JPH0772276B2 - A sleeve for preventing dust blockage used in the piping of coal gasifiers - Google Patents
A sleeve for preventing dust blockage used in the piping of coal gasifiersInfo
- Publication number
- JPH0772276B2 JPH0772276B2 JP15899986A JP15899986A JPH0772276B2 JP H0772276 B2 JPH0772276 B2 JP H0772276B2 JP 15899986 A JP15899986 A JP 15899986A JP 15899986 A JP15899986 A JP 15899986A JP H0772276 B2 JPH0772276 B2 JP H0772276B2
- Authority
- JP
- Japan
- Prior art keywords
- sleeve
- generated gas
- piping
- coolant
- 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.)
- Expired - Lifetime
Links
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は石炭類ガス化炉より発生する高温ガスの移送用
配管装置に関し、特に熱回収される前の高温ガスを熱回
収器等へ送るための配管装置に利用される。Description: TECHNICAL FIELD The present invention relates to a piping device for transferring high temperature gas generated from a coal gasification furnace, and particularly to sending high temperature gas before heat recovery to a heat recovery device or the like. It is used for piping equipment.
石炭類のガス化装置より発生する発生ガスは高温であり
タール成分及び粉塵を含むため、これを移送する配管装
置において、冷却によりタール成分の析出や粉塵の堆積
による閉塞の問題がある。そのため配管の接続部に多数
個の孔を有するスリーブを設け、装置停止時に断熱材中
に凝縮したスチームの吹出しによる局部的な冷却のため
タール成分が析出するのを防止する手段が提案されてい
る（実願昭58−102815）。しかしながら上記手段による
ものは粉塵の堆積を防止する効果がない。また配管の接
続部以外の部分に対する閉塞防止の効果もない。Since the gas generated from the coal gasifier is high in temperature and contains tar components and dust, there is a problem of clogging due to precipitation of tar components and accumulation of dust in the piping device that transfers the gas. Therefore, it is proposed to provide a sleeve having a large number of holes at the connecting portion of the pipe and prevent tar components from precipitating due to local cooling by blowing out steam condensed in the heat insulating material when the apparatus is stopped. (Actual application Sho 58-102815). However, the above means does not have the effect of preventing the accumulation of dust. In addition, there is no effect of preventing blockages other than the connection portion of the pipe.
配管を冷却するためのN2,スチーム等の冷却材を配管の
接続部において発生ガス流に旋回流を与えるように、半
径方向に対して一定角度を有するノズルから噴出させ
る。A coolant such as N 2 or steam for cooling the pipe is jetted from a nozzle having a constant angle with respect to the radial direction so as to give a swirl flow to the generated gas flow at the connecting portion of the pipe.
〔作 用〕 配管の接続部において冷却材が周方向の速度成分をもっ
て発生ガス流中に入る。従って発生ガスの流れは管壁に
近い所で大きい周方向成分を有するようになる。このよ
うな旋回流があるため配管の接続部に発生ガス流の局部
的な温度低下によるタール成分の析出が発生することが
ない。また旋回流は配管接続部より下流に及ぶため管壁
の周方向の流れにより粉塵が中央部へ集められて、管壁
へ粉塵が堆積しない。また上記旋回流は配管の接続部で
次々に加えられて全配管中で保持されるのでその効果は
高温の発生ガス移送ラインの全長に及ぼすことができ
る。[Operation] The coolant enters the generated gas flow with a circumferential velocity component at the pipe connection. Therefore, the generated gas flow has a large circumferential component near the tube wall. Due to such a swirling flow, precipitation of tar component due to local temperature drop of the generated gas flow does not occur at the connecting portion of the pipe. Further, since the swirl flow extends downstream from the pipe connecting portion, dust is collected in the central portion by the flow in the circumferential direction of the pipe wall, and the dust is not accumulated on the pipe wall. Further, since the swirling flow is added one after another at the connecting portion of the pipes and held in all the pipes, the effect can be exerted on the entire length of the high temperature generated gas transfer line.
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。本発明が利用される石炭類ガス化装置は第２図に
示すごとく、ガス化炉中に微粉炭、水蒸気、酸素ガス等
が吹込まれ、これらは流動状態で反応し、高温の発生ガ
スとなる。発生ガスはサイクロン集塵機で粒子径の大き
い灰が分離され、分離された灰はガス化炉へ戻される。
発生ガスはサイクロン集塵機から更に熱回収器へ送られ
ここで顕熱が回収される。上記の装置において、ガス化
炉、サイクロン集塵機間またはサイクロン集塵機、熱回
収器間のごとき高温ガス移送ラインに本発明による装置
が利用される。第１図に示すごとく、実施例の配管装置
は外筒１、内筒２、キャスタブル３の三重構造となって
おり、高温の発生ガスは内筒２内を矢印方向に送られ
る。キャスタブル３は外筒１に固着されているキャスタ
ブルアンカー４により支持固定されており、内筒２とキ
ャスタブル３の間には冷却材の通過する間隙５が設けら
れている。An embodiment of the present invention will be described below with reference to the drawings. As shown in Fig. 2, the coal gasifier for use in the present invention blows pulverized coal, water vapor, oxygen gas, etc. into the gasification furnace, and these react in a fluidized state to generate high-temperature gas. . The generated gas is separated into ash with a large particle size by a cyclone dust collector, and the separated ash is returned to the gasification furnace.
The generated gas is further sent from the cyclone dust collector to the heat recovery device, where sensible heat is recovered. In the above device, the device according to the present invention is used in a high temperature gas transfer line such as between a gasification furnace and a cyclone dust collector or between a cyclone dust collector and a heat recovery device. As shown in FIG. 1, the piping device of the embodiment has a triple structure of an outer cylinder 1, an inner cylinder 2, and castables 3, and a high-temperature generated gas is sent in the inner cylinder 2 in the arrow direction. The castable 3 is supported and fixed by a castable anchor 4 fixed to the outer cylinder 1, and a gap 5 through which a coolant passes is provided between the inner cylinder 2 and the castable 3.
内筒２は上部が外筒１に溶接固着された上部シュラウド
プレート６に溶接されており、下部は下部シュラウドプ
レート７に摺動自在に支持されている。キャスタブル３
は外筒１、内筒２、上部シュラウドプレート６、下部シ
ュラウドプレート７に覆れて、高温高圧の発生ガスによ
る摩耗に対して保護される。外筒１は発生ガスの高い圧
力による大きい応力が加わるが、キャスタブル３の断熱
作用により低温に保たれクリープ現象が生じないように
なっている。このような配管装置15は外筒１のフランジ
部でボルト８により次々に締着され発生ガス移送路を形
成する。N2ガス、スチーム等の冷却材は発生ガスの圧力
より高く昇圧されており、制御弁９を通り間隙５に送り
込まれる。間隙５を通過した冷却材は接続部の空隙に充
填された石綿12の間を通り、スリーブ13に設けられたノ
ズル14より高速流となって発生ガス中へ噴出される。間
隙５を通る冷却材の温度は温度センサー10により測定さ
れ、この温度が所定の値になるようにコントローラ11お
よび制御弁９で冷却材の流量が制御される。上記スリー
ブ13は第３図及び第４図に示すごとく、半径方向に対し
て一定角度αを有する複数のノズル14が設けられてお
り、冷却材はこのノズルから発生ガス流中に噴射され
て、発生ガス流に旋回流を与える。またスリーブ13は配
管の接続部毎に設けられているので配管の全長にわた
り、上記旋回流を保持することができる。本実施例では
冷却材は内筒２の壁面を流れ、主として内筒を冷却する
効果を有するが、冷却材が主として外筒を冷却するよう
に構成されている場合にも本発明は利用できる。また本
発明に使用される石炭類としては、いわゆる石炭にかぎ
らず石炭系及び石油系を包含する広い範囲のガス化材料
が利用できる。このようなガス化材料の例としては、た
とえば亜炭、褐炭、亜歴青炭、歴青炭、無煙炭などのご
とき石炭類、または石炭コークス、石油コークスなどの
コークス類を例示することができる。The upper part of the inner cylinder 2 is welded to the upper shroud plate 6 which is welded and fixed to the outer cylinder 1, and the lower part is slidably supported by the lower shroud plate 7. Castable 3
Is covered with the outer cylinder 1, the inner cylinder 2, the upper shroud plate 6, and the lower shroud plate 7, and is protected against wear due to high-temperature and high-pressure generated gas. Large stress is applied to the outer cylinder 1 due to the high pressure of the generated gas, but the heat insulation of the castable 3 keeps the temperature low and prevents the creep phenomenon from occurring. Such a piping device 15 is tightened one after another by bolts 8 at the flange portion of the outer cylinder 1 to form a generated gas transfer path. The coolant such as N 2 gas and steam is boosted to a pressure higher than the pressure of the generated gas and is fed into the gap 5 through the control valve 9. The coolant that has passed through the gap 5 passes between the asbestos 12 filled in the gap of the connection portion, and is jetted into the generated gas as a high-speed flow from the nozzle 14 provided in the sleeve 13. The temperature of the coolant passing through the gap 5 is measured by the temperature sensor 10, and the flow rate of the coolant is controlled by the controller 11 and the control valve 9 so that this temperature becomes a predetermined value. As shown in FIGS. 3 and 4, the sleeve 13 is provided with a plurality of nozzles 14 having a constant angle α with respect to the radial direction, and the coolant is injected from the nozzles into the generated gas flow, A swirl flow is applied to the generated gas flow. Further, since the sleeve 13 is provided for each connecting portion of the pipe, the swirl flow can be maintained over the entire length of the pipe. In the present embodiment, the coolant flows on the wall surface of the inner cylinder 2 and has an effect of mainly cooling the inner cylinder, but the present invention can also be used when the coolant is configured to mainly cool the outer cylinder. Further, as the coals used in the present invention, not only so-called coal but a wide range of gasification materials including coal-based and petroleum-based can be used. Examples of such a gasification material include coals such as lignite, lignite, subbituminous coal, bituminous coal, anthracite, and cokes such as coal coke and petroleum coke.
配管の接続部に設けられたスリーブのノズルから噴出す
る冷却材による旋回流のために、配管に灰分やタールの
粉塵が堆積しにくく、従来必要であった配管の閉塞のた
めの頻繁な取替えが不要となり保守費用が安くなる。Due to the swirling flow due to the coolant ejected from the nozzle of the sleeve provided at the connection part of the pipe, ash and tar dust are less likely to accumulate on the pipe, and frequent replacement due to the blockage of the pipe, which was necessary in the past, is not possible. It becomes unnecessary and the maintenance cost is low.
第１図は本発明の一実施例である配管装置の断面図、第
２図は本発明が利用される石炭類ガス化装置の工程図、
第３図は本発明の一実施例であるスリーブの断面図、第
４図は同平面図である。 １……外筒、２……内筒、３……キャスタブル、４……
キャスタブルアンカー、５……間隙、６……上部シュラ
ウドプレート、７……下部シュラウドプレート、８……
ボルト、９……制御弁、10……温度センサー、11……コ
ントローラ、12……石綿、13……スリーブ、14……ノズ
ル、15……配管装置。FIG. 1 is a cross-sectional view of a piping device that is an embodiment of the present invention, and FIG. 2 is a process diagram of a coal gasification device in which the present invention is used,
FIG. 3 is a sectional view of a sleeve which is an embodiment of the present invention, and FIG. 4 is a plan view of the same. 1 ... Outer cylinder, 2 ... Inner cylinder, 3 ... Castable, 4 ...
Castable anchor, 5 ... Gap, 6 ... Upper shroud plate, 7 ... Lower shroud plate, 8 ...
Bolt, 9 ... Control valve, 10 ... Temperature sensor, 11 ... Controller, 12 ... Asbestos, 13 ... Sleeve, 14 ... Nozzle, 15 ... Piping device.
Claims (1)
スを移送する内筒、キャスタブル、外筒の三重構造を有
する配管装置における前記内筒と前記外筒の間を通して
前記発生ガス中に冷却材を注入するように構成された配
管に使用される前記冷却材を前記発生ガス中に噴出する
半径方向に対し一定角度を有する複数のノズルが穿孔さ
れている粉塵閉塞防止用スリーブ。1. A pipe apparatus having a triple structure of an inner cylinder, a castable and an outer cylinder, for transferring a high-temperature generated gas generated from a coal gasification furnace, and is passed between the inner cylinder and the outer cylinder into the generated gas. A sleeve for preventing dust blockage, in which a plurality of nozzles having a certain angle with respect to a radial direction for ejecting the coolant into the generated gas used in a pipe configured to inject the coolant are perforated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15899986A JPH0772276B2 (en) | 1986-07-07 | 1986-07-07 | A sleeve for preventing dust blockage used in the piping of coal gasifiers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15899986A JPH0772276B2 (en) | 1986-07-07 | 1986-07-07 | A sleeve for preventing dust blockage used in the piping of coal gasifiers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6315892A JPS6315892A (en) | 1988-01-22 |
| JPH0772276B2 true JPH0772276B2 (en) | 1995-08-02 |
Family
ID=15684015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15899986A Expired - Lifetime JPH0772276B2 (en) | 1986-07-07 | 1986-07-07 | A sleeve for preventing dust blockage used in the piping of coal gasifiers |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0772276B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2161107B (en) * | 1984-07-06 | 1988-03-02 | Advanced Semiconductor Mat | Method and apparatus for cold runner transfer molding |
| JPH086100B2 (en) * | 1990-02-16 | 1996-01-24 | バブコツク日立株式会社 | Slag adhesion prevention method for coal gasifier |
-
1986
- 1986-07-07 JP JP15899986A patent/JPH0772276B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6315892A (en) | 1988-01-22 |
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