CN201276531Y - Boiler side-arranged gas producer plant for large and middle sized circulating fluid bed boiler - Google Patents
Boiler side-arranged gas producer plant for large and middle sized circulating fluid bed boiler Download PDFInfo
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- CN201276531Y CN201276531Y CNU2008201226005U CN200820122600U CN201276531Y CN 201276531 Y CN201276531 Y CN 201276531Y CN U2008201226005 U CNU2008201226005 U CN U2008201226005U CN 200820122600 U CN200820122600 U CN 200820122600U CN 201276531 Y CN201276531 Y CN 201276531Y
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- boiler
- separator
- returning charge
- grey
- thermal cracker
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Abstract
The utility model provides a boiler side gasogene used for a large and medium-size circulating fluidized bed boiler, comprising a boiler separator and a thermal cracking device which are connected with the circulating fluidized bed boiler; a furnace of the boiler is adjacent to the tail of the boiler; the device also comprises a crude gas separator which is arranged below the boiler separator with the same number of the boiler separator, a part fluidized device and a dust return conveyor; the number of the boiler separator is even above two and the boiler separator is arranged at both sides of the furnace. The utility model can be matched with the large circulating fluidized bed boiler at 240t/h and above, thus meeting the market requirement. The device can be used in the cogeneration project of heat, electricity and coal gas, leading the yield of heat, electricity and coal gas to be increased by the same proportion of the boiler tonnage increasing; in addition, owing to the scale effect of the cogeneration project, the unit investment and unit production cost can be reduced; meanwhile, the large scale of the cogeneration project has better effects of energy saving and pollutant reduction.
Description
Technical field
The utility model relates to the boiler side gazogene that is used for electricity, heat and coal gas three coproduction, be particularly related to a kind of boiler side gazogene that is used for big-and-middle-sized circular fluid bed, refer in particular to 240t/h level and the above supporting boiler side gazogene of large circulating fluidized bed boiler.
Background technology
The heat, electricity, the coal gas three coproduction engineerings that are used for big and medium-sized cities the output of its heating power, electric power and coal gas is increased on year-on-year basis by the increase of boiler tonnage, and the effects of energy saving and emission reduction of extensive three coproduction engineerings can be better.Based on this, our company has declared " technology and equipment that the preposition coal gas of boiler takes place " patent of invention and has patented, and the patent No. of this invention is: ZL94119045.5.This summary of the invention is: the technology that is used for the preposition coal gas generation of boiler of electricity, heat and coal gas three coproduction, coal and heat ash be blended in the thermal cracker coal gas fluidizer and epicoele carries out, the thermo-cracking of coal and heat ash is carried out at its cavity of resorption, discharges after reaching discharge earlier of first hot lysate and back hot lysate.Its equipment mainly comprises circular fluid bed, thermal cracker, divider, coal gas fluidizer and automatic control system etc.It is abundant that this invention can make coal and hot ash mix with thermo-cracking, improved gas yield and steady quality; Coal suitability broadness; Free from environmental pollution; Monitor and control with computer, realize the advantage of Automation of Manufacturing Process.
In addition, technology in our company utilization foregoing invention patent has carried out succeeing with the type approval test of the supporting gazogene of the circular fluid bed of 75t/h level, and has passed through the appraisal of scientific and technological achievements (No. the 064th, the section's of building mirror word (2001)) of nation-building portion tissue December calendar year 2001.
Because there is the trend to large scale development in circular fluid bed at present, and the domestic preposition gazogene of boiler existing and that circular fluid bed is supporting is generally 75t/t level and 130t/h level, lack other corollary apparatus of 240t/h level and higher level, thereby can not satisfy the market demand that three coproduction engineerings enlarge scale.
Summary of the invention
The purpose of this utility model is the defective at above-mentioned prior art, a kind of boiler side gazogene that is used for big-and-middle-sized circular fluid bed is provided, can be supporting with the large circulating fluidized bed boiler of 240t/h level (more than reaching), satisfy market demand.
The technical scheme taked of the utility model is to achieve these goals: a kind of boiler side gazogene that is used for big-and-middle-sized circular fluid bed, comprise the boiler separator and the thermal cracker that link to each other with circular fluid bed, the burner hearth of described boiler and boiler tail next-door neighbour, described device also comprises to be located at boiler separator below and raw gas separator, the local fluidization device consistent with its quantity and to return grey transfer roller, and the quantity of described boiler separator is plural even number and the both sides that are distributed in described burner hearth; Wherein, the hot exhanst gas outlet in the top of described each boiler separator connects described boiler tail, the hot gas approach in top connects described burner hearth, bottom cycle heat ash outlet is connected to thermal cracker separately and is connected to described burner hearth through boiler returning charge valve through the grey feed valve of heat respectively, the top of described thermal cracker is connected to the raw gas separator by pipeline, the bottom is connected to described burner hearth by the returning charge valve, that end parallel connection that described returning charge valve and boiler returning charge valve link to each other with burner hearth, the bottom of raw gas separator links to each other with described thermal cracker by returning grey transfer roller, hot grey feed valve and return that corresponding described thermal cracker inside is provided with the local fluidization device between the grey transfer roller.In boiler when work,, the hot flue gas of burner hearth output enters the separator of both sides from roof of the furnace, enters boiler tail through the separator top exit through the female pipe of flue gas again.Cycling hot ash under separator separates enters the returning charge valve by revert pipe and sends into burner hearth again.The thermal cracker of described gazogene is arranged in the below of boiler separator, and the quantity of thermal cracker is consistent with the quantity of boiler separator.The benefit of Bu Zhiing is like this: there is bigger space the boiler both sides, help the reasonable Arrangement of thermal cracker and guarantee its due volume; In addition, owing to the quantity of thermal cracker is consistent with boiler separator, can make cycling hot ash passage and material returning valve between boiler separator and the thermal cracker arrange compact, distance weak point; Simultaneously, the semicoke of thermal cracker discharge and the bed that hot ash can be distributed to boiler furnace more equably by a plurality of feedback outlets have also been guaranteed.
In order to regulate the ratio enter thermal cracker and directly to enter boiler furnace returning charge ash as requested, be provided with returning charge ash distribution valve between the bottom of described each boiler separator and coupled hot grey feed valve and the boiler returning charge valve.
In order directly heat ash and semicoke to be sent into boiler furnace, the returning charge valve of the bottom of described thermal cracker is heat ash and semicoke returning charge valve.
Describedly return grey transfer roller for returning grey worm conveyor.
The quantity of described boiler separator is four.
The beneficial effects of the utility model are: compared to existing technology, the utility model can be supporting with 240t/h level and above large circulating fluidized bed boiler, satisfied market demands.This device can be used for heat, electricity, the coal gas three coproduction engineerings of big and medium-sized cities, the output of its heating power, electric power and coal gas can be increased on year-on-year basis by the increase of boiler tonnage, and because the scale effect of three coproduction engineerings makes the unit investment quotas and the unit cost of production all can descend; Simultaneously, extensive three coproduction engineerings have better effects of energy saving and emission reduction.
Description of drawings
Fig. 1 is the front view of boiler side gazogene described in the utility model;
Fig. 2 is that the A of Fig. 1 is to view.
Among the figure: 1 burner hearth, 2 hot ashes and semicoke returning charge valve, 3 boiler returning charge valves, 4 thermal crackers, 5 local fluidization devices, 6 return grey worm conveyor, 7 hot grey feed valves, 8 raw gas separators, 9 outlets, 10 returning charges ash distribution valve, 11 boiler separators, 12 boiler tails, the female pipe of 13 flue gases.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments, but not as to qualification of the present utility model.
A kind of boiler side gazogene that is used for big-and-middle-sized circular fluid bed shown in Fig. 1-2, the burner hearth 1 of described boiler and boiler tail 12 next-door neighbours, comprise the boiler separator 11, the thermal cracker 4 that link to each other with circular fluid bed, and be located at separator 11 belows and raw gas separator 8, the local fluidization device 5 consistent and return grey transfer roller with its quantity.Return grey transfer roller for returning grey worm conveyor 6.The quantity of described boiler separator 11 is two and plural even number, is arranged in burner hearth 1 both sides of described boiler.
Adopt four boiler separators 11 in this example, the hot exhanst gas outlet in the top of described each separator 11 connects described boiler tail 12, the hot gas approach in top and connects described burner hearth 1, the outlet of the bottom cycle heat ash returning charge ash distribution valve 10 by separately and be connected to thermal cracker 4 separately and be connected to described burner hearth 1 through boiler returning charge valve 3 through the grey feed valve 7 of heat respectively.In order to regulate the ratio that enters thermal cracker 4 and directly enter boiler furnace 1 returning charge ash as requested, be provided with returning charge ash distribution valve 10 between the bottom of described each separator 11 and coupled hot grey feed valve 7 and the boiler returning charge valve 3.
The top of described thermal cracker 4 by pipeline be connected to raw gas separator 8, the bottom is connected to described burner hearth 1 by the returning charge valve.In order directly heat ash and semicoke to be sent into boiler furnace 1, the returning charge valve of the bottom of described thermal cracker 4 is heat ash and semicoke returning charge valve 2.
That end parallel connection that described heat ash and semicoke returning charge valve 2 and boiler returning charge valve 3 link to each other with described burner hearth 1, the bottom of raw gas separator 8 links to each other with described thermal cracker 4 by returning grey worm conveyor 6, hot grey feed valve 7 and return that corresponding described thermal cracker 4 inside are provided with local fluidization device 5 between the grey worm conveyor 6.
Principle of work of the present utility model: shown in Fig. 1-2,1 two of boiler furnaces are respectively arranged two separators 11.During boiler operatiopn, the hot ash that high-temperature flue gas is carried secretly with it enters boiler separator 11, and the high-temperature flue gas after the separation is discharged by separator outlet 9 and entered boiler tail 12 through the female pipe 13 of flue gas; Hot ash under separating enters the returning charge ash distribution valve 10 that boiler separator 11 bottoms connect, and this valve can be distributed to the circulation returning charge ash of boiler the hot grey feed valve 7 and the boiler returning charge valve 3 of thermal cracker 4 by a certain percentage.Measure by regulating returning charge ash distribution valve 10, can control the circulation returning charge ash that enters thermal cracker 4, and then control the temperature of bed in the thermal cracker 4, to satisfy the demand of different thermal cracking process.When thermal cracker 4 needs are out of service, can regulate returning charge ash distribution valve 10 and make the cycling hot ash all enter boiler returning charge valve 3.Like this, can guarantee when thermal cracker 4 quits work that boiler also can works better.
The effect of the fluidisation coal gas that the local fluidization device 5 that the circulation returning charge ash that enters thermal cracker 4 and destructive distillation coal are installed in the chamber thereon blows out forms the bubbling bed down, makes circulation returning charge ash and even blending of destructive distillation coal and fast pyrogenation.
Evenly the circulation returning charge ash after the blending moves down with the destructive distillation coal, enters into the mobile bed of the cavity of resorption of thermal cracker 4, and the destructive distillation coal continues pyrolysis and becomes semicoke, until the heat ash and the semicoke returning charge valve 2 that enter into thermal cracker 4 lower ends.Heat ash and semicoke directly enter into boiler furnace 1 through heat ash and semicoke returning charge valve 2.
Output object after the pyrolysis (coal gas and tar) enters raw gas separator 8 from thermal cracker 4 tops, and the ash under separating from raw gas separator 8 sends back to thermal cracker 4 through returning grey worm conveyor 6; Pyrolysis output object after the separation is discharged through the outlet 9 of raw gas separator 8, enters into gas cleaning system.
The utility model can be supporting with 240t/h level and above large circulating fluidized bed boiler, satisfied market demands.This device can be used for heat, electricity, the coal gas three coproduction engineerings of big and medium-sized cities, the output of its heating power, electric power and coal gas can be increased on year-on-year basis by the increase of boiler tonnage, and because the scale effect of three coproduction engineerings makes the unit investment quotas and the unit cost of production all can descend; Simultaneously, extensive three coproduction engineerings have better effects of energy saving and emission reduction.
Above-described embodiment, the utility model embodiment a kind of more preferably just, the common variation that those skilled in the art carries out in the technical solutions of the utility model scope and replacing all should be included in the protection domain of the present utility model.
Claims (5)
1. boiler side gazogene that is used for big-and-middle-sized circular fluid bed, comprise the boiler separator and the thermal cracker that link to each other with circular fluid bed, it is characterized in that: the burner hearth of described boiler and boiler tail next-door neighbour, described device also comprises to be located at boiler separator below and raw gas separator, the local fluidization device consistent with its quantity and to return grey transfer roller, and the quantity of described boiler separator is plural even number and the both sides that are distributed in described burner hearth; Wherein, the hot exhanst gas outlet in the top of described each boiler separator connects described boiler tail, the hot gas approach in top connects described burner hearth, bottom cycle heat ash outlet is connected to thermal cracker separately and is connected to described burner hearth through boiler returning charge valve through the grey feed valve of heat respectively, the top of described thermal cracker is connected to the raw gas separator by pipeline, the bottom is connected to described burner hearth by the returning charge valve, that end parallel connection that described returning charge valve and boiler returning charge valve link to each other with burner hearth, the bottom of raw gas separator links to each other with described thermal cracker by returning grey transfer roller, hot grey feed valve and return that corresponding described thermal cracker inside is provided with the local fluidization device between the grey transfer roller.
2. boiler side gazogene according to claim 1 is characterized in that: be provided with returning charge ash distribution valve between the bottom of described each boiler separator and coupled hot grey feed valve and the boiler returning charge valve.
3. boiler side gazogene according to claim 1 is characterized in that: the returning charge valve of the bottom of described thermal cracker is heat ash and semicoke returning charge valve.
4. boiler side gazogene according to claim 1 is characterized in that: describedly return grey transfer roller for returning grey worm conveyor.
5. according to the preposition gazogene of the described boiler of the arbitrary claim of claim 1-4, it is characterized in that: the quantity of described boiler separator is four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201226005U CN201276531Y (en) | 2008-09-24 | 2008-09-24 | Boiler side-arranged gas producer plant for large and middle sized circulating fluid bed boiler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201226005U CN201276531Y (en) | 2008-09-24 | 2008-09-24 | Boiler side-arranged gas producer plant for large and middle sized circulating fluid bed boiler |
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| CN201276531Y true CN201276531Y (en) | 2009-07-22 |
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| CNU2008201226005U Expired - Lifetime CN201276531Y (en) | 2008-09-24 | 2008-09-24 | Boiler side-arranged gas producer plant for large and middle sized circulating fluid bed boiler |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012103790A1 (en) * | 2011-02-01 | 2012-08-09 | 中国科学院工程热物理研究所 | Large-scale circulating fluidized bed boiler |
| CN104131158A (en) * | 2014-07-18 | 2014-11-05 | 黄石市新瑞环保科技有限公司 | Laminated circulating fluidized bed gasification-magnetization baking device and baking process |
| CN105087025A (en) * | 2015-09-09 | 2015-11-25 | 中国华能集团清洁能源技术研究院有限公司 | Moving bed coal pyrolysis based polygeneration device and method |
| CN105698164A (en) * | 2016-04-06 | 2016-06-22 | 东方电气集团东方锅炉股份有限公司 | Material circulation system of circulating fluidized bed |
| WO2017174865A1 (en) * | 2016-04-04 | 2017-10-12 | Amec Foster Wheeler Energia Oy | A circulating fluidized bed boiler and a method for assembling a circulating fluidized bed boiler |
-
2008
- 2008-09-24 CN CNU2008201226005U patent/CN201276531Y/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012103790A1 (en) * | 2011-02-01 | 2012-08-09 | 中国科学院工程热物理研究所 | Large-scale circulating fluidized bed boiler |
| CN104131158A (en) * | 2014-07-18 | 2014-11-05 | 黄石市新瑞环保科技有限公司 | Laminated circulating fluidized bed gasification-magnetization baking device and baking process |
| CN105087025A (en) * | 2015-09-09 | 2015-11-25 | 中国华能集团清洁能源技术研究院有限公司 | Moving bed coal pyrolysis based polygeneration device and method |
| WO2017174865A1 (en) * | 2016-04-04 | 2017-10-12 | Amec Foster Wheeler Energia Oy | A circulating fluidized bed boiler and a method for assembling a circulating fluidized bed boiler |
| KR20180017051A (en) * | 2016-04-04 | 2018-02-20 | 스미토모 에스에이치아이 에프더블유 에너지아 오와이 | A circulating fluidized bed boiler and a method for assembling a circulating fluidized bed boiler |
| CN107949747A (en) * | 2016-04-04 | 2018-04-20 | 住友重工福威能源有限公司 | Circulating fluidized bed boiler and the method for assembled circulating fluidized bed boiler |
| JP2018519494A (en) * | 2016-04-04 | 2018-07-19 | スミトモ エスエイチアイ エフダブリュー エナージア オサケ ユキチュア | Circulating fluidized bed boiler and method for assembling a circulating fluidized bed boiler |
| KR101896861B1 (en) | 2016-04-04 | 2018-09-07 | 스미토모 에스에이치아이 에프더블유 에너지아 오와이 | A circulating fluidized bed boiler and a method for assembling a circulating fluidized bed boiler |
| RU2669091C1 (en) * | 2016-04-04 | 2018-10-08 | СУМИТОМО ЭсЭйчАй ФВ ЭНЕРДЖИА ОЙ | Boiler with circulating fluidized bed and method of mounting thereof |
| CN107949747B (en) * | 2016-04-04 | 2019-07-23 | 住友重工福威能源有限公司 | Circulating fluidized bed boiler and method for assembled circulating fluidized bed boiler |
| US10502413B2 (en) | 2016-04-04 | 2019-12-10 | Sumitomo SHI FW Energia Oy | Circulating fluidized bed boiler and a method of assembling a circulating fluidized bed boiler |
| CN105698164A (en) * | 2016-04-06 | 2016-06-22 | 东方电气集团东方锅炉股份有限公司 | Material circulation system of circulating fluidized bed |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Boiler side-arranged gas producer plant for large and middle sized circulating fluid bed boiler Effective date of registration: 20151221 Granted publication date: 20090722 Pledgee: Beijing Huafu Shenwu Industrial Furnace Co., Ltd. Pledgor: BEIJING LANTIAN LIYUAN SCIENCE AND TECHNOLOGY CO., LTD. Registration number: 2015990001136 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
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Granted publication date: 20090722 |
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| CX01 | Expiry of patent term |