A Coriolis mass flowmeter on-site detection system and detection method

Abstract

The present invention discloses a Coriolis mass flowmeter field detection system and detection method, the system includes a host computer, a data collector, a signal generator and a power supply. The host computer, the signal generator and the power supply are all electrically connected to the measured flow transmitter, and the data collector is electrically connected to the host computer. The present invention obtains environmental information by the data collector, and then the host computer determines the possibility of failure of each device according to the environmental information. When there is an abnormality in the output of the measured flow transmitter, the technician can be guided to start troubleshooting from the device with the highest possibility of failure, which can greatly improve the detection efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of metering equipment, and in particular to an on-site detection system and method for a Coriolis mass flowmeter. Background Art

[0002] Coriolis Mass Flowmeter (CMF) is a high-end fluid metering device, which is known for its high precision and high reliability, so its application areas are becoming more and more extensive.

[0003] CMF is a kind of metering equipment, so it also needs regular or irregular inspection and maintenance to ensure its good working condition. Since CMF is installed on various equipment, technicians are required to bring inspection equipment to the site for inspection and measure various data to determine the operating status of CMF. If CMF fails, technicians are required to quickly and accurately determine the type of failure.

[0004] Invention patent application CN102589659A discloses a Coriolis mass flowmeter field measurement system and its detection method, which detects the Coriolis mass flowmeter on site and replaces the equipment that may cause problems with standard equipment to determine the location of the failure. This method has the advantage of on-site detection, and does not need to disassemble the mass flowmeter for testing in the laboratory, which improves the detection efficiency. However, the replacement order used in this patent is fixed, so no matter where the failure occurs, it needs to be replaced in the set order, and the actual detection efficiency is still not high enough. Summary of the invention

[0005] The embodiments of the present invention provide a Coriolis mass flowmeter on-site detection system and detection method, which are used to solve the problem of low detection efficiency caused by the need to replace devices in sequence during the detection process of the Coriolis mass flowmeter in the prior art.

[0006] On the one hand, an embodiment of the present invention provides a Coriolis mass flowmeter field detection system, including a host computer, a data collector, a signal generator and a power supply, the host computer, the signal generator and the power supply are all electrically connected to a flow transmitter to be measured, and the data collector is electrically connected to the host computer;

[0007] The data collector is used to obtain environmental data. The host computer determines the possibility of a fault based on the environmental data and sorts the equipment that may fail according to the possibility of failure.

[0008] When the host computer determines that the output of the measured flow transmitter is abnormal, it generates a prompt message that the device with the highest possibility of failure is faulty. When the device with the highest possibility of failure is replaced by a standard device, the host computer determines again whether the output of the measured flow transmitter is normal. If the output is abnormal, the host computer generates a prompt message that the device with the second highest possibility of failure is faulty. When the device with the second highest possibility of failure is replaced by a standard device, the host computer determines again whether the output of the measured flow transmitter is normal until the actual faulty device is determined.

[0009] In a possible implementation, the equipment that may fail includes: a power supply, a field transmission cable connecting a signal generator and a measured flow transmitter, and a field power supply connection line connecting a power supply and a measured flow transmitter.

[0010] In a possible implementation, the environmental data acquired by the data collector includes: the model and usage time of the power supply, the model and usage time of the on-site transmission cable, and the model and usage time of the on-site power connection line.

[0011] In one possible implementation, the data collector includes a data input device, which responds to the user's input operation to obtain the model and usage time of the power supply, the model and usage time of the field transmission cable, and the model and usage time of the field power connection line.

[0012] In a possible implementation, the environmental data also includes: the temperature and humidity of the environment in which the power source is located, the temperature and humidity of the environment in which the on-site transmission cable is located, and the temperature and humidity of the environment in which the on-site power connection line is located.

[0013] In one possible implementation, the data collector includes multiple temperature and humidity sensors, which are respectively arranged in the environment where the power supply is located, the environment of the on-site transmission cable, and the environment where the on-site power connection line is located. The temperature and humidity sensors are used to collect the temperature and humidity of the environment where the power supply is located, the temperature and humidity of the on-site transmission cable environment, and the temperature and humidity of the environment where the on-site power connection line is located.

[0014] In a possible implementation, the host computer includes a display device, and the display device is used to display prompt information.

[0015] On the other hand, the present invention also provides a Coriolis mass flowmeter on-site detection method, comprising:

[0016] Obtain environmental data;

[0017] Determine the probability of a fault based on environmental data and sort the equipment that may fail according to the probability of failure;

[0018] When it is determined that the output of the measured flow transmitter is abnormal, a prompt message is generated indicating that the device with the highest probability of failure is faulty;

[0019] When the device with the highest probability of failure is replaced by a standard device, confirm again whether the output of the measured flow transmitter is normal;

[0020] If the output of the measured flow transmitter is abnormal, a prompt message is generated indicating that the device with the second highest probability of failure is faulty;

[0021] When the device with the second highest probability of failure is replaced by the standard device, confirm again whether the output of the measured flow transmitter is normal until the actual failed device is determined.

[0022] A Coriolis mass flowmeter on-site detection system and detection method in the present invention has the following advantages:

[0023] The host computer determines the possibility of failure of each device based on environmental information. When there is an abnormality in the output of the measured flow transmitter, it can guide technicians to start troubleshooting from the device with the highest possibility of failure, which can greatly improve detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A functional module diagram of a Coriolis mass flowmeter field detection system provided by an embodiment of the present invention;

[0026] Figure 2 A flow chart of a Coriolis mass flowmeter on-site detection method provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Figure 1A functional module diagram of a Coriolis mass flowmeter field detection system provided by an embodiment of the present invention. A Coriolis mass flowmeter field detection system provided by an embodiment of the present invention comprises: a host computer 100, a data collector 110, a signal generator 120 and a power supply 130, wherein the host computer 100, the signal generator 120 and the power supply 130 are all electrically connected to a flow transmitter 200 to be measured, and the data collector 110 is electrically connected to the host computer 100;

[0029] The data collector 110 is used to obtain environmental data, and the host computer 100 determines the possibility of a fault according to the environmental data, and sorts the equipment that may fail according to the possibility of the fault;

[0030] When the host computer 100 determines that the output of the measured flow transmitter 200 is abnormal, it generates a prompt message that the device with the highest possibility of failure is faulty. When the device with the highest possibility of failure is replaced by a standard device, the host computer 100 determines again whether the output of the measured flow transmitter 200 is normal. If the output is abnormal, the host computer 100 generates a prompt message that the device with the second highest possibility of failure is faulty. When the device with the second highest possibility of failure is replaced by a standard device, the host computer 100 determines again whether the output of the measured flow transmitter 200 is normal until the device that actually fails is determined.

[0031] Exemplarily, the host computer 100 determines whether the output of the measured flow transmitter 200 is normal, which belongs to the prior art and will not be described in detail in the present invention. Since all electrical and electronic equipment have a service life, the stability of these devices will decrease when the environment is harsh or the use time is long, and the stability will decrease to a certain extent, which will cause the equipment to fail. Since there are many devices connected to the measured flow transmitter 200, there are also many factors that need to be checked. If the fixed order in the prior art is checked, more test pieces will be needed, resulting in low detection efficiency. The present invention determines the possibility of failure of each device based on environmental data, and guides technicians to check the equipment in order from high to low probability of failure, which can greatly improve the detection efficiency.

[0032] In a possible embodiment, the equipment that may fail includes: the power supply 130, a field transmission cable connecting the signal generator 120 and the measured flow transmitter 200, and a field power connection line connecting the power supply 130 and the measured flow transmitter 200.

[0033] For example, when the power supply 130 fails, it can be replaced with a standard power supply, which is a UPS (Uninterruptible Power Supply). The field transmission cable can be replaced with a standard transmission cable, and the field power connection cable can be replaced with a standard power connection cable. It should be understood that the above-mentioned standard power supply, standard transmission cable and standard power connection cable all need to be tested before each field inspection to ensure a good use state.

[0034] In a possible embodiment, the environmental data acquired by the data collector 110 includes: the model and usage time of the power supply 130, the model and usage time of the on-site transmission cable, and the model and usage time of the on-site power connection line.

[0035] For example, the model and usage time of the equipment are basic data for determining working reliability. After the model of the equipment is determined, the materials, technology and other information used by the equipment can be determined based on the pre-stored equipment information. Then, the host computer 100 determines the working reliability of the equipment in combination with the usage time of the equipment, that is, the possibility of failure. For example, the material used by equipment A ages slowly, the technology used is relatively stable, and the usage time is relatively short, while the material used by equipment B ages quickly, the technology used is not stable, and the usage time is relatively long. Then the possibility of failure of equipment A is lower than that of equipment B.

[0036] In the embodiment of the present invention, the host computer 100 has a memory and a processor. The memory is used to store the information of all devices and related experimental data. The equipment information can be obtained according to the data provided by the equipment manufacturer, and the experimental data needs to be obtained by conducting a large number of experiments on various devices in the laboratory. The processor is used to generate prompt information according to the environmental data.

[0037] In a possible embodiment, the data collector 110 includes a data input device, which responds to the user's input operation to obtain the model and usage time of the power supply 130, the model and usage time of the field transmission cable, and the model and usage time of the field power connection line.

[0038] Exemplarily, the data input device may be a mechanical or touch input device, such as a keyboard or a touch pad.

[0039] In a possible embodiment, the environmental data further includes: the temperature and humidity of the environment in which the power source 130 is located, the temperature and humidity of the environment in which the on-site transmission cable is located, and the temperature and humidity of the environment in which the on-site power connection line is located.

[0040] Exemplarily, the data collector 110 includes multiple temperature and humidity sensors, which are respectively arranged in the environment where the power supply 130 is located, the environment of the on-site transmission cable, and the environment where the on-site power connection line is located. The temperature and humidity sensors are used to collect the temperature and humidity of the environment where the power supply 130 is located, the temperature and humidity of the on-site transmission cable environment, and the temperature and humidity of the environment where the on-site power connection line is located.

[0041] In the embodiment of the present invention, the temperature and humidity sensor for collecting the temperature and humidity of the environment in which the power supply 130 is located is directly installed on the housing of the power supply 130, and the temperature and humidity sensors for collecting the temperature and humidity of the field transmission cable and the field power connection line are respectively installed on the outer surfaces of the field transmission cable and the field power connection line. At the same time, there can be multiple temperature and humidity sensors arranged on the power supply 130, the field transmission cable, and the field power connection line, so that the collected temperature and humidity data are more accurate and reliable.

[0042] Although the model and usage time of the equipment can determine the possibility of equipment failure, these data alone cannot accurately determine the possibility of equipment failure. Therefore, temperature and humidity data are needed as auxiliary information to improve the accuracy of the determined possibility of failure. The impact of the temperature and humidity of the equipment's environment on the possibility of equipment failure also needs to be obtained through a large number of experiments in the laboratory.

[0043] In a possible embodiment, the host computer 100 includes a display device, and the display device is used to display prompt information.

[0044] For example, the display device may be an LCD (Liquid Crystal Display) or an LED (Light Emitting Diode) display. In addition to the display device, the host computer 100 may also play prompt information through a speaker.

[0045] The present invention also provides a Coriolis mass flowmeter on-site detection method, such as Figure 2 The method comprises:

[0046] S200, obtaining environmental data;

[0047] S210, determining the possibility of a fault occurring according to the environmental data, and sorting the devices that may fail according to the possibility of the fault occurring;

[0048] S220, when it is determined that the output of the measured flow transmitter 200 is abnormal, a prompt message is generated indicating that the device with the highest probability of failure is faulty;

[0049] S230, after the device with the highest probability of failure is replaced by the standard device, it is determined again whether the output of the measured flow transmitter 200 is normal;

[0050] S240, if the output of the measured flow transmitter 200 is abnormal, a prompt message is generated indicating that the device with the second highest probability of failure is faulty;

[0051] S250. After the device with the second highest probability of failure is replaced by the standard device, it is determined again whether the output of the measured flow transmitter 200 is normal, until the device that actually fails is determined.

[0052] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0053] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A Coriolis mass flowmeter field detection system, characterized in that: include: A host computer (100), a data acquisition device (110), a signal generator (120) and a power supply (130), wherein the host computer (100), the signal generator (120) and the power supply (130) are all electrically connected to the measured flow transmitter (200), and the data acquisition device (110) is electrically connected to the host computer (100); The data collector (110) is used to acquire environmental data, and the host computer (100) determines the possibility of a fault occurring according to the environmental data, and sorts the equipment that may have a fault according to the possibility of the fault occurring; When the host computer (100) determines that the output of the measured flow transmitter (200) is abnormal, prompt information is generated indicating that the device with the highest probability of failure is faulty; when the device with the highest probability of failure is replaced by a standard device, the host computer (100) determines again whether the output of the measured flow transmitter (200) is normal; If the output is abnormal, the host computer (100) generates prompt information indicating that the device with the second highest probability of failure is faulty, and when the device with the second highest probability of failure is replaced by a standard device, the host computer (100) determines again whether the output of the measured flow transmitter (200) is normal until the device that actually fails is determined; The equipment that may fail comprises: the power supply (130), a field transmission cable connecting the signal generator (120) and the measured flow transmitter (200), and a field power connection line connecting the power supply (130) and the measured flow transmitter (200); the environmental data acquired by the data collector (110) comprises: the model and usage time of the power supply (130), the model and usage time of the field transmission cable, and the model and usage time of the field power connection line; after the model of the equipment is determined, the material and technical information used by the equipment is first determined based on the pre-stored equipment data, and then the host computer (100) determines the working reliability of the equipment, that is, the possibility of failure, in combination with the usage time of the equipment.

2. A Coriolis mass flowmeter on-site detection system according to claim 1, characterized in that: The data collector (110) comprises a data input device, which obtains the model and usage time of the power source (130), the model and usage time of the on-site transmission cable, and the model and usage time of the on-site power connection line in response to a user's input operation.

3. A Coriolis mass flowmeter on-site detection system according to claim 1, characterized in that: The environmental data also includes: the temperature and humidity of the environment in which the power source (130) is located, the temperature and humidity of the environment in which the on-site transmission cable is located, and the temperature and humidity of the environment in which the on-site power connection line is located.

4. A Coriolis mass flowmeter on-site detection system according to claim 3, characterized in that: The data collector (110) includes a plurality of temperature and humidity sensors, which are respectively arranged in the environment where the power supply (130) is located, the environment where the on-site transmission cable is located, and the environment where the on-site power connection line is located. The temperature and humidity sensors are respectively used to collect the temperature and humidity of the environment where the power supply (130) is located, the temperature and humidity of the environment where the on-site transmission cable is located, and the temperature and humidity of the environment where the on-site power connection line is located.

5. A Coriolis mass flowmeter on-site detection system according to claim 1, characterized in that: The host computer (100) comprises a display device, and the display device is used to display the prompt information.

6. A detection method applied to a Coriolis mass flowmeter field detection system according to any one of claims 1 to 5, characterized in that: include: Obtain environmental data; Determine the possibility of a fault occurring according to the environmental data, and sort the devices that may fail according to the possibility of the fault occurring; When it is determined that the output of the measured flow transmitter (200) is abnormal, a prompt message is generated indicating that a device with the highest probability of failure is faulty; After the device with the highest probability of causing a fault is replaced by a standard device, determining again whether the output of the measured flow transmitter (200) is normal; If the output of the measured flow transmitter (200) is abnormal, a prompt message is generated indicating that a device with the second highest probability of failure is faulty; When the device with the second highest probability of failure is replaced by a standard device, it is determined again whether the output of the measured flow transmitter (200) is normal, until the device that actually fails is determined.

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