V-shaped sphere with noise reduction function

Abstract

The utility model discloses a V-shaped sphere with a noise reduction function, which is characterized by comprising connecting parts which are distributed up and down, a shielding part which is positioned on one side of the two connecting parts and is connected with the two connecting parts, and a plurality of noise reduction plates which are arranged between the two connecting parts, the multiple noise reduction plates are arranged in parallel and are sequentially arranged in the direction perpendicular to the shielding part, multiple liquid through holes are formed in the multiple noise reduction plates, and each noise reduction plate comprises an upper straight plate, a bent connecting plate and a lower straight plate which are sequentially distributed in the vertical direction; the upper straight plate and the lower straight plate which are connected with the same bent connecting plate are staggered and arranged in parallel, and the problem that noise exists in the ball valve opening process in the prior art is solved.

Description

Technical Field

[0001] This utility model relates to the field of ball valve technology, and more specifically to a V-shaped ball with noise reduction function. Background Technology

[0002] The ball is one of the main components of a ball valve. As the opening and closing element of the ball valve, it is spherically fitted with the valve seat. The ball can rotate 90 degrees around the valve stem as the pivot point to open and close the flow channel and prevent the flow of the medium in the flow channel.

[0003] In a traditional ball valve, during the opening process, the cross-section for liquid flow between the ball and the valve body gradually increases while the water inflow remains constant. Initially, the cross-section for liquid flow is small, resulting in high liquid velocity and pressure through that cross-section. Conversely, during the closing process, the cross-section for liquid flow between the ball and the valve body gradually decreases while the water inflow remains constant. As the cross-section for liquid flow gradually shrinks, the liquid velocity and pressure through that cross-section increase. Noise is generated in both of these scenarios. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a V-shaped sphere that can have noise reduction function during the opening or closing phase.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a V-shaped sphere with noise reduction function, comprising connecting parts distributed vertically, a shielding part located on one side of the two connecting parts and connected to both connecting parts, and multiple noise reduction plates disposed between the two connecting parts. The multiple noise reduction plates are arranged parallel to each other and sequentially arranged in a direction perpendicular to the shielding part. Multiple liquid passage holes are provided on the multiple noise reduction plates. The multiple noise reduction plates include an upper straight plate, a curved connecting plate, and a lower straight plate sequentially distributed in a vertical direction. The upper straight plate and the lower straight plate connected to the same curved connecting plate are staggered and arranged in parallel.

[0006] As a further improvement of this utility model, the shielding part is provided with a connecting rod for connecting multiple noise reduction plates in series.

[0007] As a further improvement of this utility model, several reinforcing ribs are provided on both sides of the plurality of bending connecting plates.

[0008] As a further improvement of this utility model, the liquid passage holes on the three adjacent noise reduction plates are all staggered.

[0009] As a further improvement of this utility model, the number of noise reduction plates is three.

[0010] The beneficial effects of this utility model are as follows: The design of multiple noise reduction plates allows the medium to rapidly throttle, diffuse, and expand when flowing through the liquid passages on each noise reduction plate, making the medium flow velocity more gradual and reducing the noise generated by the medium flow. This overcomes the defect in the prior art where ball valves generate loud noise during opening and closing due to small liquid passages, high medium flow velocity, and high pressure. Compared to making the noise reduction plates straight vertically, the design of offset upper and lower straight plates allows for differences in the rate of change of the medium flow between adjacent upper and lower straight plates during the opening and closing of the ball valve. This difference in the medium flow velocity between adjacent noise reduction plates further alters the flow velocity and direction of the medium between adjacent noise reduction plates, resulting in a smoother medium flow and reduced noise. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0012] Figure 2 This is a front sectional view of the present invention;

[0013] Figure 3 This is a perspective view of three adjacent noise reduction plates in this utility model.

[0014] Reference numerals: 1. Connecting part; 2. Shielding part; 3. Noise reduction plate; 31. Upper straight plate; 32. Bending connecting plate; 33. Lower straight plate; 34. Reinforcing rib; 4. Liquid passage hole; 5. Connecting rod. Detailed Implementation

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Identical components are indicated by the same reference numerals.

[0016] Reference Figures 1 to 3 As shown, a V-shaped sphere with noise reduction function in this embodiment includes a connecting part 1 distributed vertically, a shielding part 2 located on one side of the two connecting parts 1 and connected to both connecting parts 1, and a plurality of noise reduction plates 3 disposed between the two connecting parts 1. The two connecting parts 1 are integrally formed with the shielding part 2, and the three of them enclose a flow cavity for accommodating the plurality of noise reduction plates 3. The plurality of noise reduction plates 3 each include an upper straight plate 31, a curved connecting plate 32 and a lower straight plate 33 connected in sequence. The upper straight plate 31 and the lower straight plate 33 connected to the same curved connecting plate 32 are staggered and arranged in parallel. A plurality of liquid passage holes 4 are provided on the plurality of noise reduction plates 3. In order to minimize the impact on the flow rate of the medium, the number of noise reduction plates 3 is set to three. The upper and lower ends of the three noise reduction plates 3 are respectively fixedly connected to the opposite surfaces of the two connecting parts 1. The three noise reduction plates 3 are arranged in parallel to each other and arranged in sequence along a direction perpendicular to the shielding part 1.

[0017] When this invention is applied to a ball valve and is in the closed state, the shielding part 2 is in close contact with the valve seat and blocks the flow of medium, and the three noise-reducing plates 3 are all perpendicular to the axis of the valve seat. During the opening process of the ball valve, the shielding part 2 and the valve seat are partially separated, and the liquid passage formed gradually increases in size. The angle between the three noise-reducing plates 3 and the axis of the valve seat gradually decreases. When the liquid passage is initially small, the medium flows through the liquid passage holes 4 on the three noise-reducing plates 3 and then through the liquid passage. The medium flowing through the liquid passage holes 4 will rapidly throttle, diffuse, and expand, thereby decomposing the medium pressure and reducing the medium flow rate. At the same time, due to the misalignment of the upper straight plate 31 and the lower straight plate 33, there is a difference in the flow rate of the medium flowing into the adjacent upper straight plate 31 and the flow rate flowing into the adjacent lower straight plate 33, thereby causing a difference in the medium flow rate between the adjacent noise-reducing plates 3. The difference between the upper and lower parts further alters the flow speed and direction of the medium between two adjacent noise-reducing plates 3, resulting in a gentler flow of the medium and reduced noise. When the size of the liquid inlet approaches the size of the valve seat cavity, the three noise-reducing plates 3 become nearly parallel to the flow direction of the medium until the shielding part 2 is completely separated from the valve seat. All three noise-reducing plates 3 are parallel to the flow direction of the medium, allowing the medium to flow between adjacent noise-reducing plates 3. During the closing process of the ball valve, the liquid inlet formed between the shielding part 2 and the valve seat decreases in size, and the angle between the three noise-reducing plates 3 and the flow direction of the medium gradually increases. The medium flows through the liquid inlet 4 and the liquid outlet on the three noise-reducing plates 3 in succession. The medium flowing through the liquid inlet 4 will rapidly throttle, diffuse, and expand, thereby decomposing the medium pressure and reducing the medium flow rate until the shielding part 2 completely blocks the valve seat.

[0018] The design of multiple noise reduction plates 3 allows the medium to rapidly throttle, diffuse, and expand when flowing through the liquid passages 4 on each noise reduction plate 3, making the medium flow velocity more moderate and reducing the noise generated by the medium flow. This compensates for the defect in the existing ball valve that generates loud noise during opening and closing due to the small liquid passage, high medium flow velocity, and high pressure. Compared with the design of offsetting the upper straight plate 31 and the lower straight plate 33, making the noise reduction plate 3 a straight vertical plate design allows the flow rate of the medium flowing into the adjacent upper straight plate 31 and the adjacent lower straight plate 33 to be different during the opening and closing of the ball valve. This difference in the flow velocity of the medium between adjacent noise reduction plates 3 further changes the flow velocity and direction of the medium between two adjacent noise reduction plates 3, resulting in a smoother medium flow and reduced noise.

[0019] As one specific implementation method of the improvement, refer to Figure 1 and Figure 2As shown, the shielding part 2 is provided with a connecting rod 5 for sequentially connecting multiple noise reduction plates 3 together. Through holes are opened in the middle of the multiple noise reduction plates 3, and a connecting rod 5 is used to sequentially pass through the through holes so that the multiple noise reduction plates 3 are snapped or welded to the connecting rod 5. This design is more convenient for the assembly and disassembly of the noise reduction plates 3 compared to the previous embodiment where the two ends of the noise reduction plates 3 are fixedly connected to the two connecting parts 1 respectively. At the same time, when the noise reduction plates 3 are impacted by the medium, the middle part of the noise reduction plates 3 is the first to be stressed and the stress is greater. Also, when the noise reduction plates 3 are parallel to the medium flow direction, the medium flows quickly between two adjacent noise reduction plates 3, which will cause the two noise reduction plates 3 to deform towards each other. The connecting rod 5 indirectly improves the structural strength of the noise reduction plates 3 and slows down the deformation of the noise reduction plates 3.

[0020] As one specific implementation method of the improvement, refer to Figures 1 to 3 As shown, several reinforcing ribs 34 are provided on both sides of the multiple curved connecting plates 32. The reinforcing ribs 34 do not interfere with the liquid passage holes 4. The reinforcing ribs 34 on both sides of the same curved connecting plate 32 are respectively positioned at the connection between the upper straight plate 31 and the curved connecting plate 32 and the connection between the lower straight plate 33 and the curved connecting plate 32. This design can effectively improve the bending resistance of the upper straight plate 31 and the lower straight plate 33 when connected to the curved connecting plate 32, improve the structural strength of the connection, and indirectly extend the service life of the noise reduction plate 3.

[0021] As one specific implementation method of the improvement, refer to Figures 1 to 3 As shown, the liquid passage holes 4 on the three adjacent noise reduction plates 3 are all staggered, meaning that the positions of the liquid passage holes 4 on the three noise reduction plates 3 are different from each other. During the opening and closing of the ball valve, the medium flows through the liquid passage holes 4 on each noise reduction plate 3, and the flow direction of the medium changes continuously, thereby further reducing the flow velocity and reducing the noise generated by the medium. When the ball valve is in the open state, the flow direction of the medium is parallel to the noise reduction plate 3. The medium on both sides of the noise reduction plate 3 in the middle position has a pressure difference because the positions of the liquid passage holes 4 on the two sides of the noise reduction plate 3 are staggered. Therefore, the medium on both sides of the noise reduction plate 3 in the middle position will flow through the liquid passage holes 4 of the noise reduction plate 3 in the middle position faster due to the pressure difference. This design can also change the flow direction and flow velocity of the medium, making the medium flow velocity tend to be gentler, further reducing the change in the overall flow velocity of the medium, slowing down the erosion of the noise reduction plate 3 by the medium, and indirectly extending the service life of the noise reduction plate 3.

[0022] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A V-shaped ball having a noise reduction function, characterized by: The utility model relates to a noise reduction device, including have up and down distribution connecting portion (1), located two connecting portion (1) one side and with two connecting portion (1) all link to each other shield (2) and multiple setting between two connecting portion (1) are reduced to noise board (3), multiple the noise reduction board (3) all set up parallel with each other and along the direction perpendicular to shield (2) sequentially arrange, multiple the noise reduction board (3) all are provided with multiple liquid passage (4), multiple the noise reduction board (3) all include have along vertical direction sequentially distribution upper straight board (31), curved link board (32) and lower straight board (33), with same the curved link board (32) link to each other upper straight board (31) and lower straight board (33) staggered and parallelly arranged; The shield (2) is provided with a connecting rod (5) for sequentially connecting the plurality of noise reduction boards (3) together. The two sides of the plurality of curved link boards (32) are provided with a plurality of reinforcing ribs (34).

2. The V-shaped ball with noise reduction function according to claim 1, characterized in that: The liquid passages (4) on the adjacent three noise reduction boards (3) are staggered with each other.

3. The V-shaped ball with noise reduction function according to claim 1 or 2, characterized in that: The number of the noise reduction boards (3) is three.

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