CN212999265U - Desulfurizing tower venturi extends structure and desulfurization system - Google Patents
Desulfurizing tower venturi extends structure and desulfurization system Download PDFInfo
- Publication number
- CN212999265U CN212999265U CN202020640712.0U CN202020640712U CN212999265U CN 212999265 U CN212999265 U CN 212999265U CN 202020640712 U CN202020640712 U CN 202020640712U CN 212999265 U CN212999265 U CN 212999265U
- Authority
- CN
- China
- Prior art keywords
- section
- venturi
- extension
- venturi tube
- flue gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a desulfurizing tower venturi extends structure and desulfurization system relates to semidry desulfurization technical field, include: the gradually expanding section is a circular truncated cone-shaped shell and is arranged in an inverted manner, so that the gas-liquid speed is reduced, the pressure is increased, and the gradually expanding section is used for connecting a fluidized bed; the venturi tube is fixedly connected with the lower end of the gradually expanding section; the upper end of the Venturi tube is provided with an extension section which is arranged in the divergent section. The utility model discloses an extend into the extension section of gradual expansion section, guarantee angle and the speed of the efflux flue gas that produces after the venturi section accelerates, hold up the material in the fluidized bed completely, reduce subsiding of large granule flocculus.
Description
Technical Field
The utility model relates to a semi-dry desulfurization technical field especially relates to a desulfurizing tower venturi extends structure and desulfurization system.
Background
The main domestic and overseas desulfurization technologies are mainly divided into a wet method, a dry method and a semi-dry method, wherein the dry method and the semi-dry method have better desulfurization effects and are respectively a circulating fluidized bed process system, and the main equipment of the system is a desulfurization tower. The desulfurizing tower mainly comprises a Venturi tube, a cylinder body, an inlet flue, an outlet flue and the like. The venturi tube has the function of making the air flow in the region form turbulent flow to mutually impact and rub, so that the by-products formed on the surface of the desulfurizer fall off, thereby exposing the surface of the desulfurizer particles and further performing desulfurization reaction.
The semidry desulfurization flue gas enters the desulfurization tower from an inlet flue at the bottom of the desulfurization tower, the airflow direction upwards enters a Venturi tube, the flue gas enters a fluidized bed section through acceleration of the Venturi tube at the bottom of the desulfurization tower, and the gas-solid phases of the materials in the circulating fluidized bed generate violent turbulence and are fully contacted under the action of the airflow. During the rising process, the continuously formed floccules return downwards, and the floccules are continuously disintegrated in the violent turbulence and lifted by the air flow again.
The joint form of the outlet of the venturi tube and the divergent section is usually butt welding, and the structural form easily causes the flue gas at the outlet of the venturi tube to diffuse along with the divergent section, so that large granular floccules are settled to the inlet flue at the bottom of the absorption tower.
SUMMERY OF THE UTILITY MODEL
The utility model provides a desulfurizing tower venturi extends structure and desulfurization system.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a desulfurization tower venturi extension structure comprising:
the gradually expanding section is a circular truncated cone-shaped shell and is arranged in an inverted manner, so that the gas-liquid speed is reduced, the pressure is increased, and the gradually expanding section is used for connecting a fluidized bed;
the venturi tube is fixedly connected with the lower end of the gradually expanding section;
the upper end of the Venturi tube is provided with an extension section which is arranged in the divergent section.
Specifically, the length of the extension section is 100-200 mm.
Specifically, the inner diameter of the Venturi tube is consistent with the inner diameter of the divergent section, and the outer diameter of the Venturi tube is consistent with the outer diameter of the divergent section.
Further, the venturi extends into the diverging section.
Further, the venturi pipe is in butt joint with the divergent section.
Further, the extension section is fixed at the upper end of the Venturi tube through welding.
Further, the fixing position of the venturi tube and the extension section is also fixedly connected with the divergent section.
The utility model discloses an extend into the extension section of gradual expansion section, guarantee angle and the speed of the efflux flue gas that produces after the venturi section accelerates, hold up the material in the fluidized bed completely, reduce subsiding of large granule flocculus.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of embodiment 2 of the present invention;
fig. 3 is a schematic structural diagram of embodiment 3 of the present invention.
In the figure: 100 venturi tubes, 200 divergent sections, 300 extended sections.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only 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 therefore, should not be construed as limiting the present invention.
Example 1:
referring to fig. 1, a venturi extension structure of a desulfurization tower includes:
the gradually expanding section 200 is a circular truncated cone-shaped shell and is arranged in an inverted manner, the gas-liquid speed is reduced, the pressure rises, the condensation effect taking dust particles as condensation nuclei is accelerated, the dust particles are condensed into dust-containing liquid drops with larger diameters, and the dust-containing liquid drops are captured in the demister and are used for being connected with the fluidized bed; the semidry desulfurization flue gas enters the desulfurization tower from an inlet flue at the bottom of the desulfurization tower, the airflow direction upwards enters the Venturi tube 100 from the flue, the flue gas is accelerated by the Venturi tube 100 and enters a fluidized bed section, and the gas phase and the solid phase in the circulating fluidized bed generate violent turbulence under the action of the airflow and are fully contacted. During the rising process, the continuously formed floccules return downwards, and the floccules are continuously disintegrated in the violent turbulence and lifted by the air flow again.
A venturi tube 100 fixedly connected to the lower end of the diverging section 200; the venturi 100 causes the air flow to be turbulent; the Venturi tube 100 enables the flue gas and reactants to reach a violent turbulent flow state, the absorbent circulates for many times and has long contact reaction time with the flue gas, and the utilization rate and the desulfurization efficiency of the absorbent are greatly improved;
the flue gas enters from the flue; the flue is arranged at the bottom of the desulfurization tower, and the flue gas sequentially passes through the gradual change section and the Venturi tube 100 from the bottom of the flue to the top; the flue gas enters the fluidized bed section through the acceleration of the Venturi tube 100, the highest flue gas flow velocity of the Venturi section is 55m/s, and the jet flue gas generated after the acceleration of the Venturi section completely supports the materials in the fluidized bed.
The upper end of the venturi tube 100 is provided with an extension 300, and the extension 300 is disposed in the diverging section 200. The extension 300 has a length of 100 mm.
The inner diameter of the venturi tube 100 is identical to the inner diameter of the diverging section 200, and the outer diameter of the venturi tube 100 is identical to the outer diameter of the diverging section 200.
The extension 300 is integrally formed with the venturi 100. I.e. the venturi 100 extends into the diverging section 200. The portion of the venturi 100 extending into the diverging section 200 is the extension section 300. By extending into the extension section 300 of the divergent section 200, the angle and speed of the jet flue gas generated after acceleration by the venturi section are ensured, the material in the fluidized bed is completely supported, and the sedimentation of large granular floccules is reduced.
Example 2:
referring to fig. 2, a venturi extension structure of a desulfurization tower includes:
the gradually expanding section 200 is a circular truncated cone-shaped shell and is arranged in an inverted manner, the gas-liquid speed is reduced, the pressure rises, the condensation effect taking dust particles as condensation nuclei is accelerated, the dust particles are condensed into dust-containing liquid drops with larger diameters, and the dust-containing liquid drops are captured in the demister and are used for being connected with the fluidized bed; the semidry desulfurization flue gas enters the desulfurization tower from an inlet flue at the bottom of the desulfurization tower, the airflow direction upwards enters the Venturi tube 100 from the flue, the flue gas is accelerated by the Venturi tube 100 and enters a fluidized bed section, and the gas phase and the solid phase in the circulating fluidized bed generate violent turbulence under the action of the airflow and are fully contacted. During the rising process, the continuously formed floccules return downwards, and the floccules are continuously disintegrated in the violent turbulence and lifted by the air flow again.
A venturi tube 100 fixedly connected to the lower end of the diverging section 200; the venturi 100 causes the air flow to be turbulent; the Venturi tube 100 enables the flue gas and reactants to reach a violent turbulent flow state, the absorbent circulates for many times and has long contact reaction time with the flue gas, and the utilization rate and the desulfurization efficiency of the absorbent are greatly improved;
the flue gas enters from the flue; the flue is arranged at the bottom of the desulfurization tower, and the flue gas sequentially passes through the gradual change section and the Venturi tube 100 from the bottom of the flue to the top; the flue gas enters the fluidized bed section through the acceleration of the Venturi tube 100, the highest flue gas flow velocity of the Venturi section is 55m/s, and the jet flue gas generated after the acceleration of the Venturi section completely supports the materials in the fluidized bed.
The upper end of the venturi tube 100 is provided with an extension 300, and the extension 300 is disposed in the diverging section 200. The length of the extension section 300 is 100mm
The inner diameter of the venturi tube 100 is identical to the inner diameter of the diverging section 200, and the outer diameter of the venturi tube 100 is identical to the outer diameter of the diverging section 200.
The venturi 100 extends into the diverging section 200. The venturi 100 extends into the diverging section 200 for a length of 50 mm. The extension 300 is fixed to the upper end of the venturi tube 100 by welding. The portion of the venturi 100 extending into the diverging section 200 is the extension section 300. By extending into the extension section 300 of the divergent section 200, the angle and speed of the jet flue gas generated after acceleration by the venturi section are ensured, the material in the fluidized bed is completely supported, and the sedimentation of large granular floccules is reduced.
Example 3:
referring to fig. 3, a venturi extension structure of a desulfurization tower includes:
the gradually expanding section 200 is a circular truncated cone-shaped shell and is arranged in an inverted manner, the gas-liquid speed is reduced, the pressure rises, the condensation effect taking dust particles as condensation nuclei is accelerated, the dust particles are condensed into dust-containing liquid drops with larger diameters, and the dust-containing liquid drops are captured in the demister and are used for being connected with the fluidized bed; the semidry desulfurization flue gas enters the desulfurization tower from an inlet flue at the bottom of the desulfurization tower, the airflow direction upwards enters the Venturi tube 100 from the flue, the flue gas is accelerated by the Venturi tube 100 and enters a fluidized bed section, and the gas phase and the solid phase in the circulating fluidized bed generate violent turbulence under the action of the airflow and are fully contacted. During the rising process, the continuously formed floccules return downwards, and the floccules are continuously disintegrated in the violent turbulence and lifted by the air flow again.
A venturi tube 100 fixedly connected to the lower end of the diverging section 200; the venturi 100 causes the air flow to be turbulent; the Venturi tube 100 enables the flue gas and reactants to reach a violent turbulent flow state, the absorbent circulates for many times and has long contact reaction time with the flue gas, and the utilization rate and the desulfurization efficiency of the absorbent are greatly improved;
the flue gas enters from the flue; the flue is arranged at the bottom of the desulfurization tower, and the flue gas sequentially passes through the gradual change section and the Venturi tube 100 from the bottom of the flue to the top; the flue gas enters the fluidized bed section through the acceleration of the Venturi tube 100, the highest flue gas flow velocity of the Venturi section is 55m/s, and the jet flue gas generated after the acceleration of the Venturi section completely supports the materials in the fluidized bed.
The upper end of the venturi tube 100 is provided with an extension 300, and the extension 300 is disposed in the diverging section 200. The length of the extension section 300 is 100mm
The inner diameter of the venturi tube 100 is identical to the inner diameter of the diverging section 200, and the outer diameter of the venturi tube 100 is identical to the outer diameter of the diverging section 200.
The venturi 100 is connected in an abutting relationship with the diverging section 200. The extension 300 is fixed to the upper end of the venturi tube 100 by welding. The venturi tube 100 is fixed to the extension section 300 and is also fixedly connected to the diverging section 200. The portion of the venturi 100 extending into the diverging section 200 is the extension section 300. By extending into the extension section 300 of the divergent section 200, the angle and speed of the jet flue gas generated after acceleration by the venturi section are ensured, the material in the fluidized bed is completely supported, and the sedimentation of large granular floccules is reduced.
Example 4:
a desulfurization tower venturi extension structure comprising:
the gradually expanding section 200 is a circular truncated cone-shaped shell and is arranged in an inverted manner, the gas-liquid speed is reduced, the pressure rises, the condensation effect taking dust particles as condensation nuclei is accelerated, the dust particles are condensed into dust-containing liquid drops with larger diameters, and the dust-containing liquid drops are captured in the demister and are used for being connected with the fluidized bed; the semidry desulfurization flue gas enters the desulfurization tower from an inlet flue at the bottom of the desulfurization tower, the airflow direction upwards enters the Venturi tube 100 from the flue, the flue gas is accelerated by the Venturi tube 100 and enters a fluidized bed section, and the gas phase and the solid phase in the circulating fluidized bed generate violent turbulence under the action of the airflow and are fully contacted. During the rising process, the continuously formed floccules return downwards, and the floccules are continuously disintegrated in the violent turbulence and lifted by the air flow again.
A venturi tube 100 fixedly connected to the lower end of the diverging section 200; the venturi 100 causes the air flow to be turbulent; the Venturi tube 100 enables the flue gas and reactants to reach a violent turbulent flow state, the absorbent circulates for many times and has long contact reaction time with the flue gas, and the utilization rate and the desulfurization efficiency of the absorbent are greatly improved;
the flue gas enters from the flue; the flue is arranged at the bottom of the desulfurization tower, and the flue gas sequentially passes through the gradual change section and the Venturi tube 100 from the bottom of the flue to the top; the flue gas enters the fluidized bed section through the acceleration of the Venturi tube 100, the highest flue gas flow velocity of the Venturi section is 55m/s, and the jet flue gas generated after the acceleration of the Venturi section completely supports the materials in the fluidized bed.
The upper end of the venturi tube 100 is provided with an extension 300, and the extension 300 is disposed in the diverging section 200. The length of the extension section 300 is 200mm
The inner diameter of the venturi tube 100 is identical to the inner diameter of the diverging section 200, and the outer diameter of the venturi tube 100 is identical to the outer diameter of the diverging section 200.
The venturi 100 is connected in an abutting relationship with the diverging section 200. The extension 300 is fixed to the upper end of the venturi tube 100 by welding. The venturi tube 100 is fixed to the extension section 300 and is also fixedly connected to the diverging section 200. The portion of the venturi 100 extending into the diverging section 200 is the extension section 300. By extending into the extension section 300 of the divergent section 200, the angle and speed of the jet flue gas generated after acceleration by the venturi section are ensured, the material in the fluidized bed is completely supported, and the sedimentation of large granular floccules is reduced.
Example 5:
a desulfurization tower venturi extension structure comprising:
the gradually expanding section 200 is a circular truncated cone-shaped shell and is arranged in an inverted manner, the gas-liquid speed is reduced, the pressure rises, the condensation effect taking dust particles as condensation nuclei is accelerated, the dust particles are condensed into dust-containing liquid drops with larger diameters, and the dust-containing liquid drops are captured in the demister and are used for being connected with the fluidized bed; the semidry desulfurization flue gas enters the desulfurization tower from an inlet flue at the bottom of the desulfurization tower, the airflow direction upwards enters the Venturi tube 100 from the flue, the flue gas is accelerated by the Venturi tube 100 and enters a fluidized bed section, and the gas phase and the solid phase in the circulating fluidized bed generate violent turbulence under the action of the airflow and are fully contacted. During the rising process, the continuously formed floccules return downwards, and the floccules are continuously disintegrated in the violent turbulence and lifted by the air flow again.
A venturi tube 100 fixedly connected to the lower end of the diverging section 200; the venturi 100 causes the air flow to be turbulent; the Venturi tube 100 enables the flue gas and reactants to reach a violent turbulent flow state, the absorbent circulates for many times and has long contact reaction time with the flue gas, and the utilization rate and the desulfurization efficiency of the absorbent are greatly improved;
the flue gas enters from the flue; the flue is arranged at the bottom of the desulfurization tower, and the flue gas sequentially passes through the gradual change section and the Venturi tube 100 from the bottom of the flue to the top; the flue gas enters the fluidized bed section through the acceleration of the Venturi tube 100, the highest flue gas flow velocity of the Venturi section is 55m/s, and the jet flue gas generated after the acceleration of the Venturi section completely supports the materials in the fluidized bed.
The upper end of the venturi tube 100 is provided with an extension 300, and the extension 300 is disposed in the diverging section 200. The length of the extension section 300 is 140mm
The inner diameter of the venturi tube 100 is identical to the inner diameter of the diverging section 200, and the outer diameter of the venturi tube 100 is identical to the outer diameter of the diverging section 200.
The venturi 100 is connected in an abutting relationship with the diverging section 200. The extension 300 is fixed to the upper end of the venturi tube 100 by welding. The venturi tube 100 is fixed to the extension section 300 and is also fixedly connected to the diverging section 200. The portion of the venturi 100 extending into the diverging section 200 is the extension section 300. By extending into the extension section 300 of the divergent section 200, the angle and speed of the jet flue gas generated after acceleration by the venturi section are ensured, the material in the fluidized bed is completely supported, and the sedimentation of large granular floccules is reduced.
Example 6:
a desulfurization system using a venturi extension of a desulfurization tower as described in example 1.
Example 7:
a desulfurization system using a venturi extension of a desulfurization tower as described in example 2.
Example 8:
a desulfurization system using a venturi extension of a desulfurization tower as described in example 3.
Example 9:
a desulfurization system using a venturi extension of a desulfurization tower as described in example 4.
Example 10:
a desulfurization system using a venturi extension of a desulfurization tower as described in example 5.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (8)
1. A desulfurizing tower venturi extends structure which characterized in that includes:
the divergent section (200) is in a circular truncated cone-shaped shell and is arranged in an inverted manner, so that the gas-liquid speed is reduced, the pressure rises, and the divergent section is used for connecting the fluidized bed;
the Venturi tube (100) is fixedly connected with the lower end of the divergent section (200);
an extension section (300) is arranged at the upper end of the Venturi tube (100), and the extension section (300) is arranged in the divergent section (200).
2. The venturi extension structure of claim 1, wherein the length of the extension section (300) is 100-200 mm.
3. The desulfurization tower venturi extension structure of claim 1, wherein the inner diameter of the venturi tube (100) coincides with the inner diameter of the diverging section (200), and the outer diameter of the venturi tube (100) coincides with the outer diameter of the diverging section (200).
4. A desulfurization tower venturi extension structure in accordance with any one of claims 1-3, characterized in that the venturi tube (100) extends into the diverging section (200).
5. A venturi extension structure of a desulfurization tower according to any one of claims 1-3, characterized in that the venturi tube (100) is butt-jointed with the diverging section (200).
6. The desulfurization tower venturi extension structure of claim 4, wherein the extension section (300) is fixed at the upper end of the venturi tube (100) by welding.
7. The venturi extension structure of claim 6, wherein the venturi tube (100) is fixed to the extension section (300) and is further fixedly connected to the diverging section (200).
8. A desulfurization system, characterized by: use of a venturi extension of a desulfurization tower as recited in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020640712.0U CN212999265U (en) | 2020-04-25 | 2020-04-25 | Desulfurizing tower venturi extends structure and desulfurization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020640712.0U CN212999265U (en) | 2020-04-25 | 2020-04-25 | Desulfurizing tower venturi extends structure and desulfurization system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212999265U true CN212999265U (en) | 2021-04-20 |
Family
ID=75484568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020640712.0U Active CN212999265U (en) | 2020-04-25 | 2020-04-25 | Desulfurizing tower venturi extends structure and desulfurization system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212999265U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114699906A (en) * | 2022-03-16 | 2022-07-05 | 国能(山东)能源环境有限公司 | Stable venturi device for semidry desulfurization and evaluation model |
-
2020
- 2020-04-25 CN CN202020640712.0U patent/CN212999265U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114699906A (en) * | 2022-03-16 | 2022-07-05 | 国能(山东)能源环境有限公司 | Stable venturi device for semidry desulfurization and evaluation model |
| CN114699906B (en) * | 2022-03-16 | 2024-06-04 | 国能(山东)能源环境有限公司 | Stable venturi device for semi-dry desulfurization |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107261781B (en) | A kind of desulphurization denitration dust pelletizing system | |
| CN202569944U (en) | Cyclone pneumatic vortex desulfurization emulsifier and vortex emulsification desulfurization tower with Venturi tubes | |
| CN201524521U (en) | Large wet desulphurization device with wet-type electrostatic demister | |
| CN212999265U (en) | Desulfurizing tower venturi extends structure and desulfurization system | |
| CN209333489U (en) | A kind of efficient denitrating tower | |
| CN103316576A (en) | Desulfurizing and demisting combined tower | |
| CN206604374U (en) | A kind of desulfurizing tower | |
| CN105056671A (en) | Desulfurating, dust-removing, demisting and water-saving process for wet-type desulfurization tower and apparatus thereof | |
| CN204768247U (en) | Defogging wet -type desulfurizing tower system | |
| CN212039834U (en) | Desulfurization tower venturi and flue connection structure and desulfurization system | |
| CN215842431U (en) | Flue type gas mixing reactor | |
| CN207722608U (en) | A kind of type smoke pollutant removal device with Venturi tube | |
| CN215506306U (en) | Flue gas treatment device | |
| CN114931850A (en) | Dry desulfurization, denitrification and dust removal integrated system | |
| CN201823471U (en) | Waste water zero emission wet-method flue-gas desulfurization device | |
| CN201304320Y (en) | Semidry desulfurizing tower device with Venturi pipe | |
| CN209451645U (en) | A kind of interior generating device formed convenient for Dual-Phrase Distribution of Gas olid of semi-dry desulphurization tower | |
| CN2384671Y (en) | Desulfurizing dust remover by wet method | |
| CN106902610A (en) | A kind of sound coalescence synergy demister | |
| CN208526266U (en) | A kind of spray-absorption device for wet desulphurization | |
| CN220496009U (en) | Desulfurizing and dedusting tower | |
| CN202569877U (en) | High-efficiency wet desulphurization dedusting device | |
| CN112058041A (en) | Cluster type desulfurizing tower | |
| CN206064040U (en) | A kind of desulfurizing dust-collector | |
| CN211411541U (en) | Novel cyclone multiplier for waste gas treatment equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |