Water curtain type forced turbulence device for killing pests in water

Abstract

The application relates to a water curtain type forced turbulent device for killing pests in a water body, wherein the device comprises a data acquisition module for acquiring flow fields and turbulent characteristics at different spatial positions and analyzing the flow fields and the turbulent characteristics to generate at least one turbulent data; a turbulent flow generation module for adjusting the layout form of a jet hole, the power of a water pump and the water spraying height to generate a turbulent flow field and shearing; and a turbulent flow control module for injecting a high-pressure water flow into the water body to generate a turbulent water curtain or a strongly disturbed water body meeting preset requirements, generating a turbulent intensity of the high-pressure water flow according to the turbulent water curtain or the strongly disturbed water body, and destroying the shells and inner cysts of pests in the water body by using the turbulent flow field and the shearing based on the turbulent intensity, so as to kill the pests in the water body. Thus, the problems of the existing clam larva killing method, such as serious pollution, low efficiency, complex operation, high maintenance cost and difficulty in dealing with large-area water body treatment, are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of biological prevention and control technology by combining hydraulic engineering fluid mechanics and environmental protection technology, and particularly relates to a water curtain type forced turbulent device for killing pests in a water body. BACKGROUND

[0002] In the operation and management of large-scale water conservancy projects, the problem of the attachment of zebra mussels has become a universal challenge worldwide, especially in structures such as river channels, channels and aqueducts with greater water flow, the reproduction and spread of zebra mussels are extremely fast. Freshwater zebra mussels, which are originally from China, have caused serious fouling problems in many water conservancy projects. In water transfer projects, the attachment of zebra mussels not only causes mechanical damage to the surface of the facilities, but also can cause pipe blockage and increase water flow resistance, thereby affecting the operation efficiency of the entire water conservancy project. In addition, the massive reproduction of zebra mussels can also cause biological invasion to the water ecosystem of the receiving area, disrupt the ecological balance, and lead to a decrease in the number of other local species in the water body. However, it is difficult to clean zebra mussels once they are attached in large-scale projects due to the difficulty of water shutdown for maintenance. Therefore, effectively preventing and controlling the attachment and spread of zebra mussel larvae in the early stage is the most effective way to solve the zebra mussel fouling problem.

[0003] In related technologies, traditional methods for killing zebra mussel larvae often rely on chemical agents such as chlorides and copper preparations. However, the use of such chemical agents, although effective in killing larvae to some extent, has brought many problems. First, it is difficult to control the amount of chemical agents in large water bodies. In large water bodies, the amount of chemical agents required is large, and due to the limitations of water body diffusion capacity, it is difficult to ensure the residence time and effective concentration of the agents, and it is difficult to accurately control the amount. Second, the use of chemical agents can cause harm to other non-target organisms (such as fish, plankton, etc.), disrupting the ecological balance of the water body. Long-term use can even lead to the extinction of certain species, thereby weakening the self-purification ability of the water body and the integrity of the biological chain. In addition, the killing effect of chemical agents is often significantly affected by environmental factors such as water flow rate, water temperature, and agent concentration, which makes the killing effect unstable and inconsistent, and the treatment efficiency is low, and the resource consumption is huge.

[0004] However, the related art requires a large number of equipment and personnel to complete the delivery and monitoring of chemical agents, which not only increases the operating cost, but also makes it difficult to operate efficiently on a large scale. Especially in the face of large-scale spread of zebra mussel larvae, the existing chemical methods often cannot keep up with the reproduction speed of the larvae, and the prevention and control effect is limited, which needs to be improved. SUMMARY

[0005] The application provides a water curtain type forced turbulent device for killing pests in a water body, to solve the problem that a large number of equipment and personnel are needed to complete the delivery and monitoring of chemical agents in the related art, which not only increases the operating cost, but also makes it difficult to operate efficiently in large-scale application. Especially in the face of large-scale spread of clam larvae, the existing chemical methods are often difficult to keep up with the reproduction speed of the larvae, and the control effect is limited by many factors.

[0006] The first aspect of the application provides a water curtain type forced turbulent method for killing pests in a water body, comprising the following steps: a data acquisition module for acquiring flow fields and turbulent characteristics at different spatial positions, and analyzing the flow fields and the turbulent characteristics to generate at least one turbulent data; a turbulent flow generation module for adjusting the layout form of a jet hole, the power of a water pump and the water spraying height based on the at least one turbulent data, to generate a turbulent flow field and a shear; a turbulent flow control module for injecting a high-pressure water flow into the water body to generate a turbulent water curtain or a strongly disturbed water body that meets a preset requirement, generating a turbulent intensity of the high-pressure water flow according to the turbulent water curtain or the strongly disturbed water body, and destroying the shell and endocyst of pests in the water body based on the turbulent intensity, to kill the pests in the water body.

[0007] Optionally, in one embodiment of the application, it further comprises: a driving member for providing a power source of the high-pressure water flow; a pipeline for arranging a plurality of jet holes to spray water columns according to the jet holes, and generating the turbulent water curtain according to the water columns; a connecting member connected with the driving member and the pipeline for transmitting the high-pressure water flow; a sealing member for sealing the pipeline.

[0008] Optionally, in one embodiment of the application, it further comprises: a monitoring member for monitoring the density information and flow information of the pests on the upstream and downstream of a target section, and determining the flow velocity and flow characteristics of the surrounding water body of at least one killing device, to determine the number of turbulent flows and arrangement parameters according to the density information of the pests, the flow information, the flow velocity and the flow characteristics of the surrounding water body; a generating member for starting the driving member to obtain the high-pressure water flow based on the number of turbulent flows and the arrangement parameters, generating a turbulent jet flow according to the high-pressure water flow, and generating the turbulent water curtain according to the turbulent jet flow.

[0009] Optionally, in one embodiment of the application, it further comprises: a water spraying member arranged at the bottom or sidewall of a channel for spraying pulse water flow to cover the pest attachment area in the water body that meets a preset condition.

[0010] Optionally, in an embodiment of the present application, the turbulence control module is further configured to monitor at least one of turbulence intensity, Reynolds stress and turbulence dissipation rate of the high-pressure water flow, and compare the number and mortality rate of the pests in upstream and downstream samples based on the at least one parameter to generate comparison data.

[0011] Optionally, in an embodiment of the present application, the method further comprises: detecting the actual situation of the pests to generate a detection result; and dynamically adjusting the layout position according to the detection result.

[0012] In a second aspect, an embodiment of the present application provides a water curtain type forced turbulence device for killing pests in a water body, comprising: collecting flow fields and turbulence characteristics at different spatial positions, and analyzing the flow fields and the turbulence characteristics to generate at least one turbulence data; adjusting the layout form of a jet hole, water pump power and water spraying height based on the at least one turbulence data to generate a turbulent flow field and shear; injecting a high-pressure water flow into the water body to generate a turbulent water curtain or a strongly disturbed water body meeting a preset requirement, generating turbulence intensity of the high-pressure water flow according to the turbulent water curtain or the strongly disturbed water body, and destroying shells and endocyst of pests in the water body by using the turbulent flow field and the shear based on the turbulence intensity to kill the pests in the water body.

[0013] Optionally, in an embodiment of the present application, the method further comprises: monitoring density information and water flow information of the pests at upstream and downstream of a target section, and determining flow velocity and water flow characteristics of a surrounding water body of at least one killing device to determine a number of turbulence generators and arrangement parameters according to the density information of the pests, the water flow information, the flow velocity and the water flow characteristics of the surrounding water body; obtaining the high-pressure water flow based on the number of turbulence generators and the arrangement parameters, generating a turbulent jet flow according to the high-pressure water flow, and generating the turbulent water curtain according to the turbulent jet flow.

[0014] Optionally, in an embodiment of the present application, the method further comprises: spraying a pulsed water flow to cover a pest attachment area in the water body meeting a preset condition.

[0015] Optionally, in an embodiment of the present application, the method further comprises: detecting the actual situation of the pests to generate a detection result; and dynamically adjusting the layout position according to the detection result.

[0016] In a third aspect, an embodiment of the present application provides an electronic device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement a water curtain type forced turbulence method for killing pests in a water body as described in the above embodiments.

[0017] The fourth aspect of the present application provides a computer readable storage medium, which stores a computer program. The program is executed by a processor to implement the water curtain forced turbulence method for killing pests in a water body.

[0018] The fifth aspect of the present application provides a computer program product, which stores a computer program. The program is executed by a processor to implement the water curtain forced turbulence method for killing pests in a water body.

[0019] The first aspect of the present application provides a water curtain forced turbulence device suitable for a large range of channels. The device adjusts the height and frequency of water spraying to generate strong shear force and turbulence effect by using water curtain jet, effectively killing the clam larvae in the water body. The water curtain covers a large area of water body and is suitable for facilities with strong flow such as rivers and channels. It can form a continuous and uniform turbulence zone in the water flow, thereby preventing the attachment and spread of clam larvae. The second aspect of the present application establishes a fully automatic and low maintenance clam larvae killing system. The system does not require manual intervention, ensures efficient killing in various complex environments, avoids pollution to the water body and surrounding ecological environment, and is suitable for large-scale water body treatment applications. Thus, the related art needs a large number of equipment and personnel to complete the chemical agent delivery and monitoring, which not only increases the operating cost, but also makes it difficult to operate efficiently in large-scale applications. Especially in the face of large-scale spread of clam larvae, the existing chemical method often cannot keep up with the reproduction speed of the larvae, and the control effect is limited by many factors.

[0020] Additional aspects and advantages of the present application will be made apparent by the following description and the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0021] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0022] Figure 1 A structural schematic diagram of a water curtain forced turbulence device for killing pests in a water body according to an embodiment of the present application;

[0023] Figure 2 A diagram of the fragmentation of a larval shell according to an embodiment of the present application;

[0024] Figure 3a A device schematic diagram of a water curtain forced turbulence device according to an embodiment of the present application;

[0025] Figure 3b An indoor sink test effect diagram of a water curtain forced turbulence device according to an embodiment of the present application;

[0026] Figure 4 Flowchart of a water curtain type forced turbulent device for killing pests in a water body according to an embodiment of the present application;

[0027] Figure 5 Schematic diagram of a water curtain type forced turbulent device for killing pests in a water body according to an embodiment of the present application;

[0028] Figure 6 Device fixing mode diagram according to an embodiment of the present application;

[0029] Figure 7 Flowchart of a water curtain type forced turbulent method for killing pests in a water body according to an embodiment of the present application;

[0030] Figure 8 Structural schematic diagram of an electronic device provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0031] Embodiments of the present application are described in detail below with reference to the accompanying drawings. The same or similar components are denoted by the same or similar reference numerals throughout the drawings. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and should not be understood as limiting the present application.

[0032] A water curtain type forced turbulence device for killing pests in a water body is described below with reference to the accompanying drawings. The related art mentioned in the background art requires a large number of equipment and personnel to complete the delivery and monitoring of chemical agents, which not only increases the operating cost, but also makes it difficult to operate efficiently on a large scale. Especially in the face of large-scale spread of clam larvae, the existing chemical methods often cannot keep up with the reproduction speed of the larvae, and the control effect is limited. The present application provides a water curtain type forced turbulence device for killing pests in a water body. In the device, the first aspect provides a water curtain type forced turbulence device suitable for large-scale channels. The device uses water curtain jet to generate strong shear force and turbulence effect by adjusting the height and frequency of water spraying, effectively killing clam larvae in the water body. The water curtain covers a large area of water body and is suitable for facilities with strong flow such as rivers and channels. It can form a continuous and uniform turbulence zone in the water flow, thereby preventing the attachment and spread of clam larvae. The second aspect of the present application establishes a fully automatic and low maintenance clam larvae killing system. The system does not require manual intervention, ensures efficient killing in various complex environments, avoids pollution to the water body and surrounding ecological environment, and is suitable for large-scale water body treatment applications. Thus, the related art requires a large number of equipment and personnel to complete the delivery and monitoring of chemical agents, which not only increases the operating cost, but also makes it difficult to operate efficiently on a large scale. Especially in the face of large-scale spread of clam larvae, the existing chemical methods often cannot keep up with the reproduction speed of the larvae, and the control effect is limited.

[0033] Specifically, Figure 1 A structure diagram of a water curtain type forced turbulence device for killing pests in a water body provided by the embodiments of the present application.

[0034] As Figure 1 shown, the water curtain type forced turbulence device 10 for killing pests in a water body includes a data acquisition module 100, a turbulence generation module 200, and a turbulence control module 300.

[0035] Specifically, the data acquisition module 100 is used to acquire flow fields and turbulence characteristics at different spatial positions, and analyze the flow fields and turbulence characteristics to generate at least one turbulence data.

[0036] It can be understood that the device preparation stage in the embodiments of the present application includes a series of measurement work before the device is implemented to determine the optimal operating parameters of the water curtain type forced turbulence device 10. The experiment includes the following steps:

[0037] a. Data preparation: Water quality parameters such as water temperature, pH, dissolved oxygen, conductivity, etc. were measured in situ using a YSI EXO multi-parameter water quality analyzer; the morphology and activity of clam larvae were observed under a microscope, and parameters such as larval density, live density, mortality rate, etc. were counted.

[0038] b. Device parameter adjustment: According to the water flow velocity and the distribution of clam larvae, the size, frequency and flow rate of the water spray hole are adjusted to ensure that enough turbulent effect can be generated to destroy the structure of the larvae;

[0039] c. Turbulence effect analysis: By analyzing the effect of water flow turbulence (such as fluid momentum and shear force distribution), it is ensured that the turbulence generated by the device can effectively cover the experimental area.

[0040] In actual execution, the data acquisition module 100 in the embodiment of the application includes devices such as ADV, which is used to collect the flow field and turbulence characteristics at different spatial positions, and to analyze and feedback the flow field and turbulence characteristics to generate at least one turbulence data.

[0041] The turbulence generating module 200 is used to adjust the layout form of the spray hole, the water pump power and the water spray height based on the at least one turbulence data, so as to generate a turbulent flow field and shear.

[0042] It can be understood that the turbulence generation process in the embodiment of the application includes: the water curtain type forced turbulence device 10 drives water flow from the spray hole to form a high kinetic energy water curtain through a water pump, and adjusts the water pump power, the spray hole diameter and the horizontal interval to optimize the turbulence effect of the water flow, so that the turbulence covers the entire water depth range. The water pump power controls the speed and range of the spray water flow, and a higher power increases the kinetic energy of the water flow and enhances the turbulence intensity; the spray hole diameter and horizontal interval determine the flow rate and uniformity of the spray water flow, and reasonable design ensures that the water curtain is uniformly distributed in the water depth direction, avoiding gaps in the turbulence area. The height of the spray water flow is determined by the water pump power and the spray hole design, and the formation of a continuous water curtain can generate a turbulent shear layer in the water body and excite a large number of small-scale vortices, significantly improving the turbulence intensity and coverage. The high-speed injection of the water curtain generates turbulent energy, which is transmitted to the surrounding water, so that the vortices gradually spread to deeper layers, forming a stable turbulent field. Through the regulation of the spray hole interval and the water flow height, the water curtain turbulence effect can uniformly cover the entire water depth, realizing the transmission and diffusion of a strong and extensive turbulent field in the water body.

[0043] The water spray area of the water curtain type forced turbulence device 10 is A = 0.0251 m 2 , the flow rate Q = 300 m 3 / h, the spray hole diameter d = 0.02 m, the hole spacing s = 0.05 m, and the number of holes The outflow flow rate of each hole The outflow flow rate of each hole According to the calculation of 20% turbulent velocity v 紊动 = 0.2 x v 出 = 0.664 m / s

[0044] For the turbulent jet ejected from the circular hole, the turbulent field diffusion range R of each hole is estimated by the empirical formula 紊动 ≈ 0.20 m, that is, the jet radius R is about 0.2 m, the turbulent effect affects the range with a radius of 0.2 m, which is greater than the hole spacing and can completely cover.

[0045] In actual execution, the embodiment of the present application can adjust the layout form of the ejection hole, the water pump power and the water spraying height based on at least one turbulent data by using the turbulent generation module 200, such as the ejection diameter, the horizontal interval, etc., adjust the water spraying height, so that the effect covers the entire water depth range, to generate a turbulent flow field and shear, and enhance the turbulent flow field.

[0046] In the process of killing the clam larvae, the primary task is to ensure that the pulsed jet flow can generate sufficient shear force and turbulent effect to provide support for subsequent destruction of the soft shell and endocyst of the larvae. The water spraying height and jet angle can be controlled by adjusting the working frequency of the water pump, the diameter of the ejection hole, the horizontal and vertical interval, to generate appropriate turbulent water flow and shear, thereby significantly enhancing the turbulent effect and flow velocity intensity in the target water body, and further destroying the shell and endocyst of the larvae to achieve the purpose of killing.

[0047] The turbulent control module 300 is used for injecting high-pressure water flow into the water body to generate a turbulent water curtain or a strongly disturbed water body meeting the preset requirements, generating the turbulent intensity of the high-pressure water flow according to the turbulent water curtain or the strongly disturbed water body, and destroying the shell and endocyst of the pests in the water body by using the turbulent flow field and shear based on the turbulent intensity, to kill the pests in the water body.

[0048] It can be understood that the verification and debugging of the turbulent effect in the embodiment of the present application include: to ensure the stability and effectiveness of the killing effect, the device verifies and debugs the turbulent effect after installation.

[0049] a. Performance test: test points are set in the experimental water body, the survival rate change of the clam larvae in the turbulent range is observed, the killing effect is evaluated, and the performance is further improved by modifying the parameters.

[0050] b. Killing effect analysis: during the verification process, the Kappa coefficient and F1 value are used to evaluate the accuracy of the killing effect. By adjusting the turbulent intensity and duration, the large-scale killing of the larvae can be realized under the premise of avoiding pollution to the environment.

[0051] In actual implementation, the pests in the embodiments of the present application can be juvenile clams, and the embodiments of the present application can inject a high-pressure water flow into the water body to generate a turbulent water curtain or a strongly disturbed water body meeting preset requirements, and generate a turbulent intensity of the high-pressure water flow according to the turbulent water curtain or the strongly disturbed water body, thereby significantly enhancing the turbulent intensity in the water body. As shown in FIG. 8, the embodiments of the present application can utilize the turbulent flow field and shear to destroy the shell and endocyst of the pests in the water body, so as to kill the pests in the water body, adapt to different killing requirements, and achieve a killing effect. Figure 2

[0052] The embodiments of the present application generate great shear force through turbulent flow, act on the shell and endocyst of the juvenile clams, destroy the physiological structure thereof, and finally achieve the purpose of efficient killing. Compared with the traditional chemical agent method, the physical killing device has multiple advantages. It avoids pollution of the water body and the surrounding ecological system caused by the chemical agent, reduces damage to non-target organisms, and maintains the natural balance of the water body ecology. Secondly, the pulsating jet design adopted by the device can realize effective killing under different water flow conditions by flexibly adjusting the water injection parameters, thereby ensuring that the adaptability and killing effect of the device remain consistent in various complex environments. In addition, the operation and maintenance cost of the device is low, and it is suitable for long-term management of large-area water bodies. The device is suitable for channels with high risk of juvenile clam attachment, can effectively control the density of juvenile clams, prevent the juvenile clams from attaching to the engineering surface, and reduce the risk of juvenile clam transport to the downstream. This physical killing method not only can reduce the maintenance and cleaning cost of the facility, but also can ensure the sustainability and efficiency of large-scale water body management without damaging the ecological system of the water body.

[0053] Optionally, in an embodiment of the present application, the turbulent flow control module 300 is further used to monitor at least one parameter of the turbulent intensity, the Reynolds stress and the turbulent dissipation rate of the high-pressure water flow, and compare the number and mortality rate of the pests in the upstream and downstream samples based on the at least one parameter to generate comparison data.

[0054] In the embodiments of the present application, juvenile samples in the upstream and downstream water bodies can be collected during the killing process, and parameters such as the turbulent intensity, the Reynolds stress and the turbulent dissipation rate of the water flow are monitored in real time by using acoustic equipment. By comparing the number and mortality rate of the juvenile samples in the upstream and downstream, comparison data are generated to verify the killing effect of the device. If necessary, the injection aperture, the injection frequency or the water pump power can be manually adjusted to optimize the killing effect and ensure stable operation of the device under different water flow and environmental conditions.

[0055] ​The embodiment of the present application can adjust the device according to the pre-design calculation result to obtain the required turbulent intensity, set sampling points on the upstream and downstream of the device to count the number of larvae and the mortality rate, and adjust the device parameters according to the data to optimize the killing effect.

[0056] Optionally, in an embodiment of the present application, the water curtain type forced turbulent device 10 for killing pests in a water body further comprises: a driving member for providing a power source of high-pressure water flow; a pipeline for arranging a plurality of jet holes to spray water columns according to the jet holes and generate turbulent water curtains according to the water columns; a connecting member connected with the driving member and the pipeline for transmitting high-pressure water flow; and a sealing member for sealing the pipeline.

[0057] It can be understood that, as shown in Figure 3a and Figure 3b , the driving member in the embodiment of the present application can be a water pump, the pipeline can be a polyethylene (PE) pipeline, the connecting member can be a connecting flange, and the sealing member can be a head. The water curtain type forced turbulent device comprises a water pump, a connecting flange, a polyethylene (PE) pipeline and a head. The water pump is a three-phase 380V voltage pump with a power of 7.5kw, a flow of 300m 3 / h, a lift of 10m, the pipeline is punched to arrange jet holes with a hole diameter of 50mm and a spacing of 50mm.

[0058] In actual execution, the embodiment of the present application can provide a power source of high-pressure water flow by a water pump, punch the pipeline to arrange jet holes to spray water columns according to the jet holes and generate turbulent water curtains according to the water columns. The connecting flange in the embodiment of the present application is connected with the water pump and the pipeline for transmitting high-pressure water flow, and the head is used for sealing the pipeline.

[0059] The embodiment of the present application can arrange jet holes in the pipeline at the bottom of the channel to spray water columns into the water to form a water curtain, thereby having the potential to kill the larvae of the clam.

[0060] Optionally, in an embodiment of the present application, the water curtain type forced turbulent device 10 for killing pests in a water body further comprises: a monitoring member for monitoring the density information and the flow information of the pests on the upstream and downstream of the target section, and determining the flow velocity and the flow characteristics of the surrounding water body of at least one killing device, to determine the number of turbulent flows and the arrangement parameters according to the density information of the pests, the flow information, the flow velocity and the flow characteristics of the surrounding water body; a generating member for starting the driving member to obtain high-pressure water flow based on the number of turbulent flows and the arrangement parameters, generating turbulent jets according to the high-pressure water flow, and generating turbulent water curtains according to the turbulent jets.​

[0061] It can be understood that at least one killing device in the embodiments of the present application is arranged in the channel, thereby providing support for being able to generate suitable pulsating jet intensity and frequency by adjusting the size, spacing or water pump power of the water spraying hole.

[0062] The turbulent performance detection and analysis method in the embodiments of the present application comprises: in the running process of the above-mentioned device, the ADV is also used to measure the water flow velocity time sequence at different spatial positions. The measuring point is 5 cm away from the ADV probe in a straight line to weaken the influence of the probe on the water flow disturbance of the measuring point, the sampling frequency is set to 100 Hz, and the single-point sampling time is 4 min.

[0063] When measuring the flow velocity, the ADV is fixed on a self-made moving support, the support is provided with a guide rail with a bearing sliding block, the ADV body can be fixed to a depth ruler (with an accuracy of 0.1 mm) and can be vertically moved along the depth ruler, the depth ruler is fixed on the sliding block, so that the ADV probe can be transversely moved along the support guide rail (provided with a level ruler with an accuracy of 1 mm). Through the combination of movements, the position of the ADV probe can be accurately determined.

[0064] Exemplarily, the ADV data needs to be preprocessed, the data with SNR < 20 and COR < 70 needs to be removed, the burr data needs to be removed by using the sampling phase space threshold method, and the data needs to be denoised. Based on the ADV preprocessed data, the time-averaged flow velocity field and the corresponding turbulent parameters (Reynolds stress, turbulent intensity, turbulent total energy TKE, turbulent dissipation rate, energy spectrum, etc.) distribution at each measuring point are calculated, and the energy spectrum of each measuring point is further calculated.

[0065] The effective working water body range under different working parameters is compared and analyzed; the turbulent performance difference under the influence of different arrangement modes is compared and analyzed, and the key killing parameters such as the proportion of high-frequency pulsation, the contribution rate of three-dimensional turbulent intensity and the turbulent structure characteristic scale are analyzed; the turbulent performance difference under the influence of different flow rates is compared and analyzed, and the key killing parameters such as the proportion of high-frequency pulsation, the contribution rate of three-dimensional turbulent intensity and the turbulent structure characteristic scale are analyzed.

[0066] The larva density is observed at the upstream and downstream of the target section in the water curtain type forced turbulent device, and the arrangement parameters required to achieve the best killing effect are determined.

[0067] As a possible implementation manner, as shown in Figure 4 and Figure 5 The embodiments of the present application can utilize the monitoring member to monitor the density information and flow information of the pests at the upstream and downstream of the target section, and determine the flow velocity and flow characteristics of the water body around the killing device, so as to determine the number of turbulent flows and arrangement parameters required to achieve the best killing effect according to the density information of the pests, the flow information, the flow velocity and the flow characteristics of the surrounding water body.

[0068] Further, the embodiment of the present application continuously arranges a plurality of killing devices along the water flow direction of the target section, and the segmented arrangement of the devices ensures that the turbulent effect of the water flow after the devices are opened can cover the entire water body range, and a water pump can be started to obtain high-pressure water flow, the water flow enters the jet holes through the pipeline and forms turbulent jet flow in the water body, and a strong turbulent water curtain is formed in the water body.

[0069] The embodiment of the present application can adjust the turbulent parameters of the device system in combination with the water flow information, clam mussel larva density data and related water quality parameters of the target water body area, so as to adapt to different water body conditions. The data sources can include flow measuring instruments, ADV (acoustic Doppler velocimeter) and other sensing devices.

[0070] Optionally, in an embodiment of the present application, the water curtain type forced turbulent device 10 for killing pests in a water body further includes: a water spraying member arranged at the bottom or side wall of the channel, used for spraying pulse water flow to cover the pest attachment area in the water body that meets the preset condition.

[0071] It can be understood that the water spraying member in the embodiment of the present application is a water spraying device; the water spraying area of the water curtain type forced turbulent device 10 is 0.0251m 2 .

[0072] In actual execution process, the water spraying device in the embodiment of the present application can be arranged at the bottom or side wall of the channel, used for spraying pulse water flow to cover the area where the clam mussel larvae may attach in the water body.

[0073] The embodiment of the present application can select different pulsation parameters according to the water flow conditions and needs, so as to ensure that the killing effect covers the entire water body range, while avoiding pollution to the water body and the surrounding ecological environment.

[0074] Optionally, in an embodiment of the present application, the water curtain type forced turbulent device 10 for killing pests in a water body further includes: a detection member used for detecting the actual situation of the pests to generate a detection result; and an adjustment member used for dynamically adjusting the arrangement position according to the detection result.

[0075] It can be understood that, as Figure 6 shown, the fixing mode of the water curtain type forced turbulent device 10 is to fix the device on the cross beam with the orifice facing the downstream direction.

[0076] In actual execution process, the embodiment of the present application can arrange the water curtain type forced turbulent device 10 in the area where the clam mussels attach most seriously, use the detection member to detect the actual situation of the pests to generate a detection result, and use the adjustment member to dynamically adjust the arrangement position according to the detection result, such as the trash rack is usually installed below the water level rise area and above the water intake position.

[0077] The practical application and large-scale promotion in the present application include: the application of the water curtain type forced turbulent device 10 in a large area of water has been verified. Experimental data show that the device can effectively inhibit the growth of clam larvae and significantly reduce the spread of the larvae downstream. In practical application, the device can adjust parameters according to different water conditions to adapt to various flow environments, achieve large-scale clam killing, and is especially suitable for key water conservancy facilities such as reservoirs and aqueducts. Through linkage with the monitoring system, the device can realize real-time monitoring and rapid treatment of clam larvae in the water body.

[0078] Embodiment 1

[0079] A killing device prototype was installed at the downstream gate slot of three branch channels of a certain aqueduct. 200L raw water was collected before and after the prototype was started, and the density and mortality of clam larvae were observed on site.

[0080] Table 1 shows the effect of on-site monitoring of clam larvae density before and after the water curtain type forced turbulent device prototype is started. Among them, the natural mortality rate before the prototype 1 is started is 68%, and the mortality rates of the low-frequency and high-frequency groups after the prototype is started are both 100%, indicating that both types of turbulent enhanced frequency can effectively kill the larvae. From the perspective of fully utilizing energy, the effect of low-frequency operation can be further tested.

[0081] Table 1

[0082]

[0083] According to the water curtain type forced turbulent device for pest killing in a water body proposed in the embodiments of the present application, a first aspect provides a water curtain type forced turbulent device suitable for a large area in a channel. The device uses water curtain jet to generate strong shear force and turbulent effect by adjusting the height and frequency of water spraying, effectively killing clam larvae in the water body. The water curtain covers a large area of water and is suitable for facilities such as rivers and channels with strong flow, which can form a continuous and uniform turbulent zone in the water flow, thereby preventing the attachment and spread of clam larvae. The second aspect of the present application establishes a fully automatic and low-maintenance clam larvae killing system. The system does not require manual intervention, ensures efficient killing in various complex environments, avoids pollution to the water body and surrounding ecological environment, and is suitable for large-scale water body management applications. Thus, the related art problem that a large number of equipment and personnel are needed to complete the chemical agent delivery and monitoring, which not only increases the operating cost but also makes it difficult to efficiently operate in large-scale applications, is solved. Especially in the face of large-scale spread of clam larvae, the existing chemical method often lags behind the reproduction speed of the larvae, and the control effect is limited.

[0084] Secondly, a water curtain type forced turbulent method for pest killing in a water body according to the embodiments of the present application is described with reference to the accompanying drawings.

[0085] Figure 7 is a flowchart of a water curtain type forced turbulence method for killing pests in a water body according to an embodiment of the present application.

[0086] As shown in Figure 7 , the water curtain type forced turbulence method for killing pests in a water body comprises the following steps:

[0087] In step S701, flow fields and turbulence characteristics at different spatial positions are collected, and the flow fields and turbulence characteristics are analyzed to generate at least one turbulence data.

[0088] In step S702, based on the at least one turbulence data, the arrangement form of the jet hole, the water pump power and the water jet height are adjusted to generate a turbulent flow field and shear.

[0089] In step S703, high-pressure water flow is injected into the water body to generate a turbulent water curtain or a strongly disturbed water body that meets the preset requirements, the turbulence intensity of the high-pressure water flow generated according to the turbulent water curtain or the strongly disturbed water body, and based on the turbulence intensity, the shell and the endocyst of the pests in the water body are destroyed by using the turbulent flow field and the shear to kill the pests in the water body.

[0090] Optionally, in an embodiment of the present application, it further comprises: monitoring the density information and the flow information of the pests at the upstream and downstream of the target section, and determining the flow velocity and the flow characteristics of the surrounding water body of the at least one killing device, to determine the number of turbulence generation and arrangement parameters according to the density information, the flow information of the pests, the flow velocity and the flow characteristics of the surrounding water body; based on the number of turbulence generation and arrangement parameters, obtaining high-pressure water flow, generating turbulent jet flow according to the high-pressure water flow, and generating a turbulent water curtain according to the turbulent jet flow.

[0091] Optionally, in an embodiment of the present application, it further comprises: spraying pulse water flow to cover the pest attachment area in the water body that meets the preset conditions.

[0092] Optionally, in an embodiment of the present application, it further comprises: detecting the actual situation of the pests to generate a detection result; and dynamically adjusting the arrangement position according to the detection result.

[0093] It should be noted that the foregoing explanation and description of the embodiment of the water curtain type forced turbulence device for killing pests in a water body also applies to the embodiment of the water curtain type forced turbulence method for killing pests in a water body, which will not be described here.

[0094] According to the water curtain type forced turbulence method for killing pests in a water body provided by the embodiment of the application, a first aspect provides a water curtain type forced turbulence device suitable for a large range of channels. The device uses water curtain jets to generate strong shear force and turbulence effect by adjusting the height and frequency of water spraying, and effectively kills clam larvae in the water body. The water curtain covers a large area of water body, is suitable for facilities such as channels and rivers with strong flow, can form a continuous and uniform turbulence zone in the water flow, and thus prevents the attachment and spread of clam larvae. A second aspect of the application establishes a full-automatic and low-maintenance clam larvae killing system. The system does not require manual intervention, ensures efficient killing in various complex environments, avoids pollution to the water body and the surrounding ecological environment, and is suitable for large-scale water body treatment applications. Thus, the problem that a large number of equipment and personnel are needed to complete the chemical agent delivery and monitoring in the related art is solved, the operation cost is increased, and efficient operation in large-scale application is difficult. Especially when facing large-scale spread of clam larvae, the existing chemical method is often difficult to keep up with the reproduction speed of the larvae, and the prevention and control effect is limited.

[0095] Figure 8 The structure schematic diagram of the electronic device provided by the embodiment of the application is provided. The electronic device can include:

[0096] The memory 801, the processor 802, and the computer program stored in the memory 801 and executable on the processor 802.

[0097] The processor 802 implements the water curtain type forced turbulence method for killing pests in a water body provided by the embodiment of the application when executing the program.

[0098] Further, the electronic device further includes:

[0099] The communication interface 803 is used for communication between the memory 801 and the processor 802.

[0100] The memory 801 is used to store the computer program executable on the processor 802.

[0101] The memory 801 can include a high-speed RAM memory, and can also include a non-volatile memory such as at least one disk memory.

[0102] If the memory 801, the processor 802 and the communication interface 803 are implemented independently, the communication interface 803, the memory 801 and the processor 802 can be connected with each other through a bus and complete communication between each other. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For convenience of representation, Figure 8 Only one thick line is used to represent the bus in the figure, but it does not mean that there is only one bus or only one type of bus.

[0103] Optionally, in a specific implementation, if the memory 801, the processor 802 and the communication interface 803 are integrated on a chip, the memory 801, the processor 802 and the communication interface 803 can complete communication between each other through an internal interface.

[0104] The processor 802 can be a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement one or more embodiments of the present application.

[0105] The embodiment also provides a computer readable storage medium, which stores a computer program, and the program is executed by a processor to implement the water curtain type forced turbulent method for killing pests in a water body.

[0106] The embodiment of the present application also provides a computer program product, which stores a computer program, and the program is executed by a processor to implement the water curtain type forced turbulent method for killing pests in a water body.

[0107] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", 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 application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or N embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0108] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this application, "N" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0109] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or N executable instructions for implementing a custom logical function or process step, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may be performed in a different order than shown or discussed, including performing functions in a substantially simultaneous manner or in a reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present application pertain.

[0110] The logic and / or steps represented in the flowcharts and / or described herein, for example, can be considered as a sequence of executable instructions stored in a computer readable medium, which can be executed by an instruction execution system, apparatus or device, such as a computer-based system, a processor-based system, or other system that can fetch the instructions from the instruction execution system, apparatus or device and execute the instructions, or a combination of them. For the purposes of this specification, a "computer readable medium" can be any apparatus that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus or device. The computer readable medium can be a computer readable storage medium or a computer readable signal medium. The computer readable storage medium can include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a propagation medium. The computer readable signal medium can include, but is not limited to, a computer readable medium that facilitates transfer of the program from one place to another. A specific example of a computer readable medium is a non-transitory computer-readable storage medium. A specific example of a computer readable signal medium is a source or destination of the computer readable medium. Another specific example of a computer readable signal medium is a computer readable signal travelling through space. Thus, a computer readable medium can take many forms of hardware to carry out the program for use by or in connection with the instruction execution system, apparatus or device.

[0111] It should be understood that aspects of the application can be implemented in hardware, software, firmware or combinations thereof. In the above embodiments, the N steps or methods can be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. As such, if implemented in hardware, and in another embodiment, any of the following technologies, known in the art, or their combinations can be used: discrete logic circuitry having logic gates for implementing logic functions on data signals, application specific integrated circuits having appropriate combinational logic gates, programmable gate arrays (PGA), field programmable gate arrays (FPGA), and the like.

[0112] Those skilled in the art can understand that all or part of the steps carried out by the above-mentioned embodiment methods can be completed by programs instructing related hardware, and the programs can be stored in a computer readable storage medium. When the programs are executed, one or a combination of the steps of the method embodiments is included.

[0113] In addition, each of the functional units in the various embodiments of the present application can be integrated in one processing module, or each of the units can be physically present separately, or two or more units can be integrated in one module. The integrated module can be implemented in the form of hardware or in the form of a software functional module. When the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it can also be stored in a computer readable storage medium.

[0114] The storage medium mentioned above can be a read-only memory, a magnetic disk or an optical disk, etc. Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A water curtain type forced turbulent flow device for killing pests in a water body, characterized by, The device comprises: a data collection module for collecting flow field and turbulence characteristics at different spatial positions, and analyzing the flow field and the turbulence characteristics to generate at least one turbulence data; a turbulence generation module for adjusting the layout form of the injection hole, the water pump power and the water injection height based on the at least one turbulence data, to generate a turbulent flow field and a shear; a turbulence control module for injecting a high-pressure water flow into the water body to generate a turbulent water curtain or a strongly disturbed water body meeting the preset requirements, generating a turbulence intensity of the high-pressure water flow according to the turbulent water curtain or the strongly disturbed water body, and destroying the shell and endocyst of pests in the water body by using the turbulent flow field and the shear based on the turbulence intensity, to kill the pests in the water body; wherein, further comprising: a monitoring member for monitoring the density information and flow information of the pests at the upstream and downstream of the target section, and determining the flow velocity and flow characteristics of the surrounding water body of at least one killing device, to determine the turbulence generation quantity and arrangement parameters according to the density information of the pests, the flow information, the flow velocity and the flow characteristics of the surrounding water body; a generating member for obtaining the high-pressure water flow based on the turbulence generation quantity and the arrangement parameters, generating a turbulent jet flow according to the high-pressure water flow, and generating the turbulent water curtain according to the turbulent jet flow.

2. A water curtain type forced turbulent motion device for killing pests in a water body according to claim 1, characterized in that, Further comprising: a driving member for providing a power source of the high-pressure water flow; a pipeline for arranging a plurality of injection holes to spray water columns according to the injection holes, and generating the turbulent water curtain according to the water columns; a connecting member connected with the driving member and the pipeline for transmitting the high-pressure water flow; a closing member for closing the pipeline.

3. A water curtain type forced turbulent motion apparatus for killing pests in a water body according to claim 1, characterized in that, Further comprising: a water spraying member arranged at the bottom or sidewall of the channel for spraying pulse water flow to cover the pest attachment area in the water body meeting the preset conditions.

4. The water curtain type forced turbulent flow device for killing pests in a water body according to claim 1, wherein The turbulence control module is further used for monitoring at least one parameter of the turbulence intensity, Reynolds stress and turbulence dissipation rate of the high-pressure water flow, and comparing the number and mortality rate of the pests in the upstream and downstream samples based on the at least one parameter to generate comparison data.

5. The water curtain type forced turbulent motion apparatus for killing pests in a water body according to claim 1, wherein Further comprising: a detecting member for detecting the actual situation of the pests to generate a detection result; an adjusting member for dynamically adjusting the arrangement position according to the detection result.

6. A water curtain type forced turbulent flow method for killing pests in a water body, characterized by, A water curtain type forced turbulence device for killing pests in a water body is adopted, comprising the following steps: collecting flow field and turbulence characteristics at different spatial positions, and analyzing the flow field and the turbulence characteristics to generate at least one turbulence data; adjusting the layout form of the injection hole, the water pump power and the water injection height based on the at least one turbulence data, to generate a turbulent flow field and a shear; injecting a high-pressure water flow into the water body to generate a turbulent water curtain or a strongly disturbed water body meeting the preset requirements, generating a turbulence intensity of the high-pressure water flow according to the turbulent water curtain or the strongly disturbed water body, and destroying the shell and endocyst of pests in the water body by using the turbulent flow field and the shear based on the turbulence intensity, to kill the pests in the water body; The method further comprises: monitoring density information and flow information of the pests upstream and downstream of the target section, and determining flow velocity and flow characteristics of the surrounding water body operated by at least one killing device, so as to determine a turbulence generation quantity and arrangement parameters according to the density information of the pests, the flow information, the flow velocity of the surrounding water body and the flow characteristics; and obtaining the high-pressure water flow based on the turbulence generation quantity and the arrangement parameters, generating turbulent jets according to the high-pressure water flow, and generating the turbulent water curtain according to the turbulent jets.

7. An electronic device, comprising: The method comprises: A memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor executes the program to implement the method for killing pests in a water body by a water curtain type forced turbulence according to claim 6.

8. A computer-readable storage medium having stored thereon a computer program, characterized in that, The program is executed by the processor to implement the method for killing pests in a water body by a water curtain type forced turbulence according to claim 6.

9. A computer program product comprising a computer program, characterized in that, The computer program is executed to implement the method for killing pests in a water body by a water curtain type forced turbulence according to claim 6.

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