JP2014213256A - Catalyst support device for reaction tube - Google Patents

Catalyst support device for reaction tube Download PDF

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JP2014213256A
JP2014213256A JP2013091943A JP2013091943A JP2014213256A JP 2014213256 A JP2014213256 A JP 2014213256A JP 2013091943 A JP2013091943 A JP 2013091943A JP 2013091943 A JP2013091943 A JP 2013091943A JP 2014213256 A JP2014213256 A JP 2014213256A
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catalyst
coil winding
reaction tube
support device
winding portion
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孝雄 野本
Takao Nomoto
孝雄 野本
康平 田中
Kohei Tanaka
康平 田中
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IHI Corp
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IHI Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
    • B01J8/06—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds in tube reactors; the solid particles being arranged in tubes
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
    • C07B61/00—Other general methods

Abstract

PROBLEM TO BE SOLVED: To facilitate inspection and maintenance of a weld part of a reaction tube facing a tube plate.SOLUTION: A catalyst support device 1 is configured to include: a coil winding part 3 on which a wire 2 is wound in a coil shape having an outer diameter dimension x larger than the inner diameter dimension of the reaction tube; a catalyst receiving part 4 which is formed with an opening 6 allowing passage of a fluid and blocking passage of a catalyst, by winding the wire 2 in a spiral shape at one end side of the coil winding part 3; an insertion amount adjustment part 9 which is formed by extending the wire 2 at the other end side of the coil winding part 3 by a certain dimension in parallel to an axial direction of the coil winding part 3; and a twisting force addition part 5 which is formed by bending the wire 2 at the other end side of the insertion amount adjustment part 9 in a radially inward direction of the coil winding part 3. After a force in a direction of relatively rotating so that the number of windings of the coil winding part 3 is increased is added to a locking part 7 of the catalyst receiving part 4 and the twisting force addition part 5 to insert the coil winding part 3 into the reaction tube in a diameter-reduced state, the coil winding part 3 is brought into close contact with the inner peripheral surface of the reaction tube by a restoring force of the coil winding part 3 to support a catalyst injected into the reaction tube.

Description

本発明は、多管式反応器の反応管の下端部に取り付けて、反応管に充填される触媒が脱落しないように支持するための反応管用触媒支持装置に関するものである。   The present invention relates to a catalyst support device for a reaction tube that is attached to the lower end of a reaction tube of a multi-tube reactor and supports the catalyst filled in the reaction tube so that it does not fall off.

触媒を用いて原料から反応生成物を連続的に製造するプロセスでは、発熱反応や吸熱反応である生成反応の進行に伴う温度変化を防止するために、生成反応の実施時に、熱媒との間接的な熱交換を並行して行わせることにより、反応温度条件を一定に維持することが行われている。   In the process of continuously producing reaction products from raw materials using a catalyst, in order to prevent temperature changes accompanying the progress of the production reaction, which is an exothermic reaction or endothermic reaction, indirect contact with the heat medium during the production reaction is performed. The reaction temperature condition is kept constant by performing simultaneous heat exchange in parallel.

この種の熱媒と原料及び反応生成物との熱交換を用いて反応温度条件をコントロールしながら、生成反応を効率よく実施させるための装置としては、たとえば、アクリル酸、酸化エチレン、メタクリル酸メチル、その他の各種化学物質の製造プロセスで広く用いられている多管式反応器（チューブラーリアクター）がある。   For example, acrylic acid, ethylene oxide, methyl methacrylate can be used as an apparatus for efficiently carrying out the production reaction while controlling the reaction temperature conditions using heat exchange between this type of heat medium and the raw materials and reaction products. In addition, there are multi-tubular reactors (tubular reactors) widely used in the manufacturing processes of various other chemical substances.

上記多管式反応器には、大別して管内触媒形式と、管外触媒形式のものがある。   The multi-tubular reactor is roughly classified into an in-tube catalyst type and an out-of-tube catalyst type.

このうち、管内触媒形式の多管式反応器は、一般に、反応容器の一端部に、管板によって仕切られた原料の分配室が設けてあると共に、上記反応容器の他端部に、別の管板によって仕切られた反応生成物の集合室が設けてある。且つ上記各管板同士の間には、平行な複数の反応管による管群が配置してあり、各反応管の両端部は、上記各管板に穿設してある貫通孔にそれぞれ取り付けて、上記分配室と集合室に連通させるようにしてある。更に、上記各反応管の内部は、触媒を充填した構成とされている。   Of these, the multi-tubular reactor of the in-tube catalyst type is generally provided with a raw material distribution chamber partitioned by a tube plate at one end of the reaction vessel, and at the other end of the reaction vessel. A reaction product collecting chamber partitioned by a tube sheet is provided. A tube group of a plurality of parallel reaction tubes is arranged between the tube plates, and both end portions of the reaction tubes are respectively attached to through holes formed in the tube plates. The distribution chamber and the collecting chamber are communicated with each other. Further, the inside of each reaction tube is configured to be filled with a catalyst.

ところで、上記のように各反応管の内部に触媒を充填する場合は、各反応管の両端部のうち、少なくとも重力作用方向側（下寄り）に配置されている端部（以下、下端部と称す）に、触媒の粒子（触媒自体の粒子、又は、触媒を担持させた担体粒子）は通過させないが、原料又は反応生成物の流体は通過させることができるようにした開口を備える触媒支持手段を設けて、各反応管内に充填される触媒が脱落しないように支持させる必要がある。   By the way, when the inside of each reaction tube is filled with the catalyst as described above, the end portion (hereinafter referred to as the lower end portion) disposed at least on the gravity action direction side (lower side) of both end portions of each reaction tube. Catalyst support means having an opening that does not allow passage of catalyst particles (catalyst particles or carrier particles carrying the catalyst) but allows the passage of the raw material or reaction product fluid. It is necessary to support the catalyst filled in each reaction tube so that it does not fall off.

上記触媒支持手段の１つとしては、上記多管式反応器における各反応管の下端部が取り付けられている管板の下側に、上記触媒の粒子のサイズよりも細かい目の金網を配置し、更に、該金網の下側に、上記各反応管の内部に充填される触媒の重量を、上記金網ごと下方から支持するための多孔板（金網支持板）を設けた構成が、広く一般的に採用されている。   As one of the catalyst support means, a wire mesh finer than the size of the catalyst particles is arranged below the tube plate to which the lower end of each reaction tube in the multi-tube reactor is attached. In addition, a configuration in which a perforated plate (wire mesh support plate) for supporting the weight of the catalyst filled in each reaction tube from the lower side together with the wire mesh is provided below the wire mesh. Has been adopted.

又、触媒支持手段の別の形式のものとしては、たとえば、略円錐形状のコイルスプリングを、管板に取付けられている各反応管内に下方より挿入して、該コイルスプリングの下端部を、該管板の下側に配置されている金網支持板の開口部に備えた突起（ストッパ）に係止させるようにしたものが従来提案されている（たとえば、特許文献１（第５頁、図７）参照）。   Further, as another type of catalyst support means, for example, a substantially conical coil spring is inserted into each reaction tube attached to the tube plate from below, and the lower end of the coil spring is inserted into the reaction tube. Conventionally proposed is a structure in which a projection (stopper) provided in an opening of a wire mesh support plate arranged on the lower side of a tube plate is engaged (for example, Patent Document 1 (page 5, FIG. 7). )reference).

特開２００６−１４２２９９号公報JP 2006-142299 A

ところが、各反応管の下端部が取り付けられた反応容器下端寄りの管板の下側に、触媒支持用の金網と多孔板を設ける構成では、上記各反応管の下端部と管板との溶接部分が、上記金網や多孔板によって覆われてしまうために、該各反応管の溶接部分の点検や保守に手間と時間を要する。更に、上記各反応管の維持管理を行う際には、上記金網や多孔板を全体的に取り外す必要が生じるため、各反応管を個別に維持管理することはできないというのが実状である。   However, in a configuration in which a metal mesh for supporting the catalyst and a porous plate are provided below the tube plate near the lower end of the reaction vessel to which the lower end portion of each reaction tube is attached, the lower end portion of each reaction tube and the tube plate are welded. Since the portion is covered with the wire mesh or the perforated plate, it takes time and labor to check and maintain the welded portion of each reaction tube. Furthermore, when performing maintenance and management of each reaction tube, it is necessary to remove the wire mesh and the perforated plate as a whole, and therefore it is a fact that each reaction tube cannot be individually maintained and managed.

又、上記特許文献１に示された略円錐形状のコイルスプリングによる触媒支持手段を採用する構成では、コイルスプリングを支持する突起が必要であり、その突起は、反応容器下端寄りの管板の下方に備えた金網支持板に設ける必要がある。このため、上記と同様に、各反応管と管板との溶接部分の点検や保守に手間と時間を要してしまう。   Further, in the configuration employing the catalyst support means by the substantially conical coil spring shown in Patent Document 1, a projection for supporting the coil spring is required, and the projection is below the tube plate near the lower end of the reaction vessel. It is necessary to provide it on the wire mesh support plate prepared for. For this reason, similarly to the above, labor and time are required for inspection and maintenance of the welded portion between each reaction tube and the tube sheet.

そこで、本発明は、上記反応容器や各反応管に突起の如き支持手段を設けることなく各反応管内に保持できるようにし、上記管板に対する各反応管の溶接部分の点検と保守が容易に実施できる反応管用触媒支持装置を提供しようとするものである。   Therefore, the present invention enables the reaction vessel and each reaction tube to be held in each reaction tube without providing a support means such as a projection, and the inspection and maintenance of the welded portion of each reaction tube with respect to the above-described tube plate is easily performed. An object of the present invention is to provide a catalyst support device for a reaction tube.

本発明は、上記課題を解決するために、請求項１に対応して、多管式反応器の触媒を充填する反応管の少なくとも重力作用方向に位置する端部に触媒が脱落しないように取り付けるための反応管用触媒支持装置であって、弾性を有する線材を上記反応管の内径寸法よりも大きい外径寸法を有するコイル形状に巻いたコイル巻き部と、触媒は通過させないが流体は通過させる大きさの開口を備えて、上記コイル巻き部の軸方向の一端側に設けた触媒受け部と、上記コイル巻き部の内側から上記触媒受け部に対しコイル巻き部の巻きを増加させるように回転させる方向の力を付与するための係止部と、上記コイル巻き部の軸方向の他端側に、コイル巻き部の巻きを増加させるように回転させる方向の力を付与するために設けた捩じり力付与部とを備えてなる構成を有する反応管用触媒支持装置とする。   In order to solve the above-mentioned problems, the present invention, corresponding to claim 1, is attached so that the catalyst does not fall off at least at the end portion of the reaction tube filled with the catalyst of the multi-tube reactor located in the direction of gravity. A reaction tube catalyst support device for winding a coil having an elastic wire wound in a coil shape having an outer diameter larger than the inner diameter of the reaction tube; A catalyst receiving portion provided on one end side in the axial direction of the coil winding portion, and rotating from the inside of the coil winding portion to increase the winding of the coil winding portion with respect to the catalyst receiving portion. A locking portion for applying a force in the direction, and a screw provided to apply a force in a direction to rotate the coil winding portion so as to increase the winding of the coil winding portion on the other end side in the axial direction of the coil winding portion. The force application section The reaction tubes catalyst supporting device having Ete consisting configuration.

又、請求項２に対応して、上記請求項１に対応する構成において、コイル巻き部は、軸方向に配列される各周回の線材同士が接するコイル形状とした構成とする。   Corresponding to claim 2, in the configuration corresponding to claim 1, the coil winding portion is configured to have a coil shape in which the wire rods arranged in the axial direction are in contact with each other.

更に、請求項３に対応して、上記請求項１又は２に対応する構成において、触媒受け部は、コイル巻き部の軸方向に直交する面内に配置されるものとした構成とする。   Further, corresponding to claim 3, in the configuration corresponding to claim 1 or 2, the catalyst receiving portion is arranged in a plane perpendicular to the axial direction of the coil winding portion.

更に、請求項４に対応して、上記請求項１から請求項３のいずれか一項に対応する構成において、コイル巻き部と捩じり力付与部との間に、コイル巻き部の軸方向に平行に延びる挿入量調整部を備えるようにした構成とする。   Furthermore, corresponding to claim 4, in the configuration corresponding to any one of claims 1 to 3, the axial direction of the coil winding portion is between the coil winding portion and the torsional force applying portion. It is set as the structure which was provided with the insertion amount adjustment | control part extended in parallel.

本発明によれば、以下のような優れた効果を発揮する。
（１）請求項１に示した構成を有する反応管用触媒支持装置は、触媒受け部の係止部と、捩じり力付与部に、コイル巻き部の巻きを増加させる方向に相対的に回転させる方向の力を付与して、コイル巻き部の外径寸法を縮径させた状態で反応管に挿入し、次いで、上記力を解除することで、上記コイル巻き部の復元力により該コイル巻き部の外周を、反応管の内周面に密着させ、この密着部分に生じる摩擦力で、反応管に充填される触媒を支持することができるようになる。
（２）したがって、各反応管には個別の反応管用触媒支持装置が取り付けられるようになる。このため、各反応管の下端部が取り付けられた管板の下方に金網や金網支持板を配置する必要をなくすことができて、上記管板に対する各反応管の溶接部分の点検と保守を容易に実施することができる。更に、各反応管は、個別に維持管理することができる。
（３）又、反応管が常温から触媒を用いた生成反応時に設定される温度までの温度変化に伴って膨張や収縮を生じても、該反応管の内径寸法の変化は、コイル巻き部の弾性変形により吸収することができる。よって、本発明の反応管用触媒支持装置は、上記反応管の温度変化に影響を受けることなく、触媒の支持を良好に実施することができる。 According to the present invention, the following excellent effects are exhibited.
(1) The reaction tube catalyst support device having the configuration described in claim 1 is relatively rotated in the direction in which the winding of the coil winding portion is increased in the engaging portion of the catalyst receiving portion and the torsional force applying portion. Is applied to the reaction tube in a state where the outer diameter of the coil winding portion is reduced, and then the force is released to release the coil winding by the restoring force of the coil winding portion. The outer periphery of the part is brought into close contact with the inner peripheral surface of the reaction tube, and the catalyst filled in the reaction tube can be supported by the frictional force generated at the contact portion.
(2) Therefore, an individual catalyst support device for a reaction tube is attached to each reaction tube. This eliminates the need to place a wire mesh or wire mesh support plate below the tube plate to which the lower end of each reaction tube is attached, facilitating inspection and maintenance of the welded portion of each reaction tube with respect to the tube plate. Can be implemented. Furthermore, each reaction tube can be individually maintained.
(3) Even if the reaction tube expands or contracts as the temperature changes from room temperature to the temperature set during the production reaction using the catalyst, the change in the inner diameter of the reaction tube It can be absorbed by elastic deformation. Therefore, the catalyst support device for a reaction tube of the present invention can favorably support the catalyst without being affected by the temperature change of the reaction tube.

本発明の反応管用触媒支持装置の実施の一形態を示すもので、（ａ）は概略側面図、（ｂ）は（ａ）のＡ−Ａ方向矢視図、（ｃ）は（ａ）のＢ−Ｂ方向矢視図である。1 shows an embodiment of a catalyst support device for a reaction tube of the present invention, in which (a) is a schematic side view, (b) is a view taken in the direction of arrows AA in (a), and (c) is a view in (a). It is a BB direction arrow directional view. 図１の反応管用触媒支持装置の使用状態を示す概要図である。It is a schematic diagram which shows the use condition of the catalyst support apparatus for reaction tubes of FIG. 本発明の実施の他の形態を示すもので、（ａ）は概略側面図、（ｂ）は（ａ）のＣ−Ｃ方向矢視図である。The other form of implementation of this invention is shown, (a) is a schematic side view, (b) is a CC direction arrow directional view of (a).

以下、本発明を実施するための形態を図面を参照して説明する。   Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

図１（ａ）（ｂ）（ｃ）及び図２は本発明の反応管用触媒支持装置１の実施の一形態を示すものである。   1 (a), (b), (c) and FIG. 2 show an embodiment of a reaction tube catalyst support device 1 of the present invention.

本発明の反応管用触媒支持装置１（以下、単に、本発明の触媒支持装置と云う）は、弾性を有する線材２を、多管式反応器（図示せず）の反応管ｔの内径寸法ｙ（図２参照）よりも大きな外径寸法ｘ（図１（ａ）参照）を有するコイル状（弦巻状）に巻いたコイル巻き部３を有する。更に、上記コイル巻き部３の軸方向の一端側には、触媒受け部４を設けると共に、他端側には、捩じり力付与部５を備えた挿入量調整部９を有する構成としてある。   The catalyst support device 1 for a reaction tube of the present invention (hereinafter simply referred to as the catalyst support device of the present invention) includes an elastic wire 2 and an inner diameter y of a reaction tube t of a multi-tube reactor (not shown). A coil winding portion 3 wound in a coil shape (string winding shape) having an outer diameter x (see FIG. 1A) larger than (see FIG. 2) is provided. Further, a catalyst receiving portion 4 is provided on one end side of the coil winding portion 3 in the axial direction, and an insertion amount adjusting portion 9 having a torsional force applying portion 5 is provided on the other end side. .

ところで、上記多管式反応器（図示せず）では、常温から、各反応管ｔにて生成反応を進行させる使用時の温度条件までの温度範囲内での温度変化に伴われて、上記各反応管ｔが膨張や収縮を生じるため、該各反応管ｔの内径寸法ｙも変化する。   By the way, in the above-mentioned multi-tubular reactor (not shown), each of the above-mentioned each is accompanied by a temperature change within a temperature range from room temperature to a temperature condition at the time of use in which the production reaction proceeds in each reaction tube t. Since the reaction tube t expands and contracts, the inner diameter y of each reaction tube t also changes.

この点に鑑みて、上記コイル巻き部３は、その外径寸法ｘが、上記各反応管ｔが温度変化する温度範囲の全域に亘り、該コイル巻き部３と同じ温度の反応管ｔの内径寸法ｙよりも常に大きくなるように設定してある。これにより、後述するように本発明の触媒支持装置１を、上記コイル巻き部３を縮径させて反応管ｔの内側に挿入して装着させた状態では、上記温度範囲の全域で、該コイル巻き部３の外周部を、上記反応管ｔの内周面に全周に亘り密着させることができるようにしてある。   In view of this point, the coil winding portion 3 has an outer diameter x over the entire temperature range in which the temperature of each reaction tube t changes, and the inner diameter of the reaction tube t having the same temperature as the coil winding portion 3. It is set to be always larger than the dimension y. As a result, as will be described later, in the state where the catalyst support device 1 of the present invention is inserted and mounted inside the reaction tube t with the diameter of the coil winding portion 3 reduced, the coil is supported in the entire temperature range. The outer periphery of the winding part 3 can be brought into close contact with the inner peripheral surface of the reaction tube t over the entire periphery.

更に、上記温度範囲内の全域で、原料や反応生成物の流体が存在する条件の下であっても、本発明の触媒支持装置１を反応管ｔ内に装着させた状態では、上記コイル巻き部３の外周部と、上記反応管ｔの内周面との密着部分に生じる摩擦力により、本発明の触媒支持装置１は、上方より作用する反応管ｔ内の触媒ｃの重量を支持することができるように、上記コイル巻き部３を形成する線材２の太さや断面形状や弾性、コイル巻き部３の外径寸法ｘや巻き数が設定されている。なお、これらの設定は、たとえば、上記反応管ｔと同様の管に本発明の触媒支持装置１を装着して、実際の反応管ｔに充填される触媒ｃの比重と量から算出される重量に或る安全率を見込んだ荷重を掛けても、本発明の触媒支持装置１の脱落が生じないという結果が得られるようにすればよい。   Furthermore, even if the raw material and the reaction product fluid exist over the entire temperature range, the coil winding is not performed when the catalyst support device 1 of the present invention is mounted in the reaction tube t. The catalyst support device 1 of the present invention supports the weight of the catalyst c in the reaction tube t acting from above by the frictional force generated at the close contact portion between the outer peripheral portion of the portion 3 and the inner peripheral surface of the reaction tube t. The thickness, cross-sectional shape and elasticity of the wire 2 forming the coil winding portion 3, the outer diameter x of the coil winding portion 3, and the number of turns are set. These settings are made, for example, by calculating the weight calculated from the specific gravity and amount of the catalyst c charged in the actual reaction tube t by mounting the catalyst support device 1 of the present invention on the same tube as the reaction tube t. What is necessary is just to make it the result that the catalyst support apparatus 1 of the present invention does not fall off even if a load with a certain safety factor is applied.

上記コイル巻き部３のピッチは、コイル形状に巻かれた状態で軸方向に並んで配列される各周回の線材２同士が、互いに接するように設定してある。これにより、上記コイル巻き部３は、後述するように反応管ｔ内に充填される触媒ｃ（図２参照）の重量が上記触媒受け部４を介して軸方向の一端側から作用するときに、該触媒ｃの重量が変化しても、該コイル巻き部３の軸方向の寸法が圧縮されることなく一定に保持されるようにしてある。
したがって、本発明の触媒支持装置１では、上記反応管ｔ内に充填される触媒ｃの下端側の位置を、該触媒ｃの重量の影響を受けることなく、上記触媒受け部４の位置で規定することができるようにしてある。よって、上記多管式反応器（図示せず）の使用時には、各反応管ｔの軸方向における生成反応が進行する領域の下端側位置を、上記本発明の触媒支持装置１における触媒受け部４の位置で規定することができるようにしてある。 The pitch of the coil winding part 3 is set so that the respective wire rods 2 arranged in the axial direction in a coiled state are in contact with each other. As a result, the coil winding portion 3 is used when the weight of the catalyst c (see FIG. 2) filled in the reaction tube t acts from one end side in the axial direction via the catalyst receiving portion 4 as will be described later. Even if the weight of the catalyst c changes, the axial dimension of the coil winding portion 3 is kept constant without being compressed.
Therefore, in the catalyst support device 1 of the present invention, the position of the lower end side of the catalyst c filled in the reaction tube t is defined by the position of the catalyst receiving portion 4 without being affected by the weight of the catalyst c. You can do that. Therefore, when the multi-tubular reactor (not shown) is used, the position of the lower end side of the region where the production reaction proceeds in the axial direction of each reaction tube t is set to the catalyst receiving portion 4 in the catalyst support device 1 of the present invention. It can be defined by the position of.

上記触媒受け部４は、上記コイル巻き部３を形成している線材２の一端側を、上記コイル巻き部３の軸方向に直交する面内で、渦巻き形状に巻いた構成としてある。且つ上記触媒受け部４における上記渦巻き形状に巻いた線材２の各周回の線材２同士の間には、触媒ｃの粒子の粒径よりも小さい幅寸法で螺旋方向に延びる開口６が形成されている。これにより、上記触媒受け部４は、上記開口６では触媒ｃの粒子の脱落を防止する一方、原料や反応生成物といった流体は流通させることができるようにしてある。   The catalyst receiver 4 is configured such that one end side of the wire 2 forming the coil winding portion 3 is wound in a spiral shape within a plane perpendicular to the axial direction of the coil winding portion 3. In addition, an opening 6 extending in the spiral direction with a width smaller than the particle size of the catalyst c particles is formed between the wires 2 of each circumference of the wire 2 wound in the spiral shape in the catalyst receiver 4. Yes. As a result, the catalyst receiving portion 4 prevents the particles of the catalyst c from dropping off at the opening 6, while allowing fluid such as raw materials and reaction products to flow.

しかも、上記触媒受け部４は、上記コイル巻き部３の軸方向に直交する面内に配置させてあるので、本発明の触媒支持装置１では、上記反応管ｔ内に充填される触媒ｃの下端側の位置を、上記触媒受け部４の配置された平面に沿わせた位置で規定することができるようにしてある。よって、上記多管式反応器（図示せず）の使用時には、各反応管ｔの軸方向における生成反応が進行する領域の下端側位置が、各反応管ｔの断面内で軸方向に揃うようにしてある。   Moreover, since the catalyst receiving portion 4 is disposed in a plane orthogonal to the axial direction of the coil winding portion 3, in the catalyst support device 1 of the present invention, the catalyst c filled in the reaction tube t The position on the lower end side can be defined by a position along the plane on which the catalyst receiving portion 4 is arranged. Therefore, when the multi-tubular reactor (not shown) is used, the lower end side position of the region where the production reaction proceeds in the axial direction of each reaction tube t is aligned in the axial direction within the cross section of each reaction tube t. It is.

更に、上記触媒受け部４は、その中央部に、上記線材２を上記コイル巻き部３の直径方向に沿わせて配置させた係止部７が設けてある。これにより、上記触媒受け部４の係止部７には、図１（ａ）（ｂ）に二点鎖線で示すように、上記コイル巻き部３の内側を軸方向の他端側より挿入させるロッド状の治具８の先端部に備えたクレビス状（二股形状）の係合用突部８ａを係止させることができるようにしてある。この状態で、挿入量調整部９を介してコイル巻き部３と一体の捩じり力付与部５を固定して、上記触媒受け部４の渦巻き形状としてある線材２の巻きを強める方向に上記治具８を捻ることにより、上記係止部７及び上記触媒受け部４を介して、上記コイル巻き部３の一端側には、該コイル巻き部３の軸を中心とする回転方向の力を付与することができるようにしてある。   Furthermore, the catalyst receiving portion 4 is provided with a locking portion 7 in which the wire 2 is arranged along the diameter direction of the coil winding portion 3 at the center thereof. As a result, the inner side of the coil winding portion 3 is inserted into the locking portion 7 of the catalyst receiving portion 4 from the other end side in the axial direction, as shown by a two-dot chain line in FIGS. The clevis-shaped (bifurcated) engaging protrusion 8a provided at the tip of the rod-shaped jig 8 can be locked. In this state, the torsional force applying portion 5 integrated with the coil winding portion 3 is fixed via the insertion amount adjusting portion 9, and the winding of the wire 2 having the spiral shape of the catalyst receiving portion 4 is strengthened in the above direction. By twisting the jig 8, a force in the rotational direction about the axis of the coil winding portion 3 is applied to one end side of the coil winding portion 3 via the locking portion 7 and the catalyst receiving portion 4. It can be granted.

上記捩じり力付与部５は、上記コイル巻き部３を形成している線材２の他端部を、該コイル巻き部３の直径に沿う配置で該コイル巻き部３の径方向内向きに突出させた構成としてある。これにより、上記捩じり力付与部５を、たとえば、クランプのような所定の隙間を備えた図示しない治具により挟んで保持した状態で該治具を捻ることにより、上記捩じり力付与部５を介して上記コイル巻き部３の他端側に、該コイル巻き部３の軸を中心とする回転方向の力を付与することができるようにしてある。   The torsional force imparting portion 5 is configured such that the other end portion of the wire 2 forming the coil winding portion 3 is arranged radially inward of the coil winding portion 3 by being arranged along the diameter of the coil winding portion 3. It has a protruding configuration. Thereby, the torsional force is applied by twisting the jig while holding the torsional force applying part 5 with a jig (not shown) having a predetermined gap such as a clamp. A force in the rotational direction about the axis of the coil winding portion 3 can be applied to the other end side of the coil winding portion 3 via the portion 5.

したがって、本発明の触媒支持装置１では、上記触媒受け部４の係止部７に係合用突部８ａを係止させる上記ロッド状の治具８と、上記捩じり力付与部５を挟んで保持させる図示しない治具を用いて、上記コイル巻き部３の一端部と他端部に、その巻きを増加させる向きの相対的に捻る力を付与することにより、該コイル巻き部３の線材２を弾性変形させて、該コイル巻き部３の外径寸法を縮径させることができるようにしてある。   Therefore, in the catalyst support device 1 of the present invention, the rod-shaped jig 8 that locks the engaging protrusion 8a with the locking portion 7 of the catalyst receiving portion 4 and the torsional force applying portion 5 are sandwiched. By using a jig (not shown) that is held by the wire, a wire material of the coil winding portion 3 is applied to one end portion and the other end portion of the coil winding portion 3 in a direction to increase the winding. 2 is elastically deformed so that the outer diameter of the coil winding portion 3 can be reduced.

上記コイル巻き部３の他端側（反触媒受け部４側）と、上記捩じり力付与部５との間に線材２を直線状に延ばして設けてある挿入量調整部９は、反応管ｔ内に装着する触媒受け部４の位置を決めるものである。   The insertion amount adjusting unit 9 provided by extending the wire 2 linearly between the other end side of the coil winding unit 3 (on the side of the anti-catalyst receiving unit 4) and the torsional force applying unit 5 The position of the catalyst receiving portion 4 mounted in the pipe t is determined.

そのために、上記挿入量調整部９の長さ寸法は、図２に示すように、本発明の触媒支持装置１を、対応する反応管ｔの下端部より挿入して、上記捩じり力付与部５が、上記反応管ｔの下端部近傍となる位置のときに、上記触媒受け部４を、該反応管ｔが取り付けてある管板ｐよりも反応容器内側となる位置に配置させた状態とすることができるように設定してあるものとする。   Therefore, as shown in FIG. 2, the length dimension of the insertion amount adjusting unit 9 is such that the catalyst support device 1 of the present invention is inserted from the lower end portion of the corresponding reaction tube t to apply the torsional force. When the portion 5 is in the vicinity of the lower end portion of the reaction tube t, the catalyst receiving portion 4 is disposed at a position that is closer to the inside of the reaction vessel than the tube plate p to which the reaction tube t is attached. It is assumed that it is set so that

以上の構成としてある本発明の触媒支持装置１を使用する場合は、先ず、本発明の触媒支持装置１に対し、前述したようにコイル巻き部３の他端側から該コイル巻き部３の内側を挿入させて、先端部の係合用突部８ａを触媒受け部４の係止部７に係止させたロッド状の治具８と、捩じり力付与部５を保持した図示しない治具を用いて、上記コイル巻き部３に、その巻きを増加させる向きの相対的に捻る力を付与して、該コイル巻き部３の巻きを増加させることにより、該コイル巻き部３の外径寸法ｘを、反応管ｔの内径寸法ｙよりも小さくなるまで縮径させる。   When using the catalyst support device 1 of the present invention having the above-described configuration, first, as described above, the inside of the coil winding portion 3 from the other end side of the coil winding portion 3 with respect to the catalyst support device 1 of the present invention. And a rod-shaped jig 8 in which the engaging protrusion 8a at the tip is locked to the locking part 7 of the catalyst receiving part 4, and a jig (not shown) holding the torsional force applying part 5 The coil winding portion 3 is applied with a relatively twisting force in the direction of increasing its winding, and the winding of the coil winding portion 3 is increased, whereby the outer diameter dimension of the coil winding portion 3 is increased. x is reduced until it becomes smaller than the inner diameter y of the reaction tube t.

次に、上記コイル巻き部３を縮径させた状態の本発明の触媒支持装置１は、反応管ｔの下端部に、触媒受け部４側より挿入する。この際、本発明の触媒支持装置１の反応管ｔへの挿入量は、上記ロッド状の治具８及び図示しない治具により、上記捩じり力付与部５が反応管ｔの下端部に位置するように調整することができる。   Next, the catalyst support device 1 of the present invention with the diameter of the coil winding portion 3 is inserted into the lower end portion of the reaction tube t from the catalyst receiving portion 4 side. At this time, the amount of insertion of the catalyst support device 1 of the present invention into the reaction tube t is such that the torsional force applying portion 5 is placed at the lower end of the reaction tube t by the rod-shaped jig 8 and a jig (not shown). Can be adjusted to position.

次いで、上記ロッド状の治具８と、図示しない治具により付与していた本発明の触媒支持装置１のコイル巻き部３の捻り力を解除すると、上記コイル巻き部３の縮径状態からの復元力により、該コイル巻き部３の外周部は、上記反応管ｔの内周面に周方向の全体に亘り密着するようになる。   Next, when the twisting force of the coil winding portion 3 of the catalyst support device 1 of the present invention applied by the rod-shaped jig 8 and a jig (not shown) is released, the coil winding portion 3 is released from the reduced diameter state. Due to the restoring force, the outer peripheral portion of the coil winding portion 3 comes into close contact with the inner peripheral surface of the reaction tube t over the entire circumferential direction.

その後、上記ロッド状の治具８及び図示しない治具を取外して撤去するようにする。   Thereafter, the rod-shaped jig 8 and a jig (not shown) are removed and removed.

多管式反応器（図示せず）のすべての反応管ｔごとに上記動作を繰り返すことにより、上記本発明の触媒支持装置１は、各反応管ｔの下端部に挿入された状態になる。この際、上記コイル巻き部３は、上記反応管ｔの内周面に密着し、該密着個所に摩擦力が生じるようになる。よって、その後は、上記反応管ｔ内に上端側から触媒を充填する。充填された該触媒ｃは、本発明の触媒支持装置１における触媒受け部４の上側に受けられると共に、該触媒ｃの重量を、上記コイル巻き部３の外周部と反応管ｔの内周面との密着部分に生じる摩擦力によって支持させることができる。   By repeating the above operation for every reaction tube t of a multi-tube reactor (not shown), the catalyst support device 1 of the present invention is inserted into the lower end portion of each reaction tube t. At this time, the coil winding portion 3 comes into close contact with the inner peripheral surface of the reaction tube t, and a frictional force is generated at the contact portion. Therefore, thereafter, the catalyst is filled into the reaction tube t from the upper end side. The filled catalyst c is received on the upper side of the catalyst receiving portion 4 in the catalyst support device 1 of the present invention, and the weight of the catalyst c is divided into the outer peripheral portion of the coil winding portion 3 and the inner peripheral surface of the reaction tube t. It can be supported by the frictional force generated at the close contact portion.

このように、本発明の触媒支持装置１は、各反応管ｔの下端部に個別に挿入して密着させることにより、該各反応管ｔに充填される触媒ｃをそれぞれ支持することができる。   Thus, the catalyst support device 1 of the present invention can support the catalyst c filled in each reaction tube t by individually inserting and closely contacting the lower end portion of each reaction tube t.

よって、上記本発明の触媒支持装置１を使用する場合は、上記各反応管ｔの下端部が取り付けてある管板ｐの下方に金網や金網支持板を設ける必要をなくすことができる。これにより、上記管板ｐに対する上記各反応管ｔの溶接部分の点検や保守を容易に実施することができるようになる。   Therefore, when using the catalyst support device 1 of the present invention, it is possible to eliminate the need to provide a wire mesh or a wire mesh support plate below the tube plate p to which the lower end of each reaction tube t is attached. Thereby, the inspection and maintenance of the welded portion of each reaction tube t with respect to the tube sheet p can be easily performed.

更に、上記本発明の触媒支持装置１は、各反応管ｔの下端部に個別に取り付けるようにしてあるために、各反応管ｔを個別に維持管理することができる。   Furthermore, since the catalyst support apparatus 1 of the present invention is individually attached to the lower end of each reaction tube t, each reaction tube t can be individually maintained and managed.

上記において、本発明の触媒支持装置１は、挿入量調整部９を備えているため、対象となる反応管ｔの下端から捩じり力付与部５がわずかに突出（露出）する状態となるまで順次挿入することにより、上記各反応管ｔの下端部に対する本発明の触媒支持装置１の挿入量を均一に管理することができる。しかも、反応管ｔごとに上記捩じり力付与部５を目視で確認することにより、本発明の触媒支持装置１が取り付けられていない反応管ｔや、取付け方に不良が生じている反応管ｔを容易に発見することができる。よって、本発明の触媒支持装置１の反応管ｔへの取付け漏れや、取付け方の不良を容易に修正することができるようになる。   In the above, since the catalyst support apparatus 1 of the present invention includes the insertion amount adjusting unit 9, the torsional force applying unit 5 slightly protrudes (exposes) from the lower end of the target reaction tube t. Are inserted in order, the amount of insertion of the catalyst support device 1 of the present invention into the lower end of each reaction tube t can be managed uniformly. In addition, by visually checking the torsional force imparting portion 5 for each reaction tube t, the reaction tube t to which the catalyst support device 1 of the present invention is not attached or a reaction tube in which the attachment method is defective is generated. t can be easily found. Therefore, it is possible to easily correct the leakage of attachment of the catalyst support device 1 of the present invention to the reaction tube t and the attachment failure.

又、本発明の触媒支持装置１のコイル巻き部３は、軸方向に並んで配列される各周回の線材２同士が互いに接するようにした形状としてあるために、反応管ｔに充填される触媒ｃの重量の変化にかかわらず、触媒受け部４の反応管ｔ内での位置を一定に保持させることができる。   Further, the coil winding portion 3 of the catalyst support device 1 of the present invention has a shape in which the respective wire rods 2 arranged side by side in the axial direction are in contact with each other, and therefore the catalyst filled in the reaction tube t. Regardless of the change in the weight of c, the position of the catalyst receiving portion 4 in the reaction tube t can be kept constant.

更に、上記触媒受け部４は、上記コイル巻き部３の軸方向に直交する面内に配置されているため、該触媒受け部４で受けられる触媒ｃの充填領域の下端部を、反応管ｔ内で平坦にすることができる。したがって、多管式反応器（図示せず）では、使用時に、各反応管ｔの軸方向における生成反応を進行させる領域の下端側位置を、反応管ｔごとのばらつきを抑えて、均一に保持することができるようになる。   Further, since the catalyst receiving portion 4 is disposed in a plane orthogonal to the axial direction of the coil winding portion 3, the lower end portion of the filling region of the catalyst c received by the catalyst receiving portion 4 is connected to the reaction tube t. Can be flattened in. Therefore, in a multi-tubular reactor (not shown), when used, the lower end side position of the region in which the production reaction proceeds in the axial direction of each reaction tube t is kept uniform while suppressing variation for each reaction tube t. Will be able to.

なお、本発明の触媒支持装置１が反応管ｔ内に装着された状態で、反応管ｔが常温から生成反応時に設定される温度までの温度変化に伴って膨張や収縮を生じても、該反応管ｔの内径寸法ｙの変化は、コイル巻き部３の弾性変形により吸収することができるため、本発明の触媒支持装置１は、上記反応管ｔの温度変化に影響を受けることなく、触媒ｃの支持を良好に実施することができる。   Even when the catalyst support device 1 of the present invention is mounted in the reaction tube t, even if the reaction tube t expands or contracts as the temperature changes from room temperature to the temperature set during the production reaction, Since the change in the inner diameter y of the reaction tube t can be absorbed by the elastic deformation of the coil winding portion 3, the catalyst support device 1 of the present invention is not affected by the temperature change in the reaction tube t, and the catalyst The support of c can be carried out satisfactorily.

次に、図３（ａ）（ｂ）は本発明の実施の他の形態として、図１（ａ）（ｂ）（ｃ）の実施の形態の応用例を示すものである。   Next, FIGS. 3A and 3B show application examples of the embodiment of FIGS. 1A, 1B, and 1C as another embodiment of the present invention.

すなわち、本実施の形態の触媒支持装置１Ａは、図１（ａ）（ｂ）（ｃ）に示したと同様の構成において、触媒受け部４を、線材２を渦巻き形状に巻いた構成とすることに代えて、反応管ｔに充填する触媒ｃ（図２参照）の粒径よりも小さい径の開口１１を有する多孔板形式の触媒受け部１０を備える構成としたものである。   That is, the catalyst support device 1A of the present embodiment has a configuration in which the catalyst receiving portion 4 is wound in a spiral shape in the same configuration as shown in FIGS. 1 (a), (b), and (c). Instead of this, the catalyst receiving portion 10 in the form of a perforated plate having an opening 11 having a diameter smaller than the particle diameter of the catalyst c (see FIG. 2) filled in the reaction tube t is provided.

上記多孔板形式の触媒受け部１０は、その外径寸法が、反応管ｔの内径寸法ｙ（図２参照）よりも小さく、且つ該触媒受け部１０を反応管ｔの内部に配置したときに、該触媒受け部１０の外周端と反応管ｔの内周面との間に上記触媒ｃの粒径以上の隙間が形成されないように設定してあるものとしてあり、コイル巻き部３に臨む側の面を、該コイル巻き部３を形成している線材２の一端側に、溶接や図示しないボルトとナットやリベット等の接続手段により一体に接続するようにしてある。   The porous plate type catalyst receiving portion 10 has an outer diameter smaller than an inner diameter y (see FIG. 2) of the reaction tube t, and the catalyst receiving portion 10 is disposed inside the reaction tube t. In addition, it is assumed that a gap larger than the particle diameter of the catalyst c is not formed between the outer peripheral end of the catalyst receiving part 10 and the inner peripheral surface of the reaction tube t, and the side facing the coil winding part 3 This surface is integrally connected to one end side of the wire 2 forming the coil winding portion 3 by welding or a connecting means such as a bolt and a nut or a rivet (not shown).

更に、上記触媒受け部１０は、中央付近の２つの開口１１を、図１（ａ）（ｂ）に二点鎖線で示した治具８と同様の治具８の係合用突部８ａを差し込むことができるような配置及びサイズとして、該２つの開口１１の間の部分を、上記治具８の係合用突部８ａを係止させて回転方向の力を付与するための係止部７として機能させることができるようにしてある。   Further, the catalyst receiving portion 10 inserts two engaging projections 8a of the jig 8 similar to the jig 8 shown by two-dot chain lines in FIGS. As an arrangement and size that can be used, a portion between the two openings 11 is used as a locking portion 7 for locking the engaging protrusion 8a of the jig 8 and applying a rotational force. It can be made to function.

その他の構成は図１（ａ）（ｂ）（ｃ）に示したものと同様であり、同一のものには同一の符号が付してある。   Other configurations are the same as those shown in FIGS. 1A, 1B, and 1C, and the same components are denoted by the same reference numerals.

本実施の形態の触媒支持装置１Ａによっても、図１（ａ）（ｂ）（ｃ）及び図２の実施の形態の触媒支持装置１と同様に使用することで、同様の効果を得ることができる。   The same effect can be obtained by using the catalyst support device 1A of the present embodiment in the same manner as the catalyst support device 1 of the embodiment of FIGS. 1 (a), (b), and (c) and FIG. it can.

なお、本発明は、上記実施の形態にのみ限定されるものではなく、コイル巻き部３を形成する線材の太さや弾性、コイル巻き部３の外径や巻き数は、適用対象となる多管式反応器の反応管ｔの寸法や、該反応管ｔに充填される触媒ｃの重量、温度条件等に応じて適宜設定すればよい。   In addition, this invention is not limited only to the said embodiment, The thickness and elasticity of the wire which form the coil winding part 3, the outer diameter of the coil winding part 3, and the number of windings are the applicable pipes What is necessary is just to set suitably according to the dimension of the reaction tube t of a type | formula reactor, the weight of the catalyst c with which this reaction tube t is filled, temperature conditions, etc.

図１（ａ）（ｂ）（ｃ）及び図２の実施の形態における触媒受け部４の渦巻形状のピッチや、図３の実施の形態における多孔板形式の触媒受け部１０の開口のサイズや配置や数は、反応管ｔに充填する触媒ｃの粒径や、流体として流通させる原料や反応生成物の性状等に応じて適宜変化させてよいことは勿論である。   1 (a), (b), (c) and the spiral pitch of the catalyst receiving portion 4 in the embodiment of FIG. 2, the size of the opening of the perforated plate type catalyst receiving portion 10 in the embodiment of FIG. Of course, the arrangement and number may be changed as appropriate according to the particle diameter of the catalyst c filled in the reaction tube t, the properties of the raw materials and reaction products to be circulated as a fluid, and the like.

更に、触媒受け部は、反応管ｔに充填される触媒ｃを支持することができると共に、流体の原料や反応生成物を通過させることができるようにしてあれば、図示した触媒受け部４，１０以外の任意の形式のものを採用してもよいことは勿論である。   Further, the catalyst receiving portion can support the catalyst c filled in the reaction tube t and can pass the raw material of the fluid and the reaction product as long as the catalyst receiving portion 4 shown in the figure is provided. Of course, any type other than 10 may be adopted.

係止部７は、コイル巻き部３の内側から触媒受け部４，１０に対してコイル巻き部３の巻きを増加させるように回転させる方向の力を付与できるようにしてあれば、図示した以外の任意の形式の係止部７を採用してもよい。又、上記係止部７に対して上記回転方向の力を付与するための治具は、上記係止部７の形式に応じて適宜変更してよいことは勿論である。   The locking portion 7 is not shown in the drawings as long as it can apply a force in the direction of rotation so as to increase the winding of the coil winding portion 3 from the inside of the coil winding portion 3 to the catalyst receiving portions 4 and 10. Any type of locking portion 7 may be employed. Of course, the jig for applying the rotational force to the locking portion 7 may be appropriately changed according to the type of the locking portion 7.

捩じり力付与部５は、コイル巻き部３の他端側に該コイル巻き部３の巻きを増加させる方向の力を付与することができるように、上記コイル巻き部３の径方向に延びる部分を備えていれば、図示した以外の任意の形状、サイズ、配置に適宜変更してもよいことは勿論である。   The torsional force applying portion 5 extends in the radial direction of the coil winding portion 3 so that a force in the direction of increasing the winding of the coil winding portion 3 can be applied to the other end side of the coil winding portion 3. Of course, as long as a portion is provided, the shape, size, and arrangement other than those illustrated may be changed as appropriate.

挿入量調整部９の長さ寸法は、本発明の触媒支持装置１，１Ａにおける触媒受け部４，１０を、所望される反応管ｔ内の触媒充填領域の下端位置に合わせて配置した状態で、コイル巻き部３の他端から、上記反応管ｔの下端までの距離寸法に応じて適宜変更してもよい。更に、上記のように触媒受け部４，１０を、所望される反応管ｔ内の触媒充填領域の下端位置に合わせて配置した状態で、コイル巻き部３の他端から、上記反応管ｔの下端までの距離寸法がゼロとなる場合は、挿入量調整部９を省略した構成としてよい。   The length of the insertion amount adjusting portion 9 is such that the catalyst receiving portions 4 and 10 in the catalyst support device 1 and 1A of the present invention are arranged in accordance with the lower end position of the desired catalyst filling region in the reaction tube t. The distance from the other end of the coil winding portion 3 to the lower end of the reaction tube t may be changed as appropriate. Furthermore, in the state where the catalyst receiving portions 4 and 10 are arranged in accordance with the lower end position of the desired catalyst filling region in the reaction tube t as described above, the other end of the coil winding portion 3 is connected to the reaction tube t. When the distance dimension to the lower end becomes zero, the insertion amount adjustment unit 9 may be omitted.

その他本発明の要旨を逸脱しない範囲内で種々変更を加え得ることは勿論である。   Of course, various modifications can be made without departing from the scope of the present invention.

１，１Ａ 触媒支持装置、２ 線材、３ コイル巻き部、４ 触媒受け部、５ 捩じり力付与部、６ 開口、７ 係止部、９ 挿入量調整部、１０ 触媒受け部、１１ 開口、ｃ 触媒、ｔ 反応管、ｘ コイル巻き部の外径寸法、ｙ 反応管の内径寸法 1, 1A catalyst support device, 2 wire rod, 3 coil winding portion, 4 catalyst receiving portion, 5 torsional force applying portion, 6 opening, 7 locking portion, 9 insertion amount adjusting portion, 10 catalyst receiving portion, 11 opening, c catalyst, t reaction tube, x outer diameter of coil winding, y inner diameter of reaction tube

Claims (4)

多管式反応器の触媒を充填する反応管の少なくとも重力作用方向に位置する端部に触媒が脱落しないように取り付けるための反応管用触媒支持装置であって、
弾性を有する線材を上記反応管の内径寸法よりも大きい外径寸法を有するコイル形状に巻いたコイル巻き部と、
触媒は通過させないが流体は通過させる大きさの開口を備えて、上記コイル巻き部の軸方向の一端側に設けた触媒受け部と、
上記コイル巻き部の内側から上記触媒受け部に対しコイル巻き部の巻きを増加させるように回転させる方向の力を付与するための係止部と、
上記コイル巻き部の軸方向の他端側に、コイル巻き部の巻きを増加させるように回転させる方向の力を付与するために設けた捩じり力付与部とを備えてなる構成
を有することを特徴とする反応管用触媒支持装置。 A reaction tube catalyst support device for attaching a catalyst tube so that the catalyst does not fall off at least at an end portion of the reaction tube filled with the catalyst of the multi-tubular reactor, which is located in the direction of gravity.
A coil winding portion in which a wire having elasticity is wound in a coil shape having an outer diameter larger than the inner diameter of the reaction tube;
A catalyst receiving portion provided on one end side in the axial direction of the coil winding portion with an opening of a size that does not allow the catalyst to pass but allows the fluid to pass;
A locking portion for applying a force in the direction of rotation so as to increase the winding of the coil winding portion from the inside of the coil winding portion to the catalyst receiving portion,
A structure including a torsional force applying portion provided to apply a force in a rotating direction so as to increase the winding of the coil winding portion on the other end side in the axial direction of the coil winding portion. A reaction tube catalyst support device. コイル巻き部は、軸方向に配列される各周回の線材同士が接するコイル形状とした請求項１記載の反応管用触媒支持装置。   The catalyst support device for a reaction tube according to claim 1, wherein the coil winding portion has a coil shape in which the respective wire rods arranged in the axial direction are in contact with each other. 触媒受け部は、コイル巻き部の軸方向に直交する面内に配置されるものとした請求項１又は２記載の反応管用触媒支持装置。   The catalyst support device for a reaction tube according to claim 1 or 2, wherein the catalyst receiving portion is disposed in a plane orthogonal to the axial direction of the coil winding portion. コイル巻き部と捩じり力付与部との間に、コイル巻き部の軸方向に平行に延びる挿入量調整部を備えるようにした請求項１から請求項３のいずれか一項に記載の反応管用触媒支持装置。   The reaction according to any one of claims 1 to 3, wherein an insertion amount adjusting portion extending in parallel with the axial direction of the coil winding portion is provided between the coil winding portion and the torsional force applying portion. Catalyst support device for pipes.
JP2013091943A 2013-04-25 2013-04-25 Catalyst support device for reaction tube Pending JP2014213256A (en)

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