Globe valve with adaptive flow rate ratio

Abstract

The present invention relates to the technical field of valves, and discloses a globe valve with an adaptive flow ratio, including: a valve body for carrying and fixing each component of the globe valve; a liquid inlet pipe for introducing fluid into the globe valve, and the liquid inlet pipe is fixedly connected to the left side of the valve body; a liquid outlet pipe for discharging fluid from the globe valve. For this globe valve with an adaptive flow ratio, by means of the cutting mechanism, when the liquid passes through the impeller, it drives the impeller to rotate clockwise, and the cutting column rotates in the opposite direction relative to the impeller, which can effectively relieve the pressure fluctuation in the liquid flow, reduce the water hammer effect or impact caused by sudden pressure changes, and protect other components in the system. Especially when the liquid flow rate is large or the flow velocity is fast, the rotational movement of the cutting column rotating in the opposite direction relative to the impeller helps to generate a "resistance" mechanism in the liquid flow. This reverse dynamic effect will consume a part of the kinetic energy of the liquid, thereby relieving the sudden pressure fluctuation that may occur in the fluid.

Description

Technical Field

[0001] The present invention relates to the technical field of valves, and particularly to a globe valve with an adaptive flow ratio. Background Art

[0002] A globe valve is a kind of valve that relies on the stem pressure to block the flow passage through the valve plug. It belongs to a forced-sealing valve. When the globe valve is closed, an external force needs to be applied to the stem to press the valve plug tightly against the valve seat to achieve the sealing function. Its closing member usually adopts a conical or planar structure to improve the sealing performance and wear resistance. The globe valve is suitable for cutting off or regulating the flow rate of fluids and is commonly used in pipeline systems with high pressure, high temperature, or corrosive media.

[0003] Petroleum or oil-containing fluids have a relatively large density and certain compressibility, which enables them to temporarily store energy when subjected to pressure and transfer the energy through expansion when the pressure is released. This characteristic causes the fluid to transfer energy through compression and expansion when the pressure in the pipeline system suddenly changes, thereby exacerbating the pressure fluctuation and forming a shock wave. The pressure gradient is the main reason for driving fluid flow. When the pressure at a certain point in the pipeline system suddenly increases, an additional driving force will be generated to push the fluid to accelerate. On the contrary, when the pressure suddenly drops, the fluid may produce a reverse flow or a decrease in flow rate due to inertia. This pressure change will directly affect the flow rate of the fluid and trigger violent dynamic changes under certain conditions. For example, when the globe valve is quickly closed in the pipeline, the flow rate of the fluid will suddenly change. Due to the rapid change of the momentum of the fluid, a large inertial force is generated, which causes the pressure in the pipeline to rise rapidly. The compressibility of petroleum-based fluids further amplifies this pressure change, making the pressure wave propagate along the pipeline in a stronger form and may be superimposed with the reflected pressure wave to form a water hammer effect. The pressure wave in the water hammer effect propagates through the compressibility of the liquid, and the impact energy it carries directly acts on the pipeline wall and the valve, causing the equipment to bear additional stress. This impact will cause the valve seal to fail, the pipeline to vibrate and fatigue, and even damage to the local structure, posing a threat to the safe operation of the pipeline system. Through the above analysis, it can be clear that: the density and compressibility characteristics of petroleum or oil-containing fluids amplify the impact of pressure fluctuations, the rapid change in flow rate is the key to the formation of the water hammer effect, and the propagation and superposition of pressure waves are the fundamental reasons for the impact on the pipeline and the valve. Summary of the Invention

[0004] Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the present invention provides a globe valve with an adaptive flow ratio, which solves the problem that petroleum or oil-containing fluids are prone to cause the water hammer effect due to their large density and compressibility, resulting in impact damage to the pipeline and the valve when the pressure suddenly changes.

[0006] (2) Technical Solution

[0007] To achieve the above object, the present invention provides the following technical solution: a globe valve with an adaptive flow ratio, comprising: a valve body for carrying and fixing each component of the globe valve; an inlet pipe for introducing fluid into the globe valve, the inlet pipe being fixedly connected to the left side of the valve body; an outlet pipe for discharging fluid from the globe valve, the outlet pipe being fixedly connected to the right side of the valve body; an adaptive flow ratio mechanism provided on the outlet pipe and the valve body for regulating excessive pressure in the outlet pipe; an energy absorption mechanism provided on the inner wall of the inlet pipe for alleviating and absorbing the water hammer effect; a power storage mechanism for storing energy through power storage; a cutting mechanism for cutting and buffering the liquid flow under normal circumstances, and reversely rotating to relieve pressure fluctuations and reduce impacts when encountering water hammer; and a buffer mechanism for absorbing and slowing down the impact force in the fluid flow.

[0008] Preferably, the adaptive flow ratio mechanism includes a first spring, one end of the first spring is fixedly connected to the inner wall of the outlet pipe, the other end of the first spring is fixedly connected to a first disc block, one end of a connecting transmission rod is fixedly connected to the outer wall of the first disc block, the other end of the connecting transmission rod is fixedly connected to a blocking square plate, and a hollow connecting block is fixedly connected to the inner wall of the valve body.

[0009] Preferably, the outer wall of the first disc block is piston-connected to the inner wall of the outlet pipe, the inner wall of the hollow connecting block is piston-connected to the blocking square plate, the outer wall of the connecting transmission rod is slidably connected to the inner wall of the outlet pipe, and the inner wall of the hollow connecting block on the inner wall of the outlet pipe is slidably connected...

[0010] Preferably, the energy absorption mechanism includes a second disc block, the second disc block is piston-connected to the inner wall of the inlet pipe, one end of a sealed telescopic tube is fixedly connected to the outer wall of the second disc block, the other end of the sealed telescopic tube is fixedly connected to a positioning block, one end of a second spring is fixedly connected to the inner wall of the sealed telescopic tube, the other end of the second spring is fixedly connected to the positioning block, a through-hole groove is formed on the inner wall of the positioning block, a connecting plate is fixedly connected to the inner wall of the positioning block, one end of a third spring is fixedly connected to the outer wall of the connecting plate, the other end of the third spring is fixedly connected to a sealing plate, one end of a first telescopic rod is fixedly connected to the outer wall of the sealing plate, and the other end of the first telescopic rod is fixedly connected to the outer wall of the connecting plate.

[0011] Preferably, the outer wall of the positioning block is fixedly connected to the inner wall of the inlet pipe, and micro-through holes are formed on the inner wall of the sealing plate.

[0012] Preferably, the energy storage mechanism includes a second telescopic rod. One end of the second telescopic rod is rotatably connected to the inner wall of the second disc block, and the other end of the second telescopic rod is fixedly connected to a central connecting shaft. An annular member is fixedly connected to the outer wall of the liquid inlet pipe. One end of a scroll spring is fixedly connected to the inner wall of the annular member, and the other end of the scroll spring is fixedly connected to the outer wall of the central connecting shaft. One end of a fourth spring is fixedly connected to the outer wall of the second telescopic rod, and the other end of the fourth spring is fixedly connected to a trapezoidal block. A fixed ring member is fixedly connected to the inner wall of the liquid inlet pipe, and a positioning trapezoidal member is fixedly connected to the inner wall of the fixed ring member.

[0013] Preferably, the outer wall of the trapezoidal block is slidably connected to the inner wall of the second telescopic rod. There are several positioning trapezoidal members, and the positioning trapezoidal members are arranged in a circular array.

[0014] Preferably, the cutting mechanism includes a third telescopic rod. One end of the third telescopic rod is fixedly connected to the outer wall of the second telescopic rod, and the other end of the third telescopic rod is fixedly connected to a right cylindrical block. A cutting column is fixedly connected to the outer wall of the right cylindrical block. A right gear ring is fixedly connected to the outer wall of the right cylindrical block. An intermediate bevel gear is rotatably connected to the inner wall of the liquid inlet pipe. The intermediate bevel gear meshes with the right gear ring. A left connecting shaft is rotatably connected to the inner wall of the liquid inlet pipe. A left cylindrical block is fixedly connected to the outer wall of the left connecting shaft. An impeller is fixedly connected to the outer wall of the left cylindrical block. A left gear ring is fixedly connected to the outer wall of the left cylindrical block. The outer wall of the left gear ring meshes with the intermediate bevel gear.

[0015] Preferably, the buffer mechanism includes a fixed positioning member. The fixed positioning member is fixedly connected to the inner wall of the liquid inlet pipe. One end of a fifth spring is fixedly connected to the outer wall of the fixed positioning member, and the other end of the fifth spring is fixedly connected to a third disc block. One end of a fourth telescopic rod is fixedly connected to the outer wall of the third disc block, and the other end of the fourth telescopic rod is fixedly connected to the outer wall of the fixed positioning member. One end of a connecting rod member is fixedly connected to the outer wall of the third disc block, and the other end of the connecting rod member is fixedly connected to a cylindrical trigger block. A hollow cylindrical block is fixedly connected to the inner wall of the liquid inlet pipe.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the present invention provides a stop valve with an adaptive flow ratio, having the following beneficial effects:

[0018] 1. The globe valve with adaptive flow ratio is provided with a cutting mechanism. When the liquid passes through the impeller, it drives the impeller to rotate clockwise, and the cutting column rotates reversely relative to the impeller, which can effectively relieve the pressure fluctuation in the liquid flow, reduce the water hammer effect or impact caused by sudden pressure changes, and protect other components in the system, especially when the liquid flow rate is large or the flow velocity is fast. The reverse rotation of the cutting column relative to the impeller helps to generate a "resistance" mechanism in the liquid flow. This reverse dynamic effect will consume a part of the kinetic energy of the liquid, thus relieving the sudden pressure fluctuation that may occur in the fluid.

[0019] 2. The globe valve with adaptive flow ratio is provided with an adaptive flow ratio mechanism. When the liquid pressure output from the valve body to the liquid outlet pipe is too high, the high-pressure oil in the liquid outlet pipe forms a pressure on the first disc block, causing the first disc block to compress the first spring, and the first disc block drives the connecting transmission rod. The connecting transmission rod drives the blocking square plate to move leftward, blocking the left side of the valve body, thereby reducing the liquid entering the valve body, avoiding excessive flow, and playing the role of adaptive flow control. By reducing the flow rate, it can effectively prevent unstable conditions caused by excessive pressure in the system, avoid pressure fluctuations caused by excessive flow, and this adjustment mechanism can reduce the impact on the valve body and the entire pipeline system due to excessive flow or pressure, avoid the water hammer effect or other potential damages, and ensure the safe operation of the system.

[0020] 3. The globe valve with adaptive flow ratio is provided with an energy absorption mechanism. The instantaneous high impact force is partially absorbed and dispersed, preventing it from being directly transmitted to other components of the pipeline system and avoiding equipment damage caused by instantaneous high pressure. The air in the sealed telescopic tube is discharged by squeezing and pushing open the sealing plate, but when the second spring tries to return to its original state, the air can only slowly enter through the small through holes. This design increases the resistance of the spring to release the compressed energy, delays the elongation process of the sealed telescopic tube, and prevents the absorbed impact force from being quickly released, avoiding the generation of secondary shock waves. The water hammer effect usually accumulates pressure due to the repeated reflection of shock waves, resulting in greater system damage. This structure breaks the cumulative effect of the water hammer impact force through buffering and staged release, reducing the harm of the water hammer to the system from the source.

[0021] 4. The globe valve with adaptive flow ratio is provided with a buffer mechanism. When the impact force of the water hammer effect of the liquid comes, the liquid impacts the third disk block, causing the third disk block to squeeze the fifth spring, playing a buffering role. At the same time, the third disk block drives the connecting rod member, and the connecting rod member drives the cylindrical trigger block to be quickly pushed. When the cylindrical trigger block quickly moves and impacts the full non-Newtonian fluid placed in the hollow cylindrical block, it can drive the hollow cylindrical block to move. At this time, the hollow cylindrical block drives the second disk block to move to the right, the second disk block drives one end of the second telescopic rod to move to the right, and the second telescopic rod drives the trapezoidal block to move to the right. At this time, the positioning trapezoidal member no longer limits the trapezoidal block, so that the trapezoidal block can rotate clockwise. At this time, the scroll spring is released to drive the second telescopic rod to rotate, the second telescopic rod drives the third telescopic rod to rotate, the third telescopic rod drives the cutting column to rotate clockwise, the cutting column drives the left cylindrical block to rotate counterclockwise through the intermediate bevel gear, and the left cylindrical block drives the impeller to rotate counterclockwise. When the impeller rotates counterclockwise, it drives the liquid to move away from the second telescopic rod, counteracting the incoming water hammer, thereby further effectively reducing the impact force of the water hammer effect. Further, the water hammer effect generated when the valve body adaptively adjusts the flow rate is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 FIG. is a schematic diagram of the overall structure of a globe valve with adaptive flow ratio proposed by the present invention;

[0023] Figure 2 FIG. is a schematic diagram of the structure of the adaptive flow ratio mechanism of a globe valve with adaptive flow ratio proposed by the present invention;

[0024] Figure 3 FIG. is a schematic cross-sectional structure diagram of the liquid inlet pipe of a globe valve with adaptive flow ratio proposed by the present invention;

[0025] Figure 4 FIG. is a schematic diagram of the structure of the sealed telescopic pipe of a globe valve with adaptive flow ratio proposed by the present invention;

[0026] Figure 5 FIG. is a schematic cross-sectional structure diagram of the sealed telescopic pipe of a globe valve with adaptive flow ratio proposed by the present invention;

[0027] Figure 6 FIG. is a schematic diagram of the structure of the micro through hole of a globe valve with adaptive flow ratio proposed by the present invention;

[0028] Figure 7 FIG. is a schematic diagram of the structure of the energy storage mechanism of a globe valve with adaptive flow ratio proposed by the present invention;

[0029] Figure 8 FIG. is a schematic diagram of the structure of the fixed ring member of a globe valve with adaptive flow ratio proposed by the present invention;

[0030] Figure 9 Structural schematic diagram of a trapezoidal block of a globe valve with an adaptive flow ratio proposed by the present invention;

[0031] Figure 10 Structural schematic diagram of a third telescopic rod of a globe valve with an adaptive flow ratio proposed by the present invention;

[0032] Figure 11 Structural schematic diagram of a cutting mechanism of a globe valve with an adaptive flow ratio proposed by the present invention;

[0033] Figure 12 Structural schematic diagram of a buffer mechanism of a globe valve with an adaptive flow ratio proposed by the present invention;

[0034] Figure 13 Cross-sectional structural schematic diagram of a hollow cylindrical block of a globe valve with an adaptive flow ratio proposed by the present invention.

[0035] In the figure: 1, valve body; 2, liquid inlet pipe; 3, liquid outlet pipe; 4, adaptive flow ratio mechanism; 41, first spring; 42, first disc block; 43, connecting transmission rod; 44, blocking square disc; 45, hollow connecting block; 5, energy absorption mechanism; 51, second disc block; 52, sealed telescopic pipe; 53, positioning block; 54, second spring; 55, through hole groove; 56, connecting plate; 57, third spring; 58, sealing plate; 59, first telescopic rod; 510, micro through hole; 6, energy storage mechanism; 61, second telescopic rod; 62, annular part; 63, scroll spring; 64, central connecting shaft; 65, fourth spring; 66, trapezoidal block; 67, fixed ring part; 68, positioning trapezoidal part; 7, cutting mechanism; 71, third telescopic rod; 72, right cylindrical block; 73, cutting column; 74, right gear ring; 75, intermediate bevel gear; 76, left connecting shaft; 77, left cylindrical block; 78, impeller; 79, left gear ring; 8, buffer mechanism; 81, fixed positioning part; 82, fifth spring; 83, third disc block; 84, fourth telescopic rod; 85, connecting rod member; 86, hollow cylindrical block; 87, cylindrical trigger block. Specific embodiments

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] Please refer to Figures 1-13, A globe valve with an adaptive flow ratio, comprising: a valve body 1, which is used to carry and fix each component of the globe valve, and provides a basic structure for fluid passage and flow control. The valve body 1 is an electric valve body 1 that can adaptively adjust the flow ratio and automatically adjust the fluid throughput according to system requirements, so as to achieve precise flow control. The flow control of the valve body 1 on the oil pipeline will cause a water hammer effect, mainly because the electric valve body 1 may cause sudden changes in flow velocity when adjusting the flow rate. When the valve body 1 is quickly opened and closed or the flow rate is adjusted too quickly, the momentum of the fluid changes violently, resulting in the formation of pressure waves. Petroleum-based fluids have a large density and certain compressibility. When the pressure of the fluid suddenly changes, it will accelerate or decelerate rapidly, causing the pressure wave to propagate in the pipeline. When these pressure waves encounter the resistance of the pipeline or the control of the valve, they may be reflected and superimposed, forming a water hammer effect, which impacts and damages the pipeline and the valve. This electric valve body 1 is an existing technology, so it will not be elaborated here; an inlet pipe 2, which is used to introduce fluid into the globe valve, and the inlet pipe 2 is fixedly connected to the left side of the valve body 1; an outlet pipe 3, which is used to discharge fluid from the globe valve, and the outlet pipe 3 is fixedly connected to the right side of the valve body 1. An adaptive flow ratio mechanism 4 is arranged on the outlet pipe 3 and the valve body 1, and is used to adjust the excessive pressure in the outlet pipe 3; an energy absorption mechanism 5 is arranged on the inner wall of the inlet pipe 2, and is used to relieve and absorb the water hammer effect, and reduce the damage to the valve body 1 and the pipeline system caused by the sudden change of fluid pressure; a power storage mechanism 6 is used to store energy through power storage, so as to release it when needed, help to stably control the fluid flow, relieve the water hammer effect, and ensure the stability and reliability of the valve operation; a cutting mechanism 7 is used to cut and buffer the liquid flow under normal circumstances to smooth the fluid flow, and when encountering a water hammer, it rotates in the reverse direction to relieve the pressure fluctuation and reduce the impact, avoiding the damage of the water hammer effect to the pipeline and the valve; a buffer mechanism 8 is used to absorb and slow down the impact force in the fluid flow, especially when encountering a water hammer effect, by triggering the power storage mechanism 6 to release energy, relieve the pressure fluctuation, and further reduce the damage to the pipeline and the valve.

[0038] The adaptive flow rate proportional mechanism 4 includes a first spring 41. One end of the first spring 41 is fixedly connected to the inner wall of the liquid outlet pipe 3, and the other end of the first spring 41 is fixedly connected to a first disc block 42. The outer wall of the first disc block 42 is fixedly connected to one end of a connecting transmission rod 43, and the other end of the connecting transmission rod 43 is fixedly connected to a blocking square plate 44. A hollow connecting block 45 is fixedly connected to the inner wall of the valve body 1. When the liquid pressure output from the valve body 1 to the liquid outlet pipe 3 is too high, the high-pressure oil in the liquid outlet pipe 3 forms a pressure on the first disc block 42, causing the first disc block 42 to compress the first spring 41, so that the first disc block 42 drives the connecting transmission rod 43, and the connecting transmission rod 43 drives the blocking square plate 44 to move leftward, blocking the left side of the valve body 1, thereby reducing the liquid entering the valve body 1, avoiding excessive flow rate, and playing a role in adaptive flow control. By reducing the flow rate, it can effectively prevent the unstable situation caused by excessive pressure in the system, avoid the pressure fluctuation caused by excessive flow rate. This adjustment mechanism can reduce the impact on the valve body 1 and the entire pipeline system due to too high flow rate or pressure, avoid water hammer effect or other potential damages, and ensure the safe operation of the system. The outer wall of the first disc block 42 is piston-connected to the inner wall of the liquid outlet pipe 3 to avoid liquid leakage and ensure that the fluid only flows along the predetermined channel. The inner wall of the hollow connecting block 45 is piston-connected to the blocking square plate 44, and the blocking square plate 44 slides left and right to block and open the through groove of the hollow connecting block 45. The outer wall of the connecting transmission rod 43 is slidably connected to the inner wall of the liquid outlet pipe 3, and the inner wall of the liquid outlet pipe 3 is slidably connected to the inner wall of the hollow connecting block 45.

[0039] The energy absorption mechanism 5 includes a second disc block 51. The second disc block 51 is piston-connected to the inner wall of the liquid inlet pipe 2. The outer wall of the second disc block 51 is fixedly connected to one end of a sealed telescopic tube 52, and the other end of the sealed telescopic tube 52 is fixedly connected to a positioning block 53. One end of a second spring 54 is fixedly connected to the inner wall of the sealed telescopic tube 52, and the other end of the second spring 54 is fixedly connected to the positioning block 53. A through hole groove 55 is formed in the inner wall of the positioning block 53. A connecting plate 56 is fixedly connected to the inner wall of the positioning block 53. One end of a third spring 57 is fixedly connected to the outer wall of the connecting plate 56, and the other end of the third spring 57 is fixedly connected to a sealing plate 58. One end of a first telescopic rod 59 is fixedly connected to the outer wall of the sealing plate 58, and the other end of the first telescopic rod 59 is fixedly connected to the outer wall of the connecting plate 56. The outer wall of the positioning block 53 is fixedly connected to the inner wall of the liquid inlet pipe 2. A micro through hole 510 is formed in the inner wall of the sealing plate 58.

[0040] The energy storage mechanism 6 includes a second telescopic rod 61. One end of the second telescopic rod 61 is rotatably connected to the inner wall of the second disc block 51, and the other end of the second telescopic rod 61 is fixedly connected to a central connecting shaft 64. An annular member 62 is fixedly connected to the outer wall of the liquid inlet pipe 2. One end of a scroll spring 63 is fixedly connected to the inner wall of the annular member 62, and the other end of the scroll spring 63 is fixedly connected to the outer wall of the central connecting shaft 64. One end of a fourth spring 65 is fixedly connected to the outer wall of the second telescopic rod 61, and the other end of the fourth spring 65 drives and is fixedly connected to a trapezoidal block 66. A fixed ring member 67 is fixedly connected to the inner wall of the liquid inlet pipe 2, and a positioning trapezoidal member 68 is fixedly connected to the inner wall of the fixed ring member 67. The outer wall of the trapezoidal block 66 is slidably connected to the inner wall of the second telescopic rod 61. A plurality of positioning trapezoidal members 68 are provided, and the positioning trapezoidal members 68 are arranged in a circular array.

[0041] The cutting mechanism 7 includes a third telescopic rod 71. One end of the third telescopic rod 71 is fixedly connected to the outer wall of the second telescopic rod 61. The other end of the third telescopic rod 71 is fixedly connected with a right cylindrical block 72. A cutting column 73 is fixedly connected to the outer wall of the right cylindrical block 72. A right gear ring 74 is fixedly connected to the outer wall of the right cylindrical block 72. An intermediate bevel gear 75 is rotatably connected to the inner wall of the liquid inlet pipe 2. The intermediate bevel gear 75 meshes with the right gear ring 74. A left connecting shaft 76 is rotatably connected to the inner wall of the liquid inlet pipe 2. A left cylindrical block 77 is fixedly connected to the outer wall of the left connecting shaft 76. An impeller 78 is fixedly connected to the outer wall of the left cylindrical block 77. A left gear ring 79 is fixedly connected to the outer wall of the left cylindrical block 77. The outer wall of the left gear ring 79 meshes with the intermediate bevel gear 75. When the liquid passes through the impeller 78, it drives the impeller 78 to rotate clockwise. The impeller 78 drives the right gear ring 74 to rotate counterclockwise through the intermediate bevel gear 75. The right gear ring 74 drives the right cylindrical block 72 to rotate counterclockwise. The right cylindrical block 72 drives the cutting column 73 to rotate counterclockwise. The cutting column 73 rotates in reverse relative to the impeller 78, which can effectively relieve the pressure fluctuation in the liquid flow and reduce the water hammer effect or impact caused by sudden pressure changes, protecting other components in the system, especially when the liquid flow rate is large or the flow velocity is fast. The reverse rotation action of the cutting column 73 relative to the impeller 78 helps to generate a "resistance" mechanism in the liquid flow. Specifically, when the liquid flow velocity is high, or when there is a sudden pressure change during the flow process, the reversely rotating cutting column 73 can exert a certain resistance or adjustment effect on the fluid. This reverse dynamic action will consume a part of the kinetic energy of the liquid, thereby relieving the sudden pressure fluctuation that may occur in the fluid. At this time, the third telescopic rod 71 drives the second telescopic rod 61 to rotate, so that when the second telescopic rod 61 rotates counterclockwise, it drives the trapezoidal block 66 to rotate. The inclined surface of the trapezoidal block 66 abuts against the inclined surface of the positioning trapezoidal member 68. At this time, the trapezoidal block 66 is squeezed by the positioning trapezoidal member 68, so that the trapezoidal block 66 repeatedly squeezes the fourth spring 65 downward. At this time, the second telescopic rod 61 rotates to drive the central connecting shaft 64 to rotate, and the central connecting shaft 64 drives the scroll spring 63 to store energy. When the second telescopic rod 61 rotates clockwise, it drives the trapezoidal block 66 to rotate clockwise. The straight surface of the trapezoidal block 66 abuts against the straight surface of the positioning trapezoidal member 68, so that the trapezoidal block 66 cannot rotate clockwise, and the second telescopic rod 61 can only rotate counterclockwise at this time to drive the scroll spring 63 to store energy.

[0042] The buffer mechanism 8 includes a fixed positioning member 81, which is fixedly connected to the inner wall of the liquid inlet pipe 2. One end of a fifth spring 82 is fixedly connected to the outer wall of the fixed positioning member 81, and the other end of the fifth spring 82 is fixedly connected to a third disk block 83. One end of a fourth telescopic rod 84 is fixedly connected to the outer wall of the third disk block 83, and the other end of the fourth telescopic rod 84 is fixedly connected to the outer wall of the fixed positioning member 81. One end of a connecting rod member 85 is fixedly connected to the outer wall of the third disk block 83, and the other end of the connecting rod member 85 is fixedly connected to a cylindrical trigger block 87. A hollow cylindrical block 86 is fixedly connected to the inner wall of the liquid inlet pipe 2. The hollow cylindrical block 86 is filled with non-Newtonian fluid. When the third disk block 83 is subjected to a small impact usually, the third disk block 83 drives the connecting rod member 85 and the cylindrical trigger block 87 to move relatively slowly. When the impact force of the water hammer effect of the liquid comes, the liquid impacts the third disk block 83, causing the third disk block 83 to squeeze the fifth spring 82, playing a buffering role. At the same time, the third disk block 83 drives the connecting rod member 85, and the connecting rod member 85 drives the cylindrical trigger block 87 to be quickly pushed. When the cylindrical trigger block 87 quickly moves and impacts the non-Newtonian fluid filled in the hollow cylindrical block 86, it can drive the hollow cylindrical block 86 to move. At this time, the hollow cylindrical block 86 drives the second disk block 51 to move to the right. The second disk block 51 drives one end of the second telescopic rod 61 to move to the right, and the second telescopic rod 61 drives the trapezoidal block 66 to move to the right. At this time, the positioning trapezoidal member 68 no longer limits the trapezoidal block 66, enabling the trapezoidal block 66 to rotate clockwise. At this time, the scroll spring 63 is released to drive the second telescopic rod 61 to rotate. The second telescopic rod 61 drives the third telescopic rod 71 to rotate, and the third telescopic rod 71 drives the cutting column 73 to rotate clockwise. The cutting column 73 drives the left cylindrical block 77 to rotate counterclockwise through the intermediate bevel gear 75. The left cylindrical block 77 drives the impeller 78 to rotate counterclockwise. When the impeller 78 rotates counterclockwise, it drives the liquid to move away from the second telescopic rod 61, counteracting the incoming water hammer, thereby further effectively reducing the impact force of the water hammer effect.

[0043] In summary, for the globe valve with adaptive flow ratio, when the liquid pressure output from the valve body 1 to the liquid outlet pipe 3 is too high, the high-pressure oil in the liquid outlet pipe 3 forms a pressure on the first disk block 42, causing the first disk block 42 to compress the first spring 41. The first disk block 42 drives the connecting transmission rod 43, and the connecting transmission rod 43 drives the blocking square disk 44 to move to the left, blocking the left side of the valve body 1, thereby reducing the liquid entering the valve body 1, avoiding excessive flow, and playing a role in adaptive flow control. By reducing the flow, it can effectively prevent instability in the system due to excessive pressure, avoid pressure fluctuations caused by excessive flow. This adjustment mechanism can reduce the impact on the valve body 1 and the entire pipeline system due to excessive flow or pressure, avoid the water hammer effect or other potential damages, and ensure the safe operation of the system.

[0044] When the liquid passes through the impeller 78, it drives the impeller 78 to rotate clockwise. The impeller 78 drives the right gear ring 74 to rotate counterclockwise through the intermediate bevel gear 75. The right gear ring 74 drives the right cylindrical block 72 to rotate counterclockwise. The right cylindrical block 72 drives the cutting column 73 to rotate counterclockwise. The cutting column 73 rotates in reverse relative to the impeller 78, which can effectively relieve the pressure fluctuation in the liquid flow, reduce the water hammer effect or impact caused by sudden pressure changes, and protect other components in the system, especially when the liquid flow rate is large or the flow velocity is fast. The reverse rotation of the cutting column 73 relative to the impeller 78 helps to generate a "resistance" mechanism in the liquid flow. Specifically, when the liquid flow velocity is high or there is a sudden pressure change during the flow process, the reversely rotating cutting column 73 can exert a certain resistance or adjustment effect on the fluid. This reverse dynamic effect will consume a part of the kinetic energy of the liquid, thereby relieving the sudden pressure fluctuation that may occur in the fluid.

[0045] At this time, the telescopic rod three 71 drives the telescopic rod two 61 to rotate, so that when the telescopic rod two 61 rotates counterclockwise, it drives the trapezoidal block 66 to rotate. The inclined surface of the trapezoidal block 66 abuts against the inclined surface of the positioning trapezoidal part 68. At this time, the trapezoidal block 66 is squeezed by the positioning trapezoidal part 68, so that the trapezoidal block 66 repeatedly squeezes the spring four 65 downward. At this time, the telescopic rod two 61 rotates to drive the central connecting shaft 64 to rotate, and the central connecting shaft 64 drives the scroll spring 63 to store energy. When the telescopic rod two 61 rotates clockwise, it drives the trapezoidal block 66 to rotate clockwise. The straight surface of the trapezoidal block 66 abuts against the straight surface of the positioning trapezoidal part 68, so that the trapezoidal block 66 cannot rotate clockwise, and the telescopic rod two 61 can only rotate counterclockwise at this time to drive the scroll spring 63 to store energy.

[0046] When the disk block two 51 encounters a water hammer impact, the disk block two 51 squeezes the sealing telescopic tube 52, and the spring two 54 inside the sealing telescopic tube 52 is compressed. The water hammer impact force is partially converted into the compression energy storage of the spring two 54. And at this time, the air inside the sealing telescopic tube 52 pushes open the sealing plate 58 through extrusion, so that the air inside the sealing telescopic tube 52 quickly discharges through the through-hole groove 55. When the force of the compressed spring two 54 is to be released to drive the elongation of the sealing telescopic tube 52, the air inside the sealing telescopic tube 52 can only enter through the tiny through-hole 510, so that the sealing telescopic tube 52 continues to apply a compression force to the spring two 54 under the negative pressure of the internal air, making the spring two 54 can only slowly elongate, avoiding the rapid release of the absorbed impact force. When the disk block two 51 is impacted by the water hammer effect, it squeezes the sealing telescopic tube 52 and converts the impact force into the compression potential energy of the spring two 54. In this way, the instantaneous high impact force is partially absorbed and dispersed, preventing it from being directly transmitted to other components of the pipeline system and avoiding equipment damage caused by the instantaneous high pressure. The air inside the sealing telescopic tube 52 is discharged by pushing open the sealing plate 58 through extrusion, but when the spring two 54 tries to return to its original state, the air can only slowly enter through the tiny through-hole 510. This design increases the resistance to the release of the compressed energy of the spring, delays the elongation process of the sealing telescopic tube 52, makes the absorbed impact force not be quickly released, and avoids the generation of secondary shock waves. The water hammer effect usually accumulates pressure due to the repeated reflection of shock waves, resulting in greater system damage. This structure breaks the cumulative effect of the water hammer impact force through buffering and staged release, reducing the harm of the water hammer to the system from the source.

[0047] The hollow cylindrical block 86 is filled with non-Newtonian fluid, so that when the disk block three 83 is subjected to a small impact usually, the disk block three 83 drives the connecting rod member 85 and the cylindrical trigger block 87 to move relatively slowly;

[0048] When the impact force of the water hammer effect of the liquid comes, the liquid impacts the third disc block 83, causing the third disc block 83 to squeeze the fifth spring 82, playing a buffering role. At the same time, the third disc block 83 drives the connecting rod member 85, and the connecting rod member 85 drives the cylindrical trigger block 87 to be quickly pushed. When the cylindrical trigger block 87 quickly moves and impacts the full non-Newtonian fluid placed in the hollow cylindrical block 86, it can drive the hollow cylindrical block 86 to move. At this time, the hollow cylindrical block 86 drives the second disc block 51 to move to the right. The second disc block 51 drives one end of the second telescopic rod 61 to move to the right, and the second telescopic rod 61 drives the trapezoidal block 66 to move to the right. At this time, the positioning trapezoidal member 68 no longer limits the trapezoidal block 66, enabling the trapezoidal block 66 to rotate clockwise. At this time, the scroll spring 63 is released to drive the second telescopic rod 61 to rotate. The second telescopic rod 61 drives the third telescopic rod 71 to rotate, and the third telescopic rod 71 drives the cutting column 73 to rotate clockwise. The cutting column 73 drives the left cylindrical block 77 to rotate counterclockwise through the intermediate bevel gear 75. The left cylindrical block 77 drives the impeller 78 to rotate counterclockwise. When the impeller 78 rotates counterclockwise, it drives the liquid to move away from the second telescopic rod 61, counteracting the incoming water hammer, thereby further effectively reducing the impact force of the water hammer effect. Further avoiding the water hammer effect generated when the valve body 1 adaptively adjusts the flow rate.

[0049] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

Claims

1. A stop valve with adaptive flow ratio, characterized in that: include: Valve body (1); A liquid inlet pipe (2), the liquid inlet pipe (2) being fixedly connected to the left side of the valve body (1); A liquid outlet pipe (3), the liquid outlet pipe (3) being fixedly connected to the right side of the valve body (1); An adaptive flow ratio mechanism (4), wherein the adaptive flow ratio mechanism (4) is arranged on the liquid outlet pipe (3) and the valve body (1); An energy absorbing mechanism (5), the energy absorbing mechanism (5) being arranged on the inner wall of the liquid inlet pipe (2) and being used for alleviating and absorbing the water hammer effect; A power storage mechanism (6) for storing energy by power storage; The cutting mechanism (7) is used to cut and buffer the flow of liquid under normal circumstances, and to rotate in the opposite direction to alleviate pressure fluctuations and reduce impact when encountering water hammer; A buffer mechanism (8) for absorbing and mitigating the impact force of the fluid flow; The cutting mechanism (7) comprises a telescopic rod three (71), one end of the telescopic rod three (71) is fixedly connected to the outer wall of the telescopic rod two (61), the other end of the telescopic rod three (71) is fixedly connected to a right cylindrical block (72), the outer wall of the right cylindrical block (72) is fixedly connected to a cutting column (73), the outer wall of the right cylindrical block (72) is fixedly connected to a right gear ring (74), an inner wall of the liquid inlet pipe (2) is rotatably connected to an intermediate bevel gear (75), the intermediate bevel gear (75) meshes with the right gear ring (74), a left connecting shaft (76) is rotatably connected to the inner wall of the liquid inlet pipe (2), the outer wall of the left connecting shaft (76) is fixedly connected to a left cylindrical block (77), the outer wall of the left cylindrical block (77) is fixedly connected to an impeller (78), the outer wall of the left cylindrical block (77) is fixedly connected to a left gear ring (79), the outer wall of the left gear ring (79) meshes with the intermediate bevel gear (75); The buffer mechanism (8) comprises a fixed positioning member (81), the fixed positioning member (81) being fixedly connected to the inner wall of the liquid inlet pipe (2), the outer wall of the fixed positioning member (81) being fixedly connected to one end of a spring five (82), the other end of the spring five (82) being fixedly connected to a disc block three (83), the outer wall of the disc block three (83) being fixedly connected to one end of a telescopic rod four (84), the other end of the telescopic rod four (84) being fixedly connected to the outer wall of the fixed positioning member (81), the outer wall of the disc block three (83) being fixedly connected to one end of a connecting rod member (85), the other end of the connecting rod member (85) being fixedly connected to a cylindrical trigger block (87), and the inner wall of the liquid inlet pipe (2) being fixedly connected to a hollow cylindrical block (86).

2. The self-adaptive flow ratio stop valve according to claim 1, characterized in that: The adaptive flow ratio mechanism (4) comprises a spring 1 (41), one end of which is fixedly connected to the inner wall of the liquid outlet pipe (3), the other end of which is fixedly connected to a disc block 1 (42), the outer wall of which is fixedly connected to one end of a connecting transmission rod (43), the other end of which is fixedly connected to a blocking square disc (44), and the inner wall of the valve body (1) is fixedly connected to a hollow connecting block (45).

3. The self-adaptive flow ratio stop valve according to claim 2, characterized in that: The outer wall of the disc block (42) is connected to the inner wall piston of the liquid outlet pipe (3), the inner wall of the hollow connecting block (45) is connected to the piston of the blocking square disc (44), the outer wall of the connecting transmission rod (43) is slidably connected to the inner wall of the liquid outlet pipe (3), and the inner wall of the hollow connecting block (45) is slidably connected to the inner wall of the liquid outlet pipe (3).

4. The self-adaptive flow ratio stop valve according to claim 2, characterized in that: The energy absorbing mechanism (5) comprises a second disc block (51), a piston of the second disc block (51) being connected to the inner wall of the liquid inlet pipe (2), an outer wall of the second disc block (51) being fixedly connected to one end of a sealed telescopic tube (52), the other end of the sealed telescopic tube (52) being fixedly connected to a positioning block (53), an inner wall of the sealed telescopic tube (52) being fixedly connected to one end of a second spring (54), the other end of the second spring (54) being fixedly connected to the positioning block (53), A through hole groove (55) is formed on the inner wall of the positioning block (53); a connecting plate (56) is fixedly connected to the inner wall of the positioning block (53); one end of a spring three (57) is fixedly connected to the outer wall of the connecting plate (56); the other end of the spring three (57) is fixedly connected to a sealing plate (58); one end of a telescopic rod one (59) is fixedly connected to the outer wall of the sealing plate (58); the other end of the telescopic rod one (59) is fixedly connected to the outer wall of the connecting plate (56).

5. The self-adaptive flow ratio stop valve according to claim 4, characterized in that: The outer wall of the positioning block (53) is fixedly connected to the inner wall of the liquid inlet pipe (2), and a tiny through hole (510) is provided on the inner wall of the sealing plate (58).

6. The self-adaptive flow ratio stop valve according to claim 5, characterized in that: The force storage mechanism (6) comprises a second telescopic rod (61), one end of which is rotatably connected to the inner wall of the second disc block (51), the other end of which is fixedly connected to a central connecting shaft (64), the outer wall of the liquid inlet pipe (2) is fixedly connected to an annular member (62), the inner wall of the annular member (62) is fixedly connected to one end of a spiral spring (63), the other end of the spiral spring (63) is fixedly connected to the outer wall of the central connecting shaft (64), the outer wall of the second telescopic rod (61) is fixedly connected to one end of a fourth spring (65), the other end of which is driven to be fixedly connected to a trapezoidal block (66), the inner wall of the liquid inlet pipe (2) is fixedly connected to a fixing ring member (67), and the inner wall of the fixing ring member (67) is fixedly connected to a positioning trapezoidal member (68).

7. The self-adaptive flow ratio stop valve according to claim 6, characterized in that: The outer wall of the trapezoidal block (66) is slidably connected to the inner wall of the second telescopic rod (61), and a plurality of positioning trapezoidal members (68) are provided, and the positioning trapezoidal members (68) are arranged in a circular array.

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