Low-noise ball valve rotational flow pore plate dislocation angle adjusting device

Abstract

The utility model discloses a low-noise ball valve rotational flow pore plate dislocation angle adjusting device. The low-noise ball valve rotational flow pore plate dislocation angle adjusting device comprises a fluid channel, an axial limiting mechanism arranged in the fluid channel and a valve element assembly fixed to the fluid channel through the axial limiting mechanism. The valve element assembly comprises a throttling disc and a flow guide disc which are arranged in parallel at intervals, a plurality of flow guide holes are formed in the throttling disc, flow guide grooves are formed in the flow guide disc, and the adjacent flow guide holes and flow guide grooves are not located on the same axis. According to the adjusting ball valve, the multiple sets of throttling discs and flow guide discs are arranged in the fluid channel at intervals, the fluid paths formed by the adjacent flow guide holes and flow guide grooves form the liquid spiral cavities, fluid media flow along the spiral paths when passing through the valve element assembly, the speed and direction of the fluid are gradually changed, and pressure drop is gradually reduced; multi-stage throttling noise reduction is achieved, different flow resistance values can be achieved through different combinations of the valve element assemblies, and adjustable flow resistance on the premise of the same specification and model is achieved.

Description

TECHNICAL FIELD

[0001] The embodiment of the utility model belongs to the technical field of fluid control valve, more particularly, relate to a low noise ball valve whirl hole plate misplacement angle adjusting device. BACKGROUND

[0002] In the fluid control system, ball valve is widely used because of its simple structure, convenient operation, good sealing performance and other advantages. However, under certain working conditions, such as high pressure, high flow rate or fluid environment containing particulate impurities, the traditional ball valve may face challenges in flow regulation, such as inaccurate flow regulation, large fluid resistance fluctuation, accelerated wear of valve body and sealing surface, noise and vibration during operation, poor reliability, and inconvenient disassembly and maintenance of the regulating assembly.

[0003] Therefore, it is particularly important to develop a ball valve internal flow resistance regulating device that can effectively regulate fluid resistance, improve flow control accuracy and be easily disassembled. SUMMARY

[0004] To solve the problems of the prior art ball valve, such as inaccurate flow regulation, fluid resistance fluctuation, noise, and inconvenient installation, disassembly and maintenance, the utility model provides a low noise ball valve whirl hole plate misplacement angle adjusting device.

[0005] To achieve the above-mentioned purpose, the utility model provides a low noise ball valve whirl hole plate misplacement angle adjusting device, which comprises a fluid passage arranged in the valve ball, and an axial limiting mechanism is arranged in the fluid passage; a valve core assembly is fixed in the body passage through the axial limiting mechanism, the valve core assembly comprises throttle disc and flow guide disc arranged in parallel and spaced apart, a plurality of flow guide holes are formed on the throttle disc, a flow guide groove is arranged on the flow guide disc, and adjacent flow guide holes and flow guide grooves are not on the same axis.

[0006] Further, an inner tooth groove is arranged on the outer periphery of the fluid passage along the axial direction, the inner tooth groove is embedded with the valve core assembly, and the relative embedding angle of the throttle disc and the flow guide disc is adjusted, so that the relative angle of adjacent throttle holes and flow guide grooves changes, the fluid path changes, and thus the speed and direction of the fluid gradually change to achieve the change of the flow resistance value.

[0007] Further, a first outer tooth part is arranged on the outer periphery of the throttle disc, and a second outer tooth part is arranged on the outer periphery of the flow guide disc; the tooth specifications and number of the first outer tooth part and the second outer tooth part are matched with the inner tooth groove, and the first outer tooth part and the second outer tooth part are embedded in the inner tooth groove.

[0008] Further, the throttle disc further comprises a first disc body and a throttle hole; the diameter of the first disc body is matched with the diameter of the fluid passage; the throttle hole is arranged on the first disc body, and the number and size of the throttle hole are adjusted according to the demand of the flow resistance value.

[0009] Further, the guide groove comprises a guide hole and a guide plate, the guide hole is arranged through the guide disc, the central axis of the guide hole is not coincided with the central axis of the throttling hole, and liquid can be discharged through the guide hole; the guide plate is arranged obliquely outside the guide hole, and the guide hole and the guide plate form a guide groove structure to guide the discharged liquid.

[0010] Further, the axial limiting mechanism comprises a plurality of groups of annular positioning grooves which are arranged at intervals on the outer periphery of the fluid channel, and snap rings are arranged in the positioning grooves.

[0011] Further, the bottom of the snap ring is provided with a reset spring, and the other end of the reset spring is fixedly connected with the bottom of the positioning groove.

[0012] Further, the axial limiting mechanism further comprises a limiting rod which is parallel to the fluid channel and penetrates through the plurality of positioning grooves to limit the bottom of the snap ring, so that the snap ring is prevented from retracting into the positioning groove.

[0013] Overall, compared with the prior art, the above technical scheme conceived by the utility model can achieve the following beneficial effects:

[0014] (1) The adjusting device of the utility model, by setting a plurality of groups of throttling discs and guide discs arranged at intervals in the fluid channel of the valve ball, the pressure drop of the fluid medium is gradually reduced when passing through the valve core assembly, and the pressure drop of each stage is insufficient to produce cavitation, thereby realizing multi-stage throttling noise reduction, and different flow resistance values can be realized through different combinations of the throttling discs and the guide discs under the premise of the same specification and model, and the flow resistance can be adjusted; meanwhile, the throttling discs and the guide discs can be replaced modularly, thereby reducing the maintenance difficulty.

[0015] (2) The adjusting device of the utility model, adjacent throttling holes and guide grooves are not on the same axis, so that a liquid spiral cavity is formed between adjacent throttling discs and guide discs, thereby dissipating fluid energy; by controlling the fitting angles of the flow discs and the guide discs in the fluid channel 32 and the distance therebetween, the fluid flow and the path are changed correspondingly, better throttling and flow resistance control are realized, and the blank in the prior art that the valve flow resistance value cannot be changed is filled.

[0016] (3) The adjusting device of the utility model can adjust the relative angle and other parameters of the throttling hole and the guide groove, can conveniently and quickly meet the needs of different valve resistance values of users, and can provide a plurality of specifications and sizes for users to select.

[0017] (4) the adjusting device of the utility model, the spiral cavity between two adjacent throttle disc and guide disc changes with the change of dislocation angle, increases the throttling area under the premise of ensuring the same flow resistance value, reduces the flow rate of medium, under the working condition of high pressure, high flow rate or containing particle medium, the design of guide groove can disperse the impact force of fluid on the ball and valve seat, reduce the wear, improve the durability of ball valve, greatly prolong the regulating life of valve. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 it is structure schematic drawing of low noise ball valve rotating flow hole plate dislocation angle adjusting device in the utility model embodiment;

[0019] Figure 2 it is structure schematic drawing of throttle disc in the utility model embodiment;

[0020] Figure 3 it is structure schematic drawing of guide disc in the utility model embodiment;

[0021] Figure 4 it is structure schematic drawing of fluid passage in the utility model embodiment;

[0022] Figure 5 it is operation schematic drawing of adjusting device for ball valve in the utility model embodiment.

[0023] In all drawings, same reference signs represent same technical features, specifically: 1-valve body, 11-first valve port, 12-second valve port, 2-adjusting valve rod, 3-valve ball, 31-ball, 32-fluid passage, 33-connecting groove, 34-positioning groove, 35-inner tooth groove, 36-clamp ring, 4-valve seat assembly, 5-valve core assembly, 51-throttle disc, 511-first disc, 512-throttle hole, 513-first outer tooth part, 52-guide disc, 521-second disc, 522-guide hole, 523-guide plate, 524-second outer tooth part. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the following will be further detailed by combining with the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0025] The utility model provides a low noise ball valve whirl hole plate dislocation angle adjusting device, including fluid passage 32, axial limiting mechanism in fluid passage 32 is established, and the valve core subassembly 5 fixed in body passage 32 is established through axial limiting mechanism. The valve core subassembly 5 includes throttling disc 51 and guide disc 52 of parallel and interval arrangement, a plurality of guide holes 522 are opened on throttling disc 51, guide groove is equipped on guide disc 52, and adjacent guide hole 522 and guide groove are not on same axis. The adjusting ball valve of the application, through interval arrangement of multiple sets of throttling disc 51 and guide disc 52 in fluid passage 32, adjacent guide hole 522 and the fluid path formed by guide groove constitute liquid spiral cavity, fluid medium flows along spiral path when passing through valve core subassembly 5, and the velocity and direction of fluid gradually change, and pressure drop is gradually reduced, realizes multistage throttling noise reduction, and different combination of the valve core subassembly 5, namely adjusting the interval between throttling disc 51 and guide disc 52, or the relative angle between adjacent guide hole 522 and guide groove, realizes different flow resistance value, realizes flow resistance adjustable under the premise of same specification and model.

[0026] As Figure 1 、 4 The valve ball 3 is rotationally limited in the valve body 1, which includes a ball body 31, a fluid passage 32 and a connecting groove 33. The ball body 31 is adapted to the spherical cavity of the valve body 1 and can rotate in the horizontal direction of the valve body 1 to control the on-off of the fluid. The fluid passage 32 is a cylindrical cavity, which is arranged on the ball body 31 along the horizontal direction, and the two ends thereof are respectively connected with the first valve port 11 and the second valve port 12 to provide a fluid flow passage. The connecting groove 33 is arranged on the top of the ball body 31 and is embeddedly connected with the adjusting valve rod 2. By twisting the adjusting valve rod 2, the ball body 31 is rotated, the two ends of the fluid passage 32 are staggered or connected with the first valve port 11 and the second valve port 12, and the on-off operation of the valve is performed.

[0027] The axial limiting mechanism comprises a plurality of groups of circumferential positioning grooves 34 arranged at intervals on the outer periphery of the fluid passage 32, and a snap ring 36 is arranged in the positioning groove 34. By arranging the snap ring 36, the axial positioning of the valve core assembly 5 is achieved. Preferably, in order to achieve quick installation and disassembly of the valve core assembly 5, a return spring is arranged at the bottom of the snap ring 36, and the other end of the return spring is fixedly connected with the groove bottom of the positioning groove 34. By pushing the valve core assembly 5 to displace along the fluid passage 32, the snap ring 36 is pushed into the positioning groove 34, and after reaching the installation point, the return spring pushes the snap ring 36 out of the positioning groove 34 to axially limit the two sides of the valve core assembly 5. Further, in order to prevent the high-pressure fluid in the fluid passage 32 from pushing the valve core assembly 5 to displace and compress the snap ring 36 to descend, thereby causing the snap ring 36 to lose the limiting effect, a limiting rod is further arranged on the ball 31, which is parallel to the fluid passage 32 and penetrates through a plurality of positioning grooves 34 to limit the bottom of the snap ring 36, preventing the snap ring 36 from retracting into the positioning groove 34. After completing the positioning and installation of the valve core assembly 5, the return spring pushes the snap ring 36 out of the positioning groove 34 to axially limit the two sides of the valve core assembly 5, and the limiting rod is inserted into the ball 31 and screwed through a plurality of positioning grooves 34 to limit and lock the bottom of the snap ring 36, which can effectively prevent the high-pressure fluid in the fluid passage 32 from pushing the valve core assembly 5 to displace and compress the snap ring 36 to descend. When disassembling the valve core assembly 5, the limiting rod can be unscrewed and pulled out to release the locking and limiting of the snap ring 36, and the valve core assembly 5 can be quickly taken out of the fluid passage 32 by pulling and compressing the snap ring 36 to descend, thereby achieving quick disassembly.

[0028] Further, in order to adjust the installation angle of the valve core assembly 5 and thereby change the control flow resistance value, an inner tooth groove 35 is arranged on the outer periphery of the fluid passage 32 along the axial direction. By embedding the inner tooth groove 35 with the valve core assembly 5 and adjusting the relative embedding angle of the throttle disc 51 and the flow guide disc 52, the relative angle of the adjacent throttle holes 512 and the flow guide grooves changes, the fluid path changes, and thereby the speed and direction of the fluid gradually change, so as to change the control flow resistance value.

[0029] As shown in Figures 2-3 The valve core assembly 5 is fixedly arranged in the fluid passage 32 and comprises a plurality of groups of throttle discs 51 and flow guide discs 52 arranged at intervals.

[0030] The throttle disc 51 is used to control the liquid inflow, and includes a first disc body 511, a throttle hole 512, and a first outer tooth portion 513. The first disc body 511 has a diameter matched with that of the fluid channel 32. The throttle hole 512 is arranged on the first disc body 511, and has a number and a size adjusted according to the required flow resistance value. The first outer tooth portion 513 is arranged on the outer periphery of the first disc body 511, and has a size and a number matched with those of the inner tooth groove 35, and is embedded in the inner tooth groove 35. During the installation of the throttle disc 51, the throttle disc 51 is rotated to the required installation angle, and the first outer tooth portion 513 is aligned with and embedded in the inner tooth groove 35. Then, the throttle disc 51 is pushed into the fluid channel 32, and is radially limited by the inner tooth groove 35, so that the radial deflection of the throttle disc 51 during the displacement is avoided, and the throttle disc 51 is linearly displaced along the fluid channel 32 and accurately reaches the installation point for the next axial limiting and fixing work.

[0031] The flow guide disc 52 is used to adjust the fluid travel angle and path, and includes a second disc body 521, a flow guide groove, and a second outer tooth portion 524. The second disc body 521 has a diameter matched with that of the fluid channel 32. The flow guide groove includes a flow guide hole 522 and a flow guide plate 523. The flow guide hole 522 is arranged through the second disc body 521, and has a center axis not coinciding with that of the throttle hole 512, and the liquid can be discharged through the flow guide hole 522. The flow guide plate 523 is arranged obliquely outside the flow guide hole 522, and forms a guide groove structure with the flow guide hole 522 to guide the discharged liquid and make the fluid flow along the set path. The second outer tooth portion 524 is arranged on the outer periphery of the second disc body 521, and has a size and a number matched with those of the inner tooth groove 35, and is embedded in the inner tooth groove 35. During the installation of the flow guide disc 52, the flow guide disc 52 is rotated to the required installation angle, and the second outer tooth portion 524 is aligned with and embedded in the inner tooth groove 35. Then, the flow guide disc 52 is pushed into the fluid channel 32, and is radially limited by the inner tooth groove 35, so that the radial deflection of the flow guide disc 52 during the displacement is avoided, and the flow guide disc 52 is linearly displaced along the fluid channel 32 and accurately reaches the installation point for the next axial limiting and fixing work.

[0032] Preferably, the included angle between the flow guide plate 523 and the flow guide hole 522 can be adjusted according to the required flow resistance value. Preferably, the flow guide hole 522 is selected from a circular hole, a triangular hole, a rectangular hole, or a special-shaped hole. Preferably, the flow guide plate 523 is selected from a triangular plate, a circular plate, a rectangular plate, or a special-shaped plate. The flow guide groove structure formed by the flow guide plate 523 and the flow guide hole 522 can control the travel path of the fluid, avoid the direct impact of the high-pressure fluid on the valve assembly, and effectively reduce the noise and vibration easily occurring during the operation of the ball valve.

[0033] Further, the flow guide plates 523 on the flow guide disc 52 are arranged clockwise or counterclockwise according to the flow resistance requirement.

[0034] As shown in the figure, the valve core assembly 5 is arranged in the fluid passage 32 of the valve ball 3, the throttling disc 51 and the flow guide disc 52 are arranged at intervals, and the relative angle of the throttling disc 51 and the flow guide disc 52 is adjusted, so that the fluid path formed by the adjacent throttling holes 512 and the flow guide groove constitutes a liquid spiral cavity. Figure 5 The installation angle and axial distance of the adjacent throttling disc 51 and the flow guide disc 52 can be adjusted, and the flow resistance generated during throttling also changes, and the fluid passage 32 is relatively long, which creates conditions for setting more different flow resistance values in the fluid passage 32, so that the adjustable flow resistance value of the present application can reach 10 or even higher.

[0035] The adjusting device of the utility model, through setting multiple groups of throttling disc 51 and flow guide disc 52 arranged at intervals in the fluid passage 32 of valve ball 3, the pressure drop of fluid medium is gradually reduced when passing through valve core assembly 5, and the pressure drop of each stage is insufficient to produce cavitation, realizes multistage throttling noise reduction, and different flow resistance values can be realized by different combinations of throttling disc 51 and flow guide disc 52, and the flow resistance can be adjusted under the premise of the same specification and model.

[0036] The adjusting device of the utility model, adjacent throttling holes 512 and flow guide grooves are not on the same axis, so that the space between the adjacent throttling disc 51 and the flow guide disc 52 forms a liquid spiral cavity, thereby dissipating fluid energy.

[0037] The adjusting device of the utility model can adjust the relative angle of the throttling hole 512 and the flow guide groove and other parameters, conveniently and quickly meet the needs of different valve resistance values of users, and provide multiple specifications and sizes for users to choose.

[0038] The adjusting device of the utility model, the spiral cavity between the two adjacent throttling disc 51 and the flow guide disc 52 changes with the change of the dislocation angle, increases the throttling area under the premise of ensuring the same flow resistance value, reduces the flow rate of the medium, and the design of the flow guide groove can disperse the impact force of the fluid on the ball and the valve seat under the working condition of high pressure, high flow rate or containing particulate medium, reduce the wear, improve the durability of the ball valve, and greatly prolong the adjustment life of the valve.

[0039] Those skilled in the art can understand that the above only describes the preferred embodiment of the present application, and is not intended to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A low-noise ball valve rotational flow orifice plate misalignment angle adjusting device, characterized in that, The utility model relates to a valve, including: Fluid passage (32) is located in valve ball (3), and the axial limiting mechanism is installed in it; Valve core assembly (5) is fixed in fluid passage (32) through the axial limiting mechanism, and the valve core assembly (5) includes throttling disc (51) and flow guide disc (52) that are arranged in parallel and are spaced, a plurality of flow guide holes (522) are formed on throttling disc (51), and flow guide groove is arranged on flow guide disc (52), and adjacent flow guide holes (522) and flow guide groove are not on the same axis.

2. The low noise ball valve cyclone orifice plate misalignment angle adjustment device of claim 1, wherein, The outer periphery of the fluid passage (32) is provided with an inner tooth groove (35) along the axial direction, the inner tooth groove (35) is embedded with the valve core assembly (5), and the relative embedding angle of the throttling disc (51) and the flow guide disc (52) is adjusted, so that the relative angle of adjacent throttling holes (512) and flow guide grooves changes, the fluid path changes, and thus the speed and direction of the fluid gradually change, so as to control the change of the flow resistance value.

3. The low noise ball valve cyclone orifice plate misalignment angle adjustment device of claim 2, wherein, The outer periphery of the throttling disc (51) is provided with a first outer tooth portion (513), and the outer periphery of the flow guide disc (52) is provided with a second outer tooth portion (524); the tooth specifications and the number of the first outer tooth portion (513) and the second outer tooth portion (524) are matched with the inner tooth groove (35), and the first outer tooth portion (513) and the second outer tooth portion (524) are embedded in the inner tooth groove (35).

4. The low noise ball valve cyclone orifice misalignment angle adjustment device of any one of claims 1-3, wherein, The throttling disc (51) further includes a first disc body (511) and a throttling hole (512); the diameter of the first disc body (511) is matched with the diameter of the fluid passage (32); the throttling hole (512) is arranged on the first disc body (511), and the throttling hole (512) is arranged according to the required flow resistance value and adjusts the size of the hole diameter.

5. A low noise ball valve cyclone orifice misalignment angle adjustment device according to any one of claims 1-3, characterized in that, The flow guide groove includes a flow guide hole (522) and a flow guide plate (523); the flow guide hole (522) is arranged through the flow guide disc (52), and the central axis of the flow guide hole (522) does not coincide with the central axis of the throttling hole (512), and liquid can be discharged through the flow guide hole (522); the flow guide plate (523) is arranged obliquely outside the flow guide hole (522), and the flow guide hole (522) and the flow guide plate (523) form a guide groove structure to guide the discharged liquid.

6. A low noise ball valve cyclone orifice misalignment angle adjustment device according to any one of claims 1-3, characterized in that, The axial limiting mechanism includes a plurality of groups of annular positioning grooves (34) arranged at intervals on the outer periphery of the fluid passage (32), and the clamping ring (36) is arranged in the positioning groove (34); through the clamping ring (36), the axial positioning of the valve core assembly (5) is realized.

7. The low noise ball valve cyclone orifice plate misalignment angle adjustment device of claim 6, wherein, The bottom of the clamping ring (36) is provided with a reset spring, and the other end of the reset spring is fixedly connected with the groove bottom of the positioning groove (34).

8. The low noise ball valve cyclone orifice plate misalignment angle adjustment device of claim 7, wherein, The axial limiting mechanism further includes a limiting rod, which is parallel to the fluid passage (32) and penetrates through a plurality of positioning grooves (34) to limit the bottom of the clamping ring (36) and prevent the clamping ring (36) from retracting into the positioning groove (34).

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