JP2013100967A - Method of constructing tower boiler - Google Patents

Method of constructing tower boiler Download PDF

Info

Publication number
JP2013100967A
JP2013100967A JP2011245705A JP2011245705A JP2013100967A JP 2013100967 A JP2013100967 A JP 2013100967A JP 2011245705 A JP2011245705 A JP 2011245705A JP 2011245705 A JP2011245705 A JP 2011245705A JP 2013100967 A JP2013100967 A JP 2013100967A
Authority
JP
Japan
Prior art keywords
heat transfer
boiler
boiler body
rear transmission
temperature side
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.)
Granted
Application number
JP2011245705A
Other languages
Japanese (ja)
Other versions
JP5862213B2 (en
Inventor
Yoshinao Kitagawa
慶尚 北川
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.)
IHI Corp
Original Assignee
IHI Corp
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 IHI Corp filed Critical IHI Corp
Priority to JP2011245705A priority Critical patent/JP5862213B2/en
Publication of JP2013100967A publication Critical patent/JP2013100967A/en
Application granted granted Critical
Publication of JP5862213B2 publication Critical patent/JP5862213B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a method of constructing a tower boiler, configured to efficiently construct a rear transfer part formed of a large number of heat transfer pipes, thereby shortening the overall construction period and enhancing safety of operation.SOLUTION: The method of constructing the tower boiler having a boiler body includes the steps of: arranging side by side a plurality of heat transfer pipes constituting the rear transfer part of the tower boiler by a temporary fixing tool in a place other than a construction site of the tower boiler, in a form of the rear transfer part attached to the boiler body; transferring the arranged heat transfer pipes to the construction site while maintaining their state and carrying the heat transfer pipes to below the boiler body under construction; and attaching the heat transfer pipes to the lower part of the boiler body under construction.

Description

本発明は、タワーボイラの建造方法に関する。   The present invention relates to a tower boiler construction method.

従来のボイラとしては、高温ガスの対流伝熱によって流体を加熱する部分(接触伝熱面)を火炉の後側に配置したものが一般的である(例えば、特許文献1参照)。このように火炉の後側に配置された加熱部分は、一般に後部伝熱部(後伝部)と呼ばれている。
これに対してタワーボイラは、前記接触伝熱面、すなわち後部伝熱部を、火炉の上側に配置するようにしたもので、接触伝熱面が火炉の後側に配置されている従来のボイラに比べ、設置スペースが約20%程度少なくなり、したがって据付場所の制約を受けるような場合に好適とされている。
As a conventional boiler, one in which a portion (contact heat transfer surface) for heating a fluid by convective heat transfer of a high-temperature gas is arranged on the rear side of a furnace (for example, see Patent Document 1). Thus, the heating part arrange | positioned at the rear side of a furnace is generally called the rear part heat-transfer part (rear part).
In contrast, the tower boiler is a conventional boiler in which the contact heat transfer surface, that is, the rear heat transfer portion is arranged on the upper side of the furnace, and the contact heat transfer surface is arranged on the rear side of the furnace. Compared to the above, the installation space is reduced by about 20%, so that it is suitable for the case where the installation place is restricted.

このようなタワーボイラは、柱間に形成されたボイラ架構に、吊下材を介してボイラ本体が吊り下げられて支持された構造となっている。
このタワーボイラの建造において、前記ボイラ本体を建造するにあたっては、特に後伝部(後部伝熱部)はボイラ本体の高い位置に取付けられるため、その施工が難しくなっている。すなわち、後伝部の施工にあたっては、通常は後伝部を構成する伝熱管を予め工場で所定形状に曲げ加工しておき、これら伝熱管を現場に搬入する。そして、これら伝熱管を後伝部の構造に組み立てるとともに、ボイラ本体の構造内に組み付ける。
Such a tower boiler has a structure in which a boiler body is suspended and supported by a boiler frame formed between columns via a suspension member.
In the construction of the tower boiler, when the boiler main body is constructed, the rear transmission section (rear heat transfer section) is particularly attached to a high position of the boiler main body, so that the construction is difficult. That is, in the construction of the rear transmission section, usually, the heat transfer tubes constituting the rear transmission section are previously bent into a predetermined shape at the factory, and these heat transfer tubes are carried into the site. And while assembling these heat exchanger tubes in the structure of a rear transmission part, it is assembled | attached in the structure of a boiler main body.

ところが、伝熱管の組み付け等は高所および狭隘な場所での作業となるため、作業性や安全性に問題がある。
そこで、工場等の建造現場以外の場所において伝熱管を後伝部の構造に組み立てて後伝部エレメントとし、この後伝部エレメントを施工現場に搬入してボイラ本体の構造内に組み付けることが考えられる(例えば、特許文献2参照)。
However, assembly of the heat transfer tubes, etc. is a work in a high place and a narrow place, so there is a problem in workability and safety.
Therefore, it is possible to assemble the heat transfer tube into the structure of the rear transmission part at a place other than the construction site such as a factory to make the rear transmission element, and bring this rear transmission element into the construction site and assemble it into the structure of the boiler body. (See, for example, Patent Document 2).

しかし、後伝部を構成する各エレメントは、例えば多数の伝熱管が互いに連結することなく独立してそれぞれ所定状態に配置され、最終的にハンガーチューブ等に固定されることによってボイラ本体内に組み付けられる。したがって、これら多数の伝熱管を予め組み立てて後伝部エレメントをユニット化しておくのは、このユニット(後伝部エレメント)のボイラ本体内への組み付けが終わった後、個々の伝熱管を再度独立させる必要があるため、設計上、非常に困難である。
また、たとえ後伝部エレメントをユニット化したとしても、組みあがったユニットの状態の後伝部エレメントはかなり大きくなるため、工場等から建造現場までのトラック輸送が困難である。
However, each element constituting the rear transmission section is assembled in the boiler body by, for example, arranging a large number of heat transfer tubes independently in a predetermined state without being connected to each other, and finally being fixed to a hanger tube or the like. It is done. Therefore, the assembly of the large number of heat transfer tubes in advance and making the rear transmission element into a unit is that after the assembly of the unit (rear transmission element) into the boiler body is completed, the individual heat transfer tubes are again independent. This is very difficult in design.
Further, even if the rear transmission element is unitized, the rear transmission element in the assembled unit becomes considerably large, so that it is difficult to transport the truck from the factory or the like to the construction site.

したがって、従来では、後伝部エレメントを建造現場以外の場所で組み立てて(ユニット化して)現場に輸送するといった手法を採ることができず、伝熱管を、トラックに載る範囲の形状に曲げ加工された配管の形でトラック輸送し、現場に搬入している。
すなわち、ボイラ本体の下部を空けた状態とし、この空きスペースで搬入された伝熱管を後伝部の構造(後伝部エレメント)に組み立て、その後、組みあがった構造体(後伝部エレメント)をボイラ本体の取付け位置まで吊上げ、ボイラ本体の構造内に組み付けるようにしている。
Therefore, conventionally, a method of assembling the rear transmission element at a place other than the construction site (unitized) and transporting it to the site cannot be taken, and the heat transfer tube is bent into a shape within the range where it can be placed on the truck. It is transported by truck in the form of open pipes and carried to the site.
That is, the lower part of the boiler body is left open, the heat transfer tubes carried in this empty space are assembled into the structure of the rear transmission section (rear transmission section element), and then the assembled structure (rear transmission section element) is assembled. It is lifted up to the boiler body mounting position and assembled in the structure of the boiler body.

特開2006−162137号公報JP 2006-162137 A 特開2002−115804号公報JP 2002-115804 A

ところで、後伝部を形成するための多数の伝熱管については、前記したようにトラックに載る範囲の形状に曲げ加工した形で、トラック輸送にて建造現場に搬入している。その際、伝熱管の曲折した特殊な形状による制限から、輸送効率を高めるべく伝熱管を横に寝かせて積層した状態でトラックの荷台に載せ、現場ではそのままの状態で荷卸しする。
したがって、伝熱管をボイラ本体内に組み付ける際には、寝かされて積層された状態の伝熱管を1本1本立ち上げ、順次接続して後伝部の構造(後伝部エレメント)に組み立てなくてはならず、効率が非常に悪い工程となっていた。そのため、この工程が工期短縮を損なう一因になっており、また、作業の安全性も損なっている。
By the way, a large number of heat transfer tubes for forming the rear transmission portion are carried into the construction site by truck transportation in a form bent to the shape of the range on the truck as described above. At that time, because of the restriction due to the bent special shape of the heat transfer tube, the heat transfer tube is laid side by side and stacked in order to increase transport efficiency, and unloaded at the site as it is.
Therefore, when assembling the heat transfer tubes in the boiler body, the heat transfer tubes in the state of being laid down are stacked one by one and connected in order to assemble the structure of the rear transfer unit (rear transfer unit element) It must be a very inefficient process. For this reason, this process is a cause of impairing the shortening of the work period, and the safety of work is also impaired.

本発明は前記事情に鑑みてなされたもので、その目的とするところは、多数の伝熱管によって形成する後伝部を、より効率的に建造できるようにし、これによって全体の工期短縮を図るとともに、作業の安全性を高めた、タワーボイラの建造方法を提供することにある。   The present invention has been made in view of the above circumstances, and the object of the present invention is to enable more efficient construction of a rear transmission section formed by a large number of heat transfer tubes, thereby shortening the entire construction period. An object of the present invention is to provide a method for constructing a tower boiler with improved work safety.

本発明のタワーボイラの建造方法は、ボイラ本体を有するタワーボイラの建造方法において、
タワーボイラの後伝部を構成する複数の伝熱管を、タワーボイラの建造現場以外の場所で仮固定具によって、前記ボイラ本体に組み付ける後伝部としての形態に並列配置する工程と、
並列配置した前記伝熱管をその状態に保持して前記建造現場に移送し、建造中のボイラ本体の下方に搬入する工程と、
搬入した前記伝熱管を、建造中のボイラ本体の下部に組み付ける工程と、を備えることを特徴とする。
The tower boiler construction method of the present invention is a tower boiler construction method having a boiler body.
A step of arranging a plurality of heat transfer tubes constituting the rear transfer section of the tower boiler in parallel in a form as a rear transfer section assembled to the boiler body by a temporary fixing tool at a place other than the construction site of the tower boiler,
Holding the heat transfer tubes arranged in parallel in that state, transferring them to the construction site, and carrying them under the boiler body under construction;
A step of assembling the carried heat transfer tube to a lower portion of a boiler body under construction.

また、前記タワーボイラの建造方法においては、搬入した前記伝熱管を、建造中のボイラ本体の下部に組み付ける工程では、前記仮固定具で伝熱管を後伝部としての形態に並列配置した状態で行い、伝熱管をボイラ本体の下部に組み付けた後、前記仮固定具を取り外すことが好ましい。   Moreover, in the construction method of the tower boiler, in the process of assembling the carried heat transfer tube to the lower part of the boiler body under construction, the heat transfer tube is arranged in parallel in a form as a rear transmission portion with the temporary fixing tool. Preferably, after the heat transfer tube is assembled to the lower part of the boiler body, the temporary fixing tool is removed.

本発明のタワーボイラの建造方法によれば、複数の伝熱管を、建造現場以外の場所でボイラ本体に組み付ける後伝部としての形態に並列配置しておき、この並列配置した伝熱管を建造現場に移送して建造中のボイラ本体の下方に搬入し、搬入した伝熱管を、建造中のボイラ本体の下部に組み付けるようにしたので、例えば寝かされて積層された状態の伝熱管を建造現場にて1本1本立ち上げる必要がなく、搬入した伝熱管を並列配置状態そのままでボイラ本体の下部に組み付けることが可能になり、よって、作業効率が向上するとともに、作業の困難性も改善される。したがって、全体の工期短縮を図るとともに、作業の安全性を高めることができる。   According to the tower boiler construction method of the present invention, a plurality of heat transfer tubes are arranged in parallel in a form as a rear transmission portion assembled to the boiler main body at a place other than the construction site, and the parallel arranged heat transfer tubes are constructed at the construction site. Since the heat transfer tube that was carried in was assembled to the lower part of the boiler body under construction, for example, a heat transfer tube that had been laid down and stacked was built at the construction site. It is not necessary to start up the pipes one by one, and it is possible to assemble the loaded heat transfer tubes in the lower part of the boiler body as they are in a parallel arrangement, thereby improving work efficiency and improving work difficulty. The Therefore, the overall construction period can be shortened and the safety of work can be improved.

本発明に係るタワーボイラの一例の側断面図である。It is a sectional side view of an example of the tower boiler which concerns on this invention. 図1に示したタワーボイラのA−A線矢視図である。It is an AA arrow directional view of the tower boiler shown in FIG. 伝熱管によって構成される伝熱管パネル及び後伝部エレメントの概略構成図である。It is a schematic block diagram of the heat exchanger tube panel comprised by a heat exchanger tube, and a back transmission element. (a)〜(c)は、本発明の建造方法の一実施形態を説明するための工程図である。(A)-(c) is process drawing for demonstrating one Embodiment of the construction method of this invention. 伝熱管を並列配置して形成した後伝部エレメントの説明図であり、(a)は側面図、(b)は要部正面図である。It is explanatory drawing of the rear transmission part element formed by arrange | positioning a heat exchanger tube in parallel, (a) is a side view, (b) is a principal part front view.

以下、本発明のタワーボイラの建造方法の実施形態を、図面を参照して詳しく説明する。
まず、本発明のタワーボイラの建造方法によって建造されるタワーボイラの一例を、図1、図2を参照して説明する。なお、図1はタワーボイラの一例の側断面図、図2は図1に示したタワーボイラのA−A線矢視図である。
Hereinafter, an embodiment of a tower boiler construction method of the present invention will be described in detail with reference to the drawings.
First, an example of a tower boiler constructed by the tower boiler construction method of the present invention will be described with reference to FIGS. 1 is a side sectional view of an example of a tower boiler, and FIG. 2 is a view taken along the line AA of the tower boiler shown in FIG.

図1、図2に示すようにタワーボイラには、前後側の炉壁1,2(図1参照)と左右側の炉壁3,4(図2参照)とによって水平断面形状が矩形状に形成された、ボイラ本体7が備えられている。このボイラ本体7は、上方に高く延びて形成され、その上端に天井壁6が設けられており、鉄骨8から吊下材5によって吊下げ支持されている。前後側の炉壁1,2および左右側の炉壁3,4は、上下方向に延びる平行な炉壁管9の相互間をフィン(図示せず)で接続してなる、炉壁パネルによって形成されている。   As shown in FIGS. 1 and 2, the tower boiler has a rectangular horizontal cross-sectional shape due to the front and rear furnace walls 1 and 2 (see FIG. 1) and the left and right furnace walls 3 and 4 (see FIG. 2). A formed boiler body 7 is provided. The boiler body 7 is formed to extend upward and is provided with a ceiling wall 6 at its upper end, and is supported by a suspension member 5 from a steel frame 8. The furnace walls 1 and 2 on the front and rear sides and the furnace walls 3 and 4 on the left and right sides are formed by furnace wall panels formed by connecting parallel furnace wall tubes 9 extending in the vertical direction with fins (not shown). Has been.

前記ボイラ本体7の前後側の炉壁1,2の下部位置には、複数のバーナ11が設けられており、前記ボイラ本体7の上端後部には、排ガス出口12が設けられている。この排ガス出口12には、煙道13の上端部が連通しており、該煙道13は排ガス出口12側から下方に延びて配置されている。
また、前記ボイラ本体7内の上下方向中間部から前記排ガス出口12までの間には、本発明における後伝部(後部伝熱部)となる熱交換装置14が設置されている。さらに、前記ボイラ本体7の上下方向中間部位置から上方には、前後側の炉壁1,2及び天井壁6の外部を包囲するようにして、ケーシング15が設けられている。このケーシング15の外周及びボイラ本体7の下部外周には、保温材16が設けられている。
A plurality of burners 11 are provided at lower positions of the furnace walls 1 and 2 on the front and rear sides of the boiler body 7, and an exhaust gas outlet 12 is provided at the rear upper end of the boiler body 7. An upper end portion of the flue 13 communicates with the exhaust gas outlet 12, and the flue 13 is disposed extending downward from the exhaust gas outlet 12 side.
Further, a heat exchanging device 14 serving as a rear transmission portion (rear heat transfer portion) in the present invention is installed between the intermediate portion in the vertical direction in the boiler body 7 and the exhaust gas outlet 12. Further, a casing 15 is provided above the boiler body 7 from the middle in the vertical direction so as to surround the outside of the front and rear furnace walls 1 and 2 and the ceiling wall 6. A heat insulating material 16 is provided on the outer periphery of the casing 15 and the lower outer periphery of the boiler body 7.

前記熱交換装置(後伝部)14は、前記排ガス出口12に近い上部位置(低温部側)に節炭器17を配設している。該節炭器17の下側には、低温側再熱器18、低温側過熱器19、高温側再熱器20、高温側過熱器21、及びハンガーチューブ過熱器22が順次配設されている。
前記節炭器17、低温側再熱器18、低温側過熱器19、高温側再熱器20、高温側過熱器21は、それぞれ、図1に示すようにボイラ本体7内を前後方向に幅全体に亘って延びるパネル状の伝熱管23にて構成されている。このパネル状の伝熱管23は、図2のボイラ本体7内をその左右方向に多数並列された状態で配置されている。
The heat exchanging device (rear transmission portion) 14 is provided with a economizer 17 at an upper position (low temperature portion side) close to the exhaust gas outlet 12. Below the economizer 17, a low temperature side reheater 18, a low temperature side superheater 19, a high temperature side reheater 20, a high temperature side superheater 21, and a hanger tube superheater 22 are sequentially arranged. .
The economizer 17, the low temperature side reheater 18, the low temperature side superheater 19, the high temperature side reheater 20, and the high temperature side superheater 21 each have a width in the front-rear direction inside the boiler body 7 as shown in FIG. It is comprised by the panel-shaped heat exchanger tube 23 extended over the whole. The panel-shaped heat transfer tubes 23 are arranged in a state in which a large number of the heat exchanger tubes 23 in the boiler body 7 in FIG.

伝熱管23は、図3に示すように、予め設計された所定のS字形状(図3では逆S字形状)となるように、工場で複数箇所曲げ加工されて形成されたものである。また、伝熱管23は、それぞれが異なるS字形状となるように曲げ加工され、これらが同一平面上に配列されることにより、前記したようにパネル状に構成されている。すなわち、異なるS字形状の複数の伝熱管23は、互いに所定間隔をおいて同一平面上に配列されて、伝熱管パネル23Aを形成している。   As shown in FIG. 3, the heat transfer tube 23 is formed by bending a plurality of places at a factory so as to have a predetermined S-shape designed in advance (inverse S-shape in FIG. 3). Further, the heat transfer tubes 23 are bent so as to have different S-shapes, and are arranged on the same plane, so that they are configured in a panel shape as described above. That is, the plurality of different S-shaped heat transfer tubes 23 are arranged on the same plane at a predetermined interval to form a heat transfer tube panel 23A.

また、このように形成された伝熱管パネル23Aは、該伝熱管パネル23Aが形成する平面が鉛直方向に立つように配置され、さらに、これら伝熱管パネル23Aが所定間隔をおいて互いの面を対向させて水平方向に複数並列配置されることにより、前記の節炭器17、低温側再熱器18、低温側過熱器19、高温側再熱器20、高温側過熱器21をそれぞれ形成している。すなわち、前記熱交換装置(後伝部)14を構成する節炭器17、低温側再熱器18、低温側過熱器19、高温側再熱器20、高温側過熱器21は、複数の伝熱管23からなる伝熱管パネル23Aが予め設定された所定の形態に配設されたことで、形成されている。   Further, the heat transfer tube panel 23A formed in this way is arranged so that the plane formed by the heat transfer tube panel 23A stands in the vertical direction, and the heat transfer tube panels 23A are arranged with a predetermined interval between each other. A plurality of the economizers 17, the low-temperature side reheater 18, the low-temperature side superheater 19, the high-temperature side reheater 20, and the high-temperature side superheater 21 are formed by being arranged in parallel in the horizontal direction. ing. That is, the economizer 17, the low-temperature reheater 18, the low-temperature superheater 19, the high-temperature reheater 20, and the high-temperature superheater 21 that constitute the heat exchange device (rear transmission section) 14 include a plurality of transmissions. The heat transfer tube panel 23 </ b> A composed of the heat tubes 23 is formed in a predetermined form set in advance.

ここで、これら節炭器17、低温側再熱器18、低温側過熱器19、高温側再熱器20、高温側過熱器21は、本発明では後伝部(熱交換装置14)の一部を構成する形態、すなわち後伝部エレメントとなっている。したがって、本発明では、例えば図3に示したような複数の伝熱管パネル23Aが水平方向に並列配置されてなる後伝部エレメント23Bにより、節炭器17、低温側再熱器18、低温側過熱器19、高温側再熱器20、高温側過熱器21が形成されている。   Here, the economizer 17, the low temperature side reheater 18, the low temperature side superheater 19, the high temperature side reheater 20, and the high temperature side superheater 21 are one of the rear transmission parts (heat exchanger 14) in the present invention. It is the form which comprises a part, ie, a back transmission element. Accordingly, in the present invention, for example, the economizer 17, the low temperature side reheater 18, the low temperature side is provided by the rear transmission element 23B in which a plurality of heat transfer tube panels 23A as shown in FIG. 3 are arranged in parallel in the horizontal direction. The superheater 19, the high temperature side reheater 20, and the high temperature side superheater 21 are formed.

また、前記ハンガーチューブ過熱器22は、上端に備えられたヘッダ24から下方に延設された多数のハンガーチューブ25によって形成されている。すなわち、ハンガーチューブ25の下端が横方向に曲げられたことにより、ハンガーチューブ過熱器22が形成されている。このハンガーチューブ過熱器22も、前記節炭器17、低温側再熱器18、低温側過熱器19、高温側再熱器20、高温側過熱器21と同様に、図3に示したような、複数の伝熱管パネル23Aが水平方向に並列配置されてなる後伝部エレメント23Bによって形成されている。すなわち、ハンガーチューブ25も伝熱管であり、したがって多数のハンガーチューブ25によって形成されたハンガーチューブ過熱器22も、多数の伝熱管(ハンガーチューブ25)からなる後伝部エレメント23Bによって形成されたものとなる。   The hanger tube superheater 22 is formed by a number of hanger tubes 25 extending downward from a header 24 provided at the upper end. That is, the hanger tube superheater 22 is formed by bending the lower end of the hanger tube 25 in the lateral direction. This hanger tube superheater 22 is also similar to the economizer 17, the low temperature side reheater 18, the low temperature side superheater 19, the high temperature side reheater 20, and the high temperature side superheater 21, as shown in FIG. A plurality of heat transfer tube panels 23A are formed by a rear transfer element 23B that is arranged in parallel in the horizontal direction. That is, the hanger tube 25 is also a heat transfer tube. Therefore, the hanger tube superheater 22 formed by a large number of hanger tubes 25 is also formed by a rear transmission element 23B composed of a large number of heat transfer tubes (hanger tubes 25). Become.

また、ハンガーチューブ25は、前記節炭器17、低温側再熱器18、低温側過熱器19、高温側再熱器20、高温側過熱器21のそれぞれの伝熱管23を吊り下げて支持するようになっている。このような構成によって前記の各伝熱管23は、単一の後伝部エレメント23B中では互いに連結されることなく独立した状態に配置され、ハンガーチューブ25によってその位置が固定されるようになっている。また、各後伝部エレメント23B間では、例えば互いに流路が連続する後伝部エレメント23B間で、対応する伝熱管23どうしが他の連結配管(図示せず)を介して溶接等によって接続されている。なお、必要に応じて、ハンガーチューブ25以外の固定部材により、各後伝部エレメント23B(伝熱管23)を炉壁1〜4等に補助的に固定していてもよい。   Further, the hanger tube 25 suspends and supports the heat transfer tubes 23 of the economizer 17, the low temperature side reheater 18, the low temperature side superheater 19, the high temperature side reheater 20, and the high temperature side superheater 21. It is like that. With this configuration, the heat transfer tubes 23 are arranged in an independent state without being connected to each other in the single rear transmission element 23B, and their positions are fixed by the hanger tube 25. Yes. Further, between the rear transmission element 23B, for example, between the rear transmission elements 23B in which the flow paths are continuous with each other, the corresponding heat transfer tubes 23 are connected to each other by welding or the like via other connecting pipes (not shown). ing. If necessary, each rear transmission element 23B (heat transfer tube 23) may be supplementarily fixed to the furnace walls 1 to 4 by a fixing member other than the hanger tube 25.

図1に示すようにボイラ本体7の各炉壁1,2,3,4の炉壁管9の上端には、ドラムあるいはセパレータからなる気水分離装置28が接続されている。これにより、炉壁管9内で加熱された加熱水は、気水分離装置28によって水と蒸気に分離され、水は再びボイラ本体7の炉壁管9に戻されるようになっている。一方、気水分離装置28で分離された蒸気は、前記ハンガーチューブ25のヘッダ24に導かれるようになっている。
なお、ボイラ本体7には、本例では図1中に破線で示すように熱交換装置14の上方、すなわち節炭器17の上方に、ガス流量調節ダンパ32,33が設けられている。
As shown in FIG. 1, a steam / water separator 28 made of a drum or a separator is connected to the upper ends of the furnace wall tubes 9 of the furnace walls 1, 2, 3, 4 of the boiler body 7. Thus, the heated water heated in the furnace wall tube 9 is separated into water and steam by the steam / water separator 28, and the water is returned to the furnace wall tube 9 of the boiler body 7 again. On the other hand, the steam separated by the steam separator 28 is guided to the header 24 of the hanger tube 25.
In the present example, as shown by a broken line in FIG. 1, the boiler body 7 is provided with gas flow rate adjusting dampers 32 and 33 above the heat exchange device 14, that is, above the economizer 17.

このような構成のボイラ本体7にあっては、下方から供給された給水26が、まず、節炭器17に供給される。そして、バーナ11の燃焼によって発生する高温の排ガス27によって加熱された後、給水26はボイラ本体7の下端に供給される。そして、ボイラ本体7の前後側の炉壁1,2及び左右側の炉壁3,4の炉壁管9内を加熱されながら上昇し、上部の気水分離装置28に供給され、ここで水と蒸気に分離される。分離された水は、再びボイラ本体7の炉壁管9に戻される。   In the boiler body 7 having such a configuration, the water supply 26 supplied from below is first supplied to the economizer 17. Then, after being heated by the high-temperature exhaust gas 27 generated by the combustion of the burner 11, the feed water 26 is supplied to the lower end of the boiler body 7. Then, the furnace walls 1 and 2 on the front and rear sides of the boiler body 7 and the furnace wall pipes 9 on the left and right furnace walls 3 and 4 are raised while being heated, and are supplied to the steam-water separator 28 on the upper side. And separated into steam. The separated water is returned to the furnace wall tube 9 of the boiler body 7 again.

一方、気水分離装置28で分離された蒸気は、前記ヘッダ24からハンガーチューブ25に供給されて内部を下降し、ハンガーチューブ過熱器22に導かれて過熱された後、低温側過熱器19に供給され、続いて高温側過熱器21に導かれて過熱され、高温高圧の蒸気となって高圧の蒸気タービン29に供給される。
高圧の蒸気タービン29から出た蒸気は、低温側再熱器18に供給されて再熱された後、高温側再熱器20に導かれて更に過熱され、その後、中圧あるいは低圧の蒸気タービン30に供給されるようになっている。
On the other hand, the steam separated by the steam separator 28 is supplied from the header 24 to the hanger tube 25, descends inside, is led to the hanger tube superheater 22, is overheated, and then enters the low temperature side superheater 19. Then, it is led to the high temperature side superheater 21 to be superheated, and is supplied to the high pressure steam turbine 29 as high temperature high pressure steam.
The steam emitted from the high-pressure steam turbine 29 is supplied to the low-temperature reheater 18 and reheated, and then led to the high-temperature reheater 20 to be further heated, and then the intermediate-pressure or low-pressure steam turbine. 30.

次に、本発明の一実施形態として、前記構成のボイラ本体7を備えたタワーボイラの建造方法を説明する。
本実施形態では、まず、タワーボイラの主柱を4本建造するとともに、これら主柱間にボイラ架構を形成する。なお、図1、図2では、ボイラ架構を鉄骨8として示している。
Next, as an embodiment of the present invention, a tower boiler construction method including the boiler body 7 having the above-described configuration will be described.
In this embodiment, first, four main pillars of a tower boiler are constructed, and a boiler frame is formed between these main pillars. In FIGS. 1 and 2, the boiler frame is shown as a steel frame 8.

次に、図4(a)に示すように、各主柱40の上端にこれらを連結する天井大梁(図示せず)を配設し、該天井大梁間に大梁41を配設し、さらに該大梁41にジャッキ42を設置し固定する。
次いで、ジャッキ42に取り付けたワイヤロープ等の吊り材43に、ボイラ本体7の構成要素を上から順に取り付けつつ、順次吊り上げていく。吊り材43には、適宜な天秤(図示せず)を取り付け、この天秤にボイラ本体7の各構成要素を取り付けてもよい。また、天秤として、最終的に前記天井大梁間に配設する大梁41を用いてもよい。
Next, as shown in FIG. 4A, a ceiling girder (not shown) connecting them to the upper ends of the main pillars 40 is arranged, and a girder 41 is arranged between the ceiling girder, A jack 42 is installed and fixed to the girder 41.
Next, the components of the boiler body 7 are attached to the suspension member 43 such as a wire rope attached to the jack 42 in order from the top while being sequentially lifted. An appropriate balance (not shown) may be attached to the suspension member 43, and each component of the boiler body 7 may be attached to the balance. Moreover, you may use the girder 41 finally arrange | positioned between the said ceiling girder as a balance.

図4(a)では、ガス流量調節ダンパ32、33を吊り上げ、さらにその下に、後伝部(熱交換装置14)の一部を構成する要素、すなわち節炭器17、低温側再熱器18、低温側過熱器19等を構成する各要素、すなわち後伝部エレメント17E〜21Eを、図1に示した配置順に従って順次吊り下げている。また、本実施形態では、高温側過熱器21の下にハンガーチューブ過熱器22を組み付けるべく、該ハンガーチューブ過熱器22を形成するための後伝部エレメント22Eを形成する。   In FIG. 4 (a), the gas flow rate adjusting dampers 32 and 33 are lifted, and further, elements constituting a part of the rear transmission portion (heat exchange device 14), that is, the economizer 17, the low-temperature side reheater. 18, each element which comprises the low temperature side superheater 19, etc., ie, the rear transmission elements 17E-21E, are suspended sequentially according to the arrangement | positioning order shown in FIG. Moreover, in this embodiment, in order to assemble the hanger tube superheater 22 under the high temperature side superheater 21, the rear transmission element 22E for forming the hanger tube superheater 22 is formed.

すなわち、図3に示したように複数の伝熱管23(ハンガーチューブ25)から伝熱管パネル23Aを形成し、さらにこの伝熱管パネル23Aを複数並列配置して、ハンガーチューブ過熱器22としての形態の、後伝部エレメント23B(22E)を形成する。この後伝部エレメント23Bの形成は、タワーボイラの建造現場以外の場所、例えば工場で行う。また、タワーボイラの建造現場が工場から遠い場合には、タワーボイラの建造現場に近くて広い敷地などで、後伝部エレメント23Bの形成を行ってもよい。   That is, as shown in FIG. 3, a heat transfer tube panel 23A is formed from a plurality of heat transfer tubes 23 (hanger tubes 25), and a plurality of heat transfer tube panels 23A are arranged in parallel to form a hanger tube superheater 22. Then, the rear transmission element 23B (22E) is formed. The rear transmission element 23B is formed at a place other than the tower boiler construction site, for example, at a factory. Further, when the construction site of the tower boiler is far from the factory, the rear transmission element 23B may be formed on a large site close to the construction site of the tower boiler.

その際、形成する後伝部エレメント23Bは、各伝熱管23(各伝熱管パネル23A)を、仮固定具によってボイラ本体7に組み付ける形態に並列配置させておく。すなわち、ハンガーチューブ過熱器22となる後伝部エレメント23B(22E)を、その上に配置される高温側過熱器22に組み付けられる形態に、並列配置させておく。   At that time, the rear transmission element 23B to be formed is arranged in parallel in a form in which each heat transfer tube 23 (each heat transfer tube panel 23A) is assembled to the boiler body 7 by a temporary fixing tool. That is, the rear transmission element 23B (22E) serving as the hanger tube superheater 22 is arranged in parallel in a form that is assembled to the high temperature side superheater 22 arranged thereon.

具体的には、図5(a)、(b)に示すように鋼材等からなる底桟45、図5(b)に示すように伝熱管パネル23Aを個々に挟持する挟持柱46、挟持柱46上に設けられた梁47、吊り部材48、などを備えた仮固定具44によって、高温側過熱器22に組み付けられる形態に並列配置させられている。   Specifically, as shown in FIGS. 5 (a) and 5 (b), a bottom beam 45 made of steel or the like, as shown in FIG. 5 (b), a sandwiching column 46 and a sandwiching column for sandwiching the heat transfer tube panel 23A individually. A temporary fixture 44 including a beam 47, a suspension member 48, and the like provided on 46 is arranged in parallel in a form to be assembled to the high temperature side superheater 22.

すなわち、各伝熱管パネル23Aを底桟45上に立てて配置するとともに、図5(b)に示すように一対の挟持柱46間に伝熱管パネル23Aを配置し、その両側を挟持柱46で押さえ、その状態で一対の挟持柱46間をボルト止めすることなどにより、伝熱管パネル23Aを一対の挟持柱46間に固定した状態で挟持する。なお、これら挟持柱46の対は、一つの伝熱管パネル23Aに対して複数配置されている。また、底桟45上に並列配置する伝熱管パネル23Aの数に対応して、それぞれに複数ずつ配設されている。さらに、隣り合う各対どうし間の間隔は、ハンガーチューブ過熱器22における各伝熱管パネル23A間の間隔に対応するように調整されている。   That is, each heat transfer tube panel 23A is arranged upright on the bottom rail 45, and as shown in FIG. 5B, the heat transfer tube panel 23A is arranged between the pair of sandwiching columns 46, and both sides thereof are sandwiched by the sandwiching columns 46. The heat transfer tube panel 23 </ b> A is clamped in a state of being fixed between the pair of clamping columns 46 by, for example, pressing and bolting between the pair of clamping columns 46 in that state. A plurality of pairs of the sandwiching columns 46 are arranged with respect to one heat transfer tube panel 23A. Further, a plurality of heat transfer tube panels 23 </ b> A arranged in parallel on the bottom bar 45 are provided, respectively. Further, the interval between adjacent pairs is adjusted to correspond to the interval between the heat transfer tube panels 23 </ b> A in the hanger tube superheater 22.

したがって、各挟持柱46の対間にそれぞれ伝熱管パネル23Aを立てた状態に配置することにより、これら伝熱管パネル23Aは、ボイラ本体7に組み付ける後伝部としての形態、すなわち後伝部エレメント23B(22E)としての形態に並列配置される。なお、図5(a)に示すように伝熱管パネル23Aは、伝熱管23のそれぞれの両端部が、仮止め材29によって仮固定されている。   Therefore, by arranging the heat transfer tube panels 23A in an upright state between each pair of the sandwiching columns 46, these heat transfer tube panels 23A are configured as a rear transmission portion assembled to the boiler body 7, that is, the rear transmission portion element 23B. (22E) is arranged in parallel. As shown in FIG. 5A, the heat transfer tube panel 23 </ b> A has both end portions of the heat transfer tube 23 temporarily fixed by temporary fixing materials 29.

このようにして並列配置された多数の伝熱管23(ハンガーチューブ25)からなる後伝部エレメント23B(22E)は、並列配置された状態に保持されたままで、吊り部材48によってトラックの荷台に積み上げられる。そして、タワーボイラの建造現場に輸送(移送)される。建造現場では、建造中のボイラ本体7が吊り上げられており、したがって後伝部エレメント23B(22E)は、図4(a)に示すようにその下方に搬入される。なお、後伝部エレメント22E(23B)の、ボイラ本体7の下方への搬入は、敷地が広い場合には直接トラックで行ってもよく、狭い場合には、トラックから降ろした後、仮固定具44で並列配置された状態に固定された後伝部エレメント22E(23B)を、クレーン等によってボイラ本体7の下方に移送(搬入)してもよい。   The rear transmission element 23B (22E) made up of a large number of heat transfer tubes 23 (hanger tubes 25) arranged in parallel in this way is kept on the state of being arranged in parallel and is stacked on the truck bed by the suspension member 48. It is done. And it is transported (transferred) to the construction site of the tower boiler. At the construction site, the boiler main body 7 under construction is lifted, and therefore the rear transmission element 23B (22E) is carried downward as shown in FIG. 4 (a). The rear transmission element 22E (23B) may be carried directly under the boiler body 7 by a truck when the site is large, and when the site is narrow, the temporary fixing tool may be used after being lowered from the truck. The rear transmission element 22E (23B) fixed in the state of being arranged in parallel at 44 may be transferred (carried in) below the boiler body 7 by a crane or the like.

次いで、搬入した伝熱管23(ハンガーチューブ25)からなる後伝部エレメント22E(23B)を、直上に位置する高温側過熱器21の後伝部エレメント21Eに対して位置合わせ(芯合わせ)する。すなわち、各エレメント21E、22Eの対応する部材(例えばハンガーチューブ25)どうしが、平面視して互いに重なるように位置合わせを行う。   Next, the rear transmission element 22E (23B) composed of the carried heat transfer tube 23 (hanger tube 25) is aligned (centered) with the rear transmission element 21E of the high-temperature side superheater 21 located immediately above. That is, alignment is performed so that corresponding members (for example, hanger tubes 25) of the elements 21E and 22E overlap each other in plan view.

次いで、後伝部エレメント22E(23B)を図示しないジャッキ等によって押し上げ、図4(b)に示すように搬入した後伝部エレメント22E(23B)と吊り下げている高温側過熱器21の後伝部エレメント21Eとの間のレベル合わせを行う。すなわち、高温側過熱器21の後伝部エレメント21Eの各部材と、搬入した後伝部エレメント22E(23B)の各部材(ハンガーチューブ25)とが、互いに対応して接続されるものどうし、接続可能となるようにレベル合わせを行う。なお、ここでは、先に吊り上げている、高温側過熱器21の後伝部エレメント21Eまでのボイラ本体7の各要素(後伝部エレメント17E〜21E)等を、ジャッキ42によって少し下げ、搬入した後伝部エレメント22E(23B)と吊り下げた高温側過熱器21の後伝部エレメント21Eとの間のレベル合わせを行うようにしてもよい。   Next, the rear transmission element 22E (23B) is pushed up by a jack or the like (not shown), and the rear transmission element 22E (23B) carried in as shown in FIG. Level matching with the element 21E is performed. That is, each member of the rear transmission element 21E of the high-temperature side superheater 21 and each member (hanger tube 25) of the rear transmission element 22E (23B) carried in are connected in correspondence with each other. Adjust levels as possible. Here, each element (rear transmission element 17E-21E) etc. of the boiler main body 7 up to the rear transmission element 21E of the high-temperature side superheater 21 that has been lifted earlier is slightly lowered by the jack 42 and carried in. You may make it perform level alignment between the rear transmission element 22E (23B) and the rear transmission element 21E of the high temperature side superheater 21 suspended.

その後、後伝部エレメント21Eと後伝部エレメント23B(22E)との間を、鉛直方向に配置されたハンガーチューブ25を介して連結するとともに、これらエレメント間の互いに対応する部材どうしを、溶接等によって接続する。
そして、このようなエレメント間の接続を終了したら、後伝部エレメント23B(22E)から仮固定具44を取り外す。
その後、図4(c)に示すようにジャッキ42によってボイラ本体7の各要素(後伝部エレメント17E〜22E)等を吊り上げ、ボイラ本体7の残りの部分の組み立て(組み付け)を従来と同様にして行う。
Thereafter, the rear transmission element 21E and the rear transmission element 23B (22E) are connected via a hanger tube 25 arranged in the vertical direction, and members corresponding to each other between these elements are welded or the like. Connect by.
And when the connection between such elements is complete | finished, the temporary fixing tool 44 is removed from the rear transmission element 23B (22E).
Thereafter, as shown in FIG. 4 (c), each element of the boiler body 7 (rear transmission elements 17E to 22E) and the like are lifted by the jack 42, and the assembly (assembly) of the remaining part of the boiler body 7 is performed in the same manner as before. Do it.

このようなタワーボイラの建造方法にあっては、複数の伝熱管23(ハンガーチューブ25)を、建造現場以外の場所でボイラ本体7に組み付ける後伝部としての形態に並列配置して後伝部エレメント22E(23B)とし、この後伝部エレメント22E(23B)を建造現場に移送して建造中のボイラ本体7の下方に搬入するようにしたので、複数の伝熱管23を前記形態に並列配置する工程を、工場等の設備が整った広い場所で行うことができ、したがって作業を効率的に、かつ安全に行うことができる。   In such a tower boiler construction method, a plurality of heat transfer tubes 23 (hanger tubes 25) are arranged in parallel in a form as a rear transmission portion that is assembled to the boiler body 7 at a place other than the construction site. The element 22E (23B) is used, and then the transmission element 22E (23B) is transferred to the construction site and carried under the boiler body 7 under construction. Therefore, the plurality of heat transfer tubes 23 are arranged in parallel in the above configuration. The process to be performed can be performed in a wide place equipped with facilities such as a factory, and therefore, work can be performed efficiently and safely.

また、搬入した多数の伝熱管23からなる後伝部エレメント23B(22E)を、単に位置合わせした後、そのまま建造中のボイラ本体7の下部に組み付けるようにしたので、従来のように寝かされて積層された状態の伝熱管を建造現場にて1本1本立ち上げる必要がなく、搬入した後伝部エレメント23B(22E)の各伝熱管23を並列配置状態そのままで、ボイラ本体7の下部に組み付けることができる。
よって、作業効率を従来に比べ格段に向上し、作業の困難性も改善することができ、したがって、全体の工期短縮を図るとともに、作業の安全性を高めることができる。
In addition, since the rear transmission element 23B (22E) composed of a large number of the heat transfer tubes 23 that have been carried in is simply positioned and then assembled as it is to the lower part of the boiler body 7 that is being constructed, it is laid down as before. It is not necessary to start up the heat transfer tubes in a stacked state one by one at the construction site, and after loading, the heat transfer tubes 23 of the heat transfer element 23B (22E) are left in the parallel arrangement state, and the lower part of the boiler body 7 Can be assembled.
Therefore, the work efficiency can be significantly improved as compared with the prior art, and the difficulty of work can be improved. Therefore, the overall construction period can be shortened and the safety of work can be enhanced.

また、搬入した後伝部エレメント23B(22E)を、建造中のボイラ本体7の下部に組み付ける工程では、仮固定具44で各伝熱管23を後伝部としての形態に並列配置した状態で行い、各伝熱管23をボイラ本体7の下部に組み付けた後、仮固定具44を取り外すようにしたので、対応する伝熱管どうしの溶接等による接続の際にも、搬入した後伝部エレメント23B(22E)側の伝熱管23が安定した状態に固定されているため、溶接等の作業がより容易になり、作業効率が従来に比べ格段に向上する。   Moreover, in the process of assembling the rear transmission section element 23B (22E) carried into the lower portion of the boiler body 7 under construction, the heat transfer tubes 23 are arranged in parallel in the form of the rear transmission section with the temporary fixing tool 44. Since each temporary heat transfer tube 23 is assembled to the lower part of the boiler body 7 and the temporary fixing tool 44 is removed, the transfer element 23B ( Since the heat transfer tube 23 on the 22E) side is fixed in a stable state, the work such as welding becomes easier, and the work efficiency is remarkably improved as compared with the conventional case.

なお、本発明は前記実施形態に限定されることなく、本発明の主旨を逸脱しない範囲で種々の変更が可能である。
例えば、前記実施形態では、ハンガーチューブ過熱器22を形成するための伝熱管23(ハンガーチューブ25)を、ボイラ本体7に組み付けられてハンガーチューブ過熱器22となる形態の後伝部エレメント23B(22E)に並列配置させ、この後伝部エレメント23B(22E)を建造現場にてボイラ本体7に組み付けるようにしたが、後伝部、すなわち熱交換装置14の構成要素であれば、ハンガーチューブ過熱器22以外の節炭器17、低温側再熱器18、低温側過熱器19、高温側再熱器20、高温側過熱器21についても、同様にして後伝部エレメント23Bの形態に並列配置させ、これを建造現場にてボイラ本体7に組み付けるようにしてもよい。
The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the gist of the present invention.
For example, in the above-described embodiment, the heat transfer tube 23 (hanger tube 25) for forming the hanger tube superheater 22 is assembled to the boiler body 7 to form the hanger tube superheater 22 and the rear transfer element 23B (22E). The rear transmission element 23B (22E) is assembled to the boiler body 7 at the construction site, but if it is a rear transmission section, that is, a component of the heat exchange device 14, the hanger tube superheater Similarly, the economizer 17, the low temperature side reheater 18, the low temperature side superheater 19, the high temperature side reheater 20, and the high temperature side superheater 21 other than 22 are arranged in parallel in the form of the rear transmission element 23B. This may be assembled to the boiler body 7 at the construction site.

7…ボイラ本体、14…熱交換装置(後伝部)、17…節炭器、18…低温側再熱器、19…低温側過熱器、20…高温側再熱器、21…高温側過熱器、22…ハンガーチューブ過熱器、23…伝熱管、23A…伝熱管パネル、23B…後伝部エレメント、17E〜22E…後伝部エレメント、44…仮固定具 DESCRIPTION OF SYMBOLS 7 ... Boiler main body, 14 ... Heat exchange apparatus (rear transmission part), 17 ... Eco-saving device, 18 ... Low temperature side reheater, 19 ... Low temperature side superheater, 20 ... High temperature side reheater, 21 ... High temperature side overheating , 22 ... Hanger tube superheater, 23 ... Heat transfer tube, 23A ... Heat transfer tube panel, 23B ... Rear transmission element, 17E-22E ... Rear transmission element, 44 ... Temporary fixture

Claims (2)

ボイラ本体を有するタワーボイラの建造方法において、
タワーボイラの後伝部を構成する複数の伝熱管を、タワーボイラの建造現場以外の場所で仮固定具によって、前記ボイラ本体に組み付ける後伝部としての形態に並列配置する工程と、
並列配置した前記伝熱管をその状態に保持して前記建造現場に移送し、建造中のボイラ本体の下方に搬入する工程と、
搬入した前記伝熱管を、建造中のボイラ本体の下部に組み付ける工程と、を備えることを特徴とするタワーボイラの建造方法。
In the construction method of a tower boiler having a boiler body,
A step of arranging a plurality of heat transfer tubes constituting the rear transfer section of the tower boiler in parallel in a form as a rear transfer section assembled to the boiler body by a temporary fixing tool at a place other than the construction site of the tower boiler,
Holding the heat transfer tubes arranged in parallel in that state, transferring them to the construction site, and carrying them under the boiler body under construction;
And a step of assembling the carried heat transfer tube to a lower part of a boiler body under construction.
搬入した前記伝熱管を、建造中のボイラ本体の下部に組み付ける工程では、前記仮固定具で伝熱管を後伝部としての形態に並列配置した状態で行い、伝熱管をボイラ本体の下部に組み付けた後、前記仮固定具を取り外すことを特徴とする請求項1記載のタワーボイラの建造方法。   In the step of assembling the carried heat transfer tube to the lower part of the boiler body under construction, the heat transfer tube is arranged in parallel with the temporary fixing tool in the form of a rear transfer part, and the heat transfer tube is assembled to the lower part of the boiler body. The tower boiler construction method according to claim 1, wherein the temporary fixing tool is removed.
JP2011245705A 2011-11-09 2011-11-09 How to build a tower boiler Active JP5862213B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2011245705A JP5862213B2 (en) 2011-11-09 2011-11-09 How to build a tower boiler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011245705A JP5862213B2 (en) 2011-11-09 2011-11-09 How to build a tower boiler

Publications (2)

Publication Number Publication Date
JP2013100967A true JP2013100967A (en) 2013-05-23
JP5862213B2 JP5862213B2 (en) 2016-02-16

Family

ID=48621731

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2011245705A Active JP5862213B2 (en) 2011-11-09 2011-11-09 How to build a tower boiler

Country Status (1)

Country Link
JP (1) JP5862213B2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5918305A (en) * 1982-07-23 1984-01-30 三菱重工業株式会社 Method of assembling hanging type boiler
JPH09229304A (en) * 1996-02-20 1997-09-05 Mitsubishi Heavy Ind Ltd Construction technique of tower type boiler plant
JPH1061902A (en) * 1996-08-16 1998-03-06 Babcock Hitachi Kk Installation method and installation structure for horizontal heat transfer pipes
JPH11281002A (en) * 1998-03-27 1999-10-15 Babcock Hitachi Kk Method for assembling and installing heat recovery apparatus in boiler and jig for assembling heat recovery apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5918305A (en) * 1982-07-23 1984-01-30 三菱重工業株式会社 Method of assembling hanging type boiler
JPH09229304A (en) * 1996-02-20 1997-09-05 Mitsubishi Heavy Ind Ltd Construction technique of tower type boiler plant
JPH1061902A (en) * 1996-08-16 1998-03-06 Babcock Hitachi Kk Installation method and installation structure for horizontal heat transfer pipes
JPH11281002A (en) * 1998-03-27 1999-10-15 Babcock Hitachi Kk Method for assembling and installing heat recovery apparatus in boiler and jig for assembling heat recovery apparatus

Also Published As

Publication number Publication date
JP5862213B2 (en) 2016-02-16

Similar Documents

Publication Publication Date Title
ES2370317B2 (en) ASSEMBLY PROCEDURE OF A STEAM GENERATOR.
ES2234719T3 (en) STEAM GENERATOR AND ASSEMBLY PROCEDURE FOR THE SAME.
WO2005012790A1 (en) Heat exchanger tube panel module, and method of constructing exhaust heat recovery boiler using the module
JP2007085590A (en) Scaffold for checking large component for boiler and its construction method
JP6923999B2 (en) Collar-supported pressure-resistant part for waste heat recovery steam generator
JP2007107789A (en) Installation method of boiler equipment
JP2012523540A (en) Thermal power plant
JP5862213B2 (en) How to build a tower boiler
TWI791439B (en) Heat exchanger for a boiler and assembly facilitation apparatus for a heat exchanger
JP2017521630A (en) Modular waste heat recovery boiler structure
JPH0418205B2 (en)
CN106066034A (en) Heat exchange surface is linked the method for boiler primary structure, boiler and boiler module
US2916263A (en) Fluid heat exchange apparatus
JP2002213707A (en) Separate type boiler plant and its building method
EP3249293B1 (en) Hot water boiler
JP6932722B2 (en) Bottom support type boiler
JP3801267B2 (en) Installation method and structure of horizontal heat transfer tube group
JP2003222302A (en) Constructing method of exhaust heat recovery boiler and heat transfer tube panel block used in method
JP2007107787A (en) Installation method of boiler facility
JP4939060B2 (en) Waste heat recovery boiler and method for assembling the boiler.
JP7178256B2 (en) PIPE WELDING JIG AND METHOD FOR MANUFACTURING TUBE BUNDLE MODULE
JP7465792B2 (en) Support mechanism for heat recovery steam generator
WO2014050259A1 (en) Steam generator and assembly method for steam generator
CN212158221U (en) Gas-gas heat exchanger in furnace under high-temperature large span
JP5611678B2 (en) Boiler equipment

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20140929

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20150615

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20150707

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20150826

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A821

Effective date: 20150827

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20151020

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20151104

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A821

Effective date: 20151105

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20151201

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20151214

R151 Written notification of patent or utility model registration

Ref document number: 5862213

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R151

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250