Ball body of ball valve

Abstract

The utility model belongs to the technical field of ball valves, and particularly relates to a ball body of a ball valve, which comprises a ball body, a flow channel hole for fluid to pass through is arranged in the center of the ball body, one end of the flow channel hole is an inlet end, the other end of the flow channel hole is an outlet end, and a plurality of spiral rifling grooves are arranged on the inner wall of the flow channel hole in an annular array mode. A plurality of groups of defoaming channels are formed in the spiral rifling groove, one end, close to the direction of the inlet end, of each defoaming channel is an inlet, the other end of each defoaming channel is an outlet, the hole diameter of each outlet is smaller than that of each inlet, and the hole diameters of the inlets and the outlets in the groups of defoaming channels from the inlet end to the outlet end tend to be gradually reduced. The shape and the layout of the spiral rifling groove can improve the flowing stability of the fluid, and the defoaming channel shrinks and crushes large bubbles in the fluid step by step to enable the large bubbles to be dissolved in the liquid, so that the detection precision of the metering equipment on the fluid flow is improved, and the quality of subsequent chemical preparations or liquid blending is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of ball valves, in particular to a ball body of a ball valve. Background Art

[0002] A ball valve is a valve that controls the flow of fluid by rotating the ball. It has a compact structure, small fluid resistance, light and flexible operation, and good sealing performance. Ball valves are widely used in the petroleum, chemical, electric power, municipal and other industries, and are suitable for various occasions that require rapid opening and closing and flow regulation.

[0003] The existing ball valve is mainly composed of the following parts: valve body, ball, valve stem, seal, valve seat, etc., among which the ball is the core component of the ball valve, usually adopts a spherical structure, with a channel inside that is aligned with the pipeline. The ball rotates to open and close the pipeline. When the ball rotates 90 degrees, the channel is aligned with the pipeline to achieve a flow state; when the ball rotates another 90 degrees, the channel is not aligned with the pipeline, and the pipeline is cut off.

[0004] The ball valve ball in the current prior art has the following disadvantages: in the production of chemical preparations or beverages, the ball valve is installed between fluid pipelines, and the flow of the fluid needs to be accurately controlled when the fluid is transported or bottled. A large number of bubbles may exist in the fluid, and the presence of larger bubbles in the fluid seriously affects the detection accuracy of the metering equipment for the fluid flow, and thus seriously affects the quality of subsequent chemical preparations or liquid preparations; therefore, a ball valve ball is proposed to address the above problems. Utility Model Content

[0005] In order to make up for the shortcomings of the existing ball valve, a ball valve is proposed to solve the problem that in the production of chemical preparations or beverages, the ball valve is installed between fluid pipelines, and the flow of the fluid needs to be accurately controlled when the fluid is transported or bottled. A large number of bubbles may exist in the fluid, and the presence of larger bubbles in the fluid seriously affects the detection accuracy of the metering equipment for the fluid flow, which in turn seriously affects the quality of subsequent chemical preparations or liquid preparations.

[0006] The technical solution adopted by the utility model to solve its technical problem is: the ball body of a ball valve described in the utility model includes a ball body, a flow channel hole for fluid to pass through is opened in the center of the ball body, one end of the flow channel hole is an inlet end, and the other end is an outlet end, and a plurality of spiral rifling grooves are opened in a ring array on the inner wall of the flow channel hole.

[0007] Preferably, an array of defoaming channels is provided inside the spiral rifling groove, one end of the defoaming channel close to the entry end is an inlet, and the other end of the defoaming channel is an outlet, and the outlet aperture is smaller than the inlet.

[0008] Preferably, the inlet and outlet apertures in the array of defoaming channels from the inlet end to the outlet end tend to gradually decrease.

[0009] Preferably, a valve stem is fixedly disposed at the center of the top end of the sphere.

[0010] Preferably, the surface of the sphere is provided with an elastic plastic wear-resistant layer, and the elastic plastic wear-resistant layer is made of polyvinyl chloride and has a thickness between 0.15 and 0.5 mm.

[0011] Beneficial effects of the utility model:

[0012] The utility model provides a ball valve ball, and a fluid enters into a spiral rifling groove opened on the inner wall of a flow channel hole and flows. Under the fluid dynamics effect of the fluid, the spiral rifling groove can guide the fluid to flow along a specific path, and the shape and layout of the spiral rifling groove can improve the flow stability of the fluid and improve the fluid efficiency. After the bubbles enter the defoaming channel, they will be broken or dispersed into smaller bubbles, and the smaller bubbles will then enter the downstream defoaming channel and be broken step by step until the bubbles disappear, thereby breaking into smaller fragments or directly dissolving in the liquid, thereby ensuring the detection accuracy of the fluid flow rate of the metering equipment during fluid transportation and ensuring the quality of subsequent chemical preparations or liquid preparations. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0014] Figure 1 It is a three-dimensional picture of the whole;

[0015] Figure 2 It is a side sectional view of the whole;

[0016] Figure 3 It is a cross-sectional view of the location of the spiral rifling groove and the defoaming channel;

[0017] Legend:

[0018] 1. sphere; 101. flow channel hole; 102. inlet end; 103. outlet end; 2. spiral rifling groove; 3. defoaming channel; 4. inlet; 5. outlet; 6. valve stem; 7. elastic plastic wear-resistant layer. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Specific examples are given below.

[0021] See also Figure 1-Figure 3 The utility model discloses a ball valve ball, comprising a ball 1, wherein a flow channel hole 101 for fluid to pass through is provided at the center of the ball 1, wherein one end of the flow channel hole 101 is an inlet end 102, and the other end is an outlet end 103, and a plurality of spiral rifling grooves 2 are provided in an annular array on the inner wall of the flow channel hole 101;

[0022] An array of defoaming channels 3 is provided inside the spiral rifling groove 2, one end of the defoaming channel 3 close to the entry end 102 is the entry 4, and the other end of the defoaming channel 3 is the exit 5, the aperture of the exit 5 is smaller than the entry 4, and the apertures of the entry 4 and the exit 5 in the array of defoaming channels 3 from the entry end 102 to the exit end 103 tend to gradually decrease, and a valve stem 6 is fixedly provided at the top center of the sphere 1. During operation, when the ball valve is opened, the fluid enters from the entry end 102 of the flow channel hole 101, and then is discharged from the outlet end 103, and the fluid enters the spiral rifling groove 2 opened on the inner wall of the flow channel hole 101 and flows. Under the fluid dynamics effect of the fluid, the spiral rifling groove 2 can guide the fluid to flow along a specific path, thereby improving the flow efficiency and speed of the fluid, and the shape and layout of the spiral rifling groove 2 can improve the flow stability of the fluid, making the fluid more stable when passing through the channel, and the bubbles contained in the fluid will seriously affect the metering device in the pipeline. The metering accuracy of the device is improved. The fluid flow in the spiral rifling groove 2 will produce a spiral motion trajectory, which pushes the bubbles in the fluid to the defoaming channel 3, where they will be captured by the defoaming channel 3. After the bubbles enter the defoaming channel 3 through the inlet 4, they are discharged from the outlet 5. Due to the speed change and pressure difference of the fluid in the defoaming channel 3, and the aperture of the outlet 5 is smaller than the inlet 4, the bubbles will be broken or dispersed into smaller bubbles, and the smaller bubbles will enter the downstream defoaming channel 3 and be broken step by step until the bubbles disappear. Since the diameter of the defoaming channel 3 is much smaller than the flow channel hole 101, this can ensure that the bubbles are subjected to sufficient shear force and pressure when passing through the defoaming channel 3, thereby breaking into smaller fragments or directly dissolving in the liquid. Since the defoaming channels 3 are numerous and evenly distributed, the dissolution process of the bubbles is accelerated. By eliminating bubbles, the detection accuracy of the flow rate of the metering equipment can be ensured, thereby ensuring the quality and accuracy of the subsequent fluid proportioning.

[0023] Furthermore, an elastic plastic wear-resistant layer 7 is provided on the surface of the ball 1, and the elastic plastic wear-resistant layer 7 is made of polyvinyl chloride with a thickness of 0.15 to 0.5 mm. During operation, the ball 1 in the ball valve will frequently contact and rub against the valve seat during operation. The addition of the polyvinyl chloride wear-resistant layer can significantly reduce the wear caused by such friction, thereby extending the service life of the ball 1 and the entire ball valve. The elastic plastic wear-resistant layer 7 can ensure that the ball 1 can still maintain a good roundness after long-term use, thereby maintaining a good sealing effect, making the ball 1 less susceptible to damage, reducing the frequency of repair and replacement of the ball valve, and reducing maintenance costs. Polyvinyl chloride has good chemical corrosion resistance and can protect the ball 1 from being corroded by chemicals in the fluid, thereby ensuring the stable operation of the ball valve in a variety of chemical environments. At the same time, the elastic plastic wear-resistant layer 7 can reduce the resistance of the ball 1 during rotation, making the operation of the ball valve more convenient and flexible.

[0024] Working principle: When the ball valve is opened, the fluid enters from the inlet end 102 of the flow channel hole 101 and is discharged from the outlet end 103. The fluid enters the spiral rifling groove 2 opened on the inner wall of the flow channel hole 101 and flows. Under the fluid dynamics effect of the fluid, the spiral rifling groove 2 can guide the fluid to flow along a specific path, thereby improving the flow efficiency and speed of the fluid. In addition, the shape and layout of the spiral rifling groove 2 can improve the flow stability of the fluid, thereby making the fluid more stable when passing through the channel. The bubbles contained in the fluid will seriously affect the metering accuracy of the metering equipment in the pipeline. The fluid flow in the spiral rifling groove 2 will produce a spiral motion trajectory, which will push the bubbles in the fluid to the defoaming channel 3, where they will be captured. After the bubbles enter the defoaming channel 3 through the inlet 4, they are discharged from the outlet 5. Due to the speed change and pressure difference of the fluid in the defoaming channel 3, and the smaller aperture of the outlet 5 than the inlet 4, the bubbles will be broken or dispersed into smaller bubbles, and the smaller bubbles will then enter the downstream defoaming channel 3 and be broken step by step until the bubbles disappear. Since the diameter of the defoaming channel 3 is much smaller than the flow channel hole 101, it can ensure that the bubbles are subjected to sufficient shear force and pressure when passing through the defoaming channel 3, so as to be broken into smaller fragments or directly dissolved in the liquid. Since the defoaming channels 3 are numerous and evenly distributed, the dissolution process of the bubbles is accelerated. By eliminating bubbles, the detection accuracy of the flow rate by the metering equipment can be ensured, thereby ensuring the quality and accuracy of the subsequent fluid proportioning;

[0025] The ball 1 in the ball valve will frequently contact and rub against the valve seat during operation. The addition of the polyvinyl chloride wear-resistant layer can significantly reduce the wear caused by this friction, thereby extending the service life of the ball 1 and the entire ball valve, and the elastic plastic wear-resistant layer 7 can ensure that the ball 1 can still maintain a good roundness after long-term use, thereby maintaining a good sealing effect, making the ball 1 not easily damaged, reducing the frequency of repair and replacement of the ball valve, and reducing maintenance costs. Polyvinyl chloride has good chemical corrosion resistance and can protect the ball 1 from erosion by chemicals in the fluid, thereby ensuring the stable operation of the ball valve in a variety of chemical environments. At the same time, the elastic plastic wear-resistant layer 7 can reduce the resistance of the ball 1 when it rotates, making the operation of the ball valve more convenient and flexible.

[0026] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0027] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A ball valve body, comprising a ball body (1), characterized in that: A flow channel hole (101) for fluid to pass through is provided at the center of the sphere (1), one end of the flow channel hole (101) is an inlet end (102), and the other end is an outlet end (103), and a plurality of spiral rifling grooves (2) are provided in a circular array on the inner wall of the flow channel hole (101).

2. A ball valve ball according to claim 1, characterized in that: An array of defoaming channels (3) is provided inside the spiral rifling groove (2), one end of the defoaming channel (3) close to the entry end (102) is an inlet (4), and the other end of the defoaming channel (3) is an outlet (5), and the aperture of the outlet (5) is smaller than that of the inlet (4).

3. A ball valve ball according to claim 1, characterized in that: The apertures of the inlet (4) and the outlet (5) in the array of defoaming channels (3) located from the inlet end (102) to the outlet end (103) tend to gradually decrease.

4. A ball valve ball according to claim 1, characterized in that: A valve stem (6) is fixedly arranged at the center of the top end of the sphere (1).

5. The ball valve ball according to claim 1, characterized in that: The surface of the sphere (1) is provided with an elastic plastic wear-resistant layer (7), and the elastic plastic wear-resistant layer (7) is made of polyvinyl chloride and has a thickness between 0.15 and 0.5 mm.

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