CN215138570U - Device for absorbing and washing flue gas containing sulfur trioxide in three spraying modes - Google Patents
Device for absorbing and washing flue gas containing sulfur trioxide in three spraying modes Download PDFInfo
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- CN215138570U CN215138570U CN202121336647.3U CN202121336647U CN215138570U CN 215138570 U CN215138570 U CN 215138570U CN 202121336647 U CN202121336647 U CN 202121336647U CN 215138570 U CN215138570 U CN 215138570U
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Abstract
The utility model relates to a sulfur trioxide flue gas washing absorbing device technical field is a device that three kinds of modes of spraying jointly absorb washing contain sulfur trioxide flue gas, including scrubber, storage tank, first spray thrower, J type second spray thrower and third spray thrower, the left side import top-down of scrubber fixed mounting has first admission line and second admission line in proper order, and the top fixed mounting of first admission line has first spray thrower, and the fixed intercommunication in top of first spray thrower has the admission line. The utility model discloses a combined use of first spray thrower, J type second spray thrower and third spray thrower realizes absorption, the washing of sulfur trioxide flue gas, its rational in infrastructure and compact, convenient to use can practice thrift the cost, the washing effect is good, sulfur trioxide absorption rate in the sulfur trioxide flue gas reaches more than 99.5%, sulfur trioxide has guaranteed product quality to the corruption of follow-up process carbon steel equipment, pipeline in the reduction flue gas, has safety, laborsaving, simple and convenient, efficient characteristics.
Description
Technical Field
The utility model relates to a sulfur trioxide flue gas washing absorbing device technical field is a device that the washing contains sulfur trioxide flue gas is jointly absorbed to three kinds of modes that spray.
Background
In the original washing tower process flow, the flue gas containing sulfur trioxide enters from the tower kettle of the washing tower to be contacted and washed with the circulating liquid which is downward in the tower upwards to remove the sulfur trioxide in the flue gas containing sulfur trioxide, and when H in the circulating liquid2SO4When the content is higher, can process industry water and dilute, when the scrubbing tower liquid level is higher, accessible circulating pump export pipeline is sent to underground tank and is neutralized, and this technology is relatively poor to sulfur trioxide's absorption effect. The sulfur trioxide content at the outlet of the tower top is high, so that carbon steel equipment and pipelines in the subsequent process are corroded, and the product quality is influenced. The prior washing tower only adopts single-stage reverse spraying, has short gas-liquid contact time and poor absorption effect on sulfur trioxide, and still has poor absorption effect after washingA large amount of sulfur trioxide flue gas overflows and diffuses through an outlet of the washing tower, so that the air environment quality on site is poor.
Disclosure of Invention
The utility model provides a three kinds of modes of spraying jointly absorb device that washing contains sulfur trioxide flue gas, overcome above-mentioned prior art not enough, it can effectively solve ordinary scrubbing tower washing effect poor, and tower top export sulfur trioxide content is higher, corrodes subsequent handling carbon steel equipment, pipeline, influences product quality's problem.
The technical scheme of the utility model is realized through following measure: a device for absorbing and washing flue gas containing sulfur trioxide in a combined manner by three spraying modes comprises a washer, a storage tank, a first sprayer, a J-shaped second sprayer and a third sprayer, wherein a first air inlet pipeline and a second air inlet pipeline which are communicated with each other are sequentially and fixedly arranged at the inlet on the left side of the washer from top to bottom, the top of the first air inlet pipeline is fixedly provided with the first sprayer, the inlet on the top of the first sprayer is fixedly communicated with an air inlet pipeline, first inlet pipes, second inlet pipes, a third inlet pipe and a fourth inlet pipe are distributed on the first sprayer at intervals along the circumference, the first inlet pipes, the second inlet pipes, the third inlet pipes and the fourth inlet pipes are tangent to the side wall of the central axis, the J-shaped second sprayers with the outer diameters smaller than those of the first air inlet pipeline and the second air inlet pipeline are fixedly arranged inside the first air inlet pipeline and inside the second air inlet pipeline, the inner wall of the upper part of the washer is fixedly provided with the third sprayer, an exhaust pipeline is fixedly communicated with a top outlet of the washer, a first circulating pipeline is fixedly communicated between the bottom outlet of the washer and an upper inlet of the storage tank, a second circulating pipeline is fixedly communicated between the first circulating pipeline and an inlet of the J-shaped second sprayer, a drain pipeline is fixedly communicated with the first circulating pipeline between the bottom outlet of the washer and the second circulating pipeline, a first water supply pipeline is fixedly communicated with a top inlet of the storage tank, a second water supply pipeline is fixedly communicated between the first water supply pipeline and a middle inlet of the washer, a third circulating pipeline is fixedly communicated between the first circulating pipeline and an upper inlet of the washer, a first water inlet pipeline is fixedly communicated between a lower outlet of the storage tank and an upper inlet of the first air inlet pipeline, an overflow pipeline is fixedly communicated between the first water inlet pipeline and a middle outlet of the storage tank, and a first spray pipe is fixedly communicated between the first water inlet pipeline and the first air inlet pipeline And a second spraying pipeline is fixedly communicated between the first spraying pipeline and the second inlet pipe, a third spraying pipeline is fixedly communicated between the first spraying pipeline and the third inlet pipe between the second spraying pipeline and the first water inlet pipeline, and a fourth spraying pipeline is fixedly communicated between the third spraying pipeline and the fourth inlet pipe.
The following are further optimization or/and improvement of the technical scheme of the utility model:
the first sprayer is cylindrical, and flanges are respectively arranged at the upper end and the lower end of the first sprayer.
The top of the J-shaped second sprayer is provided with a spraying hole.
And a conveying pump is fixedly arranged on the first circulating pipeline between the bottom outlet of the washer and the third circulating pipeline.
The third sprayer is a circular coil pipe with a small hole at the bottom.
The utility model discloses a combined use of first spray thrower, J type second spray thrower and third spray thrower realizes absorption, the washing of sulfur trioxide flue gas, its rational in infrastructure and compact, convenient to use can practice thrift the cost, the washing effect is good, sulfur trioxide absorption rate in the sulfur trioxide flue gas reaches more than 99.5%, sulfur trioxide has guaranteed product quality to the corruption of follow-up process carbon steel equipment, pipeline in the reduction flue gas, has safety, laborsaving, simple and convenient, efficient characteristics.
Drawings
FIG. 1 is a process flow diagram of the present invention.
Fig. 2 is a schematic front view of the first sprayer.
Fig. 3 is a schematic front view of a second spray thrower of the J-type.
The codes in the figures are respectively: the device comprises a washer 1, a storage tank 2, a first sprayer 3, a J-shaped second sprayer 4, an air inlet pipeline 5, an exhaust pipeline 6, a first water inlet pipeline 7, an overflow pipeline 8, a first spray pipeline 9, a second spray pipeline 10, a third spray pipeline 11, a fourth spray pipeline 12, a third sprayer 13, a first water supply pipeline 14, a second water supply pipeline 15, a third circulation pipeline 16, a first circulation pipeline 17, a water discharge pipeline 18, a second circulation pipeline 19, a spray hole 20, a first inlet pipe 21, a second inlet pipe 22, a third inlet pipe 23, a fourth inlet pipe 24, a first air inlet pipeline 25 and a second air inlet pipeline 26.
Detailed Description
The utility model discloses do not receive the restriction of following embodiment, can be according to the utility model discloses a technical scheme and actual conditions determine concrete implementation.
In the present invention, for convenience of description, the description of the relative position relationship of the components is described according to the layout mode of the attached drawing 1 in the specification, such as: the positional relationship of front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of fig. 1 of the specification.
The invention will be further described with reference to the following examples and drawings:
as shown in the attached figure 1, the device for jointly absorbing and washing the sulfur trioxide-containing flue gas by three spraying modes comprises a washer 1, a storage tank 2, a first sprayer 3, a J-shaped second sprayer 4 and a third sprayer 13, wherein a first air inlet pipeline 25 and a second air inlet pipeline 26 which are mutually communicated are sequentially and fixedly installed at an inlet on the left side of the washer 1 from top to bottom, the first air inlet pipeline 25 is fixedly installed at the top of the first air inlet pipeline 25, an air inlet pipeline 5 is fixedly communicated with an inlet on the top of the first sprayer 3, a first inlet pipe 21, a second inlet pipe 22, a third inlet pipe 23 and a fourth inlet pipe 24 are circumferentially and alternately distributed on the first sprayer 3, the central axes of the first inlet pipe 21, the second inlet pipe 22, the third inlet pipe 23 and the fourth inlet pipe 24 are tangent to the side wall of the washer 3, the J-shaped second sprayer 4 with the outer diameter smaller than that of the first air inlet pipeline 25 and the second air inlet pipeline 26 is fixedly installed inside the first air inlet pipeline 25 and the second air inlet pipeline 26 are fixedly installed inside the first inlet pipeline 22, a third sprayer 13 is fixedly arranged on the inner wall of the upper part of the washer 1, an outlet at the top part of the washer 1 is fixedly communicated with an exhaust pipeline 6, a first circulating pipeline 17 is fixedly communicated between an outlet at the bottom part of the washer 1 and an inlet at the upper part of the storage tank 2, a second circulating pipeline 19 is fixedly communicated between the first circulating pipeline 17 and an inlet of the J-shaped second sprayer 4, a drain pipeline 18 is fixedly communicated on the first circulating pipeline 17 between the outlet at the bottom part of the washer 1 and the second circulating pipeline 19, a first water supply pipeline 14 is fixedly communicated with an inlet at the top part of the storage tank 2, a second water supply pipeline 15 is fixedly communicated between the first water supply pipeline 14 and an inlet at the middle part of the washer 1, a third circulating pipeline 16 is fixedly communicated between the first circulating pipeline 17 and the inlet at the upper part of the washer 1, a first water inlet pipeline 7 is fixedly communicated between an outlet at the lower part of the storage tank 2 and an inlet at the upper part of the first air inlet pipeline 25, an overflow pipeline 8 is fixedly communicated between the first water inlet pipeline 7 and the middle outlet of the storage tank 2, a first spray pipeline 9 is fixedly communicated between the first water inlet pipeline 7 and the first inlet pipe 21 between the overflow pipeline 8 and the upper inlet of the first air inlet pipeline 25, a second spray pipeline 10 is fixedly communicated between the first spray pipeline 9 and the second inlet pipe 22, a third spray pipeline 11 is fixedly communicated between the first spray pipeline 9 and the third inlet pipe 23 between the second spray pipeline 10 and the first water inlet pipeline 7, and a fourth spray pipeline 12 is fixedly communicated between the third spray pipeline 11 and the fourth inlet pipe 24.
In the utility model, the flue gas containing sulfur trioxide firstly passes through the first sprayer 3, and the absorption liquid is tangentially contacted with the flue gas containing sulfur trioxide through the first spraying pipeline 9, the second spraying pipeline 10, the third spraying pipeline 11 and the fourth spraying pipeline 12; then, the flue gas containing sulfur trioxide is reversely sprayed and absorbed by the J-shaped second sprayer 4, and finally is sprayed and absorbed from top to bottom by the third sprayer 13, and is jointly absorbed and washed by three spraying modes, so that the high-efficiency absorption of the sulfur trioxide flue gas is realized, the washing effect is good, the absorption rate of the sulfur trioxide in the sulfur trioxide flue gas reaches more than 99.5 percent, the corrosion of the sulfur trioxide in the flue gas to the carbon steel equipment and pipelines in the subsequent process is reduced, and the product quality is ensured.
According to needs, can install the pipeline booster pump on overflow line 8, improve the pressure of liquid in the pipeline, can improve the liquid velocity of flow, the reinforcing first spray thrower 3 spray the effect. First water inlet pipeline 7 also can play the supplementary effect that sprays when sulfur trioxide flue gas concentration is high, can increase the pipeline booster pump equally and improve the liquid velocity of flow on first water inlet pipeline 7, and the reinforcing sprays the effect.
As shown in fig. 1 and 2, the first sprayer 3 is cylindrical, and flanges are respectively provided at the upper end and the lower end of the first sprayer 3. The number of inlet pipe settings on first sparger 3 can be adjusted according to production needs. The first inlet pipe 21, the second inlet pipe 22, the third inlet pipe 23 and the fourth inlet pipe 24 are arranged on the same horizontal plane, so that the spraying effect can be better achieved, and the flue gas containing sulfur trioxide can better react with the flue gas. According to the needs, the pressure of the inlet of the first sprayer 3 can be increased to form better atomization effect and better absorption effect.
As shown in fig. 3, the top of the J-shaped second sprayer 4 is provided with a spray hole 20. The circulating liquid sprayed out of the J-shaped second sprayer 4 is fully contacted and washed with the flue gas containing sulfur trioxide to remove the sulfur trioxide in the flue gas containing sulfur trioxide. The aperture of the spray holes 20 can be flexibly adjusted according to the absorption effect of sulfur trioxide in the production process.
As shown in fig. 1, a transfer pump is fixedly installed on the first circulation line 17 between the bottom outlet of the scrubber 1 and the third circulation line 16. When H in the circulating liquid2SO4When the content is higher, can process industry water and dilute, when scrubber 1 liquid level is higher, accessible pump outlet drain line 18 sends to the underground tank and neutralizes, compares former technology and has improved sulfur trioxide's absorption effect greatly.
The third sprayer 13 is a circular coil with a small hole at the bottom, as required. The third sprayer 13 mainly functions to further absorb the incompletely absorbed sulfur trioxide, and the absorption rate of the sulfur trioxide reaches more than 99.5% after the three spraying modes are combined for absorption and washing.
Above technical feature constitutes the utility model discloses a best embodiment, it has stronger adaptability and best implementation effect, can increase and decrease unnecessary technical feature according to actual need, satisfies the demand of different situation.
The utility model discloses a use method:
before the flue gas containing sulfur trioxide enters the device through the air inlet pipeline 5, industrial water is firstly injected into the storage tank 2 and the washer 1 through the first water supply pipeline 14 and the second water supply pipeline 15, and after the industrial water with certain liquid levels is stored in the storage tank 2 and the washer 1, the first water supply pipeline 14 is closed; then, the transfer pump is turned on to transfer the industrial water in the scrubber 1 into the J-type second sprayer 4 and the third sprayer 13 through the third circulation line 16 and the second circulation line 19. The flue gas containing sulfur trioxide first passes through the first spray thrower 3, then through the second spray thrower 4, then through the third spray thrower 13 and out of the plant through the exhaust line 6. The industrial water continuously contacts with the flue gas containing sulfur trioxide to absorb the sulfur trioxide to form H in the industrial water2SO4When the concentration is high, the industrial water can be supplemented, and when the liquid level in the washer 1 is high, the industrial water is drained to an underground tank through a drainage pipeline 18 for neutralization.
Claims (8)
1. A device for absorbing and washing flue gas containing sulfur trioxide in a combined way by three spraying modes is characterized by comprising a washer, a storage tank, a first sprayer, a J-shaped second sprayer and a third sprayer, wherein a first air inlet pipeline and a second air inlet pipeline which are mutually communicated are sequentially and fixedly installed at an inlet on the left side of the washer from top to bottom, a first sprayer is fixedly installed at the top of the first air inlet pipeline, an air inlet pipeline is fixedly communicated with an inlet on the top of the first sprayer, first inlet pipes, second inlet pipes, a third inlet pipe and a fourth inlet pipe are circumferentially and alternately distributed on the first sprayer, the central axes of the first inlet pipe, the second inlet pipe, the third inlet pipe and the fourth inlet pipe are tangent to the side wall, the J-shaped second sprayer with the outer diameter smaller than that of the first air inlet pipeline and the second air inlet pipeline is fixedly installed inside the first air inlet pipeline and inside the second air inlet pipeline, a third sprayer is fixedly arranged on the inner wall of the upper part of the washer, an outlet at the top of the washer is fixedly communicated with an exhaust pipeline, a first circulating pipeline is fixedly communicated between an outlet at the bottom of the washer and an inlet at the upper part of the storage tank, a second circulating pipeline is fixedly communicated between the first circulating pipeline and an inlet of the J-shaped second sprayer, a drain pipeline is fixedly communicated on the first circulating pipeline between the outlet at the bottom of the washer and the second circulating pipeline, a first water supply pipeline is fixedly communicated with an inlet at the top of the storage tank, a second water supply pipeline is fixedly communicated between the first water supply pipeline and an inlet at the middle part of the washer, a third circulating pipeline is fixedly communicated between the first circulating pipeline and the inlet at the upper part of the washer, a first water inlet pipeline is fixedly communicated between an outlet at the lower part of the storage tank and an inlet at the upper part of the first water inlet pipeline, and an overflow pipeline is fixedly communicated between the first water inlet pipeline and an outlet at the middle part of the storage tank, a first water inlet pipeline between the overflow pipeline and an upper inlet of the first air inlet pipeline is fixedly communicated with a first inlet pipe to form a first spraying pipeline, a second spraying pipeline is fixedly communicated between the first spraying pipeline and a second inlet pipe, a third spraying pipeline is fixedly communicated between the first spraying pipeline and a third inlet pipe between the second spraying pipeline and the first water inlet pipeline, and a fourth spraying pipeline is fixedly communicated between the third spraying pipeline and a fourth inlet pipe.
2. The apparatus for absorbing and scrubbing flue gas containing sulfur trioxide according to claim 1, characterized in that the first sparger has a cylindrical shape, and flanges are respectively provided at the upper and lower ends of the first sparger.
3. The device for absorbing and washing flue gas containing sulfur trioxide by combining three spraying modes according to claim 1 or 2, characterized in that the top of the J-shaped second sprayer is provided with spraying holes.
4. The device for combined absorption washing of sulfur trioxide-containing flue gas by three spraying modes according to claim 1 or 2, characterized in that a transfer pump is fixedly mounted on the first circulation line between the bottom outlet of the scrubber and the third circulation line.
5. The apparatus for combined absorption scrubbing of flue gas containing sulfur trioxide according to claim 3, characterized in that a transfer pump is fixedly mounted on the first circulation line between the bottom outlet of the scrubber and the third circulation line.
6. The device for absorbing and washing the flue gas containing sulfur trioxide by combining the three spraying modes according to the claim 1, the claim 2 or the claim 5, characterized in that the third sprayer is a circular coil pipe with a small hole at the bottom.
7. The apparatus for absorbing and scrubbing flue gas containing sulfur trioxide according to claim 3, characterized in that the third sprayer is a circular coil with small holes at the bottom.
8. The apparatus for absorbing and scrubbing flue gas containing sulfur trioxide according to claim 4, characterized in that the third sprayer is a circular coil with small holes at the bottom.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121336647.3U CN215138570U (en) | 2021-06-16 | 2021-06-16 | Device for absorbing and washing flue gas containing sulfur trioxide in three spraying modes |
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| CN202121336647.3U CN215138570U (en) | 2021-06-16 | 2021-06-16 | Device for absorbing and washing flue gas containing sulfur trioxide in three spraying modes |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114395426A (en) * | 2022-01-10 | 2022-04-26 | 东华工程科技股份有限公司 | Improved coal gasification raw gas washing and separating system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114395426A (en) * | 2022-01-10 | 2022-04-26 | 东华工程科技股份有限公司 | Improved coal gasification raw gas washing and separating system |
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