Water curtain type forced turbulence device for killing pests in water body

Abstract

The invention relates to a water curtain type forced turbulent fluctuation device for killing pests in a water body, and the device comprises a data collection module which is used for collecting flow field and turbulent fluctuation characteristics of different spatial positions, and analyzing the flow field and turbulent fluctuation characteristics to generate at least one piece of turbulent fluctuation data; the turbulent flow generation module is used for adjusting the arrangement form of the jet holes, the power of a water pump and the water spraying height so as to generate a turbulent flow field and shear; the turbulent flow control module is used for injecting high-pressure water flow into the water body so as to generate a turbulent water curtain or a strong disturbance water body meeting preset requirements, generating turbulent flow intensity of the high-pressure water flow according to the turbulent water curtain or the strong disturbance water body, and utilizing a turbulent flow field and shearing to damage shells and inner bags of pests in the water body based on the turbulent flow intensity so as to kill the pests in the water body. Therefore, the problems of serious pollution, low efficiency, complicated operation, high maintenance cost and difficulty in large-area water body treatment of the existing method for killing the larvae of the macrobrachium cornutum are solved.

Description

Technical Field

[0001] The present application relates to the field of biological control technology using a combination of hydraulic engineering fluid mechanics and environmental protection technology, and in particular to a water curtain type forced turbulence device for killing pests in water bodies. Background Art

[0002] In the operation and management of large-scale water conservancy projects, the problem of fouling mussel attachment has become a common challenge worldwide, especially in structures such as rivers, channels, aqueducts, etc. with high water flow, where mussels reproduce and spread very quickly. The freshwater mussel, Marsh clams, native to my country, have caused serious fouling problems in many water conservancy projects. In water diversion projects, the attachment of Marsh clams will not only cause mechanical damage to the surface of the facilities, but may also cause pipe blockage and increased water flow resistance, thereby affecting the operation efficiency of the entire water conservancy project. In addition, the large-scale reproduction of Marsh clams may also cause biological invasion of the aquatic ecosystem in the receiving area, destroy the ecological balance, and lead to a decrease in the number of other native species in the water body. However, it is difficult to stop water for maintenance in large-scale projects, and it is difficult to clean up Marsh clams once they are attached. Therefore, effectively preventing and controlling the attachment and spread of Marsh clam larvae in the early stages is the most effective way to solve Marsh clam fouling.

[0003] In the related art, traditional methods for killing larvae of swamp clams mostly rely on chemical agents, such as chlorides and copper preparations. However, although such chemical agents can effectively kill larvae to a certain extent, their use also brings many problems. First, the amount of chemical agents applied in large water bodies is difficult to control. The amount of chemical agents required for placing chemical agents in large water bodies is large, and it is difficult to ensure the residence time and effective concentration of the agents due to the limitations of the diffusion capacity of the water body, and it is difficult to accurately control the dosage. Secondly, the use of chemical agents may cause harm to other non-target organisms (such as fish, plankton, etc.) and destroy the ecological balance of the water body. Long-term use may even lead to the extinction of certain species, thereby weakening the self-purification ability of the water body and the integrity of the food chain. In addition, the killing effect of chemical agents is often significantly affected by environmental factors such as water flow velocity, water temperature, and agent concentration, which makes its killing effect unstable and inconsistent, and the processing efficiency is low, and the resource consumption is huge.

[0004] However, the relevant technology requires a large amount of equipment and personnel to complete the placement and monitoring of chemical agents, which not only increases operating costs, but also makes it difficult to operate efficiently when applied on a large scale. Especially when facing the spread of large-scale larvae of the marsh clam, the existing chemical methods are often unable to keep up with the reproduction speed of the larvae, and the prevention and control effects are subject to many limitations and urgently need to be improved. Summary of the invention

[0005] The present application provides a water curtain type forced turbulence device for killing pests in water bodies, so as to solve the problem that the related technology requires a large amount of equipment and personnel to complete the placement and monitoring of chemical agents, which not only increases the operating cost, but also makes it difficult to operate efficiently when applied on a large scale. Especially when facing the spread of large-scale swamp clam larvae, the existing chemical methods are often difficult to keep up with the reproduction speed of the larvae, and the prevention and control effect is subject to many limitations.

[0006] The first aspect of the present application provides a water curtain type forced turbulence method for killing pests in water bodies, comprising the following steps: a data acquisition module, used to collect flow fields and turbulence characteristics at different spatial positions, and analyze the flow fields and the turbulence characteristics to generate at least one turbulence data; a turbulence generation module, used to adjust the layout of the injection holes, the water pump power and the water spray height based on the at least one turbulence data to generate a turbulent flow field and shear; a turbulence control module, used to inject high-pressure water flow into the water body to generate a turbulent water curtain or a strongly disturbed water body that meets preset requirements, generate the turbulence intensity of the high-pressure water flow according to the turbulent water curtain or the strongly disturbed water body, and based on the turbulence intensity, use the turbulent flow field and the shear to destroy the shells and inner capsules of pests in the water body to kill the pests in the water body.

[0007] Optionally, in one embodiment of the present application, it also includes: a driving member, used to provide a power source for the high-pressure water flow; a pipeline, used to arrange a plurality of spray holes to spray water columns according to the spray holes, and generate the turbulent water curtain according to the water columns; a connecting member, the connecting member is connected to the driving member and the pipeline, and is used to transmit the high-pressure water flow; a closing member, used to close the pipeline.

[0008] Optionally, in one embodiment of the present application, it also includes: a monitoring component, which is used to monitor the density information and water flow information of the pests upstream and downstream of the target section, and determine the flow velocity and water flow characteristics of the water body around which at least one killing device is running, so as to determine the number of turbulence generated and the layout parameters based on the density information of the pests, the water flow information, the flow velocity of the surrounding water body and the water flow characteristics; a generating component, which is used to start the driving component based on the number of turbulence generated and the layout parameters to obtain the high-pressure water flow, generate a turbulent jet according to the high-pressure water flow, and generate the turbulent water curtain according to the turbulent jet.

[0009] Optionally, in one embodiment of the present application, it further includes: a water spraying member, which is arranged at the bottom or side wall of the channel and is used to spray pulsed water flow to cover the pest attachment area in the water body that meets preset conditions.

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

[0011] Optionally, in one embodiment of the present application, it further includes: a detection component, used to detect the actual situation of the pests to generate a detection result; and an adjustment component, used to dynamically adjust the deployment position according to the detection result.

[0012] The second aspect of the present application provides a water curtain type forced turbulence device for killing pests in water bodies, including: 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; based on the at least one turbulence data, adjusting the layout of the injection holes, the water pump power and the water spraying height to generate a turbulent flow field and shear; injecting high-pressure water flow into the water body to generate a turbulent water curtain or a strongly disturbed water body that meets 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 based on the turbulence intensity, using the turbulent flow field and the shear to destroy the shells and inner capsules of pests in the water body to kill the pests in the water body.

[0013] Optionally, in one embodiment of the present application, it also includes: monitoring the density information and water flow information of the pests upstream and downstream of the target section, and determining the flow velocity and water flow characteristics of the water body around which at least one killing device is operating, so as to determine the number of turbulence generated and the layout parameters based on the density information of the pests, the water flow information, the flow velocity of the surrounding water body and the water flow characteristics; based on the number of turbulence generated and the layout parameters, obtaining the high-pressure water flow, generating a turbulent jet based on the high-pressure water flow, and generating the turbulent water curtain based on the turbulent jet.

[0014] Optionally, in one embodiment of the present application, it further includes: spraying pulsed water flow to cover the pest attachment area in the water body that meets preset conditions.

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

[0016] The third aspect 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 water as described in the above embodiment.

[0017] The fourth aspect of the present application provides a computer-readable storage medium, which stores a computer program. When the program is executed by a processor, it implements the above-mentioned water curtain type forced turbulence method for killing pests in water.

[0018] The fifth aspect of the present application provides a computer program product, which stores a computer program. When the program is executed by a processor, it implements the above-mentioned water curtain type forced turbulence method for killing pests in water.

[0019] The first aspect of the present application provides a water curtain type forced turbulence device suitable for a large range in a channel. The device uses a water curtain jet to generate strong shear force and turbulence effect by adjusting the height and frequency of the water spray, and effectively kills the larvae of the marsh clam 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 fluidity. It can form a continuous and uniform turbulence zone in the water flow, thereby preventing the attachment and spread of the marsh clam larvae. The second aspect of the present application establishes a set of fully automatic, low-maintenance marsh clam larvae killing system, which does not require human intervention, ensures efficient killing in various complex environments, and avoids pollution to the water body and the surrounding ecological environment, and is suitable for large-scale water body management applications. Thus, the relevant technology solves the problem that a large amount of equipment and personnel are required to complete the delivery and monitoring of chemical agents, which not only increases the operating cost, but also makes it difficult to operate efficiently when applied on a large scale. Especially in the face of a large-scale spread of marsh clam larvae, existing chemical methods are often difficult to keep up with the reproduction speed of the larvae, and the prevention and control effect is subject to many restrictions.

[0020] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0022] Figure 1 It is a schematic structural diagram of a water curtain type forced turbulence device for killing pests in water provided in an embodiment of the present application;

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

[0024] Figure 3a This is a schematic diagram of a water curtain type forced turbulence device according to one embodiment of the present application;

[0025] Figure 3b This is a test effect diagram of an indoor water tank of a water curtain type forced turbulence device according to one embodiment of the present application;

[0026] Figure 4 This is a schematic diagram of a process of a water curtain type forced turbulence device for killing pests in water according to one embodiment of the present application;

[0027] Figure 5 This is a schematic diagram of a water curtain type forced turbulence device for killing pests in water according to one embodiment of the present application;

[0028] Figure 6 A diagram showing a device fixing method according to an embodiment of the present application;

[0029] Figure 7 A flow chart of a water curtain type forced turbulence method for killing pests in water provided according to an embodiment of the present application;

[0030] Figure 8 It is a schematic diagram of the structure 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, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0032] The following is a description of a water curtain type forced turbulence device for killing pests in water bodies according to an embodiment of the present application with reference to the accompanying drawings. The related technologies mentioned in the above background technology require a large amount of equipment and personnel to complete the placement and monitoring of chemical agents, which not only increases the operating cost, but also makes it difficult to operate efficiently when applied on a large scale. Especially when facing the spread of large-scale marsh clam larvae, the existing chemical methods are often difficult to keep up with the reproduction speed of the larvae, and the prevention and control effects are subject to many restrictions. The present application provides a water curtain type forced turbulence device for killing pests in water bodies. In the device, a first aspect provides a water curtain type forced turbulence device suitable for a large range in a channel. The device adjusts the height and frequency of the water spray, and uses the water curtain jet to generate strong shear force and turbulence effect, effectively killing the marsh clam larvae in the water body. The water curtain covers a large area of ​​water, is suitable for facilities such as rivers and channels with strong fluidity, and can form a continuous and uniform turbulence zone in the water flow, thereby preventing the attachment and spread of marsh clam larvae. The second aspect of this application establishes a set of fully automatic, low-maintenance marsh clam larvae killing system, which does not require human intervention, ensures efficient killing in various complex environments, and avoids pollution to the water body and the surrounding ecological environment, and is suitable for large-scale water body management applications. Thus, it solves the problem that the relevant technology requires a large amount 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 when applied on a large scale. Especially in the face of a large range of marsh clam larvae diffusion, existing chemical methods are often difficult to keep up with the reproduction speed of the larvae, and the prevention and control effect is subject to many restrictions.

[0033] Specifically, Figure 1 This is a schematic structural diagram of a water curtain type forced turbulence device for killing pests in water provided in an embodiment of the present application.

[0034] like Figure 1 As shown, the water curtain type forced turbulence device 10 for killing pests in water comprises: specifically, a data acquisition module 100 , a turbulence generating module 200 and a turbulence control module 300 .

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

[0036] It is understood that the device preparation stage in the embodiment of the present application includes: before implementing the device, a series of measurements need to be performed 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: Use the YSI EXO multi-parameter water quality analyzer to measure water quality parameters such as water temperature, pH, dissolved oxygen, and conductivity on site; use a microscope to observe the morphology and activity of the larvae of the marsh clam, and calculate the larval density, live density, mortality rate and other parameters.

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

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

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

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

[0042] It can be understood that the turbulence generation process in the embodiment of the present application includes: the water curtain type forced turbulence device 10 drives the water flow to spray from the injection hole through the water pump to form a high kinetic energy water curtain, and optimizes the turbulence effect of the water flow by adjusting the parameters such as the water pump power, the injection hole diameter and the horizontal interval, so that the turbulence covers the entire water depth range. The water pump power controls the speed and range of the jet water flow. The higher power increases the kinetic energy of the water flow and enhances the turbulence intensity; the injection hole diameter and the horizontal interval determine the flow rate and uniformity of the jet water flow. Reasonable design ensures that the water curtain is evenly distributed in the water depth direction to avoid gaps in the turbulent area. The height of the jet water flow is determined by the water pump power and the injection hole design. 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 body, causing the vortices to gradually spread to a deeper layer to form a stable turbulent field. By regulating the spacing between the jet holes and the height of the water flow, the turbulent effect of the water curtain can evenly cover the entire water depth, achieving strong and extensive turbulent field transmission and diffusion in the water body.

[0043] The water spraying area of ​​the water curtain type forced turbulence device 10 is A = 0.0251m 2 , flow rate Q = 300m 3 / h, injection hole diameter d = 0.02m, hole spacing s = 0.05m, number of holes arranged Outflow rate of each hole Outflow rate Calculate the turbulent velocity v according to 20% 紊动 =0.2×v 出 =0.664m / s;

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

[0045] During the actual implementation process, the embodiment of the present application can utilize the turbulence generating module 200 to adjust the layout of the injection holes, the water pump power and the water spray height, such as the injection diameter, horizontal spacing, etc. based on at least one turbulence data, and adjust the water spray height so that its 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 larvae of the marsh clam in the embodiments of the present application, the primary task is to ensure that the pulse jet can generate sufficient shear force and turbulence effect to provide support for the subsequent destruction of the soft shell and inner capsule of the larvae. The working frequency of the water pump, the caliber of the injection hole, the horizontal and vertical intervals, the water spray height and the jet angle can be adjusted to generate appropriate turbulent water flow and shear, thereby significantly enhancing the turbulence effect and flow velocity intensity in the target water body, thereby destroying the shell and inner capsule of the larvae and achieving the purpose of killing.

[0047] The turbulence control module 300 is used to inject high-pressure water flow into the water body to generate a turbulent water curtain or a strongly disturbed water body that meets preset requirements, generate turbulence intensity of the high-pressure water flow according to the turbulent water curtain or the strongly disturbed water body, and based on the turbulence intensity, utilize turbulent flow field and shear to destroy the shells and inner capsules of pests in the water body to kill the pests in the water body.

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

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

[0050] b. Killing effect analysis: During the verification process, indicators such as Kappa coefficient and F1 value are used to evaluate the accuracy of the killing effect. By adjusting the turbulence intensity and duration, it is ensured that large-scale killing of larvae can be achieved without causing pollution to the environment.

[0051] In the actual implementation process, the pests in the embodiment of the present application may be larvae of the marsh clam. The embodiment of the present application may inject high-pressure water flow into the water body to generate a turbulent water curtain or a strongly disturbed water body that meets the preset requirements, and generate the turbulence intensity of the high-pressure water flow according to the turbulent water curtain or the strongly disturbed water body, thereby significantly enhancing the turbulence intensity in the water body. Figure 2 As shown, the embodiment of the present application can utilize turbulent flow field and shear to destroy the shells and inner capsules of pests in the water body to kill the pests in the water body, adapt to different killing needs, and achieve a killing effect.

[0052] The embodiment of the present application generates a great shear force through turbulence, which acts on the shell and inner capsule of the larvae of the marsh clam, destroys its physiological structure, and finally achieves the purpose of efficient killing. Compared with the traditional chemical agent method, this physical killing device has multiple advantages. It avoids the pollution of the water body and the surrounding ecosystem caused by chemical agents, reduces the 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 achieve effective killing under different water flow conditions by flexibly adjusting the water spray parameters, thereby ensuring that the adaptability and killing effect of the device can be consistent in various complex environments. In addition, the operation and maintenance costs of the device are low, which is suitable for long-term treatment of large areas of water bodies. The device is suitable for channels with a high risk of attachment of marsh clam larvae, and can effectively control the density of marsh clam larvae, prevent them from attaching to the engineering surface, and reduce the risk of larvae migrating downstream. This physical killing method can not only reduce the maintenance and cleaning costs of facilities, but also ensure the sustainability and efficiency of large-scale water body management without destroying the water body ecosystem.

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

[0054] Among them, the embodiment of the present application can collect larvae samples from upstream and downstream water bodies during the killing process, and use acoustic equipment to monitor parameters such as turbulence intensity, Reynolds stress and turbulence dissipation rate of the water flow in real time. By comparing the number and mortality of larvae in upstream and downstream samples, comparative data is generated to verify the killing effect of the device. If necessary, the injection aperture, injection frequency or water pump power can be manually adjusted to optimize the killing effect and ensure that the device operates stably under different water flow and environmental conditions.

[0055] During operation, the embodiment of the present application measures the turbulence characteristics of the surrounding flow field, including turbulent flow velocity, Reynolds stress, total turbulent energy, etc., to evaluate the relationship between turbulence intensity and killing effect, and collects the density and mortality of the larvae of the swamp clams upstream and downstream of the device through biological sampling, and further optimizes the operating parameters of the device. The embodiment of the present application can adjust the device according to the preset calculation results to obtain the required turbulence intensity, set sampling points upstream and downstream of the device to count the number and mortality rate of the larvae, and adjust the device parameters according to the data to optimize the killing effect.

[0056] Optionally, in one embodiment of the present application, a water curtain type forced turbulence device 10 for killing pests in water bodies also includes: a driving member, used to provide a power source for high-pressure water flow; a pipeline, used to arrange multiple spray holes to spray water columns according to the spray holes and generate a turbulent water curtain according to the water columns; a connecting member, the connecting member is connected to the driving member and the pipeline, and is used to transmit high-pressure water flow; a closing member, used to close the pipeline.

[0057] It is understandable that if Figure 3a and Figure 3b As shown, the driving member in the embodiment of the present application can be a water pump, the pipe can be a polyethylene (PE) pipe, the connecting member can be a connecting flange, and the closing member can be a head. The water curtain type forced turbulence device includes a water pump, a connecting flange, a polyethylene (PE) pipe and a head. The water pump is a three-phase 380V voltage pump with a power of 7.5kw and a flow rate of 300m 3 / h, lift 10m, pipeline drilling layout injection holes, hole diameter Spacing: 50mm.

[0058] In the actual implementation process, the embodiment of the present application can provide a power source for high-pressure water flow through a water pump, and the pipeline is perforated with injection holes to spray water columns according to the injection holes, and a turbulent water curtain is generated according to the water columns. The connecting flange in the embodiment of the present application is connected to the water pump and the pipeline for transmitting high-pressure water flow, and the head is used to close the pipeline.

[0059] In the embodiment of the present application, the spray holes can be arranged in the channel bottom pipeline to spray water columns into the water to form a water curtain, thereby having the potential to kill the larvae of the marsh clam.

[0060] Optionally, in one embodiment of the present application, a water curtain type forced turbulence device 10 for killing pests in water bodies also includes: a monitoring component, which is used to monitor the density information and water flow information of pests upstream and downstream of the target section, and determine the flow velocity and water flow characteristics of the surrounding water body of at least one killing device, so as to determine the amount of turbulence generated and the layout parameters based on the density information, water flow information of the pests, the flow velocity and water flow characteristics of the surrounding water body; a generating component, which is used to start the driving component based on the amount of turbulence generated and the layout parameters to obtain high-pressure water flow, generate turbulent jets according to the high-pressure water flow, and generate a turbulent water curtain according to the turbulent jets.

[0061] It can be understood that at least one killing device in the embodiment of the present application is arranged in the channel, so as to provide support for adjusting the size, spacing or water pump power of the water spray holes so that it can produce appropriate pulsating jet intensity and frequency.

[0062] The turbulence performance detection and analysis method in the embodiment of the present application includes: during the operation of the above device, ADV is also used to measure the water flow velocity time series at different spatial positions. The measuring point is 5 cm away from the ADV probe in a straight line to reduce the influence of the probe on the water flow disturbance at the measuring point. The sampling frequency is set to 100 Hz, and the single point sampling time is 4 minutes.

[0063] When measuring flow rate, the ADV is fixed on a self-made mobile bracket, which is equipped with a guide rail with a bearing slider. The ADV body can be fixed to a depth gauge (with an accuracy of 0.1mm) and can move vertically along the depth gauge. The depth gauge is fixed on the slider, so that the ADV can move horizontally along the bracket guide rail (with a horizontal ruler with an accuracy of 1mm). Through combined movement, the position of the ADV probe can be accurately determined.

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

[0065] Compare and analyze the effective operating water body range under different operating parameters; compare and analyze the differences in turbulence performance under the influence of different layout methods, focusing on the key killing parameters such as the proportion of high-frequency pulsation, the contribution rate of three-way turbulence intensity, and the characteristic scale of turbulence structure; compare and analyze the differences in turbulence performance under the influence of different flow rates, focusing on the key killing parameters such as the proportion of high-frequency pulsation, the contribution rate of three-way turbulence intensity, and the characteristic scale of turbulence structure.

[0066] In the water curtain type forced turbulence device, the larval density is observed upstream and downstream of the target section to determine the layout parameters required to achieve the best killing effect.

[0067] As a possible way to achieve this, Figure 4 and Figure 5 As shown, the embodiment of the present application can utilize the monitoring device to monitor the density information and water flow information of pests upstream and downstream of the target section, and determine the flow velocity and water flow characteristics of the surrounding water body when the killing device is running, so as to determine the amount of turbulence generated and the layout parameters required to achieve the best killing effect based on the density information, water flow information of the pests, the flow velocity and water flow characteristics of the surrounding water body.

[0068] Furthermore, in the embodiment of the present application, a plurality of killing devices are continuously arranged along the water flow direction at the target section. The devices are arranged in sections to ensure that the turbulent effect of the water flow can cover the entire water body after the devices are turned on. The water pump can be started to obtain high-pressure water flow. The water flows into the injection hole through the pipe and forms a turbulent jet in the water body, forming a strong turbulent water curtain in the water body.

[0069] The embodiment of the present application can combine the water flow information of the target water area, the density data of the larvae of the marsh clam and the related water quality parameters to adjust the turbulence parameters of the device system to adapt to different water conditions. The data source can include sensing equipment such as flow meter, ADV (acoustic Doppler velocimeter) and so on.

[0070] Optionally, in one embodiment of the present application, a water curtain type forced turbulence device 10 for killing pests in water bodies also includes: a water spraying part, which is arranged at the bottom or side wall of the channel and is used to spray pulsed water flow to cover the pest attachment area in the water body that meets preset conditions.

[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 turbulence device 10 is 0.0251m 2 .

[0072] In actual implementation, the embodiment of the present application may set a water spray device at the bottom or side wall of the channel to spray pulsed water flow to cover areas in the water body where marsh clam larvae may be attached.

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

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

[0075] It is understandable that if Figure 6 As shown, the water curtain type forced turbulence device 10 is fixed in a manner of fixing the device on a beam with the opening facing the downstream direction.

[0076] In the actual implementation process, the embodiment of the present application can deploy the water curtain type forced turbulence device 10 in the area where the clams are most seriously attached, use the detection part to detect the actual situation of the pests to generate the detection results, and use the adjustment part to dynamically adjust the deployment position according to the detection results. For example, the trash rack is usually installed below the water level rising area and above the water intake.

[0077] The practical application and large-scale promotion in this application include: the application of the water curtain type forced turbulence device 10 in large areas of water has been verified. Experimental data show that the device can effectively inhibit the growth of marsh clam larvae and significantly reduce the spread of larvae to the downstream. In practical applications, the device can adjust parameters in combination with different water conditions to adapt it to various water flow environments and achieve large-scale killing of marsh clams, 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 processing of marsh clam larvae in the water body.

[0078] Example 1

[0079] A killing device prototype was installed at the downstream gate slot of the three branch slots of a certain aqueduct. Before and after the prototype was turned on, 200L of raw water was collected and filtered on site, and the changes in the density and mortality rate of the larvae of the marsh clam were observed.

[0080] Table 1 shows the comparison of the density of larvae monitored on site before and after the start-up of the prototype of the water curtain type forced turbulence device. Among them, the natural mortality rate of prototype 1 was 68% before the start-up, and the mortality rates of the low-frequency and high-frequency groups were 100% after the start-up, indicating that both turbulence enhancement frequencies can effectively kill the larvae. From the perspective of fully utilizing energy, the effect of low-frequency operation conditions can be further tested.

[0081] Table 1

[0082]

[0083] According to a water curtain type forced turbulence device for killing pests in water bodies proposed in the embodiment of the present application, a first aspect provides a water curtain type forced turbulence device suitable for a large range in a channel, which uses a water curtain jet to generate strong shear force and turbulence effect by adjusting the height and frequency of the water spray, and effectively kills the larvae of the marsh clam in the water body. The water curtain covers a large area of ​​water, is suitable for facilities such as rivers and channels with strong fluidity, and can form a continuous and uniform turbulence zone in the water flow, thereby preventing the attachment and spread of the marsh clam larvae. In the second aspect of the present application, a set of fully automatic, low-maintenance marsh clam larvae killing system is established, which does not require human intervention, ensures efficient killing in various complex environments, and avoids pollution to the water body and the surrounding ecological environment, and is suitable for large-scale water body management applications. Thus, the relevant technology requires a large amount 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 when applied on a large scale. Especially in the face of a large-scale spread of marsh clam larvae, the existing chemical methods are often difficult to keep up with the reproduction speed of the larvae, and the prevention and control effect is subject to many restrictions.

[0084] Next, a water curtain type forced turbulence method for killing pests in water bodies proposed in accordance with an embodiment of the present application will be described with reference to the accompanying drawings.

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

[0086] like Figure 7 As shown, the water curtain type forced turbulence method for killing pests in water 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 at least one turbulence data, the layout of the injection holes, the water pump power and the water spray height are adjusted to generate a turbulent flow field and shear.

[0089] In step S703, a high-pressure water flow is injected into the water body to generate a turbulent water curtain or a strongly disturbed water body that meets preset requirements. The turbulence intensity of the high-pressure water flow is generated according to the turbulent water curtain or the strongly disturbed water body. Based on the turbulence intensity, the turbulent flow field and shear are used to destroy the shells and inner capsules of pests in the water body to kill the pests in the water body.

[0090] Optionally, in one embodiment of the present application, it also includes: monitoring the density information and water flow information of the pests upstream and downstream of the target section, and determining the flow velocity and water flow characteristics of the water body around which at least one killing device is operating, so as to determine the number and layout parameters of turbulence generated according to the density information, water flow information of the pests, the flow velocity and water flow characteristics of the surrounding water body; based on the number and layout parameters of turbulence generated, obtaining a high-pressure water flow, generating a turbulent jet according to the high-pressure water flow, and generating a turbulent water curtain according to the turbulent jet.

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

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

[0093] It should be noted that the above explanation of the embodiment of a water curtain type forced turbulence device for killing pests in water is also applicable to the water curtain type forced turbulence method for killing pests in water in this embodiment, and will not be repeated here.

[0094] According to a water curtain type forced turbulence method for killing pests in water bodies proposed in the embodiment of the present application, the first aspect provides a water curtain type forced turbulence device suitable for a large range in a channel, which uses a water curtain jet to generate strong shear force and turbulence effect by adjusting the height and frequency of the water spray, and effectively kills the larvae of the marsh clam 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 fluidity. It can form a continuous and uniform turbulence zone in the water flow, thereby preventing the attachment and spread of the marsh clam larvae. In the second aspect of the present application, a set of fully automatic, low-maintenance marsh clam larvae killing system is established. The system does not require human intervention, ensures efficient killing in various complex environments, and avoids pollution to the water body and the surrounding ecological environment, which is suitable for large-scale water body management applications. Thus, the relevant technology requires a large amount 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 when applied on a large scale. Especially in the face of a large-scale spread of marsh clam larvae, the existing chemical methods are often difficult to keep up with the reproduction speed of the larvae, and the prevention and control effect is subject to many restrictions.

[0095] Figure 8 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. The electronic device may include:

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

[0097] When the processor 802 executes the program, a water curtain type forced turbulence method for killing pests in water provided in the above embodiment is implemented.

[0098] Furthermore, the electronic device further comprises:

[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 computer programs that can be executed on the processor 802 .

[0101] The memory 801 may include a high-speed RAM memory, and may also include a non-volatile memory (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 to each other through a bus and communicate with 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. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 8 Only one thick line is used in the diagram, but this 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 communicate with each other through an internal interface.

[0104] The processor 802 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present application.

[0105] This embodiment also provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the water curtain type forced turbulence method for killing pests in water bodies as described above is implemented.

[0106] An embodiment of the present application also provides a computer program product on which a computer program is stored. When the program is executed by a processor, the water curtain type forced turbulence method for killing pests in water bodies as described above is implemented.

[0107] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. 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 may be combined in any one or N embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0108] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise clearly and 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 the steps of a custom logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present application belong.

[0110] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purpose of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or N wirings (electronic devices), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), a fiber optic device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways as necessary and then storing it in a computer memory.

[0111] It should be understood that the various parts of the present application can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiment, the N steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0112] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

[0113] In addition, each functional unit in each embodiment of the present application may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0114] The storage medium mentioned above may 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 can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application. A person of ordinary skill in the art may change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A water curtain type forced turbulence device for killing pests in water, characterized in that: include: A data acquisition module, used for acquiring 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; A turbulence generating module, for adjusting the layout of the injection holes, 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; The turbulence control module is used to inject high-pressure water flow into the water body to generate a turbulent water curtain or a strongly disturbed water body that meets preset requirements, generate the turbulence intensity of the high-pressure water flow according to the turbulent water curtain or the strongly disturbed water body, and based on the turbulence intensity, utilize the turbulent flow field and the shear to destroy the shells and inner capsules of pests in the water body to kill the pests in the water body.

2. A water curtain type forced turbulence device for killing pests in water according to claim 1, characterized in that: Also includes: A driving member, used to provide a power source for the high-pressure water flow; A pipeline, for arranging a plurality of spray holes, so as to spray water columns according to the spray holes, and generate the turbulent water curtain according to the water columns; A connecting member, the connecting member being connected to the driving member and the pipeline and used for transmitting the high-pressure water flow; A closing member is used to close the pipeline.

3. A water curtain type forced turbulence device for killing pests in water according to claim 2, characterized in that: Also includes: A monitoring component, used to monitor the density information and water flow information of the pests upstream and downstream of the target section, and determine the flow velocity and water flow characteristics of the surrounding water body where at least one killing device is running, so as to determine the amount of turbulence generated and the arrangement parameters according to the density information of the pests, the water flow information, the flow velocity of the surrounding water body and the water flow characteristics; A generating member is used to start the driving member to obtain the high-pressure water flow based on the turbulence generation amount and the arrangement parameters, generate a turbulent jet according to the high-pressure water flow, and generate the turbulent water curtain according to the turbulent jet.

4. A water curtain type forced turbulence device for killing pests in water according to claim 1, characterized in that: Also includes: A water spraying member is arranged at the bottom or side wall of the channel and is used to spray pulsed water flow to cover the pest attachment area in the water body that meets preset conditions.

5. A water curtain type forced turbulence device for killing pests in water according to claim 1, characterized in that: The turbulence control module is further used to monitor at least one parameter of the turbulence intensity, Reynolds stress and turbulence dissipation rate of the high-pressure water flow, and based on the at least one parameter, compare the number and mortality rate of the pests in the upstream and downstream samples to generate comparative data.

6. A water curtain type forced turbulence device for killing pests in water according to claim 1, characterized in that: Also includes: A detection element, used to detect the actual situation of the pests to generate a detection result; The adjusting member is used to dynamically adjust the layout position according to the detection result.

7. A water curtain type forced turbulence method for killing pests in water, characterized in that: The following steps are involved: 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; Based on the at least one turbulence data, adjusting the layout of the injection holes, the water pump power and the water spray height to generate a turbulent flow field and shear; A high-pressure water flow is injected into a water body to generate a turbulent water curtain or a strongly disturbed water body that meets preset requirements, the turbulence intensity of the high-pressure water flow is generated according to the turbulent water curtain or the strongly disturbed water body, and based on the turbulence intensity, the turbulent flow field and the shear are used to destroy the shells and inner capsules of pests in the water body to kill the pests in the water body.

8. An electronic device, characterized in that: include: 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 claim 7.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: The program is executed by a processor to implement a water curtain type forced turbulence method for killing pests in a water body as described in claim 7.

10. A computer program product, comprising a computer program, characterized in that The computer program is executed to implement a water curtain type forced turbulence method for killing pests in water as described in claim 7.

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