JPH0583790B2 - - Google Patents
Info
- Publication number
- JPH0583790B2 JPH0583790B2 JP60103034A JP10303485A JPH0583790B2 JP H0583790 B2 JPH0583790 B2 JP H0583790B2 JP 60103034 A JP60103034 A JP 60103034A JP 10303485 A JP10303485 A JP 10303485A JP H0583790 B2 JPH0583790 B2 JP H0583790B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- float
- valve seat
- reservoir chamber
- condensate reservoir
- 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
- 229910001096 P alloy Inorganic materials 0.000 claims description 7
- OFNHPGDEEMZPFG-UHFFFAOYSA-N phosphanylidynenickel Chemical compound [P].[Ni] OFNHPGDEEMZPFG-UHFFFAOYSA-N 0.000 claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 238000007772 electroless plating Methods 0.000 claims description 4
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 3
- 229910052731 fluorine Inorganic materials 0.000 claims description 3
- 239000011737 fluorine Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 description 6
- 238000007789 sealing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000007769 metal material Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000006903 response to temperature Effects 0.000 description 1
Landscapes
- Lift Valve (AREA)
- Laminated Bodies (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は球形のフロートの外表面が直接弁座に
離着座して弁口を開閉することによつて復水を自
動的に排出するようにしたフリーフロート式スチ
ームトラツプの弁部の構造に関し、特にステンレ
ス鋼で形成したフロートと弁座の弁部構造の改良
に関する。[Detailed Description of the Invention] Industrial Application Field The present invention allows the outer surface of a spherical float to sit directly on and off from a valve seat to open and close the valve port, thereby automatically discharging condensate. This invention relates to the structure of the valve part of a free float steam trap, and in particular to improvements in the structure of the valve part of a float and valve seat made of stainless steel.
フロートと弁座は流体の流通遮断を制御する部
分であり、摩耗が生じると完全シールできなくな
り、流体が漏れてしまう。 The float and valve seat are the parts that control the shutoff of fluid flow, and if they wear out, they will no longer be able to seal completely and fluid will leak.
特にフリーフロート式スチームトラツプにおい
ては、頻繁にフロートが弁座に離着座して開閉弁
を繰り返すので、特にフロートが弁座の一点を支
点にして回転しながら開閉弁を行うので、フロー
トと弁座が早期に摩耗する。 Particularly in free-float type steam traps, the float frequently moves to and from the valve seat and repeatedly opens and closes the valve. The seat wears out prematurely.
従来の技術
そこで、従来からフロートや弁座には耐摩耗性
を考慮してステンレス鋼等の金属材料を使用し、
焼き入れ処理して硬度を向上させることが行なわ
れている。Conventional technology Therefore, metal materials such as stainless steel have traditionally been used for floats and valve seats in consideration of their wear resistance.
Hardening treatment is performed to improve hardness.
本発明が解決しようとする課題
しかし、フロートと弁座を金属材料で形成した
ものでは、金属同志でシールするために、シール
面圧が高く、フロートと弁座のシール力が安定し
ない問題がある。Problems to be Solved by the Invention However, when the float and the valve seat are made of metal materials, there is a problem in that the sealing surface pressure is high and the sealing force between the float and the valve seat is unstable because the metals seal each other. .
また、フロートと弁座には流体中のゴミやスケ
ールが付着しやすく、フロートと弁座の間に噛み
込んで、完全シールできない問題がある。 Further, there is a problem in that dirt and scale in the fluid tend to adhere to the float and the valve seat, and they get caught between the float and the valve seat, preventing a complete seal.
本発明の技術的課題は、耐摩耗性を有すると共
に、シール面圧が低く、流体中のゴミやスケール
の付着しにくいフリーフロート式スチームトラツ
プの弁部構造を得ることである。 A technical object of the present invention is to obtain a valve structure for a free-floating steam trap that is wear resistant, has low sealing surface pressure, and is resistant to adhesion of dust and scale in the fluid.
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、弁ケーシングで流入口と復水
溜り室と流出口とを形成し、復水溜り室と流出口
とを連通する弁口を開けた弁座を復水溜り室の下
部側方に突出せしめて配置すると共に、弁室内に
球形のフロートを自由状態で配置し、フロートの
外表面が直接弁座に離着座して弁口を開閉するよ
うにしたフリーフロート式スチームトラツプであ
つて、フロートと弁座をステンレス鋼で形成した
ものにおいて、フロートと弁座の表面にニツケル
−りん合金の被膜を無電解めつき法により形成
し、ニツケル−りん合金被膜にふつ素樹脂を含浸
させ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 problems is to form an inlet, a condensate reservoir chamber, and an outlet with a valve casing, and to form a condensate reservoir chamber and an outlet. A valve seat with an open valve port that communicates with the outflow port is arranged to protrude from the lower side of the condensate storage chamber, and a spherical float is arranged in a free state inside the valve chamber, so that the outer surface of the float directly connects to the valve. A free-float type steam trap in which the valve port is opened and closed by sitting on and off the seat, and the float and valve seat are made of stainless steel.The surfaces of the float and valve seat are coated with a nickel-phosphorus alloy. It is characterized in that it is formed by an electroless plating method and the nickel-phosphorus alloy film is impregnated with a fluororesin.
作 用 上記の技術的手段の作用は下記の通りである。Effect The operation of the above technical means is as follows.
ステンレス鋼で形成したフロートと弁座の表面
にニツケル−りん合金の被膜を無電解めつき法に
より形成し、ニツケル−りん合金被膜にふつ素樹
脂を含浸させた、本発明の弁部は、ふつ素樹脂で
完全に表面が被覆されているので、頻繁にフロー
トが弁座に離着座して開閉弁を繰り返したりフロ
ートが弁座の一点を摺接しても、ふつ素樹脂の有
する抵摩擦係数により摩耗し難くなる。また、ふ
つ素樹脂の有する低面圧により、シール性能が向
上すると共に、流体中のゴムやスケールが付着す
ることがない。 The valve part of the present invention has a nickel-phosphorus alloy coating formed on the surfaces of the float and valve seat made of stainless steel by electroless plating, and the nickel-phosphorus alloy coating is impregnated with fluorine resin. The surface is completely coated with a base resin, so even if the float frequently moves on and off the valve seat and repeatedly opens and closes the valve, or the float slides into contact with one point on the valve seat, the friction coefficient of the base resin will prevent Less likely to wear out. In addition, the low surface pressure of the fluororesin improves sealing performance and prevents the adhesion of rubber and scale in the fluid.
発明の効果 本発明は下記の特有の効果を生じる。Effect of the invention The present invention produces the following unique effects.
従来のステンレス鋼を焼き入れ処理したもので
は硬度がマイクロビツカースで550程度であるが、
本発明では硬度を1000前後まで向上できる。 Conventional hardened stainless steel has a hardness of about 550 microbits,
According to the present invention, the hardness can be improved to around 1000.
ふつ素樹脂は耐食性に優れているので、使用可
能な流体の範囲を拡げることができる。 Fluorine resin has excellent corrosion resistance, so it can expand the range of usable fluids.
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。Example An example showing a specific example of the above technical means will be described.
本体１に蓋２をボルトで結合して弁ケーシング
を形成し、内部に復水溜り室３を形成する。復水
溜り室３の上部に流入口４を開口させる。流入口
４は円筒形状のスクリーン５を介して復水溜り室
３に連通する。流入口４と同一軸上に流出口６を
設ける。 A valve casing is formed by connecting a lid 2 to a main body 1 with bolts, and a condensate reservoir chamber 3 is formed inside. An inlet 4 is opened in the upper part of the condensate reservoir chamber 3. The inlet 4 communicates with the condensate reservoir chamber 3 via a cylindrical screen 5. An outlet 6 is provided on the same axis as the inlet 4.
本体１の下部に弁座７を取り付ける。弁座７は
外周に介在させたＯリング８で本体１との気密を
保ち、本体１にねじ結合するプラグ９で保持す
る。弁座７には復水溜り室３内端に開口する弁口
１０と軸方向の弁孔１１と立上り通路１２方向に
位置付けた通孔１３が形成されている。復水溜り
室３は弁座７の弁孔１１および通孔１３と立上り
通路１２を通して流出口６に連通している。 A valve seat 7 is attached to the lower part of the main body 1. The valve seat 7 is kept airtight with the main body 1 by an O-ring 8 interposed on its outer periphery, and is held by a plug 9 screwed to the main body 1. The valve seat 7 is formed with a valve port 10 opening at the inner end of the condensate reservoir chamber 3, a valve hole 11 in the axial direction, and a through hole 13 positioned in the direction of the rising passage 12. The condensate reservoir chamber 3 communicates with the outlet 6 through the valve hole 11 of the valve seat 7, the through hole 13, and the rising passage 12.
復水溜り室３内に中空で球形のフロート１４を
自由状態で収容する。復水溜り室３の上部にフロ
ート１４を保持するフロートカバー１５を取り付
ける。復水溜り室３の下部にフロート１４の降下
位置を決めるフロート座１６を形成する。 A hollow, spherical float 14 is housed in a free state in a condensate reservoir chamber 3. A float cover 15 for holding a float 14 is attached to the upper part of the condensate reservoir chamber 3. A float seat 16 for determining the lowering position of the float 14 is formed in the lower part of the condensate reservoir chamber 3.
蓋２の内面には環状壁１７を形成してスナツプ
リング１８を介して保持板１９を固定し、内部に
バイメタル室を形成してバイメタル板２１を配置
する。バイメタル板２１は温度変化に応じて湾曲
し、復水溜り室３と流出口６を連通する通路を開
閉する。 An annular wall 17 is formed on the inner surface of the lid 2, and a retaining plate 19 is fixed via a snap ring 18, and a bimetal chamber is formed inside, in which a bimetal plate 21 is arranged. The bimetal plate 21 curves in response to temperature changes to open and close a passage connecting the condensate reservoir chamber 3 and the outlet 6.
弁座７とフロート１４をステンレス鋼で形成
し、両者の外表面にニツケル−りん合金の被膜を
無電解めつき法により形成し、被膜にふつ素樹脂
を含浸させる。 The valve seat 7 and the float 14 are made of stainless steel, and a nickel-phosphorus alloy coating is formed on their outer surfaces by electroless plating, and the coating is impregnated with fluororesin.
第１図は本発明の実施例を示すフロート式スチ
ームトラツプの断面である。
１……本体、３……復水溜り室、４……流入
口、６……流出口、７……弁座、１０……弁口、
１１……弁孔、１４……フロート。
FIG. 1 is a cross-section of a float type steam trap showing an embodiment of the present invention. 1...Main body, 3...Condensate storage chamber, 4...Inflow port, 6...Outflow port, 7...Valve seat, 10...Valve port,
11... Valve hole, 14... Float.
Claims (1)
とを形成し、復水溜り室と流出口とを連通する弁
口を開けた弁座を復水溜り室の下部側方に突出せ
しめて配置すると共に、弁室内に球形のフロート
を自由状態で配置し、フロートの外表面が直接弁
座に離着座して弁口を開閉するようにしたフリー
フロート式スチームトラツプであつて、フロート
と弁座をステンレス鋼で形成したものにおいて、
フロートと弁座の表面にニツケル−りん合金の被
膜を無電解めつき法により形成し、ニツケル−り
ん合金被膜にふつ素樹脂を含浸させたことを特徴
とするフリーフロート式スチームトラツプの弁部
構造。1 The valve casing forms an inlet, a condensate reservoir chamber, and an outlet, and a valve seat with an open valve port that communicates the condensate reservoir chamber and the outlet is made to protrude from the lower side of the condensate reservoir chamber. This is a free-float type steam trap in which a spherical float is placed in a free state in the valve chamber, and the outer surface of the float directly sits on and off the valve seat to open and close the valve port. In valve seats made of stainless steel,
A valve part of a free float steam trap characterized by forming a nickel-phosphorus alloy coating on the surfaces of the float and valve seat by electroless plating, and impregnating the nickel-phosphorus alloy coating with fluorine resin. structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10303485A JPS61282673A (en) | 1985-05-15 | 1985-05-15 | Valve part structure of valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10303485A JPS61282673A (en) | 1985-05-15 | 1985-05-15 | Valve part structure of valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61282673A JPS61282673A (en) | 1986-12-12 |
| JPH0583790B2 true JPH0583790B2 (en) | 1993-11-29 |
Family
ID=14343375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10303485A Granted JPS61282673A (en) | 1985-05-15 | 1985-05-15 | Valve part structure of valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61282673A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0619919Y2 (en) * | 1988-09-12 | 1994-05-25 | 株式会社テイエルブイ | Float valve |
| JPH0240199U (en) * | 1988-09-12 | 1990-03-19 | ||
| JPH0280894A (en) * | 1988-09-14 | 1990-03-20 | Tlv Co Ltd | Float valve |
| JPH02102998A (en) * | 1988-10-11 | 1990-04-16 | Tlv Co Ltd | Float valve |
| JP4940853B2 (en) * | 2006-09-21 | 2012-05-30 | ダイキン工業株式会社 | Four-way switching valve for refrigerant |
| JP6000885B2 (en) * | 2013-03-25 | 2016-10-05 | サンコール株式会社 | Seal valve and manufacturing method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS573182B2 (en) * | 1973-08-08 | 1982-01-20 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5075118U (en) * | 1973-11-12 | 1975-07-01 | ||
| JPS573182U (en) * | 1980-06-09 | 1982-01-08 | ||
| JPS58186276U (en) * | 1982-06-08 | 1983-12-10 | 三菱重工業株式会社 | gate valve |
-
1985
- 1985-05-15 JP JP10303485A patent/JPS61282673A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS573182B2 (en) * | 1973-08-08 | 1982-01-20 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61282673A (en) | 1986-12-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |