CN208458002U - A kind of industrial smoke Optimum utilization disappears white system - Google Patents
A kind of industrial smoke Optimum utilization disappears white system Download PDFInfo
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- CN208458002U CN208458002U CN201820909020.4U CN201820909020U CN208458002U CN 208458002 U CN208458002 U CN 208458002U CN 201820909020 U CN201820909020 U CN 201820909020U CN 208458002 U CN208458002 U CN 208458002U
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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
Disappear white system the utility model discloses a kind of industrial smoke Optimum utilization, exhanst gas outlet including level-one heat taking and exchanging device is connected with the gas inlet of electric precipitator, the exhanst gas outlet of electric precipitator is connected with the gas inlet of desulfurizing tower, the exhanst gas outlet of desulfurizing tower is connected with the gas inlet that second-order phase transistion condenses poly- heat exchanger, the exhanst gas outlet that second-order phase transistion condenses poly- heat exchanger is connected with the gas inlet of three-level heating heat exchanger, and the exhanst gas outlet of three-level heating heat exchanger is connected with the air inlet of booster fan；The heat exchange water out of level-one heat taking and exchanging device is connected with the heat exchange water inlet of three-level heating heat exchanger, and the heat exchange water out of three-level heating heat exchanger is connected with the heat exchange water inlet of level-one heat taking and exchanging device；Second-order phase transistion condenses the discharge outlet of poly- heat exchanger and is connected with the water supplement port of desulfurizing tower." big white cigarette " phenomenon when the utility model has the advantages that can effectively solve smoke evacuation.
Description
Technical field
The utility model relates to fume treatment technical fields, and in particular to a kind of industrial smoke Optimum utilization disappears white system.
Background technique
China's energy resource structure determines that coal-fired is one of the important source of atmosphere pollution, and most coal-burning power plants are configured with de-
Sulphur and cleaner strive realizing minimum discharge to meet increasingly strict environment protection emission requirement.Currently, minimum discharge technology road
Line has low temperature route (low-level (stack-gas) economizer is added before electric precipitation) and wet circuit line (wet electrical dust precipitator is added after desulfurization).So
And all inevitably there is the high-humidity flue gas after wet desulphurization and show from serious " big white cigarette " when chimney discharge in two kinds of routes
As causing haze, polluting environment.
Utility model content
The purpose of the utility model is to provide a kind of industrial smokes that can effectively solve " big white cigarette " phenomenon when discharging fume
Disappear white system.
To achieve the above object, the utility model adopts the technical scheme that a kind of industrial smoke optimization benefit
It is changed with the white system that disappears, including the poly- heat exchanger of level-one heat taking and exchanging device, electric precipitator, desulfurizing tower, second-order phase transistion condensation, three-level heating
Hot device and the booster fan flue gas to be discharged into chimney；The exhanst gas outlet and level-one of the air preheater take hot heat exchange
The gas inlet of device is connected, and the exhanst gas outlet of level-one heat taking and exchanging device is connected with the gas inlet of electric precipitator, electric precipitation
The exhanst gas outlet of device is connected with the gas inlet of desulfurizing tower, and the exhanst gas outlet and second-order phase transistion of desulfurizing tower condense poly- heat exchanger
Gas inlet is connected, and the exhanst gas outlet that second-order phase transistion condenses poly- heat exchanger is connected with the gas inlet of three-level heating heat exchanger
Logical, the exhanst gas outlet of three-level heating heat exchanger is connected with the air inlet of booster fan；The heat exchange of the level-one heat taking and exchanging device
Water out is connected with the heat exchange water inlet of three-level heating heat exchanger, and the heat exchange water out and level-one of three-level heating heat exchanger take heat
The heat exchange water inlet of heat exchanger is connected；The second-order phase transistion condenses the discharge outlet of poly- heat exchanger and is connected with the water supplement port of desulfurizing tower
It is logical.
Further, a kind of industrial smoke Optimum utilization above-mentioned disappears white system, in which: the second-order phase transistion condensation is poly- to change
The structure of hot device includes: heat exchange shell, is respectively arranged with smoke inlet and outlet flue in the front and rear sides of heat exchange shell, is exchanging heat
The inside of shell is disposed with level-one heat exchange unit, secondary heat exchange unit and three-level heat exchange unit along flow of flue gas direction,
The structure of every grade of heat exchange unit includes: the set of heat exchange tubes that several rows are supported on from up to down between the wall of the heat exchange shell left and right sides,
Every row's set of heat exchange tubes includes several flexible heat exchanger tubes, and the every flexible serpentine-like shape of heat exchanger tube is set around the left and right two of heat exchange shell
Snakelike heat exchange tube road all the way is formed between side wall, if making snakelike heat exchange tube of every row's set of heat exchange tubes with main line independent parallel
Road, the import on all snakelike heat exchange tube roads are connected with water inlet header simultaneously, and the outlet on all snakelike heat exchange tube roads simultaneously and goes out
Water header is connected；The heat exchanger tube density of the level-one heat exchange unit is higher than the heat exchanger tube density of secondary heat exchange unit, and second level is changed
The heat exchanger tube density of hot cell is higher than the heat exchanger tube density of three-level heat exchange unit, the caliber of heat exchanger tube in the level-one heat exchange unit
Less than the caliber of heat exchanger tube in secondary heat exchange unit, the caliber of heat exchanger tube is less than three-level heat exchange unit in the secondary heat exchange unit
The caliber of middle heat exchanger tube.
Further, a kind of industrial smoke Optimum utilization above-mentioned disappears white system, in which: heat exchange shell lower section and lean on
One end of nearly outlet flue is provided with the dirty slot of receipts, is receiving the bottom plate that catchments for being provided with and being located at below heat exchange shell on front side of dirty slot, is catchmenting
Bottom plate is in be obliquely installed gradually downward to the dirty slot of receipts along flue gas direction, and the front end for the bottom plate that catchments is located at the smoke inlet of heat exchange shell
Lower section, rear end extand rearward to the dirty slot of receipts, the sedimentation basin communicated with the dirty slot of receipts are provided with immediately below the centre for receiving dirty slot, heavy
The top in shallow lake pond is provided with discharge outlet, the bottom of sedimentation basin is provided with the first sewage draining exit of the first valve of band, in sedimentation basin
Underface is connected with sludge collecting box, and the bottom of sludge collecting box is provided with the second sewage draining exit of the second valve of band.
Further, a kind of industrial smoke Optimum utilization above-mentioned disappears white system, in which: further including can be to catchmenting on bottom plate
The Tui Wu mechanism that is cleared up of contamination, Tui Wu mechanism include: be provided with above the bottom plate that catchments it is parallel with the bottom plate that catchments
And soiled threads bar is pushed away in front and back trend, it pushes away soiled threads bar and rotation is driven by motor, be threaded on pushing away soiled threads bar and push away dirty folded plate,
Push away the upper surface for correcting under dirty folded plate and being against the bottom plate that catchments downwards.
Further, a kind of industrial smoke Optimum utilization above-mentioned disappears white system, in which: all snakes in three-level heat exchange unit
The import of shape heat exchanging pipe is connected with water inlet header simultaneously, the outlet on all snakelike heat exchange tube roads in three-level heat exchange unit, with
And the import on all snakelike heat exchange tube roads is connected with the first intermediate header simultaneously in secondary heat exchange unit, in secondary heat exchange unit
In the outlet on all snakelike heat exchange tube roads and level-one heat exchange unit all snakelike heat exchange tube roads import simultaneously with second among
Header is connected, and the outlet on all snakelike heat exchange tube roads is connected with water outlet header simultaneously in level-one heat exchange unit.
Further, a kind of industrial smoke Optimum utilization above-mentioned disappears white system, in which: is arranged in the bottom of water inlet header
There is discharge tube, the bottom of water outlet header is provided with outlet pipe, the top of water outlet header is provided with exhaust pipe.
Further, a kind of industrial smoke Optimum utilization above-mentioned disappears white system, in which: in the left and right sides of heat exchange shell
It is separately installed on the outer wall of wall to seal the sealing protective for covering snakelike heat exchange tube road respective side turn of bilge, in each sealing
Inspection door is respectively arranged on protective cover.
Further, a kind of industrial smoke Optimum utilization above-mentioned disappears white system, in which: in heat exchange shell from left to right
It is spaced and parallel to be provided with several middle supporting plates to aiding support heat exchanger tube, middle supporting plate will exchange heat enclosure interior be separated into it is several solely
Found parallel heat exchanger channels.
Further, a kind of industrial smoke Optimum utilization above-mentioned disappears white system, in which: changing in level-one heat taking and exchanging device
Heat pipe is H-type extended surface tube.
Further, a kind of industrial smoke Optimum utilization above-mentioned disappears white system, in which: changing in three-level heating heat exchanger
Heat pipe is spiral fins pipe.
Through the implementation of the above technical solution, the beneficial effects of the utility model are: (1) heat exchange efficiency is high, integrated operation
It is at low cost；(2) level-one heat taking and exchanging device realizes that fume afterheat utilizes low low temperature electric dust-removal emission reduction；Second-order phase transistion condenses poly- heat exchanger
It, also can be with except a variety of fine particles dirt in high-humidity flue gas in recycling the high-humidity flue gas after wet desulphurization while moisture
Object is contaminated, three-level heating heat exchanger reduces equipment using the heat source water heating flue gas of level-one heat taking and exchanging device and corrodes, thoroughly disappears white, have
" big white cigarette " phenomenon when effect solves smoke evacuation can not only eradicate haze pollution, moreover it is possible to be realized with a low cost environment protection standard, ultralow close
Moisture and waste heat in zero-emission, especially recovered flue gas, tens tons of water saving potential of year, and the water of recycling is used to take off
Sulphur, so that desulfurizing tower desulfurization not only not water consumption, moreover it is possible to recycle the most of moisture in coal, be desulfurization or boiler by simple process
Supplement water is provided, is the unconventional water source of a new worth exploitation, especially for northwest water-deficient area；(3) factory is reduced
With power consumption, equipment operating cost is reduced, improves efficiency of fire coal, the contradiction for solving environment and development can be taken into account；(4) pass through reduction
Into the flue-gas temperature of electric precipitator, the efficiency of dust collection of electric precipitator can be effectively improved；(5) pass through flue gas temperature after raising desulfurizing tower
Degree, the low-temperature corrosion problem of flue and chimney after desulfurizing tower can be effectively improved, be more advantageous to industrial smoke disappear it is white；(6) can have
Effect utilizes Mist heat recovering, and the heat of recycling is in addition to the flue gas for heating desulfurizing tower outlet, it may also be used for heating backheat system
The hot net water of the low pressure condensation water, heating system united.
Detailed description of the invention
Fig. 1 is that a kind of industrial smoke Optimum utilization described in the utility model disappears the principle schematic diagram of white system.
Fig. 2 is the structural schematic diagram that second-order phase transistion described in the utility model condenses poly- heat exchanger.
Fig. 3 is the structural schematic diagram of the overlook direction of Fig. 2.
Fig. 4 is the structural schematic diagram of A-A section shown in Fig. 2.
Fig. 5 is the enlarged diagram at the position H shown in Fig. 4.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments.
The white system as shown in Figure 1, a kind of industrial smoke Optimum utilization disappears, including level-one heat taking and exchanging device 32, electricity
Deduster 33, desulfurizing tower 34, second-order phase transistion condense poly- heat exchanger 35, three-level heating heat exchanger 36 and flue gas to be discharged into
The booster fan 38 of chimney 37；The exhanst gas outlet of the air preheater 31 is connected with the gas inlet of level-one heat taking and exchanging device 32
Logical, the exhanst gas outlet of level-one heat taking and exchanging device 32 is connected with the gas inlet of electric precipitator 33, and the flue gas of electric precipitator 33 goes out
Mouth is connected with the gas inlet of desulfurizing tower 34, and the exhanst gas outlet and second-order phase transistion of desulfurizing tower 34 condense the flue gas of poly- heat exchanger 35
Import is connected, and the exhanst gas outlet that second-order phase transistion condenses poly- heat exchanger 35 is connected with the gas inlet of three-level heating heat exchanger 36
Logical, the exhanst gas outlet of three-level heating heat exchanger 36 is connected with the air inlet of booster fan 38；The level-one heat taking and exchanging device 32
Heat exchange water out be connected with the heat exchange water inlet of three-level heating heat exchanger 36, the heat exchange water out of three-level heating heat exchanger 36
It is connected with the heat exchange water inlet of level-one heat taking and exchanging device 32；The second-order phase transistion condenses the discharge outlet and desulfurization of poly- heat exchanger 35
The water supplement port of tower 34 is connected；Heat exchanger tube in the level-one heat taking and exchanging device 31 be can be H-type extended surface tube, also can be with other
Structure heat exchange module, the heat exchanger tube in three-level heating heat exchanger 36 is spiral fins pipe, can also use other structures heat exchange module；
In the present embodiment, as shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5, the second-order phase transistion condenses the structure packet of poly- heat exchanger
It includes: including the shell 1 that exchanges heat, being respectively arranged with smoke inlet 111 and outlet flue 112 in the front and rear sides of heat exchange shell 1, exchanging heat
The inside of shell 1 is disposed with level-one heat exchange unit 2, secondary heat exchange unit 3 and three-level heat exchange list along flow of flue gas direction
Member 4, since level-one heat exchange unit 2, secondary heat exchange unit 3 and the structure of three-level heat exchange unit 4 are all the same, is only changed below with level-one
It is illustrated for the structure of hot cell 2, the structure of the level-one heat exchange unit includes: that several rows are supported on heat exchange from up to down
Set of heat exchange tubes between 1 left and right sides wall of shell, every row's set of heat exchange tubes include several flexible heat exchanger tubes 5, every flexible heat exchange
The serpentine-like shape of pipe 5 is set around between the left and right sides wall of heat exchange shell 1 and forms snakelike heat exchange tube road all the way, makes every row's heat exchanger tube
If group has a snakelike heat exchange tube road of main line independent parallel, the import on all snakelike heat exchange tube roads simultaneously be installed on heat exchanger shell
Water inlet header 7 outside body is connected, and the top of water inlet header 7 is provided with water inlet pipe 71, all snakelike heat exchange tube roads go out
Mouth is connected with the water outlet header 8 being installed on outside heat exchanger shell simultaneously；In the present embodiment, institute in three-level heat exchange unit 4
There is the import on snakelike heat exchange tube road to be connected simultaneously with water inlet header 7, all snakelike heat exchange tube roads goes out in three-level heat exchange unit 4
Mouthful and secondary heat exchange unit 3 in all snakelike heat exchange tube roads import simultaneously be installed on outside heat exchanger shell first
Intermediate header 9 is connected, and owns in the outlet on all snakelike heat exchange tube roads and level-one heat exchange unit 2 in secondary heat exchange unit 3
The import on snakelike heat exchange tube road is connected with the second intermediate header 10 being installed on outside heat exchanger shell simultaneously, and level-one heat exchange is single
The outlet on all snakelike heat exchange tube roads is connected with water outlet header 8 simultaneously in first 2, and this each heat exchange unit is with water inlet header and out
Connection type installation and maintenance between water header are more convenient；The heat exchanger tube density of the level-one heat exchange unit 2 is higher than secondary heat exchange
The heat exchanger tube density of unit 3, the heat exchanger tube density of secondary heat exchange unit 3 is higher than the heat exchanger tube density of three-level heat exchange unit 4, described
The caliber of heat exchanger tube 5 is less than the caliber of heat exchanger tube 5 in secondary heat exchange unit 3, the secondary heat exchange unit in level-one heat exchange unit 2
The caliber of heat exchanger tube 5 is less than the caliber of heat exchanger tube 5 in three-level heat exchange unit 4 in 3；
In the present embodiment, it is provided with the dirty slot 11 of receipts in the lower section of heat exchange shell 1 and close to one end of outlet flue, it is dirty receiving
Be provided with the bottom plate 12 that catchments for being located at heat exchange shell 1 lower section on front side of slot 11, the front end for the bottom plate 12 that catchments be located at heat exchange shell 1 into
The lower section of mouth 111, rear end extand rearward to the dirty slot 11 of receipts, are provided with immediately below the centre for receiving dirty slot 11 and receive dirt slot 11 and communicate
Sedimentation basin 13, the top of sedimentation basin 13 is provided with discharge outlet 14, the bottom of sedimentation basin 13 is provided with the first valve of band 15
The first sewage draining exit, be connected with sludge collecting box 16 in the underface of sedimentation basin 13, the bottom of sludge collecting box 16 be provided with the second valve of band
Second sewage draining exit of door 17, the loss of the water purification of collection can be effectively reduced by the opening and closing of twice valve；In the present embodiment,
The bottom plate that catchments is in be obliquely installed gradually downward to the dirty slot of receipts along flue gas direction, can be preferably collected in this way through in heat exchange shell 1
The drop formed after each heat exchange unit phase transformation condensation is poly-；
In the present embodiment, further including can be to the Tui Wu mechanism that the contamination catchmented on bottom plate 12 is cleared up, Tui Wu mechanism
Include: to be provided with parallel with the bottom plate 12 that catchments in the top for the bottom plate 12 that catchments and push away soiled threads bar 18 in front and back trend, pushes away dirt
Screw rod 18 is driven by motor 19 and is rotated, and is threaded on pushing away soiled threads bar 18 and is pushed away dirty folded plate 20, is pushed away the lower of dirty folded plate 20 and is rectified
The good upper surface for being against the bottom plate 12 that catchments downwards pushes away soiled threads bar 18 by the drive of motor 19 and rotates, and synchronous drive pushes away dirty folded plate 20
Along the back-and-forth motion of soiled threads bar 18 is pushed away, to the contamination for 12 upper surface of bottom plate of catchmenting is pushed into receive in dirty slot 11, to complete to catchment
The cleaning of contamination on bottom plate 12；
In the present embodiment, the bottom of water inlet header 7 is provided with discharge tube 21, it in this way can be preferably to water inlet header
Water in 7 is emptied；In the present embodiment, the bottom of water outlet header 8 is provided with outlet pipe 22, in the upper of water outlet header 8
Portion is provided with exhaust pipe 23, is vented in time by exhaust pipe to water outlet header, it is ensured that the stability in use of heat exchanger；At this
In embodiment, it is separately installed on the outer wall of the left and right sides wall of heat exchange shell 1 and covers snakelike heat exchange tube road pair to seal
The sealing protective 24 in lateral bending portion 6 is answered, can preferably protect flexible heat exchanger tube in this way, flexible heat exchanger tube is avoided to install in equipment
It is damaged in use process, and then further extends the service life of equipment；In the present embodiment, in each sealing protective 24
On be respectively arranged with inspection door 25, by inspection door can to the behaviour in service in snakelike heat exchange tube bend portion carry out in time check dimension
It repairs, preferably protects equipment；In the present embodiment, heat exchange shell 1 in it is spaced and parallel from left to right be provided with it is several to
The middle supporting plate 26 of aiding support flexibility heat exchanger tube 5, middle supporting plate 26 will be separated into the heat exchange of several independent parallels inside the shell 1 that exchanges heat
Channel, when unordered flue gas will become orderly flue gas discharge after each heat exchanger channels in heat exchange shell 1；
The working principle of the utility model is as follows:
The flue gas that the temperature being discharged from the exhanst gas outlet of boiler air preheater 31 is about 130~160 DEG C is introduced into level-one
It is cooled down in heat taking and exchanging device 32 to 90 DEG C or so, enters back into and carry out electric precipitation in electric precipitator 33, removed in flue gas
The acid that includes, except harmful components such as dioxin, heavy metals, then enter back into and carry out desulfurization in desulfurizing tower 34, after flue gas desulfurization again
Dehumidification by condensation in poly- heat exchanger 35 is condensed into second-order phase transistion, second-order phase transistion, which condenses poly- heat exchanger 35, can not only recycle desulfurizing tower 34
Moisture in the wet flue gas of discharge, but also remaining particle dust, sulfur dioxide, acid, heavy metal in wet flue gas can be removed
Etc. water soluble contaminants, the flue gas condensed in poly- heat exchanger 35 after dehumidification by condensation through second-order phase transistion enter back into three-level heating heat exchanger
It is heated in 36, then chimney 37 is discharged through booster fan 38, will not occur " big white cigarette " phenomenon again when discharging fume at this time from chimney 37；?
In system work process, the hot water that 32 Mist heat recovering of level-one heat taking and exchanging device generates can enter in three-level heating heat exchanger 36
As heat medium heat flue gas, into the hot water heating flue gas of three-level heating heat exchanger 36 after turn cold, be recycled into after turning cold
Enter Mist heat recovering in level-one heat taking and exchanging device 32；
Meanwhile second-order phase transistion condenses the condensed water that poly- heat exchanger 35 recycles and can constantly enter in desulfurizing tower 34 as desulfurization benefit
Water greatly reduces the desulfurization water of desulfurizing tower 34；
Wherein, second-order phase transistion condense poly- heat exchanger 35 the course of work it is as follows:
Cooling water, which is first passed through the cooling water into water header 7, in header 7 of intaking from water inlet pipe 71, can first pass through three-level heat exchange
Flexible heat exchanger tube 5 in unit 4 enters the first intermediate header 9, and the cooling water in the first intermediate header 9 passes through secondary heat exchange list again
Each snakelike heat exchange tube road in member 3 enters the second intermediate header 10, and the cooling water in the second intermediate header 10 is changed by level-one again
Each snakelike heat exchange tube road in hot cell 2 enters water outlet header 8, and the cooling water being discharged in header 8 is discharged from outlet pipe 17 again；
Then the saturation wet flue gas for coming out desulfurizing tower in wet desulfurization system enters heat exchange shell 1, saturation wet flue gas into
Entering to exchange heat can be successively by level-one heat exchange unit 2, secondary heat exchange unit 3 and the three-level heat exchange unit in heat exchange shell 1 after shell 1
4, it is then exhausted from heat exchange shell 1, in saturation wet flue gas by level-one heat exchange unit 2, secondary heat exchange unit 3 and three-level heat exchange unit 4
During, saturation wet flue gas constantly can carry out heat exchange with the flexible heat exchanger tube 5 in each heat exchange unit and cool down, and pass through level-one
Heat exchanger tube density and the change of gradient of heat exchange tube diameter in heat exchange unit 2, secondary heat exchange unit 3 and three-level heat exchange unit 4, thus
Realize that the gradient cooling to saturation wet flue gas, heat exchange efficiency are high, good cooling effect and good to the trapping effect of fine particle；?
During being saturated the reduction of wet flue gas temperature, the supersaturation water steam being saturated in wet flue gas can be undergone phase transition, and be condensed by steam state
Liquid, the mist droplet of generation can adhere to condensation in the surface impacts of the flexible heat exchanger tube 5 of each heat exchange unit and form liquid film, and satisfy
It can be by the liquid on flexible 5 surface of heat exchanger tube when passing through flexible heat exchanger tube 5 by turbulent flow or warm-up movement with the fine particle in wet flue gas
Film trapping, while being increasing with condensate liquid, liquid film can then fall off after reaching certain thickness along gravity direction, liquid film falls off
Position will form new moisture film again, and moisture film is acidic liquid, play pickling function, and because heat exchange tube material is modified fluoroplastics,
Itself there is good anti-rotten and anti-stain characteristic energy；Liquid film can be dripped from flexible heat exchanger tube 5 forms " rainfall " effect, in liquid
During film " rainfall ", the liquid film flowed down can further trap fine particle and fine drop in saturation wet flue gas, trapping
The condensate liquid of fine particle, which can be fallen to, to catchment on bottom plate 12, and is snapped down to the dirty slot 11 of receipts along the bottom plate 12 that catchments, then received dirty slot
It is precipitated in 11 entrance sedimentation basins 13, the upper layer water purification in sedimentation basin is discharged from discharge outlet 14 and recycles, the dirt of lower layer
Enter sludge collecting box 16 from the first valve 15, after full certain dirt is stored up in sludge collecting box 16, then opens the second valve 17 and dirt is discharged；
And cooling water with constantly with saturation wet flue gas it is continuous heat exchange and heat up, eventually arrive at be discharged header 8 cooling water be hot water.
The utility model has the advantages that: (1) heat exchange efficiency high, and integrated operation is at low cost；(2) level-one heat taking and exchanging device is realized
Fume afterheat utilizes low low temperature electric dust-removal emission reduction；Second-order phase transistion condenses high-humidity flue gas of the poly- heat exchanger after recycling wet desulphurization
, also can be with except a variety of fine particle pollutants in high-humidity flue gas while middle moisture, three-level heating heat exchanger utilizes level-one
The heat source water heating flue gas of heat taking and exchanging device reduces equipment corrosion, thoroughly disappears white, " the big white cigarette " efficiently solved when smoke evacuation is existing
As haze pollution can not only be eradicated, moreover it is possible to be realized with a low cost environment protection standard, in ultralow near-zero release, especially recovered flue gas
Moisture and waste heat, tens tons of water saving potential of year, and the water of recycling is used for desulfurization, so that desulfurizing tower desulfurization does not consume not only
Water, moreover it is possible to recycle the most of moisture in coal, provide supplement water by simple process for desulfurization or boiler, being one new is worth
The unconventional water source of exploitation, especially for northwest water-deficient area；(3) auxiliary power consumption is reduced, equipment operating cost is reduced,
Efficiency of fire coal is improved, the contradiction for solving environment and development can be taken into account；It (4), can by being lowered into the flue-gas temperature of electric precipitator
Effectively improve the efficiency of dust collection of electric precipitator；(5) by flue-gas temperature after raising desulfurizing tower, the cigarette after desulfurizing tower can be effectively improved
The low-temperature corrosion problem in road and chimney, be more advantageous to industrial smoke disappear it is white；(6) Mist heat recovering can be efficiently used, recycling
Heat is in addition to the flue gas for heating desulfurizing tower outlet, it may also be used for heats low pressure condensation water, the heating system of heat regenerative system
The hot net water of system.
Claims (10)
- The white system 1. a kind of industrial smoke Optimum utilization disappears, it is characterised in that: including level-one heat taking and exchanging device, electric precipitator, take off Sulphur tower, second-order phase transistion condense poly- heat exchanger, three-level heating heat exchanger and the booster fan flue gas to be discharged into chimney；It is empty The exhanst gas outlet of air preheater is connected with the gas inlet of level-one heat taking and exchanging device, the exhanst gas outlet of level-one heat taking and exchanging device with The gas inlet of electric precipitator is connected, and the exhanst gas outlet of electric precipitator is connected with the gas inlet of desulfurizing tower, desulfurizing tower Exhanst gas outlet is connected with the gas inlet that second-order phase transistion condenses poly- heat exchanger, and second-order phase transistion condenses the exhanst gas outlet of poly- heat exchanger It is connected with the gas inlet of three-level heating heat exchanger, the air inlet phase of the exhanst gas outlet and booster fan of three-level heating heat exchanger Connection；The heat exchange water out of the level-one heat taking and exchanging device is connected with the heat exchange water inlet of three-level heating heat exchanger, and three-level adds The heat exchange water out of heat exchanger is connected with the heat exchange water inlet of level-one heat taking and exchanging device；The poly- heat exchange of second-order phase transistion condensation The discharge outlet of device is connected with the water supplement port of desulfurizing tower.
- The white system 2. a kind of industrial smoke Optimum utilization according to claim 1 disappears, it is characterised in that: the second-order phase transistion The structure for condensing poly- heat exchanger includes: heat exchange shell, is respectively arranged with smoke inlet and smoke in the front and rear sides of heat exchange shell Mouthful, level-one heat exchange unit, secondary heat exchange unit and three-level are disposed with along flow of flue gas direction in the inside of heat exchange shell Heat exchange unit, the structure of every grade of heat exchange unit include: that several rows are supported at left and right sides of heat exchange shell from up to down between wall Set of heat exchange tubes, every row's set of heat exchange tubes include several flexible heat exchanger tubes, and the every flexible serpentine-like shape of heat exchanger tube is set around heat exchange shell Snakelike heat exchange tube road all the way is formed between the left and right sides wall of body, if making snake of every row's set of heat exchange tubes with main line independent parallel Shape heat exchanging pipe, the import on all snakelike heat exchange tube roads are connected with water inlet header simultaneously, the outlet on all snakelike heat exchange tube roads It is connected simultaneously with water outlet header；The heat exchanger tube that the heat exchanger tube density of the level-one heat exchange unit is higher than secondary heat exchange unit is close Degree, the heat exchanger tube density of secondary heat exchange unit are higher than the heat exchanger tube density of three-level heat exchange unit, change in the level-one heat exchange unit The caliber of heat pipe is less than the caliber of heat exchanger tube in secondary heat exchange unit, and the caliber of heat exchanger tube is less than three in the secondary heat exchange unit The caliber of heat exchanger tube in grade heat exchange unit.
- The white system 3. a kind of industrial smoke Optimum utilization according to claim 2 disappears, it is characterised in that: in heat exchange shell Lower section and one end of close outlet flue are provided with the dirty slot of receipts, and the collection being provided with below heat exchange shell on front side of the dirty slot of receipts is water-bed Plate, the bottom plate that catchments are in be obliquely installed gradually downward to the dirty slot of receipts along flue gas direction, and the front end for the bottom plate that catchments is located at heat exchange shell Smoke inlet below, rear end extand rearward to the dirty slot of receipts, be provided with immediately below the centre for receiving dirty slot and sink with receive that dirty slot communicates Shallow lake pond is provided with discharge outlet on the top of sedimentation basin, and the bottom of sedimentation basin is provided with the first sewage draining exit of the first valve of band, It is connected with sludge collecting box immediately below sedimentation basin, the bottom of sludge collecting box is provided with the second sewage draining exit of the second valve of band.
- The white system 4. a kind of industrial smoke Optimum utilization according to claim 3 disappears, it is characterised in that: further including can be to collection The Tui Wu mechanism that contamination on water-bed plate is cleared up, Tui Wu mechanism include: to be provided with above the bottom plate that catchments and the collection bottom Plate is parallel and pushes away soiled threads bar in front and back trend, pushes away soiled threads bar and rotation is driven by motor, be threaded on pushing away soiled threads bar Dirty folded plate is pushed away, the upper surface for correcting under dirty folded plate and being against the bottom plate that catchments downwards is pushed away.
- The white system 5. a kind of industrial smoke Optimum utilization according to claim 2 disappears, it is characterised in that: three-level heat exchange unit In all snakelike heat exchange tube roads import simultaneously with water inlet header be connected, all snakelike heat exchange tube roads in three-level heat exchange unit The import on all snakelike heat exchange tube roads is connected with the first intermediate header simultaneously in outlet and secondary heat exchange unit, and second level is changed In hot cell in the outlet on all snakelike heat exchange tube roads and level-one heat exchange unit the import on all snakelike heat exchange tube roads simultaneously with Second intermediate header is connected, and the outlet on all snakelike heat exchange tube roads is connected with water outlet header simultaneously in level-one heat exchange unit.
- The white system 6. a kind of industrial smoke Optimum utilization according to claim 2 disappears, it is characterised in that: in water inlet header Bottom is provided with discharge tube, and the bottom of water outlet header is provided with outlet pipe, and the top of water outlet header is provided with exhaust pipe.
- The white system 7. a kind of industrial smoke Optimum utilization according to claim 2 disappears, it is characterised in that: in heat exchange shell It is separately installed on the outer wall of left and right sides wall to seal the sealing protective for covering snakelike heat exchange tube road respective side turn of bilge, Inspection door is respectively arranged on each sealing protective.
- The white system 8. a kind of industrial smoke Optimum utilization according to claim 2 disappears, it is characterised in that: in heat exchange shell Spaced and parallel from left to right to be provided with several middle supporting plates to aiding support heat exchanger tube, middle supporting plate separates heat exchange enclosure interior At the heat exchanger channels of several independent parallels.
- The white system 9. a kind of industrial smoke Optimum utilization according to claim 1 disappears, it is characterised in that: level-one takes hot heat exchange Heat exchanger tube in device is H-type extended surface tube.
- The white system 10. a kind of industrial smoke Optimum utilization according to claim 1 disappears, it is characterised in that: three-level heating is changed Heat exchanger tube in hot device is spiral fins pipe.
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| CN201820909020.4U CN208458002U (en) | 2018-06-12 | 2018-06-12 | A kind of industrial smoke Optimum utilization disappears white system |
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| CN201820909020.4U CN208458002U (en) | 2018-06-12 | 2018-06-12 | A kind of industrial smoke Optimum utilization disappears white system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108800180A (en) * | 2018-06-12 | 2018-11-13 | 江苏龙净节能科技有限公司 | A kind of industrial smoke Optimum utilization disappears white system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108800180A (en) * | 2018-06-12 | 2018-11-13 | 江苏龙净节能科技有限公司 | A kind of industrial smoke Optimum utilization disappears white system |
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