Energy-dissipation hedging pressure reducing valve element and hydrogen-related regulating valve with energy-dissipation hedging pressure reducing valve element

Abstract

The pressure reducing valve element comprises a valve element body and a plurality of hedging dispersion pressure reducing pieces, and a hydrogen inlet is formed in the center of the bottom of the valve element body; a plurality of layers of vortex energy dissipation flow channels distributed from top to bottom are formed in the valve element body, and each layer of vortex energy dissipation flow channel communicates with the hydrogen inlet; the outer side of the valve element body is provided with multiple layers of hydrogen outlets in the circumferential direction, wherein the hydrogen outlets correspond to the vortex energy dissipation flow channels in position and communicate with the vortex energy dissipation flow channels. And a plurality of hedging dispersion pressure reducing parts which are arranged at intervals are fixed in each layer of vortex energy dissipation flow channel. The multi-layer vortex energy dissipation flow channel is combined with the thousand-level hedging dispersion pressure reduction piece, the safety, stability and reliability of system operation can be improved, and core equipment support is provided for efficient, safe and large-scale development of the hydrogen energy industry.

Description

Technical Field

[0001] This invention relates to the field of hydrogen / liquid hydrogen pressure reduction and regulation technology, specifically to an energy-dissipating counter-pressure reducing valve core and a hydrogen-related regulating valve having the same. Background Technology

[0002] With the continued rise in demand for clean energy, hydrogen energy has gradually moved from basic research to the core of energy upgrading, showing broad application prospects in fields such as fuel cell vehicles, green chemicals, and aerospace propulsion. Due to the unique physicochemical properties of hydrogen, its storage, transportation, and control systems place extremely high demands on the safety and reliability of equipment. Hydrogen-related regulating valves are no longer ordinary fluid control components, but key safety equipment that integrates extreme sealing, hydrogen embrittlement-resistant materials, intrinsically safe explosion-proof features, and intelligent control. They directly determine the operational safety and efficiency of hydrogen energy systems and are one of the core technologies restricting the large-scale commercial application of hydrogen energy.

[0003] The physicochemical properties of hydrogen present multiple stringent and mutually constraining technical challenges to the design of control valves: First, hydrogen molecules readily penetrate and diffuse, requiring near-zero leakage in valve sealing; second, hydrogen atoms easily induce hydrogen embrittlement in materials, leading to decreased component toughness and cracking, necessitating specialized materials and processes; third, hydrogen has extremely low ignition energy and a wide explosive range, requiring equipment with high-level explosion-proof capabilities; and fourth, it must adapt to extreme operating conditions such as ultra-high pressure and extremely low temperature, for example, hydrogen refueling station pressures can reach 100 MPa, and liquid hydrogen temperatures can drop to -253°C, requiring valves to maintain structural stability and reliable sealing.

[0004] Currently, hydrogen-related control valves still face significant bottlenecks in terms of structure and performance: traditional structures struggle to achieve stable and precise throttling and pressure reduction under ultra-high pressure conditions, generally exhibiting problems such as large pressure fluctuations, lag in dynamic response, and low steady-state control accuracy. Furthermore, they cannot simultaneously balance ultra-high pressure reduction and stabilization with large flow capacity, resulting in poor adaptability of flow characteristics to actual operating conditions, severely limiting their application in scenarios such as large-scale hydrogen refueling stations, centralized hydrogen storage, and large-scale hydrogen production. Simultaneously, existing valves generally suffer from insufficient resistance to hydrogen embrittlement, susceptibility to sealing failure and internal leakage during long-term operation, susceptibility to cavitation erosion of flow channels, reliability degradation under high and low temperature environments, and weak intelligent monitoring and fault warning capabilities, making it difficult to meet the engineering requirements of long-term, high-reliability, and continuous operation under extreme conditions in hydrogen energy systems. Most are concentrated in the low-to-medium pressure range below 20MPa, with significant technological gaps remaining for ultra-high pressure hydrogen-related control valves at 35MPa, 70MPa, and above.

[0005] Therefore, providing an energy-dissipating counter-pressure reducing valve core and a hydrogen-related regulating valve having the same is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0006] In view of this, the present invention provides an energy-dissipating counter-pressure reducing valve core and a hydrogen-related regulating valve having the same, so as to at least solve one of the technical problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An energy dissipation counter-pressure reducing valve core, comprising: The valve core body has a hydrogen inlet at the center of its bottom; the valve core body has multiple layers of vortex energy dissipation channels distributed from top to bottom inside, and each layer of vortex energy dissipation channels is connected to the hydrogen inlet; the outer circumferential direction of the valve core body has multiple layers of hydrogen outlets that correspond to and are connected to the positions of the vortex energy dissipation channels. Multiple counter-dispersion pressure reducing components are fixed in each layer of the vortex energy dissipation channel, arranged at intervals.

[0009] Furthermore, each of the counter-dispersion pressure reducing components includes an outer cylinder, a first straight pipe, four first arc-shaped pipes, a second straight pipe, four second arc-shaped pipes, and a third straight pipe. The outer cylinder is fixed within the vortex energy dissipation channel and has the same curvature as it. The outer cylinder has an inlet and an outlet on both sides. The four first arc-shaped pipes are evenly arranged circumferentially. One end of the first straight pipe is connected to the inlet, and the other end of the first straight pipe is connected to one end of each of the four first arc-shaped pipes. The other ends of each of the four first arc-shaped pipes are connected to one end of each of the second straight pipes. The four second arc-shaped pipes are evenly arranged circumferentially. One end of the third straight pipe is connected to the outlet, and the other end of the third straight pipe is connected to one end of each of the four second arc-shaped pipes. The other ends of each of the four second arc-shaped pipes are connected to the other end of each of the second straight pipes.

[0010] Furthermore, each layer of the vortex energy dissipation channel includes a first vortex channel and a second vortex channel that are concentrically and nested. The inner port of the first vortex channel is the inlet of the first channel, and the inner port of the second vortex channel is the inlet of the second channel. The inlets of the first and second channels are symmetrically distributed at the center. The first and second vortex channels are respectively connected to the corresponding hydrogen outlets.

[0011] Furthermore, the energy dissipation counter-pressure reducing valve core is made of metal 3D printed.

[0012] A hydrogen-related regulating valve includes a valve body, an upper valve cover, a valve stem, packing, a packing pressure plate, a clamping disc spring, and a pressure-reducing valve core as described above. The valve body has a valve body inlet and a valve body outlet. The pressure-reducing valve core is installed inside the valve body via a valve seat. The valve body inlet communicates with the hydrogen inlet. The valve body outlet communicates with the hydrogen outlet. The upper valve cover is fixed to the top of the valve body by a first double-ended stud and a first nut. The valve stem extends through the upper valve cover into the valve core body to block or open the first and second flow channel inlets corresponding to the vortex energy dissipation flow channels. The packing is filled between the valve stem and the upper valve cover. The packing pressure plate is fixed above the upper valve cover by a second double-ended stud and a second nut. The clamping disc spring is sleeved on the valve stem and located between the packing pressure plate and the packing.

[0013] Therefore, the present invention provides an energy-dissipating counter-pressure reducing valve core and a hydrogen-related regulating valve having the same, and compared with the prior art, the present invention has the following beneficial effects: 1) Thousand-level counter-impact dispersion pressure reduction: Through a thousand-level counter-impact dispersion structure, the high-pressure hydrogen medium is reduced smoothly by thousands of counter-impact cycles. This effectively avoids the drastic pressure drop and local high-speed jet caused by single-stage pressure reduction, significantly weakens the kinetic energy of the medium, suppresses cavitation, flashing, and fluid noise, and reduces flow channel erosion and structural vibration. The pressure decreases evenly and smoothly along the flow path, greatly reducing the impact of local high pressure differentials on the seals and materials, alleviating hydrogen embrittlement and flow-induced fatigue, and significantly improving the reliability and service life of the valve under ultra-high pressure, high flow, low temperature, and flammable and explosive conditions. It has outstanding advantages such as smooth pressure reduction, precise pressure stabilization, low noise and low loss, and safety and stability. 2) Centrally Symmetric Vortex Energy Dissipation Flow Channel Structure: The centrally symmetric vortex energy dissipation flow channel structure, through symmetrical flow field, controlled vortex dissipation, and uniform force design, enables the fluid kinetic energy to be dissipated smoothly and gradually, with balanced pressure and velocity distribution. This effectively reduces local high-speed flow, off-center scouring, vibration, and turbulence, significantly improving the symmetry of the flow field and operational stability. The valve body of this structure is subjected to uniform force and has a reasonable stress distribution, which can effectively alleviate hydrogen embrittlement and fatigue damage. It is also compatible with 3D printing, which facilitates the assurance of flow channel accuracy and surface quality. It fundamentally solves the problems of uneven material distribution and high turbulence intensity in traditional structures. At the same time, it suppresses wall wear and reduces flow resistance loss. Under ultra-high pressure and high flow rate hydrogen conditions, it achieves stable pressure reduction with low noise, high reliability, and long service life, and has the advantages of good energy dissipation effect, high operating efficiency, and long service life. 3) Larger flow rate and higher efficiency pressure reduction and stabilization under ultra-high pressure conditions: It adopts a multi-layer vortex energy dissipation channel and a counter-dispersion composite pressure reduction structure, replacing the traditional sudden pressure reduction with uniform pressure distribution along the process. This enables uniform and efficient energy dissipation within a short stroke of the ultra-high pressure hydrogen medium. While ensuring large flow capacity, it reduces local flow velocity, flow resistance and energy consumption, and suppresses jetting, cavitation, flashing and severe vibration. It has excellent pressure regulation, high-precision pressure stabilization and high energy conversion efficiency. Compared with traditional valves, it balances flow capacity and pressure reduction and stabilization performance, greatly improves flow handling capacity, has fast dynamic response and stable operation. It fundamentally solves the contradiction between large flow rate and high-precision pressure reduction, effectively reduces the risk of hydrogen embrittlement and scouring failure, and extends service life. It can meet the ultra-high pressure, large flow rate and high-precision pressure reduction and stabilization requirements of industrial hydrogen production, hydrogen energy storage and transportation, hydrogen refueling stations and other scenarios, and significantly improves the stability, safety, control accuracy and economy of hydrogen energy system operation. 4) A more fault-tolerant integral structure: The thousand-level counter-impact dispersion decompression structure and multi-layer vortex energy dissipation channels are integrated into a single integral part, realizing precise control of the ultra-high pressure hydrogen medium decompression process. The structure is not a simple superposition, but has good fault tolerance. Even if some units are damaged, they can still work together to stably achieve decompression, which greatly improves the reliability and service life of the equipment. The integral processing is carried out by metal 3D printing, which breaks through the bottleneck of traditional turning and milling processes that cannot form internal micro-interlaced channels and cannot guarantee dimensional accuracy and surface quality. It can manufacture multi-level micropores and dispersion channels with high precision, improve material utilization, reduce costs and improve efficiency, and provide key support for the engineering application and technological iteration of core components for ultra-high pressure hydrogen decompression. 5) Wider and more precise flow regulation range: Through the cooperation of multi-layer vortex energy dissipation flow channels and valve stem, the flow channels can be opened continuously in stages, which can broaden the flow regulation range and optimize the regulation gradient. With a 3mm precision flow channel diameter, the flow regulation resolution and control accuracy can be greatly improved, and continuous, stable and precise regulation from small flow to large flow can be achieved. This significantly enhances the valve's regulation accuracy, operating condition adaptability and operational stability under ultra-high pressure hydrogen conditions. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0015] Figure 1 The attached figure is a cross-sectional view of a hydrogen-related regulating valve provided by the present invention; Figure 2 The attached image is... Figure 1 A magnified structural diagram of part A in the middle; Figure 3 The attached image is... Figure 2 Sectional view of AA in the middle; Figure 4 The attached figure is a cross-sectional view of the counter-dispersion pressure reducing component provided by the present invention. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] like Figure 1-4 As shown, this embodiment of the invention discloses an energy-dissipating counter-pressure reducing valve core, including a valve core body 41 and multiple counter-pressure reducing components 42. The valve core body 41 has a hydrogen inlet 411 at the center of its bottom. The valve core body 41 has multiple layers of vortex energy-dissipating channels 412 distributed from top to bottom inside, and each layer of vortex energy-dissipating channels 412 is connected to the hydrogen inlet 411. In this embodiment, the number of layers of vortex energy-dissipating channels 412 is 20. The outer circumferential surface of the valve core body 41 has multiple... Each layer of the vortex energy dissipation channel 412 has a hydrogen outlet 413 that corresponds to and is connected to the vortex energy dissipation channel 412. Each layer of the vortex energy dissipation channel 412 contains multiple spaced-apart counter-dispersion pressure reducing elements 42. In this embodiment, each layer of the vortex energy dissipation channel 412 contains 154 spaced-apart counter-dispersion pressure reducing elements 42, with a spacing of 20mm between adjacent counter-dispersion pressure reducing elements 42. The 20 layers of vortex energy dissipation channels 412 contain a total of 3080 counter-dispersion pressure reducing elements 42. This invention combines multi-layered vortex energy dissipation channels 412 with thousands of counter-dispersion pressure reducing elements 42, which can improve the safety, stability, and reliability of the system operation, providing core equipment support for the efficient, safe, and large-scale development of the hydrogen energy industry.

[0018] Specifically, each counter-dispersion pressure reducing component 42 includes an outer cylinder 421, a first straight pipe 422, four first arc-shaped pipes 423, a second straight pipe 424, four second arc-shaped pipes 425, and a third straight pipe 426. The outer cylinder 421 is fixed inside the vortex energy dissipation channel 412 and has the same curvature as it. The outer cylinder 421 has inlets and outlets on both sides. The four first arc-shaped pipes 423 are evenly arranged circumferentially. One end of the first straight pipe 422 is connected to the inlet, and the other end of the first straight pipe 422 is connected to one end of each of the four first arc-shaped pipes 423. The other ends of the four first arc-shaped tubes 423 are all connected to one end of the second straight tube 424; the four second arc-shaped tubes 425 are evenly arranged circumferentially; one end of the third straight tube 426 is connected to the outlet, and the other end of the third straight tube 426 is connected to one end of the four second arc-shaped tubes 425, and the other ends of the four second arc-shaped tubes 425 are all connected to the other end of the second straight tube 424. In this way, the hydrogen medium can achieve two diversions, four counter-currents, two convergences, and corner, friction, and dispersion pressure stabilization by passing through each counter-current dispersion pressure reducing element 42.

[0019] Based on the above embodiments, the present invention produces beneficial effects: by constructing a multi-stage counter-dispersion structure, the high-pressure hydrogen medium undergoes thousands of counter-dispersions during flow to achieve stable pressure reduction. After the high-pressure gas enters, it flows sequentially through multiple counter-dispersion pressure-reducing components 42. In the initial stage of flow, the flow channel space is constrained by the smaller counter-dispersion orifice, which promotes high-frequency and high-intensity collision and mixing of gas molecules. Energy dissipation is achieved through intermolecular interactions and wall friction. The fluid gradually consumes kinetic energy through a composite process of thousands of splitting, turning, friction, counter-dispersion, merging, and dispersion, and the pressure is uniformly and stably reduced step by step. This method avoids the drastic pressure drop and local high-speed jet caused by single-stage pressure reduction, thereby achieving precise pressure reduction and stabilization of high-pressure hydrogen / liquid hydrogen. It can significantly weaken the kinetic energy of the medium, suppress cavitation, flashing and fluid noise, reduce flow channel erosion and structural vibration, make the pressure loss evenly distributed along the process, reduce the impact of local high pressure difference on seals and materials, alleviate hydrogen embrittlement and flow-induced fatigue, and greatly improve the reliability and service life of valves under ultra-high pressure, high flow, low temperature and flammable and explosive conditions. It is an ideal technical approach to achieve stable pressure reduction, precise pressure stabilization and low noise and low loss of hydrogen-related ultra-high pressure media.

[0020] Specifically, each layer of vortex energy dissipation channel 412 includes a first vortex channel 4121 and a second vortex channel 4122 that are concentrically and nested. In this embodiment, the diameter of the first vortex channel 4121 and the second vortex channel 4122 is 3 mm. 77 flushing and dispersing pressure reducing elements 42 are distributed in both the first vortex channel 4121 and the second vortex channel 4122. The inner port of the first vortex channel 4121 is the first channel inlet 41211, and the inner port of the second vortex channel 4122 is the second channel inlet 41221. The first channel inlet 41211 and the second channel inlet 41221 are centrally symmetrically distributed. The first vortex channel 4121 and the second vortex channel 4122 are respectively connected to the corresponding hydrogen outlet 413.

[0021] Based on the above embodiments, the present invention produces beneficial effects: With symmetrical flow field, vortex dissipation, and uniform force as its core advantages, the fluid forms a controlled vortex along a centrally symmetrical path, achieving gradual dissipation of kinetic energy and balanced pressure and velocity distribution. This significantly reduces local high-speed flow, off-center scouring, and vibration, improving the stability of the flow channel. The symmetrical structure ensures uniform force distribution and reasonable stress distribution on the valve body, effectively mitigating hydrogen embrittlement and fatigue damage. Furthermore, the structure is compatible with 3D printing, ensuring flow channel precision and surface quality. It can achieve low-noise, high-reliability, and long-life stable pressure reduction under ultra-high pressure and high-flow-rate hydrogen conditions. The structure employs a centrally symmetrical multi-inlet design, guiding the fluid to form a stable spiral vortex motion, significantly enhancing the symmetry of the flow field and the uniformity of medium distribution, fundamentally solving the problems of uneven material distribution and high turbulence intensity in traditional inlets. Relying on a stable vortex flow field to achieve uniform energy dissipation significantly improves energy dissipation or fine particle separation efficiency; simultaneously, it suppresses turbulence, reduces wall wear, and lowers flow resistance losses, optimizing energy consumption and improving the overall operating efficiency of the equipment while ensuring flow stability.

[0022] In summary, this invention employs a 20-layer vortex energy dissipation channel 412 and a counter-dispersion pressure reducing element 42 that combines thousands of flow splitting, turning, friction, counter-pressure, confluence, and dispersion. This replaces the traditional single-stage or few-stage rapid pressure reduction method with uniform distributed pressure distribution along the flow path, enabling the ultra-high pressure hydrogen medium to achieve uniform and efficient energy dissipation within a short stroke. While ensuring ultra-large flow capacity, it significantly reduces local flow velocity, flow resistance loss, and energy consumption, effectively suppressing local high-speed jets, cavitation, flashing, and severe vibration. This ensures that the valve maintains excellent pressure regulation characteristics, high-precision pressure stabilization capability, and high energy conversion efficiency under ultra-high pressure, high flow rate, and high pressure differential conditions, greatly improving the operational stability, control accuracy, and reliability of the hydrogen energy fluid system. Compared with traditional pressure reducing valves and regulating valves, its outstanding advantage lies in the high balance between flow capacity and pressure reduction and stabilization performance. It can handle several to tens of times the hydrogen flow rate per unit time. With the same flow capacity, the pressure reduction and stabilization effect is stronger, and the dynamic response is fast and the operation is stable. It fundamentally solves the technical contradiction that traditional valves cannot simultaneously meet the requirements of large flow and high-precision pressure reduction. It significantly extends the service life and reduces the risk of hydrogen embrittlement and erosion failure. It can fully meet the urgent needs of industrial hydrogen production, hydrogen energy storage and transportation, hydrogen refueling stations and energy supply for large flow hydrogen transportation, ultra-high pressure and high-efficiency pressure reduction and high-precision pressure stabilization, and effectively improve the overall operating efficiency, safety and economy of hydrogen energy systems.

[0023] In some embodiments, the energy-dissipating counter-pressure reducing valve core is 3D printed from metal. This invention integrates a 3,000-level counter-pressure dispersion reducing structure and a 20-layer vortex energy-dissipating flow channel 412 into an integral part. This structural design is based on the refined control and depth optimization of the ultra-high pressure hydrogen medium decompression process, and is not a simple structural superposition. It has excellent fault tolerance characteristics. When some counter-pressure structures are damaged, the remaining units can still work together to ensure stable decompression performance and significantly improve equipment reliability and service life. Furthermore, this invention is based on the principle of layer-by-layer stacking and directly manufactures complex shapes according to the three-dimensional model, breaking through the bottleneck of traditional processes (traditional turning and milling are limited by tool size and machining path, making it difficult to form internal micro-interlaced flow channels, and cannot guarantee the accuracy of key dimensions and surface quality, which easily affects the decompression effect). It can form multi-level micropores and dispersion flow channels with high precision, ensuring the size, shape accuracy and surface quality of the decompression unit, while improving material utilization, reducing costs and increasing efficiency, and providing key support for the engineering of core components and the development of ultra-high pressure hydrogen decompression technology.

[0024] This invention also discloses a hydrogen-related regulating valve, comprising a valve body 1, an upper valve cover 2, a valve stem 3, packing, a packing pressure plate, a clamping disc spring, and a pressure-reducing valve core 4 as described above. The valve body 1 has a valve body inlet 11 and a valve body outlet 12. The pressure-reducing valve core 4 is installed inside the valve body 1 via a valve seat 5. The valve body inlet 11 is connected to a hydrogen inlet 411. The valve body outlet 12 is connected to a hydrogen outlet 413. The upper valve cover 2 is fixed to the top of the valve body 1 by a first double-ended stud and a first nut. The valve stem 3 extends through the upper valve cover 2 into the valve core body 41 to block or open the first flow channel inlet 4121 and the second flow channel inlet 4122 corresponding to the vortex energy dissipation flow channel 412. The packing is filled between the valve stem 3 and the upper valve cover 2. The packing pressure plate is fixed above the upper valve cover 2 by a second double-ended stud and a second nut. The clamping disc spring is sleeved on the valve stem 3 and located between the packing pressure plate and the packing. This invention employs a structural design that combines 20 layers of vortex energy dissipation channels 412 with a valve stem 3. During the adjustment process, the valve stem 3 can achieve sequential and continuous opening of each channel layer. The configuration of 20 layers of channels significantly expands the valve's flow rate adjustment range, making the flow rate adjustment range wider and the adjustment gradient smoother. The 3mm precisely controlled channel diameter effectively ensures high resolution and high precision in flow rate adjustment, achieving continuous, stable, and precise control from small to large flow rates, and significantly improving the valve's adjustment performance and adaptability under ultra-high pressure hydrogen conditions.

[0025] Working principle of the invention: When the valve stem 3 moves upward, the bottommost vortex energy dissipation channel 412 opens first. The ultra-high pressure hydrogen medium in the valve body 1 enters the bottommost (first layer) vortex energy dissipation channel 412 after passing through the valve seat 5. This channel guides the fluid to form a stable spiral vortex motion. During the motion, hundreds of opposing dispersion and pressure reducing elements 42 continuously perform hundreds of diversions, turns, friction, oppositions, convergences, and dispersions, greatly reducing the pressure and velocity of the hydrogen medium, which finally flows out through each hydrogen outlet 413. When the valve stem 3 continues to move upward, the second bottommost (second layer), third layer... 20th layer vortex energy dissipation channels 412 open sequentially. The high pressure hydrogen medium enters each channel sequentially for pressure reduction and stabilization, and finally flows out, thereby realizing the valve's function of regulating the flow rate and pressure of the medium.

[0026] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0027] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pressure-reducing valve core for energy dissipation and counter-pressure relief, characterized in that, include: The valve core body has a hydrogen inlet at the center of its bottom; the valve core body has multiple layers of vortex energy dissipation channels distributed from top to bottom inside, and each layer of vortex energy dissipation channels is connected to the hydrogen inlet; the outer circumferential direction of the valve core body has multiple layers of hydrogen outlets that correspond to and are connected to the positions of the vortex energy dissipation channels. Multiple counter-dispersion pressure reducing components are fixed in each layer of the vortex energy dissipation channel, arranged at intervals.

2. The energy-dissipating counter-pressure reducing valve core according to claim 1, characterized in that, Each of the aforementioned counter-dispersion pressure reducing components includes an outer cylinder, a first straight pipe, four first arc-shaped pipes, a second straight pipe, four second arc-shaped pipes, and a third straight pipe. The outer cylinder is fixed inside the vortex energy dissipation channel and has the same curvature as it. The outer cylinder has an inlet and an outlet on both sides. Four first arc-shaped tubes are evenly arranged circumferentially. One end of the first straight tube is connected to the inlet, and the other end of the first straight tube is connected to one end of each of the four first arc-shaped tubes. The other ends of each of the four first arc-shaped tubes are connected to one end of each of the second straight tubes. Four second arc-shaped tubes are evenly arranged circumferentially. One end of the third straight tube is connected to the outlet, and the other end of the third straight tube is connected to one end of each of the four second arc-shaped tubes. The other ends of each of the four second arc-shaped tubes are connected to the other end of each of the second straight tubes.

3. The energy dissipation counter-pressure reducing valve core according to claim 2, characterized in that, Each layer of the vortex energy dissipation channel includes a first vortex channel and a second vortex channel that are concentrically and nested. The inner port of the first vortex channel is the first channel inlet, and the inner port of the second vortex channel is the second channel inlet. The first channel inlet and the second channel inlet are symmetrically distributed at the center. The first vortex channel and the second vortex channel are respectively connected to the corresponding hydrogen outlet.

4. A pressure-reducing valve core for energy dissipation and counter-pressure relief according to any one of claims 1-3, characterized in that, The energy dissipation counter-pressure reducing valve core is made of metal 3D printing.

5. A hydrogen-related regulating valve, characterized in that, The valve includes a valve body, an upper valve cover, a valve stem, packing, a packing pressure plate, a clamping disc spring, and a pressure-reducing valve core as described in any one of claims 1-4. The valve body has a valve body inlet and a valve body outlet. The pressure-reducing valve core is installed inside the valve body via a valve seat. The valve body inlet communicates with the hydrogen inlet. The valve body outlet communicates with the hydrogen outlet. The upper valve cover is fixed to the top of the valve body by a first double-ended stud and a first nut. The valve stem extends through the upper valve cover into the valve core body to block or open the first and second flow channel inlets corresponding to the vortex energy dissipation flow channels. The packing is filled between the valve stem and the upper valve cover. The packing pressure plate is fixed above the upper valve cover by a second double-ended stud and a second nut. The clamping disc spring is sleeved on the valve stem and located between the packing pressure plate and the packing.

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