Rainbow trout circulating water culture pond

Abstract

The utility model provides a rainbow trout circulating water culture pond and aims to solve the technical problem that circulating treatment of culture wastewater has to be stopped due to the fact that a microstrainer is prone to being blocked in water treatment of an existing culture pond. A culture pond body of the rainbow trout circulating water culture pond is provided with a culture cavity, a separation cavity and a rough filtration assembly. And the separation cavity and the breeding cavity are separated by a separation pond wall. The partition pond wall is provided with a channel penetrating through the breeding cavity and the partition cavity. The breeding cavity is provided with a bottom plate assembly. The bottom plate assembly is provided with a bottom plate slidably connected to the inner wall of the breeding cavity. And the separation cavity is provided with a water outlet pipeline. The rough filtration assembly is matched with the channel and mounted on the partition tank wall and comprises an electric gate and a filter screen. The electric gate is used for blocking or communicating the breeding cavity and the separation cavity. And the fine filtration assembly comprises a microfilter. The microstrainer is connected to the water outlet pipeline through a water pump. According to the invention, the coarse filtration assembly is arranged on the partition tank wall, so that the mixed culture water is filtered by the fine filtration assembly after being subjected to primary coarse filtration, and the problem of blockage is solved.

Description

Technical Field

[0001] The present application relates to a circulating aquaculture pond, and in particular to a circulating water aquaculture pond for rainbow trout. Background Art

[0002] Rainbow trout is widely farmed because of its good taste and high economic value. Traditional farming methods face problems such as difficult water quality control, difficult disease control and slow growth. Triploid rainbow trout has greater growth potential than ordinary rainbow trout, which also means that the environmental conditions required for farming are more stringent. Therefore, it is particularly important to develop an efficient and sustainable farming system.

[0003] In recent years, recirculating aquaculture has become one of the key methods to improve the efficiency and sustainability of aquaculture. Especially for species such as rainbow trout that have high requirements for water quality, the use of advanced recirculating aquaculture technology can significantly improve productivity and survival rate. However, the existing aquaculture pond circulating water treatment usually first sends the aquaculture wastewater discharged from the aquaculture pond into the microfiltration machine through a pump to filter out other suspended solid particles in the water body, such as bait, rainbow trout excrement, etc. It is inevitable that the microfiltration machine will be blocked during long-term operation, which will stop the circulation treatment of aquaculture wastewater and affect the efficiency of water treatment. Utility Model Content

[0004] The purpose of the utility model is to provide a rainbow trout circulating water culture pond to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A rainbow trout circulating water culture pond, comprising:

[0007] The breeding pond body comprises a breeding cavity, a partition cavity and a coarse filter assembly; the partition cavity and the breeding cavity are separated by the partition pond wall; the partition pond wall is provided with a passage penetrating the breeding cavity and the partition cavity;

[0008] The breeding cavity is equipped with a bottom plate assembly; the bottom plate assembly has a bottom plate slidably connected to the inner wall of the breeding cavity;

[0009] The partition cavity is provided with a water outlet pipe;

[0010] The coarse filter assembly is matched with the channel and installed on the wall of the separation pool, and includes an electric gate and a filter; the electric gate is used for blocking or conducting between the breeding cavity and the separation cavity;

[0011] The fine filtration component comprises a microfilter; the microfilter is connected to the water outlet pipe through a water pump.

[0012] Furthermore, the base plate assembly also includes a pulley, a motor and a connecting rope;

[0013] There are multiple pulleys; the pulleys are installed on the top of the breeding cavity;

[0014] A motor, matched with the pulley and installed outside the culture cavity;

[0015] A connecting rope has one end mounted on the bottom plate, and the other end wound around the pulley and then mounted on the motor.

[0016] Furthermore, the partition pool wall is provided with an installation groove extending from the top to the bottom to the bottom of the channel; the width of the installation groove is larger than the width of the channel; the filter is installed in the channel to match the channel; and the electric gate is installed in the installation groove to match the channel.

[0017] Furthermore, the fine filtration component also includes a protein separator; the protein separator is connected to the microfiltration machine through a pipeline.

[0018] Furthermore, the rainbow trout circulating water culture pond also includes a biological filter; the bottom end of the biological filter is connected to the protein separator through a pipeline; the biological filter is composed of an anoxic zone and an aerobic zone from bottom to top; the anoxic zone is composed of a water distribution zone, a supporting layer and a filtration layer from bottom to top; the aerobic zone is connected to the top of the filtration layer.

[0019] Furthermore, the rainbow trout circulating water culture pond also includes a bubble generator, an ultraviolet disinfection tank and a water storage tank; the bubble generator is connected to the biological filter tank through a pipe; the ultraviolet disinfection tank is connected to the bubble generator through a pipe; the water storage tank is connected to the ultraviolet disinfection tank through a pipe near the top, and is connected to the water inlet through a pipe near the bottom.

[0020] Furthermore, a regulating valve and a working pump are connected between the water storage tank and the breeding cavity.

[0021] Furthermore, a water temperature controller is installed on the inner wall of the breeding cavity.

[0022] Furthermore, an automatic feeder and a monitor are installed on the top of the breeding cavity; the monitor is connected to a first control unit; the first control unit is respectively connected to the electric gate, the water pump, the fine filter assembly and the bubble generator.

[0023] Furthermore, the water tank is installed with a water level monitor; the water level monitor is connected to a second control unit; and the second control unit is connected to the electric gate.

[0024] Compared with the prior art, the beneficial effects of the utility model are:

[0025] (1) The above-mentioned rainbow trout breeding pond is provided with a coarse filter component at the dividing wall of the pond to perform primary coarse filtration on the breeding mixed water, and then filter it by the fine filter component, thereby avoiding the clogging of the fine filter component by the bait and rainbow trout excrement contained in the breeding mixed water flowing to the fine filter component, extending the service life of the equipment, maintaining the normal progress of the breeding mixed water replacement process, and improving the water treatment efficiency. The breeding mixed water treated by the fine filter component then flows to the biological filter tank, which comprehensively realizes the three-level filtration of the original breeding mixed water to ensure the water quality of the breeding water body.

[0026] (2) In this application, the mixed aquaculture water in the aquaculture cavity is processed by a series of treatments, namely, a coarse filter component, a fine filter component, a biological filter tank, a bubble generator and an ultraviolet disinfection tank, and then flows to a water storage tank for storage, which is mixed aquaculture water that meets the aquaculture requirements. When the bottom plate is cleaned and descends to the bottom of the aquaculture pond, rainbow trout is placed in the aquaculture cavity, and the treated mixed aquaculture water in the water storage tank can be injected back into the aquaculture cavity, thereby realizing the recycling of mixed aquaculture water and saving water. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0028] Figure 1 A schematic diagram of the structure of a breeding pond body of a rainbow trout circulating water breeding pond according to an embodiment of the present application;

[0029] Figure 2 A schematic diagram of the structure of a breeding pond body of a rainbow trout circulating water breeding pond according to an embodiment of the present application (excluding the bottom plate assembly);

[0030] Figure 3 A connection diagram of a rainbow trout circulating water aquaculture pond according to an embodiment of the present application;

[0031] Figure 4 This is a schematic side structural diagram of a partition wall of a rainbow trout circulating aquaculture pond according to an embodiment of the present application.

[0032] Reference numerals:

[0033] 1. Breeding pond body; 1A. Breeding cavity; 1B. Dividing cavity; 10. Dividing pond wall; 11. Mounting groove; 12. Water inlet; 13. Water outlet pipe; 140. Bottom plate; 141. Pulley; 142. Connecting rope; 143. Motor; 170. Electric gate; 171. Channel; 172. Filter;

[0034] 2. Microfiltration machine; 3. Protein skimmer;

[0035] 4a. Water distribution area; 4b. Support layer; 4c. Filtration layer; 4d. Clean water area;

[0036] 5. Bubble generator; 6. Ultraviolet disinfection tank; 7. Water storage tank; 80. Water pump; 81. Working pump; 90. Water stop valve; 91. Regulating valve. DETAILED DESCRIPTION

[0037] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0038] In the description of the present invention, it should be understood that the terms "width", "up", "down", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships conventionally placed when the product of the present invention is used, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0041] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings. Example

[0042] The utility model embodiment provides a rainbow trout circulating water culture pond, please refer to Figure 1-Figure 4 The rainbow trout circulating water aquaculture pond comprises a aquaculture pond body 1 and a fine filtration component, wherein:

[0043] The culture pond body 1 comprises a culture cavity 1A, a partition cavity 1B and a coarse filter assembly. The partition cavity 1B and the culture cavity 1A are separated by a partition wall 10. The partition wall 10 is provided with a passage 171 penetrating the culture cavity 1A and the partition cavity 1B.

[0044] The culture chamber 1A is equipped with a bottom plate assembly. The bottom plate assembly has a bottom plate 140 slidably connected to the inner wall of the culture chamber 1A. The partition chamber 1B is provided with a water outlet pipe 13. The coarse filter assembly matching channel 171 is installed on the partition pool wall 10. The coarse filter assembly includes an electric gate 170 and a filter screen 172. The electric gate 170 is used to block or conduct between the culture chamber 1A and the partition chamber 1B.

[0045] The fine filtration assembly includes a microfilter 2. The microfilter 2 is connected to the water outlet pipe 13 via a water pump 80.

[0046] When the mixed aquaculture water in the aquaculture cavity 1A needs to be replaced, the electric gate 170 rises and the water pump 80 is started. The mixed aquaculture water is filtered through the filter screen 172 in the aquaculture cavity 1A and then flows to the partition cavity 1B, so that the mixed aquaculture water flowing to the microfilter 2 no longer contains a large amount of bait and excrement, thereby avoiding the blockage of the microfilter 2 and the water pump 80, so as to maintain the normal process of the mixed aquaculture water replacement and improve the water treatment efficiency.

[0047] Specifically,

[0048] The breeding pond body 1 includes a breeding chamber 1A, a partition chamber 1B and a coarse filter assembly. The breeding chamber 1A is filled with breeding water for rainbow trout breeding. The coarse filter assembly is used for primary filtration of mixed breeding water.

[0049] The breeding chamber 1A is arranged on the left side of the breeding pond body 1. A water inlet 12 is arranged on the side wall near the top of the breeding chamber 1A for discharging breeding water. When rainbow trout are cultured in the breeding chamber 1A for a period of time, the breeding water often contains bait residues and rainbow trout excrement (hereinafter collectively referred to as "breeding mixed water"). The breeding chamber 1A is provided with a bottom plate assembly. The bottom plate assembly includes a bottom plate 140, a pulley 141, a motor 143 and a connecting rope 142.

[0050] The bottom plate 140 has an outer wall that is slidably connected to the inner wall of the culture cavity 1A. A plurality of pulleys 141 are provided. The pulley 141 is installed on the top of the culture cavity 1A. The motor 143 is matched with the pulley 141 and installed outside the culture cavity 1A. That is, the number of motors 143 is equal to the number of pulleys 141. The connecting rope 142 has one end installed on the bottom plate 140, and the other end is installed on the motor 143 after being wound around the pulley 141. The motor 143 drives the pulley 141 to rotate clockwise, thereby moving the bottom plate 140 upward; when the motor 143 drives the pulley 141 to rotate counterclockwise, the bottom plate 140 moves downward.

[0051] The partition cavity 1B is arranged on the right side of the breeding pond body 1. The partition cavity 1B and the breeding cavity 1A are separated by the partition wall 10. A channel 171 is provided near the bottom of the partition wall 10, which runs through the partition cavity 1B and the breeding cavity 1A. Then, the partition wall 10 is provided with an installation groove 11 from the top to the bottom to the bottom of the channel 171. At this time, the installation groove 11 is connected with the channel 171, and the width of the installation groove 11 is larger than the width of the channel 171. A water outlet pipe 13 is provided on the side wall near the bottom end of the partition cavity 1B. A water stop valve 90 is provided at the water outlet pipe 13. By opening the water stop valve 90, the breeding water in the breeding pond body 1 can be discharged.

[0052] The coarse filter assembly is installed on the partition pool wall 10. The coarse filter assembly includes a filter screen 172 and an electric gate 170. The filter screen 172 is installed in the channel 171 in a matching manner. That is, the shape and size of the filter screen 172 are the same as those of the channel 171. The electric gate 170 is slidably connected to the partition pool wall 10. The electric gate 170 is installed in the mounting groove 11 in a matching manner with the channel 171. That is, the width of the electric gate 170 is equal to the width of the mounting groove 11, and the height of the electric gate 170 is equal to the height of the channel 171, so that the electric gate 170 can block the channel 171 when it descends to the bottom of the mounting groove 11.

[0053] When the electric gate 170 moves upward, the mixed aquaculture water flows into the partition chamber 1B after passing through the filter screen 172, so as to perform primary coarse filtration on the mixed aquaculture water, so that the mixed aquaculture water in the partition chamber 1B no longer contains a large amount of bait and excrement.

[0054] The fine filter assembly is connected to the water outlet pipe 13 through a water pump 80. The fine filter assembly includes a microfilter 2 and a protein separator 3. The protein separator 3 is connected to the microfilter 2 through a pipeline.

[0055] The microfilter 2 is connected to the water pump 80. The water pump 80 is started, the water stop valve 90 is opened, and the aquaculture water in the aquaculture pond body 1 is pumped into the microfilter 2 by the water pump 80. The microfilter 2 performs secondary filtration on the residual bait residue and excrement in the partition cavity 1B.

[0056] The protein separator 3 is connected to the microfilter 2. The aquaculture water treated by the microfilter 2 flows into the protein separator 3. The protein separator 3 removes the hydrophobic tiny suspended matter in the water.

[0057] The mixed aquaculture water is firstly coarsely filtered by the filter screen 172, and then flows to the microfilter 2 for secondary filtration, which prolongs the working life of the water pump 80 and the microfilter 2 to maintain the normal operation of the mixed aquaculture water replacement process. The mixed aquaculture water filtered by the microfilter 2 is then processed by the protein separator 3, thereby removing a large amount of impurities contained in the mixed aquaculture water.

[0058] When the mixed water in the culture cavity 1A needs to be replaced, the electric gate 170 moves upward, opens the stop valve 90 and starts the water pump 80, so that the mixed water in the culture cavity 1A continuously flows through the partition cavity 1B and then is discharged to the fine filter assembly, until the water in the culture pond body 1 is drained, and then the stop valve 90, the water pump 80 and the electric gate 170 are closed. At this time, a large amount of bait and rainbow trout excrement are retained in the culture cavity 1A. In order to facilitate the cleaning of the bait and rainbow trout excrement on the bottom plate 140, the motor 143 is started to drive the pulley 141 to rotate clockwise, and the bottom plate 140 rises to the top of the culture pond body 1. First, the rainbow trout is scooped up, and then the bait and rainbow trout excrement on the bottom plate 140 are cleaned. After cleaning, the motor 143 is controlled to drive the pulley 141 to rotate counterclockwise, and the bottom plate 140 is lowered to the bottom of the culture pond body 1.

[0059] The bottom of the biofilter is connected to the protein separator 3 through a pipeline. The filter is divided into anoxic zone and aerobic zone from bottom to top.

[0060] The anoxic zone includes a water distribution zone 4a, a supporting layer 4b and a filter layer 4c from the bottom to the top. The supporting layer 4b is made of pebbles, and the filter layer 4c is made of a sand filter layer, so that the filter layer 4c can be supported by the supporting layer 4b. When the mixed aquaculture water treated by the protein separator 3 passes through the anoxic zone, denitrification and denitrification are carried out. That is, under anoxic conditions, the denitrifying bacteria in the anoxic zone reduce the nitrates and nitrites in the mixed aquaculture water to gaseous nitrogen compounds and nitrogen. In addition, the anoxic zone can also perform tertiary filtration on the mixed aquaculture water that has passed through the secondary filtration.

[0061] The aerobic zone is the clean water zone 4d. The clean water zone 4d is connected to the top of the filter layer 4c. An aeration pipe is installed on the side wall of the biological filter in the clean water zone 4d. The aeration pipe can supply oxygen to the clean water zone 4d. When the aquaculture mixed water in the anoxic zone flows upward to the clean water zone 4d, nitrification reaction is carried out. That is, under aerobic conditions, the ammonia nitrogen contained in the aquaculture mixed water is converted into nitric acid under the action of nitrifying bacteria in the clean water zone 4d. In summary, the aquaculture mixed water after passing through the biological filter can be nitrified and denitrified at the same time, thereby achieving biological denitrification.

[0062] The bubble generator 5 is connected to the biofilter through a pipeline. The aquaculture mixed water treated by the biofilter flows to the bubble generator 5 to oxidize the reducing harmful substances in the aquaculture mixed water and remove a large amount of organic matter. The bubble generator 5 can be an ultra-micro nano bubble machine.

[0063] The ultraviolet disinfection pool 6 is connected to the bubble generator 5 through a pipeline. The aquaculture mixed water treated by the bubble generator 5 flows to the ultraviolet disinfection pool 6 to further kill pathogenic bacteria and other microorganisms in the aquaculture mixed water, so that the effluent water quality meets the aquaculture requirements. The ultraviolet disinfection pool 6 is equipped with an ultraviolet disinfection lamp sterilization device. The aquaculture mixed water in the ultraviolet disinfection pool 6 is sterilized by ultraviolet lamp irradiation. The ultraviolet disinfection lamp sterilization device can adopt an immersion ultraviolet disinfection lamp with a specification of 254nm ultraviolet rays and a total power of 200W per unit.

[0064] The water storage tank 7 is connected to the ultraviolet disinfection tank 6 through a pipeline near the top end, and is connected to the water inlet 12 through a pipeline near the bottom end. A regulating valve 91 and a working pump 81 are connected between the water storage tank 7 and the pipeline of the breeding pond body 1.

[0065] After the mixed aquaculture water in the aquaculture cavity 1A is processed by the coarse filter component, the fine filter component, the biological filter tank, the bubble generator 5 and the ultraviolet disinfection tank 6 in sequence, the mixed aquaculture water that meets the aquaculture requirements flows to the water storage tank 7 for storage. When the bottom plate 140 is cleaned and lowered to the bottom of the aquaculture pond body 1, rainbow trout is placed in the aquaculture cavity 1A, the working pump 81 is started and the regulating valve 91 is opened. At this time, the treated mixed aquaculture water in the water storage tank 7 can be injected into the aquaculture cavity 1A again, realizing the recycling of the mixed aquaculture water and saving water. Example

[0066] Based on Example 1, in order to maintain suitable rainbow trout breeding conditions in the breeding chamber 1A, a water temperature controller is also installed on the inner wall of the breeding chamber 1A. Starting the water temperature controller can ensure that the breeding mixed water temperature in the breeding chamber is kept within the range most suitable for the growth of triploid rainbow trout. Example

[0067] Based on Example 1, in order to increase the convenience of online rainbow trout farming, an automatic feeder and a monitor are also installed on the top of the farming cavity 1A of the rainbow trout circulating water farming pond.

[0068] The automatic feeding machine can feed the rainbow trout in the breeding chamber 1A at a regular and quantitative time, eliminating the need for staff to run to the breeding pond several times a day to feed the rainbow trout.

[0069] The monitor monitors the changes of water quality indicators in real time. The monitor is connected to the first control unit. The first control unit includes a first data processor and a first control panel. The first data processor is connected to the first control panel. The first control panel is connected to the electric gate 170, the water pump 80, the water stop valve 90, the fine filter component and the bubble generator 5. When the monitor detects that the aquaculture mixed water in the aquaculture cavity 1A exceeds the water quality index, the signal is fed back to the first data processor for processing, and the electric gate 170 is controlled to move upward, the water pump 80 is started, the water stop valve 90 is opened, the fine filter component is started, and the bubble generator 5 is started through the first control panel. That is, when the aquaculture mixed water exceeds the standard, the water in the rainbow trout circulating water aquaculture pond can automatically perform the primary coarse filtration of the filter 172, the secondary filtration of the fine filter component, the tertiary filtration of the biological filter, the bubble generator 5 and the ultraviolet disinfection pool 6 to be stored in the water storage tank 7. At the same time, the water storage tank 7 is equipped with a water level monitor. The water level monitor is connected to the second control unit. The second control unit is connected to the electric gate 170. When the water level in the water storage tank 7 fluctuates greatly, the water level monitor transmits the signal to the second control unit to control the electric gate 170 to move downward, thereby realizing the intelligent breeding of rainbow trout breeding. At this time, the staff can clean the bottom plate.

Claims

1. A rainbow trout circulating water culture pond, characterized in that: The rainbow trout circulating water culture pond comprises: The breeding pond body comprises a breeding cavity, a partition cavity and a coarse filter assembly; the partition cavity and the breeding cavity are separated by a partition pond wall; the partition pond wall is provided with a passage penetrating the breeding cavity and the partition cavity; The breeding cavity is equipped with a bottom plate assembly; the bottom plate assembly has a bottom plate slidably connected to the inner wall of the breeding cavity; The partition cavity is provided with a water outlet pipe; The coarse filter assembly is matched with the channel and installed on the wall of the separation pool, and includes an electric gate and a filter; the electric gate is used for blocking or conducting between the breeding cavity and the separation cavity; The fine filtration component comprises a microfilter; the microfilter is connected to the water outlet pipe through a water pump.

2. A rainbow trout circulating water culture pond according to claim 1, characterized in that: The base plate assembly also includes a pulley, a motor and a connecting rope; There are multiple pulleys; the pulleys are installed on the top of the breeding cavity; A motor, matched with the pulley and installed outside the culture cavity; A connecting rope has one end mounted on the bottom plate, and the other end wound around the pulley and then mounted on the motor.

3. A rainbow trout circulating water culture pond according to claim 1, characterized in that: The partition pool wall is provided with an installation groove extending from the top to the bottom to the bottom of the channel; the width of the installation groove is larger than the width of the channel; the filter is installed in the channel to match the channel; and the electric gate is installed in the installation groove to match the channel.

4. The rainbow trout circulating water culture pond according to any one of claims 1 to 3, characterized in that: The fine filtration component also includes a protein separator; the protein separator is connected to the microfiltration machine through a pipeline.

5. A rainbow trout circulating water culture pond according to claim 4, characterized in that: The rainbow trout circulating water culture pond also includes a biological filter; the bottom end of the biological filter is connected to the protein separator through a pipeline; the biological filter is composed of an anoxic zone and an aerobic zone from bottom to top; the anoxic zone is composed of a water distribution zone, a supporting layer and a filtration layer from bottom to top; the aerobic zone is connected to the top of the filtration layer.

6. A rainbow trout circulating water culture pond according to claim 5, characterized in that: The rainbow trout circulating water culture pond also includes a bubble generator, an ultraviolet disinfection tank and a water storage tank; the bubble generator is connected to the biological filter tank through a pipeline; the ultraviolet disinfection tank is connected to the bubble generator through a pipeline; the water storage tank is connected to the ultraviolet disinfection tank through a pipeline near the top end, and is connected to the water inlet through a pipeline near the bottom end.

7. A rainbow trout circulating water culture pond according to claim 6, characterized in that: A regulating valve and a working pump are connected between the water storage tank and the breeding cavity.

8. The rainbow trout circulating water culture pond according to claim 1, characterized in that: A water temperature controller is also installed on the inner wall of the breeding cavity.

9. The rainbow trout circulating water culture pond according to any one of claims 6 or 7, characterized in that: An automatic feeder and a monitor are installed on the top of the breeding cavity; the monitor is connected to a first control unit; the first control unit is respectively connected to the electric gate, the water pump, the fine filter component and the bubble generator.

10. The rainbow trout circulating water culture pond according to claim 9, characterized in that: The water tank is equipped with a water level monitor; the water level monitor is connected to a second control unit; the second control unit is connected to the electric gate.

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