CN107982953A - A kind of desulfurization fume condensation water lift equipment and its water lift technique - Google Patents
A kind of desulfurization fume condensation water lift equipment and its water lift technique Download PDFInfo
- Publication number
- CN107982953A CN107982953A CN201711178932.5A CN201711178932A CN107982953A CN 107982953 A CN107982953 A CN 107982953A CN 201711178932 A CN201711178932 A CN 201711178932A CN 107982953 A CN107982953 A CN 107982953A
- Authority
- CN
- China
- Prior art keywords
- flue gas
- water
- side part
- heat pipe
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 85
- 238000009833 condensation Methods 0.000 title claims abstract description 30
- 230000005494 condensation Effects 0.000 title claims abstract description 30
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 22
- 230000023556 desulfurization Effects 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims description 28
- 239000003517 fume Substances 0.000 title abstract 4
- 239000003546 flue gas Substances 0.000 claims abstract description 120
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 119
- 238000003809 water extraction Methods 0.000 claims abstract description 17
- 238000012546 transfer Methods 0.000 claims abstract description 15
- 229920006395 saturated elastomer Polymers 0.000 claims description 33
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 239000002826 coolant Substances 0.000 claims description 5
- 239000013589 supplement Substances 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- 229910021529 ammonia Inorganic materials 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 abstract description 8
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 abstract description 4
- 239000003344 environmental pollutant Substances 0.000 abstract description 2
- 231100000719 pollutant Toxicity 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract description 2
- 239000003500 flue dust Substances 0.000 abstract 1
- 239000003643 water by type Substances 0.000 abstract 1
- 239000000779 smoke Substances 0.000 description 7
- 230000008901 benefit Effects 0.000 description 5
- 238000003303 reheating Methods 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- 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
- B01D53/002—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 condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/80—Water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
By the use of heat pipe as a kind of cooling condensed water extraction equipment of heat transfer element, moisture is recycled from wet desulphurization saturation neat stress.While moisture in recycling desulfurization saturation neat stress, by condensation release heat transfer into air.Working media circulates between hot side (fume side) and cold side (atmospheric side) in heat pipe, desulfurization fume is constantly cooled down condensation, and heat is constantly transferred in air from flue gas.The present invention recycles a large amount of condensed waters from desulfurization fume, while saving water resource, promotes the secondary removing of the multiple pollutants such as flue dust, sulfur dioxide.
Description
Technical Field
The invention relates to the technical field of recovering moisture from wet desulphurization saturated clean flue gas, in particular to a desulphurization flue gas condensation water-extracting device.
Background
The wet desulphurization process has the advantages of high desulphurization efficiency, low operation cost, mature technology, simple operation and the like, and occupies an absolutely dominant position in the field of flue gas desulphurization and purification treatment. The content of the sulfur is about more than 95 percent in the domestic flue gas desulfurization and purification field, and the content of the sulfur is more than 99 percent in the flue gas ultra-low emission control field.
The flue gas at the outlet of the wet desulphurization system is in a saturated or supersaturated state, the temperature of the flue gas is 50-55 ℃, and the water vapor accounts for 12-18%. The wet desulphurization system is a water-consuming household in a power plant, taking millions of units as an example, and the quantity of desulphurization evaporation water is about 100 t/h.
The high-temperature saturated clean flue gas carries a large amount of water vapor and liquid drops, and a large amount of desulfurization water supplement is consumed. The contradiction between the excessive consumption of wet desulphurization water and the shortage of water resources is increasingly shown, and is particularly prominent in water-poor areas. Under the situation that the current water resource is increasingly valuable, a desulfurization flue gas condensation water-lifting device is urgently needed to reduce the power generation water consumption and meet the huge demand of industrial production water.
Along with the enhancement of environmental protection consciousness and the upgrading of water-saving and energy-saving requirements, "classification and quality-based water utilization and recycling" become necessary choices of coal-fired power plants. In the working scheme of fully implementing ultralow emission and energy-saving modification of coal-fired power plants, which was published in 2015, thermal power plants are required to pay more attention to deep water conservation and wastewater zero emission while aiming at reducing the emission concentration of atmospheric pollution. The water resources are used more strictly in 2015 and discharged in 9 months, the thermal power industry is required to promote the utilization of regenerated water, the total water consumption is controlled, and the water utilization benefit is improved, so that the power generation water consumption of a coal-fired power plant is reduced, and the water in the desulfurized flue gas is recovered.
In order to recover water from high-temperature saturated clean flue gas, the flue gas must be cooled and condensed, and the methods generally adopted are a direct heat exchange method and an indirect heat exchange method. The direct heat exchange method directly sprays water into the flue gas in a flue gas condensing tower for cooling and condensing, and recovers the moisture in the flue gas. The flue gas condensate water and the circulating cooling water are collected and then enter the dry air cooler together, and the flue gas condensate water and the circulating cooling water are cooled and recycled. The method occupies a large area and has more equipment, and the circulating cooling water exchanges heat with the flue gas firstly and then exchanges heat with the air in the dry air cooler and undergoes secondary gas-water heat exchange. The indirect heat exchange method utilizes a dividing wall heat exchanger to cool and condense the flue gas. A company cools and condenses the flue gas by using the river water for the circulating pump, the water collecting effect is obvious, and about 50 tons of water can be recovered per hour. However, the project has no universality, river water after heat exchange is directly discharged, the ecological environment of the river is certainly influenced by heat pollution, and certain environmental risks also exist.
How to exchange heat with the flue gas more efficiently and how to obtain a large amount of cheap cooling media becomes the key for condensing and extracting water from the flue gas. A Heat Pipe (Heat Pipe) is a Heat transfer element having high Heat conductive properties, and was discovered by the american golgler in 1944. In the early sixties, the method is successfully applied to the aerospace technology, and then the method arouses great interest and attention of various scholars. The heat pipe heat exchanger has the advantages of high heat transfer efficiency, compact structure, small pressure loss, being beneficial to controlling dew point corrosion and the like, and is widely applied to industries such as metallurgy, chemical engineering, oil refining, boilers, ceramics, traffic, light textile, machinery, electronics and the like at present; water has at present been severely challenged as a traditional cooling medium, and has been gradually replaced by air cooling, particularly in northern water-deficient areas. The economy of the existing air cooler is greatly improved, and compared with a water cooler, the air cooler has the advantages of low maintenance cost and longer service life.
Disclosure of Invention
The invention aims to provide desulfurized flue gas condensation water-lifting equipment, which comprises an equipment shell 6 and a heat pipe 5; the heat pipe 5 comprises a cold side part and a hot side part, wherein the cold side part is arranged outside the shell 6, the hot side part is accommodated in the shell 6, and a working medium in the heat pipe circularly transfers heat between the hot side part and the cold side part; the upstream of the equipment shell 6 is connected with the wet desulphurization system 1, and the downstream is connected with the chimney 3.
Furthermore, the heat pipe 5 adopts a thermosiphon, and the filling amount of the working medium in the pipe is 65%.
Further, the working medium is water, ammonia, R22, R134a, alcohol or acetone.
Furthermore, the material of the hot side part of the heat pipe can be selected from nickel-based alloys 2205 and 2507 or titanium, and the material of the cold side part can be selected from common carbon steel.
Further, a flue gas recuperator 4 is arranged between the shell 6 and the chimney 3.
Further, the heat pipe shape may be tubular, plate-like, or employ a separate heat pipe element.
Further, the heat pipes 5 are arranged in a staggered manner, and the cold side part can adopt a finned pipe or a screwed pipe structure.
Further, a sealing ring or a conical line is adopted for sealing between the heat pipe 5 and the equipment shell 6.
The invention also aims to provide a water extraction process adopting the desulfurized flue gas condensation water extraction equipment, which sequentially comprises the following steps: step 1, introducing wet desulphurization saturated clean flue gas of a wet desulphurization system 1 into a shell 6 of the desulphurization flue gas condensation water-extraction equipment; step 2, exchanging heat between the saturated clean flue gas and a working medium dividing wall circulating between a hot side part and a cold side part in the heat pipe 5, and cooling and condensing the saturated clean flue gas to form low-temperature saturated clean flue gas and flue gas condensate water; step 3, discharging the low-temperature saturated clean flue gas through the chimney 3, collecting the flue gas condensate water, and using the collected flue gas condensate water as process water supplement water of a desulfurization system for reusing in the desulfurization system; and 4, the heat pipe 5 transfers the heat released by condensation to the atmosphere through the cold side part.
In the water lifting process, air is further selected as a cooling medium for the cold side part.
Further, in the step 3, before the low-temperature saturated clean flue gas is discharged through the chimney 3, the low-temperature saturated clean flue gas also passes through the flue gas reheater 4 to exchange heat with steam or hot water F in the flue gas reheater 4 through a dividing wall, and after reheating, high-temperature unsaturated clean flue gas E is formed and is discharged from the chimney 3 through a flue.
The invention has the characteristics and advantages that:
a. the heat pipe is used as a heat exchange element, heat is transferred through boiling, evaporation, cooling and condensation of working media in the heat pipe, and the heat transfer efficiency is high;
b. the working medium in the heat pipe runs through potential difference and density difference, no external power is needed, the element does not need to be frequently replaced, and the element can be rapidly replaced even if damaged, so that the normal production is not influenced;
c. the cold side (atmosphere side) adopts air as a cooling medium, and has important significance for northern water-deficient areas;
d. the cold side (atmosphere side) adopts finned tubes, threaded tubes and the like to carry out enhanced heat transfer;
e. the shell of the device adopts a variable cross-section design, and the purpose of self-cleaning ash is achieved by controlling the flow rate of the flue gas passing through the heat pipe;
f. the final temperature of the flue gas can be determined according to the requirements of condensing and water-extracting the desulfurized flue gas, so that the number of heat pipes and the heat transfer area ratio of the cold side and the hot side are adjusted;
drawings
FIG. 1 is a schematic front view of a condensed water-lifting apparatus of the present invention,
figure 2 is a schematic plan view of a condensate water lifting apparatus of the present invention,
FIG. 3 is a schematic flow diagram of the desulfurized flue gas condensed water extraction process of the present invention,
figure 4 is a schematic view of the sealing structure between the heat pipe and the apparatus casing of the present invention,
wherein,
1-a wet desulphurization system, 2-a condensation water-lifting device, 3-a chimney, 4-a flue gas reheater, 5-a heat pipe, 6-a device shell and 7-a sealing ring;
a-raw flue gas, B-high temperature saturated clean flue gas, C-low temperature saturated clean flue gas, D-flue gas condensate water, E-reheat clean flue gas, F-steam or hot water, and G-steam condensate water or hot return water.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
The invention utilizes the heat pipe as a heat transfer element to cool and condense wet desulphurization saturated clean flue gas, recovers moisture in the saturated clean flue gas, and transfers heat released by condensation to the atmosphere. The condensation water lifting equipment takes the heat pipe as a heat exchange element, working media in the pipe are boiled and evaporated after absorbing heat at the hot side (smoke side), and are cooled and condensed at the cold side (atmosphere side), so that the desulfurization smoke is cooled and condensed continuously, and heat is transferred to the atmosphere from the smoke continuously. The invention recovers a large amount of condensed water from the desulfurized flue gas, saves water resources, promotes the secondary removal of various pollutants such as smoke dust, sulfur dioxide and the like, and is an effective guarantee for realizing ultralow emission of the coal-fired thermal power generating unit.
In order to achieve the purpose, the heat pipe is used as a heat exchange element, and the heat released by the condensation of the desulfurized flue gas is transferred to the atmosphere by utilizing the efficient heat conduction performance of the heat pipe. As shown in fig. 1-3, the present invention relates to a desulfurized flue gas condensed water-extracting device, which comprises a device shell 6 and heat pipes 5, and can be arranged in a flue between a clean flue gas outlet of a wet desulphurization system and a flue gas recuperator (if any) or an inlet of a discharge chimney, or the heat pipes can be directly arranged in the flue, namely, the device shell 6 is connected with the wet desulphurization system 1 at the upstream and connected with an unnecessary flue gas recuperator 4 at the downstream, and the unnecessary flue gas recuperator 4 is connected with the chimney 3; the heat pipe 5 is composed of a cold side part exposed out of the housing 6 and a hot side part accommodated in the housing 6, and the working medium in the heat pipe is circularly transferred between the hot side part and the cold side part.
In the desulfurization flue gas condensation water-lifting device, the heat pipe 5 adopts a thermosiphon, the working medium in the heat pipe is water, and the liquid filling amount is 65 percent. The working medium in the heat pipe 5 may be water, ammonia, R22, R134a, alcohol, acetone, or the like.
In the desulfurization flue gas condensation water-lifting device, in order to effectively prevent low-temperature dew point corrosion, the material of the hot side part of the heat pipe can be nickel-based alloys 2205 and 2507 or titanium, and the material of the cold side part can be only common carbon steel. Preferably, the material of the hot side part of the heat pipe 5 is 2205, and the material of the cold side part is 20 steel. The heat pipe shape can be tubular, plate-shaped or adopt a separate heat pipe element, and can be adjusted according to the smoke property and the field condition. The heat pipes 5 are arranged in a staggered manner, and the cold side part can adopt a structure of finned pipes, threaded pipes and the like, such as aluminum windowed straight fins.
As shown in FIG. 3, the present invention also provides a water extraction process using the aforementioned desulfurized flue gas condensed water extraction equipment, for example, in the equipment shell 6, wet desulfurized saturated clean flue gas from the wet desulfurization system 1 exchanges heat with the working medium partitions circulating in the heat pipes 5 between the hot side part and the cold side part, so that the cooled and condensed wet flue gas and flue gas condensed water are formed. And collecting the separated flue gas condensate water, and using the collected flue gas condensate water as process water supplement of a desulfurization system for reusing in the desulfurization system. The heat pipe 5 adopts a thermosiphon, the working medium in the heat pipe is water, and the liquid filling amount is 65 percent.
In the water lifting process, the working medium in the heat pipe 5 comprises water, ammonia, R22, R134a, alcohol, acetone and the like. The cold side part selects air as a cooling medium, and the heat pipe 5 transfers the heat released by condensation to the atmosphere through the cold side part.
In the water lifting process, high-temperature saturated clean flue gas B of an upstream wet desulphurization system 1 exchanges heat with a working medium partition wall in the hot side of a heat pipe 5 in a condensation water lifting device 2, the temperature is reduced and condensed to form low-temperature saturated clean flue gas C, the low-temperature saturated clean flue gas C exchanges heat with a steam or hot water F partition wall in a flue gas reheater 4, and high-temperature unsaturated clean flue gas E is formed after reheating and is discharged from a chimney 3 through a flue.
In the water lifting process, the number of the heat pipes and the heat transfer area ratio of the cold side to the hot side can be adjusted, so that: the high-temperature saturated clean flue gas B at the outlet of the wet desulphurization system 1 has the temperature of 51.4 ℃ and the water vapor content of 14.3 percent and enters the flue gas water extraction equipment 2; after cooling, the temperature of the low-temperature saturated clean flue gas C is 50.0 ℃, the water vapor content is 13.3 percent, the low-temperature saturated clean flue gas leaves the flue gas water extraction device 2, enters the flue gas reheater 4 (if the low-temperature saturated clean flue gas C exists), is heated and heated to 21.4 ℃, the temperature of the reheated clean flue gas E reaches 71.4 ℃, the partial pressure of the water vapor in the flue gas is only 12.3kPa, and the low-temperature saturated clean flue gas belongs to unsaturated flue; the high-temperature unsaturated clean flue gas E is discharged through a chimney 3 to realize the condensation and recovery of water vapor in the saturated clean flue gas, and simultaneously realize the treatment of white smoke plume.
Pure flue gas flow 1187507Nm at 51.4 ℃ high temperature saturation3H, mass flow rate 1523.1 t/h; and the flow rate of the saturated net flue gas at the low temperature of 50.0 ℃ is 1174481Nm3H, mass flow rate 1512.6 t/h; the water recovery amount in the cooling condensation process is 10.5t/h, the pH value is 2-3, and a small amount of residual SO in clean flue gas is dissolved2And HCl and the like, and meets the water quality requirement of the water supplement of the desulfurization process; the recovered water accounts for 16.9 percent of the total process water consumption of the wet desulphurization system 1, namely the process water consumption of the wet desulphurization system 1 can be saved by 16.9 percent.
As shown in FIG. 4, the flue gas is sealed between the heat pipe 5 and the equipment shell 6 by using a sealing ring 7 or a conical line seal.
The invention recovers a large amount of condensed water from the desulfurized flue gas, and the low-temperature saturated clean flue gas enters the flue gas reheater (if any), so that the reheating temperature of the flue gas is greatly reduced due to the reduction of the flue gas amount and the reduction of the specific heat of the flue gas at the constant pressure, the heat required by the reheating of the flue gas is greatly reduced, the white smoke plume is effectively treated, and the visual pollution of the flue gas emission is improved, and the invention also has important significance.
Claims (11)
1. The desulfurization flue gas condensation water-lifting equipment is characterized by comprising an equipment shell (6) and a heat pipe (5); the heat pipe (5) comprises a cold side part and a hot side part, wherein the cold side part is arranged outside the shell (6), the hot side part is accommodated in the shell (6), and a working medium in the heat pipe circularly transfers heat between the hot side part and the cold side part; the upstream of the equipment shell (6) is connected with the wet desulphurization system (1), and the downstream is connected with the chimney (3).
2. The desulfurized flue gas condensed water extraction equipment according to claim 1, wherein the heat pipe (5) is a thermosiphon, and the filling amount of the working medium in the pipe is 65%.
3. The desulfurized flue gas condensed water extraction apparatus of claim 1 wherein said working medium is water, ammonia, R22, R134a, alcohol or acetone.
4. The desulfurized flue gas condensation water extraction device according to claim 1, wherein the material of the hot side part of the heat pipe can be selected from nickel-based alloys 2205 and 2507 or titanium, and the material of the cold side part can be selected from common carbon steel.
5. The desulfurized flue gas condensation water extraction plant according to claim 4, characterized in that a flue gas recuperator (4) is arranged between the housing (6) and the chimney (3).
6. The desulfurization flue gas condensation water extraction equipment of claim 1, characterized in that the heat pipe shape can be tubular, plate-like or adopt a separate heat pipe element.
7. The desulfurized flue gas condensation water extraction equipment according to claim 6, wherein the heat pipes (5) are arranged in a staggered manner, and the cold side part can adopt a finned pipe or a screwed pipe structure.
8. The desulfurized flue gas condensation water extraction equipment according to claim 1, wherein the heat pipe (5) and the equipment shell (6) are sealed by a sealing ring or a conical line.
9. The water lifting process of the desulfurization flue gas condensation water lifting device of claim 1 is characterized in that,
step 1, introducing wet desulphurization saturated clean flue gas of the wet desulphurization system (1) into a shell (6) of the desulphurization flue gas condensation water extraction equipment;
step 2, exchanging heat between the saturated clean flue gas and a working medium dividing wall circulating between a hot side part and a cold side part in the heat pipe (5) to cool and condense the saturated clean flue gas to form low-temperature saturated clean flue gas and flue gas condensed water;
step 3, discharging the low-temperature saturated clean flue gas through the chimney (3), collecting the flue gas condensate water, and using the collected flue gas condensate water as process water supplement water of a desulfurization system for reusing in the desulfurization system;
and 4, the heat pipe (5) transfers the heat released by condensation to the atmosphere through the cold side part.
10. The water lift process of claim 9, wherein air is selected as the cooling medium for the cold side portion.
11. The water lifting process according to claim 9, wherein in the step 3, the low-temperature saturated clean flue gas is further passed through a flue gas recuperator (4) before being discharged through the chimney (3), and exchanges heat with steam or hot water (F) partitions in the flue gas recuperator (4), and after being reheated, high-temperature unsaturated clean flue gas (E) is formed and is discharged from the chimney (3) through a flue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711178932.5A CN107982953A (en) | 2017-11-23 | 2017-11-23 | A kind of desulfurization fume condensation water lift equipment and its water lift technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711178932.5A CN107982953A (en) | 2017-11-23 | 2017-11-23 | A kind of desulfurization fume condensation water lift equipment and its water lift technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107982953A true CN107982953A (en) | 2018-05-04 |
Family
ID=62031884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711178932.5A Pending CN107982953A (en) | 2017-11-23 | 2017-11-23 | A kind of desulfurization fume condensation water lift equipment and its water lift technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107982953A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102716655A (en) * | 2012-06-20 | 2012-10-10 | 艾淑艳 | Water-saving system and water-saving process thereof used in wet desulfurization process |
| CN206310525U (en) * | 2016-12-21 | 2017-07-07 | 盐城清新环境技术有限公司 | Wet desulphurization neat stress recuperative system |
| CN207785983U (en) * | 2017-11-23 | 2018-08-31 | 北京清新环境技术股份有限公司 | A kind of desulfurization fume condensation water lift equipment |
-
2017
- 2017-11-23 CN CN201711178932.5A patent/CN107982953A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102716655A (en) * | 2012-06-20 | 2012-10-10 | 艾淑艳 | Water-saving system and water-saving process thereof used in wet desulfurization process |
| CN206310525U (en) * | 2016-12-21 | 2017-07-07 | 盐城清新环境技术有限公司 | Wet desulphurization neat stress recuperative system |
| CN207785983U (en) * | 2017-11-23 | 2018-08-31 | 北京清新环境技术股份有限公司 | A kind of desulfurization fume condensation water lift equipment |
Non-Patent Citations (1)
| Title |
|---|
| 顾丽莉: "化学与化工技术", 31 July 2007, 原子能出版社, pages: 313 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107860153B (en) | Energy-saving water-saving coal-fired boiler wet flue gas deep comprehensive treatment system and method | |
| CN101709879B (en) | System for deep cooling and waste heat recovery of smoke gas in boiler | |
| CN102734787B (en) | Concurrent recycling system for boiler smoke afterheat | |
| CN103062754B (en) | Power station machine furnace integrated cold end comprehensive optimization system | |
| CN106440465A (en) | Energy-saving type thermal power plant flue gas moisture recovering system | |
| CN104632304B (en) | A cooling system and method for recovering cooling water vapor | |
| JP2014509559A (en) | Exhaust extraction sludge drying system of boiler unit with heat compensation | |
| CN103398369A (en) | Method and system for comprehensive utilization of tail heat of boiler | |
| CN209635926U (en) | Falling film evaporation coupling absorption refrigeration high-salt sewage treatment equipment | |
| CN102980171A (en) | Economizer capable of recycling waste heat of flue in depth and concealing, desulfurizing and aspirating flue of coal-fired boiler | |
| CN101879379B (en) | A system and method for recycling lithium bromide to recover water from desulfurization system exhaust | |
| CN201892201U (en) | Two-level smoke heat exchanger system applied to thermal power plant | |
| CN207785983U (en) | A kind of desulfurization fume condensation water lift equipment | |
| CN107128993B (en) | Power plant flue gas waste heat direct evaporation type desalination system with flue gas reheating function | |
| CN103075217B (en) | Organic rankine-type industrial waste heat integrated recovery device | |
| CN112426853A (en) | Efficient composite flue gas moisture recovery system and method | |
| CN106989607A (en) | A kind of high-temperature flue gas waste heat recovery and advanced purification system | |
| CN111486467A (en) | A system and method for utilizing waste heat of flue gas to enhance efficiency of air cooling tower | |
| CN111595167A (en) | A system and method for recovering waste heat from industrial exhaust gas | |
| CN103990372B (en) | Ammonia-based carbon capture system with solar desalination assisted coal-fired power generation | |
| CN102512929A (en) | System and method for recycling water vapor and heat in desulfurization tail smoke | |
| CN202692016U (en) | Flue gas waste heat recovery system for concurrent boiler | |
| CN107982953A (en) | A kind of desulfurization fume condensation water lift equipment and its water lift technique | |
| CN202868667U (en) | Steam condensate liquid recovery device | |
| CN202074505U (en) | Heat-conducting oil furnace tial-gas waste heat heating condensed water device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |