Integrated electrocoagulation cyclone and vertical flow sedimentation device for recirculating aquaculture

Abstract

The utility model discloses an integrated formula electric flocculation cyclone, vertical flow precipitation device for circulating water aquaculture, including the cyclone chamber, air floatation chamber, settling chamber and control cabinet through the flange from top to bottom connection, cyclone chamber is equipped with cyclone cylinder, tangential inlet pipe drive water flow forms centrifugal force separation big particle impurity, the concentric alternate arrangement of ring titanium base electrode group and center vertical pipe are built -in in settling chamber, and water flow enters vertical pipe and flows upward after the downward impact reflection board of water -stop valve, under the synergistic effect of electric flocculation and vertical flow precipitation, and the floc is generated, air floatation chamber realizes dreg separation through support plate, layered board and overflow cylinder with the water outlet, and control cabinet monitors floc layer height by turbidity sensor, and dynamic regulation water -stop valve opening degree to stabilize the precipitation efficiency, the utility model discloses through the integration of cyclone separation, electric flocculation intensification, vertical flow precipitation and air floatation process, and the removal rate of suspended solids is improved significantly, and it is applicable to the efficient purification of circulating water aquaculture system.

Description

Technical Field

[0001] This utility model relates to the field of water treatment technology for recirculating aquaculture systems, and in particular to an integrated electrocoagulation vortex and vertical flow sedimentation device for recirculating aquaculture systems. Background Technology

[0002] In recirculating aquaculture systems, the efficiency of wastewater treatment directly impacts water quality stability and aquaculture profitability. Traditional sedimentation devices suffer from low separation efficiency, large footprint, and complex operation. Existing electrocoagulation equipment often experiences efficiency reduction due to electrode passivation, and the integration design of traditional vertical flow sedimentation structures with cyclone and flotation processes is insufficient, resulting in incomplete impurity removal and affecting subsequent treatment effects. Therefore, there is an urgent need for an integrated, intelligent, and durable water treatment device. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides an integrated electrocoagulation vortex and vertical flow sedimentation device for recirculating aquaculture systems. Through the vertical integration of the vortex chamber, flotation chamber, and sedimentation chamber, it occupies a small area and combines electrocoagulation with intelligent control technology to achieve efficient water treatment, making it suitable for water purification in recirculating aquaculture systems.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: an integrated electrocoagulation vortex and vertical flow sedimentation device for recirculating aquaculture, comprising a vortex chamber, an air flotation chamber, a settling chamber, and a control cabinet. The vortex chamber and the settling chamber have cylindrical sidewalls and conical bottoms, and the air flotation chamber has a cylindrical structure. The vortex chamber, air flotation chamber, and settling chamber are arranged sequentially from top to bottom and are fixedly connected by flanges.

[0005] Cyclone Chamber: The cyclone tube has a cylindrical sidewall and a conical bottom structure. The cyclone tube and the sidewall of the cyclone chamber are concentrically arranged. The upper part of the cyclone tube is fixedly connected to the sidewall of the cyclone chamber through a connecting rod. An overflow pipe is set at the center of the top of the cyclone tube. The inlet pipe is set at the upper part of the sidewall of the cyclone chamber. The inlet pipe passes through the sidewall of the cyclone chamber and connects to the upper part of the sidewall of the cyclone tube. The outlet end of the inlet pipe is tangential to the sidewall of the cyclone tube, thereby guiding the fluid to form a high-efficiency swirling motion. An inlet valve is set on the inlet pipe. The slag discharge pipe is set at the lower part of the sidewall of the cyclone chamber. The slag discharge pipe passes through the sidewall of the cyclone chamber and connects to the bottom of the cyclone tube. A slag discharge valve is set on the slag discharge pipe. The water-blocking valve is set at the center of the bottom of the cyclone chamber. Open the inlet valve, and the aquaculture wastewater enters the cyclone chamber tangentially through the inlet pipe. A vortex is formed inside the cyclone chamber, and large particles of impurities are thrown against the cylinder wall by centrifugal force and sink. They are then discharged through the slag discharge pipe. The water filtered by the cyclone overflows from the overflow pipe into the cyclone chamber, awaiting further processing.

[0006] Flotation Chamber: The support plate has a frustum-shaped structure, and its outer side is connected to the side wall of the flotation chamber. The overflow cylinder has a frustum-shaped upper part and a cylindrical lower part, and is concentrically arranged with the side wall of the flotation chamber. The lower part of the overflow cylinder is connected to the inner side of the support plate. The layering plate has a frustum-shaped structure and is located directly above the support plate. The outer side of the layering plate is connected to the side wall of the flotation chamber, and the inner side is connected to the cylinder wall of the overflow cylinder. Drainage outlets are evenly distributed on the cylinder wall of the overflow cylinder, and the drainage outlets are located between the support plate and the layering plate. The scum discharge pipe is located on the side wall of the flotation chamber, and its lower edge is adjacent to the layering plate. The water outlet pipe is located on the side wall of the flotation chamber, and its lower edge is adjacent to the support plate. Microbubbles generated by electrocoagulation carry suspended solids to the surface. The scum overflows the upper edge of the overflow cylinder and is discharged through the scum discharge pipe. The treated clean water flows out through the drainage outlets on the cylinder wall of the overflow cylinder and is then discharged from the device through the water outlet pipe.

[0007] Settling Chamber: The lower part of the settling chamber is equipped with supporting legs. A drain pipe is located at the center of the bottom of the settling chamber, and a drain valve is installed on the drain pipe. The central vertical pipe has a cylindrical upper part and a frustum-shaped lower part structure. The central vertical pipe is concentrically arranged with the side wall of the settling chamber, and the upper part of the central vertical pipe is fixedly connected to the bottom of the vortex chamber. The electrocoagulation assembly is located in the upper middle part of the settling chamber. The electrocoagulation assembly includes electrode group one, electrode group two, a DC power supply, and a fixed bracket. Electrode group one and electrode group two have annular tubular structures, and electrode group one and... Electrode groups 1 and 2 are arranged concentrically and alternately. Electrode groups 1 and 2 are located between the inner wall of the settling chamber and the outer wall of the central vertical pipe. Electrode groups 1 and 2 are concentrically arranged with the side wall of the settling chamber and fixed to the side wall of the settling chamber by a fixing bracket. The DC power supply is connected to electrode groups 1 and 2 respectively. The reflector is a conical structure and is located directly below the central vertical pipe. It is fixed to the bottom of the settling chamber by a support rod. The turbidity sensor is located above electrode groups 1 and 2 of the electrocoagulation component. After the water is separated and filtered by the cyclone separator, the water temporarily stored in the cyclone chamber enters the central vertical pipe through the water-blocking valve. It flows from top to bottom, and after being reflected by the conical reflector, it flows from bottom to top between the inner wall of the settling chamber and the outer wall of the central vertical pipe. This process performs vertical sedimentation on the water, removing small particulate waste and some suspended solids. At the same time, when the water flows through the electrocoagulation component, the pulse power supply drives the titanium-based electrode to electrolyze and generate metal ions, which form flocs with pollutants. The tiny bubbles generated by electrocoagulation carry the suspended solids to the surface, further removing suspended solids from the water.

[0008] Control Cabinet: The control cabinet is connected to the turbidity sensor, the water-blocking valve, and the inlet valve. The control cabinet controls the start and stop of the cyclone filtration in the cyclone chamber by controlling the opening and closing of the inlet valve; the turbidity sensor monitors the height of the suspended layer in real time, and works with the control cabinet to automatically adjust the opening of the water-blocking valve (the control cabinet reduces the opening of the water-blocking valve when the suspended layer height is too high, and increases the opening of the water-blocking valve when the suspended layer height is too low), dynamically controlling the suspended layer to remain stable within a suitable height range.

[0009] Furthermore, the electrode group one and electrode group two of the electrocoagulation component are titanium-based coated electrodes. Titanium-based coated electrodes are corrosion-resistant and have a long service life.

[0010] Furthermore, the DC power supply of the electrocoagulation component adopts a pulsed power supply with a periodic commutation mode. The periodic commutation mode of the DC power supply can reduce electrode loss under single polarity and prevent electrode scaling; the pulsed power supply can enhance bubble generation, improve flotation efficiency, and improve floc aggregation efficiency.

[0011] The beneficial effects of this invention are as follows: The integrated design of cyclone separation, vertical flow sedimentation, and electrocoagulation reduces the floor space required; the tangential water inlet of the cyclone cylinder creates centrifugal force to separate large particles of impurities; the electrocoagulation component, combined with a pulse power supply, enhances the flocculation and sedimentation of pollutants; and the vertical flow sedimentation further strengthens the interception and sedimentation of suspended solids, significantly improving water treatment effect and efficiency; the device can be separated via a flange, and the electrode assembly is detachable and replaceable, making maintenance convenient; the height of the suspended layer is dynamically controlled to prevent floc loss and ensure stable effluent quality; and the pulse commutation power supply extends electrode life and reduces maintenance costs. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the structure of the electrocoagulation component of this utility model.

[0014] Figure 3 This is a top view of the vortex chamber of this utility model.

[0015] The following are the labels in the diagram: 1. Cyclone chamber, 2. Flotation chamber, 3. Sedimentation chamber, 4. Cyclone cylinder, 5. Overflow pipe, 6. Inlet pipe, 7. Inlet valve, 8. Slag discharge pipe, 9. Slag discharge valve, 10. Connecting rod, 11. Water-proof valve, 12. Support rod, 13. Central vertical pipe, 14. Support plate, 15. Overflow cylinder, 16. Layering plate, 17. Drain outlet, 18. Scum discharge pipe, 19. Outlet pipe, 20. Sewage pipe, 21. Sewage valve, 22. Electrocoagulation assembly, 2201. Electrode group one, 2202. Electrode group two, 2203. DC power supply, 2204. Fixed bracket, 23. Turbidity sensor, 24. Reflector plate, 25. Control cabinet, 26. Support leg, 27. Flange. Detailed Implementation

[0016] like Figures 1-3 As shown, an integrated electrocoagulation cyclone and vertical flow sedimentation device for recirculating aquaculture includes a cyclone chamber 1, an air flotation chamber 2, a settling chamber 3, and a control cabinet 25. The cyclone chamber 1 and the settling chamber 3 are cylindrical on the side walls and conical at the bottom, and the air flotation chamber 2 is a cylindrical structure. The cyclone chamber 1, the air flotation chamber 2, and the settling chamber 3 are arranged sequentially from top to bottom and are fixedly connected by a flange 27.

[0017] Cyclone Chamber: The cyclone cylinder 4 has a cylindrical sidewall and a conical bottom structure. The cyclone cylinder 4 is concentrically arranged with the sidewall of the cyclone chamber 1. The upper part of the cyclone cylinder 4 is fixedly connected to the sidewall of the cyclone chamber 1 through the connecting rod 10. An overflow pipe 5 is provided at the center of the top of the cyclone cylinder 4. The inlet pipe 6 is provided at the upper part of the sidewall of the cyclone chamber 1. The inlet pipe 6 passes through the sidewall of the cyclone chamber 1 and is connected to the upper part of the sidewall of the cyclone cylinder 4. The outlet end of the inlet pipe 6 is tangential to the sidewall of the cyclone cylinder 4, thereby guiding the fluid to form a high-efficiency swirling motion. An inlet valve 7 is provided on the inlet pipe 6. The slag discharge pipe 8 is provided at the lower part of the sidewall of the cyclone chamber 1. The slag discharge pipe 8 passes through the sidewall of the cyclone chamber 1 and is connected to the bottom of the cyclone cylinder 4. A slag discharge valve 9 is provided on the slag discharge pipe 8. The water isolation valve 11 is provided at the center of the bottom of the cyclone chamber 1.

[0018] Flotation chamber: The support plate 14 has a frustum-shaped structure, and the outer side of the support plate 14 is connected to the side wall of the flotation chamber 2. The overflow cylinder 15 has a frustum-shaped upper part and a cylindrical lower part. The overflow cylinder 15 is concentrically arranged with the side wall of the flotation chamber 2. The lower part of the overflow cylinder 15 is connected to the inner side of the support plate 14. The layering plate 16 has a frustum-shaped structure and is located directly above the support plate 14. The outer side of the layering plate 16 is connected to the side wall of the flotation chamber 2, and the inner side is connected to the cylinder wall of the overflow cylinder 15. Drainage outlets 17 are evenly distributed on the cylinder wall of the overflow cylinder 15. The drainage outlets 17 are located between the support plate 14 and the layering plate 16. The scum discharge pipe 18 is located on the side wall of the flotation chamber 2. The lower edge of the scum discharge pipe 18 is adjacent to the layering plate 16. The water outlet pipe 19 is located on the side wall of the flotation chamber 2. The lower edge of the water outlet pipe 19 is adjacent to the support plate 14.

[0019] Settling Chamber: The lower part of the settling chamber 3 is provided with a support leg 26. A drain pipe 20 is provided at the center of the bottom of the settling chamber 3. A drain valve 21 is provided on the drain pipe 20. The central vertical pipe 13 has a cylindrical upper part and a frustum-shaped lower part. The central vertical pipe 13 is concentrically arranged with the side wall of the settling chamber 3. The upper part of the central vertical pipe 13 is fixedly connected to the bottom of the vortex chamber 1. The electrocoagulation assembly 22 is located in the upper middle part of the settling chamber 3. The electrocoagulation assembly 22 includes an electrode group 1 2201, an electrode group 2202, a DC power supply 2203, and a fixing bracket 2204. The electrode group 1 2201 and the electrode group 2202 are annular tubular structures. 02. Electrode groups 1 and 2202 are arranged concentrically and alternately between the inner wall of the settling chamber 3 and the outer wall of the central vertical pipe 13. Electrode groups 1 and 2202 are concentrically arranged with the side wall of the settling chamber 3 and fixed to the side wall of the settling chamber 3 by a fixing bracket 2204. The DC power supply 2203 is connected to electrode groups 1 and 2202 respectively. The reflector 24 has a conical structure and is located directly below the central vertical pipe 13. It is fixed to the bottom of the settling chamber 3 by a support rod 12. The turbidity sensor 23 is located above electrode groups 1 and 2202 of the electrocoagulation component 22.

[0020] Control cabinet: The control cabinet 25 is connected to the turbidity sensor 23, the water isolation valve 11 and the water inlet valve 7.

[0021] The electrode group 2201 and electrode group 2202 of the electrocoagulation component 22 are titanium-based coated electrodes.

[0022] The DC power supply 2203 of the electrocoagulation component 22 adopts a pulse power supply with a periodic commutation mode.

[0023] The operation process of this utility model is as follows: (1) The control cabinet controls the water inlet valve to open, and the aquaculture sewage enters the vortex cylinder tangentially through the water inlet pipe to form a vortex. Large particles of waste are thrown against the cylinder wall under the action of centrifugal force and sink to the bottom of the vortex cylinder. The water after vortex separation and filtration overflows from the overflow pipe to the vortex chamber for temporary storage, to be processed in the next step. After a period of time, the sludge discharge valve is opened, and the settled feces and other sewage can be discharged through the sludge discharge pipe. (2) The turbidity sensor monitors the height of the suspended layer in real time and automatically adjusts the opening of the water-blocking valve in conjunction with the control cabinet to dynamically control the suspended layer to remain stable within a suitable height range; the water temporarily stored in the cyclone separation filter enters the central vertical pipe through the water-blocking valve and flows downward, and after being reflected by the conical reflector, it flows upward from between the inner wall of the sedimentation chamber and the outer wall of the central vertical pipe. This process performs vertical sedimentation on the water, removing small particulate waste and some suspended solids from the water; (3) When the water flows through the electrocoagulation component, the pulse power supply drives the titanium-based electrode to electrolyze and generate metal ions, which form flocs with pollutants. The tiny bubbles generated by electrocoagulation carry suspended solids to the surface; (4) The foam overflows the upper edge of the overflow cylinder and is discharged through the scum discharge pipe; the treated clean water flows out through the drain outlet on the overflow cylinder wall and is then discharged outside the device through the water outlet pipe. (5) The drain valve is opened periodically, and the fish feces and other waste deposited at the bottom of the sedimentation chamber are discharged through the drain pipe.

[0024] The above description is only a specific embodiment of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

Claims

1. An integrated electrocoagulation cyclone and vertical flow sedimentation device for recirculating aquaculture, comprising a cyclone chamber (1), an air flotation chamber (2), a sedimentation chamber (3), and a control cabinet (25), characterized in that: The swirl chamber (1) and settling chamber (3) are cylindrical on the side and conical at the bottom. The flotation chamber (2) is cylindrical. The swirl chamber (1), flotation chamber (2) and settling chamber (3) are arranged from top to bottom and are fixedly connected by flange (27). I. Cyclone Chamber (1) The cyclone chamber (1) is equipped with a cyclone cylinder (4), an inlet pipe (6), a slag discharge pipe (8), and a water-blocking valve (11). The cyclone cylinder (4) has a cylindrical sidewall and a conical bottom structure. The cyclone cylinder (4) is concentrically arranged with the sidewall of the cyclone chamber (1). The upper part of the cyclone cylinder (4) is fixedly connected to the sidewall of the cyclone chamber (1) through a connecting rod (10). An overflow pipe (5) is provided at the center of the top of the cyclone cylinder (4). The inlet pipe (6) is located on the upper part of the sidewall of the cyclone chamber (1) and passes through the cyclone chamber (1). The side wall of the cyclone chamber (1) is connected to the upper part of the side wall of the cyclone cylinder (4), and the outlet end of the water inlet pipe (6) is tangentially set to the side wall of the cyclone cylinder (4), thereby guiding the fluid to form a high-efficiency cyclone motion. The water inlet pipe (6) is equipped with a water inlet valve (7). The slag discharge pipe (8) is set at the lower part of the side wall of the cyclone chamber (1). The slag discharge pipe (8) passes through the side wall of the cyclone chamber (1) and is connected to the bottom of the cyclone cylinder (4). The slag discharge pipe (8) is equipped with a slag discharge valve (9). The water isolation valve (11) is set at the bottom center of the cyclone chamber (1). II. Air Flotation Chamber (2) The flotation chamber (2) is equipped with a support plate (14), an overflow cylinder (15), a stratification plate (16), a scum discharge pipe (18), and a water outlet pipe (19). The support plate (14) has a frustum-shaped structure, and its outer side is connected to the side wall of the flotation chamber (2). The overflow cylinder (15) has a frustum-shaped upper part and a cylindrical lower part, and is concentrically arranged with the side wall of the flotation chamber (2). The lower part of the overflow cylinder (15) is connected to the inner side of the support plate (14). The stratification plate (16) has a frustum-shaped structure and is arranged on the support plate (14). Directly above 14), the outer side of the layered plate (16) is connected to the side wall of the flotation chamber (2), and the inner side is connected to the wall of the overflow cylinder (15). Drainage outlets (17) are evenly distributed on the wall of the overflow cylinder (15). The drainage outlets (17) are located between the support plate (14) and the layered plate (16). The scum discharge pipe (18) is set on the side wall of the flotation chamber (2). The lower edge of the scum discharge pipe (18) is adjacent to the layered plate (16). The water outlet pipe (19) is set on the side wall of the flotation chamber (2). The lower edge of the water outlet pipe (19) is adjacent to the support plate (14). III. Settling Chamber (3) The settling chamber (3) is equipped with a central vertical pipe (13), an electrocoagulation assembly (22), a reflector plate (24), and a turbidity sensor (23). A support leg (26) is provided at the lower part of the settling chamber (3). A drain pipe (20) is located at the center of the bottom of the settling chamber (3), and a drain valve (21) is installed on the drain pipe (20). The central vertical pipe (13) has a cylindrical upper section and a frustum-shaped lower section. The central vertical pipe (13) and... The side walls of the settling chamber (3) are concentrically arranged, and the upper part of the central vertical pipe (13) is fixedly connected to the bottom of the vortex chamber (1). The electrocoagulation assembly (22) is located in the upper middle part of the settling chamber (3). The electrocoagulation assembly (22) includes electrode group one (2201), electrode group two (2202), DC power supply (2203) and fixed bracket (2204). The electrode group one (2201) and electrode group two (2202) are annular tubes. The structure consists of electrode group one (2201) and electrode group two (2202) arranged concentrically and alternately. Electrode group one (2201) and electrode group two (2202) are located between the inner wall of the settling chamber (3) and the outer wall of the central vertical pipe (13). Electrode group one (2201) and electrode group two (2202) are concentrically arranged with the side wall of the settling chamber (3) and fixed to the side wall of the settling chamber (3) by a fixing bracket (2204). The DC power supply... The source (2203) is connected to electrode group one (2201) and electrode group two (2202) respectively. The reflector (24) is a cone-shaped structure. The reflector (24) is located directly below the central vertical pipe (13) and is fixedly connected to the bottom of the settling chamber (3) by the support rod (12). The turbidity sensor (23) is located above electrode group one (2201) and electrode group two (2202) of the electrocoagulation component (22). IV. Control Cabinet (25) The control cabinet (25) is connected to the turbidity sensor (23), the water-blocking valve (11), and the water inlet valve (7).

2. The integrated electrocoagulation cyclone and vertical flow sedimentation device for recirculating aquaculture as described in claim 1, characterized in that: The electrode group one (2201) and electrode group two (2202) of the electrocoagulation component (22) are titanium-based coated electrodes.

3. The integrated electrocoagulation cyclone and vertical flow sedimentation device for recirculating aquaculture as described in claim 1, characterized in that: The DC power supply (2203) of the electrocoagulation component (22) adopts a pulse power supply with a periodic commutation mode.

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