CN113915635A - Boiler flue gas treatment system with high-efficient air heater - Google Patents
Boiler flue gas treatment system with high-efficient air heater Download PDFInfo
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- CN113915635A CN113915635A CN202111384595.1A CN202111384595A CN113915635A CN 113915635 A CN113915635 A CN 113915635A CN 202111384595 A CN202111384595 A CN 202111384595A CN 113915635 A CN113915635 A CN 113915635A
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 239000003546 flue gas Substances 0.000 title claims abstract description 66
- 239000000428 dust Substances 0.000 claims abstract description 17
- 239000000779 smoke Substances 0.000 claims abstract description 11
- 238000005192 partition Methods 0.000 claims description 16
- 238000005338 heat storage Methods 0.000 claims description 12
- 238000012546 transfer Methods 0.000 claims description 11
- 238000006477 desulfuration reaction Methods 0.000 claims description 8
- 230000023556 desulfurization Effects 0.000 claims description 8
- 238000010521 absorption reaction Methods 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- BIGPRXCJEDHCLP-UHFFFAOYSA-N ammonium bisulfate Chemical compound [NH4+].OS([O-])(=O)=O BIGPRXCJEDHCLP-UHFFFAOYSA-N 0.000 abstract description 15
- 238000007789 sealing Methods 0.000 abstract description 5
- 238000009825 accumulation Methods 0.000 abstract 1
- 239000002956 ash Substances 0.000 description 16
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 description 4
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 239000012717 electrostatic precipitator Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004071 soot Substances 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
- F23J3/02—Cleaning furnace tubes; Cleaning flues or chimneys
-
- 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
-
- 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 boiler flue gas treatment system with a high-efficiency air preheater, which belongs to the technical field of boiler flue gas treatment and preparation and solves the problems that a treatment system in the prior art is easy to generate ammonium bisulfate blockage, dust accumulation and air leakage. According to the invention, the smoke air heater is added in the smoke treatment system, the air temperature at the inlet of the air preheater is increased, the blockage of ammonium bisulfate is avoided, the acoustic wave ash remover is arranged in the air preheater, the blockage of ammonium bisulfate in the shell is effectively removed, the rotating speed of the shell is changed in real time, so that dust and dirt cannot be accumulated in the shell, and the problem of air leakage caused by the deformation of the shell is avoided by using the flexible sealing component.
Description
Technical Field
The invention belongs to the technical field of boiler flue gas treatment, and particularly relates to a boiler flue gas treatment system with a high-efficiency air preheater.
Background
The boiler flue gas processing system of thermal power plant need adopt rotary air heater to realize former flue gas cooling usually, because the requirement is forced to national environmental protection policy, current thermal power unit all need set up flue gas denitrification facility, need spout proper excess ammonia, the ammonium bisulfate that forms from this can form the scale deposit that is difficult to clear away in air heater, rotary air heater exists the air leakage simultaneously and leads to cold wind to leak into the flue gas, causes low temperature corrosion, scale deposit and blocks up.
Disclosure of Invention
The invention aims to provide a boiler flue gas treatment system with a high-efficiency air preheater, which can prevent ammonium bisulfate from being blocked, has good ash removal effect and can prevent air leakage, aiming at the defects in the prior art.
In order to realize the technical purpose, the boiler flue gas treatment system with the efficient air preheater adopts the technical scheme that:
a boiler flue gas treatment system with a high-efficiency air preheater comprises an SCR denitration reactor, an air preheater, a flue gas air heater, an electrostatic precipitator and a desulfurization absorption tower which are connected in sequence, wherein the air outlet of the air preheater is connected in parallel to form two divided ends, one end of the air outlet flows back to a boiler, the other end of the air outlet is communicated with the inlet of the flue gas air heater, and the outlet of the flue gas air heater also flows back to the air inlet of the air preheater;
the air preheater comprises a shell, a rotating shaft arranged in the middle of the shell and a rotor sleeved on the periphery of the rotating shaft, wherein a partition plate is connected in the radial direction of the rotor, the partition plate divides the interior of the shell into a plurality of heat storage areas, a heat transfer element is arranged in each heat storage area, the shell comprises a hot end and a cold end which are oppositely arranged from top to bottom, the hot end comprises a flue gas inlet, a first air outlet and a second air outlet, the surface of the first air outlet is provided with a first sound wave ash removal component with a port facing the inner cavity of the air preheater, the cold end comprises a flue gas outlet, a first air inlet and a second air inlet, the surface of the first air inlet is provided with a second sound wave ash removal component with a port facing the inner cavity of the air preheater, the first sound wave ash removal component and the second sound wave ash removal component respectively comprise C-shaped covers with ports bent towards the shell, and the lower ends of the C-shaped covers are divided into a plurality of arc-shaped slideways through the partition plate, the port of the slideway is provided with an acoustic dust collector arranged on the bottom wall of the C-shaped cover, the plurality of slideways are bent and respectively correspond to the heat storage areas, and the bending length of the adjacent slideways is set as the difference of the circumferences of the adjacent heat storage areas;
the inside flexible seal assembly who prevents its hourglass of still being equipped with of casing, flexible seal assembly includes that the ring locates the casing first magnetic pole of diapire, the second magnetic pole that repels mutually with first magnetic pole and the mounting bracket of installation second magnetic pole, the mounting bracket is including setting up in the mount pad at baffle top, mount pad one end is equipped with the fixed plate, and the other end articulates there is the dwang, fixed plate surface fixed connection second magnetic pole, dwang end connection has the magnetic seal wheel that attracts mutually with first magnetic pole, the magnetic seal wheel embedded in the storage tank that the diapire was seted up on the casing.
Preferably, fan-shaped plates are arranged between the shell hot end smoke inlet and the first air outlet, between the first air outlet and the second air outlet, between the shell cold end smoke outlet and the first air inlet, and between the first air inlet and the second air inlet.
Preferably, the casing cold junction is equipped with the temperature sensor of monitoring exit temperature, temperature sensor and controller electric connection, and the controller still controls the driving motor's that is connected with the pivot transmission rotational speed.
Preferably, the controller also controls the sound wave frequency of the sound wave dust remover.
Preferably, a flue gas channel is formed between the flue gas inlet and the flue gas outlet, a first air duct is formed between the first air inlet and the first air outlet, and a second air duct is formed between the second air inlet and the second air outlet.
Preferably, the first acoustic wave ash removal component and the second acoustic wave ash removal component are arranged at the hot end and the cold end of the shell in a left-right overturning manner.
Preferably, the inlet of the SCR denitration reactor is communicated with the outlet of the boiler.
Preferably, the inlet end of the flue gas air heater is connected with an air feeder, and a dry combustion partition door is arranged between the air feeder and the flue gas air heater.
Preferably, an induced draft fan is arranged between the electrostatic precipitator and the desulfurization absorption tower.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the flue gas air heater is added in the flue gas treatment system, and the flue gas air heater is utilized to greatly increase the inlet air temperature of the air preheater, so that the wall temperature of the heat exchange plate is increased, the blockage of ammonium bisulfate is avoided, the exhaust gas temperature is reduced, and the waste heat recovery is realized;
2. according to the invention, the sound wave ash remover is arranged in the air preheater, ammonium bisulfate blockage in the shell is effectively removed by using the sound wave ash remover, the temperature sensor is combined with the two air inlets and the air outlets, the rotating speed of the shell is changed in real time, so that dust and dirt cannot be accumulated on the surfaces of the partition plate, the heat transfer element and the like in the shell, and the heat transfer effect is ensured;
3. according to the invention, the flexible sealing assembly is arranged in the shell, so that the deformation of the shell caused by heating is relieved, and the problem of air leakage caused by the deformation of the shell is avoided.
Drawings
FIG. 1 is a schematic diagram of the system architecture of the present invention;
FIG. 2 is a schematic diagram of an air preheater according to the present invention;
FIG. 3 is another schematic view of an air preheater according to the present invention;
FIG. 4 is a schematic view of the first and second acoustic ash assemblies of the present invention;
FIG. 5 is a schematic view of the construction of the flexible seal assembly of the present invention.
In the figure: an SCR denitration reactor; 2. an air preheater; 3. a flue gas air heater; 4. an electrostatic precipitator; 5. a desulfurization absorption tower; 6. a boiler; 7. a blower; 8. a dry-fire partition door; 9. an induced draft fan; 20. a housing; 21. a rotating shaft; 22. a rotor; 23. a partition plate; 201. a flue gas inlet; 202. a first air outlet; 203. a second air outlet; 204. a flue gas outlet; 205. a first air inlet; 206. a second air inlet; 207. C-shaped cover; 208. a slideway; 209. an acoustic wave dust collector; 210. a first magnetic pole; 211. a second magnetic pole; 212. a fixing plate; 213. rotating the rod; 214. a magnetic seal wheel; 215. a sector plate.
Detailed Description
The invention will be further described with reference to the following drawings and detailed description:
in the boiler flue gas desulfurization denitration treatment process, when air heater blockked up seriously, the whole operating efficiency of system is low, and its reason lies in: sulfur trioxide and water vapor in the flue gas are combined to generate sulfuric acid steam, the concentration is higher, the acid dew point of the flue gas is higher and can reach 140-160 ℃ or even higher, the lowest inlet air temperature enables the lowest metal wall temperature of a heat exchange plate to be always lower than the acid dew point temperature, low-temperature corrosion is inevitable, meanwhile, in order to ensure denitration efficiency, excessive ammonia is sprayed, ammonia and sulfur trioxide generate ammonium bisulfate, ammonium bisulfate crystals are formed on the metal surface with the wall temperature lower than 147 ℃, fly ash is adsorbed by the crystals, conventional steam soot blowing is difficult to effectively remove, soot blockage of an air preheater causes the increase of flow resistance of the flue gas and air, the increase of power consumption of three fans, the reduction of heat exchange efficiency and the increase of exhaust gas temperature, and further causes the boiler to reach the load limit or even be forced to stop, so only the inlet air temperature is increased, the wall temperature of the heat exchange plate is increased, and the gasification rate of the ammonium bisulfate on the surface of the heat exchange plate in a high-temperature flue gas area is higher than the condensation rate, the blockage of ammonium bisulfate can be completely eliminated, but ammonium bisulfate carried by flue gas with the temperature higher than 147 ℃ can be secondarily condensed on the metal surface with the temperature lower than 147 ℃ to form new blockage.
As shown in fig. 1-5, a boiler flue gas treatment system with a high-efficiency air preheater comprises an SCR denitration reactor 1, an air preheater 2, a flue gas air heater 3, an electrostatic dust collector 4 and a desulfurization absorption tower 5 which are connected in sequence, wherein an inlet of the SCR denitration reactor 1 is communicated with an outlet of a boiler 6, an air outlet of the air preheater 2 is connected in parallel to form two divided ends, one end of the air outlet flows back to the boiler 6, the other end of the air outlet is communicated with an inlet of the flue gas air heater 3, and an outlet of the flue gas air heater 3 also flows back to an air inlet of the air preheater 2;
the air preheater 2 comprises a casing 20, a rotating shaft 21 arranged in the middle of the casing 20 and a rotor 22 sleeved on the periphery of the rotating shaft 21, wherein a partition plate 23 is connected in the radial direction of the rotor 22, the inside of the casing 20 is divided into a plurality of heat storage areas by the partition plate 23, a heat transfer element is arranged in each heat storage area, the casing 20 comprises a hot end and a cold end which are oppositely arranged up and down, the hot end comprises a flue gas inlet 201, a first air outlet 202 and a second air outlet 203, a first sound wave ash removing component with a port facing the inner cavity of the air preheater 2 is arranged on the surface of the first air outlet 202, the cold end comprises a flue gas outlet 204, a first air inlet 205 and a second air inlet 206, and fan-shaped plates 215 are respectively arranged between the flue gas inlet 201 and the first air outlet 202, between the first air outlet 202 and the second air outlet 203, between the flue gas outlet 204 and the first air inlet 205 and the cold end of the casing 20, and between the first air inlet 205 and the second air inlet 206, the surface of the first air inlet 205 is provided with a second acoustic wave ash removal component with a port facing the inner cavity of the air preheater 2, the first acoustic wave ash removal component and the second acoustic wave ash removal component are arranged at the hot end and the cold end of the shell 20 in a left-right overturning manner, the first acoustic wave ash removal component and the second acoustic wave ash removal component respectively comprise a C-shaped cover 207 with a port bent towards the shell 20, the lower end of the C-shaped cover 207 is divided into a plurality of arc-shaped slideways 208 through partition plates, the ports of the slideways 208 are provided with acoustic wave dust collectors 209 arranged at the bottom walls of the C-shaped cover 207, the slideways 208 are respectively corresponding to the heat storage areas after being bent, and the bending length of each adjacent slideway 208 is set as the difference of the circumferences of the adjacent heat storage areas;
casing 20 is inside still to be equipped with the flexible seal assembly who prevents its hourglass, flexible seal assembly is including the ring locate casing 20 go up the first magnetic pole 210 of diapire, with the second magnetic pole 211 that first magnetic pole 210 repels mutually and install the mounting bracket of second magnetic pole 211, the mounting bracket is including setting up in the mount pad at baffle 23 top, mount pad one end is equipped with fixed plate 212, and the other end articulates there is dwang 213, fixed plate 212 fixed surface connection second magnetic pole 211, dwang 213 end connection has the magnetism sealing wheel 214 that attracts mutually with first magnetic pole 210, magnetism sealing wheel 214 embedded in the storage tank that casing 20 goes up the diapire and sets up.
According to the invention, the air heater greatly increases the inlet air temperature of the air preheater, but because the wall temperature of a heat exchange tube of the air heater is lower than the crystallization temperature of ammonium bisulfate, the outlet flue gas temperature of the air preheater is inevitably increased after the inlet air temperature is increased, high-temperature flue gas inevitably carries ammonium bisulfate, and the wall of the heat exchange tube of which the temperature is lower than 147 ℃ of ammonium bisulfate is secondarily condensed to form new blockage.
The cold junction of casing 20 is equipped with the temperature sensor of monitoring exit temperature, and temperature sensor and controller electric connection, the controller still control with the pivot 21 transmission be connected driving motor's rotational speed, the controller still controls the sound wave frequency of sound wave dust remover 209. The temperature sensor is used for monitoring the temperature of the cold end in real time, so that the rotating speed of the rotor 22 can be adjusted conveniently in time, and dirt generated after the rotating speed of the rotor 22 is reduced can be removed quickly by combining the sound wave dust collector 209.
A flue gas channel is formed between the flue gas inlet 201 and the flue gas outlet 204, a first air duct is formed between the first air inlet 205 and the first air outlet 202, and a second air duct is formed between the second air inlet 206 and the second air outlet 203.
The inlet end of the flue gas air heater 3 is connected with an air feeder 7, a dry combustion partition door 8 is arranged between the air feeder 7 and the flue gas air heater 3, and an induced draft fan 9 is arranged between the electrostatic dust collector 4 and the desulfurization absorption tower 5. Through setting up forced draught blower 7 and draught fan 9, impel the flue gas to flow fast, improve boiler flue gas treatment effeciency.
When the temperature sensor continuously monitors the temperature of the cold end of the shell 20, when the temperature sensor detects that the surface temperature of the heat transfer element is lower than 147 ℃, the temperature sensor sends an electric signal to the controller, the controller increases the rotating speed of the driving motor, the rotating speed of the rotor 22 is increased accordingly, the residence time of the heat transfer element in the shell 20 in the first air channel and the second air channel is shortened, and therefore the temperature of the heat transfer element is gradually increased until the lowest temperature of the cold end of the rotor 22 exceeds 147 ℃, and the rotating speed is kept to rotate; when the temperature sensor detects that the surface temperature of the heat transfer element is higher than 147 ℃, the temperature sensor sends an electric signal to the controller, the controller reduces the rotating speed of the driving motor, the rotating speed of the rotor 22 is reduced, the temperature of the heat transfer element in the shell 20 is gradually reduced, and meanwhile, the acoustic wave dust remover 209 is started, and as the end parts of the acoustic wave dust remover 209 are provided with the plurality of slideways 208, the acoustic wave distribution fluidization is realized, and the dirt on the surface of the heat transfer element in the shell 20 is effectively removed; in the rotation process of the rotor 22, the fixing plate 212 and the partition plate are tightly pressed by utilizing the mutual repulsion between the first magnetic pole 210 and the second magnetic pole 211, the magnetic sealing wheel 214 freely rotates while keeping tight connection in the accommodating groove, the deformation caused by the heating of the shell 20 is eliminated, the air leakage of the shell 20 is avoided, and the problem of reducing the operation capacity of the unit is solved.
Therefore, the invention is not to be limited to the specific embodiments, but rather, all equivalent changes and modifications in the shapes, structures, characteristics and spirit of the invention are intended to be included within the scope of the appended claims.
Claims (9)
1. The utility model provides a boiler flue gas processing system with high-efficient air heater which characterized in that: the system comprises an SCR denitration reactor, an air preheater, a flue gas air heater, an electrostatic dust collector and a desulfurization absorption tower which are sequentially connected, wherein an air outlet of the air preheater is connected in parallel to form two divided ends, one end of the air outlet flows back to a boiler, the other end of the air outlet is communicated with an inlet of the flue gas air heater, and an outlet of the flue gas air heater also flows back to an air inlet of the air preheater;
the air preheater comprises a shell, a rotating shaft arranged in the middle of the shell and a rotor sleeved on the periphery of the rotating shaft, wherein a partition plate is connected in the radial direction of the rotor, the partition plate divides the interior of the shell into a plurality of heat storage areas, a heat transfer element is arranged in each heat storage area, the shell comprises a hot end and a cold end which are oppositely arranged from top to bottom, the hot end comprises a flue gas inlet, a first air outlet and a second air outlet, the surface of the first air outlet is provided with a first sound wave ash removal component with a port facing the inner cavity of the air preheater, the cold end comprises a flue gas outlet, a first air inlet and a second air inlet, the surface of the first air inlet is provided with a second sound wave ash removal component with a port facing the inner cavity of the air preheater, the first sound wave ash removal component and the second sound wave ash removal component respectively comprise C-shaped covers with ports bent towards the shell, and the lower ends of the C-shaped covers are divided into a plurality of arc-shaped slideways through the partition plate, the port of the slideway is provided with an acoustic dust collector arranged on the bottom wall of the C-shaped cover, the plurality of slideways are bent and respectively correspond to the heat storage areas, and the bending length of the adjacent slideways is set as the difference of the circumferences of the adjacent heat storage areas;
the inside flexible seal assembly who prevents its hourglass of still being equipped with of casing, flexible seal assembly includes that the ring locates the casing first magnetic pole of diapire, the second magnetic pole that repels mutually with first magnetic pole and the mounting bracket of installation second magnetic pole, the mounting bracket is including setting up in the mount pad at baffle top, mount pad one end is equipped with the fixed plate, and the other end articulates there is the dwang, fixed plate surface fixed connection second magnetic pole, dwang end connection has the magnetic seal wheel that attracts mutually with first magnetic pole, the magnetic seal wheel embedded in the storage tank that the diapire was seted up on the casing.
2. The boiler flue gas treatment system with a high efficiency air preheater of claim 1, wherein: fan-shaped plates are arranged between the shell hot end smoke inlet and the first air outlet, between the first air outlet and the second air outlet, between the shell cold end smoke outlet and the first air inlet and between the first air inlet and the second air inlet.
3. The boiler flue gas treatment system with a high efficiency air preheater of claim 1, wherein: the casing cold junction is equipped with the temperature sensor of monitoring exit temperature, temperature sensor and controller electric connection, and the controller still controls the driving motor's that is connected with the pivot transmission rotational speed.
4. The boiler flue gas treatment system with a high efficiency air preheater of claim 3, wherein: the controller also controls the sound wave frequency of the sound wave dust remover.
5. The boiler flue gas treatment system with a high efficiency air preheater of claim 1, wherein: a smoke channel is formed between the smoke inlet and the smoke outlet, a first air channel is formed between the first air inlet and the first air outlet, and a second air channel is formed between the second air inlet and the second air outlet.
6. The boiler flue gas treatment system with a high efficiency air preheater of claim 1, wherein: first sound wave ash removal subassembly and second sound wave ash removal subassembly are about upset and set up in casing hot junction and cold junction.
7. The boiler flue gas treatment system with a high efficiency air preheater of claim 1, wherein: and the inlet of the SCR denitration reactor is communicated with the outlet of the boiler.
8. The boiler flue gas treatment system with a high efficiency air preheater of claim 1, wherein: the inlet end of the smoke air heater is connected with an air feeder, and a dry combustion partition door is arranged between the air feeder and the smoke air heater.
9. The boiler flue gas treatment system with a high efficiency air preheater of claim 1, wherein: and an induced draft fan is arranged between the electrostatic dust collector and the desulfurization absorption tower.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111384595.1A CN113915635A (en) | 2021-11-22 | 2021-11-22 | Boiler flue gas treatment system with high-efficient air heater |
| PCT/CN2022/078192 WO2023087568A1 (en) | 2021-11-22 | 2022-02-28 | Boiler flue gas treatment system having efficient air preheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111384595.1A CN113915635A (en) | 2021-11-22 | 2021-11-22 | Boiler flue gas treatment system with high-efficient air heater |
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| Publication Number | Publication Date |
|---|---|
| CN113915635A true CN113915635A (en) | 2022-01-11 |
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|---|---|---|---|
| CN202111384595.1A Pending CN113915635A (en) | 2021-11-22 | 2021-11-22 | Boiler flue gas treatment system with high-efficient air heater |
Country Status (2)
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| CN (1) | CN113915635A (en) |
| WO (1) | WO2023087568A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023087568A1 (en) * | 2021-11-22 | 2023-05-25 | 江苏峰业科技环保集团股份有限公司 | Boiler flue gas treatment system having efficient air preheater |
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| CN113915635A (en) * | 2021-11-22 | 2022-01-11 | 江苏峰业科技环保集团股份有限公司 | Boiler flue gas treatment system with high-efficient air heater |
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2021
- 2021-11-22 CN CN202111384595.1A patent/CN113915635A/en active Pending
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- 2022-02-28 WO PCT/CN2022/078192 patent/WO2023087568A1/en active Application Filing
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023087568A1 (en) * | 2021-11-22 | 2023-05-25 | 江苏峰业科技环保集团股份有限公司 | Boiler flue gas treatment system having efficient air preheater |
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| WO2023087568A1 (en) | 2023-05-25 |
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Address after: 225000 No. 1, Hongyuan Road, high end equipment manufacturing industrial park, Shaobo Town, Jiangdu District, Yangzhou City, Jiangsu Province Applicant after: Jiangsu Fengye Environmental Technology Group Co.,Ltd. Address before: 225000 Shaobo town Zhaoguan Jinghang village Jiangdu District Yangzhou City Jiangsu Province Applicant before: JIANGSU FENG YE TECHNOLOGY ENVIRONMENTAL PROTECTION GROUP Co.,Ltd. |
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Application publication date: 20220111 |