CN208493812U - A kind of plume of condensation twice disappears white system - Google Patents
A kind of plume of condensation twice disappears white system Download PDFInfo
- Publication number
- CN208493812U CN208493812U CN201820813519.5U CN201820813519U CN208493812U CN 208493812 U CN208493812 U CN 208493812U CN 201820813519 U CN201820813519 U CN 201820813519U CN 208493812 U CN208493812 U CN 208493812U
- Authority
- CN
- China
- Prior art keywords
- flue gas
- heat exchanger
- plume
- water
- chimney
- 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
- Y02E20/30—Technologies for a more efficient combustion or heat usage
Abstract
Disappear white system the utility model relates to a kind of plume of condensation twice, the system includes the selective catalytic reduction denitration device being sequentially connected in series, electrostatic precipitator, Limestone-gypsum Wet Flue Gas Desulfurization Process tower, wet scrubber, air-introduced machine and chimney, flue gas waste heat utilization device is also set up between selective catalytic reduction denitration device and electrostatic precipitator, and flue gas water-cooling cooling device is also set up between air-introduced machine and chimney.The utility model is by taking above-mentioned measure to reduce exhaust gas temperature and humidity of flue gas, reduce the discharge of the condensables particulate matter such as soluble-salt, sulfuric acid mist, organic matter in flue gas, " white plume " phenomenon is efficiently solved caused by the chimney smoke direct emission of coal-burning power plant tail portion, mitigate white plume visual pollution caused by the masses of periphery, eliminates the scruple that people discharge coal steam-electric plant smoke.
Description
Technical field
The utility model relates to coal-burning power plant's tail flue gas processing systems, and in particular to a kind of plume of condensation twice disappears white system
System.
Background technique
Coal is most common non-renewable energy.Coal combustion can generate many pollutants, such as SO2、NOx, dust, heavy metal etc.,
Environmental protection standard is more stringent at present, for Air Pollutant Emission limit value: dust≤10mg/Nm3, SO2≤35mg/Nm3, NOx
≤50mg/Nm3, needing to adopt an effective measure controls the pollution of coal-burning power plant's tail flue gas.Wherein Limestone-gypsum Wet Flue Gas Desulfurization Process
(WFGD) SO can effectively be removed2And it is widely used in each high-power station, but since its technique is limited, that sprays in sweetening process is big
Amount absorption slurries will lead to humidity of flue gas and sharply increase, and finally in chimney breast, flue-gas temperature reaches under local atmospheric pressure
Saturation temperature, forms a large amount of white plumes, and the presence of a large amount of white plume of chimney outlet forms serious visual pollution, gives
The periphery masses bring psychological misgivings, make a very bad impression.
Chinese patent CN206504349U discloses a kind of system that water heating, drying elimination plume is received in condensation emission reduction, at least
Including wet desulphurization absorption tower, demister, flue gas condensing heat-exchanger rig, flue gas heat-exchanger rig, the flue gas of desulfurizing tower outlet
First pass through flue gas condensing heat-exchanger rig condensation moisture, after dried by Smoke-heating device, be finally discharged into atmosphere, the device
First pass through that condensation heat exchange device is cooling to be precipitated moisture, after dried by flue gas heat-exchanger rig, finally flue gas is made to be discharged into atmosphere,
But the program attempts to condense the steam in flue gas in higher position, but this only alleviates cigarette by improving exhaust gas temperature
The white plume phenomenon of chimney outlet, be it is palliative, without inherently termination flue gas saliferous containing wet caused by environment
It influences.
Utility model content
The purpose of this utility model is exactly to solve the above-mentioned problems and provides a kind of plume of condensation twice and disappear white system, solution
Serious white plume phenomenon in certainly current power plant's tail flue gas treatment process, can effectively remove white plume, subtract simultaneously
Film gas saliferous and influenced caused by environment, eliminate visual pollution, give up the Gu that the periphery masses discharge coal-fired plant flue gas
Consider.
The purpose of this utility model is achieved through the following technical solutions:
A kind of plume of condensation twice disappears white system, the system include the selective catalytic reduction denitration device being sequentially connected in series,
Electrostatic precipitator, Limestone-gypsum Wet Flue Gas Desulfurization Process tower, wet scrubber, air-introduced machine and chimney, in the selective catalytic reduction
Flue gas waste heat utilization device is also set up between denitrification apparatus and electrostatic precipitator, also sets up cigarette between the air-introduced machine and chimney
Gas water-cooling cooling device.
Further, the flue gas waste heat utilization device includes flue gas-working medium dividing wall type heat exchanger, the flue gas-working medium
The gas inlet of dividing wall type heat exchanger connects selective catalytic reduction denitration device, and exhanst gas outlet connects electrostatic precipitator, institute
It states and is equipped with heat exchanger tube in flue gas-working medium dividing wall type heat exchanger, which is connected to boiler of power plant circulation system.
Further, the boiler of power plant circulation system includes the water-cooled condenser being sequentially connected in series, condensation
Water pump, low-pressure heater, oxygen-eliminating device, feed pump, high-pressure heater, supercritical once-through boiler and condensing turbine, it is described
Heat exchanger is arranged between condensate pump and low-pressure heater.
Further, the water-cooled condenser connects recirculated cooling water, may be derived from the Changjiang river, water temperature is at 20 DEG C or so.
Further, the oxygen-eliminating device connection supply wetting system.
Further, the flue gas water-cooling cooling device includes flue gas-cooling water dividing wall type heat exchanger, and the flue gas-is cold
But the gas inlet of water dividing wall type heat exchanger connects air-introduced machine, and exhanst gas outlet connects chimney, the flue gas-cooling water dividing wall type
Heat exchanger tube is equipped in heat exchanger, which is connected to the water circulating pump for extracting low-temperature cooling water.
Further, the flue gas-cooling water dividing wall type heat exchanger outlet flue-gas temperature is lower than 50 DEG C.
Further, the heat exchanger tube is snakelike spiral fin coil.
Further, heat exchanger uses counter-flow arrangement.
A kind of plume of condensation twice provided by the utility model disappears white system, and flue gas passes through flue gas waste heat utilization device and cigarette
Gas water-cooling cooling device, after condensing twice, temperature is reduced to 50 DEG C or so, due to being provided with cigarette in electric precipitator entrance
Gas residual heat using device, carries out heat exchange cooling, and Mist heat recovering reduces vapor salt content in flue gas；In air-introduced machine and institute
It states and is provided with flue gas water-cooling cooling device between chimney, make part Water vapor condensation Cheng Shui, water has higher solubility to salt,
To reducing salt content in vapor, while cooling down and can reduce the water vapour content of discharge chimney.At this point, chimney import flue gas temperature
Degree is only 50 DEG C, and by cooling down twice, moisture content has been drastically reduced in flue gas, even if residual fraction steam, because of inner wall of stack
It is provided with the protection of anticorrosive titanium alloy material, will not be threatened to funnel body, to prevent flue gas from source
Containing cigarette containing the wet harm to environment, so as to form condenser system twice, be effectively reduced visual pollution caused by white plume with
And influence of the saliferous itself to environment in flue gas, the power plant periphery masses are given up to the misgivings of flue gas emission.Specifically have the advantage that
1, flue gas waste heat utilization device Mist heat recovering economizes on resources to heat-setting water, reduces coal consumption for power generation.
2, flue gas water-cooling cooling device makes flue gas condensing by recirculated cooling water, and wherein recirculated cooling water is derived from the Changjiang river, long
20 DEG C of river temperature or so, heat transfer temperature difference is larger between recirculated cooling water and flue gas, thus good effect of heat exchange, recirculated cooling water materials
It is convenient, it is low in cost, it is fed convenient for the later period.
3, it is greatly reduced by condensed flue gas, salt content twice, can reduce influence of the flue gas saliferous to environment.
4, chimney breast is not in the white plume phenomenon that generates due to Water vapor condensation in flue gas, and it is dirty to mitigate vision
Dye, gives up the misgivings that the people discharges coal-fired plant flue gas.
5, Tthe utility model system is laid out advantages of simple, and initial cost is small, and later period maintenance is at low cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of Tthe utility model system；
Fig. 2 is flue gas waste heat utilization device schematic diagram；
Fig. 3 is flue gas water-cooling cooling device schematic diagram；
In figure: selective catalytic reduction denitration device 1, flue gas waste heat utilization device 2, electrostatic precipitator 3, lime stone-stone
Cream wet desulfuration tower 4, wet scrubber 5, air-introduced machine 6, flue gas water-cooling cooling device 7, chimney 8.
Specific embodiment
The utility model is described in detail in the following with reference to the drawings and specific embodiments.
Embodiment
The white system referring to Fig. 1, a kind of plume of condensation twice disappears, which includes the selective catalytic reduction being sequentially connected in series
Denitrification apparatus (SCR) 1, Limestone-gypsum Wet Flue Gas Desulfurization Process tower (WFGD) 4, wet scrubber 5, draws at electrostatic precipitator (ESP) 3
Blower 6 and chimney 8 also set up fume afterheat using dress between selective catalytic reduction denitration device 1 and electrostatic precipitator 3
2 are set, flue gas water-cooling cooling device 7 is also set up between air-introduced machine 6 and chimney 8.
The process flow of coal-burning power plant's tail flue gas is that flue gas flows through selective catalytic reduction denitration device and carries out denitration work
Skill, then it is dusted technique to electric precipitator, in electric precipitator inlet, the temperature of flue gas is 220 DEG C or so, in electric precipitator
Entrance increases flue gas waste heat utilization device Mist heat recovering to heat-setting water, while reducing vapor saliferous in flue gas
Amount, this is condensation for the first time；Flue gas carries out sulfur removal technology, stone by electrostatic precipitator, then to Limestone-gypsum Wet Flue Gas Desulfurization Process tower
For lime stone-gypsum wet sulfur removal technology using lime stone or lime as desulfuration adsorbent, lime stone is ground at fine-powdered and water
Be stirred to be formed absorb slurries (when use lime for absorbent, pulverized limestone after digestion process with water mix formation absorption
Slurries), in Limestone-gypsum Wet Flue Gas Desulfurization Process tower, absorption slurries come into full contact with flue gas to be mixed to achieve the purpose that desulfurization, this
Technical process causes humidity of flue gas increased dramatically, to be easy to form white plume in chimney breast.Flue gas flows through lime stone-
Gypsum wet desulfurizing tower, then arrive wet scrubber, it is increasingly harsh with environmental protection standard, power plant install additional wet scrubber be intended into
For one step purifying smoke with meet the requirement of environmental protection, wet scrubber is to make dusty gas and water close contact, utilizes water droplet and particle
Inertial collision or using water and dust be sufficiently mixed effect and other effect arrested particles make particle increase or stay in
Reach the device of water and dust separation effect in fixed container, this technical process makes humidity of flue gas continue to increase, to hold
Easily white plume is formed in chimney breast.Flue gas flows through wet scrubber, then arrives air-introduced machine, and flue-gas temperature is 110 DEG C of left sides at this time
The right side, to eliminate coal-burning power plant's chimney breast white plume phenomenon, chimney drops flue-gas temperature after flue gas water-cooling cooling device
As low as 50 DEG C or so, then smoke stack emission is arrived, this is condensed for second.
Referring to Fig. 2, flue gas waste heat utilization device includes flue gas-working medium dividing wall type heat exchanger, water-cooled condenser passes through
Condensate pump connects low-pressure heater, and low-pressure heater connects oxygen-eliminating device, and oxygen-eliminating device connects high-pressure heater by feed pump, high
Heater is pressed to connect supercritical once-through boiler, supercritical once-through boiler connects condensing turbine, and condensing turbine connects water
Cold type condenser constitutes the thermodynamic cycle of boiler of power plant system.Flue gas-working medium dividing wall type heat exchanger includes gas inlet, and flue gas goes out
Mouthful, heat exchanger tube import, heat transfer tube outlet, heat exchanger tube.Gas inlet connects selective catalytic reduction denitration device, and exhanst gas outlet connects
Connect electrostatic precipitator；Heat exchanger import connects water-cooled condenser, and heat exchanger exit connects low-pressure heater.
The flue gas flow of flue gas waste heat utilization device are as follows: the temperature of flue gas is after selective catalytic reduction denitration device
220 DEG C or so, flue gas enters flue gas-working medium dividing wall type heat exchanger by selective catalytic reduction denitration device exhaust pass,
Flue gas and working medium carry out wall-type heat exchange in flue gas-working medium dividing wall type heat exchanger, and flue-gas temperature is made to be reduced to 150 DEG C or so, it
Flue gas enters electrostatic precipitator by electrostatic precipitator gas approach afterwards.
The working medium flow of flue gas waste heat utilization device are as follows: the part working medium extracted from water-cooled condenser, by water-cooled
Condenser enters heat exchanger tube to heat exchange manifold and absorbs fume afterheat, and the working medium after heating is using heat exchanger to low-pressure heater
Pipeline returns to low-pressure heater.
Referring to Fig. 3, flue gas water-cooling cooling device includes flue gas-cooling water dividing wall type heat exchanger, water circulating pump is from the Changjiang river
Cooling water is extracted, water circulating pump connects condenser and constitutes cooling water circulation, and flue gas-cooling water dividing wall type heat exchanger connects recirculated water
Pump.Flue gas-cooling water dividing wall type heat exchanger includes gas inlet, exhanst gas outlet, heat exchanger tube import, heat transfer tube outlet, heat exchanger tube.
Gas inlet connects air-introduced machine, and exhanst gas outlet connects chimney；Heat exchanger import connects water circulating pump, heat exchanger exit connection circulation
Water pump.
The flue gas flow of flue gas water-cooling cooling device are as follows: flue gas enters flue gas-cooling water partition by gas inlet flue
Formula heat exchanger, flue gas and cooling water carry out wall-type heat exchange in flue gas-cooling water dividing wall type heat exchanger, reduce flue-gas temperature
To 50 DEG C or so, flue gas enters chimney by exhanst gas outlet flue later.
The cooling water flow path of flue gas water-cooling cooling device are as follows: water circulating pump extracts the cooling water of low temperature, cooling water from the Changjiang river
Enter heat exchanger tube and flue gas heat exchange by heat exchanger tube inlet ductwork, cooling water returns to recirculated water by heat transfer tube outlet pipeline later
Pump, and it is ultimately discharged into the Changjiang river.
Heat exchanger tube is snakelike spiral fin coil, can effectively improve heat exchange efficiency.
Heat exchanger is counter-flow arrangement, and mean temperature difference is big, good effect of heat exchange.
It above are only the preferred embodiment of the utility model, it is all practical at this not to limit the utility model
Made any modifications, equivalent replacements, and improvements etc. within novel spirit and principle should be included in the utility model protection model
Within enclosing.
Claims (9)
- The white system 1. a kind of plume of condensation twice disappears, the system include the selective catalytic reduction denitration device (1) being sequentially connected in series, Electrostatic precipitator (3), Limestone-gypsum Wet Flue Gas Desulfurization Process tower (4), wet scrubber (5), air-introduced machine (6) and chimney (8), it is special Sign is, fume afterheat is also set up between the selective catalytic reduction denitration device (1) and electrostatic precipitator (3) using dress (2) are set, flue gas water-cooling cooling device (7) are also set up between the air-introduced machine (6) and chimney (8).
- The white system 2. a kind of plume of condensation twice according to claim 1 disappears, which is characterized in that the fume afterheat utilizes Device (2) includes flue gas-working medium dividing wall type heat exchanger, the connection selection of the flue gas-working medium dividing wall type heat exchanger gas inlet Property catalytic reduction denitration device (1), exhanst gas outlet connects electrostatic precipitator (3), in the flue gas-working medium dividing wall type heat exchanger Equipped with heat exchanger tube, which is connected to boiler of power plant circulation system.
- The white system 3. a kind of plume of condensation twice according to claim 2 disappears, which is characterized in that the boiler of power plant heating power The circulatory system includes the water-cooled condenser being sequentially connected in series, condensate pump, low-pressure heater, oxygen-eliminating device, feed pump, high pressure Heater, supercritical once-through boiler and condensing turbine, heat exchanger setting condensate pump and low-pressure heater it Between.
- The white system 4. a kind of plume of condensation twice according to claim 3 disappears, which is characterized in that the water-cooled condenser Connect recirculated cooling water.
- The white system 5. a kind of plume of condensation twice according to claim 3 disappears, which is characterized in that the oxygen-eliminating device connection is mended Water work.
- The white system 6. a kind of plume of condensation twice according to claim 1 disappears, which is characterized in that the flue gas water-cooled cooling Device (7) includes flue gas-cooling water dividing wall type heat exchanger, the connection of the flue gas-cooling water dividing wall type heat exchanger gas inlet Air-introduced machine (6), exhanst gas outlet connect chimney (8), heat exchanger tube are equipped in the flue gas-cooling water dividing wall type heat exchanger, this is changed Heat pipe is connected to the water circulating pump for extracting low-temperature cooling water.
- The white system 7. a kind of plume of condensation twice according to claim 6 disappears, which is characterized in that the flue gas-cooling water The flue-gas temperature of dividing wall type heat exchanger outlet is lower than 50 DEG C.
- Disappear white system 8. one kind according to claim 2 or 6 condenses plume twice, which is characterized in that the heat exchanger tube is Snakelike spiral fin coil.
- Disappear white system 9. one kind according to claim 2 or 6 condenses plume twice, which is characterized in that heat exchanger is using inverse Flow arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820813519.5U CN208493812U (en) | 2018-05-29 | 2018-05-29 | A kind of plume of condensation twice disappears white system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820813519.5U CN208493812U (en) | 2018-05-29 | 2018-05-29 | A kind of plume of condensation twice disappears white system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208493812U true CN208493812U (en) | 2019-02-15 |
Family
ID=65294342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820813519.5U Active CN208493812U (en) | 2018-05-29 | 2018-05-29 | A kind of plume of condensation twice disappears white system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208493812U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108465372A (en) * | 2018-05-29 | 2018-08-31 | 上海电力学院 | A kind of plume of condensation twice disappears white system |
| CN110559786A (en) * | 2019-08-28 | 2019-12-13 | 嘉兴新嘉爱斯热电有限公司 | flue gas whitening system and method based on partial organic Rankine cycle |
-
2018
- 2018-05-29 CN CN201820813519.5U patent/CN208493812U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108465372A (en) * | 2018-05-29 | 2018-08-31 | 上海电力学院 | A kind of plume of condensation twice disappears white system |
| CN110559786A (en) * | 2019-08-28 | 2019-12-13 | 嘉兴新嘉爱斯热电有限公司 | flue gas whitening system and method based on partial organic Rankine cycle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202769692U (en) | Thermodynamic system for coal-fired power plant boiler flue gas waste heat recovery and waste emission reduction | |
| CN205007792U (en) | Wet flue gas desulfurization flue gas processing mechanism | |
| CN108465372A (en) | A kind of plume of condensation twice disappears white system | |
| CN109045976A (en) | A kind of ammonia process of desulfurization flue gas disappears white waste heat depth recovery system and application | |
| CN106215563A (en) | Garbage-incineration smoke purifying processing system | |
| CN206823458U (en) | A kind of coal-burning power plant's energy-saving dedusting synergy cooperative intelligentization regulation and control remove white system | |
| CN207056315U (en) | A kind of ultra-clean discharge of flue gas and white cigarette eliminate integrated apparatus | |
| CN205084558U (en) | Flue gas two -stage condensation dust collector after desulfurization | |
| CN105536484A (en) | Pollutant pretreating tower condensing based on flue gas | |
| CN208493812U (en) | A kind of plume of condensation twice disappears white system | |
| CN108679638A (en) | A kind of condensation-reheating integration plume disappears white system | |
| CN105402753B (en) | A kind of net cigarette system for removing chimney of electric plant white plume | |
| CN106801884A (en) | A kind of smoke comprehensive processing unit and its method | |
| CN108190986A (en) | A kind of flue is classified pre- thermal evaporation desulfurization wastewater Zero discharging system and its method of work | |
| CN208720252U (en) | A kind of condensation-reheating integration plume disappears white system | |
| CN109663490A (en) | Wet desulfurization flue gas condenser system and flue gas condensing method with water balance function | |
| CN109157941A (en) | A kind of coal-fired plant flue gas dehumidifying emission-reducing system and technique | |
| CN109529583A (en) | UTILIZATION OF VESIDUAL HEAT IN is discarded for coal-burning power plant and eliminates the device and method of chimney white cigarette | |
| CN209490656U (en) | It is a kind of to disappear white device for fire coal tail gas desulphurization denitration dedusting | |
| CN208320385U (en) | A kind of elimination white cigarette device for wet fuel gas desulfurizing technology | |
| CN209495343U (en) | A kind of device of boiler chimney plume removing | |
| CN205351367U (en) | Get rid of clean cigarette system of power plant's chimney white plume | |
| CN110237639A (en) | A kind of flue gas spray takes off white system and method | |
| CN107101216B (en) | Back-pumping leakage-proof original clean flue gas back-heating type heat exchange system and working method thereof | |
| CN110433635A (en) | A kind of high-efficiency desulfurization eliminating white smoke device and technique |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |