CN107617296A - One kind is used for boiler exhaust gas waste heat and moisture recovery and gypsum catcher structure - Google Patents
One kind is used for boiler exhaust gas waste heat and moisture recovery and gypsum catcher structure Download PDFInfo
- Publication number
- CN107617296A CN107617296A CN201710984691.7A CN201710984691A CN107617296A CN 107617296 A CN107617296 A CN 107617296A CN 201710984691 A CN201710984691 A CN 201710984691A CN 107617296 A CN107617296 A CN 107617296A
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- China
- Prior art keywords
- gypsum
- smoke
- moisture
- catcher structure
- heat
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- 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
- Y02E20/30—Technologies for a more efficient combustion or heat usage
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses belong to the one kind of power plant boiler energy-conservation with pollutant removing technical field to be used for boiler exhaust gas waste heat and moisture recovery and gypsum catcher structure.The device is made up of three-level sub-device, and first order sub-device is made up of a gypsum catcher structure；Second level sub-device is made up of three hollow ceramic membranes smoke dewatering devices；Third level sub-device is made up of a hollow fiber composite membrane smoke dewatering device, and whole device is made up of connections such as pipeline, valve, flanges；Flue gas flows through the present apparatus, realizes the trapping of wet type fine particulates and the recovery of obvious heat of smoke, latent heat and moisture in flue gas after desulfurization, and sensible heat and the latent heat of recovery are all used for condensate moisturizing and desulfurizing tower moisturizing for heat-setting water, the moisture of recovery.The present invention has good spontaneity, can trap after desulfurizing tower in flue gas more than 60% wet type fine particulates, can recycle during power plant boiler is discharged fume more than 20% smoke discharging residual heat and moisture.
Description
Technical field
The present invention relates to power plant boiler energy-conservation and pollutant removing technical field, and in particular to one kind is used for boiler exhaust gas
Waste heat and moisture recovery and gypsum catcher structure.
Background technology
The energy resource structure in China, determine the power supply architecture based on coal.By in by the end of July, 2016, Chinese 6MW and more than
15.35 hundred million kilowatts of power plant unit capacity, wherein 10.21 hundred million kilowatts of fired power generating unit, accounting 67.54%.Planned according to " 13 ",
The year two thousand twenty whole nation capacity of installed generator will reach 19.35 hundred million kilowatts, and wherein coal Denso machine control is within 1,100,000,000 kilowatts, accounting
56.85%, a high position is still occupied, electric structure general layout of the China based on coal electricity will not be substituted in a short time, the clean and effective profit of coal electricity
With one of inevitable choice direction for being China's energy transition.
Possess a considerable number of vapor resource in power plant boiler smoke evacuation, especially after wet desulphurization, boiler row
Cigarette can reach wet saturation state, and the vapor volume fraction in smoke evacuation is up to 12% or so, and these vapor carry largely simultaneously
Latent heat.It is inevitable if can be reclaimed by way of making Water vapor condensation to the moisture in boiler exhaust gas after wet desulphurization
Can substantial amounts of waste heat and moisture in recovered flue gas simultaneously, so as to greatly improve the efficiency of boiler.In recent years, this seminar passes through
Research demonstrates hollow ceramic membranes and hollow fiber composite membrane has good prospect in terms of recovery smoke discharging residual heat and moisture, in
Empty ceramic membrane and hollow fiber composite membrane to the capture rate of moisture in flue gas up to more than 20%, and with corrosion resistance is strong, recovery
The advantages that water quality is higher.
At present, influence that opinions vary to caused by haze on wet desulphurization, it is believed that after wet desulphurization makes desulfurization
Flue gas contains a large amount of gypsum drops and wet type fine particulates, has been further exacerbated by the formation of haze, and these gypsum drops
And wet type fine particulates easily cause the blocking of hollow ceramic membranes and hollow fiber composite membrane.For this problem, this problem
Group by having researched and proposed the gypsum catcher structure based on ceramic membrane, the device can trap in flue gas after desulfurization 60% with
On gypsum drop and wet type fine particulates, trapping work well.
The content of the invention
It is an object of the invention to provide one kind to be used for boiler exhaust gas waste heat and moisture recovery and gypsum catcher structure, its
It is characterised by：The device is made up of three-level sub-device, and first order sub-device is made up of a gypsum catcher structure；The second level
Sub-device is made up of three hollow ceramic membranes smoke dewatering devices；Third level sub-device is taken off by a hollow fiber composite membrane flue gas
Water installations are formed, and whole device is made up of connections such as pipeline, valve, flanges；Ceramic-film tube in gypsum catcher structure
For beam in being staggered in arrangement, ceramic membrane tube bank lower end is water inlet, is connected with header, ceramic membrane tube bank upper end closed, apart from gypsum liquid
Drip 300mm at the top of capturing device；In being staggered in arrangement, ceramic membrane is restrained for ceramic membrane tube bank in hollow ceramic membranes smoke dewatering device
Lower end is water inlet, is connected with header, and ceramic membrane tube bank upper end is delivery port, is connected with header, wherein used hollow pottery
From outside to inside radially, aperture is sequentially reduced porcelain film, and Nano grade is basically reached positioned at outermost aperture, is mostly
0.005 ~ 2 μm, inside and outside footpath is 8,12mm, a length of 800mm；Composite fiber membrane in hollow fiber composite membrane smoke dewatering device
In being staggered in arrangement, each fiber compound film component is made up of component 45 composite fiber membranes, above and below fiber compound film component
End is connected with vacuum pipe；Whole device is arranged in rectangular flue, and gypsum catcher structure and hollow pottery are provided by water pump
The power of porcelain film smoke dewatering device reclaimed water flowing；The vacuum in fiber compound film component is provided by vavuum pump.
Beneficial effects of the present invention can trap after desulfurizing tower in flue gas more than 60% wet type fine particle for the present invention
Thing, in power plant boiler smoke evacuation more than 20% smoke discharging residual heat and moisture can be recycled, one is provided for the water-saving and emission-reducing of power plant
Individual new direction, and the management of operating personnel is not needed, save human resources.
Brief description of the drawings
Fig. 1 is boiler exhaust gas waste heat and moisture recovery and the structural representation of gypsum catcher structure
Fig. 2 is the structural representation of gypsum catcher structure,
Fig. 3 is the structural representation of hollow ceramic membranes smoke dewatering device,
Fig. 4 is the structural representation of hollow fiber composite membrane smoke dewatering device.
Embodiment
The invention provides one kind to be used for boiler exhaust gas waste heat and moisture recovery and gypsum catcher structure, with reference to
The present invention is described further for the drawings and specific embodiments.
Fig. 1 show boiler exhaust gas waste heat and moisture recovery and the structural representation of gypsum catcher structure.The device
Be arranged in the rectangular flue after desulfurizing tower, flue gas from the inlet to the outlet successively with gypsum catcher structure 10, hollow ceramic
Film smoke dewatering device 3, hollow fiber composite membrane smoke dewatering device 4 contact, and water pump opens in the pipeline of opening chemical water workshop 1
Closing, the ceramic membrane that the water in chemical water workshop is first flowed under the driving effect of water pump in gypsum catcher structure 10 is restrained, by
Upper end closed is restrained in ceramic membrane, high pressure can be formed in ceramic membrane tube bank, water can outwards be permeated by ceramic membrane tube wall, made pottery
Moisture film uniformly, stably, fine and close is formed outside porcelain membrane tube bundle, wet type fine particulates are met moisture film and are captured；The water in chemical water workshop 1
Flow into afterwards in the ceramic membrane tube bank of hollow ceramic membranes smoke dewatering device 3, and vacuum is formed in ceramic membrane tube bank, in flue gas
Vapor under vacuum, in ceramic membrane bundle profile into capillary condensation, and brings back to water tank by the water in chemical water workshop 1
Continued cycling through in 9；Hollow fiber composite membrane smoke dewatering device 4, can be in fiber compound film component in the presence of vavuum pump 6
Vacuum is formed, the vapor in flue gas under vacuum, penetrates composite fiber membrane surface and converged in composite fiber membrane,
It is flowed into water tank 9 and continues cycling through.Sensible heat that whole device is recovered to, latent heat, for the condensate in heat-setting water system.
Claims (1)
1. one kind is used for boiler exhaust gas waste heat and moisture recovery and gypsum catcher structure, it is characterised in that：The device is by three
Level sub-device composition, first order sub-device are made up of a gypsum catcher structure；Second level sub-device is by three hollow potteries
Porcelain film smoke dewatering device is formed；Third level sub-device is made up of a hollow fiber composite membrane smoke dewatering device, whole dress
Put and be made up of connections such as pipeline, valve, flanges；Ceramic membrane tube bank in gypsum catcher structure is in be staggered in arrangement, ceramics
Membrane tube bundle lower end is water inlet, is connected with header, ceramic membrane tube bank upper end closed；Pottery in hollow ceramic membranes smoke dewatering device
For porcelain membrane tube bundle in being staggered in arrangement, ceramic membrane tube bank lower end is water inlet, is connected with header, and ceramic membrane tube bank upper end is delivery port,
Connect with header；Fiber compound film component in hollow fiber composite membrane smoke dewatering device is in be staggered in arrangement, each fiber
Composite membrane component is made up of 45 composite fiber membranes, and the upper and lower side of fiber compound film component is connected with vacuum pipe；Whole device
It is arranged in rectangular flue, is flowed by water pump offer gypsum catcher structure and hollow ceramic membranes smoke dewatering device reclaimed water
Power；The vacuum in fiber compound film component is provided by vavuum pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710984691.7A CN107617296A (en) | 2017-10-20 | 2017-10-20 | One kind is used for boiler exhaust gas waste heat and moisture recovery and gypsum catcher structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710984691.7A CN107617296A (en) | 2017-10-20 | 2017-10-20 | One kind is used for boiler exhaust gas waste heat and moisture recovery and gypsum catcher structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107617296A true CN107617296A (en) | 2018-01-23 |
Family
ID=61091779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710984691.7A Pending CN107617296A (en) | 2017-10-20 | 2017-10-20 | One kind is used for boiler exhaust gas waste heat and moisture recovery and gypsum catcher structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107617296A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112957867A (en) * | 2021-02-05 | 2021-06-15 | 大唐环境产业集团股份有限公司 | Device for capturing flue gas moisture by ceramic membrane in cooperation with corona discharge |
| CN114225589A (en) * | 2021-12-15 | 2022-03-25 | 东莞理工学院 | Pollutant removal, moisture and waste heat recovery integrated device and method based on hydrophilic hollow fiber membrane |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103463942A (en) * | 2013-09-10 | 2013-12-25 | 华北电力大学 | Device and method for gathering water vapor in exhaust gas based on hollow fiber membrane |
| CN105299676A (en) * | 2015-09-16 | 2016-02-03 | 华北电力大学 | Smoke moisture and waste heat recovery device based on hollow micro-nano porous ceramic membranes |
| CN105477955A (en) * | 2015-04-27 | 2016-04-13 | 华北电力大学 | Micro-nano ceramic-tube-beam water-film type integrated removal apparatus for flue gas pollutants |
| CN107062298A (en) * | 2017-05-26 | 2017-08-18 | 华北电力大学 | The system and heat exchange module of vapor and its heat in a kind of embrane method recovered flue gas |
-
2017
- 2017-10-20 CN CN201710984691.7A patent/CN107617296A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103463942A (en) * | 2013-09-10 | 2013-12-25 | 华北电力大学 | Device and method for gathering water vapor in exhaust gas based on hollow fiber membrane |
| CN105477955A (en) * | 2015-04-27 | 2016-04-13 | 华北电力大学 | Micro-nano ceramic-tube-beam water-film type integrated removal apparatus for flue gas pollutants |
| CN105299676A (en) * | 2015-09-16 | 2016-02-03 | 华北电力大学 | Smoke moisture and waste heat recovery device based on hollow micro-nano porous ceramic membranes |
| CN107062298A (en) * | 2017-05-26 | 2017-08-18 | 华北电力大学 | The system and heat exchange module of vapor and its heat in a kind of embrane method recovered flue gas |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112957867A (en) * | 2021-02-05 | 2021-06-15 | 大唐环境产业集团股份有限公司 | Device for capturing flue gas moisture by ceramic membrane in cooperation with corona discharge |
| CN114225589A (en) * | 2021-12-15 | 2022-03-25 | 东莞理工学院 | Pollutant removal, moisture and waste heat recovery integrated device and method based on hydrophilic hollow fiber membrane |
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