Damping valve structure of high-pressure pump
By designing a high-pressure pump shock absorber valve structure using screw fan blades and limit block components, the problem that traditional shock absorber valves cannot alleviate the impact of the auxiliary pipeline and the inability to adjust the threshold is solved, and effective shock absorption and stable adjustment of the high-pressure pump system is achieved.
Patent Information
- Application Number
- CN202421981558.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-15
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-08-15
AI Technical Summary
Traditional high-pressure pump shock absorber valves cannot effectively alleviate the impact of the auxiliary pipelines and cannot adjust the threshold independently, resulting in vibration and safety hazards that may be caused in high-pressure environments.
A high-pressure pump shock absorbing valve structure is designed, using components such as the outer shell, limit ring block, limit block, slider, spiral fan blade and spring. The impact force of the liquid is used to promote the rotation of the spiral fan blade to relieve the impact force of the liquid. The rotation of the spiral fan blade is adjusted through the coordination of the limit block and slider to achieve the shock absorption effect on the auxiliary pipeline.
It effectively slows down the impact of liquid on the auxiliary pipeline when the high-pressure valve is started, realizes shock absorption function, and maintains the stability of the device by adjusting the threshold, improving the safety of use and equipment life.
Smart Images
Figure CN222879864U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of high-pressure pumps, in particular to a high-pressure pump damping valve structure. Background Art
[0002] The high-pressure pump shock absorber valve is a key component used in high-pressure pump systems. Its main function is to reduce or eliminate the pressure fluctuations and vibrations caused by the operation of the pump and protect the pump body and related pipelines from damage. High-pressure pumps are very common in industrial applications, such as water treatment, chemical industry, oil extraction, food processing and other fields. They usually need to work under high-pressure environments to ensure efficient delivery of liquids.
[0003] The structure of the high-pressure pump shock absorber valve currently on the market usually includes the following basic components: valve body, which is the main structural part of the shock absorber valve and is usually made of high-strength metal materials to withstand high pressure and corrosion resistance; valve core, which is located inside the valve body and can be single or multiple. Depending on the design, the valve core can be spherical, plunger-shaped or other shapes; spring, which is used to apply pre-pressure to the valve core to ensure that the valve core remains closed under normal working conditions. When the fluid pressure exceeds the spring pre-pressure, the valve core will open to allow the fluid to pass; damper, which is used to absorb and reduce the vibration and impact generated when the fluid passes through the shock absorber valve. The damper can be a liquid damper, a gas damper or a mechanical damper, etc.; seal, which is used to ensure the seal between the valve core and the valve body to prevent fluid leakage. The seal is usually made of high-pressure and high-temperature resistant materials.
[0004] Currently, when the high-pressure pump is started, the auxiliary pipeline will be impacted due to the water hammer effect, affecting the service life and safety of the pipeline. In addition, the current high-pressure pump shock absorber valve on the market can only set an exact threshold. Once the output of the high-pressure valve in operation changes and deviates from the threshold, the shock absorber valve will vibrate and affect its use. Therefore, a high-pressure pump shock absorber valve is designed that can reduce the impact on the auxiliary pipeline and adjust the threshold. Utility Model Content
[0005] Based on this, the purpose of the utility model is to provide a high-pressure pump shock-absorbing valve structure to solve the technical problems that the traditional shock-absorbing valve cannot alleviate the impact on the attached pipeline and cannot autonomously adjust the threshold.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a high-pressure pump shock absorber valve structure, comprising an outer shell, one end of which is provided with a liquid inlet, the inner wall of the liquid inlet is connected to a limiting ring block, and the inner wall of the outer shell away from the liquid inlet is connected with a fixing block, a limiting block and a sliding cylinder are arranged inside the outer shell between the limiting ring block and the fixing block, and the fixing block is rotatably contacted with the closed end of the sliding cylinder at one end facing the liquid inlet, the open end of the sliding cylinder is penetrated by a sliding block inserted into the interior of the sliding cylinder, and the sliding block cooperates with the sliding cylinder, the sliding block is connected to the limiting block, the limiting ring block is movably contacted with the limiting block on one side of the outer shell, the outer wall of the sliding cylinder is connected with a plurality of spiral fan blades in sliding contact with the inner wall of the outer shell, the movable contact surfaces of the limiting block and the limiting ring block are both provided with a rubber layer, and a liquid outlet is provided at the end of the outer shell away from the liquid inlet.
[0007] By adopting the above technical solution, the liquid enters through the liquid inlet and impacts the limit block, causing the limit block to move backward, and the liquid flows into the interior of the outer shell along the gap between the limit block and the limit ring block. At this time, the liquid pushes the spiral fan blades to rotate. At this time, the impact force of the liquid will push the spiral fan blades to rotate, and the impact force of the liquid is alleviated. The liquid with a preliminary slowed flow rate enters the auxiliary pipeline through the liquid outlet, and the impact of the liquid on the auxiliary pipeline due to excessive impact force when the high-pressure valve is just started is alleviated. As the liquid continues to flow in, the spiral fan blades enter a relatively stable rotation state. Under the action of inertia, the spiral fan blades can absorb part of the fluctuations generated by the liquid, thereby realizing the shock absorption function of the device.
[0008] The utility model is further configured that a spring sleeved outside the sliding block is connected between the limit block and the sliding cylinder.
[0009] By adopting the above technical solution, the spring pushes the limit block to absorb and reduce the vibration and impact generated when the fluid passes through the shock absorbing valve.
[0010] The utility model is further configured such that the cross-sectional dimension of one end of the slider close to the limit block is larger than the cross-sectional dimension of the other end of the slider, the inner wall dimension of the open end of the slide cylinder is larger than the inner wall dimension of the inside of the slide cylinder, a slide groove for limiting the rotation of the limit block is provided between the limit block and the limit ring block, and a ceramic layer is provided on the outer surface of the slider and the inner wall of the slide cylinder.
[0011] By adopting the above technical scheme, when the output power of the high-pressure pump changes due to various situations, the output power increases, the impact force of the liquid increases accordingly, and the gap between the limit block and the limit ring block increases, driving the slider to retreat. Due to the structure of the slider and the slide tube with one end larger than the other, as the slider goes deeper, the friction between the slider and the slide tube increases, the rotation of the spiral fan blades slows down, absorbing part of the impact force of the liquid, reducing the vibration of the device, and moderately reducing the liquid pressure at the liquid outlet. When the output power decreases, the impact force of the liquid decreases accordingly, and the gap between the limit block and the limit ring block decreases, driving the slider forward. As the slider retreats, the friction between the slider and the slide tube decreases, the liquid impact force that the spiral fan blades can absorb is reduced, and driven by inertia, the spiral fan blades can briefly drive the flow of liquid, increase the liquid pressure at the liquid outlet, and maintain the stability of the device.
[0012] In summary, the utility model mainly has the following beneficial effects:
[0013] The utility model promotes the rotation of the spiral blades through the impact force of the liquid, thereby alleviating the impact force of the liquid. The liquid with the initially slowed flow rate enters the auxiliary pipeline through the liquid outlet, thereby alleviating the impact of the liquid on the auxiliary pipeline due to the excessive impact force when the high-pressure valve is just started. With the continuous influx of the liquid, the spiral blades enter a relatively stable rotation state. Under the action of inertia, the spiral blades can absorb part of the fluctuations generated by the liquid, thereby realizing the shock absorbing function of the device. When the output power of the high-pressure pump changes due to various situations, the gap between the limit block and the limit ring block is adjusted accordingly, and finally the rotation of the spiral blades is changed by the friction between the slider and the slide cylinder to maintain the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0015] Figure 2 It is a half-section schematic diagram of the overall structure of the utility model;
[0016] Figure 3 It is a cross-sectional view of the overall structure of the utility model;
[0017] Figure 4 It is a cross-sectional view of the overall structure of the utility model during the operation stage.
[0018] In the figure: 1, outer shell; 2, liquid inlet; 3, liquid outlet; 4, limit ring block; 5, limit block; 6, slider; 7, slide cylinder; 8, spiral fan blade; 9, spring; 10, fixed block. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.
[0020] The following describes an embodiment of the utility model based on its overall structure.
[0021] A high pressure pump damping valve structure, such as Figure 1-4 As shown, it includes an outer shell 1, one end of the outer shell 1 is provided with a liquid inlet 2, the inner wall of the liquid inlet 2 is connected to a limit ring block 4, the end of the inner wall of the outer shell 1 away from the liquid inlet 2 is connected to a fixed block 10, and the inner part of the outer shell 1 is provided with a limit block 5 and a slide cylinder 7 between the limit ring block 4 and the fixed block 10. The liquid enters through the liquid inlet 2 and impacts the limit block 5, so that the limit block 5 moves backward, and the liquid flows into the inner part of the outer shell 1 along the gap between the limit block 5 and the limit ring block 4. A spring 9 sleeved on the outside of the slider 6 is connected between the limit block 5 and the slide cylinder 7, and the spring 9 pushes the limit block 5 to absorb and reduce the vibration and impact generated when the fluid passes through the shock absorbing valve.
[0022] The end of the fixed block 10 facing the liquid inlet 2 is in rotational contact with the closed end of the slide cylinder 7, the open end of the slide cylinder 7 is penetrated by a slider 6 inserted into the inside of the slide cylinder 7, and the slider 6 cooperates with the slide cylinder 7, the slider 6 is connected to the limit block 5, and the limit ring block 4 is in active contact with the limit block 5 towards one side of the outer shell 1. The outer wall of the slide cylinder 7 is connected with a plurality of spiral blades 8 in sliding contact with the inner wall of the outer shell 1, and the movable contact surfaces of the limit block 5 and the limit ring block 4 are both provided with a rubber layer. The outer shell 1 is provided with a liquid outlet 3 at one end away from the liquid inlet 2. At this time, the liquid pushes the spiral blades 8 to rotate. At this time, the impact force of the liquid will push the spiral blades 8 to rotate, and the impact force of the liquid is alleviated. The liquid with a preliminarily slowed flow rate enters the auxiliary pipeline through the liquid outlet 3, which alleviates the impact of the liquid on the auxiliary pipeline due to excessive impact force when the high-pressure valve is just started, and as the liquid continues to flow in, the spiral blades 8 enter a relatively stable rotation state. Under the action of inertia, the spiral blades 8 can absorb part of the fluctuations generated by the liquid, thereby realizing the shock absorption function of the device.
[0023] The cross-sectional dimension of one end of the slider 6 close to the limit block 5 is larger than the cross-sectional dimension of the other end of the slider 6, the inner wall dimension of the open end of the slide cylinder 7 is larger than the inner wall dimension of the slide cylinder 7, a slide groove for limiting the rotation of the limit block 5 is provided between the limit block 5 and the limit ring block 4, and a ceramic layer is provided on the outer surface of the slider 6 and the inner wall of the slide cylinder 7. When the output power of the high-pressure pump changes due to various situations:
[0024] As the output power increases, the impact force of the liquid increases accordingly, and the gap between the limit block 5 and the limit ring block 4 increases, driving the slider 6 to retreat. Due to the structure in which one end of the slider 6 and the slide cylinder 7 is larger than the other end, as the slider 6 goes deeper, the friction between the slider 6 and the slide cylinder 7 increases, and the rotation of the spiral fan blade 8 slows down, absorbing part of the impact force of the liquid, reducing the vibration of the device, and moderately reducing the liquid pressure at the liquid outlet 3; when the output power decreases, the impact force of the liquid decreases accordingly, and the gap between the limit block 5 and the limit ring block 4 decreases, driving the slider 6 forward. As the slider 6 retreats, the friction between the slider 6 and the slide cylinder 7 decreases, and the impact force of the liquid that can be absorbed by the spiral fan blade 8 is reduced. Driven by inertia, the spiral fan blade 8 can briefly drive the flow of liquid, increase the liquid pressure at the liquid outlet 3, and maintain the stability of the device.
[0025] Working principle: liquid enters through the liquid inlet 2 and impacts the limit block 5, causing the limit block 5 to move backward, and the liquid flows into the interior of the outer shell 1 along the gap between the limit block 5 and the limit ring block 4, wherein the spring 9 pushes the limit block 5 to absorb and reduce the vibration and impact generated when the fluid passes through the shock absorbing valve. At this time, the liquid pushes the spiral fan blades 8 to rotate. At this time, the impact force of the liquid will push the spiral fan blades 8 to rotate, and the impact force of the liquid is alleviated. The liquid with the initial slowed flow rate enters the auxiliary pipeline through the liquid outlet 3, which alleviates the impact of the liquid on the auxiliary pipeline due to excessive impact force when the high-pressure valve is just started, and as the liquid continues to flow in, the spiral fan blades 8 enter a relatively stable rotation state. Under the action of inertia, the spiral fan blades 8 can absorb part of the fluctuations generated by the liquid, thereby realizing the shock absorbing function of the device. When the output power of the high-pressure pump is affected by various situations When the output power changes, the output power increases, the impact force of the liquid increases accordingly, the gap between the limit block 5 and the limit ring block 4 increases, driving the slider 6 to retreat. Due to the structure of the slider 6 and the slide cylinder 7 with one end larger than the other, as the slider 6 goes deeper, the friction between the slider 6 and the slide cylinder 7 increases, the rotation of the spiral blade 8 slows down, absorbing part of the impact force of the liquid, reducing the vibration of the device, and appropriately reducing the liquid pressure at the liquid outlet 3. When the output power decreases, the impact force of the liquid decreases accordingly, and the gap between the limit block 5 and the limit ring block 4 decreases, driving the slider 6 forward. As the slider 6 retreats, the friction between the slider 6 and the slide cylinder 7 decreases, the liquid impact force that the spiral blade 8 can absorb is reduced, and driven by inertia, the spiral blade 8 can briefly drive the flow of liquid, increase the liquid pressure at the liquid outlet 3, and maintain the stability of the device.
[0026] On the basis of the above structure, in this embodiment, although the embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model, and it is not a limitation of the utility model. The specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions and variations to the embodiment without creative contribution as needed without departing from the principle and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.
Claims
1. A high-pressure pump damping valve structure, comprising an outer shell (1), characterized in that: A liquid inlet (2) is provided at one end of the outer shell (1), and the inner wall of the liquid inlet (2) is connected to a limit ring block (4). The inner wall of the outer shell (1) is connected to a fixed block (10) at one end away from the liquid inlet (2). A limit block (5) and a slide cylinder (7) are provided inside the outer shell (1) between the limit ring block (4) and the fixed block (10). The end of the fixed block (10) facing the liquid inlet (2) is in rotational contact with the closed end of the slide cylinder (7). A slider (6) inserted into the inside of the slide cylinder (7) is passed through the open end of the slide cylinder (7), and the slider (6) cooperates with the slide cylinder (7). The slider (6) is connected to the limit block (5). The limit ring block (4) is in movably contact with the limit block (5) on the side facing the outer shell (1). The outer wall of the slide cylinder (7) is connected to a plurality of spiral blades (8) in sliding contact with the inner wall of the outer shell (1).
2. A high-pressure pump damping valve structure according to claim 1, characterized in that: The movable contact surfaces of the limit block (5) and the limit ring block (4) are both provided with a rubber layer.
3. A high-pressure pump damping valve structure according to claim 1, characterized in that: A liquid outlet (3) is provided at one end of the outer shell (1) away from the liquid inlet (2).
4. A high-pressure pump damping valve structure according to claim 1, characterized in that: A spring (9) sleeved outside the slide block (6) is connected between the limit block (5) and the slide cylinder (7).
5. A high-pressure pump damping valve structure according to claim 4, characterized in that: The cross-sectional dimension of one end of the slider (6) close to the limit block (5) is larger than the cross-sectional dimension of the other end of the slider (6), and the inner wall dimension of the open end of the slide cylinder (7) is larger than the inner wall dimension inside the slide cylinder (7).
6. A high-pressure pump damping valve structure according to claim 4, characterized in that: A sliding groove for limiting the rotation of the limit block (5) is provided between the limit block (5) and the limit ring block (4).
7. A high-pressure pump damping valve structure according to claim 4, characterized in that: The outer surface of the sliding block (6) and the inner wall of the sliding cylinder (7) are provided with a ceramic layer.