JPS63293371A - Spherical valve - Google Patents
Spherical valveInfo
- Publication number
- JPS63293371A JPS63293371A JP12835387A JP12835387A JPS63293371A JP S63293371 A JPS63293371 A JP S63293371A JP 12835387 A JP12835387 A JP 12835387A JP 12835387 A JP12835387 A JP 12835387A JP S63293371 A JPS63293371 A JP S63293371A
- Authority
- JP
- Japan
- Prior art keywords
- valve body
- valve
- opening
- upstream
- downstream
- 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
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 27
- 230000002093 peripheral effect Effects 0.000 abstract description 5
- 230000037431 insertion Effects 0.000 abstract 1
- 238000003780 insertion Methods 0.000 abstract 1
- 238000012856 packing Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 2
- 210000005010 torso Anatomy 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Landscapes
- Valve Housings (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は高落差水車用人口弁、揚水発電所用上止め弁等
に好適な球形弁に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a spherical valve suitable for artificial valves for high head water turbines, top stop valves for pumped storage power plants, and the like.
（従来の技術及びその問題点）
従来のこの種球形弁の１例が第２図及び第３図に示され
、第２図は縦断面図、第３図は第２図のｍ−ｍ線に沿う
部分的横断面図である。(Prior art and its problems) An example of a conventional spherical valve of this kind is shown in FIGS. 2 and 3, where FIG. 2 is a longitudinal cross-sectional view and FIG. 3 is a view taken along line mm in FIG. FIG.
第２図及び第３図において、１は円柱状の流路ｌａを具
えた弁体で、その軸方向中央部の外周には円柱状流路１
ａの軸芯と直交する方向に伸びる一対の弁軸１０が一体
に形成されている。２は弁胴で、その上流側フランジ２
ａは上流側短管３にボルト４で締結され、下流側フラン
ジ２ｂは下流側ジヨイント５にボルト６で締結されてい
る。そして、この弁胴２はその内部に弁体１を組み込む
ためにその中央部、即ち、弁軸ｌＯの軸芯を含む面でほ
ぼ対称に２分割され、２分割することによって構成され
た上流側弁胴２Ａと下流側弁胴２Ｂの分割面に形成され
た分割フランジ２ｃと２ｄはボルト７で相互に締結され
ている。In FIGS. 2 and 3, 1 is a valve body equipped with a cylindrical flow passage la, and a cylindrical flow passage 1 is provided on the outer periphery of the central part in the axial direction.
A pair of valve shafts 10 extending in a direction perpendicular to the axis of the valve a are integrally formed. 2 is the valve body, and its upstream flange 2
a is fastened to the upstream short pipe 3 with bolts 4, and the downstream flange 2b is fastened to the downstream joint 5 with bolts 6. In order to incorporate the valve body 1 into the valve body 2, the valve body 2 is divided into two parts almost symmetrically at the center thereof, that is, in a plane containing the axis of the valve shaft lO, and the upstream side constituted by the two divisions. Divided flanges 2c and 2d formed on the dividing surfaces of the valve body 2A and the downstream valve body 2B are fastened to each other with bolts 7.
弁軸１０は第３図に示すように弁胴２を貫通してその外
部に突出し、突出端にはレバー１１が締結されている。As shown in FIG. 3, the valve shaft 10 passes through the valve body 2 and projects to the outside, and a lever 11 is fastened to the projecting end.
弁軸ｌＯが弁胴２を貫通する軸穴２ｅの部分の分割フラ
ンジ２ｃ、 ２ｄは肉厚とされ、この部分は大径のボル
ト１７によって締結される。そして、弁軸１０と軸穴２
ｅとの間に弁軸スリーブ１２、ブツシュ１３、ブツシュ
ケース１４、パツキン１５及びパツキン押え１６が配設
されている０分割面に穿設された溝にはパツキン１８が
嵌装されている。The split flanges 2c and 2d at the shaft hole 2e portion where the valve shaft IO passes through the valve body 2 are made thick, and these portions are fastened with large-diameter bolts 17. Then, the valve shaft 10 and the shaft hole 2
A packing 18 is fitted into a groove bored in the 0-divided surface in which the valve stem sleeve 12, bushing 13, bushing case 14, packing 15, and packing retainer 16 are disposed between the valve shaft sleeve 12, bushing 13, bushing case 14, packing 15, and packing retainer 16.
しかして、レバー１１を介して弁軸１０を回転駆動する
ことによって弁体ｌは弁胴２内で回転し、図示の全閉状
態では弁体１の上流側はシールリング８及びリテーナリ
ング９を介して上流側短管３に接合され、下流側はシー
ルリング１９及びリテーナリング２０を介してジヨイン
ト５に接合される。By rotationally driving the valve shaft 10 via the lever 11, the valve body 1 rotates within the valve body 2, and in the fully closed state shown in the figure, the upstream side of the valve body 1 has a seal ring 8 and a retainer ring 9. The downstream side is connected to the joint 5 through a seal ring 19 and a retainer ring 20.
この全閉状態から弁軸１０を９０℃回転すると、弁体１
は第２図の２点鎖線で示す全開状態となり、流水は白抜
矢印方向に流過する。When the valve shaft 10 is rotated 90 degrees from this fully closed state, the valve body 1
is fully opened as shown by the two-dot chain line in FIG. 2, and the water flows in the direction of the white arrow.
この球形弁においては、弁胴２の分割面を弁軸１０が貫
通するため、貫通部の構造が複雑となるのみならず、弁
軸１０が貫通する軸穴２ｅを加工するには上流側弁胴２
Ａと下流側弁２Ｂとを予め組み立てた状態で加工しなけ
ればならないのでそのコストが嵩むという不具合があっ
た。In this spherical valve, since the valve stem 10 passes through the dividing surface of the valve body 2, not only does the structure of the penetrating part become complicated, but also the upstream side valve Torso 2
Since A and the downstream valve 2B must be assembled in advance, the cost increases.
上記不具合に対処するため、第４図及び第５図に示す球
形弁が提案された。これは弁胴２の分割面を弁軸１０の
軸芯から上流側に偏寄せしめ、弁軸１０が下流側弁胴２
Ｂを貫通して外部に突出するようにしたものである。弁
軸１０は弁体１とは別に加工され、弁体１を弁ｖ４２内
に組み込んだ後、弁体１に穿設された六１ｂ及び下流側
弁胴２Ｂに穿設された軸穴２ｅに流体流路１ａ側から挿
入して、ピン２１及びボルト２２によって弁体１に固定
される。他の構成は第２図及び第３図に示す従来の球形
弁と同様であり、対応する部材には同じ符号が付されて
いる。In order to deal with the above-mentioned problems, a spherical valve shown in FIGS. 4 and 5 was proposed. This biases the dividing surface of the valve body 2 toward the upstream side from the axis of the valve stem 10, so that the valve stem 10
It penetrates through B and protrudes to the outside. The valve stem 10 is processed separately from the valve body 1, and after the valve body 1 is assembled into the valve v42, it is inserted into the six 1b drilled in the valve body 1 and the shaft hole 2e bored in the downstream valve body 2B. It is inserted from the fluid flow path 1a side and fixed to the valve body 1 with pins 21 and bolts 22. The rest of the structure is similar to the conventional spherical valve shown in FIGS. 2 and 3, and corresponding parts are given the same reference numerals.
この球形弁は上流側弁胴２Ａと下流側弁胴２Ｂとが非対
称となるためこの製造コストが嵩むという問題があった
。This spherical valve has a problem in that the upstream valve body 2A and the downstream valve body 2B are asymmetrical, which increases the manufacturing cost.
また、この球形弁においても、弁体１を弁胴２内に組み
込むために弁胴２が２分割構造とされているので、分割
フランジ２ｃ、 ２ｄ及びこれらを相互に結合する多数
のボルト７を必要とするとともに弁胴２の組立、分解に
多大の手数及び時間を要し、かつ、分割面の強度や水密
性の信輔性に欠けるという問題があった。Also, in this spherical valve, since the valve body 2 is divided into two parts in order to incorporate the valve body 1 into the valve body 2, the divided flanges 2c, 2d and the numerous bolts 7 that connect them to each other are required. In addition, there were problems in that it required a great deal of effort and time to assemble and disassemble the valve body 2, and that the strength and watertightness of the dividing surface were unreliable.
（問題点を解決するための手段）
本発明は上記問題点に対処するために発明されたもので
あって、その要旨とするところは、円柱状の流路を具え
た弁体が一対の弁軸により弁胴内に回動可能に支持され
た球形弁において、上記弁胴の上流側開口又は下流側開
口のいずれか一方を上記弁体の輪郭より若干大きくして
この開口から上記弁体を上記弁胴内に挿入したことを特
徴とする球形弁にある。(Means for Solving the Problems) The present invention was invented to solve the above problems, and its gist is that a valve body having a cylindrical flow path is connected to a pair of valves. In a spherical valve rotatably supported within a valve body by a shaft, either an upstream opening or a downstream opening of the valve body is slightly larger than the contour of the valve body, and the valve body is inserted through this opening. A spherical valve characterized by being inserted into the valve body.
（作用）
本発明は上記構成を具えているため、弁体はその輪郭よ
り若干大きい開口から弁胴内に挿入されて組み込まれる
。(Operation) Since the present invention has the above configuration, the valve body is inserted and assembled into the valve body through an opening slightly larger than its contour.
（実施例） 本発明の１実施例が第１図に示されている。(Example) One embodiment of the invention is shown in FIG.
弁胴２は２分割構造とされることなく一体構造とされ、
その上流側開口２Ｃはこの開口２Ｃより弁体１を弁胴２
内に挿入しうるように弁体１の輪郭ｄより若干大きいＤ
とされている。The valve body 2 is not a two-part structure, but has an integral structure,
The upstream opening 2C connects the valve body 1 to the valve body 2 from this opening 2C.
D is slightly larger than the contour d of the valve body 1 so that it can be inserted into the valve body 1.
It is said that
しかして、球形弁を組立てる際、弁体ｌはこの上流側開
口２Ｃから弁胴２内に挿入される。しかる後、上流側開
口２Ｃの内周面にアダプタ２３が嵌合され、このアダプ
タ２３の内周面にはシールリング８及びリテーナリング
９が嵌合される。そして、上記アダプタ２３、シールリ
ング８及びリテーナリング９は上流側フランジ２ａと上
流側短管３をボルト４で締結することによって弁胴２内
に固定される。Thus, when assembling the spherical valve, the valve body 1 is inserted into the valve body 2 from this upstream opening 2C. Thereafter, the adapter 23 is fitted to the inner peripheral surface of the upstream opening 2C, and the seal ring 8 and the retainer ring 9 are fitted to the inner peripheral surface of the adapter 23. The adapter 23, seal ring 8, and retainer ring 9 are fixed within the valve body 2 by fastening the upstream flange 2a and the upstream short pipe 3 with bolts 4.
弁胴２の下流側間口２Ｄは第２図ないし第５図に示す従
来のものと同様で、この内周面に嵌合されたシールリン
グ１９及びリテーナリング２０は下流側フランジ２ｂと
下流側ジヨイント５をボルト６で締結することによって
弁胴２内に固定される。The downstream opening 2D of the valve body 2 is similar to the conventional one shown in FIGS. 2 to 5, and the seal ring 19 and retainer ring 20 fitted on the inner peripheral surface are connected to the downstream flange 2b and the downstream joint. 5 is fixed within the valve body 2 by fastening with bolts 6.
弁軸１０は第４図及び第５図に示す従来のものと同様弁
体１を弁胴２内に組み込んだ後、弁体１に穿設された六
１ｂ及び弁胴２に穿設された軸穴２ｅに流体流路１ａ側
から挿入してビン２１及びボルト２２によって弁体１に
固定される。The valve stem 10 is similar to the conventional one shown in FIGS. 4 and 5, after the valve body 1 is assembled into the valve body 2, the valve stem 10 is formed by inserting the valve body 1 into the valve body 2 and the six 1b bored into the valve body 2. It is inserted into the shaft hole 2e from the fluid flow path 1a side and fixed to the valve body 1 with a bottle 21 and a bolt 22.
しかして、弁胴２の上流側開口２Ｃは弁体Ｉの輪郭より
若干大きくされているので、弁体１はこの上流側開口２
Ｃから弁胴２内に挿入することができ、従って、弁胴２
を２分割構造とする必要がなくなる。Therefore, since the upstream opening 2C of the valve body 2 is slightly larger than the contour of the valve body I, the valve body 1 is
C into the valve body 2 and therefore the valve body 2
It is no longer necessary to have a two-part structure.
なお、上記実施例においては、弁胴２の上流側開口２Ｃ
を弁体１の輪郭より若干大きくしているが、これに代え
て下流側開口２Ｄを弁体ｌの輪郭より若干大きくして、
この下流側間口２Ｄより弁体１を弁胴２内に挿入しうる
ようにすることもできる。また、上記実施例においては
、閉弁時に弁体１の上流側及び下流側はそれぞれシール
リング及びリテーナリングによってシールされるように
なっているが、上流側又は下流側のいずれか一方をシー
ルするようにしても良い。更に、弁体１の肉厚を厚くす
る等によって弁体１の剛性を高めれば、弁体１の外周に
突設されたリプを省略して弁体１の輪郭を小さくするこ
とができる。In addition, in the above embodiment, the upstream opening 2C of the valve body 2
is made slightly larger than the contour of the valve body 1, but instead of this, the downstream opening 2D is made slightly larger than the contour of the valve body l,
The valve body 1 can also be inserted into the valve body 2 through this downstream opening 2D. Furthermore, in the above embodiment, when the valve is closed, the upstream and downstream sides of the valve body 1 are sealed by the seal ring and the retainer ring, respectively. You can do it like this. Furthermore, if the rigidity of the valve body 1 is increased by increasing the wall thickness of the valve body 1, the lip protruding from the outer periphery of the valve body 1 can be omitted, and the outline of the valve body 1 can be made smaller.
（発明の効果）
本発明においては、弁胴の上流側開口又は下流側開口の
いずれか一方を弁体の輪郭より若干大きくしたため、弁
体はこの開口から弁胴内に挿入でき、従って、弁胴を２
分割構造とする必要がない。(Effect of the invention) In the present invention, either the upstream opening or the downstream opening of the valve body is made slightly larger than the contour of the valve body, so the valve body can be inserted into the valve body from this opening, and therefore the valve body can be inserted into the valve body from this opening. 2 torsos
There is no need for a split structure.
この結果、分割フランジ及びこれらを相互に締結する多
数のボルトが不要になるので、コストが著しく低下する
とともに組立、分解が容易となり、また、強度及び水蜜
性も向上する。As a result, there is no need for split flanges and a large number of bolts for fastening them together, resulting in a significant reduction in cost, ease of assembly and disassembly, and improved strength and watertightness.
第１図は本発明の１実施例を示す縦断面図である。第２
図及び第３図は従来の球形弁の１例を示し、第２図は縦
断面図、第３図は第２図のｍ−ｍ線に沿う部分的横断面
図である。第４図及び第５図は従来の他の球形弁を示し
、第４図は縦断面図、第５図は第４図のＶ−Ｖ線に沿う
部分的横断面図である。
弁体−１、流路−１ａ 、弁軸−１０、弁胴−・−２、
上流第 １ 図
賄２図
継３図
嬬４図FIG. 1 is a longitudinal sectional view showing one embodiment of the present invention. Second
2 and 3 show an example of a conventional spherical valve, with FIG. 2 being a longitudinal cross-sectional view and FIG. 3 being a partial cross-sectional view taken along line mm in FIG. 2. 4 and 5 show other conventional spherical valves, with FIG. 4 being a longitudinal cross-sectional view and FIG. 5 being a partial cross-sectional view taken along line V--V in FIG. 4. Valve body-1, flow path-1a, valve stem-10, valve body-2,
Upstream No. 1 Figure 2 Figure 2 Figure 3 Figure 4
Claims (1)
回動可能に支持された球形弁において、上記弁胴の上流
側開口又は下流側開口のいずれか一方を上記弁体の輪郭
より若干大きくしてこの開口から上記弁体を上記弁胴内
に挿入したことを特徴とする球形弁。In a spherical valve in which a valve body having a cylindrical flow path is rotatably supported within a valve body by a pair of valve shafts, either an upstream opening or a downstream opening of the valve body is connected to the valve body. A spherical valve characterized in that the valve body is inserted into the valve body through this opening, which is slightly larger than the outline of the spherical valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12835387A JPS63293371A (en) | 1987-05-27 | 1987-05-27 | Spherical valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12835387A JPS63293371A (en) | 1987-05-27 | 1987-05-27 | Spherical valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63293371A true JPS63293371A (en) | 1988-11-30 |
Family
ID=14982720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12835387A Pending JPS63293371A (en) | 1987-05-27 | 1987-05-27 | Spherical valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63293371A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6237672B2 (en) * | 1983-10-27 | 1987-08-13 | Gen Electric |
-
1987
- 1987-05-27 JP JP12835387A patent/JPS63293371A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6237672B2 (en) * | 1983-10-27 | 1987-08-13 | Gen Electric |
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