CN2797888Y - Low pressure plane flame burner - Google Patents

Low pressure plane flame burner Download PDF

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Publication number
CN2797888Y
CN2797888Y CN 200520030008 CN200520030008U CN2797888Y CN 2797888 Y CN2797888 Y CN 2797888Y CN 200520030008 CN200520030008 CN 200520030008 CN 200520030008 U CN200520030008 U CN 200520030008U CN 2797888 Y CN2797888 Y CN 2797888Y
Authority
CN
China
Prior art keywords
cyclone
air
burner
burner block
gas
Prior art date
Application number
CN 200520030008
Other languages
Chinese (zh)
Inventor
钟小葵
沈志强
Original Assignee
洛阳市科本机械设备有限公司
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 洛阳市科本机械设备有限公司 filed Critical 洛阳市科本机械设备有限公司
Priority to CN 200520030008 priority Critical patent/CN2797888Y/en
Application granted granted Critical
Publication of CN2797888Y publication Critical patent/CN2797888Y/en

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Abstract

The utility model discloses a low pressure plane flame burner which is the device that a flare opening (6) of a burner block (5) is provided with an air cyclone (3). The air cyclone is in a spiral case type structure, a gas cyclone (1) is arranged on the air cyclone, and the gas cyclone is also a return pipe of the air cyclone. Outlets of the two cyclones are concentric and are connected with the flare opening of the burner block, and the flare opening (6) of the burner block (5) can satisfy a certain formula. The utility model has reasonable design and compact structure, and stable flat flames can be formed. The speed distribution of an air current on the outlet section of the air cyclone is even and the cyclone strength is high, which is favorable for forming a flat air current. Resistance is low, the stable flat flames can be formed when the air pressure of an inlet is about 1000 pa, and thus, a general blower can satisfy the requirement of air feeding. The utility model has the advantages of low noise, environment protecting and energy saving. The air cyclone has simple structure and strong adaptability, and burners with the same burning ability can adapt to various gas fuels, such as liquefied gas, natural gas, coal gas, etc.

Description

The low pressure flat flame burner

Affiliated technical field

The utility model belongs to heating furnace flat flame burner technical field, relates generally to a kind of low pressure flat flame burner.

Background technology

Flat flame burner is a kind of novel burner that begins the 1980s in China's popularization, the kind of present domestic flat flame burner is a lot, but mostly complex structure needs the high pressure positive blower air feed, has that noise is big, bad adaptability, flat flame forms unsettled defective under complex working condition.Especially the design of the curved surface of the tubaeform quirk of burner block to the stable formation of flat flame, effectively improve add thermal effect, energy savings plays crucial effects.

Technology contents

The utility model purpose promptly produces thus, proposes a kind of low pressure flat flame burner.This flat flame burner adopts the low pressure air feed, has the advantages that adaptability is strong, energy-efficient, help the stable formation of flat flame.

The utility model realize that above-mentioned purpose takes technical scheme be: at burner block horn mouth position air cyclone and combustion gas cyclone are set, the combustion gas cyclone is arranged on the air cyclone upper end, its inlet tube is stretched in people's air cyclone and the return duct of double as air cyclone, the outlet of two cyclones links to each other with the burner block horn mouth with one heart.

Described flat flame burner, its burner block horn mouth should satisfy following formula:

( X - 3 2 D ) 2 + ( Y - D ) 2 = D 2

Expressed circle 1/4 curve around Y-axis rotate the song that forms and

D in the formula: burner block import diameter of a circle.

The swirling number of described its swirl strength of air cyclone should meet following formula:

S = π 4 ( D 2 ab + D b )

S in the formula: swirling number;

D: cyclone outlet diameter;

A cyclone throat width;

B cyclone entrance height.

The utility model is reasonable in design, and is simple in structure, and adaptability is strong, of many uses.It has following major advantage:

1, the structure of each parts of burner can form stable flat flame through optimizing and combining;

2, air cyclone outlet overdraught VELOCITY DISTRIBUTION is even, and the swirl strength height helps forming open and flat air-flow, and resistance is lower, and intake air pressure just can form about 1000pa and stablize flat flame, therefore just can satisfy the air feed requirement with general blower fan, noise is low, environmental protection and energy saving.

3, air cyclone is simple in structure, and adaptability is strong, and the burner of same burning capacity can adapt to all gases fuel such as liquefied gas, natural gas and coal gas.

4, the burner block horn mouth is easily manufactured, compact conformation, and flat flame forms well

Description of drawings

Fig. 1 is the utility model structural representation

Fig. 2 is the cut-away view of Figure 1A-A

Among the figure: 1, combustion gas cyclone, 2, end cap, 3, air cyclone, 4, installing plate, 5, burner block, 6, horn mouth, 7, inlet tube.

The specific embodiment

In conjunction with the accompanying drawings, it is as follows to provide embodiment of the present utility model:

As shown in Figure 1: present embodiment is at horn mouth 6 positions of burner block 5 air cyclone 3 and combustion gas cyclone 1 to be set, and air cyclone is the scroll casing type structure, is fixed in burner block 5 horn mouths 6 positions by installing plate 4.Combustion gas cyclone 1 can adopt scroll casing type structure or tangential structure or direct-type structure, be fixed on the air cyclone 3 by end cap 2, its inlet tube 7 is stretched in people's air cyclone 3 and the return duct of double as air cyclone, and the outlet of two cyclones links to each other with the horn mouth 6 of burner block 5 with one heart.Combustion gas and air form strong swirling eddy by two cyclones respectively, enter the tubaeform quirk burning of burner block after the mixing of meeting, and going out the flat flame of interruption-forming under the wall attachment effect effect.Simultaneously be formed centrally a negative pressuren zone in the burner block horn mouth, the part high-temperature flue gas is anti-phase to be back to the effect that the burner root plays continuous igniting.Make burner can realize stable burning.

The tubaeform quirk of burner block should satisfy following formula:

( X - 3 2 D ) 2 + ( Y - D ) 2 = D 2

Expressed circle 1/4 curve rotates the curved surface that forms around Y-axis

D in the formula: burner block import diameter of a circle.

Air cyclone is weighed the swirling number of its swirl strength and is answered coincidence formula:

S = π 4 ( D 2 ab + D b )

S in the formula: swirling number;

D: cyclone outlet diameter;

A cyclone throat width;

B cyclone entrance height.

Claims (3)

1, a kind of low pressure flat flame burner, comprise burner block (5) and be arranged on the combustion gas cyclone (1) and the air cyclone (3) at this burner block (5) horn mouth (6) position, it is characterized in that: described combustion gas cyclone (1) is located at the upper end of air cyclone (3), and its inlet tube is stretched in people's air cyclone (3) and the air return duct of double as air cyclone (3); The outlet of combustion gas cyclone (1) is concentric with the outlet of air cyclone (3), links to each other with the burner block horn mouth.
2, low pressure flat flame burner according to claim 1 is characterized in that: the swirling number of air cyclone (3) should satisfy following formula:
S = π 4 ( D 2 ab + D b )
In the formula: S: swirling number;
D: cyclone outlet diameter;
A cyclone throat width;
B cyclone entrance height.
3, low pressure flat flame burner according to claim 1 is characterized in that: the curved surface of burner block (5) horn mouth (6) should satisfy following formula:
( X - 3 2 D ) 2 + ( Y - D ) 2 = D 2
Expressed circle 1/4 curve rotates formed curved surface around Y-axis,
D in the formula: burner block import diameter of a circle.
CN 200520030008 2005-02-05 2005-02-05 Low pressure plane flame burner CN2797888Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200520030008 CN2797888Y (en) 2005-02-05 2005-02-05 Low pressure plane flame burner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200520030008 CN2797888Y (en) 2005-02-05 2005-02-05 Low pressure plane flame burner

Publications (1)

Publication Number Publication Date
CN2797888Y true CN2797888Y (en) 2006-07-19

Family

ID=36869130

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200520030008 CN2797888Y (en) 2005-02-05 2005-02-05 Low pressure plane flame burner

Country Status (1)

Country Link
CN (1) CN2797888Y (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101963353A (en) * 2010-11-02 2011-02-02 北京航天动力研究所 Low-pressure low-heat value gas combustor
CN101749708B (en) * 2008-12-02 2011-07-27 同济大学 High-temperature air-gas flat-flame burner
CN103206711A (en) * 2013-03-20 2013-07-17 洛阳腾节炉业科技有限公司 Heat accumulating type double-volute flat flame burner nozzle
CN103805289A (en) * 2014-03-13 2014-05-21 杜建吉 High-efficiency ignition burner of dry pulverized coal fluidized-bed gasifier
CN103849434A (en) * 2014-03-13 2014-06-11 杜建吉 Combined type coal water slurry nozzle provided with ignition device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101749708B (en) * 2008-12-02 2011-07-27 同济大学 High-temperature air-gas flat-flame burner
CN101963353A (en) * 2010-11-02 2011-02-02 北京航天动力研究所 Low-pressure low-heat value gas combustor
CN101963353B (en) * 2010-11-02 2013-03-20 北京航天动力研究所 Low-pressure low-heat value gas combustor
CN103206711A (en) * 2013-03-20 2013-07-17 洛阳腾节炉业科技有限公司 Heat accumulating type double-volute flat flame burner nozzle
CN103206711B (en) * 2013-03-20 2015-09-16 洛阳腾节炉业科技有限公司 The two snail flat flame burner of a kind of heat accumulating type
CN103805289A (en) * 2014-03-13 2014-05-21 杜建吉 High-efficiency ignition burner of dry pulverized coal fluidized-bed gasifier
CN103849434A (en) * 2014-03-13 2014-06-11 杜建吉 Combined type coal water slurry nozzle provided with ignition device
CN103805289B (en) * 2014-03-13 2015-04-01 济南同智创新能源科技股份有限公司 High-efficiency ignition burner of dry pulverized coal fluidized-bed gasifier

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GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee