A high-efficiency homogenizing valve group, homogenizer and homogenizing method

Abstract

The present invention relates to the technical field of micro-nano homogenizing emulsification equipment, and discloses a high-efficiency homogenizing valve group, a homogenizer, and a homogenizing method. The high-efficiency homogenizing valve group includes: a valve body, provided with a homogenizing channel, the homogenizing channel is provided with a radially protruding spoiler ring; a homogenizing component, arranged in the homogenizing channel; the homogenizing component includes a first valve core and a second valve core, the second valve core is provided with a homogenizing groove, the first valve core cover is provided on the second valve core, and the end wall of the first valve core and the homogenizing groove form a homogenizing chamber; the first valve core is provided with a feed hole, the feed hole connects the homogenizing chamber and the inlet end of the homogenizing channel, the second valve core is provided with a discharge hole, the discharge hole connects the homogenizing chamber and the outlet end of the homogenizing channel; wherein the homogenizing groove includes a converging channel and a collision channel, the collision channel is connected to the converging channel, and the discharge hole is provided in the converging channel; the width of the collision channel is greater than the depth of the collision channel, and the depth of the collision channel is less than 1 mm. The homogenizing valve group of the present application can improve the dispersion and crushing effect of fibrous raw materials.

Description

Technical Field

[0001] The present invention relates to the technical field of micro-nano homogenizing emulsification equipment, and in particular to a high-efficiency homogenizing valve group, a homogenizer and a homogenizing method. Background Art

[0002] Homogenizers are primarily used in the biological, pharmaceutical, food, and chemical industries for cell disruption, beverage production, fine chemical processing, and the preparation of liposomes, fat emulsions, nanosuspensions, microemulsions, lipid microspheres, emulsions, dairy products, large-volume infusions, and dyes. Under the reciprocating motion of a plunger pump, the homogenizer draws fluid material into a high-pressure chamber and then pressurizes the material to a homogenizing valve assembly with a tiny gap. When the fluid passes through the tiny gap, its flow is obstructed, creating high pressure. This causes the various substances in the fluid to experience intense shear, impact, cavitation, and turbulence, resulting in ultra-fine and uniform dispersion of the fluid material after passing through the homogenizing valve assembly. However, current homogenizers still suffer from poor dispersion and crushing effects when used with fibrous materials such as multi-walled carbon nanotubes, single-walled carbon nanotubes, bio-based nanocellulose, cotton and linen fibers, viscose fibers, ceramic or glass inorganic fibers, and difficult-to-disperse materials such as graphene. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a high-efficiency homogenizing valve group that can improve the dispersion and crushing effect of fibrous raw materials.

[0004] The present invention also provides a homogenizer having the above-mentioned high-efficiency homogenizing valve group.

[0005] The high-efficiency homogenizing valve group according to the first embodiment of the present invention includes:

[0006] The valve body is provided with a homogenizing channel, wherein the homogenizing channel is provided with a radially protruding flow-turbine ring;

[0007] A homogenizing assembly is provided in the homogenizing channel; the homogenizing assembly includes a first valve core and a second valve core, the second valve core is provided with a homogenizing groove, the first valve core cover is provided on the second valve core, and the end wall of the first valve core and the homogenizing groove form a homogenizing cavity; the first valve core is provided with a feed hole, the feed hole communicating with the homogenizing cavity and the inlet end of the homogenizing channel, and the second valve core is provided with a discharge hole, the discharge hole communicating with the homogenizing cavity and the outlet end of the homogenizing channel;

[0008] Among them, the homogenizing trough includes a converging channel and a collision channel, the collision channel is connected to the converging channel, and the discharge hole is arranged in the converging channel; the width of the collision channel is greater than the depth of the collision channel, and the depth of the collision channel is less than 1 mm.

[0009] The high-efficiency homogenizing valve group according to the embodiment of the present invention has at least the following beneficial effects:

[0010] When the fluid solution flows forward through the homogenizing channel, a reverse reflux will be formed at the turbulence ring, and the reflux solution collides with the forward-flowing solution to form turbulence, thereby achieving initial shearing of the fluid solution; after the fluid solution enters the homogenizing cavity through the feed hole, the fluid solution collides at high speed in the collision channel, thereby achieving secondary high-speed shearing of the fluid solution, thereby improving the dispersion and crushing effect of the fibrous raw materials in the fluid solution; the depth of the collision channel is less than 1 mm, and the width of the collision channel is greater than the depth, which facilitates the high-speed collision of the fibrous raw materials in an expanded posture, further improving the dispersion and crushing effect of the fibrous raw materials.

[0011] According to some embodiments of the present invention, a width W of the collision channel and a depth D of the collision channel satisfy: W≥3D.

[0012] According to some embodiments of the present invention, there are multiple collision channels, and the multiple collision channels are arranged at intervals along the extension direction of the convergence channel; the extension direction of the convergence channel is perpendicular to the extension direction of the collision channel, and the multiple collision channels are all connected to the convergence channel.

[0013] According to some embodiments of the present invention, the homogenizing tank includes a collision area, the collision area is provided with a separator, and the separator separates the collision area into a plurality of collision channels;

[0014] The confluence channel is arranged in the middle of the collision area. The first valve core is provided with a plurality of feed holes. The plurality of feed holes are all connected to the collision area. The plurality of feed holes are symmetrically arranged about the confluence channel.

[0015] According to some embodiments of the present invention, the collision area includes a first edge and a second edge that are symmetrically arranged, and the first edge and the second edge are symmetrically arranged with respect to the confluence channel.

[0016] According to some embodiments of the present invention, the inner sidewall of the spoiler ring is a curved surface.

[0017] According to some embodiments of the present invention, a homogenizing module is further installed in the homogenizing channel, the homogenizing module includes a through hole penetrating the homogenizing module, the through hole includes a first flared section, a straight section, and a second flared section, the straight section connecting the first flared section and the second flared section;

[0018] Along the radial direction of the homogenizing module, the inner diameters of the first flared section and the second flared section gradually increase outward along the straight section, and the first flared section and the second flared section cooperate to form the spoiler ring.

[0019] According to some embodiments of the present invention, a plurality of the spoiler rings are arranged in parallel in the homogenizing channel along the material flow direction in the homogenizing channel, and the inner diameters of the plurality of the spoiler rings increase sequentially.

[0020] A homogenizer according to an embodiment of the second aspect of the present invention includes a separation device and the aforementioned homogenizing valve assembly. The separation device is configured to receive the fluid solution discharged from the high-efficiency homogenizing valve assembly and separate the homogenized raw material from the fluid solution. Because the homogenizer includes the aforementioned homogenizing valve assembly, it at least has all the beneficial effects of the homogenizing valve assembly.

[0021] The homogenizing method according to the third embodiment of the present invention is applicable to the above-mentioned homogenizer. The homogenizing method comprises the following steps:

[0022] Inputting a fluid solution into the high-efficiency homogenizing valve group to perform a homogenizing operation and circulating the solution for a set number of times;

[0023] The high-efficiency homogenizing valve group outputs the fluid solution to the separation device for separation operation;

[0024] The fluid solution is formed by mixing raw materials, liquid solvent and supercritical carbon dioxide solvent, and the raw materials and the supercritical carbon dioxide solvent account for 0.1% to 99.9% of the total volume of the fluid solution;

[0025] In terms of specific surface area ratio, in the fluid solution, the ratio of the specific surface area of ​​the supercritical carbon dioxide solvent to the specific surface area of ​​the raw material is 0.1 to 30;

[0026] In terms of volume ratio, in the fluid solution, the ratio of the volume of the supercritical carbon dioxide solvent to the volume of the raw material is 0.1 to 50.

[0027] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0029] Figure 1 This is a structural diagram of a homogenizing valve group according to an embodiment of the first aspect of the present invention;

[0030] Figure 2 for Figure 1 A cross-sectional view of the homogenizing component;

[0031] Figure 3 for Figure 2 A front view of the first valve core of the middle homogenizing assembly;

[0032] Figure 4 for Figure 2 A front view of the second valve core of the middle homogenizing assembly;

[0033] Figure 5 for Figure 1 A cross-sectional view of a first embodiment of the homogenizing module;

[0034] Figure 6 for Figure 1 A cross-sectional view of a second embodiment of the homogenizing module.

[0035] Figure Number:

[0036] Valve body 100, homogenizing channel 110, spoiler ring 111;

[0037] Homogenizing assembly 200, first valve core 210, feed hole 211, second valve core 220, discharge hole 221, homogenizing groove 222, collision channel 2221, confluence channel 2222, collision area 230, first edge 231, second edge 232, and separator 240;

[0038] Homogenizing module 300 , through hole 310 , first flared section 311 , straight section 312 , second flared section 313 . DETAILED DESCRIPTION

[0039] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0040] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientation or positional relationship indicated by up, down, etc., are based on the orientation or positional relationship shown in the accompanying 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 therefore cannot be understood as a limitation on the present invention.

[0041] In the description of the present invention, "a plurality" refers to more than two. The use of "first" or "second" is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of the indicated technical features, or implicitly indicating the order of the indicated technical features.

[0042] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0043] Reference Figures 1 to 6 The high-efficiency homogenizing valve group of the first embodiment of the present invention includes a valve body 100 and a homogenizing assembly 200. The valve body 100 is provided with a homogenizing channel 110, and the homogenizing channel 110 is provided with a radially protruding spoiler ring 111; the homogenizing assembly 200 is arranged in the homogenizing channel 110; the homogenizing assembly 200 includes a first valve core 210 and a second valve core 220, the second valve core 220 is provided with a homogenizing groove 222, the first valve core 210 is covered on the second valve core 220, and the end wall of the first valve core 210 A homogenizing cavity is formed with the homogenizing tank 222; the first valve core 210 is provided with a feed hole 211, which connects the homogenizing cavity and the inlet end of the homogenizing channel 110; the second valve core 220 is provided with a discharge hole 221, which connects the homogenizing cavity and the outlet end of the homogenizing channel 110; wherein, the homogenizing tank 222 includes a converging channel 2222 and a collision channel 2221, the collision channel 2221 is connected to the converging channel 2222, and the discharge hole 221 is arranged in the converging channel 2222. When the fluid solution flows forward through the homogenizing channel 110, a reverse reflux will be formed at the turbulent ring 111. The reflux solution collides with the forward flowing solution to form turbulence, thereby achieving initial shearing of the fluid solution. After the fluid solution enters the homogenizing chamber through the feed hole 211, the fluid solution collides at high speed in the collision channel 2221, thereby achieving secondary high-speed shearing of the fluid solution, thereby improving the dispersion and crushing effect of the fibrous raw materials in the fluid solution. The above-mentioned forward flow of the fluid solution through the homogenizing channel 110 refers to the flow of the fluid solution from the inlet end to the outlet end of the homogenizing channel 110, and the reverse reflux refers to Figure 1 shown.

[0044] Furthermore, the depth of the collision channel 2221 in this embodiment is preferably less than 1 mm, and the width of the collision channel 2221 is greater than the depth, so as to facilitate the high-speed collision of the fibrous raw material or the graphite raw material in an unfolded posture, thereby improving the dispersion and crushing effect of the raw material. The depth of the collision channel 2221 can be specifically set according to the length and diameter ratio of the raw material to be homogenized. For example, if the raw material to be homogenized is graphite powder, and graphene is obtained through the homogenizing valve group of this embodiment, the depth of the collision channel 2221 can be preferably set to a set multiple of the particle size of the graphite particles, for example, set to a depth of 3 to 10 times the particle size of the graphite particles. The width W of the collision channel 2221 and the depth D of the collision channel 2221 preferably satisfy: W≥3D, and the depth D of the collision channel 2221 refers to Figure 2 As shown, the width W of the collision channel 2221 is Figure 4 By setting the width W of the collision channel 2221 to be significantly greater than the depth D, the fibrous raw materials are less likely to stack in the depth direction of the collision channel 2221 during collision, and the fibrous raw materials are more easily spread out, so that the fibrous raw materials or graphite raw materials can more often achieve "tit-for-tat" collisions, thereby improving the dispersion and crushing effects of the fibrous raw materials and graphite raw materials.

[0045] Currently, most homogenizing equipment on the market uses a cylindrical collision channel 2221. In order to increase the crushing effect of the cylindrical collision channel 2221 on the fibrous raw materials and graphite raw materials and enable the fibrous raw materials and graphite raw materials to achieve a "tit-for-tat" collision, it is necessary to reduce the inner diameter of the collision channel 2221 as much as possible. However, the reduction in the inner diameter of the collision channel 2221 can easily lead to blockage of the collision channel 2221, affecting the crushing efficiency and crushing effect. In this embodiment, the flat collision channel 2221 is not easy to be blocked, and can achieve a good crushing effect on the fibrous raw materials and graphite raw materials, greatly improving the crushing efficiency.

[0046] Reference Figure 4 As shown, in the embodiment of the present invention, there are multiple collision channels 2221, and the multiple collision channels 2221 are spaced apart along the extension direction of the confluence channel 2222. The extension direction of the confluence channel 2222 is perpendicular to the extension direction of the collision channel 2221. The confluence channel 2222 passes through the multiple collision channels 2221, and the multiple collision channels 2221 are all connected to the confluence channel 2222. Specifically, the homogenizing tank 222 includes a collision area 230, and the collision area 230 is provided with a dividing bar 240. The dividing bar 240 is used to separate the collision area 230 into multiple collision channels 2221. The multiple collision channels 2221 can improve the collision efficiency of the raw materials, thereby reducing the number of times the raw materials circulate in the homogenizing component 200. There are multiple discharge holes 221 to facilitate the rapid discharge of the fluid solution. The specific positions of the multiple discharge holes 221 can be set according to actual conditions. For example, refer to Figure 4 As shown, there are two discharge holes 221 and they are respectively arranged at the two ends of the converging channel 2222, so that the raw materials can flow out after sufficient collision.

[0047] Furthermore, the first valve core 210 is provided with a plurality of feed holes 211, and the plurality of feed holes 211 are all connected to the collision area 230, and the plurality of feed holes 211 are symmetrically arranged about the confluence channel 2222. For example, the feed holes 211 can refer to Figure 3 As shown, there are two feed holes 211, which are respectively connected to the collision area 230, and are preferably as far away from the collision channel 2221 as possible, so as to facilitate the uniform distribution of the fluid solution into multiple collision channels 2221; multiple feed holes 211 are symmetrically arranged about the confluence channel 2222, so as to facilitate the uniform distribution of the fluid solution into the collision channels 2221 on both sides of the confluence channel 2222, thereby improving the dispersion and crushing effect of the fluid solution.

[0048] In an embodiment of the present invention, the collision region 230 includes a first edge 231 and a second edge 232 symmetrically arranged. The first edge 231 and the second edge 232 are symmetrically arranged about the confluence channel 2222. The confluence channel 2222 is arranged in the middle of the collision region 230, and both ends of the confluence channel 2222 extend out of the collision region 230. Figure 4 As shown, after the homogenizing valve group of this embodiment is installed, the two feed holes 211 of the first valve core 210 correspond to the middle positions of the first edge 231 and the second edge 232 respectively, and preferably the first edge 231 and the second edge 232 are both arc-shaped edges, and both ends of the first edge 231 and the second edge 232 extend toward the direction close to the confluence channel 2222, thereby facilitating the fluid solution to flow quickly to the collision channel 2221 close to the two ends of the confluence channel 2222, and enabling the amount of fluid solution in multiple collision channels 2221 to be evenly distributed.

[0049] Reference Figure 1 As shown, a plurality of spoiler rings 111 are provided in an embodiment of the present invention, and the plurality of spoiler rings 111 are spaced apart along the material flow direction of the homogenizing channel 110. The plurality of spoiler rings 111 can enhance the flow disturbance effect on the fluid solution in the homogenizing channel 110. The cross-sectional shape of the spoiler ring 111 can be set according to actual conditions, for example, it can be set to an arc or a rectangle, that is, the inner side wall of the spoiler ring 111 can be set to a curved surface or a plane, preferably, the inner side wall of the spoiler ring 111 is set to a curved surface to reduce the loss of dynamic potential energy caused by turbulence, reduce the damage caused by turbulence to the inner side wall of the spoiler ring 111, and at the same time enhance the backflow flow and speed caused by the spoiler ring 111.

[0050] Furthermore, the inner diameters of the multiple spoiler rings 111 of this embodiment can be set to be equal or unequal. For example, the inner diameters of the multiple spoiler rings 111 can be set to increase successively along the material flow direction of the homogenizing channel 110, or the inner diameters of the multiple spoiler rings 111 can be set to decrease successively, or the inner diameter of the spoiler ring 111 in the middle can be larger than the inner diameters of the spoiler rings 111 at the two ends, or the inner diameter of the spoiler ring 111 in the middle can be smaller than the inner diameters of the spoiler rings 111 at the two ends, etc. Experiments have shown that in order to further enhance the turbulent effect caused by the spoiler rings 111, it is preferred that the inner diameters of the multiple spoiler rings 111 increase successively along the material flow direction of the homogenizing channel 110.

[0051] It is conceivable that along the material flow direction of the homogenizing channel 110, the spoiler ring 111 may be as follows: Figure 1 As shown, it is arranged at the front end or rear end of the homogenizing component 200, that is, the fluid solution can first flow through the spoiler ring 111 and then enter the homogenizing component 200, or it can first flow through the homogenizing component 200 and then enter the spoiler ring 111, which is not limited in this embodiment.

[0052] In the embodiment of the present invention, the spoiler ring 111 can be arranged on the inner wall of the homogenizing channel 110, or can be formed by a detachable homogenizing module 300, so as to facilitate changing the inner diameter of the spoiler ring 111 according to different raw materials to be crushed. Figure 5 、 Figure 6 As shown, the homogenizing module 300 includes a through hole 310 that passes through the homogenizing module 300, and the through hole 310 includes a first flared section 311, a straight section 312, and a second flared section 313, and the straight section 312 connects the first flared section 311 and the second flared section 313; along the radial direction of the homogenizing module 300, the inner diameters of the first flared section 311 and the second flared section 313 gradually increase outward along the straight section 312, and the first flared section 311 and the second flared section 313 cooperate to form a spoiler ring 111. By changing the shape and size of the first flared section 311 and the second flared section 313, different types of spoiler rings 111 can be formed. For example, the cross-sections of the first flared section 311 and the second flared section 313 can be set to Figure 5 The arc shown or Figure 6 The straight line shown, Figure 5 The inner side walls of the first flared section 311 and the second flared section 313 shown in the figure may also be concave or convex, which is not limited in this embodiment.

[0053] Furthermore, the inner diameter of the straight section 312 of the through hole 310 can be set to be equal to or different from the inner diameter of the homogenizing channel 110. For example, the inner diameter of the straight section 312 can be set to be greater than, less than, or equal to the inner diameter of the homogenizing channel 110, which is not limited in this embodiment.

[0054] In an embodiment of the present invention, the number of homogenizing modules 300 can be set according to actual conditions, and the installation position of the homogenizing module 300 can also be set according to actual conditions. For example, along the material flow direction of the homogenizing channel 110, multiple homogenizing modules 300 can be arranged in parallel at the front end of the homogenizing component 200, or multiple homogenizing modules 300 can be arranged in parallel at the rear end of the homogenizing component 200, or homogenizing modules 300 can be arranged at both the front and rear ends of the homogenizing component 200.

[0055] The homogenizer of the second embodiment of the present invention includes a separation device and the above-mentioned homogenizing valve group. The separation device is used to receive the fluid solution discharged by the high-efficiency homogenizing valve group and separate the homogenized raw materials in the fluid solution. The separation device includes a separation extraction tank. The separation extraction tank is at normal pressure or low pressure. The fluid solution after high-efficiency homogenization will become a micro-nano mist state after entering the separation extraction tank. The supercritical carbon dioxide liquid will become a gaseous state after returning to normal pressure or low pressure. The carbon dioxide gas enters the recovery, compression and recycling device after filtration, and the remaining materials are recycled through classification and become finished products. Since the homogenizer includes the above-mentioned homogenizing valve group, it has at least all the beneficial effects of the homogenizing valve group, which will not be elaborated here.

[0056] The homogenizing method of the third embodiment of the present invention is applicable to the above-mentioned homogenizer. The homogenizing method comprises the following steps:

[0057] Input fluid solution into the high-efficiency homogenizing valve group for homogenization operation and cycle the solution for a set number of times;

[0058] The high-efficiency homogenizing valve group outputs the fluid solution to the separation device for separation and extraction operations;

[0059] The fluid solution is a mixture of raw materials, a liquid solvent, a dispersant, and supercritical carbon dioxide. For example, for graphene production, the raw material can be graphite powder. The liquid solvent can be one or more of an inorganic solvent such as water, or an organic solvent such as alcohols or toluene. It can also include materials to prevent the raw materials from reaggregating after dispersion, such as polyvinyl pyrrolidone, carboxymethyl cellulose, polyvinylidene fluoride, or polystyrene butadiene. The appropriate liquid solvent can be selected based on the raw materials. It is preferred that the particle size of the liquid solvent be close to that of the raw materials to facilitate impact with the raw materials, resulting in better intercalation, dispersion, and fragmentation. At present, for the dispersion and crushing of difficult-to-disperse raw materials such as fibrous raw materials and graphene, usually only supercritical carbon dioxide solvent is used to mix with the raw materials. For example, in a patent application for a method for preparing graphene by supercritical fluid steam explosion with application number CN201510994548.7, only supercritical carbon dioxide and graphite powder are used as a fluid solution. This application adds a liquid solvent to the fluid solution and calculates based on the specific surface area and volume ratio. Under the condition of meeting the amount required for good dispersion of the raw materials, the amount of supercritical carbon dioxide solvent added can be reduced, thereby reducing the preparation cost, reducing the investment in the recovery system, and improving the separation and extraction efficiency of the raw materials; the liquid solvent is difficult to compress, and the use of a liquid solvent with a particle size close to that of the raw materials can significantly improve the dispersion and crushing effect of the raw materials. In the fluid solution, the raw materials and the supercritical carbon dioxide solvent preferably account for 0.1% to 99.9% of the total volume of the fluid solution; if the ratio is based on specific surface area, in the fluid solution, the ratio of the specific surface area of ​​the supercritical carbon dioxide solvent to the specific surface area of ​​the raw materials is preferably 0.1 to 30; if the ratio is based on volume ratio, in the fluid solution, the ratio of the volume of the supercritical carbon dioxide solvent to the volume of the raw materials is preferably 0.1 to 50.

[0060] Furthermore, by adding a liquid solvent to the fluid solution, the use of supercritical carbon dioxide solvent can be reduced. The supercritical carbon dioxide solvent will be converted into a gaseous state in the separation and extraction tank to facilitate the separation of raw materials. Supercritical carbon dioxide will expand greatly when converted into a gaseous state, so high structural strength requirements are placed on the separation device, and a larger container is required to store the gaseous carbon dioxide, resulting in higher manufacturing and maintenance costs of the equipment. This embodiment uses a scientific formula to minimize the use of supercritical carbon dioxide, which can appropriately reduce the structural strength of the separation device and reduce the volume of the container for storing gaseous carbon dioxide, thereby reducing the manufacturing and maintenance costs of the equipment.

[0061] In the description of this specification, the reference terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" mean that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0062] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the scope of the present invention.

Claims

1. A high-efficiency homogenizing valve group, characterized in that: include: The valve body is provided with a homogenizing channel, wherein the homogenizing channel is provided with a radially protruding flow-turbine ring; A homogenizing assembly is provided in the homogenizing channel; the homogenizing assembly includes a first valve core and a second valve core, the second valve core is provided with a homogenizing groove, the first valve core cover is provided on the second valve core, and the end wall of the first valve core and the homogenizing groove form a homogenizing cavity; the first valve core is provided with a feed hole, the feed hole communicating with the homogenizing cavity and the inlet end of the homogenizing channel, and the second valve core is provided with a discharge hole, the discharge hole communicating with the homogenizing cavity and the outlet end of the homogenizing channel; The homogenizing tank includes a converging channel and a collision channel, the collision channel is connected to the converging channel, and the discharge hole is provided in the converging channel; the width of the collision channel is greater than the depth of the collision channel, and the depth of the collision channel is less than 1 mm; There are multiple collision channels, and the multiple collision channels are arranged at intervals along the extension direction of the confluence channel; the extension direction of the confluence channel is perpendicular to the extension direction of the collision channel, and the multiple collision channels are all connected to the confluence channel.

2. The high-efficiency homogenizing valve group according to claim 1 is characterized in that: The width W of the collision channel and the depth D of the collision channel satisfy: W≥3D.

3. The high-efficiency homogenizing valve group according to claim 1, characterized in that: The homogenizing tank includes a collision area, the collision area is provided with a dividing bar, and the dividing bar divides the collision area into a plurality of collision channels; The confluence channel is arranged in the middle of the collision area. The first valve core is provided with a plurality of feed holes. The plurality of feed holes are all connected to the collision area. The plurality of feed holes are symmetrically arranged about the confluence channel.

4. The high-efficiency homogenizing valve group according to claim 3 is characterized in that: The collision area includes a first edge and a second edge that are symmetrically arranged, and the first edge and the second edge are symmetrically arranged with respect to the confluence channel.

5. The high-efficiency homogenizing valve group according to claim 1 is characterized in that: The inner side wall of the spoiler ring is a curved surface.

6. The high-efficiency homogenizing valve group according to claim 1, characterized in that: A homogenizing module is further installed in the homogenizing channel, the homogenizing module includes a through hole penetrating the homogenizing module, the through hole includes a first flared section, a straight section, and a second flared section, the straight section connecting the first flared section and the second flared section; Along the radial direction of the homogenizing module, the inner diameters of the first flared section and the second flared section gradually increase outward along the straight section, and the first flared section and the second flared section cooperate to form the spoiler ring.

7. The high-efficiency homogenizing valve group according to claim 1, characterized in that: Along the material flow direction in the homogenizing channel, a plurality of the spoiler rings are arranged in parallel in the homogenizing channel, and the inner diameters of the plurality of the spoiler rings increase sequentially.

8. A homogenizer, characterized in that: It comprises a separation device and the high-efficiency homogenizing valve group according to any one of claims 1 to 7, wherein the separation device is used to receive the fluid solution discharged by the high-efficiency homogenizing valve group and separate the homogeneous raw materials in the fluid solution.

9. A homogenizing method, applicable to the homogenizer according to claim 8, characterized in that: The following steps are involved: Inputting a fluid solution into the high-efficiency homogenizing valve group to perform a homogenizing operation and circulating the solution for a set number of times; The high-efficiency homogenizing valve group outputs the fluid solution to the separation device for separation and extraction operations; The fluid solution is formed by mixing raw materials, liquid solvent and supercritical carbon dioxide solvent, and the raw materials and the supercritical carbon dioxide solvent account for 0.1% to 99.9% of the total volume of the fluid solution; In terms of specific surface area ratio, in the fluid solution, the ratio of the specific surface area of ​​the supercritical carbon dioxide solvent to the specific surface area of ​​the raw material is 0.1 to 30; Alternatively, in terms of volume ratio, in the fluid solution, the ratio of the volume of the supercritical carbon dioxide solvent to the volume of the raw material is 0.1 to 50.

Images