CN202303424U - Flue gas heating system - Google Patents
Flue gas heating system Download PDFInfo
- Publication number
- CN202303424U CN202303424U CN2011204206594U CN201120420659U CN202303424U CN 202303424 U CN202303424 U CN 202303424U CN 2011204206594 U CN2011204206594 U CN 2011204206594U CN 201120420659 U CN201120420659 U CN 201120420659U CN 202303424 U CN202303424 U CN 202303424U
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- CN
- China
- Prior art keywords
- flue gas
- htr10
- working medium
- condenser
- evaporimeter
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to a flue gas heating system which comprises a flue gas lead-out cylinder at the outlet of a desulfurization absorption tower, wherein a sleeve-type condenser is sleeved out of the flue gas lead-out cylinder, and is internally filled with an HTR10 (high temperature gas cooled reactor 10) working medium; the upper end of the sleeve-type condenser is provided with an HTR10 working medium lead-in port, and the lower end of the sleeve-type condenser is provided with an HTR10 working medium lead-out port; the HTR10 lead-in port is connected with an evaporator through a gas compressor; and the HTR10 working medium lead-out port is connected with the evaporator through an expansion valve. According to the utility model, the flue gas resistance is not increased, and service power is saved; the flue gas is smooth, and ash is not blocked; and the heat load of a cooling tower is reduced, the cold efficiency is increased, and the heat efficiency of the machine set is improved.
Description
Technical field
The utility model relates to a kind of flue gas heating system, and especially a kind of HTR10 working medium characteristic of utilizing absorbs the system that carries out flue gas heating through the heat of the recirculated water of condenser.
Background technology
Along with after country issues " thermal power plant's atmosphere pollutants emission standards "; The most wet type desulfurizing systems that adopt of large thermal power plant; Wherein there is the chimney etching problem in great majority, and it has caused how each side, solve the chimney anticorrosion problem as early as possible if particularly fully paying attention to power plant operation side; Each genco convenes relevant scientific research and designing unit, studies the various treatment measures that can implement.The scheme that proposes to recover to adopt flue gas heat exchange device (being GGH) is wherein also arranged; But power plant's operating experience explanation in the past; The GGH scheme consumes the station service except increasing flue gas 1000Pa resistance, air-introduced machine and GGH more, and it is also very undesired to move, and exists stifled ash, corrosion and source flue gas to problems such as clean smoke spillages.How to combine power plant's actual conditions, explore a kind of better processing scheme, currently become a kind of objective demand.
Summary of the invention
The purpose of the utility model is for overcoming the deficiency of above-mentioned prior art, provide a kind of simple in structure, is beneficial to flue gas flow field and distributes, and reduces the extent of corrosion of flue gas to chimney, and the flue gas heating system that the thermal efficiency of unit is increased.
For realizing above-mentioned purpose, the utility model adopts following technical proposals:
A kind of flue gas heating system; Comprise desulfuration absorbing tower outlet flue gas derivation tube, outside flue gas is derived tube, be with telescopic condenser, HTR10 working medium is arranged in the telescopic condenser; HTR10 working medium introducing port is established in the upper end of telescopic condenser; HTR10 working medium export mouth is established in the lower end, and HTR10 working medium introducing port links to each other with evaporimeter through compressor, and HTR10 working medium export mouth links to each other with evaporimeter through expansion valve.
Described evaporimeter seals in the condenser water circulation system, and evaporimeter can be established bypass.
Described water heating circulation system is made up of condenser, water circulating pump, cooling tower and evaporimeter polyphone.
Described flue gas is derived tube in chimney.
Said flue gas heating system utilizes HTR10 working medium, absorbs the recirculated water heat through condenser, and HTR10 working medium becomes gaseous state by liquid state.The gaseous state HTR10 working medium of coming out from evaporimeter is then boosted through the compressor compression, and temperature also increases.Get into the telescopic condenser in the chimney again, heat is passed to the flue gas that come out by desulfuration absorbing tower, thereby improve flue-gas temperature, reduce the extent of corrosion of flue gas chimney; And high temperature HTR10 working medium discharges after the latent heat of vaporization by the gaseous state liquefy, after multi-level throttle and expansion valve step-down, gets into evaporimeter, gets into next time cyclic process again.
The flue gas heating system of the utility model makes full use of HTR10 working medium characteristic and carries out heat exchange, flue-gas temperature is exported 50 ℃ from the desulfurization absorption tower bring up to 70-80 ℃, increases the rising height of flue gas at chimney outlet, reduces flue dust, SO
2With the maximum flooring concentration of NOx, help environmental protection; Make full use of the chimney space and telescopic condenser highly is set, simple in structure feasible; Chimney adopts common acid-resistant steel material, avoids the use of expensive composite titanium steel plate; Do not increase flue gas resistance, save station service; Flue gas is smooth, not stifled ash; Reduced the thermic load of cooling tower, improved its cold effect, the thermal efficiency of unit is slightly improved.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Wherein: 1. Turbo-generator Set, 2. condenser, 3. water circulating pump, 4. cooling tower, 5. desulfuration absorbing tower, 6. chimney, 7. telescopic condenser, 8. compressor, 9. evaporimeter, 10. expansion valve, 11. flue gases are derived tube.
The specific embodiment
A kind of flue gas heating system; Comprise flue gas derivation tube 11, outside flue gas is derived tube 11, be with telescopic condenser 7, in the telescopic condenser 7 HTR10 working medium is arranged; HTR10 working medium introducing port is established in the upper end of telescopic condenser 7; HTR10 working medium export mouth is established in the lower end, and HTR10 working medium introducing port links to each other with evaporimeter 9 through compressor 8, and HTR10 working medium export mouth links to each other with evaporimeter 9 through expansion valve 10.
Described evaporimeter 9 seals in the condenser water circulation system.
Described water circulation system is made up of with evaporimeter 9 polyphones condenser 2, water circulating pump 3, cooling tower 4.
Described flue gas is derived tube 11 in chimney 6.
The flue gas heating system utilizes HTR10 working medium, absorbs the recirculated water heat through condenser 2, and HTR10 working medium becomes gaseous state by liquid state.The gaseous state HTR10 working medium of coming out from evaporimeter 9 is then boosted through compressor 8 compressions, and temperature also increases.Get into the telescopic condenser 7 in the chimney 6 again, heat is passed to the flue gas that come out by desulfuration absorbing tower 5, thereby improve flue-gas temperature, reduce the extent of corrosion of flue gas chimney; And the HTR10 high temperature refrigerant discharges after the latent heat of vaporization by the gaseous state liquefy, and entering evaporimeter 9 after multi-level throttle and expansion valve 10 step-downs gets into next time cyclic process again.
Claims (4)
1. a flue gas heating system comprises desulfuration absorbing tower outlet flue gas derivation tube, it is characterized in that;, flue gas is with telescopic condenser outside deriving tube; HTR10 working medium is arranged in the telescopic condenser, and HTR10 working medium introducing port is established in the upper end of telescopic condenser, and HTR10 working medium export mouth is established in the lower end; HTR10 working medium introducing port links to each other with evaporimeter through compressor, and HTR10 working medium export mouth links to each other with evaporimeter through expansion valve.
2. flue gas heating according to claim 1 system is characterized in that described evaporimeter seals in the condenser water circulation system.
3. flue gas heating according to claim 2 system is characterized in that, described water circulation system is made up of condenser, water circulating pump, cooling tower and evaporimeter polyphone.
4. flue gas heating according to claim 1 system is characterized in that, described flue gas is derived tube in chimney.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204206594U CN202303424U (en) | 2011-10-28 | 2011-10-28 | Flue gas heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204206594U CN202303424U (en) | 2011-10-28 | 2011-10-28 | Flue gas heating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202303424U true CN202303424U (en) | 2012-07-04 |
Family
ID=46372311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204206594U Expired - Lifetime CN202303424U (en) | 2011-10-28 | 2011-10-28 | Flue gas heating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202303424U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154553A (en) * | 2013-11-27 | 2014-11-19 | 北京大学工学院包头研究院 | Flue gas treatment device |
| CN104154552A (en) * | 2013-11-27 | 2014-11-19 | 北京大学工学院包头研究院 | Flue gas treatment device |
-
2011
- 2011-10-28 CN CN2011204206594U patent/CN202303424U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154553A (en) * | 2013-11-27 | 2014-11-19 | 北京大学工学院包头研究院 | Flue gas treatment device |
| CN104154552A (en) * | 2013-11-27 | 2014-11-19 | 北京大学工学院包头研究院 | Flue gas treatment device |
| CN104154553B (en) * | 2013-11-27 | 2018-07-03 | 北京大学包头创新研究院 | A kind of flue gas processing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120704 |
|
| CX01 | Expiry of patent term |