Pipeline valve capable of reducing noise
By designing multi-stage flow dividers and noise reduction components, the problem of difficult noise control of valves under high flow rate or high pressure conditions was solved, achieving smooth fluid flow and significant noise reduction.
Patent Information
- Application Number
- CN202520838743.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-04-29
AI Technical Summary
Existing valves are difficult to effectively control noise under high flow rate or high pressure conditions, especially the noise caused by vibration and turbulence when the fluid passes through, and the noise generated by internal mechanical movement is difficult to effectively isolate.
The design incorporates multi-stage flow dividers and noise reduction components, including multi-stage flow dividers, soundproof covers, rubber sound insulation pads, and sound-absorbing cotton pads. By optimizing the flow channel design and material combination, turbulence and mechanical noise are reduced, and noise transmission is isolated.
It significantly reduces valve noise, ensures smoother and quieter fluid flow, and improves sealing performance and noise reduction.
Smart Images
Figure CN223965003U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fluid transmission equipment technology, and in particular to a pipeline valve that can reduce noise. Background Technology
[0002] In modern industrial production and daily life, pipeline systems are widely used for the transmission of various liquid and gas media. As a crucial control element within these systems, valves are ubiquitous. However, during the opening, closing, or flow regulation processes, valves may generate varying degrees of noise. This noise not only affects the quality of the working environment but may also adversely impact the health of operators. With the expansion of application areas and technological advancements, the requirements for valve performance are increasingly stringent, especially in noise control.
[0003] While existing valves perform well in controlling fluid flow, they still have significant shortcomings in noise control. Firstly, traditional valves passively reduce noise by simply increasing the thickness of the seals or wrapping them with sound-insulating layers, which is insufficient to address the noise challenges under complex operating conditions. Especially under high flow rates or high pressures, the vibrations and turbulence generated as fluid passes through the valve produce significant noise, and existing sound insulation measures cannot effectively isolate these noise sources. Furthermore, the mechanical movements inside the valve also generate additional noise, but due to the lack of effective sound insulation and absorption designs, these problems are difficult to fundamentally solve.
[0004] Therefore, it is necessary to design a pipeline valve that can reduce noise in order to solve the above-mentioned technical problems. Utility Model Content
[0005] To overcome the shortcomings of traditional valves that typically rely solely on a single mechanical seal or simple sound insulation material to reduce noise, which is insufficient to address noise challenges under complex operating conditions, this invention provides a pipeline valve that can reduce noise.
[0006] The technical solution of this utility model is: a pipeline valve that can reduce noise, including a valve body, a valve cover, a handwheel, a valve stem, a valve plate, a retaining ring, and a multi-stage diversion plate. The valve cover is fixedly connected to the top of the valve body, the handwheel is rotatably connected to the top of the valve cover, the valve stem is fixedly connected to the bottom of the handwheel, the valve stem is threadedly connected to the valve plate, the valve plate is slidably connected to the upper inner side of the valve body, and retaining rings are fixedly connected to the inner walls of the pipeline on both sides of the valve plate inside the valve body. Multi-stage diversion plates are provided between the retaining rings and the openings on both sides of the pipeline of the valve body.
[0007] Furthermore, the multi-stage flow divider includes a first-stage plate, a second-stage plate, and a final-stage plate. The multi-stage flow divider is a hollow cylinder with multiple flow dividers inside. Along the direction of fluid flow, the first-stage plate, the second-stage plate, and the final-stage plate are arranged in sequence. Each flow divider has holes of different sizes, spacings, and staggered arrangement. The total area of the holes on each plate is 70% to 80% of that on the previous plate, and the spacing between the plates is 0.5 to 1 times the pipe diameter. The multi-stage flow divider is divided into two groups: an inlet end and an outlet end, both of which are installed in the pipes on both sides of the valve body.
[0008] Furthermore, it also includes noise reduction components. Noise reduction components are provided on both the outer and inner layers of the valve body's pipe. The noise reduction components include a soundproof cover, a first rubber soundproof pad, a first sound-absorbing cotton pad, and a second rubber soundproof pad. The outer layer of the valve body's pipe is provided with a soundproof cover. The top of the valve cover is provided with a first rubber soundproof pad at the position where it fits against the valve stem. The bottom of the valve cover and the connection between the valve body are provided with a first sound-absorbing cotton pad. The inner layer of the upper pipe of the valve body is provided with a second rubber soundproof pad, and all of the above materials are sound-absorbing materials.
[0009] Furthermore, it also includes a third rubber sound insulation pad, which is installed inside the valve body at the bottom corresponding to the position where the valve plate falls.
[0010] Furthermore, the outer surface of the soundproof enclosure is marked with arrow symbols indicating the direction of water flow.
[0011] Furthermore, it also includes a second sound-absorbing cotton pad, with the second sound-absorbing cotton pad located around the opening of the multi-stage diversion plate at the pipe connection.
[0012] The beneficial effects are as follows: 1. By designing a multi-stage flow divider and its hole layout, this utility model achieves the effect of reducing fluid turbulence and impact noise, ensuring a more stable water flow, and reducing noise caused by sudden changes in flow velocity and structural changes.
[0013] 2. This utility model achieves a significant noise reduction effect by setting a soundproof cover on the outside of the valve body and configuring rubber soundproof pads and first sound-absorbing cotton pads in key parts. It effectively isolates the transmission of noise inside and outside the pipeline and absorbs the noise generated by internal mechanical movement.
[0014] 3. This utility model improves sealing performance by setting a third rubber sound insulation pad under the valve plate, which increases buffering and noise reduction. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model.
[0016] Figure 2 This is a partial cross-sectional view of the valve body, valve cover, handwheel, and other components of this utility model.
[0017] Figure 3This is a partial cross-sectional view of the valve stem, valve plate, and soundproof cover of this utility model.
[0018] Figure 4 This is a partial cross-sectional structural diagram of the primary plate, secondary plate, and final plate of this utility model.
[0019] Figure 5 for Figure 4 A schematic diagram of the front planar structure.
[0020] The component names and serial numbers in the diagram are as follows: 1_Valve body, 2_Valve cover, 3_Handwheel, 4_Valve stem, 5_Valve plate, 6_Soundproof cover, 7_First rubber soundproof pad, 8_First sound-absorbing cotton pad, 9_Second rubber soundproof pad, 10_Blocking ring, 11_Multi-stage diverter plate, 12_First stage plate, 13_Second stage plate, 14_Final stage plate, 15_Third rubber soundproof pad, 16_Second sound-absorbing cotton pad. Detailed Implementation
[0021] The preferred technical solution of this utility model will be described in detail below with reference to the accompanying drawings.
[0022] Example: A pipe valve that can reduce noise, such as Figures 1-5 As shown, the valve includes a valve body 1, a valve cover 2, a handwheel 3, a valve stem 4, a valve plate 5, a retaining ring 10, and a multi-stage flow divider 11. The valve cover 2 is bolted to the top of the valve body 1, and the handwheel 3 is rotatably connected to the top of the valve cover 2. The handwheel 3 is bolted to the valve stem 4, which has an external thread. The valve plate 5 has an internal thread machined in its center, and the two are connected by a threaded fit. The valve plate 5 is designed as a structure of multiple coaxially arranged cylinders, with the central cylinder having a smaller diameter, forming an annular gap between it and the larger diameter portions on both sides. The valve plate 5 slides up and down inside the valve body 1. The retaining ring 10 is welded to the inner wall of the pipe located on both sides of the valve plate 5 inside the valve body 1. 0. A multi-stage flow divider 11 is provided between the retaining ring 10 and the openings on both sides of the pipe of the valve body 1. The multi-stage flow divider 11 includes a first-stage plate 12, a second-stage plate 13 and a final-stage plate 14. The multi-stage flow divider 11 is a hollow cylinder with multiple flow dividers inside. Along the direction of fluid flow, the first-stage plate 12, the second-stage plate 13 and the final-stage plate 14 are arranged in sequence. Each flow divider has holes of different sizes, different spacings and staggered arrangement. The total area of the holes on each plate is 70% to 80% of that of the previous plate, and the spacing between the plates is 0.5 to 1 times the pipe diameter. The multi-stage flow divider 11 is divided into two groups, the inlet end and the outlet end, which are installed in the pipes on both sides of the valve body 1.
[0023] Before installing this valve, confirm that it is suitable for unidirectional pipelines and ensure that the water flow direction is consistent with the arrow marked on the valve. First, select a horizontal position for installation to ensure that the functions of each component are fully utilized. Then, slide the multi-stage diverter plate 11 into the openings on both sides of the pipeline of the valve body 1, and ensure that the inside of the pipeline is in contact with the retaining ring 10. After placing the second sound-absorbing cotton pad 16 between the two ends of the valve and the pipeline, connect them to ensure that all interfaces are tight and leak-free. Pay special attention to checking the condition of the seals to ensure the best noise reduction effect.
[0024] like Figures 1-5 As shown, it also includes noise reduction components. Noise reduction components are provided on both the outer and inner layers of the pipe of valve body 1. The noise reduction components include a sound insulation cover 6, a first rubber sound insulation pad 7, a first sound-absorbing cotton pad 8, a second rubber sound insulation pad 9, a third rubber sound insulation pad 15, and a second sound-absorbing cotton pad 16. The outer layer of the pipe of valve body 1 is provided with a sound insulation cover 6, and the outer surface of the sound insulation cover 6 is marked with an arrow symbol indicating the direction of water flow. The top of the valve cover 2 is provided with a first rubber sound insulation pad 7 at the position where it fits against the valve stem 4. The bottom of the valve cover 2 and the connection between the valve body 1 and the valve body 1 are provided with a first sound-absorbing cotton pad 8. The inner layer of the upper pipe of valve body 1 is provided with a second rubber sound insulation pad 9, and the above materials are sound-absorbing materials. Inside the valve body 1, a third rubber sound insulation pad 15 is installed at the bottom corresponding to the position where the valve plate 5 falls, to ensure that when the valve plate 5 is completely closed, the third rubber sound insulation pad 15 can play the role of buffering noise reduction and filling the gap under the valve plate 5. A second sound-absorbing cotton pad 16 is provided around the opening of the multi-stage diversion plate 11 near the pipe connection.
[0025] When water flows into the valve in the correct direction, it first encounters an externally installed soundproof cover 6, which helps reduce outward noise. Subsequently, the water flows through a multi-stage system consisting of a primary plate 12, a secondary plate 13, and a final plate 14. The perforated design on these plates gradually disperses and smoothly guides the fluid, thereby reducing turbulence and noise. The perforated area of each diversion plate is approximately 70% to 80% of that of the previous plate, effectively controlling the flow velocity and ensuring a smooth transition. The valve plate 5 adopts a coaxially arranged cylindrical structure design, with an annular gap between the smaller diameter section in the middle and the larger diameter sections on both sides. This design helps the fluid pass through more smoothly, reducing turbulence and noise. The noise caused by sudden changes is reduced. At the same time, the first rubber sound insulation pad 7, the first sound-absorbing cotton pad 8, and the second rubber sound insulation pad 9 work together to reduce the noise generated by internal mechanical movement and water flow. When the valve is closed, the third rubber sound insulation pad 15 located below the valve plate 5 fills the gap, which not only makes up for the unevenness of the sealing surface caused by processing or installation errors and improves the leakage level when the valve is closed, but also buffers the valve plate 5 to further reduce noise. Finally, the entire system achieves a significant noise reduction effect through physical isolation, the application of sound-absorbing materials, and optimized flow channel design, making the fluid flow in the pipeline more stable and quiet.
[0026] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present application. Therefore, the content of this specification should not be construed as a limitation of the present application.
Claims
1. A noise-reducing pipeline valve, comprising a valve body (1), a valve cover (2), a handwheel (3), a valve stem (4), a valve plate (5), and a retaining ring (10), wherein the valve cover (2) is fixedly connected to the top of the valve body (1), the handwheel (3) is rotatably connected to the top of the valve cover (2), the valve stem (4) is fixedly connected to the bottom of the handwheel (3), the valve stem (4) is threadedly connected to the valve plate (5), the valve plate (5) is slidably connected to the upper inner side of the valve body (1), and retaining rings (10) are fixedly connected to the inner wall of the pipeline located on both sides of the valve plate (5) inside the valve body (1), characterized in that, It also includes a multi-stage flow divider (11), and a multi-stage flow divider (11) is provided between the retaining ring (10) and the openings on both sides of the pipeline of the valve body (1).
2. A noise-reducing pipeline valve according to claim 1, characterized in that, The multi-stage flow divider (11) includes a first-stage plate (12), a second-stage plate (13) and a final-stage plate (14). The multi-stage flow divider (11) is a hollow cylinder with multiple flow dividers inside. Along the direction of fluid flow, the first-stage plate (12), the second-stage plate (13) and the final-stage plate (14) are arranged in sequence. Each flow divider has holes of different sizes, different spacings and staggered arrangement. The total area of the holes in each plate is 70% to 80% of the area of the previous plate, and the spacing between the plates is 0.5 to 1 times the diameter of the pipe. The multi-stage flow divider (11) is divided into two groups: the inlet end and the outlet end, both of which are installed in the pipes on both sides of the valve body (1).
3. A noise-reducing pipeline valve according to claim 2, characterized in that, It also includes noise reduction components. The outer and inner layers of the pipe of the valve body (1) are equipped with noise reduction components. The noise reduction components include a soundproof cover (6), a first rubber soundproof pad (7), a first sound-absorbing cotton pad (8), and a second rubber soundproof pad (9). The outer layer of the pipe of the valve body (1) is equipped with a soundproof cover (6). The top of the valve cover (2) is equipped with a first rubber soundproof pad (7) at the position where it fits against the valve stem (4). The bottom of the valve cover (2) and the connection between the valve body (1) are equipped with a first sound-absorbing cotton pad (8). The inner layer of the upper pipe of the valve body (1) is equipped with a second rubber soundproof pad (9). All of the above materials are sound-absorbing materials.
4. A noise-reducing pipeline valve according to claim 3, characterized in that, It also includes a third rubber sound insulation pad (15), which is installed inside the valve body (1) at the bottom corresponding to the falling position of the valve plate (5).
5. A noise-reducing pipeline valve according to claim 4, characterized in that, The outer surface of the soundproof cover (6) is marked with arrow symbols indicating the direction of water flow.
6. A noise-reducing pipeline valve according to claim 5, characterized in that, It also includes a second sound-absorbing cotton pad (16), and the second sound-absorbing cotton pad (16) is provided around the opening of the multi-stage diversion plate (11) at the connection of the pipe.