CN212594973U - Thermal power waste gas detection processing apparatus - Google Patents
Thermal power waste gas detection processing apparatus Download PDFInfo
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- CN212594973U CN212594973U CN202021065450.6U CN202021065450U CN212594973U CN 212594973 U CN212594973 U CN 212594973U CN 202021065450 U CN202021065450 U CN 202021065450U CN 212594973 U CN212594973 U CN 212594973U
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- pipe
- waste gas
- gas detection
- way valve
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Abstract
The utility model discloses a thermal power waste gas detection processing apparatus, including absorption tower, smoke extraction pipe, blast pipe and water smoke spray tube. The outside of water smoke spray tube is connected with water tank and water pump, is equipped with first waste gas detection device and first electromagnetism three-way valve on the smoke extraction pipe, is connected with first gas vent on the third interface of first electromagnetism three-way valve, is equipped with second waste gas detection device and second electromagnetism three-way valve on the blast pipe, and the second interface of second electromagnetism three-way valve is connected with the second gas vent, and the third interface of second electromagnetism three-way valve is connected with the circulating pipe. The concentration of harmful gas in the waste gas is judged by arranging a first waste gas detection device and a second waste gas detection device, and whether the waste gas needs to be subjected to circulating treatment or not is selected to reach the emission standard; and spraying the reaction solution into the absorption tower through a water mist spray pipe so as to neutralize the sulfur carbide in the waste gas. Thereby solving the problems of incomplete waste gas treatment, poor effect, inconvenient use, poor automatic effect and the like.
Description
Technical Field
The utility model relates to a thermal power technical field, concretely relates to thermal power waste gas detection processing apparatus.
Background
At present, more than half of coal for combustion in China is bituminous coal which is inferior to lean coal, and anthracite coal is below 10%, SO that the bituminous coal is mainly used for thermal power generation, toxic gases such as SO2 and CO are generated by directly combusting the bituminous coal, the surrounding environment is polluted, human bodies are damaged, and normal life of surrounding residents is influenced. The waste gas detection and treatment device is used for detecting waste gas and treating the waste gas, so that air pollution can be reduced.
The existing exhaust gas detection and treatment device has many defects, for example, the exhaust gas treatment is not thorough enough, the effect is poor, the use is inconvenient, and the automatic effect is poor.
SUMMERY OF THE UTILITY MODEL
For overcoming prior art's defect, the utility model aims to provide a thermal power waste gas detection processing apparatus to realize the selectivity of waste gas and discharge and circulation processing.
Therefore, the utility model provides a thermal power waste gas detection processing apparatus, including absorption tower, smoke extraction pipe, blast pipe and water smoke spray tube. The water mist spray pipe is arranged inside the absorption tower, the outer side of the water mist spray pipe is connected with a water tank through a water pipe, and a water pump is arranged at the joint of the water pipe and the water tank.
The smoke extraction pipe is provided with a first waste gas detection device and a first electromagnetic three-way valve, a third interface of the first electromagnetic three-way valve is connected with a first exhaust port, and the first waste gas detection device is in signal connection with the first electromagnetic three-way valve so as to control the on-off of a flow channel of the first electromagnetic three-way valve and further control the on-off of the smoke extraction pipe and the first exhaust port.
The exhaust pipe is arranged at the top of the absorption tower, a second waste gas detection device and a second electromagnetic three-way valve are arranged on the exhaust pipe, a second interface of the second electromagnetic three-way valve is connected with a second exhaust port, a third interface of the second electromagnetic three-way valve is connected with a circulating gas pipe, the other end of the circulating gas pipe is communicated with the inside of the absorption tower, the second waste gas detection device is in signal connection with the second electromagnetic three-way valve to control the on-off of a second electromagnetic three-way valve flow channel, and further control the circulating gas pipe, the second exhaust port and the on-off of the exhaust pipe.
Furthermore, a spray head is arranged on the water mist spray pipe, and the horizontal height of the spray head is higher than the height of the connection part of the smoke extraction pipe and the absorption tower.
Furthermore, the water mist spray pipes are provided with six water mist spray pipes and are arranged in a center scattering mode.
Furthermore, the middle part of the smoke pumping pipe is connected with a filter residue bent pipe.
Furthermore, the smoke extraction pipe is also connected with an activated carbon adsorption box.
Furthermore, a return pipe is arranged at the bottom of the absorption tower, and a filter plate is arranged in the middle of the return pipe.
Further, the water tank is filled with NaOH solution.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a thermal power waste gas detection processing apparatus, through setting up the first waste gas detection device, judge the concentration of harmful gas in the waste gas, choose whether to start water pump and water smoke spray tube; through the arrangement of the second waste gas detection device, the concentration of harmful gas in the waste gas is judged again, and whether the waste gas needs to be subjected to circulating treatment or not is selected so as to reach the emission standard; the reaction solution is sprayed into the absorption tower through the water mist spray pipe to neutralize the sulfur carbide in the waste gas, so that the problems of incomplete waste gas treatment, poor effect, inconvenient use, poor automatic effect and the like are solved.
In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural view of a thermal power generation exhaust gas detection and treatment device of the present invention; and
fig. 2 is a schematic structural diagram of a smoke extraction pipe in the thermal power generation exhaust gas detection processing apparatus of the present invention.
Description of the reference numerals
1. A smoke extraction pipe; 2. filtering residue and bending the pipe; 3. an activated carbon adsorption cartridge; 4. a first exhaust gas detection device; 5. a first electromagnetic three-way valve; 6. a first exhaust port; 7. an exhaust pipe; 8. a second exhaust gas detection device; 9. a second electromagnetic three-way valve; 10. a second exhaust port; 11. a circulating gas pipe; 12. a water mist spray pipe; 13. a water pump; 14. a water tank; 15. an absorption tower; 16. a filter plate; 17. a return pipe.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Fig. 1-2 show some embodiments according to the invention.
As shown in fig. 1, a thermal power waste gas detection and treatment device comprises an absorption tower 15, a smoke extraction pipe 1, an exhaust pipe 7, a water mist spray pipe 12 and a return pipe 17, wherein the smoke extraction pipe 1 is connected to the side wall of the absorption tower 15, the exhaust pipe 7 is arranged at the top of the absorption tower 15 and is used for discharging treated waste gas, the water mist spray pipe 12 is arranged inside the absorption tower 15 and can spray reaction solution to neutralize sulfur carbide in the waste gas, and the return pipe 17 is arranged at the bottom of the absorption tower and can secondarily utilize water in reaction waste liquid.
Specifically, as shown in fig. 2, the smoke extraction pipe 1 is connected to a smoke exhaust pipe of a combustion chamber of a boiler, the first exhaust gas detection device 4 and the first electromagnetic three-way valve 5 are sequentially disposed at a front end of a connection between the smoke extraction pipe 1 and the absorption tower 15, and a third interface of the first electromagnetic three-way valve 5 is connected to a first exhaust port 6. The first exhaust gas detection device 4 is in signal connection with the first electromagnetic three-way valve 5, and the on-off of the flow passage of the first electromagnetic three-way valve 5 is controlled to further control the on-off of the smoke extraction pipe 1 and the first exhaust port 6.
The concentration of harmful gas in the exhaust gas in the smoke extraction pipe 1 can be detected through the first exhaust gas detection device 4, and when the concentration of the harmful gas is lower than the standard emission concentration, the first electromagnetic three-way valve 5 opens the first communication channel to communicate the smoke extraction pipe 1 with the first exhaust port 6, so that the exhaust gas reaching the emission standard is directly discharged into the atmosphere.
When the first exhaust gas detection device 4 detects that the concentration of harmful gases in the exhaust gas in the smoke extraction pipe 1 is higher than the standard emission concentration, the first electromagnetic three-way valve 5 opens the second communication channel to enable the smoke extraction pipe 1 to be communicated left and right, the high-concentration exhaust gas enters the absorption tower 15, and the exhaust gas is treated through the absorption tower 15.
Specifically, as shown in fig. 1, the water mist spray pipe 12 is arranged inside the absorption tower 15, a spray head is arranged on the water mist spray pipe 12, and the horizontal height of the spray head on the water mist spray pipe 12 is higher than the position where the smoke extraction pipe 1 is connected with the absorption tower 15, so that the water mist can spray and filter the entering waste gas conveniently. Wherein, the outside of the water spray pipe 12 is connected with a water tank 14 through a water pipe, and a water pump 13 is arranged at the connection part of the water pipe and the water tank 14, when the first exhaust gas detection device 4 detects that the concentration of the exhaust gas in the smoke extraction pipe 1 is higher than the standard discharge concentration, the water pump 13 is started, and a reaction solution is sprayed into the absorption tower 15 to neutralize the sulfur carbide in the exhaust gas. Wherein, the water tank 14 is filled with NaOH solution.
Specifically, as shown in fig. 1, an exhaust pipe 7 is arranged at the top of the absorption tower 15, and the treated exhaust gas can be discharged, wherein a second exhaust gas detection device 8 and a second electromagnetic three-way valve 9 are arranged on the exhaust pipe 7, a second port of the second electromagnetic three-way valve 9 is connected with a second exhaust port 10, a third port of the second electromagnetic three-way valve 9 is connected with a circulating gas pipe 11, and the other end of the circulating gas pipe 11 is communicated with the inside of the absorption tower 15.
The second exhaust gas detection device 8 is in signal connection with the second electromagnetic three-way valve 9 to control the on-off of a flow passage of the second electromagnetic three-way valve 9, and further control the on-off of the exhaust pipe 7 and the circulating gas pipe 11 or the second exhaust port 10.
The second exhaust gas detection device 8 is used for detecting the concentration of harmful gas in the exhaust pipe 7, and when the concentration of the harmful gas is lower than the emission standard, the second electromagnetic three-way valve 9 opens the first channel to enable the exhaust pipe 7 to be communicated with the second exhaust port 10, so that the exhaust gas meeting the emission standard is directly discharged into the atmosphere. When the second exhaust gas detection device 8 detects that the concentration of the harmful gas in the exhaust pipe 7 is higher than the emission standard, the second electromagnetic three-way valve 9 opens the second channel to communicate the exhaust pipe 7 with the circulating gas pipe 11, and the exhaust gas is refluxed into the absorption tower 15 for repeated treatment.
Specifically, as shown in fig. 1, a return pipe 17 is arranged at the bottom of the absorption tower 15, and a filter plate 16 is installed in the middle of the return pipe 17; the filter plate 16 filters water in the waste liquid after reaction, and the water returns to the boiler through the return pipe 17 for secondary utilization.
In an embodiment, as shown in fig. 2, the middle of the smoke exhaust pipe 1 is connected with a residue elbow pipe 2, the residue elbow pipe 2 can perform preliminary filtration on the waste gas in the conveying process, a filter layer formed by porous ceramic is installed in an inner cavity of the residue elbow pipe 2, and the filter layer can filter large-particle impurities in the waste gas.
In an embodiment, as shown in fig. 2, the smoke extraction pipe 1 located behind the residue elbow 2 is further provided with an activated carbon adsorption box 3, and the activated carbon adsorption box 3 can adsorb and filter the exhaust gas to remove small particle impurities in the exhaust gas, so as to reach the national emission standard.
In one embodiment, as shown in fig. 1, at least six water mist spray pipes 12 are provided, and the water mist spray pipes 12 are arranged in a center scattering manner, and small spray heads are uniformly arranged on the bottom surface of the water mist spray pipes 12, so that the spray concentration of the water mist can be improved.
The utility model discloses a thermal power waste gas detection processing apparatus's working process as follows:
firstly, the exhaust gas discharged from the smoke exhaust pipe of the boiler combustion chamber is conveyed to an absorption tower 15 through a smoke exhaust pipe 1, the exhaust gas sequentially passes through a filter residue bent pipe 2 and an active carbon adsorption box 3, and the filter residue bent pipe 2 and the active carbon adsorption box 3 respectively filter and adsorb large particle impurities and small particle impurities in the exhaust gas.
Then, the filtered waste gas passes through a first waste gas detection device 4, and the first waste gas detection device 4 detects whether the concentration of harmful gas in the waste gas in the smoke pumping pipe 1 is higher than the standard emission concentration; when the concentration is higher than the standard discharge concentration, the first electromagnetic three-way valve 5 opens the second communication channel to enable the smoke extraction pipe 1 to be communicated left and right, high-concentration waste gas enters the absorption tower 15, and the waste gas is treated through the absorption tower 15; and when the emission concentration is lower than the standard emission concentration, the first electromagnetic three-way valve 5 opens the first communication channel to communicate the smoke extraction pipe 1 with the first exhaust port 6, so that the waste gas reaching the emission standard is directly discharged into the atmosphere.
Then, the first electromagnetic three-way valve 5 sends a signal to the controller to start the water pump 13, and the water pump 13 sprays the NaOH solution in the water tank on the gas in the absorption tower 15 through the water mist spray pipe 12 to remove SO in the waste gas2Wherein, NaOH solution and SO2Water and Na are finally produced after the reaction2SO3The water directly passes through the filter plate 16 and flows into the boiler through the return pipe 17 for secondary utilization.
Finally, the waste gas treated by the absorption tower 15 is conveyed outwards through the exhaust pipe 7 and passes through the second waste gas detection device 8, when the second waste gas detection device 8 detects that the concentration of harmful gas in the exhaust pipe 7 is lower than the emission standard, the second electromagnetic three-way valve 9 opens the first channel, so that the exhaust pipe 7 is communicated with the second exhaust port 10, and the waste gas meeting the emission standard is directly discharged into the atmosphere; when the second exhaust gas detection device 8 detects that the concentration of the harmful gas in the exhaust pipe 7 is higher than the emission standard, the second electromagnetic three-way valve 9 opens the second channel to communicate the exhaust pipe 7 with the circulating gas pipe 11, and the exhaust gas is refluxed into the absorption tower 15 for repeated treatment.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A thermal power generation waste gas detection and treatment device is characterized by comprising an absorption tower (15), a smoke extraction pipe (1), an exhaust pipe (7) and a water mist spray pipe (12),
the water mist spray pipe (12) is arranged in the absorption tower (15), the outer side of the water mist spray pipe (12) is connected with a water tank (14) through a water pipe, a water pump (13) is arranged at the joint of the water pipe and the water tank (14),
the smoke extraction pipe (1) is provided with a first waste gas detection device (4) and a first electromagnetic three-way valve (5), a third interface of the first electromagnetic three-way valve (5) is connected with a first exhaust port (6), the first waste gas detection device (4) is in signal connection with the first electromagnetic three-way valve (5) so as to control the on-off of a flow passage of the first electromagnetic three-way valve (5) and further control the on-off of the smoke extraction pipe (1) and the first exhaust port (6),
the exhaust pipe (7) is arranged at the top of the absorption tower (15), a second waste gas detection device (8) and a second electromagnetic three-way valve (9) are arranged on the exhaust pipe (7), a second interface of the second electromagnetic three-way valve (9) is connected with a second exhaust port (10), a third interface of the second electromagnetic three-way valve (9) is connected with a circulating gas pipe (11), and the other end of the circulating gas pipe (11) is communicated with the inside of the absorption tower (15),
and the second waste gas detection device (8) is in signal connection with the second electromagnetic three-way valve (9) to control the on-off of a flow passage of the second electromagnetic three-way valve (9), and further control the on-off of the circulating gas pipe (11), the second exhaust port (10) and the exhaust pipe (7).
2. The thermal power generation exhaust gas detection and treatment device according to claim 1, wherein a spray head is arranged on the water mist spray pipe (12), and the horizontal height of the spray head is higher than the height of the connection position of the smoke extraction pipe (1) and the absorption tower (15).
3. The thermal power generation exhaust gas detection processing apparatus according to claim 1, wherein the water mist nozzles (12) are provided with six and arranged in a center scattering manner.
4. The thermal power generation exhaust gas detection processing apparatus according to claim 1, wherein a filter residue elbow (2) is connected to the middle of the smoke extraction pipe (1).
5. The thermal power generation exhaust gas detection processing apparatus according to claim 1, wherein the smoke extraction pipe (1) is further connected with an activated carbon adsorption box (3).
6. The thermal power generation exhaust gas detection processing device according to claim 1, wherein a return pipe (17) is provided at the bottom of the absorption tower (15), and a filter plate (16) is installed in the middle of the return pipe (17).
7. The thermal power generation exhaust gas detection processing apparatus according to claim 1, wherein the water tank (14) contains a NaOH solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021065450.6U CN212594973U (en) | 2020-06-10 | 2020-06-10 | Thermal power waste gas detection processing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021065450.6U CN212594973U (en) | 2020-06-10 | 2020-06-10 | Thermal power waste gas detection processing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212594973U true CN212594973U (en) | 2021-02-26 |
Family
ID=74714024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021065450.6U Expired - Fee Related CN212594973U (en) | 2020-06-10 | 2020-06-10 | Thermal power waste gas detection processing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212594973U (en) |
-
2020
- 2020-06-10 CN CN202021065450.6U patent/CN212594973U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210226 |