CN102728178B - Active coke regeneration heating system in active coke boiler flue gas desulfurization system - Google Patents
Active coke regeneration heating system in active coke boiler flue gas desulfurization system Download PDFInfo
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- CN102728178B CN102728178B CN201110088619.9A CN201110088619A CN102728178B CN 102728178 B CN102728178 B CN 102728178B CN 201110088619 A CN201110088619 A CN 201110088619A CN 102728178 B CN102728178 B CN 102728178B
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Abstract
The invention provides an active coke regeneration heating system in an active coke boiler flue gas desulfurization system. The active coke regeneration heating system comprises a heating device and a regeneration heater placed in an active coke desulfurization resolution tower. A regeneration heating medium circulation loop is composed of the heating device and the regeneration heater via pipelines. The heating device is a heat exchanger. A flue gas circulation loop is composed of the heat exchanger and a tail flue of the boiler through pipelines. The active coke regeneration heating system employs high temperature furnace smoke of a power generation boiler to replace a light oil flue gas generating furnace or an air electric heater or a coal-burning hot-blast furnace, so the unit energy consumption is saved and the operation cost is reduced. The active coke regeneration heating system is simple in structure, low in operation costs of maintenance and suitable for large-scale popularization.
Description
Technical field
The present invention relates to flue gas pollutant control field, particularly relate to the activated coke regeneration heating system in a kind of flue gas desulfurization system of activated coke boiler.
Background technology
Activated coke desulfurization technique is a kind of significant flue gas desulfurization technique of water-saving result, because of its can recovered flue gas in SO
2and water consumption is lower, thereby have broad application prospects in the fired power generating unit in water shortage in north china area.Activated coke desulfurization technique is mainly the SO utilizing with in the activated coke absorption flue gas of hole
2, adsorb after saturated activated coke heats by heating system and discharge SO
2, after activity recovery, reuse.Wherein, the heating of activated coke mainly completes in active coke desulphurizing Analytic Tower.At present, in order to heat the activated coke regeneration heating system of the activated coke in active coke desulphurizing Analytic Tower, have three kinds, details is as follows:
One, light oil fume generating furnace activated coke regeneration heating system
As shown in Figure 1, on the back-end ductwork 11 of boiler 1, air preheater 2 is installed.The outlet of air preheater 2 connects deduster 3, air-introduced machine 14, active coke desulphurizing adsorption tower 4 and chimney 5 successively by flue.Active coke desulphurizing adsorption tower 4 is connected by pipeline with active coke desulphurizing Analytic Tower 6, forms the closed circuit of activated coke.Light oil fume generating furnace activated coke regeneration heating system mainly consists of light oil fume generating furnace 15 and regenerative heater 7, recirculation blower 8.7 pairs of activated coke of regenerative heater that the hot flue gas wherein producing at light oil fume generating furnace 15 enters in Analytic Tower heat, by the rich SO in activated coke
2gas parses, and the flue gas after cooling boosts to turn back in fume generating furnace by recirculation blower 8 and again heats, so iterative cycles.
The shortcoming of light oil fume generating furnace activated coke regenerative system is that system equipment is many, system complex, and system operation consumes a large amount of light oil.
Two, electric airheater activated coke regeneration heating system
As shown in Figure 2, electric airheater activated coke regeneration heating system is comprised of electric airheater 12, regenerative heater 7, recirculation blower 8.In electric airheater 12, by electrothermal tube, heated, 7 pairs of activated coke of regenerative heater that the hot blast after heating enters in Analytic Tower heat, by the rich SO in activated coke
2gas parses, and the cold wind after cooling boosts to turn back in electric airheater by recirculation blower 8 and again heats, so iterative cycles.
Electric airheater activated coke regeneration heating system shortcoming is because adopt electric heater, thereby consumes power is more.
Three, coal-fired hot-blast stove activated coke regeneration heating system
As shown in Figure 3, coal-fired hot-blast stove activated coke regeneration heating system is comprised of with recirculation blower 8 coal-fired hot-blast stove 13, regenerative heater 7.The hot blast wherein producing in coal-fired hot-blast stove 13 enters the regenerative heater 7 in Analytic Tower, activated coke is heated, by the rich SO in activated coke
2gas parses, and the air after cooling boosts to turn back in coal-fired hot-blast stove by recirculation blower 8 and again heats, so iterative cycles.
The shortcoming of coal-fired hot-blast stove activated coke regeneration heating system is system complex, need to use a large amount of coals and carry out activated coke regeneration in generator set desulfurization, and the pollutant of coal-fired hot-blast stove discharge is still needed and processed.
In sum, said heating system all needs to expend mass energy, economic not environmental protection, also likely brings new smoke pollution, complex structure simultaneously, and the operation cost of maintenance is higher.
Summary of the invention
The technical problem to be solved in the present invention is to provide the activated coke regeneration heating system in a kind of flue gas desulfurization system of activated coke boiler of simple in structure and energy-conserving and environment-protective.
Activated coke regeneration heating system in a kind of flue gas desulfurization system of activated coke boiler, comprise heater, be placed in the regenerative heater in active coke desulphurizing Analytic Tower, described heater and described regenerative heater consist of the loop of regeneration heat medium circulation pipeline, described heater is heat exchanger, and the back-end ductwork of described heat exchanger and described boiler consists of the loop of flue gas recirculation pipeline.
Activated coke regeneration heating system in flue gas desulfurization system of activated coke boiler of the present invention, wherein, the import of described heat exchanger connects described back-end ductwork by the first pipeline, the outlet of described heat exchanger connects described back-end ductwork by second pipe, regeneration heat medium outlet in described heat exchanger connects described regenerative heater by the 3rd pipeline, and described regenerative heater connects the regeneration heat medium import in described heat exchanger by the 4th pipeline.
Activated coke regeneration heating system in flue gas desulfurization system of activated coke boiler of the present invention, wherein, is provided with stove cigarette blower fan on described second pipe.
Activated coke regeneration heating system in flue gas desulfurization system of activated coke boiler of the present invention, wherein, is provided with recirculation blower on described the 4th pipeline.
Activated coke regeneration heating system in flue gas desulfurization system of activated coke boiler of the present invention, wherein, the regeneration heat medium in described heat exchanger is nitrogen.
The present invention adopts the high-temperature flue gas of electricity generation boiler self to substitute light oil fume generating furnace or electric airheater or coal-fired hot-blast stove, and the energy consumption that can save unit, has reduced operating cost.Activated coke regeneration heating system of the present invention is simple in structure, and the operation cost of maintenance is lower.Be suitable for promoting on a large scale.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that the activated coke desulfurization system of prior art light oil fume generating furnace activated coke regeneration heating system is installed;
Fig. 2 is the schematic diagram that the activated coke desulfurization system of prior art electric airheater activated coke regeneration heating system is installed;
Fig. 3 is the schematic diagram that the activated coke desulfurization system of prior art coal-fired hot-blast stove activated coke regeneration heating system is installed;
Fig. 4 is the schematic diagram that the activated coke desulfurization system of activated coke regeneration heating system of the present invention is installed.
The specific embodiment
For making technical solution of the present invention clearer, below in conjunction with accompanying drawing, concrete enforcement is described in detail.
As shown in Figure 4, adopt in the activated coke desulfurization system of activated coke regeneration heating system of the present invention, on the back-end ductwork 11 of boiler 1, air preheater 2 is installed, the outlet of air preheater 2 connects deduster 3, air-introduced machine 14, active coke desulphurizing adsorption tower 4 and chimney 5 successively by flue.Active coke desulphurizing adsorption tower 4 becomes the closed circuit of activated coke by pipeline group with active coke desulphurizing Analytic Tower 6.
Activated coke regeneration heating system of the present invention, comprises heater, is placed in the regenerative heater 7 in active coke desulphurizing Analytic Tower 6, and heater and regenerative heater 7 consist of the loop of regeneration heat medium circulation pipeline, and heater is heat exchanger 9.Heat exchanger 9 consists of the loop of flue gas recirculation with the back-end ductwork 11 of boiler 1 pipeline.The import of heat exchanger 9 connects back-end ductwork 11 by the first pipeline 21 at the first tie point 31, and the outlet of heat exchanger 9 connects back-end ductwork 11 by second pipe 22 at the second tie point 32.Wherein, the first tie point 31 is between the second tie point 32 and boiler 1.Stove cigarette blower fan 10 is installed on second pipe 22.Heat exchanger 9 consists of the loop of regeneration heat medium circulation pipeline with regenerative heater 7.Regeneration heat medium outlet in heat exchanger 9 is connected and is placed in the regenerative heater 7 in active coke desulphurizing Analytic Tower 6 by the 3rd pipeline 23, the regeneration heat medium import that regenerative heater 7 connects in heat exchanger 9 by the 4th pipeline 24.
Activated coke regeneration heating system of the present invention, also comprises recirculation blower 8.On the 4th pipeline 24, recirculation blower 8 is installed.
The heat medium of regenerating is in the present embodiment nitrogen.
When activated coke desulfurization system works, the flue gas producing in boiler 1 enters active coke desulphurizing adsorption tower 4 by back-end ductwork 11, the SO in flue gas
2by the activated coke in active coke desulphurizing adsorption tower 4, adsorbed, the flue gas being purified is discharged by chimney 5.Absorption has SO
2activated coke by pipeline, enter active coke desulphurizing Analytic Tower 6.
Meanwhile, under the effect of stove cigarette blower fan 10, the part high-temperature flue gas in back-end ductwork 11 enters in heat exchanger 9 by the first pipeline 21, carries out, after heat exchange, by second pipe 22, flowing back in back-end ductwork 11 with the regeneration heat medium in heat exchanger 9.Be heated to the regeneration heat medium requiring after temperature and by the 3rd pipeline 23, enter in the regenerative heater 7 in active coke desulphurizing Analytic Tower 6, activated coke is heated, make the SO adsorbing in activated coke
2gas parses, and the regeneration heat medium after cooling turns back in heat exchanger 9 and again heats after boosting by recirculation blower 8, so iterative cycles.
The present invention adopts the high-temperature flue gas of electricity generation boiler self to substitute light oil fume generating furnace or electric airheater or coal-fired hot-blast stove, and the energy consumption that can save unit, has reduced operating cost.Activated coke regeneration heating system of the present invention is simple in structure, and the operation cost of maintenance is lower.
The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvement, and these improvement also should be considered as protection scope of the present invention.
Claims (2)
1. the activated coke regeneration heating system in a flue gas desulfurization system of activated coke boiler, comprise heater, be placed in the regenerative heater (7) in active coke desulphurizing Analytic Tower (6), described heater and described regenerative heater (7) consist of the loop of regeneration heat medium circulation pipeline, it is characterized in that, described heater is heat exchanger (9), described heat exchanger (9) consists of the loop of flue gas recirculation with the back-end ductwork (11) of described boiler pipeline, the import of described heat exchanger (9) connects described back-end ductwork (11) by the first pipeline (21), the outlet of described heat exchanger (9) connects described back-end ductwork (11) by second pipe (22), regeneration heat medium outlet in described heat exchanger (9) connects described regenerative heater (7) by the 3rd pipeline (23), described regenerative heater (7) connects the regeneration heat medium import in described heat exchanger (9) by the 4th pipeline (24), stove cigarette blower fan (10) is installed on described second pipe (22), on described the 4th pipeline (24), recirculation blower (8) is installed.
2. the activated coke regeneration heating system in flue gas desulfurization system of activated coke boiler according to claim 1, is characterized in that, the regeneration heat medium in described heat exchanger (9) is nitrogen.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110088619.9A CN102728178B (en) | 2011-04-08 | 2011-04-08 | Active coke regeneration heating system in active coke boiler flue gas desulfurization system |
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| CN201110088619.9A CN102728178B (en) | 2011-04-08 | 2011-04-08 | Active coke regeneration heating system in active coke boiler flue gas desulfurization system |
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| CN102728178A CN102728178A (en) | 2012-10-17 |
| CN102728178B true CN102728178B (en) | 2014-08-20 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728178B (en) * | 2011-04-08 | 2014-08-20 | 中国电力工程顾问集团公司 | Active coke regeneration heating system in active coke boiler flue gas desulfurization system |
| CN103521200B (en) * | 2013-09-03 | 2015-08-12 | 香港诺曼泰壹环保科技有限公司 | The reclaim equiment of active carbon |
| CN106237845A (en) * | 2016-08-30 | 2016-12-21 | 中冶华天工程技术有限公司 | The method of the desulphurization denitration of flue gases of cock oven |
| CN108554396B (en) * | 2018-05-29 | 2020-10-27 | 杭州回水科技股份有限公司 | Quick heat abstractor of active burnt regenerating unit of granule |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60106532A (en) * | 1983-11-15 | 1985-06-12 | Showa Denko Kk | Regeneration of adsorbent for boron trichloride |
| JPH01201017A (en) * | 1988-02-05 | 1989-08-14 | Nippon Steel Corp | Recovery of byproduct gas generated in ironworks |
| CN102728178A (en) * | 2011-04-08 | 2012-10-17 | 中国电力工程顾问集团公司 | Active coke regeneration heating system in active coke boiler flue gas desulfurization system |
-
2011
- 2011-04-08 CN CN201110088619.9A patent/CN102728178B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60106532A (en) * | 1983-11-15 | 1985-06-12 | Showa Denko Kk | Regeneration of adsorbent for boron trichloride |
| JPH01201017A (en) * | 1988-02-05 | 1989-08-14 | Nippon Steel Corp | Recovery of byproduct gas generated in ironworks |
| CN102728178A (en) * | 2011-04-08 | 2012-10-17 | 中国电力工程顾问集团公司 | Active coke regeneration heating system in active coke boiler flue gas desulfurization system |
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| CN102728178A (en) | 2012-10-17 |
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Effective date of registration: 20141212 Address after: 100120 Beijing city Xicheng District No. 65 Andrew Patentee after: China Power Engineering Consulting Group Corporation Patentee after: ELECTRIC POWER PLANNING & ENGINEERING INSTITUTE Address before: 100120 Beijing city Xicheng District No. 65 Andrew Patentee before: China Power Engineering Consulting Group Corporation |
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Address after: 100120 Beijing city Xicheng District No. 65 Andrew Patentee after: CHINA POWER ENGINEERING CONSULTING (GROUP) CORPORATION Patentee after: ELECTRIC POWER PLANNING & ENGINEERING INSTITUTE Address before: 100120 Beijing city Xicheng District No. 65 Andrew Patentee before: China Power Engineering Consulting Group Corporation Patentee before: ELECTRIC POWER PLANNING & ENGINEERING INSTITUTE |