Intelligent flood prevention system for water conservancy project

Abstract

The invention discloses an intelligent flood prevention system for a water conservancy project in the technical field of water conservancy flood prevention, and the system comprises a floating detection mechanism and a processor, the floating detection mechanism comprises a supporting rod, and the supporting rod is in sliding fit with a floating block which floats and moves along with the water surface; a plurality of pressure sensors used for detecting water surface pressure data are arranged on the supporting rod, and a first detection mechanism used for measuring water surface fluctuation data is arranged in the floating block; a pressure relief mechanism used for relieving water impact is arranged between every two adjacent floating blocks, and the output end of each pressure relief mechanism is provided with a fixing mechanism used for fixing the corresponding floating block to the corresponding supporting rod. The processor is used for sending an attention early warning instruction and a safety instruction based on the water surface pressure data and the water surface fluctuation data corresponding to the pressure sensors; the rainfall and the water surface rising condition are confirmed based on the water surface pressure data and the water surface fluctuation data, so that stable detection of the monitoring device is guaranteed, and stable guarantee is provided for flood season safety of dams and reservoirs.

Description

Technical Field

[0001] The invention belongs to the technical field of water conservancy and flood prevention, and specifically is an intelligent flood prevention system for water conservancy projects. Background Art

[0002] Water conservancy projects are projects built to control and allocate natural surface water and groundwater to achieve the purpose of eliminating harm and promoting benefits. They mainly include flood control, waterlogging removal, irrigation, power generation, water supply, reclamation, soil and water conservation, immigration, water resource protection and other projects (including new construction, expansion, reconstruction, reinforcement, and repair) and their supporting and ancillary projects.

[0003] The commonly used technology or method for flood control monitoring of existing water conservancy projects is to arrange pressure sensors, displacement sensors, water level sensors and flow rate sensors at key locations such as dams and reservoirs to measure parameters such as water level, flow, flow rate, stress, deformation, etc., to provide real-time data support for flood control warning. However, due to the influence of economic factors, personnel transfer factors and equipment replacement factors, problems such as unreasonable monitoring layout and equipment damage have occurred, resulting in insufficient monitoring of the effectiveness of the safety status of water conservancy projects. Therefore, the present invention provides an intelligent flood control system that can monitor water surface changes in real time and in many aspects, providing stable protection for the safety of dams and reservoirs during the flood season. Summary of the invention

[0004] The purpose of the present invention is to provide an intelligent flood control system for water conservancy projects, which can confirm the rainfall and water level rise to ensure the stable detection of the monitoring device and provide stable protection for the safety of dams and reservoirs during the flood season.

[0005] In order to achieve the above object, the technical solution of the present invention is as follows: An intelligent flood prevention system for water conservancy projects includes a floating detection mechanism and a processor, wherein the floating detection mechanism includes a support rod, and a floating block that moves with the water surface is slidably matched on the support rod; The support rods are provided with a plurality of pressure sensors for detecting water surface pressure data, and the floating block is provided with a first detection mechanism for measuring water surface fluctuation data; A pressure relief mechanism for alleviating water impact is provided between adjacent floating blocks, and a fixing mechanism for fixing the floating blocks on the support rod is provided at the output end of the pressure relief mechanism; The processor is used to record and store the reservoir model, and at the same time record and store the position information of each pressure sensor in the reservoir model, the position information including the water surface height, the regional classification and the associated pressure sensor and the first detection mechanism; the processor marks the water surface pressure data and the water surface fluctuation data corresponding to each pressure sensor into the reservoir model, and at the same time obtains the position information corresponding to the associated pressure sensor; The processor is also used to compare the water surface height corresponding to the pressure sensor with the set limited water surface height. If the water surface height is greater than the limited water surface height, a warning instruction is sent to the outside world. If the water surface height is less than the limited water surface height, the water surface pressure data and water surface fluctuation data corresponding to the pressure sensor are obtained, and a regional verification instruction is generated based on the regional classification; During the current interval, the processor obtains the change value of the corresponding water surface fluctuation data based on the area verification instruction, and compares the change value with the preset first warning value. If the change value is greater than the first warning value, an attention warning instruction is sent to the outside world; if the change value is less than the first warning value, a safety instruction is sent to the outside world.

[0006] The following beneficial effects were achieved by adopting the above scheme: the changing height of the water surface was continuously monitored through the water surface pressure data to generate corresponding warning instructions to remind the staff to ensure the safety of the reservoir; the increase in rainfall affected the settlement of the floating blocks, and the fluctuation of the water surface fluctuation data was used to determine whether the rainfall at the current time had an impact, thereby issuing an early warning to the outside world to improve the safety of the reservoir.

[0007] Further, a movable cavity is provided on the top of the floating block, a first mounting block is slidably fitted in the movable cavity, a first chamber is provided on the first mounting block, the first detection mechanism includes a first fan blade, a first shaft is fixedly connected to the center of the first fan blade, the first shaft is rotatably fitted with the bottom of the floating block, a first magnetic induction coil for generating a first induced current is provided on the first shaft, and the first magnetic induction coil is electrically connected to the processor; The first chamber is funnel-shaped, and the bottom of the first chamber is connected to a drainage pipe. A second chamber is provided between the first mounting block and the floating block. A rack for blocking the drainage pipe is provided on the first mounting block, and the rack is slidably matched with the first mounting block; and a first spring support is provided between the rack and the first mounting block, and the first spring is located in the direction of movement of the rack away from the drainage pipe; The pressure relief mechanism is located between adjacent floating blocks, and includes a second shaft, on which a plurality of second blades are fixedly connected; both ends of the second shaft are respectively rotatably matched with the floating blocks, and a gear rotatably matched with the floating blocks is provided in the second chamber, and the gear is fixedly connected to the second shaft; The fixing mechanism includes a water bag, which is fixedly connected to the floating block, and the water bag is arranged in a ring shape with the support rod as the center. The second chamber is also connected to a liquid pump and a first solenoid valve, and the liquid pump is located between the second chamber and the water bag. The water bag is also connected to a second solenoid valve; and in normal state, the first solenoid valve and the second solenoid valve are in a normally closed state, and the first solenoid valve, the liquid pump and the second solenoid valve are electrically connected to the processor; The rack is located above the gear, and when the first mounting block moves to the lowest point, the rack is meshed with the gear.

[0008] Beneficial effect: The water flow accumulated in the first chamber causes the first mounting block to move downward so that the rack and the gear mesh, and the rainwater from the outside enters the second chamber, so as to drive the floating block to move downward as a whole; at the same time, by opening and controlling the first solenoid valve, the liquid pump and the second solenoid valve, the rainwater in the second chamber enters the water bag to clamp and fix the support rod, so that the floating block is fixed on the support rod, so as to protect the floating block from damage caused by the movement of the water flow; When the pressure relief mechanism rotates, the dispersed water flow directly impacts the reservoir to protect the reservoir; and when the floating block sinks into the water to reduce the impact force of the water flow on the first fan blade, the pressure relief mechanism rotates to determine the rainfall of external rainwater.

[0009] Furthermore, two ends of the second shaft are fixedly connected with a second magnetic induction coil for generating a second induced current, and the second magnetic induction coil is electrically connected to the processor; The processor is also used to store water surface fluctuation data corresponding to the first blade or the second blade at different blade rotation speeds; the processor obtains the corresponding blade rotation speed based on the first induced current and the second induced current, and then obtains the corresponding water surface fluctuation data based on the blade rotation speed.

[0010] Beneficial effect: When the impact force of the water body on the surface of the reservoir drives the first blade and the second blade to rotate, the pre-recorded water surface fluctuation data is obtained through the rotation speed, thereby providing a reference for subsequent data comparison.

[0011] Furthermore, a plurality of indicator lights are provided on the top of the floating block, and the indicator lights are electrically connected to the processor.

[0012] Beneficial effect: The indicator light marks the floating blocks, so that the water surface conditions can be confirmed at night, thus providing protection for the safety of the reservoir.

[0013] Furthermore, a plurality of friction lines are arranged on the surface of the water bag.

[0014] Beneficial effect: The friction force on the support rod is increased by the friction pattern to keep the floating block fixed and reduce the interference of water flow on the floating detection mechanism.

[0015] Furthermore, the processor is also used to send a start instruction to the first solenoid valve based on the area verification instruction; within the current interval, when the change value is greater than the first warning value, the processor simultaneously sends a start instruction to the liquid pump and sends a floating verification instruction to the processor, the processor obtains the second induced current corresponding to the second magnetic induction coil based on the floating verification instruction, the processor uses the second induced current at the current time as a baseline to generate a reference value, and then compares the second induced current after the current time with the reference value, if the second induced current is greater than the reference value, the processor sends a closing instruction to the first solenoid valve, the processor sends a start instruction to the second solenoid valve, if the second induced current is less than the reference value, the processor sends a maintenance instruction to the first solenoid valve.

[0016] Beneficial effects: by opening the first solenoid valve, the discharge of air in the second chamber is accelerated, providing conditions for the entry of water into the first chamber; when the induced current generated by the first magnetic induction coil corresponding to the first fan blade decreases, the liquid pump is pumped in to increase the squeezing and clamping of the water bag on the support rod, so as to achieve the fixation of the floating detection mechanism.

[0017] Furthermore, a water injection channel is opened at the center of the support rod, and one side of the water injection channel is connected to a plurality of evenly arranged drainage holes.

[0018] Beneficial effect: The setting of the water injection channel provides space for subsequent water quality sampling and flushing.

[0019] Furthermore, a slide groove is provided on the support rod, a slider is sleeved on the support rod, the slider is slidably matched with the slide groove, and a pull rope is provided in the support rod, which is fixedly connected to the center of the slider.

[0020] Beneficial effect: By pulling the slider to move through the pull rope, the slider can be pulled to clean the impurities that may be attached to the surface of the support rod to facilitate the subsequent pushing of the floating block to move, and the floating block can also be pushed to be recovered to facilitate the maintenance and inspection of the floating device.

[0021] Furthermore, a water pressure detection sensor is also provided in the second chamber, and the water pressure detection sensor is used to measure real-time water pressure data in the second chamber and send the real-time water pressure data to the processor; The processor is also used to, when the change value is greater than the first warning value, use the real-time water pressure data of the processor at the current time as the first comparison value, and compare the real-time water pressure data after the current time with the first comparison value. If the real-time water pressure data after the current time is less than the first comparison value, a counting instruction is sent to the processor. If the real-time water pressure data after the current time is greater than or equal to the first comparison value, a time recording instruction is sent to the processor. The processor compares the timing time corresponding to the time recording instruction with the standard value. If the timing time is greater than the standard value, the processor sends a closing instruction to the first solenoid valve, and the processor sends a start instruction to the second solenoid valve; if the timing time is less than the standard value, the processor sends a maintenance instruction to the first solenoid valve.

[0022] Beneficial effect: By determining the change in water pressure in the second chamber, it is verified whether the floating block is under the water surface. When the floating block is under the water surface for a long time, the second solenoid valve is started to make the floating block confirm the water surface situation to ensure the accurate acquisition of real-time water surface data.

[0023] Furthermore, the processor is also used to obtain the corresponding number of changes based on the counting instruction, and compare the number of changes with the set rated number within the set comparison time. If the number of changes is greater than the rated number, a real-time monitoring instruction is sent to the processor, and the processor sends a start instruction to the first solenoid valve and the second solenoid valve based on the real-time monitoring instruction. If the number of changes is less than the rated number, a maintenance instruction is sent to the processor to maintain the original program.

[0024] Beneficial effect: By comparing the number of changes with the rated number of times, the water level rise at the current comparison time can be determined. When the number of changes is greater than the rated number of times, it indicates that the floating blocks are sinking repeatedly, and the rainfall and water level rise are fast, so as to cancel the restrictions on the floating blocks and facilitate real-time monitoring of water level changes to ensure the safety of the reservoir. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is an axonometric diagram of an intelligent flood control system for a water conservancy project according to an embodiment of the present invention.

[0026] Figure 2 It is a top view of the intelligent flood control system for water conservancy projects according to an embodiment of the present invention.

[0027] Figure 3 for Figure 1 Cross-sectional view of a floating block.

[0028] Among them, the figure marks in the drawings of the specification include: reservoir 1, water injection channel 11, chute 12, slider 13, support rod 2, floating block 3, first mounting block 31, first fan blade 32, second shaft 4, second fan blade 41, second magnetic induction coil 42, gear 43, indicator light 5, active cavity 6, first chamber 61, drain pipe 62, second chamber 63, sliding channel 64, rack 7, first spring 71, liquid pump 72, first solenoid valve 73, water bag 8, second solenoid valve 81. DETAILED DESCRIPTION

[0029] The following is further described in detail through specific implementation methods: Example 1

[0030] The embodiment is basically as shown in the attached Figures 1 to 3 As shown, an intelligent flood control system for water conservancy projects includes a floating detection mechanism and a processor (not shown in the figure). The floating detection mechanism includes a support rod 2 welded to a reservoir 1, and a floating block 3 that moves with the water surface is slidably matched on the support rod 2; a plurality of pressure sensors for detecting water surface pressure data are arranged on the support rod 2, and a first detection mechanism for measuring water surface fluctuation data is arranged in the floating block 3. A plurality of indicator lights 5 are arranged on the top of the floating block 3, and the indicator lights 5 are electrically connected to the processor.

[0031] A movable cavity 6 is provided at the top of the floating block 3, and a first mounting block 31 is slidably fitted in the movable cavity 6. A first chamber 61 is provided on the first mounting block 31, and a first detection mechanism includes a first fan blade 32, and a first shaft is welded at the center of the first fan blade 32, and the first shaft is rotatably fitted with the bottom of the floating block 3, and a first magnetic induction coil for generating a first induced current is provided on the first shaft, and the first magnetic induction coil is electrically connected to the processor; the first chamber 61 is funnel-shaped, and a drainage pipe 62 is connected to the bottom of the first chamber 61, a second chamber 63 is provided between the first mounting block 31 and the floating block 3, a rack 7 for blocking the drainage pipe 62 is provided on the first mounting block 31, and the rack 7 is slidably fitted with the first mounting block 31; and a first spring 71 is provided between the rack 7 and the first mounting block 31 for support, and the first spring 71 is located in the movement direction of the rack 7 away from the drainage pipe 62.

[0032] A pressure relief mechanism for mitigating water impact is provided between adjacent floating blocks 3, and a fixing mechanism for fixing the floating block 3 on the support rod 2 is provided at the output end of the pressure relief mechanism; the pressure relief mechanism includes a second shaft 4, on which a plurality of second blades 41 are welded; both ends of the second shaft 4 are respectively rotatably matched with the floating block 3, and a gear 43 rotatably matched with the floating block 3 is provided in the second chamber 63, and the gear 43 is coaxially engaged with the second shaft 4; the fixing mechanism includes a water bag 8, which is bonded to the floating block 3, and the water bag 8 is centered on the support rod 2. The water bag 8 is arranged in a ring shape, and a plurality of friction grooves are provided on the surface of the water bag 8; the second chamber 63 is also connected to a liquid pump 72 and a first solenoid valve 73, and the liquid pump 72 is located between the second chamber 63 and the water bag 8, and the water bag 8 is also connected to a second solenoid valve 81; and in normal state, the first solenoid valve 73 and the second solenoid valve 81 are in a normally closed state, and the first solenoid valve 73, the liquid pump 72 and the second solenoid valve 81 are electrically connected to the processor; and the rack 7 is located above the gear 43, and when the first mounting block 31 moves to the lowest point, the rack 7 is meshed with the gear 43.

[0033] In addition, second magnetic induction coils 42 for generating a second induced current are provided at both ends of the second shaft 4, and the second magnetic induction coils 42 are electrically connected to the processor; the processor is used to store the water surface fluctuation data corresponding to the first fan blade 32 or the second fan blade 41 at different blade rotation speeds; the processor obtains the corresponding blade rotation speed based on the first induced current and the second induced current, and then obtains the corresponding water surface fluctuation data based on the blade rotation speed.

[0034] For example, when the impact force of the water body on the surface of the reservoir 1 drives the first blade 32 and the second blade 41 to rotate, the pre-recorded water surface fluctuation data is obtained through the rotation speed, thereby providing a reference for subsequent data comparison.

[0035] The processor is used to enter and store the reservoir 1 model, and at the same time record and store the position information of each pressure sensor in the reservoir 1 model, the position information including the water surface height, regional classification and associated pressure sensors and the first detection mechanism; the processor marks the water surface pressure data and water surface fluctuation data corresponding to each pressure sensor into the reservoir 1 model, and at the same time obtains the position information corresponding to the pressure sensor.

[0036] The processor is also used to compare the water surface height corresponding to the pressure sensor with the set limited water surface height. If the water surface height is greater than the limited water surface height, a warning instruction is sent to the outside world. If the water surface height is less than the limited water surface height, the water surface pressure data and water surface fluctuation data corresponding to the pressure sensor are obtained, and an area verification instruction is generated based on the area classification.

[0037] The processor is also used to send a start instruction to the first solenoid valve 73 based on the area verification instruction; during the current interval, when the change value is greater than the first warning value, the processor simultaneously sends a start instruction to the liquid pump 72 and sends a floating verification instruction to the processor. The processor obtains the second induced current corresponding to the second magnetic induction coil 42 based on the floating verification instruction. The processor uses the second induced current at the current time as a baseline to generate a reference value, and then compares the second induced current after the current time with the reference value. If the second induced current is greater than the reference value, the processor sends a closing instruction to the first solenoid valve 73, and the processor sends a start instruction to the second solenoid valve 81. If the second induced current is less than the reference value, the processor sends a maintenance instruction to the first solenoid valve 73.

[0038] During the current interval, the processor obtains the change value of the corresponding water surface fluctuation data based on the area verification instruction, and compares the change value with the preset first warning value. If the change value is greater than the first warning value, an attention warning instruction is sent to the outside world; if the change value is less than the first warning value, a safety instruction is sent to the outside world.

[0039] The specific implementation process is as follows: when the pressure relief mechanism is pushed by the water body to rotate, the dispersed water flow directly impacts the reservoir 1 to achieve the effect of protecting the reservoir 1; and when the floating block 3 sinks into the water to reduce the impact force of the water flow on the first blade 32 to rotate, the rainfall of external rainwater is determined. The squeezing force of the floating block 3 on the support rod 2 is used to continuously monitor the change in the water surface height through the water surface pressure data, so as to generate corresponding warning instructions to remind the staff to ensure the safety of the reservoir 1.

[0040] When external rainwater continues to accumulate in the first chamber 61, the rack 7 is closed so that rainwater accumulates in the first chamber 61, increasing the pressure inside the second chamber 63, thereby increasing the water demand of the first chamber 61 and causing the floating block 3 to sink. When the change value is greater than the first warning value, it indicates that the floating block 3 sinks into the water, and the first solenoid valve 73 is opened to accelerate the discharge of air in the second chamber 63, providing conditions for the entry of water into the first chamber 61. When the first mounting block 31 moves downward, the rack 7 is meshed with the gear 43, allowing external rainwater to enter the second chamber 63, further driving the floating block 3 to move downward as a whole.

[0041] During the continuous sinking process, when the induced current generated by the first magnetic induction coil corresponding to the first fan blade 32 decreases, the liquid pump 72 is pumped in to increase the squeezing and clamping of the water bag 8 on the support rod 2, so as to fix the floating detection mechanism, protect the floating block 3 from damage caused by the movement of the water flow, ensure the stable detection of the monitoring device, and provide stable protection for the safety of the dam and reservoir 1 during the flood season.

[0042] Example 2

[0043] The difference from the above embodiment is that a water injection channel 11 is opened at the center of the support rod 2, and one side of the water injection channel 11 is connected to a plurality of evenly arranged drainage holes. In another embodiment, a slide groove 12 is opened on the support rod 2, and a slider 13 is sleeved on the support rod 2. The slider 13 slides with the slide groove 12, and a pull rope is provided inside the support rod 2, and the pull rope is fixedly connected to the center of the slider 13. The specific implementation process is as follows: the slider 13 is pulled by a pull rope to move, which can not only pull the slider 13 to clean the impurities that may be attached to the surface of the support rod 2, so as to facilitate the subsequent pushing of the floating block 3 to move, but also the setting of the water injection channel 11 provides space for subsequent water quality sampling and flushing; it can also push the floating block 3 to be recovered, so as to realize the maintenance and inspection of the floating device.

[0044] Example 3

[0045] The difference from the above embodiment is that a water pressure detection sensor (not shown in the figure) is further provided in the second chamber 63, and the water pressure detection sensor is used to measure the real-time water pressure data in the second chamber 63 and send the real-time water pressure data to the processor; The processor is also used to, when the change value is greater than the first warning value, use the real-time water pressure data of the processor at the current time as the first comparison value, and compare the real-time water pressure data after the current time with the first comparison value. If the real-time water pressure data after the current time is less than the first comparison value, a counting instruction is sent to the processor. If the real-time water pressure data after the current time is greater than or equal to the first comparison value, a time recording instruction is sent to the processor. The processor compares the timing time corresponding to the time recording instruction with the standard value. If the timing time is greater than the standard value, a closing instruction is sent to the processor to the first solenoid valve 73, and the processor sends a start instruction to the second solenoid valve 81; if the timing time is less than the standard value, the processor sends a maintenance instruction to the first solenoid valve 73.

[0046] The processor is also used to obtain the corresponding number of changes based on the counting instruction, and compare the number of changes with the set rated number within the set comparison time. If the number of changes is greater than the rated number, the real-time monitoring instruction is sent to the processor. The processor sends a start instruction to the first solenoid valve 73 and the second solenoid valve 81 based on the real-time monitoring instruction. If the number of changes is less than the rated number, a maintenance instruction is sent to the processor to maintain the original program. For example, when the floating block 3 is on the water surface, the water flow in the second chamber 63 will continue to flow out and cannot maintain the water pressure. By determining the change in the water pressure in the second chamber 63, it is verified whether the floating block 3 is under the water surface. When the floating block 3 is under the water surface for a long time, the second solenoid valve 81 is started to make the floating block 3 confirm the water surface situation to ensure the accurate acquisition of real-time water surface data and provide protection for the safety of the reservoir 1. At the same time, the change times are compared with the rated times to determine the water surface rise at the current comparison time. When the change times are greater than the rated times, it indicates that the floating block 3 sinks repeatedly, and the rainfall and water surface rise speed are fast, so as to cancel the limitation on the floating block 3, facilitate real-time monitoring of water surface changes, and ensure the safety of the reservoir 1.

[0047] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and / or characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. An intelligent flood control system for water conservancy projects, characterized in that: It includes a floating detection mechanism and a processor. The floating detection mechanism includes a support rod. A floating block that moves with the water surface and is slidably matched on the support rod; The support rods are provided with a plurality of pressure sensors for detecting water surface pressure data, and the floating block is provided with a first detection mechanism for measuring water surface fluctuation data; A pressure relief mechanism for alleviating water impact is provided between adjacent floating blocks, and a fixing mechanism for fixing the floating blocks on the support rod is provided at the output end of the pressure relief mechanism; The processor is used to record and store the reservoir model, and at the same time record and store the position information of each pressure sensor in the reservoir model, the position information including the water surface height, the regional classification and the associated pressure sensor and the first detection mechanism; the processor marks the water surface pressure data and the water surface fluctuation data corresponding to each pressure sensor into the reservoir model, and at the same time obtains the position information corresponding to the associated pressure sensor; The processor is also used to compare the water surface height corresponding to the pressure sensor with the set limited water surface height. If the water surface height is greater than the limited water surface height, a warning instruction is sent to the outside world. If the water surface height is less than the limited water surface height, the water surface pressure data and water surface fluctuation data corresponding to the pressure sensor are obtained, and a regional verification instruction is generated based on the regional classification; During the current interval, the processor obtains the change value of the corresponding water surface fluctuation data based on the area verification instruction, and compares the change value with the preset first warning value. If the change value is greater than the first warning value, an attention warning instruction is sent to the outside world; if the change value is less than the first warning value, a safety instruction is sent to the outside world.

2. The intelligent flood control system for water conservancy projects according to claim 1 is characterized in that: A movable cavity is provided on the top of the floating block, a first mounting block is slidably matched in the movable cavity, a first chamber is provided on the first mounting block, a first detection mechanism includes a first fan blade, a first shaft is fixedly connected to the center of the first fan blade, the first shaft is rotatably matched with the bottom of the floating block, a first magnetic induction coil for generating a first induced current is provided on the first shaft, and the first magnetic induction coil is electrically connected to the processor; The first chamber is funnel-shaped, and the bottom of the first chamber is connected to a drainage pipe. A second chamber is provided between the first mounting block and the floating block. A rack for blocking the drainage pipe is provided on the first mounting block, and the rack is slidably matched with the first mounting block; and a first spring support is provided between the rack and the first mounting block, and the first spring is located in the direction of movement of the rack away from the drainage pipe; The pressure relief mechanism is located between adjacent floating blocks, and includes a second shaft, on which a plurality of second blades are fixedly connected; both ends of the second shaft are respectively rotatably matched with the floating blocks, and a gear rotatably matched with the floating blocks is provided in the second chamber, and the gear is fixedly connected to the second shaft; The fixing mechanism includes a water bag, which is fixedly connected to the floating block, and the water bag is arranged in a ring shape with the support rod as the center. The second chamber is also connected to a liquid pump and a first solenoid valve, and the liquid pump is located between the second chamber and the water bag. The water bag is also connected to a second solenoid valve; and in normal state, the first solenoid valve and the second solenoid valve are in a normally closed state, and the first solenoid valve, the liquid pump and the second solenoid valve are electrically connected to the processor; The rack is located above the gear, and when the first mounting block moves to the lowest point, the rack is meshed with the gear.

3. The intelligent flood control system for water conservancy projects according to claim 2 is characterized in that: Two ends of the second shaft are fixedly connected with a second magnetic induction coil for generating a second induced current, and the second magnetic induction coil is electrically connected to the processor; The processor is also used to store water surface fluctuation data corresponding to the first blade or the second blade at different blade rotation speeds; the processor obtains the corresponding blade rotation speed based on the first induced current and the second induced current, and then obtains the corresponding water surface fluctuation data based on the blade rotation speed.

4. The intelligent flood control system for water conservancy projects according to claim 3 is characterized in that: A plurality of indicator lights are arranged on the top of the floating block, and the indicator lights are electrically connected to the processor.

5. The intelligent flood control system for water conservancy projects according to claim 4 is characterized in that: A plurality of friction lines are arranged on the surface of the water bag.

6. The intelligent flood control system for water conservancy projects according to claim 5 is characterized in that: The processor is also used to send a start instruction to the first solenoid valve based on the area verification instruction; during the current interval, when the change value is greater than the first warning value, the processor simultaneously sends a start instruction to the liquid pump and a float verification instruction to the processor, the processor obtains the second induced current corresponding to the second magnetic induction coil based on the float verification instruction, the processor uses the second induced current at the current time as a baseline to generate a reference value, and then compares the second induced current after the current time with the reference value, if the second induced current is greater than the reference value, the processor sends a closing instruction to the first solenoid valve, the processor sends a start instruction to the second solenoid valve, if the second induced current is less than the reference value, the processor sends a maintenance instruction to the first solenoid valve.

7. The intelligent flood control system for water conservancy projects according to claim 6 is characterized in that: A water injection channel is opened at the center of the support rod, and one side of the water injection channel is connected with a plurality of evenly arranged drainage holes.

8. The intelligent flood control system for water conservancy projects according to claim 7 is characterized in that: A slide groove is provided on the support rod, a slider is sleeved on the support rod, the slider is slidably matched with the slide groove, and a pull rope is provided inside the support rod, and the pull rope is fixedly connected to the center of the slider.

9. The intelligent flood control system for water conservancy projects according to claim 8 is characterized in that: A water pressure detection sensor is also provided in the second chamber, and the water pressure detection sensor is used to measure the real-time water pressure data in the second chamber and send the real-time water pressure data to the processor; The processor is also used to, when the change value is greater than the first warning value, use the real-time water pressure data of the processor at the current time as the first comparison value, and compare the real-time water pressure data after the current time with the first comparison value. If the real-time water pressure data after the current time is less than the first comparison value, a counting instruction is sent to the processor. If the real-time water pressure data after the current time is greater than or equal to the first comparison value, a time recording instruction is sent to the processor. The processor compares the timing time corresponding to the time recording instruction with the standard value. If the timing time is greater than the standard value, the processor sends a closing instruction to the first solenoid valve, and the processor sends a start instruction to the second solenoid valve; if the timing time is less than the standard value, the processor sends a maintenance instruction to the first solenoid valve.

10. The intelligent flood control system for water conservancy projects according to claim 9 is characterized in that: The processor is also used to obtain the corresponding number of changes based on the counting instruction, and compare the number of changes with the set rated number within the set comparison time. If the number of changes is greater than the rated number, a real-time monitoring instruction is sent to the processor, and the processor sends a start instruction to the first solenoid valve and the second solenoid valve based on the real-time monitoring instruction. If the number of changes is less than the rated number, a maintenance instruction is sent to the processor to maintain the original program.

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