JP2010043976A - Virtual flowmeter monitoring system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a virtual flowmeter monitoring system that can grasp a flowrate of a piping route not having a flowmeter and can grasp a flowrate in each job even when a plurality of oil-operation jobs are concurrently carried out. <P>SOLUTION: A transportation system of fluid includes a plurality of piping lines, at least one or more valves provided on the piping lines and at least one or more flowmeters provided on the piping lines. The transportation system further includes a valve open/close state acquisition means for acquiring an open or close state of the valve and a flowrate value acquisition means for acquiring a flowrate value from the flowmeter. The open or close state of the valve acquired by the valve open/close state acquisition means is compared with a plurality of valve open/close pattern registered beforehand. On the basis of a calculation formula that is registered beforehand by being associated with a coincident valve open/close pattern and the flowrate value acquired by the flowrate value acquisition means, a flowrate of fluid flowing in a piping line not having the flowmeter in the piping lines is calculated out. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a virtual flow meter monitor system that uses an existing flow meter to grasp the flow rate of a pipe that does not have a flow meter. In particular, when transferring oil or gas from equipment or tanks to other equipment or tanks at a refinery offsite, use existing flowmeters even if there is no flowmeter in the transfer piping route. The present invention relates to a virtual flow meter monitor system for grasping a transfer flow rate.

  In refineries that produce various petroleum products from crude oil, or petrochemical plants that produce various products from raw oil, in addition to manufacturing equipment such as distillation equipment and reactors, various raw material oils sent to the manufacturing equipment are externally supplied. Receiving equipment for receiving oil, many raw oil tanks for storing raw oil, product oil tanks for storing various product oils sent from manufacturing equipment, mixing equipment for mixing various product oils, shipping equipment for product oil Various incidental facilities are necessary.

Usually, the manufacturing apparatus is concentrated in a plant site, that is, an area called “on-site” because of the relationship of manufacturing product oil by combining complicated manufacturing processes.
On the other hand, ancillary equipment is convenient for carrying in raw material oil and taking out products, for example, it is relatively distributed in a wide area called “offsite” near the coast and connected by a piping network consisting of multiple piping lines. Has been.

  Various incidental facilities other than the manufacturing apparatus arranged on-site and the piping network associated therewith are collectively referred to as off-site. In other words, the off-site is composed of various incidental facilities, the incidental facilities, and a piping network composed of a plurality of piping lines connecting the incidental facilities and the on-site manufacturing apparatus.

  For example, as shown in FIG. 6, a pump that sends a large number of storage tanks (T807 to T812) and raw material oil or product oil stored in the storage tanks (T807 to T812) to a predetermined place as shown in FIG. A piping line and a valve that connect (not shown) are arranged.

  In addition, as shown in FIG. 7, there are many storage tanks (T819 or T820), pumps for sending product oil from the storage tanks (P726 to P734), flow meters (for example, a round symbol on the downstream (right side) of P731), etc. Equipment and piping lines connecting these equipment are laid.

  By the way, at off-site, receiving / dispensing work for receiving / dispensing oil to / from a refinery, transferring work for transferring oil to another tank, blending work for mixing oil, receiving oil from on-site equipment, Device pay-off work for supplying oil to an on-site device is registered in advance in the operation management system as an oil operation job and is operated using this system.

  As shown in FIG. 8, the oil operation job system 100 as an example of such an oil operation job system is connected to the tank T10 through the pipe 104 and the tank T11 through the pipe 106 from the apparatus S10 through the pipe 102 and the flow meter FS10. To be transferred. An automatic valve V10 that can be remotely operated is installed in the middle of the pipe 104, and an automatic valve V11 and a flow meter FS11 that can be remotely operated are installed in the middle of the pipe 106.

The automatic valves V10 and V11 have a function of notifying the opening / closing state of the valve by a signal. By sending this signal to a computer (not shown) of the oil handling job system 100, the opening / closing of each valve is performed. The state can be centrally managed.

  In order to move the oil from the device S10 to the tank T10 via the pipe 102 and the pipe 104 (hereinafter referred to as job JOB10), the automatic valve V10 is opened and the automatic valve V11 is closed for transfer. Thus, the transfer flow rate becomes possible by the FS 10 grasping.

  The systematization of such oil manipulation jobs has already been completed, and a system that can be applied to oil manipulation operations such as receipt / shipment operations and tank transfer operations has been commercialized as follows, for example. It is possible to prevent malfunction of valve opening and closing during oil operation.

Product name: Off-site control system Exams 3000 (manufactured by Yokogawa Electric Corporation)
Off-site operation management system OCS (manufactured by Yamatake Corporation)

  However, such a conventional oil manipulation job system can grasp the flow rate related to the oil manipulation job if there is a flow meter on the registered piping route, but if there is no flow meter on the piping route, I can't figure out.

  In the above example, when the job JOB10 and the job JOB11 are executed at the same time, the flow meter FS10 measures the flow rates of both the job JOB10 and the job JOB11 and cannot directly grasp the flow rates related to the job JOB10. There is a need for a system that can measure the flow rate of each job even when these jobs are being executed simultaneously.

  In view of such a situation, the present invention can grasp the flow rate of the piping route where there is no flow meter on the piping route at any time, and the flow rate in each job can be obtained even when a plurality of oil manipulation jobs are executed simultaneously. The purpose is to provide a virtual flow meter monitor system that can be grasped.

The present invention has been invented in order to achieve the problems and objects in the prior art as described above, and the virtual flowmeter monitor system of the present invention includes:
Multiple piping lines,
At least one valve provided on the piping line;
At least one flow meter provided on the piping line;
In a fluid transfer system comprising at least
Valve opening / closing state acquisition means for acquiring the opening / closing state of the valve;
Flow value acquisition means for acquiring a flow value from the flow meter;
With
Compare the valve opening / closing state acquired by the valve opening / closing state acquisition means with a plurality of valve opening / closing patterns registered in advance,
Based on the calculation formula registered in advance in association with the matched valve opening / closing pattern and the flow rate value acquired by the flow rate value acquisition means, the flow rate of the fluid flowing through the piping line in which no flow meter exists among the piping lines is calculated. It is characterized by calculating.

With such a configuration, it is possible to calculate the flow rate of the fluid flowing through the piping line based on an arithmetic expression registered in advance in association with the open / close state of the valve. For this reason, even if there is no flow meter on the piping line, the flow rate can be calculated only with the existing flow meter, so there is no need to install a new flow meter and the cost can be reduced. Can do.

  Furthermore, even in a transfer system in which piping lines exist in a complicated manner, the flow rate value of a piping line that does not have a flow meter on the piping line, that is, the flow rate value of a virtual flow meter, the valve opening / closing pattern, and this By registering a calculation formula associated with the valve opening / closing pattern in advance, it can be calculated quickly and accurately.

  In particular, when there are complicated piping lines such as off-site at a refinery, it is not practical to install flow meters in all the piping lines. By using the virtual flow meter monitor system of the invention, it is possible to quickly and accurately calculate at least the pipe line flow rate that is necessary only with the existing flow meter, so that the cost can be greatly reduced.

Further, the virtual flow meter monitoring system of the present invention comprises at least one or more tanks connected to the piping line in the transfer system,
The tank includes an inventory amount acquisition means for acquiring an inventory amount of fluid in the tank,
Based on the calculation formula registered in advance in association with the matched valve opening / closing pattern, the flow rate value acquired by the flow rate value acquisition unit, and the inventory amount acquired by the inventory amount acquisition unit, among the piping lines It is characterized in that the flow rate of the fluid flowing through the piping line where there is no flow meter is calculated.

  Thus, not only the flow meter existing on the piping line but also the increase / decrease amount of the inventory amount of the tank connected to the piping line can be used similarly to the flow rate value of the flow meter. For this reason, if a tank that is included in the transfer system is equipped with a device that measures the amount of stock, it is necessary to measure the flow rate of fluid entering the tank and the flow rate of fluid leaving the tank. It is not necessary to provide a flow meter in the battery, and the cost can be reduced.

The virtual flowmeter monitoring system of the present invention includes a process computer, and the flow rate is calculated by the process computer.
In this way, the calculation of the flow value of the virtual flow meter is not limited to the arithmetic device designed for calculating the flow value, but also controls the existing transfer system and devices such as valves and transfers to the transfer system operator. This can be done by a process computer that provides system information. For this reason, since existing facilities can be used, costs can be reduced.

In the virtual flow meter monitoring system of the present invention, the process computer has a valve device information database.
The virtual flowmeter monitoring system of the present invention is characterized in that the valve open / closed state acquired by the valve open / closed state acquisition means is registered in the valve device information database.

The virtual flowmeter monitor system of the present invention is characterized in that the process computer has a flowmeter device information database.
The virtual flow meter monitor system of the present invention is characterized in that the flow rate value acquired by the flow rate value acquisition means is registered in the flow meter device information database.

The virtual flow meter monitoring system of the present invention is characterized in that the stock quantity acquired by the stock quantity acquisition means is registered in the flow meter device information database.
In the virtual flow meter monitoring system of the present invention, the calculated flow rate is registered in the flow meter device information database.

In the virtual flowmeter monitoring system of the present invention, the process computer has the valve opening / closing pattern as a database.
In the virtual flowmeter monitoring system of the present invention, the process computer has a calculation formula associated with the valve opening / closing pattern as a database.

  In this way, by managing device information such as valve open / closed state and flow rate value of the flow meter in a batch by the database of the process computer, the operator of the transfer system operates only the process computer, so that the piping line It is possible to grasp the flow rate of the piping line where there is no upper flow meter, that is, the flow rate value of the virtual flow meter in a lump without causing a time lag.

  In addition, since the calculation formula of the flow rate value of the virtual flowmeter associated with the valve opening / closing pattern and the valve opening / closing pattern is stored in the process computer as a database, even if the configuration of the transfer system is added or changed, Since these databases can be maintained from the process computer, it is possible to easily cope with addition / change of the configuration of the transfer system.

The virtual flowmeter monitoring system according to the present invention is characterized in that the valve opening / closing state acquisition unit acquires the valve opening / closing state every predetermined time.
Thus, when it is necessary to sequentially grasp the change in the flow rate of the fluid transferred by the transfer system by configuring the valve open / closed state to be acquired every predetermined time, for example, every second By setting to obtain, it is possible to quickly grasp the change in the flow rate.

  On the other hand, when there is almost no change in the flow rate of the fluid transferred by the transfer system, the open / close state of the valve is set to be acquired every minute, for example, to the virtual flow meter monitor system. The load can be reduced and stable operation can be achieved.

In the virtual flowmeter monitor system of the present invention, the valve is at least one of a manual valve, an automatic valve, and a flow control valve.
By using such a valve, the valve open / close state can be reliably acquired by the valve open / close state acquisition means.

Moreover, the virtual flowmeter monitoring system of the present invention is characterized in that the transfer system is provided off-site of a refinery.
Thus, even when the fluid is transferred using a complicated piping line at the refinery off-site by applying the virtual flowmeter monitor system of the present invention to the transfer system at the refinery off-site. Can manage the flow rate quickly and accurately.

  According to the present invention, it is possible to calculate the flow rate by a calculation formula registered in advance in association with the valve opening / closing pattern that matches the valve opening / closing state even in the transfer work when the flow meter does not exist in the piping line, The flow rate can be accurately grasped.

  Furthermore, according to the present invention, by using only an existing flow meter without newly installing equipment such as a flow meter, it becomes possible to calculate the flow rate flowing through the piping line where there is no flow meter, and at low cost. Accurate flow rate can be grasped.

Hereinafter, embodiments (examples) of the present invention will be described in more detail based on the drawings.
FIG. 1 is a schematic diagram of a first transfer system to which the virtual flow meter monitor system of the present invention is applied, FIG. 2 is a system schematic diagram for explaining a schematic operation of the virtual flow meter monitor system of the present invention, and FIG. It is a system configuration figure explaining the system configuration of the virtual flow meter monitor system of the present invention.

  The first transfer system 12 shown in FIG. 1 is configured to transfer oil from one device S1 to two tanks T1 and T2. The transfer operation from the apparatus S1 to the tank T1 is registered as a job JOB1, and the transfer operation from the apparatus S1 to the tank T2 is registered as a job JOB2.

  In this first transfer system, a flow meter FS1 is installed in the pipe 16 between the device S1 and the branch B1 of the pipe line, and a flow meter FS2 is installed in the pipe 20 between the branch B1 of the pipe line and the tank T2. Is installed.

  A valve V1 is installed in the pipe 18 between the branch line B1 of the piping line and the tank T1, and a valve V2 is installed in the pipe 20 between the branch line B1 of the pipe line and the tank T2.

  Here, as the valves V1 and V2, for example, a manual valve, an automatic valve, a flow rate control valve, or the like can be used. By using these valves, it is possible to accurately grasp the open / closed state of the valves.

  When only the job JOB1 is executed, the valve V1 is opened and the valve V2 is closed. When only the job JOB2 is executed, the valve V1 is closed and the valve V2 is opened.

  In such a first transfer system 12, the flow rate of oil flowing through the piping line from the branch B1 of the piping line to the tank T1, that is, the flow rate value of the virtual flow meter VFS1 is calculated by the virtual flow meter monitoring system 10 of the present invention. Is done.

  In this embodiment, the flow values of the flow meters FS1 and FS2 and the flow value of the virtual flow meter VFS1 are expressed as FS1, FS2, and VFS1, respectively, using the names of the devices. Hereinafter, the same applies to the flow rate value of the flow meter or the virtual flow meter and the stock amount increase / decrease value of the stock amount measuring device described later.

  As shown in FIG. 2, the open / close state of the valves V1, V2 and the flow rate values of the flow meters FS1, FS2 are equipment information such as a predetermined time, for example, every second, the open / close state of the valve, and the flow rate value of the flow meter. Is acquired by a DCS (Distributed Control System) 20 that also serves as a valve open / close state acquisition means and a flow rate value acquisition means, and these pieces of device information are converted into data in the DCS 20 and are converted at predetermined time intervals, for example, The data is input to the process computer 30 every minute.

  The process computer 30 includes a valve device information database 34 in which information about the valve such as the valve open / close state is registered, a flow meter device information database 36 in which information about the flow meter such as a flow rate value of the flow meter is registered, and valve opening / closing. It has a processing condition establishment pattern database 38 in which patterns are registered, and a virtual flowmeter arithmetic expression database 40 in which arithmetic expressions for calculating the value of the virtual flowmeter in relation to the processing conditions are registered.

In the valve device information database, at least the opening / closing states of the valves V1, V2 are registered in association with the unique information (valve tag No.) of the valves V1, V2.
In the flow meter device information database, at least the flow values of the flow meters FS1 and FS2 are registered in association with the unique information (flow meter tag No) of the flow meters FS1 and FS2.

  In the processing condition pattern establishment monitor (processing condition pattern establishment determination program) 31 included in the process computer 30, the open / closed states of the valves V 1 and V 2 registered in the valve device information database 34 are registered in the processing condition establishment pattern database 38. Which of the valve opening and closing patterns matches is monitored every predetermined time, for example, every minute.

Reference numeral 40 denotes a timer for notifying the processing condition pattern establishment monitor 31 of the monitoring timing.
The processing condition establishment pattern database 38 has a structure as shown in Table 1, for example. That is, the open / close state of the valve is registered corresponding to the processing pattern, and the open / close state (open / close pattern) of the valve is registered in the valve device information database 34 by the processing condition pattern establishment monitor 31. Compare with the open / closed state of V2, and search for a matching processing pattern.

そして、処理条件パターン成立モニタ３１によって検索された処理パターンは、仮想流量計値算出モニタ（仮想流量計値算出プログラム）３２に送信され、仮想流量計演算式データベース４０から処理パターンに応じた仮想流量計ＶＦＳ１の流量を算出するための演算式が検索され、仮想流量計ＶＦＳ１の流量値が算出される。

Then, the processing pattern searched by the processing condition pattern establishment monitor 31 is transmitted to the virtual flow meter value calculation monitor (virtual flow meter value calculation program) 32, and the virtual flow rate corresponding to the processing pattern is obtained from the virtual flow meter arithmetic expression database 40. An arithmetic expression for calculating the flow rate of the meter VFS1 is searched, and the flow rate value of the virtual flow meter VFS1 is calculated.

  The virtual flowmeter arithmetic expression database 40 has a structure as shown in Table 2, for example. That is, according to the processing pattern, a flow meter tag No. and a calculation code for calculating the flow value of the virtual flow meter are registered.

例えば、第１の移送システム１２において、ジョブＪＯＢ１のみが実行された場合には、上述したように、バルブＶ１が開けられ、バルブＶ２が閉められた状態となる。この状態は、表１に示した処理条件成立パターンデータベース３８において、開閉パターン１のみが一致する。

For example, in the first transfer system 12, when only the job JOB1 is executed, the valve V1 is opened and the valve V2 is closed as described above. This state matches only the opening / closing pattern 1 in the processing condition establishment pattern database 38 shown in Table 1.

In the virtual flow meter value calculation monitor 32, the virtual flow meter calculation formula database 40 shown in Table 2 is used to calculate the virtual flow meter VFS1 corresponding to the opening / closing pattern 1, VFS1 = FS1.
Is obtained from the flow meter device information database 36, and the flow value of the virtual flow meter VFS1 is calculated.

  Further, when the job JOB1 and the job JOB2 are executed at the same time, both the valve V1 and the valve V2 are opened. Therefore, in the processing condition satisfaction pattern database 38 shown in Table 1, the opening / closing patterns 1 and 2 are Match.

  Similarly, the virtual flow meter value calculation monitor 32 is based on the virtual flow meter calculation formula database 40 shown in Table 2 based on the calculation formula of the virtual flow meter VFS1 corresponding to the open / close patterns 1 and 2, VFS1 = FS1-FS2. The flow rate values of the flow meter FS1 and the flow meter FS2 are acquired from the flow meter device information database 36, and the flow rate value of the virtual flow meter VFS1 is calculated.

The flow rate value of the virtual flow meter VFS1 calculated in this way is registered in the flow meter device information database 36.
As the flow values of the flow meters FS1 and FS2 and the virtual flow meter VFS1 registered in the flow meter device information database 36, actual flow values or counter values may be used.

  Here, the counter value is an integrated value that is added every time a constant flow rate flows through the flow meter. In order to measure the amount of oil that has flowed for a certain period of time, The counter value can be calculated by multiplying the difference by a constant flow rate to which a coefficient, that is, the counter value is added.

  In this embodiment, device information such as the valve open / close state, the flow rate value of the flow meter, and the calculated flow rate value of the virtual flow meter is registered as a database, but the processing condition pattern establishment monitor 31 and You may comprise so that apparatus information may be input into the virtual flow meter value calculation monitor 32, the flow value of a virtual flow meter may be calculated, and the result may be output to output devices, such as a display, for example.

  FIG. 4 is a schematic diagram of the second transfer system 13 to which the virtual flowmeter monitor system of the present invention is applied. The second transfer system 13 is configured to transfer oil from one device S2 to three tanks T3, T4, and T5. The transfer operation from the apparatus S2 to the tank T3 is registered as a job JOB3 as an oil operation job.

  In the second transfer system 13, a flow meter FS3 is installed in a pipe 22 between the device S2 and the branch B2 of the pipe line, and a valve V3 and a pipe are connected to the pipe 24 between the branch B2 of the pipe line and the tank T3. A valve V4 and a flow meter FS4 are installed in the pipe 26 between the branch B2 of the line and the tank T4, and a valve V5 and a flow meter FS5 are installed in the pipe 28 between the branch B2 of the pipe line and the tank T5.

  In the second transfer system 13, the virtual flow meter VFS2 for measuring the amount of oil transferred by the job JOB3 is assumed as the virtual flow meter calculated by the virtual flow meter monitor system 10 of the present invention. .

  In the second transfer system 14, the processing condition establishment pattern database 38 has a structure shown in Table 3. Further, the virtual flowmeter arithmetic expression database 40 has a structure shown in Table 4.

例えば、第２の移送システム１３において、ジョブＪＯＢ３が実行された場合には、バルブＶ３が開けられ、バルブＶ４、Ｖ５は閉められた状態となる。このため、表３に示した処理条件成立パターンデータベース３８において、開閉パターン１のみが一致する。

For example, in the second transfer system 13, when the job JOB3 is executed, the valve V3 is opened and the valves V4 and V5 are closed. Therefore, only the opening / closing pattern 1 matches in the processing condition establishment pattern database 38 shown in Table 3.

  Then, in the virtual flow meter value calculation monitor 32, VFS2 = FS3 is used to calculate the virtual flow meter VFS2 from the virtual flow meter calculation formula database 40 shown in Table 4 using the virtual flow meter calculation formula corresponding to the opening / closing pattern 1. A flow value is calculated.

  FIG. 5 is a schematic diagram of a third transfer system 14 to which the virtual flowmeter monitor system of the present invention is applied. The third transfer system 14 includes a piping line for transferring from the tank T6 to the device S3 and a piping line for transferring from the tank T6 to the device S3 via the tank T7.

  The transfer operation from the tank T6 to the apparatus S3 is registered as a job JOB4, the transfer operation from the tank T6 to the tank T7 is registered as a job JOB5, and the transfer operation from the tank T7 to the apparatus S3 is registered as a job JOB6.

  And in this 3rd transfer system 14, flowmeter FS6 is installed between branch B4 of piping line, and apparatus S3. Furthermore, a stock quantity measuring device TF1 for measuring the stock quantity of oil in the tank T7 is installed in the tank T7.

  Note that the inventory amount of the tank T7 may increase or decrease depending on the relationship between the storage amount and the output amount. In the inventory measuring apparatus TF1, the increase / decrease of the inventory quantity is displayed as + TF1 when the inventory quantity increases and -TF1 when the inventory quantity decreases.

  Further, a valve V6 is provided between the piping line branch B3 and the piping line branch B4, a valve V7 is provided between the piping line branch B3 and the tank T7, and a valve is provided between the tank T7 and the piping line branch B4. V8 is installed.

In this third transfer system 14, the virtual flowmeter calculated by the virtual flowmeter monitor system 10 of the present invention is transferred by virtual flowmeters VFS3 and JOB5 for measuring the amount of oil transferred by JOB4, Three virtual flow meters VFS4 and FS6 are used which are transferred by a virtual flow meter VFS4 and JOB6 for measuring an increase in the inventory amount of the tank T7, and a decrease in the inventory amount of the tank T7 is measured.

  In the third transfer system 14, the processing condition establishment pattern database 38 has a structure shown in Table 5. Further, the virtual flowmeter arithmetic expression database 40 has a structure shown in Table 6.

例えば、第３の移送システム１４において、ジョブＪＯＢ４とジョブＪＯＢ５が同時に
実行された場合には、バルブＶ６及びバルブＶ７が開けられ、バルブＶ８が閉められた状態となる。

For example, in the third transfer system 14, when the job JOB4 and the job JOB5 are executed simultaneously, the valve V6 and the valve V7 are opened and the valve V8 is closed.

  In this case, the opening / closing pattern 2 matches in the processing condition satisfaction pattern database 38. For this reason, in the virtual flow meter value calculation monitor 32, based on the virtual flow meter arithmetic expression database 40 shown in Table 6 and the virtual flow meter VFS3 arithmetic expression corresponding to the opening / closing pattern 2, VFS3 = FS6, the flow meter device The flow value of the flow meter FS6 is acquired from the information database 36, and the flow value of the virtual flow meter VFS3 is calculated.

Further, in the third transfer system 14, when the jobs JOB4, JOB5, and JOB6 are all executed simultaneously, the valves V6, V7, and V8 are all opened.
In this case, the open / close pattern 4 matches in the processing condition establishment pattern database 38. For this reason, in the virtual flow meter value calculation monitor 32, the virtual flow meter calculation formula database 40 shown in Table 6 is used, based on the calculation formula of the virtual flow meter VFS3 corresponding to the opening / closing pattern 4, as follows. Is calculated.

VFS3 = + FS6-VFS5
Further, when the inventory amount of the tank T7 is increased, the calculation formula of the virtual flow meter VFS4,
VFS4 = + TF1
Based on the above, the flow value of the virtual flow meter is calculated.

On the other hand, when the inventory amount of the tank T7 decreases, the calculation formula of the virtual flow meter VFS5,
VFS5 = -TF1
Based on the above, the flow value of the virtual flow meter is calculated.

That is, the flow value of the virtual flow meter VFS4 represents an increase in the stock amount of the tank T7, and the flow value of the virtual flow meter VFS5 represents a decrease of the stock amount of the tank T7.
In this way, by registering the processing conditions and virtual flow meter arithmetic expressions corresponding to the transfer system in the database, respectively, based on the increase or decrease of the flow rate or inventory quantity measured by the existing flow meter or inventory quantity measuring device. In addition, it is possible to quickly and accurately grasp the flow rate flowing through a piping line that does not have a flow meter and the flow rate corresponding to the job.

  The preferred embodiment of the present invention has been described above, but the present invention is not limited to this. For example, in the above-described embodiment, the case of the oil manipulation operation in the refinery has been described as an example. If it is fluid, it is not limited to petroleum products. For example, liquids such as liquefied petroleum gas, liquid ammonia, organic solvents, gases such as natural gas and hydrogen, solids having plasticity such as fresh concrete, powders such as flour and cement Various modifications can be made without departing from the object of the present invention, such as being applicable to a transfer system that handles fluid such as particles.

FIG. 1 is a schematic view of a first transfer system to which a virtual flow meter monitor system of the present invention is applied. FIG. 2 is a system schematic diagram for explaining the schematic operation of the virtual flowmeter monitor system of the present invention. FIG. 3 is a system configuration diagram illustrating the system configuration of the virtual flowmeter monitor system of the present invention. FIG. 4 is a schematic diagram of the second transfer system 13 to which the virtual flowmeter monitor system of the present invention is applied. FIG. 5 is a schematic diagram of the second transfer system 13 to which the virtual flowmeter monitor system of the present invention is applied. FIG. 6 is a schematic configuration diagram showing a piping network around an off-site storage tank group in a refinery. FIG. 7 is a schematic configuration diagram showing a piping network around an off-site pump group in a refinery. FIG. 8 is a schematic diagram showing a system configuration of a conventional oil manipulation job system.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Virtual flow meter monitor system 12 Transfer system 14 Transfer system 16 Piping 18 Piping 20 Piping 22 Piping 24 Piping 26 Piping 28 Piping 30 Process computer 31 Process condition pattern formation monitor 32 Virtual flow meter value calculation monitor 34 Valve equipment information database 36 Flow meter Equipment information database 38 Processing condition establishment pattern database 40 Virtual flow meter arithmetic expression database 100 Oil handling job system 102 Piping 104 Piping 106 Piping B1 Branching B2 Branching B3 Branching FS1 Flow meter FS2 Flow meter FS3 Flow meter FS4 Flow meter FS5 Flow meter FS6 Flow rate Meter FS10 Flow meter FS11 Flow meter JOB1 Job JOB2 Job JOB3 Job JOB4 Job JOB5 Job JOB6 Job JOB10 Job JOB11 Job S1 Device S2 Device S Device S10 Device T1 Tank T2 Tank T3 Tank T4 Tank T5 Tank T10 Tank T11 Tank TF1 Inventory quantity measuring device V1 Valve V2 Valve V3 Valve V4 Valve V5 Valve V6 Valve V7 Valve V8 Valve V10 Automatic valve V11 Automatic valve V12 Automatic valve VFS1 Virtual flow rate Meter VFS2 Virtual flow meter VFS3 Virtual flow meter VFS4 Virtual flow meter VFS5 Virtual flow meter

Claims (14)

Multiple piping lines,
At least one valve provided on the piping line;
At least one flow meter provided on the piping line;
In a fluid transfer system comprising at least
Valve opening / closing state acquisition means for acquiring the opening / closing state of the valve;
Flow value acquisition means for acquiring a flow value from the flow meter;
With
Compare the valve opening / closing state acquired by the valve opening / closing state acquisition means with a plurality of valve opening / closing patterns registered in advance,
Based on the calculation formula registered in advance in association with the matched valve opening / closing pattern and the flow rate value acquired by the flow rate value acquisition means, the flow rate of the fluid flowing through the piping line in which no flow meter exists among the piping lines is calculated. A virtual flow meter monitor system characterized by calculating. In the transfer system, comprising at least one tank connected to the piping line,
The tank includes an inventory amount acquisition means for acquiring an inventory amount of fluid in the tank,
Based on the calculation formula registered in advance in association with the matched valve opening / closing pattern, the flow rate value acquired by the flow rate value acquisition unit, and the inventory amount acquired by the inventory amount acquisition unit, among the piping lines The virtual flow meter monitoring system according to claim 1, wherein the flow rate of the fluid flowing through the piping line where no flow meter is present is calculated.   The virtual flowmeter monitor system according to claim 1, further comprising a process computer, wherein the flow rate is calculated by the process computer.   The virtual flowmeter monitor system according to claim 3, wherein the process computer has a valve device information database.   The virtual flowmeter monitor system according to claim 4, wherein the valve open / closed state acquired by the valve open / closed state acquisition means is registered in the valve device information database.   6. The virtual flow meter monitoring system according to claim 3, wherein the process computer has a flow meter device information database.   The virtual flow meter monitor system according to claim 6, wherein the flow value acquired by the flow value acquisition unit is registered in the flow meter device information database.   8. The virtual flow meter monitor system according to claim 6, wherein the stock amount acquired by the stock amount acquisition unit is registered in the flow meter device information database.   The virtual flowmeter monitor system according to claim 3, wherein the process computer has the valve opening / closing pattern as a database.   The virtual flowmeter monitor system according to claim 3, wherein the process computer has a calculation formula associated with the valve opening / closing pattern as a database. The virtual flow meter monitor system according to claim 6, wherein the calculated flow rate is registered in the flow meter device information database.   The virtual flowmeter monitoring system according to any one of claims 1 to 11, wherein the valve open / close state acquisition means acquires the open / close state of the valve every predetermined time.   The virtual flow meter monitoring system according to claim 1, wherein the valve is at least one of a manual valve, an automatic valve, and a flow control valve.   The virtual flow meter monitoring system according to claim 1, wherein the transfer system is provided off-site of a refinery.

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