CN103216937B - The circulation fluidized bed organic heat-carrying agent stove of a kind of deep fat and steam coproduction - Google Patents
The circulation fluidized bed organic heat-carrying agent stove of a kind of deep fat and steam coproduction Download PDFInfo
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- CN103216937B CN103216937B CN201310116093.XA CN201310116093A CN103216937B CN 103216937 B CN103216937 B CN 103216937B CN 201310116093 A CN201310116093 A CN 201310116093A CN 103216937 B CN103216937 B CN 103216937B
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- Prior art keywords
- conduction oil
- steam
- heating surface
- heating
- water side
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
- F23C10/22—Fuel feeders specially adapted for fluidised bed combustion apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B33/00—Steam-generation plants, e.g. comprising steam boilers of different types in mutual association
- F22B33/02—Combinations of boilers having a single combustion apparatus in common
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
- F24H1/14—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
- F24H1/16—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form helically or spirally coiled
- F24H1/167—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form helically or spirally coiled using solid fuel
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
- Air Supply (AREA)
Abstract
The circulation fluidized bed organic heat-carrying agent stove of a kind of deep fat and steam coproduction, for realizing the heat utilization system of low-voltage high-temperature, comprise coal feeder, burning bed, heating surface, water side drum, separator, feeding back device, water side economizer, air preheater, ash dropped unit, sack cleaner, air-introduced machine and chimney.Fuel releases heat in adiabatic combustion bed combustion, high-temperature flue gas is by conduction oil radiation heating-surface and steam roof tube heating surface, carry out entering back-end ductwork after flue dust separation through separator, successively by conduction oil radiation heating-surface, conduction oil convection heating surface, steam convection heating surface, water side economizer, air preheater, enter smoke processing system.Fuel tolerance of the present invention is wide, pretreatment system is simple, and take full advantage of the flue gas that temperature that conventional heat-conduction oil fire grate goes out is higher, overall efficiency is higher, and byproduct steam, can be widely used in various fields simultaneously.
Description
Technical field
The present invention relates to the heat-exchange system of a kind of deep fat and steam coproduction, is CFBC heat-conducting oil furnace, belongs to using energy source Apparatus and method for and improves field.
Background technology
The principle of heat-conducting oil furnace is heated by organic carrier (conduction oil), and carry out liquid phase circulation by high temperature oil pump the conduction oil after heating is transported to heating equipment, then get back to heat-conducting oil furnace by heating equipment oil-out and heat, and forms a complete heat circulating system.
Mostly the coal-fired thermal oil furnace of current use is grate furnace or coal-powder boiler, and grate furnace efficiency is relatively low, and coal adaptability is poor.Fuel pulverized coal preparation needed for coal-powder boiler is complicated, is not suitable for middle-size and small-size equipment.Recently someone continues to use existing circulation fluidized-bed combustion boiler technological development circulating fluidized bed combustion coal heat-conducting oil furnace; general circulation fluidized-bed combustion boiler is better than chain furnace and coal-powder boiler; existing circulating fluidized bed combustion coal stove dependence backflow of particles takes the temperature stabilization that emulsion zone burning heat more than needed realizes emulsion zone out of; run more stable than traditional grate furnace and coal-powder boiler, the thermal efficiency also increases.But the heat that existing fluid-bed combustion boiler produces exchanges away with single working medium usually, cause the heat of considerable part to be difficult to make full use of, exist and produce the single problem of heat mode, and overall thermal efficiency needs to be improved further.
Summary of the invention
The object of the present invention is to provide the circulation fluidized bed organic heat-carrying agent stove of deep fat and water vapour coproduction, overcome the shortcoming of existing heat-conducting oil furnace technology, by adopting conduction oil and water two kinds of working medium, and multiple, multistage heating surface is set, in different temperature ranges, different heating surfaces is set, adopt different heat exchange modes, produce deep fat, water vapour simultaneously.
The technical solution used in the present invention is:
The circulation fluidized bed organic heat-carrying agent stove of a kind of deep fat and steam coproduction, comprise coal feeder, burning bed, heating surface, water side drum, separator, feeding back device, back-end ductwork, water side economizer, air preheater and ash dropped unit, it is characterized in that: described burning bed adopts recirculating fluidized bed, the flue gas ascent stage of the burning bed section of standing arranges the first conduction oil radiating surface, back-end ductwork leading portion facade arranges the second conduction oil radiation heating-surface, the leading portion internal placement conduction oil convection heating surface of back-end ductwork; The exhanst gas outlet section on recirculating fluidized bed top arranges steam roof tube heating surface, steam convection heating surface is arranged in back-end ductwork stage casing, high-temperature flue gas passes through the first conduction oil radiation heating-surface and steam roof tube heating surface in burning bed, carry out entering back-end ductwork after flue dust separation through separator, along flue direction successively by the second conduction oil radiation heating-surface, conduction oil convection heating surface, steam convection heating surface, water side economizer and air preheater, finally enter flue gas emission.
In technique scheme, the first described conduction oil radiation heating-surface and the second conduction oil radiation heating-surface 3b adopt spiral fashion oil pipe, and described steam roof tube heating surface adopts water pipe.
The present invention has the following advantages and high-lighting effect: coal adaptability of the present invention is good, by adopting conduction oil and water two kinds of working medium, and multiple, multistage heating surface is set in different temperature ranges and adopts different heat exchange modes, produce deep fat and water vapour simultaneously, significantly improve integrated heat efficiency, have good economic benefit and environmental benefit, application prospect is very wide.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the circulation fluidized bed organic heat-carrying agent stove of a kind of deep fat and the steam coproduction that the present invention relates to.
In figure: 1-coal feeder, 2-burning bed, 3a-first conduction oil radiation heating-surface, 3b-second conduction oil radiation heating-surface, 4a-conduction oil lower header, header in 4b-conduction oil, 4c-conduction oil lower header, 5-steam roof tube heating surface, 6-water side drum, 7-separator, 8-feeding back device, 9-back-end ductwork, 10-conduction oil convection heating surface, 11-steam convection heating surface, 12-water side economizer, 13-air preheater, 14-ash dropped unit, 15-sack cleaner, 16-air-introduced machine, 17-chimney.
Detailed description of the invention
Concrete technology of the present invention and operational process is described in detail below in conjunction with accompanying drawing:
The circulation fluidized bed organic heat-carrying agent stove of a kind of deep fat of the present invention and steam coproduction, main device comprises coal feeder 1, burning bed 2, first conduction oil radiation heating-surface 3a, second conduction oil radiation heating-surface 3b, conduction oil lower header 4a, header 4b in conduction oil, conduction oil upper collecting chamber 4c, steam roof tube heating surface 5, water side drum 6, separator 7, feeding back device 8, back-end ductwork 9, conduction oil convection heating surface 10, steam convection heating surface 11, water side economizer 12, air preheater 13, ash dropped unit 14, sack cleaner 15, air-introduced machine 16 and chimney 17.Described burning bed 2 adopts recirculating fluidized bed, the flue gas ascent stage of burning bed 2 section of standing arranges the first conduction oil radiating surface 3a, back-end ductwork 9 leading portion facade arranges the second conduction oil radiation heating-surface 3b, the leading portion internal placement conduction oil convection heating surface 10 of back-end ductwork 9; The exhanst gas outlet section on recirculating fluidized bed top arranges steam roof tube heating surface 5, and steam convection heating surface 11 is arranged in back-end ductwork stage casing.
The method that organic heat-carrying agent stove belonging to the present invention adopts is: fuel is sent into burning bed 2 through coal feeder 1 and carried out adiabatic combustion, low cost desulfurization is realized by adding lime stone etc., ignition temperature controls to realize low NOx combustion at 850 ~ 900 DEG C, and efficiency of combustion can reach more than 97%.The high-temperature flue gas that burning produces is first by the first conduction oil radiation heating-surface 3a, and organic carrier is drawn by conduction oil header 4 after heating, delivers to heating equipment; The high-temperature flue gas entering furnace roof, by steam roof tube heating surface 5, is inhaled thermogenetic steam and is entered water inlet side drum 6 with the form of steam water interface, draws, be sent to gas utilization unit after carrying out carbonated drink separation through live steam pipe; The high-temperature flue gas of dust-laden is efficiently separated through separator 7, and solid particle returns combustion system through feeding back device 8.Arrange the second conduction oil radiation heating-surface 3b and conduction oil convection heating surface 10 in the high-temperature part of back-end ductwork 9 leading portion, flue stage casing arranges steam convection heating surface 11, and flue back segment arranges water side economizer 12 and air preheater 13.High-temperature flue gas enters back-end ductwork 9 after separator, along flue gas flow direction successively with the second conduction oil radiation heating-surface 3b, conduction oil convection heating surface 10, steam convection heating surface 11, water side economizer 12 and air preheater 13 heat exchange, the heat in flue gas is fully used.The lower end of back-end ductwork 9 all arranges ash dropped unit 14, collects the ash that flue gas deposits.After back-end ductwork heat exchange, high-temperature flue gas becomes low-temperature flue gas, after sack cleaner 15 carries out dedusting, delivers to chimney 17 discharge by air-introduced machine 16.
First conduction oil sends into conduction oil convection heating surface 10 by conduction oil lower header 4a, the deep fat be heated after heating up enters the second conduction oil radiation heating-surface 3b and the first conduction oil radiation heating-surface 3a successively by header 4b in conduction oil, drawn by the conduction oil upper collecting chamber 4c above the first conduction oil radiation heating-surface 3a after further heat temperature raising and deliver to heating equipment, low temperature conduction oil after heat exchange enters conduction oil convection heating surface 10 by conduction oil lower header 4a again, completes and once circulates.Simultaneously, the conduction oil heated up through conduction oil convection heating surface 10 heat exchange also can enter the first conduction oil radiation heating-surface 3a and the second conduction oil radiation heating-surface 3b heat exchange with parallel way simultaneously, conduction oil through heat temperature raising delivers to heating equipment respectively by conduction oil upper collecting chamber 4c extraction, low temperature conduction oil after heat exchange enters conduction oil convection heating surface 10 by conduction oil lower header 4a again, completes and once circulates.
Claims (1)
1. the circulation fluidized bed organic heat-carrying agent stove of a deep fat and steam coproduction, comprise coal feeder (1), burning bed (2), heating surface, water side drum (6), separator (7), feeding back device (8), back-end ductwork (9), water side economizer (12), air preheater (13) and ash dropped unit (14), it is characterized in that: described burning bed (2) adopts recirculating fluidized bed, the flue gas ascent stage of the vertical section of burning bed (2) arranges the first conduction oil radiating surface (3a), back-end ductwork (9) leading portion facade arranges the second conduction oil radiation heating-surface (3b), leading portion internal placement conduction oil convection heating surface (10) of back-end ductwork (9), the exhanst gas outlet section on recirculating fluidized bed top arranges steam roof tube heating surface (5), steam convection heating surface (11) is arranged in back-end ductwork (9) stage casing, high-temperature flue gas passes through the first conduction oil radiation heating-surface (3a) and steam roof tube heating surface (5) in burning bed, back-end ductwork (9) is entered after separator (7) carries out flue dust separation, along flue direction successively by the second conduction oil radiation heating-surface (3b), conduction oil convection heating surface (10), steam convection heating surface (11), water side economizer (12) and air preheater (13), finally enter flue gas emission, the first described conduction oil radiation heating-surface (3a) and the second conduction oil radiation heating-surface (3b) adopt spiral fashion oil pipe, and described steam roof tube heating surface (5) adopts water pipe.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310116093.XA CN103216937B (en) | 2013-04-03 | 2013-04-03 | The circulation fluidized bed organic heat-carrying agent stove of a kind of deep fat and steam coproduction |
| PCT/CN2014/072384 WO2014161396A1 (en) | 2013-04-03 | 2014-02-21 | Circulating bed organic heat carrier furnace for co-producing hot oil and water vapour |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310116093.XA CN103216937B (en) | 2013-04-03 | 2013-04-03 | The circulation fluidized bed organic heat-carrying agent stove of a kind of deep fat and steam coproduction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103216937A CN103216937A (en) | 2013-07-24 |
| CN103216937B true CN103216937B (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310116093.XA Active CN103216937B (en) | 2013-04-03 | 2013-04-03 | The circulation fluidized bed organic heat-carrying agent stove of a kind of deep fat and steam coproduction |
Country Status (2)
| Country | Link |
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| CN (1) | CN103216937B (en) |
| WO (1) | WO2014161396A1 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216937B (en) * | 2013-04-03 | 2016-03-30 | 清华大学 | The circulation fluidized bed organic heat-carrying agent stove of a kind of deep fat and steam coproduction |
| CN103423869B (en) * | 2013-08-13 | 2016-04-13 | 北京热华能源科技有限公司 | A kind of Horizontal type circulating fluid bed heat-conducting oil furnace |
| CN104566947A (en) * | 2013-10-17 | 2015-04-29 | 无锡东马锅炉科技有限公司 | Hot-water steam co-production boiler device and method |
| CN104033271B (en) * | 2014-05-26 | 2016-06-15 | 北京时代科锐新能源科技有限公司 | A kind of efficient waste heat recycling system |
| CN105485712A (en) * | 2016-01-13 | 2016-04-13 | 北京一亚高科能源科技有限公司 | Heat conduction oil boiler |
| CN107687632A (en) * | 2017-08-22 | 2018-02-13 | 杭州锅炉集团股份有限公司 | Conduction oil and the double medium coproduction CFBBs of water vapour |
| CN109827333A (en) * | 2019-03-21 | 2019-05-31 | 佛山市三水粤山装饰实业有限公司 | A kind of thermal oil heating piping system of energy-saving and emission-reduction |
| CN110470055B (en) * | 2019-08-30 | 2020-12-25 | 嘉兴北化高分子助剂有限公司 | High-efficient conduction oil boiler |
| CN112028159A (en) * | 2020-08-07 | 2020-12-04 | 国家电投集团电站运营技术（北京）有限公司 | Power plant wastewater treatment system and wastewater treatment method |
| CN112808168B (en) * | 2021-03-14 | 2022-07-26 | 北京四维天拓技术有限公司 | Composite heating hydrothermal reaction device and composite heating method thereof |
| CN117212800A (en) * | 2022-06-15 | 2023-12-12 | 清华大学 | Double-medium TFB gasification incinerator and method for implementing waste gasification incineration |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200952825Y (en) * | 2006-09-21 | 2007-09-26 | 四川东方锅炉工业锅炉集团有限公司 | Composite boiler with hot oil deflecting heater |
| CN101634449A (en) * | 2009-09-01 | 2010-01-27 | 东南大学 | Method for reducing emission of carbon dioxide by circulating fluidized bed temperature flue gas circulation oxygen combustion |
| CN102012097B (en) * | 2010-04-28 | 2013-01-02 | 山东圣威新能源有限公司 | Fluidized bed oil and water dual-medium circulation boiler |
| CN102322632B (en) * | 2011-09-09 | 2013-11-06 | 山东圣威新能源有限公司 | Low-cost, small-sized, modular and direct-current circulating fluidized bed boiler |
| CN203203246U (en) * | 2013-04-03 | 2013-09-18 | 清华大学 | Circulating bed organic heat carrier furnace capable of coproducing hot oil and water vapor |
| CN103216937B (en) * | 2013-04-03 | 2016-03-30 | 清华大学 | The circulation fluidized bed organic heat-carrying agent stove of a kind of deep fat and steam coproduction |
-
2013
- 2013-04-03 CN CN201310116093.XA patent/CN103216937B/en active Active
-
2014
- 2014-02-21 WO PCT/CN2014/072384 patent/WO2014161396A1/en active Application Filing
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| Publication number | Publication date |
|---|---|
| WO2014161396A1 (en) | 2014-10-09 |
| CN103216937A (en) | 2013-07-24 |
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