CN113899412A - A turbine flowmeter - Google Patents

A turbine flowmeter Download PDF

Info

Publication number
CN113899412A
CN113899412A CN202010577027.2A CN202010577027A CN113899412A CN 113899412 A CN113899412 A CN 113899412A CN 202010577027 A CN202010577027 A CN 202010577027A CN 113899412 A CN113899412 A CN 113899412A
Authority
CN
China
Prior art keywords
turbine
measurement unit
inertial measurement
interface circuit
threads
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010577027.2A
Other languages
Chinese (zh)
Inventor
孙桂涛
时献江
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harbin University of Science and Technology
Original Assignee
Harbin University of Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Harbin University of Science and Technology filed Critical Harbin University of Science and Technology
Priority to CN202010577027.2A priority Critical patent/CN113899412A/en
Publication of CN113899412A publication Critical patent/CN113899412A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00—Thermometers specially adapted for specific purposes
    • G01K13/02—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Measuring Volume Flow (AREA)

Abstract

The invention provides a turbine flowmeter, belongs to the field of hydraulic pressure, and mainly solves the problems of large volume and single function of the conventional turbine flowmeter. The invention integrates the flow measurement, temperature detection, pressure detection and fault diagnosis functions into a whole, utilizes the inertia measurement unit to measure the rotating speed of the turbine and collect vibration information, and utilizes the microprocessor to analyze signals. The invention has the advantages of compact structure, small volume, complete functions, high signal quality and abundant transmission interfaces, and improves the overall performance of the flowmeter.

Description

Turbine flowmeter
The technical field is as follows:
the invention relates to a turbine flowmeter, and belongs to the field of hydraulic pressure.
Background art:
turbine flowmeter mainly used measures liquid flow, and current turbine flowmeter passes through magnetoelectric sensor and measures the turbine rotational speed, acquires flow information on this basis, and the function is comparatively single. Because magnetoelectric sensor is perpendicular with the turbine axis, cause current turbine flowmeter overall size great, can't be in the narrow and small occasion application in space.
The invention content is as follows:
the invention provides a turbine flowmeter, aiming at solving the problems of larger size and single function of the existing turbine flowmeter.
The invention discloses a turbine flowmeter which comprises a digital display device (101), an EtherCAT bus interface circuit (102), a CAN bus interface circuit (103), a serial interface circuit (104), a wireless device interface circuit (105), a microcontroller (106), a liquid pressure sensor (107), an analog-to-digital converter (108), a temperature sensor (109), a digital-to-analog converter (110), a V/I conversion circuit (111), a guider inertia measurement unit (112), a turbine inertia measurement unit (113), an acousto-optic alarm device (114), an indicator light set (115), locking nuts (201A), (201B), a front guider (202), a shell (203), bearings (204A), (204B), a guide sleeve (205), a turbine (206), a turbine shaft (207), a conductive slip ring locking nut (208), a conductive slip ring (209), a circuit board (210A), (210B) The device comprises a rotary inertia measurement unit fixing frame (211), sealing rings (212A) and (212B), sealing end covers (213A) and (213B), sealing aerial sockets (214A), (214B) and (214C), a rear guider (215) and an external display device (216).
The Ethernet CAT bus interface circuit (102), the CAN bus interface circuit (103), the serial interface circuit (104) and the wireless device interface circuit (105) are connected with input and output interfaces of a microcontroller (106), the output interface of the microcontroller (106) is respectively connected with an input interface of a digital-to-analog converter (110), an input interface of an audible and visual alarm device (114), an input interface of an indicator light set (115) and an input interface of a digital display device (101), and the output interface of the digital-to-analog converter (110) is connected with an input interface of a V/I conversion circuit (111). The input interface of the microcontroller (106) is respectively connected with the output interface of the turbine inertia measuring unit (113), the output interface of the guider inertia measuring unit (112) and the output interface of the analog-to-digital converter (108), and the input interface of the analog-to-digital converter (108) is respectively connected with the output interface of the liquid pressure sensor (107) and the output interface of the temperature sensor (109).
The locking nut (201A) is connected with the shell (203) through threads, the front guider (202) moves in the axial direction, the outer circle of the front guider (202) is matched with the inner circle of the shell (203), the front guider (202) is connected with the outer circle of the bearing (204A), the inner circle of the bearing (204A) is connected with one end of a turbine shaft (207), the outer circle of the turbine shaft (207) is matched with a hole of a turbine (206), the other end of the turbine shaft (207) is connected with the inner circle of the bearing (204B), the outer circle of the bearing (204B) is connected with the rear guider (215), the outer circle of the rear guider (215) is matched with the inner circle of the shell (203), the rear guider (215) is axially fixed through the locking nut (201B), and the locking nut (201B) is connected with the shell (203) through threads.
The outer circle of the conductive sliding ring (209) is matched with the rear guider (215), and the conductive sliding ring is fixed in the axial direction through a conductive sliding ring locking nut (208). The inner circle of the conductive slip ring (209) is matched with the outer circle of the rotating inertia measurement unit fixing frame (211) and is fixed through screws, and one end of the rotating inertia measurement unit fixing frame (211) is matched with the turbine shaft (207) through a square hole to realize coaxial rotation of the rotating inertia measurement unit fixing frame and the turbine shaft. The other end of the rotating inertia measurement unit fixing frame (211) is connected with a sealing end cover (213A) through threads, and the sealing end cover (213A) and a sealing ring (212A) jointly act to prevent oil from entering the rotating inertia measurement unit fixing frame (211).
The sealed aerial plug (214A) is connected with a sealed end cover (213A) through threads, one end of the sealed aerial plug (214A) is connected with a circuit board (210A), the other end of the sealed aerial plug (214A) is connected with an inner ring lead of the conductive slip ring (209), and the circuit board (210A) is connected with the rotating inertia measuring unit fixing frame (211) through screws.
The liquid pressure sensor (107) and the temperature sensor (109) are connected with the rear guider (215) through threads and are arranged in a cavity of the rear guider (215). The circuit board (210B) is fixed in the cavity of the rear guider (215) through screws.
The sealing end cover (213B) is connected with the rear guider (215) through threads, the sealing end cover (213B) and the sealing ring (212B) jointly act to prevent oil from entering a cavity of the rear guider (215), the sealing aerial plug (214B) is connected with the sealing end cover (213B) through threads, one end of the sealing aerial plug (214B) is connected with the circuit board (210B), and the other end of the sealing aerial plug (214B) is connected with an outer ring lead of the conductive slip ring (209).
The sealed aerial plug (214C) is connected with the shell (203) through threads, and one end of the sealed aerial plug (214C) is connected with an outer ring lead of the conductive slip ring (209).
The external display device (216) is connected with the shell (203) through a screw,
the turbine inertia measurement unit (113) is integrated on a circuit board (210A), and the EtherCAT bus interface circuit (102), the CAN bus interface circuit (103), the serial interface circuit (104), the wireless device interface circuit (105), the microcontroller (106), the analog-to-digital converter (108), the digital-to-analog converter (110), the V/I conversion circuit (111) and the guider inertia measurement unit (112) are integrated on a circuit board (210B).
The digital display device (101), the sound-light alarm device (114) and the indicator light set (115) are integrated on the external display device (216).
The external device (216) may be discarded when no on-site display is required.
The fluid pressure sensor (107) may be discarded when fluid pressure measurement is not required.
The temperature sensor (109) may be discarded when temperature measurement is not required.
The inner and outer rings of the conductive slip ring (209) are free to rotate.
The microcontroller (106) is a floating-point DSP, and the guider inertia measurement unit (112) and the turbine inertia measurement unit (113) can detect the information of three-axis angular velocity and three-axis acceleration under a Cartesian coordinate system.
The indicator light set (115) comprises a normal operation indicator light and a fault indicator light.
The invention has the advantages that: the invention integrates the flow measurement, temperature detection, pressure detection and fault diagnosis functions into a whole, utilizes the inertia measurement unit to measure the rotating speed of the turbine and collect vibration information, has better signal quality and smaller volume, and improves the overall performance of the flowmeter.
The invention integrates various sensors in the flowmeter, has compact structure and small volume, can measure flow, pressure, temperature and vibration information, can realize fault self-diagnosis and alarm when an internal bearing or a supporting piece has a fault, and has more comprehensive functions.
Drawings
FIG. 1 is a block diagram of the electrical structure of the flow meter
FIG. 2 flow meter architecture diagram
FIG. 3 rotating inertia measuring unit fixing frame
Detailed Description
The specific implementation mode is as follows: the turbine flowmeter principle is explained below with reference to fig. 1, 2 and 3. The invention discloses a turbine flowmeter which comprises a digital display device (101), an EtherCAT bus interface circuit (102), a CAN bus interface circuit (103), a serial interface circuit (104), a wireless device interface circuit (105), a microcontroller (106), a liquid pressure sensor (107), an analog-to-digital converter (108), a temperature sensor (109), a digital-to-analog converter (110), a V/I conversion circuit (111), a guider inertia measurement unit (112), a turbine inertia measurement unit (113), an acousto-optic alarm device (114), an indicator light set (115), locking nuts (201A), (201B), a front guider (202), a shell (203), bearings (204A), (204B), a guide sleeve (205), a turbine (206), a turbine shaft (207), a conductive slip ring locking nut (208), a conductive slip ring (209), a circuit board (210A), (210B) The device comprises a rotary inertia measurement unit fixing frame (211), sealing rings (212A) and (212B), sealing end covers (213A) and (213B), sealing aerial sockets (214A), (214B) and (214C), a rear guider (215) and an external display device (216).
The Ethernet CAT bus interface circuit (102), the CAN bus interface circuit (103), the serial interface circuit (104) and the wireless device interface circuit (105) are connected with input and output interfaces of a microcontroller (106), the output interface of the microcontroller (106) is respectively connected with an input interface of a digital-to-analog converter (110), an input interface of an audible and visual alarm device (114), an input interface of an indicator light set (115) and an input interface of a digital display device (101), and the output interface of the digital-to-analog converter (110) is connected with an input interface of a V/I conversion circuit (111). The input interface of the microcontroller (106) is respectively connected with the output interface of the turbine inertia measuring unit (113), the output interface of the guider inertia measuring unit (112) and the output interface of the analog-to-digital converter (108), and the input interface of the analog-to-digital converter (108) is respectively connected with the output interface of the liquid pressure sensor (107) and the output interface of the temperature sensor (109).
The locking nut (201A) is connected with the shell (203) through threads, the front guider (202) moves in the axial direction, the outer circle of the front guider (202) is matched with the inner circle of the shell (203), the front guider (202) is connected with the outer circle of the bearing (204A), the inner circle of the bearing (204A) is connected with one end of a turbine shaft (207), the outer circle of the turbine shaft (207) is matched with a hole of a turbine (206), the other end of the turbine shaft (207) is connected with the inner circle of the bearing (204B), the outer circle of the bearing (204B) is connected with the rear guider (215), the outer circle of the rear guider (215) is matched with the inner circle of the shell (203), the rear guider (215) is axially fixed through the locking nut (201B), and the locking nut (201B) is connected with the shell (203) through threads.
The outer circle of the conductive sliding ring (209) is matched with the rear guider (215), and the conductive sliding ring is fixed in the axial direction through a conductive sliding ring locking nut (208). The inner circle of the conductive slip ring (209) is matched with the outer circle of the rotating inertia measurement unit fixing frame (211) and is fixed through screws, and one end of the rotating inertia measurement unit fixing frame (211) is matched with the turbine shaft (207) through a square hole to realize coaxial rotation of the rotating inertia measurement unit fixing frame and the turbine shaft. The other end of the rotating inertia measurement unit fixing frame (211) is connected with a sealing end cover (213A) through threads, and the sealing end cover (213A) and a sealing ring (212A) jointly act to prevent oil from entering the rotating inertia measurement unit fixing frame (211).
The sealed aerial plug (214A) is connected with a sealed end cover (213A) through threads, one end of the sealed aerial plug (214A) is connected with a circuit board (210A), the other end of the sealed aerial plug (214A) is connected with an inner ring lead of the conductive slip ring (209), and the circuit board (210A) is connected with the rotating inertia measuring unit fixing frame (211) through screws.
The liquid pressure sensor (107) and the temperature sensor (109) are connected with the rear guider (215) through threads and are arranged in a cavity of the rear guider (215). The circuit board (210B) is fixed in the cavity of the rear guider (215) through screws.
The sealing end cover (213B) is connected with the rear guider (215) through threads, the sealing end cover (213B) and the sealing ring (212B) jointly act to prevent oil from entering a cavity of the rear guider (215), the sealing aerial plug (214B) is connected with the sealing end cover (213B) through threads, one end of the sealing aerial plug (214B) is connected with the circuit board (210B), and the other end of the sealing aerial plug (214B) is connected with an outer ring lead of the conductive slip ring (209).
The sealed aerial plug (214C) is connected with the shell (203) through threads, and one end of the sealed aerial plug (214C) is connected with an outer ring lead of the conductive slip ring (209).
The external display device (216) is connected with the shell (203) through a screw,
the turbine inertia measurement unit (113) is integrated on a circuit board (210A), and the EtherCAT bus interface circuit (102), the CAN bus interface circuit (103), the serial interface circuit (104), the wireless device interface circuit (105), the microcontroller (106), the analog-to-digital converter (108), the digital-to-analog converter (110), the V/I conversion circuit (111) and the guider inertia measurement unit (112) are integrated on a circuit board (210B).
The digital display device (101), the sound-light alarm device (114) and the indicator light set (115) are integrated on the external display device (216).
The external device (216) may be discarded when no on-site display is required.
The fluid pressure sensor (107) may be discarded when fluid pressure measurement is not required.
The temperature sensor (109) may be discarded when temperature measurement is not required.
The inner and outer rings of the conductive slip ring (209) are free to rotate.
The microcontroller (106) is a floating-point DSP, and the guider inertia measurement unit (112) and the turbine inertia measurement unit (113) can detect the information of three-axis angular velocity and three-axis acceleration under a Cartesian coordinate system.
The indicator light set (115) comprises a normal operation indicator light and a fault indicator light.
When the flowmeter is free of faults, the indicating lamp set (115) works normally, when liquid flow passes through the flowmeter to enable the turbine (206) to rotate, the turbine (206) drives the turbine shaft (207) and the rotating inertia measuring unit fixing frame (211) to rotate, the turbine inertia measuring unit (113) in the rotating inertia measuring unit fixing frame (211) rotates, the turbine inertia measuring unit (113) outputs angle degree information of the turbine (206) relative to an inertia coordinate system and transmits the information to the microcontroller (106), and the microcontroller (106) compares the information of the turbine inertia measuring unit (113) with the information of the guider inertia measuring unit (112) to obtain rotating speed information of the flowmeter and converts the rotating speed information into flow information. At the moment, according to actual needs, the flow meter CAN output flow information, liquid pressure information acquired by a liquid pressure sensor (107) and temperature information acquired by a temperature sensor (109) through an EtherCAT bus interface circuit (102), a CAN bus interface circuit (103), a serial interface circuit (104) or a wireless device interface circuit (105), and display corresponding information through a digital display device (101).
When the flowmeter works, when the bearings (204A) and (204B) or other faults cause vibration, the guider inertia measuring unit (112) transmits the acquired vibration acceleration information to the microcontroller (106), the microcontroller (106) performs frequency spectrum analysis on the vibration signals and compares the vibration signals with the frequency spectrum of the vibration signals in normal work, if the difference value between the vibration acceleration information and the frequency spectrum is larger than a set threshold value, the microcontroller (106) judges that the flowmeter has faults, the fault information is output through an EtherCAT bus interface circuit (102), a CAN bus interface circuit (103), a serial interface circuit (104) or a wireless device interface circuit (105), corresponding information display is performed through a digital display device (101), and at the moment, a fault indicating lamp set is lighted.
The operation of the invention comprises the following working conditions:
the working condition I is as follows: when the flowmeter is free of faults, the indicating lamp set (115) works normally, when liquid flow passes through the flowmeter to enable the turbine (206) to rotate, the turbine (206) drives the turbine shaft (207) and the rotating inertia measuring unit fixing frame (211) to rotate, the turbine inertia measuring unit (113) in the rotating inertia measuring unit fixing frame (211) rotates, the turbine inertia measuring unit (113) outputs angle degree information of the turbine (206) relative to an inertia coordinate system and transmits the information to the microcontroller (106), and the microcontroller (106) compares the information of the turbine inertia measuring unit (113) with the information of the guider inertia measuring unit (112) to obtain rotating speed information of the flowmeter and converts the rotating speed information into flow information. At the moment, according to actual needs, the flow meter CAN output flow information, liquid pressure information acquired by a liquid pressure sensor (107) and temperature information acquired by a temperature sensor (109) through an EtherCAT bus interface circuit (102), a CAN bus interface circuit (103), a serial interface circuit (104) or a wireless device interface circuit (105), and display corresponding information through a digital display device (101).
Working conditions are as follows: when the flowmeter is in fault, in the working process of the flowmeter, when the vibration is caused by the bearings (204A) and (204B) or other faults, the guider inertia measuring unit (112) transmits the collected vibration acceleration information to the microcontroller (106), the microcontroller (106) performs frequency spectrum analysis on the vibration signal and compares the vibration signal with the frequency spectrum of the vibration signal in normal working, if the difference value of the two is larger than a set threshold value, the microcontroller (106) judges that the flowmeter is in fault, the fault information is output through an EtherCAT bus interface circuit (102), a CAN bus interface circuit (103), a serial interface circuit (104) or a wireless device interface circuit (105), corresponding information is displayed through a digital display device (101), and at the moment, a fault indicating lamp set is lighted.

Claims (5)

1.一种涡轮流量计其特征在于，它包括数显装置（101）、EtherCAT 总线接口电路（102）、CAN总线接口电路（103）、串口接口电路（104）、无线装置接口电路（105）、微控制器（106）、液体压力传感器（107）、模数转换器（108）、温度传感器（109）、数模转换器（110）、V/I转换电路（111）、导向器惯性测量单元（112）、涡轮惯性测量单元（113）、声光报警装置（114）、指示灯组（115）、锁紧螺母（201A）、（201B）、前导向器（202）、壳体（203）、轴承（204A）、（204B）、导套（205）、涡轮（206）、涡轮轴（207）、导电滑环锁紧螺母（208）、导电滑环（209）、电路板（210A）、（210B）、转动惯性测量单元固定架（211）、密封圈（212A）、（212B）、密封端盖（213A）、（213B）、密封航插（214A）、（214B）、（214C）、后导向器（215）和外显装置（216）；1. A turbine flowmeter is characterized in that it comprises a digital display device (101), an EtherCAT bus interface circuit (102), a CAN bus interface circuit (103), a serial port interface circuit (104), a wireless device interface circuit (105) , microcontroller (106), liquid pressure sensor (107), analog-to-digital converter (108), temperature sensor (109), digital-to-analog converter (110), V/I conversion circuit (111), guide inertial measurement unit (112), turbine inertial measurement unit (113), sound and light alarm device (114), indicator light group (115), lock nuts (201A), (201B), front guide (202), housing (203) ), bearing (204A), (204B), guide bush (205), turbine (206), turbine shaft (207), conductive slip ring lock nut (208), conductive slip ring (209), circuit board (210A) , (210B), rotating inertial measurement unit fixing frame (211), sealing ring (212A), (212B), sealing end cap (213A), (213B), sealing aerial plug (214A), (214B), (214C) , a rear guide (215) and an external display device (216); 所述EtherCAT 总线接口电路（102）、CAN总线接口电路（103）、串口接口电路（104）、无线装置接口电路（105）输入输出接口与微控制器（106）输入输出接口连接，所述微控制器（106）输出接口分别与数模转换器（110）输入接口、声光报警装置（114）输入接口、指示灯组（115）输入接口、数显装置（101）输入接口连接，所述数模转换器（110）输出接口与V/I转换电路（111）输入接口连接，所述微控制器（106）输入接口分别与涡轮惯性测量单元（113）输出接口、导向器惯性测量单元（112）输出接口、模数转换器（108）输出接口连接，所述模数转换器（108）输入接口分别与液体压力传感器（107）输出接口、温度传感器（109）输出接口连接；The EtherCAT bus interface circuit (102), the CAN bus interface circuit (103), the serial interface circuit (104), and the wireless device interface circuit (105) input and output interfaces are connected to the microcontroller (106) input and output interfaces, and the micro The output interface of the controller (106) is respectively connected with the input interface of the digital-to-analog converter (110), the input interface of the sound and light alarm device (114), the input interface of the indicator light group (115), and the input interface of the digital display device (101). The output interface of the digital-to-analog converter (110) is connected with the input interface of the V/I conversion circuit (111), and the input interface of the microcontroller (106) is respectively connected with the output interface of the turbine inertial measurement unit (113), the guide inertial measurement unit ( 112) The output interface and the output interface of the analog-to-digital converter (108) are connected, and the input interface of the analog-to-digital converter (108) is respectively connected with the output interface of the liquid pressure sensor (107) and the output interface of the temperature sensor (109); 所述锁紧螺母（201A）通过螺纹与壳体（203）连接，实现前导向器（202）在轴向方向移动，所述前导向器（202）外圆与壳体（203）内圈配合，所述前导向器（202）与轴承（204A）外圈连接，所述轴承（204A）内圈与涡轮轴（207）一端连接，所述涡轮轴（207）外圆与涡轮（206）孔配合，所述涡轮轴（207）另一端与轴承（204B）内圈连接，所述轴承（204B）外圈与后导向器（215）连接，所述后导向器（215）外圆与壳体（203）内圆配合，所述后导向器（215）通过锁紧螺母（201B）实现轴向固定，所述锁紧螺母（201B）通过螺纹与壳体（203）连接；The locking nut (201A) is connected with the housing (203) through threads, so that the front guide (202) moves in the axial direction, and the outer circle of the front guide (202) is matched with the inner ring of the housing (203). , the front guide (202) is connected with the outer ring of the bearing (204A), the inner ring of the bearing (204A) is connected with one end of the turbine shaft (207), and the outer circle of the turbine shaft (207) is connected with the hole of the turbine (206) In cooperation, the other end of the turbine shaft (207) is connected with the inner ring of the bearing (204B), the outer ring of the bearing (204B) is connected with the rear guide (215), and the outer circle of the rear guide (215) is connected with the casing (203) Inner circle fit, the rear guide (215) is axially fixed by a locking nut (201B), and the locking nut (201B) is connected to the housing (203) through threads; 所述导电滑环（209）外圆与后导向器（215）配合，并通过导电滑环锁紧螺母（208）实现其在轴向方向固定，所述导电滑环（209）内圆与转动惯性测量单元固定架（211）外圆配合，并通过螺钉固定，所述转动惯性测量单元固定架（211）一端通过方孔与涡轮轴（207）配合，实现二者同轴转动，所述转动惯性测量单元固定架（211）另一端通过螺纹与密封端盖（213A）连接，所述密封端盖（213A）和密封圈（212A）共同作用防止油液进入转动惯性测量单元固定架（211）内部；The outer circle of the conductive slip ring (209) is matched with the rear guide (215), and is fixed in the axial direction by the conductive slip ring locking nut (208). The inertial measurement unit fixing frame (211) is matched with the outer circle and fixed by screws, and one end of the rotating inertial measurement unit fixing frame (211) is matched with the turbine shaft (207) through a square hole, so as to realize the coaxial rotation of the two. The other end of the inertial measurement unit fixing frame (211) is connected with the sealing end cap (213A) through threads, and the sealing end cap (213A) and the sealing ring (212A) work together to prevent oil from entering the rotating inertial measurement unit fixing frame (211) internal; 所述密封航插（214A）通过螺纹与密封端盖（213A）连接，所述密封航插（214A）一端与电路板（210A）连接，所述密封航插（214A）另一端与导电滑环（209）内圈导线连接，所述电路板（210A）通过螺钉与转动惯性测量单元固定架（211）连接；The sealed air plug (214A) is connected with the sealed end cap (213A) through threads, one end of the sealed air plug (214A) is connected with the circuit board (210A), and the other end of the sealed air plug (214A) is connected with a conductive slip ring (209) The inner ring is connected with wires, and the circuit board (210A) is connected with the rotating inertial measurement unit fixing frame (211) through screws; 所述液体压力传感器（107）和温度传感器（109）通过螺纹与后导向器（215）连接，且置于后导向器（215）腔体内，所述电路板（210B）通过螺钉固定于后导向器（215）腔体内；The liquid pressure sensor (107) and the temperature sensor (109) are connected to the rear guide (215) through threads, and are placed in the cavity of the rear guide (215), and the circuit board (210B) is fixed to the rear guide by screws in the cavity of the device (215); 所述密封端盖（213B）通过螺纹与后导向器（215）连接，所述密封端盖（213B）和密封圈（212B）共同作用防止油液进入后导向器（215）腔体内，所述密封航插（214B）通过螺纹与密封端盖（213B）连接，所述密封航插（214B）一端与电路板（210B）连接，所述密封航插（214B）另一端与导电滑环（209）外圈导线连接；The sealing end cover (213B) is connected with the rear guide (215) through threads, and the sealing end cover (213B) and the sealing ring (212B) work together to prevent oil from entering the cavity of the rear guide (215). The sealed air plug (214B) is connected to the sealed end cap (213B) through threads, one end of the sealed air plug (214B) is connected to the circuit board (210B), and the other end of the sealed air plug (214B) is connected to the conductive slip ring (209 ) Outer ring wire connection; 所述密封航插（214C）通过螺纹与壳体（203）连接，所述密封航插（214C）一端与导电滑环（209）外圈导线连接；The sealed air plug (214C) is connected to the housing (203) through threads, and one end of the sealed air plug (214C) is connected to the outer ring wire of the conductive slip ring (209); 所述外显装置（216）通过螺钉与壳体（203）连接；The external display device (216) is connected to the housing (203) through screws; 所述涡轮惯性测量单元（113）集成在电路板（210A）上，所述EtherCAT 总线接口电路（102）、CAN总线接口电路（103）、串口接口电路（104）、无线装置接口电路（105）、微控制器（106）、模数转换器（108）、数模转换器（110）、V/I转换电路（111）和导向器惯性测量单元（112）集成在电路板（210B）上；The turbine inertial measurement unit (113) is integrated on a circuit board (210A), and the EtherCAT bus interface circuit (102), CAN bus interface circuit (103), serial interface circuit (104), wireless device interface circuit (105) , a microcontroller (106), an analog-to-digital converter (108), a digital-to-analog converter (110), a V/I conversion circuit (111) and a director inertial measurement unit (112) integrated on the circuit board (210B); 所述数显装置（101）、声光报警装置（114）和指示灯组（115）集成在外显装置（216）上；The digital display device (101), the sound and light alarm device (114) and the indicator light group (115) are integrated on the external display device (216); 在无需现场显示时，外显装置（216）可舍弃；When no on-site display is required, the external display device (216) can be discarded; 在无需液体压力测量时，液体压力传感器（107）可舍弃；When no liquid pressure measurement is required, the liquid pressure sensor (107) can be discarded; 在无需温度测量时，温度传感器（109）可舍弃；When no temperature measurement is required, the temperature sensor (109) can be discarded; 所述导电滑环（209）内外圈可以自由转动；The inner and outer rings of the conductive slip ring (209) can rotate freely; 所述微控制器（106）为浮点型DSP，所述导向器惯性测量单元（112）和涡轮惯性测量单元（113）能够检测笛卡尔坐标系下的三轴角速度、三轴加速度信息；The microcontroller (106) is a floating-point DSP, and the guide inertial measurement unit (112) and the turbine inertial measurement unit (113) can detect triaxial angular velocity and triaxial acceleration information in a Cartesian coordinate system; 所述指示灯组（115）包括正常工作指示灯和故障指示灯。The indicator light group (115) includes a normal working indicator light and a fault indicator light. 2.根据权利要求1所述的一种涡轮流量计，其特征在于其利用两个惯性测量单元进行涡轮转速测量。2. A turbine flowmeter according to claim 1, characterized in that it uses two inertial measurement units to measure the turbine speed. 3.根据权利要求1所述的一种涡轮流量计，其特征在于微控制器可实现振动信号的频谱分析并作出故障诊断和发出报警信号。3. A turbine flowmeter according to claim 1, characterized in that the microcontroller can realize the spectrum analysis of the vibration signal, make fault diagnosis and issue an alarm signal. 4.根据权利要求1和权利要求3所述的一种涡轮流量计，其特征在于其可实现压力、流量、温度测量和故障诊断。4. A turbine flowmeter according to claim 1 and claim 3, characterized in that it can realize pressure, flow, temperature measurement and fault diagnosis. 5.根据权利要求1所述的一种涡轮流量计，其特征在于流量计通过多种总线方式进行信号传递。5 . The turbine flowmeter according to claim 1 , wherein the flowmeter transmits signals through a variety of bus methods. 6 .
CN202010577027.2A 2020-06-19 2020-06-19 A turbine flowmeter Pending CN113899412A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010577027.2A CN113899412A (en) 2020-06-19 2020-06-19 A turbine flowmeter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010577027.2A CN113899412A (en) 2020-06-19 2020-06-19 A turbine flowmeter

Publications (1)

Publication Number Publication Date
CN113899412A true CN113899412A (en) 2022-01-07

Family

ID=79186558

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010577027.2A Pending CN113899412A (en) 2020-06-19 2020-06-19 A turbine flowmeter

Country Status (1)

Country Link
CN (1) CN113899412A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118243200A (en) * 2024-05-28 2024-06-25 上海真兰仪表科技股份有限公司 Gas turbine flowmeter fault diagnosis method and system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR980010369A (en) * 1998-02-20 1998-04-30 김정언 Cyclone Turbine Type Flow Meter
CN2537963Y (en) * 2002-05-21 2003-02-26 田宏杰 Intelligent gas flow meter
CN201440079U (en) * 2009-02-10 2010-04-21 中国人民解放军总后勤部油料研究所 Liquid turbine flowmeter
CN203177898U (en) * 2013-04-08 2013-09-04 成都赛腾自动化工程有限公司 Turbine flow meter used on hydraulic turbine set
CN104596593A (en) * 2014-12-28 2015-05-06 宜宾机电一体化研究所 Intelligent monitoring device for gas flow measurement

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR980010369A (en) * 1998-02-20 1998-04-30 김정언 Cyclone Turbine Type Flow Meter
CN2537963Y (en) * 2002-05-21 2003-02-26 田宏杰 Intelligent gas flow meter
CN201440079U (en) * 2009-02-10 2010-04-21 中国人民解放军总后勤部油料研究所 Liquid turbine flowmeter
CN203177898U (en) * 2013-04-08 2013-09-04 成都赛腾自动化工程有限公司 Turbine flow meter used on hydraulic turbine set
CN104596593A (en) * 2014-12-28 2015-05-06 宜宾机电一体化研究所 Intelligent monitoring device for gas flow measurement

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118243200A (en) * 2024-05-28 2024-06-25 上海真兰仪表科技股份有限公司 Gas turbine flowmeter fault diagnosis method and system
CN118243200B (en) * 2024-05-28 2024-08-23 上海真兰仪表科技股份有限公司 A gas turbine flowmeter fault diagnosis method and system

Similar Documents

Publication Publication Date Title
CN105675113B (en) Rotating machinery angular domain vibration signal acquisition device based on microsensor and method
CN106382882A (en) Test system and test method of rotating machinery rotor-stator rim field
CN104459187A (en) Device and method for measuring rotating speed of large rotating equipment
CN105823581B (en) A system and method for wirelessly measuring the surface pressure of pump impeller blades
CN110686856A (en) Vibration monitoring, early warning and safety protection system for wind tunnel test bed of helicopter 2 m-diameter rotor
CN113899412A (en) A turbine flowmeter
CN110702284B (en) a dynamometer
CN101539395B (en) On-line monitoring device for internal and external magnetic steel gap of permanent magnetic coupling of magnetic pump
TW200402530A (en) Axial torsion vibration measurement device of the internal pump
CN206725301U (en) Flow rate detection device for air sampling detector
CN101776521A (en) Fixed rotating speed trigger non-steady state signal acquisition device of mechanical rotation system
Mones et al. Performance evaluation of wireless MEMS accelerometer for reciprocating compressor condition monitoring
CN203422633U (en) Multi-signal acquisition velocity measurement and reverse rotation protection control device
CN111337707B (en) High-speed acquisition type wireless speed test module and speed measurement method thereof
CN202350728U (en) Monitor for axial displacement
CN209878287U (en) A shafting dynamic resistance torque testing device
CN201343399Y (en) Microcomputer rotary position-limiting and speed-limiting combination switch
CN202851390U (en) Balancing disk wear monitoring instrument for multistage centrifugal pump
CN208351501U (en) A kind of automatic detection operation platform of multi signal output mechanical counter
CN111980903A (en) Detection assembly for measuring pressure in pump body, detection assembly of compressor and compressor
CN207842830U (en) Converter for installing wheel speed sensors on wheel
CN221281004U (en) Explosion-proof type environmental air monitoring and early warning device
CN202351256U (en) Wall mounted intelligent revolution meter
CN212722932U (en) Universal shaft speed measuring device based on 3D printing and single chip microcomputer
CN205193095U (en) Engineering machinery camshaft, bent axle signal generator

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20220107

WD01 Invention patent application deemed withdrawn after publication