Adjustable water hammer eliminator

Abstract

The utility model relates to the technical field of pipeline engineering, and discloses an adjustable water hammer eliminator which comprises a pipe body, the left side of the pipe body is rotationally connected with a rotating rod, the outer portion of the rotating rod is fixedly connected with a limiting plate, the outer portion of the rotating rod is in threaded connection with an adjusting assembly used for adjusting flow, and the inner portion of the pipe body is fixedly connected with a fixing ring. The exterior of the fixing ring is fixedly connected with a plurality of guide rods, the exteriors of the guide rods are sleeved with first springs, the exteriors of the guide rods are slidably connected with a flow limiting plate, the left side of the flow limiting plate is fixedly connected with a limiting shell, and the front side and the rear side of the limiting shell are each provided with a guide hole. According to the utility model, through the linkage of the rotating rod, the connecting pipe, the flow limiting plate, the guide rod and the spring I, the flexible adjustment of the flow and the efficient buffering of the pressure of the water hammer are realized. The rotating rod drives the connecting pipe to move and drives the flow limiting plate to slide along the guide rod, the gap between the flow limiting plate and the fixing ring is adjusted, and flow is accurately controlled.

Description

Technical Field

[0001] This utility model relates to the field of pipeline engineering technology, and in particular to an adjustable water hammer eliminator. Background Technology

[0002] In fluid transport systems such as petrochemicals, water supply and drainage, and heating, water hammer (pressure shock waves caused by sudden changes in fluid velocity due to rapid valve opening and closing, pump start-up and shutdown, etc.) can cause severe impacts on pipelines and equipment, leading to safety problems such as vibration, seal failure, and even pipe rupture. Water hammer eliminators, as core protective devices, must effectively absorb the energy of pressure fluctuations.

[0003] However, as a core protective device, the water hammer eliminator cannot buffer the preload force according to the impact intensity. It may not buffer the severe water hammer of high-pressure, high-flow pipelines, while it may buffer the water hammer too much of low-pressure, low-flow pipelines, affecting normal transportation. Furthermore, the flow restrictor is prone to deflection under high-pressure impact due to the lack of a guide structure, leading to wear of the sealing surface and adjustment failure.

[0004] Therefore, an adjustable water hammer eliminator is proposed to address the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an adjustable water hammer eliminator, which aims to improve the problem that the buffer preload cannot change with the impact intensity in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An adjustable water hammer eliminator includes a pipe body, a rotating rod rotatably connected to the left side of the pipe body, a limiting plate fixedly connected to the outside of the rotating rod, an adjusting component for adjusting the flow rate threadedly connected to the outside of the rotating rod, a fixing ring fixedly connected inside the pipe body, multiple guide rods fixedly connected to the outside of the fixing ring, a spring sleeved on the outside of each of the multiple guide rods, a flow limiting plate slidably connected to the outside of the multiple guide rods, a limiting shell fixedly connected to the left side of the flow limiting plate, and guide holes opened on both the front and rear sides of the limiting shell;

[0008] As a further description of the above technical solution:

[0009] The adjustment assembly includes a connecting pipe and two fixing plates. The inner left side of the connecting pipe is threaded to the outside of the limiting plate. The two fixing plates are fixedly connected to the front and rear sides of the connecting pipe, respectively. The outer sides of the fixing plates are slidably connected to the inside of the guide hole.

[0010] As a further description of the above technical solution:

[0011] The bottom of the tube is provided with a base, and each of the four corners of the bottom of the base is fixedly connected with a receiving shell. Each of the multiple receiving shells has a cavity, and each cavity is provided with a spring. A sliding plate is slidably connected inside the receiving shell, and a bottom post is fixedly connected to the bottom of the sliding plate. A bottom plate is fixedly connected to the bottom of the multiple bottom posts.

[0012] As a further description of the above technical solution:

[0013] One end of spring one is fixedly connected to the left side of the guide rod, and the other end of spring one is fixedly connected to the outside of the flow limiting plate;

[0014] As a further description of the above technical solution:

[0015] The flow restrictor is externally slidably connected to the inside of the pipe body, and a water outlet pipe is provided on the rear side of the pipe body;

[0016] As a further description of the above technical solution:

[0017] One end of the sliding plate is fixedly connected to the outside of the sliding plate, and the other end of the sliding plate is fixedly connected to the top inner wall of the cavity;

[0018] As a further description of the above technical solution:

[0019] The top of the bottom column is slidably connected to the inside of the cavity, and the outside of the bottom plate has multiple mounting holes.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the flexible adjustment of flow rate and efficient buffering of water hammer pressure are achieved through the linkage of the rotating rod, connecting pipe, flow limiting plate, guide rod, and spring 1. The rotating rod drives the connecting pipe to move, causing the flow limiting plate to slide along the guide rod, adjusting the gap with the fixed ring, and precisely controlling the flow rate; when water hammer impacts, the flow limiting plate compresses spring 1, converting kinetic energy into elastic potential energy. Combined with the reverse resistance of the threaded connection, the pressure wave is effectively weakened, providing stable flow control and pressure protection for the pipeline system, adaptable to various working conditions.

[0022] 2. In this utility model, the shock absorption and stable support of the device are achieved through the coordinated action of the base, spring two, sliding plate, bottom column, and bottom plate. When the pipeline vibrates, spring two absorbs energy through compression and reset, the sliding plate slides in the cavity, and the bottom column and bottom plate cooperate to ensure the stability of the device, avoiding loosening of connections or structural damage caused by vibration, extending the service life of the equipment, enhancing the operational stability of the device in complex environments, and laying the foundation for the long-term reliable operation of the water hammer eliminator. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of an adjustable water hammer eliminator proposed in this utility model;

[0024] Figure 2 This is a schematic diagram of the limiting plate of an adjustable water hammer eliminator proposed in this utility model;

[0025] Figure 3 This is a schematic diagram of the fixing ring of an adjustable water hammer eliminator proposed in this utility model;

[0026] Figure 4 for Figure 3 Enlarged view of point A;

[0027] Figure 5 This is a schematic diagram of the base of an adjustable water hammer eliminator proposed in this utility model;

[0028] Figure 6 for Figure 5 Enlarged view of point B.

[0029] Legend:

[0030] 1. Pipe body; 2. Rotating rod; 3. Limiting plate; 4. Connecting pipe; 5. Flow limiting plate; 6. Fixing ring; 7. Guide rod; 8. Guide hole; 9. Spring 1; 10. Base; 11. Receiving shell; 12. Cavity; 13. Spring 2; 14. Sliding plate; 15. Bottom column; 16. Base plate; 17. Fixing plate; 18. Limiting shell. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figures 1 to 4This utility model provides an embodiment of an adjustable water hammer eliminator, comprising a pipe body 1 as the main body of the device, forming a water flow channel, carrying internal components, and ensuring stable fluid flow. This is the basic structure of the water hammer eliminator. A rotating rod 2 is rotatably connected to the left side of the pipe body 1 for manual flow adjustment. Rotation drives the connecting pipe 4 to move, thereby adjusting the position of the flow restrictor 5. This is the operating component for flow control. A limit plate 3 is fixedly connected to the external part of the rotating rod 2, preventing the connecting pipe 4 from rotating with the rotating rod 2 and ensuring that the connecting pipe 4 only slides axially, thus guaranteeing the accuracy of flow adjustment. The external thread of the rotating rod 2 is connected to an adjustment component for regulating the flow rate. The adjustment component includes a connecting pipe 4 threadedly connected to the rotating rod 2, which converts the rotational motion of the rotating rod 2 into axial movement, driving the fixed plate 17 and the flow limiting plate 5 to realize the transmission of flow rate regulation. The two fixed plates 17 connect the connecting pipe 4 and the flow limiting plate 5, and transmit the motion through the guide hole 8 to ensure that the flow limiting plate 5 slides stably along the guide rod 7. It is a key component for motion transmission. The internal left side of the connecting pipe 4 is threadedly connected to the outside of the limiting plate 3, and the outside of the two fixed plates 17 is fixedly connected to the front and rear sides of the outside of the connecting pipe 4, respectively.

[0033] A fixing ring 6 is fixed inside the pipe body 1 and works in conjunction with the flow limiting plate 5. By changing the gap, the cross-sectional area of ​​the water flow is controlled to achieve precise flow regulation. This is the core structure for flow control. Multiple guide rods 7 are fixed to the outside of the fixing ring 6 to provide sliding guidance for the flow limiting plate 5. This ensures that the flow limiting plate 5 maintains linear movement during adjustment and water hammer impact, avoiding skew that could affect sealing and flow control. Springs 9 are fitted on the outside of each guide rod 7, connecting the guide rod 7 to the flow limiting plate 5. These springs provide a restoring force during flow regulation and absorb kinetic energy during water hammer impact, converting it into elastic potential energy to buffer pressure fluctuations and eliminate water hammer.

[0034] Multiple guide rods 7 are externally slidably connected to flow limiting plates 5, which are slidably connected to the guide rods 7 and the pipe body 1. The flow rate is adjusted by the gap with the fixed ring 6. When water hammer impacts, spring 9 is compressed to absorb pressure energy. It is the actuator for flow regulation and water hammer buffering. One end of spring 9 is fixedly connected to the left side of the guide rod 7, and the other end of spring 9 is fixedly connected to the outside of the flow limiting plate 5. The outside of the flow limiting plate 5 is slidably connected to the inside of the pipe body 1. The left side of the flow limiting plate 5 is fixedly connected to the limiting shell 18, which is fixed to the flow limiting plate 5. A guide hole 8 is opened to accommodate the fixed plate 17, ensuring a stable connection between the regulating component and the flow limiting plate 5, transmitting motion, and ensuring adjustment accuracy. Guide holes 8 are opened on both the front and rear sides of the limiting shell 18. The outside of the fixed plate 17 is slidably connected to the inside of the guide hole 8. A water outlet pipe is provided on the rear side of the pipe body 1.

[0035] Reference Figure 1 , Figure 5 and Figure 6The bottom of the pipe body 1 is provided with a base 10 to support the pipe body 1. The bottom is connected to a shock-absorbing component, providing a stable installation foundation for the device, reducing the impact of pipe vibration on the device, and improving overall stability. Each of the four corners of the bottom of the base 10 is fixedly connected to a receiving shell 11, which has an internal cavity 12 to house a second spring 13, a sliding plate 14, and a bottom column 15, forming a shock-absorbing system to absorb external vibration energy. Each of the multiple receiving shells 11 has an internal cavity 12, with a second spring 13 located inside the cavity 12, connecting the sliding plate 14 to the top of the cavity 12. Through compression and reset, it absorbs pipe vibration, protecting the device from vibration damage and enhancing operational stability. A sliding plate 14 is slidably connected inside the receiving shell 11, sliding within the receiving shell 11 to transmit the vibration energy of the second spring 13. The elastic force of 13 evenly disperses vibration energy, ensuring the stability of the device in a vibration environment and preventing components from loosening. One end of the sliding plate 14 is fixedly connected to the outside of the sliding plate 14, and the other end of the sliding plate 14 is fixedly connected to the top inner wall of the cavity 12. The bottom of the sliding plate 14 is fixedly connected to the bottom column 15, which connects the sliding plate 14 and the bottom plate 16, and transmits the shock absorption force to the ground or support, ensuring the stability of the device and avoiding displacement or damage caused by vibration. The bottom of multiple bottom columns 15 is fixedly connected to the bottom of the bottom plate 16, which is fixed to the bottom column 15 and connected to the external structure through the mounting holes, providing fixed support for the device, ensuring the stability of the overall structure during operation, and facilitating installation and maintenance. The top of the bottom column 15 is slidably connected to the inside of the cavity 12, and multiple mounting holes are opened on the outside of the bottom plate 16.

[0036] Working Principle: First, the adjustable water hammer eliminator is fixed to the pipeline system through the mounting holes on the base plate 16, ensuring a tight connection between the pipe body 1 and the pipeline. When it is necessary to adjust the pipeline flow, the operator rotates the rotating rod 2 on the left side of the pipe body 1. The limiting plate 3 outside the rotating rod 2 rotates synchronously with the rotating rod 2, and the connecting pipe 4 moves axially along the rotating rod 2 through a threaded connection (the connecting pipe 4 moves to the right when rotated clockwise and to the left when rotated counterclockwise). The fixing plate 17 outside the connecting pipe 4 is slidably connected to the guide hole 8 of the flow limiting plate 5, causing the flow limiting plate 5 to slide along the guide rod 7. The spring 9 outside the guide rod 7 is compressed or stretched, adjusting the gap between the flow limiting plate 5 and the fixing ring 6, changing the cross-sectional area of ​​the water flow through the pipe body 1, and realizing flow regulation.

[0037] When water hammer occurs in the pipeline (a sudden increase in pressure due to a sudden change in flow velocity), the high-pressure water flow impacts the flow-limiting plate 5. The flow-limiting plate 5 slides to the left along the guide rod 7, compressing the spring 9 and converting the kinetic energy of the water hammer into the elastic potential energy of the spring 9, thus buffering the pressure impact. The threaded connection between the connecting pipe 4 and the rotating rod 2 provides reverse resistance, further dissipating energy. The fixing ring 6 and the guide rod 7 ensure the stability of the sliding direction of the flow-limiting plate 5, preventing seal failure. After the water hammer pressure disappears, the spring 9 pushes the flow-limiting plate 5 back to its original position, restoring the initial flow regulation state.

[0038] When the pipeline vibrates, the damping structure of the base 10 absorbs the vibration energy by compressing and resetting the spring 13, sliding the sliding plate 14 along the cavity 12, and cooperating with the base plate 16 to ensure the stability of the device, prevent vibration from causing loose connections or structural damage, and extend the service life of the equipment.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adjustable water hammer eliminator, comprising a pipe body (1), characterized in that: A rotating rod (2) is rotatably connected to the left side of the pipe body (1). A limiting plate (3) is fixedly connected to the outside of the rotating rod (2). An adjusting component for adjusting the flow rate is threadedly connected to the outside of the rotating rod (2). A fixing ring (6) is fixedly connected inside the pipe body (1). Multiple guide rods (7) are fixedly connected to the outside of the fixing ring (6). A spring (9) is sleeved on the outside of each of the multiple guide rods (7). A flow limiting plate (5) is slidably connected to the outside of the multiple guide rods (7). A limiting shell (18) is fixedly connected to the left side of the flow limiting plate (5). Guide holes (8) are opened on both the front and rear sides of the limiting shell (18).

2. The adjustable water hammer eliminator according to claim 1, characterized in that: The adjustment assembly includes a connecting pipe (4) and two fixing plates (17). The inner left side of the connecting pipe (4) is threaded to the outside of the limiting plate (3). The two fixing plates (17) are respectively fixedly connected to the front and rear sides of the outside of the connecting pipe (4). The outside of the fixing plates (17) is slidably connected to the inside of the guide hole (8).

3. The adjustable water hammer eliminator according to claim 1, characterized in that: The bottom of the tube (1) is provided with a base (10), and each of the four corners of the bottom of the base (10) is fixedly connected with a receiving shell (11). Each of the multiple receiving shells (11) has a cavity (12) inside. A spring (13) is provided inside the cavity (12). A sliding plate (14) is slidably connected inside the receiving shell (11). A bottom post (15) is fixedly connected to the bottom of the sliding plate (14). A bottom plate (16) is fixedly connected to the bottom of the multiple bottom posts (15).

4. An adjustable water hammer eliminator according to claim 1, characterized in that: One end of the spring (9) is fixedly connected to the left side of the guide rod (7), and the other end of the spring (9) is fixedly connected to the outside of the flow limiting plate (5).

5. An adjustable water hammer eliminator according to claim 1, characterized in that: The flow limiting plate (5) is slidably connected to the inside of the pipe body (1), and a water outlet pipe is provided on the rear side of the pipe body (1).

6. An adjustable water hammer eliminator according to claim 3, characterized in that: One end of the sliding plate (14) is fixedly connected to the outside of the sliding plate (14), and the other end of the sliding plate (14) is fixedly connected to the top inner wall of the cavity (12).

7. An adjustable water hammer eliminator according to claim 3, characterized in that: The top of the bottom column (15) is slidably connected to the inside of the cavity (12), and the outside of the bottom plate (16) is provided with multiple mounting holes.

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