CN201603514U - Raw gas temperature reducing device used for seawater desulfurization system - Google Patents
Raw gas temperature reducing device used for seawater desulfurization system Download PDFInfo
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- CN201603514U CN201603514U CN2010201135643U CN201020113564U CN201603514U CN 201603514 U CN201603514 U CN 201603514U CN 2010201135643 U CN2010201135643 U CN 2010201135643U CN 201020113564 U CN201020113564 U CN 201020113564U CN 201603514 U CN201603514 U CN 201603514U
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- flue gas
- heating power
- seawater
- power pipe
- flue
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Abstract
The utility model discloses a raw gas temperature reducing device used for a seawater desulfurization system, which is arranged at the flue at the entrance of an absorption tower and consists of a plurality of thermal pipes horizontally arranged and internally provided with liquid working medium and a water circulation system, wherein the heated section of each thermal pipe is arranged in the flue, and the cooling section thereof is arranged in the water circulation system. The device has the advantages of being capable of replacing the temperature reducing function of the original flue gas heat exchanger, needing no transmission equipment, improving system reliability, reducing maintenance work, having more stable operation, and being safe and reliable, energy-saving, and environment-friendly.
Description
Technical field
The utility model relates to the flue gas desulfurization technique field, especially relates to a kind of former flue gas cool-down device that is used for the flue gas desulfurization with seawater system.
Background technology
At present, the sulfur removal technology that adopted of fire coal or fuel oil power station roughly has desulfurization (desulfuration in furnace) and flue gas desulfurization in desulfurization before the burning, the burning in the world.Wherein seawater method sulfur removal technology is a flue gas desulfurization technique behind a kind of advanced technology, technical maturity, the simple stove of operation, and desulfuration efficiency reaches more than 90%.This technology generally be applicable to by seashore, diffusion conditions better, with seawater as cooling water, use the beach power plant of sulfur content less than 1% low-sulfur coal.
Typical desulfuration of flue gas by sea water technology is to utilize the desulfur technology of the natural alkalescence absorption sulfur in smoke of full sea water.The cardinal principle of this technology is: the flue gas that enters the absorption tower after sending into the seawater on absorption tower and cooling off through the flue gas heat exchange device contacts mixing, sulfur in smoke (SO
2) with seawater in alkaline absorbent composition generation chemical reaction, generate sulfite ion SO
3 2-With hydrogen ion H
+, seawater pH value is declined to become acid seawater; Flue gas after the desulfurization enters atmosphere through chimney after demister is removed droplet.The acid seawater that discharge on the absorption tower enters the aeration tank of Seawater Treatment factory, with a large amount of sea water mixing that have neither part nor lot in desulphurization reaction, and blasts a large amount of air, makes unsettled sulfite ion SO
3 2-With airborne oxygen O
2Reaction generates stable sulfate ion SO
4 2-, enter the sea with seawater, thereby reach the purpose of desulfurization.The a large amount of air that blast in the aeration tank have also quickened carbon dioxide CO
2Generation disengage, and make the pH value of seawater and dissolved oxygen content return to the normal level that allows discharging.
The chemical principle of this technology is as follows:
SO
2+H
2O→2H
++SO
3 2-
SO
3 2-+1/2O
2→SO
4 2-
CO
3 2-+H
+→HCO
3 -
HCO
3 -+H
+→CO
2+H
2O
The seawater desulfurizing process system mainly comprises: flue gas system, SO
2Absorption system, seawater supply system, seawater quality recover (aeration) system, fresh water (FW) system, cooling water system, compressed air system.Capital equipment comprises: absorption tower, spraying layer (packing layer), aeration tank, Aeration fan, sea water booster pump etc.
Above-mentioned technology maturation, use morely, its technology core is SO
2Absorb and seawater quality recovery (aeration) system, wherein one of most important core is SO
2The design of absorption system.
In order to reach and guarantee the desulfuration efficiency on absorption tower, the flue-gas temperature that must will enter the absorption tower is reduced to below the saturation temperature (dew point).Prior art Central Plains flue gas cool-down device uses flue gas (gas-gas type) heat exchanger more, and this gas-gas heat exchange equipment needs rotating machinery to drive, the poor stability of corresponding system, and maintenance workload is bigger.
Summary of the invention
The purpose of this utility model provides a kind of more energy-conservation former flue gas cool-down device that is used for Deuslfurizing system for sea water.
Technical solution of the present utility model is: a kind of former flue gas cool-down device that is used for Deuslfurizing system for sea water, be arranged on the flue place of absorption tower inlet, its by some horizontally disposed and in establish liquid refrigerant heating power pipe and water circulation system, wherein the heating section of every heating power pipe places in the described flue, and cooling section places in the water circulation system.
Because the heating section of heating power pipe is positioned at flue, its inner liquid refrigerant can absorb the interior former flue gas heat of flue and the boiling that heats up, cooling section is positioned at water circulation system, its inner liquid refrigerant can transmit heat and the condensation of lowering the temperature to circulation, because the heating power tubular horizontal is arranged, liquid refrigerant evaporation back increased pressure after being heated, liquid refrigerant air pressure after the cooling reduces, therefore in the heating power pipe, change the circulation of formation nature owing to pressure reduction, need not the power-equipment transmission, and water circulation system also can be isolated mutually with flue, and the direct impact of the flue gas that is not heated moves more stable.
Described heating power pipe is the vacuum tube that vacuumizes in the housing, vacuumizes the speed that can improve working medium circulation in pipe, helps accelerating heat transfer rate, further raises the efficiency.
Described heating power pipe is the glass tube of outer plating enamel, and is easy to process.
Described heating power pipe outer wall is provided with fin, can effectively increase the heat transfer area of heating power pipe, improves heat transfer efficiency.
The utility model has the advantages that: can substitute the cooling effect of original flue gas heat exchange device, need not drive apparatus, improve the reliability of system, reduce maintenance work, move more steady, safe and reliable, energy-conserving and environment-protective.
Description of drawings
Accompanying drawing 1 is the related flue gas desulfurization with seawater process diagram of the utility model embodiment;
Accompanying drawing 2 is the structure diagram of the utility model embodiment;
Accompanying drawing 3 is the fundamental diagram of heating power pipe among the utility model embodiment;
1, deduster, 2, air-introduced machine, 3, chimney, 4, desulfurization booster fan, 5, heating power tubular type water circulation preheater, 6, the absorption tower, 7, seawater booster pump, 8, water intaking pond before the pump, 9, siphonic water-collecting well, 10, Aeration fan, 11, discharge outlet, 12, the aeration tank, 13, flue, 14, heating section, 15, cooling section, 16, housing, 17, fin, 18, working medium.
The specific embodiment
Consult Fig. 1, process diagram for the suitable flue gas desulfurization with seawater system of the heating power tubular type water circulation preheater of the utility model embodiment, wherein behind the former flue gas process deduster 1 (static or cloth-bag type) and air-introduced machine 2 that boiler comes, entering desulfurization booster fan 4 boosts, enter 5 coolings of heating power tubular type water circulation preheater, flue gas after the cooling advances absorption tower 6 desulfurization, and the clean flue gas after the processing is arranged to atmosphere through chimney 3.
Fetch water before the pump that is arranged in unit recirculated water draining siphonic water-collecting well 9 as the seawater of desulfurization absorbent and to take out the pond 8, squeeze into absorption tower 6 after boosting by seawater booster pump 7 and contact with flue gas, and with flue gas in SO
2Reaction removes SO
2Seawater after the desulfurization enters aeration tank 12, blasts the seawater of air after to desulfurization by Aeration fan 10 and 12 carries out aeration in the aeration tank, and the seawater after aeration is handled enters the sea by discharge outlet 11.
Consult Fig. 2, heating power tubular type water circulation preheater 5 is arranged on flue 13 places of absorption tower 6 inlets, its heating power pipe by water circulation system and some horizontally disposed and built-in liquid refrigerants 18 is formed, the heating section 14 of every heating power pipe places in the flue 13, and cooling section 15 places in the water circulation system of preheater.
Consult Fig. 3, the heating power pipe is made up of housing 16 and working medium 18, vacuumizes in its middle shell 16, and present embodiment middle shell 16 selects for use the glass tube of outer plating enamel to make.The housing 16 outer fins 17 that are provided with.Working medium 18 can be chosen water.
Working medium 18 in the heating section 14 absorbs the heat of flue gas fluid, explosive evaporation, pressure raises, steam enters cooling section 15 places under differential pressure action, condensation behind the recirculated water that the heat transferred pipe is outer is back to heating section 14 places, through repeatedly circulation, just constantly heat is passed to recirculated water by flue gas, finish the heating of recirculated water.
Water circulation system can be water supply system, hot-water heating system or municipal heating systems water system.
Above-listed detailed description is specifying at one of the utility model possible embodiments, this embodiment is not in order to limit claim of the present utility model, allly do not break away from the equivalence that the utility model does and implement or change, all should be contained in the claim of this case.
Claims (4)
1. former flue gas cool-down device that is used for Deuslfurizing system for sea water, be arranged on the flue place of absorption tower inlet, it is characterized in that: its by some horizontally disposed and in establish liquid refrigerant heating power pipe and water circulation system form, wherein the heating section of every heating power pipe places in the described flue, and cooling section places in the water circulation system.
2. a kind of former flue gas cool-down device that is used for Deuslfurizing system for sea water according to claim 1, it is characterized in that: described heating power pipe is the vacuum tube that vacuumizes in the housing.
3. a kind of former flue gas cool-down device that is used for Deuslfurizing system for sea water according to claim 2 is characterized in that: described heating power pipe is the glass tube of outer plating enamel.
4. according to claim 1,2 or 3 described a kind of former flue gas cool-down devices that are used for Deuslfurizing system for sea water, it is characterized in that: described heating power pipe outer wall is provided with fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201135643U CN201603514U (en) | 2010-02-05 | 2010-02-05 | Raw gas temperature reducing device used for seawater desulfurization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201135643U CN201603514U (en) | 2010-02-05 | 2010-02-05 | Raw gas temperature reducing device used for seawater desulfurization system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201603514U true CN201603514U (en) | 2010-10-13 |
Family
ID=42948224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201135643U Expired - Fee Related CN201603514U (en) | 2010-02-05 | 2010-02-05 | Raw gas temperature reducing device used for seawater desulfurization system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201603514U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102784555A (en) * | 2012-08-19 | 2012-11-21 | 浙江海洋学院 | Method for strengthening seawater desulphurization by sodium fulvic acid |
| CN103691279A (en) * | 2013-12-13 | 2014-04-02 | 江苏大学 | System and method for desulfurization and denitrification by high temperature activating of sodium persulfate through flue gas afterheat |
-
2010
- 2010-02-05 CN CN2010201135643U patent/CN201603514U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102784555A (en) * | 2012-08-19 | 2012-11-21 | 浙江海洋学院 | Method for strengthening seawater desulphurization by sodium fulvic acid |
| CN103691279A (en) * | 2013-12-13 | 2014-04-02 | 江苏大学 | System and method for desulfurization and denitrification by high temperature activating of sodium persulfate through flue gas afterheat |
| CN103691279B (en) * | 2013-12-13 | 2015-12-02 | 江苏大学 | Utilize the system of the desulphurization denitration of fume afterheat high-temperature activation sodium peroxydisulfate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC Free format text: FORMER NAME: GUANGDONG ELECTRIC POWER DESIGN INSTITUTE |
|
| CP03 | Change of name, title or address |
Address after: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Patentee after: Guangdong Electric Power Design Institute of CEEC Address before: 510600 No. 846 Dongfeng East Road, Guangzhou, Guangdong, Yuexiu District Patentee before: Guangdong Electric Power Design Institute |
|
| C56 | Change in the name or address of the patentee |
Owner name: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC Free format text: FORMER NAME: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC POWER DESIGN INSTITUTE |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Patentee after: Company limited of China Energy Engineering Group Guangdong Electric Power Design Institute Address before: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Patentee before: Guangdong Electric Power Design Institute of CEEC |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101013 Termination date: 20170205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |