A pipe static mixer

By designing a pipeline static mixer, which utilizes liquid flow and gas blowing to drive turbine blade rotation, the problems of poor sealing and uneven mixing in traditional pipelines have been solved, achieving better mixing effect and sealing performance, and expanding the scale of natural gas utilization.

CN224524485UActive Publication Date: 2026-07-21XUNLAI FLUID TECH (SHANGHAI) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XUNLAI FLUID TECH (SHANGHAI) CO LTD
Filing Date
2025-05-13
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Traditional pipelines have poor sealing performance and are prone to blockage. Furthermore, the natural gas is not mixed evenly with desulfurization, drying, odorization, and air, which limits the expansion of the scale and scope of natural gas utilization.

Method used

A static mixer for pipelines was designed, which uses liquid flow and gas blowing to drive turbine blades to rotate, and achieves gas and liquid mixing through rotating rod and stirring rod. A semi-cylindrical plate is set around the spiral gas delivery pipeline for protection.

Benefits of technology

It improves the sealing of the pipeline, avoids blockage, achieves uniform mixing of gas and liquid, and enhances the practicality of the mixer.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a kind of pipeline static mixers, and the pipeline static mixer is specifically a kind of pipeline static mixer, including mixed pipeline body, the middle part of mixed pipeline body is peripherally equipped with spiral gas conveying pipeline, the top of one end of spiral gas conveying pipeline is connected with external pipeline, the other end of spiral gas conveying pipeline is closed, the top of spiral gas conveying pipeline is connected with several blow pipes at equal intervals in inner periphery, the bottom end of blow pipe extends to mixed pipeline body, the inner cavity of both ends of mixed pipeline body is provided with mounting sleeve, rotating rod is provided in mixed pipeline body, the both ends of rotating rod are respectively rotationally connected in two mounting sleeves, turbine blade is provided on rotating rod below blow pipe, several stirring rods are provided on rotating rod between adjacent two turbine blades, turbine blade is rotated by the flow of gas and liquid, and then rotating rod is rotated, and then stirring rod is rotated to carry out gas-liquid mixing, without setting drive structure, energy saving and environmental protection.
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Description

Technical Field

[0001] This utility model relates to the technical field of mixers, specifically a pipeline static mixer. Background Technology

[0002] Compared to other energy sources, natural gas has many advantages. Moreover, the natural gas used has undergone desulfurization, drying, and odorization treatments, making it safer and more environmentally friendly during combustion. The mixer is an indispensable component for achieving uniform mixing of natural gas with desulfurized, dried, odorized, and air.

[0003] However, natural gas requires pipeline transportation. Traditional pipelines are mostly fixed with flanges, which result in poor sealing and instability over long periods of use. Furthermore, these pipelines are prone to blockage after prolonged use, and the uneven mixing of natural gas with desulfurization, drying, odorization, and air limits the scale and scope of natural gas utilization. Therefore, how to solve these problems and address their adverse consequences during the use of a pipeline static mixer has been a pressing issue for both personnel and manufacturers. To address this, those skilled in the art have proposed a pipeline static mixer to solve the problems mentioned above. Utility Model Content

[0004] The purpose of this invention is to provide a pipeline static mixer to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A static pipeline mixer includes a mixing pipeline body with connecting flanges installed at both ends. A spiral gas delivery pipeline is sleeved around the middle of the mixing pipeline body. An external pipeline is connected to the top of one end of the spiral gas delivery pipeline, and the other end of the spiral gas delivery pipeline is closed. A plurality of air blowing pipes are connected at equal intervals to the inner circumference of the top of the spiral gas delivery pipeline. The middle part of the air blowing pipe is inserted and connected to one side of the top of the mixing pipeline body and sealed at the connection. Support rods are installed in the inner cavities of both ends of the mixing pipeline body, and mounting sleeves are provided on the support rods. A rotating rod is provided inside the mixing pipeline body, and the two ends of the rotating rod are rotatably connected to two mounting sleeves respectively. The rotating rod is located on the central axis of the mixing pipeline body. Turbine blades are provided on the rotating rod directly below the air blowing pipes. A plurality of stirring rods are provided on the rotating rod between two adjacent turbine blades.

[0007] As a further improvement of this utility model: both ends of the rotating rod are connected to buffer balls, and the outer diameter of the buffer balls is larger than the outer diameter of the mounting sleeve.

[0008] As a further embodiment of this utility model: the outer periphery of the spiral gas transmission pipe is provided with two semi-cylindrical plates that are combined with each other, and a semi-circular groove is provided at the top of one end of the semi-cylindrical plate, the inner diameter of the semi-circular groove being consistent with the outer diameter of the external pipe.

[0009] As a further embodiment of this utility model: a semi-circular sealing ring is provided on the inner circumference of the end of the semi-cylindrical plate, and the inner wall of the semi-circular sealing ring abuts against the outer wall of the mixing pipe body.

[0010] As a further improvement of this utility model: the side end of the semi-cylindrical plate is connected to a mounting plate, and the mounting plates on the two semi-cylindrical plates are connected and fixed by fixing bolts.

[0011] This invention has the following advantages: The mixer utilizes the dual action of liquid flow and gas blowing to drive the turbine blades to rotate, which in turn drives the rotating rod and stirring rod to rotate. The mixing of gas and liquid is achieved through the stirring rod. Multiple air blowing pipes are provided on the spiral gas delivery pipe to blow in gas, which can avoid the problem of poor gas-liquid mixing effect caused by a single air inlet. Two semi-cylindrical plates are provided around the spiral gas delivery pipe to protect it, making it more practical. Attached Figure Description

[0012] Figure 1 This is a front view of the overall external structure of an embodiment of the present utility model.

[0013] Figure 2 This is a front view of the overall internal structure of an embodiment of the present utility model.

[0014] Figure 3 This is a schematic diagram of the semi-cylindrical plate in an embodiment of the present invention.

[0015] In the diagram: 1. Mixing pipe body; 2. Connecting flange; 3. Spiral gas transmission pipe; 4. External pipe; 5. Semi-cylindrical plate; 6. Mounting plate; 7. Fixing bolt; 8. Semi-circular ring seal; 9. Support rod; 10. Mounting sleeve; 11. Rotating rod; 12. Stirring rod; 13. Turbine blade; 14. Buffer ball; 15. Mounting hole; 16. Air blowing pipe; 17. Semi-circular groove. Detailed Implementation

[0016] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0017] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] The technical solution of this utility model will be further described in detail below with reference to specific embodiments.

[0020] Example 1: Please refer to Figures 1 to 3 A static pipeline mixer includes a mixing pipeline body 1, with connecting flanges 2 installed at both ends of the mixing pipeline body 1. A spiral gas delivery pipeline 3 is sleeved around the middle periphery of the mixing pipeline body 1. An external pipeline 4 is connected to the top of one end of the spiral gas delivery pipeline 3, and the other end of the spiral gas delivery pipeline is closed. A plurality of air blowing pipes 16 are connected at equal intervals to the inner circumference of the top of the spiral gas delivery pipeline. The middle part of the air blowing pipe 16 is inserted and fitted into one side of the top of the mixing pipeline body 1, and the connection is sealed. Both ends of the mixing pipe body 1 are equipped with support rods 9, and mounting sleeves 10 are provided on the support rods 9. A rotating rod 11 is provided inside the mixing pipe body 1. The two ends of the rotating rod 11 are rotatably connected to the two mounting sleeves 10 respectively. The rotating rod 11 is located on the central axis of the mixing pipe body 1. Turbine blades 13 are provided on the rotating rod 11 directly below the air blowing pipe 16. Several stirring rods 12 are provided on the rotating rod 11 between two adjacent turbine blades 13. The air blowing pipe 16 is inclined to better blow the turbine blades 13.

[0021] Please see Figure 2 Both ends of the rotating rod 11 are connected to buffer balls 14. The outer diameter of the buffer balls 14 is larger than the outer diameter of the mounting sleeve 10. The buffer balls 14 are used to avoid direct impact on the connecting sleeve, thereby preventing large impact damage to the connecting sleeve.

[0022] Example 2: See Figures 1 to 3 Based on Embodiment 1, the spiral gas transmission pipe 3 is surrounded by two semi-cylindrical plates 5 that are combined with each other. A semi-circular groove 17 is provided at the top of one end of the semi-cylindrical plate 5. The inner diameter of the semi-circular groove 17 is the same as the outer diameter of the external pipe 4. A semi-circular sealing ring 8 is provided on the inner circumference of the end of the semi-cylindrical plate 5. The inner wall of the semi-circular sealing ring 8 abuts against the outer wall of the mixing pipe body 1.

[0023] Please see Figures 1 to 3 The side end of the semi-cylindrical plate 5 is connected to a mounting plate 6. The mounting plates 6 on the two semi-cylindrical plates 5 are connected and fixed by fixing bolts 7. The mounting plate 6 is provided with a number of mounting holes 15 that cooperate with the fixing bolts 7.

[0024] Working principle: During use, the two ends of the mixing pipe body 1 are connected to the external pipe through the connecting flange 2, and the external pipe 4 is connected to the external gas transmission pipe. The liquid flow in the mixing pipe body 1 will impact the turbine blade 13, thereby driving the turbine blade 13 to rotate. At the same time, after the gas enters the spiral gas transmission pipe 3, it is blown into the mixing pipe body 1 through the blowing pipe 16. The gas blown out by the blowing pipe 16 further drives the turbine blade 13 to rotate, thereby driving the rotating rod 11 and the stirring rod 12 to rotate. The stirring rod 12 rotates to accelerate the mixing of gas and liquid.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A static pipe mixer, comprising a mixing pipe body, characterized in that, Both ends of the mixing pipe body are equipped with connecting flanges. A spiral gas delivery pipe is sleeved around the middle of the mixing pipe body. An external pipe is connected to the top of one end of the spiral gas delivery pipe, and the other end of the spiral gas delivery pipe is closed. Several air blowing pipes are connected at equal intervals to the inner circumference of the top of the spiral gas delivery pipe. The middle part of the air blowing pipe is inserted and connected to one side of the top of the mixing pipe body and sealed at the connection. Support rods are installed in the inner cavities of both ends of the mixing pipe body. Mounting sleeves are provided on the support rods. A rotating rod is provided inside the mixing pipe body. The two ends of the rotating rod are rotatably connected to two mounting sleeves respectively. The rotating rod is located on the central axis of the mixing pipe body. Turbine blades are provided on the rotating rod directly below the air blowing pipes. Several stirring rods are provided on the rotating rod between two adjacent turbine blades.

2. A static pipe mixer according to claim 1, characterized in that, Both ends of the rotating rod are connected to buffer balls, and the outer diameter of the buffer balls is larger than the outer diameter of the mounting sleeve.

3. A static pipe mixer according to claim 1, characterized in that, The spiral gas transmission pipeline is surrounded by two semi-cylindrical plates that are combined with each other. A semi-circular groove is provided at the top of one end of each semi-cylindrical plate. The inner diameter of the semi-circular groove is the same as the outer diameter of the external pipeline.

4. A static pipe mixer according to claim 3, characterized in that, The inner circumference of the end of the semi-cylindrical plate is provided with a semi-circular sealing ring, and the inner wall of the semi-circular sealing ring abuts against the outer wall of the mixing pipe body.

5. A static pipe mixer according to claim 3, characterized in that, The side ends of the semi-cylindrical plates are connected to mounting plates, and the mounting plates on the two semi-cylindrical plates are connected and fixed by fixing bolts.