JP2000128299A - Apparatus for preventing erroneous unloading of oil and overflow - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent oil from being unloaded to an oil reservoir tank which has not been scheduled, which would result in a condition that a scheduled oil reservoir tank is empty and oil feeding cannot be done from a meter connected to this tank. SOLUTION: The apparatus for preventing erroneous unloading of oil and overflow comprises an oil amount managing device 8 having a storage part for storing a capacity and an oil type for each of oil reservoir tanks 2A, 2B, 2C and an ordered amount input from a keyboard 9 and a control part for outputting order data including a tank number, the oil type and ordered amount, and an unload controller 19 on a side or a lorry 12 having a storage part for storing the ordered data which has been input and a control part for controlling unload based on cargo data, the order data and the number of the tank to be unloaded.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for unloading erroneous oil species and preventing overflow when unloading an oil storage tank of a gas station.

[0002]

2. Description of the Related Art Applicants have proposed a device for unloading wrong type of oil and preventing overflow when unloading an oil storage tank of a gas station, as Japanese Patent Application Laid-Open No. Hei 1-2226592. This is effective, but when there are a plurality of oil storage tanks of the same oil type, unloading can be performed to any of the oil storage tanks.

[0003]

SUMMARY OF THE INVENTION Accordingly, the present invention prevents unloading to an unscheduled oil storage tank, unloads to an unscheduled oil storage tank, and empties the scheduled oil storage tank. It is an object of the present invention to provide an apparatus for unloading and overflowing a wrong oil type, which prevents the metering device connected to the oil storage tank from being unable to supply oil.

[0004]

In order to solve the above-mentioned problems, an apparatus for unloading and overflowing wrong oil type according to the present invention stores the capacity and oil type of each oil storage tank, and is provided in each oil storage tank. The oil amount calculated from the liquid level signal of the oil level gauge,
And a storage unit that stores an order amount input from a keyboard, and a control unit that outputs order data including a tank number, an oil type, and an order amount, and an oil amount management device on a gas station side,
Store cargo data including oil type and oil amount for each hatch,
It comprises a storage unit for storing the input order data and a control unit for unloading on the lorry side, which has a control unit for controlling the unloading based on the cargo data, the order data and the tank number to be unloaded. As described above, the control of unloading is performed based on the order data, so that the unloading is always unloaded to the designated oil storage tank.

The control unit of the oil amount management device calculates an empty capacity from the capacity and the liquid amount of each oil storage tank, and outputs a full signal when the empty capacity becomes zero. Since unloading is stopped in response to a full signal, oil is put into the oil storage tank between the time the order is placed and the time of unloading, and overflow can be prevented even if the oil amount in the oil storage tank increases. Become like

[0006]

Embodiments of the present invention will be described below. As shown in FIGS. 1 and 2, a fueling station 1 that supplies fuel oil to an automobile has a plurality of oil storage tanks 2 </ b> A, 2 </ b> B underground.
2C ... (hereinafter collectively referred to by reference numeral 2) is embedded. The oil storage tank 2 is provided with an oil supply pipe 3, an oil supply pipe 4, and an oil level gauge 5. The lubrication pipe 3 is led out to the ground, and the lubrication pipe 3 is provided with a tank card 6 indicating a tank number and an oil type. The refueling pipe 4 is connected to a weighing machine (not shown), and is supplied from the weighing machine to the vehicle. The liquid level signal of the oil level gauge 5 is indicated by a signal line 7.
To the oil amount management device 8 via the.

The storage unit 8a of the oil amount management device 8 stores the capacity and oil type of each tank 2 as shown in FIG. 3, the current oil amount and the empty capacity, and the like. The ordered quantity is stored. Then, the control unit 8b stores the current oil amount calculated from the liquid level signal of the oil level gauge 5 in the storage unit 8a and displays it on the display 10, and calculates the current oil amount from the capacity of the oil storage tank 2 and the current oil amount. The empty capacity is stored in the storage unit 8a, and the order amount input by the keyboard 9 is stored in the storage unit 8a. Further, the control unit 8b
As shown in FIG. 4, the order data including the tank number, the oil type, and the order quantity stored in the storage unit 8a is
And outputs a full signal when the empty capacity of the oil storage tank 2 becomes zero. Then, the inputted unloading data is managed as purchase data.

The tank 13 of the lorry 12 has a plurality of hatches 1
4A, 14B, and 14C (hereinafter, collectively referred to by reference numeral 14). And the bottom valve 1 of the hatch 14
5 is connected to the discharge pipe 16 so that the discharge pipe 16 and the oil storage tank 2
The lubrication pipe 3 is connected to the lubrication hose 17 for unloading. A card reader 18 is provided in the lubrication hose 17, and when the tank card 6 provided in the lubrication pipe 3 is inserted, card data including the tank number and the oil type is output to the unloading control device 19. It has become.

The storage unit 19a of the unloading control device 19 of the lorry 12 stores loading data such as oil type and oil amount for each hatch 14 as shown in FIG. The order data (FIG. 4) input via the line 20 is stored. The control unit 19b includes the storage unit 1
Display the cargo data (FIG. 5) stored in 9a
1 and determines whether or not to unload the vehicle based on the tank data, order data (FIG. 4), and cargo data (FIG. 5) input from the card reader 18.

When the start signal is received from the keyboard 22, the bottom valve 15 is opened, when the end signal is received, the bottom valve 15 is closed. When the completion signal is received, the unloading data is output via the signal line 20. ing. Further, when a full signal is received via the signal line 20 during unloading, the bottom valve 15 is closed.

Next, the operation will be described with reference to the flow charts of FIGS. As shown in FIG. 3, the oil storage tank 2A of the gas station 1 has a capacity of 5 KL, an oil type of regular gasoline, an inventory of 3.3 KL, an empty capacity of 1.7 KL, and an oil storage tank 2A.
B is ... In order to place an order at the oil depot, first operate the keyboard 9 of the oil amount management device 8 to display the data for each tank (FIG. 3) stored in the storage unit 8a on the display 10, and based on this display, The order quantity is input from the keyboard 9. For example, 2 KL of regular gasoline is stored in the oil storage tank 2B, and 2 KL of high-octane gasoline is stored in the oil storage tank 2C.
Input and store in the storage unit 8a (FIG. 3), and place an order at the oil depot.

At the oil depot, the cargo is loaded on the lorry 12 based on the order of the gas station 1, and the loading data (FIG. 5) is stored in the storage unit 19a of the unloading controller 19 of the lorry 12.

The operator of the lorry 12 who has unloaded to the gas station 1 connects the signal line 20 of the unloading management device 19 to the connector 11 of the oil amount management device 8 of the gas station 1 and the unloading management device 19 Press the unload button on the keyboard 22 of FIG.
1) A transmission signal is output (ST2 in FIG. 6). The oil amount management device 8 that has received the transmission signal (ST1 in FIG. 7) outputs the order data (FIG. 4) (ST2 in FIG. 7). Then, the unloading management device 19 receiving the order data (FIG. 6)
ST3), the order data is stored in the storage unit 19a, and the order data is displayed on the display 21 together with the loading data (FIG. 6).
ST4).

The driver of the lorry 12 connects the lubrication hose 17 connected to the discharge pipe 16 to the lubrication pipe 3 based on the display on the display 21 and inserts the tank card 6 of the lubrication pipe 3 into the card reader 18. If the card data input from the card reader 18 is the tank data of the lubrication pipe 3 of the ordered oil storage tank 2 (ST5 in FIG. 6), the display 21 indicates that the unloading is possible (ST6 in FIG. 6). Then, when the valve opening button of the keyboard 22 is pressed (ST7 in FIG. 6), the bottom valve 15 is opened (ST8 in FIG. 6), and the oil in the hatch 14 is discharged from the bottom valve 15, the discharge pipe 16, the lubrication hose 17, and the lubrication pipe 3 To the oil storage tank 2 via the. When the unloading of the hatch 14 is completed, the user presses the valve closing button of the keyboard 22 (ST 6 in FIG. 6).
9), the bottom valve 15 closes (ST10 in FIG. 6). And
The tank card 6 is removed from the card reader 18, the oiling hose 17 is removed, and the unloading of the hatch 14 is completed.

To unload the next hatch 14, the lubrication hose 17 is connected to another lubrication pipe 3 and the tank card 6 of the lubrication pipe 3 is inserted into the card reader 18 in the same manner as described above. 6 ST11), by pressing the valve opening button of the keyboard 22 (FIG. 6, ST6, ST7...). When all unloading is completed and the end button of the keyboard 22 is pressed (ST12 in FIG. 6), the control unit 19b outputs unloading data (ST13 in FIG. 6). The control unit 8b of the oil amount management device 8 having received the unloading data (ST3 in FIG. 7) manages the unloading data as purchase data (ST in FIG. 7).
4).

When the oil storage tank 2 is full during unloading and the space capacity becomes zero (ST5 in FIG. 7), the control unit 8b outputs a full signal (ST6 in FIG. 7). The control unit 19b of the unloading control device 19 that has received this full signal
(ST14 in FIG. 6), close the bottom valve 14 (ST14 in FIG. 6).
15) Prevent overflow. Then, when the end button of the keyboard 22 is pressed after noticing that the tank is full (FIG. 6)
ST16), Steps ST11 and subsequent steps are executed.

Also, the tank data input from the card reader 18 must be the ordered oil storage tank 2 (FIG. 6 S
T17), an erroneous connection is notified (ST18 in FIG. 6). In this case, unloading is performed by reconnecting to the correct lubrication pipe 3 of the oil storage tank 2.

[0018]

As described above, the erroneous oil type unloading and overflow prevention device of the present invention stores the capacity and oil type of each oil storage tank, and outputs the level signal of the oil level gauge provided in each oil storage tank. Oil amount management on the gas station side having a storage unit for storing the oil amount calculated from the above and the order amount inputted from the keyboard, and a control unit for outputting order data including the tank number, the oil type and the order amount An apparatus, a storage unit that stores loading data including an oil type and an oil amount for each hatch, and stores input order data, and controls unloading based on the loading data, the order data, and the tank number to be unloaded. And an unloading control device on the lorry side having a control unit. As described above, the control of unloading is performed based on the order data, so that the unloading is always performed to the designated oil storage tank, and the unloading is performed to the unexpected oil storage tank, and the scheduled oil storage tank is unloaded. Is emptied, and it becomes possible to prevent the metering device connected to this oil storage tank from refueling.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an apparatus for unloading and overflowing wrong oil species according to the present invention.

FIG. 2 is a block diagram of the wrong oil type unloading and overflow prevention device of the present invention.

FIG. 3 is an explanatory diagram of data for each oil storage tank stored in a storage unit of the oil amount management device.

FIG. 4 is an explanatory diagram of order data output from the oil amount management device.

FIG. 5 is an explanatory diagram of cargo data stored in a storage unit of the unloading control device.

FIG. 6 is a flowchart showing the operation of the unloading control device.

FIG. 7 is a flowchart showing the operation of the oil amount management device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 gas station 2 oil storage tank 3 oil supply pipe 4 oil supply pipe 5 oil level gauge 6 tank card 7 signal line 8 oil quantity management device 8 a storage unit 8 b control unit 9 keyboard 10 display 11 connector 12 lorry 13 tank 14 hatch 15 bottom valve 16 Discharge tube 17 Lubrication hose 18 Card reader 19 Unloading control device 19a Storage unit 19b Control unit 20 Signal line 21 Display 22 Keyboard

Claims (2)

[Claims] Claims: 1. The capacity and oil type of each oil storage tank are stored,
A storage unit for storing an oil amount calculated from a liquid level signal of an oil level gauge provided in each oil storage tank, and an order amount input from a keyboard, and order data including a tank number, an oil type, and an order amount. An oil amount management device on the gas station side having a control unit for outputting, and loading data including an oil type and an oil amount for each hatch,
An unloading control device on the lorry side having a storage unit for storing the input order data, and a control unit for controlling unloading based on the load data, the order data, and the tank number to be unloaded. A wrong oil type unloading and overflow prevention device. 2. The control unit of the oil amount management device calculates an empty capacity from a capacity and a liquid amount of each oil storage tank, and outputs a full signal when the empty capacity becomes zero. 2. The unloading and overflow preventing device according to claim 1, wherein the unloading is stopped in response to a full signal.