Flue gas desulfurization, condensation and white smoke elimination device
By installing air-cooled heat dissipation, hot gas auxiliary whitening, multi-stage desulfurization and dust-proof heat dissipation structures in the flue gas whitening device, the problem of insufficient whitening and desulfurization treatment efficiency of colored flue gas is solved, and a more efficient flue gas purification effect is achieved.
Patent Information
- Application Number
- CN202421754150.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-23
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-07-23
AI Technical Summary
When used, it is difficult to efficiently whiten and desulfurize the colored flue gas, and wet desulfurization effect on the flue gas is not good.
A flue gas desulfurization and condensation and dehydration device is designed. By installing an efficient air-cooled heat dissipation structure, a hot gas auxiliary whitening structure, a multi-stage desulfurization structure and a dust-proof and heat-dissipation structure, including a heat dissipation fan, a tower assembly, a spray assembly, an air intake assembly and a heat dissipation component, the desulfurization and dehydration effect of the device is improved.
Through efficient air-cooled heat dissipation and multi-stage desulfurization structure, the discharge efficiency and desulfurization efficiency of harmful substances in the flue gas are significantly improved, and the flue gas is eliminated, solving the problem of insufficient efficiency and effect of existing devices.
Smart Images
Figure CN222943239U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of flue gas desulfurization, and specifically relates to a flue gas desulfurization condensation desulfurization device. Background Art
[0002] Flue gas deoxidation devices are usually used in industrial flue gas treatment processes, especially in the flue gas generated during the combustion of coal and other fossil fuels, which contains a large amount of pollutants such as sulfur dioxide and nitrogen oxides.
[0003] Common flue gas desulfurization devices include wet desulfurization devices (such as limestone-gypsum method, seawater desulfurization method), dry desulfurization devices (such as spray dry desulfurization), selective catalytic reduction (SCR) devices, etc. These devices choose appropriate ways to reduce the concentration of pollutants in flue gas according to different processes and requirements to meet environmental protection standards and regulatory requirements.
[0004] Existing flue gas desulfurization devices often convert or adsorb harmful substances in the flue gas into controllable substances through absorption, washing or chemical reaction when in use, thereby reducing the impact on the environment and health. However, the temperature of the flue gas initially entering the desulfurization tower is high and its volume is large, and the average rising velocity of the flue gas in the desulfurization tower is fast, which affects the efficiency of the device in desulfurizing the flue gas, and its wet desulfurization has a poor effect on the desulfurization of the flue gas.
[0005] Therefore, in order to address the problem that the above-mentioned flue gas desulfurization device has a poor desulfurization structure for desulfurizing colored flue gas and is difficult to efficiently clean harmful substances in the flue gas when in use, a flue gas desulfurization condensation desulfurization device has been developed. By adding an efficient air-cooled heat dissipation structure, a hot air-assisted desulfurization structure, a multi-stage desulfurization structure and a dust-proof heat dissipation structure to the flue gas desulfurization device, the effect and efficiency of the device in discharging harmful substances in the flue gas can be greatly improved, and its effect in desulfurizing the flue gas can be improved. Utility Model Content
[0006] In order to overcome the problem that the flue gas desulfurization device is often difficult to efficiently desulfurize and treat colored flue gas when in use.
[0007] The technical solution of the utility model is: a flue gas desulfurization condensation and dewhitening device, including a cooling fan, a tower body component, a spray component, an air intake component and a heat dissipation component, the inner wall of the tower body component is provided with a two-stage dust removal and demisting structure and a spray component with a first-stage condensation alkaline spray structure, the left outer wall of the tower body component is provided with an air intake component for assisting the flue gas heating through a pipeline, a heat dissipation component for air-cooling the flue gas is installed on the flue gas pipeline of the tower body component, cooling fans are installed at the upper and lower ends of the heat dissipation component, the tower body component includes a desulfurization tower, a connecting groove, a smoke exhaust pipe, a curved pipe, an air intake pipe, a drain pipe, three connecting grooves equidistantly distributed are provided on the outer wall of the lower end of the desulfurization tower, a drain pipe is fixedly connected to the outer wall of the front end of the desulfurization tower, and a smoke exhaust pipe is fixedly connected to the upper end of the desulfurization tower.
[0008] Preferably, the flue gas entering the tower body assembly can be initially cooled by the heat dissipation assembly, and the flue gas in the tower body assembly can be cooled for a second time by the spray assembly, and then the cooled flue gas can be heated in conjunction with the air intake assembly to enhance the desulfurization effect of the device on the flue gas and prevent the flue gas from producing white smoke.
[0009] Preferably, a curved tube is fixedly connected to the outer wall of the left end of the desulfurization tower, and an air inlet pipe is fixedly connected to the left end of the curved tube. The curved tube is a curved heat dissipation pipe. When in use, the curved tube can extend the contact time between the flue gas entering the desulfurization tower and the first heat exchanger and the second heat exchanger, so as to enhance the effect of air cooling and heat dissipation of the flue gas.
[0010] Preferably, the heat dissipation assembly includes an outer shell, a through hole, a dustproof plate, an installation groove, a first heat exchanger, a second heat exchanger, a first bolt and a second bolt. The first heat exchanger and the second heat exchanger are respectively arranged at the front and rear ends of the curved tube. The inner walls of the first heat exchanger and the second heat exchanger are in contact with the outer wall of the curved tube. The first heat exchanger and the second heat exchanger are fixed by the first bolt and the second bolt. The first bolt is threadedly installed in the second bolt. When in use, the flue gas in the curved tube can be efficiently dissipated through the first heat exchanger and the second heat exchanger, so that the flue gas temperature is reduced, the flue gas volume is reduced, the average rising velocity of the flue gas in the desulfurization tower is reduced, the reaction time of the flue gas with the desulfurization liquid in the original desulfurization tower is extended, and the desulfurization efficiency will be higher.
[0011] Preferably, the outer walls of the first heat exchanger and the second heat exchanger are installed with an outer shell, the upper and lower ends of the outer shell are penetrated with installation grooves, and the left and right ends of the outer shell are penetrated with through holes. When in use, the outer shell is combined with a dustproof plate to prevent external dust from being adsorbed on the outer walls of the first heat exchanger and the second heat exchanger to affect their heat dissipation effects.
[0012] Preferably, dustproof plates are fixed to the inner walls at the front and rear ends of the shell, a cooling fan is fixed to the mounting groove, and the through holes are matched with the output ports at the left and right ends of the curved tube. When in use, the cooling fan can be used to efficiently cool the cooling fins on the first heat exchanger and the second heat exchanger to enhance the heat dissipation effect of the first heat exchanger and the second heat exchanger on the flue gas.
[0013] Preferably, the spray assembly includes a first-stage wet electrostatic precipitator and mist collector, a first-stage low-temperature condensation alkaline spray device and a two-stage wet electrostatic precipitator and mist collector, the first-stage wet electrostatic precipitator and mist collector and the first-stage low-temperature condensation alkaline spray device are respectively arranged on the upper and lower sides of the central inner wall of the desulfurization tower, a first-stage low-temperature condensation alkaline spray device is arranged between the first-stage wet electrostatic precipitator and the first-stage low-temperature condensation alkaline spray device, the first-stage low-temperature condensation alkaline spray device is installed on the central inner wall of the desulfurization tower, the first-stage wet electrostatic precipitator and mist collector, the first-stage low-temperature condensation alkaline spray device and the two-stage wet electrostatic precipitator and mist collector are respectively connected to the connecting groove through pipes. When in use, the first-stage low-temperature condensation alkaline spray device can be used to cool the flue gas to below 35°C to condense water vapor, reduce the temperature point of the saturated flue gas, and efficiently remove harmful substances in the flue gas.
[0014] Preferably, the air intake assembly includes a blower and an input pipe. The lower end of the output unit of the blower is fixedly connected to the input pipe, and the other end of the input pipe is installed on the upper outer wall of the desulfurization tower. When in use, the blower can transport the external hot air into the desulfurization tower to heat the flue gas discharged from the wet electrostatic precipitator and then raise the temperature by 8 to 10°C for discharge, so that the water vapor in the flue gas is away from the saturation point and will not produce white smoke after mixing with the drier cold air.
[0015] Beneficial effects of the utility model:
[0016] 1. The first heat exchanger and the second heat exchanger can efficiently dissipate the heat of the flue gas in the curved tube, thereby reducing the temperature and volume of the flue gas and reducing the rising velocity of the flue gas, so as to improve the desulfurization efficiency of the device;
[0017] 2. The first-level low-temperature condensation alkaline spray device can cool the flue gas to below 35°C to condense water vapor, reduce the temperature point of saturated flue gas, and efficiently remove harmful substances in the flue gas;
[0018] 3. The blower can transport the hot air from the outside to the desulfurization tower to heat the flue gas discharged from the wet electrostatic precipitator and demister by 8-10℃, so that the water vapor in the flue gas is far away from the saturation point and will not produce white smoke after mixing with the drier cold air;
[0019] 4. The outer shell and the dustproof plate can prevent external dust from being adsorbed on the outer walls of the first heat exchanger and the second heat exchanger to affect their heat dissipation effects. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 What is shown is a schematic diagram of the three-dimensional structure of the flue gas desulfurization condensation and deoxidation device of the utility model;
[0021] Figure 2 The three-dimensional structure of the flue gas desulfurization condensation and deoxidation device of the utility model is shown;
[0022] Figure 3 The three-dimensional structure diagram of the tower assembly and the air intake assembly of the flue gas desulfurization condensation and desulfurization device of the utility model is shown;
[0023] Figure 4 The schematic diagram of the three-dimensional structure disassembly of the heat dissipation component and the heat dissipation fan of the flue gas desulfurization condensation and deoxidation device of the utility model is shown;
[0024] Figure 5 What is shown is a schematic diagram of the three-dimensional structure disassembly of the spray component of the flue gas desulfurization condensation and deoxidation device of the present invention.
[0025] Explanation of the reference numerals: 101-desulfurization tower, 102-connecting groove, 103-exhaust pipe, 104-curved pipe, 105-inlet pipe, 106-drain pipe, 201-first-stage wet electrostatic precipitator and mist eliminator, 202-first-stage low-temperature condensation alkaline spraying device, 203-two-stage wet electrostatic precipitator and mist eliminator, 301-blower, 302-inlet pipe, 401-housing, 402-through hole, 403-dustproof plate, 404-installation groove, 405-first heat exchanger, 406-second heat exchanger, 407-first bolt, 408-second bolt, 5-cooling fan. DETAILED DESCRIPTION
[0026] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0027] See also Figure 1-Figure 5The utility model provides an embodiment: a flue gas desulfurization condensation and desulphurization device, including a cooling fan 5, a tower assembly, a spray assembly, an air intake assembly and a heat dissipation assembly. The inner wall of the tower assembly is provided with a two-stage dust removal and demisting structure and a spray assembly with a first-stage condensation alkaline spray structure. The left outer wall of the tower assembly is provided with an air intake assembly for assisting the temperature rise of the flue gas through a pipeline. A heat dissipation assembly for air cooling the flue gas is provided on the flue gas pipeline of the tower assembly. The cooling fan 5 is provided at the upper and lower ends of the heat dissipation assembly. The tower assembly includes a desulfurization tower 101, a connecting groove 102, a smoke exhaust pipe 103, a curved pipe 104, an air inlet pipe 105, and a drain pipe 106. The lower end outer wall of the desulfurization tower 101 is provided with three connecting grooves 102 distributed at equal intervals. The front end outer wall of the desulfurization tower 101 is fixedly connected with a drain pipe 106. The upper end of the desulfurization tower 101 is fixedly connected with a smoke exhaust pipe 103. The heat dissipation component can be used to initially cool down the flue gas entering the tower assembly, and the spray component can be used to cool down the flue gas in the tower assembly for a second time. The air intake component is used to heat up the flue gas after the temperature is reduced, so as to improve the desulfurization effect of the device on the flue gas and prevent the flue gas from producing white smoke. A curved tube 104 is fixedly connected to the outer wall of the left end of the desulfurization tower 101, and an air intake pipe 105 is fixedly connected to the left end of the curved tube 104. The curved tube 104 is a curved heat dissipation pipe. When in use, the curved tube 104 can extend the contact time between the flue gas entering the desulfurization tower 101 and the first heat exchanger 405 and the second heat exchanger 406, so as to improve its desulfurization effect on the flue gas. In order to achieve the effect of air cooling and heat dissipation, the air intake component includes a blower 301 and an input pipe 302. The lower end of the output unit of the blower 301 is fixedly connected with the input pipe 302, and the other end of the input pipe 302 is installed on the upper outer wall of the desulfurization tower 101. When in use, the external hot air can be transported into the desulfurization tower 101 through the blower 301 to heat the flue gas discharged from the wet electrostatic precipitator demister by 8 to 10°C before discharge, so that the water vapor in the flue gas is away from the saturation point and will not produce white smoke after mixing with the drier cold air.
[0028] See also Figure 4In this embodiment, the heat dissipation component includes a shell 401, a through hole 402, a dust plate 403, a mounting groove 404, a first heat exchanger 405, a second heat exchanger 406, a first bolt 407 and a second bolt 408. The first heat exchanger 405 and the second heat exchanger 406 are respectively arranged at the front and rear ends of the curved tube 104. The inner walls of the first heat exchanger 405 and the second heat exchanger 406 are in contact with the outer wall of the curved tube 104. The first heat exchanger 405 and the second heat exchanger 406 are fixed by the first bolt 407 and the second bolt 408. The first bolt 407 is threadedly installed in the second bolt 408. When in use, the first heat exchanger 405 and the second heat exchanger 406 can efficiently dissipate heat for the flue gas in the curved tube 104, so that the flue gas temperature is reduced, the flue gas volume is also reduced, and the average rising velocity of the flue gas in the desulfurization tower 101 is also reduced. The flue gas in the original desulfurization tower 10 1 and the reaction time with the desulfurization liquid is also prolonged, and the desulfurization efficiency will be higher. The outer walls of the first heat exchanger 405 and the second heat exchanger 406 are installed with a shell 401, and the upper and lower ends of the shell 401 are penetrated with mounting grooves 404, and the left and right ends of the shell 401 are penetrated with through holes 402. When in use, the shell 401 cooperates with the dustproof plate 403 to prevent external dust from being adsorbed on the outer walls of the first heat exchanger 405 and the second heat exchanger 406 to affect the heat dissipation effect thereof. The inner walls of the front and rear ends of the shell 401 are fixedly connected with dustproof plates 403, and the mounting groove 404 is fixedly connected with a cooling fan 5. The through hole 402 is adapted to the left and right output ports of the curved tube 104. When in use, the cooling fan 5 can be used to efficiently cool the heat dissipation fins on the first heat exchanger 405 and the second heat exchanger 406, so as to improve the heat dissipation effect of the first heat exchanger 405 and the second heat exchanger 406 on the flue gas.
[0029] See also Figure 5 In this embodiment, the spray assembly includes a first-stage wet electrostatic precipitator 201, a first-stage low-temperature condensation alkaline spray device 202 and a two-stage wet electrostatic precipitator 203. The first-stage wet electrostatic precipitator 201 and the first-stage low-temperature condensation alkaline spray device 202 are respectively arranged on the upper and lower sides of the central inner wall of the desulfurization tower 101. A first-stage low-temperature condensation alkaline spray device 202 is arranged between the first-stage wet electrostatic precipitator 201 and the first-stage low-temperature condensation alkaline spray device 202. The first-stage low-temperature condensation alkaline spray device 202 is installed on the central inner wall of the desulfurization tower 101. The first-stage wet electrostatic precipitator 201, the first-stage low-temperature condensation alkaline spray device 202 and the two-stage wet electrostatic precipitator 203 are respectively connected to the connecting groove 102 through pipes. When in use, the first-stage low-temperature condensation alkaline spray device 202 can cool the flue gas to below 35°C to condense water vapor, reduce the temperature point of the saturated flue gas, and efficiently remove harmful substances in the flue gas.
[0030] When working, first, the flue gas is transported to the curved tube 104 through the air inlet pipe 105, and the flue gas in the curved tube 104 is preliminarily cooled by the first heat exchanger 405 and the second heat exchanger 406, and then the cooling fan 5 is started to efficiently cool the first heat exchanger 405 and the second heat exchanger 406, so as to reduce the temperature and volume of the flue gas and slow down its rising flow rate, and the reaction time of the flue gas with the desulfurization liquid in the original desulfurization tower 101 is also prolonged, and the desulfurization efficiency will be higher;
[0031] Next, the flue gas is cooled to below 35°C by the first-stage low-temperature condensation alkaline spray device 202 to condense water vapor, thereby lowering the temperature point of the saturated flue gas and efficiently removing harmful substances in the flue gas, and the cooling water in the first-stage wet electrostatic precipitator demister 201 and the two-stage wet electrostatic precipitator demister 203 is discharged to the outside through the drain pipe 106;
[0032] Then, the blower 301 is used to transport the external hot air into the desulfurization tower 101 to heat the flue gas discharged from the first-stage wet electrostatic precipitator 201 and the second-stage wet electrostatic precipitator 203 by 8 to 10°C before discharging it, so that the water vapor in the flue gas is away from the saturation point and mixed with the drier cold air, thereby preventing the generation of white smoke.
[0033] Through the above steps, the flue gas in the curved tube 104 can be efficiently dissipated through the first heat exchanger 405 and the second heat exchanger 406 to improve the desulfurization efficiency of the device, and the flue gas is cooled to below 35°C by the first-level low-temperature condensation alkaline spray device 202 to condense water vapor to efficiently remove harmful substances in the flue gas, and then the blower 301 is used to transport the external hot air to the desulfurization tower 101 to heat the flue gas discharged from the wet electrostatic precipitator and demister by 8 to 10°C before discharge, so that the water vapor in the flue gas is away from the saturation point and will not produce white smoke after mixing with the drier cold air, thereby solving the problem that the flue gas desulfurization device is often difficult to efficiently desulfurize and treat colored flue gas when in use.
[0034] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.
Claims
1. A flue gas desulfurization condensation and desulphurization device, comprising a heat dissipation fan (5), characterized in that: The invention also comprises a tower body component, a spray component, an air intake component and a heat dissipation component. The inner wall of the tower body component is provided with a spray component having a two-stage dust removal and mist removal structure and a first-stage condensation alkaline spray structure. The left outer wall of the tower body component is provided with an air intake component for assisting in heating up the flue gas through a pipeline. The flue gas pipeline of the tower body component is provided with a heat dissipation component for air cooling the flue gas. Heat dissipation fans (5) are provided at the upper and lower ends of the heat dissipation component. The tower body component comprises a desulfurization tower (101), a connecting groove (102), a smoke exhaust pipe (103), a curved pipe (104), an air intake pipe (105) and a drainage pipe (106). The lower outer wall of the desulfurization tower (101) is provided with three connecting grooves (102) distributed at equal intervals. The front outer wall of the desulfurization tower (101) is fixedly connected with a drainage pipe (106). The upper end of the desulfurization tower (101) is fixedly connected with a smoke exhaust pipe (103).
2. The flue gas desulfurization condensation and desulphurization device according to claim 1 is characterized in that: A curved tube (104) is fixedly connected to the outer wall of the left end of the desulfurization tower (101), and an air inlet pipe (105) is fixedly connected to the left end of the curved tube (104). The curved tube (104) is a curved heat dissipation pipeline.
3. The flue gas desulfurization condensation and desulphurization device according to claim 2 is characterized in that: The heat dissipation component includes a shell (401), a through hole (402), a dustproof plate (403), a mounting groove (404), a first heat exchanger (405), a second heat exchanger (406), a first bolt (407) and a second bolt (408). The first heat exchanger (405) and the second heat exchanger (406) are respectively arranged at the front and rear ends of the curved tube (104). The inner walls of the first heat exchanger (405) and the second heat exchanger (406) are in contact with the outer wall of the curved tube (104). The first heat exchanger (405) and the second heat exchanger (406) are fixed by the first bolt (407) and the second bolt (408). The first bolt (407) is threadedly installed in the second bolt (408).
4. The flue gas desulfurization condensation and desulphurization device according to claim 3 is characterized in that: The outer walls of the first heat exchanger (405) and the second heat exchanger (406) are installed with a shell (401), the upper and lower ends of the shell (401) are penetrated with installation grooves (404), and the left and right ends of the shell (401) are penetrated with through holes (402).
5. The flue gas desulfurization condensation and desulphurization device according to claim 4 is characterized in that: Dustproof plates (403) are fixedly connected to the inner walls of the front and rear ends of the housing (401), a heat dissipation fan (5) is fixedly connected to the mounting groove (404), and the through hole (402) is adapted to the left and right output ports of the curved tube (104).
6. The flue gas desulfurization condensation and desulphurization device according to claim 5 is characterized in that: The spray assembly comprises a first-stage wet electrostatic precipitator (201), a first-stage low-temperature condensation alkaline spray device (202) and a two-stage wet electrostatic precipitator (203). The first-stage wet electrostatic precipitator (201) and the first-stage low-temperature condensation alkaline spray device (202) are respectively arranged on the upper and lower sides of the central inner wall of the desulfurization tower (101). A first-stage low-temperature condensation alkaline spray device (202) is arranged between the first-stage wet electrostatic precipitator (201) and the first-stage low-temperature condensation alkaline spray device (202). The first-stage low-temperature condensation alkaline spray device (202) is installed on the central inner wall of the desulfurization tower (101). The first-stage wet electrostatic precipitator (201), the first-stage low-temperature condensation alkaline spray device (202) and the two-stage wet electrostatic precipitator (203) are respectively connected to the connection groove (102) through pipelines.
7. The flue gas desulfurization condensation and desulphurization device according to claim 6 is characterized in that: The air intake assembly comprises a blower (301) and an input pipe (302). The lower end of the output unit of the blower (301) is fixedly connected to the input pipe (302), and the other end of the input pipe (302) is installed on the upper outer wall of the desulfurization tower (101).