Negative pressure fluid mixer

Abstract

The invention belongs to the technical field of gas-liquid mixing, and particularly discloses a negative pressure fluid mixer which comprises a mixer body, a mixing inner cavity is formed in the mixer body, a liquid inlet connector is fixedly installed on the side face of the mixer body, two negative pressure through holes are symmetrically formed in the bottom of the mixing inner cavity, and a liquid outlet connector is fixedly installed in the mixing inner cavity. A negative pressure through hole is formed in the mixer body, the negative pressure through hole is conical, a negative pressure inlet is formed in the lower portion of the mixer body and connected with the negative pressure through hole, a discharging port is formed in the top of the mixer body, a discharging pipe is arranged on the upper portion of the mixer body, and the bottom of the discharging pipe is connected with the discharging port. And a first rotational flow mechanism and a second rotational flow mechanism are mounted in the discharging pipe. According to the invention, the negative pressure through hole is arranged to be conical, so that the negative pressure strength can be further improved, and then under the action of the first rotational flow mechanism and the second rotational flow mechanism, fluid and fluid or gas can be contacted and mixed more sufficiently.

Description

Technical Field

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

[0002] A gas-liquid mixing pump is a pump device specially used to transport a mixture of liquid and gas. It can effectively handle mixtures containing bubbles, gas or steam and maintain a stable flow and pressure output.

[0003] The negative pressure fluid mixer with the existing application number 202420083137.7 indicates that a complex dual-cavity setting is adopted. The three components of the injection top cover, the mixing seat body and the negative pressure base are welded by ultrasonic technology to form a double spherical cavity and a negative pressure cavity. The liquid inlet direction enters along the tangent of the mixing cavity. The two mixing cavities work independently. The negative pressure through hole is located at the bottom of the mixing cavity. This position is the vortex center point of the mixing cavity and also the highest point of negative pressure. After the fluid enters through the negative pressure inlet, it is frictionally mixed with the liquid, and then ejected through the injection hole. At the same time, the Venturi principle is used to break up and mix the bubbles or liquid for the second time. The mixing effect is uniform, but the negative pressure strength still has room for improvement, and the device is not refined enough for the mixing of gas and liquid, and there is room for upgrading. Summary of the invention

[0004] In view of this, the purpose of the present invention is to propose a negative pressure fluid mixer to solve the problem that the negative pressure strength of the prior art still needs to be improved, and the mixing of gas and liquid by the device is not refined enough and there is room for upgrading.

[0005] To achieve the above objectives, the present invention provides a negative pressure fluid mixer, comprising a mixer body, a mixing cavity is arranged inside the mixer body, a liquid inlet joint is fixedly installed on the side 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 arranged in a cone shape, a negative pressure inlet is arranged below the mixer body, the negative pressure inlet is connected to the negative pressure through holes, a discharge port is opened at the top of the mixer body, a discharge pipe is arranged above the mixer body, the bottom of the discharge pipe is connected to the discharge port, and a first cyclone mechanism and a second cyclone mechanism are installed inside the discharge pipe.

[0006] In the above technical solution, preferably, the end of the mixing cavity is arranged in an arc shape, and a liquid inlet notch is arranged at the connection between the liquid inlet joint and the mixing cavity.

[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 the 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 fixed plate is installed at the bottom end of the discharge pipe, the first cyclone mechanism is arranged above the first fixed plate, the second cyclone mechanism is arranged above the first cyclone mechanism, a second fixed plate is installed at the top end of the discharge pipe, the second fixed plate is arranged above the second cyclone mechanism, and a plurality of through grooves are provided on the surfaces of the first fixed plate and the second fixed plate.

[0009] In the above technical solution, preferably, the first cyclone mechanism includes a diverter plate, which is fixedly installed inside the discharge pipe, and a cone is fixedly installed on the bottom of the diverter plate, with the pointed end of the cone located at the bottom, and eight first matching holes are evenly provided on the surface of the diverter plate and on the side of the cone, and a first conical block is fixedly installed on the top of the diverter plate, and the top of the first conical block is set as a plane, and eight first arc flow grooves are evenly provided on the surface of the first conical block, and the eight first matching holes correspond to the eight first arc flow grooves respectively, and the inner wall of the discharge pipe is provided with a first inclined surface, and the first inclined surface is close to the surface of the first conical block.

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

[0011] In the above technical solution, preferably, a fixed disk 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 disk.

[0012] In the above technical solution, preferably, the first arc-shaped flow groove and the second arc-shaped flow groove 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 cone shape, the design can meet the fluid state characteristics of the maximum negative pressure area of ​​the fluid vortex, further increasing the negative pressure strength;

[0015] Then, by making the inlet and outlet directions of the fluid 90 degrees, the fluid enters the mixing cavity from the tangential direction of the inlet, and the fluid rotates at high speed in the mixing cavity to generate negative pressure. Under the suction of the negative pressure, the fluid or gas enters the negative pressure cavity through the negative pressure inlet, and then enters the mixing cavity from the negative pressure cavity. After entering, the liquid and the fluid rotate and rub at high speed at the same time, and then are sprayed into the discharge pipe through the discharge port, and finally pass through the first cyclone mechanism and the second cyclone mechanism inside the discharge pipe, so that the fluid and the fluid or gas contact and mix with each other;

[0016] Finally, through the layered arrangement of the first cyclone mechanism and the second cyclone mechanism, the fluid flowing through the discharge pipe can produce multiple and different levels of cyclone effects, thereby enhancing the rotation intensity and mixing effect of the fluid, and enabling the fluid and the fluid or the gas to contact and mix with each other more fully. This design also makes the gas-liquid mixing more refined, and the first arc flow groove is in opposite directions to the second arc flow groove. When the fluid passes through the first arc flow groove and the second arc flow groove, it will perform different cyclone motions, which can further improve the uniformity and sufficiency of the fluid mixing. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 It is a schematic diagram of a top view or front view of a mixing cavity of the present invention;

[0019] Figure 3 It is a schematic diagram of the top view of the structure of the mixing inner cavity of the present invention;

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

[0021] Figure 5 It is a schematic structural diagram of the first cyclone mechanism of the present invention;

[0022] Figure 6 It is a schematic diagram of the structure of the second cyclone mechanism of the present invention.

[0023] In the figure: 1. mixer body; 2. liquid inlet joint; 3. negative pressure inlet; 4. mixing cavity; 5. connecting cover; 6. negative pressure through hole; 7. discharge port; 8. discharge pipe; 9. first fixed plate; 10. second fixed plate; 11. first swirl mechanism; 12. second swirl mechanism; 13. cone; 14. diverter plate; 15. first matching hole; 16. first conical block; 17. first arc flow channel; 18. first inclined surface; 19. fixed plate; 20. output hole; 21. second conical block; 22. second arc flow channel; 23. second inclined surface; 24. fixed column; 25. liquid inlet notch. DETAILED DESCRIPTION

[0024] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] like Figure 1-Figure 6 The negative pressure fluid mixer shown includes a mixer body 1, a mixing cavity 4 is arranged inside the mixer body 1, a liquid inlet joint 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 cavity 4, and the negative pressure through holes 6 are arranged in a cone shape. This design can meet the fluid state characteristics of the maximum negative pressure area of ​​the fluid vortex, further increase the negative pressure strength, increase the negative pressure strength, and the two negative pressure through holes 6 are respectively arranged at the center of the two mixing cavities 4, and this center is the point where the vortex negative pressure is the largest. A negative pressure inlet 3 is arranged below the mixer body 1, and the negative pressure inlet 3 is connected to the negative pressure through hole 6. A discharge port 7 is opened on the top of the mixer body 1, and a negative pressure inlet 3 is connected to the negative pressure through hole 6. There is a discharge pipe 8, the bottom of which is connected to the discharge port 7, and a first cyclone mechanism 11 and a second cyclone mechanism 12 are installed inside the discharge pipe 8. The design makes the fluid inlet direction and the outlet direction 90 degrees, and the fluid enters the mixing cavity 4 from the inlet tangential direction. The fluid rotates at high speed in the mixing cavity 4 to generate negative pressure. Under the suction of the negative pressure, the fluid or gas enters the negative pressure cavity through the negative pressure inlet 3, and then enters the mixing cavity 4 from the negative pressure cavity. After entering, the liquid and the fluid rotate and rub at high speed at the same time, and then are sprayed into the discharge pipe 8 through the discharge port 7. Finally, through the first cyclone mechanism 11 and the second cyclone mechanism 12 inside the discharge pipe 8, the fluid and the fluid or gas can be more fully contacted and mixed with each other.

[0027] The end of the mixing cavity 4 is arranged in an arc shape, and a liquid inlet notch 25 is arranged at the connection between the liquid inlet joint 2 and the mixing cavity 4. By arranging the end of the mixing cavity 4 in an arc shape, the fluid is input into the mixing cavity 4 through the liquid inlet notch 25, and the fluid enters the spherical cavity from the inlet tangential direction, and the fluid moves in the cavity in a rotating vortex manner, which enables the fluid to enter the mixing cavity 4 more smoothly, reduces the energy loss and resistance of the fluid caused by collision, impact, etc. when entering, reduces the pressure loss during the fluid transportation process, improves the efficiency of the fluid transmission, and the vortex motion can contact and mix more fully, making the mixing more uniform and efficient, which is beneficial 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, and 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, and the negative pressure inlet 3 is connected to the bottom of the negative pressure cavity. By opening a negative pressure cavity inside the connecting cover 5, and connecting the top of the negative pressure cavity to the two negative pressure through holes 6 and the bottom to the negative pressure inlet 3, it is possible to ensure that there is a stable and unobstructed negative pressure transmission channel between the negative pressure source and the inside of the mixer, so that the required negative pressure environment can be continuously and stably provided for the relevant operations in the mixer, thereby ensuring the stability and reliability of the operation of the entire system.

[0029] A first fixed plate 9 is installed at the bottom end of the discharge pipe 8, a first cyclone mechanism 11 is arranged above the first fixed plate 9, and a second cyclone mechanism 12 is arranged above the first cyclone mechanism 11. A second fixed plate 10 is installed at the top of the discharge pipe 8, and the second fixed plate 10 is arranged above the second cyclone mechanism 12. A plurality of through grooves are provided on the surfaces of the first fixed plate 9 and the second fixed plate 10. The first cyclone mechanism 11 and the second cyclone mechanism 12 are arranged in layers, so that the fluid flowing through the discharge pipe 8 can produce multiple and different levels of cyclone effects. The first cyclone mechanism 11 of the lower layer first performs an initial cyclone on the fluid to form a preliminary rotating flow state. Then the fluid rises to the second cyclone mechanism 12 and is subjected to the cyclone effect again, which further enhances the rotation strength and mixing effect of the fluid, and can more fully make the fluid contact and mix with the fluid or gas.

[0030] The first cyclone mechanism 11 includes a diverter plate 14, which is fixedly installed inside the discharge pipe 8. A cone 13 is fixedly installed at the bottom of the diverter plate 14, and the pointed end of the cone 13 is at the bottom. The pointed end of the cone 13 faces downward. When the fluid flows from the bottom to the first cyclone mechanism 11, the cone 13 can play a good diversion role, so that the fluid is evenly diffused to the surroundings, avoiding the fluid from being concentrated in the central area of ​​the discharge pipe 8, laying the foundation for subsequent swirl and mixing. The surface of the diverter plate 14 and the side of the cone 13 are evenly opened with eight first matching holes 15, and the top of the diverter plate 14 is fixedly installed with a first cone. Conical block 16, the top of the first conical block 16 is set as a plane, eight first arc flow grooves 17 are evenly opened on the surface of the first conical block 16, and the eight first matching holes 15 correspond to the eight first arc flow grooves 17 respectively. The inner wall of the discharge pipe 8 is provided with a first inclined surface 18, and the first inclined surface 18 is close to the surface of the first conical block 16. When the fluid enters from the first matching hole 15 and flows to the first arc flow groove 17, due to the special shape of the arc flow groove, the fluid will be guided to flow along a specific arc path, so that the fluid produces a rotational motion, which provides power for the fluid to form a vortex in the discharge pipe 8 and enhances the mixing effect between the fluids.

[0031] The second cyclone mechanism 12 includes a second conical block 21. A fixing column 24 is fixedly installed at the middle end of the bottom of the second fixed 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 arranged on the surface of the second conical block 21. A second inclined surface 23 is arranged inside the discharge pipe 8. The second inclined surface 23 is close to the surface of the second conical block 21. The eight second arc-shaped flow grooves 22 evenly arranged on the surface of the second conical block 21, the fluid coming up from below flows along a specific arc path, causing the fluid to produce a rotational motion, further enhancing the cyclone effect of the fluid in the discharge pipe 8, allowing the various components in the fluid to be more fully mixed and contacted with each other, thereby improving the uniformity and sufficiency of the mixing.

[0032] A fixed disk 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 opened in the middle of the fixed disk 19. The output hole 20 can centrally transmit the fluid swirled by the first swirling mechanism 11, and the fluid will be centrally transmitted to the second swirling mechanism 12.

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

[0034] Working principle: First, the fluid is input from the liquid inlet joint 2 to the mixing cavity 4 through a water pump. The fluid enters the mixing cavity 4 from the inlet tangential direction. The fluid rotates at high speed in the mixing cavity 4 to generate negative pressure. Under the suction of the negative pressure, the fluid or gas enters the negative pressure cavity through the negative pressure inlet 3, and then enters the mixing cavity 4 from the negative pressure cavity. After entering, the liquid and the fluid rotate and rub at high speed at the same time, and then are sprayed into the discharge pipe 8 through the discharge port 7. After the fluid is immersed in the discharge pipe 8, the fluid is first dispersed by the through groove on the surface of the first fixed plate 9, and then the cone 13 can divert the fluid to make the fluid evenly diffuse to the surroundings. When the fluid is from the first matching plate 9, the fluid is dispersed by the through groove on the surface of the first fixed plate 9, and then the cone 13 can divert the fluid to make the fluid diffuse evenly to the surroundings. When the hole 15 enters and flows to the first arc flow groove 17, due to the special shape of the arc flow groove, the fluid will be guided to flow along a specific arc path, thereby causing the fluid to produce a rotational motion. Then the output hole 20 can centrally transmit the fluid swirling in the first swirl mechanism 11, and the fluid will be centrally transmitted to the second arc flow groove 22 on the surface of the second conical block 21. The fluid flows along a specific arc path again, causing the fluid to produce a rotational motion, further enhancing the swirl 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 contact and mix the fluid with the fluid or gas.

[0035] The above shows and describes 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, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A negative pressure fluid mixer, comprising a mixer body (1), characterized in that: The mixer body (1) is provided with a mixing cavity (4) inside, a liquid inlet joint (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 cavity (4), and the negative pressure through holes (6) are arranged in a cone shape. A negative pressure inlet (3) is arranged below the mixer body (1), and 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), and a discharge pipe (8) is arranged above the mixer body (1), and the bottom of the discharge pipe (8) is connected to the discharge port (7), and a first cyclone mechanism (11) and a second cyclone mechanism (12) are installed inside the discharge pipe (8).

2. The negative pressure fluid mixer according to claim 1, characterized in that: The end of the mixing inner cavity (4) is arranged in an arc shape, and a liquid inlet notch (25) is arranged at the connection between the liquid inlet joint (2) and the mixing inner cavity (4).

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

4. The negative pressure fluid mixer according to claim 3, characterized in that: A first fixed plate (9) is installed at the bottom end of the discharge pipe (8), the first cyclone mechanism (11) is arranged above the first fixed plate (9), and the second cyclone mechanism (12) is arranged above the first cyclone mechanism (11). A second fixed plate (10) is installed at the top end of the discharge pipe (8), and the second fixed plate (10) is arranged above the second cyclone mechanism (12). The surfaces of the first fixed plate (9) and the second fixed plate (10) are both provided with a plurality of through grooves.

5. The negative pressure fluid mixer according to claim 4, characterized in that: The first cyclone mechanism (11) comprises a diverter plate (14), the diverter plate (14) is fixedly mounted inside the discharge pipe (8), a cone (13) is fixedly mounted at the bottom of the diverter plate (14), the pointed end of the cone (13) is located at the bottom, eight first matching holes (15) are evenly arranged on the surface of the diverter plate (14) and on the side of the cone (13), a first conical block (16) is fixedly mounted on the top of the diverter plate (14), the top of the first conical block (16) is arranged as a plane, eight first arc-shaped flow grooves (17) are evenly arranged on the surface of the first conical block (16), the eight first matching holes (15) respectively correspond to the eight first arc-shaped flow grooves (17), and a first inclined surface (18) is arranged on the inner wall of the discharge pipe (8), and the first inclined surface (18) is close to the surface of the first conical block (16).

6. The negative pressure fluid mixer according to claim 5, characterized in that: The second cyclone mechanism (12) comprises a second conical block (21), a fixing column (24) is fixedly installed at the middle end of the bottom of the second fixing plate (10), 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 arranged on the surface of the second conical block (21), and a second inclined surface (23) is arranged inside the discharge pipe (8), and the second inclined surface (23) is close to the surface of the second conical block (21).

7. The negative pressure fluid mixer according to claim 6, characterized in that: A fixed disk (19) is installed inside the discharge pipe (8) and between the first conical block (16) and the second conical block (21), and an output hole (20) is opened in the middle of the fixed disk (19).

8. The negative pressure fluid mixer according to claim 7, characterized in that: The first arc-shaped flow groove (17) and the second arc-shaped flow groove (22) are in opposite directions.

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