JPH0597195A - Preventing device of mixing of oil - Google Patents

Abstract

(57) [Summary] [Purpose] Treats both top-loading and bottom-loading tank lorries. A first sensor connected to a first identification piece for detecting a discharge pipe connection of a top and bottom loading tank lorry, a second sensor connected to a second identification piece for detecting a bottom valve opening, and an IC card. A control device that controls the oil injection by determining the oil type of the oil storage tank and the hatch based on the above data.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil mixing prevention device when a tank truck unloads gasoline, light oil or the like from an oil storage tank of a gas station.

[0002]

2. Description of the Related Art Various devices have been proposed (for example, Japanese Patent Laid-Open No. 2-72094).

[0003]

On the other hand, as a method for loading the tank truck at the oil tank, there are a top loading method performed from the upper opening of the hatch and a bottom loading method performed from the bottom of the hatch. The top-loading tank lorry and the bottom-loading tank lorry differ in how the hatches and discharge ports correspond, and the same oil mixing prevention device could not handle it.

It is an object of the present invention to provide an oil mixing prevention device capable of coping with both top loading tank lorries and bottom loading tank lorries.

[0005]

According to the present invention, a first sensor connected to a first identification piece for detecting a discharge pipe connection of a top-loading tank lorry and a bottom-loading tank lorry, and the top-loading tank lorry The second sensor connected to the second identification piece for detecting the bottom valve opening, the model code and the load data stored in the IC card for each tank lorry, and the oil type data of the oil storage tank are used to hatch the oil storage tank and the tank lorry. A control device is provided to control the lubrication by determining the type of oil.

[0006]

Preferred Embodiments It is preferable to provide an oil injection valve on the oil injection pipe of the oil storage tank and connect it to the control device. Further, it is preferable that the first sensor is configured to be connected to the control device via an oil supply hose.

Further, it is preferable to connect a card reader / writer for an IC card, a printer for issuing a slip, and an alarm to the control device.

Further, it is preferable that the vehicle number, the model of the truck, the hatch number, and the discharge pipe number are fixedly stored in the IC card, and the type of oil and the amount of oil are stored when loading at the oil tank.

[0009]

In the oil mixing prevention device constructed as described above, the driver of the tank lorry reads the I
When the C card is inserted, the control device determines the model of the lorry from the stored contents of the IC card, and then controls the top loading type lorry or the bottom loading type lorry.

For the top loading type lorry,
The driver connects the lubrication hose to the discharge pipe and the lubrication valve,
When the sensor is connected to the first identification piece, the discharge pipe number and the oil type / space amount of the oil storage tank to be unloaded are read, and the second
When the sensor is connected to the second identification piece and the bottom valve is opened, the type and amount of oil to be unloaded is determined from the discharge pipe number and the contents of the IC card, and if it is OK compared to the oil storage tank, the lubrication valve Open, and if not OK, activate the alarm to warn.

For the bottom loading type lorry,
When the driver connects the first sensor to the first identification piece in the same manner as above, the discharge pipe number and the oil type / space amount of the oil tank to be unloaded are read, and the discharge pipe number and the contents of the IC card are used for unloading. The oil type and the amount of oil to be used are determined, and if it is OK as compared with the oil storage tank, the oil injection valve is opened, and if it is not OK, an alarm is activated to warn.

[0012]

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

In FIG. 1, underground tanks T1 and T2 are buried in site A of a gas station, and are connected to the ground by oil injection pipes 1a and 1b. Then, for example, the tank T1 stores regular gasoline and the tank T2 stores high-octane gasoline.

Oiling valves 2a and 2b are provided at the tips of the oiling pipes 1a and 1b, respectively, and tanks T1 and T are provided.
2, a liquid level measuring unit 4a equipped with floats 3a and 3b,
4b is provided. The oil supply valves 2a and 2b are connected to the valve control unit 11, and the liquid level measurement units 4a and 4b are connected to the liquid amount calculation unit 15 including the liquid amount indicator 15a. And the liquid volume calculation unit 15
Each is connected to the control device 10 provided in the office. The control device 10 includes a discharge sensor connection sensor, which will be described later, that is, a first sensor connection detection unit 12 that detects connection of a first sensor 23 and an oil supply pipe, and an earth detection unit 13 that detects connection of an earth wire 13a. , A bottom valve open sensor, that is, a second sensor detection unit 1 that detects the connection of the second sensor 27.
4, an alarm 16, a printer 17, and a card reader / writer 18 for an IC card 19 described later are connected to each other.

On the other hand, the top loading tank truck R1 is provided with hatches H1 to H4. For example, the hatches H1 and H2 contain regular gasoline (R) and the hatch H1.
3 is loaded with high-octane gasoline (H), and hatch H4 is loaded with light oil (K). These hatches have
Bottom valves 21a to 21d that are opened and closed by the bottom valve handles 20a to 20d, respectively, and a second identification piece 2 that identifies the opening and closing of the bottom valve.
2a to 22d are provided. The second sensor 27 that engages with the second identification pieces 22a to 22d is provided so as to be connected to the second sensor detection unit 14. Further, a discharge pipe 24a for the hatches H1 and H2 and a discharge pipe 24b for the hatches H3 and H4 are provided. These discharge pipes 24
The discharge pipe valves 25a and 25b and the first identification pieces 26 for identifying the opening and closing of the discharge pipe valves 25a and 25b are provided at a and 24b.
a and 26b are provided respectively. And the first
The first sensor 23 that engages with the identification pieces 26a and 26b is provided near the lorry side coupling 31 of the oil supply hose 30, and the coupling 32 for the oil supply valves 2a and 2b is provided at the other end of the oil supply hose 30. It is provided. The bottom loading tank truck R2 has hatches h1 to h4.
Are provided in the hatches, and discharge pipes 28a to 28 are provided in the hatches.
d and the same first identification pieces 29a to 29d as described above are provided.

FIG. 2 shows an example of the code contents of the IC card 19 carried by the truck driver. The contents are car number, car model of top loading or bottom loading, number of hatches H1 to H4, number of discharge pipe,
It is the oil type / oil amount, and these oil type / oil amount are stored at the time of loading at the oil tank, and the unloading code is stored in the space a at the time of unloading.

Next, the control mode will be described with reference to FIGS. 3 and 4. In FIG. 3, the top loading tank truck R1 arrives at the gas station A and reads the IC card 19 into the card reader / writer 18 (step S
1) When the driver connects the ground wire 13a to the lorry R (step S2), the control device 10 determines whether the lorry R is a top loading type lorry (hereinafter referred to as a top car) R1 based on the stored contents of the IC card 19. Yes (Step S
3). In the case of NO, that is, in the case of bottom loading type lorry (hereinafter referred to as the bottom vehicle) R2, the flow moves to the flow shown in FIG.
a is connected to the lubrication valve 2a and the first sensor 23 is connected to the first identification piece 26a (step S4), the controller 10
Reads the oil type and space amount of the tank T1 based on the signal from the liquid level measuring unit 4a corresponding to the tank T1 of the connected oil supply pipe 1a, and based on the signal from the first sensor 23, the discharge pipe 24a Is read (step S5). In this way, the control device 10 can determine which tank is connected. Next, the driver connects the second sensor 27 to the second identification piece 22a (step S6),
When the bottom valve handle 20a is turned to open the bottom valve 21a, the control device 10 determines the oil type and the oil amount of the hatch H1 to be unloaded from the number of the discharge pipe 24a, the second sensor 27 and the data of the IC card 19. , It is judged whether or not it is OK as compared with the tank T1 (step S7), and if YES, the lubrication valve 2a
Is opened (step S8). Therefore, the driver sets the discharge pipe valve 2
Unloading can be performed by opening 5a. When the unloading is completed and the first sensor 23 is removed (step S9), the control device 10 determines that the unloading is completed, and the card reader /
The writer 18 stores the unloading code in the corresponding portion a of the IC card 19 (step S10). If all the unloading is over and the driver removes the other sensor, that is, the second sensor 27, and removes the ground wire 13a (steps S11 and S1).
(2, S23, S24), the control device 10 uses the printer 17
Issues a slip (step S25) and ends the control.

When the oil in the hatch H2 is continuously unloaded, the first sensor 23 is not removed in step S9 (in the case of NO), and the second sensor 27 is removed (step S13). The unloading code is stored as in S10 (step S14). When the second sensor 27 is connected to the second identification piece 22b (step S1
5) Return to step S7 to perform the above-mentioned operation. If the first sensor 23 is removed without connecting the second sensor 27 (step S16), the above-mentioned steps S23 and thereafter are executed.

When unloading from one discharge pipe 25a after unloading the other discharge pipe 25a, the first sensor 23 is attached to another hatch.
This is the case when 1 or step S23 is YES. Therefore, in this case, the process returns to step S5 and the same operation as described above is performed.

When step S7 is NO, that is, when the oil type and the amount of oil are not OK with respect to the tank T1, the control device 10 operates the alarm 16 to warn (step S1).
7). In this case, the driver attaches the lubrication hose 30 to the discharge pipe 2
4a, the first sensor 23 is removed, and another discharge pipe 24b
Or the second sensor 27 is removed and the second identification pieces 22b, 22c, ... Of another hatch are connected (step S18). Then, the process proceeds to step S23, the second sensor 27 is removed (step S19), and when the second sensor 27 is connected to the second identification piece of another hatch (step S20), the process returns to step S7. When the second sensor 27 is not connected and the first sensor 23 is removed (step S21), the process proceeds to step S23.

FIG. 4 shows a control mode for the bottom vehicle R2. In step S3 of FIG. 3, it is determined that the vehicle is a bottom vehicle, and the driver inserts the lubrication hose 30 into the discharge pipe 2 for example.
8a and the lubrication valve 2a, and connects the first sensor 23 to the identification piece 2
When connected to 9a (step S36), based on the signal from the liquid level measuring unit 4a of the tank T1 of the connected lubrication pipe 1a, the oil type / oil amount and space amount of the tank T1 are read,
The number of the discharge pipe 28a is read based on the signal from the first sensor 23 (step S27). Next, the oil type and amount of the hatch H1 to be unloaded is determined from the data of the IC card 19, and it is determined whether or not it is OK as compared with the tank T1 (step S28). If YES, the lubrication valve 2a is turned on. Open (step S29) to enable unloading. Therefore, when the driver opens a valve (not shown) and unloads, and when the unloading ends and the first sensor 23 is removed (step S30), the card reader / writer 18 unloads the corresponding portion a of the IC card 19. The completed code is stored (step S31). When all the unloading ends and the driver removes the first sensor 23 and disconnects the ground wire 13a (steps S35 and S36), the slip is issued from the printer 17 (step S37), and the control ends.

When the oil of another hatch is unloaded, the first sensor 23 is connected to the identification piece 29b of the other discharge pipe 28b (step S35) before the ground wire 13a is removed (step S36). The process moves to step S27. Also,
When step S28 is NO, that is, when the oil type / oil amount is not OK for the tank T1, the control device 10 activates the alarm 16 to warn (step S32). Therefore, the driver removes the first sensor 23 and connects it to another, for example, the first identification piece 29b of the discharge pipe 28b (step S3).
3) and moves to step S35.

[0023]

Since the present invention is configured as described above, it is possible to reliably prevent oil mixture in both the top loading type tank lorry and the bottom loading type tank lorry.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram showing an embodiment of the present invention.

FIG. 2 is a diagram illustrating the contents of an IC card.

FIG. 3 is a control flowchart for a top loading tank truck.

FIG. 4 is a control flowchart for a bottom loading tank truck.

[Explanation of symbols]

 H1 to H4, h1 to h4 ... Hatch R ... Top loading type tank truck R1 ... Bottom loading type tank truck T1, T2 ... Underground tank 1a, 1b ... Lubrication pipe 2a, 2b ... Lubrication Valves 3a, 3b ... Float 4a, 4b ... Liquid level measuring unit 10 ... Control device 20a-20d ... Bottom valve handle 21a-21d ... Bottom valve 22a-22d ... Second identification Piece 23 ... 1st sensor 24a, 24b, 28a-28d ... Discharge pipe 25a, 25b ... Discharge pipe valve 26a, 26b, 29a-29d ... 1st identification piece 27 ... 2nd sensor 30 ... Lubrication hose 31, 32 ... Coupling

Claims (1)

[Claims] 1. A first sensor connected to a first identification piece for detecting a discharge pipe connection of a top loading type tank lorry and a bottom loading type tank lorry, and a second identification piece for detecting a bottom valve opening of the top loading type tank lorry. The second sensor connected to the tank, the type code and cargo data stored in the IC card for each tank lorry, and the oil type data of the oil storage tank are used to determine the oil type of the oil storage tank and the hatch of the tank lorry to apply oil. An oil mixing prevention device, which is provided with a control device for controlling.