JPS6218876Y2 - - Google Patents
Info
- Publication number
- JPS6218876Y2 JPS6218876Y2 JP1981081611U JP8161181U JPS6218876Y2 JP S6218876 Y2 JPS6218876 Y2 JP S6218876Y2 JP 1981081611 U JP1981081611 U JP 1981081611U JP 8161181 U JP8161181 U JP 8161181U JP S6218876 Y2 JPS6218876 Y2 JP S6218876Y2
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- polymerization reaction
- fluid
- reaction tank
- tube
- 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
- 238000006116 polymerization reaction Methods 0.000 claims description 26
- 239000012530 fluid Substances 0.000 claims description 22
- 238000004140 cleaning Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 4
- 239000000356 contaminant Substances 0.000 description 6
- 229920000642 polymer Polymers 0.000 description 6
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 4
- 239000005977 Ethylene Substances 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- -1 comonomer Substances 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Cleaning In General (AREA)
- Details Of Heat-Exchange And Heat-Transfer (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
【考案の詳細な説明】
本考案は特別構造を有する熱交換器に関する。
さらに詳しくは、特にエチレンの重合、エチレン
と他のモノマーとの共重合反応に用いられる重合
反応槽のオーバーヘツド配管に連接して設置さ
れ、オーバーヘツド配管より移送されてくる流体
から重合熱を除去する熱交換器に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heat exchanger with a special structure.
More specifically, it is installed in connection with the overhead piping of a polymerization reaction tank used especially for ethylene polymerization and copolymerization reactions of ethylene and other monomers, and removes polymerization heat from the fluid transferred from the overhead piping. This relates to a heat exchanger.
従来エチレン等の重合反応を行う場合に利用さ
れる重合反応槽は、その上部に一端を熱交換器に
接続するオーバーヘツド配管を設けている。この
オーバーヘツド配管は重合反応槽にて発生した反
応ガスの如き高温流体を熱交換器へ移送する目的
で設置されるものである。ところがこのオーバー
ヘツド配管には常時目的の高温流体だけが移送さ
れてくるわけではなく、たとえば未反応ガス、ポ
リマー、触媒等が同伴されてくることもある。こ
こでポリマーが同伴される場合としては重合反応
槽で生成されたものがオーバーヘツド配管に流入
するケースと、重合反応槽中の原料が未反応のま
まオーバーヘツド配管に流入し配管内で気相重合
反応が起きてポリマーが生成されるケースが考え
られる。 Conventionally, a polymerization reaction tank used for carrying out a polymerization reaction of ethylene, etc. is provided with overhead piping at its upper part, one end of which is connected to a heat exchanger. This overhead piping is installed for the purpose of transferring high temperature fluid such as reaction gas generated in the polymerization reaction tank to the heat exchanger. However, the overhead piping does not always carry only the desired high-temperature fluid; for example, unreacted gas, polymer, catalyst, etc. may also be carried along with it. There are cases in which polymers are entrained in the polymerization reaction tank, such as those produced in the polymerization reaction tank flowing into the overhead piping, and cases in which raw materials in the polymerization reaction tank flow unreacted into the overhead piping and enter the gas phase within the piping. A case can be considered in which a polymerization reaction occurs and a polymer is produced.
このようにガス流体、ポリマー、触媒等が熱交
換器中へ移送されてくると、熱交換器のチユーブ
シート面およびチユーブ内に夾雑物が付着して各
部に目詰りを起こして高温流体の流れを阻害し、
そのため重合反応から生じた重合熱の除去が不充
分となり、重合反応槽の安定的連続運転も不可能
となる欠点があつた。 When gas fluids, polymers, catalysts, etc. are transferred into the heat exchanger in this way, contaminants adhere to the tube seat surfaces and inside the tubes of the heat exchanger, causing clogging in various parts and hindering the flow of high-temperature fluid. inhibits
As a result, the removal of polymerization heat generated from the polymerization reaction was insufficient, and stable continuous operation of the polymerization reactor was also impossible.
本考案はチユーブシート面およびチユーブ内に
夾雑物が付着するのを防止して上記の欠点を解消
した熱交換器を提供せんとするものである。 The present invention aims to provide a heat exchanger which eliminates the above-mentioned drawbacks by preventing contaminants from adhering to the tube sheet surface and inside the tubes.
つぎに本考案を図面の実施例について説明する
と、本考案は重合反応槽１のオーバーヘツド配管
２先端を熱交換器３の流体導入口４に連接する装
置において、熱交換器３の流体導入口４近傍に流
体がチユーブシート５およびチユーブ６を直撃す
るのを防止する邪摩板７を取付けたことを特徴と
する熱交換器である。 Next, the present invention will be described with reference to the embodiments shown in the drawings.The present invention provides a system for connecting the tip of an overhead pipe 2 of a polymerization reaction tank 1 to a fluid inlet 4 of a heat exchanger 3. This heat exchanger is characterized in that a friction plate 7 is attached near the tube sheet 5 and the tube 6 to prevent the fluid from directly hitting the tube sheet 5 and the tube 6.
また図中８は邪摩板の流体当接面に植設した金
属製細棒体、９は洗浄用溶剤配管、１０はこの配
管先端に取付けたノズル、Ａは洗浄用溶剤配管と
ノズルより構成される洗浄装置、１１は熱交換器
の仕切板、１２は原料供給パイプである。 In addition, in the figure, 8 is a thin metal rod installed on the fluid contact surface of the jam plate, 9 is a cleaning solvent pipe, 10 is a nozzle attached to the tip of this pipe, and A is a cleaning solvent pipe and nozzle. 11 is a partition plate of a heat exchanger, and 12 is a raw material supply pipe.
ついで本考案の作用を説明すると、まず原料供
給パイプ１２よりエチレン、コモノマー、水素等
の原料を重合反応槽１内に投入し、重合反応槽に
おいて重合反応を開始させる。この場合重合反応
槽１の上部に取付けたオーバーヘツド配管２を経
由して高温流体が熱交換器３内に流入し、チユー
ブシート５およびチユーブ６の各面でチユーブ６
の外側を流れる冷却用流体と間接接触して熱の交
換が行われ、これにより高温流体の温度が下げら
れ重合熱の除去が図られる。 Next, the operation of the present invention will be described. First, raw materials such as ethylene, comonomer, hydrogen, etc. are introduced into the polymerization reaction tank 1 through the raw material supply pipe 12, and a polymerization reaction is started in the polymerization reaction tank. In this case, the high-temperature fluid flows into the heat exchanger 3 via the overhead piping 2 installed at the top of the polymerization reaction tank 1, and the tube 6
Heat is exchanged through indirect contact with the cooling fluid flowing outside the fluid, thereby lowering the temperature of the hot fluid and removing the heat of polymerization.
ここで重合反応槽１内またはオーバーヘツド配
管２内で生成されたポリマー、あるいは重合反応
槽からそのまま移送されてきた未反応ガス、触媒
等の流体が熱交換器３内に移送されてくるとき
は、本考案では熱交換器３内の流体導入口４近傍
に取付けた邪摩板７の存在により高温流体がチユ
ーブシート５面およびチユーブ６内を直撃するの
を防止できる。そのためにオーバーヘツド配管に
同伴されてきたポリマー、触媒等の夾雑物が熱交
換器のチユーブシート５面およびチユーブ６内に
付着する量も大巾に減少することとなる。 Here, when the polymer produced in the polymerization reaction tank 1 or the overhead piping 2, or the unreacted gas, catalyst, or other fluids transferred directly from the polymerization reaction tank, are transferred into the heat exchanger 3. In the present invention, the presence of the interference plate 7 attached near the fluid inlet 4 in the heat exchanger 3 can prevent high-temperature fluid from directly hitting the surface of the tube sheet 5 and the inside of the tube 6. Therefore, the amount of foreign substances such as polymers and catalysts that have been entrained in the overhead piping and adheres to the surface of the tube sheet 5 and inside the tube 6 of the heat exchanger is also greatly reduced.
また流体中に含まれている夾雑物を物理的に捕
捉する針金状の金属製細棒体８を邪摩板７の流体
当接面に多数植設したために、金属製細棒体８位
置で夾雑物の排除がなされるので熱交換器３内の
チユーブシート面およびチユーブ内に夾雑物が付
着する惧れは著しく減少する。なお邪摩板は定期
的に清掃して捕捉した夾雑物を取除いておくと、
長期間にわたつて夾雑物の除去効果を期待するこ
とができる。 In addition, since a large number of wire-like thin metal rods 8 that physically capture contaminants contained in the fluid are implanted on the fluid contact surface of the interference plate 7, the thin metal rods 8 are Since the contaminants are removed, the risk of contaminants adhering to the tube sheet surface and inside the tubes in the heat exchanger 3 is significantly reduced. In addition, if you clean the jama board regularly to remove trapped foreign matter,
The effect of removing impurities can be expected over a long period of time.
さらに熱交換器を長時間運転することによりチ
ユーブシート面やチユーブ内に夾雑物が自然付着
することもあるが、この場合には熱交換器内に予
め配設する洗浄装置Ａのノズル１０よりヘキサン
等の溶剤を噴射し、チユーブシート面やチユーブ
内に付着した夾雑物の洗浄をすることも可能であ
る。 Furthermore, if the heat exchanger is operated for a long time, foreign matter may naturally adhere to the tube sheet surface or inside the tube, but in this case, the hexane It is also possible to spray a solvent such as the like to clean the foreign matter adhering to the tube sheet surface or inside the tube.
よつて本考案は熱交換器のチユーブシート面や
チユーブ内に夾雑物が付着するのを防止できるの
でチユーブシート面およびチユーブ内の目詰りが
起らない。このためオーバーヘツド配管より移送
されてきた高温流体の流れが円滑となり、重合反
応槽で発生した重合熱を確実に除去することがで
き、重合反応槽の安定的連続運転が可能となる等
のすぐれた効果がある。 Therefore, the present invention can prevent contaminants from adhering to the tube sheet surface and inside the tube of the heat exchanger, so that clogging of the tube sheet surface and inside the tube does not occur. As a result, the flow of high-temperature fluid transferred from the overhead piping becomes smooth, the polymerization heat generated in the polymerization reaction tank can be reliably removed, and the stable continuous operation of the polymerization reaction tank becomes possible. It has a positive effect.
図は本考案の一実施例を示した縦断面図であ
る。
１……重合反応槽、２……オーバーヘツド配
管、３……熱交換器、４……流体導入口、５……
チユーブシート、６……チユーブ、７……邪摩
板。
The figure is a longitudinal sectional view showing an embodiment of the present invention. 1...Polymerization reaction tank, 2...Overhead piping, 3...Heat exchanger, 4...Fluid inlet, 5...
Tube seat, 6... Tube, 7... Jama board.
Claims (1)
器の流体導入口に連接する装置において、熱交換
器の流体導入口近傍に流体がチユーブシートおよ
びチユーブを直撃するのを防止する邪魔板を取付
け、該邪摩板の流体当接面に金属製細棒体を多数
植設し、熱交換器内に洗浄用溶剤配管とノズルか
らなる洗浄装置を配設したことを特徴とする熱交
換器。 In a device that connects the tip of the overhead piping of a polymerization reaction tank to the fluid inlet of a heat exchanger, a baffle plate is installed near the fluid inlet of the heat exchanger to prevent the fluid from directly hitting the tube sheet and tubes. A heat exchanger characterized in that a number of thin metal rods are implanted on the fluid contacting surface of a heat exchanger, and a cleaning device consisting of a cleaning solvent pipe and a nozzle is disposed inside the heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981081611U JPS6218876Y2 (en) | 1981-06-04 | 1981-06-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981081611U JPS6218876Y2 (en) | 1981-06-04 | 1981-06-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57195572U JPS57195572U (en) | 1982-12-11 |
| JPS6218876Y2 true JPS6218876Y2 (en) | 1987-05-14 |
Family
ID=29877114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1981081611U Expired JPS6218876Y2 (en) | 1981-06-04 | 1981-06-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6218876Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5150889U (en) * | 1974-10-16 | 1976-04-17 | ||
| JPS5314002B2 (en) * | 1973-02-05 | 1978-05-15 | ||
| JPS5333056B2 (en) * | 1973-08-06 | 1978-09-12 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5531363Y2 (en) * | 1976-07-20 | 1980-07-26 | ||
| JPS5333056U (en) * | 1976-08-28 | 1978-03-23 |
-
1981
- 1981-06-04 JP JP1981081611U patent/JPS6218876Y2/ja not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5314002B2 (en) * | 1973-02-05 | 1978-05-15 | ||
| JPS5333056B2 (en) * | 1973-08-06 | 1978-09-12 | ||
| JPS5150889U (en) * | 1974-10-16 | 1976-04-17 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57195572U (en) | 1982-12-11 |
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