Automatic sewage sucking and discharging device for land-based round pool

By designing an automatic sewage suction and discharge device that uses an impeller to drive the suction pipe to rotate, the problem of low sewage discharge efficiency in land-based circular pond recirculating aquaculture is solved, achieving efficient sewage removal, ensuring stable water quality, and reducing aquaculture risks.

CN223886018UActive Publication Date: 2026-02-10广西壮族自治区水产技术推广站
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Patent Information

Application Number
CN202520304205.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-25
Publication Date
2026-02-10
Estimated Expiration
2035-02-25

AI Technical Summary

Technical Problem

In existing land-based circular recirculating aquaculture systems, the wastewater discharge efficiency is low, leading to excessive levels of ammonia nitrogen and nitrite in the water. This can easily cause diseases in farmed fish, increase the feed conversion ratio, and even lead to poisoning and death.

Method used

Design an automatic sewage suction and discharge device for a land-based circular pond, including a suction pipe, a suction nozzle, a gearbox, and an impeller. The impeller rotates to drive the suction pipe to rotate at the bottom of the pond, sucking away the deposited sewage and achieving automated and efficient sewage discharge.

Benefits of technology

It improves sewage discharge efficiency, avoids the problem of sewage in the water body being difficult to concentrate in the center of the circular pond, ensures water quality stability, and reduces aquaculture risks.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an automatic sewage sucking and discharging device for a land-based round pool, which comprises a sewage sucking pipe, a sewage sucking duckbill and a reduction gearbox, the sewage sucking duckbill is connected to the sewage sucking pipe, the sewage sucking pipe is connected to a first mounting base, the reduction gearbox is arranged in a second mounting base, an impeller is connected to a power input shaft of the reduction gearbox, and the impeller is connected to a power output shaft of the reduction gearbox. A power output shaft of the reduction gearbox is connected with the first mounting base, and the interior of the first mounting base and the interior of the second mounting base can communicate with each other; the second mounting base is arranged in the center of the bottom of the land-based round pool, a blow-off pipe is connected to the second mounting base, an automatic blow-off valve is arranged on the blow-off pipe, and the blow-off pipe is located outside the land-based round pool.
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Description

Technical Field

[0001] This utility model belongs to the technical field of facility aquaculture equipment, and specifically relates to an automatic sewage suction and discharge device for land-based circular ponds. Background Technology

[0002] Land-based circular recirculating aquaculture system (CRAS) is a modern aquaculture model that uses a series of devices to circulate the culture water within a circular pond. During the circulation process, the water first undergoes physical filtration to remove uneaten feed, feces, and other suspended solids. Then, it undergoes biological filtration, utilizing microorganisms to decompose harmful substances such as ammonia nitrogen and nitrite in the water. These microorganisms attach to the biological filter media, converting nitrogenous waste produced by farmed animals into relatively harmless substances, providing a favorable living environment for fish and other aquatic animals.

[0003] The round shape of the pool facilitates a more even distribution of water flow. The water circulation within the round pool helps to concentrate uneaten food and waste at the center of the bottom or near a specific drain, making collection and disposal easier.

[0004] However, in existing land-based circular recirculating aquaculture systems, waste collection in the circular pond relies on the rotation of the water flow to push it to the center of the pond bottom or near the drain outlet. But when the water rotation speed is insufficient, when nanotube aeration is used to create turbulent flow, or when the diameter of the circular pond is too large, waste in the water is difficult to concentrate with the water flow to the center of the pond, resulting in low waste discharge efficiency. This, in turn, easily leads to excessive levels of ammonia nitrogen and nitrite in the water, causing frequent diseases in farmed fish, increased feed conversion ratios, and even poisoning and death. Utility Model Content

[0005] In view of the shortcomings of existing technologies, the purpose of this utility model is to provide an automatic sludge suction and discharge device for land-based circular ponds, so as to solve the problem of low sludge discharge efficiency in existing land-based circular pond recirculating aquaculture processes. The specific technical solution is as follows:

[0006] An automatic sewage suction and discharge device for a land-based circular pond includes a suction pipe, a suction nozzle, and a gearbox. The suction nozzle is connected to the suction pipe, which is connected to a first mounting base. The gearbox is disposed inside a second mounting base. An impeller is connected to the power input shaft of the gearbox, and the power output shaft of the gearbox is connected to the first mounting base. The first mounting base and the second mounting base are internally interconnected.

[0007] The second mounting base is located at the center of the bottom of the land-based circular pool. A sewage pipe is connected to the second mounting base, and an automatic sewage valve is installed on the sewage pipe. The sewage pipe is located outside the land-based circular pool.

[0008] Preferably, the suction pipe is provided with a sewage inlet, and the suction nozzle is sleeved on the suction pipe, and the sewage inlet can communicate with the interior of the suction nozzle.

[0009] Preferably, the suction nozzle includes a circular connecting tube, a suction connecting tube, and a suction nozzle body. One end of the suction connecting tube is connected to the circular connecting tube, and the other end of the suction connecting tube is connected to the suction nozzle body. An opening is provided on the circular connecting tube.

[0010] The circular connecting tube is sleeved on the suction tube, and the opening corresponds to the inlet, so that the suction nozzle is in communication with the inside of the suction tube.

[0011] Preferably, the automatic sewage suction and discharge device for the land-based circular pool is provided with two suction pipes, each suction pipe is connected to multiple suction nozzles, and the radius of each suction nozzle from the center of the land-based circular pool is different.

[0012] Preferably, the second mounting base is provided with an assembly port, and the first mounting base is sleeved on the assembly port.

[0013] Preferably, the first mounting base is provided with a connection opening, and the suction pipe is connected to the connection opening.

[0014] Preferably, the second mounting base includes a circular base body and a mounting plate connected to the circular base body. The mounting plate is provided with a through hole. The gearbox is connected to the mounting plate. The impeller is located below the mounting plate, and the drain pipe is located below the impeller.

[0015] This utility model provides an automatic sewage suction and discharge device for a land-based circular pool. When the automatic sewage discharge valve is closed, the suction pipe, suction nozzle, first mounting base, second mounting base, and the section of the sewage discharge pipe between the second mounting base and the automatic sewage discharge valve are filled with water. When discharging sewage from the land-based circular pool, the automatic sewage discharge valve is opened, and the sewage in the second mounting base will then be discharged through the sewage discharge pipe. As the water flows down, the water in the land-based circular pool will continuously pass through the second mounting base. When the water flows through the impeller, it drives the impeller to rotate. After being reduced in speed by the reduction gearbox, a large torque is output, which drives the first mounting base and the suction pipe to rotate within the bottom of the land-based circular pool. Consequently, the sediment on the rotating surface can be sucked into the suction pipe through the suction nozzle. The suction nozzle is designed to always stay close to the bottom of the pool and rotate together with the suction pipe, thereby sucking away the sewage from the bottom layer of the pool and greatly improving the sewage discharge efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 This is a schematic diagram of the automatic sewage suction and discharge device provided by this utility model;

[0018] Figure 2 This is a schematic diagram of the connection structure between the suction pipe and the suction nozzle provided by this utility model;

[0019] Figure 3a This is a schematic diagram of the structure of the second mounting base provided by this utility model;

[0020] Figure 3b This is a schematic diagram of the structure of the second mounting base provided by this utility model;

[0021] Figure 4 This is a schematic diagram of the automatic suction and discharge device provided by this utility model. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "top surface", "bottom surface", "inner", "outer", "inner side", "outer side", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If the terms "first," "second," and "third" are used in the description, they are for descriptive purposes and to distinguish technical features, and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will now be described based on its overall structure.

[0026] Figure 1 This is a structural schematic diagram of the automatic sewage suction and discharge device provided by this utility model. Figure 4 This is a schematic diagram of the automatic suction and discharge device provided by this utility model. (See attached diagram) Figure 1 and Figure 4 An automatic sewage suction and discharge device for a land-based circular pond includes a suction pipe 1, a suction nozzle 2, and a reduction gearbox 3. The suction nozzle is connected to the suction pipe 1, and the suction pipe 1 is connected to a first mounting base 4. The reduction gearbox 3 is disposed inside a second mounting base 5. An impeller 6 is connected to the power input shaft of the reduction gearbox 3, and the power output shaft of the reduction gearbox 3 is connected to the first mounting base 4. The first mounting base 4 and the second mounting base 5 can communicate with each other.

[0027] The second mounting base 5 is located at the center of the bottom of the land-based circular pool 200. A sewage pipe 7 is connected to the second mounting base 5. An automatic sewage valve 8 is installed on the sewage pipe 7. The sewage pipe is located outside the land-based circular pool 200.

[0028] See Figure 1 and Figure 4In the aforementioned automatic sewage suction and discharge device, when the automatic sewage discharge valve 8 is closed, the sewage suction pipe 1, the sewage suction nozzle 2, the first mounting base 4, the second mounting base 5, and the sewage discharge pipe 7 section located between the second mounting base 5 and the automatic sewage discharge valve 8 are filled with water. When discharging sewage from the land-based circular pool, the automatic sewage discharge valve 8 is opened, and the sewage in the second mounting base 5 will then be discharged through the sewage discharge pipe 7. As the water flows down, the water in the land-based circular pool will continuously pass through the second mounting base 5. When the water flows through the impeller 6, it drives the impeller 6 to rotate. After being reduced in speed by the reduction gearbox 3, a large torque is output, which drives the first mounting base 4 and the sewage suction pipe 1 to rotate within the bottom of the land-based circular pool. Consequently, the sediment on the rotating surface can be sucked into the sewage suction pipe 1 through the sewage suction nozzle 2. The sewage suction nozzle 2 is designed to always stay close to the bottom of the pool and rotate together with the sewage suction pipe 1, thereby sucking away the sewage at the bottom of the pool and greatly improving the sewage discharge efficiency.

[0029] Figure 2 This is a schematic diagram of the connection structure between the suction pipe and the suction nozzle provided by this utility model. (See attached diagram.) Figure 1 As shown in the figure, in a preferred embodiment, the suction pipe 1 is provided with a sewage inlet 10, the sewage suction nozzle 2 is sleeved on the suction pipe 1, and the sewage inlet 10 can communicate with the interior of the sewage suction nozzle 2.

[0030] The suction nozzle 2 is configured to rotate on the suction pipe 1, which facilitates the installation of the suction nozzle 2 onto the suction pipe 1. After the suction nozzle 2 is connected to the suction pipe 1, it ensures that the inside of the suction nozzle 2 is interconnected with the inside of the suction pipe 1, so that the sewage in the land-based circular pool can flow into the suction pipe 1 through the suction nozzle 2.

[0031] See Figure 1 According to the figure, in a preferred embodiment, the suction nozzle includes a circular connecting pipe 21, a suction connecting pipe 22, and a suction nozzle body 23. One end of the suction connecting pipe 22 is connected to the circular connecting pipe 21, and the other end of the suction connecting pipe 22 is connected to the suction nozzle body 23. An opening 210 is provided on the circular connecting pipe 21.

[0032] The circular connecting tube 1 is sleeved on the suction tube 1, and the opening 210 corresponds to the sewage inlet 10, so that the suction nozzle 2 is in communication with the inside of the suction tube 1.

[0033] See Figure 1 and Figure 4 In a preferred embodiment, the automatic sewage suction and discharge device for the land-based circular pool is provided with two suction pipes 1, and each suction pipe 1 is connected to multiple suction nozzles 2, with each suction nozzle 2 having a different radius from the center of the land-based circular pool.

[0034] In the specific implementation plan, two symmetrical suction pipes 1 are set up, and the suction nozzles 2 are distributed on the suction pipes 1 in an asymmetrical manner. The radii of each nozzle to the center of the land-based circular pool are different, ensuring that each nozzle travels a different circular path. The left and right nozzles work together to achieve full coverage suction within the rotation radius.

[0035] Figure 3a and 3b This is a schematic diagram of the structure of the second mounting base provided by this utility model. (See attached diagram) Figure 3a and 3b In a preferred embodiment, the second mounting base 5 is provided with an assembly port 51, and the first mounting base 4 is sleeved on the assembly port 51. When the impeller 6 is driven by the water flow, the power input shaft of the reduction gearbox 3 can rotate, thereby causing the power output shaft of the reduction gearbox 3 to rotate. Under the action of the power output shaft of the reduction gearbox 3, the first mounting base 4 rotates at the bottom of the land-based circular pool, thereby causing the suction pipe 1 on the first mounting base 4 to rotate, thus agitating the lower layer of sewage at the bottom of the land-based circular pool, allowing residual feed and feces at the bottom of the pool to be discharged along with the sewage. This eliminates the need to rely on the water flow to form a circulation in the circular pool to discharge sewage to the center of the pool bottom, avoiding the problems of insufficient water rotation speed, turbulent water flow caused by nanotube aeration, or excessively large diameter of the aquaculture circular pool, where sewage in the water is difficult to concentrate at the center of the pool, resulting in low sewage discharge efficiency.

[0036] See Figure 4 In a preferred embodiment, the first mounting base 4 is provided with a connection opening 40, and the suction pipe 1 is connected to the connection opening 40.

[0037] See Figure 3a , 3b and Figure 4 In a preferred embodiment, the second mounting base 5 includes a circular base body 52 and a mounting plate 53 connected to the circular base body 52. ​​The mounting plate 53 is provided with a through hole 530. The gearbox 3 is connected to the mounting plate 53. The impeller 6 is located below the mounting plate 53, and the drain pipe is located below the impeller 6.

[0038] The through hole 530 allows sewage at the bottom of the land-based circular pool to drive the impeller 6 at the bottom of the mounting plate 53 to rotate through the mounting plate 53.

[0039] In summary, the automatic sewage suction and discharge device for a land-based circular pond provided by this utility model opens the automatic sewage discharge valve when the aquaculture water needs to be discharged. The water flows along the duckbill → suction pipe → first mounting base → second mounting base → impeller → discharge pipe → discharge valve. When the water flows through the impeller, it drives the impeller to rotate. After being reduced in speed by the reduction gearbox, it outputs a large torque, which drives the suction pipe and the suction duckbill to rotate horizontally at the bottom of the land-based circular pond. The sediment on the rotating surface is sucked into the discharge pipe and then discharged out of the pond. The suction duckbill can always move close to the bottom of the pond, so that only the sewage at the bottom of the pond is sucked away, which greatly improves the sewage discharge efficiency.

[0040] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art, after reading this specification, can make modifications, substitutions, variations, and various choices and changes to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, variations, and choices and changes are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. An automatic sewage suction and discharge device for a land-based circular pond, characterized in that, Includes a suction pipe (1), a suction nozzle (2), and a gearbox (3). The suction nozzle (2) is connected to the suction pipe (1), and the suction pipe (1) is connected to a first mounting base (4). The gearbox (3) is located inside a second mounting base (5). An impeller (6) is connected to the power input shaft of the gearbox (3), and the power output shaft of the gearbox (3) is connected to the first mounting base (4). The first mounting base (4) and the second mounting base (5) can communicate with each other. The second mounting base (5) is located at the center of the bottom of the land-based circular pool. A sewage pipe (7) is connected to the second mounting base (5). An automatic sewage valve (8) is installed on the sewage pipe (7). The sewage pipe (7) is located outside the land-based circular pool.

2. The automatic sewage suction and discharge device for a land-based circular pond according to claim 1, characterized in that, The suction pipe (1) is provided with a sewage inlet (10), and the sewage suction nozzle (2) is sleeved on the suction pipe (1). The sewage inlet (10) can communicate with the interior of the sewage suction nozzle (2).

3. The automatic sewage suction and discharge device for a land-based circular pool according to claim 2, characterized in that, The suction nozzle (2) includes a circular connecting pipe (21), a suction connecting pipe (22), and a suction nozzle body (23). One end of the suction connecting pipe (22) is connected to the circular connecting pipe (21), and the other end of the suction connecting pipe (22) is connected to the suction nozzle body (23). An opening (210) is provided on the circular connecting pipe (21). The circular connecting pipe (21) is sleeved on the suction pipe (1), and the opening (210) corresponds to the sewage inlet (10), so that the suction nozzle (2) and the inside of the suction pipe (1) are interconnected.

4. The automatic sewage suction and discharge device for a land-based circular pond according to claim 1, characterized in that, The automatic sewage suction and discharge device for the land-based circular pool is equipped with two suction pipes (1), and each suction pipe (1) is connected to multiple suction nozzles (2). The radius of each suction nozzle (2) from the center of the land-based circular pool is different.

5. The automatic sewage suction and discharge device for a land-based circular pond according to claim 1, characterized in that, The second mounting base (5) is provided with an assembly port (51), and the first mounting base (4) is sleeved on the assembly port (51).

6. The automatic sewage suction and discharge device for a land-based circular pool according to claim 1, characterized in that, The first mounting base (4) is provided with a connection opening (40), and the suction pipe (1) is connected to the connection opening (40).

7. The automatic sewage suction and discharge device for a land-based circular pond according to claim 1, characterized in that, The second mounting base (5) includes a circular base body (52) and a mounting plate (53) connected to the circular base body (52). The mounting plate (53) is provided with a through hole (530). The gearbox (3) is connected to the mounting plate (53). The impeller (6) is located below the mounting plate (53). The drain pipe is located below the impeller (6).