CN104214789B - Smoke waste heat extraction tower for thermal power plant - Google Patents
Smoke waste heat extraction tower for thermal power plant Download PDFInfo
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- CN104214789B CN104214789B CN201310211126.9A CN201310211126A CN104214789B CN 104214789 B CN104214789 B CN 104214789B CN 201310211126 A CN201310211126 A CN 201310211126A CN 104214789 B CN104214789 B CN 104214789B
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- stage nitration
- extraction column
- spray equipment
- power plant
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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
Abstract
The invention provides a smoke waste heat extraction tower for a thermal power plant. The smoke waste heat extraction tower comprises a first-section extraction tower body and a second-section extraction tower body. A smoke inlet is formed in one end of the first-section extraction tower body. The other end of the first-section extraction tower body is connected with the second-section extraction tower body. A first-section spraying device is arranged in the first-section extraction tower body. A first-section water tank is arranged on the lower portion of the first-section spraying device. A first-section demister is arranged behind the first-section spraying device. A second-section spraying device is arranged on the upper portion inside the second-section extraction tower body. A second-section demister is arranged above the second-section spraying device. A smoke outlet is formed above the second-section demister. A second-section water tank is arranged on the lower portion of the second-section extraction tower body. Due to the structural design, by means of the smoke waste heat extraction tower, waste heat of smoke can be sufficiently extracted, and the heat exchange efficiency and the energy utilization rate can be increased.
Description
Technical field
The present invention relates to a kind of waste heat extraction equipment of thermal power plant boiler smoke evacuation, particularly coal-burning power plant and fuel gas-steam
Waste heat extraction equipment in combined-cycle power plant's smoke waste heat utilization system.
Background technology
About more than 140 DEG C, the exhaust gas temperature of conventional Gas Generator Set is about on 100 DEG C of left sides for the exhaust gas temperature of conventional coal unit
The right side, because flue-gas temperature now is low, energy-flux density is little, not with acting generating capacity, if these flue gases are directly discharged to
Air, will cause the waste of the energy, but for thermal power plant unit, recycle the low temperature exhaust heat of this partial fume, and realizing can depth of origin
Degree is utilized, in the today for the energy problem for affecting national development strategy meaning, with extremely important meaning.
Industrial conventional heat exchange mode can be divided into direct contact type, dividing wall type and heat accumulating type, for carrying for fume afterheat
Take, because flue gas flow is big and condensed fluid has corrosivity, and the heat transfer coefficient of dividing wall type and regenerative heat-exchange is relatively low, and heat exchange sets
Standby volume is big, and floor space is big.
The content of the invention
Technical problem solved by the invention is to provide a kind of simple structure, efficiency high and the good fume afterheat of the suitability
Extraction equipment.
The technical scheme is that:A kind of remaining heat of flue gas from steam power plant extraction column, comprising one section of extraction column body and two-stage nitration
Extraction column body；One section of extraction column body one end is provided with smoke inlet, and the other end is connected with two-stage nitration extraction column body；This section
Extraction column body interior arranges one section of spray equipment, and one section of spray equipment lower section is one section of water tank, after one section of spray equipment
Side is provided with one section of demister；The two-stage nitration extraction column body interior top is equipped with two-stage nitration spray equipment, on the two-stage nitration spray equipment
Side arranges two-stage nitration demister, and the two-stage nitration demister top arranges exhanst gas outlet, and the two-stage nitration extraction column body lower section is two-stage nitration water tank.
One section of spray equipment is some one section of showers, and one section of shower arranges some one section of nozzles；The two-stage nitration spray
Shower device is some two-stage nitration showers, and the two-stage nitration shower arranges some two-stage nitration nozzles.
The two-stage nitration extraction column body is higher than one section of extraction column, and the two-stage nitration spray equipment is higher than one located at two-stage nitration extraction column body
In the space of section extraction column body.
A point liquid dividing plate is provided between one section of water tank and two-stage nitration water tank.
One section of water tank is provided with one section of outlet, one section of sewage draining exit, one section of liquidometer, one section of high level siren and one section
Low liquid level siren.
The two-stage nitration water tank is provided with two-stage nitration outlet, two-stage nitration sewage draining exit, two-stage nitration liquidometer, two-stage nitration high level siren, two-stage nitration
Low liquid level siren and overfall.
The two-stage nitration outlet is connected with one section of spray equipment, and one section of spray equipment is supplied water.
One section of demister rear arranges one section outlet thermometer, and the two-stage nitration demister top arranges second stage exit temperature
Meter.
Beneficial effects of the present invention are：A kind of thermal power plant boiler smoke discharging residual heat extraction equipment is provided, is completed in absorption tower
The extraction of fume afterheat, it is adaptable to the utilization of remaining heat of flue gas from steam power plant, the structure design of this fume afterheat extraction column can be carried fully
The waste heat of flue gas is taken out, heat exchange efficiency and energy utilization rate is improved.
Description of the drawings
Fig. 1 is the volume rendering structural representation of the present invention.
Specific embodiment
Of the invention a kind of remaining heat of flue gas from steam power plant extraction column as shown in Figure 1, carries comprising one section of extraction column body 3 and two-stage nitration
Take tower body 15；One section of one end of extraction column body 3 is provided with smoke inlet 2, and the other end is connected with two-stage nitration extraction column body 15；Should
One section of inside of extraction column body 3 arranges one section of spray equipment, and one section of spray equipment is some one section of showers 5, and this section sprays
Shower pipe 5 arranges some one section of nozzles 6, and one section of spray equipment lower section is one section of water tank 1, and one section of spray equipment rear is provided with one
Section demister 7；The inner upper of two-stage nitration extraction column body 15 is equipped with two-stage nitration spray equipment, and the two-stage nitration spray equipment is some two
Section shower 8, the two-stage nitration shower 8 arranges some two-stage nitration nozzles 9, and the two-stage nitration spray equipment top arranges two-stage nitration demister 10,
The top of two-stage nitration demister 10 arranges exhanst gas outlet 12, and the lower section of two-stage nitration extraction column body 15 is two-stage nitration water tank 18.One section, two-stage nitration
Shower and one section, the number of two-stage nitration nozzle, can be configured according to demand.
The two-stage nitration extraction column body 15 is higher than one section of extraction column, and the two-stage nitration spray equipment is high located at two-stage nitration extraction column body 15
In the space of one section of extraction column body 3.
A point liquid dividing plate 23 is provided between one section of water tank 1 and two-stage nitration water tank 18, one section, two-stage nitration water tank can be separated.
One section of water tank 1 is provided with one section of 25, one section of outlet, 24, one section of sewage draining exit, 28, one section of high level alarm of liquidometer
Device 26 and one section of low liquid level siren 27.The two-stage nitration water tank 18 is provided with two-stage nitration outlet 21, two-stage nitration sewage draining exit 20, two-stage nitration liquidometer
22nd, two-stage nitration high level siren 17, two-stage nitration low liquid level siren 19 and overfall 16.The two-stage nitration outlet 21 and one section of spray dress
Connection is put, one section of spray equipment is supplied water.The water that one section of outlet is discharged is used as absorbing flue gas heat（It is heated）'s
Water, in the system that hot water is needed in production.
One section of rear of demister 7 arranges one section outlet thermometer 14, and the top of two-stage nitration demister 10 arranges second stage exit
Thermometer 11, it can measure the temperature of one section of flue gas and two-stage nitration exhanst gas outlet to adjust the flow of recirculated water.
The low-temperature flue gas that coal unit or gas-steam combined cycle set are discharged are from smoke inlet 2 into one section of extraction
In tower body 3, the hot water atomized drop direct contact heat transfer sprayed with one section of nozzle 6 at one section of spray equipment, after heating
Hot water drop is fallen in one section of water tank 1 due to action of gravity, and the flue gas after heat is extracted removes carrying by one section of demister 7
Drop after enter two-stage nitration extraction column body 15 in, flue gas rise at two-stage nitration spray equipment with two-stage nitration nozzle 9 spray circulation
Cooling water atomized drop direct contact heat transfer, the circulating cooling water drop after heating falls into two-stage nitration water tank 18 due to action of gravity
In, then flow out through one section of spray equipment from two-stage nitration outlet 21 and spray into one section of extraction column 3.In two-stage nitration extraction column body, heat
Flue gas after amount is extracted once again removed by two-stage nitration demister 10 and discharged by exhanst gas outlet 12 after the drop of carrying.
Wherein, one section of liquidometer 28 and two-stage nitration liquidometer 20 be disposed to measure one section of water tank 1 and two-stage nitration water tank 18
In liquid level controlling the spray flux and discharge of recirculated water.
One section of high level alarm 26, one section of low liquid level warning device 27, two-stage nitration high level alarm 17 and two-stage nitration low liquid level
Alarm 19 be disposed to when the liquid level in one section of cistern 1 and two-stage nitration water tank 18 exceed allowed scope when reported
Alert prompting.
Being disposed to of one section of sewage draining exit 24 and two-stage nitration sewage draining exit 20 is discharged in one section of cistern 1 and two-stage nitration water tank 18
Precipitation.
When being disposed to liquid level and increasing to over the liquid level that equipment is allowed rapidly of overfall 16, recirculated water can
It is rapid to discharge extraction column, it is ensured that stablizing for heat exchange is carried out, protect the safe and reliable of extraction column.
The setting of above-mentioned each device, can realize that its corresponding function is defined, particular location can be carried out according to demand
Arrange.
Claims (8)
1. a kind of remaining heat of flue gas from steam power plant extraction column, it is characterised in that comprising one section of extraction column body and two-stage nitration extraction column body；
One section of extraction column body one end is provided with smoke inlet, and the other end is connected with two-stage nitration extraction column body；
One section of extraction column body interior arranges one section of spray equipment, is one section of water tank below one section of spray equipment, this section
Spray equipment rear is provided with one section of demister；
The two-stage nitration extraction column body interior top is equipped with two-stage nitration spray equipment, and the two-stage nitration spray equipment top arranges two-stage nitration demisting
Device, the two-stage nitration demister top arranges exhanst gas outlet, and the two-stage nitration extraction column body lower section is two-stage nitration water tank；
The two-stage nitration water tank is provided with two-stage nitration outlet, and the two-stage nitration outlet is connected with one section of spray equipment, and one section of spray equipment is entered
Row supplies water；
The two-stage nitration extraction column body is higher than one section of extraction column, and the two-stage nitration spray equipment is carried located at two-stage nitration extraction column body higher than one section
Take in the space of tower body.
2. remaining heat of flue gas from steam power plant extraction column as claimed in claim 1, it is characterised in that one section of spray equipment is some
Section shower, one section of shower arranges some one section of nozzles；The two-stage nitration spray equipment is some two-stage nitration showers, the two-stage nitration spray
Shower pipe arranges some two-stage nitration nozzles.
3. remaining heat of flue gas from steam power plant extraction column as claimed in claim 1, it is characterised in that one section of water tank and two-stage nitration water tank it
Between be provided with a point liquid dividing plate.
4. remaining heat of flue gas from steam power plant extraction column as claimed in claim 1, it is characterised in that one section of extraction column body is arch side
Shape tower body, the two-stage nitration extraction column body is vertical and cylindrical tower body.
5. remaining heat of flue gas from steam power plant extraction column as claimed in claim 1, it is characterised in that the smoke inlet is square for arch, should
Exhanst gas outlet is truncated cone-shaped.
6. remaining heat of flue gas from steam power plant extraction column as claimed in claim 1, it is characterised in that one section of water tank is provided with one section of water outlet
Mouth, one section of sewage draining exit, one section of liquidometer, one section of high level siren and one section of low liquid level siren.
7. remaining heat of flue gas from steam power plant extraction column as claimed in claim 1, it is characterised in that the two-stage nitration water tank is provided with two-stage nitration blowdown
Mouth, two-stage nitration liquidometer, two-stage nitration high level siren, two-stage nitration low liquid level siren and overfall.
8. remaining heat of flue gas from steam power plant extraction column as claimed in claim 1, it is characterised in that one section of demister rear arranges
Section outlet temperature meter, the two-stage nitration demister top arranges second stage exit thermometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310211126.9A CN104214789B (en) | 2013-05-31 | 2013-05-31 | Smoke waste heat extraction tower for thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310211126.9A CN104214789B (en) | 2013-05-31 | 2013-05-31 | Smoke waste heat extraction tower for thermal power plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104214789A CN104214789A (en) | 2014-12-17 |
| CN104214789B true CN104214789B (en) | 2017-05-17 |
Family
ID=52096549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310211126.9A Active CN104214789B (en) | 2013-05-31 | 2013-05-31 | Smoke waste heat extraction tower for thermal power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104214789B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4370038B2 (en) * | 2000-04-17 | 2009-11-25 | 三菱重工業株式会社 | Exhaust gas cooling system |
| CN201110536Y (en) * | 2007-09-24 | 2008-09-03 | 广州德上能源技术有限公司 | Flue gas waste heat recovery energy-saving system |
| JP2010084957A (en) * | 2008-09-30 | 2010-04-15 | Hitachi Zosen Corp | Exhaust gas cooling tower |
| CN201437071U (en) * | 2009-01-21 | 2010-04-14 | 成都华西工业气体有限公司 | Multifunctional absorption tower for flue Gas desulfurization |
| CN201695008U (en) * | 2010-05-27 | 2011-01-05 | 山西阳煤丰喜肥业(集团)有限责任公司 | Scrubber tower |
| CN203298322U (en) * | 2013-05-31 | 2013-11-20 | 中国电力工程顾问集团华北电力设计院工程有限公司 | Thermal power plant smoke waste heat extracting tower |
-
2013
- 2013-05-31 CN CN201310211126.9A patent/CN104214789B/en active Active
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| Publication number | Publication date |
|---|---|
| CN104214789A (en) | 2014-12-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 100120 Beijing city Xicheng District Street No. 24 Applicant after: NORTH CHINA POWER ENGINEERING CO., LTD. OF CHINA POWER ENGINEERING CONSULTING GROUP Address before: 100120 Beijing city Xicheng District Street No. 24 Applicant before: North China Electric Power Design Institute of China Power Engineering Consulting Group Corporation |
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| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |