CN106123339A - A kind of condensing vacuum boiler - Google Patents
A kind of condensing vacuum boiler Download PDFInfo
- Publication number
- CN106123339A CN106123339A CN201610482758.2A CN201610482758A CN106123339A CN 106123339 A CN106123339 A CN 106123339A CN 201610482758 A CN201610482758 A CN 201610482758A CN 106123339 A CN106123339 A CN 106123339A
- Authority
- CN
- China
- Prior art keywords
- burner
- vacuum boiler
- air preheater
- condensing vacuum
- flue gas
- 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
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Classifications
-
- 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
- F24H7/00—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release
- F24H7/02—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid
- F24H7/04—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid with forced circulation of the transfer fluid
- F24H7/045—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid with forced circulation of the transfer fluid using fluid fuel
- F24H7/0466—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid with forced circulation of the transfer fluid using fluid fuel the transfer fluid being water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
-
- 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
- F24H9/00—Details
- F24H9/0005—Details for water heaters
-
- 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
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L2900/00—Special arrangements for supplying or treating air or oxidant for combustion; Injecting inert gas, water or steam into the combustion chamber
- F23L2900/15043—Preheating combustion air by heat recovery means located in the chimney, e.g. for home heating devices
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The invention discloses a kind of condensing vacuum boiler.nullIncluding: aerator、Air preheater、Burner、Combustor、Flue gas waste heat recovery apparatus，The burning Indoor Combustion of described condensing vacuum boiler produces high-temperature flue gas and is sequentially connected in series by flue gas waste heat recovery apparatus and air preheater，Respectively with from custom system backwater and utilize aerator introduce air preheater cold air heat exchange，Reclaim a large amount of fume afterheat，Improve the utilization rate of the smoke discharging residual heat of condensing vacuum boiler，Described condensing vacuum boiler uses the burner of premixing plane burning to directly heat each tube bank of the liquid nest of tubes being vertically disposed in combustor，It is possible not only to improve the heat exchange efficiency of boiler，Make condensing vacuum boiler structure compacter，Reduce boiler volume，Can also effectively suppress the content of the pollutant such as NOx and CO，Reduce exhaust emission，Realize economic benefit and the social benefit of energy-saving and emission-reduction.
Description
Technical field
The present invention relates to boiler technology field, true particularly to a kind of condensing that the fume afterheat degree of depth can be recycled
Empty boiler boiler.
Background technology
Vacuum boiler is to utilize water at various pressures, and the different characteristic of boiling temperature is operated.Such as: one
Under individual atmospheric pressure, the boiling temperature of water is 100 DEG C, and under the pressure of 6mmHg, the boiling temperature of water is then 4 DEG C, vacuum boiler
Then working in the pressure limit of 20mmHg～500mmHg, corresponding leaving water temperature is 15 DEG C～80 DEG C.At vacuum boiler
Under operating pressure, burning makes heat medium water temperature rise to saturation temperature, and produces mutually synthermal steam, heat exchanger at the water surface
In logical cold water, the cold water in pipe by pipe outside steam be heated into warm water and pass to user at, and the steam outside pipe is cooled coagulates
Form water droplet backwater surface to be heated again, thus complete whole cyclic process.
Current vacuum boiler is that boiler internal chilled water is heated by the combustion heat utilizing burner to produce mostly, produces
Raw flue-gas temperature is about 170 DEG C, and is expelled directly out by chimney by this part smoke discharging residual heat, but both wraps in this part of waste heat
Include the sensible heat of flue gas, contain again the latent heat (1Nm of a large amount of steam31.55kg steam can be produced after combustion of natural gas), its combustion
The 17% of material heat is not used effectively, and causes this part of waste heat to waste, produces exhaust emission simultaneously.As according to smoke evacuation
Waste-heat recovery device and air preheater, just can recycle this part of waste heat, and use liquid nest of tubes and premix simultaneously
Close the combustion system of plane burner, be possible not only to improve boiler thermal output, make condensing vacuum boiler densification, reduce vacuum
Boiler volume, and vertical liquid pipe arrangement mode is also beneficial to reduce the content of NOx and CO, reduces while saving the energy
The discharge of pollutant, thus preserve the ecological environment.
Summary of the invention
It is an object of the invention to provide a kind of condensing vacuum boiler, solve the deficiencies in the prior art, can be by flue gas
Temperature is down to less than 30 DEG C, and can be improved to 98%(by high-order heat in boiler efficiency by the water vapor condensation of more than 80% in flue gas
Value calculates) while, reduce the discharge of NOx and CO, it is achieved the economic benefit of energy-saving and emission-reduction and social benefit.
For achieving the above object, the present invention provides following technical scheme:
A kind of condensing vacuum boiler, including: combustor, burner, device for recycling exhaust smoke residual heat, air preheater, air blast
Machine, smoke evacuation outlet, described aerator introduces cold air and enters air preheater, the hot-air after air preheater preheats
With the combustion gas mixing from gas pipeline, entering burner after mixing, described burner is connected with combustor, heat transfer in combustor
Pipe uses the liquid nest of tubes vertically arranged, the exhanst gas outlet of described combustor is connected with flue gas waste heat recovery apparatus, combustor internal combustion
Burn the high-temperature flue gas produced and enter flue gas waste heat recovery apparatus through liquid nest of tubes, carry out a heat exchange with the backwater from system,
Exhaust gas temperature after heat exchange can be reduced to about 70 DEG C, and the port of export of described flue gas waste heat recovery apparatus is with air preheater even
Connecing, the middle temperature flue gas that flue gas waste heat recovery apparatus is discharged enters the cold air of air preheater and aerator introducing and carries out secondary
Heat exchange, described air preheater upper end is provided with smoke evacuation outlet, carries out the low-temperature flue gas after secondary heat exchange by this smoke evacuation outlet
Discharging, its exhaust gas temperature can be reduced to less than 30 DEG C.
Further, being provided with cold-air duct between described air preheater and aerator, described air preheat fills
Put and be provided with hot-air duct between burner.
Further, condensate drainage pipe it is provided with between described combustor and flue gas waste heat recovery apparatus, after flue gas condensing
The condensation water produced can be discharged by condensate drainage pipe.
Further, described air preheater uses plate-type heat exchange structure, and it is strong that plank frame has corrosion resistance, heat exchange
Efficiency is high, and cost is more economical waits many-sided advantage.
Further, described burner is plane burner.
Further, the combustion system of described burner uses the combustion system of liquid nest of tubes premixing plane burner, its
Combustion flame directly heats each tube bank of the liquid nest of tubes being vertically disposed in combustor, and the temperature of its combustion flame is by from liquid pipe
Medium cooling in group's pipe, to reduce the content of NOx.
Compared with prior art, the invention has the beneficial effects as follows:
1, in traditional vacuum boiler foundation, it is arranged in series device for recycling exhaust smoke residual heat and air preheater in smoke evacuation outlet,
The flue gas making boiler emission is introduced into device for recycling exhaust smoke residual heat and carries out heat exchange with the backwater from custom system, enters back into air
Preheating device and the cold air heat exchange utilizing aerator to introduce air preheater.The flue gas row of vacuum boiler under standard condition
Putting temperature about 170 DEG C, after device for recycling exhaust smoke residual heat, flue-gas temperature can be reduced to about 70 DEG C, then through air preheat
After device, flue-gas temperature can be reduced to less than 30 DEG C, effectively make use of sensible heat and the latent heat of a large amount of steam of flue gas, by cigarette
The water vapor condensation of more than 80% in gas, has reclaimed the 17% of fuel heat, boiler efficiency is improved to 98%(based on higher calorific value
Calculate).Effective utilization of this part high temperature heat, not only increases the heat exchange efficiency of boiler, reduces its fuel consumption, more can improve
The utilization rate of the energy, reduces the smoke discharging residual heat pollution to environment, it is achieved the economic benefit of energy-saving and emission-reduction and social benefit.
2, use the combustion system of the burner of liquid nest of tubes premixing plane burning, make combustion flame directly heat vertical cloth
The tube bank being placed in combustor, can make tube bank be heated evenly, and heat transfer efficiency improves, and makes condensing vacuum boiler structure more step up
Gather, thus reduce volume.
3, in the pipe of liquid nest of tubes, medium is used for cooling down the flame of burner, i.e. reduces flame temperature.Efficiency of combustion improves, can
Effectively to suppress the content of the pollutant such as combustion process NOx and CO.
4, the fume afterheat degree of depth can be recycled by this vacuum boiler, exhaust gas temperature is down to less than 30 DEG C, reduces simultaneously
The discharge of NOx and CO, is possible not only to realize energy-saving and emission-reduction, more can protect environment.
Accompanying drawing explanation
Fig. 1 is the structural representation for one embodiment of the invention is described.
In figure: 1-combustor, 2-burner, 3-flue gas waste heat recovery apparatus, 4-air preheater, 5-aerator, 6-
Smoke evacuation outlet, 7-liquid nest of tubes, 8-hot-air duct, 9-cold-air duct, 10-condensate drainage pipe.
Detailed description of the invention
The present invention is further described below in conjunction with the accompanying drawings:
A kind of condensing vacuum boiler as shown in Figure 1, including combustor 1, burner 2, flue gas waste heat recovery apparatus 3, air
Preheating device 4, aerator 5, smoke evacuation outlet 6, liquid nest of tubes 7, hot-air duct 8, cold-air duct 9, condensate drainage pipe 10.
Described aerator 5 introduces cold air and enters air preheater 4, the hot-air after air preheater 4 preheats
With the combustion gas mixing from gas pipeline, entering burner 2 after mixing, described burner 2 is connected with combustor 1, in combustor 1
Heat-transfer pipe uses the liquid nest of tubes 7 vertically arranged, the chilled water in liquid nest of tubes 7 is burned the combustion flame of device 2 and is heated to saturated temperature
Degree, generates mutually synthermal steam, heats to the backwater from user's water system, and the warm water after heating is admitted to the water supply of user
System uses, and the cooled water that condenses into of the steam outside pipe is back to liquid nest of tubes 7 and is heated.
The exhanst gas outlet of described combustor 1 is connected with flue gas waste heat recovery apparatus 3, and high-temperature flue gas enters through liquid nest of tubes 7
Flue gas waste heat recovery apparatus 3, carries out a heat exchange with the backwater from user's water system, and the exhaust gas temperature after heat exchange can be reduced to
About 70 DEG C, the port of export of described flue gas waste heat recovery apparatus 3 is connected with air preheater 4, flue gas waste heat recovery apparatus 3 row
The middle temperature flue gas gone out enters the cold air of air preheater 4 and aerator 5 introducing and carries out secondary heat exchange, and described air preheat fills
Putting 5 upper ends and be provided with smoke evacuation outlet 6, carry out the low-temperature flue gas after secondary heat exchange and discharged by this smoke evacuation outlet 6, its exhaust gas temperature can
It is reduced to less than 30 DEG C.
Cold-air duct 9, described air preheater 4 and combustion it is provided with between described air preheater 4 and aerator 5
Hot-air duct 8 it is provided with between burner 2.
It is strong that described air preheater 4 uses plate-type heat exchange structure, plank frame to have corrosion resistance, and heat exchange efficiency is high,
Cost is more economical waits many-sided advantage.
It is provided with condensate drainage pipe 10 between described combustor 1 and flue gas waste heat recovery apparatus 3, produces after flue gas condensing
Condense water to be discharged by condensate drainage pipe 10.
Described burner 2 is plane burner, and the combustion system of burner 2 uses liquid nest of tubes 7 premixing plane burner
Combustion system, carry out high load capacity plane burning.Its combustion flame directly heats the liquid nest of tubes being vertically disposed in combustor 1
Each tube bank of 7, the temperature of its combustion flame is cooled down from the medium in liquid nest of tubes pipe, and tube bank is heated evenly, and efficiency of combustion carries
Height, can effectively suppress the content of the pollutant such as combustion process NOx and CO.
Exhaust gas temperature can be down to less than 30 DEG C by technical solution of the present invention, by the water vapor condensation of more than 80% in flue gas, returns
Receiving the 17% of fuel heat, boiler thermal output raising to 98%(is pressed higher calorific value and is calculated), while reducing exhaust gas temperature effectively
Improve the utilization rate of the energy, not only reduce the smoke discharging residual heat thermal pollution to environment, more effectively reduce containing of the pollutant such as NOx and CO
Amount, is of value to the protection of ecological environment.
Claims (8)
1. a condensing vacuum boiler, it is characterised in that: include combustor (1), burner (2), flue gas waste heat recovery apparatus
(3), air preheater (4), aerator (5), smoke evacuation outlet (6), the sky of described aerator (5) and air preheater (4)
Gas arrival end connects, and the air outlet slit end of described air preheater (4) is connected with burner (2), described burner (2) and combustion
Burning room (1) to connect, the exhanst gas outlet of described combustor (1) is connected with flue gas waste heat recovery apparatus (3), described flue gas waste heat recovery
The port of export of device (3) is connected with air preheater (4), and described air preheater (4) upper end is provided with smoke evacuation outlet
(6).
A kind of condensing vacuum boiler the most according to claim 1, it is characterised in that: described air preheater (4) with
It is provided with cold-air duct (9) between aerator (5), is provided with heat between described air preheater (4) and burner (2) empty
Feed channel (8).
A kind of condensing vacuum boiler the most according to claim 1 and 2, it is characterised in that: described air preheater (4)
Use plate-type heat exchange structure.
A kind of condensing vacuum boiler the most according to claim 1, it is characterised in that: more than described combustor (1) and flue gas
Condensate drainage pipe (10) it is provided with between heat reclamation device (3).
A kind of condensing vacuum boiler the most according to claim 1, it is characterised in that: described burner (2) is plane combustion
Burner.
A kind of condensing vacuum boiler, it is characterised in that: described burner (2) uses liquid
The combustion system of nest of tubes (7) premix burner (2) directly heats each of the liquid nest of tubes (7) that is vertically disposed in combustor (1)
Tube bank.
A kind of condensing vacuum boiler the most according to claim 6, it is characterised in that: it is situated between in the pipe of described liquid nest of tubes (7)
Matter is used for cooling down the flame of burner (2), i.e. reduces flame temperature.
A kind of condensing vacuum boiler the most according to claim 1, it is characterised in that: described condensing vacuum boiler connects
Being connected to the return water system of user, the return water system of described user takes the mode of parallel connection to be respectively connected to condensing vacuum boiler and cigarette
In gas waste-heat recovery device (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610482758.2A CN106123339B (en) | 2016-06-28 | 2016-06-28 | A kind of condensing vacuum boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610482758.2A CN106123339B (en) | 2016-06-28 | 2016-06-28 | A kind of condensing vacuum boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106123339A true CN106123339A (en) | 2016-11-16 |
| CN106123339B CN106123339B (en) | 2019-05-31 |
Family
ID=57265916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610482758.2A Active CN106123339B (en) | 2016-06-28 | 2016-06-28 | A kind of condensing vacuum boiler |
Country Status (1)
| Country | Link |
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| CN (1) | CN106123339B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107490191A (en) * | 2017-09-06 | 2017-12-19 | 西安交通大学 | A kind of contact heat exchange type desulfurization and denitrification integral natural gas condensing boiler |
| CN109578966A (en) * | 2018-12-04 | 2019-04-05 | 杭州联赫节能环保技术有限公司 | A kind of heat pipe evaporator |
| CN109869705A (en) * | 2017-12-01 | 2019-06-11 | 河北正能锅炉设备有限公司 | A kind of New efficient energy-saving boiler |
| CN110425726A (en) * | 2019-07-05 | 2019-11-08 | 重庆佳威厨房设备有限公司 | A kind of energy-saving type boiler |
| CN110553398A (en) * | 2019-10-09 | 2019-12-10 | 浙江赛班热能科技有限公司 | Premixing top-spraying type multistage condensation vacuum hot water boiler before gas combustion |
| CN115077285A (en) * | 2022-07-27 | 2022-09-20 | 南通京阳机械科技有限公司 | Energy-saving boiler flue gas waste heat absorption device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100109441A (en) * | 2009-03-31 | 2010-10-08 | 김병학 | Energy saving boiler |
| CN202141195U (en) * | 2011-07-05 | 2012-02-08 | 浙江上能锅炉有限公司 | Vacuum hot water boiler with waste heat recycling device |
| CN204786505U (en) * | 2015-07-20 | 2015-11-18 | 江苏双良锅炉有限公司 | Utilize secondary network return water to discharge fume to boiler and carry out waste heat recovery's recovery system |
| CN204943440U (en) * | 2015-09-16 | 2016-01-06 | 武汉东晟捷能科技有限公司 | A kind of high-efficiency energy-saving biomass boiler |
| CN105698388A (en) * | 2014-11-28 | 2016-06-22 | 西安上尚机电有限公司 | Recycling system of waste heat of industrial heat conduction oil boiler |
-
2016
- 2016-06-28 CN CN201610482758.2A patent/CN106123339B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100109441A (en) * | 2009-03-31 | 2010-10-08 | 김병학 | Energy saving boiler |
| CN202141195U (en) * | 2011-07-05 | 2012-02-08 | 浙江上能锅炉有限公司 | Vacuum hot water boiler with waste heat recycling device |
| CN105698388A (en) * | 2014-11-28 | 2016-06-22 | 西安上尚机电有限公司 | Recycling system of waste heat of industrial heat conduction oil boiler |
| CN204786505U (en) * | 2015-07-20 | 2015-11-18 | 江苏双良锅炉有限公司 | Utilize secondary network return water to discharge fume to boiler and carry out waste heat recovery's recovery system |
| CN204943440U (en) * | 2015-09-16 | 2016-01-06 | 武汉东晟捷能科技有限公司 | A kind of high-efficiency energy-saving biomass boiler |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107490191A (en) * | 2017-09-06 | 2017-12-19 | 西安交通大学 | A kind of contact heat exchange type desulfurization and denitrification integral natural gas condensing boiler |
| CN109869705A (en) * | 2017-12-01 | 2019-06-11 | 河北正能锅炉设备有限公司 | A kind of New efficient energy-saving boiler |
| CN109578966A (en) * | 2018-12-04 | 2019-04-05 | 杭州联赫节能环保技术有限公司 | A kind of heat pipe evaporator |
| CN110425726A (en) * | 2019-07-05 | 2019-11-08 | 重庆佳威厨房设备有限公司 | A kind of energy-saving type boiler |
| CN110553398A (en) * | 2019-10-09 | 2019-12-10 | 浙江赛班热能科技有限公司 | Premixing top-spraying type multistage condensation vacuum hot water boiler before gas combustion |
| CN115077285A (en) * | 2022-07-27 | 2022-09-20 | 南通京阳机械科技有限公司 | Energy-saving boiler flue gas waste heat absorption device |
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| Publication number | Publication date |
|---|---|
| CN106123339B (en) | 2019-05-31 |
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