JP2714900B2 - Float valve - Google Patents
Float valveInfo
- Publication number
- JP2714900B2 JP2714900B2 JP29629291A JP29629291A JP2714900B2 JP 2714900 B2 JP2714900 B2 JP 2714900B2 JP 29629291 A JP29629291 A JP 29629291A JP 29629291 A JP29629291 A JP 29629291A JP 2714900 B2 JP2714900 B2 JP 2714900B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- float
- seat member
- port
- chamber
- 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 - Lifetime
Links
Landscapes
- Float Valves (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は気体と液体の比重差を利
用して、開放又は密閉のフロ―トで弁手段を駆動し、気
液混合系から一方の流体を選択的に自動的に排出するフ
ロ―ト弁に関する。このフロ―ト弁は気体と液体が混在
する系から気体又は液体の一方を選択的に自動的に排出
するときに用いる。蒸気配管系に発生する復水を自動的
に排出するスチ―ムトラップ、圧縮空気配管系に発生す
る凝縮水を自動的に排出するエア―トラップ、水配管系
に混在する空気を自動的に排出するエア―ベント等であ
る。フロ―ト弁は入口と出口を有する弁ケ―シング内に
弁室を形成し、弁室と出口を連通する弁口を開けた弁座
部材を弁ケ―シングに取り付け、弁室内に配置したフロ
―トで弁手段を駆動して弁口を開閉するものである。弁
口は通常運転時の最高使用圧力において開閉できるよう
に設計されるので、弁口径は小さく、通気あるいは送水
初めの多量の復水や凝縮水あるいは空気を短時間に排出
することができない不都合があった。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention utilizes a difference in specific gravity between a gas and a liquid to drive a valve means in an open or closed float to selectively and automatically select one fluid from a gas-liquid mixture system. Regarding the float valve to discharge. This float valve is used for selectively and automatically discharging either gas or liquid from a system in which gas and liquid are mixed. A steam trap for automatically discharging condensate generated in the steam piping system, an air trap for automatically discharging condensed water generated in the compressed air piping system, and automatically discharging air mixed in the water piping system Such as air vents. In the float valve, a valve chamber is formed in a valve casing having an inlet and an outlet, and a valve seat member having a valve opening communicating with the valve chamber and the outlet is attached to the valve casing and disposed in the valve chamber. The valve means is driven by the float to open and close the valve port. The valve port is designed so that it can be opened and closed at the maximum operating pressure during normal operation. there were.
【０００２】[0002]
【従来の技術】そこで、従来は実開平２−４１７９８号
公報に示されているような技術が用いられた。これは、
フロ―ト弁の上流配管と下流配管を連通するバイパス配
管を設け、バイパス配管に電気操作弁を配置し、フロ―
ト弁のフロ―トの浮沈を検出する手段を設け、浮沈検出
手段からの指令で、電気操作弁の開閉を制御するように
したものである。フロ―トが浮上すると電気操作弁を開
弁せしめて復水を排出し、フロ―トが降下すると電気操
作弁を閉弁せしめる。2. Description of the Related Art Conventionally, a technique as disclosed in Japanese Utility Model Laid-Open Publication No. 2-41798 has been used. this is,
A bypass pipe that connects the upstream pipe and the downstream pipe of the float valve is provided, and an electrically operated valve is placed in the bypass pipe.
A means for detecting the float of the float of the G valve is provided, and the opening and closing of the electrically operated valve is controlled by a command from the float and sink detecting means. When the float rises, the electric valve is opened to discharge the condensate water, and when the float descends, the electric valve is closed.
【０００３】[0003]
【発明が解決しようとする課題】上記のものでは、フロ
―ト弁とは別に別途バイパス配管を設けるために大型に
なってしまう問題があった。本発明の技術的課題は、従
って、バイパス機能を有する小型のフロ―ト弁を得るこ
とである。However, in the above-described apparatus, there is a problem that the size becomes large because a bypass pipe is provided separately from the float valve. The technical problem of the present invention is therefore to obtain a small float valve having a bypass function.
【０００４】[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、入口と出口を
有する弁ケ―シング内に弁室を形成し、弁室と出口を連
通する弁口を開けた弁座部材を弁ケ―シングに取り付
け、弁室内に配置したフロ―トで弁手段を駆動して弁口
を開閉するフロ―ト弁において、弁座部材を球形に形成
し、球形弁座部材にバイパス弁口と弁手段で開閉される
弁口を開け、球形弁座部材をバイパス弁口が弁室に対面
する位置と弁手段で開閉される弁口が弁室に対面する位
置とに回転せしめる駆動手段を球形弁座部材に連結し、
フロ―トの浮沈を検出する浮沈検出手段を設け、浮沈検
出手段の信号に基づいて駆動手段を操作せしめるもので
ある。SUMMARY OF THE INVENTION In order to solve the above technical problem, the technical means of the present invention is to form a valve chamber in a valve casing having an inlet and an outlet, and to provide a valve chamber and an outlet. A valve seat member having an open valve port is connected to a valve casing, and a valve disposed in a valve chamber drives a valve means to open and close the valve port. The spherical valve seat member is provided with a bypass valve port and a valve port opened and closed by the valve means, and the spherical valve seat member is opened and closed by the valve valve at the position where the bypass valve port faces the valve chamber and the valve port. Connecting the driving means for rotating to a position facing the chamber to the spherical valve seat member,
A floating / sink detecting means for detecting the floating of the float is provided, and the driving means is operated based on a signal from the floating / sink detecting means.
【０００５】[0005]
【作用】上記の技術的手段の作用は下記の通りである。
浮沈検出手段によってフロ―トの浮沈が検出され、駆動
手段が操作せしめられる。これにより球形弁座部材が回
転せしめられ、弁口が弁室に面してフロ―トで開閉され
る位置と、バイパス弁口が弁室に面する位置とに切換え
られる。バイパス弁口を弁室に対面させることにより排
出すべき流体を短時間に素早く排出する。 弁手段で開
閉される弁口とバイパス弁口を弁座部材に開けたので、
部材の共有化が計れ、別途バイパス配管を形成する必要
がなくなり、バイパス機能を有する小型のフロ―ト弁を
得ることができる。The operation of the above technical means is as follows.
Floating and sinking of the float is detected by the floating and sink detecting means, and the driving means is operated. As a result, the spherical valve seat member is rotated, and the valve port is switched between a position where the valve port faces the valve chamber and is opened and closed by a float, and a position where the bypass valve port faces the valve chamber. The fluid to be discharged is quickly and quickly discharged by making the bypass valve port face the valve chamber. Since the valve port and bypass valve port opened and closed by the valve means are opened in the valve seat member,
The members can be shared, and there is no need to separately form a bypass pipe, and a small float valve having a bypass function can be obtained.
【０００６】[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ないし図４参照）。本実施例は密閉フリ―
フロ―ト型スチ―ムトラップに適用したものである。本
体１に蓋２を締結し、内部に弁室４を有する弁ケ―シン
グを形成する。本体１と蓋２の間にはガスケット５を介
在せしめて両者の気密を保つ。本体１の上部に入口６と
出口７を同一軸上に形成する。入口６と出口７にはそれ
ぞれ配管接続用のめねじを形成する。出口７は弁室４の
下部側壁に開けた弁座部材取付口８と排出通路９を通し
て弁室４に連通している。弁座部材取付口８に環状段部
を形成して環状弁座１０を配置する。環状弁座１０に当
てて球形弁座部材１１を配置し、プラグ１２を本体１に
ねじ結合して保持する。プラグ１２と本体１との間の気
密をガスケット１３で保つ。プラグ１２の先端にも環状
段部を形成して球形弁座部材１１との間に環状弁座１４
を配置する。球形弁座部材１１に弁口１５とバイパス弁
口１６と排出口１７を開ける。弁口１５は下記のフロ―
ト１８によって開閉できる大きさであり、フロ―ト１８
の降下した閉弁位置で閉じられるように、フロ―ト１８
の降下位置での球心を通る軸上に開けている。バイパス
弁口１６は排出すべき流体を短時間に素早く排出できる
ように大きな開口面積に形成する。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment showing a specific example of the above technical means will be described (see FIGS. 1 to 4). This embodiment uses a closed free
This is applied to a float type steam trap. A lid 2 is fastened to the main body 1 to form a valve casing having a valve chamber 4 therein. A gasket 5 is interposed between the main body 1 and the lid 2 to keep the two airtight. An inlet 6 and an outlet 7 are formed on the same axis in the upper part of the main body 1. Female threads for pipe connection are formed at the inlet 6 and the outlet 7, respectively. The outlet 7 communicates with the valve chamber 4 through a valve seat member mounting port 8 opened in a lower side wall of the valve chamber 4 and a discharge passage 9. An annular step is formed in the valve seat member mounting opening 8 and the annular valve seat 10 is arranged. The spherical valve seat member 11 is arranged against the annular valve seat 10, and the plug 12 is screwed and held to the main body 1. Airtightness between the plug 12 and the main body 1 is maintained by the gasket 13. An annular step is also formed at the tip of the plug 12 so that the annular valve seat 14 is located between the plug 12 and the spherical valve seat member 11.
Place. The valve port 15, the bypass valve port 16, and the discharge port 17 are opened in the spherical valve seat member 11. Valve port 15 has the following flow
Size that can be opened and closed by the
Float 18 so that it can be closed at the lowered valve closing position.
Is open on the axis passing through the ball center at the descent position. The bypass valve port 16 is formed with a large opening area so that the fluid to be discharged can be quickly and quickly discharged.
【０００７】弁室４内に中空の球形フロ―ト１８を自由
状態で配置する。フロ―ト１８はその外表面が直接球形
弁座部材１１に離着座し弁口１５を開閉する。弁室４の
底壁にフロ―ト１８を閉弁位置で保持するフロ―ト座１
９を形成する。蓋２の上に近接スイッチ２０を配置す
る。近接スイッチ２０はケ―ス２１内に収容したコント
ロ―ラ２２と蓋２にねじ結合した取付部材２３にねじ結
合したセンサ―２４とからなる。センサ―２４の先端は
弁室４内に突出し、フロ―ト１８の上方に位置してい
る。[0007] A hollow spherical float 18 is disposed in the valve chamber 4 in a free state. The outer surface of the float 18 is directly attached to and detached from the spherical valve seat member 11 to open and close the valve port 15. Float seat 1 for holding the float 18 in the closed position on the bottom wall of the valve chamber 4
9 is formed. The proximity switch 20 is arranged on the lid 2. The proximity switch 20 includes a controller 22 housed in a case 21 and a sensor 24 screwed to a mounting member 23 screwed to the lid 2. The tip of the sensor 24 projects into the valve chamber 4 and is located above the float 18.
【０００８】球形弁座部材１１に溝２５を形成し、本体
１を貫通して配置した弁軸２６の下端を嵌合せしめる。
弁軸２６のフランジ部の上面にシ―ル部材２７を配置
し、上面からホルダ―２８で締付けてグランド部の気密
を保つ。弁軸２６の上端に駆動手段としてのモ―タ２９
の出力軸３０を連結部材３１を介して連結する。駆動手
段としては上記のモ―タの他に、例えば圧縮空気で作動
するエア―アクチュエ―タや、油圧アクチュエ―タ等で
あってもよい。連結手段３１にカム３２を設け、カム３
２と協働して切換を行う二つのマイクロスイッチ３３，
３４を配置する。第３図に示すように、カム３２には１
８０度隔てた位置に凹部３５，３６を設ける。一方マイ
クロスイッチ３３，３４は互いに９０度隔ててカム３２
と作動的に協働するように配置する。結線図は第４図に
示す通りであり、モ―タ２９の駆動用電源３７を近接ス
イッチ２０により、回路Ａあるいは回路Ｂに交互に連結
する。[0010] A groove 25 is formed in the spherical valve seat member 11, and the lower end of a valve shaft 26 disposed through the main body 1 is fitted.
A seal member 27 is arranged on the upper surface of the flange portion of the valve shaft 26, and is tightened by a holder 28 from the upper surface to keep the gland portion airtight. A motor 29 as a driving means is provided on the upper end of the valve shaft 26.
Are connected via a connecting member 31. The drive means may be, for example, an air-actuator or a hydraulic actuator that operates with compressed air, in addition to the motor described above. The connecting means 31 is provided with a cam 32,
Two microswitches 33, which switch in cooperation with 2,
34 is arranged. As shown in FIG.
Concave portions 35 and 36 are provided at positions separated by 80 degrees. On the other hand, the micro switches 33 and 34 are separated from the cam 32 by 90 degrees.
And operatively cooperate with. The wiring diagram is as shown in FIG. 4. The driving power supply 37 of the motor 29 is alternately connected to the circuit A or the circuit B by the proximity switch 20.
【０００９】上記フロ―ト弁の作動は下記の通りであ
る。先ずフロ―ト１８の降下時には、球形弁座部材１１
の弁口１５を弁室４に対面させ、フロ―ト１８で開閉さ
れる位置にセットする。入口６からの復水の流入と共に
弁室４内の液位が上昇し、フロ―ト１８が浮上する。フ
ロ―ト１８が近接スイッチ２０のセンサ―２４に接近す
ると、近接スイッチ２０は電源３７を回路Ａから回路Ｂ
に切換える。電源３７が回路Ｂに結合されると、モ―タ
２９が回転し、出力軸３０、連結部材３１、弁軸２６を
介して球形弁座部材１１を回転せしめ、バイパス弁口１
６が弁室４に対面する位置まで駆動する。そして、カム
３２の凹部３５がマイクロスイッチ３４と係合し、マイ
クロスイッチがＯＦＦの状態になり、回路Ｂは開き、モ
―タ２９への電力供給が遮断されてモ―タ２９が停止す
る。弁室４の復水はバイパス弁口１６を通って、短時間
に素早く排出される。復水の排出によって、弁室４の液
位が降下すると、フロ―ト１８が降下する。フロ―ト１
８がセンサ―２４から遠ざかると、近接スイッチ２０は
再び電源３７を回路Ａに結合し、モ―タ２９が回転し、
球形弁座部材１１を駆動し、弁口１５が弁室４に対面し
た位置で止まる。そして、フロ―ト１８が弁口１５に着
座して閉弁する。このような作動を繰り返して復水の排
出を行う。The operation of the float valve is as follows. First, when the float 18 is lowered, the spherical valve seat member 11
The valve port 15 faces the valve chamber 4 and is set at a position where it can be opened and closed by the float 18. With the inflow of condensate from the inlet 6, the liquid level in the valve chamber 4 rises, and the float 18 floats. When the float 18 approaches the sensor 24 of the proximity switch 20, the proximity switch 20 switches the power supply 37 from the circuit A to the circuit B.
Switch to. When the power supply 37 is connected to the circuit B, the motor 29 rotates, causing the spherical valve seat member 11 to rotate via the output shaft 30, the connecting member 31, and the valve shaft 26, and the bypass valve port 1
6 drives to a position facing the valve chamber 4. Then, the concave portion 35 of the cam 32 is engaged with the micro switch 34, the micro switch is turned off, the circuit B is opened, the power supply to the motor 29 is cut off, and the motor 29 stops. The condensate in the valve chamber 4 passes through the bypass valve port 16 and is quickly discharged in a short time. When the liquid level in the valve chamber 4 drops due to the discharge of the condensate water, the float 18 drops. Float 1
When 8 moves away from sensor 24, proximity switch 20 again couples power supply 37 to circuit A, causing motor 29 to rotate,
The spherical valve seat member 11 is driven, and stops at the position where the valve port 15 faces the valve chamber 4. Then, the float 18 sits on the valve port 15 and closes the valve. This operation is repeated to discharge the condensate.
【００１０】[0010]
【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、バイパス弁口とフロ―トで
開閉される弁口を球形弁座部材に形成したので、バイパ
ス機能を有する小型のフロ―ト弁を得ることができる。The present invention has the following specific effects. As described above, according to the present invention, since the bypass valve port and the valve port opened and closed by the float are formed in the spherical valve seat member, a small float valve having a bypass function can be obtained.
【図１】本発明の実施例のフロ―ト弁の断面図である。FIG. 1 is a sectional view of a float valve according to an embodiment of the present invention.
【図２】図１のＣ−Ｃ線断面図である。FIG. 2 is a sectional view taken along line CC of FIG.
【図３】図２のＤ−Ｄ線断面図である。FIG. 3 is a sectional view taken along line DD of FIG. 2;
【図４】本発明の実施例のフロ―ト弁の結線図である。FIG. 4 is a connection diagram of a float valve according to the embodiment of the present invention.
４ 弁室 ６ 入口 ７ 出口 １１ 球形弁座部材 １５ 弁口 １６ バイパス弁口 １８ フロ―ト ２０ 近接スイッチ ２６ 弁軸 ２９ モ―タ ３０ 出力軸 ３２ カム ３３，３４ マイクロスイッチ 4 Valve Chamber 6 Inlet 7 Outlet 11 Spherical Valve Seat Member 15 Valve Port 16 Bypass Valve Port 18 Float 20 Proximity Switch 26 Valve Shaft 29 Motor 30 Output Shaft 32 Cam 33,34 Micro Switch
Claims (1)
室を形成し、弁室と出口を連通する弁口を開けた弁座部
材を弁ケ―シングに取り付け、弁室内に配置したフロ―
トで弁手段を駆動して弁口を開閉するフロ―ト弁におい
て、弁座部材を球形に形成し、球形弁座部材にバイパス
弁口と弁手段で開閉される弁口を開け、球形弁座部材を
バイパス弁口が弁室に対面する位置と弁手段で開閉され
る弁口が弁室に対面する位置とに回転せしめる駆動手段
を球形弁座部材に連結し、フロ―トの浮沈を検出する浮
沈検出手段を設け、浮沈検出手段の信号に基づいて駆動
手段を操作せしめるようにしたフロ―ト弁。1. A valve chamber is formed in a valve casing having an inlet and an outlet, and a valve seat member having an open valve port connecting the valve chamber and the outlet is attached to the valve casing and disposed in the valve chamber. Flow
In a float valve that opens and closes a valve port by driving valve means with a valve, a spherical valve seat member is formed, and a spherical valve seat member is opened with a bypass valve port and a valve port opened and closed by the valve means. A drive means for rotating the seat member between a position where the bypass valve port faces the valve chamber and a position where the valve port opened and closed by the valve means faces the valve chamber is connected to the spherical valve seat member, and floating and sinking of the float is performed. A float valve provided with a floating / sink detecting means for detecting and operating a driving means based on a signal from the floating / sink detecting means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29629291A JP2714900B2 (en) | 1991-10-15 | 1991-10-15 | Float valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29629291A JP2714900B2 (en) | 1991-10-15 | 1991-10-15 | Float valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05106789A JPH05106789A (en) | 1993-04-27 |
| JP2714900B2 true JP2714900B2 (en) | 1998-02-16 |
Family
ID=17831671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29629291A Expired - Lifetime JP2714900B2 (en) | 1991-10-15 | 1991-10-15 | Float valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2714900B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4971111B2 (en) * | 2007-11-15 | 2012-07-11 | 株式会社テイエルブイ | Float type steam trap |
-
1991
- 1991-10-15 JP JP29629291A patent/JP2714900B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05106789A (en) | 1993-04-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2714900B2 (en) | Float valve | |
| JP2711606B2 (en) | Float valve | |
| JP2714892B2 (en) | Float valve | |
| JP2714896B2 (en) | Float valve | |
| JP2714889B2 (en) | Float valve | |
| JP2714891B2 (en) | Float valve | |
| JP2714890B2 (en) | Float valve | |
| JP3365863B2 (en) | Auto drain device | |
| JP2562905Y2 (en) | Pilot type steam trap | |
| JP2709545B2 (en) | Orifice strap | |
| JPH1182885A (en) | Float type drain trap | |
| JPH082559Y2 (en) | Free float type drain trap | |
| JPH0454398Y2 (en) | ||
| JP4166513B2 (en) | Float type drain trap | |
| JP2001050490A (en) | Float type drain trap | |
| JPH07113495A (en) | Float type steam trap | |
| JP2714895B2 (en) | Float valve | |
| JP4166514B2 (en) | Float type drain trap | |
| JP2561945Y2 (en) | Drain trap | |
| JP2000234674A (en) | Exhaust valve | |
| JP2557351Y2 (en) | Trap device | |
| JPH0629600Y2 (en) | Float valve | |
| JPH0637273Y2 (en) | Pilot steam trap | |
| JPH0637275Y2 (en) | Pilot steam trap | |
| JPH094793A (en) | Free float type steam trap |