WO2021256833A1 - Tornado type aeration device having improved oxygen dissolution performance and generating air storm - Google Patents

Tornado type aeration device having improved oxygen dissolution performance and generating air storm Download PDF

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Publication number
WO2021256833A1
WO2021256833A1 PCT/KR2021/007486 KR2021007486W WO2021256833A1 WO 2021256833 A1 WO2021256833 A1 WO 2021256833A1 KR 2021007486 W KR2021007486 W KR 2021007486W WO 2021256833 A1 WO2021256833 A1 WO 2021256833A1
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tornado
chamber
diffuser
type
type diffuser
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PCT/KR2021/007486
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French (fr)
Korean (ko)
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임경택
송범석
고우성
정규영
방기훈
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주식회사 지온
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Publication of WO2021256833A1 publication Critical patent/WO2021256833A1/en

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    • 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
    • C02F3/20—Activated sludge processes using diffusers
    • C02F3/205—Moving, e.g. rotary, diffusers; Stationary diffusers with moving, e.g. rotary, distributors
    • 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
    • B01F25/10—Mixing by creating a vortex flow, e.g. by tangential introduction of flow components
    • 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 tornado type diffuser, and more particularly, to a tornado type diffuser with improved oxygen dissolution performance.
  • various types of diffuser such as a disk type (a), a membrane type (b), a rod type (c), and a ball type (d) are disclosed. .
  • the tornado type diffuser is in the spotlight in terms of oxygen dissolution performance, which is the most important performance of the diffuser.
  • Korean Patent Registration No. 0206746 uses energy generated by the rotational vortex of air and acoustic resonance to split gas droplets into small pieces, and increases the solubility of gas, particularly oxygen, to increase oxygen transfer efficiency.
  • the air diffuser using acoustic resonance has been disclosed, and
  • Korean Patent Registration No. 0289230 forms a spiral guide groove on the inner wall of the chamber, and high-pressure oxygen gas into the chamber so that it can spiral upward along the spiral guide groove.
  • the device has been disclosed.
  • an object of the present invention is to provide a tornado-type air diffuser with maximized oxygen dissolution performance.
  • a connection member having an injection hole formed therein so that air is injected;
  • a tornado containing; an outlet is formed so that air flowing into the lower part through the inlet and forming a rotational vortex is supplied into the water while generating acoustic energy, the chamber is tapered so that the inner upper part is narrowed upward
  • the chamber provides a tornado type diffuser, characterized in that along the periphery of the outlet a plurality of extension projections inclined with respect to the vertical direction are formed.
  • a tornado type diffuser characterized in that the inlet is inclined upward in the direction of the chamber.
  • the inclination angle of the injection hole provides a tornado type diffuser, characterized in that 1 to 15 °.
  • a tornado-type diffuser characterized in that the inclination angle of the extension protrusion is 5 to 45 °.
  • a tornado-type diffuser characterized in that one end of the extension protrusion and the other end of the adjacent extension protrusion are formed on the same line with respect to a vertical section.
  • extension protrusion provides a tornado-type diffuser, characterized in that the downwardly chamfered shape.
  • a tornado-type diffuser characterized in that the corner of the lower chamber has a rounded shape.
  • the lower part of the chamber provides a tornado-type diffuser, characterized in that the bottom center portion is opened.
  • a plurality of extension projections inclined in a vertical direction are formed along the circumference of the open portion, the open portion has a tapered shape to narrow upward, and the extension projection is formed on the tapered surface, characterized in that It provides a tornado type air diffuser.
  • connection member is a dual type formed in the opposite direction.
  • a tornado-type diffuser comprising a connection member and a chamber in which an outlet is formed
  • a plurality of extension protrusions are formed in which the chamber is inclined in a vertical direction along the periphery of the outlet, so that oxygen compared to a conventional tornado-type diffuser It is possible to provide a tornado-type diffuser with dramatically improved dissolution performance.
  • FIG. 1 is a view exemplarily showing an air diffuser for supplying oxygen during wastewater treatment in the related art
  • FIGS. 2 and 3 are an external perspective view and a cross-sectional perspective view, respectively, showing a tornado-type diffuser device according to the first embodiment of the present invention
  • Figure 4 is a view schematically showing the state in which gas bubbles are emitted from the tornado-type air diffuser
  • FIG. 5 is a longitudinal cross-sectional view of a tornado-type diffuser according to a first embodiment of the present invention
  • FIG. 6 is a view schematically showing the shape of the extension protrusion of the tornado-type diffuser according to the first embodiment of the present invention
  • FIG. 7 is a view schematically showing the shape of the chamber of the tornado type air diffuser according to the first embodiment of the present invention.
  • FIG. 8 is an external perspective view showing a tornado-type diffuser device according to a second embodiment of the present invention.
  • FIG. 9 is an external perspective view showing a tornado-type diffuser according to a third embodiment of the present invention.
  • FIGS. 2 and 3 are an external perspective view and a cross-sectional perspective view, respectively, showing a tornado-type diffuser according to the first embodiment of the present invention.
  • the tornado type air diffuser 100 basically includes a connection member 110 having an injection hole 111 formed therein so that air (or oxygen, hereinafter the same) is injected, and the The outlet 121 is formed so that the air flowing into the lower part through the inlet 111 and forming a rotational vortex is supplied into the water while generating acoustic energy, and the inner upper part 122 is tapered to narrow upward. It includes a shaped chamber 120 .
  • the resonance frequency is as shown in Equation 1 below.
  • the size and frequency of the acoustic resonance are a coefficient (K) associated with a decrease in the rotational speed of air due to friction in the chamber 120, the diameter (d1) of the chamber lower part 123, and the diameter of the chamber lower part 123. It is influenced by the stretched height h1, the pressure of the inlet air (P air ), and the pressure of water at the outlet 121 of the aerator (P water ) (see FIG. 7 ).
  • C is the speed of sound.
  • the speed of sound in a medium in which gas and water are mixed but in the actual operating conditions of the air diffuser, since gas occupies most of the medium, close.
  • the coefficient K is measured by experiment according to the diffuser.
  • the inner upper portion 122 of the chamber 120 is tapered to narrow upward, that is, the upper portion 122 of the chamber 120 has a diameter d2.
  • the oxygen dissolution performance of the air diffuser 100 is better than that of the other case.
  • the chamber 120 is provided with a plurality of extension protrusions 124 inclined in the vertical direction along the circumference of the outlet 121, thereby maximizing the oxygen dissolution performance compared to the conventional tornado type diffuser.
  • FIG. 4 is a diagram schematically illustrating a state in which gas bubbles are emitted from a tornado-type air diffuser.
  • the protrusion 124 is extended at the end of the tapered upper part 122 where the gas bubbles are most accelerated inside the chamber 120, so that the gas bubbles are discharged from the outlet 121 into the water immediately before, By first colliding with the projection 124, the splitting of the gas bubble is maximized.
  • the effect of scattering gas bubbles are all covered by a rotating vortex of one stem is difficult to increase any more (see Fig.
  • the extension protrusion 124 is the outlet ( 121) It is divided by the number of extension protrusions 124 arranged at regular intervals in an inclined direction along the circumference to form a rotational vortex, and the scattering effect of the emitted gas bubbles is explosively increased, and in the present invention, it is storm) effect' (see FIG. 4(b)).
  • FIG. 5 is a longitudinal cross-sectional view of a tornado-type diffuser according to the first embodiment of the present invention.
  • the inlet 111 is formed to be inclined upward in the direction of the chamber 120, so that the air flowing into the inlet 111 can smoothly form a rotational vortex upward.
  • the inclination angle ⁇ 1 of the injection hole 111 may be 1 to 15°, preferably 2 to 10°, more preferably 3 to 5°.
  • the inclination angle ⁇ 2 of the extension protrusion 124 is 10 considering that the rising angle of the rotational vortex formed in the chamber lower portion 123 is greater than in the tapered upper portion 122 . to 80°, preferably 20 to 70°, and more preferably 30 to 60°.
  • extension protrusion 124 and the other end of the extension protrusion 124 adjacent to each other are formed on the same line based on a vertical cross-section, that is, the upper end of the extension protrusion 124 is vertical.
  • the pressure of the emitted air bubbles becomes stronger compared to the case where it is not, so that the oxygen dissolution performance can be further improved.
  • FIG. 6 is a view schematically showing the shape of the extension protrusion of the tornado-type diffuser according to the first embodiment of the present invention.
  • the extension protrusion 124 may have the same height h2 as the shape (a), but in the case of a chamfer shape (b) cut downwards, the extension protrusion 124 has a tapered shape to narrow upward.
  • the upper chamber 122 By making the upper chamber 122 to obtain the effect of a tapered shape in two stages, it is possible to realize more maximized oxygen dissolution performance.
  • FIG. 7 is a view schematically showing the shape of the chamber of the tornado-type air diffuser according to the first embodiment of the present invention.
  • the corner 125 of the lower chamber 123 may have a right-angled shape (a), but is preferably formed in a rounded shape (b) and introduced into the inlet 111 by air. of the rotational vortex to be formed more smoothly.
  • FIG. 8 is an external perspective view showing a tornado-type diffuser according to a second embodiment of the present invention.
  • the tornado-type diffuser 100 may have an open bottom center portion of the chamber lower portion 123 .
  • the solid matter suspended or deposited under the diffuser 100 is also introduced by the rotating vortex formed in the lower part 123 to be treated. Therefore, according to the present invention, there is provided a tornado-type air diffuser that generates an air storm having a function of removing sediment as a new concept air diffuser that also serves to remove sediment while generating an air storm.
  • a plurality of extension protrusions 127 inclined in a vertical direction are formed along the circumference of the open portion 126 , and the open portion 126 has a tapered shape to be narrowed upward, and the extension protrusions are formed.
  • 127 may be formed on the tapered surface, and accordingly, the solid material flowing in from below the opening 126 is evenly incorporated into the rotating vortex, so that water treatment proceeds more efficiently, as well as the lower chamber 123 It is possible to further maximize the intensity of the rotational vortex in the upper chamber 122 and the splitting of air bubbles resulting therefrom by inducing the generation of a rotational vortex from.
  • FIG. 9 is an external perspective view showing a tornado-type diffuser according to a third embodiment of the present invention.
  • the tornado-type diffuser 100 may be of a dual type in which the connection member 110 is also formed in the opposite direction, and thus the pressure of the air injected into the chamber 120 at high pressure is reduced. By doubling it to induce a more powerful rotating vortex, it is possible to further improve the oxygen dissolution performance as a result.

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)

Abstract

Disclosed is a tornado type aeration device having a maximized oxygen dissolution performance. The present invention provides a tornado type aeration device comprising: a connecting member having an inlet formed therein to allow air to be injected thereinto; and a chamber which includes an outlet formed therethrough and has a tapered shape such that an internal upper part of the chamber narrows upward, wherein air introduced through the inlet into a lower part of the chamber to form a vortex is supplied through the outlet into water while generating acoustic energy, and the chamber includes a plurality of extension protrusions formed along the circumference of the outlet and inclined with respect to the vertical direction.

Description

산소 용해 성능이 향상된 에어스톰을 발생시키는 토네이도형 산기장치Tornado-type diffuser that generates an air storm with improved oxygen dissolution performance
본 발명은 토네이도형 산기장치에 관한 것으로, 보다 상세하게는 산소 용해 성능이 향상된 토네이도형 산기장치에 관한 것이다.The present invention relates to a tornado type diffuser, and more particularly, to a tornado type diffuser with improved oxygen dissolution performance.
종래 폐수 처리 시 산소 공급을 위한 산기장치로서, 예컨대, 도 1을 참조하면 디스크형(a), 멤브레인형(b), 봉형(c), 볼형(d) 등 다양한 형태의 산기장치가 개시되고 있다.As a conventional diffuser for supplying oxygen during wastewater treatment, for example, referring to FIG. 1 , various types of diffuser such as a disk type (a), a membrane type (b), a rod type (c), and a ball type (d) are disclosed. .
이들 산기장치는 각 형태에 따라 특화된 면이 있으나, 산기장치에서 가장 중요한 성능인 산소 용해 성능 측면에서는 토네이도형 산기장치가 각광받고 있다.Although these diffusers have specialized aspects according to each type, the tornado type diffuser is in the spotlight in terms of oxygen dissolution performance, which is the most important performance of the diffuser.
이러한 토네이도형 산기장치로서, 한국 등록특허 제0206746호는 공기의 회전 소용돌이와　음향공진에 의해 발생된 에너지를 이용하여 기체방울을 작게 쪼개주고, 기체, 특히 산소의 용해도를 증가시켜 산소전달 효율을 증가시키는 음향공진을 이용한 산기장치를 개시한 바 있고, 한국 등록특허 제0289230호는 챔버 내벽면에 나선형 가이드홈을 형성하고, 나선형 가이드홈을 따라 상방으로 나선운동할 수 있도록 챔버 내부로 산소기체를 고압 주입하여 소용돌이를 발생시키고, 챔버내부로 유입되는 폐수와 챔버외부로 방출되는 폐수의 압력차로 공진을 발생시켜 폐수내에 산소기체의 용해도를 높일 수 있는 챔버내부에 나선형 가이드홈이 형성된 음향공진형 기체용해장치를 개시한 바 있다.As such a tornado-type air diffuser, Korean Patent Registration No. 0206746 uses energy generated by the rotational vortex of air and acoustic resonance to split gas droplets into small pieces, and increases the solubility of gas, particularly oxygen, to increase oxygen transfer efficiency. The air diffuser using acoustic resonance has been disclosed, and Korean Patent Registration No. 0289230 forms a spiral guide groove on the inner wall of the chamber, and high-pressure oxygen gas into the chamber so that it can spiral upward along the spiral guide groove. An acoustic resonance gas dissolution with a spiral guide groove formed inside the chamber to increase the solubility of oxygen gas in the wastewater by generating a vortex by injection The device has been disclosed.
그러나, 선행특허에서 폐수 처리 시 산소 공급에 있어 산소의 용해도를 증가시켜 산소전달 효율이 증가된 산기장치를 제시하였으나, 여전히 산소 용해 성능이 더욱 향상된 산기장치가 요구되고 있다.However, although the prior patent suggests an air diffuser with increased oxygen transfer efficiency by increasing the solubility of oxygen in oxygen supply during wastewater treatment, there is still a need for an air diffuser with improved oxygen dissolution performance.
따라서 본 발명은 산소 용해 성능이 극대화된 토네이도형 산기장치를 제공하고자 한다.Accordingly, an object of the present invention is to provide a tornado-type air diffuser with maximized oxygen dissolution performance.
상기 과제를 해결하기 위하여 본 발명은, 공기가 주입되도록 내부에 주입구가 형성된 접속부재; 상기 주입구를 통해 하부로 유입되어 회전 소용돌이(vortex)를 형성하는 공기가 음향에너지를 발생시키면서 수중으로 공급되도록 하는 출구가 형성되고, 내측 상부가 상방으로 좁아지도록 테이퍼진 형상의 챔버;를 포함하는 토네이도형 산기장치에 있어서, 상기 챔버는 상기 출구 둘레를 따라서 수직 방향에 대해 경사진 복수의 연장돌기가 형성된 것을 특징으로 하는 토네이도형 산기장치를 제공한다.In order to solve the above problems, the present invention, a connection member having an injection hole formed therein so that air is injected; A tornado containing; an outlet is formed so that air flowing into the lower part through the inlet and forming a rotational vortex is supplied into the water while generating acoustic energy, the chamber is tapered so that the inner upper part is narrowed upward In the type diffuser, the chamber provides a tornado type diffuser, characterized in that along the periphery of the outlet a plurality of extension projections inclined with respect to the vertical direction are formed.
또한 상기 주입구는 상기 챔버 방향 상방으로 경사진 것을 특징으로 하는 토네이도형 산기장치를 제공한다.In addition, there is provided a tornado type diffuser, characterized in that the inlet is inclined upward in the direction of the chamber.
또한 상기 주입구의 경사각은 1 내지 15°인 것을 특징으로 하는 토네이도형 산기장치를 제공한다.In addition, the inclination angle of the injection hole provides a tornado type diffuser, characterized in that 1 to 15 °.
또한 상기 연장돌기의 경사각은 5 내지 45°인 것을 특징으로 하는 토네이도형 형 산기장치를 제공한다.In addition, there is provided a tornado-type diffuser, characterized in that the inclination angle of the extension protrusion is 5 to 45 °.
또한 상기 연장돌기의 일 단부와 이웃한 연장돌기의 타 단부는 수직단면 기준으로 동일선상에 형성된 것을 특징으로 하는 토네이도형 산기장치를 제공한다.In addition, there is provided a tornado-type diffuser, characterized in that one end of the extension protrusion and the other end of the adjacent extension protrusion are formed on the same line with respect to a vertical section.
또한 상기 연장돌기는 하방으로 깎여진 챔퍼 형상인 것을 특징으로 하는 토네이도형 산기장치를 제공한다.In addition, the extension protrusion provides a tornado-type diffuser, characterized in that the downwardly chamfered shape.
또한 상기 챔버 하부의 코너는 라운드진 형상인 것을 특징으로 하는 토네이도형 산기장치를 제공한다.In addition, there is provided a tornado-type diffuser, characterized in that the corner of the lower chamber has a rounded shape.
또한 상기 챔버의 하부는 바닥 중앙부가 개구된 것을 특징으로 하는 토네이도형 형 산기장치를 제공한다.In addition, the lower part of the chamber provides a tornado-type diffuser, characterized in that the bottom center portion is opened.
또한 상기 개구된 부분의 둘레를 따라서 수직 방향에 대해 경사진 복수의 연장돌기가 형성되되, 상기 개구된 부분은 상방으로 좁아지도록 테이퍼진 형상이고, 상기 연장돌기는 상기 테이퍼진 면상에 형성된 것을 특징으로 하는 토네이도형 산기장치를 제공한다.In addition, a plurality of extension projections inclined in a vertical direction are formed along the circumference of the open portion, the open portion has a tapered shape to narrow upward, and the extension projection is formed on the tapered surface, characterized in that It provides a tornado type air diffuser.
또한 상기 접속부재가 반대 방향에도 형성된 듀얼 타입인 것을 특징으로 하는 토네이도형 산기장치를 제공한다.In addition, there is provided a tornado-type diffuser, characterized in that the connection member is a dual type formed in the opposite direction.
본 발명에 따르면, 접속부재와, 출구가 형성된 챔버로 구성되는 토네이도형 산기장치에 있어, 챔버가 출구 둘레를 따라서 수직 방향에 대해 경사진 복수의 연장돌기가 형성되도록 하여 종래 토네이도형 산기장치 대비 산소 용해 성능이 극적으로 향상된 토네이도형 산기장치를 제공할 수 있다.According to the present invention, in a tornado-type diffuser comprising a connection member and a chamber in which an outlet is formed, a plurality of extension protrusions are formed in which the chamber is inclined in a vertical direction along the periphery of the outlet, so that oxygen compared to a conventional tornado-type diffuser It is possible to provide a tornado-type diffuser with dramatically improved dissolution performance.
도 1은 종래 폐수 처리 시 산소 공급을 위한 산기장치를 예시적으로 나타낸 도면,1 is a view exemplarily showing an air diffuser for supplying oxygen during wastewater treatment in the related art;
도 2 및 도 3는 각각 본 발명의 제1 실시예에 따른 토네이도형 산기장치를 나타낸 외부사시도 및 단면사시도,2 and 3 are an external perspective view and a cross-sectional perspective view, respectively, showing a tornado-type diffuser device according to the first embodiment of the present invention;
도 4는 토네이도형 산기장치에서 기체방울이 방출되는 양상을 모식적으로 나타낸 도면,Figure 4 is a view schematically showing the state in which gas bubbles are emitted from the tornado-type air diffuser;
도 5는 본 발명의 제1 실시예에 따른 토네이도형 산기장치의 종단면도,5 is a longitudinal cross-sectional view of a tornado-type diffuser according to a first embodiment of the present invention;
도 6은 본 발명의 제1 실시예에 따른 토네이도형 산기장치의 연장돌기 형상을 모식적으로 나타낸 도면,6 is a view schematically showing the shape of the extension protrusion of the tornado-type diffuser according to the first embodiment of the present invention;
도 7은 본 발명의 제1 실시예에 따른 토네이도형 산기장치의 챔버 형상을 모식적으로 나타낸 도면,7 is a view schematically showing the shape of the chamber of the tornado type air diffuser according to the first embodiment of the present invention;
도 8은 본 발명의 제2 실시예에 따른 토네이도형 산기장치를 나타낸 외부사시도,8 is an external perspective view showing a tornado-type diffuser device according to a second embodiment of the present invention;
도 9는 본 발명의 제3 실시예에 따른 토네이도형 산기장치를 나타낸 외부사시도.9 is an external perspective view showing a tornado-type diffuser according to a third embodiment of the present invention;
이하에서는 본 발명의 바람직한 실시예를 첨부한 도면을 참고하여 상세하게 설명한다. 본 발명을 설명함에 있어서 관련된 공지 기술에 대한 구체적인 설명이 본 발명의 요지를 흐리게 할 수 있다고 판단되는 경우 그 상세한 설명을 생략하기로 한다. 도면에서 본 발명을 명확하게 설명하기 위하여 설명과 관계없는 부분은 생략하였고, 명세서 전체를 통하여 유사한 부분에 대해서는 유사한 도면 부호를 부여하였으며, 산기장치 상에 도시된 세부 구성의 방향은 도면을 기준으로 하여 설명한다. 또한, 명세서 전체에서, 어떤 부분이 어떤 구성요소를 "포함"한다고 할 때, 이는 특별히 반대되는 기재가 없는 한, 다른 구성요소를 제외하는 것이 아니라 다른 구성요소를 더 포함할 수 있음을 의미한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, if it is determined that a detailed description of a related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted. In order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, similar reference numerals are given to similar parts throughout the specification, and the direction of the detailed configuration shown on the diffuser is based on the drawings. Explain. Also, throughout the specification, when a part "includes" a certain component, it means that other components may be further included, rather than excluding other components, unless otherwise stated.
도 2 및 도 3은 각각 본 발명의 제1 실시예에 따른 토네이도형 산기장치를 나타낸 외부사시도 및 단면사시도이다.2 and 3 are an external perspective view and a cross-sectional perspective view, respectively, showing a tornado-type diffuser according to the first embodiment of the present invention.
도 2 및 도 3을 참조하면, 본 발명에 따른 토네이도형 산기장치(100)는 기본적으로 공기(또는 산소, 이하 동일)가 주입되도록 내부에 주입구(111)가 형성된 접속부재(110)와, 상기 주입구(111)를 통해 하부로 유입되어 회전 소용돌이(vortex)를 형성하는 공기가 음향에너지를 발생시키면서 수중으로 공급되도록 하는 출구(121)가 형성되고, 내측 상부(122)가 상방으로 좁아지도록 테이퍼진 형상의 챔버(120)를 포함한다.2 and 3, the tornado type air diffuser 100 according to the present invention basically includes a connection member 110 having an injection hole 111 formed therein so that air (or oxygen, hereinafter the same) is injected, and the The outlet 121 is formed so that the air flowing into the lower part through the inlet 111 and forming a rotational vortex is supplied into the water while generating acoustic energy, and the inner upper part 122 is tapered to narrow upward. It includes a shaped chamber 120 .
이러한 토네이도형 산기장치(100)의 산소 용해 성능 구현 과정을 살펴보면, 먼저 기체가 챔버(120)의 접선방향으로 형성된 주입구(111)로 유입되면 회전 소용돌이(vortex)가 형성되면서 출구(121)로 빠져 나간다. 이때, 주입구(111)에서 Pair의 압력으로 유입된 기체는 챔버(120) 내에서 접선 방향으로 회전하기 때문에 챔버(120) 중앙부의 압력은 상대적으로 낮고 바깥쪽으로 갈수록 압력이 낮아진다. 따라서, 압력이 상대적으로 낮은 챔버(120)의 출구(121) 중앙으로부터 물이 챔버(120) 내로 유입되며, 유입된 물은 회전하고 있는 기체에 휘말려 원운동을 하게 되고, 원운동의 원심력에 의하여 물은 챔버(120)의 바깥쪽으로 나가면서 챔버(120) 하부(123)에서 회전하면서 올라오는 기체와 함께 회전 소용돌이를 형성하면서 수중으로 기체가 잘게 쪼개지면서 방출된다. 수중으로 방출될 때, 챔버(120) 내로 유입되는 물과 방출되는 물/기체 사이에는 서로의 압력차에 의하여 주파수(F)로 공진이 발생하게 되며, 공진에 의한 음향에너지가 물속으로 전달되면서 공기방울에서 물로의 물질전달저항을 감소시켜, 기체(산소)의 용해속도를 빠르게 한다. 뿐만 아니라, 이러한 공진에 의하여 수중의 기체방울은 수직상승을 하지 않고 수평운동을 하면서 상승하기 때문에 기체의 수중에서의 체류시간을 증가시켜, 더 많은 기체가 용해될 수 있게 한다.Looking at the process of implementing the oxygen dissolution performance of the tornado-type air diffuser 100 , first, when gas flows into the inlet 111 formed in the tangential direction of the chamber 120 , a rotational vortex is formed and falls out through the outlet 121 . I'm going. At this time, since the gas introduced at the pressure of P air from the inlet 111 rotates in a tangential direction within the chamber 120 , the pressure in the center of the chamber 120 is relatively low and the pressure decreases toward the outside. Therefore, water is introduced into the chamber 120 from the center of the outlet 121 of the chamber 120, where the pressure is relatively low, and the introduced water is entrained in the rotating gas to make a circular motion, and by the centrifugal force of the circular motion As the water goes out of the chamber 120 and forms a rotating vortex with the gas that rises while rotating from the lower part 123 of the chamber 120, the gas is split into water and released. When released into the water, a resonance occurs at a frequency (F) due to a pressure difference between the water flowing into the chamber 120 and the water/gas being discharged, and the acoustic energy due to the resonance is transferred into the water while the air By reducing the mass transfer resistance from the droplet to water, it speeds up the dissolution rate of gas (oxygen). In addition, because the gas bubbles in the water do not rise vertically due to this resonance, but rise while moving horizontally, the residence time of the gas in water is increased, so that more gas can be dissolved.
이때 공진주파수는 하기 수학식 1과 같다.At this time, the resonance frequency is as shown in Equation 1 below.
[수학식 1][Equation 1]
Figure PCTKR2021007486-appb-I000001
Figure PCTKR2021007486-appb-I000001
여기서,　음향공진의 크기 및 주파수는 챔버(120) 내의 마찰로 인한 공기의 회전속도 감소와 연관된 계수(K), 챔버 하부(123)의 직경(d1), 챔버 하부(123)의 지름에서 수직으로 뻗은 높이(h1), 유입공기의 압력(Pair), 산기장치 출구(121)에서의 물의 압력(Pwater)에 의해 좌우된다(도 7 참조). 또한 C는 음속으로서, 본 발명에서는 기체와 물이 혼합된 상태의 매질에서의 음속이나, 실제 산기장치의 작동조건에서는 기체가 대부분의 매질을 차지하기 때문에 공기중의 음속(340 m/s)에 가깝다. 또한 계수 K는 산기장치에 따라 실험에 의해 측정된다.Here, the size and frequency of the acoustic resonance are a coefficient (K) associated with a decrease in the rotational speed of air due to friction in the chamber 120, the diameter (d1) of the chamber lower part 123, and the diameter of the chamber lower part 123. It is influenced by the stretched height h1, the pressure of the inlet air (P air ), and the pressure of water at the outlet 121 of the aerator (P water ) (see FIG. 7 ). In addition, C is the speed of sound. In the present invention, the speed of sound in a medium in which gas and water are mixed, but in the actual operating conditions of the air diffuser, since gas occupies most of the medium, close. Also, the coefficient K is measured by experiment according to the diffuser.
한편, 토네이도형 산기장치(100)에 있어 본 발명과 같이 챔버(120)의 내측 상부(122)가 상방으로 좁아지도록 테이퍼진 형상, 즉, 챔버(120)의 상부(122) 직경(d2)이 하부 직경(d1)보다 작을 경우(도 7 참조), 그렇지 않은 경우보다 산기장치(100)의 산소 용해 성능이 더욱 우수하다.On the other hand, in the tornado type air diffuser 100, as in the present invention, the inner upper portion 122 of the chamber 120 is tapered to narrow upward, that is, the upper portion 122 of the chamber 120 has a diameter d2. When it is smaller than the lower diameter d1 (refer to FIG. 7), the oxygen dissolution performance of the air diffuser 100 is better than that of the other case.
본 발명에서는 상기 챔버(120)가 상기 출구(121) 둘레를 따라서 수직 방향에 대해 경사진 복수의 연장돌기(124)가 형성됨으로써 종래 토네이도형 산기장치 대비 산소 용해 성능이 극대화된다.In the present invention, the chamber 120 is provided with a plurality of extension protrusions 124 inclined in the vertical direction along the circumference of the outlet 121, thereby maximizing the oxygen dissolution performance compared to the conventional tornado type diffuser.
즉, 상기 출구(121) 둘레에 돌기가 형성되지 않은 종래 토네이도형 산기장치에서는 기체방울이 출구(121)에서 수중으로 방출될 때 이미 형성된 회전 소용돌이와 테이퍼진 상부(122) 형상에 따른 기체 상승 속도의 증가에 의한 쪼개짐 이외에 기체방울의 쪼개짐을 더욱 가속화시킬 수 있는 구조적 수단이 부재하다.That is, in the conventional tornado-type diffuser in which no protrusions are formed around the outlet 121, the rotational vortex already formed when gas bubbles are discharged into the water at the outlet 121 and the gas rising speed according to the tapered upper 122 shape. There is no structural means capable of further accelerating the cleavage of the gas bubble other than the cleavage by increase.
도 4는 토네이도형 산기장치에서 기체방울이 방출되는 양상을 모식적으로 나타낸 도면이다.4 is a diagram schematically illustrating a state in which gas bubbles are emitted from a tornado-type air diffuser.
도 4를 참조하면, 본 발명에서는 챔버(120) 내부에서 기체방울이 가장 가속화되는 테이퍼진 상부(122)의 끝단에 돌기(124)가 연장 형성되어 기체방울이 출구(121)에서 수중으로 방출되기 직전, 돌기(124)에 먼저 충돌함으로써 기체방울의 쪼개짐을 극대화시킨다. 또한, 종래 토네이도형 산기장치의 경우 기체방울이 한 줄기의 회전 소용돌이에 의해 모두 포섭되어 산발되는 효과가 더 이상 증대되기 어려우나(도 4(a) 참조), 본 발명에서는 연장돌기(124)가 출구(121) 둘레를 따라 경사진 방향으로 일정 간격으로 배열되어 회전 소용돌이가 형성된 연장돌기(124) 수 만큼 분할되어, 방출되는 기체방울의 산발 효과가 폭발적으로 증대되고, 본 발명에서는 이를 '에어스톰(air storm) 효과'라 칭하기로 한다(도 4(b) 참조).4, in the present invention, the protrusion 124 is extended at the end of the tapered upper part 122 where the gas bubbles are most accelerated inside the chamber 120, so that the gas bubbles are discharged from the outlet 121 into the water immediately before, By first colliding with the projection 124, the splitting of the gas bubble is maximized. In addition, in the case of a conventional tornado-type diffuser, the effect of scattering gas bubbles are all covered by a rotating vortex of one stem is difficult to increase any more (see Fig. 4(a)), but in the present invention, the extension protrusion 124 is the outlet ( 121) It is divided by the number of extension protrusions 124 arranged at regular intervals in an inclined direction along the circumference to form a rotational vortex, and the scattering effect of the emitted gas bubbles is explosively increased, and in the present invention, it is storm) effect' (see FIG. 4(b)).
도 5는 본 발명의 제1 실시예에 따른 토네이도형 산기장치의 종단면도이다.5 is a longitudinal cross-sectional view of a tornado-type diffuser according to the first embodiment of the present invention.
도 5를 참조하면, 본 발명에서 상기 주입구(111)는 상기 챔버(120) 방향 상방으로 경사지도록 형성되어, 주입구(111)로 유입되는 공기가 상방으로 회전 소용돌이가 원활하게 형성될 수 있도록 할 수 있다. 이때, 주입구(111)의 경사각(θ1)은 1 내지 15°일 수 있고, 바람직하게는 2 내지 10°, 더욱 바람직하게는 3 내지 5°일 수 있다.5, in the present invention, the inlet 111 is formed to be inclined upward in the direction of the chamber 120, so that the air flowing into the inlet 111 can smoothly form a rotational vortex upward. have. In this case, the inclination angle θ1 of the injection hole 111 may be 1 to 15°, preferably 2 to 10°, more preferably 3 to 5°.
또한 도 5를 참조하면, 본 발명에서 상기 연장돌기(124)의 경사각(θ2)은 챔버 하부(123)에서 형성된 회전 소용돌이의 상승각이 테이퍼진 형상의 상부(122)에서 보다 커지는 것을 고려하여 10 내지 80°일 수 있고, 바람직하게는 20 내지 70°, 더욱 바람직하게는 30 내지 60°로 형성되도록 할 수 있다.Also, referring to FIG. 5 , in the present invention, the inclination angle θ2 of the extension protrusion 124 is 10 considering that the rising angle of the rotational vortex formed in the chamber lower portion 123 is greater than in the tapered upper portion 122 . to 80°, preferably 20 to 70°, and more preferably 30 to 60°.
또한 도 5를 참조하면, 상기 연장돌기(124)의 일 단부와 이웃한 연장돌기(124)의 타 단부는 수직단면 기준으로 동일선상에 형성될 경우, 즉, 연장돌기(124)의 상단부의 수직하방으로 이웃한 연장돌기(124)의 하단부가 위치(점선 'L' 참조)하도록 할 경우 그렇지 않은 경우 대비 방출되는 공기방울의 압력이 보다 강해져 산소 용해 성능을 더욱 향상시킬 수 있다.Also, referring to FIG. 5 , when one end of the extension protrusion 124 and the other end of the extension protrusion 124 adjacent to each other are formed on the same line based on a vertical cross-section, that is, the upper end of the extension protrusion 124 is vertical. When the lower end of the downwardly adjacent extension protrusion 124 is positioned (refer to the dotted line 'L'), the pressure of the emitted air bubbles becomes stronger compared to the case where it is not, so that the oxygen dissolution performance can be further improved.
도 6은 본 발명의 제1 실시예에 따른 토네이도형 산기장치의 연장돌기 형상을 모식적으로 나타낸 도면이다.6 is a view schematically showing the shape of the extension protrusion of the tornado-type diffuser according to the first embodiment of the present invention.
도 6을 참조하면, 본 발명에서 상기 연장돌기(124)는 돌출 높이(h2)가 동일한 형상(a)일 수 있으나, 하방으로 깎여진 챔퍼 형상(b)일 경우 상방으로 좁아지도록 테이퍼진 형상의 챔버 상부(122)를 이단(二段)으로 테이퍼진 형상의 효과를 얻도록 하여, 더욱 극대화된 산소 용해 성능이 구현되도록 할 수 있다.Referring to FIG. 6 , in the present invention, the extension protrusion 124 may have the same height h2 as the shape (a), but in the case of a chamfer shape (b) cut downwards, the extension protrusion 124 has a tapered shape to narrow upward. By making the upper chamber 122 to obtain the effect of a tapered shape in two stages, it is possible to realize more maximized oxygen dissolution performance.
도 7은 본 발명의 제1 실시예에 따른 토네이도형 산기장치의 챔버 형상을 모식적으로 나타낸 도면이다.7 is a view schematically showing the shape of the chamber of the tornado-type air diffuser according to the first embodiment of the present invention.
도 7을 참조하면, 본 발명에서 상기 챔버 하부(123)의 코너(125)는 직각 형상(a)일 수 있으나, 바람직하게는 라운드진 형상(b)으로 형성되어 주입구(111)로 유입된 공기의 회전 소용돌이 형성이 보다 원활히 이루어질 수 있도록 한다.Referring to FIG. 7 , in the present invention, the corner 125 of the lower chamber 123 may have a right-angled shape (a), but is preferably formed in a rounded shape (b) and introduced into the inlet 111 by air. of the rotational vortex to be formed more smoothly.
도 8은 본 발명의 제2 실시예에 따른 토네이도형 산기장치를 나타낸 외부사시도이다.8 is an external perspective view showing a tornado-type diffuser according to a second embodiment of the present invention.
도 8을 참조하면, 본 발명에 따른 토네이도형 산기장치(100)는 상기 챔버 하부(123)의 바닥 중앙부가 개구된 형태일 수 있다. 이러한 챔버 하부(123)가 개구된 형태의 산기장치에서는 하부(123)에 형성되는 회전 소용돌이에 의해 산기장치(100) 아래에 부유 또는 침전된 고상물 또한 유입되도록 하여 처리될 수 있도록 한다. 따라서 본 발명에 따르면, 에어스톰을 발생시키면서 침전물 제거 역할도 하는 새로운 개념의 산기장치로서, 침전물 제거 기능을 겸비한 에어스톰을 발생시키는 토네이도형 산기장치를 제공하게 된다.Referring to FIG. 8 , the tornado-type diffuser 100 according to the present invention may have an open bottom center portion of the chamber lower portion 123 . In the diffuser having the chamber lower part 123 opened, the solid matter suspended or deposited under the diffuser 100 is also introduced by the rotating vortex formed in the lower part 123 to be treated. Therefore, according to the present invention, there is provided a tornado-type air diffuser that generates an air storm having a function of removing sediment as a new concept air diffuser that also serves to remove sediment while generating an air storm.
이때, 상기 개구된 부분(126)의 둘레를 따라서 수직 방향에 대해 경사진 복수의 연장돌기(127)가 형성되되, 상기 개구된 부분(126)은 상방으로 좁아지도록 테이퍼진 형상이고, 상기 연장돌기(127)는 상기 테이퍼진 면상에 형성되도록 할 수 있으며, 이에 따라 개구부(126) 아래에서 유입되는 고상물이 회전 소용돌이에 고르게 편입되어 수처리가 보다 효율적으로 진행되도록 할 뿐 아니라, 챔버 하부(123)에서부터 회전 소용돌이의 발생을 유도하여 챔버 상부(122)에서의 회전 소용돌이의 세기 및 이로 인한 공기방울의 쪼개짐을 더욱 극대화할 수 있게 된다.At this time, a plurality of extension protrusions 127 inclined in a vertical direction are formed along the circumference of the open portion 126 , and the open portion 126 has a tapered shape to be narrowed upward, and the extension protrusions are formed. 127 may be formed on the tapered surface, and accordingly, the solid material flowing in from below the opening 126 is evenly incorporated into the rotating vortex, so that water treatment proceeds more efficiently, as well as the lower chamber 123 It is possible to further maximize the intensity of the rotational vortex in the upper chamber 122 and the splitting of air bubbles resulting therefrom by inducing the generation of a rotational vortex from.
도 9는 본 발명의 제3 실시예에 따른 토네이도형 산기장치를 나타낸 외부사시도이다.9 is an external perspective view showing a tornado-type diffuser according to a third embodiment of the present invention.
도 9를 참조하면, 본 발명에 따른 토네이도형 산기장치(100)는 상기 접속부재(110)가 반대 방향에도 형성된 듀얼 타입일 수 있으며, 이에 따라 챔버(120) 내부로 고압 주입되는 공기의 압력을 배가시켜 더욱 강력한 회전 소용돌이가 유발되도록 함으로써 결과적으로 산소 용해 성능을 더욱 향상시킬 수 있게 된다.Referring to FIG. 9 , the tornado-type diffuser 100 according to the present invention may be of a dual type in which the connection member 110 is also formed in the opposite direction, and thus the pressure of the air injected into the chamber 120 at high pressure is reduced. By doubling it to induce a more powerful rotating vortex, it is possible to further improve the oxygen dissolution performance as a result.
이상으로 본 발명의 바람직한 실시예를 도면을 참고하여 상세하게 설명하였다. 본 발명의 설명은 예시를 위한 것이며, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자는 본 발명의 기술적 사상이나 필수적인 특징을 변경하지 않고서 다른 구체적인 형태로 쉽게 변형이 가능하다는 것을 이해할 수 있을 것이다.As above, preferred embodiments of the present invention have been described in detail with reference to the drawings. The description of the present invention is for illustrative purposes, and those skilled in the art to which the present invention pertains will understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention.
따라서, 본 발명의 범위는 상기 상세한 설명보다는 후술하는 특허청구범위에 의하여 나타내어지며, 특허청구범위의 의미, 범위 및 그 균등 개념으로부터 도출되는 모든 변경 또는 변형된 형태가 본 발명의 범위에 포함되는 것으로 해석되어야 한다.Accordingly, the scope of the present invention is indicated by the claims described below rather than the above detailed description, and all changes or modifications derived from the meaning, scope, and equivalent concept of the claims are included in the scope of the present invention. should be interpreted
* 부호의 설명* Explanation of symbols
100 : 토네이도형 산기장치 110 : 접속부재100: tornado-type diffuser 110: connection member
111 : 주입구 120 : 챔버111: inlet 120: chamber
121 : 출구 122 : 챔버 상부121: outlet 122: upper chamber
123 : 챔버 하부 124 : 연장돌기123: lower chamber 124: extension protrusion
125 : 챔버 하부의 코너 126 : 개구부125: corner of the lower chamber 126: opening
127 : 개구부의 연장돌기 d1 : 챔버 하부의 직경127: extension protrusion of opening d1: diameter of lower chamber
d2 : 챔버 상부의 직경 θ1 : 주입구의 경사각d2: diameter of upper chamber θ1: inclination angle of inlet
θ2 : 연장돌기의 경사각θ2: angle of inclination of the extension protrusion

Claims (10)

  1. 공기가 주입되도록 내부에 주입구가 형성된 접속부재; 상기 주입구를 통해 하부로 유입되어 회전 소용돌이(vortex)를 형성하는 공기가 음향에너지를 발생시키면서 수중으로 공급되도록 하는 출구가 형성되고, 내측 상부가 상방으로 좁아지도록 테이퍼진 형상의 챔버;를 포함하는 토네이도형 산기장치에 있어서,a connection member having an injection hole formed therein so that air is injected; A tornado containing; an outlet is formed so that air flowing into the lower part through the inlet and forming a rotational vortex is supplied into the water while generating acoustic energy, the chamber is tapered so that the inner upper part is narrowed upward In the type diffuser,
    상기 챔버는 상기 출구 둘레를 따라서 수직 방향에 대해 경사진 복수의 연장돌기가 형성된 것을 특징으로 하는 토네이도형 산기장치.The chamber is a tornado-type diffuser, characterized in that along the periphery of the outlet is formed with a plurality of extension projections inclined with respect to the vertical direction.
  2. 제1항에 있어서,According to claim 1,
    상기 주입구는 상기 챔버 방향 상방으로 경사진 것을 특징으로 하는 토네이도형 산기장치.The inlet is a tornado type diffuser, characterized in that inclined upward in the direction of the chamber.
  3. 제2항에 있어서,3. The method of claim 2,
    상기 주입구의 경사각은 1 내지 15°인 것을 특징으로 하는 토네이도형 산기장치.A tornado-type diffuser, characterized in that the inclination angle of the inlet is 1 to 15°.
  4. 제1항에 있어서,The method of claim 1,
    상기 연장돌기의 경사각은 10 내지 80°인 것을 특징으로 하는 토네이도형 산기장치.The inclination angle of the extension protrusion is 10 to 80°.
  5. 제1항에 있어서,According to claim 1,
    상기 연장돌기의 일 단부와 이웃한 연장돌기의 타 단부는 수직단면 기준으로 동일선상에 형성된 것을 특징으로 하는 토네이도형 산기장치.One end of the extension protrusion and the other end of the adjacent extension protrusion are formed on the same line with respect to a vertical section.
  6. 제1항에 있어서,According to claim 1,
    상기 연장돌기는 하방으로 깎여진 챔퍼 형상인 것을 특징으로 하는 토네이도형 산기장치.The extension protrusion is a tornado type diffuser, characterized in that the downwardly chamfered shape.
  7. 제1항에 있어서,According to claim 1,
    상기 챔버 하부의 코너는 라운드진 형상인 것을 특징으로 하는 토네이도형 산기장치.A tornado-type diffuser, characterized in that the corners of the lower chamber have a rounded shape.
  8. 제1항에 있어서,According to claim 1,
    상기 챔버의 하부는 바닥 중앙부가 개구된 것을 특징으로 하는 토네이도형 형 산기장치.A tornado-type diffuser, characterized in that the lower part of the chamber has an open bottom center part.
  9. 제8항에 있어서,9. The method of claim 8,
    상기 개구된 부분의 둘레를 따라서 수직 방향에 대해 경사진 복수의 연장돌기가 형성되되, 상기 개구된 부분은 상방으로 좁아지도록 테이퍼진 형상이고, 상기 연장돌기는 상기 테이퍼진 면상에 형성된 것을 특징으로 하는 토네이도형 산기장치.A plurality of extension projections inclined in a vertical direction are formed along the periphery of the open portion, the open portion has a tapered shape to narrow upward, and the extension projection is formed on the tapered surface, characterized in that Tornado type air diffuser.
  10. 제1항에 있어서,According to claim 1,
    상기 접속부재가 반대 방향에도 형성된 듀얼 타입인 것을 특징으로 하는 토네이도형 산기장치.A tornado-type diffuser device, characterized in that the connection member is of a dual type formed in opposite directions.
PCT/KR2021/007486 2020-06-19 2021-06-15 Tornado type aeration device having improved oxygen dissolution performance and generating air storm WO2021256833A1 (en)

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Citations (5)

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Publication number Priority date Publication date Assignee Title
KR19980059446U (en) * 1998-07-16 1998-10-26 남송희 Air diffuser that converts fine air into powerful whirlwind after forming fine air with shock wave
KR20050026644A (en) * 2003-09-09 2005-03-15 고등기술연구원연구조합 Air diffuser using acoustic resonance with multiple air inlets
JP2008119567A (en) * 2006-11-08 2008-05-29 Yokota Seisakusho:Kk Microbubble generation device
JP2015120137A (en) * 2013-12-25 2015-07-02 富士重工業株式会社 Air diffusion nozzle
KR102159587B1 (en) * 2020-06-19 2020-09-24 (주)이앤씨 A tornado type air diffuser generating air storm having improved performance of dissolving oxygen

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980059446U (en) * 1998-07-16 1998-10-26 남송희 Air diffuser that converts fine air into powerful whirlwind after forming fine air with shock wave
KR20050026644A (en) * 2003-09-09 2005-03-15 고등기술연구원연구조합 Air diffuser using acoustic resonance with multiple air inlets
JP2008119567A (en) * 2006-11-08 2008-05-29 Yokota Seisakusho:Kk Microbubble generation device
JP2015120137A (en) * 2013-12-25 2015-07-02 富士重工業株式会社 Air diffusion nozzle
KR102159587B1 (en) * 2020-06-19 2020-09-24 (주)이앤씨 A tornado type air diffuser generating air storm having improved performance of dissolving oxygen

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