JPH09285711A - Demister for steam drum - Google Patents

Demister for steam drum

Info

Publication number
JPH09285711A
JPH09285711A JP9999296A JP9999296A JPH09285711A JP H09285711 A JPH09285711 A JP H09285711A JP 9999296 A JP9999296 A JP 9999296A JP 9999296 A JP9999296 A JP 9999296A JP H09285711 A JPH09285711 A JP H09285711A
Authority
JP
Japan
Prior art keywords
demister
steam drum
demisters
unit
manhole
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Withdrawn
Application number
JP9999296A
Other languages
Japanese (ja)
Inventor
Tadaaki Nishimura
忠哲 西村
Takeshi Matsumura
武志 松村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP9999296A priority Critical patent/JPH09285711A/en
Publication of JPH09285711A publication Critical patent/JPH09285711A/en
Withdrawn legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To realize the demister with the members easily carried into a steam drum from a manhole and capable of being assembled in the drum without difficulty. SOLUTION: Each demister unit is formed with split demisters 1a to 1c and 1a' to 1c' obtained by splitting a strip demister having a width smaller than the inner diameter of a manhole in the longitudinal direction. The joints between the outer frames 7a, 7b and 8 formed by arranging the demister units in a line and the demister units and the joints between the demister units are formed by the respective inserting parts 5 and 6a to 6c and the inserted parts 4, 9 and 10a. Consequently, since the width of the demister unit is smaller than the inner diameter of the steam drum, the demister unit is easily carried into the drum, the unit is easily attached to the outer frame without bolt and nut since all the joints are of an insertion system, adjustment is not needed, and the cost is remarkably lowered.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は、ボイラーの蒸気ド
ラムに適用される蒸気ドラム用デミスタ装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steam drum demister device applied to a steam drum of a boiler.

【0002】[0002]

【従来の技術】デミスタ装置とは、網目を重ねたもの
で、それに蒸気を通して蒸気中の水分を除去する装置で
ある。
2. Description of the Related Art A demister device is a device in which meshes are superposed and steam is passed through the mesh to remove water in the steam.

【0003】従来のボイラーに適用される蒸気ドラム用
デミスタ装置は、図5に示すように蒸気ドラム2内に配
設されるものであるが、蒸気通過穴14を有するデミス
タの幅が広く、蒸気ドラム2のマンホール3から挿入で
きないため、図5及び図6に示すように幅を2分割し、
長手方向も人が持てる重量に分割したデミスタ01a〜
01fとして蒸気ドラム2内に取付けていた。
A conventional steam drum demister device applied to a boiler is arranged in the steam drum 2 as shown in FIG. 5, but the demister having the steam passage hole 14 has a wide width, Since it cannot be inserted from the manhole 3 of the drum 2, the width is divided into two as shown in FIG. 5 and FIG.
The demister 01a with the length divided into the weight that a person can carry
It was installed in the steam drum 2 as 01f.

【0004】この幅を2分割し、長手方向も適宜分割し
たデミスタ01a〜01fは、蒸気ドラム内に挿入した
後、組立て、取付けが行われるが、分割部はすべてボル
ト・ナット03により締付けられていた。なお、02は
止め金物である。
The demisters 01a to 01f, whose width is divided into two parts and which are also divided in the longitudinal direction, are assembled and mounted after being inserted into the steam drum, but all the divided parts are tightened with bolts and nuts 03. It was Reference numeral 02 is a stopper.

【0005】[0005]

【発明が解決しようとする課題】従来のボイラーの蒸気
ドラム用デミスタ装置においては、以下の課題があっ
た。
The conventional demister device for a steam drum of a boiler has the following problems.

【0006】1)デミスタを挿入する蒸気ドラムのマン
ホールが狭いため、その幅方向を2分割とする必要があ
り、長手方向も狭い空間での人手による作業を可能とす
るために適宜分割する必要がある。
1) Since the manhole of the steam drum into which the demister is inserted is narrow, it is necessary to divide the manhole into two parts in the width direction, and it is also necessary to divide the manhole appropriately in the longitudinal direction to allow manual work in a narrow space. is there.

【0007】2)分割されたデミスタの蒸気ドラム内に
おける接合は、全てボルト・ナットを用い、これを締付
けることにより行われるため、組立が難しく、調整に時
間がかゝる。
2) The joining of the divided demisters in the steam drum is performed by using bolts and nuts and tightening them. Therefore, the assembly is difficult and the adjustment takes time.

【0008】3)デミスタの接合部には多数のボルト・
ナットを必要とし、更に、それぞれのナットについては
廻り止め溶接を必要とするため、多くの作業時間を必要
である。
3) A large number of bolts at the joint of the demister
A large amount of work time is required because nuts are required, and rotation prevention welding is required for each nut.

【0009】4)デミスタを取付ける外側枠について
は、製作時の誤差、据付時の誤差があるため、デミスタ
の両端部と外側枠との寸法調整が必要であり、調整に時
間がかゝる。本発明は上記の課題を解決しようとするも
のである。
4) As for the outer frame to which the demister is mounted, there is an error in manufacturing and an error in installation. Therefore, it is necessary to adjust the dimensions of both ends of the demister and the outer frame, and it takes time to adjust. The present invention seeks to solve the above problems.

【0010】[0010]

【課題を解決するための手段】請求項1に記載の発明の
係る蒸気ドラム用デミスタ装置は、蒸気ドラムのマンホ
ールの内径よりも幅の狭い帯状のデミスタの長手方向が
複数に分割されて形成された分割デミスタによりそれぞ
れが形成されそれぞれの一端と両側端に差込み部が形成
され他端に被差込み部が形成された複数のデミスタ単
体、および同デミスタ単体が一列に配設されその内側に
被差込み部が設けられた一端側ビームとその内側に差込
み部が設けられた他端側ビームとそれぞれの内側に被差
込み部が設けられた2本の長手方向ビームとにより長方
形形状に形成された外側枠を備えたことを特徴としてい
る。
A steam drum demister device according to a first aspect of the present invention is formed by dividing a strip-shaped demister having a width narrower than an inner diameter of a manhole of the steam drum into a plurality of parts in the longitudinal direction. Separate demisters, each of which is formed by a split demister and has insertion portions formed at its one and both ends and an insertion portion formed at the other end, and a plurality of demisters arranged in line and inserted inside An outer frame formed in a rectangular shape by a beam on one end side provided with a portion, a beam on the other end provided with an insertion portion inside thereof, and two longitudinal beams each provided with an insertion portion inside thereof. It is characterized by having.

【0011】上記において、蒸気ドラム内へ搬入した後
の外側枠へのそれぞれのデミスタ単体の取付けは、ま
ず、一番目のデミスタ単体の一端と両側端の差込み部を
外側枠の一端側ビームの内側の被差込み部と長手方向ビ
ームの内側の被差込み部に差込んで、一番目のデミスタ
単体を外側枠に取付ける。
In the above, in order to attach each demister unit to the outer frame after carrying it into the steam drum, first, insert the insertion portions of one end and both ends of the first demister unit inside the beam on one end side of the outer frame. The first demister unit is attached to the outer frame by inserting the first demister into the inserted part and the inserted part inside the longitudinal beam.

【0012】二番目以降のデミスタ単体は、その前に取
付けられたデミスタ単体の他端の被差込み部にその一端
の差込み部を差込んで取付け、最後のデミスタ単体はそ
の前に取付けられたデミスタ単体の他端の被差込み部に
その一端の差込み部に差込んだ後、その他端の被差込み
部に外側枠の内側の差込み部を差込んで取付を完了す
る。
The second and subsequent demisters are installed by inserting the insertion part at one end into the insertion part at the other end of the demister installed before it, and the last demister is installed before it. After inserting the insertion portion at the other end of the single body into the insertion portion at the one end, the insertion portion inside the outer frame is inserted into the insertion portion at the other end to complete the attachment.

【0013】本発明においては、デミスタの幅を蒸気ド
ラムの内径よりも小さくしているため、デミスタ単体の
蒸気ドラム内への搬入が容易となり、全ての接合部を差
込み方式としてボルト・ナットを不要としたため、デミ
スタ単体の外側枠への取付けが容易となり、調整が不要
となって、大幅なコスト低減が可能となる。
In the present invention, since the width of the demister is made smaller than the inner diameter of the steam drum, it is easy to carry the demister alone into the steam drum, and all the joints are inserted so that bolts and nuts are unnecessary. Therefore, it becomes easy to attach the demister alone to the outer frame, no adjustment is required, and it is possible to significantly reduce the cost.

【0014】[0014]

【発明の実施の形態】本発明の実施の第1形態に係る蒸
気ドラム用デミスタ装置について、図1乃至図4により
説明する。
DESCRIPTION OF THE PREFERRED EMBODIMENTS A steam drum demister device according to a first embodiment of the present invention will be described with reference to FIGS.

【0015】図1乃至図3に示す本実施形態は、マンホ
ール3を有する蒸気ドラム2内に配設される蒸気ドラム
用デミスタ装置にあって、分割下段デミスタ1a,1
b,1cと分割上段デミスタ1a' ,1b' ,1c' と
フレーム6a,6b,6cによりそれぞれ形成されたデ
ミスタ単体11a,11b,11c、および同デミスタ
単体11a,11b,11cが一列に配設され一端側ビ
ーム7aと他端側ビーム7bと2本の長手方向ビーム8
により長方形形状に形成された外側枠を備えている。
The present embodiment shown in FIGS. 1 to 3 is a demister device for a steam drum arranged in a steam drum 2 having a manhole 3, in which divided lower demisters 1a, 1 are provided.
b, 1c, divided upper demisters 1a ', 1b', 1c 'and frames 6a, 6b, 6c, respectively, demister units 11a, 11b, 11c and demister units 11a, 11b, 11c arranged in a line. One end side beam 7a, the other end side beam 7b, and two longitudinal beams 8
The outer frame is formed in a rectangular shape.

【0016】上記デミスタ単体11a,11b,11c
は、図2に示すように、蒸気通過穴14を有しその幅が
マンホール3の内径より小さい帯状の上段と下段のデミ
スタがそれぞれ3分割されて形成された分割上段デミス
タ1a,1b,1cと分割下段デミスタ1a' ,1b'
,1c' が、コの字形状のフレーム6a,6b,6c
の下面と上面にそれぞれ断続溶接により取付けられるこ
とにより、それぞれが形成されている。
The demister unit 11a, 11b, 11c
2, as shown in FIG. 2, divided upper demisters 1a, 1b, 1c each having a vapor passage hole 14 and having a width smaller than the inner diameter of the manhole 3 are formed by dividing the upper and lower demisters into three parts. Split lower demisters 1a ', 1b'
, 1c 'are U-shaped frames 6a, 6b, 6c
They are formed by being intermittently attached to the lower surface and the upper surface of each of them.

【0017】また、上記一端側及び他端側ビーム7a,
7bと2本の長手方向ビーム8により形成された外側枠
は、図3(c)に示すように一端側ビーム7aの内側に
2枚のサポート4が上下に溶接により取付けられ、図3
(e)に示すように他端側ビーム7bの内側に1枚のサ
ポート5が溶接により取付けられ、図3(f),(g)
に示すように長手方向ビーム8の内側に取付板9が溶接
に取付けられ、この取付板9に相互に一定間隔を有する
取付金物10a,10b,10c,が溶接により取付け
られて形成されている。
The above-mentioned one end side beam 7a and the other end side beam 7a,
As shown in FIG. 3 (c), the outer frame formed by 7b and the two longitudinal beams 8 has two supports 4 vertically attached by welding inside the one end side beam 7a.
As shown in (e), one support 5 is attached to the inside of the beam 7b on the other end side by welding, and FIGS.
As shown in FIG. 5, a mounting plate 9 is attached to the inside of the longitudinal beam 8 by welding, and mounting hardware 10a, 10b, 10c, which are spaced apart from each other, are attached to the mounting plate 9 by welding.

【0018】上記において、デミスタ単体11a,11
b,11cの蒸気ドラム2内への搬入後の外側枠への取
付けは、次のように行う。まず、デミスタ単体11aを
外側枠の取付板9の下面に接触させながらスライドさ
せ、図3(f),(g)に示すようにデミスタ単体11
aのフレーム6aの両端を取付板9と取付金物10aの
間に差込み、更に、スライドさせて図3(c)に示すよ
うにフレーム6aの先端を2枚のサポート4の間に挿入
する。
In the above, the demisters 11a, 11
The attachment of b and 11c to the outer frame after carrying in the steam drum 2 is performed as follows. First, the demister unit 11a is slid while making contact with the lower surface of the mounting plate 9 of the outer frame, and as shown in FIGS.
Both ends of the frame 6a of "a" are inserted between the mounting plate 9 and the mounting hardware 10a, and further slid to insert the tip of the frame 6a between the two supports 4 as shown in FIG. 3 (c).

【0019】次に、デミスタ単体11bを取付けるが、
これも上記と同様にスライドさせてフレーム6bの両端
を取付板9と取付金物10bの間に差込んだ後、更にス
ライドさせて図3(d)に示すようにフレーム6bの先
端を上記デミスタ単体11aの他端の分割下段デミスタ
1aと分割上段デミスタ1a' の間に差込む。
Next, the demister unit 11b is mounted.
This is also slid in the same manner as above to insert both ends of the frame 6b between the mounting plate 9 and the mounting hardware 10b, and then further slid to move the tip of the frame 6b to the demister unit as shown in FIG. 3 (d). It is inserted between the divided lower demister 1a and the divided upper demister 1a 'at the other end of 11a.

【0020】最後のデミスタ単体11cの取付けは、デ
ミスタ単体11cをスライドさせてフレーム6cの先端
を上記デミスタ単体11bの他端の分割下段デミスタ1
bと分割上段デミスタ1b' の間に差込んだ後、デミス
タ単体11cを反対方向にわずかにスライドさせ、デミ
スタ単体11cの他端の分割下段デミスタ1cと分割上
段デミスタ1c' の間にサポート5を差込み、その後、
取付金物10cを取付板9に溶接により取付けて完了す
る。
The last demister unit 11c is attached by sliding the demister unit 11c so that the tip of the frame 6c is at the other end of the demister unit 11b.
After inserting it between b and the divided upper demister 1b ', slide the demister unit 11c slightly in the opposite direction, and install the support 5 between the divided lower demister 1c and the divided upper demister 1c' at the other end of the demister unit 11c. Plug in, then
The mounting hardware 10c is attached to the mounting plate 9 by welding to complete the process.

【0021】本実施形態においては、デミスタの幅を蒸
気ドラムのマンホールの内径より小さくして、幅方向を
分割することなくデミスタ単体の蒸気ドラム内への搬入
ができるものとし、全ての接合部を差込み方式としてボ
ルト・ナットの使用を全廃したため、組立てが容易とな
り、調整が不要となって大幅なコスト低減が可能となっ
た。
In the present embodiment, the width of the demister is made smaller than the inner diameter of the manhole of the steam drum so that the demister alone can be carried into the steam drum without dividing the width direction, and all joints are connected. Since the use of bolts and nuts has been completely eliminated as a plug-in method, assembly is easy and no adjustment is required, resulting in a significant cost reduction.

【0022】本発明の実施の第2形態に係る蒸気ドラム
用デミスタ装置について、図4により説明する。図4に
示す本実施形態に係るデミスタ装置は、上記第1実施形
態に係るデミスタ装置と次の点で異っている。
A steam drum demister device according to a second embodiment of the present invention will be described with reference to FIG. The demister device according to the present embodiment shown in FIG. 4 differs from the demister device according to the first embodiment in the following points.

【0023】即ち、それぞれのデミスタ単体12a,1
2b,12cはそれぞれ一段型の分割デミスタにより形
成されたものであり、図4(d)に示すようにデミスタ
単体12a,12bの他端に板厚分の段差が設けられ、
図4(e)に示すように外側枠の他端側ビームの内側に
2枚のサポート4が設けられたものである。
That is, each demister unit 12a, 1
2b and 12c are each formed by a single-stage divided demister, and as shown in FIG. 4 (d), a step corresponding to the plate thickness is provided at the other end of each demister unit 12a and 12b.
As shown in FIG. 4E, two supports 4 are provided inside the beam on the other end side of the outer frame.

【0024】本実施形態においても、上記第1実施形態
と同様にデミスタ単体を外側枠に取付けることができ、
デミスタ単体12a,12b,12cの搬入、組立てが
容易となった。
Also in this embodiment, the demister unit can be attached to the outer frame as in the first embodiment,
It is easy to carry in and assemble the demister units 12a, 12b, 12c.

【0025】[0025]

【発明の効果】本発明の蒸気ドラム用デミスタ装置は、
その幅がマンホールの内径より狭い帯状のデミスタの長
手方向が分割された分割デミスタによりそれぞれのデミ
スタ単体が形成され、それぞれのデミスタ単体が一列に
配設される外側枠とデミスタ単体の接合部と、デミスタ
単体同士の接合部がそれぞれ差込み部と被差込み部によ
り形成されたことによって、デミスタの幅が蒸気ドラム
の内径よりも小さいため、デミスタ単体の蒸気ドラム内
への搬入が容易となり、全ての接合部を差込み方式とし
てボルト・ナットを不要としたため、デミスタ単体の外
側枠への取付けが容易となり、調整が不要となって、大
幅なコスト低減が可能となる。
The steam drum demister device of the present invention comprises:
Each demister unit is formed by a divided demister whose width is narrower than the inner diameter of the manhole and the longitudinal direction of the demister is divided, and each demister unit is arranged in a line and the joint portion of the outer frame and the demister unit, The width of the demister is smaller than the inner diameter of the steam drum because the joints of the individual demisters are formed by the insertion part and the inserted part, respectively. Since the parts are plugged in and no bolts or nuts are needed, it is easy to attach the demister to the outer frame, and no adjustment is required, resulting in a significant cost reduction.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の実施の第1形態に係るデミスタ装置を
内蔵する蒸気ドラムの説明図である。
FIG. 1 is an explanatory diagram of a steam drum including a demister device according to a first embodiment of the present invention.

【図2】上記第1実施形態に係るデミスタ装置を形成す
るデミスタ単体の説明図で、(a)は平面図、(b)は
(a)のA−A矢視図である。
2A and 2B are explanatory views of a single demister forming the demister device according to the first embodiment, FIG. 2A is a plan view, and FIG. 2B is a view taken along the line AA of FIG.

【図3】上記第1実施形態に係るデミスタ装置の説明図
で、(a)は側面図、(b)は(a)のB−B矢視図、
(c)は(a)のC部の拡大図、(d)は(a)のD部
の拡大図、(e)は(a)のE部の拡大図、(f)は
(a)のF−F矢視図、(g)は(f)のG部、H部の
拡大図である。
3A and 3B are explanatory views of the demister device according to the first embodiment, in which FIG. 3A is a side view, FIG.
(C) is an enlarged view of C part of (a), (d) is an enlarged view of D part of (a), (e) is an enlarged view of E part of (a), (f) is of (a). F-F arrow view, (g) is an enlarged view of G part and H part of (f).

【図4】本発明の実施の第2形態に係るデミスタ装置の
説明図で、(a)は側面図、(b)は(a)のI−I矢
視図、(c)は(a)のJ部の拡大図、(d)は(a)
のK部の拡大図、(e)は(a)のL部の拡大図、
(f)は(a)のM−M矢視図、(g)は(f)のN
部、P部の拡大図である。
4A and 4B are explanatory views of a demister device according to a second embodiment of the present invention, in which FIG. 4A is a side view, FIG. 4B is a view taken along the line I-I of FIG. 4A, and FIG. Enlarged view of part J of (d) is (a)
An enlarged view of the K portion of (a), an enlarged view of the L portion of (a),
(F) is an MM arrow view of (a), (g) is N of (f).
FIG. 3 is an enlarged view of a portion and a portion P.

【図5】従来のデミスタ装置を内蔵する蒸気ドラムの説
明図である。
FIG. 5 is an explanatory diagram of a steam drum incorporating a conventional demister device.

【図6】従来のデミスタ装置の説明図で、(a)は平面
図、(b)は(a)のQ−Q矢視図である。
6A and 6B are explanatory views of a conventional demister device, FIG. 6A is a plan view, and FIG. 6B is a view taken along the line Q-Q of FIG.

【符号の説明】[Explanation of symbols]

1a〜1c 分割下段デミスタ 1a' 〜1c' 分割上段デミスタ 2 蒸気ドラム 3 マンホール 4,5 サポート 6a〜6c フレーム 7a 一端側ビーム 7b 他端側ビーム 8 長手方向ビーム 9 取付板 10a〜10c 取付金物 11a〜11c デミスタ単体 12a〜12c デミスタ単体 14 蒸気通過穴 1a to 1c Split lower demister 1a 'to 1c' Split upper demister 2 Steam drum 3 Manhole 4,5 Support 6a to 6c Frame 7a One end side beam 7b Other end side beam 8 Longitudinal beam 9 Mounting plate 10a to 10c Mounting hardware 11a to 11c Single demister 12a to 12c Single demister 14 Steam passage hole

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 蒸気ドラムのマンホールの内径よりも幅
の狭い帯状のデミスタの長手方向が複数に分割されて形
成された分割デミスタによりそれぞれが形成されそれぞ
れの一端と両側端に差込み部が形成され他端に被差込み
部が形成された複数のデミスタ単体、および同デミスタ
単体が一列に配設されその内側に被差込み部が設けられ
た一端側ビームとその内側に差込み部が設けられた他端
側ビームとそれぞれの内側に被差込み部が設けられた2
本の長手方向ビームとにより長方形形状に形成された外
側枠を備えたことを特徴とする蒸気ドラム用デミスタ装
置。
1. A strip demister having a width narrower than the inner diameter of a manhole of a steam drum is divided into a plurality of divided demisters in the longitudinal direction, and each of the demisters has an insertion portion formed at one end and both ends thereof. A plurality of demisters each having a plugged portion formed at the other end, and one beam having the plugged portions provided inside the demisters and the other end having the plugged portion inside the beam Side beams and plugged parts inside each side 2
A steam drum demister device comprising an outer frame formed in a rectangular shape by a longitudinal beam of a book.
JP9999296A 1996-04-22 1996-04-22 Demister for steam drum Withdrawn JPH09285711A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9999296A JPH09285711A (en) 1996-04-22 1996-04-22 Demister for steam drum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9999296A JPH09285711A (en) 1996-04-22 1996-04-22 Demister for steam drum

Publications (1)

Publication Number Publication Date
JPH09285711A true JPH09285711A (en) 1997-11-04

Family

ID=14262142

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9999296A Withdrawn JPH09285711A (en) 1996-04-22 1996-04-22 Demister for steam drum

Country Status (1)

Country Link
JP (1) JPH09285711A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1417994A1 (en) * 2002-11-05 2004-05-12 Axair AG Droplet separator for air flow channel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1417994A1 (en) * 2002-11-05 2004-05-12 Axair AG Droplet separator for air flow channel

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