Static mixing unit and static mixer

Abstract

The present invention discloses a static mixing unit and a static mixer, the static mixing unit comprises an inflow chamber, a first dispersion chamber, a first collecting channel, a collecting ring, a partition plate, an inflow port and an outflow port, one end of the inflow chamber is connected to the inflow port, the other end of the inflow chamber is separated from the outflow port by the partition plate, the first collecting channel is arranged around the inflow chamber, a plurality of the first dispersion chambers are connected to the inflow chamber and the first collecting channel, the collecting ring is arranged on the side of the partition plate away from the inflow chamber and is connected to the first collecting channel and the outflow port; the static mixer comprises the static mixing unit. The present invention disperses and mixes the flow through the dispersion chamber and the collecting channel, thereby shortening the fluid mixing stroke and mixing time.

Description

Technical Field

[0001] The present invention relates to the technical field of fluid mixers, and in particular to a static mixing unit and a static mixer. Background Art

[0002] In actual production activities, two materials are quickly mixed, and the common processing method is to use mechanical stirring equipment. Due to the many shortcomings of mechanical stirring equipment, such as large size, low efficiency, cumbersome operation, and high energy consumption, people are actively looking for a mixing equipment that can replace mechanical stirring. Static mixers for mixing came into being. However, in many cases, traditional static mixers cannot meet production requirements. For example, when the mixing effect of the fluid is required to be high, it is necessary to increase the number of mixing elements. The increase in the number of mixing elements not only increases the difficulty of mixer processing and manufacturing, but also increases the residence time and pressure drop of the fluid in the mixer. In many occasions where rapid mixing is required, traditional static mixers are powerless. When the mixing time of the fluid is required to be shorter, the mixing length of the mixer needs to be shortened. The shortening of the mixing length leads to a reduction in mixing elements, which affects the mixing effect of the fluid and cannot meet production requirements. Summary of the invention

[0003] The object of the present invention is to provide a static mixing unit and a static mixer to shorten the fluid mixing stroke and mixing time.

[0004] In order to achieve the above-mentioned objectives, the present invention provides a static mixing unit, comprising: an inflow chamber, a first dispersion chamber, a first collecting channel, a collecting ring, an isolation plate, an inlet and an outlet, one end of the inflow chamber is connected to the inlet, and the other end of the inflow chamber is separated from the outlet by the isolation plate, the first collecting channel is arranged around the inflow chamber, a plurality of the first dispersion chambers connect the inflow chamber and the first collecting channel, and the collecting ring is arranged on the side of the isolation plate away from the inflow chamber and connects the first collecting channel and the outlet.

[0005] Optionally, the first dispersion chamber is a truncated cone inner chamber, the first dispersion chamber comprises a first upper bottom circle close to the inflow chamber and a first lower bottom circle away from the inflow chamber, and the diameter of the first upper bottom circle is smaller than the diameter of the first lower bottom circle.

[0006] Optionally, the cone angle of the first dispersion chamber is 6-15°.

[0007] Optionally, the height of the truncated cone of the first dispersion cavity is 8-15 times the diameter of the first upper bottom circle.

[0008] Optionally, a second collecting channel is arranged around the first collecting channel, the first collecting channel and the second collecting channel are connected through a plurality of second dispersion chambers, and the collecting ring is connected with the first collecting channel via the second collecting channel and the second dispersion chamber in sequence.

[0009] Optionally, the second dispersion cavity is a truncated cone inner cavity, the second dispersion cavity includes a second upper bottom circle close to the inflow cavity and a second lower bottom circle away from the inflow cavity, and the area of ​​the second upper bottom circle is smaller than that of the first upper bottom circle.

[0010] Optionally, reinforcing ribs are provided in the collecting ring, and a plurality of the reinforcing ribs are arranged along the circumference of the outflow port to form a plurality of fan-shaped radial flow channels.

[0011] The present invention further provides a static mixer, comprising at least one static mixing unit as described above, wherein the static mixing unit is provided with a protective shell, and the inlet and the outlet extend outside the protective shell.

[0012] Optionally, the static mixer includes a plurality of static mixing units, and the outlet of a preceding static mixing unit is connected to the inlet of a succeeding static mixing unit.

[0013] Optionally, the multiple static mixing units are connected by threaded connection, welding connection or bonding connection.

[0014] The present invention provides a static mixing unit and a static mixer, the static mixing unit comprises an inflow chamber, a first dispersion chamber, a first collecting channel, a collecting ring, a partition plate, an inflow port and an outflow port, one end of the inflow chamber is connected to the inflow port, the other end of the inflow chamber is separated from the outflow port by the partition plate, the first collecting channel is arranged around the inflow chamber, a plurality of the first dispersion chambers are connected to the inflow chamber and the first collecting channel, the collecting ring is arranged on the side of the partition plate away from the inflow chamber and is connected to the first collecting channel and the outflow port; the static mixer comprises the static mixing unit. The present invention disperses and mixes the flow through the dispersion chamber and the collecting channel, thereby shortening the fluid mixing stroke and mixing time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of a static mixing unit provided by an embodiment of the present invention;

[0016] Figure 2 is a schematic diagram of a dispersion chamber provided by an embodiment of the present invention;

[0017] Figure 3 is a schematic diagram of a collection ring provided by an embodiment of the present invention;

[0018] Figure 4It is a schematic diagram of a static mixer provided in one embodiment of the present invention.

[0019] Among them: 1-inflow chamber, 2-first dispersion chamber, 201-first upper bottom circle, 202-first lower bottom circle, 3-first collecting channel, 4-second dispersion chamber, 5-second collecting channel, 6-inflow port, 7-outflow port, 8-collecting ring, 801-radial flow channel, 802-reinforcement rib, 9-isolation plate, 10-static mixing unit, 20-protective shell. DETAILED DESCRIPTION

[0020] The specific implementation of the present invention will be described in more detail below in conjunction with the schematic diagram. The advantages and features of the present invention will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in exact proportions, and are only used to facilitate and clearly assist in explaining the purpose of the embodiments of the present invention.

[0021] Figure 1 is a schematic diagram of a static mixing unit provided by an embodiment of the present invention, see Figure 1 As shown, the static mixing unit comprises: an inflow chamber 1, a first dispersion chamber 2, a first collection channel 3, a collection ring 8, a partition plate 9, an inflow port 6 and an outflow port 7. The inflow chamber 1 is a cylindrical chamber. One end of the inflow chamber 1 is connected to the inflow port 6. The other end of the inflow chamber 1 is separated from the outflow port 7 by the partition plate 9. The inflow port 6 and the outflow port 7 are both cylindrical pipes. The first collection channel 3 is arranged around the inflow chamber 1. The first collection channel 3 is an annular chamber with a rectangular cross section. A plurality of the first dispersion chambers 2 are connected to the inflow chamber 1 and the first collection channel 3. The first dispersion chambers 2 are evenly distributed along the circumferential direction of the inflow chamber 1. The collection ring 8 is arranged on the side of the partition plate 9 away from the inflow chamber 1 and connects the first collection channel 3 and the outflow port 7. Obviously, there is a shell outside the first collection channel 3, and there is also a shell on the side of the collection ring 8 away from the partition plate 9 to form a chamber.

[0022] Figure 2 is a schematic diagram of a dispersion chamber provided by an embodiment of the present invention, see Figure 1 and Figure 2As shown, the first dispersion chamber 2 is an inner chamber that diffuses from the inflow chamber 1 to the first collection channel 3. The first dispersion chamber 2 is a truncated cone inner chamber, a trumpet-shaped inner chamber, and other diffused inner chambers. The preferred shape of the first dispersion chamber 2 in this embodiment is a truncated cone inner chamber. The first dispersion chamber 2 includes a first upper bottom circle 201 close to the inflow chamber 1 and a first lower bottom circle 202 away from the inflow chamber. The diameter of the first upper bottom circle 201 is smaller than the diameter of the first lower bottom circle 202. The cone angle β of the first dispersion chamber is 6-15°, and the truncated cone height of the first dispersion chamber 2 is 8-15 times the diameter of the first upper bottom circle 201.

[0023] For further information, see Figure 1 and Figure 2 As shown, a second collecting channel 5 is arranged around the first collecting channel 3, and the first collecting channel 3 and the second collecting channel 5 are connected through a plurality of second dispersion chambers 4. According to the same principle, the second collecting channel 5 can also be provided with a third collecting channel, a fourth collecting channel, etc., and the number of nested layers is not limited. In this embodiment, there are three second dispersion chambers 4 along the axial direction of the inflow chamber 1. Along the circumferential direction of the inflow chamber 1, the number of the second dispersion chambers 4 is greater than the number of the first dispersion chambers 2, for example, there are six first dispersion chambers 2 and twelve second dispersion chambers 4. The first collecting channel 3 is separated from the collecting ring 8, and the second collecting channel 5 is connected to the collecting ring 8. The second dispersion chamber 4 is also a truncated cone inner cavity, and the second dispersion chamber 4 includes a second upper bottom circle close to the inflow chamber 1 and a second lower bottom circle away from the inflow chamber, and the area of ​​the second upper bottom circle is less than half of the area of ​​the first upper bottom circle 201.

[0024] Figure 3 is a schematic diagram of a collection ring provided by an embodiment of the present invention, see Figure 1-Figure 3 As shown, reinforcing ribs 802 are arranged in the collecting ring 8 , and a plurality of the reinforcing ribs 802 are arranged circumferentially along the outflow port 7 to form a plurality of fan-shaped radial flow channels 801 , and the radial flow channels 801 connect the second collecting channel 5 and the outflow port 7 .

[0025] The fluid enters the inflow chamber 1 through the inlet 6, is dispersed into the first collecting channel 3 through the first dispersion chamber 2, is further dispersed into the second collecting channel 5 through the second dispersion chamber 4, and then converges into the radial flow channel 801 from the second collecting channel 5, and finally enters the outlet 7. The fluid is dispersed and collected, and is fully mixed in a short time and short stroke. As a person skilled in the art, it is easy to understand that the static mixing unit 10 can be applied to liquid-gas mixing, liquid-liquid mixing, liquid-powder mixing, etc.

[0026] Figure 4is a schematic diagram of a static mixer provided by an embodiment of the present invention, see Figure 4 As shown, the present invention also provides a static mixer, the static mixer includes at least one static mixing unit 10, and a single static mixing unit 10 is directly used as a static mixer. The static mixing unit 10 is provided with a protective shell 20, and the inlet 6 and the outlet 7 extend outside the protective shell 20. When the static mixer includes more than two static mixing units 10, the static mixing units 10 are used in series, that is, the outlet 7 of the previous static mixing unit 10 is connected to the inlet 6 of the next static mixing unit. Multiple static mixing units are connected by threaded connection, straight plug sealing connection, quick connection, welding connection or bonding connection.

[0027] In summary, in a static mixing unit and a static mixer provided in one embodiment of the present invention, the static mixing unit includes an inflow chamber, a first dispersion chamber, a first collecting channel, a collecting ring, a partition plate, an inflow port and an outflow port, one end of the inflow chamber is connected to the inflow port, the other end of the inflow chamber is separated from the outflow port by the partition plate, the first collecting channel is arranged around the inflow chamber, a plurality of the first dispersion chambers are connected to the inflow chamber and the first collecting channel, the collecting ring is arranged on the side of the partition plate away from the inflow chamber and is connected to the first collecting channel and the outflow port; the static mixer includes the static mixing unit. The present invention disperses and mixes the flow through the dispersion chamber and the collecting channel, thereby shortening the fluid mixing stroke and mixing time.

[0028] The above is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any technician in the relevant technical field, without departing from the scope of the technical solution of the present invention, makes any form of equivalent replacement or modification to the technical solution and technical content disclosed in the present invention, which does not depart from the content of the technical solution of the present invention and still falls within the protection scope of the present invention.

Claims

1. A static mixing unit, characterized in that: include: An inflow chamber, a first dispersion chamber, a first collecting channel, a collecting ring, a separation plate, an inflow port and an outflow port, wherein one end of the inflow chamber is connected to the inflow port, and the other end of the inflow chamber is separated from the outflow port by the separation plate, the first collecting channel is arranged around the inflow chamber, a plurality of the first dispersion chambers are connected to the inflow chamber and the first collecting channel, and the collecting ring is arranged on the side of the separation plate away from the inflow chamber and is connected to the first collecting channel and the outflow port; The first dispersion cavity is a truncated cone inner cavity, and the first dispersion cavity includes a first upper bottom circle close to the inflow cavity and a first lower bottom circle far from the inflow cavity, and the diameter of the first upper bottom circle is smaller than the diameter of the first lower bottom circle; A second collecting channel is arranged around the first collecting channel, the first collecting channel and the second collecting channel are connected through a plurality of second dispersion cavities, and the collecting ring is connected with the first collecting channel through the second collecting channel and the second dispersion cavity in sequence; The collecting ring is provided with reinforcing ribs, and a plurality of the reinforcing ribs are arranged along the circumference of the outflow port to form a plurality of fan-shaped radial flow channels.

2. The static mixing unit according to claim 1, characterized in that The cone angle of the first dispersion chamber is 6-15°.

3. The static mixing unit according to claim 1, characterized in that The height of the truncated cone of the first dispersion cavity is 8-15 times the diameter of the first upper bottom circle.

4. The static mixing unit according to claim 1, characterized in that The second dispersion cavity is a truncated cone inner cavity, and the second dispersion cavity includes a second upper bottom circle close to the inflow cavity and a second lower bottom circle away from the inflow cavity, and the area of ​​the second upper bottom circle is smaller than that of the first upper bottom circle.

5. A static mixer, characterized in that: The invention comprises at least one static mixing unit according to any one of claims 1 to 4, wherein the static mixing unit is provided with a protective shell, and the inlet and the outlet extend outside the protective shell. 6 . The static mixer according to claim 5 , comprising a plurality of static mixing units, wherein an outlet of a preceding static mixing unit is connected to an inlet of a succeeding static mixing unit.

7. The static mixer according to claim 5, wherein the plurality of static mixing units are connected by threaded connection, welding connection, adhesive connection or quick connection.

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