JPH0326910Y2 - - Google Patents
Info
- Publication number
- JPH0326910Y2 JPH0326910Y2 JP5828482U JP5828482U JPH0326910Y2 JP H0326910 Y2 JPH0326910 Y2 JP H0326910Y2 JP 5828482 U JP5828482 U JP 5828482U JP 5828482 U JP5828482 U JP 5828482U JP H0326910 Y2 JPH0326910 Y2 JP H0326910Y2
- Authority
- JP
- Japan
- Prior art keywords
- water
- type
- spacer
- diameter
- shaft
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 238000006243 chemical reaction Methods 0.000 claims description 16
- 125000006850 spacer group Chemical group 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000006116 polymerization reaction Methods 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Physical Or Chemical Processes And Apparatus (AREA)
- Polymerisation Methods In General (AREA)
Description
【考案の詳細な説明】
本考案は反応缶内に設けられた水が循環可能な
形式のｂ型バツフルにおいて、その管状軸内にス
ペーサーを設けることにより水流路を狭くし水の
流速を大にしバツフルによる冷却効果を大ならし
め反応熱の除去を容易にし得るようにしたｂ型バ
ツフルに関するものである。[Detailed description of the invention] The present invention is a B-type baffle installed in a reaction vessel that allows water to circulate, by providing a spacer in the tubular shaft to narrow the water flow path and increase the water flow rate. This invention relates to a b-type buffle that increases the cooling effect of the buffle and facilitates the removal of reaction heat.
反応熱の大きな反応において、例えば塩化ビニ
ル系の重合反応ではこの反応熱を除去することが
生産性の向上を図る上で極めて重要である。従
来、反応缶では反応熱を除去するために外部にジ
ヤケツトを設け冷却水を循環することにより反応
熱の除去を図つている。又、反応缶には攬拌効果
を向上させるためにｂ型バツフルが設けられてい
ることがしばしばあるがこのｂ型バツフルにも水
を循環させ反応熱を反応管内から直接除去し、反
応熱の除去能力を増し、生産性の向上を図らうと
する試みもなされている。 In reactions with large reaction heat, for example, vinyl chloride polymerization reactions, it is extremely important to remove this reaction heat in order to improve productivity. Conventionally, reaction heat is removed by providing a jacket on the outside of a reaction vessel and circulating cooling water to remove the reaction heat. In addition, reaction vessels are often equipped with a b-type baffle to improve the stirring effect, and water is circulated through this b-type buffle to directly remove the reaction heat from inside the reaction tube. Attempts have also been made to increase removal capacity and improve productivity.
本考案はこのｂ型バツフルの形状・大きさを変
えることなくバツフル内を循環する水の流速を大
にしてバツフルの冷却壁の境膜係数を大とし、そ
の冷却能力のパラメーターである伝熱係数Ｕを大
ならしめ、効果的に反応熱を取り除くことを目的
とするものである。 The present invention increases the flow rate of water circulating inside the b-type buffle without changing the shape and size of the b-type buffle, increasing the film coefficient of the cooling wall of the b-type buffle, and increasing the heat transfer coefficient, which is a parameter of its cooling capacity. The purpose is to increase U and effectively remove the heat of reaction.
従来、反応缶に設けられていた水循環用ｂ型バ
ツフルの構造を第１図に示し、本考案のｂ型バツ
フルの構造を第２図に示す。 FIG. 1 shows the structure of a conventional b-type baffle for water circulation provided in a reaction vessel, and FIG. 2 shows the structure of the b-type buffle of the present invention.
第１図においてｂ型バツフルの管状軸１は外管
５を内管３の２重管となつてをり、内管３に冷却
水が流入し内管３の下部に設けられた細孔４から
水は中空管からなる翼部２と軸１の外管５に別れ
て流れ軸と翼部との上部結合部６で再び合一して
外管５の上部から流出循環され反応缶内の媒体か
ら反応熱を除去する。尚、図において矢印は水の
流れ方向を示している。第１図のｂ型バツフルに
おいて直接冷却に寄与するのは軸部の外管壁と翼
部の管壁であるが、ここを通過する水は細孔４か
ら二つに別れるため水速が小となり冷却効果が不
満足であつた。 In FIG. 1, the tubular shaft 1 of the b-type baffle has an outer tube 5 and an inner tube 3, which are double tubes. The water is separated into the wing section 2 consisting of a hollow tube and the outer tube 5 of the shaft 1, and is combined again at the upper joint section 6 of the flow shaft and the wing section, flowing out from the upper part of the outer tube 5 and being circulated inside the reaction vessel. heat of reaction is removed from the medium. Note that in the figure, arrows indicate the direction of water flow. In the b-type baffle shown in Figure 1, the outer tube wall of the shaft and the tube wall of the wing contribute to direct cooling, but the water passing through these is divided into two from the pore 4, so the water velocity is low. Therefore, the cooling effect was unsatisfactory.
本考案に関するｂ型バツフルの構造を第２図に
示す。第２図ではｂ型バツフルの管状軸１の２重
管は軸と翼部との結合部６の少し下部で仕切板７
により分断される。３より流入する水は結合部６
の下部に設けられれたスペーサー８によりスペー
サーと軸外管からなる間隙部を流れた後、中空管
からなる翼部２及び結合部６を経て外管５から流
出する。 The structure of the b-type baffle related to the present invention is shown in FIG. In Fig. 2, the double tube of the tubular shaft 1 of the b-type buttful is located slightly below the joint 6 between the shaft and the wing section with the partition plate 7.
divided by The water flowing in from 3 is connected to the joint 6
After flowing through the gap between the spacer and the off-axis tube through the spacer 8 provided at the lower part of the tube, it flows out from the outer tube 5 through the wing section 2 and the joint section 6, which are made of a hollow tube.
スペーサー８の径は管状軸径に対し1/2〜4/5で
あり、３から流入する水は間隙が狭くなるため速
度を増して流れる。例えば管状軸の径が125mmの
場合、スペーサーの径は62.5mm〜100mmでありこ
の間隙を流れる水の流速は1.5〜２ｍ／sec程度で
あることが望ましい。スペーサーの径をあまり大
にすると流体の圧力損失が増加し、又径が小にす
ぎると冷却効果が小となる。スペーサーの形状は
任意でよいが水の流速の関係で筒状であることが
好ましく、又軽量にするため内部が中空なものが
好ましい。 The diameter of the spacer 8 is 1/2 to 4/5 of the diameter of the tubular shaft, and the water flowing in from the spacer 3 flows at an increased speed because the gap becomes narrow. For example, when the diameter of the tubular shaft is 125 mm, the diameter of the spacer is 62.5 mm to 100 mm, and the flow rate of water flowing through this gap is preferably about 1.5 to 2 m/sec. If the diameter of the spacer is too large, the pressure loss of the fluid will increase, and if the diameter is too small, the cooling effect will be reduced. The shape of the spacer may be arbitrary, but it is preferably cylindrical in view of the water flow rate, and preferably hollow inside to reduce weight.
ｂ型バツフルの材質は好ましくは鉄製、ステン
レス製が好ましく用いられ、鉄が使用される場合
にはグラスライニングより熱伝導性の大きな銅メ
ツキ又はクロムメツキにすることが好ましい。
又、翼部の管状体も中心に翼部管状軸径の1/2〜
４／５の径をもつスペーサーを設けることによりこ
の部分の水の流速も大にすることができ冷却効果
を更に増大させることができる。 The material of the b-type baffle is preferably iron or stainless steel, and if iron is used, it is preferably copper plating or chrome plating, which has higher thermal conductivity than the glass lining.
In addition, the tubular body of the wing is also centered around 1/2 to 1/2 of the diameter of the wing tubular shaft.
By providing a spacer with a diameter of 4/5, the flow rate of water in this portion can be increased, and the cooling effect can be further increased.
実施例
軸部の長さＬ、翼部の長さl2、スペーサーの長
さをl1とした場合
Ｌ＝2700mm
l1＝2000mm
l2＝2300mm
のｂ型バツフル（材質ステンレス）を14M3重合
缶内に設置した。Example When the length of the shaft part is L, the length of the wing part is L2 , and the length of the spacer is L1 , L = 2700mm l1 = 2000mm l2 = 2300mm B-type buttful (stainless steel) is made of 14M triple polymerization. placed inside the can.
管状軸の径は114mm、スペーサーの径は60mmで
あつてその径は管状軸の径に対し１／1.9であつ
た。 The diameter of the tubular shaft was 114 mm, and the diameter of the spacer was 60 mm, which was 1/1.9 of the diameter of the tubular shaft.
重合缶内に58℃の温水を十分に満し、攬拌す
る。冷却水（温度２０℃）をｂ型バツフルの水入
口部より10M3／hrで流し、水出口部の水温を測
定し、常法によりｂ型バツフルの伝熱係数を次式
により計算した。伝熱係数は800Kcal／m2hr℃で
あつた。 Fill the polymerization tank with 58℃ warm water and stir. Cooling water (temperature 20° C.) was flowed from the water inlet of the b-type buffle at a rate of 10 M 3 /hr, the water temperature at the water outlet was measured, and the heat transfer coefficient of the b-type buffle was calculated using the following formula using a conventional method. The heat transfer coefficient was 800 Kcal/m 2 hr°C.
Ｕ＝CW（t2−t1）／Ａ・△ｔ
Ｕ；伝熱係数，△ｔ＝Ｔ−t1＋t2／２
t1；入口温度（20℃），t2；出口温度
Ｔ；重合缶内温度（58℃）
Ａ；バツフル伝熱面積，Ｃ；水の比重
Ｗ；水量
同様の方法でスペーサーを設置しないｂ型バツ
フルの伝熱係数を測定した所360Kcal／m2hr℃で
あり、流速を増加せしめた効果が顕著であつた。
尚、同一條件で水量のみを120m2／hrに変え伝熱
係数を測定した場合、伝熱係数は改造前
600Kcal／m2hr℃であり改造後は1600Kcal／m2hr
℃であつた。 U=CW( t2 - t1 )/A・△t U: Heat transfer coefficient, △t=T- t1 + t2 /2 t1 : Inlet temperature (20℃), t2 : Outlet temperature T: Polymerization Temperature inside the can (58°C) A: heat transfer area, C: specific gravity of water W: water volume The heat transfer coefficient of type b baffle without a spacer was measured using the same method, and it was 360 Kcal/m 2 hr°C. The effect of increasing the flow rate was significant.
In addition, when measuring the heat transfer coefficient by changing only the water flow to 120 m 2 /hr under the same conditions, the heat transfer coefficient is the same as before the modification.
600Kcal/m 2 hr℃ and 1600Kcal/m 2 hr after modification
It was warm at ℃.
第１図は従来のｂ型バツフル、第２図は本考案
のｂ型バツフルの概略図である。
１……管状軸、２……管状翼、３……内管、４
……細孔、５……外管、６……結合部、７……仕
切板、８……スペーサー。
FIG. 1 is a schematic diagram of a conventional b-type buffle, and FIG. 2 is a schematic diagram of a b-type buffle of the present invention. 1... Tubular shaft, 2... Tubular wing, 3... Inner tube, 4
... Pore, 5 ... Outer tube, 6 ... Joint part, 7 ... Partition plate, 8 ... Spacer.
Claims (1)
管状翼２からなるｂ型バツフルにおいて管状軸内
の管状軸と管状翼の上部結合部６の下部に軸径の
１／２〜4/5の径をもつスペーサー８を設け管状軸に
おける水流速を大とし、管状翼２を経て軸上部の
水出口より水を流出せしめることを特徴とする冷
却効果の大なｂ型バツフル。 In a b-type baffle consisting of a tubular shaft 1 and tubular blades 2 which are provided in a reaction vessel and are capable of water circulation, 1/2 to 4/5 of the shaft diameter is attached to the lower part of the upper joint 6 of the tubular shaft and the tubular blades in the tubular shaft. A b-type baffle with a large cooling effect, characterized in that a spacer 8 having a diameter of
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5828482U JPS58160241U (en) | 1982-04-21 | 1982-04-21 | B type Batsuful |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5828482U JPS58160241U (en) | 1982-04-21 | 1982-04-21 | B type Batsuful |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58160241U JPS58160241U (en) | 1983-10-25 |
| JPH0326910Y2 true JPH0326910Y2 (en) | 1991-06-11 |
Family
ID=30068681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5828482U Granted JPS58160241U (en) | 1982-04-21 | 1982-04-21 | B type Batsuful |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58160241U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11288602B2 (en) | 2019-09-18 | 2022-03-29 | Hartford Steam Boiler Inspection And Insurance Company | Computer-based systems, computing components and computing objects configured to implement dynamic outlier bias reduction in machine learning models |
| US11328177B2 (en) | 2019-09-18 | 2022-05-10 | Hartford Steam Boiler Inspection And Insurance Company | Computer-based systems, computing components and computing objects configured to implement dynamic outlier bias reduction in machine learning models |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5220544B2 (en) * | 2008-10-08 | 2013-06-26 | 池袋琺瑯工業株式会社 | Glass-lined reaction can |
-
1982
- 1982-04-21 JP JP5828482U patent/JPS58160241U/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11288602B2 (en) | 2019-09-18 | 2022-03-29 | Hartford Steam Boiler Inspection And Insurance Company | Computer-based systems, computing components and computing objects configured to implement dynamic outlier bias reduction in machine learning models |
| US11328177B2 (en) | 2019-09-18 | 2022-05-10 | Hartford Steam Boiler Inspection And Insurance Company | Computer-based systems, computing components and computing objects configured to implement dynamic outlier bias reduction in machine learning models |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58160241U (en) | 1983-10-25 |
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