CN217328612U

CN217328612U - Fluid rotational flow adjusting device

Info

Publication number: CN217328612U
Application number: CN202221380857.7U
Authority: CN
Inventors: 丁冲; 王培杰; 王浩; 宋吉朋; 宋云德
Original assignee: Shandong Jinshanbao Environmental Protection Equipment Co ltd
Current assignee: Shandong Jinshanbao Environmental Protection Equipment Co ltd
Priority date: 2022-06-06
Filing date: 2022-06-06
Publication date: 2022-08-30
Anticipated expiration: 2032-06-06

Abstract

The utility model provides a fluid whirl adjusting device, it has solved the technical problem that current device structure is complicated, and it includes trunk line and a plurality of bypass branch pipe. The bypass branch pipes are distributed on the peripheral side face of the main pipe, two ends of the bypass branch pipes are respectively communicated with the interior of the main pipe, and the structure of the bypass branch pipes is consistent with that of valve pipes of Tesla valves. The main pipeline is provided with a rotational flow plate in a segmentation way. The utility model arranges a plurality of bypass branch pipes through the main pipe and adopts the structure of valve pipes in Tesla valves, thus realizing the functions of increasing the flow velocity of fluid by forward use and reducing the pressure and speed by reverse use; meanwhile, the device can not obviously increase the occupied volume of the pipeline, can also reduce the use of parts and components, and can be widely applied to the technical field of fluid control.

Description

Fluid rotational flow adjusting device

Technical Field

The utility model relates to a fluid control technical field, in particular to fluid whirl adjusting device.

Background

In the field of fluid control, known regulating devices are mechanisms consisting of a plurality of movable parts, such as various types of valves. But the movable part easily breaks down, occupies a large amount of spaces simultaneously, especially faces under the scene of two-way use and pipeline step-down demand certain, and the problem is especially outstanding.

Optimization and improvement simulation of Tesla valves [ J ] technology and market, 2019, Vol.26 (No. 10): 33-37, mentions a characteristic of Tesla valves that is less resistant to forward flowing fluids and pressure reduction; but the fluid flowing reversely can generate larger resistance to generate larger pressure drop difference at the two ends of the inlet and the outlet, so that the pipeline in the fluid control field can be adapted by utilizing the characteristic of the Tesla valve, the pipeline meets the requirements of the specific scene, and the cost and the occupied space are reduced.

However, the tesla valve has corresponding limitations, the pipeline structure is complex, and the broken line type path enables the flow rate provided by the tesla valve to be smaller under the same occupied space, so that the tesla valve cannot meet the requirements of industries or other industries; and fluid swirling cannot be achieved, further improvement is required.

SUMMERY OF THE UTILITY MODEL

The utility model discloses just for solve above-mentioned background art not enough, provide a simple structure, flow is big, and can make the adjusting device of fluid whirl in the pipeline.

Therefore, the utility model provides a fluid rotational flow adjusting device, which comprises a main pipeline and a plurality of bypass branch pipes;

the main pipeline is a straight pipe or a bent pipe with uniform cross section; the bypass branch pipes are distributed on the peripheral side surface of the main pipe, and two ends of each bypass branch pipe are respectively communicated with the interior of the main pipe; the structure of the bypass branch pipe is consistent with that of a valve pipeline of the Tesla valve;

and a rotational flow plate is arranged in the main pipeline in a segmented manner.

Preferably, the bypass branch pipes are divided into two rows along the axial direction of the main pipe, and are respectively arranged on two sides of the main pipe, and the bending directions of the bypass branch pipes are consistent.

Preferably, the bypass branch pipes of each row are distributed at equal intervals along the axial direction of the main pipe.

Preferably, two rows of the bypass branch pipes are distributed in a crossed manner along the radial direction of the main pipe.

Preferably, the axial position of the bypass branch pipe or the axial position between two adjacent bypass branch pipes is correspondingly provided with one swirl plate.

Preferably, the ratio of the inner diameter of the bypass branch pipe to the inner diameter of the main pipe ranges from 0.2 to 0.35.

Preferably, the ratio of the length of the bent part convergence opening of the bypass branch pipe to the inner diameter of the main pipe ranges from 0.25 to 0.5.

Preferably, the branch angle of the bypass branch pipe ranges from 15 degrees to 35 degrees.

The utility model provides a fluid whirl adjusting device has following beneficial effect:

the utility model adopts the structure of valve pipeline in Tesla valve by arranging a plurality of bypass branch pipes on the main pipeline, thus realizing the forward use to increase the fluid flow speed and the reverse use to reduce the pressure and speed; meanwhile, the device does not increase the occupied volume of the pipeline obviously, and can reduce the use of parts;

furthermore, the size of the structure is optimized, and the excellent forward and reverse fluid regulation performance is obtained.

Drawings

FIG. 1 is a schematic longitudinal section of the pipeline of the present invention;

FIG. 2 is a schematic cross-sectional view of the pipeline of the present invention;

FIG. 3 is a schematic view of a Tesla valve membrane tube flow field simulation (diagram a is forward flow; diagram b is reverse flow);

FIG. 4 is a schematic diagram of the local structural parameters of the present invention;

the labels in the figure are: 1. main pipe, 2, by-pass branch pipe, 3, rotational flow plate.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments to assist understanding of the invention. The method used in the utility model is a conventional method if no special regulation is provided; the raw materials and the apparatus used are, unless otherwise specified, conventional commercially available products.

A fluid rotational flow adjusting device is shown in figure 1 and mainly comprises a main pipeline 1 and a plurality of bypass branch pipes 2.

Wherein, the straight tube that the cross-section is circular is selected to trunk line 1 in this embodiment, and the pipe diameter keeps always. The bypass branch pipes 2 are distributed on the peripheral side surface of the main pipe, and two ends of the bypass branch pipes 2 are respectively communicated with the inside of the main pipe 1. Referring to fig. 2, the bypass branch pipe 2 has a circular cross section, and the main structure of the bypass branch pipe is identical to that of a valve pipe of a tesla valve, specifically, an inclined pipeline communicated with the main pipe 1 is connected to the return main pipe 1 through an annular pipe.

Preferably, as shown, the number of bypass branch pipes 2 is 8, and the number of bypass branch pipes is divided into two arrays of 4 along the axial direction of the main pipe 1. Two rows are oppositely arranged at two sides of the main pipeline 1. The bending directions of the bypass branch pipes 2 in each row are uniform. Further, the bypass branch pipes 2 of each row are distributed at equal intervals along the axial direction of the main pipe 1. And, as shown in the figure, two rows of bypass branch pipes 2 are distributed crosswise along the radial direction of the main pipe 1, that is, the opposite side of each bypass branch pipe 2 is a spacing area of the other two bypass branch pipes 2.

As shown in fig. 1 and 2, a cyclone plate 3 is arranged in the main pipeline 1 in a segmented manner; preferably, a swirl plate 3 is correspondingly arranged at the axial position of the bypass branch pipe 2 or between two adjacent bypass branch pipes. In this embodiment, as shown in the figure, 4 swirl plates 3 are arranged in the main pipe 1 at intervals.

The above design advantages can refer to the tesla valve clack membrane tube flow field simulation diagram shown in fig. 3, as shown in the left side diagram a, taking the smoke as an example, when the smoke flows in the tube in the forward direction, part of the smoke enters the valve clack tube and then converges at the tail end, so that the airflow is accelerated; when the flue gas flows in the tube in the reverse direction as shown in the right side view b, part of the flue gas rushes out at the front end after entering the valve tube, and the velocity component is opposite to that of the subsequent flue gas, so that the blocking effect is generated, and the flow velocity and the final end pressure are reduced. In the embodiment, the same forward and reverse adjusting effect is realized by arranging the plurality of bypass branch pipes 2 on the main pipeline 1, but the main body in different embodiments is a round straight pipe with uniform cross section, although the reverse blocking effect is lower than that of a Tesla valve with the same size, the integral ventilation rate is ensured, the structure is simplified, and the straight pipe is beneficial to installing the rotational flow plate 3,

preferably, as shown in fig. 4, the inner diameter R of the bypass branch 2 is designed to further optimize the adjustment performance of the bypass branch ₂ Inner diameter R of main pipe ₁ The ratio of (A) is in the range of 0.2-0.35. Further, according to simulation and experiment, the length L of the curved part convergence port of the bypass branch pipe 2 and the inner diameter R of the main pipe are obtained ₁ Wherein the length L of the inlet is the length of the inlet in the axial direction after the inlet is projected in the radial direction. Furthermore, because the present embodiment is different from the broken line type structure of the conventional tesla valve, with the design of 30 ° to 45 °, the amount of the flue gas entering the bypass branch pipe 2 is small when the flue gas in the main pipe 1 reversely flows, and further the generated resistance is small, and the pressure reduction effect is not obvious, the branching angle α of the bypass branch pipe 2 is set to be in the range of 15 ° to 35 °.

In the description of the present invention, it should be understood that the terms "left", "right", "upper", "lower", "top", "bottom", "front", "rear", "inner", "outer", "back", "middle", 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.

However, the above embodiments are only examples of the present invention, and the scope of the present invention should not be limited thereby, and the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should be covered by the claims of the present invention.

Claims

1. A fluid rotational flow adjusting device is characterized by comprising a main pipeline and a plurality of bypass branch pipes;

2. The fluid rotational flow adjusting device as claimed in claim 1, wherein the bypass branch pipes are divided into two rows along the axial direction of the main pipe, and are respectively disposed at two sides of the main pipe, and the bending directions of the bypass branch pipes are consistent.

3. A fluid swirl tuning device according to claim 2 in which the bypass branches of each row are equally spaced in the axial direction of the main pipe.

4. A fluid swirl tuning device according to claim 3 wherein two rows of bypass branch pipes are distributed across in the radial direction of the main pipe.

5. The fluid swirl regulation device of claim 4 wherein the swirl plate is disposed at an axial position of the bypass branch pipe or at an axial position between two adjacent bypass branch pipes.

6. A fluid swirl control device according to any one of claims 1-5 wherein the ratio of the internal diameter of the bypass branch to the internal diameter of the main conduit is in the range 0.2-0.35.

7. A fluid swirl tuning device according to claim 6 wherein the ratio of the length of the elbow entry of the bypass branch to the internal diameter of the main conduit is in the range 0.25-0.5.

8. A fluid swirl control apparatus according to claim 7 wherein the by-pass branch has a divergent angle in the range of 15 ° to 35 °.