CN210642027U - Efficient oxygenation device for fish culture based on semipermeable membrane negative pressure container - Google Patents
Efficient oxygenation device for fish culture based on semipermeable membrane negative pressure container Download PDFInfo
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- CN210642027U CN210642027U CN201921067869.2U CN201921067869U CN210642027U CN 210642027 U CN210642027 U CN 210642027U CN 201921067869 U CN201921067869 U CN 201921067869U CN 210642027 U CN210642027 U CN 210642027U
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- Prior art keywords
- negative pressure
- water
- oxygen
- pressure container
- circulating water
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- 239000012528 membrane Substances 0.000 title claims abstract description 32
- 238000006213 oxygenation reaction Methods 0.000 title claims abstract description 18
- 241000251468 Actinopterygii Species 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 80
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000001301 oxygen Substances 0.000 claims abstract description 41
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 41
- 238000009360 aquaculture Methods 0.000 claims abstract description 15
- 244000144974 aquaculture Species 0.000 claims abstract description 15
- 229920006306 polyurethane fiber Polymers 0.000 claims abstract description 13
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000004033 plastic Substances 0.000 claims abstract description 5
- 229920003023 plastic Polymers 0.000 claims abstract description 5
- 239000007789 gas Substances 0.000 claims description 22
- 238000005273 aeration Methods 0.000 claims description 12
- 238000005276 aerator Methods 0.000 claims description 4
- 229910021529 ammonia Inorganic materials 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 230000009467 reduction Effects 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 2
- 238000009372 pisciculture Methods 0.000 claims 4
- 241000894007 species Species 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 239000013589 supplement Substances 0.000 abstract description 2
- 229910001873 dinitrogen Inorganic materials 0.000 abstract 1
- 230000009469 supplementation Effects 0.000 abstract 1
- 238000005265 energy consumption Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000001471 micro-filtration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001706 oxygenating effect Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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- Farming Of Fish And Shellfish (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The utility model relates to an aquaculture equips the field, concretely relates to based on high-efficient oxygenation device of pellicle negative pressure container fish culture. Mainly improves the dissolved oxygen supplement of the circulating water body of the high-density aquaculture, and leads the circulating water body to be energy-saving and efficient. The ammonia gas and nitrogen gas are extracted and exhausted by utilizing a polyurethane fiber membrane (8) semipermeable membrane technology, and a plastic auger device (9) is designed to accelerate the implementation of the process. On the premise, oxygen supplementation is carried out on the water body, the content of dissolved oxygen in the water body is improved, and successful implementation of high-density aquaculture and saving of aquaculture cost are facilitated.
Description
Technical Field
The utility model relates to an aquaculture equips the field, concretely relates to based on high-efficient oxygenation device of pellicle negative pressure container fish culture.
Background
At present, the country pays more and more attention to the protection of the ecological environment while paying attention to the economic development, particularly to the protection of water resources of great rivers, lakes and parks, and large-area water is required to forbid artificial aquaculture so as to achieve the purpose of purifying water quality and improving living environment of people. In this context, land-based aquaculture plants are favored by more and more aquaculture farmers, and container aquaculture is also one of the methods, because the land-based aquaculture plants have small floor space, are more flexible and portable, are matched with efficient aquaculture equipment, and will be an emerging field of aquaculture in the near future. The container water body culture density is high, the requirement on dissolved oxygen in the culture water body is high, and how to improve the dissolved oxygen in the water body becomes a key technical index for improving the container culture density. At present, a method for improving dissolved oxygen of container culture water mainly pumps oxygen or clean air into the culture water through a Roots blower. The device is operated 24 hours in the whole culture period, the energy consumption and cost investment are large, and a plurality of farmers are forbidden. Even so, the dissolved oxygen content of the water is not well improved because the water often contains other dissolved substances, including carbon dioxide, nitrogen, ammonia, and other dissolved substances. In this case, the injection of oxygen into the water body can be inefficient in producing an effective dissolved oxygen component in the water body. The utility model discloses an utilize current new material and innovative design to improve the efficiency that water dissolved oxygen supplyed, improve container and breed density, reduce the oxygenating cost.
Disclosure of Invention
At present, the efficiency of supplementing dissolved oxygen to the water body of the container is low, the energy consumption cost is high, the supplementing efficiency of the dissolved oxygen in the water body can be greatly improved through the technology, and meanwhile, the energy consumption cost of oxygen enrichment of the water body is also reduced.
The utility model discloses a following technical scheme realizes:
a high-efficiency fish culture oxygenation device based on a semipermeable membrane negative pressure container is characterized by comprising a negative pressure box body connected with a water inlet of a circulating water body, wherein the interior of the negative pressure box body is divided into an upper part and a lower part by a polyurethane fiber membrane supported by a semipermeable membrane support, the upper part is a free gas cavity, the gas in the interior of the negative pressure box body enters a vacuum air pump through an air inlet pipe, the vacuum air pump applies work and is discharged from an air outlet pipe, the upper space of the negative pressure box body forms a negative pressure vacuum state, the lower part is the circulating water body dissolved with ammonia and nitrogen, a plastic packing auger device is driven to rotate through a speed reducing motor, so that non-polar gas molecules among water molecules are accelerated to reach the surface of the polyurethane fiber membrane, the polyurethane fiber membrane penetrates through the upper gas cavity under the action of the suction force of vacuum negative pressure, and, oxygen inside the micropore aeration pipe at the bottom of the aeration box body is injected into the circulating water body in the form of a large number of bubbles through the work of the aerator and the discharge pressure of the oxygen bottle, the large number of bubbles and the circulating water body form a large-area contact surface, oxygen molecules are embedded into water molecule gaps in a free mode, meanwhile, hydration reaction is carried out to form oxygen-enriched circulating water with high dissolved oxygen, and then the oxygen-enriched circulating water enters the aquaculture box through the water outlet to maintain the oxygen supply of high-density aquatic products.
Further, the semipermeable membrane support in the negative pressure box body plays a role in supporting the polyurethane fiber membrane.
Further, the direct current gear motor drives the plastic auger device to stir the water body, and the separation of dissolved gas in the water body is accelerated.
Further, an aeration pipe in the aeration box body is connected with an aerator and an oxygen bottle to oxygenate the circulating water body containing a small amount of dissolved gas.
Furthermore, a circulating water pipeline is connected with the negative pressure box body and the oxygen increasing box body to form a closed water body environment through a connecting pipe.
Further, the air inlet pipe of the vacuum air extractor is connected with the air side of the polyurethane fiber membrane, and dissolved gas permeating from the water body is extracted.
Further, the working frequency of the speed reducing motor and the oxygen increasing machine of the system can be adjusted according to different varieties of fishes.
The utility model discloses following advantage and beneficial effect have:
by the technology, the supplement efficiency of the dissolved oxygen in the container culture water body can be greatly improved, and the energy consumption cost of water body oxygenation is also reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a diagram of the structure of the device of the present invention.
Reference numbers and corresponding part names in the drawings:
the device comprises a vacuum air pump 1, an air outlet pipe 2, an air inlet pipe 3, a negative pressure box 4, a speed reduction motor 5, a water inlet 6, a semipermeable membrane support frame 7, a polyurethane fiber membrane 8, an auger device 9, a microporous aeration pipe 10, an aerator 11, a water outlet 12, an oxygen cylinder 13, a connecting pipe 14 and an aeration box 15.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.
Examples
As shown in figure 1, a high-efficiency oxygenation device for fish culture based on a semipermeable membrane negative pressure container is placed in the last section of water inlet after water treatment, bait residues, organic matters and inorganic matters capable of being contained and attached to the organic matters are thrown out of a water body through a microfiltration machine, a protein separator separates the dissolved organic matters from the water body, the water body meets the requirement of cleanliness after being treated through a cyclone, a biological filter and ultraviolet ray sterilization, but the water body still contains aqueous solution of ammonia and aqueous solution of nitrogen which occupy most of the space capable of containing gas in the water body, the circulating water body is sent into a negative pressure box body 4 through a water inlet 6 for vacuum air suction, the circulating water body is pumped into an aeration box body 15 through a connecting pipe 14, and after high-efficiency oxygenation is finished, the circulating water body enters a culture box through a water outlet 12, and the percentage occupation amount of oxygen in fresh air supplemented through an aeration pipe at the bottom of the container water body, the oxygen increasing machine 11 supplies oxygen to the aquaculture water body in the positive pressure water tank through the microporous aeration pipe 10.
Specifically, the vacuum air pump 1 discharges the gas containing ammonia nitrogen from the air outlet pipe 2 through the air inlet pipe 3 extending into the negative pressure water tank 4 by applying work of the vacuum air pump, and the air pressure formed by air suction is offset on the semipermeable membrane support 7 by the polyurethane fiber membrane 8 in the negative pressure tank 4, so that the semipermeable membrane always keeps the maximum open surface, and the gas exchange is facilitated.
Specifically, the design height of the negative pressure tank 4 can be calculated according to the flow of the circulating water pump and the diameter of the circulating water pipeline to obtain a relatively ideal tank height.
The invention relates to a semipermeable membrane negative pressure container-based fish culture efficient oxygenation device, which has the working principle as follows:
the solubility of the gas in water has a direct relation with temperature and pressure, the gas is pushed into the water body by large pressure, and the separation of the gas in the water body is accelerated by pressure reduction. The device utilizes gas and water under different pressure conditions, and the different characteristics of reaction promote the water to the elimination of unnecessary gas, vacate unnecessary space for promote the water to the absorption of oxygen under the circumstances of malleation, improve the dissolved oxygen content of water, provide sufficient dissolved oxygen water for high density shoal of fish.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. A high-efficiency fish culture oxygenation device based on a semipermeable membrane negative pressure container is characterized by comprising a negative pressure box body (4) connected with a circulating water inlet (6), wherein the inside of the negative pressure box body is divided into an upper part and a lower part by a polyurethane fiber membrane (8) supported by a semipermeable membrane support (7), the upper part is a free gas cavity, the gas in the negative pressure box body enters a vacuum air extractor (1) through an air inlet pipe (3), the vacuum air extractor (1) applies work and is discharged from an air outlet pipe (2), so that the upper space of the negative pressure box body (4) forms a negative pressure vacuum state, the lower part is a circulating water body dissolved with ammonia and nitrogen, a plastic auger device (9) is driven to rotate by a speed reducing motor (5), the non-polar gas molecules among water molecules are accelerated to reach the surface of the polyurethane fiber membrane (8), and penetrate through the polyurethane fiber membrane (8) to enter the upper gas cavity under, circulating water with free gas molecules among water absorbed by the negative pressure box body (4) enters the oxygen increasing box body (15) through the connecting pipe (14), oxygen inside the micropore aeration pipe (10) at the bottom of the oxygen increasing box body (15) is injected into circulating water in the form of a large number of bubbles through the work of the oxygen increasing machine (11) and the discharge pressure of the oxygen bottle (13) to form oxygen-enriched circulating water, and then the oxygen is fed into the aquaculture box through the water outlet (12) to maintain the oxygen supply of high-density aquatic products.
2. The fish-farming high-efficiency oxygenation device based on the semi-permeable membrane negative pressure container as claimed in claim 1, characterized in that the semi-permeable membrane bracket (7) in the negative pressure container body (4) plays a role of supporting the polyurethane fiber membrane (8).
3. The utility model provides a install auger device (9) in negative pressure box (4) based on high-efficient oxygenation device of pellicle negative pressure container fish culture, its characterized in that, direct current gear motor (5) drive plastics auger device (9) and stir the water, dissolve gaseous appearing in the water with higher speed.
4. The efficient fish culture oxygenation device based on the semipermeable membrane negative pressure container as claimed in claim 1, wherein an aeration pipe (10) inside the aeration tank body is connected with an aerator (11) and an oxygen bottle (13) to oxygenate the circulating water body containing a small amount of dissolved gas.
5. The fish-farming high-efficiency oxygenation device based on the semipermeable membrane negative pressure container as claimed in claim 1, characterized in that the circulating water pipeline connects the negative pressure container body (4) and the oxygenation container body (15) to form a closed water environment through the connecting pipe (14).
6. The negative-pressure container fish-farming high-efficiency oxygenation device based on semipermeable membrane according to claim 1, characterized in that the air inlet pipe (3) of the vacuum air pump (1) is connected with the air side of the polyurethane fiber membrane (8) to extract dissolved gas permeating from the water body.
7. The negative-pressure container fish-farming high-efficiency oxygenation device based on semipermeable membrane according to claim 1, characterized in that the operating frequency of the speed reduction motor (5) and the oxygenation machine (11) of the system can be adjusted according to different species of fish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921067869.2U CN210642027U (en) | 2019-07-10 | 2019-07-10 | Efficient oxygenation device for fish culture based on semipermeable membrane negative pressure container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921067869.2U CN210642027U (en) | 2019-07-10 | 2019-07-10 | Efficient oxygenation device for fish culture based on semipermeable membrane negative pressure container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210642027U true CN210642027U (en) | 2020-06-02 |
Family
ID=70805744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921067869.2U Expired - Fee Related CN210642027U (en) | 2019-07-10 | 2019-07-10 | Efficient oxygenation device for fish culture based on semipermeable membrane negative pressure container |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210642027U (en) |
-
2019
- 2019-07-10 CN CN201921067869.2U patent/CN210642027U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200602 |
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| CF01 | Termination of patent right due to non-payment of annual fee |