JP2002122292A - Condensate discharging device - Google Patents
Condensate discharging deviceInfo
- Publication number
- JP2002122292A JP2002122292A JP2000313086A JP2000313086A JP2002122292A JP 2002122292 A JP2002122292 A JP 2002122292A JP 2000313086 A JP2000313086 A JP 2000313086A JP 2000313086 A JP2000313086 A JP 2000313086A JP 2002122292 A JP2002122292 A JP 2002122292A
- Authority
- JP
- Japan
- Prior art keywords
- orifice hole
- hole
- rolling member
- check valve
- orifice
- 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.)
- Pending
Links
Landscapes
- Check Valves (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、蒸気輸送管や蒸気
使用機器等の蒸気配管系に発生する復水を自動的に排出
する復水排出装置に関し、特に流体中に溶解している金
属イオンが復水排出孔の表面に堆積して閉塞してしまう
ことを防止できると共に、下流側から上流側への逆流を
防止できるものに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a condensate discharge device for automatically discharging condensate generated in a steam piping system such as a steam transport pipe or a steam-using apparatus, and more particularly to a metal ion dissolved in a fluid. And the like can be prevented from accumulating on the surface of the condensate discharge hole and clogging, and can prevent backflow from the downstream side to the upstream side.
【0002】[0002]
【従来の技術】従来の復水排出装置を特開平10−17
6791号公報に開示されたスチームトラップを参照し
て説明する。これは、復水排出孔の下流側に復水排出孔
よりも開口面積の小さなオリフィス孔を形成し、オリフ
ィス孔の上端に一部を位置せしめた転動部材をオリフィ
ス孔を貫通して配置し、転動部材の上に復水排出孔から
オリフィス孔への流れを許し逆方向の流れを止める逆止
弁体を設けたものである。復水排出孔の圧力をその上流
側の圧力に近い高圧に保って、復水を緩やかに復水排出
孔を流下させることにより、復水排出孔の表面に金属イ
オンが付着することを防止し、オリフィス孔の表面に付
着する金属イオンを転動部材によって取除く。また、下
流側の流体圧力が上流側よりも高くなったときに逆止弁
体がオリフィス孔から復水排出孔への逆流を防止する。2. Description of the Related Art A conventional condensate discharge device is disclosed in
This will be described with reference to the steam trap disclosed in Japanese Patent No. 6791. In this method, an orifice hole having an opening area smaller than that of the condensate discharge hole is formed downstream of the condensate discharge hole, and a rolling member partially positioned at the upper end of the orifice hole is disposed through the orifice hole. A check valve is provided on the rolling member to allow flow from the condensate discharge hole to the orifice hole and stop flow in the reverse direction. By maintaining the pressure of the condensate discharge hole at a high pressure close to the pressure on the upstream side and gently flowing the condensate down the condensate discharge hole, metal ions are prevented from adhering to the surface of the condensate discharge hole. The metal ions adhering to the surface of the orifice hole are removed by the rolling member. Further, when the fluid pressure on the downstream side becomes higher than that on the upstream side, the check valve prevents the backflow from the orifice hole to the condensate discharge hole.
【0003】[0003]
【発明が解決しようとする課題】上記のものは、復水排
出孔の表面に金属イオンが付着することを防止できると
共にオリフィス孔の表面に付着する金属イオンを取除く
ことができ、また、オリフィス孔から復水排出孔への逆
流を防止できると言う優れたものであるが、逆止弁体が
その重量が重いために変位し難く、逆流防止が遅れた
り、転動部材の転動が妨げられる問題点があった。従っ
て、本発明の技術的課題は、逆止弁体の逆流防止能力と
転動部材の転動能力を高めた復水排出装置を提供するこ
とである。According to the above-mentioned structure, it is possible to prevent metal ions from adhering to the surface of the condensate discharge hole and to remove metal ions adhering to the surface of the orifice hole. Although it is an excellent thing that can prevent backflow from the hole to the condensate discharge hole, it is difficult to displace because the check valve body is heavy, delaying backflow prevention and hindering rolling of the rolling member There were problems. Accordingly, a technical problem of the present invention is to provide a condensate discharge device in which the check valve body has an increased backflow prevention capability and a higher rolling capability of a rolling member.
【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、復水排出孔の
下流側に復水排出孔よりも開口面積の小さなオリフィス
孔を形成し、オリフィス孔の上端に一部を位置せしめた
転動部材をオリフィス孔を貫通して配置し、転動部材の
下にオリフィス孔の上流側から下流側への流れを許し逆
方向の流れを止める逆止弁体を設け、逆止弁体をフロー
トで形成したことを特徴とする復水排出装置にある。Means for Solving the Problems The technical means of the present invention taken to solve the above technical problem is to provide an orifice hole having a smaller opening area than the condensate discharge hole downstream of the condensate discharge hole. A rolling member formed and partially positioned at the upper end of the orifice hole is arranged to penetrate the orifice hole, and allows a flow from an upstream side to a downstream side of the orifice hole below the rolling member to allow a flow in a reverse direction. And a check valve element for stopping the flow of water, and the check valve element is formed by a float.
【0005】[0005]
【発明の実施の形態】本発明は、従来技術と同様に、復
水排出孔の圧力をその上流側の圧力に近い高圧に保っ
て、復水を緩やかに復水排出孔を流下させることによ
り、復水排出孔の表面に金属イオンが付着することを防
止し、オリフィス孔の表面に付着する金属イオンを転動
部材によって取除く。また、下流側の流体圧力が上流側
よりも高くなったときに逆止弁体がオリフィス孔の下流
側から上流側への逆流を防止する。そして、本発明によ
るフロートで形成した逆止弁体は、その重量を軽く作る
ことができるので変位し易く、素早く逆流を防止でき
る。また、逆止弁体が変位し易いので転動部材も転動し
易くなる。DESCRIPTION OF THE PREFERRED EMBODIMENTS As in the prior art, the present invention is to maintain the pressure of the condensate discharge hole at a high pressure close to the pressure on the upstream side, and to make the condensate flow slowly down the condensate discharge hole. The metal ions are prevented from adhering to the surface of the condensate discharge hole, and the metal ions adhering to the surface of the orifice hole are removed by the rolling member. Further, when the fluid pressure on the downstream side becomes higher than that on the upstream side, the check valve prevents the backflow from the downstream side of the orifice hole to the upstream side. Further, the check valve body formed of the float according to the present invention can be made light in weight, so that it is easily displaced, and the backflow can be prevented quickly. Further, since the check valve body is easily displaced, the rolling member is also easily rolled.
【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1参照)。本実施例は熱応動式スチームトラ
ップに適用したものである。上ケーシング1と下ケーシ
ング2とをねじ結合して、内部に弁室3を有する弁ケー
シングが形成される。上ケーシング1に入口4が、下ケ
ーシング2に出口5が形成される。入口4と出口5は同
軸に形成されている。下ケーシング2の横断壁6に、弁
室3と出口5を連通する導出路7を有する弁座部材8が
ねじ結合される。上ケーシング1と下ケーシング2及び
弁座部材8は夫々ステンレス鋼で形成される。An embodiment showing a specific example of the above technical means will be described (see FIG. 1). This embodiment is applied to a heat-responsive steam trap. The upper casing 1 and the lower casing 2 are screw-connected to form a valve casing having a valve chamber 3 therein. An inlet 4 is formed in the upper casing 1 and an outlet 5 is formed in the lower casing 2. The inlet 4 and the outlet 5 are formed coaxially. A valve seat member 8 having an outlet 7 communicating the valve chamber 3 and the outlet 5 is screwed to the transverse wall 6 of the lower casing 2. The upper casing 1, the lower casing 2, and the valve seat member 8 are each formed of stainless steel.
【0007】弁座部材8の上方に温度制御機素10が配
置される。温度制御機素10は、注入口11を有する壁
部材12と、注入口11を密封する栓部材13と、壁部
材12との間に収容室14を形成するダイヤフラム15
と、収容室14に密封した膨脹媒体16と、ダイヤフラ
ム15に固着した弁部材17と、ダイヤフラム15の外
周縁を壁部材12との間に挟んで固着する固着壁部材1
8とから形成される。温度制御機素10は、下ケーシン
グ2の内周に固定されたスナップリング20によって保
持され、固着壁部材18の下面外周が下ケーシング2の
内周に形成された複数個のリブ19の段部に当ってい
る。温度制御機素10とスナップリング20は共にステ
ンレス鋼で形成される。膨脹媒体16は、水、水より沸
点の低い液体、或いはそれらの混合物で形成される。A temperature control element 10 is arranged above the valve seat member 8. The temperature control element 10 includes a wall member 12 having an inlet 11, a plug member 13 for sealing the inlet 11, and a diaphragm 15 forming an accommodation chamber 14 between the wall member 12.
An expansion medium 16 sealed in the storage chamber 14, a valve member 17 fixed to the diaphragm 15, and a fixed wall member 1 fixed to the outer peripheral edge of the diaphragm 15 with the wall member 12 interposed therebetween.
8 is formed. The temperature control element 10 is held by a snap ring 20 fixed to the inner periphery of the lower casing 2, and the outer periphery of the lower surface of the fixed wall member 18 is a stepped portion of a plurality of ribs 19 formed on the inner periphery of the lower casing 2. Is hitting. Both the temperature control element 10 and the snap ring 20 are formed of stainless steel. The expansion medium 16 is formed of water, a liquid having a lower boiling point than water, or a mixture thereof.
【0008】弁座部材8の導出路7は、弁室3側から出
口5側に順次形成された、復水排出孔21と、復水排出
孔21よりも開口面積の小さな上流オリフィス孔22
と、上流オリフィス孔22よりも開口面積の小さなオリ
フィス孔23とから成る。オリフィス孔23は、導出路
7に圧入固定されたオリフィス部材24に形成される。
オリフィス孔23を貫通して転動部材25を配置する。
転動部材25は、細長い棒材を曲げて、上側にオリフィ
ス孔23よりも大きな外形の円状部を形成したものであ
り、円状部はオリフィス孔23の上端に載っている。転
動部材25はオリフィス孔23を貫通し、下端がオリフ
ィス部材24の下方に位置している。転動部材25の下
に、ステンレス鋼薄板で中空球形に作ったフロートとし
ての逆止弁体27を溶接して連結する。逆止弁体27
は、出口5側の流体圧力が入口4側よりも高くなると上
方に変位して上方のオリフィス孔23の下端を閉口す
る。逆止弁体27の形状は上記の球状に限らず円板状等
であってもよい。また、落下防止部材を設けることによ
り自由状態で配置してもよい。オリフィス部材24と転
動部材25と逆止弁体27は夫々ステンレス鋼で形成さ
れる。番号26はスクリーンである。The outlet path 7 of the valve seat member 8 includes a condensate discharge hole 21 and an upstream orifice hole 22 having an opening area smaller than that of the condensate discharge hole 21 which are sequentially formed from the valve chamber 3 side to the outlet 5 side.
And an orifice hole 23 having an opening area smaller than that of the upstream orifice hole 22. The orifice hole 23 is formed in an orifice member 24 which is press-fitted and fixed to the outlet passage 7.
The rolling member 25 is disposed through the orifice hole 23.
The rolling member 25 is formed by bending an elongated rod to form a circular portion having an outer shape larger than the orifice hole 23 on the upper side, and the circular portion rests on the upper end of the orifice hole 23. The rolling member 25 passes through the orifice hole 23, and the lower end is located below the orifice member 24. Under the rolling member 25, a check valve body 27 as a float made of a stainless steel thin plate and having a hollow spherical shape is welded and connected. Check valve body 27
When the fluid pressure on the outlet 5 side becomes higher than that on the inlet 4 side, it is displaced upward to close the lower end of the upper orifice hole 23. The shape of the check valve body 27 is not limited to the spherical shape described above, but may be a disk shape or the like. Further, the device may be arranged in a free state by providing a fall prevention member. The orifice member 24, the rolling member 25, and the check valve body 27 are each formed of stainless steel. Numeral 26 is a screen.
【0009】上記の熱応動式スチームトラップの作動は
次の通りである。入口4側の流体圧力が出口5側よりも
高い通常時は、転動部材25及び逆止弁体27が入口4
側の流体圧力の作用を受けて下方に変位して逆止弁体2
7がオリフィス孔23の下端を開口している。入口4か
ら弁室3に流入してくる流体の温度が低い場合、膨脹媒
体16は収縮し、ダイヤフラム15が壁部材12側に変
位し、弁部材17が弁座部材8から離座して導出路7を
開口している。これにより、復水を導出路7から出口5
に排出する。このとき、復水は上流オリフィス孔22と
オリフィス孔23の作用によって復水排出孔21を緩か
に流下する。同様に、復水はオリフィス孔23の作用に
よって上流オリフィス孔22を緩かに流下する。これに
より、復水中に溶解している金属イオンが復水排出孔2
1及び上流オリフィス孔22の表面に付着しない。復水
はオリフィス孔23を高速に流れ、金属イオンがオリフ
ィス孔23の表面に付着することとなるが、流下する復
水流によって転動部材25と逆止弁体27が転動するの
で、オリフィス孔23の表面に付着する金属イオンは転
動部材25によって取除かれ堆積することはない。金属
イオンは復水と共に出口5に流れ去る。The operation of the above-mentioned thermo-responsive steam trap is as follows. When the fluid pressure on the inlet 4 side is higher than that on the outlet 5 side, the rolling member 25 and the check valve 27
Is displaced downward by the action of the fluid pressure on the
7 opens the lower end of the orifice hole 23. When the temperature of the fluid flowing into the valve chamber 3 from the inlet 4 is low, the expansion medium 16 contracts, the diaphragm 15 is displaced toward the wall member 12, and the valve member 17 is separated from the valve seat member 8 and led out. Road 7 is open. As a result, the condensate is discharged from outlet 7 to outlet 5
To be discharged. At this time, the condensate slowly flows down the condensate discharge hole 21 by the action of the upstream orifice hole 22 and the orifice hole 23. Similarly, the condensate flows down the upstream orifice hole 22 slowly by the action of the orifice hole 23. As a result, the metal ions dissolved in the condensate are condensed into the condensate discharge hole 2
1 and does not adhere to the surface of the upstream orifice hole 22. The condensate flows through the orifice hole 23 at high speed, and the metal ions adhere to the surface of the orifice hole 23. However, the rolling member 25 and the check valve body 27 roll due to the condensate flowing down. The metal ions adhering to the surface of 23 are removed by the rolling members 25 and do not accumulate. The metal ions flow off to the outlet 5 together with the condensate.
【0010】復水の排出によって弁室3内に蒸気が流入
してくると、膨脹媒体16が膨脹し、ダイヤフラム15
が固着壁部材18側に変位し、弁部材17が弁座部材8
に着座して導出路7を閉止する。これにより、蒸気の流
出を防止する。出口5側の流体圧力が入口4側よりも高
くなると、転動部材25と逆止弁体27が出口5側の流
体圧力の作用を受けて上方に変位し、逆止部材27が上
方のオリフィス孔23の下端を閉口して逆流を防止す
る。When steam flows into the valve chamber 3 due to the discharge of condensate, the expansion medium 16 expands and the diaphragm 15 expands.
Is displaced to the fixed wall member 18 side, and the valve member 17 is moved to the valve seat member 8.
And the outlet path 7 is closed. This prevents the outflow of steam. When the fluid pressure on the outlet 5 side becomes higher than that on the inlet 4 side, the rolling member 25 and the check valve body 27 are displaced upward by the action of the fluid pressure on the outlet 5 side, and the check member 27 is moved upward by the orifice. The lower end of the hole 23 is closed to prevent backflow.
【0011】上記実施例では熱応動式スチームトラップ
に適用した復水排出装置を例示したが、本発明はフロー
ト式やディスク式やオリフィス式等の他の型式の復水排
出装置にも適用できるものである。In the above embodiment, a condensate discharge device applied to a thermally responsive steam trap has been exemplified. However, the present invention can be applied to other types of condensate discharge devices such as a float type, a disk type and an orifice type. It is.
【0012】[0012]
【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、逆止弁体をフロートで形成
して変位し易くすることにより、逆止弁体の逆流防止能
力を高めることができると共に転動部材の転動能力を高
めることができると言う優れた効果を生じる。The present invention has the following specific effects. As described above, according to the present invention, the check valve body is formed of a float so as to be easily displaced, so that the check valve prevention capability of the check valve body can be enhanced and the rolling capability of the rolling member is enhanced. Can produce an excellent effect.
【図1】本発明の実施例の復水排出装置の断面図。FIG. 1 is a sectional view of a condensate discharge device according to an embodiment of the present invention.
21 復水排出孔 22 上流オリフィス孔 23 オリフィス孔 25 転動部材 27 逆止弁体 21 Condensate discharge hole 22 Upstream orifice hole 23 Orifice hole 25 Rolling member 27 Check valve
Claims (1)
開口面積の小さなオリフィス孔を形成し、オリフィス孔
の上端に一部を位置せしめた転動部材をオリフィス孔を
貫通して配置し、転動部材の下にオリフィス孔の上流側
から下流側への流れを許し逆方向の流れを止める逆止弁
体を設け、逆止弁体をフロートで形成したことを特徴と
する復水排出装置。An orifice hole having an opening area smaller than that of the condensate discharge hole is formed downstream of the condensate discharge hole, and a rolling member partially positioned at the upper end of the orifice hole is passed through the orifice hole. A check valve body disposed below the rolling member to allow the flow from the upstream side to the downstream side of the orifice hole and stop the flow in the reverse direction, and the check valve body is formed by a float. Water drainage device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000313086A JP2002122292A (en) | 2000-10-13 | 2000-10-13 | Condensate discharging device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000313086A JP2002122292A (en) | 2000-10-13 | 2000-10-13 | Condensate discharging device |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2002122292A true JP2002122292A (en) | 2002-04-26 |
Family
ID=18792557
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2000313086A Pending JP2002122292A (en) | 2000-10-13 | 2000-10-13 | Condensate discharging device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2002122292A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106015912A (en) * | 2016-08-03 | 2016-10-12 | 氟络塞尔特种阀门(苏州)有限公司 | Bidirectional steam trap butterfly valve |
-
2000
- 2000-10-13 JP JP2000313086A patent/JP2002122292A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106015912A (en) * | 2016-08-03 | 2016-10-12 | 氟络塞尔特种阀门(苏州)有限公司 | Bidirectional steam trap butterfly valve |
CN106015912B (en) * | 2016-08-03 | 2018-10-26 | 氟络塞尔特种阀门(苏州)有限公司 | Two-way hydrophobic steam butterfly valve |
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