Water resource purification device for freshwater aquaculture

Abstract

The invention provides a water resource purification device for freshwater aquaculture, and relates to the technical field of water resource purification, the water resource purification device comprises a conical funnel, and a water inlet pipe is mounted on the conical funnel in a penetrating manner. According to the water resource purification device for freshwater aquaculture provided by the invention, through the arrangement of the conical funnel, the water inlet pipe, the sewer pipe, the dirt accumulation tank, the water injection pipe, the filter screen, the water storage tank, the water spraying pipe, the plugging structure and the driving structure, water can enter the conical funnel to reach the dirt accumulation tank to filter suspended matters under the action of hydraulic pressure difference and air pressure difference; in addition, the amount of bubbles in the water is increased through the vortex, so that the water entering the water spraying pipe contains the bubbles, the water in the water spraying pipe can be extruded to the height higher than the liquid level of the culture pond, the water in the culture pond can form circulation, and the water quality of the culture pond is improved. Water in the culture pond is continuously filtered, purified and oxygenated, no additional power source is needed, and the applicability is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of water resource purification, and particularly to a water resource purification device for freshwater aquaculture. Background Art

[0002] Freshwater aquaculture refers to aquaculture activities carried out in inland waters (including ponds, reservoirs, lakes, rivers, and slightly saline water environments), covering the breeding and reproduction of various aquatic economic animals and aquatic economic plants. The main varieties of freshwater aquaculture include bulk freshwater fish such as black carp, grass carp, silver carp, bighead carp, common carp, crucian carp, and bream, as well as special freshwater fish such as catfish, longsnout catfish, yellow catfish, salmon trout, longsnout catfish, ricefield eel, mandarin fish, perch, snakehead, and tilapia. In addition, there are crustaceans and shellfish such as Macrobrachium rosenbergii, Chinese shrimp, Procambarus clarkii, whiteleg shrimp, and Chinese mitten crab.

[0003] During freshwater aquaculture, farmers will put in too much feed and fertilizer, and these nutrients that are not fully utilized by aquatic animals will deposit. In addition, the breeding density is too high, and the amount of biological metabolites and excreta increases greatly, exceeding the self-purification energy of the water body, resulting in a large amount of suspended matter. Excessive suspended matter will reduce the transparency of the water body, affect the intensity of light reaching the bottom of the water, thereby interfering with the photosynthesis of phytoplankton and reducing the dissolved oxygen content in the water. Excessive suspended matter will reduce the transparency of the water body, affect the intensity of light reaching the bottom of the water, thereby interfering with the photosynthesis of phytoplankton and reducing the dissolved oxygen content in the water. Suspended matter particles may block the gill holes of fish, causing physical damage, providing a living and hiding place for pathogenic microorganisms, increasing the sensitivity of fish to diseases. The deposition and decomposition activities of suspended matter in the water body lead to the enrichment of ammonia nitrogen, nitrate nitrogen, nitrite nitrogen, organic matter, and phosphorus in the aquaculture water body, causing damage to the gill bodies of fish, accumulation of harmful substances, and having harmful effects such as poisoning effects on the cultured fish in the water and environmental pollution pressure on the surrounding water, affecting the yield of the aquaculture pond. Therefore, it is necessary to purify the aquaculture water resources. Most of the current aquaculture water purification devices use the aeration and oxygenation method, injecting air into the aquaculture water body through an aerator and laying air pipes, etc., to increase the dissolved oxygen in the water body, and at the same time bringing harmful gases and suspended particulate matter to the water surface through air flotation. Its construction project is large and the economic cost is high. Summary of the Invention

[0004] Based on the technical problems existing in the background art, the present invention proposes a water resource purification device for freshwater aquaculture.

[0005] A water resource purification device for freshwater aquaculture proposed by the present invention includes a conical funnel. A water inlet pipe is installed through the conical funnel, and the extension line of the axis of the water inlet pipe does not intersect with the axis of the conical funnel. The bottom end of the conical funnel is communicated with a vertically arranged water outlet pipe. The bottom end of the water outlet pipe is communicated with a sewage accumulation tank. The bottom end of the sewage accumulation tank is communicated with a water injection pipe. The axis of the water injection pipe coincides with the axis of the water outlet pipe. The bottom end of the water outlet pipe and the top end of the water injection pipe are both located inside the sewage accumulation tank, and there is a gap between the bottom end of the water outlet pipe and the top end of the water injection pipe. A blocking structure is installed on the sewage accumulation tank, and the blocking structure can block the gap between the water outlet pipe and the water injection pipe. A driving structure is installed on the water outlet pipe, and the driving structure can drive the blocking structure to open the gap between the water outlet pipe and the water injection pipe. The top end of the water injection pipe is fixedly installed with a filter screen; The bottom end of the water injection pipe is communicated with a water storage tank. One side of the water storage tank is communicated with a water spraying pipe, and the top opening of the water spraying pipe is higher than the water inlet of the water inlet pipe.

[0006] Preferably, the blocking structure includes a conversion box, a swing rod and a blocking plate; the conversion box is communicated with the bottom end of the water outlet pipe, the top end of the water injection pipe is communicated with the bottom end of the conversion box, a slag outlet is opened on the outer periphery of the conversion box, the top end of the swing rod is rotatably installed on the inner wall of the sewage accumulation tank through a rotating shaft, a torsion spring is sleeved on the rotating shaft of the swing rod, the blocking plate is fixedly connected to the bottom end of the swing rod, and the blocking plate can block the slag outlet on the outer periphery of the conversion box.

[0007] Preferably, the top surface of the filter screen is a conical surface, and the tip of the filter screen faces upward.

[0008] Preferably, the inner wall of the bottom of the conversion box is a conical surface continuous with the filter screen.

[0009] Preferably, the driving structure includes a cross, an air inlet pipe, a fan blade, a convex block, a driving rod, an outer cylinder and a return spring; the cross is fixedly installed on the inner wall of the water outlet pipe, the air inlet pipe is rotatably installed on the cross, the axis of the cross coincides with the axis of the water outlet pipe, the fan blade is fixedly installed at the top end of the air inlet pipe, the convex block is fixedly installed on the outer periphery of the air inlet pipe, a driving groove is opened in the cross and is rotationally matched with the convex block, one end of the driving rod penetrates through the water outlet pipe, the cross and extends into the driving groove, one end of the driving rod can be slidably matched with the surface of the convex block, and the other end of the driving rod abuts against the swing rod; The outer cylinder is fixedly installed on the outer wall of the water outlet pipe, the driving rod penetrates through the outer cylinder, a convex platform is circumferentially connected to the outer periphery of the driving rod, the convex platform is located inside the outer cylinder, and the two ends of the return spring respectively abut against the convex platform and the inner wall of the outer cylinder.

[0010] Preferably, a cleaning guide piece is fixedly connected to the air inlet pipe. The cleaning guide piece can scrape on the top conical surface of the filter screen, and the extension line of the length of the cleaning guide piece does not intersect with the axis of the air inlet pipe.

[0011] Preferably, the bottom end of the water injection pipe is communicated with the top of the water storage tank, and the water inlet end of the water spraying pipe is lower than the bottom end of the water injection pipe.

[0012] Preferably, the bottom end of the air inlet pipe penetrates through the filter screen and is connected to the auger blade, and the top end of the air inlet pipe extends into the conical funnel.

[0013] The water resource purification device for freshwater aquaculture proposed by the present invention has the following beneficial effects: By setting the conical funnel, water inlet pipe, sewer pipe, dirt accumulation tank, water injection pipe, filter screen, water storage tank, water spraying pipe, blocking structure and driving structure, it can utilize the action of hydraulic pressure difference and air pressure difference to make water enter the conical funnel and reach the dirt accumulation tank for filtering treatment of suspended substances, filter out the suspended substances in the water, ensure the water quality. In addition, by increasing the amount of bubbles in the water through the vortex, the water entering the water spraying pipe contains bubbles, so that the water in the water spraying pipe can be extruded to a height higher than the liquid level of the aquaculture pond, enabling the water in the aquaculture pond to form a cycle, continuously filtering and purifying the water in the aquaculture pond and performing oxygenation treatment, without the need for an additional power source, and having stronger applicability. Description of the Drawings

[0014] Figure 1 is the overall structural schematic diagram of a water resource purification device for freshwater aquaculture proposed by the present invention; Figure 2 is the structural sectional view of a water resource purification device for freshwater aquaculture proposed by the present invention; Figure 3 is the enlarged partial sectional view inside the dirt accumulation tank of a water resource purification device for freshwater aquaculture proposed by the present invention; Figure 4 is the top view structural schematic diagram of the air inlet pipe, convex block and cleaning guide piece in a water resource purification device for freshwater aquaculture proposed by the present invention; Figure 5 is the structural schematic diagram of the swing rod and the blocking plate in a water resource purification device for freshwater aquaculture proposed by the present invention.

[0015] In the figure: 1, conical funnel; 2, water inlet pipe; 3, sewer pipe; 4, dirt accumulation tank; 5, water injection pipe; 6, filter screen; 7, water storage tank; 8, water spraying pipe; 9, conversion box; 10, swing rod; 11, blocking plate; 12, cross; 13, air inlet pipe; 14, fan blade; 15, convex block; 16, driving rod; 17, outer cylinder; 18, return spring; 19, cleaning guide piece; 20, auger blade. Detailed Embodiments

[0016] Reference Figures 1 - 5 In view of this, the present invention provides a water resource purification device for freshwater aquaculture, which includes a conical funnel 1. A water inlet pipe 2 is installed through the conical funnel 1. The conical funnel 1 is placed in water, and the extension line of the axis of the water inlet pipe 2 does not intersect with the axis of the conical funnel 1, so that the water inlet of the water inlet pipe 2 is immersed in the aquaculture pond. Water enters the conical funnel 1 from the water inlet pipe 2. After the water enters the conical funnel 1, the water flows in a spiral along the conical surface in the conical funnel 1 to form a vortex. The bottom end of the conical funnel 1 is connected to a vertically arranged down pipe 3. The water after forming the vortex enters the down pipe 3. The water spirals downward in the down pipe 3, and air will be sucked into the center of the vortex, so that the air dissolves in the water to form bubbles in the water. The bottom end of the down pipe 3 is connected to a dirt accumulation box 4. The bottom end of the dirt accumulation box 4 is connected to a water injection pipe 5. The axis of the water injection pipe 5 coincides with the axis of the down pipe 3. The bottom end of the down pipe 3 and the top end of the water injection pipe 5 are both located in the dirt accumulation box 4. There is a gap between the bottom end of the down pipe 3 and the top end of the water injection pipe 5. A sealing structure is installed on the dirt accumulation box 4, and the sealing structure can seal the gap between the down pipe 3 and the water injection pipe 5. A driving structure is installed on the down pipe 3, and the driving structure can drive the sealing structure to open the gap between the down pipe 3 and the water injection pipe 5. The top end of the water injection pipe 5 is fixedly installed with a filter screen 6. After the water reaches the dirt accumulation box 4, the suspended matter in the water is intercepted and filtered out by the filter screen 6. The water passes through the filter holes of the filter screen 6. The driving structure works to open the gap between the down pipe 3 and the water injection pipe 5. The intercepted suspended matter enters the dirt accumulation box 4, reducing the accumulation of suspended matter on the filter screen 6 and reducing the situation of the filter screen 6 being blocked, ensuring the smooth flow of water, facilitating the filtration of suspended matter in the water, and being used to purify the aquaculture water. In the normal state, the gap between the down pipe 3 and the water injection pipe 5 is blocked by the sealing structure to ensure that the water passes through the filter screen 6 and reaches the water injection pipe 5.

[0017] As Figure 1 shown in Figure 2 and

[0018] The bottom end of the water injection pipe 5 is connected to a water storage tank 7. One side of the water storage tank 7 is connected to a water spray pipe 8. The top opening of the water spray pipe 8 is higher than the water inlet of the water inlet pipe 2. The filtered water mixed with bubbles enters the water injection pipe 5. The water entering the water injection pipe 5 then flows into the water storage tank 7. After the water reaches the water storage tank 7, the water level overflows the water inlet end of the water spray pipe 8. Under the action of air pressure, and since the water entering the water storage tank 7 is mixed with bubbles, the density of the water mixed with bubbles is less than that of ordinary water, so that the water mixed with bubbles is squeezed into the water spray pipe 8 by the air pressure and sprayed out from the top opening of the water spray pipe 8. The water mixed with air moves in the water spray pipe 8, so that the air and water are fully mixed, increasing the oxygen content in the water. In addition, when the water in the water spray pipe 8 is sprayed out, it is in full contact with the air, and the water falls back into the aquaculture pond again, making the water full of oxygen.During actual use, the entire device needs to be immersed in water. It is necessary to ensure that the top opening of the conical funnel 1 is not immersed in the breeding pond. In addition, the water inlet of the water inlet pipe 2 needs to be immersed in water. When needed, water can be injected into the conical funnel 1 through the water inlet pipe 2 by a water pump. In addition, the top water outlet of the water spray pipe 8 needs to be higher than the liquid level of the breeding pond. Since the water reaching the water spray pipe 8 is mixed with air bubbles, the overall density of the water is relatively small, and under the action of air pressure, the water in the water spray pipe 8 can be transported to a position higher than the liquid level of the breeding pond.

[0019] As Figure 2 , Figure 3 and Figure 5 shown in

[0020] As Figure 2 and Figure 3 shown in

[0021] As Figure 2 , Figure 3 and Figure 4As shown in the figure, the drive structure includes a cross 12, an air inlet pipe 13, a fan blade 14, a bump 15, a drive rod 16, an outer cylinder 17 and a return spring 18; the cross 12 is fixedly installed on the inner wall of the sewer pipe 3, the air inlet pipe 13 is rotatably installed on the cross 12, the axis of the cross 12 coincides with the axis of the sewer pipe 3, the fan blade 14 is fixedly installed at the top end of the air inlet pipe 13, the bump 15 is fixedly installed on the outer periphery of the air inlet pipe 13, a drive groove for rotational cooperation with the bump 15 is provided in the cross 12, one end of the drive rod 16 penetrates through the sewer pipe 3, the cross 12 and extends into the drive groove, one end of the drive rod 16 can slidably cooperate with the surface of the bump 15, and the other end of the drive rod 16 abuts against the swing rod 10; after water enters the sewer pipe 3, the flowing water will drive the fan blade 14 to rotate, the fan blade 14 drives the air inlet pipe 13 to rotate synchronously, the rotating air inlet pipe 13 drives the bump 15 to rotate synchronously, during the rotation of the rotating bump 15, the inclined surface of the bump 15 slidably cooperates with the end of the drive rod 16, so that the drive rod 16 slides horizontally, so that the other end of the drive rod 16 pushes the swing rod 10 and the plugging plate 11 to rotate synchronously, so that the plugging plate 11 opens the slag outlet on the outer periphery of the conversion box 9, facilitating the discharge of the intercepted suspended matter and reducing the blockage caused by the accumulation of suspended matter.

[0022] As Figure 2 and Figure 3 shown, the outer cylinder 17 is fixedly installed on the outer wall of the sewer pipe 3, the drive rod 16 penetrates through the outer cylinder 17, a boss is circumferentially connected to the outer periphery of the drive rod 16, the boss is located inside the outer cylinder 17, and the two ends of the return spring 18 respectively abut against the boss and the inner wall of the outer cylinder 17. Due to the rebounding effect of the return spring 18, the boss and the drive rod 16 slide back to their original positions, thereby reducing the pushing force on the swing rod 10 and facilitating the plugging plate 11 to block the slag outlet on the outer periphery of the conversion box 9.

[0023] As Figure 2 , Figure 3 and Figure 4 shown, a cleaning guide piece 19 is fixedly connected to the bottom end of the air inlet pipe 13. The cleaning guide piece 19 can scrape on the top conical surface of the filter screen 6. The extension line of the length of the cleaning guide piece 19 does not intersect with the axis of the air inlet pipe 13. During the rotation of the air inlet pipe 13, the air inlet pipe 13 drives the cleaning guide piece 19 to rotate. When the cleaning guide piece 19 rotates, it will scrape the suspended matter on the filter screen 6 to ensure the cleanliness of the filter screen 6 and the smoothness of the filtered water. In addition, due to the angle design of the cleaning guide piece 19, the suspended matter will move around along the length direction of the cleaning guide piece 19, transporting the suspended matter away from the filter screen 6 and reducing the blockage situation.

[0024] As Figure 2As shown in the figure, the bottom end of the water injection pipe 5 is communicated with the top of the water storage tank 7. The water inlet end of the water spray pipe 8 is lower than the bottom end of the water injection pipe 5. When the water in the water injection pipe 5 flows into the water storage tank 7, the air bubbles mixed in the water and the air bubbles generated when the water flows into the water in the water storage tank 7 cause the water to overflow the water inlet end of the water spray pipe 8, so that the water and the air bubbles enter the water spray pipe 8 together, making the density of the water in the water spray pipe 8 lower. Under the action of hydraulic pressure and air pressure, the water liquid in the water spray pipe 8 can be transported to a higher position.

[0025] As Figure 1 , Figure 2 and Figure 3 shown in the figure, the bottom end of the air inlet pipe 13 penetrates through the filter screen 6 and is connected to the auger blade 20. The top end of the air inlet pipe 13 extends into the conical funnel 1. A one-way valve is installed in the air inlet pipe 13, so that the gas can only be sucked from top to bottom. In actual situations, when the water passes through the filtration of the filter screen 6, the air bubbles sucked in by the vortex from above will disappear to a certain extent. When the water passes through the filter screen 6 and reaches the water injection pipe 5, due to the decrease in the number of air bubbles, the rotation of the air inlet pipe 13 drives the auger blade 20 to rotate, and the auger blade 20 drives the water liquid in the water injection pipe 5 to rotate spirally and form a vortex. The formed vortex sucks in gas through the air inlet pipe 13 to form air bubbles in the water, increasing the number of air bubbles in the water, so that the water can be sprayed to a higher height in the water spray pipe 8, completing the filtration, purification and oxygenation of the aquaculture water. Its structure is simple and the operation is convenient.

[0026] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A water resource purification device for freshwater aquaculture, characterized in that: The conical funnel (1) comprises a water inlet pipe (2) which is installed through the conical funnel (1), the extended axis of the water inlet pipe (2) does not intersect with the axis of the conical funnel (1), the bottom end of the conical funnel (1) is connected to a vertically arranged downpipe (3), the bottom end of the downpipe (3) is connected to a dirt storage box (4), the bottom end of the dirt storage box (4) is connected to a water injection pipe (5), the axis of the water injection pipe (5) coincides with the axis of the downpipe (3), and the bottom end of the downpipe (3) is connected to the injection pipe (5). The top ends of the water pipes (5) are located in the dirt storage box (4); there is a gap between the bottom end of the downpipe (3) and the top end of the water injection pipe (5); a blocking structure is installed on the dirt storage box (4); the blocking structure is capable of blocking the gap between the downpipe (3) and the water injection pipe (5); a driving structure is installed on the downpipe (3); the driving structure is capable of driving the blocking structure to open the gap between the downpipe (3) and the water injection pipe (5); a filter screen (6) is fixedly installed on the top end of the water injection pipe (5); The bottom end of the water injection pipe (5) is connected to a water storage tank (7), and one side of the water storage tank (7) is connected to a water spray pipe (8), and the top opening of the water spray pipe (8) is higher than the water inlet of the water inlet pipe (2).

2. A water resource purification device for freshwater aquaculture according to claim 1, characterized in that: The blocking structure comprises a conversion box (9), a swing rod (10) and a blocking plate (11); the conversion box (9) is connected to the bottom end of the downpipe (3), the top end of the water injection pipe (5) is connected to the bottom end of the conversion box (9), a slag outlet is provided on the periphery of the conversion box (9), the top end of the swing rod (10) is rotatably mounted on the inner wall of the dirt storage box (4) via a rotating shaft, a torsion spring is mounted on the rotating shaft of the swing rod (10), and the blocking plate (11) is fixedly connected to the bottom end of the swing rod (10), and the blocking plate (11) can block the slag outlet on the periphery of the conversion box (9).

3. A water resource purification device for freshwater aquaculture according to claim 2, characterized in that: The top surface of the filter screen (6) is a conical surface, and the tip of the filter screen (6) is arranged to face upward.

4. A water resource purification device for freshwater aquaculture according to claim 3, characterized in that: The bottom inner wall of the conversion box (9) is a conical surface that is continuous with the filter screen (6).

5. A water resource purification device for freshwater aquaculture according to claim 4, characterized in that: The driving structure comprises a cross (12), an air intake pipe (13), a fan blade (14), a bump (15), a driving rod (16), an outer tube (17) and a return spring (18); the cross (12) is fixedly mounted on the inner wall of the down pipe (3); the air intake pipe (13) is rotatably mounted on the cross (12); the axis of the cross (12) coincides with the axis of the down pipe (3); the fan blade (14) is fixedly mounted on the top of the air intake pipe (13); the bump (15) is fixedly mounted on the outer periphery of the air intake pipe (13); a driving groove rotatably matched with the bump (15) is provided in the cross (12); one end of the driving rod (16) passes through the down pipe (3) and the cross (12) and extends into the driving groove; one end of the driving rod (16) can be slidably matched with the surface of the bump (15); the other end of the driving rod (16) abuts against the swing rod (10); The outer cylinder (17) is fixedly mounted on the outer wall of the downpipe (3); the driving rod (16) passes through the outer cylinder (17); a boss is circumferentially connected to the outer periphery of the driving rod (16); the boss is located inside the outer cylinder (17); and two ends of the return spring (18) respectively abut against the boss and the inner wall of the outer cylinder (17).

6. A water resource purification device for freshwater aquaculture according to claim 5, characterized in that: A cleaning guide blade (19) is fixedly connected to the air intake pipe (13), and the cleaning guide blade (19) is capable of scraping the top conical surface of the filter screen (6). The length extension line of the cleaning guide blade (19) does not intersect the axis of the air intake pipe (13).

7. A water resource purification device for freshwater aquaculture according to claim 1, characterized in that: The bottom end of the water injection pipe (5) is in communication with the top of the water storage tank (7), and the water inlet end of the water spray pipe (8) is lower than the bottom end of the water injection pipe (5).

8. The water resource purification device for freshwater aquaculture according to claim 5, characterized in that: The bottom end of the air intake pipe (13) passes through the filter screen (6) and is connected to the auger blade (20), and the top end of the air intake pipe (13) extends into the conical funnel (1).

Images