CN106693695A - Energy-saving type flue gas treating system - Google Patents
Energy-saving type flue gas treating system Download PDFInfo
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- CN106693695A CN106693695A CN201611263434.6A CN201611263434A CN106693695A CN 106693695 A CN106693695 A CN 106693695A CN 201611263434 A CN201611263434 A CN 201611263434A CN 106693695 A CN106693695 A CN 106693695A
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- flue gas
- liquid
- gas
- equipment
- energy
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 137
- 239000003546 flue gas Substances 0.000 title claims abstract description 137
- 239000007789 gas Substances 0.000 claims abstract description 89
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 33
- 230000023556 desulfurization Effects 0.000 claims abstract description 33
- 238000001816 cooling Methods 0.000 claims abstract description 21
- 239000000428 dust Substances 0.000 claims abstract description 8
- 239000000779 smoke Substances 0.000 claims description 33
- 238000010438 heat treatment Methods 0.000 claims description 26
- 238000004134 energy conservation Methods 0.000 claims description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 238000009833 condensation Methods 0.000 claims description 7
- 230000005494 condensation Effects 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000012717 electrostatic precipitator Substances 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 235000019504 cigarettes Nutrition 0.000 claims description 3
- 239000012809 cooling fluid Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 239000008239 natural water Substances 0.000 claims description 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000010531 catalytic reduction reaction Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 21
- 238000005260 corrosion Methods 0.000 description 19
- 230000007797 corrosion Effects 0.000 description 19
- 239000011248 coating agent Substances 0.000 description 18
- 238000000576 coating method Methods 0.000 description 18
- 238000010586 diagram Methods 0.000 description 12
- 239000002826 coolant Substances 0.000 description 10
- 239000003599 detergent Substances 0.000 description 10
- 238000005452 bending Methods 0.000 description 9
- 238000004140 cleaning Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 239000002131 composite material Substances 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8603—Removing sulfur compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G9/00—Cleaning by flushing or washing, e.g. with chemical solvents
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses an energy-saving type flue gas treating system and relates to the technical field of treatment of high-temperature flue gas. The energy-saving type flue gas treating system comprises boiler equipment combined with an SCR (Selective Catalytic Reduction) denitrification reactor, preheating equipment and dust removing equipment and also comprises liquid-gas type flue gas cooling equipment and flue gas desulfurization equipment, wherein a hot air inlet is formed in the boiler equipment; a high-temperature flue gas outlet is formed in the SCR denitrification reactor; an inlet of the dust removing equipment is communicated with a preheating flue gas outlet; after flowing out of the dust removing equipment, the flue gas is firstly cooled during the shell pass of the liquid-gas type flue gas cooling equipment, and then is exhausted after being desulfurized by the flue gas desulfurization equipment; or, the flue gas is firstly desulfurized by the flue gas desulfurization equipment, and then is exhausted after being cooled during the shell pass of the liquid-gas type flue gas cooling equipment. Compared with the existing process, the energy-saving type flue gas treating system disclosed by the invention has the advantages that the heat of the flue gas is fully utilized, so that the energy consumption is greatly saved; and the application range is wide, and dust, sulfide and nitric oxide in the flue gas can be effectively treated.
Description
Technical field
The present invention relates to high-temperature flue gas processing technology field, in particular to a kind of smoke processing system of energy-conservation.
Background technology
With the increasingly depleted of oil, coal etc., energy problem is increasingly highlighted in face of people, except tapping a new source of energy
Outward, the saving of the existing energy and recycling also turn into people's priority fields of study.
In energy utilization technology, heat exchanger be cooling hot fluid each other heat-shift and be not directly contacted with one
The equipment of kind, pipe heat exchanger therein has a wide range of applications in fields such as coal-burning boiler, waste incineration and generating electricities.
High-temperature flue gas are cooled down as cooling medium using the liquid phase thing such as water, heated water can be used as other field
Thermal medium utilized, such as warm oneself, be improve efficiency of energy utilization effective means；But the density of water compared with for air more
Greatly, for as heat exchanger, with water as tube side cooling media when, in the case of larger, it is ensured that while sealing
The support and load-bearing of heat exchanger tube become the problem of urgent need to resolve.
Under the premise of herein, liquid-gas formula heat exchanger can play an important role in high-temperature flue gas process field.
The content of the invention
Present invention aim to provide a kind of smoke processing system of energy-conservation, it is adaptable to high-temperature flue gas treatment, use
Liquid-gas formula heat exchanger, energy saving meets the theory of environmental protection.
To achieve the above object, the smoke processing system of a kind of energy-conservation designed by the present invention, including one and SCR denitration
The boiler plant that reactor is combined, is provided with hot air inlet on the boiler plant, set on the SCR denitration reactor
There is high-temperature flue gas outlet；
Also include a pre-heating device, high-temperature flue gas entry, preheating exhanst gas outlet, cold air are provided with the pre-heating device and are entered
Mouthful and hot air outlet, wherein, the high-temperature flue gas entry is connected with the high-temperature flue gas outlet, the hot air outlet with
The hot air inlet is connected；
Also include a cleaner, the entrance of the cleaner is connected with the preheating exhanst gas outlet；
After also including that a liquid-gas formula flue gas cool-down equipment and a flue gas desulfurization device, flue gas flow out from the cleaner,
The shell side cooling of the liquid-gas formula flue gas cool-down equipment is first passed through, then is discharged after carrying out desulfurization through the flue gas desulfurization device；
Or, flue gas first passes through the flue gas desulfurization device carries out desulfurization, then by the shell side of the liquid-gas formula flue gas cool-down equipment
Discharged after cooling.
Used as the preferred of above-mentioned technical proposal, flue gas first passes through the liquid-gas formula flue gas from after cleaner outflow
The shell side cooling of cooling system, then desulfurization is carried out through the flue gas desulfurization device, then again by liquid-gas formula flue gas heating device
Shell side heat up after discharge, the tube side of the liquid-gas formula flue gas cool-down equipment and the liquid-gas formula flue gas heating device constitutes one
Individual loop.
As the preferred of above-mentioned technical proposal, between the flue gas desulfurization device and the liquid-gas formula flue gas heating device
Liquid-gas formula flue gas cool-down auxiliary equipment is additionally provided with, the liquid-gas formula flue gas cool-down auxiliary equipment walks tube side using natural water source
Flue gas is cooled down, coolant auxiliary holding tank is provided with below.
Used as the preferred of above-mentioned technical proposal, the liquid-gas formula flue gas cool-down equipment and the liquid-gas formula flue gas heat up and set
Condensation water- to-water heat exchanger is provided with the loop that standby tube side is constituted.
Used as the preferred of above-mentioned technical proposal, the liquid-gas formula flue gas cool-down equipment and the liquid-gas formula flue gas heat up and set
Condensation water- to-water heat exchanger is provided with the loop that standby tube side is constituted.
Used as the preferred of above-mentioned technical proposal, the flue gas first passes through the liquid-gas formula from after cleaner outflow
The shell side cooling of flue gas cool-down equipment, then discharge after carrying out desulfurization through the flue gas desulfurization device, the liquid-gas formula flue gas cool-down
The tube side of equipment constitutes loop, and the loop flows through the part or position for needing heat exchange.
Used as the preferred of above-mentioned technical proposal, the tube side of the liquid-gas formula flue gas cool-down equipment constitutes loop, the loop
On be connected with the tube side of liquid-gas heat transmission equipment, shell side one end of the liquid-gas heat transmission equipment is connected with the cool air inlet
Logical, the other end blasts cold air.
Used as the preferred of above-mentioned technical proposal, flue gas first passes through the flue gas desulfurization device and carries out desulfurization, then by described
Discharged after the shell side cooling of liquid-gas formula flue gas cool-down equipment, valve be provided with below the liquid-gas formula flue gas cool-down equipment,
The valve lower section is provided with cooling fluid collector.
As the preferred of above-mentioned technical proposal, the cleaner be electrostatic precipitator, spray deduster, film dust-remover,
The combination of one or more in sack cleaner, cyclone dust collectors.
As the preferred of above-mentioned technical proposal, air-introduced machine is provided with the export pipeline of the cleaner.
Above-mentioned liquid-gas formula flue gas cool-down equipment, liquid-gas formula flue gas heating device and liquid-gas formula flue gas cool-down auxiliary set
It is standby, including the upper perforated plate of sealing hole and the support being arranged on below the upper perforated plate are provided with, the support is by the vertical of longitudinal direction
The crossbeam of post and transverse direction is combined, crossbeam in the vertical direction interval on the column, the crossbeam it
Between be additionally provided with heat exchanger tube stopping means, for making many longitudinally disposed heat exchanger tubes in order positioning, the heat exchanger tube with it is described
Upper perforated plate intersection is sealedly connected in the sealing hole, and is formed in the support via the heat exchanger tube stopping means
At least one back bending.
Used as the preferred of above-mentioned technical proposal, the heat exchanger tube is sealedly connected in the sealing hole, in the heat exchanger tube
Internal lining pipe is provided with, the heat exchanger tube to the inwall direction tensioner of the sealing hole, is formed the interior of sealing hole by the internal lining pipe
The composite sandwich structural of wall-heat exchange tube wall-liner tube wall.
The heat exchanger tube is made of corrosion resistant light material, preferably PTFE material.
As the preferred of above-mentioned technical proposal, corrosion-resistant coating draw-in groove is offered on the inwall of the sealing hole lower end, it is described
Corrosion-resistant coating draw-in groove is cylindrical in shape, for being connected with corrosion-resistant coating.
Used as the preferred of above-mentioned technical proposal, the corrosion-resistant coating is included positioned at the anticorrosion sheet material of bottom and positioned at upper
Portion and the position anticorrosion Access Division corresponding with the corrosion-resistant coating draw-in groove, the anticorrosion Access Division is shaped as and institute
State tubular of the corrosion-resistant coating draw-in groove to adaptation；That is, in the installation position of the corrosion-resistant coating, the inwall of sealing hole-anti-is formd
Corrode the composite sandwich structural of Access Division-heat exchange tube wall-liner tube wall.
As the preferred of above-mentioned technical proposal, the position interval that the inwall of the sealing hole is connected with the heat exchanger tube
It is provided with heat exchanger tube draw-in groove.
As the preferred of above-mentioned technical proposal, the longitudinal sectional shape of the heat exchanger tube draw-in groove be it is trapezoidal, and trapezoidal bottom,
Outer wall of the bottom i.e. more long near the heat exchanger tube.
Used as the preferred of above-mentioned technical proposal, the position that the tube wall of the internal lining pipe is in contact with the heat exchanger tube is provided with
Ripple Access Division.
Used as the preferred of above-mentioned technical proposal, the ripple Access Division is provided with interval towards the sealing hole inwall direction
Burr, heat exchanger tube groove position is corresponding described in the position of the burr, i.e., the related heat exchange tube wall clamping of described burr
Enter in the heat exchanger tube draw-in groove, form the composite intermediate layer interface arrangment of burr-heat exchange tube wall-heat exchanger tube draw-in groove.
As the preferred of above-mentioned technical proposal, the hard member that the upper perforated plate and the internal lining pipe are made for stainless steel, institute
State the soft pipe that heat exchanger tube is made for PTFE material.
As the preferred of above-mentioned technical proposal, the upper end flush of the upper end of the internal lining pipe and the upper perforated plate,
The bottom of the internal lining pipe is provided with extension beyond the corrosion-resistant coating position.
Used as the preferred of above-mentioned technical proposal, the extension is the cone that internal diameter is gradually reduced downwards.
Cone plays a part of injection current, can increase the flow velocity of water.
Used as the preferred of above-mentioned technical proposal, the two ends of the heat exchanger tube stopping means are socketed in described by crossbeam sleeve
On crossbeam, the heat exchanger tube limit for connecting constituted by several heat exchanger tube sleeves is provided between two crossbeam sleeves at two ends
Position portion, the heat exchanger tube limiting section is hinged with the crossbeam sleeve.
As the preferred of above-mentioned technical proposal, plane where the cross section of the crossbeam sleeve, with the heat exchanger tube sleeve
Cross section where plane it is perpendicular.
Cooling is provided with as the preferred of above-mentioned technical proposal, on the upper perforated plate at the sealing of the tube end to be situated between
Matter throughput, the cooling medium for converging injection/outflow.
As the preferred of above-mentioned technical proposal, when the heat exchanger tube forms more than two back bending in the support, institute
State and be provided with upper perforated plate elbow holding part, it is described for placing the back bending that the heat exchanger tube is formed on the upper perforated plate
Elbow holding part is arranged between two cooling medium circulation portions.
Used as the preferred of above-mentioned technical proposal, the one side of the support is additionally provided with cleaning device, the cleaning device bag
Branch line detergent line, the Yi Jicong for include a longitudinally disposed main detergent line, extending laterally in the main detergent line
The branch line detergent line top set simultaneously extends into the drip washing pipeline of the internal stent, and cleaning is provided with the drip washing pipeline
Hole, cleaning fluid sprays out exchange heat pipe and is cleaned from the clean-out opening.
The present invention compared with prior art, with advantages below and beneficial effect：
（1）The smoke processing system of the energy-conservation makes full use of flue gas heat in itself compared to existing process, greatlys save energy
Consumption；
（2）The smoke processing system of the energy-conservation is applied widely, high-temperature flue gas, the bar of different natural environments for different temperatures
Part can be adapted；
（3）The smoke processing system of the energy-conservation can effectively process dust in flue gas, sulfide and nitrogen oxides.
Brief description of the drawings
Fig. 1 is liquid-gas formula heat exchanger dimensional structure diagram.
Fig. 2 is the cross-sectional view of the heat exchange tube seal structure of liquid-gas formula heat exchanger.
Fig. 3 is heat exchanger tube stopping means and crossbeam and the attachment structure schematic diagram of heat exchanger tube.
Fig. 4 is heat exchanger tube back bending distribution schematic diagram in embodiment 1 and embodiment 3.
Fig. 5 is heat exchanger tube back bending distribution schematic diagram in embodiment 2.
Fig. 6 is the schematic diagram of smoke processing system described in embodiment 4；
Fig. 7 is the schematic diagram of smoke processing system described in embodiment 5；
Fig. 8 is the schematic diagram of smoke processing system described in embodiment 6；
Fig. 9 is the schematic diagram of smoke processing system described in embodiment 7；
Figure 10 is the schematic diagram of smoke processing system described in embodiment 8；
Figure 11 is the schematic diagram of smoke processing system described in embodiment 9；
Figure 12 is the schematic diagram of smoke processing system described in embodiment 10；
Figure 13 is the schematic diagram of smoke processing system described in embodiment 11；
In figure：Heat exchanger tube a, boiler plant 01, SCR denitration reactor 01-1, hot air inlet 01-2, high-temperature flue gas outlet 01-
3rd, pre-heating device 02, high-temperature flue gas entry 02-1, preheating exhanst gas outlet 02-2, cool air inlet 02-3, hot air outlet 02-4,
Cleaner 03, liquid-gas formula flue gas cool-down equipment 04, cooling fluid collector 04-1, flue gas desulfurization device 05, liquid-gas formula flue gas
Heating device 06, liquid-gas formula flue gas cool-down auxiliary equipment 07, coolant auxiliary holding tank 07-1, condensation water- to-water heat exchanger 08, liquid-
Gas heat transmission equipment 09, upper perforated plate 1, sealing hole 11, corrosion-resistant coating draw-in groove 11-1, heat exchanger tube draw-in groove 11-2, internal lining pipe 12, ripple card
Socket part 12-1, extension 12-2, corrosion-resistant coating 13, anticorrosion sheet material 13-1, anticorrosion Access Division 13-2, cooling medium circulation portion
14th, elbow holding part 15, support 2, column 21, crossbeam 22, heat exchanger tube stopping means 23, crossbeam sleeve 231, heat exchanger tube sleeve
232nd, cleaning device 3, main detergent line 31, branch line detergent line 32, drip washing pipeline 33.
Specific embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings：
Embodiment 1：With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a kind of liquid-gas formula heat exchanger, including the stainless steel for being provided with sealing hole 11
Matter upper perforated plate 1 and the support 2 being arranged on below the upper perforated plate 1, the support 2 is by the column 21 of longitudinal direction and the crossbeam of transverse direction
22 combine, the in the vertical direction of the crossbeam 22 interval on the column 21, also set between the crossbeam 22
Be equipped with heat exchanger tube stopping means 23, for making many longitudinally disposed heat exchanger tube a in order positioning, the heat exchanger tube a with it is described on
The intersection of tube sheet 1 is sealedly connected in the sealing hole 11, and via the heat exchanger tube stopping means 23 in the support 2
Form a back bending.
The heat exchanger tube a is sealedly connected in the sealing hole 11, and internal lining pipe 12 is provided with the heat exchanger tube a, described
What the position that the inwall of sealing hole 11 is connected with the heat exchanger tube a was spaced is provided with heat exchanger tube draw-in groove 11-2, the heat exchanger tube
The longitudinal sectional shape of draw-in groove 11-2 is trapezoidal, and trapezoidal bottom, a bottom i.e. more long are close to the outer wall of the heat exchanger tube a,
The position that the tube wall of the internal lining pipe 12 is in contact with the heat exchanger tube a is provided with ripple Access Division 12-1, the ripple clamping
Portion 12-1 sets spaced burr, heat exchanger tube draw-in groove described in the position of the burr towards the inwall direction of the sealing hole 11
11-2 positions are corresponding, the internal lining pipe 12 by inwall direction tensioner from the heat exchanger tube a to the sealing hole 11, i.e., it is described convex
The related heat exchanger tube a wall clampings of line enter in the heat exchanger tube draw-in groove 11-2, form burr-heat exchanger tube a walls-heat exchanger tube draw-in groove
The composite intermediate layer interface arrangment of 11-2.
Corrosion-resistant coating draw-in groove 11-1, the corrosion-resistant coating draw-in groove 11-1 are offered on the inwall of the lower end of the sealing hole 11 is in
Tubular, for being connected with corrosion-resistant coating 13, the corrosion-resistant coating 13 includes the anticorrosion sheet material 13-1 and position positioned at bottom
In top and the position anticorrosion Access Division 13-2 corresponding with the corrosion-resistant coating draw-in groove 11-1, the anticorrosion Access Division
13-2's is shaped as with the corrosion-resistant coating draw-in groove 11-1 to the tubular being adapted to；That is, in the installation position of the corrosion-resistant coating 13,
Form the composite sandwich structural of the inwall of sealing hole 11-anticorrosion Access Division 13-2- heat exchanger tubes a walls-wall of internal lining pipe 12.
The heat exchanger tube is spacing to be filled 23 two ends and is socketed on the crossbeam 22 by crossbeam sleeve 231, two of two ends
The heat exchanger tube limiting section for connecting constituted by several heat exchanger tube sleeves 232, the heat exchange are provided between the crossbeam set 231
Pipe limiting section is hinged with the crossbeam sleeve 231.
On the upper perforated plate 1 cooling medium stream is respectively arranged with the sealing of the inlet and flow export of the heat exchanger tube a
Logical portion 14, the cooling medium for converging injection/outflow.
Embodiment 2：With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 5, a kind of liquid-gas formula heat exchanger, the difference with embodiment 1 exists
In：The heat exchanger tube a forms three back bending, two of which back bending via the heat exchanger tube stopping means 23 in the support 2
Positioned at the bottom of the support 2, another back bending is located in the elbow holding part 15 on the upper perforated plate 1, the elbow holding part
15 are arranged between two cooling medium circulation portions 14.
The upper end flush of the upper end of the internal lining pipe 12 and the upper perforated plate 1, the bottom of the internal lining pipe 12
The position of the corrosion-resistant coating 13 is provided with extension 12-2, the extension 12-2 is the taper that internal diameter is gradually reduced downwards
Body.
Embodiment 3：With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a kind of liquid-gas formula heat exchanger, the difference with embodiment 1 exists
In：The one side of the support 2 is additionally provided with cleaning device 3, and the cleaning device 3 includes a longitudinally disposed main detergent line
31st, the branch line detergent line 32 that is extended laterally in the main detergent line 31 and from the branch line detergent line 32
Top set simultaneously extends into the drip washing pipeline 33 inside the support 2, is provided with clean-out opening on the drip washing pipeline 33, and cleaning fluid is from institute
Out exchange heat pipe a is cleaned to state spray in clean-out opening.
Embodiment 4：With reference to Fig. 6, a kind of smoke processing system of energy-conservation, including one with SCR denitration reactor 01-1 phases
With reference to boiler plant 01, hot air inlet 01-2 is provided with the boiler plant 01, on the SCR denitration reactor 01-1
It is provided with high-temperature flue gas outlet 01-3；
Also include a pre-heating device 02, high-temperature flue gas entry 02-1, preheating exhanst gas outlet are provided with the pre-heating device 02
02-2, cool air inlet 02-3 and hot air outlet 02-4, wherein, the high-temperature flue gas entry 02-1 goes out with the high-temperature flue gas
Mouth 01-3 is connected, and the hot air outlet 02-4 is connected with the hot air inlet 01-2；
Also include that a cleaner 03 is electrostatic precipitator, the entrance of the cleaner 03 and the preheating exhanst gas outlet
02-2 is connected；
Also include a liquid-gas formula flue gas cool-down equipment 04 and a flue gas desulfurization device 05, flue gas is from the cleaner 03
After outflow, the shell side cooling of the liquid-gas formula flue gas cool-down equipment 04 is first passed through, then taken off through the flue gas desulfurization device 05
Sulphur, then discharges, the liquid-gas formula flue gas cool-down equipment 04 after the shell side of liquid-gas formula flue gas heating device 06 heats up again
Tube side with the liquid-gas formula flue gas heating device 06 constitutes a loop.
Embodiment 5：With reference to Fig. 7, a kind of smoke processing system of energy-conservation, with embodiment, 4 difference is：It is described
Condensation is provided with the loop that the tube side of liquid-gas formula flue gas cool-down equipment 04 and the liquid-gas formula flue gas heating device 06 is constituted
Water- to-water heat exchanger 08, the cleaner 03 is film dust-remover.
Embodiment 6：With reference to Fig. 8, a kind of smoke processing system of energy-conservation, the difference with embodiment 4 is：The cigarette
Liquid-gas formula flue gas cool-down auxiliary equipment 07 is additionally provided between desulfurization equipment 05 and the liquid-gas formula flue gas heating device 06,
The liquid-gas formula flue gas cool-down auxiliary equipment 07 walks tube side and flue gas is cooled down using river, and coolant is provided with below
Auxiliary holding tank 07-1, the cleaner 03 is sack cleaner.
Embodiment 7：With reference to Fig. 9, a kind of smoke processing system of energy-conservation, the difference with embodiment 6 is：It is described
Condensation is provided with the loop that the tube side of liquid-gas formula flue gas cool-down equipment 04 and the liquid-gas formula flue gas heating device 06 is constituted
Water- to-water heat exchanger 08, the cleaner 03 is the combination of cyclone dust collectors and electrostatic precipitator.
Embodiment 8：With reference to Figure 10, a kind of smoke processing system of energy-conservation, the difference with embodiment 4 is：It is described
Liquid-liquid is provided with the loop that the tube side of liquid-gas formula flue gas cool-down equipment 04 and the liquid-gas formula flue gas heating device 06 is constituted
Heat exchanger is used to heat recycle-water, and the cleaner 03 is spray deduster.
Embodiment 9：With reference to Figure 11, a kind of smoke processing system of energy-conservation, the difference with embodiment 4 is：It is described
The tube side of liquid-gas formula flue gas cool-down equipment 04 constitutes loop, and the loop flows through urban heating system.
Embodiment 10：With reference to Figure 12, a kind of smoke processing system of energy-conservation, the difference with embodiment 9 is：It is described
The tube side of liquid-gas formula flue gas cool-down equipment 04 constitutes loop, and the tube side of liquid-gas heat transmission equipment 09, institute are connected with the loop
The shell side one end for stating liquid-gas heat transmission equipment 09 is connected with the cool air inlet 02-3, and the other end blasts cold air.
Embodiment 11：With reference to Figure 13, a kind of smoke processing system of energy-conservation, including one with SCR denitration reactor 01-1
The boiler plant 01 being combined, is provided with hot air inlet 01-2, the SCR denitration reactor 01-1 on the boiler plant 01
On be provided with high-temperature flue gas outlet 01-3；
Also include a pre-heating device 02, high-temperature flue gas entry 02-1, preheating exhanst gas outlet are provided with the pre-heating device 02
02-2, cool air inlet 02-3 and hot air outlet 02-4, wherein, the high-temperature flue gas entry 02-1 goes out with the high-temperature flue gas
Mouth 01-3 is connected, and the hot air outlet 02-4 is connected with the hot air inlet 01-2；
Also include that a cleaner 03 is electrostatic precipitator, the entrance of the cleaner 03 and the preheating exhanst gas outlet
02-2 is connected；
Also include a liquid-gas formula flue gas cool-down equipment 04 and a flue gas desulfurization device 05, flue gas is from the cleaner 03
After outflow, first passing through the flue gas desulfurization device 05 carries out desulfurization, then by the shell side of the liquid-gas formula flue gas cool-down equipment 04
Discharged after cooling.
Claims (10)
1. a kind of smoke processing system of energy-conservation, it is characterised in that：Including one and SCR denitration reactor（01-1）It is combined
Boiler plant（01）, the boiler plant（01）On be provided with hot air inlet（01-2）, the SCR denitration reactor（01-1）
On be provided with high-temperature flue gas outlet（01-3）；
Also include a pre-heating device（02）, the pre-heating device（02）On be provided with high-temperature flue gas entry（02-1）, preheating cigarette
Gas is exported（02-2）, cool air inlet（02-3）And hot air outlet（02-4）, wherein, the high-temperature flue gas entry（02-1）With
The high-temperature flue gas outlet（01-3）It is connected, the hot air outlet（02-4）With the hot air inlet（01-2）It is connected
It is logical；
Also include a cleaner（03）, the cleaner（03）Entrance and the preheating exhanst gas outlet（02-2）It is connected
It is logical；
Also include a liquid-gas formula flue gas cool-down equipment（04）With a flue gas desulfurization device（05）, flue gas sets from the dedusting
It is standby（03）After outflow, the liquid-gas formula flue gas cool-down equipment is first passed through（04）Shell side cooling, then through the flue gas desulfurization device
（05）Discharged after carrying out desulfurization；
Or, flue gas first passes through the flue gas desulfurization device（05）Desulfurization is carried out, then by the liquid-gas formula flue gas cool-down equipment
（04）Shell side cooling after discharge.
2. the smoke processing system of a kind of energy-conservation according to claim 1, it is characterised in that：Flue gas is from the cleaner
（03）After outflow, the liquid-gas formula flue gas cool-down equipment is first passed through（04）Shell side cooling, then through the flue gas desulfurization device
（05）Desulfurization is carried out, then again by liquid-gas formula flue gas heating device（06）Shell side heat up after discharge, the liquid-gas formula cigarette
Gas cooling system（04）With the liquid-gas formula flue gas heating device（06）Tube side constitute a loop.
3. the smoke processing system of a kind of energy-conservation according to claim 2, it is characterised in that：The flue gas desulfurization device
（05）With the liquid-gas formula flue gas heating device（06）Between be additionally provided with liquid-gas formula flue gas cool-down auxiliary equipment（07）, it is described
Liquid-gas formula flue gas cool-down auxiliary equipment（07）Tube side is walked using natural water source to cool down flue gas, cooling is provided with below
Liquid auxiliary holding tank（07-1）.
4. the smoke processing system of a kind of energy-conservation according to claim 2, it is characterised in that：The liquid-gas formula flue gas drop
Warm equipment（04）With the liquid-gas formula flue gas heating device（06）Tube side constitute loop on be provided with condensation water- to-water heat exchanger
（08）.
5. the smoke processing system of a kind of energy-conservation according to claim 3, it is characterised in that：The liquid-gas formula flue gas drop
Warm equipment（04）With the liquid-gas formula flue gas heating device（06）Tube side constitute loop on be provided with condensation water- to-water heat exchanger
（08）.
6. the smoke processing system of a kind of energy-conservation according to claim 1, it is characterised in that：The flue gas is from the dedusting
Equipment（03）After outflow, the liquid-gas formula flue gas cool-down equipment is first passed through（04）Shell side cooling, then set through the flue gas desulfurization
It is standby（05）Discharged after carrying out desulfurization, the liquid-gas formula flue gas cool-down equipment（04）Tube side constitute loop, the loop flow through need
The part to be exchanged heat or position.
7. the smoke processing system of a kind of energy-conservation according to claim 6, it is characterised in that：The liquid-gas formula flue gas drop
Warm equipment（04）Tube side constitute loop, liquid-gas heat transmission equipment is connected with the loop（09）Tube side, the liquid-gas change
Hot equipment（09）Shell side one end and the cool air inlet（02-3）It is connected, the other end blasts cold air.
8. the smoke processing system of a kind of energy-conservation according to claim 1, it is characterised in that：Flue gas first passes through the flue gas
Desulphurization plant（05）Desulfurization is carried out, then by the liquid-gas formula flue gas cool-down equipment（04）Shell side cooling after discharge, it is described
Liquid-gas formula flue gas cool-down equipment（04）Lower section be provided with valve, the valve lower section is provided with cooling fluid collector（04-1）.
9. the smoke processing system of a kind of energy-conservation according to any bar in claim 1 ~ 8, it is characterised in that：The dedusting
Equipment（03）It is one or more in electrostatic precipitator, spray deduster, film dust-remover, sack cleaner, cyclone dust collectors
Combination.
10. the smoke processing system of a kind of energy-conservation according to any bar in claim 9, it is characterised in that：The dedusting
Equipment（03）Export pipeline on be provided with air-introduced machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611263434.6A CN106693695A (en) | 2016-12-30 | 2016-12-30 | Energy-saving type flue gas treating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611263434.6A CN106693695A (en) | 2016-12-30 | 2016-12-30 | Energy-saving type flue gas treating system |
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| CN106693695A true CN106693695A (en) | 2017-05-24 |
Family
ID=58905669
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|---|---|---|---|
| CN201611263434.6A Pending CN106693695A (en) | 2016-12-30 | 2016-12-30 | Energy-saving type flue gas treating system |
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