Liquid mixer

Abstract

According to the liquid mixer, each inflow channel is communicated with a first cylindrical cavity and tangentially extends from the first cylindrical cavity along an axial vertical plane, and a first outflow channel is communicated with the center of a second axial end wall of the first cylindrical cavity; the first outflow channel is communicated with the center of the third shaft end wall of the second cylindrical cavity, the central axis of each annular partition plate coincides with the central axis of the second cylindrical cavity, and the first annular partition plate protrudes from the fourth shaft end wall of the second cylindrical cavity in the axial direction and is spaced from the third shaft end wall of the second cylindrical cavity in the axial direction. The second annular partition plate protrudes from the third shaft end wall of the second cylindrical cavity in the axial direction, an axial interval is formed between the second annular partition plate and the fourth shaft end wall of the second cylindrical cavity, and the first annular partition plate and the second annular partition plate are alternately arranged from the inner circumferential side to the outer circumferential side so that a rotary channel can be separated in the second cylindrical cavity. The multiple second outflow channels communicate with the tail end, on the peripheral side, of the rotary channel and are evenly distributed in the circumferential direction.

Description

TECHNICAL FIELD

[0001] The present application relates to a mixer, in particular to a mixer for mixing multiple liquids. BACKGROUND

[0002] According to the requirements of the engine propulsion system of civil aircraft in China for the type of fuel, the engine should be able to work under the condition of multiple main fuels and their arbitrary mixtures. Therefore, the combustion chamber tester should be equipped with a multiple fuel supply system, with test capabilities covering sustainable aviation fuel (SAF) and multiple grades of aviation kerosene such as RP-3, JET A, TC-1, etc., to meet the requirements of combustion chamber component-level verification. Currently, the performance of the combustion chamber of multiple liquid fuels is studied, which is usually according to the design requirements to mix the fuel in proportion in advance, inject it into the fuel tank of the fuel system or directly supply it to the original equipment fuel system through a tank car, and then conduct combustion chamber performance test research with fixed fuel ratio. But the most flexible, time-saving and labor-saving way to study the performance of the combustion chamber under the condition of two fuels and their arbitrary mixtures, such as combustion efficiency, ignition characteristics, stable combustion characteristics and pollution emission characteristics, is to adjust the mixing ratio of the two fuels online. In order to adjust the mixing ratio of the two fuels, not only a multiple fuel supply system needs to be configured, but also a mixer that meets the mixing requirements of the two fuels needs to be provided. The mixing effect of the fuel mixer directly affects the simulation authenticity of the nozzle inlet parameters and has an important influence on the test results of the combustion chamber. SUMMARY

[0003] The purpose of the present application is to provide a liquid mixer for improving the mixing effect of multiple fuels.

[0004] According to embodiments of the present application, the liquid mixer comprises a first mixing chamber and a second mixing chamber; the first mixing chamber comprises a first cylindrical chamber, a first outflow channel and a plurality of inflow channels, each of the inflow channels communicates with a sidewall of a first axial end portion of the first cylindrical chamber and extends tangentially from the first axial end portion along an axial plane of the first cylindrical chamber, the first outflow channel communicates with a center of a second axial end wall of the first cylindrical chamber, liquid flowed from the inflow channels is mixed by circumferential rotation in the first cylindrical chamber and then flows out through the first outflow channel; the second mixing chamber comprises a second cylindrical chamber, a plurality of circular ring-shaped partitions and a plurality of second outflow channels, the first outflow channel communicates with a center of a third axial end wall of the second cylindrical chamber, a central axis of each of the circular ring-shaped partitions coincides with a central axis of the second cylindrical chamber, the plurality of circular ring-shaped partitions comprises a first circular ring-shaped partition and a second circular ring-shaped partition, the first circular ring-shaped partition protrudes axially from a fourth axial end wall of the second cylindrical chamber and has an axial interval with the third axial end wall of the second cylindrical chamber, the second circular ring-shaped partition protrudes axially from the third axial end wall of the second cylindrical chamber and has an axial interval with the fourth axial end wall of the second cylindrical chamber, the first circular ring-shaped partition and the second circular ring-shaped partition are alternately arranged from an inner circumferential side to an outer circumferential side so as to divide a rotation channel in the second cylindrical chamber, the plurality of second outflow channels communicates with ends of the rotation channel on the outer circumferential side and are distributed circumferentially, liquid flowed from the first outflow channel into the second cylindrical chamber is mixed by vortex in the rotation channel and then flows out through the second outflow channels.

[0005] In one or more embodiments, each of the inflow channels communicates with a sidewall of the first axial end portion of the first cylindrical chamber, the first axial end portion of the first cylindrical chamber is located on an axially opposite side of the second axial end wall of the first cylindrical chamber.

[0006] In one or more embodiments, the plurality of inflow channels are distributed circumferentially in the first cylindrical chamber.

[0007] In one or more embodiments, among the plurality of circular ring-shaped partitions of the second cylindrical chamber, the first circular ring-shaped partition is located on the innermost circumferential side and an axial projection of the first circular ring-shaped partition to the third axial end wall of the second cylindrical chamber is greater than and covers an outlet of the first outflow channel.

[0008] In one or more embodiments, among the plurality of annular partitions of the second cylindrical chamber, the first annular partition is located at the outermost circumferential side, the end of the rotary channel is located between the sidewall of the second cylindrical chamber and the first annular partition at the outermost circumferential side, and the plurality of second outflow channels are located between the sidewall of the second cylindrical chamber and the first annular partition at the outermost circumferential side and are circumferentially distributed on the fourth axial end wall of the second cylindrical chamber.

[0009] In one or more embodiments, the liquid mixer further comprises a third mixing chamber, the third mixing chamber comprising a third cylindrical chamber and a third outflow channel, the plurality of second outflow channels communicating with a fifth axial end wall of the third cylindrical chamber and being circumferentially distributed, and the third outflow channel communicating with the center of a sixth axial end wall of the third cylindrical chamber, liquid flowing from the second outflow channels into the third cylindrical chamber being mixed in the third cylindrical chamber and then flowing out through the third outflow channel.

[0010] In one or more embodiments, the central axes of the first cylindrical chamber, the second cylindrical chamber, and the third cylindrical chamber coincide.

[0011] In one or more embodiments, the fourth axial end wall of the second cylindrical chamber and the fifth axial end wall of the third cylindrical chamber are a second partition wall, the second partition wall separating the second cylindrical chamber and the third cylindrical chamber, and each of the second outflow channels is a second outflow hole axially penetrating the second partition wall.

[0012] In one or more embodiments, the second axial end wall of the first cylindrical chamber and the third axial end wall of the second cylindrical chamber are a first partition wall, the first partition wall separating the first cylindrical chamber and the second cylindrical chamber, and the first outflow channel is a first outflow hole axially penetrating the first partition wall.

[0013] In one or more embodiments, the second axial end wall of the first cylindrical chamber serves as the bottom wall of the first cylindrical chamber, the fourth axial end wall of the second cylindrical chamber serves as the bottom wall of the second cylindrical chamber, and the sixth axial end wall of the third cylindrical chamber serves as the bottom wall of the third cylindrical chamber.

[0014] Embodiments of the present application have at least one of the following beneficial effects:

[0015] The jet flow of the liquid to be mixed flows into the first cylindrical chamber from the inflow channel in a tangential direction, rotates circumferentially under the guidance of the arc-shaped inner side wall of the first cylindrical chamber to form a cyclone, so that the multiple liquids to be mixed collide, shear, break, recombine and convolute in the first cylindrical chamber, increase the contact area of the liquids to be mixed, promote the mixing of the liquids to be mixed, and improve the mixing effect. The liquid flowing from the first outflow channel flows from the center to the outer periphery of the second cylindrical chamber. In the radial direction, the liquid flows in an S shape around the first and second circular ring-shaped partitions alternately along the return channel, so that turbulent flow and vortex are generated, mixing is promoted, and the mixing effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] The above and other features, properties, and advantages of the present application will become more apparent by referring to the following description in conjunction with the accompanying drawings, in which:

[0017] Figure 1 It is a perspective view of a liquid mixer according to an embodiment of the present application.

[0018] Figure 2 It is a perspective view of a liquid mixer according to an embodiment of the present application.

[0019] Figure 3 It is a sectional view of a liquid mixer according to an embodiment of the present application.

[0020] Figure 4 It is a sectional view of a liquid mixer according to an embodiment of the present application. Figure 3

[0021] Reference Signs:

[0022] 1 - Liquid mixer.

[0023] 2 - First mixing chamber.

[0024] 21 - First cylindrical chamber.

[0025] 22 - First outflow channel.

[0026] 23 - Inflow channel.

[0027] 24 - Second axial end wall.

[0028] 25 - First axial end wall.

[0029] 26 - First outflow hole.

[0030] 3 - Second mixing chamber.

[0031] 31 - Second cylindrical chamber.

[0032] 32 - Circular ring-shaped partition.

[0033] 321 - First circular ring-shaped partition.​

[0034] 322 - Second annular partition.

[0035] 33 - Second outflow channel.

[0036] 34 - Third shaft end wall.

[0037] 35 - Fourth shaft end wall.

[0038] 36 - Rotary channel.

[0039] 37 - Second outlet hole.

[0040] 4-Third mixing chamber.

[0041] 41 - Third cylindrical chamber.

[0042] 42 - Third outflow channel.

[0043] 43 - Fifth shaft end wall.

[0044] 44 - Sixth shaft end wall.

[0045] 5-Second partition wall.

[0046] 6-First partition wall. Detailed Implementation

[0047] The present invention will be further described below with reference to specific embodiments and accompanying drawings. More details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention can obviously be implemented in many other ways different from those described herein. Those skilled in the art can make similar extensions and derivations based on actual application situations without departing from the spirit of the present invention. Therefore, the scope of protection of the present invention should not be limited by the content of this specific embodiment.

[0048] It should be noted that these and other accompanying drawings are merely examples and are not drawn to scale, and should not be construed as limiting the scope of protection of the present invention.

[0049] The terms “first”, “second”, etc., are used interchangeably to distinguish one feature from another and are not intended to indicate that each feature must be located in the position shown in the figure in each embodiment.

[0050] like Figures 1 to 4 As shown, the liquid mixer 1 is provided with a first mixing chamber 2 and a second mixing chamber 3.

[0051] like Figures 1 to 4 As shown, the first mixing chamber 2 is provided with a first cylindrical chamber 21, a first outflow channel 22 and multiple inflow channels 23. The first mixing chamber 2 is used for the first mixing of the liquid to be mixed.

[0052] It can be understood that the inflow channel 23 is both the inflow channel of the first mixing cavity 2 for the mixed liquid and the inflow channel of the liquid mixer 1 for the mixed liquid. Figures 1 to 4 In the embodiment shown, the first mixing cavity 2 can be provided with two inflow channels 23, each inflow channel 23 being used for the inflow of one kind of mixed liquid into the first cylindrical chamber 21, and the liquid mixer 1 being used for the mixing of two kinds of fuel. In another embodiment, the first mixing cavity 2 can be provided with other numbers of inflow channels 23, each inflow channel 23 being used for the inflow of one kind of mixed liquid into the first cylindrical chamber 21, and the liquid mixer 1 being used for the mixing of the corresponding number of kinds of fuel corresponding to the inflow channels 23.

[0053] As shown in Figure 4 , each inflow channel 23 communicates with the first cylindrical chamber 21 and extends tangentially from the first cylindrical chamber 21 along the axial plane, the extension direction of the inflow channel 23 being in the plane perpendicular to the central axis of the first cylindrical chamber 21 and being tangent to the inner side wall of the first cylindrical chamber 21, and the liquid flow direction of the inflow channel 23 being shown by arrows in Figures 1 to 4 .

[0054] As shown in Figures 2 to 4 , the first outflow channel 22 communicates with the center of the second axial end wall 24 of the first cylindrical chamber 21, the second axial end wall 24 of the first cylindrical chamber 21 being perpendicular to the central axis of the first cylindrical chamber 21 and being located at one axial end of the first cylindrical chamber 21, and the liquid flow direction of the first outflow channel 22 being shown by arrows in Figure 2 , Figure 3 .

[0055] As shown in Figures 2 to 4 , the liquid flowing into the first cylindrical chamber 21 from the inflow channel 23 flows out through the first outflow channel 22 after circumferential rotational flow mixing. The jet flow of the mixed liquid flows into the first cylindrical chamber 21 along the tangential direction of the first cylindrical chamber 21, rotates circumferentially under the guidance of the arc-shaped inner side wall of the first cylindrical chamber 21 to form a rotational flow, so that the mixed liquids collide, shear, break, recombine, convolute, increase the contact area of the mixed liquids, promote the mixing of the mixed liquids, and improve the mixing effect. In the aforementioned embodiment of two inflow channels 23, the greater the difference in the mixing ratio of the two kinds of fuel, the more conducive to mixing. After the first mixing in the first cylindrical chamber 21 is completed, the liquid flows out from the centrally located first outflow channel 22, which is adapted to the characteristics of the rotational flow field in the first cylindrical chamber 21, so that the liquid is smoothly discharged along the rotational axis direction, the outflow efficiency is improved, the flow field is prevented from being disordered, and the mixing effect is improved.

[0056] As shown in Figure 2 and Figure 3As shown, the second mixing chamber 3 is provided with a second cylindrical chamber 31, a plurality of annular partition plates 32, and a plurality of second outflow passages 33, and is used for second mixing.

[0057] As shown in Figure 2 and Figure 3 , the first outflow passage 22 communicates with the center of the third axial end wall 34 of the second cylindrical chamber 31, which is perpendicular to the central axis of the second cylindrical chamber 31 and located at one axial end of the second cylindrical chamber 31. Of course, the second cylindrical chamber 31 also has a fourth axial end wall 35, which is perpendicular to the central axis of the second cylindrical chamber 31 and located at the other axial end of the second cylindrical chamber 31, and the third axial end wall 34 and the fourth axial end wall 35 of the second cylindrical chamber 31 are respectively located at the two axial ends of the second cylindrical chamber 31.

[0058] As shown in Figure 2 and Figure 3 , the central axis of each annular partition plate 32 coincides with the central axis of the second cylindrical chamber 31, and the annular partition plate 32 is concentrically arranged with the second cylindrical chamber 31. The plurality of annular partition plates 32 includes a first annular partition plate 321 and a second annular partition plate 322, the first annular partition plate 321 protrudes axially from the fourth axial end wall 35 of the second cylindrical chamber 31 and has an axial interval with the third axial end wall 34 of the second cylindrical chamber 31,

[0059] the second annular partition plate 322 protrudes axially from the third axial end wall 34 of the second cylindrical chamber 31 and has an axial interval with the fourth axial end wall 35 of the second cylindrical chamber 31, and the first annular partition plate 321 and the second annular partition plate 322 are alternately arranged from the inner circumferential side to the outer circumferential side to divide the second cylindrical chamber 31 into a plurality of rotation passages 36, the liquid flow direction of the rotation passage 36 is shown by an arrow in Figure 2 、 Figure 3 . The annular partition plate 32 located at the innermost circumferential side can be the first annular partition plate 321 or the second annular partition plate 322, and the annular partition plate 32 located at the outermost circumferential side can be the first annular partition plate 321 or the second annular partition plate 322, as long as the first annular partition plate 321 and the second annular partition plate 322 are alternately arranged from the inner circumferential side to the outer circumferential side to divide the second cylindrical chamber 31 into a plurality of rotation passages 36.

[0060] As shown in Figure 2 and Figure 3As shown, multiple second outflow channels 33 connect to the outer circumferential end of the rotary channel 36 and are evenly distributed circumferentially. The end of the rotary channel 36 is located between the inner wall of the second cylindrical chamber 31 and the outermost annular partition 32. The end of the rotary channel 36 is annular, and the multiple second outflow channels 33 are evenly distributed circumferentially at the end of the rotary channel 36. The liquid flow direction of the second outflow channels 33 is... Figure 2 , Figure 3 The arrow is shown in the middle.

[0061] like Figure 2 and Figure 3 As shown, the liquid flowing into the second cylindrical chamber 31 from the first outflow channel 22 flows through the rotary channel 36, generating vortex mixing before flowing out through the second outflow channel 33. The liquid flowing into the second cylindrical chamber 31 from the center outwards flows radially around the first annular baffle 321 and the second annular baffle 322, creating turbulence and vortices, promoting mixing and improving the mixing effect. After the second mixing is completed in the second cylindrical chamber 31, the liquid flows out through multiple second outflow channels 33 evenly distributed on the inner circumference of the end of the rotary channel 36, ensuring the uniformity of the outflowing liquid.

[0062] like Figure 1 and Figure 4 As shown, each inflow channel 23 can connect to the side wall of the first axial end of the first cylindrical chamber 21. The first axial end of the first cylindrical chamber 21 is located on the axially opposite side of the second axial end wall 24 of the first cylindrical chamber 21. The inflow channel 23 connects to the first axial end of the first cylindrical chamber 21, increasing the axial distance between the inflow channel 23 and the first outflow channel 22, increasing the length of the liquid flow mixing path in the first cylindrical chamber 21, and improving the mixing effect. As mentioned above, the first cylindrical chamber 21 has a second axial end wall 24. Of course, the first cylindrical chamber 21 also has a first axial end wall 25. The first axial end wall 25 of the first cylindrical chamber 21 is perpendicular to the central axis of the first cylindrical chamber 21. The first axial end wall 25 and the second axial end wall 24 of the first cylindrical chamber 21 are located at the two axial ends of the first cylindrical chamber 21, respectively. The inflow channel 23 can connect to the side wall region of the first axial end wall 25 adjacent to the first cylindrical chamber 21, and the axial height of the side wall region can account for 20% of the total axial height of the first cylindrical chamber 21.

[0063] like Figure 2 and Figure 3 As shown, multiple inflow channels 23 can be evenly distributed circumferentially in the first cylindrical chamber 21, thereby constructing a symmetrical and stable swirling flow field in the first cylindrical chamber 21, avoiding flow field turbulence and deviation, and enabling multiple liquids to mix quickly and uniformly.

[0064] likeFigure 2 and Figure 3 As shown, among the multiple annular baffles 32 in the second cylindrical chamber 31, the first annular baffle 321 can be disposed on the innermost circumference, and the axial projection of the first annular baffle 321 onto the third axial end wall 34 of the second cylindrical chamber 31 is greater than and covers the outlet of the first outflow channel 22. The first annular baffle 321 on the innermost circumference surrounds the outlet of the first outflow channel 22. Liquid flowing out of the first outflow channel 22 flows into the chamber surrounded by the first annular baffle 321, and is blocked by the fourth axial end wall 35 of the second cylindrical chamber 31, flowing back out of the chamber surrounded by the first annular baffle 321 and flowing to the outer circumference. Compared with the second annular baffle 322 on the innermost circumference of the multiple annular baffles 32 in the second cylindrical chamber 31, the second annular baffle 322 promotes the generation of turbulence and vortices, promotes mixing, and improves the mixing effect.

[0065] like Figure 2 and Figure 3 In the second cylindrical chamber 31, among the plurality of annular baffles 32, the first annular baffle 321 can be located on the outermost circumference. The end of the rotary channel 36 is located between the side wall of the second cylindrical chamber 31 and the first annular baffle 321 on the outermost circumference. This allows the liquid in the end of the rotary channel 36 to flow from the third axial end wall 34 of the second cylindrical chamber 31 to the fourth axial end wall 35 of the second cylindrical chamber 31. All of the plurality of second outflow channels 33 are located between the side wall of the second cylindrical chamber 31 and the outermost annular baffle 321. Between the first annular baffles 321 on the outer periphery, and all of the multiple second outflow channels 33 are evenly distributed circumferentially on the fourth shaft end wall 35 of the second cylindrical chamber 31, the liquid in the end of the rotary channel 36 flows out from the second outflow channel 33 on the fourth shaft end wall 35. The direction of the liquid flowing out of the second cylindrical chamber 31 from the second outflow channel 33 is in line with the direction of the liquid flowing into the second cylindrical chamber 31 from the first outflow channel 22, so as to avoid the loss of flow energy caused by the change of the mainstream direction and improve the outflow efficiency.

[0066] like Figure 2 and Figure 3 As shown, the liquid mixer 1 may also be provided with a third mixing chamber 4, which is provided with a third cylindrical chamber 41 and a third outlet channel 42. The third mixing chamber 4 is used for a third mixing.

[0067] like Figure 2 and Figure 3As shown, all of the plurality of second outflow channels 33 are connected to the fifth axial end wall 43 of the third cylindrical chamber 41, and all of the plurality of second outflow channels 33 are evenly distributed circumferentially on the fifth axial end wall 43 of the third cylindrical chamber 41. The fifth axial end wall 43 of the third cylindrical chamber 41 is perpendicular to the centerline of the third cylindrical chamber 41 and is located at one axial end of the third cylindrical chamber 41. Of course, the third cylindrical chamber 41 also has a sixth axial end wall 44, which is perpendicular to the central axis of the third cylindrical chamber 41 and is located at the other axial end of the third cylindrical chamber 41. The fifth axial end wall 43 and the sixth axial end wall 44 of the third cylindrical chamber 41 are respectively located at both axial ends of the third cylindrical chamber 41.

[0068] like Figure 2 and Figure 3 As shown, the third outflow channel 42 connects to the center of the sixth axial end wall 44 of the third cylindrical chamber 41, and the liquid flow direction of the third outflow channel 42 is... Figure 2 , Figure 3 The arrow is shown in the middle.

[0069] like Figure 2 and Figure 3 As shown, the liquid flowing into the third cylindrical chamber 41 from the second outflow channel 33 mixes within the third cylindrical chamber 41 and then flows out through the third outflow channel 42. Within the third cylindrical chamber 41, radially, the liquid flowing in from the second outflow channel 33 flows from the outer periphery of the third cylindrical chamber 41 towards the center of the third outflow channel 42. This radial converging flow promotes collisions of the liquid within the third cylindrical chamber 41, enhancing mixing and improving the mixing effect. Inside the third cylindrical chamber 41, axially upward, the liquid flowing in from the second outflow channel 33 flows from the fifth axial end wall 43 of the third cylindrical chamber 41 to the third outflow channel 42 located at the sixth axial end wall 44 of the third cylindrical chamber 41. The direction of the liquid flowing out of the third cylindrical chamber 41 from the third outflow channel 42 is the same as the direction of the liquid flowing into the third cylindrical chamber 41 from the second outflow channel 33. This avoids the loss of flow energy and flow field turbulence caused by the change of the mainstream direction, improves the outflow efficiency, stabilizes the fluid pressure, eliminates flow pulsation, and finally discharges the mixed liquid.

[0070] like Figure 2 and Figure 3 As shown, the central axes of the first cylindrical chamber 21, the second cylindrical chamber 31, and the third cylindrical chamber 41 can coincide. This allows the liquid flowing from the first cylindrical chamber 21 into the second cylindrical chamber 31 through the first outflow channel 22 to flow along the central axis, and the liquid flowing from the second cylindrical chamber 31 into the third cylindrical chamber 41 through the second outflow channel 33 to flow in a direction parallel to the central axis. This creates a symmetrical and stable flow field, avoids flow field deviation, reduces flow field turbulence, reduces pressure loss, and improves the mixing effect.

[0071] As shown in Figure 2 and Figure 3 , the fourth axial end wall 35 of the second cylindrical chamber 31 and the fifth axial end wall 43 of the third cylindrical chamber 41 can be a second partition wall 5, the second partition wall 5 separating the second cylindrical chamber 31 and the third cylindrical chamber 41, compact structure, each second outflow channel 33 being a second outflow hole 37 axially penetrating the second partition wall 5, short flow path, small pressure loss.

[0072] As shown in Figure 2 and Figure 3 , the second axial end wall 24 of the first cylindrical chamber 21 and the third axial end wall 34 of the second cylindrical chamber 31 can be a first partition wall 6, the first partition wall 6 separating the first cylindrical chamber 21 and the second cylindrical chamber 31, compact structure, the first outflow channel 22 being a first outflow hole 26 axially penetrating the first partition wall 6, short flow path, small pressure loss.

[0073] As shown in Figure 2 and Figure 3 , the second axial end wall 24 of the first cylindrical chamber 21 can be a bottom wall of the first cylindrical chamber 21, the first cylindrical chamber 21 being vertically arranged, the central axis of the first cylindrical chamber 21 being parallel to the plumb line, the second axial end wall 24 of the first cylindrical chamber 21 being a bottom wall of the first cylindrical chamber 21, the first axial end wall 25 of the first cylindrical chamber 21 being a top wall of the first cylindrical chamber 21, the liquid in the first cylindrical chamber 21 flowing under the action of gravity.

[0074] As shown in Figure 2 and Figure 3 , the fourth axial end wall 35 of the second cylindrical chamber 31 can be a bottom wall of the second cylindrical chamber 31, the second cylindrical chamber 31 being vertically arranged, the central axis of the second cylindrical chamber 31 being parallel to the plumb line, the fourth axial end wall 35 of the second cylindrical chamber 31 being a bottom wall of the second cylindrical chamber 31, the third axial end wall 34 of the second cylindrical chamber 31 being a top wall of the second cylindrical chamber 31, the liquid in the second cylindrical chamber 31 flowing under the action of gravity.

[0075] As shown in Figure 2 and Figure 3 Figure 2 Figure 3 Figure 2 Figure 3 Figure 2 Figure 3 Figure 2 Figure 3 Figure 2 Figure 3 Figure 2 Figure 3 Figure 2 Figure 3 Figure 2 Figure 3 Figure 2 Figure 3 Figure 2 Figure 3 Figure 2 Figure 3 Figure 2 Figure 3 Figure 2 Figure 3 Figure 2 Figure 3 Figure 2 Figure 3 Figure 2 Figure 3 Figure , the sixth axial end wall 44 of the third cylindrical chamber 41 can be a bottom wall of the third cylindrical chamber 41, the third cylindrical chamber 41 being vertically arranged, the central axis of the third cylindrical chamber 41 being parallel to the plumb line, the sixth axial end wall 44 of the third cylindrical chamber 41 being a bottom wall of the third cylindrical chamber 41, the fifth axial end wall 43 of the third cylindrical chamber 41 being a top wall of the third cylindrical chamber 41, the liquid in the third cylindrical chamber 41 flowing under the action of gravity.

[0076] To reduce the flow dead zone of the liquid mixer 1, the structure in the first cylindrical chamber 21, the second cylindrical chamber 31 and the third cylindrical chamber 41 can be rounded.

[0077] The liquid mixer 1 has high mixing efficiency, low pressure loss and short mixing time. For the mixing of two kinds of fuel, the mixing efficiency is an index representing the uniformity of the mixing of two kinds of fuel, the mixing efficiency is evaluated by calculating the cross-sectional fluid concentration variance, the mixing efficiency is between 0 and 1, wherein the mixing efficiency of 1 indicates that the two kinds of fuel are completely mixed, and the mixing efficiency of 0 indicates that the two kinds of fuel are not mixed at all. Numerical simulation is performed on the liquid mixer 1 with two inflow channels 23, and the results show that: (1) the liquid mixer 1 has high mixing efficiency, and the mixing efficiency is greater than 0.99; (2) the liquid mixer 1 has low pressure loss, and the pressure loss of the liquid mixer 1 increases with the increase of the mass flow rate of the two kinds of liquid fuel, and when the flow rate is 0.5 kg / s (1800 kg / h), the pressure loss is not greater than 58 kPa; (3) the liquid mixer 1 has short fuel residence time, and the fuel residence time decreases with the increase of the mass flow rate of the two kinds of liquid fuel, and when the flow rate is 0.1 kg / s (360 kg / h), the fuel residence time is about 140 s, and when the flow rate is 0.5 kg / s (1800 kg / h), the fuel residence time is about 40 s.

[0078] Although the present application is disclosed with examples as above, it is not intended to limit the present application, and any person skilled in the art can make possible changes and modifications without departing from the spirit and scope of the present application.

Claims

1. A liquid mixer (1), characterized in that include: The first mixing chamber (2) includes a first cylindrical chamber (21), a first outflow channel (22), and a plurality of inflow channels (23). Each of the inflow channels (23) is connected to the first cylindrical chamber (21) and extends tangentially from the first cylindrical chamber (21) along the vertical plane. The first outflow channel (22) is connected to the center of the second axial end wall (24) of the first cylindrical chamber (21). The liquid flowing in from the inflow channel (23) is circumferentially rotated and mixed in the first cylindrical chamber (21) and then flows out through the first outflow channel (22). as well as The second mixing chamber (3) includes a second cylindrical chamber (31), a plurality of annular baffles (32), and a plurality of second outflow channels (33). The first outflow channel (22) communicates with the center of the third axial end wall (34) of the second cylindrical chamber (31). The central axis of each annular baffle (32) coincides with the central axis of the second cylindrical chamber (31). The plurality of annular baffles (32) includes a first annular baffle (321) and a second annular baffle (322). The first annular baffle (321) extends axially from the fourth axial end wall (35) of the second cylindrical chamber (31) and is axially spaced from the third axial end wall (34) of the second cylindrical chamber (31). An annular baffle (322) extends axially from the third axial end wall (34) of the second cylindrical chamber (31) and is axially spaced from the fourth axial end wall (35) of the second cylindrical chamber (31). The first annular baffle (321) and the second annular baffle (322) are alternately arranged from the inner circumferential side to the outer circumferential side to separate the rotary channel (36) in the second cylindrical chamber (31). The plurality of second outflow channels (33) connect the ends of the rotary channel (36) on the outer circumferential side and are evenly distributed circumferentially. The liquid flowing into the second cylindrical chamber (31) from the first outflow channel (22) flows in the rotary channel (36) to generate vortex mixing and then flows out through the second outflow channel (33).

2. The liquid mixer (1) according to claim 1, characterized in that: Each of the inflow channels (23) connects to the sidewall of the first axial end of the first cylindrical chamber (21), the first axial end of the first cylindrical chamber (21) being located on the axially opposite side of the second axial end wall (24) of the first cylindrical chamber (21).

3. The liquid mixer (1) according to claim 1, characterized in that: The multiple inflow channels (23) are evenly distributed circumferentially in the first cylindrical cavity (21).

4. The liquid mixer (1) according to claim 1, characterized in that: In the plurality of annular baffles (32) of the second cylindrical chamber (31), the first annular baffle (321) is located on the innermost circumference and its axial projection toward the third axial end wall (34) of the second cylindrical chamber (31) is greater than and covers the outlet of the first outflow channel (22).

5. The liquid mixer (1) according to claim 1, characterized in that: In the plurality of annular partitions (32) of the second cylindrical chamber (31), the first annular partition (321) is located on the outermost circumferential side, the end of the rotary channel (36) is located between the side wall of the second cylindrical chamber (31) and the first annular partition (321) on the outermost circumferential side, and the plurality of second outflow channels (33) are located between the side wall of the second cylindrical chamber (31) and the first annular partition (321) on the outermost circumferential side and are evenly distributed circumferentially on the fourth axial end wall (35) of the second cylindrical chamber (31).

6. The liquid mixer (1) according to claim 1, characterized in that: The liquid mixer (1) further includes a third mixing chamber (4), which includes a third cylindrical chamber (41) and a third outlet channel (42). The plurality of second outlet channels (33) are connected to the fifth axial end wall (43) of the third cylindrical chamber (41) and are evenly distributed circumferentially. The third outlet channel (42) is connected to the center of the sixth axial end wall (44) of the third cylindrical chamber (41). The liquid flowing into the third cylindrical chamber (41) from the second outlet channel (33) is mixed in the third cylindrical chamber (41) and then flows out through the third outlet channel (42).

7. The liquid mixer (1) according to claim 6, characterized in that: The central axes of the first cylindrical chamber (21), the second cylindrical chamber (31) and the third cylindrical chamber (41) coincide.

8. The liquid mixer (1) according to claim 6, characterized in that: The fourth axial end wall (35) of the second cylindrical chamber (31) and the fifth axial end wall (43) of the third cylindrical chamber (41) are integrally formed as a second partition wall (5). The second partition wall (5) separates the second cylindrical chamber (31) and the third cylindrical chamber (41). Each second outflow channel (33) is a second outflow hole (37) that penetrates the second partition wall (5) axially.

9. The liquid mixer (1) according to claim 1, characterized in that: The second axial end wall (24) of the first cylindrical chamber (21) and the third axial end wall (34) of the second cylindrical chamber (31) are integrally formed by a first partition wall (6). The first partition wall (6) separates the first cylindrical chamber (21) and the second cylindrical chamber (31). The first outflow channel (22) is a first outflow hole (26) that penetrates the first partition wall (6) axially.

10. The liquid mixer (1) according to claim 6, characterized in that: The second axial end wall (24) of the first cylindrical chamber (21) serves as the bottom wall of the first cylindrical chamber (21), the fourth axial end wall (35) of the second cylindrical chamber (31) serves as the bottom wall of the second cylindrical chamber (31), and the sixth axial end wall (44) of the third cylindrical chamber (41) serves as the bottom wall of the third cylindrical chamber (41).

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