Pipeline fluid flow distribution device
By setting up a spiral baffle in the main pipe, the fluid cross-section of the main pipe is divided into the same number as the number of tributary pipes, forming a parallel flow channel, and each flow channel is connected in series with one tributary pipe, which solves the problem of difficult to achieve uniform distribution of fluid flow in the main pipe in the prior art, and achieves a low-cost and high-feasibility fluid distribution effect.
Patent Information
- Application Number
- CN202510084020.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2025-06-06
AI Technical Summary
The prior art is difficult to achieve even distribution of main pipeline fluid flow to multiple tributary pipelines in the agricultural irrigation and chemical industries, especially in cost-sensitive industries, where traditional methods are costly and difficult to meet the requirements of flow uniformity.
By setting up a spiral baffle in the main pipe, the fluid section of the main pipe is divided into the same number as the number of tributary pipes, forming a parallel flow channel, each flow channel is connected in series with one tributary pipe to achieve uniform distribution of fluid.
The fluid flow rate of the main pipeline is uniformly distributed to multiple tributary pipelines, reducing costs and improving feasibility, and easy to control the flow rate of each tributary pipeline.
Smart Images
Figure CN120100984A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a pipeline fluid flow distribution device. Background Art
[0002] When the fluid in the main pipeline needs to be distributed to multiple branch pipelines on the flow path, a fluid distribution device will be used.
[0003] In agricultural irrigation, the common working mode of pipelines is: water flows from the main pipeline to each branch pipeline, and then continuously branches to form multiple water flow branches for spraying, so that crops can be evenly irrigated. In the chemical industry, some fluids are also distributed from the main pipeline to multiple branch pipelines, and then enter different containers for mixing or reaction, and the flow rates of each branch pipeline are required to be close to prevent uneven mixing or insufficient reaction.
[0004] The distribution methods used in the above two situations are: one is to simply open multiple parallel holes in the main pipeline along the flow direction and install branch pipes, relying on water pressure to press the fluid in the main pipeline to each branch pipeline in turn. This simple method is low-cost and has high feasibility, but it is difficult to control the uniformity of the flow of each branch pipeline, especially when the above-mentioned chemical industry usage scenario has high requirements for flow uniformity, it may be difficult to meet. Another method is to install a flow valve on the main pipeline or branch pipeline and adjust the flow through the valve device. This method can control the uniformity of the flow more accurately, but when there are many branch flow pipelines, installing a regulating valve at each branch or each branch pipeline may cause an increase in cost, which is not very applicable in cost-sensitive industries such as agricultural irrigation and chemical industry. Summary of the invention
[0005] The present invention overcomes the shortcomings of the above-mentioned technology and provides a device for uniformly distributing the fluid flow of a main pipeline to multiple branch pipelines. According to the number of branch pipelines actually required, the fluid cross-section of the main pipeline is evenly divided into the same number as the number of branch pipelines to form the same number of parallel flow channels. Each flow channel is connected in series with a corresponding branch pipeline, so that the fluid in the flow channel of the main pipeline flows to the branch pipeline. The device has low cost, high feasibility, and is convenient for controlling the uniformity of the flow of each branch pipeline.
[0006] To achieve the above object, the present invention adopts the following technical solutions:
[0007] A pipeline fluid flow distribution device comprises: a main pipeline, a water inlet is provided at one end of the main pipeline, a water outlet is provided at the other end of the main pipeline, a support shaft is arranged in the main pipeline, an annular flow channel is formed between the main pipeline and the outer wall of the support shaft, a spiral baffle is provided in the annular flow channel, the spiral baffle divides the annular flow channel between the main pipeline and the support shaft into a spiral flow channel, a branch water outlet is provided on the spiral flow channel, and a branch pipeline is provided on the branch water outlet.
[0008] Preferably, as described above, there are multiple spiral baffles, multiple branch outlets, and multiple branch pipes.
[0009] Preferably, as described above, the number of the branch flow pipes is the same as the number of the spiral baffles, and the number of the branch flow outlets is the same as the number of the spiral baffles.
[0010] Preferably, as mentioned above, the number of the spiral baffles is 4 to 12, the number of the branch water outlets is 4 to 12, and the number of the branch pipes is 4 to 12.
[0011] Preferably, as mentioned above, flanges are provided at both ends of the main pipeline.
[0012] Preferably, a mounting hole is provided on the flange as mentioned above.
[0013] Preferably, as mentioned above, the support shaft is a hollow circular tube with both ends closed.
[0014] Preferably, as mentioned above, the extension angle of the branch flow conduit is adjustable.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] 1. The present invention provides a pipeline fluid flow distribution device, which provides a device for uniformly distributing the fluid flow of a main pipeline to multiple branch pipelines. According to the number of branch pipelines actually required, the fluid cross-section of the main pipeline is evenly divided into the same number as the number of branch pipelines to form the number of parallel flow channels, and each flow channel is connected in series with a corresponding branch pipeline, so that the fluid in the flow channel of the main pipeline flows to the branch pipeline, which has low cost, high feasibility, and is convenient for controlling the uniformity of the flow of each branch pipeline.
[0017] 2. The present invention provides a pipeline fluid flow distribution device, which divides the cross-sectional fluid into several equal parts through a spiral baffle to form several spiral flow channels. Each spiral flow channel branches out a branch pipe at the same angle, and the flow rates of the several branch pipes are the same, thereby achieving the purpose of evenly distributing the flow rate. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a stereoscopic view of the present invention.
[0019] Figure 2 It is one of the exploded views of the present invention.
[0020] Figure 3 This is the second exploded view of the present invention.
[0021] Figure 4 It is a side view of the present invention.
[0022] Figure 5 yes Figure 4 AA section view in. DETAILED DESCRIPTION
[0023] The features of the present invention and other related features are further described in detail below through embodiments to facilitate understanding by technicians in the same industry.
[0024] In this embodiment, it should be understood that the terms "middle", "upper", "lower", "top", "right", "left end", "above", "back", "middle", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0025] like Figures 1 to 5 As shown, a pipeline fluid flow distribution device comprises: a main pipeline 1, a water inlet 11 is provided at one end of the main pipeline 1, a water outlet 12 is provided at the other end of the main pipeline 1, a support shaft 2 is arranged in the main pipeline 1, an annular flow channel 3 is formed between the outer wall of the main pipeline 1 and the support shaft 2, a spiral baffle 4 is arranged in the annular flow channel 3, the spiral baffle 4 divides the annular flow channel 3 between the main pipeline 1 and the support shaft 2 into a spiral flow channel 31, a branch water outlet 32 is provided on the spiral flow channel 31, and a branch pipeline 5 is provided on the branch water outlet 32. The present invention provides a pipeline fluid flow distribution device, and provides a device for uniformly distributing the fluid flow of a main pipeline to a plurality of branch pipelines, according to the number of branch pipelines actually required, the fluid cross section of the main pipeline is evenly divided into the same number as the number of branch pipelines to form the number of parallel flow channels, and each flow channel is respectively connected in series with a corresponding branch pipeline, so that the fluid in the flow channel of the main pipeline flows to the branch pipeline, with low cost and high feasibility, and convenient for controlling the uniformity of the flow of each branch pipeline.
[0026] like Figure 1 , Figure 2 , Figure 3 As shown, in this embodiment, the number of the spiral baffles 4 is multiple, the number of the branch outlets 32 is multiple, and the number of the branch pipes 5 is multiple. The pipeline fluid flow distribution device divides the cross-sectional fluid into several equal parts through the spiral baffles to form several spiral flow channels. Each spiral flow channel branches out a branch pipe at the same angle, and the flow rates of the several branch pipes are the same, thereby achieving the purpose of evenly distributing the flow rate.
[0027] like Figure 1 , Figure 2 ,, Figure 3As shown, in this embodiment, the number of the branch pipes 5 is the same as the number of the spiral baffles 4, and the number of the branch outlets 32 is the same as the number of the spiral baffles 4. The pipeline fluid flow distribution device divides the cross-sectional fluid into several equal parts through the spiral baffles to form several spiral flow channels, and each spiral flow channel branches out a branch pipe at the same angle, and the flow rates of several branch pipes are the same, thereby achieving the purpose of evenly distributing the flow rate.
[0028] like Figure 1 , Figure 2 ,, Figure 3 As shown, in this embodiment, the number of the spiral baffles 4 is 4 to 12, the number of the branch outlets 32 is 4 to 12, and the number of the branch pipes 5 is 4 to 12. The pipeline fluid flow distribution device divides the cross-sectional fluid into several equal parts through the spiral baffles to form several spiral flow channels, and each spiral flow channel branches out a branch pipe at the same angle, and the flow rates of several branch pipes are the same, thereby achieving the purpose of evenly distributing the flow rate.
[0029] like Figure 1 , Figure 2 ,, Figure 3 As shown, in this embodiment, flanges 13 are provided at both ends of the main pipeline 1 to facilitate the assembly of the pipeline fluid flow distribution device.
[0030] like Figure 1 , Figure 2 ,, Figure 3 As shown, in this embodiment, the flange 13 is provided with a mounting hole 131 to facilitate the assembly of the pipeline fluid flow distribution device.
[0031] like Figure 1 , Figure 2 ,, Figure 3 , Figure 4 , Figure 5 As shown, in this embodiment, the support shaft 2 is a hollow circular tube with closed ends, which is used to install and fix the spiral baffle, reduce weight and reduce production costs.
[0032] like Figure 1 , Figure 2 ,, Figure 3 As shown, in this embodiment, the extension angle of the branch pipe 5 is adjustable, and the angle of the branch pipe 5 can be changed to horizontal or downward, provided that the angles of the branch pipes remain consistent and are only connected to one flow channel.
[0033] The present technical solution provides a low-cost device for evenly distributing the fluid flow of a main pipeline to a plurality of branch pipelines. The implementation idea is as follows: according to the number of branch pipelines actually required, the pipeline fluid cross-section is evenly divided into the same number of parts as the number of branch pipelines to form the same number of parallel flow channels, and each flow channel is connected in series with a corresponding branch pipeline so that the fluid in the flow channel flows to the branch pipeline.
[0034] The detailed implementation method is: by placing N spiral baffles in the horizontal main pipe (generally circular), N spiral flow channels are formed, the spiral direction is the same as the flow direction, and the heads of multiple baffles are perpendicular to the flow direction, and the fluid with a cross-sectional flow rate of 1 is evenly divided into N flow channels. Theoretically, the flow rate of each flow channel is 1 / N. N holes are opened at the same radial angle on the wall of the main pipe, and branch pipes of equal length are installed respectively. The number of branch pipes is N, and the spacing depends on the pitch of the N spiral baffles, that is, each flow channel is connected to a branch pipe. Ideally, the flow rate of each flow channel to the branch pipe is the same.
[0035] N spiral baffles are installed on a support shaft concentric with the main pipeline, and the spiral baffles are between the outer wall of the support shaft and the inner wall of the main pipeline. The inner diameter of the main pipeline 1 is D, the outer diameter of the support shaft 2 is d (D>d), the initial fluid flow rate entering the main pipeline section is 1, and the cross-sectional area S1 is Then the average velocity V1 of the cross-sectional fluid is V1=4 / πD 2 When the cross-sectional fluid flows into the annular area formed between the support shaft and the main pipeline, the flow cross-sectional area S2 is S2 = π (D 2 -d 2 ) / 4, the average cross-sectional velocity V2 is V2=4 / π(D 2 -d 2 The velocity of the fluid in the N channels is theoretically equal to V2. It can be seen that after the fluid is divided and enters each spiral channel, the velocity increases compared to before entering the channel, the water pressure increases, and it is easier to be pressed into the branch pipe, where S1 is the cross-sectional area of the main pipe 1, and S2 is the cross-sectional area of the annular channel 3.
[0036] The fluid enters from the main pipeline inlet, and the flow is evenly divided into 8 flow channels between the 8 baffles by 8 spiral baffles. The flow channels are not connected to each other. During the flow of the fluid forward along the flow channel, part of the fluid flows into the branch pipe from the opening above each flow channel, and the rest continues to flow forward along the flow channel and flows out from the outlet. The support shaft is a hollow circular tube with closed ends, which is used to install and fix the spiral baffle.
[0037] The key device of this technical solution is the support shaft and the spiral baffle installed on it. There are two ways to use it. One is to connect the front and rear pipes of the main pipe inlet and outlet through the flange-seal ring, and evenly guide the fluid in the pipe to each branch pipe. The other method is to install the support shaft and spiral baffle into the main pipe for flow diversion at the fluid branch where the main pipe and branch pipes are already available.
[0038] The branch pipe angle can be changed to horizontal or downward, provided that the branch pipe angle is consistent and only connected to one flow channel.
[0039] This device is not suitable when the fluid in the main pipeline does not fill the pipeline.
[0040] A method for distributing fluid in a pipeline, which divides the cross-section of the fluid into N equal parts by a spiral baffle to form N series flow channels, each flow channel branches out a branch pipeline at the same angle, and the flow rates of the N branch pipelines are the same, so as to achieve the purpose of evenly distributing the flow rate.
[0041] Parameters such as the number of branch pipes (number of spiral baffles) N, the inner diameter of the main pipe D, the outer diameter of the support shaft d, and the pitch of the spiral baffle can be designed according to actual needs;
[0042] The angle of the branch pipes can be changed but needs to be consistent.
[0043] The above are only typical embodiments of the present invention. In addition, the present invention may also have many other specific implementations. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.
Claims
1. A pipeline fluid flow distribution device, characterized in that: include: A main pipeline (1), wherein one end of the main pipeline (1) is provided with a water inlet (11), and the other end of the main pipeline (1) is provided with a water outlet (12); a support shaft (2) is arranged in the main pipeline (1); an annular flow channel (3) is formed between the outer walls of the main pipeline (1) and the support shaft (2); a spiral baffle (4) is arranged in the annular flow channel (3); the spiral baffle (4) divides the annular flow channel (3) between the main pipeline (1) and the support shaft (2) into a spiral flow channel (31); a branch water outlet (32) is arranged on the spiral flow channel (31); and a branch pipeline (5) is arranged on the branch water outlet (32).
2. The pipeline fluid flow distribution device according to claim 1, characterized in that: The number of the spiral baffles (4) is multiple, the number of the branch water outlets (32) is multiple, and the number of the branch pipes (5) is multiple.
3. The pipeline fluid flow distribution device according to claim 2, characterized in that: The number of the branch flow pipes (5) is the same as the number of the spiral baffles (4), and the number of the branch flow outlets (32) is the same as the number of the spiral baffles (4).
4. The pipeline fluid flow distribution device according to claim 2, characterized in that: The number of the spiral baffles (4) is 4 to 12, the number of the branch water outlets (32) is 4 to 12, and the number of the branch pipes (5) is 4 to 12.
5. The pipeline fluid flow distribution device according to claim 1, characterized in that: Flange plates (13) are provided at both ends of the main pipeline (1).
6. The pipeline fluid flow distribution device according to claim 5, characterized in that: The flange (13) is provided with a mounting hole (131).
7. The pipeline fluid flow distribution device according to claim 1, characterized in that: The support shaft (2) is a hollow circular tube with closed ends.
8. The pipeline fluid flow distribution device according to claim 1, characterized in that: The extension angle of the branch pipe (5) is adjustable.