CN218237477U - Flue gas treatment system - Google Patents
Flue gas treatment system Download PDFInfo
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- CN218237477U CN218237477U CN202222378287.4U CN202222378287U CN218237477U CN 218237477 U CN218237477 U CN 218237477U CN 202222378287 U CN202222378287 U CN 202222378287U CN 218237477 U CN218237477 U CN 218237477U
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- flue gas
- pipe
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Abstract
The utility model provides a flue gas processing system, including connecting the first flue gas trunk line that first flue gas emission source set up and connecting the second flue gas trunk line that second flue gas emission source set up, be equipped with first flue gas purification unit on the first flue gas trunk line, be equipped with second flue gas purification unit on the second flue gas trunk line, the body that lies in before the second flue gas purification unit on connecting body and the second flue gas trunk line that lie in before first flue gas purification unit on the first flue gas trunk line is equipped with and is used for making flue gas mix in first flue gas trunk line and the second flue gas trunk line, with the gas mixing unit that suppresses the flue gas pollutant content fluctuation in first flue gas trunk line and the second flue gas trunk line. The utility model discloses make the flue gas of difference carry out the partial exchange and mix, the fluctuation of pollutant in the flue gas alone has been restrained on the whole after the flue gas mixing to reduce the consumption of purifying agent.
Description
Technical Field
The utility model relates to a msw incineration gas cleaning technical field, concretely relates to flue gas processing system.
Background
The waste incineration power generation is popular with more and more people as a new waste treatment mode, and when the waste is incinerated, the generated heat energy is converted into electric energy for residents to use, so that the energy is fully utilized.
The in-process of msw incineration electricity generation can produce a large amount of flue gases, and general incineration factory all can set up the line of burning more than two to guarantee a line when overhauing, all the other lines of burning can continue work, when handling the flue gas now, in order to control NOx, SO in the flue gas 2 Can reach the discharge standard, often needs to add excessive purifying medicament into the flue gas of each incineration line to inhibit the wave crest caused by the fluctuation of pollutants, and mainly has complex garbage componentsComprises bamboo, plastic, paper, wet garbage, inorganic matters and the like, has large difference of calorific value and pollution elements of various substances and uneven mixing, and generates NOx and SO in the smoke generated by each burning line in the burning power generation process 2 And the original concentration of the pollutants fluctuates violently, the fluctuation range can exceed 50 percent at most, and the consumption of the purifying medicament is high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a flue gas processing system to solve the flue gas that the line was burnt now and purify the medicament problem in a large number because of the undulant great consumption that brings of pollutant.
The utility model discloses a reach the technical scheme that above-mentioned purpose adopted and be:
the utility model provides a flue gas processing system, including connecting the first flue gas trunk line that first flue gas emission source set up and connecting the second flue gas trunk line that second flue gas emission source set up, be equipped with first flue gas purification unit on the first flue gas trunk line, be equipped with second flue gas purification unit on the second flue gas trunk line, the body that lies in on the first flue gas trunk line before first flue gas purification unit and the body that lies in on the second flue gas trunk line before the second flue gas purification unit is equipped with and is used for making flue gas mix in first flue gas trunk line and the second flue gas trunk line, with the gas mixing unit that suppresses flue gas pollutant content fluctuation in first flue gas trunk line and the second flue gas trunk line.
As the utility model discloses an optimal scheme, mix the gas unit including connect first flue gas trunk line and second flue gas trunk line setting, and can send into the first exhaust tube in the second flue gas trunk line with flue gas in the first flue gas trunk line, be equipped with first fan on the first exhaust tube.
As a preferred scheme of the utility model, mix the gas unit still including connect second flue gas trunk line and first flue gas trunk line setting, and can send into the second exhaust tube in the first flue gas trunk line with flue gas in the second flue gas trunk line, be equipped with the second fan on the second exhaust tube.
As a preferred scheme of the utility model, on the flow direction of flue gas, first exhaust tube is less than 60 with the contained angle of first flue gas trunk line and second exhaust tube and second flue gas trunk line, and first exhaust tube is greater than 120 with the contained angle of second flue gas trunk line and second exhaust tube and first flue gas trunk line.
As the utility model discloses an optimal scheme, on the flow direction of flue gas, the intersection of first exhaust tube and first flue gas trunk line is located before the intersection of second exhaust tube and first flue gas trunk line, and the interval is not less than 1m, and the intersection of second exhaust tube and second flue gas trunk line is located before the intersection of first exhaust tube and second flue gas trunk line, and the interval is not less than 1m.
As a preferred scheme of the utility model, first fan and second fan are driven by same inverter motor, and the blade of first fan is reverse setting with the blade of second fan.
As the utility model discloses an optimal scheme, first flue gas emission source includes that the first waste heat boiler that burns burning furnace and connect the first setting of burning furnace that burns, first flue gas trunk line connects first waste heat boiler's fume exhausting port setting.
As an optimal proposal of the utility model, a first cyclone dust collector is arranged between the gas mixing unit and the first waste heat boiler.
As an optimal scheme of the utility model, the second fume emission source includes that the second burns burning furnace and connects the second to burn the second exhaust-heat boiler that burning furnace set up, second exhaust-heat boiler's fume emission port setting is connected to second flue gas trunk line.
As an optimal proposal of the utility model, a second cyclone dust collector is arranged between the second gas mixing unit and the second waste heat boiler.
The utility model discloses beneficial effect:
1. the utility model discloses a flue gas processing system exchanges the pipeline that the flue gas carries out the exchange among the different flue gas pipeline through setting up the extraction, makes the flue gas of different flue gas in being responsible for carry out the part and exchanges and mix, and for single flue gas of being responsible for independent processing respectively, the fluctuation of pollutant in the flue gas has been restrained on the whole after the flue gas mixing to reduced the consumption of purifying the medicament, in addition, because the fluctuation of flue gas pollutant receives the suppression, can also make flue gas processing system be in work under the optimum working condition, lifting means treatment effeciency.
2. The utility model discloses a flue gas processing system guarantees that the sunction inlet is leading to the mouth through the access point position that sets up the exhaust tube to guarantee that the flue gas of sending into is not disturbed by the flue gas of taking out, can guarantee the mixed effect of flue gas, further promote the undulant suppression effect of pollutant in the flue gas.
3. The utility model discloses a flue gas processing system is through setting up the access angle of exhaust tube, and the kinetic energy that flows that can make full use of trunk line flue gas has reduced the fan energy consumption, has saved the running cost.
Drawings
FIG. 1 is a schematic system flow diagram of a flue gas treatment system according to an embodiment;
FIG. 2 is a simplified system flow diagram of a flue gas treatment system according to an embodiment;
fig. 3 is a schematic diagram illustrating a butt connection between an exhaust pipe and a flue gas main pipe in the flue gas treatment system according to the embodiment.
The mark in the figure is: 101. the first incinerator 102, the second incinerator 201, the first exhaust-heat boiler 202, the second exhaust-heat boiler 301, the first cyclone dust collector 302, the second cyclone dust collector 401, the first flue gas purification unit 402, the second flue gas purification unit 5, the first flue gas main pipeline 501, the first exhaust pipe 6, the first fan 7, the second fan 8, the variable frequency motor 9, the second flue gas main pipeline 901, the second exhaust pipe.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments, wherein in the description of the present invention, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships that are based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, rather than to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.
The utility model provides a flue gas processing system's concrete embodiment:
referring to fig. 1 and fig. 2, the flue gas treatment system of the present embodiment includes a first main flue gas duct 5 and a second main flue gas duct 9, the first main flue gas duct 5 and the second main flue gas duct 9 are respectively and independently disposed, that is, taking the current waste incineration line as an example, there are two waste incineration lines, wherein the waste incineration device is used as a discharge source for generating flue gas, the first flue gas discharge source includes a first incinerator 101 and a first exhaust-heat boiler 201 connected to the first incinerator 101, the second flue gas discharge source includes a second incinerator 102 and a second exhaust-heat boiler 202 connected to the second incinerator 102, the first incinerator 101 and the first exhaust-heat boiler 201 as well as the second incinerator 102 and the second exhaust-heat boiler 202 constitute two waste incineration lines, the first main flue gas duct 5 is connected to the flue gas discharge port of the first exhaust-heat boiler 201, the second main flue gas duct 9 is connected to the flue gas discharge port of the second exhaust-heat boiler 202, and two independent flue gas discharge systems are formed.
It can understand, be equipped with first gas cleaning unit 401 on the first flue gas main pipeline 5, be equipped with second gas cleaning unit 402 on the second gas main pipeline 9, wherein, first gas cleaning unit 401 and second gas cleaning unit 402 all can adopt current clarification plant, for example, gas cleaning unit can adopt present general deacidification and sack dust collector, after deacidification and dust removal by the chimney evacuation, gas cleaning unit only need can detach the required controlled pollutant in the flue gas can, do not restrict which kind of clarification plant of its specific adoption or which kind of purification mode.
Different with current flue gas processing system, it is equipped with the gas mixing unit to connect first flue gas trunk line 5 and second flue gas trunk line 9, the gas mixing unit is in flue gas flow direction, should be located before first flue gas purification unit 401 and second flue gas purification unit 402, specifically, the gas mixing unit is when connecting first flue gas trunk line 5 and second flue gas trunk line 9, the tie point should be located on the body before first flue gas purification unit 401 and the body before second flue gas trunk line 9 is located before second flue gas purification unit 402, the gas mixing unit is arranged in making the flue gas in first flue gas trunk line 5 and the second flue gas trunk line 9 mix, this mix indicates can send into second flue gas trunk line 9 with partial flue gas in first flue gas trunk line 5, send into first flue gas trunk line 5 with partial flue gas in the second flue gas trunk line 9 simultaneously.
It can be understood that, as long as the scheme that can realize above-mentioned effect all belongs to the scope of gas mixing unit in this application, in this embodiment, provide a specifically gas mixing unit structure, it is shown with fig. 1 and 2 to combine, the gas mixing unit includes first exhaust pipe 501 and second exhaust pipe 901, wherein, first exhaust pipe 501 connects first flue gas trunk line 5 and the setting of second flue gas trunk line 9, be equipped with first fan 6 on first exhaust pipe 501, can send partial flue gas in first flue gas trunk line 5 into second flue gas trunk line 9 through this setting, realize mixing with flue gas in second flue gas trunk line 9, second exhaust pipe 901 connects second flue gas trunk line 9 and the setting of first flue gas trunk line 5, be equipped with second fan 7 on second exhaust pipe 901, can send partial flue gas in second flue gas trunk line 9 into first flue gas trunk line 5, mix with flue gas in first flue gas trunk line 5, when implementing specifically, the flow of two exhaust pipes is bled and can be respectively for the 20-50% of the corresponding single flue gas trunk flow.
The flue gas is mixed through the gas mixing unit, so that the fluctuation peaks of pollutants in the two flue gas pipelines can be inhibited, the consumption of purifying agents required to be added in subsequent purifying equipment can be reduced, and the fluctuation peak value of the pollutants can be prevented from exceeding the flue gas emission standard under the condition of lower consumption.
In this embodiment, it can be understood that valves may be disposed on both the first suction pipe 501 and the second suction pipe 901.
In order to ensure that the flow rates of the two exhaust pipes are the same as much as possible, when the variable frequency fan is arranged, the first fan 6 and the second fan 7 are driven by the same variable frequency motor 8, namely the first fan 6 and the second fan 7 are driven by the same rotating shaft connected with the output shaft of the variable frequency motor 8, and the blades of the first fan 6 and the blades of the second fan 7 are arranged in a reverse direction, when the variable frequency motor 8 works, the first fan 6 and the second fan 7 respectively realize the air exhaust process as described above, and the flow rates of the two exhaust pipes can be ensured to be the same as much as possible.
In this embodiment, in order to reduce the energy consumption of the fan, in the flowing direction of the flue gas, the included angles between the first air suction pipe 501 and the first flue gas main pipeline 5 and between the second air suction pipe 901 and the second flue gas main pipeline 9 are less than 60 degrees, the included angles between the first air suction pipe 501 and the second flue gas main pipeline 9 and between the second air suction pipe 901 and the first flue gas main pipeline 5 are greater than 120 degrees, taking fig. 3 as an example, α is 1 Less than 60 DEG alpha 2 Greater than 120 degrees, in the air exhaust process, the flow kinetic energy of the flue gas in the main pipeline can be fully utilized, and the energy consumption of the fan is reduced.
Wherein, when setting up bleed duct and trunk line butt joint, on flue gas flow direction, arrange in before the guarantee sunction inlet in and send out the mouth, the distance of the intersection of first exhaust tube 501 and first flue gas trunk line 5 to the intersection of second exhaust tube 901 and first flue gas trunk line 5 is not less than 1m, the distance of the intersection of second exhaust tube 901 and second flue gas trunk line 9 to the intersection of first exhaust tube 501 and second flue gas trunk line 9 is not less than 1m, avoid inhaling the wind part and being sent out, thereby guarantee the flue gas mixed effect.
In this embodiment, in order to prevent the fan from being worn by dust in the flue gas, a first cyclone 301 may be disposed at the outlet of the first exhaust-heat boiler 201, and a second cyclone 302 may be disposed at the outlet of the second exhaust-heat boiler 202.
It should be noted that the detailed description is not the prior art, and the above embodiments are only used to illustrate the present invention, but the present invention is not limited to the above embodiments, and any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention all fall within the scope of the present invention.
Claims (10)
1. The utility model provides a flue gas processing system, is equipped with first flue gas purification unit (401) on first flue gas trunk line (5) and second flue gas trunk line (9) of connecting the setting of second flue gas emission source including connecting first flue gas trunk line (5) that first flue gas emission source set up, is equipped with second flue gas purification unit (402) on second flue gas trunk line (9), its characterized in that: the pipe body connected with the first flue gas main pipeline (5) and located in front of the first flue gas purification unit (401) and the pipe body connected with the second flue gas main pipeline (9) and located in front of the second flue gas purification unit (402) are provided with a gas mixing unit used for enabling flue gas in the first flue gas main pipeline (5) and the second flue gas main pipeline (9) to be mixed so as to inhibit the fluctuation of the content of flue gas pollutants in the first flue gas main pipeline (5) and the second flue gas main pipeline (9).
2. The flue gas treatment system according to claim 1, wherein the gas mixing unit comprises a first gas suction pipe (501) connected to the first flue gas main pipe (5) and the second flue gas main pipe (9) and capable of sending the flue gas in the first flue gas main pipe (5) into the second flue gas main pipe (9), and the first gas suction pipe (501) is provided with a first fan (6).
3. The flue gas treatment system according to claim 2, wherein the gas mixing unit further comprises a second air suction pipe (901) which is connected with the second flue gas main pipe (9) and the first flue gas main pipe (5) and can convey the flue gas in the second flue gas main pipe (9) into the first flue gas main pipe (5), and a second fan (7) is arranged on the second air suction pipe (901).
4. A flue gas treatment system according to claim 3, wherein in the flow direction of the flue gas, the included angles between the first suction pipe (501) and the first main flue gas pipe (5) and between the second suction pipe (901) and the second main flue gas pipe (9) are less than 60 °, and the included angles between the first suction pipe (501) and the second main flue gas pipe (9) and between the second suction pipe (901) and the first main flue gas pipe (5) are greater than 120 °.
5. A flue gas treatment system according to claim 3, wherein in the flow direction of the flue gas, the junction of the first suction pipe (501) and the first flue gas main pipe (5) is located before the junction of the second suction pipe (901) and the first flue gas main pipe (5), and the distance between the junctions is not less than 1m, and the junction of the second suction pipe (901) and the second flue gas main pipe (9) is located before the junction of the first suction pipe (501) and the second flue gas main pipe (9), and the distance between the junctions is not less than 1m.
6. A flue gas treatment system according to claim 3, wherein the first fan (6) and the second fan (7) are driven by the same variable frequency motor (8), and the blades of the first fan (6) and the blades of the second fan (7) are arranged in opposite directions.
7. A flue gas treatment system according to any of claims 1 to 6, wherein the first flue gas emission source comprises a first incinerator (101) and a first waste heat boiler (201) arranged in connection with the first incinerator (101), and the first main flue gas duct (5) is arranged in connection with the flue gas emission port of the first waste heat boiler (201).
8. A flue gas treatment system according to claim 7, characterized in that a first cyclone (301) is arranged between the gas mixing unit and the first exhaust-heat boiler (201).
9. A flue gas treatment system according to claim 1, wherein the second flue gas emission source comprises a second incinerator (102) and a second waste heat boiler (202) arranged in connection with the second incinerator (102), and the second main flue gas duct (9) is arranged in connection with the flue gas discharge opening of the second waste heat boiler (202).
10. A flue gas treatment system according to claim 9, characterized in that a second cyclone (302) is arranged between the second gas mixing unit and the second heat recovery steam generator (202).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222378287.4U CN218237477U (en) | 2022-09-07 | 2022-09-07 | Flue gas treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222378287.4U CN218237477U (en) | 2022-09-07 | 2022-09-07 | Flue gas treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218237477U true CN218237477U (en) | 2023-01-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222378287.4U Active CN218237477U (en) | 2022-09-07 | 2022-09-07 | Flue gas treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218237477U (en) |
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2022
- 2022-09-07 CN CN202222378287.4U patent/CN218237477U/en active Active
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