Biochemical device and fishery breeding system

Abstract

The utility model discloses a biochemical device and fishery breeding system relates to fishery breeding technical field, wherein the biochemical device includes biochemical tank, a plurality of attachment structure and oxygen supply subassembly, biochemical tank is equipped with water inlet pipe and water outlet pipe, a plurality of attachment structure is movably accommodated in biochemical tank, attachment structure is used for nitrobacteria attachment, oxygen supply subassembly is used for oxygen supply subassembly. The oxygen supply assembly is arranged in the biochemical tank body and used for aerating oxygen into the biochemical tank body, and water discharged by the water inlet pipe and / or oxygen discharged by the oxygen supply assembly can drive at least part of the attachment structure to move in the biochemical tank body. The biochemical device and the fishery breeding system disclosed by the utility model are beneficial to the growth of anaerobic and aerobic nitrifying bacteria, so that the effect of reducing the content of ammonia nitrogen in water is better.

Description

Technical Field

[0001] The utility model relates to the technical field of fishery breeding, in particular to a biochemical device and a fishery breeding system. Background Art

[0002] After the water in the aquaculture device is discharged, the ammonia nitrogen content is reduced by nitrifying bacteria in the biochemical device, and then it re-enters the aquaculture device, achieving water recycling. In the prior art, the biochemical device generally includes a biochemical tank, which is equipped with an inlet pipe, an outlet pipe, and an oxygen supply component. Nitrifying bacteria are placed in the biochemical tank. The nitrifying bacteria reduce the ammonia nitrogen ion content in the water through nitrification, preventing excessive ammonia nitrogen ion content in the water from affecting the growth of aquatic products such as fish. However, the top of the biochemical tank is open, which easily exposes the nitrifying bacteria to external light, which is not conducive to the growth of photophobic nitrifying bacteria. Moreover, after the oxygen supply component exposes oxygen to the biochemical tank, most of the oxygen is directly discharged from the top of the biochemical tank without being used by the nitrifying bacteria, which is not conducive to the growth of aerobic nitrifying bacteria. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a biochemical device that is conducive to the growth of photophobic aerobic nitrifying bacteria, thereby achieving a better effect in reducing the ammonia nitrogen content in water.

[0004] The utility model also provides a fishery breeding system with the above-mentioned biochemical device.

[0005] According to an embodiment of the first aspect of the present invention, a biochemical device includes a biochemical tank body, multiple attachment structures, and an oxygen supply component. The biochemical tank body is provided with a water inlet pipe and a water outlet pipe. The multiple attachment structures are movably accommodated in the biochemical tank body. The attachment structures are used for nitrifying bacteria to attach. The oxygen supply component is provided in the biochemical tank body for exposing the biochemical tank body to oxygen. The water discharged from the water inlet pipe and / or the oxygen discharged from the oxygen supply component can drive at least some of the attachment structures to move within the biochemical tank body.

[0006] The biochemical device according to the embodiment of the present invention has at least the following beneficial effects:

[0007] Since the biochemical tank body is a closed structure, external light is difficult to enter the biochemical tank body, which is just suitable for the photophobic habits of nitrifying bacteria. Moreover, the oxygen discharged by the oxygen supply component will remain in the biochemical tank body and cannot be discharged at will, thereby enabling aerobic nitrifying bacteria to be fully utilized. In addition, the water discharged by the water inlet pipe and / or the oxygen discharged by the oxygen supply component can drive at least part of the attachment structure to move and roll in the biochemical tank body, thereby making it more conducive for nitrifying bacteria to attach to each attachment structure conveniently and evenly, and making it more conducive for nitrifying bacteria to contact with oxygen more evenly and fully, thereby making it more conducive to the growth of nitrifying bacteria, thereby better reducing the ammonia nitrogen content in the water.

[0008] According to some embodiments of the present invention, the water inlet pipe is connected to the bottom end of the biochemical tank body, and the water outlet direction of the water inlet pipe is upward, so that the water discharged from the water inlet pipe can push at least part of the attachment structure to move upward.

[0009] According to some embodiments of the present invention, the water inlet pipe includes a water outlet section, the water outlet section is horizontally arranged at the bottom end of the biochemical tank body, and a plurality of water outlets are provided on the top of the water outlet section.

[0010] According to some embodiments of the present invention, two water inlet pipes are provided, and the two water inlet pipes are respectively connected to the two ends of the biochemical tank body in the length direction, and along the projection of the length direction of the biochemical tank body, the connection positions of the two water inlet pipes and the biochemical tank body are respectively located on opposite sides of the biochemical tank body. When the two water inlet pipes supply water at the same time, the water in the biochemical tank body forms a vortex under the impetus of the water discharged by the two water inlet pipes, thereby driving at least part of the attachment structure to move.

[0011] According to some embodiments of the present invention, both ends of the biochemical tank body in the length direction are connected to water supply pipes, and the water inlet pipe and the water supply pipe at the same end of the biochemical tank body are respectively located on opposite sides of the biochemical tank body. When the two water supply pipes supply water at the same time, the water in the biochemical tank body forms a vortex under the impetus of the water discharged from the two water supply pipes, thereby driving at least part of the attachment structure to move.

[0012] According to some embodiments of the present invention, the oxygen supply assembly includes an aeration pipe and an oxygen supply pipe. The aeration pipe is horizontally arranged at the bottom end of the biochemical tank body. A plurality of aeration holes are provided on the top of the aeration pipe. The oxygen supply pipe is connected to the aeration pipe for inputting oxygen into the aeration pipe, wherein the oxygen discharged from the aeration holes can push at least part of the attachment structure to move upward.

[0013] According to some embodiments of the present invention, the biochemical tank body is provided with a water collecting cylinder, the water outlet pipe is connected to the water collecting cylinder, the water collecting cylinder is provided with an opening communicating with the inner cavity of the biochemical tank body, the opening is provided with a filter screen, and the filter screen limits the passage of the attachment structure.

[0014] According to some embodiments of the present invention, the biochemical device also includes a liquid level gauge assembly, which includes a liquid level gauge body, a first connecting pipe, a second connecting pipe and a gas pipe, the first connecting pipe is connected to the top of the liquid level gauge body, one end of the first connecting pipe is connected to the inner cavity of the biochemical tank body, the second connecting pipe is connected to the bottom end of the liquid level gauge body, one end of the second connecting pipe is connected to the inner cavity of the biochemical tank body, and the gas pipe is connected to the first connecting pipe for inputting gas into the biochemical tank body to adjust the air pressure inside the biochemical tank body.

[0015] According to some embodiments of the present invention, the first connecting pipe is provided with a pressure sensor for detecting the air pressure inside the biochemical tank body, the gas supply pipe is provided with a first valve, and the top of the biochemical tank body is provided with a second valve connected to the inner cavity of the biochemical tank body, and the first valve and the second valve switch between an open state and a closed state according to the air pressure value detected by the pressure sensor.

[0016] According to some embodiments of the present invention, the liquid level meter assembly further includes a sampling tube, the sampling tube is connected to the second connecting tube, and the sampling tube is provided with a third valve.

[0017] The fishery farming system according to the second embodiment of the present invention includes the biochemical device described in the first embodiment.

[0018] The fishery farming system according to the embodiment of the present invention has at least the following beneficial effects:

[0019] The biochemical device of the first embodiment of the utility model has a closed biochemical tank body, so external light is difficult to enter the biochemical tank body, which is just suitable for the photophobic habits of nitrifying bacteria. Moreover, the oxygen discharged by the oxygen supply component will remain in the biochemical tank body and cannot be discharged at will, thereby enabling aerobic nitrifying bacteria to be fully utilized. In addition, the water discharged by the water inlet pipe and / or the oxygen discharged by the oxygen supply component can drive at least part of the attachment structure to move and roll in the biochemical tank body, thereby making it more conducive for nitrifying bacteria to attach to each attachment structure conveniently and evenly, and making it more conducive for nitrifying bacteria to contact with oxygen more evenly and fully, thereby making it more conducive to the growth of nitrifying bacteria, thereby better reducing the ammonia nitrogen content in the water.

[0020] Additional aspects and advantages of the present invention will be partially given in the following description, and some of the additional aspects and advantages will become apparent from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0022] Figure 1 This is a schematic structural diagram of a biochemical device according to one embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the water inlet pipe being connected to the bottom of the biochemical tank;

[0024] Figure 3 This is a schematic diagram of the water inlet pipe connected to both ends of the biochemical tank in the length direction;

[0025] Figure 4 This is a schematic diagram of the formation of vortex flow when draining water from the water inlet pipe;

[0026] Figure 5 for Figure 1 Enlarged view of point A in the middle;

[0027] Figure 6 for Figure 1 Enlarged view of point B in the middle;

[0028] Figure 7 This is a schematic diagram of the connection between the outlet pipe and the water collecting cylinder.

[0029] Figure Number:

[0030] Biochemical tank 100; water inlet pipe 101; water outlet pipe 102; water outlet 103; water outlet section 104; water supply pipe 105; water collection cylinder 106; filter 107; second valve 108; feeding port 109; observation window 110;

[0031] Attachment structure 200;

[0032] Oxygen supply assembly 300; aeration pipe 301; oxygen supply pipe 302;

[0033] Liquid level meter assembly 400; liquid level meter body 401; first connecting pipe 402; second connecting pipe 403; gas pipe 404; pressure sensor 405; first valve 406; sampling tube 407; pressure gauge 408. DETAILED DESCRIPTION

[0034] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0035] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientation or positional relationship indicated by up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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.

[0036] In the description of this utility model, "a plurality" refers to two or more. The use of "first" or "second" is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.

[0037] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0038] Reference below Figures 1 to 7 The biochemical device and the fishery farming system according to the embodiments of the present invention are described.

[0039] According to the biochemical device of the first embodiment of the present invention, Figures 1 to 4 As shown, it includes a biochemical tank 100, a plurality of attachment structures 200 and an oxygen supply component 300.

[0040] Among them, the biochemical tank body 100 is a closed structure, an inner cavity is formed in the biochemical tank body 100, and the biochemical tank body 100 is provided with a water inlet pipe 101 and a water outlet pipe 102. The water inlet pipe 101 can be one or more, and the water inlet pipe 101 is connected to the inner cavity of the biochemical tank body 100 for inputting water into the inner cavity of the biochemical tank body 100. The water outlet pipe 102 can be one or more, and the water outlet pipe 102 is connected to the inner cavity of the biochemical tank body 100 for discharging water in the biochemical tank body 100 that has been treated by nitrifying bacteria.

[0041] Multiple attachment structures 200 are accommodated in the biochemical tank body 100 and can roll and move freely in the biochemical tank body 100 when subjected to external force. The attachment structures 200 are for nitrifying bacteria to attach to. The attachment structures 200 can be porous bio balls, porous ceramsite or other suitable filter materials.

[0042] The oxygen supply assembly 300 is provided in the biochemical tank 100 and is connected to an oxygen concentrator for introducing oxygen into the biochemical tank 100. For example, the oxygen supply assembly 300 can be connected to the bottom end of the biochemical tank 100, and the oxygen supply assembly 300 introduces oxygen into the biochemical tank 100 from the bottom end of the biochemical tank 100.

[0043] The water discharged from the water inlet pipe 101 and / or the oxygen discharged from the oxygen supply assembly 300 can drive at least a portion of the attachment structure 200 to move within the biochemical tank 100 .

[0044] In the present invention, oxygen is regularly introduced into the biochemical tank body 100 through the oxygen supply component 300. After water enters the biochemical tank body 100 through the water inlet pipe 101, the nitrifying bacteria on the attachment structure 200 can reduce the ammonia nitrogen ion content in the water through nitrification reaction, and the treated water can be finally discharged from the water outlet pipe 102. According to the biochemical device of the embodiment of the present invention, since the biochemical tank body 100 is a closed structure, external light is difficult to enter the biochemical tank body 100, which is just suitable for the photophobic habits of nitrifying bacteria. In addition, the oxygen discharged by the oxygen supply component 300 will remain in the biochemical tank body 100 and cannot be discharged at will, thereby enabling aerobic nitrifying bacteria to be fully utilized. In addition, the water discharged by the water inlet pipe 101 and / or the oxygen discharged by the oxygen supply component 300 can drive at least part of the attachment structure 200 to move and roll in the biochemical tank body 100, thereby making it more conducive for nitrifying bacteria to attach to each attachment structure 200 conveniently and evenly, and making it more conducive for nitrifying bacteria to contact with oxygen more evenly and fully, thereby making it more conducive to the growth of nitrifying bacteria, thereby better reducing the ammonia nitrogen content in the water.

[0045] It should be noted that the top of the biochemical tank 100 may also be provided with a feeding port 109, which may be provided with an openable and closable cover. The feeding port 109 is used to feed the attachment structure 200 and nitrifying bacteria into the biochemical tank 100. The biochemical tank 100 may also be provided with an observation window 110. The observation window 110 may be one or more, for example, two, one on the side of the biochemical tank 100 and one on the top of the biochemical tank 100. The observation windows 110 are used to observe the conditions within the biochemical tank 100.

[0046] refer to Figure 2As shown, in some embodiments of the present invention, the water inlet pipe 101 is connected to the bottom of the biochemical tank body 100, and the water inlet pipe 101 is provided with a water outlet 103. The water outlet 103 is directed upward so that the water discharged from the water inlet pipe 101 can push at least a portion of the attachment structure 200 upward. After the water in the water inlet pipe 101 is discharged upward from the water outlet 103, it can push at least a portion of the attachment structure 200 upward. For example, it can push the attachment structure 200 above the water outlet 103 upward. After the attachment structure 200 moves upward for a certain distance, it moves downward under the action of its own gravity, thereby achieving a reciprocating tumbling motion, thereby more facilitating the convenient and uniform attachment of nitrifying bacteria to each attachment structure 200, and facilitating more uniform and sufficient contact between the nitrifying bacteria and oxygen, thereby more facilitating the growth of the nitrifying bacteria, thereby better reducing the ammonia nitrogen content in the water.

[0047] refer to Figure 2 As shown, in some embodiments of the present invention, the water inlet pipe 101 includes a water outlet section 104, which is horizontally arranged at the bottom end of the biochemical tank 100. The top of the water outlet section 104 is provided with multiple water outlets 103. For example, there can be one or more water outlet sections 104, and the top of each water outlet section 104 is provided with multiple water outlets 103 arranged along the length of the water outlet section 104.

[0048] In this way, the water in the water inlet pipe 101 can be discharged from multiple water outlets 103, so that more attachment structures 200 can move upward to achieve reciprocating tumbling motion, which is more conducive to nitrifying bacteria conveniently and evenly attaching to each attachment structure 200, and is conducive to nitrifying bacteria contacting oxygen more evenly and fully, which is more conducive to the growth of nitrifying bacteria, thereby better reducing the ammonia nitrogen content in the water.

[0049] refer to Figure 1 、 Figure 3 and Figure 4As shown, in some embodiments of the present invention, two water inlet pipes 101 are provided, and the two water inlet pipes 101 are respectively connected to the two ends of the biochemical tank body 100 in the length direction. In addition, along the projection of the length direction of the biochemical tank body 100, the connection positions of the two water inlet pipes 101 and the biochemical tank body 100 are respectively located on opposite sides of the biochemical tank body 100. When the two water inlet pipes 101 supply water at the same time, the water in the biochemical tank body 100 forms a vortex under the impetus of the water discharged from the two water inlet pipes 101, thereby driving at least part of the attachment structure 200 to move. For example, the two ends of the biochemical tank body 100 in the length direction may be a first end and a second end respectively, one water inlet pipe 101 is provided at the first end, and the other water inlet pipe 101 is provided at the second end, and along the projection in the length direction of the biochemical tank body 100, the water outlet positions of the two water inlet pipes 101 may be respectively located on both sides in the width direction of the biochemical tank body 100, and the water outlet direction of the water inlet pipe 101 may be the length direction of the biochemical tank body 100, that is, the water outlet direction of one water inlet pipe 101 is from the first end to the second end, and the water outlet direction of the other water inlet pipe 101 is from the second end to the first end.

[0050] In this way, when the two water inlet pipes 101 supply water at the same time, the water in the biochemical tank body 100 can form a vortex under the impetus of the water flowing out of the two water inlet pipes 101. The vortex water can drive at least part of the attachment structure 200 to move with it, which is more conducive to the nitrifying bacteria to attach to each attachment structure 200 conveniently and evenly, and is conducive to the nitrifying bacteria to contact with oxygen more evenly and fully, which is more conducive to the growth of nitrifying bacteria, thereby better reducing the ammonia nitrogen content in the water.

[0051] During the long-term breeding process, a certain amount of water will be absorbed by aquatic products. In addition, some water may be wasted in other ways. Figure 1 、 Figure 3 and Figure 4 As shown, in some embodiments of the present invention, water supply pipes 105 are connected to both ends of the biochemical tank body 100 along its length. These water supply pipes 105 can periodically replenish a certain amount of water. Furthermore, the water inlet pipe 101 and the water supply pipe 105 at the same end of the biochemical tank body 100 are located on opposite sides of the biochemical tank body 100. When both water supply pipes 105 supply water simultaneously, the water within the biochemical tank body 100, driven by the water discharged from the two water supply pipes 105, forms a swirling flow, thereby driving at least a portion of the attachment structure 200 to move. For example, one of the water supply pipes 105 is arranged at the first end, and the other water supply pipe 105 is arranged at the second end. Along the projection of the length direction of the biochemical tank body 100, the water outlet positions of the two water supply pipes 105 can be respectively located on both sides of the width direction of the biochemical tank body 100, and the water outlet direction of the water supply pipes 105 can be the length direction of the biochemical tank body 100, that is, the water outlet direction of one of the water supply pipes 105 points from the first end to the second end, and the water outlet direction of the other water supply pipe 105 points from the second end to the first end.

[0052] In this way, when the two water supply pipes 105 supply water at the same time, the water in the biochemical tank 100 forms a vortex under the impetus of the water flowing out of the two water supply pipes 105. The vortex water can drive at least part of the attachment structure 200 to move with it, which is more conducive to the nitrifying bacteria to attach to each attachment structure 200 conveniently and evenly, and is conducive to the nitrifying bacteria to contact with oxygen more evenly and fully, which is more conducive to the growth of nitrifying bacteria, thereby better reducing the ammonia nitrogen content in the water.

[0053] refer to Figure 2 and Figure 3 As shown, in some embodiments of the present invention, the oxygen supply assembly 300 includes an aeration pipe 301 and an oxygen supply pipe 302. The aeration pipe 301 is horizontally arranged at the bottom end of the biochemical tank body 100. There can be one or more aeration pipes 301. When there are multiple aeration pipes, they can be in a mesh structure. The top of the aeration pipe 301 is provided with multiple aeration holes. The oxygen supply pipe 302 is connected to the aeration pipe 301 for inputting oxygen into the aeration pipe 301. The oxygen discharged from the aeration holes can push at least part of the attachment structure 200 to move upward.

[0054] After the oxygen in the oxygen supply pipe 302 is discharged upward from the multiple aeration holes, it can push at least part of the attachment structure 200 to move upward. After the attachment structure 200 moves upward for a certain displacement, it moves downward again under the action of its own gravity, thereby realizing reciprocating tumbling motion, which is more conducive to nitrifying bacteria attaching to each attachment structure 200 conveniently and evenly, and is conducive to more uniform and sufficient contact between nitrifying bacteria and oxygen, which is more conducive to the growth of nitrifying bacteria, thereby better reducing the ammonia nitrogen content in the water.

[0055] It should be noted that the oxygen supply assembly 300 may also have other structures. For example, it may only be provided with the oxygen supply pipe 302 , and the oxygen supply pipe 302 directly inputs oxygen into the biochemical tank 100 .

[0056] refer to Figure 7 As shown, in some embodiments of the present invention, the biochemical tank 100 is provided with a water collection cylinder 106, to which the water outlet pipe 102 is connected. The water collection cylinder 106 has an opening communicating with the inner cavity of the biochemical tank 100, and a filter 107 is provided at the opening. The filter 107 restricts the passage of the attachment structure 200. The water collection cylinder 106 facilitates the rapid discharge of water treated by nitrifying bacteria within the biochemical tank 100, and the filter 107 prevents the attachment structure 200 from being discharged along with the water, thereby wasting the attachment structure 200.

[0057] refer to Figure 1 、 Figure 5 and Figure 6As shown, in some embodiments of the present invention, the biochemical device further includes a liquid level gauge assembly 400, which includes a liquid level gauge body 401, a first connecting tube 402, a second connecting tube 403 and a gas supply pipe 404. The first connecting tube 402 is connected to the top of the liquid level gauge body 401, one end of the first connecting tube 402 is connected to the inner cavity of the biochemical tank body 100, the second connecting tube 403 is connected to the bottom end of the liquid level gauge body 401, one end of the second connecting tube 403 is connected to the inner cavity of the biochemical tank body 100, and the gas supply pipe 404 is connected to the first connecting tube 402 for inputting gas into the biochemical tank body 100 to adjust the air pressure in the biochemical tank body 100.

[0058] For example, the liquid level gauge body 401 can be arranged vertically and made of a transparent material. The top end of the liquid level gauge body 401 can be connected to one end of a first connecting tube 402, the other end of which can be connected to the top of the biochemical tank body 100 and communicate with the inner cavity of the biochemical tank body 100. The bottom end of the liquid level gauge body 401 can be connected to one end of a second connecting tube 403, the other end of which can be connected to the bottom end of the biochemical tank body 100 and communicate with the inner cavity of the biochemical tank body 100. The bottom end of the liquid level gauge body 401 communicates with the liquid space at the bottom end of the biochemical tank body 100, and the top end of the liquid level gauge body 401 communicates with the gas space at the top end of the biochemical tank body 100, thereby making it convenient for staff to observe the liquid level within the biochemical tank body 100. The gas pipe 404 can be connected to a gas generator such as an air compressor. The gas generator transmits gas to the inner cavity of the biochemical tank body 100 through the gas pipe 404 to adjust the pressure within the biochemical tank body 100 so that the pressure within the biochemical tank body 100 is suitable for the growth of nitrifying bacteria, thereby improving the nitrifying bacteria's water treatment effect. In addition, the gas pipe 404 is connected to the first connecting pipe 402. When the liquid level gauge assembly 400 is installed, the gas pipe 404 is installed at the same time, and there is no need to connect the gas pipe 404 to the biochemical tank body 100, which makes assembly more convenient. Moreover, the biochemical tank body 100 does not need to be machined with a connection hole for connecting the gas pipe 404, making the biochemical tank body 100 more convenient to manufacture. In addition, the number of connection holes on the biochemical tank body 100 is reduced, making the biochemical tank body 100 more sealed.

[0059] refer to Figure 5As shown, in some embodiments of the present invention, the first connecting pipe 402 is provided with a pressure sensor 405 for detecting the air pressure in the biochemical tank 100, and the gas supply pipe 404 is provided with a first valve 406, which opens or closes the gas supply pipe 404 according to the air pressure value detected by the pressure sensor 405. For example, the first valve 406 can be a solenoid valve, and the pressure sensor 405 and the first valve 406 can both be connected to the control system of the fishery breeding system. When the pressure sensor 405 detects that the air pressure in the biochemical tank body 100 is less than a preset value, it sends a signal to the controller of the control system. The controller controls the first valve 406 to open the gas pipe 404, and the gas pipe 404 can replenish air into the biochemical tank body 100 in time, so that the air pressure in the biochemical tank body 100 rises to a pressure that meets the requirements of nitrifying bacteria. When the air pressure in the biochemical tank body 100 rises to the required pressure, the pressure sensor 405 senses and sends a signal to the controller, and the controller controls the first valve 406 to close the gas pipe 404 and stop the air intake. The system has a high degree of automation, is more convenient to use, and has more accurate air pressure regulation, which is more conducive to the growth of nitrifying bacteria.

[0060] refer to Figure 1 As shown, in some embodiments of the present invention, a second valve 108 communicating with the inner cavity of the biochemical tank 100 is provided at the top of the biochemical tank 100 , and the second valve 108 switches between an open state and a closed state according to the air pressure value detected by the pressure sensor 405 . For example, the second valve 108 can be a solenoid valve, and the second valve 108 can be connected to the control system of the fishery breeding system. When the pressure sensor 405 detects that the air pressure in the biochemical tank body 100 is greater than a preset value, it sends a signal to the controller of the control system. The controller controls the second valve 108 to open, and part of the gas in the biochemical tank body 100 can be discharged through the second valve 108, so that the air pressure in the biochemical tank body 100 drops to a pressure that meets the pressure required by nitrifying bacteria. When the air pressure in the biochemical tank body 100 drops to the required pressure, the pressure sensor 405 senses and sends a signal to the controller, and the controller controls the second valve 108 to close and stop exhausting. The system has a high degree of automation, is more convenient to use, and has more accurate air pressure regulation, which is more conducive to nitrifying bacteria treating water. In addition, it can avoid the air pressure in the biochemical tank body 100 being too high and causing explosion, and has better safety.

[0061] According to some embodiments of the present invention, the liquid level gauge assembly 400 further includes a sampling tube 407, which is connected to the second connecting tube 403 and is provided with a third valve. For example, the sampling tube 407 can be connected to the bottom of the second connecting tube 403 and extend downward, and the third valve can be a manual valve or an automatic valve.

[0062] In this embodiment, when the water in the biochemical tank body 100 needs to be tested, the third valve can be opened to remove a small amount of water from the sampling tube 407 for testing. This is a simple and convenient operation that saves time and effort. Furthermore, the sampling tube 407 is provided on the second connecting tube 403, allowing for simultaneous installation of the sampling tube 407 when the liquid level gauge assembly 400 is installed. This eliminates the need to connect the sampling tube 407 to the biochemical tank body 100, making assembly more convenient. Furthermore, the biochemical tank body 100 does not require a connection hole machined for connecting the sampling tube 407, making the biochemical tank body 100 more easily machined. Furthermore, the reduced number of connection holes on the biochemical tank body 100 improves the sealing performance of the biochemical tank body 100.

[0063] refer to Figure 6 As shown, in some embodiments of the present invention, the second connecting pipe 403 is provided with a pressure gauge 408 for detecting the water pressure in the biochemical tank 100. The provision of the pressure gauge 408 facilitates the staff to promptly and intuitively understand the water pressure in the biochemical tank 100, thereby enabling timely adjustment to the desired pressure, which is more conducive to the growth of nitrifying bacteria.

[0064] According to the second embodiment of the present invention, the fishery breeding system includes the biochemical device of the first embodiment.

[0065] According to the fishery breeding system of the embodiment of the present invention, by adopting the biochemical device of the embodiment of the first aspect of the present invention, since the biochemical tank body 100 is a closed structure, external light is difficult to enter the biochemical tank body 100, which is just suitable for the photophobic habits of nitrifying bacteria, and the oxygen discharged by the oxygen supply component 300 will remain in the biochemical tank body 100 and cannot be discharged at will, thereby enabling aerobic nitrifying bacteria to be fully utilized. In addition, the water discharged by the water inlet pipe 101 and / or the oxygen discharged by the oxygen supply component 300 can drive at least part of the attachment structure 200 to move and roll in the biochemical tank body 100, thereby making it more conducive to the convenient and uniform attachment of nitrifying bacteria to each attachment structure 200, and making it more conducive to the more uniform and sufficient contact between nitrifying bacteria and oxygen, thereby making it more conducive to the growth of nitrifying bacteria, thereby achieving a better effect in reducing the ammonia nitrogen content in the water.

[0066] It should be noted that, since the fishery farming system can adopt all the technical solutions of the biochemical device of the first embodiment, it at least has all the beneficial effects brought by the technical solutions of the first embodiment. These additional beneficial effects will not be repeated here.

[0067] It is understandable that the fishery farming system may also include farming devices, filtering devices, disinfection devices and various pipelines, etc. The other components and operations of the fishery farming system according to the embodiment of the utility model are known to ordinary technicians in this field and will not be described in detail here.

[0068] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A biochemical device, characterized in that: include: The biochemical tank body is provided with a water inlet pipe and a water outlet pipe; A plurality of attachment structures are movably accommodated in the biochemical tank body, and the attachment structures are used for nitrifying bacteria to attach; an oxygen supply component, provided in the biochemical tank body, for inputting oxygen into the biochemical tank body; The water discharged from the water inlet pipe and / or the oxygen discharged from the oxygen supply assembly can drive at least a portion of the attachment structure to move within the biochemical tank.

2. The biochemical device according to claim 1, characterized in that The water inlet pipe is connected to the bottom of the biochemical tank body, and the water outlet direction of the water inlet pipe is upward, so that the water discharged from the water inlet pipe can push at least part of the attachment structure to move upward.

3. The biochemical device according to claim 2, characterized in that The water inlet pipe comprises a water outlet section, which is horizontally arranged at the bottom end of the biochemical tank body, and a plurality of water outlets are arranged on the top of the water outlet section.

4. The biochemical device according to claim 1, characterized in that Two water inlet pipes are provided, and the two water inlet pipes are respectively connected to the two ends of the biochemical tank body in the length direction. In addition, along the projection of the length direction of the biochemical tank body, the connection positions of the two water inlet pipes and the biochemical tank body are respectively located on opposite sides of the biochemical tank body. When the two water inlet pipes supply water at the same time, the water in the biochemical tank body forms a vortex under the impetus of the water discharged by the two water inlet pipes, thereby driving at least part of the attachment structure to move.

5. The biochemical device according to claim 4, characterized in that: Both ends of the biochemical tank body in the length direction are connected to water supply pipes, and the water inlet pipe and the water supply pipe at the same end of the biochemical tank body are respectively located on opposite sides of the biochemical tank body. When the two water supply pipes supply water at the same time, the water in the biochemical tank body forms a vortex under the impetus of the water discharged from the two water supply pipes, thereby driving at least part of the attachment structure to move.

6. The biochemical device according to any one of claims 1 to 5, characterized in that: The oxygen supply assembly comprises: An aeration pipe is horizontally arranged at the bottom end of the biochemical tank body, and a plurality of aeration holes are provided on the top of the aeration pipe; an oxygen supply pipe, connected to the aeration pipe, for supplying oxygen into the aeration pipe; The oxygen discharged from the aeration holes can push at least a portion of the attachment structure to move upward.

7. The biochemical device according to any one of claims 1 to 5, characterized in that: The biochemical tank body is provided with a water collecting cylinder, the water outlet pipe is connected to the water collecting cylinder, the water collecting cylinder is provided with an opening communicating with the inner cavity of the biochemical tank body, the opening is provided with a filter screen, and the filter screen limits the attachment structure from passing through.

8. The biochemical device according to any one of claims 1 to 5, characterized in that: The biochemical device further includes a liquid level meter assembly, which includes: Liquid level gauge body; a first connecting tube connected to the top of the liquid level meter body, one end of which is connected to the inner cavity of the biochemical tank; a second connecting pipe connected to the bottom end of the liquid level meter body, one end of the second connecting pipe being connected to the inner cavity of the biochemical tank; The gas delivery pipe is connected to the first connecting pipe and is used to input gas into the biochemical tank to adjust the gas pressure inside the biochemical tank.

9. The biochemical device according to claim 8, characterized in that: The first connecting pipe is provided with a pressure sensor for detecting the air pressure inside the biochemical tank body, the gas supply pipe is provided with a first valve, and the top end of the biochemical tank body is provided with a second valve connected to the inner cavity of the biochemical tank body. The first valve and the second valve switch between an open state and a closed state according to the air pressure value detected by the pressure sensor.

10. A fish farming system, characterized in that: The biochemical device comprises the biochemical device according to any one of claims 1 to 9.

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