A readily removable pipe static mixer

Abstract

The utility model relates to pipeline static mixer technical field especially, it relates to an easily detachable pipeline static mixer, including pipeline body, the inner chamber of pipeline body is sequentially provided with fixed baffle and installation short board, fixed baffle and installation short board all are fixedly welded on the inner wall of pipeline body, be provided with movable baffle on installation short board, fixed baffle and movable baffle are connected through pivot, pivot is sequentially installed with first paddle wheel and second paddle wheel, and the top side of pipeline body is connected with dosing pipe. The utility model has the advantages of compact structure, low manufacturing cost, can realize quick assembly and disassembly, is favorable to the maintenance and cleaning of later period, can form composite flow field in limited pipe section, guarantees the quick dispersion of medicament, avoids the increase of head loss caused by too strong convection, and the mixing effect is remarkable and stable operation.

Description

Technical Field

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

[0002] In-line static mixers are fluid mixing devices widely used in water treatment. These devices require no external moving parts, relying solely on the fluid's own kinetic energy for mixing, offering advantages such as compact structure, low energy consumption, and ease of operation. However, existing in-line static mixers still have some shortcomings. For example, solid particles can easily accumulate in some of the mixer's internal channels and gaps, leading to decreased mixing efficiency and even blockages; under conditions of large flow fluctuations, the mixing effect is often unstable, and some mixing elements may loosen or shift under long-term impact, thus affecting the stable operation of the equipment.

[0003] Furthermore, some mixers have complex structural designs, require advanced processing techniques, and have high manufacturing costs, which limits their mass production, especially for small-diameter equipment. The complex structure may also lead to additional energy consumption. In addition, existing mixers are inconvenient to maintain and operate; their internal components are often difficult to disassemble, making cleaning and maintenance cumbersome and increasing operating and maintenance costs. This problem is particularly pronounced in applications requiring regular cleaning or maintenance.

[0004] In summary, while existing in-line static mixers can meet fluid mixing requirements to some extent, they still have shortcomings in terms of structural simplification, manufacturing cost reduction, mixing efficiency improvement, operational stability, and maintenance convenience. Therefore, it is necessary to propose a new in-line static mixer that achieves a reasonable structure, low manufacturing cost, stable mixing effect, reliable operation, and easy maintenance, thereby better adapting to the application needs of water treatment and related fields. Utility Model Content

[0005] To address the problems in related technologies, this utility model proposes an easily disassembled pipeline static mixer to overcome the aforementioned technical problems in existing related technologies. The purpose of this utility model is to solve the problems of complex structure, high cost, unsatisfactory mixing effect, and inconvenient maintenance of existing pipeline static mixers. It effectively ensures the rapid dispersion of chemicals, while avoiding the increase in head loss caused by excessive convection. The mixing effect is significant and the operation is stable, making it particularly suitable for the mixing stage in the coagulation and chemical dosing process of waterworks.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an easily detachable static pipe mixer, comprising a pipe body, wherein a fixed partition and an installation short plate are sequentially arranged in the inner cavity of the pipe body, both the fixed partition and the installation short plate are fixedly welded to the inner wall of the pipe body, a movable partition is provided on the installation short plate, the fixed partition and the movable partition are connected by a rotating shaft, a first impeller and a second impeller are sequentially installed on the rotating shaft, a dosing pipe is connected to the top side of the pipe body, a through hole matching the rotating shaft is opened at the center of both the fixed partition and the movable partition, the rotating shaft is fixedly connected to the fixed partition and the movable partition respectively by bolts, a first mounting flange is connected to both ends of the pipe body, a second mounting flange is connected to the top of the dosing pipe, and mounting holes are equidistantly distributed in an annular pattern on both the first and second mounting flanges.

[0007] Preferably, both the first impeller and the second impeller are connected to the shaft using rolling bearings.

[0008] Preferably, the blades of the first impeller are arranged in a left-handed spiral, the blades of the second impeller are arranged in a right-handed spiral, and the diameter of the second impeller is smaller than the diameter of the first impeller.

[0009] Preferably, the pipe body and the dosing pipe are made of metal.

[0010] Compared with the prior art, the beneficial effects of this utility model are: (1) This utility model is an easy-to-disassemble pipeline static mixer. By setting a first impeller and a second impeller with opposite rotation direction and decreasing diameter, staggered stirring and local backflow are formed in a limited pipe section. This not only realizes the rapid dispersion and full mixing of the agent, but also effectively avoids the increase in head loss caused by excessive convection, significantly improves the mixing efficiency and ensures stable operation. (2) This utility model is an easy-to-disassemble static mixer for pipelines. By setting the first impeller and the second impeller to be connected to the rotating shaft by rolling bearings, the stability and durability of the rotating parts are enhanced. The rotating shaft is fixed to the fixed partition and the movable partition by bolts. Combined with the design of the first mounting flange at both ends of the pipeline and the second mounting flange on the dosing pipe, the overall structure is easy to assemble and disassemble, which greatly facilitates the later maintenance and component replacement. (3) This utility model is an easy-to-disassemble pipeline static mixer that is driven entirely by the kinetic energy of water flow and requires no external energy. It has the advantages of compact structure, low manufacturing cost, easy installation, low energy consumption and convenient maintenance. It is suitable for coagulation dosing, reaction premixing and other process links in various waterworks and water supply and drainage systems. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the pipe body of this utility model; Figure 3 This is a schematic diagram of the structure of the present invention from the left view; Figure 4 This is a side view sectional diagram of the present invention.

[0012] Figure label: 1. Pipe body; 2. Fixed baffle; 3. Mounting short plate; 4. Movable baffle; 5. Rotating shaft; 6. First impeller; 7. Second impeller; 8. Dosing pipe; 9. Mounting flange one; 10. Mounting flange two. Detailed Implementation

[0013] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0014] Example Please see Figure 1-4 This utility model proposes a technical solution for an easily detachable static pipeline mixer: An easily detachable static pipeline mixer includes a pipeline body 1. A fixed partition 2 and an mounting short plate 3 are sequentially arranged inside the pipeline body 1. Both the fixed partition 2 and the mounting short plate 3 are fixedly welded to the inner wall of the pipeline body 1. A movable partition 4 is arranged on the mounting short plate 3. The fixed partition 2 and the movable partition 4 are connected by a rotating shaft 5. A first impeller 6 and a second impeller 7 are sequentially mounted on the rotating shaft 5. A dosing pipe 8 is connected to one side of the top of the pipeline body 1. Specifically, the dosing pipe 8 is located upstream of the first impeller 6 and is used to inject coagulants and other agents into the interior of the pipeline body 1 before entering the first impeller 6. After the water flows into the pipeline body 1, it first drives the first impeller 6 to rotate, achieving initial agitation and dispersion of the agents. Subsequently, the water flow continues to drive the second impeller... The impeller 7 rotates, and because the blades of the first impeller 6 and the second impeller 7 are arranged in opposite directions, staggered agitation and local backflow are formed inside the pipe body 1, further enhancing the mixing process, so that the agent is fully structured and evenly distributed with the water in a short distance; the center of the fixed baffle 2 and the movable baffle 4 are provided with through holes that match the rotating shaft 5. The rotating shaft 5 is fixedly connected to the fixed baffle 2 and the movable baffle 4 by bolts, which specifically ensures that the rotating shaft 5 can be stably supported after assembly and is easy to disassemble and maintain; both ends of the pipe body 1 are connected to the mounting flange 9, and the top of the dosing pipe 8 is connected to the mounting flange 10. The mounting flange 9 and the mounting flange 10 are provided with mounting holes that are evenly distributed in a ring, which specifically improves the convenience and firmness of assembly.

[0015] Furthermore, both the first impeller 6 and the second impeller 7 are connected to the rotating shaft 5 using rolling bearings.

[0016] In this embodiment, the stability of the first impeller 6 and the second impeller 7 being movably connected to the rotating shaft 5 is effectively improved.

[0017] Please see Figure 2 As shown, the blades of the first impeller 6 are arranged in a left-handed manner, and the blades of the second impeller 7 are arranged in a right-handed manner. The diameter of the second impeller 7 is smaller than the diameter of the first impeller 6.

[0018] In this embodiment, a composite flow field can be formed within a limited pipe section, which ensures rapid dispersion of the agent and avoids increased head loss caused by excessive convection, resulting in significant mixing effect and stable operation.

[0019] Furthermore, the pipe body 1 and the dosing pipe 8 are made of metal.

[0020] In this embodiment, both the pipe body 1 and the dosing pipe 8 are made of aluminum alloy, which extends their service life.

[0021] The working principle of this utility model: The water to be treated enters the mixer from one end of the pipe body 1. Simultaneously, coagulants and other chemicals are injected into the pipe body 1 through the top dosing pipe 8, located upstream of the first impeller 6. This ensures the chemicals enter the water flow before contacting the first mixing element. The water carrying the chemicals first impacts and drives the first impeller 6 to rotate. The blades of the first impeller 6 are left-handed, and their rotation generates strong initial shearing and agitation on the fluid, rapidly dispersing the concentrated chemicals and achieving initial macroscopic mixing. The initially mixed fluid continues forward, driving the second impeller 7 to rotate. Because the second impeller 7 uses... The design, with a smaller diameter and a direction opposite to that of the first impeller 6 (right-handed), creates a stirring force in the fluid that is opposite to the direction of rotation of the first stage. These two opposing swirling flows interact to form an interlaced shear and local vortex backflow zone within the pipe body 1. This composite flow field greatly enhances the collision and diffusion between fluid micro-particles, enabling the reagent molecules and water to achieve full and uniform micro-mixing within a short distance. After the intense and efficient mixing generated by the first impeller 6 and the second impeller 7, the uniformly distributed mixture flows out from the other end of the pipe body 1 and enters the next processing stage.

[0022] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An easily detachable static pipe mixer, characterized in that, The system includes a pipe body (1), the inner cavity of which is sequentially provided with a fixed partition (2) and an mounting short plate (3). The fixed partition (2) and the mounting short plate (3) are both fixedly welded to the inner wall of the pipe body (1). A movable partition (4) is provided on the mounting short plate (3). The fixed partition (2) and the movable partition (4) are connected by a rotating shaft (5). A first impeller (6) and a second impeller (7) are sequentially mounted on the rotating shaft (5). The top of the pipe body (1) One side is connected to a dosing pipe (8). The center of the fixed partition (2) and the movable partition (4) are provided with through holes that match the rotating shaft (5). The rotating shaft (5) is fixedly connected to the fixed partition (2) and the movable partition (4) respectively by bolts. Both ends of the pipe body (1) are connected to the first mounting flange (9). The top of the dosing pipe (8) is connected to the second mounting flange (10). The first mounting flange (9) and the second mounting flange (10) are provided with mounting holes that are distributed in a ring at equal intervals.

2. The easily detachable static pipe mixer according to claim 1, characterized in that, Both the first impeller (6) and the second impeller (7) are connected to the shaft (5) by rolling bearings.

3. The easily detachable static pipe mixer according to claim 1, characterized in that, The blades of the first impeller (6) are arranged in a left-handed manner, and the blades of the second impeller (7) are arranged in a right-handed manner. The diameter of the second impeller (7) is smaller than the diameter of the first impeller (6).

4. The easily detachable static pipe mixer according to claim 1, characterized in that, The pipeline body (1) and the dosing pipe (8) are made of metal.

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