JP2952869B2 - Oil mixing and overflow prevention device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art When an oil mixture occurs during unloading, it is necessary to pump out the oil mixture in the oil storage tank and re-refine the oil. In addition, there is a danger when overflow occurs, and there is a particular danger when it flows into the sewer.

[0003]

On the other hand, the control device mounted on the tank lorry proposed by the present applicant in Japanese Patent Application Laid-Open No. Hei 1-2226592 needs to connect the control device in the office to the on-vehicle control device. Yes, inconvenient.

Further, a device has been proposed in which a liquid level measuring section of an oil storage tank and a control device in an office are wirelessly connected. However, it is necessary to connect the control device and a vehicle-mounted control device.
Inconvenient.

An object of the present invention is to provide an oil-mixing and overflow prevention device which does not require a connection to the outside of a vehicle-mounted control device.

[0006]

According to the oil mixing and overflow prevention device of the present invention, a plurality of oil storage tanks are provided at a gas station, and a tank number and a liquid level are transmitted to each of these oil storage tanks at regular intervals. A wireless level gauge is provided, and on the other hand, a plurality of hatches on the lorry, a bottom valve provided on each hatch, a main valve connected to each bottom valve, and an alarm are provided. A fueling station card storing a seed, a capacity, a liquid amount calculation formula, and a frequency of a liquid level gauge, and a loading card storing an oil type and an oil amount loaded on each hatch; and Receiving means for receiving a signal of the wireless level gauge, a card reader for reading data stored in the gas station card and the cargo card, and a signal from the bottom valve open sensor provided in the bottom valve to receive the signal. In-vehicle control that outputs operation signals to valves and alarms Comprising a device, a signal of the vehicle control device and the liquid amount calculating means for calculating a fluid volume on the basis of the data signals and the refueling Shoyo card wireless type liquid level gauge, wireless liquid level gauge,
Oil type correctness determination means for determining the correctness of the oil type based on the data of the loading card and the signal of the bottom valve open sensor, and outputting an operation signal to the main valve and the alarm when the oil type is determined to be erroneous; An overflow judging means for judging an overflow based on the signal of the liquid level gauge and the data of the loading card, and outputting an operation signal to the main valve and the alarm when judging the overflow is provided.

[0007]

[0008]

[0009]

In the oil mixing and overflow prevention device configured as described above, the in-vehicle control device does not need to be connected to an external liquid level gauge or a control device in the office, which is convenient.

Further, the on-vehicle control device determines the type of oil based on the signal from the wireless level gauge and the data of the gas station card and the cargo card, reports the case of different types, closes the main valve, and When an overflow is predicted in advance, the notifying means is operated, and when the predetermined amount of lubrication is reached, the notifying means is operated to notify and close the main valve.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, oil storage tanks T1 to T4 (only the oil storage tank T1 is shown in the figure) are buried underground at a gas station premises A. For example, the tank T1 is filled with regular gasoline, High-octane gasoline, tank T3 stores light oil, and tank T4 stores kerosene. For example, a wireless liquid level gauge 1 is provided in the tank T1, and a certain time (for example, 1
Every 0 seconds), the tank number and liquid level are transmitted. The tank T1 is connected to a lubrication port 3 on the ground by a lubrication pipe 2. The tanks T2 and T3 are configured similarly to the tank T1.

On the other hand, the tank truck R has hatches H1 to H1.
H3 is provided, for example, regular gasoline is provided in hatch H1, high-octane gasoline is provided in hatch H2, and hatch H is provided.
3 is loaded with light oil.

The hatches H1 to H3 have bottom valves V1 to V3, valve handles 4a to 4c for opening and closing the bottom valves V1 to V3, respectively, and bottom valves V1 to 4c by the valve handles 4a to 4c.
Bottom valve open sensors 5a to 5c for detecting the opening and closing of V3 to V3 are provided. Further, the outlet sides of the bottom valves V1 to V3 are connected to a lubrication hose 7 via a main valve 6 connected to the vehicle-mounted control device 10 as described later.
A coupling 8 connected to the lubrication port 3 is provided. The on-board controller 1 is located in the cab of the Rory R.
0 is provided, and a liquid level gauge control unit 30 is provided in the office B.

In FIG. 2, the on-vehicle control device 10 is connected to the bottom valve open sensors 5a to 5c and the main valve 6 via a signal line 35.
It is connected to the. The control device 10 includes a cargo IC
The reader / writer 11 of the card C1 (FIG. 3), the reader / writer 12 of the gas station IC card C2 (FIG. 4), the numeric keypad 13, the display 14, the annunciator 15, and the printer 1
6 are provided, and the antenna 17 is connected.

In FIG. 3, the loading IC card C1 stores data of a lorry number a, a gas station name b, a hatch number c, an oil type d and an amount e, that is, loading data, for example, as shown in FIG. And a storage location of the unloaded mark f.

In FIG. 4, a gas station IC card C2 has a gas station name b, a tank number c, an oil type d, a capacity g, a liquid level gauge frequency h, and a formula for calculating the liquid amount from the liquid level of each tank. j, that is, tank data is stored, for example, as shown. Note that both the IC cards C1 and C2 can be a single card.

Next, the mode of control will be described mainly with reference to FIG. The operator of Rori R receives the two IC cards C1 and C2 by loading them at the oil depot and sets them in the reader / writers 11 and 12 of the on-vehicle control device 10 at the gas station. Then, each tank T is read from the reader / writer 12.
The frequencies of 1 to T4 are set in the receiving means 23, and the liquid amount calculating means 24 receives the tank data, that is, the calculation formula j of each tank from the reader / writer 12, and
Based on the tank number and the liquid level signal from, the liquid amount is calculated for all four underground tanks T1 to T4, and the liquid amount in each tank is sent to the increased liquid amount determining means 25. After setting the IC card, the operator changes the coupling 8 to the first tank T1.
Of the bottom valve V1 by turning the valve handle 4a.
When the unloading is started by opening the base valve 6 and the unloading is started, the increased liquid amount judging means 25 increases the liquid amount of the first tank T1 out of the liquid amount sent from the liquid amount calculating means 24. The reader / writer 12 and the liquid amount calculating means 2
A signal indicating that the first tank T1 is being lubricated is output to 4.

Upon receiving this signal, the reader / writer 12
Based on the data of the first tank stored in the C card C2, the oil type signal of the regular gasoline is determined by the oil type correctness determination means 22.
And outputs a 10 KL capacity signal to the overflow determination means 27 and the overflow prediction determination means 26. Further, the liquid amount calculating means 24 receiving the signal indicating that the first tank T1 is being lubricated sends the current liquid amount of the tank T1 to the overflow prediction judging means 26 and the overflow judging means 27 every moment.

On the other hand, by turning the valve handle 4a, a signal from the bottom valve open sensor 5a is transmitted to the valve open hatch determining means 21, and a signal that the bottom valve V1 of the hatch H1 is opened is transmitted from the means 21 to the reader / writer 11. Output to Upon receiving this signal, the reader / writer 11 outputs a regular gasoline oil type signal to the oil type validity judging means 22 based on the data of the hatch H1 stored in the IC card C1, and outputs the 2KL capacity signal to the overflow prediction judging means. 26. The oil type correct / incorrect determination means 22 includes an oil type of the hatch H1 from the reader / writer 11 and a first tank T from the reader / writer 12.
The oil type is compared with the first oil type to determine whether the oil type is correct. That is, in this case, it is determined that both are regular gasoline and the oil type is correct. If the oil type is incorrect, the main valve 6 is closed and the alarm 15 is operated to notify the operator. Further, the overflow prediction judging means 26 calculates the current liquid amount of the first tank T1 from the liquid amount calculating means 24,
Based on the capacity of the first tank from the writer 12 and the amount of lubrication from the hatch H1 from the reader / writer 11, whether the amount of lubrication in the space of the first tank T1 is not large, that is, whether an overflow is predicted. Judge. When it is determined that the overflow is predicted, the alarm 15 is activated to notify the operator. The overflow judging circuit 27 closes the main valve 6 based on the capacity of the first tank T1 from the reader / writer 12 and the liquid amount from the liquid amount calculating means 24 when the liquid amount immediately before the overflow is reached. Then, the alarm 15 is operated to notify the operator.

[0021]

As described above, according to the present invention, the following excellent effects can be obtained. (A) A wireless liquid level gauge that transmits the tank number and liquid level at regular intervals is provided, so that even if the liquid levels of multiple tanks are rationally received, the wiring work is not required and the work efficiency is improved. I do. (B) It is possible to carry out refueling work correctly by using the loading card and the filling station card, without mistake in the oil type.
The work is easy because of overflow.

[0022]

[Brief description of the drawings]

FIG. 1 is a side view of a tank lorry and a gas station showing one embodiment of the present invention.

FIG. 2 is a front view showing the in-vehicle control device.

FIG. 3 is a format diagram of a loading IC card.

FIG. 4 is a format diagram of a gas station IC card.

FIG. 5 is a control block diagram.

[Explanation of symbols]

 A: Gas station B: Office C1: Cargo IC card C2: Gas station IC card H1 to H3: Hatch R: Tank lorry T1 to T4: Oil storage tank V1 V3 Bottom valve 1 Wireless level gauge 2 Lubrication pipe 3 Lubrication port 4a-4c Valve handle 5a-5c Bottom valve open sensor 6 Element Valve 7 ... Lubricating hose 8 ... Coupling 10 ... In-vehicle controller 11 ... Reader / writer 12 ... Reader / writer 13 ... Ten keypad 14 ... Display 15 ... Notification Device 16 Printer 17 Antenna 20 Controller 21 Valve open hatch determination means 22 Oil type correctness determination means 23 Receiving means 24 Liquid amount determination means 25 ... Increased liquid amount determination means 26 27 ... overflow determining means 30 ... liquid level indicator control unit 35 ... signal line

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B67D 5/00-5/70 B60S 5/02

Claims (1)

(57) [Claims] Claims: 1. A plurality of oil storage tanks are provided at a gas station, and a wireless liquid level gauge for transmitting a tank number and a liquid level at regular intervals is provided in each of the oil storage tanks. A bottom valve provided on each hatch, a main valve connected to each bottom valve, and an annunciator are provided.Furthermore, the oil type, capacity, liquid amount calculation formula of each tank, and the frequency of the level gauge are determined. A storage station card, a loading card storing an oil type and an amount of oil loaded on each hatch, and receiving means for receiving a signal of each of the wireless level gauges, and the filling station card And a card reader that reads data stored in the cargo card and a vehicle-mounted control device that receives a signal from a bottom valve open sensor provided in the bottom valve and outputs an operation signal to the main valve and an alarm. The onboard controller is a signal of the wireless level gauge and a gas station. A liquid amount calculating means for calculating the liquid amount based on the data of the card; and determining whether the oil type is correct based on the signal of the wireless liquid level gauge, the data of the loading card, and the signal of the bottom valve open sensor. Means for judging whether the oil type is correct or not, which outputs an operation signal to the base valve and the annunciator when it is determined that the overflow has occurred, and determining the overflow based on the signal of the wireless level gauge and the data of the loading card. An oil-mixing and overflow prevention device, comprising: overflow determination means for outputting an operation signal to a valve and an alarm.