EP0258525A3 - Vacuum dewatering installation - Google Patents

Vacuum dewatering installation Download PDF

Info

Publication number
EP0258525A3
EP0258525A3 EP87104283A EP87104283A EP0258525A3 EP 0258525 A3 EP0258525 A3 EP 0258525A3 EP 87104283 A EP87104283 A EP 87104283A EP 87104283 A EP87104283 A EP 87104283A EP 0258525 A3 EP0258525 A3 EP 0258525A3
Authority
EP
European Patent Office
Prior art keywords
vacuum
vacuum conduit
water
extraction valve
air
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
EP87104283A
Other languages
German (de)
Other versions
EP0258525B1 (en
EP0258525A2 (en
Inventor
Harald Michael
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT87104283T priority Critical patent/ATE53415T1/en
Publication of EP0258525A2 publication Critical patent/EP0258525A2/en
Publication of EP0258525A3 publication Critical patent/EP0258525A3/en
Application granted granted Critical
Publication of EP0258525B1 publication Critical patent/EP0258525B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
    • E03F1/006—Pneumatic sewage disposal systems; accessories specially adapted therefore

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Sewage (AREA)
  • Refuse Collection And Transfer (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

1. A vacuum drainage installation having one or more collection tanks in which an underpressure prevails and to which are connected vacuum conduits (10) which are laid alternately ascending and descending and to which connecting ducts of the units to be drained are connected via a respective extraction valve, normal pressure prevailing in said connecting ducts, which extraction valve is opened automatically when a given amount of water of from 5 to 40 litres has accumulated upstream thereof, and which during each opening operation admits air together with the waste water into the vacuum conduit (10), wherein at least one venting aperture (34), which is controlled by a control device as a function of the water level or pressure at a given location of the vacuum conduit (10), is provided in the vacuum conduit (10), characterised in that the aperture width of the venting aperture (34) can be controlled continuously or in a plurality of stages within a range in which such small quantities of air are admitted that said air bubbles through water columns present in the vacuum conduit (10).
EP87104283A 1986-08-23 1987-03-24 Vacuum dewatering installation Expired - Lifetime EP0258525B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87104283T ATE53415T1 (en) 1986-08-23 1987-03-24 VACUUM DRAINAGE SYSTEM.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3628725 1986-08-23
DE19863628725 DE3628725A1 (en) 1986-08-23 1986-08-23 VACUUM DRAINAGE SYSTEM

Publications (3)

Publication Number Publication Date
EP0258525A2 EP0258525A2 (en) 1988-03-09
EP0258525A3 true EP0258525A3 (en) 1988-10-05
EP0258525B1 EP0258525B1 (en) 1990-06-06

Family

ID=6308075

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87104283A Expired - Lifetime EP0258525B1 (en) 1986-08-23 1987-03-24 Vacuum dewatering installation

Country Status (3)

Country Link
EP (1) EP0258525B1 (en)
AT (1) ATE53415T1 (en)
DE (2) DE3628725A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4020062A1 (en) * 1990-06-23 1992-01-09 Harald Michael Removal of waste water by suction pipe - which has holes for injection of air to form air bubbles for lifting effect
JP3869573B2 (en) 1998-05-06 2007-01-17 積水化学工業株式会社 Vacuum sewage system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3730884A (en) * 1971-04-02 1973-05-01 B Burns Method and apparatus for conveying sewage
DE2637962A1 (en) * 1976-08-24 1978-03-02 Electrolux Gmbh VACUUM DRAINAGE SYSTEM
US4500035A (en) * 1982-06-25 1985-02-19 Hitachi, Ltd. Expansion valve

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3730884A (en) * 1971-04-02 1973-05-01 B Burns Method and apparatus for conveying sewage
DE2637962A1 (en) * 1976-08-24 1978-03-02 Electrolux Gmbh VACUUM DRAINAGE SYSTEM
US4500035A (en) * 1982-06-25 1985-02-19 Hitachi, Ltd. Expansion valve

Also Published As

Publication number Publication date
DE3628725A1 (en) 1988-02-25
EP0258525B1 (en) 1990-06-06
EP0258525A2 (en) 1988-03-09
ATE53415T1 (en) 1990-06-15
DE3763090D1 (en) 1990-07-12

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