EP1091171B1 - Verfahren zum Schaffen eines homogenen Luftstromes in einem Gebläsebrenner und Gerät für seine Verwirklichung - Google Patents

Verfahren zum Schaffen eines homogenen Luftstromes in einem Gebläsebrenner und Gerät für seine Verwirklichung Download PDF

Info

Publication number: EP1091171B1
Authority: EP; European Patent Office
Prior art keywords: stage; tranquilizer; tubular; screen; burner
Prior art date: 1999-10-08
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

EP00120625A

Other languages

German (de)

English (en)

French (fr)

Other versions

EP1091171A1 (de

Inventor

Iouri Prof. Dr. Bytchkov

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.)

Bosch Thermotechnik GmbH

Original Assignee

Buderus Heiztechnik GmbH

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.)

1999-10-08

Filing date

2000-09-21

Publication date

2004-02-25

2000-09-21 Application filed by Buderus Heiztechnik GmbH filed Critical Buderus Heiztechnik GmbH

2001-04-11 Publication of EP1091171A1 publication Critical patent/EP1091171A1/de

2004-02-25 Application granted granted Critical

2004-02-25 Publication of EP1091171B1 publication Critical patent/EP1091171B1/de

2020-09-21 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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Classifications

- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
- F23D11/001—Spraying nozzle combined with forced draft fan in one unit
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/34—Burners specially adapted for use with means for pressurising the gaseous fuel or the combustion air
- F23D14/36—Burners specially adapted for use with means for pressurising the gaseous fuel or the combustion air in which the compressor and burner form a single unit

Definitions

the invention relates to a method according to the preamble of claim 1 and Device for performing such a process on a forced draft burner.
the invention belongs to the field of thermal energy and can be used for the combustion of Gas and oil can be used in forced draft burners in household and industrial equipment.
US 5 184 949 A shows an oil burner with a pistol-shaped burner housing.
the combustion air delivered by the blower becomes tangentially cylindrical Combustion air duct supplied so that this with a swirl flow the combustion zone reached.
DE 30 24 225 A is a radial fan with a pressure side Flow guidance, which consists of several longitudinally extending guide channels exists, known. It can in the cylindrical mouth of the blower for example, two perforated disks can also be arranged one behind the other.
a device for the implementation of the method described above, a device is known that a Blower with an electric motor, a radial impeller, a housing with a spiral channel and Contains redirection.
the deflection faces the side of the electric motor.
the Device also contains a burner, which consists of the following parts: cylinder housing with Side cutout for the connection of the deflection and a rear floor, distributor element with air holes.
the air holes are even around a hole in the center arranged, which is intended for the fuel lance. Thanks to the deflection that faces the side of the electric motor, the burner picks up rational space in the free space above the electric motor of the blower, which is essential Reduction in weight and dimensions of the entire device.
the aim of the present invention is to create a homogeneous air flow in the Brenner by changing its structure and creating optimal conditions for the burning process and the improvement of aerodynamic characteristics of the Blower by increasing consumption and pressure as well as efficiency.
Homogenization is achieved by reducing the degree of turbulence at least in two stages of the airflow reached.
the 1st stage on the deflection as a linear calming device, preferably in the form of a lamellar grid
the 2nd stage in the burner housing as Pipe calmer in the form of a cylinder grille with one leading to the distributor element Output cross-section
the 3rd stage in the form of a circular calmer directly in front of the distributor element be arranged.
An additional reduction in the degree of turbulence at the 2nd stage is through a pipe pressure reducer to realize with cylinder grille.
This grid is the cylinder grid of the Pipe calmers geometrically similar.
the pipe pressure reducer is outside or (preferably) mounted on the inside of the pipe calming device, so that the possibility of disabled turning in the direction of the circle.
the device for implementing the method of creating a homogeneous air flow contains a blower with an electric motor, a radial impeller, a blower housing with a spiral channel and a deflection facing the side of the electric motor. It also has a burner, which consists of the following parts: housing with side cutout for connecting the redirection and with a rear floor with opening in the center for the fuel lance and round distributor element with air holes that evenly a hole is arranged in the center. It is at the exit from the redirection the 1st stage to reduce the degree of turbulence was installed. It is in the form of a Linear calming device with a lamella grid and is preferably made of lamella elements educated.
the second stage for reducing the degree of turbulence is installed inside the burner housing. It is in the form of an axially symmetrical pipe calmer with a cylinder grille executed, and this grid preferably has longitudinal slots.
a third stage in the form of a circular calmer in front of the distributor element as a perforated grid element.
2 can optionally of the 3 levels can be combined.
the device with the main features and in particular with the entirety of the main and Additional features make it possible to implement the process for creating a homogeneous Air flow by changing its structure and solving the technical issues Task of making a uniform field of speeds of the Airflow in the combustion zone with simultaneous increase in aerodynamic characteristics of the blower such as consumption, pressure and efficiency.
the device for implementing the method of creating a homogeneous air flow contains a blower 1 with an electric motor 2, a radial impeller 3, a blower 4 with a spiral channel 5 and a deflection 6, which faces the side of the electric motor 2 and a burner 7 arranged next to it.
the latter consists of the following parts: Burner housing 8 with a rectangular side cutout 9 for connecting the deflection 6, floor 10 with opening in the center for the fuel lance 12 and round distributor element 13 with air holes 31 that are even around a hole 32 in the center for the essay 33 of the fuel lance 12 are arranged around.
the bottom 10 and the distributor element 13 can also have other holes for the accommodation the elements of the system of electric ignition, visual observation of the flame etc. (not shown on the pictures.
the linear calming device 14 is arranged at the exit from the deflection 6. It consists of a louvre grille 15, preferably made of individual slats 16, with the wide side are attached along the air flow. The resistance to the coming To reduce airflow, the downstream edge 17 of the fins 16 tapers. Further is the upstream edge 18 profiled according to the radius, with the center that the longitudinal axis 19 of the burner. The slats 16 can be placed that there is a possibility to change the distance between them.
the linear reifier 14 is installed symmetrically to the horizontal axis 20 of the burner. At the exit from the A linear slide valve 14 is provided with a gate valve 20. This is condensed into one Game between the deflection and the side cutout 9 in the burner housing 8 installed and can be moved up / down in guide grooves 21.
the Rohrquuhiger 22 can be made with a closed end section 25, the between the cylinder grid 23 and the distributor element 13.
the pipe calming device 22 can be fixed to the bottom 10 of the burner housing 8, but it can also be attached to the distributor element 13 and with it a removable one Form assembly. It is also possible to constructively design the pipe calming device 22 to be made with the distributor element 13.
the distributor element at least one additional circular calmer 26 with a grid 27, which preferably has round holes 28 with a small diameter.
the process for creating a homogeneous air flow in the forced air burner is in that the air flow through the impeller 3 of the blower 1 into the spiral duct 5 of the blower housing 4 pressed and from it in the deflection 6 from the lamella 15 of the Linear calming device 14 is sent where the 1st stage to reduce the degree of turbulence 3 times ⁇ 15 times (preferably ten times). It also becomes another important one Correlation between the sum areas of the air holes 31 of the distributor element 13 and the passage cross sections of the lamellar grid 15 are met. It lies in the interval 1.0 ⁇ 8.0 and is preferably 4.0.
the air flow is reduced with several degrees of turbulence sent into the burner housing 8, where it through the slots 24 of the cylinder grid 23 of Rohrberuhigers 22 is let through. This will make the 2nd stage of reduction of the turbulence rod (also 3 times ⁇ 15 times, preferably ten times).
the cylindrical burner housing has 90.0 mm inner diameter and 99.0 mm length.
the distributor element In the initial section of the housing there is the distributor element with 8 holes with a diameter of 9.0 mm, which are arranged evenly around the hole in the center for the fuel lance with the attachment (diameter 18.0 mm). It follows that the total area of the passage cross sections of the holes in the distributor is approximately 760 mm 2 .
the maximum degree of turbulence at the entrance to the 2nd stage will be 34.0 mm.
the device for implementing the method of creating a homogeneous air flow acts as follows:
the air flow is with the impeller 3 radial type that rotates from the electric motor 2 into the spiral channel 5 of the housing 4 of the blower 1 pressed.
a calming circuit follows 26 in the form of a grid 27 provided with small holes 28.
the air flow is characterized with a high degree of homogeneity.
the Homogeneity also remains behind the air holes 31 in the combustion zone of the propellant gas.

Landscapes

Engineering & Computer Science (AREA)
Chemical & Material Sciences (AREA)
Combustion & Propulsion (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Regulation And Control Of Combustion (AREA)
Pre-Mixing And Non-Premixing Gas Burner (AREA)
Structures Of Non-Positive Displacement Pumps (AREA)
Feeding And Controlling Fuel (AREA)
Air Supply (AREA)

EP00120625A 1999-10-08 2000-09-21 Verfahren zum Schaffen eines homogenen Luftstromes in einem Gebläsebrenner und Gerät für seine Verwirklichung Expired - Lifetime EP1091171B1 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE19948876A DE19948876C2 (de)	1999-10-08	1999-10-08	Verfahren zum Schaffen eines homogenen Luftstroms in einem Gebläsebrenner und Gerät für seine Verwirklichung
DE19948876		1999-10-08

Publications (2)

Publication Number	Publication Date
EP1091171A1 EP1091171A1 (de)	2001-04-11
EP1091171B1 true EP1091171B1 (de)	2004-02-25

Family

ID=7925194

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP00120625A Expired - Lifetime EP1091171B1 (de)	1999-10-08	2000-09-21	Verfahren zum Schaffen eines homogenen Luftstromes in einem Gebläsebrenner und Gerät für seine Verwirklichung

Country Status (7)

Country	Link
EP (1)	EP1091171B1 (cs)
AT (1)	ATE260441T1 (cs)
CZ (1)	CZ296290B6 (cs)
DE (2)	DE19948876C2 (cs)
ES (1)	ES2214202T3 (cs)
PL (1)	PL192918B1 (cs)
TR (1)	TR200002928A2 (cs)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE10327391B3 (de) *	2003-06-18	2004-12-16	Bbt Thermotechnik Gmbh	Mischeinrichtung für einen Öl- oder Gasbrenner
CN111780109B (zh) *	2020-07-16	2022-04-12	东北大学	一种超低排放的旋流富氧无焰燃烧器及使用方法
CN113483351B (zh) *	2021-05-25	2024-11-26	上海工业锅炉研究所有限公司	一种适用于生物柴油的工业锅炉配风器

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
BE790918A (fr) *	1971-11-18	1973-03-01	Palm Bjorn Olov Magnus	Procede et dispositif pour reduire la pression dynamique de l'air de combustion a la tete du bruleur d'un appareil consommant de l'huile combustible
JPS5296420A (en) *	1976-02-10	1977-08-13	Mitsubishi Heavy Ind Ltd	Burner
DE7823246U1 (de) *	1978-08-03	1978-11-09	Maschinenfabrik Augsburg-Nuernberg Ag, 8900 Augsburg	Brenner fuer fluessigen oder gasfoermigen brennstoff
DE3024225A1 (de) *	1980-06-27	1982-01-21	Werner Dr. 8972 Sonthofen Röhrs	Stroemungsfuehrung
AT395762B (de) *	1988-07-14	1993-03-25	Vaillant Gmbh	Mit einem brenngas-luft-gemisch gespeister gasbrenner
US5184949A (en) *	1990-09-07	1993-02-09	R. W. Beckett Corporation	Oil burner and method
DE19503781A1 (de) *	1995-02-04	1996-08-08	Buderus Heiztechnik Gmbh	Öl- oder Gasgebläsebrenner

1999
- 1999-10-08 DE DE19948876A patent/DE19948876C2/de not_active Expired - Fee Related
2000
- 2000-09-21 DE DE50005397T patent/DE50005397D1/de not_active Expired - Lifetime
- 2000-09-21 EP EP00120625A patent/EP1091171B1/de not_active Expired - Lifetime
- 2000-09-21 ES ES00120625T patent/ES2214202T3/es not_active Expired - Lifetime
- 2000-09-21 AT AT00120625T patent/ATE260441T1/de active
- 2000-10-03 CZ CZ20003646A patent/CZ296290B6/cs not_active IP Right Cessation
- 2000-10-06 PL PL343017A patent/PL192918B1/pl not_active IP Right Cessation
- 2000-10-09 TR TR2000/02928A patent/TR200002928A2/xx unknown

Also Published As

Publication number	Publication date
TR200002928A2 (tr)	2001-10-22
EP1091171A1 (de)	2001-04-11
DE19948876C2 (de)	2003-06-26
ATE260441T1 (de)	2004-03-15
PL192918B1 (pl)	2006-12-29
CZ20003646A3 (cs)	2002-07-17
DE50005397D1 (de)	2004-04-01
PL343017A1 (en)	2001-04-09
ES2214202T3 (es)	2004-09-16
DE19948876A1 (de)	2001-04-19
CZ296290B6 (cs)	2006-02-15

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