Cascade multistage depressurization regulating valve

Abstract

The utility model relates to the technical field of pressure regulating valves, and discloses a cascade type multi-stage depressurization regulating valve, which comprises a valve body, a first pressure regulating valve, a second pressure regulating valve, a third pressure regulating valve and a fourth pressure regulating valve, the valve seat is arranged on the valve body, an upper handle is arranged at the top of the valve seat, an upper valve rod is installed on the upper handle, a valve rod spring is arranged outside the upper valve rod, a pressure reduction upper valve seat is arranged at the bottom of the upper valve rod, a V-shaped valve port is formed in the bottom of the pressure reduction upper valve seat, a lower handle is arranged at the bottom of the valve body, and a lower valve rod is arranged on the lower handle. And a V-shaped pressure reducing valve seat is arranged at the end part of the lower valve rod. And the arranged multi-stage pressure reduction structure can effectively achieve step-by-step pressure adjustment of the fluid, and the pressure reduction effect and the flowing stability of the fluid are remarkably improved. And through the design of the V-shaped valve port and the step-shaped pressure reduction upper valve seat, fluid impact is reduced, and the stability and reliability of the valve are enhanced. In addition, the structure is compact, the installation space requirement is reduced, the maintenance process is simplified, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of pressure regulating valve technology, specifically a cascade multi-stage pressure reducing regulating valve. Background Technology

[0002] In many industrial applications, pressure regulating valves are key components for controlling fluid pressure to the required value. Traditional single-stage pressure-reducing regulating valves are generally suitable for applications with small pressure changes. However, in applications requiring larger pressure drops, single-stage pressure-reducing regulating valves often fail to achieve smooth and effective pressure regulation and are prone to generating significant fluid shocks, thus affecting the stability and reliability of the system. To solve this problem, multi-stage pressure-reducing regulating technology has become an ideal solution.

[0003] Currently, although multi-stage pressure reducing control valves are gradually being used in applications requiring wide-range pressure regulation, the design of traditional valve bodies often has certain limitations, particularly in their structure, which makes it difficult to achieve multi-stage pressure reduction adjustments. Specifically, traditional multi-stage pressure reducing control valves often face the following problems:

[0004] The design of multi-stage pressure-reducing regulating valves requires multiple segmentations of the valve body's internal structure and the use of different regulating mechanisms to progressively adjust pressure. However, existing valve body structures are typically designed as single fluid channels, making it difficult to effectively regulate pressure through multiple stages. This results in the valve failing to achieve the expected pressure reduction effect in practical applications, impacting its performance and adaptability.

[0005] In applications requiring significant pressure reduction, single-stage pressure reduction can lead to unstable fluid flow and generate substantial shock pressures. Traditional valve body designs often exhibit poor stability under large pressure drops, potentially causing equipment vibration, increased noise, or even damage. Therefore, designing a more efficient multi-stage pressure reduction system is essential.

[0006] Existing multi-stage pressure reducing control valves are often bulky, requiring significant installation space, and their complexity increases maintenance difficulty. In some compact operating conditions, this design can affect the ease of installation and maintenance, thereby impacting production efficiency.

[0007] Therefore, based on the above-mentioned technical problems, it is necessary for those skilled in the art to develop a cascade multi-stage pressure reducing regulating valve. Utility Model Content

[0008] The purpose of this invention is to provide a cascade multi-stage pressure reducing regulating valve to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] The cascade multi-stage pressure reducing regulating valve technology solution includes:

[0011] The valve body has an internal channel for fluid transport;

[0012] A valve seat is disposed on the valve body. An upper handle is disposed on the top of the valve seat, an upper valve stem is mounted on the upper handle, a valve stem spring is disposed on the outside of the upper valve stem, a pressure-reducing upper valve seat is disposed at the bottom of the upper valve stem, a V-shaped valve port is disposed at the bottom of the pressure-reducing upper valve seat, a lower handle is disposed at the bottom of the valve body, a lower valve stem is disposed on the lower handle, and a V-shaped pressure-reducing valve seat is disposed at the end of the lower valve stem. The V-shaped pressure-reducing valve seat and the pressure-reducing upper valve seat are configured as a multi-stage pressure-reducing structure to realize step-by-step pressure regulation of the fluid.

[0013] A pressure gauge, connected to the valve body, is used to monitor fluid pressure.

[0014] As a preferred technical solution, the pressure-reducing upper valve seat is configured with a stepped structure, which cooperates with the V-shaped valve port to form at least two pressure-reducing levels in the fluid channel to reduce fluid shock.

[0015] As a preferred technical solution, the V-shaped valve port is located on the bottom surface of the pressure-reducing upper valve seat to control the fluid flow rate and prevent turbulence.

[0016] As a preferred technical solution, the lower valve stem is operated by the lower handle to adjust the opening between the V-shaped pressure reducing valve seat and the V-shaped valve port, thereby achieving precise pressure control.

[0017] As a preferred technical solution, the pressure gauge provides real-time pressure data feedback, facilitating user monitoring and adjustment.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This invention relates to a cascade multi-stage pressure-reducing regulating valve. The multi-stage pressure-reducing structure effectively achieves step-by-step pressure regulation of the fluid, significantly improving the pressure reduction effect and the smoothness of fluid flow. The V-shaped valve port and stepped pressure-reducing upper valve seat design not only reduce fluid impact but also enhance the valve's stability and reliability. Furthermore, this invention has a compact structure, reducing installation space requirements, simplifying maintenance procedures, and improving production efficiency. Attached Figure Description

[0020] Figure 1 A schematic diagram of the overall structure of a cascade multi-stage pressure reducing regulating valve;

[0021] Figure 2 This is a three-dimensional structural diagram of a cascade multi-stage pressure reducing regulating valve;

[0022] Figure 3This is a schematic diagram of the internal cross-sectional structure of a cascade multi-stage pressure reducing regulating valve.

[0023] In the attached diagram, the following are the reference numerals: 1. Valve body; 11. Passage; 2. Valve seat; 21. Upper handle; 22. Upper valve stem; 23. Valve stem spring; 24. Pressure reducing upper valve seat; 25. V-type valve port; 26. Lower handle; 27. V-type pressure reducing valve seat; 3. Pressure gauge. Detailed Implementation

[0024] The features and exemplary embodiments of various aspects of this utility model will now be described in detail. To make the objectives, technical solutions, and advantages of this utility model clearer, the following description, in conjunction with the accompanying drawings and specific embodiments, will provide a further detailed description. For those skilled in the art, this utility model can be implemented without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of this utility model by illustrating examples.

[0025] like Figure 1 , Figure 2 and Figure 3 As shown, this utility model provides a cascade multi-stage pressure-reducing regulating valve technical solution: It includes a valve body 1 with an internal channel 11 for fluid transport. A valve seat 2 is located at the upper end of the valve body 1, and an upper handle 21 is mounted on the valve seat 2. An upper valve stem 22 is mounted on the upper handle 21. A valve stem spring 23 is located outside the upper valve stem 22, and a pressure-reducing upper valve seat 24 is located at the bottom of the upper valve stem 22. A V-shaped valve port 25 is located at the bottom of the pressure-reducing upper valve seat 24. A lower handle 26 is located at the lower end of the valve body 1, and a lower valve stem 27 is mounted on the lower handle 26. A V-shaped pressure-reducing valve seat 27 is located at the end of the lower valve stem 27. The V-shaped pressure-reducing valve seat 27 and the pressure-reducing upper valve seat 24 are configured as a multi-stage pressure-reducing structure to achieve step-by-step pressure regulation of the fluid.

[0026] like Figure 2 As shown, the pressure-reducing upper valve seat 24 is configured with a stepped structure, which cooperates with the V-shaped valve port 25 to form at least two pressure-reducing levels in the fluid channel to reduce fluid impact. The V-shaped valve port 25 is located on the bottom surface of the pressure-reducing upper valve seat 24 to control the fluid flow rate and prevent turbulence.

[0027] like Figure 3 As shown, the lower valve stem 27 is operated via the lower handle 26 to adjust the opening between the V-shaped pressure reducing valve seat 27 and the V-shaped valve port 25, achieving precise pressure control. The pressure gauge 3 is connected to the valve body 1 to monitor fluid pressure and provide real-time pressure data feedback for easy monitoring and adjustment by the user.

[0028] In practical applications, the cascade multi-stage pressure-reducing regulating valve, through its multi-stage pressure-reducing structure, effectively achieves step-by-step pressure regulation of the fluid, significantly improving the pressure reduction effect and the smoothness of fluid flow. The design of the V-shaped valve port 25 and the stepped pressure-reducing upper valve seat 24 not only reduces fluid impact but also enhances the stability and reliability of the valve. Furthermore, this invention features a compact structure, reducing installation space requirements, simplifying maintenance procedures, and improving production efficiency.

[0029] In practical implementation, the opening degrees of the upper valve stem 22 and the lower valve stem 27 can be adjusted according to actual needs to achieve the desired pressure reduction effect. For example, in applications requiring a larger pressure drop, the distance between the upper valve stem 22 and the lower valve stem 27 can be appropriately increased to increase the pressure reduction level and achieve more stable pressure regulation. Conversely, when the pressure drop requirement is smaller, the distance between the upper valve stem 22 and the lower valve stem 27 can be decreased to reduce the pressure reduction level and ensure the flexibility and accuracy of regulation.

[0030] This utility model's cascade multi-stage pressure reducing regulating valve, through its unique design, effectively solves the limitations of traditional single-stage pressure reducing regulating valves in a wide range of pressure regulation applications, providing a more reliable and efficient solution for industrial applications.

[0031] The working principle and usage process of this utility model: After assembling the various components of this solution in sequence, work according to the above implementation methods according to actual needs to complete all working steps.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] The embodiments described above are not exhaustive, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the above description. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the invention, enabling those skilled in the art to effectively utilize the invention and its modifications. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the protection scope of the invention.

Claims

1. A cascade multi-stage pressure reducing regulating valve, characterized in that, include: The valve body (1) has an internal channel (11) for fluid transport; A valve seat (2) is provided on the valve body (1). The valve seat (2) is provided with an upper handle (21) at the top. An upper valve stem (22) is installed on the upper handle (21). A valve stem spring (23) is provided outside the upper valve stem (22). A pressure-reducing upper valve seat (24) is provided at the bottom of the upper valve stem (22). A V-shaped valve port (25) is provided at the bottom of the pressure-reducing upper valve seat (24). A lower handle (26) is provided at the bottom of the valve body (1). A lower valve stem is provided on the lower handle (26). A V-shaped pressure-reducing valve seat (27) is provided at the end of the lower valve stem. The V-shaped pressure-reducing valve seat (27) and the pressure-reducing upper valve seat (24) are configured as a multi-stage pressure-reducing structure to realize the step-by-step pressure regulation of the fluid. A pressure gauge (3) is connected to the valve body (1) for monitoring fluid pressure.

2. The cascade multi-stage pressure reducing regulating valve according to claim 1, characterized in that: The pressure-reducing upper valve seat (24) is configured with a stepped structure, which cooperates with the V-shaped valve port (25) to form at least two pressure-reducing levels in the fluid channel to reduce fluid impact.

3. The cascade multi-stage pressure reducing regulating valve according to claim 1, characterized in that: The V-shaped valve port (25) is located on the bottom surface of the pressure reducing upper valve seat (24) to control the fluid flow rate and prevent turbulence.

4. The cascade multi-stage pressure reducing regulating valve according to claim 1, characterized in that: The lower valve stem is operated by the lower handle (26) to adjust the opening between the V-shaped pressure reducing valve seat (27) and the V-shaped valve port (25) to achieve precise pressure control.

5. The cascade multi-stage pressure reducing regulating valve according to claim 1, characterized in that: The pressure gauge (3) provides real-time pressure data, facilitating user monitoring and adjustment.

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