JPH062744Y2 - Liquid column nozzle device - Google Patents
Liquid column nozzle deviceInfo
- Publication number
- JPH062744Y2 JPH062744Y2 JP8059288U JP8059288U JPH062744Y2 JP H062744 Y2 JPH062744 Y2 JP H062744Y2 JP 8059288 U JP8059288 U JP 8059288U JP 8059288 U JP8059288 U JP 8059288U JP H062744 Y2 JPH062744 Y2 JP H062744Y2
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- liquid column
- orifice
- nozzle
- nozzle device
- 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.)
- Expired - Lifetime
Links
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、ガス／液接触式の反応塔、例えば排ガス脱硫
塔などの石こうスラリ噴出ノズル装置等の液柱ノズル装
置に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a liquid column nozzle device such as a gas / liquid contact type reaction tower, for example, a gypsum slurry jetting nozzle device such as an exhaust gas desulfurization tower.
従来排ガス脱硫塔などでは、第２図に示すように塔下部
に設けたヘッダパイプ１に取付けられた多数のノズル２
から石こうスラリを上方に向け噴射して液柱を形成し、
逆に上方から下方に流れるボイラ排ガスをこの液柱群中
を流通させてガス／液接触を行なわせ、ガス中のSO2ガ
スやダストを除去している。In a conventional exhaust gas desulfurization tower or the like, as shown in FIG. 2, a large number of nozzles 2 mounted on a header pipe 1 provided at the bottom of the tower.
Gypsum slurry is sprayed upward to form a liquid column,
On the contrary, the boiler exhaust gas flowing from the upper part to the lower part is circulated in this liquid column group to make a gas / liquid contact, thereby removing SO 2 gas and dust in the gas.
前記の従来の技術では、液柱を高く上げるとかポンプ動
力を低減するとかの要求から、第３図に示すように、ノ
ズル２入口部のヘッダパイプ１の穴部は丸味４を設ける
ように形成されている。In the above-mentioned conventional technique, the hole of the header pipe 1 at the inlet of the nozzle 2 is formed to have a roundness 4 as shown in FIG. 3 in order to raise the liquid column to a high level or to reduce the pump power. Has been done.
これによって液柱は高く上昇し、且つ、ポンプ動力も低
減されるが、反面噴上げられた液柱は第４図(A)に示す
ように細い完全な柱状６′となり、これが上方で分散し
て流環となって流下するために、液自体の分散が悪くな
る。このために、排ガスの脱硫，除塵効率を上げるため
にはノズルを密に多数配置せざるを得ず、コスト高等の
不具合を生じている。As a result, the liquid column rises high and the pump power is also reduced. On the other hand, the jetted liquid column becomes a thin and perfect column 6'as shown in Fig. 4 (A), which is dispersed upward. As it flows down as a flow stream, the dispersion of the liquid itself deteriorates. For this reason, in order to improve the desulfurization and dust removal efficiency of the exhaust gas, a large number of nozzles have to be densely arranged, which causes problems such as high cost.
本考案は、この種の液柱ノズル装置に於いて、高い液分
散効果を得られるようにしたものである。The present invention is intended to obtain a high liquid dispersion effect in this type of liquid column nozzle device.
本考案は、下方から上方に向って液体を柱状に噴出する
液柱ノズル装置において、上方に向って液体の噴出する
ノズルの下端の入口部にオリフィスを設け、同オリフィ
スを通して所定量以上の流量の液体を流すようにした。The present invention relates to a liquid column nozzle device that ejects liquid in a column shape from below to above, and an orifice is provided at the inlet of the lower end of the nozzle from which liquid is ejected upward, and a flow rate of a predetermined amount or more is provided through the orifice. The liquid was made to flow.
ノズル下端の入口部に設けたオリフィスによって、同オ
リフィスを通過する液体の圧力は減少するが、或る流量
以上の液体を流すことによって、液体中に沸騰（キャビ
テーション）が起り気泡が発生する。この気泡の作用で
ノズルから噴出する液柱は、上方に行くに従って拡大し
て分散する。これによって液体と周囲の気体との気液接
触の効率が増大する。Although the pressure of the liquid passing through the orifice is reduced by the orifice provided at the inlet at the lower end of the nozzle, when a liquid having a certain flow rate or more is flowed, boiling (cavitation) occurs in the liquid and bubbles are generated. The liquid column ejected from the nozzle by the action of the bubbles is expanded and dispersed as it goes upward. This increases the efficiency of gas-liquid contact between the liquid and the surrounding gas.
第１図に本考案の一実施例を示す。ヘッダパイプ１の穴
部の位置にこれと同じ形状の断面をもち上方に延びる複
数のノズル２が取付けられ同穴部がノズル下端の入口部
５を形成する。同入口部５にはオリフィス３が取付けら
れている。このオリフィスの絞り比（d0／d1）は0.3〜
0.9程度とする。FIG. 1 shows an embodiment of the present invention. A plurality of nozzles 2 having a cross section of the same shape and extending upward are attached to the positions of the holes of the header pipe 1, and the holes form an inlet 5 at the lower end of the nozzle. An orifice 3 is attached to the inlet portion 5. The throttle ratio (d 0 / d 1 ) of this orifice is 0.3-
Set to about 0.9.
本実施例では、各ノズルからの液の噴出量は第５図に示
すように絞り比に応じ或る量以上とする（図中の曲線は
沸騰限界を示しその上側の範囲を作動範囲とする）。In this embodiment, the amount of liquid ejected from each nozzle is set to a certain amount or more according to the throttle ratio as shown in FIG. 5 (the curve in the figure indicates the boiling limit and the upper range thereof is the operating range). ).
本実施例では、上記のようにオリフィスの絞り比に応じ
た所定量以上の液体がオリフィス３を通って流れノズル
２より上方に液柱をなして噴出する。液体は同オリフィ
ス３を通過するときに沸騰（キャビテーション）を起し
気泡が発生する。これによってノズル２から噴出する液
柱６（第４図Ｂ参照）は水平方向に拡がり、液体は第４
図矢印に示すように上方に向って分散して流れる。これ
によって液体は周囲の気体と広い面積で接触し、気液接
触の効果が増大する。In the present embodiment, as described above, a predetermined amount or more of liquid corresponding to the throttle ratio of the orifice flows through the orifice 3 and is ejected as a liquid column above the nozzle 2. When the liquid passes through the orifice 3, it boils (cavitation) and bubbles are generated. As a result, the liquid column 6 (see FIG. 4B) ejected from the nozzle 2 spreads in the horizontal direction, and the liquid flows in the fourth direction.
As shown by the arrow in the figure, the flow is dispersed upward. As a result, the liquid comes into contact with the surrounding gas in a large area, and the effect of gas-liquid contact is increased.
本考案は、ノズル下端の入口部にオリフィスを設け或る
量以上の液体をこのオリフィスを通過させて流すことに
よって、キャビテーションが起こり噴出する液柱の分散
効果が高まり、気液接触効率を上げることができる。According to the present invention, an orifice is provided at the inlet of the lower end of a nozzle, and a certain amount or more of liquid is caused to flow through this orifice to enhance the dispersion effect of the cavitation-caused liquid column and to increase the gas-liquid contact efficiency. You can
第１図は本考案の一実施例の説明図、第２図は従来の液
柱ノズル装置の概略図、第３図は第２図のIII−III断面
図、第４図(A)は従来の液柱ノズル装置からの液柱噴出
状況の説明図、第４図(B)は上記実施例における液柱噴
出状況の説明図、第５図は上記実施例におけるオリフィ
ス絞り比と噴出流量の関係図である。 １…ヘッダパイプ、２…ノズル、３…オリフィス、５…
ノズル入口部、６…液柱FIG. 1 is an explanatory view of an embodiment of the present invention, FIG. 2 is a schematic view of a conventional liquid column nozzle device, FIG. 3 is a sectional view taken along the line III-III of FIG. 2, and FIG. Of the liquid column jetting from the liquid column nozzle device of FIG. 4, FIG. 4 (B) is an explanatory view of the liquid column jetting state in the above embodiment, and FIG. 5 is a relationship between the orifice throttle ratio and the jet flow rate in the above embodiment. It is a figure. 1 ... Header pipe, 2 ... Nozzle, 3 ... Orifice, 5 ...
Nozzle inlet, 6 ... Liquid column
フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ０５Ｂ 1/00 Ｚ (72)考案者 荒井 徳磨 東京都千代田区丸の内２丁目５番１号 三 菱重工業株式会社内 (56)参考文献 実開 昭59−53828（ＪＰ，Ｕ)Continuation of front page (51) Int.Cl. 5 Identification number Internal reference number FI Technical indication B05B 1/00 Z (72) Inventor Arai Tokuma, 2-5-1, Marunouchi, Chiyoda-ku, Tokyo Sanryo Heavy Industries Co., Ltd. In-house (56) Bibliography Sho 59-53828 (JP, U)
Claims (1)
の入口部にオリフィスを設け、同オリフィスを通して所
定量以上の流量の液体を流すようにしたことを特徴とす
る液柱ノズル装置。1. A liquid column nozzle device characterized in that an orifice is provided at a lower end of a nozzle for ejecting liquid upward, and a liquid having a flow rate of a predetermined amount or more is flowed through the orifice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8059288U JPH062744Y2 (en) | 1988-06-20 | 1988-06-20 | Liquid column nozzle device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8059288U JPH062744Y2 (en) | 1988-06-20 | 1988-06-20 | Liquid column nozzle device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH024625U JPH024625U (en) | 1990-01-12 |
| JPH062744Y2 true JPH062744Y2 (en) | 1994-01-26 |
Family
ID=31305414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8059288U Expired - Lifetime JPH062744Y2 (en) | 1988-06-20 | 1988-06-20 | Liquid column nozzle device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH062744Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3316322B2 (en) * | 1994-11-17 | 2002-08-19 | 三菱重工業株式会社 | Gas-liquid contact device |
| US20050113794A1 (en) * | 2003-09-22 | 2005-05-26 | Rucinski Paul J. | Novel wound irrigation device and method |
-
1988
- 1988-06-20 JP JP8059288U patent/JPH062744Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH024625U (en) | 1990-01-12 |
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