JPH07113516A - Soot blower - Google Patents
Soot blowerInfo
- Publication number
- JPH07113516A JPH07113516A JP25967593A JP25967593A JPH07113516A JP H07113516 A JPH07113516 A JP H07113516A JP 25967593 A JP25967593 A JP 25967593A JP 25967593 A JP25967593 A JP 25967593A JP H07113516 A JPH07113516 A JP H07113516A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- cylinder
- heat transfer
- lance
- pressure vessel
- 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.)
- Withdrawn
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、煤吹装置、特に圧力容
器内に収容設置する炉、あるいはボイラー等の伝熱管壁
のための煤吹装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a soot blower, and more particularly to a soot blower for a furnace or a heat transfer tube wall such as a boiler housed in a pressure vessel.
【０００２】[0002]
【従来の技術】従来、圧力容器内に収容する炉、あるい
はボイラー等の伝熱管壁の除煤のための煤吹装置とし
て、図７に示す構成のものが使用されている。図７にお
いて、０１は圧力容器内に収容設置されたボイラー等の
伝熱管壁、０２は伝熱管壁０１外面の保温材、０３はボ
イラー等の外壁、０５は外壁０３、保温材０２、および
伝熱管壁０１を貫通し、先端部を伝熱管壁０１の内表面
に溶接接合したノズル管、０６はノズル管０５先端に設
けたノズル、０７はノズル管０５の後端に接続して、炉
あるいはボイラー等を収容する、図示省略の圧力容器内
から圧力容器の外へ導いた噴射媒体供給管、０８は伝熱
管壁を構成する伝熱管である。すなわち、煤吹装置は、
可動部のない固定型のノズル管０５、ノズル０６だけと
し、圧力容器外から必要に際し、噴射媒体供給管０７を
介し蒸気等の噴射媒体を送って、ノズル０６から伝熱管
壁０１へ噴射し、除煤を行う。2. Description of the Related Art Conventionally, as a soot blowing device for removing soot from the wall of a heat transfer tube such as a furnace or a boiler housed in a pressure vessel, the one having the structure shown in FIG. 7 has been used. In FIG. 7, 01 is a heat transfer tube wall such as a boiler housed and installed in a pressure vessel, 02 is a heat insulating material on the outer surface of the heat transfer tube wall 01, 03 is an outer wall such as a boiler, 05 is an outer wall 03, heat insulating material 02, And a nozzle tube that penetrates the heat transfer tube wall 01 and has its tip end welded to the inner surface of the heat transfer tube wall 01, 06 is a nozzle provided at the tip of the nozzle tube 05, and 07 is connected to the rear end of the nozzle tube 05. And a reference numeral 08 denotes a heat transfer tube which constitutes a wall of the heat transfer tube and which guides a jetting medium supply pipe which is guided from the inside of a pressure container (not shown) to the outside of the pressure container for accommodating a furnace or a boiler. That is, the soot blowing device,
Only the fixed type nozzle tube 05 and the nozzle 06 having no movable parts are provided, and when necessary from outside the pressure vessel, an injection medium such as steam is sent through the injection medium supply pipe 07 and injected from the nozzle 06 to the heat transfer tube wall 01. , Remove soot.
【０００３】この煤吹装置は、伝熱管壁０１に接合して
設けたため、伝熱管壁０１を構成する伝熱管０８の内部
を流れる流体により冷却される作用はあるが、ノズル管
０５、及びノズル０６は噴射媒体の噴射する時以外も、
絶えず、伝熱管壁０１内部側で高温雰囲気に晒されてい
るから、高温酸化反応により焼損劣化し、また、ノズル
０６およびノズル管０５自体が煤の付着で、詰まりを生
じるのを避けられない等の問題がある。Since this soot blowing device is provided by being joined to the heat transfer tube wall 01, it has the effect of being cooled by the fluid flowing inside the heat transfer tube 08 constituting the heat transfer tube wall 01, but the nozzle tube 05, And the nozzle 06, except when ejecting the ejection medium,
Since the interior of the heat transfer tube wall 01 is constantly exposed to a high temperature atmosphere, it is inevitable that the nozzle 06 and the nozzle tube 05 themselves are clogged due to soot adhesion due to high temperature oxidation reaction. There is a problem such as.
【０００４】また、この煤吹装置の焼損等を避けるため
に、煤吹時だけノズル０６及びノズル管０５を伝熱管壁
０１内へ挿入し、煤吹作動させない時には伝熱管壁０１
外の低温部へ引出して置く、抜差し形にするものもある
が、圧力容器内にボイラー等を収容設置する石炭ガス化
炉等では、伝熱管壁０１外側も高温、高圧下に保持され
ているため、また圧力容器内の空間が狭いため、抜差し
用の駆動装置及び機構が簡単に設置できない困難があ
る。In order to avoid the burnout of the soot blowing device, the nozzle 06 and the nozzle pipe 05 are inserted into the heat transfer tube wall 01 only during the soot blowing, and the heat transfer tube wall 01 is not operated when the soot blowing operation is not performed.
There is also a plug-in type that is pulled out to an outside low temperature part, but in a coal gasification furnace or the like in which a boiler or the like is housed and installed in a pressure vessel, the outside of the heat transfer tube wall 01 is also kept under high temperature and high pressure. Since the space inside the pressure vessel is narrow, it is difficult to easily install the drive device and mechanism for insertion / removal.
【０００５】[0005]
【発明が解決しようとする課題】本発明は、上記、従来
装置の問題を解決するため、高温、高圧下の狭い圧力容
器内に設置でき、また高温酸化反応によるノズル管、ノ
ズルの焼損劣化を防止でき、充分有効に作動できる抜差
し形の煤吹装置を提供することを課題とした。In order to solve the above-mentioned problems of the conventional apparatus, the present invention can be installed in a narrow pressure vessel under high temperature and high pressure, and the deterioration of burnout of the nozzle pipe and nozzle due to high temperature oxidation reaction. An object of the present invention is to provide a removable soot blowing device that can be prevented and can operate effectively.
【０００６】[0006]
【課題を解決するための手段】この課題を達成するた
め、本発明の煤吹装置は次の手段とした。 （１）炉又はボイラが内部に形成され圧力容器内に収容
される伝熱管壁に拡開孔を凹設し、この拡開孔の外周を
その内周面で取囲み、拡開孔の外周に空間を形成する環
状筒体のシール箱を伝熱管壁に固着して設けた。 （２）シール箱の伝熱管壁への固着部と対向する後端
に、前端壁を介して固着され、シール箱と同軸に配設さ
れたシリンダを設けた。 （３）外周面にシリンダ内周面を摺動するピストンが突
設され、シリンダの前端壁を貫通し、シリンダ内を軸方
向に移動し、ノズルを設けた先端部が拡開孔から伝熱管
壁の内側に到達できるランス管を設けた。 （４）圧力容器の外側に開閉バルブが介装され、圧力容
器を貫通してシール箱の外周に設置した導入口に接続す
るシールガス供給管により、シール箱内部に不活性ガス
を供給し、シール箱の内周に設置した噴出口から拡開孔
に吹き出し、拡開孔内部、およびランス管先端部を冷却
するシールガス供給手段を設けた。 （５）圧力容器の外側に開閉バルブが介装され、圧力容
器を貫通してシリンダ内部に接続する駆動ガス供給管に
より、不活性ガスを、シリンダ内部を摺動するピストン
の１方側のシリンダ内に供給し、ピストンを駆動し、ピ
ストンに連結されたランス管を軸方向に移動させる駆動
ガス供給手段を設けた。 （６）圧力容器の外側に開閉バルブが介装され、圧力容
器を貫通してランス管の後端に接続する噴射媒体供給管
により、噴射媒体をランス管内部供給し、ランス管の先
端に設けられ、伝熱管壁から内部に挿入されたノズルか
ら噴射媒体を噴射させ、炉又は伝熱管壁に付着した煤塵
を除去する噴射媒体供給手段を設けた。In order to achieve this object, the soot blowing device of the present invention has the following means. (1) An expansion hole is recessed in the wall of the heat transfer tube formed inside the furnace or boiler and housed in the pressure vessel, and the outer periphery of this expansion hole is surrounded by its inner peripheral surface. An annular cylindrical seal box that forms a space on the outer periphery is fixed to the heat transfer tube wall. (2) At the rear end of the seal box, which is opposed to the fixed portion to the heat transfer tube wall, there is provided a cylinder fixed through the front end wall and arranged coaxially with the seal box. (3) A piston that slides on the inner peripheral surface of the cylinder is projected on the outer peripheral surface, penetrates the front end wall of the cylinder, moves axially in the cylinder, and the tip end with the nozzle transfers heat from the expansion hole. A lance tube was provided to reach the inside of the tube wall. (4) An opening / closing valve is provided outside the pressure container, and an inert gas is supplied to the inside of the seal box by a seal gas supply pipe that penetrates the pressure container and is connected to an inlet provided on the outer periphery of the seal box. A seal gas supply means was provided to blow out from a jet port installed on the inner circumference of the seal box into the expansion hole to cool the inside of the expansion hole and the tip of the lance tube. (5) An on-off valve is provided outside the pressure vessel, and a drive gas supply pipe that penetrates the pressure vessel and is connected to the inside of the cylinder is used. A driving gas supply means was provided for driving the piston and for moving the lance tube connected to the piston in the axial direction. (6) An opening / closing valve is provided outside the pressure container, and the injection medium is supplied to the inside of the lance pipe by the injection medium supply pipe that penetrates the pressure container and is connected to the rear end of the lance pipe. In addition, the injection medium supply means for injecting the injection medium from the nozzle inserted inside from the heat transfer tube wall to remove the soot dust adhering to the furnace or the heat transfer tube wall is provided.
【０００７】また、他の本発明の煤吹装置は、上記
（１）〜（６）の手段に加え、次の手段とした。 （７）噴射媒体手段を構成する噴射媒体供給管は、少な
くとも、ランス管後端に接続金具等を介して直結される
端部が、可撓性の柔軟性のある部材で形成され、その軸
方向に駆動されるランス管の動きに自在に追縦できるよ
うにした。Another soot blower of the present invention has the following means in addition to the above means (1) to (6). (7) At least the end of the jet medium supply pipe that constitutes the jet medium means is directly connected to the rear end of the lance pipe through a connecting fitting or the like, and is formed of a flexible member. It is possible to freely follow the movement of the lance tube driven in the direction.
【０００８】また、他の本発明の煤吹装置は、上記
（１）〜（６）の手段に加え、次の手段とした。 （８）シリンダの後端に配設された後端壁にシリンダと
同軸に結合され、シリンダの内部を軸方向に駆動され
る、ランス管の後端壁を貫通して後方に伸びる後端側
を、遊嵌、密閉して、噴射媒体供給管から、その内部に
導入された噴射媒体をランス管の内部へ送給できる噴射
媒体管室を設けた。Another soot blowing device of the present invention has the following means in addition to the means (1) to (6). (8) A rear end side extending rearward through the rear end wall of the lance pipe, which is coaxially coupled to the rear end wall disposed at the rear end of the cylinder and is axially driven inside the cylinder. Is loosely fitted and hermetically sealed, and an injection medium tube chamber is provided in which the injection medium introduced into the injection medium supply tube can be fed into the lance tube.
【０００９】また、他の本発明の煤吹装置は、上記
（１）〜（６）の手段に加え、次の手段とした。 （９）シリンダの後端に配設された後端壁に結合され、
その先端側は後端壁を貫通して、シリンダ内部を軸方向
に駆動されるランス管の後端から、ランス管の内部に摺
動自在に挿入され、その後端側には噴射媒体供給管が連
結された噴射媒体送出し管を設けた。Further, another soot blowing device of the present invention has the following means in addition to the above means (1) to (6). (9) It is connected to the rear end wall arranged at the rear end of the cylinder,
The front end side penetrates the rear end wall and is slidably inserted into the lance pipe from the rear end of the lance pipe which is axially driven in the cylinder, and the injection medium supply pipe is on the rear end side. A connected jet medium delivery tube was provided.
【００１０】[0010]
【作用】本発明の煤吹装置では、上記（１）〜（６）の
手段の採用により、（１）圧力容器の外からの弁操作
で、シール箱内へ送られる不活性の圧力ガスがシール箱
内周から拡開孔内へ、伝熱管壁の内部圧力により若干高
い圧力で吹き出し、このガス流れが伝熱管壁の拡開孔内
に冷却膜を形成し、伝熱管壁内部からの温度の伝達を遮
断し、拡開孔内部を低温に保持すると共に、拡開孔を介
しての圧力容器内への熱の流入を防止する。また、シー
ル箱と同軸に設けたシリンダは、圧力容器の外から弁操
作で送られる不活性の圧力駆動ガスが導入され、ピスト
ンを駆動して、前端壁を貫通して設けられたランス管を
抜差し駆動し、ランス管の先端はシールガスが吹き出さ
れている拡開孔から伝熱管壁の内部へ出入りし、煤塵の
付着しやすい個所にノズルを誘導する。In the soot-blowing device of the present invention, by adopting the above-mentioned means (1) to (6), (1) the inert pressure gas sent to the inside of the seal box is operated by the valve operation from the outside of the pressure vessel. From the inner circumference of the seal box to the inside of the expansion hole at a slightly higher pressure due to the internal pressure of the heat transfer tube wall, this gas flow forms a cooling film in the expansion hole of the heat transfer tube wall, The transmission of the temperature from the inside is blocked, the inside of the expansion hole is kept at a low temperature, and the heat is prevented from flowing into the pressure vessel through the expansion hole. Further, the cylinder provided coaxially with the seal box receives an inert pressure-driven gas sent from outside the pressure vessel by a valve operation, drives a piston, and installs a lance pipe penetrating the front end wall. Driven by insertion / removal, the tip of the lance tube enters / exits the inside of the heat transfer tube wall through the expansion hole from which the sealing gas is blown, and guides the nozzle to a place where dust easily adheres.
【００１１】この時、不活性のシールガス及び駆動用ガ
スは、圧力容器内の空間温度より低温で使用できるか
ら、抜き差し各状態で、ランス管の先端部及びノズルの
周囲に冷却膜を形成し冷却する作用を生じ、伝熱管壁の
内側の高温度から受ける熱影響を緩和し、ランス管を特
殊な高温用材料等を使用しなくても、高温酸化反応によ
る焼損劣化が防止できる。At this time, since the inert seal gas and the driving gas can be used at a temperature lower than the space temperature inside the pressure vessel, a cooling film is formed around the tip of the lance tube and around the nozzle in each state of insertion and removal. The cooling effect is generated, the heat effect from the high temperature inside the heat transfer tube wall is mitigated, and the burnout deterioration due to the high temperature oxidation reaction can be prevented without using a special high temperature material for the lance tube.
【００１２】また、この焼損劣化防止により、設計値通
りの噴射媒体が、煤塵の発生しやすい個所に効果的に噴
射できるので、伝熱管壁内部の煤塵の除去が有効に行わ
れるとともに、ノズルおよびランス管内部に煤の付着で
詰まることが防止できる。Further, by preventing the burnout deterioration, the jetting medium according to the designed value can be jetted effectively to the place where the dust is likely to be generated, so that the dust inside the heat transfer tube wall can be effectively removed and the nozzle can be effectively removed. Also, it is possible to prevent clogging of the lance tube due to the attachment of soot.
【００１３】さらに、ランス管と、その先端のノズル
は、煤吹き作動時だけシールガス流を貫通して、先端を
伝熱管壁の内部に挿入して噴射媒体を噴射し、煤吹き終
了後は、伝熱管壁の外部へ抜出して、シールガスにより
低温化された拡開孔で仕切られた圧力容器内温度の雰囲
気下で保たれるから、伝熱管壁内部の高温にさらされる
時間が短くなり、さらにノズル付近ランス管の焼損や高
温劣化が解消される。Further, the lance tube and the nozzle at the tip thereof penetrate the seal gas flow only during the soot blowing operation, insert the tip into the wall of the heat transfer tube to jet the jetting medium, and after the soot blowing is finished. Is exposed to the outside of the heat transfer tube wall and is kept in the atmosphere of the temperature inside the pressure vessel partitioned by the expansion holes whose temperature is lowered by the seal gas. Is shortened, and burnout and high temperature deterioration of the lance tube near the nozzle are eliminated.
【００１４】さらに、本煤吹装置は、コンパクトに纏め
られ、また、ランス管とこれを駆動するシリンダが二重
管に形成されているので、抜差しのための長さを大きく
取る必要がなく、圧力容器内の狭い空間に充分設置する
ことができる。Further, since the present soot blowing device is compactly assembled and the lance tube and the cylinder for driving the lance tube are formed in a double tube, it is not necessary to take a long length for insertion and removal, It can be installed in a narrow space within the pressure vessel.
【００１５】また、他の本発明の煤吹装置は、上記
（１）の作用に加え、上記（７）の手段の採用により、
（２）ランス管後端に特別の装置を設けることなく、圧
力容器内へ一部を固定した噴射媒体供給管のランス管へ
の接続端部が、ランス管の動きに追縦して動き、噴射媒
体のランス管ノズルへの供給がスムーズに行うことがで
きるとともに、機構を簡単化できる。Another soot-blowing device of the present invention adopts the above-mentioned means (7) in addition to the above-mentioned function (1).
(2) The connecting end portion of the injection medium supply pipe, which is partially fixed in the pressure vessel, to the lance pipe moves vertically to the movement of the lance pipe without providing a special device at the rear end of the lance pipe, The injection medium can be smoothly supplied to the lance tube nozzle, and the mechanism can be simplified.
【００１６】また、他の本発明の煤吹装置は、上記
（１）の作用に加え、上記（８）の手段の採用により、
（３）外部が圧力容器に固定の、一体構造にでき、しか
も、内部のランス管だけが抜差し移動できるから、各供
給管系とも固定配置のものでよくなり、煤吹装置の作動
が確実になるとともに、構造をシンプルでコンパクトに
できる。Another soot-blowing device of the present invention adopts the above-mentioned means (8) in addition to the above-mentioned function (1).
(3) The external structure can be fixed to the pressure vessel, and the integrated structure can be achieved. Further, only the internal lance pipe can be inserted and removed, so that each supply pipe system can be fixedly arranged, and the operation of the soot blowing device can be ensured. In addition, the structure can be simple and compact.
【００１７】さらに、他の本発明の煤吹装置は、上記
（１）の作用に加え、上記（９）の手段の採用により、
（４）上記（３）と同等の作用が得られるとともに、ラ
ンス管の短縮化が可能となり、抜差しに要する空間を、
より小さくすることができ、小さな圧力容器内のものに
採用することができる。Further, in another soot blowing device of the present invention, in addition to the function of the above (1), by adopting the means of the above (9),
(4) The same action as (3) above can be obtained, and the lance tube can be shortened, and the space required for insertion / removal can be reduced.
It can be smaller and can be used in small pressure vessels.
【００１８】[0018]
【実施例】以下、本発明を図に示す実施例に基づき詳細
に説明する。図１は本発明の第１実施例としての煤吹装
置を、圧力容器内に収容設置したガス化炉の伝熱管壁に
対し、圧力容器内において取付けた側面図、図２は煤吹
装置の詳細を示す、一部破断面で示す側面図を示してい
る。図１において、煤吹装置１は、伝熱管壁４の内部に
設置されたガス化炉３のバーナー５に近い、煤の最も付
着し易いディフューーザー６部に対し、上から下へノズ
ルを向けて、伝熱管壁４の周囲の複数箇所に設けてい
る。７は圧力容器２外部の図示されない蒸気発生源等か
ら、前記煤吹装置１に接続した除煤用の噴射媒体供給
管、８は同様に、圧力容器２外部の図示されない不活性
ガス発生源から、煤吹装置１に接続したシールガス供給
管、さらに、９及び１０はシールガス供給管８同様に、
不活性ガス発生源から、煤吹装置１に接続したシリンダ
駆動用の駆動ガス供給管、１１は圧力容器２の外部で、
上記各供給管７〜１０に介装した開閉弁である。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below based on the embodiments shown in the drawings. FIG. 1 is a side view of a soot blowing device according to a first embodiment of the present invention mounted in a pressure vessel against a heat transfer tube wall of a gasification furnace housed and installed in the pressure vessel, and FIG. 2 is a soot blowing apparatus. The side view which shows the detail of FIG. In FIG. 1, the soot blowing device 1 directs nozzles from top to bottom with respect to the diffuser 6 part where the soot is most likely to adhere, which is near the burner 5 of the gasification furnace 3 installed inside the heat transfer tube wall 4. And is provided at a plurality of locations around the heat transfer tube wall 4. Reference numeral 7 denotes a vapor generation source (not shown) outside the pressure vessel 2, a jetting medium supply pipe for soot removal connected to the soot blowing device 1, and 8 denotes an inert gas generation source (not shown) outside the pressure vessel 2 as well. , A seal gas supply pipe connected to the soot blower 1, and 9 and 10 like the seal gas supply pipe 8.
A drive gas supply pipe for driving a cylinder connected to the soot blowing device 1 from an inert gas generation source, 11 is outside the pressure vessel 2,
An on-off valve provided in each of the supply pipes 7 to 10.
【００１９】また、図２において、１２はガス化炉３の
伝熱管壁４に凹設された拡開孔、１３は同拡開孔１２を
その内周面で囲み伝熱管壁４の外面に、その前端面を溶
接固定した環状筒体で形成されたシール箱、１３ａはシ
ール箱の外周に設置された導入口１３ｄへシールガスを
供給するためのホース接続部、１３ｂはシール箱１３の
内部に設けられた環状のガス室、１３ｃはシール箱１３
の内周側壁に設けられ拡開孔１２へ通じる噴出口、１４
はシール箱１３の後端面に前端壁１４ｃを介して同軸に
フランジ接続されたシリンダ、１５は同シリンダ１４内
に同軸状に配設され、シリンダ１４内面を摺動するピス
トン１５ａを外周面に具えて、シリンダ１４の両側に突
出し、その先端部が前端壁１４ｃを貫通して、拡開孔１
２の内外へ往復摺動可能に、シリンダ１４内に組み合わ
された中空のランス管、１５ｂはランス管１５の先端部
に下向きに設けたノズル、１７はランス管１５の後端に
固着された接続箱１５ａに接続したＣ型の接続管、１８
は同接続管１７の上端垂直部をランス管１５の移動方向
に案内する、シール箱１３上に支持されたガイド、１９
はシリンダ１４の後端壁１４ｂと、ランス管１５後端に
設けた接続箱１５ｃ外面管とに端部を接続し、ランス管
１５の露出部を遮蔽して設けた竹の子バネによるカバー
である。Further, in FIG. 2, reference numeral 12 denotes an expansion hole formed in the heat transfer tube wall 4 of the gasification furnace 3, and 13 denotes the heat transfer tube wall 4 surrounding the expansion hole 12 with its inner peripheral surface. A seal box formed of an annular cylindrical body having its front end surface welded and fixed to the outer surface, 13a is a hose connecting portion for supplying a seal gas to an inlet port 13d installed on the outer circumference of the seal box, and 13b is a seal box 13 An annular gas chamber provided inside the chamber, 13c is a seal box 13.
, 14 on the inner side wall of the
Is a cylinder coaxially flange-connected to the rear end surface of the seal box 13 through a front end wall 14c, and 15 is coaxially arranged in the cylinder 14 and has a piston 15a sliding on the inner surface of the cylinder 14 on the outer peripheral surface. By the way, the cylinder 14 protrudes on both sides, and the tip of the cylinder 14 penetrates the front end wall 14c to form the expansion hole 1
2 is a hollow lance tube assembled in the cylinder 14 so as to be able to slide back and forth. 15b is a nozzle provided downward at the tip of the lance tube 15, and 17 is a connection fixed to the rear end of the lance tube 15. C type connecting pipe connected to the box 15a, 18
Is a guide supported on the seal box 13 for guiding the upper end vertical portion of the connecting pipe 17 in the moving direction of the lance pipe 15,
Is a cover of a bamboo spring provided by connecting the ends of the rear end wall 14b of the cylinder 14 and the outer surface pipe of the connection box 15c provided at the rear end of the lance pipe 15 and shielding the exposed portion of the lance pipe 15.
【００２０】また、図１に示した、噴射媒体供給管７、
シールガス供給管８、及び駆動ガス供給管９，１０は、
それぞれ、図２中で示すように、可撓管７ａを介して上
端接続部１７ａ、接続管１７、接続箱１５ｃを介してラ
ンス管１５後端に導入され、ランス管１５の内部を流
れ、ノズル１５ｂから拡開孔１２に噴射媒体を供給する
噴射媒体供給手段、可撓管８ａを介してシール箱１３の
ホース接続部１３ａ、導入口１３ｄを通じてガス室１３
ｂへ流れ、噴出口１３ｃから拡開孔１２にシールガスを
噴出させるシールガス供給手段、および可撓管９ａ，１
０ａの一方を介してシリンダ１４の前、後端壁１４ｂ、
１４ｃに設けられたガス導入口１４ａ、１４ａの一方か
らピストン１５ａの１側のシリンダ１４に入り、ピスト
ン１５ａを作動し、またピストン１５ａの他側から後、
前端壁１４ｃ、１４ｂに設けられた、他方のガス導入口
１４ａから他方の可撓管９ａ、８ａを介して外部へ排出
される駆動ガス供給手段を構成している。特に、噴射媒
体供給手段を構成する噴射媒体供給管７が、接続管１７
の上端に設けた接続部１７ａとの接続部近傍で、可撓性
の材料で形成された噴射媒体供給管７ａで形成されてい
るため、ガス導入口１４ａからのピストン１５ａの一方
の側へのシリンダ１４内への駆動ガスの注入による、ラ
ンス管１５の移動に対しても、自由に追従できる。Further, the injection medium supply pipe 7 shown in FIG.
The seal gas supply pipe 8 and the drive gas supply pipes 9 and 10 are
As shown in FIG. 2, each is introduced to the rear end of the lance pipe 15 via the upper end connecting portion 17a, the connecting pipe 17 and the connecting box 15c via the flexible pipe 7a, flows inside the lance pipe 15, A gas chamber 13 through a hose connecting portion 13a of the seal box 13 and an inlet 13d through a flexible tube 8a, a jet medium supplying means for supplying a jet medium from the expansion hole 12 from 15b.
b, the seal gas supply means for ejecting the seal gas from the ejection port 13c to the expansion hole 12, and the flexible tubes 9a, 1
0a through one of the front and rear end walls 14b of the cylinder 14,
14c, one of the gas introduction ports 14a, 14a enters into the cylinder 14 on one side of the piston 15a to operate the piston 15a, and from the other side of the piston 15a,
It constitutes a driving gas supply means provided on the front end walls 14c and 14b and discharged from the other gas introduction port 14a to the outside through the other flexible tubes 9a and 8a. In particular, the injection medium supply pipe 7 forming the injection medium supply means is connected to the connection pipe 17.
Since it is formed of the injection medium supply pipe 7a formed of a flexible material in the vicinity of the connection portion with the connection portion 17a provided on the upper end of the piston, the gas introduction port 14a is connected to one side of the piston 15a. It is possible to freely follow the movement of the lance tube 15 due to the injection of the driving gas into the cylinder 14.
【００２１】一般的に、上記ガス化炉３内は１２００〜
１３００℃、３０気圧、ガス化炉３外側の圧力容器２内
空間は３５０℃、３０気圧のような高温高圧雰囲気下に
ある。ガス化炉３内圧力より若干高い圧力のシールガス
が、シールガス供給手段の、圧力容器３の外部に設けた
開閉弁１１による制御で、噴射媒体供給管８及び８ａを
経てシール箱１３に送られ、接続部１３ａから環状室１
３ｂ、及び開口１３ｃ、を通って拡開孔１２からガス化
炉３内に連続して送られることにより、ガス化炉３内外
の温度がシールガスで遮断され、拡開孔１２の高温化を
防止する。Generally, the inside of the gasification furnace 3 is 1200 to
The internal space of the pressure vessel 2 outside the gasification furnace 3 at 1300 ° C. and 30 atm is under a high temperature and high pressure atmosphere such as 350 ° C. and 30 atm. The seal gas having a pressure slightly higher than the internal pressure of the gasification furnace 3 is sent to the seal box 13 via the injection medium supply pipes 8 and 8a under the control of the on-off valve 11 provided outside the pressure vessel 3 of the seal gas supply means. The connecting chamber 13a to the annular chamber 1
By being continuously fed from the expansion hole 12 into the gasification furnace 3 through the opening 3c and the opening 13c, the temperature inside and outside the gasification furnace 3 is blocked by the seal gas, and the temperature of the expansion hole 12 is raised. To prevent.
【００２２】この状態下において、煤吹装置１は、煤吹
作動しない時は、開閉弁１１による駆動ガス供給手段の
制御で、シリンダ部１４内のランス管１５を、図２の実
線で示す抜出し位置に後退させて置く。また、煤吹作動
させる時には、ランス管１５をピストン１５ａの駆動に
より、鎖線で示す差込み位置へ摺動移動し、噴射媒体供
給手段に設けた開閉弁１１の操作で、高圧蒸気等の媒体
を供給してノズル１６から下向きに噴射し、伝熱管壁４
及びディフューザー６部分の除煤を行ない、一定時間の
除煤運転の後、再び実線の抜出し位置に後退させる。煤
吹装置１の除煤運転中、ランス管１５は拡開孔１２を通
って、ガス炉３内に差込み、ランス管１５の周囲はシー
ルガスで包囲された状態で、噴射媒体を下方へ噴射さ
れ、ガス化炉３内と圧力容器２室間の断熱が保たれる。In this state, when the soot blower 1 does not operate, the drive gas supply means is controlled by the opening / closing valve 11, and the lance pipe 15 in the cylinder portion 14 is pulled out as shown by the solid line in FIG. Put it back in position. When the soot blowing operation is performed, the lance tube 15 is slid to the insertion position shown by the chain line by driving the piston 15a, and the medium such as high-pressure steam is supplied by operating the on-off valve 11 provided in the injection medium supply means. And jetted downward from the nozzle 16 to the heat transfer tube wall 4
Then, soot is removed from the diffuser 6 part, and after soot operation for a certain period of time, the diffuser 6 is moved back to the extraction position indicated by the solid line. During the soot blowing operation of the soot blowing device 1, the lance pipe 15 is inserted into the gas furnace 3 through the expansion hole 12, and the periphery of the lance pipe 15 is surrounded by the seal gas and the injection medium is injected downward. Thus, heat insulation between the gasification furnace 3 and the pressure chamber 2 chamber is maintained.
【００２３】上記のように、煤吹装置１は、除煤運転作
動中、非作動中の何れの時も、シールガスで温度遮蔽し
て、シリンダ１４及びランス管１５の動作部が、圧力容
器２室側温度雰囲気下で保持され、ノズル１６も噴射時
以外は、圧力容器室内に保持されるから、煤の付着や、
炉３内の高温による焼損や高温劣化がなくなる。また、
不活性のシールガス及び駆動ガスは、圧力容器２内及び
３炉内の高温に比較し、低温のガスを使用できるから、
抜差し、各状態でランス管１５の先端部とノズル１５ｂ
を冷却する作用が得られ、炉３内及び圧力容器２内の高
温から受ける熱影響を緩和し、特殊な高温用材料等を使
用しないでよくなる。従って、上述した構成によれば、
コンパクトな抜き差し型の機構で煤吹装置を圧力容器２
の狭い空間部内に配置できるようになり、焼損を防止で
きる。As described above, the soot blowing device 1 shields the temperature with the seal gas during the soot-removing operation and in the non-operating state so that the operating portions of the cylinder 14 and the lance pipe 15 are pressure vessels. Since the nozzle 16 is held under the temperature atmosphere of the two chambers and the nozzle 16 is also held in the pressure container chamber except at the time of jetting, soot adhesion or
Burnout and deterioration due to high temperature in the furnace 3 are eliminated. Also,
Since the inert seal gas and the driving gas can use low temperature gas as compared with the high temperature in the pressure vessel 2 and the furnace 3,
The tip of the lance tube 15 and the nozzle 15b are connected and disconnected in each state.
Is obtained, the heat effect from the high temperature in the furnace 3 and the pressure vessel 2 is mitigated, and it is not necessary to use a special high temperature material or the like. Therefore, according to the configuration described above,
The soot blowing device is a pressure vessel with a compact plug-in type mechanism.
Since it can be placed in a narrow space, the burnout can be prevented.
【００２４】次に、図３、図４は本発明の第２実施例を
示す図であって、図３は本実施例に係る煤吹装置を、圧
力容器内に収容設置したガス化炉の伝熱管壁に対し、圧
力容器２内において取付けた側面図を、図４は煤吹装置
の詳細を示す一部破断面で示す側面図を示している。こ
れらの図において、図１、図２と同一符番のものは類似
又は同一構造のものであるので説明を省略する。図４に
おいて、２０はシリンダ１４の後端壁１４ｂに同軸に接
続固定され、後端壁１４ｂを貫通して後方へ伸ばされた
前記ランス管１５の後端部側を収容する噴射媒体管室、
２１は同噴射媒体管室２０に、接続箱２３を介してその
１方の端部を接続した接続管、２２は接続管２１他方の
端部に設けられた接続部で、前記噴射媒体供給管７に接
続している。Next, FIGS. 3 and 4 are views showing a second embodiment of the present invention. FIG. 3 shows a gasification furnace in which the soot blower according to the present embodiment is housed and installed in a pressure vessel. FIG. 4 shows a side view of the heat transfer tube wall attached to the inside of the pressure vessel 2, and FIG. 4 shows a side view showing a detail of the soot blower with a partially broken section. In these figures, the same reference numerals as those in FIG. 1 and FIG. 2 are similar or have the same structure, and therefore the description thereof will be omitted. In FIG. 4, reference numeral 20 denotes an injection medium pipe chamber which is coaxially connected and fixed to the rear end wall 14b of the cylinder 14 and accommodates the rear end side of the lance pipe 15 which extends rearward through the rear end wall 14b,
Reference numeral 21 denotes a connection pipe in which one end of the injection medium pipe chamber 20 is connected to the injection medium pipe chamber 20 through a connection box 23. Reference numeral 22 denotes a connection portion provided at the other end of the connection pipe 21, which is the injection medium supply pipe. Connected to 7.
【００２５】次に、上述した本実施例装置の作用につい
て説明する。本実施例においては、シリンダ１４内部の
ランス管１５のみが移動し、噴射媒体は噴射媒体供給管
７、接続部２２、接続管２１、および接続箱２３を介し
て噴射媒体管室２０に導入され、噴射媒体管室２０に開
口するランス管１５後端からランス管１５の内部へ入
り、煤吹装置１の外殻が一体構造にできるため、噴射媒
体供給のための可動部がなくなり、接続部のシールを容
易にすることができる。Next, the operation of the above-described apparatus of this embodiment will be described. In the present embodiment, only the lance pipe 15 inside the cylinder 14 moves, and the injection medium is introduced into the injection medium pipe chamber 20 via the injection medium supply pipe 7, the connection portion 22, the connection pipe 21 and the connection box 23. Since the outer shell of the soot blowing device 1 can be integrated into the inside of the lance tube 15 from the rear end of the lance tube 15 opening to the injection medium tube chamber 20, there is no movable part for supplying the injection medium, and the connection part is not provided. Can be easily sealed.
【００２６】次に、図５、図６は本発明の第３実施例を
示す図であって、図５は本実施例に係る煤吹装置を、圧
力容器内に収容設置したガス化炉の伝熱管壁に対し、圧
力容器内において取付けた側面図を、図６は煤吹装置の
詳細を示す一部破断面で示す側面図を示す。これらの図
において、図１、図２と同一符番のものは、同一又は類
似の構造のものであるので説明を省略する。図６におい
て、２４はシリンダ１４の後端壁１４ｂに中央部を溶接
固定して、先端側をシリンダ１４の軸線沿いに位置させ
た噴射媒体送出し管、２４ａは噴射媒体送出し管１５後
端側に設けた噴射媒体供給管７ａとの接続部、１５は先
端に噴射ノズル１５ｂ、後端に、シリンダ１４の内面と
噴射媒体送出し管２４の外面とに、それぞれ摺動するピ
ストン１５ａ′を具えて、前記噴射媒体送出し管２４の
外面と間隙をおいて嵌合し、軸方向へ可動に、シリンダ
４内に支持したランス管である。Next, FIGS. 5 and 6 are views showing a third embodiment of the present invention, and FIG. 5 shows a gasification furnace in which the sootblower according to this embodiment is housed and installed in a pressure vessel. FIG. 6 is a side view showing the heat transfer tube wall mounted in the pressure vessel, and FIG. 6 is a side view showing a detail of the soot blower with a partial cross section. In these figures, the same reference numerals as those in FIG. 1 and FIG. 2 have the same or similar structures, and thus the description thereof will be omitted. In FIG. 6, reference numeral 24 denotes an injection medium delivery pipe whose central portion is welded and fixed to the rear end wall 14b of the cylinder 14 and the front end side is located along the axis of the cylinder 14, and 24a denotes an injection medium delivery pipe 15 rear end. A connecting portion with the injection medium supply pipe 7a provided on the side, 15 is an injection nozzle 15b at the tip, and a piston 15a 'sliding at the rear end is provided on the inner surface of the cylinder 14 and the outer surface of the injection medium delivery pipe 24, respectively. It is a lance tube that is fitted in the outer surface of the jet medium delivery tube 24 with a gap, and is supported in the cylinder 4 so as to be movable in the axial direction.
【００２７】また、２５は前記シリンダ１４の後端壁１
４ｂを軸線方向にシール２６を介し貫通させて、一端を
ピストン１５ａ′の後面に固着し、先端部にストライカ
ー２７を設けたシリンダ１４のストローク検出用ロッ
ド、２８及び２９は前記シリンダ後端壁１４ｂに支持し
たブラケット３０上に、前記ストライカー２１と係合可
能に固定して配置した、シリンダ１４のストローク検出
用の２個のリミットスイッチ、３１は前記ストライカー
２１のためのガイド、３２はシリンダ後端壁１４ｂに支
持されて、上記ストローク検出用ロッド２５、ガイド３
１、リミットスイッチ２８、２９等を覆うカバー部材で
ある。Further, 25 is the rear end wall 1 of the cylinder 14.
4b through the seal 26 in the axial direction, one end of which is fixed to the rear surface of the piston 15a 'and the stroke detecting rod of the cylinder 14 provided with a striker 27 at the tip, 28 and 29 are the cylinder rear end wall 14b. Two limit switches, which are fixedly arranged so as to be engageable with the striker 21 on the bracket 30 supported by, for detecting the stroke of the cylinder 14, 31 is a guide for the striker 21, and 32 is a rear end of the cylinder. The stroke detection rod 25 and the guide 3 are supported by the wall 14b.
1, a cover member for covering the limit switches 28, 29 and the like.
【００２８】次に、上述した装置の作用について説明す
る。前述したように煤吹装置１は、煤吹作動しない時
は、駆動ガス供給手段の開閉バルブ１１の制御で、シリ
ンダ１４内のランス管１５を図６の実線で示す位置に後
退させて置き、また、煤吹作動させる時には、ランス管
１５を鎖線１５′で示す差込み位置へ摺動移動し、噴射
媒体供給手段の開閉バルブ１１の操作で、高圧蒸気等の
噴射媒体を噴射媒体送出し管２４経由でランス管１５へ
送り、ノズル１５ｂから下向きに噴出して伝熱管壁４及
びディフューザー６の除煤を行い、一定時間の除煤運転
の後、再び実線の抜出し位置に後退させる。この時、シ
リンダ１４によるランス管１５の送出し長さ、引込長さ
は、ストローク検出用ロッド２５上のストライカー２７
の移動をリミットスイッチ２８及び２９が検出し、駆動
ガス供給手段の開閉バルブ１１を閉じ操作させる。Next, the operation of the above-mentioned device will be described. As described above, when the soot blowing device 1 is not operated, the lance tube 15 in the cylinder 14 is retracted to the position shown by the solid line in FIG. 6 under the control of the opening / closing valve 11 of the driving gas supply means. Further, when the soot blowing operation is performed, the lance pipe 15 is slidably moved to the insertion position indicated by the chain line 15 ′, and the opening / closing valve 11 of the injection medium supply means is operated to deliver the injection medium such as high-pressure steam to the injection medium delivery pipe 24. It is sent to the lance pipe 15 via the nozzle 15b and jetted downward from the nozzle 15b to remove soot from the heat transfer tube wall 4 and the diffuser 6, and after the soot is run for a certain period of time, it is moved back to the extraction position indicated by the solid line. At this time, the delivery length and the withdrawal length of the lance pipe 15 by the cylinder 14 are determined by the striker 27 on the stroke detecting rod 25.
Is detected by the limit switches 28 and 29, and the opening / closing valve 11 of the driving gas supply means is closed.
【００２９】また、内部のランス管１５のみが移動し煤
吹装置１の外殻が一体構造になっているため、噴射媒体
管の可動部がなくなり、接続部のシールが容易になる。
また、不活性のシールガス及び駆動用ガスは、圧力容器
２内及び炉３内の温度に比較し、低温のガスを使用でき
るから、抜き差し各状態下で、ランス管１５とノズル１
５ｂ部を冷却する作用が得られ、この箇所へのガス化炉
３内及び圧力容器２内の高温の熱影響を緩和し、特殊な
高温用材料等を使用しなくてよくなる。従って、上述し
た構成によると、煤吹装置の抜差し機構と大きさは、著
しくコンパクトになり、圧力容器２内の狭い空間部内
に、容易に配置でき、圧力容器２内の高温高圧下で、焼
損を防止して安定的に使用できる効果が得られる。Further, since only the inner lance pipe 15 moves and the outer shell of the soot blower 1 has an integral structure, the moving part of the injection medium pipe is eliminated and the connection part is easily sealed.
Further, as the inert seal gas and the driving gas, a gas having a lower temperature than that of the temperature inside the pressure vessel 2 and the furnace 3 can be used.
The effect of cooling the portion 5b is obtained, the thermal effect of the high temperature in the gasification furnace 3 and the pressure vessel 2 on this portion is mitigated, and it is not necessary to use a special high temperature material or the like. Therefore, according to the above-mentioned structure, the soot-blowing device has a remarkably compact insertion / removal mechanism and size, can be easily arranged in a narrow space inside the pressure vessel 2, and can be burnt out under high temperature and high pressure in the pressure vessel 2. It is possible to obtain the effect that it can be used stably by preventing.
【００３０】[0030]
【発明の効果】以上、述べたように、本発明の煤吹装置
によれば、請求項１に示す構成により、（１）圧力容器
の外からの弁操作で、シール箱へ送られる不活性の圧力
ガスがシール箱内周から拡開孔内へ、伝熱管壁の内部圧
力により若干高い圧力で吹き出し、このガス流れが伝熱
管壁の拡開孔内を冷却し、伝熱管壁内部からの温度の伝
達を遮断し、拡開孔内部を低温に保持すると共に、拡開
孔を介しての圧力容器内への熱の流入を防止する。また
シール箱と同軸に設けたシリンダは、圧力容器の外から
弁操作で送られる不活性の圧力駆動ガスが導入され、ピ
ストンを駆動して前端壁を貫通して設けられたランス管
を抜差し駆動し、ランス管の先端はシールガスが吹き出
されている拡開孔から伝熱管壁の内部へ出入りし、煤塵
の付着しやすい個所にノズルを誘導し、効果的な除煤を
達成する。As described above, according to the soot blower of the present invention, the inert gas which is sent to the seal box by (1) the valve operation from the outside of the pressure vessel is constituted by the structure shown in claim 1. Pressure gas from the inner circumference of the seal box into the expansion hole at a slightly higher pressure due to the internal pressure of the heat transfer tube wall, and this gas flow cools the expansion hole of the heat transfer tube wall, The transmission of temperature from the inside is blocked, the inside of the expansion hole is kept at a low temperature, and the heat is prevented from flowing into the pressure vessel through the expansion hole. In addition, the cylinder provided coaxially with the seal box receives inert pressure-driven gas sent from outside the pressure vessel by valve operation, drives the piston, and drives the lance tube that penetrates through the front end wall to be inserted and removed. However, the tip of the lance tube enters and leaves the inside of the heat transfer tube wall through the expansion hole from which the sealing gas is blown, and guides the nozzle to a place where dust easily adheres, thereby achieving effective soot removal.
【００３１】また、不活性シールガス及び駆動用ガス
は、圧力容器内の空間温度より低温で使用できるから、
抜き差し各状態で、ランス管の先端部及びノズルの周囲
に冷却膜を形成し、断熱する作用を生じ、伝熱管壁の内
側の高温度から受ける熱影響を緩和し、ランス管を特殊
な高温用材料等を使用しなくても、高温酸化反応による
焼損劣化が防止できる。また、この焼損劣化防止によ
り、設計値通りの噴射媒体が煤塵の発生しやすい個所に
効果的に噴射できるので、伝熱管壁内部の煤塵の除去が
有効に行われるとともにノズルおよびランス管内部に煤
の付着が詰まることが防止できる。Since the inert seal gas and the driving gas can be used at a temperature lower than the space temperature in the pressure vessel,
In each state of insertion and removal, a cooling film is formed around the tip of the lance tube and around the nozzle to insulate the heat, alleviate the heat effect from the high temperature inside the heat transfer tube wall, and reduce the lance tube to a special high temperature. It is possible to prevent burnout deterioration due to a high temperature oxidation reaction without using a material for use. Also, by preventing this burnout deterioration, it is possible to effectively inject the jet medium according to the design value to the place where soot dust is likely to be generated, so the soot dust inside the heat transfer tube wall is effectively removed and the inside of the nozzle and lance tube It is possible to prevent the soot from clogging.
【００３２】さらに、ランス管と、その先端のノズル
は、煤吹き作動時だけ、シールガス流を貫通して、先端
を伝熱管壁の内部に挿入して、噴射媒体を噴射し、煤吹
き終了後は、伝熱管壁の外部へ抜出して、シールガスに
より低温化された拡開孔で仕切られた圧力容器内温度の
雰囲気下で保たれるから、伝熱管壁内部の高温にさらさ
れる時間が短くなり、さらにノズル付近ランス管の焼損
や高温劣化が解消される。Further, the lance tube and the nozzle at the tip thereof penetrate the seal gas flow only when the soot blowing operation is performed, and the tip is inserted into the wall of the heat transfer tube to inject the injection medium to blow the soot. After completion, it is extracted to the outside of the heat transfer tube wall and kept under the atmosphere of the temperature inside the pressure vessel partitioned by the expansion hole whose temperature is lowered by the seal gas, so it is exposed to the high temperature inside the heat transfer tube wall. This shortens the time taken for the burnout, and eliminates burnout and high temperature deterioration of the lance tube near the nozzle.
【００３３】また、他の本発明の煤吹装置は、上記効果
に加え、請求項２に示す構成により、（２）ランス管後
端に特別の装置を設けることなく、圧力容器内へ固定し
た噴射媒体供給管のランス管への接続端部が、ランス管
の動きに追縦して動くので、噴射媒体のランス管ノズル
への供給を、スムーズに行うことができるとともに、機
構の簡単化が達成できる。In addition to the above effects, another soot-blowing device of the present invention has the structure described in claim 2, in which (2) the lance tube is fixed in the pressure vessel without providing a special device at the rear end thereof. Since the connection end portion of the injection medium supply pipe to the lance pipe moves in tandem with the movement of the lance pipe, the injection medium can be smoothly supplied to the lance pipe nozzle and the mechanism can be simplified. Can be achieved.
【００３４】また、他の本発明の煤吹装置は、上記
（１）の効果に加え、請求項３に示す構成により、
（３）外部が圧力容器に固定の一体構造にでき、しかも
内部のランス管だけが抜差し、移動できるから、各供給
管系とも固定配置のものでよくなり、煤吹装置の作動が
確実になるとともに、構造をシンプルでコンパクトな強
固なものにできる。In addition to the effect of the above (1), another soot blowing device of the present invention has a configuration as set forth in claim 3.
(3) The external structure can be fixed to the pressure vessel, and only the internal lance tube can be inserted and removed and moved. Therefore, it is sufficient for each supply pipe system to have a fixed arrangement, and the operation of the soot-blowing device is ensured. At the same time, the structure can be simple, compact and strong.
【００３５】さらに、他の本発明の煤吹装置は、上記
（１），（３）の効果に加え、請求項４に示す構成によ
り、（４）ランス管の短縮化が可能となり抜差しに要す
る空間を小さくすることができ、狭い圧力容器内に容易
に配置できるコンパクトなものにでき、焼損を防止し
て、安定的に使用できる。In addition to the effects of the above (1) and (3), the other soot blowing device of the present invention has the construction as set forth in claim 4, and (4) the lance tube can be shortened and required for insertion and removal. The space can be made small, and it can be made compact so that it can be easily placed in a narrow pressure vessel, and can prevent burning and be used stably.
【図１】本発明の煤吹装置の第一実施例を示す図で、圧
力容器内のガス化炉に適用した側面図、FIG. 1 is a view showing a first embodiment of a soot blower of the present invention, a side view applied to a gasification furnace in a pressure vessel,
【図２】図１の煤吹装置の詳細を一部破断面で示す側面
図、FIG. 2 is a side view showing the details of the soot blowing device of FIG.
【図３】本発明の煤吹装置の第二実施例を示す図で、本
実施例を圧力容器内のガス化炉に適用した側面図、FIG. 3 is a diagram showing a second embodiment of the soot blowing device of the present invention, a side view of the present embodiment applied to a gasification furnace in a pressure vessel,
【図４】図３の煤吹装置の詳細を一部破断面で示す側面
図、FIG. 4 is a side view showing the details of the soot-blowing device of FIG. 3 in a partially broken section;
【図５】本発明の煤吹装置の第三実施例を示す図で、本
実施例を圧力容器内のガス化炉に適用した側面図、FIG. 5 is a view showing a third embodiment of the soot blowing device of the present invention, a side view of the present embodiment applied to a gasification furnace in a pressure vessel,
【図６】図５の煤吹装置の詳細を、一部破断面で示す側
面図である。FIG. 6 is a side view showing the details of the soot blowing device of FIG. 5 in a partially broken section.
【図７】従来の煤吹装置の断面図である。FIG. 7 is a cross-sectional view of a conventional soot blowing device.
１ 煤吹装置 ２ 圧力容器 ３ ガス化炉 ４ 伝熱管壁 ５ バーナ ６ ディフューザー部 ７，７ａ 噴射媒体供給管 ８，８ａ シールガス供給管 ９，９ａ，１０，１０ａ 駆動ガス供給管 １１ 開閉弁 １２ 拡開孔 １３ シール箱 １３ａ シール箱のホース接続部 １３ｂ シール箱のガス室 １３ｃ 噴出口 １３ｄ 導入口 １４ シリンダ １４ａ ガス導入口 １４ｂ シリンダの後端壁 １４ｃ シリンダの前端壁 １５，１５′ ランス管 １５ａ，１５ａ′ ピストン １５ｂ ノズル １５ｃ 接続箱 １６ １７ 接続管 １７ａ 接続部 １８ ガイド １９ カバー ２０ 噴射媒体管室 ２１ 噴射媒体管室の接続管 ２２ 接続管 ２３ 接続箱 ２４ 噴射媒体送出し管 ２４ａ 接続部 ２５ ストローク検出用ロッド ２６ シール ２７ ストライカー ２８，２９ リミットスイッチ ３０ ブラケット ３１ ガイド ３２ カバー部材 DESCRIPTION OF SYMBOLS 1 Soot blower 2 Pressure vessel 3 Gasification furnace 4 Heat transfer tube wall 5 Burner 6 Diffuser part 7,7a Injection medium supply pipe 8,8a Seal gas supply pipe 9,9a, 10,10a Driving gas supply pipe 11 Open / close valve 12 Expansion hole 13 Seal box 13a Seal box hose connection part 13b Seal box gas chamber 13c Jet port 13d Inlet port 14 Cylinder 14a Gas inlet port 14b Cylinder rear end wall 14c Cylinder front end wall 15, 15 'Lance tube 15a, 15a 'Piston 15b Nozzle 15c Connection box 16 17 Connection pipe 17a Connection part 18 Guide 19 Cover 20 Injection medium pipe chamber 21 Connection pipe of injection medium pipe chamber 22 Connection pipe 23 Connection box 24 Injection medium delivery pipe 24a Connection part 25 Stroke detection Rod 26 seal 27 striker 28, 29 limit switch 30 Racket 31 guide 32 cover
───────────────────────────────────────────────────── フロントページの続き (72)発明者 村井 暁 広島市西区観音新町四丁目６番22号 三菱 重工業株式会社広島製作所内 (72)発明者 平岡 秀嗣 広島市西区観音新町四丁目６番22号 三菱 重工業株式会社広島製作所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akira Murai 4-6-22 Kannon Shinmachi, Nishi-ku, Hiroshima City Mitsubishi Heavy Industries, Ltd. Hiroshima Works (72) Hidetsugu Hiraoka 4-6-22 Kannon Shinmachi, Nishi-ku, Hiroshima Inside Mitsubishi Heavy Industries Hiroshima Works
Claims (4)
の伝熱管壁に付着する煤塵を除去するために圧力容器内
に設ける煤吹装置において、前記伝熱管壁にに凹設した
拡開孔を内周面で包囲して前記伝熱管壁に固定された環
状筒体のシール箱と、前記シール箱の後端に前端壁を介
して結合され同軸に配設されたシリンダと、前記シリン
ダ内周面を摺動するピストンを外周に設けノズルを設け
た先端部を前記前端壁を貫通して前記伝熱管壁より内部
に挿入できるランス管と；前記圧力容器外に開閉バルブ
を具えたシールガス供給管により前記シール箱外周に設
置された導入口へ供給した不活性ガスを前記シール箱内
周に設けた噴出口から前記拡開孔へ噴出して前記ランス
管を冷却するシールガス供給手段と、前記圧力容器外に
開閉バルブを具えた駆動ガス供給管により前記シリンダ
内を摺動するピストンの１側に不活性ガスを供給して前
記ランス管を軸方向に駆動する駆動ガス供給手段と、前
記圧力容器外に開閉バルブを具えた噴射媒体供給管によ
り前記ランス管の後端に噴射媒体を供給し前記ノズルか
ら前記伝熱管壁より内部へ噴射して前記煤塵を除去する
噴射媒体供給手段とからなることを特徴とする煤吹装
置。1. A soot blowing device provided in a pressure vessel for removing soot dust adhering to the heat transfer tube wall of a furnace or a boiler housed in the pressure vessel, wherein the expansion is recessed in the heat transfer tube wall. A seal box of an annular cylindrical body which surrounds the hole with an inner peripheral surface and is fixed to the heat transfer tube wall, a cylinder which is coupled to a rear end of the seal box through a front end wall and is coaxially arranged, A lance tube having a piston that slides on the inner peripheral surface of the cylinder and a nozzle provided on the outer periphery, and a front end portion that penetrates through the front end wall and can be inserted into the inside from the heat transfer tube wall; and an opening / closing valve outside the pressure vessel A seal gas for cooling the lance pipe by injecting an inert gas, which has been supplied to the inlet provided on the outer periphery of the seal box by the seal gas supply pipe, from the ejection port provided on the inner periphery of the seal box to the expansion hole. A supply means and an opening / closing valve outside the pressure vessel were provided. Injection provided with a drive gas supply pipe for supplying an inert gas to one side of a piston sliding in the cylinder by a drive gas supply pipe to drive the lance pipe in an axial direction, and an opening / closing valve outside the pressure vessel. A soot blowing device comprising a medium supply pipe for supplying an injection medium to the rear end of the lance pipe and injecting it from the nozzle to the inside from the heat transfer pipe wall to remove the soot dust. .
ランス管に接続する端部が、可撓性部材で形成され、前
記ランス管の後端に追縦自在に連結されていることを特
徴とする請求項１の煤吹装置。2. An end portion of the jet medium supply pipe that is connected to at least the lance pipe is formed of a flexible member, and is vertically and vertically connected to a rear end of the lance pipe. The soot blowing device according to claim 1.
れ、内部を移動する前記ランス管の後端側を被包して、
前記噴射媒体供給管から導入した噴射媒体を前記ランス
管後端へ送給できる、噴射媒体管室を具えていることを
特徴とする請求項１の煤吹装置。3. The rear end side of the lance tube, which is coaxially coupled to the rear end wall of the cylinder and moves inside, is encapsulated,
The soot-blowing device according to claim 1, further comprising an injection medium tube chamber capable of feeding the injection medium introduced from the injection medium supply pipe to the rear end of the lance pipe.
側が前記後端壁を貫通して前記シリンダ内を摺動する前
記ランス管の内部に遊嵌され、後端が前記噴射媒体供給
管に連結された噴射媒体送出し管を具えていることを特
徴とする請求項１の煤吹装置。4. The injection medium supply pipe is connected to a rear end wall of the cylinder, a front end side of which is loosely fitted inside the lance pipe which penetrates the rear end wall and slides in the cylinder. 2. A soot blowing device according to claim 1, comprising a jetting medium delivery tube connected to the.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25967593A JPH07113516A (en) | 1993-10-18 | 1993-10-18 | Soot blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25967593A JPH07113516A (en) | 1993-10-18 | 1993-10-18 | Soot blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07113516A true JPH07113516A (en) | 1995-05-02 |
Family
ID=17337347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25967593A Withdrawn JPH07113516A (en) | 1993-10-18 | 1993-10-18 | Soot blower |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07113516A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003082362A (en) * | 2001-09-17 | 2003-03-19 | Mitsubishi Heavy Ind Ltd | Slag removal unit |
| KR20150021583A (en) | 2013-06-21 | 2015-03-02 | 미쓰비시 마테리알 가부시키가이샤 | Equipment and method for processing combustibles |
| CN113551247A (en) * | 2021-07-27 | 2021-10-26 | 浙江莱梦德电力设备有限公司 | Soot blower based on sound wave and chemical ash removal and ash removal method thereof |
| CN116498983A (en) * | 2023-06-27 | 2023-07-28 | 山西毅诚科信科技有限公司 | Rake type soot blower with self-cleaning function |
-
1993
- 1993-10-18 JP JP25967593A patent/JPH07113516A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003082362A (en) * | 2001-09-17 | 2003-03-19 | Mitsubishi Heavy Ind Ltd | Slag removal unit |
| JP4633980B2 (en) * | 2001-09-17 | 2011-02-16 | 三菱重工業株式会社 | Slag remover |
| KR20150021583A (en) | 2013-06-21 | 2015-03-02 | 미쓰비시 마테리알 가부시키가이샤 | Equipment and method for processing combustibles |
| US9745643B2 (en) | 2013-06-21 | 2017-08-29 | Mitsubishi Materials Corporation | Method for treating combustible material and installation |
| CN113551247A (en) * | 2021-07-27 | 2021-10-26 | 浙江莱梦德电力设备有限公司 | Soot blower based on sound wave and chemical ash removal and ash removal method thereof |
| CN116498983A (en) * | 2023-06-27 | 2023-07-28 | 山西毅诚科信科技有限公司 | Rake type soot blower with self-cleaning function |
| CN116498983B (en) * | 2023-06-27 | 2023-08-29 | 山西毅诚科信科技有限公司 | Rake type soot blower with self-cleaning function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
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