Microfluidic valve and high pressure homogenizer

Abstract

The utility model relates to micro fluidic valve technical field, concretely relates to a micro fluidic valve and high pressure homogenizer. The utility model provides a micro fluidic valve, including valve body, the valve body is detachable valve body, the valve body is equipped with inlet, accommodating cavity and outlet in proper order, is equipped with the compression structure in the accommodating cavity. The utility model discloses that the first flow channel and the first annular groove are set up in the interactive cavity, so that the material at the inlet can enter the first annular groove through the first flow channel, because one end of the microchannel can extend to the outer wall surface of the first impact block, and then the first through hole on the second impact block is not offset from its own axis, and the microchannel on the first impact block end surface is set up to reach the specified length, so that the axis of the first through hole can coincide with the axis of the second impact block, and the installation precision is reduced.

Description

Technical Field

[0001] This utility model relates to the field of microjet valve technology, specifically to a microjet valve and a high-pressure homogenizer. Background Technology

[0002] Microjet valves are key components used in equipment such as high-pressure homogenizers, playing an important role in material handling.

[0003] Currently, common microjet valves on the market include a valve body and a diamond structure fixed inside the valve body. The diamond structure includes a diamond nozzle and a diamond inner layer arranged coaxially. The diamond nozzle has a guide hole and a microchannel on its end face. The diamond inner layer has a first through hole. The axis of the first through hole, the axis of the guide hole and the axis of the diamond nozzle do not coincide, so as to extend the length of the microchannel and ensure that the length of the microchannel meets the usage requirements. The material flows out from the valve body outlet after passing through the guide hole, the microchannel and the first through hole in sequence from the valve body inlet. The guide hole, the microchannel and the first through hole form a Z-shaped flow channel.

[0004] However, for microjet valves with a Z-shaped flow channel, the first through hole on the diamond inner layer needs to be installed in accordance with the outlet end of the microchannel, which requires high installation accuracy. If a split valve body is used, although the user can clean the internal microchannel after disassembly, the high assembly accuracy requirement can easily lead to misalignment. On the other hand, if an integrated valve body is used, although it can avoid misalignment caused by self-disassembly, the internal components of the valve body cannot be disassembled and replaced, and the microchannel cannot be cleaned when it is blocked. Utility Model Content

[0005] (a) The problem to be solved by this utility model is: how to make it easy to clean the microchannels inside the valve body while reducing the assembly precision.

[0006] (II) Technical Solution

[0007] This utility model provides a micro-jet valve, including a valve body;

[0008] The valve body is a detachable valve body;

[0009] The valve body is provided with an inlet, a receiving cavity, and an outlet in sequence.

[0010] The receiving cavity is provided with a pressing structure, the pressing structure is provided with an interactive cavity, and the interactive cavity is provided with a first flow guiding channel and a first annular groove;

[0011] Along the direction from the inlet to the outlet, a first impact block and a second impact block are sequentially arranged coaxially within the interaction cavity;

[0012] The first impact block has a microchannel on its end face near the second impact block, and the second impact block has a first through hole that coincides with its axis.

[0013] The axis of the first annular groove is perpendicular to the end face of the first impact block, and the projection of the microchannel is located within the first annular groove;

[0014] The inlet, the first flow channel, the first annular groove, the microchannel, the first through hole, and the outlet are connected in sequence.

[0015] According to one embodiment of the present invention, a circular groove is formed on the end face of the first impact block near the second impact block, one end of the microchannel extends to the outer wall surface of the first impact block, and the other end extends to the inner wall surface of the circular groove, and the extension line of the microchannel does not pass through the axis of the circular groove.

[0016] According to one embodiment of the present invention, along the direction from the inlet to the outlet, the receiving cavity includes a first chamber and a second chamber that are connected to each other;

[0017] The clamping structure includes a retainer and a T-block, wherein the retainer is disposed in the second chamber;

[0018] The cage has a cavity, the T-block is located in the cavity, and the end face of the large diameter end of the T-block and the inner wall of the cavity form the interaction cavity;

[0019] The T-shaped block has a second through hole, the large-diameter end of the T-shaped block has a first guide groove, and the cavity sidewall has a second guide groove. The first guide groove and the second guide groove are connected to form the first guide channel.

[0020] The cavity sidewall is also provided with the first annular groove.

[0021] According to one embodiment of the present invention, the clamping structure further includes a pressure ring and a first spring;

[0022] The pressure ring is disposed in the first chamber, and the end of the pressure ring near the inlet abuts against the side wall of the first chamber.

[0023] Both the pressure ring and the first spring are sleeved on the T-shaped block. One end of the first spring is connected to the T-shaped block, and the other end is connected to the pressure ring.

[0024] According to one embodiment of the present invention, the two ends of the retainer have a first arcuate surface and a second arcuate surface, respectively;

[0025] The second chamber has opposing first and second arc-shaped walls;

[0026] The first arc-shaped surface abuts against the first arc-shaped wall, and the second arc-shaped surface abuts against the second arc-shaped wall;

[0027] The cage is also provided with a third through hole that communicates with the first through hole.

[0028] According to one embodiment of the present invention, the retainer includes a cylindrical block, the two end faces of the cylindrical block being the first arcuate surface and the second arcuate surface, respectively;

[0029] The cylindrical block is also provided with a third through hole that communicates with the first through hole.

[0030] According to one embodiment of the present invention, the retainer includes a first frame and a second frame;

[0031] One end of the first frame abuts against the second frame, and the sides of the first frame and the second frame that are far apart from each other are the first arc-shaped surface and the second arc-shaped surface, respectively;

[0032] The second frame body is also provided with a third through hole that communicates with the first through hole.

[0033] According to one embodiment of the present utility model, the second frame body is provided with a storage groove, and the side wall of the storage groove is provided with a third guide groove and a second annular groove that are connected to each other. The storage groove is equipped with a third impact block and a fourth impact block. The third impact block has the same structure as the first impact block, and the fourth impact block has the same structure as the second impact block.

[0034] A second spring is provided between the third impact block and the first frame.

[0035] According to one embodiment of the present invention, the valve body includes a housing, a gland, a first connecting pipe, and a second connecting pipe;

[0036] The gland is connected to the housing by fasteners, and the receiving cavity is formed between the gland and the housing;

[0037] The first groove of the first connecting pipe is connected to the side of the pressure cap away from the housing;

[0038] The housing has a second groove on the side away from the pressure cap for connecting the second connecting pipe;

[0039] The first groove, the second chamber, and one side of the second groove are respectively connected to a first leak detection port, a second leak detection port, and a third leak detection port;

[0040] The pressure cap is provided with a pressure relief mechanism, which includes a first pressure relief channel opened on the pressure cap and connected to the inlet. The end of the first pressure relief channel away from the inlet is provided with a connected adjustment groove. One side of the adjustment groove is connected to a pressure relief port. The adjustment groove is provided with an adjustment element for adjusting the pressure.

[0041] A high-pressure homogenizer includes any one of the microjet valves described above.

[0042] The beneficial effects of this utility model are:

[0043] The valve body is designed to be detachable, facilitating the disassembly and replacement of internal components and the cleaning of the microchannel. By opening a first guide channel and a first annular groove within the interaction chamber, material at the inlet can enter the first annular groove through the first guide channel. Since one end of the microchannel can extend to the outer wall of the first impact block and communicate with the first annular groove, even if the first through hole on the second impact block is not offset from its own axis, it is sufficient for the microchannel on the end face of the first impact block to reach the specified length. Therefore, the axis of the first through hole can be aligned with the axis of the second impact block. Regardless of any rotation of the second impact block, the position of the first through hole is always at the center of the second impact block. Furthermore, since the axis of the first annular groove is perpendicular to the end face of the first impact block, the projection of the microchannel is located within the first annular groove. Therefore, no matter how the first impact block is rotated or positioned, the material in the first annular groove can enter the microchannel and finally flow out through the first through hole from the outlet. This reduces installation accuracy and makes it less likely for users to misalign their devices during disassembly and assembly. Attached Figure Description

[0044] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0045] Figure 1 A cross-sectional view of a microjet valve having a pressure relief mechanism and a first type of retainer provided for an embodiment of the present invention;

[0046] Figure 2 A cross-sectional view of a microjet valve with a second type of retainer provided for an embodiment of the present utility model;

[0047] Figure 3 A cross-sectional view of a microjet valve with a third type of retainer provided for an embodiment of this utility model;

[0048] Figure 4Provided for the embodiments of this utility model Figure 1 Enlarged view of section A;

[0049] Figure 5 A side view of the first impact block provided in an embodiment of this utility model;

[0050] Figure 6 A perspective view of the retainer and T-block provided in an embodiment of this utility model.

[0051] Icons: 1. Valve body; 101. Inlet; 102. Outlet; 103. Housing; 104. Gland; 2. First guide channel; 201. First guide groove; 202. Second guide groove; 3. First annular groove; 4. First impact block; 401. Circular groove; 5. Second impact block; 501. First through hole; 6. Microchannel; 7. T-block; 701. Second through hole; 8. Pressure ring; 9. First spring; 10. Cage; 11. Second annular groove; 12. Adjusting component; 13. Third impact block; 14. Fourth impact block; 15. First connecting pipe fitting; 16. Second connecting pipe fitting; 17. Second spring; 18. First leak detection port; 19. Second leak detection port; 20. Third leak detection port. Detailed Implementation

[0052] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0053] Example 1:

[0054] like Figures 1-6 As shown, one embodiment of this utility model provides a microjet valve, including a valve body 1;

[0055] Valve body 1 is a detachable valve body;

[0056] The valve body 1 is provided with an inlet 101, a receiving cavity and an outlet 102 in sequence;

[0057] The cavity is provided with a pressing structure, the pressing structure is provided with an interactive cavity, and the interactive cavity is provided with a first annular groove 3 connected to the first flow channel 2.

[0058] Along the direction from inlet 101 to outlet 102, a first impact block 4 and a second impact block 5 are arranged in sequence in the interactive cavity;

[0059] A microchannel 6 is provided on the end face of the first impact block 4 near the second impact block 5, and a first through hole 501 with the same axis as the second impact block 5 is provided on the second impact block 5.

[0060] The axis of the first annular groove 3 is perpendicular to the end face of the first impact block 4, and the projection of the microchannel 6 is located inside the first annular groove 3.

[0061] Inlet 101, first guide channel 2, microchannel 6, first through hole 501 and outlet 102 are connected in sequence.

[0062] The valve body is designed to be detachable, facilitating the disassembly and replacement of internal components and the cleaning of the microchannels. By opening a first guide channel 2 and a first annular groove 3 within the interaction cavity, material at the inlet 101 can enter the first annular groove 3 through the first guide channel 2. Since one end of the microchannel 6 can extend to the outer wall of the first impact block 4 and communicate with the first annular groove 3, even if the first through hole 501 on the second impact block 5 is not offset from its own axis, it is sufficient for the microchannel 6 opened on the end face of the first impact block 4 to reach the specified length. Therefore, the first through hole 501 can be opened to the specified length. The axis of the hole 501 can be aligned with the axis of the second impact block 5. No matter how the second impact block 5 is rotated, the position of the first through hole 501 will always be at the center of the second impact block 5. Since the axis of the first annular groove 3 is perpendicular to the end face of the first impact block 4, the projection of the microchannel 6 is located in the first annular groove 3. Therefore, no matter how the first impact block 4 is rotated or placed, the material in the first annular groove 3 can enter the microchannel 6 and finally flow out from the outlet 102 through the first through hole 501. This reduces the installation accuracy and makes it less likely for the user to install it incorrectly when disassembling and assembling it themselves.

[0063] The first impact block 4 and the second impact block 5 are both made of diamond and are embedded in the cavity of the cage 10. They are wear-resistant and have high compressive strength. They can also be wrapped with a metal layer on the outside of the diamond to further enhance their compressive strength.

[0064] Because only microchannels 6 are opened on the first impact block 4, the first impact block 4 has better pressure resistance.

[0065] Furthermore, such as Figure 5 As shown, multiple sets of microchannels 6 can be provided. A circular groove 401 is formed on the end face of the first impact block 4 near the second impact block 5. One end of the microchannel 6 extends to the outer wall of the first impact block 4, and the other end extends to the inner wall of the circular groove 401. The extension line of the microchannel 6 does not pass through the axis of the circular groove 401. At this time, the sum of the length of the microchannel 6 and the radius of the circular groove 401 is greater than the radius of the first impact block 4. After the material is ejected from the microchannel 6, it impacts the inner wall of the circular groove 401.

[0066] The circular groove 401 is designed to be circular, which facilitates processing and reduces material accumulation caused by sharp edges.

[0067] According to one embodiment of the present invention, along the direction from inlet 101 to outlet 102, the receiving cavity includes a first chamber and a second chamber that are connected to each other;

[0068] The clamping structure includes a retainer 10 and a T-block 7, with the retainer 10 located in the second chamber;

[0069] Furthermore, such as Figures 1-4 As shown, a cavity is provided inside the retainer 10. The inner wall of the cavity includes a cavity side wall and a cavity bottom wall. The T-block 7 is located inside the cavity, and the end face of the large diameter end of the T-block 7 forms an interactive cavity with the inner wall of the cavity (that is, the end face of the large diameter end of the T-block 7 together forms an interactive cavity with the cavity side wall and the cavity bottom wall).

[0070] The retainer 10 allows the valve body 1 to be disassembled first, and then the retainer 10 can be removed to assemble and disassemble the first impact block 4 and the second impact block 5, making it easy to replace the first impact block 4 and the second impact block 5.

[0071] The T-shaped block 7 has a second through hole 701 inside, a first guide groove 201 is provided on the end face of the large diameter end of the T-shaped block 7, and a second guide groove 202 is provided on the side wall of the cavity. The first guide groove 201 and the second guide groove 202 are connected to form a first guide channel 2.

[0072] A first annular groove 3 is also provided on the side wall of the cavity.

[0073] The first impact block 4 has circular grooves 401 and microchannels 6 on both ends of its two faces (i.e., the end face near the second impact block 5 and the end face away from the second impact block 5). Preferably, the microchannels 6 on the two ends of the first impact block 4 have different specifications, so that the side in use can face the second impact block 5 as needed. Optionally, the microchannels 6 on the two ends of the first impact block 4 have the same specifications, so that if one side is damaged, the other side can be replaced for continued use.

[0074] like Figure 4 and Figure 6 As shown, after the material enters from the inlet 101, it impacts one of the circular grooves 401 through the second through hole 701 and enters the first guide groove 201. Then it continues to flow through the second guide groove 202 and the first annular groove 3 into the microchannel 6. The material impacts the inner wall of the other circular groove 401 at high speed, which homogenizes the material. Then it flows out from the outlet 102 through the first through hole 501.

[0075] According to one embodiment of the present invention, the clamping structure further includes a pressure ring 8 and a first spring 9;

[0076] The pressure ring 8 is located in the first chamber, and the end of the pressure ring 8 near the inlet 101 abuts against the side wall of the first chamber.

[0077] Along the direction from inlet 101 to outlet 102, pressure ring 8 and first spring 9 are sequentially sleeved on T-block 7. At this time, one end of the first spring 9 is connected to T-block 7, and the other end is connected to pressure ring 8.

[0078] The first spring 9, along with the pressure ring 8 and the T-block 7, can pre-press the impact structure (which includes the first impact block 4 and the second impact block 5) within the retainer 10, achieving the desired pressing effect while preventing rigid pressing from damaging the impact structure.

[0079] According to one embodiment of the present invention, the two ends of the retainer 10 have a first arcuate surface and a second arcuate surface, respectively;

[0080] The second chamber has opposing first and second arc-shaped walls;

[0081] The first arc-shaped surface abuts against the first arc-shaped wall, and the second arc-shaped surface abuts against the second arc-shaped wall;

[0082] The retainer 10 is also provided with a third through hole that communicates with the first through hole 501.

[0083] The first and second arc-shaped surfaces on both sides of the retainer 10 enable the two ends of the retainer 10 to automatically align with the first and second arc-shaped walls of the second chamber. Both the first and second arc-shaped surfaces are rotating arc surfaces, which, relative to ordinary flat surfaces, ensure effective sealing.

[0084] The cage 10 has at least three forms:

[0085] Form 1, such as Figure 1 As shown, the cage 10 includes a first frame and a second frame;

[0086] The sides of the first frame and the second frame that are far apart from each other are the first arc-shaped surface and the second arc-shaped surface, respectively;

[0087] The second frame also has a third through hole that communicates with the first through hole 501.

[0088] A fourth through hole connected to the interaction cavity is provided on the side of the first frame near the outlet 102. The diameter of the fourth through hole is smaller than the diameter of the interaction cavity.

[0089] The second frame is provided with a storage slot. The side wall of the storage slot is provided with a third guide slot and a second annular slot 11 that are connected to each other. The storage slot is equipped with a third impact block 13 and a fourth impact block 14. A second spring 17 is provided between the third impact block 13 and the first frame.

[0090] The first frame is abutted by the second spring 17 and the third impact block 13.

[0091] Preferably, the third impact block 13 has the same structure as the first impact block 4. At this time, the end face of the third impact block 13 near the fourth impact block 14 is also provided with a microchannel 6, and the fourth impact block 14 has the same structure as the second impact block 5.

[0092] The third impact block 13, the fourth impact block 14, the third guide groove and the second annular groove 11 can further homogenize the material, resulting in a better homogenization effect.

[0093] The second spring 17 can press the third impact block 13 and the fourth impact block 14 together, and because it is an elastic pressing, it can prevent the third impact block 13 and the fourth impact block 14 from being damaged by conventional rigid pressing.

[0094] Form two, such as Figure 2 As shown, the cage 10 includes a first frame and a second frame;

[0095] The sides of the first frame and the second frame that are far apart from each other are the first arc-shaped surface and the second arc-shaped surface, respectively;

[0096] The second frame body is also provided with a third through hole that is connected to the first through hole 501;

[0097] A fourth through hole connected to the interaction cavity is provided on the side of the first frame near the outlet 102. The diameter of the fourth through hole is equal to the diameter of the interaction cavity and it is a straight hole.

[0098] One end face of the second frame abuts against the second impact block 5.

[0099] Form three, such as Figure 3 As shown, the cage 10 includes a cylindrical block, and the two end faces of the cylindrical block are a first arc-shaped surface and a second arc-shaped surface, respectively;

[0100] The cylindrical block is also provided with a third through hole that is connected to the first through hole 501.

[0101] The first frame has a fourth through hole on the side near the outlet 102 that communicates with the interaction cavity. The diameter of the fourth through hole is smaller than the diameter of the interaction cavity. The side wall of the second impact block 5 abuts against the side wall of the cylindrical block.

[0102] According to one embodiment of the present invention, the valve body 1 includes a housing 103, a gland 104, a first connecting pipe 15, and a second connecting pipe 16;

[0103] The gland 104 is connected to the housing 103 by fasteners, and a receiving cavity is formed between the gland 104 and the housing 103.

[0104] The first groove of the first connecting pipe 15 is connected to the side of the pressure cap 104 away from the housing 103;

[0105] The housing 103 has a second groove on the side away from the pressure cap 104 for connecting the second connecting pipe 16;

[0106] The first groove, the second chamber, and the second groove are respectively connected to the first leak detection port 18, the second leak detection port 19, and the third leak detection port 20;

[0107] The first leak detection port 18 can detect whether there is material leakage between the inlet 101 and the first connecting pipe 15 in a timely manner. The second leak detection port 19 can detect whether there is material leakage in the receiving cavity in a timely manner. The third leak detection port 20 can detect whether there is material leakage between the outlet 102 and the second connecting pipe 16 in a timely manner.

[0108] Specifically, the first connecting pipe fitting 15 includes an externally threaded ring screwed into the first groove. A groove is formed at one end of the externally threaded ring near the first groove, and an internally threaded ring is slidably connected within the groove. The first connecting pipe is screwed into the internally threaded ring. When the externally threaded ring is turned, the internally threaded ring in the groove moves along the direction from the inlet 101 to the outlet 102 under the influence of the externally threaded ring, thereby moving the first connecting pipe. This arrangement ensures that when the first connecting pipe is connected to the inlet 101, the rotational force will not cause wear to the inlet 101 or its end face.

[0109] Furthermore, the inner wall of the inlet 101 near the first connecting pipe is provided with a first conical surface, the diameter of the first conical surface near the outlet 102 is smaller than the diameter of its other end, and the outer wall of the first connecting pipe near the inlet 101 is provided with a second conical surface, the diameter of the second conical surface near the inlet 101 is smaller than the diameter of its other end. When the seal is in place, the second conical surface and the first conical surface are in close contact.

[0110] The second connecting pipe 16 includes a second connecting pipe, the outer wall of which is screwed to the inner wall of the second groove. When the second connecting pipe is screwed into place, the end of the second connecting pipe is tightly abutted against the outlet 102.

[0111] The pressure cap 104 and the housing 103 are detachably connected by fasteners. The pressure cap 104 has multiple mounting holes, which are evenly spaced around the axis of the pressure cap 104. The housing 103 has multiple threaded grooves, and the threaded grooves, mounting holes and bolts correspond one-to-one. The detachable connection between the housing 103 and the pressure cap 104 is achieved by screwing the bolts through the mounting holes into the threaded grooves.

[0112] like Figure 1 As shown, the pressure cover 104 is provided with a pressure relief mechanism. The pressure relief mechanism includes a first pressure relief channel that is opened on the pressure cover 104 and communicates with the inlet 101. The end of the first pressure relief channel away from the inlet 101 is provided with a communicating adjustment groove, and one side of the adjustment groove is connected to a pressure relief port.

[0113] The regulating groove is equipped with an adjusting element 12 for adjusting the pressure.

[0114] Adjusting component 12 includes a T-shaped valve core, a third spring, and an adjusting bolt;

[0115] The adjusting bolt is screwed into the adjusting groove. One end of the third spring abuts against the T-shaped valve core, and the other end abuts against the adjusting bolt. The T-shaped valve core is slidably connected in the adjusting groove. When the internal pressure of the valve body 1 is too high and exceeds the set value, the material enters the first pressure relief channel from the inlet 101 and continues to enter the adjusting groove, causing the T-shaped valve core to be pressed down, the third spring to be compressed, and the T-shaped valve core to move down and leak out of the pressure relief port. The material flows out from the pressure relief port, thereby ensuring that the pressure does not exceed the set value.

[0116] Example 2: A high-pressure homogenizer, including a microjet valve.

[0117] In the description of this utility model, it should be noted that the terms "upper" and "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0118] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0119] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A micro-jet valve, characterized in that, Including valve body (1); The valve body (1) is a detachable valve body; The valve body (1) is provided with an inlet (101), a receiving cavity and an outlet (102) in sequence. The receiving cavity is provided with a pressing structure, the pressing structure is provided with an interactive cavity, and the interactive cavity is provided with a first flow channel (2) and a first annular groove (3). Along the direction from the inlet (101) to the outlet (102), the interactive cavity is provided with a coaxial first impact block (4) and a second impact block (5) in sequence. The first impact block (4) has a microchannel (6) on its end face near the second impact block (5), and the second impact block (5) has a first through hole (501) that coincides with its axis. The axis of the first annular groove (3) is perpendicular to the end face of the first impact block (4), and the projection of the microchannel (6) is located in the first annular groove (3); The inlet (101), the first flow channel (2), the first annular groove (3), the microchannel (6), the first through hole (501), and the outlet (102) are connected in sequence.

2. The micro-jet valve according to claim 1, characterized in that, A circular groove (401) is provided on the end face of the first impact block (4) near the second impact block (5). One end of the microchannel (6) extends to the outer wall of the first impact block (4), and the other end extends to the inner wall of the circular groove (401). The extension line of the microchannel (6) does not pass through the axis of the circular groove (401).

3. A microjet valve according to claim 2, characterized in that, Along the direction from the inlet (101) to the outlet (102), the receiving cavity includes a first chamber and a second chamber that are in communication with each other; The clamping structure includes a retainer (10) and a T-block (7), wherein the retainer (10) is disposed in the second chamber; The retainer (10) has a cavity, the T-block (7) is located in the cavity, and the end face of the large diameter end of the T-block (7) forms the interactive cavity with the inner wall of the cavity; The T-shaped block (7) has a second through hole (701) inside, and a first guide groove (201) is provided on the end face of the large diameter end of the T-shaped block (7). A second guide groove (202) is provided on the side wall of the cavity. The first guide groove (201) and the second guide groove (202) are connected to form the first guide channel (2). The cavity sidewall is also provided with the first annular groove (3).

4. A microjet valve according to claim 3, characterized in that, The clamping structure also includes a pressure ring (8) and a first spring (9); The pressure ring (8) is disposed in the first chamber, and one end of the pressure ring (8) near the inlet (101) abuts against the side wall of the first chamber; The pressure ring (8) and the first spring (9) are both sleeved on the T-block (7). One end of the first spring (9) is connected to the T-block (7), and the other end is connected to the pressure ring (8).

5. A microjet valve according to claim 4, characterized in that, The cage (10) has a first arcuate surface and a second arcuate surface at its two ends, respectively; The second chamber has opposing first and second arc-shaped walls; The first arc-shaped surface abuts against the first arc-shaped wall, and the second arc-shaped surface abuts against the second arc-shaped wall; The retainer (10) is also provided with a third through hole that communicates with the first through hole (501).

6. A microjet valve according to claim 5, characterized in that, The retainer (10) includes a cylindrical block, the two end faces of which are the first arcuate surface and the second arcuate surface, respectively; The cylindrical block is also provided with a third through hole that is connected to the first through hole (501).

7. A microjet valve according to claim 5, characterized in that, The retainer (10) includes a first frame and a second frame; One end of the first frame abuts against the second frame, and the sides of the first frame and the second frame that are far apart from each other are the first arc-shaped surface and the second arc-shaped surface, respectively; The second frame body is also provided with a third through hole that communicates with the first through hole (501).

8. A micro-jet valve according to claim 7, characterized in that, The second frame is provided with a storage slot, and the side wall of the storage slot is provided with a third guide slot and a second annular slot (11) that are connected. The storage slot is provided with a third impact block (13) and a fourth impact block (14). The third impact block (13) has the same structure as the first impact block (4), and the fourth impact block (14) has the same structure as the second impact block (5). A second spring (17) is provided between the third impact block (13) and the first frame.

9. A microjet valve according to claim 3, characterized in that, The valve body (1) includes a housing (103), a gland (104), a first connecting pipe (15), and a second connecting pipe (16). The pressure cap (104) is connected to the housing (103) by fasteners, and the receiving cavity is formed between the pressure cap (104) and the housing (103); The first groove of the first connecting pipe (15) is connected to the side of the pressure cap (104) away from the housing (103); The housing (103) has a second groove on the side away from the pressure cap (104) for connecting the second connecting pipe (16); The first groove, the second chamber, and one side of the second groove are respectively connected to a first leak detection port (18), a second leak detection port (19), and a third leak detection port (20). The pressure cover (104) is provided with a pressure relief mechanism. The pressure relief mechanism includes a first pressure relief channel opened on the pressure cover (104) and connected to the inlet (101). The end of the first pressure relief channel away from the inlet (101) is provided with a connected adjustment groove. One side of the adjustment groove is connected to a pressure relief port. The adjustment groove is provided with an adjustment element (12) for adjusting the pressure.

10. A high-pressure homogenizer, characterized in that, Includes a microjet valve as described in any one of claims 1-9.

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