A multi-fluid mixer and mixing test method

Abstract

The present invention relates to a multi-fluid mixer and a mixing test method, wherein the multi-fluid mixer comprises a mixing block; a columnar mixing chamber is arranged in the mixing block; a liquid outlet and a plurality of liquid inlets are respectively arranged on the top wall and the side walls of the mixing chamber; a plurality of diverter blade groups are arranged in the mixing chamber; the diverter blade group comprises a plurality of diverter blades; a first flow channel groove and two groups of second flow channel grooves are arranged on the diverter blades; the first flow channel groove and the two groups of second flow channel grooves are arranged along the length direction of the mixing chamber; the first flow channel groove comprises a diverter groove for obliquely rushing the fluid in the liquid inlet, and two groups of movable grooves distributed on both sides of the diverter groove; the movable groove and the second flow channel groove are both used for passing the diverted fluid; the multi-fluid mixer has the advantages of uniform mixing, no need for power input, easy maintenance and cleaning, and a wide range of applications.

Description

Technical Field

[0001] The invention relates to the field of spraying, and more particularly to a multi-fluid mixer and a mixing test method. Background Art

[0002] Fluid proportioning mixing systems are often an indispensable part of the spraying field, especially the multi-component spraying field. Common mixing systems include H-type, Y-type, T-type and cross-type. Multiple fluids converge into the mixing chamber of the mixing system for mixing. Without adding a power stirring system, uneven mixing is prone to occur. For this reason, some mixing systems will have additional power stirring systems, but adding a stirring system requires an external power source and occupies more installation space, and will consume more cleaning time and equipment costs. In addition, the existing mixing system is also unable to adapt well to the physical flow characteristics of the fluid. Therefore, further improvements to the existing mixing system are still needed to address the aforementioned deficiencies. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a multi-fluid mixer and a mixing test method in view of the above-mentioned defects of the prior art.

[0004] On the one hand, a multi-fluid mixer is provided, comprising a mixing block; a columnar mixing chamber is arranged in the mixing block; a liquid outlet and a plurality of groups of liquid inlets distributed in a circumference are respectively arranged on the top wall and the side wall of the mixing chamber; the liquid outlet and the liquid inlet are both connected to the outer surface of the mixing block; wherein,

[0005] The mixing chamber is provided with a plurality of splitter blade groups corresponding to the plurality of groups of liquid inlets one by one; the splitter blade group includes a plurality of splitter blades fixed on the mixing block; the splitter blade is provided with a first flow channel groove and two groups of second flow channel grooves distributed on both sides of the first flow channel groove; the first flow channel groove and the two groups of the second flow channel grooves are arranged along the length direction of the mixing chamber;

[0006] The first flow channel groove includes a diverter groove for obliquely flowing the fluid in the liquid inlet, and two groups of movable grooves distributed on both sides of the diverter groove; the movable groove and the second flow channel groove are both used for passing the diverted fluid.

[0007] On the other hand, a mixing test method is provided, based on the above-mentioned multi-fluid mixer, which includes the following steps:

[0008] Step 1:

[0009] Setting the first working parameters of the multi-fluid mixer; wherein the first working parameters include: the type of the main agent, the diameter of the main agent port, the main agent flow rate, the flow rate of the main agent into the mixing chamber, the pushing pressure of the main agent, and the type of the auxiliary agent, the diameter of the auxiliary agent port, the auxiliary agent flow rate, the flow rate of the auxiliary agent into the mixing chamber, and the pushing pressure of the auxiliary agent;

[0010] Obtaining the Reynolds number of the main agent, the Reynolds number of the auxiliary agent, the second working parameter after the main agent enters the mixing chamber, and the third working parameter after the auxiliary agent enters the mixing chamber; wherein the second working parameter and the third working parameter both include: diffusion angle ɑ, jet range S, flow rate, flow velocity and dynamic pressure;

[0011] Step 2:

[0012] Repeat the numerical calculation of step 1, draw a first circular tube jet structure diagram corresponding to the main agent according to the obtained multiple sets of second working parameters, and draw a second circular tube jet structure diagram corresponding to the auxiliary agent according to the obtained multiple sets of third working parameters;

[0013] Step 3:

[0014] According to the first circular tube jet structure diagram, blade A is placed within the range of the main agent;

[0015] According to the second circular tube jet structure diagram, blade B is placed within the auxiliary agent range;

[0016] Run the numerical calculation method to obtain the mixing conditions of the main agent and the auxiliary agent in the mixing chamber;

[0017] The blades are adjusted according to the mixing conditions, and the adjustment contents include any one or a combination of the number of blades A, the size of the first flow channel groove on blade A, the size of the second flow channel groove on blade A, the angle of blade A in the mixing chamber, the number of blades B, the size of the first flow channel groove on blade B, the size of the second flow channel groove on blade B, and the angle of blade B in the mixing chamber;

[0018] Step 4: Check the mixing effect at the liquid outlet.

[0019] The beneficial effects of the present invention are:

[0020] 1. Mix evenly

[0021] The present invention combines the structure of the splitter blade with the fluid characteristics of the fluid. Through calculation analysis and simulation experiments, it is found that when the fluid and the splitter blade have a certain deflection angle, the fluid can be split by the splitter blade, and then a vortex is formed in the mixing chamber, which not only improves the mixing efficiency but also makes the mixing of multiple fluids more uniform. At the same time, the use of this mixer has a small pressure loss.

[0022] 2. No power input required, easy to maintain and clean

[0023] The present invention does not need to add a power source, but uses the rheological properties of the fluid itself to allow the fluid to flow and further form a vortex, so that multiple fluids can flow and output in the mixing chamber. On the one hand, the energy consumption is small, reducing the cost of spray explosion-proof requirements; on the other hand, it avoids the degradation and siltation of the fluid, and the cleaning efficiency is higher and the cleaning effect is better.

[0024] 3. Wide range of applications

[0025] The blade structure is modularly designed according to the rheological properties of the fluid. When different fluids need to be mixed, the blades corresponding to the rheological properties of the fluid to be mixed can be replaced. It also has the ability to adjust different mixing degrees, so that different mixing degrees can be achieved for different materials and proportions. At the same time, two or more liquid inlets can be used according to actual mixing needs.

[0026] In summary, corresponding to different pressures and flow ratios of the mixed materials, uniform mixing of multiple fluids can be achieved by changing the number of splitter blades, the placement angle, the size of the first flow channel groove, and the size of the second flow channel groove, which has good applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work:

[0028] Figure 1 is a cross-sectional view of a multi-fluid mixer provided by the present invention;

[0029] Figure 2 is a cross-sectional view of a multi-fluid mixer provided by the present invention;

[0030] Figure 3 is a cross-sectional view of a multi-fluid mixer provided by the present invention;

[0031] Figure 4 is a cross-sectional view of a multi-fluid mixer provided by the present invention;

[0032] Figure 5 is a cross-sectional view of a multi-fluid mixer provided by the present invention;

[0033] Figure 6 is a cross-sectional view of a multi-fluid mixer provided by the present invention;

[0034] Figure 7 It is an exploded diagram of a multi-fluid mixer provided by the present invention. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be described clearly and completely in combination with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are partial embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention.

[0036] Embodiment 1

[0037] This embodiment provides a multi-fluid mixer, such as Figures 1 to 3 As shown, it includes a mixing block 10; a columnar mixing chamber 180 is arranged in the mixing block 10; a top wall and a side wall of the mixing chamber 180 are respectively provided with a liquid outlet 181 and a plurality of groups of liquid inlets 182 distributed in a circumference; the liquid outlet 181 and the liquid inlet 182 are both connected to the outer surface of the mixing block 10; a plurality of splitter blade groups corresponding to the plurality of groups of liquid inlets 182 are arranged in the mixing chamber 180; the splitter blade group includes a plurality of splitter blades 11 fixed on the mixing block 10; the splitter blades The sheet 11 is provided with a first flow channel 183 and two groups of second flow channel 184 distributed on both sides of the first flow channel 183; the first flow channel 183 and the two groups of second flow channel 184 are arranged along the length direction of the mixing chamber 180; the first flow channel 183 includes a diverter groove 185 for oblique flow of the fluid in the liquid inlet 182, and two groups of movable grooves 186 distributed on both sides of the diverter groove 185; the movable groove 186 and the second flow channel 184 are both used for the passage of the diverted fluid.

[0038] In order to facilitate the description of the composition of the first flow channel groove 183, as shown in FIG. Figure 2 As shown, the two straight lines are named 0203, the two straight lines are parallel, and both coincide with the side wall of the liquid outlet, the space between the two straight lines is the diversion groove 185, and the two remaining spaces of the first flow channel groove 183 are the two movable grooves 186. Figure 3 As shown, both straight lines are named 0405, the two straight lines are parallel and both coincide with the side wall of the liquid outlet, the space between the two straight lines is the diversion groove 185, and the remaining two parts of the first flow channel groove 183 are the two movable grooves 186.

[0039] Furthermore, take a fluid as an example to illustrate the working process of the fluid: Figure 2 and Figure 3As shown, when in use, the first flow channel groove 183 is aligned with the liquid inlet 182, and the fluid is injected into the liquid inlet 182. The fluid is ejected outward through the liquid inlet 182, and then splits after being ejected to the bottom of the diverter groove 185. The two separated fluids pass through the two groups of active grooves 186 respectively, and then flow along the inner wall of the mixing chamber 180, thereby forming a vortex; two groups of second flow channel grooves 184, one group of second flow channel grooves 184 can allow the vortex fluid located above in the mixing chamber 180 to pass, and the other group of second flow channel grooves 184 can allow the vortex fluid located below in the mixing chamber 180 to pass, so that the fluid can maintain an accelerated state. Therefore, after injecting multiple fluids, the multiple fluids can be mixed quickly and evenly.

[0040] The multi-fluid mixer has the following advantages:

[0041] 1. Mix evenly

[0042] The present invention combines the structure of the splitter blade with the fluid characteristics of the fluid. After multiple calculations, analyses and experiments, it is found that when the fluid and the splitter blade have a certain deflection angle, the fluid can be split by the splitter blade, thereby forming a vortex in the mixing chamber, which not only improves the mixing efficiency, but also makes the mixing of multiple fluids more uniform; at the same time, using this mixer, the pressure loss is small.

[0043] 2. No power input required, easy to maintain and clean

[0044] The present invention does not need to add a power source, but uses the rheological properties of the fluid itself to allow the fluid to flow and further form a vortex, so that multiple fluids can flow and output in the mixing chamber. On the one hand, the energy consumption is small, reducing the cost of spray explosion-proof requirements; on the other hand, it avoids the degradation and siltation of the fluid, and the cleaning efficiency is higher and the cleaning effect is better.

[0045] 3. Wide range of applications

[0046] The blade structure is modularly designed according to the rheological properties of the fluid. When different fluids need to be mixed, the blades corresponding to the rheological properties of the fluid to be mixed can be replaced. It also has the ability to adjust different mixing degrees, so that different mixing degrees can be achieved for different materials and proportions. At the same time, two or more liquid inlets can be used according to actual mixing needs.

[0047] In summary, corresponding to different pressures and flow ratios of the mixed materials, uniform mixing of multiple fluids can be achieved by changing the number of splitter blades, the placement angle, the size of the first flow channel groove, and the size of the second flow channel groove, which has good applicability.

[0048] Among them, there are the following preferred settings for the splitter blades:

[0049] The thickness of the splitter blade is 0.5-2mm to ensure a certain strength when in contact with the fluid;

[0050] The splitter blades are made of corrosion-resistant stainless steel or Teflon sheets to ensure a long service life;

[0051] The number of splitter blades is less than 6;

[0052] The shape of the splitter blade is preferably a curved surface, which has less resistance to the fluid, better mixing effect, and can reduce pressure loss; further, each edge of the splitter blade has a rounded corner or an obtuse angle, which is more conducive to material transportation;

[0053] Among them, there are the following preferred settings for pushing and detecting fluids:

[0054] The fluid enters the liquid inlet after passing through the one-way valve. Since the liquid inlet is oblique, the fluid can enter the mixing chamber obliquely;

[0055] Furthermore, a pressure sensor and a flow meter are installed at each liquid inlet, and a pressure sensor and a flow meter are also installed at the liquid outlet to record the working data of the fluid.

[0056] Embodiment 2

[0057] This embodiment provides a multi-fluid mixer, and the same points as those in the first embodiment are not repeated here, except that:

[0058] like Figure 4 and Figure 5 As shown, the liquid inlet 182 extends obliquely, and the central axis is perpendicular to the central axis of the mixing chamber 180; the multiple groups of liquid inlets 182 include several groups of main agent inlets 187 and several groups of auxiliary agent inlets 188;

[0059] The main agent port 187 includes a first front end communicating with the outer surface of the mixing block 10;

[0060] The auxiliary agent port 188 includes a second front end communicating with the outer surface of the mixing block 10;

[0061] The angle between the main agent port 187 and the reference line passing through the first front end and the second front end is 0°-35°, that is, the angle between the straight line L5 and the straight line OO1 is 0°-35°;

[0062] The angle between the auxiliary agent port 188 and the reference line is 0°-35°, that is, the angle between the straight line L2 and the straight line OO1 is 0°-35°;

[0063] The first front end and the second front end on the reference line are distributed on both sides of the mixing chamber 180 .

[0064] Among them, the angle between the main agent port 187 and the reference line OO1 can be flexibly adjusted according to the mixing effect calculated by the numerical calculation method;

[0065] The angle between the auxiliary agent port 188 and the reference line OO1 can be flexibly adjusted according to the mixing effect calculated by the numerical calculation method.

[0066] like Figure 1 and Figure 5 As shown, a plurality of splitter blade groups include a blade group A corresponding to the main agent port 187 and a blade group B corresponding to the auxiliary agent port 188;

[0067] The blade group A includes a plurality of blades A12; the angle between the blade A12 and the reference line is 15°-60°, that is, the angle between the straight line L4 and the straight line OO1 is 15°-60°;

[0068] The blade group B includes a plurality of blades B13; the angle formed by the blades B13 and the reference line is 15°-60°, that is, the angle formed by the straight line L3 and the straight line OO1 is 15°-60°.

[0069] Among them, the angle between the blade A12 and the reference line OO1 can be flexibly adjusted according to the mixing effect calculated by the numerical calculation method;

[0070] The angle between the blade B13 and the reference line OO1 can be flexibly adjusted according to the mixing effect calculated by the numerical calculation method.

[0071] Among them, blade A12 and blade B13 may be parallel or non-parallel.

[0072] like Figure 6 As shown, for the convenience of explanation, letters are marked on the splitter blades:

[0073] The width of the first flow channel groove on the blade A12 is W1=K1*D1+C, where K1 is 0.6-2.2, D1 is the caliber of the main agent port, which can also be understood as the diameter or equivalent diameter of the main agent port, C is an experimental constant, and the distance between B4 and B5 is W1, B 10 , B 11 The distance is D1;

[0074] The groove depth D2 of the first flow channel groove on the blade A12 is D1*K2, wherein K2 is 0.5-2.5, and the distance between B5 and B6 is D2;

[0075] The width of the second flow channel groove on the blade A12 is W2 = K3*D1+C, where K3 is 0.6-2.2. Since there are two groups of second flow channel grooves, they are also distinguished here. The width of the second flow channel groove near the liquid outlet is W 20=K3*D1+C, the width of the second flow channel away from the outlet is W 21 =K3*D1+C, the distance between B1 and B3 is W 20 , the distance between B7 and B8 is W 21 ;

[0076] The groove depth of the second flow channel groove on the blade A12 is D3 = D1 * K4, where K4 is 0.5-2.5. Since there are two groups of second flow channel grooves, they are also distinguished here. The groove depth of the second flow channel groove near the liquid outlet is D 30 =D1*K4, the depth of the second flow channel away from the outlet is D 31 =D1*K4, the distance between B1 and B2 is D 30 , the distance between B8 and B9 is D 31 ;

[0077] The width of the first flow channel groove on the blade B13 is W3 = K5*D4+C, where K5 is 0.6-2.2, D4 is the diameter of the auxiliary agent port, and the diameter can also be understood as the diameter or equivalent diameter of the main agent port. The distance between E4 and E6 is W3, and E 10 、E 11 The distance is D4;

[0078] The groove depth D5 of the first flow channel groove on the blade B13 is D4*K6, wherein K6 is 0.5-2.5, and the distance between E4 and E5 is D5;

[0079] The width of the second flow channel groove on the blade B13 is W4=K7*D4+C, where K7 is 0.6-2.2. Since there are two groups of second flow channel grooves, they are also distinguished here. The width of the second flow channel groove near the liquid outlet is W 40 =K7*D4+C, the width of the second flow channel away from the outlet is W 41 =K7*D4+C, the distance between E1 and E3 is W 40 , the distance between E7 and E9 (E7' and E9') is W 41 It should be noted that a plurality of second flow channel grooves can be provided, so the distance between E7' and E9' is also W 41 ;

[0080] The groove depth of the second flow channel groove on the blade B13 is D6 = D4*K8, where K8 is 0.5-2.5. Since there are two groups of second flow channel grooves, they are also distinguished here. The groove depth of the second flow channel groove near the liquid outlet is D 60 =D4*K8, the depth of the second flow channel away from the outlet is D 61 =D4*K8, the distance between E1 and E2 is D 60 , the distance between E7 and E8 (E7' and E8') is D 61It should be noted that the second flow channel groove can be set in multiples, so the distance between E7' and E8' is also D 61 .

[0081] It should be noted that K1-K8 are all obtained based on the rheological properties of the fluid, and C is an adjustment coefficient set based on numerical simulation, engineering experiments and processing difficulty. Therefore, when different fluid media are mixed, the pressure of the fluid, the flow rate of the fluid, and the various parameters of the splitter blades can be matched to analyze the mixture of different ratios in a digital way.

[0082] like Figure 6 As shown, the first flow channel groove and the second flow channel groove are spaced apart by (0.5-2)W1.

[0083] like Figure 1 and Figure 7 As shown, the mixer 10 includes a main seat body 14, and a blade fixing seat 15 fixed to the main seat body 14 by multiple bolts (not shown in the figure); the main seat body 14 is provided with a stepped groove 189 corresponding to the blade fixing seat 15; the blade fixing seat 15 is provided with a plurality of threaded holes 1810 adapted to the bolts, and a plurality of adjustment slots 1811 adapted to the bolts; the adjustment slots 1811 are arc-shaped; each group of diverter blades are fixed on the blade fixing seat 15. There are two advantages in setting the blade fixing seat 15. First, different diverter blades can be selected modularly during experiments or production. Since the diverter blades and the blade fixing seat are straight-inserted, the blade fixing seat can be inserted into the reserved stepped groove when replaced, and then locked by bolts, which is convenient for installation; second, it is convenient for angle adjustment.

[0084] Embodiment 3

[0085] This embodiment provides a hybrid test method, comprising the following steps:

[0086] Step S101:

[0087] Setting the first working parameters of the multi-fluid mixer; wherein the first working parameters include: the type of the main agent, the diameter of the main agent port, the main agent flow rate, the flow rate of the main agent into the mixing chamber, the pushing pressure of the main agent, and the type of the auxiliary agent, the diameter of the auxiliary agent port, the auxiliary agent flow rate, the flow rate of the auxiliary agent into the mixing chamber, and the pushing pressure of the auxiliary agent;

[0088] Obtaining the Reynolds number of the main agent, the Reynolds number of the auxiliary agent, the second working parameter after the main agent enters the mixing chamber, and the third working parameter after the auxiliary agent enters the mixing chamber; wherein the second working parameter and the third working parameter both include: diffusion angle ɑ, jet range S, flow rate, flow velocity and dynamic pressure;

[0089] Step S102:

[0090] Repeat the numerical calculation of step 1, draw a first circular tube jet structure diagram corresponding to the main agent according to the obtained multiple sets of second working parameters, and draw a second circular tube jet structure diagram corresponding to the auxiliary agent according to the obtained multiple sets of third working parameters;

[0091] Step S103:

[0092] According to the first circular tube jet structure diagram, blade A is placed within the range of the main agent;

[0093] According to the second circular tube jet structure diagram, blade B is placed within the auxiliary agent range;

[0094] Run the numerical calculation method to obtain the mixing conditions of the main agent and the auxiliary agent in the mixing chamber;

[0095] The blades are adjusted according to the mixing conditions, and the adjustment contents include any one or a combination of the number of blades A, the size of the first flow channel groove on blade A, the size of the second flow channel groove on blade A, the angle of blade A in the mixing chamber, the number of blades B, the size of the first flow channel groove on blade B, the size of the second flow channel groove on blade B, and the angle of blade B in the mixing chamber;

[0096] Step S104: Detecting the mixing effect at the liquid outlet.

[0097] The above hybrid test method combines the existing gas jet formula and numerical calculation method, and obtains the correlation between the splitter blade and the rheological characteristics of the fluid through multiple calculations and experiments.

[0098] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A multi-fluid mixer, comprising a mixing block; a columnar mixing chamber is arranged in the mixing block; a liquid outlet and a plurality of groups of liquid inlets are arranged on the top wall and the side wall of the mixing chamber; the liquid outlet and the liquid inlet are both connected to the outer surface of the mixing block; characterized in that: The mixing chamber is provided with a plurality of splitter blade groups corresponding to the plurality of groups of liquid inlets one by one; the splitter blade group includes a plurality of splitter blades fixed on the mixing block; the splitter blade is provided with a first flow channel groove and two groups of second flow channel grooves distributed on both sides of the first flow channel groove; the first flow channel groove and the two groups of the second flow channel grooves are arranged along the length direction of the mixing chamber; The first flow channel groove comprises a diverter groove for the fluid in the liquid inlet to flow obliquely, and two groups of movable grooves distributed on both sides of the diverter groove; the movable groove and the second flow channel groove are both used for the diverted fluid to pass through; The mixer comprises a main seat body and a blade fixing seat fixed to the main seat body by a plurality of bolts; The main seat body is provided with a stepped groove corresponding to the blade fixing seat; The blade fixing seat is provided with a plurality of threaded holes adapted to the bolts, and a plurality of adjustment slots adapted to the bolts; the adjustment slots are arc-shaped; each group of the splitter blades is fixed on the blade fixing seat; Each corner of the splitter blade is rounded or obtuse.

2. The multi-fluid mixer according to claim 1, characterized in that: The liquid inlet extends obliquely, and the central axis is perpendicular to the central axis of the mixing chamber; the multiple groups of liquid inlets include several groups of main agent inlets and several groups of auxiliary agent inlets; The main agent port includes a first front end in communication with the outer surface of the mixing block; The auxiliary agent port includes a second front end in communication with the outer surface of the mixing block; The angle between the main agent port and the reference line passing through the first front end and the second front end is 0°-35°; The angle between the auxiliary agent port and the reference line is 0°-35°; The first front end and the second front end on the reference line are distributed on both sides of the mixing chamber.

3. The multi-fluid mixer according to claim 2, characterized in that: The plurality of splitter blade groups include a blade group A corresponding to the main agent port, and a blade group B corresponding to the auxiliary agent port; The blade group A includes a plurality of blades A; the angle between the blades A and the reference line is 15°-60°; The blade group B includes a plurality of blades B; the angle formed between the blades B and the reference line is 15°-60°.

4. The multi-fluid mixer according to claim 3, characterized in that: The width of the first flow channel groove on the blade A is W1=K1*D1+C, wherein K1 is 0.6-2.2, D1 is the diameter of the main agent port, and C is an experimental constant; The groove depth D2 of the first flow channel groove on the blade A is D1*K2, wherein K2 is 0.5-2.5; The width of the second flow channel groove on the blade A is W2=K3*D1+C, wherein K3 is 0.6-2.2, The groove depth D3 of the second flow channel groove on the blade A is D1*K4, wherein K4 is 0.5-2.5; The width of the first flow channel groove on the blade B is W3=K5*D4+C, wherein K5 is 0.6-2.2, and D4 is the diameter of the auxiliary agent port; The groove depth D5 of the first flow channel groove on the blade B is D4*K6, wherein K6 is 0.5-2.5; The width of the second flow channel groove on the blade B is W4=K7*D4+C, wherein K7 is 0.6-2.2; The groove depth D6 of the second flow channel groove on the blade B is D4*K8, wherein K8 is 0.5-2.

5.

5. The multi-fluid mixer according to claim 4, characterized in that: The first flow channel groove and the second flow channel groove have a distance therebetween of (0.5-2)W1.

6. A mixing test method, based on the multi-fluid mixer according to any one of claims 1 to 5, characterized in that: The steps include: Step 1: Setting the first working parameters of the multi-fluid mixer; wherein the first working parameters include: the type of the main agent, the diameter of the main agent port, the main agent flow rate, the flow rate of the main agent into the mixing chamber, the pushing pressure of the main agent, and the type of the auxiliary agent, the diameter of the auxiliary agent port, the auxiliary agent flow rate, the flow rate of the auxiliary agent into the mixing chamber, and the pushing pressure of the auxiliary agent; Obtaining the Reynolds number of the main agent, the Reynolds number of the auxiliary agent, the second working parameter after the main agent enters the mixing chamber, and the third working parameter after the auxiliary agent enters the mixing chamber; wherein the second working parameter and the third working parameter both include: diffusion angle ɑ, jet range S, flow rate, flow velocity and dynamic pressure; Step 2: Repeat the numerical calculation of step 1, draw a first circular tube jet structure diagram corresponding to the main agent according to the obtained multiple sets of second working parameters, and draw a second circular tube jet structure diagram corresponding to the auxiliary agent according to the obtained multiple sets of third working parameters; Step 3: According to the first circular tube jet structure diagram, blade A is placed within the range of the main agent; According to the second circular tube jet structure diagram, blade B is placed within the auxiliary agent range; Use numerical calculation methods to obtain the mixing conditions of the main agent and auxiliary agent in the mixing chamber; The blades are adjusted according to the mixing conditions, and the adjustment contents include any one or a combination of the number of blades A, the size of the first flow channel groove on blade A, the size of the second flow channel groove on blade A, the angle of blade A in the mixing chamber, the number of blades B, the size of the first flow channel groove on blade B, the size of the second flow channel groove on blade B, and the angle of blade B in the mixing chamber; Step 4: Check the mixing effect at the liquid outlet.

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