Water flow adjusting and controlling device for circulating culture

Abstract

The utility model relates to the technical field of culture, in particular to a water flow regulation control device for circulating culture, which comprises a first-stage culture pond, a lower-stage culture pond, a tail-stage culture pond, a water flow control box, a water blocking bottom block, a rotating screw rod, a rotating button, a water blocking baffle, a water pressure gauge, a sewage treatment box and a return pipe. According to the utility model, the rotating button is rotated to drive the rotating screw rod below the rotating button to rotate, so that the angle of the water blocking plate in the water flow control box is adjusted, the water flow passing through the water flow control box is adjusted, and the water pressure gauge is used for monitoring the water pressure and displaying the real-time pressure passing through the water blocking plate in the use process; a user can control the rotary button according to the real-time pressure so as to control the water flow and stabilize the water pressure, and the device can flexibly supply water to the next-stage culture pond. And by arranging the sewage treatment tank and the return pipe, purified water treated by the sewage treatment tank can be introduced into the first-stage culture pond through the return pipe, so that water resources are recycled.

Description

Technical Field

[0001] The utility model relates to the technical field of aquaculture, and particularly relates to a water flow regulation and control device for circular aquaculture. Background Technique

[0002] At present, most aquaculture adopts pond aquaculture. The water surface is large and water quality control is difficult. Due to reasons such as the input of bait, the excrement of aquaculture objects, and the enrichment of various residues, the feed sinking to the bottom of the pond quickly rots and deteriorates, resulting in the deterioration of the water environment. Water quality needs to be updated. Flowing water is active and rich in oxygen, which is the best water body for aquaculture. Using a continuously flowing live fish pond can increase the aquaculture density and accelerate the growth rate. However, due to the need for the water body to flow continuously in live water aquaculture, it is easy to cause waste of water resources, and the water flow rate cannot be adjusted according to the actual aquaculture situation, resulting in waste of water resources during the aquaculture process. Therefore, a water flow regulation and control device for circular aquaculture is proposed for the above problems. Content of the Utility Model

[0003] The purpose of the utility model is to provide a water flow regulation and control device for circular aquaculture to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] A water flow regulation and control device for circular aquaculture, comprising: a primary aquaculture pond, a secondary aquaculture pond, a final aquaculture pond and a water flow control box. The primary aquaculture pond, the secondary aquaculture pond and the final aquaculture pond are arranged from high to low in sequence. The water flow control box is connected to adjacent two aquaculture ponds through a water delivery pipe. A water blocking bottom block is fixedly arranged at the bottom end of the inner cavity of the water flow control box. A rotating screw is arranged on the water blocking bottom block. One end of the rotating screw away from the water blocking bottom block extends out of the water flow control box and is provided with a rotating button. A water blocking baffle is attached to the outer wall of the rotating screw. A water pressure gauge is arranged on the upper surface of the water flow control box, and the lower part of the water pressure gauge extends into the interior of the water flow control box;

[0006] A sewage treatment box is arranged below the primary aquaculture pond. The sewage treatment box comprises a sewage filtration box, a nitrification reaction tank and a denitrification reaction tank. The sewage filtration box is connected to the final aquaculture pond, the nitrification reaction tank is connected to the sewage filtration box, and the denitrification reaction tank is connected to the nitrification reaction tank in sequence through a water delivery pipe. A reflux pipe is arranged at the water outlet of the denitrification reaction tank, and one end of the reflux pipe away from the sewage treatment box is arranged on the primary aquaculture pond.

[0007] As a preferred scheme, a first mesh belt grille and a second mesh belt are arranged in the sewage treatment box from right to left in sequence, and the mesh holes of the second mesh belt grille are smaller than those of the first mesh belt grille.

[0008] As a preferred solution, the nitrification reaction tank includes a first pH monitor and a first constant temperature heater. The first pH monitor is arranged on the inner wall of the nitrification reaction tank, and the first constant temperature heater is arranged at the bottom of the nitrification reaction tank.

[0009] As a preferred solution, the denitrification reaction tank includes a second pH monitor, a second constant temperature heater, an exhaust pipe and a liquid level gauge. The exhaust pipe, the liquid level gauge and the second pH monitor are arranged on the inner wall of the denitrification reaction tank from top to bottom in sequence, and the second constant temperature heater is arranged at the bottom of the denitrification reaction tank.

[0010] As a preferred solution, a one-way air valve is arranged on the exhaust pipe.

[0011] As a preferred solution, a sponge iron layer is arranged in the water delivery pipe between the nitrification reaction tank and the denitrification reaction tank.

[0012] As a preferred solution, a booster pump and a flow control valve are arranged on the reflux pipe, and the booster pump is arranged at the lower end of the flow control valve.

[0013] It can be seen from the technical solutions provided by the present invention as described above that a water flow adjustment and control device for circular aquaculture provided by the present invention has the following beneficial effects:

[0014] 1. By arranging a water flow control box between two adjacent aquaculture ponds, the present invention controls the water flow rate. By rotating the rotary button, the rotary screw below the rotary button makes a rotary motion, thereby adjusting the angle of the water blocking baffle in the water flow control box and adjusting the water flow rate passing through the water flow control box. The water pressure is monitored by a water pressure gauge and the real-time pressure passing through the water blocking baffle during use is displayed. The user can control the rotary button according to the real-time pressure to control the water flow rate and stabilize the water pressure. The device has a simple structure and can control the flow rate according to the actual situation, and can flexibly supply water to the next-level aquaculture pond;

[0015] 2. According to different water quality conditions required for aquaculture, the present invention sets a primary aquaculture pond, a lower-level aquaculture pond and a tail-level aquaculture pond. Then, a sewage treatment box is arranged behind the tail-level aquaculture pond. The clear water treated by the sewage treatment box is then refluxed to the primary aquaculture pond through the reflux pipe, and the nutrients are fully utilized during the process of water body circulation to prevent waste of nutrients;

[0016] 3. A sewage filtration box, a nitrification reaction tank and a denitrification reaction tank are arranged in sequence in the sewage treatment box. First, the sewage filtration box is used to filter suspended substances and feces, and then the biological denitrification method is used to remove nitrogen from the water body. The above water body purification method not only has thorough purification but also simple operation. Description of the Drawings

[0017] Figure 1Schematic diagram of the overall structure of a water flow regulation and control device for a cyclic aquaculture of the present utility model;

[0018] Figure 2 Schematic diagram of the cross-sectional structure of a water flow regulation and control device for a cyclic aquaculture of the present utility model;

[0019] Figure 3 Schematic diagram of the structure of a water flow regulation box of a water flow regulation and control device for a cyclic aquaculture of the present utility model

[0020] Figure 4 Schematic diagram of the structure of a sewage treatment tank of a water flow regulation and control device for a cyclic aquaculture of the present utility model.

[0021] In the figure: 1, primary aquaculture pond; 2, secondary aquaculture pond; 3, final aquaculture pond; 4, water flow control box; 41, water-blocking bottom block; 42, rotating screw; 43, rotating button; 44, water-blocking baffle; 45, water pressure gauge; 5, sewage treatment tank; 51, sewage filtration tank; 511, first mesh belt grille; 512, second mesh belt grille; 52, nitrification reaction tank; 521, first pH monitor; 522, first constant temperature heater; 53, denitrification reaction tank; 531, second pH monitor; 532, second constant temperature heater; 533, exhaust pipe; 534, check valve; 525, liquid level gauge; 6, return pipe; 61, booster pump; 62, flow control valve; 7, edge platform; 8, water delivery pipe; 9, spongy iron layer. Detailed implementation manners

[0022] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0023] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0024] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model.

[0025] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more, unless otherwise specifically defined.

[0026] To better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings of the specification and specific embodiments.

[0027] As Figures 1-4 shown, an embodiment of the present utility model provides a water flow regulation and control device for circular aquaculture, including: a primary aquaculture pond 1, a secondary aquaculture pond 2, a final aquaculture pond 3, and a water flow control box 4. The primary aquaculture pond 1, the secondary aquaculture pond 2, and the final aquaculture pond 3 are arranged in sequence from high to low. The water flow control box 4 is connected to adjacent two aquaculture ponds through a water delivery pipe 8. A water-blocking bottom block 41 is fixedly arranged at the bottom end of the inner cavity of the water flow control box 4. A rotating screw 42 is arranged on the water-blocking bottom block 41. One end of the rotating screw 42 away from the water-blocking bottom block 41 extends out of the water flow control box 4 and is provided with a rotating button 43. A water-blocking baffle 44 is attached to the outer wall of the rotating screw 42. A water pressure gauge 45 is arranged on the upper surface of the water flow control box 4, and the lower part of the water pressure gauge 45 extends into the interior of the water flow control box 4.

[0028] A sewage treatment box 5 is arranged below the primary aquaculture pond 1. The sewage treatment box 5 includes a sewage filtration box 51, a nitrification reaction tank 52, and a denitrification reaction tank 53. The sewage filtration box 51 and the final aquaculture pond 3, the nitrification reaction tank 52 and the sewage filtration box 51, and the denitrification reaction tank 53 and the nitrification reaction tank 52 are connected in sequence through a water delivery pipe 8. A reflux pipe 6 is arranged at the water outlet of the denitrification reaction tank 53, and one end of the reflux pipe 6 away from the sewage treatment box 5 is arranged on the primary aquaculture pond 1.

[0029] Among them, a primary aquaculture pond 1, secondary aquaculture ponds 2, and a terminal aquaculture pond 3 are set up. According to the actual aquaculture situation, multiple secondary aquaculture ponds 2 can be set up. According to the different water quality requirements of the aquaculture organisms, the aquaculture organisms with high water quality requirements are placed in the primary aquaculture pond 1, and the water quality requirements of the aquaculture organisms in the secondary aquaculture ponds 2 and the terminal aquaculture pond 3 decrease in turn. The water flow control box 4 is used to control the water flow size between adjacent aquaculture ponds. By rotating the rotary button 43 on the water flow control box 4, the rotary screw 42 below the rotary button 43 is driven to rotate, so that the water blocking baffle 44 attached to the outer wall of the rotary screw 42 rotates, and the angle of the water blocking baffle 44 in the water flow control box 4 is adjusted. When the water blocking baffle 44 is in a vertical state in the water flow control box 4, the water flow rate in the water flow control box 4 is the smallest. When the water blocking baffle 44 is in a horizontal state in the water flow control box 4, the water flow rate in the water flow control box 4 is the largest. A water pressure gauge 45 is set to monitor the water pressure and display the real-time pressure passing through the water blocking baffle during use. The user can control the rotary button 43 according to the real-time pressure to control the water flow size and stabilize the water pressure. The above device has a simple structure and can supply water to the next-level aquaculture pond flexibly according to the actual situation. The sewage treatment box 5 is used to treat the sewage discharged from the terminal aquaculture pond. The sewage passes through the sewage filtration box 51, nitrification reaction tank 52, and denitrification reaction tank 53 in turn. When passing through the sewage filtration box 51, larger impurities and feces in the sewage are filtered. The water after filtration enters the nitrification reaction tank 52 through the water delivery pipe 8. In the nitrification reaction tank 52, nitrification occurs through the action of nitrite bacteria and nitrate bacteria, oxidizing ammonia nitrogen into nitrite nitrogen and nitrate nitrogen. Then it flows into the denitrification reaction tank 53, where denitrification occurs through facultative denitrifying bacteria, reducing nitrite nitrogen and nitrate nitrogen into nitrogen gas and discharging it, thereby removing excess ammonia nitrogen in the water body and purifying the water body. The purified water is re-transported to the primary aquaculture pond 1 through the return pipe 6 to complete the recycling of the water body. At the same time, nutrients are fully utilized during the process of water body circulation to prevent nutrient waste.

[0030] As Figure 4 shown, a first mesh belt grille 511 and a second mesh belt 512 are sequentially arranged in the sewage treatment box 51 from right to left, and the mesh holes of the second mesh belt grille 512 are smaller than those of the first mesh belt grille 511.

[0031] Among them, since suspended solids and feces generally float horizontally, arranging the first mesh belt grille 511 and the second mesh belt grille 512 with gradually decreasing mesh holes in the horizontal direction can effectively block suspended solids and feces, causing the feces to precipitate at the bottom of the sewage treatment box 51.

[0032] As Figure 4As shown, the nitrification reaction tank 52 includes a first pH monitor 521 and a first constant temperature heater 522. The first pH monitor 521 is disposed on the inner wall of the nitrification reaction tank 52, and the first constant temperature heater 522 is disposed at the bottom of the nitrification reaction tank 52.

[0033] Among them, a first pH monitor 521 is arranged in the nitrification reaction tank 52 to monitor the pH value in the nitrification reaction tank. Since the pH value is 8.0 - 8.4 when the temperature is the same for nitrite bacteria and nitrate bacteria, and the nitrification rate is the fastest. Therefore, when the first pH monitor 521 detects that the alkalinity in the nitrification reaction tank 52 is insufficient, lime is added to maintain the pH value within 8.0 - 8.4. When it is necessary to reduce the nitrification rate, the pH value can be adjusted. The function of the first constant temperature heater 522 is to provide an appropriate temperature for nitrite bacteria and nitrate bacteria. The most suitable water temperature for nitrifying bacteria is 20°C - 35°C, and its activity drops sharply below 15°C. Therefore, the water temperature heated by the first constant temperature heater 522 should not be lower than 15°C.

[0034] As shown in Figure 4, the denitrification reaction tank 53 includes a second pH monitor 531, a second constant temperature heater 532, an exhaust pipe 533 and a liquid level gauge 535. The exhaust pipe 533, the liquid level gauge 535 and the second pH monitor 531 are arranged on the inner wall of the denitrification reaction tank 53 from top to bottom in sequence, and the second constant temperature heater 534 is arranged at the bottom of the denitrification reaction tank 53.

[0035] Among them, since the suitable pH value for facultative denitrifying bacteria is generally between 7.0 - 8.0, and the suitable temperature is generally between 20°C - 40°C. By using the second pH monitor 531 and the second constant temperature heater 532, the pH value and temperature suitable for the survival of facultative denitrifying bacteria can be maintained in the denitrification reaction tank 53, preventing the facultative denitrifying bacteria from inactivating and being unable to reduce nitrite nitrogen and nitrate nitrogen to nitrogen. After the facultative denitrifying bacteria reduce nitrite nitrogen and nitrate nitrogen to nitrogen, the nitrogen is discharged from the denitrification reaction tank 53 along the exhaust pipe 533. The liquid level gauge 535 can monitor the liquid level height in the denitrification reaction tank 53 to prevent the liquid level in the denitrification reaction tank 53 from being too high and causing the liquid to be discharged from the exhaust pipe 533.

[0036] As Figure 4 shown, a one - way air valve 534 is arranged on the exhaust pipe 533.

[0037] Among them, arranging a one - way air valve in the exhaust pipe 533 can enable nitrogen to be discharged unidirectionally outside the denitrification reaction tank 53, and air cannot enter the denitrification reaction tank 53 from the exhaust pipe 533.

[0038] As Figure 4 shown, a sponge iron layer 9 is arranged in the water delivery pipe 8 between the nitrification reaction tank 52 and the denitrification reaction tank 53.

[0039] Among them, since facultative denitrifying bacteria generally belong to anaerobic bacteria, the water flowing out of the nitrification reaction tank will undergo deoxidation treatment through the sponge iron layer 9. Since the main component of sponge iron is iron, its loose and porous internal structure has a surface area 50,000 - 100,000 times that of ordinary iron filings, which can cause the oxygen in the water to undergo a rapid and complete oxidation reaction with iron, reducing the oxygen content in the water body entering the denitrification reaction tank 53 and ensuring the survival and operation of facultative denitrifying bacteria.

[0040] Such as Figure 2 As shown, a booster pump 61 and a flow control valve 62 are provided on the return pipe 6, and the booster pump 61 is arranged at the lower end of the flow control valve 62.

[0041] Among them, a booster valve 61 is provided on the return pipe 6. The booster valve 61 can re-introduce the purified water body into the primary aquaculture pond 1, and the flow control valve 62 can control the water flow rate into the primary aquaculture pond 1.

[0042] The working principle of this embodiment: During the aquaculture process, the water in the primary aquaculture pond 1 flows into the secondary aquaculture pond 2, and the water in the secondary aquaculture pond 2 flows into the tertiary aquaculture pond 3. The water flow control box 4 is used to control the water flow size between adjacent aquaculture ponds. When it is necessary to control the water flow rate, by rotating the rotary button 43, the rotary screw 42 below the rotary button 43 is driven to rotate, so that the water blocking baffle 44 attached to the outer wall of the rotary screw 42 rotates, adjusting the angle of the water blocking baffle 44 in the water flow control box 4. Through the water pressure gauge 45, the water pressure in the water flow control box 4 can be monitored and the real-time pressure passing through the water blocking baffle can be displayed. The rotary button 43 can be controlled according to the real-time pressure to control the water flow size and stabilize the water pressure. The above device has a simple structure and can flexibly supply water to the next-level aquaculture pond according to the actual situation. At the same time, the nutrients not absorbed by the upper-level aquaculture pond can enter the next-level aquaculture pond, fully converting the nutrients in the water body. The sewage in the tertiary aquaculture pond 3 undergoes sewage treatment through the sewage treatment box 5. The sewage treatment box 5 first filters the sewage, filtering out larger impurities and feces in the sewage, and then uses the biological denitrification method to remove excessive ammonia nitrogen in the water body. The purified water after treatment is returned to the primary aquaculture pond 1 through the return pipe 6, achieving water flow circulation and not wasting water resources.

[0043] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water flow regulation and control device for circular aquaculture, comprising: The primary aquaculture pond (1), the secondary aquaculture pond (2), the tertiary aquaculture pond (3) and the water flow control box (4), characterized in that: the primary aquaculture pond (1), the secondary aquaculture pond (2) and the tertiary aquaculture pond (3) are arranged in sequence from high to low, the water flow control box (4) is connected to adjacent two aquaculture ponds through a water delivery pipe (8), a water blocking bottom block (41) is fixedly arranged at the bottom end of the inner cavity of the water flow control box (4), a rotating screw rod (42) is arranged on the water blocking bottom block (41), one end of the rotating screw rod (42) far away from the water blocking bottom block (41) extends out of the water flow control box (4) and is provided with a rotating button (43), a water blocking baffle (44) is attached to the outer wall of the rotating screw rod (42), a water pressure gauge (45) is arranged on the upper surface of the water flow control box (4), and the lower part of the water pressure gauge (45) extends into the interior of the water flow control box (4); A sewage treatment box (5) is arranged below the primary aquaculture pond (1), the sewage treatment box (5) includes a sewage filtration box (51), a nitrification reaction tank (52) and a denitrification reaction tank (53), the sewage filtration box (51) and the tertiary aquaculture pond (3), the nitrification reaction tank (52) and the sewage filtration box (51), and the denitrification reaction tank (53) and the nitrification reaction tank (52) are sequentially connected through a water delivery pipe (8), a return pipe (6) is arranged at the water outlet of the denitrification reaction tank (53), and one end of the return pipe (6) far away from the sewage treatment box (5) is arranged on the primary aquaculture pond (1).

2. The water flow regulation and control device for cyclic aquaculture according to claim 1, characterized in that: A first mesh belt grille (511) and a second mesh belt grille (512) are sequentially arranged in the sewage treatment box (5) from right to left, and the mesh holes of the second mesh belt grille (512) are smaller than those of the first mesh belt grille (511).

3. The water flow regulation and control device for cyclic aquaculture according to claim 2, characterized in that: The nitrification reaction tank (52) includes a first pH monitor (521) and a first constant temperature heater (522), the first pH monitor (521) is arranged on the inner wall of the nitrification reaction tank (52), and the first constant temperature heater (522) is arranged at the bottom of the nitrification reaction tank (52).

4. The water flow regulation and control device for cyclic aquaculture according to claim 3, characterized in that: The denitrification reaction tank (53) includes a second pH monitor (531), a second constant temperature heater (532), an exhaust pipe (533) and a liquid level gauge (535), the exhaust pipe (533), the liquid level gauge (535) and the second pH monitor (531) are sequentially arranged on the inner wall of the denitrification reaction tank (53) from top to bottom, and the second constant temperature heater (532) is arranged at the bottom of the denitrification reaction tank (53).

5. The water flow regulation and control device for cyclic aquaculture according to claim 4, wherein: A one-way air valve (534) is arranged on the exhaust pipe (533).

6. The water flow regulation and control device for cyclic aquaculture according to claim 1, characterized in that: A sponge iron layer (9) is arranged in the water delivery pipe (8) between the nitrification reaction tank (52) and the denitrification reaction tank (53).

7. The water flow regulation and control device for cyclic aquaculture according to claim 1, characterized in that: A booster pump (61) and a flow control valve (62) are arranged on the return pipe (6), and the booster pump (61) is arranged at the lower end of the flow control valve (62).

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