阅读说明：本技术 一种智能涡轮式液体流量测量工具 (Intelligent turbine type liquid flow measuring tool ) 是由 高飞 宋元洪 党冬红 和建勇 田宝振 张伟 陈斌 杨棋翔 程海林 张晔 蒋世伟 于 2019-10-12 设计创作，主要内容包括：一种智能涡轮式液体流量测量工具。其包括流量测量探头、测量系统和数据接收终端；流量测量探头包括外壳本体、左导向轮、涡轮、旋转轴、右导向轮、两个紧固套筒和测量芯片；测量系统包括：单片机、A/D模数转换模块、Flash数据存储模块、无线通信模块、通信模块、测量探头接口、电源接口和锂电池。本发明提供的智能涡轮式液体流量测量工具是通过内部涡轮的转速来实时测量液体流量,能将测量的数据实时地进行传输并存储,并可通过手持终端上的APP查看测量参数与参数曲线,并可根据不同流体性质设定流量标定系数。本工具具有测量精度高、测量功能全、稳定性高等特点。(An intelligent turbine type liquid flow measuring tool. The system comprises a flow measurement probe, a measurement system and a data receiving terminal; the flow measurement probe comprises a shell body, a left guide wheel, a turbine, a rotating shaft, a right guide wheel, two fastening sleeves and a measurement chip; the measurement system includes: the device comprises a singlechip, an A/D (analog/digital) conversion module, a Flash data storage module, a wireless communication module, a measuring probe interface, a power interface and a lithium battery. The intelligent turbine type liquid flow measuring tool provided by the invention measures the liquid flow in real time through the rotating speed of the internal turbine, can transmit and store the measured data in real time, can check the measured parameters and parameter curves through the APP on the handheld terminal, and can set the flow calibration coefficient according to different fluid properties. The tool has the characteristics of high measurement precision, complete measurement function, high stability and the like.)

1. An intelligence turbine formula liquid flow measuring tool which characterized in that: the intelligent turbine type liquid flow measuring tool comprises: a flow measurement probe (10), a measurement system (20 and a data receiving terminal (30;

the flow measurement probe (10) comprises: the device comprises a shell body (11), a left guide wheel (12), a turbine (13), a rotating shaft (14), a right guide wheel (15), two fastening sleeves (16) and a measuring chip (17);

the shell body (11) is in a circular tube shape, internal threads are formed on the inner circumferential surfaces of two ends of the shell body, and a plurality of key grooves are uniformly distributed on the inner circumferential surfaces of two sides along the circumferential direction and are respectively used for installing and positioning the left guide wheel (12) and the right guide wheel (15);

the rotating shaft (14) is integrally formed by a large-diameter section and two small-diameter sections which are respectively connected to the two ends of the large-diameter section, and is arranged in the middle of the inner part of the shell body (11) in a concentric mode with the shell body (11);

the central hole of the turbine (13) is rotatably arranged on the large-diameter section of the rotating shaft (14), so that the turbine (13) can rotate by taking the rotating shaft (14) as a shaft, and a plurality of helical blades are uniformly distributed on the outer part of the turbine;

the left guide wheel (12) is arranged on one side of the turbine (13), a round hole for inserting a small-diameter section on the rotating shaft (14) is formed in the middle of the left guide wheel, a plurality of straight blades are uniformly distributed on the outer portion of the left guide wheel, and the outer end of each straight blade is inserted into a corresponding key groove fixed on the shell body (11); the right guide wheel (15) and the left guide wheel (12) are in a bilaterally symmetrical structure and are arranged on the other side of the turbine (13);

the outer circumferential surface of each fastening sleeve (16) is provided with an external thread, and each fastening sleeve (16) is connected with the internal thread at one outer end of the shell body (11) and is used for respectively pressing and fixing the left guide wheel (12) and the right guide wheel (15);

the measuring chip (17) is a rotating speed measuring sensor, is arranged in the shell body (11) and is close to the turbine (13), and the measuring output end of the measuring chip is electrically connected with a measuring system (20) arranged outside the shell body (11);

the measurement system (20) comprises: the device comprises a singlechip (21), an A/D (analog/digital) conversion module (22), a Flash data storage module (23), a wireless communication module (24), a communication module (25), a measuring probe interface (26), a power interface (27) and a lithium battery;

the single chip microcomputer (21) is respectively connected with the A/D analog-to-digital conversion module (22), the Flash data storage module (23), the wireless communication module (24) and the communication module (25), the A/D analog-to-digital conversion module (22) is connected with a measurement chip (17) in the flow measurement probe (10) through a measurement probe interface (26), the communication module (25) is connected with a power interface (27), and the lithium battery is used for supplying power to all power utilization components in the device;

the wireless communication module (24) has wifi communication and Bluetooth communication functions and is used for realizing wireless data connection between the measurement system (20) and the data receiving terminal (30); the communication module (25) is a USB communication module and is used for being connected with an external computer through a USB serial port so as to realize the quick reading of data;

the power interface (27) is a USB data port for charging a lithium battery and for exchanging data with an external computer.

2. An intelligent turbine-type liquid flow measuring tool as set forth in claim 1, wherein: the lithium battery adopts a rechargeable lithium battery.

3. An intelligent turbine-type liquid flow measuring tool as set forth in claim 1, wherein: the data receiving terminal (30) adopts a mobile phone or a tablet personal computer which can operate an android system and has a wireless communication function and a GPS.

Technical Field

The invention belongs to the technical field of petroleum development devices, and particularly relates to an intelligent turbine type liquid flow measuring tool.

Background

In the process of oil exploration and development, the usage amount of liquid is large, such as drilling fluid in the conventional drilling process. The accurate measurement of the flow of the drilling fluid at the inlet and the outlet is one of important means (such as stratum leakage, collapse and the like) for finding abnormal phenomena in the process of petroleum exploration and development, so that the accurate and timely measurement of the flow of the drilling fluid at the inlet and the outlet has important significance for the safe exploitation of oil and gas resources.

At present, in oil engineering, tools for measuring the displacement of liquid mainly comprise: 1) the target body flowmeter is mainly used for displacing a target body through the impact of drilling fluid, so that signal change is generated, and the flow change of the drilling fluid is reflected; 2) the ultrasonic sensor is mainly used for measuring the liquid level height of the drilling fluid flowing through a pipeline or a groove body with a fixed size through ultrasonic waves to reflect the flow of the drilling fluid.

According to the use conditions of the two tools at present, the cost of the target body flowmeter is relatively low, but the installation condition is strict, the influence of the field environment on the sensor is large, and the measurement error is large. The ultrasonic sensor has higher measurement precision, is not influenced by temperature and has higher stability, but the measurement result is directly related to the property of the drilling fluid, and the requirement on the measurement condition is more strict.

The turbine flowmeter is commonly used, and under a certain condition, the fluid flow and the rotating speed of the impeller are in a certain proportional relation. However, the turbine flowmeter is often designed only for a single fluid, and a fixed flow coefficient is used, so that when the type of the fluid is changed, a measured flow value deviates from an actual value.

In modern well cementation engineering, the intelligent tool has higher requirements, a large number of parameters in the drilling process are needed, and corresponding judgment is made through analysis of the parameters, so that intelligent well cementation is realized. The flow rate is used as an important parameter in the well cementation process, and the parameter is accurately and timely monitored, so that the method plays an important role in high-quality well cementation.

Therefore, in order to improve the cementing quality and optimize the cementing parameters, a novel liquid fluid measuring tool needs to be developed in the modern cementing process.

Disclosure of Invention

In order to solve the above problems, an object of the present invention is to provide an intelligent turbine type liquid flow measuring tool.

In order to achieve the above object, the present invention provides an intelligent turbine type liquid flow measuring tool comprising: the system comprises a flow measurement probe, a measurement system and a data receiving terminal;

the flow measurement probe comprises: the device comprises a shell body, a left guide wheel, a turbine, a rotating shaft, a right guide wheel, two fastening sleeves and a measuring chip;

the shell body is in a circular tube shape, internal threads are formed on the inner circumferential surfaces of two ends of the shell body, and a plurality of key grooves are uniformly distributed on the inner circumferential surfaces of two sides along the circumferential direction and are respectively used for installing and positioning the left guide wheel and the right guide wheel;

the rotating shaft is integrally formed by a large-diameter section and two small-diameter sections which are respectively connected to two ends of the large-diameter section, and is arranged in the middle of the shell body in a concentric mode with the shell body;

the central hole of the turbine is rotatably arranged on the large-diameter section of the rotating shaft, so that the turbine can rotate by taking the rotating shaft as a shaft, and a plurality of helical blades are uniformly distributed on the outer part of the turbine;

the left guide wheel is arranged on one side of the turbine, a round hole for inserting a small-diameter section on the rotating shaft is formed in the middle of the left guide wheel, a plurality of straight blades are uniformly distributed on the outer portion of the left guide wheel, and the outer end of each straight blade is inserted into a corresponding key groove fixed on the shell body 11; the right guide wheel and the left guide wheel are in a bilaterally symmetrical structure and are arranged on the other side of the turbine;

the outer circumferential surface of each fastening sleeve is provided with an external thread, and each fastening sleeve is connected with the internal thread at one outer end of the shell body and is used for respectively pressing and fixing the left guide wheel and the right guide wheel;

the measuring chip is a rotating speed measuring sensor and is arranged at the position close to the turbine inside the shell body, and the measuring output end of the measuring chip is electrically connected with a measuring system arranged outside the shell body;

the measuring system comprises: the device comprises a singlechip, an A/D (analog/digital) conversion module, a Flash data storage module, a wireless communication module, a measuring probe interface, a power interface and a lithium battery;

the single chip microcomputer is respectively connected with the A/D conversion module, the Flash data storage module, the wireless communication module and the communication module, the A/D conversion module is connected with a measurement chip in the flow measurement probe through a measurement probe interface, the communication module is connected with a power interface, and the lithium battery is used for supplying power to all power utilization parts in the device;

the wireless communication module has wifi communication and Bluetooth communication functions and is used for realizing wireless data connection between the measurement system and the data receiving terminal; the communication module is a USB communication module and is used for being connected with an external computer through a USB serial port so as to realize the quick reading of data;

the power interface is a USB data port used for charging the lithium battery and realizing data exchange with an external computer.

The lithium battery adopts a rechargeable lithium battery.

The data receiving terminal adopts a mobile phone or a tablet personal computer which can operate an android system and has a wireless communication function and a GPS.

The intelligent turbine type liquid flow measuring tool provided by the invention measures the liquid flow in real time through the rotating speed of the internal turbine, can transmit and store the measured data in real time, can check the measured parameters and parameter curves through the APP on the handheld terminal, and can set the flow calibration coefficient according to different fluid properties. The tool has the characteristics of high measurement precision, complete measurement function, high stability and the like.

Drawings

The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention.

Wherein:

fig. 1 is a system schematic diagram of an intelligent turbine type liquid flow measuring tool provided by the invention.

Fig. 2 is a sectional view of the internal structure of a flow measuring probe in the intelligent turbine type liquid flow measuring tool provided by the invention.

Fig. 3 is an exploded view of a flow measurement probe in an intelligent turbine-type liquid flow measurement tool according to the present invention.

Fig. 4 is a block diagram of a measurement system in the intelligent turbine type liquid flow measuring tool provided by the invention.

Detailed Description

The intelligent turbine type liquid flow measuring tool provided by the invention is described in detail below with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, the present invention provides an intelligent turbine type liquid flow measuring tool comprising: a flow measurement probe 10, a measurement system 20 and a data receiving terminal 30;

the flow measurement probe 10 is an acquisition sensor, the measurement system 20 is a measurement control device, and the data receiving terminal 30 is a user operation platform; the measurement system 20 reads the voltage signal output by the flow measurement probe 10, performs frequency analysis and calculation, and uploads the related information to the data receiving terminal 30 for the user to use.

As shown in fig. 2 and 3, the flow measurement probe 10 includes: the device comprises a shell body 11, a left guide wheel 12, a turbine 13, a rotating shaft 14, a right guide wheel 15, two fastening sleeves 16 and a measuring chip 17;

the outer shell body 11 is in a circular tube shape, internal threads are formed on the inner circumferential surfaces at two ends, and a plurality of key grooves are uniformly distributed on the inner circumferential surfaces at two sides along the circumferential direction and are respectively used for installing and positioning the left guide wheel 12 and the right guide wheel 15;

the rotating shaft 14 is integrally formed by a large-diameter section and two small-diameter sections connected to two ends of the large-diameter section, and is arranged in the middle of the inner part of the shell body 11 in a concentric manner with the shell body 11;

the center hole of the turbine 13 is rotatably disposed on the large diameter section of the rotating shaft 14, so that the turbine 13 can rotate around the rotating shaft 14, and a plurality of helical blades are uniformly distributed on the outside;

the left guide wheel 12 is arranged at one side of the turbine 13, a round hole for inserting a small-diameter section on the rotating shaft 14 is formed in the middle of the left guide wheel, a plurality of straight blades are uniformly distributed on the outer part of the left guide wheel, and the outer end of each straight blade is inserted into a corresponding key groove fixed on the shell body 11; the right guide wheel 15 and the left guide wheel 12 are in a bilateral symmetry structure and are arranged on the other side of the turbine 13;

the outer circumferential surface of the fastening sleeve 16 is provided with an external thread, and each fastening sleeve 16 is connected with the internal thread at one outer end of the shell body 11 and is used for respectively pressing and fixing the left guide wheel 12 and the right guide wheel 15;

the measuring chip 17 is a rotating speed measuring sensor, is arranged inside the shell body 11 and close to the turbine 13, and the measuring output end of the measuring chip is electrically connected with a measuring system 20 arranged outside the shell body 11;

the flow measuring probe 10 can convert the rotation speed of the turbine 13 into a voltage signal with a certain frequency through the measuring chip 17, and the frequency value of the voltage signal is proportional to the rotation speed of the turbine 13.

As shown in fig. 4, the measurement system 20 includes: the device comprises a singlechip 21, an A/D (analog/digital) conversion module 22, a Flash data storage module 23, a wireless communication module 24, a communication module 25, a measuring probe interface 26, a power interface 27 and a lithium battery;

the single chip 21 is a core controller of the device, and is connected to the a/D analog-to-digital conversion module 22, the Flash data storage module 23, the wireless communication module 24, and the communication module 25, respectively, the a/D analog-to-digital conversion module 22 is connected to the measurement chip 17 in the flow measurement probe 10 through the measurement probe interface 26, the communication module 25 is connected to the power supply interface 27, and the lithium battery is a rechargeable lithium battery for supplying power to each power consumption component in the device.

The wireless communication module 24 has wifi communication and bluetooth communication functions, and is used for realizing wireless data connection between the measurement system 20 and the data receiving terminal 30; the communication module 25 is a USB communication module, and is used to connect to an external computer through a USB serial port to realize fast data reading.

The single chip microcomputer 21 controls the A/D analog-to-digital conversion module 22, the Flash data storage module 23 and the wireless communication module 24 to complete signal operation, storage and communication tasks according to a set program.

The power interface 27 is a USB data port for charging a lithium battery and for exchanging data with an external computer.

The data receiving terminal 30 is a mobile phone or a tablet computer capable of operating an android system and having a wireless communication function and a GPS.

The working principle of the intelligent turbine type liquid flow measuring tool provided by the invention is explained as follows:

before use, two ends of the upper shell body 11 of the intelligent turbine type liquid flow measuring tool are connected to a pipeline. During normal operation, drilling fluid passes through the mud pump and is output into the pipeline and passes through the interior of the housing body 11 on the flow measurement probe 10. At this time, the drilling fluid firstly enters the straight blades of the left guide wheel 12 or the right guide wheel 15 on the inlet side, the straight blades can stabilize the fluid flow and then flow to the turbine 13, in the process, the blades of the turbine 13 are in a spiral shape, so that the flow direction of the fluid is changed, the turbine 13 is driven to rotate in a certain direction, a part of the kinetic energy of the fluid is converted into the kinetic energy of the turbine 13, and the turbine 13 continuously rotates.

From fluid mechanics, it is known that the rotational speed of the turbine 13 is directly related to the flow rate of the drilling fluid. The larger the flow rate of the drilling fluid, the higher the rotation speed of the turbine 13, and in a certain proportion relation. Thus, the flow rate of the fluid may be reflected according to the measured rotational speed of the turbine 13.

In the above process, the measuring chip 17 will detect the rotation speed signal at the turbine 13 in real time, and then convert the rotation speed signal into a voltage signal with a certain frequency and transmit the voltage signal to the measuring system 20 in real time in a wireless manner.

The workflow of the measurement system 20 is:

(1) the A/D analog-to-digital conversion module 22 converts the analog signal output by the measurement chip 17 into a digital signal which can be processed by the singlechip 21;

(2) the single chip microcomputer 21 reads the data of the a/D analog-to-digital conversion module 22, filters the data, calculates the frequency, sends the calculated frequency to the wireless communication module 24 according to a certain time, and then transmits the frequency to the data receiving terminal 30 through the wireless communication module 24; and writes the data into the Flash data storage module 23.

After the data receiving terminal 30 receives the frequency data transmitted by the measuring system 20, the instantaneous flow is calculated according to the following formula:

Q₁＝Af

wherein Q is₁Is the instantaneous flow through the flow measurement probe 10; a is a flow calibration coefficient of the corresponding fluid passing through the flow measurement probe 10, and the flow calibration coefficient can be obtained through a calibration test; f is the frequency value received by the data receiving terminal 30.

After the data receiving terminal 30 receives the frequency data transmitted by the measuring system 20, the cumulative flow is calculated according to the following formula:

wherein Q is the accumulated flow through the flow measurement probe 10 from the moment the flow measurement probe 10 is turned on this time; a is a flow calibration coefficient of the corresponding fluid passing through the flow measurement probe 10, and the flow calibration coefficient can be obtained through a calibration test; f. of_tThe frequency value received by the data receiving terminal 30 is the current time t.

For different fluids commonly used in well cementing operation, corresponding flow calibration coefficients can be obtained through an indoor calibration test, and the flow calibration coefficients are stored in the data receiving terminal 30. When the measuring tool is used, an operator can select corresponding flow calibration coefficients according to different measured fluids.

The data receiving terminal 30 stores the calculated instantaneous traffic, accumulated traffic, time, and GPS coordinate values in a file form in a memory of the data receiving terminal 30. Meanwhile, the rotating speed parameters can be converted into corresponding parameter curves by using corresponding programs.

The data receiving terminal 30 can directly read the data stored in the Flash data storage module 23 in the measurement system 20, and can also erase the data in the Flash data storage module 23 in the measurement system 20.

The staff can check parameters and parameter curves such as instantaneous flow, accumulated flow, time, GPS coordinate values and the like at any time through the APP on the data receiving terminal 30, and position the tool through the GPS coordinate values.

The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes and modifications that can be made by one skilled in the art without departing from the spirit and principles of the invention should fall within the protection scope of the invention.