CN114651780B - Stable rotary sedimentation and sewage discharge device and method for fecal sewage in aquaculture water - Google Patents
Stable rotary sedimentation and sewage discharge device and method for fecal sewage in aquaculture water Download PDFInfo
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- CN114651780B CN114651780B CN202210446057.9A CN202210446057A CN114651780B CN 114651780 B CN114651780 B CN 114651780B CN 202210446057 A CN202210446057 A CN 202210446057A CN 114651780 B CN114651780 B CN 114651780B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 187
- 239000010865 sewage Substances 0.000 title claims abstract description 68
- 238000009360 aquaculture Methods 0.000 title claims abstract description 19
- 244000144974 aquaculture Species 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title abstract description 18
- 238000004062 sedimentation Methods 0.000 title abstract description 17
- 230000002550 fecal effect Effects 0.000 title description 19
- 238000011010 flushing procedure Methods 0.000 claims description 34
- 230000008021 deposition Effects 0.000 claims description 22
- 238000007599 discharging Methods 0.000 claims description 12
- 238000000605 extraction Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000006698 induction Effects 0.000 claims description 2
- 239000002699 waste material Substances 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 abstract description 3
- 210000003608 fece Anatomy 0.000 abstract 1
- 239000010871 livestock manure Substances 0.000 abstract 1
- 241000251468 Actinopterygii Species 0.000 description 22
- 238000009825 accumulation Methods 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 241000238557 Decapoda Species 0.000 description 1
- 206010070834 Sensitisation Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000008313 sensitization Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/047—Liquid pumps for aquaria
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
Abstract
The invention provides a stable rotary sedimentation and sewage discharge device and a method for the excrement and sewage in an aquaculture water body, wherein the device comprises a cone arranged at the bottom of a culture pond, a water outlet pipe which is arranged on the wall of the culture pond and is connected in a tee joint mode, an inner water inlet pipe and an outer water inlet pipe, the water outlet pipe is tangential to the wall of the pond, and a first booster pump and a first water flow rate sensor are arranged on the water outlet pipe; the taper of the cone is variable, the small end faces downwards, and the bottom is provided with a blow-down valve. The invention can be used for the design and research of aquaculture facilities, and can realize stable rotation of water bodies, efficient sedimentation of residual sewage and stable pollution discharge; the water consumption can be controlled efficiently, and the high-density intensive aquaculture is supported; realizes the resource utilization of the excrement residue, and provides conditions for circulating culture, low-carbon high-efficiency pond circulating water culture, pond high-density culture and the like. The method comprises the following steps: stable rotary sedimentation of the water body manure; adjusting the inclination of the bottom cone; and (5) stable pollution discharge.
Description
Technical Field
The invention relates to the technical field of aquaculture devices, in particular to a device and a method for stable rotary sedimentation and sewage discharge of excrement in an aquaculture water body.
Background
China is the first China of the world, the total yield of Chinese aquaculture in 2018 is over 5000 ten thousand tons, 50% of the aquaculture comes from pond culture, and in recent years, due to the gradual tightening of environmental protection policies, the cultivation inhibition measures are adopted for part of rough cultivation modes (such as reservoir and surrounding lake culture), and the pond culture proportion is continuously increased. However, the intensive culture density of the pond is high, the bait system is large, 70% -80% of the feed enters the water body, and the residual bait and fish and shrimp excrement cause serious pollution to the water body, the bottom mud and the like, so that the culture water body is eutrophicated.
In order to effectively settle the excrement, a water body rotary settlement purification strategy is mostly adopted at present, and the power source is mainly generated by water inflow impulsive force. However, the rotation speed of the water body is stuffy and slow, and the residual sewage sedimentation is continuously influenced in the water inlet process, so that the water body is turbid, the water body purification and pollution discharge effects are influenced, and the unstable water inlet and outlet can generate stress on the fish shoals, so that the healthy growth of the fish shoals is not facilitated.
The fish pond water body rotates to deposit the excrement, and the bottom of the fish pond water body generally adopts a conical design to improve the excrement sedimentation effect. However, the taper slope of the bottom of the pool is designed fixedly at present, the slope is not unified and standardized, and the smaller the taper slope, the lower the cost, the smaller the taper slope is designed through estimation.
Aiming at the deposited fecal sewage, manual sewage discharge and timing sewage discharge are mostly carried out by estimating the sedimentation condition of the fecal sewage, and the collected fecal sewage has high water content and higher subsequent purification cost.
Disclosure of Invention
In order to solve the technical problems, the invention provides a stable rotary sedimentation and sewage discharge device and method for the excrement of an aquaculture water body.
The invention is realized by the following technical scheme.
The invention provides a stable rotary sedimentation and sewage discharge device for the excrement and sewage in an aquaculture water body, which comprises a cone arranged at the bottom of a culture pond, a water outlet pipe, an inner water inlet pipe and an outer water inlet pipe, wherein the water outlet pipe is arranged on the wall of the culture pond and is connected in a tee joint mode, the water outlet pipe is tangential to the wall of the pond, and a first booster pump and a first water flow rate sensor are arranged on the water outlet pipe; the taper of the cone is variable, the small end faces downwards, and the bottom is provided with a blow-down valve.
The bottom of the cone is also provided with a water body rotation speed sensing valve.
The bottom of the cone is also vertically provided with first light-sensitive sensors.
The cone comprises a plurality of concentric circular rings, the circular rings are connected through flexible waterproof materials, and the outermost circular ring is in sliding connection with the wall of the culture pond.
The gap at the upper part of the circular ring is provided with annular plastic with the middle part inclined downwards, and the surface of the annular plastic is smooth.
The annular plastic is uniformly distributed with second photosensitive sensors.
The water flushing device also comprises an annular water flushing device, wherein the annular water flushing device is positioned on the ring at the outermost side, a second booster pump is arranged on the annular water flushing device, and a plurality of small holes are distributed obliquely downwards at the inner side of the annular water flushing device.
And a second water speed sensor is arranged on the small hole.
In addition, the diameter range of the inner water inlet pipe, the outer water inlet pipe, the water outlet pipe and the blow-down valve is 1/3 to 1/2 of the height of the adult fish body of the cultured fish, and the end part is of a spherical net structure. Is convenient for making the water swirl uniform and preventing fish from entering.
In addition, the blow-down valve is connected with the bottom suction pump, so that the speed of the excrement and sewage extraction can be conveniently controlled.
The invention also provides a stable rotary sedimentation and sewage disposal method for the excrement of the aquaculture water body, which comprises the following steps:
1. the water body excrement stably rotates and settles, the water outlet pipe is arranged in the range of one quarter of the depth of water below the water surface, and the water flow rate of the water outlet pipe is regulated to 0.2-0.6 m/s;
when external water inflow is started, the first water speed sensor collects water speed data and transmits the water speed data to the singlechip, and the singlechip controls the first booster pump to accelerate or decelerate so that the water speed is controlled in a preset range.
When the sewage draining part is started, the water body rotation speed sensing valve collects water body rotation data in real time and sends the water body rotation data to the singlechip, the singlechip controls the first booster pump to work in a decelerating mode, controls the bottom suction pump to work in an accelerating mode, and controls the acceleration to be 0.1m/s2 until the water body rotation speed reaches a preset speed.
The setting of the water body rotation speed is obtained by calculating the water speed of the edge of the pool water, and the calculating method comprises the following steps: let the water body rotational speed be V (r/s), pond water edge water speed be V (m/s), fish pond diameter d (mm), according to the formula: v=1000×v/(3.14×d).
2. The inclination of the cone at the bottom is adjusted, the height of the cone is h, the designed flushing speed of the annular flushing device is Vc, the minimum effective flushing distance is Ic, ic is equal to Vc in value, the maximum flushing distance is Sc, and the method is as follows: sc=ic+SQRT (2*h/10), selecting the value of Sc closest to the radius of the fish pond in the adjustable gear of cone height and flushing speed;
3. stable pollution discharge comprises automatic pollution discharge based on the thickness of the deposited excrement and automatic pollution discharge based on the area of the deposited excrement.
The automatic sewage discharge based on the thickness of the excrement deposition specifically comprises the following steps: the first photosensitive sensors are distributed along the vertical interval of 0.5cm or 1cm, data 0 is transmitted when the first photosensitive sensors are shielded, otherwise data 1 is transmitted, and the sum of the transmitted data is the number n of the first photosensitive sensors capable of being sensitized; the fecal sewage deposition thickness is L=N-N, N is the total number of the first photosensitive sensors, and the singlechip controls the starting or closing of the sewage draining part according to the comparison of L and the fecal sewage deposition thickness of the preset sewage draining.
The automatic sewage disposal based on the excrement deposition area comprises the following steps: and 1-2 second photosensitive sensors are uniformly distributed on each circular ring or annular plastic of the cone, data 0 is transmitted when the second photosensitive sensors are shielded, otherwise data 1 is transmitted, the sum of the transmitted data is the number M of the photosensitive second photosensitive sensors, P is set to be the preset bottom fecal sewage accumulation area proportion, the total number of the second photosensitive sensors is K, and the singlechip controls the sewage discharging part and the annular flusher to be started or closed according to the comparison of P and the fecal sewage accumulation area of preset sewage according to the fact that M=K (1-P).
The invention has the beneficial effects that:
the invention can be used for the design and research of aquaculture facilities, and can realize stable rotation of water bodies, efficient sedimentation of residual sewage and stable pollution discharge; the water consumption can be controlled efficiently, and the high-density intensive aquaculture is supported; realizes the resource utilization of the excrement residue, and provides conditions for circulating culture, low-carbon high-efficiency pond circulating water culture, pond high-density culture and the like.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the depression structure of the present invention.
Fig. 3 is a schematic view of the structure of the cone.
Fig. 4 is a schematic structural view of the annular flusher.
Fig. 5 is a process flow diagram of the blowdown process of the present invention.
In the figure: 1-a culture pond; 2-cone; 3-a water outlet pipe; 301-a first water velocity sensor; 4-an internal water inlet pipe; 5-an external water inlet pipe; 6-a first booster pump; 7-a blow-down valve; 8-a water body rotation speed induction valve; 9-a circular ring; 10-ring-shaped plastic; 11-a first light sensor; 12-a second photosensor; 13-an annular flusher; 14-a second booster pump; 15-small holes; 16-a second water velocity sensor.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the above.
See fig. 1-4:
the invention provides a stable rotary sedimentation and sewage discharge device for the excrement and sewage in an aquaculture water body, which comprises a cone 2 arranged at the bottom of a culture pond 1, a water outlet pipe 3 arranged on the wall of the culture pond 1 and connected in a tee joint manner, an inner water inlet pipe 4 and an outer water inlet pipe 5, wherein the water outlet pipe 3 is tangential to the wall of the pond, and a first booster pump 6 and a first water flow rate sensor are arranged on the water outlet pipe 3; the taper of the cone 2 is variable, the small end faces downwards, and the bottom is provided with a blow-down valve 7.
Principle of: the stable rotation of the water body can be realized through the booster pump, the first water speed sensor 301 and the water inlet pipe, and the first water speed sensor 301 can be used for detecting the rotation kinetic energy of the water body, so that the rotation speed of the water body can be controlled to be stable; the bottom taper can be adjusted according to actual conditions by adopting the taper-variable cone, so that the high-efficiency sedimentation of the excrement is facilitated, and the stable pollution discharge is realized; when in sewage discharge, the water outlet pipe 3 can be connected with an external water supply device at the same time, so that the water level in the culture pond 1 is kept constant, and the water consumption is controlled efficiently; meanwhile, the discharged excrement has low water content, is easy to dehydrate and can be recycled. The first water speed sensor 301, the first booster pump 6 and the blow-down valve 7 are connected with the singlechip, and the rotation speed of the water body can be automatically controlled through the singlechip, so that the use is convenient. In addition, the invention does not need to adopt a scheme through the measure of automatic control of the singlechip, and can also adopt manual control without influencing the realization of the invention.
In conclusion, the invention can be used for the design and research of aquaculture facilities, and can realize stable rotation of water bodies, efficient sedimentation of residual sewage and stable pollution discharge; the water consumption can be controlled efficiently, and the high-density intensive aquaculture is supported; realizes the resource utilization of the excrement residue, and provides conditions for circulating culture, low-carbon high-efficiency pond circulating water culture, pond high-density culture and the like.
The bottom of the cone 2 is also provided with a water body rotation speed sensing valve 8. The device is used for measuring the rotation speed of the cone-bottom water body and can measure and calculate the rotation speed of the peripheral water body by combining with the radius of the culture pond 1, so that the device is combined with the first water speed sensor 301 and the first booster pump 6, the rotation stability of the water body is further improved, and the controllability is stronger; the pollution discharge process has an influence on the rotation of the water body, and by the arrangement, the influence can be compensated in time, so that the stable rotation of the water body is maintained, and the surprise fish shoals and the precipitate are prevented from being excited; the water body rotation speed sensing valve 8 is connected with a singlechip and can be automatically controlled by the singlechip.
The bottom of the cone 2 is also vertically distributed with first light-sensitive sensors 11. When the fecal sewage is deposited to a certain depth, part of the first photosensitive sensor 11 is covered and shielded, the shielded quantity reflects the deposition thickness of the fecal sewage, so that the sewage discharging part (the sewage discharging valve 7) is conveniently opened at a certain thickness, and the sewage discharging part is closed at a certain degree of sewage discharging, so that the sewage discharging process is stable, and the discharged fecal sewage has low water content; the first photosensitive sensor 11 can be connected with a singlechip, and can automatically calculate the deposition thickness and control the opening and closing of the sewage discharging part through the singlechip.
The cone 2 comprises a plurality of concentric circular rings 9, the circular rings 9 are connected through flexible waterproof materials, and the circular ring 9 at the outermost side is in sliding connection with the wall of the culture pond 1. When in work, the lifting device is used for connecting the outermost circular ring 9, so that the taper of the cone 2 can be changed, and the operation is convenient; the lifting device can be a motor screw, hoisting equipment and the like, and only the outermost circular ring 9 can be lifted.
The gap at the upper part of the circular ring 9 is provided with annular plastic 10 with the middle part inclined downwards, and the surface of the annular plastic 10 is smooth. The flatness is improved, so that the deposited excrement can easily move to the bottom of the cone 2 under the action of water flow, and the pollution discharge is facilitated; the annular plastic 10 may be a plastic with flexibility and may be connected from the outside to the ring 9 in order to increase the adaptability to the changing taper of the cone 2, for example, the inner side of the annular plastic 10 which loses support sags when the taper becomes greater.
The annular plastic 10 is uniformly distributed with second photosensitive sensors 12. When the excrement deposition covers the bottom of the cone 2 with a certain area, part of the second photosensitive sensors 12 are covered and shielded, the shielded quantity reflects the excrement deposition area proportion, so that the sewage discharge part is conveniently opened when a certain area is deposited, and the sewage discharge part is closed when sewage is discharged to a certain extent, so that the sewage discharge process is stable; the second photosensitive sensor 12 can be connected with a singlechip, and the proportion of the deposition area is automatically calculated through the singlechip to control the opening and closing of the sewage discharging part.
The water flushing device also comprises an annular water flushing device 13, wherein the annular water flushing device 13 is positioned on the outermost circular ring 9, the annular water flushing device 13 is provided with a second booster pump 14, and a plurality of small holes 15 are distributed obliquely downwards on the inner side of the annular water flushing device 13. The water inlet of the second booster pump 14 is positioned in the culture pond 1, the annular flushing device 13 is used for flushing water when the deposition thickness of the excrement is small and the area is large, and the excrement is flushed to the bottom of the cone 2, so that the concentrated sewage discharge is facilitated, and the water content of the discharged excrement is reduced; the second pressurizing pump 14 may be coupled to a single chip microcomputer which automatically calculates a deposition area ratio based on the second photosensitive sensor 12 and calculates a deposition thickness based on the first photosensitive sensor 11, controls the opening and closing of the annular flusher 13, the sewage discharge portion, and controls the pressure of the second pressurizing pump 14.
The small hole 15 is provided with a second water speed sensor 16. The second water flow rate sensor 1-2 is used for measuring the flushing flow rate, the flushing action distance is different under different conicity of the cone 2, the distance is optimal in order to just flush the excrement to the middle part of the cone 2, and under the arrangement, the flushing speed is convenient to control according to different conicity; the flushing speed can be controlled by controlling the pressure of the second booster pump 14, and the second water flow rate can be sensed.
In addition, the diameters of the inner water inlet pipe 4, the outer water inlet pipe 5, the water outlet pipe 3 and the blow-down valve 7 are in the range of 1/3 to 1/2 of the height of the adult fish body of the cultured fish, and the end part is in a spherical net structure. Is convenient for making the water swirl uniform and preventing fish from entering.
In addition, the blow-down valve 7 is connected with a bottom suction pump, so that the speed of the excrement extraction can be conveniently controlled.
In addition, in the northern hemisphere, the water outlet pipe 3 faces in the counterclockwise direction; in the southern hemisphere, the water outlet pipe 3 is directed clockwise. According to the card Pi Luo phenomenon, the rotation direction of the northern hemisphere is anticlockwise, and the southern hemisphere is clockwise, so that energy is saved, and the rotation is more stable.
See fig. 1-5:
the invention also provides a stable rotary sedimentation and sewage disposal method for the excrement of the aquaculture water body, which comprises the following steps:
1. the water body excrement stably rotates and settles, the water outlet pipe 3 is arranged in the range of one quarter of the depth of water below the water surface, and the water flow rate of the water outlet pipe 3 is regulated to 0.2-0.6 m/s;
can adapt to different cultivation requirements. If the fish culture needs to rotate rapidly, the water body can be set to 0.6m/s, and if the feed conversion rate is high, the water body needs to rotate at a low speed, and the water body can be set to 0.2m/s, and defaults to 0.3m/s.
When the external water inflow is started, the first water speed sensor 301 collects the water speed data and transmits the data to the singlechip, and the singlechip controls the first booster pump 6 to accelerate or decelerate so as to control the water speed in a preset range. Because the external water inlet has a certain impact force, the water flow rate of the water outlet pipe 3 is further influenced; this arrangement ensures that the water flow rate is stable. And (3) injection: the water speed is controlled in a preset range, the preset range is preset on site according to actual needs, and is set manually, for example, the water body which is required to rotate rapidly for fish culture for weight reduction can be set to be 0.6m/s, and the allowable error is considered during setting, for example, the allowable error is set to be 0.55-0.65 m/s.
When the sewage discharging part is started, the water body rotation speed sensing valve 8 collects water body rotation data in real time and sends the water body rotation data to the singlechip, the singlechip controls the first booster pump 6 to work in a decelerating mode, controls the bottom suction pump to work in an accelerating mode, and controls the acceleration to be 0.1m/s2 until the water body rotation speed reaches a preset speed. Because the drainage and the pollution discharge can influence the rotation of the water body, the arrangement reduces the influence of the pollution discharge on the rotation speed of the water body, and the power of the pollution discharge is utilized to maintain the stability of the water body, so that the energy is saved. And (3) injection: the explanation is similar to that the water speed is controlled in the preset range until the water rotation speed reaches the preset speed, and the water rotation speed and the peripheral water speed form a definite corresponding relation with respect to the circular radius due to the circular culture pond and cone, and the preset range is also set manually.
The setting of the water body rotation speed is obtained by calculating the water speed of the edge of the pool water, and the calculating method comprises the following steps: let the water body rotational speed be V (r/s), pond water edge water speed be V (m/s), fish pond diameter d (mm), according to the formula: v=1000×v/(3.14×d). Substituting the diameter d of the fish pond and the required water edge water velocity v of the pond, taking a pond with the diameter of 1m of the fish pond as an example, setting the corresponding water edge velocity of 0.2-0.6m/s, setting the corresponding setting range of the stable water body to 0.06-0.19 r/s, setting the corresponding water body to 0.19 r/s when the fish is cultivated by the weight-reducing fish, setting the corresponding water body to low-speed rotation when the feed conversion rate is high, setting the corresponding water body to 0.06 r/s, and defaulting to 0.10 r/s. The calculation results are shown in the following table:
2. the inclination of the bottom cone 2 is adjusted, the height of the cone 2 is set to be h, the designed flushing speed of the annular flushing device 13 is Vc, the minimum effective flushing distance is Ic, ic is equal to Vc in value, the maximum flushing distance is Sc, and the method is as follows: sc=ic+SQRT (2*h/10), selecting the value of Sc closest to the radius of the fish pond in the adjustable gear of the height of the cone 2 and the flushing speed;
note that: SQRT (a) represents the square root of the non-negative real number a. To ensure that the equation is correct, the units Sc, ic, h are units of length of the same order of magnitude. When each parameter is valued, the values should be on the same order of magnitude, for example, vc is m/s, and Sc, ic and h are m.
Step two, calculation example: the default conicity is 45 degrees, every 5 degrees is an adjusting gear, taking a fishpond diameter of 1m as an example, the flushing speed adjusting range of the annular flushing device 13 is 0.2-0.6m/s, three gears of 0.2m/s, 0.3m/s and 0.4m/s are taken as examples, and the calculated results are shown in the following table. It is known that only 0.4m/s is a suitable flushing speed, the singlechip selects the speed, automatically controls the working speed of the second booster pump 14, automatically adjusts the cone height to 0.29m (controls the lifting device or displays the numerical value to be manually adjusted), and the corresponding cone angle is 30 degrees.
3. Stable pollution discharge comprises automatic pollution discharge based on the thickness of the deposited excrement and automatic pollution discharge based on the area of the deposited excrement. The automatic sewage discharge based on the thickness of the excrement deposition specifically comprises the following steps: the first photosensitive sensors 11 are distributed along the vertical interval of 0.5cm or 1cm, when the first photosensitive sensors 11 are shielded, data 0 is transmitted, otherwise, data 1 is transmitted, and the sum of the transmitted data is the number n of the first photosensitive sensors 11 capable of sensitization; the fecal sewage deposition thickness is L=N-N, N is the total number of the first photosensitive sensors (11), and the singlechip controls the starting or closing of the sewage discharge part according to the comparison of L and the fecal sewage deposition thickness of preset sewage discharge.
Taking 111cm interval distribution of the first photosensitive sensors as an example, combining automatic pollution discharge based on the fecal pollution deposition area, and controlling the logic as shown in figure 5; thereby realizing automatic pollution discharge.
The automatic sewage disposal based on the excrement deposition area comprises the following steps: and 1-2 second photosensitive sensors 12 are uniformly distributed on each circular ring 9 or annular plastic 10 of the cone 2, data 0 is transmitted when the second photosensitive sensors 12 are shielded, otherwise, data 1 is transmitted, the sum of the transmitted data is the number M of the photosensitive second photosensitive sensors 12, P is set as the preset bottom fecal sewage accumulation area proportion, the total number of the second photosensitive sensors 12 is K, and according to M=K (1-P), the singlechip controls the sewage discharging part and the annular flusher 13 to be started or closed according to the comparison of P and the fecal sewage deposition area of preset sewage.
Taking 30% of the fecal sewage deposition area of the preset sewage discharge, the total number of the second photosensitive sensors 12 is k=40 as an example, and the control logic is as shown in fig. 5 in combination with automatic sewage discharge based on the fecal sewage deposition thickness; thereby realizing automatic pollution discharge.
Claims (1)
1. The utility model provides an aquaculture water body excrement is dirty stably rotatory subsides and waste fitting discharging which characterized in that: the water outlet pipe (3) is tangential to the pool wall, and a first booster pump (6) and a first water speed sensor (301) are arranged on the water outlet pipe (3); the taper of the cone (2) is variable, the small end of the cone faces downwards, and the bottom of the cone is provided with a blow-down valve (7);
the blow-down valve (7) is connected with the bottom suction pump, so that the speed of the excrement extraction can be conveniently controlled;
the cone (2) comprises a plurality of concentrically arranged circular rings (9), the circular rings (9) are connected through flexible waterproof materials, and the outermost circular ring (9) is in sliding connection with the wall of the culture pond (1);
the bottom of the cone (2) is also provided with a water body rotation speed induction valve (8); the bottom of the cone (2) is also vertically provided with first photosensitive sensors (11);
1 or 2 second photosensitive sensors (12) are uniformly distributed on each circular ring (9) of the cone (2);
the device also comprises an annular flushing device (13), wherein the annular flushing device (13) is positioned on the outermost circular ring (9), a second pressurizing pump (14) is arranged on the annular flushing device (13), a plurality of small holes (15) are distributed obliquely downwards on the inner side of the annular flushing device (13), and a second water speed sensor (16) is arranged on the small holes (15);
the second pressurizing pump (14) is connected with a singlechip, the singlechip automatically calculates the deposition area proportion based on the second photosensitive sensor (12), calculates the deposition thickness based on the first photosensitive sensor (11), controls the opening and closing of the annular flushing device (13) and the blow-down valve (7), and controls the pressure of the second pressurizing pump (14);
when external water inflow is started, the first water speed sensor (301) collects water speed data and transmits the water speed data to the singlechip, and the singlechip controls the first booster pump (6) to accelerate or decelerate so as to control the water speed in a preset range;
when the sewage discharging part is started, the water body rotation speed sensing valve (8) collects water body rotation data in real time and sends the water body rotation data to the singlechip, and the singlechip controls the first booster pump (6) to work in a decelerating mode and controls the bottom suction pump to work in an accelerating mode until the water body rotation speed reaches a preset speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210446057.9A CN114651780B (en) | 2022-04-26 | 2022-04-26 | Stable rotary sedimentation and sewage discharge device and method for fecal sewage in aquaculture water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210446057.9A CN114651780B (en) | 2022-04-26 | 2022-04-26 | Stable rotary sedimentation and sewage discharge device and method for fecal sewage in aquaculture water |
Publications (2)
| Publication Number | Publication Date |
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| CN114651780A CN114651780A (en) | 2022-06-24 |
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| CN113115740A (en) * | 2021-04-27 | 2021-07-16 | 郑州市水产技术推广站 | Funnel-shaped pond ecological circulation culture system and method |
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| JPH08298894A (en) * | 1995-05-08 | 1996-11-19 | Shikoku Chem Corp | Cleaning of sludge in culture pond |
| JP2009165372A (en) * | 2008-01-11 | 2009-07-30 | Haruo Arai | Fish culture apparatus |
| CN105830991A (en) * | 2016-04-12 | 2016-08-10 | 中国水产科学研究院渔业机械仪器研究所 | Culture pond system realizing rotational-flow dirt collection |
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| CN207978722U (en) * | 2018-02-09 | 2018-10-19 | 安徽省农业科学院水产研究所 | A kind of smooth lip fish annular flowing water cultivation apparatus |
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| CN113115740A (en) * | 2021-04-27 | 2021-07-16 | 郑州市水产技术推广站 | Funnel-shaped pond ecological circulation culture system and method |
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