EP0528345A2 - Chapeau-diffuseur repoussant la pluie - Google Patents

Chapeau-diffuseur repoussant la pluie Download PDF

Info

Publication number
EP0528345A2
EP0528345A2 EP92113728A EP92113728A EP0528345A2 EP 0528345 A2 EP0528345 A2 EP 0528345A2 EP 92113728 A EP92113728 A EP 92113728A EP 92113728 A EP92113728 A EP 92113728A EP 0528345 A2 EP0528345 A2 EP 0528345A2
Authority
EP
European Patent Office
Prior art keywords
diffuser
rain
jacket
hood according
drain core
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
EP92113728A
Other languages
German (de)
English (en)
Other versions
EP0528345B1 (fr
EP0528345A3 (en
Inventor
Klaus Beck
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.)
KLAUS BECK LIZENZVERWALTUNG
Original Assignee
KLAUS BECK LIZENZVERWALTUNG
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 KLAUS BECK LIZENZVERWALTUNG filed Critical KLAUS BECK LIZENZVERWALTUNG
Publication of EP0528345A2 publication Critical patent/EP0528345A2/fr
Publication of EP0528345A3 publication Critical patent/EP0528345A3/de
Application granted granted Critical
Publication of EP0528345B1 publication Critical patent/EP0528345B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L17/00—Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues
    • F23L17/02—Tops for chimneys or ventilating shafts; Terminals for flues
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L17/00—Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues
    • F23L17/02—Tops for chimneys or ventilating shafts; Terminals for flues
    • F23L17/14—Draining devices

Definitions

  • the invention relates to a rain deflector diffuser hood according to the preamble of claim 1.
  • Rain deflector hoods which are also referred to as deflector hoods, serve to prevent rainwater from penetrating, especially in exhaust air ducts, and thus to prevent the flow in the exhaust air duct from being adversely affected and sooting.
  • a deflector hood of the type mentioned at the outset which comprises an outer jacket as an attachment on an exhaust air duct and an inner body held in the outer jacket (DE 34 42 588 A1).
  • the outer jacket extends at a lower opening and an upper opening to a middle level, which lies between the two openings.
  • An inner body, which is held in the outer casing widens from a base surface to the middle plane and narrows again from the middle plane to the outflow opening, in such a way that an annular space which is formed between the outer casing and the inner body is one from the inflow cross section to the outflow cross section enlarging cross section.
  • the deflector hood continues above the annular space towards the outlet opening, where it does not enclose the inner body and thus does not form an annular blow-out nozzle together with the inner body. - If this deflector hood is used to attempt to achieve a blowing speed prescribed by law, it must be acted on at an even higher speed on the lower inlet side of the exhaust air. The delivery rate and the energy input for this are high.
  • a major disadvantage consists in that part of the exhaust air is pushed back obliquely downwards from the outlet connection. This can be harmful, even dangerous, for example when extracting digestories in chemical laboratories for maintenance personnel in the area of the rain deflector diffuser hood.
  • the diffuser jacket is designed to widen outwards, towards the upper opening, while the inner body consists of a funnel tapering downwards, the upper opening of which lies approximately in the central plane, from which the Diffuser hood converges in the shape of a truncated cone. From the lowest point of the funnel, a rain drain pipe leads further down out of the diffuser jacket (printed by Beck Kunststoffverformungs-GmbH, Frankfurt).
  • the flow resistance of this deflector hood is not more favorable than that of the known deflector hood described above.
  • the diffuser jacket opens into a cylindrical ring, but which is not opposed by any section of the inner body.
  • a diffuser jacket of another known deflector hood also has such an upper cylindrical section, but here the diffuser jacket is shaped as a cylinder with the exception of a transition section to the upper opening (document from Beck Kunststoffverformungs-GmbH, Frankfurt).
  • the inner body is also funnel-shaped here. - This deflector hood has an excessively high flow resistance.
  • a chimney cap in the form of a conical casing with a pear-shaped insert body arranged in it delimits an annular outlet opening (DE-PS 742 942). Also with this chimney cap however, part of the exhaust air occurs from a lower opening in the area of support angles which hold the casing.
  • the invention has for its object to provide a rain deflector hood improved effectiveness, in which in particular a recoil of the exhaust air, so that it flows out of the outlet nozzle at an angle downwards, does not occur.
  • a hub drain core of cylindrical shape is used, as is known in connection with a diffuser with an integrated axial fan.
  • a diffuser with an integrated axial fan i.a.
  • the rain deflector diffuser hood according to the invention has the significant advantage that, as before, there is no back pressure in the hood, which has the consequence that the exhaust air partially flows out vertically downwards through a rain collecting trough and a water drain pipe, which means that with toxic exhaust air ( Gases) can otherwise endanger people who are in the vicinity of the rain deflector diffuser hood, for example to carry out maintenance work.
  • the rain deflector diffuser hood doesn't just work according to the Diffuser principle, since it has a nozzle effect in the area of the blow-out mouthpiece, which results in an increase in the outlet speed.
  • the blow-out mouthpiece is curved in longitudinal section to achieve the nozzle effect and is shaped with degressively decreasing cross-sections from an aerodynamic point of view.
  • the hub drain core has an upwardly widening section in the region of the blow-out nozzle.
  • the exhaust air gas outlet speed can be adjusted without changing the gas inlet speed and the inlet cross section by the formation of the annular blow-out nozzle.
  • at least one of the parts forming the annular blow-out nozzle is advantageously exchangeable.
  • the diffuser jacket can contain additional inflow openings, which are arranged in particular in the region of the induction chamber.
  • the diffuser hood, the hub drain core and the gas inlet connector are each advantageous as one-piece molded parts, i.e. seamless and without welds.
  • molded parts can be made from plastic materials such as PVC, PE or PP, but depending on the application, they can also be made from sheet metal. In addition to steel or stainless steel, a non-ferrous metal can be selected as the sheet material.
  • the rain deflector diffuser hood according to the invention comprises a diffuser jacket 1 and an essentially cylindrical hub drain core 2 held in it. It projects into the diffuser jacket below, an upwardly conically tapered gas inlet connection 3, to which an exhaust air duct, not shown, adjoins at the bottom.
  • the hub drain core has a cylindrical main section, the extent of which is evident from the drawing.
  • the hub drain core is closed at the top.
  • an annular blow-out nozzle 5 is formed from the hub drain core by the cross-sections of the hub drain core widening degressively upwards.
  • This shape of the hub drain core and the curved shape of a blow-out mouth piece 6 of the diffuser shell which forms the outer boundary of the blow-out nozzle and which narrows upward are shown in detail in FIG. 1.
  • the blow-out mouthpiece should be so aerodynamically shaped in connection with the opposite section of the hub drain core that a jet effect occurs for increasing the speed of the exhaust gas without backflow.
  • the hub drain core 2 is held in the diffuser shell by webs 7-9, which are attached here to the cylindrical main section.
  • the cylindrical section of the hub drain core merges at the bottom into a spherical cap 10, which is located in a vertical projection 11 above the inlet cross section 12 of the gas inlet connector 3.
  • a eaves gutter 13 is arranged, which collects the rainwater entering through the outlet nozzle 5 and drains it into one of three villi 14-16.
  • the villi open out via an induction chamber 17, which is located between the gas inlet nozzle which tapers conically upwards 3 and an outwardly bulged part of the diffuser shell 1 is formed. It should be noted at this point that the diffuser jacket also has a larger bulge in the area of the largest cross section of the spherical cap, which optimizes the flow conditions in the diffuser jacket.
  • the induction chamber thus forms a collecting chamber for the eaves water, from which the eaves water can flow downwards and outwards, without being accompanied by an exhaust air flow in the same direction. Rather, outside air is sucked up through the rain drain pipe due to the induction effect, which means an increase in speed in the diffuser jacket, and entrained in the diffuser jacket. Additional flow openings, which can also lead into the interior of the diffuser, are not shown in the drawing.
  • the hub drain core 2 is also cylindrical in the upper region, where it delimits the blow-out nozzle on the inside. It is therefore not necessary to change the hub shape compared to the lower hub area adjoining this area. Otherwise, the variant according to FIG. 3 is designed to match the rain deflector diffuser hood according to FIG. 1. Identical parts are provided with the same reference numerals in FIGS. 1 and 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Outer Garments And Coats (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
EP92113728A 1991-08-17 1992-08-12 Chapeau-diffuseur repoussant la pluie Expired - Lifetime EP0528345B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4127247 1991-08-17
DE4127247A DE4127247C2 (de) 1991-08-17 1991-08-17 Regenabweisdiffusor-Haube

Publications (3)

Publication Number Publication Date
EP0528345A2 true EP0528345A2 (fr) 1993-02-24
EP0528345A3 EP0528345A3 (en) 1993-05-19
EP0528345B1 EP0528345B1 (fr) 1995-04-26

Family

ID=6438528

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92113728A Expired - Lifetime EP0528345B1 (fr) 1991-08-17 1992-08-12 Chapeau-diffuseur repoussant la pluie

Country Status (3)

Country Link
EP (1) EP0528345B1 (fr)
AT (1) ATE121829T1 (fr)
DE (1) DE4127247C2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006001768A1 (fr) * 2004-06-29 2006-01-05 Elekta Ab (Publ) Dispositif et procede de detection de collision

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10127796C1 (de) * 2001-06-07 2002-10-10 Oskar Fleck Rohrkanal mit Auffangrinne für Kanalkondensate

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1638698A (en) * 1925-04-18 1927-08-09 Miller Arthur Ventilator
DE742942C (de) * 1941-12-28 1943-12-15 Bernhard Rebhuhn Schornsteinaufsatz
DE3442588A1 (de) * 1984-11-22 1986-05-22 Heinrich Brinkmann Anlagenverpachtung GmbH & Co KG, 6072 Dreieich Deflektorhaube

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH656937A5 (de) * 1982-09-24 1986-07-31 Superpart Ag Aufsatz fuer abgasleitungen.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1638698A (en) * 1925-04-18 1927-08-09 Miller Arthur Ventilator
DE742942C (de) * 1941-12-28 1943-12-15 Bernhard Rebhuhn Schornsteinaufsatz
DE3442588A1 (de) * 1984-11-22 1986-05-22 Heinrich Brinkmann Anlagenverpachtung GmbH & Co KG, 6072 Dreieich Deflektorhaube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006001768A1 (fr) * 2004-06-29 2006-01-05 Elekta Ab (Publ) Dispositif et procede de detection de collision

Also Published As

Publication number Publication date
DE4127247C2 (de) 1995-02-23
DE4127247A1 (de) 1993-02-18
EP0528345B1 (fr) 1995-04-26
EP0528345A3 (en) 1993-05-19
ATE121829T1 (de) 1995-05-15

Similar Documents

Publication Publication Date Title
DE2103035C3 (de) Lufteinlaß für Gasturbinentriebwerke
DE2656151C2 (de) Vorrichtung zum Abtrennen von Festkörperverunreinigungen aus einem Gasstrom
DE2032819A1 (de) Hydrozyklon
DE4036845C2 (de) Abzug mit Einströmprofil
EP3348804B1 (fr) Réservoir de lubrifiant pour un système hydraulique
DE3624086C2 (fr)
EP1870203A1 (fr) Machine-outil dotée d'un capot d'aspiration
EP0528345B1 (fr) Chapeau-diffuseur repoussant la pluie
DE4243834C3 (de) Abgaserfassungshaube mit stabilisierter Drallströmung
WO2023041667A1 (fr) Séparateur de liquide
WO2005022046A1 (fr) Systeme servant a aspirer en particulier de l'air charge de substances polluantes
DE102007004879A1 (de) Abzugsschacht
DE9110186U1 (de) Regenabweisdiffusor-Haube
DE4132911A1 (de) Luftdurchlass
EP0605821B1 (fr) Hotte d'évacuation de fumées
DE102006053881A1 (de) Zuluftverteiler mit Prallplatte
DE2138746A1 (de) Brenner für flüssigen Brennstoff
EP0293332B1 (fr) Chapeau de cheminée
DE9002751U1 (de) Luftauslaßvorrichtung zur Belüftung von Räumen
DE2712444A1 (de) Wirbelkammerventil
EP4043652A1 (fr) Interrupteur de conduite et système de rinçage en étant équipé
DE8901232U1 (de) Rohrmühlen-Trennwand
DE726913C (de) Schornsteinhaube, insbesondere fuer Laternen und OEfen in Eisenbahnfahrzeugen
EP4253674A1 (fr) Interrupteur de conduit et système de rinçage équipé d'un tel interrupteur
DE2407484A1 (de) Flammrohr fuer gasturbinentriebwerke

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT CH FR GB IT LI SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT CH FR GB IT LI SE

17P Request for examination filed

Effective date: 19931118

17Q First examination report despatched

Effective date: 19940912

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH FR GB IT LI SE

REF Corresponds to:

Ref document number: 121829

Country of ref document: AT

Date of ref document: 19950515

Kind code of ref document: T

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19950504

ITF It: translation for a ep patent filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19980827

Year of fee payment: 7

Ref country code: GB

Payment date: 19980827

Year of fee payment: 7

Ref country code: FR

Payment date: 19980827

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19980828

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19980901

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990812

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990812

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19990830

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990831

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990831

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19990812

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000428

EUG Se: european patent has lapsed

Ref document number: 92113728.7

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050812