CN203968965U - A kind of aerosol disperser - Google Patents
A kind of aerosol disperser Download PDFInfo
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- CN203968965U CN203968965U CN201320609446.5U CN201320609446U CN203968965U CN 203968965 U CN203968965 U CN 203968965U CN 201320609446 U CN201320609446 U CN 201320609446U CN 203968965 U CN203968965 U CN 203968965U
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Abstract
The utility model relates to a kind of aerosol disperser, aerosol disperser is hollow cylindrical tube, comprise left base, right base, cylindrical tube, cavity, air inlet pipe and peplos, peplos is along the external diameter of cylindrical tube, tightly cover cylindrical tube skin, peplos is followed successively by fishing line stratum reticulare from outermost layer to innermost layer, nonwoven layer, micro-nano rete and basic unit, the top of the body of aerosol disperser is along axis direction be arranged in parallel one or two grooves, groove center arranges the venthole connecting with cavity, enter the gas of cavity from air inlet pipe, evenly spread and see through peplos in groove by venthole and produce micro-nano aerosol.By Separated oxygen plants (pressure 1.5--7Kg/cm
2) or air compressor machine, offering multiple aerosol dispersers, each aerosol disperser can produce the aerosol of micro/nano level at 0.01-0.05MPa pressure.
Description
Technical field
The utility model relates to aeration system in aquaculture, relates in particular to a kind of nanoscale aerosol disperser.
Background technology
Aquatic animal lives in water body environment, relies on food and dissolved oxygen to depend on for existence.If there is no enough dissolved oxygens in water body environment, aquatic products species are easily ill, even dead.Particularly at fish, shrimp, soft-shelled turtle, crab high-density breeding, the number of oxygen in water is determining that water body holds biological density, even if water quality is good, the a large amount of nutrition and the organic substance that bring due to feed for nursing and animal excrements, pool also there will be low dissolved oxygen, so it is particularly important that oxygenation seems, use aerator can effectively supplement the dissolved oxygen in pool.
The general pond with waterwheel aerator, the little anoxic of upper strata water body, but be difficult to provide sufficient oxygen at the bottom of pond.At the bottom of pond, bleeding technique has utilized the pipeline that pond bottom is laid just, being directly passed to pond bottom containing oxygen air, from the bottom of pond up to the loose gas supplemental oxygen of water body, make bottom water body equally keep high dissolved oxygen, prevent the water body Asia anoxic that bottom anoxic causes.
The oxygenation pattern generally using is that bottom aeration system passes through Roots blower, through (gas stone, aeration board, the general designation air dispersion devices such as nanotube) disperser, air is inputted in pond waters, and bubble breaks, and oxygen diffuse is entered in water, reaches the effect of oxygenation.The quality of oxygenation effect depends on the quality of terminal disperser, otherwise the finer oxygenation effect of the bubble going out is poorer.Aeration, moves both vertically water body up and down, and the abundant dissolved oxygen that water body top layer photosynthesis produces is input to the bottom in pond, improves rapidly the dissolved oxygen levels of bottom water body.The raising of dissolved oxygen levels, be conducive to the oxidation reaction in pond, organic decomposition at the bottom of quickening pond, effectively reduce the concentration of the poisonous and harmful substances such as sulphide, nitrite, ammonia nitrogen, reach diseases prevention and the three-dimensional effect of utilizing breeding water body, promote battalion's bottom life to fish, the growth result of the cultivated animals such as shrimp, swimming crab, river crab and shellfish, soft-shelled turtle.But, air is inputted in pond water through gas tube by roots blower, need 24 hours running roots blowers (power consumption), the wind of output is hot blast, oxygen consumption in input water, and oxygenation effect is not obvious, air in input water is not through filtering, easily noxious bacteria is brought in water, increased the danger (medicine of must fishing) of fish disease, i.e. power consumption and risky.
Along with the development of nanometer technology, nanotube bleeding technique is day by day ripe, adopting " PVC " plastic tube is common air chamber, be connected on high molecule micropore nanometer aerosol disperser by reducing, the pipeline that utilizes pond bottom to lay, produces " V " type atomizing type bubble flow in the bottom of the water surface, being directly passed to pond bottom containing oxygen air, from at the bottom of pond up to water body supplemental oxygen, make bottom water body equally keep high dissolved oxygen.And contaminated water is purified, the immunity of aquatic products species also improves greatly, and reproduction speed also has significant effect, and aquaculture cost is than conventional cultivation volume increase 10% to 15%, cost reduction 5% to 10%.But the pore of Yin Na meter aerosol disperser is larger, and the gas of actual output does not reach micro-nano mist, neither optimal oxygenation instrument.
In addition, existing oxygenation pattern is inputted liquid pure oxygen in breeding pool by disperser with oxygen tower (or liquid oxygen tank), reaches oxygenation object.But cost is high, to transport very inconveniently, loss is large.And the best disperser in market is ceramic wafer disperser at present, need to could normally give vent to anger under 0.15-0.2MPa, while specifically use, oxygen depletion is very large, and pressure requires high, and cost is very high, and aquaculture cost increases.So it is many that this pattern is used in industrial aquaculture.
In prior art, nanometer micro-bubble comprises the small porous membrane of manufacturing by physics extension method by multi-layer structure material, and the small porous membrane porosity is 10%-80%, and average pore opening is 0.01-2um.This small porous membrane can cause the air-making of certain pressure the small air foam of 50-500nm.But, in the larger waters of area, need the pressure of gas very large, just can satisfy the demands, so just strengthen the requirement to oxygen machine.
Utility model content
In order to address the above problem, the purpose of this utility model is to provide a kind of aerosol disperser, can, with in low-pressure energy-saving type oxygenerator and air compressor machine situation, for the aerosol of micro/nano level is provided, make to have in water the dissolved oxygen of higher concentration under water.
Specifically; the utility model discloses a kind of aerosol disperser; this aerosol disperser is hollow cylindrical tube; comprise left base, right base, cylindrical tube, cavity, air inlet pipe and peplos; peplos is along the external diameter of cylindrical tube; tightly cover cylindrical tube skin, peplos is followed successively by fishing line stratum reticulare, nonwoven layer, micro-nano rete and basic unit (basic unit comprises class nonwoven layer and thin nylon wire protective layer) from outermost layer to innermost layer.The top of the body of aerosol disperser is along axis direction be arranged in parallel one or two grooves, groove center arranges the venthole connecting with cavity, enter the gas of cavity from air inlet pipe, evenly spread and see through peplos in groove by venthole and produce micro-nano aerosol.The Lower Half of the body of this aerosol disperser fastens the circular-arc circular arc cover of half, for stoping gas to be revealed from the Lower Half of aerosol disperser.
The minimum atmospheric pressure numerical value that this aerosol disperser produces micro-nano aerosol is 0.01-0.05MPa.
This micro-nano rete is the micro-nano film that dry type is extended, and the porosity of this micro-nano rete is 5-50%, and thickness is 6-40 micron, and average pore opening is 0.003-1 nanometer.
The two ends of this cylindrical tube are connected with left base, right whorl of base, and left base is sealing shroud, and right base central authorities are provided with air inlet, connect the air inlet pipe being connected with pipeline.
The degree of depth of this groove is 1/4-1/2 of body pipe thickness, and the length of groove is less than the length of body.
The utility model also discloses a kind of aerosol pipe network, comprises multiple aerosol dispersers, and multiple aerosol dispersers are set to plum blossom-shaped or " non-" word shape.
Technique effect of the present utility model:
Each aerosol disperser can produce the aerosol of micro/nano level in the case of the oxygen of 0.01-0.05MPa or air pressure, has reduced the requirement of oxygenerator, efficient energy-saving.Particularly Separated oxygen plants, it is for subsequent use organizing oxygenerator more, wherein one group of oxygenerator breaks down, and starts immediately other and organizes oxygenerator for subsequent use, can ensure oxygen gas-supplying incessantly.
Brief description of the drawings
Fig. 1 is the system block diagram of the utility model application;
Fig. 2 is that aerosol disperser of the present utility model does not add circular arc cover schematic diagram;
Fig. 3 is aerosol disperser circular arc cover schematic perspective view of the present utility model;
Fig. 4 is that aerosol disperser of the present utility model adds circular arc cover schematic diagram;
Fig. 5 is the cutaway view of aerosol disperser of the present utility model;
Fig. 6 is aerosol disperser body vertical view of the present utility model;
Fig. 7 is that Fig. 5 is at AA ' direction sectional view;
Fig. 8 is Fig. 7 partial enlarged drawing;
Fig. 9 is left base support figure of the present utility model;
Figure 10 is right base support figure of the present utility model;
Figure 11 is aerosol pipe network layout of the present utility model.
Embodiment
The utility model is applied to aerosol under water and produces system, and this system comprises gas supply station 1, first order control device 2, second level control device 3, pond 4, aerosol pipe network, pipeline 6,7,8 compositions.Wherein aerosol pipe network is made up of with various arrangement modes multiple aerosol dispersers.
Below system chief component is elaborated:
1, gas supply station: gas supply station 1 adopts various ways supply air or oxygen.
First kind of way: air compressor machine air feed.Adopt inorganic oil type air compressor 1, then reduce temperature through first order control device cold air machine, comprise the devices such as filter by second level control device again, the clean cold air of certain pressure and temperature will be there is, through piping, the aerosol in input pond produces pipe network, then by micro-nano aerosol disperser output ultra micro minute bubbles, be dispersed in water, oxygenation effect improves greatly.Improve more than 2 PPM dissolved oxygen than roots blower, can improve cultured output 15%-20%, energy-conservation, reduction of discharging, volume increase, environmental protection.
The second way: Separated oxygen plants, feature is failure rate is low, especially overall failure rate very low, easily maintenance, when maintenance, not affecting machine normally uses, be used in aquaculture very safe, low, easy to maintenance by electric energy consumption very lower security, energy-conservation, reduction of discharging, expense.
The split type pressure swing adsorption oxygen of energy saving type (Pressure Swing Adoption, PSA), in oxygen and nitrogen mixture with the method for the physics oxygen of withdrawing deposit, so do not produce pollutant, the oxygen of keeping the safety in production.One group to ten groups independently oxygenerator (7Lpm--21Lpm bodge) be assembled in a rack, every group of oxygenerator gas outlet is connected on a house steward, each group oxygenerator works alone, one group of fault does not affect other oxygenerators and normally works, pressure by first control device 2 to oxygen, flow, temperature is controlled, by second control device 3, oxygenerator is monitored, feedback and warning, wherein one group of oxygenerator is for subsequent use group, once wherein one group of oxygenerator breaks down, start immediately other oxygenerators for subsequent use, so just ensure oxygen gas-supplying incessantly.Oxygen purity is 90-93%, and it is 1.5--7Kg/cm that oxygen is supplied with pressure
2, it is 5Bar that oxygen is suitable for pressure.General five groups of oxygenerators, the flow that produces oxygen is that 50L/ divides, power consumption 2.9Kw.
2, aerosol disperser
The best disperser in market is ceramic wafer disperser at present, and its under 0.15-0.2MPa pressure (maximum can be born 0.4MPa) could normally be given vent to anger, and produces microbubble, if multiple disperser is just very high to the requirement of oxygenerator.
Micro-nano aerosol disperser of the present utility model, feature is under 0.01-0.05MPa minute-pressure, to get final product output aerosol, that is to say, the minimum atmospheric pressure that aerosol disperser produces micro-nano aerosol is that 0.01-0.05MPa(maximum can be born 0.4MPa).
Micro-nano aerosol disperser of the present utility model, supplying with pressure at oxygenerator oxygen is 1.5--7Kg/cm
2situation under, can have multiple micro-nano aerosol dispersers arranged together, and can produce aerosol.Low pressure produce the micro-nano aerosol disperser of aerosol, can use air compressor machine pattern in the past, also can change and oxygenerator can not be used at present to the drawback in aquaculture.Adopt Separated oxygen plants or air compressor machine no matter be, connect micro-nano aerosol disperser, can produce micro-nano aerosol in low pressure, so just can reduce the requirement of gas supply station, needn't require the oxygenerator of large-scale oxygen tank or high pressure can reach the object that produces aerosol, thereby the safety of realization, energy-saving and emission-reduction, low energy consumption, high efficiency, in addition, for (the feedwater in 24 hours of the at present domestic water circulation breeding way generally using, the mode of 24 drainings obtains cultivating required dissolved oxygen) can also interimly realize the cultivation of cutting off the water, cut off the water as 6-12 hour, feedwater in 1-2 hour, energy-saving and emission-reduction more.
Describe the structure of aerosol disperser in detail below by accompanying drawing:
Fig. 2 is that aerosol disperser of the present utility model does not add circular arc cover schematic diagram; Fig. 3 is aerosol disperser circular arc cover schematic perspective view of the present utility model; Fig. 4 is that aerosol disperser of the present utility model adds circular arc cover schematic diagram; Fig. 5 is the cutaway view of aerosol disperser of the present utility model; Fig. 6 is aerosol disperser body vertical view of the present utility model; Fig. 7 is that Fig. 5 is at AA ' direction sectional view; Fig. 8 is Fig. 7 partial enlarged drawing.
Referring to Fig. 2, aerosol disperser 5 is hollow cylinder shape pipe, cylinder shape pipe comprises left base 21, right base 22, cylindrical tube 57, cavity 59 and peplos, wherein peplos is along the external diameter of cylindrical tube, tightly cover cylindrical tube 57 skins, whole peplos, by four layers or more multi-layered composition, is followed successively by fishing line stratum reticulare 51, nonwoven layer 52, micro-nano rete 53 and basic unit 54, referring to Fig. 7 from outermost layer to innermost layer.Wherein, micro-nano rete 53 adopts dry-type and physical extend nanometer film or adopt small porous membrane of the prior art.
The peplos that adopts the small porous nanometer film of physical dry production, the gas that can make aerosol disperser produce is vaporific ultra micro minute bubbles, the characteristic of this small porous nanometer film is that water and microorganism can't pass but gas can pass through.The porosity of film is 5-50%, and thickness is 6-40 micron, and average pore opening is 0.003-1 nanometer, and rete number is (can be different with fingerling according to water depth) between 2-18 layer, and outermost layer fishing line layer is protective layer.All peplos gross thickness are no more than 2-4 millimeter, and gross thickness is very thin, and gas can appear (0.01-0.05MPa) and produce ultra micro minute bubbles under very little pressure, reaches output ultra micro rill under minimum pressure.
Than current best disperser ceramic wafer disperser, aerosol disperser can be saved oxygen more than 50%, because ceramic wafer thickness 0.9-1.2cm thickness is thicker, need the pressure of 0.15-0.2MPa just can give vent to anger, the bubble that average pore opening is 1-3 nanometer output is larger.So that aerosol disperser can really be realized is energy-conservation, reduce discharging, improve dissolved oxygen, reaches environmental protection, high efficiency object.
Basic unit and thin nylon wire protective layer 54 play diaphragm: the one, prevent from because pressure is excessive, nanometer film being destroyed, and the 2nd, play gas dispersion effect.Outer nonwoven layer 52 is by gas dispersion, and decompression, ventilative.Fishing line stratum reticulare 53 can be network structure, also can, for fishing line spiral winding forms, shield.
The two ends of cylindrical tube 57 be threaded left base 21, right base 22, right base 22 central authorities are provided with gas outlet, connect escape pipe 23, are connected with pipeline 8.
For the facility of production and processing and installation, the both ends of aerosol disperser 3 bodys 57 are processed as symmetrical same shape, and left base 21 can be seal cover, and right base 22 central authorities are provided with air inlet, and screw thread or buckle are installed into tracheae 23.Like this, in processing or later stage assembling, needn't distinguish left and right end portions, left base 21 and right base 22 can be threaded in the both ends of body 57, referring to Fig. 9, Figure 10 again.Body length, pipe thickness can according to circumstances be selected voluntarily.
Body 57 both ends are that slightly thin round platform protrudes, protrusion can be provided with external screw thread, left base 21 and right base 22 are with internal thread, diameter coordinates with the external screw thread at body 57 both ends, or, body 57 both ends are that slightly thin round platform protrudes, and left base 21 and right base 22 increase after sealing ring between the two, are connected with body 57 both ends buckles.Left base 21 and right base 22 can also be designed to other shapes, are connected to form aerosol pipe network to facilitate with other aerosol dispersers, also can directly make holistic exterior fixing rack, reach the effect of fixing aerosol disperser.
Fig. 3 is aerosol disperser circular arc cover schematic perspective view, it is 55 semicircular arc that circular arc overlaps, for being fastened on the bottom of aerosol disperser 5, referring to Fig. 4, the effect of circular arc cover is to stop gas to discharge from Lower Half (comprising bottom), and can only discharge gas from the first half, really can play energy-conservation oxygenation effect.In practice, if do not adopt circular arc cover, the words of also giving vent to anger in aerosol disperser bottom, if hydraulic pressure is little, can not produce bubble, if hydraulic pressure is large, the air-capacitor of output easily condenses in bottom, and the bubble after condensing is larger, the water surface of directly blowing out, a gas part for entirety output is that a minute bubbles part is air pocket, like this, the gas discharging from Lower Half is often air pocket but not aerosol, affects the concentration in oxygen dissolved water, so circular arc cover 55 ensures to produce aerosol but not bubble.
Fig. 5 is the cutaway view of aerosol disperser of the present utility model, and the top of body 57 is provided with a groove 58 along axis direction, or two parallel grooves 58, referring to Fig. 6, Fig. 7, Fig. 8, for the even diffusion of gas.The degree of depth of groove 58 is 1/4-1/2 of body 57 pipe thicknesses, and the length of groove 58 is less than the length of body 57, and after fixing with left and right base 21,22, groove 58 all exposes and is advisable.Groove 58 center is provided with a venthole 56, and the diameter of venthole 56 is grade, and venthole 56 connects with the cavity 59 of body 57.Like this, the gas that is derived from gas supply station enters cavity 57 from air inlet pipe 23, then passes through venthole 56, enters groove 58, and then, the gas in groove 15, sees through peplos, forms nano level aerosol in water outside.
In addition, because the weight of disperser own is low weight, can not sink in water body and can swim in upper above, so, in aerosol disperser, be provided with counterweight, counterweight can be positioned in body, and be fixed on bottom in body, like this, counterweight just can allow disperser reach required weight, thereby be stabilized in water body assigned address, to ensure at water bottom dispersion gas and to reach optimum efficiency.
This counterweight length is hollow circuit cylinder length of tube, take body 1/4-1/3 volume, shape is not limit, with can be fixed in disperser cavity 59 again can not barrier gas circulation, materials'use iron or stainless steel, the most handy thicker Mold for Plastics plated film seals to prevent from getting rusty and the water that becomes rusty oozes out.
For the utility model is described better, introduce the production method of aerosol disperser:
1, select a hollow cylinder shape pipe, pipe range is 10cm-2m, and pipe two ends are that round platform protrudes, and protrude for buckle or external screw thread;
2, at the top of body, along axis direction, a groove or two parallel grooves 58 are set, for the even diffusion of gas, wherein, the degree of depth of groove is 1/4-1/2 of body pipe thickness, the length of groove is less than the length of body; Referring to accompanying drawing 5,6, the top of the body 57 of aerosol disperser 5 is along axis direction be arranged in parallel a groove 58 or two grooves 58, groove 58 centers arrange the venthole 56 connecting with the cavity of aerosol disperser, and the gas of cavity is evenly spread and sees through peplos in groove 58 by venthole and forms nano level aerosol.
3, be provided with a venthole at the center of groove, the diameter of venthole is grade, and the cavity of venthole and body connects, referring to Fig. 6,7,8;
4, along the external diameter of cylindrical tube, cover successively basic unit, micro-nano rete, nonwoven layer, fishing line stratum reticulare from innermost layer to outermost layer, wherein, fishing line stratum reticulare is that network structure or fishing line spiral winding form.
5, circular arc cover circular-arc half is fastened on to the bottom of aerosol disperser; Referring to Fig. 4, the Lower Half of the body 57 of aerosol disperser 5 fastens the circular-arc circular arc cover 55 of half, for stoping gas to be revealed from the Lower Half of aerosol disperser 5;
6, the two ends of cylindrical tube 57 are protruded buckle and are connected or the left base that is threaded, right base, and wherein left base is seal cover, and right base central authorities are provided with air inlet, connect air inlet pipe 23, are connected with pipeline.
In addition, left base and right base can also be designed to various shapes, are connected to form aerosol pipe network to facilitate with other aerosol dispersers, and left base and right base also can directly be made holistic exterior fixing rack, reach and fix and the effect that is connected aerosol disperser.
Multiple aerosol dispersers can be set to plum blossom-shaped, also can be set to " non-" word shape, and the aerosol pipe network of composition, referring to Fig. 1, Figure 11.Aerosol tubular mesh shape is specifically determined according to the situation of each place to place.Between each aerosol disperser, can form fixed support by air inlet pipe 23 connected with each other, or each aerosol disperser interfixes by left and right base.The utility model also discloses a kind of aerosol pipe network, comprises multiple aerosol dispersers, and multiple aerosol dispersers are set to plum blossom-shaped or " non-" word shape.
Claims (10)
1. an aerosol disperser, it is characterized in that, this aerosol disperser is hollow cylindrical tube, comprise left base, right base, cylindrical tube, cavity, air inlet pipe and peplos, peplos is along the external diameter of cylindrical tube, tightly cover cylindrical tube skin, peplos is followed successively by fishing line stratum reticulare from outermost layer to innermost layer, nonwoven layer, micro-nano rete and basic unit, the top of the body of aerosol disperser is along axis direction be arranged in parallel one or two grooves, groove center arranges the venthole connecting with cavity, enter the gas of cavity from air inlet pipe, evenly spread and see through peplos in groove by venthole and produce micro-nano aerosol.
2. aerosol disperser as claimed in claim 1, is characterized in that, the Lower Half of the body of this aerosol disperser fastens the circular-arc circular arc cover of half, to stop gas to be revealed from the Lower Half of aerosol disperser.
3. aerosol disperser as claimed in claim 2, is characterized in that, the minimum atmospheric pressure numerical value that this aerosol disperser produces micro-nano aerosol is 0.01-0.05Mpa.
4. the aerosol disperser as described in claim 1,2 or 3, is characterized in that, this micro-nano rete is the micro-nano film that dry type is extended, and the porosity of this micro-nano rete is 5-50%, and thickness is 6-40 micron, and average pore opening is 0.003-1 nanometer.
5. the aerosol disperser as described in claim 1,2 or 3, is characterized in that, the two ends of this cylindrical tube are connected with left base, right whorl of base, and left base is sealing shroud, and right base central authorities are provided with air inlet, connects the air inlet pipe being connected with pipeline.
6. the aerosol disperser as described in claim 1,2 or 3, is characterized in that, the degree of depth of this groove is 1/4-1/2 of body pipe thickness, and the length of groove is less than the length of body.
7. the aerosol disperser as described in claim 1,2 or 3, is characterized in that, in this aerosol disperser, is also provided with counterweight, is fixed in aerosol disperser cavity.
8. the aerosol disperser as described in claim 1,2 or 3, is characterized in that, multiple these aerosol dispersers are set to plum blossom-shaped or " non-" word shape, the aerosol pipe network of composition.
9. the aerosol disperser as described in claim 1,2 or 3, is characterized in that, forms fixed support connected with each other, or interfix by left and right base between multiple these aerosol dispersers by air inlet pipe.
10. an aerosol pipe network, is characterized in that, comprises multiple aerosol dispersers, and multiple aerosol dispersers are set to plum blossom-shaped or " non-" word shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320609446.5U CN203968965U (en) | 2013-09-29 | 2013-09-29 | A kind of aerosol disperser |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320609446.5U CN203968965U (en) | 2013-09-29 | 2013-09-29 | A kind of aerosol disperser |
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| CN203968965U true CN203968965U (en) | 2014-12-03 |
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| CN201320609446.5U Expired - Lifetime CN203968965U (en) | 2013-09-29 | 2013-09-29 | A kind of aerosol disperser |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103503822A (en) * | 2013-09-29 | 2014-01-15 | 青岛正商微纳米技术有限公司 | Aerial fog diffuser and production method |
| CN115636518A (en) * | 2022-10-28 | 2023-01-24 | 浙江尚理环保科技有限公司 | Efficient water oxygenation method |
-
2013
- 2013-09-29 CN CN201320609446.5U patent/CN203968965U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103503822A (en) * | 2013-09-29 | 2014-01-15 | 青岛正商微纳米技术有限公司 | Aerial fog diffuser and production method |
| CN115636518A (en) * | 2022-10-28 | 2023-01-24 | 浙江尚理环保科技有限公司 | Efficient water oxygenation method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141203 Effective date of abandoning: 20150225 |
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| RGAV | Abandon patent right to avoid regrant |