CN106765284A - A kind of negative pressure is ignited heat exchange preheating device - Google Patents
A kind of negative pressure is ignited heat exchange preheating device Download PDFInfo
- Publication number
- CN106765284A CN106765284A CN201611182354.8A CN201611182354A CN106765284A CN 106765284 A CN106765284 A CN 106765284A CN 201611182354 A CN201611182354 A CN 201611182354A CN 106765284 A CN106765284 A CN 106765284A
- Authority
- CN
- China
- Prior art keywords
- heat
- burner hearth
- heat transfer
- preheating
- economizer bank
- 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.)
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Classifications
-
- 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
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
- F22B31/08—Installation of heat-exchange apparatus or of means in boilers for heating air supplied for combustion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23Q—IGNITION; EXTINGUISHING-DEVICES
- F23Q7/00—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs
- F23Q7/02—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs for igniting solid fuel
-
- 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
- F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
- F24H1/44—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with combinations of two or more of the types covered by groups F24H1/24 - F24H1/40 , e.g. boilers having a combination of features covered by F24H1/24 - F24H1/40
-
- 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
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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)
- Air Supply (AREA)
Abstract
A kind of negative pressure is ignited heat exchange preheating device, it is related to coal-burning boiler field, including burner hearth, blower fan, preheating pipeline and heat exchanging pipe, heat-insulation preheating layer and fluid heat transfer set are provided with outside the burner hearth, the heat-insulation preheating layer is arranged between the burner hearth and fluid heat transfer set, the heat exchanging pipe is tightly connected with the blower fan and the burner hearth respectively, and the preheating pipeline is connected with the burner hearth and the external world respectively；Can active control tracheae valve switch, improve efficiency, and layer chamber air-tightness is good, is difficult gas leakage.
Description
Technical field
The present invention relates to coal-burning boiler field, and in particular to a kind of negative pressure is ignited heat exchange preheating device.
Background technology
Boiler is a kind of energy conversion, and the energy being input into boiler has chemical energy or electric energy in fuel, and boiler is defeated
Go out the steam with certain heat energy, high-temperature water or organic heat carrier.Boiler is included in be filled with water pot and the burning fuel heated on fire
Place stove two large divisions.The hot water or steam produced in boiler can be directly warm for needed for industrial production and people's lives are provided
Can, also mechanical energy can be converted to by Steam Power Equipment, or electric energy converted mechanical energy into by generator again.
Existing coal-burning boiler is heated using the be filled with water traditional approach of pot of the direct combustion heating of open burner hearth.Its burning
Heat exchange efficiency is low, it is impossible to heat energy in carrier is fully converted to after chemical energy is burnt.Also, the fuel such as the coal in open burner hearth
Burning is influenced by ambient temperature big.Fuel is difficult to burn completely under low temperature, causes flue dust, carbon monoxide and sulfur monoxide etc. to be harmful to
Material is discharged with flue gas, not only pollutes environment, also reduces combustion heat value.
The content of the invention
Low in order to solve prior art coal-burning boiler heat exchange efficiency, fuel cannot fully burn, influenced by ambient temperature big
Problem, the present invention provides a kind of negative pressure and ignites heat exchange preheating device, can active control tracheae valve switch, improve efficiency,
And layer chamber air-tightness is good, is difficult gas leakage.
A kind of negative pressure is ignited heat exchange preheating device, including burner hearth, blower fan, preheating pipeline and heat exchanging pipe, outside the burner hearth
Heat-insulation preheating layer and fluid heat transfer set are provided with, the heat-insulation preheating layer is arranged at the burner hearth and the fluid heat transfer covers it
Between, the heat exchanging pipe is tightly connected with the blower fan and the burner hearth respectively, it is described preheating pipeline respectively with the burner hearth and
The external world is connected；
The heat exchanging pipe includes heat exchange heating coil and heat transfer flue, and the heat exchange heating coil is arranged at the fluid heat transfer set
It is interior, and front end connects with the upper furnace, end connects with the heat transfer flue；The heat transfer flue end and the blower fan
It is connected；
The preheating pipeline includes first, second, and third economizer bank, and the 3rd economizer bank is wrapped in the institute outside the burner hearth
State in heat-insulation preheating layer, and end connects with the lower furnace portion, front end connects with second economizer bank；Second preheating
Pipe is wrapped in the fluid heat transfer set and front end connects with first economizer bank；First economizer bank is set in described changing
Heating flue is interior and is in communication with the outside.
Heat exchanging pipe working mechanism is：Burner hearth fuel combustion produces high-temperature flue gas, through the heating coil heat external fluid that exchanges heat,
Heat exchanging fluid is used to heat, after be delivered to heat transfer flue, the first economizer bank in heating heat transfer flue, at the beginning of making inner air
Heat, then pumps to the external world through blower fan.
Preheating pipeline working mechanism is：Outside air is pumped into the first economizer bank under suction function, preliminary through heat transfer flue
Preheating；After be input into the second economizer bank, through two grades of fluid preheating in fluid heat transfer set；Enter the 3rd economizer bank afterwards, using in burner hearth
Fuel combustion heat is directly heated to hot-air；High temperature air is finally delivered to burner hearth bottom, and rising contacts combustion with fuel
Burn, heat release simultaneously produces high-temperature flue gas, into heat exchanging pipe.
Preferably, the fluid heat transfer set includes water delivery nozzle and water return outlet, and the heat exchange heating coil is wrapped in the fluid and changes
In hot jacket top, second economizer bank is wrapped in the fluid heat transfer set bottom, and the water return outlet is arranged at the heat exchange
Heating coil top, the water delivery nozzle is arranged between horizontal plane where the heat exchange heating coil and second economizer bank.The structure sets
It is equipped with beneficial to the steps intensification of air, and the flue gas heat exchanged heat in heating coil can be preferentially used for heating fluid heating, promote
Backflow, it is ensured that heating temperature.Preferably, the fluid is water, steam or conduction oil.
Further, the lower furnace portion is provided with grey comb, and the grey castor is arranged with electrothermal tube.The grey castor can be avoided
Lower section electrothermal tube is covered by ashes, is improved electric heating and is ignited efficiency, and facilitates the electrothermal tube to extract maintenance out.Preferably, it is described
Electric heating outer tube layer is quartz ampoule, includes carbon fiber heating silk.
Further, it is alternate with the 3rd economizer bank to be wound with hot-water line in the heat-insulation preheating layer outside the burner hearth.
The primary heat that the hot-water line can be produced using burner hearth fuel combustion is heated, for boiling water or producing high temperature to steam
Vapour.
The present invention brings the resultant effect to include：
The present invention can utilize blower fan and airtight pipeline, realize the negative pressure state in burner hearth and gas circuit, promote gas effective
Flowing, not only contributes to the abundant burning of fuel, also eliminated the leakage hidden danger of harmful exhaust.The present invention utilizes multi-stage heat exchanger machine
Structure, makes full use of burner hearth to transmit radiant heat and smoke convection heat, improves heating efficiency.The present invention also passes through multi-stage heat exchanger
Mechanism carries out multistage preheating to the air for entering burner hearth, not only promotes the abundant burning of fuel, reduces the generation of harmful substance；
And make air close to even more than fuel burning-point, improve fuel and ignite speed, realize speed heat in short-term.
Brief description of the drawings
Fig. 1 be the negative pressure of the embodiment of the present invention 1 ignite heat exchange preheating device internal structure schematic diagram.
Wherein, identical part identical reference in the accompanying drawings；Accompanying drawing is not drawn according to actual ratio.
Specific embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples.
Embodiment 1
A kind of negative pressure is ignited heat exchange preheating device, as shown in figure 1, including burner hearth 1, blower fan 2, preheating pipeline 3 and heat exchanger tube
Heat-insulation preheating layer 5 and fluid heat transfer set 6 are provided with outside road 4, the burner hearth 1, the heat-insulation preheating layer 5 is arranged at the burner hearth 1
And the fluid heat transfer set 6 between, the heat exchanging pipe 4 is tightly connected with the blower fan 2 and the burner hearth 1 respectively, described pre-
Pipe line 3 is connected with the burner hearth 1 and the external world respectively；
The heat exchanging pipe 4 includes heat exchange heating coil 41 and heat transfer flue 42, and the heat exchange heating coil 41 is arranged at the fluid
In Heat exchange jacekt 6, and front end connects with the top of the burner hearth 1, and end connects with the heat transfer flue 42；The end of the heat transfer flue 42
End is connected with the blower fan 2；
The preheating pipeline 3 includes first, second, and third economizer bank, and the 3rd economizer bank 33 is wrapped in outside the burner hearth
In the heat-insulation preheating layer, and end connects with the bottom of the burner hearth 1, and front end connects with second economizer bank 32；Described
Two economizer banks 32 are wrapped in the fluid heat transfer set 6 and front end connects with first economizer bank 31；First economizer bank
31 are set in the heat transfer flue 42 and are in communication with the outside.
The working mechanism of heat exchanging pipe 4 is：The fuel combustion of burner hearth 1 produces high-temperature flue gas, through the heat external of heating coil 41 that exchanges heat
Fluid, heat exchanging fluid is used to heat, after be delivered to heat transfer flue 42, the first economizer bank 31 in heating heat transfer flue 42 makes
Inner air initial heat, then pumps to the external world through blower fan 2.
Preheating the working mechanism of pipeline 3 is：Outside air is pumped into the first economizer bank 31 under suction function, through heat transfer flue 42
Preliminary preheating；After be input into the second economizer bank 32, through two grades of fluid preheating in fluid heat transfer set 6；Enter the 3rd economizer bank 33, profit afterwards
Hot-air is directly heated with the fuel combustion heat of burner hearth 1；High temperature air is finally delivered to the bottom of burner hearth 1, and rise with
Fuel catalytic combustion, heat release simultaneously produces high-temperature flue gas, into heat exchanging pipe 4.
The fluid heat transfer set 6 includes water delivery nozzle 61 and water return outlet 62, and the heat exchange heating coil 41 is wrapped in the fluid and changes
In the top of hot jacket 6, second economizer bank 32 is wrapped in the fluid heat transfer and covers in 6 bottoms, and the water return outlet 62 is arranged at institute
The top of heat exchange heating coil 41 is stated, the water delivery nozzle 61 is arranged on heat exchange heating coil 41 and the place horizontal plane of second economizer bank 32
Between.The structure setting is conducive to the steps intensification of air, and the flue gas heat exchanged heat in heating coil 41 can be preferentially used for confession
Warm fluid is heated, and promotes backflow, it is ensured that heating temperature.The fluid is water.
The bottom of the burner hearth 1 is provided with ash comb 11, and the grey castor 11 is arranged with electrothermal tube 12.The grey castor 11 can be kept away
Exempt from lower section electrothermal tube 12 to be covered by ashes, improve electric heating and ignite efficiency, and facilitate the electrothermal tube 12 to extract maintenance out.The electricity
The outer layer of heat pipe 12 is quartz ampoule, includes carbon fiber heating silk.
It is alternate with the 3rd economizer bank 33 to be wound with hot-water line 51 in heat-insulation preheating layer 5 outside the burner hearth 1.
The primary heat that the hot-water line 51 can be produced using burner hearth fuel combustion is heated, for boiling water or producing high temperature
Steam.
Above with reference to preferred embodiment, invention has been described, but protection scope of the present invention is not restricted to
This, any all technical schemes for falling within the scope of the appended claims are within the scope of the present invention.This hair is not being departed from
In the case of bright scope, various improvement can be carried out to it and part therein can be replaced with equivalent.Especially, only
Otherwise there is structural hazard, the every technical characteristic being previously mentioned in each embodiment can combine in any way.
Claims (5)
1. a kind of negative pressure is ignited heat exchange preheating device, it is characterised in that including burner hearth, blower fan, preheating pipeline and heat exchanging pipe, institute
State and be provided with outside burner hearth heat-insulation preheating layer and fluid heat transfer set, the heat-insulation preheating layer is arranged at the burner hearth and the fluid is changed
Between hot jacket, the heat exchanging pipe is tightly connected with the blower fan and the burner hearth respectively, it is described preheating pipeline respectively with it is described
Burner hearth is connected with the external world；
The heat exchanging pipe includes heat exchange heating coil and heat transfer flue, and the heat exchange heating coil is arranged in the fluid heat transfer set, and
Front end connects with the upper furnace, and end connects with the heat transfer flue；The heat transfer flue end is connected with the blower fan；
The preheating pipeline includes first, second, and third economizer bank, and the 3rd economizer bank is wrapped in the guarantor outside the burner hearth
In warm preliminary heating zone, and end connects with the lower furnace portion, and front end connects with second economizer bank；Second economizer bank is twined
It is wound in the fluid heat transfer set and front end connects with first economizer bank；First economizer bank is set in the heat exchange cigarette
In road and it is in communication with the outside.
2. device according to claim 1, it is characterised in that：The fluid heat transfer set includes water delivery nozzle and water return outlet, institute
State heat exchange heating coil to be wrapped in the fluid heat transfer set top, second economizer bank is wrapped in the fluid heat transfer set bottom
Interior, the water return outlet is arranged at the heat exchange heating coil top, and it is pre- with described second that the water delivery nozzle is arranged on the heat exchange heating coil
Between horizontal plane where heat pipe.
3. device according to claim 1 and 2, it is characterised in that：The lower furnace portion is provided with grey comb, under the grey castor
It is provided with electrothermal tube.
4. device according to claim 3, it is characterised in that：The electric heating outer tube layer is quartz ampoule, and interior carbon fiber-containing adds
Heated filament.
5. device according to claim 1, it is characterised in that：It is and described in heat-insulation preheating layer outside the burner hearth
3rd economizer bank is alternate to be wound with hot-water line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611182354.8A CN106765284B (en) | 2016-12-20 | 2016-12-20 | Negative pressure ignition heat exchange preheating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611182354.8A CN106765284B (en) | 2016-12-20 | 2016-12-20 | Negative pressure ignition heat exchange preheating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106765284A true CN106765284A (en) | 2017-05-31 |
| CN106765284B CN106765284B (en) | 2023-09-05 |
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ID=58889407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611182354.8A Active CN106765284B (en) | 2016-12-20 | 2016-12-20 | Negative pressure ignition heat exchange preheating device |
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| Country | Link |
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| CN (1) | CN106765284B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107345657A (en) * | 2017-08-18 | 2017-11-14 | 德清县德沃工业设备安装有限公司 | A kind of water storage device of steam generator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4364514A (en) * | 1978-10-25 | 1982-12-21 | Toporek John R | Heat-recovering apparatus for furnaces |
| US6270542B1 (en) * | 1999-10-15 | 2001-08-07 | Harry E. Naylor | Home and industrial heating furnace that produces fuel gas |
| CN202303872U (en) * | 2011-11-09 | 2012-07-04 | 梁才 | Smoke prevention and dust control assembled type heat pipe hot-air heating stove |
| CN105889971A (en) * | 2016-05-19 | 2016-08-24 | 温岭市百然机械有限公司 | Burner preheating air through smoke and application method thereof |
| CN205782935U (en) * | 2016-05-19 | 2016-12-07 | 温岭市百然机械有限公司 | Utilize the burner of smoke pre-heating air |
| CN206269163U (en) * | 2016-12-20 | 2017-06-20 | 青岛极致节能环保有限公司 | A kind of negative pressure is ignited heat exchange preheating device |
-
2016
- 2016-12-20 CN CN201611182354.8A patent/CN106765284B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4364514A (en) * | 1978-10-25 | 1982-12-21 | Toporek John R | Heat-recovering apparatus for furnaces |
| US6270542B1 (en) * | 1999-10-15 | 2001-08-07 | Harry E. Naylor | Home and industrial heating furnace that produces fuel gas |
| CN202303872U (en) * | 2011-11-09 | 2012-07-04 | 梁才 | Smoke prevention and dust control assembled type heat pipe hot-air heating stove |
| CN105889971A (en) * | 2016-05-19 | 2016-08-24 | 温岭市百然机械有限公司 | Burner preheating air through smoke and application method thereof |
| CN205782935U (en) * | 2016-05-19 | 2016-12-07 | 温岭市百然机械有限公司 | Utilize the burner of smoke pre-heating air |
| CN206269163U (en) * | 2016-12-20 | 2017-06-20 | 青岛极致节能环保有限公司 | A kind of negative pressure is ignited heat exchange preheating device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107345657A (en) * | 2017-08-18 | 2017-11-14 | 德清县德沃工业设备安装有限公司 | A kind of water storage device of steam generator |
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| Publication number | Publication date |
|---|---|
| CN106765284B (en) | 2023-09-05 |
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