JPH0255319B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a device for preventing oil from being mixed during oil loading and unloading work of a tank truck.

(B) Conventional technology Conventionally, tank trucks have been equipped with multiple oil chambers, and in order to avoid mixing different types of oil, computers have been installed at oil depots to manage incoming and outgoing oil. By inputting the type and amount of oil to be loaded into the tanker truck going to the gas station into the same computer, this data is transmitted to the loading gate.
The type and amount of oil according to the data is loaded into the designated oil chamber of the tanker truck.

On the other hand, at filling stations that receive oil from oil depots, the oil loaded on tank trucks is unloaded and stored in underground tanks; There is no equipment in place to prevent accidents, and prevention of oil mixture accidents relies on the memory, vision, judgment, etc. of workers, and at most auxiliary means such as tally systems are used. .

(c) Problems to be Solved by the Invention As mentioned above, at oil depots, computers control the type and amount of oil loaded into tanker trucks, and even though oil-mixing accidents are thoroughly prevented. Regardless, at gas stations, as mentioned above, prevention of oil-mixing accidents relies on the memory, vision, judgment, etc. of workers, so there is a drawback that there is a high possibility of oil-mixing accidents occurring.

(d) Means for Solving the Problems The present invention includes fuel supply pipes each connected to a plurality of underground tanks buried in a gas station, and the same number of confirmation switches, confirmation lamps, and sounds as the number of underground tanks installed in the structure of the gas station. A control panel equipped with a notification device and a magnetic card reader is provided, and the control panel and each fuel supply pipe can be connected via wiring with resistors having different resistance values installed in the middle. At the same time, a ground terminal is provided on the operation panel, and the ground terminal is connected to the base end of the fuel supply hose of the tanker truck via a ground wire, and the tip of the fuel supply hose is connected to one end of the fuel supply pipe. By connecting each underground tank to the operation panel, an electric circuit can be formed between each underground tank and the operation panel, with the above-mentioned resistors corresponding to each underground tank being interposed. When the confirmation switch is turned on with the confirmation switch inserted, the confirmation lamp and the sound of the notification device will be activated only when the fuel supply pipe of the underground tank corresponding to the confirmation switch is connected to the fuel supply hose of the tank truck. The system notifies you that the connection between the refueling hose and refueling pipe is the correct type of oil, and if the connection between the refueling pipe and refueling hose does not correspond to the connection, the confirmation lamp and the sound of the notification device will notify you. Accordingly, it is an object of the present invention to provide a device for preventing oil mixture during oil loading and unloading work of a tank truck, which is characterized in that it is configured to notify of incorrect connection.

(E) Functions and Effects In the present invention, when loading and unloading oil from a tank truck, if a magnetic card is inserted into a reader installed at a filling station, the procedure for loading and unloading oil can be read by voice from the notification device. According to the instructions, connect the ground for static electricity removal to the operation panel, and connect the tank truck's refueling hose to the underground tank's refueling pipe to ensure the correct refueling pipe and refueling hose. can be concatenated.

Furthermore, by pressing the confirmation switch according to the voice instructions, you can check the correctness of the connection between the fuel supply pipe and the fuel supply hose using the confirmation lamp and voice, completely preventing oil mixture due to incorrect connections. can do.

(f) Embodiment To explain the embodiment of the present invention in detail based on the drawings, Fig. 1 shows the situation of oil loading and unloading work at a filling station A, B shows a tank truck, 1,
1' is an underground tank, 2 is a structure, 3 is a refueling pipe 3 communicating with the underground tank 1, 4 is a refueling hose for supplying oil from the tank truck B to the underground tank 1, 5
is a connection part connected to the upper end of the fuel supply pipe 3 to connect the fuel supply hose 4, and 6 is a ground wire for removing static charge attached to the tank truck B.
The ground wire 6 is connected to a ground terminal 7 provided on the structure 2.

Reference numeral 8 denotes a ground for grounding an electric circuit provided inside the operation panel 9.

The operation panel 9 is provided with a notification device 13,
The broadcast notification device 13 has the same number of confirmation switches 11 as the underground tanks 1, and each confirmation switch 1
1 and each underground tank 1 are connected by wiring 10 and wiring 12 with resistors R having different resistance values interposed therebetween.

FIG. 2 shows the notification device 13, with the confirmation lamp 13-1 on the top and the confirmation switch 1 on the bottom.
1. An oil level indicator C is installed on the side to display the amount of oil in the underground tank 1.

FIG. 3 shows an outline of the electric circuit configuration around the operation panel 9, and each member of the operation panel 9 is operated by electric power supplied from a power source n.

In addition, the resistor R in the middle of each wiring 10 has a different resistance value corresponding to each underground tank 1, so that the same wiring 10, the connection part 5, the refueling hose 4,
When a constant voltage is applied to the electric circuit consisting of the body of tank truck B, the ground wire 6, the ground terminal 7, the wiring 12, and the alarm device 13, different currents flow corresponding to each underground tank 1, and a constant When a current of It is possible to check whether the connection between the fuel supply pipe 3 and the fuel supply hose 4 is correct or incorrect by lighting the confirmation lamp 13-1 corresponding to the fuel supply pipe 3 and comparing it with the confirmation switch 11 turned on by the operator.

Further, the notification device 13 has a built-in voice instruction device such as a computer and a speaker (not shown), and based on the data of the magnetic card read by a magnetic card reader connected to the computer in the operation panel 9, The same voice instruction device provides step-by-step instructions to workers on the steps for loading and unloading oil.

The embodiment of the present invention is configured as described above, and when tank truck B loaded with various types of oil at an oil depot arrives at gas station A, procedures for unloading the oil are first carried out. It will be done.

In addition to handing over the loading slip, this procedure is performed by inserting a magnetic card with data written into the reader at the oil depot, and based on the data, the notification device 13
Instructions for oil loading and unloading work are sequentially given by voice.

That is, as shown in the flowchart of FIG. 4, when the tank truck B arrives at the gas station A 50, the person in charge at the gas station A checks the slip 51 and inserts the magnetic card into the reader 52.

When a magnetic card is inserted into the reader, the data written on the magnetic card at the oil depot is read.
3. Input into computer.

If you turn on confirmation switch 11 in this state, 5
4. The notification device 13 outputs a voice instruction to "connect the ground wire 6 to the ground terminal 7" 55, and when the worker follows this and connects the ground wire 6 to the ground terminal 7, 56 the above connection is completed. Judging the condition 5
7. If there is a poor connection, go back to step 58 and step 55 and repeat the above voice instruction.

Therefore, if the ground connection is poor, it is not possible to proceed to the next step, and the safety of the oil loading and unloading work is ensured.

If the ground connection status is good 59, the notification device 13 sends a message to the effect that ``Select the confirmation switch 11 instructed by the voice instruction device from among the plurality of confirmation switches 11 installed in the notification device 13 and turn it on''. A voice instruction is output 60, and when the worker turns on the confirmation switch 11 in accordance with this 61, the confirmation switch 11 determines whether the underground tank 1 to be loaded or unloaded corresponds to the one specified by the voice instruction device. 62. If there is a mistake, go back to step 63 and 60 and repeat the above voice instruction.

If the turned ON confirmation switch 11 matches the underground tank 1 scheduled to be loaded or unloaded (64), the notification device 13 will issue a warning message saying, “At the connecting part 5 of the fuel supply pipe 3 of the underground tank 1,
Connect refueling hose 4 of tank truck B.
A voice instruction to this effect is output 65, and when the operator follows this and connects the refueling hose 4 to the connecting part 5, 65
6. The state of the connection is determined 67, and if the connection is defective 68, the notification device 13 outputs a voice stating that the connection is incorrect, and the process returns to step 66.

Therefore, if the connection between the oil supply pipe 3 and the oil supply hose 4 is incorrect, it is not possible to proceed to the next step, and mixing of different types of oil due to incorrect connection of the oil supply pipe 3 and the oil supply hose 4 is reliably prevented. Ru.

If the connection between the refueling pipe 3 and the refueling hose 4 is correct, 70, the notification device 13 will tell you ``Please check the confirmation switch 1 first''.
71. A voice instruction to the effect of "Start unloading the oil to the underground tank 1 selected in step 1" is output 71.

Then, when the oil loading and unloading work is completed and the confirmation switch 11 is turned on again (73), it is determined whether or not all the loading and unloading schedules read from the magnetic card have been completed (74). 75,60
Returning to step 1, the worker is prompted to select the next underground tank 1 to be loaded or unloaded using a voice instruction from the notification device 13.

If all the loading and unloading schedules have been completed 76, the notification device 13 outputs a voice stating that "all loading and unloading schedules have been completed" 77, and the series of oil loading and unloading operations is completed 78.

As mentioned above, when loading and unloading oil, the confirmation switch 11 and the confirmation lamp 13-1 are compared, and
The correct connection between the oil supply pipe 3 and the oil supply hose 4 is achieved by the voice instruction of the work procedure and the connection check based on the voice work instruction flow, and the mixing of different oil types is reliably prevented.

[Brief explanation of drawings]

Figure 1 is an explanatory diagram showing the status of oil loading and unloading work at a gas station, Figure 2 is a front view of the notification device, Figure 3 is a block diagram showing the schematic configuration of the electric circuit around the operation panel, and Figure 4. is a flowchart showing the voice instruction flow. A: Gas station, B: Tank truck, R: Resistor, 1: Underground tank, 2: Structure, 3: Fuel pipe, 4: Fuel hose, 5: Connection, 6: Ground wire, 9: Operation panel, 10 : Wiring, 11: Confirmation switch, 13: Notification device, 13-1: Confirmation lamp.

Claims (1)

[Claims] 1 Fuel supply pipes 3 each connected to a plurality of underground tanks 1 buried in gas station A, and gas station A
An operation panel 9 equipped with the same number of confirmation switches 11, confirmation lamps 13-1, an audio notification device 13, and a magnetic card reader as the underground tanks 1 installed in the structure 2 is provided, and the operation panel 9 and each Oil supply pipe 3
and a resistor R having different resistance values, respectively.
In addition, a grounding terminal 7 is provided on the operation panel 9, and the grounding terminal 7 and the base end of the fueling hose 4 of the tank truck B are connected via the grounding wire 6. By connecting the tip of the refueling hose 4 to the connecting portion 5 provided at one end of the refueling pipe 3, a connection is made to each underground tank 1 between each underground tank 1 and the operation panel 9. The configuration is such that an electric circuit can be formed with the corresponding resistor R interposed therebetween, and the confirmation switch 11 is turned on when the magnetic card is inserted into the magnetic card reader.
When the fuel supply pipe 3 of the underground tank 1 corresponding to the confirmation switch 11 and the tank truck B
Only when the connection with the refueling hose 4 is established, the confirmation lamp 13-1 and the sound of the notification device 13 notify that the connection between the refueling hose 4 and the refueling pipe 3 is the correct type of oil connection. , If the connection between the confirmation switch 11, the fuel supply pipe 3, and the fuel supply hose 4 does not correspond, the confirmation lamp 13-
1. A device for preventing oil mixture during oil loading and unloading work of a tank truck, characterized in that it is configured to notify incorrect connection by sound from the notification device 1 and the notification device 13.