Fluid mixing device

Abstract

The present invention provides a fluid mixing device, which relates to the technical field of mixing equipment. The fluid mixing device includes a main pipeline, a stirring cavity body, and a filling pipeline. The main pipeline is used to inject a first fluid to be mixed from its first end, and the first fluid can flow from the first end of the main pipeline to the second end of the main pipeline; the stirring cavity body is rotatably installed in the main pipeline, a stirring cavity is formed in the stirring cavity body, and a through hole penetrating the stirring cavity is formed on the stirring cavity body; the first end of the filling pipeline extends into the stirring cavity, and a second fluid to be mixed can be injected into the stirring cavity from the first end of the filling pipeline; wherein, the flow of the first fluid in the main pipeline can drive the stirring cavity body to rotate, so that the first fluid and the second fluid are stirred and mixed. The stirring cavity body does not need to be configured with an auxiliary driving device, occupies a small space, is convenient for mixing in a narrow space, and at the same time, without an auxiliary driving device, the maintenance components of the fluid mixing device are also reduced, thereby reducing the maintenance and use costs.

Description

Technical Field

[0001] The present invention relates to the technical field of mixing devices, and particularly to a fluid mixing device. Background Art

[0002] At present, mixing operations are widely applied in industrial production, especially more widely used in light industries such as food, medicine, papermaking, textile, plastics, and rubber. For example, various chemical and biochemical reactors, liquid-liquid extraction, gas-liquid absorption, leaching, crystallization, and other heat transfer and mass transfer processes all involve mixing.

[0003] With the development of industries such as synthetic rubber, synthetic plastics, coatings, adhesives, cosmetics, paints, and fuels in our country, especially the mixing operations of viscous fluids and non-Newtonian fluids are increasing, and the mixing process is relatively complex. Therefore, the quality of material mixing directly affects the quality of products.

[0004] Mixing operations can be classified into mechanical stirring mixing, static mixing, and jet mixing according to their basic mixing methods. The above methods are all the results of forming a certain flow field by a certain form of fluid motion. Therefore, mixing mainly depends on fluid dynamics and is closely related to the properties of the mixed materials. In the above mixing, the principle of mechanical stirring is to use a rotating impeller to make the materials in the container move in a certain way to achieve mixing. The mixing components are in motion during the mixing process, and the motion of the mixing components is also assisted by an externally applied driving device to achieve the motion of the mixing components. Static mixing is to use several stationary mixing elements placed in a pipeline or equipment to "divide - position movement - re - converge" the passing materials to achieve the purpose of mixing. During mixing, "there are no moving parts in the pipeline, only stationary elements". Jet mixing is to use the entrainment effect of a high - speed jet to mix the fluids in a container or pipeline. A relatively high flow rate is required for the mixed materials during the mixing process.

[0005] At present, the mixing of materials is usually only simply through mechanical stirring driven by auxiliary power, or static mixer mixing, or a combination of several. For the mechanical stirring method, on the one hand, it requires auxiliary power, consumes a large amount of energy, and has a relatively high cost. For a static mixer, if it is not selected properly or the flow rate is not controlled accurately, the mixing effect will also be unsatisfactory. Jet mixing uses the entrainment effect and requires a relatively high flow rate, and is generally only used as a supplement to the mixing method. Summary of the Invention

[0006] In view of the above problems in the prior art, the present application proposes a fluid mixing device to solve the problem of unsatisfactory mixing effect of existing mixing devices.

[0007] The present invention provides a fluid mixing device, and the fluid mixing device includes:

[0008] A main pipeline for injecting a first fluid to be mixed from its first end, and the first fluid can flow from the first end of the main pipeline to the second end of the main pipeline;

[0009] A stirring cavity rotatably installed in the main pipeline, a stirring chamber is formed in the stirring cavity, and a perforated hole penetrating the stirring chamber is formed on the stirring cavity; and

[0010] A filling pipeline, the first end of which extends into the stirring chamber, and the second fluid to be mixed can be injected into the stirring chamber from the first end of the filling pipeline;

[0011] Wherein, the flow of the first fluid in the main pipeline can drive the stirring cavity to rotate, so that the first fluid and the second fluid are stirred and mixed.

[0012] As a further improvement of the above technical solution:

[0013] For the above fluid mixing device, further, a filling branch pipe is connected to the first end of the filling pipeline, the filling branch pipe can divide the stirring chamber, and a filling hole is formed on the filling branch pipe, and the second fluid can be injected into the stirring chamber from the filling hole.

[0014] For the above fluid mixing device, further, there are a plurality of the filling branch pipes, and the filling branch pipes extend along the radial direction of the stirring chamber.

[0015] For the above fluid mixing device, further, a spherical collecting cavity is provided at the first end of the filling pipeline, the filling branch pipe is connected to the spherical collecting cavity, and the second fluid can flow into the filling branch pipe from the spherical collecting cavity.

[0016] For the above fluid mixing device, further, the filling pipeline can rotate relative to the main pipeline.

[0017] For the above fluid mixing device, further, the stirring cavity is fixedly installed on the filling pipeline, and the stirring cavity can rotate around the axis of the filling pipeline.

[0018] For the above fluid mixing device, further, an installation hole is formed on the main pipeline, the fluid mixing device further includes an installation seat, the installation seat is hermetically installed at the installation hole of the main pipeline, and the filling pipeline is rotatably installed on the installation seat.

[0019] For the above fluid mixing device, further, the second end of the filling pipeline is connected to a connecting pipeline through a joint, and a one-way valve is installed on the connecting pipeline, and the one-way valve can control the one-way conduction of the second fluid in the direction of the main pipeline.

[0020] The above-mentioned fluid mixing device further has a baffle plate in the main pipeline, and the first fluid can flow to one side of the stirring chamber through the baffle plate to drive the stirring chamber to rotate.

[0021] The above-mentioned fluid mixing device further comprises a jet mixing mechanism at the second end of the main pipe, the jet mixing mechanism comprises a first pipe and tapered pipes respectively located at both ends of the first pipe, and the size of the first pipe is smaller than that of the main pipe.

[0022] The above technical features can be combined in various suitable ways or replaced by equivalent technical features as long as the purpose of the present invention can be achieved.

[0023] Compared with the prior art, the fluid mixing device provided by the present invention has at least the following beneficial effects: when it is necessary to mix the first fluid and the second fluid, the first fluid is injected from the first end of the main pipeline, the first fluid flows from the first end of the main pipeline to the second end of the main pipeline, and at the same time, the second fluid to be mixed is injected into the stirring chamber from the first end of the filling pipeline, and the flowing first fluid drives the stirring chamber to rotate, so that the first fluid and the second fluid are stirred and mixed. Since in the fluid mixing device, the stirring chamber rotates with the flow of the first fluid, the stirring chamber stops automatically when the flow in the main pipeline is cut off, thereby avoiding the stirring chamber from running dry, accumulating heat, and increasing the temperature when the flow is cut off, especially when transporting flammable and explosive materials for mixing, the risk of combustion and explosion is generated; the stirring chamber does not need to be equipped with an auxiliary drive device, occupies a small space, and is convenient for mixing in a small space. At the same time, no auxiliary drive device is required, thereby reducing the maintenance components of the fluid mixing device, thereby reducing the maintenance and use costs.

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0026] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings, wherein:

[0027] Figure 1 A schematic diagram showing the structure of a fluid mixing device provided by an embodiment of the present invention is shown;

[0028] Figure 2 shows Figure 1 a cross-sectional view of the A-A section in

[0029] Figure 3 shows Figure 1 a cross-sectional view of the B-B section in

[0030] In the drawings, like parts are designated by like reference numerals. The drawings are not drawn to scale.

[0031] Reference numerals:

[0032] 100 - fluid mixing device, 110 - main pipeline, 111 - mounting hole, 112 - baffle plate, 113 - first pipeline, 114 - conical pipeline, 115 - cover seal, 120 - stirring cavity, 121 - perforated hole, 130 - filling pipeline, 131 - filling branch pipe, 132 - filling hole, 133 - collecting cavity, 140 - mounting seat, 141 - sealing ring, 150 - joint, 160 - connecting pipeline, 170 - check valve, 180 - stirring mechanism. Detailed description of the specific implementation

[0033] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as limiting the present invention.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

[0035] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0036] In the present invention, unless otherwise clearly specified or limited, terms such as "installed", "connected", "linked", "fixed", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the present invention, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0038] The present invention will be further described below with reference to the accompanying drawings.

[0039] An embodiment of the present invention provides a fluid mixing device 100 to solve the problem of unsatisfactory mixing effect of existing mixing devices.

[0040] Please refer to Figure 1 and Figure 2 For the fluid mixing device 100 provided by the embodiment of the present invention, the fluid mixing device 100 includes a main pipeline 110, a stirring cavity 120, and a filling pipeline 130.

[0041] The main pipeline 110 is used to inject a first fluid to be mixed from its first end, and the first fluid can flow from the first end of the main pipeline 110 to the second end of the main pipeline 110; the stirring cavity 120 is rotatably installed in the main pipeline 110, a stirring chamber is formed in the stirring cavity 120, and a through hole 121 penetrating the stirring chamber is formed on the stirring cavity 120; the first end of the filling pipeline 130 extends into the stirring chamber, and a second fluid to be mixed can be injected into the stirring chamber from the first end of the filling pipeline 130; wherein, the flow of the first fluid in the main pipeline 110 can drive the stirring cavity 120 to rotate, so that the first fluid and the second fluid are stirred and mixed.

[0042] When it is necessary to mix the first fluid and the second fluid, the first fluid is injected from the first end of the main pipeline 110, and the first fluid flows from the first end of the main pipeline 110 to the second end of the main pipeline 110. At the same time, the second fluid to be mixed is injected from the first end of the filling pipeline 130 into the stirring cavity. The flowing first fluid drives the stirring cavity 120 to rotate, so that the first fluid and the second fluid are stirred and mixed.

[0043] In the fluid mixing device 100 provided by the embodiment of the present invention, since the stirring cavity 120 rotates self - driven along with the flow of the first fluid, when the flow in the main pipeline 110 is interrupted, the stirring cavity 120 stops automatically, thus avoiding the dry rotation, heat accumulation and temperature rise of the stirring cavity 120 during the interruption of the flow. Especially when mixing flammable and explosive materials, the risk of combustion and explosion is eliminated; the stirring cavity 120 does not need to be equipped with an auxiliary driving device, which occupies less space and is convenient for mixing in a narrow space. At the same time, without an auxiliary driving device, the maintenance components of the fluid mixing device 100 are reduced, thereby reducing the maintenance and use costs.

[0044] For the fluid mixing device 100 provided by the embodiment of the present invention, further, please refer specifically to Figure 2 , the first end of the filling pipeline 130 is communicated with a filling branch pipe 131. The filling branch pipe 131 can divide the stirring cavity, and a filling hole 132 is opened on the filling branch pipe 131. The second fluid can be injected into the stirring cavity from the filling hole 132. In this embodiment, there are multiple filling branch pipes 131, and the filling branch pipes 131 extend along the radial direction of the stirring cavity.

[0045] When it is necessary to mix the first fluid and the second fluid, the first fluid is injected from the first end of the main pipeline 110, and the first fluid flows from the first end of the main pipeline 110 to the second end of the main pipeline 110. At the same time, the second fluid to be mixed is injected from the first end of the filling pipeline 130 into the stirring cavity. The flowing first fluid drives the stirring cavity 120 to rotate. The first fluid entering the stirring cavity is cut by the filling branch pipe 131 and at the same time is stirred and mixed with the second fluid injected from the filling hole 132, meeting all the conditions of the stirring and mixing of "division - position movement - re - convergence", with excellent mixing effect, small volume occupied by the stirring and mixing mechanism, small overall space required for the fluid mixing device 100, and broader application scenarios.

[0046] Each filling branch pipe 131 is respectively communicated with the filling pipeline 130. The second fluid to be mixed enters the interior of each filling branch pipe 131 through the filling pipeline 130 and flows out from each filling hole 132. The mixed second fluid is ejected in a spherical three - dimensional scattering state and is fully mixed with the first fluid in the main pipeline 110, with good mixing effect, and can maintain a good mixing effect even when the raw material ratio difference in the mixing is large.

[0047] The stirring cavity 120 disperses the first fluid injected into the main pipeline 110 sufficiently, increasing the mixing area and mixing space with the second fluid. The second fluid to be mixed enters the interior of each filling branch pipe 131 through the filling pipeline 130 and flows out from each filling hole 132. The mixed second fluid is ejected in a spherical three-dimensional scattering state, dispersing in all directions and mixing with the first fluid. At the same time, the stirring cavity 120 forms a self-rotation driving force under the impact force of the first fluid, so that while achieving dispersion and mixing, the fluid can be stirred synchronously. At the same time, the stirring cavity constitutes a quasi-static mixer for dispersing and cutting the fluid, further enhancing the fluid mixing effect.

[0048] For the fluid mixing device 100 provided by the embodiment of the present invention, further, please specifically refer to Figure 2 , a spherical collecting cavity 133 is provided at the first end of the filling pipeline 130. The filling branch pipes 131 communicate with the spherical collecting cavity 133. The second fluid can flow into the filling branch pipes 131 from the spherical collecting cavity 133. At the same time, the filling pipeline 130 can rotate relative to the main pipeline 110. In this embodiment, the stirring cavity 120 is fixedly installed on the filling pipeline 130, and the stirring cavity 120 can rotate around the axis of the filling pipeline 130.

[0049] When it is necessary to mix the first fluid and the second fluid, the first fluid is injected from the first end of the main pipeline 110, and the first fluid flows from the first end of the main pipeline 110 to the second end of the main pipeline 110. At the same time, the second fluid to be mixed is injected into the stirring cavity from the first end of the filling pipeline 130. The flowing first fluid drives the stirring cavity 120 and the filling pipeline 130 to rotate at the same time. The first fluid entering the stirring cavity is cut by the filling branch pipes 131 and is stirred and mixed with the second fluid injected from the filling holes 132 at the same time. Since in this embodiment, the filling pipeline 130 also rotates with the first fluid, the rotating stirring cavity 120 and the filling pipeline 130 stir and mix the first fluid and the second fluid at the same time, further improving the mixing effect of the first fluid and the second fluid.

[0050] For the fluid mixing device 100 provided by the embodiment of the present invention, specifically, please specifically refer to Figure 2, an installation hole 111 is formed in the main pipeline 110. The fluid mixing device 100 further includes a mounting seat 140, which is sealingly installed at the installation hole 111 of the main pipeline 110, and the filling pipeline 130 is rotatably installed on the mounting seat 140. In this embodiment, a sealing ring 141 is provided between the mounting seat 140 and the main pipeline 110 to enhance the sealing performance between the mounting seat 140 and the main pipeline 110; the filling pipeline 130 is rotatably installed on the mounting seat 140 through a bearing, and the other end of the stirring unit formed by the stirring cavity 120 and the filling pipeline 130 is rotatably installed on the main pipeline 110 through a bearing and is sealed by a mounting cover 115 to prevent the fluid in the main pipeline 110 from flowing out of the main pipeline 110.

[0051] In the fluid mixing device 100 provided by the embodiment of the present invention, further, the second end of the filling pipeline 130 is connected to a connecting pipeline 160 through a joint 150, and a one-way valve 170 is installed on the connecting pipeline 160. The one-way valve 170 can control the one-way conduction of the second fluid in the direction of the main pipeline 110. Please refer to Figure 3 , a baffle 112 is provided in the main pipeline 110, and the first fluid can flow to one side of the stirring cavity 120 under the action of the baffle 112, driving the stirring cavity 120 to rotate. In this embodiment, the extending direction of the baffle 112 is parallel to the rotation axis of the stirring cavity 120. By the self-flow of the mixed fluid, a biasing rotational force is formed on the stirring unit formed by the stirring cavity and the filling pipeline 130, so that the mixing unit rotates automatically without the need of an external auxiliary driving device, thereby stirring and mixing the fluid.

[0052] In the fluid mixing device 100 provided by the embodiment of the present invention, further, please specifically refer to Figure 1 and Figure 3 , a jet mixing mechanism is provided at the second end of the main pipeline 110. The jet mixing mechanism includes a first pipeline 113 and conical pipelines 114 located at both ends of the first pipeline 113 respectively. The size of the first pipeline 113 is smaller than that of the main pipeline 110. The configured jet mixing mechanism generates turbulence through the high-speed flow of the fluid in the main pipeline 110, thereby forming an effect of further enhancing mixing.

[0053] In the fluid mixing device 100 provided by the embodiment of the present invention, further, please specifically refer to Figure 1 and Figure 3, a stirring mechanism 180 is rotatably installed in the main pipeline 110. The stirring mechanism 180 includes a stirring housing rotatably installed in the main pipeline 110. A stirring chamber is formed in the stirring housing. The stirring housing is provided with through holes communicating with the stirring chamber. A stirring rod is installed in the stirring chamber of the stirring housing. The stirring rod is radially arranged with the center of the stirring chamber as the center. A baffle 112 is provided in the main pipeline 110. The first fluid can flow to one side of the stirring housing under the action of the baffle 112, driving the stirring housing to rotate. In this embodiment, the extending direction of the baffle 112 is parallel to the rotation axis of the stirring housing. An offset rotational force is formed on the stirring unit formed by the mixing cavity and the filling pipeline 130 through the self-flow of the mixed fluid, so that the mixing unit rotates by itself without the need of an external auxiliary driving device, thereby stirring and mixing the fluid. The stirring mechanism 180 can enhance the mixing effect of the fluid.

[0054] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0055] Although the present invention has been described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed, as long as they do not deviate from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the different dependent claims and the features described herein can be combined in a manner different from that described in the original claims. It should also be understood that the features described in connection with a single embodiment can be used in other described embodiments.

Claims

1. A fluid mixing device, characterized in that, The fluid mixing device includes: A main pipeline for injecting a first fluid to be mixed from its first end, and the first fluid can flow from the first end of the main pipeline to the second end of the main pipeline; A stirring cavity rotatably installed in the main pipeline, a stirring chamber is formed in the stirring cavity, and a perforated hole penetrating the stirring chamber is formed on the stirring cavity; and A filling pipeline, the first end of which extends into the stirring chamber, and the second fluid to be mixed can be injected into the stirring chamber from the first end of the filling pipeline; Wherein, the flow of the first fluid in the main pipeline can drive the stirring cavity to rotate, so that the first fluid and the second fluid are stirred and mixed.

2. The fluid mixing device according to claim 1, characterized in that, The first end of the filling pipeline is communicated with a filling branch pipe, the filling branch pipe can divide the stirring chamber, and a filling hole is formed on the filling branch pipe, and the second fluid can be injected into the stirring chamber from the filling hole.

3. The fluid mixing device according to claim 2, wherein, There are multiple filling branch pipes, and the filling branch pipes extend along the radial direction of the stirring chamber.

4. The fluid mixing device according to claim 3, characterized in that, A spherical collecting cavity is arranged at the first end of the filling pipeline, the filling branch pipe is communicated with the spherical collecting cavity, and the second fluid can flow into the filling branch pipe from the spherical collecting cavity.

5. The fluid mixing device according to claim 1, wherein The filling pipeline can rotate relative to the main pipeline.

6. The fluid mixing device according to claim 5, wherein, The stirring cavity is fixedly installed on the filling pipeline, and the stirring cavity can rotate around the axis of the filling pipeline.

7. The fluid mixing device according to claim 6, characterized in that, An installation hole is formed on the main pipeline, and the fluid mixing device further includes an installation seat, the installation seat is hermetically installed at the installation hole of the main pipeline, and the filling pipeline is rotatably installed on the installation seat.

8. The fluid mixing device according to claim 7, characterized in that, The second end of the filling pipeline is communicated with a connecting pipeline through a joint, and a one-way valve is installed on the connecting pipeline, and the one-way valve can control the one-way conduction of the second fluid in the direction of the main pipeline.

9. The fluid mixing device according to claim 1, wherein A baffle plate is arranged in the main pipeline, and the first fluid can flow to one side of the stirring cavity under the action of the baffle plate, driving the stirring cavity to rotate.

10. The fluid mixing device according to claim 1, wherein, A jet mixing mechanism is arranged at the second end of the main pipeline, and the jet mixing mechanism includes a first pipeline and conical pipelines respectively located at both ends of the first pipeline, and the size of the first pipeline is smaller than the size of the main pipeline.

Images