Negative pressure fluid mixer

Abstract

The application belongs to the technical field of gas-liquid mixing, and discloses a negative pressure fluid mixer, which comprises a mixer body, a mixing cavity is arranged in the mixer body, a liquid inlet joint is fixedly installed on the side surface of the mixer body, two negative pressure through holes are symmetrically arranged at the bottom of the mixing cavity, the negative pressure through holes are in a conical shape, a negative pressure inlet is arranged below the mixer body, the negative pressure inlet is connected with the negative pressure through holes, a discharge port is formed at the top of the mixer body, a discharge pipe is arranged above the mixer body, the bottom of the discharge pipe is connected with the discharge port, and a first cyclone mechanism and a second cyclone mechanism are installed in the discharge pipe. The negative pressure through holes are in a conical shape, so that the negative pressure intensity is further increased, and then under the action of the first cyclone mechanism and the second cyclone mechanism, the fluid can be more fully contacted and mixed with the fluid or the gas.

Description

Technical Field

[0001] This invention belongs to the field of gas-liquid mixing, and specifically discloses a negative pressure fluid mixer. Background Technology

[0002] A gas-liquid mixing pump is a type of pump specifically designed for conveying mixtures of liquids and gases. It can effectively handle mixtures containing bubbles, gases, or vapors while maintaining stable flow and pressure output.

[0003] The existing negative pressure fluid mixer with application number 202420083137.7 describes a complex dual-cavity design. It consists of three components—a jet top cover, a mixing seat, and a negative pressure base—welded together using ultrasonic technology to form a double spherical inner cavity and a negative pressure cavity. The liquid enters along the tangent of the mixing cavity. The two mixing cavities operate independently. The negative pressure through-hole is located at the bottom of the mixing cavity, which is the center of the vortex and also the point of highest negative pressure. After entering through the negative pressure inlet, the fluid mixes with the liquid through friction. Then, it is ejected through the jet hole while simultaneously using the Venturi principle to further break up and mix the bubbles or liquid, resulting in good mixing uniformity. However, the negative pressure intensity still has room for improvement, and the device's gas-liquid mixing is not refined enough, indicating potential for upgrades. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to propose a negative pressure fluid mixer to address the fact that the negative pressure intensity of the existing technology still has room for improvement, and that the mixing of gas and liquid is not refined enough and has room for upgrading.

[0005] To achieve the above objectives, the present invention provides a negative pressure fluid mixer, comprising a mixer body, an internal mixing cavity, a liquid inlet connector fixedly installed on the side of the mixer body, two negative pressure through holes symmetrically arranged at the bottom of the mixing cavity, the negative pressure through holes being conical, a negative pressure inlet provided at the bottom of the mixer body, the negative pressure inlet being connected to the negative pressure through holes, a discharge port provided at the top of the mixer body, a discharge pipe provided above the mixer body, the bottom of the discharge pipe being connected to the discharge port, and a first swirling mechanism and a second swirling mechanism installed inside the discharge pipe.

[0006] In the above technical solution, preferably, the end of the mixing cavity is set in an arc shape, and the connection between the liquid inlet connector and the mixing cavity is provided with a liquid inlet notch.

[0007] In the above technical solution, preferably, a connecting cover is fixedly installed on the top of the negative pressure inlet, a negative pressure cavity is opened inside the connecting cover, the top of the negative pressure cavity is connected to two negative pressure through holes, and the negative pressure inlet is connected to the bottom of the negative pressure cavity.

[0008] In the above technical solution, preferably, a first fixing plate is installed at the bottom of the inside of the discharge pipe, the first vortex mechanism is arranged above the first fixing plate, the second vortex mechanism is arranged above the first vortex mechanism, a second fixing plate is installed at the top of the inside of the discharge pipe, the second fixing plate is arranged above the second vortex mechanism, and multiple through grooves are opened on the surface of both the first fixing plate and the second fixing plate.

[0009] In the above technical solution, preferably, the first swirling mechanism includes a flow divider plate, which is fixedly installed inside the discharge pipe. A cone is fixedly installed at the bottom of the flow divider plate, with the pointed end of the cone facing downwards. Eight first mating holes are evenly provided on the surface of the flow divider plate and on the side of the cone. A first conical block is fixedly installed at the top of the flow divider plate. The top of the first conical block is set as a plane. Eight first arc-shaped flow grooves are evenly provided on the surface of the first conical block. The eight first mating holes correspond to the eight first arc-shaped flow grooves respectively. A first inclined surface is provided on the inner wall of the discharge pipe, and the first inclined surface is close to the surface of the first conical block.

[0010] In the above technical solution, preferably, the second vortex mechanism includes a second conical block, a fixing column is fixedly installed at the middle of the bottom of the second fixing plate, the bottom of the fixing column is fixedly connected to the second conical block, eight second arc-shaped flow grooves are evenly opened on the surface of the second conical block, and a second inclined surface is provided inside the discharge pipe, the second inclined surface being close to the surface of the second conical block.

[0011] In the above technical solution, preferably, a fixed plate is installed inside the discharge pipe and between the first conical block and the second conical block, and an output hole is opened in the middle of the fixed plate.

[0012] In the above technical solution, preferably, the first arc-shaped flow channel and the second arc-shaped flow channel are in opposite directions.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] By setting the negative pressure through hole to a conical shape, this design can meet the fluid state characteristics of the maximum negative pressure region of the fluid vortex, further increasing the negative pressure intensity.

[0015] Next, by making the inlet and outlet directions of the fluid 90 degrees, the fluid enters the mixing chamber tangentially from the inlet. The fluid rotates at high speed in the mixing chamber, generating negative pressure. Under the suction of the negative pressure, the fluid or gas enters the negative pressure chamber through the negative pressure inlet, and then enters the mixing chamber from the negative pressure chamber. After entering, the liquid and gas rotate at high speed and rub against each other. Then, they are sprayed into the discharge pipe through the discharge port. Finally, the fluid and gas come into contact and mix with each other through the first and second swirling mechanisms inside the discharge pipe.

[0016] Finally, by layering the first and second swirling mechanisms, the fluid flowing through the discharge pipe can generate multiple swirling effects at different levels, enhancing the rotation intensity and mixing effect of the fluid. This allows the fluid to come into more thorough contact and mix with other fluids or gases. This design also refines the gas-liquid mixing. Furthermore, the first and second arc-shaped flow channels are in opposite directions, causing the fluid to undergo different swirling motions as it passes through them, further improving the uniformity and thoroughness of fluid mixing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a top-view or front-view schematic diagram of the hybrid internal cavity of the present invention;

[0019] Figure 3 This is a top view schematic diagram of the hybrid internal cavity structure of the present invention;

[0020] Figure 4 This is a schematic diagram of the internal structure of the discharge pipe of the present invention;

[0021] Figure 5 This is a schematic diagram of the first swirl mechanism of the present invention;

[0022] Figure 6 This is a schematic diagram of the second swirl mechanism of the present invention.

[0023] In the diagram: 1. Mixer body; 2. Liquid inlet connector; 3. Negative pressure inlet; 4. Mixing chamber; 5. Connecting cover; 6. Negative pressure through hole; 7. Discharge port; 8. Discharge pipe; 9. First fixed plate; 10. Second fixed plate; 11. First vortex mechanism; 12. Second vortex mechanism; 13. Cone; 14. Diverter plate; 15. First mating hole; 16. First conical block; 17. First arc-shaped flow channel; 18. First inclined surface; 19. Fixed plate; 20. Output hole; 21. Second conical block; 22. Second arc-shaped flow channel; 23. Second inclined surface; 24. Fixed column; 25. Liquid inlet notch. Detailed Implementation

[0024] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the invention is not limited to the specific embodiments disclosed below.

[0026] like Figures 1-6 The negative pressure fluid mixer shown includes a mixer body 1, with a mixing chamber 4 inside the mixer body 1. An inlet connector 2 is fixedly installed on the side of the mixer body 1. Two negative pressure through holes 6 are symmetrically arranged at the bottom of the mixing chamber 4. The negative pressure through holes 6 are conical in shape, a design that satisfies the fluid characteristics of the maximum negative pressure region of the fluid vortex, further increasing the negative pressure intensity. The two negative pressure through holes 6 are respectively located at the center of the two mixing chambers 4, which is the point of maximum vortex negative pressure. A negative pressure inlet 3 is located at the bottom of the mixer body 1, connecting to the negative pressure through holes 6. A discharge port 7 is opened at the top of the mixer body 1. A [further details about the top of the mixer body 1 are missing from the original text.] There is a discharge pipe 8, the bottom of which is connected to the discharge port 7. The discharge pipe 8 is equipped with a first swirling mechanism 11 and a second swirling mechanism 12. The fluid inlet and outlet directions are 90 degrees apart. The fluid enters the mixing chamber 4 from the inlet tangential direction. The fluid rotates at high speed in the mixing chamber 4 to generate negative pressure. Under the suction of the negative pressure, the fluid or gas enters the negative pressure chamber through the negative pressure inlet 3 and then enters the mixing chamber 4. After entering, the liquid and fluid rotate at high speed and rub against each other. Then, they are sprayed into the discharge pipe 8 through the discharge port 7. Finally, through the first swirling mechanism 11 and the second swirling mechanism 12 inside the discharge pipe 8, the fluid and fluid or gas can be more fully contacted and mixed.

[0027] The end of the mixing chamber 4 is set in an arc shape, and the connection between the liquid inlet connector 2 and the mixing chamber 4 is provided with a liquid inlet notch 25. By setting the end of the mixing chamber 4 in an arc shape, the fluid is input into the mixing chamber 4 through the liquid inlet notch 25. The fluid enters the ball cavity from the inlet tangential direction and moves in the cavity in a rotating vortex manner, which can make the fluid enter the mixing chamber 4 more smoothly, reduce the energy loss and resistance caused by collision and impact when the fluid enters, reduce the pressure loss in the fluid transportation process, improve the efficiency of fluid transmission, and the vortex motion can make more complete contact and mixing, making the mixing more uniform and efficient, which is conducive to improving the mixing quality and effect of the mixer.

[0028] A connecting cover 5 is fixedly installed on the top of the negative pressure inlet 3. A negative pressure chamber is opened inside the connecting cover 5. The top of the negative pressure chamber is connected to two negative pressure through holes 6, and the negative pressure inlet 3 is connected to the bottom of the negative pressure chamber. By opening a negative pressure chamber inside the connecting cover 5 and connecting the top of the negative pressure chamber to the two negative pressure through holes 6 and the bottom to the negative pressure inlet 3, a stable and unobstructed negative pressure transmission channel can be ensured between the negative pressure source and the inside of the mixer. This can continuously and stably provide the required negative pressure environment for the relevant operations in the mixer, ensuring the stability and reliability of the entire system operation.

[0029] A first fixed plate 9 is installed at the bottom of the inside of the discharge pipe 8. A first swirling mechanism 11 is located above the first fixed plate 9, and a second swirling mechanism 12 is located above the first swirling mechanism 11. A second fixed plate 10 is installed at the top of the inside of the discharge pipe 8. The second fixed plate 10 is located above the second swirling mechanism 12. Multiple through slots are opened on the surfaces of the first fixed plate 9 and the second fixed plate 10. The first swirling mechanism 11 and the second swirling mechanism 12 are arranged in layers, which can make the fluid flowing through the discharge pipe 8 produce multiple swirling effects at different levels. The first swirling mechanism 11 in the lower layer first swirls the fluid, so that the fluid forms a preliminary rotating flow state. Then the fluid rises to the second swirling mechanism 12 and is swirled again, which further enhances the rotation intensity and mixing effect of the fluid, and can make the fluid contact and mix with other fluids or gases more fully.

[0030] The first swirling mechanism 11 includes a flow divider plate 14, which is fixedly installed inside the discharge pipe 8. A cone 13 is fixedly installed at the bottom of the flow divider plate 14, with the pointed end of the cone 13 facing downwards. When fluid flows from below into the first swirling mechanism 11, the cone 13 effectively divides the fluid, allowing it to spread evenly in all directions and preventing it from concentrating in the central area of ​​the discharge pipe 8. This lays the foundation for subsequent swirling and mixing. Eight first mating holes 15 are evenly provided on the surface of the flow divider plate 14 and on the side of the cone 13. A first circular... The top of the first conical block 16 is set as a plane, and eight first arc-shaped flow grooves 17 are evenly opened on the surface of the first conical block 16. The eight first mating holes 15 correspond to the eight first arc-shaped flow grooves 17 respectively. The inner wall of the discharge pipe 8 is provided with a first inclined surface 18, which is close to the surface of the first conical block 16. When the fluid enters from the first mating hole 15 and flows to the first arc-shaped flow groove 17, due to the special shape of the arc-shaped flow groove, it will guide the fluid to flow along a specific arc-shaped path, thereby generating a rotational motion of the fluid, providing power for the fluid to form a swirling flow in the discharge pipe 8, and enhancing the mixing effect between the fluids.

[0031] The second swirling mechanism 12 includes a second conical block 21. A fixing column 24 is fixedly installed at the middle of the bottom of the second fixing plate 10. Under the action of the fixing column 24, the second conical block 21 can be fixed to ensure the stability of the second conical block 21 during operation. The bottom of the fixing column 24 is fixedly connected to the second conical block 21. Eight second arc-shaped flow grooves 22 are evenly opened on the surface of the second conical block 21. A second inclined surface 23 is provided inside the discharge pipe 8. The second inclined surface 23 is close to the surface of the second conical block 21. The fluid coming from below flows along a specific arc-shaped path through the eight evenly opened second arc-shaped flow grooves 22 on the surface of the second conical block 21, causing the fluid to rotate and further enhance the swirling effect of the fluid in the discharge pipe 8, allowing the components in the fluid to mix and contact each other more fully, improving the uniformity and fullness of the mixing.

[0032] A fixed plate 19 is installed inside the discharge pipe 8 and between the first conical block 16 and the second conical block 21. An output hole 20 is provided in the middle of the fixed plate 19. The output hole 20 can concentrate the fluid swirling in the first swirling mechanism 11 and the fluid will be concentratedly transmitted to the second swirling mechanism 12.

[0033] The first arc-shaped flow channel 17 and the second arc-shaped flow channel 22 are in opposite directions. When the fluid passes through the first arc-shaped flow channel 17 and the second arc-shaped flow channel 22, it will undergo different swirling motions. This design can further improve the uniformity and completeness of mixing.

[0034] Working principle: First, the fluid is pumped into the mixing chamber 4 through the inlet connector 2. Inside the mixing chamber 4, the fluid enters tangentially from the inlet. The high-speed rotation of the fluid within the mixing chamber 4 generates negative pressure. Under the suction of this negative pressure, the fluid or gas enters the negative pressure chamber through the negative pressure inlet 3, and then from the negative pressure chamber into the mixing chamber 4. Upon entry, the liquid and gas simultaneously rotate and rub against each other at high speed. The fluid is then ejected into the discharge pipe 8 through the outlet 7. After entering the discharge pipe 8, the fluid is first dispersed by the grooves on the surface of the first fixed plate 9. Subsequently, the cone 13 can divert the fluid, causing it to diffuse evenly in all directions. When the fluid flows from the first fixed plate... When the fluid enters through the orifice 15 and flows into the first arc-shaped flow channel 17, the special shape of the arc-shaped flow channel guides the fluid to flow along a specific arc-shaped path, thereby causing the fluid to rotate. Then, the output orifice 20 can concentrate the fluid swirling in the first swirling mechanism 11 and concentrate the fluid to the second arc-shaped flow channel 22 on the surface of the second conical block 21. The fluid flows along the specific arc-shaped path again, causing the fluid to rotate, further enhancing the swirling effect of the fluid in the discharge pipe 8. Finally, the fluid is ejected from the through groove on the surface of the second fixed plate 10. This method can more fully allow the fluid to come into contact with and mix with other fluids or gases.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A negative pressure fluid mixer, comprising a mixer body (1), characterized in that, The mixer body (1) has a mixing chamber (4) inside. A liquid inlet connector (2) is fixedly installed on the side of the mixer body (1). Two negative pressure through holes (6) are symmetrically arranged at the bottom of the mixing chamber (4). The negative pressure through holes (6) are cone-shaped. A negative pressure inlet (3) is arranged below the mixer body (1). The negative pressure inlet (3) is connected to the negative pressure through holes (6). A discharge port (7) is opened at the top of the mixer body (1). A discharge pipe (8) is arranged above the mixer body (1). The bottom of the discharge pipe (8) is connected to the discharge port (7). A first vortex mechanism (11) and a second vortex mechanism (12) are installed inside the discharge pipe (8). The bottom of the discharge pipe (8) is equipped with a first fixing plate (9), the first swirling mechanism (11) is located above the first fixing plate (9), the second swirling mechanism (12) is located above the first swirling mechanism (11), the top of the discharge pipe (8) is equipped with a second fixing plate (10), the second fixing plate (10) is located above the second swirling mechanism (12), and the surfaces of the first fixing plate (9) and the second fixing plate (10) are provided with multiple through slots; The first swirling mechanism (11) includes a flow divider plate (14), which is fixedly installed inside the discharge pipe (8). A cone (13) is fixedly installed at the bottom of the flow divider plate (14), with the tip of the cone (13) at the bottom. Eight first mating holes (15) are evenly opened on the surface of the flow divider plate (14) and on the side of the cone (13). A first conical block (16) is fixedly installed at the top of the flow divider plate (14). The top of the first conical block (16) is set as a plane. Eight first arc-shaped flow grooves (17) are evenly opened on the surface of the first conical block (16). The eight first mating holes (15) correspond to the eight first arc-shaped flow grooves (17) respectively. A first inclined surface (18) is provided on the inner wall of the discharge pipe (8). The first inclined surface (18) is close to the surface of the first conical block (16). The second swirling mechanism (12) includes a second conical block (21). A fixed column (24) is fixedly installed at the middle of the bottom of the second fixed plate (10). The bottom of the fixed column (24) is fixedly connected to the second conical block (21). Eight second arc-shaped flow grooves (22) are evenly opened on the surface of the second conical block (21). A second inclined surface (23) is provided inside the discharge pipe (8). The second inclined surface (23) is close to the surface of the second conical block (21).

2. The negative pressure fluid mixer according to claim 1, characterized in that, The end of the mixing chamber (4) is set in an arc shape, and the connection between the liquid inlet connector (2) and the mixing chamber (4) is provided with a liquid inlet notch (25).

3. The negative pressure fluid mixer according to claim 2, characterized in that, A connecting cover (5) is fixedly installed on the top of the negative pressure inlet (3). A negative pressure cavity is opened inside the connecting cover (5). The top of the negative pressure cavity is connected to two negative pressure through holes (6). The negative pressure inlet (3) is connected to the bottom of the negative pressure cavity.

4. The negative pressure fluid mixer according to claim 1, characterized in that, A fixed plate (19) is installed inside the discharge pipe (8) and between the first conical block (16) and the second conical block (21). An output hole (20) is provided in the middle of the fixed plate (19).

5. The negative pressure fluid mixer according to claim 4, characterized in that, The first arc-shaped flow channel (17) is in the opposite direction to the second arc-shaped flow channel (22).

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