JPH0514741U - Multi-stage pressure reducing flow control valve - Google Patents
Multi-stage pressure reducing flow control valveInfo
- Publication number
- JPH0514741U JPH0514741U JP40242290U JP40242290U JPH0514741U JP H0514741 U JPH0514741 U JP H0514741U JP 40242290 U JP40242290 U JP 40242290U JP 40242290 U JP40242290 U JP 40242290U JP H0514741 U JPH0514741 U JP H0514741U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valve seat
- flow control
- control valve
- frusto
- 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.)
- Withdrawn
Links
Landscapes
- Lift Valve (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
(57)【要約】
【目的】 多段弁体と弁座との組立ての簡易化を図っ
た。
【構成】 弁座１を順次径を縮小する截頭円錐状に形成
する。この截頭円錐状の弁座１との間に環状の絞り流路
を作る円板状の弁体の複数個２ａ，２ｂ…を弁軸３のボ
ス３ａに一定の間隔を存して多段に設置したことを特徴
としている。
(57) [Summary] [Purpose] The assembly of the multistage valve body and valve seat was simplified. [Structure] The valve seat 1 is formed in a frustoconical shape whose diameter is successively reduced. A plurality of disc-shaped valve bodies 2a, 2b, ... Forming an annular throttle channel with the frusto-conical valve seat 1 are provided in multiple stages on the boss 3a of the valve shaft 3 with a constant interval. It is characterized by being installed.
Description
【０００１】[0001]
本考案は一段の弁ではキャビテーション発生のため適用できないような高差圧 条件下で使用する多段式減圧流量調節弁に関する。 The present invention relates to a multi-stage depressurization flow control valve used under a high differential pressure condition that cannot be applied to a single-stage valve due to cavitation.
【０００２】[0002]
従来のこの種調節弁を図３に基づいて説明する。図は２段式のものであるが、 二つの弁体２ａ，２ｂは１本の弁軸３で連結し、これと対応する二つの弁座１ａ ，１ｂとの間隙（開度）を同時に加減できる構造になっている。 そして弁体２ａ，２ｂは弁座１ａ，１ｂを通り抜けることは出来ないので弁軸 ３に組立て可能な着脱構造となっていると共に弁座１ａ，１ｂを組込めるように 弁箱も、４ａ，４ｂ，４ｃと分割構造とし、又、弁体と隣接段の弁座の間には開 閉操作のため弁体を移動できる空間を設け、更に弁軸が流体力により振動しない ように弁軸支持用のスリーブ５およびリブ６を設けている。 A conventional control valve of this type will be described with reference to FIG. Although the figure shows a two-stage type, two valve bodies 2a and 2b are connected by one valve shaft 3 and the clearance (opening) between the two valve seats 1a and 1b corresponding to this is adjusted at the same time. It has a structure that allows it. Since the valve bodies 2a and 2b cannot pass through the valve seats 1a and 1b, they have a detachable structure that can be assembled to the valve shaft 3, and the valve housings 4a and 4b can be assembled with the valve seats 1a and 1b. , 4c and a split structure, and a space for moving the valve body for opening and closing is provided between the valve body and the valve seat of the adjacent stage, and for supporting the valve shaft so that the valve shaft does not vibrate due to fluid force. The sleeve 5 and the rib 6 are provided.
【０００３】[0003]
上述した従来の多段式減圧流量調節弁では弁体と弁軸とが一体成形できないと 共に弁箱は弁体と弁座とを交互に組めるようになっているため構造が複雑になり 、又流量制御精度を向上させるため弁のストロークを長く取ろうとすると全段の 弁体，弁座間の距離を大きくとらなければならず弁全長が長くなり、更に全開時 でも残存抵抗が大きいので流量制御範囲が制約される等の欠点を有していた。 本考案はかかる問題点に対処するため開発されたものであって弁座と弁体との 組立てを容易にすることを目的とする。 In the conventional multi-stage depressurization flow control valve described above, the valve body and the valve shaft cannot be integrally formed, and the valve body and the valve seat can be assembled alternately and the structure becomes complicated. If the stroke of the valve is to be long in order to improve control accuracy, the distance between the valve bodies and valve seats of all stages must be made large, and the overall valve length becomes long. It had drawbacks such as being restricted. The present invention was developed to address such problems and aims to facilitate the assembly of the valve seat and the valve body.
【０００４】[0004]
上記の目的を達成するための本考案の構成を実施例に対応する図１及び図２を 用いて説明すると本考案は弁座１を順次径を縮小する截頭円錐状に形成し、該截 頭円錐状の弁座１との間に環状の絞り流路を作る円板状の弁体の複数個２ａ，２ ｂ…を弁軸３のボス３ａに一定間隔を存して多段に設置したことを特徴とする。 The structure of the present invention for achieving the above object will be described with reference to FIGS. 1 and 2 corresponding to an embodiment. The present invention forms the valve seat 1 in a frusto-conical shape in which the diameter is gradually reduced, and A plurality of disc-shaped valve bodies 2a, 2b, ... Forming an annular throttle channel between the head-conical valve seat 1 and the head-conical valve seat 1 are installed on the boss 3a of the valve shaft 3 in multiple stages at regular intervals. It is characterized by
【０００５】[0005]
そして本考案は上記の手段により複数の弁体は弁軸に一体に組付けることがで き、又弁軸と一体の弁体は、截頭円錐状の弁座に対して、その挿脱が容易となっ て組立てが簡単となると共に弁体を軸方向に移動させることによって、弁座との 間隙の大きさを連動して変化し流量調節できる。 Further, according to the present invention, a plurality of valve bodies can be integrally assembled with the valve shaft by the above means, and the valve body integrated with the valve shaft can be easily inserted into and removed from the frustoconical valve seat. As a result, the assembly is simple, and by moving the valve element in the axial direction, the size of the gap with the valve seat can be changed in conjunction to adjust the flow rate.
【０００６】[0006]
以下本考案の一実施例を図１に基づいて説明すると１は弁座を示し該弁座１は 順次径を縮小する截頭円錐状に形成し、該截頭円錐状の弁座１との間に環状の絞 り流路を作る円板状の弁体２の複数個２ａ，２ｂ，２ｃ…を弁軸３のボス３ａに 一定の間隔を存して多段に設置し、図示のものでは弁座１は流入側から流出側に 向って径を縮小させて締り勝手に形成させた。図中４は弁箱、６は弁体格納室、 ７は弁軸格納室を示す。 An embodiment of the present invention will be described below with reference to FIG. 1. Reference numeral 1 denotes a valve seat, and the valve seat 1 is formed in a frusto-conical shape whose diameter is gradually reduced. A plurality of disc-shaped valve bodies 2 a, 2b, 2c, etc., which form an annular constricted flow path, are installed on the boss 3a of the valve shaft 3 in multiple stages at regular intervals. The diameter of the valve seat 1 was reduced from the inflow side to the outflow side, and the valve seat 1 was formed freely. In the figure, 4 is a valve box, 6 is a valve body storage chamber, and 7 is a valve shaft storage chamber.
【０００７】 図２は本考案の他の実施例を示すもので弁座１は流入側から流出側に向って径 を拡大させて開き勝手に形成させた。 かくて弁座１と弁体２ａ，２ｂ…との間にできる環状間隙が多段絞り部を形成 し、弁体を軸方向に移動させることによってこの間隙の大きさを連動して変化し 流量調節ができ、更に截頭円錐状のテーパーを小さく設定すればストロークに対 し弁開度がゆるやかに変化するので精度よく流量制御ができる。FIG. 2 shows another embodiment of the present invention, in which the valve seat 1 is formed in such a manner that the diameter is enlarged from the inflow side to the outflow side and the valve seat 1 is opened. Thus, the annular gap formed between the valve seat 1 and the valve bodies 2a, 2b ... forms a multi-stage throttle portion, and by moving the valve body in the axial direction, the size of this gap is changed in conjunction with the flow rate adjustment. In addition, if the frustoconical taper is set to a small value, the valve opening gradually changes with the stroke so that the flow rate can be controlled accurately.
【０００８】[0008]
このように本考案によるときは弁座を順次径を縮小する截頭円錐状に形成し、 該截頭円錐状の弁座との間に環状の絞り流路を作る円板状の弁体の複数個を弁軸 のボス部に一定の間隔を存して多段に設置したものであるから次のような効果が 得られる。 （１）構造簡単となりコスト安。保守容易となる。多段弁体，多段弁座がそれぞ れ一体成形品で構成できるので部品数が少なくてすむ。弁箱を２分割するだけで 組立可能。 （２）弁装置の長さを小さくできる。弁体間隔はストロークと関係なく設定でき るので短かい間隔で弁体を配列できる。 （３）流量制御精度を高くとれる。截頭円錐状のテーパーを小さく設定すれば弁 開度に対するストロークを大きくとれる。 （４）全開時の抵抗を極めて小さくできる。弁体を弁座部から引抜けるので、弁 体格納室を設ければ全開時弁内はスムースな流路が得られる。 As described above, according to the present invention, the valve seat is formed in a frusto-conical shape in which the diameter is gradually reduced, and a disc-shaped valve body that forms an annular throttle channel between the valve seat and the frusto-conical valve seat is formed. The following effects are obtained because a plurality of valves are installed in multiple stages on the boss portion of the valve shaft with a certain space. (1) The structure is simple and the cost is low. Easy to maintain. Since the multi-stage valve body and multi-stage valve seat can be configured as an integrally molded product, respectively, the number of parts can be reduced. Can be assembled simply by dividing the valve box into two. (2) The length of the valve device can be reduced. Since the valve disc spacing can be set independently of the stroke, the valve discs can be arranged at short intervals. (3) The flow rate control accuracy can be high. If the frustoconical taper is set to a small value, the stroke for the valve opening can be increased. (4) The resistance when fully opened can be made extremely small. Since the valve element can be pulled out from the valve seat part, a smooth flow path can be obtained inside the valve when the valve element storage chamber is provided.
【図１】本考案の一実施例を示す断面図である。FIG. 1 is a sectional view showing an embodiment of the present invention.
【図２】本考案の他の実施例を示す断面図である。FIG. 2 is a cross-sectional view showing another embodiment of the present invention.
【図３】従来例を示す断面図である。FIG. 3 is a cross-sectional view showing a conventional example.
１ 弁座 ２ａ 弁体 ２ｂ 弁体 ３ 弁軸 ３ａ ボス 1 valve seat 2a valve body 2b valve body 3 valve shaft 3a boss
Claims (1)
成し該截頭円錐状の弁座との間に環状の絞り流路を作る
円板状の弁体の複数個を弁軸のボスに一定の間隔を存し
て多段に設置したことを特徴とする多段式減圧流量調節
弁。1. A plurality of disc-shaped valve bodies, each of which has a frusto-conical shape in which the diameter of the valve seat is gradually reduced and forms an annular throttle passage between the valve seat and the frusto-conical valve seat. A multi-stage depressurization flow control valve characterized by being installed in multiple stages on the boss of the shaft with a certain interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP40242290U JPH0514741U (en) | 1990-12-27 | 1990-12-27 | Multi-stage pressure reducing flow control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP40242290U JPH0514741U (en) | 1990-12-27 | 1990-12-27 | Multi-stage pressure reducing flow control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0514741U true JPH0514741U (en) | 1993-02-26 |
Family
ID=18512243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP40242290U Withdrawn JPH0514741U (en) | 1990-12-27 | 1990-12-27 | Multi-stage pressure reducing flow control valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0514741U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003056723A (en) * | 2001-08-09 | 2003-02-26 | Yoshitake Inc | Valve element structure of double-seated valve |
| WO2007055370A1 (en) * | 2005-11-14 | 2007-05-18 | Ham-Let Motoyama Japan Ltd. | Fluid control unit, pressure control valve, and pressure control method |
| KR101124311B1 (en) * | 2008-04-21 | 2012-03-27 | 에스엠씨 가부시키 가이샤 | Throttling structure for use in a fluid pressure device |
-
1990
- 1990-12-27 JP JP40242290U patent/JPH0514741U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003056723A (en) * | 2001-08-09 | 2003-02-26 | Yoshitake Inc | Valve element structure of double-seated valve |
| WO2007055370A1 (en) * | 2005-11-14 | 2007-05-18 | Ham-Let Motoyama Japan Ltd. | Fluid control unit, pressure control valve, and pressure control method |
| KR101124311B1 (en) * | 2008-04-21 | 2012-03-27 | 에스엠씨 가부시키 가이샤 | Throttling structure for use in a fluid pressure device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19950518 |