JP2006029241A5 - - Google Patents

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Publication number
JP2006029241A5
JP2006029241A5 JP2004210735A JP2004210735A JP2006029241A5 JP 2006029241 A5 JP2006029241 A5 JP 2006029241A5 JP 2004210735 A JP2004210735 A JP 2004210735A JP 2004210735 A JP2004210735 A JP 2004210735A JP 2006029241 A5 JP2006029241 A5 JP 2006029241A5
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JP
Japan
Prior art keywords
centrifugal pump
pump according
thick
casing cover
casing
Prior art date
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Granted
Application number
JP2004210735A
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Japanese (ja)
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JP2006029241A (en
JP4633396B2 (en
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Application filed filed Critical
Priority claimed from JP2004210735A external-priority patent/JP4633396B2/en
Priority to JP2004210735A priority Critical patent/JP4633396B2/en
Priority to US11/631,483 priority patent/US20080019831A1/en
Priority to EP04799748A priority patent/EP1774181A1/en
Priority to PCT/JP2004/017203 priority patent/WO2006008843A1/en
Priority to CNA2004800436049A priority patent/CN1989347A/en
Publication of JP2006029241A publication Critical patent/JP2006029241A/en
Publication of JP2006029241A5 publication Critical patent/JP2006029241A5/ja
Publication of JP4633396B2 publication Critical patent/JP4633396B2/en
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Claims (9)

原動機と連結された主軸に取り付けられた少なくとも１つの羽根車と、
該羽根車に対応して設けられた少なくとも１つのケーシングと、
該ケーシングの開放端を密閉するケーシングカバーと、
該ケーシングカバーを主軸が貫通する部分に設けられた軸封装置とを備えた遠心式ポンプにおいて、
前記ケーシングカバーを鋳造品からなる厚肉部材とプレス成形品からなり該厚肉部材の外面に密着固定された薄肉の耐食性のあるライニング部材とで構成したことを特徴とする遠心式ポンプ。 At least one impeller mounted on a main shaft coupled to a prime mover;
At least one casing provided corresponding to the impeller;
A casing cover for sealing the open end of the casing;
In a centrifugal pump provided with a shaft seal device provided in a portion through which the main shaft passes through the casing cover,
A centrifugal pump characterized in that the casing cover is composed of a thick-walled member made of a cast product and a thin-walled corrosion-resistant lining member made of a press-molded product and firmly fixed to the outer surface of the thick-walled member. 前記ライニング部材は前記厚肉部材に圧入により密着固定されていることを特徴とする請求項１記載の遠心式ポンプ。   2. The centrifugal pump according to claim 1, wherein the lining member is closely fixed to the thick member by press fitting. 前記厚肉部材の中央部には前記主軸が貫通する中空円筒状部が形成され、
前記ライニング部材は該中空円筒状部に嵌合する環状部を有し、
該環状部の端部は拡管され、該ライニング部材が厚肉部材から離脱しないようになっていることを特徴とする請求項１または２記載の遠心式ポンプ。 A hollow cylindrical portion through which the main shaft passes is formed in the central portion of the thick member,
The lining member has an annular portion that fits into the hollow cylindrical portion,
The centrifugal pump according to claim 1 or 2, wherein an end portion of the annular portion is expanded so that the lining member is not detached from the thick member. 前記拡管された部分は、前記軸封装置のパッキンの挿入の際にガイドになるようにテーパ形状を有していることを特徴とする請求項３記載の遠心式ポンプ。   4. The centrifugal pump according to claim 3, wherein the expanded portion has a tapered shape so as to serve as a guide when the packing of the shaft seal device is inserted. 前記ケーシングカバーの厚肉部材には大気側から液体側に連通する連通孔が形成され、
該連通孔には耐食性のパイプが挿入され、該パイプと前記ライニング部材とは溶接接合されていることを特徴とする請求項１乃至４のいずれか１項に記載の遠心式ポンプ。 The thick member of the casing cover is formed with a communication hole communicating from the atmosphere side to the liquid side,
The centrifugal pump according to any one of claims 1 to 4, wherein a corrosion-resistant pipe is inserted into the communication hole, and the pipe and the lining member are joined by welding. 前記溶接がレーザ溶接であることを特徴とする請求項５記載の遠心式ポンプ。   6. The centrifugal pump according to claim 5, wherein the welding is laser welding. ポンプ運転により発生する圧力水を外部に漏洩することを防止するための外胴を有し、該外胴の両端部もしくは一端部に密封用のＯリングを装着するための成形部を設けたことを特徴とする請求項１乃至６のいずれか１項に記載の遠心式ポンプ。 It has an outer cylinder for preventing the pressure water generated by the pump operation from leaking to the outside, and a molding part for mounting a sealing O-ring is provided at both ends or one end of the outer cylinder. The centrifugal pump according to any one of claims 1 to 6 . 前記外胴の成形部において、Ｏリングの脱落防止のために端部を外径側に拡大成形したことを特徴とする請求項７記載の遠心式ポンプ。 8. The centrifugal pump according to claim 7, wherein an end of the outer body is enlarged toward the outer diameter side to prevent the O-ring from falling off. 前記外胴が取り付けられる相手側部品には、Ｏリングの挿入がしやすいように、半径方向外方にテーパ状に拡がった部分が形成されていることを特徴とする請求項８記載の遠心式ポンプ。 9. The centrifugal type according to claim 8, wherein the other part to which the outer body is attached is formed with a radially outwardly tapered portion so that an O-ring can be easily inserted. pump.
JP2004210735A 2004-07-16 2004-07-16 Centrifugal pump Expired - Lifetime JP4633396B2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2004210735A JP4633396B2 (en) 2004-07-16 2004-07-16 Centrifugal pump
CNA2004800436049A CN1989347A (en) 2004-07-16 2004-11-12 Centrifugal pump
EP04799748A EP1774181A1 (en) 2004-07-16 2004-11-12 Centrifugal pump
PCT/JP2004/017203 WO2006008843A1 (en) 2004-07-16 2004-11-12 Centrifugal pump
US11/631,483 US20080019831A1 (en) 2004-07-16 2004-11-12 Centrifugal Pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004210735A JP4633396B2 (en) 2004-07-16 2004-07-16 Centrifugal pump

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2007129269A Division JP2007205360A (en) 2007-05-15 2007-05-15 Centrifugal pump

Publications (3)

Publication Number Publication Date
JP2006029241A JP2006029241A (en) 2006-02-02
JP2006029241A5 true JP2006029241A5 (en) 2007-06-28
JP4633396B2 JP4633396B2 (en) 2011-02-16

Family

ID=34959225

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004210735A Expired - Lifetime JP4633396B2 (en) 2004-07-16 2004-07-16 Centrifugal pump

Country Status (5)

Country Link
US (1) US20080019831A1 (en)
EP (1) EP1774181A1 (en)
JP (1) JP4633396B2 (en)
CN (1) CN1989347A (en)
WO (1) WO2006008843A1 (en)

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