CN217716527U

CN217716527U - Take turbine blade's honeycomb rectifier

Info

Publication number: CN217716527U
Application number: CN202221579248.4U
Authority: CN
Inventors: 杨建峰
Original assignee: Hangzhou Jingrui Instrument Co ltd
Current assignee: Hangzhou Jingrui Instrument Co ltd
Priority date: 2022-06-22
Filing date: 2022-06-22
Publication date: 2022-11-01
Anticipated expiration: 2032-06-22

Abstract

The utility model discloses a take turbine blade's honeycomb rectifier, including first cowling panel and second cowling panel, first cowling panel includes the inner circle, outer lane and a plurality of turbine blade, the outer lane cover is established in the inner circle outside, regional circumference evenly distributed has a plurality of turbine blade to make the air current flow through the turbine blade after inside circle central direction flow between the inner wall of inner circle outer wall and outer lane, the inner circle middle part is equipped with airflow channel along the axial, airflow channel internally mounted has the honeycomb panel, the second cowling panel is equipped with a plurality of gas pockets along the axial, second cowling panel and first cowling panel parallel mount, and be formed with the air current buffer memory area between second cowling panel and the first cowling panel. The utility model has the advantages of good rectification effect, relatively uniform air inlet flow, small size and the like.

Description

Take turbine blade's honeycomb rectifier

Technical Field

The utility model belongs to the technical field of the rectifier, especially, relate to a take turbine blade's honeycomb rectifier.

Background

In an actual gas metering environment, the installation environment of a gas ultrasonic flowmeter is severe, the gas working condition is complex, and the straight pipe sections of the upstream and the downstream of the site are short, so that uniform gas flow distribution cannot be formed in the metering pipe section of the ultrasonic flowmeter, and the metering precision of the flowmeter can be influenced. Therefore, in practical metering applications, a rectifier needs to be installed at the front end of the flow meter.

The traditional rectifiers mainly comprise a plate rectifier, a turbine rectifier and the like, which can improve the flow state distribution of gas to a certain extent, but the traditional rectifiers have large volumes and the gas inlet ends are multi-axial gas inlet holes, so that the gas flow is not uniform in steady-state flow field after entering the rectifiers from the beginning. When the air outlet end of the rectifier is closer to the ultrasonic transducer, uniform air flow distribution is difficult to obtain, the rectification effect is poor, and air flow is gathered on the inner wall of the radial edge of the pipeline to generate larger noise.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem in the background art, providing a take turbine blade's honeycomb rectifier, can have good rectification effect, the air current that admits air is relatively even, and is small.

In order to realize the above purpose, the utility model provides a take turbine blade's honeycomb rectifier, including first cowling panel and second cowling panel, first cowling panel includes inner circle, outer lane and a plurality of turbine blade, the outer lane cover is established in the inner circle outside, regional circumference evenly distributed has a plurality of turbine blade to make the air current flow through behind the turbine blade inwards circle central direction flow between the inner wall of inner circle outer wall and outer lane, the inner circle middle part is equipped with airflow channel along the axial, and airflow channel internally mounted has the honeycomb panel, the second cowling panel is equipped with a plurality of gas pockets along the axial, second cowling panel and first cowling panel parallel mount, and is formed with the air current buffer memory area between second cowling panel and the first cowling panel.

Preferably, the second cowling panel is installed in the rear of first cowling panel.

Preferably, the cross section of the air hole of the second rectifying plate is in a hexagonal honeycomb shape.

Preferably, the diameter of the air hole is 3.2-6.4 mm, the thickness of the second flow rectification plate is 20-60 mm, and the diameter of the air hole does not exceed the diameter of the through hole in the honeycomb plate.

Preferably, the diameter of the through hole on the honeycomb plate is 4.8-10 mm, and the thickness of the honeycomb plate is 20-60 mm.

Preferably, the number of the turbine blades is 8 to 11, and the blade turning directions of the turbine blades are the same.

Preferably, a horizontal included angle between two adjacent turbine blades is 30 to 45 °

Preferably, an included angle between one end edge of the turbine blade radially far away from the honeycomb plate and the front end face of the outer ring is gradually increased along the axial direction, and the included angle is 20-35 °.

Preferably, the honeycomb plate, the inner ring, the turbine blade and the outer ring are welded together.

The utility model has the advantages that: the utility model discloses a set up the honeycomb panel with the center of first cowling panel, the outside of honeycomb panel has a plurality of turbine blades according to same central circumference distribution, turbine blade can avoid the air current at the gathering of pipeline inner wall, and pipeline border position air current obtains the even rotatory air current that just revolves to the pipeline center of relative distribution behind the turbine blade, and the honeycomb panel then puts the air current with pipeline center and cuts apart into many tiny even air currents for the rectification of rectifier is effectual, and the air current that admits air is relatively even, and is small.

The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment.

FIG. 2 is a front view of an embodiment.

Fig. 3 is a schematic diagram of a first fairing structure according to an embodiment.

FIG. 4 is a front view of a first fairing of an embodiment.

FIG. 5 is a front view of one embodiment of a fastening ring.

FIG. 6 is a left side cross-sectional view of a fastening ring of an embodiment.

In the figure: 1-first rectifying plate, 2-second rectifying plate, 3-pipeline, 4-gasket, 5-airflow buffer zone, 6-fastening ring, 11-inner ring, 12-outer ring, 13-turbine blade and 14-honeycomb plate.

Detailed Description

Referring to fig. 1 to 6, the present embodiment provides a honeycomb rectifier with turbine blades, including a first rectifying plate 1 and a second rectifying plate 2, the first rectifying plate 1 includes an inner ring 11, an outer ring 12 and a plurality of turbine blades 13, the outer ring 12 is sleeved on the outer side of the inner ring 11, a plurality of turbine blades 13 are uniformly distributed in the circumferential direction between the outer wall of the inner ring 11 and the inner wall of the outer ring 12, so that an airflow flows through the turbine blades 13 and then flows toward the center of the inner ring 11, an airflow channel is axially arranged in the middle of the inner ring 11, and a honeycomb plate 14 is installed inside the airflow channel, wherein the surface of the turbine blade 13 is a three-dimensional curved surface to reduce the pressure loss of the airflow, and the airflow flows toward the center of the pipeline 3, the honeycomb plate 14 and the turbine blades 13 are radially arranged on the first rectifying plate 1, compared with the rectifying plates provided with the inner and outer turbine blades 13, the production cost is lower, and the production and installation are more convenient.

First cowling panel

1 and 2 parallel mount of second cowling panel are inside the one end of pipeline 3, and second cowling panel 2 installs the rear at first cowling panel 1, second cowling panel 2 is equipped with a plurality of gas pockets along the axial, be formed with air current buffer 5 between second cowling panel 2 and the first cowling panel 1, air current buffer 5's thickness is 20 ~ 40mm, air current buffer 5 be provided with do benefit to and reduce air current noise, second cowling panel 2 carries out the secondary rectification in order to obtain the more even air current of distribution to the rotating current and the horizontal air current that first cowling panel 1 flowed in.

The air hole cross-section of second cowling panel 2 is hexagon honeycomb shape, has the second air current buffer area between second cowling panel 2 and the ultrasonic transducer, and the length of second air current buffer area is greater than 50mm, guarantees that the air current is more stable abundant in this region, makes ultrasonic transducer can receive stable ultrasonic signal, ensures accurate measurement.

The aperture of the air holes is 3.2-6.4 mm, the thickness of the second rectifying plate 2 is 20-60 mm, and the aperture of the air holes does not exceed the aperture of the through holes on the honeycomb plate 14.

The aperture of the through holes on the honeycomb plate 14 is 4.8-10 mm, the thickness of the honeycomb plate 14 is 20-60 mm, and the aperture of the through holes on the honeycomb plate 14 can be selected according to the diameter of the pipeline 3.

The number of the turbine blades 13 is 8-11, and the blade rotating directions of the turbine blades 13 are the same, so that the rotating air flows formed by flowing through the turbine blades 13 ensure the same flow direction, and the air flows are relatively stable and uniform.

Two adjacent turbine blades 13 form a horizontal included angle a, and the horizontal included angle a is 30-45 degrees.

The included angle b between one end edge of the turbine blade 13, which is radially far away from the honeycomb plate 14, and the front end face of the outer ring 12 gradually increases along the axial direction, and the included angle is 20-35 degrees, so that the turbine blade 13 guides the peripheral airflow to rotate and flow along the blade surface towards the center of the pipeline 3.

The honeycomb plate 14, the inner ring 11, the turbine blades 13 and the outer ring 12 are welded together, so that the overall connection strength of the first rectifying plate 1 is improved, and the first rectifying plate is not easy to deform.

The utility model discloses the working process:

this take turbine blade's honeycomb rectifier is in the course of the work, install second cowling panel 2 inside the front end of pipeline 3 during the installation, install packing ring 4, first cowling panel 1 and clamping ring 6 in proper order again, clamping ring 6 uses fastening screw to fix on the front end flange face of pipeline 3, during the use, the air current flows in from the front end of pipeline 3, when the air current flows through first cowling panel 1, the air current of pipeline 3 radial edge position flows to pipeline 3 center under the guide of turbine blade 13, the air current of pipeline central position obtains a preliminary relative urgent but stable air current after passing through honeycomb panel 14, later the air current cushions at air current 5, further reduce air current sound noise, then the air current carries out secondary rectification stability through second cowling panel 2 again, rotatory air current will form many tiny, even air currents through the honeycomb gas pocket of straight second cowling panel 2, eliminated the pipeline 3 in, the air current direction is parallel with the pipeline 1 inner wall, last air current passes through the air current buffer zone between second cowling panel 2 and the ultrasonic transducer, guarantee that the gas transducer obtains abundant stable signal of flow state in this section, thereby make the ultrasonic wave transducer receive accurate.

The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.

Claims

1. A honeycomb rectifier with turbine blades is characterized in that: including first cowling panel and second cowling panel, first cowling panel includes inner circle, outer lane and a plurality of turbine blade, the inner circle outside is established to the outer lane cover, regional circumference evenly distributed has a plurality of turbine blade to make the air current flow through behind the turbine blade to flow towards inner circle central direction between the inner wall of inner circle outer wall and outer lane, the inner circle middle part is equipped with airflow channel along the axial, and airflow channel internally mounted has the honeycomb panel, second cowling panel is equipped with a plurality of gas pockets along the axial, second cowling panel and first cowling panel parallel mount, and is formed with the air current buffer memory between second cowling panel and the first cowling panel.

2. The turbine blade-equipped honeycomb rectifier of claim 1, wherein: the second fairing is installed in the rear of the first fairing.

3. The turbine blade-equipped honeycomb rectifier of claim 2, wherein: the section of the air hole of the second rectifying plate is in a hexagonal honeycomb shape.

4. The turbine blade-equipped honeycomb rectifier according to claim 2 or 3, wherein: the aperture of the air hole is 3.2-6.4 mm, the thickness of the second rectifying plate is 20-60 mm, and the aperture of the air hole is not more than that of the through hole on the honeycomb plate.

5. The turbine blade-equipped cell rectifier of claim 1, wherein: the aperture of the through hole on the honeycomb plate is 4.8-10 mm, and the thickness of the honeycomb plate is 20-60 mm.

6. The turbine blade-equipped cell rectifier of claim 1, wherein: the number of the turbine blades is 8-11, and the blade rotating directions of the turbine blades are the same.

7. The turbine blade-equipped honeycomb rectifier of claim 1, wherein: the horizontal included angle between two adjacent turbine blades is 30-45 degrees.

8. The turbine blade-equipped cell rectifier of claim 1, wherein: the included angle between the edge of one end of the turbine blade, which is radially far away from the honeycomb plate, and the front end face of the outer ring is gradually increased along the axial direction and is 20-35 degrees.

9. The turbine blade-equipped honeycomb rectifier of claim 1, wherein: the honeycomb plate, the inner ring, the turbine blade and the outer ring are welded together.