Power plant equipment monitoring system

Abstract

The utility model relates to power plant equipment monitoring technical field, the utility model provides a kind of power plant equipment monitoring system, the power plant equipment monitoring system includes monitoring box, acquisition module, sensor and monitoring platform, at least one acquisition module is located in monitoring box, multiple sensors are arranged on the equipment to be measured, sensor is electrically connected with acquisition module by branch communication line, monitoring platform is electrically connected with monitoring box, the operating condition of the equipment to be measured is monitored based on the data monitoring of sensor detection, wherein, monitoring box is electrically connected with external power supply by total power line, monitoring box is electrically connected with monitoring platform by total communication line.The power plant equipment monitoring system of the utility model embodiment has the advantages of less cable consumption, small construction difficulty and low maintenance cost.

Description

Technical Field

[0001] This utility model relates to the technical field of power plant equipment monitoring systems, and in particular to a power plant equipment monitoring system. Background Technology

[0002] During the operation of a power plant, real-time monitoring of equipment status is crucial for ensuring power generation efficiency and operational safety. However, due to the wide distribution of power plant equipment, which is often located in areas with complex terrain and harsh environments, the monitoring system in related technologies typically requires laying separate power and signal cables for each sensor, and each sensor needs to be connected to a monitoring station. This results in a large amount of cabling, high construction difficulty, and high maintenance costs. Utility Model Content

[0003] This utility model provides a power plant equipment monitoring system to solve the problem of large wiring in existing power plant equipment monitoring systems and reduce the wiring of power plant equipment monitoring systems.

[0004] This utility model provides a power plant equipment monitoring system, including Monitoring box; At least one data acquisition module is located inside the monitoring box; Multiple sensors are mounted on the device under test and electrically connected to the acquisition module via a branch communication line; The monitoring station is electrically connected to the monitoring box and monitors the operating status of the device under test based on the data detected by the sensors. The monitoring box is electrically connected to an external power source via a main power cord, and is also electrically connected to the monitoring station via a main communication line.

[0005] In some embodiments, the monitoring box is equipped with a data exchange module, which is used to summarize the equipment information collected by the acquisition module and transmit the equipment information to the monitoring station through the main communication line.

[0006] In some embodiments, the monitoring box is provided with an interface, the acquisition module is electrically connected to the monitoring station through the interface, and the acquisition module is plugged into and detached from the interface.

[0007] In some embodiments, multiple interfaces are provided, and each interface is electrically connected to the data exchange module through an independent communication line.

[0008] In some embodiments, each acquisition module includes multiple acquisition units, and each acquisition unit includes multiple sensors connected in series via the branch communication line.

[0009] In some embodiments, multiple monitoring boxes are provided, and each of the multiple monitoring boxes is electrically connected to the monitoring station.

[0010] In some embodiments, the length of the branch communication line is ≤50 meters.

[0011] In some embodiments, the sensor is an acoustic sensor, a vibration sensor, or a temperature sensor.

[0012] In some embodiments, the monitoring box includes a door, the door being rotatably disposed within the monitoring box, and the monitoring box is provided with: The power supply module is electrically connected to an external power source via the main power cord; The detection module is used to detect the opening and closing status of the cabinet door; The protection module is electrically connected to both the power supply module and the detection module, and is configured to control the power supply module to shut down when the cabinet door is opened.

[0013] In some embodiments, the monitoring box is a dustproof and waterproof monitoring box.

[0014] The power plant equipment monitoring system of this utility model first connects the sensors to the monitoring box, and then only one main power line is needed to provide power support for all the acquisition modules and electronic equipment inside the monitoring box. At the same time, data interaction between the monitoring box and the monitoring station can be realized through one main communication line. This avoids the wiring method of needing to lay separate power lines and communication lines for each sensor, thereby reducing the amount of cables used, and also making the construction less difficult and the maintenance cost lower.

[0015] Therefore, the power plant equipment monitoring system of this utility model has the advantages of low cable usage, low construction difficulty, and low maintenance cost. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the power plant equipment monitoring system provided by this utility model.

[0018] Figure 2 This is a structural schematic diagram of the monitoring box provided by this utility model.

[0019] Figure label: 1. Monitoring box; 2. Acquisition module; 21. Adapter; 3. Sensor; 4. Monitoring station; 5. Data exchange module; 6. Interface; 7. Branch communication line; 8. Main communication line; 9. Main power line; 10. Power supply module; 11. Detection module; 12. Protection module; 13. Air switch; 14. Box door. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] like Figure 1 and Figure 2 As shown, the power plant equipment monitoring system of this utility model embodiment includes a monitoring box 1, a data acquisition module 2, a sensor 3, and a monitoring station 4.

[0022] At least one acquisition module 2 is installed inside the monitoring box 1.

[0023] Multiple sensors 3 are installed on the device under test, and the sensors 3 are electrically connected to the acquisition module 2 via a branch communication line 7.

[0024] The monitoring station 4 is electrically connected to the monitoring box 1, and monitors the operating status of the device under test based on the data detected by the sensor 3.

[0025] The monitoring box 1 is electrically connected to an external power source via the main power line 9, and the monitoring box 1 is electrically connected to the monitoring station 4 via the main communication line 8.

[0026] The power plant equipment monitoring system of this embodiment has one or more data acquisition modules 2, the specific number of which can be flexibly configured according to monitoring needs and equipment scale. For example, the data acquisition module 2 can have 1 to 5 modules.

[0027] Sensor 3 is installed on the device under test (DUT) to detect its operating parameters, such as operating sound, temperature, and vibration frequency. The type of sensor 3 can be selected according to actual design requirements; for example, it can be a temperature sensor or a vibration sensor.

[0028] Sensor 3 is electrically connected to acquisition module 2 via branch communication line 7 to transmit the acquired operating parameters of the device under test to acquisition module 2. After processing the data, acquisition module 2 communicates with monitoring station 4 via main communication line 8 located outside monitoring box 1. Based on the data acquired by sensor 3, monitoring station 4 performs data analysis and processing based on existing algorithms to achieve fault diagnosis and status assessment of the device under test.

[0029] The monitoring box 1 is electrically connected to an external power source via the main power cord 9 to provide a stable power supply for the acquisition module 2 and other electronic devices inside the monitoring box 1.

[0030] In related technologies, due to the wide distribution of power plant equipment, which is mostly located in areas with complex terrain and harsh environment, traditional monitoring systems usually require separate power and signal lines to be laid for each sensor 3. Each sensor 3 needs to be connected to the monitoring station 4, resulting in a large amount of cable usage, high construction difficulty, and high maintenance costs.

[0031] The power plant equipment monitoring system of this utility model first connects the sensor 3 into the monitoring box 1, and then only one main power line 9 is needed to provide power support for all the acquisition modules 2 and other electronic devices inside the monitoring box 1. At the same time, data interaction between the monitoring box 1 and the monitoring station 4 can be realized through one main communication line 8. This avoids the wiring method of needing to lay separate power lines and communication lines for each sensor 3, thereby reducing the amount of cables used and saving more than 70% of the wiring cost, thereby reducing the construction difficulty and maintenance cost.

[0032] Therefore, the power plant equipment monitoring system of this utility model has the advantages of low cable usage, low construction difficulty, and low maintenance cost.

[0033] In some embodiments, such as Figure 1 As shown, the monitoring box 1 is equipped with a data exchange module 5. The data exchange module 5 is used to summarize the equipment information collected by the acquisition module 2 and transmit the equipment information to the monitoring station 4 through the main communication line 8.

[0034] The equipment information includes data such as temperature, vibration, and sound monitored by various sensors 3 within the power plant. The data exchange module 5 centrally integrates this information and then transmits the aggregated equipment information to the monitoring station 4 via the main communication line 8. This enables the monitoring station 4 to perform comprehensive and accurate analysis and processing based on this data, thereby achieving real-time monitoring and fault diagnosis of the power plant equipment.

[0035] In some embodiments, such as Figure 1 As shown, the monitoring box 1 is equipped with an interface 6. The acquisition module 2 is electrically connected to the monitoring station 4 through the interface 6, and the acquisition module 2 and the interface 6 are plugged in and out.

[0036] Interface 6 is a standardized interface, for example, interface 6 is an IP67 waterproof interface. Interface 6 is located on the back panel or side wall inside the monitoring box 1 and is used to connect the acquisition module 2 and the monitoring station 4.

[0037] In this embodiment of the power plant equipment monitoring system, the acquisition module 2 and the interface 6 are connected by a plug-in connection. This design allows the acquisition module 2 to be quickly and easily inserted into or removed from the interface 6 without the need for complex tools or professional skills, thereby realizing the plug-and-play function of the acquisition module 2. This not only simplifies the installation and replacement process of the acquisition module 2 and reduces the time and manpower costs required for system deployment and maintenance, but also avoids problems such as damage to the interface 6 or poor contact that may be caused by frequent plugging and unplugging operations, thus improving the reliability and stability of the system.

[0038] In some embodiments, such as Figure 1 As shown, there are multiple interfaces 6, and each interface 6 is electrically connected to the data exchange module 5 through an independent communication line.

[0039] The monitoring box 1 is equipped with multiple standardized interfaces 6, which allows for the selection and connection of an appropriate number of acquisition modules 2 according to actual monitoring needs. Furthermore, when the system is expanded in the future, new acquisition modules 2 can be quickly added through simple plug-and-play operations without requiring large-scale modifications to the existing system architecture. This significantly improves the scalability and maintenance convenience of the system, meeting the long-term needs of power plant equipment expansion or monitoring parameter upgrades.

[0040] Each interface 6 is electrically connected to the data exchange module 5 via an independent communication line, forming a star topology centered on the data exchange module 5. This ensures that each acquisition module 2 has its own dedicated data transmission channel with the data exchange module 5, effectively avoiding signal interference and improving data transmission efficiency and stability. This allows the multi-parameter data such as temperature, vibration, and sound collected by each acquisition module 2 to be accurately transmitted to the data exchange module 5, and then aggregated to the monitoring station 4 via the main communication line 8, providing comprehensive and reliable data support for real-time monitoring and fault diagnosis of power plant equipment.

[0041] In some embodiments, such as Figure 1 As shown, each acquisition module 2 includes multiple acquisition units, and each acquisition unit includes multiple sensors 3 connected in series via branch communication lines 7.

[0042] Each acquisition module 2 contains multiple acquisition units, for example, there are 2 to 6 acquisition units.

[0043] Each acquisition unit is electrically connected to multiple sensors 3. Multiple sensors 3 in the same acquisition unit are connected in series through a branch communication line 7 to form a complete signal acquisition link.

[0044] The sensors 3 in each acquisition unit include, but are not limited to, acoustic sensors, vibration sensors, and temperature sensors, which are connected in series.

[0045] Furthermore, multiple acquisition modules 2 are connected to the data exchange module 5 on the backplane of the monitoring box 1 via interface 6, forming a star topology with the data exchange module 5 as the central node and each acquisition module 2 as a branch node. Simultaneously, multiple sensors 3 on each acquisition unit are connected in series via branch communication lines 7, thus constructing a chain connection relationship. Ultimately, a star-chain composite structure is formed. This structure retains the advantages of the star topology—direct connection between the data exchange module 5 and each acquisition module 2, facilitating centralized management and data aggregation—while also incorporating the chain topology's advantages of requiring no large amount of backbone cabling and allowing for flexible expansion. When a new acquisition module 2 is added, it only needs to be connected to interface 6, eliminating the need for large-scale rewiring of the entire network architecture, effectively reducing system expansion costs and complexity.

[0046] In some embodiments, such as Figure 1 As shown, there are multiple monitoring boxes 1, and all of them are electrically connected to the monitoring station 4.

[0047] Each monitoring box 1 is deployed as an independent monitoring unit in different areas of the power plant (such as the generator area, turbine area, transformer area, etc.). It integrates a power supply module 10, a data exchange module 5, and multiple acquisition modules 2, which can perform targeted monitoring of equipment in the area.

[0048] Multiple monitoring boxes 1 are connected to the monitoring station 4 via their own independent main communication lines 8, which ensures both communication independence and electrical isolation, avoiding the impact of single-point failures on the overall system reliability. The monitoring station 4 centrally processes and analyzes the equipment information from each monitoring box 1 through a unified data management platform, realizing collaborative monitoring and comprehensive evaluation of all equipment in the plant. At the same time, the distributed architecture supports flexible expansion, and the number of monitoring boxes 1 can be increased or decreased according to the scale of the power plant or monitoring needs without modifying the existing system, which significantly improves the scalability and maintenance convenience of the power plant equipment monitoring system.

[0049] In some embodiments, the length of the branch communication line 7 is ≤50 meters. For example, the length of the branch communication line 7 is 30 meters, 40 meters, or 50 meters, etc.

[0050] In the power plant equipment monitoring system of this utility model embodiment, the length of the branch communication line 7 is ≤50 meters. Each sensor 3 is directly connected to its corresponding acquisition unit (or acquisition module 2) via the branch communication line 7, thereby avoiding long-distance wiring and reducing cable material costs and wiring complexity.

[0051] In some embodiments, such as Figure 1As shown, sensor 3 is an acoustic sensor, vibration sensor, or temperature sensor.

[0052] Acoustic sensors can detect sound wave signals generated during equipment operation; vibration sensors are used to detect the vibration frequency of equipment during operation, for example, they can accurately capture the fault characteristic frequencies of equipment rotor imbalance, bearing wear, etc.; temperature sensors can use contact temperature measurement, such as temperature sensors directly attached to the surface of the equipment or embedded in the inside of key components for temperature measurement, or temperature sensors can use non-contact temperature measurement, such as temperature sensors that are infrared temperature sensors.

[0053] Multiple sensors 3 in the same acquisition unit are connected in series and powered by the acquisition module 2 to collect data synchronously, providing power plant equipment with multi-parameter fusion monitoring capabilities of sound, vibration and temperature, and meeting the needs of comprehensive equipment status assessment and early fault warning.

[0054] In some embodiments, such as Figure 2 As shown, the monitoring box 1 includes a door 14, which is rotatably mounted on the monitoring box 1. The monitoring box 1 contains a power supply module 10, a detection module 11, and a protection module 12.

[0055] The power supply module 10 is electrically connected to an external power source via the main power cable 9.

[0056] The detection module 11 is used to detect the opening and closing status of the door 14.

[0057] The protection module 12 is electrically connected to the power supply module 10 and the detection module 11 respectively, and is configured to control the power supply module 10 to shut down when the door 14 is opened.

[0058] The door 14 is rotatably connected to the monitoring box 1 via a hinge structure, enabling the door 14 to open and close flexibly.

[0059] The monitoring box 1 is equipped with a power supply module 10, which is electrically connected to an external power source through the main power line 9 to provide stable power support for the system.

[0060] The detection module 11 is used to monitor the opening and closing status of the cabinet door 14 in real time, and can quickly capture the status change when the cabinet door 14 is opened. There are various ways to set up the detection module 11, for example, the detection module 11 includes a Hall sensor or an infrared beam sensor.

[0061] The protection module 12 is electrically connected to the power supply module 10 and the detection module 11 respectively. It integrates a logic control circuit and is configured to immediately trigger a control signal to cut off the power supply to the power supply module 10 when the detection module 11 detects that the door 14 is open, thereby realizing the power outage protection function. This avoids the risk of electric shock caused by the internal liveness when maintenance personnel open the door 14, or prevents safety hazards such as short circuits caused by external factors when the door 14 is open, thereby improving operational safety.

[0062] In some embodiments, the monitoring box 1 is a dustproof and waterproof monitoring box. The monitoring box 1 can effectively block the intrusion of external dust or water flow, providing reliable physical protection for key components such as the internal power supply module 10, data exchange module 5, and acquisition module 2, enabling them to operate stably for a long time in the harsh environment of the power plant, and avoiding the risk of short circuits caused by dust accumulation or equipment corrosion caused by moisture intrusion.

[0063] In some other embodiments, the monitoring box 1 is provided with an air switch 13 to protect the circuit safety in the monitoring box 1.

[0064] The following is based on the appendix Figures 1 to 2 A specific embodiment of the present invention is described below.

[0065] The monitoring box 1 features an IP65-rated enclosure, effectively resisting the harsh environment of a hydropower plant, including humidity, dust, and potential water splashes. Internally, the monitoring box 1 is equipped with standard 19-inch DIN rails for mounting components such as the data acquisition module 2 and the power supply module 10. The power supply module 10 converts standard 380V or 220V AC power to 24V DC power. It monitors the power requirements of each data acquisition module 2 in real time and dynamically adjusts power distribution. The data acquisition module 2 supports a Modbus / RS485 hybrid communication protocol, and its interface 6 uses an IP67 waterproof M12 connector. The data acquisition module 2 is equipped with an adapter 21 to facilitate compatibility with other components and ensure normal operation.

[0066] The monitoring station 4 contains a layout diagram of the sensor 3 and a fault detection module based on existing algorithms. When the data of the sensor 3 is abnormal, the monitoring station 4 can display the location of the faulty sensor 3, thereby determining the location of the device under test, so as to maintain and repair the device under test in a timely manner without the need for manual troubleshooting, thus improving maintenance efficiency.

[0067] The door 14 is also equipped with a shockproof lock to prevent the door 14 from opening due to external vibrations, thereby preventing dust, moisture and foreign objects from entering the monitoring box 1 and affecting the operation of the devices, thus improving the safety of the power plant equipment monitoring system.

[0068] The circuits inside monitoring box 1 are isolated and protected, for example, by grounding or installing circuit breakers, in order to protect the circuit safety.

[0069] There are 10 monitoring boxes 1, distributed in multiple locations in the power plant. Each monitoring box 1 has 4 acquisition modules 2, and each acquisition module 2 has 4 acquisition units. Each acquisition unit includes one temperature sensor, one vibration sensor, one sound sensor, etc., to detect the status of the device under test.

[0070] All the data collected by the sensors 3 are aggregated and processed by the acquisition module 2 and the data exchange module 5, and then displayed on the monitoring station 4 for the operators to view.

[0071] The power plant equipment monitoring system of this utility model first connects the sensor 3 into the monitoring box 1, and then only one main power line 9 is needed to provide power support for all the acquisition modules 2 and other electronic devices inside the monitoring box 1. At the same time, data interaction between the monitoring box 1 and the monitoring station 4 can be realized through one main communication line 8. This avoids the wiring method of needing to lay separate power lines and communication lines for each sensor 3, thereby reducing the amount of cables used and saving more than 70% of the wiring cost, thereby reducing the construction difficulty and maintenance cost.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A power plant equipment monitoring system, characterized in that, include: Monitoring box (1); At least one acquisition module (2) is installed inside the monitoring box (1); Multiple sensors (3) are installed on the device under test and electrically connected to the acquisition module (2) via a branch communication line (7); The monitoring station (4) is electrically connected to the monitoring box (1) and monitors the operating status of the device under test based on the data detected by the sensor (3); The monitoring box (1) is electrically connected to an external power source via a main power line (9), and the monitoring box (1) is electrically connected to the monitoring station (4) via a main communication line (8).

2. The power plant equipment monitoring system according to claim 1, characterized in that, The monitoring box (1) is equipped with a data exchange module (5). The data exchange module (5) is used to summarize the equipment information collected by the acquisition module (2) and transmit the equipment information to the monitoring station (4) through the main communication line (8).

3. The power plant equipment monitoring system according to claim 2, characterized in that, The monitoring box (1) is equipped with an interface (6). The acquisition module (2) is electrically connected to the monitoring station (4) through the interface (6), and the acquisition module (2) is plugged into and plugged into the interface (6).

4. The power plant equipment monitoring system according to claim 3, characterized in that, The interface (6) is provided in multiple ways, and each interface (6) is electrically connected to the data exchange module (5) through an independent communication line.

5. The power plant equipment monitoring system according to any one of claims 1-4, characterized in that, Each of the acquisition modules (2) includes multiple acquisition units, and each acquisition unit includes multiple sensors (3) connected in series via the branch communication line (7).

6. The power plant equipment monitoring system according to any one of claims 1-4, characterized in that, Multiple monitoring boxes (1) are provided, and all of the multiple monitoring boxes (1) are electrically connected to the monitoring station (4).

7. The power plant equipment monitoring system according to any one of claims 1-4, characterized in that, The length of the branch communication line (7) is ≤50 meters.

8. The power plant equipment monitoring system according to any one of claims 1-4, characterized in that, The sensor (3) is an acoustic sensor (3), a vibration sensor (3), or a temperature sensor (3).

9. The power plant equipment monitoring system according to any one of claims 1-4, characterized in that, The monitoring box (1) includes a door (14), which is rotatably disposed on the monitoring box (1). The monitoring box (1) is provided with: The power supply module (10) is electrically connected to an external power source via the main power line (9); The detection module (11) is used to detect the opening and closing status of the door (14); The protection module (12), which is electrically connected to the power supply module (10) and the detection module (11) respectively, is configured to control the power supply module (10) to shut down when the door (14) is opened.

10. The power plant equipment monitoring system according to any one of claims 1-4, characterized in that, The monitoring box (1) is a dustproof and waterproof monitoring box.

Images