CN109519952A - A kind of device and plume removal methods of the removing of boiler chimney plume - Google Patents
A kind of device and plume removal methods of the removing of boiler chimney plume Download PDFInfo
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- CN109519952A CN109519952A CN201811559313.5A CN201811559313A CN109519952A CN 109519952 A CN109519952 A CN 109519952A CN 201811559313 A CN201811559313 A CN 201811559313A CN 109519952 A CN109519952 A CN 109519952A
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- water
- water lotion
- outlet
- gas
- washing
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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
- F23J15/006—Layout of treatment plant
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
-
- 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
- B01D53/14—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 absorption
- B01D53/1456—Removing acid components
- B01D53/1481—Removing sulfur dioxide or sulfur trioxide
-
- 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
- B01D53/14—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 absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- 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
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/04—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
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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
- F23J15/06—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
Abstract
The invention belongs to the devices and plume removal methods of a kind of removing of boiler chimney plume；Including boiler smoke pipeline, boiler smoke pipeline is connected by desulfurizer and water washing device with Wet type electric dust-removing device, the outlet of Wet type electric dust-removing device is connected by pipe-line mixer with chimney, and the inlet port of pipe-line mixer is connected by the tube side of inertia combustion heater with inertia exhaust piping；Water content, the exhaust temperature of reduction flue gas, the water consume of reduction desulphurization system and the plume that can remove smoke for having the advantages that simple structure and reasonable design, system drag overall is small, can be effectively reduced flue gas.
Description
Technical field
The invention belongs to boiler chimney plume removing sulfuldioxide fields, and in particular to a kind of device of boiler chimney plume removing
And plume removal methods.
Background technique
Since in June, 2017, the ground such as Shanghai, Tianjin, Hebei, Shanxi have issued flue gas successively and have taken off white relevant policies；
On June 13rd, 2018, formal provincial standard has been issued in Tianjin --- " fossil-fuel power plant atmospheric pollutant emission standard " DB12/810-
2018, take off to flue gas and white propose clear stipulaties: it is required that summer exhaust gas temperature must not be higher than 48 DEG C, winter exhaust gas temperature must not be high
In 45 DEG C；It is to be noted that flue-gas temperature on-line monitoring position should be as close to corresponding cooling installation exhanst gas outlet；If you need to
Flue gas is reheated, flue gas emission monitoring position should be arranged in front of reheating.Meanwhile coal-burning boiler takes corresponding skill
After art reduces smog discharge temperature, flue gas is reheated using waste heat or other modes.
For increasingly strict environmental requirement, to reach minimum discharge purpose, power plant generally takes following process route: low
Nitrogen burning+SCR denitration+deduster+wet desulphurization device (FGD)+wet electric dust-removing (WESP), this is the master that current power plant takes
Flow Technique route.In actual operation, flue gas is after wet desulphurization+wet electric dust-removing, and smoke temperature is at 50 DEG C or so, chimney for boiler
Mouthful at flue gas since water recovery quickly forms white plume.Exhaust gas temperature and white plume after prior art route processing
Obviously the index request of new standard is not achieved.
Summary of the invention
The object of the invention is that it is total to provide a kind of simple structure and reasonable design, system to solve the above-mentioned problems
Resistance is small, can be effectively reduced the exhaust temperature of flue gas and the water content of flue gas, reduce desulphurization system water consume and can eliminate
The device and plume removal methods of the boiler chimney plume removing of flue gas plume.
The present invention is through the following technical solutions to achieve the above objectives: include boiler smoke pipeline, the Boiler flue pipe
Road is connected by desulfurizer and water washing device with Wet type electric dust-removing device, and the outlet of Wet type electric dust-removing device is mixed by pipeline
Clutch is connected with chimney, and the inlet port of pipe-line mixer passes through the tube side and inertia exhaust piping phase of inertia combustion heater
Even.
Preferably, the desulfurizer includes the enriching section being connected with boiler smoke pipeline, the top of enriching section and absorption
Section is connected；Absorber portion is connected by pipeline with the air inlet of water washing device, the gaseous phase outlet and wet-esp of water washing device
The import of device is connected；Water washing device includes shell, the inside of shell be disposed with from the bottom to top catch tray, gas distribution blast cap,
Packing layer washes spray piping and demister, and the excircle in the middle part of gas distribution blast cap is connected with catch tray, the bottom of blast cap and setting
The air inlet of water washing device on shell is connected, and corresponding shell is arranged at the top of demister in the gaseous phase outlet of water washing device
On；Water lotion outlet is offered on the corresponding shell in catch tray side, water lotion outlet passes through threeway and water lotion circulating slot
The import at top is connected, and the outlet that water lotion recycles trench bottom is sprayed by the tube side and washing of circulating pump and water lotion cooler
Pipeline is connected；The third end of threeway is connected by pipeline with the fluid infusion on absorber portion top；On the shell side of water lotion cooler
It is provided with circulating water intake pipeline and circulating water outlet pipeline.
Preferably, the top of the desulfurizer is equipped with water washing device, and desulfurizer and water washing device are arranged in desulfurization water
It washes in shell；The bottom of desulfurization washing shell is equipped with the enriching section being connected with boiler smoke pipeline, the top of enriching section and absorption
Section is connected, and the top of absorber portion is connected with washing section；The inside of washing section is disposed with catch tray, gas distribution from the bottom to top
Blast cap, packing layer wash spray piping and demister, and the excircle in the middle part of gas distribution blast cap is connected with catch tray, gas distribution blast cap
Bottom is connected with absorber portion, and the gaseous phase outlet setting of washing section corresponding desulfurization at the top of demister is washed on shell；Collection
Water lotion outlet is offered on the corresponding desulfurization washing shell in liquid disk side, water lotion outlet is recycled by threeway and water lotion
The import in groove top portion is connected, and the outlet that water lotion recycles trench bottom passes through the tube side and water washing spray of circulating pump and water lotion cooler
Shower pipe road is connected；The third end of threeway is connected by pipeline with the fluid infusion on absorber portion top；The shell side of water lotion cooler
On be provided with circulating water intake pipeline and circulating water outlet pipeline.The shell side of the inertia combustion heater is equipped with steam inlet
Pipeline and condensate outlet pipeline.
A kind of plume removal methods of the device of boiler chimney plume removing, include the following steps:
Step 1: the flue gas of boiler smoke pipeline enters in desulfurizer, enters absorber portion after concentrated section of concentration and carries out
Desulfurization process；The flue-gas temperature of the boiler smoke pipeline is 100~140 DEG C, SO2500~2000mg/Nm of content3, dust contains
Measure 10~30mg/Nm3；Flue-gas temperature after absorber portion are as follows: 45~60 DEG C, SO20~35mg/Nm of content3, dust content 10
~30mg/Nm3, the water content butt of flue gas are as follows: 64.80~152.45g/Nm3；
Step 2: the flue gas after desulfurization process enters in water washing device, keeps flue gas and the water lotion in water washing device reverse
Enter Wet type electric dust-removing device after contact；Flue-gas temperature after water washing device out are as follows: 45 DEG C, 10~30mg/Nm of dust content3,
The water content butt of flue gas are as follows: 64.80g/Nm3；
Step 3: flue gas in Wet type electric dust-removing device after dedusting enter pipe-line mixer in the inertia exhaust gas after heating
Hybrid Heating is discharged after heating by chimney；Pass through the flue-gas temperature being discharged after Wet type electric dust-removing device are as follows: 45 DEG C, SO2Content
0~35mg/Nm3, 0~10mg/Nm of dust content3；Pass through the mixture temperature after pipe-line mixer are as follows: 60~80 DEG C, gaseous mixture
Water content butt are as follows: 60~80g/Nm3
Step 4: the flue gas in step 2 after desulfurization process enters the bottom of gas distribution blast cap, and flue gas passes through gas distribution blast cap top
Portion is uniformly distributed, and the water lotion counter current contacting in equally distributed flue gas and washing spray piping, the flue gas after washing is by removing
The discharge of the gaseous phase outlet of day with fog and water washing device；Water lotion in water lotion circulating slot enters water lotion cooling by circulating pump
Exchanges heat in the tube side of device with recirculated water, the water lotion after heat exchange enter washing spray piping it is interior contacted with flue gas adverse current it is laggard
Enter in catch tray, and exported and be discharged by water lotion, the water lotion of discharge enters in water lotion circulating slot；The water lotion passes through
Pressure after circulating pump: 0.4~0.6MPa, temperature: 50~60 DEG C；Pass through the washing hydraulic coupling of water lotion cooler: 0.4~
0.6MPa, temperature: 35~45 DEG C, the pressure of the water lotion exported by water lotion: 0~0.4MPa, temperature: 50~60
℃；
Step 5: when absorber portion needs fluid infusion, threeway is passed through by the water lotion of water lotion outlet discharge in step 4
Third end and the fluid infusion on absorber portion top enter in absorber portion；
Step 6: inertia exhaust gas in other processes by inertia exhaust piping enter the tube side of inertia combustion heater with
Steam from steam inlet exchanges heat, and the inertia exhaust gas after heat exchange enters pipe by the inlet port of pipe-line mixer
It is mixed in road mixer with flue gas；The condensate liquid generated after steam heat-exchanging in inertia combustion heater shell side passes through condensate outlet
Pipeline discharge；Inertia exhaust gas in the inertia exhaust piping is CO2, CO in inertia exhaust piping2Temperature are as follows: 20~50 DEG C,
10~50Kpa of pressure；Pass through the CO after inertia combustion heater2Temperature are as follows: 100~140 DEG C, 10~50Kpa of pressure.
The present invention has the water content that simple structure and reasonable design, system drag overall is small, can be effectively reduced flue gas, drop
The exhaust temperature of low flue gas, the water consume for reducing desulphurization system and can remove smoke plume the advantages of.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the structural schematic diagram of water washing device of the present invention.
Fig. 3 is another structural schematic diagram of the invention.
Fig. 4 is the curve graph that wet flue gas water content is saturation state.
Specific embodiment
For a clearer understanding of the technical characteristics, objects and effects of the present invention, this hair of Detailed description of the invention is now compareed
Bright specific embodiment, identical label indicates identical component in the various figures.To make simplified form, in each figure only schematically
Ground indicates part relevant to invention, they do not represent its practical structures as product.
As shown in Figure 1, 2, 3, the present invention is the device and plume removal methods of a kind of boiler chimney plume removing, dress
Setting part includes boiler smoke pipeline 1, and the boiler smoke pipeline 1 passes through desulfurizer and water washing device and wet-esp
Device 2 is connected, and the outlet of Wet type electric dust-removing device 2 is connected by pipe-line mixer 3 with chimney 4, the air inlet of pipe-line mixer 3
End is connected by the tube side of inertia combustion heater 5 with inertia exhaust piping.The desulfurizer includes and boiler smoke pipeline 1
The top of connected enriching section 6, enriching section 6 is connected with absorber portion 7；Absorber portion 7 passes through the air inlet of pipeline and water washing device
It is connected, the gaseous phase outlet of water washing device is connected with the import of Wet type electric dust-removing device 2；Water washing device includes shell 8, shell 8
Inside is disposed with catch tray 9, gas distribution blast cap 10, packing layer 11, washing spray piping 12 and demister 13, cloth from the bottom to top
The excircle at 10 middle part of gas blast cap is connected with catch tray 9, the air inlet of the bottom of blast cap 10 and the water washing device being arranged on shell 8
Mouth is connected, and the gaseous phase outlet setting of water washing device is on the corresponding shell 8 in 13 top of demister；9 side of catch tray is corresponding
Shell 8 on offer water lotion outlet 14, water lotion outlet 14 passes through the import phases at the top of threeway and water lotion circulating slot 15
Even, tube side and washing spray piping 12 that the outlet of 15 bottom of water lotion circulating slot passes through circulating pump 16 and water lotion cooler 17
It is connected；The third end of threeway is connected by pipeline with the fluid infusion 18 on 7 top of absorber portion；On the shell side of water lotion cooler 17
It is provided with circulating water intake pipeline 19 and circulating water outlet pipeline 20.The top of the desulfurizer is equipped with water washing device, desulfurization
Device and water washing device setting are in desulfurization washing shell 21；The bottom that shell 21 is washed in desulfurization is equipped with and boiler smoke pipeline 1
The top of connected enriching section 6, enriching section 6 is connected with absorber portion 7, and the top of absorber portion 7 is connected with washing section；Washing section
Inside be disposed with catch tray 9, gas distribution blast cap 10, packing layer 11, washing spray piping 12 and demister 13 from the bottom to top,
The excircle at 10 middle part of gas distribution blast cap is connected with catch tray 9, and the bottom of gas distribution blast cap 10 is connected with absorber portion 7, washing section
Gaseous phase outlet setting is on the corresponding desulfurization washing shell 21 in 13 top of demister；The corresponding desulfurization water in 9 side of catch tray
It washes on shell 21 and offers water lotion outlet 14, the import phase that water lotion outlet 14 passes through threeway and 15 top of water lotion circulating slot
Even, tube side and washing spray piping 12 that the outlet of 15 bottom of water lotion circulating slot passes through circulating pump 16 and water lotion cooler 17
It is connected；The third end of threeway is connected by pipeline with the fluid infusion 18 on 7 top of absorber portion；On the shell side of water lotion cooler 17
It is provided with circulating water intake pipeline 19 and circulating water outlet pipeline 20.The shell side of the inertia combustion heater 5 is equipped with steam
Inlet pipeline 22 and condensate outlet pipeline 23.
A kind of plume removal methods of the device of boiler chimney plume removing, the plume removal methods include the following steps:
Step 1: the flue gas of boiler smoke pipeline 1 enters in desulfurizer, concentrated section 6 concentration after enter absorber portion 7 into
Row desulfurization process；The flue-gas temperature of the boiler smoke pipeline 1 is 100~140 DEG C, SO2500~2000mg/Nm of content3, dust
10~30mg/Nm of content3；Flue-gas temperature after absorber portion 7 are as follows: 45~60 DEG C, SO20~35mg/Nm of content3, dust contains
Measure 10~30mg/Nm3, the water content butt of flue gas are as follows: 64.80~152.45g/Nm3；
Step 2: the flue gas after desulfurization process enters in water washing device, keeps flue gas and the water lotion in water washing device reverse
Enter Wet type electric dust-removing device 2 after contact；Flue-gas temperature after water washing device out are as follows: 45 DEG C, 10~30mg/Nm of dust content3,
The water content butt of flue gas are as follows: 64.80g/Nm3；
Step 3: flue gas enters useless with the inertia after heating in pipe-line mixer 3 in Wet type electric dust-removing device 2 after dedusting
Gas Hybrid Heating is discharged after heating by chimney 4；Pass through the flue-gas temperature being discharged after Wet type electric dust-removing device 2 are as follows: 45 DEG C, SO2
0~35mg/Nm of content3, 0~10mg/Nm of dust content3；Pass through the mixture temperature after pipe-line mixer 3 are as follows: 60~80 DEG C,
The water content butt of gaseous mixture are as follows: 60~80g/Nm3；
Step 4: the flue gas in step 2 after desulfurization process enters the bottom of gas distribution blast cap 10, and flue gas passes through gas distribution blast cap
10 tops are uniformly distributed, the water lotion counter current contacting in equally distributed flue gas and washing spray piping 12, the flue gas after washing
It is discharged by the gaseous phase outlet of demister 13 and water washing device；Water lotion in water lotion circulating slot 15 by circulating pump 16 into
Enter and exchange heat in the tube side of water lotion cooler 17 with recirculated water, the water lotion after heat exchange enter in washing spray piping 12 and
Enter in catch tray 9 after flue gas adverse current contact, and by 14 discharge of water lotion outlet, the water lotion of discharge enters water lotion circulation
In slot 15；The water lotion passes through the pressure after circulating pump 16: 0.4~0.6MPa, temperature: 50~60 DEG C；By washing liquid cooling
But the washing hydraulic coupling of device 17: 0.4~0.6MPa, temperature: 35~45 DEG C, the pressure of the water lotion by water lotion outlet 14
Power: 0~0.4MPa, temperature: 50~60 DEG C；
Step 5: when absorber portion 7 needs fluid infusion, pass through three by the water lotion of 14 discharge of water lotion outlet in step 4
The fluid infusion 18 on logical 7 top of third end and absorber portion enters in absorber portion 7；
Step 6: the inertia exhaust gas in other processes enters the tube side of inertia combustion heater 5 by inertia exhaust piping
It exchanges heat with the steam from steam inlet 22, the inertia exhaust gas after heat exchange passes through the inlet port of pipe-line mixer 3
It is mixed into pipe-line mixer 3 with flue gas；The condensate liquid generated after steam heat-exchanging in 5 shell side of inertia combustion heater passes through cold
Condensate outlet pipeline 23 is discharged；Inertia exhaust gas in the inertia exhaust piping is CO2, CO in inertia exhaust piping2Temperature
Are as follows: 20~50 DEG C, 10~50Kpa of pressure；Pass through the CO after inertia combustion heater 52Temperature are as follows: 100~140 DEG C, pressure 10
~50Kpa.
As shown in figure 4, the curve in the figure is the curve that flue gas water content is saturation state, the principle of the present invention is to pass through
The processes such as washing and wet-esp make saturation state flue-gas temperature prolong AD condensation after cooling by the A point of original state,
Period carries out dehydration；It is heated when flue-gas temperature reaches D point, flue gas reaches E dotted state along DE, and E point is unsaturation
Spend higher wet flue gas, the wet flue gas of E point discharged, flue gas in chimney 4 with environment contact heat-exchanging, wet flue gas state edge
EC reaches C point, and C point temperature is lower to meet relevant discharge standard, and is unsaturated state wet flue gas, in EC section change procedures with satisfy
It is non-intersecting with moisture curve, therefore plume can be effectively eliminated；So desulfurization, washing and wet-esp work in the present invention
Sequence is other than the function that itself has, additionally it is possible to meet the purpose that flue gas eliminates plume.Flue gas is removed through washing cooling in the present invention
Water content substantially reduces after wet, so that smog discharge temperature is reduced to 48 DEG C or less (winter reaches 45 DEG C or less), disappears significantly
It can make system drag overall≤300Pa except the effect of flue gas plume, and by increasing washing cooling device, make desulfurizing tower water consume
It substantially reduces, does not need to be supplemented desalted water substantially.
In order to more clearly explain the present invention, it is further described now in conjunction with specific embodiment.It is specific real
Under applying for example:
Embodiment one
A kind of device of boiler chimney plume removing, including boiler smoke pipeline 1, the boiler smoke pipeline 1 pass through de-
Sulphur device and water washing device are connected with Wet type electric dust-removing device 2, and the outlet of Wet type electric dust-removing device 2 passes through pipe-line mixer 3
It is connected with chimney 4, the inlet port of pipe-line mixer 3 is connected by the tube side of inertia combustion heater 5 with inertia exhaust piping.
The shell side of the inertia combustion heater 5 is equipped with steam inlet 22 and condensate outlet pipeline 23.
A kind of plume removal methods of the device of boiler chimney plume removing, the plume removal methods include the following steps:
Step 1: the flue gas of boiler smoke pipeline 1 enters in desulfurizer, concentrated section 6 concentration after enter absorber portion 7 into
Row desulfurization process；The flue-gas temperature of the boiler smoke pipeline 1 is 100 DEG C, SO2Content 500mg/Nm3, dust content 10mg/
Nm3；Flue-gas temperature after absorber portion 7 are as follows: 45 DEG C, SO2Content 0mg/Nm3, dust content 10mg/Nm3, flue gas it is aqueous
Measure butt are as follows: 64.80g/Nm3；
Step 2: the flue gas after desulfurization process enters in water washing device, keeps flue gas and the water lotion in water washing device reverse
Enter Wet type electric dust-removing device 2 after contact；Flue-gas temperature after water washing device out are as follows: 45 DEG C, dust content 10mg/Nm3, flue gas
Water content butt are as follows: 64.80g/Nm3；
Step 3: flue gas enters useless with the inertia after heating in pipe-line mixer 3 in Wet type electric dust-removing device 2 after dedusting
Gas Hybrid Heating is discharged after heating by chimney 4；Pass through the flue-gas temperature being discharged after Wet type electric dust-removing device 2 are as follows: 45 DEG C, SO2
Content 0mg/Nm3, dust content 0mg/Nm3；Pass through the mixture temperature after pipe-line mixer 3 are as follows: 60 DEG C, gaseous mixture it is aqueous
Measure butt are as follows: 60g/Nm3；
Step 4: the flue gas in step 2 after desulfurization process enters the bottom of gas distribution blast cap 10, and flue gas passes through gas distribution blast cap
10 tops are uniformly distributed, the water lotion counter current contacting in equally distributed flue gas and washing spray piping 12, the flue gas after washing
It is discharged by the gaseous phase outlet of demister 13 and water washing device；Water lotion in water lotion circulating slot 15 by circulating pump 16 into
Enter and exchange heat in the tube side of water lotion cooler 17 with recirculated water, the water lotion after heat exchange enter in washing spray piping 12 and
Enter in catch tray 9 after flue gas adverse current contact, and by 14 discharge of water lotion outlet, the water lotion of discharge enters water lotion circulation
In slot 15；The water lotion passes through the pressure after circulating pump 16: 0.4MPa, temperature: 50 DEG C；Pass through the water of water lotion cooler 17
Washing lotion pressure: 0.4MPa, temperature: 35 DEG C, the pressure of the water lotion by water lotion outlet 14: 0MPa, temperature: 50 DEG C；
Step 5: when absorber portion 7 needs fluid infusion, pass through three by the water lotion of 14 discharge of water lotion outlet in step 4
The fluid infusion 18 on logical 7 top of third end and absorber portion enters in absorber portion 7；
Step 6: the inertia exhaust gas in other processes enters the tube side of inertia combustion heater 5 by inertia exhaust piping
It exchanges heat with the steam from steam inlet 22, the inertia exhaust gas after heat exchange passes through the inlet port of pipe-line mixer 3
It is mixed into pipe-line mixer 3 with flue gas；The condensate liquid generated after steam heat-exchanging in 5 shell side of inertia combustion heater passes through cold
Condensate outlet pipeline 23 is discharged；Inertia exhaust gas in the inertia exhaust piping is CO2, CO in inertia exhaust piping2Temperature
Are as follows: 20 DEG C, pressure 10Kpa；Pass through the CO after inertia combustion heater 52Temperature are as follows: 100 DEG C, pressure 10Kpa.
Embodiment two
A kind of device of boiler chimney plume removing, including boiler smoke pipeline 1, the boiler smoke pipeline 1 pass through de-
Sulphur device and water washing device are connected with Wet type electric dust-removing device 2, and the outlet of Wet type electric dust-removing device 2 passes through pipe-line mixer 3
It is connected with chimney 4, the inlet port of pipe-line mixer 3 is connected by the tube side of inertia combustion heater 5 with inertia exhaust piping.
The desulfurizer includes the enriching section 6 being connected with boiler smoke pipeline 1, and the top of enriching section 6 is connected with absorber portion 7；It inhales
It receives section 7 to be connected by pipeline with the air inlet of water washing device, the import of the gaseous phase outlet and Wet type electric dust-removing device 2 of water washing device
It is connected；Water washing device includes shell 8, and the inside of shell 8 is disposed with catch tray 9, gas distribution blast cap 10, packing layer from the bottom to top
11, spray piping 12 and demister 13 are washed, the excircle at 10 middle part of gas distribution blast cap is connected with catch tray 9, gas distribution blast cap 10
Bottom is connected with the air inlet for the water washing device being arranged on shell 8, and the gaseous phase outlet setting of water washing device is pushed up in demister 13
On the corresponding shell 8 in portion；Water lotion outlet 14 is offered on the corresponding shell 8 in 9 side of catch tray, water lotion outlet 14 is logical
It crosses threeway to be connected with the import at 15 top of water lotion circulating slot, the outlet of 15 bottom of water lotion circulating slot passes through circulating pump 16 and water
The tube side of washing lotion cooler 17 is connected with washing spray piping 12；The third end of threeway passes through pipeline and 7 top of absorber portion
Fluid infusion 18 is connected；Circulating water intake pipeline 19 and circulating water outlet pipeline 20 are provided on the shell side of water lotion cooler 17.
The shell side of the inertia combustion heater 5 is equipped with steam inlet 22 and condensate outlet pipeline 23.
A kind of plume removal methods of the device of boiler chimney plume removing, the plume removal methods include the following steps:
Step 1: the flue gas of boiler smoke pipeline 1 enters in desulfurizer, concentrated section 6 concentration after enter absorber portion 7 into
Row desulfurization process；The flue-gas temperature of the boiler smoke pipeline 1 is 140 DEG C, SO2Content 2000mg/Nm3, dust content 30mg/
Nm3；Flue-gas temperature after absorber portion 7 are as follows: 60 DEG C, SO2Content 35mg/Nm3, dust content 30mg/Nm3, flue gas it is aqueous
Measure butt are as follows: 152.45g/Nm3；
Step 2: the flue gas after desulfurization process enters in water washing device, keeps flue gas and the water lotion in water washing device reverse
Enter Wet type electric dust-removing device 2 after contact；Flue-gas temperature after water washing device out are as follows: 45 DEG C, dust content 30mg/Nm3, flue gas
Water content butt are as follows: 64.80g/Nm3；
Step 3: flue gas enters useless with the inertia after heating in pipe-line mixer 3 in Wet type electric dust-removing device 2 after dedusting
Gas Hybrid Heating is discharged after heating by chimney 4；Pass through the flue-gas temperature being discharged after Wet type electric dust-removing device 2 are as follows: 45 DEG C, SO2
Content 35mg/Nm3, dust content 10mg/Nm3；Pass through the mixture temperature after pipe-line mixer 3 are as follows: 80 DEG C, gaseous mixture contains
Water butt are as follows: 80g/Nm3；
Step 4: the flue gas in step 2 after desulfurization process enters the bottom of gas distribution blast cap 10, and flue gas passes through gas distribution blast cap
10 tops are uniformly distributed, the water lotion counter current contacting in equally distributed flue gas and washing spray piping 12, the flue gas after washing
It is discharged by the gaseous phase outlet of demister 13 and water washing device；Water lotion in water lotion circulating slot 15 by circulating pump 16 into
Enter and exchange heat in the tube side of water lotion cooler 17 with recirculated water, the water lotion after heat exchange enter in washing spray piping 12 and
Enter in catch tray 9 after flue gas adverse current contact, and by 14 discharge of water lotion outlet, the water lotion of discharge enters water lotion circulation
In slot 15；The water lotion passes through the pressure after circulating pump 16: 0.6MPa, temperature: 60 DEG C；Pass through the water of water lotion cooler 17
Washing lotion pressure: 0.6MPa, temperature: 45 DEG C, the pressure of the water lotion by water lotion outlet 14: 0.4MPa, temperature: 60
℃；
Step 5: when absorber portion 7 needs fluid infusion, pass through three by the water lotion of 14 discharge of water lotion outlet in step 4
The fluid infusion 18 on logical 7 top of third end and absorber portion enters in absorber portion 7；
Step 6: the inertia exhaust gas in other processes enters the tube side of inertia combustion heater 5 by inertia exhaust piping
It exchanges heat with the steam from steam inlet 22, the inertia exhaust gas after heat exchange passes through the inlet port of pipe-line mixer 3
It is mixed into pipe-line mixer 3 with flue gas；The condensate liquid generated after steam heat-exchanging in 5 shell side of inertia combustion heater passes through cold
Condensate outlet pipeline 23 is discharged；Inertia exhaust gas in the inertia exhaust piping is CO2, CO in inertia exhaust piping2Temperature
Are as follows: 50 DEG C, pressure 50Kpa；Pass through the CO after inertia combustion heater 52Temperature are as follows: 140 DEG C, pressure 50Kpa.
Embodiment three
A kind of device of boiler chimney plume removing, including boiler smoke pipeline 1, the boiler smoke pipeline 1 pass through de-
Sulphur device and water washing device are connected with Wet type electric dust-removing device 2, and the outlet of Wet type electric dust-removing device 2 passes through pipe-line mixer 3
It is connected with chimney 4, the inlet port of pipe-line mixer 3 is connected by the tube side of inertia combustion heater 5 with inertia exhaust piping.
The top of the desulfurizer is equipped with water washing device, desulfurizer and water washing device setting in desulfurization washing shell 21；Desulfurization
The bottom of washing shell 21 is equipped with the enriching section 6 being connected with boiler smoke pipeline 1, and the top of enriching section 6 is connected with absorber portion 7
Logical, the top of absorber portion 7 is connected with washing section；The inside of washing section is disposed with catch tray 9, gas distribution blast cap from the bottom to top
10, the excircle of packing layer 11, washing spray piping 12 and demister 13,10 middle part of gas distribution blast cap is connected with catch tray 9, gas distribution
The bottom of blast cap 10 is connected with absorber portion 7, and the gaseous phase outlet setting of washing section is in the corresponding desulfurization water in 13 top of demister
It washes on shell 21；Water lotion outlet 14, water lotion outlet 14 are offered on the corresponding desulfurization washing shell 21 in 9 side of catch tray
It is connected by threeway with the import at 15 top of water lotion circulating slot, the outlet of 15 bottom of water lotion circulating slot passes through 16 He of circulating pump
The tube side of water lotion cooler 17 is connected with washing spray piping 12；The third end of threeway passes through pipeline and 7 top of absorber portion
Fluid infusion 18 be connected；Circulating water intake pipeline 19 and circulating water outlet pipeline are provided on the shell side of water lotion cooler 17
20.The shell side of the inertia combustion heater 5 is equipped with steam inlet 22 and condensate outlet pipeline 23.
A kind of plume removal methods of the device of boiler chimney plume removing, the plume removal methods include the following steps:
Step 1: the flue gas of boiler smoke pipeline 1 enters in desulfurizer, concentrated section 6 concentration after enter absorber portion 7 into
Row desulfurization process；The flue-gas temperature of the boiler smoke pipeline 1 is 120 DEG C, SO2Content 1250mg/Nm3, dust content 20mg/
Nm3；Flue-gas temperature after absorber portion 7 are as follows: 52.5 DEG C, SO2Content 17.5mg/Nm3, dust content 20mg/Nm3, flue gas
Water content butt are as follows: 108.625g/Nm3；
Step 2: the flue gas after desulfurization process enters in water washing device, keeps flue gas and the water lotion in water washing device reverse
Enter Wet type electric dust-removing device 2 after contact；Flue-gas temperature after water washing device out are as follows: 45 DEG C, dust content 20mg/Nm3, flue gas
Water content butt are as follows: 64.80g/Nm3；
Step 3: flue gas enters useless with the inertia after heating in pipe-line mixer 3 in Wet type electric dust-removing device 2 after dedusting
Gas Hybrid Heating is discharged after heating by chimney 4；Pass through the flue-gas temperature being discharged after Wet type electric dust-removing device 2 are as follows: 45 DEG C, SO2
Content 17.5mg/Nm3, dust content 5mg/Nm3；Pass through the mixture temperature after pipe-line mixer 3 are as follows: 70 DEG C, gaseous mixture contains
Water butt are as follows: 70g/Nm3；
Step 4: the flue gas in step 2 after desulfurization process enters the bottom of gas distribution blast cap 10, and flue gas passes through gas distribution blast cap
10 tops are uniformly distributed, the water lotion counter current contacting in equally distributed flue gas and washing spray piping 12, the flue gas after washing
It is discharged by the gaseous phase outlet of demister 13 and water washing device；Water lotion in water lotion circulating slot 15 by circulating pump 16 into
Enter and exchange heat in the tube side of water lotion cooler 17 with recirculated water, the water lotion after heat exchange enter in washing spray piping 12 and
Enter in catch tray 9 after flue gas adverse current contact, and by 14 discharge of water lotion outlet, the water lotion of discharge enters water lotion circulation
In slot 15；The water lotion passes through the pressure after circulating pump 16: 0.5MPa, temperature: 55 DEG C；Pass through the water of water lotion cooler 17
Washing lotion pressure: 0.5MPa, temperature: 40 DEG C, the pressure of the water lotion by water lotion outlet 14: 0.2MPa, temperature: 55
℃；
Step 5: when absorber portion 7 needs fluid infusion, pass through three by the water lotion of 14 discharge of water lotion outlet in step 4
The fluid infusion 18 on logical 7 top of third end and absorber portion enters in absorber portion 7；
Step 6: the inertia exhaust gas in other processes enters the tube side of inertia combustion heater 5 by inertia exhaust piping
It exchanges heat with the steam from steam inlet 22, the inertia exhaust gas after heat exchange passes through the inlet port of pipe-line mixer 3
It is mixed into pipe-line mixer 3 with flue gas；The condensate liquid generated after steam heat-exchanging in 5 shell side of inertia combustion heater passes through cold
Condensate outlet pipeline 23 is discharged；Inertia exhaust gas in the inertia exhaust piping is CO2, CO in inertia exhaust piping2Temperature
Are as follows: 35 DEG C, pressure 30Kpa；Pass through the CO after inertia combustion heater 52Temperature are as follows: 120 DEG C, pressure 30Kpa.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe originals of the invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appending claims and equivalents circle
It is fixed.
Claims (5)
1. a kind of device of boiler chimney plume removing, including boiler smoke pipeline (1), it is characterised in that: the boiler smoke
Pipeline (1) is connected by desulfurizer and water washing device with Wet type electric dust-removing device (2), and Wet type electric dust-removing device (2) goes out
Mouth is connected by pipe-line mixer (3) with chimney (4), and the inlet port of pipe-line mixer (3) passes through inertia combustion heater (5)
Tube side be connected with inertia exhaust piping.
2. a kind of device of boiler chimney plume removing according to claim 1, it is characterised in that: the desulfurizer packet
The enriching section (6) being connected with boiler smoke pipeline (1) is included, the top of enriching section (6) is connected with absorber portion (7)；
Absorber portion (7) is connected by pipeline with the air inlet of water washing device, and the gaseous phase outlet and wet-esp of water washing device fill
The import for setting (2) is connected；
Water washing device includes shell (8), and the inside of shell (8) is disposed with catch tray (9), gas distribution blast cap from the bottom to top
(10), packing layer (11), washing spray piping (12) and demister (13), excircle and catch tray in the middle part of gas distribution blast cap (10)
(9) it is connected, the bottom of blast cap (10) is connected with the air inlet for the water washing device being arranged on shell (8), the gas phase of water washing device
Outlet setting is on the corresponding shell (8) in demister (13) top；
Water lotion outlet (14) is offered on the corresponding shell (8) in catch tray (9) side, water lotion outlet (14) passes through threeway
It is connected with the import at the top of water lotion circulating slot (15), the outlet of water lotion circulating slot (15) bottom passes through circulating pump (16) and water
The tube side of washing lotion cooler (17) is connected with washing spray piping (12)；The third end of threeway passes through pipeline and absorber portion (7)
The fluid infusion (18) on top is connected；Circulating water intake pipeline (19) and recirculated water are provided on the shell side of water lotion cooler (17)
Outlet conduit (20).
3. a kind of device of boiler chimney plume removing according to claim 1, it is characterised in that: the desulfurizer
Top is equipped with water washing device, and desulfurizer and water washing device setting are in desulfurization washing shell (21)；Shell (21) are washed in desulfurization
Bottom be equipped with the enriching section (6) that is connected with boiler smoke pipeline (1), the top of enriching section (6) is connected with absorber portion (7),
The top of absorber portion (7) is connected with washing section；
The inside of washing section is disposed with catch tray (9), gas distribution blast cap (10), packing layer (11), washing spray from the bottom to top
Pipeline (12) and demister (13), the excircle in the middle part of gas distribution blast cap (10) are connected with catch tray (9), the bottom of gas distribution blast cap (10)
Portion is connected with absorber portion (7), and shell is washed in the gaseous phase outlet setting of washing section corresponding desulfurization at the top of demister (13)
(21) on；
Water lotion outlet (14), water lotion outlet are offered on corresponding desulfurization washing shell (21) in catch tray (9) side
(14) it is connected by threeway with the import at the top of water lotion circulating slot (15), the outlet of water lotion circulating slot (15) bottom is by following
The tube side of ring pump (16) and water lotion cooler (17) is connected with washing spray piping (12)；The third end of threeway passes through pipeline
It is connected with the fluid infusion (18) on absorber portion (7) top；Circulating water intake pipeline is provided on the shell side of water lotion cooler (17)
(19) and circulating water outlet pipeline (20).
4. a kind of device of boiler chimney plume removing according to claim 1, it is characterised in that: the inertia exhaust gas adds
The shell side of hot device (5) is equipped with steam inlet (22) and condensate outlet pipeline (23).
5. a kind of plume removal methods of the device of boiler chimney plume removing, feature described in -4 exist according to claim 1
In: the plume removal methods include the following steps:
Step 1: the flue gas of boiler smoke pipeline (1) enters in desulfurizer, enters absorber portion (7) after concentrated section (6) concentration
Carry out desulfurization process；The flue-gas temperature of the boiler smoke pipeline (1) is 100~140 DEG C, SO2500~2000mg/Nm of content3,
10~30mg/Nm of dust content3；Flue-gas temperature after absorber portion (7) are as follows: 45~60 DEG C, SO20~35mg/Nm of content3,
10~30mg/Nm of dust content3, the water content butt of flue gas are as follows: 64.80~152.45g/Nm3；
Step 2: the flue gas after desulfurization process enters in water washing device, contacts flue gas inversely with the water lotion in water washing device
Enter Wet type electric dust-removing device (2) afterwards；Flue-gas temperature after water washing device out are as follows: 45 DEG C, 10~30mg/Nm of dust content3, cigarette
The water content butt of gas are as follows: 64.80g/Nm3；
Step 3: flue gas enters useless with the inertia after heating in pipe-line mixer (3) in Wet type electric dust-removing device (2) after dedusting
Gas Hybrid Heating is discharged after heating by chimney (4)；The flue-gas temperature being discharged afterwards by Wet type electric dust-removing device (2) are as follows: 45
DEG C, SO20~35mg/Nm of content3, 0~10mg/Nm of dust content3；Pass through the mixture temperature after pipe-line mixer (3) are as follows: 60
~80 DEG C, the water content butt of gaseous mixture are as follows: 60~80g/Nm3；
Step 4: the flue gas in step 2 after desulfurization process enters the bottom of gas distribution blast cap (10), and flue gas passes through gas distribution blast cap
(10) top is uniformly distributed, the water lotion counter current contacting in equally distributed flue gas and washing spray piping (12), after washing
Flue gas passes through the discharge of the gaseous phase outlet of demister (13) and water washing device；
Water lotion in water lotion circulating slot (15) entered by circulating pump (16) in the tube side of water lotion cooler (17) with follow
Ring water exchanges heat, the water lotion after heat exchange enters in washing spray piping (12) contacted with flue gas adverse current after into catch tray
(9) in, and by water lotion outlet (14) discharge, the water lotion of discharge enters in water lotion circulating slot (15)；The water lotion
Pass through the pressure after circulating pump (16): 0.4~0.6MPa, temperature: 50~60 DEG C；Pass through the water lotion of water lotion cooler (17)
Pressure: 0.4~0.6MPa, temperature: 35~45 DEG C, the pressure of the water lotion by water lotion outlet (14): 0~
0.4MPa, temperature: 50~60 DEG C；
Step 5: when absorber portion (7) needs fluid infusion, pass through three by the water lotion of water lotion outlet (14) discharge in step 4
The fluid infusion (18) on logical third end and absorber portion (7) top enters in absorber portion (7)；
Step 6: inertia exhaust gas in other processes by inertia exhaust piping enter the tube side of inertia combustion heater (5) with
Steam from steam inlet (22) exchanges heat, and the inertia exhaust gas after heat exchange passes through the air inlet of pipe-line mixer (3)
End enters in pipe-line mixer (3) to be mixed with flue gas；The condensate liquid generated after steam heat-exchanging in inertia combustion heater (5) shell side
It is discharged by condensate outlet pipeline (23)；Inertia exhaust gas in the inertia exhaust piping is CO2, in inertia exhaust piping
CO2Temperature are as follows: 20~50 DEG C, 10~50Kpa of pressure；Pass through the CO after inertia combustion heater (5)2Temperature are as follows: 100~140
DEG C, 10~50Kpa of pressure.
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| CN201811559313.5A CN109519952A (en) | 2018-12-12 | 2018-12-12 | A kind of device and plume removal methods of the removing of boiler chimney plume |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811559313.5A CN109519952A (en) | 2018-12-12 | 2018-12-12 | A kind of device and plume removal methods of the removing of boiler chimney plume |
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Cited By (1)
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Address after: 453731 Henan Xinxiang Economic Development Zone (Xiaoji Town) Applicant after: Henan Xinlianxin Chemical Industry Group Co., Ltd. Address before: 453731 Henan Xinxiang Economic Development Zone Xiaoji Town Henan Xinlianxin Chemical Fertilizer Co., Ltd. Applicant before: Henan XInlianxin Fertiliser Limited Company |