JP2847154B2 - Disc type steam trap - Google Patents
Disc type steam trapInfo
- Publication number
- JP2847154B2 JP2847154B2 JP8130493A JP8130493A JP2847154B2 JP 2847154 B2 JP2847154 B2 JP 2847154B2 JP 8130493 A JP8130493 A JP 8130493A JP 8130493 A JP8130493 A JP 8130493A JP 2847154 B2 JP2847154 B2 JP 2847154B2
- Authority
- JP
- Japan
- Prior art keywords
- ring
- annular plate
- valve
- bimetal
- steam trap
- 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 - Fee Related
Links
Landscapes
- Temperature-Responsive Valves (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、変圧室すなわち熱力学
的蒸気室の圧力変化に応じて弁ディスクが開閉すること
により、蒸気配管系に発生する復水を自動的に排出する
ディスク式スチ―ムトラップに関し、特に、バイメタル
を用いてエアバインディングを解消できるようにしたも
のに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk type steel for automatically discharging condensate generated in a steam piping system by opening and closing a valve disk in response to a pressure change in a variable pressure chamber, that is, a thermodynamic steam chamber. -The present invention relates to a mud trap, and more particularly to a device capable of eliminating air binding by using a bimetal.
【０００２】ディスク式スチ―ムトラップは内外輪弁座
からなる弁座面に対して離着座する弁ディスクを、弁デ
ィスクの背後に形成した変圧室の圧力変化によって自力
的に制御して開閉弁させ復水を自動的に排出するもので
ある。このものにおいては、始動時に空気が流入してき
ても、蒸気の場合と同様に瞬時に閉弁してしまい、一旦
閉弁すると空気は蒸気と異なり凝縮作用を起こさないの
で、その後は開弁できない、いわゆるエアバインディン
グが起こる。そこで、従来からバイメタルを用いてこの
エアバインディングを解消することが行なわれている。
これは、バイメタルの温度変化による湾曲作用を利用し
て、低温時に弁ディスクを強制的に持上げて開弁させ、
高温時に弁ディスクに干渉しない様にしたものである。[0002] A disk type steam trap automatically opens and closes a valve disk which is detachably seated on a valve seat surface comprising inner and outer ring valve seats by a pressure change in a variable pressure chamber formed behind the valve disk. Condensate is automatically discharged. In this device, even if air flows in at the time of starting, the valve closes instantly as in the case of steam, and once the valve is closed, the air does not cause a condensation action unlike steam, so that it cannot be opened thereafter. So-called air binding occurs. Therefore, conventionally, this air binding is eliminated by using a bimetal.
This uses the bending effect due to the temperature change of the bimetal to forcibly lift and open the valve disc at low temperatures.
At high temperatures, it does not interfere with the valve disc.
【０００３】[0003]
【従来の技術】この一例が特公昭５０−８８０９号公報
に示されている。これは、外輪弁座の外周に形成した円
錐状の斜面部に有端のバイメタル環を配置すると共に、
弁ディスクとバイメタル環の間に環状板を配置し、斜面
部と温度変化によるバイメタル環の拡開縮閉作用との協
働によってエアバインディングを解消するものである。
すなわち、バイメタル環は低温時に斜面部に沿って上動
し、環状板を介して弁ディスクを持上げて内外輪弁座か
ら離座開弁させるもので、高温時には斜面部に沿って下
動し、弁ディスクに干渉しなくなる。2. Description of the Related Art An example of this is disclosed in Japanese Patent Publication No. 50-8809. This is done by arranging a bimetal ring with ends on a conical slope formed on the outer periphery of the outer ring valve seat,
An annular plate is arranged between the valve disk and the bimetallic ring, and the air binding is eliminated by cooperation between the slope portion and the expansion and contraction of the bimetallic ring due to temperature change.
In other words, the bimetallic ring moves up along the slope at low temperatures, lifts the valve disk through the annular plate and opens the valve from the inner and outer ring valve seats, and moves down along the slope at high temperatures, No interference with valve disc.
【０００４】[0004]
【発明が解決しようとする課題】上記のものでは、斜面
部に摺接するバイメタル環の下部が摩耗したり、環状板
やバイメタル環が破損したりする問題がある。これは、
弁ディスクの離着座時の衝撃及び排出流体による流動抵
抗によって、高温時に環状板が上下に激しく動揺するた
めに、弁ディスクに叩かれ、また環状板を介してバイメ
タル環が叩かれるためである。従って本発明の技術的課
題は、高温時に環状板が弁ディスクに叩かれないように
することである。However, in the above-mentioned structure, there is a problem that the lower portion of the bimetallic ring which is in sliding contact with the slope portion is worn, and the annular plate and the bimetallic ring are damaged. this is,
This is because the annular plate vibrates up and down violently at high temperatures due to the impact at the time of desorption and seating of the valve disk and the flow resistance due to the discharged fluid. The technical problem of the invention is therefore to prevent the annular plate from hitting the valve disc at high temperatures.
【０００５】[0005]
【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、内外輪弁座と
蓋部材とにより形成する変圧室内に弁ディスクを配置
し、外輪弁座の外周に形成した円錐状の斜面部に有端の
バイメタル環を配置すると共に、弁ディスクとバイメタ
ル環の間に環状板を配置し、斜面部と温度変化によるバ
イメタル環の拡開縮閉作用との協働によって低温時に環
状板を介して弁ディスクを内外輪弁座から離座せしめて
エアバインディングを解消するディスク式スチ―ムトラ
ップにおいて、環状板の外側に有端の保持用バイメタル
環を配置し、保持用バイメタル環の拡開縮閉作用によっ
て高温時に環状板を保持するようにしたことを特徴とす
るものである。Means for Solving the Problems The technical means of the present invention taken to solve the above technical problem is to dispose a valve disk in a variable pressure chamber formed by inner and outer ring valve seats and a lid member, A bimetallic ring with ends is placed on the conical slope formed on the outer periphery of the valve seat, and an annular plate is placed between the valve disk and the bimetallic ring. In a disk-type steam trap that removes air binding by separating the valve disk from the inner and outer ring valve seats via the annular plate at low temperatures by cooperation with the action, a bimetal ring with an end is provided outside the annular plate. The annular plate is arranged at a high temperature by an expanding and contracting action of the holding bimetal ring.
【０００６】[0006]
【作用】上記の技術的手段の作用は下記の通りである。
エアバインディングの解消は、バイメタル環が低温時に
斜面部に沿って上動し、環状板を介して弁ディスクを持
上げて内外輪弁座から離座開弁させることによって行な
われる。バイメタル環は高温時に斜面部を下動し、これ
に伴って環状板も下動し、弁ディスクに干渉しなくな
る。この高温時に於て、下動した環状板は保持用バイメ
タル環に保持される。従って、高温時に環状板は上下動
することがなく、弁ディスクに叩かれることがないの
で、バイメタル環の摩耗や環状板及びバイメタル環の破
損が生じることがない。The operation of the above technical means is as follows.
The elimination of the air binding is performed by moving the bimetal ring upward along the slope at a low temperature, lifting the valve disc through the annular plate, and opening and closing the valve from the inner and outer ring valve seats. The bimetal ring moves down the slope at high temperatures, and the annular plate also moves down accordingly, so that it does not interfere with the valve disk. At this high temperature, the lowered annular plate is held by the holding bimetal ring. Therefore, the annular plate does not move up and down at high temperatures and is not hit by the valve disc, so that the abrasion of the bimetal ring and the damage of the annular plate and the bimetal ring do not occur.
【０００７】[0007]
【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と図２参照）。本体１に同一軸上に入口２
と出口３を形成し、この入口２及び出口３と連通する変
圧室４を蓋部材５と本体１とで形成する。入口２と出口
３の変圧室４側開口端に内輪弁座６と外輪弁座７を同心
円状で同一平面に形成してその間に環状溝８を形成す
る。内外輪弁座６，７に離着座する円板状の弁ディスク
９を変圧室４内に配置する。入口２と変圧室４は内輪弁
座６に形成した入口通路１０を介して連通し、変圧室４
と出口３は環状溝８の一部から形成した出口通路１１を
介して連通する。蓋部材４の外側にキャップ１２を被せ
て空気保温室１３を形成する。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment showing a specific example of the above technical means will be described (see FIGS. 1 and 2). Entrance 2 on the same axis as body 1
And an outlet 3, and a transforming chamber 4 communicating with the inlet 2 and the outlet 3 is formed by the lid member 5 and the main body 1. An inner ring valve seat 6 and an outer ring valve seat 7 are formed concentrically on the same plane at the opening ends of the inlet 2 and the outlet 3 on the side of the transformer chamber 4, and an annular groove 8 is formed therebetween. Disc-shaped valve discs 9 which are seated and demounted on the inner and outer ring valve seats 6 and 7 are arranged in the variable pressure chamber 4. The inlet 2 communicates with the variable pressure chamber 4 through an inlet passage 10 formed in the inner ring valve seat 6.
And the outlet 3 communicate with each other through an outlet passage 11 formed from a part of the annular groove 8. The cap 12 is put on the outside of the lid member 4 to form the air-insulating chamber 13.
【０００８】外輪弁座７の外周に円錐状の斜面部１４を
形成し、有端のバイメタル環１５を配置すると共に、バ
イメタル環１５と弁ディスク９の間に環状板１６を配置
する。環状板１６の外側に対面して、蓋部材５に環状の
溝１７を形成し、有端の保持用バイメタル環１８を配置
する。A conical slope portion 14 is formed on the outer periphery of the outer ring valve seat 7, a bimetal ring 15 having ends is arranged, and an annular plate 16 is arranged between the bimetal ring 15 and the valve disk 9. An annular groove 17 is formed in the lid member 5 so as to face the outside of the annular plate 16, and an end holding bimetal ring 18 is disposed.
【０００９】上記実施例の作動を説明する。トラップ本
体が低温の場合、バイメタル環１５は図１に示すように
縮閉して斜面部１４を上動しており、環状板１６を介し
て弁ディスク９を持上げて離座開弁状態にし、低温の復
水や空気を排出する。このとき保持用バイメタル環１８
は拡開しており、環状板１６に関与しない。高温復水が
流入してくると、図２に示すようにバイメタル環１５は
拡開して斜面部１４を下動し、これに伴って環状板１６
も下動する。そして、保持用バイメタル環１８が縮閉し
て上下動しないように環状板１６を保持する。以後周知
のディスク式スチ―ムトラップの作動原理に基づいて蒸
気は逃さず復水のみを自動的に排出する。The operation of the above embodiment will be described. When the temperature of the trap body is low, the bimetal ring 15 is closed and moved upward on the slope portion 14 as shown in FIG. Discharge cold condensate and air. At this time, the holding bimetal ring 18
Are expanded and do not participate in the annular plate 16. When the high-temperature condensate flows in, the bimetallic ring 15 expands and moves down the slope 14 as shown in FIG.
Moves down. Then, the annular plate 16 is held so that the holding bimetal ring 18 is closed and does not move up and down. Thereafter, based on the well-known principle of operation of the disk type steam trap, steam is not released and only condensate is automatically discharged.
【００１０】[0010]
【発明の効果】上記のように本発明によれば、バイメタ
ル環の摩耗や環状板及びバイメタル環の破損が生じるこ
とがないので、長期間に渡って良好なエアバインディン
グ解消機能を果すことができる。As described above, according to the present invention, abrasion of the bimetallic ring and breakage of the annular plate and the bimetallic ring do not occur, so that a good air binding eliminating function can be achieved for a long period of time. .
【図１】本発明のディスク式スチ―ムトラップの実施例
の低温時の作動状態を示す断面図である。FIG. 1 is a cross-sectional view showing an operation state at a low temperature of an embodiment of a disk type steam trap of the present invention.
【図２】本発明のディスク式スチ―ムトラップの実施例
の高温時の作動状態を示す要部のみの断面図である。FIG. 2 is a sectional view of only a main part showing an operating state at a high temperature of the embodiment of the disk type steam trap of the present invention.
１ 本体 ２ 入口 ３ 出口 ４ 変圧室 ５ 蓋部材 ６ 内輪弁座 ７ 外輪弁座 ９ 弁ディスク １４ 斜面部 １５ バイメタル環 １６ 環状板 １８ 保持用バイメタル環 DESCRIPTION OF SYMBOLS 1 Main body 2 Inlet 3 Outlet 4 Transformation chamber 5 Lid member 6 Inner ring valve seat 7 Outer ring valve seat 9 Valve disk 14 Slope part 15 Bimetal ring 16 Ring plate 18 Bimetal ring for holding
Claims (1)
圧室内に弁ディスクを配置し、外輪弁座の外周に形成し
た円錐状の斜面部に有端のバイメタル環を配置すると共
に、弁ディスクとバイメタル環の間に環状板を配置し、
斜面部と温度変化によるバイメタル環の拡開縮閉作用と
の協働によって低温時に環状板を介して弁ディスクを内
外輪弁座から離座せしめてエアバインディングを解消す
るディスク式スチ―ムトラップにおいて、環状板の外側
に有端の保持用バイメタル環を配置し、保持用バイメタ
ル環の拡開縮閉作用によって高温時に環状板を保持する
ようにしたことを特徴とするディスク式スチ―ムトラッ
プ。1. A valve disc is disposed in a variable pressure chamber formed by an inner and outer ring valve seat and a lid member, and a bimetal ring having ends is disposed on a conical slope formed on an outer periphery of the outer ring valve seat. Place an annular plate between the disc and the bimetallic ring,
In a disk-type steam trap that releases the valve binding from the inner and outer ring valve seats through the annular plate at low temperature by cooperating with the slope portion and the expansion and contraction action of the bimetal ring due to temperature change, the air binding is eliminated. A disk type steam trap, wherein an end holding bimetal ring is arranged outside the annular plate, and the annular plate is held at a high temperature by an expanding / contracting action of the holding bimetal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8130493A JP2847154B2 (en) | 1993-03-15 | 1993-03-15 | Disc type steam trap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8130493A JP2847154B2 (en) | 1993-03-15 | 1993-03-15 | Disc type steam trap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06265095A JPH06265095A (en) | 1994-09-20 |
| JP2847154B2 true JP2847154B2 (en) | 1999-01-13 |
Family
ID=13742658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8130493A Expired - Fee Related JP2847154B2 (en) | 1993-03-15 | 1993-03-15 | Disc type steam trap |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2847154B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6295162B1 (en) * | 1997-01-20 | 2001-09-25 | Dai Nippon Printing Co., Ltd. | Rear projection screen with optical sheet having irregularities caused by diffusing material smoothed with a transparent control layer |
-
1993
- 1993-03-15 JP JP8130493A patent/JP2847154B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06265095A (en) | 1994-09-20 |
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