A fluid confluence device capable of realizing rapid mixing of fluids

Abstract

The present invention discloses a fluid confluence device capable of realizing rapid mixing of fluids, comprising: a first pipeline for inflow of high-pressure fluid and a second pipeline for inflow of low-pressure fluid, the first pipeline being connected to the second pipeline; at least one runner is arranged in the second pipeline, and the edge of each runner is placed in the first pipeline; when the high-pressure fluid flows through the runner, the runner is driven to rotate counterclockwise, so that a negative pressure area is formed on the upstream side of the runner. The present invention can realize the confluence of two or more fluids of different pressures, and realize efficient mixing in the process of fluid confluence without adding additional power.

Description

Technical Field

[0001] The invention relates to the technical field of fluid mixing, and in particular to a fluid converging device capable of realizing rapid mixing of fluids. Background Art

[0002] In production and life, the confluence of two fluids is a very common situation. During the confluence process, the fluid pressures in the two branches are difficult to be the same, and the two fluids collide with each other, resulting in large local losses. The flow rate of the low-pressure fluid entering the confluence pipe will be significantly reduced, thus achieving the confluence effect. After the high-pressure fluid merges, the flow rate change is relatively small, but the head will be reduced. This invisibly reduces the efficiency of the front-end water pump and leads to energy waste.

[0003] After the two fluids merge, they cannot be mixed quickly, and the quality of the mixed fluid is uneven and the characteristics are unstable. When the fluid quality requirements are high, a pipeline mixer is often required at the back. For example, in the water treatment pipeline dosing system, after the water pipe and the dosing tank merge, a pipeline mixer is generally required to shorten the mixing time of the two media and achieve a diffusion effect of more than 90%.

[0004] Although pipeline mixers can solve the problem of medium mixing well, they will further increase system resistance, reduce system efficiency, and lead to energy waste. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a fluid merging device that can achieve rapid mixing of fluids, which can merge two or more fluids with different pressures and achieve efficient mixing during the fluid merging process without the need for additional power.

[0006] The present invention discloses a fluid merging device capable of realizing rapid mixing of fluids, comprising: a first pipeline for flowing high-pressure fluid and a second pipeline for flowing low-pressure fluid, wherein the first pipeline is connected to the second pipeline to realize merging and mixing of high-pressure fluid and low-pressure fluid;

[0007] At least one rotor is arranged in the second pipeline, and the edge of each rotor is placed in the first pipeline; when the high-pressure fluid flows through the rotor, it drives the rotor to rotate counterclockwise, so that a negative pressure area is formed on the upstream side of the rotor.

[0008] As a further improvement of the present invention, a streamlined baffle is provided on the inner wall of the first pipe upstream of the runner, which is used to accelerate the flow rate of the high-pressure fluid and generate a negative pressure area between the runner and the streamlined baffle; that is, the high-pressure fluid first flows through the streamlined baffle to accelerate the flow rate of the high-pressure fluid; then, the high-pressure fluid with accelerated flow rate flows through the runner, driving the runner to rotate counterclockwise.

[0009] As a further improvement of the present invention, the installation height of the streamlined baffle is d for:

[0010] ;

[0011] In the formula, c It is the vertical distance between the edge of the runner and the inner wall of the first pipe.

[0012] As a further improvement of the present invention, the rotating wheel includes an axle and a plurality of blades arranged on the axle, wherein the blades are directly fixed to the axle, or the blades are fixed to an axle sleeve, wherein the axle sleeve is sleeved on the axle and moves relative to the axle.

[0013] As a further improvement of the present invention, the installation position and size of the rotating wheel are:

[0014] ;

[0015] In the formula, D 1 is the diameter of the first pipe, D 2 is the diameter of the second pipe, a is the vertical distance from the center of the runner to the inner wall of the second pipe, c is the vertical distance between the edge of the runner and the inner wall of the first pipe, e , f is the vertical distance between the runner and the inner wall of the second pipe on both sides, L is the overall width of all wheels, R is the radius of the wheel.

[0016] As a further improvement of the present invention,

[0017] ;

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] When the high-pressure fluid of the present invention flows in the first pipeline, it impacts the edge of the runner, causing the runner to rotate. Under the combined action of the high-pressure fluid and the runner, a negative pressure area (the area between the runner and the streamlined baffle) is formed on the upstream side of the runner, so that the low-pressure fluid in the second pipeline passes through the negative pressure area and enters the confluence area under less resistance, thereby reducing the energy loss of the confluence fluid.

[0020] The present invention carries part of the low-pressure fluid and mixes it with the high-pressure fluid by the rotation of the runner, and at the same time aggravates the fluid disturbance in the confluence area, thereby enhancing the mixing effect of the two fluids. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1It is a schematic structural diagram of a fluid converging device capable of realizing rapid mixing of fluids disclosed in the present invention;

[0022] Figure 2 for Figure 1 Middle AA section view;

[0023] Figure 3 for Figure 1 Schematic diagram of the structure of the runner.

[0024] In the figure:

[0025] 1. First pipeline; 2. Second pipeline; 3. Rotor; 3-1. Axle; 3-2. Axle sleeve; 3-3. Blade; 4. Streamlined baffle. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] The present invention is further described in detail below in conjunction with the accompanying drawings:

[0028] like Figure 1 , Figure 2 As shown, the present invention provides a fluid converging device capable of achieving rapid mixing of fluids, comprising: a first pipe 1 for high-pressure fluid to flow in and a second pipe 2 for low-pressure fluid to flow in, the first pipe 1 is connected to the second pipe 2 to achieve the converging and mixing of high-pressure fluid and low-pressure fluid; the first pipe 1 and the second pipe 2 can be pipes, pipe galleries or similar fluid channels, the high-pressure fluid is a high-pressure fluid relative to the low-pressure fluid, and the low-pressure fluid is a low-pressure fluid relative to the high-pressure fluid, and the present invention is not limited to the specific pressures of the two fluids; at the same time, the connection angle between the first pipe 1 and the second pipe 2 can be vertically set or set at a certain angle; on the basis of the above structure, it can also be expanded to connect multiple second pipes 2 on the first pipe 1 to achieve the converging and mixing of high-pressure fluid and multiple low-pressure fluids. Furthermore, the shapes of the first pipe 1 and the second pipe 2 are not limited, and can be cylindrical pipes or rectangular pipes, etc.; Figure 1 , Figure 2 The first pipe 1 shown is a cylindrical pipe with a diameter of D 1 , the second pipe 2 is a cylindrical pipe with a diameter of D 2 , D 1 andD 2 There is no limit on the size. The material of the first pipe 1 and the second pipe 2 is not limited, and any material that meets the fluid transportation requirements can be used, such as carbon steel, stainless steel, PVC, PE, PP, PPR, PVDF, etc.

[0029] The present invention provides at least one runner 3 in the second pipeline 2. Figure 2 As shown, two runners 3 are provided; the edge of each runner 3 is placed in the first pipe 1, and when the high-pressure fluid flows through the runner 3, it drives the runner 3 to rotate counterclockwise, so that a negative pressure area is formed on the upstream side of the runner 3. Specifically:

[0030] by Figure 2 Taking the two wheels shown in the figure as an example, the two wheels can be a whole or two independent parts, and the lengths can be equal (both L / 2) or unequal; there is a fixed or unfixed spacing between the two wheels. The two wheels can also be further divided into multiple wheels, the lengths of the multiple wheels can be equal or unequal, and there is a fixed or unfixed spacing between the multiple wheels. Figure 3 As shown, the impeller 3 is composed of a plurality of blades 3-3, and the blades 3-3 are connected to the axle 3-1 or the axle sleeve 3-2; the blades 3-3 can be directly fixedly installed on the axle 3-1, and the two remain relatively still during rotation; the blades 3-3 can be connected to the axle sleeve 3-2, and the axle 3-1 and the sleeve 3-2 are not fixedly installed, and the axle 3-1 only supports the sleeve 3-2, and the two move relative to each other during rotation. The blades are not limited to rectangles, and can be made into various shapes or various hollow patterns. The number of blades of the impeller is unlimited, and the installation angle between any two impellers is unlimited; it is recommended that the number of blades is not less than 3, and the installation angles are evenly distributed.

[0031] The installation position and size of the runner are:

[0032] ;

[0033] In the formula, D 1 is the diameter of the first pipe, D 2 is the diameter of the second pipe, a is the vertical distance from the center of the runner to the inner wall of the second pipe, c is the vertical distance between the edge of the runner and the inner wall of the first pipe, e , f is the vertical distance between the runner and the inner wall of the second pipe on both sides, L is the overall width of all wheels, R is the radius of the wheel.

[0034] Preferably,

[0035] ;

[0036] ，b It is the vertical distance between the center of the runner and the inner wall of the first pipe; that is, the center of the runner is located in the second pipe, and the rotating edge of the runner is located in the first pipe.

[0037] The present invention provides a streamlined baffle 4 on the inner wall of the first pipe 1 upstream of the runner 3, which is used to accelerate the flow rate of the high-pressure fluid and generate a negative pressure area between the runner 3 and the streamlined baffle 4; that is, the high-pressure fluid first flows through the streamlined baffle 4 to accelerate the flow rate of the high-pressure fluid; then, the accelerated high-pressure fluid flows through the runner, driving the runner to rotate counterclockwise. The installation height of the streamlined baffle is d for: , c It is the vertical distance between the edge of the runner and the inner wall of the first pipe. Further, the material of the streamlined baffle 4 is not limited and can be selected according to actual use.

[0038] The working principle and advantages of the present invention are:

[0039] When the high-pressure fluid flows in the first pipe, it impacts the edge of the runner, causing the runner to rotate counterclockwise. The rotation of the runner accelerates the low-pressure fluid. Under the combined action of the high-pressure fluid and the runner, a negative pressure area (the area between the runner and the streamlined baffle) is formed on the upstream side of the runner at the end of the second pipe, generating suction for the low-pressure fluid that is about to enter the area, allowing the low-pressure fluid to enter the confluence area through the negative pressure area with less resistance, thus avoiding the problem that when fluids with different pressures converge, the confluence volume of the low-pressure fluid is greatly reduced, or even cannot enter the return pipe, thereby improving system efficiency.

[0040] The present invention carries part of the low-pressure fluid and mixes it with the high-pressure fluid by rotating the impeller. Under the joint action of the high-pressure fluid and the impeller, the fluid disturbance in the confluence area is intensified, the mixing effect of the two fluids is enhanced, the problem of uneven mixing of the two fluids after confluence is improved, and the system efficiency is improved.

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fluid confluence device capable of achieving rapid mixing of fluids, characterized in that: include: a first pipeline for the inflow of high-pressure fluid and a second pipeline for the inflow of low-pressure fluid, wherein the first pipeline is connected to the second pipeline; At least one rotor is arranged in the second pipeline, and the edge of each rotor is placed in the first pipeline; when the high-pressure fluid flows through the rotor, the rotor is driven to rotate counterclockwise, so that a negative pressure area is formed on the upstream side of the rotor; A streamlined baffle is provided on the inner wall of the first pipe upstream of the runner, for accelerating the flow rate of the high-pressure fluid and generating a negative pressure area between the runner and the streamlined baffle; The installation position and size of the runner are: ； In the formula, D 1 is the diameter of the first pipe, D 2 is the diameter of the second pipe, a is the vertical distance from the center of the runner to the inner wall of the second pipe, c is the vertical distance between the edge of the runner and the inner wall of the first pipe, e , f is the vertical distance between the runner and the inner wall of the second pipe on both sides, L is the overall width of all wheels, R is the radius of the wheel.

2. The fluid confluence device capable of achieving rapid fluid mixing as claimed in claim 1, characterized in that: The installation height of the streamlined baffle d for: ； In the formula, c It is the vertical distance between the edge of the runner and the inner wall of the first pipe.

3. The fluid confluence device capable of achieving rapid fluid mixing as claimed in claim 1, characterized in that: The rotating wheel comprises a wheel axle and a plurality of blades arranged on the wheel axle, wherein the blades are directly fixed to the wheel axle, or the blades are fixed to a wheel axle sleeve, and the wheel axle sleeve is sleeved on the wheel axle and moves relative to the wheel axle.

4. The fluid confluence device capable of achieving rapid fluid mixing as claimed in claim 1, characterized in that: 。

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