JP2971559B2 - Shipping system - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shipping system, and more particularly, to a shipping system configured to safely perform an operation of shipping an oil liquid to a tank truck.

2. Description of the Related Art For example, in a shipping system of an oil depot for shipping an oil liquid, when a tank truck arrives at a shipping stage,
The car number card of the tank truck is inserted into the card reader, the car number data is read, and the reservation data corresponding to the car number data is output to the shipping control device at the shipping stage.
Then, a hatch card provided for each hatch of the tank is inserted into a card reader of the loading arm, and the hatch capacity is read. Then, after connecting the grounding device to the tank truck, the operator inserts the loading arm into the filler port of the hatch. Subsequently, if the loading amount set by the operator, the oil type of the loading arm, the reservation data, and the hatch capacity match, and the earth interlock, loading arm interlock, etc. have been completed, a shipment permission signal is output and the shipment is completed. The oil pump is shipped to the tank truck by starting the stage pump and opening the metering valve.

Problems to be Solved by the Invention However, in the conventional shipping system, various interlocks are activated only at the time of starting shipment of the tank lorry to the hatch. A return operation and a removal operation of the grounding device are performed. However, in the past, the work after the end of shipment was left to the judgment of the worker,
There is a possibility that the worker may leave the tank lorry vehicle without noticing that the operator has forgotten to pull out the loading arm from the hatch filler port after the shipment, or that he forgot to remove the grounding device from the tank lorry vehicle. In this case, there is a possibility that the loading arm is damaged and the residual oil liquid in the loading arm flows out, or the grounding device is damaged and the next shipping operation cannot be performed.

Therefore, an object of the present invention is to provide a shipping system that solves the above-mentioned problems.

Means for Solving the Problems The present invention provides a shipping system for shipping an oil liquid to a tank of a tank lorry vehicle, wherein the oil supply device is provided in front of a stop position of the tank lorry vehicle so as to obstruct the course of the tank lorry vehicle by supplying a working fluid. A shut-off means protruding forward of the tank truck, supplying a working fluid to the shut-off means at the time of starting shipment of the oil liquid, and discharging the working fluid of the shut-off means at the end of the shipping operation to put the shut-off means in a standby state Means for permitting the tank truck to exit.

The tank lorry cannot leave the vehicle by the blocking means provided in front of the stop position until the shipping operation to the tank is completed, and when the shipping operation is completed, the departure prevention by the blocking means is released. Therefore, it is possible to prevent the tank truck from erroneously leaving during the shipment of the oil liquid, or to prevent the driver from forgetting to load the oil liquid to be loaded into the tank. Further, the shut-off means is configured to prevent the tank truck from leaving by supplying the working fluid, which is advantageous in terms of safety at an oil depot that handles the oil liquid.

Embodiment FIG. 1 shows an oil depot to which an embodiment of a shipping system according to the present invention is applied. FIG. 2 is a schematic configuration diagram of the oil tank and the shipping stage.

In both figures, a shipping system 1 provided at an oil depot carries out fixed quantity shipment of oil liquid when a tank truck 2 arrives at any of a plurality of shipping stages 3, 4, and 5. Each shipping stage 3,4,5
Are provided with six loading arms 3a, 4a, 5a, respectively, and each of the shipping stages 3, 4, 5 is divided into a lane A and a lane B with a dashed line as a boundary. The loading arms 3a, 4a, 5a located on the boundary line can be used in either of the lanes A, B by rotating. Therefore, lanes A and B on one side can be shipped from a total of four shipping points.

In front of the tank lorry vehicle stop position of each lane A, B of each of the shipping stages 3, 4, 5, a blocking device 21 for preventing the tank lorry vehicle 2 from leaving before the end of the shipping work is installed. This terminating the shipment operation means that all the shipments to the tank truck 2 have been completed, and the operations performed after the completion of the shipment, such as removal of the loading arms 3a to 5a and the grounding device 36, have been completed. As will be described later, the shut-off device 21 is configured to operate so as to obstruct the course of the tank lorry 2 at the start of shipping and permit the leaving of the tank lorry 2 at the end of shipping work.

A host computer 8 and an order receiving device 8a are installed in a building 7 such as an office remote from the shipping site.

A card reader 8b for reading the vehicle number card (not shown) of the tank lorry 2 is provided near the entrance of the oil tank, and the card reader 8b inserts the vehicle number card when the tank lorry 2 arrives before loading. Then, the vehicle number data read from the vehicle number card is output to the host computer 8.
The order receiving device 8a receives an order from the order receiving device 6 via a telephone line or the like, and outputs the order data to the host computer 8. The host computer 8 is an order receiving device
A reservation file is created based on the order data from 8a, and the reservation data is managed.

Here, the shipping operation to the tank lorry 2 at the oil depot will be described.

As shown in FIG. 1, at an oil depot where oil such as gasoline, light oil, and kerosene is loaded onto the tank truck 2 and shipped, an order is received from the ordering device 6 at a delivery destination such as a gas station by the order receiving device 8a. The reservation data such as the customer name, the order oil type (loading oil type), the order amount (loading amount), and the shipping date is input to the host computer 8, and a shipping plan by the tank truck 2 is created based on the reservation data. . Then, when the tank truck 2 arrives at the entrance of the oil depot, the card number card is read by the card reader 8b, and the delivery table describing the loading data and the delivery destination corresponding to the truck 2 is stored in the host computer 8. Issued by After that, the driver of the tank truck 2 receiving the delivery table,
Heading to the shipping stage 3 where the oil liquid is loaded, first, the card reader 3b provided in the shipping stage 3 reads the car number card. Thereby, the shipping control device 9 of the shipping stage 3
Indicates the type of loading oil of the tank truck 2 corresponding to the vehicle number,
The loading amount is set from the host computer 8.

The tank 15 of the tank truck 2 is normally partitioned into a plurality of hatches 15a to 15c, and the capacity of each hatch is different, for example, 4 kl, 2 kl, 1 kl. Therefore, the type and amount of oil to be loaded on the tank truck 2 are set for each of the hatches 15a to 15c.
When loading the oil liquid into the tank truck 5c, the hatch cards 18a to 1c provided for each of the hatches 15a to 15c of the tank truck 2 are used.
8c is read and collated by a hatch card reader 16 provided on the loading arm 3a of the shipping stage 3, and then the oil liquid is loaded into each of the hatches 15a to 15c.

As shown in FIG. 2, a pump 12, a flow meter 13, and a metering valve 14 are provided in a pipe 11 connected to a liquid storage tank 10 of the shipping system 1, and loading arms 3a, 4a are provided at ends of the pipe 11. , 5a
Is connected. The loading arms 3a, 4a, 5a are located at the base (rotation fulcrum) of each loading arm 3a, 4a, 5a.
Switch that detects that the device is in the standby position before shipment
37 are provided.

19 is an operation panel, a setting switch 19a for setting the shipment amount
And a shipment start switch 19b.

The car number card reader 3b, the pump starter 20 of the pump 12, the flow meter 13, the metering valve 14, the hatch card card reader 16, the operation panel 19, and the detection switch 37 are connected to the shipping control device 9.
It is connected to the. The shipping control device 9 is connected to the host computer 8.

As shown in FIGS. 3 and 4, the shutoff device 21 includes a telescopic member 22 as a shutoff means and a shutoff unit 23 for driving the telescopic member 22. The elastic member 22 is formed in a bellows-like cylindrical body with an elastic material such as rubber, and is attached so as to extend in the horizontal direction from the front surface 24a of the housing 24. The elastic member 22 is colored in a conspicuous color such as yellow or red. The housing 24 is supported by a support post 25 so that the elastic member 22 is at a horizontal position of about 2 m in height. or,
The shut-off unit 23 is housed inside the housing 24.

The shutoff unit 23 has one end connected to the air source 26 and an air pipe
In the middle of 27, a pressure reducing valve with filter 28, a variable throttle 29, a three-way solenoid valve 30, and a variable throttle 31 are provided. The other end of the air pipe 27 is attached to the front surface 24a of the housing 24 and connected to the nozzle 33, and the opening end 22a of the elastic member 22 is fitted and fixed to the outer periphery of the nozzle 33. The three-way solenoid valve 30 is switch-controlled by the shipping control device 9.

Therefore, the three-way solenoid valve 30 is switched by the signal from the shipment control device 9 at the same time as the start of the shipment of the oil liquid to the tank truck 2, and supplies the compressed air from the air source 26 to the expansion and contraction member 22. As shown in FIG. 3, the telescopic member 22 extends in the horizontal direction (A direction) by the pressure of the compressed air and projects forward of the tank truck 2 so as to obstruct the course.

The air from the air source 26 is reduced to a constant pressure by a pressure reducing valve 28, the flow rate is adjusted by a variable throttle 29, and
Supplied to 22. The check valve 32 is provided in the bypass pipe 34, and the air from the air source 26 is supplied to the variable throttle 31 and the check valve.
The nozzle 33 is supplied from both of the nozzles 32.

When the shipment of the oil liquid to the tank truck 2 is completed and the operations related to the shipping operation are completed, a shipment permission signal is output from the shipment control device 9 and the three-way solenoid valve 30 is switched.

A coil spring 35 is inserted inside the elastic member 22, and one end of the coil spring 35 is engaged with the nozzle 33 and the other end is engaged with an inner wall of an end of the elastic member 22. Therefore, when the three-way solenoid valve 30 is switched to open the nozzle 33 to the atmosphere,
The elastic member 22 contracts in the direction B by the spring force of the coil spring 35 and returns to the standby state before the operation. Since the air in the expansion and contraction member 22 is prevented from flowing back through the bypass pipe 34 by the check valve 32,
The gas is discharged from the three-way solenoid valve 30 to the atmosphere through the variable throttle 31. Accordingly, the elastic member 22 contracts more slowly when contracted than when expanded, and contracts slowly when contracted.

In the shipping system configured as described above, when the tank truck 2 arrives at the shipping stage 3, the operator stops the tank truck 2 in front of the shutoff device 21. Next, after inserting the car number card into the card reader 3b, the grounding device
Attach 36 to the car body. Furthermore, after inserting the hatch cards 18a to 18c into the card reader 16, the loading arm 3a is inserted into the hatch filler ports 17a to 17c. Next, the setting switch 19a
To set the loading amount.

When the setting data set by the setting switch 19a is in the reservation data and all the interlock conditions such as the ground detection and the loading arm detection are satisfied, the pump 12 is started by operating the shipping start switch 19b, and the metering valve is started. 14 is opened and fixed quantity shipment is performed.

The shipment control device 9 activates the pump 12 by operating the shipment start switch 19b, and switches the three-way solenoid valve 30 of the shutoff device 21 to compress the compressed air from the air source 26 into the expansion / contraction member 22.
To supply. As a result, the elastic member 22 extends in the horizontal direction (A direction) from the standby state as shown in FIG. 3 and projects forward of the tank truck 2. Since the expansion and contraction member 22 is driven by air pressure, it is advantageous for disaster prevention of the shipping stage 3 that handles the oil liquid, and the safety is enhanced.

The elastic member 22 is laid horizontally at a height of about 2 m and the surface thereof is colored in a conspicuous color, so that it is easy to see from the driver's seat of the tank truck 2. Therefore, if the driver sits in the driver's seat during shipment, the driver can confirm that the telescopic member 22 of the shut-off device 21 is protruding in front of the driver, and will not accidentally leave the vehicle.

On the other hand, in the shipping stage 3, when the pump 12 is started, the metering valve 14 is opened, and the oil liquid is loaded into the hatches 15a to 15c of the tank truck 2 via the loading arm 3a. During this time, the flow meter 13 measures the loading amount, and the measurement signal is output to the shipping control device 9.

When a preset loading amount is loaded into the hatches 15a to 15c, the pump 12 stops and the fixed quantity valve 14 closes. Thereby, the loading of the set oil liquid is completed, and the shipment to the tank truck 2 is completed.

At the end of the shipment, the worker pulls the loading arm 3a out of the hatch filler ports 17a to 17c, returns it to its standby position, and removes the grounding device 36 from the tank truck 2 to complete the shipping operation.

As a result, the detection switch 37 detects the return of the loading arm 3a to the standby position, and when the grounding device 36 is in the OFF state, the shipping control device 9 outputs a departure permission signal to switch the three-way solenoid valve 30 to expand and contract. The air in the member 22 is discharged to the atmosphere. At the same time, the elastic member 22 contracts from the position shown by the one-dot chain line in FIG. As a result, the telescopic member 22 projecting forward of the tank truck 2 is retracted toward the housing 24, and the tank truck 2 can exit.

In this way, the driver cannot enter the vehicle when the front is blocked by the telescopic member 22, thereby preventing the tank truck 2 from erroneously exiting during shipping. for that reason,
After leaving the reserved oil type, or leaving the tank lorry 2 out of the tank lorry 2 without forgetting to remove the mounting members such as the loading arm 3a and the grounding device 22 mounted on the tank lorry 2 at the time of shipment. It is prevented beforehand.

FIG. 5 shows a modification of the present invention. In FIG. 5, the elastic member
A wire 41 is inserted through the inside of 22. One end 41a of the wire 41 penetrates through the end 22b of the elastic member 22, and is locked by a stopper. The other end 41b of the wire 41 extends downward via a pulley 43 in the nozzle 33, and a weight 44 is connected to the other end 41b. The total length of the wire 41 is an elastic member
22 is long enough to extend horizontally by air pressure.

Therefore, when the compressed air is supplied into the elastic member 22 as described above, the elastic member 22 extends in the horizontal direction (A direction) while pulling the wire 41 against the weight of the weight 44. Then, when the three-way solenoid valve 30 is switched and the air in the elastic member 22 is exhausted, the elastic member 22 contracts in the direction B as the weight 44 descends.

In this case, since the elastic member 22 can return in the direction B by the weight of the weight 44, it can withstand long-term use regardless of the deterioration of the coil spring or the like.

6 and 7 show another modification. In both figures, a tube 45 is fitted and fixed on the outer periphery of the nozzle 33,
A blocking rod 46 is fitted and fixed to the tip of the. The tube 45 is formed of a flexible material, and is normally bent by the weight of the rod 46 as shown by a two-dot chain line in FIG. The bar 46 is painted red, white, yellow, or black.

Therefore, when compressed air is supplied into the tube 45 from the nozzle 33, the tube 45 itself extends linearly and the rod 46
Rotate in the direction. Thus, the rod 46 is held so as to extend in the horizontal direction from the housing 24, and prevents the tank truck 2 from leaving.

Then, when the three-way solenoid valve 30 is switched and the air in the tube 45 is exhausted, the tube 45 turns the bending rod 46 by 90 degrees in the D direction. Therefore, the rod 46 is housed in the groove 24b formed on the front surface 24a of the housing 24, and allows the tank truck 2 to exit.

In the case where some of the drivers of the tank lorry 2 leave the tank lorry 2 even though the telescopic member 22 or the rod 46 of the shutoff device protrudes forward of the tank lorry 2, A warning must be given to inform. In this case, when the loading arm 3a is inserted into the hatch filler ports 17a to 17c of the tank truck 2, the loading arm 3a breaks due to the leaving of the tank truck 2. When the earthing device 36 is still connected to the tank truck 2, the tank device 2 is departed and the earthing device 36 is connected.
Is damaged and becomes unusable. As means for notifying such an accident immediately, for example, when compressed air is supplied to the telescopic member 22 or the tube 45 to the shut-off device, the telescopic member 22 and the tube member 4 are kept until the shipping operation is completed.
A closing means for closing the passage of the nozzle 33 so that the air of 5 does not escape, and a telescopic member from the start of shipping to the end of shipping work
22, a pressure sensor for monitoring the pressure in the tube member 45 is provided. This closing means opens the passage of the nozzle 33 when the shipping work is completed as usual, and the elastic member 22, the tube member 4
5. Allow the inside of 5 to escape to the outside and allow the tank truck 2 to exit.

However, if the tank truck 2 leaves before the end of the shipping operation, the expansion and contraction member
22 or the tube 45 is damaged, and the air inside leaks.
The pressure sensor detects a decrease in the pressure of the telescopic member 22 or the tube 45 and outputs a detection signal. Shipping control device 9
When a signal is input from the pressure sensor, an alarm is issued immediately to notify the operator of the occurrence of an abnormality. Thereby, in the shipping stages 3 to 5, the loading arms 3a to 5a,
The occurrence of a breakage accident of the grounding device 36 or the like can be immediately known, the countermeasure is immediately executed, and the preventive measures against the occurrence of the secondary disaster are performed.

In the above embodiment, the compressed air is used. However, the present invention is not limited to this.
May be driven.

Further, in the above-described embodiment, the oil tank station has been described as an example. However, it is needless to say that the present invention can be applied to a fueling station where a tank truck loads and unloads the oil liquid.

Effect of the Invention As described above, the shipping system according to the present invention prevents the tank lorry from leaving by the blocking means provided in front of the stop position until the shipping operation to the tank lorry is completed. It is possible to prevent leaving the vehicle while the liquid is being shipped or with the loading arm and earthing device attached, forgetting to load the reserved oil type,
Alternatively, it is possible to prevent the loading arm or the grounding device from being damaged. Further, since the shut-off means is driven by the supply of the working fluid, it has features such as that safety at an oil depot that handles the oil liquid can be improved.

[Brief description of the drawings]

1 is a plan view of an oil tank to which an embodiment of a shipping system according to the present invention is applied, FIG. 2 is a schematic configuration diagram of the shipping system, FIG. 3 is a perspective view of a shutoff device, and FIG. FIG. 5 is a schematic configuration diagram of a modified example of the shutoff device, and FIGS. 6 and 7 are perspective views and schematic configuration diagrams of another modified example of the shutoff device. 1 ... Shipping system, 2 ... Tank truck, 3,4,5 ...
... Shipment stage, 9 ... Shipment control device, 15 ... Tank,
21 ... shut-off device, 22 ... telescopic member, 23 ... shut-off unit, 26 ... air source, 30 ... three-way solenoid valve, 35 ... coil spring, 41 ... wire, 45 ... tube, 46 ... rod .

Claims (1)

(57) [Claims] 1. A shipping system for shipping an oil liquid to a tank truck of a tank truck, wherein the system is provided in front of a stopping position of the truck and protrudes forward of the tank truck so as to obstruct the course of the truck by supplying working fluid. And supplying the working fluid to the shut-off means at the start of shipment of the oil liquid, discharging the working fluid of the shut-off means when the shipping operation is completed, and setting the shut-off means to a standby state, and A shipping system comprising: means for permitting departure of a vehicle.