CN219355576U - Defogging blade for turbine defogging device - Google Patents
Defogging blade for turbine defogging device Download PDFInfo
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- CN219355576U CN219355576U CN202223255064.5U CN202223255064U CN219355576U CN 219355576 U CN219355576 U CN 219355576U CN 202223255064 U CN202223255064 U CN 202223255064U CN 219355576 U CN219355576 U CN 219355576U
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- blade
- defogging
- turbine
- demisting
- turbine disk
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
A defogging blade for turbine defogging device, includes transmission, turbine disk, defogging blade, blade leading edge, blade trailing edge, blade backplate, blade web, blade cavity, strengthening rib, and the blade leading edge becomes circular arc, and blade backplate and blade web are spline curve, and the blade cavity is formed by blade leading edge, blade trailing edge, blade backplate, the parcel of blade web, has arranged crisscross strengthening rib in the blade cavity. While the conventional demisting blade is basically of a single type, has low demisting efficiency and is easy to accumulate solids or cause scaling, the demisting blade is of a cavity structure integrally formed with or combined with a turbine disk, has the property of combining inertial separation and centrifugal separation, improves the strength and rotation stability of the blade, improves the uniformity of a flow field, reduces flow resistance and improves demisting efficiency.
Description
Technical Field
The utility model belongs to the field of gas-liquid separation, and particularly relates to a defogging blade for a turbine defogging device, which is arranged in gas-liquid separation equipment.
Background
The demisting technology is a technology for efficiently separating and recovering mist droplets carried in air flow, and can be divided into gravity sedimentation, electrostatic separation, inertial separation, filtration separation, centrifugal separation and the like in principle, and common demisting equipment comprises a gravity settler (more than 75 mu m), a plate type demister, an electrostatic demister, a gas-liquid filtration separator, a cyclone separator and the like.
Mist droplets, typically greater than 50 μm in diameter, can be separated by gravity sedimentation; mist droplets of 5 μm or more can be collected into larger particles for smaller mist particles by inertial collision and centrifugal separation, or by fiber filters, and electrostatic mist eliminators. The principle of the plate type demister is that the inertia of fog drops is utilized, when the airflow carrying the fog drops encounters a change in direction along the flow of a demister channel, the movement direction of the fog drops is kept unchanged, and the fog drops move to a demister plate to form a water film, so that the fog drops are separated from the airflow. The plate type demister has the characteristics of simple structure and large treatment capacity, but has poor mist separation effect on mist droplets with average particle diameters of 25 mu m. The centrifugal separation principle is that the mist drops in the airflow generate larger centrifugal force due to the high-speed rotation of the demister, the generated centrifugal force enables the mist drops to collide on the blades of the separator to be trapped and condensed so as to achieve the gas-liquid separation effect, namely, the gas-liquid separation purpose is achieved by utilizing the centrifugal force generated when the airflow makes rotary motion, and the centrifugal separation method is suitable for the mist drop separation of 5-75 mu m, but the separation effect is influenced by the gas-liquid treatment capacity and has larger pressure drop.
The traditional demisting device is basically of a single type, the demisting efficiency is low, solids are easy to accumulate or scale is easy to cause, and the demisting blade disclosed by the utility model is of a cavity structure which is integrally formed with a turbine disc or combined with the turbine disc, has the property of combining inertial separation and centrifugal separation, improves the strength and rotation stability of the blade, improves the uniformity of a flow field, reduces flow resistance and improves the demisting efficiency.
Disclosure of Invention
The utility model aims to provide a defogging blade for a turbine defogging device, which has the property of combining inertial separation and centrifugal separation, and can improve flow field uniformity, reduce flow resistance and improve defogging efficiency.
In order to solve the problems, the utility model adopts the following technical scheme: the utility model provides a defogging blade for turbine defogging device, includes transmission, turbine disk, defogging blade, blade leading edge, blade trailing edge, blade backplate, blade web, blade cavity, strengthening rib, and defogging blade connects on the turbine disk, and the turbine disk is connected on transmission, and defogging blade is the cavity structure with turbine disk integrated into one piece or combination formula, and blade backplate and blade web are spline curve structure, smooth blade structure is favorable to reducing the flow resistance of gas, is favorable to the separation of droplet on the blade surface, has increased the effective area of contact of droplet and blade; the blade cavity is formed by the parcel of blade leading edge, blade trailing edge, blade backplate, blade web, has arranged vertically and horizontally staggered's strengthening rib in the blade cavity, and defogging blade evenly distributed is in the circumference direction of turbine disk, and whole defogging blade is unified thickness, and defogging blade's height is the height of turbine disk, and defogging blade is close to the width of turbine disk direction great, and the width that is close to the blade trailing edge direction is less, and the change of blade width is the gentle trend that increases earlier and then reduces.
The front edge of the blade is arc-shaped, the distance from the center of the front edge of the blade to the outer diameter of the turbine disc is the radius of the arc, the included angle between the tangent line of the front edge of the blade towards the back plate of the blade and the horizontal central line of the arc towards the tail edge of the blade is the attack angle of the blade, the attack angle of the blade is an acute angle, the greater the attack angle of the blade is, the greater the turbulence degree of the airflow is, but the secondary separation of the airflow is easy to cause, so the selection of the attack angle of the blade is comprehensively considered from the two aspects of the turbulence degree and the flow field uniformity of the airflow.
The included angle between the tangent line of the front edge of the blade in the direction of the blade back plate and the tangent line of the tail edge of the blade in the direction of the blade back plate is a blade bent angle, the range of the blade bent angle is an acute angle, the larger the blade bent angle is, the larger the turbulence degree of the airflow is, but the concentrated falling of fog drops on the tail edge of the blade is not facilitated, the updating of the contact area between the defogging blade and the fog drops in the airflow is not facilitated, the defogging efficiency is reduced, and therefore the selection of the blade bent angle is comprehensively considered from the turbulence degree and the defogging efficiency of the airflow.
Compared with the prior art, the demisting blade disclosed by the utility model is of a cavity structure which is integrally formed or combined with the turbine disc, has the property of combining inertial separation and centrifugal separation, and is suitable for the wastewater treatment or the absorption process of a liquid phase absorbent with large flow, small fog drop particle size and more scale substances.
Drawings
The utility model will be elucidated in more detail with the aid of the accompanying drawings, in which like reference numerals denote like elements.
Fig. 1 is a detailed construction diagram showing a defogging blade for a turbine defogging device.
FIG. 2 is a schematic diagram illustrating the overall arrangement of demister blades for a turbine demister.
In the figures, a transmission device 1, a turbine disk 2, a defogging blade 3, a blade front edge 4, a blade tail edge 5, a blade back plate 6, a blade web 7, a blade cavity 8 and a reinforcing rib 9 are adopted.
Detailed Description
Embodiments of the present utility model will be described in detail below with reference to the drawings, and examples of the present utility model and features of the examples may be combined with each other without collision.
As shown in figure 1, a defogging blade for turbine defogging device, including transmission, turbine disk, defogging blade, blade leading edge, blade trailing edge, blade backplate, blade web, blade cavity, strengthening rib, defogging blade connects on the turbine disk, turbine disk connects on transmission, defogging blade be with turbine disk integrated into one piece or combination's cavity structure, to high-flow gas-liquid separation, adopt integrated into one piece type, to low-flow gas-liquid separation, adopt the combination formula, defogging blade's material is the same with turbine disk's material, integrated into one piece or tight combination of being convenient for, the blade cavity is wrapped up by blade leading edge, blade trailing edge, blade backplate, blade web and is formed, criss-cross strengthening rib has been arranged in the blade cavity.
The front edge of the blade is arc-shaped, the distance from the center of the front edge of the blade to the outer diameter of the turbine disc is the radius of the arc, the radius of the arc is 0.03-0.06 times of the diameter of the turbine disc, the front edge of the blade is connected with the web plate of the blade and the backboard of the blade in a tangential manner, and the web plate of the blade and the backboard of the blade are in spline curve structures; the included angle between the tangent line of the front edge of the blade towards the back plate of the blade and the horizontal central line of the circular arc towards the tail edge of the blade is the attack angle of the blade, and the attack angle of the blade ranges from 10 degrees to 45 degrees; the included angle between the tangent line of the front edge of the blade towards the direction of the blade back plate and the tangent line of the tail edge of the blade towards the direction of the blade back plate is a blade bending angle, and the range of the blade bending angle is 20-50 degrees.
As shown in FIG. 2, the defogging blades are uniformly distributed in the circumferential direction of the turbine disk, the number of the defogging blades is 9, the defogging blades are only one embodiment, in the specific implementation process, the number of the defogging blades is an odd number, the number range is 5-15, the base number blades have better dynamic balance, the defogging blades are not easy to vibrate, and the length of the defogging blades is 0.2-1.2 times of the diameter of the turbine disk. The thickness range of defogging blade is 1mm-6mm, and whole blade is unified thickness, and defogging blade's height is the height of turbine disc.
When the defogging blade rotates, the centrifugal force born by the blade is large, and the inside of the defogging blade generates large stress to deform the blade, and criss-cross reinforcing ribs arranged in the cavity of the blade increase the strength of the blade and prevent the blade from deforming. The defogging blade is close to the width of turbine disk direction great, is close to the width of blade trailing edge direction less, and the change of blade width is the gentle trend that increases earlier and then reduces, has improved the intensity and the rotatory stability of blade, prevents the blade damage, has improved the life of blade, has both guaranteed gaseous throughput, has reduced flow resistance again.
While the exemplary embodiments of the present utility model have been described, the present utility model is not limited to the above embodiments, and various modifications may be made thereto, and if such modifications fall within the scope of the claims and their equivalents, the present utility model is still within the scope of protection.
Claims (6)
1. A defogging blade for turbine defogging device, a serial communication port, including transmission, turbine disk, defogging blade, blade leading edge, blade trailing edge, blade backplate, blade web, blade cavity, strengthening rib, defogging blade connects on the turbine disk, turbine disk connects on transmission, defogging blade be with turbine disk integrated into one piece or the cavity structure of combination, defogging blade's material is the same with the material of turbine disk, integrated into one piece or tight combination of being convenient for, blade backplate and blade web are spline curve structure, the blade cavity is formed by blade leading edge, blade trailing edge, blade backplate, blade web parcel, has arranged vertically and horizontally staggered's strengthening rib in the blade cavity.
2. A demisting blade for a turbine demister according to claim 1, wherein the blade leading edge is arc-shaped, the distance from the center of the blade leading edge to the outer diameter of the turbine disk is the radius of the arc, and the radius of the arc is 0.03-0.06 times the diameter of the turbine disk.
3. The demisting blade for a turbine demister according to claim 1, wherein the demisting blades are uniformly distributed in the circumferential direction of the turbine disk, the number of demisting blades is an odd number, the demisting blades are 0.2 to 1.2 times the diameter of the turbine disk in length, and the height is the same as the height of the turbine disk.
4. The demisting blade for a turbine demisting device according to claim 1, wherein the wall thickness of the demisting blade ranges from 1mm to 6mm, the entire blade is uniform in thickness, the height of the demisting blade is the height of a turbine disk, the width of the demisting blade in the direction close to the turbine disk is larger, the width in the direction close to the trailing edge of the blade is smaller, and the change of the width of the blade is a gradual trend of increasing first and then decreasing.
5. A demister blade for a turbine demister according to claim 1, wherein the angle between a tangent to the blade leading edge in the direction of the blade back plate and a horizontal center line of the circular arc in the direction of the blade trailing edge is the blade attack angle, and the blade attack angle ranges from 10 ° to 45 °.
6. A demister blade for a turbine demister according to claim 1, wherein the angle between the tangent to the blade leading edge in the direction of the blade back plate and the tangent to the blade trailing edge in the direction of the blade back plate is a blade camber angle in the range of 20 ° -50 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223255064.5U CN219355576U (en) | 2022-12-06 | 2022-12-06 | Defogging blade for turbine defogging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223255064.5U CN219355576U (en) | 2022-12-06 | 2022-12-06 | Defogging blade for turbine defogging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219355576U true CN219355576U (en) | 2023-07-18 |
Family
ID=87139654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223255064.5U Active CN219355576U (en) | 2022-12-06 | 2022-12-06 | Defogging blade for turbine defogging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219355576U (en) |
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2022
- 2022-12-06 CN CN202223255064.5U patent/CN219355576U/en active Active
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