CN112136759A - Device for removing fish manure and fish food residues in fishpond water - Google Patents

Device for removing fish manure and fish food residues in fishpond water Download PDF

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Publication number
CN112136759A
CN112136759A CN202011025011.7A CN202011025011A CN112136759A CN 112136759 A CN112136759 A CN 112136759A CN 202011025011 A CN202011025011 A CN 202011025011A CN 112136759 A CN112136759 A CN 112136759A
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sewage
water
water level
pipe
fish
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CN202011025011.7A
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CN112136759B (en
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吴丹
胡开鑫
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Ningbo University
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Ningbo University
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K63/00Receptacles for live fish, e.g. aquaria; Terraria
    • A01K63/04Arrangements for treating water specially adapted to receptacles for live fish
    • A01K63/045Filters for aquaria
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K63/00Receptacles for live fish, e.g. aquaria; Terraria
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K63/00Receptacles for live fish, e.g. aquaria; Terraria
    • A01K63/04Arrangements for treating water specially adapted to receptacles for live fish
    • A01K63/042Introducing gases into the water, e.g. aerators, air pumps
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K63/00Receptacles for live fish, e.g. aquaria; Terraria
    • A01K63/04Arrangements for treating water specially adapted to receptacles for live fish
    • A01K63/047Liquid pumps for aquaria
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K63/00Receptacles for live fish, e.g. aquaria; Terraria
    • A01K63/10Cleaning bottoms or walls of ponds or receptacles
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81Aquaculture, e.g. of fish

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Farming Of Fish And Shellfish (AREA)

Abstract

The invention discloses a device for removing fish feces and fish food residues in fish pond water, which comprises: the fish pond, the Venturi oxygen aerator, the primary sewage discharger, the electric cabinet, the secondary sewage separation barrel and the floater filter screen, the Venturi oxygen aerator increases oxygen for water and also promotes water to rotate in the round fish pond, so that fish dung and fish food residues deposited at the bottom of the pond are gathered at the center of the pond, the floating fish dung and fish food residues drift along the pond on the water surface, and the floater filter screen collects and cleans the floater in time, the sewage gathered in the center of the pond is firstly sucked into a secondary sewage separation barrel and then separated, the sewage with high content of fish manure and fish food residues is discharged by utilizing related equipment, the residual clear water returns to the pond, therefore, before the fish manure and fish food residues are not fermented to pollute the water quality, the fish manure and the fish food residues can be discharged out of the fishpond in time, the water quality is ensured to keep high quality for a long time, the phenomena of high cost such as replacement of the whole pond water for cleaning sewage and the like are avoided, meanwhile, the fish can be cultured in high density, and the quality of the fish is improved due to the directional flow of the water.

Description

Device for removing fish manure and fish food residues in fishpond water
Technical Field
The invention relates to the technical field of water quality purification of fishponds, in particular to a device for removing fish manure and fish food residues in fishpond water.
Background
In the related technology, the water quality of a fishpond is related to the yield of fish and the quality of fish, key substances influencing the water quality are fish manure and fish food residues, the fish manure and the fish food residues directly influence the change of organic matters in water and dissolved oxygen of water, a large amount of deposits can make water smelly, turn green and black, cause fish to die, and timely eliminate the negative influence of the fish manure and the fish food residues in the fishpond on fishery culture, so that extensive research is carried out by vast research colleagues to obtain great achievements, methods such as plant purification, mechanical pore filtration purification, microbial purification and the like are mainly adopted, but various methods have various difficulties and problems, such as the control of a microbial purifying agent is difficult, and the residual quality in the water quality cannot be removed; the mechanical pore filtration and purification needs to carry out integral circulating filtration on the pond, so that the engineering quantity is large, the economic cost is high, and the difficulty in removing pollutants in the mechanical pores is large; the plant purification efficiency is low, and the decontamination and the pollution increase of the fishpond for high-density culture cannot be matched. Therefore, a set of system for removing fish manure and fish food residues in the water of the fishpond in time is designed, the system can adapt to high-density cultivation, is low in economic investment, high in automation degree and capable of being recycled, plays a positive role in developing fishery cultivation, and provides effective help for improving the yield per unit of the fishpond and increasing the income of fishermen.
Disclosure of Invention
The invention provides a device for removing fish manure and fish food residues in fish pond water, which can remove pollutants in the first time, thereby reducing the fish culture cost and improving the fish quality.
The device for removing fish manure and fish food residues in fishpond water comprises: the fishpond is formed into a circular shape, the inner peripheral wall of the fishpond is concentric from the top of the fishpond to the bottom of the fishpond, the radius of the fishpond is equal or the radius of partial position of the fishpond is gradually reduced from the top of the fishpond to the bottom of the fishpond, the inner bottom wall of the fishpond is a horizontal plane, the center of the bottom wall of the fishpond is provided with a circular hole sewage discharge outlet concentric with the bottom wall of the fishpond, and the diameter of the circular hole sewage discharge outlet is 1000-2000 mm;
the device comprises Venturi oxygen explosion devices, wherein each Venturi oxygen explosion device is provided with a Venturi tube, an air inlet pipe, an electric water wheel and an oxygen explosion water outlet, the Venturi oxygen explosion devices are arranged below the water surface of the fishpond adjacent to the circular wall, the air inlet pipes are exposed out of the water surface, the circular arc intervals of the two adjacent Venturi oxygen explosion devices are equal, and the oxygen explosion water outlet of each Venturi oxygen explosion device faces to the water inlet where the electric water wheel of the adjacent Venturi oxygen explosion device is located along the circular arc;
a primary trapper, the primary trapper comprising: the sewage discharge gate is a first disc, the diameter of the first disc is equal to that of the circular hole sewage discharge outlet, the two first circular surfaces of the first disc are both planes, a small circular hole is formed in the center of each first circular surface, arc-shaped slotted holes symmetrical along the radius are uniformly formed in the periphery of each small circular hole, and each arc-shaped slotted hole penetrates through the first disc in the thickness direction of the first disc; the sewage discharge pipe comprises a sewage collection hopper and a primary sewage pipe, the periphery of a bead of the sewage collection hopper is tightly connected with the periphery of the sewage discharge grid, the primary sewage discharger is embedded into the bottom of the fish pond, the sewage discharge grid is positioned at the sewage discharge port, the circle center of a first disc of the sewage discharge grid is consistent with the circle center of the fish pond, one first circular surface of the first disc of the sewage discharge grid is exposed out of the bottom surface of the fish pond and is level with the bottom surface of the fish pond, and the primary sewage pipe extends to the outer side of the fish pond from the center of the bottom surface under the fish pond;
a second stage dirt separation bucket, the second stage dirt separation bucket includes: the device comprises a main barrel, a water level pipe, a primary sewage inlet pipe, a primary sewage pipe electromagnetic valve, a secondary sewage discharger, a secondary sewage discharge pump, a bidirectional water pipe electromagnetic valve, a clear water return pipe and a sewage discharge pipe, wherein the secondary sewage separation barrel is arranged on the outer side of the wall of the fish pond; the secondary sewage separation barrel is provided with a highest water level line and a lowest water level line, the highest water level is not higher than the horizontal plane of the fish pond, the lowest water level is not higher than the bottom surface of the fish pond, and the primary sewage pipe electromagnetic valve is a normally closed electromagnetic valve;
the water level travel switch and the water level switch are both arranged in the water level pipe, the switch in the water level travel switch is a single-pole double-throw switch, the highest trigger point in the water level travel switch is aligned with the highest water level line of the secondary dirt separation barrel, and the lowest trigger point in the water level travel switch is aligned with the lowest water level line of the secondary dirt separation barrel;
the floating object filter screen is arranged on the water surface at the edge of the fish pond, and the opening of the floating object filter screen faces to the direction opposite to the water flow direction;
the electric cabinet comprises a timing power supply device, the timing power supply device supplies power to the venturi oxygen explosion device, the primary sewage pipe electromagnetic valve, the secondary sewage drainage pump and the bidirectional water pipe electromagnetic valve at regular time, the timing power supply device, the water level travel switch and the water level switch establish corresponding logic relations with the power supplies of the venturi oxygen explosion device, the primary sewage pipe electromagnetic valve, the secondary sewage drainage pump and the bidirectional water pipe electromagnetic valve, and the logic relations comprise:
the timing power supply device supplies power to the four Venturi oxygen explosion devices at regular time, the power supply time is Ta, after the power supply time is stopped, the power is supplied to a comprehensive circuit comprising a primary sewage pipe electromagnetic valve, a secondary sewage pump and a bidirectional water pipe electromagnetic valve, the power supply time is Tc, the process is repeated after three periods of time of Ta, Tb and Tc, and the cycle period T0 is Ta + Tb + Tc;
wherein, during a Tc period of powering the integrated circuit:
the power supply is controlled by the water level travel switch: the water level travel switch respectively supplies power to the primary sewage pipe electromagnetic valve or the time delay power supply according to the highest water level or the lowest water level set by the secondary sewage separating barrel; when the water level is at the lowest water level, a single-pole double-throw switch in the water level travel switches supplies power to the primary sewage pipe electromagnetic valve; when the water level stroke switch is positioned at the highest water level, the single-pole double-throw switch in the water level stroke switch supplies power to the time delay power supply device, and the power is supplied to the secondary sewage drainage pump after the time delay Te is delayed; the time from the lowest water level to the highest water level is Td, the time from the highest water level to the lowest water level of the secondary sewage pump is Tf, and after the Td, the Te and the Tf, the process is repeated, wherein Tco is Td + Te + Tf, Tc is nTco, n is an integer, and n is more than or equal to 1 and less than or equal to 3;
the water level switch controls power supply, the water level switch controls power supply to the bidirectional water pipe electromagnetic valve according to the water level, when the water level rises above a certain position, the water level switch supplies power to the bidirectional water pipe electromagnetic valve, and the bidirectional water pipe electromagnetic valve closes the clear water return pipe and opens the sewage discharge pipe; and when the water level is reduced to be below a certain position, the water level switch stops supplying power to the bidirectional water pipe electromagnetic valve, and the bidirectional water pipe electromagnetic valve opens the clear water return pipe and closes the sewage discharge pipe.
According to the device for removing fish manure and fish food residues in fishpond water, disclosed by the embodiment of the invention, the Venturi oxygen explosion device, the primary sewage drainer, the secondary sewage separation barrel and the floating filter screen are arranged, so that the Venturi oxygen explosion device can rotate pond water and increase the oxygen content in the water; according to the characteristic that granular fish dung and fish food residues are deposited at the bottom of a pond and the tea cup theory in hydrodynamics, the fish pond is arranged into a round pond, water in the pond rotates directionally, so that the fish dung and the fish food residues deposited at the bottom of the pond are concentrated at the center of the bottom of the fish pond, floaters are collected on the water surface at the edge of the fish pond, the fish dung and the fish food residues concentrated at the center of the bottom of the fish pond are sucked into a secondary dirt separation barrel, the fish dung and the fish food residues are concentrated at the center of the bottom of the separation barrel by the secondary dirt separation barrel, the fish dung and the fish food residues at the center of the bottom of the barrel are discharged by the secondary dirt separation barrel firstly, and the residual relatively clean pond water flows back to the fish pond before fermenting and polluting the water quality, the residual relatively clean pond water can be discharged out of the fish dung and the fish food residues in time, the water quality of the fish dung and the fish food residues can be kept for a long time, and the high cost phenomenon that the whole pond, meanwhile, the fish can be cultured in high density, and the quality of the fish is improved due to the directional flow of water. In addition, only a small amount of pond water is discharged when the fish manure and fish food residues are removed, so that the energy consumption is low.
In some embodiments of the invention, the main barrel is a straight barrel with the same radius and an opening in the vertical upward direction, the opening of the main barrel is along the same horizontal plane with the dam crest of the fishpond, a water level pipe is fixedly arranged on the outer side of the vertical wall, the water level pipe is vertically arranged, the main barrel is communicated with a bottom waterway of the water level pipe, the barrel wall where the main barrel is communicated with the bottom waterway of the water level pipe is still a circular wall with the same radius, the outer side of the bottom of the main barrel is a plane, a sewage discharge hole is arranged in the center of the bottom of the main barrel, the inner side surface of the bottom of the main barrel is an inclined bucket surface, the thickness of the bottom of the barrel wall of the main barrel is larger than that of the edge of the sewage discharge hole, the primary sewage inlet pipe is connected with the barrel wall in a tangent mode at the bottom of the barrel wall, and the diameters of a connecting port and a tangent point of, the barrel wall at the connecting port on the barrel wall of the main barrel is a circular wall with the same radius, wherein the primary sewage inlet pipe is communicated with the primary sewage pipe waterway;
the secondary blowdown apparatus includes:
the secondary sewage discharging grid is a second disc, the upper and lower second circular surfaces of the second disc are planes, a plurality of rectangular slotted holes are uniformly arranged in the edge circle of the second circular surface at intervals, the rectangular slotted holes are parallel to each other and are abutted against the edge circle, all the rectangular slotted holes penetrate through the second disc in the thickness direction of the second disc, the secondary sewage discharging grid is closely and indirectly arranged in the sewage discharging hole, and one second circular surface of the second disc of the secondary sewage discharging grid is exposed out of the bottom surface of the main barrel and is level with the lowest bottom surface of the main barrel; and
the second grade blow off pipe, the second grade blow off pipe includes second grade collection sewage fill and second grade sewer pipe, second grade collection sewage fill bead all around with the second disc closely link up all around, the second grade sewer pipe by main barrel head portion to main barrel top direction extends, insert in the middle of the second grade sewer pipe the second grade sewage dredge pump, the second grade sewer pipe with two-way water pipe solenoid valve meets, two delivery ports of two-way water pipe solenoid valve respectively with clear water back flow the sewage discharge pipe links to each other, wherein, clear water back flow and sewage discharge pipe's delivery port is higher than the highest water level line of second grade filth separation bucket.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic structural diagram of a device for removing fish feces and fish food residues from fish pond water according to an embodiment of the invention;
FIG. 2 is a schematic diagram of a venturi oxygenator according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a primary trapper according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a sewage bar in the primary sewage drainage apparatus according to an embodiment of the present invention;
FIG. 5 is a schematic view of an installation position of the primary trapper according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of a secondary dirt separation bucket according to an embodiment of the present invention;
FIG. 7 is a schematic view of an internal structure of a secondary dirt separation barrel according to an embodiment of the present invention;
FIG. 8 is a schematic view of a secondary waste drainer and an installation location according to an embodiment of the present invention;
fig. 9 is a schematic structural view of a sewage bar in the secondary sewage drainage apparatus according to an embodiment of the present invention;
FIG. 10 is a schematic diagram of a structure and a circuit of a water level stroke switch according to an embodiment of the present invention;
FIG. 11 is a schematic structural view of a two-way water pipe solenoid valve, a clean water return pipe and a sewage discharge pipe according to an embodiment of the present invention;
fig. 12 is a circuit operation schematic diagram of the device for removing fish feces and fish food residues in the fishpond water according to the embodiment of the invention.
Reference numerals:
the fish pond (1) is provided with a plurality of fish ponds,
a Venturi oxygen explosion device 2, an air inlet pipe 21, an electric water wheel 22, an oxygen explosion water outlet 23,
a primary sewage draining device 3, a sewage discharging grid 31,
a first circular surface 311, a small circular hole 312, an arc-shaped slot hole 313,
a sewage discharge pipe 32, a sewage collection hopper 321, a primary sewage pipe 322, a primary sewage inlet pipe 33,
an electric cabinet 4, a secondary dirt separating barrel 5,
a sewage discharge pipe 50, a main tub 51, a water level pipe 52,
a water level travel switch 521, a single-pole double-throw switch 5211, a water level switch 522,
a first-level sewage pipe electromagnetic valve 53, a connecting port 54, a tangent point 541,
a secondary pollution discharge device 55, a second round surface 550, a rectangular slotted hole 5501,
a secondary sewage discharging grid 551, a secondary sewage collecting hopper 552, a secondary sewage pipe 553,
a sewage discharge hole 56, a barrel wall 561, an edge 562, a secondary sewage discharge pump 57,
a two-way water pipe solenoid valve 58, a clean water return pipe 59,
a floater screen 6.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the applicability of other processes and/or the use of other materials.
An apparatus for discharging fish feces and fish food residues in pond water according to an embodiment of the present invention will be described with reference to the accompanying drawings.
As shown in fig. 1 to 12, the apparatus for discharging fish feces and fish food residues in pond water according to the embodiment of the present invention comprises: the device comprises a fishpond 1, a Venturi aerator 2, a primary sewage discharger 3, an electric cabinet 4, a secondary sewage separation barrel 5, a water level travel switch 521, a water level switch 522 and a floating object filter screen 6.
As shown in fig. 1, the fishpond 1 is formed in a circular shape, the inner peripheral wall of the fishpond 1 is concentric circles from the top of the fishpond 1 to the bottom of the fishpond 1, the radius of the fishpond 1 is equal or the radius of part of the fishpond 1 is gradually reduced in the direction from the top of the fishpond 1 to the bottom of the fishpond 1, the inner bottom wall of the fishpond 1 is a horizontal plane, a circular hole sewage discharge outlet concentric with the bottom wall of the fishpond 1 is arranged in the center of the bottom wall of the fishpond 1, and the diameter of the circular hole sewage discharge outlet is 1000mm-2000 mm. According to the 'teacup theory' in hydromechanics, the fish pond 1 is set into a round pond, and water in the pond rotates directionally, so that fish manure and fish food residues deposited at the bottom of the pond are concentrated in the center of the bottom of the fish pond 1, and the collection of the fish manure and the fish food residues is facilitated. For example, in some examples of the invention, the diameter of the round hole drain outlet may be 1000mm, 1200mm, 1400mm, 1600mm, 1800mm or 2000 mm. Specifically, the diameter of the circular hole sewage draining exit can be set according to the size and the requirement of the fishpond 1.
As shown in fig. 1 and 2, the venturi oxygen explosions 2 are provided with venturi tubes, air inlet pipes 21, electric water wheels 22 and oxygen explosion water outlets 23, the venturi oxygen explosions 2 are arranged below the water surface of the fishpond 1 adjacent to the circular wall, the air inlet pipes 21 are exposed out of the water surface, the circular arc intervals of two adjacent venturi oxygen explosions 2 are equal, and the oxygen explosion water outlet 23 of each venturi oxygen explosions 2 is arranged along the circular arc towards the water inlet where the electric water wheel 22 of the adjacent venturi oxygen explosions 2 is located. It can be understood that the venturi aerator 2 can rotate the pond water and increase the oxygen content in the water, thereby improving the production quality of the fish.
As shown in fig. 1, 3, 4 and 5, the primary sewage drainage apparatus 3 includes: the sewage discharge gate 31 is a first disc, the diameter of the first disc is equal to that of the circular hole sewage discharge outlet, two first circular surfaces 311 of the first disc are both planes, a small circular hole 312 is formed in the center of each first circular surface 311, arc-shaped slotted holes 313 symmetrical in radius are uniformly formed in the periphery of each small circular hole 312, and each arc-shaped slotted hole 313 penetrates through the first disc in the thickness direction of the first disc; the sewage discharge pipe 32 comprises a sewage collection bucket 321 and a primary sewage pipe 322, the edge of the sewage collection bucket 321 is tightly connected with the periphery of the sewage discharge grid 31, the primary sewage discharger 3 is embedded into the bottom of the fish pond 1, the sewage discharge grid 31 is positioned at the sewage discharge port, the circle center of the first disc of the sewage discharge grid 31 is consistent with that of the fish pond 1, the bottom surface of the fish pond 1 is exposed out of the first circular surface 311 of the first disc of the sewage discharge grid 31 and is level with the bottom surface of the fish pond 1, and the primary sewage pipe 322 extends to the outer side of the fish pond 1 from the center of the bottom surface under the fish pond 1.
As shown in fig. 6 to 11, the secondary dirt-separating tub 5 includes: a main barrel 51, a water level pipe 52, a primary sewage inlet pipe 33, a primary sewage pipe electromagnetic valve 53, a secondary sewage discharger 55, a secondary sewage discharge pump 57, a bidirectional water pipe electromagnetic valve 58, a clear water return pipe 59 and a sewage discharge pipe 50, wherein the secondary sewage separation barrel 5 is arranged on the outer side of the wall of the fishpond 1 (refer to fig. 1); the secondary sewage separating barrel 5 is set with a highest water level line and a lowest water level line, the highest water level is not higher than the horizontal plane of the fish pond 1, the lowest water level is not higher than the bottom surface of the fish pond 1, and the primary sewage pipe electromagnetic valve 53 is a normally closed electromagnetic valve. It can be understood that the fish manure and the fish food residues concentrated in the center of the bottom of the fishpond 1 are sucked into the secondary dirt separation barrel 5, the fish manure and the fish food residues are concentrated in the center of the bottom of the separation barrel by the secondary dirt separation barrel 5, the fish manure and the fish food residues in the center of the bottom of the separation barrel are discharged by the secondary dirt separation barrel 5, and the residual relatively clean pond water flows back to the fishpond 1, so that the fish manure and the fish food residues can be discharged out of the fishpond 1 in time before fermentation to pollute the water quality, the water quality is ensured to be kept for a long time and high quality, the high-cost phenomenon that the whole pond water is replaced for cleaning dirt is avoided, and the fish can be cultured at high density.
As shown in fig. 7 and 10, a water level stroke switch 521 and a water level switch 522 are both provided in the water level pipe 52, the switch of the water level stroke switch 521 is a single-pole double-throw switch 5211, the highest trigger point of the water level stroke switch 521 is aligned with the highest water level line of the secondary dirt-separating tub 5, and the lowest trigger point of the water level stroke switch 521 is aligned with the lowest water level line of the secondary dirt-separating tub 5.
As shown in fig. 1, a float screen 6 is provided at the surface of the water at the edge of the fish pond 1, and the opening of the float screen 6 is directed opposite to the direction of the water flow. Therefore, the floating filter screen can float on the pool edge on the water surface, and the floating objects can be collected and cleaned in time.
As shown in fig. 1-12, the electric cabinet 4 includes a timing power supply device, the timing power supply device periodically supplies power to the venturi oxygen explosion device 2, the primary sewage pipe electromagnetic valve 53, the secondary sewage drainage pump 57 and the bidirectional water pipe electromagnetic valve 58, the timing power supply device, the water level travel switch 521 and the water level switch 522 establish corresponding logical relations with the power supplies of the venturi oxygen explosion device 2, the primary sewage pipe electromagnetic valve 53, the secondary sewage drainage pump 57 and the bidirectional water pipe electromagnetic valve 58, and the logical relations include:
the timing power supply device supplies power to the four venturi oxygen explosions 2 at regular time, the power supply time is Ta, after the power supply time Tb is stopped, the power supply device supplies power to a comprehensive circuit comprising a primary sewage pipe electromagnetic valve 53, a secondary sewage pump 57 and a bidirectional water pipe electromagnetic valve 58, the power supply time is Tc, the process is repeated after three periods of time of Ta, Tb and Tc, and the cycle period T0 is Ta + Tb + Tc;
wherein, in the Tc time period for powering the integrated circuit:
the power supply is controlled by a water level travel switch 521: the water level travel switch 521 supplies power to the primary sewage pipe electromagnetic valve 53 or the time-delay power supply according to the highest water level or the lowest water level set by the secondary sewage separating tank 5; when the water level is at the lowest water level, the single-pole double-throw switch 5211 in the water level travel switch 521 supplies power to the primary sewage pipe electromagnetic valve 53; when the water level is at the highest water level, the single-pole double-throw switch 5211 in the water level travel switch 521 supplies power to the delay power supply device, and power is supplied to the secondary sewage drainage pump 57 after the delay Te time; the time from the lowest water level to the highest water level is Td, the time from the highest water level to the lowest water level of the secondary sewage pump 57 is Tf, and after the Td, the Te and the Tf, the process is repeated, wherein the period Tco is Td + Te + Tf, Tc is nTco, n is an integer, and n is more than or equal to 1 and less than or equal to 3;
the water level switch 522 controls power supply, the water level switch 522 controls power supply to the bidirectional water pipe electromagnetic valve 58 according to the water level, when the water level rises above a certain position, the water level switch 522 supplies power to the bidirectional water pipe electromagnetic valve, and the bidirectional water pipe electromagnetic valve 58 closes the clear water return pipe 59 and opens the sewage discharge pipe 50; when the water level drops below a certain level, the water level switch 522 stops supplying power to the bidirectional water pipe solenoid valve 58, and the bidirectional water pipe solenoid valve 58 opens the clean water return pipe 59 and closes the sewage discharge pipe 50. It can be understood that the device for removing fish feces and fish food residues in the water of the fishpond is controlled by the water level switch 522, the timing power supply device, the delay power supply device and the like, and the device is automatically operated after the first installation and debugging, so that the workload of fishermen can be reduced.
According to the device for removing fish dung and fish food residues in fishpond water, disclosed by the embodiment of the invention, the Venturi oxygen explosion device 2, the primary sewage discharger 3, the secondary sewage separation barrel 5 and the floating filter screen 6 are arranged, so that the Venturi oxygen explosion device 2 can rotate pond water and increase the oxygen content in the water; according to the characteristic that the granular fish dung and fish food residues are deposited at the bottom of the pond and the tea cup theory in hydrodynamics, the fish pond 1 is arranged into a circular pond, water in the pond directionally rotates, so that the fish dung and fish food residues deposited at the bottom of the pond are concentrated at the center of the bottom of the fish pond, floaters are collected on the water surface at the edge of the fish pond, the fish dung and fish food residues concentrated at the center of the bottom of the fish pond are sucked into a secondary dirt separation barrel 5, the fish dung and fish food residues are concentrated at the center of the bottom of the separation barrel by the secondary dirt separation barrel 5, the fish dung and fish food residues at the center of the bottom of the barrel are discharged firstly by the secondary dirt separation barrel 5, and the residual relatively clean pond water flows back to the fish pond before the water quality is polluted by fermentation, the fish dung and fish food residues are timely discharged out of the fish pond 1, the water quality is ensured to be kept for a long time, and the high cost phenomenon that the whole pond water is replaced for cleaning is avoided, meanwhile, the fish can be cultured in high density, and the quality of the fish is improved due to the directional flow of water. In addition, only a small amount of pond water is discharged when the fish manure and fish food residues are removed, so that the energy consumption is low.
In some embodiments of the present invention, as shown in fig. 6-11, the main barrel 51 is a straight barrel with the same radius and the opening of the main barrel 51 is vertically upward, the opening of the main barrel 51 is along the same horizontal plane with the top of the fishpond 1, the water level pipe 52 is fixedly arranged on the outer side of the vertical wall, the water level pipe 52 is vertically arranged, the main barrel 51 is communicated with the bottom waterway of the water level pipe 52, the barrel wall where the main barrel 51 is communicated with the bottom waterway of the water level pipe 52 is still a circular wall with the same radius, the outer side of the bottom of the main barrel 51 is a plane, the center of the bottom of the main barrel 51 is provided with the sewage discharge hole 56, the inner side surface of the bottom of the main barrel 51 is an inclined bucket surface, the thickness of the bottom 561 of the main barrel 51 is larger than that of the edge 562 of the sewage discharge hole 56, the bottom of the primary sewage inlet pipe 33 is tangentially connected with the barrel wall, the main barrel 51 and the main barrel 51 is connected with the primary sewage inlet pipe 33, the diameter of the primary, wherein, the first-level sewage inlet pipe 33 is communicated with the first-level sewage pipe 322 by a water way;
the secondary blowdown device 55 includes:
the secondary sewage discharge grid 551 is a second disc, the upper and lower second circular surfaces 550 of the second disc are both planes, a plurality of rectangular slotted holes 5501 are uniformly arranged in a side circle of the second circular surface 550 at intervals, the rectangular slotted holes 5501 are parallel to each other and are abutted against the side circle, all the rectangular slotted holes 5501 penetrate through the second disc in the thickness direction of the second disc, the secondary sewage discharge grid 551 is tightly and grounded and installed in the sewage discharge hole 56, and one second circular surface 550 of the second disc of the secondary sewage discharge grid 551 is exposed out of the bottom surface of the main barrel 51 and is level with the lowest bottom surface of the main barrel 51; and
the second-stage sewage discharge pipe 55, the second-stage sewage discharge pipe 55 includes a second-stage sewage collection bucket 552 and a second-stage sewage pipe 553, the periphery of the edge of the second-stage sewage collection bucket 552 is closely connected with the periphery of the second disc, the second-stage sewage pipe 553 extends from the bottom of the main barrel 51 to the top of the main barrel 51, the second-stage sewage pump 57 is connected to the middle of the second-stage sewage pipe 553, the second-stage sewage pipe 553 is connected with the two-way water pipe electromagnetic valve 58, two water outlets of the two-way water pipe electromagnetic valve 58 are respectively connected with the clean water return pipe 59 and the sewage discharge pipe 50, wherein the water outlets of the clean water return pipe 59 and the sewage discharge pipe 50.
An apparatus for discharging fish feces and fish food residues from pond water according to an embodiment of the present invention will be described with reference to fig. 1 to 12. It is to be understood that the following description is intended to be illustrative only, and is not intended to be in any way limiting.
Example one
The device for removing fish manure and fish food residues in fishpond water comprises a round fishpond 1, a Venturi aerator 2, a primary sewage discharger 3, an electric cabinet 4, a secondary sewage separation barrel 5 and a floating object filter screen 6. The structure is shown in fig. 1.
Specifically, the venturi aerator 2 comprises a venturi tube 20, an air inlet pipe 21, an electric water wheel 22 and an oxygen-enriched water outlet 23. The structure is shown in fig. 1 and 2.
The round fishpond 1 is characterized in that the pond walls from the mouth edge of the fishpond to the bottom of the fishpond are concentric circles, the radiuses are equal or are reduced gradually in a small amount, the bottom of the fishpond is a horizontal plane, a round hole sewage discharge outlet concentric with the bottom of the fishpond is arranged in the center of the bottom of the fishpond, the diameter of the round hole sewage discharge outlet is any value between 1000mm and 2000mm, the small amount of the round hole sewage discharge outlet is reduced gradually, the reduction amount is not limited, but the reduction amount is small, and if the radius of the pond wall of the fishpond mouth edge of the pond wall is 5 m, the radius.
When the Venturi oxygen explosion device 2 operates, water enters from the opening where the electric water wheel 22 is located, air enters from the air inlet pipe 21, and oxygen explosion water flows out from the oxygen explosion water outlet 23 at a high speed. The Venturi oxygen explosions 2 are arranged at the position, close to the water surface of the circular wall, of the circular fishpond 1, the air inlet pipe 21 is exposed out of the water surface, the number of the Venturi oxygen explosions 2 is arranged according to the volume of water in the fishpond, the circular arc intervals of every two adjacent Venturi oxygen explosions 2 are equal, the oxygen explosion water outlet 23 of each Venturi oxygen explosion 2 faces the water inlet of the electric water wheel 22 of the adjacent Venturi oxygen explosion 2 along the circular arc, the Venturi oxygen explosions 2 start to suck water from the water inlet of the electric water wheel 22, the water rushes out from the oxygen explosion water outlet 23 at high speed, according to the fluid mechanics principle, air is sucked from the air inlet pipe 21 and is mixed in the water rushed out at high speed, the water is enabled to flow along the wall of the fishpond, and after the Venturi oxygen explosions 2 operate simultaneously, the fishpond water is further enabled to rotate along the same direction (overlooking the bottom of the fishpond clockwise or anticlockwise. The fish dung and fish food residues deposited on the bottom of the pond are concentrated in the center of the bottom of the pond due to the rotation of the whole fish pond water, floaters are gathered on the water surface at the edge of the pond, and the fish dung and the fish food residues are separated from the pond water and are discharged out in a targeted manner through related devices and operation processes.
The floater filter screen 6 is arranged on the water surface at the edge of the fishpond, and the opening of the floater filter screen faces the direction opposite to the water flow direction, so that the unclean substances floating on the water surface are removed. The flow of the fishpond water can promote the fishes in the fishpond to flow ceaselessly, so that the vitality of the fish body is enhanced; the venturi aerator 2 increases the oxygen content of the water body and is beneficial to the growth of the fish.
Example two
The primary pollution discharge device 3 comprises a pollution discharge grid 31 and a pollution discharge pipe 32, and the structure of the primary pollution discharge device is shown in figure 3.
The sewage discharge grid 31 is a first disc, the diameter of the first disc is equal to the diameter of a circular hole sewage discharge outlet arranged at the center of the bottom of the pond, two first circular surfaces 311 of the first disc are both planes, a small circular hole 312 is formed in the center of the first circular surface 311, arc-shaped slotted holes 313 symmetrical along the radius are uniformly formed in the periphery of the small circular hole 312, all the arc-shaped slotted holes 313 penetrate through the first circular surface 311 of the first disc, and the structure of the sewage discharge grid is shown in fig. 4.
The sewage discharge pipe 32 comprises a sewage collection hopper 321 and a primary sewage pipe 322, the periphery of the edge of the sewage collection hopper 321 is tightly connected with the periphery of a first disc of the sewage discharge grid 31, the primary sewage discharger 3 is embedded into a sewage discharge outlet at the bottom of the fish pond, the circle center of the first disc of the sewage discharge grid 31 is consistent with that of the fish pond, a first round surface 311 of the first disc of the sewage discharge grid 31 is exposed out of the bottom surface of the fish pond and is level with the bottom surface of the fish pond, and the water pipe 322 extends out of the fish pond from the center of the fish pond and has the structure shown in fig. 1, fig. 3 and fig. 5.
The secondary dirt separation barrel 5 of the present invention comprises a main barrel 51, a water level pipe 52, a primary sewage inlet pipe 33, a primary sewage pipe solenoid valve 53, a secondary dirt discharging device 55, a secondary sewage discharging pump 57, a bidirectional water pipe solenoid valve 58, a clear water return pipe 59, and a sewage discharging pipe 50, and the structure thereof is shown in fig. 6.
The secondary sewage separation barrel (5) is arranged on the outer side of the wall of the fishpond and is internally provided with a highest water level line and a lowest water level line, the highest water level set by the secondary sewage separation barrel (5) is not higher than the horizontal plane of the fishpond, and the lowest water level set by the secondary sewage separation barrel (5) is not higher than the bottom surface of the fishpond; the main barrel 51 is a straight barrel with the opening vertically upward and the same radius, and the opening edge of the main barrel 51 is the same horizontal plane with the top of the fishpond dam; a water level pipe 52 is fixedly arranged on the outer side of the vertical wall, the water level pipe 52 is vertical, a water channel at the bottom of the main barrel 51 is communicated with a water channel at the bottom of the water level pipe 52, the wall of the main barrel 51 at the position where the water channel at the bottom of the main barrel 51 is communicated with the water channel at the bottom of the water level pipe 52 is still a circular wall with the same radius, the outer side of the bottom of the main barrel 51 is a plane, a sewage discharge hole 56 is arranged at the center of the bottom of the main barrel 51, the inner side surface of the bottom of the main barrel 51 is an inclined bucket surface, the position 561 of the bottom barrel wall is thicker than the edge 562 of the sewage discharge hole 56, the first-level sewage inlet pipe 33 is tangentially connected with the; the diameter of the main barrel 51 is larger than that of the first-stage sewage inlet pipe 33, the specific larger number of times is not limited, and only the larger number of times is required, for example, the diameter of the first-stage sewage inlet pipe 33 is 100mm, and the diameter of the main barrel 51 is 1100 mm; the primary sewage inlet pipe 33 is communicated with the primary sewage pipe 322 in a water way, and the primary sewage inlet pipe 33 is provided with a normally closed primary sewage pipe electromagnetic valve 53, and the structure of the electromagnetic valve is shown in fig. 6 and 7.
The secondary pollution discharge device 55 comprises a secondary pollution discharge grid 551 and a secondary pollution discharge pipe 55, wherein the secondary pollution discharge grid 551 is a second disc, two second circular surfaces 550 of the second disc are both planes, a plurality of rectangular slotted holes 5501 which are parallel to each other and abutted against the side circle are uniformly formed in the side circle of the second circular surface 550, and all the rectangular slotted holes 5501 penetrate through the second disc; the secondary sewage draining pipe 55 comprises a secondary sewage collecting bucket 552 and a secondary sewage pipe 553, the periphery of the edge of the secondary sewage collecting bucket 552 is tightly connected with the periphery of the second disc, a secondary sewage discharging grid 551 in the secondary sewage discharger 552 is tightly connected and installed in a sewage draining hole 56 arranged at the center of the bottom of the main barrel 51, a second circular surface 550 of the second disc is exposed out of the bottom surface of the main barrel 51 and is level with the lowest bottom surface of the main barrel 51, the secondary sewage pipe 553 is lifted from the bottom of the main barrel 51 to the opening direction of the main barrel 51, the secondary sewage draining pump 57 is connected to the middle of the secondary sewage pipe 553, the secondary sewage pipe 553 is connected with a bidirectional water pipe electromagnetic valve 58, two water outlets of the bidirectional water pipe electromagnetic valve 58 are respectively connected with a clean water return pipe 59 and a sewage discharging pipe 50, and the structure is shown in fig. 8 and.
When the water level in the main barrel 51 of the secondary sewage separation barrel 5 is at the lowest water level, the primary sewage pipe electromagnetic valve 53 is opened, sewage which is gathered in the center of the fish pond and contains a large amount of fish manure and fish food residues is flushed into the bottom of the secondary sewage separation barrel 5 through the primary sewage discharger 3 and the primary sewage inlet pipe 33 to drive the accumulated water in the secondary sewage separation barrel 5 to rotate, the fish manure and the fish food residues are gathered in the center of the bottom of the secondary sewage separation barrel 5 again, when the accumulated water in the secondary sewage separation barrel 5 reaches the highest water level, the primary sewage pipe electromagnetic valve 53 is closed, after the rotation of the accumulated water in the secondary sewage separation barrel 5 is gradually stopped, the secondary sewage discharge pump 57 is started, the bidirectional water pipe electromagnetic valve 58 closes the clear water return pipe 59 to open the sewage discharge pipe 50, and the fish manure and fish food residues gathered at the bottom of the secondary sewage separation barrel 5 are pumped and discharged through the secondary sewage discharge, discharging the sewage out of the fishpond through the sewage discharge pipe 50; after a large amount of fish manure and fish food residues are gradually discharged, the water level of the secondary sewage separation barrel 5 gradually drops, after the water level reaches a certain level, the bidirectional water pipe electromagnetic valve 58 opens the clear water return pipe 59 to close the sewage discharge pipe 50, the residual water in the secondary sewage separation barrel 5 has lower fish manure and fish food residue content, and the residual water returns to the fishpond from the clear water return pipe 59; the outlets of the clean water return pipe 59 and the sewage discharge pipe 50 are higher than the highest water level line of the secondary sewage separation barrel 5, so that the sewage in the fishpond is prevented from flowing out of the secondary sewage pipe 553 before reaching the highest water level line of the secondary sewage separation barrel 5 in the process of flushing the secondary sewage separation barrel 5. The above process is repeated.
EXAMPLE III
A water level travel switch SA1521 and a water level switch SA2522 are provided in the water level pipe 52, and the switch in the water level travel switch SA1521 is a single-pole double-throw switch 5211, and the structure thereof is shown in fig. 10.
The electric cabinet 4 comprises a timing power supply KT1, the timing power supply KT1 supplies power to the Venturi oxygen explosion device 2, the primary sewage pipe electromagnetic valve 53, the secondary sewage drainage pump 57 and the bidirectional water pipe electromagnetic valve 58 at regular time, and the timing power supply KT1, the water level travel switch SA1521 and the water level switch SA2522 establish corresponding logic relations with the power supplies of the Venturi oxygen explosion device 2, the primary sewage pipe electromagnetic valve 53, the secondary sewage drainage pump 57 and the bidirectional water pipe electromagnetic valve 58. The circuit principle is shown in fig. 11.
The timing power supply KT1 regularly supplies power to the power supply U1 of the Venturi oxygen explosion device 2 for Ta, after the power supply time Tb is stopped, the power supply time Tc is repeated for the power supply U2 of the integrated circuit comprising the primary sewage pipe electromagnetic valve 53, the secondary sewage drainage pump 57 and the bidirectional water pipe electromagnetic valve 58, and the cycle period T0 is Ta + Tb + Tc.
The number of the four Venturi oxygen detonators 2 which are simultaneously opened and the power supply opening time Ta are set on site in real time according to the volume of the fishpond water and the demand factor of the oxygen content of the fishpond water.
After the venturi aerator 2 stops working, the rotation of the fishpond water is gradually slowed down, the fishpond water tends to be calm after the power supply stopping time Tb, and the power supply of the comprehensive circuit U2 begins to be set on site according to the volume of the fishpond water.
In the Tc time period of the power supply U2 of the integrated circuit, the power supply is controlled by a water level travel switch SA1521, the water level travel switch SA1521 respectively supplies power to a first-level sewage pipe electromagnetic valve 53 or a delay power supply KT2 according to the highest water level or the lowest water level set by a second-level sewage separation barrel 5, and the highest water level set by the second-level sewage separation barrel 5 is not higher than the water level of the fishpond; the lowest water level set by the secondary sewage separation barrel 5 is not higher than the bottom surface of the fishpond; when the water level is lowest, a single-pole double-throw switch 5211 in the water level travel switch SA1521 supplies power U4 to the primary sewage pipe electromagnetic valve 53, the primary sewage pipe electromagnetic valve 53 is switched on, sewage accumulated in the center of the fishpond is flushed into the secondary sewage separating barrel 5, and the water level in the secondary sewage separating barrel 5 rises; when the water level is highest, a single-pole double-throw switch 5211 in the water level travel switch SA1521 supplies power to a delayed power supply KT2 to supply power U3, a primary sewage pipe electromagnetic valve 53 is closed, and the delayed power supply KT2 supplies power U5 to a secondary sewage drainage pump 57 after delaying Te; the time from the lowest water level to the highest water level is Td, the second-stage sewage pump 57 pumps and discharges the sewage from the highest water level to the lowest water level for a time Tf, and the process is repeated after Td, Te and Tf, wherein the period TC0 is Td + Te + Tf.
The water level switch SA2522 controls the power supply to the bidirectional water pipe electromagnetic valve 58, when the water level is above a certain set position, the water level switch SA2522 supplies power U6 to the bidirectional water pipe electromagnetic valve 58, and the bidirectional water pipe electromagnetic valve 58 closes the clear water return pipe 59 and opens the sewage discharge pipe 50; when the water level is below a certain set position, the water level switch SA2522 stops supplying power to the bidirectional water pipe solenoid valve 58, and the bidirectional water pipe solenoid valve 58 opens the clean water return pipe 59 and closes the sewage discharge pipe 50.
During the Tc time period of the power supply U2 for the integrated circuit, n periods Tco of low water level, high water level and low water level are passed, Tc is nTco, and the value of the multiple n is set on site from an integer value between 1 and 3 according to the stocking density.
Although the terms venturi aerator, aeration water outlet, sewage outlet grid, sewage drainer, primary sewage pipe solenoid valve, secondary sewage separation barrel, floating filter, bidirectional water pipe solenoid valve, water level travel switch, secondary sewage drain pump, clean water return pipe, sewage drain pipe, round barrel, etc. are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and they are to be interpreted as any additional limitation which is not in accordance with the spirit of the present invention.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (2)

1. A device for removing fish feces and fish food residues in fishpond water is characterized by comprising:
the fishpond comprises a fishpond (1), wherein the fishpond (1) is formed into a circular shape, the inner peripheral wall of the fishpond (1) is concentric circles from the top of the fishpond (1) to the bottom of the fishpond (1), the radiuses of the fishpond (1) are equal or the radiuses of partial positions are gradually reduced in the direction from the top of the fishpond (1) to the bottom of the fishpond (1), the inner bottom wall of the fishpond (1) is a horizontal plane, a circular hole sewage discharge outlet concentric with the bottom wall of the fishpond (1) is formed in the center of the bottom wall of the fishpond (1), and the diameter of the circular hole sewage discharge outlet is between 1000mm and 2000 mm;
the device comprises venturi oxygen explosions (2), wherein each venturi oxygen explosions (2) is provided with a venturi tube, an air inlet pipe (21), an electric water wheel (22) and an oxygen explosion water outlet (23), each venturi oxygen explosions (2) is arranged below the water surface of the adjacent round wall of the fishpond (1), the air inlet pipes (21) are exposed out of the water surface, the circular arc distances of every two adjacent venturi oxygen explosions (2) are equal, and the oxygen explosion water outlet (23) of each venturi oxygen explosions (2) faces to the water inlet where the electric water wheel (22) of the adjacent venturi oxygen explosions (2) is located along the circular arc;
a primary trapper (3), the primary trapper (3) comprising: the sewage discharge device comprises a sewage discharge grid (31) and a sewage discharge pipe (32), wherein the sewage discharge grid (31) is a first disc, the diameter of the first disc is equal to that of the circular hole sewage discharge outlet, two first circular surfaces (311) of the first disc are both planes, a small circular hole (312) is formed in the center of each first circular surface (311), arc-shaped slotted holes (313) symmetrical along the radius are uniformly formed in the periphery of each small circular hole (312), and each arc-shaped slotted hole (313) penetrates through the first disc in the thickness direction of the first disc; the sewage discharge pipe (32) comprises a sewage collection bucket (321) and a primary sewage pipe (322), the periphery of the edge of the sewage collection bucket (321) is tightly connected with the periphery of the sewage discharge grid (31), the primary sewage discharger (3) is buried in the bottom of the fish pond (1), the sewage discharge grid (31) is positioned at the sewage discharge outlet, the circle center of a first disc of the sewage discharge grid (31) is consistent with that of the fish pond (1), a first round surface (311) of a first disc of the sewage discharge grid (31) is exposed out of the bottom surface of the fish pond (1) and is level with the bottom surface of the fish pond (1), and the primary sewage pipe (322) extends to the outer side of the fish pond (1) from the center of the bottom surface under the fish pond (1);
second grade filth separation bucket (5), second grade filth separation bucket (5) include: the device comprises a main barrel (51), a water level pipe (52), a primary sewage inlet pipe (33), a primary sewage pipe electromagnetic valve (53), a secondary sewage discharger (55), a secondary sewage discharge pump (57), a bidirectional water pipe electromagnetic valve (58), a clear water return pipe (59) and a sewage discharge pipe (50), wherein the secondary sewage separation barrel (5) is arranged on the outer side of the wall of the fish pond (1); the secondary sewage separation barrel (5) is provided with a highest water level line and a lowest water level line, the highest water level is not higher than the horizontal plane of the fish pond (1), the lowest water level is not higher than the bottom surface of the fish pond (1), and the primary sewage pipe electromagnetic valve (53) is a normally closed electromagnetic valve;
a water level travel switch (521) and a water level switch (522), both of the water level travel switch (521) and the water level switch (522) are disposed in the water level pipe (52), a switch of the water level travel switch (521) is a single-pole double-throw switch (5211), a highest trigger point of the water level travel switch (521) is aligned with the highest water level line of the secondary dirt separation tub (5), and a lowest trigger point of the water level travel switch (521) is aligned with the lowest water level line of the secondary dirt separation tub (5);
the floater filtering net (6) is arranged on the water surface at the edge of the fish pond (1), and the opening of the floater filtering net (6) faces to the direction opposite to the water flow direction;
the electric cabinet (4) comprises a timing power supply device, the timing power supply device supplies power to the Venturi aerator (2), the primary sewage pipe electromagnetic valve (53), the secondary sewage drainage pump (57) and the bidirectional water pipe electromagnetic valve (58) at regular time, the timing power supply device, the water level travel switch (521), the water level switch (522) and the power supplies of the Venturi aerator (2), the primary sewage pipe electromagnetic valve (53), the secondary sewage drainage pump (57) and the bidirectional water pipe electromagnetic valve (58) establish corresponding logic relations, and the logic relations comprise:
the timing power supply device supplies power to the four Venturi oxygen explosion devices (2) at regular time, the power supply time is Ta, after the power supply time is stopped, the power supply device supplies power to an integrated circuit comprising a primary sewage pipe electromagnetic valve (53), a secondary sewage drainage pump (57) and a bidirectional water pipe electromagnetic valve (58), the power supply time is Tc, the process is repeated after three periods of time of Ta, Tb and Tc, and the cycle period T0 is Ta + Tb + Tc;
wherein, during a Tc period of powering the integrated circuit:
controlling a power supply by the water level travel switch (521): the water level travel switch (521) respectively supplies power to the primary sewage pipe electromagnetic valve (53) or the time-delay power supply according to the highest water level or the lowest water level set by the secondary sewage separating barrel (5); when the water level is at the lowest water level, a single-pole double-throw switch (5211) in the water level travel switch (521) supplies power to the primary sewer electromagnetic valve (53); when the water level is at the highest water level, the single-pole double-throw switch (5211) in the water level travel switch (521) supplies power to the delay power supply, and after the delay Te time, the power is supplied to the secondary sewage drainage pump (57); the time from the lowest water level to the highest water level is Td, the time from the highest water level to the lowest water level of the secondary sewage pump (57) is Tf, and after the Td, the Te and the Tf, the process is repeated, wherein the period Tco is Td + Te + Tf, Tc is nTco, n is an integer, and n is more than or equal to 1 and less than or equal to 3;
the water level switch (522) controls power supply, the water level switch (522) controls power supply to the bidirectional water pipe electromagnetic valve (58) according to the water level, when the water level rises to a certain position, the water level switch (522) supplies power to the bidirectional water pipe electromagnetic valve, and the bidirectional water pipe electromagnetic valve (58) closes the clear water return pipe (59) and opens the sewage discharge pipe (50); when the water level is reduced to be below a certain position, the water level switch (522) stops supplying power to the bidirectional water pipe electromagnetic valve (58), and the bidirectional water pipe electromagnetic valve (58) opens the clean water return pipe (59) and closes the sewage discharge pipe (50).
2. The device for removing fish feces and fish food residues from fish pond water according to claim 1, wherein the main barrel (51) is a straight barrel with the same radius and an opening vertically upward, the opening of the main barrel (51) is along the same horizontal plane with the dam crest of the fish pond (1), a water level pipe (52) is fixedly arranged outside the vertical wall, the water level pipe (52) is vertically arranged, the main barrel (51) is communicated with the bottom waterway of the water level pipe (52), the barrel wall of the communication part of the main barrel (51) and the bottom waterway of the water level pipe (52) is still a circular wall with the same radius, the outside of the bottom of the main barrel (51) is a plane, a sewage discharge hole (56) is arranged in the center of the bottom of the main barrel (51), the inner side surface of the bottom of the main barrel (51) is an inclined bucket surface, and the thickness of the bottom of the barrel wall (561) of the main barrel (51) is greater than the thickness of the edge (562) of the sewage discharge hole (56), the primary sewage inlet pipe (33) is tangentially connected with the barrel wall at the bottom of the barrel wall, the diameters of a connecting port (54) and a tangent point (541) of the main barrel (51) and the primary sewage inlet pipe (33) are larger than that of the primary sewage inlet pipe (33), the barrel wall of the connecting port (54) on the barrel wall of the main barrel (51) is a circular wall with the same radius, and the primary sewage inlet pipe (33) is communicated with the primary sewage pipe (322) through a water path;
the secondary blowdown apparatus (55) comprises:
the secondary sewage discharge gate (551) is a second disc, the upper and lower second circular surfaces (550) of the second disc are both planes, a plurality of rectangular slotted holes (5501) are uniformly arranged in the edge circle of the second circular surface (550) at intervals, the rectangular slotted holes (5501) are parallel to each other and are abutted against the edge circle, all the rectangular slotted holes (5501) penetrate through the second disc in the thickness direction of the second disc, the secondary sewage discharge gate (551) is installed in the sewage discharge hole (56) in a tightly jointed manner, and one second circular surface (550) of the second disc of the secondary sewage discharge gate (551) is exposed out of the bottom surface of the main barrel (51) and is level with the lowest bottom surface of the main barrel (51); and
second grade blow off pipe (55), second grade blow off pipe (55) include second grade collection sewage fill (552) and second grade sewer pipe (553), second grade collection sewage fill (552) bead all around with the second disc closely link up all around, second grade sewer pipe (553) by main bucket (51) bottom to main bucket (51) top direction extends, insert in the middle of second grade sewer pipe (553) second grade sewage dredge pump (57), second grade sewer pipe (553) with two-way water pipe solenoid valve (58) meet, two delivery ports of two-way water pipe solenoid valve (58) respectively with clear water back flow (59), sewage discharge pipe (50) link to each other, wherein, the delivery port of clear water back flow (59) and sewage discharge pipe (50) is higher than the highest water level line of second grade filth separation bucket (5).
CN202011025011.7A 2020-09-25 2020-09-25 Device for removing fish manure and fish food residues in fishpond water Active CN112136759B (en)

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