JPH094790A - Thermally-actuated steam trap - Google Patents
Thermally-actuated steam trapInfo
- Publication number
- JPH094790A JPH094790A JP17441295A JP17441295A JPH094790A JP H094790 A JPH094790 A JP H094790A JP 17441295 A JP17441295 A JP 17441295A JP 17441295 A JP17441295 A JP 17441295A JP H094790 A JPH094790 A JP H094790A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valve seat
- diaphragm
- seat member
- control element
- 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.)
- Granted
Links
Landscapes
- Temperature-Responsive Valves (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、各種蒸気使用機器や蒸
気配管で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、蒸気と復水で加熱冷却されその温度
に応じて膨脹収縮する媒体を含む温度制御機素を用い
て、所望温度以下の復水を系外へ排出する熱応動式スチ
―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 that automatically discharges condensate generated in various steam-using devices and steam pipes, and in particular, it is heated and cooled by steam and condensate and expands according to its temperature. The present invention relates to a heat-actuated steam trap that discharges condensed water below a desired temperature to the outside of a system by using a temperature control element containing a contracting medium.
【０００２】[0002]
【従来の技術】熱応動式スチ―ムトラップの基本的構成
は、例えば、特開平６−１２９５９８号公報から公知で
ある。当該公報から理解されるように、入口と弁室と出
口を形成とた弁ケ―シングと、弁室と出口を連通する導
出路を形成した弁座部材と、壁部材とダイヤフラムの間
に膨脹媒体を封入しダイヤフラムに弁部材を取り付けた
温度制御機素を具備し、弁座部材を弁室と出口の間に取
り付け、弁部材を弁座部材に対面させて温度制御機素を
弁室に取り付け、弁ケ―シングの内周壁と温度制御機素
の外周との間に流体通過用の隙間を設け、弁部材の弁座
部材への着座時に弁座部材の導出路を閉止するシ―ル面
を弁部材に形成したものである。2. Description of the Related Art The basic structure of a heat-actuated steam trap is known from, for example, Japanese Unexamined Patent Publication No. 6-129598. As understood from the publication, a valve casing having an inlet, a valve chamber and an outlet, a valve seat member having a lead-out passage communicating with the valve chamber and the outlet, and an expansion between a wall member and a diaphragm. It is equipped with a temperature control element in which a medium is enclosed and a valve member is attached to the diaphragm.The valve seat member is attached between the valve chamber and the outlet, and the valve member faces the valve seat member so that the temperature control element is in the valve chamber. A seal that installs a gap for fluid passage between the inner wall of the valve casing and the outer periphery of the temperature control element and closes the lead-out path of the valve seat member when the valve member is seated on the valve seat member. The surface is formed on the valve member.
【０００３】弁室内の温度が上昇すると膨脹媒体が膨脹
し、ダイヤフラムを介して弁部材が弁座部材に着座して
導出路を閉止する。これによって、蒸気の漏出を防止す
る。弁室内の温度が低下すると膨脹媒体が収縮し、弁部
材が弁座部材から離座して導出路を開口する。これによ
って、復水を系外へ排出する。When the temperature in the valve chamber rises, the expansion medium expands, and the valve member is seated on the valve seat member via the diaphragm to close the outlet passage. This prevents steam from leaking out. When the temperature in the valve chamber decreases, the expansion medium contracts, and the valve member separates from the valve seat member to open the outlet passage. This discharges the condensate out of the system.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、このよ
うな様式の熱応動式スチ―ムトラップにあっては、膨脹
媒体の膨脹収縮温度を境にして小刻みに開閉弁作動を繰
り返すので、復水がたらたらと排出され、蒸気漏れと見
間違うことがあり望ましくない。また弁部材と弁座部材
が早期に摩耗して蒸気漏れを生じてしまう問題がある。However, in such a thermo-responsive steam trap of this type, the on-off valve operation is repeated little by little after the expansion and contraction temperature of the expansion medium, so that the condensate cannot be recovered. And it is not desirable because it may be mistaken for a steam leak. Further, there is a problem that the valve member and the valve seat member are worn out early, causing steam leakage.
【０００５】従って、本発明の技術的課題は、間欠的な
開閉弁作動を行う熱応動式スチ―ムトラップを提供する
ことである。Therefore, a technical object of the present invention is to provide a heat-actuated steam trap which performs intermittent on-off valve operation.
【０００６】[0006]
【課題を解決する為の手段】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、入口と弁室と出
口を形成した弁ケ―シングと、弁室と出口を連通する導
出路を形成した弁座部材と、壁部材とダイヤフラムの間
に膨脹媒体を封入しダイヤフラムに弁部材を取り付けた
温度制御機素を具備し、弁座部材を弁室と出口の間に取
り付け、弁部材を弁座部材に対面させて温度制御機素を
弁室に取り付け、膨脹媒体の膨脹収縮によるダイヤフラ
ムの変位によって弁部材を弁座部材に離着座せしめるも
のにおいて、弁ケ―シングの内周壁と温度制御機素の外
周との間を密封するシ―ル部材を設け、温度制御機素に
壁部材とダイヤフラムと弁部材を貫通して流体通過孔を
形成し、弁部材の弁座部材への着座時に弁部材の流体通
過孔を閉止するシ―ル面を弁座部材に形成した熱応動式
スチ―ムトラップにある。[Means for Solving the Problems] The technical means of the present invention taken to solve the above-mentioned technical problems includes a valve casing having an inlet, a valve chamber and an outlet, and a valve chamber and an outlet communicating with each other. It has a valve seat member that forms a discharge path and a temperature control element that encloses an expansion medium between the wall member and the diaphragm and attaches the valve member to the diaphragm. The valve seat member is attached between the valve chamber and the outlet. In the case where the valve member faces the valve seat member, the temperature control element is attached to the valve chamber, and the valve member is seated on and away from the valve seat member by the displacement of the diaphragm due to the expansion and contraction of the expansion medium, A seal member is provided to seal between the peripheral wall and the outer periphery of the temperature control element, and the temperature control element penetrates the wall member, the diaphragm and the valve member to form a fluid passage hole, and a valve seat member of the valve member. The seat that closes the fluid passage hole of the valve member when seated on Thermally actuated to form Le plane valve seat member formula steel - in Mutorappu.
【０００７】[0007]
【作用】上記の技術的手段の作用は下記の通りである。
弁室内温度の上昇によって膨脹媒体が膨脹すると、ダイ
ヤフラムを介して弁部材が弁座部材に着座し、弁座部材
のシ―ル面が弁部材の流体通過孔を閉止する。弁ケ―シ
ングの内周壁と温度制御機素の外周との間はシ―ル部材
によって密封されており、且つ流体通過孔が閉止される
ことによって、弁室内が温度制御機素を挟んで入口側と
出口側に隔てられる。入口側から隔離され出口側に連通
した出口側弁室は、圧力が出口側圧力まで低下するの
で、出口側弁室に面するダイヤフラムを開弁方向に変位
せしめる力が低下する。これにより、弁室内温度の低下
によって膨脹媒体が収縮するときにダイヤフラムが素早
く変位し難くなり、弁室内温度がさらに低下してからダ
イヤフラムが変位して弁部材が弁座部材から離座し、弁
座部材のシ―ル面が弁部材の流体通過孔を開口すること
となる。これによって間欠的な開閉弁動作を行うことが
可能となる。The operation of the above technical means is as follows.
When the expansion medium expands due to the rise in the temperature in the valve chamber, the valve member is seated on the valve seat member via the diaphragm, and the seal surface of the valve seat member closes the fluid passage hole of the valve member. The inner wall of the valve casing and the outer periphery of the temperature control element are sealed by a seal member, and the fluid passage hole is closed, so that the temperature control element is sandwiched between the valve chamber and the inlet. Side and exit side. The pressure in the outlet side valve chamber, which is isolated from the inlet side and communicates with the outlet side, decreases to the outlet side pressure, so the force that displaces the diaphragm facing the outlet side valve chamber in the valve opening direction decreases. This makes it difficult for the diaphragm to quickly displace when the expansion medium contracts due to the decrease in the temperature in the valve chamber, and when the temperature in the valve chamber further decreases, the diaphragm displaces and the valve member separates from the valve seat member. The seal surface of the seat member opens the fluid passage hole of the valve member. This makes it possible to perform an intermittent on-off valve operation.
【０００８】[0008]
【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）。図１において、上ケ―シング１と
下ケ―シング２とをねじ結合して、内部に弁室３を有す
る弁ケ―シングを形成する。上ケ―シング１には弁室３
に連通する入口４を形成し、下ケ―シング２には弁室３
から連通する出口５を形成する。弁室３と出口５との間
の隔壁６に、弁座部材７をねじ結合する。弁座部材７に
は弁室３と出口５を連通する複数個の導出路８を形成す
る。EXAMPLE An example showing a concrete example of the above technical means will be described (see FIG. 1). In FIG. 1, the upper casing 1 and the lower casing 2 are screwed together to form a valve casing having a valve chamber 3 therein. The upper casing 1 has a valve chamber 3
An inlet 4 communicating with the lower casing 2 is formed in the lower casing 2.
Forming an outlet 5 communicating with A valve seat member 7 is screwed to a partition wall 6 between the valve chamber 3 and the outlet 5. The valve seat member 7 has a plurality of outlet passages 8 that connect the valve chamber 3 and the outlet 5.
【０００９】弁座部材７の上方に、温度制御機素９を配
置する。温度制御機素９は、中央開口１０と注入口１１
を形成した壁部材１２と、中央開口１３を形成したダイ
ヤフラム１４と、中央開口１５を形成した弁部材１６
と、弁部材１６が出入する開口を形成した固着壁部材１
７とで構成する。A temperature control element 9 is arranged above the valve seat member 7. The temperature control element 9 has a central opening 10 and an inlet 11.
A wall member 12 having a central opening 13, a diaphragm 14 having a central opening 13, and a valve member 16 having a central opening 15.
And the fixed wall member 1 having an opening through which the valve member 16 comes in and out.
7.
【００１０】ダイヤフラム１４と弁部材１６を夫々の中
央開口１３，１５を並べて溶接（参照番号１８）する。
また壁部材１２の中央開口１０の縁とダイヤフラム１４
の中央開口１３の縁を溶接（参照番号１９）し、中央開
口１０，１３，１５によって壁部材１２とダイヤフラム
１４と弁部材１６を貫通する流体通過孔２０を形成す
る。壁部材１２とダイヤフラム１４と固着壁部材１７の
夫々の外周縁を溶接（参照番号２１）する。壁部材１２
とダイヤフラム１４との間の密閉空間に注入口１１から
膨脹媒体２２を注入し、栓部材２３で塞ぐ。膨脹媒体２
２は、水、水より沸点の低い液体、或いはそれらの混合
物で形成する。The diaphragm 14 and the valve member 16 are welded (reference numeral 18) with the respective central openings 13 and 15 arranged side by side.
Further, the edge of the central opening 10 of the wall member 12 and the diaphragm 14
The edge of the central opening 13 is welded (reference numeral 19) to form the fluid passage hole 20 penetrating the wall member 12, the diaphragm 14 and the valve member 16 by the central openings 10, 13, 15. The outer peripheral edges of the wall member 12, the diaphragm 14, and the fixed wall member 17 are welded (reference numeral 21). Wall member 12
The expansion medium 22 is injected from the injection port 11 into the sealed space between the diaphragm 14 and the diaphragm 14, and the expansion medium 22 is closed by the plug member 23. Expansion medium 2
2 is formed of water, a liquid having a lower boiling point than water, or a mixture thereof.
【００１１】温度制御機素９は、弁部材１６を弁座部材
７に対面して弁室３内に配置し、下ケ―シング２の内周
壁２４に形成した段部２５にシ―ル手段としてのガスケ
ット２６を介して載せ、スナップリング２７で保持す
る。ガスケット２６によって下ケ―シング２の内周壁２
４と温度制御機素９の外周との間を密封する。弁座部材
７の上面に弁部材１６が着座したときに流体通過孔２０
を閉止するシ―ル面２９を形成する。In the temperature control element 9, the valve member 16 is arranged in the valve chamber 3 so as to face the valve seat member 7, and the sealing means is provided on the step portion 25 formed on the inner peripheral wall 24 of the lower casing 2. It is mounted via the gasket 26 as the above and is held by the snap ring 27. Inner peripheral wall 2 of lower casing 2 by gasket 26
4 and the outer periphery of the temperature control element 9 are sealed. When the valve member 16 is seated on the upper surface of the valve seat member 7, the fluid passage hole 20
Forming a sealing surface 29 for closing.
【００１２】弁室３内の温度が上昇すると膨脹媒体２２
が膨脹する。膨脹媒体２２の膨脹によってダイヤフラム
１４が下方に変位し、弁部材１６が弁座部材７に着座す
る。弁部材１６が弁座部材７に着座すると、弁座部材７
のシ―ル面２９が弁部材１６の流体通過孔２０を閉止す
る。これによって蒸気の漏出を防止する。流体通過孔２
０が閉止されると、下ケ―シング２の内周壁２４と温度
制御機素９の外周との間はガスケット２６によって密封
されているので、弁室３内が温度制御機素９を挟んで入
口４側と出口５側に隔てられる。弁室３内の温度が低下
してくると、膨脹媒体２２が収縮してダイヤフラム１４
が上方に変位するのであるが、弁室３の出口５側の圧力
が出口５側圧力まで低下しているので、ダイヤフラム１
４を上方に変位せしめる力が弱く、弁室３内温度がさら
に低下してからダイヤフラム１４が上方に変位して弁部
材１６が弁座部材７から離座し、弁座部材７のシ―ル面
２９が弁部材１６の流体通過孔２０を開口する。これに
よって復水を出口５から排出する。When the temperature in the valve chamber 3 rises, the expansion medium 22
Expands. The diaphragm 14 is displaced downward by the expansion of the expansion medium 22, and the valve member 16 is seated on the valve seat member 7. When the valve member 16 is seated on the valve seat member 7, the valve seat member 7
The seal surface 29 of the valve closes the fluid passage hole 20 of the valve member 16. This prevents vapor leakage. Fluid passage hole 2
When 0 is closed, the inner wall 24 of the lower casing 2 and the outer periphery of the temperature control element 9 are sealed by the gasket 26, so that the inside of the valve chamber 3 sandwiches the temperature control element 9. It is separated into the inlet 4 side and the outlet 5 side. When the temperature in the valve chamber 3 decreases, the expansion medium 22 contracts and the diaphragm 14
Is displaced upward, but since the pressure on the outlet 5 side of the valve chamber 3 has dropped to the pressure on the outlet 5 side, the diaphragm 1
The force for displacing 4 upward is weak, the temperature in the valve chamber 3 further decreases, the diaphragm 14 is displaced upward, the valve member 16 is separated from the valve seat member 7, and the seal of the valve seat member 7 is released. The surface 29 opens the fluid passage hole 20 of the valve member 16. As a result, the condensate is discharged from the outlet 5.
【００１３】[0013]
【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る熱応動式スチ―ムトラップは、
間欠的な開閉弁作動を行うことができるので、復水排出
時に蒸気漏れと見間違うことがなく、また弁部材と弁座
部材の摩耗が生じ難くなり長期間に渡って良好な開閉弁
作動を行うことができる。The present invention has the following specific effects. As described above, the heat-actuated steam trap according to the present invention is
Since intermittent on-off valve operation can be performed, there is no mistake for steam leakage at the time of condensate discharge, and wear of the valve member and valve seat member is less likely to occur. It can be carried out.
【図１】本発明の熱応動式スチ―ムトラップの実施例の
断面図FIG. 1 is a sectional view of an embodiment of a heat-actuated steam trap according to the present invention.
１ 上ケ―シング ２ 下ケ―シング ３ 弁室 ４ 入口 ５ 出口 ７ 弁座部材 ８ 導出路 ９ 温度制御機素 １２ 壁部材 １４ ダイヤフラム １６ 弁部材 ２０ 流体通過孔 ２２ 膨脹媒体 ２４ 下ケ―シングの内周壁 ２６ ガスケット ２９ 弁座部材のシ―ル面 1 upper casing 2 lower casing 3 valve chamber 4 inlet 5 outlet 7 valve seat member 8 outlet passage 9 temperature control element 12 wall member 14 diaphragm 16 valve member 20 fluid passage hole 22 expansion medium 24 of lower casing Inner peripheral wall 26 Gasket 29 Seal face of valve seat member
Claims (1)
グと、弁室と出口を連通する導出路を形成した弁座部材
と、壁部材とダイヤフラムの間に膨脹媒体を封入しダイ
ヤフラムに弁部材を取り付けた温度制御機素を具備し、
弁座部材を弁室と出口の間に取り付け、弁部材を弁座部
材に対面させて温度制御機素を弁室に取り付け、膨脹媒
体の膨脹収縮によるダイヤフラムの変位によって弁部材
を弁座部材に離着座せしめるものにおいて、弁ケ―シン
グの内周壁と温度制御機素の外周との間を密封するシ―
ル部材を設け、温度制御機素に壁部材とダイヤフラムと
弁部材を貫通して流体通過孔を形成し、弁部材の弁座部
材への着座時に弁部材の流体通過孔を閉止するシ―ル面
を弁座部材に形成したことを特徴とする熱応動式スチ―
ムトラップ。1. A diaphragm in which an expansion medium is sealed between a wall member and a diaphragm, a valve casing having an inlet, a valve chamber and an outlet formed therein, a valve seat member having a lead-out passage communicating with the valve chamber and the outlet. Equipped with a temperature control element with a valve member attached to
The valve seat member is mounted between the valve chamber and the outlet, the valve member is faced to the valve seat member, the temperature control element is mounted on the valve chamber, and the valve member is mounted on the valve seat member by displacement of the diaphragm due to expansion and contraction of the expansion medium. For seats that are to be separated and seated, a seal that seals between the inner wall of the valve casing and the outer periphery of the temperature control element.
A seal member is provided, the temperature control element penetrates the wall member, the diaphragm, and the valve member to form a fluid passage hole, and the fluid passage hole of the valve member is closed when the valve member is seated on the valve seat member. A heat-actuated steel sheet whose surface is formed as a valve seat member.
Trap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17441295A JP3381124B2 (en) | 1995-06-15 | 1995-06-15 | Thermo-responsive steam trap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17441295A JP3381124B2 (en) | 1995-06-15 | 1995-06-15 | Thermo-responsive steam trap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH094790A true JPH094790A (en) | 1997-01-07 |
| JP3381124B2 JP3381124B2 (en) | 2003-02-24 |
Family
ID=15978109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17441295A Expired - Fee Related JP3381124B2 (en) | 1995-06-15 | 1995-06-15 | Thermo-responsive steam trap |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3381124B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011064228A (en) * | 2009-09-15 | 2011-03-31 | Tlv Co Ltd | Thermally reactive steam trap |
-
1995
- 1995-06-15 JP JP17441295A patent/JP3381124B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011064228A (en) * | 2009-09-15 | 2011-03-31 | Tlv Co Ltd | Thermally reactive steam trap |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3381124B2 (en) | 2003-02-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3381123B2 (en) | Thermo-responsive steam trap | |
| JP3381124B2 (en) | Thermo-responsive steam trap | |
| JP2835681B2 (en) | Thermo-responsive steam trap | |
| JPH09250690A (en) | Thermal reaction type steam trap | |
| JP3641048B2 (en) | Thermally responsive steam trap | |
| JPH0926091A (en) | Thermally-actuated steam trap | |
| JPH0926090A (en) | Thermally-actuated steam strap | |
| JP5269730B2 (en) | Thermally responsive steam trap | |
| JPH09196292A (en) | Thermally actuated steam trap | |
| JPH0926092A (en) | Thermally-actuated steam trap | |
| JPH09250691A (en) | Thermal reaction type steam trap | |
| JPH0926089A (en) | Thermally-actuated steam trap | |
| JPH084992A (en) | Thermally sensible steam trap | |
| JPH0926088A (en) | Thermally-actuated steam trap | |
| JPH112395A (en) | Thermally responding steam trap | |
| JPH10288296A (en) | Thermally responded steam trap | |
| JPH09303690A (en) | Thermally actuated steam trap | |
| JPH04219593A (en) | Thermal actuation type steam trap | |
| JP2745272B2 (en) | Thermo-responsive steam trap | |
| JPH1163390A (en) | Thermally actuated steam trap | |
| JP3862780B2 (en) | Thermally responsive steam trap | |
| JPH09250692A (en) | Thermal reaction type steam trap | |
| JP2741307B2 (en) | Thermo-responsive steam trap | |
| JPH09303689A (en) | Thermal reactive steam trap | |
| JP3484530B2 (en) | Thermo-responsive steam trap |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081220 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081220 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091220 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101220 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101220 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111220 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111220 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121220 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121220 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20131220 Year of fee payment: 11 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |