JPH0450889Y2 - - Google Patents
Info
- Publication number
- JPH0450889Y2 JPH0450889Y2 JP1986129658U JP12965886U JPH0450889Y2 JP H0450889 Y2 JPH0450889 Y2 JP H0450889Y2 JP 1986129658 U JP1986129658 U JP 1986129658U JP 12965886 U JP12965886 U JP 12965886U JP H0450889 Y2 JPH0450889 Y2 JP H0450889Y2
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- blocks
- connecting member
- denitrification
- catalyst blocks
- 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
- 239000003054 catalyst Substances 0.000 claims description 55
- 230000008602 contraction Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000008646 thermal stress Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Physical Or Chemical Processes And Apparatus (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は脱硝装置に係り、特に触媒ブロツクを
収容する脱硝反応器の保持に好適な脱硝装置に関
する。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a denitrification device, and particularly to a denitrification device suitable for holding a denitrification reactor containing a catalyst block.
（従来の技術）
第４図は脱硝反応器１の断面図、第５図は従来
技術の脱硝反応器１内に収容される触媒ブロツク
２の斜視図である。触媒ブロツク２は予め最小単
位である触媒ユニツト７が複数個組み込まれて一
体のブロツクを構成するもので、この触媒ブロツ
ク２を排ガスの脱硝性能上必要な数だけ脱硝反応
器１内に上下・前後・左右方向に配列収容する。
収容された触媒ブロツク２群は支持台３上に載置
される。触媒反応器１の器枠内側周囲には断熱材
４が設けられ、内部を保温する構造となつてい
る。またNOxを含んだ排ガスは第４図矢印Ａ方
向から流入し、触媒ブロツク２群を通過する際触
媒の脱硝作用によつて脱硝処理される。(Prior Art) FIG. 4 is a sectional view of the denitrification reactor 1, and FIG. 5 is a perspective view of the catalyst block 2 accommodated in the denitrification reactor 1 of the prior art. The catalyst block 2 is a unit in which a plurality of catalyst units 7, which are the minimum units, are assembled in advance to form an integrated block.The catalyst block 2 is installed in the denitrification reactor 1 up and down, front and rear, in the number necessary for the exhaust gas denitrification performance. - Arrange and accommodate in the left and right direction.
The two groups of accommodated catalyst blocks are placed on a support stand 3. A heat insulating material 4 is provided around the inside of the casing of the catalytic reactor 1 to keep the inside warm. Further, the exhaust gas containing NO x flows in from the direction of arrow A in Fig. 4, and is denitrated by the denitration action of the catalyst when passing through the second group of catalyst blocks.
従来、脱硝反応器１は多数の触媒ブロツク２を
配列収容しているため、地震などの振動によつて
各触媒ブロツク２相互間の位置がずれ、遂には崩
れ落ちるという危険性がある。この対策として
は、各触媒ブロツク２相互間の第５図符号Ｗで示
す部分を溶接することによつて一体構造となし、
溶接触媒ブロツク２群は支持台３と脱硝反応器１
の構成部材に設けたストツパ６によつて各触媒ブ
ロツク間のずれを防止しようとしている。 Conventionally, the denitrification reactor 1 accommodates a large number of catalyst blocks 2 in an array, so there is a risk that the positions of the catalyst blocks 2 may shift due to vibrations such as an earthquake, and eventually collapse. As a countermeasure for this, the portions indicated by reference numeral W in FIG. 5 between each catalyst block 2 are welded to form an integral structure.
The second group of welded catalyst blocks includes a support stand 3 and a denitrification reactor 1
A stopper 6 provided on the structural member is used to prevent displacement between the catalyst blocks.
（考案が解決しようとする問題点）
上記従来構造においては上下・前後・左右の各
ブロツク２相互間が全て溶接による結合のため、
溶接作業工数が増加し、また触媒ユニツト７ない
し触媒ブロツク２の交換が必要となつた場合に
は、再度触媒ブロツクごとに分解しなければなら
ないという問題点があつた。また一体構造物全体
では重量が過大となるため、脱硝反応器１内への
搬入、搬出の際の作業が困難になるという問題点
が生じている。特に重要なのは起動・停止時など
に排ガスによる温度変化があるので、脱硝反応器
１内で触媒ブロツク２の位置により温度が相違
し、各触媒ブロツク２間に熱による伸縮差にため
に熱応力が発生し、溶接部に亀裂が発生したり、
このため各触媒ブロツク２相互間の結合が解除さ
れ、変形するという問題点があつた。本発明はこ
れらの問題点に鑑み、脱硝反応器１内の触媒ブロ
ツク２の伸縮差を吸収して熱応力の発生を防止す
るとともに、触媒ブロツク２間にずれを生じさせ
ないような、脱硝反応器１における収容構造を備
えた脱硝装置を提供することを目的としている。(Problems to be solved by the invention) In the above conventional structure, the upper and lower, front and rear, left and right blocks are all connected by welding.
There is a problem in that the number of welding work increases, and when it becomes necessary to replace the catalyst unit 7 or the catalyst block 2, the catalyst blocks must be disassembled again. Furthermore, since the weight of the entire integrated structure is excessive, there is a problem in that it becomes difficult to carry it into and out of the denitrification reactor 1. What is particularly important is that there are temperature changes due to exhaust gas when starting and stopping, so the temperature differs depending on the position of the catalyst block 2 in the denitrification reactor 1, and thermal stress occurs between each catalyst block 2 due to the difference in expansion and contraction due to heat. This may cause cracks in the welded area,
For this reason, there was a problem in that the bonds between the catalyst blocks 2 were released and the catalyst blocks 2 were deformed. In view of these problems, the present invention provides a denitrification reactor that absorbs the expansion and contraction difference between the catalyst blocks 2 in the denitrification reactor 1, prevents the generation of thermal stress, and does not cause misalignment between the catalyst blocks 2. An object of the present invention is to provide a denitrification device equipped with the housing structure according to No. 1.
（問題点を解決するための手段）
上記の目的はたとえば各触媒ブロツクの上下間
に連結部材を介在させると共に、触媒ブロツクの
外枠上部板に付設した凸部と、外枠下部板に付設
した凹部とを上記連結部材と共に係合させること
によつて達成される。(Means for solving the problem) The above purpose is, for example, to interpose a connecting member between the upper and lower sides of each catalyst block, and to connect a convex part attached to the outer frame upper plate of the catalyst block and a connecting member attached to the outer frame lower plate. This is accomplished by engaging the recess with the connecting member.
（作用）
上下間の触媒ブロツクは凸部と凹部との係合に
より、またこの係合部分は上記連結部材と共に係
合していることにより、上下・前後・左右の各触
媒ブロツクが互いに連結されるので、触媒ブロツ
ク全体は一体構造として構成され、しかも各触媒
ブロツクは位置の相違による熱伸縮の差が生じて
も、上記係合構造は溶接構造のように、熱応力に
よるずれや変形を発生させることがない。(Function) The upper and lower catalyst blocks are connected to each other by the engagement between the convex part and the concave part, and by the engagement of this engaging part with the above-mentioned connecting member. Therefore, the entire catalyst block is constructed as an integral structure, and even if there is a difference in thermal expansion and contraction due to the difference in position of each catalyst block, the above-mentioned engagement structure does not cause displacement or deformation due to thermal stress like a welded structure. I have nothing to do.
（実施例）
本考案の一実施例を第１〜３図を用いて説明す
る。第１図は本考案により連結された触媒ブロツ
ク２群の一部を示す斜視図であつて、以後上下方
向を矢印Ｚ方向、左右方向を矢印Ｘ方向、前後方
向を矢印Ｙ方向で示す。Ｚ方向に連なる２つの触
媒ブロツク２群の間に連結部材９，１０を配置し
ている。同図で明らかなように本考案では溶接に
よる連結は全くなされていない。第２図は第１図
Ｃ部の分解斜視図であつて、触媒ブロツク２11，
２12の外枠上部板１１，１２に設けた凸部８11，
８12が連結部材９の穴１９11，１９12を貫通して
触媒ブロツク２21，２22の外枠下部板２１，２２
の凹部２１ａ（図示せず），２２ａと係合する。こ
のように連結部材９を介することによつて触媒ブ
ロツク２11，２12のＸ，Ｙ方向および触媒ブロツ
ク２11，２21のＺ方向に対するずれを拘束するこ
とができる。第３図は第１図Ｂ−Ｂ断面図であつ
て、Ｙ方向の触媒ブロツク２間の連結部分の断面
を示す。連結部材９は両端部の触媒ブロツクの連
結用、連結部材１０は両端以外の部分の連結用で
ある。また連結部材９，１０とも触媒ブロツク２
のＸ方向の幅寸法の整数倍の長さを有することが
好ましく、これによつて触媒ブロツク２間に隙間
を生ずることがなく、したがつて未処理ガスの漏
れは発生しない。連結部材９，１０は第１〜２図
のようにＸ方向に長手のもののみでなく、Ｙ方向
に長手のものでもよく、また図示のような帯状板
でなく、触媒ブロツク２のＸ−Ｙ平面寸法の整数
倍の寸法を有する板状であつてもよい。要するに
触媒ブロツク２群の係合部の間に介在し、上記凹
部と凸部とともに一体に係合する機能を有するも
のであればよい。またこれまで述べたものは連結
部材９，１０は水平面すなわちＸ−Ｙ平面に置か
れているものを示すが、垂直面すなわちＸ−Ｚ平
面、もしくはＹ−Ｚ平面に連結部材を設けるよう
に係合各部材を配設してもよいことは勿論であ
る。(Example) An example of the present invention will be described using FIGS. 1 to 3. FIG. 1 is a perspective view showing a part of two groups of catalyst blocks connected according to the present invention, in which the vertical direction is indicated by arrow Z, the left-right direction is indicated by arrow X, and the front-rear direction is indicated by arrow Y. Connecting members 9 and 10 are arranged between two groups of two catalyst blocks that are continuous in the Z direction. As is clear from the figure, no connection is made by welding in the present invention. FIG. 2 is an exploded perspective view of section C in FIG. 1, showing the catalyst blocks 2 11 ,
Convex portions 8 11 provided on the outer frame upper plates 11 and 12 of 2 12 ,
8 12 pass through the holes 19 11 , 19 12 of the connecting member 9 and connect to the lower outer frame plates 21 , 22 of the catalyst blocks 2 21 , 2 22 .
It engages with the recesses 21a (not shown) and 22a of. By interposing the connecting member 9 in this way, it is possible to restrain the displacement of the catalyst blocks 2 11 and 2 12 in the X and Y directions and the displacement of the catalyst blocks 2 11 and 2 21 in the Z direction. FIG. 3 is a sectional view taken along the line B--B in FIG. 1, and shows a cross section of the connecting portion between the catalyst blocks 2 in the Y direction. The connecting member 9 is used to connect the catalyst blocks at both ends, and the connecting member 10 is used to connect the parts other than both ends. In addition, both the connecting members 9 and 10 are connected to the catalyst block 2.
It is preferable to have a length that is an integral multiple of the width dimension in the X direction of the catalyst block 2, so that no gap is created between the catalyst blocks 2, and therefore no leakage of untreated gas occurs. The connecting members 9 and 10 are not only long in the X direction as shown in FIGS. 1 and 2, but may also be long in the Y direction. It may be plate-shaped with a dimension that is an integral multiple of the plane dimension. In short, any material may be used as long as it is interposed between the engaging portions of the two groups of catalyst blocks and has the function of engaging integrally with the recessed portion and the convex portion. Furthermore, although the connection members 9 and 10 described above are placed on a horizontal plane, that is, the X-Y plane, the connection members may be placed on a vertical plane, that is, the X-Z plane, or the Y-Z plane. Of course, each member may be provided in combination.
第６図は本考案の他の実施例を示す図で、各触
媒ブロツク２間に配設された連結部材９をＺ方向
に配置した連結部材１５と結合し一体化を強めた
例である。触媒ブロツク２群の上部にストツパ１
７を設けて触媒反応器１全体を支持している。 FIG. 6 shows another embodiment of the present invention, in which a connecting member 9 disposed between each catalyst block 2 is connected to a connecting member 15 disposed in the Z direction to strengthen the integration. Stopper 1 is installed above the 2nd group of catalyst blocks.
7 is provided to support the entire catalytic reactor 1.
（考案の効果）
本考案の実施により触媒ブロツクを一体構造と
することにより、排ガスの温度変化による各触媒
ブロツク間の伸縮差による熱応力と、振動特に地
震による上下・前後・左右方向に対する各触媒ブ
ロツク間のずれや変形を防止することが可能とな
り、触媒ブロツクの交換や搬入、搬出が容易にな
るなどの顕著な効果を奏するものである。(Effects of the invention) By implementing the present invention, the catalyst block is made into an integral structure, which reduces the thermal stress due to the expansion and contraction difference between each catalyst block due to temperature changes in exhaust gas, and the effects of vibrations, especially earthquakes, on the vertical, longitudinal, and lateral directions of each catalyst. This makes it possible to prevent the blocks from shifting or deforming, and has the remarkable effect of making it easier to replace, carry in, and take out the catalyst blocks.
第１図は本考案の脱硝装置の要部の斜視図、第
２図は第２図の一部の分解斜視図、第３図は第１
図の一部断面図、第４図は脱硝反応器の側断面
図、第５図は従来の脱硝装置の要部斜視図、第６
図は本考案の他の実施例を示す正面図である。
１……脱硝反応器、２……触媒ブロツク、３…
…支持台、４……断熱材、６……ストツパ部材、
７……触媒ユニツト、８……凸部、９，１０……
連結部材、１１，１２……外枠上部板、１５……
連結部材、１７……ストツパ、２１，２２……外
枠下部板、２２ａ……凹部。
Figure 1 is a perspective view of the main parts of the denitrification device of the present invention, Figure 2 is an exploded perspective view of a part of Figure 2, and Figure 3 is the
4 is a side sectional view of the denitrification reactor, FIG. 5 is a perspective view of the main parts of a conventional denitration equipment, and FIG.
The figure is a front view showing another embodiment of the present invention. 1... Denitrification reactor, 2... Catalyst block, 3...
...Support stand, 4...Insulating material, 6...Stopper member,
7... Catalyst unit, 8... Convex portion, 9, 10...
Connection member, 11, 12... Outer frame upper plate, 15...
Connection member, 17...stopper, 21, 22...outer frame lower plate, 22a...recess.
Claims (1)
ブロツクと、この触媒ブロツクの複数個を上下方
向及び水平方向に連結し機枠内に収容する脱硝反
応器を備え、この脱硝反応器に対して水平定方向
に排ガスを通過させて脱硝を行なう脱硝装置にお
いて、 互いに対接する触媒ブロツクの両面が係合可能
なように一対の凸部と凹部を備える第１の係合部
と、 水平方向に複数のブロツクにまたがつて前記触
媒ブロツクの間に介在する第２の係合部を備える
連結部材とを有し、 前記第１、第２の係合部の係合により前記複数
個の触媒ブロツクを一体的に保持することを特徴
とする脱硝装置。[Claims for Utility Model Registration] A denitrification reactor comprising a catalyst block constituted by a plurality of catalyst units, and a denitrification reactor in which a plurality of the catalyst blocks are connected vertically and horizontally and housed in a machine frame, In this denitrification device, which performs denitration by passing exhaust gas in a horizontal direction through the denitrification reactor, a first engagement device is provided with a pair of convex portions and a concave portion so that both surfaces of the catalyst blocks facing each other can be engaged with each other. and a connecting member including a second engaging portion interposed between the catalyst blocks and spanning a plurality of blocks in the horizontal direction, and the connecting member includes a second engaging portion interposed between the catalyst blocks, and the connecting member is provided with a second engaging portion that extends horizontally across a plurality of blocks and is interposed between the catalyst blocks. A denitrification device characterized in that the plurality of catalyst blocks are integrally held.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986129658U JPH0450889Y2 (en) | 1986-08-26 | 1986-08-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986129658U JPH0450889Y2 (en) | 1986-08-26 | 1986-08-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6335426U JPS6335426U (en) | 1988-03-07 |
| JPH0450889Y2 true JPH0450889Y2 (en) | 1992-12-01 |
Family
ID=31026425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986129658U Expired JPH0450889Y2 (en) | 1986-08-26 | 1986-08-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0450889Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7356367B2 (en) * | 2020-02-06 | 2023-10-04 | 三菱重工業株式会社 | Catalytic reactor with ash accumulation prevention function |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5824323A (en) * | 1981-08-06 | 1983-02-14 | Babcock Hitachi Kk | Denitrating device |
-
1986
- 1986-08-26 JP JP1986129658U patent/JPH0450889Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5824323A (en) * | 1981-08-06 | 1983-02-14 | Babcock Hitachi Kk | Denitrating device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6335426U (en) | 1988-03-07 |
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