JPS59194004A - Purging method of leaking gas from flange - Google Patents

Purging method of leaking gas from flange

Info

Publication number
JPS59194004A
JPS59194004A JP6975183A JP6975183A JPS59194004A JP S59194004 A JPS59194004 A JP S59194004A JP 6975183 A JP6975183 A JP 6975183A JP 6975183 A JP6975183 A JP 6975183A JP S59194004 A JPS59194004 A JP S59194004A
Authority
JP
Japan
Prior art keywords
flange
gas
machine
groove
purging
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
JP6975183A
Other languages
Japanese (ja)
Other versions
JPH0257201B2 (en
Inventor
Yasuo Kimura
木村　保男
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 JP6975183A priority Critical patent/JPS59194004A/en
Publication of JPS59194004A publication Critical patent/JPS59194004A/en
Publication of JPH0257201B2 publication Critical patent/JPH0257201B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/02—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type
    • F01D11/04—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type using sealing fluid, e.g. steam
    • F01D11/06—Control thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
    • F01D25/243—Flange connections; Bolting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

PURPOSE:To prevent leakage of gas inside a machine to the outside through the fittng faces of a flange by providing a groove for purging on the fitting face of the flange of a casing and introducing gas in the machine from said groove into a purge chamber or the like. CONSTITUTION:Grooves 5, 6 for purging are privided on respective fitting faces of horizontal flanges 3, 4 fixed in one body respectively with upper and lower casings 1, 2 of a turbo compressor or the like. Further, seal boxes 10, 11, shaped like rings divided in two, are fitted in the penetration part, for a shaft 30, of the casings 1, 2 linked to end parts of the horizontal flanges 3, 4, and a purging groove 12 communicating with the abovementioned grooves 5, 6 is provided on the fitting faces of the boxes 10, 11, and said groove 12 is further put in communication with a purging chamber 13. Furthermore, labyrinth packings 16-19 are provided between the seal boxes 10, 11 and the shaft 30. Thus, the gas leaked between the horizontal flanges 3, 4 is discharged in a safety zone outside the machine through the abovementioned grooves 5, 6, 12 and the purge chamber 13.

Description

【発明の詳細な説明】 本発明は、１幾内ガスがケーシングのフランジ部から機
外へ漏洩するのを防止し得るようにしたフランジの漏洩
ガスパージ方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a flange leakage gas purging method that can prevent gas from leaking out of the machine from a flange portion of a casing.

ターボ圧縮機、ブロワ、フ戸ン等において危険ガスを取
扱う場合には、機内ガスが機外へ漏洩しないようにする
ことが必要である。而して、上記機器のケーシング部の
構造を第１図により説明すると、上部ケーシング１の下
部及、び下部ケーシング２の上部には、夫々水平フラン
ジ３゜４が一体的に固着され、該上下水平フランジ３゜
４はポルＩ・及びナツトによってその当り面が強く締イ
］（）られ、ケーシング１，２内の機内ガスは機外へ漏
洩しないようになっている。しかし、何等かの原因で締
付力が緩／ｖだり、或いは上下フランジ３，４が変形し
たりすると、従来のものでは間中に機内ガスが１次外へ
漏洩することになり不都合である。When handling hazardous gases in turbo compressors, blowers, futons, etc., it is necessary to prevent gas inside the machine from leaking outside the machine. The structure of the casing part of the above-mentioned equipment will be explained with reference to FIG. The contact surfaces of the horizontal flanges 3.4 are strongly tightened with pins and nuts to prevent the internal gas in the casings 1 and 2 from leaking to the outside of the machine. However, if the tightening force becomes loose/v for some reason, or if the upper and lower flanges 3 and 4 are deformed, in the conventional type, gas inside the machine will leak out to the primary outside, which is inconvenient. .

本発明は上記観点に鑑み、機内ガスがケーシングのフラ
ンジ当り面から機外へ漏洩しないようにすることを目的
どしてなしたものである。The present invention has been made in view of the above-mentioned points of view, and is aimed at preventing the in-machine gas from leaking to the outside of the machine from the flange contact surface of the casing.

本発明によれば、ケーシングのフランジ当り面にパージ
用の猫を設け、機内ガスを該満からパージ苗やパージラ
インへ導くようにしている。According to the present invention, a purge cat is provided on the flange contact surface of the casing, and the in-machine gas is guided from the cat to the purge seedlings and the purge line.

従って、１幾内ガスがフランジ面から機外へ漏洩するこ
とを防止できる。Therefore, it is possible to prevent gas from leaking out of the machine from the flange surface.

以下、本発明の実施例を添付図面を参照しつつ説明づ−
る。Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
Ru.

上下に二分割された上部ケーシング１の下部と下部ケー
シング２の上部に、夫々水平フランジ３，４を一体的に
固着し、水平フランジ４上面の水平フランジ３下面に対
する当り面に、第２図の平面図に示すように水平フラン
ジ４幅方向の略中央部に位置するようパージ用の溝５を
設Ｅプ、水平フランジ４の当り面が機内側と機外側の二
面になるようにし、水平フランジ４の端部に当り面を切
欠いてパージ用の満６を設け、水平７ランジ３には、第
３図に示すようにボルト９を挿通けしめるポル１〜孔７
を設け、水平フランジ４の溝５の部分にはタップ８を設
け、水平フランジ３．４をボルト９により強固に締結し
１１するようにする。Horizontal flanges 3 and 4 are integrally fixed to the lower part of the upper casing 1 and the upper part of the lower casing 2, which are divided into two vertically, respectively, and the contact surface of the upper surface of the horizontal flange 4 with the lower surface of the horizontal flange 3 is attached as shown in FIG. As shown in the plan view, a purge groove 5 is installed so that it is located approximately in the center of the horizontal flange 4 in the width direction, and the contact surfaces of the horizontal flange 4 are on the inside and outside of the machine. A contact surface is cut out at the end of the flange 4 to provide a hole 6 for purging, and the horizontal 7 flange 3 has holes 1 to 7 into which bolts 9 are inserted and tightened, as shown in FIG.
A tap 8 is provided in the groove 5 of the horizontal flange 4, and the horizontal flange 3.4 is firmly fastened with bolts 9 (11).

水平フランジ３，４の端部に連なるケーシングの軸３０
＠通部に、リングを二つ割にした形状のシールボックス
１０．１１を嵌合ゼしめ、シールボックス１１のシール
ボックス１０に対する当り面に、第２図に示すように前
記溝５，６に連通ずるパージ用の溝１２を設け、形溝１
２をシールボックス１０゜１１で形成されるパージ室１
３に連通させ、？−ルボックス１０．１４に、パージ室
１３を間に挾んで機内側に位置する均圧室１４と（成性
側（こ位置する不活性ガス吹込室１５を夫々設ける。The shaft 30 of the casing connects to the ends of the horizontal flanges 3 and 4
A seal box 10.11 in the shape of a ring divided into two parts is fitted into the through part, and the grooves 5 and 6 are inserted into the contact surface of the seal box 11 against the seal box 10 as shown in FIG. A communicating purge groove 12 is provided, and the shaped groove 1
Purge chamber 1 formed by 2 and seal box 10°11
Connect to 3? - A pressure equalization chamber 14 located on the inside of the machine with a purge chamber 13 in between, and an inert gas blowing chamber 15 located on the production side are provided in the double box 10 and 14, respectively.

シールボックス１０．１１と軸３０との間にラビ１ノン
スパツ：１：ン１６，１７，１８．１９を夫々配設する
と共にシールボックス１０に第５図に示すよう【こラジ
アル方向にＣ１通した孔２０，２１．２２を穿設し、孔
２０をパージ室１３と、孔２１を均圧室１４と、孔２２
を不活性ガス吹込室１５と夫々連通せしめ、上部ケーシ
ング１に、孔２０と連通する孔２３、孔２１と連通する
孔２４、孔２２と連通する孔２５を夫々連通せしめ、左
右の孔２４．２４を均圧管２７で連結し、左右の孔２３
．２３にベント管２６を接続せしめ、又左右の孔２５に
、Ｎ２ガス等の不活性ガスを不活性〕Ｊス吹込室１５に
吹込むための管路２８を接続する。Between the seal box 10.11 and the shaft 30, Ravi 1 non-spats: 1:16, 17, 18.19 are respectively arranged, and as shown in FIG. Holes 20, 21, 22 are bored, hole 20 is used as purge chamber 13, hole 21 is used as pressure equalization chamber 14, hole 22
are in communication with the inert gas blowing chamber 15, and in the upper casing 1, a hole 23 communicating with the hole 20, a hole 24 communicating with the hole 21, a hole 25 communicating with the hole 22 are respectively communicated, and the left and right holes 24. 24 are connected with a pressure equalizing pipe 27, and the left and right holes 23
．． 23 is connected to a vent pipe 26, and a pipe line 28 for blowing an inert gas such as N2 gas into the inert J gas blowing chamber 15 is connected to the left and right holes 25.

管路２８には、機内ガスの圧力を検知して不活性ガス吹
込室１５内の圧力を多少憬内の圧力よりも高くなるにう
制御り−るための圧力制御弁２９を設ける。The pipe line 28 is provided with a pressure control valve 29 for detecting the pressure of the in-machine gas and controlling the pressure in the inert gas blowing chamber 15 to be slightly higher than the pressure in the tank.

機内ガスの圧力が上昇して漏洩を始める場合には、先ず
水平フランジ３，４間の機内側当り面よりガスが漏れ始
めるが、水平フランジ３，４間に漏出したガスは中央部
の溝５を通り、溝６を通ってシールボックス１１のｄ４
１２に入り、形溝１２からシールボックス１０．１１に
設（ブであるパージ室１３に入り、パージ室１３から孔
２０．２３を経てペンミル管２６から安全地帯に排出さ
れる。従ってガスは水平７ランジ３．４の機外側の当り
面より外部へ漏洩することはなく、極めて安全性が高い
。When the pressure of the gas inside the machine increases and it starts to leak, the gas first starts to leak from the contact surface between the horizontal flanges 3 and 4 on the inside of the machine, but the gas leaking between the horizontal flanges 3 and 4 flows into the groove 5 in the center. d4 of the seal box 11 through the groove 6.
12, and from the groove 12 it enters the purge chamber 13, which is located in the seal box 10.11, and from the purge chamber 13 it is discharged through the hole 20.23 from the pen mill tube 26 into the safety zone. There is no leakage to the outside from the contact surface on the outside of the 7 lunge 3.4, making it extremely safe.

又軸３０が上下部ケーシング１，２を１１通づる部分に
はシールボックス１ｏ、ｉｉが設けられ、シールボック
ス１０．１１と軸３０との間にはラビリンスパツキン１
６．１７，１８．１９が複数組数句（プられ、しかもシ
ールボックス１０．１１の外側端部に設りた不活性ガス
吹込至１５には、機内ガス圧力Ｊ：りも多少圧力の高い
不活性ガスが供給されるため、機内ガスや溝５，６．１
２を通ってパージ室１３に導かれたガスが不活性ガス吹
に室１５を経て１幾外へ漏洩することもない。Further, seal boxes 1o and ii are provided in the portion where the shaft 30 passes through the upper and lower casings 1 and 2, and a labyrinth packing 1 is provided between the seal box 10 and the shaft 30.
6.17, 18.19 are filled in multiple sets (in addition, the inert gas inlet 15 installed at the outer end of the seal box 10.11 has a somewhat high pressure). Since inert gas is supplied, in-flight gas and grooves 5 and 6.1
The gas introduced into the purge chamber 13 through the inert gas chamber 15 will not leak outside through the inert gas chamber 15.

なお、不発明の実施例においては、水、平フランジの１
幾内側当り面ｈｓ　ｒろ漏れたガスをパージ用の溝から
シールボックスのパージ室へ導き、パージ室からベント
管を経て安全地帯へ排出する場合につい−Ｃ説明したが
、水平フランジ所定位置にパージ用の溝と連通ずるパー
ジラインを接続し、該パージラインよりガスを外部の安
全地帯へ排出するようにもできること、パージ用の溝は
上部ケーシングの水平フランジ当り面或いは上下部ケー
シングの水平７ランジの当り面に夫々段りてｂ良いこと
、パージ用の溝は片側のフランジに複数本設（プでも良
いこと、その他、本発明の要旨を逸ＩＢ２　Ｌない範囲
内で種々変更を加えＩＩ７ること、等ば勿論である。In addition, in the non-inventive embodiment, one of the water and flat flanges
As explained in C-C, when leaking gas is guided from the purge groove to the purge chamber of the seal box and discharged from the purge chamber to the safety area via the vent pipe, the purge is carried out at the specified position on the horizontal flange. It is also possible to connect a purge line that communicates with the purge line to discharge gas from the purge line to an external safety zone. The purge grooves may be stepped on the abutment surface of each side, and multiple purge grooves may be provided on one flange (it may also be a purge groove).In addition, various changes may be made without departing from the gist of the present invention.II7 Of course, things like that.

ホざｔ明のフランジの漏洩刀スパージｈ法によれば、機
内ガスは水平７ランジの当り面から外部へ漏洩すること
なく、パージ用の溝を通して機外の安全地帯へ１〕１出
されるため、機内ガス−の水平７ランジ当り面からのは
外への漏洩を安全に防止することができ、従って安全性
が向上するという優れた効果を奏し１ｑる。According to Hozat Akira's flange leak sparge h method, the gas inside the machine is discharged to the safety zone outside the machine through the purge groove without leaking to the outside from the contact surface of the horizontal 7 lunges. It is possible to safely prevent in-flight gas from leaking to the outside from the horizontal 7-lunge contact surface, thus achieving an excellent effect of improving safety.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図（ｊ従来のケーシングの水平７ランジの部分の８
ｑ明図、第２図は本発明のフランジの漏洩ガスパージ方
法に使用する下部ケーシングに設（Ｊた水平フランジの
部分の説明用平面図、第３図（、ｉ第２図の■−■方向
矢視図、第４図は第２図のＪＶ−ＩＶ方向矢視図、第５
図は本発明のフランジの漏洩］ｊスパージ方法に使用す
るシールボックスの部分の説明用縦断面図である。 図中１４．１−Ｌ部ケーシング、２は下部ケーシング、
３．４は水平フランジ、５，６．１２はシール用の溝、
１３はパージ室、２６はペン１〜管を示す。Figure 1 (j 8 of the horizontal 7 lunge part of the conventional casing
Figures q and 2 are an explanatory plan view of the horizontal flange part installed in the lower casing used in the flange leakage gas purging method of the present invention, and The arrow view, Figure 4 is the JV-IV direction arrow view in Figure 2, Figure 5
The figure is an explanatory longitudinal sectional view of a portion of a seal box used in the flange leakage sparging method of the present invention. In the figure, 14.1-L part casing, 2 is the lower casing,
3.4 is a horizontal flange, 5, 6.12 is a groove for sealing,
13 is a purge chamber, and 26 is a pen 1 to a tube.

Claims (1)

【特許請求の範囲】[Claims] １）　ケーシングのフランジ当り面に、該当り面を機内
側と機外側に分けるようパージ用の溝を設け、ゲージン
グフランジの機内側当り面から前記パージ用の溝に漏出
したガスを、ケーシング７ラン゛ジの機外側当り面から
外部へ漏洩することなく、所要の手段により安全地帯へ
排出Ｖしめることを特徴とするフランジの漏洩ガスパー
ジ方法。1) A purge groove is provided on the flange abutting surface of the casing to separate the corresponding surface into the inside and outside of the machine, and the gas leaking from the abutment surface of the gauging flange on the inside of the machine into the purge groove is drained into the seven runs of the casing. A method for purging leakage gas from a flange, characterized in that the gas is discharged to a safe zone by a necessary means without leaking to the outside from the outside contact surface of the flange.
JP6975183A 1983-04-20 1983-04-20 Purging method of leaking gas from flange Granted JPS59194004A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6975183A JPS59194004A (en) 1983-04-20 1983-04-20 Purging method of leaking gas from flange

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6975183A JPS59194004A (en) 1983-04-20 1983-04-20 Purging method of leaking gas from flange

Publications (2)

Publication Number Publication Date
JPS59194004A true JPS59194004A (en) 1984-11-02
JPH0257201B2 JPH0257201B2 (en) 1990-12-04

Family

ID=13411807

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6975183A Granted JPS59194004A (en) 1983-04-20 1983-04-20 Purging method of leaking gas from flange

Country Status (1)

Country Link
JP (1) JPS59194004A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1712816A1 (en) * 2005-04-14 2006-10-18 Siemens Aktiengesellschaft Sealing system for sealing a process gas chamber from a chamber to be sealed
JP2006316630A (en) * 2005-05-10 2006-11-24 Osaka Gas Co Ltd Turbine device
WO2012117016A1 (en) * 2011-03-03 2012-09-07 Siemens Aktiengesellschaft Turbomachine housing having a joint (or flange connection) sealed off with seal gas
CN110227674A (en) * 2018-03-06 2019-09-13 兰州兰石重型装备股份有限公司 Flange sealing surface leaks blow device and its application method
JP2019215004A (en) * 2013-10-08 2019-12-19 ヌオーヴォ ピニォーネ ソチエタ レスポンサビリタ リミタータＮｕｏｖｏ Ｐｉｇｎｏｎｅ Ｓ．Ｒ．Ｌ． Casing for rotating machine and rotating machine including such casing

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5359105A (en) * 1976-11-08 1978-05-27 Fuji Electric Co Ltd Axis sealing device for turbo machine
JPS5479312A (en) * 1977-12-05 1979-06-25 Hitachi Ltd Casing for turbine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5359105A (en) * 1976-11-08 1978-05-27 Fuji Electric Co Ltd Axis sealing device for turbo machine
JPS5479312A (en) * 1977-12-05 1979-06-25 Hitachi Ltd Casing for turbine

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1712816A1 (en) * 2005-04-14 2006-10-18 Siemens Aktiengesellschaft Sealing system for sealing a process gas chamber from a chamber to be sealed
WO2006108819A1 (en) * 2005-04-14 2006-10-19 Siemens Aktiengesellschaft Sealing system for sealing a gas processing chamber with respect to a sealed chamber
JP2006316630A (en) * 2005-05-10 2006-11-24 Osaka Gas Co Ltd Turbine device
JP4697730B2 (en) * 2005-05-10 2011-06-08 大阪瓦斯株式会社 Turbine equipment
WO2012117016A1 (en) * 2011-03-03 2012-09-07 Siemens Aktiengesellschaft Turbomachine housing having a joint (or flange connection) sealed off with seal gas
CN103403356A (en) * 2011-03-03 2013-11-20 西门子公司 Turbomachine housing having a joint (or flange connection) sealed off with seal gas
CN103403356B (en) * 2011-03-03 2016-07-06 西门子公司 For the housing that the energy of fluid machinery separates
JP2019215004A (en) * 2013-10-08 2019-12-19 ヌオーヴォ ピニォーネ ソチエタ レスポンサビリタ リミタータＮｕｏｖｏ Ｐｉｇｎｏｎｅ Ｓ．Ｒ．Ｌ． Casing for rotating machine and rotating machine including such casing
CN110227674A (en) * 2018-03-06 2019-09-13 兰州兰石重型装备股份有限公司 Flange sealing surface leaks blow device and its application method

Also Published As

Publication number Publication date
JPH0257201B2 (en) 1990-12-04

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