CN104456507A - Saturating and overheating integrated boiler - Google Patents
Saturating and overheating integrated boiler Download PDFInfo
- Publication number
- CN104456507A CN104456507A CN201410527448.9A CN201410527448A CN104456507A CN 104456507 A CN104456507 A CN 104456507A CN 201410527448 A CN201410527448 A CN 201410527448A CN 104456507 A CN104456507 A CN 104456507A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- outlet
- boiler
- connects
- entrance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention relates to a saturating and overheating integrated boiler. The saturating and overheating integrated boiler comprises a boiler body. A boiler chamber formed by water walls and a smoke channel combustor are arranged in the boiler body. A first heat exchanger is arranged in the boiler chamber, the inlet of the first heat exchanger is connected with the gas phase outlet of a steam pocket, and the outlet of the first heat exchanger is connected with superheated steam utilization equipment. A second heat exchanger and a third heat exchanger are arranged in the smoke channel. The liquid phase outlet of the steam pocket is connected with the inlets of the water walls through downcomers, and the outlets of the water walls are connected with the first inlet of the steam pocket. The second inlet of the steam pocket is connected with an external saturated steam channel, and the third inlet of the steam pocket is connected with the tube pass outlet of the second heat exchanger. The inlet of the third heat exchanger is connected with the atmosphere, and the outlet of the third heat exchanger is connected with the air inlet of the boiler chamber. The saturating and overheating integrated boiler has the functions of a steam superheating boiler and the functions of a traditional power boiler, superheating of saturated steam and superheating of boiler feed water can be achieved in the same thermal device, the thermal efficiency is high, the equipment investment is reduced, process control outside the equipment is omitted, the occupied area of the equipment is reduced, the consumption of fuel is reduced, and the emission of smoke dust, nitric oxides and sulphides is reduced.
Description
Technical field
The present invention relates to chemical industry equipment, specifically refer to a kind of saturated overheated one boiler.
Background technology
In coal gasification apparatus, the saturated vapor that normal generation is a large amount of, in order to reduce steam loss and heat-energy losses, reaching desirable economic benefit, must make full use of these saturated vapors.Saturated vapor heats cold medium except going as thermal medium, and major part goes drive roturbo or go generating after overheated.At present usually these continue a large amount of saturated vapors be sent to steam superheater carry out overheated.Flue gas after steam superheater heating saturated vapor is not fully utilized due to Lowlevel thermal energy, and exhaust gas temperature is all higher, causes secondary waste.Traditional steam superheater high fume temperature, the thermal efficiency is low, and when conventional boiler shares, equipment investment is many, and floor space is large.
Generally all power center (PC) is equipped with, enough heating power and the whole chemical plant installations running of electric power confession can be produced in large chemical complex.Due to the Typical Disposition that boiler is power center (PC), feedwater is heated to saturated rear overheated by boiler, sends into steam pipe system.Therefore, boiler and steam superheater have the function of overheated saturated vapor, there is the overlap of function.
Existing chemical plant installations has manyly can produce a large amount of saturated vapor, processing method is normally normal introduces power center (PC) by saturated vapor, be equipped with one or more sets steam superheaters and saturated vapor is carried out overheated recycling, and boiler, steam turbine are the nucleus equipments of power center (PC), are also Typical Disposition; Also steam superheater is equipped with while newly-built power boiler.It is overheated that saturated vapor just carries out by the function of steam superheater, and the flue gas Lowlevel thermal energy of heating saturated vapor cannot be fully used, and two kinds of heat power equipments are also deposited.Therefore there is construction investment large, floor space is large, and steam pipe system control point is many, energy waste, the shortcoming that fume emission is many.
Summary of the invention
Technical problem to be solved by this invention provides a kind of saturated overheated one boiler that can make full use of high level heat and Lowlevel thermal energy and residual heat of exhaust flue gas for the present situation of prior art, thus reach raising efficiency of utilization, energy-saving and emission-reduction, and reduce the object of equipment investment, Optimization Technology control, saving occupation area of equipment.
The present invention solves the problems of the technologies described above adopted technical scheme: this saturated overheated one boiler, comprise body of heater, it is characterized in that in described body of heater, being provided with the burner hearth be made up of water-cooling wall, also longitudinally exhaust gases passes is provided with in body of heater, the entrance of described exhaust gases passes connects the outlet of described burner hearth, and the outlet of exhaust gases passes connects body of heater smoke evacuation outlet; The bottom of described burner hearth is provided with burner;
Be provided with the First Heat Exchanger for overheated saturated vapor near furnace outlet position in described burner hearth; The entrance of described First Heat Exchanger connects the gaseous phase outlet of drum, and the outlet of First Heat Exchanger connects superheated steam and uses equipment;
Be provided with the second heat exchanger for heating boiler water near exhaust gases passes entry position in described exhaust gases passes;
Described drum is arranged on the top of described body of heater internal furnace; The liquid-phase outlet of described drum connects the entrance of described water-cooling wall by down-comer, the outlet of described water-cooling wall connects the first entrance of described drum; Second entrance of described drum connects out-of-bounds saturated vapor passage; 3rd entrance of described drum connects the tube side outlet of described second heat exchanger;
The below of inherent described second heat exchanger of described exhaust gases passes is also provided with the 3rd heat exchanger, and the entrance of described 3rd heat exchanger connects air, and the outlet of the 3rd heat exchanger connects the air intake of described burner hearth.
Preferably, described First Heat Exchanger, the second heat exchanger and the 3rd heat exchanger all coil setting.
For preventing external saturated vapor from directly impacting the saturated water surface in drum, cause saturation water liquid level in drum to occur excessive fluctuation, as improvement, being provided with reallocation pipe in described drum, the entrance of described reallocation pipe connects the second entrance of described drum; Described reallocation pipe is evenly equipped with multiple outlet.
Better, deflection plate for the alter direction of motion can be connected with in each outlet of described reallocation pipe.
Described First Heat Exchanger can be steam superheater, and described second heat exchanger can be economizer, and described 3rd heat exchanger can be air preheater.
Preferred described burner hearth is inverted "L" shaped.
Compared with prior art, one boiler provided by the present invention has the function of steam superheater and normal power boilers simultaneously, make that saturated vapor is overheated and boiler feedwater is overheated realizes in same thermal device, and the thermal efficiency is high, save equipment investment, decrease the outer technology controlling and process of apparatus body, decrease occupation area of equipment, decrease the consumption of fuel quantity, thus decrease the discharge of exhaust gas dust, nitrogen oxide, sulfide.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention structural representation;
Fig. 2 is the embodiment of the present invention each parts annexation schematic diagram;
Fig. 3 is the schematic diagram of drum in the embodiment of the present invention;
Fig. 4 is the schematic diagram of pipe of reallocating in the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
As shown in Figures 1 to 4, this saturated overheated one boiler comprises:
Body of heater 1, the body of heater 1 in the present embodiment is frame structure, is provided with and forms inverted "L" shaped burner hearth 12 by water-cooling wall 11 in it.Also longitudinally be provided with exhaust gases passes 13 in body of heater 1, the entrance of exhaust gases passes connects the outlet of burner hearth 12, and the outlet of exhaust gases passes connects body of heater smoke evacuation outlet; The bottom of burner hearth 12 is provided with burner 2;
First Heat Exchanger 3 is arranged on the position near furnace outlet in burner hearth, for overheated saturated vapor; First Heat Exchanger 3 in the present embodiment is steam superheater.The entrance of First Heat Exchanger connects the gaseous phase outlet of drum 5, and the outlet of First Heat Exchanger connects downstream superheated steam and uses equipment.
The second heat exchanger 4 and the 3rd heat exchanger 6 is from top to bottom provided with successively in exhaust gases passes 13.Wherein the second heat exchanger 4 is arranged near exhaust gases passes entry position, for heating boiler water.The outlet of the second heat exchanger 4 connects the 3rd entrance of drum 5, and the entrance of the second heat exchanger connects boiler water pipeline (not shown).The second heat exchanger in the present embodiment is economizer.
3rd heat exchanger 6 is positioned at the below of the second heat exchanger 4, is made up of multiple air preheater be connected in series successively.The entrance of the 3rd heat exchanger 6 connects ambient atmosphere, and the outlet of the 3rd heat exchanger connects the air intake of burner hearth.
Drum 5 is arranged on the top of body of heater 1 internal furnace 12; The liquid-phase outlet of drum connects the entrance of water-cooling wall 11 by down-comer 53, the outlet of water-cooling wall connects the first entrance of drum.
Be provided with reallocation pipe 51 in drum 5, the entrance of reallocation pipe 51 connects the second entrance 55 of drum; Reallocation pipe 51 is evenly equipped with multiple outlet 54.Each outlet of reallocation pipe 51 is connected with the deflection plate 52 for the alter direction of motion.Extraneous saturated vapor connects the second entrance of drum by saturated vapor pipeline (not shown), carry saturated vapor by reallocation pipe 51 in drum 5.
Drum in the present embodiment, except being heat exchange place, also has the function of buffering, voltage stabilizing.Drum specification is different because of boiler capacity and the difference accessing saturated vapor amount with concrete control liquid level.
The operation principle of this saturated overheated one boiler is described below:
The normal temperature combustion air sent here by air blast sends into burner hearth after the 3rd heat exchanger heating, and fuel is lighted at burner, and produce high-temperature flue gas in burner hearth, flue gas temperature of hearth outlet controls at about 1180 DEG C.High-temperature flue gas is successively through water-cooling wall, First Heat Exchanger, the second heat exchanger and the 3rd heat exchanger, and through heat exchange layer by layer, the final low-temperature flue gas controlling to discharge is at 110 DEG C.
Boiler feedwater is pumped in the tube side of the second heat exchanger of integral pot stove by boiler feedwater, boiler feedwater is heated to form saturation water and sends into drum, saturation water in drum enters drum down-comer and water-cooling wall successively through liquid-phase outlet, and heat absorption evaporation, generates vehicle repair major in drum.The operating pressure of drum is 11.28MPa, and carbonated drink temperature is 319 DEG C.Out-of-bounds saturated vapor directly sends into drum after temperature and pressure detect, mix with the saturated vapor in drum, out-of-bounds saturated vapor enters reallocation pipe by drum entrance, then enters drum by each outlet on reallocation pipe, and other saturated vapor mixing in drum.Then enter the tube side of First Heat Exchanger from the gaseous phase outlet of drum, absorb flue gas heat overheated, now superheater outlet temperature flue gas is at about 550 DEG C, and after carrying out temperature regulable control to superheated steam, the qualified superheated steam obtained sends one boiler.
Entered exhaust gases passes by the flue gas of a large amount of heat exchange via furnace outlet, enter the second heat exchanger and the 3rd heat exchanger successively, respectively boiler feedwater and combustion air are heated.Flue-gas temperature after heat exchange reduces further, and the waste heat of flue gas is fully utilized.
The present invention can introduce the saturated vapor in out-of-bounds existing apparatus, and boiler feedwater is heated and overheated simultaneously, and effectively make use of high-temperature residual heat and low temperature exhaust heat, the thermal efficiency is high, and energy conservation and consumption reduction effects is good, and saves equipment investment.
Claims (6)
1. saturated overheated one boiler, comprise body of heater (1), it is characterized in that in described body of heater (1), being provided with the burner hearth (12) be made up of water-cooling wall (11), also longitudinally exhaust gases passes (13) is provided with in body of heater (1), the entrance of described exhaust gases passes connects the outlet of described burner hearth (12), and the outlet of exhaust gases passes connects body of heater smoke evacuation outlet; The bottom of described burner hearth (12) is provided with burner (2);
Be provided with the First Heat Exchanger (3) for overheated saturated vapor near furnace outlet position in described burner hearth; The entrance of described First Heat Exchanger connects the gaseous phase outlet of drum (5), and the outlet of First Heat Exchanger connects superheated steam and uses equipment;
Be provided with the second heat exchanger (4) for heating boiler water near exhaust gases passes entry position in described exhaust gases passes (13);
Described drum is arranged on the top of described body of heater (1) internal furnace (12); The liquid-phase outlet of described drum connects the entrance of described water-cooling wall (11) by down-comer (53), the outlet of described water-cooling wall connects the first entrance of described drum; Second entrance of described drum connects out-of-bounds saturated vapor passage; 3rd entrance of described drum connects the tube side outlet of described second heat exchanger (4);
The below of inherent described second heat exchanger (4) of described exhaust gases passes (13) is also provided with the 3rd heat exchanger (6), the entrance of described 3rd heat exchanger (6) connects air, and the outlet of the 3rd heat exchanger connects the air intake of described burner hearth.
2. saturated overheated one boiler according to claim 1, is characterized in that described First Heat Exchanger (3), the second heat exchanger (4) and the 3rd heat exchanger (6) all coil setting.
3. saturated overheated one boiler according to claim 1 and 2, is characterized in that being provided with reallocation pipe (51) in described drum (5), and the entrance of described reallocation pipe (51) connects the second entrance of described drum; Described reallocation pipe (51) is evenly equipped with multiple outlet.
4. saturated overheated one boiler according to claim 3, is characterized in that each outlet of described reallocation pipe (51) is connected with the deflection plate (52) for the alter direction of motion.
5. saturated overheated one boiler according to claim 3, it is characterized in that described First Heat Exchanger is steam superheater, described second heat exchanger is economizer, and described 3rd heat exchanger is air preheater.
6. saturated overheated one boiler according to claim 5, is characterized in that described burner hearth is inverted "L" shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410527448.9A CN104456507B (en) | 2014-10-09 | Saturated overheated one boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410527448.9A CN104456507B (en) | 2014-10-09 | Saturated overheated one boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104456507A true CN104456507A (en) | 2015-03-25 |
| CN104456507B CN104456507B (en) | 2017-01-04 |
Family
ID=
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018099345A1 (en) * | 2016-11-29 | 2018-06-07 | 武汉都市环保工程技术股份有限公司 | Low calorific value coal gas power generation system and power generation method |
| CN112451691A (en) * | 2020-12-01 | 2021-03-09 | 天津卓优智顺科技有限公司 | Parallel row type high-temperature steam disinfection device |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000074346A (en) * | 1998-09-01 | 2000-03-14 | Ishikawajima Harima Heavy Ind Co Ltd | Circulation fluidized bed waste heat boiler |
| CN1912461A (en) * | 2006-08-11 | 2007-02-14 | 国电科技环保集团山东龙源环保有限公司 | Straw circulation fluidized-bed combustion boiler |
| CN102278155A (en) * | 2011-06-02 | 2011-12-14 | 马鞍山科达洁能股份有限公司 | Gas-stream turbine system |
| CN102494345A (en) * | 2011-12-26 | 2012-06-13 | 无锡东马锅炉有限公司 | High-efficiency waste liquid combustion boiler |
| CN202304455U (en) * | 2011-10-17 | 2012-07-04 | 杭州锅炉集团股份有限公司 | Intermittent saturated steam overheating power generation system for iron and steel enterprises |
| CN102661600A (en) * | 2012-04-27 | 2012-09-12 | 杭州锅炉集团股份有限公司 | Clean-burning blast furnace gas boiler |
| CN103133067A (en) * | 2013-03-15 | 2013-06-05 | 南京凯盛开能环保能源有限公司 | Steel-mill residual blast-furnace gas and residual saturated steam comprehensive utilization power generation system |
| CN103277782A (en) * | 2013-05-24 | 2013-09-04 | 太原锅炉集团有限公司 | Carbon black tail gas combusting boiler |
| CN103343955A (en) * | 2013-07-25 | 2013-10-09 | 南京凯盛开能环保能源有限公司 | Comprehensive recycling boiler device of extra coal gas and saturated steam of steel plant |
| CN203784922U (en) * | 2014-04-15 | 2014-08-20 | 四川川锅环保工程有限公司 | Ultrahigh pressure intermediate reheating boiler |
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000074346A (en) * | 1998-09-01 | 2000-03-14 | Ishikawajima Harima Heavy Ind Co Ltd | Circulation fluidized bed waste heat boiler |
| CN1912461A (en) * | 2006-08-11 | 2007-02-14 | 国电科技环保集团山东龙源环保有限公司 | Straw circulation fluidized-bed combustion boiler |
| CN102278155A (en) * | 2011-06-02 | 2011-12-14 | 马鞍山科达洁能股份有限公司 | Gas-stream turbine system |
| CN202304455U (en) * | 2011-10-17 | 2012-07-04 | 杭州锅炉集团股份有限公司 | Intermittent saturated steam overheating power generation system for iron and steel enterprises |
| CN102494345A (en) * | 2011-12-26 | 2012-06-13 | 无锡东马锅炉有限公司 | High-efficiency waste liquid combustion boiler |
| CN102661600A (en) * | 2012-04-27 | 2012-09-12 | 杭州锅炉集团股份有限公司 | Clean-burning blast furnace gas boiler |
| CN103133067A (en) * | 2013-03-15 | 2013-06-05 | 南京凯盛开能环保能源有限公司 | Steel-mill residual blast-furnace gas and residual saturated steam comprehensive utilization power generation system |
| CN103277782A (en) * | 2013-05-24 | 2013-09-04 | 太原锅炉集团有限公司 | Carbon black tail gas combusting boiler |
| CN103343955A (en) * | 2013-07-25 | 2013-10-09 | 南京凯盛开能环保能源有限公司 | Comprehensive recycling boiler device of extra coal gas and saturated steam of steel plant |
| CN203784922U (en) * | 2014-04-15 | 2014-08-20 | 四川川锅环保工程有限公司 | Ultrahigh pressure intermediate reheating boiler |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018099345A1 (en) * | 2016-11-29 | 2018-06-07 | 武汉都市环保工程技术股份有限公司 | Low calorific value coal gas power generation system and power generation method |
| RU2717181C1 (en) * | 2016-11-29 | 2020-03-18 | Висдри Сити Инвайронмент Протекшн Инжиниринг Ко., Лтд | Electric power generation system and method of power generation from coal gas with low calorific value |
| CN112451691A (en) * | 2020-12-01 | 2021-03-09 | 天津卓优智顺科技有限公司 | Parallel row type high-temperature steam disinfection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103133067A (en) | Steel-mill residual blast-furnace gas and residual saturated steam comprehensive utilization power generation system | |
| CN107525090B (en) | Come into operation the coal-fired power station boiler device and its application method of denitrating system when a kind of igniting | |
| CN205717146U (en) | A kind of ultrahigh pressure coal gas boiler | |
| CN101846459A (en) | Method for recycling waste heat of flue gas of heating furnace and heating furnace system | |
| WO2015014233A1 (en) | Circulating fluidized bed boiler having secondary reheat | |
| CN106016719A (en) | Efficient boiler with double auxiliary combustion furnaces | |
| CN103423870B (en) | Heat storage type combustion vacuum phase transition heating furnace | |
| CN103088178A (en) | Blast furnace hot-blast stove flue gas self-circulation combustion method and system | |
| CN103063044B (en) | Rotary hearth furnace smoke waste heat utilization system and rotary hearth furnace fume afterheat Application way | |
| CN102678195B (en) | Yellow phosphorus tail gas multiple gas-source combustion power generation system | |
| CN203549787U (en) | Single-pressure saturated vapor superheated boiler | |
| CN205592924U (en) | Boiler economizer system of steel pipe production usefulness | |
| CN209445339U (en) | A kind of energy-saving and environment-friendly exhaust gas electricity generation boiler | |
| CN202018185U (en) | Combined air furnace system | |
| CN103673650A (en) | Steel mill surplus gas and sanitary steam comprehensive utilization system and method | |
| CN203478607U (en) | Heat-accumulating-type vacuum-phase-change heating furnace | |
| CN203704684U (en) | Waste heat recycling device | |
| CN203443378U (en) | Improved lime kiln waste gas residual heat power generation system with byproduct gas afterburning | |
| CN206281365U (en) | A kind of high-temp waste gas afterheat utilizing system | |
| CN102012039B (en) | Forced circulation air preheat system | |
| CN104456507B (en) | Saturated overheated one boiler | |
| CN104456507A (en) | Saturating and overheating integrated boiler | |
| CN202002140U (en) | Forced circulation air preheating system | |
| CN206037002U (en) | Condensation steam boiler | |
| CN205535923U (en) | Cleaning type coal fired boiler discharges fume waste heat and puies forward matter and utilize system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |