JPH02286972A - Ball valve - Google Patents
Ball valveInfo
- Publication number
- JPH02286972A JPH02286972A JP11016789A JP11016789A JPH02286972A JP H02286972 A JPH02286972 A JP H02286972A JP 11016789 A JP11016789 A JP 11016789A JP 11016789 A JP11016789 A JP 11016789A JP H02286972 A JPH02286972 A JP H02286972A
- Authority
- JP
- Japan
- Prior art keywords
- valve body
- side seat
- valve
- fluid
- inflow side
- 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
- 239000012530 fluid Substances 0.000 claims abstract description 41
- 239000002184 metal Substances 0.000 claims abstract description 12
- 229910052751 metal Inorganic materials 0.000 claims abstract description 12
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 11
- 239000000057 synthetic resin Substances 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 abstract description 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 229910000737 Duralumin Inorganic materials 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910001347 Stellite Inorganic materials 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- AHICWQREWHDHHF-UHFFFAOYSA-N chromium;cobalt;iron;manganese;methane;molybdenum;nickel;silicon;tungsten Chemical compound C.[Si].[Cr].[Mn].[Fe].[Co].[Ni].[Mo].[W] AHICWQREWHDHHF-UHFFFAOYSA-N 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Taps Or Cocks (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明のボール弁は流体流量を可変制御する分野で利用
され、空調における冷・温水制御、化学プラントにおけ
る薬液制御、ガス分野におけるガス流値の制御等で使用
できる。[Detailed Description of the Invention] [Industrial Application Field] The ball valve of the present invention is used in the field of variable control of fluid flow rate, such as cold/hot water control in air conditioning, chemical liquid control in chemical plants, and gas flow value in the gas field. It can be used for controlling etc.
従来のボール弁は、例えば特開昭６２−１７７３７３号
公報、実開昭６２−１２６６７４゜１２６６７５号全文
明細書に開示されているように、２分割された弁箱内に
流通孔を有するポールと、このポールの両開口側にそれ
ぞれ接触するシール部材とを装着し、ポールの流過孔の
流入側の開口を円形となし、波山側の開口を扇形となし
、ポールの回動に伴なって徐々に流量の調節ができるも
のであった。Conventional ball valves include a pole having a flow hole in a valve box divided into two parts, as disclosed in, for example, Japanese Unexamined Patent Application Publication No. 177373/1982 and Japanese Utility Model Application No. 62-126674/126675. , a sealing member that contacts each opening side of the pole is attached, and the opening on the inflow side of the flow hole of the pole is made circular, and the opening on the wave crest side is made fan-shaped, and as the pole rotates. The flow rate could be adjusted gradually.
しかしながら、従来のボール弁にあっては、流入側シー
トと流出側のシートのいずれも摩耗が大きく耐久性の点
で産業上の実使用に利用できるものではなかった。However, in conventional ball valves, both the inflow-side seat and the outflow-side seat suffer from heavy wear and cannot be used for practical industrial use due to their durability.
すなわち、流入側のシートは、第５図で明白な様に流体
圧力をシートと弁本体の間に受けて変形摩耗が著しく大
きい、又、流出側のシートは、ポールの扇形開口との流
体絞り部分となって高流速側となるため、変形摩耗が著
しい、そして流入側シートと流出側シートの材質はいず
れも合成樹脂製で、短期間で交換が必要となり、メンテ
ナンス費用が高価であった。In other words, the seat on the inflow side experiences significant deformation and wear due to fluid pressure between the seat and the valve body, as is clear in Figure 5, and the seat on the outflow side suffers from the fluid restriction caused by the fan-shaped opening of the pole. Since these parts are on the high flow velocity side, deformation and wear are significant, and both the inflow and outflow sheets are made of synthetic resin, requiring replacement in a short period of time, resulting in high maintenance costs.
本発明のボール弁は、シートの耐久性に秀れ、且、流量
の調箇が可能で、弁閉止時の弁座洩れ性能も向上できる
ものである。The ball valve of the present invention has excellent seat durability, allows flow rate adjustment, and improves valve seat leakage performance when the valve is closed.
本発明のボール弁は、貫通穴１２を有する球形状の弁体
１と、該弁体を挟持して常接する複数のシート２とを備
え、該シート２を弁本体３に固定配置し、弁体１を回動
摺動させて流体流路を開閉制御するボール弁において、
弁体の球面部分に流体絞り穴４を穿設し、該流体絞り穴
と流入側シート５によって流体流路を大・小可変に制御
すると共に、流入側シート５を金属製とし、且、流出側
シート６を合成樹脂製としたものである。The ball valve of the present invention includes a spherical valve body 1 having a through hole 12, and a plurality of seats 2 that are in constant contact with the valve body sandwiching the valve body. In a ball valve that controls opening and closing of a fluid flow path by rotating and sliding the body 1,
A fluid throttle hole 4 is formed in the spherical part of the valve body, and the fluid flow path is variably controlled in size by the fluid throttle hole and the inflow side seat 5, and the inflow side seat 5 is made of metal, and the outflow The side sheet 6 is made of synthetic resin.
流入側シート５と流体絞り穴４との開口部は流体の絞り
部分を形成し流量が最大限に絞られ、弁内部の最高流速
部分となる。しかし、流入側シート５は金属製であり摩
耗・変形は防止される。更に第５図の様に流入側シート
５と弁本体との間に流体が流入した場合でも金属製シー
ト故、変形が無い、他方、流出側シート６と弁体１の円
形貫通穴との開口部は、流入側開口部より広いため、流
量が絞られず、流速は比較的おそいため、合成樹脂製の
シートの変形・摩耗がない。The opening between the inflow side sheet 5 and the fluid throttle hole 4 forms a fluid throttle section, where the flow rate is maximized and becomes the highest flow velocity section inside the valve. However, since the inflow side sheet 5 is made of metal, wear and deformation are prevented. Furthermore, as shown in FIG. 5, even if fluid flows between the inlet seat 5 and the valve body, there will be no deformation because the seat is made of metal. Since the opening is wider than the inlet opening, the flow rate is not restricted and the flow velocity is relatively slow, so there is no deformation or wear of the synthetic resin sheet.
更に、全閉時には球形状の弁体が流体圧入によって合成
樹脂製の流出側シートに押圧され弁座気密性が確保され
る。Furthermore, when the valve is fully closed, the spherical valve element is pressed against the synthetic resin outflow side seat by fluid pressure, ensuring airtightness of the valve seat.
又、流体は弁体の球面側より流入するので、絞り部分に
おける波路形状変化がゆるやがで流体の乱流発生が防止
され、騒音が生じない。In addition, since the fluid flows in from the spherical side of the valve body, the shape of the wave path at the constricted portion changes slowly, preventing the occurrence of turbulent flow of the fluid and causing no noise.
本発明の一実施例を第１図〜第４図により説明する。 An embodiment of the present invention will be described with reference to FIGS. 1 to 4.
弁本体３の内部には流体入口１０から流体出口ｌｌへ連
通する流路が連通し、流体は矢印Ａの向きに流れる。弁
本体３に固定配置された流入側シート５は金属製であり
、例えば、鉄鋼、ステンレス鋼、ニッケル合金、非鉄金
属、黄銅、青銅、ジュラルミン、セラミック、炭素、ス
テライト等で製作される。又、流出側シート６は合成樹
脂製で例えば、４弗化エチレン樹脂、テフロン、炭素、
ガラス、樹脂又はこれらの合成で製作される。流入側シ
ート５と流出側シート６にて挟持された球形状の弁体ｌ
は、内部に円形の貫通穴１２を有する公知のボール弁体
に追加して半球部材７を正大固着したものである。半球
部材７には略扇形の三角形状の流体絞り穴４が穿設され
ており、流体絞り穴４の開口面積は貫通穴１２の開口面
積より小さく設定されている。又、流体絞り穴４の開口
形状は流量特性に応じて種々変更が可能である。A flow path communicating from the fluid inlet 10 to the fluid outlet ll communicates with the inside of the valve body 3, and fluid flows in the direction of arrow A. The inflow side seat 5 fixedly arranged on the valve body 3 is made of metal, such as steel, stainless steel, nickel alloy, non-ferrous metal, brass, bronze, duralumin, ceramic, carbon, stellite, etc. The outflow side sheet 6 is made of synthetic resin, such as tetrafluoroethylene resin, Teflon, carbon,
Manufactured from glass, resin, or a combination of these. A spherical valve body l sandwiched between an inflow side seat 5 and an outflow side seat 6
This is a known ball valve body having a circular through hole 12 therein, in addition to which a hemispherical member 7 is fixed in its normal size. A substantially fan-shaped triangular fluid throttle hole 4 is bored in the hemispherical member 7, and the opening area of the fluid throttle hole 4 is set smaller than the opening area of the through hole 12. Further, the opening shape of the fluid throttle hole 4 can be changed in various ways depending on the flow rate characteristics.
弁体ｌの溝部にはステム１３が挿入されており該ステム
には２本の０−リングＩ４が配置されている。弁本体３
の上部には電動又は空気圧もしくは油圧操作の回動出力
操作機１５が搭載され、操作機の出力によってステム１
３および弁体ｌが回動駆動される。A stem 13 is inserted into the groove of the valve body l, and two O-rings I4 are arranged on the stem. Valve body 3
An electric, pneumatic, or hydraulically operated rotary output operating device 15 is mounted on the top of the stem 1.
3 and the valve body l are rotationally driven.
実施例の作用を説明すると、第３図に示す様に弁体１が
中間開度の時には流体絞り穴４と流入側シート５との流
路面積Ｓｌにおいて、流路が絞られて流量が制御される
。この部分の流速は最大となるが流入側シートが金属製
のため、シートの摩耗が無い、又、第５図の様に弁本体
と流入側シートの間に流体圧力が流入した時でも金属製
のシートのため流入側シート変形を生じない０次に弁体
の貫通穴１２から流出側シート６へ流体が通過する時の
流路面ｆＪＬｓ２は、流路面積Ｓｔより大きいので流速
は低下し、流出側シートの変形・摩耗を生じない、そし
て、第４図に示す様に弁が全閉状態の時は、流体圧力を
受けた弁体ｌが合成樹脂製の流出側シート６に押圧され
て弁座気密性が、確保される。To explain the operation of the embodiment, as shown in FIG. 3, when the valve body 1 is at an intermediate opening degree, the flow path is throttled and the flow rate is controlled in the flow path area Sl between the fluid restriction hole 4 and the inflow side seat 5. be done. The flow velocity in this part is maximum, but since the inflow side seat is made of metal, there is no wear on the seat, and even when fluid pressure flows between the valve body and the inflow side seat as shown in Figure 5, the metal Since the flow path surface fJLs2 when the fluid passes from the through hole 12 of the valve body to the outflow side seat 6 is larger than the flow path area St, the flow velocity decreases and the flow rate decreases. When the side seat is not deformed or worn, and when the valve is fully closed as shown in Fig. 4, the valve body 1 that receives fluid pressure is pressed against the outflow side seat 6 made of synthetic resin, and the valve closes. Seat airtightness is ensured.
従って、金属製の流入側シート５は流量制御用として、
高流速に酎え、合成樹脂製の流出側シート６は弁座気密
用として低流速で耐久性を確保する。Therefore, the metal inflow side sheet 5 is used for controlling the flow rate.
The outflow side sheet 6 made of synthetic resin serves as an airtight valve seat to ensure durability at low flow speeds.
又、弁体ｌは汎用標準品ポールを利用し、半球部材７を
圧入することによって安価に製作できる。そして流体絞
り穴４の形状を変更することによって容易に流量性簡を
変更できる。Further, the valve body l can be manufactured at low cost by using a general-purpose standard pole and press-fitting the hemispherical member 7. By changing the shape of the fluid throttle hole 4, the flow rate can be easily changed.
本発明のポール弁は、流量制御用として流量制御性を確
保すると共に流入側シートの変形・摩耗を防１トシ、同
時に弁閉止時の弁座洩れ性能を向上せしめ、耐久性に秀
れたものである。The Pall valve of the present invention is used for flow control, ensuring flow control performance, preventing deformation and wear of the inflow side seat, and at the same time improving the valve seat leakage performance when the valve is closed, and has excellent durability. It is.
又、ポール弁体ｌは市販の汎用ポール弁体を追加工し、
半球部材を圧入することによって容易に安価に製作でき
る。In addition, the pole valve body l is a commercially available general-purpose pole valve body with additional processing.
It can be manufactured easily and inexpensively by press-fitting a hemispherical member.
又、流体は弁体の球面側より流入するので、絞り部分に
おける流路形状変化がゆるやかで流体の乱流発生が防出
され騒音が生じない。Further, since the fluid flows in from the spherical side of the valve body, the shape of the flow path changes slowly in the constricted portion, preventing the occurrence of turbulent flow of the fluid and causing no noise.
第１図は本発明のポール弁の一実施例を示す縦断面図、
第２図は第１図の弁体ｌの側面図、第３図は第１図の弁
体１の中間開度部分断面図、第４図は第１図の弁体ｌの
全閉時部分断面図、第５図は従来のシートと弁体との部
分断面図である。
１ 、、、、弁体 ２ 、、、、シート３
、、、、弁本体 ４ 、、、、流体絞り穴５
、、、、流入側シート ６ 、、、、流出側シート７
、、、、半球部材 ＋２．、、、Ｗ通穴編
デ
図FIG. 1 is a longitudinal sectional view showing an embodiment of the pole valve of the present invention;
Figure 2 is a side view of the valve body l shown in Figure 1, Figure 3 is a partial sectional view of the valve body 1 in Figure 1 at an intermediate opening, and Figure 4 is a fully closed portion of the valve body l in Figure 1. FIG. 5 is a partial sectional view of a conventional seat and valve body. 1. Valve body 2. Seat 3
, , Valve body 4 , Fluid throttle hole 5
,,,Inflow side sheet 6 ,,,Outflow side sheet 7
,,,, Hemisphere member +2. ,,, W through hole edition
Claims (2)
挟持して常接する複数のシート２とを備え、該シート２
を弁本体３に固定配置し、弁体１を回動摺動させて流体
流路を開閉制御するボール弁において、弁体の球面部分
に流体絞り穴４を穿設し、該流体絞り穴と流入側シート
５によって流体流路を大小可変に制御すると共に、流入
側シート５を金属製とし、且、流出側シート６を合成樹
脂製としたことを特徴とするボール弁。(1) Comprising a spherical valve body 1 having a through hole 12 and a plurality of seats 2 that sandwich and constantly contact the valve body, the seats 2
In the ball valve, which is fixedly arranged on the valve body 3 and which controls opening and closing of the fluid flow path by rotating and sliding the valve body 1, a fluid throttle hole 4 is bored in the spherical part of the valve body, and the fluid throttle hole and A ball valve characterized in that a fluid flow path is variably controlled in size by an inflow side seat 5, and the inflow side seat 5 is made of metal, and the outflow side seat 6 is made of synthetic resin.
挟持して常接する複数のシート２とを備え、該シート２
を弁本体３に固定配量し、弁体１を回動摺動させて流体
流路を開閉制御するボール弁において、弁体の貫通穴に
球面部分を有する半球部材７を固着し、該半球部材７に
流体絞り穴４を穿設し、該流体絞り穴と流入側シート５
によって流体流路を大小可変に制御すると共に、流入側
シート５を金属製とし、且、流出側シート６を合成樹脂
としたことを特徴とするボール弁。(2) Comprising a spherical valve body 1 having a through hole 12 and a plurality of seats 2 that sandwich and constantly contact the valve body, the seats 2
In a ball valve that controls the opening and closing of a fluid flow path by rotating and sliding the valve body 1, a hemispherical member 7 having a spherical surface is fixed to the through hole of the valve body, and the hemisphere A fluid throttle hole 4 is formed in the member 7, and the fluid throttle hole and the inflow side sheet 5
This ball valve is characterized in that the size of the fluid flow path is variably controlled by the valve, the inflow side seat 5 is made of metal, and the outflow side seat 6 is made of synthetic resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11016789A JPH02286972A (en) | 1989-04-28 | 1989-04-28 | Ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11016789A JPH02286972A (en) | 1989-04-28 | 1989-04-28 | Ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02286972A true JPH02286972A (en) | 1990-11-27 |
Family
ID=14528749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11016789A Pending JPH02286972A (en) | 1989-04-28 | 1989-04-28 | Ball valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02286972A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155554A (en) * | 2011-04-22 | 2011-08-17 | 绥中泰德尔自控设备有限公司 | Flow-distribution plate of electric ball valve and assembling method of flow-distribution plate |
| CN105020119A (en) * | 2013-12-17 | 2015-11-04 | 特灵国际有限公司 | Fluid valve |
| JP2018146114A (en) * | 2018-06-07 | 2018-09-20 | 株式会社キッツ | Adhesion method of ball seat for high-pressure ball valve |
| CN108662186A (en) * | 2017-03-31 | 2018-10-16 | 浙江三花汽车零部件有限公司 | A kind of motor-driven valve |
-
1989
- 1989-04-28 JP JP11016789A patent/JPH02286972A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155554A (en) * | 2011-04-22 | 2011-08-17 | 绥中泰德尔自控设备有限公司 | Flow-distribution plate of electric ball valve and assembling method of flow-distribution plate |
| CN105020119A (en) * | 2013-12-17 | 2015-11-04 | 特灵国际有限公司 | Fluid valve |
| US10465675B2 (en) | 2013-12-17 | 2019-11-05 | Trane International Inc. | Fluid valve |
| CN108662186A (en) * | 2017-03-31 | 2018-10-16 | 浙江三花汽车零部件有限公司 | A kind of motor-driven valve |
| JP2018146114A (en) * | 2018-06-07 | 2018-09-20 | 株式会社キッツ | Adhesion method of ball seat for high-pressure ball valve |
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