CN108800180B - Industrial flue gas optimal utilization whitening system - Google Patents
Industrial flue gas optimal utilization whitening system Download PDFInfo
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- CN108800180B CN108800180B CN201810599531.5A CN201810599531A CN108800180B CN 108800180 B CN108800180 B CN 108800180B CN 201810599531 A CN201810599531 A CN 201810599531A CN 108800180 B CN108800180 B CN 108800180B
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- heat exchange
- flue gas
- heat exchanger
- heat
- water
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 120
- 239000003546 flue gas Substances 0.000 title claims abstract description 120
- 230000002087 whitening effect Effects 0.000 title claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 123
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 28
- 238000010438 heat treatment Methods 0.000 claims abstract description 24
- 239000000428 dust Substances 0.000 claims abstract description 22
- 238000009833 condensation Methods 0.000 claims abstract description 17
- 230000005494 condensation Effects 0.000 claims abstract description 17
- 230000001502 supplementing effect Effects 0.000 claims abstract description 6
- 238000004062 sedimentation Methods 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 9
- 230000007246 mechanism Effects 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 5
- 238000007689 inspection Methods 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 239000000779 smoke Substances 0.000 abstract description 13
- 241000255969 Pieris brassicae Species 0.000 abstract description 6
- 239000010865 sewage Substances 0.000 description 17
- 238000006477 desulfuration reaction Methods 0.000 description 16
- 230000023556 desulfurization Effects 0.000 description 16
- 239000007788 liquid Substances 0.000 description 12
- 229920006395 saturated elastomer Polymers 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 239000002918 waste heat Substances 0.000 description 8
- 239000000498 cooling water Substances 0.000 description 7
- 239000003245 coal Substances 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 239000010419 fine particle Substances 0.000 description 5
- 239000003344 environmental pollutant Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012716 precipitator Substances 0.000 description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 238000007791 dehumidification Methods 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 239000008213 purified water Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007613 environmental effect 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
- 238000005457 optimization Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005406 washing Methods 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chimneys And Flues (AREA)
Abstract
The invention discloses an industrial flue gas optimal utilization white eliminating system, which comprises a flue gas outlet of a primary heat-taking heat exchanger, a flue gas inlet of an electric dust collector, a flue gas outlet of the electric dust collector, a flue gas inlet of a desulfurizing tower, a flue gas outlet of the desulfurizing tower, a flue gas inlet of a secondary phase-change cold condensation heat exchanger, a flue gas outlet of the secondary phase-change cold condensation heat exchanger, a flue gas inlet of a tertiary heating heat exchanger and a flue gas outlet of a booster fan, wherein the primary heat-taking heat exchanger is connected with the flue gas inlet of the electric dust collector; the heat exchange water outlet of the primary heat-taking heat exchanger is connected with the heat exchange water inlet of the tertiary heating heat exchanger, and the heat exchange water outlet of the tertiary heating heat exchanger is connected with the heat exchange water inlet of the primary heat-taking heat exchanger; the water outlet of the secondary phase-change cold condensing heat exchanger is connected with the water supplementing port of the desulfurizing tower. The invention has the advantage of effectively solving the phenomenon of 'large white smoke' during smoke discharge.
Description
Technical Field
The invention relates to the technical field of flue gas treatment, in particular to an industrial flue gas optimal utilization whitening system.
Background
The energy structure of China determines that fire coal is one of important sources of atmospheric pollutants, and most coal-fired power plants are provided with desulfurization and dust removal equipment, so that ultra-low emission is striven for to meet the increasingly strict environmental emission requirements. At present, the ultra-low emission technical route comprises a low-temperature route (a low-temperature economizer is additionally arranged before electric precipitation) and a wet circuit route (a wet electric precipitator is additionally arranged after desulfurization). However, both routes inevitably have serious 'large white smoke' phenomenon when high-humidity flue gas after wet desulfurization is discharged from a chimney, so that haze is caused, and the environment is polluted.
Disclosure of Invention
The invention aims to provide an industrial smoke whitening system capable of effectively solving the 'large white smoke' phenomenon during smoke discharge.
In order to achieve the above purpose, the invention adopts the following technical scheme: the industrial flue gas optimal utilization white removing system comprises a primary heat-taking heat exchanger, an electric dust collector, a desulfurizing tower, a secondary phase-change cold condensing heat exchanger, a tertiary heating heat exchanger and a booster fan for discharging flue gas into a chimney; the flue gas outlet of the air preheater is communicated with the flue gas inlet of the primary heat-taking heat exchanger, the flue gas outlet of the primary heat-taking heat exchanger is communicated with the flue gas inlet of the electric dust collector, the flue gas outlet of the electric dust collector is communicated with the flue gas inlet of the desulfurizing tower, the flue gas outlet of the desulfurizing tower is communicated with the flue gas inlet of the secondary phase-change cold condensation heat exchanger, the flue gas outlet of the secondary phase-change cold condensation heat exchanger is communicated with the flue gas inlet of the tertiary heat exchanger, and the flue gas outlet of the tertiary heat exchanger is communicated with the air inlet of the booster fan; the heat exchange water outlet of the primary heat-taking heat exchanger is communicated with the heat exchange water inlet of the tertiary heating heat exchanger, and the heat exchange water outlet of the tertiary heating heat exchanger is communicated with the heat exchange water inlet of the primary heat-taking heat exchanger; and the water outlet of the secondary phase-change cold condensing heat exchanger is communicated with the water supplementing port of the desulfurizing tower.
Further, the aforementioned industrial flue gas optimal utilization whitening system, wherein: the structure of the secondary phase change cold condensing heat exchanger comprises: the heat exchange shell, be provided with respectively in heat exchange shell's front and back both sides and advance the mouth with go out the mouth, set gradually one-level heat exchange unit, second grade heat exchange unit and tertiary heat exchange unit along flue gas flow direction in heat exchange shell's inside, every stage heat exchange unit's structure includes: the heat exchange tubes are arranged between the left side wall and the right side wall of the heat exchange shell from top to bottom, each heat exchange tube group comprises a plurality of flexible heat exchange tubes, each flexible heat exchange tube is coiled between the left side wall and the right side wall of the heat exchange shell in a serpentine shape to form a serpentine heat exchange pipeline, each heat exchange tube group is provided with a plurality of independent parallel serpentine heat exchange pipelines, inlets of all the serpentine heat exchange pipelines are simultaneously communicated with the water inlet header, and outlets of all the serpentine heat exchange pipelines are simultaneously communicated with the water outlet header; the density of heat exchange tubes of the primary heat exchange unit is higher than that of heat exchange tubes of the secondary heat exchange unit, the density of heat exchange tubes of the secondary heat exchange unit is higher than that of heat exchange tubes of the tertiary heat exchange unit, the pipe diameter of the heat exchange tubes in the primary heat exchange unit is smaller than that of the heat exchange tubes in the secondary heat exchange unit, and the pipe diameter of the heat exchange tubes in the secondary heat exchange unit is smaller than that of the heat exchange tubes in the tertiary heat exchange unit.
Further, the aforementioned industrial flue gas optimal utilization whitening system, wherein: the utility model provides a heat exchange device, including heat exchange shell, the one end that just is close to the outlet flue is provided with the dirt groove of receiving, be provided with the water collecting bottom plate that is located the heat exchange shell below in dirt groove front side, water collecting bottom plate is along flue gas direction gradually downward to dirt groove slope setting, the front end of water collecting bottom plate is located the inlet flue below of heat exchange shell, the rear end extends to dirt groove backward, be provided with the communicating sedimentation tank in dirt groove of receiving under the centre of dirt groove, be provided with the outlet on the upper portion of sedimentation tank, be provided with the first drain of taking first valve in the bottom of sedimentation tank, be connected with the dirt collecting box under the sedimentation tank, be provided with the second drain of taking the second valve in the bottom of dirt collecting box.
Further, the aforementioned industrial flue gas optimal utilization whitening system, wherein: still including pushing away dirty mechanism that can clear up the long-pending dirty on the bottom plate of catchmenting, it includes to push away dirty mechanism: the upper part of the water collection bottom plate is provided with a dirt pushing screw rod which is parallel to the water collection bottom plate and runs forwards and backwards, the dirt pushing screw rod is driven by a motor to rotate, a dirt pushing folded plate is connected to the dirt pushing screw rod in a threaded manner, and the lower end of the dirt pushing folded plate is propped against the upper surface of the water collection bottom plate downwards.
Further, the aforementioned industrial flue gas optimal utilization whitening system, wherein: the inlets of all the snake-shaped heat exchange pipelines in the three-stage heat exchange unit are simultaneously communicated with the water inlet header, the outlets of all the snake-shaped heat exchange pipelines in the three-stage heat exchange unit and the inlets of all the snake-shaped heat exchange pipelines in the second-stage heat exchange unit are simultaneously communicated with the first middle header, the outlets of all the snake-shaped heat exchange pipelines in the second-stage heat exchange unit and the inlets of all the snake-shaped heat exchange pipelines in the first-stage heat exchange unit are simultaneously communicated with the second middle header, and the outlets of all the snake-shaped heat exchange pipelines in the first-stage heat exchange unit are simultaneously communicated with the water outlet header.
Further, the aforementioned industrial flue gas optimal utilization whitening system, wherein: the bottom of the water inlet header is provided with a water drain pipe, the bottom of the water outlet header is provided with a water outlet pipe, and the upper part of the water outlet header is provided with an exhaust pipe.
Further, the aforementioned industrial flue gas optimal utilization whitening system, wherein: sealing protection covers for sealing and covering corresponding side bending parts of the serpentine heat exchange pipeline are respectively arranged on the outer walls of the left side wall and the right side wall of the heat exchange shell, and inspection doors are respectively arranged on each sealing protection cover.
Further, the aforementioned industrial flue gas optimal utilization whitening system, wherein: a plurality of middle supporting plates for supporting the heat exchange tubes in an auxiliary mode are arranged in the heat exchange shell at intervals from left to right, and the interior of the heat exchange shell is divided into a plurality of independent parallel heat exchange channels by the middle supporting plates.
Further, the aforementioned industrial flue gas optimal utilization whitening system, wherein: the heat exchange tube in the primary heat-taking heat exchanger is an H-shaped fin tube.
Further, the aforementioned industrial flue gas optimal utilization whitening system, wherein: the heat exchange tubes in the three-stage heating heat exchanger are spiral fin tubes.
Through implementation of the technical scheme, the invention has the beneficial effects that: the heat exchange efficiency is high, and the comprehensive operation cost is low; (2) The primary heat-taking heat exchanger realizes the low-temperature electric dust removal and emission reduction of the flue gas waste heat utilization; the secondary phase-change cold condensation heat exchanger can remove various fine particulate pollutants in the high-humidity flue gas after wet desulfurization, and the tertiary heating heat exchanger utilizes heat source water of the primary heat-taking heat exchanger to heat the flue gas to reduce equipment corrosion, thoroughly eliminate white, effectively solve the phenomenon of 'large white smoke' in the process of discharging smoke, not only can remove haze pollution, but also can realize environment-friendly standard reaching and ultralow near zero emission at low cost, particularly, the water and waste heat in the flue gas are recovered, the annual water saving potential is billions tons, and the recovered water is used for desulfurization, so that the desulfurization tower is not only free from water consumption, but also can recover most of the water in coal, and water supplementing is provided for desulfurization or boilers through simple treatment, so that the desulfurization tower is a new unconventional water source worthy of development, particularly for the northwest water shortage area; (3) The power consumption of the plant is reduced, the running cost of equipment is reduced, the coal burning efficiency is improved, and the contradiction between the environment and development can be solved; (4) The dust collection efficiency of the electric dust collector can be effectively improved by reducing the temperature of the flue gas entering the electric dust collector; (5) By increasing the temperature of the flue gas after the desulfurizing tower, the low-temperature corrosion problem of a flue and a chimney after the desulfurizing tower can be effectively improved, and the industrial flue gas can be more favorably whitened; (6) The flue gas waste heat can be effectively utilized, and the recovered heat can be used for heating low condensation water of a heat recovery system and heat supply network water of a heating and heat supply system besides the flue gas at the outlet of the desulfurizing tower.
Drawings
Fig. 1 is a schematic diagram of the structural principle of the industrial flue gas optimization and utilization white eliminating system.
Fig. 2 is a schematic structural diagram of the two-stage phase-change cold condensing heat exchanger according to the present invention.
Fig. 3 is a schematic diagram of the structure in the top view of fig. 2.
Fig. 4 is a schematic view of the structure of section A-A shown in fig. 2.
Fig. 5 is an enlarged schematic view of the H site shown in fig. 4.
Detailed Description
The invention will be further described with reference to the drawings and the specific examples.
As shown in fig. 1, the system for optimizing the utilization of the industrial flue gas comprises a primary heat-taking heat exchanger 32, an electric dust collector 33, a desulfurizing tower 34, a secondary phase-change cold condensing heat exchanger 35, a tertiary heating heat exchanger 36 and a booster fan 38 for discharging the flue gas into a chimney 37; the flue gas outlet of the air preheater 31 is communicated with the flue gas inlet of the primary heat-taking heat exchanger 32, the flue gas outlet of the primary heat-taking heat exchanger 32 is communicated with the flue gas inlet of the electric precipitator 33, the flue gas outlet of the electric precipitator 33 is communicated with the flue gas inlet of the desulfurizing tower 34, the flue gas outlet of the desulfurizing tower 34 is communicated with the flue gas inlet of the secondary phase-change cold condensing heat exchanger 35, the flue gas outlet of the secondary phase-change cold condensing heat exchanger 35 is communicated with the flue gas inlet of the tertiary heating heat exchanger 36, and the flue gas outlet of the tertiary heating heat exchanger 36 is communicated with the air inlet of the booster fan 38; the heat exchange water outlet of the primary heat-taking heat exchanger 32 is communicated with the heat exchange water inlet of the tertiary heating heat exchanger 36, and the heat exchange water outlet of the tertiary heating heat exchanger 36 is communicated with the heat exchange water inlet of the primary heat-taking heat exchanger 32; the water outlet of the secondary phase-change cold condensing heat exchanger 35 is communicated with the water supplementing port of the desulfurizing tower 34; the heat exchange tubes in the primary heat-taking heat exchanger 31 can be H-shaped fin tubes, other heat exchange modules with other structures can be used, and the heat exchange tubes in the tertiary heat exchanger 36 are spiral fin tubes, and other heat exchange modules with other structures can be used;
In this embodiment, as shown in fig. 2,3, 4 and 5, the structure of the two-stage phase-change cold condensing heat exchanger includes: including heat exchange shell 1, be provided with respectively at heat exchange shell 1 front and back both sides and advance cigarette mouth 111 and play cigarette mouth 112, set gradually primary heat transfer unit 2, secondary heat transfer unit 3 and tertiary heat transfer unit 4 along the flue gas flow direction in the inside of heat exchange shell 1, because primary heat transfer unit 2, secondary heat transfer unit 3 are the same with tertiary heat transfer unit 4's structure, only take primary heat transfer unit 2's structure to illustrate below as the example, primary heat transfer unit's structure includes: the heat exchange device comprises a heat exchange shell 1, a plurality of rows of heat exchange tube groups supported between the left side wall and the right side wall of the heat exchange shell from top to bottom, wherein each row of heat exchange tube groups comprises a plurality of flexible heat exchange tubes 5, each flexible heat exchange tube 5 is coiled between the left side wall and the right side wall of the heat exchange shell 1 in a serpentine shape to form a path of serpentine heat exchange pipeline, each row of heat exchange tube groups is provided with a plurality of paths of independent parallel serpentine heat exchange pipelines, inlets of all the serpentine heat exchange pipelines are simultaneously communicated with a water inlet header 7 arranged outside the heat exchange shell, a water inlet pipe 71 is arranged at the upper part of the water inlet header 7, and outlets of all the serpentine heat exchange pipelines are simultaneously communicated with a water outlet header 8 arranged outside the heat exchange shell; in this embodiment, the inlets of all the serpentine heat exchange pipes in the three-stage heat exchange unit 4 are simultaneously communicated with the water inlet header 7, the outlets of all the serpentine heat exchange pipes in the three-stage heat exchange unit 4 and the inlets of all the serpentine heat exchange pipes in the two-stage heat exchange unit 3 are simultaneously communicated with the first middle header 9 installed outside the heat exchanger shell, the outlets of all the serpentine heat exchange pipes in the two-stage heat exchange unit 3 and the inlets of all the serpentine heat exchange pipes in the first-stage heat exchange unit 2 are simultaneously communicated with the second middle header 10 installed outside the heat exchanger shell, and the outlets of all the serpentine heat exchange pipes in the first-stage heat exchange unit 2 are simultaneously communicated with the water outlet header 8, so that the connection mode between each heat exchange unit and the water inlet header and the water outlet header is more convenient to install and maintain; the density of heat exchange tubes of the primary heat exchange unit 2 is higher than that of heat exchange tubes of the secondary heat exchange unit 3, the density of heat exchange tubes of the secondary heat exchange unit 3 is higher than that of heat exchange tubes of the tertiary heat exchange unit 4, the pipe diameters of the heat exchange tubes 5 in the primary heat exchange unit 2 are smaller than those of the heat exchange tubes 5 in the secondary heat exchange unit 3, and the pipe diameters of the heat exchange tubes 5 in the secondary heat exchange unit 3 are smaller than those of the heat exchange tubes 5 in the tertiary heat exchange unit 4;
In the embodiment, a sewage collecting tank 11 is arranged at one end, close to a smoke outlet, below a heat exchange shell 1, a water collecting bottom plate 12 positioned below the heat exchange shell 1 is arranged at the front side of the sewage collecting tank 11, the front end of the water collecting bottom plate 12 is positioned below a smoke inlet 111 of the heat exchange shell 1, the rear end of the water collecting bottom plate extends backwards to the sewage collecting tank 11, a sedimentation tank 13 communicated with the sewage collecting tank 11 is arranged right below the middle of the sewage collecting tank 11, a water outlet 14 is arranged at the upper part of the sedimentation tank 13, a first sewage drain with a first valve 15 is arranged at the bottom of the sedimentation tank 13, a sewage collecting tank 16 is connected under the sedimentation tank 13, a second sewage drain with a second valve 17 is arranged at the bottom of the sewage collecting tank 16, and loss of collected purified water can be effectively reduced through opening and closing of two valves; in the embodiment, the water collecting bottom plate is gradually downwards arranged to incline to the dirt collecting groove along the flue gas direction, so that liquid drops formed after phase change cold condensation of each heat exchange unit in the heat exchange shell 1 can be better collected;
In this embodiment, the dirt pushing mechanism is further included to clean dirt accumulated on the water collecting bottom plate 12, and the dirt pushing mechanism includes: a dirt pushing screw rod 18 which is parallel to the water collecting bottom plate 12 and runs forwards and backwards is arranged above the water collecting bottom plate 12, the dirt pushing screw rod 18 is driven to rotate by a motor 19, a dirt pushing folded plate 20 is connected to the dirt pushing screw rod 18 in a threaded manner, the lower end of the dirt pushing folded plate 20 is well propped against the upper surface of the water collecting bottom plate 12 downwards, the dirt pushing screw rod 18 is driven to rotate by the motor 19, the dirt pushing folded plate 20 is synchronously driven to move forwards and backwards along the dirt pushing screw rod 18, so that dirt on the upper surface of the water collecting bottom plate 12 is pushed into the dirt collecting groove 11, and the dirt on the water collecting bottom plate 12 is cleaned;
In the embodiment, the drain pipe 21 is arranged at the bottom of the water inlet header 7, so that water in the water inlet header 7 can be well emptied; in the embodiment, the water outlet pipe 22 is arranged at the bottom of the water outlet header 8, the air outlet pipe 23 is arranged at the upper part of the water outlet header 8, and the water outlet header is timely exhausted through the air outlet pipe, so that the use stability of the heat exchanger can be ensured; in the embodiment, the outer walls of the left and right side walls of the heat exchange shell 1 are respectively provided with the sealing protection covers 24 for sealing and covering the corresponding side bending parts 6 of the serpentine heat exchange pipeline, so that the flexible heat exchange pipe can be better protected, the flexible heat exchange pipe is prevented from being damaged in the installation and use processes of the equipment, and the service life of the equipment is further prolonged; in the embodiment, each sealing protection cover 24 is respectively provided with an inspection door 25, and the use condition of the bent part of the serpentine heat exchange pipeline can be inspected and maintained in time through the inspection doors, so that equipment is better protected; in the embodiment, a plurality of middle supporting plates 26 for supporting the flexible heat exchange tubes 5 in an auxiliary manner are arranged in the heat exchange shell 1 at intervals from left to right, the middle supporting plates 26 divide the interior of the heat exchange shell 1 into a plurality of independent parallel heat exchange channels, and unordered flue gas is changed into ordered flue gas to be discharged after passing through each heat exchange channel in the heat exchange shell 1;
The working principle of the invention is as follows:
The flue gas with the temperature of about 130-160 ℃ discharged from the flue gas outlet of the boiler air preheater 31 firstly enters the primary heat-taking heat exchanger 32 for cooling to about 90 ℃, then enters the electric dust collector 33 for electric dust removal, acid, dioxin, heavy metal and other harmful components contained in the flue gas are removed, then enters the desulfurizing tower 34 for desulfurization, the flue gas is then enters the secondary phase-change cold condensation heat exchanger 35 for condensation and dehumidification after desulfurization, the secondary phase-change cold condensation heat exchanger 35 not only can recycle the moisture in the wet flue gas discharged from the desulfurizing tower 34, but also can remove the water-soluble pollutants such as fine particle dust, sulfur dioxide, acid, heavy metal and the like remained in the wet flue gas, the flue gas after condensation and dehumidification in the secondary phase-change cold condensation heat exchanger 35 is then enters the tertiary heat exchanger 36 for heating, and then is discharged from the chimney 37 through the booster fan 38, and the phenomenon of 'large white smoke' can not occur any more at the moment when the flue gas is discharged from the chimney 37; in the working process of the system, hot water generated by recycling the waste heat of the flue gas in the primary heat-taking heat exchanger 32 enters the tertiary heat exchanger 36 to be used as a heating medium to heat the flue gas, the hot water entering the tertiary heat exchanger 36 heats the flue gas and then becomes cold, and the cold water is recycled to enter the primary heat-taking heat exchanger 32 to recycle the waste heat of the flue gas;
meanwhile, condensed water recovered by the secondary phase-change cold condensation heat exchanger 35 can continuously enter the desulfurizing tower 34 to be used as desulfurizing water, so that desulfurizing water of the desulfurizing tower 34 is greatly reduced;
the working process of the secondary phase-change cold condensing heat exchanger 35 is as follows:
Cooling water is firstly introduced into the water inlet header 7 from the water inlet pipe 71, the cooling water in the water inlet header 7 firstly enters the first middle header 9 through the flexible heat exchange pipe 5 in the three-stage heat exchange unit 4, the cooling water in the first middle header 9 then enters the second middle header 10 through each serpentine heat exchange pipeline in the second heat exchange unit 3, the cooling water in the second middle header 10 then enters the water outlet header 8 through each serpentine heat exchange pipeline in the first-stage heat exchange unit 2, and the cooling water in the water outlet header 8 is discharged from the water outlet pipe 17;
Then, saturated wet flue gas from a desulfurizing tower in the wet desulfurization system enters a heat exchange shell 1, and the saturated wet flue gas sequentially passes through a primary heat exchange unit 2, a secondary heat exchange unit 3 and a tertiary heat exchange unit 4 in the heat exchange shell 1 and then is discharged out of the heat exchange shell 1, and the saturated wet flue gas is continuously subjected to heat exchange with flexible heat exchange tubes 5 in each heat exchange unit to be cooled in the process of passing through the primary heat exchange unit 2, the secondary heat exchange unit 3 and the tertiary heat exchange unit 4, and the gradient change of the density and the tube diameter of the heat exchange tubes in the primary heat exchange unit 2, the secondary heat exchange unit 3 and the tertiary heat exchange unit 4 is realized, so that the gradient cooling of the saturated wet flue gas is realized, the heat exchange efficiency is high, the cooling effect is good, and the trapping effect on fine particles is good; in the process of reducing the temperature of saturated wet flue gas, supersaturated vapor in the saturated wet flue gas can generate phase change, the saturated vapor is condensed into liquid state from vapor state, generated tiny fog drops can collide and adhere to the surface of the flexible heat exchange tube 5 of each heat exchange unit to form a liquid film, fine particles in the saturated wet flue gas can be trapped by the liquid film on the surface of the flexible heat exchange tube 5 when passing through the flexible heat exchange tube 5 through turbulence or heat movement, and simultaneously, the liquid film can fall along the gravity direction after reaching a certain thickness along with the continuous increase of the condensed liquid, a new water film is formed at the falling position of the liquid film, the water film is acidic liquid, the acid washing function is realized, and the heat exchange tube material is modified fluoroplastic, and has good corrosion resistance and contamination resistance; the liquid film can drop from the flexible heat exchange tube 5 to form a rainfall effect, in the rainfall process of the liquid film, the flowing liquid film can further capture fine particles and fine liquid drops in saturated wet flue gas, condensate which captures the fine particles can drop onto the water collecting bottom plate 12 and slide down to the sewage collecting tank 11 along the water collecting bottom plate 12, the sewage enters the sedimentation tank 13 through the sewage collecting tank 11 to be sedimentated, upper-layer purified water in the sedimentation tank is discharged from the water outlet 14 to be recycled, lower-layer sewage enters the sewage collecting tank 16 from the first valve 15, and after the sewage collecting tank 16 is fully filled with certain sewage, the second valve 17 is opened to discharge the sewage; and the cooling water is heated along with continuous heat exchange with saturated wet flue gas, and finally the cooling water reaching the water outlet header 8 is hot water.
The invention has the advantages that: the heat exchange efficiency is high, and the comprehensive operation cost is low; (2) The primary heat-taking heat exchanger realizes the low-temperature electric dust removal and emission reduction of the flue gas waste heat utilization; the secondary phase-change cold condensation heat exchanger can remove various fine particulate pollutants in the high-humidity flue gas after wet desulfurization, and the tertiary heating heat exchanger utilizes heat source water of the primary heat-taking heat exchanger to heat the flue gas to reduce equipment corrosion, thoroughly eliminate white, effectively solve the phenomenon of 'large white smoke' in the process of discharging smoke, not only can remove haze pollution, but also can realize environment-friendly standard reaching and ultralow near zero emission at low cost, particularly, the water and waste heat in the flue gas are recovered, the annual water saving potential is billions tons, and the recovered water is used for desulfurization, so that the desulfurization tower is not only free from water consumption, but also can recover most of the water in coal, and water supplementing is provided for desulfurization or boilers through simple treatment, so that the desulfurization tower is a new unconventional water source worthy of development, particularly for the northwest water shortage area; (3) The power consumption of the plant is reduced, the running cost of equipment is reduced, the coal burning efficiency is improved, and the contradiction between the environment and development can be solved; (4) The dust collection efficiency of the electric dust collector can be effectively improved by reducing the temperature of the flue gas entering the electric dust collector; (5) By increasing the temperature of the flue gas after the desulfurizing tower, the low-temperature corrosion problem of a flue and a chimney after the desulfurizing tower can be effectively improved, and the industrial flue gas can be more favorably whitened; (6) The flue gas waste heat can be effectively utilized, and the recovered heat can be used for heating low condensation water of a heat recovery system and heat supply network water of a heating and heat supply system besides the flue gas at the outlet of the desulfurizing tower.
Claims (8)
1. An industrial flue gas optimal utilization whitening system is characterized in that: the flue gas purifying device comprises an air preheater, a primary heat-taking heat exchanger, an electric dust collector, a desulfurizing tower, a secondary phase-change cold condensing heat exchanger, a tertiary heating heat exchanger, a chimney and a booster fan for discharging flue gas into the chimney; the flue gas outlet of the air preheater is communicated with the flue gas inlet of the primary heat-taking heat exchanger, the flue gas outlet of the primary heat-taking heat exchanger is communicated with the flue gas inlet of the electric dust collector, the flue gas outlet of the electric dust collector is communicated with the flue gas inlet of the desulfurizing tower, the flue gas outlet of the desulfurizing tower is communicated with the flue gas inlet of the secondary phase-change cold condensation heat exchanger, the flue gas outlet of the secondary phase-change cold condensation heat exchanger is communicated with the flue gas inlet of the tertiary heat exchanger, and the flue gas outlet of the tertiary heat exchanger is communicated with the air inlet of the booster fan; the heat exchange water outlet of the primary heat-taking heat exchanger is communicated with the heat exchange water inlet of the tertiary heating heat exchanger, and the heat exchange water outlet of the tertiary heating heat exchanger is communicated with the heat exchange water inlet of the primary heat-taking heat exchanger; the water outlet of the secondary phase-change cold condensing heat exchanger is communicated with the water supplementing port of the desulfurizing tower;
The structure of the secondary phase change cold condensing heat exchanger comprises: the heat exchange shell, be provided with respectively in heat exchange shell's front and back both sides and advance the mouth with go out the mouth, set gradually one-level heat exchange unit, second grade heat exchange unit and tertiary heat exchange unit along flue gas flow direction in heat exchange shell's inside, every stage heat exchange unit's structure includes: the heat exchange tubes are arranged between the left side wall and the right side wall of the heat exchange shell from top to bottom, each row of heat exchange tube comprises a plurality of flexible heat exchange tubes, each flexible heat exchange tube is coiled between the left side wall and the right side wall of the heat exchange shell in a serpentine shape to form a path of serpentine heat exchange pipeline, each row of heat exchange tube is provided with a plurality of independent parallel serpentine heat exchange pipelines, inlets of all the serpentine heat exchange pipelines are simultaneously communicated with a water inlet header arranged outside the heat exchange shell, and outlets of all the serpentine heat exchange pipelines are simultaneously communicated with a water outlet header arranged outside the heat exchange shell; the density of the heat exchange tubes of the primary heat exchange unit is higher than that of the heat exchange tubes of the secondary heat exchange unit, the density of the heat exchange tubes of the secondary heat exchange unit is higher than that of the heat exchange tubes of the tertiary heat exchange unit, the pipe diameters of the heat exchange tubes in the primary heat exchange unit are smaller than those of the heat exchange tubes in the secondary heat exchange unit, and the pipe diameters of the heat exchange tubes in the secondary heat exchange unit are smaller than those of the heat exchange tubes in the tertiary heat exchange unit;
The inlets of all the snake-shaped heat exchange pipelines in the three-stage heat exchange unit are simultaneously communicated with a water inlet header arranged outside the heat exchanger shell, the outlets of all the snake-shaped heat exchange pipelines in the three-stage heat exchange unit and the inlets of all the snake-shaped heat exchange pipelines in the second-stage heat exchange unit are simultaneously communicated with a first middle header arranged outside the heat exchanger shell, the outlets of all the snake-shaped heat exchange pipelines in the second-stage heat exchange unit and the inlets of all the snake-shaped heat exchange pipelines in the first-stage heat exchange unit are simultaneously communicated with a second middle header arranged outside the heat exchanger shell, and the outlets of all the snake-shaped heat exchange pipelines in the first-stage heat exchange unit are simultaneously communicated with a water outlet header arranged outside the heat exchanger shell.
2. An industrial flue gas optimal utilization whitening system according to claim 1, wherein: the utility model provides a heat exchange device, including heat exchange shell, the one end that just is close to the outlet flue is provided with the dirt groove of receiving, be provided with the water collecting bottom plate that is located the heat exchange shell below in dirt groove front side, water collecting bottom plate is along flue gas direction gradually downward to dirt groove slope setting, the front end of water collecting bottom plate is located the inlet flue below of heat exchange shell, the rear end extends to dirt groove backward, be provided with the communicating sedimentation tank in dirt groove of receiving under the centre of dirt groove, be provided with the outlet on the upper portion of sedimentation tank, be provided with the first drain of taking first valve in the bottom of sedimentation tank, be connected with the dirt collecting box under the sedimentation tank, be provided with the second drain of taking the second valve in the bottom of dirt collecting box.
3. An industrial flue gas optimal utilization whitening system according to claim 2, wherein: still including pushing away dirty mechanism that can clear up the long-pending dirty on the bottom plate of catchmenting, it includes to push away dirty mechanism: the upper part of the water collection bottom plate is provided with a dirt pushing screw rod which is parallel to the water collection bottom plate and runs forwards and backwards, the dirt pushing screw rod is driven by a motor to rotate, a dirt pushing folded plate is connected to the dirt pushing screw rod in a threaded manner, and the lower end of the dirt pushing folded plate is propped against the upper surface of the water collection bottom plate downwards.
4. An industrial flue gas optimal utilization whitening system according to claim 1, wherein: the bottom of the water inlet header is provided with a water drain pipe, the bottom of the water outlet header is provided with a water outlet pipe, and the upper part of the water outlet header is provided with an exhaust pipe.
5. An industrial flue gas optimal utilization whitening system according to claim 1, wherein: sealing protection covers for sealing and covering corresponding side bending parts of the serpentine heat exchange pipeline are respectively arranged on the outer walls of the left side wall and the right side wall of the heat exchange shell, and inspection doors are respectively arranged on each sealing protection cover.
6. An industrial flue gas optimal utilization whitening system according to claim 1, wherein: a plurality of middle supporting plates for supporting the heat exchange tubes in an auxiliary mode are arranged in the heat exchange shell at intervals from left to right, and the interior of the heat exchange shell is divided into a plurality of independent parallel heat exchange channels by the middle supporting plates.
7. An industrial flue gas optimal utilization whitening system according to claim 1, wherein: the heat exchange tube in the primary heat-taking heat exchanger is an H-shaped fin tube.
8. An industrial flue gas optimal utilization whitening system according to claim 1, wherein: the heat exchange tubes in the three-stage heating heat exchanger are spiral fin tubes.
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| 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 |
| 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 |
| 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 |
| CN112933830B (en) * | 2021-01-30 | 2022-09-09 | 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 |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201387263Y (en) * | 2009-02-20 | 2010-01-20 | 山东省高密蓝天节能环保科技有限公司 | Sewage heat exchanger |
| CN203310295U (en) * | 2013-01-21 | 2013-11-27 | 英特换热设备(浙江)有限公司 | Heat exchange tube with variable diameter |
| CN104832939A (en) * | 2015-04-28 | 2015-08-12 | 杭州华电能源工程有限公司 | System and method for recovering water of smoke based on fluorine plastic heat exchanger |
| KR101568382B1 (en) * | 2015-04-13 | 2015-11-12 | 황소용 | Position direction display device is mounted underwater balance type sludge collector |
| CN205007792U (en) * | 2015-08-25 | 2016-02-03 | 贺方昀 | Wet flue gas desulfurization flue gas processing mechanism |
| CN205137507U (en) * | 2015-12-02 | 2016-04-06 | 中能服能源科技股份有限公司 | Water waste heat recovery system is received in dust removal of saturated flue gas behind desulfurizing tower |
| CN205640961U (en) * | 2016-05-19 | 2016-10-12 | 洛阳瑞昌石油化工设备有限公司 | Reduce energy -concerving and environment -protective equipment of white cigarette of flue gas |
| CN106801884A (en) * | 2016-11-22 | 2017-06-06 | 浙江巨化热电有限公司 | A kind of smoke comprehensive processing unit and its method |
| CN107062956A (en) * | 2017-05-12 | 2017-08-18 | 江苏龙净节能科技有限公司 | A kind of spiral finned tube heat-exchanger rig utilized for Large Copacity fume afterheat |
| CN107737468A (en) * | 2017-11-15 | 2018-02-27 | 武汉创新特科技有限公司 | Detention tank clears up device of sludge |
| CN207365088U (en) * | 2017-10-19 | 2018-05-15 | 江苏龙净节能科技有限公司 | A kind of smoke multistage heating unit |
| CN208458002U (en) * | 2018-06-12 | 2019-02-01 | 江苏龙净节能科技有限公司 | A kind of industrial smoke Optimum utilization disappears white system |
-
2018
- 2018-06-12 CN CN201810599531.5A patent/CN108800180B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201387263Y (en) * | 2009-02-20 | 2010-01-20 | 山东省高密蓝天节能环保科技有限公司 | Sewage heat exchanger |
| CN203310295U (en) * | 2013-01-21 | 2013-11-27 | 英特换热设备(浙江)有限公司 | Heat exchange tube with variable diameter |
| KR101568382B1 (en) * | 2015-04-13 | 2015-11-12 | 황소용 | Position direction display device is mounted underwater balance type sludge collector |
| CN104832939A (en) * | 2015-04-28 | 2015-08-12 | 杭州华电能源工程有限公司 | System and method for recovering water of smoke based on fluorine plastic heat exchanger |
| CN205007792U (en) * | 2015-08-25 | 2016-02-03 | 贺方昀 | Wet flue gas desulfurization flue gas processing mechanism |
| CN205137507U (en) * | 2015-12-02 | 2016-04-06 | 中能服能源科技股份有限公司 | Water waste heat recovery system is received in dust removal of saturated flue gas behind desulfurizing tower |
| CN205640961U (en) * | 2016-05-19 | 2016-10-12 | 洛阳瑞昌石油化工设备有限公司 | Reduce energy -concerving and environment -protective equipment of white cigarette of flue gas |
| CN106801884A (en) * | 2016-11-22 | 2017-06-06 | 浙江巨化热电有限公司 | A kind of smoke comprehensive processing unit and its method |
| CN107062956A (en) * | 2017-05-12 | 2017-08-18 | 江苏龙净节能科技有限公司 | A kind of spiral finned tube heat-exchanger rig utilized for Large Copacity fume afterheat |
| CN207365088U (en) * | 2017-10-19 | 2018-05-15 | 江苏龙净节能科技有限公司 | A kind of smoke multistage heating unit |
| CN107737468A (en) * | 2017-11-15 | 2018-02-27 | 武汉创新特科技有限公司 | Detention tank clears up device of sludge |
| CN208458002U (en) * | 2018-06-12 | 2019-02-01 | 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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