JPS6337587Y2 - - Google Patents
Info
- Publication number
- JPS6337587Y2 JPS6337587Y2 JP1982171374U JP17137482U JPS6337587Y2 JP S6337587 Y2 JPS6337587 Y2 JP S6337587Y2 JP 1982171374 U JP1982171374 U JP 1982171374U JP 17137482 U JP17137482 U JP 17137482U JP S6337587 Y2 JPS6337587 Y2 JP S6337587Y2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valve seat
- pipe
- valve body
- gate
- 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
Links
- 238000001816 cooling Methods 0.000 claims description 10
- 239000000919 ceramic Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000012530 fluid Substances 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 229910000856 hastalloy Inorganic materials 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Sliding Valves (AREA)
- Details Of Valves (AREA)
Description
【考案の詳細な説明】
この考案は耐熱並びに耐圧性に優れた仕切弁に
関する。[Detailed description of the invention] This invention relates to a gate valve with excellent heat resistance and pressure resistance.
一般に高温、高圧流体（温度300℃以上、圧力
250Kg／cm2以上）に使用されるバルブは、弁筐内
の温度及び圧力が極めて高くなり、各部材の強度
低下や腐食をもたらすものであるか、特に仕切弁
の楔形弁体は、熱膨張や流体圧によつて弁座面と
の接触圧が増大し、昇降時に大きな摺動抵抗が発
生する為、従来の金属弁体では、その摩擦熱によ
つて焼付きが生じ易かつたものである。 Generally high temperature, high pressure fluid (temperature 300℃ or more, pressure
250Kg/cm2 or more ), the temperature and pressure inside the valve casing will be extremely high, leading to a decrease in strength and corrosion of each member.In particular, the wedge-shaped valve body of the gate valve may be subject to thermal expansion. The contact pressure with the valve seat surface increases due to the pressure and fluid pressure, creating a large sliding resistance when moving up and down, so conventional metal valve bodies were prone to seizing due to the frictional heat. be.
これに対処して従来からこの種の仕切弁は、パ
ラレルスライド弁や可撓弁体などの特殊な弁体構
造を採用したり、弁座並びに弁板内部に冷却水の
循環機構を設けるなどの対策が採られていたが、
前者では内部流体の漏洩が生じ易く、又後者では
バルブ全体、特に弁板の構造が複雑となつて、製
作上の手間の増大とコストの高謄を招くという問
題点が見られたものであつた。 To deal with this, gate valves of this type have traditionally adopted special valve body structures such as parallel slide valves or flexible valve bodies, or installed cooling water circulation mechanisms inside the valve seat and valve plate. Although measures were taken,
In the former, the internal fluid is likely to leak, and in the latter, the structure of the entire valve, especially the valve plate, becomes complicated, leading to increased manufacturing effort and high costs. Ta.
このような実情に鑑み本考案は、特にその弁体
を耐熱性に優れたセラミツクスで構成するととも
に、弁座側には螺旋状の冷却機構を設けたことに
よつて、叙上の問題点を技術的に解消せしめたも
のである。 In view of these circumstances, the present invention solves the above-mentioned problems by specifically constructing the valve body from ceramics with excellent heat resistance, and by providing a spiral cooling mechanism on the valve seat side. This has been technically resolved.
以下、その構成を一つの実施例に基づいて更に
詳述すると、第１図に示す仕切弁において、１は
弁筐、２は一端を弁座面２′とし、上記弁筐中央
の両側内面に嵌着された弁座管であつて、その外
周に末端が弁筐の排出孔１′に通ずる螺旋状の通
溝３を凹設したものである。 The structure will be described in more detail below based on one embodiment. In the gate valve shown in FIG. It is a fitted valve seat pipe, and a spiral groove 3 is recessed in its outer periphery, the end of which communicates with the discharge hole 1' of the valve housing.
又４は上記両弁座管２の通溝３の弁座側端部か
ら弁筐の胴室１ａ内を経て、弁筐フランジ部１ｂ
に貫設された透孔１ｃを介して外部に連通する冷
却管である。 4 extends from the valve seat side end of the passage groove 3 of both valve seat pipes 2 through the inside of the body chamber 1a of the valve housing to the valve housing flange portion 1b.
This is a cooling pipe that communicates with the outside through a through hole 1c provided through the cooling pipe.
又５は上記弁座面２′に楔入自在な楔形弁体で
あつて、例えば炭化硅素、窒化硅素系のセラミツ
クスによつて成形されたものであり、更に６は例
えばハステロイなどの耐熱合金からなる弁棒であ
る。 Further, 5 is a wedge-shaped valve body that can be wedged into the valve seat surface 2', and is made of, for example, silicon carbide or silicon nitride ceramics, and 6 is made of a heat-resistant alloy such as Hastelloy. It is a valve rod.
尚、図中７は上記冷却管４と弁筐の透孔１ｃと
の貫通部分に設けられた気密保持用のベローズ、
８は弁棒貫通部にバツクシート８′を備えてなる
ボンネツト、又９はグランドパツキング、１０は
必要に応じて設けられる套管を示す。 In addition, 7 in the figure is a bellows for maintaining airtightness provided at the penetrating portion between the cooling pipe 4 and the through hole 1c of the valve housing.
Reference numeral 8 indicates a bonnet provided with a back seat 8' in the valve stem penetrating portion, 9 indicates gland packing, and 10 indicates a sleeve provided as required.
叙上の構成に係わる本案の仕切弁は、その使用
に当たり、例えばヘリウムなどの冷却媒体を冷却
管４を介して弁座外周の螺旋状通溝３に送給する
ことによつて、該部の高熱化が防止出来ると同時
に、特にその弁体５が耐熱性、耐腐食性、並びに
強度に優れたセラミツクスで成形されていること
から、これらが相い俟つて弁体５の焼付きなどを
確実に防止することが出来るうえ、弁体並びに弁
座部分の熱歪みを排除して、開弁時における内部
流体の漏洩が全く生じることがないものである。 In use, the gate valve of the present invention having the above-mentioned structure cools the area by feeding a cooling medium such as helium through the cooling pipe 4 to the spiral groove 3 on the outer periphery of the valve seat. High temperatures can be prevented, and at the same time, since the valve body 5 is made of ceramics that have excellent heat resistance, corrosion resistance, and strength, these things work together to ensure that the valve body 5 does not seize. In addition, thermal distortion of the valve body and valve seat portion is eliminated, and no leakage of internal fluid occurs when the valve is opened.
更に本案の仕切弁では、上述した弁座部分にお
ける温度上昇を抑制し得ることに加えて、冷却管
４が通設される弁筐のフランジ部１ｂ、及び該部
に接続するボンネツト８、並びに弁筐胴室１ａが
それぞれ冷却されて弁筐全体の異常昇温を阻止出
来る他、このような冷却機構は弁座管２の外周に
螺旋状通溝３を切設して冷却管４と連通させるだ
けで良いから、製作が比較的簡単で安価であるな
ど、この種の高温、高圧用仕切弁として顕著な実
用的利点を有するものである。 Furthermore, in addition to being able to suppress the temperature rise at the valve seat portion described above, the gate valve of the present invention can suppress the temperature rise at the valve seat portion as described above. In addition to cooling each of the casing chambers 1a to prevent abnormal temperature rise of the entire valve casing, such a cooling mechanism also cuts a spiral groove 3 on the outer periphery of the valve seat pipe 2 to communicate with the cooling pipe 4. This kind of gate valve for high temperature and high pressure has remarkable practical advantages, such as being relatively simple and inexpensive to manufacture.
第１図は本案仕切弁の中心部縦断面図である。
尚、図中１……弁筐、２……弁座管、３……通
溝、４……冷却管、５……弁体、６……弁棒、７
……ベローズ、９……グランドパツキング。
FIG. 1 is a longitudinal cross-sectional view of the central part of the gate valve according to the present invention. In addition, in the figure 1...valve housing, 2...valve seat pipe, 3...channel, 4...cooling pipe, 5...valve body, 6...valve stem, 7
...Bellows, 9...Grand Pack King.
Claims (1)
座管を嵌着し、該弁座管の外周に切設され、末端
が排出孔に通ずる螺旋状通溝の他端に、弁筐胴室
内を貫入する冷却管を連通せしめるとともに、上
記弁座面に楔入自在な弁体をセラミツクスによつ
て成形したことを特徴とする高温、高圧用仕切
弁。 A valve seat pipe with one end as a valve seat surface is fitted into the inner surfaces of both sides of the center of the valve housing, and a spiral groove is cut on the outer periphery of the valve seat pipe, and the other end of the valve seat pipe is connected to the discharge hole. A gate valve for high temperature and high pressure, characterized in that a cooling pipe penetrating the interior of the casing is communicated with the valve body, and a valve body is molded from ceramics and can be wedged into the valve seat surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17137482U JPS5973682U (en) | 1982-11-11 | 1982-11-11 | Gate valve for high temperature and high pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17137482U JPS5973682U (en) | 1982-11-11 | 1982-11-11 | Gate valve for high temperature and high pressure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5973682U JPS5973682U (en) | 1984-05-18 |
| JPS6337587Y2 true JPS6337587Y2 (en) | 1988-10-04 |
Family
ID=30373854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17137482U Granted JPS5973682U (en) | 1982-11-11 | 1982-11-11 | Gate valve for high temperature and high pressure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5973682U (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100720862B1 (en) | 2006-09-29 | 2007-05-23 | 주식회사 동아밸브 | Gate valve |
| JP5451043B2 (en) * | 2008-12-03 | 2014-03-26 | 東亜バルブエンジニアリング株式会社 | High temperature fluid valve |
| JP5872802B2 (en) * | 2011-06-22 | 2016-03-01 | 橋本エンジニアリング株式会社 | Heat-resistant piston / cylinder equipment |
| JP6199630B2 (en) * | 2013-07-01 | 2017-09-20 | 橋本エンジニアリング株式会社 | Heat-resistant piston / cylinder equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5110422A (en) * | 1974-07-15 | 1976-01-27 | Nippon Steel Corp | NETSUPUSHADANBEN |
| JPS574299U (en) * | 1980-06-10 | 1982-01-09 |
-
1982
- 1982-11-11 JP JP17137482U patent/JPS5973682U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5110422A (en) * | 1974-07-15 | 1976-01-27 | Nippon Steel Corp | NETSUPUSHADANBEN |
| JPS574299U (en) * | 1980-06-10 | 1982-01-09 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5973682U (en) | 1984-05-18 |
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