Static liquid high-pressure mixer

Abstract

The invention discloses a static liquid high-pressure mixer, relates to the technical field of liquid mixing, and is mainly used for solving the problems that a mixing unit body in an existing static mixer is complex in structure, and a plurality of mixing pieces are easy to mix after being detached. According to the main structure, a mixing unit comprises a blocking piece, a dispersing piece and a confluence piece which are sequentially arranged in a stacked mode, and mixing flow channels are formed in the axes of the blocking piece and the confluence piece; dispersing grooves are formed in the surfaces of the dispersing pieces, one ends of the dispersing grooves are converged at the axes of the dispersing pieces, the other ends of the dispersing grooves are divergently arranged towards the edges of the dispersing pieces and are provided with overflowing openings penetrating through the dispersing pieces, annular grooves corresponding to the overflowing openings are formed in the surfaces of the confluence pieces, and the annular grooves are communicated with the mixing flow channels of the confluence pieces through confluence grooves formed in the surfaces of the confluence pieces. According to the static liquid high-pressure mixer, the mixing unit is composed of three kinds of standard mixing pieces, the types of the mixing pieces are reduced, the structure is simplified, and meanwhile the problem that the mixing pieces are mixed up is solved.

Description

Technical Field

[0001] The invention relates to the technical field of liquid mixing, in particular to a static liquid high-pressure mixer. Background Art

[0002] When UPLC high performance liquid chromatography performs gradient elution, the online mixer includes two types: dynamic and static. Among them, the dynamic mixer has been gradually reduced in use due to its large stirring chamber volume and obvious hysteresis; therefore, the existing online mixers for liquid chromatography mostly use static mixers.

[0003] A static mixer is a highly efficient mixing device without moving parts. Current static mixers mainly utilize the mixing unit inside it, which is generally composed of multiple stacked mixing sheets. By setting different flow channels on each mixing sheet, the flow state of the fluid is changed to achieve the purpose of fully mixing different fluids.

[0004] However, the mixing unit in the existing static mixer has a complex structure, and the mixing pieces after disassembly are often easily mixed up. Summary of the invention

[0005] The object of the present invention is to provide a static liquid high-pressure mixer, wherein the mixing unit is composed of three standard mixing sheets, thereby reducing the types of mixing sheets, simplifying the structure and avoiding the problem of mixing sheet confusion.

[0006] The technical solution of the present invention to solve the above technical problems is: a static liquid high-pressure mixer, comprising an outlet base with a barrel-shaped structure and an opening facing upward, and a liquid outlet channel is penetrated at the axis of the bottom of the outlet base, an inlet seat is coaxially installed on the upper part of the outlet base, and a liquid inlet channel extending to the inside of the inlet seat is provided at the axis of the bottom surface of the inlet seat, a plurality of mixing units are coaxially arranged in sequence along the liquid flow direction in the outlet base, the mixing unit comprises a blocking sheet, a dispersing sheet and a converging sheet coaxially stacked in sequence along the liquid flow direction, and the axes of the blocking sheet and the converging sheet are penetrated by mixing channels;

[0007] A plurality of dispersion grooves are provided on the inlet side surface of the dispersion piece, one end of the plurality of dispersion grooves converge at the axis of the dispersion piece, and the other end diverges toward the edge of the dispersion piece and is provided with a flow port penetrating the dispersion piece; an annular groove arranged around the axis and corresponding to the flow port is provided on the inlet side surface of the converging piece, and the annular groove is connected to the mixing flow channel at the axis of the converging piece through a plurality of converging grooves provided on the inlet side surface of the converging piece.

[0008] As a further improvement of the present invention, a first filling piece and a second filling piece are coaxially arranged in the outlet base, and a mixing flow channel is penetrated at the axis of the first filling piece and the second filling piece, and the plurality of mixing units are arranged between the first filling piece and the second filling piece.

[0009] As a further improvement of the present invention, a plurality of positioning sheets coaxially stacked in sequence along the liquid flow direction are provided between the first filling sheet and the mixing unit, and a mixing flow channel is provided at the axis of the positioning sheet.

[0010] As a further improvement of the present invention, a sealing gasket is provided between the first filling piece and the bottom surface of the inlet seat and is arranged coaxially with the two, and a gasket flow channel is penetrated through the axis of the sealing gasket, and the sealing gasket and the first filling piece, and the sealing gasket and the bottom surface of the inlet seat are all tightly sealed.

[0011] As a further improvement of the present invention, a limit piece with a barrel-shaped structure and an opening facing upward is coaxially inserted in the outlet base, and a limit piece flow channel is penetrated through the axis of the bottom of the limit piece, and the sealing gasket, the first filling piece, the positioning piece, the mixing unit, and the second filling piece are all installed in the limit piece.

[0012] As a further improvement of the present invention, a positioning boss is provided on the lower surface of the limiting member, and a step opening for inserting the positioning boss is provided on the inner bottom surface of the outlet base.

[0013] As a further improvement of the present invention, the bottom edge of the inlet seat is provided with a mounting sleeve that can be sleeved on the outside of the outlet base, and the inner wall of the mounting sleeve and the outer wall of the outlet base are threadedly connected.

[0014] As a further improvement of the present invention, at least two liquid inlets communicating with the liquid inlet channel are provided on the side wall of the inlet seat.

[0015] As a further improvement of the present invention, the middle sections of the dispersion groove and the confluence groove are both serpentine.

[0016] As a further improvement of the present invention, there are 8 mixing units, and a partition sheet coaxially arranged with the outlet base is provided between 4 mixing units, and a mixing flow channel is provided at the axis of the partition sheet.

[0017] Beneficial Effects

[0018] Compared with the prior art, the advantages of a static liquid high-pressure mixer of the present invention are:

[0019] 1. In the mixer, the mixing unit, which is the core of the mixing work, is composed of only three standard mixing sheets stacked together, namely, a barrier sheet, a dispersion sheet and a confluence sheet. Therefore, compared with the mixing unit in the prior art which is composed of different mixing sheets, the types of mixing sheets in the mixing unit are greatly reduced, thereby simplifying the structure of the mixing unit and avoiding the problem of mixing sheet confusion when assembling the mixing unit.

[0020] In the mixer, when the liquid flows through the mixing unit, the liquid passes through the blocking plate, the dispersion plate and the converging plate in sequence. In this process, the liquid is axially input through the mixing flow channel on the blocking plate, and will first be radially diverted through the dispersion groove, and then radially converge through the annular groove and the converging groove, and finally flow out axially from the mixing flow channel of the converging plate; thus, by setting up multiple mixing units, the liquid entering the mixer can be repeatedly broken up, diverted and then converged, and multiple flow direction changes can be achieved in this process, thereby ensuring that the liquid is fully mixed and its mixing efficiency is guaranteed.

[0021] The present invention will become more apparent from the following description taken in conjunction with the accompanying drawings, which are used to illustrate embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A perspective view of the present invention;

[0024] Figure 2 It is an axial exploded view of the present invention;

[0025] Figure 3 is an axial cross-sectional view of the inlet seat of the present invention;

[0026] Figure 4 is a radial cross-sectional view of the inlet seat of the present invention;

[0027] Figure 5 is an axial cross-sectional view of the sealing gasket of the present invention;

[0028] Figure 6 is an axial cross-sectional view of a first filling sheet of the present invention;

[0029] Figure 7 It is an axial cross-sectional view of a plurality of positioning plates of the present invention when they are stacked;

[0030] Figure 8 It is an axial cross-sectional view of eight mixing units of the present invention when stacked;

[0031] Fig. 9 is an axial cross-sectional view of a second filling sheet of the present invention;

[0032] Fig.10 is an axial cross-sectional view of the position limiting member of the present invention;

[0033] Fig.11is an axial cross-sectional view of the outlet base of the present invention;

[0034] Fig.12 An axial exploded view of the mixing unit of the present invention;

[0035] Fig.13 A radial view of a dispersible tablet of the present invention;

[0036] Fig.14 It is a radial view of the busbar of the present invention.

[0037] Among them: 1-inlet seat; 11-installing sleeve; 12-liquid inlet; 13-liquid inlet channel; 2-sealing gasket; 21-gasket flow channel; 3-mixing unit; 31-first filling piece; 32-positioning piece; 33-blocking piece; 34-dispersion piece; 341-dispersion groove; 342-flow port; 35-convergence piece; 351-convergence groove; 352-annular groove; 36-separation piece; 37-second filling piece; 38-mixing flow channel; 4-limiting piece; 41-limiting piece flow channel; 5-outlet base; 51-liquid outlet channel. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; of course, it can also be a mechanical connection or an electrical connection; in addition, it can also be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Embodiments of the present invention will now be described with reference to the accompanying drawings.

[0041] Example

[0042] The specific embodiments of the present invention are as follows Figure 1-14As shown, a static liquid high-pressure mixer includes an outlet base 5 with a barrel-shaped structure and an opening facing upward, and a liquid outlet channel 51 is provided at the axis center of the bottom of the outlet base 5. An inlet seat 1 is coaxially mounted on the upper part of the outlet base 5, and a liquid inlet channel 13 extending to the inside of the inlet seat 1 is provided at the axis center of the bottom surface of the inlet seat 1. Specifically: in order to achieve the connection between the inlet seat 1 and the outlet base 5, a mounting sleeve 11 that can be sleeved on the outside of the outlet base 5 is provided at the bottom edge of the inlet seat 1, and the inner wall of the mounting sleeve 11 and the outer wall of the outlet base 5 are threadedly connected. With such a design, the disassembly / assembly between the inlet seat 1 and the outlet base 5 can be achieved very conveniently.

[0043] In this embodiment, in order to input the liquid to be mixed, at least two liquid inlets 12 connected to the liquid inlet channel 13 are provided on the side wall of the inlet seat 1. The two liquids input from the liquid inlet 12 can achieve the first confluence and mixing in the liquid inlet channel 13. Of course, in the actual production process, the inlet seat 1 with the corresponding number of liquid inlets 12 can be selected according to the type of liquid to be mixed, and the inlet seat 1 can be replaced through the threaded connection between the inlet seat 1 and the outlet base 5.

[0044] In the mixer, in order to achieve mixing of the incoming liquid, a plurality of mixing units 3 are coaxially arranged in the outlet base 5 and arranged in sequence along the liquid flow direction. The mixing unit 3 includes a blocking sheet 33, a dispersion sheet 34 and a converging sheet 35 coaxially stacked in sequence along the liquid flow direction. In this embodiment, a dispersion sheet 34 and a converging sheet 35 are stacked to form a mixing sheet combination. In the actual production process, in order to further improve the mixing efficiency, more than one mixing sheet combination can be set in each mixing unit 3 to form a structure of "blocking sheet 33+mixing sheet group a+mixing sheet combination b+..."

[0045] Among them, regarding the specific structure of the mixing unit 3: the axis of the blocking plate 33 and the confluence plate 35 are penetrated by a mixing channel 38. A plurality of dispersion grooves 341 are provided on the surface of the inlet side of the dispersion plate 34, one end of the plurality of dispersion grooves 341 converges at the axis of the dispersion plate 34, and the other end diverges toward the edge of the dispersion plate 34 and is provided with a flow port 342 that penetrates the dispersion plate 34. An annular groove 352 is provided on the surface of the inlet side of the confluence plate 35, which is arranged around its axis and corresponds to the flow port 342. The annular groove 352 is connected to the mixing channel 38 at the axis of the confluence plate 35 through a plurality of confluence grooves 351 provided on the surface of the inlet side of the confluence plate 35.

[0046] When in use, the liquid to be mixed is transported from the liquid inlet 12 to the inlet seat 1, and the initial mixing and confluence is achieved in the liquid inlet channel 13; then, the preliminarily mixed liquid flows into the mixing unit 3 for further mixing - in this process, the liquid is axially input through the mixing channel 38 on the blocking plate 33, first radially diverted through the dispersion groove 341 of the dispersion plate 34, and flows to the confluence plate 35 through the flow port 342, and then radially converges through the annular groove 352 and the confluence groove 351 of the confluence plate 35, and finally flows out axially from the mixing channel 38 of the confluence plate 35; finally, the liquid that has been repeatedly broken up, diverted and then converged by multiple mixing units 3 is output from the mixer through the liquid outlet channel 51 on the outlet base 5, completing the entire mixing process.

[0047] In the mixer, the mixing unit 3 as the core of the mixing work is only composed of three standard mixing sheets stacked together, namely, a blocking sheet 33, a dispersing sheet 34 and a converging sheet 35. Therefore, compared with the mixing unit composed of different mixing sheets in the prior art, the types of mixing sheets in the mixing unit are greatly reduced, thereby simplifying the structure of the mixing unit and avoiding the problem of mixing sheet confusion when assembling the mixing unit 3.

[0048] In the mixer, when the liquid flows through the mixing unit 3, the liquid passes through the blocking piece 33, the dispersing piece 34 and the converging piece 35 in sequence. In this process, the liquid is axially input through the mixing flow channel 38 on the blocking piece 33, and will first be radially diverted through the dispersing groove 341, then radially converged through the annular groove 352 and the converging groove 351, and finally axially flows out from the mixing flow channel 38 of the converging piece 35. Therefore, by setting a plurality of mixing units 3, the liquid entering the mixer can be repeatedly dispersed, diverted and then converged, and multiple flow direction changes can be achieved in this process, so as to ensure that the liquid is fully mixed and its mixing efficiency is guaranteed.

[0049] In the mixer, the outlet base 5 is also coaxially provided with a first filling piece 31 and a second filling piece 37, and a mixing flow channel 38 is provided through the axis of the first filling piece 31 and the second filling piece 37. A plurality of mixing units 3 are arranged between the first filling piece 31 and the second filling piece 37. At the same time, a plurality of positioning pieces 32 are provided between the first filling piece 31 and the mixing unit 3 and are coaxially stacked in sequence along the liquid flow direction. A mixing flow channel 38 is provided at the axis of the positioning piece 32. The liquid flowing out of the liquid inlet channel 13 can enter the mixing unit 3 through the first filling piece 31, the second filling piece 37 and the mixing flow channel 38 on the positioning piece 32.

[0050] In this embodiment, a sealing gasket 2 is coaxially arranged between the first filling piece 31 and the bottom surface of the inlet seat 1, and a gasket flow channel 21 is provided through the axis of the sealing gasket 2. The sealing gasket 2 is a non-metallic material support 2 with a certain elasticity, and the sealing gasket 2 and the first filling piece 31, and the sealing gasket 2 and the bottom surface of the inlet seat 1 are all tightly sealed.

[0051] At the same time, a stopper 4 with a barrel-shaped structure and an opening facing upward is coaxially inserted in the outlet base 5, and a stopper flow channel 41 is provided at the bottom axis of the stopper 4. The sealing pad 2, the first filling piece 31, the positioning piece 32, the mixing unit 3, and the second filling piece 37 are all installed in the stopper 4, and each component is in sealed contact with the stopper 4. In this embodiment, a positioning boss is provided on the lower surface of the stopper 4, and a step opening for inserting the positioning boss is provided on the inner bottom surface of the outlet base 5. Such a design can facilitate the positioning and installation of the stopper 4.

[0052] In addition, regarding the shapes of the dispersion grooves 341 and the confluence grooves 351, the middle sections of the dispersion grooves 341 and the confluence grooves 351 are both serpentine. With such a design, the flow direction of the liquid can be further changed multiple times during the flow process, thereby improving the liquid mixing effect. In this embodiment, there are six dispersion grooves 341, and they are arranged rotationally symmetrically around the axis of the dispersion sheet 34; similarly, there are six confluence grooves 351, which are also arranged rotationally symmetrically around the axis of the confluence sheet 35.

[0053] It should be noted that:

[0054] There are eight mixing units 3 in this embodiment, and a partition sheet 36 coaxially arranged with the outlet base 5 is provided between four mixing units 3. In addition, a mixing flow channel 38 is also provided at the axis of the partition sheet 36.

[0055] The present invention has been described above in conjunction with the best embodiments, but the present invention is not limited to the embodiments disclosed above, but should cover various modifications and equivalent combinations based on the essence of the present invention.

Claims

1. A static liquid high-pressure mixer, comprising an outlet base (5) of a barrel-shaped structure with an opening facing upward, and a liquid outlet channel (51) is provided through the axis of the bottom of the outlet base (5), an inlet base (1) is coaxially mounted on the upper part of the outlet base (5), and a liquid inlet channel (13) extending into the interior of the inlet base (1) is provided at the axis of the bottom surface of the inlet base (1), characterized in that: A plurality of mixing units (3) are coaxially arranged in the outlet base (5) and arranged in sequence along the liquid flow direction. The mixing unit (3) comprises a blocking sheet (33), a dispersing sheet (34) and a converging sheet (35) which are coaxially arranged and stacked in sequence along the liquid flow direction. A mixing flow channel (38) is provided through the axis of each of the blocking sheet (33) and the converging sheet (35); A plurality of dispersion grooves (341) are provided on the inlet side surface of the dispersion piece (34), one end of the plurality of dispersion grooves (341) converges at the axis of the dispersion piece (34), and the other end diverges toward the edge of the dispersion piece (34) and is provided with a flow port (342) penetrating the dispersion piece (34); an annular groove (352) arranged around the axis and corresponding to the flow port (342) is provided on the inlet side surface of the converging piece (35); the annular groove (352) is communicated with the mixing flow channel (38) at the axis of the converging piece (35) through a plurality of converging grooves (351) provided on the inlet side surface of the converging piece (35).

2. The static liquid high pressure mixer according to claim 1, characterized in that: A first filling piece (31) and a second filling piece (37) are coaxially arranged in the outlet base (5), and a mixing flow channel (38) is provided through the axis of the first filling piece (31) and the second filling piece (37), and the plurality of mixing units (3) are arranged between the first filling piece (31) and the second filling piece (37).

3. The static liquid high pressure mixer according to claim 2, characterized in that: A plurality of positioning sheets (32) are arranged between the first filling sheet (31) and the mixing unit (3) and are stacked in sequence coaxially along the liquid flow direction. A mixing flow channel (38) is provided at the axis of the positioning sheet (32).

4. The static liquid high pressure mixer according to claim 3, characterized in that: A sealing gasket (2) coaxially arranged with the first filling piece (31) and the bottom surface of the inlet seat (1) is provided between the two, and a gasket flow channel (21) runs through the axis of the sealing gasket (2). The sealing gasket (2) and the first filling piece (31), as well as the sealing gasket (2) and the bottom surface of the inlet seat (1) are tightly sealed.

5. The static liquid high pressure mixer according to claim 4, characterized in that: A stopper (4) having a barrel-shaped structure and an opening facing upward is coaxially inserted into the outlet base (5), and a stopper flow channel (41) is provided at the bottom axis of the stopper (4), and the sealing gasket (2), the first filling piece (31), the positioning piece (32), the mixing unit (3), and the second filling piece (37) are all installed in the stopper (4).

6. The static liquid high pressure mixer according to claim 5, characterized in that: A positioning boss is provided on the lower surface of the limiting member (4), and a step opening for inserting the positioning boss is provided on the inner bottom surface of the outlet base (5).

7. The static liquid high pressure mixer according to claim 1, characterized in that: The bottom edge of the inlet seat (1) is provided with a mounting sleeve (11) which can be sleeved on the outside of the outlet base (5), and the inner wall of the mounting sleeve (11) and the outer wall of the outlet base (5) are threadedly connected.

8. The static liquid high pressure mixer according to claim 1, characterized in that: At least two liquid inlets (12) communicating with the liquid inlet channel (13) are provided on the side wall of the inlet seat (1).

9. The static liquid high pressure mixer according to claim 1, characterized in that: The middle sections of the dispersion groove (341) and the confluence groove (351) are both serpentine.

10. The static liquid high-pressure mixer according to any one of claims 1 to 9, characterized in that: There are eight mixing units (3), and a partition sheet (36) coaxially arranged with the outlet base (5) is provided between four of the mixing units (3), and a mixing flow channel (38) is provided at the axis of the partition sheet (36).

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