CN217068380U - Flue gas purifying device - Google Patents
Flue gas purifying device Download PDFInfo
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- CN217068380U CN217068380U CN202220820823.9U CN202220820823U CN217068380U CN 217068380 U CN217068380 U CN 217068380U CN 202220820823 U CN202220820823 U CN 202220820823U CN 217068380 U CN217068380 U CN 217068380U
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- flue gas
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- cooled cooler
- dehumidifier
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Abstract
The utility model discloses a flue gas purification device, which belongs to the technical field of flue gas purification devices, and the technical proposal key points thereof comprise an SCR denitration device, wherein the left side of the SCR denitration device is communicated with a smoke inlet pipe, the upper end surface of the SCR denitration device is communicated with a first connecting pipe, the other end of the first connecting pipe is communicated with an air-cooled cooler, the outer side wall of the air-cooled cooler is communicated with a second connecting pipe, the other end of the second connecting pipe is communicated with a water-cooled cooler, the outer side wall of the water-cooled cooler is communicated with a third connecting pipe, the other end of the third connecting pipe is communicated with an alkali absorption tower, the right side of the alkali absorption tower is provided with a pulse dehumidifier, a fourth connecting pipe is communicated between the pulse dehumidifier and the alkali absorption tower, and the flue gas is purified by the SCR denitration device, the air-cooled cooler, the water-cooled cooler, the alkali absorption tower and the pulse dehumidifier, effectively remove pollutants such as sulfur dioxide, nitrogen oxide and particulate matters in the flue gas, and realize the standard emission of the flue gas.
Description
Technical Field
The utility model relates to a flue gas purification device technical field, in particular to flue gas purification device.
Background
Flue gas cleaning devices are used in conjunction with wood burners, wood burning stoves, open fireplaces, furnaces, stoves or wastelands for burning wood, smaller furnaces or boilers for biomass fuel or wood particles, and similar furnace systems, to reduce environmental pollution from flue gases.
However, when the existing flue gas purification device is used, the purification effect is not good, a large amount of harmful gas is left in the purified gas, and the practicability of the device is poor.
Disclosure of Invention
The utility model provides a to above problem, provide a gas cleaning device and solve above-mentioned problem.
The utility model discloses a realize like this, flue gas purification device, including SCR denitrification facility, SCR denitration device's left side intercommunication has into the tobacco pipe, SCR denitrification facility's up end intercommunication has first connecting pipe, the other end intercommunication of first connecting pipe has the forced air cooler, the lateral wall intercommunication of forced air cooler has the second connecting pipe, the other end intercommunication of second connecting pipe has the water-cooling cooler, the lateral wall intercommunication of water-cooling cooler has the third connecting pipe, the other end intercommunication of third connecting pipe has the alkali absorption tower, the right side of alkali absorption tower is provided with the pulse dehumidifier, the intercommunication has the fourth connecting pipe between pulse dehumidifier and the alkali absorption tower.
For the convenience of flue gas exhaust, as the utility model discloses a flue gas purification device is preferred, the place ahead of pulse dehumidifier has set gradually two draught fans and chimney, two after to before all the intercommunication has the sixth connecting pipe between draught fan and the chimney, the up end intercommunication of pulse dehumidifier has the fifth connecting pipe, and the fifth connecting pipe passes through pipeline and two draught fans intercommunication.
In order to facilitate the addition of urea solution, as the utility model discloses a flue gas purification device is preferred, the top of advancing the tobacco pipe is provided with the urea solution case, the urea solution case with advance the intercommunication between the tobacco pipe and have the shower.
In order to improve purification efficiency, as the utility model discloses a flue gas purification device is preferred, SCR denitrification facility's right side is run through and is installed the mixed wind fan.
In order to accelerate the flow speed of the flue gas, as the utility model discloses a flue gas purification device is preferred, the spray pump is installed to the lateral wall of third connecting pipe.
Compared with the prior art, the beneficial effects of the utility model are that:
the flue gas purification device is provided with the SCR denitration device to denitrate flue gas, effectively remove NOx in the flue gas, the flue gas after the denitration process is finished enters the inside of an air-cooled cooler through a first connecting pipe, and then the flue gas is preliminarily cooled through the air-cooled cooler, the cooled flue gas enters the inside of a water-cooled cooler through a second connecting pipe, so that the flue gas is further cooled through the water-cooled cooler, the cooling effect of the device is improved, the cooled flue gas enters an alkali absorption tower through a third connecting pipe, acid gas in the flue gas is removed through the alkali absorption tower, finally the flue gas enters a pulse dehumidifier through a fourth connecting pipe, so that gas-liquid separation is carried out through the pulse dehumidifier, and the flue gas passes through the purification treatment of the SCR denitration device, the air-cooled cooler, the water-cooled cooler, the alkali absorption tower and the pulse dehumidifier, effectively remove pollutants such as sulfur dioxide, nitrogen oxide and particulate matters in the flue gas, and realize the standard emission of the flue gas.
Drawings
FIG. 1 is a structural diagram of a flue gas purification device of the present invention;
fig. 2 is a side view of the flue gas purification device of the present invention.
In the figure, 1, an SCR denitration device; 101. a smoke inlet pipe; 102. a urea solution tank; 103. a shower pipe; 104. a first connecting pipe; 2. an air-cooled cooler; 201. a second connecting pipe; 3. a water-cooled cooler; 301. a third connecting pipe; 4. an alkali absorption tower; 401. a fourth connecting pipe; 5. a mixed air fan; 6. a spray pump; 7. a pulse dehumidifier; 701. a fifth connecting pipe; 8. an induced draft fan; 801. a sixth connecting pipe; 9. and (4) a chimney.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those 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 addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1-2, the flue gas purification device includes an SCR denitration device 1, a flue gas inlet pipe 101 is communicated with the left side of the SCR denitration device, a first connecting pipe 104 is communicated with the upper end surface of the SCR denitration device 1, the other end of the first connecting pipe 104 is communicated with an air-cooled cooler 2, the outer side wall of the air-cooled cooler 2 is communicated with a second connecting pipe 201, the other end of the second connecting pipe 201 is communicated with a water-cooled cooler 3, the outer side wall of the water-cooled cooler 3 is communicated with a third connecting pipe 301, the other end of the third connecting pipe 301 is communicated with an alkali absorption tower 4, a pulse dehumidifier 7 is arranged on the right side of the alkali absorption tower 4, and a fourth connecting pipe 401 is communicated between the pulse dehumidifier 7 and the alkali absorption tower 4.
In this embodiment: by arranging the SCR denitration device 1, denitration treatment is carried out on flue gas, NOx in the flue gas is effectively removed, the flue gas after the denitration process is finished enters the interior of the air-cooled cooler 2 through the first connecting pipe 104, and then the flue gas is primarily cooled through the air-cooled cooler 2, the cooled flue gas enters the interior of the water-cooled cooler 3 through the second connecting pipe 201, so that the flue gas is further cooled through the water-cooled cooler 3, the cooling effect of the device is improved, the cooled flue gas enters the alkali absorption tower 4 through the third connecting pipe 301, acid gas in the flue gas is removed through the alkali absorption tower 4, finally the flue gas enters the pulse dehumidifier 7 through the fourth connecting pipe 401, gas-liquid separation is carried out through the pulse dehumidifier 7, and the flue gas passes through the SCR denitration device 1, the air-cooled cooler 2, the water-cooled cooler 3, the alkali absorption tower 4 and the pulse dehumidifier 7 for purification treatment, effectively remove pollutants such as sulfur dioxide, nitrogen oxide and particulate matters in the flue gas, and realize the standard emission of the flue gas.
As the utility model discloses a technical optimization scheme, the place ahead of pulse dehumidifier 7 has set gradually two draught fans 8 and chimney 9 from the back to the front, and it has sixth connecting pipe 801 all to communicate between two draught fans 8 and the chimney 9, and the up end intercommunication of pulse dehumidifier 7 has fifth connecting pipe 701, and fifth connecting pipe 701 passes through the pipeline and communicates with two draught fans 8.
In this embodiment: the gas after the purification is finished is discharged through a fifth connecting pipe 701, a sixth connecting pipe 801 and a chimney 9 under the action of the induced draft fan 8, and the smoke discharge efficiency is improved by arranging the induced draft fan 8.
As a technical optimization scheme of the utility model, the urea solution tank 102 is arranged above the smoke inlet pipe 101, and the spray pipe 103 is communicated between the urea solution tank 102 and the smoke inlet pipe 101.
In this embodiment: through setting up urea solution case 102 and shower 103, and then be convenient for the staff to the advancing tobacco pipe 101 and add urea solution.
As a technical optimization scheme of the utility model, the right side of SCR denitrification facility 1 is run through and is installed mixed wind fan 5.
In this embodiment: through setting up air mixing fan 5 for the flue gas velocity of flowing improves flue gas purification efficiency.
As a technical optimization scheme of the utility model, spray pump 6 is installed to the lateral wall of third connecting pipe 301.
In this embodiment: through setting up spray pump 6, carry the flue gas, and then accelerate the flow velocity of flue gas in third connecting pipe 301.
The utility model discloses a theory of operation and use flow: when the device is used, the flue gas is introduced into the SCR denitration device 1 through the flue gas inlet pipe 101, the urea solution is sprayed into the flue gas inlet pipe 101 through the urea solution box 102 and the spray pipe 103, the urea is decomposed into ammonia gas by utilizing the heat of the flue gas, the flue gas and the ammonia gas are mixed and enter the SCR denitration device 1, and at the moment, the ammonia gas is used as a reducing agent to reduce NOx in the flue gas into N under the action of a catalyst 2 And H 2 O，NH 3 Does not neutralize residual O in the flue gas 2 Flue gas after reaction and NOx removalThe temperature is still high, the flue gas enters an alkali absorption tower 4 after being cooled by an air cooling cooler 2 and a water cooling cooler 3, and the alkali absorption tower 4 mainly removes a small amount of acid gases such as sulfur dioxide and the like in the flue gas; cooled flue gas rises from the bottom of an alkali absorption tower 4 to the top through each filler gap, sodium hydroxide solution enters from the upper part of the tower, and gradually flows downwards on the surface of the filler, the flue gas is in continuous countercurrent contact with absorption liquid, acid gas in the flue gas is gradually absorbed by alkali liquor, when the pH value of the alkali liquor is reduced to 6, part of the alkali liquor is discharged, fresh alkali liquor (with the concentration of 3% -5%) is added, then the flue gas enters a pulse dehumidifier 7 through a fourth connecting pipe 401 for gas-liquid separation, and finally an induced draft fan 8 pumps the flue gas into a chimney 9 through a fifth connecting pipe 701 and a sixth connecting pipe 801, and finally the flue gas is discharged from the chimney 9.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. A flue gas cleaning device, comprising: SCR denitrification facility (1), SCR denitration device's left side intercommunication has into tobacco pipe (101), the up end intercommunication of SCR denitrification facility (1) has first connecting pipe (104), the other end intercommunication of first connecting pipe (104) has air-cooled cooler (2), the lateral wall intercommunication of air-cooled cooler (2) has second connecting pipe (201), the other end intercommunication of second connecting pipe (201) has water-cooled cooler (3), the lateral wall intercommunication of water-cooled cooler (3) has third connecting pipe (301), the other end intercommunication of third connecting pipe (301) has alkali absorption tower (4), the right side of alkali absorption tower (4) is provided with pulse dehumidifier (7), the intercommunication has fourth connecting pipe (401) between pulse dehumidifier (7) and alkali absorption tower (4).
2. The flue gas purification device according to claim 1, wherein: the place ahead of pulse dehumidifier (7) has set gradually two draught fans (8) and chimney (9) from back to front, two all communicate between draught fan (8) and chimney (9) has sixth connecting pipe (801), the up end intercommunication of pulse dehumidifier (7) has fifth connecting pipe (701), and fifth connecting pipe (701) pass through pipeline and two draught fans (8) intercommunication.
3. The flue gas purification device according to claim 1, wherein: a urea solution tank (102) is arranged above the smoke inlet pipe (101), and a spraying pipe (103) is communicated between the urea solution tank (102) and the smoke inlet pipe (101).
4. The flue gas purification device according to claim 1, wherein: and the right side of the SCR denitration device (1) is provided with an air mixing fan (5) in a penetrating way.
5. The flue gas purification device according to claim 1, wherein: and a spray pump (6) is installed on the outer side wall of the third connecting pipe (301).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220820823.9U CN217068380U (en) | 2022-04-11 | 2022-04-11 | Flue gas purifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220820823.9U CN217068380U (en) | 2022-04-11 | 2022-04-11 | Flue gas purifying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217068380U true CN217068380U (en) | 2022-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220820823.9U Active CN217068380U (en) | 2022-04-11 | 2022-04-11 | Flue gas purifying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217068380U (en) |
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2022
- 2022-04-11 CN CN202220820823.9U patent/CN217068380U/en active Active
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