CN112408548A - Water desalination device for large-scale seedling cultivation of litopenaeus vannamei - Google Patents
Water desalination device for large-scale seedling cultivation of litopenaeus vannamei Download PDFInfo
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- CN112408548A CN112408548A CN202011122597.9A CN202011122597A CN112408548A CN 112408548 A CN112408548 A CN 112408548A CN 202011122597 A CN202011122597 A CN 202011122597A CN 112408548 A CN112408548 A CN 112408548A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 149
- 241000238553 Litopenaeus vannamei Species 0.000 title claims abstract description 28
- 238000010612 desalination reaction Methods 0.000 title claims abstract description 10
- 239000013535 sea water Substances 0.000 claims abstract description 46
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 27
- 238000000926 separation method Methods 0.000 claims abstract description 19
- 150000003839 salts Chemical class 0.000 claims abstract description 16
- 238000002156 mixing Methods 0.000 claims abstract description 15
- 239000012528 membrane Substances 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims description 15
- 239000012535 impurity Substances 0.000 claims description 13
- 238000001914 filtration Methods 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 241000883990 Flabellum Species 0.000 claims description 4
- 230000006978 adaptation Effects 0.000 claims description 4
- 238000007781 pre-processing Methods 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 230000000737 periodic effect Effects 0.000 claims description 2
- 239000013505 freshwater Substances 0.000 abstract description 15
- 238000009360 aquaculture Methods 0.000 abstract description 12
- 244000144974 aquaculture Species 0.000 abstract description 12
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 239000007921 spray Substances 0.000 description 6
- 238000009395 breeding Methods 0.000 description 4
- 230000001488 breeding effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 3
- 241000238557 Decapoda Species 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 238000012851 eutrophication Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000003653 coastal water Substances 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002431 foraging effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000384 rearing effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 235000013547 stew Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/50—Culture of aquatic animals of shellfish
- A01K61/59—Culture of aquatic animals of shellfish of crustaceans, e.g. lobsters or shrimps
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/042—Introducing gases into the water, e.g. aerators, air pumps
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/045—Filters for aquaria
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Biodiversity & Conservation Biology (AREA)
- Animal Husbandry (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Water Supply & Treatment (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Zoology (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention discloses a water desalination device for large-size litopenaeus vannamei fry cultivation, which adopts the technical scheme that the water desalination device comprises a separation chamber, wherein a reverse osmosis membrane is arranged in the separation chamber, the separation chamber is divided into a low-pressure area and a high-pressure area by the reverse osmosis membrane, the separation chamber is connected with a water inlet pipe, a first water outlet pipe and a second water outlet pipe, a pressurizing device is arranged on the water inlet pipe, the second water outlet pipe is connected with a blending device for adjusting the concentration of supplied water salt, and the first water inlet pipe is connected with the. The invention has the following beneficial effects: seawater enters a high-pressure area in the separation chamber through a water inlet pipe, all dissolved salts and organic matters with molecular weight larger than 100 are intercepted through a reverse osmosis membrane, water molecules are allowed to pass through the reverse osmosis membrane, fresh water is obtained in a low-pressure area, concentrated seawater is added into the fresh water in different proportions through a blending device 7 to obtain aquaculture water with different salt concentrations, and the aquaculture water is used for cultivating the litopenaeus vannamei.
Description
Technical Field
The invention relates to seedling raising equipment, in particular to a water desalination device for large-size seedling raising of litopenaeus vannamei.
Background
The seedling cultivation refers to a process of cultivating seedlings into seedlings, namely a stage of artificial protection until the seedlings can independently survive. Adult litopenaeus vannamei mostly live in coastal water areas near off-shore, and young litopenaeus vannamei like foraging and growing in river mouths with rich baits. The method introduces litopenaeus vannamei at the end of the 80 th of the 20 th century in China, successfully breeds litopenaeus vannamei at the early stage of the 90 th, starts to breed in large scale after 2000 years, becomes a main object of shrimp breeding in China, and widely breeds in most areas from east to west, coastal areas to inland. According to incomplete statistics, the yield of the litopenaeus vannamei including freshwater aquaculture accounts for 80 percent of the total yield of all the aquaculture shrimps in China. If the litopenaeus vannamei needs to be cultured in fresh water, the seedlings of the litopenaeus vannamei need to be desalted and cultured into fresh water seedlings so as to be suitable for the fresh water culture environment. In the process, culture water with different salt concentrations is needed, most of the existing culture water is prepared by adding salt into fresh water, the production cost is too high, and large-scale culture is not facilitated. And the used fresh water is fresh water or well water in a river channel, a large amount of microorganisms are contained in the water, and the eutrophication culture of the water body is not beneficial to the seedling culture, so that the seedling breeding success rate is low, the seedling quality is not high, and the culture success rate is low.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the device for desalinating the water for cultivating the large-size seeds of the litopenaeus vannamei, which can convert seawater into the cultivation water with different salinity, thereby providing a large amount of cultivation water for the cultivation tank.
In order to achieve the purpose, the invention provides the following technical scheme: water desalination device is cultivated to big specification seed of litopenaeus vannamei, including the preprocessing device who filters the aquatic impurity and the reverse osmosis unit who is used for the separation water, preprocessing device is connected with reverse osmosis unit, for reverse osmosis unit supplies the sea water, reverse osmosis unit is including the separating chamber, be provided with reverse osmosis membrane in the separating chamber, reverse osmosis membrane separates the separating chamber for low-pressure area and high-pressure area, the separating chamber is connected with the inlet tube, first outlet pipe and second outlet pipe, first outlet pipe is connected with the low-pressure area, inlet tube and second outlet pipe all are connected with the high-pressure area, install pressure device on the inlet tube, the second outlet pipe is connected with the blending device who is used for adjusting water supply salt concentration, first outlet pipe is connected with the blending device, the blending device is connected with the drain pipe and is.
The invention is further configured to: the blending device comprises a connecting channel, a water supply channel and a drainage channel, wherein the connecting channel is used for connecting the water supply channel and the drainage channel, two ends of the water supply channel are respectively connected with a first water outlet pipe and a water supply pipe, two ends of the drainage channel are respectively connected with a second water outlet pipe and a drain pipe, an adjuster is installed on the adjuster, an adjusting rod is arranged on the adjuster, the adjusting rod extends into the drainage channel and is connected with an adjusting block, and an inclined plane is arranged on the face of the adjusting block facing the connecting channel.
The invention is further configured to: pressure device is including the piston of driver and inlet tube adaptation, the piston slides and sets up in the inlet tube, be provided with the telescopic link on the driver, telescopic link and piston connection, in order to drive the piston along the length direction periodic reciprocating motion of inlet tube, be provided with the limbers on the piston, the limbers internal rotation is connected with the clamp plate with the limbers adaptation, and be provided with two stoppers, two stoppers set up the both sides at the clamp plate respectively, be provided with reset spring on the clamp plate, reset spring's one end is connected on the stopper towards high nip.
The invention is further configured to: still be provided with the heating device who is used for heating the sea water in the separator, heating device is including the dwang, and the dwang rotates to be connected on the bottom surface in high nip, is provided with a plurality of flabellums on the dwang, all is provided with the hot plate in a plurality of flabellums.
The invention is further configured to: the pretreatment device further comprises a standing barrel for standing seawater to precipitate impurities, the standing barrel is provided with a water pump, the water pump is connected with a filter, the filter is connected with a water inlet pipe, the filter is provided with a shell, the shell is detachably connected with a filter screen and a filter core, the filter screen is in a cylindrical shape to accommodate filtered impurities, and the filter core is internally provided with active carbon to absorb the filtered impurities.
The invention is further configured to: the device also comprises a controller, wherein sensors for detecting water pressure and salt concentration are arranged on the inner wall of the high-pressure area, and the controller is respectively connected with the sensors, the driver, the heating plate and the water pump.
The invention is further configured to: the delivery pipe is connected with the control valve, the control valve is connected with the watering frame, be provided with slide rail and motor on the watering frame, sliding connection has the slide on the slide rail to install the second pulley, be connected with drive plate and sprinkler pipe on the slide, the sprinkler pipe is connected with the hose, the hose is connected with the control valve, install first pulley on the motor, the cover is provided with the connection rope on first pulley and the second pulley, the drive plate is provided with the spout, spout sliding connection has the slider, the slider is connected with the connection rope.
The invention is further configured to: the sprinkler pipe is provided with a plurality of sprinkler heads, the sprinkler heads are all provided with control switches, and the controller is further connected with the control switches respectively.
The invention is further configured to: the drain pipe is detachably connected with a collecting barrel used for containing concentrated liquid.
In conclusion, the invention has the following beneficial effects: after the seawater is filtered by the pretreatment device, the seawater is desalinated by the reverse osmosis device, so that the seawater quality and the treatment efficiency can be improved. The sea water after filtering passes through the high nip in the inlet tube entering separation chamber, pass through reverse osmosis membrane and hold back the organic matter that dissolves salt and molecular weight and be greater than 100, allow the hydrone to pass through simultaneously, make the low-pressure area obtain fresh water, add concentrated sea water with different proportions into fresh water through the blending device in order to obtain the aquaculture water of different salt concentration, and input aquaculture water into the culture pond with the delivery pipe, in order to be used for cultivating litopenaeus vannamei, except that the sea water need not extra additive, thereby reduce cost pressure device improves the water pressure in high nip, thereby accelerate the filter speed, improve the water yield, thereby can supply aquaculture water in a large number.
Drawings
FIG. 1 is a schematic view of a connection structure of a water desalination device for large-scale offspring seed cultivation of Litopenaeus vannamei;
FIG. 2 is an enlarged view A of FIG. 1;
FIG. 3 is an enlarged view B of FIG. 1;
FIG. 4 is an enlarged view of C of FIG. 1;
FIG. 5 is a schematic view of a fan blade connection structure;
FIG. 6 is a schematic view of the connection structure of the collecting barrel;
FIG. 7 is a schematic view of the connection structure of the sprinkler frame;
fig. 8 is a schematic view of the connection structure of the sprinkler tube.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Referring to fig. 1-8, the water desalination device for large-scale offspring seed cultivation of litopenaeus vannamei comprises a pretreatment device 2 for filtering impurities in seawater and a reverse osmosis device 1 for separating water, wherein the pretreatment device 2 is connected with the reverse osmosis device 1 to supply seawater for the reverse osmosis device 1, the reverse osmosis device 1 comprises a separation chamber 11, a reverse osmosis membrane 12 is arranged in the separation chamber 11, the separation chamber 11 is divided into a low-pressure area 111 and a high-pressure area 112 by the reverse osmosis membrane 12, the separation chamber 11 is connected with a water inlet pipe 13, a first water outlet pipe 14 and a second water outlet pipe 15, the first water outlet pipe 14 is connected with the low-pressure area 111, the water inlet pipe 13 and the second water outlet pipe 15 are both connected with the high-pressure area 112, the water inlet pipe 13 is provided with a pressurizing device 3, the second water outlet pipe 15 is connected with a blending device, the blending device 7 is connected with a water discharge pipe 71 and a water supply pipe 72 for supplying water for the fry rearing.
Through the scheme, after the seawater is filtered by the pretreatment device 2, the seawater is desalinated by the reverse osmosis device 1, so that the seawater quality and the treatment efficiency can be improved. Filtered seawater enters a high pressure area 112 in the separation chamber 11 through a water inlet pipe 13, organic matters with dissolved salt and molecular weight larger than 100 are intercepted through a reverse osmosis membrane 12, and water molecules are allowed to pass through, so that fresh water is obtained in a low pressure area, concentrated seawater is added into the fresh water in different proportions through a blending device 7 to obtain aquaculture water with different salt concentrations, the aquaculture water is input into the culture pond through a water supply pipe 72, so that the aquaculture water is used for culturing litopenaeus vannamei, no extra additive is needed except for the seawater, the cost is reduced, the water pressure of the high pressure area 112 is increased through a pressurizing device 3, the filtering speed is increased, the water yield is increased, and a large amount of aquaculture water can be supplied. Because the seawater is used for processing, a more stable water source can be obtained, the demand on fresh water resources is reduced, the content of microorganisms in water is reduced, eutrophication culture of water is avoided, the high quality and stability of water quality are ensured, and the method is suitable for fry cultivation, so that the fry breeding success rate and the fry quality are improved, and the culture success rate is further improved.
As an improved specific embodiment, the blending device 7 includes a connection channel 73, a water supply channel 74 and a water discharge channel 75, the connection channel 73 is used for connecting the water supply channel 74 and the water discharge channel 75, two ends of the water supply channel 74 are respectively connected with the first water outlet pipe 14 and the water supply pipe 72, two ends of the water discharge channel 75 are respectively connected with the second water outlet pipe 15 and the water discharge pipe 71, and a regulator 76 is installed, an adjustment rod 761 is arranged on the regulator 76, the adjustment rod 761 extends into the water discharge channel 75 and is connected with an adjustment block 77, and a slope 771 is arranged on a surface of the adjustment block 77 facing the connection channel 73.
Through the scheme, the regulator 76 drives the regulating block 77 to move, so that the concentrated seawater with different proportions is shunted to the connecting channel 73 through the regulating block 77, the concentrated seawater entering the connecting channel 73 is mixed into the water supply channel 74 and is mixed with the fresh water to obtain the aquaculture water with different salt concentrations, and the redundant concentrated seawater is discharged through the drain pipe 71. The inclined surface 771 facilitates guiding the concentrated seawater to be shunted.
As an improved specific embodiment, the pressurizing device 3 includes a piston 32 adapted to the driver 31 and the water inlet pipe 13, the piston 32 is slidably disposed in the water inlet pipe 13, the driver 31 is provided with an expansion link 311, the expansion link 311 is connected to the piston 32 to drive the piston 32 to periodically reciprocate along the length direction of the water inlet pipe 13, the piston 32 is provided with a water through hole 321, a pressing plate 33 adapted to the water through hole 321 is rotatably connected to the water through hole 321, and two limit blocks 322 are provided, the two limit blocks 322 are respectively disposed on two sides of the pressing plate 33, the pressing plate 33 is provided with a return spring 331, and one end of the return spring 331 is connected to the limit block 322 facing the high pressure area 112.
Through the above scheme, when the piston 32 moves towards the high pressure area 112, the pressure plate 33 closes the water through hole 321 and presses the seawater, so that the water pressure of the high pressure area 112 is increased, the filtering speed is increased, and the water yield is increased. When the piston 32 moves away from the high pressure region 112, the pressure plate 33 rotates, so that the water passage hole 321 is opened, and seawater enters the high pressure region 112 from the water passage hole 321, thereby replenishing the seawater. The piston 32 is moved back and forth periodically to continuously supplement seawater and pressurize the seawater, and negative pressure is formed at the water inlet of the water inlet pipe 13 to draw the seawater, so that the seawater can be continuously pumped, and the water yield can be improved.
As a modified specific embodiment, a heating device 4 for heating seawater is further disposed in the separation chamber 11, the heating device 4 includes a rotating rod 41, the rotating rod 41 is rotatably connected to the bottom surface of the high pressure region 112, a plurality of blades 42 are disposed on the rotating rod 41, and a heating plate 43 is disposed in each of the plurality of blades 42.
Through the above scheme, after the seawater flows in, the water flow pushes the fan blades 42 to rotate, so that the seawater is stirred, the concentration is uniform, the seawater permeation efficiency is ensured, and the heating plate 43 heats the seawater, so that the permeation speed is increased. And sterilizing by heating, thereby improving water supply quality.
As a modified specific embodiment, the pretreatment device 2 further comprises a standing barrel 21 for standing seawater to precipitate impurities, the standing barrel 21 is provided with a water pump 22, the water pump 22 is connected with a filter 23, the filter 23 is connected with the water inlet pipe 13, the filter 23 is provided with a shell 231, the shell 231 is detachably connected with a filter screen 24 and a filter element 25, the filter screen 24 is in a cylindrical shape to accommodate filtered impurities, and the filter element 25 is internally provided with activated carbon to absorb the filtered impurities.
Through above-mentioned scheme, the bucket 21 that stews mixes the medicament, forms the granule after reacting with the harmful substance in the sea water and deposits to reduce bacterium and organic matter, deposit the back with most suspension granule, filter screen 24 filters great impurity, and tubular structure is convenient for hold and takes out, and activated carbon can further adsorb and reduce slight impurity, makes the sea water after the filtration be difficult for damaging reverse osmosis membrane 12, plays guard action, increase of service life.
As a modified embodiment, the device further comprises a controller 5, wherein sensors 51 for detecting water pressure and salt concentration are arranged on the inner wall of the high pressure region 112, and the controller 5 is respectively connected with the sensors 51, the driver 31, the heating plate 43 and the water pump 22.
Through the above scheme, controller 5 is according to the water pressure and the salt concentration that sensor 51 sensed to control driver 31, hot plate 43 and water pump 22, play automated control's effect, in order to practice thrift the manual work, improve work efficiency.
As a modified specific embodiment, the water supply pipe 72 is connected with a control valve 141, the control valve 141 is connected with a water spray frame 6, the water spray frame 6 is provided with a slide rail 61 and a motor 62, the slide rail 61 is slidably connected with a slide seat 611 and is provided with a second pulley 612, the slide seat 611 is connected with a drive plate 614 and a water spray pipe 63, the water spray pipe 63 is connected with a hose 631, the hose 631 is connected with the control valve 141, the motor 62 is provided with a first pulley 621, the first pulley 621 and the second pulley 612 are sleeved with a connecting rope 622, the drive plate 614 is provided with a sliding groove 613, the sliding groove 613 is slidably connected with a slider 623, and the slider 623 is connected with the connecting rope 622.
Through above-mentioned scheme, motor 62 is servo motor, and the first pulley 621 of drive rotates to drive slider 623 through connecting rope 622 and remove, slider 623 tightly compels the spout 613 inner wall, removes along the length direction of slide rail 61 with drive plate 614 and slide 611, thereby drives sprinkler 63 and removes, and sprinkler 63 sets up in the top of cultivating the pond, sprays on the optional position as required, thereby makes the water of breeding evenly add to cultivate in the pond.
As a modified embodiment, a plurality of sprinklers 65 are disposed on the sprinkler pipe 63, a control switch 651 is disposed on each of the sprinklers, and the controller 5 is further connected to the control switches 651 respectively.
Through the above scheme, the controller 5 controls the corresponding sprinkler head 65 to be opened through the control switch 651, so as to spray to the corresponding position. Due to the spraying method, the culture pond can be fully contacted with air to supplement oxygen for the culture pond.
In a modified embodiment, the separation chamber 11 is further connected to a second water outlet pipe 15, the second water outlet pipe 15 is communicated with the high pressure region 112, and the second water outlet pipe 15 is detachably connected to a collecting barrel 151 for containing the concentrated solution.
Through the above scheme, the collecting vessel 151 is convenient for contain and transport the surplus concentrated seawater to be processed as raw material.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (9)
1. The large-specification seedling cultivation water desalination device for the litopenaeus vannamei comprises a pretreatment device (2) for filtering impurities in seawater and a reverse osmosis device (1) for separating water, wherein the pretreatment device (2) is connected with the reverse osmosis device (1) to supply seawater for the reverse osmosis device (1), and the large-specification seedling cultivation water desalination device for the litopenaeus vannamei is characterized in that: the reverse osmosis device (1) comprises a separation chamber (11), a reverse osmosis membrane (12) is arranged in the separation chamber (11), the reverse osmosis membrane (12) divides the separation chamber (11) into a low pressure zone (111) and a high pressure zone (112), the separation chamber (11) is connected with a water inlet pipe (13), a first water outlet pipe (14) and a second water outlet pipe (15), the first outlet pipe (14) is connected to a low pressure region (111), the inlet pipe (13) and the second outlet pipe (15) are both connected to a high pressure region (112), the water inlet pipe (13) is provided with a pressurizing device (3), the second water outlet pipe (15) is connected with a blending device (7) for adjusting the concentration of supplied water salt, the first water outlet pipe (14) is connected with a blending device (7), and the blending device (7) is connected with a drain pipe (71) and a water supply pipe (72) for supplying water for cultivating seedlings.
2. The device for desalinating water for large-size litopenaeus vannamei fry cultivation according to claim 1, which is characterized in that: the blending device (7) comprises a connecting channel (73), a water supply channel (74) and a water drainage channel (75), wherein the connecting channel (73) is used for connecting the water supply channel (74) and the water drainage channel (75), two ends of the water supply channel (74) are respectively connected with a first water outlet pipe (14) and a water supply pipe (72), two ends of the water drainage channel (75) are respectively connected with a second water outlet pipe (15) and a water drainage pipe (71) and are provided with a regulator (76), the regulator (76) is provided with a regulating rod (761), the regulating rod (761) extends into the water drainage channel (75) and is connected with a regulating block (77), and the surface of the regulating block (77) facing the connecting channel (73) is provided with an inclined surface (771).
3. The device for desalinating water for large-size litopenaeus vannamei fry cultivation according to claim 2, wherein the device comprises: pressure device (3) including piston (32) of driver (31) and inlet tube (13) adaptation, piston (32) slide and set up in inlet tube (13), be provided with telescopic link (311) on driver (31), telescopic link (311) are connected with piston (32) to drive piston (32) along the length direction periodic reciprocating motion of inlet tube (13), be provided with limbers (321) on piston (32), limbers (321) internal rotation is connected with clamp plate (33) with limbers (321) adaptation to be provided with two spacing rings (322), two spacing ring (322) set up the both sides at clamp plate (33) respectively, be provided with reset spring (331) on clamp plate (33), the one end of reset spring (331) is connected on spacing ring (322) towards high-pressure district (112).
4. The device for desalinating water for large-size litopenaeus vannamei fry cultivation according to claim 3, wherein the device comprises: still be provided with heating device (4) that are used for heating the sea water in separation chamber (11), heating device (4) are including dwang (41), dwang (41) are rotated and are connected on the bottom surface of high pressure district (112), be provided with a plurality of flabellums (42) on dwang (41), it is a plurality of all be provided with hot plate (43) in flabellum (42).
5. The device for desalinating water for large-size litopenaeus vannamei fry cultivation according to claim 4, wherein the device comprises: preprocessing device (2) are still including bucket (21) of stewing that is used for the sea water of stewing to deposit impurity, bucket (21) of stewing is provided with water pump (22), water pump (22) are connected with filter (23), filter (23) are connected with inlet tube (13), filter (23) are provided with casing (231), casing (231) can be dismantled and be connected with filter screen (24) and filter core (25), filter screen (24) are the tube-shape to hold the debris of filtering out, be provided with the active carbon in filter core (25) to absorb the impurity after the filtration.
6. The device for desalinating water for large-size litopenaeus vannamei fry cultivation according to claim 5, wherein the device comprises: the device is characterized by further comprising a controller (5), wherein sensors (51) used for detecting water pressure and salt concentration are arranged on the inner wall of the high-pressure area (112), and the controller (5) is respectively connected with the sensors (51), the driver (31), the heating plate (43) and the water pump (22).
7. The device for desalinating water for large-size litopenaeus vannamei fry cultivation according to claim 6, wherein the device comprises: delivery pipe (72) are connected with control valve (141), control valve (141) are connected with watering frame (6), be provided with slide rail (61) and motor (62) on watering frame (6), sliding connection has slide (611) on slide rail (61) to install second pulley (612), be connected with drive plate (614) and sprinkler pipe (63) on slide (611), sprinkler pipe (63) are connected with hose (631), hose (631) are connected with control valve (141), install first pulley (621) on motor (62), the cover is provided with on first pulley (621) and second pulley (612) and connects rope (622), 614) are provided with spout (613), spout (613) sliding connection has slider (623), slider (623) and be connected rope (622).
8. The device for desalinating water for large-size litopenaeus vannamei fry cultivation according to claim 7, wherein the device comprises: the sprinkler is characterized in that the sprinkler pipe (63) is provided with a plurality of sprinkler heads (65), the sprinkler heads (65) are all provided with control switches (651), and the controller (5) is further connected with the control switches (651) respectively.
9. The device for desalinating water for large-size litopenaeus vannamei fry cultivation according to claim 1, which is characterized in that: the drain pipe (71) is detachably connected with a collecting barrel (151) for containing concentrated seawater.
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| CN202011122597.9A CN112408548B (en) | 2020-10-20 | 2020-10-20 | Water desalination device for large-scale seedling cultivation of litopenaeus vannamei |
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