JPH04197428A - Fluid mixing apparatus - Google Patents
Fluid mixing apparatusInfo
- Publication number
- JPH04197428A JPH04197428A JP2332070A JP33207090A JPH04197428A JP H04197428 A JPH04197428 A JP H04197428A JP 2332070 A JP2332070 A JP 2332070A JP 33207090 A JP33207090 A JP 33207090A JP H04197428 A JPH04197428 A JP H04197428A
- Authority
- JP
- Japan
- Prior art keywords
- air
- fluid
- waste water
- tank
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 39
- 239000007788 liquid Substances 0.000 claims abstract description 21
- 238000003756 stirring Methods 0.000 abstract description 23
- 239000002351 wastewater Substances 0.000 abstract description 18
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052760 oxygen Inorganic materials 0.000 abstract description 6
- 239000001301 oxygen Substances 0.000 abstract description 6
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 241000894006 Bacteria Species 0.000 abstract 2
- 238000004065 wastewater treatment Methods 0.000 description 16
- 244000005700 microbiome Species 0.000 description 7
- 238000004090 dissolution Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Farming Of Fish And Shellfish (AREA)
- Biological Treatment Of Waste Water (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明はオゾン水の製造装置や活魚水槽および排水処理
装置などに使用される流体混合装置に関するものである
。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a fluid mixing device used in an ozone water production device, a live fish tank, a wastewater treatment device, and the like.
従来の技術
第５図は従来の流体混合装置の適用例を示す排水処理装
置の概略断面図である。第５図において、従来、流体混
合装置が使用される家庭排水や下水などの排水処理装置
は、処理槽ｌの内部に微生物担体２を設けるとともに、
排水液中に空気を混合させる流体混合装置を微生物担体
２の下方に設けている。この流体混合装置としては、空
気を送るブロワ３に空気供給管４を介して接続された散
気管５を用い、この散気管５は処理槽１の内方底部に配
置され、散気管５から排水液中に空気を吹き込むことに
より排水液中に空気を混合させるとともに混合流Ａを発
生させる。この混合流人を、微生物担体２に担持された
微生物に供給するようにしている。この微生物により排
水処理かなされる。BACKGROUND OF THE INVENTION FIG. 5 is a schematic cross-sectional view of a wastewater treatment device showing an application example of a conventional fluid mixing device. In FIG. 5, conventional wastewater treatment equipment for household wastewater, sewage, etc. in which a fluid mixing device is used has a microorganism carrier 2 inside a treatment tank l, and
A fluid mixing device for mixing air into the drainage liquid is provided below the microorganism carrier 2. This fluid mixing device uses an aeration pipe 5 connected to a blower 3 that sends air via an air supply pipe 4. By blowing air into the liquid, the air is mixed into the drainage liquid and a mixed flow A is generated. This mixed flow is supplied to the microorganisms supported on the microorganism carrier 2. Wastewater treatment is carried out by these microorganisms.
６は排水液の供給管であり、７は処理水の取り出し管で
ある。6 is a supply pipe for waste water, and 7 is a pipe for taking out treated water.
発明か解決しようとする課題
上記従来の流体混合装置では、排水液中への空気の混合
効率か悪く、つまり排水液に対する酸素溶解効率か低く
、このため排水液の処理効率が悪いという問題を有して
いた。Problems to be Solved by the Invention The conventional fluid mixing device described above has a problem in that the efficiency of mixing air into the wastewater is poor, that is, the efficiency of dissolving oxygen in the wastewater is low, and therefore the treatment efficiency of the wastewater is poor. Was.
本発明は上記従来の問題を解決するもので、槽内の流体
混合効率を向上させることかでき、特に、排水処理装置
として使用する場合は、その酸素溶解効率を向上させる
ことかできる流体混合装置を提供することを目的とする
ものである。The present invention solves the above-mentioned conventional problems, and is a fluid mixing device that can improve the fluid mixing efficiency in a tank, and in particular, when used as a wastewater treatment device, can improve the oxygen dissolution efficiency. The purpose is to provide the following.
課題を解決するための手段
上記課題１を一決するために本発明の流体混合装置は、
液中に混合される流体の供給手段を設け、前記供給手段
の下流側に、前記供給流体を粉砕するとともに、前記液
と流体の混合流を発生させる回転翼を設けたことを特徴
とするものである。Means for Solving the Problems In order to solve the above problem 1, the fluid mixing device of the present invention has the following features:
A device characterized in that a supply means for a fluid to be mixed in the liquid is provided, and a rotary blade is provided downstream of the supply means for pulverizing the supply fluid and generating a mixed flow of the liquid and the fluid. It is.
作用
上記構成により、供給手段により供給される流体は回転
翼を通過するときに回転翼で粉砕されて細かくなり液と
流体の混合流となるので、槽内の流体混合効率は向上し
、特に、排水処理装置として使用する場合は、排水液に
対する酸素溶解効率も大幅に向上して排水処理か効率良
く行なわれることになる。Effect With the above configuration, the fluid supplied by the supply means is crushed by the rotor when passing through the rotor and becomes finely divided into a mixed flow of liquid and fluid, so the fluid mixing efficiency in the tank is improved, and in particular, When used as a wastewater treatment device, the oxygen dissolution efficiency in the wastewater is greatly improved, and wastewater treatment can be carried out efficiently.
実施例
以下、本発明の一実施例について図面を参照しながら説
明する。なお、従来例と同一の作用効果を奏するものに
は同一の符号を付してその説明を省略する。EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings. It should be noted that the same reference numerals are given to those having the same functions and effects as those of the conventional example, and the explanation thereof will be omitted.
第１図は本発明の一実施例である流体混合装置の適用例
を示す排水処理装置の概略断面図である。FIG. 1 is a schematic sectional view of a wastewater treatment device showing an application example of a fluid mixing device according to an embodiment of the present invention.
第１図において、円筒形状の処理槽１の内部に複数の微
生物担体２を配設するとともに、処理槽ｌの内方中央部
に流体混合装置１１を配設している。In FIG. 1, a plurality of microorganism carriers 2 are arranged inside a cylindrical processing tank 1, and a fluid mixing device 11 is arranged at the inner center of the processing tank 1.
この流体混合装置ｌｌは、処理ＷＪ内の中央部に、その
上部近くから底部近くにかけて上下方向に配設された円
筒部１２と、この円筒部１２内下方に設置されその内部
、を排水液か通過することにより旋回流を発生させる複
数の小径管よりなる。パイプミキサ１３と、この各パイ
プミキサ１３の排水液流入部近傍に、処理槽１内の排水
液および空気を混合して供給する混合供給手段Ｉ４とを
備えている。This fluid mixing device 11 includes a cylindrical portion 12 disposed in a vertical direction from near the top to near the bottom in the center of the processing WJ, and a cylindrical portion 12 installed in the lower part of the cylindrical portion 12 to mix the inside with drainage liquid. It consists of a plurality of small diameter tubes that generate a swirling flow by passing through them. A pipe mixer 13 and a mixing supply means I4 for mixing and supplying the wastewater and air in the treatment tank 1 are provided near the wastewater inlet of each pipe mixer 13.
この混合供給手段１４は、モータ１５、このモータ１５
に連結された回転軸１６、この回転軸１６に上下２か所
設けられた攪拌翼１７ａ、、１７ｂからなる水中ミキサ
１８と、空気を送るブロワ３、このブロワ３に接続され
各攪拌翼１７ａ、 １７ｂ間の位置に開口し、排水液に
混合される流体である空気を供給する空気供給管４から
なる空気供給装置１９とで構成されている。This mixing and supplying means 14 includes a motor 15, this motor 15
A rotating shaft 16 connected to a rotating shaft 16, an underwater mixer 18 consisting of stirring blades 17a, 17b provided at two locations above and below this rotating shaft 16, a blower 3 that sends air, and each stirring blade 17a connected to this blower 3, 17b, and an air supply device 19 consisting of an air supply pipe 4 that supplies air, which is a fluid to be mixed with the drainage liquid.
上記構成により、まず、水中ミキサ１８の攪拌翼１７ａ
、 １７ｂの回転により、供給管６から供給された処理
槽１内の排水液は、円筒部１２上端開口部より取り入れ
られて攪拌翼１７ａ、 １７ｂで攪拌されながら円筒部
１２下方へと移流され、この移流時に、攪拌翼１７ａ、
１７ｂの間においてブロワ３がら空気供給管４を介し
て空気が吹き込まれる。With the above configuration, first, the stirring blade 17a of the submersible mixer 18
, 17b, the drainage liquid in the processing tank 1 supplied from the supply pipe 6 is taken in from the upper end opening of the cylindrical part 12 and advected to the lower part of the cylindrical part 12 while being stirred by the stirring blades 17a and 17b. During this advection, the stirring blades 17a,
Air is blown into the space between 17b from the blower 3 via the air supply pipe 4.
ここで、円筒部１２内の排水液の流速Ｗｖか早く、この
流速Ｗｖが、空気供給管４から吹き出された気泡Ｂの浮
上速度Ｂｖを上回るときには、第２図に示すように、気
泡Ｂは全て下側の攪拌翼１７ａを通過することで粉砕さ
れるので、気泡Ｂか細かく一是となって排水液に対する
空気の溶解効率も格段に向上することになる。また、排
水液の流速ＷＶが気泡Ｂの浮上速度Ｂｖを下回るとき、
つまり浮上速度Ｂｖが大きくなる大きい気泡Ｂ′のとき
には、気泡Ｂ゛は浮上して上側の攪拌翼１７ｂを通過す
ることで粉砕されるので、気泡Ｂが細かくなり、これに
より、浮上速度Ｂｖか小さくなって下方に送り込まれる
ことになる。したかって、攪拌翼１７ａ、 １７ｂの間
に空気供給管４の開口部を持っていれば、気泡サイズに
関係なく必ず下側の撹拌Ｘ １７ ａを通過することに
なり、気泡は粉砕され細かくなって排水液に良く溶は込
むことになる。Here, when the flow velocity Wv of the drainage liquid in the cylindrical portion 12 is high and this flow velocity Wv exceeds the floating velocity Bv of the bubbles B blown out from the air supply pipe 4, the bubbles B are Since all of the air is pulverized by passing through the lower stirring blade 17a, the air bubbles B become finer and the efficiency of dissolving air in the drainage liquid is significantly improved. Further, when the flow velocity WV of the drainage liquid is lower than the floating velocity Bv of the bubbles B,
In other words, when the bubble B' is large and the floating speed Bv increases, the bubble B' floats up and is crushed by passing through the upper stirring blade 17b, so the bubble B becomes finer and as a result, the floating speed Bv decreases. It will be sent downward. Therefore, if the air supply pipe 4 has an opening between the stirring blades 17a and 17b, the air will always pass through the lower stirring X 17a regardless of the bubble size, and the air bubbles will be crushed and become finer. It will dissolve well in the waste water.
このようにして、空気供給管４から吹き込まれた空気は
、撹拌翼１７ａ、 １７ｂで細かく粉砕されてパイプミ
キサ１３へと供給され、パイプミキサ１３内で旋回流と
なり、流体混合装置１１の底部から処理槽１の内底部に
周方向に向けて吐出される。そして、処理槽１の内部を
螺旋状の攪拌流Ｃとなって上方に移流される。□したが
って、排水液中における気泡の滞留時間も長くなり、各
パイプミキサ１３から吐出される混合流体と処理槽ｌ内
の排水液とかさらに良好に混合され、酸素溶解効率の高
い排水液が微生物担体２に担持された微生物に供給され
ることで、良好な排水処理か効率良く行われることにな
る。In this way, the air blown from the air supply pipe 4 is finely pulverized by the stirring blades 17a and 17b and supplied to the pipe mixer 13, where it becomes a swirling flow and flows from the bottom of the fluid mixing device 11 to the processing tank. It is discharged toward the inner bottom of 1 in the circumferential direction. Then, it becomes a spiral stirring flow C inside the processing tank 1 and is advected upward. □ Therefore, the residence time of air bubbles in the waste water becomes longer, and the mixed fluid discharged from each pipe mixer 13 and the waste water in the treatment tank l are even better mixed, and the waste water with high oxygen dissolution efficiency is used as the microbial carrier 2. By being supplied to the microorganisms carried on the water, good wastewater treatment can be carried out efficiently.
なお、第３図に示すように、空気供給管４の開口部が攪
拌翼２１の下方てパイプミキサ１３の排水液吸入部近傍
に設けられている場合、流速Ｗｖが空気供給管４から吹
き出された気泡Ｂの浮上速度ＢＶを上回るときには、気
泡Ｂか多少大きくてもそのままパイプミキサ１３に送り
込まれ、流速Ｗｖおよび気泡サイズにより気泡の状態か
一定化せず排水液中への空気の混合効率か、本実施例の
ものに比べて大幅に低くなる。Note that, as shown in FIG. 3, when the opening of the air supply pipe 4 is provided below the stirring blade 21 and near the waste water suction part of the pipe mixer 13, the flow velocity Wv is blown out from the air supply pipe 4. When the floating velocity of bubble B exceeds BV, the bubble B is sent as it is to the pipe mixer 13 even if it is somewhat large, and depending on the flow velocity Wv and bubble size, the state of the bubble does not become constant and the mixing efficiency of air into the drainage liquid is affected. It is significantly lower than that of the example.
第４図は本発明の他の実施例である流体混合装置の適用
例を示す排水処理装置の概略断面図である。第４図にお
いて、パイプミキサ３Ｉは、処理槽１の上部近くから底
部近くにかけて上下方向に配設された円筒部３２内下方
に設置された１本の管で構成され、その管内部を排水液
か通過することにより旋回流を発生させるガイド翼３３
をその内周面に設けている。このパイプミキサ３１の排
水液流入部近傍に設けられ、処理槽１内の排水液および
空気を混合して供給する混合供給手段３４は、モータ１
５、このモータ１５に連結された回転軸１６、この回転
軸１６に上中下３か所設けられた攪拌翼３５ａ、３５ｂ
、３５ｃからなる水中ミキサ３６と、空気を送るブロワ
３、このブロワ３に接続され中段の攪拌翼３５ｂおよび
下段の攪拌翼３５ｃの間の位置に開口し、排水液に混合
される流体である空気を供給する空気供給管３７からな
る空気供給装置３８とて構成されている。これにより、
上中段の２個の攪拌翼３５ａ。FIG. 4 is a schematic sectional view of a wastewater treatment device showing an application example of a fluid mixing device according to another embodiment of the present invention. In FIG. 4, the pipe mixer 3I is composed of a single pipe installed in the lower part of the cylindrical part 32, which is vertically arranged from near the top to near the bottom of the treatment tank 1. Guide vanes 33 that generate a swirling flow by passing through them.
is provided on its inner peripheral surface. A mixing supply means 34, which is provided near the drainage liquid inlet of the pipe mixer 31 and which mixes and supplies the drainage liquid and air in the treatment tank 1, is connected to the motor 1.
5. A rotating shaft 16 connected to the motor 15, and stirring blades 35a, 35b provided at three locations on the rotating shaft 16, top, middle, and bottom.
, 35c, a blower 3 that sends air, and an air that is a fluid that is connected to the blower 3 and opens at a position between the middle stirring blade 35b and the lower stirring blade 35c to be mixed with the drainage liquid. The air supply device 38 includes an air supply pipe 37 that supplies air. This results in
Two stirring blades 35a in the upper middle stage.
３５ｂて強い軸流を形成し、下段１個の攪拌翼３５ｃて
空気を粉砕して泡の微細化を図っている。さらに、パイ
プミキサ３１のガイド翼３３て旋回流を発生させて排水
液に空気をさらに攪拌混合する。35b to form a strong axial flow, and one stirring blade 35c in the lower stage crushes the air to make bubbles finer. Furthermore, the guide blades 33 of the pipe mixer 31 generate a swirling flow to further stir and mix air into the drainage liquid.
なお、空気供給管の開口部の上流に複数の攪拌翼を設け
てより強い軸流を形成し、空気供給管の下流側には空気
を粉砕して泡の微細化を図るための専用の攪拌翼、たと
えば細い櫛状のものでもよい。In addition, multiple stirring blades are installed upstream of the opening of the air supply pipe to form a stronger axial flow, and a dedicated stirring blade is installed downstream of the air supply pipe to crush the air and make the bubbles finer. Wings, for example thin comb-like ones, may also be used.
発明の効果
以上のように本発明によれば、液中に混合される流体の
供給手段の下流側に回転翼を設けているため、確実に供
給流体は回転翼で粉砕されて一定化し、槽内の流体混合
効率を向上させることかでき、特に、排水処理装置とし
て使用する場合は、排水液に対する酸素溶解効率を向上
させることができ排水処理を効率良く行うことかできる
ものである。Effects of the Invention As described above, according to the present invention, since the rotary blade is provided on the downstream side of the supply means for the fluid to be mixed in the liquid, the supplied fluid is reliably crushed by the rotary blade and becomes constant, and the fluid is supplied to the tank. In particular, when used as a wastewater treatment device, the oxygen dissolution efficiency in the wastewater can be improved and wastewater treatment can be carried out efficiently.
【図面の簡単な説明】
第１図は本発明の一実施例である流体混合装置の適用例
を示す排水処理装置の概略断面図、第２図は第１図のＤ
部の拡大図、第３図は第１図の実施例に対する比較例を
示す排水処理装置の概略断面図、第４図は本発明の他の
実施例である流体混合装置の適用例を示す排水処理装置
の概略断面図、第５図は従来の流体混合装置の適用例を
示す排水処理装置の概略断面図である。
３・・・ブロワ、４．３７・・・空気供給管、１１・・
・流体混合装置、１４．３４・・・混合供給手段、１５
・・・モータ、１６・・・回転軸、１７ａ、３５ｃ ・
・・攪拌翼、１８．３６・・・水中ミキサ、１９．３８
・・・空気供給装置。[Brief Description of the Drawings] Fig. 1 is a schematic sectional view of a wastewater treatment device showing an application example of a fluid mixing device according to an embodiment of the present invention, and Fig. 2 is a schematic sectional view of a wastewater treatment device shown in Fig. 1.
FIG. 3 is a schematic sectional view of a wastewater treatment device showing a comparative example to the embodiment shown in FIG. 1, and FIG. FIG. 5 is a schematic cross-sectional view of a wastewater treatment device showing an application example of a conventional fluid mixing device. 3...Blower, 4.37...Air supply pipe, 11...
・Fluid mixing device, 14.34... Mixing supply means, 15
... Motor, 16... Rotating shaft, 17a, 35c ・
... Stirring blade, 18.36 ... Submersible mixer, 19.38
...Air supply device.
Claims (1)
手段の下流側に、前記供給流体を粉砕するとともに、前
記液と流体の混合流を発生させる回転翼を設けたことを
特徴とする流体混合装置。1. A supply means for a fluid to be mixed in the liquid is provided, and a rotary blade is provided downstream of the supply means to crush the supply fluid and generate a mixed flow of the liquid and the fluid. Fluid mixing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2332070A JPH04197428A (en) | 1990-11-28 | 1990-11-28 | Fluid mixing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2332070A JPH04197428A (en) | 1990-11-28 | 1990-11-28 | Fluid mixing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04197428A true JPH04197428A (en) | 1992-07-17 |
Family
ID=18250812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2332070A Pending JPH04197428A (en) | 1990-11-28 | 1990-11-28 | Fluid mixing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04197428A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100319341B1 (en) * | 1999-09-27 | 2002-01-04 | 임동준 | Immobilized Bioreactor Increased in Dissolved Oxygen |
| JP2010022946A (en) * | 2008-07-22 | 2010-02-04 | Act:Kk | Sewage treatment device |
-
1990
- 1990-11-28 JP JP2332070A patent/JPH04197428A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100319341B1 (en) * | 1999-09-27 | 2002-01-04 | 임동준 | Immobilized Bioreactor Increased in Dissolved Oxygen |
| JP2010022946A (en) * | 2008-07-22 | 2010-02-04 | Act:Kk | Sewage treatment device |
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