CN209415492U - The smoke processing system recycled for fume afterheat and moisture - Google Patents
The smoke processing system recycled for fume afterheat and moisture Download PDFInfo
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- CN209415492U CN209415492U CN201822042815.2U CN201822042815U CN209415492U CN 209415492 U CN209415492 U CN 209415492U CN 201822042815 U CN201822042815 U CN 201822042815U CN 209415492 U CN209415492 U CN 209415492U
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- Prior art keywords
- pipe
- absorber
- moisture
- processing system
- water
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Links
- 239000000779 smoke Substances 0.000 title claims abstract description 66
- 239000003517 fume Substances 0.000 title claims abstract description 56
- 239000006096 absorbing agent Substances 0.000 claims abstract description 99
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 51
- 238000007599 discharging Methods 0.000 claims abstract description 32
- 235000019504 cigarettes Nutrition 0.000 claims abstract description 18
- 238000009833 condensation Methods 0.000 claims abstract description 13
- 230000005494 condensation Effects 0.000 claims abstract description 13
- 238000005201 scrubbing Methods 0.000 claims description 45
- 239000007788 liquid Substances 0.000 claims description 27
- 239000010865 sewage Substances 0.000 claims description 16
- 238000005406 washing Methods 0.000 claims description 15
- 238000004064 recycling Methods 0.000 claims description 11
- 239000007789 gas Substances 0.000 claims description 10
- 238000005086 pumping Methods 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 59
- 239000003546 flue gas Substances 0.000 abstract description 58
- 238000010521 absorption reaction Methods 0.000 abstract description 14
- 239000002250 absorbent Substances 0.000 abstract description 5
- 230000002745 absorbent Effects 0.000 abstract description 5
- 239000003595 mist Substances 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 59
- 239000000498 cooling water Substances 0.000 description 16
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 15
- 239000002918 waste heat Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 7
- 238000001704 evaporation Methods 0.000 description 5
- 230000008020 evaporation Effects 0.000 description 5
- 239000007921 spray Substances 0.000 description 4
- 238000011084 recovery Methods 0.000 description 3
- 239000000567 combustion gas Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 235000010333 potassium nitrate Nutrition 0.000 description 1
- 239000004323 potassium nitrate Substances 0.000 description 1
- -1 preferably Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
Abstract
The utility model provides a kind of smoke processing system recycled for fume afterheat and moisture, including absorptive unit and regenerator, drain pipe and inlet tube are equipped between absorptive unit and regenerator, absorptive unit includes the first absorber and the second absorber, smoke discharging pipe sequentially concatenates connection boiler, the first absorber and the second absorber, second absorber is connected to by the second feed liquor branch pipe with inlet tube, and the second feed liquor branch pipe is equipped with heat pump components.In the utility model, absorptive unit includes two-stage absorber, the temperature of absorbent solution in the second absorber can be made lower compared to the temperature of absorbent solution in the first absorber by heat pump components, after first absorber carries out initial absorption to the moisture in flue gas, second absorber can absorb the moisture in flue gas with carrying out more depth, smoke evacuation water capacity is reduced, the white cigarette phenomenon generated during flue gas emission by moisture condensation is effectively reduced；Even if simultaneously also can effectively Mist heat recovering when return water temperature is higher by setting heat pump components.
Description
Technical field
The utility model relates to boiler smoke processing technology fields, refer in particular to a kind of for fume afterheat and moisture recycling
Smoke processing system.
Background technique
With the propulsion of gas replacing coal project, gas fired-boiler in heating using more and more extensive.The row of gas fired-boiler
Cigarette water capacity (water vapour content) is significantly larger than the water capacity of coal-burning boiler, and vapor carries a large amount of latent heat, and waste heat recycling is latent
Power is very big.For heat supply in winter boiler, existing flue gas waste heat recovery mode there are two main classes mode: one kind is to pass through heating water return
Or the water at low temperature and flue gas heat exchange of heat pump preparation, including condensing waste heat recycling (condensing boiler), electric compression heat pump waste heat time
It receives, the recycling of enclosed absorption heat pump waste heat；Another kind of is directly to be contacted flue gas with solution based on solution dehumidification principle, is utilized
Hygroscopic solution absorbs the vapor and latent heat in flue gas, such as open type absorbent formula residual neat recovering system.
But during existing fume treatment, the flue gas that often will appear after processing is all low temperature saturated flue gas, is easy
Moisture condensation generates " white cigarette ", and low-temperature flue gas is not easy to spread, it is sometimes desirable to reheating；The water of high-quality cannot be directly recycled, condensate is wanted
Drain or needs subsequent processing that could utilize；Waste heat recovering effect is limited, when especially boiler blow-down water temperature is higher, flue gas
In a large amount of latent heat cannot recycle or waste heat cost recovery is higher；Equipment is more huge, and nitrogen oxides removal effect is unobvious, follows
Ring medium (solution) is easily contaminated；The technical problems such as equipment corrosion.Therefore, humidity of flue gas how is effectively reduced, reduces cigarette
The pollutant that contains in gas is simultaneously effectively recycled the waste heat of flue gas and moisture, becomes that this field is urgently to be resolved to ask
Topic.
Utility model content
The purpose of the utility model is to provide a kind of smoke processing systems recycled for fume afterheat and moisture, even if pot
When furnace return water temperature is higher also can effectively in flue gas waste heat and moisture recycle, while reducing humidity of flue gas, reduce
The phenomenon that white cigarette generated when flue gas emission by moisture condensation.
A kind of in order to achieve the above object, the utility model provides fume treatment system recycled for fume afterheat and moisture
System, wherein the smoke processing system recycled for fume afterheat and moisture includes absorptive unit and regenerator, the absorption
Unit is connected to by smoke discharging pipe with boiler, passes through drain pipe and inlet tube between the absorptive unit and the regenerator respectively
Connection, the absorptive unit include the first absorber and the second absorber, the smoke discharging pipe sequentially concatenate be connected to the boiler,
First absorber and second absorber, first absorber are connected by the first feed liquor branch pipe and the inlet tube
Logical, second absorber is connected to by the second feed liquor branch pipe with the inlet tube, and the second feed liquor branch pipe, which is equipped with, to drop
The heat pump components of fluid temperature in the low second feed liquor branch pipe, the heat pump components can will be in the second feed liquor branch pipes
The heat transfer of liquid gives the return water of the boiler.
The smoke processing system as described above recycled for fume afterheat and moisture, wherein the inlet tube is equipped with
First Heat Exchanger, the First Heat Exchanger and the first back-flowing and branched pipe heat exchange connect, the first back-flowing and branched pipe and the pot
The water return pipeline of furnace is connected to.
The smoke processing system as described above recycled for fume afterheat and moisture, wherein first absorber is logical
It crosses the first drain branch pipe to be connected to the drain pipe, second absorber is connected by the second drain branch pipe and the drain pipe
It is logical.
The smoke processing system as described above recycled for fume afterheat and moisture, wherein the absorptive unit also wraps
Solution circulation pipe is included, one end of the solution circulation pipe is connected to the inlet tube, and the solution circulation pipe and the feed liquor
Connectivity part between pipe is between the regenerator and the First Heat Exchanger；First absorber passes through the first drain branch
Pipe and a triple valve are connected to the other end of the solution circulation pipe, the drain pipe respectively, on first drain branch pipe
Equipped with first pump housing；Second absorber is connected to by the second drain branch pipe with the solution circulation pipe, second drain
Branch pipe is equipped with second pump housing.
The smoke processing system as described above recycled for fume afterheat and moisture, wherein first absorber
Connection is equipped with the first sewage pipe on bottom or first drain branch pipe, and first sewage pipe is equipped with the first blowdown valve；Institute
It states connection on the bottom or second drain branch pipe of the second absorber and is equipped with the second sewage pipe, second sewage pipe is equipped with
Second blowdown valve.
The smoke processing system recycled for fume afterheat and moisture as described above, wherein the heat pump components include
First condenser, first condenser and the second back-flowing and branched pipe heat exchange connect, the second back-flowing and branched pipe and the pot
The water return pipeline of furnace is connected to.
The smoke processing system as described above recycled for fume afterheat and moisture, wherein described to be used for fume afterheat
Smoke processing system with moisture recycling further includes washing unit, and the washing unit is serially connected with described by the smoke discharging pipe
Between boiler and the absorptive unit, the washing unit includes scrubbing tower, water-circulating pipe, the second heat exchanger and lye tank, institute
The both ends for stating water-circulating pipe are connected to the bottom at the top of the scrubbing tower, the scrubbing tower respectively, and second heat exchanger is set
In on the water-circulating pipe, and second heat exchanger and the back-flowing and branched pipe heat exchange of third connect, the back-flowing and branched pipe of third
It is connected to the water return pipeline of the boiler, the water-circulating pipe is equipped with can be by the liquid in the scrubbing tower by the scrubbing tower
Bottom be delivered to the scrubbing tower top the third pump housing, the lye tank passes through lye supply pipe and the scrubbing tower
Bottom connection, the lye supply pipe are equipped with the 4th pump that the lye in the lye tank can be delivered to the scrubbing tower
Body, the lye supply pipe, which is equipped with, can prevent the liquid of the inside of the scrubbing tower from flowing to the alkali along the lye supply pipe
The check-valves of liquid case, the check-valves be located at the lye supply pipe and the scrubbing tower connectivity part and the 4th pump housing it
Between；Liquid discharging tube is communicated on the water-circulating pipe, the connectivity part between the liquid discharging tube and the water-circulating pipe is located at the water
Between circulation pipe and the connectivity part and second heat exchanger of the scrubbing tower, the liquid discharging tube is equipped with bleeder valve.
The smoke processing system as described above recycled for fume afterheat and moisture, wherein described to be used for fume afterheat
Smoke processing system with moisture recycling further includes steam condensing unit, and the steam condensing unit is including the second condenser and very
Sky pump, the regenerator are connected to by jet chimney with second condenser, the vacuum pump pass through vacuum-pumping tube with it is described
The inside of second condenser is connected to, and second condenser is connected with a condensate delivery pipe, and the condensate delivery pipe is equipped with the
Five pump housings, and second condenser and the 4th back-flowing and branched pipe heat exchange connect, the 4th back-flowing and branched pipe and the boiler
Water return pipeline connection.
The smoke processing system as described above recycled for fume afterheat and moisture, wherein the regenerator is combustion gas
The cigarette delivery pipe of direct combustion type regenerator, the regenerator is connected to the smoke discharging pipe, and the cigarette delivery pipe and the smoke evacuation
Connectivity part between pipeline is between the boiler and the absorptive unit.
Compared with prior art, as follows the advantages of the utility model:
The smoke processing system provided by the utility model recycled for fume afterheat and moisture, wherein absorptive unit include
Two-stage absorber, and the temperature of absorbent solution in the second absorber can be made compared to absorbing in the first absorber by heat pump components
The temperature of solution is lower, so that the second absorber can be to cigarette after the first absorber carries out initial absorption to the moisture in flue gas
Moisture in gas absorbs with carrying out more depth, reduces the water capacity of smoke evacuation, and making finally to discharge fume is unsaturated state, effectively reduces cigarette
The white cigarette phenomenon generated in gas discharge process by moisture condensation, while by setting heat pump components, even if in the return water temperature of boiler
It also can effectively Mist heat recovering when higher.
Detailed description of the invention
Following drawings are only intended to schematically illustrate and explain the present invention, does not limit the model of the utility model
It encloses.Wherein:
Fig. 1 is the structural representation of the smoke processing system provided by the utility model recycled for fume afterheat and moisture
Figure；
Fig. 2 is that another structure of the smoke processing system provided by the utility model recycled for fume afterheat and moisture is shown
It is intended to.
Drawing reference numeral explanation:
1, absorptive unit；
11, drain pipe；
12, inlet tube；
121, First Heat Exchanger；
122, the first back-flowing and branched pipe；
13, the first absorber；
131, the first feed liquor branch pipe；
132, the first drain branch pipe；
1321, first pump housing；
133, the first sewage pipe；
1331, the first blowdown valve；
14, the second absorber；
141, the second feed liquor branch pipe；
142, heat pump components；
1421, evaporator；
1422, the first condenser；
1423, the second back-flowing and branched pipe；
143, the second drain branch pipe；
1431, second pump housing；
144, the second sewage pipe；
1441, the second blowdown valve；
15, solution circulation pipe；
16, triple valve；
2, regenerator；
21, jet chimney；
22, cigarette delivery pipe；
3, washing unit；
31, scrubbing tower；
32, water-circulating pipe；
321, the third pump housing；
33, the second heat exchanger；
331, the back-flowing and branched pipe of third；
34, lye tank；
35, lye supply pipe；
351, the 4th pump housing；
352, check-valves
36, liquid discharging tube；
361, bleeder valve；
4, steam condensing unit；
41, the second condenser；
411, the 4th back-flowing and branched pipe；
42, vacuum pump；
43, condensate delivery pipe；
431, the 5th pump housing
5, boiler；
51, smoke discharging pipe；
6, chimney；
7, air-introduced machine
Specific embodiment
In order to have clearer understanding to the technical solution of the utility model, purpose and effect, now in conjunction with Detailed description of the invention sheet
The specific embodiment of utility model.
As shown in Figures 1 and 2, the utility model provides a kind of fume treatment system recycled for fume afterheat and moisture
System, wherein the smoke processing system recycled for fume afterheat and moisture includes absorptive unit 1 and regenerator 2, absorptive unit 1
It is connected to by smoke discharging pipe 51 with boiler 5, is connected respectively by drain pipe 11 and inlet tube 12 between absorptive unit 1 and regenerator 2
Logical, absorptive unit 1 includes the first absorber 13 and the second absorber 14, and smoke discharging pipe 51 sequentially concatenates connection boiler 5, first and inhales
It receives device 13 to be connected to after the second absorber 14 with chimney 6, smoke discharging pipe 51 is equipped with air-introduced machine 7, effect of the flue gas in air-introduced machine 7
Lower to be emitted into atmosphere after the first absorber 13, the second absorber 14 by chimney 6, i.e., the first absorber 13 and second is inhaled
Receive device 14 be when being connect with smoke discharging pipe 51 be arranged in series, and the first absorber 13 and the second absorber 14 with
Regenerator 2 is to be arranged in parallel when being connected to, and after flue gas enters absorptive unit 1, initially enters the first absorber 13, first
Hygroscopic solution in absorber 13 first carries out initial absorption to the moisture in flue gas, and then flue gas enters in the second absorber 14,
The moisture in flue gas is further absorbed by the hygroscopic solution in the second absorber 14 again, the first absorber 13 passes through
First feed liquor branch pipe 131 is connected to inlet tube 12, and the second absorber 14 is connected to by the second feed liquor branch pipe 141 with inlet tube 12,
The hygroscopic solution in hygroscopic solution and the second absorber 14 in first absorber 13 is after absorbing the moisture in flue gas
It is diluted, diluted hygroscopic solution is entered in regenerator 2 by drain pipe 11 to be heated to boiling and be concentrated, and the moisture absorption after concentration is molten
Liquid enters the first absorber 13 and second by the first feed liquor branch pipe 131 and the second feed liquor branch pipe 141 respectively by inlet tube 12 and inhales
It receives in device 14, the second feed liquor branch pipe 141 is equipped with the heat pump components 142 that can reduce the fluid temperature in the second feed liquor branch pipe 141,
Make the temperature of the hygroscopic solution in the second absorber 14 lower than the temperature of the hygroscopic solution in the first absorber 13, this is because not
Water content is very high in flue gas when through handling, and the hygroscopic solution for not needing very low temperature can also inhale the vapor in flue gas
It receives, hygroscopic solution is cooled down by boiler blow-down water, and after the moisture in flue gas is absorbed into a certain degree, then it needs compared with low temperature
The hygroscopic solution of degree could carry out depth absorption to the moisture in flue gas, therefore the utility model is using the first absorber 13 and tool
There is the second absorber 14 of the hygroscopic solution of lower temperature to carry out classification absorption to flue gas, the moisture in flue gas can be effectively improved
The rate of recovery makes the unsaturated state of the flue gas of discharge, to disappear after reducing flue gas discharge due to white cigarette phenomenon caused by condensing
White effect is obvious.
Meanwhile absorptive unit 1 is set as two-stage absorber by the utility model, it is only necessary to the moisture absorption to the second absorber 14 is entered
Solution is cooled down, and is not needed to cool down to hygroscopic solution all in absorptive unit 1, can be effectively reduced molten to moisture absorption
Liquid energy spent when cooling down.The hygroscopic solution for entering the second absorber 14 is dropped due to using (voltage contracting) heat pump
Temperature, even if return water temperature is higher, system also has preferable waste heat and moisture recovering effect.
Further, as shown in Figures 1 and 2, the flue gas provided by the utility model recycled for fume afterheat and moisture
Processing system, wherein inlet tube 12 is equipped with First Heat Exchanger 121, and First Heat Exchanger 121 is changed with the first back-flowing and branched pipe 122
It is thermally connected, the first back-flowing and branched pipe 122 is connected to the water return pipeline of boiler 5.Hygroscopic solution has non-after heating in regenerator 2
Often high temperature can effectively be exchanged the heat of hygroscopic solution to the after flowing into inlet tube 12 by First Heat Exchanger 121
Boiler blow-down water in one back-flowing and branched pipe 122, realizes the recycling of heat.
Further, as shown in Figure 1, the fume treatment provided by the utility model recycled for fume afterheat and moisture
System, wherein the first absorber 13 is connected to by the first drain branch pipe 132 with drain pipe 11, and the second absorber 14 passes through second
Drain branch pipe 143 is connected to drain pipe 11, the hygroscopic solution in hygroscopic solution and the second absorber 14 in the first absorber 13
It flows into drain pipe 11 by corresponding first drain branch pipe 132, the second drain branch pipe 143 respectively after water suction dilution, and passes through
Drain pipe 11, which flows into, carries out heating evaporation concentration in regenerator 2.
In setting the first drain branch pipe 132, the first feed liquor branch pipe 131, the second drain branch pipe 143, the second feed liquor branch pipe 141
When, the first drain branch pipe 132, the second drain branch pipe 143 bottom with the bottom of the first absorber 13, the second absorber 14 respectively
Connection, the first feed liquor branch pipe 131, the second feed liquor branch pipe 141 top with the top of the first absorber 13, the second absorber 14 respectively
Portion's connection, the first absorber 13 and the hygroscopic solution in the second absorber 14 are after the moisture in absorption flue gas by corresponding suction
The bottom discharge of device is received, and the hygroscopic solution after concentration passes through the first feed liquor branch pipe 131, the second feed liquor branch pipe 141 by right respectively
The top for the absorber answered enter corresponding absorber inside and from top to bottom spray, during spray hygroscopic solution with
Smoke contacts simultaneously absorb the moisture in flue gas again, and so circulation recycles the moisture in flue gas.
Further, as shown in Fig. 2, the fume treatment provided by the utility model recycled for fume afterheat and moisture
System, wherein absorptive unit 1 further includes solution circulation pipe 15, and one end of solution circulation pipe 15 is connected to inlet tube 12, and solution
Connectivity part between circulation pipe 15 and inlet tube 12 is between regenerator 2 and First Heat Exchanger 121；First absorber 13 passes through
First drain branch pipe 132 and a triple valve 16 are connected to the other end of solution circulation pipe 15, drain pipe 11 respectively, the first drain
Branch pipe 132 is equipped with first pump housing 1321；Second absorber 14 is connected to by the second drain branch pipe 143 with solution circulation pipe 15,
Second drain branch pipe 143 is equipped with second pump housing 1431.By the way that solution circulation pipe 15 is arranged, can make in the first absorber 13
Whole hygroscopic solutions in part hygroscopic solution and the second absorber 14 are direct without regenerator 2 by solution circulation pipe 15
It again flows into inlet tube 12, firstly reduces the amount for needing to carry out the hygroscopic solution of heating evaporation concentration in regenerator 2, drop
Solution is heated to the required heat that boils by low regenerator 2, heat exchange area needed for reducing regenerator 2 and size, meanwhile, then
Temperature can substantially drop after the hygroscopic solution for the concentration that raw device 2 flows out after heating is mixed with the hygroscopic solution in solution circulation pipe 15
It is low, the heat exchange load and required heat exchange area of First Heat Exchanger 121 can be effectively reduced.
Preferably, as shown in Figures 1 and 2, the flue gas provided by the utility model recycled for fume afterheat and moisture
Processing system, wherein it is connected on the bottom of the first absorber 13 or the first drain branch pipe 132 and is equipped with the first sewage pipe 133, first
Sewage pipe 133 is equipped with the first blowdown valve 1331；Connection is equipped with the on the bottom of second absorber 14 or the second drain branch pipe 143
Two sewage pipes 144, the second sewage pipe 144 are equipped with the second blowdown valve 1441.Pass through the first sewage pipe 133 of setting and the first blowdown
Valve 1331, the second sewage pipe 144 and the second blowdown valve 1441 can be molten to the moisture absorption in the first absorber 13 and the second absorber 14
Liquid carries out discharge replacement, to guarantee the cleaning of the hygroscopic solution in the first absorber 13 and the second absorber 14.
Further, as shown in Figures 1 and 2, the flue gas provided by the utility model recycled for fume afterheat and moisture
Processing system, wherein heat pump components 142 include the first condenser 1422 and evaporator 1421, the first condenser 1422 and second
The back-flowing and branched heat exchange of pipe 1423 connection, the second back-flowing and branched pipe 1423 are connected to the water return pipeline of boiler 5.Wherein, heat pump components
142 be the device that heat can be made to flow to high temp objects from cryogenic object, and concrete composition structure can refer to existing compression
The structure of (heat pump) equipment of freezing, the utility model is herein without being described in detail.
Further, as shown in Figures 1 and 2, the flue gas provided by the utility model recycled for fume afterheat and moisture
Processing system, wherein 5 smoke processing system of boiler further includes washing unit 3, and washing unit 3 is serially connected with by smoke discharging pipe 51
Between boiler 5 and absorptive unit 1, washing unit 3 includes scrubbing tower 31, water-circulating pipe 32, the second heat exchanger 33 and lye tank 34,
Scrubbing tower 31 is spray packed tower, and the both ends of water-circulating pipe 32 are connected to the bottom at the top of scrubbing tower 31, scrubbing tower 31 respectively,
It sprays the recirculated cooling water in scrubbing tower 31 downwards by the top of scrubbing tower 31, and is recycled in the bottom of scrubbing tower 31 by water
Pipe 32 flows back into the top of scrubbing tower 31 again, realizes the circulation of recirculated cooling water, will during recirculated cooling water circulation
Into solubility nox adsorption contained in the flue gas in scrubbing tower 31, simultaneously because the cooling effect of recirculated cooling water makes
Flue gas cool-down, while the condensation of a small amount of vapor and flowing away circulation with recirculated cooling water in flue gas, so reach flue gas into
Enter the polluted gas removed before absorptive unit 1 in flue gas, prevent flue gas to the hygroscopic solution in absorptive unit 1 generate pollution,
The purpose to cool down to flue gas；Second heat exchanger 33 is set on water-circulating pipe 32, and the second heat exchanger 33 and third return water point
The heat exchange connection of branch pipe 331, the back-flowing and branched pipe 331 of third are connected to the water return pipeline of boiler 5, and recirculated cooling water is in scrubbing tower 31
It can absorb the heat of flue gas during from top to bottom spraying and heat up, by the way that the second heat exchanger is arranged on water-circulating pipe 32
33, the heat that recirculated cooling water absorbs can be passed to the boiler blow-down water in the back-flowing and branched pipe 331 of third in a manner of heat exchange,
Realize the recycling of fume afterheat；Water-circulating pipe 32 is equipped with can be defeated by the bottom of scrubbing tower 31 by the liquid in scrubbing tower 31
It send to the third pump housing 321 at the top of scrubbing tower 31, to guarantee recirculated cooling water smooth circulation；Lye tank 34 is supplied by lye
Pipe 35 is connected to the bottom of scrubbing tower 31, and lye supply pipe 35, which is equipped with, to be delivered to scrubbing tower 31 for the lye in lye tank 34
The 4th pump housing 351 recirculated cooling water can be made in alkaline water, so as to further by conveying lye into scrubbing tower 31
Ground improves absorption of the recirculated cooling water to soluble nitrogen oxide, preferably, lye is wet chemical, potassium carbonate absorbs
The potassium nitrate generated after nitrogen oxides can do chemical fertilizer use after processing, and lye supply pipe 35 is equipped with check-valves 352, check-valves
352 between lye supply pipe 35 and the connectivity part and the 4th pump housing 351 of scrubbing tower 31, can prevent 31 bottom cycle of scrubbing tower
Cooling water is back to lye tank 34；Liquid discharging tube 36, the company between liquid discharging tube 36 and water-circulating pipe 32 are communicated on water-circulating pipe 32
Between water-circulating pipe 32 and the connectivity part and the second heat exchanger 33 of scrubbing tower 31, liquid discharging tube 36 is equipped with bleeder valve at logical place
361, by setting liquid discharging tube 36 and bleeder valve 361 is arranged on liquid discharging tube 36 can be for staff periodically in scrubbing tower 31
Recirculated cooling water is discharged, and to guarantee the alkalinity of recirculated cooling water under the premise of guaranteeing liquid measure, is avoided in scrubbing tower 31
Recirculated cooling water largely increases the generation of the case where accumulation；In addition, connectivity part between liquid discharging tube 36 and water-circulating pipe 32 can also be with
Between the connectivity part and the second heat exchanger 33 at the top of water-circulating pipe 32 and scrubbing tower 31, make recirculated cooling water from scrubbing tower
It is discharged again after exchanging heat after 31 bottom outflow with the second heat exchanger 33, further raising fume afterheat utilization efficiency.
Further, as shown in Figures 1 and 2, the flue gas provided by the utility model recycled for fume afterheat and moisture
Processing system, wherein the smoke processing system recycled for fume afterheat and moisture further includes steam condensing unit 4, and steam is cold
Solidifying unit 4 includes the second condenser 41 and vacuum pump 42, and regenerator 2 is connected to by jet chimney 21 with the second condenser 41, then
Raw device 2 carries out the vapor that heating evaporation obtains to hygroscopic solution and is entered in the second condenser 41 by jet chimney 21, vacuum
Pump 42 is connected to by vacuum-pumping tube with the inside of the second condenser 41, and the second condenser 41 links together with regenerator 2
Airtight cavity can be taken away the fixed gas of the cavity by vacuum pump 42, make to maintain vacuum in the cavity, keep preferable condensation
Effect improves the condensation efficiency of the second condenser 41, meanwhile, keep the hygroscopic solution in regenerator 2 low oxygen containing in low-pressure low-temperature
It boils under state, reduces corrosion of the hygroscopic solution to regenerator 2, the second condenser 41 is connected with a condensate delivery pipe 43, coagulates
Water discharge spout 43 is equipped with the 5th pump housing 431 and takes the condensed water in the second condenser 41 away, and steam condensing unit 4 can also wrap
A condensation tank is included, condensation tank is connect with condensate delivery pipe 43, the condensed water that vapor obtains after condensing in the second condenser 41
It is discharged into condensation tank and is collected by condensate delivery pipe 43, can be used as the moisturizing of boiler 5, and the second condenser 41 and the 4th time
The heat exchange connection of moisture branch pipe 411, the 4th back-flowing and branched pipe 411 are connected to the water return pipeline of boiler 5, the 4th back-flowing and branched pipe 411
It exchanges heat with the vapor in the second condenser 41, so that the heat to vapor is recycled, improves boiler blow-down water
Temperature, it is with good economic efficiency.
Preferably, as shown in Figures 1 and 2,5 smoke processing system of boiler provided by the utility model, wherein regenerator
2 be Gas Direct-fired type regenerator, constructs similar with Analysis of Minitype Gas-fired Steam Boiler, is heat source by diluted hygroscopic solution using combustion gas
It boils, makes its internal moisture evaporation, wherein absorptive unit 1 is to moisture in the uptake and regenerator 2 of the moisture in flue gas
The condensation number of vapor is equal in evaporation capacity and steam condensing unit 4；Preferably, provided by the utility model be used for flue gas
The smoke processing system of waste heat and moisture recycling, wherein the inner upper of regenerator 2 is equipped with mist eliminating net, prevents hygroscopic solution from existing
Carried and influenced secretly the water quality of condensed water in heating process by vapor；The cigarette delivery pipe 22 of regenerator 2 is connected to smoke discharging pipe 51,
And the connectivity part between cigarette delivery pipe 22 and the smoke discharging pipe 51 is between boiler 5 and absorptive unit 1, it is single being equipped with washing
When member 3, the connectivity part between cigarette delivery pipe 22 and smoke discharging pipe 51 is between boiler 5 and washing unit 3, to regenerator 2
Flue gas caused by middle fuel gas buring is handled together with the flue gas of boiler 5.
Preferably, the smoke processing system provided by the utility model recycled for fume afterheat and moisture, wherein the
The back-flowing and branched pipe of one back-flowing and branched pipe 122, the second back-flowing and branched pipe 1423, third 331 and the 4th back-flowing and branched pipe 411 are with parallel connection
Mode be connected to respectively with water return pipeline or the first back-flowing and branched pipe 122, the second back-flowing and branched pipe 1423, third are back-flowing and branched
Pipe 331 and the 4th back-flowing and branched pipe 411 sequentially connect in series and are connected to water return pipeline, the utility model not with
This is limited.
It should be noted that in the present invention, flue gas in the first absorber 13 with the stream in the second absorber 14
Dynamic direction can be passes through the first absorber 13 and the second absorber 14 (adverse current) from bottom to top, or can also be horizontally through the
One absorber 13 and the second absorber 14 (distributary), the utility model is not limited thereto.
Compared with prior art, as follows the advantages of the utility model:
1, the smoke processing system provided by the utility model recycled for fume afterheat and moisture, wherein absorptive unit packet
It includes two-stage absorber, and the temperature of absorbent solution in the second absorber can be made compared to inhaling in the first absorber by heat pump components
The temperature for receiving solution is lower, thus after the first absorber absorbs the moisture in flue gas, the second absorber can not be by returning
The limitation of coolant-temperature gage further carries out depth absorption to the moisture in flue gas, more than in more effectively recovered flue gas
Heat and moisture, while reducing the water capacity of smoke evacuation, make finally to discharge fume for unsaturated state, effectively reduce during flue gas emission because
The white cigarette phenomenon for condensing and generating.
2, the smoke processing system provided by the utility model recycled for fume afterheat and moisture, to flue gas
During reason, the soluble nitrogen oxide in flue gas is effectively absorbed by the circulating cooling water energy in washing unit, is prevented
Flue gas pollutes the hygroscopic solution in absorptive unit, reduces amount of nitrogen oxides in smoke evacuation.
3, the smoke processing system provided by the utility model recycled for fume afterheat and moisture, by more of setting with
The back-flowing and branched pipe and washing unit, absorptive unit and steam condensing unit of boiler blow-down water pipeline connection, which exchange heat, to be connected, and can be made each
Water in back-flowing and branched pipe improves the water return pipeline of inflow boiler after temperature by heat exchange, to improve boiler blow-down water temperature, together
When the obtained condensation water energy of steam condensing unit be directly used as boiler replenishing water, so that fume afterheat and moisture be made to have obtained adequately
Recycling, system are only cooled down the solution for entering the second absorber using heat pump, are reduced the compressor power consumption in heat pump, are transported
Row is at low cost, with good economic efficiency.
The above descriptions are merely exemplary embodiments of the present utility model, the model being not intended to limit the utility model
It encloses.Any those skilled in the art, it is made etc. under the premise of not departing from the conceptions and principles of the utility model
With variation and modification, the range of the utility model protection should belong to.
Claims (9)
1. a kind of smoke processing system recycled for fume afterheat and moisture, which is characterized in that it is described for fume afterheat and
The smoke processing system of moisture recycling includes absorptive unit and regenerator, and the absorptive unit is connected by smoke discharging pipe and boiler
It is logical, it is connected to respectively by drain pipe and inlet tube between the absorptive unit and the regenerator, the absorptive unit includes the
One absorber and the second absorber, the smoke discharging pipe sequentially concatenate the connection boiler, first absorber and described the
Two absorbers, first absorber are connected to by the first feed liquor branch pipe with the inlet tube, and second absorber passes through the
Two feed liquor branch pipes are connected to the inlet tube, and the second feed liquor branch pipe is equipped with the liquid that can be reduced in the second feed liquor branch pipe
The heat pump components of temperature, the heat pump components can give the heat transfer of the liquid in the second feed liquor branch pipe to the boiler
Return water.
2. the smoke processing system according to claim 1 recycled for fume afterheat and moisture, which is characterized in that described
Inlet tube is equipped with First Heat Exchanger, and the First Heat Exchanger and the first back-flowing and branched pipe heat exchange connect, first return water point
Branch pipe is connected to the water return pipeline of the boiler.
3. the smoke processing system according to claim 1 recycled for fume afterheat and moisture, which is characterized in that described
First absorber is connected to by the first drain branch pipe with the drain pipe, and second absorber passes through the second drain branch pipe and institute
State drain pipe connection.
4. the smoke processing system according to claim 2 recycled for fume afterheat and moisture, which is characterized in that described
Absorptive unit further includes solution circulation pipe, and one end of the solution circulation pipe is connected to the inlet tube, and the solution recycles
Connectivity part between pipe and the inlet tube is between the regenerator and the First Heat Exchanger；First absorber is logical
It crosses the first drain branch pipe and a triple valve to be connected to the other end of the solution circulation pipe, the drain pipe respectively, described
One drain branch pipe is equipped with first pump housing；Second absorber is connected to by the second drain branch pipe with the solution circulation pipe,
Second drain branch pipe is equipped with second pump housing.
5. the smoke processing system according to claim 3 or 4 recycled for fume afterheat and moisture, which is characterized in that
Connection is equipped with the first sewage pipe on the bottom of first absorber or first drain branch pipe, sets on first sewage pipe
There is the first blowdown valve；Connection is equipped with the second sewage pipe on the bottom of second absorber or second drain branch pipe, described
Second sewage pipe is equipped with the second blowdown valve.
6. the smoke processing system according to any one of claims 1 to 4 recycled for fume afterheat and moisture, feature
It is, the heat pump components include the first condenser, first condenser and the second back-flowing and branched pipe heat exchange connection, and described the
Two back-flowing and branched pipes are connected to the water return pipeline of the boiler.
7. the smoke processing system according to any one of claims 1 to 4 recycled for fume afterheat and moisture, feature
It is, the smoke processing system recycled for fume afterheat and moisture further includes washing unit, and the washing unit passes through
The smoke discharging pipe is serially connected between the boiler and the absorptive unit, the washing unit include scrubbing tower, water-circulating pipe,
Second heat exchanger and lye tank, the both ends of the water-circulating pipe bottom with the top of the scrubbing tower, the scrubbing tower respectively
Connection, second heat exchanger are set on the water-circulating pipe, and second heat exchanger and the back-flowing and branched pipe heat exchange of third connect
It connects, the back-flowing and branched pipe of third is connected to the water return pipeline of the boiler, and the water-circulating pipe is equipped with can be by the washing
Liquid in tower is delivered to the third pump housing at the top of the scrubbing tower by the bottom of the scrubbing tower, and the lye tank passes through alkali
Liquid supply pipe is connected to the bottom of the scrubbing tower, and the lye supply pipe is equipped with and can convey the lye in the lye tank
To the 4th pump housing of the scrubbing tower, the lye supply pipe, which is equipped with, can prevent the liquid of the inside of the scrubbing tower described in
Lye supply pipe flow to the check-valves of the lye tank, and the check-valves is located at the company of the lye supply pipe and the scrubbing tower
Between logical place and the 4th pump housing；Be communicated with liquid discharging tube on the water-circulating pipe, the liquid discharging tube and the water-circulating pipe it
Between connectivity part be located between the water-circulating pipe and the connectivity part and second heat exchanger of the scrubbing tower, the liquid discharging tube
It is equipped with bleeder valve.
8. the smoke processing system according to any one of claims 1 to 4 recycled for fume afterheat and moisture, feature
It is, the smoke processing system recycled for fume afterheat and moisture further includes steam condensing unit, the steam condensation
Unit includes the second condenser and vacuum pump, and the regenerator is connected to by jet chimney with second condenser, described true
Sky pump is connected to by vacuum-pumping tube with the inside of second condenser, and second condenser is connected with a condensate delivery pipe,
The condensate delivery pipe is equipped with the 5th pump housing, and second condenser and the 4th back-flowing and branched pipe heat exchange connection, and described the
Four back-flowing and branched pipes are connected to the water return pipeline of the boiler.
9. the smoke processing system according to any one of claims 1 to 4 recycled for fume afterheat and moisture, feature
It is, the regenerator is Gas Direct-fired type regenerator, and the cigarette delivery pipe of the regenerator is connected to the smoke discharging pipe, and institute
The connectivity part between cigarette delivery pipe and the smoke discharging pipe is stated between the boiler and the absorptive unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822042815.2U CN209415492U (en) | 2018-12-06 | 2018-12-06 | The smoke processing system recycled for fume afterheat and moisture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822042815.2U CN209415492U (en) | 2018-12-06 | 2018-12-06 | The smoke processing system recycled for fume afterheat and moisture |
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| Publication Number | Publication Date |
|---|---|
| CN209415492U true CN209415492U (en) | 2019-09-20 |
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ID=67937146
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822042815.2U Withdrawn - After Issue CN209415492U (en) | 2018-12-06 | 2018-12-06 | The smoke processing system recycled for fume afterheat and moisture |
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| CN (1) | CN209415492U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109442452A (en) * | 2018-12-06 | 2019-03-08 | 清华大学 | The smoke processing system recycled for fume afterheat and moisture |
-
2018
- 2018-12-06 CN CN201822042815.2U patent/CN209415492U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109442452A (en) * | 2018-12-06 | 2019-03-08 | 清华大学 | The smoke processing system recycled for fume afterheat and moisture |
| CN109442452B (en) * | 2018-12-06 | 2024-02-23 | 清华大学 | Flue gas treatment system for recycling flue gas waste heat and moisture |
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