CN108800180A - 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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- CN108800180A CN108800180A CN201810599531.5A CN201810599531A CN108800180A CN 108800180 A CN108800180 A CN 108800180A CN 201810599531 A CN201810599531 A CN 201810599531A CN 108800180 A CN108800180 A CN 108800180A
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- heat exchange
- heat exchanger
- level
- heat
- outlet
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- 239000000779 smoke Substances 0.000 title claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 79
- 238000010438 heat treatment Methods 0.000 claims abstract description 36
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 25
- 239000012716 precipitator Substances 0.000 claims abstract description 16
- 239000013589 supplement Substances 0.000 claims abstract description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 49
- 239000003546 flue gas Substances 0.000 claims description 49
- 239000007789 gas Substances 0.000 claims description 31
- 238000006477 desulfuration reaction Methods 0.000 claims description 14
- 230000023556 desulfurization Effects 0.000 claims description 14
- 230000008676 import Effects 0.000 claims description 14
- 238000004062 sedimentation Methods 0.000 claims description 11
- 238000009833 condensation Methods 0.000 claims description 8
- 230000005494 condensation Effects 0.000 claims description 8
- 239000010802 sludge Substances 0.000 claims description 8
- 230000007246 mechanism Effects 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 239000010865 sewage Substances 0.000 claims description 6
- 238000011109 contamination Methods 0.000 claims description 5
- 238000007689 inspection Methods 0.000 claims description 5
- 241000270295 Serpentes Species 0.000 claims description 3
- 239000005864 Sulphur Substances 0.000 claims description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims 1
- 235000019504 cigarettes Nutrition 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 11
- 239000000498 cooling water Substances 0.000 description 7
- 238000004064 recycling Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000010419 fine particle Substances 0.000 description 5
- 239000003595 mist Substances 0.000 description 5
- 239000003245 coal Substances 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229920006395 saturated elastomer Polymers 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 239000003517 fume Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000007791 dehumidification Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/08—Arrangements of devices for treating smoke or fumes of heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
- F28B1/02—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser using water or other liquid as the cooling medium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B9/00—Auxiliary systems, arrangements, or devices
- F28B9/08—Auxiliary systems, arrangements, or devices for collecting and removing condensate
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
- F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2215/00—Preventing emissions
- F23J2215/20—Sulfur; Compounds thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2219/00—Treatment devices
- F23J2219/70—Condensing contaminants with coolers
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/56—Heat recovery units
-
- 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 invention 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 gas inlet that the exhanst gas outlet of desulfurizing tower condenses poly- heat exchanger with second-order phase transistion is connected, 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 present invention has the advantages that effectively solve smoke evacuation.
Description
Technical field
The present invention relates to fume treatment technical fields, and in particular to a kind of industrial smoke Optimum utilization disappears white system.
Background technology
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）With wet circuit line（Wet electrical dust precipitator is added after desulfurization）.So
And all inevitably to there is when the high-humidity flue gas after wet desulphurization is discharged from chimney serious " big white cigarette " existing for two kinds of routes
As causing haze, polluting environment.
Invention content
The object of the present invention is to provide it is a kind of can efficiently solve smoke evacuation when " big white cigarette " phenomenon industrial smoke disappear it is white
System.
To achieve the above object, present invention employs following technical solutions：A kind of industrial smoke Optimum utilization disappears
White system, including level-one heat taking and exchanging device, electric precipitator, desulfurizing tower, second-order phase transistion condense poly- heat exchanger, three-level heating heat exchange
Device and flue gas to be discharged into the booster fan of chimney；The exhanst gas outlet of the air preheater and level-one heat taking and exchanging device
Gas inlet be connected, the exhanst gas outlet of level-one heat taking and exchanging device is connected with the gas inlet of electric precipitator, electric precipitator
Exhanst gas outlet be connected with the gas inlet of desulfurizing tower, the exhanst gas outlet of desulfurizing tower condenses the cigarette of poly- heat exchanger with second-order phase transistion
Gas import 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,
The exhanst gas outlet of three-level heating heat exchanger is connected with the air inlet of booster fan；The heat-exchanging water of the level-one heat taking and exchanging device goes out
Mouth is connected with the heat exchange water inlet of three-level heating heat exchanger, and heat exchange water out and the level-one of three-level heating heat exchanger take hot heat exchange
The heat exchange water inlet of device 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.
Further, a kind of industrial smoke Optimum utilization above-mentioned disappears white system, wherein：The second-order phase transistion condensation is poly- to change
The structure of hot device includes：Exchange heat 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：Several rows are supported on the set of heat exchange tubes between wall at left and right sides of heat exchange shell from up to down,
Often 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, the outlet on all snakelike heat exchange tube roads simultaneously with go 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 two 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, wherein：In the lower section of heat exchange shell and lean on
One end of nearly outlet flue is provided with the dirty slot of receipts, is receiving the bottom plate that catchments being provided on front side of dirty slot below heat exchange shell, 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, wherein：Further including can be to catchmenting on bottom plate
The Tui Wu mechanisms that are cleared up of contamination, Tui Wu mechanisms include：It is provided with above the bottom plate that catchments parallel with the bottom plate that catchments
And soiled threads bar is pushed away in front and back trend, soiled threads bar is pushed away by motor-driven rotation, is threaded on pushing away soiled threads bar and is pushed away dirty folded plate,
Push away the upper surface for being corrected 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, wherein：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, in level-one heat exchange unit all snakelike heat exchange tube roads outlet simultaneously with water outlet header be connected.
Further, a kind of industrial smoke Optimum utilization above-mentioned disappears white system, wherein：It 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, wherein：In the left and right sides of heat exchange shell
It is separately installed with to seal the sealing protective for covering snakelike heat exchange tube road respective side turn of bilge on the outer wall of wall, in each sealing
Inspection door is respectively arranged on protective cover.
Further, a kind of industrial smoke Optimum utilization above-mentioned disappears white system, wherein：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
Vertical parallel heat exchanger channels.
Further, a kind of industrial smoke Optimum utilization above-mentioned disappears white system, wherein：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, wherein：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 invention are as follows：（1）Heat exchange efficiency is high, integrated operation cost
It is low；（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 and is returning
It, also can be with except a variety of fine particles pollution in high-humidity flue gas while receiving moisture in the high-humidity flue gas after wet desulphurization
Object, three-level heating heat exchanger reduce equipment using the heat source water heating flue gas of level-one heat taking and exchanging device and corrode, thoroughly disappear white, effectively
It solves " big white cigarette " phenomenon when smoke evacuation, haze pollution can not only be eradicated, moreover it is possible to be realized with a low cost environment protection standard, ultralow nearly zero
Discharge, moisture and waste heat especially in recovered flue gas, year tens tons of water saving potential, and the water of recycling is used for desulfurization,
So that desulfurizing tower desulfurization not only not water consumption, moreover it is possible to recycle most of moisture content in coal, be that desulfurization or boiler carry by simple process
It is the unconventional water source of a new worth exploitation, especially for northwest water-deficient area for supplementing water；（3）Reduce station-service
Power consumption reduces equipment operating cost, improves efficiency of fire coal, can take into account the contradiction for solving environment and development；（4）By reduce into
Enter 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 the flue and chimney that can be effectively improved after desulfurizing tower, 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 low pressure condensation water of system, the hot net water of heating system.
Description of the drawings
Fig. 1 is that a kind of industrial smoke Optimum utilization of the present invention disappears the principle schematic diagram of white system.
Fig. 2 is the structural schematic diagram that second-order phase transistion of the present invention 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 sections shown in Fig. 2.
Fig. 5 is the enlarged diagram at the positions H shown in Fig. 4.
Specific implementation mode
The invention will be further described 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 exhanst gas outlet and the 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 discharge outlet and the 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 structure that the second-order phase transistion condenses poly- heat exchanger includes：
Including the shell 1 that exchanges heat, it is respectively arranged with smoke inlet 111 and outlet flue 112 in the front and rear sides of heat exchange shell 1, in heat exchange shell
1 inside is disposed with level-one heat exchange unit 2, secondary heat exchange unit 3 and three-level heat exchange unit 4 along flow of flue gas direction,
Due to the structure all same of level-one heat exchange unit 2, secondary heat exchange unit 3 and three-level heat exchange unit 4, only exchanged heat below with level-one single
It is illustrated for the structure of member 2, the structure of the level-one heat exchange unit includes：Several rows are supported on heat exchange shell from up to down
Set of heat exchange tubes between 1 left and right sides wall, it includes several flexible heat exchanger tubes 5 often to arrange set of heat exchange tubes, and every flexible heat exchanger tube 5 is in
Snakelike shape 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, and every row's set of heat exchange tubes is made to have
If there is the snakelike heat exchange tube road of main line independent parallel, the import on all snakelike heat exchange tube roads simultaneously be installed on outside heat exchanger shell
The water inlet header 7 in portion is connected, and the top of water inlet header 7 is provided with water inlet pipe 71, the outlet on all snakelike heat exchange tube roads is same
When be connected with the water outlet header 8 being installed on outside heat exchanger shell；In the present embodiment, all snakes in three-level heat exchange unit 4
The import of shape heat exchanging pipe is connected with water inlet header 7 simultaneously, the outlet on all snakelike heat exchange tube roads in three-level heat exchange unit 4,
And in secondary heat exchange unit 3 all snakelike heat exchange tube roads import simultaneously be installed on outside heat exchanger shell first among
Header 9 is connected, all snakelike 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 of heat exchanging pipe is connected with the second intermediate header 10 being installed on outside heat exchanger shell simultaneously, level-one heat exchange unit 2
In the outlet on all snakelike heat exchange tube roads be connected simultaneously with water outlet header 8, this each heat exchange unit and water inlet header and water outlet
Connection type installation and maintenance between header are more convenient；The heat exchanger tube density of the level-one heat exchange unit 2 is higher than secondary heat exchange list
The heat exchanger tube density of member 3, the heat exchanger tube density of secondary heat exchange unit 3 are higher than the heat exchanger tube density of three-level heat exchange unit 4, and described one
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 3 in grade heat exchange unit 2
The caliber of middle heat exchanger tube 5 is less than the caliber of heat exchanger tube 5 in three-level heat exchange unit 4；
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, is receiving dirty slot 11
Front side is provided with the bottom plate 12 that catchments positioned at 1 lower section of heat exchange shell, and the front end for the bottom plate 12 that catchments is located at the smoke inlet of heat exchange shell 1
111 lower sections, rear end extand rearward to the dirty slot 11 of receipts, are provided with immediately below the centre for receiving dirty slot 11 and sink with receive that dirty slot 11 communicates
Shallow lake pond 13 is provided with discharge outlet 14 on the top of sedimentation basin 13, and the bottom of sedimentation basin 13 is provided with the of the first valve of band 15
One sewage draining exit is connected with sludge collecting box 16 in the underface of sedimentation basin 13, and the bottom of sludge collecting box 16 is provided with the second valve of band 17
The second sewage draining exit, the loss of the water purification of collection can be effectively reduced by the opening and closing of twice valve；In the present embodiment, it catchments
Bottom plate 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 respectively being changed in the shell 1 that exchanges heat
The drop formed after hot cell phase transformation condensation is poly-；
In the present embodiment, further include the Tui Wu mechanisms that the contamination on bottom plate 12 of catchmenting can be cleared up, Tui Wu mechanisms include：
It is provided with parallel with the bottom plate 12 that catchments in the top for the bottom plate 12 that catchments and pushes away soiled threads bar 18 in front and back trend, push away soiled threads bar 18
It is driven and is rotated by motor 19, be threaded on pushing away soiled threads bar 18 and push away dirty folded plate 20, pushed away and corrected under dirty folded plate 20 downwards
It is against the upper surface for the bottom plate 12 that catchments, pushing away soiled threads bar 18 by the drive of motor 19 rotates, and synchronous drive pushes away dirty folded plate 20 along pushing away dirt
Lead screw 18 is moved forward and backward, to which the contamination for 12 upper surface of bottom plate of catchmenting to be pushed into receive in dirty slot 11, to complete the bottom plate 12 that catchments
The cleaning of upper contamination；
In the present embodiment, the bottom of water inlet header 7 is provided with discharge tube 21, it in this way can be preferably in water inlet header 7
Water emptied；In the present embodiment, the bottom of water outlet header 8 is provided with outlet pipe 22, is set on the top of water outlet header 8
It is equipped with exhaust pipe 23, water outlet header is vented in time by exhaust pipe, it is ensured that the stability in use of heat exchanger；In this implementation
In example, it is separately installed with to seal and covers snakelike heat exchange tube road respective side on the outer wall of the left and right sides wall of heat exchange shell 1
The sealing protective 24 of turn of bilge 6 can preferably protect flexible heat exchanger tube, flexible heat exchanger tube is avoided to be installed and used in equipment in this way
It damages in the process, and then further extends the service life of equipment；In the present embodiment, divide on each sealing protective 24
It is not provided with inspection door 25, timely maintenance and inspection can be carried out to the behaviour in service in snakelike heat exchange tube bend portion by inspection door,
Preferably protect equipment；In the present embodiment, in heat exchange shell 1 it is spaced and parallel from left to right be provided with it is several assisting
The middle supporting plate 26 of bearing flexibility heat exchanger tube 5, middle supporting plate 26 lead to the heat exchange that several independent parallels are separated into inside the shell 1 that exchanges heat
Road, when unordered flue gas can become orderly flue gas discharge after each heat exchanger channels in heat exchange shell 1；
Working principle of the present invention 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 and takes heat
It is cooled down in heat exchanger 32 to 90 DEG C or so, enters back into and carry out electric precipitation in electric precipitator 33, include in removing flue gas
The harmful components such as acid, Chu bioxin, heavy metal, then enter back into and carry out desulfurization in desulfurizing tower 34, entered back into after flue gas desulfurization
Second-order phase transistion condenses dehumidification by condensation in poly- heat exchanger 35, and second-order phase transistion, which condenses poly- heat exchanger 35, can not only recycle the discharge of desulfurizing tower 34
Wet flue gas in moisture, but also the water such as remaining particle dust, sulfur dioxide, acid, heavy metal in wet flue gas can be removed
Soluble pollutants condense the flue gas in poly- heat exchanger 35 after dehumidification by condensation through second-order phase transistion and enter back into three-level heating heat exchanger 36
Heating, then chimney 37 is discharged through booster fan 38, will not occur " big white cigarette " phenomenon when discharging fume at this time from chimney 37 again；In system
In the course of work, the hot water that 32 Mist heat recovering of level-one heat taking and exchanging device generates can enter conduct in three-level heating heat exchanger 36
Heat medium heat flue gas, into three-level heating heat exchanger 36 hot water heating flue gas after turn cold, be re-circulated into one after turning cold
Mist heat recovering in grade heat taking and exchanging device 32；
Meanwhile second-order phase transistion condense poly- heat exchanger 35 recycling condensed water can constantly enter desulfurizing tower 34 in be used as desulfurization moisturizing,
Greatly reduce 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：
First cooling water is passed through from water inlet pipe 71 into water header 7, the cooling water in header 7 of intaking can first pass through three-level heat exchange unit
Flexible heat exchanger tube 5 in 4 enters the first intermediate header 9, and the cooling water in the first intermediate header 9 passes through secondary heat exchange unit 3 again
In each snakelike heat exchange tube road enter the second intermediate header 10, it is single that the cooling water in the second intermediate header 10 passes through level-one heat exchange again
Each snakelike heat exchange tube road in member 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 that desulfurizing tower comes out in wet desulfurization system is made to enter heat exchange shell 1, saturation wet flue gas, which enters, to be changed
Level-one heat exchange unit 2, secondary heat exchange unit 3 and the three-level heat exchange unit 4 in heat exchange shell 1 can be passed through after hot shell 1 successively, then
Discharge heat exchange shell 1, in saturation wet flue gas by the mistake of level-one heat exchange unit 2, secondary heat exchange unit 3 and three-level heat exchange unit 4
Cheng Zhong, 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, be exchanged heat by level-one
Unit 2, secondary heat exchange unit 3 and heat exchanger tube density and the graded of heat exchange tube diameter in three-level heat exchange unit 4, to realize
To being saturated the gradient cooling of wet flue gas, heat exchange efficiency is high, good cooling effect and good to the trapping effect of fine particle；It is being saturated
During wet flue gas temperature reduces, the supersaturation water steam being saturated in wet flue gas can be undergone phase transition, and liquid is condensed by steam state,
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 be saturated wet
Fine particle in flue gas is by turbulent flow or warm-up movement by that can be caught by the liquid film on 5 surface of flexible heat exchanger tube when flexible heat exchanger tube 5
Collection, while being on the increase with condensate liquid, liquid film can then fall off after reaching certain thickness along gravity direction, and liquid film falls off position
New moisture film can be formed again, moisture film is acidic liquid, plays pickling function, and because heat exchange tube material is modified fluoroplastics,
Body has good anti-rotten and anti-stain characteristic energy；Liquid film can be dripped from flexible heat exchanger tube 5 forms " rainfall " effect, in liquid film
During " rainfall ", the liquid film flowed down can further trap fine particle and fine drop in saturation wet flue gas, trap thin
The condensate liquid of particulate matter, 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 through receiving dirty slot 11
Into being precipitated in sedimentation basin 13, the upper layer water purification in sedimentation basin is discharged from discharge outlet 14 and recycles, the dirt of lower layer from
First valve 15 enters sludge collecting box 16, 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 the continuous heat exchange of saturation wet flue gas and heat up, eventually arrive at the cooling water for being discharged header 8 as hot water.
It is an advantage of the invention that：（1）Heat exchange efficiency is high, and integrated operation is at low cost；（2）Level-one heat taking and exchanging device realizes flue gas
The low low temperature electric dust-removal emission reduction of UTILIZATION OF VESIDUAL HEAT IN；Second-order phase transistion condenses poly- heat exchanger water in the high-humidity flue gas after recycling wet desulphurization
, also can be with except a variety of fine particle pollutants in high-humidity flue gas while dividing, three-level heating heat exchanger take heat using level-one
The heat source water heating flue gas of heat exchanger reduces equipment corrosion, thoroughly disappears white, efficiently solves " big white cigarette " phenomenon when smoke evacuation, no
Be only capable of eradicating haze pollution, moreover it is possible to be realized with a low cost moisture in environment protection standard, ultralow near-zero release, especially recovered flue gas and
Waste heat, year tens tons of water saving potential, and the water of recycling is used for desulfurization so that desulfurizing tower desulfurization not only not water consumption, moreover it is possible to
Most of moisture content in coal is recycled, supplement water is provided for desulfurization or boiler by simple process, is a new worth exploitation
Unconventional water source, especially for northwest water-deficient area；（3）Auxiliary power consumption is reduced, equipment operating cost is reduced, improves combustion
Coal efficiency can take into account the contradiction for solving environment and development；（4）By being lowered into the flue-gas temperature of electric precipitator, can effectively carry
The efficiency of dust collection of high electric precipitator；（5）By flue-gas temperature after raising desulfurizing tower, flue and cigarette after desulfurizing tower can be effectively improved
The low-temperature corrosion problem of chimney, be more advantageous to industrial smoke disappear it is white；（6）Mist heat recovering can be efficiently used, the heat of recycling removes
Outside flue gas for heating desulfurizing tower outlet, it may also be used for heat the low pressure condensation water of heat regenerative system, the heat of heating system
Net water.
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 flue gas to be discharged into the booster fan of chimney；Institute The exhanst gas outlet for stating air preheater is connected with the gas inlet of level-one heat taking and exchanging device, and the flue gas of level-one heat taking and exchanging device goes out Mouth is connected with the gas inlet of electric precipitator, and the exhanst gas outlet of electric precipitator is connected with the gas inlet of desulfurizing tower, desulfurization The gas inlet that the exhanst gas outlet of tower condenses poly- heat exchanger with second-order phase transistion is connected, and second-order phase transistion condenses the flue gas of poly- heat exchanger Outlet is connected with the gas inlet of three-level heating heat exchanger, the exhanst gas outlet of three-level heating heat exchanger and the air inlet of booster fan Mouth is connected；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 The heat exchange water out of grade heating heat exchanger is connected with the heat exchange water inlet of level-one heat taking and exchanging device；The second-order phase transistion condensation is poly- The discharge outlet of heat exchanger 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：Exchange heat shell, and smoke inlet and smoke are respectively arranged in the front and rear sides of heat exchange shell Mouthful, in the inside of heat exchange shell level-one heat exchange unit, secondary heat exchange unit and three-level are disposed with along flow of flue gas direction The structure of heat exchange unit, every grade of heat exchange unit includes：Several rows are supported at left and right sides of heat exchange shell from up to down between wall Set of heat exchange tubes, it includes several flexible heat exchanger tubes often to arrange set of heat exchange 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 The import of shape heat exchanging pipe, all snakelike heat exchange tube roads is 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 density of the level-one heat exchange unit is close higher than the heat exchanger tube of secondary heat exchange unit 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, are changed 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 it is water-bed that the collection being located at below heat exchange shell is provided on front side of the dirty slot of receipts 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 mechanisms that contamination on water-bed plate is cleared up, Tui Wu mechanisms include：It is provided with above the bottom plate that catchments water-bed with collection Plate is parallel and pushes away soiled threads bar in front and back trend, pushes away soiled threads bar by motor-driven rotation, is threaded on pushing away soiled threads bar Dirty folded plate is pushed away, the upper surface for being corrected 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 two 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, in level-one heat exchange unit all snakelike heat exchange tube roads outlet simultaneously with water outlet header be connected.
- 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 with to seal the sealing protective for covering snakelike heat exchange tube road respective side turn of bilge on the outer wall of left and right sides wall, It is respectively arranged with inspection door 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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| CN201810599531.5A CN108800180A (en) | 2018-06-12 | 2018-06-12 | A kind of industrial smoke Optimum utilization disappears white system |
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| CN201810599531.5A CN108800180A (en) | 2018-06-12 | 2018-06-12 | A kind of industrial smoke Optimum utilization disappears white system |
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Cited By (6)
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| CN109758900A (en) * | 2019-03-21 | 2019-05-17 | 北京超腾智慧能源科技股份有限公司 | A kind of low-temperature flue gas of thermal power plant application disappears white system |
| CN110145755A (en) * | 2019-05-28 | 2019-08-20 | 江苏龙净节能科技有限公司 | A kind of cooling heat exchange device of industrial smoke |
| CN110174005A (en) * | 2019-05-28 | 2019-08-27 | 江苏龙净节能科技有限公司 | A kind of large capacity condensation heat exchange device |
| CN112023593A (en) * | 2020-09-14 | 2020-12-04 | 大唐环境产业集团股份有限公司 | Multi-product recovery system and method for wet flue gas working medium containing solid particles |
| CN112933830A (en) * | 2021-01-30 | 2021-06-11 | 成都易态科技有限公司 | Heat exchange dust removal structure, heat exchange dust removal device and high-temperature dust-containing gas treatment method |
| CN110174005B (en) * | 2019-05-28 | 2024-04-19 | 江苏龙净节能科技有限公司 | High-capacity condensing heat exchange device |
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