Experimental device for uniformly releasing fluid
By designing a fluid release device with an outer throttling orifice and an inner detour path, the shortcomings of fluid release devices in terms of speed uniformity and applicability are solved. This achieves uniform distribution of fluid speed along the axial direction and wide applicability, and has the advantages of simple structure and low cost.
Patent Information
- Application Number
- CN202410933723.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2026-01-13
AI Technical Summary
Existing fluid release devices have shortcomings in terms of the uniformity and applicability of fluid outlet velocity, especially due to limitations imposed by fluid type, flow rate, pipe material and size, resulting in uneven outlet velocity distribution and a limited range of applicability.
The design employs an outer throttling orifice structure and an inner meandering passage structure to ensure that the fluid pressure on both sides is the same and that the fluid is evenly distributed through the meandering passage, thereby achieving uniform axial release of fluid velocity. It is suitable for various fluids and pipe types.
It achieves uniform fluid velocity distribution along the axial direction, has a wide range of applications, simple structure, low cost, and convenient operation, and is suitable for pipes of various materials and sizes.
Smart Images
Figure CN121330980A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The embodiment of the present application belongs to the technical field of fluid mechanics experiment, and specifically relates to an experimental device for flow display. BACKGROUND
[0002] In the process of fluid mechanics experiment, we usually need to use a fluid release device to control the release of fluid. At present, there are three main types of devices for uniformly releasing fluid: the first technology involves a release pipe, the inner diameter of which is designed to gradually decrease along the fluid flow direction. However, once the structure size is determined, such a release pipe is only suitable for a specific fluid outlet velocity, limiting its applicability. The second technology uses a series of small holes opened in the axial direction of the pipe. Fluid can enter from one end of the pipe or simultaneously from both ends. However, as the fluid flows in the pipe, its outlet velocity gradually decreases, resulting in poor uniformity of outlet velocity along the axial direction. The third technology uses two axially aligned and mutually nested pipes. By opening a series of small holes on the inner and outer pipes, respectively, and by adjusting the hole diameters of these small holes, a more uniform outlet flow rate can be achieved. Although the above methods can meet the needs of fluid release, the size and distribution of the release holes may be affected by the fluid inlet flow rate and the inner and outer pipe diameters. SUMMARY
[0003] The purpose of the embodiment of the present application is to design a new fluid release piece with universality according to the existing technical defects.
[0004] The embodiment of the present application can achieve uniform distribution of fluid velocity along the axial direction at the release port. It is suitable for various fluids and is not limited by the type and flow rate of the fluid, the material of the connecting pipe, the type and size of the pipe.
[0005] To achieve the above purpose, the embodiment of the present application adopts the following technical solutions:
[0006] The embodiment of the present application includes:
[0007] The outer layer structure includes an outer shell, two symmetrical throttle holes with the same diameter arranged on the outer shell, and a series of uniformly arranged release holes communicating with the release space.
[0008] The inner layer structure includes a detour passage, a release space, and a plurality of holes connecting the detour passage and the release space.
[0009] Fluid enters the detour passage through the two throttle holes with the same size on the top of the embodiment of the present application, enters the release space through the holes above the detour passage, and is finally released from the experimental device through the release holes above the embodiment of the present application.
[0010] The throttling holes on the two sides of the embodiment of the application can ensure that the fluid pressure entering the device from the two sides of the throttling holes is the same. Because the areas of the circular throttling holes are the same, the speeds of the two fluid streams entering the device can be ensured to be the same.
[0011] The post-entry pressure of the fluid on the two sides of the device linearly decreases with the flow distance, and the pressure is ensured to be uniformly distributed along the axial direction in the experimental device by averaging the pressures of the two water streams, and the uniform pressure distribution can realize the uniform distribution of the speed of the release port of the release member along the axial direction.
[0012] Compared with the prior art, the embodiment of the application has the following advantages:
[0013] Preferably, the experimental device can be adjusted in size according to actual application conditions.
[0014] Preferably, the experimental device can be selected from a variety of materials according to actual application conditions.
[0015] Preferably, the pipe used for inputting fluid by the experimental device includes but is not limited to various pipe types such as circular pipes and square pipes.
[0016] Preferably, the experimental device solves the problems of non-uniform outlet speed distribution and small application range in the prior art by averaging the pressures of the two fluid streams.
[0017] Preferably, the experimental device realizes the uniform pressure of the fluid entering the experimental device through the throttling holes of the same size.
[0018] Preferably, the experimental device solves the problems of complex structure and high manufacturing cost in the prior art through the integrated structure.
[0019] Compared with the prior art, the embodiment of the application has the following advantages:
[0020] The embodiment of the application is not limited by the type and flow rate of the fluid and the material and size of the pipe. It has the advantages of simple structure, low manufacturing cost and convenient operation. BRIEF DESCRIPTION OF DRAWINGS
[0021] Fig. 1 and Fig. 2 is The overall structure schematic diagram of the embodiment of the application.
[0022] Fig. 3 is The release hole structure schematic diagram of the embodiment of the application.
[0023] Fig. 4 The internal structure perspective view of the embodiment of the application.
[0024] Fig. 5 and Fig. 6 is The internal structure perspective view of the embodiment of the application.
[0025] Wherein 1. release hole; 2. bypass passage; 3. throttle hole 1; 4. throttle hole 2. Embodiments
[0026] The accompanying drawings are incorporated in and constitute a part of this specification. Fig. 1 shows The embodiments of the present application are described in further detail as follows:
[0027] According to the embodiments of the present application, the external shell is a cuboid with the size of 184mmx9mmx15mm, the throttle holes on the surface are circles with the diameter of 3mm, and the release hole on the top is a row of circles with the diameter of 1mm.
[0028] The use and operation process of the embodiments of the present application are described as follows:
[0029] 1. Connect two sections of injection tubes to the throttle holes on both sides of the experimental device.
[0030] 2. Inject fluids into the experimental device from the two injection tubes respectively, so that the fluids enter the experimental device through the throttle holes connected thereto, and then enter the release space through the hole on the top of the bypass passage.
[0031] 3. Finally, release the fluids through the release hole on the top of the experimental device, and observe and record the release phenomenon.
Claims
1. A liquid release device capable of achieving uniform axial velocity distribution at the outlet, characterized in that, include: The outer structure includes an outer shell (1), two symmetrically distributed circular inlets and outlets (2) with the same diameter on the outer shell, and a series of uniformly arranged circular release holes (3) communicating with the release space. The inner structure includes a meandering path (4), a release space (5), and two rows of channels (6) that are opened in the meandering path and connected to the release space.
2. A liquid release device according to claim 1 that enables uniform axial distribution of outlet velocity, characterized in that, Two inlets (2) ensure that the liquid pressure in the space connected by the final release hole is the same.
3. A liquid release device according to claim 1 that enables uniform axial distribution of outlet velocity, characterized in that... After the liquids on both sides enter the meandering passage (4), the pressure decreases linearly with the vector, and the two pressure decreases to the same degree on the same tangent.
4. A liquid release device according to claim 1 that enables uniform axial distribution of outlet velocity, characterized in that... The function of the release space (5) is to achieve the pressure distribution of the two water streams as described in claim 3, and to ensure that the pressure in the experimental device is uniformly distributed along the axial direction.
5. A liquid release device according to claim 1 that enables uniform axial distribution of outlet velocity, characterized in that... The uniform pressure distribution of the liquid after passing through the release hole (3) can achieve a uniform axial velocity distribution at the outlet of the release element.
6. The liquid release device that can achieve uniform distribution of outlet velocity along the axial direction according to claim 1 is characterized in that the shape of the injection tube connected to the inlet / outlet (2) can be changed according to actual use requirements without affecting the effect of the device.
7. The liquid release device according to claim 1, which can achieve uniform distribution of outlet velocity along the axial direction, is characterized in that the experimental device can be modified in terms of material and size according to actual use without affecting the performance of the device.
8. A liquid release device that can achieve uniform distribution of outlet velocity along the axial direction according to claim 1, characterized in that the experimental device solves the problems of uneven outlet velocity distribution and limited applicability in the prior art by averaging the liquid pressure on both sides.
9. A liquid release device that can achieve uniform distribution of outlet velocity along the axial direction according to claim 1, characterized in that the experimental device is an integrated structure, which solves the problems of complex structure and high manufacturing cost of existing experimental devices.