NL2031606B1 - Oxygen cone and aquaculture factory ship oxygenation system - Google Patents
Oxygen cone and aquaculture factory ship oxygenation system Download PDFInfo
- Publication number
- NL2031606B1 NL2031606B1 NL2031606A NL2031606A NL2031606B1 NL 2031606 B1 NL2031606 B1 NL 2031606B1 NL 2031606 A NL2031606 A NL 2031606A NL 2031606 A NL2031606 A NL 2031606A NL 2031606 B1 NL2031606 B1 NL 2031606B1
- Authority
- NL
- Netherlands
- Prior art keywords
- oxygen
- cone
- water
- aquaculture
- cone body
- Prior art date
Links
- 239000001301 oxygen Substances 0.000 title claims abstract description 189
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 189
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 178
- 238000009360 aquaculture Methods 0.000 title claims abstract description 63
- 244000144974 aquaculture Species 0.000 title claims abstract description 61
- 238000006213 oxygenation reaction Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 151
- 230000001965 increasing effect Effects 0.000 claims abstract description 6
- 239000013535 sea water Substances 0.000 description 18
- 230000001105 regulatory effect Effects 0.000 description 12
- 241000251468 Actinopterygii Species 0.000 description 6
- 238000009395 breeding Methods 0.000 description 5
- 230000001488 breeding effect Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 229960003903 oxygen Drugs 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 241000195493 Cryptophyta Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 235000015170 shellfish Nutrition 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
Disclosed are an oxygen cone and an aquaculture factory ship oxygenation system, which relates to the technical field of oxygenation apparatuses. The oxygen cone includes a cone body and a cone bottom that may be detachably connected, an upper end of the cone body is provided with a water inlet for importing water in an aguaculture cabin into the cone body, and a side wall of the cone body is provided with an oxygen inlet for feeding oxygen into the cone body and a water outlet for feeding oxygen—enriched water in the cone body into a bottom portion in the aguaculture cabin; the cone body is a cone shape of which diameter and wall thickness are gradually increased from top to bottom; and the cone body is provided with an oxygen outlet for importing undissolved oxygen in the cone body into a water outlet pipe group.
Description
P1318/NLpd
TECHNICAL FIELD The present invention relates to the technical field of oxy- genation apparatuses, and in particular to an oxygen cone and an aquaculture factory ship oxygenation system.
BACKGROUND ART An oxygen cone is a core oxygen-increasing component that ef- ficiently dissolves oxygen in seawater, and the structure thereof has an important impact on an oxygen-increasing function, use con- venience and an anti-corrosion effect and the like. In a marine environment, in order to prevent devices and elements from being corroded by the seawater, an anti-corrosion treatment mode of stainless steel 316L or steel surface spraying is generally used. However, as a device for increasing the dissolution of oxygen in the seawater, it usually works in an oxygen-enriched seawater en- vironment. This environmental device is easily corroded, and sea creatures such as shellfish and algae may grow wildly. Corrosion may make the device lose functions or even cause an accident, the wild growth of the shellfish and algae may cause the device or pipelines to be blocked, the dissolved oxygen content is de- creased, and the oxygen concentration of aquaculture water in an aquaculture cabin is reduced, which may directly lead to the lack of oxygen and even death of a fish shoal so as to cause an unnec- essary loss.
SUMMARY A purpose of the present invention is to provide an oxygen cone and an aquaculture factory ship oxygenation system, as to solve the above problems existing in the prior art, the oxygen- increasing effect may be improved, and the overall service life is prolonged.
In order achieve the above purpose, the present invention provides the following schemes.
The present invention provides an oxygen cone, including a cone body and a cone bottom that may be detachably connected, wherein an upper end of the cone body is provided with a water in- let for importing water in an aquaculture cabin into the cone body, and a side wall of the cone body is provided with an oxygen inlet for feeding oxygen into the cone body and a water outlet for feeding oxygen-enriched water in the cone body into a bottom por- tion in the aquaculture cabin; the cone body is a cone shape of which diameter and wall thickness are gradually increased from top to bottom; and the cone body is provided with an oxygen outlet for importing undissolved oxygen in the cone body into a water outlet pipe group.
Preferably, an aquaculture cabin, a water outlet pipe group, a water inlet pipe group, an oxygen supply pipe group and the oxy- gen cone according to claim 1 are included, the water outlet pipe group is used for feeding water in the aquaculture cabin into the oxygen cone, the water inlet pipe group is used for feeding oxy- gen-enriched water in the oxygen cone into a bottom portion in the aquaculture cabin, and the oxygen supply pipe group is used for feeding oxygen into the oxygen cone.
Preferably, the water outlet pipe group includes a water out- let pipe and a water outlet remote control valve, a pump and a wa- ter outlet check valve that are successively mounted on the water outlet pipe, the water outlet remote control valve is close to the aquaculture cabin, and both ends of the water outlet pipe are re- spectively communicated to the aquaculture cabin and the water in- let.
Preferably, the water inlet pipe group includes a water inlet pipe and a water inlet remote control valve and a water flow regu- lating valve that are successively mounted on the water inlet pipe, the water inlet remote control valve is close to the aqua- culture cabin, and both ends of the water inlet pipe are respec- tively communicated to the aquaculture cabin and the water outlet.
Preferably, the oxygen supply pipe group includes an oxygen inlet pipe and an oxygen remote control valve, an oxygen flow reg- ulating valve, a flow meter, an oxygen cut-off valve and an oxygen one-way valve that are successively mounted on the oxygen inlet pipe, the oxygen remote control valve is close to the aquaculture cabin, and the oxygen inlet pipe is communicated to the outside world and the oxygen inlet.
The present invention achieves the following technical ef- fects relative to the prior art.
In the oxygen cone and the aquaculture factory ship oxygena- tion system provided by the present invention, a lower end of the cone body may be detachably connected with an upper end of the cone bottom, and a split design not only reduces the difficulty of manufacture, but also is convenient for cleaning the sea creatures in the oxygen cone, so the oxygen-increasing effect is improved, and the service life is prolonged. The water inlet provided on the upper end of the cone body is used to connect with the water out- let pipe group and import the water in the aquaculture cabin into the cone body, the side wall of the cone body is further provided with the oxygen inlet close to the upper end of the cone body, the oxygen inlet is used to feed the external oxygen into the cone body, as to oxygenate a water body in the aquaculture cabin in the cone body, and the side wall of the cone body is provided with the water outlet close to the cone bottom. The seawater forms a spray shape in the process of rapid downward flowing, and the oxygen flows from bottom to top and mixes quickly and fully with the sea- water, and is dissolved in the seawater efficiently. The water outlet is communicated to the bottom portion of the aquaculture cabin, so that the oxygen fed into the oxygen-enriched water in the cabin bottom may not be released for a long time under a pres- sure of the water in the aquaculture cabin. It is beneficial for fish in the aquaculture cabin to grow in the water with the most suitable oxygen content, the breeding density of the fish in the aquaculture cabin is greatly improved, and the breeding efficiency and income are improved.
BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly describe embodiments of the present invention or technical schemes in the prior art, drawings required in the embodiments are briefly introduced below. Apparently, the drawings in the following description are only some of the embodi-
ments of the present invention. For those of ordinary skill in the art, other drawings may also be obtained according to these draw- ings without creative work.
FIG. 1 is a structure schematic diagram of an oxygen cone in Embodiment I; FIG. 2 is an A-A sectional view of the oxygen cone in FIG. 1; and FIG. 3 is a structure schematic diagram of an aquaculture factory ship oxygenation system in Embodiment II.
In the drawings: 100-Oxygen cone, 200-Aquaculture factory ship oxygenation system, 1-Cone body, 2-Cone bottom, 3-Water in- let, 4-Water outlet, 5-Oxygen inlet, &-Oxygen outlet, 7-Safety valve, 8-Liquid level gauge, 9-Pressure gauge, 10-Support base, 11-Water discharge pipe, 12-Aquaculture cabin, 13-Water outlet pipe, 14-Water outlet remote control valve, 15-Pump, 16-Water out- let check valve, 17-Oxygen outlet cut-off valve, 18-Oxygen outlet pipe, 19-Oxygen inlet pipe, 20-Oxygen remote control valve, 21- Oxygen flow regulating valve, 22-Flow meter, 23-Oxygen cut-off valve, 24-Oxygen one-way valve, 25-Oxygen inlet bypass, 26-Bypass cut-off valve, 27-Water inlet pipe, 28-Water inlet remote control valve, 29-Water flow regulating valve.
DETAILED DESCRIPTION OF THE EMBODIMENTS The technical schemes in the embodiments of the present in- vention are clearly and completely described below with reference to the drawings in the embodiments of the present invention. Ap- parently, the embodiments described are only a part of the embodi- ments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other em- bodiments obtained by those of ordinary skill in the art without creative work shall fall within a scope of protection of the pre- sent invention.
The purpose of the present invention is to provide an oxygen cone and an aquaculture factory ship oxygenation system, as to solve technical problems that an existing oxygenation apparatus is poor in oxygen-increasing effect, and short in service life.
In order to make the above purposes, features and advantages of the present invention more clearly understood, the present in- vention is further described in detail below with reference to the drawings and specific embodiments.
Embodiment I 5 As shown in FIG. 1-FIG. 2, this embodiment provides an oxygen cone 100, including a cone body 1 and a cone bottom 2, wherein a lower end of the cone body 1 may be detachably connected with an upper end of the cone bottom 2, and the interior of the cone body 1 is communicated with the interior of cone bottom 2 and forms a chamber in which oxygen fully contacts with seawater and is dis- solved in the seawater.
By a split design, the difficulty of manu- facture is reduced, and it is also convenient for cleaning sea creatures in the oxygen cone 100, so the oxygen-increasing effect is improved, and the service life is prolonged.
The cone body 1 is connected with the cone bottom 2 by a flange, the detaching and mounting are convenient, and it is convenient for cleaning and maintaining.
The oxygen cone 100 is made of a colorless, odorless, and non-toxic polypropylene material, this material may not cause harm to fish, and is not easy to grow the sea creatures, conven- ident for cleaning, not easy to be corroded, and durable.
The upper end of the cone body 1 is provided with a water inlet 3, which is used to communicate with a water outlet pipe group of an aquacul- ture cabin 12, and imports water in the aquaculture cabin 12 into the cone body 1. A side wall of the cone body 1 is provided with an oxygen inlet 5 for communicating with the outside world, and the oxygen inlet 5 is arranged close to the upper end of the cone body 1 and is used to feed oxygen in an oxygen supply apparatus into the cone body 1, as to oxygenate a water body in the aguacul- ture cabin 12 in the cone body 1. Seawater flows downwards rapidly after entering the water inlet 3, so that the oxygen is quickly and fully mixed with the seawater and dissolved in the seawater efficiently, the dissolved oxygen efficiency is greatly improved.
The side wall of the cone body 1 is provided with a water outlet 4, and the water outlet 4 is closed to the cone bottom 2, and used to connect and communicate with a water inlet pipe group of the aquaculture cabin 12, and feed the water mixed with the oxygen in the cone body 1 into a bottom portion in the aquaculture cabin 12,
as to achieve the oxygenation and water circulation. The water in- let 3 is close to the upper end of the cone body 1, which is con- venient for feeding upper layer water of the aquaculture cabin 12 into the cone body 1 to increase oxygen. The water outlet 4 is close to the lower end of the cone body 1, which is convenient for feeding oxygenated water into a lower layer of the aquaculture cabin 12, so that the oxygen in the oxygen-enriched water fed into the cabin bottom may not be released for a long time under a water pressure in the aquaculture cabin 12, it is more beneficial to growth of fish in the aquaculture cabin 12 in breeding water with the most suitable oxygen content, and the amount of dissolved oxy- gen may be adjusted by controlling the pressure and oxygen intake in the oxygen cone 100, as to improve the breeding density and breeding efficiency of the fish in the aquaculture cabin 12.
Specifically, a water inlet flange is mounted at the water inlet 3, a water outlet flange is mounted at the water outlet 4, and the water inlet flange and the water outlet flange are inte- grally injection-formed with the cone body 1, which is convenient for processing.
The cone body 1 is cone-shaped, and the diameter and wall thickness of the cone body 1 are both gradually increased from top to bottom. According to a principle design of a pressure vessel, the material is saved, the cost is reduced, the weight is greatly reduced, and at the same time, while the seawater enters the cone body 1, with the expansion of the cone body 1, the seawater forms a spray shape in the process of rapid downward flowing, and the oxygen flows from bottom to top. Under the spraying of spray- shaped seawater, the oxygen is rapidly and fully mixed with the seawater, and dissolved in the seawater efficiently. The lower end of the cone bottom 2 is provided with a water discharge pipe 11 and equipped with a water discharge cut-off valve, which is used to control on-off of a water flow in the water discharge pipe 11. While the sea creatures in the oxygen cone 100 are cleaned or it is maintained, the water discharge cut-off valve is opened, as to discharge the water in the oxygen cone 100. A lower bottom surface of the cone bottom 2 is further provided with a support base 10, and the support base 10 is used to support the oxygen cone 100.
Preferably, the wall thickness of the entire oxygen cone 100 is calculated according to a formula: PD 4 e= is] The side wall, close to a lower part of the oxygen inlet, of the cone body 1 is provided with an oxygen outlet 6 for communi- cating with the water outlet pipe group, as to import the oxygen that is not dissolved in the water in the cone body 1 into the wa- ter outlet pipe group of aguaculture cabin 12 to re-mix with the water, and form secondary dissolved oxygen.
The oxygen cone 100 provided in this embodiment further in- cludes a pressure gauge 9, a liquid level gauge 8 and a safety valve 7. The pressure gauge 9 is mounted on the side wall of the cone body 1 and is close to the cone bottom 2, and a test end ex- tends into the cone body 1 and is used to detect a pressure in the cone body 1. The liquid level gauge 8 is mounted on the side wall of the cone body 1, and a test end extends into the cone body 1 and is used to detect a liquid level height in the cone body 1, namely it shows a volume ratio of the water and oxygen in the oxy- gen cone 100. The safety valve 7 is mounted on the side wall of the cone body 1 and used to release the pressure inside the cone body 1. While the pressure inside the oxygen cone 100 exceeds 3.5 bar, the safety valve 7 is opened automatically to release the in- ternal pressure of the oxygen cone 100, as to guarantee the safety of the system.
Embodiment II As shown in FIG. 3, this embodiment provides an aquaculture factory ship oxygenation system 200, including an aguaculture cab- in 12, a water outlet pipe group, a water inlet pipe group, an ox- ygen supply pipe group, and the oxygen cone 100 in Embodiment TI, wherein both ends of the water outlet pipe group are respectively communicated to the aquaculture cabin 12 and the oxygen cone 100, and used to feed water in the aquaculture cabin 12 into the oxygen cone 100. Both ends of the water inlet pipe group are respectively communicated to the aquaculture cabin 12 and the oxygen cone 100, and used to feed oxygen-enriched water in the oxygen cone 100 into a bottom portion in the aquaculture cabin 12. Both ends of the ox-
ygen supply pipe group are respectively communicated to the oxygen cone 100 and an oxygen supply apparatus, and used to feed oxygen in the oxygen supply apparatus into the oxygen cone 100. Specifically, the water outlet pipe group includes a water outlet pipe 13, and a water outlet remote control valve 14, a pump 15 and a water outlet check valve 16 which are sequentially mount- ed on the water outlet pipe 13. The water outlet remote control valve 14 is arranged close to the aquaculture cabin 12. Both ends of the water outlet pipe 13 are respectively communicated to an upper end of the aquaculture cabin 12 and a water inlet 3, thereby upper layer water in the aquaculture cabin 12 is imported into the oxygen cone 100. The water outlet remote control valve 14 may be remotely controlled, and control on-off of a water flow in the wa- ter outlet pipe group. In use, the water outlet remote control valve 14 is directly opened or closed remotely by one key, and the on-off control of a waterway of the water outlet pipe 13 may be achieved. The pump 15 is used to pump the upper layer water in the aquaculture cabin 12 into the cone body 1. The water outlet check valve 16 is used to prevent the water in the cone body 1 from re- versely flowing into the pump 15. An oxygen outlet 6 is communi- cated with the water outlet pipe 13 by an oxygen outlet pipe 18, and the oxygen outlet pipe 18 is provided with an oxygen outlet cut-off valve 17, which is used to control on-off of the oxygen in the oxygen outlet pipe 18, thereby the undissolved oxygen in the upper layer of the oxygen cone 100 is fed into the water outlet pipe 13, as to achieve secondary dissolved oxygen.
The water inlet pipe group includes a water inlet pipe 27, and a water inlet remote control valve 28 and a water flow regu- lating valve 29 which are sequentially mounted on the water inlet pipe 27, and the water inlet remote control valve 28 is arranged close to the aquaculture cabin 12. Both ends of the water inlet pipe 27 are respectively communicated with a lower end of the aq- uaculture cabin 12 and a water outlet 4, thereby it is convenient for importing oxygen-enriched water in the oxygen cone 100 into a lower layer in the aquaculture cabin 12. The water inlet remote control valve 28 may be remotely controlled, and control on-off of a water flow in the water inlet pipe 27. The water flow regulating valve 29 is used to adjust a flow rate of the water in the water inlet pipe 27, thereby the pressure in the oxygen cone 100 is ad- justed, so that the oxygen may be fully dissolved in the seawater in the oxygen cone 100 under the pressure.
The oxygen supply pipe group includes an oxygen inlet pipe 19, and an oxygen remote control valve 20, an oxygen flow regulat- ing valve 21, a flow meter 22, an oxygen cut-off valve 23 and an oxygen one-way valve 24 which are sequentially mounted on the oxy- gen inlet pipe 19. The oxygen remote control valve 20 is arranged close to the aquaculture cabin 12. Both ends of the oxygen inlet pipe 19 are respectively communicated to an oxygen inlet 5 and the outside world, so that the external oxygen may be fed into the ox- ygen cone 100. The oxygen remote control valve 20 may be remotely controlled, and control on-off of the oxygen in the oxygen inlet pipe 19. The oxygen flow regulating valve 21 is used to adjust a flow rate of the oxygen in the oxygen inlet pipe 19, and under a pressure of 2.5 bar and within a maximum dissolved oxygen range, the dissolved oxygen concentration is controlled by the oxygen flow regulating valve 21. The flow meter 22 measures the oxygen entering the oxygen cone 100. The oxygen cut-off valve 23 tempo- rarily controls on-off of the oxygen in the oxygen inlet pipe 19. The oxygen one-way valve 24 prevents the water in the cone body 1 from flowing into the oxygen inlet pipe 19 to damage the flow me- ter 22. An oxygen inlet bypass 25 is further included, both ends of the oxygen inlet bypass 25 are communicated with the oxygen in- let pipe 19, one end of the oxygen inlet bypass 25 is located be- tween the oxygen remote control valve 20 and the oxygen flow regu- lating valve 21, and the other end is located between the oxygen cut-off valve 23 and the oxygen one-way valve 24. The oxygen inlet bypass 25 is provided with a bypass cut-off valve 26, which is used to control on-off of the oxygen in the oxygen inlet bypass 25, as to stand by while a certain valve on the oxygen inlet pipe 19 fails.
During the adjustment process, the liquid level in the oxygen cone 100 and the working pressure of the system are jointly deter- mined by the water flow regulating valve 29 and the oxygen flow regulating valve 21.
In this description, specific examples are used to illustrate the principles and implementation modes of the present invention, and the descriptions of the above embodiments are only used to help understand methods of the present invention and a core idea thereof; and at the same time, for those of ordinary skill in the art, there may be changes in the specific implementation modes and application scopes according to the idea of the present invention.
In conclusion, the content of this description should not be con- strued as limiting the present invention.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL2031606A NL2031606B1 (en) | 2022-04-15 | 2022-04-15 | Oxygen cone and aquaculture factory ship oxygenation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL2031606A NL2031606B1 (en) | 2022-04-15 | 2022-04-15 | Oxygen cone and aquaculture factory ship oxygenation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL2031606B1 true NL2031606B1 (en) | 2023-01-17 |
Family
ID=82594897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL2031606A NL2031606B1 (en) | 2022-04-15 | 2022-04-15 | Oxygen cone and aquaculture factory ship oxygenation system |
Country Status (1)
| Country | Link |
|---|---|
| NL (1) | NL2031606B1 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208462732U (en) * | 2018-06-25 | 2019-02-05 | 中山伊沃特水产设备科技有限公司 | A kind of high usage dissolved oxygen cone |
| CN210445369U (en) * | 2019-07-19 | 2020-05-05 | 广州中航环保科技有限公司 | Oxygen-recyclable oxygenation system |
| CN114304045A (en) * | 2022-01-13 | 2022-04-12 | 莱州金生水环保科技有限公司 | Normal pressure oxygen dissolving device |
-
2022
- 2022-04-15 NL NL2031606A patent/NL2031606B1/en active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208462732U (en) * | 2018-06-25 | 2019-02-05 | 中山伊沃特水产设备科技有限公司 | A kind of high usage dissolved oxygen cone |
| CN210445369U (en) * | 2019-07-19 | 2020-05-05 | 广州中航环保科技有限公司 | Oxygen-recyclable oxygenation system |
| CN114304045A (en) * | 2022-01-13 | 2022-04-12 | 莱州金生水环保科技有限公司 | Normal pressure oxygen dissolving device |
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