CN206989172U - The denitration of boiler full load couples fume afterheat gradient utilization system - Google Patents
The denitration of boiler full load couples fume afterheat gradient utilization system Download PDFInfo
- Publication number
- CN206989172U CN206989172U CN201720739788.7U CN201720739788U CN206989172U CN 206989172 U CN206989172 U CN 206989172U CN 201720739788 U CN201720739788 U CN 201720739788U CN 206989172 U CN206989172 U CN 206989172U
- Authority
- CN
- China
- Prior art keywords
- economizer
- temperature
- low
- gas
- boiler
- 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
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
It the utility model is related to that boiler full load denitration puts into operation and smoke discharging residual heat utilizes field, particularly disclose a kind of boiler full load denitration coupling fume afterheat gradient utilization system.The system includes boiler, and the exhaust gases passes interior edge flue gas direction of advance of boiler is sequentially installed with low-temperature heater, economizer, denitrification apparatus, air preheater and electric cleaner, it is characterised in that：The exhaust gases passes are provided with high temperature denitration bypass flue between low temperature superheater entrance and denitrification apparatus entrance；Exhaust gases passes are provided with air preheater bypass flue between denitration outlet and electric cleaner entrance, and air preheater bypass flue interior edge flue gas direction of advance is disposed with high-temperature economizer and medium temperature economizer.Denitrification apparatus effectively comes into operation under the conditions of the utility model can realize boiler at low load, solves the problems, such as that boiler load reduces denitrification apparatus off-the-line；And the cascade utilization of fume afterheat is realized, effectively squeeze high level and draw gas, increase generation load, lifting power plant overall efficiency.
Description
（One）Technical field
It the utility model is related to that boiler full load denitration puts into operation and smoke discharging residual heat utilizes field, more particularly to a kind of boiler is complete
Load denitration couples fume afterheat gradient utilization system.
（Two）Background technology
At present, the widely used SCR in domestic thermal power plant（Selective catalytic reduction）Control NOx discharge, catalyst
Optimal reaction temperature section is 300 DEG C~420 DEG C.The input gas temperature of denitrification apparatus changes and changed with boiler load, when
When boiler load is relatively low, denitrification apparatus input gas temperature is relatively low, on the one hand catalyst activity can be caused to reduce, in addition a side
Face, reducing agent ammonia and the SO in flue gas3Reaction generation hydrogen sulfate ammonia can deposit on a catalyst, further reduce the work of catalyst
Property, or even cause the irreversible activity of catalyst to reduce.
In addition, in boiler combustion various heat losses, heat loss due to exhaust gas is maximum one.The mode of conventional Mist heat recovering
That low-level (stack-gas) economizer is arranged in flue, the low pressure condensation water of heating final stage, on surface can a large amount of Mist heat recoverings, but this is remaining
The energy level of heat is relatively low, causes that coagulation hydroenergy backwater point and off-take point position are only capable of being lifted one-level or two-stage is low adds, therefore caused effect
Benefit is relatively low.
（Three）The content of the invention
The utility model is in order to make up the deficiencies in the prior art, there is provided a kind of energy-saving, protection air preheater
The denitration of boiler full load couples fume afterheat gradient utilization system.
The utility model is achieved by the following technical solution：
A kind of boiler full load denitration couples fume afterheat gradient utilization system, includes the boiler of connection air supply duct, pot
The exhaust gases passes interior edge flue gas direction of advance of stove be sequentially installed with low-temperature heater, economizer, denitrification apparatus, air preheater and
Electric cleaner, wherein air preheater are simultaneously in air supply duct, it is characterised in that：The exhaust gases passes are in cryogenic overheating
High temperature denitration bypass flue is provided between device entrance and denitrification apparatus entrance, and bypass is provided with high temperature denitration bypass flue
Flue turns off baffle plate A, is provided with exhaust gases passes positioned at the flue collector controllable register B of economizer exit position and positioned at electric precipitation
The low-level (stack-gas) economizer of device entrance；Exhaust gases passes are provided with air preheater bypass cigarette between denitration outlet and electric cleaner entrance
Road, and air preheater bypass flue interior edge flue gas direction of advance be disposed with bypass flue controllable register, high-temperature economizer and in
Warm economizer；The steam air heater before air preheater and the high temperature warm wind after air preheater are provided with air supply duct
Device, the inlet and outlet of high temperature steam air heater draw gas introduction pipe and No. three are drawn gas and lead back pipeline company be connected No. three of steam turbine respectively
It is logical.
The utility model sets high temperature denitration bypass flue connected in parallel on exhaust gases passes, in boiler higher load
When, flue collector controllable register standard-sized sheet, it is fully closed that bypass flue turns off baffle plate A.Typically when denitrification apparatus import cigarette temperature is less than 300 DEG C
When, open bypass flue and turn off baffle plate A to full-gear；As boiler load reduces, when bypass flue turns off baffle plate A standard-sized sheets
Afterwards, when can not still meet denitrification apparatus inlet flue gas temperature demand, start progressively to turn down flue collector controllable register, increase by high temperature denitration
The flue gas flow of road flue, 300 DEG C or so of denitrification apparatus inlet flue gas temperature is met more than 25% load.
More excellent technical scheme of the present utility model is：
The intake-outlet of the high-temperature economizer connects high-temperature economizer inlet duct and high-temperature economizer outlet respectively
Road, high-temperature economizer inlet duct shut-off valve and high-temperature economizer regulating valve, high temperature are installed on high-temperature economizer inlet duct
High-temperature economizer outlet conduit shut-off valve, high-temperature economizer inlet duct and high-temperature economizer are installed on economizer exit pipeline
Outlet conduit is all connected with the economizer feedwater piping of economizer, and feed pump is provided with economizer feedwater piping.
High-temperature economizer is arranged in air preheater bypass flue, water route and high-temperature economizer inlet duct, high-temperature economizer
Outlet conduit connects, and sets respective valves to be used for water circuit system and open and close connection.High-temperature economizer and water supply system parallel running,
Fetch water self-supporting exit of pump；Part feedwater enters high-temperature economizer, converges after flue gas in economizer entrance feedwater piping,
It can squeeze high plus draw gas, increase generated energy；The water resistance of high-temperature economizer is overcome by feed pump.
The intake-outlet of the medium temperature economizer connects medium temperature economizer inlet duct and medium temperature economizer exit pipe respectively
Road, booster is installed on medium temperature economizer inlet duct and connects the condensing water conduit of low-pressure heater, and in condensate pipe
Condensate pump, medium temperature economizer exit pipeline connection oxygen-eliminating device entrance are installed on road.
Medium temperature economizer is arranged in high-temperature economizer outlet, is connected with low-pressure heater, booster, and set respective valves
Opened and closed for water circuit system.Medium temperature economizer and condensate system parallel running, fetch water from low-pressure heater condensate, are bypassing
High-temperature economizer exiting flue gas waste heat is absorbed in flue, reduces flue-gas temperature, backwater is arranged to oxygen-eliminating device entrance after recirculated water heating
Squeeze low plus draw gas；The water resistance of medium temperature economizer is overcome by circulating pump.
Low-level (stack-gas) economizer inlet duct is installed, on low-level (stack-gas) economizer inlet duct on the water inlet of the low-level (stack-gas) economizer
Circulating pump is installed and connects the condensing water conduit of low-pressure heater, the steam air heater of the delivery port connection steam air heater of low-level (stack-gas) economizer
Inlet duct, the condensing water conduit of the steam air heater water return pipeline connection low-pressure heater of steam air heater.
Low-level (stack-gas) economizer is arranged in electric cleaner entrance, is connected with low-pressure heater, steam air heater and circulating pump, with condensate
System is connected in parallel, and sets respective valves to be opened and closed for water circuit system.Steam air heater is arranged in air preheater inlet conduits.
Because air preheater bypass flue is by part air preheater gas bypass, secondary hot-air temperature reduction is caused.To make up boiler air-supply
Underheat, steam air heater connection low-level (stack-gas) economizer and low pressure condensation water system, recirculated water is set to come from low pressure condensation water, backwater is extremely
Condenser outlet conduit.Recirculated water enters after low-level (stack-gas) economizer absorbs fume afterheat and enters steam air heater, utilizes low-temperature flue gas waste heat
Heating boiler air-supply common with low pressure condensation water heat, heating boiler are blown to 70 DEG C or so, improve a secondary hot-air temperature, more
Cover air preheater undercapacity problem；The water resistance of low-level (stack-gas) economizer is overcome by circulating pump.
The low temperature superheater, economizer, high-temperature economizer, the circulatory mediator of medium temperature economizer and low-level (stack-gas) economizer enter
Mouthful, export direction on the contrary, realize the convective exchange of heat, improve heat exchange efficiency with the flue gas direction of advance in exhaust gases passes.
The low temperature superheater, economizer, high-temperature economizer, medium temperature economizer and low-level (stack-gas) economizer are that modularization is set
Meter, module can be achieved and independently cut off, solve the problems, such as that local leakage heat exchanger can not be run；And each hot device of smoke gasification into and out of
Mouth is respectively provided with header.
High temperature steam air heater is arranged in hot primary and secondary air outlet conduits, and heating steam pipework is connected with No. three extraction lines.
Due to No. three higher problems of the generally existing degree of superheat of drawing gas of steam turbine, hot primary and secondary air is heated using some vapor sensible heat, is carried
About 15~20 DEG C of high wind-warm syndrome, input boiler heat is effectively increased, improves boiler efficiency.
The bypass flue shut-off baffle plate A set in high temperature denitration gas bypass, controls the by-pass flue in unit underload
Can through-flow 15-20% exhaust gas volumns；The bypass flue controllable register B set in air preheater bypass flue, control flue collector and bypass cigarette
The exhaust gas volumn in road, the exhaust gas volumn of bypass flue account for the 10%-35% of amount of flue gas emission.
The beneficial effects of the utility model are：
Fume afterheat gradient utilization system is coupled by the denitration of boiler full load, denitration under the conditions of boiler at low load can be achieved
Device effectively comes into operation, and solves the problems, such as that boiler load reduces denitrification apparatus off-the-line；And the cascade utilization of fume afterheat is realized, effectively
Exclusion high level draws gas, and increases generation load, lifting power plant overall efficiency；In addition electric precipitation inlet flue gas temperature reduces, and effectively drops powder
Dirt ratio resistance, improve the efficiency of dust collection of electric cleaner.
The fume afterheat that system is reclaimed is used for two parts, and a part of high level heat energy is used to heat steam turbine condensate reality
Now economize on coal, another part low-lying level heat energy is used to heat into stove cold wind, improves a secondary hot-air temperature, makes up air preheater and go out
Power deficiency problem；And the comprehensive tube wall temperature of cold section of air preheater is improved, protect air preheater, winter alternative conventional steam
Steam air heater, save consumption vapour.
（Four）Brief description of the drawings
The utility model is further described below in conjunction with the accompanying drawings.
Fig. 1 is structural representation of the present utility model.
In figure, 1 boiler, 2 low temperature superheaters, 3 economizers, 4 high temperature denitration bypass flues, 5 bypass flues shut-off baffle plate A, 6
Flue collector controllable register, 7 denitrification apparatus, 8 air preheaters, 9 air supply ducts, 10 economizer feedwater pipings, 11 high-temperature economizers,
12 medium temperature economizers, 13 bypass flue controllable register B, 14 air preheater bypass flues, 15 high-temperature economizer inlet ducts, 16 high temperature
Economizer inlet duct shut-off valve, 17 high-temperature economizer outlet conduits, 18 high-temperature economizer outlet conduit shut-off valves, 19 high temperature save
Coal device regulating valve, 20 electric cleaners, 21 medium temperature economizer exit pipelines, 22 boosters, 23 medium temperature economizer inlet ducts, 24 is low
Warm economizer, 25 low-level (stack-gas) economizer inlet ducts, 26 steam air heater inlet ducts, 27 steam air heaters, 28 circulating pumps, 29 steam air heater backwater
Pipeline, 30 high temperature steam air heaters, 31 No. three introduction pipes that draw gas, 32 No. three are drawn gas and lead back pipeline, 33 No. three shut-off valves that draw gas.
（Five）Embodiment
Accompanying drawing is a kind of specific embodiment of the present utility model.The embodiment includes the boiler 1 of connection air supply duct 9, pot
The exhaust gases passes interior edge flue gas direction of advance of stove 1 is sequentially installed with low-temperature heater 2, economizer 3, denitrification apparatus 7, air preheat
Device 8 and electric cleaner 20, wherein air preheater 8 are simultaneously in air supply duct 9, and the exhaust gases passes are in low temperature superheater
High temperature denitration bypass flue 4 is provided between 2 entrances and the entrance of denitrification apparatus 7, and side is provided with high temperature denitration bypass flue 4
Road flue turns off baffle plate A5, is provided with exhaust gases passes positioned at the flue collector controllable register 6 of the outlet port of economizer 3 and positioned at electricity
The low-level (stack-gas) economizer 24 of the entrance of deduster 20；Exhaust gases passes are exported in denitrification apparatus 7 and are provided between the entrance of electric cleaner 20
Air preheater bypass flue 14, and the interior edge flue gas direction of advance of air preheater bypass flue 14 is disposed with bypass flue controllable register
B13, high-temperature economizer 11 and medium temperature economizer 12；The He of steam air heater 27 before air preheater 8 is provided with air supply duct 9
High temperature steam air heater 30 after air preheater 8, the inlet and outlet of high temperature steam air heater 30 are taken out with being connected No. three of steam turbine respectively
Vapour introduction pipe 31 draws gas with No. three to be led back pipeline 32 and connects.
The high temperature denitration bypass flue 4 is in boiler higher load, the standard-sized sheet of flue collector baffle plate 6, bypass flue regulation gear
Plate A5 is fully closed.Typically when denitrification apparatus import cigarette temperature is less than 300 DEG C, open bypass flue and turn off baffle plate A5 to full-gear；
As boiler load reduces, after baffle plate standard-sized sheet, when can not still meet denitrification apparatus inlet flue gas temperature demand, start progressively to turn down master
Gas proportioning damper 6, increase flow through the flue gas flow of denitration bypass flue 4, and denitrification apparatus inlet flue gas temperature is improved more than 25% load
To 300 DEG C or so.
The high-temperature economizer 11 is arranged in air preheater bypass flue 14, and gateway connects high-temperature economizer entrance respectively
Pipeline 15 and high-temperature economizer outlet conduit 17, water lines are added into being connected in parallel with height.Height adds to water and entered through high-temperature economizer
Mouth pipeline 15 enters high-temperature economizer 11, enters high-temperature economizer outlet conduit 17 using high-temperature flue gas heating, returns to height and add
Mouth mixes with feedwater, and exclusion is high plus draws gas, and can obtain higher utilization rate of waste heat, greatly improve generated energy.It is high by adjusting
The warm aperture of economizer regulating valve 19 controls water, and water resistance is overcome by feed pump.High-temperature economizer inlet duct is set to close in pipeline
Disconnected valve 16 and high-temperature economizer outlet conduit shut-off valve 18 open and close for water route.
Because the outlet of high-temperature economizer 11 cigarette temperature is still higher, medium temperature economizer 12 is arranged in its outlet, more than flue gas
Heat heating low pressure condensate water.Medium temperature economizer 12 connects medium temperature economizer exit pipeline 21, booster 22 and medium temperature and saves coal respectively
Device inlet duct 23, with condensate system into being connected in parallel.Water intaking is back to after the heating of medium temperature economizer 12 and removed from low adding system
Oxygen device entrance, squeeze low using medium temperature flue gas condensate plus draw gas, improve generated energy.
Low-level (stack-gas) economizer 24 is arranged in the entrance of electric cleaner 30, with low-level (stack-gas) economizer inlet duct 25, circulating pump 28, warm wind
Device inlet duct 26 is connected, and the outlet of steam air heater 27 is connected with steam air heater water return pipeline 29.Low-level (stack-gas) economizer 24 is fetched water from low plus solidifying
System is born water, steam air heater is entered after flue gas, condenser export pipeline is returned after heat release, utilizes low-temperature flue gas waste heat and low
The common heating boiler air-supply of pressure condensation water heat, heating boiler air-supply are promoted to 70 DEG C or so, improve a secondary hot-air temperature, more
Cover air preheater undercapacity problem.Respective valves are set to be used for water route keying and runoff investigation in pipeline.
Flue gas is down to 90 DEG C after the heat exchange of low-level (stack-gas) economizer 24 and enters electric cleaner 20, and electric precipitation inlet flue gas temperature reduces,
Effectively drop dust specific resistance, effectively removes SO3, improve the efficiency of dust collection of electric cleaner.
High temperature steam air heater 30 is arranged in hot first and second air channel, draws gas introduction pipe 31 with No. three and No. three are drawn gas and lead back
Pipeline 32 connects, and heats hot primary and secondary air using No. three part sensible heats that draw gas, improves about 15~20 DEG C of wind-warm syndrome, be effectively increased defeated
Enter boiler heat, improve boiler efficiency.No. three shut-off valves 33 that draw gas are set on former extraction line.
Each flue gas heat-exchange unit is located in flue, and flue gas advance side in its circulatory mediator entrance, export direction and flue
To opposite.Each flue gas heat-exchange unit is modularized design, and module can be achieved and independently cut off, and solving local leakage heat exchanger can not transport
The problem of row.The import and export of each flue gas heat-exchange unit is respectively provided with header.
High temperature denitration bypass flue 4 puts into operation in boiler at low load, controls denitrification apparatus inlet flue gas temperature at 300 DEG C or so,
Disabled in boiler high load capacity.High-temperature economizer 11, medium temperature economizer 12 and low-level (stack-gas) economizer 24 are mutually coordinated, realize more than flue gas
The effective distribution and step of heat efficiently utilize, and improve power plant's overall operation benefit.
By controlling bypass flue to turn off baffle plate A5 and flue collector controllable register 6, the flue gas of control denitration bypass flue leads to
It is excessive that the 15~20% of total smoke is accounted in underload.By adjusting bypass flue controllable register B13 apertures, air preheater is controlled
The flue gas throughput of bypass flue accounts for the 10~35% of total smoke.
By setting the denitration of boiler full load to couple fume afterheat gradient utilization system, denitrification apparatus full load peace can be achieved
Row for the national games, and underload section remains to high efficiente callback fume afterheat below 50%, avoids single lifting denitrification apparatus inlet flue gas temperature
Efficiency decrease problem.By setting air preheater bypass flue to reduce air preheater flue gas pressure drop.High temperature steam air heater is set, can be had
Imitate and improve amount of saving coal, under each load condition of unit, averagely reduce by 4~5g/kWh of consumption of standard coal for power generation or so.
In addition to technical characteristic described in specification, remaining technical characteristic is technology known to those skilled in the art.
Claims (6)
1. a kind of boiler full load denitration couples fume afterheat gradient utilization system, including connection air supply duct（9）Boiler
（1）, boiler（1）Exhaust gases passes interior edge flue gas direction of advance be sequentially installed with low-temperature heater（2）, economizer（3）, denitration dress
Put（7）, air preheater（8）And electric cleaner（20）, wherein air preheater（8）It is arranged on air supply duct simultaneously（9）It is interior, its
It is characterised by：The exhaust gases passes are in low temperature superheater（2）Entrance and denitrification apparatus（7）It is provided between entrance by high temperature denitration
Road flue（4）, and high temperature denitration bypass flue（4）Inside it is provided with bypass flue shut-off baffle plate A（5）, it is provided with exhaust gases passes
Positioned at economizer（3）The flue collector controllable register of outlet port（6）With positioned at electric cleaner（20）The low-level (stack-gas) economizer of entrance
（24）；Exhaust gases passes are in denitrification apparatus（7）Outlet and electric cleaner（20）Air preheater bypass flue is provided between entrance（14）,
And air preheater bypass flue（14）Interior edge flue gas direction of advance is disposed with bypass flue controllable register B（13）, high temperature save coal
Device（11）With medium temperature economizer（12）；Air supply duct（9）Inside it is provided with positioned at air preheater（8）Preceding steam air heater（27）And position
In air preheater（8）High temperature steam air heater afterwards（30）, high temperature steam air heater（30）Inlet and outlet respectively with being connected the three of steam turbine
Number draw gas introduction pipe（31）Drawn gas with No. three and lead back pipeline（32）Connection.
2. boiler full load denitration according to claim 1 couples fume afterheat gradient utilization system, it is characterised in that：Institute
State high-temperature economizer（11）Intake-outlet connect high-temperature economizer inlet duct respectively（15）With high-temperature economizer outlet conduit
（17）, high-temperature economizer inlet duct（15）On high-temperature economizer inlet duct shut-off valve is installed（16）Adjusted with high-temperature economizer
Save valve（19）, high-temperature economizer outlet conduit（17）On high-temperature economizer outlet conduit shut-off valve is installed（18）, high temperature province coal
Device inlet duct（15）With high-temperature economizer outlet conduit（17）It is all connected with economizer（3）Economizer feedwater piping（10）, save
Coal device feedwater piping（10）On feed pump is installed.
3. boiler full load denitration according to claim 1 couples fume afterheat gradient utilization system, it is characterised in that：Institute
State medium temperature economizer（12）Intake-outlet connect medium temperature economizer inlet duct respectively（23）With medium temperature economizer exit pipeline
（21）, medium temperature economizer inlet duct（23）On booster is installed（22）And the condensing water conduit of low-pressure heater is connected, and
Condensate pump, medium temperature economizer exit pipeline are installed on condensing water conduit（21）Connect oxygen-eliminating device entrance.
4. boiler full load denitration according to claim 1 couples fume afterheat gradient utilization system, it is characterised in that：Institute
State low-level (stack-gas) economizer（24）Water inlet on low-level (stack-gas) economizer inlet duct is installed（25）, low-level (stack-gas) economizer inlet duct（25）
On circulating pump is installed（28）And connect the condensing water conduit of low-pressure heater, low-level (stack-gas) economizer（24）Delivery port connection warm wind
Device（27）Steam air heater inlet duct（26）, steam air heater（27）Steam air heater water return pipeline（29）Connect the condensation of low-pressure heater
Waterpipe.
5. boiler full load denitration according to claim 1 couples fume afterheat gradient utilization system, it is characterised in that：Institute
State low temperature superheater（2）, economizer（3）, high-temperature economizer（11）, medium temperature economizer（12）And low-level (stack-gas) economizer（24）Circulation
Medium inlet, export direction are opposite with the flue gas direction of advance in exhaust gases passes.
6. boiler full load denitration according to claim 1 couples fume afterheat gradient utilization system, it is characterised in that：Institute
State low temperature superheater（2）, economizer（3）, high-temperature economizer（11）, medium temperature economizer（12）And low-level (stack-gas) economizer（24）It is mould
Blockization designs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720739788.7U CN206989172U (en) | 2017-06-23 | 2017-06-23 | The denitration of boiler full load couples fume afterheat gradient utilization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720739788.7U CN206989172U (en) | 2017-06-23 | 2017-06-23 | The denitration of boiler full load couples fume afterheat gradient utilization system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206989172U true CN206989172U (en) | 2018-02-09 |
Family
ID=61399105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720739788.7U Active CN206989172U (en) | 2017-06-23 | 2017-06-23 | The denitration of boiler full load couples fume afterheat gradient utilization system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206989172U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107687634A (en) * | 2017-06-23 | 2018-02-13 | 山东泓奥电力科技有限公司 | The denitration of boiler full load couples fume afterheat gradient utilization system |
| CN114110638A (en) * | 2021-11-26 | 2022-03-01 | 西安热工研究院有限公司 | Automatic regulating system and method for efficient flue gas waste heat utilization of air preheater bypass |
| CN114768523A (en) * | 2022-03-31 | 2022-07-22 | 西安热工研究院有限公司 | SCR full-load denitration system of thermal generator set |
| CN115309201A (en) * | 2021-05-08 | 2022-11-08 | 葛朋 | Automatic control method for inlet flue gas temperature of denitration system of thermal power plant boiler |
-
2017
- 2017-06-23 CN CN201720739788.7U patent/CN206989172U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107687634A (en) * | 2017-06-23 | 2018-02-13 | 山东泓奥电力科技有限公司 | The denitration of boiler full load couples fume afterheat gradient utilization system |
| CN115309201A (en) * | 2021-05-08 | 2022-11-08 | 葛朋 | Automatic control method for inlet flue gas temperature of denitration system of thermal power plant boiler |
| CN114110638A (en) * | 2021-11-26 | 2022-03-01 | 西安热工研究院有限公司 | Automatic regulating system and method for efficient flue gas waste heat utilization of air preheater bypass |
| CN114110638B (en) * | 2021-11-26 | 2024-01-19 | 西安热工研究院有限公司 | Automatic regulating system and method for efficient flue gas waste heat utilization of bypass of air preheater |
| CN114768523A (en) * | 2022-03-31 | 2022-07-22 | 西安热工研究院有限公司 | SCR full-load denitration system of thermal generator set |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107687634A (en) | The denitration of boiler full load couples fume afterheat gradient utilization system | |
| CN106090880B (en) | A kind of machine stove set heat circulation afterheat recycling system | |
| CN206989172U (en) | The denitration of boiler full load couples fume afterheat gradient utilization system | |
| CN105180146B (en) | A kind of cogeneration power plant fume afterheat is multistage to reclaim utilization system | |
| CN207422196U (en) | A kind of CFB units combine afterheat utilizing system | |
| CN109611878B (en) | Boiler flue gas waste heat recovery system | |
| CN205690425U (en) | A kind of residual heat from boiler fume Multi-class propagation combines condensation water heating supply air system | |
| CN111981465A (en) | Flue gas waste heat utilization system | |
| CN110726153A (en) | Coal-fired power plant flue gas whitening elimination system and method | |
| CN104990063B (en) | Hot primary air waste heat utilization device coupled with air heater system in use | |
| CN104930496B (en) | Combined air supply heating depth waste heat recycling system of low-low-temperature economizer of coal-fired unit | |
| CN106439878A (en) | Flue gas waste heat utilizing system of condensed water heating boiler for air supply | |
| CN204665244U (en) | A kind of association system of phase-change heat-exchanger band heat exchangers for district heating | |
| CN208703902U (en) | The utilization system of fume afterheat and deslagging waste heat based on CFB boiler | |
| CN208253553U (en) | A kind of system improving the wide load operation thermal efficiency of coal unit | |
| CN206608968U (en) | A kind of power plant's heat reclaiming system | |
| CN205783017U (en) | A kind of smoke waste heat utilization system condensing the air-supply of water heating boiler | |
| CN109506246A (en) | A kind of water-borne formula steam air heater of two-stage combined heat | |
| CN113983488B (en) | Anti-blocking system and method for air preheater of coal-fired unit boiler | |
| CN108826269A (en) | The utilization system of fume afterheat and deslagging waste heat based on CFB boiler | |
| CN109373332A (en) | A kind of flue gas waste heat recovery system and method for coal-fired coupling garbage power | |
| CN107345656A (en) | A kind of steam raising plant using residual heat from boiler fume | |
| CN209431447U (en) | A kind of water-borne formula steam air heater of two-stage combined heat | |
| CN210688281U (en) | Flue gas treatment system | |
| CN209196907U (en) | Air preheater mentions the association system of effect coupling low-grade flue gas heat recovery and utilization |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |