JP2741313B2 - Disc type steam trap - Google Patents
Disc type steam trapInfo
- Publication number
- JP2741313B2 JP2741313B2 JP21199992A JP21199992A JP2741313B2 JP 2741313 B2 JP2741313 B2 JP 2741313B2 JP 21199992 A JP21199992 A JP 21199992A JP 21199992 A JP21199992 A JP 21199992A JP 2741313 B2 JP2741313 B2 JP 2741313B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- outlet
- inlet
- valve seat
- outer ring
- 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
- Details Of Valves (AREA)
- Lift Valve (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は蒸気配管系に発生する復
水を自動的に排出するスチ―ムトラップに関し、特に、
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
ィスクが開閉するディスク式スチ―ムトラップに関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steam trap for automatically discharging condensate generated in a steam piping system.
The present invention relates to a disk type steam trap that opens and closes a valve disk in response to a pressure change in a variable pressure chamber, that is, a thermodynamic steam chamber.
【０００２】[0002]
【従来の技術】従来のディスク式スチ―ムトラップは、
本体と蓋体とで内部に変圧室を形成し、入口及び出口の
変圧室側開口端に内外輪弁座からなる弁座面を形成する
と共に内外輪弁座の間に環状溝を形成し、環状溝から単
一の流出孔を開けて変圧室を出口に連通し、変圧室に弁
ディスクを配置したもので、変圧室の圧力変化によって
弁ディスクを自力的に制御して弁座面に離着座させるこ
とにより、復水を自動的に排出するものである。2. Description of the Related Art Conventional disk type steam traps are:
A transformation chamber is formed inside the main body and the lid, and a valve seat surface including inner and outer ring valve seats is formed at the transformation chamber side opening ends of the inlet and the outlet, and an annular groove is formed between the inner and outer ring valve seats, A single outlet hole is opened from the annular groove to connect the variable pressure chamber to the outlet, and a valve disk is arranged in the variable pressure chamber.The valve disk is controlled automatically by the pressure change in the variable pressure chamber and separated from the valve seat surface. The condensate is automatically discharged by being seated.
【０００３】[0003]
【発明が解決しようとする課題】上記従来のディスク式
スチ―ムトラップは、弁ディスクが内外輪弁座の弁座面
に衝撃的に着座して閉弁するので、弁ディスクが破損し
たり、閉弁時に大きな騒音が発生する問題があった。In the above-mentioned conventional disk type steam trap, the valve disk is impacted on the valve seat surface of the inner and outer ring valve seats to close the valve, so that the valve disk is damaged or closed. There was a problem that loud noise was generated at the time of valve.
【０００４】従って、本発明の技術的課題は、弁ディス
クが閉弁するときに内外輪弁座の弁座面に緩かに着座で
きるようにすることである。Accordingly, an object of the present invention is to make it possible to loosely seat on the valve seat surfaces of the inner and outer ring valve seats when the valve disc is closed.
【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、入口と出口を
形成した本体に蓋部材を取り付けて内部に入口と出口が
開口する変圧室を形成し、入口及び出口の変圧室側開口
端に内外輪弁座からなる弁座面を形成し、内輪弁座面に
入口と変圧室を連通する流入孔を形成し、内外輪弁座面
の間に環状溝を形成して、該環状溝内に変圧室と出口を
連通する流出孔を形成し、内外輪弁座の弁座面に離着座
する弁ディスクを変圧室に配置したものにおいて、流出
孔を分割して複数形成し、該複数の流出孔を出口側に位
置せしめたものである。According to the technical means of the present invention taken to solve the above technical problem, a cover member is attached to a main body having an inlet and an outlet, and the inlet and the outlet are opened inside. A variable pressure chamber is formed, a valve seat surface including an inner and outer ring valve seat is formed at a variable pressure chamber side open end of an inlet and an outlet, and an inlet hole communicating the inlet and the variable pressure chamber is formed in the inner ring valve seat surface, and the inner and outer ring valves are formed. An annular groove was formed between the seating surfaces, an outlet hole communicating the variable pressure chamber and the outlet was formed in the annular groove, and a valve disk that was detachably seated on the valve seat surface of the inner and outer ring valve seats was disposed in the variable pressure chamber. In this device, a plurality of outflow holes are divided and formed, and the plurality of outflow holes are positioned on the outlet side.
【０００６】[0006]
【作用】上記の技術的手段の作用は下記の通りである。
流出孔を分割して複数形成し、該複数の流出孔を出口側
に位置せしめたことにより、流入孔から流出孔へ向かう
排出流体は、その流れの幅が従来のものよりも拡がり、
流速が緩かになる。従って、弁ディスクは内外輪弁座の
弁座面に緩かに着座できる。The operation of the above technical means is as follows.
By dividing the outflow hole into a plurality and forming the plurality of outflow holes on the outlet side, the discharge fluid flowing from the inflow hole to the outflow hole has a wider flow width than the conventional one,
Flow velocity becomes slow. Therefore, the valve disc can be loosely seated on the valve seat surfaces of the inner and outer ring valve seats.
【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及び図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と出口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６と外輪７を同芯状に形成
してその間に環状溝１３を形成すると共に、上端を弁座
面８とする。弁座面８上に円板状の弁ディスク９を配置
する。入口２と変圧室４は内輪６に形成した流入孔１０
を介して連通する。変圧室４と出口３は環状溝１３内に
形成した流出孔１１，１２を介して連通する。流出孔１
１，１２は出口３の上方に形成する。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment showing a specific example of the above technical means will be described (see FIGS. 1 and 2). An inlet 2 and an outlet 3 are formed on the same axis on the main body 1, and a transformer 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 6 and an outer ring 7 are formed concentrically at the opening ends of the inlet 2 and the outlet 3 on the side of the transformation chamber 4 to form an annular groove 13 therebetween, and the upper end is a valve seat surface 8. A disc-shaped valve disk 9 is arranged on the valve seat surface 8. The inlet 2 and the transformation chamber 4 are formed by an inflow hole 10 formed in the inner race 6.
To communicate through. The variable pressure chamber 4 and the outlet 3 communicate with each other through outflow holes 11 and 12 formed in the annular groove 13. Outflow hole 1
1 and 12 are formed above the outlet 3.
【０００８】次に作用を説明する。変圧室４内に蒸気が
滞留していない場合、入口２から流入してきた復水の圧
力は、流入孔１０を介して弁ディスク９の開弁方向に作
用することにより、弁デイスク９が弁座面８から離座し
て復水を流出孔１１，１２を介して出口３へ排出する。
復水の排出が完了して入口２から蒸気が流入し始める
と、その蒸気はただちに変圧室４内に充満すると共に、
弁ディスク９の下面を高速で流下することによって弁デ
ィスク９下面が静圧低下を来たし、弁デイスク９は弁座
面８に着座する。この場合の閉弁力は、変圧室４内の蒸
気圧力により弁ディスク９が弁座面８方向に負荷される
力と、流入孔１０から入口２蒸気圧力により弁ディスク
９を開弁方向に負荷する力との、差分により生じる。変
圧室４内に滞留していた蒸気の圧力が放熱等により低下
してくると、弁デイスク９を弁座面８に押圧する力も低
下してくる。この閉弁力が流入孔１０から作用する開弁
力よりも低下すると弁ディスク９は開弁する。Next, the operation will be described. When steam does not accumulate in the variable pressure chamber 4, the condensate pressure flowing from the inlet 2 acts in the valve opening direction of the valve disk 9 through the inlet hole 10, so that the valve disk 9 moves the valve seat 9. The condensate is discharged from the surface 8 to the outlet 3 through the outflow holes 11 and 12.
When the discharge of the condensate is completed and steam starts to flow in from the inlet 2, the steam immediately fills the transformer chamber 4 and
By flowing down the lower surface of the valve disk 9 at high speed, the lower surface of the valve disk 9 decreases in static pressure, and the valve disk 9 is seated on the valve seat surface 8. In this case, the valve closing force includes a force applied to the valve disk 9 in the direction of the valve seat surface 8 by the steam pressure in the variable pressure chamber 4 and a load applied to the valve disk 9 in the valve opening direction by the inlet 2 steam pressure from the inflow hole 10. It is caused by the difference with the force to be applied. When the pressure of the steam retained in the variable pressure chamber 4 decreases due to heat radiation or the like, the force of pressing the valve disk 9 against the valve seat surface 8 also decreases. When the valve closing force is lower than the valve opening force acting from the inflow hole 10, the valve disk 9 opens.
【０００９】流入孔の直径を７ｍｍ、流出孔の直径を
３．８ｍｍに形成された従来のものにおいては、弁ディ
スクが内外輪弁座の弁座面に着座する閉弁時の騒音が８
９ｄＢであった。これに対して、流入孔の直径を従来と
同じ７ｍｍに形成し、直径２．７ｍｍの２つの流出孔を
設けた本実施例においては、弁ディスクが内外輪弁座の
弁座面に着座する閉弁時の騒音が８２ｄＢに低下するこ
とを実験で確かめることができた。[0009] In the prior art in which the diameter of the inflow hole is 7 mm and the diameter of the outflow hole is 3.8 mm, the noise when the valve disc is seated on the valve seat surface of the inner and outer ring valve seats is 8.
It was 9 dB. On the other hand, in the present embodiment in which the diameter of the inflow hole is formed to be 7 mm which is the same as the conventional one and two outflow holes having a diameter of 2.7 mm are provided, the valve disc is seated on the valve seat surface of the inner and outer ring valve seats. Experiments have confirmed that the noise when closing the valve is reduced to 82 dB.
【００１０】[0010]
【発明の効果】上記のように本発明によれば、流出孔を
分割して複数形成し、該複数の流出孔を出口側に位置せ
しめることにより、弁ディスクが閉弁するときに内外輪
弁座の弁座面に緩かに着座できる。従って、弁ディスク
弁座面に着座するときの騒音を小さくでき、また弁ディ
スクが破損することもなくなる。As described above, according to the present invention, the outflow hole is divided into a plurality of holes, and the plurality of outflow holes are positioned on the outlet side. The seat can be loosely seated on the valve seat surface. Therefore, noise when seating on the valve disc valve seat surface can be reduced, and the valve disc is not damaged.
【図１】本発明のディスク式スチ―ムトラップの実施例
の断面図である。FIG. 1 is a sectional view of an embodiment of a disk type steam trap of the present invention.
【図２】図１におけるＩＩ−ＩＩ線断面図である。FIG. 2 is a sectional view taken along line II-II in FIG.
１ 本体 ２ 入口 ３ 出口 ４ 変圧室 ５ 蓋部材 ６ 内輪 ７ 外輪 ８ 弁座面 ９ 弁ディスク １０ 流入孔 １１，１２ 流出孔 １３ 環状溝 DESCRIPTION OF SYMBOLS 1 Main body 2 Inlet 3 Outlet 4 Transformation chamber 5 Lid member 6 Inner ring 7 Outer ring 8 Valve seat surface 9 Valve disk 10 Inflow holes 11, 12 Outflow holes 13 Annular groove
Claims (1)
り付けて内部に入口と出口が開口する変圧室を形成し、
入口及び出口の変圧室側開口端に内外輪弁座からなる弁
座面を形成し、内輪弁座面に入口と変圧室を連通する流
入孔を形成し、内外輪弁座面の間に環状溝を形成して、
該環状溝内に変圧室と出口を連通する流出孔を形成し、
内外輪弁座の弁座面に離着座する弁ディスクを変圧室に
配置したものにおいて、流出孔を分割して複数形成し、
該複数の流出孔を出口側に位置せしめたことを特徴とす
るディスク式スチ―ムトラップ。1. A transformation chamber having an inlet and an outlet formed therein by attaching a lid member to a main body having an inlet and an outlet formed therein.
A valve seat surface including inner and outer ring valve seats is formed at the opening end of the inlet and outlet at the side of the variable pressure chamber, an inlet hole communicating the inlet and the variable pressure chamber is formed at the inner ring valve seat surface, and a ring is formed between the inner and outer ring valve seat surfaces. Form a groove,
Forming an outflow hole in the annular groove communicating the transformation chamber and the outlet,
In the case where the valve discs that are separated from and seated on the valve seat surfaces of the inner and outer ring valve seats are arranged in the variable pressure chamber, the outflow holes are divided and formed in plurality,
A disk type steam trap, wherein the plurality of outflow holes are located on an outlet side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21199992A JP2741313B2 (en) | 1992-07-15 | 1992-07-15 | Disc type steam trap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21199992A JP2741313B2 (en) | 1992-07-15 | 1992-07-15 | Disc type steam trap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0634097A JPH0634097A (en) | 1994-02-08 |
| JP2741313B2 true JP2741313B2 (en) | 1998-04-15 |
Family
ID=16615221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21199992A Expired - Fee Related JP2741313B2 (en) | 1992-07-15 | 1992-07-15 | Disc type steam trap |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2741313B2 (en) |
-
1992
- 1992-07-15 JP JP21199992A patent/JP2741313B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0634097A (en) | 1994-02-08 |
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