CN114858318A - Wireless injection head load calibrator - Google Patents
Wireless injection head load calibrator Download PDFInfo
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- CN114858318A CN114858318A CN202110150209.6A CN202110150209A CN114858318A CN 114858318 A CN114858318 A CN 114858318A CN 202110150209 A CN202110150209 A CN 202110150209A CN 114858318 A CN114858318 A CN 114858318A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
- G01L1/225—Measuring circuits therefor
- G01L1/2262—Measuring circuits therefor involving simple electrical bridges
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The application discloses wireless injection head load calibrator, this wireless injection head load calibrator includes: pressure disk (3), hold and draw sensor (4), wireless transmission emitter (5), wireless receiving terminal, HMI digital display appearance, wherein, the pressure conversion that bears pressure disk (3) through holding and drawing sensor (4) becomes the signal of telecommunication, send signal of telecommunication wireless transmission to wireless receiving terminal through wireless transmission emitter (5), wireless receiving terminal transmits to HMI digital display appearance and stores and shows, the registration that shows HMI digital display appearance compares with the registration of data acquisition system's load, in order to realize the calibration of load parameter.
Description
Technical Field
The application relates to the technical field of well control, in particular to a wireless type injection head load calibrator.
Background
At present, the coiled tubing technology has undergone a vigorous development for more than twenty years, and has been widely applied to a plurality of operation fields such as drilling, well completion, oil production and the like. The injection head is used as a key component of continuous pipe operation equipment, the main function of the injection head is to safely and efficiently control the running in and running out of a continuous pipe, in order to ensure the safe and smooth running of the continuous pipe operation, key parameters such as the load of the injection head, the running speed and the depth of the continuous pipe must be monitored in the operation process, wherein the load parameters are particularly important, and the load of the injection head represents the magnitude of the resultant force applied to the underground pipe body. The magnitude and dynamic trend of the load indication is decisive for the determination of the downhole operating conditions, e.g. when the rate of change of the load decreases, the coiled tubing may be run down to the horizontal section of the well, and when the load value decreases rapidly, it may mean that the coiled tubing is blocked. Therefore, whether the loading parameters of the injection head are accurate directly influences the success or failure of the operation. The current commonly used injection head load parameter calibration device is mainly used for indoor tensile load experiments, facilitates the injection head to leave factory for detection, generally adopts signal cable connection, has the defects of heavy volume, complex operation and the like, and can not meet the requirement of operation field load calibration.
The working environment of an injection head system in coiled tubing operation equipment is complex and changeable, the dismounting procedure is complex, the working period is long, the condition that a load sensor is damaged occurs occasionally, and when a load parameter cannot be accurately acquired, an operator can easily misjudge the underground condition of the coiled tubing. For example: when the continuous pipe is blocked and is in danger in a shaft, because the dynamic change of the load cannot be timely and accurately acquired, an operator cannot timely brake the injection head, and further production accidents such as breakage of the continuous pipe and the like occur, the load needs to be checked and calibrated before the operation of the injection head. At present, the self-weight comparison method of the injection head box body is mostly adopted for field load calibration, namely before each operation, a data acquisition system matched with an operation machine is utilized to obtain the load value of the injection head box body pressed on a load sensor and not ballasted, the load difference obtained twice is the self-weight of the injection head box body, the self-weight index of the box body is compared with the weight of an experience box body, whether the injection head load works normally can be evaluated, the method needs to disassemble and assemble a load mounting nut, the operation process is complex, the weight of the box body is generally factory experience data, the accuracy is not high, the method is limited, and the pulling load capacity of the injection head cannot be detected.
Aiming at the problem that the underground condition of the coiled tubing is difficult to accurately judge in the related technology, an effective solution is not provided at present.
Disclosure of Invention
The main objective of this application provides a wireless type filling head load calibrator to it is difficult to the problem of accurate judgement coiled tubing downhole situation in the solution correlation technique.
To achieve the above object, according to one aspect of the present application, there is provided a wireless injector head load calibrator including: the device comprises a pressure plate, a tension sensor, a wireless transmission transmitting device, a wireless receiving terminal and an HMI digital display, wherein the tension sensor converts tension borne by the pressure plate into an electric signal, the wireless transmission transmitting device transmits the electric signal to the wireless receiving terminal, the wireless receiving terminal transmits the electric signal to the HMI digital display for storage and display, and the display number displayed by the HMI digital display is compared with the display number of the load of a data acquisition system so as to calibrate load parameters.
Furthermore, the pressure plate is a round thick iron plate at the bottom of the blowout prevention box, an annular downward bulge is arranged at the bottom of the pressure plate, and the bulge is tightly connected with the upper surface of the tensile sensor.
Furthermore, the tension sensor is in a spoke type structure form, is arranged at the bottom of the pressure plate and is connected by screws uniformly distributed in the circumferential direction.
Further, when the coiled tubing is subjected to tensile loading, the supporting structure inside the tensile sensor is subjected to linear deformation, stress is converted into the electric signal by using the piezoresistive effect of the strain gauge and a half-bridge circuit, and the magnitude of the tensile loading stress is detected according to the electric signal.
Further, wireless injector head load calibrator includes: the component cavity is arranged at the bottom of the tensile sensor and is connected with screws uniformly distributed in the circumferential direction, the electric power storage power supply, the tensile sensor transmitter and the wireless transmission transmitting device are arranged in the component cavity, and the wireless antenna socket and the switch button are arranged on the shell.
Further, the tensile sensor transmitter employs a 24-bit high resolution A/D converter.
Furthermore, the wireless transmission sending device adopts a low power consumption local area network LoRa technology, and the range of the using frequency is 410MHz-441 MHz.
Further, the transmission mode of the wireless transmission sending device is transparent transmission, and the electric signal is sent to the wireless receiving terminal according to a modbus protocol.
Further, the wireless receiving terminal is used for receiving the electric signals from the wireless transmission sending device, analyzing the electric signals into data according to a modbus protocol, and transmitting the data to the HMI digital display through serial port communication.
Furthermore, the HMI digital display device analyzes the received data, and performs real-time display of the load, record of historical data and discrimination of the maximum load in the calibration process.
Through the application provides a wireless type injection head load calibrator, include: the device comprises a pressure plate, a tension sensor, a wireless transmission transmitting device, a wireless receiving terminal and an HMI (human machine interface) digital display instrument, wherein the tension sensor converts tension borne by the pressure plate into an electric signal, the wireless transmission transmitting device transmits the electric signal to the wireless receiving terminal, the wireless receiving terminal transmits the electric signal to the HMI digital display instrument for storage and display, and compares the displayed number of the HMI digital display instrument with the load number of a data acquisition system so as to realize the calibration of load parameters, solve the problem that the underground condition of the coiled tubing is difficult to accurately judge in the related technology, and accurately judge the underground condition of the coiled tubing.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application. In the drawings:
FIG. 1 is a schematic diagram of a wireless injector head load calibrator provided in accordance with an embodiment of the present application;
FIG. 2 is a schematic diagram of an alternative wireless injector head load calibrator provided in accordance with an embodiment of the present application;
fig. 3 is a flow chart of a load pull test of an injector head provided according to an embodiment of the present application.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make the technical solutions of the present application better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
According to an embodiment of the application, a wireless injector head load calibrator is provided.
Figure 1 is a schematic diagram of a wireless injector head load calibrator according to an embodiment of the present application. As shown in fig. 1, the wireless injector head load calibrator comprises:
pressure disk (3), hold and draw sensor (4), wireless transmission emitter (5), wireless receiving terminal, HMI digital display appearance, wherein, pull force conversion that holds pressure disk (3) and bear through holding and draw sensor (4) becomes the signal of telecommunication, send signal of telecommunication wireless transmission to wireless receiving terminal through wireless transmission emitter (5), wireless receiving terminal transmits to HMI digital display appearance and stores and shows, the registration that shows HMI digital display appearance compares with the registration of data acquisition system's load, in order to realize the calibration of load parameter.
Through the application provides a wireless type injection head load calibrator, include: pressure disk (3), hold and draw sensor (4), wireless transmission emitter (5), wireless receiving terminal, HMI digital display appearance, wherein, pull force conversion that holds pressure disk (3) and bear through holding and draw sensor (4) becomes the signal of telecommunication, send signal of telecommunication wireless transmission to wireless receiving terminal through wireless transmission emitter (5), wireless receiving terminal transmits to HMI digital display appearance and stores and shows, the registration that shows HMI digital display appearance compares with the registration of data acquisition system's load, in order to realize the calibration of load parameter, the problem of being difficult to accurate judgement coiled tubing downhole situation among the correlation technique has been solved, thereby accurate judgement coiled tubing downhole situation.
Optionally, in the wireless injection head load calibrator provided in the embodiment of the present application, the pressure plate (3) is a circular thick iron plate at the bottom of the lubricator (2), and the bottom of the pressure plate (3) has an annular downward protrusion, and the protrusion is tightly connected with the upper surface of the tensile sensor (4).
The structural design can avoid the central offset of the bearing and pulling sensor caused by stress, and the pressure plate mainly plays a role in bearing the reverse acting force generated by the blowout prevention pipe/blowout prevention box in the process of pulling and loading.
Optionally, the tensile sensor (4) in the wireless injection head load calibrator provided in the embodiment of the present application is in a spoke type structure, is disposed at the bottom of the pressure plate (3), and is connected by screws uniformly distributed in the circumferential direction.
Optionally, in the wireless loading head load calibrator provided in this embodiment of the present application, when the coiled tubing (1) is subjected to tensile loading, the internal support structure of the tensile sensor (4) is linearly deformed, a half-bridge circuit is used to convert a stress into an electrical signal by using a piezoresistive effect of the strain gauge, and the magnitude of the tensile loading stress is detected according to the electrical signal.
The tensile sensor (4) is sensitive in response and has good dynamic response characteristic, and the detection range is 0-50 t.
Optionally, in the wireless injector head load calibration apparatus provided in this embodiment of the present application, the wireless injector head load calibration apparatus includes: the component cavity is arranged at the bottom of the tensile sensor (4) and is connected by utilizing circumferentially and uniformly distributed screws, the electric power storage power supply, the tensile sensor transmitter and the wireless transmission and sending device are arranged in the component cavity, and the wireless antenna socket and the switch button are arranged on the shell.
Optionally, in the wireless injector head load calibrator provided in the embodiment of the present application, the tensile sensor transmitter employs a 24-bit high-resolution a/D converter.
The data sampling mode of the A/D converter adopts a high-precision Delta Sigma mode, so that the detection system is ensured to have a high signal-to-noise ratio, and the output of the transmitter adopts a Modbus protocol.
Optionally, in the wireless injector load calibrator provided in the embodiment of the present application, the wireless transmission transmitting device uses a low power consumption local area network LoRa technology, and a range of the use frequency is 410MHz-441 MHz.
The transmission in the scheme is stable and reliable, the precision is high, the interference of obstacles can be effectively overcome, and the maximum effective transmission distance is 8000 m.
Optionally, in the wireless injector head load calibration instrument provided in this embodiment of the application, the transmission mode of the wireless transmission sending device (5) is transparent transmission, and the electrical signal is sent to the wireless receiving terminal according to a Modbus protocol.
Optionally, in the wireless injection head load calibration instrument provided in the embodiment of the present application, the wireless receiving terminal is configured to receive an electrical signal from the wireless transmission and transmission device, analyze the electrical signal into data according to a Modbus protocol, and transmit the pull-load data to the HMI digital display instrument through serial port communication.
Optionally, in the wireless injector load calibrator provided in the embodiment of the present application, the HMI digital display analyzes the received data, and performs real-time display of a load, recording of historical data, and discrimination of a maximum load in a calibration process.
Optionally, as shown in fig. 2, the wireless injector head load calibration instrument of the present invention is composed of a pressure plate (3), a tensile sensor (4), a wireless transmission transmitting device (5), a wireless receiving terminal (6), an HMI digital display instrument and supporting software (7), wherein the length, width, height, weight and weight are less than 25CM, 20CM and 30Kg, so as to facilitate installation by field personnel.
The invention has simple installation steps: the pressure plate (3), the tensile sensor (4) and the component cavity (5-3) are assembled together and placed below the injection head, the coiled tubing is placed to a proper position, the coiled tubing and the load calibrator are connected in a connector connection mode, and 2 people can complete the installation process.
The invention can realize the load calibration of the injection head; when the coiled tubing is lifted up to enable the calibrator pressure plate (3) to be just contacted with the bottom of the blowout prevention pipe (2), the instrument power supply is started, the HMI digital display instrument loads a load calibration zero point, and the data acquisition load numerical value of the operation machine is reset; continuously pulling up the continuous pipe to enable the tensile sensor (4) to generate mechanical deformation, loading the tensile reaction force on the pressure plate (3), converting the tensile force borne by the tensile sensor (4) into an electric signal by the tensile sensor transmitter (5-2), transmitting the electric signal to the wireless receiving terminal (6) by the wireless transmitting device (5), receiving data by the wireless receiving terminal (6), analyzing according to a Modbus protocol, transmitting the tensile data to the HMI digital display instrument (7) for displaying and storing through serial port communication, comparing whether the load value of the data acquisition system of the operating machine is consistent with the tensile value of the calibrator, and verifying whether the load of the injection head is abnormal;
the invention can realize the evaluation of the operation limit capacity of the injection head: the same steps of the tensile test are repeated, the continuous pipe is pulled up to enable the load to be gradually increased, the HMI digital display instrument (7) records a load change curve, when the tensile force is increased until the clamping speed of the injection head and the pipe body slide relatively, the HMI digital display instrument (7) records the maximum tensile load capacity of the injection head, and the maximum working tensile force of the injection head can be evaluated according to the maximum tensile load capacity of the injection head.
Alternatively, as shown in fig. 3, the injector head load pull test is completed as shown by the flow chart of fig. 3. Step L1: the load calibrator for the wireless injection head mainly comprises a pressure plate (3), a tensile sensor (4), a wireless transmission transmitting device (5), a wireless receiving terminal (6), an HMI digital display instrument and supporting software (7). In the process of a tensile load test, a pressure plate (3), a tensile sensor (4) and a component cavity (5-3) are assembled together, an injection head load calibrator is placed below an injection head, and a coiled tubing is lowered to a proper position;
step L2: connecting the continuous pipe and the load calibrator in a connector mode;
step L3: the continuous pipe is lifted up to enable the instrument pressure plate to be in contact with the blowout prevention pipe, but the pressure plate (3) is not stressed;
step L4: starting an instrument power supply, carrying a load calibration zero point by the HMI digital display instrument, and resetting a data acquisition load numerical value of the operating machine;
step L5: the clamping pressure and the tensioning pressure of the operation machine are both regulated to be 5Mpa, and the continuous pipe is pulled up to enable the load reading to be 20T;
step L6: in the process of pulling up the coiled tubing, the tensile force of the coiled tubing makes the tensile sensor (4) generate mechanical deformation, the reaction force of the pulling load is loaded on the pressure plate (3), the tensile sensor transmitter (5-2) converts the tensile force borne by the tensile sensor (4) into an electric signal, the data signal follows a Modbus protocol, the wireless transmitting device (5) transmits the electric signal to the wireless receiving terminal (6), the wireless receiving terminal (6) receives the wirelessly transmitted data, analyzes the data according to the Modbus protocol, and transmits the pulling load data to the HMI digital display (7) for display and storage through serial port communication;
step L7: and comparing the load value of the data acquisition system of the operation equipment with the load value of the calibrator, if the load value of the calibrator is 20T, indicating that the load monitoring function of the injection head is normal, and if the load is not equal to 20T, indicating that the load monitoring function of the injection head is abnormal, analyzing and troubleshooting are needed, and then operating.
And when the step L5 is repeated, the clamping pressure and the tensioning pressure of the operating machine are both set to be 5Mpa, the continuous pipe is pulled up to enable the load to be gradually increased until the injection head clamping block and the pipe body slide relatively, and the load recorded by the HMI digital display instrument (7) is the maximum pulling capacity of the injection head when the clamping pressure and the tensioning pressure are both 5 Mpa.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and so forth) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart(s) and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart(s) and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart(s) and/or block diagram(s).
In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). The memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. A wireless injector head load calibrator, comprising:
pressure disk (3), hold and draw sensor (4), wireless transmission emitter (5), wireless receiving terminal, HMI digital display appearance, wherein, through hold and draw sensor (4) will pressure conversion that pressure disk (3) bore becomes the signal of telecommunication, through wireless transmission emitter (5) will signal of telecommunication wireless transmission send to wireless receiving terminal, wireless receiving terminal transmits extremely HMI digital display appearance is saved and is shown, will the registration that HMI digital display appearance shows compares with the registration of data acquisition system's load to realize the calibration of load parameter.
2. A wireless injector head load calibrator according to claim 1, wherein the pressure plate (3) is a round thick iron plate at the bottom of the lubricator (2), and the bottom of the pressure plate (3) is provided with a downward protrusion in a ring shape, and the protrusion is tightly connected with the upper surface of the tensile sensor (4).
3. A cordless injector head load calibrator according to claim 1, wherein the tensile sensor (4) is in the form of a spoke-type mechanism, arranged at the bottom of the platen (3), connected by circumferentially evenly distributed screws.
4. The load calibrator for wireless injection head according to claim 3, wherein when the coiled tubing (1) is pulled, the internal support structure of the tensile sensor (4) is linearly deformed, the strain gauge is used to convert the stress into the electrical signal by using the piezoresistive effect of the strain gauge and using a half-bridge circuit, and the magnitude of the pulling stress is detected according to the electrical signal.
5. The wireless injector head load calibrator of claim 1, wherein the wireless injector head load calibrator further comprises: the component cavity is arranged at the bottom of the tensile sensor (4) and is connected through screws uniformly distributed in the circumferential direction, the component cavity is internally provided with an electricity storage power supply, a tensile sensor transmitter and a wireless transmission and sending device, and the shell is provided with a wireless antenna socket and a switch button.
6. A wireless injector head load calibrator according to claim 5, wherein the tensile sensor (4) transducer employs a 24-bit high resolution A/D converter.
7. A wireless injector head load calibrator according to claim 5, wherein the wireless transmission and transmission device (5) uses a low power consumption local area network LoRa technology, and the frequency range of use is 410MHz-441 MHz.
8. A wireless injector head load calibrator according to claim 5, wherein the transmission mode of the wireless transmission transmitting means (5) is transparent transmission, and the electrical signal is transmitted to the wireless receiving terminal according to a modbus protocol.
9. The wireless injection head load calibrator according to claim 8, wherein the wireless receiving terminal is configured to receive the electrical signal from the wireless transmission and transmission device (5), analyze the electrical signal into data according to a modbus protocol, and transmit the data to the HMI digital display through serial port communication.
10. The wireless injector head load calibrator according to claim 9, wherein the HMI digital display parses the received data, performs real-time load display, historical data recording, and maximum load discrimination during calibration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110150209.6A CN114858318B (en) | 2021-02-03 | 2021-02-03 | Wireless injection head load calibrator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110150209.6A CN114858318B (en) | 2021-02-03 | 2021-02-03 | Wireless injection head load calibrator |
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| CN114858318A true CN114858318A (en) | 2022-08-05 |
| CN114858318B CN114858318B (en) | 2024-06-25 |
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