Flow regulating valve seat and flow regulating ball valve

Abstract

The utility model relates to the technical field of pipeline connection, and discloses a flow adjusting valve seat and a flow adjusting ball valve.The flow adjusting valve seat comprises a first valve seat body, a flow adjusting hole and a first annular groove, and the flow adjusting hole is formed in the inner side of the first valve seat body; the first annular groove is formed in the outer side of the first valve seat body, and the first annular groove is suitable for containing a sealing ring; wherein the first annular groove is provided with a first matching surface and a second matching surface which are intersected, the first matching surface and the second matching surface are both extruded with the sealing ring, and the included angle alpha between the first matching surface and the second matching surface is larger than 0 degree and smaller than 90 degrees. The technical problems that when the valve seat and the sealing ring are in sealing fit, the filling rate of the valve seat and the sealing ring is low, the sealing performance is poor, and liquid leakage is prone to occurring are solved, and the beneficial effects that the filling rate and the sealing performance of the valve seat and the sealing ring are improved, and the reliability of the ball valve is improved are achieved.

Description

Technical Field

[0001] This application relates to the field of pipeline connection technology, and in particular to a flow regulating valve seat and a flow regulating ball valve. Background Technology

[0002] Ball valves, as a commonly used shut-off valve, are widely used in many fields such as petroleum, chemical, power, metallurgy, and construction. Their function is to conduct, cut off, or regulate the flow of fluid in the pipeline by rotating the valve core.

[0003] A ball valve consists of a valve seat and a sealing ring. The sealing ring abuts against the valve seat to prevent leakage of the medium. In related technologies, when the valve seat and the sealing ring are sealed together, the filling rate of the valve seat and the sealing ring is low, the sealing performance is poor, and liquid leakage is likely to occur. Utility Model Content

[0004] This application provides a flow regulating valve seat and a flow regulating ball valve, which solves the technical problem that when the valve seat and the sealing ring are sealed together, the filling rate of the valve seat and the sealing ring is low, the sealing performance is poor, and liquid leakage is easy to occur. It achieves the beneficial effects of improving the filling rate and sealing performance of the valve seat and the sealing ring, as well as improving the reliability of the ball valve.

[0005] To achieve the above objectives, the main technical solutions adopted in this application include:

[0006] In a first aspect, embodiments of this application provide a flow regulating valve seat, which includes a first valve seat body, a flow regulating hole, and a first annular groove. The flow regulating hole is disposed on the inner side of the first valve seat body; the first annular groove is disposed on the outer side of the first valve seat body and is adapted to accommodate a sealing ring; wherein, the first annular groove has an intersecting first mating surface and a second mating surface, both of which are pressed against the sealing ring, and the included angle between the first mating surface and the second mating surface is α, satisfying 0°<α<90°.

[0007] The flow regulating valve seat proposed in this application has an included angle α between the first mating surface and the second mating surface, satisfying 0° < α < 90°. This allows the first and second mating surfaces to more fully compress the sealing ring, increasing the filling rate of the sealing ring in the first annular groove, reducing the sealing gap between the sealing ring and the flow regulating valve seat, enhancing the sealing effect between the flow regulating valve seat and the valve body, and reducing the probability of leakage between the flow regulating valve seat and the valve body.

[0008] Optionally, the included angle α satisfies: 35°≤α≤45°.

[0009] The included angle α satisfies 35°≤α≤45°. This allows the first and second mating surfaces to apply a more balanced and effective compressive force to the sealing ring, enabling it to deform appropriately under pressure. The internal stress distribution is more reasonable under pressure, preventing localized stress concentration and premature damage. This ensures sufficient sealing force between the sealing ring and the first annular groove while preventing damage from excessive compression, extending the sealing ring's service life and improving sealing reliability.

[0010] Optionally, the first mating surface extends radially along the first valve seat body.

[0011] The first mating surface extends radially along the first valve seat body, ensuring that when the sealing ring is squeezed by the first mating surface, it only forms a force in the axial direction of the flow regulating hole on the first valve seat body, thereby ensuring that the first end face of the first valve seat body can fit more tightly with the valve core.

[0012] Optionally, along the radial direction of the flow regulating hole, the width of the first mating surface is smaller than the wire diameter of the sealing ring.

[0013] Along the radial direction of the flow regulating hole, the width of the first mating surface is smaller than the wire diameter of the sealing ring. This can improve the filling rate of the sealing ring in the first annular groove and improve the sealing effect between the flow regulating valve seat and the valve body.

[0014] Optionally, along the axial direction of the flow regulating orifice, the first valve seat body has a first end face for sealing and engaging with the valve core and a second end face disposed opposite to the first end face, the second mating surface extending to the second end face.

[0015] This allows for sealing between the valve body and the flow regulating valve seat in both the axial and radial directions of the sealing ring, further reducing the likelihood of leakage between the valve body and the flow regulating valve seat and improving the overall sealing performance of the ball valve.

[0016] Optionally, along the axial direction of the flow regulating orifice, the projection of the flow regulating orifice includes two arc curves, a first superior arc line and a second superior arc line. The two arc curves are symmetrically arranged about a first center line, and the first center line is perpendicular to the axial direction of the flow regulating orifice. The two arc curves convex towards each other, and each arc curve has a first end close to the first center line and a second end far from the first center line. The first superior arc line is symmetrically arranged about the first center line and connects the first ends of the two arc curves. The opening of the second superior arc line is opposite to the opening of the first superior arc line and connects the second ends of the two arc curves.

[0017] When a ball valve equipped with a flow regulating valve seat is opened, the valve core rotates from the side where the first optimal arc is located to the side where the second optimal arc is located. When the valve core opening is small, the flow area increases slowly as the opening increases. When the valve core opening is large, the flow area increases rapidly within a certain range as the opening increases, making it easy for the ball valve to achieve equal percentage characteristics with high regulation accuracy.

[0018] Optionally, the flow regulating valve seat further includes a first positioning part, which is disposed on the first valve seat body and protrudes from the outer peripheral surface of the first valve seat body.

[0019] The engagement of the first positioning part with the first groove provides precise positioning and fixation of the flow regulating valve seat within the valve body, restricting the radial and circumferential movement of the first valve seat body and enabling the first valve seat body to be stably maintained in the predetermined position.

[0020] Secondly, embodiments of this application also provide a flow regulating ball valve, including any flow regulating valve seat in embodiments of this application.

[0021] The flow regulating ball valve proposed in this application embodiment has an included angle α between the first mating surface and the second mating surface, satisfying 0° < α < 90°. This allows one end of the sealing ring to abut against the first mating surface and the second mating surface to abut against the other end of the sealing ring along the thickness direction of the sealing ring. The first and second mating surfaces can more fully compress the sealing ring, increasing the filling rate of the sealing ring in the first annular groove, reducing the sealing gap between the sealing ring and the flow regulating valve seat, enhancing the sealing effect between the flow regulating valve seat and the valve body, and reducing the probability of leakage between the flow regulating valve seat and the valve body.

[0022] Optionally, the flow regulating ball valve also includes a mounting seat and a valve core, with the valve core disposed between the mounting seat and the flow regulating seat along the axial direction of the flow regulating orifice.

[0023] The ball valve also includes a mounting seat and a valve core. Along the axial direction of the flow regulating orifice, the mounting seat and the flow regulating seat are located at both ends of the valve core. Both the mounting seat and the flow regulating seat are sealed to the valve core. When the fluid medium flows through the flow regulating orifice, the mounting seat and the flow regulating seat can effectively prevent fluid leakage, thus improving the sealing reliability of the ball valve.

[0024] Optionally, the valve seat includes a second valve seat body, a through hole, and a second annular groove. The through hole is located on the inner side of the second valve seat body, and the second annular groove is located on the outer side of the second valve seat body. The second annular groove is adapted to accommodate a sealing ring. The second annular groove has intersecting third and fourth mating surfaces. Both the third and fourth mating surfaces are pressed against the sealing ring. The included angle between the third and fourth mating surfaces is β, which satisfies the condition: 0° < β < 90°.

[0025] Both the third and fourth mating surfaces are pressed against the sealing ring, and the included angle between the third and fourth mating surfaces is β, satisfying: 0°<β<90°. In this way, the third and fourth mating surfaces can compress the sealing ring more fully, improve the filling rate of the sealing ring in the second annular groove, reduce the sealing gap between the sealing ring and the valve seat, enhance the sealing effect between the valve seat and the valve body, and reduce the probability of leakage between the valve seat and the valve body. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the flow regulating ball valve provided in an embodiment of this application;

[0028] Figure 2 for Figure 1 Top view;

[0029] Figure 3 for Figure 2 Sectional view in the AA direction;

[0030] Figure 4 This is a schematic diagram of the structure of the flow regulating valve seat provided in the embodiments of this application;

[0031] Figure 5 for Figure 4 The main view;

[0032] Figure 6 for Figure 4 Top view;

[0033] Figure 7 for Figure 6 Cross-sectional view in the BB direction;

[0034] Figure 8 for Figure 4 A bottom view;

[0035] Figure 9 A schematic diagram of the structure of a flow regulating valve seat according to another embodiment of this application.

[0036] [Explanation of Labels in the Attached Image]

[0037] Flow regulating ball valve 1000;

[0038] Valve body 100; First groove 101;

[0039] Valve core 110;

[0040] First limiting component 120;

[0041] Flow regulating valve seat 200;

[0042] First valve seat body 210; First end face 211; Second end face 212;

[0043] Flow regulating orifice 220; arc curve 221; first end 221A; second end 221B; first superior arc 222; second superior arc 223;

[0044] First annular groove 230; first mating surface 231; second mating surface 232;

[0045] 240 sealing ring;

[0046] First positioning section 250;

[0047] Install valve seat 300;

[0048] Second valve seat body 310;

[0049] 320 through hole;

[0050] Second annular groove 330; Third mating surface 331; Fourth mating surface 332;

[0051] The axial direction of the flow regulating orifice is X; the first centerline is Y. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0053] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0054] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0055] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0056] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0057] In this application, "multiple" refers to two or more (including two), and similarly, "multiple groups" refers to two or more (including two), and "multiple pieces" refers to two or more (including two).

[0058] Ball valves, as a commonly used shut-off valve, are widely used in many fields such as petroleum, chemical, power, metallurgy, and construction. Their function is to conduct, cut off, or regulate the flow of fluid in the pipeline by rotating the valve core.

[0059] A ball valve consists of a valve seat and a flow regulating orifice plate. The flow regulating orifice plate and the valve seat are separate structures. The rotation of the valve core works in conjunction with the valve seat and the flow regulating orifice plate to achieve proportional or linear flow regulation. The separate structure of the valve seat and the flow regulating orifice plate is relatively complex and has low assembly efficiency. There is a large gap between the valve core and the flow regulating orifice plate. During the flow process, the medium will enter the gap first, which can easily lead to a decrease in the flow regulation accuracy of the ball valve.

[0060] In related technologies, ball valves also include a sealing ring that abuts against the valve seat to prevent media leakage. When the valve seat and the sealing ring are sealed together, the filling rate of the valve seat and the sealing ring is low, resulting in poor sealing performance and easy liquid leakage.

[0061] In view of this, this application proposes a flow regulating valve seat and a flow regulating ball valve. The flow regulating valve seat includes a first valve seat body, a flow regulating hole, and a first annular groove. The flow regulating hole is disposed on the inner side of the first valve seat body; the first annular groove is disposed on the outer side of the first valve seat body and is adapted to accommodate a sealing ring; wherein, the first annular groove has an intersecting first mating surface and a second mating surface, both of which are pressed against the sealing ring, and the included angle between the first mating surface and the second mating surface is α, satisfying 0° < α < 90°.

[0062] In the above scheme, the included angle between the first mating surface and the second mating surface is α, which satisfies 0°<α<90°. In this way, the first mating surface and the second mating surface can compress the sealing ring more fully, improve the filling rate of the sealing ring in the first annular groove, reduce the sealing gap between the sealing ring and the flow regulating valve seat, enhance the sealing effect between the flow regulating valve seat and the valve body, and reduce the probability of leakage between the flow regulating valve seat and the valve body.

[0063] In some embodiments, the flow regulating ball valve can be used in pipelines for liquid fluid media such as water and oil, or in pipelines for gaseous fluid media such as natural gas.

[0064] The flow regulating valve seat disclosed in this application can be used in two-way ball valves, three-way ball valves, four-way ball valves, etc.

[0065] For ease of explanation, the following embodiments will be described using a flow regulating valve seat according to an embodiment of this application as an example.

[0066] Figure 1 This is a schematic diagram of the flow regulating ball valve provided in an embodiment of this application; Figure 2 for Figure 1 Top view; Figure 3 for Figure 2 Sectional view in the AA direction; Figure 4 This is a schematic diagram of the structure of the flow regulating valve seat provided in the embodiments of this application; Figure 5 for Figure 4 The main view; Figure 6 for Figure 4 Top view; Figure 7 for Figure 6 Cross-sectional view in the BB direction; Figure 8 for Figure 4 A bottom view; Figure 9 A schematic diagram of the structure of a flow regulating valve seat according to another embodiment of this application.

[0067] Please refer to Figures 1 to 4In this embodiment, the flow regulating valve seat 200 includes a first valve seat body 210, a flow regulating hole 220, and a first annular groove 230. The flow regulating hole 220 is disposed on the inner side of the first valve seat body 210; the first annular groove 230 is disposed on the outer side of the first valve seat body 210 and is adapted to accommodate the sealing ring 240. The first annular groove 230 has intersecting first mating surfaces 231 and second mating surfaces 232. Both the first mating surfaces 231 and the second mating surfaces 232 are pressed against the sealing ring 240, and the included angle between the first mating surfaces 231 and the second mating surfaces 232 is α, which satisfies 0° < α < 90°.

[0068] For example, in this embodiment, the included angle α can be 5°, 10°, 15°, 25°, 40°, 50°, 60°, 70°, 80° or 85°, etc.

[0069] As its name suggests, the flow regulating orifice 220 is used to regulate the flow rate of the fluid medium passing through the flow regulating valve seat 200. The flow regulating orifice 220 has the function of flow regulation. The flow regulating orifice 220 is located inside the first valve seat body 210. For example, the flow regulating orifice 220 can penetrate the first valve seat body 210, allowing the fluid medium to pass through it.

[0070] The flow regulating valve seat 200 also includes a first annular groove 230, which can be disposed on the outer peripheral surface of the first valve seat body 210. The first annular groove 230 is suitable for accommodating the sealing ring 240. Since the flow regulating valve seat 200 can be disposed inside the valve body 100 of the ball valve, the sealing ring 240 can be disposed between the valve body 100 and the flow regulating valve seat 200 to prevent liquid from flowing between the valve body 100 and the flow regulating valve seat 200, thereby forming a sealing effect between the valve body 100 and the flow regulating valve seat 200.

[0071] The first annular groove 230 has an intersecting first mating surface 231 and a second mating surface 232. Both the first mating surface 231 and the second mating surface 232 are pressed against the sealing ring 240. Since the sealing ring 240 is located between the flow regulating valve seat 200 and the valve body 100, the sealing ring 240 will also be pressed against the valve body 100. The included angle between the first mating surface 231 and the second mating surface 232 is α, which satisfies 0°<α<90°. That is to say, along the axial direction X of the flow regulating hole, the first mating surface 231 and the second mating surface 232 are inclined and are not perpendicular to each other. For example, the first mating surface 231 can be perpendicular to the axial direction X of the flow regulating hole, and the second mating surface 232 can be inclined relative to the axial direction X of the flow regulating hole. Along the thickness direction of the sealing ring 240, one end of the sealing ring 240 can abut against the first mating surface 231, and the second mating surface 232 can abut against the other end of the sealing ring 240. In this way, the first mating surface 231 and the second mating surface 232 can more fully compress the sealing ring 240, improve the filling rate of the sealing ring 240 in the first annular groove 230, reduce the sealing gap between the sealing ring 240 and the flow regulating valve seat 200, enhance the sealing effect between the flow regulating valve seat 200 and the valve body 100, and reduce the probability of leakage between the flow regulating valve seat 200 and the valve body 100.

[0072] Please refer to Figures 1 to 8 In this embodiment, the included angle α satisfies: 35°≤α≤45°.

[0073] For example, in this embodiment, the included angle α can be 35°, 38°, 40°, 42° or 45°, etc.

[0074] The included angle α between the first mating surface 231 and the second mating surface 232 satisfies: 35°≤α≤45°. This allows the first mating surface 231 and the second mating surface 232 to apply a more balanced and effective compressive force to the sealing ring 240, enabling the sealing ring 240 to undergo appropriate deformation under compression. When the sealing ring 240 is compressed, the internal stress distribution is more reasonable, avoiding localized stress concentration that could lead to premature damage. This ensures sufficient sealing force between the sealing ring 240 and the first annular groove 230 while preventing damage to the sealing ring 240 due to excessive compression, thus extending the service life of the sealing ring 240 and improving the reliability of the seal.

[0075] Moreover, the included angle α satisfies the range of 35°≤α≤45°, which makes it easier to install the sealing ring 240 in the first annular groove 230. On the one hand, the sealing ring 240 will not be difficult to insert due to the included angle being too small, and on the other hand, the filling rate between the sealing ring 240 and the flow regulating valve seat 200 will not be low due to the included angle being too large.

[0076] Please refer to Figures 1 to 8 In this embodiment, the first mating surface 231 extends radially along the first valve seat body 210.

[0077] The end face of the sealing ring 240 in the thickness direction will be squeezed with the first mating surface 231. The first mating surface 231 extends radially along the first valve seat body 210, which can make the squeezing force between the sealing ring 240 and the first mating surface 231 more uniform, so that the force on the sealing ring 240 is more evenly distributed on the entire circumference, avoiding the occurrence of local stress concentration and ensuring the stability of the seal.

[0078] Moreover, the first mating surface 231 extends radially along the first valve seat body 210, ensuring that when the sealing ring 240 is squeezed by the first mating surface 231, it only forms a force in the axial X direction of the flow regulating hole on the first valve seat body 210, thereby ensuring that the first end face 211 of the first valve seat body 240 can fit more tightly with the valve core 110.

[0079] Please refer to Figures 1 to 8 In this embodiment, along the radial direction of the flow regulating hole 220, the width of the first mating surface 231 is smaller than the wire diameter of the sealing ring 240.

[0080] For example, the flow regulating valve seat 200 is installed on the valve body 100. The outer peripheral surface of the flow regulating valve seat 200 can abut against the valve body 100. The sealing ring 240 is disposed on the first annular groove 230. Along the radial direction of the flow regulating hole 220, the width of the first mating surface 231 is smaller than the wire diameter of the sealing ring 240. That is to say, when the sealing ring 240 is disposed on the first annular groove 230, the sealing ring 240 can abut against the valve body 100, and the sealing ring 240 can abut against the first mating surface 231 and the second mating surface 232, thereby improving the filling rate of the sealing ring 240 in the first annular groove 230 and improving the sealing effect between the flow regulating valve seat 200 and the valve body 100.

[0081] Please refer to Figures 1 to 8 In this embodiment, along the axial direction X of the flow regulating hole, the first valve seat body 210 has a first end face 211 for sealing and engaging with the valve core 110 and a second end face 212 disposed opposite to the first end face 211, and the second mating surface 232 extends to the second end face 212.

[0082] For example, the first end face 211 includes a spherical surface that mates with the valve core 110. This spherical surface can make relatively smooth contact with the valve core 110, and the valve opens and closes more smoothly during the rotation of the valve core 110.

[0083] Along the axial direction X of the flow regulating hole, a first end face 211 and a second end face 212 are spaced apart. A first mating surface 231 can be arranged parallel to the second end face 212, and a second mating surface 232 can extend to the second end face 212. The ball valve may include a first limiting member 120, which can abut against the second end face 212. That is, along the axial direction X of the flow regulating hole, a sealing ring 240 can abut against the first mating surface 231 and the first limiting member 120. Along the radial direction of the first valve seat body 210, a sealing ring 240 can abut against the second mating surface 232 and the body of the flow regulating valve seat 200. In this way, the sealing ring 240 can seal the valve body 100 and the flow regulating valve seat 200 in both the axial and radial directions, further reducing the probability of leakage between the valve body 100 and the flow regulating valve seat 200 and improving the overall sealing performance of the ball valve.

[0084] Please refer to Figures 1 to 8 In this embodiment, along the axial direction X of the flow regulating orifice, the projection of the flow regulating orifice 220 includes two arc curves 221, a first superior arc line 222, and a second superior arc line 223. The two arc curves 221 are symmetrically arranged about the first center line Y, which is perpendicular to the axial direction X of the flow regulating orifice. The two arc curves 221 convex towards each other. Each arc curve 221 has a first end 221A close to the first center line Y and a second end 221B away from the first center line Y. The first superior arc line 222 is symmetrically arranged about the first center line Y and connects the first end 221A of the two arc curves 221. The opening of the second superior arc line 223 is opposite to the opening of the first superior arc line 222 and connects the second end 221B of the two arc curves 221.

[0085] When the ball valve equipped with the flow regulating valve seat 200 is opened, the valve core 110 rotates from the side where the first superior arc 222 is located to the side where the second superior arc 223 is located. When the opening degree of the valve core 110 is small, the flow area increases slowly as the opening degree increases. When the opening degree of the valve core 110 is large, the flow area increases rapidly within a certain range as the opening degree increases, making it easy for the ball valve to achieve the equal percentage characteristic with high regulation accuracy.

[0086] Please refer to Figure 9 In some possible implementations, the arc curve 221 can also be constructed as a straight line.

[0087] Please refer to Figures 1 to 8 In this embodiment, the flow regulating valve seat 200 further includes a first positioning part 250, which is disposed on the first valve seat body 210 and protrudes from the outer peripheral surface of the first valve seat body 210.

[0088] The first positioning part 250 is disposed on the outer peripheral surface of the first valve seat body 210, and the inner wall surface of the valve body 100 is provided with a first groove 101, with the first positioning part 250 engaging with the first groove 101. The engagement of the first positioning part 250 and the first groove 101 provides precise positioning and fixation of the flow regulating valve seat 200 within the valve body 100. It restricts the radial and circumferential movement of the first valve seat body 210, ensuring that the first valve seat body 210 can be stably maintained in a predetermined position. During the operation of the ball valve, the flow of fluid exerts a certain force on the first valve seat body 210. This engagement structure effectively resists these external forces, ensuring that the first valve seat body 210 will not shift or shake due to force, thus guaranteeing the normal operation of the ball valve.

[0089] When installing the flow regulating valve seat 200, the first positioning part 250 and the first groove 101 can serve as guides and positions. Installers can more accurately install the flow regulating valve seat 200 into the first channel based on the positional relationship between the first positioning part 250 and the first groove 101, reducing errors and difficulty during installation and improving installation efficiency.

[0090] Please refer to Figures 1 to 8 This application also provides a flow regulating ball valve 1000, which includes any flow regulating valve seat 200 in this application embodiment.

[0091] The flow regulating ball valve 1000 proposed in this application embodiment has an included angle α between the first mating surface 231 and the second mating surface 232, satisfying 0° < α < 90°. In this way, along the thickness direction of the sealing ring 240, one end of the sealing ring 240 can abut against the first mating surface 231, and the second mating surface 232 can abut against the other end of the sealing ring 240. The first mating surface 231 and the second mating surface 232 can more fully compress the sealing ring 240, improve the filling rate of the sealing ring 240 in the first annular groove 230, reduce the sealing gap between the sealing ring 240 and the flow regulating valve seat 200, enhance the sealing effect between the flow regulating valve seat 200 and the valve body 100, and reduce the probability of leakage between the flow regulating valve seat 200 and the valve body 100.

[0092] Please refer to Figures 1 to 8 In this embodiment, the flow regulating ball valve 1000 also includes a mounting valve seat 300 and a valve core 110. Along the axial direction X of the flow regulating hole, the valve core 110 is disposed between the mounting valve seat 300 and the flow regulating valve seat 200.

[0093] The flow regulating ball valve 1000 also includes a mounting seat 300 and a valve core 110. Along the axial direction X of the flow regulating orifice, the mounting seat 300 and the flow regulating valve seat 200 are disposed at both ends of the valve core 110. The mounting seat 300 and the flow regulating valve seat 200 are both sealed to the valve core 110. When the fluid medium flows through the flow regulating orifice 220, the mounting seat 300 and the flow regulating valve seat 200 can effectively prevent fluid leakage, thus improving the sealing reliability of the flow regulating ball valve 1000.

[0094] Please refer to Figures 1 to 8 In this embodiment, the valve seat 300 includes a second valve seat body 310, a through hole 320, and a second annular groove 330. The through hole 320 is located on the inner side of the second valve seat body 310, and the second annular groove 330 is located on the outer side of the second valve seat body 310. The second annular groove 330 is adapted to accommodate the sealing ring 240. The second annular groove 330 has intersecting third mating surfaces 331 and fourth mating surfaces 332. Both the third mating surfaces 331 and fourth mating surfaces 332 are pressed against the sealing ring 240. The included angle between the third mating surfaces 331 and fourth mating surfaces 332 is β, which satisfies the condition: 0° < β < 90°.

[0095] For example, in this embodiment, the included angle β can be 5°, 10°, 15°, 25°, 40°, 50°, 60°, 70°, 80° or 85°, etc.

[0096] The through hole 320 is disposed on the inner side of the second valve seat body 310. For example, the through hole 320 can penetrate the second valve seat body 310, and the fluid medium can pass through the second valve seat body 310 through the through hole 320.

[0097] The mounting seat 300 also includes a second annular groove 330, which can be disposed on the outer peripheral surface of the second valve seat body 310. The second annular groove 330 is suitable for accommodating the sealing ring 240. Since the mounting seat 300 can be disposed inside the valve body 100 of the ball valve, the sealing ring 240 can be disposed between the valve body 100 and the mounting seat 300 to prevent liquid from flowing between the valve body 100 and the mounting seat 300, thereby forming a sealing effect between the valve body 100 and the mounting seat 300.

[0098] The second annular groove 330 has intersecting third mating surfaces 331 and fourth mating surfaces 332. Both the third mating surfaces 331 and fourth mating surfaces 332 are pressed against the sealing ring 240. Since the sealing ring 240 is located between the mounting valve seat 300 and the valve body 100, the sealing ring 240 will also be pressed against the valve body 100. The included angle between the third mating surfaces 331 and fourth mating surfaces 332 is β, which satisfies 0°<β<90°. That is to say, along the axial direction of the through hole 320, the third mating surfaces 331 and fourth mating surfaces 332 are inclined and are not perpendicular to each other. For example, the third mating surface 331 can be perpendicular to the axial direction of the through hole 320, and the fourth mating surface 332 can be inclined relative to the axial direction of the through hole 320. Along the thickness direction of the sealing ring 240, one end of the sealing ring 240 can abut against the third mating surface 331, and the fourth mating surface 332 can abut against the other end of the sealing ring 240. In this way, the third mating surface 331 and the fourth mating surface 332 can more fully compress the sealing ring 240, improve the filling rate of the sealing ring 240 in the second annular groove 330, reduce the sealing gap between the sealing ring 240 and the mounting valve seat 300, enhance the sealing effect between the mounting valve seat 300 and the valve body 100, and reduce the probability of leakage between the mounting valve seat 300 and the valve body 100.

[0099] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0100] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0101] The above description is merely an embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the scope of the claims of this application.

[0102] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A flow regulating valve seat, characterized in that, include: First valve seat body (210); A flow regulating hole (220) is disposed on the inner side of the first valve seat body (210); A first annular groove (230) is provided on the outside of the first valve seat body (210), and the first annular groove (230) is adapted to accommodate a sealing ring (240); The first annular groove (230) has an intersecting first mating surface (231) and a second mating surface (232). Both the first mating surface (231) and the second mating surface (232) are pressed against the sealing ring (240). The included angle between the first mating surface (231) and the second mating surface (232) is α, which satisfies 0° < α < 90°.

2. The valve seat according to claim 1, characterized in that, The included angle α satisfies: 35°≤α≤45°.

3. The valve seat according to claim 1, characterized in that, The first mating surface (231) extends radially along the first valve seat body (210).

4. The valve seat according to claim 1, characterized in that, Along the radial direction of the flow regulating hole (220), the width of the first mating surface (231) is smaller than the wire diameter of the sealing ring (240).

5. The valve seat according to claim 1, characterized in that, Along the axial direction of the flow regulating hole (220), the first valve seat body (210) has a first end face (211) for sealing and engaging with the valve core (110) and a second end face (212) disposed opposite to the first end face (211), the second mating surface (232) extending to the second end face (212).

6. The valve seat according to claim 1, characterized in that, Along the axial direction of the flow regulating orifice (220), the projection of the flow regulating orifice (220) includes: Two arc-shaped curves (221) are symmetrically arranged about a first center line. The first center line is perpendicular to the axis of the flow regulating hole (220). The two arc-shaped curves (221) bulge towards each other. Each arc-shaped curve (221) has a first end (221A) close to the first center line and a second end (221B) away from the first center line. The first superior arc (222) is symmetrically arranged about the first center line, and the first superior arc (222) connects the first end (221A) of the two arc curves (221); The second superior arc (223) has an opening opposite to the opening of the first superior arc (222), and the second superior arc (223) connects the second ends (221B) of the two arc curves (221).

7. The valve seat according to claim 1, characterized in that, The flow regulating valve seat also includes a first positioning part (250), which is disposed on the first valve seat body (210) and protrudes from the outer peripheral surface of the first valve seat body (210).

8. A flow regulating ball valve, characterized in that, include: The flow regulating valve seat as described in any one of claims 1-7.

9. The flow regulating ball valve according to claim 8, characterized in that, The flow regulating ball valve also includes a mounting seat (300) and a valve core (110) along the axial direction of the flow regulating hole (220), with the valve core (110) disposed between the mounting seat (300) and the flow regulating seat.

10. The flow regulating ball valve according to claim 9, characterized in that, The mounting valve seat (300) includes a second valve seat body (310), a through hole (320), and a second annular groove (330). The through hole (320) is located on the inner side of the second valve seat body (310), and the second annular groove (330) is located on the outer side of the second valve seat body (310). The second annular groove (330) is adapted to accommodate a sealing ring (240). The second annular groove (330) has intersecting third mating surfaces (331) and fourth mating surfaces (332). Both the third mating surfaces (331) and the fourth mating surfaces (332) are pressed against the sealing ring (240). The included angle between the third mating surfaces (331) and the fourth mating surfaces (332) is β, which satisfies the condition: 0° < β < 90°.

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