Low noise high pressure cage regulating valve and regulating method thereof

Abstract

This invention discloses a low-noise, high-pressure cage-type regulating valve and its regulating method, specifically relating to the field of cage-type regulating valves. It includes a valve body mechanism, with a cage mechanism fixedly installed inside. A valve core mechanism is inserted into the inner cavity of the cage mechanism, and a dispersion mechanism is rotatably installed inside the inner cavity of the valve core mechanism. An regulating mechanism is located at the bottom of the valve body mechanism. The valve core mechanism includes a valve stem, with a first valve core fixedly installed at the bottom of the valve stem, and a second valve core fixedly installed at the bottom of the first valve core. The second valve core has several through-holes arranged in a through-type configuration inside, and a rotating shaft is rotatably installed at the bottom of the first valve core. This invention, by setting rotatable dispersion blocks and spiral blades inside the valve stem, allows the water flow entering the inner cavity of the valve body to change from horizontal to spiral flow, dispersing and circulating in all directions synchronously, thereby reducing the impact pressure of the water flow and thus reducing noise.

Description

Technical Field

[0001] This invention relates to the field of cage-type control valve technology, and more specifically, to a low-noise, high-pressure cage-type control valve and its control method. Background Technology

[0002] The cage-type control valve is a pressure-balanced control valve. Its internal components utilize a sleeve-guided pilot-operated valve core, primarily utilizing fluid pressure to achieve rapid valve core actuation with low operating force. Furthermore, it employs a single-seat seal, resulting in high accuracy of the flow characteristic curve, conforming to IEC534-1 standards. The control valve exhibits good dynamic stability, low noise, and cavitation prevention, making it suitable for controlling high-pressure differential fluids at various temperatures. Equipped with multi-spring diaphragm actuators or electric actuators, it boasts a compact structure and high output force.

[0003] Chinese invention patent CN201310589256.6 discloses a double-seat cage-type control valve with elastic C-ring, comprising a valve seat and a valve body. The valve seat is assembled in the middle of the valve body cavity, with a first graphite composite gasket placed between it and the valve body. A matching sleeve is installed on the valve seat. An elastic C-ring is embedded in the valve core assembly, and an expansion ring and a guide ring are sequentially embedded from the inside to the outside in the groove of the valve core assembly. The valve core assembly is connected to the valve stem and, together with the elastic C-ring, expansion ring, and guide ring, is installed into the sleeve, fitting against the sealing surface of the valve seat and the sealing surface of the sleeve to form a seal. A second graphite composite gasket is installed between the upper part of the valve body cavity and the upper cover, and a third graphite composite gasket is installed between the upper part of the sleeve and the upper cover. The upper flange face of the valve body is sequentially installed from bottom to top with an upper cover, a packing gasket, a graphite packing assembly, a packing gland, and a packing pressure plate. This invention has a simple and compact structure, strong versatility, and solves the shortcomings of low leakage level in cage-type double-seat control valves, achieving stable valve operation.

[0004] However, in practical use, traditional control valves can only achieve a single-stage pressure drop, with limited throttling effect. Furthermore, they cannot adjust the flow rate and reduce noise at different flow velocities, thus failing to meet actual needs. Therefore, this invention proposes a low-noise, high-pressure cage-type control valve to solve the above problems. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the embodiments of the present invention provide a low-noise high-pressure cage-type regulating valve and its regulating method, thereby solving the problems mentioned in the background art through the cage-type regulating valve.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a low-noise high-pressure cage-type regulating valve, comprising a valve body mechanism, wherein a cage mechanism is fixedly installed inside the valve body mechanism;

[0007] The inner cavity of the cage mechanism is fitted with a valve core mechanism, the inner cavity of the valve core mechanism is rotatably fitted with a dispersing mechanism, and the bottom of the valve body mechanism is provided with an adjustment mechanism.

[0008] The valve core mechanism includes a valve stem, a first valve core fixedly mounted at the bottom of the valve stem, a second valve core fixedly mounted at the bottom of the first valve core, a plurality of through holes arranged in a through-hole pattern inside the second valve core, a rotating shaft rotatably mounted at the bottom of the first valve core, a plurality of fan blades fixedly mounted on the outer wall of the rotating shaft, a first gear fixedly mounted on the outer wall of the rotating shaft, and both the valve stem and the first valve core are hollow. The dispersion mechanism includes a rotating rod rotatably mounted in the inner cavity of the valve stem and the first valve core, a motor fixedly connected to the top of the rotating rod for driving its rotation, a dispersion block fixedly connected to one end of the rotating rod extending beyond the bottom of the first valve core, a plurality of spiral blades fixedly mounted on the outer wall of the dispersion block, and a second gear fixedly mounted on the outer wall of the rotating rod, the second gear and the first gear being meshed with each other.

[0009] In a preferred embodiment, the dispersion block is located at the vertical centerline of the second valve core, and a plurality of spiral blades are arranged in a ring-shaped, equidistant manner on the outer wall of the dispersion block.

[0010] The number of rotating shafts is set to multiple, and the multiple rotating shafts are arranged in a ring-shaped, equidistant manner along the inner circumferential surface of the second valve core.

[0011] In a preferred embodiment, the valve body mechanism includes a valve body, a partition plate is fixedly installed inside the valve body, the cage mechanism includes a cage fixedly installed on the inner wall of the partition plate, the cage has a plurality of through holes, an inlet pipe and an outlet pipe are respectively connected to the outer wall of the valve body, and the first valve core and the second valve core are installed in the inner cavity of the cage and the valve body in a sliding state.

[0012] In a preferred embodiment, a sealing cover is fixedly installed on the top of the cage, the sealing cover is sleeved on the outer wall of the valve body, and a second fixing sleeve is fixedly installed on the bottom of the sealing cover. A first fixing sleeve is fixedly installed on the outer wall of the valve body, and a plurality of connecting rods are fixedly installed between the first fixing sleeve and the second fixing sleeve.

[0013] In a preferred embodiment, a limiting sleeve is fixedly installed on the inner wall of the valve body. A buffer groove is provided on the side of the limiting sleeve near the cage. A sealing ring is fixedly installed between the limiting sleeve and the cage. Sealing baffles are fixedly installed on both sides of the sealing ring and are inserted into the buffer groove.

[0014] In a preferred embodiment, a first pressure pad is fixedly installed on one side of the sealing ring, a first bracket is fixedly connected to one side of the first pressure pad, a second bracket is fixedly connected to the limiting sleeve inside the buffer groove, the first bracket is inserted into the inner cavity of the second bracket, and a first spring fixedly installed at one end of the first bracket and fixedly connected to the second bracket.

[0015] The outer wall of the second bracket is hinged with two first support rods, and a second pressure pad is hinged to one side of each of the two first support rods. The second pressure pad is slidably installed on the outer wall of the sealing ring, and the outer wall of each of the two first support rods is hinged with a first rod sleeve that is hinged to the first bracket.

[0016] In a preferred embodiment, the valve stem is inserted into the interior of the sealing cover in a sliding up-and-down state. Two second rod sleeves are fixedly installed at the bottom of the valve stem, and two second support rods are fixedly installed at the top of the sealing cover. The second support rods are inserted into the inner cavity of the second rod sleeves, and a second spring is fixedly installed at the top of the second support rods and fixedly connected to the second rod sleeves.

[0017] In a preferred embodiment, the adjusting mechanism includes a first baffle disposed on one side of the second valve core, a second baffle disposed on one side of the first baffle, and a plurality of third through holes arranged in a through-hole pattern are provided inside the first baffle and the bottom of the first baffle is fixedly connected to a connecting plate fixedly connected to the second valve core, and a rotating plate fixedly connected to the second baffle is installed on one side of the connecting plate as an anti-collision pad.

[0018] The first baffle has multiple first bending holes inside, and the second baffle has multiple second bending holes inside.

[0019] In a preferred embodiment, the inner wall of the rotating plate is provided with a plurality of limiting grooves, and a limiting strip is inserted into the inside of the limiting groove. A rotating seat is fixedly connected to the bottom of the limiting strip. The rotating seat is rotatably installed at the bottom of the valve body, and a plurality of scraping rods are fixedly installed on the outer wall of the rotating seat. The plurality of scraping rods are all attached to the inner wall of the valve body.

[0020] In a preferred embodiment, a method for regulating a low-noise, high-pressure cage-type regulating valve includes the following specific steps:

[0021] The first step is to fix the valve stem to the external actuator to drive it to move up and down, thereby causing the first valve core to drive the second valve core to move up and down inside the cage and valve body.

[0022] The second step is to press down and move the first valve core and the second valve core to the bottom of the partition plate. The second valve core blocks the water inlet pipe, so that the water entering the valve body cavity slowly flows into the interior of the second valve core through the second through hole.

[0023] Third, based on the water flow rate and velocity of the water flowing into the valve body cavity through the inlet pipe, when the second valve core is moved down, the limiting strip can be inserted into the limiting groove at the same time. By rotating the rotating seat, the second baffle can be rotated and misaligned with the first baffle, thereby making the third through hole opened inside the first and second baffles interconnected, or making the first bending hole and the second bending hole opened inside the first and second baffles interconnected.

[0024] Fourth, start the motor at the same time so that the rotating rod drives the dispersing block and the spiral blade to rotate. This allows the water flowing in from the inlet pipe to be dispersed and flow towards the inner wall of the second valve core through the rotation of the dispersing block and the spiral blade, thus preventing the water flow from impacting one side and damaging the second valve core.

[0025] Fifth, according to the third step, when the flow rate is normal or the water velocity is low, the third through holes opened in the first baffle and the second baffle are interconnected to allow the water to flow normally. However, when the water velocity is high and too turbulent and continuously impacts the second valve core, by connecting the first bending hole and the second bending hole, the flow path of the water flowing out through the first baffle and the second baffle and then through the first through hole to the outlet pipe can be greatly increased, thereby achieving step-by-step pressure reduction and noise reduction of the medium.

[0026] The technical effects and advantages of this invention are as follows:

[0027] 1. The present invention provides a rotatable dispersion block and a spiral blade inside the valve stem, which allows the water flow entering the valve body cavity to change from horizontal to spiral and disperse in all directions, thereby reducing the problem of uneven stress on the second through hole and deformation and damage caused by the water flow impacting only one point when flowing in a straight line.

[0028] 2. The present invention provides multiple rotatable shafts and fan blades inside the second valve core, so that when the water flow is dispersed to the inner wall of the second valve core, the multiple rotating fan blades can rotate and guide the water flow to disperse to the inner wall of the second valve core again, so as to achieve multi-directional synchronous flow, thereby reducing the impact pressure of the water flow and thus reducing noise.

[0029] 3. The present invention provides an expandable and adjustable second pressure pad at the connection between the cage and the valve body. When the first bracket moves into the inner cavity of the second bracket under force, the second pressure pad moves synchronously in the opposite direction on the outer wall of the sealing ring. This limits and presses the connection between the sealing baffle and the sealing ring, so that the sealing ring and the sealing baffle deform and can always press against the gap between the cage and the limiting sleeve, thereby preventing water leakage.

[0030] 4. This invention allows the second baffle and the first baffle to be misaligned when the rotating seat is rotated, thereby enabling the third through holes opened inside the first baffle and the second baffle to communicate with each other, or enabling the first bending hole and the second bending hole opened inside the first baffle and the second baffle to communicate with each other. This allows for rapid adjustment of the water flow between the first baffle and the second baffle according to the water flow at different flow rates, making it very convenient to operate and easy to use in practice. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0032] Figure 2 This is a partial structural cross-sectional view of the valve body mechanism, cage mechanism, and adjustment mechanism of the present invention.

[0033] Figure 3 This is a partial structural cross-sectional view of the valve core mechanism and the dispersion mechanism of the present invention.

[0034] Figure 4 For the present invention Figure 3 Enlarged view of the structure of part A.

[0035] Figure 5 This is a cross-sectional view of the structure of the present invention.

[0036] Figure 6 For the present invention Figure 5 Enlarged view of the structure of part B.

[0037] Figure 7 For the present invention Figure 5 Enlarged view of the C-section structure.

[0038] Figure 8 This is a side sectional view of the structure of the present invention.

[0039] Figure 9 For the present invention Figure 8 Enlarged view of the structure of part D.

[0040] Figure 10 For the present invention Figure 8 Enlarged view of the E-section structure.

[0041] The attached figures are labeled as follows: 1. Valve body mechanism; 101. Valve body; 102. Divider plate; 103. Inlet pipe; 104. Outlet pipe; 105. Sealing cover; 106. First fixing sleeve; 107. Second fixing sleeve; 108. Connecting rod; 2. Cage mechanism; 21. Cage; 22. First through hole; 23. Limiting sleeve plate; 24. Buffer groove; 25. Sealing ring; 26. Sealing folding plate; 27. First pressure pad; 28. First bracket; 29. ​​Second bracket; 210. First spring; 211. First support rod; 212. Second pressure pad; 213. First rod sleeve; 3. Valve core mechanism; 31. 32 Valve stem, 33 First valve core, 34 Second valve core, 35 Second through hole, 36 Rotating shaft, 37 Fan blade, 38 First gear, 39 Second support rod, 30 Second rod sleeve, 310 Second spring, 4 Dispersion mechanism, 41 Rotating rod, 42 Motor, 43 Dispersion block, 44 Spiral blade, 45 Second gear, 5 Adjustment mechanism, 51 First baffle, 52 Second baffle, 53 Third through hole, 54 Connecting plate, 55 Rotating plate, 56 First bending hole, 57 Second bending hole, 58 Limiting groove, 59 Limiting strip, 510 Rotary seat, 511 Scraper rod. Implementation

[0042] 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. Example

[0043] Refer to the instruction manual appendix Figure 1-10 An embodiment of the present invention provides a low-noise, high-pressure cage-type regulating valve, such as... Figure 1 As shown, it includes a valve body mechanism 1, and a cage mechanism 2 is fixedly installed inside the valve body mechanism 1.

[0044] A valve core mechanism 3 is inserted into the inner cavity of the cage mechanism 2, and a dispersion mechanism 4 is rotatably installed in the inner cavity of the valve core mechanism 3. An adjustment mechanism 5 is provided at the bottom of the valve body mechanism 1.

[0045] Reference Figure 3 As shown, the valve core mechanism 3 includes a valve stem 31, a first valve core 32 fixedly mounted on the bottom of the valve stem 31, and a second valve core 33 fixedly mounted on the bottom of the first valve core 32. The second valve core 33 has several through holes 34 arranged in a through-hole configuration inside. (Refer to...) Figure 7 As shown, a rotating shaft 35 is rotatably mounted on the bottom of the first valve core 32. Multiple fan blades 36 are fixedly mounted on the outer wall of the rotating shaft 35, and a first gear 37 is fixedly mounted on the outer wall of the rotating shaft 35. Figure 8As shown, the valve stem 31 and the first valve core 32 are both hollow. The dispersing mechanism 4 includes a rotating rod 41 that is rotatably installed in the inner cavity of the valve stem 31 and the first valve core 32. A motor 42 for driving the rotating rod 41 to rotate is fixedly connected to the top of the rotating rod 41. A dispersing block 43 is fixedly connected to one end of the rotating rod 41 that extends out of the bottom of the first valve core 32. Multiple spiral blades 44 are fixedly installed on the outer wall of the dispersing block 43. A second gear 45 is fixedly installed on the outer wall of the rotating rod 41. The second gear 45 and the first gear 37 are meshed with each other.

[0046] As a further expansion of this plan, refer to Figure 4 As shown, the dispersion block 43 is positioned at the vertical centerline of the second valve core 33. Multiple spiral blades 44 are arranged in a ring-like, equidistant manner on the outer wall of the dispersion block 43. This arrangement aims to ensure that the water flowing into the valve body 101's inner cavity, initially horizontally, transforms into a spiral flow as the water is driven by the rotating dispersion block 43 to synchronously rotate the multiple spiral blades 44. This disperses the water flow towards the outer periphery of the dispersion block 43, reducing the problem of uneven stress and deformation damage to the second through-hole 34 caused by the water flowing in a straight line impacting only one point. Simultaneously, multiple rotating shafts 35 are arranged in a ring-like, equidistant manner along the inner circumference of the second valve core 33. The purpose of this arrangement is to enable the second gear 45 to rotate synchronously with the dispersion block 43, thereby driving multiple rotating shafts 35 to rotate. This causes the multiple fan blades 36 on the outer walls of the multiple rotating shafts 35 to rotate synchronously on the inner wall of the second valve core 33. On the one hand, the multiple fan blades 36 can remove impurities adhering to the second through hole 34 during contact with the inner wall of the second valve core 33. On the other hand, the multiple rotating fan blades 36, combined with the arrangement of the second valve core 33 and the second through hole 34, can further guide and disperse the water flow onto the inner wall of the second valve core 33 by rotating the water flow, achieving multi-directional synchronous flow. This reduces the impact pressure of the water flow and thus reduces noise.

[0047] Furthermore, refer to Figure 2As shown, the valve body mechanism 1 includes a valve body 101, with a partition plate 102 fixedly installed inside the valve body 101. The cage mechanism 2 includes a cage 21 fixedly installed on the inner wall of the partition plate 102. The cage 21 has multiple through holes 22 arranged in a through-hole configuration inside. An inlet pipe 103 and an outlet pipe 104 are respectively connected to the outer wall of the valve body 101. A first valve core 32 and a second valve core 33 are installed in a sliding manner within the cage 21 and the inner cavity of the valve body 101. In actual use, water flows into the inner cavity of the valve body 101 through the inlet pipe 103, and then into the cage 21 through the partition plate 102. The water flows out through the first through hole 22 to the top of the valve body 101, which is separated by the partition plate 102, and finally is discharged through the outlet pipe 104. The top of the cage 21 is fixedly installed with a sealing cover 105, which is sleeved on the outer wall of the valve body 101. The bottom of the sealing cover 105 is fixedly installed with a second fixing sleeve 107. The outer wall of the valve body 101 is fixedly installed with a first fixing sleeve 106. Multiple connecting rods 108 are fixedly installed between the first fixing sleeve 106 and the second fixing sleeve 107. The purpose of this arrangement is to make the cage 21 more stable when it is fixed in the inner cavity of the valve body 101.

[0048] Furthermore, to avoid water leakage caused by gaps forming between the cage 21 and the valve body 101 due to thermal expansion and contraction during use, refer to... Figure 6 As shown, a limiting sleeve 23 is fixedly installed on the inner wall of the valve body 101. A buffer groove 24 is provided on the side of the limiting sleeve 23 near the cage 21. A sealing ring 25 is fixedly installed between the limiting sleeve 23 and the cage 21. Sealing baffles 26 are fixedly installed on both sides of the sealing ring 25. The sealing baffles 26 are inserted into the interior of the buffer groove 24. The purpose of this arrangement is to seal the gap between the cage 21 and the limiting sleeve 23 with the sealing ring 25 and the sealing baffles 26. When thermal expansion occurs between the sealing ring 25 and the sealing baffles 26, there is enough space in the inner cavity of the buffer groove 24 for them to expand, thereby preventing the expanding sealing ring 25 and sealing baffles 26 from being broken and damaged by long-term pressure.

[0049] Meanwhile, a first pressure pad 27 is fixedly installed on one side of the sealing ring 25, and a first bracket 28 is fixedly connected to one side of the first pressure pad 27. The buffer groove 24 is provided with a second bracket 29 fixedly connected to the limiting sleeve 23. The first bracket 28 is inserted into the inner cavity of the second bracket 29, and a first spring 210 fixedly installed at one end of the first bracket 28 and fixedly connected to the second bracket 29. The purpose of this arrangement is to limit and support the horizontal centerline of the sealing ring 25. Two first support rods 211 are hinged to the outer wall of the second bracket 29, and a second pressure pad 21 is hinged to one side of each of the two first support rods 211. 2. The second pressure pad 212 is slidably installed on the outer wall of the sealing ring 25, and the outer walls of the two first support rods 211 are hinged with first rod sleeves 213 that are hinged to the first bracket 28. The purpose of this arrangement is that when the first bracket 28 is subjected to force and moves into the inner cavity of the second bracket 29, the second pressure pad 212 can move synchronously in the opposite direction on the outer wall of the sealing ring 25, thereby limiting and pressing the connection between the sealing baffle 26 and the sealing ring 25, so that the sealing ring 25 and the sealing baffle 26 are deformed and can always press against the gap between the cage 21 and the limiting sleeve 23, thereby preventing water leakage.

[0050] Furthermore, in combination Figure 8-9 As shown, the valve stem 31 is inserted into the interior of the sealing cover 105 in a sliding up-and-down state. Two second rod sleeves 39 are fixedly installed at the bottom of the valve stem 31, and two second support rods 38 are fixedly installed at the top of the sealing cover 105. The second support rods 38 are inserted into the inner cavity of the second rod sleeves 39, and a second spring 310 fixedly connected to the second rod sleeves 39 is fixedly installed at the top of the second support rods 38. The purpose of this arrangement is to make the downward and upward movement of the valve stem 31 more stable when the valve stem 31 is pressed down by the externally connected actuator.

[0051] As a further extension of this scheme, in order to adapt to flow rate adjustment under different water pressures, refer to Figure 4 and Figure 7As shown, the regulating mechanism 5 includes a first baffle 51 disposed on one side of the second valve core 33, and a second baffle 52 disposed on one side of the first baffle 51. Both the first baffle 51 and the second baffle 52 have multiple through holes 53 arranged in a through-hole pattern. The bottom of the first baffle 51 is fixedly connected to a connecting plate 54 that is fixedly connected to the second valve core 33. A rotating plate 55 that is fixedly connected to the second baffle 52 is installed on one side of the connecting plate 54 as an anti-collision pad. Under normal flow rate or when the water velocity is low, the third through holes 53 in the first baffle 51 and the second baffle 52 are interconnected to allow water to flow normally. The contact between the first baffle 51, the second baffle 52 and the rotating fan blades 36 helps to prevent the medium from directly scouring the second valve core 33.

[0052] Furthermore, refer to Figure 10 As shown, the first baffle 51 has multiple first bending holes 56 inside, and the second baffle 52 has multiple second bending holes 57 inside. When the water flow velocity is high and too turbulent, continuously impacting the second valve core 33, the interconnection of the first bending holes 56 and the second bending holes 57 greatly increases the flow path of the water as it flows through the first baffle 51, the second baffle 52, and then through the first through hole 22 to the outlet pipe 104. This achieves step-by-step pressure reduction and noise reduction of the medium. The second baffle 52 has multiple sealing blocks on the side closest to the first baffle 51. When the first baffle 51 and the second baffle 52 are connected... When the third through holes 53 are interconnected, the sealing block can block the corresponding first bending hole 56. When the first bending hole 56 and the second bending hole 57 are interconnected, the sealing block can block the third through hole 53. Furthermore, to facilitate the adjustment of the second baffle 52 to allow the third through holes 53 inside the first baffle 51 and the second baffle 52 to be interconnected, or to allow the first bending holes 56 and the second bending holes 57 inside the first baffle 51 and the second baffle 52 to be interconnected, multiple limiting grooves 58 are provided on the inner wall of the rotating plate 55. Limiting strips 59 are inserted into the limiting grooves 58, combined with... Figure 8As shown, a rotating seat 510 is fixedly connected to the bottom of the limiting strip 59. The rotating seat 510 is rotatably mounted on the bottom of the valve body 101, and multiple scraper rods 511 are fixedly mounted on the outer wall of the rotating seat 510. The multiple scraper rods 511 are all attached to the inner wall of the valve body 101. Therefore, in actual use, when the valve stem 31 is pressed as a whole to move the first valve core 32 and the second valve core 33 to the bottom of the partition plate 102, the limiting strip 59 can be inserted into the inner cavity of the limiting groove 58. Then, when the rotating seat 510 is rotated, the limiting strip 59 can be inserted into the inner cavity of the limiting groove 58. When the second baffle 52 and the first baffle 51 are misaligned, the third through hole 53 inside the first baffle 51 and the second baffle 52 can be connected to each other, or the first bending hole 56 and the second bending hole 57 inside the first baffle 51 and the second baffle 52 can be connected to each other. Thus, the water flow between the first baffle 51 and the second baffle 52 can be quickly adjusted according to the water flow at different flow rates. It is very convenient to operate and easy to use in practice. Example

[0053] A method for regulating a low-noise, high-pressure cage-type regulating valve, the specific operating steps of which are as follows:

[0054] The first step is to fix the valve stem 31 to the external actuator to drive it to move up and down, thereby causing the first valve core 32 to drive the second valve core 33 to move up and down inside the cage 21 and the valve body 101.

[0055] The second step is that when the first valve core 32 and the second valve core 33 are pressed down and moved to the bottom of the partition plate 102, the second valve core 33 blocks the water inlet pipe 103, so that the water flowing into the inner cavity of the valve body 101 slowly flows into the interior of the second valve core 33 through the second through hole 34.

[0056] Thirdly, based on the water flow rate and velocity flowing into the inner cavity of the valve body 101 through the water inlet pipe 103, when the second valve core 33 is moved down, the limiting strip 59 can be inserted into the limiting groove 58 at the same time. By rotating the rotating seat 510, the second baffle 52 can be rotated and misaligned with the first baffle 51. This allows the third through hole 53 inside the first baffle 51 and the second baffle 52 to communicate with each other, or allows the first bending hole 56 and the second bending hole 57 inside the first baffle 51 and the second baffle 52 to communicate with each other.

[0057] Fourth step, start the motor 42 at the same time so that the rotating rod 41 drives the dispersing block 43 and the spiral blade 44 to rotate. This allows the water flowing in from the water inlet pipe 103 to be dispersed and flow towards the inner wall of the second valve core 33 through the rotation of the dispersing block 43 and the spiral blade 44, so as to avoid the water flow from impacting one side and damaging the second valve core 33.

[0058] Fifth, according to the third step, when the flow rate is normal or the water speed is low, the third through hole 53 opened in the first baffle 51 and the second baffle 52 are interconnected to allow the water to flow normally. However, when the water flow speed is high and too turbulent and continuously impacts the second valve core 33, by connecting the first bending hole 56 and the second bending hole 57, the flow of water through the first baffle 51 and the second baffle 52 and then through the first through hole 22 to the outlet pipe 104 can be greatly increased, thereby achieving step-by-step pressure reduction and noise reduction of the medium.

[0059] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0060] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0061] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A low-noise high-pressure cage-type regulating valve, comprising a valve body mechanism (1), wherein a cage mechanism (2) is fixedly installed inside the valve body mechanism (1). characterized in that The inner cavity of the cage mechanism (2) is connected to a valve core mechanism (3), and the inner cavity of the valve core mechanism (3) is rotatably equipped with a dispersing mechanism (4). The bottom of the valve body mechanism (1) is provided with an adjusting mechanism (5). The valve core mechanism (3) includes a valve stem (31), a first valve core (32) is fixedly installed at the bottom of the valve stem (31), a second valve core (33) is fixedly installed at the bottom of the first valve core (32), the second valve core (33) has several through holes (34) arranged in a through-hole pattern inside, a rotating shaft (35) is rotatably installed at the bottom of the first valve core (32), a plurality of fan blades (36) are fixedly installed on the outer wall of the rotating shaft (35), a first gear (37) is fixedly installed on the outer wall of the rotating shaft (35), and the valve stem (31) and the first valve core (32) are both inside The dispersion mechanism (4) is hollow and includes a rotating rod (41) that is rotatably installed in the inner cavity of the valve stem (31) and the first valve core (32). The top of the rotating rod (41) is fixedly connected to a motor (42) for driving it to rotate. One end of the rotating rod (41) extending out of the bottom of the first valve core (32) is fixedly connected to a dispersion block (43). Multiple spiral blades (44) are fixedly installed on the outer wall of the dispersion block (43). A second gear (45) is fixedly installed on the outer wall of the rotating rod (41). The second gear (45) and the first gear (37) are meshed with each other. The valve body mechanism (1) includes a valve body (101), and a partition plate (102) is fixedly installed inside the valve body (101). The cage mechanism (2) includes a cage (21) fixedly installed on the inner wall of the partition plate (102). The cage (21) has multiple through holes (22) arranged in a through manner. The outer wall of the valve body (101) is respectively connected to an inlet pipe (103) and an outlet pipe (104). The first valve core (32) and the second valve core (33) are installed in the inner cavity of the cage (21) and the valve body (101) in a sliding state. The adjustment mechanism (5) includes a first baffle (51) disposed on one side of the second valve core (33), a second baffle (52) disposed on one side of the first baffle (51), and multiple third through holes (53) arranged in a through manner are provided inside the first baffle (51) and the second baffle (52). A connecting plate (54) fixedly connected to the second valve core (33) is fixedly connected to the bottom of the first baffle (51), and a rotating plate (55) fixedly connected to the second baffle (52) is installed on one side of the connecting plate (54) as an anti-collision pad. The first baffle (51) has multiple first bending holes (56) inside, and the second baffle (52) has multiple second bending holes (57) inside.

2. A low noise high pressure cage regulator valve as claimed in claim 1, wherein: The dispersion block (43) is located at the vertical center line of the second valve core (33), and the plurality of spiral blades (44) are arranged in a ring-shaped and equidistant manner on the outer wall of the dispersion block (43). The number of the rotating shafts (35) is set to be multiple, and the multiple rotating shafts (35) are arranged in a ring-shaped and equidistant manner along the inner circumferential surface of the second valve core (33).

3. A low noise high pressure cage regulator valve as claimed in claim 2, wherein: A sealing cover (105) is fixedly installed on the top of the cage (21). The sealing cover (105) is sleeved on the outer wall of the valve body (101). A second fixing sleeve (107) is fixedly installed at the bottom of the sealing cover (105). A first fixing sleeve (106) is fixedly installed on the outer wall of the valve body (101). A plurality of connecting rods (108) are fixedly installed between the first fixing sleeve (106) and the second fixing sleeve (107).

4. The low-noise high-pressure cage-type regulating valve according to claim 3, characterized in that: A limiting sleeve plate (23) is fixedly installed on the inner wall of the valve body (101). A buffer groove (24) is provided on the side of the limiting sleeve plate (23) near the cage (21). A sealing ring (25) is fixedly installed between the limiting sleeve plate (23) and the cage (21). A sealing baffle (26) is fixedly installed on both sides of the sealing ring (25). The sealing baffle (26) is inserted into the buffer groove (24).

5. A low-noise high-pressure cage-type regulating valve according to claim 4, characterized in that: A first pressure pad (27) is fixedly installed on one side of the sealing ring (25), and a first bracket (28) is fixedly connected to one side of the first pressure pad (27). The buffer groove (24) is provided with a second bracket (29) fixedly connected to the limiting sleeve (23). The first bracket (28) is inserted into the inner cavity of the second bracket (29), and a first spring (210) fixedly connected to the second bracket (29) is fixedly installed at one end of the first bracket (28). The outer wall of the second bracket (29) is hinged with two first support rods (211), and a second pressure pad (212) is hinged to one side of each of the two first support rods (211). The second pressure pad (212) is slidably installed on the outer wall of the sealing ring (25), and the outer wall of each of the two first support rods (211) is hinged with a first rod sleeve (213) that is hinged to the first bracket (28).

6. A low-noise high-pressure cage-type regulating valve according to claim 5, characterized in that: The valve stem (31) is inserted into the inside of the sealing cover (105) in a sliding state. Two second rod sleeves (39) are fixedly installed at the bottom of the valve stem (31), and two second support rods (38) are fixedly installed at the top of the sealing cover (105). The second support rods (38) are inserted into the inner cavity of the second rod sleeves (39), and a second spring (310) is fixedly installed at the top of the second support rods (38) and is fixedly connected to the second rod sleeves (39).

7. A low-noise high-pressure cage-type regulating valve according to claim 6, characterized in that: The inner wall of the rotating plate (55) is provided with multiple limiting grooves (58), and a limiting strip (59) is inserted into the inside of the limiting groove (58). A rotating seat (510) is fixedly connected to the bottom of the limiting strip (59). The rotating seat (510) is rotatably installed at the bottom of the valve body (101), and multiple scrapers (511) are fixedly installed on the outer wall of the rotating seat (510). The multiple scrapers (511) are all attached to the inner wall of the valve body (101).

8. The regulating method for a low-noise high-pressure cage-type regulating valve according to claim 7, characterized in that, The specific operating steps are as follows: First, the valve stem (31) is fixedly connected to the external actuator to drive it to move up and down, thereby causing the first valve core (32) to drive the second valve core (33) to move up and down inside the cage (21) and the valve body (101); In the second step, when the first valve core (32) and the second valve core (33) are pressed down and moved to the bottom of the partition plate (102), the second valve core (33) blocks the water inlet pipe (103), so that the water flowing into the inner cavity of the valve body (101) slowly flows into the interior of the second valve core (33) through the second through hole (34); Third step, based on the water flow rate and velocity of the water flowing into the inner cavity of the valve body (101) through the water inlet pipe (103), when the second valve core (33) is moved down, the limiting strip (59) can be inserted into the limiting groove (58) at the same time. By rotating the rotating seat (510), the second baffle (52) can be rotated and misaligned with the first baffle (51), thereby making the third through hole (53) opened inside the first baffle (51) and the second baffle (52) interconnected, or making the first bending hole (56) and the second bending hole (57) opened inside the first baffle (51) and the second baffle (52) interconnected. Fourth step, start the motor (42) at the same time so that the rotating rod (41) drives the dispersing block (43) and the spiral blade (44) to rotate. This allows the water flowing in from the inlet pipe (103) to be dispersed and flow through the rotation of the dispersing block (43) and the spiral blade (44) to the inner wall of the second valve core (33), thus avoiding the water flow from impacting one side and damaging the second valve core (33). Fifth step, according to the third step, when the normal flow rate or the water speed is small, the third through hole (53) opened in the first baffle (51) and the second baffle (52) can be connected to each other to allow the water to flow normally. When the water flow speed is large and too turbulent and continuously impacts the second valve core (33), by connecting the first bending hole (56) and the second bending hole (57), the flow of water through the first baffle (51) and the second baffle (52) and then through the first through hole (22) to the outlet pipe (104) can be greatly increased, thereby realizing the gradual pressure reduction and noise reduction of the medium.

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