CN2907849Y - Smoke purification by wet method - Google Patents
Smoke purification by wet method Download PDFInfo
- Publication number
- CN2907849Y CN2907849Y CN 200520115743 CN200520115743U CN2907849Y CN 2907849 Y CN2907849 Y CN 2907849Y CN 200520115743 CN200520115743 CN 200520115743 CN 200520115743 U CN200520115743 U CN 200520115743U CN 2907849 Y CN2907849 Y CN 2907849Y
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- smoke
- collecting tank
- heat exchanger
- gas
- utility
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Abstract
The utility model relates to a smoke desulfurizing technique, in particular to a smoke wet method purifying device for dust removing and desulfurizing which matches with the coal (oil)-burning furnace in a large power plant. The utility model is characterized in that a heat exchanging device is arranged for heat exchanging between the high-temperature smoke to be treated and the exhausted smoke, and aims at designing a smoke wet method purifying device for increasing the smoke exhaust temperature after being treated. Compared with the prior art, the utility model has the advantages of high efficiency of dust removing and desulfurizing, clear effect of energy saving, compact structure, and convenient utilization, and completely solves the eroding problem of the downstream devices.
Description
Technical field
The utility model relates to flue gas desulfurization technique, the wet fume purifier of the dust-removal and desulfurizing that particularly a kind of and big power station's fire coal (oil) boiler is supporting.
Background technology
The particularly flue gas desulfurization technique fast development of China's fire coal (oil) boiler both at home and abroad in recent years is for flue gas desulfurization provides many processes.Relatively, the technology of wet desulphurization is still a kind of reliable main separation direction, and it is implementing in service accounting for about 87%.
In wet dedusting desulfurization technology, because flue gas will contain a large amount of saturated steams and a spot of sulfur dioxide (300mg/m with after absorption liquid fully contacts in the flue gas after the processing
3), temperature is about 55～65 ℃.In discharge process, increase along with the blowdown stack height, flue-gas temperature reduces gradually, analysing of saturated steam in the flue gas separated, the part water generates will be arranged, can generate sulfurous acid or sulfuric acid with a spot of sulfur dioxide in the flue gas, it has serious corrosivity, therefore the flue-gas temperature after occurring handling is low, water capacity produces the problem of corrosion, the corrosion that particularly causes draught fan impeller, flue and chimney etc. to be located greatly to upstream device.This is the insoluble problem that exists in the present wet dedusting desulfurization engineering.
Summary of the invention
The purpose of this utility model is a kind of wet fume purifier that can improve processing back smog discharge temperature of design.
In order to achieve the above object, the utility model adopts following technical solution: a kind of wet fume purifier, comprise absorption reactor thermally, collecting tank, gas microexplosion device, remove and wash one's hair device, washer, wherein absorption reactor thermally comprises nozzle, circulating pump, circulating pump is connected nozzle with collecting tank, it is characterized in that being provided with graphite heat exchanger at the front end place of adsorption tower smoke exhaust outlet, the shell side two ends of graphite heat exchanger are connected on the main stem of fume emission, and the tube side two ends of graphite heat exchanger are connected between smoke inlet to be clean and the absorption reactor thermally inlet.
Because after utilizing pending high-temperature flue gas and the mutual heat exchange of the low-temperature flue gas after the desulfurization, reduced the temperature of pending flue gas on the one hand, improved the efficient of dust-removal and desulfurizing, improved the smog discharge temperature after the desulfurization on the other hand again, but about outlet flue gas temperature raising to 80 ℃, avoid the dew point of sulfur trioxide, the flue gas after the processing can utilize the chimney with general antiseptic property to discharge, solve the etching problem of back trip equipment fully, and at utmost saved the consumption of outer thermal source.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described in further detail.
Fig. 1 is the structural representation of present embodiment.
Fig. 2 is Fig. 1 right view.
The specific embodiment
As Fig. 1, shown in Figure 2, present embodiment comprises absorption reactor thermally (11), purify comprehensive tower (10), wherein absorption reactor thermally (11) comprises nozzle (12), circulating pump (1), in purifying comprehensive tower (10), concentrate and include collecting tank (2), gas microexplosion device (3), remove and wash one's hair device (6), washer (5) and graphite heat exchanger (8), be located at collecting tank (4) top except that washing one's hair device (6), be provided with gas-liquid separation band (4) between them, washer (5) is located at and removes the below of washing one's hair device (6), graphite heat exchanger (8) is located to remove and washes one's hair between device (6) top and the fume emission outlet (9), the shell side of graphite heat exchanger (13) two ends are connected on the main stem of fume emission, and tube side (7) two ends of graphite heat exchanger (8) are connected between smoke inlet to be clean and absorption reactor thermally (1) inlet.Circulating pump (1) is connected nozzle (12) with collecting tank (2), absorption reactor thermally (11) lower end outlet is connected with collecting tank (3) in the purification comprehensive tower (10).
Flue gas to be clean is after the graphite heat exchanger tube side enters the graphite heat exchanger heat exchange, its temperature 140 ℃ when entering are reduced to 110 ℃, circulating pump (3) upwards sprays the absorbent in the collecting tank (4) with absorbent through nozzle (3) simultaneously, carry out reverse turbulent flow bump desulfurization with absorbent with the flue gas that comes out from the graphite heat exchanger pipe absorption reactor thermally, absorbent falls and enters the collecting tank storage and carries out the reciprocation cycle use.Flue gas after the bump desulfurization is overflowed from the liquid collecting of collecting tank, along with the tower cross section increases, velocity of flue gas falls slowly, gas-liquid separation band above collecting tank carries out preliminary sedimentation separation, to further foam removal of demister (6), the shell side by heat exchanger carries out heat exchange with the flue gas to be clean that enters tube side more then, and the flue-gas temperature after the heat exchange is about 80 ℃, derive by absorption tower outlet, through flue to the chimney of discharging fume.
When chevron shaped demister uses for a long time, regularly open washer and chevron shaped demister is cleaned with the high pressure clear water.
In sum, the utility model compared with prior art has the following advantages:
1, owing to before desulfurization, treat earlier the temperature of smoke treatment and lower the temperature, improved and removed The dirt desulfuration efficiency.
2, because the smog discharge temperature after the desulfurization reaches about 80 ℃, avoid the dew point of sulfur trioxide, Flue gas after the processing can utilize the chimney with general antiseptic property to discharge, after having solved fully The etching problem of trip equipment, and the consumption of at utmost saving outer thermal source.
3, since the technical program with collecting tank, gas microexplosion device, except washing one's hair device, washer, changing Hot device all devices is integrated in one, and compact conformation is easy to operate.
4, because heat-exchanger rig adopts graphite heat exchanger, in light weight, good effect of heat exchange, and rotproofness is strong, is adapted to respectively change in the desulfurization process different work condition environments fully.
Claims (3)
1, a kind of wet fume purifier, comprise absorption reactor thermally (1), collecting tank (2), gas microexplosion device (3), remove and wash one's hair device (6), washer (5), wherein absorption reactor thermally (11) comprises nozzle (12), circulating pump (1), circulating pump (3) is connected nozzle (12) with collecting tank (2), it is characterized in that being provided with graphite heat exchanger (8) at the front end place of fume emission outlet (9), the shell side of graphite heat exchanger (13) two ends are connected on the main stem of fume emission, and the tube side of graphite heat exchanger (7) two ends are connected between smoke inlet to be clean and absorption reactor thermally (11) inlet.
2, wet fume purifier according to claim 1, it is characterized in that collecting tank (2), gas microexplosion device (3), remove wash one's hair device (6), washer (5) is concentrated to be arranged on and is purified in the comprehensive tower (10).
3, wet fume purifier according to claim 2 is characterized in that collecting tank (2) top and removes to wash one's hair being provided with gas-liquid separation band (4) between the device (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520115743 CN2907849Y (en) | 2005-10-24 | 2005-10-24 | Smoke purification by wet method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520115743 CN2907849Y (en) | 2005-10-24 | 2005-10-24 | Smoke purification by wet method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2907849Y true CN2907849Y (en) | 2007-06-06 |
Family
ID=38127061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520115743 Expired - Lifetime CN2907849Y (en) | 2005-10-24 | 2005-10-24 | Smoke purification by wet method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2907849Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100398185C (en) * | 2005-10-24 | 2008-07-02 | 温州市双屿防腐设备制造公司 | Wet fume purifier |
-
2005
- 2005-10-24 CN CN 200520115743 patent/CN2907849Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100398185C (en) * | 2005-10-24 | 2008-07-02 | 温州市双屿防腐设备制造公司 | Wet fume purifier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20080702 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |