Microfluidic valve and high pressure homogenization apparatus

Abstract

The utility model relates to micro fluidic valve technical field, concretely relates to a kind of micro fluidic valve and high pressure homogenizer equipment.The utility model provides a kind of micro fluidic valve, including valve body, the valve body includes shell and gland, the shell and the gland are detachably connected, inlet is equipped on the gland, outlet is equipped on the shell, accommodating cavity is formed between the gland and the shell, in the direction from the inlet to the outlet, impact structure and compression structure are sequentially equipped in the accommodating cavity.The utility model is detachably connected by the shell and the gland being set, the internal parts of valve body can be disassembled, then when the size of slit is blocked or need to be replaced, the gland can be disassembled from the shell, the internal compression structure and impact structure are removed, and are replaced or cleaned, and because shunt passage is opened in accommodating cavity, the strength of impact structure can be increased, and the pressure strength is improved.

Description

Technical Field

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

[0002] The micro-jet valve with high-pressure homogenization function is the core component of high-pressure homogenization equipment. Its core function is to break down and uniformly disperse particles, droplets or cells in the material through high-pressure jet, shear force, cavitation effect and collision.

[0003] Currently, a common type of microjet valve on the market includes an integrated closed valve body and a diamond structure fixed inside the valve body. The diamond structure has a Y-shaped channel, which includes two sets of flow channels. Each set of flow channels includes a connected diversion channel and a slit. The ends of the two slits away from the diversion channel are connected. The material flows from the valve body inlet, is diverted by the two diversion channels and the slits, and then collides and merges, thereby homogenizing the material.

[0004] However, because microjet valves like the one mentioned above are completely sealed (integrated), the internal components of the valve body cannot be replaced, making the slit size unadjustable. If blockage occurs, the internal components cannot be removed for cleaning. Furthermore, the diversion channels on the diamond structure result in low strength of the diamond structure, which in turn leads to low pressure resistance. Utility Model Content

[0005] (a) The problem to be solved by this utility model is that the internal components of the valve body cannot be replaced, which makes the slit size unadjustable. If a blockage occurs, the internal components cannot be removed for cleaning. Furthermore, opening a diversion channel on the diamond structure will reduce the strength of the diamond structure and thus reduce its pressure resistance.

[0006] (II) Technical Solution

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

[0008] The valve body includes a housing and a gland, and the housing and the gland are detachably connected;

[0009] The pressure cap has an inlet, the housing has an outlet, and a receiving cavity is formed between the pressure cap and the housing. An impact structure and a pressing structure are sequentially arranged in the receiving cavity along the direction from the inlet to the outlet.

[0010] The sidewall of the receiving cavity is symmetrically provided with diversion channels that communicate with the inlet. The impact structure is provided with at least one set of microchannels. Each microchannel includes two symmetrical slits. The inlet ends of the two slits are both connected to the diversion channels, and the outlet ends of the two slits are opposite to each other.

[0011] The pressing structure is provided with a flow channel, and the two ends of the flow channel are respectively connected to the microchannel and the outlet.

[0012] According to one embodiment of the present invention, the receiving cavity includes a first chamber and a second chamber;

[0013] The diversion channel includes a first guide channel and a second guide channel;

[0014] The first sidewall is provided with the first flow guide groove, and the second sidewall is provided with the second flow guide groove;

[0015] The first and second guide channels are arranged vertically and are interconnected to form the diversion channel.

[0016] According to one embodiment of the present invention, the impact structure includes a first impact block and a second impact block that abut against each other;

[0017] The first impact block has a first impact groove and a second impact groove at its two ends, respectively.

[0018] Therefore, the microchannels are provided on both ends of the first impact block, and the end away from the second impact block abuts against the first sidewall.

[0019] An annular groove is provided on the second sidewall, and the diversion channel is connected to the slit through the annular groove;

[0020] The second impact block is provided with a first through hole, and the first through hole, the second impact groove and the slit are interconnected.

[0021] According to one embodiment of the present invention, the clamping structure includes a retainer and a clamping member, the impact structure is disposed in the first chamber, and the retainer is disposed in the second chamber;

[0022] The flow channel includes a second through hole opened in the retainer, and the retainer has a cavity communicating with the second through hole. One end of the clamping member abuts against the side wall of the cavity, and the other end abuts against the impact structure.

[0023] 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;

[0024] The second chamber has opposing first and second arc-shaped walls;

[0025] 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.

[0026] According to one embodiment of the present invention, the retainer includes a mounting block, the two end faces of the mounting block being the first arc-shaped surface and the second arc-shaped surface, respectively;

[0027] The mounting block has the cavity inside, and the mounting block also has a second through hole that communicates with the outlet.

[0028] According to one embodiment of the present invention, the retainer includes an annular block and an abutment block;

[0029] The annular block has the cavity inside, one end of the annular block abuts against the abutting block, and the sides of the annular block and the abutting block that are far apart from each other are the first arc-shaped surface and the second arc-shaped surface, respectively;

[0030] The abutment block is provided with a second through hole that communicates with the outlet.

[0031] According to one embodiment of the present invention, the clamping member includes a pressure ring, a T-block, and a spring;

[0032] The pressure ring and the spring are sleeved on the T-shaped block;

[0033] One end of the spring is connected to the T-block, and the other end is connected to the pressure ring;

[0034] The T-shaped block is provided with a third through hole, and the first through hole, the third through hole and the second through hole are connected in sequence.

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

[0036] The pressure cap has a first groove on the side away from the housing for connecting the first connector;

[0037] The housing has a second groove on the side away from the pressure cap for connecting the second connector;

[0038] 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.

[0039] A high-pressure homogenizing device, comprising any one of the microjet valves described above.

[0040] The beneficial effects of this utility model are:

[0041] The detachable housing and gland allow for the disassembly and assembly of internal valve components. This facilitates the removal of the gland from the housing when blockage occurs or the slit size needs to be changed, enabling the replacement or cleaning of the internal clamping and impact structures. Furthermore, the presence of a flow diversion channel within the cavity increases the strength of the impact structure, thereby enhancing its pressure resistance. Attached Figure Description

[0042] 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.

[0043] Figure 1 A cross-sectional view of a microjet valve with a first type of clamping structure provided for an embodiment of this utility model;

[0044] Figure 2 A cross-sectional view of a microjet valve with a second clamping structure provided for an embodiment of this utility model;

[0045] Figure 3 A cross-sectional view of a microjet valve with a third clamping structure provided for an embodiment of this utility model;

[0046] Figure 4 Provided for the embodiments of this utility model Figure 1 Enlarged view of part A;

[0047] Figure 5 A side view of the first impact block provided in an embodiment of this utility model.

[0048] Icons: 1. Gland; 101. Inlet; 2. Housing; 201. Outlet; 3. Diversion channel; 301. First guide groove; 302. Second guide groove; 4. Slit; 5. Annular groove; 6. First impact block; 601. First impact groove; 602. Second impact groove; 7. Second impact block; 701. First through hole; 8. Mounting block; 9. Annular block; 10. Abutment block; 11. Pressure ring; 12. Spring; 13. T-block; 14. First leak detection port; 15. Second leak detection port; 16. Third leak detection port; 17. External threaded ring; 18. Internal threaded ring; 19. First connecting pipe; 20. Second connecting pipe; 21. Fastener. Detailed Implementation

[0049] 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.

[0050] Example 1:

[0051] like Figures 1-5 As shown, one embodiment of this utility model provides a microjet valve, including a valve body;

[0052] The valve body includes a housing 2 and a gland 1, which are detachably connected;

[0053] The pressure cap 1 is provided with an inlet 101, and the housing 2 is provided with an outlet 201. A receiving cavity is formed between the pressure cap 1 and the housing 2. An impact structure and a pressing structure are sequentially provided in the receiving cavity along the direction from the inlet 101 to the outlet 201.

[0054] The sidewall of the receiving cavity is symmetrically provided with diversion channels 3 connected to the inlet 101. The impact structure is provided with at least one set of microchannels. The microchannels include two symmetrical slits 4. The inlet ends of the two slits 4 are connected to the diversion channels 3, and the outlet ends of the two slits 4 are opposite to each other.

[0055] The pressing structure is provided with a flow channel, and the two ends of the flow channel are connected to the slit 4 and the outlet 201, respectively.

[0056] After entering through inlet 101, the material is diverted through symmetrically opened diversion channels 3. The diverted material collides with each other through two high-speed jets in slits 4, achieving homogenization through particle collisions. After homogenization, it flows out through the flow channel from outlet 201.

[0057] The detachable connection between the housing 2 and the gland 1 allows for the disassembly and assembly of internal valve components. This facilitates the removal of the gland 1 from the housing 2 when blockage occurs or the slit 4 size needs to be changed, allowing for the removal of the internal clamping and impact structures for replacement or cleaning. Furthermore, the presence of a flow diversion channel 3 within the cavity eliminates the need for a flow diversion channel 3 on the impact structure, thereby increasing the strength of the impact structure and improving its pressure resistance.

[0058] Furthermore, the receiving cavity includes a first chamber and a second chamber. The first chamber has a first sidewall and a second sidewall connected to each other. The diversion channel 3 includes a first guide channel 301 and a second guide channel 302. The first guide channel 301 is symmetrically provided on the first sidewall, and the second guide channel 302 is symmetrically provided on the second sidewall.

[0059] The first guide groove 301 and the second guide groove 302 in each diversion channel 3 correspond one-to-one. The first guide groove 301 and the second guide groove 302 are arranged vertically and are interconnected to form the diversion channel 3.

[0060] The first sidewall is perpendicular to the direction from inlet 101 to outlet 201, the first guide channel 301 extends radially from the center of the gland 1, and the second guide channel 302 extends along the direction from inlet 101 to outlet 201.

[0061] According to one embodiment of the present invention, the impact structure includes a first impact block 6 and a second impact block 7 that abut against each other;

[0062] The first impact block 6 has a first impact groove 601 and a second impact groove 602 respectively at both ends;

[0063] Therefore, microchannels are provided on both ends of the first impact block 6, and the end away from the second impact block 7 abuts against the first sidewall.

[0064] An annular groove 5 is provided on the second side wall, and the diversion channel 3 is connected to the slit 4 through the annular groove 5.

[0065] The second impact block 7 is provided with a first through hole 701, and the first through hole 701, the second impact groove 602 and the slit 4 are interconnected.

[0066] Preferably, one set of microchannels is set; optionally, multiple sets of microchannels are set.

[0067] Preferably, the microchannels on the two ends of the first impact block 6 are of different sizes, so that the first impact block 6 can be flipped over to replace the microchannels on the other end as needed.

[0068] Optionally, the microchannels on both ends of the first impact block 6 are of the same size. When one side is damaged, the first impact block 6 can be flipped over and the other side replaced for continued use, saving costs.

[0069] Because the annular groove 5 can re-converge the material after it has been diverted through the two diversion channels 3, the end of the slit 4 of the first impact block 6 does not need to correspond to the end of the diversion channel 3 during installation, resulting in higher installation efficiency. Furthermore, after disassembly and replacement, it is less likely that the micro-jet valve will become unusable due to installation orientation issues.

[0070] Both the first impact block 6 and the second impact block 7 are made of diamond and are embedded in the first cavity. They are wear-resistant and have high pressure resistance. They can also be wrapped with a metal layer on the outside of the diamond to further enhance the pressure resistance.

[0071] By setting the first impact groove 601, the material entering from the inlet 101 can impact the first impact groove 601 and then be diverted by the two first guide grooves 301. The material in each first guide groove 301 flows into the annular groove 5 after passing through the second guide groove 302. The material gathered in the annular groove 5 enters the two slits 4 respectively and collides with each other from the outlet end of the slits 4. The collision position is in the second impact groove 602. After being homogenized by the collision, the material flows out from the outlet 201 after passing through the first through hole 701, the third through hole and the second through hole.

[0072] Preferably, the first impact groove 601 and the second impact groove 602 are circular grooves, which facilitates processing and reduces material accumulation caused by sharp edges.

[0073] like Figure 5 As shown, two slits 4 are symmetrically arranged. The sum of the length of the slit 4 and the radius of the second impact groove 602 is equal to the radius of the first impact block 6. Taking one side of the second impact groove 602 as an example, one end of each slit 4 is connected to the second impact groove 602, and the other end extends to the side wall of the first impact block 6.

[0074] According to one embodiment of the present invention, the clamping structure includes a retainer and a clamping member, the impact structure is disposed in the first chamber, and the retainer is disposed in the second chamber;

[0075] The flow channel includes a second through hole opened in the cage, and the cage has a cavity connected to the second through hole. One end of the clamping member abuts against the side wall of the cavity, and the other end abuts against the impact structure.

[0076] According to one embodiment of the present invention, the clamping component includes a pressure ring 11, a T-block 13, and a spring 12;

[0077] The pressure ring 11 and the spring 12 are sleeved on the T-block 13;

[0078] One end of the spring 12 is connected to the T-block 13, and the other end is connected to the pressure ring 11;

[0079] The T-block 13 has a third through hole, and the first through hole 701, the third through hole, and the second through hole are connected in sequence. The third through hole and the second through hole form a flow channel. The flow channel is formed by the connection of the third through hole and the second through hole.

[0080] According to one embodiment of the present invention, the two ends of the retainer have a first arc-shaped surface and a second arc-shaped surface, respectively;

[0081] The second chamber has opposing first and second arc-shaped walls;

[0082] 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.

[0083] The first and second arc-shaped surfaces on both sides of the cage enable the cage to automatically align itself, and both the first and second arc-shaped surfaces are rotating arc surfaces, which, compared to ordinary flat surfaces, ensures an effective seal.

[0084] The cage can be configured in two ways:

[0085] According to one embodiment of the present invention, the first type of retainer is as follows: Figure 1 and Figure 3 As shown, the cage includes a mounting block 8, and the two end faces of the mounting block 8 are a first arc-shaped surface and a second arc-shaped surface, respectively;

[0086] The mounting block 8 has a cavity inside, and a second through hole that communicates with the outlet 201 is also provided inside the mounting block 8.

[0087] According to one embodiment of the present invention, the second type of retainer is as follows: Figure 2 As shown, the cage includes an annular block 9 and an abutment block 10;

[0088] The annular block 9 has a cavity inside, and one end of the annular block 9 abuts against the abutting block 10. The sides of the annular block 9 and the abutting block 10 that are far apart from each other are the first arc surface and the second arc surface, respectively.

[0089] The abutment block 10 is provided with a second through hole that communicates with the outlet 201.

[0090] Furthermore, the side of the abutting block 10 that is close to the annular block 9 is also set as a rotating arc surface, which abuts against each other to form a rigid seal.

[0091] Furthermore, the pressure ring 11 can be of two types: the first type is an annular body with a T-shaped hole inside; the second type is an annular body with a straight hole inside.

[0092] When the first type of pressure ring 11 is used, such as Figure 1 As shown, the large-diameter end of the T-block 13 abuts against the second impact block 7, and the pressure ring 11 abuts against the inner wall of the cavity. At this time, the first type of retainer (mounting block 8) is selected as the first clamping structure.

[0093] When the second type of pressure ring 11 is used, such as Figure 3 As shown, the large-diameter end of the T-block 13 abuts against the inner wall of the abutment block 10, and the pressure ring 11 abuts against the second impact block 7. At this time, the second type of retainer (abutment block 10 and ring block 9) is selected as the second type of clamping structure.

[0094] When the second type of pressure ring 11 is used, such as Figure 3As shown, the large-diameter end of the T-block 13 abuts against the inner wall of the cavity, and the pressure ring 11 abuts against the second impact block 7. At this time, the first type of retainer (mounting block 8) is selected as the third type of clamping structure.

[0095] According to one embodiment of the present invention, the valve body includes a first connecting member and a second connecting member;

[0096] The pressure cap 1 has a first groove on the side away from the housing 2 for connecting the first connector;

[0097] The housing 2 has a second groove on the side away from the pressure cover 1 for connecting the second connector;

[0098] The first groove, the second chamber, and one side of the second groove are respectively connected to the first leak detection port 14, the second leak detection port 15, and the third leak detection port 16.

[0099] The first leak detection port 14 can detect whether there is material leakage between the inlet 101 and the first connector in a timely manner. The second leak detection port 15 can detect whether there is material leakage in the second chamber in a timely manner. The third leak detection port 16 can detect whether there is material leakage between the outlet 201 and the second connector in a timely manner.

[0100] Specifically, the first connecting member includes an externally threaded ring 17 screwed into the first groove. A circular groove is formed at one end of the externally threaded ring 17 near the first groove. An internally threaded ring 18 is slidably connected within the circular groove, and a first connecting pipe 19 is screwed into the internally threaded ring 18. When the externally threaded ring 17 is turned, the internally threaded ring 18 in the circular groove moves along the direction from the inlet 101 to the outlet 201 under the influence of the externally threaded ring 17, thereby moving the first connecting pipe 19. This arrangement ensures that when the first connecting pipe 19 mates with the inlet 101, the first connecting pipe 19 will not cause wear to the inlet 101 and its end face due to rotational force.

[0101] Furthermore, the inner wall of the inlet 101 near the end of the first connecting pipe 19 is provided with a first conical surface. The diameter of the first conical surface near the end of the outlet 201 is smaller than the diameter of the other end. The outer wall of the first connecting pipe 19 near the end of the inlet 101 is provided with a second conical surface. The diameter of the second conical surface near the end of the inlet 101 is smaller than the diameter of the other end. When the seal is in place, the second conical surface and the first conical surface are in close contact.

[0102] The second connector includes a second connecting pipe 20. The outer wall of the second connecting pipe 20 is screwed to the inner wall of the second groove. When the second connecting pipe 20 is screwed into place, the end of the second connecting pipe 20 is tightly abutted against the outlet 201.

[0103] The pressure cap 1 and the housing 2 are detachably connected by fasteners 21, which are bolts. The pressure cap 1 has multiple mounting holes, which are evenly spaced around the axis of the pressure cap 1. The housing 2 has multiple threaded grooves, and the threaded grooves, mounting holes and bolts correspond one to one. The detachable connection between the housing 2 and the pressure cap 1 is achieved by passing the bolt through the mounting hole and screwing it into the threaded groove.

[0104] Example 2: A high-pressure homogenizing device, including a microjet valve.

[0105] 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.

[0106] 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.

[0107] 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 the valve body; The valve body includes a housing (2) and a gland (1), and the housing (2) and the gland (1) are detachably connected; The pressure cap (1) is provided with an inlet (101), and the housing (2) is provided with an outlet (201). A receiving cavity is formed between the pressure cap (1) and the housing (2). An impact structure and a pressing structure are sequentially provided in the receiving cavity along the direction from the inlet (101) to the outlet (201). The sidewall of the receiving cavity is symmetrically provided with diversion channels (3) that are connected to the inlet (101). The impact structure is provided with at least one set of microchannels. The microchannels include two symmetrical slits (4). The inlet ends of the two slits (4) are connected to the diversion channels (3), and the outlet ends of the two slits (4) are opposite to each other. The pressing structure is provided with a flow channel, and the two ends of the flow channel are respectively connected to the microchannel and the outlet (201).

2. The micro-jet valve according to claim 1, characterized in that, The receiving cavity includes a first chamber and a second chamber, wherein the first chamber has a first sidewall and a second sidewall connected to each other. The diversion channel (3) includes a first guide channel (301) and a second guide channel (302); The first sidewall is provided with the first flow guide groove (301), and the second sidewall is provided with the second flow guide groove (302). The first guide channel (301) and the second guide channel (302) are arranged vertically, and the first guide channel (301) and the second guide channel (302) are interconnected to form the diversion channel (3).

3. A microjet valve according to claim 2, characterized in that, The impact structure includes a first impact block (6) and a second impact block (7) that abut against each other. The first impact block (6) has a first impact groove (601) and a second impact groove (602) respectively at both ends; Therefore, the microchannels are provided on both ends of the first impact block (6), and the end away from the second impact block (7) abuts against the first sidewall. An annular groove (5) is provided on the second side wall, and the diversion channel (3) is connected to the slit (4) through the annular groove (5); The second impact block (7) is provided with a first through hole (701), and the first through hole (701), the second impact groove (602) and the slit (4) are interconnected.

4. A microjet valve according to claim 3, characterized in that, The clamping structure includes a retainer and a clamping element, the impact structure is disposed in the first chamber, and the retainer is disposed in the second chamber; The flow channel includes a second through hole opened in the retainer, and the retainer has a cavity communicating with the second through hole. One end of the clamping member abuts against the side wall of the cavity, and the other end abuts against the impact structure.

5. A microjet valve according to claim 4, characterized in that, The cage 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.

6. A microjet valve according to claim 5, characterized in that, The retainer includes a mounting block (8), the two end faces of which are the first arc-shaped surface and the second arc-shaped surface, respectively; The mounting block (8) is provided with the cavity, and the mounting block (8) is also provided with the second through hole that communicates with the outlet (201).

7. A microjet valve according to claim 5, characterized in that, The retainer includes an annular block (9) and an abutment block (10). The annular block (9) has the cavity inside, and one end of the annular block (9) abuts against the abutting block (10). The sides of the annular block (9) and the abutting block (10) that are far apart from each other are the first arc-shaped surface and the second arc-shaped surface, respectively. The abutment block (10) is provided with a second through hole that communicates with the outlet (201).

8. A microjet valve according to claim 4, characterized in that, The clamping component includes a pressure ring (11), a T-block (13), and a spring (12); The pressure ring (11) and the spring (12) are sleeved on the T-block (13); One end of the spring (12) is connected to the T-block (13), and the other end is connected to the pressure ring (11); The T-shaped block (13) is provided with a third through hole, and the first through hole (701), the third through hole and the second through hole are connected in sequence.

9. A microjet valve according to claim 2, characterized in that, The valve body includes a first connector and a second connector; The pressure cap (1) has a first groove on the side away from the housing (2) for connecting the first connector; The housing (2) has a second groove on the side away from the pressure cap (1) for connecting the second connector; The first groove, the second chamber, and one side of the second groove are respectively connected to the first leak detection port (14), the second leak detection port (15), and the third leak detection port (16).

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

Images