CN208170422U - Gas-liquid-solid coalescence absorbs the flue gas depth cooling device for inhibiting low-temperature corrosion - Google Patents
Gas-liquid-solid coalescence absorbs the flue gas depth cooling device for inhibiting low-temperature corrosion Download PDFInfo
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- CN208170422U CN208170422U CN201820467561.6U CN201820467561U CN208170422U CN 208170422 U CN208170422 U CN 208170422U CN 201820467561 U CN201820467561 U CN 201820467561U CN 208170422 U CN208170422 U CN 208170422U
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- flue gas
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
Abstract
A kind of gas-liquid-solid coalescence absorbs the flue gas depth cooling device of inhibition low-temperature corrosion, including left tube sheet, sagging plate, right tube plate, positioned at smoke-shock side and it is mounted on left tube sheet, sagging plate, abrasionproof light pipe on right tube plate, above abrasionproof light pipe, inside is equipped with recirculated cooling water and is mounted on left tube sheet, sagging plate, the bending-type heat exchange base tube of anti-smoke-shock is used on right tube plate, several drainage notch slope formula impact-resistant abrasion-proof damage H-shaped fins being mounted in bending-type heat exchange base tube, positioned at drawing several H-shaped fins above the wear-resistant H-shaped fin of flowing slope type and being mounted in bending-type heat exchange base tube.It can be widely applied to station boiler, in Industrial Boiler smoke processing system.
Description
Technical field
The flue gas depth cooling device for inhibiting low-temperature corrosion is absorbed the present invention relates to a kind of gas-liquid-solid coalescence, can be widely applied
In station boiler, Industrial Boiler smoke processing system.
Background technique
Coal steam-electric plant smoke is the pollutant and thermoelectricity that strict control is required in world wide to the seriously polluted of environment
The environmental protection technology problem of factory in process of production.Desulfurizing tower exiting flue gas typically saturated wet flue gas contains a large amount of water in flue gas
Steam contains more dissolubility salt, SO3, gel dust, micronic dust in water vapour, is all the main component of haze.If flue gas
It is directly entered chimney discharge, into the lower surrounding air of temperature, since the saturated humidity of surrounding air is relatively low, in flue gas
During temperature reduces, the water vapour in flue gas can condense to form wet plume, cause visual pollution and environmental pollution to atmosphere.
Summary of the invention
Currently, existing spiral finned heat exchanger, has the shortcomings that easy dust stratification, easy to wear, resistance is big, greatly limits
The application places of spiral fin coil, general spiral fin coil are applied to the place that dust burdening is less in air duct and flue gas.
It is absorbed the purpose of the present invention is to provide a kind of gas-liquid-solid coalescence and inhibits low-temperature corrosion, improves smoke inlet side flue gas
Flow field, wear-resistant, heat-transfer effect is good, prevents heated structure from deforming and damages components, gas-liquid-solid coalescence with long service life is inhaled
Receive the flue gas depth cooling device for inhibiting low-temperature corrosion.
In order to achieve the above object, gas-liquid-solid coalescence of the present invention absorbs the flue gas depth cooling device for inhibiting low-temperature corrosion,
Including shell, left tube sheet, sagging plate, right tube plate inside housings is installed, positioned at smoke-shock side and be mounted on left tube sheet,
Abrasionproof light pipe on sagging plate, right tube plate above abrasionproof light pipe, internal equipped with recirculated cooling water and is mounted on left pipe
Plate, sagging plate, the bending-type heat exchange base tube that anti-smoke-shock is used on right tube plate, if being mounted in bending-type heat exchange base tube
A dry drainage notch slope formula impact-resistant abrasion-proof damages a H-shaped fin, positioned at drawing above the wear-resistant H-shaped fin of flowing slope type and be mounted on bending
Several H-shaped fins in formula heat exchange base tube.
Gas-liquid-solid coalescence of the present invention absorbs the flue gas depth cooling device for inhibiting low-temperature corrosion, the drainage notch slope formula
Impact-resistant abrasion-proof damages H-shaped fin, and two single-sheet symmetrics of composition are welded in bending-type heat exchange base tube.
Gas-liquid-solid coalescence of the present invention absorbs the flue gas depth cooling device for inhibiting low-temperature corrosion, the drainage notch slope formula
Impact-resistant abrasion-proof damages H-shaped fin and is evenly arranged 2~6 rows along flow of flue gas direction.
Gas-liquid-solid coalescence of the present invention absorbs the flue gas depth cooling device for inhibiting low-temperature corrosion, the H-shaped fin, group
At two single-sheet symmetrics be welded in bending-type heat exchange base tube.
Gas-liquid-solid coalescence of the present invention absorbs the flue gas depth cooling device for inhibiting low-temperature corrosion, and principle is：Based on flying dust
Neutral and alkali devolatilization SO3/H2SO4Inhibiting the gas-liquid-solid coalescence of low-temperature corrosion to absorb inhibits the flue gas depth of low-temperature corrosion cooling
Technology is the emphasis key technology for realizing coal unit energy-saving and emission-reduction, and technological core is to reduce coal unit exhaust gas temperature
To sulphuric acid dew point temperature hereinafter, being reduced to 90 DEG C from 120 DEG C or more, even lower, depth Mist heat recovering inhibits low temperature
Corrosion improves service life of equipment, realizes energy-saving and emission-reduction.
Gas-liquid-solid coalescence of the present invention absorbs the flue gas depth cooling device for inhibiting low-temperature corrosion, finds SO3/H2SO4Concentration with
Flue gas depth is cooling constantly to reduce phenomenon, discloses flying dust neutral and alkali substance, SO in flue gas depth cooling procedure3/H2SO4Steam and
The gas-liquid-solid three-phase coalescence absorbing and removing SO of drop3/H2SO4Mechanism.Accordingly, on the one hand, gas-liquid-solid coalescence, which absorbs, inhibits low temperature
The flue gas depth cooling device of corrosion is placed in front of electrostatic precipitator, so that flying dust concentration is increased 500 times, is utilized the alkalinity in flying dust
Substance coalescence absorbing and removing SO3/H2SO4, inhibit low-temperature corrosion.It on the other hand, is realization gas-liquid-solid flow field continuous uniform, efficient
Coalescence absorbs, and researches and develops novel heat transfer element.Meanwhile feature complicated for coal unit coal quality, that load is changeable, develop variable working condition
Operation regulation method and device, further suppresses low-temperature corrosion.
Gas-liquid-solid coalescence of the present invention absorbs the flue gas depth cooling device for inhibiting low-temperature corrosion, just absorbs in gas-liquid-solid coalescence
In the realization for inhibiting low-temperature corrosion technology.Gas-liquid-solid is exactly three kinds of gas, liquid, solid states, and coalescence here is really two
A process.Solidifying is physical process, refers to flue gas cooling temperature to drop to sulphuric acid dew point temperature the sulfur-bearing steam hereinafter, in flue gas
It is condensed into the process of drop；And be mechanical process, refer to the polymerization of solid particle；Absorbing is also two processes, and inhaling is also object
Reason process refers to the process of solid particle absorption gas-liquid, and receipts are chemical processes, refer to the alkalinity in system hypothermia economizer
Substance reacts the process to form compound non-aggressive substance with sulfide drop.
Gas-liquid-solid coalescence of the present invention absorbs the flue gas depth cooling device for inhibiting low-temperature corrosion, 2 before smoke inlet side
On~6 rows, setting drainage notch slope formula impact-resistant abrasion-proof damages H-shaped fin, by draining notch slope formula structure, substantially improves flue gas
The flow field for flowing through drainage notch slope formula impact-resistant abrasion-proof damage H-shaped finned tube, changes flue gas flow direction, makes flue gas from drainage slope section stream
The motion profile of dust particles in out-of-date change flue gas forms certain axial speed when dust in flue gas is close to heat exchange base tube
Degree reduces the direct collision of dust particles heat exchanging base tube wall surface in flue gas, reduces flue gas flow rate, reduces and exchanges heat to bending-type
The cigarette gas shock of base tube, wear-resistant, long service life.
Gas-liquid-solid coalescence of the present invention absorbs the flue gas depth cooling device for inhibiting low-temperature corrosion, directly impacts side in flue gas and sets
It is very little to set influence of the drainage slope section to extended surface, retains the high advantage of H-type finned tube heat exchange efficiency.
Gas-liquid-solid coalescence of the present invention absorbs the flue gas depth cooling device for inhibiting low-temperature corrosion, and the H-type fin has
Excellent anti-wear property, the excellent advantage small from deashing function, flue gas resistance, as heat exchange element, due to its manufacturing process
Simply, the outer heat exchange area of bending-type heat exchange base tube can be increased, therefore, augmentation of heat transfer, heat-transfer effect is good.
Gas-liquid-solid coalescence of the present invention absorbs the flue gas depth cooling device for inhibiting low-temperature corrosion, the bending-type heat exchange base
Pipe, when expanded by heating can automatic synchronization stretcher strain, prevent heated structure from deforming and damaging components, long service life.
In conclusion a kind of wear-resistant H-type finned tube of the present invention, improves smoke inlet side flue gas flow field, wear-resistant, heat transfer
Effect is good, prevents heated structure from deforming and damaging components, long service life.
Detailed description of the invention
The present invention is described further with reference to the accompanying drawings and embodiments.
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is A-A cross-sectional view of the invention；
Fig. 3 is B-B cross-sectional view of the invention.
Specific embodiment
In FIG. 1 to FIG. 3, gas-liquid-solid coalescence of the present invention absorbs the flue gas depth cooling device for inhibiting low-temperature corrosion, including
Shell 1 installs left tube sheet 2, sagging plate 3, right tube plate 4 inside housings, positioned at smoke-shock side and be mounted on left tube sheet,
Abrasionproof light pipe 5 on sagging plate, right tube plate above abrasionproof light pipe, internal equipped with recirculated cooling water and is mounted on left pipe
Plate, sagging plate, the bending-type heat exchange base tube 6 that anti-smoke-shock is used on right tube plate, are mounted in bending-type heat exchange base tube
Several drainage notch slope formula impact-resistant abrasion-proofs damage H-shaped fins 7, positioned at drawing above the wear-resistant H-shaped fin of flowing slope type and be mounted on
Several H-shaped fins 8 in bending-type heat exchange base tube.
Gas-liquid-solid coalescence of the present invention absorbs the flue gas depth cooling device for inhibiting low-temperature corrosion, the drainage notch slope formula
Impact-resistant abrasion-proof damages H-shaped fin, and two single-sheet symmetrics of composition are welded in bending-type heat exchange base tube.
Gas-liquid-solid coalescence of the present invention absorbs the flue gas depth cooling device for inhibiting low-temperature corrosion, the drainage notch slope formula
Impact-resistant abrasion-proof damages H-shaped fin and is evenly arranged 2~6 rows along flow of flue gas direction.
Gas-liquid-solid coalescence of the present invention absorbs the flue gas depth cooling device for inhibiting low-temperature corrosion, the H-shaped fin, group
At two single-sheet symmetrics be welded in bending-type heat exchange base tube.
In addition, in Fig. 1, water inlet a, water outlet b, flow of flue gas direction c.
Claims (4)
1. a kind of gas-liquid-solid coalescence absorbs the flue gas depth cooling device for inhibiting low-temperature corrosion, including shell, it is mounted in shell
Left tube sheet, sagging plate, the right tube plate in portion positioned at smoke-shock side and are mounted on left tube sheet, sagging plate, anti-on right tube plate
Polishing pipe positioned at abrasionproof light pipe above, internal be equipped with recirculated cooling water and be mounted on left tube sheet, sagging plate, uses on right tube plate
In the bending-type heat exchange base tube of anti-smoke-shock, several being mounted in bending-type heat exchange base tube drain the formula shock resistances of notch slope
Wear-resistant H-shaped fin, positioned at drawing several H above the wear-resistant H-shaped fin of flowing slope type and being mounted in bending-type heat exchange base tube
Shape fin.
2. gas-liquid-solid coalescence according to claim 1 absorbs the flue gas depth cooling device for inhibiting low-temperature corrosion, feature
It is, the drainage notch slope formula impact-resistant abrasion-proof damages H-shaped fin, and two single-sheet symmetrics of composition are welded in bending-type heat exchange
On base tube.
3. gas-liquid-solid coalescence according to claim 1 absorbs the flue gas depth cooling device for inhibiting low-temperature corrosion, feature
It is, the drainage notch slope formula impact-resistant abrasion-proof damage H-shaped fin is evenly arranged 2~6 rows along flow of flue gas direction.
4. gas-liquid-solid coalescence according to claim 1 absorbs the flue gas depth cooling device for inhibiting low-temperature corrosion, feature
It is, the H-shaped fin, two single-sheet symmetrics of composition are welded in bending-type heat exchange base tube.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820467561.6U CN208170422U (en) | 2018-03-30 | 2018-03-30 | Gas-liquid-solid coalescence absorbs the flue gas depth cooling device for inhibiting low-temperature corrosion |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820467561.6U CN208170422U (en) | 2018-03-30 | 2018-03-30 | Gas-liquid-solid coalescence absorbs the flue gas depth cooling device for inhibiting low-temperature corrosion |
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| CN208170422U true CN208170422U (en) | 2018-11-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413428A (en) * | 2018-03-30 | 2018-08-17 | 青岛达能环保设备股份有限公司 | Gas-liquid-solid coalescence absorbs the flue gas deep cooler for inhibiting low-temperature corrosion |
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2018
- 2018-03-30 CN CN201820467561.6U patent/CN208170422U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413428A (en) * | 2018-03-30 | 2018-08-17 | 青岛达能环保设备股份有限公司 | Gas-liquid-solid coalescence absorbs the flue gas deep cooler for inhibiting low-temperature corrosion |
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