CN208244446U - The system that a kind of flue gas takes off bletilla energy conservation deep removal pollutant - Google Patents
The system that a kind of flue gas takes off bletilla energy conservation deep removal pollutant Download PDFInfo
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- CN208244446U CN208244446U CN201821301180.7U CN201821301180U CN208244446U CN 208244446 U CN208244446 U CN 208244446U CN 201821301180 U CN201821301180 U CN 201821301180U CN 208244446 U CN208244446 U CN 208244446U
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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
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Abstract
The utility model discloses a kind of flue gases to take off the system that pollutant is removed in depth in bletilla energy conservation, including desulfurizing tower, it further include that flue gas takes off white device for deep cleaning, flue gas takes off is successively arranged flue gas rectifier, evaporating heat exchanger, condensing heat exchanger and chimney from bottom to up in white device for deep cleaning；Evaporating heat exchanger is connected with the refrigerant evaporator taken off outside white device for deep cleaning set on flue gas, and condensing heat exchanger is connected with the refrigerant condenser taken off outside white device for deep cleaning set on flue gas；Sealing is equipped with the pipeline loop of refrigerant tubing between refrigerant evaporator and refrigerant condenser, flue gas below flue gas rectifier takes off and takes off white device for deep cleaning smoke inlet equipped with flue gas on white device for deep cleaning, flue gas, which takes off, to be connected between white device for deep cleaning smoke inlet and the desulfurizing tower exhanst gas outlet at the top of desulfurizing tower by flue, and flue is equipped with air-introduced machine.By the utility model, it can effectively carry out flue gas and take off white and reduce the pollutant emission in flue gas.
Description
Technical field
The utility model belongs to wet flue gas and " takes off white " technical field, and in particular to a kind of de- bletilla energy conservation depth of flue gas is de-
The system of depollution object.
Background technique
The white cigarette that wet desulphurization generates, is that desulfurizing agent solution and high-temperature flue gas directly contact, flue gas is made to be humidified cooling, is taken off
Moisture in sulphur agent solution then absorbs heat vaporization, and the vapor total amount in flue gas is caused to greatly increase.With the progress of sweetening process,
Flue-gas temperature gradually decreases, and the ability that the reduction of flue-gas temperature makes flue gas carry steam reduces.When steam total amount has exceeded flue gas
Carrying capacity, the water in the neat stress of smoke stack emission cannot sufficiently dilute by atmosphere in time, what discharge flue gas and atmosphere were formed
The dew-point temperature of local mixing gas is higher than mixed gas dry-bulb temperature, and just having a large amount of Water vapor condensation is small water droplet, warp
White cigarette is formed after smoke stack emission.Either which kind of wet processing often contains desulfurizing agent, byproduct, three oxygen in the white cigarette of formation
Change sulphur, there are also aerosols.
From the middle ten days and the last ten days in 2017, various regions put into effect atmosphere successively and have administered new rule.The place mark in Shanghai, Zhejiang, three ground of Tianjin
The unprecedented Con trolling index for referring to white cigarette discharge in standard: " Shanghai City Thermal generation unit environmental protection sequence method " is pointed out:
" environmental protection sequence calculation method in 2017: sulfur dioxide, nitrogen oxides, flue dust weight are respectively 0.2,0.3,0.2；It completes to eliminate
Gypsum rain descends slowly and lightly and the unit assignment 0 of coloured plume, unfinished unit assignment 1, weight 0.1；The machine that coal yard all seals
Group assignment 0, unfinished unit assignment 1, weight 0.2 "；The exposure draft in the Zhejiang Province environmental protection Room is emphasized: " being located at city master
The coal-fired electric generation furnace of city and surrounding air sensitizing range should take fibre selection and other effective measures to eliminate gypsum rain, coloured
Phenomena such as plume "；In the notice that Tianjin Environmental Protection Agency prints and distributes, specify that " gypsum rain has the development of the key industrys such as thermoelectricity, steel
The emphasis of color plume " control, and specify the definition of coloured plume.
As clear stipulaties flue gas exhaust gas temperature emission request standard has been put into effect in Tianjin in 2018, short 1 year when
Between, illustrate that flue gas takes off white improvement and promoted from extensive style observation qualitative requirement to accurate quantification monitoring management, flue gas " taking off white " is very
It is possible that each place can be written into quickly or national regulation standard is strictly supervised, wide market and rapidly.
At present routine flue gas take off white technology be broadly divided into condensation method, temperature-raising method, condensation thermal method, main technical principle are again
It is exchanged heat using heat exchanger, lowers water vapour content and flue gas saturation degree in flue gas, and then realize that flue gas " takes off white " effect.This
Class technological system is relatively simple directly.But mainly face following problem:
1. for conventional chilling mode (cold water tower cooler, ventilating and cooling etc.), the temperature such as recirculated cooling water, air are higher,
Heat exchange property is limited, and general flue gas cools within 3 degree, and cooling range is limited, is not able to satisfy some areas emission request；
2. since Industrial Boiler exhaust gas volumn is larger, for conventional chilling heat exchange mode, required heat exchanger internal circulating load is big, size
Larger, installation space is limited；
3. such heat exchanger technology usually faces fortune caused by blocking, corrosion etc. for previous power plant GGH operational effect
Row increased costs；
4. temperature-raising method technology building and operating cost are higher, in practical applications almost without energy-conserving action, without economic valence
Value even needs to spend high operating cost.
Summary of the invention
For the defects in the prior art and insufficient, the utility model provides a kind of de- bletilla energy conservation deep removal of flue gas
The system of pollutant overcomes existing Wet Flue Gas Desulfurization Technique to be difficult to reach increasing discharge standard, and especially flue gas is " white
The defect effectively administered is not yet received in cigarette ".
In order to achieve the above objectives, the utility model takes the following technical solution:
The system that a kind of flue gas takes off bletilla energy conservation deep removal pollutant, including desulfurizing tower, further include that flue gas takes off white depth
Purification device, flue gas takes off is successively arranged flue gas rectifier, evaporating heat exchanger, condensing heat-exchange from bottom to up in white device for deep cleaning
Device and chimney；
The evaporating heat exchanger is connected with the refrigerant evaporator taken off outside white device for deep cleaning set on flue gas, the condensation
Heat exchanger is connected with the refrigerant condenser taken off outside white device for deep cleaning set on flue gas；
Sealing is equipped with the pipeline loop of refrigerant tubing between refrigerant evaporator and refrigerant condenser, in refrigerant
Evaporator is equipped with compressor to the first refrigerant tubing between refrigerant condenser, steams in refrigerant condenser to refrigerant
Heat exchanger and throttle valve are successively arranged on second refrigerant pipeline between hair device；
Flue gas below the flue gas rectifier takes off and takes off white device for deep cleaning equipped with flue gas on white device for deep cleaning
Smoke inlet, flue gas takes off to be passed through between white device for deep cleaning smoke inlet and desulfurizing tower exhanst gas outlet at the top of desulfurizing tower
Flue connection, flue are equipped with air-introduced machine.
The utility model also includes following technical characteristic:
Optionally, the desulfurizing tower inner upper is equipped with slurry nozzle, and slurry nozzle is connected to desulfurizing tower by slurries pipeline
Lower lumen；On the slurries pipeline be equipped with slurry circulating pump, to by the slurries in desulfurizing tower lower lumen pump to
Slurry nozzle is sprayed；Desulfurizing tower smoke inlet is equipped in desulfurizing tower tower wall below the slurry nozzle.
Optionally, flue gas analysis device is connected on the chimney；The flue gas analysis device is that CEMS flue gas divides online
Analysis apparatus.
Optionally, the desulfurizing tower, which with flue gas takes off white device for deep cleaning bottom and passes through pipeline, is connected to collecting pit.
Optionally, the refrigerant evaporator and refrigerant condenser are sequentially arranged in flue gas and take off white device for deep cleaning
Interior, wherein (gasification that Water vapor condensation discharges predominantly in flue gas is latent for absorbing low-temperature flue gas waste heat for refrigerant evaporator
Heat), refrigerant condenses into liquid by gaseous state in refrigerant condenser, releases amount of heat, heats up for flue gas.
Preferably, taking off the refrigerant tubing in white device for deep cleaning positioned at the flue gas is coil pipe or finned tube；It is described
Refrigerant evaporator and refrigerant condenser coiled tube arrangements take off in white device for deep cleaning in flue gas, and refrigerant changes indirectly with flue gas
Heat, for flue gas condensing and heating reheating；Due to smoke components complexity, especially at refrigerant evaporator end, flue gas condensing liquid is in
Acid (PH is 3 or so), can generate attrition and attack to pipeline, therefore refrigerant tubing and need to adopt with smoke contacts partial tube
With the stronger material of rotproofness, meanwhile, to realize refrigerant evaporator and refrigerant condenser and the better heat and mass of flue gas, cigarette
The white device for deep cleaning inner refrigerant pipeline of qi exhaustion may be disposed so that coil pipe or finned tube.
System refrigerant palpus and flue gas heat exchange, are used for flue gas condensing reheating；It is conventional in use, saturated flue gas temperature after desulfurization
At 50 DEG C or so, after the reheating that heats up flue gas exhaust gas temperature it is general >=60 DEG C, refrigerant operating temperature compare conventional refrigerant unit compared with
Height, therefore the high temperature refrigerants such as 134a, R142B, R123 need to be selected, safeguards system stable operation.
This with it is novel compared with prior art, beneficial has the technical effect that
(I) system that the flue gas of the utility model takes off that pollutant is removed in depth in bletilla energy conservation is based on flue gas even distribution, flue gas drops
Temperature, flue gas heating and flue gas waste heat recovery, greatly reduce flue gas white cigarette effect and take full advantage of fume afterheat, from root
On control flue gas water vapour content and reduce flue gas saturation degree, flue gas reaches flue gas pollutant discharge and wants after final process
It asks, especially water content is obtained being substantially reduced and effectively be controlled.Meanwhile within the system, heating flue gas is not required to provide additional energy
Source can also make full use of fume afterheat, and can provide the effective energy according to the actual situation for plant area, have certain energy conservation
Effect.
(II) within the system, due in flue gas water vapour content from 90~110g/kg be reduced to 66~78g/kg, cigarette
(can adjust flue gas cool-down temperature according to the actual situation) is precipitated in 30% or more Water vapor condensation in gas.For 50000Nm3/ h cigarette
Gas, flue-gas temperature are reduced to 45 DEG C from 50 DEG C, and 1.6t/h flue gas condensing water can be recycled in system, this partial condensation water may also pass through reality
Border situation makes full use of (such as desulfurizing tower moisturizing)
(III) within the system, flue gas extension and lifting force significantly improve after flue gas heating, and flue gas saturation degree obviously drops
It is low, it effectively eliminates vision " white cigarette ", meanwhile, flue gas heating is conducive to chimney anticorrosion, and heating flue gas is not required to provide additional energy source, also
Fume afterheat can be made full use of, and can be provided in effectively for plant area according to the actual situation and sample the energy, there is certain energy conservation
Effect.
(IV) indirect heat exchange is carried out by evaporating heat exchanger, condensing heat exchanger, is ensureing heat transfer property using indirect heat exchange
While, be conducive to that evaporator, condenser is avoided to be corroded by sweep of gases, pipe wear causes refrigerant to leak, influences work
Process and equipment operates normally, while the refrigerator assembly units such as evaporator and condenser are mounted on outside tower, easily facilitate monitoring, maintenance and
Maintenance.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model.
Fig. 2 is the utility model flue gas condensing heating energy conserving system schematic diagram.
Each label indicates in figure are as follows: 1- desulfurizing tower, 2- flue gas take off white device for deep cleaning, 3- air-introduced machine, the rectification of 4- flue gas
Device, 5- refrigerant evaporator, 6- compressor, 7- refrigerant condenser, 8- throttle valve, 9- heat exchanger；
11- desulfurizing tower exhanst gas outlet, 12- slurry nozzle, 13- slurry circulating pump, 14- desulfurizing tower smoke inlet；
21- flue gas takes off white device for deep cleaning smoke inlet, 22- chimney；
51- evaporating heat exchanger, 71- condensing heat exchanger；
100- refrigerant tubing, the first refrigerant tubing of 101-, 102- second refrigerant pipeline, 103- flue,
104- slurries pipeline；
200- flue gas analysis device, 300- collecting pit.
The utility model is illustrated below in conjunction with specification drawings and specific embodiments.
Specific embodiment
Specific embodiment of the utility model is given below, it should be noted that the utility model is not limited to following tool
Body embodiment, all equivalent transformations made on the basis of the technical solutions of the present application each fall within the protection scope of the utility model.
Embodiment 1:
In compliance with the above technical solution, as shown in Figure 1, the present embodiment provide that a kind of flue gas takes off white deep purifying discharge be
System, including desulfurizing tower 1 further include that flue gas takes off white device for deep cleaning 2, flue gas take off in white device for deep cleaning 2 from bottom to up according to
It is secondary to be equipped with flue gas rectifier 4, evaporating heat exchanger 51, condensing heat exchanger 71 and chimney 22；Evaporating heat exchanger 51 is connected with set on cigarette
Refrigerant evaporator 5 outside the white device for deep cleaning 2 of qi exhaustion, the condensing heat exchanger 71, which is connected with, takes off white depth set on flue gas
Refrigerant condenser 7 outside purification device 2；Sealing is equipped with refrigerant pipe between refrigerant evaporator 5 and refrigerant condenser 7
The pipeline loop in road 100, refrigerant tubing 100 are used to make for being connected to refrigerant evaporator 5 and refrigerant condenser 7
Refrigerant can circulate in refrigerant tubing 100；The first refrigerant between refrigerant evaporator 5 to refrigerant condenser 7
Pipeline 101 is equipped with compressor 6, on refrigerant condenser 7 to the second refrigerant pipeline 102 between refrigerant evaporator 5
It is successively arranged heat exchanger 9 and throttle valve 8；Flue gas below flue gas rectifier 4 takes off de- equipped with flue gas on white device for deep cleaning 2
White device for deep cleaning smoke inlet 21, flue gas take off white device for deep cleaning smoke inlet 21 and are located at the de- of 1 top of desulfurizing tower
It is connected between sulphur tower flue gas outlet 11 by flue 103, flue 103 is equipped with air-introduced machine 3.
Through the above technical solutions, the flue gas rectification section that flue gas rectifier 4 is formed can pass through tower tray or filler, demister etc.
Even distribution device makes smoke distribution uniform；Indirect heat exchange is carried out by evaporating heat exchanger 51, condensing heat exchanger 71, using changing indirectly
Heat is conducive to that evaporator 5, condenser 7 is avoided to be corroded by sweep of gases, pipe wear causes while ensureing heat transfer property
Refrigerant leakage influences process unit normal operation, while the refrigerator assembly units such as evaporator 5 and condenser 7 are mounted on outside tower,
Easily facilitate monitoring, maintenance and maintenance.Heat exchanger form and medium meet heat transmission function, unrestricted.
The flue gas condensing water removal section that evaporating heat exchanger 51 and refrigerant evaporator 5 are formed mainly pass through evaporating heat exchanger 51,
Refrigerant evaporator 5 absorbs flue gas heat, reduces exhaust gas temperature, Water vapor condensation and then reduction flue gas water content in flue gas, together
When, the heavy metals such as sour gas, Hg, As such as dust, SO2 are precipitated as vapor phase transformation condenses collaboration coalescence in flue gas, flue gas
Deep purifying.Specifically, refrigerant passes through 51 indirect heat exchange of evaporating heat exchanger, absorption fume afterheat steaming in refrigerant evaporator 5
Hair, is gas phase from liquid phase, which is discharged high steam after passing through compressor 6, enters refrigerant condenser through reversal valve
7；The flue gas warming-up section that condensing heat exchanger 71 and refrigerant condenser 7 are formed mainly passes through condensing heat exchanger 71, heat exchanger 9 and system
Refrigerant phase transformation condensation heat in cryogen condenser 7 heats flue-gas temperature, reduces flue gas saturation degree, and it is " de- to further realize flue gas
It is white " effect, specifically, refrigerant vapour by with hot water heat exchanger 9 and condensing heat exchanger 71 and low-temperature flue gas indirect heat exchange
Afterwards, it is condensed into liquid in refrigerant condenser 7, enters refrigerant evaporator 5 through throttle valve 8, and in refrigerant evaporator 5
Middle heat absorption, flue gas is cooling, and the refrigerant vapour after evaporation is sucked after reversal valve by compressor, and then realizes flue gas depth
Purification and waste heat recycling.Heat exchanger 9 formed fume afterheat energy regenerating section using gas-liquid heat-exchange (tubular type, it is board-like or other
Form), medium temperature plant area life/industrial water is provided；Fume afterheat (the vapor phase transformation heat of condensation and obvious heat of smoke) is changed in hot water
Hot arc and flue gas warming-up section are utilized.
It is rectified first by flue gas using saturated flue gas after the utility model desulfurization (water vapour content is 90~110g/kg)
Enter flue gas condensing afterwards and remove water section, flue-gas temperature is reduced to≤45~48 DEG C or so, and water vapour content is reduced to≤66 in flue gas
~78g/kg, 30% or more Water vapor condensation is precipitated in flue gas, this is the first layer guarantee of this programme efficiently " taking off white ".Flue gas
It is heated up by exchanging heat with refrigerant condenser, flue gas exhaust gas temperature is promoted to 60 DEG C or more, and flue gas saturation degree significantly reduces, and passes through
High purification flue gas after heating is discharged from chimney, thoroughly realizes that flue gas white cigarette is effectively administered, this is that this programme is efficient " taking off white "
Second layer guarantee.Using the system, flue gas can be made to eliminate white cigarette, the water generated after vapor phase transformation cohesion can be de-
Circulation is participated in sulphur tower, reduces desulfurizing tower rate of water make-up.Simultaneously as the objects such as a large amount of SO2, dust particale object, heavy metal in flue gas
Matter is dissolved in or mixes with vapor, it is difficult to it separates, and by flue gas " dehydration ", the pollution that this part can be mixed with vapor
Object is collected, to further reduced the pollutant emission in flue gas.
Specifically, 1 inner upper of desulfurizing tower is equipped with slurry nozzle 12, slurry nozzle 12 is de- by the connection of slurries pipeline 104
The lower lumen of sulphur tower 1；Slurry circulating pump 13 is equipped on the slurries pipeline 104, to will be in 1 lower lumen of desulfurizing tower
Slurries pump to slurry nozzle 12 and sprayed；Slurry nozzle 12 sprays desulfurizing agent and carries out desulfurization to flue gas；In the slurries
1 tower wall of desulfurizing tower of 12 lower section of nozzle is equipped with desulfurizing tower smoke inlet 14.
In the present embodiment, flue gas analysis device 200, the flue gas analysis device in the present embodiment are connected on chimney 22
200 be CEMS flue gas analysis system, to analyze smoke components.
In other embodiments, desulfurizing tower 1, which with flue gas takes off white 2 bottom of device for deep cleaning and passes through pipeline, is connected to collection
Pond 300 is to collect liquid and be discharged.
The course of work and principle of the utility model are as follows:
Boiler smoke, through air-introduced machine 3, takes off white device for deep cleaning 2 into flue gas, flue gas is successively after the processing of desulfurizing tower 1
By the flue gas condensing for including the flue gas rectification section for being provided with flue gas rectifier 4, evaporating heat exchanger 51 and refrigerant evaporator 5
Remove water section, the flue gas warming-up section of condensing heat exchanger 71 and refrigerant condenser 7, by dehydration heat up deep purifying after flue gas from
Chimney 22 is discharged.Flue gas condensing heating energy conserving system process are as follows: refrigerant is between refrigerant evaporator 5 is by evaporating heat exchanger 51
Heat exchange is connect, fume afterheat evaporation is absorbed, is gas phase from liquid phase, which is discharged high steam after passing through compressor 6, through changing
Enter refrigerant condenser 7 to valve, refrigerant vapour passes through between hot water heat exchanger 9 and condensing heat exchanger 71 and low-temperature flue gas
After connecing heat exchange, it is condensed into liquid in refrigerant condenser 7, enters refrigerant evaporator 5 through throttle valve 8, and in refrigerant
It absorbs heat in evaporator 5, flue gas is cooling, and the refrigerant vapour after evaporation is sucked after reversal valve by compressor, and then realizes cigarette
Gas deep purifying and waste heat recycling.
Flue gas condensing heats up energy conserving system principle as shown in Fig. 2, the refrigerant of low-temp low-pressure is absorbed in refrigerant evaporator 5
Fume afterheat evaporation is gas phase (level pressure endothermic process, figure in 4~1 processes) from liquid phase, after which passes through compressor 6
High steam (compression process, figure in 1~2 process) is discharged, enters refrigerant condenser 7 through reversal valve, refrigerant vapour passes through
Highly pressurised liquid (level pressure exothermic process, figure in 2~3 processes), warp knuckle are condensed into hot water heat exchanger and low-temperature flue gas heat exchange
Flowing device becomes low temperature and low pressure liquid, steams into refrigerant evaporator 5 (throttling process, figure in 3~4 processes), and in refrigerant
It absorbs heat in hair device 5, flue gas is cooling, and the refrigerant vapour after evaporation is sucked by compressor after reversal valve, flue gas is achieved
Deep purifying and waste heat recycling.Within the system it should be noted that compressor exhaust temperature height easily causes built-in motor and compression
The phenomenon that machine overheats, must be arranged temperature sensor or relay, in machine winding to achieve the purpose that reliably protecting motor.
Comparative example 1:
This comparative example provides a kind of conventional wet desulfurization system, this comparative example the difference from embodiment 1 is that, this comparison
Flue gas directly discharges after the processing of conventional desulfurizing tower in the system of example, can not make flue gas cool-down, and vapor condenses phase transformation, also
Be " take off white " water-saving result without flue gas substantially, meanwhile, flue gas discharges after only passing through conventional desulfurization, a large amount of dust, sour gas,
The multiple pollutants such as heavy metal are discharged into atmosphere, cause environmental pollution, cannot achieve flue gas deep purifying clean emission.
Comparative example 2:
This comparative example provides a kind of conventional wet desulfurization system, this comparative example the difference from embodiment 1 is that, this comparison
The system of example is without containing the hot arc, i.e. flue gas boiler smoke direct emission after desulfurizing tower is handled again of heating up, through detecting: due to flue gas
Without the reheating that heats up, flue gas remains as saturation wet flue gas, and plume rise power and dilation angle are lower, in chimney breast, due to ring
Border temperature is lower, and flue gas intersects in temperature-fall period with saturated steam line, Water vapor condensation, and vision " white cigarette " phenomenon is obvious.
Comparative example 3:
This comparative example provides a kind of wet desulfurization system directly cooling using flue gas, the area of this comparative example and embodiment 1
It is not, the system of this comparative example is using directly cooling (directly spraying cooling medium, directly contact with the flue gas) mode of flue gas
For flue gas cool-down (slurries are cooling, cold water is cooling etc.).The carrying of flue gas droplet will cause using the technique and aerosol generates, together
When will cause pollution of the flue gas pollutant to cooling medium, influence system stable operation.
Comparative example 4:
This comparative example provides the desulphurization system that the indirect type of cooling is used after a kind of wet desulphurization, this comparative example and embodiment
1 difference is that the system of this comparative example is cooled down using usual heat exchanger.Using this kind of mode, mainly have with
Lower disadvantage: 1. heat exchanger cooled flue gas need additionally to use cold source, and since heat exchanger is gas-liquid heat exchange, overall heat-transfer coefficient is lower,
Need a large amount of cold sources；2. flue gas condensing water acidity is stronger since flue gas contains multiple pollutant, common metal is corroded tight
Weight；3. for flue gas heating, hot arc, embodiment 1 can directly utilize flue gas condensing section flue gas gasification latent heat to heat up for flue gas again,
And comparative example then needs other heat sources to heat up for flue gas, system complex needed for comparative example, energy consumption is higher.
Comparative example 5:
This comparative example provide it is a kind of refrigeration unit be directly installed on flue gas take off white device for deep cleaning carry out flue gas heat exchange
Flue gas take off white system, this comparative example the difference from embodiment 1 is that, between the system of this comparative example is used for using Intermediate Heat Exchanger
Heat exchange is connect, Intermediate Heat Exchanger and flue gas heat exchange side medium are water.Using this kind of mode, major defect is that refrigerant is usually to have
Malicious harmful substance is directly installed on flue gas and takes off white device for deep cleaning, due to flue gas abrasion and sour gas, liquid corrosion, meeting
Pipe wear is caused, repair and maintenance is unfavorable for, meanwhile, refrigerant leakage can influence whole system operation to systemic contamination is caused.
Claims (4)
1. a kind of flue gas takes off the system that pollutant is removed in depth in bletilla energy conservation, including desulfurizing tower (1), which is characterized in that further include
Flue gas takes off white device for deep cleaning (2), and flue gas takes off in white device for deep cleaning (2) is successively arranged flue gas rectifier from bottom to up
(4), evaporating heat exchanger (51), condensing heat exchanger (71) and chimney (22)；
The evaporating heat exchanger (51), which is connected with, takes off the refrigerant evaporator (5) of white device for deep cleaning (2) outside, institute set on flue gas
It states condensing heat exchanger (71) and is connected with and take off the refrigerant condenser (7) of white device for deep cleaning (2) outside set on flue gas；
Sealing is equipped with the pipeline loop of refrigerant tubing (100) between refrigerant evaporator (5) and refrigerant condenser (7),
Compressor (6) are equipped on the first refrigerant tubing (101) between refrigerant evaporator (5) to refrigerant condenser (7),
Heat exchanger (9) are successively arranged on refrigerant condenser (7) to the second refrigerant pipeline (102) between refrigerant evaporator (5)
With throttle valve (8)；
Flue gas below the flue gas rectifier (4) takes off and takes off white deep purifying dress equipped with flue gas on white device for deep cleaning (2)
It sets smoke inlet (21), flue gas takes off white device for deep cleaning smoke inlet (21) and the desulfurizing tower cigarette at the top of desulfurizing tower (1)
Gas is exported and is connected between (11) by flue (103), and flue (103) is equipped with air-introduced machine (3).
2. flue gas as described in claim 1 takes off the system that pollutant is removed in depth in bletilla energy conservation, which is characterized in that the desulfurization
Tower (1) inner upper is equipped with slurry nozzle (12), and slurry nozzle (12) passes through under slurries pipeline (104) connection desulfurizing tower (1)
Portion inner cavity；Slurry circulating pump (13) are equipped on the slurries pipeline (104), to by the slurry in desulfurizing tower (1) lower lumen
Liquid is pumped to slurry nozzle (12) and is sprayed；Desulfurization is equipped in desulfurizing tower (1) tower wall below the slurry nozzle (12)
Tower flue gas entrance (14).
3. flue gas as described in claim 1 takes off the system that pollutant is removed in depth in bletilla energy conservation, which is characterized in that the chimney
(22) flue gas analysis device (200) are connected on.
4. flue gas as described in claim 1 takes off the system that pollutant is removed in depth in bletilla energy conservation, which is characterized in that the desulfurization
Tower (1), which with flue gas takes off white device for deep cleaning (2) bottom and passes through pipeline, is connected to collecting pit (300).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821301180.7U CN208244446U (en) | 2018-08-10 | 2018-08-10 | The system that a kind of flue gas takes off bletilla energy conservation deep removal pollutant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821301180.7U CN208244446U (en) | 2018-08-10 | 2018-08-10 | The system that a kind of flue gas takes off bletilla energy conservation deep removal pollutant |
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| CN109827449A (en) * | 2019-01-24 | 2019-05-31 | 广州市中潭空气净化科技有限公司 | A kind of high-precision flue gas that heat conduction efficiency is high takes off white equipment |
| CN110152460A (en) * | 2019-06-14 | 2019-08-23 | 杭州蕴泽环境科技有限公司 | It is a kind of to utilize the water-saving eliminating white smoke device and method of chimney sleeve |
| CN110302636A (en) * | 2019-07-19 | 2019-10-08 | 陕西昕宇表面工程有限公司 | A kind of ammonia working medium circulation energy saving technology of wet-method desulfurized fume disappears white device and its whitening method that disappears |
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| CN110152460B (en) * | 2019-06-14 | 2024-04-09 | 杭州蕴泽环境科技有限公司 | Water-saving white smoke eliminating device and method by using chimney sleeve |
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| CN110360586A (en) * | 2019-08-12 | 2019-10-22 | 天津大学 | A kind of mechanical compression type heat pump system taking off white improvement for flue gas |
| CN110935279A (en) * | 2019-12-19 | 2020-03-31 | 济宁明升新材料有限公司 | Heat pump type white smoke eliminating device and method thereof |
| CN113577997A (en) * | 2021-08-10 | 2021-11-02 | 山东保蓝环保工程有限公司 | Environment-friendly and energy-saving water vapor whitening device for water cooling tower |
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