WO2013149557A1 - 离心自吸混合式倒伞型曝气机 - Google Patents

离心自吸混合式倒伞型曝气机 Download PDF

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Publication number
WO2013149557A1
WO2013149557A1 PCT/CN2013/073243 CN2013073243W WO2013149557A1 WO 2013149557 A1 WO2013149557 A1 WO 2013149557A1 CN 2013073243 W CN2013073243 W CN 2013073243W WO 2013149557 A1 WO2013149557 A1 WO 2013149557A1
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WIPO (PCT)
Prior art keywords
phase mixing
tube
iii
tubes
siphon
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PCT/CN2013/073243
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English (en)
French (fr)
Inventor
王月萍
张鑫珩
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中冶华天工程技术有限公司
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Application filed by 中冶华天工程技术有限公司 filed Critical 中冶华天工程技术有限公司
Priority to US14/112,359 priority Critical patent/US9382720B2/en
Publication of WO2013149557A1 publication Critical patent/WO2013149557A1/zh

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H4/00—Swimming or splash baths or pools
    • E04H4/12—Devices or arrangements for circulating water, i.e. devices for removal of polluted water, cleaning baths or for water treatment
    • E04H4/1209—Treatment of water for swimming pools
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/12—Activated sludge processes
    • C02F3/14—Activated sludge processes using surface aeration
    • C02F3/16—Activated sludge processes using surface aeration the aerator having a vertical axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/234—Surface aerating
    • B01F23/2342—Surface aerating with stirrers near to the liquid surface, e.g. partially immersed, for spraying the liquid in the gas or for sucking gas into the liquid, e.g. using stirrers rotating around a horizontal axis or using centrifugal force
    • B01F23/23421—Surface aerating with stirrers near to the liquid surface, e.g. partially immersed, for spraying the liquid in the gas or for sucking gas into the liquid, e.g. using stirrers rotating around a horizontal axis or using centrifugal force the stirrers rotating about a vertical axis
    • B01F23/234211—Stirrers thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

Definitions

  • the present invention relates to a centrifugal self-priming hybrid inverted umbrella type aerator. Background technique
  • the present invention provides a centrifugal self-priming hybrid inverted umbrella type aerator, which not only improves the sewage of each layer in the pool, but also the water state of the upper and lower circulation, so that there is no oxygenation blind zone in the pool.
  • the oxygen in the air is continuously brought into the lagoon, and the organic matter in the sewage is effectively oxidized, and at the same time provides a life source for the oxygen-consuming species.
  • a centrifugal self-priming hybrid inverted umbrella type aerator which comprises an inverted umbrella type impeller body, wherein blades are distributed on the impeller body, and the surface of the impeller body is distributed
  • each three-phase mixing tube group includes a plurality of three-phase mixing tubes, a plurality of three-phase mixing tubes are distributed in a divergent manner on the surface of the impeller body, and a plurality of layers are concentrically arranged downwardly at the bottom of the impeller body.
  • each three-phase mixing tube group corresponds to each layer of the draft tube
  • the number of siphon tubes distributed in each layer of the draft tube corresponds to The number of three-phase mixing tubes in the three-phase mixing tube group is the same.
  • One end of each three-phase mixing tube is attached to the edge of the impeller body, and the other end of each three-phase mixing tube is connected to each siphon, each siphon and each The connection of the three-phase mixing pipe is provided with a negative pressure suction pipe.
  • One end of the negative pressure suction pipe is perpendicularly directed to the outside of the impeller body and is open to the atmosphere, and the other end of the negative pressure suction pipe is inserted into the three-phase mixing pipe to be mixed with the three phases. Water spray in the tube Consistent direction.
  • the surface of the impeller body is uniformly distributed with a three-phase mixing tube group I, a three-phase mixing tube group II and a three-phase mixing tube group III, a three-phase mixing tube group I, a three-phase mixing tube group II and three phases.
  • the mixing tube group III comprises a plurality of three-phase mixing tubes I, a plurality of three-phase mixing tubes II and a plurality of three-phase mixing tubes III, three-phase mixing tubes I in the three-phase mixing tube group I, and three-phase mixing
  • Each three-phase mixing tube II in the tube group II is mixed with each three-phase in the three-phase mixing tube group III
  • the pipe joints III are spaced apart from each other on the surface of the impeller body, and the bottom of the impeller body is provided with a concentrically arranged guide tube I, a guide tube II and a guide tube III, and the diameter of the guide tube I is larger than that of the guide tube
  • the diameter of the pipe diameter of II, the diameter of the guide tube II is larger than the diameter of the guide tube III, and the guide tube I, the guide tube II and the guide tube III extend vertically downward according to the diameter of the tube.
  • the inner wall of the guide tube I, the guide tube II and the guide tube III are respectively distributed with a plurality of siphon tubes I, a plurality of siphon tubes II and a plurality of siphon tubes III, each siphon tube 1 and each three
  • the phase mixing tube I is connected to each other, and a negative pressure suction pipe I is provided at a joint of the siphon pipe I to write the three-phase mixing pipe I, and each siphon pipe II is respectively connected with each three-phase mixing pipe II, in the siphon II and the three phases
  • the junction of the mixing pipe II is provided with a negative pressure suction pipe II
  • each of the siphon pipes III is respectively connected with each three-phase mixing pipe III, and a negative pressure suction pipe is provided at a junction of the siphon pipe III and the three-phase mixing pipe III. III.
  • the guide tube I, the guide tube II and the guide tube III are arranged vertically in a stepwise manner in descending order of the diameter of the tube.
  • the three-phase mixing tube I has a rectangular, circular, triangular or polygonal cross section
  • the three-phase mixing tube II has a rectangular, circular, triangular or polygonal cross section
  • the three-phase mixing tube III has a rectangular, circular, triangular or polygonal cross section.
  • the siphon tube I, the siphon tube II and the siphon tube III have a rectangular, circular, triangular or polygonal cross section.
  • the three-phase mixing tube group I, the three-phase mixing tube group II and the three-phase mixing tube group III are distributed on the upper surface or the lower surface of the impeller body.
  • the present invention has the following beneficial effects:
  • the bottom of the impeller body of the present invention is provided with a plurality of draft tubes having different lengths and lengths, which can respectively reach different depths in the sewage pool, and a plurality of siphon tubes are arranged in the draft tube, the aerator
  • the upper surface or the lower surface of the impeller body is provided with a three-phase mixing tube, and the centrifugal force generated when the aeration impeller rotates can lift the fluid in the different siphon tubes into the gas-liquid-solid three-phase mixing tube and continuously spray to the periphery.
  • the impeller does not stop rotating the fluid in each layer of the lagoon, the upper and lower circulation and the peripheral radiation can be continuously formed by the centrifugal force, so that the fluid of each layer is thoroughly mixed with the air.
  • the back section of the siphon and the three-phase mixing tube is provided with a negative pressure suction pipe. When the fluid is sprayed by the centrifugal force, a large negative pressure is generated in the three-phase mixing pipe, and the air is continuously pressed by the negative pressure pipe.
  • the three-phase mixing pipe is mixed with the solid-liquid phase in the sewage to form a three-phase mixture of water, solid and gas, which is injected into the pool, and the oxygen contained in the air can effectively oxidize the organic matter in the sewage, and at the same time Provide a source of life for aerobic species.
  • FIG. 1 is a schematic structural view of a first embodiment of the present invention.
  • FIG. 2 is a bottom view of FIG. 1.
  • FIG 3 is a schematic view showing the connection of the siphon tube III and the three-phase mixing tube III according to an embodiment of the present invention.
  • FIG. 4 is a diagram of a siphon tube I connected to a three-phase mixing tube I and a siphon tube II and a three-phase according to an embodiment of the present invention; Schematic diagram of the mixing tube ⁇ connection. detailed description
  • Embodiment 1 In FIGS. 1 and 2, the present invention provides a centrifugal self-priming hybrid inverted umbrella type aerator comprising an inverted umbrella type impeller body 1 with blades distributed on the impeller body 1 2, the surface of the impeller body 1 is distributed with a three-phase mixing tube group I, a three-phase mixing tube group II and a three-phase mixing tube group III, a three-phase mixing tube group I, a three-phase mixing tube group II and a three-phase mixing tube Group III is distributed on the upper surface or the lower surface of the impeller body 1, and the three-phase mixing tube group I, the three-phase mixing tube group II and the three-phase mixing tube group III respectively comprise eight three-phase mixing tubes I 3 and eight three
  • the phase mixing tube II 4 and the eight three-phase mixing tubes III 5, the three-phase mixing tube I 3 , the three-phase mixing tube II 4 and the three-phase mixing tube III 5 have a rectangular, circular, triangular or polygonal cross section, three-phase mixing Each three-phase mixing
  • the diameter of the tube of III 8 , the guide tube I 6 , the guide tube II 7 and the guide tube III 8 are arranged vertically in a descending order according to the diameter of the tube, the guide tube I 6 , the diversion
  • the inner wall of the cylinder II 7 and the guide tube III 8 are respectively branched with eight vertical siphons I 14, eight vertical siphons 12 and eight vertical siphons III 10, each of the three-phase mixing tubes and each
  • the layer guide tubes correspond to each other, and the number of siphon tubes distributed in each of the draft tubes is the same as the number of three-phase mixing tubes in the corresponding three-phase mixing tube group, and each three-phase mixing tube I 3 and each three-phase mixing tube II 4 and each of the three-phase mixing tubes III 5 -
  • each siphon II 12 of the present embodiment is mixed with each three-phase separately.
  • the tube II 4 is connected to each other, and the junction of the siphon tube II 12 and the three-phase mixing tube II 4 is provided with a negative pressure suction tube II 11 , and one end of the negative pressure suction tube II 11 is vertically directed to the outside of the impeller body 1 and the impeller body 1
  • the external phase communicates, and the other end of the negative pressure suction pipe II 11 projects into the three-phase mixing pipe II 4 in the same direction as the water jet in the three-phase mixing pipe 4, and in Fig.
  • each of the siphons of the present embodiment III 10 is connected to each of the three-phase mixing tubes III 5 respectively, and a negative pressure suction pipe III is provided at the junction of the siphon III 10 and the three-phase mixing pipe III 5, and one end of the negative pressure suction pipe III 9 is vertically pointed The outside of the impeller body 1 and the outside of the impeller body 1 The other end of the negative pressure suction pipe III 9 extends into the three-phase mixing pipe III 5 and coincides with the direction of the water jet in the three-phase mixing pipe III 5 .

Abstract

一种离心自吸混合式倒伞型曝气机，叶轮体（1）的表面分布有若干三相混合管组，每个三相混合管组包括若干三相混合管，若干三相混合管呈发散状分布在叶轮体（1）的表面，在叶轮体（1）的底部向下延伸有若干层同心设置的导流筒，该导流筒的内壁上分布有若干垂直的虹吸管，每层导流筒内分布的虹吸管的数量与相对应三相混合管组内的三相混合管数量相同，每个三相混合管一端附于叶轮体（1）的边缘，每个三相混合管的另一端与每个虹吸管相连通，每个虹吸管与每个三相混合管的连接处设有负压吸气管。

Description

说明书 离心自吸混合式倒伞型曝气机 技术领域
[0001] 本发明涉及一种离心自吸混合式倒伞型曝气机。 背景技术
[0002] 世界上所有同类倒伞型表面曝气机都存在一个致命的缺陷，在 4〜6m深的水 池中进行曝气，只能对距水面 2〜3m的污水进行曝气而不可能将深层水进行曝气充氧， 并对气、 液、 固进行充分有效的混合， 故而使污水处理的能耗加大、 费用增高。 发明内容
[0003] 本发明提供了一种离心自吸混合式倒伞型曝气机，它不但使池中得各个层面 的污水都得到提升， 上下环流的水态， 使池中不再存在充氧盲区， 空气中的氧气不断 地被带进污水池， 而且对污水中的有机物进行有效的氧化， 同时为耗氧菌种提供生命 源。
[0004] 本发明采用了以下技术方案： 一种离心自吸混合式倒伞型曝气机， 它包括倒 伞型叶轮体， 在叶轮体上分布有叶片， 所述的叶轮体的表面分布有若三相混合管组， 每个三相混合管组包括若干三相混合管，若干三相混合管呈发散状分布在叶轮体的表 面， 在叶轮体的底部向下延伸有若干层同心设置的导流筒， 在每层导流筒的内壁上分 布有若干垂直的虹吸管， 每个三相混合管组与每层导流筒相对应， 每层导流筒内分布 的虹吸管的数量与相对应三相混合管组内的三相混合管数量相同.每个三相混合管一 端附于叶轮体的边缘， 每个三相混合管的另一端与每个虹吸管相连通， 每个虹吸管与 每个三相混合管的连接处设有负压吸气管，负压吸气管的一端垂直指向叶轮体的外部 与大气相通，负压吸气管的另一端伸入三相混合管内与三相混合管内水流喷射的方向 相一致。
[0005] 所述的叶轮体的表面均勾分布有三相混合管组 I、三相混合管组 II和三相混 合管组 III， 三相混合管组 I、三相混合管组 II和三相混合管组 III内分别包括有若干根 三相混合管 I、若干根三相混合管 II和若干根三相混合管 III， 三相混合管组 I内的各 三相混合管 I、三相混合管组 II内各个三相混合管 II与三相混合管组 III内的各三相混 合管 III相互间隔分布在叶轮体的表面， 所述的叶轮体的底部设有同心设置的导流筒 I、 导流筒 II和导流筒 III， 导流筒 I的管径大于导流筒 II的管径， 导流筒 II的管径大 于导流筒 III的管径， 导流筒 I、 导流筒 II和导流筒 III按照筒径由大到小的顺序竖直向 下延伸呈阶梯状排列， 导流筒 I、 导流筒 II和导流筒 III的内壁上分别均勾分布有若干 根虹吸管 I、若干根虹吸管 II和若干根虹吸管 III， 每根虹吸管 1分别与每根三相混合 管 I相连通， 在虹吸管 I写三相混合管 I的结合处设有负压吸气管 I， 每根虹吸管 II 分别与每根三相混合管 II相连通，在虹吸管 II与三相混合管 II的结合处设有负压吸气 管 II， 每根虹吸管 III分别与每根三相混合管 III相连通， 在虹吸管 III与三相混合管 III的 结合处设有负压吸气管 III。
[0006] 所述的导流筒 I、导流筒 II和导流筒 III按照筒径由大到小的顺序竖直向下延 伸呈阶梯状排列。 所述三相混合管 I截面为矩形、 圆形、 三角形或多边形， 三相混合 管 II截面为矩形、 圆形、 三角形或多边形， 三相混合管 III的截面为矩形、 圆形、 三角 形或多边形。 所述虹吸管 I、 虹吸管 II和虹吸管 III的截面为矩形、 圆形、 三角形或多 边形。所述的三相混合管组 I、三相混合管组 II和三相混合管组 III分布在叶轮体的上 表面或下表面。
[0007] 本发明具有以下有益效果： 本发明叶轮体的底部设有长短不同的， 可以分别 伸到污水池中不同深度的若干导流筒， 导流筒内设有若干根虹吸管， 曝气机叶轮体的 上表面或下表面设有三相混合管， 当曝气叶轮旋转时所产生的离心力便能将深浅不一 的虹吸管内的流体提升至气液固三相混合管内并不断地向周边喷射，只要叶轮不停止 旋转污水池中各个层面的流体便能通过离心力自然提升连续不断地形成上下环流、周 边辐射， 使各个层面的流体与空气充分混合。虹吸管与三相混合管的连接处后段设有 负压吸气管，当流体通过离心力环向喷射时，必然会使三相混合管内产生较大的负压， 空气便由负压管被不断地吸入三相混合管与污水中的固液相混合形成水、 固、气三相 混合体被喷射入水池，空气中所含有的氧气便能有效地对污水中的有机物进行有效的 氧化， 同时为耗氧菌种提供生命源。 附图说明
[0008] 图 1为本发明的实施例一的结构示意图。
[0009] 图 2为图 1的仰视图。
[0010] 图 3为本发明实施例虹吸管 III与三相混合管 III连接的示意图。
[0011] 图 4为本发明实施例虹吸管 I与 三相混合管 I连接以及虹吸管 II与三相 混合管 π连接的示意图。 具体实施方式
[0012] 实施例一， 在图 1和图 2中， 本发明提供了一种离心自吸混合式倒伞型曝气 机， 它包括倒伞型叶轮体 1， 在叶轮体 1上分布有叶片 2， 所述的叶轮体 1的表面分 布有三相混合管组 I、 三相混合管组 II和三相混合管组 III， 三相混合管组 I、 三相混 合管组 II和三相混合管组 III分布在叶轮体 1的上表面或下表面， 三相混合管组 I、三 相混合管组 II和三相混合管组 III内分别包括有八根三相混合管 I 3、八根三相混合管 II 4和八根三相混合管 III 5， 三相混合管 I 3、 三相混合管 II 4和三相混合管 III 5 的截面为矩形、 圆形、 三角形或多边形， 三相混合管组 I内的各三相混合管 I 3、 三 相混合管组 II内各个三相混合管 II 4与三相混合管组 III内的各三相混合管 III 5相互 间隔分布在叶轮体 1的表面，三相混合管组 I内的各三相混合管 I 3呈发散状分布在 叶轮体 1的表面， 三相混合管组 Π内的各三相混合管 II 4呈发散状分布在叶轮体 1 的表面，三相混合管组 III内的各三相混合管 III 5呈发散状分布在叶轮体 1的表面，在 叶轮体 1的底部设有导流筒 I 6、 导流筒 II 7和导流筒 III 8， 导流筒 I 6的管径大 于导流筒 II 7的管径， 导流筒 II 7的管径大于导流筒 III 8的管径， 导流筒 I 6、 导 流筒 II 7和导流筒 III 8按照筒径由大到小的顺序竖直向下延伸呈阶梯状排列， 导流 筒 I 6、导流筒 II 7和导流筒 III 8的内壁上分别均勾分布有八根垂直的虹吸管 I 14， 八根垂直的虹吸管 Π 12和八根垂直的虹吸管 III 10，每个三相混合管组与每层导流筒 相对应，每个导流筒内分布的虹吸管的数量与相对应三相混合管组内的三相混合管数 量相同， 每根三相混合管 I 3、 每根三相混合管 II 4和每根三相混合管 III 5—端都 附于叶轮体 1的边缘， 在图 3中， 每根虹吸管 I 14分别与每根三相混合管 I 3相连 通， 在虹吸管 I 14与三相混合管 I 3的结合处设有负压吸气管 I 13， 负压吸气管 I 13的一端垂直指向叶轮体 1的外部与大气相通， 负压吸气管 I 13的另一端伸入 三相混合管 I 3内与三相混合管 I 3内水流喷射的方向相一致， 在图 4中， 本实施 例的每根虹吸管 II 12分别与每根三相混合管 II 4相连通， 虹吸管 II 12与三相混合 管 II 4的结合处设有负压吸气管 II 11 , 负压吸气管 II 11的一端垂直指向叶轮体 1 的外部与叶轮体 1的外部相相通，负压吸气管 II 11的另一端伸入三相混合管 II 4内 与三相混合管 Π 4内水流喷射的方向相一致，在图 4中，本实施例的每根虹吸管 III 10 分别与每根三相混合管 III 5相连通，在虹吸管 III 10与三相混合管 III 5的结合处设有 负压吸气管 III 9， 负压吸气管 III 9的一端 垂直指向叶轮体 1的外部与叶轮体 1的外 部相相通， 负压吸气管 III 9的另一端伸入三相混合管 III 5内与三相混合管 III 5内水 流喷射的方向相一致。
[0013] 当倒伞曝气机旋转工作时， 在离心力的作用下， 池中各个层面的污水被虹吸 管连续地提升输送到气液固的每根三相混合管中并被环向甩出，此时气液固三相混合 管内产生较大的负压， 设在三相混合管上的吸气管便不断地吸入大量的空气， 污水与 空气中的氧气在三相混合管中不停地碰撞、 搅动， 达到充分地混合， 污水在三相混合 管的末瑞又以水片、水滴的形式环向喷射出， 在空中又与空气中的氧气充分地接触并 完成氧的转移， 最终落入水池中， 这样池中各个层面都得到提升， 上下环流的水态使 池中不再存在充氧盲区， 空气中的氧气不断地被带进污水池， 并对污水中的有机物进 行有效的氧化， 同时为耗氧菌种提供生命源。

Claims

权 利 要 求 书
1. 一种离心自吸混合式倒伞型曝气机， 它包括倒伞型叶轮体（1)， 在叶轮体 α) 上分布有叶片 （2)， 其特征是所述的叶轮体 （1) 的表面分布有若干三相混合管组， 每 个三相混合管组包括若干三相混合管， 若干三相混合管呈发散状分布在叶轮体 （1) 的 表面， 在叶轮体 （1) 的底部向下延伸有若干层同心设置的导流筒， 在每层导流筒的内 壁上分布有若干垂直的虹吸管，每个三相混合管组与每层导流筒相对应，每层导流筒内 分布的虹吸管的数量与相对应三相混合管组内的三相混合管数量相同，每个三相混合管 一端附于叶轮体 （1) 的边缘， 每个三相混合管的另一端与每个虹吸管相连通， 每个虹 吸管与每个三相混合管的连接处设有负压吸气管， 负压吸气管的一端垂直指向叶轮体
(1) 的外部与大气相通， 负压吸气管的另一端伸入三相混合管内与三相混合管内水流 喷射的方向相一致。
2.根据权利要求 1中所述的离心自吸混合式倒伞型曝气机，其特征是所述的叶轮 体 （1) 的表面均勾分布有三相混合管组 I、 三相混合管组 II和三相混合管组 III， 三相 混合管组 I、三相混合管组 II和三相混合管组 III内分别包括有若干根三相混合管 I (3)、 若干根三相混合管 Π (4) 和若干根三相混合管 III (5)， 三相混合管组 I内的各三相混 合管 I (3)、 三相混合管组 II内个各三相混合管 II (4) 与三相混合管组 III内的各三相 混合管 III (5)相互间隔分布在叶轮体（1) 的表面， 所述的叶轮体的底部设有同心设置 的导流筒 I (6)、 导流筒 II (7)和导流筒 III (8)， 导流筒 I (6) 的管径大于导流筒 II
(7) 的管径， 导流筒 II (7) 的管径大于导流筒 III (8) 的管径， 导流筒 I (6)、 导流 筒 II (7)和导流筒 III (8)按照筒径由大到小的顺序竖直向下延伸呈阶梯状排列， 导流 筒 I (6)、导流筒 II (7)和导流筒 111(8)的内壁上分别均勾分布有若干根虹吸管 I (14)、 若干根虹吸管 II (12) 和若干根虹吸管 III (10), 每根虹吸管 I (14) 分别与每根三相 混合管 I (3)相连通， 在虹吸管 I (14)与三相混合管 I (3) 的结合处设有负压吸气 管 I (13),每根虹吸管 II (12)分别与每根三相混合管 II (4)相连通，在虹吸管 II (12) 与三相混合管 Π (4) 的结合处设有负压吸气管 II (II), 每根虹吸管 III (10)
分别与每根三相混合管 III (5) 相连通， 在虹吸管 III (10) 与三相混合管 III (5) 的结合处设有负压吸气管 III (9)。
3.根据权利要求 2所述的离心自吸混合式倒伞型曝气机，其特征是所述的导流筒 I (6)、 导流筒 II (7)和导流筒 III (8)按照筒径由大到小的顺序竖直向下延伸呈阶梯 状排列。
4.根据权利要求 2所述的离心自吸混合式倒伞型曝气机，其特征是所述三相混合 管 I ( 3)截面为矩形、 圆形、三角形或多边形， 三相混合管 II (4)截面为矩形、 圆形、 三角形或多边形， 三相混合管 III ( 5) 的截面为矩形、 圆形、 三角形或多边形。
5.根据权利要求 2所述的离心自吸混合式倒伞型曝气机，其特征是所述虹吸管 I ( 14)、 虹吸管 II ( 12) 和虹吸管 III ( 10) 的截面为矩形、 圆形、 三角形或多边形。
6.根据权利要求 2所述的离心自吸混合式倒伞型曝气机，其特征是所述的三相混 合管组 I、 三相混合管组 II和三相混合管组 III分布在叶轮体 （1 ) 的上表面或下表面。
PCT/CN2013/073243 2012-04-01 2013-03-27 离心自吸混合式倒伞型曝气机 WO2013149557A1 (zh)

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