CN202581335U

CN202581335U - Automatic switching heat accumulating type gas burner

Info

Publication number: CN202581335U
Application number: CN2012200629185U
Authority: CN
Inventors: 王建中
Original assignee: FOSHAN KEHAO COMBUSTION EQUIPMENT MANUFACTURING Co Ltd
Current assignee: FOSHAN KEHAO COMBUSTION EQUIPMENT MANUFACTURING Co Ltd
Priority date: 2012-02-25
Filing date: 2012-02-25
Publication date: 2012-12-05
Anticipated expiration: 2022-02-25

Abstract

The utility model provides an automatic switching heat accumulating type gas burner. Two monomer gas burners with the same structure are arranged on two sides of a furnace body; when one burner is combusted, the other burner accumulates heat; automatic reversing of the burners can be realized by an external switching valve; a low-temperature work mode and a high-temperature work mode can be switched; and a technology of performing high-speed combustion at low temperature, oxygen-insufficient combustion at high temperature and flue gas reflux is adopted. By adopting the technology of performing high-speed combustion at low temperature, oxygen-insufficient combustion at high temperature and flue gas reflux, complete heat exchange is realized, the air inlet temperature of the combustion-supporting air is greatly increased, the flue gas outlet temperature is reduced, and the self-heat-accumulating function with full combustion, low emission of NOx, automatic switching of low-temperature and high-temperature work modes, high efficiency and energy conservation is realized.

Description

A kind of automatic switchover regenerative gas burner

Technical field

The utility model relates to a kind of heat-accumulating burner, particularly a kind of compact conformation, burning fully, self regenerative gas burner of low NOx drainage.

Background technology

When the key problem in technology of high wind-warm syndrome low oxygen combustion is through alternation some the high-efficiency thermal storage chamber to be preheated to 800 ~ 1100 ° of C high temperature with combustion air from room temperature; Go into means such as the flow velocity of stove, the angle of cut, hybrid mode through effectively organizing fuel and combustion air; Make fuel be controlled at 2 ~ 15% furnace inner space and carry out the volume burning in oxygen content; Thereby can reduce the NOx discharge capacity significantly; But high-efficiency thermal storage chamber effectively catching fume afterheat makes that exhaust gas temperature is controlled at that dew point is above, in the scope below 150 ° of C, and this advanced person's combustion system can reach environmental protection and energy saving, effect that heating quality is high simultaneously.Accumulation of heat and the burner that burns and in a burner, to realize simultaneously on the market; Power generally at 200KW between the 2000KW, its power is low, compact conformation; In some small-sized heating furnaces, obtained good utilization; And for large-scale heating furnace or melting furnace, its power does not reach specified requirement, if use a plurality of burners to satisfy the difficulty that designs and produces that power requirement can cause increasing body of heater again.

Summary of the invention

In order to overcome the deficiency of prior art, the utility model provide a kind of compact conformation, burning fully, self regenerative gas burner of low NOx drainage.

The utility model solves the technical scheme that its technical problem adopted:

A kind of automatic switchover regenerative gas burner; Comprise two monomeric gas burners that structure is identical; It is characterized in that: said first fuel burner nozzle and second fuel burner nozzle are installed in the both sides of body of heater respectively, and said first fuel burner nozzle comprises the first non-heating air inlet chamber and the first heating air inlet chamber, and the said first non-heating air inlet chamber links to each other with body of heater through first combustion chamber; The first heating air inlet chamber communicates with first heat storage, and first heat storage is communicated with body of heater through first air and exhaust gases passes; Benefit is to make the nozzle structure compact, and gas is with easy access, and heat exchange is abundant, the intake air temperature that has improved combustion air greatly with reduced the flue gas discharge temperature, make sufficient combustion, heat utilization ratio is high;

As the improvement of such scheme, the described first non-heating air inlet chamber includes the cold conditions fuel gas inlet, cold conditions air intlet and hot fuel gas inlet; The said first heating air inlet chamber is provided with hot inlet of cold air;

As the further improvement of such scheme, described first air and exhaust gases passes are made up of burner block or carborundum combustion chamber;

Further, the said first heat storage housing is the burner steel construction, and insulation material covers outside the burner steel construction, and benefit is to strengthen heat insulation effect, reduces energy loss.

Further, described burner is circumscribed with transfer valve.

The beneficial effect of the utility model is: the utility model is through being provided with two monomeric gas burners that structure is identical in the body of heater both sides; When a burning; The another burner carries out accumulation of heat, and realizes the automatic reverse of burner through outside transfer valve, and passes through the switching of low-temperature working pattern and hot operation pattern; Through high-velocity combustion under the low temperature, oxygen debt burning and smoke backflow technology under the high temperature; Through adopting high-velocity combustion at low temperatures; Oxygen debt burning and smoke backflow technology under the high temperature; Heat exchange is abundant; The intake air temperature that has improved combustion air greatly with reduced the flue gas discharge temperature, realized burning fully, low NOx drainage, the low hot operation pattern that automaticallyes switch, energy-efficient self heat accumulation function.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further specified.

Fig. 1 is the structural representation of the utility model.

The specific embodiment

With reference to Fig. 1; A kind of automatic switchover regenerative gas burner; Comprise two monomeric gas burners that structure is identical; Said first fuel burner nozzle 1 and second fuel burner nozzle 2 are installed in the both sides of body of heater 10 respectively, and said first fuel burner nozzle 1 comprises the first non-heating air inlet chamber 11 and the first heating air inlet chamber 12, and the said first non-heating air inlet chamber 11 links to each other with body of heater 10 through first combustion chamber 13; The first heating air inlet chamber 12 communicates with first heat storage 15, and first heat storage 15 is communicated with body of heater 10 through first air and exhaust gases passes 14.The nozzle structure compact, gas is with easy access, heat exchange is abundant, the intake air temperature that has improved combustion air greatly with reduced the flue gas discharge temperature, make sufficient combustion, heat utilization ratio is high; The described first non-heating air inlet chamber 11 includes cold conditions fuel gas inlet 111, cold conditions air intlet 112 and hot fuel gas inlet 113; The said first heating air inlet chamber 12 is provided with hot inlet of cold air 121; Described first air and exhaust gases passes 14 are made up of burner block or carborundum combustion chamber.

Said first heat storage, 15 housings are the burner steel construction, and insulation material covers outside the burner steel construction, and insulation material covers outside the burner steel construction, and benefit is to strengthen heat insulation effect, reduces energy loss.

Described burner is circumscribed with transfer valve, the burning and the heat accumulation function of the burner that is used to automatically switch.

The combustion gas kind can be a natural gas, liquefied gas, town gas, coke-stove gas, high burnt gaseous mixture, producer gas etc.

The operation principle of the utility model is: this burner uses in pairs, and when a burning, the another burner carries out accumulation of heat, and realizes the automatic reverse of burner through outside transfer valve.

This burner adopts low-temperature working pattern and hot operation pattern, automaticallyes switch at furnace temperature 750 degree.When furnace temperature is lower than 750 degree, open the low-temperature working pattern, this moment, two burners did not commutate.Every burner all is operated in the low-temperature working pattern; 1 combustion gas of first fuel burner nozzle is got in first combustion chamber 13 by the first cold conditions fuel gas inlet 111 and the first cold conditions air intlet 112 burns; The high-temperature flue gas of burning is by first combustion chamber 13 ejection at a high speed; Muzzle velocity can reach 80 ~ 120 meter per seconds, and flue gas after the heat exchange, is discharged fume by the auxiliary flue of body of heater 10 in stove.Equally, second fuel burner nozzle 2 also is such work, and combustion gas is got in second combustion chamber 23 by the second cold conditions fuel gas inlet 211 and the second cold conditions air intlet 212 burns, and the high-temperature flue gas of burning is by second combustion chamber 23 ejection at a high speed.

After furnace temperature is higher than 750 degree; First fuel burner nozzle 1 is transformed into work under the high temperature mode automatically, and combustion gas this moment gets into from the first hot fuel gas inlet 113, and air is got into by hot inlet of cold air 121; Cold air gets into first air and exhaust gases passes 14 via first heat storage 15; In first air and exhaust gases passes 14,, get in the stove and combustion gas mixing, the oxygen debt burning of formation high temperature with after the flue gas that refluxes mixes.High-temperature flue gas is accomplished heat exchange in stove after, by second air and exhaust gases passes 24 entering of second fuel burner nozzle 2, temperature is discharged from the flue gas exhaust opening after dropping to 100 ~ 300 degree behind second heat storage 25.

Behind the burner reversing combustion; Combustion gas this moment gets into from the second hot fuel gas inlet 213; Air is got into by the second hot inlet of cold air 221, and cold air gets into second air and exhaust gases passes 24 via second heat storage 25, in second air and exhaust gases passes 24 with after the flue gas of backflow mixes; Get in the stove and combustion gas mixing, form the oxygen debt burning of high temperature.High-temperature flue gas is accomplished heat exchange in stove after, by first air and exhaust gases passes 14 entering of first fuel burner nozzle, temperature is discharged from the flue gas exhaust opening after dropping to 100 ~ 300 degree behind first heat storage 15.

Owing to adopted smoke backflow and the oxygen debt combustion technology of high temperature, this burner is a compact conformation, and burning is complete, low NOx drainage, and band is with the energy-efficient low NOx of the automatic switchover of low-temperature working pattern and hot operation pattern self heat-accumulating burner.

Certainly, the utility model is not limited to above-mentioned embodiment, as long as it reaches the technique effect of the utility model with essentially identical means, all should belong to the protection domain of the utility model.

Claims

1. automatic switchover regenerative gas burner; Comprise two monomeric gas burners that structure is identical; It is characterized in that: said first fuel burner nozzle (1) and second fuel burner nozzle (2) are installed in the both sides of body of heater (10) respectively; Said first fuel burner nozzle (1) comprises the first non-heating air inlet chamber (11) and the first heating air inlet chamber (12); The said first non-heating air inlet chamber (11) links to each other with body of heater (10) through first combustion chamber (13), and the first heating air inlet chamber (12) communicates with first heat storage (15), and first heat storage (15) is communicated with body of heater (10) through first air and exhaust gases passes (14).

2. a kind of automatic switchover regenerative gas burner according to claim 1 is characterized in that: the described first non-heating air inlet chamber (11) includes cold conditions fuel gas inlet (111), cold conditions air intlet (112) and hot fuel gas inlet (113); The said first heating air inlet chamber (12) is provided with hot inlet of cold air (121).

3. a kind of automatic switchover regenerative gas burner according to claim 1 is characterized in that: described first air and exhaust gases passes (14) are made up of burner block or carborundum combustion chamber.

4. a kind of automatic switchover regenerative gas burner according to claim 1 is characterized in that: said first heat storage (15) housing is the burner steel construction, and insulation material covers outside the burner steel construction.

5. a kind of automatic switchover regenerative gas burner according to claim 1, it is characterized in that: described burner is circumscribed with transfer valve.