CN211676943U - Wet flue gas desulfurization white-removing device - Google Patents
Wet flue gas desulfurization white-removing device Download PDFInfo
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- CN211676943U CN211676943U CN201922357966.1U CN201922357966U CN211676943U CN 211676943 U CN211676943 U CN 211676943U CN 201922357966 U CN201922357966 U CN 201922357966U CN 211676943 U CN211676943 U CN 211676943U
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Abstract
The utility model discloses a wet flue gas desulfurization white device that takes off, including the flue gas white tower that takes off, interior chimney and outer chimney, the outside of chimney including the lower part cover of outer chimney is established, the top of outer chimney is provided with the emission outlet, the downside that the flue gas takes off the white tower is provided with the flue gas import, the below of flue gas import is provided with the comdenstion water collecting vat, the comdenstion water collecting vat is connected with the outlet, the flue gas takes off the white tower and is provided with baffle and last baffle down in the top spaced of flue gas import, the fixed a plurality of condensation tube bundles that are provided with between baffle and the last baffle down, the inner wall of flue gas white tower that takes off, the outer wall of condensation tube bundle, baffle and last baffle four enclose synthetic heat transfer chamber down, one side of heat transfer chamber is. The utility model discloses flue gas dust concentration and flue gas water content in can effectual reduction plume, it is effectual to take off whitewashed, utilizes the natural wind after the inside heat transfer of system to carry out exhaust gas's intensification, need not to use extra electrical heating equipment, and is very energy-conserving.
Description
Technical Field
The utility model relates to an environmental protection equipment technical field especially relates to a wet flue gas desulfurization takes off white device.
Background
At present, most of domestic smoke of coal-fired power plants, steel plants or other chemical industries is subjected to wet desulphurization before being discharged, the temperature of the smoke is reduced to 45-55 ℃, the smoke at the moment is usually saturated wet smoke and contains a large amount of water vapor, the water vapor contains more soluble salts, SO3, gel dust, micro dust and the like (all main components of haze), if the smoke is directly discharged from a chimney and enters ambient air with lower temperature, the water vapor in the smoke can be condensed to form wet smoke plume in the process of reducing the temperature of the smoke because the saturation humidity of the ambient air is lower, SO that the atmosphere is not only visual but also substantially polluted, and therefore the smoke plume needs to be whitened.
The existing smoke plume de-whitening process mainly comprises the following steps: the flue gas cooling before desulfurization, saturated wet flue gas condensation after desulfurization, unsaturated wet flue gas reheating after desulfurization and chimney exhaust, the desulfurization raw flue gas cooler is installed in the flue in front of the desulfurization tower, the flue gas is cooled to a proper temperature, the saturated wet flue gas condenser after desulfurization is installed in the flue at the outlet of the desulfurization tower by adopting a tube nest which is communicated with cooling water, as the cooling water is communicated in a heat exchange tube, the flue gas vapor is condensed and separated out, the wrapped flue dust and gypsum particles are condensed and gathered, the concentration of the flue gas dust is reduced, the water content of the flue gas is eliminated, the unsaturated wet flue gas reheater after desulfurization is installed in the flue behind the flue gas condenser at the outlet of the desulfurization and in front of the chimney, the flue gas after desulfurization is heated by using a heating medium, and the temperature requirement on the.
The condensation of saturated wet flue gas after desulfurization determines the condensation separation effect of flue gas vapor, and is an important link of a smoke plume de-whitening system, the flue gas dust concentration and the flue gas water content of the existing smoke plume de-whitening device are higher, the energy consumption of the smoke reheating is large, and the smoke degassing and the energy saving are all to be enhanced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to avoid the shortcomings of the prior art and provide a wet desulphurization flue gas de-whitening device, thereby effectively solving the shortcomings existing in the prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a wet desulphurization flue gas whitening device comprises a flue gas whitening tower, wherein the top of the flue gas whitening tower is sequentially communicated with an inner chimney and an outer chimney, the lower part of the outer chimney is covered on the outer side of the inner chimney, a discharge outlet is arranged at the top of the outer chimney, a flue gas inlet is arranged at the lower side of the flue gas whitening tower, a condensate collecting tank is arranged below the flue gas inlet and is connected with a water discharge outlet, the flue gas whitening tower is provided with a lower partition plate and an upper partition plate at intervals above the flue gas inlet, a plurality of condensing tube bundles are fixedly arranged between the lower partition plate and the upper partition plate, the lower end opening of the condensing tube bundles is communicated with the flue gas inlet, the upper end opening of the condensing tube bundles is communicated with the inner chimney, a heat exchange cavity is enclosed by the inner wall of the flue gas whitening tower, the outer wall of the condensing tube bundles, the lower partition plate and the upper, the other side of the heat exchange cavity is communicated with the bottom of the outer chimney through a second pipeline;
the heat exchange fins are arranged on the outer wall of the condensation tube bundle, and the cyclone is arranged on the inner side of the condensation tube bundle.
Furthermore, an included angle is formed between the bottom wall of the condensed water collecting tank and the horizontal plane, and the water outlet is formed in the lowest point of the condensed water collecting tank.
Furthermore, an air flow uniform distribution device is arranged between the flue gas inlet and the lower partition plate.
Further, the airflow uniform distribution device is a grating plate which is obliquely arranged.
Furthermore, the included angle between the grating plate and the horizontal plane is 8-15 degrees.
Further, a plurality of cyclones are arranged in the condensation tube bundle.
Further, the method is simple. And an air mixer is arranged in the outer chimney.
The above technical scheme of the utility model following beneficial effect has: the utility model discloses flue gas dust concentration and flue gas water content in can effectual reduction plume, it is effectual to take off whitewashed, utilizes the natural wind after the inside heat transfer of system to carry out exhaust gas's intensification moreover, need not to use extra electrical heating equipment, and is very energy-conserving.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
fig. 3 is a schematic structural diagram of a swirler according to an embodiment of the present invention;
fig. 4 is a schematic view of a partial structure according to an embodiment of the present invention.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1-4, the wet desulfurization flue gas whitening device described in this embodiment includes a flue gas whitening tower 1, the top of the flue gas whitening tower 1 is sequentially communicated with an inner chimney 2 and an outer chimney 3, the lower portion of the outer chimney 3 is covered outside the inner chimney 2, the top of the outer chimney 3 is provided with a discharge outlet 4, the lower side of the flue gas whitening tower 1 is provided with a flue gas inlet 5, the flue gas inlet 5 is connected with an outlet of the desulfurization tower through a pipeline, a condensed water collecting tank 6 is arranged below the flue gas inlet 5, the condensed water collecting tank 6 is connected with a water discharge outlet 7, the water discharge outlet 7 is connected with a water recovery system of a plant area through a pipeline, a lower partition plate 8 and an upper partition plate 9 are arranged above the flue gas inlet 5 of the flue gas whitening tower 1 at intervals, a plurality of condensing tube bundles 10 are fixedly arranged between the lower partition plate 8 and the upper partition plate 9, an upper end opening 10b of the condensation tube bundle 10 is communicated with the inner chimney 2, the inner wall of the smoke white-removing tower 1, the outer wall of the condensation tube bundle 10, the lower partition plate 8 and the upper partition plate 9 enclose a heat exchange cavity 11, one side of the heat exchange cavity 11 is connected with an induced draft fan 13 through a first pipeline 12, a valve is arranged on the first pipeline 12, and the other side of the heat exchange cavity 11 is communicated with the bottom of the outer chimney 3 through a second pipeline 14.
As shown in figure 1, the top of the flue gas whiting tower 1 is conical, the conical top is communicated with the inner chimney 2, the inner chimney 2 is cylindrical, the middle part of the outer chimney 3 is of a cylindrical structure matched with the inner chimney 2, and an annular air cavity 17 is arranged between the outer chimney 3 and the inner chimney 2.
Preferably, the induced draft fan 13 is a variable frequency fan, and can set working frequency according to atmospheric environment temperature and adjust natural air volume so as to achieve the purpose of energy conservation.
As shown in fig. 2, be provided with heat transfer fin 10c on the outer wall of condensation tube bank 10, heat transfer fin 10c is used for increasing heat exchange efficiency, the inboard of condensation tube bank 10 is provided with swirler 15, swirler 15's structure is as shown in fig. 3, condensation tube bank 10's axis department is provided with connecting rod 10d, the bottom fixed connection of screw and condensation tube bank 10 is passed through to connecting rod 10 d's bottom, swirler 15 suit is on connecting rod 10d, and swirler 15's the outside sets up with condensation tube bank 10's inner wall laminating, swirler 15 can be connected through gluing with connecting rod 10d, modes such as screw connection.
A plurality of cyclones 15 are provided within the condenser tube bundle 10.
An included angle is formed between the bottom wall of the condensate collecting tank 6 and the horizontal plane, the water outlet 7 is arranged at the lowest point of the condensate collecting tank 6, and a valve is arranged at the water outlet 7.
An airflow uniform distribution device 16 is arranged between the flue gas inlet 5 and the lower partition plate 8, the airflow uniform distribution device 16 is a grating plate which is obliquely arranged, and when airflow passes through, the airflow uniform distribution device 16 ensures that the airflow entering each condensation tube bundle is as uniform as possible.
The included angle between the grating plate and the horizontal plane is 8-15 degrees.
An air mixer 18 is arranged in the outer chimney 3, and the air mixer 18 can adopt an axial flow fan or a structure similar to the cyclone.
The utility model discloses a theory of operation does: saturated wet flue gas desulfurized by a desulfurizing tower enters a condensation tube bundle 10 from a flue gas inlet 5 through an airflow uniform distribution device 16, meanwhile, natural wind is blown into a heat exchange cavity 11 by an induced draft fan 13, the natural wind exchanges heat with the condensation tube bundle 10, a condensation pipeline 10 is cooled, the natural wind is heated, the heated natural wind then enters the bottom of an outer chimney 3, a cyclone 15 in the condensation tube bundle 10 is used for throwing dust-containing water mist onto the inner wall of the condensation tube bundle 10 through high-speed rotation by utilizing centrifugal force to form rotationally-rising airflow, the dust-containing water mist in the airflow contacts the condensation tube bundle to form dust-containing liquid drops, the dust-containing liquid drops flow downwards along the surface of the condensation tube bundle to play a role of removing dust by a liquid film, the concentration and the water content of the flue gas can be reduced, and condensed water flows into a condensed water collecting tank 6 to realize recovery; the clean airflow without dust-containing liquid drops further flows upwards into the inner chimney 2, the natural wind heated by the condensing tube bundle 10 plays a role in heating the inner chimney 2 in the process of rising in the annular wind cavity 17, the airflow in the inner chimney 2 can play a role in preheating, then the airflow in the inner chimney 2 and the heated natural wind are mixed at the wind mixer 18, the water vapor in the mixed gas is in an unsaturated state, and the air cannot be condensed in the process of diffusion in the natural environment, so that the white fog is thoroughly eliminated, and the effect is greatly superior to the emission standard wanted by the country.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (7)
1. The utility model provides a wet flue gas desulfurization takes off white device which characterized in that: comprises a flue gas whiting tower, the top of the flue gas whiting tower is sequentially communicated with an inner chimney and an outer chimney, the lower part of the outer chimney is covered on the outer side of the inner chimney, the top of the outer chimney is provided with a discharge outlet, a flue gas inlet is arranged at the lower side of the flue gas whiting tower, a condensate collecting tank is arranged below the flue gas inlet and is connected with a water outlet, a lower partition plate and an upper partition plate are arranged above the flue gas inlet at intervals in the flue gas whiting tower, a plurality of condensing tube bundles are fixedly arranged between the lower partition plate and the upper partition plate, the lower end openings of the condensing tube bundles are communicated with the flue gas inlet, the upper end openings of the condensing tube bundles are communicated with the inner chimney, the inner wall of the flue gas whiting tower, the outer wall of the condensing tube bundle, the lower clapboard and the upper clapboard are enclosed to form a heat exchange cavity, one side of the heat exchange cavity is connected with an induced draft fan through a first pipeline, and the other side of the heat exchange cavity is communicated with the bottom of the outer chimney through a second pipeline;
the heat exchange fins are arranged on the outer wall of the condensation tube bundle, and the cyclone is arranged on the inner side of the condensation tube bundle.
2. The wet desulfurization flue gas whitening device according to claim 1, characterized in that: the bottom wall of the condensate collecting tank and the horizontal plane are arranged in an included angle mode, and the water outlet is formed in the lowest point of the condensate collecting tank.
3. The wet desulfurization flue gas whitening device according to claim 1, characterized in that: and an air flow uniform distribution device is arranged between the flue gas inlet and the lower partition plate.
4. The wet desulfurization flue gas whitening apparatus according to claim 3, characterized in that: the airflow uniform distribution device is a grating plate which is obliquely arranged.
5. The wet desulfurization flue gas de-whitening device according to claim 4, characterized in that: the included angle between the grating plate and the horizontal plane is 8-15 degrees.
6. The wet desulfurization flue gas whitening device according to claim 1, characterized in that: and a plurality of cyclones are arranged in the condensation tube bundle.
7. The wet desulfurization flue gas whitening device according to claim 1, characterized in that: and an air mixer is arranged in the outer chimney.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922357966.1U CN211676943U (en) | 2019-12-25 | 2019-12-25 | Wet flue gas desulfurization white-removing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922357966.1U CN211676943U (en) | 2019-12-25 | 2019-12-25 | Wet flue gas desulfurization white-removing device |
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| CN211676943U true CN211676943U (en) | 2020-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922357966.1U Active CN211676943U (en) | 2019-12-25 | 2019-12-25 | Wet flue gas desulfurization white-removing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113864806A (en) * | 2021-09-30 | 2021-12-31 | 南京工业大学 | Cyclone type flue gas dedusting, demisting and white elimination integrated chimney and method |
| CN117771900A (en) * | 2024-02-01 | 2024-03-29 | 绍兴恒辉节能科技有限公司 | Industrial waste gas tail end whitening equipment and waste gas treatment process |
-
2019
- 2019-12-25 CN CN201922357966.1U patent/CN211676943U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113864806A (en) * | 2021-09-30 | 2021-12-31 | 南京工业大学 | Cyclone type flue gas dedusting, demisting and white elimination integrated chimney and method |
| CN117771900A (en) * | 2024-02-01 | 2024-03-29 | 绍兴恒辉节能科技有限公司 | Industrial waste gas tail end whitening equipment and waste gas treatment process |
| CN117771900B (en) * | 2024-02-01 | 2024-06-07 | 绍兴恒辉节能科技有限公司 | Industrial waste gas tail end whitening equipment and waste gas treatment process |
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