Detection device of water motor vibration monitoring system

Abstract

The utility model relates to the technical field of water motor vibration monitoring, and provides a detection device of a water motor vibration monitoring system, which comprises a protective shell, a display screen and a control button are arranged on the front side of the protective shell, and a plurality of data processing blocks used for processing sensor data are detachably connected to the bottom of the protective shell. A CAN bus interface and a power supply interface are arranged on the side surface of the protective shell, a microcontroller is arranged in the protective shell, the data processing block, the CAN bus interface and the power supply interface are all electrically connected with the microcontroller, the data processing block is provided with a sensor interface, the data interface is connected with a sensor data output head, and the sensor data output head is connected with the CAN bus interface. And the sensor data output interface is connected with a monitoring sensor. By means of the technical scheme, the problem that in the prior art, when a sensor breaks down, shutdown is usually needed for maintenance, and the complexity and cost of system maintenance are increased is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to water turbine vibration monitoring technical field, specifically, relate to a kind of detection device of water turbine vibration monitoring system. BACKGROUND

[0002] Water turbine generator is the equipment for generating electricity using water resources, and is widely used in hydropower stations. Its basic principle is to drive the water turbine to rotate by water flow, and the water turbine drives the generator rotor to rotate, thereby converting water energy into electric energy. Water turbine generator has the advantages of clean, efficient and renewable, and is an important part of modern energy system.

[0003] During the operation of water turbine generator, vibration and swing are common phenomena. Excessive vibration and swing not only affect the power generation efficiency, but also may cause equipment wear, failure, and even serious safety accidents. Therefore, vibration and swing monitoring of water turbine generator is a key measure to ensure its safe and stable operation.

[0004] The sensor unit of the traditional vibration monitoring system is integrated with other components, which makes system maintenance difficult. Once the sensor fails, it usually needs to be stopped for maintenance, which increases the complexity and cost of system maintenance. UTILITY MODEL CONTENT

[0005] The utility model provides a kind of detection device of water turbine vibration monitoring system, by the sensor unit designed as independent module, improve the maintainability, flexibility and reliability of system.

[0006] The technical scheme of the utility model is as follows:

[0007] A kind of detection device of water turbine vibration monitoring system, including protective shell, display screen and control button are equipped in the front side of the protective shell, the bottom of the protective shell is detachably connected with a plurality of data processing blocks for processing sensor data, CAN bus interface, power interface are equipped in the side of the protective shell, microcontroller is equipped in the inside of the protective shell, the data processing block, CAN bus interface, power interface are all electrically connected with microcontroller, the data processing block is equipped with sensor interface, sensor data output head is connected to the sensor interface, monitoring sensor is connected to the sensor data output head.

[0008] Further, the protection shell bottom is provided with a plurality of clamping grooves, the data processing block is embedded in the clamping grooves, the two sides of the clamping grooves are provided with first fixing grooves, the bottom of the clamping grooves is provided with a data transmission head, one end of the data processing block is provided with a data interface, the data transmission head is embedded in the data interface, the sensor interface is located at the end of the data processing block away from the data interface, the two sides of the data processing block are provided with fixing pieces, one end of the fixing pieces is fixedly connected with the data processing block, the end of the fixing pieces away from the fixing piece and the data processing block is outwardly extended and extends out of the data processing block, a moving gap is formed between the side of the fixing piece facing the data processing block and the data processing block, the side of the fixing piece away from the moving gap is provided with a first fixing protrusion, and the first fixing protrusion is embedded in the first fixing groove.

[0009] Further, the sensor interface is provided with an annular groove, the sensor data output head is provided with an annular protrusion, the annular groove protrusion is embedded in the annular groove, the data processing block is provided with a second fixing groove, the second fixing groove and the sensor interface are located on the same side of the data processing block, the sensor data output head is provided with a second fixing protrusion, and the second fixing protrusion is embedded in the second fixing groove.

[0010] Further, the data processing block comprises a signal conditioning module, an ADC module and a clock signal module.

[0011] Further, the monitoring sensor comprises an acceleration sensor, a speed sensor and a displacement sensor.

[0012] Further, the protection shell is also provided with a USB interface.

[0013] The working principle and beneficial effects of the utility model are as follows:

[0014] The utility model discloses a plurality of detachable data processing blocks are arranged on the protection shell, the data processing block is connected with the sensor, the data of the sensor are handled, the calculation pressure of microcontroller is reduced, and the failure condition is reduced. The modular design of detachable data processing block makes the data processing block can be independently replaced and maintained, when the data processing block or sensor fails, only need to replace the failure module, and do not need to stop maintaining the whole system. ACCURATE DRAWINGS

[0015] The utility model will be further explained in detail in connection with the attached drawing and specific embodiment.

[0016] Figure 1 It is the structural schematic diagram of the utility model;

[0017] Figure 2 It is the explosion drawing of the utility model;

[0018] Figure 3 is a left view of the utility model;

[0019] Figure 4 is Figure 2 is an enlarged view of A in the middle;

[0020] Figure 5 is a lower view of the protective shell in the utility model;

[0021] Figure 6 is a structural schematic diagram of the data processing block in the utility model.

[0022] Figure 7 is a circuit principle block diagram of the utility model.

[0023] In the figure: 1, protective shell; 2, data processing block; 3, sensor data output head; 11, display screen; 12, control button; 13, card slot; 14, CAN bus interface; 15, power interface; 16, USB interface; 17, data transmission head; 21, sensor interface; 22, data interface; 23, fixed sheet; 24, annular groove; 25, second fixed recess; 31, annular protrusion; 32, second fixed protrusion; 131, first fixed recess; 231, first fixed protrusion; 232, moving gap. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are involved in the protection scope of the utility model.

[0025] Embodiment 1

[0026] As Figures 1-6 shown, embodiment 1 proposes a detection device of water turbine vibration monitoring system, including protective shell 1, the front side of protective shell 1 is provided with display screen 11 and control button 12, the bottom of protective shell 1 is detachably connected with a plurality of data processing blocks 2 for processing sensor data, the side of protective shell 1 is provided with CAN bus interface 14, power interface 15, the inside of protective shell 1 is provided with microcontroller, data processing block 2, CAN bus interface 14, power interface 15 are electrically connected with microcontroller, data processing block 2 is provided with sensor interface 21, sensor interface 21 is connected with sensor data output head 3, sensor data output head 3 is connected with monitoring sensor.

[0027] The protective shell 1 is an external protective structure of the overall device, providing protection functions. The display screen 11 and the control button 12 are used to display monitoring data in real time and user operation control, improving user interface friendliness. The data processing block 2 is used to process sensor data, and its modular design allows the data processing block 2 to be independently replaced and maintained. The sensor interface 21 and the sensor data output head 3 are used to realize standardized access and output of sensor data, facilitating the replacement and expansion of different sensors. The CAN bus interface 14 is used to connect with other devices or systems. The power supply interface 15 is used to provide power support for the device. The microcontroller is responsible for core data processing and control, and adjusts the work of each module. The microcontroller of the embodiment can use PIC32MX795F512L type microcontroller. The PIC32MX795F512L microcontroller has rich peripheral interfaces, suitable for applications that require more communication interfaces and processing capabilities. The monitoring sensor is connected with the data processing block 2 through the sensor interface 21, and is used to collect vibration data.

[0028] In embodiment 1, the data processing block 2 includes a signal conditioning module, an ADC module, and a clock signal module. The signal conditioning module is used to condition the sensor signal, such as amplification, filtering, etc., to improve the signal quality. The ADC module is used to convert the conditioned analog signal into a digital signal for the microcontroller to process. The clock signal module is used to provide a stable clock signal for synchronizing data acquisition and processing.

[0029] In embodiment 1, the monitoring sensor includes an acceleration sensor, a speed sensor, and a displacement sensor. The acceleration sensor, the speed sensor, and the displacement sensor are used to measure vibration acceleration, vibration speed, and vibration displacement, respectively. The acceleration sensor uses a three-axis piezoelectric acceleration sensor. The three-axis piezoelectric acceleration sensor has three-axis measurement capability, which can comprehensively monitor vibration in all directions. The speed sensor uses an eddy current speed sensor. The eddy current speed sensor uses non-contact measurement, which can avoid mechanical wear and tear, prolong the service life, and work in harsh environments such as high temperature and high humidity. The displacement sensor uses an eddy current displacement sensor. The eddy current displacement sensor uses high-precision non-contact measurement, which is suitable for detecting small displacements and can work in harsh environments, with high temperature resistance and strong anti-interference capability.

[0030] In embodiment 1, the protective shell 1 also has a USB interface 16. The USB interface 16 is used to provide connection of external devices, supporting functions such as data download and device maintenance.

[0031] Embodiment 2

[0032] As Figures 1-5As shown, the embodiment 2 increases the basis of embodiment 1, the bottom of the protective shell 1 is provided with a plurality of clamping grooves 13, the data processing block 2 is embedded in the clamping groove 13, the first fixing groove 131 is arranged on both sides of the clamping groove 13, the data transmission head 17 is arranged at the bottom of the clamping groove 13, one end of the data processing block 2 is provided with a data interface 22, the data transmission head 17 is embedded in the data interface 22, the sensor interface 21 is located at one end of the data processing block 2 away from the data interface 22, the fixing piece 23 is arranged on both sides of the data processing block 2, one end of the fixing piece 23 is fixedly connected with the data processing block 2, the end of the fixing piece 23 away from the connection between the fixing piece 23 and the data processing block 2 extends outward and extends out of the data processing block 2, the moving gap 232 is arranged between the side of the fixing piece 23 facing the data processing block 2 and the data processing block 2, the first fixing protrusion 231 is arranged on the side of the fixing piece 23 away from the moving gap 232, and the first fixing protrusion 231 is embedded in the first fixing groove 131.

[0033] The clamping groove 13 is used for installing the data processing block 2, so that the data processing block 2 can be stably connected with the protective shell 1. The data transmission head 17 is used for connecting the output interface of the data processing block 2 with the interface in the protective shell 1, so as to realize reliable data transmission, ensure that the data processing block 2 can be stably connected with the microcontroller, and realize stable and reliable data transmission, thereby avoiding data loss or error caused by poor interface contact. The interface is connected with the data transmission head 17, and data transmission is realized. The first fixing groove 131 and the first fixing protrusion 231 are used for stably fixing the data processing block 2 in the clamping groove 13. The first fixing groove 131 and the first fixing protrusion 231 provide a firm fixing mode, prevent displacement of the data processing block 2 caused by vibration or other external forces during use, and ensure stability and reliability of the equipment. The fixing piece 23 is used for dismounting the data processing block 2. By moving the fixing piece 23 to the data processing block 2, the gap between the fixing piece 23 and the data processing block 2 is reduced, so that the first fixing protrusion 231 is separated from the first fixing groove 131, the data processing block 2 can slide out of the clamping groove 13, and dismounting is realized.

[0034] In the embodiment 2, the sensor interface 21 is provided with an annular groove 24, the sensor data output head 3 is provided with an annular protrusion 31, the annular groove protrusion is embedded in the annular groove 24, the data processing block 2 is provided with a second fixing groove 25, the second fixing groove 25 and the sensor interface 21 are located on the same side of the data processing block 2, the sensor data output head 3 is provided with a second fixing protrusion 32, and the second fixing protrusion 32 is embedded in the second fixing groove 25. The annular groove 24 and the annular protrusion 31 are used for fixing the sensor data output head 3 with the sensor interface 21, so as to prevent the sensor data output head 3 from falling off the sensor interface 21. The second fixing groove 25 and the second fixing protrusion 32 are used for further fixing the sensor data output head 3, preventing the interface from loosening or poor contact, and improving the stability of data transmission.

[0035] The above merely preferred embodiments of the present application are not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A detection device of a hydroelectric machine vibration monitoring system, comprising a protective shell (1), the front side of the protective shell (1) is provided with a display screen (11) and control buttons (12), characterized in that, The bottom of the protective shell (1) is detachably connected with a plurality of data processing blocks (2) for processing sensor data, the side of the protective shell (1) is provided with a CAN bus interface (14) and a power supply interface (15), the inside of the protective shell (1) is provided with a microcontroller, the data processing block (2), the CAN bus interface (14) and the power supply interface (15) are electrically connected with the microcontroller, the data processing block (2) is provided with a sensor interface (21), the sensor interface (21) is connected with a sensor data output head (3), and the sensor data output head (3) is connected with a monitoring sensor.

2. The detection device of a hydroelectric machine hunting monitoring system according to claim 1, characterized in that, The bottom of the protective shell (1) is provided with a plurality of clamping grooves (13), the data processing block (2) is embedded into the clamping groove (13), the two sides of the clamping groove (13) are provided with first fixing grooves (131), the bottom of the clamping groove (13) is provided with a data transmission head (17), one end of the data processing block (2) is provided with a data interface (22), the data transmission head (17) is embedded into the data interface (22), the sensor interface (21) is located at one end of the data processing block (2) away from the data interface (22), the two sides of the data processing block (2) are provided with fixing pieces (23), one end of the fixing piece (23) is fixedly connected with the data processing block (2), the end of the fixing piece (23) away from the fixing piece (23) and the data processing block (2) is extended outward and extends out of the data processing block (2), the side of the fixing piece (23) facing the data processing block (2) is provided with a moving gap (232) between the fixing piece (23) and the data processing block (2), and the side of the fixing piece (23) away from the moving gap (232) is provided with a first fixing protrusion (231). The first fixing protrusion (231) is embedded into the first fixing groove (131).

3. The detection device of a hydroelectric machine hunting monitoring system according to claim 1, wherein, The sensor interface (21) is provided with an annular groove (24), the sensor data output head (3) is provided with an annular protrusion (31), the annular groove protrusion is embedded into the annular groove (24), the data processing block (2) is provided with a second fixing groove (25), the second fixing groove (25) and the sensor interface (21) are located on the same side of the data processing block (2), and the sensor data output head (3) is provided with a second fixing protrusion (32). The second fixing protrusion (32) is embedded into the second fixing groove (25).

4. The detection device of a hydroelectric machine hunting monitoring system of claim 1, wherein, The data processing block (2) comprises a signal conditioning module, an ADC module and a clock signal module.

5. The detection device of a hydroelectric machine hunting monitoring system of claim 1, wherein, The monitoring sensor comprises an acceleration sensor, a speed sensor and a displacement sensor.

6. The detection device of a hydroelectric machine hunting monitoring system of claim 1, wherein, The protective shell (1) is also provided with a USB interface (16).

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