CN205913972U - System for carbon dioxide in absorption coal fired power plant flue gas - Google Patents
System for carbon dioxide in absorption coal fired power plant flue gas Download PDFInfo
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- CN205913972U CN205913972U CN201620648946.3U CN201620648946U CN205913972U CN 205913972 U CN205913972 U CN 205913972U CN 201620648946 U CN201620648946 U CN 201620648946U CN 205913972 U CN205913972 U CN 205913972U
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- flue gas
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Abstract
The application discloses system for carbon dioxide in absorption coal fired power plant flue gas includes: first flue gas branch road and second flue gas branch road, first flue gas is provided with first heat exchanger, booster fan on the road, utilize concentration to be 25% to 35% the sodium carbonate solution carbon dioxide absorption's in to the flue gas absorption tower, vacuum pump, cyclone, decomposition tower, centrifugal pump, second flue gas branch road is connected to and is located flue gas pipeline's in the decomposition tower inner chamber entry for utilize the flue gas to lieing in the sodium bicarbonate crystal of decomposition tower inner chamber adds the thermolysis, decomposition tower flue gas pipeline's exit linkage extremely first flue gas branch road, decomposition tower's inner chamber still is connected to the compressor, cyclone with the centrifugal pump still is connected to the second heat exchanger jointly, the second heat exchanger still is connected to the absorption tower. The carbon dioxide of this system in can the active absorption flue gas can realize thermal effective utilization again, reduces the energy consumption, practices thrift manufacturing cost.
Description
Technical field
This utility model is related to coal-fired power generator set field, more particularly, it relates to a kind of absorb in coal-fired plant flue gas
The system of carbon dioxide.
Background technology
Warming with global climate, is caused the common concern of international various countries by the environmental problem that greenhouse effect causes.
In order to reduce the discharge of carbon dioxide isothermal chamber gas, reduce the adverse effect brought to human society, international community adopts one after another
Take measure, control the discharge of greenhouse gases, jointly tackle climate change.
In power industry, coal-burning power plant is the main source of GHG carbon dioxide, therefore, effective control coal-burning power plant
CO2 emission has great significance.Coal-burning power plant's collecting carbonic anhydride can be divided mainly into pre-combustion capture, burning after catch
Collection and oxygen-enriched combusting, wherein post-combustion capture are mainly chemical absorbent trapping, just therefore find the capture method of economical and efficient
Necessary.
Utility model content
For solve above-mentioned technical problem, this utility model provide a kind of absorb coal-fired plant flue gas in carbon dioxide be
System, can effectively absorb the carbon dioxide in flue gas, enable the effectively utilizes of heat, reducing energy consumption again, save production cost.
The system absorbing carbon dioxide in coal-fired plant flue gas that this utility model provides, comprising:
It is connected to the first flue gas branch road after power plant desulfurization device and the second flue gas branch road, on described first flue gas branch road
Be disposed with the First Heat Exchanger to flue gas cool-down, to described flue gas supercharging booster fan, using concentration be 25% to
Absorption tower that 35% sodium carbonate liquor is absorbed to the carbon dioxide in described flue gas, from described absorption tower extraction
The vacuum pump of sodium bicarbonate crystal that generates, to described sodium bicarbonate crystal and the sodium carbonate liquor that is wherein mixed with carry out detached
Cyclone separator, described sodium bicarbonate crystal is carried out with the decomposition tower of heat resolve, by the solution separating from described decomposition tower
Go out the centrifugal pump of sodium carbonate liquor；
Described second flue gas branch road connects to the entrance of the flue in described decomposition tower inner chamber, for utilizing cigarette
The sodium bicarbonate crystal that gas is pointed to described decomposition tower inner chamber carries out heat resolve；
The outlet of the described flue of described decomposition tower connects to described first flue gas branch road, the inner chamber of described decomposition tower
Connect to for compressing carbon dioxide to the compressor of liquid also by exsiccator；
Described cyclone separator and described centrifugal pump are also commonly connected to the second heat exchanger, for by the sodium carbonate isolated
Solution transmits to described second heat exchanger；
Described second heat exchanger is additionally coupled to described absorption tower, for by cooling after described sodium carbonate liquor transmit to
Absorbing carbon dioxide in described absorption tower.
Preferably, in the system of carbon dioxide in above-mentioned absorption coal-fired plant flue gas, the bottom setting on described absorption tower
There is homogenizing plate.
Preferably, in the system of carbon dioxide in above-mentioned absorption coal-fired plant flue gas, the top setting on described absorption tower
There is the sodium carbonate liquor shower nozzle being sprayed along downward multiple directions.
Preferably, the cigarette in the system of carbon dioxide in above-mentioned absorption coal-fired plant flue gas, in described decomposition tower inner chamber
Feed channel is spiral flue.
Preferably, in the system of carbon dioxide in above-mentioned absorption coal-fired plant flue gas, described First Heat Exchanger is also connected with
There is the first temperature sensor, described second heat exchanger is also associated with second temperature sensor.
Preferably, in the system of carbon dioxide in above-mentioned absorption coal-fired plant flue gas, the top on described absorption tower also sets
It is equipped with net gas outlet.
Preferably, in the system of carbon dioxide in above-mentioned absorption coal-fired plant flue gas, described centrifugal pump is provided with and institute
State decomposition tower connection for the pipeline being back to the sodium bicarbonate crystal isolated in described decomposition tower.
From technique scheme as can be seen that one kind provided by the utility model absorbs titanium dioxide coal-fired plant flue gas
The system of carbon, due to including being connected to the first flue gas branch road and the second flue gas branch road after power plant desulfurization device, described first
First Heat Exchanger to flue gas cool-down, the booster fan to the supercharging of described flue gas are disposed with flue gas branch road, utilize concentration
Absorption tower that sodium carbonate liquor for 25% to 35% is absorbed to the carbon dioxide in described flue gas, from described absorption tower
The vacuum pump of sodium bicarbonate crystal that extraction generates, to described sodium bicarbonate crystal and the sodium carbonate liquor that is wherein mixed with enters
Row detached cyclone separator, described sodium bicarbonate crystal is carried out with the decomposition tower of heat resolve, by from described decomposition tower
Solution separating goes out the centrifugal pump of sodium carbonate liquor；Described second flue gas branch road connects to the flue gas in described decomposition tower inner chamber
The entrance of pipeline, the sodium bicarbonate crystal for being pointed to described decomposition tower inner chamber using flue gas carries out heat resolve；Described point
The outlet of the described flue of Xie Ta connects to described first flue gas branch road, and the inner chamber of described decomposition tower is also by exsiccator even
It is connected to for compressing carbon dioxide to the compressor of liquid；Described cyclone separator and described centrifugal pump are also commonly connected to second
Heat exchanger, for transmitting the sodium carbonate liquor isolated to described second heat exchanger；Described second heat exchanger is additionally coupled to institute
State absorption tower, for transmitting the described sodium carbonate liquor after cooling to absorbing carbon dioxide in described absorption tower, therefore both
The carbon dioxide in flue gas can effectively be absorbed, enable the effectively utilizes of heat, reducing energy consumption again, save production cost.
Brief description
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or in description of the prior art the accompanying drawing of required use be briefly described it should be apparent that, drawings in the following description are only
It is embodiment of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to the accompanying drawing providing.
The signal of the system of carbon dioxide in the first absorption coal-fired plant flue gas that Fig. 1 provides for the embodiment of the present application
Figure.
Specific embodiment
Core concept of the present utility model is to provide a kind of system absorbing carbon dioxide in coal-fired plant flue gas, can
Effectively absorb the carbon dioxide in flue gas, enable the effectively utilizes of heat, reducing energy consumption again, save production cost.
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely description is it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of making creative work
The every other embodiment being obtained, broadly falls into the scope of this utility model protection.
The embodiment of the present application provide the first absorb the system of carbon dioxide in coal-fired plant flue gas as shown in figure 1, Fig. 1
The first providing for the embodiment of the present application absorbs the schematic diagram of the system of carbon dioxide in coal-fired plant flue gas.This system bag
Include:
It is connected to the first flue gas branch road 1 after power plant desulfurization device and the second flue gas branch road 2, wherein, described desulfurization dress
Put equipped with flue gas smoke re-heater (ggh), for improving flue gas after desulfurization temperature extremely higher than 80 DEG C, described first flue gas branch road
Be disposed with 1 the First Heat Exchanger 3 to flue gas cool-down, after heat exchanger heat exchange flue-gas temperature be 40 DEG C to 50 DEG C, to institute
State flue gas supercharging booster fan 4, intensified blower fan 4 supercharging after enter absorption tower 5 flue gas pressures be 0.25～0.35mpa,
The absorption tower 5 that carbon dioxide in described flue gas absorbed using the sodium carbonate liquor that concentration is 25% to 35%, wherein
The temperature of sodium carbonate liquor is 40 DEG C to 50 DEG C, the vacuum of the sodium bicarbonate crystal that extraction generates from described absorption tower 5
Pump 6, to described sodium bicarbonate crystal and the sodium carbonate liquor that is wherein mixed with carries out detached cyclone separator 7, to described carbonic acid
Hydrogen sodium crystal carries out the decomposition tower 8 of heat resolve, the solution separating from described decomposition tower 8 goes out the centrifugal pump of sodium carbonate liquor
9；
Described second flue gas branch road 2 connects to the entrance of the flue in described decomposition tower 8 inner chamber, for utilizing
The sodium bicarbonate crystal that flue gas is pointed to described decomposition tower 8 inner chamber carries out heat resolve；
The outlet of the described flue of described decomposition tower 8 connects to described first flue gas branch road 1, described decomposition tower 8
Inner chamber connects to for compressing carbon dioxide to the compressor 11 of liquid also by exsiccator 10；
Described cyclone separator 7 and described centrifugal pump 9 are also commonly connected to the second heat exchanger 12, for by the carbon isolated
Acid sodium solution transmits to described second heat exchanger 12；
Described second heat exchanger 12 is additionally coupled to described absorption tower 5, for passing the described sodium carbonate liquor after cooling
Transport to absorbing carbon dioxide in described absorption tower 5.
Said system workflow is as follows: the flue gas in the first flue gas branch road is after First Heat Exchanger 3 cooling, intensified
Blower fan 4 pressurizes from bottom entrance absorption tower 5, and the concentration under being sprayed from above absorbs for 25% to 35% sodium carbonate liquor, generates
Sodium bicarbonate crystal by cyclone separator 7 separate after enter decomposition tower 8, divided by the flue gas from the second flue gas branch road 2
Solution, the sodium carbonate liquor after decomposition enters absorption tower 5 after the second heat exchanger 12 cooling and continues absorbing carbon dioxide, and flue gas is then
Flow back to the first flue gas branch road 1, the carbon dioxide decompositing is dried and is compressed into liquid, be used for sealing up for safekeeping or industrial use.Due to
Using ethanolamine as absorbent in prior art, and this ethanolamine is easily degraded by dioxygen oxidation in flue gas, therefore the application
The system that embodiment provides adopts dense sodium carbonate liquor absorbing carbon dioxide, is not only avoided that weak solution is decomposing when institute's calorific requirement
Excessive problem, and the absorption to carbon dioxide can be improved, simultaneously using the labile spy of sodium bicarbonate crystal generating
Property, directly heated using the flue gas in the second flue gas branch road 2, this avoids the need for extra supplemental heat source, and cooling water system
Efficient recovery flue gas heat, has reached the comprehensive utilization of energy.
From technique scheme as can be seen that one kind that the embodiment of the present application is provided absorbs dioxy coal-fired plant flue gas
Change the system of carbon, due to including being connected to the first flue gas branch road and the second flue gas branch road after power plant desulfurization device, described the
Be disposed with one flue gas branch road the First Heat Exchanger to flue gas cool-down, the booster fan to the supercharging of described flue gas, using dense
Spend the absorption tower that the sodium carbonate liquor for 25% to 35% absorbed to the carbon dioxide in described flue gas, from described absorption tower
The vacuum pump of sodium bicarbonate crystal that middle extraction generates, to described sodium bicarbonate crystal and the sodium carbonate liquor that is wherein mixed with
Carry out detached cyclone separator, described sodium bicarbonate crystal is carried out heat resolve decomposition tower, will be from described decomposition tower
Solution separating go out the centrifugal pump of sodium carbonate liquor；Described second flue gas branch road connects to the cigarette in described decomposition tower inner chamber
The entrance of feed channel, the sodium bicarbonate crystal for being pointed to described decomposition tower inner chamber using flue gas carries out heat resolve；Described
The outlet of the described flue of decomposition tower connects to described first flue gas branch road, and the inner chamber of described decomposition tower is also by exsiccator
Connect to for compressing carbon dioxide to the compressor of liquid；Described cyclone separator and described centrifugal pump are also commonly connected to
Two heat exchangers, for transmitting the sodium carbonate liquor isolated to described second heat exchanger；Described second heat exchanger is additionally coupled to
Described absorption tower, for transmitting the described sodium carbonate liquor after cooling to absorbing carbon dioxide in described absorption tower, therefore
The carbon dioxide in flue gas can effectively be absorbed, enable the effectively utilizes of heat, reducing energy consumption again, save production cost.
The second that the embodiment of the present application provides absorbs the system of carbon dioxide in coal-fired plant flue gas, is above-mentioned first
On the basis of kind absorbing the system of carbon dioxide in coal-fired plant flue gas, also include following technical characteristic:
The bottom on described absorption tower is provided with homogenizing plate, and when this homogenizing plate makes above flue gas flow direction, ratio is more uniform, favorably
In being fully contacted with dense sodium carbonate liquor and absorbing, thus improving absorbance, the disposal ability of strengthening system.
In the third absorption coal-fired plant flue gas that the embodiment of the present application provides, the system of carbon dioxide, is above-mentioned second
On the basis of kind absorbing the system of carbon dioxide in coal-fired plant flue gas, also include following technical characteristic:
The top on described absorption tower is provided with the sodium carbonate liquor shower nozzle being sprayed along downward multiple directions, such energy
Make sodium carbonate liquor more fully with smoke contacts, strengthen absorption efficiency.
In the 4th kind of absorption coal-fired plant flue gas that the embodiment of the present application provides, the system of carbon dioxide, is above-mentioned first
On the basis of kind absorbing the system of carbon dioxide in coal-fired plant flue gas, also include following technical characteristic:
Flue in described decomposition tower inner chamber is spiral flue, and this spiral flue can increase
Stroke in decomposition tower inner chamber for the flue gas such that it is able to the sodium bicarbonate crystal that is conducted to more heats in inner chamber, to promote
Enter sodium bicarbonate crystal decomposes, and helical form itself also can make flue gas form turbulent flow, strengthens heat transfer effect.
In the 5th kind of absorption coal-fired plant flue gas that the embodiment of the present application provides, the system of carbon dioxide, is above-mentioned first
On the basis of planting to the system of carbon dioxide in the 4th kind of absorption coal-fired plant flue gas any one, also include following technology special
Levy:
Described First Heat Exchanger is also associated with the first temperature sensor, and described second heat exchanger is also associated with second temperature and passes
Sensor.
First temperature sensor is used for surveying the temperature of flue gas, and second temperature sensor is used for the temperature of carbon determination acid sodium solution,
When needing temperature is adjusted, just control cigarette temperature by controlling recirculated water flow velocity, so temperature can be carried out more smart
True control.
In the 6th kind of absorption coal-fired plant flue gas that the embodiment of the present application provides, the system of carbon dioxide, is above-mentioned first
On the basis of kind absorbing the system of carbon dioxide in coal-fired plant flue gas, also include following technical characteristic:
The top on described absorption tower is additionally provided with net gas outlet.In this case, the clean gas obtaining after process
Export from described net gas and flow out it is ensured that not polluting the environment.
In the 7th kind of absorption coal-fired plant flue gas that the embodiment of the present application provides, the system of carbon dioxide, is above-mentioned first
On the basis of kind absorbing the system of carbon dioxide in coal-fired plant flue gas, also include following technical characteristic:
Described centrifugal pump be provided be connected with described decomposition tower for the sodium bicarbonate crystal isolated is back to institute
State the pipeline in decomposition tower.The sodium bicarbonate crystal separated in centrifugal pump is sent back in decomposition tower, continues to decompose, by residual
Sodium bicarbonate crystal continues to resolve into sodium carbonate and realizes resource recycling.
In sum, each embodiment of the present utility model is absorbed to carbon dioxide using dense sodium carbonate liquor, plus
The big dissolubility of carbon dioxide, it is to avoid using the oxidative degradation caused by ethanolamine, it also avoid simultaneously weak solution point
The excessive problem of heat, very economical and effective during solution；The heat decomposing sodium bicarbonate crystal is derived from flue gas it is not necessary to supplement
Extra heat source, and cooling water system and efficient recovery heat, the heat of recovery can be used to resident's heating, has reached energy
Effectively utilizes；Whole system enables to recycle, simple and practical.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or new using this practicality
Type.Multiple modifications to these embodiments will be apparent from for those skilled in the art, is determined herein
The General Principle of justice can be realized in the case of without departing from spirit or scope of the present utility model in other embodiments.Cause
This, this utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The wide scope consistent with features of novelty.
Claims (7)
1. a kind of system absorbing carbon dioxide in coal-fired plant flue gas is it is characterised in that include:
It is connected to the first flue gas branch road after power plant desulfurization device and the second flue gas branch road, on described first flue gas branch road successively
It is provided with the First Heat Exchanger to flue gas cool-down, the booster fan to the supercharging of described flue gas, be 25% to 35% using concentration
Absorption tower that sodium carbonate liquor is absorbed to the carbon dioxide in described flue gas, from described absorption tower, extraction generates
The vacuum pump of sodium bicarbonate crystal, to described sodium bicarbonate crystal and the sodium carbonate liquor that is wherein mixed with carries out detached whirlwind and divides
Carry out the decomposition tower of heat resolve from device, to described sodium bicarbonate crystal, the solution separating from described decomposition tower is gone out carbonic acid
The centrifugal pump of sodium solution；
Described second flue gas branch road connects to the entrance of the flue in described decomposition tower inner chamber, for using flue gas pair
Sodium bicarbonate crystal positioned at described decomposition tower inner chamber carries out heat resolve；
The outlet of the described flue of described decomposition tower connects to described first flue gas branch road, and the inner chamber of described decomposition tower is also logical
Cross exsiccator to connect to for compressing carbon dioxide to the compressor of liquid；
Described cyclone separator and described centrifugal pump are also commonly connected to the second heat exchanger, for by the sodium carbonate liquor isolated
Transmit to described second heat exchanger；
Described second heat exchanger is additionally coupled to described absorption tower, for transmitting the described sodium carbonate liquor after cooling to described
Absorbing carbon dioxide in absorption tower.
2. the system absorbing carbon dioxide in coal-fired plant flue gas according to claim 1 is it is characterised in that described absorption
The bottom of tower is provided with homogenizing plate.
3. the system absorbing carbon dioxide in coal-fired plant flue gas according to claim 2 is it is characterised in that described absorption
The top of tower is provided with the sodium carbonate liquor shower nozzle being sprayed along downward multiple directions.
4. the system absorbing carbon dioxide in coal-fired plant flue gas according to claim 1 is it is characterised in that described decomposition
Flue in tower inner chamber is spiral flue.
5. according to any one of claim 1-4 absorb coal-fired plant flue gas in carbon dioxide system it is characterised in that
Described First Heat Exchanger is also associated with the first temperature sensor, and described second heat exchanger is also associated with second temperature sensor.
6. the system absorbing carbon dioxide in coal-fired plant flue gas according to claim 1 is it is characterised in that described absorption
The top of tower is additionally provided with net gas outlet.
7. the system absorbing carbon dioxide in coal-fired plant flue gas according to claim 1 is it is characterised in that described centrifugation
Pump be provided be connected with described decomposition tower for the pipeline being back to the sodium bicarbonate crystal isolated in described decomposition tower.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620648946.3U CN205913972U (en) | 2016-06-23 | 2016-06-23 | System for carbon dioxide in absorption coal fired power plant flue gas |
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| CN201620648946.3U CN205913972U (en) | 2016-06-23 | 2016-06-23 | System for carbon dioxide in absorption coal fired power plant flue gas |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111558287A (en) * | 2020-04-30 | 2020-08-21 | 马志浩 | Waste gas treatment system and waste gas treatment process |
| CN115123997A (en) * | 2022-07-15 | 2022-09-30 | 江西新节氢能源科技有限公司 | Vehicle-mounted hydrogen production integrated machine and hydrogen production method |
| CN115228259A (en) * | 2022-07-15 | 2022-10-25 | 江西新节氢能源科技有限公司 | Device and method for extracting carbon dioxide and distilled water in boiler flue gas |
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2016
- 2016-06-23 CN CN201620648946.3U patent/CN205913972U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111558287A (en) * | 2020-04-30 | 2020-08-21 | 马志浩 | Waste gas treatment system and waste gas treatment process |
| CN115123997A (en) * | 2022-07-15 | 2022-09-30 | 江西新节氢能源科技有限公司 | Vehicle-mounted hydrogen production integrated machine and hydrogen production method |
| CN115228259A (en) * | 2022-07-15 | 2022-10-25 | 江西新节氢能源科技有限公司 | Device and method for extracting carbon dioxide and distilled water in boiler flue gas |
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