JPH054694A - Liquid supply apparatus - Google Patents

Abstract

PURPOSE:To improve operating efficiency of oil supply and enable safe oil supply without artificial errors by obtaining a signal from a load permission determination means and controlling opening/closing of respective load valves and a control valve to supply oil to a tank chamber of target. CONSTITUTION:The number of loading arms 17, 19, 21, 23, 25, 27 to be connected to a first tank chamber 107 through a sixth tank chamber 117 is determined by a loading arm connection number determination means, and the result is sent to a load permission determination means, where from a vehicle number confirmed by a vehicle number confirmation means, the number of loading arms connected to the tank chambers which has been determined is compared with the number of tank chambers of tank data to determine whether or not the number of connected loading arms coincides with the number of the tank chambers in the tank data. When the numbers coincide with each other, a load permission signal is sent from the load permission determination means to a control means, which controls opening/closing of load valves and a control valve to supply oil to respective tank chambers according to the tank data.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid supply device for preventing confusion of oil types when, for example, supplying oil of different oil types to a tank truck at an oil tank station.

[0002]

2. Description of the Related Art Generally, a tank lorry is equipped with a tank having a tank chamber partitioned into a maximum of 6 to 7 tanks, and supplies different kinds of oil such as gasoline, kerosene, and light oil from a storage tank on the supply side such as an oil tank. After it is individually loaded into the room, it is transported to the demand destination such as a gas station and the oil is unloaded to the underground tank, which is the storage tank on the receiving side of the demand destination.

Generally, in an oil tank, as shown in FIG. 9, one loading arm 1 is installed for one oil type, and a general rack (stage) 3 is used for four oil types and six oil types. The loading arm 1 is installed. Then, the type of oil is determined for each tank chamber 9 of the tank 7 of the tank truck 5, and the loading arm 1 corresponding to the type of oil is pulled out and loaded. After loading one oil type, the loading arm 1 is stored on the rack 3, the loading arm 1 for the next oil type is pulled out, and the loading arm 1 is connected to the hatch of another tank chamber 9 for this purpose. Load the oil species of. In the figure, light is light oil, light is kerosene, RG is regular gasoline, and HG is high-octane gasoline.

By the way, when loading different kinds of oil into the tank chamber of the tank truck as described above, for example, gasoline may be mistakenly supplied from the storage tank for the regular gasoline supply side to the light oil tank chamber of the tank truck. As a matter of fact, there was a situation in which the oil type was accidentally loaded into the tank chamber for another oil type.

Therefore, in order to avoid such a situation, many proposals have been made recently including the liquid supply device disclosed in Japanese Patent Publication No. 1-50679. The liquid supply device disclosed in Japanese Patent Publication No. 1-50679 is a loading arm for each liquid supply system including a detection tool provided for each hatch of a tank truck, a flow meter, a control valve, and an oil supply system control means. Equipped with a detector (hatch number recognition sensor) provided in the tank, a liquid supply data storage means for storing liquid supply data of the oil type to be loaded for each hatch of the tank truck, and a hatch stored in the liquid supply data storage means. And a judging means for comparing the signals of the hatch and the liquid type obtained from the signal output from the detector when the liquid type and the device to be detected are connected, and the liquid supply permission signal when the signals match. A liquid supply permission means for outputting to the system control means, and an informing means for informing when the above signals do not match,
If the signals are matched by the determination means, the liquid is supplied, and if the signals are not matched, the notification means is used to notify that effect without allowing refueling.

[0006]

However, even in the above-mentioned liquid supply device, the loading arm, which is individually installed for each oil type, is connected to the tank chamber, loaded, disconnected, and stored on the rack. Since the work is repeated, the work is complicated, and at that time, the loading arms that are not used often have to be moved because the loading arms interfere with each other and other loading arms interfere. In addition, in order to specify the hatch number of the tank truck, it is necessary to connect the detection tool provided for each hatch and the detector provided for each loading arm, which makes the work more complicated.

Further, when a loading arm of a different oil type is mistakenly connected to another hatch, the hatch must be disconnected again and reconnected, and the time loss in such a case was large.

The present invention has been devised in view of the above circumstances, and eliminates the risk of frequent connection and disconnection of the loading arm to the tank chamber on the tank truck.
It is another object of the present invention to provide a liquid supply device that eliminates the work of connecting the detection tool and the detector to improve workability and can safely load oil without human error.

[0009]

In order to achieve such an object, a liquid supply device according to the present invention is provided with a plurality of tank trucks to be loaded with oil on a supply-side storage tank side containing a plurality of oil types. With a loading arm installed as many as the maximum number of tank rooms that one tank lorry has,
It is mounted on the line between each supply side storage tank and each loading arm and on the line between each loading arm and each loading arm, and opens and closes the line to each loading arm. A control valve, a bypass line connected between the control valve of each line and the cargo handling valve via a branch line to connect the lines, and a control valve attached to each branch line to open and close the branch line. ,
Input means for inputting tank data of the type of oil to be loaded and the loading amount according to the tank room arrangement for each vehicle number of the tank truck to be loaded with oil, and the vehicle number of each tank truck to be loaded with oil and the tank chamber of each tank truck Storage means such as arrangement, tank configuration such as tank chamber capacity, and tank data from the input means, loading arm connection number determination means for determining the number of connections between the loading arm and the tank chamber, and tank lorry for loading. The vehicle number confirmation means for confirming the vehicle number, the number of loading arm connections to the tank chamber determined by the loading arm connection number determination means from the vehicle number confirmed by the vehicle number confirmation means, and the tank data in the storage means When the number of connected loading arms and the number of tank chambers in the tank data match, By inputting a signal from the cargo handling permission judging means for issuing a cargo handling permission signal and the signal from the cargo handling permission judging means, the above-mentioned cargo handling valves and control valves are controlled to be opened and closed so that the target oil is supplied to the target tank chamber. And a control means for controlling the operation.

[0010]

According to the present invention, the number of loading arms connected is determined by the loading arm connection number determining means, and the result is sent to the cargo handling permission determining means.
Then, the cargo handling permission judging means compares the number of loading arms connected to the tank chamber judged by the loading arm connection number judging means with the number of tank rooms of the tank data from the vehicle number confirmed by the vehicle number confirming means. Then, it is determined whether the number of connected loading arms and the number of tank chambers in the tank data match.

When the numbers match, a cargo handling permission signal is issued from the cargo handling permission judging means to the control means, and the control means controls the opening and closing of the cargo handling valve and the control valve to respond to each tank data. The tank room will be refueled. If it is determined that they do not match, the control means does not give the liquid supply permission and the fuel is not supplied.

[0012]

Embodiments of the present invention will now be described in detail with reference to the drawings. 1 to 6 show a liquid supply device according to an embodiment of the present invention. In FIG. 1, 11 is a rack provided on the premises of an oil tank station 13, and on the rack 11, generally the largest tank tank 6 loading arms 17, 19, 21, 23, 25, 27, which are the same as the number of tank chambers of the 20 kiloliter tank truck 15 having the number of tank chambers, are installed, and the loading arms 17, 19, 21, 21, 23 are provided. ，
Numbers 25 and 27 are numbered in order from the driver's cab 29 side of the tank truck 15 such as a first loading arm 17, a second loading arm 19, a third loading arm 21, .... Each loading arm 17, 19, 21, 23, 25, 27 is structurally the same as a known loading arm.

Then, as shown in FIG. 1 and FIG.
The loading arm 17 is connected to a pipeline 31 from a supply-side storage tank containing high-octane gasoline by a line 33, and on the line 33, a flow meter 35, a cargo handling valve 37, and a control valve are arranged in this order from the upstream side. 39 is attached. Similarly, the second loading arm 19 is connected to the pipeline 41 and the line 43 from the supply side storage tank containing the regular gasoline, and the line 4
A flow meter 45, a cargo handling valve 47, and a control valve 49 are sequentially mounted on the upper side of the unit 3.

Further, the third and fourth loading arms 21,
23 is connected to a pipeline 51 from a supply-side storage tank that stores light oil via a line 53 whose downstream side is bifurcated, and on this line 53, a flowmeter 55 and a flowmeter 55 are sequentially provided from the upstream side. The cargo handling valve 57, and the line 53a to the third loading arm 21 which is bifurcated, and the fourth
Control valves 59 and 61 are attached to the line 53b to the loading arm 23, respectively. Similarly, the fifth and sixth
The loading arms 25 and 27 are connected to a pipeline 63 from a supply-side storage tank that stores kerosene via a line 65 that is bifurcated on the downstream side. Flow meter 67 and cargo handling valve 69
But, the fifth loading arm 25 split in two
To the line 65a to the sixth loading arm 27 and control lines 71 and 73 are attached to the line 65b to the sixth loading arm 27, respectively.

The lines 33, 43, 53,
65 has a structure in which they are communicated with each other via a bypass line 75. That is, each line 33, 43, 53, 6
A bypass line 75 is connected to the downstream side of the cargo handling valves 37, 47, 57, 69 mounted on the vehicle 5 via branch lines 77, 79, 81, 83, respectively, and each branch line 77, 79, 81 and 83 have control valves 85 and 8 respectively.
7 89 91 is installed. Then, for example, in order to supply high-octane gasoline to the first loading arm 17, the control valve 39 is opened, the control valve 85 is closed, and the cargo handling valve 37 is opened. High-octane gasoline is supplied to the first loading arm 17 through the second loading arm 1.
To supply high-octane gasoline to 9, control valves 85 and 8
7, 49 are opened, and the cargo handling valve 47 and the control valve 39,
If the cargo handling valve 37 is opened with 81 and 91 closed,
High-octane gasoline is supplied to the second loading arm 19 from the pipeline 31 through the line 33 → branch line 77 → bypass line 75 → branch line 79 → line 43.

3 and 4 show the entire structure of the liquid supply apparatus according to the present embodiment. A host computer 95 for managing the entire oil tank station 13 is installed in the office 93 of the oil tank station 13, and the host computer 95 is installed in the office 93. The computer 95 has an input device 97 as its terminal device, and the input device 97 is provided with a vehicle number reading means 99 as shown in FIG. Further, as shown in FIG. 4, a shipping control device having a local computer 103 is installed in the shipping facility 101 in the oil tank place 13.

ROM 10 of the host computer 95
In 5, the tank configuration for each vehicle number of the tank truck is stored. For example, the tank truck 15 of the vehicle number 001 has six tank chambers, and the first tank chamber 107, the second tank chamber 109, the third tank chamber 111, and the fourth tank chamber to which the tank numbers are attached from the driver's cab 29 side. The capacities of 113 are 4 kiloliters each, and the fifth tank chamber 115 and the sixth tank chamber 1
The data that the capacity of 17 is 2 kiloliters is stored.

The RAM 15 of the host computer 95
In the tank 9, the tank data of the tank chamber configuration (tank chamber number and tank capacity), the type of oil to be loaded from now on, and the scheduled loading amount can be correspondingly written for each tank truck.

For example, in the case of the tank truck 15 with the vehicle number 001, high-octane gasoline is scheduled to be loaded in the first tank chamber 107 corresponding to the tank No. 1, and the planned loading amount is 4 kiloliters. is there. Similarly, the tank
Regular gasoline is stored in the second tank chamber 109 corresponding to NO.2 and the third tank chamber 111 corresponding to tank NO.3, respectively, of 4 kiloliters, and light oil is stored in the fourth tank chamber 113 corresponding to tank NO.4. 4 kiloliters, the fifth tank chamber 115 corresponding to the tank No. 5 will be loaded with 2 kiloliters of light oil, and the sixth tank chamber 117 corresponding to the tank No. 6 will be loaded with 2 kiloliters of kerosene. .. In the figure, light indicates light oil, light indicates kerosene, RG indicates regular gasoline, and HG indicates high-octane gasoline.

To write these tank data, for example, the operator inserts the vehicle number card 119 of the tank lorry 15 with the vehicle number 001 into the input device 97 on the day before the scheduled refueling, and stores the tank lorry 15 to be refueled. If the vehicle number is read by the vehicle number reading means 99, the tank configuration of the tank truck 15 is loaded from the ROM 105 onto the RAM 159. Therefore, in such a state, the operator may operate the input device 97 with a key to write the planned oil type and the planned loading amount for each tank chamber. Also, for example, on the day of refueling, the driver of the tank truck 15 inputs the vehicle number card 11 into the input device 97.
When 9 is inserted, the refueling slip 121 is output as a record for storage. The tank data may be written and the refueling slip may be issued at the same time on the day of refueling. In addition, the tank data can be written to all tank trucks to be refueled. In this case, the loading amount is the ROM 10
No input can be made beyond the tank chamber capacity stored in 5.

On the other hand, as shown in FIG. 6, on the input side of the local computer 103, the flow meters 35, 45, 55,
67, a ground connection sensor 123, a loading arm connection sensor 125, an overflow sensor 127, an input information reading means 129, and a vehicle number confirmation means 131, and a cargo handling valve equipped with a valve opening / closing drive device 133 on the output side. 37, 47, 57, 69 and control valves 39, 49,
59, 61, 71, 73, 85, 87, 89, 91 are connected.

The ground connection sensor 123 detects the connection of the ground connector on the tank truck 15 side, and the loading arm connection sensor 125 detects the loading arms 17 ,.
19, 21, 23, 25, 27 and tank chambers 107, 10
The connection with 9, 111, 113, 115, 117 is detected. Although not shown, this loading arm connection sensor 125 is composed of an optical sensor mounted above the drop pipe of each loading arm, and the liquid supply hatch has a loading arm connection sensor 12.
By approaching 5, the light emitted from the optical sensor is reflected by the hatch and the returned light is captured and a signal is output.

Further, the overflow sensor 127 is
Each tank chamber 107, 1 of the tank truck 15 when the oil is shipped
09, 111, 113, 115, 117 are mounted at predetermined positions in the 09, 111, 113, 115, 117 to detect the liquid level of the oil to be loaded and
When the liquid level exceeds the reference value due to a failure such as 7, 47, 57, 69, etc., abnormal supply is detected.

In the vehicle number confirmation means 131, the driver of the tank truck 15 sends the tank truck 15 to the shipping facility 10 on the day of refueling.
The car number card 119 is driven up to 1 and the car number confirmation means 13
1 into the tank truck 1 from the car number card 119
The vehicle number of 5 is confirmed, and the tank data of the tank truck 15 having entered the shipping facility 101 is requested to the host computer 95. Then, the tank configuration and tank data of the tank truck 15 are stored in the storage unit 135 in the local computer 103 from the host computer 95 via the input information reading unit 129.

Next, the structure of the local computer 103 will be described. The local computer 103 includes a ground connection determination means 137, a loading arm connection determination means 139, an overflow sensor operation determination means 141, a cargo handling permission determination means 143, a control means 145. Loading arm connection number determination means 147, and the storage means 1
And 35.

A signal from the ground connection sensor 123 is input to the ground connection judging means 137 to judge whether the ground is connected or not, and the loading arm connection judging means 1 is also connected.
39 determines whether or not the loading arm and the tank chamber are connected based on a signal from the loading arm connection sensor 125, and outputs the result to the loading arm connection number determination means 147. Then, the loading arm connection number determination means 147 determines the number of loading arms connected to the tank chamber based on the signal.

Further, the overflow sensor operation judging means 1
41 indicates each tank chamber 107, 109, 11 of the tank truck 15 based on a signal from the overflow sensor 127.
It is determined whether or not the liquid level of the oil supplied to 1, 113, 115, 117 exceeds the standard.

In the cargo handling permission judging means 143, the number of the loading arms connected to the tank chamber judged by the loading arm connection number judging means 147 from the vehicle number confirmed by the vehicle number confirming means 131, The storage means 1
The number of tank chambers in the tank data of 35 is compared, and when the number of connected loading arms and the number of tank chambers in the tank data match, the cargo handling permission signal is controlled by the control means 1
It is supposed to leave at 45. In this case, when the ground is not connected, the ground connection determining means 137
The cargo handling permission judgment means 143 does not issue the cargo handling permission signal by the signal from the above, and when the overflow sensor operation judgment means 141 inputs a signal indicating an overflow while the oil is being loaded, the command is controlled. The control valve 39 or the like is sent to the means 145 to close it.

Then, when the cargo handling permission signal is issued from the cargo handling permission judgment means 143, the control means 145 aims at the target tank chamber corresponding to the oil type for each tank chamber stored in the storage means 135. Control valves 39, 49, 59, 61, 71, 73, 85, 8 so that the oil type to be supplied is supplied.
The opening / closing of 7, 89, 91 is controlled, and after the opening / closing operation of the control valve 39 and the like, the cargo handling valves 37, 47, 57, 69 are opened / closed respectively. The open / close control program is stored in the control means 145 in advance as data.

For example, each tank chamber 107, 109, 1 of the tank truck 15 is in accordance with the tank data of the RAM 159.
When refueling 11, 113, 115, 117, each cargo handling valve 37, 47, 57, 69 and control valve 39, 49, 5
The open / close control patterns of 9, 61, 71, 73, 85, 87, 89, 91 are as described in the following tables. In addition, in each table, the numeral indicates each symbol in the drawing.

[0031] The flowmeters 35, 45, 55, 67 sequentially measure the flow rates of the oils passing through the lines 33, 43, 53, 65 on which the flowmeters are mounted and send them to the control means 145. When the loading amount stored in the storage means 135 is reached, the predetermined cargo handling valves 37, 47, 57, 69 are closed. In addition, 157 in FIG. 4 is a supply-side storage tank that stores high-octane gasoline.

The present embodiment is constructed in this way, and next, according to the tank data, the tank truck 1 of the vehicle number 001.
The case of refueling No. 5 will be described with reference to the flowcharts of FIGS. 7 and 8.

First, for example, on the day before the refueling schedule, the operator writes the planned oil type and the planned loading amount for each of the plurality of tank lorries scheduled for the next refueling in the RAM 159, so that the vehicle number card 119 of the tank lorry 15 is input device. Insert it into 97,
The vehicle number of each tank truck is read by the vehicle number reading means 99 (step S1). Then, the tank configuration for each vehicle number is loaded from the ROM 105 into the RAM 159 (step S2). If the operator operates the input device 97 in this state, the tank data for each vehicle number (planned) The oil type and the planned loading amount) are written in the RAM 159 (step S3).

Then, on the day of refueling, for example, the driver of the tank truck 15 with the vehicle number 001 inputs the vehicle number card 1 to the input device 97.
When 19 is inserted, the refueling slip 121 is output as a record for storage (step S4). After that, the driver drives the tank truck 15 from the office 93 and transports it to the shipping facility 101 of the oil tank place 13. Then, at the shipping facility 101, the ground connector is connected to a predetermined location, and the tank truck 1
5 is grounded (step S5). Next, the driver inserts the vehicle number card 119 into the vehicle number confirmation means 131 to confirm the vehicle number of his / her tank truck 15 (step S6).
Then, the local computer 103 requests the tank data of the tank truck 15 in the shipping facility 101 from the host computer 95 (step S7), and the input information reading means 129 causes the RAM of the host computer 95 to be stored.
The tank data 159 is stored in the storage unit 135 of the local computer 103 (step S8).

Then, as in the conventional case, a drop pipe is connected to the tip of each loading arm 17, 19, 21, 23, 25, 27, respectively, and the first loading arm is sequentially loaded from the cab 29 side of the tank truck 15. 17, second loading arm 19, ... Each of the sixth loading arm 27 drop pipes is inserted into the first tank chamber 107, the second tank chamber 109, ... Each loading arm is connected to each tank chamber (step S9).

As described above, the loading arm and the tank chamber are connected by the loading arm connection sensor 12
5, the signal is input to the loading arm connection determination means 139 to determine whether or not there is a connection, and then the loading arm connection number determination means 147 calculates the number of loading arms connected to the tank chamber. (Step S10).

In the cargo handling permission judging means 143, the vehicle number confirmed by the vehicle number confirming means 131, that is, the vehicle number 001 of the tank truck 15 is transferred to the tank chamber determined by the loading arm connection number determining means 147. The number of connected loading arms and the number of tank chambers in the tank data of the storage means 135 are compared, and the number of connected loading arms and the number of tank chambers in the tank data are 6 and 6 respectively. Or ground connection determination means 13
Based on the judgment result from 7, it is judged whether or not the ground is connected (step S11).

When it is judged "YES" in step S11, the cargo handling permission judgment means 143 to the control means 14
5, a cargo handling permission signal is issued (step S12), and the control means 145 uses the open / close control pattern based on Table 1 above to set the tank chambers 107, 109, 113, 11 respectively.
7 will be refueled (step S13). still,
In the present embodiment, three times of refueling is required, for example, even when trying to refuel the third tank chamber 111 with regular gasoline at the time of the first refueling, the line 53 is loaded from the line 53 at the confluence with the line lines 53a and 53b. Light oil is flowing to the arm 21, and is brought into the third tank chamber 111 and the fourth tank chamber 1.
This is because it is not possible to refuel 13 at the same time.

The flowmeters 35, 45, 55 and 67 successively measure the flow rates of the oils passing through the lines 33, 43, 53 and 65 and output the signals to the control means 145. 145 is a storage means 135 based on the signal.
When the loading amount stored in is reached, the specified cargo handling valves 37, 4
Although 7, 57 and 69 are closed to complete the first refueling, the overflow sensor 127 is functioning during this refueling (step S14), and if an abnormal signal indicating overflow is input from the overflow sensor operation determination means 141. The control means 145 closes the control valve 39 and the like to stop refueling at the abnormal portion (step S15). If there is no overflow abnormality, the first refueling ends (step S16), and then the second and third refueling starts and stops according to the opening / closing control pattern based on Tables 2 and 3 above. (Step S17).

Even in this case, the overflow sensor 127 is functioning, and when an abnormal signal indicating an overflow is input from the overflow sensor operation determination means 141, the control means 145 closes the control valve 59 and the like. Stop the refueling at the abnormal point.

When all the refueling work is completed, each loading arm 17, 19, 21, 23, 2
5, 27 in the tank chambers 107, 109, 111, 11
3, 115, 117 and the rack connector 11 and the ground connector may be removed (step S).
18).

If it is determined to be "NO" at the step S11, the cargo handling permission judgment means 143 does not give the cargo handling permission, and the cargo handling valve and the control valve are kept closed (step S19). ).

Then, for example, the car number 002 of the next refueling schedule
The tank lorry driver may perform the refueling work according to the tank data through the same steps as the refueling work for the tank lorry 15.

As described above, in this embodiment, first, the loading arms 17, 19, 21, 23, 25 and 27 are connected to the tank chambers 107, 109, 111 and 11 of the tank truck 15.
If all 3,115,117 are connected at the same time, the cargo handling valves 37,47,57,69 and control valves 39,49,5
By the opening / closing control of 9, 61, 71, 73, 85, 87, 89, 91, refueling according to the tank data is performed on the line 33,
43, 53, 65, bypass line 75, branch line 7
Since it can be done via 7, 79, 81, 83, it is possible to connect the loading arm individually installed for each oil type to each tank chamber, load, disconnect, and store on the rack. You no longer need to repeat it often. In addition, according to the present embodiment, the conventional complicated work of connecting the to-be-detected device provided for each hatch and the detector provided for each loading arm to each other is not necessary, which is a conventional feature. Compared to this, the workability of refueling has improved dramatically, and it is possible to refuel automatically according to preset tank data, and it is possible to refuel safely without human error.

Further, according to this embodiment, since the simultaneous loading and unloading of 3 to 4 oil types is possible, the simultaneous loading tank chamber is increased as compared with the conventional case, and there is an advantage that the fuel can be refueled more efficiently and safely. Have.

Of course, the tank configuration stored in the ROM 105 and the tank data written in the RAM 159 are not limited to those in the above embodiment, and the tank chamber of the tank truck is smaller than that of the loading arm. When the load is small, the loading arms may be sequentially connected to the tank chamber from the driver's seat side, and the remaining loading arms may be stored on the rack.

In addition, although the present invention is applied to the top loading method in which the cargo is loaded from the upper portion of the tank truck in the above embodiment, it is needless to say that it is also applicable to a so-called bottom loading method in which the cargo is loaded from the lower portion of the tank truck. It

[0048]

As described above, according to the present invention, a loading arm individually installed for each oil type as in the prior art is connected to each tank chamber, loaded and unloaded, and then stored on a rack. It is not necessary to frequently repeat the work on the tank truck with the risk of causing such a problem, and according to the present invention, the detection tool provided for each hatch and the detector provided for each loading arm are respectively connected. Combined with the elimination of the need for the conventional complicated work, the workability of refueling is dramatically improved compared to the conventional one, and it is possible to refuel automatically according to preset tank data, without human error. It has become possible to refuel safely.

Further, according to the present invention, since 3 to 4 oil types can be simultaneously loaded, the simultaneous loading tank chamber is increased as compared with the conventional case, and there is an advantage that the oil can be refueled more efficiently.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of an oil tank station equipped with a liquid supply device according to an embodiment of the present invention.

FIG. 2 is an enlarged perspective view of each line.

FIG. 3 is an overall configuration diagram of a host computer side of a liquid supply device according to an embodiment of the present invention.

FIG. 4 is an overall configuration diagram of a liquid supply device according to an embodiment of the present invention on a local computer side.

FIG. 5 is a block diagram of a host computer that controls the liquid supply device.

FIG. 6 is a block diagram of a local computer that controls the liquid supply device.

FIG. 7 is a flowchart showing a procedure of control by the control means.

FIG. 8 is a flowchart showing a procedure of control by the control means.

FIG. 9 is a schematic view showing a conventional liquid supply device and liquid supply method.

[Explanation of symbols]

11 racks 15 tank trucks 17, 19, 21, 23, 25, 27 loading arms 33, 43, 53, 65 lines 35, 45, 55, 67 flow meters 37, 47, 57, 69 cargo handling valves 39, 49, 59, 61 , 71, 73, 85, 87, 8
9, 91 Control valve 75 Bypass line 77, 79, 81, 83 Branch line 95 Host computer 103 Local computer 107 First tank chamber 109 Second tank chamber 111 Third tank chamber 113 Fourth tank chamber 115 Fifth tank chamber 117th 6 tank room

Claims (1)

Claims: 1. The maximum number of tank chambers held by one tank lorry among a plurality of tank lorries planned to be loaded with oil on the supply side storage tank side containing a plurality of oil types. The same number as the number of loading arms installed, the flowmeters and cargo handling valves mounted on the line between each supply side storage tank and each loading arm, and the line between each loading arm and each cargo handling valve A control valve that opens and closes the line to each loading arm, and a bypass line that is connected between the control valve of each line and the cargo handling valve via a branch line and that connects each line, and that is installed for each branch line A control valve for opening and closing the branch line, and an input for inputting tank data of the type of oil to be loaded and the loading amount according to the tank chamber arrangement for each vehicle number of the tank truck to be loaded with oil A step, a vehicle number of each tank lorry to be loaded with oil, a tank chamber arrangement of each tank lorry, a tank configuration such as a tank chamber capacity, and a storage means for storing the tank data from the input means, a loading arm and a tank chamber A loading arm connection number determination means for determining the number of connections of the vehicle, and a vehicle number confirmation means for confirming the vehicle number of the tank truck to be loaded,
From the vehicle number confirmed by the vehicle number confirmation means, the number of connection of the loading arm to the tank chamber determined by the number-of-connections determination means of the loading arm and the number of tank chambers of the tank data of the storage means are compared and connected. When the number of loading arms and the number of tank chambers in the tank data match, the cargo handling permission judgment means for issuing a cargo handling permission signal and the signal from the cargo handling permission judgment means are input to the target tank chamber. A liquid supply device comprising: the above-mentioned cargo handling valves and control means for controlling the opening and closing of the control valves so that the target oil is supplied.