CN203744233U - Afterburning combustor used in waste heat boiler of gas turbine - Google Patents
Afterburning combustor used in waste heat boiler of gas turbine Download PDFInfo
- Publication number
- CN203744233U CN203744233U CN201420112038.3U CN201420112038U CN203744233U CN 203744233 U CN203744233 U CN 203744233U CN 201420112038 U CN201420112038 U CN 201420112038U CN 203744233 U CN203744233 U CN 203744233U
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- China
- Prior art keywords
- tail gas
- chemical industry
- waste heat
- industry tail
- heat boiler
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Abstract
The utility model discloses an afterburning combustor used in a waste heat boiler of a gas turbine. The afterburning combustor comprises a chemical tail gas tube, an ignition device and a flame stabilizing component, wherein a plurality of ejection holes in parallel are formed in one side of a combustion part of the chemical tail gas tube; an ejection tube is vertically extended outwards from each ejection hole; the cross section area of an air flow channel of each ejection tube is 10-20 times of the cross section area of each ejection hole; the flame stabilizing component comprises an inner flame stabilizing cover and an outer flame stabilizing cover which are provided with a V-shaped structure respectively; the inner flame stabilizing cover is integrally formed; V-shaped grooves, flat bottoms and inclined walls are sequentially formed from the center to two sides of the inner flame stabilizing cover; a first through hole and a second through hole parallel to the ejection tubes are sequentially formed from inside to outside of the outer flame stabilizing cover. The afterburning combustor has the characteristics of short flame, complete combustion, high flame rigidity and reasonability in fume distribution, and is applicable to the waste heat boiler, and high temperature fume and toxic chemical tail gases in industry are cooperatively and effectively treated through the waste heat boiler.
Description
Technical field
This scheme belongs to industrial burner technical field, specifically a kind of afterburning burner for gas-turbine waste heat boiler.
Background technology
Waste heat boiler refers to the sensible heat utilizing in the high-temperature flue gas producing in various industrial process and reaches external acting object boiler by heat exchange, and itself does not need fuel supply.Its principle is, high-temperature flue gas is delivered in waste heat boiler by pipeline, by heat exchange, the cold water in waste heat boiler heated, and high-temperature flue gas is lowered the temperature simultaneously, and then plays the secondary utilization to high-temperature flue gas.
For the chemical industry tail gas producing in chemical process, owing to containing toxic component in chemical industry tail gas, for example contain the toxic and harmfuls such as carbon monoxide, hydrogen, hydrogen sulfide, harmless treatment need to be carried out and outer row's condition can be reached, in traditional harmless treatment process, the heat containing in chemical industry tail gas has been wasted.Existing processing method has washing method, absorption absorption process, burning method, high altitude discharge, negative pressure absorbing etc., and above the whole bag of tricks respectively has pluses and minuses, for example high altitude discharge, or environment has been caused to pollution.For example: pressure-variable adsorption (being called for short PSA) method reclaims or purified hydrogen from hydrogen rich stream, change the hydrogen that operating condition can production different purity, hydrogen purity can reach 99.99%, and its principle is utilize the difference of molecular sieve to gas with various molecule " absorption " performance and admixture of gas is separated.For another example, burning method is generally poisonous chemical industry tail gas directly to be inputted to incinerator burn, then outer row.In addition, said method all needs special equipment, invests greatlyr, and need to consume extra power and energy, does not meet the development trend of environmental protection and energy-saving and emission-reduction.
Separately processing for above-mentioned industrial high temperature flue gas and poisonous chemical industry tail gas the problem causing, develop a kind of burner that is applicable to waste heat boiler, is very necessary.In waste heat boiler, there is no combustor component at present, if common burner is directly used in waste heat boiler, the problem causing is: the one, because the air content in high-temperature flue gas is lower with respect to common airborne oxygen content, make the burning of chemical industry tail gas insufficient, cause in the tail gas of secondary emission and contain poisonous and harmful element; The 2nd, the high-temperature flue-gas higher (up to 200 to 800 DEG C) using as air-source, easily causes the pipeline in burner to heat up, and then causes the chemical industry tail gas in pipe to occur carbonization, stops up spray gun, affects service life; The 3rd, when containing hydrogen etc. and dodge the lower chemical industry tail gas of quick-fried some, there is especially potential safety hazard.
Therefore, for the problems referred to above, and in conjunction with the design feature of waste heat boiler, it is very necessary designing a kind of afterburning burner for gas-turbine waste heat boiler, and has certain difficulty, consider the problems referred to above, and further solve waste heat boiler use in the other problems that runs into, farthest rationally utilize the high-temperature flue gas and the chemical industry tail gas that in industrial production, produce, meanwhile, improve the related indexes such as efficiency of combustion, combustion completion, combustibility.
Utility model content
Based on a kind of afterburning burner that is applicable to gas-turbine waste heat boiler will be provided, it is the more excellent burner of a kind of combination property, first to meet the problem of the fully mixed combining combustion of chemical industry tail gas and high-temperature flue gas, chemical industry tail gas is fully burned, the flue gas producing can reach safety dumping standard, the sensible heat in chemical industry tail gas is made full use of simultaneously; The second, make full use of the excess air in high-temperature flue gas, reduce the heat loss of smoke evacuation.Simultaneously by the structural design of burner, especially meet the burning processing requirements of the chemical industry tail gas that contains carbon monoxide or hydrogen safety in waste heat boiler, when the industrial tail gas that uses separate sources burns, meet the combination property requirements such as burner combustion efficiency, combustion completion, combustibility.
The utility model solves the technical scheme that its technical problem adopts: a kind of afterburning burner for gas-turbine waste heat boiler, comprise chemical industry tail gas pipe, igniter and steady flame parts, and it is characterized in that:
One end of described chemical industry tail gas pipe is the interface that connects chemical industry tail gas source, the other end seals, middle part is burning portion, be provided with the first installation portion that carries out socket connection with waste heat boiler furnace wall at chemical industry tail gas duct occlusion end, be provided with for being fixed the second installation portion of connection with boiler wall at the chemical industry tail gas pipe other end
Be provided with the spray orifice of some spread configurations in chemical industry tail gas pipe burning portion along generatrix direction away from the high-temperature flue gas side of originating, outwards vertically extending an internal diameter at spray orifice is greater than spray orifice and connects with spray orifice the jet pipe being connected, the gas channel sectional area of described jet pipe is 10 to 20 times of spray orifice sectional area
Described steady flame parts comprise steady flame inner cover and the steady flame outer cover all with v-shaped structure, described steady flame inner cover is one-body molded and have successively v-depression, flat and skew wall from middle mind-set both sides, described steady flame inner cover is fixed in steady flame outer cover and in steady flame outer cover and forms a groove, in described steady flame outer cover, be provided with successively from inside to outside the first through hole and the second through hole that be arranged in parallel with jet pipe
Be provided with pipe internal and external temperature is carried out to the effectively heat-insulation layer of isolation at described chemical industry tail gas tube outer surface.
Further, described the first through hole is strip hole, and described the second through hole is circular hole.
Further, described jet pipe and chemical industry tail gas pipe are welded to connect.
Further, described the first installation portion is square plate and the square tube of carrying out each other socket connection.
Further, described heat-insulation layer comprises stay-warm case, insulation material and screw assembly, and described stay-warm case is fixed on chemical industry tail gas pipe by screw assembly, in the space of described filled thermal insulation materials between stay-warm case and chemical industry tail gas pipe.
Further, described steady flame inner cover is welded on chemical industry tail gas pipe, and described steady flame outer cover is welded on steady flame inner cover outside.
The beneficial effects of the utility model are:
This burner has following characteristics:
, flame is short, burning is completely, flame rigidity is strong.Be small hole injection because of what adopt, therefore can play the effect that prevents tempering, safer, because of small hole injection, air velocity is high, and flame rigidity is strong.Carry out reduction of speed (it is large that space becomes) simultaneously at jet pipe place, and in the time of interior stable flame cover, the once premix of high-temperature flue gas and chemical industry tail gas, therefore flame stabilization.In chemical industry tail gas as combustion gas flows out when stable flame cover, the high-temperature flue gas of coming in the aperture on outer stable flame cover mixes, burn, behind outer stable flame cover outer, mix with large strand of high-temperature flue gas, now fully burning, therefore whole combustion process burning is completely, flame rigidity is high, meets the requirement of burning in waste heat boiler completely.
2, reasonable distribution flue gas, because nozzle is that many group horizontal row formulas are arranged, greatly improve its duty ratio in waste heat boiler, more rapidly and efficiently rate ground consumes contained air in high-temperature flue gas, meet the feature that high-temperature flue gas utilizes, effectively the utilization rate of oxygen is high, makes the interior temperature distribution of waste heat boiler even.
3, the supporting form of burner is that two ends support, and intensity is high, and supporting & stablizing meets the design feature of waste heat boiler, and is convenient to repair and replacement operation.
4, the burner scope of application is large, can carry out reasonable Arrangement according to the space of waste heat boiler burner hearth, and the significant degree of burning portion can increase and decrease according to the size of burner hearth, can bear the afterburning work of high combustion amount, meanwhile, meet the needs that poisonous chemical industry tail gas content difference needs regulate.
5, owing to there being the existence of steady flame inside and outside cover, can meet the needs that level is installed or vertically install, by reasonably steady flame setting, make to light a fire easy (having hurricane globe, convenient igniting), burning fast, flame stabilization.
6, burning integrated level is high, and collection burns, lights a fire, is detected on one.This kind of burner can be adapted to various different chemical industry tail gas, especially meets the instructions for use of the poisonous chemical industry tail gas that contains carbon monoxide or hydrogen.
Simultaneously, the burner of said structure is incorporated in waste heat boiler, in structure, is bonded to each other, solved burner and waste heat boiler and be combined as a difficult problem for chemical industry tail gas treatment facility, and reach outer row's standard through this chemical industry tail gas after treatment, reduced environmental pollution.Meet the needs of waste heat boiler with the burner of stylish introduction completely, and make full use of sensible heat and combustible in high-temperature flue gas and poisonous chemical industry tail gas, promoted the initial temperature in waste heat boiler burner hearth, and then improved the utilization ratio of waste heat boiler.From entirety, make high-temperature flue gas and poisonous chemical industry tail gas in industry carry out effective processing of combining by waste heat boiler, before having changed, need high-temperature flue gas and poisonous chemical industry tail gas to separate the problem of processing, and in whole process, do not use other fuel, environmental protection and energy-saving effect are outstanding.
Brief description of the drawings
Fig. 1 is top view of the present utility model.
Fig. 2 is A--A cutaway view schematic diagram in Fig. 1.
Fig. 3 is B--B sectional schematic diagram in Fig. 1.
Fig. 4 is C--C sectional schematic diagram in Fig. 1.
Fig. 5 is the schematic diagram of burning.
In figure: 1 chemical industry tail gas pipe, 11 installation side's plates, 12 installation portions, 13 burning portions, 14 spray orifices, 2 steady flame parts, 21 steady flame inner covers, 211V connected in star, 212 is flat, 213 skew walls, 22 steady flame outer covers, 221 grooves, 222 second through holes, 223 first through holes, 3 jet pipes, 4 stay-warm cases, 5 screw assemblies, 6 connectors, 7 gas-turbine waste heat boiler inwalls, 8 hurricane globes, 9 igniters, 91 heat-insulation layers.
Detailed description of the invention
As shown in Figures 1 to 5,
For an afterburning burner for gas-turbine waste heat boiler, comprise chemical industry tail gas pipe, igniter and monitoring device.
The straight tube that chemical industry tail gas pipe 1 is stainless steel, one end of chemical industry tail gas pipe 1 is the interface that is connected with malicious chemical industry tail gas source of the gas, for being connected with chemical industry tail gas, type of attachment is that flange connects.Chemical industry tail gas pipe 1 other end seals, the namely form of blind pipe, and be welded and fixed installation side's plate 11 at blind end, the side's of installation plate 11 carries out socket connection by a connector 6 and gas-turbine waste heat boiler inwall 7.On the pipeline of chemical industry tail gas pipe 1, be also provided with the installation portion 12 for coordinating with gas-turbine waste heat boiler simultaneously, wherein the size of installation portion is larger, to ensure that chemical industry tail gas pipe and associated components enter inwall through waste heat boiler inwall, are convenient to the dismounting maintenance work in later stage.The combustion tube part that is arranged in like this gas-turbine waste heat boiler burner hearth is exactly burning portion 13, is the main position of burning, can carry out as required extension design.The structure of combustion parts is done to detailed introduction below.
Hand over above, chemical industry tail gas pipe 1 is straight tube, in the burning portion of straight tube, a side is holed along generatrix direction, form the spray orifice 14 of some spread configurations, hold intelligiblely, in the time having high-pressure fuel gas in chemical industry tail gas pipe, chemical industry tail gas can spray in spray orifice 14, because spray orifice is less, can prevent the generation of tempering phenomenon.Meet the special characteristic requirements of waste heat boiler in order to reach, the special design that each spray orifice is carried out, particularly, the opening of spray orifice 14 is less, on the chemical industry tail gas pipe of the outside of spray orifice, welding an internal diameter is greater than spray orifice and connects with spray orifice the jet pipe 3 being connected, the gas channel sectional area of jet pipe 3 is 10 to 20 times of spray orifice sectional area, form an air-flow and expand portion, like this when fuel gas is after spray orifice ejects, can form at jet pipe place reduction of speed, the sectional area of reduction of speed amplitude and both passages is inversely proportional to, for preparation work is carried out in the mixing in later stage.
Be provided with serial connection in the burning portion of chemical industry tail gas pipe 1 the steady flame parts 2 of some V-arrangements that are set up in parallel are each other installed, steady flame parts 2 are positioned at a side of chemical industry tail gas pipe, steady flame parts comprise steady flame inner cover 21 and steady flame outer cover 22, wherein, steady flame inner cover and steady flame outer cover are refractory component, from section, steady being shaped as from middle mind-set both sides of flame inner cover 21 is followed successively by v-depression 211, flat 212 and skew wall 213, be overall spademan shape, steady flame inner cover 21 is arranged in steady flame outer cover, and form a groove 221 in steady flame outer cover, groove is arranged along the axis direction of chemical industry tail gas pipe, and on groove, be provided with multiple strip holes of setting corresponding to jet pipe respectively, it is the first through hole 223, for fuel gas and the preliminary mixing that can utilize tail gas, form the effect of steady flame for the first time, on the skew wall of steady flame outer cover, be provided with the second through hole 222 simultaneously, for circular port, to facilitate part high-temperature flue gas by also combustion-supporting.Above-mentioned steady flame parts all adopt refractory material to make, and directly or are indirectly fixed on chemical industry tail gas pipe.
Backward to extend steady flame inner cover parallel with flat bottoms through the v-depression 211 of steady flame parts for above-mentioned jet pipe 3, and chemical industry tail gas just can be out injected like this, forms reasonable configuration relation.
Chemical industry tail gas pipe 1 entirety has been done to INSULATION DESIGN, chemical industry tail gas pipe 1 burning portion be provided with stay-warm case 4 with the opposing side of spray orifice, and in stay-warm case, fill filler-high-temperature-resistant thermal-insulation rock wool with certain fire resistance of heat preservation rock.For meeting the replacing of later stage insulation filling materials, be designed to removable structure, particularly, between stay-warm case and chemical industry tail gas pipe, be provided with the screw assembly 5 that supports chemical industry tail gas pipe, screw assembly comprises screw and locking nut, can adjust and the support strength of chemical industry tail gas pipe by locking nut.
Installation portion essence is a burner mounting disc, and in mounting disc, is fixed with igniter 9, and the chemical industry tail gas pipe between steady flame parts and installation portion is coated with heat-insulation layer 91.Ignition point d is arranged in a nozzle place of the steady flame inner cover of a side, is also being provided with a hurricane globe 8 simultaneously, prevents that useless tail gas air-flow from producing and disturbing ignition process, for ensureing good ignition performance.
This afterburning burner operation principle:
Poisonous chemical industry tail gas enters from chemical industry tail gas pipe 1, and by the aperture of the inside and outside stable flame cover of spray orifice 14(position) discharge quick injection, because spray orifice adopts small hole injection, flame rigidity is strong, increase again a jet pipe, carry out reduction of speed when combustion gas through the jet pipe in spray orifice exit, reduced the length of flame, met existing flame rigidity flame short feature again.In the time of igniting; light a fire by igniter (being contained in igniting installation group); flammule when igniting is subject to the protection of hurricane globe 8; flame is not blown out by high-temperature flue gas; when burning, high-temperature flue gas enters (see figure 5) from the back side of spray orifice, carries out mixing for twice of high-temperature flue gas and chemical industry tail gas respectively by the first through hole and the second through hole; and primary combustion, finally mix with large-area high-temperature flue gas and fully burning.Burner two ends are supported by mounting disc and installation side's plate, form two strong points, and structure is more firm, simultaneously more easy to replace and maintain.When this burner is installed in stove, adopt row formula to install, can singly organize and also can organize use simultaneously more, chemical industry tail gas spray orifice to layout, can effectively utilize the excess air in high-temperature flue gas combustion-supporting perpendicular to flue stream.This burner has well met the burning condition in waste heat boiler, can meet the requirement of malicious chemical industry tail gas and high-temperature flue gas Combined Treatment.
Embodiment recited above is described preferred embodiment of the present utility model; not scope of the present utility model is limited; do not departing under the prerequisite of the utility model design spirit; relevant technical staff in the field, to various distortion of the present utility model and improvement, all should expand in protection domain as determined in the utility model claims.
Claims (6)
1. for an afterburning burner for gas-turbine waste heat boiler, comprise chemical industry tail gas pipe, igniter and steady flame parts, it is characterized in that:
One end of described chemical industry tail gas pipe is the interface that connects fuel gas source, the other end seals, middle part is burning portion, be provided with the first installation portion that carries out socket connection with boiler wall at chemical industry tail gas duct occlusion end, be provided with for being fixed the second installation portion of connection with boiler wall at the chemical industry tail gas pipe other end
Be provided with the spray orifice of some spread configurations in chemical industry tail gas pipe burning portion along generatrix direction away from the high-temperature flue gas side of originating, outwards vertically extending an internal diameter at described spray orifice is greater than spray orifice and connects with spray orifice the jet pipe being connected, the gas channel sectional area of described jet pipe is 10 to 20 times of spray orifice sectional area
Described steady flame parts comprise steady flame inner cover and the steady flame outer cover all with v-shaped structure, described steady flame inner cover is one-body molded and have successively v-depression, flat and skew wall from middle mind-set both sides, described steady flame inner cover is fixed in steady flame outer cover, in described steady flame outer cover, be provided with successively from inside to outside the first through hole and the second through hole that be arranged in parallel with jet pipe
Be provided with pipe internal and external temperature is carried out to the effectively heat-insulation layer of isolation at described chemical industry tail gas tube outer surface.
2. a kind of afterburning burner for gas-turbine waste heat boiler according to claim 1, is characterized in that, described the first through hole is strip hole, and described the second through hole is circular hole.
3. a kind of afterburning burner for gas-turbine waste heat boiler according to claim 1, is characterized in that, described jet pipe and chemical industry tail gas pipe are welded to connect.
4. a kind of afterburning burner for gas-turbine waste heat boiler according to claim 3, is characterized in that, described steady flame inner cover is welded on chemical industry tail gas pipe, and described steady flame outer cover is welded on steady flame inner cover outside.
5. a kind of afterburning burner for gas-turbine waste heat boiler according to claim 1, is characterized in that, described the first installation portion is square plate and the square tube of carrying out each other socket connection.
6. a kind of afterburning burner for gas-turbine waste heat boiler according to claim 1, it is characterized in that, described heat-insulation layer comprises stay-warm case, insulation material and screw assembly, described stay-warm case is fixed on chemical industry tail gas pipe by screw assembly, in the space of described filled thermal insulation materials between stay-warm case and chemical industry tail gas pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420112038.3U CN203744233U (en) | 2014-03-13 | 2014-03-13 | Afterburning combustor used in waste heat boiler of gas turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420112038.3U CN203744233U (en) | 2014-03-13 | 2014-03-13 | Afterburning combustor used in waste heat boiler of gas turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203744233U true CN203744233U (en) | 2014-07-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420112038.3U Withdrawn - After Issue CN203744233U (en) | 2014-03-13 | 2014-03-13 | Afterburning combustor used in waste heat boiler of gas turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203744233U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807850A (en) * | 2014-03-13 | 2014-05-21 | 杜建吉 | Afterburning burner for gas turbine waste heat boiler |
-
2014
- 2014-03-13 CN CN201420112038.3U patent/CN203744233U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807850A (en) * | 2014-03-13 | 2014-05-21 | 杜建吉 | Afterburning burner for gas turbine waste heat boiler |
| CN103807850B (en) * | 2014-03-13 | 2015-12-16 | 杜建吉 | A kind of afterburning burner for gas-turbine waste heat boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JI NAN TONGZHI INNOVATION ENERGY TECHNOLOGY CO., L Free format text: FORMER OWNER: DU JIANJI Effective date: 20141014 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20141014 Address after: The development zone of Jiyang County of Ji'nan City, Shandong province 251400 Taixing Street No. 6 Patentee after: Ji'nan Tongzhi Innovation Energy Technology Co., Ltd. Address before: The Jiyang County of Ji'nan City, Shandong province 251400 Taixing Economic Development Zone East Road No. 6 Patentee before: Du Jianji |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140730 Effective date of abandoning: 20151216 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |