JPS61106904A - Cross-over pipe - Google Patents
Cross-over pipeInfo
- Publication number
- JPS61106904A JPS61106904A JP22835584A JP22835584A JPS61106904A JP S61106904 A JPS61106904 A JP S61106904A JP 22835584 A JP22835584 A JP 22835584A JP 22835584 A JP22835584 A JP 22835584A JP S61106904 A JPS61106904 A JP S61106904A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- steam
- bellows
- tie rod
- section
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F7/00—Casings, e.g. crankcases or frames
- F02F7/0021—Construction
- F02F7/0034—Built from sheet material and welded casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F7/00—Casings, e.g. crankcases or frames
- F02F7/0043—Arrangements of mechanical drive elements
- F02F7/0046—Shape of casings adapted to facilitate fitting or dismantling of engine parts
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
Description
【発明の詳細な説明】 〔発明の技術分野〕 本発明は蒸気タービンのクロスオーバ管にｒＩＡｔる。[Detailed description of the invention] [Technical field of invention] The present invention applies to a crossover pipe of a steam turbine.
一般に、タイロッド、型クロスオーバ管は主どしてタン
デムコンパウンド型大形タービンで使われ、高圧及び中
圧タービンで仕事した蒸気を低圧タービンに導くための
ものである。In general, tie rod type crossover pipes are mainly used in tandem compound type large-scale turbines, and are used to guide steam worked in high-pressure and intermediate-pressure turbines to a low-pressure turbine.
第５図は前記クロスオーバ管を示し、上半分に外形を、
下半分に断面を示す正面図で、第６図はその右側面図で
ある。FIG. 5 shows the crossover pipe, with the outer shape shown in the upper half,
FIG. 6 is a front view showing a cross section in the lower half, and FIG. 6 is a right side view thereof.
高圧及び中圧タービンのケーシング（図示せず）に排気
フランジ（図示せず）で固着された直管１にベローズ２
を介してエルボ管３が接続され、このエルボ管３は抽気
フランジ４で低圧タービンのケーシング（図示せず）に
固着されており、前記直管及びエルボ管は高圧及び中圧
タービンからの蒸気流Ｓを低圧タービンに導く蒸気フロ
ー部Ｆを形成している。A bellows 2 is attached to a straight pipe 1 fixed to the casing (not shown) of a high-pressure and intermediate-pressure turbine with an exhaust flange (not shown).
through which an elbow pipe 3 is connected, which elbow pipe 3 is fixed to the casing (not shown) of the low-pressure turbine with a bleed flange 4, said straight pipe and elbow pipe being connected to the steam flow from the high-pressure and intermediate-pressure turbines. It forms a steam flow section F that guides S to the low pressure turbine.
また前記エルボ管３の曲管部３ａには連通管５ｊ、、、
が固着され、この連通管５はベローズ６を介
してマンホール８を有した蒸気貯留管７と接続して蒸気
バランス部Ｂを形成している。この蒸気バランス部Ｂは
前記エルボ管の曲管部３ａに設けられた穴（図示せず）
により蒸気フロー部Ｆと連通しており、前記蒸気流Ｓが
スムーズに低圧タービンに導かれるために設けられてい
る。In addition, the bent pipe portion 3a of the elbow pipe 3 has communication pipes 5j,...
This communicating pipe 5 is connected via a bellows 6 to a steam storage pipe 7 having a manhole 8 to form a steam balance section B. This steam balance part B is a hole (not shown) provided in the bent pipe part 3a of the elbow pipe.
It communicates with the steam flow section F, and is provided so that the steam flow S can be smoothly guided to the low pressure turbine.
前記直管１及び連通管５はそれぞれ前記ベローズ２，６
を覆うよう形成され、このベローズ２゜６はタービンケ
ーシング側の軸方向の延びとクロスオーバ管自体の軸方
向の延びの差を吸収する。The straight pipe 1 and the communication pipe 5 are connected to the bellows 2 and 6, respectively.
This bellows 2.6 absorbs the difference between the axial extension of the turbine casing side and the axial extension of the crossover pipe itself.
前記ベローズ２，６の内周にはその管長がベローズより
大きい保護筒９，１ｏが設けられ、この保護筒９，１０
の一端はそれぞれ蒸気流上流側端部のフランジ９ａ、１
０ａを介して前記直管１及び連通管５と溶着され、それ
らの細端は自由となっている。これにより前記保護筒９
．１０外周面とベローズ２．６との間には所定のクリア
ランスが形成され、保護筒とベローズは接触しない。ま
たこの保護筒によりベローズは隠蔽され直接蒸気あ、。Protective tubes 9, 1o are provided on the inner peripheries of the bellows 2, 6, the pipe length of which is larger than that of the bellows, and these protective tubes 9, 10
One end is a flange 9a, 1 at the upstream end of the steam flow, respectively.
It is welded to the straight pipe 1 and the communicating pipe 5 through the 0a, and their narrow ends are free. As a result, the protection tube 9
．． A predetermined clearance is formed between the outer peripheral surface of 10 and the bellows 2.6, and the protective cylinder and the bellows do not come into contact with each other. Also, this protective tube hides the bellows and allows direct steam flow.
より。い。１１、ヶヵ、ケイ、ヶ、。、よ。 （
・い。またベローズは捩れ等の異常変形に弱いが、前記
保護筒が変形力を受けるのでベローズは保護される。Than. stomach. 11, months, days, months. ,Yo. (
·stomach. Further, although the bellows is susceptible to abnormal deformation such as twisting, the bellows is protected because the protective tube receives the deforming force.
また前記蒸気貯留管７はベローズ６を介して接続されて
いるだけで前記直管１あるいはエルボ管３のように支持
、固定されていない。このため蒸気貯留管７を支持しり
１］スオ一バ管全体の形状を維持するために、前記直管
１及び蒸気貯留管７にはタイロッドフランジ１１ａ、１
１ｂが設（Ｊられ、このフランジ間に設けられた複数の
タイロッド１２をナツト１３で固定して蒸気貯留管７を
蒸気フロー部Ｆに支持、固定している。Further, the steam storage pipe 7 is only connected via the bellows 6 and is not supported or fixed like the straight pipe 1 or the elbow pipe 3. Therefore, in order to support the steam storage pipe 7 and maintain the overall shape of the soaker pipe, tie rod flanges 11a and 1 are attached to the straight pipe 1 and the steam storage pipe 7.
1b is provided (J), and a plurality of tie rods 12 provided between the flanges are fixed with nuts 13 to support and fix the steam storage pipe 7 to the steam flow section F.
第７図は前記蒸気バランス部Ｂの拡大図で、第８図はそ
の■−■線に沿う断面図である。FIG. 7 is an enlarged view of the steam balance section B, and FIG. 8 is a cross-sectional view taken along the line -■.
蒸気流Ｓの一部が蒸気バランス部Ｂに流入し前記蒸気貯
留管７内に蒸気が充満すると、タイロッドがあるにもか
かわらず蒸気貯留管７は自重による下方への変形や捩り
変形により前記連通管５と変位を生じ、前記ベローズ６
が下方に撓む恐れがある。この相対偏位を制限するため
に、前記保護筒１０の自由端には保護筒の軸線を水平に
切る位−５−喝＾
置に切欠き１４が設けられ、この切欠き１４と蒸気貯留
管７内に管直径を通るよう水平に溶着されたストッパ用
丸棒１５とが係合しており、この保護筒１０により前記
ベローズ６は捩れ等の変形から保護される。すなわち前
記保護筒は前記連通管と蒸気貯留管とを連結してベロー
ズの変形を防止する補強部材として働く。When a part of the steam flow S flows into the steam balance part B and the steam storage pipe 7 is filled with steam, the steam storage pipe 7 deforms downward due to its own weight and twists, despite the presence of the tie rod, and the communication is interrupted. causing a displacement with the tube 5, and the bellows 6
may bend downward. In order to limit this relative deviation, a notch 14 is provided at the free end of the protection tube 10 at a position where the axis of the protection tube is cut horizontally. A stopper round bar 15 horizontally welded to pass through the tube diameter is engaged within the bellows 7, and the bellows 6 is protected from deformation such as twisting by the protection tube 10. That is, the protection tube serves as a reinforcing member that connects the communication pipe and the steam storage pipe to prevent deformation of the bellows.
このようなりロスオーバ管において研究の結果、蒸気流
Ｓは蒸気バランス部Ｂにはほとんど流入しないことがわ
かった。このため蒸気バランス部では前記ベローズ６を
蒸気流より保護するために隠蔽する必要がない。As a result of research on such a lossover pipe, it was found that almost no steam flow S flows into the steam balance section B. Therefore, in the steam balance section, there is no need to hide the bellows 6 to protect it from the steam flow.
また前記蒸気貯留管７のマンホール８より内部に入って
前記ベローズ２．６をそれぞれ点検する時は、蒸気フロ
ー部側ベローズ２は前記保護筒９を溶着部近傍で切断し
、図示してない高圧及び中圧タービン側のベローズによ
り前記直管１を軸方向に移動して点検できるが、蒸気バ
ランス部のベローズ６は前記保護筒１０を切断しても前
記連通管５がエルボ管３に固着しているので軸方向に移
動することができず点検が困難である。Further, when entering the interior through the manhole 8 of the steam storage pipe 7 and inspecting the bellows 2, 6, the steam flow section side bellows 2 cuts the protective tube 9 near the welded part and presses a high pressure (not shown). The straight pipe 1 can be moved axially and inspected using the bellows on the intermediate pressure turbine side, but the bellows 6 of the steam balance section prevents the communicating pipe 5 from sticking to the elbow pipe 3 even if the protective tube 10 is cut. Since it cannot be moved in the axial direction, inspection is difficult.
このため蒸気バランス部のベローズ６を点検するには、
蒸気貯留管７の鏡板７ａを周溶接部１６で切断し、スト
ッパ用九棒１５及び保護筒１ｏを取り外して丈施しなけ
ればならない。また点検後復旧するには、前記鏡板７ａ
の新製交換や溶接組立に伴う水圧試験の実施が必要とな
る。このため前記点検作業は工場搬入を必要とし、また
相当の時間及び費用がかかる。Therefore, to check the bellows 6 of the steam balance section,
The end plate 7a of the steam storage pipe 7 must be cut at the circumferential welded portion 16, and the stopper bar 15 and the protective tube 1o must be removed and lengthened. In addition, in order to restore after inspection, the mirror plate 7a
It will be necessary to replace the parts with new ones and conduct water pressure tests for welding and assembly. Therefore, the above-mentioned inspection work requires transportation to the factory, and also requires a considerable amount of time and cost.
また保護筒とベローズとのクリアランスが狭いために、
前記保護筒が蒸気流で微振動を起したり異常変形により
ベローズが損傷することがあった。Also, because the clearance between the protective tube and the bellows is narrow,
The protective cylinder may cause slight vibrations due to the steam flow, or the bellows may be damaged due to abnormal deformation.
そこで本発明はかかる欠点に鑑みなされたもので、蒸気
バランス部のベローズの点検、補修が容易でかつベロー
ズの１０傷を防止するにうにしたクロスオーバ管を提供
することを目的とする。SUMMARY OF THE INVENTION The present invention has been made in view of these drawbacks, and it is an object of the present invention to provide a crossover pipe in which the bellows of the steam balance section can be easily inspected and repaired, and which can prevent damage to the bellows.
本発明はかかる目的達成のため、タービンケーシングに
接続された直管にエルボ管を連設して蒸気フロー部を形
成し、前記エルボ管の曲管部に送られる蒸気流のバラン
スをとるための蒸気バランス部を取付【プ、この蒸気バ
ランス部は前記曲管部に固着された連通管と、この連通
管にベローズを介して伸縮自在に嵌め込まれる蒸気貯留
管とからなる蒸気タービンのクロスオーバ管において、
前記蒸気貯留管が連通管に対して相対的に捩れたり、自
重によって下方に下がったりしないようにするための補
強ガイド部材を前記ベローズが蒸気バランス部内におい
て露出するように設けたものである。In order to achieve such an object, the present invention includes an elbow pipe connected to a straight pipe connected to a turbine casing to form a steam flow section, and a method for balancing the steam flow sent to the bent pipe section of the elbow pipe. Installing the steam balance section [This steam balance section is a crossover pipe of a steam turbine consisting of a communication pipe fixed to the bent pipe section and a steam storage pipe that is telescopically fitted into the communication pipe via a bellows. In,
A reinforcing guide member for preventing the steam storage pipe from twisting relative to the communication pipe or falling downward due to its own weight is provided so that the bellows is exposed within the steam balance section.
以下本発明を図示する実施例に基づいて説明する。なお
、従来と同一の部分については同一の符号を用い、その
説明は省略する。The present invention will be described below based on illustrated embodiments. Note that the same reference numerals are used for the same parts as in the prior art, and the explanation thereof will be omitted.
第１図は第１の実施例の蒸気バランス部拡大図で、第２
図はそのＩＴ−ＩＴ線に沿う断面図である。Figure 1 is an enlarged view of the steam balance section of the first embodiment;
The figure is a sectional view taken along the IT-IT line.
連通管５内周面には、Ｌ字形リブ１７の一端が溶着され
、この・リブ１７はベローズ６の内側をベローズに沿う
方向に延在して所定の間隔で複数放剣状に設けられてい
る。また前記リブ１７の熱気貯留管７内に延在する細端
部分１７ａにはリング状スリーブ１８が固着され、前記
リブ１７とスリーブ１８は蒸気貯留管７のための補強ガ
イド部材を形成する。このスリーブ１８には軸線を水平
に切る位置にマンホール８側に開口する切欠き１４が設
けられ、この切欠き１４が前記蒸気貯留管７内周面に植
設されたビン１５ａと係合する。また前記スリーブ１８
と対向する蒸気貯留管７内周面には環状スペーサ１つが
溶着され、このスペーサ１９とスリーブ１８が当接した
時前記リブ１７とベローズ６どの間に所定のクリアラン
スが保たれるよう前記スペーサ１９とスリーブ１７の間
隙は決められる。One end of an L-shaped rib 17 is welded to the inner peripheral surface of the communication pipe 5, and the ribs 17 extend inside the bellows 6 in a direction along the bellows, and are provided in a plurality of sword-like shapes at predetermined intervals. There is. A ring-shaped sleeve 18 is fixed to a narrow end portion 17a of the rib 17 extending into the hot air storage pipe 7, and the rib 17 and sleeve 18 form a reinforcing guide member for the steam storage pipe 7. This sleeve 18 is provided with a notch 14 that opens toward the manhole 8 at a position where the axis is cut horizontally, and this notch 14 engages with a bottle 15a implanted on the inner peripheral surface of the steam storage pipe 7. In addition, the sleeve 18
An annular spacer is welded to the inner circumferential surface of the steam storage pipe 7 facing the spacer 19 so that a predetermined clearance is maintained between the rib 17 and the bellows 6 when the spacer 19 and the sleeve 18 come into contact with each other. The gap between the sleeve 17 and the sleeve 17 is determined.
このようなりロスオーバ管では、前記蒸気貯留管７と連
通管５との相対変位は前記ビン１５ａとスリーブ１８と
の係合により制限され、前記リブ１７及びスリーブ１８
は前記連通管と蒸気貯留管とを連結してベローズの変形
を防止する補強ガイド部材として働き、また前記リブ１
７とベローズ６とのクリアランスが広くとられているの
でリブがベローズに接触してベローズを損傷することは
ない。In such a lossover pipe, the relative displacement between the steam storage pipe 7 and the communication pipe 5 is limited by the engagement between the bin 15a and the sleeve 18, and the rib 17 and the sleeve 18
The rib 1 serves as a reinforcing guide member that connects the communication pipe and the steam storage pipe to prevent deformation of the bellows.
Since the clearance between the ribs 7 and the bellows 6 is wide, the ribs will not come into contact with the bellows and damage the bellows.
また前記蒸気貯留管７内部から見れば前記ベローズ６を
隠蔽する保護筒１０のかわりに複数のリブ１７が設けら
れているので、蒸気貯留管を切断することなく前記マン
ホール８から管内に入るだけでベローズの点検、補修が
できる。これにより前記点検作業は工場へ搬入すること
な〈実施でき、また溶接組立時に水圧試験の実施や新し
い部品（例えば鏡板）を使う必要もなく、労力及び費用
の点で大幅な軽減が可能となる。Also, when viewed from inside the steam storage pipe 7, a plurality of ribs 17 are provided in place of the protective tube 10 that hides the bellows 6, so that the steam storage pipe can be entered into the pipe through the manhole 8 without cutting it. Bellows can be inspected and repaired. As a result, the above inspection work can be carried out without transporting it to the factory, and there is no need to perform a water pressure test or use new parts (such as a head plate) during welding assembly, making it possible to significantly reduce labor and costs. .
第３図は第２の実施例を示す正面図で、第４図はそのＩ
Ｖ−ＩＶ線に沿う断面図である。FIG. 3 is a front view showing the second embodiment, and FIG. 4 is its I
It is a sectional view along the V-IV line.
前記蒸気貯留管７の外周に設けられたタイロッドフラン
ジ１１ｂと、前記連通管５の外周に固着された支持フラ
ンジ２０と、前記タイロッドフランジ１１ｂと支持７ラ
ンジ２０の孔２１を通って前記直管１に向かって延びる
タイロッド１２は、蒸気貯留管７のための補強ガイド部
材を形成する。The straight pipe 1 passes through the tie rod flange 11b provided on the outer periphery of the steam storage pipe 7, the support flange 20 fixed to the outer periphery of the communication pipe 5, and the hole 21 of the tie rod flange 11b and the support 7 flange 20. The tie rods 12 extending towards the steam storage pipe 7 form a reinforcing guide member for the steam storage pipe 7.
また前記タイロッド１２の蒸気貯留管端は、蒸気貯留管
７が蒸気フロー部Ｆ側へ移動できるにう前記タイロッド
フランジ１１ｂに係止されている。Further, the steam storage pipe end of the tie rod 12 is locked to the tie rod flange 11b so that the steam storage pipe 7 can move toward the steam flow section F side.
また前記孔２１とタイロッド１２とには僅かな遊びが設
けられており、蒸気貯留管７の自重による下方への変形
や捩り変形による蒸気貯留管７と連通管５との相対変位
（タイロッド１２の変位に相当する）は、前記支持フラ
ンジ２０でタイロッド１２を拘束することにＪ：り制限
できる。In addition, a slight play is provided between the hole 21 and the tie rod 12, and the relative displacement between the steam storage pipe 7 and the communication pipe 5 due to downward deformation or torsional deformation of the steam storage pipe 7 due to its own weight (the relative displacement of the tie rod 12) (corresponding to the displacement) can be limited to restraining the tie rod 12 with the support flange 20.
本実施例の場合、前記フランジ１１ｂ、２０とタイロッ
ド１２とが連通管５と蒸気貯留管７を連結してベローズ
６の変形を防止する補強ガイド部材として働ぎ、前記ベ
ローズ６内周には補強部材は一切設けられていない。こ
のため、ベローズ６の点検、補修はさらに容易となり、
また構造が簡単なため製造コストの低減化をもたらす。In the case of this embodiment, the flanges 11b and 20 and the tie rod 12 serve as reinforcing guide members that connect the communication pipe 5 and the steam storage pipe 7 to prevent deformation of the bellows 6, and the inner periphery of the bellows 6 is reinforced. No parts are provided. Therefore, inspection and repair of the bellows 6 becomes easier.
Furthermore, since the structure is simple, manufacturing costs can be reduced.
なお本発明は前記低圧ケーシング側蒸気バラン１、
２ ′＋７）＜ ＯＸ Ｉ； ｍ ’Ｂ ｎ ＜５ ”
ｂ （７）Ｔ” ！ｒ“″・”７４気流にさらされない
ベローズならば高圧及び中圧ケーシングのベローズにも
適用できる。Note that the present invention provides the low pressure casing side steam balun 1,
2′+7)<OX I; m′Bn<5”
b (7)T"!r""・"74It can also be applied to bellows of high pressure and medium pressure casings as long as they are not exposed to airflow.
以上説明した通り、本発明はタービンケーシングに接続
された直管にエルボ管を連設して蒸気フロー部を形成し
、前記エルボ管の曲管部に送られる蒸気流のバランスを
とるための蒸気バランス部を取付け、この蒸気バランス
部は前記曲管部に固着された連通管と、この連通管にベ
ローズを介して伸縮自在に嵌め込まれる蒸気貯留管とか
らなる蒸気タービンのクロスオーバ管において、前記蒸
気貯留管が連通管に対して相対的に捩れたり、自重によ
って下方に下がったりしないようにするための補強ガイ
ド部材を前記ベローズが蒸気バランス部内において露出
するように設けたので接触あるいは異常変形によるベロ
ーズの損傷を防止でき、またベローズの点検、補修が容
易となり労力、費用の大幅な軽減が可能となる。As explained above, the present invention connects an elbow pipe to a straight pipe connected to a turbine casing to form a steam flow section, and provides steam for balancing the steam flow sent to the bent pipe section of the elbow pipe. In a crossover pipe for a steam turbine, a balance part is attached, and the steam balance part is composed of a communication pipe fixed to the bent pipe part and a steam storage pipe telescopically fitted into the communication pipe via a bellows. In order to prevent the steam storage pipe from twisting relative to the communication pipe or falling downward due to its own weight, a reinforcing guide member is provided so that the bellows is exposed in the steam balance section, thereby preventing contact or abnormal deformation. Damage to the bellows can be prevented, and inspection and repair of the bellows can be facilitated, making it possible to significantly reduce labor and costs.
第１図は本発明の実施例を示す拡大図、第２図は第１図
のＩ［−Ｉ線に沿う断面図、第３図は別の−１１一
実施例を示す正面図、第４図は第３図のＩＶ 、−ＩＶ
線に沿う断面図、第５図は上半分に外形を、下半分に断
面を示すクロスオーバ管の正面図、第６図は第５図の右
側面図、第７図はクロスオーバ管の蒸気バランス部拡大
図、第８図は第７図の■−■線に沿う断面図を示す。
１・・・直管、２，６・・・ベローズ、３・・・エルボ
管、５・・・連通管、７・・・蒸気貯留管、９，１０・
・・保護筒、１１ａ、１１ｂ・・・タイロッドフランジ
、１２・・・タイロッド、１４・・・切欠き、１５ａ・
・・ビン、１７・・・リブ、１８・・・スリーブ、１９
・・・スペーサ、２０・・・支持７ランジ、Ｓ・・・蒸
気流、Ｆ・・・蒸気フロー部、Ｂ・・・蒸気バランス部
。
出願人代理人 猪 股 清第１図
■
聾
第２図
第７図
旦
第８図FIG. 1 is an enlarged view showing an embodiment of the present invention, FIG. 2 is a cross-sectional view taken along line I[-I in FIG. 1, FIG. 3 is a front view showing another -11 embodiment, and FIG. The figures are IV and -IV in Figure 3.
5 is a front view of the crossover tube showing the outer shape in the upper half and the cross section in the lower half, 6 is the right side view of 5, and 7 is the steam of the crossover tube. The enlarged view of the balance part, FIG. 8, is a sectional view taken along the line ■-■ in FIG. 7. DESCRIPTION OF SYMBOLS 1... Straight pipe, 2, 6... Bellows, 3... Elbow pipe, 5... Communication pipe, 7... Steam storage pipe, 9, 10.
...Protection tube, 11a, 11b...Tie rod flange, 12...Tie rod, 14...Notch, 15a...
...Bin, 17...Rib, 18...Sleeve, 19
...Spacer, 20...Support 7 langes, S...Steam flow, F...Steam flow section, B...Steam balance section. Applicant's agent Kiyoshi Inomata Figure 1 ■ Deaf Figure 2 Figure 7 Figure 8
Claims (1)
連設して蒸気フロー部を形成し、前記エルボ管の曲管部
に送られる蒸気流のバランスをとるための蒸気バランス
部を取付け、この蒸気バランス部は前記曲管部に固着さ
れた連通管と、この連通管にベローズを介して伸縮自在
に嵌め込まれる蒸気貯留管とからなる蒸気タービンのク
ロスオーバ管において、前記蒸気貯留管が連通管に対し
て相対的に捩れたり、自重によって下方に下がったりし
ないようにするための補強ガイド部材を前記ベローズが
蒸気バランス部内において露出するように設けたことを
特徴とするクロスオーバ管。 ２、前記補強ガイド部材は蒸気バランス部内部に設けら
れ、この補強ガイド部材は前記連通管に固着されベロー
ズの内側をベローズに沿う方向に延在する複数のリブと
、このリブの延在端部に固着されたスリーブとを有し、
このスリーブは前記蒸気貯留管に植設されたピンと係合
する切欠きとを有することを特徴とする特許請求の範囲
第１項に記載のクロスオーバ管。 ３、前記補強ガイド部材は蒸気バランス部外部に設けら
れ、この補強ガイド部材は前記蒸気貯留管の外周に設け
られたタイロッドフランジと、前記連通管外周に設けら
れた支持フランジと、前記タイロッドフランジと支持フ
ランジを通って延びるタイロッドとから成り、このタイ
ロッドは前記直管外周に設けられたタイロッドフランジ
を挿通し、タイロッドの蒸気貯留管端は蒸気貯留管が蒸
気フロー部側へ移動できるよう前記タイロッドフランジ
に係止されていることを特徴とする特許請求の範囲第１
項に記載のクロスオーバ管。[Claims] 1. An elbow pipe is connected to a straight pipe connected to a turbine casing to form a steam flow section, and steam for balancing the steam flow sent to the bent pipe section of the elbow pipe. In a crossover pipe for a steam turbine, a balance part is attached, and the steam balance part is composed of a communication pipe fixed to the bent pipe part and a steam storage pipe telescopically fitted into the communication pipe via a bellows. A cross characterized in that the bellows is provided with a reinforcing guide member to prevent the steam storage pipe from twisting relative to the communication pipe or from falling downward due to its own weight so that the bellows is exposed within the steam balance section. Over tube. 2. The reinforcing guide member is provided inside the steam balance section, and the reinforcing guide member includes a plurality of ribs that are fixed to the communication pipe and extend inside the bellows in a direction along the bellows, and an extending end portion of the ribs. a sleeve secured to the
2. The crossover pipe according to claim 1, wherein the sleeve has a notch that engages with a pin implanted in the steam storage pipe. 3. The reinforcing guide member is provided outside the steam balance section, and the reinforcing guide member includes a tie rod flange provided on the outer periphery of the steam storage pipe, a support flange provided on the outer periphery of the communication pipe, and the tie rod flange. and a tie rod extending through the support flange, the tie rod passing through the tie rod flange provided on the outer periphery of the straight pipe, and the steam storage pipe end of the tie rod being inserted into the tie rod flange so that the steam storage pipe can move toward the steam flow section. The first claim characterized in that
Crossover tube as described in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22835584A JPS61106904A (en) | 1984-10-30 | 1984-10-30 | Cross-over pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22835584A JPS61106904A (en) | 1984-10-30 | 1984-10-30 | Cross-over pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61106904A true JPS61106904A (en) | 1986-05-24 |
Family
ID=16875156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22835584A Pending JPS61106904A (en) | 1984-10-30 | 1984-10-30 | Cross-over pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61106904A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014527597A (en) * | 2011-08-30 | 2014-10-16 | シーメンス アクティエンゲゼルシャフト | Cooling for fluid machinery |
-
1984
- 1984-10-30 JP JP22835584A patent/JPS61106904A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014527597A (en) * | 2011-08-30 | 2014-10-16 | シーメンス アクティエンゲゼルシャフト | Cooling for fluid machinery |
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