CN202270477U - Single-tower wet-ammonia-process desulphurization system - Google Patents
Single-tower wet-ammonia-process desulphurization system Download PDFInfo
- Publication number
- CN202270477U CN202270477U CN2011204114959U CN201120411495U CN202270477U CN 202270477 U CN202270477 U CN 202270477U CN 2011204114959 U CN2011204114959 U CN 2011204114959U CN 201120411495 U CN201120411495 U CN 201120411495U CN 202270477 U CN202270477 U CN 202270477U
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- tower
- pipe
- pump
- ammonia
- desulphurization system
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Abstract
The utility model relates to a single-tower wet-ammonia-process desulphurization system, which comprises a concentrated solution conveying pipe for conveying from a concentrated pump to a concentration section of a desulphurization tower, and a absorbing liquid conveying pipe for conveying from an absorbing pump to an absorbing section of the desulphurization tower, wherein a communicating pipe is arranged between the concentrated solution conveying pipe and the absorbing liquid conveying pipe. According to the single-tower wet-ammonia-process desulphurization system, no material-depositing condition at the positions of internal tower parts such as a spraying pipe at the top part of the concentration section and a bracket and the like is ensured, the occurrence of the accident that the desulphurization system is stopped is avoided and the qualified emission of flue gas (sulfur dioxide) exhausted to the outside is ensured.
Description
Technical field:
The utility model relates to a kind of desulphurization system, particularly single tower hygrometric state ammonia method desulfurizing system.
Background technology:
Single tower hygrometric state ammonia method desulfurizing system adopts two centrifugal pumps to carry out reverse absorbing contacting, concentrated independent circular flow pattern to absorber portion, enriching section spray circulation fluid and flue gas respectively; The basic process of its operation is that the one-level circulation fluid send absorber portion and boiler smoke to carry out reverse convection current absorption sulfur dioxide wherein after the absorbent recirculation pump supercharging; Form ammonium sulfite and ammonium bisulfite and be back to overflow to secondary circulating slot behind the one-level groove after oxidation forms ammonium sulfate, this mother liquor is supplemented to the desulfurizing tower enriching section after concentrating the circulating pump supercharging carries out carrying out Separation of Solid and Liquid after evaporate to dryness concentrates the formation ammonia sulfate crystal.
Mainly there is following problem in present desulphurization system:
1. after concentration stage circulation pressurization, spray to the ammonium sulfate of enriching section through the high-temperature flue gas evaporate to dryness easily enriching section shower, brace summer, etc. the position gather the effect that ammonia sulfate crystal, long-play can influence the permeability of desulfurizing tower and reduce the cigarette temperature; Can destroy the obstruction that the bottom anticorrosive coat can cause the enriching section underflow opening on the other hand on the one hand when falling after the bulk buildup comes off simultaneously, the compelled parking after the normal Recycling Mother Solution of destruction system to the enriching section bottom.
2, because in the normal course of operation; Ammonium sulfate liquor contains more ammonium sulfate solids, and is bigger to concentrating the circulating pump wearing and tearing, and this circulating pump maintenance is comparatively frequent; Flue gas must be moved back circulating pump being carried out in the maintenance process desulphurization system, the qualified discharge of sulfur dioxide can't be reached.
Summary of the invention:
The purpose of the utility model is the deficiency that overcomes prior art, and a kind of new single tower hygrometric state ammonia method desulfurizing system is provided.
The technical scheme that the utility model is taked is:
Single tower hygrometric state ammonia method desulfurizing system, comprise from concentrating pump be transported to the desulfurizing tower enriching section the concentrated solution carrier pipe, be transported to the absorption liquid carrier pipe of desulfurizing tower absorber portion from absorption pump, establish communicating pipe between concentrated solution carrier pipe and absorption liquid carrier pipe.
Establish control valve on described communicating pipe.
The beneficial effect of the utility model technology:
1, increased the secondary internal circulating load of enriching section through this transformation on the one hand, guaranteed the buildup situation that do not occur of tower internals positions such as enriching section top spray pipe, support, enriching section flue gas flow rate assurance enriching section is even, stable does manual work thereby reduce.
2, occur under the unusual situation in the secondary circulatory system; System sprays fluid infusion to the enriching section liquid supplementation pipe to enriching section through the one-level circulation fluid; Play the purpose of absorbing sulfur dioxide when keeping enriching section tower temperature; Avoid the generation of desulphurization system parking accident, guarantee the qualified discharging of discharged gas fume sulfur dioxide.
Description of drawings
Fig. 1 is the prior art structure chart;
Fig. 2 is the structure chart of the utility model;
Wherein: 1. desulfurizing tower, 2. absorber portion, 3. enriching section, 4. oxidation panel, 5. concentrating pump, 6. absorption pump 7. rises gas cap, 8. absorber portion shower nozzle, 9. control valve, 10. communicating pipe.
The specific embodiment
Single tower hygrometric state ammonia method desulfurizing system, comprise from concentrating pump 5 be transported to desulfurizing tower 1 enriching section 3 the concentrated solution carrier pipe, be transported to the absorption liquid carrier pipe of desulfurizing tower 1 absorber portion 2 from absorption pump 6, establish communicating pipe 10 between concentrated solution carrier pipe and absorption liquid carrier pipe.
Establish control valve 9 on described communicating pipe 10.
The configuration pipeline is connected to enriching section fluid infusion pipeline concentrating pump with the absorption pump outlet, concentrate is from secondary groove end, and absorption liquid makes the I and II circulation fluid reach interconnective state from one-level groove end.
Claims (2)
1. single tower hygrometric state ammonia method desulfurizing system; Comprise from concentrating pump and be transported to the concentrated solution carrier pipe of desulfurizing tower enriching section, be transported to the absorption liquid carrier pipe of desulfurizing tower absorber portion from absorption pump; It is characterized in that, establish communicating pipe between concentrated solution carrier pipe and absorption liquid carrier pipe.
2. single tower hygrometric state ammonia method desulfurizing system according to claim 1 is characterized in that, establishes control valve on described communicating pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204114959U CN202270477U (en) | 2011-10-25 | 2011-10-25 | Single-tower wet-ammonia-process desulphurization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204114959U CN202270477U (en) | 2011-10-25 | 2011-10-25 | Single-tower wet-ammonia-process desulphurization system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202270477U true CN202270477U (en) | 2012-06-13 |
Family
ID=46190868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204114959U Expired - Fee Related CN202270477U (en) | 2011-10-25 | 2011-10-25 | Single-tower wet-ammonia-process desulphurization system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202270477U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105126589A (en) * | 2015-09-16 | 2015-12-09 | 鲁西化工集团股份有限公司动力分公司 | Ammonia desulfurization equipment and process |
-
2011
- 2011-10-25 CN CN2011204114959U patent/CN202270477U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105126589A (en) * | 2015-09-16 | 2015-12-09 | 鲁西化工集团股份有限公司动力分公司 | Ammonia desulfurization equipment and process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120613 Termination date: 20131025 |