CN207849328U - For four-in-one or the waste heat boiler with SCR denitration function of two combined into one heating furnace - Google Patents
For four-in-one or the waste heat boiler with SCR denitration function of two combined into one heating furnace Download PDFInfo
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- CN207849328U CN207849328U CN201721873092.XU CN201721873092U CN207849328U CN 207849328 U CN207849328 U CN 207849328U CN 201721873092 U CN201721873092 U CN 201721873092U CN 207849328 U CN207849328 U CN 207849328U
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- waste heat
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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Abstract
The utility model discloses a kind of waste heat boilers with SCR denitration function being used for four-in-one or two combined into one heating furnace, including waste heat boiler drum, steelframe, gas approach, exhaust gases passes, exhaust pass, high temperature superheater, low temperature superheater, counter flow evaporator, dilution wind preheater, Benitration reactor, high-temperature economizer and low-level (stack-gas) economizer, exhaust gases passes are arranged perpendicular to ground, and the exhaust gases passes are fixed on the steelframe；High temperature superheater, low temperature superheater, counter flow evaporator, dilution wind preheater, Benitration reactor, high-temperature economizer and low-level (stack-gas) economizer are successively set in exhaust gases passes from top to bottom.The waste heat boiler with denitration function for being used for four-in-one or two combined into one heating furnace of the utility model, you can to realize the purpose for fully efficiently using heating furnace tail flue gas waste heat, energy-saving effect is notable, and can remove the nitrogen oxides in flue gas and realize denitrating flue gas.
Description
Technical field
The utility model is related to a kind of waste heat pots with SCR denitration function being used for four-in-one or two combined into one heating furnace
Stove.
Background technology
In order to improve heater efficiency, generally use is strong for Large Scale and Continuous reformer four-in-one or two combined into one heating furnace at present
The high-temperature flue gas waste heat of circulation Waste-heat Boiler recycling heating exit processed.Forced-circulation Waste-heat Boiler heating surface is directly arranged simultaneously
In heating furnace furnace roof.Heating furnace does not set air-introduced machine, and the natural draft formed by chimney is drawn flue gas.Forced-circulation Waste-heat Boiler
Using the high-temperature flue gas of furnace outlet superheated steam occurs for heating surface.Overcome Forced-circulation Waste-heat Boiler by forced circulation pump
Resistance.After the high-temperature flue gas of furnace outlet carries out waste heat recovery by each heating surface of Forced-circulation Waste-heat Boiler, into cigarette
Chimney is discharged into air.
It due to not setting air-introduced machine, is limited by chimney height, the flue gas nature draft formed by chimney is smaller.By waste heat
The flue gas flow rate of each heating surface of boiler is relatively low, causes the coefficient of heat transfer relatively low, and energy utilization rate is relatively low, can't slough in flue gas
Nitrogen oxides causes the energy conservation and environmental protection ability of the device poor.Along with each heating surface of waste heat boiler is arranged in heating furnace furnace roof,
The structure of each heating surface of waste heat boiler is limited by heating furnace space structure, leads to the volume and weight of each heating surface of waste heat boiler
It is very big, cause waste heat boiler equipment investment larger, installation difficulty is also larger.
And most of waste heat boilers do not have denitration function or only have preliminary denitration functional unit, for example use low nitrogen
The modes such as denitration auxiliary agent are sprayed into burner, stove.Above-mentioned denitration mode denitration efficiency is relatively low, cannot effectively remove contained in flue gas
Nitrogen oxides, cause atmosphere pollution, welding.
Utility model content
The purpose of the utility model is to overcome the defects of the prior art, provide a kind of for four-in-one or two combined into one heating furnace
The waste heat boiler with SCR denitration function, have it is light-weight, reasonable for structure, heat-transfer effect is good, and modularization easy to implement is set
Meter, it is easy for installation, in addition while to flue gas waste heat recovery, have the function of SCR denitration, can realize to nitrogen oxidation in flue gas
The absorption and removing of object.
Realizing the technical solution of above-mentioned purpose is：For four-in-one or two combined into one heating furnace with SCR denitration function
Waste heat boiler, the heating furnace include the heating furnace radiant section that flue gas of heating furnace air-introduced machine and exhanst gas outlet are located at top, special
Sign is that the waste heat boiler includes waste heat boiler drum, steelframe, gas approach, exhaust gases passes, exhaust pass, hyperthermia and superheating
Device, low temperature superheater, counter flow evaporator, dilution wind preheater, Benitration reactor, high-temperature economizer and low-level (stack-gas) economizer, wherein：
The steelframe is individual support construction and is directly installed on one side ground of the heating furnace radiant section；
The exhaust gases passes are arranged perpendicular to ground, and the exhaust gases passes are fixed on the steelframe；
One end of the gas approach is connected to the top of the exhaust gases passes, the other end by one or several smoke pipes with
The connection of exhanst gas outlet at the top of the heating furnace radiant section；
One end of the exhaust pass is connected to the bottom of the exhaust gases passes, and the other end connects the flue gas of heating furnace and draws
The air inlet of wind turbine；
Waste heat boiler heating surface is disposed in the exhaust gases passes, the waste heat boiler heating surface is connected by steam-water pipe
The waste heat boiler drum；
The high temperature superheater, low temperature superheater, counter flow evaporator, dilution wind preheater, Benitration reactor, high temperature save coal
Device and low-level (stack-gas) economizer are successively set on from top to bottom in the exhaust gases passes.
The above-mentioned waste heat boiler with SCR denitration function for being used for four-in-one or two combined into one heating furnace, wherein the cigarette
The waste heat boiler heating surface of Natural Circulation is disposed in gas channel；The waste heat boiler is the nature for being not required to setting forced circulation pump
Circulation Waste-heat Boiler.
The above-mentioned waste heat boiler with SCR denitration function for being used for four-in-one or two combined into one heating furnace, wherein described remaining
Heat boiler heating surface includes overheat heating surface, evaporating heating surface and economizer surface, may also include water conservation heating surface.
The above-mentioned waste heat boiler with SCR denitration function for being used for four-in-one or two combined into one heating furnace, wherein the height
Rib heat exchanging pipe is respectively adopted in warm superheater, low temperature superheater and counter flow evaporator；
It is above-mentioned for four-in-one or the waste heat boiler with SCR denitration function of two combined into one heating furnace, wherein it is described enter
It is disposed with deflector and flow straightening grid in mouth flue, exhaust gases passes or exhaust pass.
The above-mentioned waste heat boiler with SCR denitration function for being used for four-in-one or two combined into one heating furnace, wherein described dilute
It releases wind preheater and Benitration reactor is all made of modular organization.
The waste heat boiler with SCR denitration function for being used for four-in-one or two combined into one heating furnace of the utility model, has
Light-weight, reasonable for structure, heat-transfer effect is good, it is easy for installation the advantages that, and have the higher thermal efficiency, it is easier to realize modularization
Structure, it is easier to ensure that quality, small investment.While to flue gas waste heat recovery, have the function of SCR denitrations, realizes in flue gas
The absorption and removing of nitrogen oxides.
Description of the drawings
Fig. 1 is the utility model for four-in-one or the waste heat boiler with SCR denitration function of two combined into one heating furnace
Structural schematic diagram.
Specific implementation mode
In order to make those skilled in the art be better understood when the technical solution of the utility model, with reference to attached
Its specific implementation mode is described in detail in figure：
Referring to Fig. 1, the most preferred embodiment of the utility model, a kind of having for four-in-one or two combined into one heating furnace
The waste heat boiler of SCR denitration function, heating furnace include the heating furnace spoke that flue gas of heating furnace air-introduced machine 2 and exhanst gas outlet are located at top
Penetrate a section (not shown)；Waste heat boiler 1 includes waste heat boiler drum (not shown), steelframe 11, gas approach 12, flue gas
Channel 13, exhaust pass 14, high temperature superheater, low temperature superheater, counter flow evaporator, dilution wind preheater, Benitration reactor 15,
High-temperature economizer and low-level (stack-gas) economizer.
Steelframe 11 is individual support construction and is directly installed on one side ground of heating furnace radiant section；Exhaust gases passes
13 are arranged perpendicular to ground, and exhaust gases passes 13 are fixed on steelframe 11；The top of one end and exhaust gases passes 13 of gas approach 12
Connection, the other end pass through one or the connection of several smoke pipes and the exhanst gas outlet at the top of heating furnace radiant section；Exhaust pass 14
One end is connected to the bottom of exhaust gases passes 13, and the other end connects the air inlet of flue gas of heating furnace air-introduced machine 2 by flue；Heating furnace
The bottom of chimney 3 fix on the ground, and chimney 3 is arranged side by side with steelframe 1, and the lower part of chimney 3 passes through flue and heating furnace
The air outlet of smoke induced draught fan 2 is connected to；Waste heat boiler heating surface 16, waste heat boiler heating surface 16 are disposed in exhaust gases passes 13
Waste heat boiler drum is connected by steam-water pipe, waste heat boiler drum is arranged in the top of waste heat boiler 1 or is arranged in heating
On the steel construction of stove radiant section；High temperature superheater, low temperature superheater, counter flow evaporator, dilution wind preheater, Benitration reactor
15, high-temperature economizer and low-level (stack-gas) economizer are successively set on from top to bottom in exhaust gases passes 13.
Single-layer or multi-layer can be used in dilution wind preheater and Benitration reactor 15, dilutes wind preheater and Benitration reactor
(single-layer or multi-layer) is arranged between heat transmission equipment i.e. counter flow evaporator and high-temperature economizer, reduces the complexity of arrangement, whole
Body is compact-sized.Dilution wind preheater and Benitration reactor are all made of modular organization, and manufacturing process is completed in manufactory, can pole
The big workmanship for ensuring equipment.Facilitate in-site installation simultaneously, accelerates installation progress, greatly shorten construction period.
What is arranged in exhaust gases passes 13 is the waste heat boiler heating surface 16 of Natural Circulation；Waste heat pot provided with Natural Circulation
After stove heating surface 16, forced circulation pump need not be arranged in waste heat boiler, keep waste heat boiler operation safer, reliable.Waste heat pot
Stove is the Natural Circulation HRSG for being not required to setting forced circulation pump.Waste heat boiler heating surface 16 includes overheat heating surface, saves
Coal device heating surface and evaporating heating surface may also include water conservation heating surface.
Steelframe 11 for carrying exhaust gases passes 13 and each waste heat boiler heating surface, make the structure design of waste heat boiler 1 not by
The steel construction of heating furnace radiant section limits.Staircase, waste heat boiler 1 convenient to overhaul are additionally provided on steelframe 11.
Flue gas of heating furnace air-introduced machine 2 makes the flue gas resistance of waste heat boiler heating surface 16 not limited by stack draught, can adopt
The coefficient of heat transfer is improved with higher flue gas flow rate, waste heat boiler structure is more reasonable, and exhaust gas temperature can be made lower, and the thermal efficiency is more
It is high.Flue gas of heating furnace air-introduced machine 2 can be one, can also be Liang Tai, wherein a conduct is spare.
High temperature superheater, low temperature superheater and counter flow evaporator use rib heat exchanging pipe or light pipe heat exchanger tube；Arrangement spirit
It is living, different heat exchanger tubes can be used according to different space structures.High-temperature economizer uses rib heat exchanging pipe；Fin type heat exchange
Pipe improves exchange capability of heat, reduces heat exchange area, reduces cost of equipment, compact-sized, is exhaust pass 14, dilution wind preheating
The arrangement of device and Benitration reactor 15 saves space.Low-level (stack-gas) economizer uses light pipe heat exchanger tube, prevents denitrating catalyst from crystallizing, shadow
Ring safe operation of the boiler.Economizer uses water heat medium technology, prevents economizer from dew point corrosion occurs.
It is disposed with deflector and flow straightening grid in gas approach 12, exhaust gases passes 13 or exhaust pass 14, makes flue gas flow field
It is evenly distributed, enhances denitrating flue gas effect.
A kind of waste heat boiler with SCR denitration function being used for four-in-one or two combined into one heating furnace of the utility model,
Operation principle is：The flue gas come out from the exhanst gas outlet at the top of heating furnace radiant section enters exhaust gases passes 13 by gas approach 12,
And pass through high temperature superheater, low temperature superheater and counter flow evaporator successively, subsequently into dilution wind preheater and Benitration reactor
15, it dilutes wind preheater and Benitration reactor 15 and adsorb simultaneously denitration, the flue gas after denitration to the nitrogen oxides in flue gas
Pass through high-temperature economizer, low-level (stack-gas) economizer and exhaust pass 13 successively, it then will be after denitration by flue gas of heating furnace air-introduced machine 2
Flue gas is delivered to chimney 3, and most the flue gas after denitration is discharged into along chimney 3 in air afterwards.
The waste heat boiler with SCR denitration function for being used for four-in-one or two combined into one heating furnace of the utility model, heating
Kiln gas air-introduced machine 2, under can drawing the high-temperature flue gas that heating furnace radiant section exports by the exhaust gases passes 13 of waste heat boiler 1
Come, and arrange Natural Circulation HRSG heating surface 16 on the exhaust gases passes of waste heat boiler 1 13, it is not necessary that forced circulation is arranged
Pump.Since the waste heat boiler arranges that the steel construction load of heating furnace radiant section is greatly lowered, steel knot on the ground by steelframe 11
Structure weight saving, investment also can accordingly reduce very much.
In conclusion the waste heat with SCR denitration function for being used for four-in-one or two combined into one heating furnace of the utility model
Boiler is designed using compound multi-stage heat exchanger, while embedded SCR denitration function, you can fully efficiently uses heating furnace to realize
The purpose of tail flue gas waste heat, energy-saving effect is notable, and can have weight to the absorption simultaneously denitration of nitrogen oxides in effluent, equipment
Amount is light, heat-transfer effect is good, modularized design easy to implement, the advantages that being easily installed.
Those of ordinary skill in the art it should be appreciated that more than embodiment be intended merely to illustrate that this practicality is new
Type, and be not used as the restriction to the utility model, as long as in the spirit of the utility model, to the above
Variation, the modification of embodiment will all be fallen in the Claims scope of the utility model.
Claims (6)
1. for four-in-one or the waste heat boiler with SCR denitration function of two combined into one heating furnace, the heating furnace includes heating
Kiln gas air-introduced machine and exhanst gas outlet are located at the heating furnace radiant section at top, which is characterized in that the waste heat boiler includes waste heat
It is boiler drum, steelframe, gas approach, exhaust gases passes, exhaust pass, high temperature superheater, low temperature superheater, counter flow evaporator, dilute
Wind preheater, Benitration reactor, high-temperature economizer and low-level (stack-gas) economizer are released, wherein：
The steelframe is individual support construction and is directly installed on one side ground of the heating furnace radiant section；
The exhaust gases passes are arranged perpendicular to ground, and the exhaust gases passes are fixed on the steelframe；
One end of the gas approach is connected to the top of the exhaust gases passes, the other end by one or several smoke pipes with it is described
The connection of exhanst gas outlet at the top of heating furnace radiant section；
One end of the exhaust pass is connected to the bottom of the exhaust gases passes, and the other end connects the flue gas of heating furnace air-introduced machine
Air inlet；
Waste heat boiler heating surface is disposed in the exhaust gases passes, described in the waste heat boiler heating surface is connected by steam-water pipe
Waste heat boiler drum；
The high temperature superheater, low temperature superheater, counter flow evaporator, dilution wind preheater, Benitration reactor, high-temperature economizer and
Low-level (stack-gas) economizer is successively set on from top to bottom in the exhaust gases passes.
2. the waste heat boiler with SCR denitration function according to claim 1 for being used for four-in-one or two combined into one heating furnace,
It is characterized in that, being disposed with the waste heat boiler heating surface of Natural Circulation in the exhaust gases passes；The waste heat boiler is to be not required to set
Set the Natural Circulation HRSG of forced circulation pump.
3. the waste heat boiler with SCR denitration function according to claim 1 for being used for four-in-one or two combined into one heating furnace,
It is characterized in that, the waste heat boiler heating surface includes overheat heating surface, evaporating heating surface and economizer surface, may also include
Water conservation heating surface.
4. the waste heat boiler with SCR denitration function according to claim 1 for being used for four-in-one or two combined into one heating furnace,
It is characterized in that, rib heat exchanging pipe is respectively adopted in the high temperature superheater, low temperature superheater and counter flow evaporator.
5. the waste heat boiler with SCR denitration function according to claim 1 for being used for four-in-one or two combined into one heating furnace,
It is characterized in that, being disposed with deflector and flow straightening grid in the gas approach, exhaust gases passes or exhaust pass.
6. the waste heat boiler with SCR denitration function according to claim 1 for being used for four-in-one or two combined into one heating furnace,
It is characterized in that, the dilution wind preheater and Benitration reactor are all made of modular organization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721873092.XU CN207849328U (en) | 2017-12-28 | 2017-12-28 | For four-in-one or the waste heat boiler with SCR denitration function of two combined into one heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721873092.XU CN207849328U (en) | 2017-12-28 | 2017-12-28 | For four-in-one or the waste heat boiler with SCR denitration function of two combined into one heating furnace |
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| Publication Number | Publication Date |
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| CN207849328U true CN207849328U (en) | 2018-09-11 |
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| CN201721873092.XU Active CN207849328U (en) | 2017-12-28 | 2017-12-28 | For four-in-one or the waste heat boiler with SCR denitration function of two combined into one heating furnace |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107990295A (en) * | 2017-12-28 | 2018-05-04 | 上海宁松热能环境工程有限公司 | There is the waste heat boiler of SCR denitration for four-in-one or two combined into one heating furnace |
| CN109631047A (en) * | 2018-12-19 | 2019-04-16 | 苏州新区环保服务中心有限公司 | A kind of incineration of waste disposal system and dangerous waste incineration processing method |
-
2017
- 2017-12-28 CN CN201721873092.XU patent/CN207849328U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107990295A (en) * | 2017-12-28 | 2018-05-04 | 上海宁松热能环境工程有限公司 | There is the waste heat boiler of SCR denitration for four-in-one or two combined into one heating furnace |
| CN109631047A (en) * | 2018-12-19 | 2019-04-16 | 苏州新区环保服务中心有限公司 | A kind of incineration of waste disposal system and dangerous waste incineration processing method |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Jinhui town Fengxian District Shanghai city 201403 North Village four group B -28 Co-patentee after: Zhejiang ningsong thermal boiler equipment Co., Ltd Patentee after: Shanghai Ningsong Heat Energy Environment Engineering Co., Ltd. Address before: Jinhui town Fengxian District Shanghai city 201403 North Village four group B -28 Co-patentee before: Zhejiang better thermal energy boiler equipment Co., Ltd. Patentee before: Shanghai Ningsong Heat Energy Environment Engineering Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder |