CN211011412U - Waste heat furnace tail flue gas waste heat utilization system - Google Patents
Waste heat furnace tail flue gas waste heat utilization system Download PDFInfo
- Publication number
- CN211011412U CN211011412U CN201921438823.7U CN201921438823U CN211011412U CN 211011412 U CN211011412 U CN 211011412U CN 201921438823 U CN201921438823 U CN 201921438823U CN 211011412 U CN211011412 U CN 211011412U
- Authority
- CN
- China
- Prior art keywords
- flue gas
- waste heat
- utilization system
- air preheater
- overgrate air
- 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.)
- Active
Links
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 81
- 239000003546 flue gas Substances 0.000 title claims abstract description 81
- 239000002918 waste heat Substances 0.000 title claims abstract description 50
- 238000006243 chemical reaction Methods 0.000 claims abstract description 10
- 238000009530 blood pressure measurement Methods 0.000 claims abstract description 6
- 238000004321 preservation Methods 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000004880 explosion Methods 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 5
- 238000004056 waste incineration Methods 0.000 abstract description 4
- 239000000779 smoke Substances 0.000 description 9
- 239000010813 municipal solid waste Substances 0.000 description 8
- 238000009413 insulation Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Air Supply (AREA)
Abstract
The utility model provides a waste heat stove afterbody flue gas waste heat utilization system, this system connect after waste heat stove export flue, include flue gas draught fan (1), overgrate air preheater (4) and flue gas forced draught blower (7) in proper order, the pipeline exit of flue gas draught fan (1) sets up first temperature pressure measurement component (2) to set up flue gas inlet valve (3), flue gas inlet valve rear end is connected overgrate air preheater (4), the pipeline exit of overgrate air preheater set up flue gas outlet valve (5) and second temperature pressure measurement component (6), are connected with the deacidification reaction tower of msw incineration system through flue gas forced draught blower (7) at last. The utility model discloses a waste heat of afterbody flue gas is recycled among the waste incineration process waste heat stove, utilizes the waste heat of afterbody flue gas to heat the overgrate air for the boiler, reduces the steam turbine and takes out the vapour, improves the generated energy, avoids heat waste, energy saving, reduces the influence of flue gas to the environment again when increasing the thermal efficiency.
Description
Technical Field
The utility model belongs to the technical field of energy-saving equipment, in particular to waste heat stove afterbody flue gas waste heat utilization system.
Background
With the continuous development of society and the continuous improvement of people's living standard, the treatment of municipal solid waste becomes a big problem in the current society, the current main treatment means in China is waste incineration or waste landfill treatment, but the current land and waste amount make the waste landfill scheme difficult to meet the current requirements, so the waste incineration treatment technology needs to be perfected and more widely applied.
Along with the acceleration of the urbanization process, the domestic garbage treatment demand keeps increasing rapidly, the garbage clearing and transporting quantity continuously increases, and the treatment capacity is relatively insufficient. The urbanization rate of China is increased from 42.99% to 58.52% in 2005-2017, and the rapid development of urbanization and the increasing improvement of the living standard of people enable the cleaning amount of domestic garbage in cities and towns of China to continuously and rapidly increase. According to the novel township program of China, the township rate is improved to about 60% by 2020. Along with the continuous advancement of urbanization and the promotion of the improvement of the living standard of people, the generation and the clearing amount of urban domestic garbage are expected to be continuous.
In terms of the harmless treatment of the household garbage, if a county and a town or a rural area with a lower harmless treatment rate is considered, the number of the historical stockpiling amount of the household garbage in the town is more huge. The pressure of the current refuse surrounding city is relieved, the living environment of urban people is improved, the construction investment of harmless treatment facilities is increased, and the requirement is inevitable, so that a wide space is brought for the development of a refuse treatment market.
Flue gas treatment is a big processing problem always among the msw incineration, and tail gas temperature is generally about 190 ℃ in the waste heat stove, and this part tail gas temperature generally all is difficult to utilize, and it is unsatisfactory to high temperature flue gas treatment effect to follow-up deacidification reaction tower, so the waste heat to the tail gas is being considered and is being utilized, improves heat exchange efficiency, more utilization heat.
Disclosure of Invention
To the current situation that has not carried out the utilization to the afterbody flue gas in the msw incineration production technology that above-mentioned exists, the utility model discloses a waste heat that utilizes the afterbody flue gas carries out the waste heat to the boiler overgrate air, effectively reduces the influence of steam turbine steam extraction to the generated energy, provides a waste heat stove afterbody flue gas waste heat utilization system.
The utility model aims at going on through following technical scheme:
the utility model provides a waste heat stove afterbody flue gas waste heat utilization system, this system connect behind waste heat stove export flue, wherein, the system includes flue gas draught fan, overgrate air preheater and flue gas forced draught blower in proper order, the pipeline exit of flue gas draught fan sets up first temperature pressure measurement component to set up flue gas inlet valve, flue gas inlet valve rear end is connected overgrate air preheater, overgrate air preheater's pipeline exit sets up flue gas outlet valve and second temperature pressure measurement component, is connected with the deacidification reaction tower of msw incineration system through the flue gas forced draught blower at last.
Furthermore, all pipelines, a smoke induced draft fan and a smoke blower in the system are subjected to anticorrosion and explosion-proof treatment.
Furthermore, all pipelines in the system are subjected to external heat insulation treatment by wrapping heat insulation cotton.
Further, the flue gas inlet valve and the flue gas outlet valve are both electrically operated valves.
The utility model discloses compare prior art's beneficial effect does:
1. the waste heat furnace tail flue gas waste heat utilization system realizes the waste heat recycling of tail flue gas in a waste heat furnace in the waste incineration process, utilizes the waste heat of the tail flue gas to heat secondary air for a boiler, reduces the steam extraction of a steam turbine, improves the generated energy, avoids heat waste, saves energy, improves the thermal efficiency, and reduces the influence of the flue gas on the environment;
2. in the waste heat furnace tail flue gas waste heat utilization system, all pipelines and motors are subjected to corrosion-resistant and explosion-proof treatment, so that the corrosive influence of the tail flue gas of the waste heat furnace is avoided, and meanwhile, all pipelines are subjected to external heat preservation treatment, so that maintainers are prevented from being injured due to contact;
3. waste heat stove afterbody flue gas waste heat utilization system, reduced the temperature that gets into deacidification reaction tower flue gas, improved reaction efficiency, reduced the influence of flue gas to the environment.
Drawings
FIG. 1 is the structure schematic diagram of the waste heat utilization system of the tail flue gas of the waste heat furnace.
Detailed Description
As shown in fig. 1, this embodiment provides a waste heat stove afterbody flue gas waste heat utilization system, and this system connects after waste heat stove export flue, wherein, the system includes flue gas draught fan 1, overgrate air preheater 4 and flue gas forced draught blower 7 in proper order, the pipeline exit of flue gas draught fan 1 sets up first temperature pressure measuring element 2 to set up flue gas inlet valve 3, the connection of flue gas inlet valve 3 rear end overgrate air preheater 4, overgrate air preheater 4's pipeline exit sets up flue gas outlet valve 5 and second temperature pressure measuring element 6, is connected with the deacidification reaction tower of msw incineration system through flue gas forced draught blower 7 at last.
All pipelines, a smoke induced draft fan and a smoke blower in the system are subjected to anticorrosion and explosion-proof treatment; all pipelines in the system are subjected to external heat insulation treatment by wrapping heat insulation cotton; the smoke inlet valve and the smoke outlet valve are electrically operated valves.
The application process of the waste heat utilization system for the tail flue gas of the waste heat furnace is as follows:
1) a pipeline is added in an outlet flue of the waste heat furnace, and the flue gas is led out by a flue gas induced draft fan 1;
2) a first temperature and pressure element 2 is arranged at the outlet of a flue gas induced draft fan pipeline for measurement, and a flue gas inlet valve 3 is arranged;
3) the flue gas is led out by a flue gas induced draft fan and then is conveyed to a flue gas inlet of a secondary air preheater 4 through a pipeline, and the flue gas pipeline needs to be subjected to corrosion prevention, explosion prevention and heat preservation treatment;
4) the introduced flue gas is subjected to heat exchange in a secondary air preheater 4, and after secondary air is preheated, the flue gas is led out from an outlet of a secondary air preheater;
5) a second temperature and pressure element 6 is arranged at the outlet of the secondary air preheater 4 for measurement;
6) a flue gas outlet valve 5 is arranged on the flue gas pipeline, and a flue gas blower 7 is arranged on the side close to the hearth;
7) the flue gas is sent back to the deacidification reaction tower by the flue gas blower 7, and is mixed with the unused flue gas and then enters the deacidification reaction tower for treatment.
The flue gas temperature and pressure measuring device is arranged on a pipeline, and data signals are transmitted to a Distributed Control System (DCS) for data monitoring; valves in the system are all electric valves, can also be controlled by a DCS, and are opened and closed according to temperature and pressure data; each smoke fan is controlled by frequency conversion, the smoke amount is controlled according to the secondary air consumption and the temperature, specifically, when the heat value of garbage is low, the smoke extraction amount is adjusted, and other heat sources are used for secondary air preheating; the DCS monitors the equipment, and realizes the start-stop operation and the fault alarm of the process. Automatic, local and remote DCS control interlocking; the electric valves are all integrated valves with electric actuating mechanisms, and the electric actuating mechanisms receive 4-20 mA signals.
Claims (5)
1. The utility model provides a waste heat stove afterbody flue gas waste heat utilization system, this system connect after waste heat stove export flue, a serial communication port, the system includes flue gas draught fan (1), overgrate air preheater (4) and flue gas forced draught blower (7) in proper order, the pipeline exit of flue gas draught fan (1) sets up first temperature pressure measurement component (2) to set up flue gas inlet valve (3), flue gas inlet valve rear end is connected overgrate air preheater (4), the pipeline exit of overgrate air preheater set up flue gas outlet valve (5) and second temperature pressure measurement component (6), are connected with the deacidification reaction tower of msw incineration system through flue gas forced draught blower (7) at last.
2. The waste heat furnace tail flue gas waste heat utilization system of claim 1, characterized in that all pipelines in the system are subjected to corrosion and explosion prevention treatment.
3. The waste heat utilization system for the tail flue gas of the waste heat furnace as claimed in claim 1, wherein the flue gas induced draft fan (1) and the flue gas blower (7) are both subjected to corrosion-resistant and explosion-proof treatment.
4. The waste heat furnace tail flue gas waste heat utilization system of claim 1 or 2, characterized in that all pipelines in the system are subjected to external heat preservation treatment by wrapping heat preservation cotton.
5. The waste heat utilization system for the flue gas at the tail part of the waste heat furnace as claimed in claim 1, wherein the flue gas inlet valve (3) and the flue gas outlet valve (5) are both electrically operated valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921438823.7U CN211011412U (en) | 2019-09-02 | 2019-09-02 | Waste heat furnace tail flue gas waste heat utilization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921438823.7U CN211011412U (en) | 2019-09-02 | 2019-09-02 | Waste heat furnace tail flue gas waste heat utilization system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211011412U true CN211011412U (en) | 2020-07-14 |
Family
ID=71474779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921438823.7U Active CN211011412U (en) | 2019-09-02 | 2019-09-02 | Waste heat furnace tail flue gas waste heat utilization system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211011412U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114811619A (en) * | 2022-05-04 | 2022-07-29 | 江西南方锅炉股份有限公司 | Steam boiler system for combusting yellow phosphorus tail gas and control method thereof |
-
2019
- 2019-09-02 CN CN201921438823.7U patent/CN211011412U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114811619A (en) * | 2022-05-04 | 2022-07-29 | 江西南方锅炉股份有限公司 | Steam boiler system for combusting yellow phosphorus tail gas and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204630092U (en) | A kind of energy-conservation anaerobic reaction device | |
| CN202361822U (en) | Flue gas treatment and waste heat generation system with rotary hearth furnace | |
| CN211011412U (en) | Waste heat furnace tail flue gas waste heat utilization system | |
| CN106090864A (en) | A kind of biomass steam boiler system | |
| CN205690895U (en) | The comprehensive UTILIZATION OF VESIDUAL HEAT IN of coke oven underground flue gas and except white haze device | |
| CN215260017U (en) | Solar hydrogen production coupling flue gas thermal mass comprehensive utilization system | |
| CN201241110Y (en) | Energy-saving environment protection processing device of gas furnace for producing water gas | |
| CN201348262Y (en) | Garbage furnace waste heat recycling device | |
| CN101498555A (en) | Residual heat utilization process for sintering ring-cooling machine | |
| CN109140492B (en) | Boiler smoke-wind coupling waste heat recovery system | |
| CN204373432U (en) | A kind of flue gas waste heat recovery apparatus | |
| CN203286573U (en) | Salty waste water burning system | |
| CN210568381U (en) | Novel ash conveying and waste heat recovery device for biomass circulating fluidized bed boiler separator | |
| CN201666738U (en) | Pre-heated one section waste flue gas afterheat utilizing system of pellet grate machine | |
| CN210088808U (en) | Landfill gas power generation waste heat utilization system | |
| CN202157087U (en) | High-efficiency electric furnace steel making system | |
| CN213645343U (en) | Flue gas heat source garbage fermentation heating system | |
| CN217714930U (en) | Garbage storehouse temperature raising waste heat utilization system | |
| CN205382133U (en) | System for combustion -supporting direct combustion boiler technology of living beings pyrolysis gas | |
| CN201488567U (en) | Energy-saving device utilizing smoke of kiln for supplying heat to spray tower | |
| CN201273570Y (en) | Two combustion chambers of electric-heating pre-heating type incineration furnace | |
| CN217979790U (en) | AOD furnace and submerged arc furnace combined power generation system | |
| CN216919150U (en) | Combined heat and power system of household garbage biomass pyrolysis gasification furnace | |
| CN215676587U (en) | Boiler waste heat recycling device | |
| CN217714876U (en) | Steam recovery system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |