CN211575824U

CN211575824U - Bidirectional rotary turbulence device for air duct

Info

Publication number: CN211575824U
Application number: CN201922379042.1U
Authority: CN
Inventors: 陈滢; 孙仁权; 李锋; 王松青
Original assignee: Suzhou Xianji Power Technology Co ltd
Current assignee: Suzhou Xianji Power Technology Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-09-25
Anticipated expiration: 2029-12-26

Abstract

The utility model discloses a two-way rotatory vortex device in wind channel, including the base plate, in the base plate was fixed in the pipeline, set up a plurality of breach of opening outwards along the center on the base plate, breach department was equipped with the spoiler, and the breach is equipped with two circles, and the spoiler of a plurality of breachs and the fixed position of breach set up according to making gaseous structure through this circle breach with clockwise or anticlockwise rotation on every circle breach, and gaseous rotation direction through two circles breach is opposite. When high-temperature gas enters the pipeline from the combustor and passes through the substrate, the gas flow organization in a double-spiral shape is formed due to the spoiler, so that the gas can flow more uniformly, the temperature can be more uniform, and the temperature difference between the highest temperature and the lowest temperature is reduced.

Description

Bidirectional rotary turbulence device for air duct

Technical Field

The utility model relates to a vortex device.

Background

After the high-temperature gas flows into the pipeline from the outlet of the combustion chamber, the temperature and the flow rate of the high-temperature gas have the characteristics of unevenness, the area of a central low-speed area is large, the consistency of a flow field is poor, and meanwhile, the temperature difference range is large. In applications where uniformity of high temperature gases is desired, such as gypsum board drying processes, where multiple gypsum boards are placed longitudinally in a process air duct, the non-uniformity of the high temperature gases can affect the drying quality of the gypsum boards. Therefore, it is necessary to add a device at the burner outlet or in the duct to make the flow rate and temperature of the high-temperature gas in the duct more uniform.

Disclosure of Invention

The utility model aims to solve the technical problem that a device that can make the velocity of flow and the temperature of the high-temperature gas in the pipeline more even is provided.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme: the utility model provides a two-way rotatory vortex device in wind channel, includes the base plate, and in the base plate was fixed in the pipeline, set up a plurality of breach of opening along the outside center on the base plate, breach department was equipped with the spoiler, and the breach is equipped with two circles, and the spoiler of a plurality of breachs and the fixed position of breach set up according to making gas with clockwise or anticlockwise rotation through the structure of this circle breach on every circle breach, and the rotation direction of gas through two circles breach is opposite.

Further, the ratio of the area of the gap to the cross-sectional area of the pipe is 35% to 85%.

Furthermore, a circular hole is formed in the center of the substrate, and the notch is formed in the substrate outside the circular hole.

Furthermore, the spoiler is fixed on one side of the notch.

Furthermore, the spoiler is flat and has an included angle of 30-60 degrees with the substrate.

Furthermore, after the substrate is punched, the punching part is bent to form a spoiler, and the punching shape is a notch shape.

Furthermore, the shape of the notch is triangular, rectangular, trapezoidal or the form of a cutting angle thereof, and the plurality of notches consist of notches in single form or multiple forms.

Further, the conduit is circular, rectangular or rectangular with rounded/chamfered corners.

The utility model discloses an useful part lies in, gets into the pipeline from the combustor when high temperature gas, when the base plate, because the spoiler forms the air current tissue of two helices, can make the flow of gas more even, also can make the temperature more even simultaneously, and the difference in temperature of highest temperature and minimum temperature reduces.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a substrate according to an embodiment of the present invention;

FIG. 3 is a field diagram of the velocity of the gas in the duct when the spoiler is rotated bidirectionally without the duct;

FIG. 4 is a field diagram of the velocity of the gas in the duct when the air channel bidirectional rotation spoiler is added;

FIG. 5 is a temperature field diagram of the air in the duct when the spoiler is rotated bidirectionally without the duct;

FIG. 6 is a diagram of the temperature field of the air in the duct when the air duct bi-directionally rotates the spoiler.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments:

as shown in fig. 1 and 2, a two-way rotatory vortex device in wind channel, including base plate 2, base plate 2 is fixed in pipeline 1, set up a plurality of breach 3 of opening along the outside edge in center on the base plate 2, breach 3 department is equipped with spoiler 4, breach 3 is equipped with two circles, every circle 3 goes up spoiler 4 and the fixed position of breach 3 of a plurality of breachs 3 and breach 3 and sets up according to the structure that makes gas pass through this circle breach 3 with clockwise or anticlockwise rotation, gaseous rotation direction through two circles breach 3 is opposite. When high-temperature gas enters the pipeline 1 from the combustor and passes through the substrate 2, the double-spiral airflow structure is formed due to the spoiler 4, so that the gas can flow more uniformly, the temperature can be more uniform, and the temperature difference between the highest temperature and the lowest temperature is reduced. In fig. 1 and 2, the gas is rotated counterclockwise by the spoiler 4 of the outer ring notch 3 of the base plate 2, and the gas is rotated clockwise by the spoiler 4 of the inner ring notch 3.

Preferably, the ratio of the area of the notch 3 to the cross-sectional area of the pipe 1 is 35% to 85%.

Preferably, the center of the substrate 2 is provided with a circular hole 5, and the notch 3 is arranged on the substrate 2 outside the circular hole 5. The central zone of the hot gas is a low velocity zone and therefore passes directly through the circular orifice 5 without disturbance through the spoiler 4. Meanwhile, the high-speed area of the periphery forms spiral airflow through the spoiler 4, the flow speed is reduced, and the area is enlarged.

Preferably, the spoiler 4 is fixed to one side of the notch 3, as shown in fig. 1 and 2. The position of the spoiler 4 is not limited to one side of the notch 3, and may be a plurality of sides, or may surround the notch 3 and leave only one side as an opening through which the gas flows out.

Preferably, the spoiler 4 is flat and forms an angle of 30-60 ° with the base plate 2. The air flow structure formed by the included angle of 30-60 degrees can achieve better effect on the uniformity of temperature and flow speed. The spoiler 4 may also have other shapes, such as a curved surface and a spherical surface.

Preferably, the spoiler 4 is formed by bending the die-cut portion after the die-cut portion is die-cut on the substrate 2, and the die-cut shape is a notch 3 shape. The spoiler 4 is directly formed by punching and bending the substrate 2, and the notch 3 is formed on the substrate 2 after bending, so that the processing technology is simple.

Preferably, the shape of the notch 3 is triangular, rectangular, trapezoidal or the form of its cut angle, and the plurality of notches 3 are composed of single-form or multi-form notches 3. As shown in fig. 2, the notch 3 has both a trapezoidal shape and a trapezoidal corner cut shape.

Preferably, the pipe 1 is round, rectangular or rectangular with rounded/chamfered corners. As shown in fig. 1, the duct 1 is rectangular.

As shown in fig. 3 and 4, after the air duct bidirectional rotation flow disturbing device is added, the flow disturbing effect is very obvious, the area of a relatively high-speed flow area is enlarged to a certain extent, a central low-speed area almost disappears, and the consistency of a flow field is greatly improved.

As shown in fig. 5 and 6, compared with the case of the air duct-free bidirectional rotating spoiler, the air duct-added bidirectional rotating spoiler has the advantages that the overall temperature is significantly reduced, the maximum temperature is reduced by about 210 ℃, the minimum temperature is increased by 6 ℃, the temperature difference range is reduced from 473 ℃ to 256 ℃, the consistency is increased by 46%, and the overall temperature distribution tends to be uniform.

It is to be emphasized that: the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form, and any simple modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a two-way rotatory vortex device in wind channel which characterized in that: including the base plate, the base plate is fixed in the pipeline, has seted up a plurality of breach of opening along the outside edge in center on the base plate, and breach department is equipped with the spoiler, and the breach is equipped with two circles, and the spoiler of a plurality of breachs and the fixed position of breach set up according to making gas with clockwise or anticlockwise rotation through the structure of this circle breach on every circle breach, and gas is opposite through the direction of rotation of two circles breach.

2. The bidirectional rotary air channel spoiler of claim 1, wherein: the ratio of the area of the gap to the cross-sectional area of the pipe is 35% to 85%.

3. The bidirectional rotary air channel spoiler of claim 1, wherein: the center of the substrate is provided with a round hole, and the notch is arranged on the substrate outside the round hole.

4. The bidirectional rotary air channel spoiler of claim 1, wherein: the spoiler is fixed on one side of the notch.

5. The bidirectional rotary air channel spoiler of claim 4, wherein: the spoiler is flat and has an included angle of 30-60 degrees with the substrate.

6. The bidirectional rotary air channel spoiler of claim 5, wherein: and after the substrate is punched, bending the punching part to form a spoiler, wherein the punching shape is a notch shape.

7. The bidirectional rotary air channel spoiler as claimed in any one of claims 1 to 6, wherein: the notches are triangular, rectangular, trapezoidal or corner-cut shapes, and the plurality of notches consist of notches in single shapes or multiple shapes.

8. The bidirectional rotary air channel spoiler as claimed in any one of claims 1 to 6, wherein: the pipe is round, rectangular or rectangular with rounded/chamfered corners.