US3656871A - Pump unit - Google Patents

Pump unit Download PDF

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Publication number
US3656871A
US3656871A US22296A US3656871DA US3656871A US 3656871 A US3656871 A US 3656871A US 22296 A US22296 A US 22296A US 3656871D A US3656871D A US 3656871DA US 3656871 A US3656871 A US 3656871A
Authority
US
United States
Prior art keywords
flange
outlet pipe
unit
pump unit
pump
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 - Lifetime
Application number
US22296A
Other languages
English (en)
Inventor
Konrad Valdemar Carlsson
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.)
Xylem Water Solutions AB
Original Assignee
Stenberg Flygt AB
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 Stenberg Flygt AB filed Critical Stenberg Flygt AB
Application granted granted Critical
Publication of US3656871A publication Critical patent/US3656871A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/605—Mounting; Assembling; Disassembling specially adapted for liquid pumps
    • F04D29/606—Mounting in cavities
    • F04D29/607—Mounting in cavities means for positioning from outside
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/26—Couplings of the quick-acting type in which the connection is made by transversely moving the parts together, with or without their subsequent rotation

Definitions

  • the flange is sealed against a flange of an outlet pipe when the pump is submerged and brought into contact with the outlet pipe.
  • a gripper on the pump engages the flange on the outlet pipe to hold the pump flange against the flange of the outlet pipe.
  • the uppermost part of the opposing flange surfaces are at a level not higher than the lowermost point of engagement of the gripper and the flange of the outlet pipe.
  • the invention relates to a pump unit immersed in a liquid, which can be easily removed from the liquid for maintenance of the unit.
  • An articulated joint between the sliding shoes and guide involves another disadvantage, namely that the pump unit, for example after maintenance, is difficult to fit to the guide again.
  • the pump unit for example after maintenance, is difficult to fit to the guide again.
  • the sliding shoes must be rotated so as to be properly positioned in relation to the guide. Locking effects may then readily arise, which greatly complicate the fitting of the sliding shoes to the guide.
  • the present invention is intended to eliminate these disadvantages and consists of a pump unit immersible in a liquid, comprising a liquidtight, enclosed electrical motor and a pump, preferentially a centrifugal pump.
  • the unit is arranged in the known manner to be steered into a guide device in the course of being raised from and lowered into the liquid.
  • the liquid outlet of the pump in the fully immersed position of the pump unit is caused, by a flange essentially parallel with the guide, to seal against a flanged outlet pipe for the liquid under the influence of a gripping device engaging with the flange of the outlet pipe.
  • the invention is characterized chiefly in that the uppermost portion of the opposing flange surfaces is situated at a level below or on the level with the bottommost point of engagement of the gripping device and the flange of the outlet pipe.
  • the connecting flange of the outlet pipe should suitably be designed so that the uppermost section of the surface intended to bear against the connecting flange of the pump unit is chamfered so as to engage with a corresponding chamfer in the lower section of the connecting flange of the pump unit as the pump unit is lowered. This ensures that the connecting flange of the pump unit, during lowering of the unit, slides down along the connecting flange of the outlet pipe.
  • the connecting flanges are pressed together when the gripper on the pump unit grips around the connecting flange of the outlet pipe.
  • the gripper and the surface of the connecting flange on the outlet pipe on the side opposite the pump unit, with shoulder surfaces oblique to a vertical line, should preferably be shaped so that a wedging eflect arises when the pump unit is lowered to the outlet pipe. Owing to the gravity of the pump unit the two connecting flanges are thereby pressed together.
  • the drawing shows a pump unit 3, which can be raised and lowered along a guide 9.
  • the pump unit 3 is steered in the guide 9 by means of a steering device rigidly attached to the pump unit 3 and having sliding shoes 7, 8.
  • a flange 10 arranged at the outlet of the pump is brought into engagement with a flange l 1 on an outlet pipe 2 for the pumped medium.
  • the connecting flanges 10 and 11 are chamfered on their opposing surfaces, the chamfer on the connecting flange 10 being situated on its bottommost section and the chamfer on the connecting flange 11 on its upper section.
  • the upper section of the connecting flange 11 is chamfered also on its surface on the side opposite from the pump unit, the which chamfer is designed to engage with an oblique shoulder surface on the gripper 4. In this way a wedging effect is obtained on immersion of the pump unit, so ensuring a good seal between flanges l0 and 11.
  • the gripper 4 and the connecting flanges 10, 11 are shaped so that the gripper 5 cannot be carried further down towards the outlet pipe 2 than that its free end 6 is on a level above or possibly on a level with the uppermost section 5 of the engaging surfaces between the connecting flanges 10, 11.
  • the advantage of this is that the pump unit can always be released from the outlet pipe even if the pump unit is lifted with a force which forms a certain angle with a vertical line. As a certain play cannot be avoided between the sliding shoes 7 and guide 9, the pump unit has a slight rotary movement round a shaft perpendicular to the plane of the drawing. When lifting of a pump unit of a type, this rotation means that the pump unit is rigidly locked to the flange of the outlet pipe.
  • An immersible pump unit for connection to an outlet pipe having a first flange, said pump unit comprising:
  • gripper means coupled to the exterior of said unit for engaging said first flange such that said first flange and said second flange are held together to form a liquidtight passage between said outlet pipe and said unit, and the lowermost point of engagement between said gripper means and said first flange is above or at the highest point at which said first and second flanges come together and said lowermost point is above the upper surface of said outlet whereby mutual interlocking between said first and second flanges is prevented.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
US22296A 1969-04-01 1970-03-24 Pump unit Expired - Lifetime US3656871A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE465569 1969-04-01

Publications (1)

Publication Number Publication Date
US3656871A true US3656871A (en) 1972-04-18

Family

ID=20264676

Family Applications (1)

Application Number Title Priority Date Filing Date
US22296A Expired - Lifetime US3656871A (en) 1969-04-01 1970-03-24 Pump unit

Country Status (12)

Country Link
US (1) US3656871A (xx)
JP (1) JPS4937441B1 (xx)
CA (1) CA922166A (xx)
CS (1) CS152351B2 (xx)
DE (1) DE2014270B2 (xx)
ES (1) ES378056A1 (xx)
FR (1) FR2042235A5 (xx)
GB (1) GB1267631A (xx)
HU (1) HU162654B (xx)
NL (1) NL7004549A (xx)
PL (1) PL80659B1 (xx)
SU (1) SU409441A3 (xx)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3771914A (en) * 1972-05-08 1973-11-13 C Crespo Connecting flange arrangement of submersible pump for fixed discharge outlet
US3810718A (en) * 1970-11-30 1974-05-14 A Blum Submersible pump
US3861834A (en) * 1970-11-30 1975-01-21 Albert Blum Submersible pump with guide means
US3877613A (en) * 1973-04-25 1975-04-15 Itt System for coupling pump units to outlets under water
US3880553A (en) * 1973-10-29 1975-04-29 Gorman Rupp Co Pumping system
US3885714A (en) * 1974-04-19 1975-05-27 Itt System for coupling pump units to outlets under water
US4060345A (en) * 1970-01-30 1977-11-29 Albert Blum Submersible pump with guide means
US4392790A (en) * 1980-06-24 1983-07-12 Ebara Corporation Coupling system for submergible pump
DE3152367C2 (de) * 1980-09-24 1986-08-28 Shin Meiwa Industry Co., Ltd., Nishinomiya, Hyogo Tauchmotorpumpe

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55167483U (xx) * 1979-05-17 1980-12-02
SE449896B (sv) * 1981-11-30 1987-05-25 Flygt Ab Drenkbart pumpaggregat och anordning for att styra detsamma under flyttning till och fran dess arbetslege
JPS61500323A (ja) * 1983-10-21 1986-02-27 ユ−ラ・ボ−ツ・スウエ−デン・ア−・ベ− ポンプステ−シヨン
EP2489799B1 (de) * 2011-02-16 2014-08-20 Grundfos Management a/s Abwasserhebeanlage

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3136259A (en) * 1961-11-07 1964-06-09 Mowid Anstalt Sump pump plant
DE1187931B (de) * 1962-07-20 1965-02-25 Klein Schanzlin & Becker Ag In einen Schacht versenkbares, aus einem wasserdicht gekapselten Elektromotor und einer Kreiselpumpe bestehendes Pumpenaggregat, das an einer Leitschiene gefuehrt ist
US3234885A (en) * 1963-02-20 1966-02-15 Flygts Pumpar Ab Pump device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1235747B (de) * 1964-08-04 1967-03-02 Klein Schanzlin & Becker Ag Flanschverbindung fuer ein Tauchpumpenaggregat

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3136259A (en) * 1961-11-07 1964-06-09 Mowid Anstalt Sump pump plant
DE1187931B (de) * 1962-07-20 1965-02-25 Klein Schanzlin & Becker Ag In einen Schacht versenkbares, aus einem wasserdicht gekapselten Elektromotor und einer Kreiselpumpe bestehendes Pumpenaggregat, das an einer Leitschiene gefuehrt ist
US3234885A (en) * 1963-02-20 1966-02-15 Flygts Pumpar Ab Pump device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4060345A (en) * 1970-01-30 1977-11-29 Albert Blum Submersible pump with guide means
US3810718A (en) * 1970-11-30 1974-05-14 A Blum Submersible pump
US3861834A (en) * 1970-11-30 1975-01-21 Albert Blum Submersible pump with guide means
US3771914A (en) * 1972-05-08 1973-11-13 C Crespo Connecting flange arrangement of submersible pump for fixed discharge outlet
US3877613A (en) * 1973-04-25 1975-04-15 Itt System for coupling pump units to outlets under water
US3880553A (en) * 1973-10-29 1975-04-29 Gorman Rupp Co Pumping system
US3885714A (en) * 1974-04-19 1975-05-27 Itt System for coupling pump units to outlets under water
US4392790A (en) * 1980-06-24 1983-07-12 Ebara Corporation Coupling system for submergible pump
DE3152367C2 (de) * 1980-09-24 1986-08-28 Shin Meiwa Industry Co., Ltd., Nishinomiya, Hyogo Tauchmotorpumpe

Also Published As

Publication number Publication date
SU409441A3 (xx) 1973-11-30
NL7004549A (xx) 1970-10-05
DE2014270B2 (de) 1973-09-06
CA922166A (en) 1973-03-06
HU162654B (en) 1973-03-28
ES378056A1 (es) 1973-02-01
GB1267631A (en) 1972-03-22
FR2042235A5 (xx) 1971-02-05
JPS4937441B1 (xx) 1974-10-09
DE2014270A1 (de) 1970-12-17
PL80659B1 (xx) 1975-08-30
CS152351B2 (xx) 1973-12-19

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