CN217709540U - Gas ring pipe air ring pipe overhead type combustor - Google Patents
Gas ring pipe air ring pipe overhead type combustor Download PDFInfo
- Publication number
- CN217709540U CN217709540U CN202221511203.3U CN202221511203U CN217709540U CN 217709540 U CN217709540 U CN 217709540U CN 202221511203 U CN202221511203 U CN 202221511203U CN 217709540 U CN217709540 U CN 217709540U
- Authority
- CN
- China
- Prior art keywords
- gas
- air
- ring pipe
- pipe
- burner
- Prior art date
- 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.)
- Active
Links
Images
Abstract
The utility model relates to a gas ring canal air ring overhead type combustor can effectively solve the combustor and use the hot-blast furnace stable in structure of this combustor, increase of service life, and the increasing of heat efficiency reduces the energy consumption, reduces environmental pollution's problem. The gas ring pipe and the air ring pipe are arranged above the arch crown of the burner, the diameter of the gas ring pipe is larger than that of the air ring pipe, the air ring pipe and the gas ring pipe are horizontally spaced from each other up and down, a gas channel and an air channel which are vertically, parallelly, alternately and uniformly arranged are arranged in the wall body of the burner, the gas ring pipe and the air ring pipe are communicated with the gas channel and the air channel in the wall body through branch pipes, the gas channel and the air channel are connected with mixed gas short pipes through short pipes, the mixed gas short pipes are connected with mixed gas nozzles on the inner wall of the combustion chamber, and the lower part of the wall body of the burner is supported outside the upper part of the furnace body. The utility model discloses easy production is built, and power is big, and steady flame hangs down nitrogen, and is highly low, is applicable to large-scale blast furnace supporting, long service life, and the energy consumption is low, and heat utilization efficiency is high, and is energy-concerving and environment-protective.
Description
Technical Field
The utility model relates to a combustor, in particular to a gas ring pipe and air ring pipe overhead type combustor.
Background
The burner is an important combustion device on the blast furnace hot blast stove, according to the actual needs of different blast furnace hot blast stoves to the burner, although there is difference in structure, there is a common part in structure, namely the gas ring pipe and the air ring pipe of the burner are all set up in the burner wall, this kind of structure leads to the wall high, is not suitable for the large-scale blast furnace to use in coordination, only suitable for the single hot blast stove, because there is the problem in structure, in the course of using, because the gas ring pipe, air ring pipe are all set up in the wall, make the conical vault of the hot blast stove too high, cause the furnace body to bear too much, it is apt to damage, the life is short; the distance between the checker bricks in the regenerator of the furnace body and the flame is large, the heating speed of the checker bricks is low, the utilization rate of the thermal efficiency is low, and nitrogen oxides are easy to generate, thereby causing adverse effects on the environment; the expansion stress is large, expansion and shrinkage damage is easy to generate, hot air is large, the outlet structure is unstable, the nozzle is easy to damage, and the service life is influenced; the utilization rate of the heat efficiency is low, and the energy is wasted. Therefore, improvement and innovation of the structure of the burner are imperative.
SUMMERY OF THE UTILITY MODEL
To the above situation, for overcoming the defects of the prior art, the utility model aims to provide a gas ring pipe air ring pipe overhead type combustor, can effectively solve the combustor and use the hot-blast furnace stable in structure of this combustor, increase of service life, the increasing of heat efficiency reduces the energy consumption, reduces environmental pollution's problem.
The utility model provides a technical scheme be, a gas ring pipe air ring pipe overhead type combustor, including the combustor body, the gas ring pipe, the air ring pipe, the top of combustor vault is all arranged in to gas ring pipe and air ring pipe, the diameter of gas ring pipe is greater than the diameter of air ring pipe, the air ring pipe is opened mutually with the upper and lower level of gas ring pipe, be equipped with gas passage in the combustor wall body, air passage, gas passage and the perpendicular parallel alternative align to grid of air passage, gas ring pipe is linked together through the gas passage in gas branch pipe and the wall body, the air ring pipe is linked together through the air passage in air branch pipe and the wall body, gas passage is linked together through gas nozzle stub and gas stub, air passage is linked together through air stub and gas stub, the gas stub is linked together with the gas nozzle of equipartition on the combustion chamber inner wall of combustor, combustor wall body lower part labyrinth slip supports outside furnace body upper portion (well-known technique).
The utility model discloses novel structure is unique, easy production is built, and power is big, and steady flame hangs down nitrogen, and is highly low, is applicable to large-scale blast furnace supporting, and long service life, the energy consumption is low, and the heat utilization efficiency is high, and is energy-concerving and environment-protective, has apparent economy and social.
Drawings
Fig. 1 is a front view of the cross section of the present invention.
Fig. 2 isbase:Sub>A sectional top view of the portionbase:Sub>A-base:Sub>A of fig. 1 according to the present invention.
Fig. 3 is a front view of another embodiment of the present invention.
Fig. 4 isbase:Sub>A sectional top view of the portionbase:Sub>A-base:Sub>A of fig. 3 according to the present invention.
Fig. 5 is a front cross-sectional view of another embodiment of the present invention.
Fig. 6 isbase:Sub>A sectional top view of the portionbase:Sub>A-base:Sub>A of fig. 5 according to the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
As shown in fig. 1-2, the utility model relates to a gas ring pipe air ring pipe overhead type burner, which comprises a burner body, a gas ring pipe and an air ring pipe, wherein the gas ring pipe 1 and the air ring pipe 6 are arranged above a burner vault, the diameter of the gas ring pipe 1 is larger than that of the air ring pipe 6, the air ring pipe 6 and the gas ring pipe 1 are horizontally spaced from each other, a gas passage 3 and an air passage 5 are arranged in a burner wall body 12, the gas passage 3 and the air passage 5 are vertically and parallelly and alternately and uniformly arranged, the gas ring pipe 1 is communicated with the gas passage 3 in the wall body through a gas branch pipe 2, the air ring pipe 6 is communicated with the air passage 5 in the wall body through an air branch pipe 4, the gas passage 3 is communicated with a mixed gas short pipe 13 through a gas short pipe 7, the air passage 5 is communicated with a mixed gas short pipe 13 through an air short pipe 8, the mixed gas short pipe 13 is communicated with a mixed gas nozzle 9 uniformly distributed on the inner wall surface of a burner chamber of the burner, and a labyrinth is arranged outside the upper part 10 of the burner wall body 12 in a sliding manner (a well-known technology).
In order to ensure the use effect and convenient use, the gas ring pipe 1 and the air ring pipe 6 are both formed by annular hollow pipes, and the diameter of the annular hollow pipe of the gas ring pipe 1 is larger than that of the annular hollow pipe of the air ring pipe 6;
the gas channel 3 and the air channel 5 are at least arranged in one row, each gas channel 3 is communicated with the gas ring pipe 1 through a gas branch pipe 2, and each air channel 5 is communicated with the air ring pipe 6 through an air branch pipe 4;
the mixed gas nozzles 9 are uniformly inclined and uniformly distributed on the inner wall of the combustion chamber;
the gas channel 3 and the air channel 5 are respectively provided with an upper row of nozzles and a lower row of nozzles which are annularly arranged, the gas short pipe 7, the air short pipe 8 and the mixed gas short pipe 13 which correspond to each row of nozzles of the four rows of nozzles are communicated with the mixed gas nozzle 9, wherein the first row of spray holes at the upper part are straight spray holes vertical to the central axis of the burner, the second row of spray holes are spray holes which form a rotary cutting angle of 5-15 degrees with the central axis, the third row of spray holes which form a rotary cutting angle of 15-25 degrees with the central axis, and the fourth row of spray holes which form a rotary cutting angle of 25-35 degrees with the central axis;
the spray holes are arranged in one row or a plurality of rows which are uniformly distributed, and when the spray holes are arranged in one row, the rotational flow angle is 5-35 degrees; when the two rows are formed, the two rows are all at 5-35 degrees or one row is directly sprayed and one row is at 5-35 degrees; when the three rows are all 5-35 degrees, or one row is directly sprayed, and the other two rows are 5-25 degrees and 5-35 degrees respectively; when the number of the rows is four, the uniform rotational flow is 5-35 degrees, or one row is directly sprayed, and the rest are 5-15 degrees, 5-25 degrees and 5-35 degrees respectively;
the number of the mixed gas nozzles 9 is the same as that of the air spray holes and the gas spray holes, the air spray holes and the gas spray holes are communicated with the mixed gas short pipe 13 through the air short pipe 8 and the gas short pipe 7, mixed gas is formed in the mixed gas short pipe 13 and is sprayed out through the mixed gas nozzles 9, and a rotational flow mixed gas spraying structure is formed.
A hot air outlet 11 (shown in figure 1) is arranged on the outer upper surface of the furnace body 10;
a hot air outlet 11 (shown in fig. 3) communicated with the interior of the combustor is arranged on the combustor wall 12, or an L-shaped hot air outlet 11 (shown in fig. 5) is arranged in the center of the upper part of the vault of the combustor wall;
the gas ring pipe 1 and the air ring pipe 6 are both provided with air inlet pipe orifices (not marked in the figure and known in the prior art).
Can see by above-mentioned structure, the utility model discloses a combustor body, gas ring pipe and air ring pipe are equipped with in proper order from the top down outside the combustor wall, the gas ring pipe is linked together through gas branch pipe and vertically gas passage, the air ring pipe is linked together through air branch pipe and vertically air passage, gas branch pipe and air branch pipe are arranged in pairs, gas passage is the permutation with air passage, to arranging the gas nozzle stub and the air nozzle stub that are connected with the gas mixture nozzle respectively to both ends in, the gas mixture nozzle is one row or multirow setting, be equipped with the hot air exitus that is linked together with the combustion chamber on the wall body of combustor, or be equipped with L type hot air exitus at vault upper portion center, or set up the hot air exitus on the furnace body of combustor lower part, its novel structure is unique, easy installation and use, area is little, compare with prior art, following outstanding technological advantage has:
1. the utility model has high power, no flame, low nitrogen and low height, is suitable for matching with a large blast furnace, and can particularly realize the configuration of three hot blast furnaces;
2. the height of the conical vault is greatly reduced, the height of the conical vault of the original traditional top-burning hot blast stove can be at least reduced by more than 1 time, the high-temperature bearing and the formation of thermal stress of the refractory lining of the conical vault are reduced, a hot air outlet is arranged at the position of a small cap precombustion chamber, and the structure of the conical vault is based on the stable and long-life independent supporting vault structure of Xinri iron, is a stable and long-life stress-free structure which is independently supported on a stove shell and has no hole, and greatly prolongs the service life;
3. the diameter and the proportion of the diameter hole of the regenerator and the diameter hole of the upper precombustion chamber form a large diameter, so that the flame running distance between the combustion flame and the heating checker bricks is shortened, the checker bricks are quickly heated, the combustion flame running pressure is reduced, the residence time of the flame in the combustion chamber is shortened, the temperature difference of the combustion and air supply vault is reduced, the air temperature is increased, the efficiency is improved, the generation amount of nitrogen oxides is reduced, and the environment friendliness is facilitated;
4. four rows of holes are arranged at four angles, wherein the uppermost row of spray holes are directly sprayed without an angle, the second row of spray holes are in a rotary cutting angle of 5-15 degrees, the third row of spray holes are in a rotary cutting angle of 15-25 degrees, the fourth row of spray holes are in a rotary cutting angle of 25-35 degrees, the spray holes can be arranged in one row or in countless rows, if the spray holes are arranged in one row, the rotational flow angle is 5-35 degrees, if the spray holes are arranged in two rows, both the spray holes can be in a rotary cutting angle of 5-35 degrees, or one row of spray holes are directly sprayed with a rotary cutting angle of 5-35 degrees; if three rows can be all 5-35 degrees, also can be one row of direct injection, the other two rows are respectively 5-25 degrees and 5-35 degrees, if four rows can be all 5-35 degrees of rotational flow, also can be one row of direct injection, and the rest are respectively 5-15 degrees, 5-25 degrees and 5-35 degrees. The purpose of the arrangement can be to adjust the flue gas flow field to increase the diameters of the regenerator and the combustion chamber through the columnar flow multi-rotational flow, thus being beneficial to reducing the height of the checker bricks, being an ultra-large blast furnace which can be easily changed from 4-seat configuration to 3-seat configuration, reducing the investment, reducing the self high-temperature bearing damage rate of the checker bricks, reducing the energy consumption, improving the benefit, prolonging the synchronous service life of the checker bricks of the regenerator of the hot blast stove and the body of the hot blast stove, simultaneously adopting the checker bricks with smaller pore diameters, improving the heat storage and heat exchange performance, reducing the temperature difference between the vault crown and the air supply, further reducing the emission of nitrogen oxides, protecting the environment, saving the energy and further reducing the high wind temperature;
5. by adopting the internal premixed combustion nozzle structure, the mixed combustion is more reasonable, the knocking is weaker, the air excess coefficient is lower, the heat efficiency is higher, the nozzle structure is mature, stable, long-life and not easy to damage, the nozzle structure is an innovation on the structure of the combustor, and the burner has remarkable economic and social benefits.
Claims (9)
1. A gas ring pipe and air ring pipe overhead type combustor comprises a combustor body, a gas ring pipe and an air ring pipe, and is characterized in that the gas ring pipe (1) and the air ring pipe (6) are arranged above a vault of the combustor, the diameter of the gas ring pipe (1) is larger than that of the air ring pipe (6), the air ring pipe (6) and the gas ring pipe (1) are horizontally separated from each other from top to bottom, a gas channel (3) and an air channel (5) are arranged in a combustor wall body (12), the gas channel (3) and the air channel (5) are vertically, parallelly and uniformly arranged, alternately, the gas ring pipe (1) is communicated with the gas channel (3) in the wall body through a gas branch pipe (2), the air ring pipe (6) is communicated with the air channel (5) in the wall body through an air branch pipe (4), the gas channel (3) is communicated with mixed gas short pipes (13) through gas short pipes (7), the air channel (5) is communicated with mixed gas short pipes (13) through air short pipes (8), the mixed gas short pipes (13) are communicated with mixed gas nozzles (9) uniformly distributed on the inner wall body wall of the combustor, and the combustor is supported on the outer wall body (12) in a sliding manner.
2. The burner of claim 1, wherein the gas ring pipe and the air ring pipe (6) are formed by circular hollow pipes, and the diameter of the circular hollow pipe of the gas ring pipe (1) is larger than that of the circular hollow pipe of the air ring pipe (6).
3. The burner of claim 1, wherein at least one row of gas channels (3) and air channels (5) are provided, each gas channel (3) is connected to the gas ring pipe (1) through a gas branch pipe (2), and each air channel (5) is connected to the air ring pipe (6) through an air branch pipe (4).
4. The burner of claim 1, characterized in that the gas mixture nozzles (9) are uniformly inclined and distributed on the inner wall of the combustion chamber.
5. The overhead burner of a gas bustle pipe air bustle pipe according to claim 1, characterized in that the gas channel (3) and the air channel (5) are provided with four rows of upper and lower nozzles which are annularly arranged, the gas short pipe (7), the air short pipe (8) and the mixed gas short pipe (13) corresponding to each row of nozzles of the four rows of nozzles are communicated with the mixed gas nozzle (9), wherein the first row of spray holes on the upper part are straight spray holes vertical to the central axis of the burner, the second row of spray holes form a rotary cutting angle of 5-15 degrees with the central axis, the third row of spray holes form a rotary cutting angle of 15-25 degrees with the central axis, and the fourth row of spray holes form a rotary cutting angle of 25-35 degrees with the central axis.
6. The overhead burner of a gas bustle pipe air bustle pipe according to claim 5, characterized in that said orifices are in one row or in a plurality of rows uniformly distributed, and when in one row, the swirl angle is 5-35 degrees; when the two rows are formed, the two rows are all at 5-35 degrees or one row is directly sprayed and one row is at 5-35 degrees; when the three rows are all 5-35 degrees, or one row is directly sprayed, and the other two rows are 5-25 degrees and 5-35 degrees respectively; when the number of the rows is four, the rotational flow is 5-35 degrees, or one row is directly sprayed, and the rest are 5-15 degrees, 5-25 degrees and 5-35 degrees respectively.
7. The burner of claim 1, wherein the number of the mixture nozzles (9) is the same as the number of the air nozzles and the gas nozzles, the air nozzles and the gas nozzles are communicated with the mixture short pipe (13) through the air short pipe (8) and the gas short pipe (7), and a mixture is formed in the mixture short pipe (13) and is sprayed out by the mixture nozzles (9) to form a swirl mixture spraying structure.
8. The burner of claim 1, wherein the furnace body (10) is provided with hot air outlets (11) on the outside.
9. The burner as claimed in claim 1, wherein the wall (12) of the burner is provided with a hot air outlet (11) communicating with the inside of the burner, or an L-shaped hot air outlet (11) is provided at the center of the upper portion of the arch crown of the wall of the burner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221511203.3U CN217709540U (en) | 2022-06-17 | 2022-06-17 | Gas ring pipe air ring pipe overhead type combustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221511203.3U CN217709540U (en) | 2022-06-17 | 2022-06-17 | Gas ring pipe air ring pipe overhead type combustor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217709540U true CN217709540U (en) | 2022-11-01 |
Family
ID=83800273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221511203.3U Active CN217709540U (en) | 2022-06-17 | 2022-06-17 | Gas ring pipe air ring pipe overhead type combustor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217709540U (en) |
-
2022
- 2022-06-17 CN CN202221511203.3U patent/CN217709540U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201903058U (en) | Novel fuel-gas burner with circular flame and low NOx | |
| CN201043748Y (en) | Gas burner of producer | |
| CN207716416U (en) | The continous way Self-heat-storage flameless burner of the double preheatings of air/gas | |
| CN203364130U (en) | Combustor | |
| CN103267288B (en) | Burner | |
| CN201344535Y (en) | Multi-nozzle, high-flow and fully-upper-inlet-air embedded household gas stove burner | |
| CN101382286B (en) | Air flow circle alternating and equalization injection combustor for stabilizing flame by pre-mixing | |
| CN217709540U (en) | Gas ring pipe air ring pipe overhead type combustor | |
| CN202415584U (en) | Hot-blast stove for mixing gas with air and spraying from evenly distributed nozzles to form reverse-flow preheating combustion | |
| CN217714912U (en) | Overhead burner with gas ring pipe | |
| CN107906516A (en) | A kind of continous way Self-heat-storage flameless burner of the double preheatings of air/gas | |
| CN217709541U (en) | Combustor with external gas ring pipe and external air ring pipe on wall | |
| CN203360477U (en) | Hot blast stove adopting coal gas and air orthogonal jetting and mixing and porous body for combustion supporting | |
| CN202415583U (en) | Hot-blast stove with upwards spraying air and rotational-flow mixed combusting apparatus and coal gas nozzles uniformly distributed in ring channel | |
| CN115074476A (en) | Burner with external gas ring pipe and air ring pipe on wall | |
| CN212430854U (en) | Low NOx heat accumulation flat flame burner | |
| CN100578085C (en) | Multiple fire hole flame-free ceramic burner | |
| CN111928240A (en) | Low-NOx heat-accumulation flat-flame burner and combustion control method | |
| CN211814545U (en) | Hot-blast stove with multiple hot air outlets | |
| CN209836216U (en) | Top combustion hot blast stove with central uniform distribution type burner | |
| CN218710617U (en) | Multi-cyclone top combustion hot blast stove | |
| CN112781047A (en) | Air injection gas premixing entrainment smoke preheating heat accumulator combustion device | |
| CN217781197U (en) | Top combustion stove with catenary staggered upper-spraying upper-outlet | |
| CN202519283U (en) | Hot-blast stove with uniformly distributed nozzles jetting mixed hedging back flows for warm-up combustion in pre-combustion chamber | |
| CN103333978B (en) | Top-burning hot-blast stove with cone-column composite vault structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |