JPS60252883A - Construction of valve for high temperature and high pressure fluid - Google Patents
Construction of valve for high temperature and high pressure fluidInfo
- Publication number
- JPS60252883A JPS60252883A JP10764884A JP10764884A JPS60252883A JP S60252883 A JPS60252883 A JP S60252883A JP 10764884 A JP10764884 A JP 10764884A JP 10764884 A JP10764884 A JP 10764884A JP S60252883 A JPS60252883 A JP S60252883A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- cooling water
- flange
- valve body
- temperature
- 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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K49/00—Means in or on valves for heating or cooling
- F16K49/005—Circulation means for a separate heat transfer fluid
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、蒸気の圧力や温度の急変化、または弁の開弁
、閉弁等による弁本体とボン札ットの温度差が出来て、
同弁本体とボンネットの隙間が変ることによる気密性の
変化によって発生する蒸気の洩れをなくす技術分野で利
用される。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is applicable to a temperature difference between the valve body and the valve due to a sudden change in steam pressure or temperature, opening or closing of a valve, etc.
It is used in the technical field to eliminate steam leakage caused by changes in airtightness due to changes in the gap between the valve body and the bonnet.
従来の技術
第３図に従来の高温・高圧流体の弁構造を示し、その概
要について説明する。BACKGROUND OF THE INVENTION FIG. 3 shows a conventional valve structure for high temperature and high pressure fluid, and its outline will be explained.
図において、符番０１は弁本体、０２は弁棒、０３はガ
イド、０４は弁座、０５はボンネット、０６はプレッシ
ャーシールリング、０７はリテーナ、０８はフランジ、
０９はボルトで、弁はこれらの部分から成っている。In the figure, number 01 is the valve body, 02 is the valve stem, 03 is the guide, 04 is the valve seat, 05 is the bonnet, 06 is the pressure seal ring, 07 is the retainer, 08 is the flange,
09 is a bolt, and the valve consists of these parts.
蒸気０１０はボンネット０５と弁本体ｏ１の隙間に流れ
込むが、蒸気０１０の圧力でボンネン）０５が上に押し
付けられ、くさび形のプレッシャーシールリング０６が
ボンネットｏ５と弁本体ｏ１の間に食い込んで蒸気０１
０の漏れを防止する構成となっている。Steam 010 flows into the gap between the bonnet 05 and the valve body o1, but the pressure of the steam 010 pushes the bonnet 05 upward, and the wedge-shaped pressure seal ring 06 bites between the bonnet o5 and the valve body o1, causing the steam 01 to flow into the gap between the bonnet 05 and the valve body o1.
The structure is designed to prevent zero leakage.
上記構成の従来の弁構造は次のような欠点がある。The conventional valve structure having the above configuration has the following drawbacks.
（ａｌ 蒸気の圧力や温度の急変化、又は弁の開弁、閉
弁によシ弁本体０１とボンネットｏ５の温度に差が出来
て、弁本体０１とボンネットｏ５の相対的な長さや、直
径が変るため、弁本体ｏ１とボンネット０５の隙間が変
り、シールリング０６の気密性が変シ、蒸気０１０が洩
れることが多い。(al) If there is a sudden change in steam pressure or temperature, or a difference in temperature between the valve body 01 and the bonnet o5 due to the opening or closing of the valve, the relative length or diameter of the valve body 01 and the bonnet o5 may change. As a result, the gap between the valve body o1 and the bonnet 05 changes, the airtightness of the seal ring 06 changes, and steam 010 often leaks.
（ｂｌ シールリング０６のくさび形状の当り面とボン
ネン）０５．弁本体０１０当シ面の密着が難かしく、高
度な加工精度が要求され、また一旦傷が付くと洩れ防止
は困難である。(bl: Wedge-shaped contact surface of seal ring 06 and bonnet) 05. It is difficult to make close contact with the surface of the valve body 010, requiring a high degree of processing accuracy, and once scratched, it is difficult to prevent leakage.
本発明が解決しようとする問題点
本発明は以上述べたような弁本体０１とフランジ０８よ
シなる高温・高圧流体用の弁構造において、蒸気の温度
、圧力、弁の開閉によって弁本体０１およびボンネット
０５の温度が変っても温度差は発生せず、ボルトのゆる
みもなく、そのため蒸気が洩れることのないような弁の
気密性を向上させることにある。Problems to be Solved by the Present Invention The present invention provides a valve structure for high-temperature and high-pressure fluids consisting of the valve body 01 and the flange 08 as described above. The purpose is to improve the airtightness of the valve so that even if the temperature of the bonnet 05 changes, no temperature difference occurs, bolts do not loosen, and therefore steam does not leak.
問題点を解決するための手段
本発明は、上述の問題を解決するために、次のような手
段を採っている。Means for Solving the Problems The present invention takes the following measures in order to solve the above-mentioned problems.
すなわち、弁棒案内を弁本体に締めっけるフラ゛） 〜
ジよりなる高温・高圧流体用の弁構造において、弁本体
及びフランジに円周状に配置したフランジ締付用ボルト
のそれぞれのピッチ間隔の中間に２本を１組とし、その
２本が互いに連通してＶ字形をなす冷却水孔を放射状に
設け、該冷却水孔を弁本体及びフランジの外周に設けた
円周溝同士で連結する。In other words, the flap that fastens the valve stem guide to the valve body) ~
In a valve structure for high-temperature and high-pressure fluids consisting of a valve body and a flange, a set of two flange tightening bolts arranged in a circumferential manner on the valve body and the flange are arranged in the middle of the respective pitch intervals, and the two bolts communicate with each other. V-shaped cooling water holes are provided radially, and the cooling water holes are connected to each other by circumferential grooves provided on the outer periphery of the valve body and the flange.
作用
以上述べた手段によれば、したがって、上記弁本体、フ
ランジ、ボルトが冷却水で冷却されているため、高温の
蒸気が常に低く維持されており、さらに弁本体フランジ
、ボルトの温度差も小さい。According to the means described above, the valve body, flange, and bolt are cooled with cooling water, so the high temperature steam is always kept low, and furthermore, the temperature difference between the valve body flange and bolt is small. .
従って、蒸気の温度、圧力、弁の開閉によって弁本体、
フランジ、ボンネットの温度が変っても、これらの温度
差がほとんど発生せず、ボルト、パツキンのゆるみもな
く、蒸気の洩れを発生しないことに々る。Therefore, depending on the steam temperature, pressure, and opening/closing of the valve, the valve body,
Even if the temperature of the flange and bonnet changes, there is almost no difference in temperature between them, bolts and gaskets do not loosen, and steam leaks do not occur.
実施例
次に、第１図、第２図を参照して本発明の実施例につい
て詳述する。Embodiment Next, an embodiment of the present invention will be described in detail with reference to FIGS. 1 and 2.
第１．２図において、符号１は弁本体、２は弁棒、３は
弁座、４はボンネット、５は２ランジ、６はフランジ締
付用ボルト、７はパツキンである。In Fig. 1.2, numeral 1 is the valve body, 2 is the valve stem, 3 is the valve seat, 4 is the bonnet, 5 is the 2 flange, 6 is the flange tightening bolt, and 7 is the packing.
弁本体１とフランジ５はフランジ締付用ボルト６で締め
つけられる。弁本体１及びフランジ５はそれぞれ冷却水
孔８．９及び１０，１１を放射状にあける。The valve body 1 and the flange 5 are tightened with flange tightening bolts 6. The valve body 1 and the flange 5 are provided with cooling water holes 8.9 and 10, 11 radially, respectively.
冷却水孔８と９及び１０と１１は互いに２本が１組とな
う、その２本が先端で連結されてＶ字形をなしている。The cooling water holes 8 and 9 and 10 and 11 are made into a set of two, and the two are connected at their tips to form a V-shape.
また、冷却水孔８．９及び１０．１１はボルト６のピッ
チ間隔の中間に孔明けしている。Further, the cooling water holes 8.9 and 10.11 are bored in the middle of the pitch interval of the bolts 6.
弁本体１と２ランジ５の外周には円周溝１２．１及び１
４．１５が設けられ、上記冷却水孔８と円周溝１２、冷
却水孔９と円周溝１３、冷却水孔ｌＯと円周溝１４、冷
却水孔工１と円周溝１５がそれぞれ連結されている。Circumferential grooves 12.1 and 1 are provided on the outer periphery of the valve body 1 and 2 and the flange 5.
4.15 are provided, and the cooling water hole 8 and the circumferential groove 12, the cooling water hole 9 and the circumferential groove 13, the cooling water hole IO and the circumferential groove 14, and the cooling water hole hole 1 and the circumferential groove 15 are provided, respectively. connected.
冷却水入口管１６からの冷却水は円周溝１２に入シ、ボ
ルト６の各々の間に設けた冷却水孔８．９を通シ、弁本
体１を冷却し、円周溝１３に入シ、連絡管１７を通ｐ１
円周溝１４へ流入し、冷却水孔１０．１１、円周１５と
流れ、排出管１８から流出する。The cooling water from the cooling water inlet pipe 16 enters the circumferential groove 12, passes through the cooling water holes 8.9 provided between each of the bolts 6, cools the valve body 1, and enters the circumferential groove 13. , connect the connecting pipe 17 to p1
It flows into the circumferential groove 14, flows through the cooling water hole 10.11, the circumference 15, and flows out from the discharge pipe 18.
本発明の効果
以上述べたような構成：作用によれば、次のような利点
及び効果を有する。Effects of the present invention According to the structure and operation described above, the present invention has the following advantages and effects.
ｆａｌ 弁本体１．フランジ５、ボルト６が水で冷却さ
れているため、蒸気が６００℃位でも常に１０００〜１
５０℃の低温に維持されており、さらに、弁本体１、フ
ランジ５、ボルト６の温度差も小さも・。従って、蒸気
の温度、圧力、弁の開閉によって弁本体１．フランジ５
、ボンネット４の温度が変っても弁本体１、フランジ５
及びボルト６の温度差がほとんど発生せず、ボルト６及
びパツキン７のゆるみもなく、蒸気の洩れも発生しない
。fal Valve body 1. Because the flange 5 and bolt 6 are cooled with water, the temperature is always 1000~1 even when the steam is around 600℃.
It is maintained at a low temperature of 50℃, and the temperature difference between the valve body 1, flange 5, and bolt 6 is also small. Therefore, the valve body 1. Flange 5
, even if the temperature of the bonnet 4 changes, the valve body 1 and flange 5
There is almost no temperature difference between the bolts 6 and the bolts 6, there is no loosening of the bolts 6 and the packing 7, and no steam leakage occurs.
（ｂｌ フランジ５とボンネット４を一体とすれば、熱
の流れからいってフランジ５の冷却により。(bl If the flange 5 and the bonnet 4 are integrated, the flange 5 will be cooled in terms of heat flow.
ボンネット４の上部は常に低温であるため、グランドパ
ツキン１９の温度も低くできるので、空冷にするグラン
ドパツキンの温度降下を狙った従来例（第３図）のよう
に首長にする必要はなくなｐ経済的であり、耐震性も優
れた背の低い弁構造にすることが出来る。Since the upper part of the bonnet 4 is always at a low temperature, the temperature of the gland packing 19 can also be lowered, so there is no need to make it long like in the conventional example (Fig. 3), which aims to lower the temperature of the gland packing which is air-cooled. It is possible to create a short valve structure that is economical and has excellent earthquake resistance.
第１図は本発明の弁構造を示す縦断面図、第２図は第１
図における１−１線矢視断面図、第３図は従来の弁構造
を示す縦断面図である。
１・・弁本体、２・・弁棒、３・・弁座、４・・ボンネ
ット、５・・フランジ、６・・ボルト、７・・パツキン
、８．９，１０．１１・・冷却水孔、１２．１３，１４
．１５・・円周溝、１６・・冷却水入口管、１７・・連
絡管、１８・・排出管、１９・・グランドパツキン。
（ほか２名）
ＩＩ １ 図FIG. 1 is a vertical sectional view showing the valve structure of the present invention, and FIG.
A sectional view taken along the line 1-1 in the figure, and FIG. 3 is a longitudinal sectional view showing a conventional valve structure. 1. Valve body, 2. Valve stem, 3. Valve seat, 4. Bonnet, 5. Flange, 6. Bolt, 7. Packing, 8.9, 10.11. Cooling water hole. , 12.13,14
．． 15...Circumferential groove, 16...Cooling water inlet pipe, 17...Connection pipe, 18...Discharge pipe, 19...Gland packing. (2 others) II 1 Figure
Claims (1)
高圧流体用の弁構造において、弁本体及びフランジに円
周状に配置したフランジ締付用ボルトのそれぞれのピッ
チ間隔の中間に２本を１組としその２本が互いに連通し
てＶ字形をなす冷却水孔を放射状に設け、該冷却水孔を
弁本体及びフランジの外周に設けた円周溝同士で連結し
た高温高圧流体用の弁構造。The flange that tightens the valve stem guide to the valve body
In a valve structure for high-pressure fluid, a set of two flange tightening bolts arranged in a circumferential manner on the valve body and flange are placed in the middle of the respective pitch intervals, and the two bolts communicate with each other to form a V-shape. A valve structure for high-temperature, high-pressure fluid in which cooling water holes are provided radially, and the cooling water holes are connected to each other by circumferential grooves provided on the outer periphery of the valve body and flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10764884A JPS60252883A (en) | 1984-05-29 | 1984-05-29 | Construction of valve for high temperature and high pressure fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10764884A JPS60252883A (en) | 1984-05-29 | 1984-05-29 | Construction of valve for high temperature and high pressure fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60252883A true JPS60252883A (en) | 1985-12-13 |
Family
ID=14464511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10764884A Pending JPS60252883A (en) | 1984-05-29 | 1984-05-29 | Construction of valve for high temperature and high pressure fluid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60252883A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1635097A1 (en) * | 2004-09-08 | 2006-03-15 | Kabushiki Kaisha Toshiba | High temperature steam valve and steam turbine plant |
-
1984
- 1984-05-29 JP JP10764884A patent/JPS60252883A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1635097A1 (en) * | 2004-09-08 | 2006-03-15 | Kabushiki Kaisha Toshiba | High temperature steam valve and steam turbine plant |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0458980B1 (en) | Ball valve | |
| US4815184A (en) | Method of fabricating a turbocharger water-cooled bearing housing | |
| US4353388A (en) | Butterfly valve | |
| US4171142A (en) | Leak repair clamp | |
| US3448986A (en) | Gasket and joint for cylinder heads | |
| US6065736A (en) | Ball valve having a non-integral upstream seat and at least one integral downstream seat | |
| JPH10238301A (en) | Cooling passage of gas turbine blade | |
| US4223868A (en) | Resilient seated gate valve | |
| US3436085A (en) | Sealing structure embodying deformable ring | |
| KR0127715Y1 (en) | Butterfly valve | |
| US4542878A (en) | Ball valve | |
| JPS60252883A (en) | Construction of valve for high temperature and high pressure fluid | |
| US3589675A (en) | Rotary valve assembly with insertable valve unit | |
| US2367134A (en) | Steam chest construction | |
| US3720223A (en) | Seal construction for steam traps | |
| JPS61139737A (en) | Apparatus for preventing leakage of flange joint | |
| US4971098A (en) | Valve and improved seat seal therefor | |
| US3373968A (en) | Between-flange ball valve with slidable seats | |
| US3666237A (en) | Welded fabricated ball valve | |
| US2330130A (en) | Pressure sealed joint | |
| US1715665A (en) | Valve for steam or other fluids and liquids | |
| US3285565A (en) | Removable valve seat | |
| JPS62243944A (en) | Cylinder liner and cylinder cover structure | |
| US3462118A (en) | Ball valve for use between flanges | |
| US5556074A (en) | High temperature valve |