CN201964394U - Boiler-front gas making boiler system - Google Patents
Boiler-front gas making boiler system Download PDFInfo
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- CN201964394U CN201964394U CN2010205680348U CN201020568034U CN201964394U CN 201964394 U CN201964394 U CN 201964394U CN 2010205680348 U CN2010205680348 U CN 2010205680348U CN 201020568034 U CN201020568034 U CN 201020568034U CN 201964394 U CN201964394 U CN 201964394U
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- gas
- boiler
- coal
- gazogene
- stokehold
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
The utility model discloses a boiler-front gas making boiler system including a gas-fired boiler, a coal gas generating device, a dust removing device, a gas-fired boiler and a smoke circulating and utilizing device. The gas-fired boiler includes a burner and a hearth, a coal gas outlet of the coal gas generating device is connected with the dust removing device, and the dust removing device is connected with the burner at the hearth; and a smoke outlet of the hearth is connected with a reduction layer of the coal gas generating device through the smoke circulating and utilizing device. The boiler-front gas making boiler system can be in rapid butt joint with the present boiler; a plurality of safety devices, such as an evacuation valve, a water seal, a bell jar safety device and the like, are utilized, therefore, the running is safe; the smoke circulation and utilization can greatly reduce the CO2 emission load and lower the fuel consumption, therefore, the purposes of energy conservation and environmental protection are achieved. The boiler-front gas making boiler system can be widely applied to the energy-saving improvement field of coal-to-gas and oil-to-gas boilers, etc.
Description
Technical field
The utility model relates to that oil changes gas, coal changes gas boiler system reform technical field, is specifically related to a kind of stokehold system gas boiler system.
Background technology
At present, all types of fire coals, heavy oil boiler are prevalent in many cities of China and densely inhabited district.All the time, because equipment is outmoded, combustion system falls behind, cause serious smoke pollution and energy waste.Along with the raising of the constantly soaring and environmental requirement of energy prices, the boiler user seeks the road of energy-saving and emission-reduction one after another.
Practice result for many years shows both at home and abroad, and the basic outlet of boiler energy-saving emission-reduction transformation is to change fuel structure, equipment or change combustion system develop skill.Be subjected to the restriction of energy supply and economic condition, China does not have the ability of promoting diesel oil, natural gas or electricity at large at present, and except that a few cities or developed area, the situation that with the coal is main fuel is with long-term existence.Therefore, be badly in need of a kind of stokehold system gas boiler of design system.
China's coal reserves is abundant, relies on the abundant gasifiable coal resource of reserves, utilizes the coal gasifying process, realizes stokehold system gas, and by the heating gas burning, realizes the adjustment of boiler oil structure and combustion system.
Reducing zone in gas generator, high temperature CO
2With steam and red-hot carbon generation reduction reaction, absorb the heat that bed is accumulated, generate CO and H
2(main component of heating gas).Contain a large amount of CO in the flue gas that the heating gas burning produces
2And steam, if be back to the gas generator reducing zone,, also reduced CO with reducing the consumption of coal
2Discharge capacity.
The utility model content
The purpose of this utility model is to overcome deficiency of the prior art, provide that a kind of flow process is simple, energy-efficient, the stokehold system gas boiler system of safety and environmental protection, in existing boiler improvement process, can with existing boiler rapid abutting joint, reduce the boiler improvement dynamics, reduce investment.The utility model is achieved through the following technical solutions.
Stokehold system gas boiler system, comprise gas fired-boiler, gazogene, dust arrester and flue gas recirculation use device, described gas fired-boiler comprises burner and burner hearth, and the gas exit of gazogene is connected with dust arrester, and dust arrester is connected with the burner at burner hearth place again; The exhanst gas outlet of burner hearth is connected to the reducing zone of gazogene again by the flue gas recirculation use device.
In the above-mentioned stokehold system gas boiler system, described gas fired-boiler also comprises economizer and air preheater, delivers to the reducing zone of gazogene behind flue gas process economizer in the burner hearth and the air preheater again through the flue gas recirculation use device.
In the above-mentioned stokehold system gas boiler system, described gazogene comprises gas generator and advances device for coal, enter the top that device for coal is positioned at gas generator, material is ash bed, oxide layer, reducing zone, destructive distillation layer, drying layer and dead level from bottom to top in the gas generator stove.
In the above-mentioned stokehold system gas boiler system, described flue gas recirculation use device is the flue gas recirculation pump, the gas fired-boiler flue gas is partly refluxed to the reducing zone of gas generator.
In the above-mentioned stokehold system gas boiler system, the bottom air inlet mouth of described gas generator and gas fired-boiler all is connected with blast pipe.
In the above-mentioned stokehold system gas boiler system, described dust arrester comprises bell jar safety, deduster and the Safety water seal that connects successively from top to bottom, the air inlet of deduster is connected with the gas exit of gazogene, and the gas outlet of deduster is connected with burner by Safety water seal.
In the above-mentioned stokehold system gas boiler system, the gas generator shoulder is provided with exhaust-valve.
Compared with prior art, the utlity model has following advantage and effect:
(1) efficient and convenient.The utility model device can make full use of original boiler, only need install air burner additional, can dock with gazogene, transforms convenient and swiftly, does not influence production, takes up an area of little.
(2) energy-efficient.By coal gas, efficiency of energy utilization can be provided greatly, efficiency of combustion can reach 99%; The flue gas partial reflux utilizes, and can reduce coal consumption, can save coal nearly 18% than traditional gas generator.
(3) safety and environmental protection.The utility model has adopted gas generator to establish exhaust-valve, bell jar safety valve, the guarantee of Safety water seal triple safe, guarantees the safe operation of system; Through the purified gas after dedusting, the water-bath, burning back less smoke; The flue gas partial reflux utilizes, CO
2Discharge capacity Deng pollutant can reduce more than 20%.
Description of drawings
Fig. 1 is the schematic diagram of stokehold system gas boiler system in the embodiment.
The specific embodiment
Below in conjunction with accompanying drawing concrete enforcement of the present utility model is further described, but enforcement of the present utility model and protection domain are not limited thereto.
As Fig. 1, this stokehold system gas boiler system mainly comprises gazogene 2, dust arrester 6, gas fired-boiler 10 and flue gas recirculation use device.Gazogene 2 comprises gas generator 3 and advances device for coal 5 that gas generator 3 shoulders are provided with exhaust-valve 4.Dust arrester 6 is safe deduster, comprises bell jar safety 7, deduster 8, Safety water seal 9.Gas fired-boiler 10 comprises water-gas burner 12, burner hearth 11, economizer 13, air preheater 14.
Described flue gas recirculation use device 15 is the reducing zones that boiler smoke are partly refluxed to gas generator 3 by the flue gas recirculation pump.Described gazogene 2 in process of production, gasifying medium (air or steam or the two gaseous mixture) enters producer 3 beds from the undergrate blast pipe, the raw gas that gasification generates is exported from top.Material 16 can be described as ash bed, oxide layer, reducing zone, destructive distillation layer, drying layer and dead level from bottom to top in the described stove.
Coal charge is delivered to the into coal hopper of device for coal 5 by conveyer belt, and coal charge evenly falls into gas generator 3 under the effect of the plate feed of device for coal.
Air mixes as gasifying medium with steam in the stokehold through air blast 1, enters in the stove from the undergrate blast pipe, carries out heat exchange with slag earlier, enter oxide layer then, strong oxidation reaction takes place in fixed carbon in oxygen wherein and the coal, emits a large amount of heat, makes bed keep sufficiently high temperature; The high temperature CO that produces
2Mix with the flue gas that flue gas recirculation pump 15 refluxes with steam, enter reducing zone, high temperature CO
2With steam and red-hot carbon generation reduction reaction, absorb the heat that bed is accumulated, generate CO and H
2Via destructive distillation layer, drying layer, enter the dead level on bed of material top then, multiple gases is compiled the formation raw gas.
The raw gas that gazogene 2 produces at first enters deduster 8, and entering water bath desulfurization then is Safety water seal 9, makes cleaner coal gas.
General boiler heat load fluctuation is bigger, and the burning of pressure ratio is difficult to realize, therefore adopts free diffusion burner.Under the effect of burner 12, heating gas sprays in the stove, burn while mixing with air in the burner hearth 11, after the sufficient heat exchange, flue gas is again through economizer 13, air preheater 14 multistage utilizations, under the effect of flue gas recirculation pump 15, be partly refluxed to gas generator 3 reducing zones then, the residue flue gas is through smoke stack emission.
As above can better realize the utility model, the utility model can be widely used in boiler energy-saving emission-reduction and transform the field.
Claims (7)
1. stokehold system gas boiler system, comprise gas fired-boiler (10), it is characterized in that also comprising gazogene (2), dust arrester (6) and flue gas recirculation use device, described gas fired-boiler (10) comprises burner (12) and burner hearth (11), the gas exit of gazogene (2) is connected with dust arrester (6), and dust arrester (6) is connected with the burner (12) that burner hearth (11) is located again; The exhanst gas outlet of burner hearth (11) is connected to the reducing zone of gazogene (2) again by the flue gas recirculation use device.
2. system gas boiler in stokehold according to claim 1 system, it is characterized in that described gas fired-boiler (10) also comprises economizer (13) and air preheater (14), deliver to the reducing zone of gazogene (2) behind flue gas process economizer (13) in the burner hearth (11) and the air preheater (14) again through the flue gas recirculation use device.
3. system gas boiler in stokehold according to claim 1 system, it is characterized in that described gazogene (2) comprises gas generator (3) and advances device for coal (5), enter the top that device for coal is positioned at gas generator (3), material (16) is ash bed, oxide layer, reducing zone, destructive distillation layer, drying layer and dead level from bottom to top in gas generator (3) stove.
4. system gas boiler in stokehold according to claim 3 system is characterized in that described flue gas recirculation use device is flue gas recirculation pump (15), and it is partly refluxed to gas fired-boiler (10) flue gas the reducing zone of gas generator (3).
5. system gas boiler in stokehold according to claim 3 system is characterized in that described gas generator (3) all is connected with blast pipe with the bottom air inlet mouth of gas fired-boiler (10).
6. system gas boiler in stokehold according to claim 1 system, it is characterized in that described dust arrester (6) comprises bell jar safety (7), deduster (8) and the Safety water seal (9) that connects successively from top to bottom, the air inlet of deduster (8) is connected with the gas exit of gazogene (2), and the gas outlet of deduster (8) is connected with burner (12) by Safety water seal (9).
7. according to each described stokehold system gas boiler system of claim 3～5, it is characterized in that: gas generator (3) shoulder is provided with exhaust-valve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205680348U CN201964394U (en) | 2010-10-19 | 2010-10-19 | Boiler-front gas making boiler system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205680348U CN201964394U (en) | 2010-10-19 | 2010-10-19 | Boiler-front gas making boiler system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201964394U true CN201964394U (en) | 2011-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205680348U Expired - Fee Related CN201964394U (en) | 2010-10-19 | 2010-10-19 | Boiler-front gas making boiler system |
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| CN (1) | CN201964394U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104625038A (en) * | 2015-02-06 | 2015-05-20 | 边仁杰 | Charcoal-burning tank roasting device |
| CN108534175A (en) * | 2018-06-11 | 2018-09-14 | 大唐环境产业集团股份有限公司 | A kind of coal-burning boiler plasma gasification ignition smooth combustion apparatus and method |
-
2010
- 2010-10-19 CN CN2010205680348U patent/CN201964394U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104625038A (en) * | 2015-02-06 | 2015-05-20 | 边仁杰 | Charcoal-burning tank roasting device |
| CN108534175A (en) * | 2018-06-11 | 2018-09-14 | 大唐环境产业集团股份有限公司 | A kind of coal-burning boiler plasma gasification ignition smooth combustion apparatus and method |
| CN108534175B (en) * | 2018-06-11 | 2023-10-10 | 大唐环境产业集团股份有限公司 | Plasma gasification ignition stable combustion device and method for coal-fired boiler |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110907 Termination date: 20141019 |
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| EXPY | Termination of patent right or utility model |