JPH054695A - Oil supply apparatus - Google Patents

Abstract

PURPOSE:To improve operating efficiency with respect to performance of oil supply and gas purge by performing gas purge of a necessary tank chamber when gas purge is required and supplying required oil to a target tank after gas purge is completed. CONSTITUTION:At the same time as determination of a load permission determination means, an identification means compares oil types to be loaded into respective tank chambers 105, 107,...115 with previously loaded oil types based on tank data of current loading of a tank trailer 5 and previous tank data from a storage means, and when gas purge is determined to be necessary, the identification means sends a gas purge instruction signal to a control means. When the gas purge instruction signal is input from the identification means, the control means purges gas from a desired tank chamber by a gas purge device 89 before controlling opening/closing of each load valve 27 and 21 control valve 29. Then respective load valves 27 and the control valve 29 are opened/ closed so as to supply required oil type to target tank chambers 105 to 115.

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 supplying oil of different oil types to a tank truck at an oil tank or the like, and more particularly, to improving workability for performing a fueling operation and a gas purging operation, and a gas purging operation. The present invention relates to a liquid supply device that is completely implemented.

[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 refueling the rooms individually, they are transported to demand destinations such as gas stations, and the oil is unloaded to underground tanks, which are storage tanks on the receiving side of the demand destinations.

When refueling a tank room of a tank truck, if the oil type to be loaded in the tank room in the last time is different from the oil type to be loaded, a gas purge is performed prior to refueling. It is necessary to remove the gas in the tank chamber. This is because, for example, when kerosene is supplied next to gasoline, the gasoline vapor is diluted and it becomes easy to ignite, and ignition may occur due to sparks such as static electricity.

Therefore, conventionally, the gasoline is divided into a group of regular gasoline and high-octane gasoline and a group of kerosene and light oil, and gas purging is not performed in each group. When the groups are different, the gas purging of the tank chamber was performed using the gas purging device disclosed in Japanese Patent Publication No. 46395/1989 before refueling.

[0005]

However, many conventional gas purging devices such as the gas purging device disclosed in Japanese Patent Publication No. 1-46395 are installed in a place away from the refueling area in the oil tank. , It was necessary to move the tank truck to the gas purging area for the purpose of gas purging.

Further, even when the gas purging device is installed in the refueling area, conventionally, the loading arm for gas purging and the loading arm for refueling are different,
The work of refueling and gas purging was complicated and there was a problem in workability.

The present invention has been devised in view of the above circumstances, and it is an object of the present invention to provide a liquid supply device which is improved in workability for refueling work and gas purging when refueling a tank chamber of a tank truck. To aim.

[0008]

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. ,
A gas purge line connected to the bypass line,
Gas purging means consisting of a blower mounted on the gas purging line and a control valve mounted on the gas purging line on the upstream side of the blower, and the oil to be loaded according to the tank chamber arrangement for each vehicle number of the tank truck to be loaded with oil. Input means for inputting tank data of seed and loading amount, vehicle number of each tank lorry to be loaded with oil, tank chamber arrangement of each tank lorry, tank configuration such as tank chamber capacity, and loading schedule from the above input means Storage means for storing the tank data and the previous tank data for each tank room, a loading arm connection number judgment means for judging the number of connections between the loading arm and the tank room, and a vehicle for checking the vehicle number of the tank truck to be loaded The number determined by the loading arm connection number determination means from the vehicle number confirmation means and the vehicle number confirmed by the vehicle number confirmation means. The number of loading arms connected to the storage chamber is compared with the number of tank chambers in the tank data of the storage means, and when the number of connected loading arms and the number of tank chambers in the tank data match, cargo handling permission is granted. The cargo handling permission determination means that issues a signal and the oil type scheduled to be loaded in each tank chamber based on the above two tank data and the previous loaded oil type in each tank chamber are compared, and the gas purge command signal is sent when a gas purge is required. By inputting signals from the discriminating means, the cargo handling permission judging means and the discriminating means, the control valve on the gas purge line is controlled to be opened to drive the blower, and the bypass line of the tank chamber where gas purging is required is reached. The control valve on the line is controlled to be opened to perform the gas purging, and after the gas purging is completed, the target oil is supplied to the target tank chamber. And control means for opening and closing control of the cargo handling valve and control valve, in which with a.

[0009]

According to the present invention, when one loading arm is connected to the tank chamber addressed to one, the number of loading arms connected is determined by the loading arm connection number determining means, and the result is passed to the cargo handling permission determining means. Sent. Then, in the cargo handling permission judging means, from the vehicle number confirmed by the vehicle number confirming means, the number of the loading arm connections to the tank chamber determined by the loading arm connection number determining means and the tank in the tank data to be loaded this time. The number of chambers is compared to determine whether the number of connected loading arms matches the number of tank chambers in the tank data.

When the numbers match, a cargo handling permission signal is issued from the cargo handling permission judgment 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.

Simultaneously with the above determination by the cargo handling permission determining means, the determining means also determines the type of oil to be loaded in each tank chamber from the storage means based on the tank data for the current loading of the tank truck and the previous tank data. And the previous cargo oil type are compared to determine whether or not gas purging is necessary.
When it is determined that the gas purge is necessary, the gas purge command signal is issued to the control means.

When the cargo handling permission signal is issued from the cargo handling permission judgment means, the control means supplies the target oil type to the target tank chamber from the tank data for each tank chamber stored in the storage means. Although the cargo handling valves and control valves are controlled to be opened and closed as described above, when a gas purge command signal is input from the determination means, the gas purging device performs gas purging of a desired tank chamber prior to such control.

After completion of the gas purging, the control means controls the opening / closing of each cargo handling valve and the control valve so that the target oil type is supplied to the target tank chamber from the tank data stored in the storage means. And the refueling work will be done.

[0014]

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, reference numeral 1 is a rack provided on the premises of an oil tank station 3, and a rack is generally the largest in the tank truck. 6 loading arms 7, which is the same as the number of tanks in the 20-kilometer tank truck 5
9, 11, 13, 15, and 17 are installed, and the loading arms 7, 9, 11, 13, 15, and 17 are the first loading arm and the second loading arm in order from the operator cab 19 side of the tank truck 5. , ... Numbers are attached such as the sixth loading arm. Incidentally, each loading arm 7, 9, 11, 13, 15, 17
Are structurally identical to known loading arms.

Then, as shown in FIG. 1 and FIG.
The loading arm 7 includes a pipeline 21 and a line 2 from a supply-side storage tank containing high-octane gasoline.
3, the flow meter 25, the cargo handling valve 27, and the control valve 29 are sequentially installed on the line 23 from the upstream side. Similarly, the second loading arm 9 is connected to the pipeline 31 from the supply side storage tank containing the regular gasoline by the line 33, and on the line 33, the flow meter 35, the cargo handling valve 37, and the control valve. 39 are mounted in order from the upstream side.

Further, the third and fourth loading arms 11,
13 is connected to a pipeline 41 from a supply-side storage tank that stores light oil via a line 43 whose downstream side is bifurcated, and on this line 43, a flow meter 45 and a flow meter 45 are sequentially provided from the upstream side. The cargo handling valve 47, and the line 43a to the third loading arm 11 which is bifurcated, and the fourth
Control valves 49 and 51 are attached to the line 43b to the loading arm 13 respectively. Similarly, the fifth and sixth
The loading arms 15 and 17 are connected to a pipeline 53 from a supply-side storage tank that stores kerosene via a line 55 that is bifurcated on the downstream side, and also on the line 55 in order from the upstream side. Flowmeter 57 and cargo handling valve 59
But, the fifth loading arm 15 split into two
To the line 55a to the sixth loading arm 17 and control lines 61 and 63 are attached to the line 55b to the sixth loading arm 17, respectively.

The lines 23, 33, 43, and
55 has a structure in which they communicate with each other via a bypass line 65. That is, each line 23, 33, 43, 5
A bypass line 65 is connected to the downstream side of the cargo handling valves 27, 37, 47, 59 mounted on the vehicle 5 via branch lines 67, 69, 71, 73, respectively, and each branch line 67, 69, 71 and 73 have control valves 75 and 7 respectively.
7 79 81 is installed. Then, for example, in order to supply high-octane gasoline to the first loading arm 7, if the control valve 29 is opened, the control valve 75 is closed, and the cargo handling valve 27 is opened, the pipeline 21 to the line 23 are connected. The high-octane gasoline is supplied to the first loading arm 7 via the control valve 75, 77, 3 to supply the high-octane gasoline to the second loading arm 9.
9 is opened, and the cargo handling valve 37 and the control valves 29, 79,
When the cargo handling valve 27 is opened with 81 closed, high-octane gasoline is supplied to the second loading arm 9 from the pipeline 21 through the line 23 → branch line 67 → bypass line 65 → branch line 69 → line 33. It has become so. Further, as shown in the figure, a gas purge line 83 is connected to the bypass line 65,
A gas purging device 89 including a control valve 85 and a blower 87 is mounted on the gas purging line 83. In addition, the discharge side 83a of the gas purge line 83 extends to a safe place and is open, or is connected to a gas processing device (not shown). Then, for example, the control valves 29, 7
5,85 are opened, the cargo handling valve 27 and the control valves 77, 79, 8
1 is closed and the blower 87 is driven, the gas purging of the tank chamber to which the first loading arm 7 is connected can be performed.

3 and 4 show the entire structure of the liquid supply device according to this embodiment.
A host computer 93 that manages the entire
The host computer 93 has an input device 95 as its terminal device, and the input device 95 is provided with a vehicle number reading means 97 as shown in FIG. Further, as shown in FIG. 4, the shipping facility having the local computer 101 is installed in the shipping facility 99 in the oil tank location 3.

ROM 10 of the host computer 93
In 3, a tank configuration for each vehicle number of the tank truck is stored. For example, the tank truck 5 of the vehicle number 001 has six tank chambers, and the first tank chamber 105, the second tank chamber 107, the third tank chamber 109, and the fourth tank chamber to which the tank numbers are attached from the driver's cab 19 side. The capacity of each 111 is 4 kiloliters, and the fifth tank chamber 113 and the sixth tank chamber 11
The data that the capacity of 5 is 2 kiloliters is stored.

Further, the RAM 15 of the host computer 93
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 in 7 for each tank truck.

For example, in the case of the tank truck 5 of vehicle number 001, high-octane gasoline is scheduled to be loaded in the first tank chamber 105 corresponding to the tank No. 1, and the planned loading amount is 4 kiloliters. is there. Similarly, tank N
Regular gasoline is stored in the second tank chamber 107 corresponding to O.2 and the third tank chamber 109 corresponding to the tank NO.3, respectively, and 4 kg of regular gasoline, and light oil is stored in the fourth tank chamber 111 corresponding to the tank NO.4. 4 kiloliters, the fifth tank chamber 113 corresponding to the tank No. 5 will be loaded with 2 kiloliters of light oil, and the sixth tank chamber 115 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 117 with the vehicle number 001 into the input device 95 on the day before the scheduled refueling to determine the vehicle number of the tank truck 5 to be refueled. When read by the vehicle number reading means 97, the tank configuration of the tank truck 5 from the ROM 103 is R
It is designed to be captured on the AM 157. Therefore, in such a state, the operator may operate the input device 95 with a key to write the planned oil type and the planned loading amount for each tank chamber. Then, for example, when the driver of the tank truck 5 inserts the vehicle number card 117 into the input device 95 on the day of refueling,
The refueling slip 119 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 the tank trucks to be refueled. In this case, the loading amount exceeds the tank chamber capacity stored in the ROM 103. You can't.

Although not shown, the host computer 93
The other RAM stores the tank data written at the time of the previous refueling for each vehicle number.
It is displayed on M157 at the same time.

On the other hand, as shown in FIG. 6, on the input side of the local computer 101, the flowmeters 25, 35, 45,
57 and ground connection sensor 121, loading arm connection sensor 123, overflow sensor 125, input /
Memory information reading means 127 and vehicle number confirmation means 129
And a valve opening / closing drive device 131 on the output side.
With cargo handling valves 27, 37, 47, 59 and control valve 29,
39, 49, 51, 61, 63, 75, 77, 79, 8
1, the control valve 85 of the gas purging device 89, and the blower 87 are connected.

The ground connection sensor 121 detects the connection of the ground connector on the tank truck 5 side, and the loading arm connection sensor 123 detects the respective loading arms 7, 9 ,.
11, 13, 15, 17 and tank chambers 105, 107, 1
The presence or absence of connection with 09, 111, 113, 115 is detected. Although not shown, this loading arm connection sensor 123 is composed of an optical sensor attached above the drop pipe of each loading arm, and the liquid supply hatch has a loading arm connection sensor 12.
By approaching 3, 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 125 is
Each tank chamber 105, 10 of the tank truck 5 when the oil is shipped
7, 109, 111, 113, 115 are mounted at predetermined positions inside the container to detect the liquid level of oil to be loaded, and the cargo handling valve 27,
When the liquid level exceeds the reference value due to a failure of 37, 47, 59, etc., abnormal supply is detected.

When the driver of the tank truck 5 drives the tank truck 5 to the shipping facility 99 on the day of refueling and inserts the vehicle number card 117 into the vehicle number checking means 129, the vehicle number confirming means 129 causes the tank truck 5 to move to the tank truck. After confirming the vehicle number of No. 5, the tank data of the tank truck 5 having entered the shipping facility 99 is requested to the host computer 93. Then, via the input / stored information reading means 127 from the host computer 93, the tank configuration of the tank truck 5, the tank data to be loaded this time, and the previous tank data of the tank truck 5 are stored in the local computer 101.
It is adapted to be stored in the internal storage means 133.

Next, the configuration of the local computer 101 will be described. The local computer 101 includes a ground connection determination means 135, a loading arm connection determination means 137, an overflow sensor operation determination means 139, a cargo handling permission determination means 141, a determination means 143. Control means 14
5, the loading arm connection number determination means 147, and the storage means 133.

The ground connection determining means 135 receives a signal from the ground connection sensor 121 to determine whether or not the ground is connected, and the loading arm connection determining means 1
37 determines whether or not the loading arm is connected to the tank chamber based on a signal from the loading arm connection sensor 123, 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
Reference numeral 39 denotes each tank chamber 105, 107, 10 of the tank truck 5 based on a signal from the overflow sensor 125.
It is determined whether or not the liquid level of the oil supplied to 9, 111, 113, 115 exceeds the standard.

In the cargo handling permission judgment means 141, the number of connection of the loading arm to the tank chamber, which is judged by the loading arm connection number judgment means 147 from the car number confirmed by the car number confirmation means 129, is stored. The number of tank chambers of the tank data to be loaded this time in the means 133 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. It is supposed to be emitted at 145. When the ground is not connected, the ground connection determining means 1
The signal from 35 does not cause the cargo handling permission judgment means 141 to issue a cargo handling permission signal. When an overflow signal is input from the overflow sensor operation determination means 139 while oil is being loaded, a command is sent to the control means 145 to close the control valve 29 and the like.

Simultaneously with the above determination by the cargo handling permission determining means 141, the determining means 143 stores the loading schedule for each tank chamber in the tank truck 5 based on the tank data for the current loading and the previous tank data from the storage means 133. When the type of oil is compared with the previous type of cargo oil and it is determined that gas purging is necessary, a gas purging command signal is issued to the control means 145. In this case, also in the present embodiment, as in the conventional case, it is divided into a group of regular gasoline and high-octane gasoline and a group of kerosene and diesel oil, for example, gas purging is required when the groups are different such that kerosene is refueled after gasoline. And the determination means 14
3 issues a gas purge command signal.

Then, when the cargo handling permission signal is issued from the cargo handling permission judgment means 141, the control means 145 uses the tank data for each tank chamber stored in the storage means 133 to the target oil chamber. Control valves 29, 39, 49, 51, 61, 63, 7 so that
5,77,79,81 and cargo handling valves 27,37,47,5
The opening / closing of the tank 9 is controlled, but when a gas purge command signal is input from the determination unit 143, a desired gas purging of the tank chamber is performed prior to such control.

For example, in the tank data to be loaded at this time of the tank truck 5 of the vehicle number 001, the sixth tank chamber 11
2 liters of kerosene is scheduled for 5. However, from the previous tank data, when high-octane gasoline is loaded in the sixth tank chamber 115, it is dangerous to directly feed kerosene to the sixth tank chamber 115 without performing gas purging.

Therefore, the control means 145 opens the control valves 63 and 81 and the control valve 85 on the gas purge line 83 and drives the blower 87 to drive the sixth loading arm 17 inserted into the sixth tank chamber 115. To 6th
The gasoline vapor in the tank chamber 115 is discharged to the outside via the line 55b → the branch line 73 → the gas purge line 83 → the discharge side 83a of the gas purge line 83. In addition, this gas purging operation is performed by each control valve 29, 3
9,49,51,61,63,75,77,79,8
By controlling the opening and closing of 1, 85, gas purging of a plurality of tank chambers can be performed at the same time.

When the preset required time has elapsed, the control means 145 receives the gas purge completion signal, and the tank data stored in the storage means 133 is transferred to the target tank chamber. Control valves 29, 39, 49, 51, 61, 63, 75,
The opening / closing of 77, 79, 81 is controlled, and after the opening / closing operation of the control valve 29 and the like, the cargo handling valves 27, 37, 47, 59 are opened / closed respectively.

For example, each tank chamber 105, 107, 10 of the tank truck 5 is in accordance with the tank data of the RAM 157.
When refueling 9, 111, 113, 115, each cargo handling valve 27, 37, 47, 59 and control valve 29, 39, 49,
The open / close control patterns of 51, 61, 63, 75, 77, 79, 81 are as described in the following tables. In each table,
The numbers indicate the symbols in the figure.

[0038] The flowmeters 25, 35, 45, 57 sequentially measure the flow rates of the oils passing through the lines 23, 33, 43, 55 to which the respective flowmeters are attached and send them to the control means 145. When the loading amount stored in the storage unit 133 is reached, the predetermined cargo handling valves 27, 37, 47, 59 are closed and the refueling is completed. Other, 1 in FIG.
Reference numeral 49 is a supply-side storage tank that stores high-octane gasoline.

The liquid supply device according to the present embodiment is constructed in this way, and next, the case of refueling the tank truck 5 of the vehicle number 001 according to the tank data will be described with reference to the flow charts of FIGS. 7 to 9.

First, for example, on the day before the scheduled refueling, the operator writes in the RAM 157 the planned oil type and the planned loading amount for each of the plurality of tank lorries scheduled for the next day's refueling. The vehicle number of each tank truck is read by the vehicle number reading means 97 (step S1). Then, the tank configuration for each vehicle number is fetched from the ROM 103 into the RAM 157 (step S2). Therefore, if the operator operates the input device 95 in such a state, the tank data for each vehicle number (planned) The oil type and the planned loading amount) are written in the RAM 157 (step S3).

Then, on the day of refueling, for example, the driver of the tank truck 5 with the vehicle number 001 inputs the vehicle number card 11 to the input device 95.
When 7 is inserted, the refueling slip 119 is output as a record for storage (step S4). After that, the driver drives the tank lorry 5 from the office 91 to transport it to the shipping facility 99 of the oil tank station 3, and connects the ground connector to a predetermined location in the shipping facility 99 to ground the tank lorry 5 (step S5). .. Then, the driver inserts the vehicle number card 117 into the vehicle number confirmation means 129 and confirms the vehicle number of his / her tank lorry 5 (step S6), and the local computer 101 causes the local lorry 101 of the tank lorry 5 at the shipping facility 99 this time. The tank data to be loaded and the previous tank data are requested to the host computer 93 (step S7), and each tank data in the host computer 93 is stored in the storage unit 133 of the local computer 101 by the input / stored information reading unit 127. It is stored (step S
8).

Then, similarly to the conventional case, drop pipes are connected to the tips of the loading arms 7, 9, 11, 13, 15, and 17, respectively, and the cab 1 of the tank truck 5 is connected.
In order from the 9 side, the drop pipes of the first loading arm 7, the second loading arm 9, ..., The sixth loading arm 17 are connected to the first tank chamber 105, the second tank chamber 107 ,. One of the loading arms is inserted into each tank, and 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
3, the signal is input to the loading arm connection determination means 137 to determine the presence / absence of connection, and then the loading arm connection number determination means 147 calculates the number of loading arms connected to the tank chamber. (Step S10).

Then, in the cargo handling permission judging means 141, the vehicle number confirmed by the vehicle number confirming means 129, that is, the vehicle number 001 of the tank truck 5 to the tank chamber judged 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 unit 133 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 135
Based on the result of the judgment from the above, 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 141 to the control means 14
A cargo handling permission signal is issued to 5 (step S12). On the other hand, simultaneously with the above determination by the cargo handling permission determination means 141,
The determining unit 143 compares the planned loading oil type and the previous loading oil type in each tank chamber based on the tank loading current tank data of the tank truck 5 and the previous loading tank data stored in the storage unit 133, as described above. Thus, for example, it is determined whether or not different types of oil are to be refueled, such as refueling kerosene this time to the tank room where gasoline was loaded last time (step S13).

When it is determined in step S13 that gas purging is necessary, the process proceeds to step S14, and gas purging is first performed prior to refueling work. If the above example is repeated, for example, in the tank data of the tank truck 5 with the vehicle number 001 scheduled to be loaded this time, the sixth tank chamber 11
2 liters of kerosene is scheduled for 5. However, from the previous tank data, when high-octane gasoline is loaded in the sixth tank chamber 115, it is dangerous to directly feed kerosene to the sixth tank chamber 115 without performing gas purging.

Therefore, the control means 145 opens the control valves 63 and 81 and the control valve 85 on the gas purge line 83, drives the blower 87, and drives the sixth loading arm 17 inserted into the sixth tank chamber 115. To 6th
The gasoline vapor in the tank chamber 115 is discharged to the outside through the line 55b → the branch line 73 → the gas purge line 83 → the discharge side 83a of the gas purge line 83. In addition, this gas purging work is performed when the gas purging is required also in the other tank chambers, if the control valves 29, 39, 4 are used.
9, 51, 61, 63, 75, 77, 79, 81, 85
The gas purging may be carried out simultaneously by controlling the opening and closing.

When the gas purging is completed after a predetermined time has elapsed, or when it is determined in step S13 that the gas purging is unnecessary, the control means 145 then controls the opening / closing based on Table 1 above. Depending on the pattern, the tank chambers 105, 107, 111, 115 are refueled (step S15). In the present embodiment, it is necessary to refuel three times. For example, even when trying to refuel regular gasoline to the third tank chamber 109 at the time of the first refueling, the line 43 is formed at the confluence with the line lines 43a and 43b. This is because the light oil flows from to the fourth loading arm 13 and the oil cannot be supplied to the third tank chamber 109 and the fourth tank chamber 111 at the same time.

The flowmeters 25, 35, 45, 57 successively measure the flow rates of the oils passing through the lines 23, 33, 43, 55 and output the signals to the control means 145. 145 is a storage means 133 based on the signal
When the current loading amount stored in is reached, the specified cargo handling valve 2
Although 7, 37, 47, 59 are closed to finish the first refueling, the overflow sensor 125 is functioning during this refueling (step S16), and the overflow sensor operation determining means 139 gives an abnormal signal indicating that the overflow has occurred. When input, the control means 145 closes the cargo handling valve 27, the control valve 29, etc., and stops the refueling of the abnormal portion (step S17). If there is no overflow abnormality, the first refueling ends (step S18), and then the second and third refueling starts and ends in Tables 2 and 3 above.
The opening / closing control pattern is based on (step S19).

Even in this case, the overflow sensor 125 is functioning, and when an abnormal signal indicating an overflow is input from the overflow sensor operation determination means 139, the control means 145 closes the control valve 49 and the like. Stop the refueling at the abnormal point.

When all the refueling work is completed, each loading arm 7, 9, 11, 13, 15,
17 for each tank chamber 105, 107, 109, 111, 1
Removed from 13,115 and stored on the rack 1,
The ground connector may be removed (step S20).

When it is determined to be "NO" in step S11, the cargo handling permission judgment means 141 does not give the cargo handling permission, and the cargo handling valve and the control valve are kept closed (step S21). ).

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 process as the refueling work for the tank lorry 5.

As described above, in this embodiment, first, the loading arms 7, 9, 11, 13, 15, 17 are connected to the tank chambers 105, 107, 109, 1 of the tank truck 5 for one tank.
If you connect to all 11,113,115 at the same time,
The cargo handling valves 27, 37, 47, 59 and the control valves 29, 39, 49, 51, 61, 63, 75, 7 by the control means 145.
Refueling according to the tank data can be performed through the lines 23, 33, 43, 55, the bypass line 65, and the branch lines 67, 69, 71, 73 by the opening / closing control of 7, 79, 81. It was no longer necessary to frequently repeat the work of connecting the loading arm installed individually to each tank chamber, loading, unloading, and storing it on the rack.

In addition, according to the present embodiment, it is also possible to eliminate the need for the conventional complicated work of connecting the detection tool provided for each hatch and the detector provided for each loading arm. The workability of refueling is dramatically improved compared to the conventional one, and it is possible to refuel automatically according to preset tank data, and it is possible to safely refuel without human error. Further, according to the present embodiment, since it is possible to carry out simultaneous cargo handling of 3 to 4 types of oil, there is an advantage that the simultaneous loading tank chambers are increased and the fuel can be refueled more efficiently than in the conventional case.

Further, according to this embodiment, first, the loading arms 7, 9, 11, 13, 15, 17 are set to the tank chambers 105, 107, 109, 11 of the tank lorry 5 addressed to one.
If all 1, 113, 115 are connected at the same time, the control valves 29, 39, 49, 5 by the control means 145 will be described.
1, 61, 63, 75, 77, 79, 81 and the control valve 85 on the gas purge line 83 can be opened and closed to purge the gas in the tank chambers 105, 107, 109, 111, 113, 115. There is no need to move the tank truck for the purpose of gas purging from the refueling area in the oil tank to the gas purging area.
Further, as compared with the conventional example in which the gas purging device is installed in the refueling area, it is not necessary to separately operate the loading arm for gas purging and the loading arm for refueling as in the conventional case.

Therefore, according to this embodiment, each tank chamber 105, 107, 109, 111, 11 of the tank truck 5 is
When refueling 3,115, work efficiency for refueling work and gas purging was improved compared to the conventional case.

Needless to say, the tank configuration stored in the ROM 103 and the tank data written in the RAM 157 are not limited to those in the above-mentioned embodiment, and the tank chamber of the tank truck compared to 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 system in which the cargo is loaded from the upper portion of the tank truck in the above embodiment, it is needless to say that the present invention is also applicable to a so-called bottom loading system in which the cargo is loaded from the lower portion of the tank truck.

Further, in the above-mentioned embodiment, the optical sensor is used as the sensor for connecting the loading arm and the tank chamber. However, when the refueling hatch approaches, a change in the electrostatic capacity or a change in the magnetic field is captured to output a signal. A switch or the like may be used.

In the above embodiment, the blower 87 sucks gasoline vapor and the like and discharges it to the outside. However, N ₂ gas is supplied to the tank chambers 105, 107, 109, 111, 113, 115.
It may be injected into the inside, and even with such a structure, the intended purpose can be achieved as in the above-mentioned embodiment.

[0062]

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 simultaneous loading and unloading of three to four oil types is possible, there is an advantage that the number of simultaneous loading tank chambers is increased as compared with the prior art, and more efficient refueling is possible. Further, according to the present invention, if the loading arm is first connected to all the tank chambers of the tank lorry for one at the same time, the gas purging of the tank chamber can be performed by the control of the gas purging device. It is not necessary to move the tank truck to the gas purging area away from the area for the purpose of gas purging, and even compared to the conventional example in which the gas purging device is installed in the lubrication area, the loading arm for the gas purging and the lubrication as in the conventional This eliminates the need to separately operate the loading arm for the tank, and as a result, the workability for refueling and gas purging when refueling the tank truck has been improved.

[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 flowchart showing a procedure of control by the control means.

[Explanation of symbols]

1 Rack 3 Oil Tank Station 5 Tank Truck 7 First Loading Arm 9 Second Loading Arm 11 Third Loading Arm 13 Fourth Loading Arm 15 Fifth Loading Arm 17 Sixth Loading Arm 23, 33, 43, 55 Lines 25, 35, 45 , 57 Flow meter 27, 37, 47, 59 Cargo handling valve 29, 39, 49, 51, 61, 63, 75, 77, 7
9, 81, 85 Control valve 65 Bypass line 67, 69, 71, 73 Branch line 83 Gas purge line 87 Blower 89 Gas purge device 93 Host computer 101 Local computer 105 First tank chamber 107 Second tank chamber 109 Third tank chamber 111 No. 4th tank room 113 5th tank room 115 6th 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 Control valve for opening and closing the branch line, a gas purge line connected to the bypass line, a blower mounted on the gas purge line, and a gas on the upstream side of the blower. Gas purge means consisting of a control valve mounted on the charge line, input means for inputting tank data of the type of oil to be loaded and loading amount according to the tank chamber arrangement for each vehicle number of the tank lorry to be loaded with oil, and an oil Storage means for storing the vehicle number of each tank lorry to be loaded, the tank configuration of each tank lorry, tank configuration such as tank chamber capacity, tank data to be loaded from the input means, and previous tank data for each tank lorry From the vehicle number confirmed by the loading arm connection number determination means for determining the number of connections between the loading arm and the tank chamber, the vehicle number confirmation means for confirming the vehicle number of the tank truck to be loaded, and the vehicle number confirmed by the vehicle number confirmation means, The number of connections of the loading arm to the tank chamber determined by the loading arm connection number determination means and the tank data of the storage means Comparing the number of tank chambers, when the number of connected loading arms and the number of tank chambers in the tank data match, cargo handling permission determination means for issuing a cargo handling permission signal, and each tank based on the above two tank data Input the signal from the judgment means that compares the oil type scheduled to be loaded in the room with the previous cargo oil type in each tank room and issues a gas purge command signal when gas purging is required, and the cargo handling permission judgment means and the judgment means. Then, the blower is driven by controlling the opening of the control valve on the gas purging line, and the gas purging is performed by controlling the opening of the control valve on the line reaching the bypass line of the tank chamber requiring the gas purging, After completion of the gas purging, a control means for controlling opening / closing of each of the cargo handling valve and the control valve is provided so that the target oil is supplied to the target tank chamber. Liquid apparatus.