CN2641475Y - Low heat value low pressure/high pressure fuel gas combination burner - Google Patents
Low heat value low pressure/high pressure fuel gas combination burner Download PDFInfo
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- CN2641475Y CN2641475Y CN 03206888 CN03206888U CN2641475Y CN 2641475 Y CN2641475 Y CN 2641475Y CN 03206888 CN03206888 CN 03206888 CN 03206888 U CN03206888 U CN 03206888U CN 2641475 Y CN2641475 Y CN 2641475Y
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- nozzle
- pressure
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- gas
- fuel gas
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Abstract
The utility model relates to a lower calorific value low pressure and high pressure fuel gas combing burner, and consists of low pressure and high pressure fuel gas guns and air pipes, an air nozzle used in common is arranged in the front of the low pressure and high pressure fuel gas guns, an eternal fire and a spark lever are arranged in the internal cavity of the annular body of the high pressure fuel gas lance; the air pipe is arranged on the lateral wall of a thermal insulated pot body; the cavities between the low pressure and high pressure fuel gas guns, the thermal insulated pot bodies and the high pressure fuel gas gun and the spark lever of the eternal fire are air interval channel; the fuel gas and air nozzle are capable for the ring flat-sewed type nozzle or the ring porous type nozzle. The fuel gas sprayed out from the high pressure fuel gas passage and the low pressure fuel gas passage of the nozzle with the subsonic velocity or the sound velocity and the combustion air sprayed out from the air interval channel with subsonic velocity are intwisted, sheared, stretched and mixed in the mixed section outside the nozzle, forming an even nixed jet flow, and forming a blaze which is completely burnt at the same time.
Description
Technical field
The utility model relates to a kind of low heat value low pressure/high-pressure gas combined combustion device, particularly is used in the efficient gas burner of the low-quality combustion gas of low pressure, belongs to technical field of burner.
Background technology
In the gas burner technical development, mainly contain four kinds of situations; First kind is the high-quality gas burner of high pressure, (calorific value height, impurity few) and gaseous-pressure height because the combustion gas quality better, and combustion flame is continous-stable easily; Second kind is the high-quality combustion gas of low pressure, the third is the low-quality combustion gas of high pressure (calorific value is low, impurity is many); The 4th kind is the low-quality combustion gas of low pressure.
The continous-stable that is flame by its difficulty of burning tissue to above-mentioned four kinds of burners is that first kind of difficulty is less, second, third difficulty progressively increases, the 4th kind of difficulty maximum, owing to produce a lot of low pressure, low heat value, the more flammable tail gas of impurity in the production process of chemical industry, metallurgy and coking industry, generally, the direct air burning of torch of various models is set then in order not cause gas explosion and contaminated environment.In order to make full use of the heat energy of this kind combustion gas, need to use in suitable industry of exploitation and the life burner of this kind tail gas, for example be applicable to various tubular heaters, Industrial Boiler and the Industrial Stoves of oil plant, petrochemical plant, Metallurgical Factory and material industry.
Summary of the invention
The purpose of this utility model is: a kind of low heat value low pressure/high-pressure gas combined combustion device is provided, it is at utilizing low heat value, the more combustion gas of impurity, realize that combustion gas-air stratification flows, in nozzle, spray with subsonic speed or velocity of sound, in the outer realization of outlet combustion gas-cut blending with the strong stranding of the air that is no less than one deck, make it even mixing, sufficient combustion is to improve the efficient of burner.
The technical solution of the utility model is: low heat value low pressure/high-pressure gas combined combustion device is made up of high-pressure gas rifle and low-pressure fuel gas rifle, the former is enclosed within the inside of latter's ring body, all be located in the heat insulation cylindrical shell, respectively be provided with low pressure/high-pressure gas air inlet pipe in the rear end of the two; Described low pressure/high-pressure gas rifle is equipped with the front-end and back-end of annular body, and the stage casing of multitube body; Front end at the two is provided with a shared air nozzle, and air nozzle is the annular concentric structure; Inner chamber at high-pressure gas rifle annular solid is provided with an altar lamp and spark lever thereof; On the sidewall of heat insulation cylindrical shell, be provided with an air hose; Between two gas guns, between they and the heat insulation cylindrical shell, and the cavity between high-pressure gas rifle and the altar lamp spark lever is an air flow channel; Combustion gas/air nozzle is communicated with the hybrid chamber of burner block.Described combustion gas/air nozzle is that the annular jet of the flat slot nozzle of a kind of annular, high-pressure gas rifle constitutes a central cylinder, and the annular space of this central cylinder except that holding altar lamp is the inner air runner of nozzle; Constituted the intermediate air runner of nozzle between the front end of low pressure/high-pressure gas rifle; Constitute the peripheral air runner of nozzle between the front end of low-pressure fuel gas rifle and cylindrical shell; The annular concentric spout of each combustion gas and air duct has constituted annular flat slot nozzle jointly.Another kind of combustion gas/air nozzle is a kind of annular multi-hole nozzle, and the annular front end face of low pressure/high-pressure gas spray gun is provided with along the equally distributed spray orifice of circumference; The annular space of its central cylinder except that holding altar lamp is the inner air runner of nozzle; Constitute the intermediate air runner of nozzle between the front end of low pressure/high-pressure gas spray gun; Constituted the peripheral air runner of nozzle between the front end of low-pressure fuel gas spray gun and cylindrical shell; Annular porous spout and each air flow channel of low pressure/high-pressure gas spray gun have constituted annular multi-hole nozzle jointly.
Advantage of the present utility model is:
(1) can utilize calorific value to be low to moderate 3000KJ/NM
3Combustion gas (KJ: kilojoule NM
3: the normal state of gas cubic meter).
(2) utilizable gaseous-pressure is low to moderate 150mmH
2O (millimeter of water).
(3) gas nozzle can be fit to unclean combustion gas, and is difficult for stopping up coking.
(4) adopt direct injection to mix structure outward, need not add other medium injection gas and air, realization is no less than the air stranding of one deck and cuts combustion gas, and it is fully mixed.
(5) only need an air inlet, realize low oxygen combustion, burning is rapidly complete, and flame temperature height, flame are bright blue look, NO
xPollute few.
(6) can be used for low-pressure combustion, or be used for high-pressure combustion, also can use simultaneously.
(7) can change spout according to working condition requirement, to form difform flame.
Description of drawings:
Fig. 1 is a structural representation of the present utility model
Fig. 2 is the structural representation of first embodiment of nozzle ring
Fig. 3 is the structural representation of second embodiment of nozzle ring
Fig. 4 is the jet group and the flame forms schematic diagram of laminar flow blending
Specific embodiments:
As shown in Figure 1: wherein dotted arrow is represented the high-pressure gas incoming flow in the identifier declaration; Solid arrow is represented the low-pressure fuel gas incoming flow; Dash-dot arrows is represented the air incoming flow; Double-head arrow is represented altar lamp fuel incoming flow.The efficient burning device that low heat value low pressure/high-pressure gas combined combustion device is made up of high-pressure gas rifle 1 and low-pressure fuel gas rifle 2, high-pressure gas rifle 1 is installed in the inside of low-pressure fuel gas rifle 2 ring bodies; Two gas guns 1 and 2 rear end be equipped with separately high-low pressure gas inlet pipe 3 and 4, two gas guns all be located at burner heat insulation cylindrical shell 5 in; The common ground of two lance body structures is: its front-end and back-end are annular body, and its stage casing is the multitube body structure; Front end in two gas guns 1 and 2 is provided with combustion gas/air nozzle ring 6; Inner chamber at high-pressure gas rifle 1 ring body is penetrated with an altar lamp 7, spark lever 8, join the combustion air and enter the back by between two gas guns 1 and 2, between heat insulation cylindrical shell 5 and the gas gun 2 and mobile forward in the air flow channel 10 that is constituted between high-pressure gas rifle 1 and altar lamp 7 spark levers 8, combustion gas nozzle ring 6 is interior to be sprayed in the hybrid chamber of burner block 11 with subsonic speed or supersonic speed.
The operation principle of this gas burner is: low pressure/high-pressure gas is through air inlet pipe 3 and 4, at first enter the rear end of low pressure/high- pressure gas rifle 1 and 2 ground annular rifle body, by multitube body inside, enter the front end of low pressure/high- pressure gas rifle 1 and 2 again, reaching subsonic speed near gas nozzle 6 places, guaranteeing that the combustion gas kinetic energy at this place increases; Combustion air is after air inlet 9 enters, be divided into three the tunnel, the first via flows to spout through the peripheral air runner of 2 in heat insulation cylindrical shell 5 and low-pressure fuel gas rifle, the second tunnel intermediate air runner that enters gas gun 1 and 2 through the multitube body of gas gun flows to spout, Third Road is through the multitube body of gas gun 2 and the multitube body of gas gun 1, and the inner air runner that enters 7 of gas gun 1 and altar lamps flows to spout; Inner air and intermediate flow channel air are rubbed with the hands high-pressure gas and are cut blending, and intermediate flow channel air and peripheral runner air are rubbed with the hands low-pressure fuel gas jointly and cut blending.Because it is bigger to join the input port area of gas-air, is subsonic speed in each the air flow channel speed near nozzle 6 places.
As shown in Figure 2: first embodiment of nozzle 6 is annular flat slot nozzle, and the annular rifle body of high-pressure gas rifle constitutes the central cylinder of nozzle, and the annular space of this central cylinder except that holding altar lamp 7 is the inner air runner 10 of nozzle 6; Constituted the intermediate air runner 10 of nozzle 6 between low pressure/high-pressure gas rifle; Constitute the peripheral channel 10 of nozzle 6 between the front end of low-pressure fuel gas spray gun and heat insulation cylindrical shell; High and low pressure blast tube 13 and 12 and the annular concentric spout of air flow channel 10 constituted annular flat slot nozzle jointly.
As shown in Figure 3: second embodiment of nozzle 6 is annular multi-hole nozzle, and the difference of it and flat slot nozzle only is: high-pressure gas passage 13 and low-pressure fuel gas passage 12 have annular end face, which is provided with equally distributed spray orifice.
As shown in Figure 4: wherein dotted arrow is represented the high-pressure gas incoming flow in the identifier declaration; Solid arrow is represented the low-pressure fuel gas incoming flow; Dash-dot arrows is represented the air incoming flow.From the high-pressure gas spout of nozzle 6 and low-pressure fuel gas spout, fire air and in the pincer attack mixer 15 of nozzle 6 outsides, converge and mix with joining with the combustion gas of subsonic speed or velocity of sound ejection, squeeze, shear, stretch and stir through strong mutually stranding, form uniform mixing jet, guarantee rapid safe combustion, generate thermal-flame, its color is bright blue look.
Claims (4)
1, a kind of low heat value low pressure/high-pressure gas combined combustion device is made of high-pressure gas rifle and low-pressure fuel gas rifle, and the former is enclosed within the latter's inside, all is located in the heat insulation cylindrical shell, all respectively is provided with low pressure/high-pressure gas air inlet pipe in the rear end of the two; It is characterized in that:
Described low pressure/high-pressure gas rifle (1 and 2) is equipped with the leading portion and the back segment of annular body, and the stage casing of multitube body; Front end at the two is provided with a shared air nozzle (6), and nozzle (6) is the annular concentric structure; Inner chamber at the annular rifle body of high-pressure gas rifle (1) is provided with an altar lamp (7) and spark lever (8) thereof; On the sidewall of heat insulation cylindrical shell (5), be provided with an air hose (9); Between two gas guns (1 and 2) and between they and the heat insulation cylindrical shell (5), and the cavity between high-pressure gas rifle (1) and the altar lamp spark lever (8) is air flow channel; Combustion gas/air nozzle (6) is communicated with the hybrid chamber of burner block (11).
2, according to the described low heat value low pressure of claim 1/high pressure associating gas burner, it is characterized in that:
Described combustion gas/air nozzle (6) is the flat slot nozzle of a kind of annular, the hollow rifle body of high-pressure gas rifle (1) constitutes the central cylinder of nozzle, and the annular space of this central cylinder except that holding altar lamp (7) constituted the inner air runner (10) of nozzle (6); Constitute the intermediate air runner (10) of nozzle (6) between the front end of high-pressure gas rifle (1) and low-pressure fuel gas rifle (2); Constituted the peripheral air runner (10) of nozzle (6) between the front end of low-pressure fuel gas rifle (2) and cylindrical shell (5); The annular concentric spout of each combustion gas and air flow channel has constituted annular flat seam shape nozzle (6) jointly.
3, according to the described low heat value low pressure of claim 1/high pressure associating gas burner, it is characterized in that:
Described combustion gas/air nozzle (6) is a kind of annular multi-hole nozzle, and the annular end face of low pressure/high-pressure gas rifle (1 and 2) is provided with equally distributed spray orifice; The annular space of its central cylinder except that holding altar lamp (7) is the air flow channel (10) of nozzle (6); Constituted the intermediate air runner (10) of nozzle (6) between the front end of low pressure/high-pressure gas rifle (1 and 2); Constituted the peripheral air runner (10) of nozzle (6) between the front end of low-pressure fuel gas rifle (2) and cylindrical shell (5); Annular porous type spout and each air flow channel (10) of low pressure/high-pressure gas rifle (1 and 2) have constituted annular multi-hole nozzle (6) jointly.
4, according to the described low heat value of claim 1, low pressure/high-pressure gas combined combustion device, it is characterized in that:
Low pressure/high-pressure gas stream is θ with the ectonexine air at the angle of jet expansion two air-flows
1, θ
2, θ
3, θ
4, scope 0-90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03206888 CN2641475Y (en) | 2003-08-06 | 2003-08-06 | Low heat value low pressure/high pressure fuel gas combination burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03206888 CN2641475Y (en) | 2003-08-06 | 2003-08-06 | Low heat value low pressure/high pressure fuel gas combination burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2641475Y true CN2641475Y (en) | 2004-09-15 |
Family
ID=34288200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03206888 Expired - Lifetime CN2641475Y (en) | 2003-08-06 | 2003-08-06 | Low heat value low pressure/high pressure fuel gas combination burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2641475Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230623A (en) * | 2011-07-12 | 2011-11-02 | 重庆赛迪工业炉有限公司 | Flat combustion device |
| CN102410533A (en) * | 2011-10-27 | 2012-04-11 | 中国科学院广州能源研究所 | Swirl triple-tube burner |
| CN102679360A (en) * | 2012-06-14 | 2012-09-19 | 中科为宇（北京）科技发展有限公司 | Multi-fuel combustor |
| CN101939590B (en) * | 2008-02-05 | 2012-10-10 | 法国圣戈班玻璃厂 | Low NOx gas injector |
| CN105157026A (en) * | 2015-09-30 | 2015-12-16 | 西安航天源动力工程有限公司 | Fuel gas burner used for waste sulfuric acid treatment |
| CN106871117A (en) * | 2017-02-27 | 2017-06-20 | 和烁（张家港）热能设备有限公司 | A kind of burner suitable for fuel gas with low heat value |
| CN110006059A (en) * | 2018-01-04 | 2019-07-12 | 斯文杰 | Micro- gas combination altar lamp ignition system and method |
-
2003
- 2003-08-06 CN CN 03206888 patent/CN2641475Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101939590B (en) * | 2008-02-05 | 2012-10-10 | 法国圣戈班玻璃厂 | Low NOx gas injector |
| CN102230623A (en) * | 2011-07-12 | 2011-11-02 | 重庆赛迪工业炉有限公司 | Flat combustion device |
| CN102410533A (en) * | 2011-10-27 | 2012-04-11 | 中国科学院广州能源研究所 | Swirl triple-tube burner |
| CN102679360A (en) * | 2012-06-14 | 2012-09-19 | 中科为宇（北京）科技发展有限公司 | Multi-fuel combustor |
| CN105157026A (en) * | 2015-09-30 | 2015-12-16 | 西安航天源动力工程有限公司 | Fuel gas burner used for waste sulfuric acid treatment |
| CN106871117A (en) * | 2017-02-27 | 2017-06-20 | 和烁（张家港）热能设备有限公司 | A kind of burner suitable for fuel gas with low heat value |
| CN106871117B (en) * | 2017-02-27 | 2018-11-23 | 和烁（张家港）热能设备有限公司 | A kind of burner suitable for fuel gas with low heat value |
| CN110006059A (en) * | 2018-01-04 | 2019-07-12 | 斯文杰 | Micro- gas combination altar lamp ignition system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130806 Granted publication date: 20040915 |