JPH01182679A - Control valve with sticking matter eliminating device - Google Patents
Control valve with sticking matter eliminating deviceInfo
- Publication number
- JPH01182679A JPH01182679A JP630188A JP630188A JPH01182679A JP H01182679 A JPH01182679 A JP H01182679A JP 630188 A JP630188 A JP 630188A JP 630188 A JP630188 A JP 630188A JP H01182679 A JPH01182679 A JP H01182679A
- Authority
- JP
- Japan
- Prior art keywords
- plug
- valve
- control valve
- valve seat
- face
- 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
- 238000007790 scraping Methods 0.000 claims abstract description 11
- 230000000694 effects Effects 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 1
- LFYJSSARVMHQJB-QIXNEVBVSA-N bakuchiol Chemical compound CC(C)=CCC[C@@](C)(C=C)\C=C\C1=CC=C(O)C=C1 LFYJSSARVMHQJB-QIXNEVBVSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Sliding Valves (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はたとえば発電プラントの給水加熱器の流量を調
節する付着物除去機構付調節弁に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a control valve with a deposit removal mechanism for regulating the flow rate of a feed water heater of a power plant, for example.
従来この種の付着物除去機構付調節弁として特開昭６２
−１３２０７９号公報、特開昭５９−１５５６７５号公
報が知られている。Conventionally, this type of control valve with a deposit removal mechanism was developed in Japanese Patent Application Laid-Open No. 62
-132079 and JP-A-59-155675 are known.
第４図は従来構造例を示し、弁本体１内にプラグ２を上
下往復動可能に設け、弁本体１内に弁座３を固設し、弁
本体ｌのプラグ２側面側に流入口４を形成するとともに
プラグ２端部側に流出口５を形成し、プラグ着座部６と
弁座部７とを密着可能に設け、かつプラグガイド８にス
クレーパリング９を固定し、しかして図外の外部操作機
構によりプラグ２を上下動し、弁座３との間の開口面積
を増減することにより通過流量を制御可能に設けるとと
もにプラグ着座部６を弁座部７とにより弁閉可能に設け
、かつスクレーパリング９によりプラグ３上昇時、プラ
グ２外周面に付着した酸化スケール等の付着物Ｗをはぎ
とり弁開閉動作を良好にし得るように構成されている。FIG. 4 shows an example of a conventional structure, in which a plug 2 is provided inside the valve body 1 so as to be able to move vertically and reciprocally, a valve seat 3 is fixedly installed inside the valve body 1, and an inlet 4 is provided on the side surface of the plug 2 of the valve body 1. At the same time, an outflow port 5 is formed on the end side of the plug 2, the plug seating part 6 and the valve seat part 7 are provided so that they can be brought into close contact with each other, and a scraper ring 9 is fixed to the plug guide 8. The plug 2 is moved up and down by an external operating mechanism, and the passage flow rate can be controlled by increasing or decreasing the opening area between it and the valve seat 3, and the plug seating part 6 is provided so that the valve can be closed by the valve seat part 7. Furthermore, when the plug 3 is raised, the scraper ring 9 is configured to scrape off deposits W such as oxide scale attached to the outer circumferential surface of the plug 2, thereby improving the valve opening/closing operation.
しかしながら上記調節弁において弁本体１のプラグ２端
面側を流入口４とするとともにプラグ２側面側を流出口
５として用いる場合付着物Ｗはプラグ２外周面よりもプ
ラグ２端面に付着堆積し、この付着物Ｗを除去できずに
流路の閉塞が進行し、成虫制御に支障をきたすという不
都合を有している。However, in the above control valve, when the end surface of the plug 2 of the valve body 1 is used as the inlet 4 and the side surface of the plug 2 is used as the outlet 5, the deposits W adhere and accumulate on the end surface of the plug 2 rather than on the outer peripheral surface of the plug 2. This has the disadvantage that the adhered matter W cannot be removed and the flow path becomes blocked, which impedes control of adult insects.
本発明はこれらの不都合を解消することを特徴とするも
ので、その要旨は、弁本体内にプラグを往復動可能に設
けるとともに弁本体内に弁座を固設し、弁本体のプラグ
端部側に流入口を形成するとともにプラグ側面側に流出
口を形成してなる調節弁において、上記プラグを軸回り
回動可能に設け、かつ」二足弁座の内側にプラグ端面に
摺接可能な掻落凸部を設けて構成したことを特徴とする
付着物除去機構付調節弁にある。The present invention is characterized by solving these inconveniences, and its gist is that a plug is provided within the valve body so as to be movable back and forth, and a valve seat is fixed within the valve body, so that the end of the plug of the valve body A control valve in which an inlet is formed on the side and an outlet is formed on the side of the plug, wherein the plug is rotatable around an axis, and the end surface of the plug is slidable on the inside of the two-legged valve seat. A control valve with a deposit removal mechanism is characterized in that it is configured with a scraping convex portion.
掻落凸部がプラグ端面に摺接している状態でプラグを軸
回り回動するとプラグ端面の付着物は掻落凸部との摺接
作用により掻き落とされる。When the plug is rotated around the axis with the scraping protrusion in sliding contact with the end face of the plug, deposits on the end face of the plug are scraped off by the sliding action of the scraping protrusion.
第１図乃至第３図は本発明の実施例を示している。 1 to 3 show embodiments of the invention.
尚、面記第４図の従来構造と同一態様部分には同符号を
付して説明する。Incidentally, the same reference numerals are attached to the same parts as the conventional structure shown in FIG. 4 for explanation.
１０は掻落凸部であって、この場合弁座３の内側１１に
上面をプラグ２の端面に合わ仕た弧状凹面を有する十字
リブ状に突出形成されている。Reference numeral 10 denotes a scraping convex portion, which in this case is formed protrudingly on the inner side 11 of the valve seat 3 in the shape of a cross rib having an arcuate concave surface whose upper surface is aligned with the end surface of the plug 2.
またこの場合プラグ２を軸回り回動するためにプラグ２
の上端部にスパナ掛は戎を形成している。In addition, in this case, in order to rotate the plug 2 around the axis, the plug 2
The spanner hook forms a hook at the upper end.
この実施例は上記構成であるから、プラグ２を下降して
プラグ２端而と掻落凸部１０とを摺接状態にしてプラグ
２をスパナ等により軸回り回動することＪこよりプラグ
２端面の付着物Ｗを掻落とすことができ、弁の耐久性を
向上できる。Since this embodiment has the above-mentioned configuration, the plug 2 is lowered, the end of the plug 2 and the scraping convex portion 10 are in sliding contact, and the plug 2 is rotated around the axis using a spanner or the like. The deposits W can be scraped off and the durability of the valve can be improved.
尚、上記実施例の掻落凸部１０の形状はプラグ２に応じ
て設は変更されるであろう。Note that the shape of the scraping convex portion 10 in the above embodiment may be changed depending on the plug 2.
本発明は上述の如く、プラグを下降してプラグ端面と掻
落凸部とを摺接状態にしてプラグを軸回り回動すること
によりプラグ端面の付着物を掻落とすことができ、弁の
耐久性を向上できる。As described above, the present invention makes it possible to scrape off deposits on the end face of the plug by lowering the plug and rotating the plug around its axis with the end face of the plug in sliding contact with the scraping convex portion, thereby increasing the durability of the valve. can be improved.
以上、所期の目的を充分達成することができる。As described above, the intended purpose can be fully achieved.
図面は本発明の一実施例を示すもので、第１図は断面図
、第２図はその部分平断面図、第３図はその分解斜視図
、第４図は従来構造の断面図である。
１・・・弁本体、２・・・プラグ、３・・・弁座、４・
・・流入口、５・・・流出口、１０・・・掻落凸部、１
１・・・内側。
昭和６３年１月１４日
出願人 二イガタ・メーソンネーラン株式会社発明
者 千 葉 部
同 佐 藤 孝 大同
宮 島 晴 雄ハ／４カ
Ａ ｚ瀕
さフ剣
〃
４ｔａThe drawings show one embodiment of the present invention; FIG. 1 is a sectional view, FIG. 2 is a partial plan sectional view thereof, FIG. 3 is an exploded perspective view thereof, and FIG. 4 is a sectional view of a conventional structure. . 1... Valve body, 2... Plug, 3... Valve seat, 4...
... Inlet, 5... Outlet, 10... Scraping convex portion, 1
1...Inside. January 14, 1988 Applicant Niigata Mason Neeran Co., Ltd. Inventor Chiba Department Takashi Sato Daido
Haru Miyajima Yuha/4ka z On the verge of sword 4ta
Claims (1)
内に弁座を固設し、弁本体のプラグ端部側に流入口を形
成するとともにプラグ側面側に流出口を形成してなる調
節弁において、上記プラグを軸回り回動可能に設け、か
つ上記弁座の内側にプラグ端面に摺接可能な掻落凸部を
設けて構成したことを特徴とする付着物除去機構付調節
弁。A control valve in which a plug is reciprocally movable within the valve body, a valve seat is fixed within the valve body, an inlet is formed on the end of the plug of the valve body, and an outlet is formed on the side of the plug. A control valve with a deposit removal mechanism, characterized in that the plug is rotatable about an axis, and a scraping convex portion is provided on the inside of the valve seat so as to be able to come into sliding contact with the end face of the plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP630188A JPH01182679A (en) | 1988-01-13 | 1988-01-13 | Control valve with sticking matter eliminating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP630188A JPH01182679A (en) | 1988-01-13 | 1988-01-13 | Control valve with sticking matter eliminating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01182679A true JPH01182679A (en) | 1989-07-20 |
Family
ID=11634552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP630188A Pending JPH01182679A (en) | 1988-01-13 | 1988-01-13 | Control valve with sticking matter eliminating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01182679A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003016757A1 (en) | 2001-08-17 | 2003-02-27 | Mahle Metal Leve S.A. | Piston for an internal combustion engine |
-
1988
- 1988-01-13 JP JP630188A patent/JPH01182679A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003016757A1 (en) | 2001-08-17 | 2003-02-27 | Mahle Metal Leve S.A. | Piston for an internal combustion engine |
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