JP2007298075A - Valve abnormality automatic testing device of liquid transferring device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a valve abnormality automatic testing device of a liquid transferring device capable of informing an abnormality detection result of a previously set valve opening and closing program by opening and closing a related valve in forming a transferring route of liquid. <P>SOLUTION: This valve abnormality automatic testing device of liquid transferring device is characteristically furnished with a valve output reflected processing part to output opening and closing states of a valve by previously set opening and closing commands of a testing objective valve, a valve state changing processing part to change the opening and closing states of the valve in a periphery of the transferring route regardless of the valve opening and closing commands in forming the transferring route and a transfer control abnormality detection part to detect abnormality of the valve opening and closing commands by output of the valve state changing processing part. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a valve abnormality automatic test apparatus for a liquid transfer apparatus for automatically testing a valve abnormality of a liquid transfer apparatus for transferring liquid between a plurality of tanks connected by a transfer facility in which pipes for transferring the liquid are connected in a network. It is about.

  In a liquid transfer device such as a chemical factory or a beer factory, there are many combinations when transferring liquid between a plurality of tanks, and a plurality of valves are controlled when transferring the liquid to the tank. In addition, there is a valve that must never be opened to prevent foreign matter from entering and flowing out during the transfer of liquid, and there is also a valve that does not cause an abnormality even if it is opened regardless of the transfer line. In the opening / closing test of these valves, it is necessary to test not only the valves on the transfer line but also the surrounding related valve groups to determine whether or not an abnormality occurs.

  In the conventional valve abnormality test, a test operator opens and closes all related valves one by one to test whether or not an abnormality is detected, which takes a lot of time.

  In addition, as an information processing system capable of testing a test target program in which an operation by a tester intervenes, output information and input information can be recorded including the generation order, and the recorded output information and input information are also recorded. Based on the above, a program test method has been proposed in which a test target program in which an operation by a tester intervenes can be automatically performed without actually being operated by the tester (for example, Patent Document 1). reference).

Japanese Unexamined Patent Publication No. 7-21058 (paragraph 0007, FIG. 1)

  The conventional valve abnormality test requires a lot of time because the tester opens and closes all related valves one by one and tests whether abnormality is detected, and there are many combinations. Because of the large number of valves, there is a problem that the valve abnormality test is performed only for the representative valve of the representative pattern, and the abnormality test of all the patterns and all the valves is not completed.

  Further, the program test method proposed in Patent Document 1 requires a tester's operation for registering a test procedure in the control means every time a different test target program is performed when testing the test target program.

  The present invention has been made to solve the above-described problems, and a first object is to open and close related valves when creating a transfer route, and to test the opening / closing abnormality detection results of preset test target valves. It is an object of the present invention to obtain a valve abnormality automatic test device for a liquid transfer device that can notify a practitioner.

  The second object is to obtain a valve abnormality automatic test device for a liquid transfer device that can automatically output test results as a test result table to a printer or a file.

  A third object is to obtain a valve abnormality automatic test device for a liquid transfer device that can perform an abnormality test by changing a valve for performing an abnormality test in accordance with a transfer route to be created. .

  A fourth object is to obtain a valve abnormality automatic test device for a liquid transfer device capable of automatically changing transfer combinations between tanks and automatically executing transfer control.

  The valve abnormality automatic test device for a liquid transfer device according to the present invention is a valve abnormality test for a liquid transfer device in which a plurality of tanks are connected in a mesh pattern by piping, and liquid is transferred between the tanks via the piping by opening and closing the valves. In the apparatus, the valve output loopback processing unit that outputs the valve open / closed state according to a preset valve open / close command, and the valve state around the transfer route when the transfer route is created regardless of the valve open / close command. A valve state change processing unit that changes the open / close state of the valve, and a transfer control abnormality detection unit that detects an abnormality of the valve opening / closing command based on an output of the valve state change processing unit are provided.

  According to the present invention, it is possible to confirm the opening / closing abnormality of the valve involved in the transfer route when creating the liquid transfer route. Conventionally, during transfer control, a test operator manually opens / closes a plurality of test target valves to check whether an abnormality has been detected. By automating the valve abnormality test that has been determined, test man-hours can be reduced and test errors can be eliminated.

  Preferred embodiments of a valve abnormality automatic testing apparatus for a liquid transfer apparatus according to the present invention will be described below with reference to the accompanying drawings.

Embodiment 1 FIG.
Hereinafter, Embodiment 1 of the present invention will be described by taking as an example a case where it is applied to a valve abnormality automatic test device for a beer transfer device in a beer production facility.

  FIG. 1 is a diagram illustrating a process for producing beer in a beer factory, FIG. 2 is a diagram illustrating a configuration example of a liquid transfer facility between a fermentation tank group and a storage tank group, and FIG. 3 is a diagram illustrating a route switching valve. is there.

  The beer manufacturing process in the beer factory has a manufacturing process flow as shown in FIG. 1. In the fermentation process of the manufacturing process, the beer is transferred from the preparation process to the fermentation tank and fermented for about three months, and then fermented. The liquid is transferred from the tank to the storage tank, aged for about one month in the storage tank, transferred to the filtration step and led to a filling process.

  A plurality of fermentation tanks are installed in the fermentation process of such a beer production facility, and a plurality of storage tanks are installed in the aging process. Between the fermentation tank and the storage tank, liquids are added according to the progress of fermentation or aging in each tank. A structure in which a plurality of transfer pipes are connected in a mesh between the fermentation tank group and the storage tank group so that the transfer can be performed from any fermentation tank to any storage tank. Connected by the transfer equipment.

  The structural example of the liquid transfer equipment between a fermentation tank group and a storage tank group is shown in FIG. FIG. 2 shows a case where there are three fermentation tanks, three storage tanks, and three transfer pipes. In FIG. 2, the liquid transfer equipment includes fermentation tanks A, B, C, storage tanks D, E, F, fermentation tanks A, B, C, branch transfer pipes 1A, 1B, 1C, fermentation tanks A, B. , C side main transfer pipes 2A, 2B, 2C, storage tanks D, E, F main transfer pipes 3A, 3B, 3C, storage tanks D, E, F side branch transfer pipes 4A, 4B, 4C, main transfer Route switching pipes 5A, 5B, and 5C are provided between the pipes 2A, 2B, and 2C and the main transfer pipes 3A, 3B, and 3C.

  Further, the transfer pipes such as the positions where the branch transfer pipes 1A, 1B and 1C intersect with the main transfer pipes 2A, 2B and 2C and the positions where the branch transfer pipes 4A, 4B and 4C intersect with the main transfer pipes 3A, 3B and 3C, etc. Route switching valves V1 to V18 are installed at the crossing positions. As shown in FIG. 3, the route switching valves V1 to V18 are connected to both crossed transfer pipes, and both transfer pipes communicate with each other at the crossing portion by the open signal, and the crossover of the transfer pipe crossed by the close signal. In a state where there is no flow between them, the upper and lower transfer pipes are connected by an open signal, the liquid flows in all directions a, b, c and d, the upper and lower transfer pipes are independent by a closed signal, and the liquid is a Or it is comprised with the four-way valve which can form a flow path so that it may flow only to the direction of b.

  Furthermore, stop valves S1 to S12 for controlling the flow state and stop state of the main transfer pipe in the portion where each route switching valve is arranged are arranged, and each of the route switching pipes 5A, 5B, and 5C includes: Stop valves S13 to S15 for controlling the flow state and stop state of the route switching pipes 5A, 5B, and 5C are arranged. These stop valves S <b> 1 to S <b> 15 are configured to stop the flow when the signal is closed and to enter the flow state when the signal is open. The liquid is transferred through each transfer pipe by a transfer means (not shown) such as a pump.

  In this configuration, the transfer direction is from the fermentation tanks A, B, C to the storage tanks D, E, F. Hereinafter, the fermentation tanks A, B, C are referred to as transfer source tanks A, B, C and stored. The tanks D, E, and F will be described as transfer destination tanks D, E, and F.

  As shown by the arrows in FIG. 2, when liquid is transferred from the transfer source tank B to the transfer destination tank D, the route switching valve V5, the stop valve S14, and the route switching valve V11 are opened. Further, in order to prevent the liquid to be transferred from mixing with other contents, for example, the route switching valve V4 must never be opened, but even if the route switching valve V7 is opened, the transfer source Regarding the liquid transfer from the tank B to the transfer destination tank D, there is no fear of mixing. In this way, there are valves that must never be opened to prevent contamination and outflow of foreign matters, and there are valves that do not make any abnormality even if they are opened regardless of the transfer line. Therefore, in the opening / closing test of these valves, it is necessary to test whether or not an abnormality occurs by opening / closing not only the valves on the transfer line but also the surrounding related valve groups.

  Next, an automatic valve abnormality test apparatus that constitutes a main part of the present embodiment will be described. FIG. 4 is a block diagram showing an embodiment of an automatic valve abnormality test device for automatically testing the opening / closing abnormality of a valve group when beer as a transfer object is transferred from a transfer source tank to a transfer destination tank. In this figure, the valve abnormality automatic test device 30 is composed of a transfer control time route creation determination unit 31, a valve state change processing unit 32, a valve output return processing unit 33, and a transfer control abnormality detection unit 34. . The transfer control abnormality detection unit 34 includes a display unit 35.

  The route creation determination unit 31 at the time of transfer control is a functional part that monitors the control steps registered in advance in the transfer control unit 36 by the tester according to the transfer control route and determines that the transfer route has been created. Here, as the control step, the first step can be started, the second step can be controlled during line creation, the third step can be completed, and the fourth step can be transferred to beer. In this case, it is determined that the transfer route has been created by detecting the completion of the line creation in the third step.

  Further, the valve state change processing unit 32 receives a transfer route creation determination command from the transfer control route creation determination unit 31, and displays the opening / closing states of a plurality of valves registered in advance in the transfer control unit 36. It is a functional part that changes regardless of the opening / closing command and outputs the changed state to the valve output return processing unit 33 as the opening / closing command.

  The valve output folding processing unit 33 is a functional part that receives an opening / closing command registered in advance from the transfer control unit 36 and returns an answer to the valve opening / closing state. If the opening / closing command from the transfer control unit 36 has been changed by the valve state change processing unit 32 in the valve output return processing unit 33, the changed state is returned to the transfer control unit 36 as an answer.

  The control logic of the valve state change processing unit 32 and the valve output return processing unit 33 is configured as shown in FIG. That is, an open command 40 from the transfer control unit 36 and an open command 41 from the valve state change processing unit 32 are connected in parallel, and an open command 40 from the transfer control unit 36 and an open command 41 from the valve state change processing unit 32 are connected. The closing command 42 from the valve state change processing unit 32 is connected in series to the parallel connection. Then, the output of the control logic is output as a valve state 43 to the transfer control unit 36 as an open / close state answer.

  The transfer control abnormality detection unit 34 is a functional part that detects a command abnormality from the transfer control unit 36 according to the valve open / closed state of the valve state change processing unit 32, and displays this abnormality information on the display unit 35.

  The valve abnormality automatic test apparatus according to Embodiment 1 is configured as described above, and the operation thereof will be described with reference to the flowchart of FIG. That is, FIG. 6 shows a flowchart of control operations of the transfer control time route creation determination unit 31, the valve state change processing unit 32, and the transfer control abnormality detection unit 34 of the automatic valve abnormality test device.

  First, the route creation determination unit 31 at the time of transfer control determines that the creation of the transfer route has been completed by the control step of the transfer control unit 36, that is, the control step registered in advance in the transfer control unit 36, and the valve abnormality automatic test. Determine the start. (ST1)

  Next, normally, when the transfer control unit 36 detects an abnormality, it shifts to the abnormal process and closes the transfer line. Therefore, the transfer control time route creation determining unit 31 does not shift to the abnormal process. The abnormality processing function of the transfer control unit 36 is invalidated. (ST2)

  Next, the transfer control route creation determination unit 31 reads a valve registered in advance in the transfer control unit 36, that is, a valve test data flag of a valve to be tested. (ST3)

  Next, the transfer control route creation determination unit 31 determines whether all the specified valves have been opened and closed. If all the valves have been opened and closed, the process proceeds to step 11 and the abnormality control function of the transfer control unit 36 is performed. Enable and exit. Otherwise, go to step 5. (ST4)

  Next, the transfer control route creation determination unit 31 instructs the valve state change processing unit 32 to change the valve state from the valve opening / closing state read in Step 3 to the valve state change process. The unit 32 changes the valve state to the open state by this command. (ST5)

  Next, the abnormality detection state of the transfer control is read by the transfer control abnormality detection unit 34 (ST6) and displayed on the display unit 35. (ST7)

  Next, the transfer control route creation determination unit 31 instructs the valve state change processing unit 32 to change the valve state to the closed state from the valve test data read in step 3, and the valve state change processing unit In response to this command, 32 changes the valve state to the closed state. (ST8)

  Next, the abnormality detection state of the transfer control is read by the transfer control abnormality detection unit 34 (ST9) and displayed on the display unit 35. (ST10)

  When the above operation is repeated and all the valves are opened and closed, the process proceeds to step 11 and the abnormality processing function of the transfer control unit 36 is enabled and the process ends.

  The valve abnormality automatic test apparatus according to the first embodiment operates as described above, and can confirm the opening / closing abnormality of the valve involved in the transfer route when creating the transfer route. Conventionally, there are multiple test subjects at the time of transfer control. By automating the valve abnormality test that has been manually opened and closed each time to determine whether or not an abnormality has been detected, it is possible to reduce test man-hours and eliminate test mistakes.

Embodiment 2. FIG.
Next, Embodiment 2 will be described with reference to FIG. FIG. 7 is a flowchart for explaining the second embodiment. The configuration of the valve abnormality automatic test apparatus is the same as that described in the first embodiment, and a description thereof will be omitted.

  In the first embodiment, the transfer control abnormality detection unit 34 only reads the abnormality detection state of the transfer control and displays it on the display unit 35. However, in the second embodiment, as shown in ST70 or ST71 of FIG. In addition, since the test results can be saved in a file as a test result table and output to a printer, the evidence of the test results can be left and the test can be performed unattended. Since other operations are the same as those in the first embodiment, the description thereof is omitted by giving the same reference numerals.

Embodiment 3 FIG.
Next, Embodiment 3 will be described with reference to FIG. FIG. 8 is a flowchart for explaining the third embodiment. The configuration of the valve abnormality automatic test apparatus is the same as that described in the first embodiment, and a description thereof will be omitted.

  In the first embodiment or the second embodiment, in step 3, one valve pattern file determined at the time of creating the transfer route is read and a valve abnormality test is performed. In the third embodiment, FIG. As shown, in the operation of the first embodiment or the second embodiment, when the transfer route creation is completed, a pattern NO indicating what transfer route is created is read (ST80), and the valve is matched to the read pattern NO. By adding a process (ST81) for rereading the pattern file, it is possible to automatically perform a valve abnormality test with various transfer patterns.

Embodiment 4 FIG.
Next, a fourth embodiment will be described with reference to FIG. FIG. 9 is a flowchart for explaining the fourth embodiment. The configuration of the valve abnormality automatic test apparatus is the same as that described in the first embodiment, and a description thereof will be omitted.

  In the fourth embodiment, the following operation is added to the third embodiment. That is, in the third embodiment, the valve to be tested is changed according to the transfer pattern, but in the fourth embodiment, the transfer pattern is set as shown in FIG. 9 (ST90), and the transfer control is performed. A step for starting is provided (ST91). By this, the transfer pattern is automatically changed, and the transfer control is started, so that it is possible to automatically perform the abnormality test for all the transfer patterns and all the valves.

  In each of the above-described embodiments, the present invention is illustrated and described for the case where the invention is applied to a liquid transfer device in a beer factory, but can be applied to various liquid transfer devices such as a chemical transfer device in a chemical factory. It is obvious that the embodiments can be appropriately changed within the scope of the technical idea of the invention.

  The valve abnormality automatic test device for a liquid transfer device according to the present invention can be used for a facility for transferring a liquid between two or more tank groups in a chemical factory, a beer factory or the like.

It is a figure which shows Embodiment 1 of this invention, and is a figure explaining the process of beer manufacture in a beer factory. It is a figure which shows Embodiment 1 of this invention, and is a figure which shows the structural example of the liquid transfer equipment between a fermentation tank group and a storage tank group. It is a figure explaining the route switching valve in FIG. It is a figure explaining the valve abnormality automatic test apparatus which comprises the principal part of Embodiment 1 of this invention. It is a figure explaining the control logic of the valve state change part in FIG. 4, and a valve output return process. It is a flowchart which shows operation | movement of the valve abnormality automatic test apparatus by Embodiment 1 of this invention. It is a flowchart which shows operation | movement of the valve abnormality automatic test apparatus by Embodiment 2 of this invention. It is a flowchart which shows operation | movement of the valve abnormality automatic test apparatus by Embodiment 3 of this invention. It is a flowchart which shows operation | movement of the valve abnormality automatic test apparatus by Embodiment 4 of this invention.

Explanation of symbols

A, B, C Fermentation tank D, E, F Storage tank 1A, 1B, 1C, 4A, 4B, 4C Branch transfer pipe 2A, 2B, 2C, 3A, 3B, 3C Main transfer pipe 5A, 5B, 5C Route switching pipe V1 to V18 Route switching valve S1 to S15 Stop valve 30 Valve abnormality automatic test device 31 Route creation determination unit 32 for transfer control 32 Valve state change processing unit 33 Valve output return processing unit 34 Transfer control abnormality detection unit 35 Display unit 36 Transfer control unit

Claims (4)

In a valve abnormality automatic test apparatus of a liquid transfer device in which a plurality of tanks are connected in a mesh shape by piping, and liquid is transferred between the tanks via the piping by opening and closing the valve,
A valve output return processing unit that outputs the open / close state of the valve according to a preset open / close command of the test target valve;
A valve state change processing unit that changes the valve open / close state regardless of the valve open / close command when the transfer route is created, regardless of the valve open / close command.
An automatic valve abnormality test device for a liquid transfer device, comprising: a transfer control abnormality detection unit that detects an abnormality of the valve opening / closing command based on an output of the valve state change processing unit.   2. The valve abnormality automatic test apparatus for a liquid transfer apparatus according to claim 1, wherein an abnormality in the valve opening / closing command detected by the transfer control abnormality detection unit is output to an output means as a test result table.   3. The valve abnormality automatic test apparatus for a liquid transfer apparatus according to claim 1, wherein a valve to be tested can be changed according to transfer conditions.   4. The valve abnormality automatic test device for a liquid transfer device according to claim 1, wherein transfer control is executed by changing a transfer source tank and a transfer destination tank in the plurality of tanks.

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