JPH064277Y2 - Colorant addition system - Google Patents

Description

[Technical Field] The present invention is intended for quality assurance of petroleum and tax evasion prevention, and to provide a colorant capable of detecting mixing of different oils such as kerosene with oil types such as gasoline. The present invention relates to a colorant addition system for quantitatively mixing different kinds of oils.

Conventional technology In recent years, the demand for gasoline has increased with the increase in automobiles,
While new gasoline outlets are conspicuous, intensifying sales competition has led to cheaper sales. The decline in sales prices lowers the profits of dealers, so it is conspicuous to sell poor gasoline that mixes cheap kerosene with gasoline. As a result, tax evasion such as the payment of taxes according to low-tax price kerosene may occur in terms of tax affairs. Since the petroleum tax system will change along with the tax reform, a detection method for detecting poor gasoline is being considered. As one of them, a certain amount of colorless liquid, such as coumarin (anhydrooxycoumaric acid anhydride) crystal, which has high detection sensitivity and is stable to temperature changes and does not deteriorate for a long time, is mixed with alcohol is mixed with kerosene in a fixed amount, for example, 100 ppm, and the mixed kerosene is mixed with gasoline. There is a foreign substance detection method that utilizes the fact that the reagent causes the color to change to red. This method comprises injecting and mixing a fixed ratio of a coumarin solution with respect to a flow rate measured by a flow meter interposed in a kerosene line from a tank containing a separately provided colorant coumarin solution.

Problems of the conventional technology There are many methods of mixing a fixed ratio of the secondary liquid with respect to the injection flow rate, and basically, the sealing liquid is injected continuously for the instantaneous value of the injection flow rate. There are a continuous blending method and a batch blending method in which an auxiliary liquid corresponding to a mixing ratio is mixed with a fixed amount of main liquid. Furthermore, the continuous blending method is also classified into electronic, mechanical, etc. and each has its own characteristics, but the electronic type becomes expensive as seen in the in-line blending method with a small volume flow meter, and the mechanical type is There is a pumping meter that discharges and transfers the secondary liquid through a pump that discharges in proportion to the rotor rotation speed of the volumetric flow meter using the rotary type of the volumetric flow meter that measures the main liquid, and is inexpensive. However, there is a problem that mixing accuracy is low because a load is applied to the flowmeter. One of the batch blending methods is to mix the flow pulse of the fixed flow rate of the auxiliary liquid flow meter to be mixed with the main liquid flow rate pulse transmitted from the flow rate transmitter to the same flow weight. However, in this method, since the secondary liquid is mixed after the measurement of the main liquid, there is a problem that the coloring agent remains in the piping in the coloring agent addition system in which the secondary liquid is the coloring agent. There was no guarantee that they were mixed at the set ratio.

Purpose The present invention has been made to solve the above problem. Instead of mixing the colorants added to the main oil liquid after separating and measuring each, the predetermined oil liquid amount is transferred during the transfer of the flow rate to be shipped. This is to send a warning when there is an erroneous operation in which the colorant is not mixed by cleaning the pipes by adding and mixing a certain proportion of colorant to the main oil flow pulse. A shipping line through which an oil liquid flows through a flow meter and an opening / closing valve, and a valve that opens by setting the flow rate to be shipped on the shipping line and integrates the flow rate pulses to reach a fixed amount A shipping device that sends an opening / closing signal and a flow signal at a predetermined flow rate, a flow meter that sends a colorant flow pulse and an addition line that circulates a colorant that is added at a fixed ratio to the oil liquid flow rate through an opening / closing valve. And add the addition line A batch counter that sends a chi-start signal, closes the valve when it flows, and closes when the colorant reaches a fixed amount, and sends a batch completion signal and an oil liquid shipment signal and the flow rate signal transmitted from the shipping device. Then, a batch start signal is transmitted for each flow rate signal during the oil liquid shipping period, and after the batch start signal is transmitted, an alarm is transmitted when the addition completion signal is not transmitted during the period when the next batch start signal is transmitted. It is a colorant addition system composed of an alarm device.

Embodiment FIG. 1 is a block diagram showing an outline of a colorant addition system of the present invention, in which the left side of the broken line L-L is the shipping side, and the right side is a remotely operated shipping device and alarm device. . In the figure, reference numeral 1 denotes a main oil liquid line for transferring a main oil liquid that is pressure-fed from an oil liquid tank (not shown), and a main flow meter 2 and a valve 3 are interposed and noise 11 causes the oil tank ship 10 to be colored with the main oil liquid. The mixed oil solution to which the additive is added is shipped. A pulse transmitter 21 is attached to the main flow meter 2 to emit a main oil liquid flow pulse. Reference numeral 4 denotes a shipping device, which sets the amount of oil liquid to be shipped, opens the valve 3, measures the main oil liquid flowing by the main flow meter 2, and transmits and integrates the main oil liquid flow pulse to set. When the quantity is reached, a valve closing signal for closing the valve 3 is transmitted. The shipping device 4 also transmits a constant voltage value signal A indicating that the main oil liquid is being shipped and a main oil liquid flow rate pulse signal B converted into a unit flow rate to an alarm device 9 described later. A colorant addition line 5 measures the colorant pressure-fed from a tank (not shown) with a flow meter 6 and injects and mixes a predetermined proportion of the colorant with respect to the main oil liquid at a flow path P point. The transfer of the colorant is performed by an instruction to open the valve 7 of the batch counter 8 described later. The colorant flow pulse transmitted from the transmitter 61 of the flow meter 6 is received and integrated by the batch counter 8. When the set quantity is reached, the valve 7 is closed and the addition completion signal F is output from the batch counter 8. The alarm device 9 is the shipping device 4
A function of transmitting a valve opening signal C of the valve 7 to the batch counter 8 to issue a flow command of the colorant addition line 5 when the main oil liquid flow rate pulse B output from the frequency divider is divided to reach a predetermined amount, and It has a function of issuing an alarm G when the colorant addition completion signal F is not transmitted by the time the next valve opening signal C is transmitted.

FIG. 2 shows a time chart in the block diagram shown in FIG. 1st according to the time chart
The operation of the figure will be described below. The valve 3 is opened according to the shipping instruction of the shipping device 4, and at the same time, the shipping signal A is transmitted. The shipping signal A is a voltage signal of a constant level, which is transmitted during the period when the shipping amount of, for example, 500 Kl is completed and the valve is closed, and is transmitted to the alarm device 9. Further, when the main oil liquid line 1 is circulated by opening the valve 3 and the main oil liquid flow pulse B is transmitted from the pulse transmitter 21 when the oil injection liquid flow pulse is not the unit amount, the unit flow rate of the shipping device 4 is set. The main oil liquid flow rate pulse B corrected to the pulse is transmitted to the alarm device 9.

FIG. 3 is a block diagram showing the principle of the alarm device 9 and is surrounded by a broken line. The power supply is omitted in the figure. The phototransistor PTA is actuated by the optical signal of the photodiode PDA, to which the shipping signal A is applied to the terminals 1A and 2A and the current is limited by the resistor R, and the phototransistor PTA is actuated by the amplifier 21 and the frequency dividers 22, 23 and the mono. The multi (MM) circuit 24 is reset to enable frequency division input. The main oil liquid flow rate pulse B is applied to the terminals 1B and 2B, the waveform is shaped by the Schmitt circuit SH, and the photodiode PDB is driven. The optical signal of the photodiode PDB drives the phototransistor PTB, inputs the main oil liquid signal to the frequency dividing circuits 22 and 23, and changes the switch 25.
For every flow rate of the frequency division value selected by M.
The addition start command signal C is output from the M circuit 24 from the terminal 1c. The addition start command signal C is the batch counter 8
And the valve 7 of the addition line 5 is opened to flow the coloring additive. An additive flow pulse is transmitted from the flow meter 6, the batch counter 8 counts and integrates, and the valve 7 is closed when the integrated value reaches a set value, for example, 500 cc. The valve signal during this period indicates the flow period of the addition line 5 shown in FIG. 2D, and the addition completion signal F is transmitted by the fall of the valve signal D. The addition completion signal F is applied to the terminals 1F and 2F and the phototransistor PTF via the photodiode PDF.
Operate. The alarm transmitting section is composed of RS flip-flop circuits (hereinafter simply referred to as FF circuits) 26, 27, an AND gate 28, and a time delay circuit 29.

Next, the operation of the alarm transmitter will be described. The addition start command signal C is applied to the a input terminal of the AND gate 28, but the signal period of the addition start command signal C is short and immediately becomes "0" level. However, the time delay circuit 29 causes the F.D. The F circuit 26 is set, and the output Q, that is, the b input end of the AND gate 28 is set to "1" by the set signal. However, since the output of the AND gate 28 is "0", the F.D. The output Q of the F circuit 27 remains "0". The measurement completion signal F is output after the additive additive measurement time is delayed.
Since the F circuit 26 is set, the b terminal of the AND gate 28 is set to "0" when the measurement completion signal F is output.
Next F. No alarm is output from the terminal 1G without setting the F circuit 27. However, when the measurement completion signal F is not transmitted, the a terminal of the AND gate 28 outputs the F.D. The F circuit 27 is set, and the alarm G is issued. Here, the signal R is a power supply reset signal, and when the power is turned on, the F. F
The circuits 26 and 27 are reset at the same time. The alarm G is issued to prevent the risk of shipping only the oil liquid because no additive is added.

Effect As described above, according to the colorant addition system of the present invention, the addition of the colorant to the main oil liquid is divided by the main oil liquid flow rate pulse, and a constant ratio is obtained for each flow rate. Since the color additive is mixed, the main oil liquid is discharged until the next mixing after mixing the color additive, so the colorant remaining in the main oil liquid pipeline is washed and remains in the pipeline. Not done. Further, when the coloring additive is not added, an alarm is issued, so that the characteristic of the batch blending is utilized to make uniform addition of the coloring agent.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of the coloring and adding system of the present invention, FIG. 2 is a time chart, and FIG. 3 is an electrical block diagram of an alarm device. 1 ... Main oil liquid line, 2, 6 ... Flow meter, 5 ... Addition line, 3, 7 ... Valve, 4 ... Shipping device, 8 ... Batch counter, 9 ... Alarm device.

Claims (1)

[Scope of utility model registration request] 1. A shipping line in which an oil liquid is circulated through a flow meter for sending a main oil liquid flow pulse and an opening / closing valve, and a flow rate to be shipped in the shipping line is set and opened to open the flow pulse. When the accumulated amount reaches a fixed amount, a valve opening / closing signal that closes and a shipping device that sends a flow rate signal at every predetermined flow rate, a flow meter that sends a colorant flow pulse and an opening / closing valve An addition line that circulates a coloring agent that is added at a fixed ratio, a valve that circulates the addition line by receiving a batch start signal, closes when the coloring agent reaches a fixed amount, and a batch counter that transmits an addition completion signal And receiving the oil liquid shipping signal and the flow rate signal transmitted from the shipping device,
An alarm device that issues a batch start signal for each flow rate signal during the oil liquid shipment period, and issues an alarm when the addition completion signal is not issued during the period when the batch start signal is issued after the batch start signal is issued. A colorant addition system characterized by being composed of and.