Oxygen-increasing machine and aquatic product breeding system

Abstract

The utility model discloses an oxygen -increasing machine and aquaculture system, including casing, pump body, flow guide pipe and aeration coil, casing has water inlet, air inlet and output, and has mixing chamber between water inlet and output, and pump body is located in casing, and is located between water inlet and mixing chamber, and the input of pump body is connected with water inlet, and the output of flow guide pipe is connected with pump body, and is located in mixing chamber, and the peripheral wall of flow guide pipe is equipped with a plurality of output holes, and aeration coil is connected with air inlet, and aeration coil is arranged on the peripheral wall of flow guide pipe. Aeration coil can output dense bubbles on the pipe wall, and aeration coil is arranged on the peripheral wall of flow guide pipe, can cooperate with the output hole on the peripheral wall of flow guide pipe fully, and then can mix gas and water fully, and the water flow bubble that mixes chamber outputs from output is fine, is convenient for further dissolving with water body, can improve the oxygen -dissolving efficiency, and reduces bubble escape, and then can reduce equipment energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of aquaculture technology, and in particular to an aerator and aquaculture system. Background Technology

[0002] Maintaining sufficient dissolved oxygen in aquaculture is a crucial technical step in ensuring the healthy growth of farmed organisms and controlling water quality. Currently, aerators are the core equipment for aquaculture. Among them, Venturi aerators are widely used due to their simple structure and low cost. Their working principle is to use the high-speed water flow generated by a water pump to create negative pressure at the throat, drawing in air and mixing it with the liquid. However, the gas-liquid mixing efficiency of the Venturi effect is limited, and the generated bubbles are usually large, resulting in a small surface area for gas-liquid contact and low oxygen mass transfer efficiency. To achieve the desired aeration effect, it is often necessary to rely on high-power water pumps to increase water flow and pressure, supplemented by a high-flow-rate gas supply, which directly leads to high system energy consumption and increased aquaculture costs. Secondly, large bubbles have a short residence time in the water and escape into the atmosphere before dissolving, resulting in secondary energy waste. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an aerator that can improve dissolved oxygen efficiency and reduce energy consumption.

[0004] An aerator according to a first aspect of the present invention includes: a housing, a pump body, a guide pipe, and an aeration coil. The housing has a water inlet, an air inlet, and an outlet, and a mixing chamber is formed between the water inlet and the outlet. The pump body is disposed within the housing and located between the water inlet and the mixing chamber. The input port of the pump body is connected to the water inlet. The guide pipe is connected to the output port of the pump body and is located within the mixing chamber. The peripheral wall of the guide pipe is provided with a plurality of output holes. The aeration coil is connected to the air inlet and is coiled around the peripheral wall of the guide pipe.

[0005] The aerator according to the embodiments of this utility model has at least the following beneficial effects: when air or oxygen is introduced into the aeration coil, dense bubbles can be output from the tube wall. The aeration coil is coiled around the outer peripheral wall of the guide tube, which can fully cooperate with the output hole on the peripheral wall of the guide tube, thereby fully mixing the aeration gas with the water flow output from the output hole. After the water flow and the bubbles of the aeration coil are fully mixed in the mixing chamber, they are output from the output port. The output water flow has fine bubbles, which are easy to further dissolve in the water, thereby improving the dissolved oxygen efficiency and reducing bubble escape, thus reducing the energy consumption of the equipment.

[0006] According to some embodiments of this utility model, the guide tube is provided with a guide structure, which can guide the axially flowing fluid in the guide tube to be output toward the output hole.

[0007] According to some embodiments of the present invention, the flow guiding structure includes a connecting shaft and at least one spiral plate. The connecting shaft is connected to the flow guiding pipe and extends along the axial direction of the flow guiding pipe. The spiral plate is disposed on the peripheral wall of the connecting shaft and extends spirally along the axial direction of the connecting shaft.

[0008] According to some embodiments of the present invention, a water body regulating device is also included, which is disposed in the mixing chamber and arranged around the outer periphery of the aeration coil.

[0009] According to some embodiments of the present invention, the water body regulating control device includes an outer shell and a filler. The outer shell has a receiving cavity and is provided with a plurality of holes that communicate with the receiving cavity and the mixing cavity. The filler is disposed in the receiving cavity and is provided as minerals, microorganisms, or filters.

[0010] According to some embodiments of the present invention, the housing is provided with a maintenance interface connected to the water body control device, and the maintenance interface is able to communicate with the receiving cavity.

[0011] According to some embodiments of the present invention, a first cavity is further provided between the mixing cavity and the output port, and the cross-sectional area of ​​the first cavity is smaller than the cross-sectional area of ​​the mixing cavity.

[0012] According to some embodiments of the present invention, a second cavity is further provided between the first cavity and the output port, and the cross-sectional area of ​​the second cavity is smaller than that of the first cavity.

[0013] According to some embodiments of the present invention, the housing is configured as a cylindrical structure, and the housing includes a connecting seat, a first cylindrical body, a second cylindrical body and a third cylindrical body connected in sequence. The pump body is disposed in the connecting seat, the first cylindrical body is configured as the mixing chamber, a first diameter reduction portion is provided between the second cylindrical body and the first cylindrical body, and a second diameter reduction portion is provided between the third cylindrical body and the second cylindrical body.

[0014] According to a second aspect of the present invention, an aquaculture system includes a pond and a circulating filtration system, and further includes an aerator as described above, wherein the aerator is located at the bottom of the pond and arranged near the edge of the pond.

[0015] The aquaculture system according to the embodiments of this utility model has at least the following beneficial effects: the aerator works at the bottom of the pond, which can improve the dissolved oxygen efficiency under the action of water pressure, and the aerator works at the edge of the pond, so that the output water can flow in a spiral upward direction from the bottom of the pond to fully mix with the water in the pond, improve the dissolved oxygen efficiency, and reduce gas escape.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 These are cross-sectional views of some embodiments of the present invention; Figure 2 This is a schematic diagram of the flow guide tube. Figure 3 This is a schematic diagram showing the layout of the pool and aerator.

[0018] Figure label: 100 housing, 110 water inlet, 120 air inlet, 130 outlet, 140 mixing chamber, 150 maintenance interface, 160 first cavity, 170 second cavity, 181 connecting seat, 182 first cylinder, 183 second cylinder, 1831 first diameter reduction section, 184 third cylinder, 1841 second diameter reduction section; Pump body 200; Flow guide tube 300, output hole 310, flow guide structure 320, connecting shaft 321, spiral plate 322; Aeration coil 400; Water body control device 500, outer shell 510, receiving cavity 511, filling body 520, mineral ball 521; Pool body 600. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not 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. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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.

[0022] Reference Figures 1 to 2 According to a first aspect of the present invention, an aerator includes a housing 100, a pump body 200, a guide pipe 300, and an aeration coil 400. The housing 100 has a water inlet 110, an air inlet 120, and an outlet 130, and a mixing chamber 140 is provided between the water inlet 110 and the outlet 130. The pump body 200 is disposed inside the housing 100 and located between the water inlet 110 and the mixing chamber 140. The inlet of the pump body 200 is connected to the water inlet 110. The guide pipe 300 is connected to the outlet 130 of the pump body 200 and is located inside the mixing chamber 140. The peripheral wall of the guide pipe 300 is provided with a plurality of outlet holes 310. The aeration coil 400 is connected to the air inlet 120 and is coiled around the peripheral wall of the guide pipe 300. When air or oxygen is introduced into the aeration coil 400, dense bubbles can be output from the tube wall. The aeration coil 400 is coiled around the outer circumference of the guide tube 300, which can fully cooperate with the output hole 310 on the circumference of the guide tube 300. This allows the aeration gas to be fully mixed with the water flow output from the output hole 310. After the water flow and the bubbles from the aeration coil 400 are fully mixed in the mixing chamber 140, they are output from the output port 130. The output water flow has fine bubbles, which are easy to dissolve in the water, thus improving the dissolved oxygen efficiency and reducing bubble loss, thereby reducing equipment energy consumption.

[0023] Specifically, the pump body 200 can be a submersible pump, which is fixedly installed inside the housing 100. The housing 100 is provided with an inlet 110 for water to enter the pump body 200. The pump body 200 can drive water flow to the guide pipe 300. One end of the guide pipe 300 can be connected to the output port 130 of the pump body 200, and the other end can be sealed with a blind plate or have a flow-blocking structure. The water flow output by the pump body 200 can be output from the output hole 310 on the peripheral wall of the guide pipe 300. The radially output water flow can pass through the coiled aeration coil 400. The aeration coil 400 can be a nano aeration tube, which uses a special porous polymer material as the core functional layer, thereby forming ultrafine bubbles. The specific material and structure are conventional technical means and will not be described in detail here. The aeration coil 400 can be used to introduce gaseous media such as air and oxygen. The resulting fine bubbles can fully mix with the radially output water flow. The radially output water flow, upon contact with the inner wall of the mixing chamber 140, generates turbulence, further enhancing the gas dissolution efficiency. The mixed water in the mixing chamber 140 is output as a mist-like nano-water stream from the outlet 130, which can circulate in the water body and dissolve oxygen. The oxygen dissolution efficiency is high.

[0024] Reference Figures 1 to 2 In some embodiments of this utility model, a flow guiding structure 320 is provided inside the flow guiding pipe 300. The flow guiding structure 320 can guide the axially flowing fluid inside the flow guiding pipe 300 towards the output hole 310 for output. Specifically, a blind plate may not be provided at the end of the flow guiding pipe 300 away from the pump body 200. Instead, a flow guiding structure 320 can be provided inside the flow guiding pipe 300 to guide the water flowing axially along the flow guiding pipe 300 towards the output hole 310 for output. This can reduce water flow resistance, reduce the power required by the pump body 200, and save energy.

[0025] Reference Figures 1 to 2 In some embodiments of this utility model, the flow guiding structure 320 includes a connecting shaft 321 and at least one spiral plate 322. The connecting shaft 321 is connected to the flow guiding pipe 300 and extends along the axial direction of the flow guiding pipe 300. The spiral plate 322 is disposed on the circumferential wall of the connecting shaft 321 and extends spirally along the axial direction of the connecting shaft 321. Through the guidance of the spiral plate 322, the water flow can be guided towards the output hole 310. Specifically, four spiral plates 322 can be provided, arranged in a cross shape around the connecting shaft 321. Each spiral plate 322 is spirally arranged together along the axial direction of the connecting shaft 321. The spiral plates 322 and the connecting shaft 321 can be interference-fitted with the flow guiding pipe 300 or bonded to the inner wall of the flow guiding pipe 300. The four spiral plates 322 and the flow guiding pipe 300 form four spiral channels. The water flow can be output towards the output hole 310 in the spiral channels by centrifugal force, thereby increasing the output area of ​​the water flow and increasing the area for mixing with air bubbles.

[0026] Reference Figure 1In some embodiments of this utility model, a water body regulating control device 500 is also included. The water body regulating control device 500 is disposed in the mixing chamber 140 and arranged around the outer periphery of the aeration coil 400. Water can flow through the water body regulating control device 500, which can adjust the pH or trace element content of the water to meet the needs of aquaculture.

[0027] Reference Figure 1 In some embodiments of this utility model, the water regulation control unit 500 includes an outer shell 510 and a filler 520. The outer shell 510 has a receiving cavity 511 and a plurality of holes communicating the receiving cavity 511 with the mixing cavity 140. The filler 520 is disposed in the receiving cavity 511 and is composed of minerals, microorganisms, or filters. Specifically, the outer shell 510 may have a shell 100 structure, and the shell wall of the outer shell 510 may have dense pores. The filler 520 may be a mineral ball, a microbial ball, or a filter. The filler 520 can be replaced as needed to meet different water regulation requirements.

[0028] It is conceivable that beneficial bacteria such as nitrifying bacteria, denitrifying bacteria, and Bacillus in water require specific trace elements (such as iron, manganese, cobalt, copper, and zinc) as cofactors in their enzyme systems to function efficiently. The water conditioning control unit 500 can continuously provide these elements through mineral balls 52, effectively providing a sufficient supply to the beneficial bacteria, thereby accelerating the decomposition and transformation of organic matter such as uneaten feed and feces, as well as ammonia nitrogen and nitrite. Furthermore, the release of elements such as calcium, magnesium, and potassium helps stabilize the pH value of the water, enhances buffering capacity, and reduces the stress on aquaculture organisms caused by drastic fluctuations in water quality.

[0029] In some embodiments, the filler 520 may contain humic acid, humate, zeolite powder, etc., which can adsorb or complex toxic substances such as heavy metal ions and hydrogen sulfide in water, thereby reducing their toxicity.

[0030] Reference Figure 1 In some embodiments of this utility model, the housing 100 is provided with a maintenance interface 150 connected to the water control control 500, and the maintenance interface 150 can communicate with the receiving cavity 511. Specifically, the maintenance interface 150 is directly connected to the receiving cavity 511, and the maintenance interface 150 is provided with a cover to seal it. The filler 520 can be filled or removed from the maintenance interface 150 for easy replacement and replenishment.

[0031] Reference Figure 1In some embodiments of this invention, a first cavity 160 is provided between the mixing chamber 140 and the output port 130, and the cross-sectional area of ​​the first cavity 160 is smaller than that of the mixing chamber 140. Specifically, the fluid in the mixing chamber 140 is output from the output port 130 after passing through the first cavity 160. The cross-sectional area of ​​the first cavity 160 is smaller than that of the mixing chamber 140, thus narrowing the output channel. The specific structure of the housing 100 is not limited here, as long as it can achieve the narrowing structure. By reducing the cross-sectional area of ​​the flow channel, the flow velocity can be increased and turbulence can be formed, which can enhance gas dissolution.

[0032] Reference Figure 1 In some embodiments of this utility model, a second cavity 170 is further provided between the first cavity 160 and the output port 130, and the cross-sectional area of ​​the second cavity 170 is smaller than that of the first cavity 160. Specifically, a second cavity 170 for narrowing the channel can be further provided between the first cavity 160 and the output port 130. Similarly, the specific structure of the housing 100 is not limited here. When flowing into the second cavity 170, the flow velocity can be further increased, turbulence can be formed, and the gas dissolution efficiency can be improved.

[0033] It should be noted that, in actual use, tests showed that using a 130W pump (200mm) and an aeration coil (400mm) connected to air, the dissolved oxygen level was 8mg / L–11.1mg / L. This dissolved oxygen level is higher than that of conventional Venturi aerators, while requiring less power, consuming less energy, and resulting in lower costs. Furthermore, combined with a water level control (500mm), the pH level can be adjusted from 6.8 to a slightly alkaline level of 7.8–8, suitable for fish fry rearing.

[0034] Reference Figure 1In some embodiments of this utility model, the housing 100 is provided as a cylindrical structure, and the housing 100 includes a connecting seat 181, a first cylindrical body 182, a second cylindrical body 183 and a third cylindrical body 184 connected in sequence. The pump body 200 is provided in the connecting seat 181. The first cylindrical body 182 is provided with a mixing chamber 140. A first diameter reduction portion 1831 is provided between the second cylindrical body 183 and the first cylindrical body 182. A second diameter reduction portion 1841 is provided between the third cylindrical body 184 and the second cylindrical body 183. Specifically, the overall shell 100 can be roughly configured as a cylindrical structure, with a connecting seat 181 located at the bottom. The first cylinder 182, the second cylinder 183, and the third cylinder 184 are connected sequentially to form a narrowed fluid channel. The first cylinder 182 can house a guide pipe 300, an aeration coil 400, and a water control device 500. The second cylinder 183 can have a first narrowed section 1831, which connects to the first cylinder 182. Similarly, the third cylinder 184 can have a second narrowed section 1841, which connects to the second cylinder 183. This structure facilitates the assembly of various components and allows for the formation of a narrowed fluid channel.

[0035] Reference Figures 1 to 3 According to a second aspect of the present invention, an aquaculture system includes a pond and a circulating filtration system, and further includes the aforementioned aerator. The aerator is located at the bottom of the pond and arranged near the edge of the pond. The aerator operates at the bottom of the pond, where it can improve dissolved oxygen efficiency under water pressure. Furthermore, the aerator operates at the edge of the pond, allowing the output water to flow in a spiral upward direction from the bottom of the pond, thus fully mixing with the water in the pond, improving dissolved oxygen efficiency, and reducing gas escape.

[0036] It is conceivable that the pool body can be designed as a circular device, the aerator can output in the direction of the circular tangent, and a sewage outlet can be set in the middle of the bottom of the pool body. The mist-like nano water flow output by the aerator can also carry fish feces and uneaten food from the bottom of the pool to the middle of the pool body, making it convenient to discharge sewage from the sewage outlet in the middle of the pool body.

[0037] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0038] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An aerator, characterized in that, include: The housing (100) has a water inlet (110), an air inlet (120) and an outlet (130), and a mixing chamber (140) is provided between the water inlet (110) and the outlet (130). A pump body (200) is disposed inside the housing (100) and located between the water inlet (110) and the mixing chamber (140). The input port of the pump body (200) is connected to the water inlet (110). A guide pipe (300) is connected to the output port (130) of the pump body (200) and located in the mixing chamber (140). The guide pipe (300) has multiple output holes (310) on its peripheral wall. An aeration coil (400) is connected to the air inlet (120), and the aeration coil (400) is coiled around the periphery of the guide pipe (300).

2. The aerator according to claim 1, characterized in that, The guide pipe (300) is provided with a guide structure (320), which can guide the axially flowing fluid in the guide pipe (300) to be output towards the output hole (310).

3. The aerator according to claim 2, characterized in that, The flow guiding structure (320) includes a connecting shaft (321) and at least one spiral plate (322). The connecting shaft (321) is connected to the flow guiding pipe (300) and extends along the axial direction of the flow guiding pipe (300). The spiral plate (322) is disposed on the peripheral wall of the connecting shaft (321) and extends spirally along the axial direction of the connecting shaft (321).

4. The aerator according to claim 1, characterized in that, It also includes a water body control unit (500), which is located in the mixing chamber (140) and arranged around the outer periphery of the aeration coil (400).

5. The aerator according to claim 4, characterized in that, The water control unit (500) includes an outer shell (510) and a filler (520). The outer shell (510) has a receiving cavity (511) and the outer shell (510) has a plurality of holes that connect the receiving cavity (511) to the mixing cavity (140). The filler (520) is disposed in the receiving cavity (511) and is made of minerals, microorganisms or filters.

6. The aerator according to claim 5, characterized in that, The housing (100) is provided with a maintenance interface (150) connected to the water control unit (500), and the maintenance interface (150) can communicate with the receiving cavity (511).

7. The aerator according to claim 1, characterized in that, A first cavity (160) is provided between the mixing cavity (140) and the output port (130), and the cross-sectional area of ​​the first cavity (160) is smaller than that of the mixing cavity (140).

8. The aerator according to claim 7, characterized in that, A second cavity (170) is provided between the first cavity (160) and the output port (130), and the cross-sectional area of ​​the second cavity (170) is smaller than that of the first cavity (160).

9. The aerator according to claim 8, characterized in that, The housing (100) is configured as a cylindrical structure, and the housing (100) includes a connecting seat (181), a first cylindrical body (182), a second cylindrical body (183) and a third cylindrical body (184) connected in sequence. The pump body (200) is disposed in the connecting seat (181). The mixing chamber (140) is disposed in the first cylindrical body (182). A first diameter reduction section (1831) is provided between the second cylindrical body (183) and the first cylindrical body (182). A second diameter reduction section (1841) is provided between the third cylindrical body (184) and the second cylindrical body (183).

10. An aquaculture system, comprising a pond and a circulating water filtration system, characterized in that, The aerator included in any one of claims 1-9 is disposed at the bottom of the pool and arranged near the edge of the pool.

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