A type of aquaculture pond with automatic sewage discharge

Abstract

This utility model discloses an aquaculture pond capable of automatic sewage discharge. A main sewage discharge pipe is connected to the bottom of the pond's main discharge outlet. A vertically extending secondary sewage discharge pipe is connected to the main discharge pipe. An automatic control valve and a horizontal sewage discharge pipe are connected to opposite sides of the highest point of the secondary sewage discharge pipe. When the automatic control valve is open, its valve body extends into the horizontal sewage discharge pipe. The highest point of the secondary sewage discharge pipe is level with the lowest aquaculture water level line of the pond. The outlet end of the horizontal sewage discharge pipe is ultimately connected to the main discharge pipe. A manually operated normally closed valve is installed on the main discharge pipe between the inlet end of the secondary sewage discharge pipe and the outlet end of the horizontal sewage discharge pipe. The automatic control valve is connected to a time relay. A manually operated normally open valve is located in the middle of the secondary sewage discharge pipe. The time relay controls the start time and duration of the automatic control valve, allowing water in the pond to be automatically discharged through the open horizontal sewage discharge pipe, thus achieving automatic sewage discharge. Simultaneously, it ensures that the water level does not fall below the lowest aquaculture water level line.

Description

Technical Field

[0001] This utility model relates to an aquaculture pond that can achieve automatic sewage discharge, belonging to the field of aquaculture technology. Background Technology

[0002] Aquaculture ponds are generally designed with drain outlets for connecting to sewage pipes, requiring regular sewage discharge during the aquaculture process. Currently, many ponds still rely on manual valve opening for automatic sewage discharge. While this is manageable when the number of ponds is small, it becomes prohibitively time-consuming as the number of ponds increases. Furthermore, existing sewage discharge methods cannot guarantee a suitable water level in the ponds. If the water level is already low, discharging at the scheduled time can cause a significant drop in water level, potentially leading to the death of aquatic products. Furthermore, existing aquaculture ponds typically have a mesh screen installed at the sewage outlet. When the aquatic products being farmed are relatively small (such as river shrimp), the mesh of the mesh screen installed in the early stages is relatively dense, and some large particles of feed residue and feces cannot pass through the mesh screen, which can easily cause blockage of the sewage outlet. Moreover, as the aquatic products gradually increase in size, it is necessary to manually go down into the aquaculture pond to replace the mesh screen with a larger mesh, which is time-consuming and laborious, and workers are also prone to slipping if they are not careful. Utility Model Content

[0003] The purpose of this invention is to provide an aquaculture pond that can automatically discharge sewage. This pond can automatically discharge sewage at set times, and during the discharge process, it can maintain a suitable water level in the pond, prevent blockage of the discharge outlet, and eliminate the need to replace the screen.

[0004] The technical solution of this utility model is as follows: A breeding pond capable of automatic sewage discharge includes a breeding pond body, a main sewage discharge pipe connected to the bottom of the sewage outlet of the breeding pond body, a vertically extending secondary sewage discharge pipe connected to the main sewage discharge pipe, an automatic control valve and a horizontal sewage discharge pipe respectively connected to the two sides of the highest point of the secondary sewage discharge pipe, when the automatic control valve is opened, its valve body extends into the horizontal sewage discharge pipe, the highest point of the secondary sewage discharge pipe is level with the lowest breeding water level line of the breeding pond body, the outlet end of the horizontal sewage discharge pipe is finally connected to the main sewage discharge pipe, a manually normally closed valve is provided on the main sewage discharge pipe between the inlet end of the secondary sewage discharge pipe and the outlet end of the horizontal sewage discharge pipe, the automatic control valve is connected to a time relay, and a manually normally open valve is provided in the middle of the secondary sewage discharge pipe.

[0005] In the aforementioned aquaculture pond capable of automatic sewage discharge, the outlet end of the horizontal sewage pipe is connected to the middle and above of the collection pond, the sewage outlet at the bottom of the collection pond is connected to the main sewage pipe via a drain pipe, and a collection frame with a mesh structure is placed in the collection pond.

[0006] In the aforementioned aquaculture pond capable of automatic sewage discharge, a sewage pipe is vertically inserted into the sewage outlet of the aquaculture pond body. The top of the sewage pipe is higher than the aquaculture pond body, and several sewage openings are spaced apart along its height direction on the sewage pipe.

[0007] In the aforementioned aquaculture pond capable of automatic sewage discharge, sewage discharge openings are provided on both the front and rear sides of the sewage pipe, and the sewage discharge openings on the front and rear sides are staggered.

[0008] In the aforementioned aquaculture pond capable of automatic sewage discharge, the top outlet of the sewage discharge secondary pipe is connected to a four-way valve, with automatic control valves and horizontal sewage pipes distributed and connected at both horizontal ends of the four-way valve. An overflow bend is connected to the top of the four-way valve, with the highest point of the overflow bend being flush with the overflow water level line of the aquaculture pond body. The outlet end of the overflow bend is connected to the horizontal sewage pipe.

[0009] The beneficial effects of this utility model are as follows: Compared with the prior art, this utility model has the following advantages:

[0010] (1) The start time and start duration of the automatic control valve can be controlled by the time relay, so that the water in the aquaculture pond can be automatically discharged through the open horizontal sewage pipe, thus realizing automatic sewage discharge.

[0011] (2) During the automatic sewage discharge process, if the water level in the aquaculture pond drops to the minimum aquaculture water level line, the water cannot be automatically discharged through the horizontal sewage pipe to ensure that the water level in the aquaculture pond body will not be lower than the minimum aquaculture water level line.

[0012] (3) By setting up a sewage pipe with multiple sewage openings, sediments and suspended solids in the water can be discharged through sewage openings at different locations. This changes the traditional sewage discharge method where sediments and suspended solids are discharged through the bottom sewage outlet. The sewage pipe replaces the mesh, ensuring the smooth operation of the sewage discharge work.

[0013] (4) By setting an overflow bend, when the water level in the aquaculture pond is higher than the overflow level, the water can be automatically discharged through the overflow bend. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 for Figure 1 A structural diagram showing the configuration with a collection pool;

[0016] Figure 3 for Figure 2 Schematic diagram of the structure when an overflow bend is installed.

[0017] Attached reference numerals: 1-Aquaculture pond body, 2-Main drain pipe, 3-Secondary drain pipe, 4-Manual normally closed valve, 5-Automatic control valve, 6-Time relay, 7-Collection tank, 8-Drainage pipe, 9-Collection frame, 10-Drainage pipe, 11-Drainage opening, 12-Manual normally open valve, 13-Horizontal drain pipe, 14-Overflow bend. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0019] An embodiment of this utility model: an aquaculture pond capable of automatic sewage discharge, such as... Figure 1 As shown, the system includes a breeding pond body 1. A main sewage pipe 2 is connected to the bottom of the sewage outlet of the breeding pond body 1. A vertically extending secondary sewage pipe 3 is connected to the main sewage pipe 2. An automatic control valve 5 and a horizontal sewage pipe 13 are connected to the two sides of the highest point of the secondary sewage pipe 3, respectively. The automatic control valve 5 is normally in the open state, so that its valve body extends into the horizontal sewage pipe 13, thereby blocking the horizontal sewage pipe 13. The highest point of the secondary sewage pipe 3 is level with the lowest breeding water level line of the breeding pond body 1. The outlet end of the horizontal sewage pipe 13 is finally connected to the main sewage pipe 2. A manually closed valve 4 is installed on the main sewage pipe 2 between the inlet end of the secondary sewage pipe 3 and the outlet end of the horizontal sewage pipe 13. The automatic control valve 5 is connected to a time relay 6. A manually open valve 12 is installed in the middle of the secondary sewage pipe 3.

[0020] In the structure of this utility model, the automatic control valve 5 is normally in the open state. At this time, the horizontal sewage pipe 13 is blocked by the valve body of the automatic control valve 5, and the main sewage pipe 2 is also closed because it is equipped with a manually operated normally closed valve 4. Therefore, the water in the aquaculture pond 1 cannot be discharged through the main sewage pipe 2 and the secondary sewage pipe 3. The time relay 6 is used to set the closing time and closing duration of the automatic control valve 5. When the set sewage discharge time is reached, the time relay 6 controls the automatic control valve 5 to close. At this time, the valve body of the automatic control valve 5 retracts, causing the horizontal sewage pipe 13 to open. At this time, the water in the aquaculture pond 1 can enter the horizontal sewage pipe 13 through the secondary sewage pipe 3 under the action of gravity, and finally enter the main sewage pipe 2, thereby realizing automatic sewage discharge. After the set duration is reached, the time relay 6 controls the automatic control valve 5 to start again. At this time, the valve body of the automatic control valve 5 extends back into the horizontal sewage pipe 13, and the automatic sewage discharge ends.

[0021] Since the highest point of the secondary sewage pipe 3 is level with the lowest aquaculture water level of the aquaculture pond 1, during the automatic sewage discharge process, when the water level in the aquaculture pond 1 reaches the low aquaculture water level, the water in the aquaculture pond 1 can no longer be discharged through the horizontal sewage pipe 13, thus ensuring that the water level in the aquaculture pond 1 will not be lower than the lowest aquaculture water level.

[0022] When disinfection and cleaning of the entire aquaculture pond 1 are required, manually open the normally closed manual valve 4 to allow all water in the aquaculture pond 1 to be discharged through the main sewage pipe 2. Normally, during automatic sewage discharge, the normally closed manual valve 4 is in the closed state. When the automatic control valve 5 malfunctions and needs repair or replacement, close the normally open manual valve 12 in the middle of the secondary sewage pipe 3, keeping the secondary sewage pipe 3 closed, thus facilitating the repair or replacement of the automatic control valve 5.

[0023] The outlet end of the horizontal drain pipe 13 is connected to the upper part of the collection tank 7. The drain outlet at the bottom of the collection tank 7 is connected to the main drain pipe 2 via the drain pipe 8. A collection frame 9 with a mesh structure is placed in the collection tank 7. This structure is mainly for aquaculture ponds where the aquatic products are relatively small. For example, when the aquaculture pond is filled with very small juvenile shrimp, the juvenile shrimp may escape from the drain outlet of the aquaculture pond body 1. Therefore, a collection tank 7 and a collection frame 9 are set up. The water discharged through the horizontal drain pipe 13 falls into the collection frame 9. Juvenile shrimp and some shrimp shells with relatively hard shells are collected through the collection frame 9, while others are discharged through the drain pipe 8 after passing through the collection frame 9.

[0024] A drain pipe 10 is vertically inserted into the drain outlet of the aquaculture pond body 1. The top of the drain pipe 10 is higher than the aquaculture pond body 1. Several drain openings 11 are spaced apart along the height of the drain pipe 10. The drain openings are elongated and very small. By setting up the drain pipe 10 and multiple drain openings 11, sediments and suspended solids in the water of the aquaculture pond body 1 can be discharged through drain openings at different locations, while avoiding the discharge of aquatic products from the drain openings 11. This changes the traditional sewage discharge method where sediments and suspended solids are discharged through the bottom drain outlet. By using the drain pipe 10 instead of a screen, sediments and suspended solids are not concentrated and discharged from a single drain opening 11. Moreover, the drain openings are elongated and difficult to block, ensuring the smooth operation of sewage discharge.

[0025] The sewage pipe 10 has sewage openings 11 on both the front and rear sides. The sewage openings 11 on the front and rear sides are staggered to ensure the structural strength of the sewage pipe 10.

[0026] like Figure 3As shown, the top outlet of the secondary sewage pipe 3 is connected to a four-way valve. Automatic control valves 5 and horizontal sewage pipes 13 are connected to the horizontal ends of the four-way valve. An overflow bend 14 is connected to the top of the four-way valve. The highest point of the overflow bend 14 is flush with the overflow water level of the aquaculture tank 1. The outlet end of the overflow bend 14 is connected to the horizontal sewage pipe 13. When the automatic control valve 5 extends into the horizontal sewage pipe 13, the top of the secondary sewage pipe 3 and the overflow bend 14 are in communication. When the water level in the aquaculture tank 1 is higher than the overflow water level, the water in the aquaculture tank 1 can be drained through the overflow bend 14, preventing overflow of the aquaculture tank 1. When the horizontal sewage pipe 13 is opened, the water is drained through the horizontal sewage pipe 13.

Claims

1. An aquaculture pond capable of automatic sewage discharge, characterized in that: The system includes a breeding pond body (1), a main sewage pipe (2) connected to the bottom of the sewage outlet of the breeding pond body (1), a vertically extending secondary sewage pipe (3) connected to the main sewage pipe (2), an automatic control valve (5) and a horizontal sewage pipe (13) connected to the two sides of the highest point of the secondary sewage pipe (3), when the automatic control valve (5) is opened, its valve body extends into the horizontal sewage pipe (13), the highest point of the secondary sewage pipe (3) is level with the lowest breeding water level line of the breeding pond body (1), the outlet end of the horizontal sewage pipe (13) is finally connected to the main sewage pipe (2), a manually normally closed valve (4) is provided on the main sewage pipe (2) between the inlet end of the secondary sewage pipe (3) and the outlet end of the horizontal sewage pipe (13), the automatic control valve (5) is connected to the time relay (6), and a manually normally open valve (12) is provided in the middle of the secondary sewage pipe (3).

2. The aquaculture pond with automatic sewage discharge according to claim 1, characterized in that: The outlet end of the horizontal sewage pipe (13) is connected to the middle and above of the collection tank (7). The sewage outlet at the bottom of the collection tank (7) is connected to the main sewage pipe (2) via the drain pipe (8). A collection frame (9) with a mesh structure is placed in the collection tank (7).

3. The aquaculture pond with automatic sewage discharge according to claim 1, characterized in that: A sewage pipe (10) is vertically inserted into the sewage outlet of the aquaculture pond body (1). The top of the sewage pipe (10) is higher than the aquaculture pond body (1). Several sewage openings (11) are provided at intervals along the height direction of the sewage pipe (10).

4. The aquaculture pond with automatic sewage discharge according to claim 3, characterized in that: The sewage pipe (10) has sewage openings (11) on both the front and rear sides, and the sewage openings (11) on the front and rear sides are staggered.

5. The aquaculture pond with automatic sewage discharge according to claim 1, characterized in that: The top outlet of the sewage secondary pipe (3) is connected to a four-way valve. Automatic control valves (5) and horizontal sewage pipes (13) are connected to the two horizontal ends of the four-way valve. An overflow bend (14) is connected to the top of the four-way valve. The highest point of the overflow bend (14) is level with the overflow water level of the aquaculture pond body (1). The outlet end of the overflow bend (14) is connected to the horizontal sewage pipe (13).

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