Water treatment device for fishery breeding
By designing a longitudinally stacked arrangement of the degassing tower and gas chamber and a rotating water spray pipe in the water treatment device, the problems of large footprint and poor dissolved oxygen effect of the oxygenation equipment were solved, achieving efficient degassing and oxygenation treatment and improving oxygen utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 清远金沣生物药品有限公司
- Filing Date
- 2025-04-27
- Publication Date
- 2026-05-08
AI Technical Summary
Existing oxygenation equipment occupies a large area, has poor dissolved oxygen effect, and low oxygen utilization rate, failing to effectively solve the problem of carbon dioxide accumulation in high-density aquaculture water bodies.
Design a water treatment device including a degassing tower, a gas chamber, an oxygen pipe, an oxygen supply device, a water spray pipe, and a receiving tank. By longitudinally stacking the degassing tower and the gas chamber, gravity drives the water flow for degassing and oxygenation. Combined with the design of the rotating water spray pipe and the oxygen outlet pipe, the full diffusion and utilization of oxygen can be achieved.
It improves water treatment efficiency, reduces equipment footprint, enhances dissolved oxygen effect, and increases oxygen utilization, achieving efficient degassing and oxygenation treatment.
Smart Images
Figure CN224205975U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aquaculture technology, and in particular to a water treatment device for aquaculture. Background Technology
[0002] To achieve precise control over the quality of farmed animals and reduce the impact of seasons and climate on them, factory farming often uses indoor pool systems instead of open-air ponds. For the sake of water conservation and centralized pollutant treatment, factory farming commonly uses recirculating aquaculture systems. These systems dynamically maintain a stable living environment for the farmed animals by circulating wastewater from the pools and replenishing the pools with treated water whose parameters have been restored to normal.
[0003] With the continuous increase in breeding density, traditional open aeration facilities that use air as the main oxygen source cannot provide enough dissolved oxygen for farmed animals. Therefore, aeration equipment such as oxygen cones and low-head oxygenators generally use pure oxygen instead of air as the oxygen source and limit the full contact between oxygen and water in a closed environment to improve the utilization rate of oxygen.
[0004] The closed structure of pure oxygen aeration equipment cannot remove the carbon dioxide accumulated in high-density aquaculture water. High concentrations of carbon dioxide not only affect the pH value of the water but also have high toxicity to aquatic organisms, especially farmed animals. Therefore, these pure oxygen aeration devices must be used in conjunction with deaeration equipment, resulting in a large footprint. In addition, existing aeration equipment often has an excessively large aeration section, leading to insufficient oxygen to fill the internal space during oxygen supply, resulting in poor dissolved oxygen effects or requiring increased oxygen supply pressure to maintain oxygen content throughout the space, resulting in low oxygen utilization.
[0005] Therefore, existing technologies need to be improved. Utility Model Content
[0006] In view of this, the present invention provides a water treatment device for aquaculture, which solves the problems of large footprint and poor dissolved oxygen effect of existing deaeration and oxygenation equipment used together in the prior art.
[0007] To achieve one, some, or all of the above objectives, or other objectives, this utility model proposes a water treatment device for aquaculture, comprising a degassing tower, several gas chambers, several oxygen pipes, an oxygen supply device, a water spraying pipe, and one or more receiving pools. The degassing tower has an opening at its upper end and an air inlet on its side wall. Several gas chambers are located below the degassing tower and are connected to it. Each gas chamber has an oxygen inlet and an oxygen outlet on its side wall. One end of each oxygen pipe is connected to the oxygen outlet of one gas chamber, and the other end is connected to the oxygen inlet of another gas chamber. All gas chambers are connected sequentially through several oxygen pipes. The oxygen supply device is connected to the oxygen inlet of the first gas chamber in the sequentially connected gas chambers through an oxygen inlet pipe for supplying oxygen to the gas chamber. The water spraying pipe is located at the top of the degassing tower for spraying water downwards. The receiving pool is located at the lower end of each gas chamber for receiving water flowing down from the gas chamber. The bottom of the receiving pool has a water outlet for draining water.
[0008] Preferably, the oxygen outlet and the oxygen inlet on the same gas chamber are staggered vertically.
[0009] Preferably, the aquaculture water treatment device further includes an oxygen outlet pipe, one end of which is connected to the oxygen outlet of the last of the several air chambers connected in sequence, and the other end is connected to the oxygen inlet pipe. The oxygen outlet pipe is equipped with a one-way valve.
[0010] Preferably, a fan is provided at the air inlet.
[0011] Preferably, the number of receiving pools is the same as the number of air chambers; the receiving pools are arranged one-to-one below each air chamber.
[0012] Preferably, the number of air chambers is 5-10.
[0013] Preferably, the height of the air chamber is 40-60cm.
[0014] Preferably, the depth of the receiving pool is 40-90cm.
[0015] Preferably, a sieve plate is provided between each gas chamber and the degassing tower, and the sieve plate array has multiple dry water passage holes with a diameter of 4-8 mm.
[0016] Preferably, the height of the degassing tower is 1.5-2.5m.
[0017] Preferably, the water spray pipe is installed in a way that allows it to rotate around a vertical axis, and the side wall of the water spray pipe has several small water outlet holes.
[0018] Implementing the embodiments of this utility model will have the following beneficial effects:
[0019] 1. Used for deaeration and oxygenation of recirculating aquaculture systems, it can simultaneously treat the recirculating water for both deaeration and oxygenation, improving treatment efficiency. At the same time, the deaeration and oxygenation equipment is placed vertically, which saves the overall floor space of the water treatment equipment. The water flow relies on gravity to continuously carry out the two steps of deaeration and oxygenation, without the need for additional water pumps to lift water in between.
[0020] 2. The setup of multiple air chambers with oxygen supply pipes ensures sufficient oxygen diffusion within the air chambers, thereby guaranteeing the dissolved oxygen effect;
[0021] 3. In a preferred embodiment, an oxygen outlet pipe is also connected back to the oxygen inlet pipe to recover oxygen, thereby improving the utilization rate of oxygen.
[0022] 4. In a preferred embodiment, the water spray pipe can be rotatably installed, rotating while spraying water, which improves the degassing effect, and the rotation does not require other power support. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.
[0024] in:
[0025] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;
[0026] Figure 2 This is a schematic diagram of the front cross-sectional structure of an embodiment of the present invention;
[0027] Figure 3 This is a schematic diagram of the connection method of the oxygen outlet pipe in one embodiment of the present invention;
[0028] Figure 4 This is a schematic diagram of the installation method of the water spray pipe in one embodiment of the present utility model;
[0029] Figure 5 This is a schematic diagram of the bottom structure of the degassing tower in one embodiment of the present invention.
[0030] The following are the annotations in the attached diagram: 1. Degassing tower; 11. Fan; 2. Gas chamber; 3. Oxygen pipe; 4. Oxygen supply equipment; 41. Oxygen inlet pipe; 5. Water spray pipe; 6. Receiving tank; 61. Water outlet; 7. Oxygen outlet pipe; 71. Check valve; 8. Screen plate; 100. Water inlet pipe. Detailed Implementation
[0031] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.
[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
[0033] It is understood that the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that terms such as “comprising,” “including,” or “having” specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.
[0034] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element present. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only. In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," and "middle," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of this invention and its embodiments and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this invention according to the specific circumstances.
[0035] Furthermore, the terms "set up," "equipped with," "connected," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.
[0036] ReferenceFigures 1 to 5 This utility model provides a water treatment device for aquaculture, including a degassing tower 1, several gas chambers 2, several oxygen pipes 3, an oxygen supply device 4, a water spray pipe 5, and one or more receiving tanks 6. The degassing tower 1 is open at the top, and an air inlet is provided on the side wall of the degassing tower 1. Several gas chambers 2 are located below the degassing tower 1 and are connected to the degassing tower 1. Each gas chamber 2 has an oxygen inlet and an oxygen outlet on its side wall. One end of each oxygen pipe 3 is connected to the oxygen outlet of one gas chamber 2, and the other end is connected to another gas chamber 2. The oxygen inlet of the gas chamber 2 is connected to all the gas chambers 2 in sequence through a plurality of oxygen pipes 3; the oxygen supply device 4 is connected to the oxygen inlet of the first gas chamber 2 in the plurality of gas chambers 2 in sequence through an oxygen inlet pipe 41, for supplying oxygen to the gas chamber 2; the water spray pipe 5 is located at the top of the degassing tower 1 for spraying water downwards; the receiving pool 6 is located at the lower end of the gas chamber 2 for receiving water flowing down from the gas chamber 2, and the bottom of the receiving pool 6 is provided with a water outlet 61 for draining water.
[0037] In some alternative embodiments, such as Figure 1 and Figure 2 As shown, the oxygen outlet and the oxygen inlet on the same air chamber 2 are staggered vertically. More specifically, the oxygen outlet and the oxygen inlet are located at the top and bottom of the side wall of the air chamber 2, respectively. In this way, oxygen can flow fully through the space of the air chamber 2, ensuring the oxygenation effect.
[0038] In some alternative embodiments, such as Figure 1 , Figure 2 and Figure 3 As shown, the aquaculture water treatment device also includes an oxygen outlet pipe 7. One end of the oxygen outlet pipe 7 is connected to the oxygen outlet of the last of the several sequentially connected air chambers 2, and the other end is connected to the oxygen inlet pipe 41. The oxygen outlet pipe 7 is equipped with a one-way valve 71. By connecting the oxygen outlet pipe 7 back to the oxygen inlet pipe 41, the oxygen can be fully utilized. At the same time, the one-way valve 71 fixes the flow direction of oxygen in the oxygen outlet pipe 7, thereby ensuring that the oxygen can circulate repeatedly in the air chambers 2. Furthermore, in application, the oxygen flux of the oxygen inlet pipe 41 is maintained at 1%-2% of the overall water flow rate of the equipment.
[0039] In some alternative embodiments, such as Figure 1As shown, a fan 11 is installed at the air inlet. The fan 11 blows air into the degassing tower, which facilitates airflow and increases the degassing effect of water droplets in the degassing tower. In a more preferred embodiment, the air inlet is located at the bottom of the side wall of the degassing tower 1. Of course, it should be noted that this is only a preferred embodiment of the present invention and does not constitute a limitation of this application. In some other optional embodiments, an exhaust device is installed at the upper end of the degassing tower 1, with a similar effect to the fan 11.
[0040] In some alternative embodiments, such as Figure 1 and Figure 2 As shown, the number of receiving pools 6 is the same as the number of air chambers 2; the receiving pools 6 are arranged one-to-one below the air chambers 2. In some more preferred embodiments, each air chamber 2 is integrally formed with one receiving pool 6, and multiple receiving pools 6 are interconnected through water outlet pipes.
[0041] In some alternative embodiments, such as Figure 1 and Figure 2 As shown, the number of air chambers 2 is 5-10.
[0042] In some alternative embodiments, such as Figure 1 and Figure 2 As shown, the height of the air chamber 2 is 40-60cm.
[0043] In some alternative embodiments, such as Figure 1 and Figure 2 As shown, the depth of the receiving pool 6 is 40-90cm.
[0044] In some alternative embodiments, such as Figure 1 , Figure 2 and Figure 1 As shown, a sieve plate 8 is provided between each of the gas chambers 2 and the degassing tower 1. The sieve plate 8 is arrayed with multiple water passage holes, and the diameter of the water passage holes is 4-8 mm. The hole diameter is controlled within this range to control the size of the water droplets while influencing the droplet droplet's descent, ensuring sufficient contact between the water droplets and pure oxygen and guaranteeing the dissolved oxygen effect.
[0045] In some alternative embodiments, such as Figure 2 and Figure 5 As shown, the height of the degassing tower 1 is 1.5-2.5m.
[0046] In some alternative embodiments, such as Figure 1 , Figure 2 and Figure 1 Figure 2 Figure 4As shown, the water spray pipe 5 is installed in a way that allows it to rotate around a vertical axis. More specifically, the water spray pipe 5 is connected to the water inlet pipe 100 via a movable connector. The part of the water spray pipe 5 connected to the water inlet pipe 100, i.e., the vertical part, has a fan-shaped structure inside. The fan-shaped structure rotates under the impact of the water flow, thereby driving the water spray pipe 5 to rotate and spray water simultaneously, making the water droplets more dispersed in the degassing tower 1 and allowing them to fully contact the air, resulting in a better degassing effect. Of course, the above is only one example of how the water spray pipe 5 can rotate. In some other optional embodiments, the above-mentioned fan-shaped structure is not provided. Instead, several small water outlet holes are opened on the side of the pipe wall of the water spray pipe 5. After the water flows into the water spray pipe 5, it sprays out from the small water outlet holes, simultaneously providing a reverse force to the water spray pipe 5, thereby causing the water spray pipe 5 to rotate.
[0047] In application, water is supplied to the water spraying pipe 5 in this embodiment through the water inlet pipe 100. The water head thickness is maintained at 5-8cm for optimal results. At this time, the total water inflow and total water outflow of the equipment are equal. The water outlet holes on the water spraying pipe 5 spray water into the degassing tower 1. The water droplets fall to the bottom of the degassing tower 1 under the action of gravity, and then enter the gas chamber 2 through the water passage holes of the sieve plate 8. During the descent process in the gas chamber 2, the oxygen fully contacts the pure oxygen. The oxygen diffuses freely through the gas-liquid interface into the water droplets with lower oxygen partial pressure, and is carried into the receiving pool 6 with the falling water droplets. The oxygen-enriched water is finally discharged from the water outlet 61.
[0048] The aquaculture water treatment device provided in this embodiment of the present invention has the following beneficial effects:
[0049] 1. Used for deaeration and oxygenation of recirculating aquaculture systems, it can simultaneously treat the recirculating water for both deaeration and oxygenation, improving treatment efficiency. At the same time, the deaeration and oxygenation structures are stacked vertically, which saves the overall footprint of the water treatment equipment. The water flow relies on gravity to continuously carry out the two steps of deaeration and oxygenation, without the need for an additional water pump to lift the water in between.
[0050] 2. The arrangement of multiple air chambers 2 and oxygen pipes 3 ensures that oxygen is fully diffused in the air chambers 2, thereby ensuring the dissolved oxygen effect;
[0051] 3. In a preferred embodiment, the oxygen outlet pipe 7 is also connected back to the oxygen inlet pipe 41 to recover oxygen and improve the utilization rate of oxygen.
[0052] 4. In a preferred embodiment, the water spray pipe 5 can be rotatably installed, rotating while spraying water, resulting in better degassing effect, and the rotation does not require other power device support.
[0053] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A water treatment device for aquaculture, characterized in that, include: A degassing tower (1) has an opening at its upper end and an air inlet on its side wall; several gas chambers (2) are located below the degassing tower (1) and communicate with it; each gas chamber (2) has an oxygen inlet and an oxygen outlet on its side wall; several oxygen pipes (3) have one end connected to the oxygen outlet of one gas chamber (2) and the other end connected to the oxygen inlet of another gas chamber (2), and all gas chambers (2) are connected to each other by several oxygen pipes (3). The following are connected in sequence: an oxygen supply device (4), which is connected to the oxygen inlet of the first gas chamber (2) of the several gas chambers (2) connected in sequence through an oxygen inlet pipe (41), for supplying oxygen to the gas chamber (2); a water spray pipe (5), which is located at the top of the degassing tower (1), for spraying water downwards; and one or more receiving pools (6), which are located at the lower end of the gas chamber (2), for receiving water flowing down from the gas chamber (2), and the bottom of the receiving pool (6) is provided with a water outlet (61), which is used for draining water.
2. The aquaculture water treatment device as described in claim 1, characterized in that, The oxygen outlet and the oxygen inlet on the same gas chamber (2) are staggered vertically.
3. The aquaculture water treatment device as described in claim 1 or 2, characterized in that, The aquaculture water treatment device also includes an oxygen outlet pipe (7), one end of which is connected to the oxygen outlet of the last of the several air chambers (2) that are connected in sequence, and the other end is connected to the oxygen inlet pipe (41). The oxygen outlet pipe (7) is equipped with a one-way valve (71).
4. The aquaculture water treatment device as described in claim 1, characterized in that, A fan (11) is installed at the air inlet.
5. The aquaculture water treatment device as described in claim 1, characterized in that, The number of receiving pools (6) is the same as the number of air chambers (2); the receiving pools (6) are arranged one-to-one directly below the air chambers (2).
6. The aquaculture water treatment device as described in claim 1 or 5, characterized in that, The number of air chambers (2) is 5-10.
7. The aquaculture water treatment device as described in claim 6, characterized in that, The height of the air chamber (2) is 40-60cm.
8. The aquaculture water treatment device as described in claim 6, characterized in that, The depth of the receiving pool (6) is 40-90cm.
9. The aquaculture water treatment device as described in claim 1, characterized in that, A sieve plate (8) is provided between each gas chamber (2) and the degassing tower (1), and the sieve plate (8) is arrayed with multiple water passage holes, the diameter of which is 4-8 mm.
10. The aquaculture water treatment device as described in claim 1, characterized in that, The height of the degassing tower (1) is 1.5-2.5m.
11. The aquaculture water treatment device as described in claim 1, characterized in that, The water spray pipe (5) is installed in a way that allows it to rotate around a vertical axis, and several small water outlet holes are provided on the side of the pipe wall of the water spray pipe (5).