate emergency countermeasure when an excessive tension, bending force and other loads act against a fuel oil supply hose during fuel oil supplying operation, capable of performing an appropriate countermeasure automatically when a certain trouble occurs at a working operator and realizing these countermeasures in an easy and simple manner under a superior cost reduction state. <P>SOLUTION: This fuel oil supply vehicle 1 forcedly feeds and supplies fuel oil A loaded in a tank 2 and this fuel oil supplying operation is carried out by coupling and connecting the extremity end of a fuel oil supplying hose 4 to a fuel oil supplying port C on the side of a ship B. Then, the fuel oil supplying hose 4 is provided with a break-away coupling 10 and an opening or closing device D. The break-away coupling 10 can be separated in a forward or rearward direction when an excessive tension or other loads act against the fuel oil supplying hose 4 and at the same time can close the front part and rear part of its separated location. The opening or closing device D can open or close a flow passage for the fuel oil A in the fuel oil supplying hose 4 through turning-on or off operation at an operating part 20. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a marine fuel tanker. That is, the present invention relates to a fuel supply vehicle that supplies fuel oil loaded in a tank to a ship.

《Technical background》
Fuel oil is supplied to small ships using a fuel tanker. In other words, for refueling small vessels, a fuel refueling vehicle is parked on the quay, and the fuel oil loaded from the tank mounted on the fuel refueling vehicle is pumped to the ship via a refueling hose by a pump. Is done by doing.

<Conventional technology>
In this type of refueling, the tip of the refueling hose extended from the fuel refueling vehicle side is connected to the ship-side refueling port. That is, on the ship, refueling has been carried out by connecting the tip of the oil supply hose to the ship-side oil supply port and performing an opening / closing operation thereof.
The connection between the tip of the refueling hose and the refueling port of the ship is often carried out by a tight connection, that is, a joint connection method, considering that the refueling is performed at sea, where the effects of waves and other factors are also serious. Therefore, an accidental spill of fuel oil due to disconnection during refueling was prevented.

By the way, the following problems have been pointed out with respect to such a conventional example.
<First problem>
First, the possibility of cutting the oil hose during refueling has been pointed out. As mentioned above, when refueling, the refueling hose is extended and interposed between the stationary quay side, that is, the fuel refueling vehicle side, and a movable ship that is also concerned about the effects of floating waves on the sea. The possibility that excessive tensile force, bending force, and other loads act during refueling cannot be denied.
In other words, depending on the situation of the ship, when the positional relationship between the ship and the fuel tanker changes during refueling, and excessive tensile force, bending force, or other load is applied to the refueling hose, the fuel hose is disconnected. Instead of not happening, the fuel hose was damaged, ruptured, broken, etc., and there was a risk of causing an external spill of fuel oil, which was pointed out as a problem.

<< Second problem >>
Secondly, problems were raised in dealing with troubles in workers. That is, as described above, the oil supply to the ship is performed by an operator opening and closing the joint by connecting the tip of the oil supply hose to the oil supply port on the ship.
Therefore, such workers who are refueling leave their place, cardiac palsy, other physical unforeseen situations, or accidents such as falls, bruises, and underwater drops due to work on the ship. If this accident occurs, it will not be possible to deal with the abnormality. In this case, the refueling will continue without being closed and the fuel oil will continue to be opened, resulting in an excessive fuel oil accident or an external spill accident. It was pointed out as a problem.

<< About the present invention >>
In view of such circumstances, the marine fuel tanker of the present invention has been made to solve the problems of the conventional example.
The first aspect of the present invention is to appropriately and automatically cope with excessive tension, bending force, and other loads acting on the oiling hose that is being lubricated, and secondly, to troublesome workers who are refueling. Even if a problem occurs, and even if the worker who is refueling leaves the workplace, it is possible to cope with it automatically, and thirdly, this is easily and easily realized with excellent cost. The purpose is to propose a fuel-fueled vehicle.

<About Claim>
The technical means of the present invention for solving such a problem is as follows. Claim 1 is as follows. The marine fuel oil vehicle according to claim 1 pumps and refuels the fuel oil loaded in a vehicle-mounted tank to the marine vessel with a pump. Refueling is performed by connecting and coupling the coupling at the tip of the refueling hose to the refueling port on the ship side via a refueling hose.
The refueling hose is provided with a breakaway coupling and an opening / closing device. The breakaway coupling can be separated forward and backward when an excessive tensile force, bending force, or other load is applied to the oil supply hose when refueling, and can also be closed at each separation point.
The opening / closing device is characterized in that the fuel oil flow path of the oil supply hose can be opened and closed when the fuel is supplied by an on / off operation of an attached operation unit.

Claim 2 is as follows. According to a second aspect of the present invention, the breakaway coupling includes a stop pin and a valve body.
The stop pin is arranged on the outside, and the front and rear are normally closely connected together. When an excessive tensile force, bending force, or other load is applied to the oil supply hose, the tensile force, Breaks based on bending force and other loads, and separates into front and back. The valve bodies are arranged in a pair of front and rear, and are always positioned in a retracted posture that opens the flow path of the fuel oil against the biasing force of the interposed springs, and excessive tension is applied. When a force, bending force, or other load is applied, it is positioned in a blocking posture that closes the flow path based on the biasing force of the spring.
The opening / closing device includes a piston facing the flow path of the fuel oil, and a spring interposed toward the piston.
While the operation portion is turned on, the piston takes an open position that opens the flow path against the urging force of the spring based on the pressure of the fuel oil. When the operation portion is operated off, the piston takes a closed position for closing the flow path based on the biasing force of the spring.

<About the action>
Since the present invention comprises such means, the following is achieved.
(1) When refueling from a fuel refueling vehicle to a ship, a refueling hose is pulled out, and a coupling at the tip of the refueling hose is coupled and connected to the refueling port of the ship.
(2) Then, when the operator turns on the operation unit on the ship, the opening / closing device is switched to open, and the fuel oil is supplied from the tank of the fuel oil vehicle via the oil supply hose, etc. Refueled to the mouth.
(3) When the refueling is finished, the operator turns off the operation unit on the ship, so that the opening / closing device is switched to the closed state and the refueling is finished.

(4) When refueling, the refueling hose is extended and interposed between the stationary fuel refueling vehicle and the ship movable at sea. Therefore, during refueling, an excessive tensile force or other load acts on the refueling hose, and there is a risk that the refueling hose may be damaged, split or split.
(5) Therefore, a breakaway coupling is provided in the fueling hose of the fuel vehicle, and when such an excessive load is applied, the fueling hose is separated back and forth at the breakaway coupling. At the same time, the separation points are closed.
In this way, the breakaway coupling automatically operates in an emergency, so that the occurrence of damage, tears, splits, and the like is prevented with respect to the refueling hose that is being refueled.

(6) In addition, there is a possibility that an unexpected physical accident such as sudden illness will occur for an operator who is refueling, or an unexpected accident such as a fall or fall will occur due to work on an unstable ship. There is also. Furthermore, there is a possibility that the worker who is refueling will leave the office. If refueling is continued in such a case, dangers such as excessive refueling of fuel oil and external spillage occur.
(7) Therefore, the fuel hose of the fuel vehicle is provided with an opening / closing device with a predetermined operation section, and the fuel oil flow path is opened only while the operator is turning on the operation section. However, if the worker has an unexpected situation or accident and the operation unit is turned off, the switchgear is closed. In other words, if a worker who is refueling unintentionally removes his / her hand from the operating section, the flow path of the refueling hose is automatically closed immediately, so there are dangers such as continued refueling, excessive refueling, and external leakage. Avoided.
(8) Moreover, this fuel refueling vehicle has a simple configuration in which a predetermined breakaway coupling and an opening / closing device with an operation unit are provided for a refueling hose that is not a vehicle body side but only an accessory, The above-mentioned place is easily realized.
(9) Now, this marine fuel tanker exhibits the following effects.

<< First effect >>
First, when an excessive tensile force, bending force, or other load is applied to the refueling hose during refueling, it can be automatically handled appropriately.
In other words, the fuel vehicle according to the present invention is provided with a breakaway coupling on the fueling hose. When an excessive tensile force, bending force, or other load is applied, the fueling hose is placed at the breakaway coupling. Emergency, automatically separated and closed. As in the case of this type of conventional example described above, in such a case, it is possible to prevent the fuel supply hose from being damaged, torn, or divided, and to eliminate the risk of fuel oil external leakage.

<< Second effect >>
Secondly, it is possible to automatically and appropriately cope with an unexpected situation or trouble such as an accident in a refueling worker.
That is, the fuel refueling vehicle of the present invention is provided with an opening / closing device with a predetermined operation part on the refueling hose, and the flow path is opened when the operator operates the operation part, and the flow path is automatically closed when the operation is turned off. It becomes.
Therefore, in the event of an unforeseen situation such as heart attack or other unforeseen circumstances or an accident such as a fall, bruise, or fall in the sea of a worker who is refueling on a ship, the worker who is refueling However, in such a case, it is prevented that the refueling is continued as in the above-described conventional example. This eliminates the dangers of fuel oil overfill accidents and external spill accidents.

《Third effect》
Third, they are easily realized with a simple configuration. In the fuel refueling vehicle of the present invention, the above-described first and second points are easily realized by providing the fuel hose with the predetermined breakaway coupling and the opening / closing device.
In other words, there is no need to remodel the fuel supply pipe of the fuel tanker body, no pressure test or re-inspection of the vehicle, etc. It can be applied immediately to tank trucks. Furthermore, an existing break-away coupling or a hand-type opening / closing device with a predetermined operation part may be attached to the fuel supply hose and installed in the fuel oil vehicle or tank truck, which is excellent in labor and cost.
As described above, the effects exerted by the present invention are remarkably large, such as all the problems existing in this type of conventional example are solved.

《About drawing》
DESCRIPTION OF EMBODIMENTS Hereinafter, a marine fuel tanker according to the present invention will be described in detail based on the best mode for carrying out the invention shown in the drawings.
1 to 5 are used to explain the best mode for carrying out the present invention. 1 is a front cross-sectional view of the main part, FIG. 2 is a front cross-sectional view of the main part when the switchgear is closed and the flow path is closed, and FIG. 3 is a schematic view of the main part when the switchgear is open and the flow path is open. FIG. FIG. 4 is a front cross-sectional view of the main part with the breakaway coupling separated and the flow path closed. FIG. 5 is an explanatory diagram of the whole.
FIG. 6 shows a fuel refueling vehicle, (1) FIG. 6 is a schematic plan view, and (2) is a schematic side view. FIG. 7 is a schematic plan view showing a state of refueling a ship with a fuel refueling vehicle.

<< About the fuel tanker 1 >>
First, the marine fuel tanker 1 will be generally described with reference to FIGS. This fuel refueling vehicle 1 pumps and refuels fuel oil A loaded in a vehicle-mounted tank 2 to a ship B with a pump 3. Then, refueling is performed by connecting the coupling 5 at the tip of the refueling hose 4 to the refueling port C on the ship B side via the refueling hose 4.
Such a fuel refueling vehicle 1 will be further described in detail. A tank 2 is mounted on the chassis of the fuel tank 1, and fuel oil A is loaded into a tank chamber in the tank 2 from a storage tank in an oil tank station. One end of an oil supply pipe 6 is connected to the tank 2. The oil supply pipe 6 has a line strainer 7 for filtering the fuel oil A, a pump 3 for pumping, a filter 8 for cleaning, and other oil supplies. Equipment is provided.
The base end of the oil supply hose 4 is connected to the other end of the oil supply pipe 6. The oil supply hose 4 is wound around an in-vehicle hose reel 9 when retracted, and is pulled out during oil supply to the ship B side. It is extended. A coupling 5 is provided at the tip of the oil supply hose 4, and the coupling 5 is tightly fixed or connected to the ship-side oil supply port C at the time of oil supply.
Therefore, the fuel tank 1 loads and transports fuel oil A into the tank 2, stops at the quay of the destination, and supplies the fuel tank of the ship B, the unloading destination, to the fuel tank 6, the fuel hose 4, and the fuel. Fuel oil A is supplied through the port C or the like.
This fuel refueling vehicle 1 is roughly as described above.

<< About the fuel tanker 1 of this invention >>
Hereinafter, the fuel oil vehicle 1 of the present invention will be described with reference to FIGS. In this fuel supply vehicle 1, a breakaway coupling 10 and an opening / closing device D are provided in a fuel supply hose 4.
In the illustrated example, the breakaway coupling 10 for emergency detachment, the automatic closing / closing device D, the coupling 5 to the fuel filler port C of the ship B, and the like, from the upstream side to the downstream side at the tip end of the fuel hose 4. Are arranged in this order. Hereinafter, these will be described in detail.

<About Breakaway Coupling 10>
First, the breakaway coupling 10 will be described with reference to FIG. 1, FIG. 2, FIG. 3, and FIG. The breakaway coupling 10 for emergency detachment can be separated forward and backward when an excessive tensile force, bending force, or other load is applied to the oil supply hose 4 and can be closed at each separation point.
That is, the breakaway coupling 10 includes a stop pin 11 and a valve body 12. The stop pin 11 is disposed on the outside, and normally, the front and rear of the breakaway coupling 10 are integrally and closely connected, and an excessive tensile force, bending force, and other loads are applied to the oil supply hose 4. When this occurs, it breaks and separates back and forth based on its tensile force, bending force, and other loads.
The valve bodies 12 are provided in a pair of front and rear, and are normally positioned in a retracted posture that opens the flow path of the fuel oil A against the urging force of the interposed spring 13, and the refueling hose When an excessive tensile force, bending force, or other load is applied to 4, the block 4 is positioned in a blocking posture to close the flow path based on the biasing force of the spring 13.

Such a breakaway coupling 10 will be further described in detail. The breakaway coupling 10 has a substantially short tubular shape and has a flow path formed therein. The breakaway coupling 10 includes a front portion 14 and a rear portion 15 that form a front-rear pair, and includes a stop pin 11 and a valve body 12. .
First, the stop pin 11 will be described. As shown in FIGS. 1, 2 and 3, the front portion 14 and the rear portion 15 of the breakaway coupling 10 are always integrated with each other by, for example, a plurality of retaining pins 11 attached to the outside. Closely connected. The stop pin 11 is made of, for example, a shear pin, and is inserted through through holes formed between the outer flange portions 16 formed on the front and rear opposing surfaces of the front portion 14 and the rear portion 15. The front part 14 and the rear part 15 are intimately connected to each other by closely fixing the parts 16 to each other.
In addition, when the load such as an excessive tensile force, bending force, shearing force, compressive force, etc. is applied to the oil supply hose 4, the set pin 11 has a strength setting for breaking and separating based on the force. As shown in FIG. 4, when the retaining pin 11 is broken and separated, the breakaway coupling 10 is separated forward and backward between the front and rear outer flange portions 16, that is, between the front portion 14 and the rear portion 15.
Note that the excessive tensile force, bending force, shearing force, and compressive force are external forces that may cause damage, tearing, splitting, and the like of the oil supply hose 4.

Next, the valve bodies 12 of the breakaway coupling 10 are attached in pairs in the front portion 14 and the rear portion 15.
That is, each of the valve bodies 12 is attached to the mounting portion 17 projecting from the flow path in the front portion 14 and the rear portion 15 of the breakaway coupling 10 via the rotation shaft S and the interposed spring 13. Installed. The valve bodies 12 in the illustrated example are each urged clockwise by a spring 13.
The valve bodies 12 are normally positioned in a retracted posture that opens the flow path against the urging force of the spring 13 as shown in FIGS. In the illustrated example, the valve body 12 on the front portion 14 side and the valve body 12 on the rear portion 15 side, which are respectively urged by the spring 13, are associated with the close connection between the front portion 14 and the rear portion 15 by the stop pin 11 described above. By being locked up and down between the end portions, it is positioned and held in a horizontal posture and a retracted posture to open the flow path.
In contrast, when an excessive load such as a tensile force, bending force, shearing force, torsional force, or compressive force is applied to the oil supply hose 4, the front portion 14 and the rear portion 15 are moved back and forth as the retaining pin 11 is broken and separated. Therefore, both valve bodies 12 are displaced and positioned in a vertical posture and a blocking posture for closing the flow path.
That is, as the front portion 14 and the front portion 15 are separated from each other, the two valve bodies 12 are released from the above-described engagement between the end portions, and the rotation shaft S is based on the biasing force of each spring 13. Is pivotally displaced about the fulcrum, so that it is closely fitted and fixed to the inner flange portion 18 formed at the downstream end of the front portion 14 and the upstream end of the rear portion 15. In this way, both valve bodies 12 are positioned in a vertical posture and a blocking posture for closing the flow path. In the figure, reference numeral 19 denotes a coupling portion including an adapter for connection to the oil supply hose 4.
The breakaway coupling 10 is as described above.

<< About switchgear D >>
Next, the opening / closing device D that can be automatically closed will be described with reference to FIGS. The opening / closing device D can open and close the flow path of the fuel oil A of the fuel supply hose 4 by an on / off operation of the operation unit 20 attached thereto.
That is, the opening / closing device D includes a chamber 21, a piston 22 facing the chamber 21, and a spring 23 interposed toward the piston 22.
While the operation unit 20 is being turned on, the fuel oil A is introduced into the chamber 21, and the piston 22 resists the urging force of the spring 23 based on the pressure of the introduced fuel oil A to Take an open position to open the oil A flow path. On the other hand, when the operation unit 20 is turned off, the introduction of the fuel oil A into the chamber 21 is automatically blocked, and the piston 22 closes the flow path of the fuel oil A based on the biasing force of the spring 23. Take the closed position to do.

Such an opening / closing device D will be further described in detail. First, as shown in FIG. 3, the operation unit 20 attached to the opening / closing device D is in an on-operation state only while the operator continues to hold the grip unit 24 by hand. On the other hand, as shown in FIGS. 1 and 2, when the worker removes his / her hand from the grip portion 24, the normal operation is automatically turned off by the biasing force of the interposed spring. The operation unit 20 is also called a deadman switch.
As described above, the operation unit 20 is turned on by gripping the grip portion 24, and the opening / closing device D opens the flow path of the fuel oil A based on this operation. When the gripping part 24 is released, the operation is turned off. Based on this, the opening / closing device D automatically closes the flow path of the fuel oil A. The opening / closing device D is also called a deadman valve.
The positional relationship between the operation unit 20 and the opening / closing device D depends on the dimension setting of the branch pipe 25 made of a hose interposed therebetween, but in many cases when refueling the ship B, Used in close proximity.

And in this switchgear D, while the operation part 20 is turned on, as shown in FIG. 3, the fuel oil A from the upstream side is branched by a small amount, via the branch pipe 25, Furthermore, it is inserted in the middle of the branch line 25 and is introduced into the chamber 21 of the opening / closing device D through the opening operation unit 20 by an ON operation.
Accordingly, since the pressure of the fuel oil A introduced into the chamber 21 in this way is set so as to exceed the urging force of the spring 23, the piston 22 compresses the spring 23 so that it is in the open position on the left side in the drawing. It is displaced and moved for positioning. Therefore, the port portion 26 which is a valve hole forming the flow path of the fuel oil A main body is released from the closure by the piston 22, so that the fuel oil A passes through the piston 22 from the upstream side through the port portion 26, Flows downstream.
An auxiliary pipe 27 is interposed between the branch pipe 25 on the downstream side of the operation unit 20 and the downstream side of the flow path, and a throttle valve 28 is provided in the auxiliary pipe 27. Is provided. Therefore, in this open state, a small amount of fuel oil A is discharged downstream through the auxiliary conduit 27 and the throttle valve 28.
On the other hand, when the operation unit 20 is turned off, as shown in FIGS. 1 and 2, the flow of the fuel oil A branched and directed from the upstream side to the branch pipe 25 is turned off and closed. The operation unit 20 is shut off.
Therefore, in the switching device D, the branched fuel oil A is prevented from being introduced into the chamber 21 by the branch pipe 25, and the pressurized fuel oil A in the chamber 21 is prevented from flowing into the branch pipe 25. , And discharged to the downstream side through the auxiliary conduit 27, the throttle valve 28, and the like. As a result, the biasing force of the spring 23 is superior to the pressure in the chamber 21. Therefore, the piston 22 is displaced and moved to the closed position on the right side in the drawing by the urging force of the spring 23 and positioned. In this way, the port portion 26 that forms the flow path of the fuel oil A main body is automatically closed by the piston 22, thereby preventing and blocking the flow between the upstream and downstream of the fuel oil A.

First, the closing time from opening to closing of the opening / closing device D can be adjusted by the degree of throttling of the throttle valve 28, so that the surge pressure (pumped) in the flow path of the fuel oil A can be adjusted. It is possible to mitigate the occurrence of a sudden pressure increase accompanying the shutoff of the fuel oil A).
Secondly, between the operation unit 20 and the opening / closing device D, in the illustrated example, the operation unit 20 is directly interposed in the middle of the branch conduit 25, so that the opening / closing device D is controlled by the on / off operation of the operation unit 20. However, the present invention is not limited to this, and various other control methods can be adopted between the two.
For example, when the operation unit 20 is turned on / off, a solenoid valve is opened / closed via an electric wiring, and the branching line 25 is opened / closed by the solenoid valve to control the switching device D. It is also possible to control the open / close device D by opening / closing the air type open / close valve via the air pipe by the on / off operation, and opening / closing the branch pipe line 25 halfway with this air type open / close valve.
The opening / closing device D is as described above.

《Action etc.》
The marine fuel oil vehicle 1 of the present invention is configured as described above. Therefore, it becomes as follows.
(1) When refueling fuel oil A to the ship B as an unloading destination from the fuel refueling vehicle 1 stopped at the quay of the destination, first, the refueling hose 4 is pulled out from the hose reel 9 to the ship B side.
Then, the coupling 5 at the tip of the oil supply hose 4 is coupled and connected to the oil supply port C on the ship B side by an operator (see FIGS. 5, 6, and 7).

(2) Then, when the operator turns on the operation unit 20 on the ship B, the opening / closing device D is switched to open (see FIG. 3).
Therefore, after the fuel oil A passes through the fuel supply pipe 6, the pump 3, the fuel supply hose 4 and the like from the tank 2 of the fuel supply vehicle 1, it is pumped and supplied from the fuel supply port C of the ship B into the fuel tank. (See FIGS. 5 and 7).

(3) In this way, refueling is started. When the predetermined amount of fueling is completed, the operator on the ship B turns off the operation unit 20 to switch the opening / closing device D to the closed state (see FIG. 2), and the fueling is finished.
After that, the fuel supply hose 4 is wound around the hose reel 9 of the fuel supply vehicle 1 and the fuel supply vehicle 1 leaves the quay.

(4) Now, during the above-described refueling, the refueling hose 4 extends between the stationary quay side, that is, the fuel refueling vehicle 1 side, and the movable ship B side where there are concerns about the effects of floating waves and the like on the sea. It has been installed (see also FIG. 7).
Therefore, an excessive load, typically a tensile force or a bending force, may act on such an oil supply hose 4 during oil supply. Such a load may cause damage, tearing, splitting, or the like with respect to the fuel hose 4 that is supplying the fuel oil A.

(5) Therefore, the breakaway coupling 10 is provided in the refueling hose 4 of the fuel refueling vehicle 1 (see FIG. 5).
Therefore, when an excessive load is applied to the oil supply hose 4 as described above, the oil supply hose 4 is urgently and automatically separated before and after the breakaway coupling 10, and at the same time before and after the separation point. Each is closed (see FIG. 1, FIG. 2, FIG. 3 and FIG. 4 for comparison). In the illustrated example, the stop pin 11 is broken, and the breakaway coupling 10 is separated into the front part 14 and the rear part 15 in the front-rear direction. At the same time, both valve bodies 12 are separated with respect to the separated front part 14 and rear part 15. The flow path of the fuel oil A is closed.
In this way, the breakaway coupling 10 is automatically and urgently operated, so that the occurrence of damage, tearing, splitting, or the like is prevented with respect to the fuel supply hose 4 that is being supplied with fuel oil A.

(6) On the other hand, during the above-described refueling, an unexpected situation or an accident may occur in the worker.
That is, during refueling, the worker is on the ship B, and after the tip of the refueling hose 4 is connected to the refueling port C on the ship B side, the refueling operation is continued. And for such workers who are refueling, ship B or refueling due to work on an unstable ship where sudden physical illness such as sudden illness occurs or the influence of waves or the like is also a concern. An unforeseen accident such as a fall or drop may occur with the displacement operation of the hose 4 (see FIG. 7). Furthermore, there is a possibility that the worker who is refueling will leave the office.
In such a case, if refueling is continued, dangers such as excessive refueling of fuel oil A and outflow to the outside occur.

(7) Therefore, in the fuel supply hose 4 of the fuel supply vehicle 1, an opening / closing device D with a predetermined operation unit 20 is provided (see FIG. 5).
That is, as long as the worker is turning on the operation unit 20, the flow path of the fuel oil A is open and refueling to the ship B is continued (see FIG. 3). When there is a situation or accident and the operation unit 20 is turned off, the opening / closing device D is automatically closed immediately (see FIG. 2).
If a worker who is refueling unintentionally releases his hand from the grip portion 24 of the operation unit 20 due to an unexpected situation or accident, the flow path of the refueling hose 4 is immediately closed automatically, and refueling of fuel oil A continues. , Dangers such as excessive refueling and outflow are avoided.

(8) Moreover, these can be realized easily and easily. In other words, the fuel vehicle 1 has a simple configuration in which the fuel hose 4 is provided with a predetermined breakaway coupling 10 and an opening / closing device D with a predetermined operation unit 20 (see FIG. 5 and the like).
That is, the fuel oil vehicle 1 is simply attached to the fuel hose 4 which is merely an accessory without modifying the main body side, for example, the vehicle body side such as the oil supply pipe 6. In addition, it can be easily applied and adopted. Moreover, the break-away coupling 10 and the opening / closing device D with the hand-type predetermined operation unit 20 can be diverted and used as they are conventionally used except for the oil supply hose 4.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front sectional view of an essential part for explaining a best mode for carrying out the invention of a marine fuel oil vehicle according to the present invention. FIG. 5 is a front sectional view of a main part for explaining the best mode for carrying out the invention and showing a closed state of the flow path when the switchgear is closed. It is a front sectional view of a principal part for explaining the best mode for carrying out the present invention and showing the open state of the flow path when the switchgear is open. It is a front sectional view of a principal part for explaining the best mode for carrying out the invention and showing a breakaway coupling separation and a flow path closed state. FIG. 2 is an overall explanatory diagram for explaining the best mode for carrying out the invention. A fuel refueling vehicle is shown, (1) Figure is a schematic plan view, (2) Figure is a schematic side view. It is a plane schematic diagram showing the refueling state to the ship by the fuel refueling vehicle.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fuel oil vehicle 2 Tank 3 Pump 4 Oil hose 5 Coupling 6 Oil supply piping 7 Line strainer 8 Filter 9 Hose reel 10 Breakaway coupling 11 Stopping pin 12 Valve body 13 Spring 14 Front part 15 Rear part 16 Outer flange part 17 Attachment part DESCRIPTION OF SYMBOLS 18 Inner flange part 19 Coupling part 20 Operation part 21 Chamber 22 Piston 23 Spring 24 Grip part 25 Branch pipe line 26 Port part 27 Auxiliary pipe line 28 Throttle valve A Fuel oil B Ship C Fuel supply port D Opening / closing device S Rotating shaft

Claims (2)

A fuel refueling vehicle that pumps and refuels fuel oil loaded in a vehicle-mounted tank to a ship with a pump. The refueling is via a refueling hose and a coupling at the tip of the refueling hose is connected to the refueling on the ship side. Done by connecting to the mouth,
The refueling hose is provided with a breakaway coupling and an opening / closing device. When the breakaway coupling is refueled, an excessive tensile force, bending force, or other load is applied to the refueling hose. In addition, it can be separated back and forth, and each separation point can be closed.
A marine fuel oil vehicle, wherein the opening / closing device is capable of opening and closing a fuel oil flow path of the oil supply hose when refueling by an on / off operation of an operation portion provided thereto. The marine fuel tanker according to claim 1, wherein the breakaway coupling includes a stop pin and a valve body,
The retaining pin is arranged on the outside, and the front and rear are normally closely connected together. When an excessive tensile force, bending force or other load is applied to the oil supply hose, the tensile force or bending force is applied. Rupture based on force and other loads and divide back and forth,
The valve bodies are arranged in a pair of front and rear, and are always positioned in a retracted posture that opens the flow path of the fuel oil against the biasing force of the interposed springs, and excessive tension is applied. When a force, bending force, or other load is applied, it is positioned in a blocking posture to close the flow path based on the biasing force of the spring,
The opening / closing device includes a piston facing the flow path of the fuel oil, and a spring interposed toward the piston,
While the operation unit is turned on, the piston takes an open position that opens the flow path against the biasing force of the spring based on the pressure of the fuel oil, and the operation unit is operated off. And the piston takes a closed position to close the flow path based on the urging force of the spring.

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