JPS6056959B2 - Bucket float type steam trap - Google Patents
Bucket float type steam trapInfo
- Publication number
- JPS6056959B2 JPS6056959B2 JP1772579A JP1772579A JPS6056959B2 JP S6056959 B2 JPS6056959 B2 JP S6056959B2 JP 1772579 A JP1772579 A JP 1772579A JP 1772579 A JP1772579 A JP 1772579A JP S6056959 B2 JPS6056959 B2 JP S6056959B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- bucket
- float
- bucket float
- opening
- 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.)
- Expired
Links
Landscapes
- Float Valves (AREA)
Description
【発明の詳細な説明】
本発明は下向き開放バケツトフロートを用いたスチー
ムトラップに関し、特に、上部を球殻で作りその外表面
を弁座に当接して弁口を開閉するシール部としたバケツ
トフロートを弁室内に自由状態て収容し、その上部外表
面の球面シール部を、弁室の上部側方に突出せしめて配
置した弁座に直接に当接せしめて弁口を開閉する様にし
たバケットフロート形スチームトラップに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a steam trap using a downward-opening bucket float, and in particular to a bucket whose upper part is made of a spherical shell and whose outer surface is used as a sealing part to open and close the valve opening by contacting the valve seat. The float is accommodated in a free state in the valve chamber, and the spherical seal portion on the outer surface of the upper part is brought into direct contact with a valve seat arranged to protrude from the upper side of the valve chamber to open and close the valve port. This article relates to a bucket float type steam trap.
従来のバケツトフロート形スチームトラップのバケツ
トフロートはレバーやリンク等のメカニカルな手段で弁
ケーシングに連結されているので、機械的に案内されて
変位する。The bucket float of a conventional bucket float type steam trap is connected to the valve casing by a mechanical means such as a lever or a link, so that it is mechanically guided and displaced.
しかし、本発明に係わるトラップのバケツトフロート
は弁室内に自由状態で収容されているので、その変位は
浮上と弁室内の流体の流れによつて決定される。However, since the bucket float of the trap according to the invention is accommodated in a free state within the valve chamber, its displacement is determined by flotation and the flow of fluid within the valve chamber.
即ち、このバケツトフロートは内 部に導入される蒸気
量の多少、即ち浮力の大小により浮上降下し、その途中
で弁口に向かう弁室内の流体の流れの影響を受ける。
詳細に説明すると、バケツトフロートは鉛直上方に浮上
するのではなく、弁口の方向に横に、流体の流れで引寄
せられながら、概略斜め上方に浮上する。That is, this bucket float rises and falls depending on the amount of steam introduced into the interior, that is, the magnitude of buoyancy, and on the way, it is influenced by the flow of fluid in the valve chamber toward the valve port.
To explain in detail, the bucket float does not float vertically upward, but floats approximately diagonally upward while being pulled laterally toward the valve port by the flow of fluid.
従つて、バケツトフロートが浮上着座時の位置の真下に
降下して、次回にその位置から再び浮上するならば、バ
ケツトフロートは弁口方向に横に引寄せられながら浮上
して、その上部の球面シール部の頂点寄りの部位が先ず
弁座の下端に当接し、その後弁座面上を転動することに
なる。この結果、弁口を閉塞する時には、バケツトフカ
ートは開口のある下部が弁口から遠ざかつた傾斜した状
態、表現を変えれば、下部を弁口の反対側に振り出した
状態になる。この状態は不安定であるばかりでなく、内
部の蒸気が溢れ出し、このときの振動でバケツトフロー
トが弁座から離れ、蒸気を漏らす結果になる。 本発明
はこの様な不都合を解消せんとするもので、弁口を開け
た弁座を弁室の上部側方に突出せしめて配置し、上部を
球殻て作りその外表面を弁座に当接して弁口を開閉する
シール部とした下向き開放バケツトフロートを弁室内に
自由状態で収−容し、上端がバケツトフロートの下部開
口を通して内部に入る様に弁室の底部に導入管を立て、
その導入管をバケツトフロートの浮上着座時の中心より
も弁口の反対側に偏位せしめて配置したものである。Therefore, if the bucket float descends directly below the position it was in when it was levitating and seating, and then rises again from that position next time, the bucket float will float while being pulled sideways toward the valve opening, and its upper part will The portion of the spherical seal portion near the apex first contacts the lower end of the valve seat, and then rolls on the valve seat surface. As a result, when the valve port is closed, the bucket cart is in a state where the lower part with the opening is tilted away from the valve port, or in other words, the lower part is swung out to the opposite side of the valve port. This condition is not only unstable, but also causes internal steam to overflow, and the resulting vibrations cause the bucket float to separate from the valve seat, causing steam to leak. The present invention aims to eliminate such inconveniences by arranging a valve seat with an open valve opening protruding from the upper side of the valve chamber, and making the upper part a spherical shell so that its outer surface is in contact with the valve seat. A downward-opening bucket float, which serves as a seal for opening and closing the valve port, is housed in the valve chamber in a free state, and an introduction pipe is installed at the bottom of the valve chamber so that the upper end enters the interior through the lower opening of the bucket float. stand up,
The introduction pipe is arranged so as to be offset from the center of the bucket float when it is floating and sitting on the opposite side of the valve port.
作用は次ぎの通りである。The action is as follows.
バケツトフロートは弁座から離れて少しの距離降下する
と、上部球殼の内側の球面か導入管の上端に当たり、そ
して摺動しなが一ら、さらに沈下し、ついには球殼の頂
点が導入管の上端に乗つた状態で止まる。このとき導入
管はバケツトフロートの浮上着座時の中心よりも弁口の
反対側に偏位せしめて配置されているので、バケツトフ
ロートの降下位置も同様に偏位する。従つて、バケツト
フロートは再び浮上するときも、浮上着座時の真下から
ではなく、弁口の反対側に偏位した位置から浮上する。When the bucket float leaves the valve seat and descends a short distance, it hits either the inner spherical surface of the upper shell or the upper end of the introduction pipe, then slides and sinks further until the top of the shell hits the introduction pipe. It stops when it rests on the top of the tube. At this time, since the introduction pipe is arranged to be deviated from the center of the bucket float when it is floating and sitting on the opposite side of the valve port, the lowering position of the bucket float is also deviated in the same way. Therefore, when the bucket float floats again, it floats not from directly below when it floats and sits, but from a position deviated to the opposite side of the valve port.
そして、浮上の途中て弁口方向に横に引寄せられ、球面
シール部の所定の部位て弁座に当接する。このときバケ
ツトフロートは下部開口を下に向けた所望の状態となる
。この様に本発明では、バケツトフロートを所望の降下
位置に導くために、導入管の上端とバケツトフロートの
上部球殼との摺接を利用したものである。Then, in the middle of floating, it is pulled laterally toward the valve opening and comes into contact with the valve seat at a predetermined portion of the spherical seal portion. At this time, the bucket float is in the desired state with its lower opening facing downward. As described above, the present invention utilizes the sliding contact between the upper end of the introduction pipe and the upper shell of the bucket float in order to guide the bucket float to a desired lowering position.
その際に、従来必要であつた導入管を利用して、単にそ
の位置を偏位せしめるだけのものであるから、余分なコ
ストがかからない。また、バケツトフロートは降下位置
において導入管て内側から支持されるので、シール面を
含む外表面が弁室の内壁に当たつて傷付くことがない。
次に図示の実施例を詳細に説明する。At this time, the introduction tube, which was conventionally necessary, is used and the position is simply shifted, so no extra cost is incurred. Further, since the bucket float is supported from inside the introduction pipe in the lowered position, the outer surface including the sealing surface does not come into contact with the inner wall of the valve chamber and be damaged.
Next, the illustrated embodiment will be described in detail.
底部材１はほぼ板状て中央よりも図面上で左側に偏位し
て入口２が形成され、気密用ガスケット３を介して蓋部
材４がボルト５て取り付けられている。導入管６を通し
て入口２は弁室７に連通している。導入管６の周囲には
下向きバケツトフロート８が自由状態で配されている。
バケツトフロート８は半球殼の周縁が円筒状に延びた釣
り鐘形状である。弁座部材９で形成された弁口１０を通
して弁室７は出口１１に連通している。１２は気密保持
用の０−リングガスケット、１３は弁座部材９を所定位
置に取り付けるプラグ、１４はガスケットである。The bottom member 1 has a substantially plate-like shape, and has an inlet 2 that is offset to the left in the drawing from the center, and a lid member 4 is attached with bolts 5 through an airtight gasket 3. Inlet 2 communicates with valve chamber 7 through inlet pipe 6 . A downward bucket float 8 is arranged in a free state around the introduction pipe 6.
The bucket float 8 has a bell shape with a cylindrical periphery of a hemispherical shell. The valve chamber 7 communicates with an outlet 11 through a valve port 10 formed by a valve seat member 9 . 12 is an O-ring gasket for airtightness, 13 is a plug for attaching the valve seat member 9 to a predetermined position, and 14 is a gasket.
バケツトフロート８の上部外面は弁口１０を開閉する球
面状シール部１５を成す。１６は通気孔である。The upper outer surface of the bucket float 8 forms a spherical seal portion 15 that opens and closes the valve port 10. 16 is a ventilation hole.
バケツトフロート８は内部の蒸気量が少ないと実線で示
す降下位置にある。When the amount of steam inside the bucket float 8 is low, it is in the lowered position shown by the solid line.
そして、蒸気が入口２および導入管６を通つて流入し、
内部に蒸気量が多くなると浮上する。浮上の途中でバケ
ツトフロートは、弁口１０に向かう流体の流れに引寄せ
られて、斜め上方に向かつて変位し、二点鎖線１７で示
す状態で弁口１０を閉塞する。これは、バケツトフロー
ト１８が降下位置に於て二点鎖線１７で示す位置の真下
によりも弁口１０の反対側にあるからである。Steam then enters through the inlet 2 and the inlet pipe 6,
When the amount of steam inside increases, it floats to the surface. In the middle of floating, the bucket float is attracted by the flow of fluid toward the valve port 10 and is displaced diagonally upward, closing the valve port 10 in the state shown by the two-dot chain line 17. This is because the bucket float 18 is located on the opposite side of the valve port 10 from directly below the position indicated by the two-dot chain line 17 in the lowered position.
二点鎖線１７で示す位置の真下に降下して、次回にその
位置から再び浮上するならば、バケツトフロート８は弁
口方向に横に引寄せられながら浮上して、その上部の球
面シール部の頂点寄りの部位が先ず弁口１０を囲む弁座
の下端に当接し、その後弁座面上を転動することになる
。この結果、弁口１０を閉塞する時には、バケツトフロ
ート８は開口のある下部が弁口１０から遠ざかつた傾斜
した状態になる。入口２に復水が到来すると、バケツト
フロート８は内部に蒸気が供給されなくなるから、内部
の蒸気の凝縮等による減少と共に沈下し始める。少しの
距離沈下すると、上部球殼の内面が導入管６の頂部１９
に当たり、これに案内されてバケツトフロート８は実線
で示す位置に降下する。If the bucket float 8 descends directly below the position indicated by the two-dot chain line 17 and rises again from that position next time, the bucket float 8 floats while being pulled laterally toward the valve opening, and the spherical seal at the upper part of the bucket float 8 floats up. The portion near the apex first contacts the lower end of the valve seat surrounding the valve port 10, and then rolls on the valve seat surface. As a result, when the valve port 10 is closed, the bucket float 8 is in an inclined state in which the lower part where the opening is located moves away from the valve port 10. When condensate arrives at the inlet 2, steam is no longer supplied to the inside of the bucket float 8, so it begins to sink as the steam inside decreases due to condensation or the like. After sinking a short distance, the inner surface of the upper bulb shell will touch the top 19 of the introduction tube 6.
When this occurs, the bucket float 8 is guided by this and descends to the position shown by the solid line.
図は本発明の一実施例のバケツトフロート形スチームト
ラップの縦断面図である。
１は底部材、２は入口、４は蓋部材、６は導入管、７は
弁室、８は下向きバケツトフロート、１０は弁口、１１
は出口、１５は球面状シール部、１６は通気孔である。The figure is a longitudinal sectional view of a bucket-to-float type steam trap according to an embodiment of the present invention. 1 is a bottom member, 2 is an inlet, 4 is a lid member, 6 is an introduction pipe, 7 is a valve chamber, 8 is a downward bucket float, 10 is a valve port, 11
15 is an outlet, 15 is a spherical seal portion, and 16 is a ventilation hole.
Claims (1)
配置し、上部を球殻で作りその外表面を弁座に当接して
弁口を開閉するシール部とした下向き開放バケツトフロ
ートを弁室内に自由状態で収容し、上端がバケツトフロ
ートの下部開口を通して内部に入る様に弁室の底部に導
入管を立て、その導入管をバケツトフロートの浮上着座
時の中心よりも弁口の反対側に偏位せしめて配置したこ
とを特徴とするバケツトフロート形スチームトラップ。1. A downward-opening bucket in which a valve seat with an open valve port is arranged so as to protrude from the upper side of the valve chamber, and the upper part is made of a spherical shell and its outer surface is used as a sealing part to open and close the valve port by contacting the valve seat. Place the bucket float in a free state in the valve chamber, set an introduction pipe at the bottom of the valve chamber so that the upper end enters the interior through the lower opening of the bucket float, and insert the introduction pipe from the center of the bucket float when it is floating and seated. A bucket-to-float type steam trap characterized in that the valve is placed offset to the opposite side of the valve opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1772579A JPS6056959B2 (en) | 1979-02-17 | 1979-02-17 | Bucket float type steam trap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1772579A JPS6056959B2 (en) | 1979-02-17 | 1979-02-17 | Bucket float type steam trap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55109890A JPS55109890A (en) | 1980-08-23 |
| JPS6056959B2 true JPS6056959B2 (en) | 1985-12-12 |
Family
ID=11951714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1772579A Expired JPS6056959B2 (en) | 1979-02-17 | 1979-02-17 | Bucket float type steam trap |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6056959B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0419633Y2 (en) * | 1985-11-30 | 1992-05-06 | ||
| JPH054130Y2 (en) * | 1986-10-01 | 1993-02-01 | ||
| JP2631407B2 (en) * | 1989-10-03 | 1997-07-16 | 日立電子エンジニアリング株式会社 | Rotation stopper mechanism in disk cartridge transport device |
-
1979
- 1979-02-17 JP JP1772579A patent/JPS6056959B2/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0419633Y2 (en) * | 1985-11-30 | 1992-05-06 | ||
| JPH054130Y2 (en) * | 1986-10-01 | 1993-02-01 | ||
| JP2631407B2 (en) * | 1989-10-03 | 1997-07-16 | 日立電子エンジニアリング株式会社 | Rotation stopper mechanism in disk cartridge transport device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55109890A (en) | 1980-08-23 |
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