CN206176433U - Preheat low nitrogen of humidification and flue gas degree of depth waste heat recovery system - Google Patents
Preheat low nitrogen of humidification and flue gas degree of depth waste heat recovery system Download PDFInfo
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- CN206176433U CN206176433U CN201621111898.0U CN201621111898U CN206176433U CN 206176433 U CN206176433 U CN 206176433U CN 201621111898 U CN201621111898 U CN 201621111898U CN 206176433 U CN206176433 U CN 206176433U
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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
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- 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
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Abstract
The utility model relates to a preheat low nitrogen of humidification and flue gas degree of depth waste heat recovery system, the system is including preheating humidifying device, burner, degree of depth waste heat recovery device, defogging device and recirculation system etc. This openly the system low nitrogen oxide's emission can be fallen through to air and recirculated flue gas's humidification again, reach the quantity that can reduce again recirculated flue gas under the condition of same nitrogen oxide emission, through to air and the preheating of recirculated flue gas again, can increase the water capacity in the gas mixture, because recirculated flue gas's joining makes the interior exhaust gas volumn of furnace increase again for degree of depth waste heat recovery device can absorb more heats, the circulation is accomplished with the cold water that preheats humidifying device to hot water through degree of depth waste heat recovery device, has solved the unable problem of using of low -grade heat to because the vapor of degree of depth waste heat recovery device condensation and the moisture that the water addition equipment that the defogging device was retrieved consumed do not need other makeup water.
Description
Technical field
This disclosure relates to a kind of low nitrogen energy conserving system, specifically, is related to more than a kind of low nitrogen of preheating humidification and flue gas depth
Heat recovery system.
Background technology
Natural gas is increasingly taken seriously as a kind of clean fuel, but the nitrogen oxides produced in its combustion process is
Important pollutant in air, nitrogen oxides not only forms acid rain, can also form haze and photochemical fog, and environment is produced very
Big harm.
Temperature is the principal element for influenceing NO_x formation during combustion of natural gas, by reducing ignition temperature, can
To greatly reduce discharged nitrous oxides.Flue gas recirculation can realize the reduction of ignition temperature, by by the combustion product of flue gas
Be added in combustion zone, reduce ignition temperature, while the flue gas for adding reduces the partial pressure of oxygen, this will weaken oxygen with
The process of nitrogen generation thermal NO x, so as to reduce the generation of NOx.It is same to reduce combustion zone temperature to flame zone water filling
Sample can play a part of to suppress NOx generations, and one is to add vapor to reduce highest flame temperature so that thermal NO is significantly
Decline；Two is in the case of flame peak temperature identical, to add vapor to cause that the concentration of OH groups in flame increases, although
The concentration of OH increases so that thermal NO has increased slightly, but humidification result in the decline of CH base concentration so that HCN and N components
Concentration substantially reduce so that Quick-type NO greatly reduces.Above-mentioned two reason has caused the total discharges of the NO of combustion process
Reduce.Other technologies include fractional combustion (including air classification, fuel staging), lean fuel premixed combustion, flue gas recirculation, nonflame
The modes such as burning, swirl flow combustion.
Low-NO_x combustion technology can bring some problems, such as flue gas recirculation amount to cross conference generation in actual moving process
Combustion instability problem, if running air temperature is too low, can produce condensed water.Use the modes such as water spray so that cigarette
Water capacity increases in gas, increased heat loss due to exhaust gas, reduces boiler efficiency.
Water capacity is general in 15-18% in gas fired-boiler flue gas, the 10- of the latent heat that it contains about natural gas Lower heat value
11%, it is important directions of the fume afterheat using technology development.When flue-gas temperature is less than its dew-point temperature (typically in 55-57
DEG C or so), start to discharge condensation heat in flue gas, thus develop dividing wall type flue gas condenser.But because technique takes
Indirect heat exchange, when the flue gas for closing on Water in Condenser side wall is less than its dew-point temperature, starts to produce condensation.Dividing wall type flue gas is cold
Condenser carries out fume afterheat utilization and is widely used at present using system return as low temperature cold source.Due to dividing wall type condenser
Heat recovery efficiency is relatively low, and researcher develops absorption direct-cooled condenser, and low-temperature circulating water and flue gas are utilized using spray column
Directly contact, the Latent heat of the device absorbable more than 90%, but because circulating water temperature is low, it is impossible to it is used effectively, sends out
Exhibition thus stagnate.
Utility model content
Regarding to the issue above, the disclosure proposes a kind of low nitrogen of preheating humidification and flue gas depth residual neat recovering system, this system
Can be combined as auxiliary equipment and boiler, discharged nitrous oxides can not only be substantially reduced, additionally it is possible to by recovered flue gas
Vapor and its heat, greatly improve boiler efficiency.
One kind preheating low nitrogen of humidification and flue gas depth residual neat recovering system, wherein, the system include preheating humidifying device,
Burner, depth waste-heat recovery device, demister and EGR；Wherein：The preheating humidifying device is using warm
The first gaseous mixture that water will enter in it carries out preheating humidification and obtains the second gaseous mixture and cold water, its gas vent and burner
Gas access be connected, its cooling water outlet is connected by circulating chilled water pipeline with the cold water inlet of depth waste-heat recovery device；Institute
State the gaseous mixture of the flue gas that the first gaseous mixture is sent back to for air and EGR；The burner is by the second mixture combustion
The 3rd gaseous mixture is produced, its gas vent is connected with the gas access of depth waste-heat recovery device；The depth waste heat recovery dress
Put the water condensation in the 3rd gaseous mixture, obtain the 4th gaseous mixture and hot water, the gas access of its gas vent and demister
It is connected, its hot water outlet is connected by hot water circuit pipeline with the hot water inlet of preheating humidifying device；The demister is by
Water condensation in three gaseous mixtures, the flue gas and hot water for being discharged, its gas vent simultaneously with the entrance of extraneous, EGR
It is connected, its hot water outlet is connected with hot water circuit pipeline.
Further, the system also includes providing the supercharging device of flue gas recirculation pressure in whole system, the supercharging
The gas vent of device is connected with the gas access of preheating humidifying device, or the supercharging device is located at the preheating humidification dress
Between the gas vent and the entrance of burner put.
Further, between 30-60 DEG C, water capacity is between 10-15% for the temperature of second mixed gas.
Further, the circulating chilled water pipeline provides pressure by first circulation pump；The hot water circuit pipeline is by second
Circulating pump provides pressure.
Further, the depth waste-heat recovery device is N1, and N1 is the integer more than 1；Wherein：
1st gas access of depth waste-heat recovery device is connected with the gas vent of burner, the 1st depth waste heat
The hot water outlet of retracting device is connected by hot water circuit pipeline with the hot water inlet of preheating humidifying device；
The gas access of i-th depth waste-heat recovery device and the I-1 gas vent phase of depth waste-heat recovery device
Even；The gas vent of i-th depth waste-heat recovery device is connected with the gas access of the I+1 depth waste-heat recovery device；I
The cold water inlet of individual depth waste heat apparatus for recovering is connected with the hot water outlet of the I+1 depth waste-heat recovery device；I-th depth
The hot water outlet for spending waste-heat recovery device is connected with the cold water inlet of the I-1 depth waste-heat recovery device；Wherein, I is integer,
1 ＜ I ＜ N1；
The N1 gas vent of depth waste-heat recovery device is connected with the gas access of demister；More than the N1 depth
The cold water inlet of heat reclamation device is connected by circulating chilled water pipeline with the cooling water outlet of preheating humidifying device.
Further, the demister is N2, and N2 is the integer more than 1；Wherein：
1st gas vent of demister is connected with the gas access of the 2nd demister；
The gas vent of j-th demister is connected with the gas access of the J+1 demister；Wherein, J is integer, 1
＜ J ＜ N2；
The N2 gas vent of demister with the gas access of extraneous, EGR while be connected；Each demisting
The hot water outlet of device is connected with hot water circuit pipeline.
Preferably, the EGR includes circulating fan, and the circulating fan is used to accelerate flue gas to flow in the duct
It is dynamic.
Preferably, the depth waste-heat recovery device is spray column or packed tower.
Preferably, the demister includes screen type, flat.
Preferably, the supercharging device includes blower fan.
Disclosure system has following beneficial effects：
(1) by the humidification to air and flue gas recycled, the discharge of nitrogen oxides can be reduced, reaches same nitrogen oxidation
Thing can reduce the consumption of flue gas recycled in the case of discharging；
(2) by the preheating to air and flue gas recycled, the water capacity in gaseous mixture can be increased；
(3) addition of flue gas recycled causes that the exhaust gas volumn in burner hearth increases so that depth waste-heat recovery device can absorb
More heats；
(4) hot water of depth waste-heat recovery device completes circulation with the cold water of preheating humidifying device, solves low-grade heat
The problem that cannot be used.
(5) moisture of the water ancillary equipment consumption that the water of depth waste-heat recovery device condensation is reclaimed with demister, is not required to
Water is supplemented in addition.
Brief description of the drawings
The low nitrogen of preheating humidification and flue gas depth waste-heat recovery device schematic diagram in Fig. 1 disclosure one embodiment；
In figure：1st, blower fan；2nd, humidifying device is preheated；3rd, combustion head；4th, boiler 5, depth waste-heat recovery device；6th, demisting
Device；7th, first circulation pump；8th, second circulation pump；9th, circulating fan；10th, circulating chilled water pipeline；11st, hot water circuit pipeline；Q1, sky
Gas；The gaseous mixture of q2, low temperature drying hypoxemia；The gaseous mixture of q3, high temperature water capacity hypoxemia high；Flue gas after q4, burning；Q5, height
The flue gas of humidity low temperature；Q6, the flue gas of low temperature drying；Q7, arrange flue gas to air；Q8, flue gas recycled；W1, cold water；
W2, hot water；W3, demister recycle-water；
Multiple depth waste-heat recovery device connection diagrams in Fig. 2 disclosure one embodiment；
In figure：5-1, the first depth waste-heat recovery device；5-2, the second depth waste-heat recovery device；More than 5-3, the 3rd depth
Heat reclamation device；W1, the cold water from preheating humidifying device；W2-1, hot water；W2-2, hot water；W2, go to preheating humidifying device
Hot water；Flue gas after q4, burning；Q5-1, flue gas；Q5-2, flue gas；Q5, the flue gas towards demister；
Multiple demister connection diagrams in Fig. 3 disclosure one embodiment；
In figure：6-1, the first demister；6-2, the second demister；6-3, the 3rd demister；Q5, from its phase
The flue gas of depth waste-heat recovery device even；Q5-1, the flue gas by the first demister；Q5-2, by the second demister
Flue gas；Q6, by the 3rd demister flue gas；W3-1, the first demister recycle-water, the demisters of w3-2 second are reclaimed
Water, the demister recycle-waters of w3-3 the 3rd；11st, hot water circuit pipeline.
Specific embodiment
In one embodiment, a kind of low nitrogen of preheating humidification and flue gas depth residual neat recovering system, the system are disclosed
Including preheating humidifying device, burner, depth waste-heat recovery device, demister and EGR；Wherein：It is described pre-
The first gaseous mixture entered in it is carried out preheating humidification and obtains the second gaseous mixture and cold water by hot humidifying device using hot water, its gas
Body outlet is connected with the gas access of burner, and its cooling water outlet is connected with the cold water inlet of depth waste-heat recovery device；Institute
State the gaseous mixture of the flue gas that the first gaseous mixture is sent back to for air and EGR；The burner is by the second mixture combustion
The 3rd gaseous mixture is produced, its gas vent is connected with the gas access of depth waste-heat recovery device；The depth waste heat recovery dress
Put the water condensation in the 3rd gaseous mixture, obtain the 4th gaseous mixture and hot water, the gas access of its gas vent and demister
It is connected, its hot water outlet is connected with the hot water inlet of preheating humidifying device；The demister is by the water-cooled in the 3rd gaseous mixture
Solidifying, the flue gas and hot water for being discharged, entrance of its gas vent simultaneously with extraneous, EGR are connected, its hot water outlet
It is connected with hot water circuit pipeline.
In this embodiment, preheating humidifying device can reduce nitrogen oxides by the humidification to flue gas recycled
Discharge, can reduce the consumption of flue gas recycled, to air and flue gas recycled in the case of reaching same discharged nitrous oxides
Preheating, the water capacity in gaseous mixture can be increased.EGR loops back partial fume, mixes with air, increases
Exhaust gas volumn in burner so that depth waste-heat recovery device can absorb more heats.And depth waste-heat recovery device
Hot water with preheating humidifying device in cold water complete circulation, solve the problems, such as that low-grade heat cannot be used.Simultaneously as deep
The moisture of the water ancillary equipment consumption that the vapor of degree waste-heat recovery device condensation is reclaimed with demister, it is not necessary to supplement in addition
Water.
In this embodiment, the characteristics of the first gaseous mixture is the mixing of air and flue gas recycled, the gaseous mixture is low
Oxygen concentration, drying.First gaseous mixture enters preheating humidifying device, and heat and mass is carried out using hot water inside preheating humidifying device
Preheating humidification process is completed, the second mixture temperature obtained after preheating reaches 30-60 DEG C, and water capacity reaches 10-15%, has
The characteristics of water capacity low oxygen concentration high.Preferably, the depth waste-heat recovery device is spray column or packed tower so that in flue gas
Water more than 90% is condensed so that flue-gas temperature is reduced to 40-50 DEG C, and the water capacity in flue gas is reduced to less than 2%.It is deep
The cold water that degree waste-heat recovery device is used is to preheat the cold water that humidifying device is produced, the hot water that depth waste-heat recovery device is produced
Into preheating humidifying device.
Second gaseous mixture enters burner hearth by the combustion head of burner, is burnt in burner hearth with natural gas, reaches
Reduce ignition temperature, reduce the purpose of discharged nitrous oxides, natural gas here can also be other combustible gas.It is burned
Flue gas afterwards is the 3rd gaseous mixture, into depth waste-heat recovery device, the water condensation in flue gas is got off by modes such as sprays,
Flue gas is changed into the 4th gaseous mixture of high humility low temperature.4th gaseous mixture is changed into drying the flue gas of low temperature by demister, extremely
This obtains being discharged into the flue gas of ambient atmosphere.Preferably, the demister includes screen type, flat.
The nitrogen oxides that 4th gaseous mixture contains has been substantially reduced, in order to further reduce the discharge of nitrogen oxides, part
The flue gas for drying low temperature enters flue gas recycled device portal, is looped back at air intake through pipeline, mixes with air.It is preferred that
Ground, the EGR includes circulating fan, accelerates flue gas to flow in the duct.Not influence burning, while reducing nitrogen again
The discharge of oxide, it is preferable that send the 5-15% of the dry flue gas after demister back to blower fans and mix with air.
In one embodiment, it is described with the resistance for overcoming equipment to be brought to flue gas in order to keep the pressure of whole system
System also includes providing the supercharging device of flue gas recirculation pressure in whole system, and gas vent and the preheating of the supercharging device increase
The gas access of wet device is connected.At air intake in supercharging device, air is mixed with flue gas recycled, obtains
One gaseous mixture.Preferably, the supercharging device includes blower fan.
System construction drawing including blower fan is as shown in figure 1, in figure：1st, blower fan；2nd, humidifying device is preheated；3rd, combustion head；4、
Boiler 5, depth waste-heat recovery device；6th, demister；7th, first circulation pump；8th, second circulation pump；9th, circulating fan；10th, cold water
Circulating line；11st, hot water circuit pipeline；Q1, air；The gaseous mixture of q2, low temperature drying hypoxemia；Q3, high temperature water capacity hypoxemia high
Gaseous mixture；Flue gas after q4, burning；The flue gas of q5, high humility low temperature；Q6, the flue gas of low temperature drying；Q7, arrange to air
Flue gas；Q8, flue gas recycled；W1, cold water；W2, hot water；W3, demister recycle-water.
In another embodiment, there is supercharging between the gas vent and the entrance of burner of the preheating humidifying device
Device, the supercharging device is used to provide flue gas recirculation pressure in whole system.Under this system architecture, air with recycling
Flue gas mixes at the gas access of preheating humidifying device, obtains the first gaseous mixture.Preferably, the supercharging device includes wind
Machine.
In one embodiment, the circulating chilled water pipeline provides pressure by first circulation pump；The hot water circuit pipeline
Pressure is provided by second circulation pump.The cold water that the preheating humidifying device is produced is filled through first circulation pump into depth waste heat recovery
Put；The hot water that the depth waste-heat recovery device is produced enters preheating humidifying device through second circulation pump.By first circulation pump
With the effect of second circulation pump, effectively facilitate precooling hot water and followed between preheating humidifying device and depth waste-heat recovery device
Ring, solves the problems, such as that low-grade heat cannot be used.
In one embodiment, it is more fully to reclaim the waste heat and vapor in the 3rd gaseous mixture, the depth waste heat is returned
Receiving apparatus are N1, and N1 is the integer more than 1；Wherein：
1st gas access of depth waste-heat recovery device is connected with the gas vent of burner, the 1st depth waste heat
The hot water outlet of retracting device is connected by hot water circuit pipeline with the hot water inlet of preheating humidifying device；
The gas access of i-th depth waste-heat recovery device and the I-1 gas vent phase of depth waste-heat recovery device
Even；The gas vent of i-th depth waste-heat recovery device is connected with the gas access of the I+1 depth waste-heat recovery device；I
The cold water inlet of individual depth waste heat apparatus for recovering is connected with the hot water outlet of the I+1 depth waste-heat recovery device；I-th depth
The hot water outlet for spending waste-heat recovery device is connected with the cold water inlet of the I-1 depth waste-heat recovery device；Wherein, I is integer,
1 ＜ I ＜ N1；
The N1 gas vent of depth waste-heat recovery device is connected with the gas access of demister；More than the N1 depth
The cold water inlet of heat reclamation device is connected by circulating chilled water pipeline with the cooling water outlet of preheating humidifying device.
Fig. 2 illustrates 3 connection figures of depth waste-heat recovery device.In figure：5-1, the first depth waste-heat recovery device；5-
2nd, the second depth waste-heat recovery device；5-3, the 3rd depth waste-heat recovery device；W1, the cold water from preheating humidifying device；w2-
1st, by the 3rd depth waste-heat recovery device hot water；W2-2, by the second depth waste-heat recovery device hot water；W2, go to preheating
The hot water of humidifying device；Flue gas after q4, burning；Q5-1, flue gas；Q5-2, flue gas；Q5, the flue gas towards demister；Its
In, by the hot water temperature of the hot water temperature less than the second depth waste-heat recovery device of the 3rd depth waste-heat recovery device, second
The hot water temperature of depth waste-heat recovery device is less than hot water temperature of the first depth waste-heat recovery device, etc.；And by the 3rd
The flue gas of depth waste-heat recovery device leads to demister, the characteristics of it has high humility low temperature.
In one embodiment, for the flue gas of discharge, and the moisture in recovered flue gas, the demister is further dried
It it is N2, N2 is the integer more than 1；Wherein：
1st gas vent of demister is connected with the gas access of the 2nd demister；
The gas vent of j-th demister is connected with the gas access of the J+1 demister；Wherein, J is integer, 1
＜ J ＜ N2；
The N2 gas vent of demister with the gas access of extraneous, EGR while be connected；Each demisting
The hot water outlet of device is connected with hot water circuit pipeline.
Fig. 3 illustrates 3 connection figures of demister.In figure：6-1, the first demister；6-2, the second demister；
6-3, the 3rd demister；Q5, the flue gas from coupled depth waste-heat recovery device；Q5-1, by the first demisting fill
The flue gas put；Q5-2, the flue gas by the second demister；Q6, by the 3rd demister flue gas；W3-1, the first demisting dress
Put recycle-water, w3-2 the second demister recycle-waters, the demister recycle-waters of w3-3 the 3rd；11st, hot water circuit pipeline.Wherein,
The characteristics of flue gas of the depth waste-heat recovery device being connected with demister has high humility low temperature, by multiple demisters
After treatment, become the flue gas of low temperature low humidity, humidity of the flue gas in the multiple demisters being sequentially connected gradually is reduced, pass through
The flue gas crossed after the treatment of last demister can be discharged in air, and the heat that multiple demisters are reclaimed from flue gas
Water, waste heat humidifying device is flowed to through hot water circuit pipeline, is circulated utilization.
The disclosure is described in detail above, used herein specific case principle of this disclosure and embodiment party
Formula is set forth, and the explanation of above example is only intended to help and understands disclosed method and its core concept；Meanwhile, it is right
In those skilled in the art, according to the thought of the disclosure, will change in specific embodiments and applications, it is comprehensive
Upper described, this specification content should not be construed as limitation of this disclosure.
Claims (10)
- It is 1. a kind of to preheat the low nitrogen of humidification and flue gas depth residual neat recovering system, it is characterised in that：The system includes preheating humidifying device, burner, depth waste-heat recovery device, demister and recycling dress Put；Wherein：The first gaseous mixture entered in it is carried out preheating humidification and obtains the second gaseous mixture by the preheating humidifying device using hot water And cold water, its gas vent is connected with the gas access of burner, and its cooling water outlet is by more than circulating chilled water pipeline and depth The cold water inlet of heat reclamation device is connected；First gaseous mixture is the gaseous mixture of the flue gas that air is sent back to EGR；Second mixture combustion is produced the 3rd gaseous mixture, its gas vent and depth waste-heat recovery device by the burner Gas access is connected；Water condensation in 3rd gaseous mixture is obtained the 4th gaseous mixture and hot water by the depth waste-heat recovery device, and its gas goes out Mouth is connected with the gas access of demister, and its hot water outlet is by hot water circuit pipeline and the hot water inlet for preheating humidifying device It is connected；The demister by the water condensation in the 3rd gaseous mixture, the flue gas and hot water for being discharged, its gas vent simultaneously with The entrance of extraneous, EGR is connected, and its hot water outlet is connected with hot water circuit pipeline.
- 2. system according to claim 1, it is characterised in that：The system also includes providing the supercharging device of flue gas recirculation pressure in whole system；The gas vent of the supercharging device is connected with the gas access of preheating humidifying device, or the supercharging device is located at institute State between the gas vent and the entrance of burner that preheat humidifying device.
- 3. system according to claim 1, it is characterised in that：Between 30-60 DEG C, water capacity is between 10-15% for the temperature of second mixed gas.
- 4. system according to claim 1, it is characterised in that：The circulating chilled water pipeline provides pressure by first circulation pump；The hot water circuit pipeline provides pressure by second circulation pump.
- 5. system according to claim 1, it is characterised in that：The depth waste-heat recovery device is N1, and N1 is the integer more than 1；Wherein：1st gas access of depth waste-heat recovery device is connected with the gas vent of burner, the 1st depth waste heat recovery The hot water outlet of device is connected by hot water circuit pipeline with the hot water inlet of preheating humidifying device；The gas access of i-th depth waste-heat recovery device is connected with the gas vent of the I-1 depth waste-heat recovery device；The The gas vent of I depth waste-heat recovery device is connected with the gas access of the I+1 depth waste-heat recovery device；I-th depth The cold water inlet for spending waste heat apparatus for recovering is connected with the hot water outlet of the I+1 depth waste-heat recovery device；More than i-th depth The hot water outlet of heat reclamation device is connected with the cold water inlet of the I-1 depth waste-heat recovery device；Wherein, I is integer, 1 ＜ I ＜ N1；The N1 gas vent of depth waste-heat recovery device is connected with the gas access of demister；The N1 depth waste heat is returned The cold water inlet of receiving apparatus is connected by circulating chilled water pipeline with the cooling water outlet of preheating humidifying device.
- 6. system according to claim 1, it is characterised in that：The demister is N2, and N2 is the integer more than 1；Wherein：1st gas vent of demister is connected with the gas access of the 2nd demister；The gas vent of j-th demister is connected with the gas access of the J+1 demister；Wherein, J is integer, 1 ＜ J ＜ N2；The N2 gas vent of demister with the gas access of extraneous, EGR while be connected；The hot water outlet of each demister is connected with hot water circuit pipeline.
- 7. system according to claim 1, it is characterised in that：The EGR includes circulating fan, and the circulating fan is used to accelerate flue gas to flow in the duct.
- 8. system according to claim 1, it is characterised in that：The depth waste-heat recovery device is spray column or packed tower；The depth waste-heat recovery device can be condensed the water in flue gas more than 90% so that flue-gas temperature is reduced to 40- 50 DEG C, the water capacity in flue gas is reduced to less than 2%.
- 9. system according to claim 1, it is characterised in that：The demister includes screen type, flat.
- 10. system according to claim 2, it is characterised in that：The supercharging device includes blower fan.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621111898.0U CN206176433U (en) | 2016-10-11 | 2016-10-11 | Preheat low nitrogen of humidification and flue gas degree of depth waste heat recovery system |
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| CN201621111898.0U CN206176433U (en) | 2016-10-11 | 2016-10-11 | Preheat low nitrogen of humidification and flue gas degree of depth waste heat recovery system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106500120A (en) * | 2016-10-11 | 2017-03-15 | 北京市环境保护科学研究院 | The low nitrogen of one kind preheating humidification and flue gas depth residual neat recovering system |
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2016
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106500120A (en) * | 2016-10-11 | 2017-03-15 | 北京市环境保护科学研究院 | The low nitrogen of one kind preheating humidification and flue gas depth residual neat recovering system |
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