JP4494929B2 - Float type steam trap - Google Patents

Float type steam trap Download PDF

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Publication number
JP4494929B2
JP4494929B2 JP2004301461A JP2004301461A JP4494929B2 JP 4494929 B2 JP4494929 B2 JP 4494929B2 JP 2004301461 A JP2004301461 A JP 2004301461A JP 2004301461 A JP2004301461 A JP 2004301461A JP 4494929 B2 JP4494929 B2 JP 4494929B2
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Japan
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float
valve
steam trap
spherical float
valve port
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JP2006112542A (en
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利行 関
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Tlv Co Ltd
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Tlv Co Ltd
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Description

本発明は、気体と液体の比重差を利用して、弁室内に収容した球形フロートの外表面で直接に弁口を開閉することにより、蒸気配管系に発生する復水を自動的に排出するフロート式スチームトラップに関する。   The present invention automatically discharges the condensate generated in the steam piping system by opening and closing the valve port directly on the outer surface of the spherical float accommodated in the valve chamber using the specific gravity difference between gas and liquid. It relates to float type steam trap.

従来のフロート式スチームトラップは、弁ケーシングで入口と弁室と出口を形成し、弁室と出口を連通する弁口を弁室下部に形成し、弁室内に収容した球形フロートの外表面で直接に弁口を開閉するものである。   A conventional float steam trap has an inlet, a valve chamber, and an outlet formed by a valve casing, and a valve port that connects the valve chamber and the outlet is formed at the lower portion of the valve chamber. The valve opening is opened and closed.

上記従来のフロート式スチームトラップは、排出復水が弁口で再蒸発するために弁口を高速に流下し、弁口内壁にエロージョンを生じたり、流体中に溶解している金属イオンが弁口内壁に突き刺さって次第に堆積したりする問題点があった。
特開平６−２４１３９６号公報 In the conventional float type steam trap, the drained condensate re-evaporates at the valve port, so the valve port flows down at a high speed, causing erosion on the inner wall of the valve port, or metal ions dissolved in the fluid flowing through the valve port. There was a problem that the inner wall was stuck and gradually accumulated.
JP-A-6-241396

解決しようとする課題は、弁口を流下する復水の再蒸発を低減できるフロート式スチームトラップを提供することである。   The problem to be solved is to provide a float steam trap that can reduce the re-evaporation of condensate flowing down the valve port.

上記の課題を解決するために講じた本発明の手段は、弁ケーシングで入口と弁室と出口を形成し、弁室と出口を連通する弁口を弁室下部に形成し、弁室内に収容した球形フロートの外表面で直接に弁口を開閉するフロート式スチームトラップにおいて、別体に形成した複数個の球形フロートを互いに自由状態で上下方向に収容し、球形フロートは水面が最上段の球形フロートに達してから浮上するようにし、最下段の球形フロートの外表面で直接に弁口を開閉することを特徴とするフロート式スチームトラップにある。   The means of the present invention devised to solve the above problems is that the valve casing forms an inlet, a valve chamber, and an outlet, and a valve port that communicates the valve chamber and the outlet is formed in the lower portion of the valve chamber, and is accommodated in the valve chamber. In a float type steam trap that opens and closes the valve port directly on the outer surface of the spherical float, multiple spherical floats formed separately are accommodated in the vertical direction in a free state. The float type steam trap is characterized in that it floats after reaching the float and opens and closes the valve port directly on the outer surface of the bottom spherical float.

本発明は、復水を最上段の球形フロートに達するまで溜めることができるので、弁口を流下する復水の温度を低下させて再蒸発を低減できるという優れた効果を生じる。   According to the present invention, since the condensate can be accumulated until it reaches the uppermost spherical float, the temperature of the condensate flowing down the valve port can be lowered to reduce re-evaporation.

本発明のフロート式スチームトラップは、別体に形成した複数個の球形フロートを互いに自由状態で上下方向に収容し、球形フロートは水面が最上段の球形フロートに達してから浮上するようにし、最下段の球形フロートの外表面で直接に弁口を開閉するものであるので、復水を最上段の球形フロートに達するまで溜めることができる。そのため、弁口を流下する復水の温度を低下させて再蒸発を低減できる。   The float type steam trap of the present invention accommodates a plurality of spherical floats formed separately in the vertical direction in a free state. The spherical float floats after the water surface reaches the uppermost spherical float. Since the valve opening is opened and closed directly on the outer surface of the lower spherical float, the condensate can be stored until it reaches the uppermost spherical float. Therefore, the temperature of the condensate flowing down the valve port can be lowered to reduce re-evaporation.

上記の技術的手段の具体例を示す実施例を説明する（図１参照）。本体１に蓋２をボルト（図示せず）で締結して弁ケーシングを構成し、内部に弁室３を形成する。弁室３の上部に入口４を開口させ、入口４と同一軸上に出口５を形成する。本体１の下部に弁座取付口６から弁座部材７を挿入し、弁座取付口６を塞ぐプラグ８で保持する。弁座部材７は弁室３に開口した弁口９と弁口９から連通する通孔１０を有し、通孔１０が本体１に形成した出口通路１１を介して出口５に連通する。   An embodiment showing a specific example of the above technical means will be described (see FIG. 1). A lid 2 is fastened to the main body 1 with bolts (not shown) to form a valve casing, and a valve chamber 3 is formed inside. An inlet 4 is opened at the top of the valve chamber 3 and an outlet 5 is formed on the same axis as the inlet 4. The valve seat member 7 is inserted into the lower portion of the main body 1 from the valve seat mounting port 6 and is held by a plug 8 that closes the valve seat mounting port 6. The valve seat member 7 has a valve port 9 opened in the valve chamber 3 and a through hole 10 communicating with the valve port 9, and the through hole 10 communicates with the outlet 5 through an outlet passage 11 formed in the main body 1.

弁室３内に中空の球形フロートを上下方向に複数個自由状態で収容する。本実施例では２個収容している。下球形フロート１２は外表面で直接に弁口９を開閉し、上球形フロート１３は下球形フロー１２の上に位置する。弁室３の底部に下球形フロート１２の降下位置を定めるフロート座１４を形成する。弁室３の側部内壁に上球形フロート１３を上下に案内する案内壁１５を形成する。案内壁１５は下球形フロート１２が弁口９を閉じた状態において、上球形フロート１３の上下方向の中心軸１６を下球形フロート１２の上下方向の中心軸１７よりも弁口９から離れた入口４側に偏心させる。これにより、下球形フロート１２が弁口９を確実に閉じることができる。   A plurality of hollow spherical floats are accommodated in the valve chamber 3 in the vertical direction. In this embodiment, two are accommodated. The lower spherical float 12 opens and closes the valve port 9 directly on the outer surface, and the upper spherical float 13 is positioned on the lower spherical flow 12. A float seat 14 that defines the lowering position of the lower spherical float 12 is formed at the bottom of the valve chamber 3. A guide wall 15 for guiding the upper spherical float 13 up and down is formed on the inner side wall of the valve chamber 3. In the state where the lower spherical float 12 closes the valve port 9, the guide wall 15 has an upper central axis 16 of the upper spherical float 13 that is farther from the valve port 9 than the vertical central axis 17 of the lower spherical float 12. Eccentric to the 4th side. Thereby, the lower spherical float 12 can reliably close the valve port 9.

入口５から流入する蒸気と復水は、蒸気が上部に復水が下部に分離して溜まる。液面が上昇して上球形フロート１３の吃水線１８以上になると、下球形フロート１２と上球形フロート１３が浮上し、下球形フロート１２が弁口９を開けて復水を出口５に排出する。復水の排出により液面が低下すると、下球形フロート１２と上球形フロート１３が降下し、上球形フロート１３の吃水線１８まで液面が低下したときに下球形フロート１２が弁口９を閉じる。   The steam and condensate flowing in from the inlet 5 accumulate with the steam separated at the top and the condensate at the bottom. When the liquid level rises and becomes above the inundation line 18 of the upper spherical float 13, the lower spherical float 12 and the upper spherical float 13 rise, the lower spherical float 12 opens the valve port 9 and discharges the condensate to the outlet 5. . When the liquid level decreases due to the discharge of the condensate, the lower spherical float 12 and the upper spherical float 13 are lowered, and the lower spherical float 12 closes the valve port 9 when the liquid level decreases to the flooding line 18 of the upper spherical float 13. .

本発明のフロート式スチームトラップの断面図。Sectional drawing of the float type steam trap of this invention.

符号の説明Explanation of symbols

１ 本体
２ 蓋
３ 弁室
４ 入口
５ 出口
６ 弁座取付口
７ 弁座部材
８ プラグ
９ 弁口
１０ 通孔
１１ 出口通路
１２ 下球形フロート
１３ 上球形フロート
１４ フロート座
１５ 案内壁
１６ 上球形フロート１３の上下方向の中心軸
１７ 下球形フロート１２の上下方向の中心軸
１８ 上球形フロート１３の吃水線
DESCRIPTION OF SYMBOLS 1 Main body 2 Lid 3 Valve chamber 4 Inlet 5 Outlet 6 Valve seat attachment port 7 Valve seat member 8 Plug 9 Valve port 10 Through hole 11 Outlet passage 12 Lower spherical float 13 Upper spherical float 14 Float seat 15 Guide wall 16 Upper spherical float 13 The center axis 17 in the vertical direction of the center axis 18 in the vertical direction of the lower spherical float 12 The submerged line of the upper spherical float 13

Claims (1)

弁ケーシングで入口と弁室と出口を形成し、弁室と出口を連通する弁口を弁室下部に形成し、弁室内に収容した球形フロートの外表面で直接に弁口を開閉するフロート式スチームトラップにおいて、別体に形成した複数個の球形フロートを互いに自由状態で上下方向に収容し、球形フロートは水面が最上段の球形フロートに達してから浮上するようにし、最下段の球形フロートの外表面で直接に弁口を開閉することを特徴とするフロート式スチームトラップ。
A float type that forms an inlet, a valve chamber, and an outlet in the valve casing, forms a valve port that connects the valve chamber and the outlet at the lower part of the valve chamber, and opens and closes the valve port directly on the outer surface of a spherical float housed in the valve chamber In the steam trap, a plurality of spherical floats formed separately are accommodated in the vertical direction in a free state. The spherical float floats after the water surface reaches the uppermost spherical float. Float type steam trap characterized by opening and closing the valve port directly on the outer surface.
JP2004301461A 2004-10-15 2004-10-15 Float type steam trap Expired - Fee Related JP4494929B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004301461A JP4494929B2 (en) 2004-10-15 2004-10-15 Float type steam trap

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Application Number Priority Date Filing Date Title
JP2004301461A JP4494929B2 (en) 2004-10-15 2004-10-15 Float type steam trap

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JP2006112542A JP2006112542A (en) 2006-04-27
JP4494929B2 true JP4494929B2 (en) 2010-06-30

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS552861A (en) * 1979-01-20 1980-01-10 Tlv Co Ltd Freeefloat type trap
JPH0293197A (en) * 1988-09-28 1990-04-03 Tlv Co Ltd Float valve
JPH08285188A (en) * 1995-04-14 1996-11-01 Tlv Co Ltd Float type trap
JP2002310398A (en) * 2001-04-13 2002-10-23 Tlv Co Ltd Float valve

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS552861A (en) * 1979-01-20 1980-01-10 Tlv Co Ltd Freeefloat type trap
JPH0293197A (en) * 1988-09-28 1990-04-03 Tlv Co Ltd Float valve
JPH08285188A (en) * 1995-04-14 1996-11-01 Tlv Co Ltd Float type trap
JP2002310398A (en) * 2001-04-13 2002-10-23 Tlv Co Ltd Float valve

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