JPH01226590A - Liquid supply device - Google Patents

Abstract

PURPOSE:To obtain a fluid supply unit which can supply fluid in a shorter fluid supply time while suppressing the generation of static electricity of a lorry equipped with a multiple number of hatches with different capacities, by setting an initial speed limit amount based on the data which has been stored, and providing a control unit by which a fluid supply is performed with a low speed up to the initial speed limit amount, according to a signal input of the fluid supply starting. CONSTITUTION:A fluid supply control unit 20 sets an initial speed limit amount to be 90l for a hatch H3, conforming to both numbers which have been put in, and a capacity for the hatch on a lorry and the initial speed limit amount which have been stored. When a driver presses a start switch 8 and the start signal is turned on, a control valve 17 is slightly opened by an output of a control signal, and a low speed fluid supply is performed. When the supply amount reaches the initial speed limit amount, 90l (integrated value during T0 T3) conforming to a signal from a flowmeter 15, the control valve 17 is totally opened by an output of a control signal, and the fluid supply is shifted to a high speed fluid supply. When the supply amount almost reaches the set fluid supply amount, 3K, the control valve 17 is returned to the slightly open condition by an output of a control signal, and the fluid supply is shifted to a low speed fluid supply. When the supply amount has reached the set fluid supply amount, the control valve 17 is totally closed by an output of a signal, to complete the control.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a liquid supply device for supplying gasoline, light oil, etc. to a 40-liter tank.

[Prior Art] As is well known, when supplying liquid to a lorry at an oil depot, in order to prevent charging due to the liquid being supplied, a grounding cable is connected to the grounding terminal of the lorry, and the discharge port of the loading arm is blocked with liquid. To prevent static electricity, the liquid is supplied at low speed until it reaches the bottom.

[Problems to be Solved by the Invention] In such a conventional liquid supply method, the hatch capacity of the row roller is, for example, four types, 1, 2, 3, and 4 kj2, and the amount until the discharge port is blocked with liquid is If the so-called initial velocity limit is, for example, 1 to 6 hatches, 3042.2 to 12 hatches, 602.3kj2 hatches, 90J2, and 120j2 to 4112 hatches, then set the initial velocity limit to the amount for the maximum capacity hatch. It was fixed. Therefore, even to the smallest hatch of 1 kfi, liquid was supplied at a low speed up to 120 j2.

Here, if the low-speed liquid supply amount is 200 M/min and the high-speed, that is, normal liquid supply amount is 1000 J2 per minute, the initial speed limit amount will increase by 90 d for a 1 kg hatch, and therefore <9
The liquid supply time was longer by 0.36 minutes (0/200)-<90/1000).

SUMMARY OF THE INVENTION An object of the present invention is to provide a liquid supply device that suppresses the generation of static electricity and shortens the liquid supply time for a roller provided with a plurality of hatches that increase capacity.

[Means for Solving the Problems] In order to achieve the above object, in the liquid supply device of the present invention, the initial velocity limit amount is set based on the input row number and hatch number and the stored data. In addition, a control means is provided for supplying liquid at a low speed up to the initial velocity limit amount in response to input of a liquid supply start signal.

The control means is composed of a liquid supply control device composed of a microcomputer and equipped with a card reader, which stores the capacity and oil type for each hatch for each row, and sets the initial speed limit amount to, for example, hatch capacity 1. 2.3.4kQ, respectively 30.
60.90.12012, and the liquid supply amount is preferably set to, for example, 20 ON per minute at low speed and 100 (l) per minute at high speed.

[Function] In the liquid supply device configured as described above, an initial speed limit is automatically set according to the capacity of the hatch, low-speed liquid is supplied until that limit, and thereafter the liquid is switched to high-speed liquid supply. , it is possible to suppress the generation of static electricity and shorten the liquid supply time.

[Example] The present invention will be described in detail below with reference to the drawings.

FIG. 1 shows an oil depot equipped with a liquid supply device embodying the present invention. On the premises of oil depot A, there are a plurality of liquid supply devices 2a, 2b,
... (the figure shows the liquid supply device 2a) is provided, and the side thereof is a liquid supply area Aa. The liquid supply device Z2a includes a rack 4, and the rack 4 is provided with loading arms 5a, 5b, . . . (the figure shows the arm 5a) depending on each type of oil.

The loading arm 5a is connected to a liquid supply rPf15 that is supplied with liquid from a liquid supply pump (not shown), and the liquid supply pipe 15 is provided with a flow meter 16 and a control valve 17 having a valve drive section 17a. . Also, loading arm 5
A is provided with a hatch sensor 6a and a start switch 8, and a display meter 7a that displays the amount of liquid supplied from the arm 5a is provided at an easily visible position above. Furthermore, rack 4
is provided with a liquid supply control device 20 which is a control means, and an office O is provided with a shipping control device 9 equipped with a keyboard 9a.

On the other hand, Lori R has a capacity of 1 and 4.2k12, respectively.
．． 3kffi and 4kQ hatches H1, H2, H3 and H4 are provided, each hatch having one hatch port each.
0a to LOd, and hatch identification pieces 11a to 11d that engage with the hatch sensors 6a are provided. In the figure, reference numeral 13 is a ground terminal, 14 is a ground cable, 18 is an on-vehicle control device composed of a microcomputer, and 19 is a card reader.

Referring also to FIG. 2, the liquid supply control device 20 is provided with a keyboard 21, necessary operation buttons 22, a card reader 23, a hatch sensor 6a, a display meter 7a, a start switch 8, a flow meter 16, and a control valve 17. is connected. In addition, the code|symbol 24 in a figure is an alarm device.

The liquid supply control device 20 is composed of a computer, which stores data on each row, that is, the capacity of each hatch, and inputs which liquid type and amount is to be supplied to each hatch in each row. It is now possible to do so. Also, if the initial speed limit is, for example, hatch capacity 1.2.3 and 4kR,
30, 60, 90 and 120+2, respectively, and the slow liquid supply rate is e.g.
000g, respectively. Note that the raw data may be stored in the shipping control device 9 in the office, and the data may be exchanged with the control device 9.

Next, the control mode will be explained with reference to FIG.

The driver of the Loli R inserts the card into the card reader 23 of the rack 4, the vehicle number stored on the card is input (step S1), and the hatch identification piece 11c of the hatch H3 of the Loli R is input to the hatch sensor 6a of the loading arm 5a.
is connected and the hatch number is input (step S2
), the liquid supply control device 20 sets the initial speed limit amount to 9012 for the hatch H3 based on the input numbers and the stored capacity and initial speed limit amount of the hatch of the row (step S3). When the driver presses the start switch 8 and inputs a start signal (step S4), a control signal is output, the control valve 17 is slightly opened, and low-speed liquid supply is performed (
(Time TO in step S5 and the time chart shown in FIG. 4).

Based on the signal from the flow meter 15, the initial velocity limit amount 90
When j2 (integral value of time 1゛0→T3) is reached, step S6 and time T3), a control signal is output to fully open the control valve 17 and switch to high-speed liquid supply (step S7 and time T3). When the set liquid supply amount (for example, 506 before 3 to 6 (integral value of time TO → Ta) is reached, step S8 and time Ta), a control signal is output, the control valve 17 is slightly opened, and low-speed liquid supply is started. Switching (step S9
), when the set liquid supply amount (integral value of time TO→Tb) is reached (step S10 and time Tb), a control signal is output, the control valve 17 is fully closed (step 511), and the control ends.

Similarly, for the hatch H1 with a capacity of 1 and 6, the initial speed limit is set to 3072, and the integral value of time TO → T1 is 3.
When the hatch capacity reaches 0j2, the control valve 17 is controlled to switch from half open to fully open at time TI, and the fourth
Perform liquid supply control as shown in the figure.

[Effects of the Invention] Since the present invention is constructed as described above, the liquid is fed at a low speed until the initial speed limit corresponding to the hatch capacity, and then the liquid is fed at a high speed, thereby suppressing the generation of static electricity and reducing the liquid feeding time. can be shortened compared to conventional equipment.

[Brief explanation of the drawing]

FIG. 1 is a side view of an oil depot equipped with a liquid supply device embodying the present invention, FIG. 2 is a control block diagram, FIG. 3 is a control flowchart, and FIG. 4 is a control timing chart. H1 to H4...Hatch 2a...Liquid supply device 5
a...Loading arm 6a...Hatch sensor 16...Flow meter 17...Control valve 20
...Liquid supply control device 23...Card reader Fig. 2 Fig. 4

Claims (1)

[Claims] A control means is provided which sets an initial speed limit amount based on the inputted lorry number and hatch number and the stored data, and supplies liquid at a low speed up to the initial speed limit amount by inputting a liquid supply start signal. Liquid supply device.