An internal circulation sewage collection device and an aquaculture farm

Abstract

This utility model discloses an internal circulation sewage collection device and an aquaculture farm. The internal circulation sewage collection device includes an aquaculture pond, an auxiliary flow propulsion mechanism, and a first connecting pipe and a second connecting pipe located between the aquaculture pond and the auxiliary flow propulsion mechanism. The first connecting pipe has a first inlet and a first outlet connected together, and the second connecting pipe has a second inlet and a second outlet connected together. The first outlet and the second inlet are located in the aquaculture pond, and the second outlet and the first inlet are located in the auxiliary flow propulsion mechanism. The auxiliary flow propulsion mechanism is also equipped with an aeration device and a sewage discharge pipe. The aeration device is located at the bottom of the auxiliary flow propulsion mechanism, and the sewage discharge pipe is located above the second connecting pipe. The internal circulation sewage collection device of this utility model has low energy consumption and also has the effects of sewage discharge and oxygenation.

Description

Technical Field

[0001] This utility model relates to the field of fish farming technology, specifically an internal circulation sewage collection device and an aquaculture farm. Background Technology

[0002] The "dirt" in aquaculture ponds mainly comes from fish metabolism, uneaten feed, environmental factors, and microbial activity. These substances affect water quality and harm fish health, making timely waste removal crucial. Currently, waste removal primarily involves using external water pumps or creating swirling currents in elevated ponds to concentrate waste at the bottom drain. This method of water-push-water collection and discharge has drawbacks such as high energy consumption and cost. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides an internal circulation sewage collection device and an aquaculture farm, which has low energy consumption and cost, and also has the effects of sewage discharge and oxygenation.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An internal circulation sewage collection device includes an aquaculture pond, an auxiliary flow propulsion mechanism, and a first connecting pipe and a second connecting pipe located between the aquaculture pond and the auxiliary flow propulsion mechanism. The first connecting pipe has a first inlet and a first outlet communicating with each other, and the second connecting pipe has a second inlet and a second outlet communicating with each other. The first outlet and the second inlet are located in the aquaculture pond, and the second outlet and the first inlet are located in the auxiliary flow propulsion mechanism. The auxiliary flow propulsion mechanism is further provided with an aeration device and a sewage discharge pipe. The aeration device is located at the bottom of the auxiliary flow propulsion mechanism, and the sewage discharge pipe is located above the second connecting pipe.

[0006] In a preferred embodiment, the drain pipe is 8-15 cm higher than the second connecting pipe in the height direction.

[0007] In a more preferred embodiment, the drain pipe is 10 cm higher than the second connecting pipe in the height direction.

[0008] In a preferred embodiment, the first connecting pipe is located at the lower end of the aquaculture tank and the auxiliary propulsion mechanism, and the second connecting pipe is located at the upper end of the aquaculture tank and the auxiliary propulsion mechanism.

[0009] In a preferred embodiment, the height of the second connecting pipe is the same as the height of the water level in the aquaculture pond.

[0010] In a preferred embodiment, the first outlet has a first chamfer, the second inlet has a second chamfer, and the first and second chamfers are inserted into the aquaculture pond.

[0011] In a preferred embodiment, the internal circulation sludge collection device has a sludge collection port located at the bottom center of the aquaculture pond.

[0012] In a preferred embodiment, the first connecting pipe and the second connecting pipe have detachable pipe fittings.

[0013] In a preferred embodiment, the aeration device includes an aeration inlet pipe and a microporous aeration disc, wherein the microporous aeration disc and the aeration inlet pipe are connected.

[0014] This utility model also adopts the following technical solution:

[0015] An aquaculture farm includes the aforementioned internal circulation sewage collection equipment.

[0016] The present invention adopts the above solution and has the following advantages compared with the prior art:

[0017] This utility model's internal circulation sludge collection device involves water from the aquaculture pond entering the auxiliary propulsion mechanism through the first outlet and first inlet at the bottom. An aeration device then pushes the water upwards within the auxiliary propulsion mechanism. Sludge within the auxiliary propulsion mechanism is discharged as "oil sludge" through a drain pipe. Water from the auxiliary propulsion mechanism then enters the aquaculture pond through a second connecting pipe, thus forming an internal circulation: aquaculture pond → auxiliary propulsion mechanism → aquaculture pond. The liquid flows out from the bottom of the aquaculture pond and flows in from the top, creating an internal vortex within the pond to settle fish feces and other impurities at the bottom. This internal circulation sludge collection device has low energy consumption and cost, and also provides both sludge discharge and oxygenation. Attached Figure Description

[0018] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a top view of the internal circulation sludge collection device according to an embodiment of the present utility model;

[0020] Figure 2 This is a front view of the internal circulation sewage collection device according to an embodiment of the present utility model.

[0021] in,

[0022] 100. Internal circulation sewage collection equipment;

[0023] 1. Aquaculture pond; 2. Auxiliary flow propulsion mechanism; 21. Aeration device; 211. Aeration inlet pipe; 212. Microporous aeration disc; 22. Sewage discharge pipe; 3. First connecting pipe; 31. First water inlet; 32. First water outlet; 33. First chamfer; 4. Second connecting pipe; 41. Second water inlet; 42. Second water outlet; 43. Second chamfer; 5. Sewage collection port; 6. Pipe connector. Detailed Implementation

[0024] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art. It should be noted that the description of these embodiments is for the purpose of aiding understanding the present invention, but does not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0025] This embodiment provides an aquaculture farm. Pollution from aquaculture mainly includes chemical pollution, biological pollution, and physical pollution. Chemical pollution mainly refers to the excessive addition of chemical substances such as feed, medicines, and disinfectants to the water body. These substances remain in the water, poisoning aquatic organisms and disrupting the aquatic ecological balance. Biological pollution mainly refers to the large amounts of uneaten feed, feces, and dead organisms generated during the aquaculture process. These organic substances consume oxygen during decomposition, producing harmful substances such as ammonia nitrogen, leading to water quality deterioration and affecting the survival of aquatic organisms. Physical pollution mainly refers to the impact of aquaculture facilities and equipment on the water body, such as suspended solids and silt. Specifically, in this embodiment, the aquaculture object is fish, and this embodiment mainly focuses on treating the waste generated by fish.

[0026] Reference Figure 1 and Figure 2 As shown, the aquaculture farm includes an internal circulation sewage collection device 100. In this embodiment, the internal circulation sewage collection device 100 settles large particulate impurities such as fish feces, uneaten fish food, and leaves, and discharges some pollutants that cannot be removed by physical filtration, such as undigested feed oil and algal secretions.

[0027] Furthermore, the internal circulation sludge collection device 100 includes an aquaculture tank 1, an auxiliary propulsion mechanism 2, and a first connecting pipe 3 and a second connecting pipe 4 located between the aquaculture tank 1 and the auxiliary propulsion mechanism 2. The first connecting pipe 3 and the second connecting pipe 4 are hollow connecting pipes that allow liquid or air to circulate. The aquaculture tank 1 and the auxiliary propulsion mechanism 2 are cylindrical in shape and are both in a sealed state during operation. In other embodiments, the aquaculture tank 1 and the auxiliary propulsion mechanism 2 may have other shapes; this embodiment does not limit the shapes of the aquaculture tank 1 and the auxiliary propulsion mechanism 2.

[0028] The first connecting pipe 3 and the second connecting pipe 4 have detachable pipe fittings 6 for easy disassembly and maintenance. Furthermore, referring to... Figure 2 As shown, the first connecting pipe 3 has a first inlet 31 and a first outlet 32, and the second connecting pipe 4 has a second inlet 41 and a second outlet 42. The first inlet 31 and the first outlet 32 ​​are located on the same horizontal line, and the second inlet 41 and the second outlet 42 are also located on the same horizontal line. The first outlet 32 ​​and the second inlet 41 are located in the aquaculture tank 1, and the second outlet 42 and the first inlet 31 are located in the auxiliary propulsion mechanism 2. The first connecting pipe 3 is located at the lower end of the aquaculture tank 1 and the auxiliary propulsion mechanism 2, and the second connecting pipe 4 is located at the upper end of the aquaculture tank 1 and the auxiliary propulsion mechanism 2. The terms "upper end" and "lower end" can be used as a reference. Figure 2 The vertical direction shown refers to the bottom of the aquaculture tank 1 and the water level line of the aquaculture tank 1. In application, water from the aquaculture tank 1 enters the first inlet 31 of the auxiliary propulsion mechanism 2 from the first outlet 32, and then enters the second inlet 41 of the aquaculture tank 1 from the second outlet 42 of the auxiliary propulsion mechanism 2. This means the liquid flows out from the bottom of the aquaculture tank 1 and flows in from the top, circulating repeatedly to form a vertical vortex inside the tank. The entire device has a simple structure, reducing production costs.

[0029] The auxiliary flow propulsion mechanism 2 is also equipped with an aeration device 21 and a drain pipe 22. The aeration device 21 is located at the bottom of the auxiliary flow propulsion mechanism 2, and the drain pipe 22 is located above the second connecting pipe 4. The aeration device 21 mainly forces oxygen into the liquid in the auxiliary flow propulsion mechanism 2 to increase the dissolved oxygen concentration and improve water quality. The aeration device includes a blower, an aeration inlet pipe 211, and a microporous aeration disc 212. The blower provides compressed air and delivers compressed air from the air source to the microporous aeration disc 212. The aeration disc 212 is in direct contact with the water and is responsible for releasing the compressed air into the liquid in the auxiliary flow propulsion mechanism 2 in the form of bubbles to carry out gas-liquid exchange. As the core diffusion component, the microporous aeration disc is disc-shaped and has extremely small pores on its surface or inside. When compressed air is delivered to the microporous aeration disc 212 through the aeration inlet pipe 211, the air is forced to pass through these tiny pores (the pore size is usually tens to hundreds of micrometers). Due to the small pore size, the released air will form a large number of fine and uniform microbubbles, and these microbubbles greatly increase the oxygen dissolution interface.

[0030] The aeration device serves to increase oxygen levels and generate numerous bubbles that drive the liquid in the auxiliary propulsion mechanism 2 upwards. The waste within the auxiliary propulsion mechanism is primarily in the form of oil sludge and is discharged through the drain pipe 22. This waste can originate from feed residue and decomposition products of excrement, such as undigested feed oil and anaerobic decomposition products of organic matter. Undigested feed oil refers to excess fat in the feed (especially low-quality feed or overfeeding) that is not digested by the fish and forms an oil film on the water surface after being excreted with feces. Anaerobic decomposition products of organic matter refer to the long-chain fatty acids, lipids, and thiols produced during the anaerobic decomposition of uneaten feed, feces, dead algae, etc., at the bottom of the pond, which float to the surface and form an oil film; and / or, algal and planktonic metabolites, such as algal secretions and planktonic remains. Algal secretions refer to the release of intracellular lipids and hydrocarbons by certain algae (such as diatoms and cyanobacteria) during growth or death and rupture, forming a colored oil film. Planktonic remains refer to the oil droplets formed by the seepage of oil from the bodies of zooplankton such as rotifers and cladocerans after death. And / or, products of microbial activity, such as sulfur bacteria metabolites and methanogenic bacteria secretions. Sulfur bacteria metabolites refer to hydrogen sulfide (H2S) produced by sulfate-reducing bacteria in the anaerobic environment at the bottom of the pond when they decompose organic matter. After oxidation, it may generate colloidal sulfur or elemental sulfur, which combines with surface active substances to form a colorful oil film. Methanogenic bacteria secretions refer to the rise of methane gas produced by anaerobic fermentation, which carries trace amounts of lipid compounds to the water surface.

[0031] Reference Figure 2As shown, in the vertical direction, the height of the second connecting pipe 4 is the same as the height of the water level line of the aquaculture pond 1. The sewage pipe 22 is 8-15cm higher than the second connecting pipe 4. Specifically, in this embodiment, the sewage pipe 22 is 10cm higher than the second connecting pipe 4 to ensure that the "oil sludge" in the auxiliary propulsion mechanism 2 can be discharged smoothly, while the treated and relatively clean liquid (water) can enter the aquaculture pond 1 normally.

[0032] The first outlet 32 ​​has a first chamfer 33, and the second inlet 41 has a second chamfer 43. The first chamfer 33 and the second chamfer 43 are inserted into the aquaculture tank 1. The purpose of designing the first chamfer 33 and the second chamfer 43 is to make the first outlet 32 ​​and the second inlet 41 close to the tank wall of the aquaculture tank 1, so as to better form an internal vortex in the aquaculture tank to settle the impurities in the aquaculture tank 1.

[0033] The internal circulation sewage collection device 100 has a sewage collection port 5, which is located in the middle of the bottom of the aquaculture pond 1. The sewage collection port 5 can centrally remove solid waste such as uneaten feed, fish feces, dead algae, and organic debris accumulated at the bottom of the pond, and prevent the sediment from anaerobic decomposition at the bottom of the pond to produce toxic substances such as ammonia nitrogen and hydrogen sulfide.

[0034] This embodiment primarily uses the aquaculture pond 1 to allow large particles such as fish feces, uneaten fish food, and leaves to settle. The auxiliary propulsion mechanism 2 removes some pollutants that physical filtration cannot remove, such as undigested feed oil and algal secretions. Specifically, the liquid in the aquaculture pond 1 flows into the bottom of the auxiliary propulsion mechanism 2 through the first connecting pipe 3. The bubbles generated by the microporous aeration disc 212 within the auxiliary propulsion mechanism 2 cause the liquid to rise and be pushed back into the aquaculture pond 1 through the second connecting pipe 4, thus forming an internal circulation that generates a continuous flow. Furthermore, the waste within the auxiliary propulsion mechanism 2 floats to the surface as oil through the aeration device and flows out to the collection device through the drain pipe 22.

[0035] The internal circulation sludge collection device of this embodiment has at least the following advantages:

[0036] (1) The liquid in the aquaculture pond 1 and the auxiliary propulsion mechanism 2 forms an internal circulation in the pond. The aeration device 21 in the auxiliary propulsion mechanism 2 not only plays the role of propulsion but also plays the role of oxygenation.

[0037] (2) The height of the sewage pipe 22 of the auxiliary propulsion mechanism 2 is higher than the height of the second outlet 42, which can effectively discharge "oil pollution" and ensure that relatively clean water flows into the breeding pond 1;

[0038] (3) The internal circulation sewage collection equipment 100 has a relatively simple overall structure, which reduces the cost of use and has low energy consumption.

[0039] As indicated in this specification and claims, the terms "comprising" and "including" only indicate the inclusion of expressly identified steps and elements, and these steps and elements do not constitute an exclusive list; the method or apparatus may also include other steps or elements. The term "and / or" as used herein includes any combination of one or more of the associated listed items.

[0040] It should be noted that, unless otherwise specified, when a feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or it can be indirectly fixed or connected to the other feature. Furthermore, the descriptions of "upper," "lower," "left," and "right" used in this utility model are only relative to the relative positional relationships of the various components of this utility model in the accompanying drawings.

[0041] The above embodiments are only for illustrating the technical concept and features of this utility model, and are preferred embodiments. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly, and should not be construed as limiting the protection scope of this utility model. All equivalent transformations or modifications made based on the principles of this utility model should be covered within the protection scope of this utility model.

Claims

1. An in-line sewage collecting device, characterized in that, The system includes a breeding pond, an auxiliary flow propulsion mechanism, and a first connecting pipe and a second connecting pipe located between the breeding pond and the auxiliary flow propulsion mechanism. The first connecting pipe has a first inlet and a first outlet connected together, and the second connecting pipe has a second inlet and a second outlet connected together. The first outlet and the second inlet are located in the breeding pond, and the second outlet and the first inlet are located in the auxiliary flow propulsion mechanism. The auxiliary flow propulsion mechanism also includes an aeration device and a sewage discharge pipe. The aeration device is located at the bottom of the auxiliary flow propulsion mechanism, and the sewage discharge pipe is located above the second connecting pipe. The aeration device includes an aeration inlet pipe and a microporous aeration disc, and the microporous aeration disc and the aeration inlet pipe are connected together. The first connecting pipe is located at the lower end of the breeding pond and the auxiliary flow propulsion mechanism, and the second connecting pipe is located at the upper end of the breeding pond and the auxiliary flow propulsion mechanism.

2. The in-line straining device of claim 1, wherein: In terms of height, the drain pipe is 8-15cm higher than the second connecting pipe.

3. The in-cycle trap according to claim 2, wherein, In terms of height, the drain pipe is 10cm higher than the second connecting pipe.

4. The in-line straining device of claim 1 wherein, The height of the second connecting pipe is the same as the height of the water level in the aquaculture pond.

5. The in-line straining device of claim 1 wherein, The first outlet has a first chamfer, and the second inlet has a second chamfer. The first chamfer and the second chamfer are inserted into the aquaculture pond.

6. The internal circulation sewage collection device according to claim 1, characterized in that, The internal circulation sewage collection device has a sewage collection port, which is located in the middle of the bottom of the aquaculture pond.

7. The in-line straining device of claim 1 wherein, The first and second connecting pipes have detachable pipe fittings.

8. An aquaculture farm, characterized in that Includes the internal circulation sewage collection device as described in any one of claims 1-7.

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