Noise reduction valve

Abstract

The invention provides a noise reduction valve. The noise reduction valve comprises a first valve body, a second valve body, a valve element and a plurality of noise attenuation inner pieces. The first valve body, the second valve body and the valve element are each provided with a channel. The first valve body and the second valve body are fixedly connected in a manner that respective channels are opposite to each other, and an accommodating space is formed; the valve element is contained in the containing space. The noise attenuation inner pieces are embedded in the channels of the corresponding valve element and the channels of the second valve body. The noise attenuation inner part comprises a valve cage and a plurality of plate sheets arranged on the peripheral face of the valve cage in a sleeving mode. Through holes are formed in the valve cage and the plate sheets; the valve cage is fixedly connected to the inner wall of the channel; a fluid medium flows through the valve element and the second valve body and passes through the through hole, and noise reduction is achieved in a turbulent flow mode. According to the noise reduction valve, when a fluid medium flows through the valve element and the second valve body, the form of the fluid medium is effectively optimized, noise and vibration are eliminated through the through holes in the noise attenuation inner part, meanwhile, energy consumption of the noise reduction valve is reduced, and the working environment of a production site is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of pipeline valves, and in particular relates to a noise reduction valve. Background Art

[0002] At present, rotary control valves are widely used in coal chemical, petrochemical, steel, metallurgy, air separation and other industries due to their advantages such as small fluid resistance, large flow capacity, fast switching, good sealing performance, long life, and easy gas control and electric control.

[0003] However, due to the large flow capacity and rapid switching characteristics of the rotary control valve, it is easy to cause high noise and strong vibration during the opening and closing process of the control valve. This is because the pressure on both sides of the valve changes instantly during the opening and closing process of the rotary control valve. When the fluid passes through the control valve flow channel at a high speed, turbulence, flashing and cavitation will occur, causing wear and damage to the valve body and seals. At the same time, the high noise and strong vibration during the opening and closing process of the rotary control valve also cause energy loss of the valve, which is very harmful to the health of the operator. Summary of the invention

[0004] In view of the above problems existing in the prior art, the present invention provides a noise reduction valve which is simple in structure, easy to process, convenient to assemble, and energy-saving and efficient.

[0005] To achieve the above purpose, the technical solution adopted by the embodiment of the present invention is:

[0006] The present invention provides a noise reduction valve, comprising: a first valve body, a second valve body, a valve core, and a plurality of noise attenuation internals; the first valve body, the second valve body, and the valve core are all provided with channels; the first valve body and the second valve body are fixedly connected in a manner that the respective channels are opposite to each other, and form an accommodating space; the valve core is accommodated in the accommodating space; the noise attenuation internals are embedded in the corresponding channels of the valve core and the channels of the second valve body; the noise attenuation internals comprise: a valve cage, and a plurality of plates sleeved on the outer circumferential surface of the valve cage; the valve cage and the plates are both provided with through holes; the valve cage is fixedly connected to the inner wall of the channel; a fluid medium flows through the valve core and the second valve body, and passes through the through holes, so as to obtain noise reduction in a turbulent manner.

[0007] In some embodiments of the present invention, the valve cage includes a cylinder, two neck sections and two fixed sections; the neck sections are relatively arranged at two ends of the cylinder; the two ends of the neck section are respectively connected to the cylinder and the fixed sections; the fixed section is provided with a positioning hole, and the inner walls of the respective channels of the valve core and the second valve body are provided with internal threaded holes corresponding to the positions of the positioning holes; the hexagon socket screw passes through the positioning hole and is screwed into the internal threaded hole, so that the valve cage is fixedly connected to the inner walls of the respective channels of the valve core and the second valve body through the fixed section.

[0008] In some embodiments of the present invention, the plates are evenly distributed along the axial direction; and the through holes are evenly distributed on the cylinder, the neck section and the plates.

[0009] In some embodiments of the present invention, the through holes of the cylinder are evenly distributed in the axial direction and the radial direction; the through holes of the cylinder are arranged in 2-10 numbers in the axial direction and 2-10 numbers in the radial direction.

[0010] In some embodiments of the present invention, the plate is spaced apart from the through hole of the cylinder along the axial direction.

[0011] In some embodiments of the present invention, the thickness of the plate is set in the range of 5-10 mm; the fixing section and the plate have the same outer diameter.

[0012] In some embodiments of the present invention, the angle between the cylinder and the neck section is set to be an obtuse angle.

[0013] In some embodiments of the present invention, the through holes are configured as circular through holes; and the spacing between the through holes is configured as 2-10 mm.

[0014] In some embodiments of the present invention, the noise reduction valve also includes: two groups of sealing components, a valve stem and a fixed shaft; each group of sealing components includes a valve seat, a pressure ring and a spring; the valve seat is correspondingly clamped between: the first valve body and the valve core, and the second valve body and the valve core; the valve core and the valve seat form a spherical seal; the pressure ring and the spring are correspondingly arranged in the respective grooves of the first valve body and the second valve body, and are located between the valve core and the first valve body, and between the valve core and the second valve body; the valve stem is located between the first valve body and the second valve body, and is connected to the valve core for driving the valve core; the fixed shaft passes between the first valve body and the second valve body, and forms a fixed connection with the valve core.

[0015] In some embodiments of the present invention, the noise attenuation interior is made using a 3D printing process.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The noise reduction valve provided by the present invention arranges the noise attenuation internal component in the channel of the second valve body and the valve core, thereby changing the flow path of the fluid medium when flowing through the channel, effectively optimizing the fluid morphology in the noise reduction valve, and correspondingly eliminating noise and vibration, while reducing the energy consumption of the valve and improving the working environment of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In the drawings, which are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The same reference numerals with letter suffixes or different letter suffixes may represent different instances of similar parts. The accompanying drawings generally illustrate various embodiments by way of example and not limitation, and together with the specification and claims, are used to illustrate the disclosed embodiments. When appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts. Such embodiments are illustrative and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.

[0019] Figure 1 is a schematic diagram of a noise reduction valve in an open state according to an embodiment of the present invention;

[0020] Figure 2 is a schematic diagram of a noise reduction valve in a closed state according to an embodiment of the present invention;

[0021] Figure 3 A schematic diagram of the structure of a noise attenuation internal component according to an embodiment of the present invention;

[0022] Figure 4 FIG. 1 is a side view of a noise attenuation interior of an embodiment of the present invention.

[0023] 1-first valve body; 2-second valve body; 3-valve stem; 4-valve core; 5-valve seat;

[0024] 6-pressure ring; 7-spring; 8-fixed shaft;

[0025] 11-noise attenuation internal part; 111-cylinder; 112-neck section; 113-fixed section; 114-plate;

[0026] 115-through hole; 116-positioning hole DETAILED DESCRIPTION

[0027] Below, the specific embodiments of the present invention are described in detail in conjunction with the accompanying drawings, but they are not intended to limit the present invention. In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific implementation methods. Below, the embodiments of the present invention are further described in detail in conjunction with the accompanying drawings and specific implementation methods, but they are not intended to limit the present invention.

[0028] All terms (including technical terms or scientific terms) used in the present disclosure have the same meanings as those understood by ordinary technicians in the field to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, such as general dictionaries, should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0029] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0030] Due to the large flow capacity and rapid switching characteristics of the rotary control valve, the rotary control valve is often in a high pressure drop situation, and the pressure or flow rate changes greatly instantly, especially in the process of opening and closing the rotary control valve, there are problems of high noise and strong vibration. To this end, the present invention provides the following solution.

[0031] The present invention provides a noise reduction valve, combined with Figures 1 to 4 , which comprises: a first valve body 1, a second valve body 2, a valve core 4, and a plurality of noise attenuation inner parts 11; the first valve body 1, the second valve body 2 and the valve core 4 are all provided with channels; the first valve body 1 and the second valve body 2 are fixedly connected in a manner that the respective channels are opposite to each other, and form an accommodating space; the valve core 4 is accommodated in the accommodating space; the noise attenuation inner part 11 is embedded in the corresponding channel of the valve core 4 and the channel of the second valve body 2; the noise attenuation inner part 11 comprises: a valve cage, and a plurality of plates 114 sleeved on the outer circumferential surface of the valve cage; the valve cage and the plates 114 are both provided with through holes 115; the valve cage is fixedly connected to the inner wall of the channel; the fluid medium flows through the valve core 4 and the second valve body 2, and passes through the through holes 115, and obtains noise reduction in a turbulent manner. Usually in the normal production process, the noise reduction valve changes from the closed state to the open state. Due to the requirements of the process flow, the high pressure state in the channel needs to be kept stable, which makes a large flow change in a short time produce huge noise. However, through the noise reduction valve of this embodiment, after the fluid medium enters the noise reduction valve from the first valve body 1, it passes through the valve core 4 and the second valve body 2 in sequence and flows out from the second valve body 2. Since the noise attenuation inner part 11 is set in the valve core 4 and the second valve body 2, when the fluid medium flows through the valve core 4 and the second valve body 2, under the action of the noise attenuation inner part 11, the flow pattern of the fluid medium is effectively changed. For example, without reducing the pressure in the channel, the noise attenuation inner part 11 generates turbulence to the fluid medium, effectively eliminates noise and vibration, and thus improves the working environment, and the health of the operator is also correspondingly protected. In addition, the noise attenuation inner part 11 is made by 3D printing technology to ensure the quality of the noise attenuation inner part 11.

[0032] In one embodiment, in combination Figure 3 and Figure 4The cage includes a cylinder 111, two neck sections 112 and two fixed sections 113; the neck sections 112 are arranged at opposite ends of the cylinder 111; the two ends of the neck section 112 are connected to the cylinder 111 and the fixed sections 113 respectively; the fixed sections 113 are provided with a positioning hole 116, and the inner walls of the respective passages of the valve core 4 and the second valve body 2 are provided with internal threaded holes corresponding to the positions of the positioning holes 116; the hexagon socket screws (not shown in the figure) pass through the positioning holes 116 and are screwed into the internal threaded holes, so that the cage is fixedly connected to the inner walls of the respective passages of the valve core 4 and the second valve body 2 through the fixed sections 113. In this embodiment, when the fluid medium passes through the through hole 115 of the neck section 112, the resistance to the fluid medium is effectively increased. Furthermore, the fluid medium is disturbed by the synergistic effect of the passage of the cylinder 111, thereby increasing the friction loss of the fluid medium, effectively reducing the flow rate of the fluid medium through the valve core 4 and the second valve body 2, so that the pressure is gradually reduced, and the noise and vibration generated by the fluid medium are correspondingly reduced.

[0033] Furthermore, combined with Figure 3 and Figure 4 , the plate 114 is evenly distributed along the axial direction; the through holes 115 are evenly distributed on the cylinder 111, the neck section 112 and the plate 114. Among them, the through holes 115 of the cylinder 111 are evenly distributed along the axial direction and radial direction; the through holes 115 of the cylinder 111 are set 2-10 in the axial direction and 2-10 in the radial direction. The plate 114 is spaced apart from the through holes 115 of the cylinder 111 in the axial direction. The thickness of the plate 114 is set in the range of 5-10mm; the fixed section 113 and the plate 114 have the same outer diameter. In this embodiment, the number of through holes 115 and the thickness of the plate 114 can be adjusted accordingly according to the actual application situation, and no further limitation is made here. Of course, based on the different numbers of through holes 115, the gaps between the through holes 115 can be set in a sequential increasing or decreasing manner. Similarly, the positional relationship between the plate 114 and the through hole 115 can also be adjusted based on demand, as long as the turbulence can be achieved and the requirements of reducing noise and vibration can be met.

[0034] Further, see Figure 4 , the angle between the cylinder 111 and the neck section 112 is set to an obtuse angle. In this embodiment, the intersections between the cylinder 111 and the neck section 112, and between the neck section 112 and the fixed section 113 can also be processed in a rounded transition manner. The specific method can be adjusted accordingly according to actual needs and is not further limited here.

[0035] Further, see Figure 3 and Figure 4 The through holes 115 are circular through holes 115; the spacing between the through holes 115 is 2-10 mm. The spacing can be adjusted according to the properties and flow rate of the fluid medium in actual applications, and no further limitation is made here.

[0036] In some embodiments of the present invention, the noise reduction valve also includes: two groups of sealing components, a valve stem 3 and a fixed shaft 8; each group of sealing components includes a valve seat 5, a pressure ring 6 and a spring 7; the valve seat 5 is correspondingly clamped between: the first valve body 1 and the valve core 4, and the second valve body 2 and the valve core 4; the valve core 4 and the valve seat 5 form a spherical seal; the pressure ring 6 and the spring 7 are correspondingly arranged in the respective grooves of the first valve body 1 and the second valve body 2, and are located between the valve core 4 and the first valve body 1, and between the valve core 4 and the second valve body 2; the valve stem 3 is located between the first valve body 1 and the second valve body 2, and is connected to the valve core 4 for driving the valve core 4; the fixed shaft 8 passes through between the first valve body 1 and the second valve body 2, and forms a fixed connection with the valve core 4.

[0037] In addition, although illustrative embodiments are described herein, the scope includes any and all embodiments having equivalent elements, modifications, omissions, combinations (e.g., combinations of schemes across various embodiments), adjustments, or variations based on the present disclosure. The elements in the claims are to be interpreted broadly based on the language used in the claims and are not limited to the examples described in this specification or during the continuation of this application. In addition, the steps of the disclosed methods may be modified in any way, including by reordering steps or inserting or deleting steps. Therefore, it is intended that the description be viewed merely as an example, with the true scope being represented by the following claims and their full range of equivalents.

[0038] The above description is intended to be illustrative and not restrictive. For example, the above examples (or one or more aspects thereof) can be used in combination with each other. After reading the above description, other embodiments may be used by a person of ordinary skill in the art, for example. Moreover, in the above detailed description, various features may be combined together to simplify the present disclosure. This should not be interpreted as intending that the disclosed features that are not requested for protection are essential to any claim. Therefore, the following claims are incorporated into the specific implementation as examples or embodiments, wherein each claim itself is a separate embodiment, and it can be expected that these embodiments can be combined with each other in various combinations or permutations. The scope of the present invention should be determined with reference to the attached claims and the full scope of equivalents given by these claims.

Claims

1. A noise reduction valve, It is characterized in that include: A first valve body, a second valve body, a valve core, and a plurality of noise attenuation internal parts; The first valve body, the second valve body and the valve core are all provided with channels; the first valve body and the second valve body are fixedly connected in a manner that the channels are opposite to each other, and form an accommodation space; the valve core is accommodated in the accommodation space; The noise attenuation inner part is embedded in the corresponding passage of the valve core and the passage of the second valve body; The noise attenuation internal part comprises: a valve cage, and a plurality of plates sleeved on the outer circumference of the valve cage; the valve cage and the plates are both provided with through holes; the valve cage is fixedly connected to the inner wall of the channel; The fluid medium flows through the valve core and the second valve body and passes through the through hole to achieve noise reduction in a turbulent manner.

2. The noise reduction valve according to claim 1, It is characterized in that The valve cage comprises a cylinder, two neck sections and two fixed sections; the neck sections are arranged at two ends of the cylinder relatively; the two ends of the neck section are respectively connected to the cylinder and the fixed sections; The fixing section is provided with a positioning hole, and the inner walls of the respective channels of the valve core and the second valve body are provided with internal threaded holes corresponding to the positions of the positioning holes; The hexagon socket screw passes through the positioning hole and is threadedly connected to the internal threaded hole, so that the valve cage is fixedly connected to the inner walls of the respective channels of the valve core and the second valve body through the fixing section.

3. The noise reduction valve according to claim 2, It is characterized in that The plates are evenly distributed along the axial direction; the through holes are evenly distributed on the cylinder, the neck section and the plates.

4. The noise reduction valve according to claim 2, It is characterized in that The through holes of the cylinder are evenly distributed in the axial direction and the radial direction; the through holes of the cylinder are arranged in 2-10 numbers in the axial direction and 2-10 numbers in the radial direction.

5. The noise reduction valve according to claim 4, It is characterized in that The plate is spaced apart from the through hole of the cylinder along the axial direction.

6. The noise reduction valve according to claim 1, It is characterized in that The thickness of the plate is set in the range of 5-10 mm; the fixing section and the plate have the same outer diameter.

7. The noise reduction valve according to claim 2, It is characterized in that The included angle between the cylinder and the neck section is set to be an obtuse angle.

8. The noise reduction valve according to claim 1, It is characterized in that The through holes are set as circular through holes; and the spacing between the through holes is set to 2-10 mm.

9. The noise reduction valve according to claim 1, It is characterized in that Also included: two sets of sealing assemblies, a valve stem and a fixed shaft; Each set of sealing components includes a valve seat, a pressure ring and a spring; The valve seat is correspondingly sandwiched between: the first valve body and the valve core, and between the second valve body and the valve core; The valve core and the valve seat form a spherical seal; The pressure ring and the spring are correspondingly arranged in the grooves of the first valve body and the second valve body, respectively, and are located between the valve core and the first valve body, and between the valve core and the second valve body; The valve stem is located between the first valve body and the second valve body and is connected to the valve core for driving the valve core; the fixed shaft passes through between the first valve body and the second valve body and forms a fixed connection with the valve core.

10. The noise reduction valve according to any one of claims 1 to 9, It is characterized in that The noise attenuation internals are made using a 3D printing process.

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