JPH04219593A - Thermal actuation type steam trap - Google Patents
Thermal actuation type steam trapInfo
- Publication number
- JPH04219593A JPH04219593A JP41091990A JP41091990A JPH04219593A JP H04219593 A JPH04219593 A JP H04219593A JP 41091990 A JP41091990 A JP 41091990A JP 41091990 A JP41091990 A JP 41091990A JP H04219593 A JPH04219593 A JP H04219593A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valve port
- diaphragm
- temperature
- expansion medium
- 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
- 239000000428 dust Substances 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 2
- 230000005494 condensation Effects 0.000 abstract 3
- 238000009833 condensation Methods 0.000 abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000009835 boiling Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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、弁室内に流入する復水で加熱冷却され
てその温度に応じて変形する感温応動素子を備え、感温
応動素子の変形作用で弁手段を駆動し、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。[Industrial Application Field] The present invention relates to a steam trap that automatically discharges condensate generated in various steam-using equipment and steam piping, and in particular, the present invention relates to a steam trap that automatically discharges condensate generated in various steam-using equipment and steam piping. The present invention relates to a heat-responsive steam trap that is equipped with a temperature-sensitive element that deforms accordingly, and that drives a valve means by the deformation action of the temperature-sensitive element to discharge condensate below a desired temperature to the outside of the system.
【０００２】0002
【従来の技術】従来の熱応動式スチ―ムトラップを特公
昭６０−４６３１８号公報を参照して説明する。これは
、感温応動素子に膨脹媒体を用いたもので、弁ケ―シン
グで入口と弁室と出口を形成し、弁室と出口を弁口で連
結し、皿状壁部材をケ―シングに固定し、皿状壁部材に
ダイヤフラムを取り付け、皿状壁部材とダイヤフラムの
間に膨脹媒体を封入したもので、膨脹媒体の膨脹収縮作
用でダイヤフラムを駆動して、弁口を開閉するようにし
たものである。膨脹媒体には水及び水よりも沸点の低い
流体との混合物が用いられる。2. Description of the Related Art A conventional thermally responsive steam trap will be explained with reference to Japanese Patent Publication No. 60-46318. This uses an expansion medium in the temperature-sensitive element.The valve casing forms an inlet, a valve chamber, and an outlet.The valve chamber and outlet are connected by a valve opening.The dish-shaped wall member is attached to the casing. A diaphragm is attached to a dish-shaped wall member, and an expansion medium is sealed between the dish-shaped wall member and the diaphragm.The expansion and contraction action of the expansion medium drives the diaphragm to open and close the valve port. This is what I did. The expansion medium used is water and a mixture with a fluid having a lower boiling point than water.
【０００３】弁室内に所望温度以上の復水が流入してく
ると膨脹媒体は膨脹し、ダイヤフラム部材を変位せしめ
て弁口を閉止して蒸気の排出を防止する。弁室内の復水
の温度が低下すると膨脹媒体は収縮し、ダイヤフラムを
弁口から離座せしめて弁口を開け、所望温度以下の復水
を系外に排出する。When condensate at a temperature higher than a desired temperature flows into the valve chamber, the expansion medium expands, displacing the diaphragm member and closing the valve port to prevent steam from being discharged. When the temperature of the condensate in the valve chamber decreases, the expansion medium contracts, causing the diaphragm to separate from the valve port, opening the valve port, and discharging condensate below a desired temperature to the outside of the system.
【０００４】0004
【発明が解決しようとする課題】上記の熱応動式スチ―
ムトラップの膨脹媒体は、水よりも十数度低い温度の沸
点を有するように形成され、排出すべき復水の温度が蒸
気の飽和温度よりも数度低い温度で開弁するように設計
される。これは、弁室内に流入する復水の温度と膨脹媒
体の温度には、伝達による時間的なずれがあるので、膨
脹媒体が蒸気の飽和温度で膨脹し、閉弁するように設計
すると、蒸気を漏洩してしまうためである。[Problem to be solved by the invention] The above thermally responsive steel
The expansion medium of the Mutrap is formed to have a boiling point several dozen degrees lower than that of water, and the valve is designed to open when the temperature of the condensate to be discharged is several degrees lower than the saturation temperature of steam. . This is because there is a time lag between the temperature of the condensate flowing into the valve chamber and the temperature of the expansion medium due to transmission, so if the expansion medium is designed to expand at the saturation temperature of steam and close the valve, This is because the data will be leaked.
【０００５】しかしながら、上記のものでは、ゴミやス
ケ―ル等が弁部に噛み込むと完全閉弁できず、蒸気を漏
洩する問題がある。また、この場合、膨脹媒体が過度に
加熱されるので、これを防止する必要がある。However, in the above-mentioned valve, there is a problem that if dust or scale gets caught in the valve part, the valve cannot be completely closed and steam leaks. Also, in this case, the expansion medium will be heated excessively, which must be prevented.
【０００６】従って本発明の技術的課題は、蒸気漏洩が
生じないようにして、膨脹媒体が過度に加熱されないよ
うにすることである。[0006] The technical problem of the invention is therefore to prevent steam leakage from occurring and to prevent the expansion medium from being heated too much.
【０００７】[0007]
【課題を解決する為の手段】上記の技術的課題を解決す
る為に講じた本発明の技術的手段は、弁ケ―シングで入
口と弁室と出口を形成し、入口と弁室を第１弁口で連結
し、弁室と出口を第２弁口で連結し、２枚のダイヤフラ
ムを重ねてその外周を弁ケ―シングに固定し、両ダイヤ
フラムの間に膨脹媒体を封入し、一方のダイヤフラムで
第１弁口を、他方のダイヤフラムで第２弁口を開閉する
ようにしたものである。[Means for Solving the Problems] The technical means of the present invention taken to solve the above technical problems is to form an inlet, a valve chamber, and an outlet in a valve casing, and to connect the inlet and the valve chamber to a second valve chamber. The valve chamber and the outlet are connected by a second valve port, two diaphragms are overlapped and their outer peripheries are fixed to the valve casing, and an expansion medium is sealed between both diaphragms. One diaphragm opens and closes the first valve port, and the other diaphragm opens and closes the second valve port.
【０００８】[0008]
【作用】上記の技術的手段の作用は下記の通りである。
２枚のダイヤフラムの間に封入した膨脹媒体は、入口か
ら流入する復水の温度が高い場合には膨脹し、２枚のダ
イヤフラムのそれぞれを対向する第１弁口と第２弁口に
向けて変位せしめる。このとき、第１弁口は入口に、第
２弁口は出口に連通しているので、先ず、第２弁口のみ
が対向する一方のダイヤフラムで閉止される。[Operation] The operation of the above technical means is as follows. The expansion medium sealed between the two diaphragms expands when the temperature of the condensate flowing in from the inlet is high, and directs each of the two diaphragms toward the first and second valve ports facing each other. Displace it. At this time, since the first valve port communicates with the inlet and the second valve port communicates with the outlet, first, only the second valve port is closed by one of the opposing diaphragms.
【０００９】ゴミやスケ―ル等が一方のダイヤフラムと
第２弁口との間に挟まり、完全閉弁できないと、膨脹媒
体はさらに加熱されて膨脹し、他方のダイヤフラムをさ
らに第１弁口に向けて変位せしめ、第１弁口を閉止する
。従って、蒸気漏洩は生じず、膨脹媒体が過度に加熱さ
れることもない。If dust, scale, etc. get caught between one diaphragm and the second valve port and the valve cannot be completely closed, the expansion medium is further heated and expands, and the other diaphragm is further inserted into the first valve port. and close the first valve port. Therefore, no steam leakage occurs and no excessive heating of the expansion medium occurs.
【００１０】0010
【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（第１図参照）。上ケ―シング１と下ケ―シング
２をボルト（図示せず）で締結して、内部に弁室３を有
する弁ケ―シングを形成する。両ケ―シング１、２は互
いに対称である。上ケ―シング１の上部に入口４を、下
ケ―シング２の下部に出口５を形成する。[Embodiment] An embodiment illustrating a specific example of the above technical means will be described (see FIG. 1). An upper casing 1 and a lower casing 2 are fastened together with bolts (not shown) to form a valve casing having a valve chamber 3 therein. Both casings 1, 2 are symmetrical to each other. An inlet 4 is formed in the upper part of the upper casing 1, and an outlet 5 is formed in the lower part of the lower casing 2.
【００１１】入口４の弁室３側開口端に第１弁口６を形
成し、第１弁口６を介して入口４と弁室３を連通せしめ
る。出口５の弁室３側開口端に第２弁口７を形成し、第
２弁口を介して弁室３と出口５を連通せしめる。A first valve port 6 is formed at the opening end of the inlet 4 on the valve chamber 3 side, and the inlet 4 and the valve chamber 3 are communicated through the first valve port 6. A second valve port 7 is formed at the opening end of the outlet 5 on the valve chamber 3 side, and the valve chamber 3 and the outlet 5 are communicated through the second valve port.
【００１２】膨脹媒体８を封入した上ダイヤフラム９と
下ダイヤフラム１０を、その外周で溶接する（参照番号
１１の箇所）。ダイヤフラム９、１０をケ―シング１、
２の間に挟んで固定する。膨脹媒体８は水及び水より沸
点の低い流体との混合物で形成する。ダイヤフラム９、
１０で仕切られた弁室３は連通路１２と１３を介して連
通せしめられる。[0012] The upper diaphragm 9 and the lower diaphragm 10 containing the expansion medium 8 are welded at their outer peripheries (point 11). Diaphragms 9 and 10 are connected to casing 1,
Secure it by sandwiching it between 2. The expansion medium 8 is formed of a mixture of water and a fluid with a lower boiling point than water. diaphragm 9,
The valve chamber 3 partitioned by 10 is communicated with each other via communication passages 12 and 13.
【００１３】入口４から弁室３に流入する復水の温度が
高い場合、膨脹媒体８は膨脹し、上ダイヤフラム９を上
方に、下ダイヤフラム１０を下方に変位せしめる。そし
て、下ダイヤフラム１０が第２弁口７に着座して閉止し
、所望温度で復水の流出を止める。When the temperature of the condensate flowing into the valve chamber 3 from the inlet 4 is high, the expansion medium 8 expands and displaces the upper diaphragm 9 upward and the lower diaphragm 10 downward. Then, the lower diaphragm 10 seats on the second valve port 7 and closes, stopping the outflow of condensate at a desired temperature.
【００１４】このとき、ゴミやスケ―ルが下ダイヤフラ
ム１０と第２弁口７の間に挟まり、完全閉弁できないと
、膨脹媒体８はさらに加熱されて膨脹し、上ダイヤフラ
ム９をさらに上方に変位せしめる。そして、上ダイヤフ
ラム９が第１弁口６に着座して閉止し、所望温度よりも
僅かに高い温度で復水の流出を止める。At this time, if dust or scale gets caught between the lower diaphragm 10 and the second valve port 7 and the valve cannot be completely closed, the expansion medium 8 is further heated and expanded, pushing the upper diaphragm 9 further upward. Displace it. The upper diaphragm 9 then seats on the first valve port 6 and closes, stopping the outflow of condensate at a temperature slightly higher than the desired temperature.
【００１５】弁室３の復水の温度低下と共に膨脹媒体８
は収縮して上ダイヤフラム９を第１弁口６から、下ダイ
ヤフラム１０を第２弁口７から離座せしめる。入口４か
らの低温復水は第１弁口６から連通路１２と１３を通っ
て、第２弁口７から出口に排出される。As the temperature of the condensate in the valve chamber 3 decreases, the expansion medium 8
is contracted to displace the upper diaphragm 9 from the first valve port 6 and the lower diaphragm 10 from the second valve port 7. The low temperature condensate from the inlet 4 passes through the communication passages 12 and 13 from the first valve port 6 and is discharged from the second valve port 7 to the outlet.
【００１６】[0016]
【発明の効果】本発明は下記の特有の効果を生じる。上
記のように本発明では、２つの弁口を設け、それぞれの
弁口を開閉するようにしたので、２段にシ―ルすること
ができる。従って、蒸気漏れが生じることがなく、膨脹
媒体が過度に加熱されることもない。[Effects of the Invention] The present invention produces the following unique effects. As described above, in the present invention, two valve ports are provided and each valve port is opened and closed, so that sealing can be achieved in two stages. Therefore, no steam leakage occurs and no excessive heating of the expansion medium occurs.
【図１】本発明の実施例の熱応動式スチ―ムトラップの
断面図である。FIG. 1 is a sectional view of a thermally responsive steam trap according to an embodiment of the present invention.
１ 上ケ―シング ２ 下ケ―シング ３ 弁室 ４ 入口 ５ 出口 ６ 第１弁口 ７ 第２弁口 ８ 膨脹媒体 ９ 上ダイヤフラム １０ 下ダイヤフラム 1 Upper casing 2 Lower casing 3 Valve chamber 4 Entrance 5 Exit 6 First valve 7 Second valve 8. Expansion medium 9 Upper diaphragm 10 Lower diaphragm
Claims (1)
成し、入口と弁室を第１弁口で連結し、弁室と出口を第
２弁口で連結し、２枚のダイヤフラムを重ねてその外周
を弁ケ―シングに固定し、両ダイヤフラムの間に膨脹媒
体を封入し、一方のダイヤフラムで第１弁口を、他方の
ダイヤフラムで第２弁口を開閉するようにした熱応動式
スチ―ムトラップ。[Claim 1] A valve casing forms an inlet, a valve chamber, and an outlet, the inlet and the valve chamber are connected by a first valve port, the valve chamber and the outlet are connected by a second valve port, and two diaphragms are connected. are stacked and their outer peripheries are fixed to the valve casing, an expansion medium is sealed between both diaphragms, and one diaphragm opens and closes the first valve port, and the other diaphragm opens and closes the second valve port. Response type steam trap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2410919A JP2761673B2 (en) | 1990-12-14 | 1990-12-14 | Thermo-responsive steam trap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2410919A JP2761673B2 (en) | 1990-12-14 | 1990-12-14 | Thermo-responsive steam trap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04219593A true JPH04219593A (en) | 1992-08-10 |
| JP2761673B2 JP2761673B2 (en) | 1998-06-04 |
Family
ID=18520004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2410919A Expired - Fee Related JP2761673B2 (en) | 1990-12-14 | 1990-12-14 | Thermo-responsive steam trap |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2761673B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4849424A (en) * | 1986-08-05 | 1989-07-18 | Nissin Shokuhin Kabushiki Kaisha | Pyrimidine derivatives |
| WO2006078225A2 (en) * | 2005-01-19 | 2006-07-27 | Peter Horecky | Condensate separator with double -membrane thermal element |
-
1990
- 1990-12-14 JP JP2410919A patent/JP2761673B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4849424A (en) * | 1986-08-05 | 1989-07-18 | Nissin Shokuhin Kabushiki Kaisha | Pyrimidine derivatives |
| WO2006078225A2 (en) * | 2005-01-19 | 2006-07-27 | Peter Horecky | Condensate separator with double -membrane thermal element |
| WO2006078225A3 (en) * | 2005-01-19 | 2006-09-21 | Peter Horecky | Condensate separator with double -membrane thermal element |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2761673B2 (en) | 1998-06-04 |
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| Date | Code | Title | Description |
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