CN110066059B

CN110066059B - Physical purification device for aquaculture water

Info

Publication number: CN110066059B
Application number: CN201910448104.1A
Authority: CN
Inventors: 张高立; 李张平; 朱萍飞; 吕维娜; 潘明杰; 胡鹏
Original assignee: Zhejiang Heng Ze Ecological Agricultural Science And Technology Ltd
Current assignee: Zhejiang Heng Ze Ecological Agricultural Science And Technology Ltd
Priority date: 2019-05-27
Filing date: 2019-05-27
Publication date: 2024-05-28
Anticipated expiration: 2039-05-27
Also published as: CN110066059A

Abstract

The physical purification device for the aquaculture water body comprises a container or a pool for aquaculture, wherein the container is connected with a purification system for physical purification of the water body, and the system consists of an aeration oxygenation coil pipe, an oxygen generator, an oxygen delivery pipe, a sensor, a controller, a heating device, a disinfection device and a maintenance-free full-automatic microporous filter; the device keeps the temperature of water in the container invariable through heating device, can go out big particle pollutant such as debris in the water through maintenance-free full-automatic microporous filter, goes out tiny harmful substance through degassing unit simultaneously to guaranteed the quality of water of container and stably satisfied and breed the use, can realize automated control through controller and sensor cooperation simultaneously.

Description

Physical purification device for aquaculture water

Technical Field

The invention relates to the technical field of scientific fish culture, in particular to a physical purification device for aquaculture water.

Background

"Raising fish in pond, first, the water in pond is first prepared. Along with the continuous improvement of the aquaculture technology and the high-density cultivation of fish, the aim of realizing the fine-cultured fish is achieved, the stable yield is achieved, the unit yield area is effectively improved, and the improvement of the water quality becomes a key problem in the stage.

The farmed fish pool is contaminated because of degradation of the farmed water due to spoilage of non-ingested residual baits, excretions and secretions of farmed organisms and residues, pathogens and other impurities. These contaminants, which are ultimately present in the form of suspended particulates, dissolved organics, ammonia nitrogen, should be provided with different contaminant treatment units to maintain the overall aquaculture system in need of water quality, dissolved oxygen, temperature and other physical parameters in order to achieve concentrations below the safe concentrations required for normal growth and propagation of the farmed organisms. Otherwise, the eutrophication of the water body is caused, harmful water bloom is induced, and the cultivation production is damaged.

These physical parameters are mainly:

①、PH：

the PH value range of the culture water body is 6.5-8.5, which is the safe PH value range for fish growth, specified in the fishery water quality standard.

The optimum PH value of the fish fry cultivation stage is 7.5-8; the optimum PH value of the adult fish culture stage is 7-8.5. When the PH value is less than 6.5, the fishes in the water body are particularly sensitive to infectious fish diseases, and even if the fishes in the water body are not anoxic, the fishes have difficult breathing, but have low digestibility to feeds and slow growth.

When the PH value is too high, the ion NH4+ is converted into molecular ammonia NH3, the toxicity is increased, the water body is strongly alkaline, the gill tissue of fish is corroded, the respiratory disorder is caused, and the fish is choked when the pH value is severe. The strong alkaline water body also affects the activity of microorganisms and thus the degradation of organic matters by the microorganisms.

② . DO: molecular oxygen dissolved in water is called dissolved oxygen, and is commonly referred to as DO, expressed in milligrams of oxygen per liter of water

The content of dissolved oxygen in the culture water body is generally 5-8 mg/L, at least 4mg/L, and the fish is dysphoric and dyspnea and rapid in breathing when the oxygen is deficient, most of the fish is concentrated in surface water for activity, and when the oxygen is severe, the fish floats on a large amount of heads, swims powerfully and even chokes. The dissolved oxygen is not harmful in supersaturation, but can cause bubble disease of fish, especially in the stage of breeding offspring.

The sufficient dissolved oxygen in the water can inhibit the generation of toxic substances and reduce the content of the toxic substances, and when the dissolved oxygen is insufficient, ammonia and hydrogen sulfide are difficult to decompose and convert, so that the degree of harming the healthy growth of fish is very easy to achieve.

③ . Ammonia nitrogen

The molecular ammonia concentration of the fishery water quality standard of China is regulated to be less than 0.2mg/L, which is an ideal and safe water quality ammonia index;

The fish disease cannot be caused when the molecular ammonia concentration is below 0.2 mg/L; molecular ammonia concentration reaches 0.2-0.5 mg/L, so that the fish is slightly toxic and easy to attack; the concentration of molecular ammonia exceeds 0.5mg/L, so that the molecular ammonia has high toxicity to fishes, is extremely easy to cause poisoning and morbidity of the fishes, and even die in a large scale.

The ammonia nitrogen is mainly produced by decomposing aquatic animal feces, residual baits, animal and plant carcasses by bacteria. The higher the water temperature, PH, the greater the toxicity.

④ . Nitrite nitrogen:

Nitrite is an intermediate product in the process of converting ammonia into nitrate, is unstable, and can be converted into nitrate with lower toxicity to fish under the action of microorganisms when oxygen is sufficient, but can also be converted into ammonia nitrogen with higher toxicity when oxygen is deficient.

In general, the nitrite content (calculated as nitrogen) is lower than 0.1mg/L, and no damage is caused; when the concentration reaches 0.1-0.5 mg/L, the ingestion of fish is reduced, gills are dark purple red, the breathing is difficult, the swimming is slow, and the disturbance is caused; when the content is higher than 0.5mg/L, the fish swimming is not effective, the fish body is soft, the bottom of the buttocks is yellow, and certain organs are in failure, so that death is caused when serious.

⑤ . Temperature:

The water temperature directly affects the survival and growth of fish. Different fish require different water temperatures. The following three categories can be distinguished:

1. Warm water fish: the water temperature suitable for life is 20-30 ℃, such as: silver carp, bighead carp, grass carp, megalobrama amblycephala.

2. Hot water fish: the water temperature is suitably 25-34 ℃. Such as: tilapia and freshwater white pomfret.

3. Cold water fish: it is generally considered that the temperature range for the survival of cold water fish is 0 to 20 ℃ and the optimum temperature is 12 to 18 ℃, such as: rainbow trout, salmon.

Generally, in the temperature-adaptive range, the metabolism of fish is correspondingly increased, the ingestion is increased and the growth is accelerated along with the increase of the temperature.

⑥ . Transparency of the film

Generally, the transparency of the pond water body is kept at about 30 cm, and the water body with too high or too low transparency is not suitable for fish growth. The transparency of water is controlled to be 25-30 cm by fertilization and other methods in the early culture period (below 150 g), and the transparency is controlled to be 30-40 cm by water changing and other methods in the later culture period.

⑦ . Hydrogen sulfide:

The hydrogen sulfide in the water body is mainly generated by the biological action and the chemical action of the bottom sediment organic matters due to the hypoxia of the bottom layer of the fish pond, and has strong toxicity to fishes. The water quality requirements of fishery are as follows: the concentration of hydrogen sulfide in the fish pond is controlled below 0.1 mg/L.

In the cultivation process, the waste baits, the excretions and the secretions of the cultivated organisms and the residues are spoiled, pathogens and other impurities which are not ingested, so that the cultivation water body is deteriorated, the cultivation fish pond is polluted, the pollutants finally exist in the form of suspended particles, dissolved organic matters and ammonia nitrogen, and the pollutants can cause the change of harmful parameters such as PH, DO, ammonia nitrogen, nitrite nitrogen and the like. Otherwise, the eutrophication of the water body is caused, harmful water bloom is induced, and the cultivation production is damaged.

Disclosure of Invention

The invention aims to solve the problem that the impurity pollutants in the existing water body cultivation process easily cause the change of physical parameters of cultivation water, and provides a physical purification device for aquaculture water.

The invention solves the technical problems, and adopts the following technical scheme:

The physical purification device for the aquaculture water body comprises a container or a pool for aquaculture, wherein the container is connected with a purification system for physical purification of the water body, and the system consists of an aeration oxygenation coil pipe, an oxygen generator, an oxygen delivery pipe, a sensor, a controller, a heating device, a disinfection device and a maintenance-free full-automatic microporous filter;

The aeration oxygenation coil pipe is independently arranged at the bottom of the container and is connected with the oxygen generator through an oxygen delivery pipe; the oxygen generator 7 is arranged to carry out oxygenation and ammonia nitrogen removal through a pure physical method, when the sensor detects that oxygen is lower than the lower limit value, the control module controls the starting of the oxygenation device, when the sensor detects that oxygen is added to the upper limit value, the control module controls the stopping of oxygenation, in fish culture, as the density of culture is continuously improved, the demand for dissolved oxygen is also increased, the original dissolved oxygen supply and demand balance is broken, and when the oxygen consumption of cultured fish is larger than or smaller than the oxygen supply, the growth of the fish is limited. Anaerobic decomposition of organic matters, ammonia nitrogen and the like in the water can be caused by the anoxic water body, some toxic substances such as nitrite and the like are generated, and meanwhile, bacteria are easy to breed in the anoxic water body, so that a great deal of cultivated organisms die. Along with the increase of dissolved oxygen in the water body, the growth rate of the cultured organisms is accelerated, the feed coefficient is reduced, and the sufficient dissolved oxygen is the key for realizing stable and high yield of the circulating water culture.

① . When the dissolved oxygen content is high, the water quality substrate is in an oxidation state, the oxidation-reduction potential is high, and the valence-variable elements are in high valence state; oxidation state substances as are common in natural water: metal ions such as O2, so4-2, no3-, PO43-, and Fe3+, mn4+, cu2+, zn2+; if the water is severely anoxic, the final reduction of the organic decomposition is as follows: NH3, H2S, CH4, and the like. Some elements are often present in water simultaneously in various forms, for example, nitrogen is often present in four forms: NO3-, NO2-, N2, NH3. In uncontaminated oxygen-rich water, nitrogen is present mainly as high-priced No 3-.

② . In the water body rich in oxygen, the oxidation of organic matters is complete, and the final products are nontoxic substances such as CO2, H2O, NO-, SO 42-and the like; on the contrary, under the anoxic condition, the oxidation of the organic matters is incomplete, and toxic and harmful substances such as organic acid, amine and the like are generated, including fish, shrimp and crab, aquatic plants and feed are comprehensively spoiled.

③ . When oxygen is abundant, the living organism has enough O2 as a hydrogen acceptor, and then aerobic respiration is performed. The aerobionts can move smoothly, the aerobionts can oxidize and decompose organic matters rapidly and thoroughly, and the final product is harmless to the organisms. In contrast, if the dissolved oxygen in water is insufficient, the organism can only use some inorganic matters (NO 3-, SO42-, CO 32-and the like) or organic matters instead of O2 as hydrogen acceptors to perform anaerobic respiration. Only the anaerobic or facultative anaerobic microorganisms can normally move.

④ . The intermittent aeration bubble point of the mechanical pulser and the electronic pulser is small and broken, and the characteristics of sub-microcosmic bubble points such as merging, aggregation, collapse and the like are not easy to occur. Since the original bubble point particle size of the novel microporous material is in the order of microns or sub-microns. The broad sub-microscopic bubble point pair destroys large organic molecules, the impact groups of the "electron slots" are extracted from the molecular framework, the organic matter is broken down into smaller fragments by oxidation, and the impact groups are reduced. Oxygen is the most common, strongest "electron channel". Finally, the water floats on the surface of the water body under the action mechanism of air floatation and stripping, and is decomposed by aerobic bacteria, sunlight, ultraviolet rays and other natural conditions.

The heating device consists of a heater drain valve, a heating device water inlet pipe and a heating device water outlet pipe, the heating device water inlet pipe is connected with the sterilizing device, and the heating device water outlet pipe is connected with the container;

The sterilizing device consists of a sterilizing device water inlet pipe, a water tank, an ultrasonic transducer, a power driver and a sterilizing device water outlet pipe, wherein the sterilizing device water inlet pipe is connected with a filter, and the sterilizing device water outlet pipe is connected with a heating device;

The ultrasonic transducer can generate ultrasonic waves, water generates a cavitation effect under the effect of ultrasonic wave radiation, and the water is subjected to a series of dynamic cyclic processes of alternating oscillation, expansion, compression, collapse and the like under the cavitation effect, so that instantaneous and microscopic high temperature (> 5000K) and high pressure (> 5 multiplied by 107 Pa) are generated, and hot spots (Hotopot) are formed. After a few microseconds, the hot spot cools instantaneously, accompanied by intense shock waves and micro-jets up to 100m/s, creating an extreme physical environment for the organic matter. The O-H bond of water is broken to generate hydrogen peroxide, so that a chemical reaction channel is opened, the chemical reaction speed is increased, and pollutants in the water degrade the hydroxyl radical under the actions of high temperature, high pressure and hydroxyl radical. The water is a good conductor of sound waves, the high-frequency waves propagate in the water with little attenuation, and can be far penetrated, for example, the effective emission radius of an ultrasonic device with 220V/80W is 100-180 m, and the effective emission angle is 180 degrees. Under the action of ultrasonic wave specific frequency, various bacterial cells generate resonance to make cell membranes shake and crack, namely self-decay and death, float up and sink down. Does not cause secondary pollution and has no toxic or harmful effect on other aquatic organisms and human beings. Further purifying the water body.

The maintenance-free full-automatic microporous filter consists of a filter water inlet pipe, a filter shell, a filter pipe, a blow-down pipe, a tail material box, a punching pipe for flushing attachments on the outer wall of the filter pipe and a filter water outlet pipe, wherein the filter water inlet pipe is connected with a container, the filter water outlet pipe is connected with a disinfection device, and the filter shell is connected with the tail material box through the blow-down pipe;

The sensor is arranged in the container and is connected with the controller, the controller consists of a signal control processor, a signal input control line, a signal output control line, an anode power interface and a cathode power interface, the anode power interface is connected with the anode of the direct current power supply, the cathode power interface is connected with the cathode of the direct current power supply, the signal control processor is connected with the sensor through the signal input control line, and the signal control processor is respectively connected with the heating device, the sterilizing device and the maintenance-free full-automatic microporous filter through the signal output control line so as to realize the automatic control of the physical purification of the water body.

The aeration oxygenation coil pipe adopts a microporous aeration oxygenation coil pipe so as to form oxygen bubbles with the particle size of nanometer level in the container.

The ultrasonic transducer is arranged in the water tank and connected with the power driver so as to drive the ultrasonic transducer to work.

The aeration oxygenation is different from the mechanical pulser or the electronic pulser, and has the characteristics that the initial bubble point particle size can form micron level, when the dissolved oxygen content is high, the water quality substrate is in an oxidation state, the oxidation-reduction potential is high, and the valence-variable elements are in high valence state; oxidation state substances as are common in natural water: metal ions such as O2, so4-2, no3-, PO43-, and Fe3+, mn4+, cu2+, zn2+; if the water is severely anoxic, the final reduction of the organic decomposition is as follows: NH3, H2S, CH4, etc.; some elements are often present in water simultaneously in various forms, for example, nitrogen is often present in four forms: NO3-, NO2-, N2, NH3; in uncontaminated oxygen-rich water, nitrogen is mainly present as high-priced No 3-; in the water body rich in oxygen, the oxidation of organic matters is complete, and the final products are nontoxic substances such as CO2, H2O, NO-, SO 42-and the like; on the contrary, under the anoxic condition, the oxidation of the organic matters is incomplete, and toxic and harmful substances such as organic acid, amine and the like are generated, including fish, shrimp and crab, aquatic plants and feed are comprehensively spoiled;

When oxygen is rich, the living beings have enough O2 as hydrogen acceptors, so that aerobic respiration is carried out, the oxygen decomposition of the oxygen acceptors to organic matters is rapid and thorough, and the final product is harmless to the living beings; in contrast, if the dissolved oxygen in the water is insufficient, the organism can only use some inorganic matters (NO 3-, SO42-, CO 32-and the like) or organic matters to replace O2 as hydrogen acceptors to perform anaerobic respiration; only the anaerobic or facultative anaerobic microorganisms can normally move.

The filter tube is provided with a plurality of filter tubes which are distributed in the filter shell in an array manner, the inner holes of the filter tubes are isolated from the inner cavity of the filter shell through the outer wall of the filter tube, the sewage is conveyed into the inner cavity of the filter shell by the water inlet pipe, and the water in the inner cavity of the filter shell penetrates through the outer wall of the filter tube and then enters the inner holes of the filter tubes to realize filtration.

The inner cavity of the filter shell is provided with a water pressure sensor, the water pressure sensor is connected with a signal control processor through a signal input control line, the signal control processor is connected with the punching pipe through a signal output control line, and when the water pressure sensor detects that the water pressure reaches a set value, the signal control processor controls the punching pipe to work to automatically wash the outer wall of the filter pipe.

The jet angle of the stamping pipe is 0-90 degrees with the central line of the filter pipe, when the stamping pipe adopts 0 degree, a circle of stamping pipe is required to be arranged on the outer wall of the filter pipe and extend into the filter shell from the top or bottom of the filter shell, attachments on the outer wall of the filter pipe are washed by high-pressure water which is sprayed out of the stamping pipe and is parallel to the filter pipe, when 30 degrees, 60 degrees or 90 degrees are adopted, a plurality of circles of stamping pipes which are vertically and alternately distributed are required to be arranged around each filter pipe, each stamping pipe extends into the shell after penetrating through the filter shell, and the outer wall of the filter pipe is directly washed by the sprayed high-pressure water.

The filter pipe is a microporous filter pipe, and the pore diameter of micropores in the pipe wall of the microporous filter pipe is 0.45 mu m-0.08 mu m; the aperture of the outer surface of the microporous filter tube is 12 mu m-500 mu m.

The heater is characterized in that a heater bracket is arranged at the bottom of the heater, the heater is connected with a signal output control line of a signal control processor, the temperature in the container is detected through a sensor and is transmitted to the signal control processor through the signal input control line, the signal control processor controls the heater to start heating through the signal output control line when the water temperature is lower than the set temperature through comparison with the set temperature, and the signal control processor controls the heater to stop working through the signal output control line when the water temperature reaches the set temperature.

The sensor comprises a temperature sensor, a PH sensor, a DO sensor, an ammonia nitrogen sensor, a nitrite sensor, a hydrogen sulfide sensor and a water permeability sensor.

At least one water pump is arranged on a pipeline connected with the heating device, the sterilizing device and the maintenance-free full-automatic microporous filter so as to control water to flow in the purifying system.

The beneficial effects of the invention are as follows: the device keeps the water temperature in the container constant through the heating device, can remove large-particle pollutants such as sundries in the water through the maintenance-free full-automatic microporous filter, and remove tiny harmful substances through the sterilizing device, thereby ensuring that the water quality of the container stably meets the cultivation use, and simultaneously realizing automatic control through the cooperation of the controller and the sensor,

The maintenance-free full-automatic microporous filter provided by the application filters large-particle impurities of the water quality of the culture pond through the microporous filter pipe, so that the water in the culture pond is free from impurities, thereby avoiding the harmful parameters of the added water quality, simultaneously, the water quality parameters are detected in real time through the sensor, the values of the favorable parameters are maintained in a set range, and a sterilizing device is arranged after the filtering device is cleaned, so that the quality of the culture water is further improved.

The hydraulic pressure sensor detects the working state of the punching pipe controlled by the internal pressure fit controller in the maintenance-free full-automatic microporous filter, so that the automatic cleaning and blockage prevention can be realized, and the automation degree of the whole device is further improved.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present invention.

FIG. 2 is a schematic diagram of a maintenance-free fully automatic microporous filter according to the present invention.

The graphic indicia: 1. a container; 2. An aeration oxygenation coil; 3. an oxygen therapy tube; 4. an oxygen generator; 5. A sensor; 6. a controller; 601. a signal input control line; 602. a signal output control line; 603. a positive power interface; 604. a negative power interface; 605. a signal control processor; 7. a heating device; 701. a heater; 702. a water discharge valve of the heating device; 703. a water inlet pipe of the heating device; 704. a water outlet pipe of the heating device; 705. a heater bracket; 8. a sterilizing device; 801. a water inlet pipe of the disinfection device; 802. a water tank; 803. an ultrasonic transducer; 804. a power supply driver; 805. a water outlet pipe of the sterilizing device; 9. maintenance-free full-automatic microporous filter; 901. a filter inlet pipe; 902. a filter housing; 903. a filter tube; 904. a blow-down pipe; 905. stamping a tube; 906. a filter drain pipe; 907. a tail box; 908. a sealing separator; 10. and (3) a water pump.

Detailed Description

The specific embodiments shown in the drawings are as follows:

The aquaculture water body physical purification device comprises a container 1 or a pool for aquaculture, wherein a purification system for forming water body physical purification is connected to the container 1, and the system consists of an aeration oxygenation coil pipe 2, an oxygen generator 4, an oxygen delivery pipe 3, a sensor 5, a controller 6, a heating device 7 for maintaining the constant temperature of water in the container, a disinfection device 8 and a maintenance-free full-automatic microporous filter 9;

the aeration oxygenation coil 2 is independently arranged at the bottom of the container 1 and is connected with the oxygen generator 4 through the oxygen delivery pipe 3 so as to maintain the constant dissolved oxygen in the container 1;

the heating device 7 consists of a heater 701, a heating device drain valve 702, a heating device water inlet pipe 703 and a heating device water outlet pipe 704, wherein the heating device water inlet pipe 703 is connected with the sterilizing device 8, and the heating device water outlet pipe 704 is connected with the container 1 through a pipeline;

The sterilizing device 8 consists of a sterilizing device water inlet pipe 801, a water tank 802, an ultrasonic transducer 803, a power driver 804 and a sterilizing device water outlet pipe 805, wherein the sterilizing device water inlet pipe 801 is connected with the filter 9, and the sterilizing device water outlet pipe 805 is connected with a heating device water inlet pipe 703 of the heating device 7 through a pipeline;

The maintenance-free full-automatic microporous filter 9 consists of a filter water inlet pipe 901, a filter shell 902, a filter pipe 903, a drain pipe 904, a tail stock box 907, a punching pipe 905 and a filter water outlet pipe 906, wherein the punching pipe 905 is used for flushing attachments on the outer wall of the filter pipe 903, the filter water inlet pipe 901 is connected with a container 1 through a pipeline, a water pump 10 is further arranged on the pipeline, the filter water outlet pipe 906 is connected with a disinfection device water inlet pipe 801 of a disinfection device 8 through a pipeline, the water pump 10 is arranged on the pipeline, the punching pipe 905 is connected with the container 1 (or connected with other clean water sources) through a pipeline, the water pump 10 is arranged on the pipeline, the filter shell 902 is connected with the tail stock box 907 through the drain pipe 904, and the drain pipe 904 is normally in a closed state;

A sealing clapboard 908 is arranged in the inner cavity of the filter housing 902, the sealing clapboard 908 divides the cleaning box body into two chambers, the bottom of the filter tube 903 is fixed at the bottom of the filter housing 902 to realize the bottom sealing of the filter tube 903, the top of the filter tube 903 penetrates through the sealing clapboard 908 and extends into the chamber above the sealing clapboard 908 to realize the isolation of the inner hole of the filter tube 903 from the inner cavity of the filter housing 902, the filter water inlet pipe 901 is communicated with the chamber below the sealing clapboard in the filter housing 902, the filter water outlet pipe 906 is communicated with the chamber above the sealing clapboard in the filter housing 902 to realize the filtration of sewage through the filter tube 903 and then the sewage is discharged out of the filter housing 902,

The sensor 5 is arranged in the container 1 and is connected with the controller 6, the controller 6 consists of a signal control processor 605, a signal input control line 601, a signal output control line 602, a positive power interface 603 and a negative power interface 604, the positive power interface 603 is connected with the positive electrode of the direct current power supply, the negative power interface 604 is connected with the negative electrode of the direct current power supply, the signal control processor 605 is connected with the sensor 5 through the signal input control line 601, and the signal control processor 605 is respectively connected with the heating device 7, the sterilizing device 8 and the maintenance-free full-automatic microporous filter 9 through the signal output control line 602 so as to realize the automatic control of the physical purification of the water body.

The aeration oxygenation coil 2 adopts a microporous aeration oxygenation coil so as to form oxygen bubbles with the particle size of nanometer grade in the container 1.

The ultrasonic transducer 803 is built into the water tank 802 and connected to a power driver 804 to facilitate operation of the ultrasonic transducer 803.

The filter tube 903 is provided with a plurality of filter tubes 903 which are distributed in an array in the filter housing 902, the inner holes of the filter tube 903 are isolated from the inner cavity of the filter housing 902 by the outer wall of the filter tube 903, the sewage is conveyed into the inner cavity of the filter housing by the water inlet pipe, the water in the inner cavity of the filter housing penetrates through the outer wall of the filter tube and then enters the inner holes of the filter tube to realize filtration, and when the filter tube 903 is blocked, the outer wall of the filter tube 903 is automatically washed by the stamping tube 905.

The inner cavity of the filter housing 902 is provided with a water pressure sensor, the water pressure sensor is connected with the signal control processor 605 through the signal input control line 601, the signal control processor 605 is connected with the punching tube 905 through the signal output control line 602, when the water pressure sensor detects that the water pressure reaches a set value, the signal control processor 605 controls the punching tube 905 to work to automatically wash the outer wall of the filter tube 903, when the water pressure in the filter housing 902 is larger than a set water pressure value, the punching tube 905 is controlled to work to start cleaning, as the water pressure in the filter housing 902 is larger than the set water pressure value, the impurities attached to the outer wall of the filter tube 903 gradually increase, so that the water filtered by the blocking filter tube 903 gradually decreases, the water speed entering the filter housing 902 is unchanged, at the moment, the water pressure in the filter housing 902 gradually increases, if the water pressure is too large, dynamic circulation of the water is influenced, even system faults are caused, and therefore, the self cleaning can be realized by monitoring the water pressure change, the bottom of the filter housing 902 is provided with a drain pipe 904, and the cleaned sewage enters a tail tank 907 after being discharged from the drain pipe 904.

The injection angle of the stamping tube 905 forms an included angle of 0-90 degrees with the central line of the filter tube.

The filter tube 903 is a microporous filter tube, and the pore diameter of micropores in the wall of the microporous filter tube is 0.45 mu m-0.08 mu m; the aperture of the outer surface of the microporous filter tube is 12 mu m-500 mu m.

The bottom of the heater 701 is provided with a heater bracket 705, the heater 701 is connected with a signal output control line 602 of the signal control processor 605, the temperature in the container 1 is detected by the sensor 5 and is transmitted to the signal control processor 605 by the signal input control line 601, the signal control processor 605 controls the heater 701 to work to start heating by the signal output control line when the water temperature is lower than the set temperature by comparing with the set temperature, and the signal control processor 605 controls the heater 701 to stop working by the signal output control line when the water temperature reaches the set temperature.

The sensor 5 comprises a temperature sensor for detecting temperature, a PH sensor for detecting PH value, a DO sensor for detecting dissolved oxygen content, an ammonia nitrogen sensor for detecting ammonia nitrogen content, a nitrite sensor for detecting nitrite, a hydrogen sulfide sensor for detecting hydrogen sulfide and a water permeability sensor for detecting water transparency.

The technical scheme and the embodiment of the invention are not limited, and the technical scheme and the embodiment which are equivalent or have the same effect as those of the technical scheme and the embodiment of the invention are all within the protection scope of the invention.

Claims

1. The utility model provides an aquaculture water body physical purification device, includes a container (1) of breed usefulness, its characterized in that: the container (1) is connected with a purifying system for physically purifying the water body, and the system consists of an aeration oxygenation coil pipe (2), an oxygen generator (4), an oxygen delivery pipe (3), a sensor (5), a controller (6), a heating device (7), a sterilizing device (8) and a maintenance-free full-automatic microporous filter (9);

The aeration oxygenation coil pipe (2) is independently arranged at the bottom of the container (1) and is connected with the oxygen generator (4) through the oxygen delivery pipe (3);

The heating device (7) consists of a heater (701), a heating device drain valve (702), a heating device water inlet pipe (703) and a heating device water outlet pipe (704), wherein the heating device water inlet pipe (703) is connected with the sterilizing device (8), and the heating device water outlet pipe (704) is connected with the container (1);

The disinfection device (8) consists of a disinfection device water inlet pipe (801), a water tank (802), an ultrasonic transducer (803), a power driver (804) and a disinfection device water outlet pipe (805), wherein the disinfection device water inlet pipe (801) is connected with a maintenance-free full-automatic microporous filter (9), and the disinfection device water outlet pipe (805) is connected with a heating device (7);

The maintenance-free full-automatic microporous filter (9) consists of a filter water inlet pipe (901), a filter shell (902), a filter pipe (903), a drain pipe (904), a tail stock box (907), a punching pipe (905) for flushing attachments on the outer wall of the filter pipe (903) and a filter drain pipe (906), wherein the filter water inlet pipe (901) is connected with a container (1), the filter drain pipe (906) is connected with a disinfection device (8), and the filter shell (902) is connected with the tail stock box (907) through the drain pipe (904);

The filter pipe (903) is provided with a plurality of filter pipes (902) which are distributed in an array, the inner holes of the filter pipes (903) are isolated from the inner cavity of the filter casing (902) through the outer wall of the filter pipe (903), the filter water inlet pipe (901) conveys sewage into the inner cavity of the filter casing, the water in the inner cavity of the filter casing penetrates through the outer wall of the filter pipe and then enters the inner holes of the filter pipe to realize filtration, and when the filter pipe (903) is blocked, the stamping pipe (905) automatically washes the outer wall of the filter pipe (903);

A sealing partition plate (908) is arranged in an inner cavity of the filter shell (902), the sealing partition plate (908) divides the cleaning box body into two chambers, the bottom of the filter pipe (903) is fixed at the bottom of the filter shell (902) to realize the bottom sealing of the filter pipe (903), the top of the filter pipe (903) penetrates through the sealing partition plate (908) to extend into the chamber above the sealing partition plate (908) so as to realize the isolation of an inner hole of the filter pipe (903) from the inner cavity of the filter shell (902), the filter water inlet pipe (901) is communicated with the chamber below the sealing partition plate in the filter shell (902), and the filter water outlet pipe (906) is communicated with the top of the chamber above the sealing partition plate in the filter shell (902), so that sewage is discharged out of the filter shell (902) after being filtered by the filter pipe (903);

the jet angle of the stamping pipe forms an included angle of 0 DEG with the central line of the filter pipe, a circle of stamping pipe is arranged on the outer wall of the filter pipe, the stamping pipe penetrates through the side wall from the top or the bottom of the filter shell and extends into the filter shell for installation, and attachments on the outer wall of the stamping pipe are washed by high-pressure water which is ejected from the stamping pipe and is parallel to the filter pipe;

The sensor (5) is arranged in the container (1) and is connected with the controller (6), the controller (6) is composed of a signal control processor (605), a signal input control line (601), a signal output control line (602), an anode power interface (603) and a cathode power interface (604), the anode power interface (603) is connected with the anode of a direct current power supply, the cathode power interface (604) is connected with the cathode of the direct current power supply, the signal control processor (605) is connected with the sensor (5) through the signal input control line (601), and the signal control processor (605) is connected with a heating device (7), a sterilizing device (8) and a maintenance-free full-automatic microporous filter (9) through the signal output control line (602) respectively so as to realize automatic control of physical purification of a water body.

2. The aquaculture water physical purification device according to claim 1, wherein: the aeration oxygenation coil (2) adopts a microporous aeration oxygenation coil so as to form oxygen bubbles with the particle size of nanometer level in the container (1).

3. The aquaculture water physical purification device according to claim 1, wherein: the ultrasonic transducer (803) is arranged in the water tank (802) and is connected with the power driver (804) so as to drive the ultrasonic transducer (803) to work.

4. The aquaculture water physical purification device according to claim 1, wherein: the inner cavity of the filter shell (902) is provided with a water pressure sensor, the water pressure sensor is connected with a signal control processor (605) through a signal input control line (601), the signal control processor (605) is connected with a stamping pipe (905) through a signal output control line (602), and when the water pressure sensor detects that the water pressure reaches a set value, the signal control processor (605) controls the stamping pipe (905) to work so as to automatically flush the outer wall of the filter pipe (903).

5. The aquaculture water physical purification device according to claim 1, wherein: the heater bracket (705) is installed to heater (701) bottom, heater (701) are connected with signal output control line (602) of signal control processor (605), detect temperature in container (1) through sensor (5) and transmit to signal control processor (605) through signal input control line (601), signal control processor (605) through with set temperature contrast, when temperature is less than the set temperature, signal control processor (605) through signal output control line control heater (701) work start heating, when temperature reaches the set temperature, signal control processor through signal output control line control heater (701) stop work.

6. The aquaculture water physical purification device according to claim 1, wherein: the sensor (5) comprises a temperature sensor, a PH sensor, a DO sensor, an ammonia nitrogen sensor, a nitrite sensor, a hydrogen sulfide sensor and a water permeability sensor.

7. The aquaculture water physical purification device according to claim 1, wherein: the heating device (7), the sterilizing device (8) and the maintenance-free full-automatic microporous filter (9) are connected through pipelines, and at least one water pump (10) is arranged on the pipelines so as to control water to flow in the purifying system.