CN202546768U - Novel temperature adjustable nozzle - Google Patents
Novel temperature adjustable nozzle Download PDFInfo
- Publication number
- CN202546768U CN202546768U CN2012201907169U CN201220190716U CN202546768U CN 202546768 U CN202546768 U CN 202546768U CN 2012201907169 U CN2012201907169 U CN 2012201907169U CN 201220190716 U CN201220190716 U CN 201220190716U CN 202546768 U CN202546768 U CN 202546768U
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- fuel
- pipe
- fuel pipe
- combustion
- new type
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Abstract
The utility model relates to a novel temperature adjustable nozzle which comprises a nozzle body, a gas channel formed on the nozzle body, a mixing cavity mixed with the gas channel, a flame channel and a fire jet hearth, wherein a primary fuel pipe in which conveying fuel and high-temperature gas conveyed by the gas channel are subjected to primary mixed combustion is arranged in the mixing cavity; a secondary fuel pipe in which secondary conveying fuel and the gas subjected to primary mixed combustion in the mixing cavity are subjected to mixed combustion again and a secondary combustion spout are arranged on the fire jet hearth; a combustion air pipe and an ignition fuel pipe are arranged on the primary fuel pipe; combustion air conveyed by the combustion air pipe and ignition fuel conveyed by the ignition fuel pipe are mixed at a burning torch and are ignited by an ignition needle arranged on the primary fuel pipe; the outer ends of the primary fuel pipe, the secondary fuel pipe and the ignition fuel pipe are connected to a fuel conveying header pipe; and regulating valves are arranged on the fuel conveying pipelines. The novel temperature adjustable nozzle is high in temperature control precision, high in furnace temperature uniformity and high in safety.
Description
Technical field
The utility model relates to burner, refers in particular to a kind of new type of adjustable temperature burner that is suitable for continuous heat-storage type burner.
Background technology
Regenerative combustion technology is present one of best energy-saving combustion technology of energy-saving effect in the world, and heat-storage type burner is made up of heat storage, when flue gas through the time heat passed to heat storage, its temperature is improved, carry out accumulation of heat; Cut off flue gas subsequently and pass to preheating gas, heat storage is passed to preheating gas with heat again, and its temperature is reduced, and carries out heat release, and then the cut-out preheating gas passes to flue gas.Carry out so repeatedly flue gas heat is passed to preheating gas through the intermediate medium heat storage.In order to make preheating gas be able to continuous heating, every stove or each burner must be joined two regenerator.Accumulation of heat and heat release process belong to the labile state heat-transfer behavior, and intermittently switching-over, so the heat accumulating type preheater will use in pairs.The shape of heat storage, the size and the form of building by laying bricks or stones are very big to the diabatic process influence, and the reversal interval time fluctuateed to preheat temperature when regenerator was identical has very big influence, and commutating period is short, and then the preheat temperature fluctuation is little.Shortcomings such as commutation type heat accumulating type preheater exists volume big mostly, and heat recovery rate is low, and the fluctuation of gas preheat temperature is bigger.Because of high temperature air is continuously to supply, there is very big shortcoming in therefore conventional heat-accumulating burner, has that temperature control is inaccurate, temperature-controlled precision is low, the defective of temperature uniformity difference.
Summary of the invention
The purpose of the utility model is to improve and innovate to the defective that exists in the background technology and problem, and a kind of safe, energy-conservation new type of adjustable temperature burner is provided.
The technical scheme of the utility model is a kind of burner body that comprises of structure, is arranged on gas passage and the burner of the hybrid chamber, passage of flame and the bocca burner hearth that communicate with it on the burner body, wherein:
Be provided with the main fuel pipe of the high-temperature gas mixed once burning of transfer the fuel and gas passage conveying in the hybrid chamber; The bocca burner hearth is provided with transfer the fuel once more, with gas after hybrid chamber mixed once burning the secondary fuel pipe and the second-time burning spout of mixed combustion once more;
Described main fuel pipe is provided with combustion-aid air pipe and igniter fuel pipe, and the combustion air that combustion-aid air pipe is carried mixes at burning torch with the igniter fuel that the igniter fuel pipe is carried, and fiery through the igniting pin mark that is arranged on the main fuel pipe;
Described main fuel pipe, secondary fuel pipe and igniter fuel pipe outer end all are connected on the fuel delivery main, and are provided with control valve on each fuel tube.
Advantage of the utility model and beneficial effect:
The utility model mainly is suitable for continuous heat-storage type burner, also makes burner usefulness applicable to the commutation type heat-accumulation combustor, and fuel divides two steppings to go into; Adopt two combustion pipes to add the different parts after-combustion in the burner; Can effectively control flame temperature, temperature-controlled precision is high, and temperature uniformity is good; Simultaneously can effectively regulate burn rate, primary fuel and secondary fuel can both be regulated, and make flame be in controllable state constantly, therefore can effectively reduce the discharging of NOx, can the discharge capacity of NOx be controlled at 50-100ppm, are lower than national grade one discharge standard.Adopt the secondary flame detector system simultaneously, can effectively improve the security of whole system.
Description of drawings
Fig. 1 is the utility model cross-sectional view.
Fig. 2 is Figure 1A-A cross-sectional view.
The specific embodiment
Can know that by Fig. 1,2 the utility model comprises burner body 8, be arranged on gas passage 1 on the burner body 8 and hybrid chamber 18, passage of flame 19 and the bocca burner hearth that communicates with it), wherein:
Be provided with the main fuel pipe 3 of the high-temperature gas mixed once burning of transfer the fuel and gas passage 1 conveying in the hybrid chamber 18; Bocca burner hearth 7 is provided with transfer the fuel once more, with gas after hybrid chamber 18 mixed once burnings the secondary fuel pipe 11 and the second-time burning spout 6 of mixed combustion once more;
Described main fuel pipe 3 is provided with combustion-aid air pipe 5 and igniter fuel pipe 4, and the combustion air that combustion-aid air pipe 5 is carried mixes at burning torch with the igniter fuel that igniter fuel pipe 4 is carried, and lights a fire through the igniting pin 12 that is arranged on the main fuel pipe 3;
Described main fuel pipe 3, secondary fuel pipe 11 and igniter fuel pipe 4 outer ends all are connected on the fuel delivery main 21, and are provided with control valve on each fuel tube.
The described main fuel pipe 3 of the utility model is provided with the switch and the size of main fuel magnetic valve 13 and the conveying of main fuel control valve 14 fuel meterings.Described secondary fuel pipe 11 is provided with the switch and the size of secondary fuel magnetic valve 9 and the conveying of secondary fuel control valve 10 fuel meterings.Described igniter fuel pipe 4 is provided with the switch and the size of igniter solenoid valve 16 and the conveying of igniting control valve 17 fuel meterings.Described fuel delivery main 21 is provided with total stop valve 20.Described bocca burner hearth 7 is a bell mouth shape, and secondary fuel spout 6 is provided with at least two in bocca burner hearth 7 loudspeaker opening parts.Described hybrid chamber 18 fuses through passage of flame 19 and bocca burner hearth 7 for falling bell mouth shape.Described igniting pin 12 adjacents are provided with the fire testing needle 15 of flame detection.The ultraviolet flame that the rear end of described burner body 8 is provided with secondary detection flame detects hole 2.
Structure of the utility model and operation principle:
The utility model comprises burner body 8, gas passage 1, main fuel pipe 3, igniter fuel pipe 4, secondary fuel pipe 11, bocca burner hearth 7, hybrid chamber 18, passage of flame 19, secondary fuel spout 6; Combustion-aid air pipe 5 as the combustion air admission passage; Regulate the main fuel magnetic valve 13 and main fuel control valve 14 of main fuel pipe; Regulate the secondary fuel magnetic valve 9 and secondary fuel control valve 10 of secondary fuel pipe; The igniting pipeline that is used for ignition system comprises igniter solenoid valve 16, igniting control valve 17, igniting pin 12, fire testing needle 15, also is designed with the ultraviolet flame that is used for safe secondary fire inspection simultaneously in burner body 8 rear ends and detects hole 2.
The utility model is applicable to that mainly continuous high temperature air and fuel in burner and the burning of burner hearth inner edge premix limit, belong to the diffusion type combustion system, and combustion air temperature belongs to the high-temperature air burning category generally greater than 800 ℃.Therefore whole burner body all adopts high temperature resistant low cement deposit material to form by the cast of example structure diagram shape; It is horn-like that bocca becomes; Middle cylinder design is a passage of flame 19, mainly is to be beneficial to concentrate flame and accelerate flame propagation velocity, and inner inverted tubaeform shape is a hybrid chamber 18; Combustion-supporting high temperature air thermal-flame after gas passage and main fuel mix in hybrid chamber is further accelerated through the passage of flame burning velocity, sprays through bocca; The secondary fuel orifice design can design two or more secondary fuel spouts 6 at bocca burner hearth 7 loudspeaker opening parts, secondary fuel bocca and burner hearth with mixes, burn once more through the gas after the primary combustion.Fuel process main fuel magnetic valve 13 carries out switch and size adjustment control with main fuel control valve 14, mixes, burns with gas passage 1 interior high temperature air from the fuel elder generation of main fuel pipe 3 ejections; Then, carry out switch and size adjustment control through secondary fuel magnetic valve 9 and secondary fuel control valve 10, through fuel that secondary fuel pipe 11 sprays from secondary fuel spout 6 again with gas passage 1 in air mix, burn at bocca burner hearth 7 positions; The second-time burning structure can effectively reduce the temperature at the hybrid chamber position of the mixed burning of the temperature of high-temperature flue gas, the particularly fuel of main fuel pipe 3 and high temperature air, helps adjustment, can reach higher temperature accuracy.
After the igniting pipeline that the utility model is used to light a fire comprises that igniter fuel carries out switch and flow-control through igniter solenoid valve 16 and igniting control valve 17; Through igniter fuel pipe 4 and through Flow-rate adjustment after the combustion air that combustion-aid air pipe 5 gets into mixes in burning torch, light flame through igniting pin 12; Fire testing needle 15 mainly is to be used for safety detection flame, can the total stop valve 20 of emergency cut-off fuel when fire testing needle 15 detects less than flame, and light a fire again, action such as opens solenoid valve.The ultraviolet flame that burner body 8 rear ends also are designed with secondary fire inspection detects hole 2, mainly plays safety and second protection effect, in case fire testing needle 15 shields the total stop valve 20 of ability emergency cut-off fuel when detecting less than flame when malfunctioning.
The described embodiment of the utility model only is the description that the preferred implementation of the utility model is carried out; Be not that the utility model design and scope are limited; Under the prerequisite that does not break away from the utility model design philosophy, engineers and technicians make the technical scheme of the utility model in this area various modification and improvement all should fall into the protection domain of the utility model; The technology contents that the utility model is asked for protection all is documented in claims.
Claims (9)
1. a new type of adjustable temperature burner is characterized in that comprising burner body (8), the hybrid chamber (18), passage of flame (19) and the bocca burner hearth (7) that are arranged on the gas passage (1) on the burner body (8) and communicate with it, wherein:
Be provided with the main fuel pipe (3) of the high-temperature gas mixed once burning of transfer the fuel and gas passage (1) conveying in the hybrid chamber (18); Bocca burner hearth (7) is provided with transfer the fuel once more, with gas after hybrid chamber (18) mixed once burning the secondary fuel pipe (11) and the second-time burning spout (6) of mixed combustion once more;
Described main fuel pipe (3) is provided with combustion-aid air pipe (5) and igniter fuel pipe (4); And the combustion air that combustion-aid air pipe (5) is carried mixes at burning torch with the igniter fuel that igniter fuel pipe (4) is carried, and through being arranged on igniting pin (12) igniting on the main fuel pipe (3);
Described main fuel pipe (3), secondary fuel pipe (11) and igniter fuel pipe (4) outer end all are connected on the fuel delivery main (21), and are provided with control valve on each fuel tube.
2. new type of adjustable temperature burner according to claim 1 is characterized in that described main fuel pipe (3) is provided with the switch and the size of main fuel magnetic valve (13) and the conveying of main fuel control valve (14) fuel metering.
3. new type of adjustable temperature burner according to claim 1 is characterized in that described secondary fuel pipe (11) is provided with the switch and the size of secondary fuel magnetic valve (9) and the conveying of secondary fuel control valve (10) fuel metering.
4. new type of adjustable temperature burner according to claim 1 is characterized in that described igniter fuel pipe (4) is provided with the switch and the size of igniter solenoid valve (16) and the conveying of igniting control valve (17) fuel metering.
5. new type of adjustable temperature burner according to claim 1 is characterized in that described fuel delivery main (21) is provided with total stop valve (20).
6. new type of adjustable temperature burner according to claim 1 is characterized in that described bocca burner hearth (7) is a bell mouth shape, and secondary fuel spout (6) is provided with at least two in bocca burner hearth (7) loudspeaker opening part.
7. new type of adjustable temperature burner according to claim 1 is characterized in that described hybrid chamber (18) for falling bell mouth shape, fuses through passage of flame (19) and bocca burner hearth (7).
8. new type of adjustable temperature burner according to claim 1 is characterized in that described igniting pin (12) adjacent is provided with the fire testing needle (15) of flame detection.
9. new type of adjustable temperature burner according to claim 1 is characterized in that the rear end of described burner body (8) is provided with the ultraviolet flame detection hole (2) of secondary detection flame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201907169U CN202546768U (en) | 2012-05-02 | 2012-05-02 | Novel temperature adjustable nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201907169U CN202546768U (en) | 2012-05-02 | 2012-05-02 | Novel temperature adjustable nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202546768U true CN202546768U (en) | 2012-11-21 |
Family
ID=47167392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201907169U Expired - Fee Related CN202546768U (en) | 2012-05-02 | 2012-05-02 | Novel temperature adjustable nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202546768U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081426A (en) * | 2019-05-13 | 2019-08-02 | 佛山市湛蓝环保设备有限公司 | Low nitrogen kiln burner |
-
2012
- 2012-05-02 CN CN2012201907169U patent/CN202546768U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081426A (en) * | 2019-05-13 | 2019-08-02 | 佛山市湛蓝环保设备有限公司 | Low nitrogen kiln burner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20200502 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |