JPS5685598A - Underwater pump with sand removing device - Google Patents

Underwater pump with sand removing device

Info

Publication number
JPS5685598A
JPS5685598A JP16148179A JP16148179A JPS5685598A JP S5685598 A JPS5685598 A JP S5685598A JP 16148179 A JP16148179 A JP 16148179A JP 16148179 A JP16148179 A JP 16148179A JP S5685598 A JPS5685598 A JP S5685598A
Authority
JP
Japan
Prior art keywords
sand
water
pump
centrifugal separator
layers
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
JP16148179A
Other languages
Japanese (ja)
Inventor
Akira Nakasuji
Tetsuro Akasaki
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 JP16148179A priority Critical patent/JPS5685598A/en
Publication of JPS5685598A publication Critical patent/JPS5685598A/en
Pending legal-status Critical Current

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  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

PURPOSE: To enable removal of fine sand, thereby preventing suction of sand into the impeller, by a method wherein de Laval type, centrifugal separator rotated by the pump driving shaft in the water stream is provided on the intake side of the pump.
CONSTITUTION: Between the underwater motor 10 and the impeller 14, a de Laval type centrifugal separator 28, consisting of several numbers of thin, umbrella shaped disk superposed at the predetermined intervals and rotating incorporated with the pump driving shaft 12, is provided in the water passage on the intake side of the pump. With this constitution, when water containing sand is about passing through the layers of the disk of centrifugal separator 28 from outside to inside, water and sand revolve around the driving shaft 12 because the intervals among disks in layers are made small, and with the centrifugal function, the sand of large specific gravity is exhausted, but only water can passes through the water passage 30 which is in the inside circumferencial part of the separator. Accordingly, locking in the disks in layers of the centrifugal separator 28 by sand can be prevented, as well as fine sand can be discharged.
COPYRIGHT: (C)1981,JPO&Japio
JP16148179A 1979-12-14 1979-12-14 Underwater pump with sand removing device Pending JPS5685598A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16148179A JPS5685598A (en) 1979-12-14 1979-12-14 Underwater pump with sand removing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16148179A JPS5685598A (en) 1979-12-14 1979-12-14 Underwater pump with sand removing device

Publications (1)

Publication Number Publication Date
JPS5685598A true JPS5685598A (en) 1981-07-11

Family

ID=15735899

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16148179A Pending JPS5685598A (en) 1979-12-14 1979-12-14 Underwater pump with sand removing device

Country Status (1)

Country Link
JP (1) JPS5685598A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103104507A (en) * 2013-02-03 2013-05-15 张延兵 Submersible slurry pump with inlet anti-blocking protection device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103104507A (en) * 2013-02-03 2013-05-15 张延兵 Submersible slurry pump with inlet anti-blocking protection device
CN103104507B (en) * 2013-02-03 2015-11-25 张延兵 A kind of diving slurry pump with import anti-blocking-up protection apparatus

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