EP0184024A1 - Chapeau avec déflecteur - Google Patents

Chapeau avec déflecteur Download PDF

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Publication number
EP0184024A1
EP0184024A1 EP85114276A EP85114276A EP0184024A1 EP 0184024 A1 EP0184024 A1 EP 0184024A1 EP 85114276 A EP85114276 A EP 85114276A EP 85114276 A EP85114276 A EP 85114276A EP 0184024 A1 EP0184024 A1 EP 0184024A1
Authority
EP
European Patent Office
Prior art keywords
inner body
outer jacket
section
cross
openings
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
EP85114276A
Other languages
German (de)
English (en)
Other versions
EP0184024B1 (fr
Inventor
Hans Ludwig
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.)
HEINRICH BRINKMANN ANLAGENVERPACHTUNG GmbH and Co KG
Original Assignee
HEINRICH BRINKMANN ANLAGENVERPACHTUNG GmbH and Co KG
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 HEINRICH BRINKMANN ANLAGENVERPACHTUNG GmbH and Co KG filed Critical HEINRICH BRINKMANN ANLAGENVERPACHTUNG GmbH and Co KG
Priority to AT85114276T priority Critical patent/ATE32257T1/de
Publication of EP0184024A1 publication Critical patent/EP0184024A1/fr
Application granted granted Critical
Publication of EP0184024B1 publication Critical patent/EP0184024B1/fr
Expired legal-status Critical Current

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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
    • F23L17/14—Draining devices
    • 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

Definitions

  • the invention relates to a deflector hood for fireplaces, in particular for the exhaust air lines of industrial suction systems for digestors or the like. Consisting of an opening from two openings into an outer jacket with t lere, located between the openings, as an attachment to the exhaust air line and one held in the outer casing, the inner body continuously widening from the base surface against the outflow opening, the interior space of which is open towards the outflow opening in the region of the base surface is connected to the surroundings by means of a channel guided through the wall of the outer casing.
  • Deflector hoods of this type serve to prevent rainwater from entering the exhaust air duct and thus to protect it against the flow impairment caused by moisture ingress, which in conventional fireplaces takes the form, for example, of a reduction in suction or even undesirable sooting, in industrial exhaust air ducts, especially exhaust air ducts of digestors in the form of other, depending on the type of system different disturbances can occur.
  • the well-known deflector hoods fulfill the intended task to your complete satisfaction, but on the other hand they represent obstacles that cause considerable flow resistance, which can be achieved by maintaining a correspondingly increased exhaust gas temperature. a correspondingly increased fan output must be compensated.
  • the present invention has for its object to provide a deflector hood with a reduced flow resistance and the invention is that the réelleör by a corresponding to the outer jacket, expanding in such a way up to the middle level and then narrowing again to the outflow opening that the annular space enclosed between the outer jacket and the inner body has a cross section which increases continuously from the inflow cross section to the outflow cross section.
  • the invention provides a deflector hood with diffuser properties which opposes the flowing medium with a flow resistance which is substantially reduced in comparison with the known deflector hoods.
  • investigations have shown that the point of reversal in the case of the deflector hood according to the invention, at which the positive static pressure changes into a negative static pressure, is still inside the hood, so that with the aid of the deflector hood according to the invention, compared to the known hoods, it is essential more compact construction a "pressure recovery" improving the draft in the exhaust air duct is achieved.
  • the use of much less powerful fans is, for example, in the case of exhaust air pipes carrying cold gases.
  • chimneys carrying hot gases for example chimneys for boiler systems, the system can be regulated to a considerably lower exhaust gas temperature.
  • Significant energy savings can thus be achieved by using the deflector hood according to the invention.
  • the The inner space of the inner body is led through the outer wall of the outer jacket (liquid) drainage from the side surface of the inner body and has the shape of a support.
  • the base surface of the inner body pointing in the direction of the inflowing gases can be given a rounded, tapered and therefore aerodynamically favorable shape, whereby the (water) drainage channel can also be given a streamlined profile. In this way - as measurements have shown - reduced drag coefficients in the detector or hood can be achieved down to a value of 0.64 and below.
  • the deflector hood shown in the drawing for the exhaust air duct of a suction system for digestors consists of an outer jacket 3 widening from both openings 1, 2 to a central plane A located between the openings as an attachment to the exhaust air duct and one held in the outer jacket 3, inner body 5 which widens continuously from the base 4 in the direction of the outflow opening 1, the interior space of which is open towards the outflow opening and is connected to the surroundings in the region of the base area by means of a channel 6 which is guided through the wall of the outer casing 3.
  • the inner body has an ent speaking the outer shell 3, expanding in this way up to the middle plane A and then narrowing in the direction of the outflow opening 1 that the between the outer shell 3 and the inner body 5th enclosed annular space 7 has a cross section which increases continuously from the inflow cross section 2 to the outflow cross section 1.
  • the ring channel in plane B has a cross-section of 0.036 m ', in plane A a cross-section of 0.037 m 'and in the plane C a cross section of 0.046 m'.
  • the outflow cross section 1 with a diameter of 240 mm is 0.452 m '.
  • the drainage of collected rainwater channel 6 starts from the side surface and not centrally from the tip of the inner body - as in the known designs of a deflector hood - and is designed wing-like, so that the deflector hood as a whole has an extraordinarily aerodynamic shape and thus offers virtually no flow resistance to the inflowing gases.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)
  • Outer Garments And Coats (AREA)
EP85114276A 1984-11-22 1985-11-08 Chapeau avec déflecteur Expired EP0184024B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85114276T ATE32257T1 (de) 1984-11-22 1985-11-08 Deflektorhaube.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843442588 DE3442588A1 (de) 1984-11-22 1984-11-22 Deflektorhaube
DE3442588 1984-11-22

Publications (2)

Publication Number Publication Date
EP0184024A1 true EP0184024A1 (fr) 1986-06-11
EP0184024B1 EP0184024B1 (fr) 1988-01-27

Family

ID=6250878

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85114276A Expired EP0184024B1 (fr) 1984-11-22 1985-11-08 Chapeau avec déflecteur

Country Status (5)

Country Link
US (1) US4655121A (fr)
EP (1) EP0184024B1 (fr)
JP (2) JPS61252427A (fr)
AT (1) ATE32257T1 (fr)
DE (1) DE3442588A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1005472C2 (nl) * 1997-03-07 1998-09-18 Muelink & Grol Bv Uitstroommondstuk voor rookgasafvoer van een verbrandingshaard.

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4127247C2 (de) * 1991-08-17 1995-02-23 Beck Klaus Lizenzverwaltung Regenabweisdiffusor-Haube
US7320636B2 (en) * 2004-01-20 2008-01-22 Greenheck Fan Corporation Exhaust fan assembly having flexible coupling
US20050159101A1 (en) * 2004-01-20 2005-07-21 Hrdina Terry L. Pivotal direct drive motor for exhaust assembly
US7682231B2 (en) * 2004-01-20 2010-03-23 Greenheck Fan Corporation Exhaust fan assembly
EP1714080A4 (fr) * 2004-01-20 2009-06-24 Greenheck Fan Corp Ensemble de ventilateur aspirant
US7547249B2 (en) * 2004-07-15 2009-06-16 Greenheck Fan Corporation Exhaust fan assembly having H-out nozzle
US20070125361A1 (en) * 2005-12-02 2007-06-07 Black Bailey J Jr Vent cap assembly
US7458888B2 (en) * 2007-02-27 2008-12-02 Huta Robert M Chimney termination cap
US20100285730A1 (en) * 2009-05-11 2010-11-11 Minel Kupferberg High velocity nozzle and windband assembly
US11274825B2 (en) * 2016-07-13 2022-03-15 Uchicago Argonne, Llc Passive and no-loss weather cap for protection of wind induced downdraft in sensitive exhaust systems

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE812690C (de) * 1949-03-22 1951-09-03 Walther & Cie Ag Schornsteinaufsatz
FR1008110A (fr) * 1950-01-09 1952-05-14 Chapeau de cheminée
DE1009383B (de) * 1952-07-04 1957-05-29 Barmer Eisen Und Blechwarenfab Oberseitig offener feststehender Entlueftungsaufsatz
DE2607712A1 (de) * 1976-02-25 1977-09-08 Hans Schwarz Ohg Abluftmischhaube

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US45403A (en) * 1864-12-13 Improved chimney-top
US1097487A (en) * 1913-10-21 1914-05-19 Benjamin H Van Auken Ventilating-cowl.
US1986176A (en) * 1933-03-18 1935-01-01 Zwerling Harry Ventilator
DE1842397U (de) * 1961-09-18 1961-11-30 Erhard Muhr Dachhaube fuer abgase.
DE1863687U (de) * 1962-10-13 1962-12-13 Mestrup & Co Weitwurf-fortlufthaube.
NL7902095A (nl) * 1979-03-16 1980-09-18 Willem Jacobus Kleijn Schoorsteenkap.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE812690C (de) * 1949-03-22 1951-09-03 Walther & Cie Ag Schornsteinaufsatz
FR1008110A (fr) * 1950-01-09 1952-05-14 Chapeau de cheminée
DE1009383B (de) * 1952-07-04 1957-05-29 Barmer Eisen Und Blechwarenfab Oberseitig offener feststehender Entlueftungsaufsatz
DE2607712A1 (de) * 1976-02-25 1977-09-08 Hans Schwarz Ohg Abluftmischhaube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1005472C2 (nl) * 1997-03-07 1998-09-18 Muelink & Grol Bv Uitstroommondstuk voor rookgasafvoer van een verbrandingshaard.

Also Published As

Publication number Publication date
EP0184024B1 (fr) 1988-01-27
US4655121A (en) 1987-04-07
DE3442588A1 (de) 1986-05-22
ATE32257T1 (de) 1988-02-15
JPS61252427A (ja) 1986-11-10
DE3442588C2 (fr) 1992-05-21
JPH0379034U (fr) 1991-08-12

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