Rotating bucket type dam seepage flow meter and control method thereof

Abstract

The present invention provides a rotary barrel type dam seepage flowmeter and a control method thereof, wherein the flowmeter comprises an instrument support component, a container connected to the instrument support component, and an actuator; the instrument support component comprises a support shaft; a liquid level meter is fixedly mounted on the support shaft, and a sealer and a self-cleaning device are fixedly arranged at the lower part of the support shaft; the container is rotatably connected to the support shaft through a bearing, an opening for introducing water is provided on the upper cover of the container, and a drain port and a drain pipe are arranged on the bottom plate of the container; the actuator drives the container to rotate around the support shaft, and the drain port and the drain pipe rotate together with the container, so that the container is switched to a reset position or a measuring position, and the flow value is obtained by connecting to the liquid level meter for calculation. The instrument of the present invention can not only be applied to conventional dam seepage monitoring conditions, but also can be used in some highly restricted working conditions or working conditions containing more silt and impurities, which greatly expands the application space.

Description

Technical Field

[0001] The invention belongs to the technical field of hydraulic measurement, and in particular relates to a rotary bucket type dam seepage flow meter and a control method thereof. Background Art

[0002] Seepage monitoring is an important project for dam safety monitoring. Dam seepage directly reflects the safety status of the dam structure. When the seepage reaches a certain amount, it directly affects the safety of the dam. Therefore, dam seepage is one of the important physical quantities for monitoring the safe operation of dams and their hydraulic structures. At present, the automatic measurement of seepage with a large flow rate of 1 to 300L / s is mainly achieved indirectly by the water-measuring weir method. The water-measuring weir method is to let the fluid to be measured flow through a weir plate of a certain shape (such as a triangular weir, a rectangular weir, etc.), measure the height of the head of the fluid on the weir plate, and calculate the flow rate of the fluid to be measured by combining different empirical formulas corresponding to different shapes. This flowmeter has a fatal flaw, that is, when the flow rate is very small or the weir plate changes shape due to dirt accumulation, the fitting formula will be seriously inconsistent with the on-site situation, and the calculated flow rate will be very inaccurate or even wrong.

[0003] At present, the flow rate less than 1L / s is mainly monitored manually, which has high labor intensity, low work efficiency and poor real-time performance. Some automatic measuring instruments have also been put into use. The invention patent "High-precision flowmeter for dam seepage" (CN101339066 B) discloses a high-precision flowmeter for dam seepage, the new patent "Dam seepage meter" (CN203672428) discloses a dam seepage meter, and the invention patent "A high-precision automatic measurement method for small flow seepage" (CN 111811596), discloses a high-precision automatic measurement method for small-flow seepage. However, due to the presence of calcification and powdery impurities in the fluid seeping out of the dam body and the building, the impurities are so fine that the filter cannot filter them out. After a long period of flow, the small-flow seepage will accumulate a large amount of impurities and scale substances produced by calcification. Since these instruments all use valves to drain water or control the direction of water flow, when there is sediment in the water flow, the valve will be stuck or unable to be completely closed due to the sediment mixed in the water flow, resulting in abnormal measurement problems and poor reliability. In addition, the existing automatic seepage measurement instruments do not have self-cleaning devices. After long-term use of the instrument, especially under conditions of many impurities and sediment, it is often necessary to manually disassemble the instrument and perform internal cleaning, which requires a large maintenance workload and high cost.

[0004] In addition, the existing volumetric seepage automatic measuring instrument occupies a certain height space due to its active water inlet pipe. In the actual working conditions of the dam project, the height space of the small seepage monitoring water inlet is often limited, making it impossible to install the instrument. Summary of the invention

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a rotary bucket dam seepage meter and a control method thereof, so as to overcome the defect of using valves for small seepage measurement in the prior art, enable small seepage monitoring, and provide higher measurement reliability.

[0006] To achieve the above object, the present invention is implemented by adopting the following technical solutions:

[0007] In a first aspect, the present invention provides a rotary bucket type dam seepage meter, comprising an instrument support component, a container connected to the instrument support component, and an actuator;

[0008] The instrument support component includes a support base plate, a support shaft installed on the support base plate, a plurality of support rods installed on the support base plate, a support plate installed at the lower part of the support rods, and an upper support plate installed at the top of the plurality of support rods; a guide pipe for guiding water into the container is provided on the upper support plate; a liquid level gauge is fixedly installed on the support shaft, and a sealer is fixedly connected to the bottom of the container below the liquid level gauge;

[0009] The container is installed between the support plate and the upper support plate, and is rotatably connected to the support shaft through a bearing. The upper cover of the container is provided with an opening for introducing water, and the bottom plate of the container is provided with a drain port and a drain pipe;

[0010] The actuator is used to drive the container to rotate around the support shaft, drive the drain port and the drain pipe to rotate, switch the container to the reset position or the measuring position, and calculate and obtain the flow value by connecting with the liquid level meter;

[0011] When the container is in the reset position, the drain pipe is directly below the drainage pipe, and the drain port is in an open state;

[0012] When the container is in the measuring position, the drain pipe is away from directly below the drainage pipe, and the drain port is sealed by the sealer.

[0013] Further, the actuator is mounted on the upper support plate, and includes a measurement and control circuit and a motor, a position feedback device, a position sensor, and a position indicator all connected to the measurement and control circuit;

[0014] The output shaft of the motor is fixedly connected to the top of the container and is used to drive the container to rotate;

[0015] The position feedback device is used to feed back the position status of the container to the position sensor;

[0016] The position sensor is used to feed back the container position signal to the measurement and control circuit;

[0017] The position indicator is used to synchronously indicate the position status of the container;

[0018] The measurement and control circuit communicates with the remote device through the set communication interface to obtain measurement instructions and transmit data. The measurement and control circuit controls the motor according to the measurement instructions and the container position signal, and calculates the flow value according to the signal of the liquid level meter and the preset flow calibration parameters.

[0019] Furthermore, the method in which the measurement and control circuit controls the motor according to the measurement instruction and the container position signal, and calculates the flow value according to the signal of the liquid level meter and the preset flow calibration parameter includes the following steps:

[0020] The measurement and control circuit controls the motor to drive the container to the reset position to drain the liquid in the container;

[0021] The measurement and control circuit controls the motor to drive the container to the measurement position to start measurement;

[0022] At the measuring position, as the liquid level in the container continues to rise, when the liquid level reaches the measurement zero point, the liquid level switch outputs a liquid level zero point signal to the measurement and control circuit, and the measurement and control circuit starts timing; the liquid level continues to rise, when the liquid level reaches the measurement full scale, the liquid level switch outputs a liquid level reaching the full scale point signal to the measurement and control circuit, and the measurement and control circuit stops timing; the measurement and control circuit calculates and saves the flow value based on the timing duration and the preset flow calibration parameters.

[0023] Furthermore, the liquid level gauge is a float type liquid level gauge, including a guide rod and a liquid level switch installed on a support shaft through a connecting rod; the liquid level switch is connected to the measurement and control circuit; the liquid level switch includes a float and a position switch, the float is sleeved on the guide rod, and the position switch is pre-buried in a preset position in the guide rod.

[0024] Furthermore, a self-cleaning device is fixedly connected to the bottom of the container closely below the liquid level meter; when the measurement and control circuit obtains a self-cleaning instruction or every preset time, the measurement and control circuit controls the motor to drive the container to rotate back and forth around the support axis to clean the inside of the container.

[0025] Furthermore, the self-cleaning device is a cleaning brush and / or an ultrasonic cleaning device.

[0026] Furthermore, the outer cover of the liquid level meter is provided with a wave breaker, and an opening is left at the upper end of the wave breaker.

[0027] Furthermore, the sealer is a silicone rubber sealer.

[0028] In a second aspect, the present invention provides a control method for a rotary bucket dam flowmeter, based on the rotary bucket dam flowmeter described in the first aspect, comprising the following steps:

[0029] The container is driven to rotate in the reverse direction, and when the receiving container reaches the reset position state information, the container is stopped;

[0030] The container is driven to rotate in the forward direction, and when the receiving container reaches the measuring position state information, the container is stopped;

[0031] When receiving the liquid level zero point signal output by the liquid level meter, the timing starts; when receiving the liquid level reaching the full point signal output by the liquid level meter, the timing stops; according to the timing duration and the preset flow calibration parameters, the flow value is calculated and saved.

[0032] Furthermore, the rotary barrel dam flowmeter also includes a self-cleaning device fixedly connected to the bottom of the container, and the method also includes a flowmeter self-cleaning method, which includes the following steps:

[0033] Step A: when a self-cleaning instruction is obtained or after a preset time, the container is driven to rotate in the opposite direction, and when the receiving container reaches the reset position state information, the driving motor is stopped, and the control position indicator is controlled to synchronously indicate the reset position;

[0034] Step B: driving the container to rotate forward to the cleaning end position, and then driving the container to rotate reversely to the reset position;

[0035] Step C: According to the pre-input setting parameters, the actuator is controlled automatically and step B is repeated until the set cleaning times are completed.

[0036] Compared with the prior art, the present invention has the following beneficial effects:

[0037] 1. The present invention controls the direction of water flow by rotating the container, realizes the separation of measurement and drainage, solves the problem of inaccurate instrument measurement and inability to measure stably for a long time due to the accumulation of a large amount of powdery impurities and calcifications in the seepage fluid of the dam. At the same time, the present invention adopts a valve-free design to solve the problem of unreliable instrument caused by valves or lax closure;

[0038] 2. The present invention designs an automatic cleaning device. The instrument has a container self-cleaning device. Under the control of the actuator's measurement and control circuit, it can automatically complete the cleaning work inside the container, thereby increasing the service life of the instrument, streamlining the structure, facilitating maintenance, and expanding the scope of use conditions. It has good promotion and application value.

[0039] 3. The present invention adopts a seepage measurement method by rotating the measuring container. The water flow direction can be controlled by simply rotating the measuring container directly connected to the motor. The transmission mechanism is simple, which improves the working reliability of the instrument.

[0040] 4. The structure of the present invention is simple, and the height of the water inlet of the instrument is low, making the instrument more suitable for working conditions with limited height. The technical solution of the present invention does not have any valves, and will not be stuck due to impurities or sediment, which reduces the probability of instrument failure and improves the reliability of the instrument's long-term measurement work.

[0041] 5. In the present invention, the instrument has a wave protector, which can reduce the impact of water waves on measurement and improve measurement accuracy and stability.

[0042] 6. In the present invention, the measurement and control circuit, position state feedback device, sensor, motor, etc. are integrated into the actuator, which realizes instrument integration, local calculation of final value, and digitization, eliminating the problem of susceptibility to interference of sensor information transmitted by long cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a cross-sectional view of the overall structure of the rotary bucket type dam seepage flow meter of the present invention;

[0044] Figure 2 The figure is a diagram showing the internal structure of the actuator of the rotary bucket type dam seepage meter of the present invention.

[0045] In the figure: 1. support base plate; 12. support shaft; 2. connecting support plate; 3. sealer; 4. liquid level switch; 5. wave protector; 6. container; 61. drain outlet; 62. upper cover; 63. base plate; 7. guide rod; 8. support rod; 9. actuator; 91. position sensor; 92. measurement and control circuit; 93. position feedback device; 94. position indicator; 95. motor; 10. upper support plate; 11. drainage pipe; 13. drain pipe; 14. self-cleaning device; 15. bearing. DETAILED DESCRIPTION

[0046] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0047] In the description of this embodiment, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this embodiment and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this embodiment.

[0048] Embodiment 1:

[0049] This embodiment provides a rotary bucket type dam seepage meter, such as Figure 1As shown, it includes an instrument support component, a container 6 connected to the instrument support component, and an actuator 9.

[0050] The instrument support component includes a support base plate 1, a support shaft 12 installed on the support base plate 1, several support rods 8 installed on the support base plate 1, a support plate 2 installed on the support rods 8, and an upper support plate 10 installed on the top of multiple support rods 8; the upper support plate 10 is provided with a guide tube for guiding water into the container 6; a liquid level meter is fixedly installed on the support shaft 12, and a sealer 3 and a self-cleaning device 14 are fixedly provided at the lower part of the support shaft 12.

[0051] The container 6 is rotatably connected to the support shaft 12 via a bearing 15 . An opening corresponding to the position of the flow guide pipe is formed on the upper cover 62 of the container 6 . A drain port 61 and a drain pipe 13 are provided on the container bottom plate 63 of the container 6 .

[0052] The actuator 9 drives the container 6 to rotate around the support shaft 12, and the drain port 61 and the drain pipe 13 rotate together with the container 6, so that the container 6 switches to the reset position or the measuring position, and calculates and obtains the flow value by connecting with the liquid level meter;

[0053] When the container 6 is in the reset position, the drain pipe 13 is directly below the drainage pipe 11, the water in the drainage pipe 11 flows into the drain pipe 13 and is discharged, and the drain port 61 is in an open state;

[0054] When the container 6 is in the measuring position, the drain pipe 13 is far away from directly below the drainage pipe 11 , and the water in the drainage pipe 11 does not flow into the drain pipe 13 , and the drain port 61 is sealed by the sealer 3 .

[0055] Implementation principle: The container 6 can be driven by the actuator 9 fixed on the upper support plate 10 through its upper cover 62, and rotate around the support shaft 12 through the bearing 15 installed on the support shaft 12. The drain outlet 61 of the container 6 and the drain pipe 13 installed on the bottom plate of the container 6 rotate with the container 6 to control the direction of water flow.

[0056] The direction of water flow is controlled by rotating the container 6 to achieve separation of measurement and drainage, thereby solving the problem of inaccurate instrument measurement and inability to perform long-term stable measurement due to the accumulation of a large amount of powdery impurities and calcifications in the dam seepage fluid on the instrument. At the same time, the present invention adopts a valve-free design to solve the problem of unreliable instrument caused by valves or lax closure.

[0057] Embodiment 2:

[0058] like Figure 1As shown, the rotary barrel type dam seepage meter of this embodiment comprises: an instrument support component consisting of a support shaft 12 mounted on an instrument support base plate 1, a plurality of support rods 8 mounted on the periphery of the instrument support base plate 1, a support plate 2 mounted on the support rods 8, and an upper support plate 10 mounted on the plurality of support rods 8, an actuator 9 mounted on the support plate 10, a bearing 15 mounted on the support shaft 12, a container 6 mounted on the bearing 15, a wave breaker 5 and a guide rod 7 mounted on the support shaft 12, a liquid level switch 4 sleeved on the guide rod 7, a sealer 3 and a self-cleaning device 14 mounted on the lower end of the wave breaker 5, a drainage pipe 11 mounted on the upper support plate 10, and a drainage pipe 13 mounted on the bottom plate 63 of the container 6.

[0059] Figure 2 The figure shows the internal components of the actuator 9, including a motor 95, a measurement and control circuit 92, a position feedback device 93, a position sensor 91, and a position indicator 94.

[0060] Figure 1 The upper end of the wave protector 5 in the middle is provided with an opening (not shown) for communicating the inside and outside air.

[0061] Figure 1 The sealing material of the sealer 3 is silicone rubber.

[0062] Figure 1 The self-cleaning device 14 in the present embodiment adopts a cleaning brush.

[0063] The container 6 in FIG. 1 is connected to the rotating shaft (not shown in the figure) of the motor 95 of the actuator 9 through its upper cover 62, and is connected to the outer periphery of the bearing 15 through the bottom plate 63. A drain port 61 is provided on the bottom plate 63 of the container 6, and an opening (not shown in the figure) is provided on the upper cover 62 of the container 6; the drainage pipe 11 introduces water flow into the container 6 through the opening on the upper cover 62 of the container 6.

[0064] The rotary barrel type dam seepage meter of the present invention is Figure 1 In the illustrated embodiment, the container 6 can be driven by the motor 95 of the actuator 9 fixed on the upper support plate 10 through its upper cover 62, and rotate around the support shaft 12 through the bearing 15 installed on the support shaft 12. The drain outlet 61 of the container 6 and the drain pipe 13 installed on the bottom plate 63 of the container 6 rotate together with the container 6 to control the direction of water flow.

[0065] When no measurement is performed, the container 6 is in the reset position, the water in the drainage pipe 11 flows into the drain pipe 13 installed on the bottom plate 63 of the container 6 and is directly discharged, the drain port 61 at the bottom of the container 6 is in a completely open state, and no water will accumulate in the container 6; the liquid level switch 4 returns to the lowermost end of the guide rod 7.

[0066] The measurement workflow of the rotary bucket dam seepage meter embodiment of the present invention is as follows:

[0067] (1) Measurement preparation: First, a process of resetting the position of container 6 is executed. The measurement and control circuit 92 in the actuator 9 controls the motor 95 to drive the container 6 to rotate in the opposite direction. The position feedback device 93 in the actuator 9 synchronously feeds back the position status of container 6 to the position sensor 91. When container 6 returns to the reset position, the position sensor 91 feeds back the reset position status of container 6 to the measurement and control circuit 92. The measurement and control circuit 92 stops driving the motor 95, and the position indicator 94 synchronously indicates the reset position. When container 6 is in the reset position, the water in the drainage pipe 11 flows into the drain pipe 13 installed on the bottom plate 63 of container 6 and is directly discharged. The drain port 61 at the bottom of container 6 is in a fully open state, and no water will accumulate in container 6.

[0068] (2) Start the measurement, the measurement and control circuit 92 of the actuator 9 controls the motor 95 to drive the container 6 to rotate forward, and the position feedback device 93 in the actuator 9 synchronously feeds back the position status of the container 6 to the position sensor 91; when the container 6 rotates to reach the measurement position, the position sensor 91 feeds back the measurement position status of the container 6 to the measurement and control circuit 92, the measurement and control circuit 92 stops driving the motor 95, and the position indicator 94 synchronously indicates the measurement position; when the container 6 is in the measurement position state, the water in the drainage pipe 11 all flows into the container 6, and at the same time, the drain port 61 at the bottom of the container 6 is sealed by the sealer 3 fixed at the lower end of the wave breaker 5, and the water in the container 6 will not flow out.

[0069] (3) Measurement: As the amount of water increases, the liquid level gradually rises. When the liquid level reaches the wave breaker 5, the water waves on the liquid surface are blocked, so that the liquid surface waves in the wave breaker 5 are reduced; as the liquid level continues to rise, when the liquid level switch 4 reaches the measurement zero point along the guide rod 7, the liquid level switch 4 outputs a liquid level zero point signal, and the measurement and control circuit 92 in the actuator 9 starts timing; the liquid level continues to rise, when the liquid level switch 4 reaches the measurement full scale along the guide rod 7, the liquid level switch 4 outputs a liquid level reaching full scale point signal, and the measurement and control circuit 92 in the actuator 9 stops timing; the measurement and control circuit 92 calculates the flow value based on the timing value and the preset flow calibration parameters and saves it in the memory of the measurement and control circuit 92. The remote acquisition device can obtain the flow value data through the communication interface of the measurement and control circuit 92.

[0070] (4) When the measurement is finished, the measurement and control circuit 92 in the actuator 9 controls the motor 95 to drive the container 6 to rotate in the opposite direction, and the position feedback device 93 in the actuator 9 synchronously feeds back the position status of the container 6 to the position sensor 91; when the container 6 rotates in the opposite direction to reach the reset position, the position sensor 91 sends the reset position status of the container 6 to the measurement and control circuit 92, and the measurement and control circuit 92 stops driving the motor 95, and the position indicator 93 synchronously indicates the reset position; when the container 6 is in the reset position, all the water in the drainage pipe 11 flows into the drain pipe 13 and is directly discharged; at the same time, the drain port 61 on the bottom plate 63 of the container 6 is completely open and is no longer blocked by the sealer 3, and the water in the container 6 flows out, and finally no water accumulates in the container 6.

[0071] The rotary bucket type dam seepage meter of the present invention is also designed with a self-cleaning function. The self-cleaning process of the embodiment is as follows:

[0072] (1) Self-cleaning preparation: First, the measurement and control circuit 92 in the actuator 9 controls the execution of a container 6 position reset process to return the container 6 to the reset position; then, the measurement and control circuit 92 in the actuator 9 controls the motor 95 to drive the container 6 to rotate forward to the cleaning starting position (in this embodiment, the cleaning starting position and the measuring position are unified as the same position).

[0073] (2) Cleaning: the measurement and control circuit 92 in the actuator 9 controls the motor 95 to drive the moving container 6 to rotate forward to the cleaning end position. After a short pause, the measurement and control circuit 92 in the actuator 9 controls the motor 95 again to drive the moving container 6 to rotate backward to the cleaning starting position (in this embodiment, the cleaning end position is set to a position 300° forwardly rotated from the cleaning starting position. At this position, the sealer 3 is set so that it does not hit the drain pipe 13, but is as close to the drain pipe 13 as possible). During the rotation of the container 6, the water flow of the drainage pipe 11 flows into the container 6, and the self-cleaning device 14 installed at the lower end of the wave breaker 5 automatically cleans the mud, impurities, dirt and other substances at the bottom of the container 6. The washed mud, impurities, dirt and other substances are discharged along with the water flow entering the container 6 through the drain port 61 on the bottom plate 63 of the container 6.

[0074] (3) According to the set parameters, the actuator 9 is controlled to automatically control and repeat the cleaning process in the above (2) until the set cleaning times are completed.

[0075] (4) After cleaning is completed, the measurement and control circuit 92 in the actuator 9 controls the execution of a process of resetting the position of the container 6, so that the container 6 returns to the reset position; at this position, the water in the drainage pipe 11 flows into the drain pipe 13 installed on the container bottom plate 63 and is directly discharged away, and the drain port 61 at the bottom of the container 6 is in a completely open state, and no water will accumulate in the container 6.

[0076] The present invention adopts a seepage measurement method that uses a rotating measuring container 6 (called a rotating barrel type). The direction of water flow can be controlled by rotating the measuring container 6 directly connected to the motor 95. The transmission mechanism is simple, and the reliability of the instrument is improved. The water flow control components of the present invention only have a rotatable measuring container 6, a fixed water inlet pipe, a drain pipe 13, and a sealer 3 for the drain port 61 at the bottom of the container 6. The structure is simple and the height of the instrument water inlet is low, making the instrument more suitable for working conditions with limited height. The technical solution of the present invention does not have any valves, and there will be no stuck phenomenon due to impurities or silt, which reduces the probability of instrument failure and improves the reliability of the instrument's long-term measurement work. In the present invention, the instrument has a wave breaker 5, which can reduce the influence of water waves on the measurement and improve the measurement accuracy and stability. In the present invention, the instrument has a container 6 self-cleaning device 14, which can automatically complete the cleaning work inside the container 6 under the control of the measurement and control circuit 92 of the actuator 9. In addition, the present invention integrates the measurement and control circuit 92, the position state feedback device and the sensor, the motor 95, etc. into the actuator 9, realizing the integration of the instrument, local calculation of the final value, and digitization, eliminating the problem of susceptibility to interference of long cable transmission of sensor information.

[0077] The motor 95 in the present invention is not limited to the common reduction DC motor 95, but can also be a stepper motor 95, a servo motor 95, etc. The liquid level meter is not limited to the float type, but can also be a pressure type, etc. All sensors that can sense the change in liquid level height can realize the liquid level monitoring work and finally calculate the flow value. The sealing material of the sealer 3 is not limited to rubber, but can also be other high and low temperature resistant and wear-resistant soft materials. The self-cleaning device 14 is not limited to a cleaning brush, but can also be a device that can realize the automatic cleaning function, such as an ultrasonic cleaning device.

[0078] The control method of the measurement and control circuit 92 includes the following steps:

[0079] The control motor 95 drives the container 6 to rotate in the opposite direction. When the receiving position sensor 91 sends information indicating that the container 6 has reached the reset position, the driving motor 95 is stopped, and the control position indicator 94 is synchronously indicated to the reset position.

[0080] The control motor 95 drives the container 6 to rotate forwardly. When the receiving position sensor 91 sends information indicating that the container 6 has reached the measuring position, the driving motor 95 is stopped, and the control position indicator 94 synchronously indicates the measuring position.

[0081] When receiving the liquid level zero point signal output by the liquid level meter, the timing starts; when receiving the liquid level reaching the full point signal output by the liquid level meter, the measurement and control circuit 92 in the actuator 9 stops timing; according to the timing duration and the preset flow calibration parameters, the flow value is calculated and stored in the memory of the measurement and control circuit 92;

[0082] The control motor 95 drives the container 6 to rotate in the reverse direction. When the receiving position sensor 91 sends information indicating that the container 6 has reached the reset position, the driving motor 95 is stopped and the control position indicator 94 is synchronously indicated to the reset position.

[0083] The method also includes a flow meter self-cleaning method, which includes the following steps:

[0084] When a self-cleaning instruction is obtained or after a preset time, the control motor 95 drives the container 6 to rotate in the opposite direction, and when the container 6 reaches the reset position state information sent by the receiving position sensor 91, the driving motor 95 is stopped, and the control position indicator 94 is synchronously indicated to the reset position;

[0085] The motor 95 is controlled to drive the container 6 to rotate forward for cleaning until the cleaning end position, and then the motor 95 is controlled to drive the container 6 to rotate reverse for cleaning until the reset position;

[0086] According to the pre-input setting parameters, the control actuator 9 is automatically controlled to repeat the cleaning process until the set cleaning times are completed.

[0087] Embodiment three:

[0088] This embodiment provides a control method for a rotary bucket dam flowmeter, which is based on the rotary bucket dam flowmeter described in Embodiment 2. The measurement and control circuit controls the motor according to the measurement instruction and the container position signal, and calculates the flow value according to the signal of the liquid level meter and the preset flow calibration parameter. The specific steps are as follows:

[0089] The measurement and control circuit controls the motor to drive the container to the reset position to drain the liquid in the container;

[0090] The measurement and control circuit controls the motor to drive the container to the measurement position to start measurement;

[0091] At the measuring position, as the liquid level in the container continues to rise, when the liquid level reaches the measurement zero point, the liquid level switch outputs a liquid level zero point signal to the measurement and control circuit, and the measurement and control circuit starts timing; the liquid level continues to rise, when the liquid level reaches the measurement full scale, the liquid level switch outputs a liquid level reaching the full scale point signal to the measurement and control circuit, and the measurement and control circuit stops timing; the measurement and control circuit calculates and saves the flow value based on the timing duration and the preset flow calibration parameters.

[0092] The control method specifically includes the following steps:

[0093] The container is driven to rotate in the reverse direction, and when the receiving container reaches the reset position state information, the container is stopped;

[0094] The container is driven to rotate in the forward direction, and when the receiving container reaches the measuring position state information, the container is stopped;

[0095] When receiving the liquid level zero point signal output by the liquid level meter, the timing starts; when receiving the liquid level reaching the full point signal output by the liquid level meter, the timing stops; according to the timing duration and the preset flow calibration parameters, the flow value is calculated and saved.

[0096] The method also includes a flow meter self-cleaning method, which includes the following steps:

[0097] Step A: when a self-cleaning instruction is obtained or after a preset time, the container is driven to rotate in the opposite direction, and when the receiving container reaches the reset position state information, the driving motor is stopped, and the control position indicator is controlled to synchronously indicate the reset position;

[0098] Step B: driving the container to rotate forward to the cleaning end position, and then driving the container to rotate reversely to the reset position;

[0099] Step C: According to the pre-input setting parameters, the actuator is controlled automatically and step B is repeated until the set cleaning times are completed.

[0100] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features, and in the description of the present invention, "plurality" means two or more, unless otherwise clearly and specifically defined.

[0101] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0102] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0103] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0104] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and intent of the present invention.

Claims

1. Rotating bucket type dam seepage meter, characterized by: It includes an instrument support component, a container connected to the instrument support component, and an actuator; The instrument support component includes a support base plate, a support shaft installed on the support base plate, a plurality of support rods installed on the support base plate, a support plate installed at the lower part of the support rods, and an upper support plate installed at the top of the plurality of support rods; a drainage pipe for guiding water into the container is provided on the upper support plate; a liquid level gauge is fixedly installed on the support shaft, and a sealer is fixedly connected to the bottom of the container below the liquid level gauge; The container is installed between the support plate and the upper support plate, and is rotatably connected to the support shaft through a bearing. The upper cover of the container is provided with an opening for introducing water, and the bottom plate of the container is provided with a drain port and a drain pipe; The actuator is used to drive the container to rotate around the support shaft, drive the drain port and the drain pipe to rotate, switch the container to the reset position or the measuring position, and calculate and obtain the flow value by connecting with the liquid level meter; When the container is in the reset position, the drain pipe is directly below the drainage pipe, and the drain port is in an open state; When the container is in the measuring position, the drain pipe is away from directly below the drainage pipe, and the drain port is sealed by the sealer; The actuator is mounted on the upper support plate, and includes a measurement and control circuit, a motor, a position feedback device, a position sensor, and a position indicator all connected to the measurement and control circuit; The output shaft of the motor is fixedly connected to the top of the container and is used to drive the container to rotate; The position feedback device is used to feed back the position status of the container to the position sensor; The position sensor is used to feed back the container position signal to the measurement and control circuit; The position indicator is used to synchronously indicate the position status of the container; The measurement and control circuit communicates with the remote device through a communication interface to obtain measurement instructions and transmit data. The measurement and control circuit controls the motor according to the measurement instructions and the container position signal, and calculates the flow value according to the signal of the liquid level meter and the preset flow calibration parameters; The outer cover of the liquid level meter is provided with a wave breaker, and an opening is left at the upper end of the wave breaker.

2. The rotary bucket type dam seepage meter according to claim 1, characterized in that: The liquid level gauge is a float type liquid level gauge, including a guide rod and a liquid level switch installed on a support shaft through a connecting rod; the liquid level switch is connected to the measurement and control circuit; the liquid level switch includes a float and a position switch, the float is sleeved on the guide rod, and the position switch is pre-buried in a preset position in the guide rod.

3. The rotary bucket type dam seepage meter according to claim 1, characterized in that: A self-cleaning device is fixedly connected to the bottom of the container closely below the liquid level meter; when the measurement and control circuit obtains a self-cleaning instruction or every preset time, the measurement and control circuit controls the motor to drive the container to rotate back and forth around the support shaft to clean the inside of the container.

4. The rotary bucket type dam seepage meter according to claim 3 is characterized in that: The self-cleaning device is a cleaning brush and / or an ultrasonic cleaning device.

5. The rotary bucket type dam seepage meter according to claim 1, characterized in that: The sealer is a silicone rubber sealer.

6. A control method for a rotary bucket dam seepage meter, characterized in that: The rotary bucket dam seepage meter according to claim 1 comprises the following steps: The container is driven to rotate in the reverse direction, and when the receiving container reaches the reset position state information, the container is stopped; The container is driven to rotate in the forward direction, and when the receiving container reaches the measuring position state information, the container is stopped; When receiving the liquid level zero point signal output by the liquid level meter, the timing starts; when receiving the liquid level reaching the full point signal output by the liquid level meter, the timing stops; according to the timing duration and the preset flow calibration parameters, the flow value is calculated and saved; The rotary barrel type dam seepage flow meter also includes a self-cleaning device fixedly connected to the bottom of the container, and the method also includes a flow meter self-cleaning method, which includes the following steps: Step A: when a self-cleaning instruction is obtained or after a preset time, the container is driven to rotate in the opposite direction, and when the receiving container reaches the reset position state information, the driving motor is stopped, and the control position indicator is controlled to synchronously indicate the reset position; Step B: driving the container to rotate forward to the cleaning end position, and then driving the container to rotate reversely to the reset position; Step C: According to the pre-input setting parameters, the actuator is controlled automatically and step B is repeated until the set cleaning times are completed.

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