JP2831420B2 - Gas station system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial applications]

The present invention relates to a gas station system installed in a gas station,
In particular, the efficiency of lubrication work to underground tanks, streamlining of operations,
The present invention relates to a gas station system suitable for achieving improvement in safety and the like.

[Prior art]

Conventionally, several underground tanks that store oil liquid to be supplied to a measuring machine are buried in a gas station, and a lubrication port is provided for each lubrication pipe that communicates with each underground tank. There is a fueling station in a form in which a one-to-one correspondence is made with the gas station. When lubricating from a tank truck to multiple underground tanks at this type of refueling station, connect the lubrication hose of the tank truck to each lubrication port that communicates with each underground tank to be lubricated. Lubrication is performed by opening a manual valve provided at the mouth.

[Problems to be solved by the invention]

By the way, the above-mentioned underground tank and lubrication
There is the following problem in the one-to-one service station. At the time of lubrication work to each underground tank, it is necessary to reconnect the lubrication hose of the tank truck to the corresponding lubrication port each time and open / close the manual valve of the lubrication port, which makes the connection work complicated and lubrication work. It takes time, and the lubrication work efficiency decreases. In addition, every time lubrication work is performed, opening and closing the manual valve provided at each lubrication port and the valve for the underground tank provided for each underground tank lubrication pipe must be complicated. Becomes On the other hand, the present applicant has previously proposed a technique in which a plurality of underground tanks storing oil liquids of the same oil type are connected by a common pipe, and an oil inlet on the ground side in the common pipe is provided at one place. However, the proposal still has the following problems. When performing the lubrication work from the one lubrication port to an underground tank of a complex base of the same oil type, open the valve of the lubrication pipe of one of the underground tanks of the plurality of underground tanks, close the valve after lubricating, In order to take the work procedure of opening the valve of the lubrication pipe of the next underground tank, closing the valve after lubricating, so that during the transition from the lubrication work of the one underground tank to the lubrication work to the next underground tank, The valves of the lubrication pipes of other underground tanks except the underground tank are closed. For this reason, since the hydraulic pressure of the oil remaining in the tank of the tank truck is directly applied to the valve to be switched at the time of switching the valve, there is a difficulty in the durability of the valve. Also, in the case of a tank lorry type vehicle in which an oil liquid storage tank of the same oil type is divided into a plurality of chambers and an oiling hose is provided for each tank, as described above, a plurality of tanks of the same oil type are used. Since there is only one lubrication port in the underground tank, the lubrication work cannot be performed using the plurality of lubrication hoses at the same time, resulting in a problem that the lubrication work efficiency is deteriorated. SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and an object of the present invention is to provide a gas station system that achieves efficiency of lubrication work to an underground tank, rationalization of operation, improvement of safety, and the like.

Means for Solving the Problems In order to achieve the above object, the present invention relates to a tank provided in a gas station and storing an oil liquid to be supplied to a measuring machine,
A liquid level detecting means for detecting the level of the stored oil liquid in each of the tanks, and an oil liquid outlet provided on each of the tanks, with one side serving as an oil inlet and the other communicating with the tank and serving as an oil liquid outlet; And a common lubrication pipe that connects the lubrication pipes connected to a plurality of tanks storing oil liquids of the same oil type in a communicating state, and a lubrication pipe for each of the lubrication pipes. Valves provided on the downstream side of the common lubrication pipe connection, oil type data indicating the oil type of a desired tank for performing lubrication from the oil tank means, and a lubrication port of the lubrication pipe communicating with the desired tank are shown. The operating means for inputting the lubrication port data, and when the oil type data and the lubrication port data input from the operating means have a corresponding relationship, the valve of the lubrication pipe communicated with the lubrication port corresponding to the lubrication port data. And open the desired tank. When the oil level from the oil tank means reaches a predetermined upper limit value, the oil level from the desired tank detected by the liquid level detecting means with the oil supply from the oil tank means is enabled. Control means for closing a valve in a valve state.

[Action]

According to the present invention, at the time of lubricating work to the lubrication desired tank, when the oil type data and the lubrication port data of the lubrication desired tank are inputted from the operating means, the control means determines that the lubrication is desired when both data are determined to be in a corresponding relationship. Open the lubrication piping valve that communicates with the tank. Thereby, the oil supply from the oil tank means to the oil supply desired tank is started, and when the oil liquid level in the tank reaches the upper limit value, the control means closes the valve.

【Example】

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic diagram of a gas station to which the gas station system of the present embodiment is applied. In the gas station site, a gas station building 1, an external operation device 2 (see FIG. 2), and A plurality of weighing machines (not shown) for pumping the liquid are installed, and a central control unit 3 for controlling each part of the gas station system is installed inside the gas station building 1. On the other hand, in the basement of the gas station, for example, four underground tanks 4A that store oil of the same oil type,
4B, 4C, 4D, lubrication pipes 5A, 5B, 5C, 5D for lubricating the oil liquid to each of these underground tanks 4A to 4D, and an underground tank 6 for storing an oil liquid of an oil type different from the oil type An oil supply pipe 7 for injecting the oil liquid into the underground tank 6, an underground tank 8 for storing an oil liquid of an oil type different from each of the above oil types, and an oil liquid to the underground tank 8 And the lubrication pipe 9 are buried. The number of underground tanks installed is not limited to the above. Further, the oil liquid outflow side at the lower end of each of the lubrication pipes 5A to 5D communicates with the inside of each of the underground tanks 4A to 4D, and the lubrication ports 10, 11, 12, and 13 at the upper end are disposed on the underground side. Further, the ground side of each of the lubrication pipes 5A to 5D is connected by a pipe 14, and these lubrication pipes 5A to 5D constitute a common lubrication pipe 15. The oil liquid outflow side at the lower end of the lubrication pipe 7 communicates with the inside of the underground tank 6 and the lubrication port 16 at the upper end.
Is arranged on the ground side, the oil liquid outflow side at the lower end of the oil supply pipe 9 communicates with the inside of the underground tank 8, and the oil inlet 17 at the upper end is arranged on the ground side. Further, identification numbers are assigned to the lubrication ports 10 to 13, 16, and 17, and the lubrication ports NO are associated with the oil type of the oil stored in the underground tank communicating with the respective lubrication ports, and the central control unit is controlled by the central control unit. 3 is registered in the memory (not shown), and the identification number of each underground tank and each password unique to each tank lorry described later are also registered in the memory of the central control unit 3. Further, the memory stores an upper limit flag (not shown) indicating that the oil liquid level of each underground tank has reached the upper limit value. In this case, an oil liquid storage tank (not shown) is divided into, for example, two chambers, and a tank truck T equipped with two lubrication hoses H1 and H2 connected to each tank is used to lubricate each of the underground tanks. If so, the worker must lubricate the hose
After connecting H1 and H2 to the lubrication port for lubrication work and manually opening the main valves V1 and V2, the manual valve (not shown) provided at the lubrication port is opened to operate the tank truck. The oil liquid in the T tank is supplied to the underground tank via an oil supply pipe. In addition, the lubrication pipes 5A to 5D, 7, 9 are provided with valves 18, 19, 20, 21, 22, 23 for the underground tank, respectively, so that opening and closing are controlled by the central control unit 3. Has become. Further, liquid level sensors 24, 25, 26, 27, 28 and 29 are disposed inside the underground tanks 4A to 4D, 6 and 8, respectively, to detect the remaining oil and liquid in each underground tank. The data is output to the central control unit 3. Thus, the central control unit 3 determines whether or not the oil liquid level of each of the underground tanks 4A to 4D, 6, 8 has reached a preset upper limit value. Also, an operation display unit 30 provided in the external operation device 2
As shown in FIG. 2, a numeric keypad for inputting various numerical values such as a password unique to the tank truck T and an amount of lubrication is provided.
31, a setting key 32 for determining the number data by the numeric keypad 31, a loading key 33 to be pressed when the oil liquid mounted on the tank lorry T arrives, and the underground tanks 4A
Oil type key 34 for setting the oil type (regular gasoline / lead-free high-octane gasoline / leaded high-octane gasoline / light oil / kerosene) of the oil liquid to be injected into 4D, 6 and 8, and pressed when the lubrication work is completed And a display 36 for displaying numerical data, a message, and the like input from the numeric keypad 31. The external operation device 2 has a buzzer 37 for alarming an input error from the operation display unit 30.
(See FIG. 1). Next, the lubrication control processing of the present embodiment having the above configuration is described in the third.
A description will be given based on the drawings. ◎ Lubrication control processing When a tanker truck T loaded with oil and liquid enters the gas station following an order from this service station to the oil depot, the worker (or crew) will use the lubrication hoses (two locations) of the tanker truck T When lubricating from the lubrication port, both H1 and H2, 1
When lubricating from a lubrication port at one location, perform preparatory work to connect one side to the relevant lubrication port to be lubricated. In this case, in this embodiment, as described later, the number of lubrication ports to be lubricated is two (the lubrication ports 11 and 13). After the connection work, the operator inputs the password unique to the tank lorry T into the numeric keypad of the operation display unit 30 of the external operation device 2.
Input from 31 (step SP1), and press the arrival key 33 (step SP2). In this case, the input of the password may be omitted and the arrival key 33 may be directly pressed. When "Please input oil type" is displayed on the display 36 following the above operation (step SP3), the operator inputs the oil type to be injected into the underground tank from the oil type key 34 of the operation display unit 30. (Step SP4). This causes the display 36 to display "Please enter the oil filler NO of the applicable oil type" (step SP5).
Enter O (step SP6). In this case, in this embodiment, the input lubrication port NO is the same oil type for each underground tank 4A to
The lubrication ports 11 and 13 that communicate with 4D are the lubrication ports NO. The central control unit 3 determines the oil type input in step SP4 and the oil port NO input in step SP6 based on the correspondence between each oil port NO and each oil type registered in the memory described above. It is determined whether they match (step SP7).
If the oil type does not match the oil filler NO, "input error" is displayed on the display 36 (step SP8), and a short buzzer sounds from the buzzer 37 of the external operation device 2 to warn of the input error. Later (step SP9), the process returns to step SP5. On the other hand, if the oil type matches the lubrication port NO, “Lubrication port NO × OK” is displayed on the display 36 (step SP10), and the underground tank of the lubrication pipe corresponding to the lubrication port of the relevant lubrication port NO is displayed. All valves (18 to 21 in this embodiment) are opened (step SP11). In this case, all the valves for the underground tank corresponding to the lubrication port that are not applicable are closed, but the valves for the underground tank during lubrication are kept open. Next, the worker
After manually opening the main valves V1 and V2 of the lubrication hoses H1 and H2 of the tank truck T connected to 11 and 13,
The manual valves 1 and 13 are opened to start the operation of lubricating the oil liquid of the tank truck T to the underground tanks 4A to 4D via the common lubrication pipe 15 (step SP12). Thereby, the oil liquid of the tank truck T is injected into each of the underground tanks 4A to 4D through the oil supply pipes 18 to 21 constituting the common oil supply pipe 15. Next, as the lubrication work progresses, the central control unit 3 scans the detection data of each liquid level sensor in order from the underground tank having the lowest identification NO among the underground tanks 4A to 4D, and
It is determined whether the oil liquid level of the underground tank has reached the upper limit value (step SP13). If the upper limit value has been reached, the valve for the underground tank of the lubrication pipe communicating with the underground tank is closed (step SP14). After setting the upper limit flag of the memory to "1" (step SP15), the process proceeds to step SP16. On the other hand, if the upper limit has not been reached in step SP13, it is determined whether or not the oil level of the underground tank having the second lowest identification NO has reached the upper limit (step SP16). Closes the valve for the underground tank of the lubrication pipe communicating with the underground tank (step SP17), and sets the upper limit flag of the memory to "1" (step SP1).
8) The process proceeds to step SP19. On the other hand, the above step SP1
If the upper limit is not reached at 6, the nth youngest identification NO
It is determined whether or not the oil liquid level of the underground tank has reached the upper limit (step SP19). If the oil liquid level has reached the upper limit, the valve for the underground tank of the oil supply pipe communicating with the underground tank is closed (step SP20). After setting the upper limit flag of the memory to "1" (step SP21), the process proceeds to step SP22. Next, it is determined whether or not all the upper limit flags corresponding to the respective underground tanks (4A to 4D in this embodiment) have become "1", that is, whether or not the oil liquid level of each underground tank has reached the upper limit value ( Step SP22). When the upper limit is reached, "Overflow" is displayed on the display 36 (step SP23), and the buzzer 37 of the external operation device 2 sounds a short buzzer to notify the overflow (step SP24). The original valves V1 and V2 of the car T are manually closed (step SP25). Thereafter, it is determined whether or not the worker has pressed the end key 35 of the operation display unit 30 of the external operation device 2 (step SP26). If the key has been pressed, the process proceeds to step SP28. The procedure returns to step SP23. On the other hand, if the oil liquid level of each underground tank has not reached the upper limit in step SP22, it is determined whether the end key 35 has been pressed (step SP27). If not, the process returns to step SP13. If the button is pressed, the process proceeds to step SP28. Next, following the display of "Please input the lubrication port NO" on the display 36 (step SP28), the operator uses the numeric keypad 31 of the operation display unit 30 to select a different oil type from the one for which the lubrication operation has been completed. Enter the oil filler NO corresponding to the oil type (Step
(SP29), the central control unit 3 determines whether or not lubrication work is being performed on the underground tank corresponding to the input lubrication port NO, and whether or not the tank liquid level has stopped rising (step SP30). If the lubrication operation has been performed and the tank liquid level has not risen, an "input error" is displayed on the display 36 (step SP31), and a short buzzer sounds from the buzzer 37 of the external operation device 2 to issue an alarm. (Step SP32), Step SP above
Return to 28. On the other hand, if the lubrication operation has been completed and the rise in the liquid level has stopped, the timer (not shown) built in the central control unit 3 starts measuring time (step SP33). Next, the operator manually closes the original valves V1 and V2 of the tank truck T (step SP34). Thereafter, when the time measured by the timer has passed a predetermined time (for example, 5 minutes in the present embodiment, but is not limited to this) (step SP35), the central control unit 3 sets the tank truck T Then, it is determined that all the oil liquid has been injected into the underground tanks 4A to 4D, and all the underground tank valves of each underground tank corresponding to the lubrication port input in step SP29 are opened (step SP36).

【The invention's effect】

According to the present invention as described above, a plurality of tanks are provided in a gas station and store an oil liquid to be supplied to a weighing machine,
A liquid level detecting means for detecting the level of the stored oil liquid in each of the tanks, and an oil liquid outlet provided on each of the tanks, with one side serving as an oil inlet and the other communicating with the tank and serving as an oil liquid outlet; And a common lubrication pipe that connects the lubrication pipes connected to a plurality of tanks storing oil liquids of the same oil type in a communicating state, and a lubrication pipe for each of the lubrication pipes. Valves provided on the downstream side of the common lubrication pipe connection, oil type data indicating the oil type of a desired tank for performing lubrication from the oil tank means, and a lubrication port of the lubrication pipe communicating with the desired tank are shown. The operating means for inputting the lubrication port data, and when the oil type data and the lubrication port data input from the operating means have a corresponding relationship, the valve of the lubrication pipe communicated with the lubrication port corresponding to the lubrication port data. And open the desired tank. When the oil level from the oil tank means reaches a predetermined upper limit value, the oil level from the desired tank detected by the liquid level detecting means with the oil supply from the oil tank means is enabled. Control means for closing the valve in the valve state.
The following effects can be obtained. Each lubrication pipe connected to each tank is provided with an independent lubrication port for each tank, and the tanks that store the oil of the same oil type are connected by a common pipe. At the time of work, it becomes possible to reduce the number of times that the lubrication hose of the oil tank means is connected to the lubrication port to be lubricated, as compared with the related art,
It is possible to achieve efficient lubrication work. According to the above, it is possible to perform the lubrication work in parallel using the plurality of lubrication hoses from the oil tank means having a plurality of lubrication hoses, and to perform the lubrication work in parallel from the plurality of oil tank means. Is also possible. In addition, the number of opening and closing operations of the valve arranged in the lubrication pipe communicating with each tank can be reduced as compared with the conventional one, and the hydraulic pressure and impact due to the residual oil liquid in the oil tank means on the valve when the valve is closed can be minimized. Is possible, and a longer life of the valve can be achieved. In addition, it is possible to properly cope with the lubricating oil type and the lubrication port at the time of lubrication work, it is possible to prevent overflow and the like, and it is possible to establish safety.

[Brief description of the drawings]

FIG. 1 is a block diagram of a gas station system according to an embodiment of the present invention, FIG. 2 is a front view of an operation display unit of an external operation device of the embodiment, and FIG. 3 is a flowchart of a lubrication control process of the embodiment. It is. 2 ... external operation equipment (operation means), 3 ... central control unit (control means), 4A-4B, 6, 8 ... underground tank, 5A-5
D, 7, 9 ... lubrication piping, 10-13, 16, 17 ... lubrication port, 1
5 Common lubrication piping, 18-21 Underground tank valve (valve), 24-29 Liquid level sensor (liquid level detecting means), T
... Tank truck (oil tank means).

Claims (1)

(57) [Claims] 1. A plurality of tanks provided in a gas station for storing an oil liquid to be supplied to a weighing machine; a liquid level detecting means for detecting a level of the stored oil liquid in each of the tanks; One side is a lubrication port, the other side is an oil liquid outlet communicating with the tank, and an oil liquid is injected from the oil tank means, and a plurality of oil pipes of the same oil type are stored in the oil pipes. A common lubrication pipe that connects the lubrication pipes that are in communication with each other to the tanks, a valve provided downstream of the common lubrication pipe connection part of each lubrication pipe, and a desired lubrication from the oil tank means. Oil type data of the tank, operating means for inputting oil port data of an oil supply pipe connected to the desired tank, and when the oil type data and the oil port data input from the operating means are in a correspondence relationship, For the above lubrication port data A valve of a lubrication pipe communicating with a lubrication port to be opened is opened to allow lubrication from the oil tank means to the desired tank, and the desired tank detected by the liquid level detection means in accordance with lubrication from the oil tank means. And a control means for closing the valve in the open state when the stored oil liquid level reaches a preset upper limit value.