WO2018024159A1 - 微气泡发生装置 - Google Patents

微气泡发生装置 Download PDF

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Publication number
WO2018024159A1
WO2018024159A1 PCT/CN2017/094847 CN2017094847W WO2018024159A1 WO 2018024159 A1 WO2018024159 A1 WO 2018024159A1 CN 2017094847 W CN2017094847 W CN 2017094847W WO 2018024159 A1 WO2018024159 A1 WO 2018024159A1
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WIPO (PCT)
Prior art keywords
gas
liquid
microbubble generating
chamber
generating device
Prior art date
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PCT/CN2017/094847
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English (en)
French (fr)
Inventor
聂江宁
赵云清
凌斌
Original Assignee
江苏揽山环境科技股份有限公司
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Application filed by 江苏揽山环境科技股份有限公司 filed Critical 江苏揽山环境科技股份有限公司
Priority to ES17836341T priority Critical patent/ES2887038T3/es
Priority to RU2019100061A priority patent/RU2698688C1/ru
Priority to EP17836341.2A priority patent/EP3492162B1/en
Priority to US16/317,825 priority patent/US11148105B2/en
Publication of WO2018024159A1 publication Critical patent/WO2018024159A1/zh

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    • 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
    • B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
    • B01F23/23105—Arrangement or manipulation of the gas bubbling devices
    • B01F23/2312—Diffusers
    • B01F23/23126—Diffusers characterised by the shape of the diffuser element
    • B01F23/231264—Diffusers characterised by the shape of the diffuser element being in the form of plates, flat beams, flat membranes or films
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • 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
    • B01F23/21—Mixing gases with liquids by introducing liquids into gaseous media
    • B01F23/213—Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids
    • B01F23/2132—Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids using nozzles
    • B01F23/21322—Internal mixer atomization, i.e. liquid and gas are mixed and atomized in a jet nozzle before spraying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
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    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
    • B01F23/23105—Arrangement or manipulation of the gas bubbling devices
    • B01F23/2312—Diffusers
    • B01F23/23123—Diffusers consisting of rigid porous or perforated material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01F25/3124—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow
    • B01F25/31243—Eductor or eductor-type venturi, i.e. the main flow being injected through the venturi with high speed in the form of a jet
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • B01F25/3125—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characteristics of the Venturi parts
    • B01F25/31253—Discharge
    • B01F25/312532—Profiled, grooved, ribbed discharge conduit, or being provided with baffles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
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    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/314—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit
    • B01F25/3141—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit with additional mixing means other than injector mixers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/314—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit
    • B01F25/3142—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit the conduit having a plurality of openings in the axial direction or in the circumferential direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/2204—Mixing chemical components in generals in order to improve chemical treatment or reactions, independently from the specific application
    • 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
    • B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
    • B01F23/23105—Arrangement or manipulation of the gas bubbling devices
    • B01F23/2311—Mounting the bubbling devices or the diffusers
    • B01F23/23113—Mounting the bubbling devices or the diffusers characterised by the disposition of the bubbling elements in particular configurations, patterns or arrays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
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    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
    • B01F23/23105—Arrangement or manipulation of the gas bubbling devices
    • B01F23/2311—Mounting the bubbling devices or the diffusers
    • B01F23/23114—Mounting the bubbling devices or the diffusers characterised by the way in which the different elements of the bubbling installation are mounted
    • B01F23/231143—Mounting the bubbling elements or diffusors, e.g. on conduits, using connecting elements; Connections therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
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    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
    • B01F23/23105—Arrangement or manipulation of the gas bubbling devices
    • B01F23/2312—Diffusers
    • B01F23/23123—Diffusers consisting of rigid porous or perforated material
    • B01F23/231231—Diffusers consisting of rigid porous or perforated material the outlets being in the form of perforations
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
    • B01F23/23105—Arrangement or manipulation of the gas bubbling devices
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    • B01F23/237—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media
    • B01F23/2373—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media for obtaining fine bubbles, i.e. bubbles with a size below 100 µm

Definitions

  • the invention relates to the technical field of chemical industry, in particular to a microbubble generating device.
  • the size of the bubble discharged by the existing microbubble diffuser is about several millimeters to several tens of millimeters, the total contact surface of the bubble and the liquid is small, and the residence time in the water is short, resulting in low mass transfer efficiency of the gas-liquid two phases.
  • An effective way to enhance gas-liquid mass transfer is to produce finer bubbles.
  • existing devices that generate micron-sized bubbles often face problems such as high energy consumption and small gas volume.
  • the technical object of the present invention is to provide a microbubble generating device with low energy consumption, large air volume, and good gas-liquid mixing effect.
  • the technical solution disclosed by the present invention is:
  • a microbubble generating device is provided with a liquid inlet, a gas inlet, a bubble outlet, and a gas-liquid mixing chamber, wherein a gas permeable interface of the gas-liquid mixing chamber is provided with a venting hole having an angular structure, The tip of the venting corner structure is directed toward the direction of liquid flow.
  • Solution 1 The venting hole is disposed on the microbubble generating plate, and the microbubble generating device is provided with a microbubble generating plate mounting structure, and the mounting structure comprises a plenum disposed in the gas-liquid mixing chamber, the plenum The inner cavity is in communication with the gas inlet, and at least one venting window is formed on the wall of the plenum that is in contact with the liquid and parallel to the flow of the liquid, and the microbubble generating plate is encapsulated at the venting window.
  • the cross section of the gas chamber is U-shaped, and the two side walls of the gas chamber and the chamber walls on both sides of the gas-liquid mixing chamber are symmetrically provided with a passage through which the liquid passes, and the passage is the same as the liquid flow.
  • the ventilation windows are mounted on the wall surfaces on both sides of the air chamber.
  • the gas-liquid mixing chamber is provided with a gas chamber, and the gas chamber forms an annular inner cavity through the inner and outer double-layer sleeve structure, the annular inner chamber is in communication with the gas inlet, and the liquid is from the sleeve structure
  • the lumen of the inner tube passes through the venting opening on the wall of the inner tube.
  • the inner tube of the inner and outer double-layer sleeve structure is coaxially or partially adhered to the outer layer tube.
  • the gas-liquid mixing chamber is composed of a liquid pipeline and an air inlet lumen attached to the outside of the liquid pipeline, and the air inlet lumen is connected to the gas inlet, and the gas-liquid interface is
  • the intake duct is connected to the attachment surface of the liquid line, A vent hole is provided on the attachment surface.
  • the gas flow direction is perpendicular to the liquid flow direction.
  • the nozzle edge of the bubble outlet is provided with a serrated slit, and a tip structure is arranged at the bubble outlet, so that the microbubbles aggregated into large bubbles in the flow can be dispersed again to ensure the gas-liquid mixing effect.
  • a flat nozzle which is gradually enlarged in the width direction and tapered in the height direction is used, and the serrated slit is preferably provided at the upper edge of the flat nozzle.
  • a plurality of concentric coaxial conical retaining rings are arranged in the nozzle, and the tapered retaining ring outlet is also provided with a serrated slit, and the inner and outer adjacent retaining rings are left between In the overcurrent gap, the projection of the outer ring in the axial direction blocks the overcurrent gap.
  • the bubble outlet When the nozzle of the bubble outlet is downward, the bubble outlet adopts a tapered nozzle which is tapered in diameter along the flow of the liquid.
  • the microbubble generating device of the present invention blows a gas into a liquid, at the gas-liquid interface, since the liquid on one side flows rapidly, the gas passing through the vent hole is sheared into fine bubbles at the tip end of the vent hole angle structure. Since the equivalent diameter of the gas passage at the tip end of the angular structure tends to be infinitely small along the liquid flow direction, the generated bubble has a very small diameter, the stagnation time in the liquid phase is greatly prolonged, and the mass transfer efficiency of the gas and liquid is remarkably improved.
  • a tooth tip structure is further disposed at the bubble outlet, and the microbubbles aggregated into large bubbles in the flow can be dispersed again to ensure the gas-liquid mixing effect, and the microbubble generating device of the invention has low energy consumption, large gas volume, gas and liquid. The advantage of good mixing effect.
  • FIG. 1 is a schematic perspective view of a first embodiment
  • Embodiment 2 is a schematic top plan view of Embodiment 1;
  • Embodiment 3 is a schematic front view showing the structure of Embodiment 1;
  • Figure 5 is a schematic view showing a microbubble generating plate mounting structure
  • FIG. 6 is a schematic diagram of a front view through structure of Embodiment 2;
  • Figure 7 is a side view showing the structure of the second embodiment
  • Embodiment 8 is a schematic top plan view of Embodiment 2.
  • FIG. 9 is a schematic perspective view of a third embodiment
  • Figure 10 is a front view showing the structure of the third embodiment
  • Embodiment 11 is a schematic front view showing the structure of Embodiment 4.
  • Embodiment 12 is a schematic front view showing the structure of Embodiment 5;
  • Figure 13 is a side view showing the structure of the embodiment 5;
  • Figure 14 is a front view showing the structure of the sixth embodiment
  • Figure 15 is a side elevational view showing the structure of Embodiment 6.
  • a microbubble generating device is provided with a liquid inlet 101, a gas inlet 104, a bubble outlet 103, a gas-liquid mixing chamber 102, a microbubble generating plate 108, and a microbubble generating plate mounting structure 106.
  • the microbubble generating plate 108 is provided with an array of a plurality of regularly arranged venting holes, and the venting holes are in the shape of an angular structure, such as a rectangle, a triangle, a diamond, a teardrop, etc., and the angular structure
  • the tip is directed toward the direction of liquid flow, and the direction of intake of the gas inlet 104 is perpendicular to the direction of liquid flow.
  • the microbubble generating plate mounting structure 106 includes a plenum 109 disposed in the gas-liquid mixing chamber 102.
  • the inner cavity of the plenum 109 is U-shaped in cross section, and the upper end opening is in communication with the gas inlet 104.
  • the front and rear ends of the chamber 106 are provided with baffles, and the two side walls are symmetrically arranged with the passage walls of the gas-liquid mixing chambers to pass through the liquid, and the passages are in the same direction as the liquid flows.
  • Two gas permeable windows 107 are respectively disposed on the two side walls of the gas chamber 109, and the microbubble generating plate 108 is encapsulated in the gas permeable window 107.
  • the upper portion of the gas-liquid mixing chamber 102 is open, and a rectangular plate mounting seat is disposed above the opening, and the micro-bubble generating plate mounting structure 106 includes a rectangular cover plate 105 covering the opening of the gas chamber and the opening of the gas-liquid mixing chamber.
  • the rectangular plate mount is fixed by screws, and an intake pipe provided with a gas inlet 104 is connected to the cover plate 105.
  • the bubble outflow port 103 is horizontally disposed, and adopts a flat nozzle which is gradually expanded in the width direction and tapered in the height direction, and the upper edge of the flat nozzle is provided with a serrated slit.
  • the microbubble generating plate may also be replaced by a suitable boring material.
  • a microbubble generating device is provided with a liquid inlet 201, a gas inlet 204, a bubble outlet 203 and a gas-liquid mixing chamber 202.
  • the inlet direction of the gas inlet 204 is perpendicular to the liquid flow direction. .
  • the gas-liquid mixing chamber is provided with a gas chamber 205, which forms an annular inner cavity through a coaxial inner and outer double-layer sleeve structure, the annular inner chamber is in communication with the gas inlet 204, and the liquid is from the chamber
  • the casing structure inner tube 206 is passed through the lumen of the inner tube 206, and the inner wall tube 206 is provided with an array of vent holes composed of regularly arranged vent holes.
  • the venting hole is also in the shape of an angular structure, such as a triangle, a diamond, a teardrop, etc., and the tip of the angular structure The end points to the direction of liquid flow.
  • the bubble outflow port 203 and the bubble outflow port 103 of the first embodiment adopt the same design.
  • a microbubble generating device has the main structure and the first embodiment, and is provided with a liquid inlet 301, a gas inlet 304, a bubble outlet 303, a gas-liquid mixing chamber 302, a microbubble generating plate and a micro.
  • the difference from Embodiment 1 is that the nozzle of the liquid inlet 301 faces downward, and the orifice of the bubble outlet 303 faces upward.
  • the bubble outlet 303 is a conical nozzle having a decreasing diameter.
  • the nozzle of the bubble outlet 303 is provided with a serrated slit.
  • the nozzle of the bubble outlet 303 is further provided with a plurality of concentric coaxial with the bubble outlet 303.
  • the tapered retaining ring has a serrated slit along the exit edge of the retaining ring, and an overcurrent gap is left between the inner and outer adjacent retaining rings, and the diameter of the tapered retaining ring decreases along the liquid flow direction in the axial direction. A projection of the outer retaining ring blocks the overcurrent gap.
  • the design is basically the same as that of Embodiment 3, except that the nozzle of the liquid inlet is upward, and the nozzle of the bubble outlet is facing downward, but no tapered retaining ring is provided.
  • the inner and outer double-layered sleeve structures are changed to the bottom-fitting form.
  • the inner layer tube 502 and the outer layer tube 501 are attached to the bottom.
  • the inner tube 502 has a venting hole uniformly distributed on the entire or top tube wall.
  • a microbubble generating device is provided with a liquid inlet 604, a gas inlet 603, a bubble outlet, and a gas-liquid mixing chamber.
  • the gas-liquid mixing chamber is composed of a liquid pipeline 602 and an intake duct 601 attached to the outside of the liquid pipeline 602.
  • the intake duct 601 is connected to the gas inlet 603, and the gas-liquid interface is
  • the intake duct 601 is connected to an attachment surface of the liquid line 602, and the attachment surface is provided with a venting hole having an angular structure, and the tip end of the angular structure is directed to the liquid flow direction.
  • the pipe body involved in the above embodiments such as the inner and outer double-layer casing structure, the liquid pipe, the intake pipe cavity, etc., generally adopts a round pipe, and other pipe types, such as a square pipe, may also be used.
  • the microbubble generated by the microbubble generating device of the invention has a diameter of several micrometers to several tens of micrometers and can be widely used in the fields of industry, environmental protection and the like.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
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Abstract

一种微气泡发生装置，设有液体入口（101）、气体入口（104）、气泡流出口（103）和气液混合腔（102），该气液混合腔（102）的气液交界面处设有具有角结构的透气孔，透气孔的角结构的尖端指向液体流向。该装置产生的气泡具有极小直径，在液相中的停滞时间延长，使得气液传质效率得到提高。

Description

微气泡发生装置 技术领域
本发明涉及化工技术领域，具体为一种微气泡发生装置。
背景技术
已有的微气泡扩散器排出的气泡大小约为数毫米至数十毫米，气泡与液体的总接触面小，在水中的滞留时间短，导致气液两相的传质效率不高。增强气液传质的有效方法是产生更为细小的气泡，然而，现有的装置要产生微米级的气泡通常面临着能耗大、鼓气量小等问题。
发明内容
针对现有技术存在的问题，本发明的技术目的是提供一种能耗较低、鼓气量大、气液混合效果好的微气泡发生装置。
为实现上述技术目的，本发明公开的技术方案为：
一种微气泡发生装置，设有液体入口、气体入口、气泡流出口和气液混合腔，其特征在于，所述气液混合腔的气液交界面处设有具有角结构的透气孔，所述透气孔角结构的尖端指向液体流向。
在上述方案的基础上，进一步改进或优选的方案还包括：
方案一：所述透气孔设置在微气泡发生板上，微气泡发生装置设有微气泡发生板安装结构，所述安装结构包括设置在气液混合腔内的汇气室，所述汇气室的内腔与所述气体入口连通，汇气室上与液体接触且与液体流向平行的壁面上开有一个以上的透气窗口，所述微气泡发生板封装在所述透气窗口处。
进一步的，所述汇气室的横截面呈U型，汇气室两侧壁与气液混合腔两侧腔壁之间对称地设有容液体穿过的通道，所述通道与液体流向同向，所述透气窗安装在汇气室两侧的壁面上。
方案二：所述气液混合腔中设有汇气室，所述汇气室通过内外双层套管结构形成环形内腔，所述环形内腔与气体入口连通，液体从所述套管结构内层管的管腔中穿过，所述透气孔开在所述内层管的管壁上。
所述内外双层套管结构的内层管与外层管同轴或局部贴合。
方案三：所述气液混合腔由一段液体管路和附着在该液体管路外侧的进气管腔构成，进气管腔与所述气体入口连接，所述气液交界面即为所述进气管腔连接液体管路的附着面， 透气孔设置在所述附着面上。
在上述方案中：
在气液交界面的两侧，气体流向与液体流向相垂直。
所述气泡流出口的管口边沿设有锯齿状切口，在气泡流出口设置齿尖结构，可将在流动中聚集成大气泡的微气泡再次分散，保证气液混合效果。
所述气泡流出口水平设置时，采用宽度方向渐扩、高度方向渐缩的扁平管口，所述锯齿状切口优选设置在所述扁平管口的上沿。
所述气泡流出口的管口朝上时，管口内设有多层同心同轴的锥形挡圈，锥形挡圈出口沿亦设有锯齿状切口，内外相邻挡圈之间留有过流间隙，在轴向方向上外层挡圈的投影挡住所述过流间隙。
所述气泡流出口的管口向下时，所述气泡流出口采用沿液体流向直径渐缩的锥形管口。
有益效果：
本发明微气泡发生装置向液体中鼓入气体时，在气液交界面上，由于一侧的液体快速流动，从透气孔中穿过的气体在透气孔角结构的尖端被剪切成微小气泡，由于角结构的尖端处气体通道的等效直径沿液体流向趋向于无穷小，因此产生的气泡具有极小直径，在液相中的停滞时间大幅度延长，气液的传质效率得到明显提高。在气泡流出口进一步设置齿尖结构，可将在流动中聚集成大气泡的微气泡再次分散，保证气液混合效果，且本发明微气泡发生装置具有能耗较低、鼓气量大、气液混合效果好的优点。
附图说明
图1为实施例1的立体结构示意图；
图2为实施例1的俯视结构示意图；
图3为实施例1的主视结构示意图；
图4为实施例1的侧视结构示意图；
图5为微气泡发生板安装结构的示意图；
图6为实施例2的主视透结构示意图；
图7为实施例2的侧视结构示意图；
图8为实施例2的俯视结构示意图；
图9为实施例3的立体结构示意图；
图10为实施例3的主视结构示意图；
图11为实施例4的主视结构示意图；
图12为实施例5的主视结构示意图；
图13为实施例5的侧视结构示意图；
图14为实施例6的主视结构示意图；
图15为实施例6的侧视结构示意图。
具体实施方式
为了进一步阐明本发明的技术方案和技术目的，下面结合附图与具体实施例对本发明做进一步的介绍。
实施例1：
如图1至图5所示，一种微气泡发生装置，设有液体入口101、气体入口104、气泡流出口103、气液混合腔102、微气泡发生板108和微气泡发生板安装结构106，所述微气泡发生板108上设有多个规则排列的透气孔组成的阵列，所述透气孔为具有角结构的形状，如矩形、三角形、菱形、水滴形等，且所述角结构的尖端指向液体流向，所述气体入口104的进气方向与液体流向垂直。
所述微气泡发生板安装结构106包括设置在气液混合腔102内的汇气室109，汇气室109内腔的横截面呈U型，其上端开口与所述气体入口104连通，汇气室106前后两端设有挡板，两侧壁与气液混合腔两侧腔壁之间对称地设有容液体穿过的通道，所述通道与液体流向同向。汇气室109两侧壁上各自设有两片透气窗107，所述微气泡发生板108封装在所述透气窗107中。所述气液混合腔102的上部开口，并在开口的上方设有矩形板安装座，微气泡发生板安装结构106包括一封盖汇气室开口与气液混合腔开口的矩形盖板105，通过螺钉固定在所述矩形板安装座上，设有气体入口104的进气管连接在所述盖板105上。
所述气泡流出口103水平设置，采用宽度方向渐扩、高度方向渐缩的扁平管口，所述扁平管口的上沿设有锯齿状切口。
本实施例中，所述微气泡发生板也可采用合适的具有透气孔的编制材料代替。
实施例2：
如图6至图8所示，一种微气泡发生装置，设有液体入口201、气体入口204、气泡流出口203与气液混合腔202，所述气体入口204的进气方向与液体流向垂直。
所述气液混合腔中设有汇气室205，所述汇气室205通过同轴的内外双层套管结构形成环形的内腔，所述环形内腔与气体入口204连通，液体从所述套管结构内层管206的管腔中穿过，所述内层管206的管壁上设有由规则排列的透气孔组成的透气孔阵列。
所述透气孔亦为具有角结构的形状，如三角形、菱形、水滴形等，且所述角结构的尖 端指向液体流向。
所述气泡流出口203与实施例1气泡流出口103采用相同的设计方案。
实施例3：
如图9、图10所示，一种微气泡发生装置，主体结构同实施例1，设有液体入口301、气体入口304、气泡流出口303、气液混合腔302、微气泡发生板和微气泡发生板安装结构等组成部分。
与实施例1的区别之处在于，所述液体入口301的管口朝下，气泡流出口303的管口朝上设置。气泡流出口303为直径递减的锥形管口，所述气泡流出口303的管口沿设有一圈锯齿状切口，气泡流出口303的管口内还设有多层与气泡流出口303同心同轴的锥形挡圈，所述挡圈的出口沿亦设有锯齿状切口，内外相邻挡圈之间留有过流间隙，所述锥形挡圈直径沿液体流向递减，在轴向方向上外层挡圈的投影挡住所述过流间隙。
实施例4：
如图11所示，其设计方案与实施例3基本相同，其区别之处在于，其液体入口的管口朝上，气泡流出口的管口朝下，但不设置锥形挡圈。
实施例5:
在实施例2的基础上，将所述内外双层套管结构改为底部贴合的形式，如图12、图13所示，内层管502与外层管501在底部贴合，所述内层管502整体或顶部的管壁上均布透气孔。
实施例6：
如图13、14所示，一种微气泡发生装置，设有液体入口604、气体入口603、气泡流出口和气液混合腔。
所述气液混合腔由一段液体管路602和附着在该液体管路602外侧的进气管腔601构成，进气管腔601与所述气体入口603连接，所述气液交界面即为所述进气管腔601连接液体管路602的附着面，所述附着面上设有具有角结构的透气孔，所述角结构的尖端指向液体流向。
上述的各实施例中涉及到的管体，如内外双层套管结构、液体管路、进气管腔等一般采用圆管，也可以采用其它管型，如方管等。本发明微气泡发生装置产生的微气泡直径为几微米至几十微米，可广泛用于工业、环保等领域。以上显示和描述了本发明的基本原理、主要特征和本发明的优点。本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是说明本发明的原理，在不脱离本发明精神和范围的前提下，本发明还会有各种变化和改进，本发明要求保护范围由所附的权利要求书、说明书及其等效物 界定。

Claims (11)

  1. 一种微气泡发生装置，设有液体入口、气体入口、气泡流出口和气液混合腔，其特征在于，所述气液混合腔的气液交界面处设有具有角结构的透气孔，所述角结构的尖端指向液体流向。
  2. 根据权利要求1所述的一种微气泡发生装置，其特征在于，所述透气孔设置在微气泡发生板上，所述微气泡发生装置设有微气泡发生板安装结构，所述安装结构包括设置在气液混合腔内的一个或多个汇气室，所述汇气室的内腔与所述气体入口连通，汇气室与液体接触且与液体流向平行的壁面上开有一个以上的透气窗口，所述微气泡发生板封装在所述透气窗口处。
  3. 根据权利要求2所述的一种微气泡发生装置，其特征在于，所述汇气室的横截面呈U型，汇气室两侧壁与气液混合腔两侧腔壁之间设有容液体穿过的通道，所述通道与液体流向同向，所述透气窗安装在汇气室两侧的壁面上。
  4. 根据权利要求1所述的一种微气泡发生装置，其特征在于，所述气液混合腔中设有汇气室，所述汇气室通过内外双层套管结构形成环形内腔，所述环形内腔与气体入口连通，液体从所述套管结构内层管的管腔中穿过，所述透气孔开在所述内层管的管壁上。
  5. 根据权利要求4所述的一种微气泡发生装置，其特征在于，所述内外双层套管结构的内层管与外层管同轴或局部贴合。
  6. 根据权利要求1所述的一种微气泡发生装置，其特征在于，所述气液混合腔由一段液体管路和附着在该液体管路外侧的进气管腔构成，进气管腔与所述气体入口连接，所述气液交界面即为所述进气管腔连接液体管路的附着面，透气孔设置在所述附着面上。
  7. 根据权利要求1-6中任一项所述的一种微气泡发生装置，其特征在于，在气液交界面的两侧，气体流向与液体流向相垂直。
  8. 根据权利要求1-6中任一项所述的一种微气泡发生装置，其特征在于，所述气泡流出口的管口边沿设有锯齿状切口。
  9. 根据权利要求8所述的一种微气泡发生装置，其特征在于，所述气泡流出口水平设置时，采用宽度方向渐扩、高度方向渐缩的扁平管口。
  10. 根据权利要求8所述的一种微气泡发生装置，其特征在于，所述气泡流出口的管口朝上时，管口内设有多层同心同轴的锥形挡圈，锥形挡圈出口沿亦设有锯齿状切口，内外相邻挡圈之间留有过流间隙，在轴向方向上外层挡圈的投影挡住所述过流间隙。
  11. 根据权利要求8所述的一种微气泡发生装置，其特征在于，所述气泡流出口的管口向下时，所述气泡流出口采用沿液体流向直径渐缩的锥形管口。
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EP3492162A4 (en) 2020-03-18
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