JP3749044B2 - Boiler water pipe protection pipe block body mounting bracket - Google Patents

Boiler water pipe protection pipe block body mounting bracket Download PDF

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Publication number
JP3749044B2
JP3749044B2 JP20979999A JP20979999A JP3749044B2 JP 3749044 B2 JP3749044 B2 JP 3749044B2 JP 20979999 A JP20979999 A JP 20979999A JP 20979999 A JP20979999 A JP 20979999A JP 3749044 B2 JP3749044 B2 JP 3749044B2
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block body
mounting bracket
base
water pipe
boiler water
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JP2001041405A (en
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智彦 原
嘉彦 後藤
泰男 伊藤
徹 山岸
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Nichias Corp
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Nichias Corp
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Description

【０００１】
【発明の属する技術分野】
本発明は、焼却炉などを構成するボイラー内の水管保護用管ブロック体の取付け金具に係り、特に、ブロック体の取付け施工の容易さと、水管の振動や歪みにより生ずるブロック体への応力負荷を緩和してブロック体の破壊を防止することを主な目的とするボイラー水管保護用管ブロック体の取付け金具に関するものである。
【０００２】
【従来の技術】
焼却炉などの炉壁に水管を配設し、焼却時に発生する熱と水管内を流れる流体との熱交換により流体を加熱して蒸気を発生させて発電などに利用するボイラー水管保護用管ブロック体には、耐火性、耐食性に優れ、かつ比較的熱伝導率の高いＳｉＣなどを主成分とする構成の焼成耐火物が用いられている。
【０００３】
炉壁を構築するには、ブロック体をフィンにボルトで支持させるボルト支持構造と、フィンに設けた金物フックをフック穴に嵌め込ませるフック支持構造により、順次ブロック体を積層して垂直状或いは傾斜状の炉壁を構築する工法が採用されている。
【０００４】
上記構築工法は、不定形耐火物を用いるライニング工法に比べ、次の利点が挙げられる。
（１）ブロック体は、フィンにボルト、或いはフックによる支持であり、その取付け、取外しが容易となり、施工効率が向上する。
（２）ブロック体による均一なライニング層が構築でき、その熱交換率が優れる。
（３）部分補修が該当部分のブロック体の交換でよくなり、その補修作業が簡素化される。
【０００５】
ところで、上述するボルト支持構造には、例えば、図１０に示す構造のブロック体が知られている（特開平４−２２７４０１号公報）。この従来例によれば、ブロック体１は、内面（前面）２がボイラー内の少なくとも１本の管３の前面を覆うリブ（突出部）４を有する窪んだ輪郭の窪み部５を備え、外面６には中心にネジ付きのスタッドボルト７が通るボルト穴８が設けられ、且つこのボルト穴８に向かって上下端縁から徐々に肉厚となる前記内面２に膨らむ中央部９を備える構成からなり、前記ボルト７の先端部を管３，３をつなぐ膜（フィン）１０に溶接などで固定している。図中、１１は断熱材、１２は板金である。
【０００６】
【発明が解決しようとする課題】
しかしながら、従来例のボルト支持構造には、次のような問題点がある。
（１）ブロック体１は、その内面２にボルト７のボルト穴８に向かって徐々に肉厚となって膨らむ中央部９が構成されるが、フィン１０の幅が狭くなると、中央部９の幅をより狭く、シャープなものとしなければならず、そのため、金型が複雑になったり、安価で均一な品質のブロック体１の成形が難しい。また、中央部９が破壊しやすくなる。
（２）施工の際、ボルト７を取付けるフィン１０の取付け幅が狭くなると、ボルト７の溶接などの取付けに手間がかかり溶接不良の原因となったり、ボルト７の締付け時にボルト穴８周辺の中央部９が破壊することがある。
（３）ブロック体１が、全体的に直接フィン１０に接触しているため、ボイラー内水管３の振動や歪みを直接受け易く、ブロック体１が破壊する原因となる。また水管３の熱による膨張収縮の影響をブロック体１が直接受け、ブロック体１が破壊する原因となる。
（４）ボルト７の取付け位置がズレ易く、隣接し合うブロック体１，１間の目地を等間隔に確保することが難しく、目地部が亀裂する原因となる。
【０００７】
本発明は、上記課題を解決したものであり、その目的は、安価で均一な品質のブロック体であり、フィンの取付け幅が狭くても取付け金具の取付け施工が容易に行え、水管の振動や歪み、膨張収縮により生ずるブロック体への応力負荷を緩和してブロック体の破壊を防止でき、さらに、隣接し合うブロック体の目地を等間隔に確保できるように創作したボイラー水管保護用管ブロック体の取付け金具を提供するものである。
【０００８】
【課題を解決するための手段】
上記目的を達成するため、本発明に係る第１の発明は、内面側が半円弧状の断面を有するボイラー水管の被覆部間に平行に上下方向に延び、且つ中心部に内面側と外面側に連なる挿通穴を有する膨らんだ連結部を備え、外面側が平らに鉛直状となるＳｉＣなどを主成分とするボイラー水管保護用管ブロック体を固定する取付け金具であって、水管を連ねるフィンに溶接させる基台と、前記基台の上面に起立させたブロック体の挿通穴に挿通させるネジ山を切った円柱状の棒状体を備え、基台の幅は棒状体の直径よりも小さく、基台の長さは基台の幅よりも大きい幅狭な直方体からなることを特徴とするものである。
【０００９】
第２の発明は、長尺な基台に所定の間隔をおいて、ネジ山を切った複数の円柱状の棒状体を連続状に起立させたことを特徴とし、第３の発明は、長尺な基台の上面に所定の間隔をおいて凸部を設け、前記凸部にネジ山を切った円柱状の棒状体を起立させたことを特徴とするものである。第４の発明は、取付け金具の材質が鉄鋼材又はステンレス鋼材などの金属材であることを特徴とするものである。
【００１０】
【作用】
本発明の第１の発明によれば、フィンの取付け幅が狭い場合でも、その取付け金具は、基台の幅狭な長手方向を水管と平行に沿わせてフィンに接触面を溶接させることによりフィンに強固に固定できる。すなわち、フィンの取付け幅がネジ山を切った円柱状の棒状体の直径より小さくてもブロック体を確実に固定することができる。また、フィンの取付け幅が狭くても、ブロック体の中央部を幅が狭くシャープな構造としなくてもよい。
【００１１】
第２の発明によれば、その取付け位置が正確となるため、ブロック体の取付け位置が正しくなり、隣接し合うブロック体間の目地の確保が容易となる。第３の発明によれば、基台とブロック体との接触面積が部分的な構造となる。
【００１２】
【発明の実施の形態】
本発明の実施形態を図面を参照して説明する。図１は、本発明に係る取付け金具の第１例を示す斜視図、図２は、同取付け金具を配したブロック体を示す説明用平面図、図３は、同使用状態を示す説明用縦断面図、図４は、同使用状態を示す説明用横断面図、図５は、取付け金具の第２例を示す斜視図、図６は、取付け金具の第３例を示す斜視図、図７は、同取付け金具を配したブロック体を示す説明用平面図、図８は、同使用状態を示す説明用縦断面図、図９は、同使用状態を示す説明用横断面図である。
【００１３】
初めに、図１に示す第１例の取付け金具２０を説明する。この取付け金具２０は、幅狭な直方体からなる基台２１の上面２２の中央部に円柱状の棒状体２３を起立させる構成としてある。この例では、この棒状体２３は、基台２１の上面２２の中央部において、基端部２４が基台２１の略中心位置に埋設させて溶接などで強固に固着してあるが、この例に限らず、棒状体２３の基端部２４を基台２１の上面２２に直接溶接などで棒状体２３を固着してもよい。また、棒状体２３は、ネジ山２５が切ってある。
【００１４】
上記する例では、図示するように棒状体２３は、その直径が基台２１の幅より大きく構成してある。棒状体２３の径は、特に限定する必要はないが、取付け強度を考えるとある程度の径が必要である。一般にフィンの取付け幅が狭い場合、棒状体２３の直径は、基台２１の幅より大きくなる。本発明では、基台２１の幅が狭くても、基台２１の長さを長くし、接触面積を大きくすることでフィンへの固定を強固にできる。なお、両者とも同じ径或いは何れか一方が小径であってもよい。また、この取付け金具２０の材質は、鋼鉄材やステンレス鋼材など金属材を任意に選択できる。
【００１５】
次に、この取付け金具２０の使用例を図２〜図４により説明する。使用するブロック体２７は、図２に示すように正面形状が長方形からなり、内面２８に水管２９，２９を並列状に被覆するように断面半円弧状の被覆部３０，３０が上下方向に平行に形成され、両端部を突出部３１，３１としてある。外面３２は平らな鉛直状に形成されている。
【００１６】
また、上記ブロック体２７の被覆部３０，３０間に、被覆部３０，３０と平行に上下方向に延び、且つ中心部に挿通穴３３を有する膨らんだ連結部３４が形成されている。この挿通穴３３は、ブロック体２７の内面２８と、外面３２側に設けた円形状の金具収納部３５にそれぞれ連なっている。
【００１７】
ブロック体１の材質は、ＳｉＣ，Ｓｉ３Ｎ４を主成分とするものが好ましく、図示のように２連構成に限らず、例えば、３連以上に構成することができる。
【００１８】
そして、ボイラーの水管２９，２９，…を連結しているフィン３８の炉内面側に、基台２１の長手方向を水管２９と平行に沿わせてフィン３８と基台２１の接触面に溶接を施して溶着させた取付け金具２０が所定の上下間隔をおいて複数固定されている。
【００１９】
上記する基台２１をフィン３８に溶着した取付け金具２０に対し、ブロック体２７は、内面２８が鉛直状になるように揃えて各被覆部３０，３０を水管２９，２９に被せて取付け金具２０の棒状体２３をブロック体２７の挿通穴３３に挿通し、水管２９，２９，…の一部をブロック体２７に嵌合させる。さらに、棒状体２３のネジ山２５にナット２６を螺合させてブロック体２７をフィン３８に固定する。こうして、順次ブロック体２７，２７，…を積層して所定角度の炉壁３９が構築される。なお、ブロック体２７の金具収納部３５には、ブロック体２７と同じ材質で構成された蓋４０を設けると、取付け金具２０及びナット２６の腐食劣化を防ぐことができる。
【００２０】
図５に示す第２例の取付け金具４５は、上述する第１例の取付け金具２０が単体構成であるのに対し、長く延びる長尺な基台４６に所定の間隔をおいて複数の棒状体４７を連続状に起立させた構成に特徴がある。この場合、図６に示す第３例の取付け金具４８のように、長尺な基台４６の上面に所定の間隔をおいて連続状に凸部４９を設け、この凸部４９に棒状体４７を起立させると、基台４６とブロック体２７との接触面積を部分的なものとすることができる。なお、その他は同じ構成としてある。
【００２１】
このような連続状に棒状体４７，４７，…を起立させた取付け金具４５，４８により、ブロック体２７の取付け位置は、施工図に従って正確に定まることが可能となり、隣接し合うブロック体２７，２７間の目地の確保が容易となる。従って、第３例の取付け金具４８の使用例を示す図７〜図９には、第１例の取付け金具２０の使用例と同じ符号を付して、その説明は省略する。
【００２２】
上述する第１〜３例の取付け金具２０，４５，４８を使用して構築される炉壁３９は、フィン３８の取付け幅が狭くても取付け金具２０，４５，４８の基台２１が幅狭な直方体からなるため、その溶接を容易且つブロック体２７の荷重に耐え得る強固なものとなる。また、ブロック体２７の支持は、取付け金具２０，４８によれば、基台２１または凸部４９の上面と棒状体２３，４７の２点のみとなるため、水管２９の振動や歪みにより生ずるブロック体２７への応力負荷を緩和し、特に、連結部３４近傍のブロック体２７の破壊が防止できる。
【００２３】
【発明の効果】
以上構成の本発明によれば、次の効果がある。
（１）使用するブロック体の連結部（中央部）に幅が狭くてシャープな突出部を形成する必要がなく、よって成形金型が複雑ではなく、安価で均一な品質のブロック体が供給できる。また、破壊しにくいものが得られる。
（２）フィンの取付け幅が狭くても、取付け金具の基台は幅狭な直方体形状であるため、その溶接が可能であり、その強度もブロック体の荷重に耐え得るように強固な構成となる。
（３）ブロック体の支持は、取付け金具の基台と棒状体の２点のみとなるため、水管の振動や歪み、さらには、熱膨張収縮により生ずるブロック体への応力負荷を緩和し、連結部近傍の破壊が防止できる。
（４）特に、連続状の取付け金具では、その取付け位置が正確となるため、ブロック体の取付け位置が正しくなり、隣接し合うブロック体間の目地の確保が容易となり、目地部の亀裂が防止できる。
【図面の簡単な説明】
【図１】本発明に係る取付け金具の第１例を示す斜視図。
【図２】同取付け金具を配したブロック体を示す説明用平面図。
【図３】同使用状態を示す説明用縦断面図。
【図４】同使用状態を示す説明用横断面図。
【図５】取付け金具の第２例を示す斜視図。
【図６】取付け金具の第３例を示す斜視図。
【図７】同取付け金具を配したブロック体を示す説明用平面図。
【図８】同使用状態を示す説明用縦断面図。
【図９】同使用状態を示す説明用横断面図。
【図１０】従来例を示す説明用縦断面図。
【符号の説明】
２０ 取付け金具
２１ 基台
２２ 上面
２３ 棒状体
２５ ネジ山
２６ ナット
２７ ブロック体
２９ 水管
３３ 挿通穴
３８ フィン
３９ 炉壁[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fitting for mounting a water pipe protection pipe block body in a boiler that constitutes an incinerator or the like, and in particular, ease of installation of the block body and stress load on the block body caused by vibration or distortion of the water pipe. The present invention relates to a fitting for a boiler water pipe protecting pipe block body which is mainly intended to relax and prevent the block body from being destroyed.
[0002]
[Prior art]
Boiler water pipe protection pipe block that uses a water pipe on the wall of an incinerator or the like to generate steam by heating the fluid by heat exchange between the heat generated during incineration and the fluid flowing in the water pipe for power generation, etc. For the body, a fired refractory having a structure mainly composed of SiC having excellent fire resistance and corrosion resistance and relatively high thermal conductivity is used.
[0003]
In order to build the furnace wall, the block body is stacked vertically and inclined by a bolt support structure that supports the block body on the fin with bolts and a hook support structure that fits a metal hook provided on the fin into the hook hole. The method of constructing a furnace wall is used.
[0004]
The above construction method has the following advantages over the lining method using an irregular refractory.
(1) The block body is supported by a bolt or a hook on the fin, and its attachment and removal are easy, and the construction efficiency is improved.
(2) A uniform lining layer by a block body can be constructed, and its heat exchange rate is excellent.
(3) The partial repair can be performed by replacing the block body of the corresponding part, and the repair work is simplified.
[0005]
Incidentally, for example, a block body having a structure shown in FIG. 10 is known as the above-described bolt support structure (Japanese Patent Laid-Open No. 4-227401). According to this conventional example, the block body 1 is provided with a hollow portion 5 having a concave outline having an inner surface (front surface) 2 having a rib (protrusion portion) 4 covering the front surface of at least one tube 3 in the boiler. 6 includes a bolt hole 8 through which a threaded stud bolt 7 passes, and a central portion 9 swelled toward the inner surface 2 that gradually increases in thickness from the upper and lower edges toward the bolt hole 8. The tip of the bolt 7 is fixed to the membrane (fin) 10 connecting the tubes 3 and 3 by welding or the like. In the figure, 11 is a heat insulating material, and 12 is a sheet metal.
[0006]
[Problems to be solved by the invention]
However, the conventional bolt support structure has the following problems.
(1) The block body 1 is formed with a central portion 9 that gradually increases in thickness toward the bolt hole 8 of the bolt 7 on the inner surface 2 thereof, but when the width of the fin 10 is reduced, the central portion 9 The width must be narrower and sharper. Therefore, the mold becomes complicated, and it is difficult to form the block body 1 with low cost and uniform quality. Further, the central portion 9 is easily broken.
(2) If the mounting width of the fin 10 to which the bolt 7 is attached becomes narrow at the time of construction, it will take time to mount the bolt 7 and cause welding failure, or the center around the bolt hole 8 when the bolt 7 is tightened. Part 9 may be destroyed.
(3) Since the block body 1 is in direct contact with the fins 10 as a whole, the block body 1 is likely to be directly subjected to vibration and distortion of the boiler internal water pipe 3, causing the block body 1 to break down. Further, the block body 1 is directly affected by the expansion and contraction due to the heat of the water pipe 3, causing the block body 1 to break down.
(4) The mounting position of the bolt 7 is easily shifted, and it is difficult to secure the joints between the adjacent block bodies 1 and 1 at equal intervals, which causes the joints to crack.
[0007]
The present invention solves the above-mentioned problems, and its purpose is an inexpensive and uniform quality block body. Even if the fin mounting width is narrow, the mounting fitting can be easily installed, and the vibration of the water pipe Boiler water pipe protection pipe block body created to relieve stress load on the block body caused by strain and expansion / contraction to prevent the breakage of the block body and to secure the joints of adjacent block bodies at equal intervals The mounting bracket is provided.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, according to a first aspect of the present invention, the inner surface extends in the vertical direction in parallel between the covering portions of the boiler water pipe having a semicircular arc-shaped cross section, and the inner surface side and the outer surface side at the center. A fitting for fixing a tube block body for boiler water pipe protection, which is mainly composed of SiC, etc., which has a swelled connecting part having continuous insertion holes and whose outer surface is flat and vertical, and is welded to fins connecting the water pipes. A base and a cylindrical rod-like body having a threaded thread that is inserted into the insertion hole of the block body standing upright on the upper surface of the base; the width of the base is smaller than the diameter of the rod-like body; length is characterized in Rukoto such a large narrow rectangular than the width of the base.
[0009]
The second invention is characterized in that a plurality of cylindrical rod-like bodies cut with threads are erected in a continuous manner at a predetermined interval on a long base, and the third invention is a long A convex portion is provided on the upper surface of the long base with a predetermined interval, and a cylindrical rod-like body having a thread is raised on the convex portion. According to a fourth aspect of the invention, the material of the mounting bracket is a metal material such as a steel material or a stainless steel material.
[0010]
[Action]
According to the first aspect of the present invention, even when the fin mounting width is narrow, the mounting bracket is formed by welding the contact surface to the fin along the narrow longitudinal direction of the base parallel to the water pipe. Can be firmly fixed to the fin. In other words, the block body can be reliably fixed even if the fin mounting width is smaller than the diameter of the cylindrical rod-shaped body having a thread cut. Even if the fin mounting width is narrow, the central portion of the block body may not have a narrow and sharp structure.
[0011]
According to the second aspect of the invention, since the mounting position is accurate, the mounting position of the block body is correct, and it is easy to secure joints between adjacent block bodies. According to the third invention, the contact area between the base and the block body has a partial structure.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view illustrating a first example of a mounting bracket according to the present invention, FIG. 2 is a plan view illustrating a block body provided with the mounting bracket, and FIG. 3 is a longitudinal sectional view illustrating the same use state. FIG. 4 is a cross-sectional view for explanation showing the same use state, FIG. 5 is a perspective view showing a second example of the mounting bracket, and FIG. 6 is a perspective view showing a third example of the mounting bracket. FIG. 8 is an explanatory plan view showing a block body provided with the mounting bracket, FIG. 8 is an explanatory vertical sectional view showing the same use state, and FIG. 9 is an explanatory transverse sectional view showing the same use state.
[0013]
First, the mounting bracket 20 of the first example shown in FIG. 1 will be described. The mounting bracket 20 has a structure in which a columnar rod-like body 23 is erected at the center of the upper surface 22 of a base 21 made of a narrow rectangular parallelepiped . In this example, the rod-like body 23 has a base end 24 embedded in a substantially central position of the base 21 at the center of the upper surface 22 of the base 21 and is firmly fixed by welding or the like. However, the rod-like body 23 may be fixed to the upper surface 22 of the base 21 directly by welding or the like. The rod-like body 23 has a thread 25 cut.
[0014]
In the example described above, the rod-like body 23 has a diameter larger than the width of the base 21 as shown in the figure. Although the diameter of the rod-shaped body 23 does not need to be particularly limited, a certain degree of diameter is necessary in consideration of the attachment strength. In general, when the fin mounting width is narrow, the diameter of the rod-like body 23 is larger than the width of the base 21. In the present invention, even if the width of the base 21 is narrow, the fixing to the fin can be strengthened by increasing the length of the base 21 and increasing the contact area. Both may have the same diameter or one of them may have a small diameter. In addition, as the material of the mounting bracket 20, a metal material such as a steel material or a stainless steel material can be arbitrarily selected.
[0015]
Next, a usage example of the mounting bracket 20 will be described with reference to FIGS. The block body 27 to be used has a rectangular front shape as shown in FIG. 2, and the covering portions 30 and 30 having a semicircular cross section are parallel to the vertical direction so that the inner surfaces 28 are covered with the water pipes 29 and 29 in parallel. The both ends are formed as protrusions 31 and 31. The outer surface 32 is formed in a flat vertical shape.
[0016]
Further, between the covering portions 30 and 30 of the block body 27, a swollen connecting portion 34 extending in the vertical direction in parallel with the covering portions 30 and 30 and having an insertion hole 33 at the center is formed. The insertion holes 33 are respectively connected to the inner surface 28 of the block body 27 and a circular metal fitting housing portion 35 provided on the outer surface 32 side.
[0017]
The material of the block body 1 is preferably composed mainly of SiC and Si 3 N 4 , and is not limited to a double structure as shown in the figure, and can be composed of, for example, a triple structure or more.
[0018]
Are welded to the contact surfaces of the fins 38 and the base 21 with the longitudinal direction of the base 21 parallel to the water pipe 29 on the furnace inner surface side of the fins 38 connecting the water pipes 29, 29,. A plurality of mounting brackets 20 which are applied and welded are fixed at predetermined vertical intervals.
[0019]
With respect to the mounting bracket 20 in which the base 21 is welded to the fin 38, the block body 27 is aligned so that the inner surface 28 is vertical, and the covering portions 30, 30 are covered with the water pipes 29, 29 to mount the mounting bracket 20. Are inserted into the insertion holes 33 of the block body 27, and a part of the water pipes 29, 29,. Further, the block body 27 is fixed to the fin 38 by screwing the nut 26 into the screw thread 25 of the rod-like body 23. In this way, the block bodies 27, 27,... Are sequentially laminated to construct the furnace wall 39 having a predetermined angle. If the lid 40 made of the same material as that of the block body 27 is provided in the bracket housing portion 35 of the block body 27, the mounting bracket 20 and the nut 26 can be prevented from being deteriorated by corrosion.
[0020]
The mounting bracket 45 of the second example shown in FIG. 5 has a plurality of rod-like bodies at predetermined intervals on a long base 46 that extends long, whereas the mounting bracket 20 of the first example described above has a single structure. 47 is characterized by a structure in which 47 stands up continuously. In this case, like the mounting bracket 48 of the third example shown in FIG. 6, a convex portion 49 is provided continuously on the upper surface of the long base 46 at a predetermined interval, and the rod-like body 47 is provided on the convex portion 49. Is raised, the contact area between the base 46 and the block body 27 can be made partial. Other configurations are the same.
[0021]
By means of the mounting brackets 45, 48 in which the rod-like bodies 47, 47,... Are erected in such a continuous manner, the mounting position of the block body 27 can be accurately determined according to the construction drawing, and the adjacent block bodies 27, It is easy to secure joints between 27. Therefore, the same reference numerals as in the usage example of the mounting bracket 20 of the first example are attached to FIGS. 7 to 9 showing the usage example of the mounting bracket 48 of the third example, and the description thereof is omitted.
[0022]
The furnace wall 39 constructed using the mounting brackets 20, 45, 48 of the first to third examples described above has a narrow base 21 for the mounting brackets 20, 45, 48 even if the mounting width of the fins 38 is narrow. Since it is made of a rectangular parallelepiped , it is strong and can be easily welded and can withstand the load of the block body 27. Further, according to the mounting brackets 20 and 48, the block body 27 is supported only at the two points of the upper surface of the base 21 or the convex portion 49 and the rod-shaped bodies 23 and 47. The stress load on the body 27 can be relaxed, and in particular, the block body 27 in the vicinity of the connecting portion 34 can be prevented from being broken.
[0023]
【The invention's effect】
The present invention having the above configuration has the following effects.
(1) It is not necessary to form a narrow and sharp projecting portion at the connecting portion (center portion) of the block body to be used, so that a molding die is not complicated, and an inexpensive and uniform quality block body can be supplied. . Moreover, the thing which is hard to destroy is obtained.
(2) Even if the fin mounting width is narrow, the base of the mounting bracket has a narrow rectangular parallelepiped shape, so that its welding is possible and its strength is strong enough to withstand the load of the block body. Become.
(3) Since the block body is supported at only two points: the base of the mounting bracket and the rod-shaped body, the vibration and distortion of the water pipe, and the stress load on the block body caused by thermal expansion and contraction are alleviated and connected. The destruction of the vicinity of the part can be prevented.
(4) In particular, since the mounting position of a continuous mounting bracket is accurate, the mounting position of the block body is correct, it becomes easy to secure joints between adjacent block bodies, and cracks in the joint parts are prevented. it can.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a first example of a mounting bracket according to the present invention.
FIG. 2 is an explanatory plan view showing a block body provided with the mounting bracket.
FIG. 3 is an explanatory longitudinal sectional view showing the same use state.
FIG. 4 is an explanatory cross-sectional view showing the same use state.
FIG. 5 is a perspective view showing a second example of the mounting bracket.
FIG. 6 is a perspective view showing a third example of the mounting bracket.
FIG. 7 is an explanatory plan view showing a block body provided with the mounting bracket.
FIG. 8 is an explanatory longitudinal sectional view showing the same use state.
FIG. 9 is an explanatory cross-sectional view showing the same use state.
FIG. 10 is an explanatory longitudinal sectional view showing a conventional example.
[Explanation of symbols]
20 mounting bracket 21 base 22 upper surface 23 rod-like body 25 thread 26 nut 27 block body 29 water pipe 33 insertion hole 38 fin 39 furnace wall

Claims (4)

内面側が半円弧状の断面を有するボイラー水管の被覆部間に平行に上下方向に延び、且つ中心部に内面側と外面側に連なる挿通穴を有する膨らんだ連結部を備え、外面側が平らに鉛直状となるＳｉＣなどを主成分とするボイラー水管保護用管ブロック体を固定する取付け金具であって、
水管を連ねるフィンに溶接させる基台と、
前記基台の上面に起立させたブロック体の挿通穴に挿通させるネジ山を切った円柱状の棒状体を備え、
基台の幅は棒状体の直径よりも小さく、基台の長さは基台の幅よりも大きい幅狭な直方体からなることを特徴とするボイラー水管保護用管ブロック体の取付け金具。The inner surface of the boiler water pipe having a semicircular arc-shaped cross section extends in parallel in the vertical direction and has a swelled connecting portion that has an insertion hole in the center and is continuous with the inner surface and the outer surface. It is a mounting bracket for fixing a boiler water pipe protecting pipe block body mainly composed of SiC or the like,
A base to be welded to the fins connecting the water pipes;
A cylindrical rod-like body having a thread cut to be inserted into the insertion hole of the block body raised on the upper surface of the base ,
The width of the base is smaller than the diameter of the rod-shaped body, the base length is mounting brackets boiler water pipe protecting tube block body, wherein Rukoto such a large narrow rectangular than the width of the base. 長尺な基台に所定の間隔をおいて、ネジ山を切った複数の円柱状の棒状体を連続状に起立させたことを特徴とする請求項１記載のボイラー水管保護用管ブロック体の取付け金具。  2. The boiler water pipe protecting tube block according to claim 1, wherein a plurality of cylindrical rod-like bodies having thread threads are erected in a continuous manner at a predetermined interval on a long base. Mounting bracket. 長尺な基台の上面に所定の間隔をおいて凸部を設け、前記凸部にネジ山を切った円柱状の棒状体を起立させたことを特徴とする請求項２記載のボイラー水管保護用管ブロック体の取付け金具。  3. The boiler water tube protection according to claim 2, wherein a convex portion is provided on the upper surface of the long base at a predetermined interval, and a cylindrical rod-like body having a thread is raised on the convex portion. Mounting bracket for pipe block body. 取付け金具の材質が鉄鋼材又はステンレス鋼材などの金属材であることを特徴とする請求項１，２又は３記載のボイラー水管保護用管ブロック体の取付け金具。4. The mounting bracket for a boiler water pipe protecting tube block according to claim 1, wherein the mounting bracket is made of a metal material such as steel or stainless steel.
JP20979999A 1999-07-23 1999-07-23 Boiler water pipe protection pipe block body mounting bracket Expired - Fee Related JP3749044B2 (en)

Priority Applications (1)

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JP20979999A JP3749044B2 (en) 1999-07-23 1999-07-23 Boiler water pipe protection pipe block body mounting bracket

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Application Number Priority Date Filing Date Title
JP20979999A JP3749044B2 (en) 1999-07-23 1999-07-23 Boiler water pipe protection pipe block body mounting bracket

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JP3749044B2 true JP3749044B2 (en) 2006-02-22

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CN108544061B (en) * 2018-03-29 2020-08-04 上海锅炉厂有限公司 Nickel-based eccentric flat steel splicing and arranging welding device and welding process

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