A recirculating water temporary housing system

Abstract

The utility model provides a kind of circulating water temporary rearing system, including temporary rearing unit, pumping unit, microfiltration unit, oxidation unit, gas stripping unit, balance pool, the bottom of the temporary rearing pool is provided with a bottom push pipe, a sewage tank is arranged on the lateral wall of the temporary rearing pool, the sewage tank lower end is received with a water guide pipe, the pumping unit includes a pump pool, water guide pipe is connected with pump pool by pipeline, pump pool is connected with microfiltration unit by pipeline, microfiltration unit includes a microfiltration machine, the oxidation unit is connected with gas stripping unit by pipeline, gas stripping unit is connected with balance pool by pipeline, balance pool is connected with the bottom push pipe of temporary rearing pool by pipeline, form a circulation body.The utility model is through multistage water quality treatment+gas control+recurrent flow design, realizes the efficient purification and recycling use of aquaculture water body, not only improves aquaculture survival rate and water quality stability, also has the advantages such as energy saving, environmental protection, easy maintenance.

Description

Technical Field

[0001] This utility model relates to the field of aquaculture technology, specifically to a recirculating water holding system. Background Technology

[0002] Aquatic products must undergo sorting and temporary holding before transportation. The purpose of temporary holding is to reduce the activity level of the aquatic products and allow them to adapt to the high-density farming environment, preparing them for subsequent distribution. Temporary holding refers to the short-term feeding of aquatic animal seedlings or finished products. The main purposes of temporary holding of aquatic animals include: first, reducing the activity level of the aquatic animals and allowing them to adapt to the high-density farming environment in preparation for later distribution; second, allowing the aquatic animals to live in an environment different from their original habitat for a period of time to remove mud and sand from their bodies and reduce the muddy or fishy smell when consumed.

[0003] Existing temporary holding systems typically employ a combination of physical filtration and chemical or biological purification. For example, microfiltration or protein skimmers remove solid particles, biofilters degrade ammonia nitrogen and nitrite, or chemical agents such as chlorine and chlorine dioxide are used for disinfection. However, existing temporary holding systems still have significant shortcomings. First, regarding purification effectiveness and safety, while the traditional combination of physical filtration and biological purification can remove some suspended solids and degrade ammonia nitrogen, its effectiveness in killing pathogenic microorganisms in the water is limited, and the treatment cycle is long. While using chemical agents such as chlorine for disinfection improves effectiveness, it easily leads to drug residues, affecting the safety of aquatic products for consumption and causing secondary pollution. Second, when applying more efficient ozone disinfection technology, although ozone can quickly kill pathogens and decompose organic matter, ozone often remains in the treated water or forms dissolved gas supersaturation. If directly returned to the aquaculture pond, this can seriously harm fish health, leading to gas embolism and even mass mortality. This safety bottleneck greatly limits the safe and reliable application of ozone technology at the aquaculture end. Summary of the Invention

[0004] The purpose of this invention is to provide a recirculating water temporary holding system that can effectively remove solid pollutants and dissolved organic matter, completely kill pathogenic microorganisms, and eliminate the risk of toxicity to cultured organisms from residual ozone and gas supersaturation, thereby improving the survival rate of cultured organisms and the stability of water quality.

[0005] The technical solution adopted in this utility model is as follows: A circulating water temporary holding system includes a temporary holding unit, a pumping unit, a microfiltration unit, an oxidation unit, a gas stripping unit, and a balancing tank. A bottom push pipe is installed on the bottom surface of the temporary holding tank, and a sludge discharge trough is installed on the side wall of the temporary holding tank. A water guide pipe is connected to the lower end of the sludge discharge trough. The pumping unit includes a pump pool, and the water guide pipe is connected to the pump pool via a pipe. The pump pool is connected to the microfiltration unit via a pipe. The microfiltration unit includes a microfilter. The oxidation unit includes a mixing tower and an ozone generator connected to it. The mixing tower is connected to the microfilter via an inlet pipe equipped with an ejector. The ozone generator is connected to the ejector via a pipe. An outlet pipe is installed at the lower end of the mixing tower and is connected to the gas stripping unit. The gas stripping unit is connected to the balancing tank via a pipe. The balancing tank is connected to the bottom push pipe of the temporary holding tank via a pipe, forming a circulating system.

[0006] Furthermore, the bottom push pipe is equipped with multiple water outlet nozzles, which are evenly distributed on the bottom push pipe. The water outlet nozzles are installed at a 45° angle on the bottom push pipe and face the inner lower side of the temporary holding tank.

[0007] Furthermore, the sewage trough has a square pool structure, and the bottom of the sewage trough is significantly higher than the bottom of the temporary holding pool.

[0008] Furthermore, a sewage pipe is connected to the lower end of the sewage trough. The sewage pipe passes through the side wall of the temporary holding tank and extends into the tank. The front opening of the sewage pipe is located at the axial position of the tank. The part of the sewage pipe inside the tank is a semi-circular tube that covers the bottom surface.

[0009] Furthermore, the pump pool is a pool structure, with the bottom of the pump pool being level with or slightly lower than the bottom of the temporary holding pool. The water guide pipe of the temporary holding pool is connected to the upper middle part of the pump pool, and a water pump is installed on the pipe connecting the pump pool and the microfilter.

[0010] Furthermore, the microfilter is installed on the ground via a frame, the height of which is significantly higher than the height of the temporary holding tank and the pump tank, and a rotating screen is installed inside the microfilter.

[0011] Furthermore, the gas stripping unit includes a degassing tower and a fan connected to the top of the degassing tower. The degassing tower has a cylindrical structure, and its height is the same as or slightly lower than that of the mixing tower. A water inlet pipe is provided in the upper middle part of the degassing tower. One end of the water inlet pipe is connected to the outlet of the mixing tower through a pipe, and the other end extends into the degassing tower and extends to the axis of the degassing tower. An air duct is provided at the top of the degassing tower, and an air duct pipe is connected to the air duct. The fan is connected to the other end of the air duct pipe. An outlet is provided at the bottom of the degassing tower, and the outlet is connected to the balance tank through a pipe.

[0012] Furthermore, the balancing tank is equipped with an air source unit and an air compressor. The air source unit includes an air source main unit, a balancing water pipe, a circulation pump, and a temperature sensor. The air source main unit is connected to the balancing tank through a pipe. The circulation pump is installed on the pipe connecting the air source main unit and the balancing tank and is electrically connected to the air source unit. The temperature sensor is installed inside the balancing tank and is electrically connected to the air source main unit. The balancing tank is connected to the bottom push pipe of the temporary holding tank through the balancing water pipe.

[0013] Furthermore, a microporous aeration assembly is provided in the balance tank. The microporous aeration assembly consists of multiple PE pipes, each with aeration holes of 0.1-0.3 mm in diameter. The PE pipes are evenly laid at the bottom of the balance tank. The air compressor is connected to the microporous aeration assembly via a high-pressure air pipe.

[0014] Furthermore, a centrifugal pump is installed inside the balance water pipeline.

[0015] Compared with the prior art, the beneficial effects obtained by this utility model are as follows: This invention employs a three-stage synergistic treatment process: physical filtration (microfiltration machine) → advanced oxidation (ozone mixing tower) → gas stripping (degassing tower). This process not only effectively removes solid pollutants and dissolved organic matter and completely kills pathogenic microorganisms, but also eliminates the toxic risks to farmed organisms from residual ozone and gas supersaturation through a dedicated degassing tower. This solves the core safety bottleneck of ozone technology in aquaculture. Furthermore, the entire process utilizes physical and ozone oxidation principles, eliminating the need for any chemical additives, thus avoiding drug residues and ensuring the safety and high quality of the produced aquatic products. It also produces no secondary pollution, is environmentally friendly, and the system forms a complete closed-loop cycle, greatly reducing the frequency of water changes and the consumption of fresh water. It is suitable for water-scarce areas and high-density intensive aquaculture scenarios, significantly reducing operating costs. Attached Figure Description

[0016] Appendix Figure 1 This is a schematic diagram of the circulating water temporary support system described in this utility model; Appendix Figure 2 This is a perspective view of the circulating water temporary support system described in this utility model; Appendix Figure 3 It is attached Figure 1 The diagram shows the structure of the overflow mechanism. Detailed Implementation

[0017] 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.

[0018] like Figures 1-2 As shown, a circulating water temporary conditioning system includes a temporary conditioning unit, a pumping unit, a microfiltration unit, an oxidation unit, a gas stripping unit, and a balance tank 6. The temporary conditioning unit, pumping unit, microfiltration unit, oxidation unit, gas stripping unit, and balance tank 6 are connected in sequence by pipelines. The balance tank 6 is connected to the temporary conditioning unit by a pipeline to form a closed-loop circulation system.

[0019] The temporary holding unit is used for short-term rearing of aquatic animals. The unit includes multiple parallel-connected temporary holding ponds 1. The number of ponds 1 can be adjusted according to the site size. In this invention, the unit has six ponds 1, each with a horizontal bottom surface. Figure 3 As shown, a bottom push pipe 11 is provided on the bottom surface of the temporary holding tank 1. The bottom push pipe 11 is connected to the balance tank 6 through a pipe. The bottom push pipe 11 is used to inject the temperature-adjusted water in the balance tank 6 into the temporary holding tank 1 and provide the power to drive the water flow. Multiple water outlet nozzles 12 are provided on the bottom push pipe 11. The multiple water outlet nozzles 12 are evenly distributed on the bottom push pipe 2. The water outlet nozzles 12 are installed at 45° on the bottom push pipe 2 and face the inner lower side of the temporary holding tank. They are used to drive the water to circulate. The water is sprayed out from the water outlet nozzles 12, which drives the water in the temporary holding unit to rotate. Preferably, each bottom push pipe 11 of the temporary holding tank 1 is provided with a valve to control the opening and closing of the bottom push pipe 11.

[0020] A drainage trough 13 is provided on the side wall of the temporary holding tank 1. The drainage trough 13 has a square tank structure, and the bottom of the drainage trough 13 is significantly higher than the bottom of the temporary holding tank 1. Preferably, the bottom of the drainage trough 13 is located at one-third of the height of the side wall of the temporary holding tank 1. The drainage trough 13 is used to temporarily store water containing impurities. A drainage pipe 14 is connected to the lower end of the drainage trough 13. The drainage pipe 14 passes through the side wall of the temporary holding tank 1 and extends into the interior of the temporary holding tank 1. The front opening of the drainage pipe 14 is located at the axial position of the temporary holding tank 1. The part of the drainage pipe 14 inside the temporary holding tank 1 is a semi-circular tube, which covers the bottom surface 11. Water in the temporary holding tank 1 can enter the drainage trough 13 through the drainage pipe 14. The water sprayed from the water nozzle 12 pushes the water in the temporary holding tank 1 to rotate, forming a vortex at the axial position of the temporary holding tank 1. At the center of the vortex, impurities such as feces in the water are drawn towards the axis of the holding tank 1 under the action of centripetal force and discharged with the water through the drain pipe 14. The design of the drain trough 13 and the drain pipe allows the drain trough 13 to generate a siphon effect with the holding tank 1. Water containing impurities in the holding tank 1 can enter the drain trough 13 through the drain pipe 14, and the water in the drain trough 13 can reach the same water level as the water in the holding tank 1. A water guide pipe 15 is connected to the lower end of the drain trough 13. The water guide pipe 15 is used to discharge the water in the drain trough 13. A valve is installed on the water guide pipe 15. The water discharge speed can be controlled by adjusting the opening and closing degree of the valve. The water guide pipe 15 is connected to the pumping unit through a pipeline. Water containing impurities in the drain trough 13 is discharged into the pumping unit through the water guide pipe 15 for recycling.

[0021] The pumping unit is used to temporarily store water. The pumping unit includes a pump pool 2, which is a pool structure. The bottom of the pump pool 2 is level with or slightly lower than the bottom of the temporary holding pool 1. The water guide pipe 15 of the temporary holding pool 1 is connected to the middle and upper part of the pump pool 2. The water in the sewage trough 13 can flow naturally into the pump pool 2 under the action of gravity. The pump pool 2 is connected to the microfiltration unit through a pipe. Correspondingly, a water pump 21 is installed on the pipe connecting the pump pool 2 and the microfiltration unit. The water pump 21 provides power for water transportation and pumps the water in the pump pool 2 into the microfiltration unit.

[0022] The microfiltration unit is used to filter impurities in the water. The microfiltration unit includes a microfilter 3, which is installed on the ground via a frame 31. The height of the frame 31 is significantly higher than that of the holding tank 1 and the pump tank 2. The microfilter 3 is connected to the pump tank 2 via a pipe. The microfilter 3 is used to physically filter suspended solids in the water. A rotating screen is installed inside the microfilter 3. The water in the pump tank 2 is first lifted to the microfilter 3. The rotating screen of the microfilter 3 performs fine physical filtration to remove suspended solids such as feces and uneaten feed. The impurities filtered out by the microfilter 3 are collected and treated through the waste collection port. The water filtered by the microfilter 3 flows to the oxidation unit.

[0023] The oxidation unit includes a mixing tower 4 and an ozone generator 41 connected thereto. The mixing tower 4 is connected to the microfilter 3 through an inlet pipe equipped with an ejector. The mixing tower 4 has a cylindrical structure and its height is slightly lower than that of the microfilter 3. The ozone generator 41 is connected to the ejector through a pipe. The high-concentration ozone generated by the ozone generator 41 is drawn into the high-speed water flow through the ejector and pulverized into microbubbles, achieving preliminary and efficient mixing with the water. The mixed gas-water two-phase flow enters the interior of the mixing tower 4 for full contact and reaction, completing the oxidation of organic matter, ammonia nitrogen, etc. in the water and the killing of pathogenic microorganisms. The water after ozone disinfection flows to the gas stripping unit. An outlet pipe is provided at the lower end of the mixing tower 4 and is connected to the gas stripping unit.

[0024] The gas stripping unit includes a degassing tower 5 and a fan 51 connected to the top of the degassing tower 5. The degassing tower 5 has a cylindrical structure, and its height is the same as or slightly lower than that of the mixing tower 4. The number of degassing towers 5 can be set as needed. In this embodiment, two degassing towers 5 are provided, and the two degassing towers 5 are designed in parallel. A water inlet pipe is provided in the upper middle part of the degassing tower 5. One end of the water inlet pipe is connected to the outlet of the mixing tower 4 through a pipe, and the other end extends into the degassing tower 5 and extends to the axis of the degassing tower 5. The water after ozone disinfection flows downward from the water inlet pipe. When the water level in the mixing tower 4 is higher than the position of the water inlet pipe, the water in the mixing tower 4... Under atmospheric pressure, water enters the degassing tower 5 through the inlet pipe. The top of the degassing tower 5 is equipped with an air duct, and an air duct pipe 52 is connected to the air duct. The blower 51 is connected to the other end of the air duct pipe 52. When the blower 51 is working, it forms an upward forced airflow in the degassing tower 5, which fully contacts the falling water film or water droplets rich in residual ozone, blowing off the ozone and other harmful gases (such as nitrogen and carbon dioxide) dissolved in the water and expelling them from the outside of the system, thus completely eliminating their toxic risks to the farmed organisms. The bottom of the degassing tower 5 is equipped with a water outlet, which is connected to the balance tank 6 through a pipe. The water that has been degassed flows to the balance tank 6.

[0025] The balancing tank 6 is used to receive and buffer deaerated water before returning it to the temporary holding tank 1. The water, after deep purification and deaeration, is temporarily stored and buffered in the balancing tank 6 to further stabilize water quality (such as pH and dissolved oxygen). The balancing tank 6 is connected to an air source unit and an air compressor 64. The air source unit controls the temperature of the water in the balancing tank 6 and includes an air source unit 61, a balancing water pipe 62, a circulation pump 63, and a temperature sensor (not shown). The air source unit 61 is connected to the balancing tank 6 via a pipe. The circulation pump 63 is installed on the pipe connecting the air source unit 61 and the balancing tank 6 and is electrically connected to the air source unit. The circulation pump 63 pumps water from the balancing tank 6 into the air source unit 61. The air source unit 61 heats the water in winter or at low temperatures, or cools the water in summer at high temperatures, ensuring the water remains within the optimal temperature range for fish growth throughout the year. The temperature sensor is installed inside the balancing tank 6. The sensor is electrically connected to the air source heat pump unit 61. The temperature sensor is used to monitor the water temperature in the balance tank 6 in real time. When the water temperature is too high or too low, the air source heat pump unit 61 drives the circulation pump 63 to start, pumping the water into the air source heat pump unit 61 for heating or cooling, and then returning it to the balance tank 6. The balance tank 6 is equipped with a microporous aeration assembly (not shown in the figure). The microporous aeration assembly consists of multiple PE pipes, each with aeration holes with a diameter of 0.1-0.3 mm. The PE pipes are evenly laid at the bottom of the balance tank 6. The air compressor is connected to the microporous aeration assembly via a high-pressure air pipe. The air compressor is used to pump air into the balance tank 6 to oxygenate the water. The balance tank 6 is connected to the bottom push pipe 11 of the temporary holding tank 1 via a balance water pipe 62. Furthermore, a centrifugal pump 621 is installed in the balance water pipe 62 to provide power for water flow. The water in the balance tank 6 is heated or cooled by the air source heat pump 61 and oxygenated before being injected into each temporary holding tank 1 through the balance water pipe 62 and the bottom push pipe 11.

[0026] The method of using this utility model is as follows: 1. Drainage: Water containing impurities in the temporary holding tank 1 can enter the sewage trough 13 through the sewage pipe 14, and then be discharged into the pump tank 2 through the water guide pipe 15. 2. Lifting and Filtration: Pump 21 pumps the water in pump pool 2 into microfilter 3, where solid-liquid separation is achieved through the filter screen of microfilter 3, and solid particles are filtered out. 3. Ozone oxidation: Water filtered by microfilter 3 is transported through pipelines. When it flows through the jet injector, it is drawn into the ozone generated by ozone generator 41, forming a gas-water mixture that enters the mixing tower 4. In the mixing tower 7, ozone and water come into full contact and react to complete the disinfection and oxidation process, thereby oxidizing organic matter, ammonia nitrogen, etc. in the water and killing pathogenic microorganisms. 4. Degassing treatment: Water treated with ozone enters the top of degassing tower 5 and falls in a dispersed manner. At the same time, blower 51 continuously blows air into degassing tower 5. In the counter-current contact between the falling water film and the rising airflow, residual ozone and other gases are efficiently stripped off and discharged through air duct 52. 5. Buffering and reflux: The deaerated safe water flows into the balancing tank 6 to stabilize the water quality. The water in the balancing tank 6 is heated or cooled by the air source heat pump 61 and aerated before being injected into each temporary holding tank 1 through the balancing water pipe 62 and the bottom push pipe 11 for use by the cultured organisms.

[0027] This temporary holding system achieves efficient purification and recycling of aquaculture water through multi-stage water treatment, gas control, and recirculation design. It not only improves the survival rate and water quality stability of aquaculture, but also has the advantages of energy saving, environmental protection, and easy maintenance, making it suitable for modern intensive and sustainable aquaculture models.

[0028] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the contents of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A circulating water temporary conditioning system, comprising a temporary conditioning unit, a pumping unit, a microfiltration unit, an oxidation unit, a gas stripping unit, and a balancing tank, characterized in that: The temporary holding unit includes multiple temporary holding tanks connected in parallel. A bottom push pipe is provided on the bottom surface of each temporary holding tank, and a sludge discharge trough is provided on the side wall of each temporary holding tank. A water guide pipe is connected to the lower end of the sludge discharge trough. The pumping unit includes a pump pool, and the water guide pipe is connected to the pump pool through a pipe. The pump pool is connected to a microfiltration unit through a pipe. The microfiltration unit includes a microfilter. The oxidation unit includes a mixing tower and an ozone generator connected to it. The mixing tower is connected to the microfilter through an inlet pipe equipped with an ejector. The ozone generator is connected to the ejector through a pipe. An outlet pipe is provided at the lower end of the mixing tower and is connected to a gas stripping unit. The gas stripping unit is connected to a balancing tank through a pipe. The balancing tank is connected to the bottom push pipe of the temporary holding tank through a pipe, forming a circulation system.

2. The circulating water temporary support system according to claim 1, characterized in that: Multiple water outlet nozzles are installed on the bottom push pipe, and the multiple water outlet nozzles are evenly distributed on the bottom push pipe. The water outlet nozzles are installed on the bottom push pipe at a 45° angle and face the inner lower side of the temporary holding tank.

3. The circulating water temporary support system according to claim 1, characterized in that: The sewage trough has a square pool structure, and the bottom of the sewage trough is significantly higher than the bottom of the temporary holding pool.

4. The circulating water temporary support system according to claim 1, characterized in that: The lower end of the sewage trough is connected to a sewage pipe, which extends through the side wall of the temporary holding tank into the tank. The front opening of the sewage pipe is located at the axial position of the temporary holding tank. The part of the sewage pipe inside the temporary holding tank is a semi-circular tube, which covers the bottom surface.

5. The circulating water temporary support system according to claim 1, characterized in that: The pump pool is a pool structure. The bottom of the pump pool is level with or slightly lower than the bottom of the temporary holding pool. The water pipe of the temporary holding pool is connected to the upper middle part of the pump pool. A water pump is installed on the pipe connecting the pump pool and the microfilter.

6. The circulating water temporary support system according to claim 1, characterized in that: The microfilter is installed on the ground via a frame, the height of which is significantly higher than the height of the temporary holding tank and the pump tank. A rotating screen is installed inside the microfilter.

7. The circulating water temporary support system according to claim 1, characterized in that: The gas stripping unit includes a degassing tower and a fan connected to the top of the degassing tower. The degassing tower is a cylindrical structure with a height that is the same as or slightly lower than that of the mixing tower. A water inlet pipe is provided in the upper middle part of the degassing tower. One end of the water inlet pipe is connected to the outlet of the mixing tower through a pipeline, and the other end extends into the degassing tower and extends to the axis of the degassing tower. An air duct is provided at the top of the degassing tower, and an air duct pipe is connected to the air duct. The fan is connected to the other end of the air duct pipe. An outlet is provided at the bottom of the degassing tower, and the outlet is connected to the balance tank through a pipeline.

8. The circulating water temporary support system according to claim 1, characterized in that: The balancing tank houses an air source unit and an air compressor. The air source unit includes an air source main unit, a balancing water pipe, a circulating pump, and a temperature sensor. The air source main unit is connected to the balancing tank via a pipe. The circulating pump is installed on the pipe connecting the air source main unit and the balancing tank and is electrically connected to the air source unit. The temperature sensor is installed inside the balancing tank and is electrically connected to the air source main unit. The balancing tank is connected to the bottom push pipe of the temporary holding tank via a balancing water pipe.

9. The circulating water temporary support system according to claim 8, characterized in that: The balance tank is equipped with a microporous aeration component, which consists of multiple PE pipes. The pipes have aeration holes with a diameter of 0.1-0.3 mm. The PE pipes are evenly laid at the bottom of the balance tank. The air compressor is connected to the microporous aeration component through a high-pressure air pipe.

10. The circulating water temporary support system according to claim 8, characterized in that: A centrifugal pump is installed inside the balance water pipeline.

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