CN220703455U - Circulating water system for industrial cultivation - Google Patents
Circulating water system for industrial cultivation Download PDFInfo
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- CN220703455U CN220703455U CN202322018337.2U CN202322018337U CN220703455U CN 220703455 U CN220703455 U CN 220703455U CN 202322018337 U CN202322018337 U CN 202322018337U CN 220703455 U CN220703455 U CN 220703455U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 281
- 238000000926 separation method Methods 0.000 claims abstract description 76
- 239000006260 foam Substances 0.000 claims abstract description 61
- 239000010865 sewage Substances 0.000 claims abstract description 39
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 27
- 239000008213 purified water Substances 0.000 claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 239000002351 wastewater Substances 0.000 claims abstract description 14
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 29
- 239000002245 particle Substances 0.000 claims description 16
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- 230000001079 digestive effect Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N nitrous oxide Inorganic materials [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 claims description 2
- 238000005949 ozonolysis reaction Methods 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 10
- 238000000746 purification Methods 0.000 abstract description 6
- 239000012535 impurity Substances 0.000 description 20
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 12
- 239000001301 oxygen Substances 0.000 description 12
- 229910052760 oxygen Inorganic materials 0.000 description 12
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
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- 238000004062 sedimentation Methods 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 3
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 3
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- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
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- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The utility model provides a circulating water system for industrial cultivation, which is characterized in that waste water of a cultivation pond is subjected to first solid-liquid separation through a first separation component, purified water returns to the cultivation pond, tail water is discharged into a second separation component for secondary solid-liquid separation, obtained clean water enters a biochemical treatment module for disinfection and purification, obtained purified water is sent into a water supply module for being injected into the cultivation pond again, and waste water obtained through secondary solid-liquid separation and foam obtained in the disinfection and purification process are discharged into a sewage collection module, so that the waste water is effectively disinfected and purified, recycled, and water resources are saved. And the height design between each module is ingenious, so that the main power of the whole water circulation realizes the pushing of water flow through the water level difference between each module, the energy consumption in the water circulation is greatly reduced, and the cultivation cost is effectively reduced.
Description
Technical Field
The utility model relates to the technical field of water circulation, in particular to a circulating water system for industrial cultivation.
Background
The existing industrial cultivation has the advantages of high cultivation density, small occupied area, small influence of natural environment, water resource saving, no pollution to ecological environment, less plant diseases and insect pests, high input and output and the like. However, due to its high cultivation density, the fish discharges a lot of feces after eating, resulting in a faster deterioration of water quality, and if the cultivation water is not purified rapidly, the fish will get ill or die.
For example, CN110679534a discloses a high-density circulating water culture treatment system, which comprises an ultraviolet sterilizer, a cyclone filter, a thermostat, an oxygenerator, an oxygen dissolving cone, a roller microfilter, an oxygen dissolving pump, a balancing tank, a degassing pump, a circulating pump, a protein separator, an ozone machine, a device fan, a biological filter and a degassing sterilization processor, has a lot of devices, has high purchase cost, is continuously operated after being put into use, and is operated at full load, the excretion amount of fish is small before fish feeding and at night, the pollutant in the water body is less, if the operation is carried out at full load all day, the energy consumption is quite high, the economic benefit of farmers is greatly reduced and even the situation of loss occurs, so that circulating water culture is not promoted and popularized on a large scale.
In view of this, how to reduce the energy consumption required for the water circulation of industrial cultivation is a technical problem to be solved in the art.
Disclosure of Invention
The utility model aims to provide a circulating water system for industrial cultivation.
The utility model aims to solve the problem of high energy consumption of the existing water circulation system.
In order to solve the problems, the utility model is realized by the following technical scheme:
a circulating water system for industrial farming, comprising:
the bottom of the culture pond is provided with a sewage collecting disc, and the sewage collecting disc is provided with a sewage outlet;
the first separation component is connected with the sewage outlet, and is used for carrying out solid-liquid separation on the wastewater discharged from the culture pond for one time to obtain purified water and tail water, and the purified water is discharged into the culture pond again;
the second separation component is connected with the first separation component, tail water discharged from the first separation component enters the second separation component and is subjected to secondary solid-liquid separation by the second separation component to obtain clean water and sewage; the top end of the second separation component is lower than the water level of the culture pond;
the biochemical treatment module is connected with the second separation assembly, and clean water discharged by the second separation assembly enters the biochemical treatment module for biochemical treatment to obtain purified water and foam; the water inlet of the biochemical treatment module is lower than the water outlet of the second separation assembly;
the water supply module is connected between the biochemical treatment module and the culture pond and is used for collecting purified water discharged by the biochemical treatment module and supplying water to the culture pond; the water inlet of the water supply module is lower than the water level of the biochemical treatment module, and the water outlet of the water supply module is higher than the water inlet of the culture pond;
the sewage collection module is respectively communicated with the second separation assembly and the biochemical treatment module, and sewage discharged by the second separation assembly and foam discharged by the biochemical treatment module are discharged into the sewage collection module.
Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:
(1) The wastewater of the culture pond is subjected to primary solid-liquid separation by the first separation component, purified water returns to the culture pond, tail water is discharged into the second separation component for secondary solid-liquid separation, the obtained clean water enters the biochemical treatment module for disinfection and purification, the obtained purified water is sent into the water supply module for being injected into the culture pond again, and the wastewater obtained by the secondary solid-liquid separation and foam obtained in the disinfection and purification process are discharged into the sewage collection module, so that the wastewater is effectively disinfected and purified, recycled from new, and water resources are saved. And the top of second separation subassembly is less than the water level height of breed pond, biochemical treatment module's water inlet is less than the delivery port of second separation subassembly, and water supply module's water inlet is less than biochemical treatment module's water level, and water supply module's delivery port is higher than the water inlet of breed pond, and then makes the main power of whole hydrologic cycle realize the promotion of rivers through the water head difference between each module, very big reduction the power consumption in the hydrologic cycle to effectively reduced the breed cost.
(2) In the sewage collecting process of the first separation assembly and the second separation assembly, only the dissolved air pump is an additional power source, the power for flowing other water flows is provided by the hydraulic pressure difference of the water level, and impurities are settled by gravity, so that the energy consumption is reduced.
(3) The foam separator provided by the utility model can play a better foam separation effect by separating foam in clear water in two stages, so that the foam in clear water treated by the separator is less, and the residual ozone is close to 0.
(4) The three-phase fluidized bed of the utility model conducts dirty water to the bottom of the inner cavity, meanwhile, biochemical filter particles are arranged at the bottom of the inner cavity, and then the bottom of the inner cavity is inflated (oxygen) so that the dirty water and the biochemical filter particles are driven by airflow to rise, and chemical reaction occurs in the rising process and the falling process after rising airflow is lost, thereby effectively realizing denitration and deamination, and clean water flow after denitration and deamination and solid-liquid separation is discharged out of the outer shell, and the biochemical filter particles participating in the chemical reaction return to the bottom of the inner cavity again for next circulation.
(5) According to the biochemical fixed bed, the bed body is not provided with a plurality of brushes, the specific surface area of the brushes is large, nitrifying bacteria can be well attached, so that water flow discharged by the three-phase internal circulating fluidized bed is subjected to denitration treatment again, and meanwhile, the brushes effectively adsorb and block floaters and adsorb impurities.
(6) The water supply module adopts the purified water flowing out of the biochemical fixed bed of the balance tank to collect and store, and after the purified water is gathered to a certain amount, the water pump is turned on to pump the purified water to the reservoir once, and the water pump does not need to continuously run, so that the water pump is protected and the energy consumption is saved.
(7) The water circulation system is used for efficiently treating the culture water body, and only small water level difference between the grid treatment modules is needed for water circulation to provide water flow power, so that the energy consumption is low, and the culture cost is greatly reduced.
Drawings
FIG. 1 is a process flow diagram of a circulating water system for industrial aquaculture provided by an embodiment of the utility model;
FIG. 2 is a block diagram of a first separation assembly provided in an embodiment of the present utility model;
FIG. 3 is a diagram showing the assembly relationship between a dissolved air pump and a standpipe provided by an embodiment of the present utility model;
FIG. 4 is a block diagram of a second separation assembly provided in an embodiment of the present utility model;
FIG. 5 is a block diagram of a foam separator provided in an embodiment of the present utility model;
FIG. 6 is a block diagram of a three-phase internal circulating fluidized bed provided by an embodiment of the present utility model;
FIG. 7 is a block diagram of a biochemical fixed bed provided by an embodiment of the present utility model;
fig. 8 is a water level comparison chart of each module provided by the embodiment of the utility model.
Illustration of:
a culture pond-10; a dirt collecting tray-11; a sewage outlet-12; a surface dirt collection assembly-13;
a settling tube-21; a four-way pipe-22; standpipe-23; draft tube-24; a drain pipe-25; transverse tube-251; vertical tube-252; a dissolved air pump-26; a tee-27;
a vertical flow precipitator-30, a vertical flow precipitator water inlet-31; a vertical flow precipitator water outlet-32; a tail water port of the vertical flow precipitator-33 and a drain pipe-34;
a foam separator-40; a sterilizing tube-41; an ozonolysis tube-42; an ozone bubble input mechanism-43; an air bubble input mechanism-44; foam collection cup-45; a water inlet-46; a water outlet-47;
a three-phase internal circulating fluidized bed-50; an outer case-51; an inner housing-52; an inner cavity-521; a partition plate-53; biochemically filtering particles-54; a water inlet member-55; an air supply member-56;
a biochemical fixed bed-60, a bed body-61; a brush-62; a fixed bed water inlet-63; and a fixed bed water outlet-64.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1, a circulating water system for industrial cultivation includes a cultivation pond 10, a first separation assembly, a second separation assembly, a biochemical treatment module, a water supply module, and a sewage collection module. The bottom of the culture pond 10 is provided with a sewage collecting disc 11, and the sewage collecting disc 11 is provided with a sewage outlet 12. The first separation assembly is connected with the sewage outlet 12, and performs solid-liquid separation on the wastewater discharged from the culture pond 10 once to obtain purified water and tail water, and the purified water is discharged into the culture pond 10 again. The second separation assembly is connected with the first separation assembly, tail water discharged from the first separation assembly enters the second separation assembly, and clear water (clean relative to waste water) and waste water are obtained through secondary solid-liquid separation of the second separation assembly. The biochemical treatment module is connected with the second separation assembly, and clean water discharged by the second separation assembly enters the biochemical treatment module for biochemical treatment to obtain purified water and foam. The sewage collecting module is respectively communicated with the second separation assembly and the biochemical treatment module, and sewage discharged by the second separation assembly and foam discharged by the biochemical treatment module are discharged into the sewage collecting module. The water supply module is connected between the biochemical treatment module and the culture pond 10, and is used for collecting purified water discharged by the biochemical treatment module and supplying water to the culture pond 10.
The waste water of breed pond 10 goes through the primary solid-liquid separation of first separation subassembly, and the clean water returns to breed pond 10, and the tail water is discharged into second separation subassembly and is carried out secondary solid-liquid separation, and the clear water that obtains gets into biochemical treatment module and disinfects and purify, and the purified water that obtains is sent into water supply module and is in preparation for reinjection into breed pond 10, and the waste water that secondary solid-liquid separation obtained and the foam that obtains in the disinfection purification process then discharge into the dirt collection module to carry out effectual disinfection purification and follow new cycle to waste water and use, water economy resource. And, the top of second separation subassembly is less than the water level height of breed pond 10, biochemical treatment module's water inlet is less than the delivery port of second separation subassembly, and water supply module's water inlet is less than biochemical treatment module's water level, and water supply module's delivery port is higher than breed pond 10's water inlet, and then makes the main power of whole hydrologic cycle realize the promotion of rivers through the water head difference between each module, very big reduction the power consumption in the hydrologic cycle to effectively reduced the breed cost.
Referring to fig. 2 and 3, the first separation module includes a settling tube 21 connected to the drain 12, a four-way tube 22 connected to an end of the settling tube 21 remote from the drain 12, a standpipe 23 connected to an upper port of the four-way tube 22, a draft tube 24 connected to a lower port of the four-way tube 22, and a drain tube 25 connected to a side port of the four-way tube 22; the water flow of the vertical pipe 23 is conducted to the culture pond 10 through the dissolved air pump 26.
After the impurities such as residual baits and animal feces in the culture pond 10 are precipitated, the impurities are discharged into a settling tube 21 through a dirt collecting tray 11 at the bottom of the pond. The diameter of the sedimentation tube 21 is relatively large, and the water flow rate in the tube is controlled to be less than 0.3 m/s so as to be beneficial to sedimentation of impurities. The impurities heavier than water gradually settle to the bottom of the tube and flow while the water flows through the settling tube 21, and the impurities lighter than water flow at the upper part of the tube. When entering the four-way pipe 22, the impurity heavier than water sinks to the draft tube 24, and the impurity lighter than water floats to the upper end of the standpipe 23. When the water reaches the upper end of the standpipe 23, it is returned to the tank 10 by the dissolved air pump 26. Impurities heavier than water in the draft tube 24 flow through the vertical flow precipitator 30, the bottom valve of the vertical flow precipitator 30 is normally open, the collected impurities can be discharged in time, and the contact time of the impurities and the water is reduced, so that the dissolution amount of the impurities is reduced. The whole sewage collecting process is only provided with the dissolved air pump 26 as an additional power source, the power for flowing other water flows is provided by the hydraulic pressure difference of the water level, and the impurities are settled by means of gravity, so that the energy consumption is reduced.
The drain pipe 25 includes a horizontal pipe 251 and a vertical pipe 252, the horizontal pipe 251 is connected with the 22 four-way pipe, the horizontal height of the horizontal pipe 251 is lower than the water outlet of the sedimentation pipe 21, and the horizontal pipe 251 is detachably connected with the vertical pipe 252. When it is desired to clean the tank, vertical tube 252 is detached from transverse tube 251 so that the water flow exiting sedimentation tube 21 exits from the junction of vertical tube 252 and transverse tube 251.
In this embodiment, the water inlet end of the dissolved air pump 26 is further connected to one end of a three-way pipe 27, and the other two ends of the three-way pipe 27 are respectively connected to the air supply end and the pure oxygen/ozone/nitrogen supply end, and are respectively provided with a valve, and different gases can be added when different valves are opened.
Referring to fig. 4, the second separation assembly includes a vertical flow precipitator 30, a water inlet 31 of the vertical flow precipitator is connected with a draft tube 24, tail water with high impurity content enters the vertical flow precipitator 31, secondary solid-liquid separation of the vertical flow precipitator is performed, partial water with better water quality flows out from a water outlet 32 of the vertical flow precipitator to the biochemical treatment module, fixed impurities separated by the vertical flow precipitator are discharged from a tail water outlet 33 of the vertical flow precipitator, and the tail water outlet 33 of the vertical flow precipitator is normally opened, so that the precipitated impurities can be timely discharged, the contact time of the impurities and water is reduced, and the dissolution amount is reduced. The tail water port 33 of the vertical flow settler is connected with a sludge discharge pipe 34, the sludge discharge pipe 34 is provided with two outlets after being turned upwards, the lower outlet is provided with a manual valve, and the manual valve is normally closed and is opened only when the sludge discharge pipe is cleaned; the other upper outlet is normally open and is matched with water level adjustment, so that the sludge separating and discharging function is continuously operated, and the sludge is discharged into the sludge collecting module.
Referring to fig. 5, the biochemical treatment module includes a foam separator 40 and a biochemical bed. The foam separator 40 includes a sterilizing tube 41 and an ozone decomposing tube 42, the sterilizing tube 41 being communicated with the bottom of the ozone decomposing tube 42; the bottom of the disinfection tube 41 is provided with an ozone bubble input mechanism 43, the bottom of the ozone decomposition tube 42 is provided with an air bubble input mechanism 44, the tops of the disinfection tube 41 and the ozone decomposition tube 42 are both provided with foam collecting cavities, the top of the disinfection tube 41 is provided with a water inlet 46, the height of the disinfection tube is lower than that of the foam collecting cavities, and the foam collecting cavities are connected with a blow-down pipe for discharging foam; the ozone decomposing tube 42 is provided with a water outlet 47, which is lower than the foam collecting chamber.
Clean water discharged from a water outlet of the vertical flow precipitator enters the disinfection tube 41 from a water inlet 46 of the foam separator 40, clean water flow pumped by ozone and air by the ozone bubble input mechanism 43 enters the disinfection tube 41, the dense ozone-rich water flow is fully mixed with the clean water in the disinfection tube 41 to be disinfected, (at the moment, foam in the clean water can be driven to be carried up due to light upward floating of the density of the bubbles, the foam is fed into a foam collecting cavity on the disinfection tube 41, the foam can only be extruded into a foam collecting cup 45 and then discharged through a drain pipe along with the gradual filling of the collecting cavity),
the sewage discharged from the culture pond 10 is introduced into the disinfection tube 41, at this time, the ozone bubble input mechanism 43 works to draw in clean water flow mixed with ozone and air into the disinfection tube 41, the dense ozone-rich water flow is fully mixed with the sewage in the disinfection tube 41, so that disinfection can be performed, (at this time, the bubbles in the sewage can be driven to be carried up due to light upward floating of the bubble density, and then the bubbles are sent into the foam collecting cavity on the disinfection tube 41, and along with the gradual filling of the collecting cavity, the foam can only be extruded into the foam collecting cup 45 and then discharged to the sewage collecting module through the sewage discharging tube). The disinfected sewage enters the ozone decomposing tube 42 through the arc-shaped connecting part, the ozone decomposing tube 42 pumps water flow rich in air bubbles through the air bubble input mechanism 44, bubbles in the water flow are fully contacted with clean water, the residual undigested ozone in the disinfected clean water can be decomposed, the ozone residual in the clean water is reduced (rising bubbles can further take away residual foam in the water flow to float, the residual foam is concentrated in a foam collecting cavity of the ozone decomposing tube 42, the foam is gradually accumulated to exceed the storage capacity of the collecting cavity, the foam can be extruded into the foam collecting cup 45 therein and then discharged to a sewage collecting module through a sewage draining tube, and then the digested bacteria in a subsequent fluidized bed are prevented from being killed by ozone. The foam in the clean water is separated in two stages, so that a better foam separation effect can be achieved, the foam of the clean water treated by the separator is less, and the residual ozone is close to 0.
In this embodiment, the top side of the culture pond 10 is further provided with a surface dirt collecting assembly 13 for controlling the water level of the culture pond 10 and discharging foam impurities on the surface of the culture pond 10, and the water outlet of the surface dirt collecting assembly 13 is communicated with the water inlet of the foam separator 40.
Referring to fig. 6, the biochemical bed includes a three-phase internal circulating fluidized bed 50, and the three-phase internal circulating fluidized bed 50 includes an outer case 51 having an opening at an upper end thereof, an inner housing 52 provided in the outer case 51, a partition plate 53 provided around an upper end circumference of the inner housing 52, a water inlet member 55 for conducting the inner housing 52, and an air supply member 56. The air supply member 56 of the present embodiment may employ a dissolved air pump.
The upper end of the partition plate 53 is higher Yu Shu than the opening of the outer case 51, and the lower end of the partition plate 53 is lower than the upper end of the inner case 52; the top and bottom ends of the inner cover 52 are both in communication with the outer housing 51; the bottom of the inner cover 52 is provided with biochemical filter particles 54, and outlets of the water inlet member 55 and the air supply member 56 extend into the biochemical filter particles 54, and a water outlet of the foam separator 40 is connected with the water inlet member 55 of the three-phase internal circulating fluidized bed 50. Wherein, the biochemical filter particles 54 are attached with digestive bacteria, nitrous bacteria, nitric bacteria and denitrifying bacteria.
The clean water after ozone sterilization and foam separation is discharged from the foam separator 40 and is introduced from the outside into the region where the biochemical filtration particles 54 are deposited in the inner chamber 521 by the water supply member, and simultaneously the gas supply member 56 is connected to the gas supply terminal to introduce the desired gas into the region where the biochemical filtration particles 54 are deposited in the inner chamber 521. In this embodiment, the introduced gas is oxygen or air having a high oxygen content.
When the air supply member 56 supplies air, an upward air flow is generated, and the upward air flow drives the biochemical filtering particles 54 to rise along with the water flow in the inner cavity 521, and the water flow at the bottom and the middle part (area a) of the inner cavity 521 is an oxygen-enriched area due to the fact that more oxygen is dissolved in the water flow, so that the following chemical reaction is generated: the first step, organic matters are decomposed and digestive bacteria participate to generate carbon dioxide which is dissolved in water to form carbonic acid, so that the pH value and H of water flow are reduced 2 O+CO 2 →H 2 CO 3 The method comprises the steps of carrying out a first treatment on the surface of the Secondly, ammonia reacts with oxygen to obtain water and nitrite, and nitrite participates in 4NH 3 +7O 2 →4NO 2 +6H 2 O; thirdly, nitrite reacts with oxygen to obtain nitrate radical, nitrate is participated in, 2NO 2 +O 2 →2NO 3 。
The water flow gradually goes to the top of the inner cover 52 under the driving of the air flow, flows out from the top to the region B, is pushed by the water flow which continuously rises towards the edge of the inner cover 52 until the driving of the rising air flow is lost, the biochemical filtering particles 54 start to sink, go to the oxygen-deficient downflow region C, the water flow turns upwards to the solid-liquid separation region D, flows out from the opening of the outer shell 51, and the solid continuously descends, and in the embodiment, the upper end part of the outer shell 51 is provided with a triangular weir. Because the zone B and the zone C have NO oxygen supply and are biologically aerobic, nitrate and organic carbon are subjected to denitration reaction, and the denitration bacteria participate in 2NO 3 +organic carbon → N 2 ↑+3CO 2 And ∈, forming a nitrogen discharge accommodating cavity, and realizing deamination and denitration. Biochemical filtrationThe particles 54 settle from C to the bottom of the outer casing 51 and return to the area where the biochemical filter particles 54 are deposited through the gap between the bottom of the outer casing 51 and the lower end of the inner casing 52, completing a cycle, it being understood that the gap between the bottom of the outer casing 51 and the lower end of the inner casing 52 is larger than the outer diameter of the biochemical filter particles 54.
Referring to fig. 7, the biochemical bed further comprises a biochemical fixed bed 60, the biochemical fixed bed 60 comprises a bed body 61 and a plurality of hairbrushes 62 vertically arranged in the inner cavity of the bed body 61, and a water inlet and a water outlet are arranged on the bed body 61. When water flow subjected to denitration and deamination of the three-phase internal circulating fluidized bed 50 enters the bed body 61 from the water inlet, the water flow is adsorbed and blocked by the hairbrush 62 to adsorb floaters and impurities, so that the water quality is further purified and improved; meanwhile, the brush 62 has a large specific surface area, so that more nitrifying bacteria can be effectively attached, and the water flow is further subjected to denitration. The arrangement of the fixed bed water inlet 63 and the fixed bed water outlet 64 can be flexible and changeable, so that the water flow passing through the biochemical fixed bed 60 can have various flow directions, such as up-in-down-out or down-in-up-out, in order that the water flow can flow through more brushes 62 as much as possible, the biochemical fixed bed water inlet 63 and the fixed bed water outlet 64 of the embodiment are arranged in a diagonal manner, the fixed bed water inlet 63 is positioned at the upper end of the side wall of the bed body 61, and the water outlet is positioned at the lower end of the side wall of the bed body 61 and positioned on the diagonal of the bed body 61.
Referring to fig. 8, purified water flowing out of the biochemical fixed bed 60 enters a water supply module, and in particular, the water supply module comprises a balancing tank and a constant temperature reservoir, wherein a water inlet of the balancing tank is connected with a water outlet 64 of the biochemical fixed bed 60, the balancing tank is connected with the constant temperature reservoir through a water pump, a water outlet of the constant temperature reservoir is higher than a water inlet of the culture pond 10, and as long as the water level of the balancing tank is lower than that of the biochemical fixed bed 60, purified water is continuously fed into the balancing tank from the biochemical fixed bed 60, and the water level of the balancing tank is far lower than that of the reservoir, so that purified water flowing out of the biochemical fixed bed 60 of the balancing tank is collected and stored, and after the purified water is collected to a certain amount, the water pump is turned on to be pumped into the reservoir at one time without continuous operation of the water pump, thereby protecting and saving energy consumption of the water pump. In this embodiment, a dissolved air pump is also provided at the water outlet of the reservoir to adjust the oxygen content of the water flow fed into the aquarium 10.
Specifically, in the circulation process, the water outlet of the reservoir is higher than the top end of the culture pond 10, the water level of the culture pond 10 is higher than the water outlet of the vertical flow precipitator, the water outlet of the vertical flow precipitator is higher than the water inlet of the foam separator 40, the water outlet of the foam separator 40 is higher than the water level of the three-phase internal circulation biochemical bed (the water outlet of the three-phase internal circulation biochemical bed), the water outlet of the three-phase internal circulation biochemical bed is higher than the water inlet of the biochemical fixed bed 60, and the water level of the biochemical fixed bed 60 is higher than the water level of the balance pond.
The water circulation system is used for efficiently treating the culture water body, and only small water level difference between the grid treatment modules is needed for water circulation to provide water flow power, so that the energy consumption is low, and the culture cost is greatly reduced.
While the foregoing description illustrates and describes the preferred embodiments of the present utility model, it is to be understood that the utility model is not limited to the forms disclosed herein, but is not to be construed as limited to other embodiments, but is capable of use in various other combinations, modifications and environments and is capable of changes or modifications within the scope of the inventive concept, either as described above or as a matter of skill or knowledge in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the utility model are intended to be within the scope of the appended claims.
Claims (10)
1. The circulating water system for industrial cultivation is characterized by comprising:
the bottom of the culture pond is provided with a sewage collecting disc, and the sewage collecting disc is provided with a sewage outlet;
the first separation component is connected with the sewage outlet, and is used for carrying out solid-liquid separation on the wastewater discharged from the culture pond for one time to obtain purified water and tail water, and the purified water is discharged into the culture pond again;
the second separation component is connected with the first separation component, tail water discharged from the first separation component enters the second separation component and is subjected to secondary solid-liquid separation by the second separation component to obtain clean water and sewage; the top end of the second separation component is lower than the water level of the culture pond;
the biochemical treatment module is connected with the second separation assembly, and clean water discharged by the second separation assembly enters the biochemical treatment module for biochemical treatment to obtain purified water and foam; the water inlet of the biochemical treatment module is lower than the water outlet of the second separation assembly;
the water supply module is connected between the biochemical treatment module and the culture pond and is used for collecting purified water discharged by the biochemical treatment module and supplying water to the culture pond; the water inlet of the water supply module is lower than the water level of the biochemical treatment module, and the water outlet of the water supply module is higher than the water inlet of the culture pond;
the sewage collection module is respectively communicated with the second separation assembly and the biochemical treatment module, and sewage discharged by the second separation assembly and foam discharged by the biochemical treatment module are discharged into the sewage collection module.
2. The circulating water system for industrial aquaculture according to claim 1, wherein the first separation assembly comprises a settling leg connected to the drain, a four-way pipe connected to an end of the settling leg remote from the drain, a standpipe connected to an upper port of the four-way pipe, a draft tube connected to a lower port of the four-way pipe, and a drain pipe connected to a side port of the four-way pipe; and the water flow of the vertical pipe is conducted to the culture pond through the dissolved air pump.
3. The circulating water system for industrial aquaculture of claim 1, wherein the second separation assembly comprises a vertical flow settler, the vertical flow settler water inlet flows into the tail water, and the bottom of the vertical flow settler is normally open and connected with the sewage collection module; and the water outlet of the vertical flow precipitator is connected with the biochemical treatment module.
4. The circulating water system for industrial aquaculture according to claim 1, wherein the biochemical treatment module comprises a foam separator and a biochemical bed, the water inlet of the foam separator is connected with the water outlet of the second separation assembly, the foam separator separates and discharges foam in clear water, and the water outlet of the foam separator is connected with the biochemical bed.
5. The circulating water system for industrial aquaculture of claim 4, wherein the foam separator comprises a disinfection tube and an ozone decomposition tube, the disinfection tube and the ozone decomposition tube being in communication at their bottoms; the bottom of the disinfection tube is provided with an ozone bubble input mechanism, the bottom of the ozone decomposition tube is provided with an air bubble input mechanism, foam collecting cavities are formed in the top of the disinfection tube and the top of the ozone decomposition tube, the top of the disinfection tube is provided with a water inlet, the height of the disinfection tube is lower than that of the foam collecting cavities, the foam collecting cavities are connected with foam collecting cups, and the foam collecting cups are communicated with the sewage collecting module through pipelines; the ozonolysis pipe is provided with a water outlet and is lower than the foam collecting cavity.
6. The circulating water system for industrial aquaculture according to claim 4, wherein the biochemical bed comprises a three-phase internal circulating fluidized bed, the three-phase internal circulating fluidized bed comprises an outer shell with an opening at the upper end, an inner cover arranged in the outer shell, a partition plate arranged around the upper end of the inner cover, a water inlet piece for conducting the inner cover and a gas supply piece;
the upper end part of the partition plate is higher than the opening of the outer shell, and the lower end part of the partition plate is lower than the upper end part of the inner cover; the top end and the bottom end of the inner cover body are communicated with the outer cover body; the bottom of the inner cover body is provided with biochemical filtering particles, outlets of the water inlet piece and the air supply piece extend into the space between the biochemical filtering particles, and a water outlet of the foam separator is connected with the water inlet piece of the three-phase internal circulating fluidized bed.
7. The circulating water system for industrial aquaculture of claim 6, wherein the biochemical filter particles are attached with digestive bacteria, nitrous bacteria, nitric bacteria and denitrifying bacteria.
8. The circulating water system for industrial aquaculture according to claim 4, wherein the biochemical bed further comprises a biochemical fixed bed, the biochemical fixed bed comprises a bed body and a plurality of brushes vertically arranged in the inner cavity of the bed body, a water inlet or a water outlet is arranged at the upper end of the bed body, and a water outlet or a water inlet is arranged at the lower end of the bed body.
9. The circulating water system for industrial aquaculture of claim 4, wherein the water inlet and the water outlet are diagonally arranged.
10. The circulating water system for industrial aquaculture according to claim 1, wherein the water supply module comprises a balancing tank and a constant temperature reservoir, the water inlet of the balancing tank is connected with the water outlet of the biochemical treatment module, the balancing tank is connected with the constant temperature reservoir through a water pump, and the water outlet of the constant temperature reservoir is higher than the water inlet of the aquaculture tank.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202322018337.2U CN220703455U (en) | 2023-07-30 | 2023-07-30 | Circulating water system for industrial cultivation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202322018337.2U CN220703455U (en) | 2023-07-30 | 2023-07-30 | Circulating water system for industrial cultivation |
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| CN202322018337.2U Active CN220703455U (en) | 2023-07-30 | 2023-07-30 | Circulating water system for industrial cultivation |
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