Flow computer calibrating device

Abstract

The utility model discloses a flow computer calibrating device. Comprising a mainboard which is respectively connected with a display screen module, a virtual instrument output module and a timing switch output module and is used for detecting detection data aiming at a flow computer; the display screen module communicates with the mainboard through an interface and is used for displaying a detection result of the mainboard; the timing switch output module is respectively connected with the standard timer and a switch signal acquisition channel in the flow computer, and is used for sending a timing starting signal and / or a timing stopping signal to the standard timer and the switch signal acquisition channel; and the virtual instrument output module is connected with other signal acquisition channels except the switching signal acquisition channel in the flow computer, and is used for sending instrument output constant value input signals to other signal acquisition channels so as to verify the flow computer and improve the measurement precision of the flow computer.

Description

Technical Field

[0001] This application relates to the technical field of flow computers, and particularly to a flow computer calibration device. Background Art

[0002] A flow computer is a device that calculates and indicates parameters such as flow rate under standard reference conditions, and is mainly used for the metering of hydrocarbon liquids and gases. It calculates the transported volume, mass, and energy flow rates using AGA, ISO, and API standards. The existing calibration of flow computers can only achieve the calibration of the frequency and current of the flow computer, but the actual application of flow computers uses digital communication, which results in inconsistency between calibration and use, leading to unsatisfactory calibration effects and large errors in calibration results. Summary of the Utility Model

[0003] The purpose of the embodiments of this application is to provide a flow computer calibration device to solve the problems of low detection accuracy and large errors in the existing technology for flow computer detection.

[0004] To achieve the above purpose, the first aspect of this application provides a flow computer calibration device, which includes:

[0005] A main board, which is respectively connected to a display screen module, a virtual instrument output module, and a timing switch output module, and is used to detect the detection data for the flow computer;

[0006] The display screen module communicates with the main board through an interface and is used to display the detection results of the main board;

[0007] The timing switch output module is respectively connected to a standard timer and the switch signal acquisition channel in the flow computer, and is used to send a start timing signal and / or a stop timing signal to the standard timer and the switch signal acquisition channel;

[0008] The virtual instrument output module is connected to other signal acquisition channels in the flow computer except the switch signal acquisition channel, and is used to send detection signals to other signal acquisition channels.

[0009] In the embodiments of this application, the device further includes: a housing, and the main board, the display screen module, the timing switch output module, and the virtual instrument output module are all encapsulated in the housing.

[0010] In the embodiments of this application, the material of the housing is any one of plastic or metal.

[0011] In the embodiments of this application, the display screen module includes a human-machine interface and a screen. Among them, the human-machine interface is used to realize human-machine interaction, and the screen is used to display the detection results of the main board.

[0012] The second aspect of the present application provides a flow computer verification system, which includes:

[0013] The above-mentioned flow computer verification device;

[0014] A standard timer, which is connected to the timing switch output module and is used to receive the start timing signal and / or stop timing signal sent by the timing switch output module.

[0015] In an embodiment of the present application, the system further includes: a computer, which has a standard calculation software built in and is used to determine the timing accuracy of the flow computer according to the detection signal of the flow computer verification device, the timing signal of the standard timer, and the detection result of the flow computer.

[0016] In an embodiment of the present application, the system further includes: a flow computer, which is connected to the flow computer verification device and is used to receive the detection signal sent by the flow computer verification device.

[0017] In an embodiment of the present application, the flow computer includes a switch signal acquisition channel, which is connected to the timing switch output module and is used to receive the start timing signal and / or stop timing signal sent by the timing switch output module.

[0018] In an embodiment of the present application, the flow computer further includes a flow signal acquisition channel, a temperature signal acquisition channel, a pressure signal acquisition channel, and a component signal acquisition channel that are connected to the virtual instrument output module. Among them, the flow signal acquisition channel is used to receive the flow signal sent by the virtual instrument output module, the temperature signal acquisition channel is used to receive the temperature signal sent by the virtual instrument output module, the pressure signal acquisition channel is used to receive the pressure signal sent by the virtual instrument output module, and the component signal acquisition channel is used to receive the component signal sent by the virtual instrument output module.

[0019] In an embodiment of the present application, the flow computer further includes a flow computer main board, which is respectively connected to the switch signal acquisition channel, the flow signal acquisition channel, the temperature signal acquisition channel, the pressure signal acquisition channel, and the component signal acquisition channel.

[0020] Through the above technical solution, the main board is respectively connected to the display module, the virtual instrument output module, and the timing switch output module, and is used to detect the detection data for the flow computer; the display module communicates with the main board through an interface and is used to display the detection result of the main board; the timing switch output module is respectively connected to the standard timer and the switch signal acquisition channel in the flow computer, and is used to send a start timing signal and / or a stop timing signal to the standard timer and the switch signal acquisition channel; the virtual instrument output module is connected to other signal acquisition channels in the flow computer except the switch signal acquisition channel, and is used to send an instrument output fixed value input signal to other signal acquisition channels to calibrate the flow computer and improve the measurement accuracy of the flow computer.

[0021] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent specific implementation part. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings are used to provide a further understanding of the embodiments of the present application, and constitute a part of the specification. Together with the following specific implementation manners, they are used to explain the embodiments of the present application, but do not constitute a limitation to the embodiments of the present application. In the drawings:

[0023] Figure 1 Schematically shows a structural block diagram of a flow computer calibration device according to an embodiment of the present application;

[0024] Figure 2 Schematically shows a schematic diagram of a flow computer calibration device according to an embodiment of the present application;

[0025] Figure 3 Schematically shows a structural block diagram of a flow computer calibration system according to an embodiment of the present application;

[0026] Figure 4 Schematically shows a schematic diagram of a flow computer calibration system according to an embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It should be understood that the specific implementation manners described herein are only used to explain and illustrate the embodiments of the present application, and are not used to limit the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0028] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of this application, then such directional indications are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture (as shown in the attached drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0029] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of this application, then such descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0030] Figure 1 The structural block diagram of a flow computer calibration device according to an embodiment of the present application is schematically shown. As Figure 1 shown, the flow computer calibration device 100 includes a main board 101, a display screen module 102, a timing switch output module 103, and a virtual instrument output module 104:

[0031] The main board 101, the main board 101 is respectively connected to the display screen module 102, the virtual instrument output module 104, and the timing switch output module 103, and is used to detect the detection data for the flow computer.

[0032] The display screen module 102 communicates with the main board 101 through an interface and is used to display the detection results of the main board 101.

[0033] The timing switch output module 103 is respectively connected to the standard timer and the switch signal acquisition channel in the flow computer, and is used to send a start timing signal and / or a stop timing signal to the standard timer and the switch signal acquisition channel.

[0034] The virtual instrument output module 104 is connected to other signal acquisition channels in the flow computer except the switch signal acquisition channel, and is used to send detection signals to other signal acquisition channels.

[0035] A flow computer refers to a device that calculates and indicates parameters such as flow rate under standard reference conditions, and is mainly applied to the metering of hydrocarbon liquids and gases. A flow computer calibration device may include a main board, a display screen module, a timing switch output module, and a virtual instrument output module. The main board is respectively connected to the display screen module, the virtual instrument output module, and the timing switch output module. Among them, the main board and the display screen module can communicate through an interface. The timing switch output module is respectively connected to a standard timer and a switch signal acquisition channel in the flow computer. The virtual instrument output module is connected to other signal acquisition channels in the flow computer except the switch signal acquisition channel. The main board can be used to detect the detection data for the flow computer; the display screen module can be used to display the detection results of the main board; the timing switch output module can be used to send a start timing signal and / or a stop timing signal to the standard timer and the switch signal acquisition channel; the virtual instrument output module can be used to send a detection signal to other signal acquisition channels.

[0036] For example, a flow computer calibration device may include a main board, a display screen module, a timing switch output module, and a virtual instrument output module. Among them, the main board and the display screen module communicate through an interface, and the main board and the timing switch output module, the virtual instrument output module can be connected through a backplane bus. The timing switch output module is respectively connected to a standard timer and a switch signal acquisition channel in the flow computer. Among them, the timing switch output module can perform digital communication with the standard timer and the switch signal acquisition channel in the flow computer. The virtual instrument output module can be connected to other signal acquisition channels in the flow computer except the switch signal acquisition channel. For example, the virtual instrument output module can be connected to a flow signal acquisition channel, a temperature signal acquisition channel, a pressure signal acquisition channel, and a component signal acquisition channel in the flow computer, and perform digital signal or analog signal communication.

[0037] In an embodiment of the present application, the display screen module includes a human-machine interface and a screen. Among them, the human-machine interface is used to realize human-machine interaction, and the screen is used to display the detection results of the main board.

[0038] A flow computer calibration device may include a display screen module. The display screen module may include a human-machine interface and a screen. Among them, the human-machine interface is used to realize human-machine interaction, and the screen is used to display the detection results of the main board.

[0039] In an embodiment of the present application, the device further includes: a housing, and the main board, the display screen module, the timing switch output module, and the virtual instrument output module are all encapsulated in the housing.

[0040] A flow computer calibration device may further include a housing, and the main board, the display screen module, the timing switch output module, and the virtual instrument output module are all encapsulated in the housing. In an embodiment of the present application, the material of the housing is any one of plastic or metal.

[0041] For example, as Figure 2 shown, the flow computer calibration device may include a main board, a timing start / stop output module, an instrument analog output module, a display module, and a housing. Among them, the main board, the timing start / stop output module, the instrument analog output module, and the display module are all encapsulated in the housing. The material of the housing is generally plastic or metal, which can protect the main board, the timing start / stop output module, the instrument analog output module, and the display module.

[0042] The main board and the display module can communicate through an interface, and the main board and the timing start / stop output module, the instrument analog output module can be connected through a backplane bus. The main board can be used to detect the rated detection data for the flow computer. For example, the main board can detect relevant human-computer interaction, detection parameter input, detection result display, virtual output of different types of instruments, calibration logic, etc. The display module can include a human-machine interface, a screen, and a screen driver, and can display the calibration output value and calibration status value of the main board on the screen. The timing start / stop output module can be connected to the standard timer and the switch signal acquisition channel of the flow computer, and can output accurate start / stop signals to trigger the flow computer, as well as the timing start signal and timing end signal of the standard timer. Among them, when the start / stop signal is at a high level, the timing starts, and when it is at a low level, the timing ends. The instrument analog output module can be used to simulate the output values of temperature instruments, pressure instruments, gas chromatographs, and flow meters. The instrument analog output module can be connected to the flow signal acquisition channel, temperature signal acquisition channel, pressure signal acquisition channel, and component signal acquisition channel of the flow computer, and output corresponding signals to the flow signal acquisition channel, temperature signal acquisition channel, pressure signal acquisition channel, and component signal acquisition channel. For example, the output of the temperature signal and pressure signal simulated by the instrument module output module can be through the HART (Highway Addressable Remote Transducer) protocol; the output signal of the flow meter simulated by the instrument module output module can be through a custom protocol, such as the MODBUS protocol (serial communication protocol); the output of the gas chromatograph simulated by the instrument module output module can be through the MODBUS protocol.

[0043] Figure 3 Schematically shows a structural block diagram of a flow computer calibration system according to an embodiment of the present application. As Figure 3 shown, the flow computer calibration system 300 includes:

[0044] A flow computer calibration device 100;

[0045] The standard timer 301 is connected to the timing switch output module and is used to receive the start timing signal and / or stop timing signal sent by the timing switch output module.

[0046] The flow computer calibration system may include a flow computer calibration device and a standard timer. The standard timer may be connected to the timing switch output module in the flow computer calibration device and is used to receive the start timing signal and / or stop timing signal sent by the timing switch output module.

[0047] In an embodiment of the present application, the system further includes: a computer with standard calculation software built therein, which is used to determine the timing accuracy of the flow computer according to the detection signal of the flow computer calibration device, the timing signal of the standard timer, and the detection result of the flow computer.

[0048] The flow computer calibration system further includes a computer with standard calculation software built therein. The computer is used to determine the timing accuracy of the flow computer according to the detection signal of the flow computer calibration device, the timing signal of the standard timer, and the detection result of the flow computer.

[0049] In an embodiment of the present application, the system further includes: a flow computer connected to the flow computer calibration device and used to receive the detection signal sent by the flow computer calibration device.

[0050] The flow computer calibration system further includes a flow computer. The flow computer is connected to the flow computer calibration device. The flow computer can receive the detection signal sent by the flow computer calibration device.

[0051] In an embodiment of the present application, the flow computer includes a switch signal acquisition channel connected to the timing switch output module and used to receive the start timing signal and / or stop timing signal sent by the timing switch output module.

[0052] The flow computer calibration system may include a flow computer, and the flow computer may include a switch signal acquisition channel. The switch signal acquisition channel is connected to the timing switch output module and is used to receive the start timing signal and / or stop timing signal sent by the timing switch output module.

[0053] In an embodiment of the present application, the flow computer further includes a flow signal acquisition channel, a temperature signal acquisition channel, a pressure signal acquisition channel, and a component signal acquisition channel connected to the virtual instrument output module. Among them, the flow signal acquisition channel is used to receive the flow signal sent by the virtual instrument output module, the temperature signal acquisition channel is used to receive the temperature signal sent by the virtual instrument output module, the pressure signal acquisition channel is used to receive the pressure signal sent by the virtual instrument output module, and the component signal acquisition channel is used to receive the component signal sent by the virtual instrument output module.

[0054] The flow computer further includes a flow signal acquisition channel, a temperature signal acquisition channel, a pressure signal acquisition channel, and a component signal acquisition channel connected to the virtual instrument output module. Among them, the flow signal acquisition channel is used to receive the flow signal sent by the virtual instrument output module, the temperature signal acquisition channel is used to receive the temperature signal sent by the virtual instrument output module, the pressure signal acquisition channel is used to receive the pressure signal sent by the virtual instrument output module, and the component signal acquisition channel is used to receive the component signal sent by the virtual instrument output module.

[0055] In the embodiment of the present application, the flow computer further includes a flow computer main board, and the flow computer main board is respectively connected to the switch signal acquisition channel, the flow signal acquisition channel, the temperature signal acquisition channel, the pressure signal acquisition channel, and the component signal acquisition channel.

[0056] The flow computer further includes a flow computer main board, and the flow computer main board is respectively connected to the switch signal acquisition channel, the flow signal acquisition channel, the temperature signal acquisition channel, the pressure signal acquisition channel, and the component signal acquisition channel.

[0057] For example, as Figure 4 shown, the flow computer calibration system includes a flow computer calibration device, a standard timer, a computer, and a flow computer. The flow computer calibration device is respectively connected to the computer, the standard timer, and the flow computer. The flow computer calibration device includes a calibration device main board, a timing switch output module, a virtual instrument output module, and a display screen module. The flow computer includes a switch signal acquisition channel, a flow signal acquisition channel, a temperature signal acquisition channel, a pressure signal acquisition channel, a component signal acquisition channel, and a flow computer main board.

[0058] Communication between the calibration device main board and the display screen module is through an interface. The calibration device main board is respectively connected to the timing switch output module and the virtual instrument output module through a backplane bus. The timing switch output module is respectively connected to the standard timer and the switch signal acquisition channel in the flow computer. The virtual instrument output module is respectively connected to the flow signal acquisition channel, the temperature signal acquisition channel, the pressure signal acquisition channel, and the component signal acquisition channel in the flow computer. Among them, the calibration device main board can detect the detection signal of the flow computer. The display screen module can be used to display the detection result of the calibration device main board. The timing switch output module can send start / stop signals to the switch signal acquisition channel, and send start timing signals and stop timing signals to the standard timer. The virtual instrument output module can output corresponding signals to the flow signal acquisition channel, the temperature signal acquisition channel, the pressure signal acquisition channel, and the component signal acquisition channel. The flow computer calibration device further includes a housing, and the calibration device main board, the timing switch output module, the virtual instrument output module, and the display screen module are all encapsulated in the housing.

[0059] The switch signal acquisition channel, flow signal acquisition channel, temperature signal acquisition channel, pressure signal acquisition channel, and component signal acquisition channel are all connected to the main board of the flow computer.

[0060] The computer obtains the temperature, pressure, flow rate, components, and cumulative flow rate of the flow computer through digital communication, and obtains the calculation results of the flow computer through the built-in standard calculation software. The calculation results are compared with the flow computer to determine the flow conversion accuracy and cumulative measurement accuracy of the flow computer.

[0061] The computer can also obtain the cumulative duration measured by the standard timer in a visual or digital communication manner, and compare the cumulative duration measured by the standard timer with the cumulative duration of the flow computer to obtain the cumulative timing measurement accuracy of the flow computer.

[0062] Through the above technical solutions, the flow computer can be calibrated in a timely manner, the detection accuracy of the flow computer is improved, and the detection error is reduced.

[0063] It should also be noted that the term "including", "comprising", or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, commodity, or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, commodity, or device. Without further limitations, the element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, commodity, or device including the element.

[0064] The above are only the embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

1. A flow computer calibration device, characterized in that The device includes: A main board, which is respectively connected to a display screen module, a virtual instrument output module, and a timing switch output module, and is used to detect the detection data for the flow computer; A display screen module, which communicates with the main board through an interface and is used to display the detection results of the main board; A timing switch output module, which is respectively connected to a standard timer and a switch signal acquisition channel in the flow computer, and is used to send a start timing signal and / or a stop timing signal to the standard timer and the switch signal acquisition channel; A virtual instrument output module, which is connected to other signal acquisition channels in the flow computer except the switch signal acquisition channel, and is used to send detection signals to other signal acquisition channels.

2. The flow computer calibration device according to claim 1, characterized in that The device further includes: A housing, in which the main board, the display screen module, the timing switch output module, and the virtual instrument output module are all encapsulated.

3. The flow computer calibration device according to claim 2, wherein The material of the housing is any one of plastic or metal.

4. The flow computer calibration device according to claim 1, wherein The display screen module includes a human-machine interface and a screen. Among them, the human-machine interface is used to realize human-machine interaction, and the screen is used to display the detection results of the main board.

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