Gas turbine data acquisition device and acquisition method

Abstract

The application discloses a kind of gas turbine data acquisition device and acquisition method, it is related to data acquisition technical field.The device includes case main body, data acquisition board card, motherboard, signal conversion board card, industrial computer, switch board card, power supply board card, touch screen.Each data acquisition board card is connected with motherboard using plug-in connection, one end of each signal conversion board card is connected with motherboard using plug-in connection, the other end is connected with terminal row, terminal row interface is connected with sensor.Switch board card is connected with motherboard using plug-in connection, each data acquisition board card and switch board card are communicated by the network interface signal line of motherboard, the other end of switch board card is connected with industrial computer by network interface, and the signal collected is transmitted to industrial computer after being processed by data acquisition board card to make further analysis.The characteristics of the application are that the collected signals are multiple, the acquisition board card is reusable and expandable, the switch board card is designed to be integrated in the case, is convenient to carry, and the signal conversion board card is designed to be easy to install.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of data acquisition, in particular to a gas turbine data acquisition device and method. BACKGROUND

[0002] The gas turbine is a multifunctional energy supply machine that converts fuel heat energy into mechanical energy and outputs power to drive equipment to run, has the advantages of high thermal efficiency, stable operation, fast start and small pollution, and is widely used in many fields such as energy, aerospace, ship, etc. However, the gas turbine works in a harsh operating environment of high temperature, high speed and alternating heavy load for a long time, and the main parts bear the coupling of multiple loads, and the stress condition is complex. Abnormal operating conditions such as shaft vibration, shaft bending, unit vibration, over-speed operation, thermal suspension and overpressure are prone to occur during the operation of the gas turbine, and a data acquisition device needs to be matched to collect and analyze these parameters in real time. Once an abnormal phenomenon is detected, the device can timely alarm, so as to ensure the normal operation of the gas turbine and reduce the loss caused by system failure.

[0003] The Chinese invention patent with application number 201810419134.5 provides a centrifugal pump data acquisition device, which can realize data acquisition and analysis of vibration signals, but cannot simultaneously collect multiple types of signals such as temperature and pressure, and the data collected by the device needs to be transmitted to a remote server for analysis. The Chinese invention patent with application number 202111280459.8 provides a sound vibration temperature signal synchronous acquisition method and device for a hydraulic turbine unit, which can simultaneously collect multiple types of signals. The data collected by the device needs to be transmitted to a cloud server for monitoring the operating state of the hydraulic turbine unit. The above data acquisition devices send the collected data to a cloud server for data analysis, need to additionally configure a switch for data transmission, and the sensor signal lines are directly connected to the backplane of the case, which is messy and not beautiful. SUMMARY

[0004] The present application aims to overcome the defects in the prior art and provide a gas turbine data acquisition device and method. The present application can collect multiple types of signals, the acquisition board card is reusable and expandable, the switch board card is integrated in the case, is convenient to carry, and the signal conversion board card is designed and installed conveniently.

[0005] The specific technical solutions adopted by the present application are as follows:

[0006] In a first aspect, the present application provides a gas turbine data acquisition device, comprising a data acquisition board card, a signal conversion board card, a mother board, a switch board card, an industrial computer and a power board card installed in the internal cavity of the main body of the case and the air slot of the panel.

[0007] The data acquisition board card is connected with the mainboard in a plug-in manner; one end of the signal conversion board card is connected with the mainboard in a plug-in manner, and the other end is connected with the terminal row, and the terminal row interface is connected with the sensor; the switch board card comprises a plug-in single board and a switch connected through double-row pins and sockets, one end of the switch board card is connected with the mainboard in a plug-in manner, the data acquisition board card and the switch board card communicate through the network port signal line of the mainboard, and the other end of the switch board card is connected with the industrial computer through the network port, so that the collected signals can be transmitted to the industrial computer after being processed by the data acquisition board card for further analysis; the power supply board card is connected with the mainboard in a plug-in manner.

[0008] Preferably, the power supply board card comprises an AC power supply board card and a UPS power supply board card, and the AC power supply board card and the UPS power supply board card are connected with the mainboard in a plug-in manner.

[0009] Preferably, the data acquisition board card comprises eight vibration signal acquisition board cards, one process quantity signal acquisition board card and one on-off quantity signal acquisition board card; the vibration signal acquisition board card, the process quantity signal acquisition board card and the on-off quantity signal acquisition board card are connected with the 96-core European socket in front of the mainboard in a plug-in manner.

[0010] Further, the vibration signal acquisition board card comprises eight vibration signal acquisition channels and one key signal acquisition channel, the single-channel sampling frequency is 128 kHz, and the sampling accuracy is 24 bits; the process quantity signal acquisition board card comprises 32 data acquisition channels, the single-channel sampling frequency is 50 Hz, and the sampling accuracy is 16 bits; the on-off quantity signal acquisition board card comprises 48 data acquisition channels, the single-channel sampling frequency is 1000 Hz, and the sampling accuracy is 1 bit.

[0011] Further, the sensors used by the vibration signal acquisition board card comprise acceleration sensors and eddy current sensors, which are used to collect rotor shaft displacement, shaft bending, unit vibration and rotor speed; the sensors used by the process quantity signal acquisition board card comprise temperature sensors and pressure sensors, which are used to collect data near the inlet gas and near the outlet gas; the sensors used by the on-off quantity signal acquisition board card are on-off quantity sensors, which are used to collect electromagnetic switches and relays installed on the mechanical equipment.

[0012] Further, the vibration signal acquisition board card is connected with the front of the mother board through the European plug, each vibration signal acquisition board card is equipped with a vibration signal conversion board card; one end of the vibration signal conversion board card is connected with the rear of the mother board through the European plug, and the other end is a DB50 connector for being connected with an external terminal row; the process quantity signal acquisition board card is connected with the front of the mother board through the European plug, each process quantity signal acquisition board card is equipped with a process quantity signal conversion board card; one end of the process quantity signal conversion board card is connected with the rear of the mother board through the European plug, and the other end is a DB50 connector for being connected with an external terminal row; the on-off quantity signal acquisition board card is connected with the front of the mother board through the European plug, each on-off quantity signal acquisition board card is equipped with an on-off quantity signal conversion board card; one end of the on-off quantity signal conversion board card is connected with the rear of the mother board through the European plug, and the other end is a DB50 connector for being connected with an external terminal row.

[0013] Preferably, the signal conversion board card comprises a vibration signal conversion board card, a process quantity signal conversion board card and an on-off quantity signal conversion board card; one end of the vibration signal conversion board card, the process quantity signal conversion board card and the on-off quantity signal conversion board card is connected with the 48-core European socket at the rear of the mother board in a plug-in manner, and the other end is a DB50 connector and is connected with the DB50 connector of the external terminal row through a DB50 connecting line, and the other end of the external terminal row is connected with the sensor.

[0014] Preferably, the switch is a 16-way gigabit switch.

[0015] Preferably, a touch screen for displaying data received from the data acquisition board card in real time is further installed on the external panel of the plug-in single board, and the touch screen is connected with the plug-in single board in a bolt fastening manner; a handle for facilitating the plug-in of the switch board card and the mother board is further installed on the external panel of the plug-in single board.

[0016] In the second aspect, the application provides a collection method using the gas turbine data collection device of any one of the first aspect, and the method specifically comprises the following steps:

[0017] Step 1: installing the data acquisition board card, the signal conversion board card and the switch board card into the corresponding slots of the main body of the case, connecting the signal lines of the sensor to the external terminal row, and connecting the signal conversion board card and the external terminal row through a DB50 connecting line;

[0018] Step 2: collecting the analog signal from the sensor, processing the analog signal through the pretreatment circuit of the data acquisition board card, converting the analog signal into a digital signal through an AD converter, and sending the digital signal to the mother board;

[0019] Step 3: transmitting the digital signal to the switch board card through the mother board, connecting the switch board card and the industrial computer through a network port, and transmitting the digital signal to the industrial computer for further analysis.

[0020] Step 4: Real-time display of data received from the data acquisition board through the touch screen on the main body panel of the case.

[0021] The present application has the following beneficial effects relative to the prior art:

[0022] The present application can realize synchronous data acquisition of vibration signals, process quantity signals and switching quantity signals during the operation of a gas turbine; the interfaces of the various data acquisition board cards are unified, the acquisition board cards are reusable, and the number of vibration signal acquisition board cards can be expanded according to the number of measuring points; the switch board card is designed to be integrated in the case, which is convenient to carry; the signal conversion board card is designed to be easy to install. Further, the acquired signals are transmitted to an industrial computer for further analysis, and the touch screen installed on the main case can be used for real-time display. The device can timely and accurately diagnose abnormal conditions of the gas turbine, improving the reliability and safety of the operation of the gas turbine. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a schematic view of the gas turbine data acquisition device in the present application;

[0024] Figure 2 is a schematic view of the switch board card of the gas turbine data acquisition device in the present application;

[0025] Figure 3 is a front view of the motherboard of the gas turbine data acquisition device in the present application;

[0026] Figure 4 is a rear view of the motherboard of the gas turbine data acquisition device in the present application;

[0027] Figure 5 is a rear view of the gas turbine data acquisition device in the present application;

[0028] In the drawings, the reference signs are: case main body 1, vibration signal acquisition board card 2, process quantity signal acquisition board card 3, switching quantity signal acquisition board card 4, motherboard 5, vibration signal conversion board card 6, process quantity signal conversion board card 7, switching quantity signal conversion board card 8, touch screen 9, plug-in single board 10, industrial computer 11, switch 12, AC power board card 13, UPS power board card 14, first network port a, USB interface b, HDMI interface c, second network port d, 96-core European socket e, 48-core European socket f, DB50 connector g. DETAILED DESCRIPTION

[0029] The present application will be further described and explained in conjunction with the drawings and specific embodiments. The technical features of each embodiment in the present application can be combined accordingly without conflict.

[0030] AsFigure 1 As shown in the figure, the gas turbine data acquisition device provided by the application mainly comprises a data acquisition board card, a signal conversion board card, a motherboard 5, a switch board card, an industrial computer 11 and a power supply board card, and the data acquisition board card, the signal conversion board card, the motherboard 5, the switch board card, the industrial computer 11 and the power supply board card are respectively installed in the internal cavity and the panel slot of the main body 1 of the case. The data acquisition board card and the motherboard 5 are connected in a plug-in manner. One end of the signal conversion board card is connected to the motherboard 5 in a plug-in manner, and the other end is connected to a terminal row, and the terminal row interface is connected to a sensor. The power supply board card and the motherboard are connected in a plug-in manner.

[0031] As shown in the figure, Figure 2 The switch board card comprises a plug-in single board 10 and a switch 12, and the plug-in single board 10 and the switch 12 are connected through double-row pins and sockets. One end of the switch board card is connected to the motherboard 5 in a plug-in manner. The data acquisition board card and the switch board card communicate through the network port signal line of the motherboard 5. The other end of the switch board card is connected to the industrial computer 11 through the network port. The collected signals can be transmitted to the industrial computer 11 for further analysis after being processed by the data acquisition board card. Specifically, the network port on the industrial computer 11 is connected to the first network port a on the plug-in single board 10.

[0032] In this embodiment, a touch screen 9 is also installed on the external panel of the plug-in single board 10, which is used to display the data received from the data acquisition board card in real time. The touch screen 9 is connected to the plug-in single board 10 in a bolt fastening manner. A USB interface b, an HDMI interface c and a second network port d are arranged below the touch screen 9, wherein the USB interface b is used for downloading data, the HDMI interface c is used for external display screen, and the second network port d is used for remote communication. A handle is designed above the touch screen, which facilitates the plug-in of the switch board card and the motherboard. The case has an expansion VGA interface, and an external display screen can be connected. Cooling fins are installed on both sides of the switch board card to dissipate heat for the case when the system is working.

[0033] The data acquisition board card comprises a vibration signal acquisition board card 2, a process quantity signal acquisition board card 3 and a switching quantity signal acquisition board card 4. The number of the vibration signal acquisition board card 2 can be expanded according to the number of measuring points. In this embodiment, eight vibration signal acquisition board cards 2 are used, and one process quantity signal acquisition board card 3 and one switching quantity signal acquisition board card 4 are used. As shown in the figure, Figure 3 The vibration signal acquisition board card 2, the process quantity signal acquisition board card 3 and the switching quantity signal acquisition board card 4 are connected to the 96-core European socket e in front of the motherboard 5 in a plug-in manner.

[0034] In the embodiment, the sensors used by the vibration signal acquisition board card include acceleration sensors and eddy current sensors, each of which is used to collect rotor shaft displacement, shaft bending, unit vibration, rotor speed and other measurement points. The sensors used by the process quantity signal acquisition board card include temperature sensors and pressure sensors, each of which is used to collect measurement points such as the vicinity of the inlet gas and the vicinity of the outlet gas. The sensor used by the on-off quantity signal acquisition board card is an on-off quantity sensor, which is used to collect measurement points such as electromagnetic switches and relays installed on mechanical equipment.

[0035] The vibration signal acquisition board card is connected to the front of the mother board through a European plug. Each vibration acquisition board card is equipped with a vibration signal conversion board card, wherein the vibration signal conversion board card is connected to the rear of the mother board through a European plug, and the other end of the signal conversion board card is a DB50 connector. The data acquisition device is equipped with a terminal strip, each terminal of the terminal strip is connected to the sensor signal line, and the other end is a DB50 connector. By designing the signal conversion board card, the sensor signal line and the case only need to be connected through the DB50 connection line, wherein one end of the DB50 signal line is connected to the terminal strip, and the other end is connected to the signal conversion board card.

[0036] The connection mode of the process quantity signal acquisition board card and the on-off quantity signal acquisition board card is the same as that of the vibration signal acquisition board card. The interfaces of the vibration signal acquisition board card, the process quantity signal acquisition board card and the on-off quantity signal acquisition board card are unified, so the interfaces on the mother board can be reused and can be arbitrarily plugged in various types of board cards.

[0037] Each vibration signal acquisition board card 2 includes 8 vibration signal acquisition channels and 1 key signal acquisition channel. Each process quantity signal acquisition board card 3 includes 32 data acquisition channels. Each on-off quantity signal acquisition board card 4 includes 48 data acquisition channels. The single-channel sampling frequency of the vibration signal acquisition board card 2 is 128 kHz, and the sampling accuracy is 24 bits. The single-channel sampling frequency of the process quantity signal acquisition board card 3 is 50 Hz, and the sampling accuracy is 16 bits. The single-channel sampling frequency of the on-off quantity signal acquisition board card 4 is 1000 Hz, and the sampling accuracy is 1 bit. The maximum transmission amount is calculated as follows:

[0038]

[0039] If all the data acquisition cards are used, the switch needs at least 187.57M bandwidth and 11 network ports, so a 16-way gigabit switch 12 is selected. The vibration signal acquisition card 2, the process quantity signal acquisition card 3 and the switch quantity signal acquisition card 4 communicate with the switch card through the network port signal line of the motherboard 5, and the other end of the switch card is connected with the industrial computer 11 through the network port, and the collected signals are transmitted to the industrial computer 11 after being processed by the vibration signal acquisition card 2, the process quantity signal acquisition card 3 and the switch quantity signal acquisition card 4 for further analysis. Through the design of the plug-in board 10, the gigabit switch 12 can be integrated in the case, which is easy to carry.

[0040] The signal conversion card piece includes a vibration signal conversion card 6, a process quantity signal conversion card 7 and a switch quantity signal conversion card 8. As shown in Figure 4 The vibration signal conversion card 6, the process quantity signal conversion card 7 and the switch quantity signal conversion card 8 are connected with the 48-core European socket f at the rear of the motherboard 5 in a plug-in manner. As shown in Figure 5 The other end of the vibration signal conversion card 6, the process quantity signal conversion card 7 and the switch quantity signal conversion card 8 is a DB50 connector g and is connected with the DB50 connector of the external terminal row through the DB50 connection line, and the other end of the external terminal row is connected with the sensor.

[0041] In this embodiment, the power supply card piece includes an AC power supply card 13 and a UPS power supply card 14, and the AC power supply card 13 and the UPS power supply card 14 are connected with the motherboard 5 in a plug-in manner.

[0042] The collection method of the above gas turbine data acquisition device is as follows:

[0043] Step 1: Install the data acquisition card piece, the signal conversion card piece and the switch card into the corresponding slots of the case main body 1, connect the signal line of the sensor to the external terminal row, and connect the signal conversion card piece and the external terminal row through the DB50 connection line.

[0044] Step 2: The analog signals collected from the sensor are processed by the pre-processing circuit of the data acquisition card piece, and then converted into digital signals by the AD converter and sent to the motherboard 5.

[0045] Step 3: The digital signals are transmitted to the switch card through the motherboard 5, the switch card and the industrial computer 11 are connected through the network port, and the digital signals are transmitted to the industrial computer 11 for further analysis.

[0046] Step 4: The data received from the data acquisition card piece is displayed in real time through the touch screen 9 on the panel of the case main body 1.

[0047] The device is characterized in that the collected signals are multiple, the collection board card is reusable and extensible, the switch board card is integrated in the case, is convenient to carry, and the signal conversion board card is designed and is easy to install.

[0048] The above-described embodiments are only a preferred scheme of the present application, and are not intended to limit the present application. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application. Therefore, all technical schemes obtained by equivalent replacement or equivalent transformation fall within the protection scope of the present application.

Claims

1. A gas turbine data acquisition device, characterized in that, Includes data acquisition board, signal conversion board, motherboard (5), switch board, industrial computer (11) and power board installed in the internal cavity and panel slot of the main body of the chassis (1); The data acquisition board is plugged into the motherboard (5); one end of the signal conversion board is plugged into the motherboard (5), and the other end is connected to the terminal block, the terminal block interface is connected to the sensor; the switch board includes a plug-in single board (10) and a switch (12) connected by a double row of pins and sockets, one end of the switch board is plugged into the motherboard (5), the data acquisition board and the switch board communicate through the network signal line of the motherboard (5), the other end of the switch board is connected to the industrial computer (11) through the network port, the acquired signal can be processed by the data acquisition board and transmitted to the industrial computer (11) for further analysis; the power supply board is plugged into the motherboard (5); The power board includes an AC power board (13) and a UPS power board (14), both of which are pluggable to the motherboard (5). The data acquisition board includes 8 vibration signal acquisition boards (2), 1 process signal acquisition board (3) and 1 switch signal acquisition board (4); the vibration signal acquisition board (2), the process signal acquisition board (3) and the switch signal acquisition board (4) are connected to the 96-pin European socket (e) in front of the motherboard (5) by a plug-in connection; The vibration signal acquisition board (2) includes 8 vibration signal acquisition channels and 1 key phase signal acquisition channel, with a single channel sampling frequency of 128kHz and a sampling accuracy of 24 bits; the process quantity signal acquisition board (3) includes 32 data acquisition channels, with a single channel sampling frequency of 50Hz and a sampling accuracy of 16 bits; the switch quantity signal acquisition board (4) includes 48 data acquisition channels, with a single channel sampling frequency of 1000Hz and a sampling accuracy of 1 bit; The signal conversion board includes a vibration signal conversion board (6), a process quantity signal conversion board (7), and a switch quantity signal conversion board (8). One end of the vibration signal conversion board (6), the process quantity signal conversion board (7), and the switch quantity signal conversion board (8) is plugged into the 48-pin European socket (f) behind the motherboard (5), and the other end is a DB50 connector (g) and is connected to the DB50 connector of the external terminal block through a DB50 connecting line. The other end of the external terminal block is connected to the sensor.

2. The gas turbine data acquisition device according to claim 1, characterized in that, The sensors used in the vibration signal acquisition board (2) include an acceleration sensor and an eddy current sensor, which are used to acquire rotor shaft displacement, shaft bending, unit vibration and rotor speed; the sensors used in the process quantity signal acquisition board (3) include a temperature sensor and a pressure sensor, which are used to acquire data near the inlet gas and near the outlet gas; the sensors used in the switch quantity signal acquisition board (4) are switch quantity sensors, which are used to acquire electromagnetic switches and relays installed on mechanical equipment.

3. The gas turbine data acquisition device according to claim 1, characterized in that, The vibration signal acquisition board (2) is connected to the front of the motherboard (5) via a European plug. Each vibration signal acquisition board (2) is equipped with a vibration signal conversion board (6). One end of the vibration signal conversion board (6) is connected to the rear of the motherboard (5) via a European plug, and the other end is a DB50 connector for connecting to an external terminal block. The process quantity signal acquisition board (3) is connected to the front of the motherboard (5) via a European plug. Each process quantity signal acquisition board (3) is equipped with a process quantity signal conversion board (7). One end of the process signal conversion board (7) is connected to the rear of the motherboard (5) via a European plug, and the other end is a DB50 connector for connecting to an external terminal block; the switch signal acquisition board (4) is connected to the front of the motherboard (5) via a European plug, and each switch signal acquisition board (4) is equipped with a switch signal conversion board (8); one end of the switch signal conversion board (8) is connected to the rear of the motherboard (5) via a European plug, and the other end is a DB50 connector for connecting to an external terminal block.

4. The gas turbine data acquisition device according to claim 1, characterized in that, The switch (12) is a 16-channel gigabit switch.

5. A gas turbine data acquisition device according to claim 1, characterized in that, The external panel of the plug-in type single board (10) is also equipped with a touch screen (9) for real-time display of data received from the data acquisition board. The touch screen (9) and the plug-in type single board (10) are fastened together with bolts. The external panel of the plug-in type single board (10) is also equipped with a handle to facilitate the plugging and unplugging of the switch board and the motherboard (5).

6. A data acquisition method using the gas turbine data acquisition device according to any one of claims 1 to 5, characterized in that, Specifically as follows: Step 1: Install the data acquisition board, signal conversion board and switch board into the corresponding slots of the chassis body (1), connect the sensor signal line to the external terminal block, and connect the signal conversion board and the external terminal block through the DB50 connection cable; Step 2: The analog signal collected from the sensor is processed by the preprocessing circuit of the data acquisition board and then converted into a digital signal by the AD converter and sent to the motherboard (5). Step 3: The digital signal is transmitted to the switch board through the motherboard (5). The switch board is connected to the industrial computer (11) through the network port. The digital signal is sent to the industrial computer (11) for further analysis. Step 4: Display the data received from the data acquisition board in real time via the touch screen (9) on the main panel (1) of the chassis.

Images