Annular circulating water treatment system for industrial aquaculture net cage

Abstract

The utility model relates to an industrial culture net cage annular circulating water treatment system, which is applied to the technical field of industrial culture and comprises a plurality of net cages for aquaculture, and each net cage is relatively independent, so that the size and the water depth of each net cage can be freely adjusted according to cultured aquatic products; meanwhile, the multiple net cages are connected with the physical filtering bin and the annular biochemical filtering bin through drainage pipes, the biochemical filtering bin is connected with the multiple net cages through water inlet pipes, water quality detection sensors are arranged in the net cages, and when the water quality in the net cages is detected to be unqualified, an electric drainage valve and an electric water inlet valve are opened through a controller; water with unqualified water quality in the net cage enters the physical filter bin through the electric drain valve for physical filtration, then is subjected to biochemical filtration through the biochemical filter bin, and finally returns to the net cage through the electric water inlet valve; unified filtration of a plurality of net cages is achieved, and meanwhile the annular biochemical filter bin can reduce the occupied area.

Description

TECHNICAL FIELD

[0001] The utility model relates to industrial breeding technical field, concretely relates to a kind of industrialization breeding net cage annular circulating water treatment system. BACKGROUND

[0002] The existing integrated breeding integrates biochemical and filtration system together, to meet the very high density breeding, the biochemical filtration part of integrated machine needs to be made very large, the actual occupied area is large;And in the existing breeding system, each system usually has only one fish tank, to adapt to most fish, the fish tank water body is usually designed to be deep, and the single water body is large;But part of shallow water breeding and fry need small water body breeding, which will lead to the water body of existing fish tank is wasted seriously, and the water body utilization rate is not high, and because the water body is large, the survival rate of fry in water body is low, and multiple screening work will be carried out during fry rearing, when the water body is large, screening work is difficult to carry out. SUMMARY

[0003] Therefore, the utility model aims at providing a kind of industrialization breeding net cage annular circulating water treatment system, to solve the problem in the prior art, breeding system usually has only one fish tank, fish tank water body is deep, and single water body is large;When breeding part of shallow water breeding and fry, it will lead to water body waste seriously, and the water body utilization rate is not high, and because the water body is large, the survival rate of fry in water body is low, and multiple screening work will be carried out during fry rearing, when the water body is large, screening work is difficult to carry out.

[0004] The utility model provides a kind of industrialization breeding net cage annular circulating water treatment system, the system includes:

[0005] A plurality of net cages for aquaculture, each net cage is provided with electric drain valve, each net cage is connected with drain pipe by electric drain valve;

[0006] The drain pipe is also connected with the water inlet of physical filtration bin, for draining sewage in net cage into the physical filtration bin;The physical filtration bin carries out physical filtration to large particle solid in sewage;

[0007] The water outlet of the physical filtration bin is connected with the outer ring inlet of annular filtration bin, and the outer ring of the annular filtration bin is provided with a plurality of biochemical filtration modules, which sequentially carry out biochemical filtration treatment to sewage entering itself;

[0008] The inner ring of the annular filtration bin is provided with clean water pool, and the clean water pool is connected with the outer ring outlet of annular filtration bin, for storing clean water filtered by the plurality of biochemical filtration modules of outer ring;

[0009] The water purification tank is provided with an inlet pipe connected with an electric inlet valve of each net cage for discharging clean water in the water purification tank into each net cage;

[0010] Each net cage is provided with a water quality detection sensor for detecting the water quality of water in the net cage.

[0011] The water quality detection sensor is connected with a controller connected with the electric outlet valve and the electric inlet valve, and the controller is used for controlling the opening and closing of the electric outlet valve and the electric inlet valve.

[0012] Preferably,

[0013] The plurality of biochemical filter modules comprise a first sterilization bin, a heat exchange bin, a first biochemical bin, a second biochemical bin, a third biochemical bin, a sedimentation bin and a second sterilization bin.

[0014] The inlet of the outer ring of the annular filter bin is arranged on the first sterilization bin, the first sterilization bin is connected with the heat exchange bin, the heat exchange bin is connected with the first biochemical bin, the first biochemical bin is connected with the second biochemical bin, the second biochemical bin is connected with the third biochemical bin, the third biochemical bin is connected with the sedimentation bin, and the sedimentation bin is connected with the second sterilization bin.

[0015] The outlet of the outer ring of the annular filter bin is arranged on the second sterilization bin.

[0016] Preferably,

[0017] The first sterilization bin is used for sterilizing the entering sewage by ultraviolet rays.

[0018] The heat exchange bin is used for heating or cooling the entering sewage by an external heating device.

[0019] The first biochemical bin is used for anaerobic treatment of the entering sewage.

[0020] The second biochemical bin is used for aerobic treatment of the entering sewage.

[0021] The third biochemical bin is used for biochemical material adsorption and filtration treatment of the entering sewage.

[0022] The sedimentation bin is used for sedimentation treatment of the entering sewage.

[0023] The second sterilization bin is used for ozone sterilization treatment of the entering sewage.

[0024] Preferably,

[0025] The physical filter bin comprises a slow flow area and a filter area.

[0026] The slow flow area is provided with a water inlet connected with the drain pipe.

[0027] The filtering area is provided with a water outlet connected with the outer ring inlet of the annular filtering bin.

[0028] The slow flow area is used for slowing down water flow, and the filtering area is used for filtering large-particle solid matters above 30 um in sewage through the way of drum microfiltration.

[0029] Preferably,

[0030] The clean water pool is provided with a water pump for pumping clean water in the clean water pool into the water inlet pipe.

[0031] Preferably,

[0032] The secondary biochemical bin is provided with a plurality of biochemical compartments, adjacent biochemical compartments are isolated by a partition plate, and each biochemical compartment is filled with biochemical filter material.

[0033] Each biochemical compartment is of an up-in and down-out structure.

[0034] Preferably,

[0035] The bottom of the secondary biochemical bin is provided with an aeration device for aeration and oxygenation treatment of the secondary biochemical bin.

[0036] The technical scheme provided by the embodiment of the utility model can have the following beneficial effects:

[0037] The application is provided with a plurality of net cages for aquaculture, each net cage can breed one kind of aquatic product, and the size and water depth of each net cage can be freely adjusted according to the bred aquatic product because each net cage is relatively independent; meanwhile, the plurality of net cages are connected with the physical filtering bin and the annular biochemical filtering bin through the drain pipe, and the annular filtering bin is connected with the plurality of net cages through the water inlet pipe; the water quality detection sensor is arranged in the net cage, when the water quality in the net cage is unqualified, the controller opens the electric drain valve and the electric water inlet valve, the water in the net cage with unqualified water quality enters the physical filtering bin for physical filtration through the electric drain valve, then is subjected to biochemical filtration through the annular filtering bin, and finally returns to the net cage through the electric water inlet valve; the unified filtration of the plurality of net cages is realized, and the annular biochemical filtering bin can also reduce the floor area.

[0038] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the application. BRIEF DESCRIPTION OF DRAWINGS

[0039] The drawings incorporated into the specification and forming a part thereof show embodiments consistent with the application and, together with the specification, serve to explain the principles of the application.

[0040] Figure 1 is a schematic diagram of the overall structure of an industrialized aquaculture net cage ring-shaped circulating water treatment system according to an example embodiment;

[0041] Figure 2 is a schematic diagram of the control system of an industrialized aquaculture net cage ring-shaped circulating water treatment system according to another example embodiment;

[0042] In the drawings: 1 - water quality detection sensor, 2 - controller, 3 - electric drain valve, 4 - electric water inlet valve. DETAILED DESCRIPTION

[0043] The example embodiments will be described in detail herein with reference to the drawings. In the following description, unless otherwise indicated, like numbers in the different drawings represent the same or similar elements. The following example embodiments described in the detailed description are not meant to be an all-inclusive description of all aspects of the application. Rather, they are merely example devices and methods consistent with some aspects of the application as detailed in the appended claims.

[0044] Embodiment One

[0045] Figure 1 is a schematic diagram of the overall structure of an industrialized aquaculture net cage ring-shaped circulating water treatment system according to an example embodiment, the system comprising:

[0046] a plurality of net cages for aquaculture, each net cage being provided with an electric drain valve 3, each net cage being connected to a drain pipe through the electric drain valve 3;

[0047] the drain pipe is further connected to a water inlet of a physical filtration bin for draining the wastewater in the net cage into the physical filtration bin; the physical filtration bin performs physical filtration on the large-particle solid matters in the wastewater;

[0048] an outer ring of the physical filtration bin is connected to an outer ring inlet of a ring-shaped filtration bin, the outer ring of the ring-shaped filtration bin is provided with a plurality of biochemical filtration modules for sequentially performing biochemical filtration on the wastewater entering thereinto;

[0049] an inner ring of the ring-shaped filtration bin is provided with a clean water pool, the clean water pool is connected to an outer ring outlet of the ring-shaped filtration bin for storing the clean water filtered by the plurality of biochemical filtration modules of the outer ring;

[0050] a water inlet pipe is provided in the clean water pool, the water inlet pipe is connected to an electric water inlet valve 4 of each net cage for draining the clean water in the clean water pool into each net cage;

[0051] a water quality detection sensor 1 is provided in each net cage for detecting the water quality of the water in the net cage;

[0052] The water quality detection sensor 1 is connected to the controller 2, the controller 2 is connected to the electric drainage valve 3 and the electric water inlet valve 4 respectively, the controller 3 is used for controlling the opening and closing of the electric drainage valve 3 and the electric water inlet valve 4, as shown in the attached Figure 2

[0053] It can be understood that the modular net cage is made of food-grade Oxford barrels and can be made into various specifications; and the water treatment module (physical filter bin plus annular filter bin) is connected through pipelines and water circulation, various fish and fry are bred in the modular net cage;

[0054] Each net cage is provided with a water quality detection sensor 1, which can detect the water quality parameters of each net cage online and send them to the controller 2, the controller 2 is pre-set with standard water quality parameters, if the water quality of a certain net cage detected by the water quality detection sensor 1 does not meet the pre-set standard water quality parameters, the controller 2 controls the electric drainage valve and the electric water inlet valve of the net cage to open, the sewage in the net cage enters the drainage pipe through the opened electric drainage valve, a booster pump can be arranged in the drainage pipe to accelerate the sewage into the physical filter bin;

[0055] The physical filter bin has two functions, namely, slowing down the water flow and mechanical filtering, and filtering out the solid matters (impurities in water, fish excrement, leftover feed, oily substances in feed, other pollutants excreted by fish, etc.) larger than 30um in water through the way of drum microfiltration and discharging them;

[0056] The wastewater filtered by the physical filter enters the outer ring of the annular filter bin, and then passes through the heat exchange bin, the first biochemical bin, the second biochemical bin, the third biochemical bin, the sedimentation bin and the second kill bin in turn; the second kill bin is provided with an outer ring outlet of the annular filter bin, and the outer ring outlet is connected to the inner ring of the annular filter bin, the inner ring of the annular filter bin is provided with a clean water pool for storing clean water filtered by biochemical filtering, and the clean water pool is provided with a water pump for pumping the clean water in the clean water pool into the drainage pipe, and the drainage pipe is connected to the electric water inlet valve 4 of each net cage, since only the electric water inlet valve 4 of the net cage that needs to be purified is opened, the clean water in the clean water pool returns to the net cage, completing a water circulation;

[0057] ​The outer ring of the annular filtering bin is sterilized by the first sterilization bin through ultraviolet rays; the water body is heated or cooled by external heating equipment in the heat exchange bin; the sewage is subjected to anaerobic treatment in the first biochemical bin, specifically, the water body enters the filler layer of the first biochemical bin without aeration to avoid direct contact with air to form an anaerobic environment; the sewage is subjected to aerobic treatment in the second biochemical bin, specifically, a plurality of biochemical compartments are arranged in the second biochemical bin, each compartment is isolated by a partition, the compartment is filled with corresponding biochemical filter material, the biochemical filter material is modularized for easy installation, cleaning and replacement; each compartment is formed in an up-in and down-out structure to facilitate the full contact between the water body and the filler, increase the filtering effect, and the bottom of the compartment is provided with an aeration device for aeration and oxygenation and stripping; not only the trickling biochemical effect can be achieved, but also the stripping function can be achieved to strip out the toxic and harmful gases in the water body and increase the dissolved oxygen of the water body, which is mainly used for allowing most of the decomposing bacteria to attach to the material surface to reproduce and continuously decompose and digest the organic matter in the water; this link needs to be continuously aerated to allow the natural beneficial bacteria in the water body to breed and form a thick biochemical film on the filter material; the purpose of reducing ammonia nitrogen, nitrite, sulfide gas, phosphate and the like in the water is achieved; the sewage is subjected to adsorption and filtration treatment in the third biochemical bin, specifically, a plurality of porous materials are arranged in the third biochemical bin to adsorb the entering sewage, the porous materials include ceramic rings, coral stones, activated carbon and the like to improve the reproduction of nitrifying bacteria, decompose the nitrite and ammonia that cannot be decomposed in the second biochemical bin again, and adsorb various floating impurities and the like; the sewage is subjected to sedimentation in the sedimentation bin, since a part of the dead bacteria is brought in by the water flow after biochemical filtration, the dead bacteria are therefore sedimented to the bottom of the sedimentation bin through sedimentation; finally, the sewage is subjected to ozone sterilization in the second sterilization bin to realize secondary sterilization of the water body and deodorization and decolorization of the water body, so that the water body becomes a breedable water body and enters the clean water tank in the inner ring of the annular filtering bin.

[0058] It can be understood that the same or similar parts in the above embodiments can be mutually referred to, and the contents not described in detail in some embodiments can be referred to the same or similar contents in other embodiments.

[0059] It should be noted that, in the description of the present application, the terms "first", "second" and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, in the description of the present application, unless otherwise specified, the meaning of "a plurality of" is at least two.

[0060] Any procedural or methodological descriptions in flow charts or otherwise described herein can be understood to represent modules, segments, or portions of code that include executable instructions for implementing the specific logical functions or steps, and the scope of preferred embodiments of the present application includes additional implementations in which the functions are performed in a different order, including substantially simultaneously, or in reverse order, as will be understood by those skilled in the art to which embodiments of the present application pertain.

[0061] It should be understood that portions of the present application can be realized with hardware, software, firmware or a combination thereof. In the above embodiments, a plurality of steps or methods can be realized as software or firmware to be executed by a suitable instruction-executing system and stored in a storage. For example, if realized with hardware, and as in another embodiment, any one or a combination of the following technologies known in the art can be used: discrete logic circuitry having logic gates for implementing logic functions on data signals, application specific integrated circuits having appropriate combinational logic gates, programmable gate arrays (PGA), field programmable gate arrays (FPGA), and the like.

[0062] Those skilled in the art can understand that all or part of the steps carried out by the above-mentioned embodiments can be completed by programs instructing relevant hardware, and the programs can be stored in a computer-readable storage medium, and when executed, include one or a combination of steps of the method embodiments.

[0063] In addition, each functional unit in each embodiment of the present application can be integrated in one processing module, or each unit can be physically present separately, or two or more units can be integrated in one module. The above-mentioned integrated module can be realized in the form of hardware or in the form of a software functional module. When the integrated module is realized in the form of a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0064] The above-mentioned storage medium can be a read-only memory, a magnetic disk or an optical disk, etc.

[0065] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0066] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and that variations, modifications, substitutions and changes can be made by those skilled in the art without departing from the scope of the present application.

Claims

1. An industrial aquaculture cage annular circulating water treatment system, characterized in that: The system comprises: A plurality of cages for aquaculture, each cage is provided with an electric drain valve, and each cage is connected to a drain pipe via the electric drain valve; The drainage pipe is also connected to the water inlet of the physical filtration tank, and is used to discharge the sewage in the cage into the physical filtration tank; the physical filtration tank physically filters the large particles of solid matter in the sewage; The physical filtration chamber includes a slow flow area and a filtration area; The slow flow area is provided with a water inlet connected to the drain pipe; The filter area is provided with a water outlet connected to the outer ring inlet of the annular filter bin; The slow flow zone is used to slow down the water flow, and the filtration zone is used to filter large solid particles larger than 30 μm in the sewage through drum microfiltration. The water outlet of the physical filtration chamber is connected to the outer ring inlet of the annular filtration chamber. The outer ring of the annular filtration chamber is provided with multiple biochemical filtration modules, which perform biochemical filtration treatment on the sewage entering the chamber in turn; The inner ring of the annular filter chamber is provided with a clean water pool, which is connected to the outer ring outlet of the annular filter chamber and is used to store clean water filtered by multiple biochemical filter modules in the outer ring; The clean water tank is provided with a water inlet pipe, which is connected to the electric water inlet valve of each cage respectively, so as to discharge the clean water in the clean water tank into each cage; Each cage is equipped with a water quality detection sensor to detect the water quality in the cage; The water quality detection sensor is connected to a controller, and the controller is respectively connected to an electric drain valve and an electric water inlet valve. The controller is used to control the switching of the electric drain valve and the electric water inlet valve.

2. The system according to claim 1, wherein: The multiple biochemical filtration modules include: a primary disinfection chamber, a heat exchange chamber, a primary biochemical chamber, a secondary biochemical chamber, a tertiary biochemical chamber, a sedimentation chamber, and a secondary disinfection chamber; The outer ring inlet of the annular filtration warehouse is arranged on the first-level disinfection warehouse, the first-level disinfection warehouse is connected to the heat exchange warehouse, the heat exchange warehouse is connected to the first-level biochemical warehouse, the first-level biochemical warehouse is connected to the second-level biochemical warehouse, the second-level biochemical warehouse is connected to the third-level biochemical warehouse, the third-level biochemical warehouse is connected to the sedimentation warehouse, and the sedimentation warehouse is connected to the second-level disinfection warehouse; The outer ring outlet of the annular filter bin is arranged on the secondary disinfection bin.

3. The system according to claim 2, characterized in that The first-level disinfection chamber is used to sterilize the incoming sewage through ultraviolet rays; The heat exchange chamber is used to heat or cool the incoming sewage through an external heating device; The first-level biochemical tank is used to perform anaerobic treatment on the incoming sewage; The secondary biochemical tank is used to perform aerobic treatment on the incoming sewage; The three-stage biochemical warehouse is used to perform biochemical material adsorption and filtration treatment on the incoming sewage; The sedimentation tank is used to perform sedimentation treatment on the incoming sewage; The secondary disinfection chamber is used to perform ozone disinfection treatment on the incoming sewage.

4. The system according to claim 3, characterized in that The clean water pool is provided with a water pump for pumping clean water in the clean water pool into the water inlet pipe.

5. The system according to claim 4, characterized in that The secondary biochemical chamber is provided with a plurality of biochemical compartments, adjacent biochemical compartments are separated by partitions, and each biochemical compartment is filled with biochemical filter material; Each biochemical compartment has a top-in, bottom-out structure.

6. The system according to claim 5, characterized in that An aeration device is provided at the bottom of the secondary biochemical bin for aeration and oxygenation treatment of the secondary biochemical bin.

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