JPH09290899A - Device for preventing confusion between oil-kinds in fuel-transferring device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent confusion between oil kinds for receiving tanks when transferring fuels to the plurality of receiving tanks, by restricting the flow of each fuel from a discharge opening to a receiving opening when the identification output signal of the identification circuit on the supplying side which identifies the kind of the oil in a supplying tank and the identification output signal of the identification circuit on the receiving side which identifies the type of the oil received in the receiving tank do not match. SOLUTION: A tank truck 1 has discharge valves 8, 9, and 10 which open/close discharge openings 5, 6, and 7, respectively, for letting out fuels from three supply tanks 2, 3, and 4, respectively, capable of storing the corresponding fuels whose kind are different from one another. A gas station 21 has receiving openings 25, 26, and 27 capable of receiving the corresponding fuels into three receiving tanks 22, 23, and 24, respectively, capable of storing the corresponding fuels of the different kinds. The connection of a connecting hose 32 to each of the receiving openings 25, 26, and 27 are checked by corresponding connection- detecting sensors 33, then, in the case the output signal of the identification circuit on the receiving side which identifies the oil kind of the receiving tank and the output signal of the identification circuit on the supplying side which identifies the kind of the oil in the supply tank do not match, shutoff valves 36, 37, and 38 are closed to prevent the flows of the fuels from the discharge openings 5, 6, and 7 to the receiving openings 25, 26, and 27, respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention, when a fuel is delivered from a supply tank of a tank truck to a receiving tank of a gas filling station, one of these receiving tanks is different from a planned fuel. The present invention relates to an oil species confusion prevention device in a fuel delivery device that prevents the supply of fuel.

[0002]

2. Description of the Related Art Conventionally, a tank truck has a plurality of supply tanks capable of accommodating fuels having different oil types, a discharge port capable of discharging fuel from each of these supply tanks, and each discharge port thereof. And a discharge valve that opens and closes. On the other hand, the gas station is provided with a plurality of receiving tanks capable of accommodating fuels having different oil types from each other, and an inlet allowing each of the receiving tanks to receive the fuel.

When the fuel is transferred (unloaded) from the supply tank of the tank truck to the receiving tank of the gas station, the discharge port of the supply tank is connected to the receiving port of the target receiving tank via a connecting hose or the like. , The discharge valve of the supply tank is opened, and the fuel in the supply tank is delivered to the receiving tank through the discharge valve.

[0004]

By the way, when connecting the discharge port of the supply tank to the reception port of the receiving tank, it is shown what kind of fuel is contained in each supply tank. This is done by comparing the oil type indication plate with the oil type indication plate that shows what kind of fuel should be received in each receiving tank, but this is done by the person supplying the fuel and the person receiving the fuel. And because they will have a meeting each time, as an accidental mistake,
There is a risk that a supply tank containing a fuel of a certain oil type will be connected to a receiving tank that is going to receive a fuel of a different oil type. Then, if such a "connection error" occurs, oil type confusion occurs in the receiving tank.

The present invention has been made by paying attention to the above circumstances, and it is possible to accommodate fuels having different oil types from any of a plurality of supply tanks capable of containing fuels having different oil types. It is an object of the present invention to prevent confusion of oil species in the receiving tank due to the above “connection error” when delivering fuel to any of the plurality of receiving tanks.

[0006]

[Means for Solving the Problems] The oil species confusion preventing device in the fuel delivery device of the present invention for achieving the above object is as follows.

According to the invention of claim 1, the tank truck 1 is
A plurality of supply tanks 2, 3 and 4 capable of accommodating fuels having different oil types from each other, and discharge ports 5, 6 and 7 capable of discharging fuel from these supply tanks 2, 3 and 4, respectively.
A plurality of receiving tanks 22, 2 are provided with discharge valves 8, 9, 10 for opening and closing these discharge ports 5, 6, 7, respectively, and a gas filling station 21 is capable of accommodating fuels having different oil types.
3, 24 and receiving ports 25, 26, 27 for allowing the receiving tanks 22, 23, 24 to receive fuel, respectively.
An opening detection sensor 12, which detects an opening operation of each of the discharge valves 8, 9, 10 in a fuel delivery device including
12, 12, connection detection sensors 33, 33, 33 for detecting the connection of the outlets 5, 6, 7 to the inlets 25, 26, 27, and the supply tanks 2, 3, 4, respectively. A supply side recording circuit 15 for making it possible to previously record the oil type of the injected fuel; A supply side determination circuit 16 that determines what kind of oil is in the supply tank based on the detection signals of the open detection sensors 12, 12, 12 and the output signal from the supply side recording circuit 15, and the connection detection sensor 33, 33,3
The receiving side determination circuit 40 for determining what kind of oil should be received in the receiving tanks 22, 23, 24 based on the detection signal of No. 3 and the output signal from the receiving side recording circuit 39, and both the determination circuits 16, 40. When the respective judgment output signals of No. 1 to No. 3 do not match, the discharge ports 5, 6, 7 through the reception ports 25, 26, 27
Means 36, 37, 38 for regulating the flow of fuel to the
42 and 42 are provided.

According to a second aspect of the present invention, in addition to the first aspect of the invention, the control means 36, 37, 38, 42 are received when the determination output signals of the both determination circuits 16, 40 do not match. Shutoff valves 36, 37 closing the inlets 25, 26, 27,
It is composed of 38.

According to a third aspect of the present invention, in addition to the first aspect of the invention, the regulating means 36, 37, 38 and 42 are provided with an alarm when the determination output signals of the both determination circuits 16 and 40 do not match. The alarm means 42 is provided.

According to a fourth aspect of the present invention, in addition to any one of the first to third aspects of the present invention, both of the determination circuits 16 and 4 are provided.
0 is connected wirelessly.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a fuel delivery device equipped with an oil species confusion prevention device according to an embodiment.

In the drawings, reference numeral 1 is a tank truck, and the tank truck 1 is capable of accommodating fuels having different oil types, for example, No. 1 to No. 3 supply tanks 2, 3, 4 and these supply tanks 2, 3,
Discharge ports 5, 6 that allow fuel to be discharged from 4 respectively
7 and discharge valves 8, 9 and 10 for opening and closing the discharge ports 5, 6 and 7, respectively. The above outlets 5, 6,
7 are gathered at a gathering discharge port 11 provided on the downstream side.

The supply tanks 2, 3 and 4 contain fuels of oil types A, B and C in this order. For example, the fuel of oil type A is gasoline, the fuel of B is kerosene, and the fuel of C is It is light oil.

Reference numeral 21 is a gas station (gas station), and the gas station 21 can store fuels of different oil types, for example, No. 1 to No. 3 receiving tanks 22, 23, 24 and these receiving tanks 22, 23, 24
Receptacle 2 for allowing fuel to be respectively received in 23 and 24
5, 26, 27. The receiving tank 22,
23 and 24 contain the fuels of oil types A, B and C in this order, that is, the oil types of the fuels that these receiving tanks 22, 23 and 24 should receive are A, B and C in this order. ing. Further, reference numerals 28, 29 and 30 denote refueling machines connected to the receiving tanks 22, 23 and 24, respectively,
A desired fuel is supplied to the vehicle 3 through the fueling machines 28, 29, 30.
It will be refueled to 1.

When the fuel is transferred from the tank truck 1 to the gas filling station 21, the collective discharge ports 11 of the discharge ports 5, 6, 7 and the desired receiving port among the receiving ports 25, 26, 27 are connected. Connection is made via a hose 32. The connecting hose 32 is mounted on the tank truck 1 or installed at the fueling station 21.

An opening detection sensor 12 for detecting the opening operation is attached to each of the discharge valves 8, 9 and 10. The tank truck 1 has a control unit 13 and
A wireless transmitter 14 that receives an output signal from the control unit 13 and transmits the output signal is mounted, and the output line of each open detection sensor 12 is connected to the control unit 13.

A connection detection sensor 33 for detecting connection of the connection hose 32 to the receiving ports 25, 26, 27 is attached to each of the receiving ports 25, 26, 27. A control unit 34 and a wireless receiver 35 that receives a transmission signal from the wireless transmitter 14 and sends the signal to the control unit 34 are installed in the gas station 11.
Output lines of the connection detection sensors 33 are connected to the control unit 34. And the above-mentioned entrances 25 and 2
6,27 and the receiving tanks 22,23,24 are connected to the fuel pipes from the discharge ports 5,6,7 to the receiving ports 25,26,
Shut-off valves 36, 37, 38 for closing the inlets 25, 26, 27 are provided as restriction means for restricting the flow of fuel to the valve 27.
Is provided.

The structure of the control unit 13 on the side of the tank truck 1 will be described with reference to FIG. The control unit 13 receives the input operation such as pressing a button, and the oil type of the fuel injected into each of the supply tanks 2, 3 and 4 is A,
Supply side recording circuits 15, 15 and 15 for enabling recording of which of B and C in advance, and the open detection sensors 1 described above.
The oil types in the supply tanks 2, 3 and 4 are A, B and C based on the detection signal of No. 2 and the output signal from each supply side recording circuit 15.
And a supply side determination circuit 16 for determining which of the above is the case. The determination output signal regarding the oil type determined by the supply side determination circuit 16 is sent to the wireless transmitter 14 and the wireless transmitter 14 Is transmitted to the wireless receiver 35.

The construction of the control unit 34 on the side of the gas station will be described with reference to FIG. This control unit 34
In response to an input operation such as pressing a button, the type of fuel to be received in each of the receiving tanks 22, 23, 24 is A,
Receiving tank by receiving side recording circuits 39, 39, 39 for making it possible to record in advance which of B and C, the detection signal of each coupling detection sensor 33 and the output signal from each receiving side recording circuit 39. The receiving side determination circuit 40 for determining whether the type of oil to be received in 22, 23, and 24 is A, B, or C.

The receiving side judging circuit 40 receives the judgment output signal of the supplying side judging circuit 16 from the radio receiver 35. In the receiving side judging circuit 40, both the judging circuits 16 and 4 are inputted.
It is determined whether or not the respective determination output signals regarding the oil type of 0 match or do not match. Reference numeral 41 denotes an AND circuit, and each AND circuit 41 receives an output signal from each connection detection sensor 33 and the receiving side determination circuit 40. The output signal of each AND circuit 41 is the cutoff valves 36, 37, 38.

Then, when the connection detection sensor 33 confirms the connection of the connection hose 32 to the receiving ports 25, 26, 27, and when the receiving side determination circuit 40 detects both of the determination circuits 16, 40. When the respective judgment output signals match, the reception port 25, in which the connection of the connection hose 32 is confirmed,
The shut-off valves 36, 37, 38 of 26, 27 are kept open, while the shut-off valves 36, 37, 38 are closed when the respective judgment output signals do not coincide with each other, and the shut-off valves 36, 37, 38 are closed from the discharge ports 5, 6, 7 to the inlet 25 , 26 and 27 are prevented from flowing. Reference numeral 42 is an alarm means which is one of the restricting means, and is, for example, an alarm buzzer and a lamp, which are connected to the receiving side determination circuit 40. And the above-mentioned alarm means 4
2 outputs an alarm when the judgment output signals of both judgment circuits 16 and 40 do not match.

In the above embodiment, the supply side determination circuit 16
Then, it is determined whether the oil type of the fuel in the supply tanks 2, 3, 4 to which the discharge valves 8, 9, 10 that have been opened are attached is A, B, C, and the receiving side determination circuit 40 , Oil types of fuel in the receiving tanks 22, 23, 24 to which the receiving ports 25, 26, 27 to which the connecting hoses 32 are connected belong to A, B,
It is determined which one of C.

When the determination output signals of both the determination circuits 16 and 40 match (oil type matches), the shutoff valve 3
6, 37, 38 are kept open, and fuel is allowed to flow from the discharge ports 5, 6, 7 to the receiving ports 25, 26, 27 through the shutoff valves 36, 37, 38.
Fuel is supplied to the receiving tanks 22, 23 and 24.
On the other hand, when the determination output signals of the both determination circuits 16 and 40 do not match (oil type mismatch), the shutoff valves 36, 37 and 38.
Is closed to close the receiving ports 25, 26, 27, and the flow of fuel from the discharge ports 5, 6, 7 to the receiving ports 25, 26, 27 is blocked. Therefore, it is possible to surely prevent the occurrence of oil type confusion in the receiving tanks 22, 23 and 24 due to "misconnection".

Further, as described above, both decision circuits 16,
When the respective judgment output signals of 40 coincide, the alarm means 42
Does not operate, and from the outlets 5, 6, 7 to the inlets 25, 2
Fuel supply to 6, 27 continues. On the other hand, when the determination output signals of the determination circuits 16 and 40 do not match, an alarm is issued from the alarm means 42 and it is known that an oil type error has occurred. Therefore, when oil type confusion occurs, the receiving port 25, 2 is fed from any one of the discharging ports 5, 6, 7.
The flow of the fuel to any of Nos. 6 and 27 is audibly and visually regulated, and it is possible to prevent the occurrence of oil type confusion due to "misconnection" at a slightest stage at the latest.

Further, since both the judgment circuits 16 and 40 are wirelessly connected by the radio transmitter 14 and the radio receiver 35, it is not necessary to connect the judgment circuits 16 and 40 with a wire for delivery, and the disconnection is also caused. No worries. Also, since communication is performed at a very short distance, it is possible to communicate even with weak radio waves.

In the above embodiment, the shutoff valves 36,
Although both 37, 38 and the alarm means 42 are provided, only one of the shutoff valves 36, 37, 38 and the alarm means 42 may be provided. Further, in the above embodiment, three supply tanks and three receiving tanks are provided,
Each tank may have four or more. Furthermore, both of the determination circuits 1
6, 40 may be connected by an electric wire.

[0028]

The effects of the present invention are as follows.

According to the invention of claim 1, the tank truck has a plurality of supply tanks capable of accommodating fuels having different oil types, discharge ports capable of discharging fuel from the respective supply tanks, and respective discharge ports thereof. The gas station was provided with a plurality of receiving tanks capable of accommodating fuels of different oil types, and an inlet allowing each of the receiving tanks to receive fuel. In the fuel delivery device, an open detection sensor that detects the opening operation of each of the discharge valves, a connection detection sensor that detects the connection of the discharge port side to each of the reception ports, and a fuel that is injected into each of the supply tanks. Supply-side recording circuit capable of recording the oil type in advance, receiving-side recording circuit capable of recording the oil type of the fuel to be received in each of the receiving tanks in advance, and the open detection sensor A supply side determination circuit that determines what kind of oil in the supply tank is based on the detection signal and the output signal from the supply side recording circuit, and the detection signal of the connection detection sensor and the output signal from the receiving side recording circuit. When the receiving side determination circuit that determines what kind of oil should be received in the receiving tank and the determination output signals of the both determination circuits do not match, the flow of fuel from the discharge port to the reception port is regulated. There is a regulation means.

Therefore, in the supply side determination circuit, the oil type of the fuel of the supply tank to which the discharge valve that has been opened is attached is determined from the outputs of the open detection sensor and the supply side recording circuit, and in the reception side determination circuit. If the oil type of the fuel of the receiving tank to which the receiving side connected to the outlet side of the supply tank belongs is judged from the output of the connection detection sensor and the receiving side recording circuit, and the judgment output signals of both judgment circuits do not match. The flow of fuel from the discharge port to the reception port is regulated by the regulation means.

Therefore, when the fuel is delivered from any of the plurality of supply tanks capable of accommodating fuels of different oil types to any of the plurality of receiving tanks capable of accommodating fuel of different oil types, Moreover, the occurrence of oil type confusion in the receiving tank due to "misconnection" is prevented.

According to a second aspect of the present invention, the regulating means comprises a shut-off valve that closes the inlet when the determination output signals of the both determination circuits do not match.

Therefore, when the determination output signals of both determination circuits do not match, the shutoff valve closes to close the inlet, and the flow of fuel from the outlet to the inlet is physically blocked. It

Therefore, the occurrence of oil type confusion due to "misconnection" can be prevented more reliably.

According to a third aspect of the present invention, the regulating means is constituted by an alarm means for issuing an alarm when the determination output signals of the both determination circuits do not match.

Therefore, when the determination output signals of the both determination circuits do not match, it is known that an alarm is issued from the alarm means and an oil type error occurs.

Therefore, the occurrence of oil type confusion due to "misconnection" is prevented at a minor stage.

According to a fourth aspect of the present invention, the both determination circuits are wirelessly connected.

Therefore, it is not necessary to connect both of the above-mentioned determination circuits with an electric wire for delivery, and there is no fear of disconnection. Also, since communication is performed at a very short distance, it is possible to communicate even with weak radio waves.

Therefore, in the work at the time of delivery, no extra work is added other than the main work of connecting the discharge port side of the supply tank to the receiving port of the receiving tank.
Good workability.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram.

FIG. 2 is an electric block diagram showing a configuration of a control unit of the tank truck.

FIG. 3 is an electric block diagram showing a configuration of a control unit of a gas station.

[Explanation of symbols]

 1 Tank truck 2-4 Supply tank 5-7 Discharge port 8-10 Discharge valve 12 Open detection sensor 14 Wireless transmitter 15 Supply side recording circuit 16 Supply side determination circuit 21 Gas station 22-24 Receiving tank 25-27 Receiving port 32 Connection hose 33 Connection detection sensor 35 Wireless receiver 36 to 38 Shut-off valve (restriction means) 39 Receiving side recording circuit 40 Receiving side determination circuit 42 Alarm means (restriction means)

Claims (4)

[Claims] 1. A tank truck has a plurality of supply tanks capable of accommodating fuels having different oil types, discharge ports capable of discharging fuel from these supply tanks, and opening and closing these discharge ports, respectively. In a fuel delivery device including a discharge valve, the gas filling station has a plurality of receiving tanks capable of accommodating fuels of different oil types, and an inlet for allowing each of the receiving tanks to receive fuel, An open detection sensor that detects the opening operation of each discharge valve, a connection detection sensor that detects the connection of the discharge side to each reception port, and an oil type of the fuel injected into each supply tank are recorded in advance. A supply-side recording circuit that enables the above, a reception-side recording circuit that enables the oil type of the fuel to be received in each of the above-mentioned receiving tanks to be recorded in advance, and a detection signal from the above-mentioned open detection sensor The receiving tank is determined by the supply side determination circuit that determines what kind of oil is in the supply tank based on the output signal from the side recording circuit, and the detection signal of the connection detection sensor and the output signal from the receiving side recording circuit. The receiving side determination circuit for determining what kind of oil should be received, and the control means for controlling the flow of fuel from the discharge port to the reception port when the determination output signals of both the determination circuits do not match. Oil type confusion prevention device in the provided fuel delivery device. 2. The oil type confusion prevention device in a fuel delivery device according to claim 1, wherein the restriction means is constituted by a shutoff valve that closes the receiving port when the determination output signals of the both determination circuits do not match. 3. The oil type confusion prevention device in a fuel delivery system according to claim 1, wherein said restriction means is constituted by an alarm means for issuing an alarm when the respective judgment output signals of said both judgment circuits do not match. 4. The oil type confusion prevention device in the fuel delivery device according to claim 1, wherein the both determination circuits are wirelessly connected.