Beach fan foundation operation safety monitoring system

Abstract

The utility model relates to a beach fan foundation operation safety monitoring system. The method is suitable for the technical field of fan foundation quality detection. According to the technical scheme, the system comprises a settlement monitoring mechanism which is provided with a static force level gauge assembly which is used for collecting foundation settlement information of a beach fan in real time; the seepage monitoring mechanism is provided with a seepage detection assembly, and the seepage detection assembly is used for collecting seepage flow information in the foundation in real time; the monitoring platform is provided with an Internet of Things gateway, the static force level gauge assembly and the seepage detection assembly are both in data connection with the Internet of Things gateway, and the monitoring platform is used for receiving the foundation settlement information and the seepage flow information; the control module is in data connection with the Internet of Things gateway and obtains foundation settlement information and seepage flow information, a foundation settlement threshold value and a seepage flow threshold value are preset in the control module, and if the foundation settlement information does not conform to the foundation settlement threshold value or the seepage flow information does not conform to the seepage flow threshold value, the seepage flow information is sent to the Internet of Things gateway. And if so, the control module sends alarm information to a worker.

Description

Technical Field

[0001] The utility model relates to the technical field of wind turbine foundation quality detection, in particular to a beach wind turbine foundation operation safety monitoring system. Background Art

[0002] In coastal areas, the land has a small specific heat, so it warms up quickly during the day and cools down quickly at night. However, the ocean has a large specific heat, so the temperature does not change significantly within a day. Therefore, during the day, the air over the land rises and becomes a low-pressure area, and the colder and heavier air flows from the ocean into the land, forming a sea breeze. At night, the land cools quickly and becomes a high-pressure area, while the ocean air warms up and rises, and the colder and heavier air blows from the land, forming a land breeze. This day and night cycle forms a sea-land breeze. The existence of sea-land breezes has formed a natural large-scale beach wind farm. Therefore, the offshore beaches meet the site selection requirements of wind power projects very well, and a large number of beach wind power projects have been derived in recent years.

[0003] A major feature of wind power projects is that they have a relatively short service life. Currently, the depreciation period of general wind power projects is 20 years, with a depreciation rate of 5%. Due to the influence of the terrain and the sea, the wind turbine equipment of the beach wind farm will be affected by foundation settlement and undercurrent seepage, which will cause the following problems:

[0004] 1. The impact of seepage on the foundation of the beach wind farm has not been controlled. The settlement of the foundation causes the foundation of the wind turbine to also settle and deform. The wind turbine foundation is immersed in the seepage for a long time, which has a very serious impact on the foundation, thereby accelerating the depreciation of the wind turbine equipment. The increase in the depreciation rate will lead to an increase in power generation costs and a decrease in the profit margin of power generation;

[0005] 2. Traditional fan settlement monitoring and seepage monitoring are still in the manual monitoring stage. Therefore, during the construction process and the use of equipment, it is impossible to achieve all-round and full-time monitoring, and it is impossible to detect foundation settlement and deformation problems in time, thus posing a major safety hazard. Utility Model Content

[0006] The technical problem to be solved by the utility model is: in view of the above-mentioned existing problems, a beach wind turbine foundation operation safety monitoring system is provided.

[0007] The technical solution adopted by the utility model is: a beach wind turbine foundation operation safety monitoring system, characterized in that it includes:

[0008] A settlement monitoring mechanism, comprising a static level assembly, which is pre-buried in the foundation of the beach wind turbine and is used to collect foundation settlement information of the beach wind turbine in real time;

[0009] A seepage monitoring mechanism, comprising a seepage detection component, which is arranged in the foundation and located on the seaward side of the foundation of the beach wind turbine, and is used to collect seepage flow information in the foundation in real time;

[0010] The monitoring platform has an Internet of Things gateway, the static level component and the seepage detection component are both data-connected to the Internet of Things gateway, and the monitoring platform is used to receive the foundation settlement information and the seepage flow information, and to perform real-time monitoring of the foundation settlement and undercurrent seepage of the beach wind turbine;

[0011] The control module is connected to the IoT gateway data to obtain the foundation settlement information and the seepage flow information. The control module has preset foundation settlement thresholds and seepage flow thresholds. If the foundation settlement information does not meet the foundation settlement threshold or the seepage flow information does not meet the seepage flow threshold, the control module sends an alarm message to the staff.

[0012] Through the above-mentioned technical means, the static level component in the settlement monitoring mechanism is used to collect the foundation settlement information of the beach wind turbine in real time, the seepage detection component in the seepage monitoring mechanism is used to collect the seepage flow information of the beach wind turbine foundation in real time, and the Internet of Things gateway in the monitoring platform is used to receive the foundation settlement information and seepage flow information and realize real-time monitoring. Compared with manual monitoring, all-round and full-time monitoring is achieved during the construction process and the use of equipment. The monitored foundation settlement information and seepage flow information are compared with the control module. If the comparison result does not match, an alarm message is sent to the staff, which is conducive to timely discovering the abnormal situation of the wind turbine foundation and taking corresponding measures in place, thereby greatly reducing safety hazards and increasing the service life of wind turbine equipment in wind farms, thereby reducing the depreciation rate.

[0013] In some embodiments, the static level assembly comprises a first level, multiple second levels, a liquid storage tank, and a connecting pipe. The first level and the multiple second levels are evenly arranged along the periphery of the foundation. The first level, the multiple second levels and the liquid storage tank are connected via a connecting pipe. The first level and the second level both adopt differential pressure type. The first level and the second level are both connected to the IoT gateway data. The first level serves as a reference point and the second level serves as a measuring point.

[0014] Through the above technical means, the first level and the second level are evenly distributed at various positions of the fan foundation, and the settlement of various parts of the fan foundation can be monitored. The first level is used as a reference point and the second level is used as a measuring point. When the measuring point rises or falls relative to the reference point, it will cause changes in pressure at each point. By measuring the changes in pressure, the rise and fall changes of each measuring point relative to the horizontal reference point can be obtained.

[0015] In some embodiments, the liquid storage tank contains a distilled water and formaldehyde solution.

[0016] Through the above technical means, distilled water and formaldehyde solution have an anti-corrosion effect. Ordinary water cannot meet the requirements of the internal working environment. It may become corrosive after long-term use and corrode the joints and metal components of the pipes during circulation. It will also corrode the pipes and cause them to rupture. Using distilled water and formaldehyde solution to circulate through a connecting pipe to the first level and the second level can reduce the risk of the above situation occurring.

[0017] In some embodiments, the seepage detection component has multiple osmometers, all of which are connected to the IoT gateway data, and the multiple osmometers are arranged laterally toward the sea side and distributed according to different elevation levels. The lateral arrangement length of the multiple osmometers is greater than the lateral dimension of the sea side of the foundation.

[0018] Through the above-mentioned technical means, a pressure-collecting piezometer is adopted. The principle is to use the pressure provided by the controlled fluid to make the pressure of the measured medium equivalent to the pressure of the controlled fluid, so as to indirectly measure the flow rate of underground seepage. Multiple piezometers are distributed according to different elevation levels, and their lateral arrangement length on the seaward side is controlled to be larger than the lateral dimension of the seaward side of the wind turbine foundation, so as to ensure that every seepage formed in the foundation is monitored in place as much as possible.

[0019] In some embodiments, the monitoring platform also has a cloud platform and a monitoring center. The Internet of Things gateway is equipped with a 4G wireless transmission module. The Internet of Things gateway receives the settlement monitoring information and the seepage monitoring information, and packages the above monitoring information and transmits it to the cloud platform. The cloud platform receives the packaged data and transmits it to the monitoring center.

[0020] Through the above-mentioned technical means, the IoT gateway transmits both the settlement monitoring information and the seepage monitoring information to the monitoring center through the cloud platform, thereby achieving remote real-time monitoring effects.

[0021] In some embodiments, the beach wind turbine foundation operation safety monitoring system also includes an alarm, which is communicatively connected to the Internet of Things gateway. The control module compares the received monitoring information with a preset monitoring threshold. When the comparison result does not meet the requirements, the control module sends the alarm information to the alarm and the monitoring center respectively via the Internet of Things gateway.

[0022] Through the above-mentioned technical means, the control module is used to process the received settlement monitoring information and seepage monitoring information, and when the processing result is abnormal, an alarm message is sent through the alarm and the monitoring center. The alarm message sent by the alarm can enable offline staff to promptly carry out corresponding processing on the wind turbine foundation, and the alarm information of the monitoring center can enable online staff to receive the monitoring situation in time and provide feedback to the corresponding offline staff.

[0023] In some embodiments, a power supply mechanism is also included, which has a solar power supply component and a reserve UPS power supply component, and the power supply mechanism is used to provide power for the settlement monitoring mechanism, the seepage monitoring mechanism and the Internet of Things gateway.

[0024] Through the above-mentioned technical means, the power supply mechanism includes a solar power supply component and a reserve UPS power supply component. The solar power supply component is used to convert solar energy into electrical energy for storage when the weather is good, and can also generate electricity simultaneously. The reserve UPS power supply component is used to provide continuous and uninterrupted power supply to multiple monitoring agencies when the weather is bad and the solar power supply component cannot generate electricity, thereby ensuring the normal and continuous operation of the beach wind turbine foundation operation safety monitoring system.

[0025] In some embodiments, the solar power supply component has a pole, a solar power generation panel, a solar controller and a battery. The pole is provided with a solar power generation panel, the solar power generation panel is connected to the battery circuit, and the battery is connected to the solar controller circuit.

[0026] Through the above technical means, the solar panels convert solar energy into electrical energy and store it in batteries. The solar controller is used to control whether the battery supplies power to the system.

[0027] In some embodiments, an industrial control equipment protection cabinet is also provided on the vertical pole, and the Internet of Things gateway and the solar controller are provided in the industrial control equipment protection cabinet.

[0028] In some embodiments, the data connections all use RS485 bus to transmit digital signals.

[0029] The beneficial effects of the utility model are:

[0030] 1. The settlement information of different positions of the wind turbine foundation is collected through the static level component, and the seepage volume in the foundation soil is indirectly measured by measuring the change of pore water pressure using a pressure-collecting piezometer. The IoT gateway can receive foundation settlement information and seepage flow information, and conduct real-time comparison and monitoring of the monitoring information and the preset threshold. In this way, the foundation settlement of the wind turbine equipment and the undercurrent seepage of the foundation near the wind turbine equipment can be monitored in all directions and at all times. Real-time monitoring can timely detect abnormal settlement and abnormal seepage of the foundation of the wind turbine equipment. The alarm information sent can enable the staff to make corresponding treatment in time. Timely treatment can increase the life of the wind turbine equipment and reduce its depreciation rate. The power generation cost is effectively controlled and the power generation profit is effectively guaranteed, and the risk of major safety hazards in wind power equipment is reduced.

[0031] 2. After the IoT gateway receives the settlement monitoring information of the wind turbine equipment foundation and the seepage monitoring information of the foundation, the control module compares the received monitoring information with the preset monitoring threshold. If the comparison result does not meet the requirements, on the one hand, the IoT gateway sends an alarm message to the alarm device, and the alarm device can send an alarm to the offline staff, so that the staff near the wind turbine equipment can promptly check the wind turbine foundation with abnormal monitoring. On the other hand, the IoT gateway sends an alarm message to the monitoring center, and the monitoring center can send an alarm to the online staff. Compared with traditional manual monitoring, it can realize full-time automatic monitoring, and through online and offline two-way alarms, timely notify the staff to carry out corresponding maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the structural composition of the utility model.

[0033] Figure 2 It is an installation distribution diagram of the utility model.

[0034] Figure 3 It is a work flow principle diagram of the utility model.

[0035] Description of reference numerals:

[0036] 1. Static level assembly; 2. Connecting pipe; 3. Liquid storage tank; 4. Osmometer; 5. Internet of Things gateway; 6. Solar power supply assembly; 7. Alarm. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the technical solution of the present utility model is further described below in conjunction with specific embodiments.

[0038] Combination Figure 1 and Figure 2 As shown, this embodiment is a beach wind turbine foundation operation safety monitoring system, including a settlement monitoring mechanism, a seepage monitoring mechanism, a monitoring platform, an alarm 7, a power supply mechanism and a control module. This embodiment takes a large beach wind farm project as an example. One side of the large beach wind farm is close to the sea, and the coastal side will form an underground stream during the rainy season. The wind turbine foundation in the large beach wind farm adopts a circular foundation. The settlement monitoring mechanism has a static level assembly 1, and the static level assembly 1 has a first level, multiple second levels, a liquid storage tank 3 and a connecting pipe 2. The first level and the second level are both differential pressure type. In this embodiment, a first level and three second levels are used. The installation bracket is pre-buried in the wind turbine foundation. The arrangement form is evenly arranged along the periphery of the circular wind turbine foundation. When the first level and the second level are placed in the installation bracket, the control level is buried 30cm below the ground.

[0039] The connecting pipe 2 is cut according to the perimeter of the foundation of the fan foundation, and it only needs to meet the connection requirements. The installation reference elevation of the liquid storage tank 3 is arranged to be slightly higher than the first level and the second level. The first level, the second level and the liquid storage tank 3 are connected through the connecting pipe 2, and the connecting pipe 2 is laid in the order of the pipeline path length between each measuring point. In this embodiment, the material of the connecting pipe 2 is a transparent PU hose, and when laying the pipeline, it is necessary to straighten the connecting pipe 2, and try not to let the pipeline take a bend in the middle, so as to ensure that the pressure can be transmitted quickly. At the same time, the optimal length of the connecting pipe 2 between the levels is calculated to prevent the liquid level pipe from being insufficient when settlement occurs, resulting in looseness at the connection between the liquid level pipe and the liquid storage tank 3, and leakage.

[0040] The first level and the second level collect basic settlement information in real time. The first level is used as a reference point, and the second level is used as a measuring point. When the measuring point rises or falls relative to the reference point, the pressure of each point will change. The pressure changes felt by each level are measured to calculate the rise and fall changes of each measuring point relative to the horizontal reference point, thus obtaining the relative settlement of each measuring point.

[0041] The liquid storage tank 3 contains a distilled water and formaldehyde solution with an antiseptic effect. When adding liquid to the liquid storage tank 3, it should be added slowly and continuously to ensure a high pressure. The liquid level in the system is constantly observed. When the liquid level reaches the mark of the liquid storage tank 3, the filling is stopped. When bubbles appear in the liquid level tube, the exhaust valve of the liquid storage tank 3 can be pressed to discharge the bubbles. After the gas is discharged, the filling work is completed.

[0042] The seepage monitoring mechanism has a seepage detection component, and the seepage detection component has a plurality of osmometers 4 using a pressure collection type. The osmometer 4 is an instrument for seepage measurement and control, which can be used to measure the flow rate, total amount, pressure and other parameters of the fluid to reflect the real-time changes of the underground undercurrent. The principle of the pressure collection type is to use the pressure provided by the controlled fluid to make the pressure of the measured medium equivalent to the pressure of the controlled fluid, thereby indirectly measuring the flow rate of the underground stream. The osmometer 4 is arranged on the coastal side of the fan foundation. The osmometer 4 collects the seepage flow information of the fan foundation in real time. The osmometer 4 is arranged in a double row evenly, with intervals between each layer, and the horizontal length of each layer is greater than the foundation diameter of the fan foundation, so as to ensure that each underground stream of the foundation can be monitored in place.

[0043] The monitoring platform has an Internet of Things gateway 5, a cloud platform and a monitoring center. The first level, multiple second levels, and multiple piezometers 4 are all data-connected to the Internet of Things gateway 5. In this embodiment, the above data connection uses RS485 bus to transmit in the form of digital signals. The Internet of Things gateway 5 is provided with a 4G wireless transmission module. The Internet of Things gateway 5 is communication-connected with the cloud platform. The Internet of Things gateway 5 receives settlement monitoring information and seepage monitoring information, and packages the above monitoring information and transmits it to the cloud platform. The cloud platform receives the packaged data and transmits it to the monitoring center. The monitoring center can also use remote software to perform secondary application analysis on the packaged data to achieve data interconnection and remote real-time monitoring. In this embodiment, the Internet of Things gateway 5 is used to receive monitoring information from each monitoring agency, and store, analyze, communicate, and forward the monitoring information.

[0044] The alarm 7 is connected to the IoT gateway 5 for communication, and the control module obtains the foundation settlement information and seepage flow information of the IoT gateway 5. The control module has preset foundation settlement thresholds and seepage flow thresholds. The control module compares the foundation settlement information with the preset foundation settlement thresholds. At the same time, the control module compares the seepage flow information with the preset seepage flow thresholds. If any comparison result does not meet the requirements, the control module sends an alarm message to the alarm 7 and the cloud platform via the IoT gateway 5. The alarm 7 will send a voice alarm to the staff at the fan foundation, and the cloud platform will transmit the alarm message to the monitoring center and send an alarm to the remote monitoring personnel, so that the staff can arrange for investigation personnel to inspect the fan foundation and subgrade in time. When the investigation personnel go to the site for inspection, they can also quickly locate the abnormal fan position.

[0045] The power supply mechanism has a solar power supply component 6 and a reserve UPS power supply component. The solar power supply component 6 has a pole, a solar power generation panel, a solar controller and a battery. The pole is arranged near the foundation of the wind turbine. A solar power generation panel is arranged on the top of the pole. An alarm 7 is also arranged on the top of the pole. The battery is arranged at the bottom of the pole. The solar power generation panel is connected to the battery circuit, and the battery is connected to the solar controller circuit. The solar controller is used to control whether the battery is supplying power. An industrial control equipment protection cabinet is arranged on the pole, and an Internet of Things gateway 5 and a solar controller are arranged in the industrial control equipment protection cabinet.

[0046] The solar controller is connected to the Internet of Things gateway 5, the settlement monitoring mechanism, and the seepage monitoring mechanism circuit. The solar power supply component 6 is used to convert solar energy into electrical energy storage when the weather is good, and use part of the electrical energy to power the settlement monitoring mechanism, the seepage monitoring mechanism and the Internet of Things gateway 5. The reserve UPS power supply component is used to power various mechanisms in the system when power generation is insufficient at night or on rainy days, so as to ensure that the monitoring system is uninterrupted at all times.

[0047] Combination Figure 3As shown, this embodiment is a method for using a beach wind turbine foundation operation safety monitoring system. Before use, on the one hand, a differential pressure static level assembly 1 is first arranged, a liquid storage tank 3 is installed, and a connecting pipe 2 is used to install liquid flow, thereby completing the arrangement of a settlement monitoring mechanism; on the other hand, the seepage conditions of the ground survey near the wind turbine equipment are first analyzed, and a piezometer 4 is arranged in a targeted manner based on the seepage conditions, and the piezometer 4 is pre-buried and installed, thereby completing the arrangement of the seepage monitoring mechanism.

[0048] The Internet of Things Gateway 5 is connected to the static level and the piezometer 4 by using the RS485 bus, and the solar battery is started to power the monitoring agencies and the Internet of Things Gateway 5. The monitoring information collected by the monitoring agencies is collected in real time through the Internet of Things Gateway 5. The control module obtains the monitoring information of the Internet of Things Gateway 5 and analyzes and processes it. If the analysis result is normal, the Internet of Things Gateway 5 is controlled to forward the monitoring information to the cloud platform, and the cloud platform transmits the monitoring information to the monitoring center for real-time monitoring; if the analysis result is abnormal, the Internet of Things Gateway 5 is controlled to send an alarm message to the alarm 7 and the cloud platform, and the cloud platform transmits the alarm message to the monitoring center for alarm, so as to ensure that both remote monitoring staff and offline staff can receive on-site monitoring data at the same time.

[0049] The settlement monitoring mechanism, seepage monitoring mechanism, monitoring platform and control module are combined to form a complete beach wind turbine foundation operation safety monitoring system. The foundation settlement of the wind turbine equipment is monitored by the settlement monitoring mechanism, and the undercurrent seepage in the foundation near the wind turbine equipment is monitored by the seepage monitoring mechanism. The comprehensive monitoring of foundation settlement and undercurrent seepage can obtain the operation safety of the beach wind turbine foundation. The overall automated monitoring system effectively replaces the traditional manual monitoring, and has targeted monitoring of the risk points of the beach wind turbine foundation, which reduces the operation depreciation rate of the wind farm and increases the service life of the wind farm.

[0050] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A beach wind turbine foundation operation safety monitoring system, characterized in that: include: A settlement monitoring mechanism comprises a static level assembly (1), wherein the static level assembly (1) is pre-buried in the foundation of the beach wind turbine and is used to collect foundation settlement information of the beach wind turbine in real time; A seepage monitoring mechanism, comprising a seepage detection component, which is arranged in the foundation and located on the seaward side of the foundation of the beach wind turbine, and is used to collect seepage flow information in the foundation in real time; The monitoring platform has an Internet of Things gateway (5), the static level component (1) and the seepage detection component are both data-connected to the Internet of Things gateway (5), and the monitoring platform is used to receive the foundation settlement information and the seepage flow information, and to perform real-time monitoring of the foundation settlement and undercurrent seepage of the beach wind turbine; The control module is connected to the data of the Internet of Things gateway (5) to obtain the basic settlement information and the seepage flow information. The control module has a preset basic settlement threshold and a seepage flow threshold. If the basic settlement information does not meet the basic settlement threshold or the seepage flow information does not meet the seepage flow threshold, the control module sends an alarm message to the staff.

2. A beach wind turbine foundation operation safety monitoring system according to claim 1, characterized in that: The static level assembly (1) comprises a first level, a plurality of second levels, a liquid storage tank (3), and a connecting pipe (2). The first level and the plurality of second levels are evenly arranged along the periphery of the foundation. The first level, the plurality of second levels, and the liquid storage tank (3) are connected via the connecting pipe (2). The first level and the second level both adopt differential pressure type. The first level and the second level are both connected to the data of the Internet of Things gateway (5). The first level serves as a reference point, and the second level serves as a measuring point.

3. A beach wind turbine foundation operation safety monitoring system according to claim 2, characterized in that: The liquid storage tank (3) contains a distilled water-formaldehyde solution.

4. A beach wind turbine foundation operation safety monitoring system according to claim 1, characterized in that: The seepage detection component comprises a plurality of osmometers (4), the plurality of osmometers (4) are all data-connected to the Internet of Things gateway (5), the plurality of osmometers (4) are arranged transversely toward the seaward side and are distributed according to different elevation levels, and the transverse arrangement length of the plurality of osmometers (4) is greater than the transverse dimension of the seaward side of the foundation.

5. A beach wind turbine foundation operation safety monitoring system according to claim 1, characterized in that: The monitoring platform also has a cloud platform and a monitoring center. The Internet of Things gateway (5) is provided with a 4G wireless transmission module. The Internet of Things gateway (5) receives the settlement monitoring information and the seepage monitoring information, and packages the above monitoring information and transmits it to the cloud platform. The cloud platform receives the packaged data and transmits it to the monitoring center.

6. A beach wind turbine foundation operation safety monitoring system according to claim 5, characterized in that: The beach wind turbine foundation operation safety monitoring system also includes an alarm (7), which is communicatively connected to the Internet of Things gateway (5). The control module compares the received monitoring information with a preset monitoring threshold value. When the comparison result does not meet the requirement, the control module sends the alarm information to the alarm (7) and the monitoring center respectively via the Internet of Things gateway (5).

7. A beach wind turbine foundation operation safety monitoring system according to claim 1, characterized in that: It also includes a power supply mechanism, which has a solar power supply component (6) and a reserve UPS power supply component, and is used to supply power to the settlement monitoring mechanism, the seepage monitoring mechanism and the Internet of Things gateway (5).

8. A beach wind turbine foundation operation safety monitoring system according to claim 7, characterized in that: The solar power supply component (6) comprises a vertical pole, a solar power generation panel, a solar controller and a storage battery. The vertical pole is provided with a solar power generation panel, the solar power generation panel is connected to the battery circuit, and the storage battery is connected to the solar controller circuit.

9. A beach wind turbine foundation operation safety monitoring system according to claim 8, characterized in that: An industrial control equipment protection cabinet is also provided on the vertical pole, and the Internet of Things switch (5) and the solar energy controller are provided in the industrial control equipment protection cabinet.

10. A beach wind turbine foundation operation safety monitoring system according to claim 1, 2 or 4, characterized in that: The data connections all use RS485 bus to transmit digital signals.

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