Water return system for recirculating aquaculture
By designing a circulating water farming return system including a breeding pool, central pipe, water separation tank, side return pipe and valve, the problems of dirt discharge, feed waste and live shrimp escape in the aquaculture pool are solved at a low water flow rate, and efficient water circulation and low-cost farming are achieved.
Patent Information
- Application Number
- CN202422188773.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-09-06
AI Technical Summary
In the case of low water flow rate, how to design a circulating water farming return system that can effectively discharge dirt at the bottom of the breeding pond, reduce feed discharge, reduce live shrimp escape, and reduce breeding costs.
A circulating water farming return water system is designed, including a breeding pool, central pipe, water separation tank, side return water pipe and valve. The liquid level height in the breeding pool is adjusted through the liquid level height adjustment device, and the central pipe and the side return water pipe are used to perform normal circulation, discharge and water flow management during feeding, and anti-escaping holes are set up to reduce the escape of fish and shrimps, and dirt is absorbed through the siphon device.
It realizes effective discharge of dirt at the bottom of the breeding pond under the water flow rate, reduces feed waste and escape of live shrimps, and reduces the pressure and breeding costs of the water treatment system.
Smart Images
Figure CN223008210U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of aquaculture, and particularly relates to a circulating water aquaculture return water system. Background Art
[0002] Industrialized circulating water aquaculture is a means of artificially controlling the water environment in aquaculture ponds to create better living, growing and living conditions for fish and shrimp. There are many difficulties in the process of industrialized fish and shrimp farming. First, fish and shrimp excrete a large amount every day during the farming process. If it is shrimp, there is also the problem of molting, which will cause blockage of the return water and sewage systems in the aquaculture pond. Second, the amount of feed input for fish and shrimp farming is large. When discharging sewage, if the water flow is large, it will carry away the feed, which not only increases the pressure on the water treatment system but also causes waste. Finally, some varieties of fish and shrimp are small in size, intolerant to water flow impact, and require a small water flow speed, which is not conducive to sewage discharge.
[0003] In view of this, how to design a circulating water aquaculture return water technology that can ensure the discharge of dirt at the bottom of the aquaculture pond, reduce feed discharge, and reduce the escape of live shrimp under the condition of small water flow speed is the technical problem to be solved by the utility model. Summary of the Utility Model
[0004] The utility model provides a circulating water aquaculture return water system, which realizes sewage discharge while reducing feed discharge and reducing the escape of live shrimp, and reduces the aquaculture cost.
[0005] To achieve the above technical purpose, the utility model is realized by adopting the following technical solutions:
[0006] The utility model provides a circulating water aquaculture return water system, comprising:
[0007] An aquaculture pond, the bottom of which is provided with a drain outlet;
[0008] A central pipe, which is arranged in the middle of the aquaculture pond, the bottom end of the central pipe is connected in the drain outlet, and a first anti-escape hole is arranged at a position near the bottom end of the central pipe;
[0009] A sub-water tank, which is arranged on the side of the aquaculture pond, and a liquid level height adjusting device is arranged inside the sub-water tank. The liquid level height adjusting device is used to adjust the liquid level height in the aquaculture pond. The sub-water tank is connected to the drain outlet through a first pipeline, and the sub-water tank is also connected to a return water pipeline;
[0010] A side return water pipe, which is arranged on one side of the central pipe. One end of the side return water pipe is located in the aquaculture pond. A plug is arranged at the port of the side return water pipe located in the aquaculture pond, and a second anti-escape hole is arranged on the side wall of the side return water pipe near the port. The end of the side return water pipe located in the aquaculture pond is arranged higher than the bottom of the aquaculture pond, and the other end of the side return water pipe is connected to the sub-water tank;
[0011] A valve is provided on the first pipeline, and the valve is used to control whether the central pipe drains water.
[0012] In some embodiments of the present application, the liquid level height control device includes a first insertion pipe and a second insertion pipe arranged on the bottom surface of the sub-water tank. The bottom end of the first insertion pipe is connected to the drain port through a first pipeline, the bottom end of the second insertion pipe is connected to the return water pipeline, and the height of the first insertion pipe is lower than that of the second insertion pipe.
[0013] In some embodiments of the present application, an anti-escape device is provided at the top end of the first insertion pipe, and the anti-escape device is used to prevent fish and shrimp from escaping.
[0014] In some embodiments of the present application, the anti-escape device includes a barrel body, the barrel body is connected to the outside of the first insertion pipe, and a third anti-escape hole is formed on the side wall of the barrel body.
[0015] In some embodiments of the present application, the first anti-escape hole, the second anti-escape hole, and the third anti-escape hole are all long strip holes.
[0016] In some embodiments of the present application, a sewage suction device is provided on the second insertion pipe, and the sewage suction device is used to absorb dirt into the second insertion pipe.
[0017] In some embodiments of the present application, the sewage suction device adopts a siphon device.
[0018] In some embodiments of the present application, the cross-section of the sub-water tank is circular or elliptical.
[0019] In some embodiments of the present application, the valve is an electric valve.
[0020] In some embodiments of the present application, the circulating water aquaculture return water system further includes a controller, and the controller is connected to the electric valve.
[0021] Compared with the prior art, the advantages and positive effects of the present utility model are as follows: during normal circulation and sewage discharge, the valve is opened, and water is discharged through the central pipe for circulation; a liquid level height adjustment device is arranged in the sub-water tank to adjust the liquid level height in the aquaculture pond; a side return water pipe is provided. When feeding, the valve is closed, and water does not drain through the central pipe for circulation but is discharged from the side return water pipe. Since there is a certain distance between the bottom end of the side return water pipe and the bottom of the aquaculture pond, it can prevent feed from being discharged from the side drain pipe, reduce feed waste, make it easier to control the amount of feed held by fish and shrimp, and facilitate the process of industrialized aquaculture of fish and shrimp; by setting a first anti-escape hole in the central pipe and a second anti-escape hole in the side return water pipe, the number of fish and shrimp escaping during sewage discharge or water circulation can be effectively reduced; the present utility model has a small pressure on the water treatment system and reduces the aquaculture cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0023] Figure 1 It is a schematic structural diagram of an embodiment of the circulating water aquaculture return water system of the present invention;
[0024] Figure 2 For Figure 1 the top view;
[0025] Figure 3 It is an enlarged schematic connection diagram of the aquaculture pond, the distribution water tank, and the side water pipe in an embodiment of the circulating water aquaculture return water system of the present invention;
[0026] Figure 4 It is a schematic structural diagram of the distribution water tank in an embodiment of the circulating water aquaculture return water system of the present invention;
[0027] Figure 5 It is a schematic structural diagram of the side return water pipe in an embodiment of the circulating water aquaculture return water system of the present invention;
[0028] Figure 6 It is a schematic structural diagram of the anti-escape device in an embodiment of the circulating water aquaculture return water system of the present invention.
[0029] Explanation of reference numerals:
[0030] 100, aquaculture pond;
[0031] 200, central pipe; 201, first anti-escape hole;
[0032] 300, distribution water tank; 301, first insertion pipe; 302, second insertion pipe; 303, anti-escape device; 3031, barrel body; 3032, third anti-escape hole; 304, sewage suction device;
[0033] 400, side return water pipe; 401, second anti-escape hole;
[0034] 500, valve;
[0035] 600, controller;
[0036] 700, first pipeline;
[0037] 800, return water pipeline. Detailed implementation manners
[0038] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0039] It should be noted that in the description of the present utility model, the terms indicating directions or positional relationships such as "upper", "lower", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0040] In the present utility model, unless otherwise clearly specified and defined, the terms such as "installation", "connection", "coupling", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0041] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.
[0042] The following disclosure provides many different embodiments or examples for implementing different structures of the present utility model. To simplify the disclosure of the present utility model, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present utility model. In addition, the present utility model may repeat reference numerals and / or reference letters in different examples. This 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 present utility model provides examples of various specific processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.
[0043] As Figures 1 to 6 shown, the present application provides a circulating water aquaculture return water system, including a culture pond 100, a central pipe 200, a distribution water tank 300, a side return water pipe 400, and a valve 500. The circulating water aquaculture return water system can reduce feed waste during feeding, save costs, and have a small pressure on the water treatment system, making the circulating aquaculture water quality better. Specifically:
[0044] A drain port (not shown in the figure) is provided at the bottom of the culture pond 100. The bottom surface of the culture pond 100 is an arc surface that is low in the middle and high around. The drain port is located at the lowest point of the bottom surface of the culture pond 100, facilitating the concentration of dirt on the bottom surface of the culture pond 100 under the action of gravity and discharging it from the drain. The water inlet direction of the culture pond 100 can be adjusted through the elbow direction of the water inlet pipe, enabling the water flow in the culture pond 100 to rotate. Figure 2 The arrow in
[0045] shows one direction of water flow rotation, and finally the dirt is collected at the drain port for discharge.
[0046] The water distribution tank 300 is installed on the side of the aquaculture pond 100. A liquid level height adjustment device is provided inside the water distribution tank 300. The liquid level height adjustment device is used to adjust the liquid level height in the aquaculture pond 100 so that the water level height in the aquaculture pond 100 can adapt to water circulation, sewage discharge or feed feeding. The bottom of the water distribution tank 300 is connected to the drain outlet through the first pipeline 700. The water distribution tank 300 is also connected to the return water pipeline 800. The water discharged from the aquaculture pond 100 through the drain outlet enters the water distribution tank 300 through the first pipeline 700, and then enters the water treatment system through the return water pipeline 800 to realize the recycling of water circulation. The first pipeline 700 is also connected to a drainage pipeline (not shown in the figure). The drainage pipeline is generally in a closed state and is only regularly opened when it is necessary to discharge the water in the aquaculture pond 100 and no longer recycle it.
[0047] The side return water pipe 400 is arranged on one side of the central pipe 200. One end of the side return water pipe 400 is located inside the aquaculture pond 100. A plug is provided at the port of the side return water pipe 400 located inside the aquaculture pond 100, and a second anti-escape hole 401 is provided on the side wall of the side return water pipe 400 near the port. The end of the side return water pipe 400 located inside the aquaculture pond 100 is arranged higher than the bottom of the aquaculture pond 100. The other end of the side return water pipe 400 is connected to the water distribution tank 300.
[0048] When returning water from the side return water pipe 400, the water flow does not enter from the port of the side return water pipe 400 but enters from the second anti-escape hole 401, which can prevent fish and shrimp from escaping from the side return water pipe 400 during side water return. The end of the side return water pipe 400 located inside the aquaculture pond 100 is arranged higher than the bottom of the aquaculture pond 100, so that when the water flows out through the side return water pipe 400, it can prevent the feed at the bottom of the pond from being carried away under the action of water pressure, thereby reducing feed waste.
[0049] The valve 500 is arranged on the first pipeline 700. The valve 500 is used to control whether the central pipe 200 discharges water. When the valve 500 is opened, the return water circulation is realized through the central pipe 200. When the valve 500 is closed, the return water circulation is realized through the side return water pipe 400.
[0050] The circulating water aquaculture return water system provided in this application includes three operation modes:
[0051] 1. Normal circulation and sewage discharge mode: Open the valve 500, and all the water flows out through the central pipe 200 and the drain outlet. And the dirt is rotated and gathered at the drain outlet by the water flow and is discharged by the water flow. In this mode, the side return water pipe 400 does not operate, the water flow does not flow through the side return water pipe 400, and the water flow and dirt enter the water distribution tank 300 through the drain outlet via the first pipeline 700, and then enter the water treatment system through the return water pipeline 800 below the water distribution tank 300 for treatment. After the water treatment reaches the standard, it enters the aquaculture pond 100 through the water inlet pipe to realize the circulating water aquaculture.
[0052] 2. Feeding mode: Before feeding, close valve 500. The liquid level height adjusting device adjusts the water level in the aquaculture pond 100 to rise, and the water flows into the water distribution tank 300 from the side return water pipe 400. After feeding, the feed sinks to the bottom of the aquaculture pond 100 under the action of gravity. Since there is a certain distance between the side return water pipe 400 and the bottom of the aquaculture pond 100, the feed will not be discharged from the side return water pipe 400, reducing feed waste. After the fish and shrimp have eaten the feed, open valve 500, restart the central pipe 200, the water level in the aquaculture pond 100 drops, the port of the side return water pipe 400 is exposed above the water surface, and all the water flows out from the central pipe 200 again, switching back to the normal circulation and sewage discharge mode.
[0053] 3. De-shelling mode for shrimp: This mode is specifically for shrimp farming. Since shrimp will molt during the growth process, it is necessary to regularly process the shed shrimp shells to prevent the shrimp shells from damaging the water quality in the water for a long time and affecting the normal growth of shrimp. When de-shelling shrimp, it is necessary to close valve 500 in advance to make the water flow out from the side return water pipe 400, the liquid level in the aquaculture pond 100 drops, and the shrimp are led away from the central pipe 200. Under the action of gravity and the arc surface of the aquaculture pond 100, the shrimp shells are concentrated at the bottom of the aquaculture pond 100 for salvage. After the de-shelling is completed, open valve 500 and switch back to the normal circulation and sewage discharge mode.
[0054] The liquid level height control device includes a first insertion tube 301 and a second insertion tube 302. There are insertion holes on the bottom surface of the water distribution tank 300. The first insertion tube 301 and the second insertion tube 302 are respectively inserted into different insertion holes. The bottom end of the first insertion tube 301 is connected to the drain port through a first pipeline 700, the bottom end of the second insertion tube 302 is connected to the return water pipeline 800, and the height of the first insertion tube 301 is lower than the height of the second insertion tube 302.
[0055] When valve 500 is opened, the water flows into the water distribution tank 300 through the drain port via the first pipeline 700. The water level in the water distribution tank 300 rises. When the water level reaches the height of the second insertion tube 302, the water flows into the water treatment system through the second insertion tube 302 via the return water pipeline 800 for treatment. The liquid level height in the aquaculture pond 100 is the same as the height of the top end of the second insertion tube 302. When different liquid level heights are required in the aquaculture pond 100, it can be achieved by setting the length of the second insertion tube 302.
[0056] When valve 500 is closed, the water flows into the water distribution tank 300 from the side return water pipe 400. The water level in the water distribution tank 300 rises. When the water level reaches the height of the second insertion tube 302, the water flows into the water treatment system through the second insertion tube 302 via the return water pipeline 800 for treatment.
[0057] The top end of the first insertion tube 301 is provided with an anti-escape device 303, and the anti-escape device 303 is used to prevent fish and shrimp from escaping. The anti-escape device 303 includes a barrel body 3031, the barrel body 3031 is connected to the outside of the first insertion tube 301, and a third anti-escape hole 3032 is formed in the barrel body 3031. The height of the barrel body 3031 is higher than that of the first insertion tube 301, and the aperture of the third anti-escape hole 3032 can be set to be smaller than that of the first anti-escape hole 201 and the second anti-escape hole 401. If fish and shrimp enter the water distribution tank 300 from the first anti-escape hole 201 and the second anti-escape hole 401, the third anti-escape hole 3032 can isolate them again to prevent fish and shrimp from entering the second insertion tube 302 and being discharged during regular drainage, which can not only reduce the workload of manually retrieving live fish and shrimp, but also reduce the number of dead live fish and shrimp.
[0058] The first anti-escape hole 201, the second anti-escape hole 401 and the third anti-escape hole 3032 are all strip-shaped. The strip-shaped anti-escape holes can not only ensure the flow rate of the passing water, but also prevent fish and shrimp from escaping.
[0059] The top end of the second insertion tube 302 is provided with a sewage suction device 304. The sewage suction device 304 is used to absorb sewage into the second insertion tube 302. The sewage suction device 304 adopts a siphon device. The siphon device is low in cost and simple to install, which is convenient for increasing the suction force on the sewage, so that all the sewage enters the water treatment system through the return water pipeline 800 for treatment, ensuring that the water quality in the aquaculture pond 100 meets the standards.
[0060] The cross-section of the water distribution tank 300 is circular or round, with few dead corners in the tank, which can effectively reduce the accumulation of sewage in the water distribution tank 300. As Figure 3 or Figure 4 shown, the cross-section of the water distribution tank 300 in this embodiment is circular.
[0061] The valve 500 adopts an electric valve. The circulating water aquaculture return water system further includes a controller 600. The controller 600 is signal-connected or electrically connected to the electric valve, and the switch of the valve 500 can be controlled through the controller 600, reducing labor costs and human errors.
[0062] In the description of this specification, the description of reference terms such as "some embodiments", "schematic embodiments", "examples", or "some examples" 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 invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.
[0063] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions required to be protected by the present invention.
Claims
1. A circulating water aquaculture return water system, characterized in that: include: A breeding pond having a drainage outlet at the bottom; A central pipe is arranged in the middle of the culture pond, the bottom end of the central pipe is connected to the drain port, and a first anti-escape hole is arranged near the bottom end of the central pipe; A water distribution tank is arranged at the side of the breeding pond, a liquid level height adjustment device is arranged inside the water distribution tank, and the liquid level adjustment device is used to adjust the liquid level in the breeding pond. The water distribution tank is connected to the drain port through a first pipe, and the water distribution tank is also connected to a return water pipe; A side water return pipe is arranged at one side of the central pipe, one end of the side water return pipe is located in the breeding pond, a plug is provided at the port of the side water return pipe located in the breeding pond, and a second anti-escape hole is provided on the side wall of the side water return pipe near the port, one end of the side water return pipe located in the breeding pond is arranged higher than the bottom of the breeding pond, and the other end of the side water return pipe is connected to the water distribution tank; A valve is arranged on the first pipeline, and the valve is used to control whether the central pipe is drained.
2. The circulating aquaculture return water system according to claim 1, characterized in that: The liquid level control device includes a first insert tube and a second insert tube arranged on the bottom surface of the water distribution tank, the bottom end of the first insert tube is connected to the drain outlet through a first pipe, the bottom end of the second insert tube is connected to the return pipe, and the height of the first insert tube is lower than the height of the second insert tube.
3. The circulating aquaculture return water system according to claim 2, characterized in that: An anti-escape device is provided at the top end of the first insertion tube, and the anti-escape device is used to prevent fish and shrimp from escaping.
4. The circulating aquaculture return water system according to claim 3, characterized in that: The anti-escape device comprises a barrel body, which is connected to the outer side of the first insertion tube, and a third anti-escape hole is opened on the side wall of the barrel body.
5. The circulating aquaculture return water system according to claim 4, characterized in that: The first anti-escape hole, the second anti-escape hole and the third anti-escape hole are all long strip holes.
6. The circulating aquaculture return water system according to claim 2, characterized in that: The second insert tube is provided with a dirt suction device, and the dirt suction device is used to absorb dirt into the second insert tube.
7. The circulating aquaculture return water system according to claim 6, characterized in that: The sewage suction device adopts a siphon device.
8. The circulating aquaculture return water system according to claim 1, characterized in that: The cross section of the water distribution tank is circular or elliptical.
9. The circulating aquaculture return water system according to claim 1, characterized in that: The valve is an electric valve.
10. The circulating aquaculture return water system according to claim 9, characterized in that: The circulating water aquaculture return water system also includes a controller, and the controller is connected to the electric valve.