CN217016193U - High shear machine with cavitation effect - Google Patents
High shear machine with cavitation effect Download PDFInfo
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- CN217016193U CN217016193U CN202220834814.5U CN202220834814U CN217016193U CN 217016193 U CN217016193 U CN 217016193U CN 202220834814 U CN202220834814 U CN 202220834814U CN 217016193 U CN217016193 U CN 217016193U
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Abstract
A high shear machine with cavitation effect relates to a high shear machine. The high-shear machine aims to solve the technical problem that the existing high-shear machine has poor homogenization effect on solid-liquid fluid with particle size of below 50 micrometers. The high shear machine of the utility model is composed of a front disc, an impeller, an intermediate ring, a rear disc and a motor; the front disc is a disc structure with a cylindrical cavity in the middle and is provided with shearing teeth, the shearing teeth are arranged on two sides of the impeller, and the middle of the impeller is provided with a flow guide hole; the rear disc is a disc structure with a cylindrical cavity and is provided with shearing teeth, the middle ring is clamped between the front disc and the rear disc, and the front disc, the middle ring and the rear disc are connected with the motor shell into a whole; the transmission shaft of the motor is fixedly connected with the impeller into a whole. A plurality of rectangular tubular runners are formed in front and rear cavities of the impeller, when fluid moves at a high speed in the rectangular tubular runners, a cavitation effect is generated, and the emulsification effect is improved through cavitation and shearing, so that the impeller can be used in biological and chemical fields such as dairy products, beverages, pharmacy, coal water slurry, coatings and the like.
Description
Technical Field
The utility model relates to a high shear machine.
Background
The high-shear machine is widely applied to the fields of fluid mixing, chemical catalysis and the like, and the existing high-shear machine utilizes the shearing, cavitation and mechanical impact effects generated when a rotor and a stator move relatively at a high speed to achieve the effects of crushing and emulsifying. But the shearing effect generated at the shearing teeth is the main effect, and the cavitation effect is weaker. When the high-shear machine is used in the field of solid-liquid fluid homogeneous mixing, large particles can be crushed to about 100 microns by using the shearing teeth to crush the large particles, but when the high-shear machine is used for the solid-liquid fluid homogeneous mixing of which the particle size is less than 50 microns, the solid particles are not crushed obviously, and the homogenization effect is poor.
SUMMERY OF THE UTILITY MODEL
The utility model provides a high shear with cavitation effect, which aims to solve the technical problem that the existing high shear has poor homogenization effect on solid-liquid fluid with particle size of less than 50 micrometers.
The high shear with cavitation effect of the utility model is made up of front disc 1, impeller 2, intermediate ring 3, back disc 4, electric motor 5;
wherein the front disc 1 is a disc structure with a cylindrical cavity in the middle, a liquid inlet 1-1 is arranged at one end of the cylindrical cavity, and a raised square first shearing tooth 1-2 is arranged at the outer circumferential area of the disc; the first shearing teeth 1-2 are concentric with the disc and are arranged circumferentially;
the impeller 2 is of a plane disc structure, a raised square second shearing tooth 2-1 is arranged in the outer circumferential area of the left side surface of the disc, a raised square third shearing tooth 2-2 is arranged in the outer circumferential area of the right side surface of the disc, and the second shearing tooth 2-1 and the third shearing tooth 2-2 are concentric with the disc and are arranged in a circumferential manner; a flow guide hole 2-3 is arranged in the middle area surrounded by the shearing tooth area, and a mounting hole 2-4 is arranged at the center of the disc;
the rear disc 4 is a disc structure with a cylindrical cavity, and a raised square fourth shearing tooth 4-1 is arranged in the outer circumferential area of the disc; the fourth shearing teeth 4-1 are concentric with the disk and are arranged circumferentially; a through hole 4-2 is formed in the axis of the cylindrical cavity;
a liquid outlet 3-1 is arranged on the middle ring 3;
a transmission shaft 5-2 of the motor 5 is fixedly connected with the impeller 2 into a whole through a through hole 4-2 of the rear disc 4;
the middle ring 3 is clamped between the front disk 1 and the rear disk 4, and the front disk 1, the middle ring 3 and the rear disk 4 are fixedly connected with a shell 5-1 of a motor 5 into a whole; the first shearing teeth 1-2 of the front disc 1 are matched with the second shearing teeth 2-1 of the impeller 2, and the gap between the first shearing teeth 1-2 and the second shearing teeth 2-1 in the radial direction is 0.1-5 mm; the third shearing tooth 2-2 of the impeller 2 is matched with the fourth shearing tooth 4-1 of the rear disc 4, and the radial gap between the third shearing tooth 2-2 and the fourth shearing tooth 4-1 is 0.1 mm-5 mm.
Furthermore, the number of the flow guide holes 2-3 of the impeller 2 is 3-6, and the flow guide holes are uniformly distributed by taking the axis of the impeller 2 as the center.
Furthermore, the axes of the guide holes 2-3 of the impeller 2 and the axis of the impeller form an angle of 60 degrees, and the axes of the guide holes 2-3 of the impeller 2 and the disc surface of the impeller form an angle of 30 degrees.
The cavity in front of the front disc 1 and the impeller 2 is a front cavity, the cavity between the rear side of the impeller 2 and the rear disc 4 is a rear cavity, and the slurry entering the front cavity is quickly guided to the rear cavity by the guide holes, so that the fluid guide effect is achieved.
Further, the second cutting tooth 2-1 of the impeller 2 has a smaller tooth length than the first cutting tooth 1-2 of the front disc 1. The tooth length of the third cutting tooth 2-2 on the impeller 2 is smaller than the tooth length of the fourth cutting tooth 4-1 on the back plate 4. The arrangement is beneficial to increasing the grinding path and the grinding time of the particles in the slurry from the inlet to the outlet, and is beneficial to improving the emulsification efficiency.
Furthermore, the number of turns of the first shearing teeth 1-2 is 3-5 turns;
furthermore, 2-1 circles of second shearing teeth of the impeller 2 are 3-5 circles;
furthermore, the number of turns of the third shearing tooth 2-2 of the impeller 2 is 3-5;
furthermore, the number of turns of the fourth shearing tooth 4-1 of the rear disc 4 is 3-5;
the more the number of turns of the shearing teeth is, the better the cavitation shearing effect is, and the emulsification effect is favorably improved.
The working process of the high shear machine with the cavitation effect comprises the following steps: the mixed fluid to be treated flows into a front cavity between the front disc 1 and the impeller 2 through a liquid inlet 1-1, under the centrifugal action generated by the high-speed rotation of the impeller 2 driven by the motor 5, part of the mixed fluid is guided into a rear cavity between the rear side of the impeller 2 and the rear disc 4 through the guide holes 2-3 on the impeller 2, and under the centrifugal action, the mixed fluid flows outwards in a gap formed by square shearing teeth of the front disc 1, the impeller 2 and the rear disc 4 and flows out through a liquid outlet 3-1 on the intermediate ring 3.
The working principle of the high shear machine with the cavitation effect is as follows: in the high shear machine, a plurality of square annular pipeline cavities are formed among the front disk 1, the impeller 2 and the rear disk 4, when the linear velocity of a square dentate structure of the impeller bulge reaches more than 27m/s under the high-speed rotation of the impeller, when each bulge passes through the square annular pipeline cavity, the rear end face of the square dentate structure on the impeller generates a hydrodynamic cavitation phenomenon, namely a gas area, and a hydrodynamic cavitation effect is generated at a gas-liquid interface to generate local high-temperature and high-pressure shock waves and high-speed water jet, wherein the temperature of a micro-point area can reach more than 3000K, the pressure of the micro-point area can reach more than 100MPa, and the speed of the micro-point water jet can reach more than 100 m/s. When the mixed fluid flows through gaps formed by the impeller 2, the front disc 1 and the rear disc 4, a plurality of rectangular tubular flow channels are formed among the disc surface of the impeller 2, the disc surface of the front disc 1, the disc surface of the rear disc 2, the first shearing teeth 1-2 and the fourth shearing teeth 4-1, the second shearing teeth 2-1 and the third shearing teeth 2-2 on the impeller move in the rectangular tubular flow channels at a high speed, a cavitation area is formed at the rear end of the shearing teeth on the impeller, and the mixed fluid is subjected to a series of changes such as collision, crushing, chemical reaction and the like under the action of high-temperature, high-pressure shock waves, high-speed water jet and shearing effects, so that the functions of homogenizing, emulsifying and the like of the mixed fluid are realized.
The high shear machine with cavitation effect of the present invention can be used for mixing, homogenizing and emulsifying various liquids, and can also be used for mixing, homogenizing and emulsifying slurry containing solid particles. Such as sterilization of the liquid, rapid homogenization, emulsification, formation of a stable mixed fluid. Due to the existence of the hydrodynamic cavitation effect, the performance of the high-viscosity fluid is better than the homogeneous emulsification effect achieved by the existing high shearing machine or stirrer, and the formed mixed fluid is more stable, has lower viscosity and has better fluidity.
The high shear with cavitation effect of the utility model, through the unique structural design, can produce the cavitation effect in the space between impeller and front and back plate, increase the cavitation effect area, combine cavitation and high shear action together, improve the emulsification effect, when using in the liquid phase homogeneous mixing that the particle size is under 50 microns, the solid particle is further broken to about 5 microns, the homogeneous mixing effect is greatly improved, has improved the stability of the mixed fluid too, it is difficult to deposit more.
The high shear machine with cavitation effect of the utility model can be used in biological and chemical fields of dairy products, beverages, pharmacy, coal water slurry, coatings and the like.
Drawings
FIG. 1 is a schematic diagram of a high shear machine with cavitation in accordance with the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
fig. 3 is a schematic perspective view of the impeller 2;
fig. 4 is a schematic perspective view of the rear plate 4;
fig. 5 is a schematic perspective view of the front plate 1;
fig. 6 is a perspective view of the intermediate ring 3.
Detailed Description
The following examples are used to demonstrate the beneficial effects of the present invention.
Example 1: the high shear machine with cavitation effect of this embodiment is made up of front disc 1, impeller 2, intermediate ring 3, back disc 4, electric motor 5;
wherein the front disc 1 is a disc structure with a cylindrical cavity in the middle, a liquid inlet 1-1 is arranged at one end of the cylindrical cavity, and 3 circles of raised square first shearing teeth 1-2 are arranged in the outer circumferential area of the disc; the first shearing teeth 1-2 are concentric with the disc and are arranged circumferentially;
the impeller 2 is of a plane disc structure, 3 circles of raised square second shearing teeth 2-1 are arranged in the outer circumferential area of the left side surface of the disc, 3 circles of raised square third shearing teeth 2-2 are arranged in the outer circumferential area of the right side surface of the disc, and the second shearing teeth 2-1 and the third shearing teeth 2-2 are concentric with the disc and are arranged circumferentially; 4 flow guide holes 2-3 are uniformly distributed in the middle area surrounded by the shearing tooth area by taking the axis of the impeller 2 as the center, the axis of each flow guide hole 2-3 and the axis of the impeller form an angle of 60 degrees, the axis of each flow guide hole 2-3 forms an angle of 60 degrees with the axis of the impeller, and the axis of each flow guide hole 2-3 of the impeller 2 and the disc surface of the impeller form an angle of 30 degrees; a mounting hole 2-4 is arranged at the central position of the disc;
the rear disc 4 is a disc structure with a cylindrical cavity, and 3 circles of raised square fourth shearing teeth 4-1 are arranged in the outer circumferential area of the disc; the fourth shearing teeth 4-1 are concentric with the disc and are arranged circumferentially; a through hole 4-2 is formed in the axis of the cylindrical cavity;
a liquid outlet 3-1 is arranged on the middle ring 3;
a transmission shaft 5-2 of the motor 5 is fixedly connected with the impeller 2 into a whole through a through hole 4-2 of the rear disc 4;
the middle ring 3 is clamped between the front disk 1 and the rear disk 4, and the front disk 1, the middle ring 3 and the rear disk 4 are fixedly connected with a shell 5-1 of the motor 5 into a whole; the first shearing teeth 1-2 of the front disc 1 are matched with the second shearing teeth 2-1 of the impeller 2, and the gap between the first shearing teeth 1-2 and the second shearing teeth 2-1 in the radial direction is 0.8 mm; the third cutting tooth 2-2 of the impeller 2 is matched with the fourth cutting tooth 4-1 of the back disc 4, and the radial gap between the third cutting tooth 2-2 and the fourth cutting tooth 4-1 is 0.8 mm. The length of the second cutting tooth 2-1 on the impeller 2 is less than that of the first cutting tooth 1-2 on the front disc 1; the tooth length of the third cutting tooth 2-2 on the impeller 2 is smaller than the tooth length of the fourth cutting tooth 4-1 on the back plate 4.
The high shear machine with cavitation effect of the embodiment 1 is utilized to process the beverage, homogeneous emulsification is carried out through shearing, meanwhile, the temperature of the fluid can be increased under the cavitation effect, the sterilization effect can be realized under the combined action of the temperature and the cavitation effect, and when the temperature of the fluid is increased to 60 ℃, the killing effect of escherichia coli in the fluid can reach more than 99%. It can also be used for treating liquid-liquid fluid such as dairy products, liquid homogeneous mixing in chemical industry, etc.
The high shear with cavitation effect in the embodiment 1 is utilized to treat the coal water slurry, the particle size of solid particles in the coal water slurry is about 50 microns, the coal water slurry is homogenized and emulsified through shearing, meanwhile, under the cavitation effect, fluid particles can be further crushed, the particle size of the solid particles in the treated coal water slurry is crushed to about 5 microns, meanwhile, due to the action of the cavitation effect, the surface of the solid particles and the chemical properties of the fluid can be changed, the homogenizing and mixing effect is greatly improved, and the stability of mixed fluid is improved. It can also be used for treating solid-liquid fluid in pharmaceutical and coating fields.
Claims (8)
1. A high shear with cavitation effect is characterized in that the high shear consists of a front disc (1), an impeller (2), a middle ring (3), a rear disc (4) and a motor (5);
wherein the front disc (1) is a disc structure with a cylindrical cavity in the middle, a liquid inlet (1-1) is arranged at one end of the cylindrical cavity, and a raised square first shearing tooth (1-2) is arranged at the outer circumferential area of the disc; the first shearing teeth (1-2) are concentric with the disc and are arranged circumferentially;
the impeller (2) is of a plane disc structure, a raised square second shearing tooth (2-1) is arranged in the outer circumferential area of the left side surface of the disc, a raised square third shearing tooth (2-2) is arranged in the outer circumferential area of the right side surface of the disc, and the second shearing tooth (2-1) and the third shearing tooth (2-2) are concentric with the disc and are arranged circumferentially; a flow guide hole (2-3) is arranged in the middle area surrounded by the shearing tooth area, and a mounting hole (2-4) is arranged at the central position of the disc;
the rear disc (4) is of a disc structure with a cylindrical cavity, and a raised square fourth shearing tooth (4-1) is arranged in the outer circumferential area of the disc; the fourth shearing teeth (4-1) are concentric with the disc and are arranged circumferentially; a through hole (4-2) is arranged at the axis position of the cylindrical cavity;
a liquid outlet (3-1) is arranged on the middle ring (3);
a transmission shaft 5-2 of the motor (5) is fixedly connected with the impeller (2) into a whole through a through hole (4-2) of the rear disc (4);
the middle ring (3) is clamped between the front disc (1) and the rear disc (4), and the front disc (1), the middle ring (3) and the rear disc (4) are fixedly connected with a shell 5-1 of the motor (5) into a whole; a first shearing tooth (1-2) of the front disc (1) is matched with a second shearing tooth (2-1) of the impeller (2), and the gap between the first shearing tooth (1-2) and the second shearing tooth (2-1) in the radial direction is 0.1-5 mm; the third shearing tooth (2-2) of the impeller (2) is matched with the fourth shearing tooth (4-1) of the rear disc (4), and the clearance between the third shearing tooth (2-2) and the fourth shearing tooth (4-1) in the radial direction is 0.1-5 mm.
2. The high shear machine with cavitation effect as claimed in claim 1, characterized in that the number of the flow guiding holes (2-3) of the impeller (2) is 3-6 and is uniformly distributed with the axis of the impeller (2) as the center.
3. The high shear machine with cavitation effect according to claim 1 or 2, characterized in that the axes of the guide holes (2-3) of the impeller (2) form an angle of 60 ° with the axis of the impeller and the axes of the guide holes (2-3) of the impeller (2) form an angle of 30 ° with the disk plane of the impeller.
4. A high shear machine with cavitation effect as claimed in claim 1 or 2, characterized in that the length of the teeth of the second cutting tooth (2-1) on the impeller (2) is smaller than the length of the first cutting tooth (1-2) of the front disc (1), and the length of the teeth of the third cutting tooth (2-2) on the impeller (2) is smaller than the length of the teeth of the fourth cutting tooth (4-1) of the rear disc (4).
5. The high shear machine with cavitation effect as claimed in claim 1 or 2, characterized in that the number of turns of the first cutting teeth (1-2) is 3-5.
6. The high shear machine with cavitation effect as claimed in claim 1 or 2, characterized in that the number of turns of the second cutting teeth (2-1) of the impeller (2) is 3-5.
7. A high shear machine with cavitation effect as claimed in claim 1 or 2, characterized in that the number of turns of the third cutting tooth (2-2) of the impeller (2) is 3-5 turns.
8. A high shear machine with cavitation effect as claimed in claim 1 or 2, characterized in that the number of turns of the fourth cutting tooth (4-1) of the back disc (4) is 3-5 turns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220834814.5U CN217016193U (en) | 2022-04-12 | 2022-04-12 | High shear machine with cavitation effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220834814.5U CN217016193U (en) | 2022-04-12 | 2022-04-12 | High shear machine with cavitation effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217016193U true CN217016193U (en) | 2022-07-22 |
Family
ID=82417469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220834814.5U Active CN217016193U (en) | 2022-04-12 | 2022-04-12 | High shear machine with cavitation effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217016193U (en) |
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2022
- 2022-04-12 CN CN202220834814.5U patent/CN217016193U/en active Active
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