JP5901934B2 - steam trap - Google Patents

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JP5901934B2
JP5901934B2 JP2011229972A JP2011229972A JP5901934B2 JP 5901934 B2 JP5901934 B2 JP 5901934B2 JP 2011229972 A JP2011229972 A JP 2011229972A JP 2011229972 A JP2011229972 A JP 2011229972A JP 5901934 B2 JP5901934 B2 JP 5901934B2
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outlet
valve
hole
valve chamber
outlet passage
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JP2013087891A (en
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知美 久保
知美 久保
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Tlv Co Ltd
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Tlv Co Ltd
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Description

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自動的に排出するスチームトラップに関し、特に排出復水の高速流による出口通路の侵食を防止できるようにしたものに関する。 The present invention relates to a steam trap that automatically discharges condensate generated in a steam piping system such as a steam transport pipe and steam-using equipment, and more particularly to prevent erosion of an outlet passage due to a high-speed flow of discharged condensate. About.

出口通路の侵食を防止できるようにしたスチームトラップは、例えば特許文献１に開示されている。これは、入口が上部に開口した弁室と、この弁室から隔てられ出口が上部に開口した出口通路とをケーシングに形成し、弁室側端に弁孔が開口し出口通路側端に分岐孔が開口した弁座部材を出口通路の下部に設けて弁室と出口通路を連通し、弁孔を開閉する弁部材を弁室内に配置し、出口側端の排出孔を出口に向けて開口させた耐浸食性を有する管部材を出口通路内に配置して、管部材の内側を通して分岐孔と出口側を連通するものである。 A steam trap that can prevent erosion of the outlet passage is disclosed in, for example, Patent Document 1. This consists of a valve chamber with an inlet opening at the top and an outlet passage that is separated from the valve chamber and has an outlet opening at the top. A valve hole opens at the valve chamber side end and branches to the outlet passage side end. A valve seat member with an opening is provided in the lower part of the outlet passage, the valve chamber communicates with the outlet passage, a valve member that opens and closes the valve hole is arranged in the valve chamber, and the discharge hole at the outlet side end opens toward the outlet The erosion resistant pipe member is disposed in the outlet passage, and the branch hole and the outlet side are communicated with each other through the inside of the pipe member.

特開２００２−２７６８９３号公報JP 2002-276893 A

上記従来技術のスチームトラップは、排出復水が耐浸食性を有する管部材の内側を流下し出口通路の内壁に衝突しないので、出口通路の浸食を防止できるものであるが、
管部材排出孔から排出された排出復水が出口の内壁に衝突するために、出口の内壁が排出復水によって侵食されると言う問題点があった。 The steam trap of the above prior art can prevent the erosion of the outlet passage because the discharged condensate flows down the inside of the pipe member having erosion resistance and does not collide with the inner wall of the outlet passage.
Since the discharged condensate discharged from the tube member discharge hole collides with the inner wall of the outlet, there is a problem that the inner wall of the outlet is eroded by the discharged condensate.

したがって本発明が解決しようとする課題は、出口通路及び出口の侵食を防止できるスチームトラップを提供することである。 Therefore, the problem to be solved by the present invention is to provide a steam trap that can prevent erosion of the outlet passage and the outlet.

上記の課題を解決するために、本発明のスチームトラップは、入口が上部に開口した弁室と、この弁室から隔てられ出口が上部に開口した出口通路とをケーシングに形成し、弁室側端に弁孔が開口し出口通路側端に分岐孔が開口した弁座部材を出口通路の下部に設けて弁室と出口通路を連通し、弁孔を開閉する弁部材を弁室内に配置し、出口側端の排出孔を出口に向けて開口させた耐浸食性を有する管部材を出口通路内に配置して、管部材の内側を通して分岐孔と出口側を連通するものにおいて、出口に向けて拡開させた耐浸食性を有する拡開管部材を排出孔に連結し、拡開管部材の出口側端を出口配管が接続される出口内に開口させて、拡開管部材の内側を通して排出孔と出口を連通することを特徴とするものである。 In order to solve the above-described problems, the steam trap of the present invention has a valve chamber with an inlet opening upward and an outlet passage that is separated from the valve chamber and has an outlet opening upward. A valve seat member with a valve hole at the end and a branch hole at the outlet passage side end is provided in the lower part of the outlet passage, the valve chamber communicates with the outlet passage, and a valve member for opening and closing the valve hole is disposed in the valve chamber. An erosion-resistant tube member with an outlet hole at the outlet end facing the outlet is disposed in the outlet passage, and the branch hole and the outlet side communicate with each other through the inside of the tube member. The expanded pipe member having erosion resistance that is expanded and connected is connected to the discharge hole, and the outlet side end of the expanded pipe member is opened in the outlet to which the outlet pipe is connected. The discharge hole and the outlet communicate with each other.

本発明によれば、排出復水が耐浸食性を有する管部材及び拡開管部材の内側を流下し出口通路及び出口の内壁に衝突しないので、出口通路及び出口の浸食を防止できるという優れた効果を奏する。 According to the present invention, the discharged condensate flows down the inside of the pipe member having the erosion resistance and the expanded pipe member and does not collide with the inner wall of the outlet passage and the outlet, so that the outlet passage and the outlet can be prevented from being eroded. There is an effect.

本発明の実施の形態に係わるフリーフロート式スチームトラップの断面図である。It is sectional drawing of the free float type steam trap concerning embodiment of this invention.

以下、本発明の実施の形態について、図１を参照して説明する。本実施形態はフリーフロート式スチームトラップに適用したものである。鋳造成形された本体１に蓋部材２をボルトで締結してケーシングを形成する。ケーシングの内部は仕切壁３で、入口４の連通する弁室５と出口６の連通する出口通路７に隔てる。入口４は弁室５の上部に開口し、スクリーン８及び通孔９を開けたフロートカバー１０を介して連通する。出口通路７の内周壁に出口６側に向けて開口する排出孔１１を有する管部材１２を取り付ける。管部材１２は出口通路７が排出流体によって浸食されることを防止するために耐浸食性を有するステンレス鋼で作る。出口６に向けて拡開させた拡開管部材２８を排出孔１１に圧入して管部材１２に拡開管部材２８を連結する。拡開管部材２８は出口６が排出流体によって浸食されることを防止するために耐浸食性を有するステンレス鋼で作る。拡開管部材２８の出口側端は出口配管２７が接続される出口６内に出口６の軸方向に向けて開口させる。管部材１２の内側を通して分岐孔が出口６側に連通し、拡開管部材２８の内側を通して排出孔１２が出口６に連通する。弁室５内に弁部材としての中空球形のフロート１３を自由状態で配置する。フロート１３は弁室５の液位に従って浮上降下し、その外表面で下記の弁孔１４の弁室５側端を開閉する。本体１の底壁にフロート座１５を形成する。フロート１３はフロート座１５に接した位置で弁孔１４を完全に閉じる。 Hereinafter, an embodiment of the present invention will be described with reference to FIG. This embodiment is applied to a free float type steam trap. The casing 1 is formed by fastening the lid member 2 to the cast body 1 with bolts. The interior of the casing is a partition wall 3 and is divided into a valve chamber 5 that communicates with the inlet 4 and an outlet passage 7 that communicates with the outlet 6. The inlet 4 opens to the upper part of the valve chamber 5 and communicates via a float cover 10 having a screen 8 and a through hole 9. A pipe member 12 having a discharge hole 11 that opens toward the outlet 6 is attached to the inner peripheral wall of the outlet passage 7. The pipe member 12 is made of stainless steel having erosion resistance to prevent the outlet passage 7 from being eroded by the exhaust fluid. The expanded tube member 28 expanded toward the outlet 6 is press-fitted into the discharge hole 11 and the expanded tube member 28 is connected to the tube member 12. The expansion tube member 28 is made of stainless steel having erosion resistance to prevent the outlet 6 from being eroded by the discharged fluid. The outlet side end of the expanded pipe member 28 is opened toward the axial direction of the outlet 6 in the outlet 6 to which the outlet pipe 27 is connected. The branch hole communicates with the outlet 6 through the inside of the pipe member 12, and the discharge hole 12 communicates with the outlet 6 through the inside of the expanded pipe member 28. A hollow spherical float 13 as a valve member is disposed in the valve chamber 5 in a free state. The float 13 rises and falls according to the liquid level in the valve chamber 5 and opens and closes the valve chamber 5 side end of the following valve hole 14 on the outer surface thereof. A float seat 15 is formed on the bottom wall of the main body 1. The float 13 completely closes the valve hole 14 at a position in contact with the float seat 15.

本体１の側壁開口から出口通路７及び仕切壁３を貫通して先端が弁室５に突出する弁座部材１６を挿入し、本体１にねじ結合する弁座保持部材１７で弁座部材１６を保持する。弁座部材１６は軸方向の中心に貫通した弁孔１４と弁孔１４から上方に向けて開口した分岐孔１８を有する。弁座部材１６と本体１の仕切壁３の間に気密保持用のＯリング１９を設ける。弁座部材１６は外面に一体に突出した凸部２０を有し、本体１は弁座部材１６の凸部２０が嵌る凹部２１を有する。弁座部材１６の凸部２０を本体１の凹部２１に嵌め合わせることにより、分岐孔１８を出口通路７に向ける。蓋部材２に排気弁孔２２を開けた排気弁座部材２３を間に保持ガイド２４を挟んでねじ結合する。保持ガイド２４に係止するバネ２５で温度応動素子２６を保持ガイド２４に係止する。温度応動素子２６はほぼ円板状の密閉体カプセルで図示はしていないが内部に薄板ダイヤフラムと熱膨張収縮液を充填して形成する。排気弁孔２２は蓋部材に形成した排気通路２７から管部材１２の排出孔１１を通して出口６に連通する。 A valve seat member 16 is inserted through the outlet passage 7 and the partition wall 3 from the side wall opening of the main body 1 and the tip protrudes into the valve chamber 5, and the valve seat member 16 is attached by a valve seat holding member 17 screwed to the main body 1. Hold. The valve seat member 16 has a valve hole 14 penetrating in the center in the axial direction and a branch hole 18 opened upward from the valve hole 14. An O-ring 19 for maintaining airtightness is provided between the valve seat member 16 and the partition wall 3 of the main body 1. The valve seat member 16 has a convex portion 20 that protrudes integrally on the outer surface, and the main body 1 has a concave portion 21 in which the convex portion 20 of the valve seat member 16 fits. By fitting the convex portion 20 of the valve seat member 16 into the concave portion 21 of the main body 1, the branch hole 18 is directed to the outlet passage 7. An exhaust valve seat member 23 having an exhaust valve hole 22 formed in the lid member 2 is screwed with a holding guide 24 interposed therebetween. The temperature responsive element 26 is locked to the holding guide 24 by a spring 25 that is locked to the holding guide 24. The temperature responsive element 26 is a substantially disk-shaped hermetically sealed capsule, which is not illustrated, but is formed by filling a thin plate diaphragm and a thermal expansion / contraction liquid inside. The exhaust valve hole 22 communicates with the outlet 6 from the exhaust passage 27 formed in the lid member through the discharge hole 11 of the pipe member 12.

上記フリーフロート式スチームトラップの作動は次の通りである。蒸気と復水及び空気が入口４から弁室５に流入し、蒸気と空気が上部に復水が下部に分離して溜まる。弁室５内の温度が高い場合、温度応動素子２６は膨張して排気弁孔２２を閉じる。弁室５内の温度が低くなると、温度応動素子２６は収縮して排気弁孔２２を開き、弁室５内の復水や空気を排気弁孔２２から出口６へ排出する。弁室５内の液位が上昇すると、フロート１３は浮上して弁孔１４を開き、弁室５内の復水を主弁口１８から出口６へ排出する。復水の排出によって弁室５内の液位が低下すると、フロート１３は降下して外表面で弁孔１４を直接閉じる。 The operation of the free float steam trap is as follows. Steam, condensate and air flow into the valve chamber 5 from the inlet 4, and steam and air separate and accumulate in the upper part and condensate in the lower part. When the temperature in the valve chamber 5 is high, the temperature responsive element 26 expands and closes the exhaust valve hole 22. When the temperature in the valve chamber 5 decreases, the temperature responsive element 26 contracts to open the exhaust valve hole 22, and condensate and air in the valve chamber 5 are discharged from the exhaust valve hole 22 to the outlet 6. When the liquid level in the valve chamber 5 rises, the float 13 rises, opens the valve hole 14, and discharges the condensate in the valve chamber 5 from the main valve port 18 to the outlet 6. When the liquid level in the valve chamber 5 decreases due to the discharge of condensate, the float 13 descends and directly closes the valve hole 14 at the outer surface.

上記実施例ではフリーフロート式スチームトラップを例示したが、本発明はレバーフロート式やフリーバケット式やレバーバケット式あるいはディスク式その他の型式のスチームトラップにも適用できるものである。 In the above embodiment, the free float type steam trap is illustrated, but the present invention can be applied to a lever float type, a free bucket type, a lever bucket type, a disk type and other types of steam traps.

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自動的に排出するスチームトラップに利用することができる。 INDUSTRIAL APPLICABILITY The present invention can be used for a steam trap that automatically discharges condensate generated in a steam piping system such as a steam transport pipe or a steam using device.

１ 本体
２ 蓋部材
４ 入口
５ 弁室
６ 出口
７ 出口通路
１１ 排出孔
１２ 管部材
１３ フロート
１４ 弁孔
１６ 弁座部材
１８ 分岐孔
２７ 出口配管
２８ 拡開管部材 DESCRIPTION OF SYMBOLS 1 Main body 2 Lid member 4 Inlet 5 Valve chamber 6 Outlet 7 Outlet passage 11 Exhaust hole 12 Pipe member 13 Float 14 Valve hole 16 Valve seat member 18 Branch hole 27 Outlet pipe 28 Expanded pipe member

Claims (1)

入口が上部に開口した弁室と、この弁室から隔てられ出口が上部に開口した出口通路とをケーシングに形成し、弁室側端に弁孔が開口し出口通路側端に分岐孔が開口した弁座部材を出口通路の下部に設けて弁室と出口通路を連通し、弁孔を開閉する弁部材を弁室内に配置し、出口側端の排出孔を出口に向けて開口させた耐浸食性を有する管部材を出口通路内に配置して、管部材の内側を通して分岐孔と出口側を連通するものにおいて、出口に向けて拡開させた耐浸食性を有する拡開管部材が排出孔に連結されており、拡開管部材の出口側端が、出口配管が接続される出口内に開口されており、拡開管部材の内側を通して排出孔と出口とが連通されていることを特徴とするスチームトラップ。 A valve chamber having an inlet opening at the top and an outlet passage separated from the valve chamber and having an outlet opening at the top is formed in the casing. A valve hole is opened at the valve chamber side end and a branch hole is opened at the outlet passage side end. The valve seat member is provided in the lower part of the outlet passage, the valve chamber communicates with the outlet passage, the valve member that opens and closes the valve hole is disposed in the valve chamber, and the discharge hole at the outlet side end opens toward the outlet. An erodible pipe member that is eroded and expanded toward the outlet is discharged when an erodible pipe member is placed in the outlet passage and the branch hole and the outlet side communicate with each other through the inside of the pipe member. It is connected to the hole, the outlet side end of the expanded pipe member is opened in the outlet to which the outlet pipe is connected , and the discharge hole and the outlet are communicated through the inside of the expanded pipe member. A featured steam trap.
JP2011229972A 2011-10-19 2011-10-19 steam trap Active JP5901934B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112253983A (en) * 2020-10-30 2021-01-22 上海沪东造船阀门有限公司 Marine lever floating ball type drain valve

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104456056B (en) * 2014-12-08 2018-01-23 章华 A kind of condensate discharge structure of top row vapour safety relief valve outlet side

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02102995A (en) * 1988-10-13 1990-04-16 Tlv Co Ltd Trap and manufacture thereof
JP2002276893A (en) * 2001-03-15 2002-09-25 Tlv Co Ltd Float valve
JP4890115B2 (en) * 2006-06-15 2012-03-07 株式会社テイエルブイ Float type steam trap

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112253983A (en) * 2020-10-30 2021-01-22 上海沪东造船阀门有限公司 Marine lever floating ball type drain valve
CN112253983B (en) * 2020-10-30 2022-03-15 上海沪东造船阀门有限公司 Marine lever floating ball type drain valve

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