JP6077834B2 - Float type drain trap - Google Patents

Float type drain trap Download PDF

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JP6077834B2
JP6077834B2 JP2012249528A JP2012249528A JP6077834B2 JP 6077834 B2 JP6077834 B2 JP 6077834B2 JP 2012249528 A JP2012249528 A JP 2012249528A JP 2012249528 A JP2012249528 A JP 2012249528A JP 6077834 B2 JP6077834 B2 JP 6077834B2
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inlet
valve
valve chamber
drain
float
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JP2014098419A (en
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湯本　秀昭
秀昭 湯本
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Tlv Co Ltd
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Tlv Co Ltd
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Description

本発明は、蒸気配管系や圧縮空気配管系に発生するドレンをフロートを用いて自動的に排出するフロート式ドレントラップに関する。 The present invention relates to a float drain trap that automatically discharges drain generated in a steam piping system or a compressed air piping system using a float.

従来のフロート式ドレントラップは、例えば、特許文献１に示されたものがある。これは、ケーシングにドレン流入管に接続される入口と、入口が上部に開口する弁室と、弁室の下部に開口する弁口と、弁口を通して弁室から連通する出口とを形成し、弁室の液位に応じて浮上降下して外表面で直接にあるいはレバー及び弁体を介して弁口を開閉するフロートを弁室に配置したものである。 A conventional float drain trap is disclosed in Patent Document 1, for example. This forms an inlet connected to the drain inlet pipe in the casing, a valve chamber whose inlet opens to the upper part, a valve opening which opens to the lower part of the valve chamber, and an outlet which communicates from the valve chamber through the valve opening, A float that opens and closes according to the liquid level in the valve chamber and opens and closes the valve port directly on the outer surface or via a lever and a valve body is disposed in the valve chamber.

特開２００５−３６９０１号公報JP-A-2005-36901

上記従来のフロート式ドレントラップは、ドレン流入管と入口との間に水頭差を確保できないために、ドレン流入管のドレンが入口を通して弁室内に流下し難いという問題点があった。 The conventional float drain trap has a problem in that it is difficult for the drain of the drain inlet pipe to flow into the valve chamber through the inlet because a head difference cannot be secured between the drain inlet pipe and the inlet.

したがって本発明が解決しようとする課題は、ドレン流入管内のドレンが入口を通して弁室に流下し易くすることである。 Therefore, the problem to be solved by the present invention is to make it easy for the drain in the drain inflow pipe to flow down to the valve chamber through the inlet.

上記の課題を解決するために、本発明のフロート式ドレントラップは、ケーシングに入口と、入口が上部に開口する弁室と、弁室の下部に開口する弁口と、弁口を通して弁室から連通する出口とを形成し、弁室の液位に応じて浮上降下して外表面で直接にあるいはレバー及び弁体を介して弁口を開閉するフロートを弁室に配置したものにおいて、ケーシングに入口の上部に開口しドレン流入管に接続される流入口を形成し、弁室の入口の上方と流入口とをバランス通路で連通したことを特徴とするものである。 In order to solve the above problems, a float drain trap of the present invention includes an inlet in a casing, a valve chamber having an inlet opening at an upper portion, a valve port opening at a lower portion of the valve chamber, and a valve chamber through the valve port. A float that opens and closes according to the liquid level in the valve chamber and opens and closes the valve port directly on the outer surface or via the lever and valve body is disposed in the casing. An inflow port is formed in the upper part of the inlet and connected to the drain inflow pipe, and the upper part of the inlet of the valve chamber and the inflow port are connected by a balance passage.

本発明のフロート式ドレントラップは、ケーシングに入口の上部に開口しドレン流入管に接続される流入口を形成し、弁室の入口の上方と流入口とをバランス通路で連通したものであるので、ドレン流入管に接続される流入口と入口との間に水頭差を確保でき、ドレン流入管内のドレンが流入口から入口を通して弁室に流下し易くなるという優れた効果を生じる。 Since the float type drain trap of the present invention forms an inlet opening in the casing at the upper part of the inlet and connected to the drain inlet pipe, the upper part of the inlet of the valve chamber and the inlet are connected by a balance passage. A water head difference can be ensured between the inlet and the inlet connected to the drain inlet pipe, and an excellent effect that drain in the drain inlet pipe easily flows from the inlet through the inlet to the valve chamber is produced.

本発明の実施の形態に係わるフロート式ドレントラップの断面図である。It is sectional drawing of the float type drain 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。本発明のフロート式ドレントラップは、本体１に流入口２と入口３とバランス通路４と出口５を有する蓋体６をボルトで締結して内部に弁室７を有するケーシングを構成する。ドレン流入管に接続される流入口２は入口３の上部に開口し、入口３は弁室７の上部に開口する。バランス通路４は弁室７の入口３の上方と流入口２とを連通する。ドレン流入管に接続される流入口２の中心Ａと入口３の中心Ｂとの間に水頭差Ｃを確保でき、ドレン流入管内のドレンが流入口２から入口３を通して弁室７に流下し易くなる。弁室７の下部と出口４を連通する弁口８を有する弁座部材９を蓋体６下部の出口５の弁室７側端にねじ結合する。出口５は弁口８を通して弁室７の下部に開口する。 Hereinafter, an embodiment of the present invention will be described with reference to FIG. The float drain trap of the present invention constitutes a casing having a valve chamber 7 therein by fastening a lid 6 having an inlet 2, an inlet 3, a balance passage 4 and an outlet 5 to a main body 1 with bolts. The inlet 2 connected to the drain inlet pipe opens to the upper part of the inlet 3, and the inlet 3 opens to the upper part of the valve chamber 7. The balance passage 4 communicates the upper part of the inlet 3 of the valve chamber 7 with the inlet 2. A water head difference C can be secured between the center A of the inlet 2 connected to the drain inlet pipe and the center B of the inlet 3, and the drain in the drain inlet pipe can easily flow from the inlet 2 to the valve chamber 7 through the inlet 3. Become. A valve seat member 9 having a valve port 8 communicating with the lower part of the valve chamber 7 and the outlet 4 is screwed to the valve chamber 7 side end of the outlet 5 at the lower part of the lid 6. The outlet 5 opens to the lower part of the valve chamber 7 through the valve port 8.

弁室７内に揺動軸１０を掛け渡して支持し、揺動軸１０にレバー１１を回転可能に支持する。レバー１１に弁室７の液位に応じて浮上降下する中空球形のフロート１２を連結する。レバー１１に弁アーム軸１３を掛け渡し、弁アーム軸１３に弁アーム１４を回転可能に支持する。弁アーム１４に弁体軸１５を掛け渡し、弁体軸１５に弁口８を開閉する球状の弁体１６の球心を回転可能に支持する。弁室７内にストッパー軸１７を掛け渡し、レバー１１にストッパー軸１７が貫通する窓１８を開口する。フロート１２の浮上及び降下によるレバー１１の時計回り方向及び反時計回り方向への回転が窓１８の右端及び左端で規制される。 A swing shaft 10 is spanned and supported in the valve chamber 7, and a lever 11 is rotatably supported on the swing shaft 10. A hollow spherical float 12 that rises and falls according to the liquid level in the valve chamber 7 is connected to the lever 11. The valve arm shaft 13 is stretched over the lever 11, and the valve arm 14 is rotatably supported on the valve arm shaft 13. A valve body shaft 15 is stretched over the valve arm 14, and a spherical center of a spherical valve body 16 that opens and closes the valve port 8 is rotatably supported on the valve body shaft 15. A stopper shaft 17 is spanned in the valve chamber 7, and a window 18 through which the stopper shaft 17 passes is opened in the lever 11. The rotation of the lever 11 in the clockwise direction and the counterclockwise direction due to the rising and lowering of the float 12 is restricted at the right end and the left end of the window 18.

弁室７内の液位が低い場合は、図１に示すようにフロート１２は底部に位置し、弁体１６は弁口８を閉じている。流入口２を通して入口３から流入するドレンにより弁室７内の液位が上昇すると、フロート１２が浮上してレバー１１が揺動軸１０の周りに時計回り方向に回転し、弁アーム１４が弁アーム軸１３の周りに回転しながら上動し、弁アーム軸１３の上動により弁体１６が上動して弁口８を開く。これにより、弁室７のドレンを出口５から排出する。 When the liquid level in the valve chamber 7 is low, as shown in FIG. 1, the float 12 is located at the bottom, and the valve body 16 closes the valve port 8. When the liquid level in the valve chamber 7 rises due to the drain flowing from the inlet 3 through the inlet 2, the float 12 rises, the lever 11 rotates clockwise around the swing shaft 10, and the valve arm 14 moves to the valve The valve body 16 is moved upward by rotating around the arm shaft 13 and the valve body 16 is moved upward to open the valve port 8. Thereby, the drain of the valve chamber 7 is discharged from the outlet 5.

ドレンの排出により弁室７内の液位が低下すると、フロート１２が降下してレバー１１が揺動軸１０の周りに反時計回り方向に回転し、弁アーム１４が弁アーム軸１３の周りに回転しながら下動し、弁アーム軸１３の下動により弁体１６が下動して弁口８を閉じる。これにより、気体の漏出を防止する。尚、本実施の形態においては、レバーフロート式ドレントラップを用いた例を示したが、フリーフロート式ドレントラップを用いることもできる。 When the liquid level in the valve chamber 7 decreases due to drainage, the float 12 descends, the lever 11 rotates counterclockwise around the swing shaft 10, and the valve arm 14 moves around the valve arm shaft 13. The valve body 16 is moved downward while the valve arm shaft 13 is moved downward to close the valve port 8. This prevents gas leakage. In the present embodiment, an example using a lever float type drain trap is shown, but a free float type drain trap can also be used.

本発明は、蒸気配管系や圧縮空気配管系に発生するドレンをフロートを用いて自動的に排出するフロート式ドレン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 float type drain trap that automatically discharges drain generated in a steam piping system or a compressed air piping system using a float.

１ 本体
２ 流入口
３ 入口
４ バランス通路
５ 出口
６ 蓋体
７ 弁室
８ 弁口
９ 弁座部材
１０ 揺動軸
１１ レバー
１２ フロート
１３ 弁アーム軸
１４ 弁アーム
１５ 弁体軸
１６ 弁体
Ａ 流入口の中心
Ｂ 入口の中心Ｂ
Ｃ 水頭差 DESCRIPTION OF SYMBOLS 1 Main body 2 Inlet 3 Inlet 4 Balance channel | path 5 Outlet 6 Lid body 7 Valve chamber 8 Valve port 9 Valve seat member 10 Oscillating shaft 11 Lever 12 Float 13 Valve arm shaft 14 Valve arm 15 Valve body shaft 16 Valve body A Inlet Center B Entrance Center B
C water head difference

Claims (1)

ケーシングに入口と、入口が上部に開口する弁室と、弁室の下部に開口する弁口と、弁口を通して弁室から連通する出口とを形成し、弁室の液位に応じて浮上降下して外表面で直接にあるいはレバー及び弁体を介して弁口を開閉するフロートを弁室に配置したものにおいて、ケーシングに入口の上部に開口しドレン流入管に接続される流入口を形成し、弁室の入口の上方と流入口の上部とを弁室の入口の上方の気体を流入口に戻すバランス通路で連通し、バランス通路の上端を流入口の上端よりも上方に形成したことを特徴とするフロート式ドレントラップ。 Forms an inlet in the casing, a valve chamber with the inlet opening at the top, a valve port opening at the bottom of the valve chamber, and an outlet communicating with the valve chamber through the valve port, and rises and falls according to the liquid level in the valve chamber In the valve chamber, a float that opens and closes the valve port directly on the outer surface or via a lever and a valve element is provided in the casing, and an inflow port that opens at the top of the inlet and is connected to the drain inlet pipe is formed. The upper part of the inlet of the valve chamber is connected to the upper part of the inlet by a balance passage for returning the gas above the inlet of the valve chamber to the inlet, and the upper end of the balance passage is formed above the upper end of the inlet. Float type drain trap characterized by
JP2012249528A 2012-11-13 2012-11-13 Float type drain trap Active JP6077834B2 (en)

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JP2012249528A JP6077834B2 (en) 2012-11-13 2012-11-13 Float type drain trap

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JP2012249528A JP6077834B2 (en) 2012-11-13 2012-11-13 Float type drain trap

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JP2014098419A JP2014098419A (en) 2014-05-29
JP6077834B2 true JP6077834B2 (en) 2017-02-08

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CN113551145B (en) * 2021-08-07 2022-08-19 纽顿流体科技有限公司 Ball float proportional control trap

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JPS60215193A (en) * 1984-04-11 1985-10-28 株式会社　テイエルブイ Large-capacity valve
JPH082559Y2 (en) * 1990-08-09 1996-01-29 株式会社テイエルブイ Free float type drain trap
JP3476254B2 (en) * 1994-08-12 2003-12-10 株式会社テイエルブイ Float trap
JP4387718B2 (en) * 2003-07-15 2009-12-24 株式会社テイエルブイ Float type drain trap

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