JPS55164800A - Centrifugal pump - Google Patents

Centrifugal pump

Info

Publication number
JPS55164800A
JPS55164800A JP7124879A JP7124879A JPS55164800A JP S55164800 A JPS55164800 A JP S55164800A JP 7124879 A JP7124879 A JP 7124879A JP 7124879 A JP7124879 A JP 7124879A JP S55164800 A JPS55164800 A JP S55164800A
Authority
JP
Japan
Prior art keywords
impeller
gap
vane
edge section
front edge
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
Application number
JP7124879A
Other languages
Japanese (ja)
Inventor
Koichi Tsuzuki
Haruo Sankai
Masahiro Mase
Yasumasa Nakawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP7124879A priority Critical patent/JPS55164800A/en
Publication of JPS55164800A publication Critical patent/JPS55164800A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To remove a low-pressure section from an impeller's surface without deteriorating function of the pump and to prevent occurrence of cavitation, by providing an opening which pierces front shroud gap on an intake side of the impeller and the impeller's vane front edge section.
CONSTITUTION: A gap 5 is formed by weir rings 3 attached to a front shroud 1a and a casing 4. The front shroud 1a is provided with a small gap 6 as depicted in the sketch and it is so formed as to pierce the gap 5 and the impeller 1's vane 1b's front edge section. By using this mechanism, flow of water conducted from an outlet e of the impeller 1 to the gap 5 is made to pass through the small gap 6 and jetted out to the vane 1b's front edge section, and therefore, low-pressure sections which locally occur on the vane's surface are eliminated and occurrence of cavitation is prevented.
COPYRIGHT: (C)1980,JPO&Japio
JP7124879A 1979-06-08 1979-06-08 Centrifugal pump Pending JPS55164800A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7124879A JPS55164800A (en) 1979-06-08 1979-06-08 Centrifugal pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7124879A JPS55164800A (en) 1979-06-08 1979-06-08 Centrifugal pump

Publications (1)

Publication Number Publication Date
JPS55164800A true JPS55164800A (en) 1980-12-22

Family

ID=13455200

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7124879A Pending JPS55164800A (en) 1979-06-08 1979-06-08 Centrifugal pump

Country Status (1)

Country Link
JP (1) JPS55164800A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102207091A (en) * 2011-06-07 2011-10-05 张意立 High-concentration centrifugal pulp pump capable of spraying water on inner and outer corners
JP2014167268A (en) * 2013-02-28 2014-09-11 Mitsubishi Heavy Ind Ltd Multistage centrifugal fluid machine
JP2016070159A (en) * 2014-09-30 2016-05-09 株式会社日立製作所 Centrifugal type fluid machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102207091A (en) * 2011-06-07 2011-10-05 张意立 High-concentration centrifugal pulp pump capable of spraying water on inner and outer corners
JP2014167268A (en) * 2013-02-28 2014-09-11 Mitsubishi Heavy Ind Ltd Multistage centrifugal fluid machine
JP2016070159A (en) * 2014-09-30 2016-05-09 株式会社日立製作所 Centrifugal type fluid machine

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