Rotational-flow pollution-resisting and noise-reducing variable-diameter elbow and building drainage system

Abstract

The utility model discloses a rotational flow dirt-resisting noise-reducing variable-diameter elbow and a building drainage system, the rotational flow dirt-resisting noise-reducing variable-diameter elbow comprises a water inlet elbow structure and a water outlet elbow structure, the water inlet elbow structure and the water outlet elbow structure form an internal channel for water circulation, and a guide vane carrier is arranged in the internal channel. The guide vane carrier is provided with a spiral rotational flow guide vane capable of rotating relative to the internal channel; when water enters the water inlet end, water flow enters the inner channel through the water inlet elbow structure and flows to the water outlet elbow structure in the rotating direction of the rotational flow guide piece so as to be discharged to the water outlet end. According to the rotational-flow dirt-resisting and noise-reducing variable-diameter elbow, the rotational-flow guide pieces are arranged in the inner channel, so that water flow is effectively guided to flow in the spiral direction, direct impact of the water flow on the pipe wall is reduced, noise and vibration are reduced, and the problems that in the prior art, water flow impact sound is large, noise is high, vibration is obvious, and pipe fittings are prone to being damaged are solved; the service life of the pipe fitting and the operation stability of the drainage system are obviously improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drainage structures, and particularly relates to a swirl flow pollution resistance, noise reduction and diameter-varying elbow and a building drainage system. Background Art

[0002] In the related art, the turning and diameter-varying elbows widely used in fluid conveying systems are usually used to change the flow direction and pipe diameter of the fluid in the pipeline. However, in actual use, due to the high-speed impact of water flow, the turning and diameter-varying elbows often generate relatively large noise and vibration. This kind of noise not only affects the quiet operation of the system, but also may have an adverse impact on the surrounding environment. In addition, the water flow impact will also form a strong impact force inside the pipe fitting, and long-term use will cause wear to the pipe wall and even damage, resulting in problems such as leakage. Especially in the environment of high-pressure fluid or frequent use, the risk of pipe fitting damage is more significant, which greatly affects the reliability and service life of the pipeline system.

[0003] The existing technical solutions have not been able to effectively solve these problems. How to reduce the noise and vibration caused by water flow impact and at the same time improve the durability of the pipe fitting is a technical problem that urgently needs to be solved at present. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a swirl flow pollution resistance, noise reduction and diameter-varying elbow and a building drainage system to at least solve the technical problem of large noise mentioned in the related art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] In the first aspect of the utility model, a swirl flow pollution resistance, noise reduction and diameter-varying elbow is provided, which is applied to a building drainage system. The swirl flow pollution resistance, noise reduction and diameter-varying elbow includes an inlet elbow structure for connecting with an inlet end and an outlet elbow structure for connecting with an outlet end. The inner diameter of the inlet elbow structure is different from that of the outlet elbow structure. An internal channel for water flow is formed between the inlet elbow structure and the outlet elbow structure. A guide vane carrier is arranged in the internal channel, and a spiral swirl guide vane that can rotate relative to the internal channel is arranged on the guide vane carrier. When water enters from the inlet end, the water flow enters the internal channel through the inlet elbow structure and flows towards the outlet elbow structure along the rotation direction of the swirl guide vane, so as to be discharged to the outlet end.

[0007] In the second aspect of the utility model, a building drainage system is provided, which includes an inlet pipe body, an outlet pipe body and the swirl flow pollution resistance, noise reduction and diameter-varying elbow as described in the first aspect. The inlet pipe body is connected to the swirl flow pollution resistance, noise reduction and diameter-varying elbow, and the outlet pipe body is connected to the swirl flow pollution resistance, noise reduction and diameter-varying elbow.

[0008] The swirl pollution - resistant, noise - reducing and diameter - varying elbow and building drainage system of the present utility model include an inlet elbow structure for connecting to the inlet end and an outlet elbow structure for connecting to the outlet end. The inner diameter of the inlet elbow structure is different from that of the outlet elbow structure. An internal channel for water flow is formed between the inlet elbow structure and the outlet elbow structure, and a guide - piece carrier is arranged in the internal channel. A spiral swirl guide piece that can rotate relative to the internal channel is arranged on the guide - piece carrier. When water enters from the inlet end, the water flow enters the internal channel through the inlet elbow structure and flows towards the outlet elbow structure along the rotation direction of the swirl guide piece, and then is discharged to the outlet end. Based on the above - mentioned technical solution, the swirl pollution - resistant, noise - reducing and diameter - varying elbow of the present utility model effectively guides the water flow to flow along a spiral direction by arranging the swirl guide piece in the internal channel, blocks pollutants or solid particles, reduces the direct impact of the water flow on the pipe wall, reduces the generation of noise and vibration, solves the problems of large water - flow impact sound, high noise, obvious vibration and easy damage of pipe fittings in the prior art, and significantly improves the service life of pipe fittings and the operation stability of the drainage system. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 is a three - dimensional schematic diagram of the swirl pollution - resistant, noise - reducing and diameter - varying elbow of the present utility model;

[0010] Figure 2 is a schematic diagram of the internal structure of the swirl pollution - resistant, noise - reducing and diameter - varying elbow of the present utility model;

[0011] Figure 3 is a top - view of the inlet elbow structure of the swirl pollution - resistant, noise - reducing and diameter - varying elbow of the present utility model;

[0012] Figure 4 is a schematic diagram of the structure of the guide - piece carrier and the swirl guide piece of the swirl pollution - resistant, noise - reducing and diameter - varying elbow of the present utility model;

[0013] Reference numerals: swirl pollution - resistant, noise - reducing and diameter - varying elbow 1, inlet elbow structure 10, outlet elbow structure 30, fixed - ring assembly 40, internal channel 50, guide - piece carrier 60, swirl guide piece 70, auxiliary flow channel 65. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present application.

[0015] It should be noted that relevant terms such as "first", "second", etc. can be used to describe various components, but these terms do not limit the components. These terms are only used to distinguish one component from another. For example, without departing from the scope of the present utility model, the first component can be called the second component, and similarly, the second component can also be called the first component. The term "and / or" refers to any combination of one or more of the related items and the described items.

[0016] Please refer to Figure 1 、 Figure 2 and Figure 3 , this embodiment provides a swirl flow pollution - resistant and noise - reducing variable - diameter elbow. The swirl flow pollution - resistant and noise - reducing variable - diameter elbow 1 is applied to a building drainage system. It at least includes an inlet elbow structure 10 and an outlet elbow structure 30. The inlet elbow structure 10 is mainly used to connect to the inlet end, and the outlet elbow structure 30 is mainly used to connect to the outlet end, so that the water in the building drainage system enters through the inlet elbow structure 10 and is discharged from the outlet elbow structure 30. In addition, the inlet elbow structure 10 and the outlet elbow structure 30 are approximately at a 90 - degree angle, and the inner diameter of the inlet elbow structure 10 (the inner - diameter dimension M marked in Figure 1 ) is different from the inner diameter of the outlet elbow structure 30 (the inner - diameter dimension N marked in Figure 1 ). Based on M not being equal to N, a variable - diameter elbow is formed.

[0017] The design center - line curvature radius of the variable - diameter elbow is different from the inner diameters of the straight pipes at both ends. This unique design enables it to smoothly connect pipes of different sizes and provides a smooth fluid passage at the pipe bend. This design not only ensures the continuity of fluid flow but also effectively reduces the vortices and turbulences generated by the fluid at the bend, thereby reducing the resistance loss and improving the efficiency of fluid transmission.

[0018] Specifically, the inlet elbow structure 10 and the outlet elbow structure 30 form an internal channel 50 for water flow. A guide - piece carrier 60 is arranged in the internal channel 50, and a spiral swirl guide piece 70 that can rotate relative to the internal channel 50 is arranged on the guide - piece carrier 60.

[0019] Among them, when the building drainage system drains water, that is, when water enters from the inlet end, the water flow enters the internal channel 50 through the inlet elbow structure 10 and flows towards the outlet elbow structure 30 along the rotation direction of the swirl guide piece 70 to be discharged to the outlet end.

[0020] Thus, the working principle of this swirl-flow pollution-blocking and noise-reducing variable-diameter elbow is mainly based on the function of the swirl guide vanes. By guiding and controlling the water flow, the noise reduction effect is achieved and the water flow transmission requirements of different pipe diameters are met. First, the inlet elbow structure 10 in the swirl-flow pollution-blocking and noise-reducing variable-diameter elbow is connected to the inlet end of the building drainage system, and the outlet elbow structure 30 is connected to the outlet end of the building drainage system. The inner diameters of the inlet elbow and the outlet elbow are different. This variable-diameter design is used to adapt to different pipe diameters that may exist in the building drainage system and ensure the smooth transmission of water flow. Secondly, the internal channel 50 is the main fluid channel formed by the inlet elbow structure and the outlet elbow structure. A guide vane carrier 60 is arranged in this channel, and spiral swirl guide vanes 70 are provided on the guide vane carrier 60. The swirl guide vanes 70 make the water flow rotate along the spiral direction through the spiral design, reduce the water flow velocity, and reduce the generation of turbulence, thereby effectively reducing the water flow noise. In addition, the swirl guide vanes 70 can rotate relative to the internal channel 50. As the water flow flows in, the swirl guide vanes 70 guide the water flow to perform a rotational motion. This swirl structure helps to stabilize the water flow and reduce the noise and vibration in the system. In addition, the swirl guide vanes 70 can also be used as a pollution-blocking structure, which is used to block pollutants or solid particles when the fluid passes through the elbow to prevent them from entering the downstream pipeline or equipment and ensure the drainage stability of the entire building drainage system.

[0021] In summary, when the water flow enters from the inlet end, the water flow first enters the inlet elbow structure 10. Since the inner diameter of the inlet elbow is larger, the water flow can enter the internal channel 50 relatively quickly. After reaching the guide vane carrier 60, the water flow will be affected by the spiral swirl guide vanes 70 and flow along the rotation direction of the swirl guide vanes 70, and the water flow velocity slows down during the rotation process. In this way, the water flow enters the outlet elbow structure 30 in a relatively stable state and is finally discharged to the outlet end of the building drainage system. The swirl guide vanes 70 guide the water flow to rotate in the internal channel 50, which not only reduces the turbulence in the water flow but also avoids the noise problem caused by directly hitting the elbow wall surface, thus achieving the noise reduction effect.

[0022] Please continue to refer to Figure 1 , in some alternative embodiments of this embodiment, the swirl-flow pollution-blocking and noise-reducing variable-diameter elbow further includes a tapered elbow structure 20. The tapered elbow structure 20 is arranged between the inlet elbow structure 10 and the outlet elbow structure 30. The inner diameter of the tapered elbow structure 20 is larger than the inner diameter of the inlet elbow structure 10, and the inner diameter of the tapered elbow structure 20 is larger than the inner diameter of the outlet elbow structure 30. In this embodiment, through the setting of the tapered elbow structure 20 and the relatively large inner diameter of the tapered elbow structure 20, when the water flow enters the internal channel, the radial dimension of the internal channel becomes larger and larger, which helps to slow down the water flow velocity and reduce the impact force of the water flow on the elbow wall surface.

[0023] In addition, the bottom of the guide vane carrier 60 is movably connected to the hollow part of the gradually changing elbow structure 20 in the internal channel 50, enabling the guide vane carrier 60 to move or adjust within a certain range in the internal channel 50. This connection method allows the guide vane carrier 60 to be adaptively adjusted according to the fluid flow conditions, which helps to guide the fluid flow direction, thereby optimizing the fluid flow path and reducing the flow resistance and pressure loss. That is to say, through movably connecting the guide vane carrier 60 to the hollow part of the gradually changing elbow structure, it can be flexibly adjusted according to the fluid flow requirements, improving the fluid flow efficiency and stability. The adjustability of the guide vane carrier 60 helps to optimize the fluid flow path under different flow rate conditions, reducing the generation of turbulence and eddy currents, thereby reducing energy losses.

[0024] In some alternative embodiments of the present embodiment, the inlet elbow structure 10 is a hollow cylindrical structure, the outlet elbow structure 30 is a hollow cylindrical structure, and the gradually changing elbow structure 20 is a hollow cylindrical structure. The hollow parts of the inlet elbow structure 10, the outlet elbow structure 30, and the gradually changing elbow structure 20 constitute the internal channel. In this embodiment, the inlet elbow structure 10, the outlet elbow structure 30, and the gradually changing elbow structure 20 are all designed as hollow cylindrical structures, enabling the fluid to flow smoothly. The inlet elbow structure 10 is responsible for introducing the fluid, the outlet elbow structure 30 discharges the fluid, and the gradually changing elbow structure 20 is used to adjust the fluid flow direction and flow rate, forming a continuous internal channel. The design of this channel can reduce the resistance and turbulence during fluid flow, ensuring that the fluid flows smoothly from the inlet to the outlet. That is, this design enables the fluid to achieve a smooth transition between the inlet and the outlet, thereby improving the flow efficiency of the system. By designing the interior of each elbow as a hollow structure, it ensures unobstructed fluid flow throughout the channel, reducing energy losses. In addition, the use of the gradually changing elbow structure can effectively reduce the pressure loss caused by the elbow change, thereby optimizing the fluid flow performance. This structural design can not only improve the overall efficiency of the system but also extend the service life of the equipment.

[0025] In some alternative embodiments of the present embodiment, at least one fixing ring assembly 40 for fixing to the wall is provided on each side of the gradually changing elbow structure 20. That is, the fixing ring assemblies 40 on both sides of the gradually changing elbow structure 20 play a stabilizing role, which can firmly fix the elbow to the wall, preventing displacement or loosening caused by fluid impact or equipment vibration. These fixing ring assemblies 40 can effectively keep the elbow structure in a predetermined position, ensuring that the fluid can flow stably in the channel and maintaining the sealing performance of the entire system and the reliability of fluid transportation.

[0026] Please continue to refer to Figure 2, in some alternative embodiments of the present embodiment, the guide vane carrier 60 is a round rod shaft body. The bottom of the round rod shaft body is movably connected to the inner wall of the internal channel 50, and the swirl guide vane 70 is fixed to the shaft wall of the round rod shaft body. In this embodiment, by designing the guide vane carrier 60 as a round rod shaft body and fixing the swirl guide vane 70 to the shaft wall of the round rod shaft body, the flow direction of the water in the internal channel 50 intersects with the rotation direction of the swirl guide vane 70. This non-parallel intersection relationship can cause the water flow to form a rotational flow when passing through the area where the guide vane carrier 60 and the swirl guide vane 70 are located, thereby reducing the flow resistance and energy loss. The presence of the swirl guide vane 70 not only guides the flow direction of the fluid, reduces the turbulence caused by the right-angle elbow, but also can evenly distribute the flow velocity of the fluid and improve the flow stability of the entire system.

[0027] In some alternative embodiments of the present embodiment, the axial direction of the round rod shaft body is parallel to the axial direction of the water inlet elbow structure, and the height where the top of the round rod shaft body is located is lower than or equal to the height where the top of the water inlet elbow structure is located. In this embodiment, by keeping the axial direction of the round rod shaft body parallel to the axial direction of the water inlet elbow structure, it is ensured that the fluid flows smoothly along the designed path. The top height of the round rod shaft body is designed to be lower than or equal to the top height of the water inlet elbow structure, avoiding the problem of tip interference during fluid flow, thereby reducing fluid resistance and turbulence.

[0028] Please refer to Figure 4 , the swirl guide vane 70 includes at least two layers of annular guide vanes. The at least two layers of annular guide vanes are fixedly arranged in a surrounding manner on the shaft wall of the round rod shaft body, and the distance between adjacent two layers of annular guide vanes is positively correlated with the axial dimension of the round rod shaft body. That is, the longer the axial dimension of the round rod shaft body, the larger the distance between adjacent annular guide vanes. This arrangement enables the annular guide vanes to produce a layered rotational flow effect during fluid flow, forming multiple layered swirl paths. The design of the annular guide vanes optimizes the fluid flow path. By controlling the rotation speed and direction of the fluid, the fluid can pass through the internal channel more smoothly, reducing turbulence and energy loss.

[0029] Specifically, the distance between the annular guide vanes is smaller closer to the bottom of the round rod shaft body. That is, the design of the gradually changing swirl guide vane 70 can cause the fluid to form a stepped drainage guiding method when approaching the bottom of the guide vane carrier 70, and can gradually form a stronger rotational flow, thereby guiding the fluid into the gradually changing elbow structure in a stepped manner and optimizing the flow path. The gradually decreasing guide vane spacing helps to balance the fluid flow, reducing turbulence and resistance.

[0030] In addition, in order to further reduce the noise problem, an auxiliary flow channel 65 for water flow is formed between each layer of annular guide vanes and the outer wall of the guide vane carrier 60, allowing water to flow through these auxiliary flow channels 65 to slow down the flow velocity and turbulence effect of the fluid. When the water flow velocity reaches a relatively high speed, the auxiliary flow channel 65 allows a part of the water flow in the water flow to achieve radial flow to control the overall swirl degree of the water flow, so as to effectively reduce the noise generated based on swirl.

[0031] In a second aspect of the present utility model, a building drainage system is provided, including an inlet pipe body, an outlet pipe body, and a swirl pollution resistance, noise reduction, and diameter-changing elbow; the inlet pipe body is connected to the swirl pollution resistance, noise reduction, and diameter-changing elbow, and the outlet pipe body is connected to the swirl pollution resistance, noise reduction, and diameter-changing elbow.

[0032] In the swirl pollution resistance, noise reduction, and diameter-changing elbow and the building drainage system provided by the present utility model, an inlet elbow structure for connecting to the water inlet end and an outlet elbow structure for connecting to the water outlet end are included. The inner diameter of the inlet elbow structure is different from that of the outlet elbow structure; an internal channel for water flow is formed in the inlet elbow structure and the outlet elbow structure, and a guide vane carrier is arranged in the internal channel. A spiral swirl guide vane that can rotate relative to the internal channel is arranged on the guide vane carrier; wherein, when water enters from the water inlet end, the water flow enters the internal channel through the inlet elbow structure and flows towards the outlet elbow structure along the rotation direction of the swirl guide vane, so as to be discharged to the water outlet end. Based on the above technical solution, in the swirl pollution resistance, noise reduction, and diameter-changing elbow of the present utility model, by arranging the swirl guide vane in the internal channel, the water flow is effectively guided to flow along the spiral direction, pollutants or solid particles are blocked, and the direct impact of the water flow on the pipe wall is reduced, reducing the generation of noise and vibration, solving the problems of large water flow impact sound, high noise, obvious vibration, and easy damage of pipe fittings in the prior art, and significantly improving the service life of pipe fittings and the operation stability of the drainage system.

[0033] The specific embodiments of the utility model have been described in detail above, but it is only an example, and the present utility model is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modification or substitution to the utility model is also within the scope of the present utility model. Therefore, equivalent transformations, modifications, improvements, etc. made without departing from the spirit and principles of the present utility model should all be covered within the scope of the present utility model.

Claims

1. A swirl flow pollution prevention and noise reduction reducer elbow, used in building drainage system, characterized in that: The swirl pollution-proof and noise-reducing variable-diameter elbow comprises an inlet elbow structure connected to the water inlet end and an outlet elbow structure connected to the water outlet end, and the inner diameter of the inlet elbow structure is different from the inner diameter of the outlet elbow structure; The water inlet elbow structure and the water outlet elbow structure form an internal channel for water circulation, a guide vane carrier is arranged in the internal channel, and a spiral swirl guide vane that can rotate relative to the internal channel is arranged on the guide vane carrier; When water enters the water inlet end, the water flows into the internal channel through the water inlet elbow structure, and flows toward the water outlet elbow structure along the rotation direction of the swirl guide vane to be discharged to the water outlet end.

2. The swirl pollution-proof and noise-reducing reducer elbow according to claim 1 is characterized in that: The swirl pollution-proof and noise-reducing variable-diameter elbow also includes a gradual elbow structure; The gradient elbow structure is arranged between the water inlet elbow structure and the water outlet elbow structure, the inner diameter of the gradient elbow structure is larger than the inner diameter of the water inlet elbow structure, and the inner diameter of the gradient elbow structure is larger than the inner diameter of the water outlet elbow structure.

3. The swirl pollution-proof and noise-reducing reducer elbow according to claim 2 is characterized in that: The water inlet elbow structure is a hollow cylindrical structure, the water outlet elbow structure is a hollow cylindrical structure, and the gradual elbow structure is a hollow cylindrical structure. The hollow part of the water inlet elbow structure, the hollow part of the water outlet elbow structure and the hollow part of the gradual elbow structure constitute the internal channel.

4. The swirl pollution-proof and noise-reducing reducer elbow according to claim 2 is characterized in that: At least one fixing ring assembly for fixing to a wall is respectively arranged on both sides of the gradual elbow structure.

5. The swirl pollution-proof and noise-reducing reducer elbow according to claim 3 is characterized in that: The bottom of the guide vane carrier is movably connected to the hollow portion of the gradual elbow structure in the internal channel.

6. The swirl pollution-proof and noise-reducing reducer elbow according to claim 1 is characterized in that: The guide vane carrier is a round rod shaft body, the bottom of the round rod shaft body is movably connected to the inner wall of the internal channel, and the swirl guide vane is fixed to the shaft wall of the round rod shaft body.

7. The swirl pollution-proof and noise-reducing reducer elbow according to claim 6 is characterized in that: The axial direction of the round rod shaft is parallel to the axial direction of the water inlet elbow structure, and the height at which the top of the round rod shaft is located is lower than or equal to the height at which the top of the water inlet elbow structure is located.

8. The swirl pollution-proof and noise-reducing reducer elbow according to claim 6 is characterized in that: The swirl guide vanes include at least two layers of annular guide vanes, which are fixed to the shaft wall of the round rod shaft in a surrounding manner, and the spacing between two adjacent layers of the annular guide vanes is positively correlated with the axial size of the round rod shaft.

9. The swirl pollution-proof and noise-reducing reducer elbow according to claim 8, characterized in that: The closer the distance between the annular guide blades is to the bottom of the round rod shaft, the smaller the distance between the annular guide blades is.

10. A building drainage system, characterized in that: It comprises an inlet pipe body, an outlet pipe body and a swirl pollution-proof and noise-reducing reducing elbow as described in any one of claims 1 to 9; the inlet pipe body is connected to the swirl pollution-proof and noise-reducing reducing elbow, and the outlet pipe body is connected to the swirl pollution-proof and noise-reducing reducing elbow.

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