A water quality regulation platform for a seawater industrial recirculating aquaculture system and its water quality regulation method

Abstract

The present invention relates to the field of aquaculture technology, and in particular to a water quality control platform for a seawater factory-scale circulating water aquaculture system and a water quality control method thereof. A water quality control method for a seawater factory-scale circulating water aquaculture system water quality control platform, which adds aquaculture source water mixed with seawater, warm water, and well water to adjust the water quality. Specifically, when the aquaculture water body is within a set target threshold, the aquaculture water body is replenished with source water according to an aquaculture source water preparation model. When the aquaculture water body exceeds the target threshold, the aquaculture water body is water-quality controlled according to an aquaculture source water adjustment model. A seawater factory-scale circulating water aquaculture system water quality control platform, comprising: an installation frame and a source water blending device, a water storage device, and a control system, which pumps seawater, warm water, and well water into a source water blending barrel by adjusting the flow rate of a peristaltic pump according to the above-mentioned water quality control method, thereby achieving the purpose of water quality control. The structure is reasonable and easy to assemble, with low labor cost and low resource consumption.

Description

Technical Field

[0001] The present invention relates to the technical field of aquaculture, and particularly to a water quality regulation platform and a water quality regulation method for a seawater industrialized recirculating aquaculture system. Background Art

[0002] Industrialized recirculating aquaculture is a new aquaculture mode, which has the advantages of small occupied space, high controllability of the aquaculture environment, high water conservation efficiency, safe product quality, ecological environmental protection, etc., and has become one of the mainstream aquaculture modes of aquaculture companies. In the aquaculture water environment, the change of water temperature will affect the growth of aquaculture organisms. Therefore, water quality regulation is an important part of the industrialized recirculating aquaculture system, and the quality of water is the key to the growth and development of fish.

[0003] In response to the situation of too high or too low water temperature in the aquaculture water body, two main methods are mainly used for regulation in traditional recirculating aquaculture: the first is to add heat exchange equipment to conduct heat exchange with the aquaculture water body. This method not only has a high equipment cost, but also has a low heat exchange efficiency, causing great waste of resources; the second is to add well water and warm water to change the water of the aquaculture water body. This method causes the salinity of the aquaculture water body to drop too fast, which not only affects the growth of fish, but also reduces the quality of fish and affects the economic benefits.

[0004] Due to the discharge of fish feces and other substances in the water quality in the recirculating aquaculture system, the aquaculture water body in the recirculating aquaculture system decreases. Therefore, it is necessary to add some aquaculture source water to supplement the aquaculture water body in the recirculating aquaculture system. The aquaculture source water is made by stirring and mixing seawater, warm water and well water. Due to the change of weather and climate in summer and winter, the seawater temperature is unstable, and the staff lack the corresponding theoretical basis, resulting in uneven preparation effects of the aquaculture source water. Due to the poor preparation effect of the aquaculture source water, aquaculture companies often need to discharge some of the already prepared aquaculture source water and re-prepare the aquaculture source water, resulting in waste of water resources and increased aquaculture costs. Summary of the Invention

[0005] In order to solve the above deficiencies of the prior art, the present invention provides a water quality regulation platform and a water quality regulation method for a seawater industrialized recirculating aquaculture system.

[0006] The technical solution of the present invention is realized as follows:

[0007] A water quality regulation method for a water quality regulation platform of a seawater industrialized recirculating aquaculture system, which achieves the purpose of water quality regulation by adding aquaculture source water to change the water of the aquaculture water body. The aquaculture source water is mixed by seawater, warm water and well water. The specific operation is as follows:

[0008] Input the room temperature, seawater temperature and salinity, warm water temperature, well water temperature and salinity, target water temperature and salinity, and the water temperature and salinity of the aquaculture system into the coupled regulation model of aquaculture source water salinity and temperature based on feedforward-feedback control. The coupled regulation model of aquaculture source water salinity and temperature based on feedforward-feedback control includes an aquaculture source water preparation model and an aquaculture source water regulation model. The aquaculture source water preparation model takes seawater temperature and salinity, warm water temperature, well water temperature and salinity, and target water temperature and salinity as input factors, and takes seawater configuration ratio, warm water configuration ratio, and well water configuration ratio as output results. The aquaculture source water regulation model takes room temperature, seawater temperature and salinity, warm water temperature, well water temperature and salinity, the water temperature and salinity of the aquaculture system before regulation, and the target water temperature and salinity of the aquaculture system as input factors, and takes seawater configuration ratio, warm water configuration ratio, and well water configuration ratio as output results.

[0009] When the aquaculture water body is within the set target threshold, a feedforward control method is used to replenish the source water of the aquaculture water body. Specifically: Monitor the room temperature, seawater temperature and salinity, warm water temperature, well water temperature and salinity in real time. When the water quality of seawater, warm water, and well water changes, recalculate the flow rates of seawater, warm water, and well water through the aquaculture source water preparation model, and adjust the corresponding regulating valves. The construction method of the aquaculture source water preparation model is as follows: Collect historical aquaculture source water preparation data, and preprocess and transform the collected data set. Randomly divide the data into a training set and a test set. Use the data in the training set to train the aquaculture source water preparation model based on PSO-XGBoost. Use the data in the test set to test the aquaculture source water preparation model based on PSO-XGBoost. Obtain a qualified aquaculture source water preparation model based on PSO-XGBoost.

[0010] When the aquaculture water body exceeds the target threshold, a feedback control method is used to regulate the water quality of the aquaculture water body. Specifically: Monitor the room temperature, seawater temperature and salinity, warm water temperature, well water temperature and salinity, and the temperature and salinity of the aquaculture water body in real time. When the water temperature and salinity of the aquaculture water body exceed the set target threshold, recalculate the flow rates of seawater, warm water, and well water through the aquaculture source water regulation model, and adjust the corresponding regulating valves. Stop the feedback control when the water temperature and salinity of the aquaculture water body reach the set target threshold, and switch to feedforward control. The construction method of the aquaculture source water regulation model is as follows: Collect historical aquaculture source water regulation data, and preprocess the collected data set. Randomly divide the data into a training set and a test set. Use the data in the training set to train the aquaculture source water regulation model based on PSO-XGBoost. Use the data in the test set to test the aquaculture source water regulation model based on PSO-XGBoost. Obtain a qualified aquaculture source water regulation model based on PSO-XGBoost.

[0011] Preferably, when constructing the aquaculture source water preparation model and the aquaculture source water regulation model, the data set is randomly divided into a training set and a test set in a ratio of 4:1.

[0012] Further preferably, the historical preparation data of aquaculture source water include: seawater temperature and salinity, warm water temperature, well water temperature and salinity, prepared aquaculture source water temperature and salinity, and the flow rate of seawater, warm water and well water used when preparing aquaculture source water.

[0013] Further preferably, the conversion of the preparation model data is to convert the flow rate used by seawater, the flow rate used by warm water, and the flow rate used by well water into the seawater configuration ratio, the warm water configuration ratio, and the well water configuration ratio.

[0014]

[0015] In the formula: HP is the seawater configuration ratio when preparing aquaculture source water, WP is the warm water configuration ratio when preparing aquaculture source water, JP is the well water configuration ratio when preparing aquaculture source water, HL is the flow rate used in preparing aquaculture source water, WL is the flow rate used in preparing aquaculture source water, and JL is the flow rate used in preparing aquaculture source water.

[0016] More preferably, the historical adjustment data of aquaculture source water include: room temperature, seawater temperature and salinity, warm water temperature, well water temperature and salinity, aquaculture system water temperature and salinity before adjustment, aquaculture system water temperature and salinity after adjustment, seawater configuration ratio, warm water configuration ratio, and well water configuration ratio.

[0017] The present invention also proposes a water quality control platform for a seawater factory-scale circulating aquaculture system, which uses the above-mentioned water quality control method to regulate water quality.

[0018] Specifically, a water quality control platform for a seawater factory-scale circulating aquaculture system includes: a mounting frame and a source water dispensing device, a water storage device, and a control system arranged on the mounting frame;

[0019] The source water mixing device includes a source water mixing barrel and a source water circulation pump. The source water mixing barrel is provided with a source water mixing barrel observation port, a source water mixing barrel drainage assembly, a circulating water outlet assembly, a circulating water inlet assembly, a seawater inlet assembly, a warm water inlet assembly and a well water inlet assembly. The source water mixing barrel is connected to the water inlet of the source water circulation pump through the circulating water outlet assembly. The water outlet of the source water circulation pump is connected to the source water mixing barrel through the circulating water inlet. The source water mixing barrel is provided with a source water mixing barrel salinity sensor, a source water mixing barrel liquid level gauge and a heat exchange device.

[0020] The water storage device includes: a seawater barrel, a warm water barrel and a well water barrel, each of which is provided with an observation port, a drainage assembly, a water inlet and a water outlet. The seawater barrel and the warm water barrel are respectively provided with a seawater barrel heater and a warm water barrel heater. The seawater barrel and the well water barrel are respectively provided with a seawater barrel salinity sensor and a well water barrel salinity sensor. The warm water barrel is also provided with a temperature sensor. A seawater circulation pump is provided outside the seawater barrel. The water outlets provided on the seawater barrel, the water outlets provided on the warm water barrel and the water outlets provided on the well water barrel are respectively connected to the water inlet of the source water mixing barrel.

[0021] control systems;

[0022] The source water circulation pump, source water mixing barrel salinity sensor, source water mixing barrel level gauge, heat exchange device, seawater barrel heater, warm water barrel heater, temperature sensor, seawater barrel salinity sensor, well water barrel salinity sensor, and seawater circulation pump are respectively connected to the control system.

[0023] Specifically, the installation frame is constructed of European standard aluminum profiles and connected with light-load angle brackets. Casters are provided at the bottom of the installation frame for easy movement.

[0024] Specifically, it also includes a sewage main pipe, and the drainage component arranged on the sea water bucket, the drainage component arranged on the warm water bucket and the drainage component arranged on the well water bucket are respectively connected to the sewage main pipe.

[0025] Specifically, the water outlets on the seawater bucket, the warm water bucket and the well water bucket are respectively connected to the water inlet of the source water mixing bucket through peristaltic pumps or variable frequency water pumps.

[0026] The water quality control platform for the factory-scale recirculating aquaculture system of seawater proposed in the present invention can regulate the water quality of the aquaculture system by controlling the flow of seawater, warm water and well water according to the source water quality and the changes in seawater temperature and salinity in different seasons, thereby improving the output and economic benefits. It has a reasonable structure and is easy to assemble, with low labor costs and resource consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 This is a schematic diagram of the structure of a water quality control platform for a seawater factory-scale circulating aquaculture system of the present invention. Figure 1 ;

[0029] Figure 2 is Figure 1 a schematic structural diagram of the raw water allocation device;

[0030] Figure 3 is Figure 1 a schematic structural diagram of the water storage device;

[0031] Figure 4 is a schematic structural diagram of the water quality regulation platform of a seawater industrialized recirculating aquaculture system of the present invention Figure 2 ;

[0032] Figure 5 is Figure 4 a schematic flow chart of the water quality regulation method adopted;

[0033] Figure 6 is a PSO-XGBoost algorithm flow chart.

[0034] In the figure: 1. Raw water allocation device; 11. Raw water allocation bucket; 111. Observation port of the raw water allocation bucket; 112. Drainage component of the raw water allocation bucket; 113. Circulating water outlet component; 114. Circulating water inlet component; 115. Seawater inlet component; 116. Warm water inlet component; 117. Well water inlet component; 118. Salinity sensor of the raw water allocation bucket; 1181. Buckle; 119. Liquid level gauge of the raw water allocation bucket; 1191. Hexagonal screw; 1192. Support plate of the liquid level gauge of the raw water allocation bucket; 2. Water storage device; 21. Seawater bucket; 211. Observation port of the seawater bucket; 212. Drainage component of the seawater bucket; 213. Outlet of the seawater bucket; 214. Seawater circulation outlet; 215. Seawater circulation inlet; 216. Salinity sensor of the seawater bucket; 217. Seawater bucket heater; 2171. Support plate of the seawater bucket heater; 22. Warm water bucket; 221. Observation port of the warm water bucket; 222. Drainage component of the warm water bucket; 223. Outlet of the warm water bucket; 224. Warm water bucket heater; 2241. Support plate of the warm water bucket heater; 23. Well water bucket; 231. Observation port of the well water bucket; 232. Drainage component of the well water bucket; 233. Outlet of the well water bucket; 234. Salinity sensor of the well water bucket; 3. Control system; 31. Control box; 32. Lower wire trough; 33. Upper wire trough; 41. Well water peristaltic pump; 42. Warm water peristaltic pump; 43. Seawater peristaltic pump; 44. Seawater circulation pump; 45. Raw water circulation pump; 46. Sewage main pipe; 47. Caster. Detailed implementation manners

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0036] As Figure 5 shown: A water quality regulation method for a water quality regulation platform of a seawater industrialized recirculating aquaculture system. The water quality of the aquaculture water body is adjusted by adding aquaculture source water for water exchange. The aquaculture source water is composed of seawater, warm water, and well water. The specific operations are as follows:

[0037] Input the room temperature, seawater water temperature and salinity, warm water temperature, well water temperature and salinity, target water temperature and salinity, and aquaculture system water temperature and salinity into the coupled regulation model of aquaculture source water salinity and temperature based on feedforward-feedback control. The coupled regulation model of aquaculture source water salinity and temperature based on feedforward-feedback control includes an aquaculture source water preparation model and an aquaculture source water regulation model. The aquaculture source water preparation model takes the seawater water temperature and salinity, warm water temperature, well water temperature and salinity, target water temperature and salinity, and aquaculture system water temperature and salinity as input factors, and takes the seawater configuration ratio, warm water configuration ratio, and well water configuration ratio as output results. The aquaculture source water regulation model takes the room temperature, seawater water temperature and salinity, warm water temperature, well water temperature and salinity, aquaculture system water temperature and salinity before regulation, and target water temperature and salinity as input factors, and takes the seawater configuration ratio, warm water configuration ratio, and well water configuration ratio as output results.

[0038] When the aquaculture water body is within the set target threshold, a feedforward control method is used to replenish the source water of the aquaculture water body. Specifically: Real-time monitor the seawater water temperature and salinity, warm water temperature, well water temperature and salinity. When the water quality of seawater, warm water, and well water changes, recalculate the flow rates of seawater, warm water, and well water through the aquaculture source water preparation model, and adjust the corresponding regulating valves. The construction method of the aquaculture source water preparation model is: Collect historical aquaculture source water preparation data (the historical aquaculture source water preparation data includes: seawater water temperature and salinity, warm water temperature, well water temperature and salinity, the water temperature and salinity of the prepared aquaculture source water, and the flow rates of seawater, warm water, and well water used when preparing the aquaculture source water), and preprocess and transform the collected data set. The preprocessing specifically refers to clearing abnormal data, correcting data using the average value, etc. To ensure the generalization of the aquaculture source water preparation model, it is preferably to convert the flow rate data into a configuration ratio, that is:

[0039]

[0040] Where: HP is the seawater configuration ratio during the preparation of aquaculture source water, WP is the warm water configuration ratio during the preparation of aquaculture source water, JP is the well water configuration ratio during the preparation of aquaculture source water, HL is the flow rate of seawater used for preparing aquaculture source water, WL is the flow rate of warm water used for preparing aquaculture source water, JL is the flow rate of well water used for preparing aquaculture source water; The data is randomly divided into a training set and a test set according to 4:1; The data in the training set is used to train the aquaculture source water preparation model based on PSO-XGBoost; The data in the test set is used to test the aquaculture source water preparation model based on PSO-XGBoost; Obtain a qualified aquaculture source water preparation model based on PSO-XGBoost;

[0041] When the aquaculture water body exceeds the target threshold, a feedback control method is used to regulate the water quality of the aquaculture water body. Specifically: The room temperature, seawater temperature and salinity, warm water temperature, well water temperature and salinity, and the temperature and salinity of the aquaculture water body are monitored in real time. When the temperature and salinity of the aquaculture water body exceed the set target threshold, the flow rates of seawater, warm water, and well water are recalculated through the aquaculture source water regulation model, and the corresponding regulating valves are adjusted. When the temperature and salinity of the aquaculture water body reach the set target threshold, the feedback control is stopped and switched to feedforward control; The construction method of the aquaculture source water regulation model is: Collect historical regulation data of aquaculture source water (the historical regulation data of aquaculture source water includes: room temperature, seawater temperature and salinity, warm water temperature, well water temperature and salinity, water temperature and salinity of the aquaculture system before regulation, water temperature and salinity of the aquaculture system after regulation, seawater configuration ratio, warm water configuration ratio, well water configuration ratio), and preprocess the collected data set; The data is randomly divided into a training set and a test set according to 4:1; The data in the training set is used to train the aquaculture source water regulation model based on PSO-XGBoost; The data in the test set is used to test the aquaculture source water regulation model based on PSO-XGBoost; Obtain a qualified aquaculture source water regulation model based on PSO-XGBoost.

[0042] XGBoost (Extreme Gradient Boosting) is a gradient boosting algorithm and a residual decision tree. Its basic idea is: Trees are gradually added to the model one by one. When adding each CRAT decision tree, the overall effect (the objective function decreases) is improved. Multiple decision trees (multiple single weak classifiers) are used to form a combined classifier, and a certain weight value is assigned to each leaf node. The PSO-XGBoost model uses the data in the training set to train the PSO-XGBoost model. Based on the characteristics of population-based stochastic optimization technology, the current optimal parameter values are passed to XGBoost for prediction from the pre-set parameter combination interval. For example Figure 6The specific steps are as follows: Step 1: Initialize the particle swarm and set the relevant parameters (maximum number of iterations, inertia factor, acceleration constant); Step 2: Calculate the particle fitness according to the objective function and select the global optimal particle; Step 3: Determine whether the fitness of the global optimal particle meets the minimum requirement of the objective function or whether the number of iterations has been reached; Step 4: If the minimum requirement is not met or the maximum number of iterations has been reached, it is necessary to update the particle speed and position v according to the particle speed update strategy i =w×v i +c1×rand()×(pbest i -x i )+c2×rand()×(pbest i -x i ), where w is the inertia factor, pbest i is the historical optimal position of the particle, gbest i is the historical optimal position in the particle swarm, c1 and c2 represent the individual learning factor and the group learning factor respectively. Step 5: Repeat steps 2 to 4 until the minimum requirement is met or the maximum number of iterations is reached; Step 6: Output the global optimal value of the particle swarm and its corresponding position. Among them, the PSO-XGBoost fitness function calculation formula is:

[0043]

[0044] The water quality control method proposed in the present invention is based on the characteristics of feedforward control and feedback control, and combines the aquaculture source water preparation model and the aquaculture source water regulation model to construct a coupled control model of aquaculture source water salinity and temperature based on feedforward-feedback control, thereby achieving a dynamic balance of temperature and salinity in the aquaculture water body, promoting the growth of farmed animals, and improving aquaculture output and economic benefits.

[0045] like Figures 1 - 4 Commonly shown: A water quality control platform for a seawater factory-scale recirculating aquaculture system, which uses the above-mentioned water quality control method to adjust water quality, including: a mounting frame and a source water allocation device 1, a water storage device 2 and a control system 3 arranged on the mounting frame;

[0046] The mounting frame is constructed of European standard aluminum profiles and connected with light-load angle brackets. To facilitate movement, casters 47 are provided at the bottom of the mounting frame.

[0047] The raw water blending device 1 includes a raw water blending barrel 11 and a raw water circulation pump 45 (for accelerating the water quality blending in the raw water blending barrel 11 and reducing the water quality regulation time). An observation port 111 for the raw water blending barrel, a drainage assembly 112 for the raw water blending barrel, a circulating water outlet assembly 113, a circulating water inlet assembly 114, a seawater inlet assembly 115, a warm water inlet assembly 116, and a well water inlet assembly 117 are provided on the raw water blending barrel 11. The raw water blending barrel 11 is connected to the water inlet of the raw water circulation pump 45 through the circulating water outlet assembly 113, and the water outlet of the raw water circulation pump 45 is connected to the raw water blending barrel 11 through the circulating water inlet. A salinity sensor 118 for the raw water blending barrel, a liquid level gauge 119 for the raw water blending barrel, and a heat exchange device are provided inside the raw water blending barrel 11. The salinity sensor 118 for the raw water blending barrel is fixed to the bottom of the rear side of the raw water blending barrel 11 through a buckle 1181, and the liquid level gauge 119 for the raw water blending barrel is specifically fixedly connected to the top of the raw water blending barrel 11 through a hexagon screw 1191 and a liquid level gauge support plate 1192 for the raw water blending barrel;

[0048] The water storage device 2 includes: a seawater barrel 21, a warm water barrel 22, and a well water barrel 23. An observation port 211 for the seawater barrel, a drainage assembly 212 for the seawater barrel, a seawater inlet (not marked), a seawater outlet 213, a seawater circulating outlet 214, and a seawater circulating inlet 215 are provided on the seawater barrel 21. An observation port 221 for the warm water barrel, a drainage assembly 222 for the warm water barrel, and a warm water outlet 223 are provided on the warm water barrel 22. An observation port 231 for the well water barrel, a drainage assembly 232 for the well water barrel, and a well water outlet 233 are provided on the well water barrel 23. A seawater barrel heater 217 (the seawater barrel heater 217 is fixed inside the seawater barrel 21 through a seawater barrel heater support plate 2171) and a warm water barrel heater 224 (the warm water barrel heater 224 is fixed inside the warm water barrel 22 through a warm water barrel heater support plate 2241) are respectively provided inside the seawater barrel 21 and the warm water barrel 22. A salinity sensor 216 for the seawater barrel and a salinity sensor 234 for the well water barrel are respectively provided inside the seawater barrel 21 and the well water barrel 23. A temperature sensor is also provided inside the warm water barrel 22. A seawater circulation pump 44 is provided outside the seawater barrel 21, and the seawater circulation pump 44 is located between the seawater circulating outlet 214 and the seawater circulating inlet 215. The seawater is configured by simulating real seawater with water and salt. The presence of the seawater circulation pump 44 can accelerate the water quality blending in the seawater barrel 11 and reduce the water quality regulation time; the seawater outlet 213, the warm water outlet 223, and the well water outlet 233 are respectively connected to the water inlet of the raw water blending barrel 11 through a seawater peristaltic pump 43, a warm water peristaltic pump 42, and a well water peristaltic pump 41 (the peristaltic pump can be replaced with a variable frequency water pump);

[0049] The control system 3 includes a data acquisition module, a data processing module, water quality adjustment equipment, and a human-machine interface. Each structure of the control system is arranged in the control box 31; the salinity sensor 118 of the source water mixing barrel, the liquid level gauge 119 of the source water mixing barrel, the temperature sensor, the salinity sensor 216 of the seawater barrel, the salinity sensor 234 of the well water barrel, etc. constitute the data acquisition module. There are upper wire grooves 33 and lower wire grooves 32 for wrapping wires on the control box 31. Both the upper wire grooves 33 and the lower wire grooves 32 are provided with inlet ports and outlet ports. Each sensor is electrically connected to the data processing module through a wire passing through the wire groove; the data processing module includes a PLC controller, a temperature transmitter, several relays, several switches, an RS485 communication module, etc. The PLC controller, the temperature transmitter, and the RS485 communication module are all connected to the switch through wires, and the switch is electrically connected to an external power supply; the source water circulation pump 45, the seawater barrel heater 217, the warm water barrel heater 224, the heat exchange device, the seawater circulation pump 44, the seawater peristaltic pump 43, the warm water peristaltic pump 42, the well water peristaltic pump 41, etc. constitute the water quality adjustment equipment; the human-machine interface includes a touch screen, and the touch screen communicates with the PLC controller through RS485;

[0050] The sewage main pipe 46, the source water mixing barrel drainage assembly 112, the seawater barrel drainage assembly 212, the warm water barrel drainage assembly 222, and the well water barrel drainage assembly 232 are all respectively connected to the sewage main pipe 46, and the test wastewater can be discharged through the sewage main pipe 46;

[0051] The source water circulation pump 45, the salinity sensor 118 of the source water mixing barrel, the liquid level gauge 119 of the source water mixing barrel, the heat exchange device, the seawater barrel heater 217, the warm water barrel heater 224, the temperature sensor, the salinity sensor 216 of the seawater barrel, the salinity sensor 234 of the well water barrel, and the seawater circulation pump 44 are all respectively connected to the control system 3.

[0052] The water quality regulation platform of the seawater industrialized recirculating aquaculture system proposed by the present invention adjusts the flow rate of the peristaltic pump to pump seawater, warm water, and well water in the water storage device 2 into the source water mixing barrel 11, thereby regulating the water quality in the source water mixing barrel 11, and actually simulates the process of changing water and replenishing water in the seawater industrialized recirculation.

[0053] By setting a circulation water pump at the rear of the source water mixing barrel 11, the water quality integration in the source water mixing barrel 11 is accelerated. The whole process is automated, which not only reduces the water quality regulation time, improves the preparation effect of the aquaculture source water, but also does not cause waste of water resources, and helps to reduce the aquaculture cost.

[0054] The above are only the preferred embodiments of the present invention. The orientation terms such as "left" and "right" are used only for facilitating the description of the structure of the present invention and do not limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention. The structures or their connection relationships not described in detail above adopt the existing technologies.

Claims

1. A water quality regulation method for a water quality regulation platform of a seawater industrialized recirculating aquaculture system, characterized in that: The culture water body is exchanged with culture source water to achieve the purpose of water quality regulation. The culture source water is composed of seawater, warm water, and well water. The specific operation is as follows: The room temperature, seawater temperature and salinity, warm water temperature, well water temperature and salinity, target water temperature and salinity, and culture system water temperature and salinity are input into the coupled regulation model of culture source water salinity and temperature based on feedforward-feedback control. The coupled regulation model of culture source water salinity and temperature based on feedforward-feedback control includes a culture source water preparation model and a culture source water regulation model; the culture source water preparation model takes seawater temperature and salinity, warm water temperature, well water temperature and salinity, and target water temperature and salinity as input factors, and takes seawater configuration ratio, warm water configuration ratio, and well water configuration ratio as output results; the culture source water regulation model takes room temperature, seawater temperature and salinity, warm water temperature, well water temperature and salinity, culture system water temperature and salinity, and target water temperature and salinity as input factors, and takes seawater configuration ratio, warm water configuration ratio, and well water configuration ratio as output results; When the culture water body is within the set target threshold, feedforward control is used to replenish the source water of the culture water body. Specifically: the room temperature, seawater temperature and salinity, warm water temperature, and well water temperature and salinity are monitored in real time. When the water quality of seawater, warm water, and well water changes, the flow rates of seawater, warm water, and well water are recalculated through the culture source water preparation model, and the corresponding regulating valves are adjusted; the construction method of the culture source water preparation model is: collect historical preparation data of the culture source water, and preprocess and transform the collected data set; randomly divide the data into a training set and a test set; use the data in the training set to train the culture source water preparation model based on PSO-XGBoost; use the data in the test set to test the culture source water preparation model based on PSO-XGBoost; Obtain a culture source water preparation model based on PSO-XGBoost that passes the test; When the culture water body exceeds the target threshold, feedback control is used to regulate the water quality of the culture water body. Specifically: the room temperature, seawater temperature and salinity, warm water temperature, well water temperature and salinity, and the temperature and salinity of the culture water body are monitored in real time. When the temperature and salinity of the culture water body exceed the set target threshold, the flow rates of seawater, warm water, and well water are recalculated through the culture source water regulation model, and the corresponding regulating valves are adjusted. When the temperature and salinity of the culture water body reach the set target threshold, the feedback control is stopped and switched to feedforward control; the construction method of the culture source water regulation model is: collect historical regulation data of the culture source water, and preprocess the collected data set; randomly divide the data into a training set and a test set; use the data in the training set to train the culture source water regulation model based on PSO-XGBoost; use the data in the test set to test the culture source water regulation model based on PSO-XGBoost; Obtain a culture source water regulation model based on PSO-XGBoost that passes the test.

2. The water quality regulation method of the water quality regulation platform of the seawater industrialized recirculating aquaculture system according to claim 1, characterized in that: When constructing the culture source water preparation model and the culture source water regulation model, the data set is randomly divided into a training set and a test set according to a ratio of 4:

1.

3. The water quality regulation method of the water quality regulation platform for the seawater industrialized recirculating aquaculture system according to claim 1, characterized in that: The historical preparation data of the aquaculture source water include: seawater temperature and salinity, warm water temperature, well water temperature and salinity, the temperature and salinity of the prepared aquaculture source water, and the flow rates of seawater, warm water, and well water used in the preparation of the aquaculture source water.

4. The water quality regulation method of the water quality regulation platform for the industrialized seawater recirculating aquaculture system according to claim 3, characterized in that: Converting the data means converting the flow rates of seawater, warm water, and well water used into the seawater mixing ratio, warm water mixing ratio, and well water mixing ratio. In the formula: HP is the seawater mixing ratio during the preparation of the aquaculture source water, WP is the warm water mixing ratio during the preparation of the aquaculture source water, JP is the well water mixing ratio during the preparation of the aquaculture source water, HL is the flow rate of seawater used in the preparation of the aquaculture source water, WL is the flow rate of warm water used in the preparation of the aquaculture source water, and JL is the flow rate of well water used in the preparation of the aquaculture source water.

5. The water quality regulation method of the water quality regulation platform of the seawater industrialized recirculating aquaculture system according to claim 1, characterized in that: The historical adjustment data of the aquaculture source water include: room temperature, seawater temperature and salinity, warm water temperature, well water temperature and salinity, the water temperature and salinity of the aquaculture system before regulation, the water temperature and salinity of the aquaculture system after regulation, the seawater mixing ratio, the warm water mixing ratio, and the well water mixing ratio.

6. A water quality regulation platform for an industrialized seawater recirculating aquaculture system, characterized in that: The water quality is adjusted by using the water quality regulation method described in Claim 1.

7. The water quality regulation platform of the industrialized seawater recirculating aquaculture system according to claim 6, wherein: It includes: An installation frame and a source water distribution device (1), a water storage device (2), and a control system (3) provided on the installation frame; The source water distribution device (1) includes a source water distribution barrel (11) and a source water circulation pump (45). The source water distribution barrel (11) is provided with a source water distribution barrel observation port (111), a source water distribution barrel drainage component (112), a circulating water outlet component (113), a circulating water inlet component (114), a seawater inlet component (115), a warm water inlet component (116), and a well water inlet component (117). The source water distribution barrel (11) is connected to the inlet of the source water circulation pump (45) through the circulating water outlet component (113). The outlet of the source water circulation pump (45) is connected to the source water distribution barrel (11) through the circulating water inlet. A source water distribution barrel salinity sensor (118), a source water distribution barrel level gauge (119), and a heat exchange device are provided inside the source water distribution barrel (11); The water storage device (2) includes: a seawater barrel (21), a warm water barrel (22), and a well water barrel (23). The seawater barrel (21), the warm water barrel (22), and the well water barrel (23) are respectively provided with an observation port, a drainage component, an inlet, and an outlet. A seawater barrel heater (217) and a warm water barrel heater (224) are respectively provided inside the seawater barrel (21) and the warm water barrel (22). A seawater barrel salinity sensor (216) and a well water barrel salinity sensor (234) are respectively provided inside the seawater barrel (21) and the well water barrel (23). A temperature sensor is also provided inside the warm water barrel (22). A seawater circulation pump (44) is provided outside the seawater barrel (21). The outlets provided on the seawater barrel (21), the outlets provided on the warm water barrel (22), and the outlets provided on the well water barrel (23) are respectively connected to the inlet of the source water distribution barrel (11); The control system (3); The source water circulation pump (45), the salinity sensor (118) of the source water mixing barrel, the liquid level gauge (119) of the source water mixing barrel, the heat exchange device, the seawater barrel heater (217), the warm water barrel heater (224), the temperature sensor, the seawater barrel salinity sensor (216), the well water barrel salinity sensor (234), and the seawater circulation pump (44) are all respectively connected to the control system (3).

8. The water quality regulation platform of the industrialized seawater recirculating aquaculture system according to claim 7, characterized in that: The installation frame is built from European standard aluminum profiles and connected using light-duty corner codes. The bottom of the installation frame is provided with casters (47) for easy movement.

9. The water quality regulation platform of the industrialized seawater recirculating aquaculture system according to claim 7, characterized in that: It further includes a main sewage discharge pipe (46). The drainage components provided on the seawater barrel (21), the drainage components provided on the warm water barrel (22), and the drainage components provided on the well water barrel (23) are all respectively connected to the main sewage discharge pipe (46).

10. The water quality regulation platform of the industrialized seawater recirculating aquaculture system according to claim 7, characterized in that: The water outlets provided on the seawater barrel (21), the water outlets provided on the warm water barrel (22), and the water outlets provided on the well water barrel (23) are all respectively connected to the water inlet of the source water mixing barrel (11) through peristaltic pumps or variable frequency water pumps.

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