EP1245833A1 - Boítier hélicoidal pour une pompe centrifuge avec en-tête à deux parties et de puisard filtrant avec séparateur d'air coaxial - Google Patents

Boítier hélicoidal pour une pompe centrifuge avec en-tête à deux parties et de puisard filtrant avec séparateur d'air coaxial Download PDF

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Publication number
EP1245833A1
EP1245833A1 EP01130582A EP01130582A EP1245833A1 EP 1245833 A1 EP1245833 A1 EP 1245833A1 EP 01130582 A EP01130582 A EP 01130582A EP 01130582 A EP01130582 A EP 01130582A EP 1245833 A1 EP1245833 A1 EP 1245833A1
Authority
EP
European Patent Office
Prior art keywords
wet well
spiral
filter
water
separator
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.)
Granted
Application number
EP01130582A
Other languages
German (de)
English (en)
Other versions
EP1245833B1 (fr
Inventor
Alberto Spaggiari
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.)
Otma SNC Di Spaggiari E Nasi
Original Assignee
Otma SNC Di Spaggiari E Nasi
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 Otma SNC Di Spaggiari E Nasi filed Critical Otma SNC Di Spaggiari E Nasi
Publication of EP1245833A1 publication Critical patent/EP1245833A1/fr
Application granted granted Critical
Publication of EP1245833B1 publication Critical patent/EP1245833B1/fr
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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps 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
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps

Definitions

  • the invented apparatus refers to a new change into the centrifugal pump spiral in particular to be used inside the suspended boilers for the indipendent heating of rooms and for the sanitary hot water production, both for inside than outside use.
  • the new apparatus integrates into a single body, to be actuated by molding, injection, fusion, forming the pump spiral in its conventional winding form, a two-sided header so to indifferently made a quick link both from the left side than from right one of the multiworking hydraulic groups and a air separator-filter wet well, coaxial with the pump vertical axis, to be actuated to have a high capacity of harvest and separation of the air contained into the heating plants and to be shaped, re-entering in its lower part, to contain the depth encumbrance.
  • the invented apparatus permits to the wall boiler makers to have available a single body equipped also with the pump motor and comprising the automatic floating valve and the safety valve against the overpressures. It realizes: a) an encumbrance reduction thanks to the high integration with consequent an encumbrance dimension compaction of the same boilers; b) a reduction both of the production costs, being provided the use of composite (engineering resins) alternatively to the conventional materials than of the operating costs actuating a considerable reduction of the electric use; c) a high integration of the operations with better performances; d) an improvement of the operating silence.
  • the invented apparatus also integrates in the spiral a conveyor element that avoids the water recirculation on the centrifuge impeller so permitting the same performance having a pump with a less power motor.
  • Said flow conveyor element is obtained inside the spiral, adjacent to the outside diameter of the centrifuge impeller and in joint with the pump exhaust duct.
  • the spirals of the centrifugal pump used in the wall boilers when they integrate an air separator it is usually off-line in comparison with the vertical axis of the pump and moreover they have a single hydraulic entrance connection so needing to have the additional elements to have the function of hydraulic interfaces.
  • a three-way valve is provided in some embodiments.
  • the invented apparatus consists of a single body A-B forming the centrifugal pump spiral having in its lower part the hydraulic collector A which is expanding, in the upper part, back to the spiral, in a coaxial air-separator filter wet well B.
  • Said hydraulic collector A is formed by water input channelling with inlets 1a, 2a, 3a and 4a of which the inlets 1a and 4a with only one connection way while the inlets 2a and 3a to be reversible so to be connected on one of the two sides on the base of the plant necessities.
  • the spiral 7b is provided with a conveyor element 8b having necessary dimension and to be placed near the outside diameter of the centrifugal impeller beginning to the inizial point 9b so avoiding the water recirculation.
  • the invented apparatus is illustated in indicative way in the drawings of sheets 1, 2, 3 and 4 where sheets 1, 2 and 3 show the basic version of the apparatus while sheet 4 shows the apparatus where the spiral 7b is provided with the conveyor element 8b.
  • sheet 1 fig. 1 is overall side view of the apparatus A-B with underlying the hydraulic collector and in the upper part the air separator-filter wet well. Fig.
  • FIG. 2 is frontal view of the same overall apparatus A-B with the centrifugal impeller C and with direction arrows from the inlet conduit 3b to the outlet conduit 4b.
  • sheet 2 fig. 3 is longitudinal secion view B-B of the wet well upper part.
  • Fig. 4 is transversal section view A-A.
  • sheet 3 fig. 5 is perspective view of the overall apparatus A-B.
  • sheet 4 fig. 6 is frontal view in the version with the conveyor element 8b.
  • the fig. 7 is perspective view of the overall apparatus A-B in the version with the conveyor element 8b.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Cyclones (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Details Of Reciprocating Pumps (AREA)
EP01130582A 2001-03-30 2001-12-21 Boítier hélicoidal pour une pompe centrifuge avec en-tête à deux parties et de puisard filtrant avec séparateur d'air coaxial Expired - Lifetime EP1245833B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBO010188 2001-03-30
IT2001BO000188A ITBO20010188A1 (it) 2001-03-30 2001-03-30 Apparato integrante nella voluta di una pompa centrifuga un collettore idraulico ambidestro ed un pozzetto filtro/separatore aria coassiale

Publications (2)

Publication Number Publication Date
EP1245833A1 true EP1245833A1 (fr) 2002-10-02
EP1245833B1 EP1245833B1 (fr) 2004-08-25

Family

ID=11439233

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01130582A Expired - Lifetime EP1245833B1 (fr) 2001-03-30 2001-12-21 Boítier hélicoidal pour une pompe centrifuge avec en-tête à deux parties et de puisard filtrant avec séparateur d'air coaxial

Country Status (4)

Country Link
EP (1) EP1245833B1 (fr)
AT (1) ATE274644T1 (fr)
DE (1) DE60105118T2 (fr)
IT (1) ITBO20010188A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3973871A (en) * 1973-10-26 1976-08-10 Ateliers De Constructions Electriques De Charlerol (Acec) Sump pump
US4676065A (en) * 1985-03-04 1987-06-30 Hale Fire Pump Company Portable engine-pump assembly
EP0314659A2 (fr) * 1987-10-26 1989-05-03 Kvaerner-Eureka A/S Unité de pompe submersible verticale
EP0619070A2 (fr) * 1993-04-07 1994-10-12 HYDOR S.r.l. Dispositif de filtration externe en particulier pour des aquariums et pour réservoirs d'eau ornementales

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3973871A (en) * 1973-10-26 1976-08-10 Ateliers De Constructions Electriques De Charlerol (Acec) Sump pump
US4676065A (en) * 1985-03-04 1987-06-30 Hale Fire Pump Company Portable engine-pump assembly
EP0314659A2 (fr) * 1987-10-26 1989-05-03 Kvaerner-Eureka A/S Unité de pompe submersible verticale
EP0619070A2 (fr) * 1993-04-07 1994-10-12 HYDOR S.r.l. Dispositif de filtration externe en particulier pour des aquariums et pour réservoirs d'eau ornementales

Also Published As

Publication number Publication date
ITBO20010188A0 (it) 2001-03-30
EP1245833B1 (fr) 2004-08-25
ATE274644T1 (de) 2004-09-15
DE60105118D1 (de) 2004-09-30
ITBO20010188A1 (it) 2002-09-30
DE60105118T2 (de) 2005-03-31

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