Noise reduction buffer structure for fluid in valve

Abstract

The utility model discloses a noise reduction buffer structure for fluid in a valve, and belongs to the technical field of regulating valves. The in-valve fluid noise reduction and buffering structure comprises an adjusting valve assembly, a noise reduction and buffering shell and an adjusting assembly, the noise reduction and buffering shell is arranged in the adjusting valve assembly, the adjusting assembly is arranged on one side of the outer portion of the adjusting valve assembly, and the noise reduction and buffering shell is used for absorbing noise generated by fluid flowing. The adjusting assembly is used for adjusting the fluid flow at the water inlet pipe and comprises a valve body, the inner wall of the valve body is fixedly connected with the outer wall of the noise reduction buffer shell, and a first connecting pipe and a second connecting pipe are installed on the two sides of the exterior of the valve body correspondingly; one end of the water inlet pipe is fixedly connected with the end, away from the valve body, of the first connecting pipe, a first circulation cavity, a second circulation cavity and a third circulation cavity are sequentially formed in the water inlet pipe from left to right, a square plate is arranged in the position, close to the first circulation cavity, of the second circulation cavity, and a plurality of through holes are formed in the square plate.

Description

Technical Field

[0001] This utility model relates to the field of regulating valve technology, specifically to a valve internal fluid noise reduction and buffering structure. Background Technology

[0002] Valves are key components in industrial fluid control, and are mainly classified into regulating valves, gate valves, globe valves, ball valves, butterfly valves, etc., according to their structure and application. Regulating valves are used to adjust process parameters such as flow rate, pressure, temperature, and liquid level in industrial automation process control. Based on control signals from the automation system, they automatically adjust the valve opening to regulate these parameters. Regulating valves generally refer to control valves. Control valves consist of two main assemblies: the valve body assembly and the actuator assembly.

[0003] Based on the above, the inventors have discovered the following problems: In actual use, the current regulating valves lack a noise reduction structure inside, making it difficult to absorb the noise generated during fluid flow. At the same time, the current regulating valves are not convenient for adjusting the fluid flow rate at the inlet. When the fluid flow rate at the inlet is too high, it will cause a severe impact on the valve plate and other core components, thereby causing strong vibration and noise, resulting in noise pollution.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a valve internal fluid noise reduction and buffer structure in order to achieve a more practical purpose. Utility Model Content

[0005] The purpose of this invention is to provide a valve internal fluid noise reduction and buffer structure to solve the problems mentioned in the background art.

[0006] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0007] A valve internal fluid noise reduction and buffer structure includes a regulating valve assembly, a noise reduction buffer shell, and a regulating component. The noise reduction buffer shell is disposed inside the regulating valve assembly, and the regulating component is disposed on the outer side of the regulating valve assembly. The noise reduction buffer shell is used to absorb noise generated by fluid flow, and the regulating component is used to regulate the fluid flow rate at the inlet pipe. The regulating valve assembly includes a valve body, the inner wall of which is fixedly connected to the outer wall of the noise reduction buffer shell. A first connecting pipe and a second connecting pipe are respectively installed on the outer sides of the valve body. The regulating component includes an inlet pipe, one end of which is fixedly connected to the end of the first connecting pipe away from the valve body. The inlet pipe has a first flow cavity, a second flow cavity, and a third flow cavity sequentially formed from left to right. The second flow cavity has a square plate inside near the first flow cavity, and the square plate has several through holes.

[0008] Furthermore, the noise-reducing buffer shell is made of porous ceramic material.

[0009] The beneficial effect of adopting the above-mentioned further solution is that by setting the noise reduction buffer shell as a porous ceramic material, the porous ceramic is resistant to high temperature, corrosion and has high strength. At the same time, the porous structure increases the contact area between the fluid and the noise reduction buffer shell. Through the air compression in the pores and the sound absorption characteristics of the ceramic material, the noise of fluid flow is absorbed and the vibration transmission is reduced.

[0010] Furthermore, the first flow cavity, the second flow cavity, and the third flow cavity are interconnected. The first and third flow cavities are circular, the second flow cavity is square, and the inner wall of the second flow cavity is fixedly connected to the outer wall of the square plate.

[0011] The beneficial effect of adopting the above-mentioned further solution is that, since the first flow chamber, the second flow chamber and the third flow chamber are interconnected, the fluid can flow through the first flow chamber, the second flow chamber and the third flow chamber in sequence and then enter the valve body. When the fluid flows through the second flow chamber, the fluid is slowed down by the opening of several through holes on the square plate.

[0012] Furthermore, the upper end of the water inlet pipe is provided with a first through groove, and an installation seat is installed at the upper end of the water inlet pipe at the first through groove. The bottom end of the installation seat is provided with a second through groove. The first through groove and the second through groove are interconnected. A pressure plate is provided inside the first through groove. One side of the pressure plate is tightly fitted with one side of the square plate. The pressure plate extends through the second through groove to the interior of the installation seat at the end away from the second flow cavity. The outer wall of one end of the pressure plate is fitted with the inner wall of the second flow cavity.

[0013] The beneficial effect of adopting the above-mentioned further solution is that, since one side of the pressure plate is closely attached to one side of the square plate, when the pressure plate moves up or down, the pressure plate blocks less or more of the through holes on the square plate, thereby achieving flow regulation. When the flow rate decreases, the fluid speed slows down, which reduces the impact of the fluid on the valve plate and other components, thereby reducing noise.

[0014] Furthermore, a screw is rotatably connected to the top of the inner part of the mounting base. One end of the screw extends through the pressure plate and is threadedly connected to the pressure plate. Sliding grooves are provided on both sides of the inner wall of the mounting base. Sliding blocks are slidably connected inside the two sliding grooves. One side of a pair of sliding blocks is fixedly connected to the outer sides of the pressure plate. The end of the screw that is away from the second through groove extends through the mounting base to the outside and is fitted with a knob.

[0015] The beneficial effect of adopting the above-mentioned further solution is that, by setting a screw, since the screw is threadedly connected to the pressure plate, and the sliders are installed on the outer sides of the pressure plate near the upper end, and the sliders are slidably connected to the slide groove, when the screw rotates, the pressure plate with its external threaded connection can move linearly under the sliding limit action of the sliders and the slide groove. By setting a knob, it is convenient for the operator to rotate the screw by turning the knob.

[0016] Furthermore, the first through groove is provided with a first sealing ring inside, and the inner wall of the second through groove is provided with a second sealing ring. The inner walls of the first sealing ring and the second sealing ring are respectively attached to the outer wall of the pressure plate, and the outer walls of the first sealing ring and the second sealing ring are respectively fixedly connected to the inner walls of the first through groove and the second through groove.

[0017] The beneficial effect of adopting the above-mentioned further solution is that by setting the first sealing ring and the second sealing ring, the sealing performance between the water inlet pipe and the pressure plate, and between the mounting base and the pressure plate is improved, thus preventing fluid leakage from the gap between the bottom plate and the first and second through grooves during the fluid transportation process.

[0018] Furthermore, a second flange is fitted on the outside of the end of the water inlet pipe away from the valve body, and the inner wall of the second flange is fixedly connected to the outer wall of the water inlet pipe. A water outlet pipe is installed on the end of the second connecting pipe away from the valve body, and a first flange is fitted on the outside of the end of the water outlet pipe away from the valve body, and the inner wall of the first flange is fixedly connected to the outer wall of the water outlet pipe.

[0019] The advantage of adopting the above-mentioned further solution is that, through the combined use of the first flange and the second flange, it is convenient to connect the inlet pipe and the outlet pipe to the external pipe flange respectively.

[0020] Furthermore, a valve cover is bolted to the upper end of the valve body.

[0021] The advantage of adopting the above-mentioned further solution is that by connecting the valve body and the valve cover with bolts, it is easy to remove the bolts using tools such as screwdrivers, so that the valve cover can be separated from the valve body and the internal components of the valve body can be maintained.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows: The internal fluid noise reduction and buffer structure of this valve, by setting a noise reduction buffer shell, and the noise reduction buffer shell is made of porous ceramic material, porous ceramic is resistant to high temperature, corrosion and has high strength. At the same time, the porous structure increases the contact area between the fluid and the noise reduction buffer shell. Through the air compression in the pores and the sound absorption characteristics of the ceramic material, the noise generated by the fluid flow is absorbed. Since several through holes are opened on the square plate, when the fluid flows through the second flow cavity, the fluid is decelerated in layers. Since one side of the pressure plate is closely attached to one side of the square plate, a knob is set to facilitate the operator to rotate the screw. The pressure plate connected to the screw externally is moved downward under the sliding limit action of the slider and the slide groove. The pressure plate blocks more of the through holes on the square plate, thereby reducing the flow rate of the fluid entering the valve body and slowing down the fluid speed, thus reducing the impact of the fluid on the valve plate and other components, thereby reducing noise. Attached Figure Description

[0023] Figure 1 A three-dimensional structural diagram of a valve internal fluid noise reduction and buffer structure provided by this utility model;

[0024] Figure 2 A three-dimensional structural diagram of a noise reduction buffer shell for a valve internal fluid noise reduction buffer structure provided by this utility model;

[0025] Figure 3 An exploded three-dimensional structural diagram of the regulating component of a valve internal fluid noise reduction and buffer structure provided by this utility model;

[0026] Figure 4 A cross-sectional view of the regulating seat of an in-valve fluid noise reduction and buffer structure provided by this utility model;

[0027] Figure 5 This is a side cross-sectional view of the mounting base for a valve internal fluid noise reduction and buffer structure provided by this utility model.

[0028] In the diagram: 1. Regulating valve assembly; 11. Valve body; 12. First connecting pipe; 13. Valve cover; 14. Outlet pipe; 15. First flange; 2. Noise reduction buffer shell; 3. Regulating assembly; 31. Inlet pipe; 32. First flow chamber; 33. Second flow chamber; 34. Third flow chamber; 35. Square plate; 36. Through hole; 37. First through groove; 38. Mounting base; 39. Pressure plate; 310. First sealing ring; 311. Screw; 312. Knob; 313. Slide groove; 314. Slider; 315. Second flange. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1-5 This utility model provides a technical solution: a valve internal fluid noise reduction and buffer structure, including a regulating valve assembly 1, a noise reduction buffer shell 2, and a regulating component 3. The noise reduction buffer shell 2 is disposed inside the regulating valve assembly 1, and the regulating component 3 is disposed on the outer side of the regulating valve assembly 1. The noise reduction buffer shell 2 is used to absorb the noise generated by fluid flow, and the regulating component 3 is used to regulate the fluid flow rate at the inlet pipe 31. The regulating valve assembly 1 includes a valve body 11, the inner wall of which is fixedly connected to the outer wall of the noise reduction buffer shell 2. A first connecting pipe 12 and a second connecting pipe are respectively installed on the outer sides of the valve body 11. The regulating component 3 includes an inlet pipe 31, one end of which is fixedly connected to the end of the first connecting pipe 12 away from the valve body 11. The inlet pipe 31 has a first flow chamber 32, a second flow chamber 33, and a third flow chamber 34 arranged sequentially from left to right. The second flow chamber 33 has a square plate 35 near the first flow chamber 32. The square plate 35 has several through holes 36. The noise reduction buffer shell 2 is made of porous ceramic material. By setting the noise reduction buffer shell 2, and the fact that the noise reduction buffer shell 2 is made of porous ceramic material, the porous ceramic material is resistant to high temperature, corrosion and has high strength. At the same time, the porous structure increases the contact area between the fluid and the noise reduction buffer shell 2. Through the air compression in the pores and the sound absorption characteristics of the ceramic material, the noise generated by the fluid flow is absorbed. Since several through holes 36 are opened on the square plate 35, when the fluid flows through the second flow chamber 33, the fluid is decelerated by stratification.

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figures 1-5This utility model provides a technical solution: the first flow cavity 32, the second flow cavity 33, and the third flow cavity 34 are interconnected. The first flow cavity 32 and the third flow cavity 34 are circular, and the second flow cavity 33 is square. The inner wall of the second flow cavity 33 is fixedly connected to the outer wall of the square plate 35. A first through groove 37 is provided at the upper end of the water inlet pipe 31. An mounting base 38 is installed at the upper end of the water inlet pipe 31 at the first through groove 37. A second through groove is provided at the bottom end of the mounting base 38. The first through groove 37 and the second through groove are interconnected. A pressure plate 39 is provided inside the first through groove 37. One side of the pressure plate 39 is tightly fitted to one side of the square plate 35. The pressure plate 39 extends through the second through groove to the interior of the mounting base 38 at the end away from the second flow cavity 33. The outer wall of one end of the pressure plate 39 is fitted to the inner wall of the second flow cavity 33. A screw 311 is rotatably connected to the top of the interior of the mounting base 38. One end of the screw 311 extends through the pressure plate 39 and is threadedly connected to the pressure plate 39. Sliding grooves 313 are provided on both sides of the inner wall of the mounting base 38. Sliding sliders 314 are slidably connected inside the two sliding grooves 313. One side of each pair of sliding sliders 314 is fixed to the outer sides of the pressure plate 39. The screw 311 extends through the mounting base 38 to the outside at the end away from the second through groove, and is fitted with a knob 312. A first sealing ring 310 is provided inside the first through groove 37, and a second sealing ring is provided on the inner wall of the second through groove. The inner walls of the first and second sealing rings respectively fit against the outer wall of the pressure plate 39. The outer walls of the first and second sealing rings are fixedly connected to the inner walls of the first and second through grooves, respectively. Since one side of the pressure plate 39 is tightly fitted against one side of the square plate 35, the knob 312 facilitates the operator to rotate the screw 311 by turning the knob 312. 1. Rotation causes the external threaded pressure plate 39 of the screw 311 to move downward under the sliding limit action of the slider 314 and the groove 313. The pressure plate 39 blocks more of the through hole 36 on the square plate 35, thereby reducing the flow rate of fluid entering the valve body 11 and slowing down the fluid speed, which reduces the impact of the fluid on the valve plate and other components, thereby reducing noise. By setting the first sealing ring 310 and the second sealing ring, the sealing between the water inlet pipe 31 and the pressure plate 39, and between the mounting base 38 and the pressure plate 39 is improved, preventing leakage from the gap between the bottom plate and the first through groove 37 and the second through groove during fluid transportation.

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Please see Figures 1-5 This utility model provides a technical solution: a second flange 315 is fitted on the outside of the end of the water inlet pipe 31 away from the valve body 11, and the inner wall of the second flange 315 is fixedly connected to the outer wall of the water inlet pipe 31. A water outlet pipe 14 is installed on the end of the second connecting pipe away from the valve body 11, and a first flange 15 is fitted on the outside of the end of the water outlet pipe 14 away from the valve body 11, and the inner wall of the first flange 15 is fixedly connected to the outer wall of the water outlet pipe 14. A valve cover 13 is installed on the upper end of the valve body 11 by bolts. Through the cooperation of the first flange 15 and the second flange 315, it is convenient to connect the water inlet pipe 31 and the water outlet pipe 14 to the external pipe flange respectively.

[0035] Specifically, the working principle of this internal fluid noise reduction and buffer structure is as follows: During use, the regulating valve assembly 1 is installed between a pair of external pipes via the first flange 15 and the second flange 315. Since the first flow chamber 32, the second flow chamber 33, and the third flow chamber 34 are interconnected, the fluid can flow sequentially through these chambers before entering the valve body 11. When the fluid flows through the second flow chamber 33, the several through holes 36 on the square plate 35 cause the fluid to slow down in layers. Because one side of the pressure plate 39 is tightly fitted to one side of the square plate 35, and a knob 312 is provided, the operator can easily rotate the screw 311 to make the screw... The externally threaded pressure plate 39 moves downward under the sliding limit action of the slider 314 and the groove 313. The pressure plate 39 blocks more of the through hole 36 on the square plate 35, thereby reducing the flow rate of fluid entering the valve body 11 and slowing down the fluid speed. This reduces the impact of the fluid on the valve plate and other components, thereby reducing noise. At the same time, after the fluid enters the valve body 11, a noise reduction buffer shell 2 is set. The noise reduction buffer shell 2 is made of porous ceramic material. Porous ceramic is resistant to high temperature, corrosion and has high strength. At the same time, the porous structure increases the contact area between the fluid and the noise reduction buffer shell 2. Through the air compression in the pores and the sound absorption characteristics of the ceramic material, the noise generated by the fluid flow is absorbed, further achieving the purpose of noise reduction.

[0036] It should be noted that all standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. Furthermore, since this application is mainly used to protect mechanical devices, the control methods and circuit connections will not be explained in detail in this application.

Claims

1. A valve internal fluid noise reduction and buffer structure, characterized in that, The system includes a regulating valve assembly (1), a noise-reducing buffer shell (2), and a regulating component (3). The noise-reducing buffer shell (2) is disposed inside the regulating valve assembly (1), and the regulating component (3) is disposed on the outer side of the regulating valve assembly (1). The noise-reducing buffer shell (2) is used to absorb noise generated by fluid flow, and the regulating component (3) is used to regulate the fluid flow rate at the inlet pipe (31). The regulating valve assembly (1) includes a valve body (11), the inner wall of which is fixedly connected to the outer wall of the noise-reducing buffer shell (2). The first connecting pipe (12) and the second connecting pipe are respectively installed on the outer sides. The regulating component (3) includes a water inlet pipe (31). One end of the water inlet pipe (31) is fixedly connected to the end of the first connecting pipe (12) away from the valve body (11). The water inlet pipe (31) has a first flow chamber (32), a second flow chamber (33) and a third flow chamber (34) opened from left to right. The second flow chamber (33) has a square plate (35) inside near the first flow chamber (32). The square plate (35) has several through holes (36).

2. The valve internal fluid noise reduction and buffer structure according to claim 1, characterized in that, The noise reduction buffer shell (2) is made of porous ceramic material.

3. The valve internal fluid noise reduction and buffer structure according to claim 1, characterized in that, The first flow cavity (32), the second flow cavity (33) and the third flow cavity (34) are interconnected. The first flow cavity (32) and the third flow cavity (34) are circular, and the second flow cavity (33) is square. The inner wall of the second flow cavity (33) is fixedly connected to the outer wall of the square plate (35).

4. The valve internal fluid noise reduction and buffer structure according to claim 1, characterized in that, The upper end of the water inlet pipe (31) is provided with a first through groove (37). The upper end of the water inlet pipe (31) is provided with a mounting base (38) located at the first through groove (37). The bottom end of the mounting base (38) is provided with a second through groove. The first through groove (37) and the second through groove are interconnected. The interior of the first through groove (37) is provided with a pressure plate (39). One side of the pressure plate (39) is tightly fitted with one side of the square plate (35). The pressure plate (39) extends through the second through groove to the interior of the mounting base (38) at the end away from the second flow cavity (33). The outer wall of one end of the pressure plate (39) is fitted with the inner wall of the second flow cavity (33).

5. The valve internal fluid noise reduction and buffer structure according to claim 4, characterized in that, The mounting base (38) is rotatably connected to the top of the interior with a screw (311). One end of the screw (311) extends through the pressure plate (39) into the interior and is threadedly connected to the pressure plate (39). The inner walls of the mounting base (38) are provided with sliding grooves (313) on both sides. The sliding grooves (313) are slidably connected with sliders (314) inside. One side of a pair of sliders (314) is fixedly connected to the outer sides of the pressure plate (39) respectively. The screw (311) extends through the mounting base (38) into the exterior at the end away from the second through groove and is fitted with a knob (312).

6. The valve internal fluid noise reduction and buffer structure according to claim 4, characterized in that, The first through groove (37) is provided with a first sealing ring (310), and the inner wall of the second through groove is provided with a second sealing ring. The inner walls of the first sealing ring (310) and the second sealing ring are respectively attached to the outer wall of the pressure plate (39). The outer walls of the first sealing ring (310) and the second sealing ring are respectively fixedly connected to the inner walls of the first through groove (37) and the second through groove.

7. The valve internal fluid noise reduction and buffer structure according to claim 1, characterized in that, The inlet pipe (31) is fitted with a second flange (315) at the end away from the valve body (11). The inner wall of the second flange (315) is fixedly connected to the outer wall of the inlet pipe (31). The second connecting pipe is fitted with an outlet pipe (14) at the end away from the valve body (11). The outlet pipe (14) is fitted with a first flange (15) at the end away from the valve body (11). The inner wall of the first flange (15) is fixedly connected to the outer wall of the outlet pipe (14).

8. The valve internal fluid noise reduction and buffer structure according to claim 7, characterized in that, The valve body (11) is fitted with a valve cover (13) by bolts at its upper end.

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