High-energy wave algae removal device and method for surface water

Abstract

The invention provides a high-energy wave algae removal device and method for surface water, and belongs to the technical field of surface water algae removal, the high-energy wave algae removal device comprises an outer shell, a high-energy wave control assembly, a power generation mechanism and a monitoring assembly, the outer shell comprises a floating body box and a protection cover, and the high-energy wave control assembly comprises a storage battery, a PLC, a high-energy wave controller and a high-energy wave generator. The power generation mechanism comprises a photovoltaic power generation device and a wind power generation device, the photovoltaic power generation device comprises a photovoltaic panel, the photovoltaic panel is arranged at the top of the protective cover, the wind power generation device comprises a wind cup and a power generator, the monitoring assembly is fixedly installed at the bottom of the floating body box, and the monitoring assembly comprises a chlorophyll a sensing electrode and a blue-green algae sensing electrode. The device solves the problems that an existing ultrasonic algae removal device is low in integration level, complex in structure, large in energy consumption, unreasonable in ultrasonic operation parameters, safe in water quality and the like; meanwhile, the situation that the device is powered off or powered off under the condition of no sun is avoided, and efficient and stable operation of the device is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of surface water algae removal, and in particular to a high-energy wave algae removal device and method for surface water. Background Art

[0002] With the advancement of urbanization and economic and social development, large amounts of nitrogen and phosphorus have entered aquatic ecosystems, exacerbating the eutrophication of rivers, lakes, estuaries and offshore areas, leading to the massive reproduction of algae and the formation of algal blooms. Algal blooms seriously threaten the functions of ecosystems, reduce the quality of recreational and drinking water, and have adverse effects on fisheries and human health. The frequency, scale and duration of cyanobacterial blooms are increasing worldwide. Therefore, controlling and managing algal blooms is a difficult problem that needs to be urgently solved in the ecological management of rivers, lakes and reservoirs.

[0003] At present, physical, chemical and biological methods can be used to control the traditional blue algae bloom. The physical method generally achieves the purpose of algae removal by artificial salvage, which is only suitable for the control of small-scale algae water bodies, has low efficiency and cannot fundamentally solve algae pollution; the chemical method can kill algae quickly, but the toxic side effects on the water environment and the release of algae toxins limit its application in natural water bodies; although the biological method can achieve the purpose of controlling the growth of algae, the cycle is long and it is not suitable for the treatment of sudden algae blooms. Ultrasonic algae removal technology mainly uses the shock wave generated by the "cavitation" effect of special frequency ultrasound acting on the liquid to break the cell wall of algae, destroy the active enzyme, and make it inactive and die, so as to achieve the purpose of algae removal and algae prevention. However, the current ultrasonic algae removal device has problems such as low integration, high energy consumption, and unreasonable ultrasonic parameters, resulting in low algae removal efficiency, unnecessary energy consumption, and algae toxin release. Therefore, the application of ultrasonic technology in the control of algae blooms needs to ensure water quality safety while efficiently removing and inhibiting algae. Summary of the invention

[0004] The purpose of the present invention is to provide a high-energy wave algae removal device and method for surface water, which solves the problems of low integration, complex structure, high energy consumption, unreasonable ultrasonic operating parameters and water quality safety of existing ultrasonic algae removal devices; avoids the situation where the high-energy wave algae removal device is powered off or without power in the absence of sunlight, and ensures the efficient and stable operation of the high-energy wave algae removal device.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] In the first aspect, a high-energy wave algae removal device for surface water is characterized by comprising an outer shell, a high-energy wave control component, a power generation mechanism and a monitoring component, wherein the outer shell comprises a float box and a protective cover, and the protective cover is fixedly mounted on the top of the float box.

[0007] The high-energy wave control component includes a battery, a PLC, a high-energy wave controller and a high-energy wave generator. The battery, PLC and high-energy wave controller are all fixedly installed inside the protective cover, and the high-energy wave generator is fixedly installed at the bottom of the buoyancy box. The battery, PLC, high-energy wave controller and high-energy wave generator are electrically connected in sequence to form a high-energy wave control system.

[0008] The power generation mechanism includes a photovoltaic power generation device and a wind power generation device. The photovoltaic power generation device includes a photovoltaic panel, and the photovoltaic panel is arranged on the top of the protective cover. The wind power generation device includes a wind cup and a generator, and the wind cup is arranged on the top of the protective cover. The generator is fixedly installed inside the protective cover. The wind cup and the generator are connected. The electric energy generated by the photovoltaic power generation device and the wind power generation device in coordination is stored in the battery.

[0009] The monitoring component is fixedly installed at the bottom of the floating box. The monitoring component includes a chlorophyll a sensor electrode and a blue-green algae sensor electrode. The chlorophyll a sensor electrode and the blue-green algae sensor electrode are electrically connected to an online monitoring device fixedly installed inside the protective cover to form an online monitoring system for the number of algae in the water body. The online monitoring device is electrically connected to the PLC.

[0010] Furthermore, the number of the photovoltaic panels is four groups, and the four groups of photovoltaic panels are symmetrically arranged in pairs with the longitudinal axis of the protective cover as the center, and the angle between the photovoltaic panels and the protective cover is forty-five degrees; the output end of the photovoltaic panel is electrically connected to the input end of the battery.

[0011] Furthermore, the wind cup is rotatably mounted at the top center of the protective cover and is electrically connected to the generator, and the output end of the generator is electrically connected to the input end of the battery.

[0012] Furthermore, an electrode shield is provided outside the monitoring component, and the electrode shield is fixedly installed on the bottom of the float box, and the detection ends of the chlorophyll a sensor electrode and the blue-green algae sensor electrode are located outside the electrode shield.

[0013] Furthermore, a filter is provided outside the high-energy wave generator, and the filter is fixedly installed at the bottom of the buoyancy box.

[0014] Furthermore, the storage capacity of the battery is 20-30 kW·h.

[0015] Furthermore, the high-energy wave frequency emitted by the high-energy wave generator is 20-30kHz, and the energy density per unit area within a diameter of 50cm is 300-400W / CM 2 .

[0016] In a second aspect, a high energy wave algae removal method for surface water is provided, characterized in that it comprises the following steps:

[0017] 1) Provide high energy wave algae removal device.

[0018] 2) Place the high-energy wave algae removal device into an algae-containing water body and start the device.

[0019] 3) The online monitoring system in the high-energy wave algae removal device intermittently monitors the chlorophyll a concentration and algae density in the water body, and transmits the real-time data to the PLC for judgment.

[0020] 4) Send instructions to the high energy wave controller to control the operation of the high energy wave generator.

[0021] Furthermore, in step 3: when the chlorophyll a concentration is less than 20 μg / L and the algae density is less than 1.0×107 / L, it is determined that there is no water bloom and the high-energy wave generator is in a dormant state.

[0022] When one of the two indicators, chlorophyll a concentration of 20 to 50 μg / L and algae density of 1.0×107 to 5.0×107 cells / L, is monitored, it is determined that mild algal bloom is met, and the operation time of the high-energy wave generator is 5 to 10 minutes.

[0023] When the chlorophyll a concentration is monitored to be more than 50-100 μg / L and the algae density is 5.0×107-1.0×108 / L, it is determined that moderate algal bloom is met, and the operation time of the high-energy wave generator is 15-20 minutes.

[0024] When it is monitored that the chlorophyll a concentration exceeds 100 μg / L and the algae density exceeds 1.0×108 cells / L, it is determined that severe algal bloom is met and the high-energy wave generator continues to operate.

[0025] Further, in step 3: when the instruction sent by the PLC to the high-energy wave generator is in a dormant state, the interval time for the next intermittent monitoring of the water body is 1 to 2 hours.

[0026] When the instruction sent by PLC to the high-energy wave generator is in working state, the interval time for the next intermittent monitoring of the water body is 20 to 30 minutes.

[0027] Advantages of the present invention:

[0028] The present invention can intelligently control the start and stop of the high-energy wave generator according to indicators such as chlorophyll a concentration and algae density in the target water area, effectively remove algae without causing the release of algal toxins, and solves the problems of low integration, complex structure, high energy consumption, unreasonable ultrasonic operation parameters and water quality safety of existing ultrasonic algae removal devices; through the coordinated power generation of photovoltaic power generation components and wind power generation components, the high-energy wave algae removal device is prevented from being powered off or without power in the absence of sunlight, thereby ensuring the efficient and stable operation of the high-energy wave algae removal device. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the device of the present invention;

[0030] Figure 2 It is a curve diagram showing the algae removal effect of the device of the present invention on a water body with mild algae bloom;

[0031] Figure 3 It is a curve diagram showing the algae removal effect of the device of the present invention on a moderate algae bloom water body.

[0032] In the figure: 1. buoyancy box, 2. protective cover, 3. photovoltaic panel, 4. wind cup, 5. battery, 6. generator, 7. PLC, 8. online monitoring device, 9. high-energy wave controller, 10. chlorophyll a sensing electrode, 11. blue-green algae sensing electrode, 12. electrode protective cover, 13. high-energy wave generator, 14. filter. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention.

[0034] like Figure 1 As shown, a high-energy wave algae removal device for surface water includes an outer shell, a high-energy wave control component, a power generation mechanism and a monitoring component. The outer shell includes a float box 1 and a protective cover 2. The protective cover 2 is fixedly installed on the top of the float box 1.

[0035] The high-energy wave control component includes a battery 5, a PLC7, a high-energy wave controller 9 and a high-energy wave generator 13. The battery 5, PLC7 and the high-energy wave controller 9 are all fixedly installed inside the protective cover 2. The high-energy wave generator 13 is fixedly installed at the bottom of the buoyancy box 1. The battery 5, PLC7, the high-energy wave controller 9 and the high-energy wave generator 13 are electrically connected in sequence to form a high-energy wave control system.

[0036] The power generation mechanism includes a photovoltaic power generation device and a wind power generation device. The photovoltaic power generation device includes a photovoltaic panel 3, and the photovoltaic panel 3 is arranged on the top of the protective cover 2. The wind power generation device includes a wind cup 4 and a generator 6. The wind cup 4 is arranged on the top of the protective cover 2, and the generator 6 is fixedly installed inside the protective cover 2. The wind cup 4 and the generator 6 are connected. The electric energy generated by the photovoltaic power generation device and the wind power generation device is stored in the battery 5, which can avoid power outages or power outages in the device when there is no sunlight, thereby ensuring the efficient and stable operation of the high-energy wave algae removal device.

[0037] The monitoring component is fixedly installed at the bottom of the floating box 1, and the monitoring component includes a chlorophyll a sensor electrode 10 and a blue-green algae sensor electrode 11. The chlorophyll a sensor electrode 10 and the blue-green algae sensor electrode 11 are electrically connected to an online monitoring device 8 fixedly installed inside the protective cover 2 to form an online monitoring system for the amount of algae in the water body. The online monitoring device 8 is electrically connected to PLC7. The online monitoring device 8 triggers the high-energy wave control system to remove algae from the target water body by being electrically connected to the PLC7.

[0038] As a preferred embodiment of the present invention, the number of the photovoltaic panels 3 is four groups, and the four groups of photovoltaic panels 3 are symmetrically arranged in pairs with the longitudinal axis of the protective cover 2 as the center, and the angle between the photovoltaic panels 3 and the protective cover 2 is forty-five degrees; the output end of the photovoltaic panel 3 is electrically connected to the input end of the battery 5.

[0039] As a preferred embodiment of the present invention, the wind cup 4 is rotatably mounted at the top center of the protective cover 2 and is electrically connected to the generator 6 , and the output end of the generator 6 is electrically connected to the input end of the battery 5 .

[0040] As a preferred embodiment of the present invention, an electrode shield 12 is provided outside the monitoring component, and the electrode shield 12 is fixedly installed at the bottom of the float box 1 , and the detection ends of the chlorophyll a sensor electrode 10 and the blue-green algae sensor electrode 11 are located outside the electrode shield 12 .

[0041] As a preferred embodiment of the present invention, a filter screen 14 is disposed outside the high-energy wave generator 13 , and the filter screen 14 is fixedly installed at the bottom of the buoyancy box 1 to prevent large-volume materials from contacting the high-energy wave generator 13 .

[0042] As a preferred embodiment of the present invention, the online monitoring device 8 is used to receive data information of the monitoring component and feed it back to the PLC7; the PLC7 is used to judge the data information and send instructions to the high-energy wave controller 9; the online monitoring device 8 transmits the data information to the smart terminal through the 4G / 5G network, and the high-energy wave controller 9 can be remotely shut down if there is no algae in the target water body or the amount is small.

[0043] As a preferred embodiment of the present invention, the storage capacity of the battery 5 is 20-30 kW·h, which is used to provide the electric energy required for the normal operation of the high-energy wave algae removal device.

[0044] As a preferred embodiment of the present invention, the high-energy wave frequency emitted by the high-energy wave generator 13 is 20-30kHz, and the energy density per unit area within a diameter of 50cm is 300-400W / CM 2 , its service life is greater than 3 years.

[0045] A high-energy wave algae removal method for surface water, using a high-energy wave algae removal device for surface water, comprising the following steps:

[0046] 1) Provide high energy wave algae removal device.

[0047] 2) Place the high-energy wave algae removal device into an algae-containing water body and start the device.

[0048] 3) The online monitoring system in the high-energy wave algae removal device intermittently monitors the chlorophyll a concentration and algae density in the water body, and transmits the real-time data to PLC7 for judgment.

[0049] 4) Send instructions to the high energy wave controller 9 to control the operation of the high energy wave generator 13.

[0050] As a preferred embodiment of the present invention, in step 3: when the chlorophyll a concentration is less than 20 μg / L and the algae density is less than 1.0×107 / L, it is determined that there is no water bloom and the high-energy wave generator 13 is in a dormant state.

[0051] When the chlorophyll a concentration is 20-50 μg / L and the algae density is 1.0×107-5.0×107 / L, it is determined that the algae bloom is mild and the operation time of the high-energy wave generator 13 is 5-10 minutes.

[0052] When the chlorophyll a concentration is monitored to be more than 50-100 μg / L and the algae density is 5.0×107-1.0×108 / L, it is determined that moderate algal bloom is met, and the operation time of the high-energy wave generator 13 is 15-20 minutes.

[0053] When it is monitored that the chlorophyll a concentration exceeds 100 μg / L and the algae density exceeds 1.0×10 8 cells / L, it is determined that severe algal bloom is met and the high-energy wave generator 13 continues to operate.

[0054] As a preferred embodiment of the present invention, in step 3: when the instruction sent by PLC7 to the high-energy wave generator 13 is in a dormant state, the interval time for the next intermittent monitoring of the water body is 1 to 2 hours.

[0055] When the instruction sent by PLC7 to the high-energy wave generator 13 is in working state, the interval time for the next intermittent monitoring of the water body is 20 to 30 minutes.

[0056] Embodiment 1:

[0057] This embodiment uses the high-energy wave algae removal device to treat a surface water body, in which the chlorophyll a concentration is 48 μg / L and the algae density is 4.7×107 cells / L, meeting the conditions for a mild algal bloom outbreak, and specifically includes the following steps:

[0058] 1) Provide high energy wave algae removal device.

[0059] 2) Place the high-energy wave algae removal device into an algae-containing water body and start the device.

[0060] 3) The online monitoring system 8 in the high-energy wave algae removal device intermittently monitors the chlorophyll a concentration and algae density in the water body, and transmits the real-time data to PLC7 for judgment.

[0061] 4) Send instructions to the high energy wave controller 9 to control the operation of the high energy wave generator 13.

[0062] The high-energy wave frequency emitted by the high-energy wave generator 13 is 20-30kHz, and the energy density per unit area within a diameter of 50cm is 300-400W / CM. 2 , run the working water body for 10 minutes.

[0063] The processing results are as follows Figure 2 (chlorophyll a concentration: μg / L, algae density: pieces / L) shows that as the working time increases, the algae removal effect is better. The initial density of Microcystis aeruginosa in the water body to be treated is about 4.7×107 pieces / L, and the chlorophyll a concentration is 48μg / L. After the algae removal device is continuously operated for 10 minutes according to the above parameters, the algae density drops to 1.8×106 pieces / L, and the chlorophyll a concentration drops to 9μg / L. The algae removal rate reaches 81.25%, and the effect is significant. This proves that the algae removal method of this embodiment can safely, economically and efficiently remove microalgae in water bodies.

[0064] Embodiment 2:

[0065] This embodiment uses the high-energy wave algae removal device to treat a surface water body. The chlorophyll a concentration in the water body is 100 μg / L, and the algae density is 1.2×108 cells / L. It is determined that the conditions for moderate algal bloom outbreak are met, and specifically includes the following steps:

[0066] 1) Provide high energy wave algae removal device;

[0067] 2) placing the high-energy wave algae removal device into an algae-containing water body and starting the device;

[0068] 3) The online monitoring system 8 in the high-energy wave algae removal device intermittently monitors the chlorophyll a concentration and algae density in the water body, and transmits the real-time data to the PLC 7 for judgment;

[0069] 4) Send instructions to the high energy wave controller 9 to control the operation of the high energy wave generator 13.

[0070] The high-energy wave frequency emitted by the high-energy wave generator 13 is 20-30kHz, and the energy density per unit area within a diameter of 50cm is 300-400W / CM. 2 , run the working water body for 20 minutes.

[0071] The processing results are as follows Figure 3 (chlorophyll a concentration: μg / L, algae density: pieces / L) shows that as the working time increases, the algae removal effect is better. The initial density of Microcystis aeruginosa in the water body to be treated is about 1.2×108 pieces / L, and the chlorophyll a concentration is 100μg / L. After the algae removal device is continuously operated for 20 minutes according to the above parameters, the algae density drops to 1.9×106 pieces / L, and the chlorophyll a concentration drops to 8μg / L. The algae removal rate reaches 92%, and the effect is significant. This proves that the algae removal method of this embodiment can safely, economically and efficiently remove microalgae in water bodies.

[0072] In summary, the present invention provides a high-energy wave algae removal device and method for surface water. By fixing it on the surface of the surface water body, it can operate in a wider range of waters. The online monitoring device transmits the real-time values ​​of chlorophyll a concentration and algae density to the PLC for judgment, and the high-energy wave controller then controls the operation of the high-energy wave generator. Ultrasonic waves can be used to effectively remove algae in surface water without causing the release of algal toxins, and the algae removal rate is high. The present invention uses photovoltaic power generation components and wind power generation components as the main energy sources, and is equipped with batteries to ensure the continuity of energy supply, which can avoid the high-energy wave algae removal device from power outages or power outages when there is no sun. This design saves energy and protects the environment, and the operation of the system is not directly affected by the weather. The system also has the functions of automated operation and remote operation to reduce labor costs and improve the efficiency of water bloom removal.

[0073] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art can still adjust the technical solutions described in the above embodiments or replace some of the technical features by equivalents. Therefore, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. A high energy wave algae removal device for surface water, characterized in that: It comprises an outer shell, a high-energy wave control component, a power generation mechanism and a monitoring component, wherein the outer shell comprises a buoyancy box (1) and a protective cover (2), wherein the protective cover (2) is fixedly mounted on the top of the buoyancy box (1); The high-energy wave control component comprises a battery (5), a PLC (7), a high-energy wave controller (9) and a high-energy wave generator (13); the battery (5), the PLC (7) and the high-energy wave controller (9) are all fixedly mounted inside the protective cover (2); the high-energy wave generator (13) is fixedly mounted at the bottom of the buoyancy box (1); the battery (5), the PLC (7), the high-energy wave controller (9) and the high-energy wave generator (13) are electrically connected in sequence to form a high-energy wave control system; The power generation mechanism comprises a photovoltaic power generation device and a wind power generation device, the photovoltaic power generation device comprises a photovoltaic panel (3), the photovoltaic panel (3) is arranged on the top of the protective cover (2), the wind power generation device comprises a wind cup (4) and a generator (6), the wind cup (4) is arranged on the top of the protective cover (2), the generator (6) is fixedly installed inside the protective cover (2), the wind cup (4) and the generator (6) are connected, and the electric energy generated by the photovoltaic power generation device and the wind power generation device in coordination is stored in the storage battery (5); The monitoring component is fixedly mounted on the bottom of the floating box (1), and comprises a chlorophyll a sensing electrode (10) and a blue-green algae sensing electrode (11). The chlorophyll a sensing electrode (10) and the blue-green algae sensing electrode (11) are both electrically connected to an online monitoring device (8) fixedly mounted inside the protective cover (2) to form an online monitoring system for the amount of algae in the water body, and the online monitoring device (8) is electrically connected to a PLC (7).

2. The high energy wave algae removal device for surface water according to claim 1, characterized in that: The number of the photovoltaic panels (3) is four groups, and the four groups of photovoltaic panels (3) are symmetrically arranged in pairs with the longitudinal axis of the protective cover (2) as the center, and the angle between the photovoltaic panels (3) and the protective cover (2) is forty-five degrees; the output end of the photovoltaic panel (3) is electrically connected to the input end of the battery (5).

3. The high energy wave algae removal device for surface water according to claim 2, characterized in that: The wind cup (4) is rotatably mounted at the top center of the protective cover (2) and is electrically connected to a generator (6); the output end of the generator (6) is electrically connected to the input end of the storage battery (5).

4. The high energy wave algae removal device for surface water according to claim 3, characterized in that: An electrode shield (12) is arranged outside the monitoring component, and the electrode shield (12) is fixedly installed on the bottom of the floating box (1), and the detection ends of the chlorophyll a sensing electrode (10) and the blue-green algae sensing electrode (11) are located outside the electrode shield (12).

5. The high energy wave algae removal device for surface water according to claim 4, characterized in that: A filter screen (14) is arranged outside the high-energy wave generator (13), and the filter screen (14) is fixedly installed on the bottom of the buoyancy box (1).

6. The high energy wave algae removal device for surface water according to claim 1, characterized in that: The storage capacity of the storage battery (5) is 20-30 kW·h.

7. The high energy wave algae removal device for surface water according to claim 1, characterized in that: The high-energy wave generator (13) emits a high-energy wave with a frequency of 20 to 30 kHz and an energy density of 300 to 400 W / cm per unit area within a diameter of 50 cm. 2 .

8. A high energy wave algae removal method for surface water, using a high energy wave algae removal device for surface water as claimed in any one of claims 1 to 7, characterized in that: The following steps are involved: 1) Provide high energy wave algae removal device; 2) placing the high-energy wave algae removal device into an algae-containing water body and starting the device; 3) The online monitoring system in the high-energy wave algae removal device intermittently monitors the chlorophyll a concentration and algae density in the water body, and transmits the real-time data to the PLC (7) for judgment; 4) Sending instructions to the high energy wave controller (9) to control the operation of the high energy wave generator (13).

9. A high energy wave algae removal method for surface water according to claim 8, characterized in that: In step 3: when the chlorophyll a concentration is less than 20 μg / L and the algae density is less than 1.0×107 cells / L, it is determined that there is no water bloom and the high-energy wave generator (13) is in a dormant state; When the concentration of chlorophyll a is 20-50 μg / L and the algae density is 1.0×107-5.0×107 / L, it is determined that the algae bloom is mild and the operation time of the high-energy wave generator (13) is 5-10 minutes. When the chlorophyll a concentration is monitored to be more than 50-100 μg / L and the algae density is 5.0×107-1.0×108 / L, it is determined that the moderate algal bloom is met, and the operation time of the high-energy wave generator (13) is 15-20 minutes; When it is monitored that the chlorophyll a concentration exceeds 100 μg / L and the algae density exceeds 1.0×108 cells / L, it is determined that severe algal bloom is met and the high-energy wave generator (13) continues to operate.

10. The high energy wave algae removal method for surface water according to claim 8, characterized in that: In step 3: when the instruction sent by PLC (7) to the high-energy wave generator (13) is in a dormant state, the interval for the next intermittent monitoring of the water body is 1 to 2 hours; When the instruction sent by the PLC (7) to the high-energy wave generator (13) is in the working state, the interval time for the next intermittent monitoring of the water body is 20 to 30 minutes.

Images