CN102246719B - Symmetrically arranged propeller type self-air compression, self-air suction and self-water absorption aerator - Google Patents
Symmetrically arranged propeller type self-air compression, self-air suction and self-water absorption aerator Download PDFInfo
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- CN102246719B CN102246719B CN2011100925564A CN201110092556A CN102246719B CN 102246719 B CN102246719 B CN 102246719B CN 2011100925564 A CN2011100925564 A CN 2011100925564A CN 201110092556 A CN201110092556 A CN 201110092556A CN 102246719 B CN102246719 B CN 102246719B
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- propeller
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- 238000005276 aerator Methods 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract description 36
- 230000006835 compression Effects 0.000 title abstract description 5
- 238000007906 compression Methods 0.000 title abstract description 5
- 238000010521 absorption reaction Methods 0.000 title abstract 2
- 230000006698 induction Effects 0.000 claims description 43
- 230000001914 calming effect Effects 0.000 claims description 17
- 238000005096 rolling process Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 abstract description 3
- 238000005273 aeration Methods 0.000 abstract description 2
- 238000010008 shearing Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 9
- 239000001301 oxygen Substances 0.000 description 9
- 229910052760 oxygen Inorganic materials 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 238000006213 oxygenation reaction Methods 0.000 description 6
- 238000009395 breeding Methods 0.000 description 3
- 230000001488 breeding effect Effects 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000003434 inspiratory effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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Abstract
The invention discloses a symmetrically arranged propeller type self-air compression, self-air suction and self-water absorption aerator. A motor fixed on a weight beam transmits power to a hollow shaft through a chain, and an internally helical blade conical air compression wheel with a through hole at bottom is arranged on the upper end face of the hollow shaft. A hollow sleeve is sleeved outside the hollow shaft, the upper end face of the hollow sleeve is connected with the weight beam, the other end of the weight beam is fixed with a floater, the lower end face of the hollow sleeve is connected with an air suction chamber, the tail end of the hollow sleeve is provided with a driving bevel gear, and two driven bevel gears are arranged on respective hollow output shafts respectively. The other ends of the hollow output shafts extend out of the air suction chamber, the tail ends of the hollow output shafts are provided with an impeller and a diffuser, and the extended part comprises the impeller and the diffuser and is enclosed by a deflector fixed on the air suction chamber. The water suction pipe, after entering from the bottom face of the air suction chamber, is divided into two parts, and the divided two pipes extend into the hollow output shafts respectively. In the invention, the air compression wheel is used for compressing air, the impeller is used for air suction, and the air intake volume is high; the adoption of the air suction pipe increases the air and liquid mixing and shearing action; and the aeration capacity is increased.
Description
Technical field
The present invention relates to aerator, be specifically related to a kind of symmetric arrangement propeller type from calm the anger, air-breathing, the suction aerator.
Background technology
Aerator is a kind of machine that often is applied to the fishery cultivating industry, and airborne " oxygen " is transferred to rapidly in the breeding water body, and it not only can solve the problem of the fish floating head that produces because of anoxic in the pond culture; And can eliminate pernicious gas, and promote the water body convective exchange, improve condition of water quality; Reduce feed coefficient, improve fishpond activity and primary productivity, thereby can improve breeding density; Increase the intensity of feeding of culturing object; Promote growth, per mu yield is increased substantially, fully reach and culture the purpose that increases income.The measure of being taked during the design aerator has: 1) utilize mechanical part to stir water body, promote convective exchange and interface to upgrade; 2) be aqueous dispersion fine mist, spray into gas phase, increase the contact area of water-gas; 3) through negative inspiratory pressure, be gas dispersion microbubble, be pressed in the water.
The aerator of selling in the market mainly contains: 1) paddle aerator; Increase the dissolved oxygen amount in the water through stirring water body and aeration principle; Oxygen transfer rate, dynamic efficiency all are superior to other types; Produce water lift and promote the effect that water body mixes, generally be used for the large-area pond culture of the depth of water more than 1 meter.Centrifugal whipping effect during impact and the water outlet when entry of 2) waterwheel aerator, the paddle of utilizing rotation evokes spray at the water surface; Promote airborne oxygen to dissolve in the water; Have good oxygenation and promote the effect that water body flows, be applicable to that mud is darker, area 1000 ~ 2540m
2The pond use.3) jet aerator, being formed a complete set of by immersible pump and jet pipe forms, and it is simple in structure, and the water in the water pump penetrates at a high speed from the nozzle of penetrating in the pipe.Produce negative pressure, inhale people's air, water is gentle to be mixed in mixing chamber, is extruded by anemostat then, and dissolved oxygen will be along with the current diffusion of rectilinear direction.The big deep water fishpond use of density is well suited for breeding fish.4) water-spraying oxygen-increasing machine utilizes pump handle water to send into and is contained in the middle part of the fishpond and the shower nozzle on bank, water is sprayed and is rainfall type fall, and water is contacted with air reach the purpose that increases dissolved oxygen.This machine only is suitable for the shallow water little pond.Also have artistic appreciating effect simultaneously, be applicable to that gardens or tourist district's crawl use.5) inflatable aerator, main frame are air compressor or fan blower.When filtered water of installing through the bottom after the air pressurized or micro porous pe pipe, discharge micro-bubble, in the process that bubble rises, part of oxygen has been dissolved in the water, forms water sports.This machine is fit to swimmer's pool to be used.Be characterized in that the oxygenation amount is bigger, shortcoming is that cost is higher.6) suction-type aerator, be utilize the rotation that pulls the plug impeller will in, lower layer of water is stirred and push ahead, stagnant water is become running water, and produces negative pressure, through the negative pressure pipe with air inhale the people deliver in, in lower floor's oxygen deprivation water.Thereby mixing force is strong, and is strong to the oxygen transfer rate of lower layer of water.
Summary of the invention
The purpose of this invention is to provide a kind of symmetric arrangement propeller type from calm the anger, air-breathing, suction aerator, improve oxygenation efficient.
In order to achieve the above object, the technical scheme of the present invention's employing is:
Motor is passed to hollow shaft through chain drive with power; The upper surface of hollow shaft is connected with the wheel bottom of calming the anger, and the wheel of calming the anger is a bullet that has internal helical blades, and the bottom through-hole of the wheel of calming the anger communicates with the hole of hollow shaft; The hollow shaft outside is with cannulated sleeve, and the upper surface of cannulated sleeve is connected with an end of the both sides arm beam of steelyard, and two arm beam of steelyard other ends are fixed with ball float respectively; Motor is fixed on the arm beam of steelyard; Between the two ends of cannulated sleeve and hollow shaft, rolling bearing is housed all; The lower surface of cannulated sleeve is connected with induction chamber; The hollow shaft end is equipped with initiatively conical gear, the initiatively driven bevel gear on conical gear and both sides engagement, and two driven bevel gears are contained in respectively on the end of hollow output shaft separately, and described three conical gears all are included in the induction chamber; Two hollow output shaft other ends stretch out induction chamber, between hollow output shaft and the induction chamber bearing are housed, and two hollow output shaft other ends all are equipped with propeller and diffuser; Two hollow output shaft are stretched out induction chamber and are partly comprised propeller and diffuser, and wherein propeller and diffuser all are enclosed within separately in the kuppe, and two kuppes are fixed on the end face of induction chamber, and with hollow output shaft coaxial line separately; Suction hose gets into and is fixed on the induction chamber from the induction chamber bottom surface, and suction hose is divided into two after getting into induction chamber, and two pipes telling put in respectively separately in the hollow output shaft.
The profile of described two diffusers is cones; The cone diameter at butt end equates with the hub diameter of two propeller; Two diffuser the insides are taper holes; The taper hole top diameter equates on the taper hole conical surface helical blade is arranged with the internal diameter of hollow output shaft separately, and the hand of spiral of this helical blade is opposite with the hand of spiral of propeller separately.
Described two kuppes have eight to delete bar near an end of induction chamber; Eight ends of deleting bar are connection base plates of two kuppes; The other end is a cylindrical drum, and a lot of apertures are arranged above the cylindrical drum, and the end face that assembles latter two kuppe grows 80 ~ 150mm than two diffuser end faces.
The beneficial effect that the present invention has is:
The present invention fully utilizes various oxygenation measures: water body is stirred in the propeller at high speed rotation, promotes convective exchange and water-aerosphere face to upgrade; The propeller at high speed rotation produces negative pressure, thereby produces air-breathing, soaking effect; The employing wheel high speed rotating of calming the anger produces and to calm the anger, and increases air inflow greatly; Setting up of suction hose produces double-deck annular gas-liquid interface, increases contact area greatly; The inside spin of diffuser is opposite with the hand of spiral of screw, increases the shear action between water-gas, and narrow meshed kuppe is separated into littler bubble to bubble, further increases the contact area of water-gas, improves oxygenation efficient.Two cover screw symmetric arrangement are arranged, and aerator with regard to balance, reduces the aerator difficulty fixing in the pond in the pond theoretically.
Description of drawings
Fig. 1 is a transmission principle sketch map of the present invention.
Fig. 2 is the cutaway view of kuppe along central axis.
Fig. 3 is the A-A cutaway view of Fig. 2.
Fig. 4 is the B-B cutaway view of Fig. 2.
Fig. 5 is the partial assembled and the relative position sketch map of kuppe, suction hose, hollow output shaft, propeller and diffuser.
Among the figure: 1, motor, 2, hollow shaft, 3, the wheel of calming the anger, 4, cannulated sleeve; 5, the arm beam of steelyard, 6, ball float, 7, rolling bearing, 8, induction chamber; 9, conical gear initiatively, 10,10 ', two driven bevel gears, 11,11 ', hollow output shaft, 12,12 ', bearing; 13,13 ', propeller, 14,14 ', diffuser, 15,15 ', kuppe, 16, suction hose.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Shown in Fig. 1 ~ 5, motor 1 of the present invention is passed to hollow shaft 2 through chain drive with power; The upper surface of hollow shaft 2 is connected with wheel 3 bottoms of calming the anger, and the wheel 3 of calming the anger is bullets that have internal helical blades, and the bottom of the wheel 3 of calming the anger has a through hole to communicate with the hole of hollow shaft 2; Hollow shaft 2 outsides are with cannulated sleeve 4, and the upper surface of cannulated sleeve 4 is connected with an end of the arm beam of steelyard 5, and the arm beam of steelyard 5 other ends are fixed with ball float 6; Motor 1 is fixed on the arm beam of steelyard 5; Between the two ends of cannulated sleeve 4 and hollow shaft 2, rolling bearing 7 is housed all; The lower surface of cannulated sleeve 4 is connected with induction chamber 8; Hollow shaft 2 ends are equipped with initiatively conical gear 9; Initiatively conical gear 9 meshes with the driven bevel gear 10,10 ' of the right and left; Two driven bevel gears 10,10 ' are contained in respectively on the hollow output shaft 11,11 ' separately, and three conical gears all are included in the induction chamber 8; Hollow output shaft 11, the 11 ' other end stretch out induction chamber 8, hollow output shaft 11,11 ' and induction chamber 8 between bearing 12,12 ' is arranged, hollow output shaft 11,11 ' end be equipped with propeller 13,13 ' with diffuser 14,14 '; Hollow output shaft 11,11 ' stretch out induction chamber 8 parts comprise propeller 13,13 ' with diffuser 14,14 '; Wherein propeller and diffuser all are enclosed within separately in the kuppe 15,15 '; Kuppe 15,15 ' is fixed on the end face of induction chamber 8, and with hollow output shaft 11,11 ' coaxial line; Suction hose 16 gets into and is fixed on the induction chamber 8 from induction chamber 8 sides, is divided into two after suction hose 16 gets into induction chambers 8, and two pipes telling put in respectively in the hollow output shaft 11,11 '.
Two diffusers 14,14 ' profile are cones; The size of cone diameter at butt end and two propeller 13,13 ' hub diameter equate; Two diffusers 14,14 ' the insides are taper holes; Taper hole top diameter and hollow two output shafts 11,11 ' internal diameter are the same, on the taper hole conical surface helical blade are arranged, and the hand of spiral of this helical blade and two propeller 13,13 ' the hand of spiral are opposite.
Two kuppes 15,15 ' the back side (near an end of induction chamber 8) part are eight and delete bar; Eight ends of deleting bar are two kuppes 15,15 ' connection base plate; The other end is a cylindrical drum; A lot of apertures are arranged above the cylindrical drum, assemble latter two kuppe 15,15 ' end face grows 80 ~ 150mm than two diffusers 14,14 ' end face.
Sealing problem during for solution work, there is the O RunddichtringO of annular the junction of the lower surface of cannulated sleeve 4 and induction chamber 8; Two hollow output shaft 11,11 ' are passed the end face of induction chamber 8, except two bearings 12,12 ', also have backbone sealing ring at the two ends of bearing here.
Operation principle of the present invention is following:
When the present invention worked, power through chain drive, was passed to hollow shaft 2 with power by motor 1 input; The upper end of hollow shaft 2 is connected with the wheel 3 of calming the anger, and wheel 3 bottoms of calming the anger have a hole to communicate with hollow shaft, and there is helical blade the wheel inside of calming the anger; High-speed rotary, helical blade is air-breathing, and gas is pressed into hollow shaft 2.Hollow shaft 2 outsides are with cannulated sleeve 4, between rolling bearing 7 is arranged, the upper end of cannulated sleeve 4 is connected with the arm beam of steelyard 5, the other end of the arm beam of steelyard 5 is connected with ball float 6, motor 1 is fixed on the arm beam of steelyard 5.The weight of a whole like this aerator is born by the buoyancy of ball float 6.
The lower surface of cannulated sleeve is connected with induction chamber 8; The lower end of hollow shaft 2 is fixed with initiatively conical gear 9; Initiatively driven bevel gear 10, the 10 ' engagement of conical gear 9 and the right and left; Be contained in respectively on two hollow output shaft 11,11 ' separately from two moving conical gears 10,10 '; Two hollow output shaft 11,11 ' stretch out 8, two hollow output shaft of induction chamber 11,11 ' the other end all be equipped with propeller 13,13 ' with diffuser 14,14 ', the power of motor 1 just passes on two propeller 13,13 ' and two diffuser 14,14 ' like this.Two diffusers 14,14 ' profile are cones; The size of cone diameter at butt end and two propeller 13,13 ' hub diameter equate; Two diffusers 14,14 ' the insides are taper holes; Taper hole top diameter and two hollow output shaft 11,11 ' internal diameter are the same, on the taper hole conical surface helical blade are arranged, and the hand of spiral of this helical blade and two propeller 13,13 ' the hand of spiral are opposite.Suction hose 16 gets into and is fixed on the induction chamber 8 from induction chamber 8 sides, is divided into two after suction hose 16 gets into induction chambers 8, and two pipes telling put in respectively in the hollow output shaft 11,11 '.Two propeller 13,13 ' high speed rotating; Produce negative pressure at the blade back; Simultaneously two screws 13,13 ' push away water and advance and produce certain current; In wake flow, also produce the pressure below atmospheric pressure district, add the effect of calming the anger of the wheel 3 of calming the anger, like this through in hollow shaft 2, induction chamber 8, hollow output shaft 11,11 ' the conductance entry.Also water is sucked in the compression ring simultaneously, produce double-deck annular gas-liquid interface, increase contact area greatly through suction hose 16.The hand of spiral of two diffusers 14,14 ' internal helical blades and two propeller 13,13 ' the hand of spiral are opposite, have increased the shear action between water-gas greatly.
Two hollow output shaft 11,11 ' are stretched out induction chamber 8 parts and are comprised that two propeller 13,13 ' and two diffuser 14,14 ' are enclosed within two kuppes 15,15 '; Two kuppes 15,15 ' are fixed on the end face of induction chamber 8, and with two hollow output shaft 11,11 ' coaxial line; Two kuppes 15,15 ' the back side (near an end of induction chamber 8) part are eight and delete bar; Eight ends of deleting bar are two kuppes 15,15 ' connection base plate; The other end is a cylindrical drum; A lot of apertures are arranged above the cylindrical drum, assemble latter two kuppe 15,15 ' end face grows 80 ~ 150mm than two diffusers 14,14 ' end face.During aerator work; There are relative high speed rotating in two kuppes 15,15 ' and two propeller 13,13 ' and two diffuser 14,14 '; Narrow meshed like this two kuppes 15,15 ' further are separated into littler bubble to bubble, further increase the contact area of water-gas.
The present invention produces the contact area that increases water-gas from pressure, air-breathing and suction, raising oxygenation efficient through 3, two propeller of wheel 13 of calming the anger, 13 ' and two diffuser 14,14 ' high speed rotating.
Above-mentioned embodiment is used for the present invention that explains, rather than limits the invention, and in the protection domain of spirit of the present invention and claim, any modification and change to the present invention makes all fall into protection scope of the present invention.
Claims (3)
- A symmetric arrangement propeller type from calm the anger, air-breathing, suction aerator, it is characterized in that: motor (1) is passed to hollow shaft (2) through chain drive with power; The upper surface of hollow shaft (2) is connected with wheel (3) bottom of calming the anger, and the wheel (3) of calming the anger is a bullet that has internal helical blades, and the bottom through-hole of the wheel (3) of calming the anger communicates with the hole of hollow shaft (2); Hollow shaft (2) outside is with cannulated sleeve (4), and the upper surface of cannulated sleeve (4) is connected with an end of the both sides arm beam of steelyard, and two arm beam of steelyard other ends are fixed with ball float (6) respectively; Motor (1) is fixed on the arm beam of steelyard; Between the two ends of cannulated sleeve (4) and hollow shaft (2), rolling bearing (7) is housed all; The lower surface of cannulated sleeve (4) is connected with induction chamber (8); Hollow shaft (2) end is equipped with initiatively conical gear (9); Initiatively conical gear (9) meshes with the driven bevel gear (10,10 ') on both sides; Two driven bevel gears (10,10 ') are contained in respectively on the end of hollow output shaft (11,11 ') separately, and described three conical gears all are included in the induction chamber (8); Two hollow output shaft (11,11 ') other end stretches out induction chamber (8); Between hollow output shaft (11,11 ') and the induction chamber (8) bearing (12,12 ') is housed, two hollow output shaft (11,11 ') other end all is equipped with propeller (13,13 ') and diffuser (14,14 '); Two hollow output shaft (11,11 ') are stretched out induction chamber (8) part and are comprised propeller and diffuser; Wherein propeller and diffuser all are enclosed within separately in the kuppe; Two kuppes (15,15 ') are fixed on the end face of induction chamber (8), and with hollow output shaft (11,11 ') coaxial line separately; Suction hose (16) gets into and is fixed on the induction chamber (8) from induction chamber (8) bottom surface, and suction hose (16) is divided into two after getting into induction chamber (8), and two pipes telling put in respectively separately in the hollow output shaft (11,11 ').
- 2. a kind of symmetric arrangement propeller type according to claim 1 is calmed the anger certainly, air-breathing, suction aerator; It is characterized in that: the profile of described two diffusers (14,14 ') is a cone; The cone diameter at butt end equates with the hub diameter of two propeller (13,13 '); Two diffusers (14,14 ') the inside is a taper hole; The taper hole top diameter equates on the taper hole conical surface helical blade is arranged with the internal diameter of hollow output shaft (11,11 ') separately, and the hand of spiral of this helical blade is opposite with the hand of spiral of propeller (13,13 ') separately.
- 3. symmetric arrangement propeller type according to claim 1 is calmed the anger certainly, air-breathing, suction aerator; It is characterized in that: described two kuppes (15,15 ') have eight to delete bar near an end of induction chamber (8); Eight ends of deleting bar are connection base plates of two kuppes (15,15 '); The other end is a cylindrical drum, and a lot of apertures are arranged above the cylindrical drum, and the end face that assembles latter two kuppe (15,15 ') grows 80 ~ 150mm than two diffusers (14,14 ') end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100925564A CN102246719B (en) | 2011-04-13 | 2011-04-13 | Symmetrically arranged propeller type self-air compression, self-air suction and self-water absorption aerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100925564A CN102246719B (en) | 2011-04-13 | 2011-04-13 | Symmetrically arranged propeller type self-air compression, self-air suction and self-water absorption aerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102246719A CN102246719A (en) | 2011-11-23 |
| CN102246719B true CN102246719B (en) | 2012-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011100925564A Expired - Fee Related CN102246719B (en) | 2011-04-13 | 2011-04-13 | Symmetrically arranged propeller type self-air compression, self-air suction and self-water absorption aerator |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103190375B (en) * | 2013-04-19 | 2015-07-01 | 中国水产科学研究院淡水渔业研究中心 | Oxygenation device for ponds |
| CN104082230B (en) * | 2014-07-31 | 2015-12-02 | 梁桥锋 | A kind of pressurization pore water spray oxygen-increasing device utilizing fish pond bottom water body |
| CN107176681A (en) * | 2017-06-30 | 2017-09-19 | 中山市程博工业产品设计有限公司 | A kind of sewage oxygen filtering device |
| CN107801677B (en) * | 2017-11-02 | 2021-01-29 | 江苏华淼电子科技有限公司 | Aquaculture oxygenation device |
| CN110024736A (en) * | 2018-01-11 | 2019-07-19 | 苏振明 | Suspended pond heats aeration oxygenator |
| CN111034670B (en) * | 2019-12-31 | 2021-10-22 | 镇江大全现代农业发展有限公司 | Rice field fish culture oxygenation device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87200812U (en) * | 1987-01-23 | 1987-12-30 | 华中农业大学 | Separated air/water flow oxygen-enriched machine |
| CN2066649U (en) * | 1990-05-29 | 1990-12-05 | 上海水产大学 | Blowing pre-mixing type oxygen increasing machine |
| CN2612232Y (en) * | 2003-03-17 | 2004-04-21 | 广州市番禺区南方永恒机械厂 | High-efficient aerator device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202019637U (en) * | 2011-04-13 | 2011-11-02 | 浙江理工大学 | Symmetrically-distributed propeller type self gas compressing, gas sucking and water sucking oxygen increasing machine |
-
2011
- 2011-04-13 CN CN2011100925564A patent/CN102246719B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87200812U (en) * | 1987-01-23 | 1987-12-30 | 华中农业大学 | Separated air/water flow oxygen-enriched machine |
| CN2066649U (en) * | 1990-05-29 | 1990-12-05 | 上海水产大学 | Blowing pre-mixing type oxygen increasing machine |
| CN2612232Y (en) * | 2003-03-17 | 2004-04-21 | 广州市番禺区南方永恒机械厂 | High-efficient aerator device |
Non-Patent Citations (3)
| Title |
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| 冯海清.螺旋桨吸气增氧机与叶轮式增氧机的生产应用试验.《河北渔业》.2001,(第3期),39-41. * |
| 周玉光等.螺旋吸气式增氧机的结构设计.《青岛海洋大学学报》.1995,第25卷(第1期),43-48. * |
| 谷坚等.几种机械增氧方式在池塘养殖中的增氧性能比较.《农业工程学报》.2011,第27卷(第1期),148-152. * |
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Granted publication date: 20121031 Termination date: 20130413 |