JP2004316738A - Wafer type orifice trap - Google Patents

Wafer type orifice trap Download PDF

Info

Publication number
JP2004316738A
JP2004316738A JP2003109867A JP2003109867A JP2004316738A JP 2004316738 A JP2004316738 A JP 2004316738A JP 2003109867 A JP2003109867 A JP 2003109867A JP 2003109867 A JP2003109867 A JP 2003109867A JP 2004316738 A JP2004316738 A JP 2004316738A
Authority
JP
Japan
Prior art keywords
orifice
flanges
pair
communication hole
partitioning member
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
Application number
JP2003109867A
Other languages
Japanese (ja)
Inventor
Tadashi Koike
正 小池
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.)
TLV Co Ltd
Original Assignee
TLV Co Ltd
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 TLV Co Ltd filed Critical TLV Co Ltd
Priority to JP2003109867A priority Critical patent/JP2004316738A/en
Publication of JP2004316738A publication Critical patent/JP2004316738A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Gasket Seals (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wafer type orifice trap capable of sealing between a pair of flanges of pipes by a single gasket. <P>SOLUTION: This wafer type orifice trap comprises: a gasket main body 10 sandwiched and fixed between a pair of the flanges 6, 7 of the pipes 4, 5 by a bolt 8 and a nut 9 as outer connection members; a partitioning member 13 having a communication hole 15, and being air-tightly disposed in inner periphery of the gasket main body 10; and an orifice plate 2 including a plurality of orifices 12a, 12b, 12c, 12d, 12e, 12f with different opening areas, and being attached to the partitioning member 13 by opposing a desired orifice 12a to the communication hole 15 of the partitioning member 13. The partitioning member having the communication hole are air-tightly disposed on the inner periphery of the gasket body for sealing a section between the pair of flanges of the pipes. The orifice plate having the plurality of orifices with different opening areas is mounted on the partitioning member so as to make the desired orifice face the communication hole of the partitioning member, thus sealing the section between the pair of flanges of the pipes with a single gasket body. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は、蒸気輸送管や蒸気使用機器等の蒸気配管系に発生する復水を常時開口しているオリフィスから自動的に排出するオリフィストラップに関し、特に、配管の一対のフランジ間に挟んで固定される構造のウエハー型オリフィストラップに関する。
【0002】
【従来の技術】
【特許文献1】
実公昭61−14717号公報
従来のウエハー型オリフィストラップは、実公昭61−14717号公報に示されている。当該公報から理解されるように、オリフィスを有するオリフィス板を外部の連結部材によって配管の一対のフランジ間に、一対のガスケットを介して固定するものである。
【0003】
【発明が解決しようとする課題】
上記従来のものでは、配管の一対のフランジ間をシールするための一対のガスケットを必要とする問題があった。従って、本発明の技術的課題は、配管の一対のフランジ間を単一のガスケットでシールできるウエハー型オリフィストラップを提供することである。
【0004】
【課題を解決するための手段】
上記の技術的課題を解決するために講じた本発明の技術的手段は、外部の連結部材によって配管の一対のフランジ間に挟んで固定される環状のガスケット本体と、連通孔を有しガスケット本体の内周に気密に配置された仕切部材と、開口面積の異なる複数のオリフィスを有し所望のオリフィスを仕切部材の連通孔に対面させて仕切部材に取り付けられるオリフィス板と、を具備することを特徴とするウエハー型オリフィストラップにある。
【0005】
【発明の実施の形態】
本発明のウエハー型オリフィストラップは、配管の一対のフランジ間をシールするガスケット本体の内周に、連通孔を有する仕切部材を気密に配置し、開口面積の異なる複数のオリフィスを有するオリフィス板を、所望のオリフィスを仕切部材の連通孔に対面させて仕切部材に取り付けるものであるので、配管の一対のフランジ間を単一のガスケット本体でシールすることができる。
【0006】
【実施例】
上記の技術的手段の具体例を示す実施例を説明する(図1乃至図4参照)。本発明のウエハー型オリフィストラップ1のオリフィス板2は、うず巻形ガスケット3内に形成される。うず巻形ガスケット3は、配管4,5のフランジ6,7の間に配置され、ボルト8とナット9からなる連結手段によって挟持される。
【0007】
うず巻形ガスケット3は、フープ材とフィラー材とを重ね合わせてうず巻き状に巻回して構成したガスケット本体10と、ガスケット本体10の外周に気密に配置した外輪11と、ガスケット本体10の内周に気密に配置した仕切部材13とよりなる。ガスケット本体10のフープ材には主としてステンレスが用いられ、フィラー材にはアスベスト、黒鉛、PTFE、無機紙などが用いられ、外輪11と仕切部材13には一般に炭素鋼、ステンレスが用いられる。
【0008】
仕切部材13は、連通孔15を有する。仕切部材13の右側面に円板形状のオリフィス板2を止めネジ14で取り付ける。オリフィス板2は、円周上に開口面積の異なる6個のオリフィス12a,12b,12c,12d,12e,12fを有する。6個のオリフィスの開口面積は、12a,12b,12c,12d,12e,12fの順に大きく形成する。仕切部材13の連通孔15の開口面積は、最大開口面積のオリフィス12fの開口面積よりも少し大きく形成する。図1は、仕切部材13がオリフィス12b,12c,12d,12e,12fを閉口し、連通孔15を介してオリフィス12aを開口した状態を示している。図示の状態からオリフィス板2を時計回り方向に60度づつ回転させて仕切部材13に取り付けることにより、オリフィス12b,12d,12f,12e,12cの順に開口させることができる。上流側である配管4側から流入してきた復水は、オリフィス12aから下流側である配管5側へ流下する。
【0009】
【発明の効果】
本発明は下記の特有の効果を生じる。
上記のように本発明によれば、配管の一対のフランジ間をシールするガスケット本体の内周に、連通孔を有する仕切部材を気密に配置し、開口面積の異なる複数のオリフィスを有するオリフィス板を、所望のオリフィスを仕切部材の連通孔に対面させて仕切部材に取り付けることにより、配管の一対のフランジ間を単一のガスケット本体でシールすることができるという優れた効果を生じる。
【図面の簡単な説明】
【図1】配管の一対のフランジ間に挟んで固定された本発明のウエハー型オリフィストラップを示す図
【図2】図1のウエハー型オリフィストラップを拡大した図
【図3】図2の仕切部材の左側面図
【図4】図2のオリフィス板の右側面図
【符号の説明】
1 ウエハー型オリフィストラップ
2 オリフィス板
3 うず巻形ガスケット
4,5 配管
6,7 フランジ
8 ボルト
9 ナット
10 ガスケット本体
11 外輪
12a,12b,12c,12d,12e,12f オリフィス
13 仕切部材
14 止めネジ
15 連通孔
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an orifice strap that automatically discharges condensate generated in a steam piping system such as a steam transport pipe or a steam-using device from an orifice that is always open, and is particularly fixed between a pair of flanges of the pipe. The present invention relates to a wafer-type orifice strap having a structure to be used.
[0002]
[Prior art]
[Patent Document 1]
A conventional wafer-type orifice strap is disclosed in Japanese Utility Model Publication No. 61-14717. As understood from the publication, an orifice plate having an orifice is fixed between a pair of flanges of a pipe by an external connecting member via a pair of gaskets.
[0003]
[Problems to be solved by the invention]
In the above-mentioned conventional one, there is a problem that a pair of gaskets for sealing between a pair of flanges of the pipe is required. Therefore, a technical problem of the present invention is to provide a wafer-type orifice strap that can seal between a pair of flanges of piping with a single gasket.
[0004]
[Means for Solving the Problems]
The technical means of the present invention taken in order to solve the above technical problem includes an annular gasket body fixed between a pair of flanges of a pipe by an external connecting member, and a gasket body having a communication hole. A partition member airtightly arranged on the inner periphery of the partition member, and an orifice plate having a plurality of orifices having different opening areas and having the desired orifice facing the communication hole of the partition member and attached to the partition member. The characteristic feature is the wafer type orifice strap.
[0005]
BEST MODE FOR CARRYING OUT THE INVENTION
The wafer-type orifice strap of the present invention has an orifice plate having a plurality of orifices having different opening areas, in which a partition member having a communication hole is hermetically arranged on an inner periphery of a gasket body for sealing between a pair of flanges of a pipe. Since the desired orifice faces the communication hole of the partition member and is attached to the partition member, a single gasket main body can seal between a pair of flanges of the pipe.
[0006]
【Example】
An embodiment showing a specific example of the above technical means will be described (see FIGS. 1 to 4). The orifice plate 2 of the wafer-type orifice strap 1 of the present invention is formed in a spiral-wound gasket 3. The spiral gasket 3 is disposed between the flanges 6, 7 of the pipes 4, 5, and is sandwiched by connecting means including a bolt 8 and a nut 9.
[0007]
The spiral-wound gasket 3 includes a gasket main body 10 formed by superposing a hoop material and a filler material and winding them in a spiral shape; an outer ring 11 air-tightly arranged on the outer periphery of the gasket main body 10; And a partition member 13 which is arranged in an airtight manner. Stainless steel is mainly used for the hoop material of the gasket main body 10, asbestos, graphite, PTFE, inorganic paper and the like are used for the filler material, and carbon steel and stainless steel are generally used for the outer ring 11 and the partition member 13.
[0008]
The partition member 13 has a communication hole 15. The disk-shaped orifice plate 2 is attached to the right side surface of the partition member 13 with the set screw 14. The orifice plate 2 has six orifices 12a, 12b, 12c, 12d, 12e, and 12f having different opening areas on the circumference. The opening areas of the six orifices are formed larger in the order of 12a, 12b, 12c, 12d, 12e, and 12f. The opening area of the communication hole 15 of the partition member 13 is formed to be slightly larger than the opening area of the orifice 12f having the maximum opening area. FIG. 1 shows a state in which the partition member 13 closes the orifices 12b, 12c, 12d, 12e, and 12f and opens the orifice 12a through the communication hole 15. By rotating the orifice plate 2 in the clockwise direction by 60 degrees from the state shown in the drawing and attaching it to the partition member 13, the orifices 12b, 12d, 12f, 12e, and 12c can be opened in this order. Condensate flowing in from the upstream pipe 4 flows down from the orifice 12a to the downstream pipe 5 side.
[0009]
【The invention's effect】
The present invention has the following specific effects.
According to the present invention as described above, an orifice plate having a plurality of orifices having different opening areas is provided by hermetically disposing a partition member having a communication hole on the inner periphery of a gasket body that seals between a pair of flanges of a pipe. By attaching a desired orifice to the partition member so as to face the communication hole of the partition member, an excellent effect that a single gasket main body can seal between a pair of flanges of the pipe is produced.
[Brief description of the drawings]
FIG. 1 is a view showing a wafer-type orifice strap of the present invention fixed between a pair of flanges of piping. FIG. 2 is an enlarged view of the wafer-type orifice strap of FIG. 1. FIG. 3 is a partition member of FIG. 4 is a right side view of the orifice plate in FIG. 2 [Description of reference numerals]
DESCRIPTION OF SYMBOLS 1 Wafer type orifice strap 2 Orifice plate 3 Spiral wound gasket 4, 5 Piping 6, 7 Flange 8 Bolt 9 Nut 10 Gasket main body 11 Outer rings 12a, 12b, 12c, 12d, 12e, 12f Orifice 13 Partition member 14 Set screw 15 Communication Hole

Claims (1)

外部の連結部材によって配管の一対のフランジ間に挟んで固定される環状のガスケット本体と、連通孔を有しガスケット本体の内周に気密に配置された仕切部材と、開口面積の異なる複数のオリフィスを有し所望のオリフィスを仕切部材の連通孔に対面させて仕切部材に取り付けられるオリフィス板と、を具備することを特徴とするウエハー型オリフィストラップ。An annular gasket main body fixed between a pair of flanges of a pipe by an external connecting member, a partition member having a communication hole and hermetically disposed on an inner periphery of the gasket main body, and a plurality of orifices having different opening areas And an orifice plate attached to the partition member with a desired orifice facing the communication hole of the partition member.
JP2003109867A 2003-04-15 2003-04-15 Wafer type orifice trap Pending JP2004316738A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003109867A JP2004316738A (en) 2003-04-15 2003-04-15 Wafer type orifice trap

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003109867A JP2004316738A (en) 2003-04-15 2003-04-15 Wafer type orifice trap

Publications (1)

Publication Number Publication Date
JP2004316738A true JP2004316738A (en) 2004-11-11

Family

ID=33470871

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003109867A Pending JP2004316738A (en) 2003-04-15 2003-04-15 Wafer type orifice trap

Country Status (1)

Country Link
JP (1) JP2004316738A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4808735B2 (en) * 2005-02-16 2011-11-02 フィッシャー コントロールズ インターナショナル リミテッド ライアビリティー カンパニー Pneumatic device with selectively changeable orifice

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4808735B2 (en) * 2005-02-16 2011-11-02 フィッシャー コントロールズ インターナショナル リミテッド ライアビリティー カンパニー Pneumatic device with selectively changeable orifice

Similar Documents

Publication Publication Date Title
JP2941180B2 (en) Valve with seal ring having peripheral welded laminate
US6682081B2 (en) Reduced area gaskets
AU641229B2 (en) A diaphragm valve
NO20011175L (en) Device by pipe sealing
JPH0260367B2 (en)
JP2004316737A (en) Wafer type orifice trap
JP3919197B2 (en) Flame arrestor
JP2004316738A (en) Wafer type orifice trap
JP2004278614A (en) Wafer type orifice trap
JP2004340250A (en) Wafer type orifice trap
JPH07103342A (en) Seal-ring device in fluid flowing pipe and mounting method of seal-ring into valve
JP2004340251A (en) Wafer type orifice trap
US2729237A (en) Valve assembly
JP2004278613A (en) Wafer type orifice trap
JP2004278616A (en) Wafer-type check valve
JP2004278615A (en) Wafer-type check valve
JP2004340253A (en) Temporary strainer
JP2004278612A (en) Wafer type steam trap
JPH10176823A (en) Seal member for high-temperature piping flange
WO2014132832A1 (en) Heat-resistant gasket
JP2004278611A (en) Wafer type steam trap
JP2004286162A (en) Preventive device of water leakage of sluice valve and so on
JPH10110716A (en) Bolt locking ring for piping flange
JPS58143813A (en) Filter apparatus
JP2004239310A (en) Leak diffusion preventing structure for low-temperature liquefied gas

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20051227

A131 Notification of reasons for refusal

Effective date: 20080226

Free format text: JAPANESE INTERMEDIATE CODE: A131

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20080701