Oil leakage monitoring device of online oil monitoring system of thermal power plant

Abstract

The utility model provides online oil monitoring system oil leakage monitoring devices of thermal power plant belongs to thermal power plant oil monitoring technical field, including detection device, detection device is used for monitoring the oil leakage of thermal power plant, detection device side wall is provided with high accuracy pressure sensor, ultrasonic flowmeter and oil film thickness detection unit, be provided with monitoring assembly in the detection device, and monitoring assembly is used for monitoring the hydraulic system of detection device, monitoring assembly includes magnetic attraction seat, the magnetic attraction seat sets up in detection device, two groups of fixed bandage are installed to the magnetic attraction seat side wall, the fixed bandage surface is provided with magic tape. The utility model discloses through being equipped with monitoring assembly, can monitor the hydraulic system in detection device, can also be self -checking to monitoring assembly itself simultaneously, ensure the normal operation of detection device and monitoring assembly, and then guarantee the real -time online detection to thermal power plant oil.

Description

Technical Field

[0001] This utility model relates to the field of oil monitoring technology in thermal power plants, and in particular to an oil leakage monitoring device for online oil monitoring systems in thermal power plants. Background Technology

[0002] As a crucial facility for traditional energy supply, the operational safety and stability of thermal power plants directly impact the reliable power supply of the power system. In thermal power plants, key equipment such as steam turbines, feedwater pumps, fans, and transformers rely heavily on lubrication, hydraulic, and insulating oil systems for normal operation. However, due to the long-term operation of these equipment under high temperature, high pressure, and high vibration conditions, oil pipelines, seals, and oil storage devices are prone to aging or mechanical damage, significantly increasing the risk of oil leakage. Therefore, an oil monitoring system is needed to monitor oil leakage in thermal power plants in real time.

[0003] Existing oil monitoring methods in thermal power plants rely on manual inspections, periodic visual checks, or infrared thermography, which cannot achieve continuous monitoring. Furthermore, minor leaks or leaks in hidden areas are easily overlooked. Some oil monitoring systems use detection devices, but the hydraulic systems of these devices can also leak. If leaks cannot be detected in time, it will affect the normal operation of the detection devices, thus preventing the detection of oil leaks in thermal power plants and posing safety hazards. Therefore, the hydraulic systems of the detection devices themselves need to be monitored and self-checked. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes an oil leakage monitoring device for an online oil monitoring system in thermal power plants, which more accurately solves the problem that existing thermal power plant detection devices cannot monitor and self-test their own hydraulic systems.

[0005] This utility model is achieved through the following technical solution: This utility model proposes an oil leakage monitoring device for an online oil monitoring system in thermal power plants, including a detection device for monitoring oil leakage in thermal power plants. The detection device is equipped with a high-precision pressure sensor, an ultrasonic flow meter, and an oil film thickness detection unit on its side wall. The detection device is also equipped with a monitoring component for monitoring the hydraulic system of the detection device.

[0006] Furthermore, the monitoring component includes a magnetic base, which is disposed inside the detection device. Two sets of fixing straps are installed on the side wall of the magnetic base, and the surface of the fixing straps is provided with Velcro. A universal ball joint is installed on the top of the magnetic base.

[0007] Furthermore, the monitoring component also includes a mounting bracket, which is installed on the top of the universal joint. A cleaning brush is bolted to the side wall of the mounting bracket, and a first micro motor is bolted to the top of the mounting bracket. A sensor array board is installed at the output end of the first micro motor.

[0008] Furthermore, the mounting bracket has an L-shaped cross-section, and the cleaning brush is attached to the top surface of the sensor array plate.

[0009] Furthermore, the sensor array plate includes multiple sets of liquid sensors, which are evenly distributed on the top of the sensor array plate.

[0010] Furthermore, a connecting rod is bolted to the top of the cleaning brush, and an oil storage tank is installed at the end of the connecting rod. The oil storage tank is located above the liquid sensor, and a discharge pipe is installed through the bottom of the oil storage tank.

[0011] Furthermore, a second micro motor is bolted to the side wall of the discharge pipe, and a seal is installed at the output end of the second micro motor. The seal is rotatably disposed inside the discharge pipe, and a groove is provided on the top of the seal.

[0012] Furthermore, a connecting wire is installed at the top center of the sensor array board. The connecting wire is an RS bus. An edge computing gateway is installed at one end of the connecting wire. The edge computing gateway is equipped with a wireless transmission unit. An early warning module is installed on one side of the edge computing gateway. The early warning module is connected to the wireless transmission unit.

[0013] The beneficial effects of this utility model are: The oil leakage monitoring device of the online oil monitoring system for thermal power plants proposed in this utility model, with the setting of a first micro motor and a cleaning brush, can clean the surface of the sensor array plate, avoiding the influence of self-testing oil or other liquids on the monitoring of the liquid sensor. With the setting of sensor array plate, connecting wires, edge computing gateway, wireless transmission unit and early warning module, the hydraulic system of the detection device can be monitored in real time. The data is aggregated to the edge computing gateway through RS485 bus, which can effectively identify the small leakage. When a leakage occurs, the wireless transmission unit transmits the signal to the early warning module, and the early warning module issues an alarm.

[0014] With the installation of a second micro motor, seals, oil storage tank, and discharge pipe, the monitoring components can perform self-testing to ensure their normal operation, thereby ensuring the normal operation of the detection device. This facilitates the detection of oil in thermal power plants and reduces the workload of staff. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the detection device of this utility model; Figure 3 This is a schematic diagram of the monitoring component structure of this utility model; Figure 4 This is a cross-sectional schematic diagram of the oil storage tank of this utility model; Figure 5 This is a schematic diagram of the edge computing gateway and early warning module of this utility model.

[0016] The attached figures are labeled as follows: In the diagram: 1. Magnetic base; 2. Fixing strap; 3. Universal ball joint; 4. Fixing frame; 5. Cleaning brush; 6. First micro motor; 7. Sensor array board; 8. Connecting rod; 9. Oil storage tank; 10. Discharge pipe; 11. Second micro motor; 12. Seal; 13. Connecting wire; 14. Edge computing gateway; 15. Wireless transmission unit; 16. Early warning module; 17. Detection device. Detailed Implementation

[0017] To more clearly and completely illustrate the technical solution of this utility model, the following description, in conjunction with the accompanying drawings, will provide further details.

[0018] Please refer to Figures 1-5 This utility model proposes an online oil leakage monitoring device for thermal power plants, including a detection device 17. The detection device 17 is used to monitor oil leakage in thermal power plants. The side wall of the detection device 17 is equipped with a high-precision pressure sensor, an ultrasonic flow meter, and an oil film thickness detection unit. The detection device 17 is equipped with a monitoring component for monitoring the hydraulic system of the detection device 17. Users can deploy the detection device 17 at key nodes in thermal power plants, such as turbine bearings, hydraulic actuators, and oil pipelines. With the cooperation of the high-precision pressure sensor, ultrasonic flow meter, and oil film thickness detection unit, key parameters such as oil pressure, flow rate, and oil film thickness can be collected in real time to detect oil leakage in thermal power plants.

[0019] The monitoring component includes a magnetic base 1, which is disposed inside the detection device 17. Two sets of fixing straps 2 are installed on the side wall of the magnetic base 1 for installing and fixing the monitoring component. The surface of the fixing straps 2 is provided with Velcro. A universal ball joint 3 is installed on the top of the magnetic base 1. With the magnetic base 1 and fixing straps 2, the monitoring component can be fixed on the hydraulic system of the detection device 17. With the universal ball joint 3, the angle of the sensor array plate 7 can be easily adjusted.

[0020] The monitoring component also includes a mounting bracket 4 for fixing a cleaning brush 5. The mounting bracket 4 is installed on top of the universal ball joint 3. The cleaning brush 5 is bolted to the side wall of the mounting bracket 4 for cleaning the surfaces of the high-precision pressure sensor, ultrasonic flow meter, and oil film thickness detection unit. A first micro motor 6 is bolted to the top of the mounting bracket 4 for driving the sensor array plate 7 to rotate. The sensor array plate 7 is installed at the output end of the first micro motor 6. The mounting bracket 4 has an L-shaped cross-section. The cleaning brush 5 is attached to the top surface of the sensor array plate 7. The sensor array plate 7 includes multiple sets of liquid sensors, which are evenly distributed on the top of the sensor array plate 7. A connecting wire 13 is installed at the top center of the sensor array plate 7 for connecting the sensor array plate 7 to the edge computing gateway 14. Line 13 is an RS485 bus. One end of the connecting wire 13 is equipped with an edge computing gateway 14. The edge computing gateway 14 is equipped with a wireless transmission unit 15. An early warning module 16 is set on one side of the edge computing gateway 14. The early warning module 16 is connected to the wireless transmission unit 15. When it is necessary to clean the surface of the liquid sensor, the first micro motor 6 drives the sensor array plate 7 to rotate. With the cooperation of the cleaning brush 5, the surface of the liquid sensor can be cleaned to avoid the influence of self-testing oil or other liquids on the monitoring of the liquid sensor. With the liquid sensor set, the leakage of the hydraulic system of the detection device 17 can be monitored. The data is gathered to the edge computing gateway 14 through the RS485 bus, which can effectively identify the small amount of leakage. When a leakage occurs, the wireless transmission unit 15 transmits the signal to the early warning module 16, and the early warning module 16 issues an alarm.

[0021] The cleaning brush 5 has a connecting rod 8 bolted to its top. An oil storage tank 9 is installed at the end of the connecting rod 8 to store oil. The oil storage tank 9 is located above the liquid sensor. A discharge pipe 10 is installed through the bottom of the oil storage tank 9. A second micro motor 11 is bolted to the side wall of the discharge pipe 10 to drive the rotation of the sealing element 12. The output end of the second micro motor 11 is equipped with the sealing element 12 to seal the discharge pipe 10. The sealing element 12 is rotatably disposed inside the discharge pipe 10. The top of the sealing element 12 has a groove. When the monitoring component needs to be self-tested, the second micro motor 11 drives the sealing element 12 to rotate, causing the groove on the top of the sealing element 12 to face the top of the sensor array plate 7. Oil drips onto the sensor array plate 7, allowing observation of whether the edge computing gateway 14 and the early warning module 16 are operating normally. This facilitates the self-testing of the monitoring component, ensures its normal operation, and thus ensures the normal operation of the detection device 17.

[0022] Of course, there may be other implementations of this utility model. Based on this implementation, other implementations obtained by those skilled in the art without any creative effort are all within the scope of protection of this utility model.

Claims

1. An oil leakage monitoring device for an online oil monitoring system in a thermal power plant, characterized in that, The device includes a detection unit for monitoring oil leakage in thermal power plants. The detection unit is equipped with a high-precision pressure sensor, an ultrasonic flow meter, and an oil film thickness detection unit on its side wall. The detection unit also includes a monitoring component for monitoring the hydraulic system of the detection unit.

2. The oil leakage monitoring device for an online oil monitoring system in a thermal power plant according to claim 1, characterized in that, The monitoring component includes a magnetic base, which is installed inside the detection device. Two sets of fixing straps are installed on the side wall of the magnetic base, and the surface of the fixing straps is provided with Velcro. A universal ball joint is installed on the top of the magnetic base.

3. The oil leakage monitoring device for the online oil monitoring system in thermal power plants according to claim 1, characterized in that, The monitoring component also includes a mounting bracket, which is installed on the top of the universal joint. A cleaning brush is bolted to the side wall of the mounting bracket, and a first micro motor is bolted to the top of the mounting bracket. A sensor array board is installed at the output end of the first micro motor.

4. The oil leakage monitoring device for the online oil monitoring system in thermal power plants according to claim 3, characterized in that, The mounting bracket has an L-shaped cross-section, and the cleaning brush is attached to the top surface of the sensor array plate.

5. The oil leakage monitoring device for the online oil monitoring system in thermal power plants according to claim 3, characterized in that, The sensor array board includes multiple sets of liquid sensors, which are evenly distributed on the top of the sensor array board.

6. The oil leakage monitoring device for the online oil monitoring system in thermal power plants according to claim 3, characterized in that, The cleaning brush has a connecting rod bolted to its top, and an oil reservoir is installed at the end of the connecting rod. The oil reservoir is located above the liquid sensor, and a discharge pipe is installed at the bottom of the oil reservoir.

7. The oil leakage monitoring device for an online oil monitoring system in a thermal power plant according to claim 6, characterized in that, A second micro motor is bolted to the side wall of the discharge pipe. A seal is installed at the output end of the second micro motor. The seal is rotatably disposed inside the discharge pipe, and a groove is provided on the top of the seal.

8. The oil leakage monitoring device for the online oil monitoring system in thermal power plants according to claim 3, characterized in that, A connecting wire is installed at the top center of the sensor array board. The connecting wire is an RS485 bus. An edge computing gateway is installed at one end of the connecting wire. The edge computing gateway is equipped with a wireless transmission unit. An early warning module is installed on one side of the edge computing gateway. The early warning module is connected to the wireless transmission unit.

Images