Automatic water PH value adjusting device with self-stirring function

Abstract

The utility model discloses an automatic water PH value adjusting device with a self-stirring function. An acid water tank and an alkaline water tank are arranged on the two sides of a culture pond; the acid water pump is communicated with the culture pond through a left discharge pipe on the acid water tank; the alkaline water pump is communicated with the culture pond on the upper side of the alkaline water tank through a right discharge pipe; the lower probe is arranged at the top of a floor drain filter at the bottom of the culture pond; the upper probe and the lower probe are connected with the controller through signal lines; the controller is connected with the control valve, the acid water pump and the alkali water pump through signal lines; the bottom of the culture pond is connected with a control valve inlet through a straight pipe, a control valve left outlet is communicated with an acid water tank through a left elbow, and a control valve right outlet is communicated with an alkaline water tank through a right elbow. A culture water backflow structure is adopted, a sewage pump is omitted, and the anti-blocking effect is good; the water quality sensor has the advantages of good self-stirring effect, fast uniform diffusion of acid / alkaline water, few water quality sensor probes, small interference, more sensitive controller, higher acid / alkaline water dosage feeding precision and less residual quantity.

Description

Technical Field

[0001] This utility model belongs to the field of water quality stability control technology, and in particular relates to the technical field of automatic adjustment of water pH value. Background Technology

[0002] Water is the living environment of fish, and its pH level is a key indicator of pond water quality, directly or indirectly affecting fish growth, development, reproduction, and disease. Fish thrive best in neutral or slightly alkaline water, with a pH of 6.5-8.5. A pH of 6-9 is considered safe. A pH below 6 or above 9 will negatively impact fish. pH is a comprehensive indicator of aquaculture water quality. The normal daily pH range in ponds is 1-2. Excessively high, low, or drastic pH fluctuations will affect the growth of aquatic organisms. During fish farming, excessively high or low pH levels can alter the concentration of certain chemicals in the water, potentially even converting them into toxic substances. This is detrimental to fish growth and plankton reproduction, inhibits photosynthesis, affects dissolved oxygen levels, and hinders fish respiration.

[0003] Because different fish species have different pH requirements, the water cannot be uniformly adjusted to neutral. To control the pH level and maintain water stability, artificial adjustments are necessary to ensure an optimized aquaculture environment and the healthy growth of aquatic products.

[0004] Currently, automatic pH adjustment devices are commonly used for manual water body pH regulation. These devices typically include: a PLC control system, control valves, an acid storage tank, an alkali storage tank, and a water quality sensor (built into the aquaculture pond). Based on the data monitored by the water quality sensor, the PLC control system activates the corresponding adjustment equipment, which in turn activates the control valves to inject acid or alkali solutions from the acid or alkali storage tanks into the aquaculture pond to neutralize the pH and maintain the water quality within a suitable range.

[0005] However, the automatic pH adjustment device involves issues of uniformity and diffusion time of the injected acid or alkali solution in the aquaculture pond. These issues will lead to inconsistent data collected by water quality sensors at different locations, affecting the information processing of the PLC control system. This will cause the PLC control system to be unable to accurately control the dosage of acid or alkali solution, affecting the accurate adjustment of the pH value. It often requires multiple adjustments to adjust the pH value to the correct level. It is time-consuming, energy-intensive, and requires a large amount of acid or alkali solution injected. A large amount of acid or alkali solution injected means a high residual amount, which will directly affect the health of the fish. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a compact, stable, and self-stirring automatic pH adjustment device for water.

[0007] The technical solution of this utility model is: an automatic pH adjustment device for water with self-stirring function, comprising: an acid water pump, a left drain pipe, an upper probe, a lower probe, a right drain pipe, an alkaline water pump, an alkaline water tank, an aquaculture pond, a floor drain filter, an acid water tank, a control valve, a controller, and related connecting water pipes: a straight pipe, a left-bend pipe, and a right-bend pipe. The acid water tank is located on the left side of the aquaculture pond and is square in shape. The acid water pump is located on the upper right side of the acid water tank, with its inlet below the waterline and its outlet passing through the left drain pipe, extending from the upper left side of the aquaculture pond to the lower left side, connecting to the aquaculture pond. The alkaline water tank is located on the right side of the aquaculture pond and is square in shape. The tank is square-shaped. The alkaline water pump is located on the upper left side of the alkaline water tank, with its inlet below the waterline. The outlet passes through the upper right side of the aquaculture tank via a right-hand drain pipe, extending into the lower right side and connecting to the aquaculture tank. The upper probe is located on the upper side of the inner wall of the aquaculture tank below the waterline, and the lower probe is located on top of the drain filter at the center of the bottom of the aquaculture tank. The upper and lower probes are connected to the controller via signal lines. The controller is connected to the control valve, acid water pump, and alkaline water pump via signal lines. The bottom of the aquaculture tank is connected to the control valve inlet via a straight pipe. The left outlet of the control valve is connected to the bottom of the acid water tank via a left-hand bend, and the right outlet of the control valve is connected to the bottom of the alkaline water tank via a right-hand bend.

[0008] The left and right pipes are curved pipes of the same size, arranged in a counter-clockwise left-hand rotation with an axisymmetric arrangement. The pipe outlets are close to the inner wall of the aquaculture pond, and the circular structure of the aquaculture pond acts as a counter-clockwise left-hand drainage plate. If this invention is used in the Southern Hemisphere, the left and right pipes are changed to an axisymmetric clockwise right-hand rotation, and the circular structure of the aquaculture pond acts as a clockwise right-hand drainage plate.

[0009] The aquaculture pond is a cylindrical cone-bottomed water tank.

[0010] The drain filter includes: rattan cotton, wool felt, mesh plate, and drain shell. The drain shell has a conical funnel structure and is located at the center of the bottom of the aquaculture pond, with a straight pipe connected to the bottom. The rattan cotton is above the wool felt, and both are located inside the drain shell. The mesh plate has a disc structure and is located below the wool felt and at the top of the conical drain shell.

[0011] The control valve is a three-position three-way solenoid valve, including: an electromagnet, a valve body, a return spring, and a valve core. The electromagnet and the return spring are located on the left and right sides of the valve body. The inlet of the control valve is connected to the bottom of the floor drain filter via a straight pipe. The left outlet of the control valve is connected to the bottom of the acid water tank via a left bend pipe. The right outlet of the control valve is connected to the bottom of the alkaline water tank via a right bend pipe. When starting, the controller controls the valve core to slide left and right. When closing, the return spring pushes the valve core back to the middle position.

[0012] The acid water tank contains acidic filter media to acidify the filtered water input through the left-hand bend pipe.

[0013] The alkaline water tank contains alkaline filter media to alkalize the filtered water that enters through the right-hand bend pipe.

[0014] The working principle of this utility model is as follows:

[0015] When the water in the aquaculture pond is alkaline, the upper and lower probes send signals to the controller. The controller then activates the electromagnet on the left side of the control valve and the acid water pump. The valve core moves to the left, opening the control valve. The acid water pump connects to the aquaculture pond through the left drain pipe, injecting and pressurizing water from the acid water tank into the aquaculture pond. During this process, the water level in the acid water tank drops, while the water level in the aquaculture pond rises, creating a pressure difference. The aquaculture water in the pond, after being filtered by the floor drain filter, is injected into the acid water tank through the left-bend pipe, completing the water circulation. As the aquaculture water flows from the floor drain filter to the acid water tank, a counter-clockwise left-handed vortex is generated. The effect of the drainage plate on the inner wall of the aquaculture pond also causes the acidic water injected through the left drain pipe to rotate counter-clockwise. The overlap of these two factors increases the counter-clockwise left-handed flow rate of the water, improves the stirring effect, and accelerates the uniform diffusion speed of the acid water. Based on the data collected by the upper and lower probes, the controller determines whether the acid dosage is sufficient and promptly shuts off the acid pump and the electromagnet on the left side of the control valve. The valve core is placed in the neutral position under the push of the reset spring, the control valve is closed, and the supply of acid water is stopped. However, under the action of the left inertial force of the water body, it continues to rotate counterclockwise to promote the rapid and uniform diffusion of acid water.

[0016] When the water in the aquaculture pond is acidic, the upper and lower probes send signals to the controller. The controller then activates the electromagnet on the right side of the control valve and the alkaline water pump. The valve core moves to the right, opening the control valve. The alkaline water pump connects to the aquaculture pond through the right-hand drain pipe, injecting and pressurizing water from the alkaline water tank into the pond. During this process, the water level in the alkaline water tank drops, while the water level in the aquaculture pond rises, creating a pressure difference. The aquaculture water in the pond, after being filtered by a floor drain filter, flows into the alkaline water tank through a bend pipe, completing the water circulation. As the aquaculture water flows from the floor drain filter to the alkaline water tank, a counter-clockwise left-handed vortex is generated. The effect of the drainage plate on the inner wall of the aquaculture pond also causes the alkaline water injected through the right-hand drain pipe to rotate counter-clockwise to the left. The overlap of these two factors increases the counter-clockwise left-handed flow rate of the water, improves the stirring effect, and accelerates the uniform diffusion speed of the alkaline water. Based on the data collected by the upper and lower probes, the controller determines whether the alkali dosage is sufficient and promptly shuts off the alkali pump and the control valve solenoid. The valve core is placed in the neutral position under the push of the reset spring, the control valve is closed, and the supply of alkali stops. However, under the action of the left inertial force of the water body, it continues to rotate counterclockwise to promote the rapid and uniform diffusion of alkali.

[0017] Compared with the existing technology, the present invention has the following advantages:

[0018] 1. This utility model utilizes the pressure difference generated by the height difference of the liquid level to allow the aquaculture water in the aquaculture pond to be backflowed into the acid water tank or alkaline water tank through a floor drain filter, eliminating the need for a sewage pump and solving the problem of easy clogging of the sewage pump.

[0019] 2. This utility model utilizes pipes to boost the vortex, which improves the self-stirring effect and accelerates the uniform diffusion of acid / alkali water.

[0020] 3. This utility model has a self-stirring function, resulting in smaller data differences collected by the water quality sensor, which can effectively reduce the number of water quality sensor probes.

[0021] 4. This utility model has a small number of water quality sensor probes, resulting in less interference, a more sensitive controller response, higher accuracy in acid / alkali water dosage, less residue, and a more compact structure.

[0022] 5. The aquaculture pond of this utility model is a cylindrical cone-bottom water pond, which can effectively reduce sedimentation and siltation. Attached Figure Description

[0023] Figure 1 A schematic diagram of the structure of this utility model;

[0024] Figure 2 Top view of this utility model;

[0025] Figure 3 Schematic diagram of the structure of the floor drain filter of this utility model;

[0026] Figure 4 This utility model presents a schematic diagram of the control valve structure. Detailed Implementation

[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, an automatic pH adjustment device for water with self-stirring function includes: an acid water pump 1, a left drain pipe 2, an upper probe 3, a lower probe 4, a right drain pipe 5, an alkaline water pump 6, an alkaline water tank 7, an aquaculture pond 8, a floor drain filter 9, an acid water tank 10, a control valve 11, a controller 12, and related connecting water pipes: a straight pipe Q1, a left bend pipe Q2, and a right bend pipe Q3. The acid water tank 10 is located on the left side of the aquaculture pond 8 and is square in shape. The acid water pump 1 is located on the upper right side of the acid water tank 10, with its inlet below the water line S and its outlet passing through the left drain pipe 2 through the upper left side of the aquaculture pond 8 and extending into the lower left side, connecting to the aquaculture pond 8. The alkaline water tank 7 is located on the right side of the aquaculture pond 8 and is square in shape. The alkaline water pump 6... On the upper left side of the alkaline water tank 7, the inlet is below the water line S, and the outlet passes through the upper right side of the aquaculture pond 8 via the right drain pipe 5, extending into the lower right side and connecting to the aquaculture pond 8; the upper probe 3 is below the water line S on the upper side of the inner wall of the aquaculture pond 8, and the lower probe 4 is on top of the drain filter 9 at the center of the bottom of the aquaculture pond 8; the upper probe 3 and the lower probe 4 are connected to the controller 12 via signal lines; the controller 12 is connected to the control valve 11, the acid water pump 1, and the alkaline water pump 6 via signal lines; the bottom of the aquaculture pond 8 is connected to the inlet of the control valve 11 via a straight pipe Q1, the left outlet of the control valve 11 is connected to the bottom of the acid water tank 10 via a left bend pipe Q2, and the right outlet of the control valve 11 is connected to the bottom of the alkaline water tank 7 via a right bend pipe Q3.

[0028] The left and right pipes 2 and 5 are curved pipes of the same size, arranged in a counter-clockwise left-hand rotation with an axisymmetric arrangement. The pipe outlets are close to the inner wall of the aquaculture pond 8, and the circular structure of the aquaculture pond 8 acts as a counter-clockwise left-hand drainage plate. If this invention is used in the Southern Hemisphere, the left and right pipes 2 and 5 are changed to an axisymmetric clockwise right-hand rotation, and the circular structure of the aquaculture pond 8 acts as a clockwise right-hand drainage plate.

[0029] The aquaculture pond 8 is a cylindrical cone-bottomed water tank.

[0030] The floor drain filter 9 includes: rattan cotton 9-1, wool felt 9-2, mesh plate 9-3, and floor drain shell 9-4. The floor drain shell 9-4 has a conical funnel structure and is located at the center of the bottom of the aquaculture pond 8, with a straight pipe Q1 connected to the bottom. The rattan cotton 9-1 is above the wool felt 9-2, and both are located inside the floor drain shell 9-4. The mesh plate 9-3 has a disc structure and is located below the wool felt 9-2 and on the upper part of the cone of the floor drain shell 9-4.

[0031] The control valve 11 is a three-position three-way solenoid valve, including: electromagnet 11-1, valve body 11-2, return spring 11-3, and valve core 11-4. Electromagnet 11-1 and return spring 11-3 are located on the left and right sides of valve body 11-2. The inlet of control valve 11 is connected to the bottom of floor drain filter 9 via straight pipe Q1. The left outlet of control valve 11 is connected to the bottom of acid water tank 10 via left bend pipe Q2. The right outlet of control valve 11 is connected to the bottom of alkaline water tank 7 via right bend pipe Q3. When starting, controller 12 controls valve core 11-4 to slide left and right. When closing, return spring 11-3 pushes valve core 11-4 back to the middle position.

[0032] The acid water tank 10 contains acidic filter material to acidify the filtered water input through the left-hand bend pipe Q2.

[0033] The alkaline water tank 7 contains alkaline filter media to alkalize the filtered water input through the right-bend pipe Q3.

Claims

1. An automatic pH adjustment device for water with self-stirring function, comprising: The system comprises an acid water pump, a left drain pipe, an upper probe, a lower probe, a right drain pipe, an alkaline water pump, an alkaline water tank, a breeding pond, a floor drain filter, an acid water tank, a control valve, a controller, a straight pipe, a left bend pipe, and a right bend pipe. The acid water tank and alkaline water tank are located on both sides of the breeding pond. The acid water pump and alkaline water pump are connected to the breeding pond via the left and right drain pipes. The upper and lower probes are located inside the breeding pond and are connected to the controller via signal lines. The controller is connected to the control valve, the acid water pump, and the alkaline water pump via signal lines. The bottom of the breeding pond is connected to the inlet of the control valve via a straight pipe. The left outlet of the control valve is connected to the acid water tank via a left bend pipe, and the right outlet of the control valve is connected to the alkaline water tank via a right bend pipe. The system is characterized in that: the acid water pump is located on the upper right side of the acid water tank and is connected to the breeding pond via the left drain pipe; the alkaline water pump is located on the upper left side of the alkaline water tank and is connected to the breeding pond via the right drain pipe; the upper probe is located below the waterline of the breeding pond, and the lower probe is located at the top of the floor drain filter at the bottom of the breeding pond.

2. The automatic pH adjustment device for water with self-stirring function according to claim 1, characterized in that: The left and right pipes are curved pipes of the same size, arranged in an axisymmetric counterclockwise left-hand rotation or an axisymmetric clockwise right-hand rotation, with the pipe outlet close to the inner wall of the aquaculture pond.

3. An automatic pH adjustment device for water with self-stirring function according to claim 1 or 2, characterized in that: The aquaculture pond is a cylindrical cone-bottomed water tank.

4. The automatic pH adjustment device for water with self-stirring function according to claim 3, characterized in that: The drain filter includes: rattan cotton, wool felt, grid plate, and drain housing. The rattan cotton is above the wool felt, and both are located inside the drain housing. The grid plate is below the wool felt and is located at the top of the cone-shaped drain housing.

5. The automatic pH adjustment device for water with self-stirring function according to claim 4, characterized in that: The drain shell has a conical funnel structure.

6. The automatic pH adjustment device for water with self-stirring function according to claim 5, characterized in that: The grid plate has a disc structure.

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