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EP2492511A3 - Circulation pump - Google Patents

Circulation pump Download PDF

Info

Publication number
EP2492511A3
EP2492511A3 EP11174958.6A EP11174958A EP2492511A3 EP 2492511 A3 EP2492511 A3 EP 2492511A3 EP 11174958 A EP11174958 A EP 11174958A EP 2492511 A3 EP2492511 A3 EP 2492511A3
Authority
EP
European Patent Office
Prior art keywords
pump
hot water
casing
water
cooling
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.)
Withdrawn
Application number
EP11174958.6A
Other languages
German (de)
French (fr)
Other versions
EP2492511A2 (en
Inventor
Osamu Kimura
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.)
Torishima Pump Manufacturing Co Ltd
Original Assignee
Torishima Pump Manufacturing Co 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
Priority claimed from JP2011038595A external-priority patent/JP5798339B2/en
Priority claimed from JP2011038596A external-priority patent/JP5693291B2/en
Priority claimed from JP2011038591A external-priority patent/JP5798338B2/en
Application filed by Torishima Pump Manufacturing Co Ltd filed Critical Torishima Pump Manufacturing Co Ltd
Publication of EP2492511A2 publication Critical patent/EP2492511A2/en
Publication of EP2492511A3 publication Critical patent/EP2492511A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/0606—Canned motor pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/10—Shaft sealings
    • F04D29/12—Shaft sealings using sealing-rings
    • F04D29/126—Shaft sealings using sealing-rings especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
    • F04D29/588—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps cooling or heating the machine

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

In a circulation pump for taking in hot water from an intake portion (34) of a pump casing (33) and discharging the hot water from a discharge portion (35) by rotating a rotating shaft (37) to rotate an impeller (40) disposed in the pump casing (33) and for circulating cooling water in a motor casing (10) while cooling the cooling water with a circulating cooling mechanism (43), a hot water inflow preventing means (an external cooling water supply mechanism (48) or a pump (57)) for preventing the hot water in the pump casing (33) from flowing into the motor casing (10) by generating a stream of water in the motor casing (10) at least during warm standby in which the rotating shaft (37) is stopped is provided.
EP11174958.6A 2011-02-24 2011-07-22 Circulation pump Withdrawn EP2492511A3 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2011038595A JP5798339B2 (en) 2011-02-24 2011-02-24 Circulation pump
JP2011038596A JP5693291B2 (en) 2011-02-24 2011-02-24 Circulation pump
JP2011038591A JP5798338B2 (en) 2011-02-24 2011-02-24 Circulation pump

Publications (2)

Publication Number Publication Date
EP2492511A2 EP2492511A2 (en) 2012-08-29
EP2492511A3 true EP2492511A3 (en) 2015-08-26

Family

ID=44651031

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11174958.6A Withdrawn EP2492511A3 (en) 2011-02-24 2011-07-22 Circulation pump

Country Status (1)

Country Link
EP (1) EP2492511A3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2728509C2 (en) * 2015-11-02 2020-07-30 Зульцер Мэнэджмент Аг Pump assembly for transferring process fluid
RU2737931C2 (en) * 2016-09-23 2020-12-07 Зульцер Мэнэджмент Аг Centrifugal pump for movement of fluid medium

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110594172B (en) * 2019-08-05 2020-10-02 重庆和睦环保工程有限公司 Centrifugal draught fan for boiler
RU2752789C1 (en) * 2020-08-10 2021-08-05 Общество с ограниченной ответственностью «Лизинговая Компания «ЛИАКОН» Hermetically sealed electric pump
CN113417848A (en) * 2021-07-01 2021-09-21 哈尔滨电气动力装备有限公司 Heat shield with ceramic fiber structure

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3574473A (en) * 1968-01-24 1971-04-13 Klein Schanzlin & Becker Ag Method and apparatus for cooling parts of pumps in nuclear reactors or the like
JPH01174231A (en) * 1987-12-25 1989-07-10 Mitsubishi Heavy Ind Ltd High-temperature and high-pressure fluid pump driven by canned motor or submersible motor
WO1996028663A1 (en) * 1995-03-13 1996-09-19 Westinghouse Electric Corporation A nuclear reactor coolant pump

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3597079B2 (en) 1999-05-28 2004-12-02 株式会社 日立インダストリイズ Internal pump

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3574473A (en) * 1968-01-24 1971-04-13 Klein Schanzlin & Becker Ag Method and apparatus for cooling parts of pumps in nuclear reactors or the like
JPH01174231A (en) * 1987-12-25 1989-07-10 Mitsubishi Heavy Ind Ltd High-temperature and high-pressure fluid pump driven by canned motor or submersible motor
WO1996028663A1 (en) * 1995-03-13 1996-09-19 Westinghouse Electric Corporation A nuclear reactor coolant pump

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2728509C2 (en) * 2015-11-02 2020-07-30 Зульцер Мэнэджмент Аг Pump assembly for transferring process fluid
RU2737931C2 (en) * 2016-09-23 2020-12-07 Зульцер Мэнэджмент Аг Centrifugal pump for movement of fluid medium

Also Published As

Publication number Publication date
EP2492511A2 (en) 2012-08-29

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RIC1 Information provided on ipc code assigned before grant

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