CN219701369U

CN219701369U - Streamline inertial stage blade with gradually-increased embedded hydrophobic grooves

Info

Publication number: CN219701369U
Application number: CN202321064142.5U
Authority: CN
Inventors: 章斌
Original assignee: Wuxi Baohong Environmental Protection Ship Co ltd
Current assignee: Wuxi Baohong Environmental Protection Ship Co ltd
Priority date: 2023-05-06
Filing date: 2023-05-06
Publication date: 2023-09-19
Anticipated expiration: 2033-05-06

Abstract

The utility model relates to a streamline inertial-stage blade with an gradually-increased embedded hydrophobic groove, the section of which is streamline, and the blade consists of two diversion sections, four hydrophobic grooves and five hydrophobic hooks. The outside structure and the diversion section of the water-repellent tank are all large-radius circular arcs, and adjacent components are connected in a tangent mode, so that the flow resistance loss can be effectively reduced, and the filtering efficiency threshold is improved. The radius of the drain groove is gradually increased from left to right, the drain capacity is strong, and the drain groove is suitable for high-flow-rate working conditions. In order to reduce secondary entrainment caused by flow separation under the high-speed condition, the blades are provided with four notches, and the edge parts of the front flow guiding section and the rear flow guiding section are in rounded transition. The utility model adopts the streamline multi-scale water-repellent tank, obtains higher air-water filtering efficiency and simultaneously reduces resistance loss under the conditions of large blade spacing and high air inlet flow rate, and has the advantages of light weight, easy processing, strong filtering performance and the like.

Description

Streamline inertial stage blade with gradually-increased embedded hydrophobic grooves

Technical Field

The utility model relates to the technical field of air inlet filtering devices, in particular to an increasing type embedded drain groove streamline inertial stage blade.

Background

The inertia-stage blade is arranged in a filtering device of the ventilating duct and is used for filtering out moisture and impurities in the air inlet channel and reducing the damage of moisture, salt and the like to the environment, equipment, personal health and the like. The inertial stage blade can effectively remove most of impurities in the channel, but causes certain resistance loss, and for a specific blade, the higher the filtering efficiency is, the larger the resistance loss is.

The inertial stage blade pitch has a severe impact on drag loss and for a particular blade, as the blade pitch decreases, the filtering efficiency decreases, but generally results in increased drag loss.

Referring to fig. 1, the inlet airflow speed of the conventional inertial blade under the working condition is: 1-7 m/s. The filtering efficiency has a bottleneck, and after the flow rate is higher than the critical speed, the secondary entrainment phenomenon is obvious, and the filtering efficiency is suddenly reduced. The traditional hydrophobic tank has single scale, the generated vortex scale is less, and the capability of capturing particles with different particle sizes is weaker.

The space size of the demister is fixed, and in the fixed space, the space can only be changed for specific blades to achieve high filtering efficiency, but the cost is increased; and the air inflow of the channel is controlled at any time, and the excessively high air inflow can cause excessively high circulation speed, so that the resistance loss is increased and the phenomenon of secondary entrainment is aggravated. There is therefore a need to develop low drag inertial stage blades suitable for high flow rates at low cost.

Disclosure of Invention

The utility model aims to provide a streamline inertial stage blade with an gradually-increased embedded hydrophobic groove, which solves the problems in the background technology.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the utility model provides an embedded hydrophobic groove streamline inertial stage blade of gradual increase, includes preceding water conservancy diversion section, hydrophobic groove and back water conservancy diversion section, the hydrophobic groove is equipped with a plurality ofly and is located between preceding water conservancy diversion section and the back water conservancy diversion section, the radius of hydrophobic groove increases step by step from the import to the export to do echelonment distribution along with the shape of blade.

In the above scheme, the hydrophobic groove is equipped with four, is first hydrophobic groove, second hydrophobic groove, third hydrophobic groove and fourth hydrophobic groove respectively, first hydrophobic groove and third hydrophobic groove are located the upper surface of blade, second hydrophobic groove and fourth hydrophobic groove are located the lower surface of blade.

Further, in the above scheme, the front diversion section is connected with the first diversion section through the first diversion hook, the first diversion section is connected with the second diversion section and the third diversion section through the second diversion hook respectively, the second diversion section is connected with the front end of the fourth diversion section through the third diversion hook, the third diversion section is connected with the back of the fourth diversion section through the fourth diversion hook, and the tail end of the fourth diversion section is connected with the back diversion section through the fifth diversion hook.

Further, in the above scheme, the opening directions of the first drain tank and the third drain tank are opposite to the opening directions of the second drain tank and the fourth drain tank; the first and third water-repellent tanks protrude inward in the directions of the first and third water-repellent tanks, and the second and fourth water-repellent tanks protrude outward in the directions of the second and fourth water-repellent tanks.

Further, in the above scheme, the inner side of the straight line section in the front diversion section is gently tangent to the circular arc section connected with the first drainage hook, and the rear diversion section is gently tangent to the circular arc section connected with the fifth drainage hook.

Further, in the above scheme, the angle between the front diversion section and the first drainage hook is 80-110 degrees, and the angle between the rear diversion section and the fifth drainage hook is 130-160 degrees.

Furthermore, in the above scheme, the edges of the front diversion section, the first drainage hook, the second drainage hook, the third drainage hook, the fourth drainage hook, the fifth drainage hook and the rear diversion section respectively adopt rounded corner transition.

Further, in the above scheme, the inclination angle of the first hydrophobic hook is 30 ° to 40 °, the inclination angles of the second hydrophobic hook and the fourth hydrophobic hook are 140 ° to 150 °, and the inclination angles of the third hydrophobic hook and the fifth hydrophobic hook are 230 ° to 240 °.

In the scheme, the opening angle of the first water drain groove is 40-80 degrees, the opening angle of the second water drain groove is 0-30 degrees, the opening angle of the third water drain groove is 0-40 degrees, and the opening angle of the fourth water drain groove is 20-80 degrees.

Compared with the prior art, the utility model has the beneficial effects that: the streamline gradually-increased built-in grooves are adopted to form vortex flows with different dimensions, so that the capability of capturing particles with different particle diameters is strong; the whole blade profile is streamline, and the structures are in smooth arc transition, so that the resistance loss is reduced; the large-radius arc groove is adopted, so that secondary entrainment can be effectively reduced to a certain extent; under the conditions of large blade spacing and high air inlet flow rate, the high air-water filtering efficiency is obtained, and meanwhile, the resistance loss is reduced, so that the air-water filtering device has the advantages of light weight, easiness in processing, strong filtering performance and the like.

Drawings

The disclosure of the present utility model is described with reference to the accompanying drawings. It is to be understood that the drawings are designed solely for the purposes of illustration and not as a definition of the limits of the utility model. In the drawings, like reference numerals are used to refer to like parts. Wherein:

FIG. 1 is a schematic view of a prior art vane construction;

FIG. 2 is a schematic diagram of the overall structure of the present utility model;

fig. 3 is a schematic view showing the arrangement of the structure of the present utility model in an installed state.

Reference numerals in the drawings: 1-a front diversion section; 2-a first hydrophobic hook; 3-a first hydrophobic tank; 4-a second hydrophobic hook; 5-a second hydrophobic tank; 6-a third hydrophobic hook; 7-a third hydrophobic tank; 8-a fourth hydrophobic hook; 9-a fourth hydrophobic tank; 10-a fifth hydrophobic hook; 11-a rear diversion section.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the present utility model easy to understand, the present utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures to which the utility model pertains.

According to the technical scheme of the utility model, a person skilled in the art can propose various alternative structural modes and implementation modes without changing the true spirit of the utility model. Accordingly, the following detailed description and drawings are merely illustrative of the utility model and are not intended to be exhaustive or to limit the utility model to the precise form disclosed.

The technical scheme of the utility model is further described in detail below with reference to the accompanying drawings and examples.

As shown in FIG. 2, the streamline inertial stage blade with the gradually increased embedded hydrophobic grooves comprises a front guide section 1, the hydrophobic grooves and a rear guide section 11, wherein the hydrophobic grooves are arranged in a plurality and are positioned between the front guide section 1 and the rear guide section 11, and the radius of each hydrophobic groove is gradually increased from an inlet to an outlet and is distributed in a step shape along with the shape of the blade.

In implementation, the blade is the chevron shape structure, and the hydrophobic groove on it is equipped with four, is first hydrophobic groove 3, second hydrophobic groove 5, third hydrophobic groove 7 and fourth hydrophobic groove 9 respectively. Wherein the first water drain groove 3 and the third water drain groove 7 are positioned on the upper surface of the blade, and the second water drain groove 5 and the fourth water drain groove 9 are positioned on the lower surface of the blade. The four hydrophobic tanks of the inertial stage blade are all large-radius outer arcs, all components on the surface of the blade are in smooth transition, and adjacent components are tangent to each other. The streamline type built-in grooves which are gradually increased are adopted, so that vortex flows with different dimensions are formed, and the capability of capturing particles with different particle sizes is high. In order to reduce the resistance loss, the edges of the front guide section and the rear guide section and the connection part of each hydrophobic hook and the blade body are in round corner transition, rather than straight edges with clear edges.

Specifically, the opening directions of the first drain groove 3 and the third drain groove 7 are opposite to the opening directions of the second drain groove 5 and the fourth drain groove 9; the first drain groove 3 and the third drain groove 7 protrude inward, and the second drain groove 5 and the fourth drain groove 9 protrude outward. The large-radius arc groove is adopted, so that secondary entrainment can be effectively reduced to a certain extent.

In addition, as a whole, the structure from the inlet to the outlet is as follows:

the front diversion section 1 is connected with the first diversion groove 3 through the first diversion hook 2, the first diversion groove 3 is respectively connected with the second diversion groove 5 and the third diversion groove 7 through the second diversion hook 4, the second diversion groove 5 is connected with the front end of the fourth diversion groove 9 through the third diversion hook 6, the third diversion groove 7 is connected with the back of the fourth diversion groove 9 through the fourth diversion hook 8, and the tail end of the fourth diversion groove 9 is connected with the rear diversion section 11 through the fifth diversion hook 10.

In this way, the basic form of the inertial blade is constituted by two guide segments, four hydrophobic channels and five hydrophobic hooks. The whole blade water-repellent tank increases step by step from left to right, and the blade is about 100mm along the size of circulation direction, and blade thickness is different, and thinnest department is 2mm. The size can be adjusted according to the actual needs on the premise of ensuring the structure and the performance.

As a preferable scheme, the inner side of the straight line section in the front diversion section 1 is gently tangent to the circular arc section connected with the first drainage hook 2, and the rear diversion section 11 is gently tangent to the circular arc section connected with the fifth drainage hook 10. The edges of the front diversion section 1, the first hydrophobic hook 2, the second hydrophobic hook 4, the third hydrophobic hook 6, the fourth hydrophobic hook 8, the fifth hydrophobic hook 10 and the rear diversion section 11 respectively adopt round angle transition. The whole blade profile is streamline, and the structure adopts circular arc smooth transition, so that the resistance loss is reduced.

As a preferred solution, the angle between the front diversion section 1 and the first water drain hook 2 is 80-110 degrees, and the angle between the rear diversion section 11 and the fifth water drain hook 10 is 130-160 degrees. The first hydrophobic hook 2 has an inclination angle of 30 to 40 °, the second hydrophobic hook 4 and the fourth hydrophobic hook 8 have an inclination angle of 140 to 150 °, and the third hydrophobic hook 6 and the fifth hydrophobic hook 10 have an inclination angle of 230 to 240 °. The opening angle of the first water drain groove 3 is 40-80 degrees, the opening angle of the second water drain groove 5 is 0-30 degrees, the opening angle of the third water drain groove 7 is 0-40 degrees, and the opening angle of the fourth water drain groove 9 is 20-80 degrees.

Compared with the traditional blade with clear edges and corners shown in fig. 1, the streamline built-in slot inertial stage blade of the scheme can effectively reduce secondary entrainment to a certain extent, ensure that higher air-water filtering efficiency is obtained and resistance loss is reduced under the conditions of large blade spacing and high air inlet flow rate.

As shown in fig. 3, a plurality of such inertial stage blades are arranged vertically facing the incoming airflow direction, with each blade operating at equal intervals. The utility model is used as an important component of a filter device, is mainly applied to the field of intake filtering of ships, and has the following specific functions:

inertial grade blades are commonly used in manufacturing industries, such as sulfuric acid plants. In the acid making engineering, the air flow shears the liquid level of the acid liquid to form small liquid drops, the small liquid drops enter the exhaust channel along with the air flow, when the air flow flows through the bent channel of the inertial stage blade, the small liquid drops can strike the wall surface of the blade, under the centrifugal force of the channel and the inertia of the liquid drops, the liquid drops can strike the wall surface of the blade to form a water film, and the liquid drops can drop to the bottom to be separated under the action of gravity. The built-in grooves with the gradually increased type can efficiently catch the impurities of each diameter particle, and the threshold value of the phenomenon that the liquid drops caught by the leaf walls are re-involved in the air flow is improved, so that higher gas-liquid separation efficiency is obtained; the streamline blade profile ensures that higher filtering efficiency is achieved under the condition of large blade spacing, reduces manufacturing cost and achieves light weight.

The utility model provides a streamline inertial-stage blade with an gradually-increased embedded hydrophobic groove, the section of which is streamline and consists of two diversion sections, four hydrophobic grooves and five hydrophobic hooks. The outside structure and the diversion section of the water-repellent tank are all large-radius circular arcs, so that the flow resistance loss can be effectively reduced. The radius of the hydrophobic groove is gradually increased from left to right, the hydrophobic grooves of the blades are distributed in a step-like manner along with the blade profile, the hydrophobic capacity is high, and the device is suitable for high-flow-rate working conditions. In order to reduce secondary entrainment caused by flow separation under the high-speed condition, four large-radius notches are formed in the blades, and the edge parts of the front flow guide section and the rear flow guide section are in rounded transition.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. These undisclosed elements are all of the prior art known to those skilled in the art.

The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the utility model, and is not meant to limit the scope of the utility model, but to limit the utility model to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims

1. An increasingly-embedded hydrophobic groove streamline inertial stage blade is characterized in that: the novel air conditioner comprises a front flow guide section (1), a drainage groove and a rear flow guide section (11), wherein the drainage groove is provided with a plurality of grooves and is positioned between the front flow guide section (1) and the rear flow guide section (11), and the radius of the drainage groove is gradually increased from an inlet to an outlet and is distributed in a step shape along with the shape of a blade.

2. An incrementally embedded hydrophobic slot streamline inertial stage blade as claimed in claim 1, wherein: the four hydrophobic tanks are respectively a first hydrophobic tank (3), a second hydrophobic tank (5), a third hydrophobic tank (7) and a fourth hydrophobic tank (9), wherein the first hydrophobic tank (3) and the third hydrophobic tank (7) are positioned on the upper surface of the blade, and the second hydrophobic tank (5) and the fourth hydrophobic tank (9) are positioned on the lower surface of the blade.

3. An incrementally embedded hydrophobic slot streamline inertial stage blade as claimed in claim 2, wherein: the front diversion section (1) is connected with the first diversion groove (3) through the first diversion hook (2), the first diversion groove (3) is connected with the second diversion groove (5) and the third diversion groove (7) through the second diversion hook (4) respectively, the second diversion groove (5) is connected with the front end of the fourth diversion groove (9) through the third diversion hook (6), the third diversion groove (7) is connected with the back of the fourth diversion groove (9) through the fourth diversion hook (8), and the tail end of the fourth diversion groove (9) is connected with the rear diversion section (11) through the fifth diversion hook (10).

4. An incrementally embedded hydrophobic slot streamline inertial stage blade as claimed in claim 2, wherein: the opening directions of the first water drain groove (3) and the third water drain groove (7) are opposite to the opening directions of the second water drain groove (5) and the fourth water drain groove (9); the first water drain groove (3) and the third water drain groove (7) are protruded inwards, and the second water drain groove (5) and the fourth water drain groove (9) are protruded outwards.

5. A progressive embedded hydrophobic slot streamline inertial stage blade according to claim 3, wherein: the inner side of a straight line section in the front diversion section (1) is gently tangent to an arc section connected with the first drainage hook (2), and the rear diversion section (11) is gently tangent to an arc section connected with the fifth drainage hook (10).

6. An incrementally embedded hydrophobic slot streamline inertial stage blade as claimed in claim 5, wherein: the angle between the front diversion section (1) and the first drainage hook (2) is 80-110 degrees, and the angle between the rear diversion section (11) and the fifth drainage hook (10) is 130-160 degrees.

7. An incrementally embedded hydrophobic slot streamline inertial stage blade as claimed in claim 5, wherein: the edges of the front diversion section (1), the first drainage hook (2), the second drainage hook (4), the third drainage hook (6), the fourth drainage hook (8), the fifth drainage hook (10) and the rear diversion section (11) are respectively in rounded transition.

8. An incrementally embedded hydrophobic slot streamline inertial stage blade as in claim 7, wherein: the inclination angle of the first hydrophobic hook (2) is 30-40 degrees, the inclination angle of the second hydrophobic hook (4) and the fourth hydrophobic hook (8) is 140-150 degrees, and the inclination angle of the third hydrophobic hook (6) and the fifth hydrophobic hook (10) is 230-240 degrees.

9. An incrementally embedded hydrophobic slot streamline inertial stage blade as claimed in claim 2, wherein: the opening angle of the first water drain groove (3) is 40-80 degrees, the opening angle of the second water drain groove (5) is 0-30 degrees, the opening angle of the third water drain groove (7) is 0-40 degrees, and the opening angle of the fourth water drain groove (9) is 20-80 degrees.