CN110440282A - The energy-saving anti-blocking type air preheater system and its working method of tubular type and the combination of two warehouse separated type rotary regenerative air preheaters - Google Patents
The energy-saving anti-blocking type air preheater system and its working method of tubular type and the combination of two warehouse separated type rotary regenerative air preheaters Download PDFInfo
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- CN110440282A CN110440282A CN201910647578.9A CN201910647578A CN110440282A CN 110440282 A CN110440282 A CN 110440282A CN 201910647578 A CN201910647578 A CN 201910647578A CN 110440282 A CN110440282 A CN 110440282A
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- air
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- air preheater
- rotary regenerative
- preheater
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- 230000001172 regenerating effect Effects 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000003245 coal Substances 0.000 claims abstract description 16
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 238000012546 transfer Methods 0.000 claims abstract description 10
- 238000002360 preparation method Methods 0.000 claims abstract description 6
- 239000007789 gas Substances 0.000 claims description 23
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 12
- 239000003546 flue gas Substances 0.000 claims description 12
- 239000000779 smoke Substances 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 4
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 238000006477 desulfuration reaction Methods 0.000 claims description 3
- 230000023556 desulfurization Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000012716 precipitator Substances 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000004134 energy conservation Methods 0.000 claims 1
- 239000004071 soot Substances 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005192 partition Methods 0.000 abstract description 2
- 238000010348 incorporation Methods 0.000 abstract 1
- 230000000903 blocking effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 208000011580 syndromic disease Diseases 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000007634 remodeling Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- WWILHZQYNPQALT-UHFFFAOYSA-N 2-methyl-2-morpholin-4-ylpropanal Chemical compound O=CC(C)(C)N1CCOCC1 WWILHZQYNPQALT-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- BIGPRXCJEDHCLP-UHFFFAOYSA-N ammonium bisulfate Chemical compound [NH4+].OS([O-])(=O)=O BIGPRXCJEDHCLP-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
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
- F23L15/02—Arrangements of regenerators
-
- 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 present invention discloses the energy-saving anti-blocking type air preheater system and its working method of a kind of tubular type and the combination of two warehouse separated type rotary regenerative air preheaters, belongs to new energy and field of energy-saving technology.System includes two points of storehouse rotary regenerative air preheaters and tubular air preheater.Boiler accessory machinery power consumption can be greatly reduced in air leak rate of air preheater near 2% or so by the present invention；After heating First air using tubular air preheater, it can be by the heat transfer original part height down 1/3 or so of rotary regenerative air preheater, the effect for greatly improving rotary regenerative air preheater soot blower reduces the resistance of rotary regenerative air preheater, solves the problems, such as that air preheater blocks；First air is divided into two parts with partition and passes through tubular air preheater, in side air duct, controllable register is set, tubular air preheater, which is rationally controlled, by pulverized coal preparation system demand exports an air temperature, the cold primary air flow of pulverized coal preparation system incorporation is greatly reduced, reduce exhaust gas temperature, heat loss due to exhaust gas is reduced, boiler efficiency is improved.
Description
Technical field
The present invention relates to the energy-saving anti-blocking type air preheats that a kind of tubular type and two warehouse separated type rotary regenerative air preheaters combine
Device system and its working method belong to new energy and field of energy-saving technology, are suitable for thermal power generation unit.
Background technique
Thermal power plant is to reduce exhaust gas temperature, improve boiler efficiency while improving combustion-supporting wind-warm syndrome, is respectively provided with air preheat
Device.Air preheater principal mode has two kinds of forms of tubular air preheater and rotary regenerative air preheater.Both air are pre-
It is that air leak rate of air curtain is small that hot device, which respectively has the advantages of advantage and disadvantage, tubular air preheater, it is not easy to stifled ash；The disadvantage is that weight is big, low-temperature zone
It is perishable.The advantages of rotary regenerative air preheater is that metal consumption is small, and heat-transfer capability is strong, is rinsed in operation convenient for soot blowing and water；
The disadvantage is that air leak rate of air curtain is big, after denitrating system investment, blocking is serious.Due to the above feature, tubular air preheater is in 200MW or less
Using relatively broad, the above rotary regenerative air preheater extensive use of 300MW unit.In recent years due to environmental requirement, ammonia process is de-
After nitre system comes into operation, air preheater blocking is serious, and particularly with the unit for using high-sulfur coal, hydrogen sulfate ammonia is deposited on revolution
Regenerative air heater exchanges heat in the middle part of original part, and since heat exchange original part height is at 2.0 meters to 2.7 meters, cool and heat ends soot blower can not be effective
Remove ammonium hydrogen sulfate dust stratification.It is forced the flushing of frequent progress air preheater water and the continuous soot blowing of air preheater, causes air pre-
Hot device heat exchange original part service life substantially shortens, and increases power plant's repair and maintenance cost.
Into several years, since coal price is stepped up, power plant tended to be many kinds of using coal, and coal varitation is very big, especially
It is as-fired coal moisture and dry ash free basis volatile matter, and coal pulverizer inlet wind-warm syndrome and outlet wind-warm syndrome is caused to need significantly to adjust,
Cause sometimes drying capacity it is inadequate, limit pulverizer capacity；Sometimes coal pulverizer largely mixes cold First air, causes pot
Fire grate smoke temperature spends height, and boiler efficiency is seriously relatively low.
Summary of the invention
It is an object of the invention to overcome the above deficiencies in the existing technologies, and provide a kind of tubular type and two warehouse separated types
The energy-saving anti-blocking type air preheater system and its working method of rotary regenerative air preheater combination, for solving in the prior art
There are rotary air preheater air leak rates greatly, subsidiary engine power consumption is high, air preheater blocking is serious, exhaust gas temperature is higher etc.
Problem.
Technical solution used by the present invention solves the above problems is: a kind of tubular type and the rotary air preheat of two warehouse separated types
The energy-saving anti-blocking type air preheater system of device combination, characterized in that including the rotary sky of Liang Fencang for heating Secondary Air
Air preheater and tubular air preheater for heating First air, the high temperature section of two points of storehouse rotary regenerative air preheaters and
Low-temperature zone is each provided with two groups of sealing plates, and is provided with heat transfer original part in two points of storehouse rotary regenerative air preheaters；The tubular type is empty
Air preheater is arranged in the flue gas upstream of two points of storehouse rotary regenerative air preheaters, the gas inlet of the tubular air preheater with
The exhaust pass of denitrating system connects, and the gas inlet of tubular air preheater is provided with expansion joint, the tubular air
The exhanst gas outlet of preheater is connected with the gas inlet of two points of storehouse rotary regenerative air preheaters, the rotary air in two points of storehouses
The exhanst gas outlet of preheater is connected to deduster；Wind inlet of the tubular air preheater is connect with primary air fan, and
It is provided with demarcation plate in a wind inlet air duct of tubular air preheater, and the side of demarcation plate is provided with adjusting gear
Plate, the First air outlet of the tubular air preheater to heat primary air main pipe；The rotary air preheat in two points of storehouses
The secondary air inlet of device is connect with pressure fan, the Secondary Air outlet of two points of storehouse rotary regenerative air preheaters to Secondary Air
Case.
Further, the material of the tubular air preheater can be ordinary carbon steel.
Further, Antiwear casing is installed additional in the gas inlet 30cm of the tubular air preheater.
Further, two points of storehouse rotary regenerative air preheater axial seals and circumferential seal and the rotary air preheat of tradition
Device sealing is identical, and flexible sealing or steel sealing can be used.
The energy-saving anti-blocking type air preheater system that the tubular type and two warehouse separated type rotary regenerative air preheaters combine
Working method is as follows, and the flue gas drawn from denitrating system first passes through tubular air preheater and cools down, smoke temperature decline 60 ~ 80
DEG C, then enter back into Liang Fencang rotary regenerative air preheater and cool down, smoke temperature declines 190 ~ 210 DEG C, when smoke temperature reaches 120 ~
At 140 DEG C, flue gas is discharged to electric precipitator, then chimney is discharged to after air-introduced machine, desulfurization；It is sent into from the outlet of primary air fan cold
First air is heated to being sent to heat primary air main pipe after 220 ~ 330 DEG C through tubular air preheater, then delivers coal powder through pulverized coal preparation system
To hearth combustion；The cold Secondary Air being sent into from pressure fan enters after being heated to 320 DEG C through two points of storehouse rotary regenerative air preheaters
Burner hearth is combustion-supporting.
Further, flue gas is flowed through out of tubular air preheater pipe, and First air is outside the pipe of tubular air preheater
It flows through.
Further, tubular air preheater heating accounts for the First air of 25 ~ 30% ratio boiler total blast volumes；Two points of storehouse revolutions
Regenerative air heater heats the Secondary Air for accounting for 70 ~ 75% ratio boiler total blast volumes.
Further, the air leak rate of air curtain of tubular air preheater controls within 2%, two points of storehouse rotary regenerative air preheaters
Air leak rate of air curtain controls within 2%.
Further, First air is divided into two parts into tubular air preheater, and wherein controllable register is arranged in side air duct, is led to
Overregulating baffle can control the temperature of heat primary air.
Further, the present invention can be transformed obtained, remodeling method by three points of storehouses of existing rotary regenerative air preheater
It is as follows:
1, it transform the San Fencang of original rotary regenerative air preheater as Liang Fencang；
2, rotary regenerative air preheater heat exchange original part height is reduced according to Calculation of Heat Transfer result；
3, tubular air preheater is set on the gas approach for exporting to rotary regenerative air preheater of denitrating system；
4, heat primary air road is connected to going out for tubular air preheater by the entrance that First air is introduced to tubular air preheater
Mouthful.
Further, in two points of storehouse rotary regenerative air preheaters conduct heat original part than three points rotary air preheats in storehouse of height
Device reduces 1/3 or so, and origin operation mode is pressed when which uses.
Compared with prior art, the present invention having the following advantages that and effect: the present invention can be by air leak rate of air preheater
Near 2% or so, boiler accessory machinery power consumption is greatly reduced；It, can be by rotary sky after heating First air using tubular air preheater
The heat transfer original part height down 1/3 or so of air preheater, can greatly improve the effect of rotary regenerative air preheater soot blower, drop
The resistance of low rotary regenerative air preheater solves the problems, such as air preheater blocking；First air is divided into two parts with partition
By tubular air preheater, controllable register is set in side air duct, rationally controls tubular air preheating by pulverized coal preparation system demand
The air temperature of outlet one time of device is greatly reduced pulverized coal preparation system and mixes cold primary air flow, reduces exhaust gas temperature, reduces smoke evacuation heat
Loss improves boiler efficiency.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the embodiment of the present invention.
Fig. 2 is the overlooking structure diagram of two points of storehouse rotary regenerative air preheaters in the embodiment of the present invention.
Fig. 3 is the structural schematic diagram of tubular air preheater in the embodiment of the present invention.
In figure: two points of storehouse rotary regenerative air preheaters 1, tubular air preheater 2, expansion joint 3, controllable register 4, First air
Machine 5, pressure fan 6, demarcation plate 7, heat transfer original part 8, sealing plate 9.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawing and by embodiment, and following embodiment is to this hair
Bright explanation and the invention is not limited to following embodiments.
Referring to Fig. 1 to Fig. 3, the energy-saving anti-blocking of tubular type and the combination of two warehouse separated type rotary regenerative air preheaters in the present embodiment
Type air preheater system, including two points of storehouse rotary regenerative air preheaters 1 for heating Secondary Air and for heating First air
Tubular air preheater 2, the high temperature section and low-temperature zone of two points of storehouse rotary regenerative air preheaters 1 be each provided with two groups of sealing plates 9,
And heat transfer original part 8 is provided in two points of storehouse rotary regenerative air preheaters 1；It is rotary that tubular air preheater 2 is arranged in Liang Fencang
The flue gas upstream of air preheater 1, the gas inlet of tubular air preheater 2 and the exhaust pass of denitrating system connect, and
The gas inlet of tubular air preheater 2 is provided with expansion joint 3, and the exhanst gas outlet of tubular air preheater 2 and two points of storehouses are turned round
The gas inlet of regenerative air heater 1 is connected, and the exhanst gas outlet of two points of storehouse rotary regenerative air preheaters 1 is connected to deduster；
Wind inlet of tubular air preheater 2 is connect with primary air fan 5, and in a wind inlet wind of tubular air preheater 2
It is provided with demarcation plate 7 in road, and the side of demarcation plate 7 is provided with controllable register 4, the First air of tubular air preheater 2
Outlet is to heat primary air main pipe；The secondary air inlet of two points of storehouse rotary regenerative air preheaters 1 is connect with pressure fan 6, and two points
The Secondary Air outlet of storehouse rotary regenerative air preheater 1 is to secondary air box.
In the present embodiment, the material of tubular air preheater 2 is ordinary carbon steel.
In the present embodiment, Antiwear casing is installed in the gas inlet 30cm of tubular air preheater 2 additional.
In the present embodiment, two points of 1 axial seals of storehouse rotary regenerative air preheater and circumferential seal and the rotary air of tradition
Preheater sealing is identical, and flexible sealing or steel sealing can be used.
Working method is as follows, and the flue gas drawn from denitrating system first passes through tubular air preheater 2 and cools down, under smoke temperature
60 ~ 80 DEG C of drop, then enters back into Liang Fencang rotary regenerative air preheater 1 and cools down, and smoke temperature declines 190 ~ 210 DEG C, works as smoke temperature
When reaching 120 ~ 140 DEG C, flue gas is discharged to electric precipitator, then chimney is discharged to after air-introduced machine, desulfurization；From going out for primary air fan 5
The cold First air that mouth is sent into is heated to being sent to heat primary air main pipe after 220 ~ 330 DEG C through tubular air preheater 2, then through powder processed
System delivers coal powder to hearth combustion；The cold Secondary Air being sent into from pressure fan 6 is heated to through two points of storehouse rotary regenerative air preheaters 1
It is combustion-supporting to enter burner hearth after 320 DEG C.
In the above method, flue gas is flowed through out of tubular air preheater 2 pipe, and First air is from tubular air preheater 2
Pipe is outer to be flowed through.
Tubular air preheater 2 heats the First air for accounting for 25 ~ 30% ratio boiler total blast volumes；Two points of rotary air in storehouse are pre-
Hot device 1 heats the Secondary Air for accounting for 70 ~ 75% ratio boiler total blast volumes.
The air leak rate of air curtain of tubular air preheater 2 controls the air leak rate of air curtain control of two points of storehouse rotary regenerative air preheaters 1 within 2%
System is within 2%.
First air is divided into two parts into tubular air preheater 2, and wherein controllable register 4 is arranged in side air duct, passes through adjusting
The temperature of the control heat primary air of baffle 4.
This system can be also transformed obtained by three points of storehouses of existing rotary regenerative air preheater, and remodeling method is as follows:
1, it transform the San Fencang of original rotary regenerative air preheater as Liang Fencang；
2, rotary regenerative air preheater heat exchange original part height is reduced according to Calculation of Heat Transfer result；
3, tubular air preheater 2 is set on the gas approach for exporting to rotary regenerative air preheater of denitrating system；
4, heat primary air road is connected to going out for tubular air preheater 2 by the entrance that First air is introduced to tubular air preheater 2
Mouthful.
The height of heat transfer original part 8 is reduced than trisector air heater in two points of storehouse rotary regenerative air preheaters 1
1/3 or so, origin operation mode is pressed when which uses.
It is any to be familiar with although the present invention is disclosed as above with embodiment, its protection scope being not intended to limit the invention
The technical staff of this technology should belong to guarantor of the invention in made change without departing from the spirit and scope of the invention
Protect range.
Claims (7)
1. the energy-saving anti-blocking type air preheater system of a kind of tubular type and the combination of two warehouse separated type rotary regenerative air preheaters, feature
It is, it is pre- including two points of storehouse rotary regenerative air preheaters (1) for heating Secondary Air and the tubular air for heating First air
Hot device (2), the high temperature section and low-temperature zone of two points of storehouse rotary regenerative air preheaters (1) are each provided with two groups of sealing plates (9), and
Heat transfer original part (8) is provided in two points of storehouse rotary regenerative air preheaters (1)；The tubular air preheater (2) is arranged in two points
The flue gas upstream of storehouse rotary regenerative air preheater (1), the gas inlet of the tubular air preheater (2) and going out for denitrating system
Mouth flue connection, and the gas inlet of tubular air preheater (2) is provided with expansion joint (3), the tubular air preheater
(2) exhanst gas outlet is connected with the gas inlet of two points of storehouse rotary regenerative air preheaters (1), the rotary air in two points of storehouses
The exhanst gas outlet of preheater (1) is connected to deduster；A wind inlet and primary air fan for the tubular air preheater (2)
(5) it connects, and is provided with demarcation plate (7) in a wind inlet air duct of tubular air preheater (2), and in demarcation plate
(7) side is provided with controllable register (4), and the First air outlet of the tubular air preheater (2) is female to heat primary air
Pipe；The secondary air inlet of two points of storehouse rotary regenerative air preheaters (1) is connect with pressure fan (6), and two points of storehouses are rotary
The Secondary Air outlet of air preheater (1) is to secondary air box.
2. tubular type according to claim 1 and the energy-saving anti-blocking type air of two warehouse separated type rotary regenerative air preheaters combination are pre-
Hot device system, characterized in that the material of the tubular air preheater (2) is ordinary carbon steel.
3. tubular type according to claim 1 and the energy-saving anti-blocking type air of two warehouse separated type rotary regenerative air preheaters combination are pre-
Hot device system, characterized in that install Antiwear casing in the gas inlet 30cm of the tubular air preheater (2) additional.
4. the energy conservation of a kind of tubular type as claimed in any one of claims 1-3 and the combination of two warehouse separated type rotary regenerative air preheaters
The working method of block-resistant type air preheater system, characterized in that it is pre- that the flue gas drawn from denitrating system first passes through tubular air
Hot device (2) cools down, and smoke temperature declines 60 ~ 80 DEG C, then enters back into Liang Fencang rotary regenerative air preheater (1) and cools down,
Smoke temperature declines 190 ~ 210 DEG C, and when smoke temperature reaches 120 ~ 140 DEG C, flue gas is discharged to electric precipitator, then after air-introduced machine, desulfurization
It is discharged to chimney；The cold First air being sent into from the outlet of primary air fan (5) is heated to 220 ~ 330 DEG C through tubular air preheater (2)
It is sent to heat primary air main pipe later, then delivers coal powder to hearth combustion through pulverized coal preparation system；The cold Secondary Air warp being sent into from pressure fan (6)
It is combustion-supporting that two points of storehouse rotary regenerative air preheaters (1) enter burner hearth after being heated to 320 DEG C.
5. tubular type according to claim 4 and the energy-saving anti-blocking type air of two warehouse separated type rotary regenerative air preheaters combination are pre-
The working method of hot device system, characterized in that flue gas is flowed through out of tubular air preheater (2) pipe, and First air is empty from tubular type
It is flowed through outside the pipe of air preheater (2).
6. tubular type according to claim 4 and the energy-saving anti-blocking type air of two warehouse separated type rotary regenerative air preheaters combination are pre-
The working method of hot device system, characterized in that tubular air preheater (2) heating accounts for the primary of 25 ~ 30% ratio boiler total blast volumes
Wind；Two points of storehouse rotary regenerative air preheater (1) heating account for the Secondary Air of 70 ~ 75% ratio boiler total blast volumes.
7. tubular type according to claim 4 and the energy-saving anti-blocking type air of two warehouse separated type rotary regenerative air preheaters combination are pre-
The working method of hot device system, characterized in that the air leak rate of air curtain of tubular air preheater (2) controls within 2%, two points of storehouse revolutions
The air leak rate of air curtain of regenerative air heater (1) controls within 2%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910647578.9A CN110440282A (en) | 2019-07-17 | 2019-07-17 | The energy-saving anti-blocking type air preheater system and its working method of tubular type and the combination of two warehouse separated type rotary regenerative air preheaters |
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|---|---|---|---|
| CN201910647578.9A CN110440282A (en) | 2019-07-17 | 2019-07-17 | The energy-saving anti-blocking type air preheater system and its working method of tubular type and the combination of two warehouse separated type rotary regenerative air preheaters |
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| CN204460272U (en) * | 2015-01-21 | 2015-07-08 | 东方电气集团东方锅炉股份有限公司 | A kind of therrmodynamic system of mixed-arrangement |
| CN204693473U (en) * | 2015-05-15 | 2015-10-07 | 西安西热锅炉环保工程有限公司 | The two-way air preheater system that a kind of coal-burning boiler first and second wind system is isolated |
| CN107655027A (en) * | 2017-09-11 | 2018-02-02 | 大唐东北电力试验研究所有限公司 | Rotary regenerative air preheater and its Secondary Air side subtract the obstruction-proof method that leaks out |
| CN208536031U (en) * | 2018-06-19 | 2019-02-22 | 杭州新际能源科技有限公司 | A kind of rotary regenerative air heater dividing storehouse fanning strip with single heating |
| CN208671056U (en) * | 2018-06-19 | 2019-03-29 | 杭州新际能源科技有限公司 | Ammonium hydrogen sulfate heating evaporation equipment in rotary regenerative air preheater |
| CN109404958A (en) * | 2018-11-12 | 2019-03-01 | 南京博沃科技发展有限公司 | A kind of energy efficiency anti-blocking method and system based on air preheater bypass flue |
| CN210832077U (en) * | 2019-07-17 | 2020-06-23 | 华电电力科学研究院有限公司 | Energy-saving anti-blocking system combining pipe type and two-bin type rotary air preheater |
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