CN112901149A - Wireless indicator diagram collector with broken strand monitoring function of hair pigtail - Google Patents
Wireless indicator diagram collector with broken strand monitoring function of hair pigtail Download PDFInfo
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- CN112901149A CN112901149A CN202110303723.9A CN202110303723A CN112901149A CN 112901149 A CN112901149 A CN 112901149A CN 202110303723 A CN202110303723 A CN 202110303723A CN 112901149 A CN112901149 A CN 112901149A
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Abstract
The invention discloses a wireless diagram collector with a function of monitoring broken strand of a hair braid, which comprises: a load sensor and a monitoring host; the monitoring host comprises a main control chip, and an attitude sensing module, a ZIGBEE module, an extended external storage chip, a load signal conditioning circuit, a battery and a power supply conversion module which are connected with the main control chip; the load sensor is connected with the load signal conditioning circuit; the monitoring host is integrally arranged in the weather-proof box body and is connected with the load sensor into a whole. This wireless indicator diagram collector has realized load, stroke, the disconnected strand monitoring data of hair pigtail gathers in real time and uploads oil recovery management district server through on-the-spot ZIGBEE network, after taking place the disconnected strand of hair pigtail, upload disconnected strand early warning information to confirm the back by oil recovery management district monitoring center, give the instruction of stopping taking out through the ZIGBEE network, in time cut off this accident hidden danger beam-pumping unit working power supply, make the beam-pumping unit stop taking out oil, remind the personnel on duty in time to deal with and maintain, avoid taking place the accident.
Description
Technical Field
The invention relates to the technical field of oil exploitation devices and safety protection, in particular to a wireless indicator diagram collector with a hair braid broken strand monitoring function.
Background
In the later stage of oil field development, the exploitation mode enters a mechanical oil extraction stage, so that the beam pumping unit is most widely applied to various oil fields, along with the improvement of the efficiency of the pumping unit and the requirement of real-time monitoring of the oil pumping working condition and the daily improvement of a ZIGBEE network and an SCADA system of the oil field, the wireless indicator diagram collector gradually replaces an indicator diagram collector formed by an old load sensor and a stay wire displacement sensor in recent years, and can collect an indicator diagram in real time and upload the indicator diagram according to instructions.
The hair braid is used as a flexible accessory for converting the rotary motion of the horsehead into the linear motion power of the polished pumping rod, and plays an important role in the operation process of equipment. The hair braid drives the whole sucker rod column and the upper liquid column of the oil well pump to do up-and-down reciprocating motion for a long time, the load is heavy and is changed alternately, the hair braid and the horsehead have actions of friction, bending and the like, and the hair braid is corroded by rain, snow, wind and frost for a long time, so that the hair braid is easy to fatigue, wear and rust, and the hair braid is pricked or even broken. The strand breaking of hair pigtail can lead to the polished rod eye slope, if discover untimely, let the beam-pumping unit continue to operate, can cause the polished rod to stretch out and bend or even fracture, increase the equipment maintenance expense, if the polished rod fracture, during the lower extreme can fall into the oil well, the well head sealed inefficacy, then crude oil can the back flush polluted environment, and the maintenance still need drag for the polished rod, greatly increased maintenance work volume and the work degree of difficulty.
Therefore, a device capable of monitoring strand breakage of a hair braid in real time and sending an alarm to a remote monitoring center after strand breakage is needed so as to stop pumping and maintaining in time.
Disclosure of Invention
The invention mainly aims to provide a wireless indicator diagram collector with a hair pigtail broken strand monitoring function for solving the technical problems, wherein the broken strand monitoring function is added into the wireless indicator diagram collector, so that the real-time execution of the broken strand monitoring and indicator diagram collection of the hair pigtails is realized, the broken strand early warning information is timely uploaded through a field ZIGBEE network after the broken strand of the hair pigtails is judged, and after the broken strand is confirmed by a monitoring center of an oil extraction management area, a pumping stop instruction is issued through the ZIGBEE network, the working power supply of an accident hidden danger pumping unit is timely and automatically cut off, so that the pumping unit stops pumping and the prompt of broken strand stopping is continuously displayed on a remote monitoring screen before hidden dangers are eliminated, and an operator on duty is reminded to timely deal with and maintain.
In order to achieve the purpose, the invention adopts the technical scheme that:
the embodiment of the invention provides a wireless diagram collector with a function of monitoring strand breakage of a hair braid, which comprises: a load sensor and a monitoring host;
the monitoring host comprises a main control chip, an attitude sensing module, a ZIGBEE module, an extended external storage chip, a load signal conditioning circuit, a battery and a power supply conversion module, wherein the attitude sensing module, the ZIGBEE module, the extended external storage chip, the load signal conditioning circuit and the battery are connected with the main control chip;
the load sensor is connected with the load signal conditioning circuit;
the monitoring host is integrally arranged in the weather-proof box body and is connected with the load sensor into a whole.
Further, the main control chip adopts
-M4 MCU + FPU series.
Further, the extended external memory chip comprises 2KB of I2C connects RAM and 4MB SPI flash memory.
Further, the attitude sensing module is used for outputting 3 axial accelerations and 3 shaft rotation angles;
after the attitude sensing module is installed and fixed on the rope hanger, any 2 shafts are in a horizontal state, and the 1 shaft is parallel to the plane where the hair braid is located.
Furthermore, the load signal conditioning circuit inputs a load sensor signal through a connector S1, amplifies and conditions the load sensor signal, and inputs the load sensor signal into the main control chip for A/D conversion to obtain digital load data which is convenient to store;
the amplifying chip of the load signal conditioning circuit is AD 620.
Further, the battery is a 7.2V high-capacity lithium battery;
the power supply conversion module adopts a low dropout regulator and a low power consumption chip which can be managed by program control and low power consumption.
Compared with the prior art, the invention has the following beneficial effects:
the wireless indicator diagram collector with the function of monitoring strand breakage of the hair braid, provided by the invention, is an extension of the function of the existing wireless indicator diagram collector, and the monitoring and uploading of the horizontal posture of the wireless indicator diagram collector are increased through the posture sensing module, so that the strand breakage of the hair braid is judged by the main control chip and is alarmed and prompted, a monitoring person can conveniently send a command to cut off the working power supply of the pumping unit with accident potential in time, the pumping unit stops pumping oil, the further development of production accidents is effectively restrained, and the loss expansion is avoided.
Drawings
Fig. 1 is a schematic structural diagram of a wireless diagram collector with a function of monitoring broken strands of a hair braid provided in an embodiment of the present invention.
Fig. 2 is a block diagram of a wireless diagram collector with a function of monitoring strand breakage of a hair braid according to an embodiment of the present invention.
Fig. 3 is a schematic circuit diagram of the monitoring host according to embodiment 1.
Fig. 4 is a schematic diagram of a power circuit of the wireless diagram collector with a function of monitoring strand breakage of a hair braid according to the embodiment of the present invention.
Fig. 5 is a schematic circuit diagram of the monitoring host according to embodiment 2.
Wherein, 1, a load sensor; 2. and monitoring the host.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The embodiment of the invention discloses a wireless diagram collector with a function of monitoring strand breakage of a hair braid, which is shown in figure 1 and is formed by combining a load sensor 1 and a monitoring host machine 2. The load sensor 1 is an electromechanical integrated sensor, and the structure of the load sensor is suitable for mounting and fixing the whole wireless indicator diagram collector on a polished rod eye of the pumping unit, bearing polished rod load and outputting polished rod load signals to the monitoring host 2. When the load sensor 1 is installed and fixed on site, if the upper surface of the rope suspension device deviates from the horizontal plane, a way of adding a steel gasket at the bottom of the lower side of the load sensor is adopted, so that the wireless indicator diagram collector (more precisely, a gyroscope chip inside the monitoring host) is basically in a horizontal state, for example: and enabling the monitored inclination angle of the wireless indicator diagram collector and the horizontal plane to be less than +/-1 degree.
Referring to fig. 1 and 2, the monitoring host 2 is integrally arranged in a weather-resistant plastic box connected with the load sensor 1, and the circuit composition of the monitoring host comprises a main control chip, and an attitude sensing module, a ZIGBEE module, an extended external storage chip, a load signal conditioning circuit, a battery and a power conversion module which are in energy-saving control by the main control chip and are in signal connection with the main control chip.
The monitoring host 2 has the functions of acquiring the acceleration and the inclination angle of the rope hanger, converting the A/D of a load signal, calculating displacement, early warning of strand breakage, storing data, performing networking communication and the like.
Further, referring to fig. 3, the MCU used in the main control chip is
the-M4 MCU + FPU family, preferably but not limited to, high performance, low power STM32L476 VCT. The plurality of functional interfaces of the chip can be used for carrying out data communication with the plurality of external modules, and load analog signals are directly input and subjected to A/D conversion so as to sample the load signals. The strong operational capability of the chip can be utilized to quickly carry out integral operation, thereby being convenient for calculating the displacement of each point.
In fig. 3, the attitude sensing module is a marketed module capable of outputting 3 orthogonal axial acceleration values and 3 orthogonal axis rotation angles, preferably but not limited to a JY60 attitude angle sensor module, the module is provided with a resolving module, and can be directly connected with an MCU for serial communication at a fixed baud rate to output X, Y, Z axis acceleration and X, Y, Z axis angle, and the module can simplify the development process. In this embodiment, the module is designed and installed to be in a horizontal state, and since the sucker rod is in a vertical motion, only the Z-axis acceleration data and the X-axis or Y-axis inclination data need to be utilized. Specifically, when the wireless diagram collector is mounted and fixed on the rope hanger, 2 axes, such as the X axis and the Y axis, of the attitude sensor module are in a horizontal state, and 1 axis, such as the X axis, of the attitude sensor module is parallel to a plane where the hair braid is located. When calculating: the main control chip can obtain the displacement of each sampling point by using the Z-axis acceleration and adopting a double integral algorithm, and the angle can be directly read. The main control chip collects the acceleration in the vertical direction and the horizontal inclination angle of the rope hanger through the attitude sensor module, and judges whether the strand is broken through the obvious change of the inclination angle; the specific determination process is determined by the tilt threshold, which is not limited in the embodiment of the present disclosure.
As shown in FIG. 3, VCC of JY60 attitude angle sensor is connected with VCC, Rx is connected with PB6 pin of main control chip, Tx is connected with PB7 pin of main control chip.
The extended external memory chip comprises 2KB of I2The RAM chip connected to C and the SPI flash memory of 4MB, preferably but not limited to MB85RC16 and W25Q32BV, respectively, and the external memory chip communication interface are connected to the MCU, wherein, as shown in fig. 3 and 5, MB85RC16 is connected to the MCU through 24_ WP, 24_ SCL and 24_ SDA, and pins W25Q32BV, 1-6 are all interfaced with the corresponding network nodes of the MCU. The ZIGBEE module adopts a marketized module, preferably but not limited to F8913D, is used for accessing the wireless indicator diagram collector into an SCADA network system of an oil extraction management area to realize remote communication, and can also realize field communication with a smart phone provided with debugging software through a ZIGBEE to WIFI adapter existing in the market through the ZIGBEE module, so that the field monitoring, debugging and parameter setting are convenient to install. Specifically, pin 15 of the ZIGBEE module is connected to 79_ AUX (PC11) of the main control chip; pin 2 of the ZIGBEE module is connected to AP _ TX15 of the main control chip, pin 3 is connected to AP _ TX16 of the main control chip, and pin 9 is connected to SET _ B _17 of the main control chip.
Referring to fig. 3, the signal conditioning circuit inputs the load sensor signal through the connector S1, amplifies and conditions the load sensor signal, and inputs the load sensor signal to the MCU for a/D conversion to obtain digital load data for storage, and the circuit amplification chip is preferably, but not limited to, the AD 620. The signal conditioning circuit is connected with an AD2 pin 23 of the main control chip.
Referring to FIG. 4, three LDO circuits are shown, U6(TC1017), U7(MCP1702-50) and U8(MCP 1702). This wireless indicator diagram collector adopts 7.2V large capacity lithium cell power supply, adopts programmable control low-power consumption management's low dropout regulator and low-power consumption chip, only needs this module during operation, just opens the regulator stabilizer to reach the power saving purpose, guarantee that a pair battery normal life is more than 6 months.
It should be noted that, according to the user requirement, since the uploading of indicator diagram data is performed after receiving an upload instruction, and the hair braid stretches and contracts with the load periodically changing and is difficult to avoid shaking, in order to ensure the timeliness of the hair braid strand breakage early warning and avoid false early warning, when the mobile phone debugging software is developed, after the mobile phone debugging software is installed, for example, the pumping unit is started to operate for at least 5 cycles, 10 horizontal inclination angles α are extracted in each cycle, the calculation of the α average value and the standard deviation is performed, and the α average value plus or minus 3 times of the standard deviation is performed to obtain the alarm upper and lower thresholds.
The wireless indicator diagram collector can be designed to confirm that the inclination angle is abnormal and wake up the ZIGBEE module in time to upload the inclination angle data and the early warning mark through a period verification when the inclination angle collected by accident is greater than the warning threshold value in the oil pumping process. The remote monitoring sends out early warning, and after the confirmation of monitoring personnel, the existing SCADA system of the oil field remotely sends out a pumping stop instruction of the corresponding oil well pumping unit, so that the pumping unit is powered off and stops pumping.
As another embodiment, the present invention can also directly employ an appropriate motion processing sensor instead of the JY60 attitude sensor module in the foregoing embodiment, preferably but not limited to MPU6050 (6-axis motion processing sensor). The MPU6050 integrates a 3-axis micro-electro-mechanical system (MEMS) gyroscope, a 3-axis MEMS accelerometer, a Digital Motion Processor (DMP), 3 16-bit A/D converters and the like, and can pass through I2And C, bus communication, namely reading 3-axis acceleration data and 3-axis angular velocity data from a register, and obtaining the Z-axis actual acceleration and the X-axis or Y-axis angular velocity value from the output value through software quantization processing. As in the previous embodiment, the displacement of the sampling point can be obtained by using the double integral of the acceleration of the Z axis, and the current inclination angle of the wireless diagram collector (i.e., the boom) can be obtained by using the integral of the angular velocity of the X axis or the Y axis. In the module application, related technicians can check manufacturer instruction manuals to develop software, and details are not repeated herein. The connection circuit of the MPU6050 and STM32L476VCT can be seen in fig. 5. Pin 23 of MPU6050 is connected to pin 70(AD _ SCL) of STM32L476VCT, and pin 24 is connected to STM32L476VPin 69(AD _ SDA) of CT is connected.
The wireless indicator diagram collector with the function of monitoring strand breakage of the hair braids, which is provided by the invention, can be combined with corresponding single-chip microcomputer software (in the prior art), and can realize the following functions through developed mobile phone debugging software and function module extension of remote monitoring software: (wherein, the related software programs can all adopt related software in the prior art)
Firstly, acquiring and drawing the acceleration data of an instantaneous load and an attitude sensing module of a time sequence required by an indicator diagram of the pumping unit at regular time and fixed frequency in the pumping process, obtaining the displacement corresponding to each load by double integration of the acceleration, and storing each load and displacement data pair.
And secondly, when the wireless indicator diagram collector is installed and debugged on site, a smart phone with debugging software can be used for receiving and displaying the current inclination angle through a carried ZIGBEE/WIFI converter, so that the static horizontal inclination angle can be conveniently adjusted and calibrated during on-site installation. After the alarm is adjusted, the pumping unit is started to operate for at least 5 periods, 10 horizontal inclination angles alpha are extracted in each period, alpha average value and standard deviation calculation is carried out, and the alarm upper and lower thresholds are obtained by adding or subtracting 3 times of standard deviation from the alpha average value. In the oil pumping process, when the dip angle collected by accident is greater than the alarm threshold value, after a period of verification, the angle data is transmitted in time and the warning prompt of strand breakage is sent out, and after the confirmation of monitoring personnel, the corresponding oil well oil pumping unit pumping stop instruction is remotely sent out through the existing SCADA system of the oil field, so that the oil pumping unit is powered off and stops pumping.
And thirdly, after receiving an uploading data instruction issued by monitoring software (SCADA system), the wireless indicator diagram collector packs the newly collected load and displacement data of one period and the current inclination angle data and uploads the packed data to a server through a ZIGBEE network.
In order to remotely monitor strand breakage of a hair braid in real time, the SCADA system monitoring software needs to be expanded, an angle display window of each oil pumping unit rope hanger is added on a display interface, and after the strand breakage of the hair braid, the window turns red and a monitor sends out sound early warning. Through monitoring the horizontal inclination angle of the wireless indicator diagram collector, the early warning of strand breakage of the hair braids is realized, and a pumping stop command is sent out after the remote monitoring personnel confirm, so that the functions of the wireless indicator diagram collector are expanded, and the safety of oil extraction operation equipment is enhanced.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a wireless merit picture collector with broken strand monitor function of hair pigtail which characterized in that: the method comprises the following steps: a load sensor (1) and a monitoring host (2);
the monitoring host (2) comprises a main control chip, an attitude sensing module, a ZIGBEE module, an extended external storage chip, a load signal conditioning circuit, a battery and a power supply conversion module, wherein the attitude sensing module, the ZIGBEE module, the extended external storage chip, the load signal conditioning circuit, the battery and the power supply conversion module are connected with the main control chip;
the load sensor is connected with the load signal conditioning circuit;
the monitoring host (2) is integrally arranged in the weather-proof box body and is connected with the load sensor into a whole.
2. The wireless diagram collector of claim 1, characterized in that: the main control chip adopts
-M4 MCU + FPU series.
3. The wireless diagram collector of claim 1, characterized in that: the extended external memory chip comprises 2KB of I2C connects RAM and 4MB SPI flash memory.
4. The wireless diagram collector of claim 1, characterized in that: the attitude sensing module is used for outputting 3 axial accelerations and 3 axial rotation angles;
after the attitude sensing module is installed and fixed on the rope hanger, any 2 shafts are in a horizontal state, and the 1 shaft is parallel to the plane where the hair braid is located.
5. The wireless diagram collector of claim 1, characterized in that: the load signal conditioning circuit inputs a load sensor signal through a connector S1, amplifies and conditions the load sensor signal, inputs the amplified and conditioned load sensor signal into the main control chip for A/D conversion, and obtains digital load data which is convenient to store;
the amplifying chip of the load signal conditioning circuit is AD 620.
6. The wireless diagram collector of claim 1, characterized in that: the battery is a 7.2V high-capacity lithium battery;
the power supply conversion module adopts a low dropout regulator and a low power consumption chip which can be managed by program control and low power consumption.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110303723.9A CN112901149A (en) | 2021-03-22 | 2021-03-22 | Wireless indicator diagram collector with broken strand monitoring function of hair pigtail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110303723.9A CN112901149A (en) | 2021-03-22 | 2021-03-22 | Wireless indicator diagram collector with broken strand monitoring function of hair pigtail |
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| Publication Number | Publication Date |
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| CN112901149A true CN112901149A (en) | 2021-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110303723.9A Withdrawn CN112901149A (en) | 2021-03-22 | 2021-03-22 | Wireless indicator diagram collector with broken strand monitoring function of hair pigtail |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114622867A (en) * | 2022-03-21 | 2022-06-14 | 奥宸科技有限公司 | Multifunctional protector for sucker rod of oil well |
-
2021
- 2021-03-22 CN CN202110303723.9A patent/CN112901149A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114622867A (en) * | 2022-03-21 | 2022-06-14 | 奥宸科技有限公司 | Multifunctional protector for sucker rod of oil well |
| CN114622867B (en) * | 2022-03-21 | 2023-03-21 | 奥宸科技有限公司 | Multifunctional protector for sucker rod of oil well |
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Application publication date: 20210604 |
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