A spherical valve body forging and its surface strengthening process

Abstract

The present application relates to the technical field of ball valves, and provides a spherical valve body forging and a surface strengthening process thereof. The spherical valve body forging includes: a valve seat body having a valve cavity, a liquid inlet and a liquid outlet respectively connected to the valve cavity; and; a cut-off filter matching device, which can be movably arranged inside the valve cavity; the cut-off filter matching device is used to filter the liquid containing the blockage while controlling the flow of the liquid. The spherical valve body forging provided by the present application can control the flow of the liquid while filtering the liquid, prevent the spherical valve body from being blocked by the blockage in the liquid, reduce the degree of damage to the spherical valve body, and increase the service life of the spherical valve body.

Description

Technical Field

[0001] The present application relates to the technical field of ball valves, and in particular to a spherical valve body forging and a surface strengthening process thereof. Background Art

[0002] Ball valve is a common type of valve, which mainly controls the flow or cutoff of the medium by rotating the ball; the ball valve body is usually composed of valve body, ball core, valve seat, valve stem, bracket and drive device. Spherical valve body forging is a spherical valve body manufactured by forging process.

[0003] During use, the spherical valve body in the related technology usually controls the flow and stoppage of the liquid directly by moving the ball core. Since the function of most spherical valve bodies is mainly to control the flow and stoppage of the liquid, if there is an obstruction in the liquid when the spherical valve body is in use, the spherical valve body may be blocked, which in turn causes damage to the spherical valve body and reduces its service life. Summary of the invention

[0004] The embodiment of the present application provides a spherical valve body forging and a surface strengthening process thereof, which can improve the technical problems existing in the related art that the spherical valve body is damaged and has a short service life due to the clogging of the spherical valve body by blockages in the liquid during use.

[0005] In a first aspect, an embodiment of the present application provides a spherical valve body forging, comprising:

[0006] A valve seat body, comprising a valve cavity, a liquid outlet and a liquid inlet respectively connected to the valve cavity; and

[0007] The intercepting and filtering matching device is movably arranged inside the valve cavity; the intercepting and filtering matching device is used to filter the liquid containing the blockage and control the flow rate of the liquid at the same time.

[0008] The above technical solutions in the embodiments of the present application have at least the following technical effects:

[0009] Before use, the spherical valve body forging provided in the embodiment of the present application controls the movement of the cut-off filter matching device in the valve cavity, and moves the cut-off filter matching device between the liquid inlet and the liquid outlet. At this time, when one side of the cut-off filter matching device corresponds to the liquid outlet, the other side of the cut-off filter matching device corresponds to the liquid inlet. The position of the cut-off filter matching device can be flexibly adjusted so that the cut-off filter matching device can better filter and control the flow rate, so that the two sides of the cut-off filter matching device are respectively abutted against the inner wall of the valve seat body at the liquid outlet position and the inner wall of the valve seat body at the liquid inlet position, which helps to improve the cut-off filter matching device. The degree of fit between the coupling device and the inner wall of the valve seat body can reduce the obstruction entering the valve cavity and control the flow rate of the liquid at the same time; when the liquid with the obstruction enters from the liquid inlet, the obstruction will be intercepted and filtered by the filtering coupling device, and the filtered liquid enters the valve cavity, and then the liquid is controlled by the intercepting and filtering coupling device to make the liquid flow out from the liquid outlet. In summary, through the cooperation of the internal components of the intercepting and filtering coupling device, the flow rate of the liquid can be controlled while filtering the liquid, thereby preventing the spherical valve body from being blocked by the obstruction in the liquid, reducing the degree of damage to the spherical valve body and increasing the service life of the spherical valve body.

[0010] In some embodiments, the cut-off filter assembly comprises:

[0011] A valve core part is movably arranged inside the valve cavity; the valve core part is used to filter the liquid containing blockages flowing into the valve seat body and control the flow rate of the liquid; and

[0012] The driving part is arranged on the valve seat body, and the power output end of the driving part is connected to the valve core part; the driving part is used to drive the valve core part to rotate in the valve cavity, so that the valve core part can filter the liquid containing the blockage and adjust the flow rate of the liquid at the same time.

[0013] In some embodiments, the valve core portion comprises:

[0014] A cut-off valve core member is rotatably disposed in the valve cavity and connected to the first power output end of the driving part; the cut-off valve core member is used to control the flow rate of the liquid; and

[0015] The filter valve core is rotatably disposed in the valve cavity and connected to the second power output end of the driving part; the cut-off valve core is arranged opposite to the filter valve core; a filter hole is provided on the filter valve core, and the filter valve core is used to filter the liquid containing the blockage;

[0016] Wherein, before the liquid passes through the spherical valve body, the filter valve core is at the liquid inlet position to be in a state to be filtered, and the cut-off valve core is at the liquid outlet position to be in a liquid control state; after the liquid passes through the spherical valve body, the driving part controls the filter valve core to rotate from the liquid inlet position to the inner wall position of the valve seat body to put the filter valve core in a state to be cleaned;

[0017] And / or, both sides of the cut-off valve core are provided with flow control structures, and the flow control structures are used to cooperate with the inner wall of the valve seat body to adjust the flow rate of the liquid; the flow control structure includes a concave arc structure.

[0018] In some embodiments, the filter valve core comprises:

[0019] The resistance component is rotatably arranged in the valve cavity and connected to the power output end of the driving part; the cut-off valve core is arranged opposite to the resistance component; the resistance component is used to resist the inner wall of the valve seat body; the resistance component is provided with a resistance circular hole;

[0020] an annular deformation portion, the outer edge of which is connected to the inner wall of the abutting circular hole; and

[0021] A filter component, wherein the outer edge of the filter component is connected to the inner edge of the annular deformation portion; the filter component faces the inner wall of the valve seat body when in the state to be cleaned, and the filter component is partially penetrated through the liquid inlet when in the state to be filtered, and the annular deformation portion can be deformed under the pressure of the liquid and the blockage to drive the filter component to move into the resistance component.

[0022] In some embodiments, the number of the filtering holes is multiple, and the apertures of at least two of the filtering holes are different;

[0023] And / or, at least one of the filter holes is circular in shape, and at least one of the filter holes is non-circular in shape; wherein the circular filter holes and the non-circular filter holes are arranged alternately in sequence.

[0024] In some embodiments, the valve core portion further comprises:

[0025] A telescopic member, one end of which is connected to the cut-off valve core member;

[0026] An extrusion structure is connected to the other end of the telescopic member, and the outer diameter of the extrusion structure is larger than the inner diameter of the liquid outlet; in the state to be cleaned, the extrusion structure presses against the filter component under the action of the telescopic member to deform the annular deformation portion, thereby causing the filter component to move away from the valve cavity and outside the abutting component.

[0027] In some embodiments, a receiving groove is provided on the inner wall of the valve seat body, and a cleaning port is provided on the outer wall of the valve seat body, wherein the cleaning port is connected to one end of the receiving groove, and the receiving groove is opposite to the filter valve core member in the waiting-to-clean state; after the liquid passes through the spherical valve body, the driving part controls the cut-off valve core member to rotate from the liquid outlet position to the filter valve core member position so that the cut-off valve core member is in the blockage cleaning state; the spherical valve body forging also includes:

[0028] A pulling object is movably disposed on the inner wall of the receiving groove and faces the valve cavity;

[0029] A pulling matching piece, movably arranged at the notch of the accommodating groove;

[0030] Wherein, when the cut-off valve core member is in the blockage cleaning state, the object pulling fitting member is used to move from the bottom wall of the accommodating groove to the position of the cleaning port to open the notch of the accommodating groove, and then move from the position of the cleaning port along the filter component to the bottom wall of the accommodating groove, and scrape the blockage attached to the filter component to the accommodating groove and then abut against the bottom wall of the accommodating groove to close the notch of the accommodating groove; the object pulling member is used to slidably cooperate with the side wall of the object pulling fitting member facing away from the valve cavity to pull the blockage out of the accommodating groove.

[0031] In some embodiments, the bottom end of the object pulling member is provided with a convex arc-shaped top contact structure, and the bottom end of the object pulling member opposite to the top contact structure has a concave arc-shaped top containment structure on one side; when the object pulling member closes the notch of the containment groove, the top contact structure cooperates with the top containment structure to prevent the liquid pressure from moving the object pulling member into the containment groove;

[0032] A plug-in structure is convexly provided on the other side of the bottom end of the pulling fitting. After being in the blockage clearing state, the plug-in structure cooperates with the bottom wall of the receiving groove to prevent liquid from entering the receiving groove.

[0033] And / or, the bottom end of the plug-in structure has a notch structure, and the bottom wall of the receiving groove has a bayonet structure; the notch structure cooperates with the bayonet structure to prevent liquid from entering the receiving groove from the bottom wall of the receiving groove.

[0034] In some embodiments, the driving part includes:

[0035] A first driving component is disposed on the valve seat body;

[0036] A second driving component is disposed on the valve seat body and is arranged opposite to the first driving component;

[0037] a first rotating member, one end of which is connected to the first power output end of the first driving member, and the other end of which is passed through the valve body and connected to the cut-off valve core member; the first rotating member is used to drive the cut-off valve core member to rotate; and

[0038] A second rotating member, one end of which is connected to the second power output end of the second driving member, and the other end of which is passed through the valve body and connected to the filter valve core member; the second rotating member is used to drive the filter valve core member to rotate.

[0039] In a second aspect, an embodiment of the present application provides a surface strengthening process for a spherical valve body forging, comprising:

[0040] Select the projectile according to the material and performance requirements of the valve seat body and the cut-off filter matching device;

[0041] The valve seat body and the cut-off filter matching device are placed in the working area of ​​the shot peening equipment, and the shot peening speed is adjusted to 50-100m / s;

[0042] The shot peening equipment controls the angle of the shot peening to be perpendicular to the valve seat body, and controls the angle of the shot peening to be perpendicular to the interception and filtering matching device;

[0043] The shot peening equipment controls the shot peening time for 10-20 minutes;

[0044] After the shot peening time of the shot peening equipment is over, the surface strengthening of the valve seat body and the cut-off filter matching device is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0046] Figure 1 A schematic diagram of the structure of a spherical valve body forging provided in an embodiment of the present application;

[0047] Figure 2 A schematic diagram of the structure of the interception and filtration matching device provided in an embodiment of the present application;

[0048] Figure 3 A schematic diagram of the structure of a cut-off valve core member provided in an embodiment of the present application;

[0049] Figure 4A schematic cross-sectional view of a cut-off valve core member provided in an embodiment of the present application;

[0050] Figure 5 A schematic diagram of the structure of the filter valve core member provided in an embodiment of the present application;

[0051] Figure 6 A schematic diagram of the structure of the valve seat body, the pulling object member and the pulling object matching member provided in the embodiment of the present application;

[0052] Figure 7 for Figure 6 A partial enlarged view in the middle;

[0053] Figure 8 for Figure 7 A partial enlarged view of point B in the middle.

[0054] Among them, the reference numerals in the figure are:

[0055] 100, spherical valve body forging; 10, valve seat body; 101, valve cavity; 102, receiving groove; 103, cleaning port; 11, bayonet structure; 20, cut-off and filter matching device; 21, valve core part; 211, cut-off valve core member; 2111, flow control structure; 212, filter valve core member; 2121, resistance member; 2122, annular deformation part; 2123, filter member; 212301, filter hole; 213, telescopic member; 214, extrusion structure; 22, driving part; 221, first driving member; 222, second driving member; 223, first rotating member; 224, second rotating member; 30, pulling member; 31, top contact structure; 40, pulling matching member; 41, top containing structure; 42, plug-in structure; 421, notch structure. DETAILED DESCRIPTION

[0056] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0057] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0058] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0059] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0060] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0061] In this application, "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships; for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0062] It should be noted that, in the present application, words such as "in some embodiments", "exemplarily", "for example", etc. are used to indicate examples, illustrations or descriptions. Any embodiment or design described in the present application as "in some embodiments", "exemplarily", "for example" should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "in some embodiments", "exemplarily", "for example", etc. is intended to present related concepts in a concrete way, meaning that specific features, structures or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the above words in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0063] Ball valve is a common type of valve, which mainly controls the flow or cutoff of the medium by rotating the ball; the ball valve body is usually composed of valve body, ball core, valve seat, valve stem, bracket and drive device. Spherical valve body forging is a spherical valve body manufactured by forging process.

[0064] During use, the spherical valve body in the related technology usually controls the flow and stoppage of the liquid directly by moving the ball core. Since the function of most spherical valve bodies is mainly to control the flow and stoppage of the liquid, if there is an obstruction in the liquid when the spherical valve body is in use, the spherical valve body may be blocked, which in turn causes damage to the spherical valve body and reduces its service life.

[0065] Based on this, in order to improve the problem in the related art that the spherical valve body is damaged and has a short service life due to being blocked by obstructions in the liquid during use, the embodiment of the present application provides the following solution.

[0066] See also Figure 1 The embodiment of the present application provides a spherical valve body forging 100, the spherical valve body forging 100 and the surface strengthening process thereof include a valve seat body 10 and a cut-off filter matching device 20, wherein:

[0067] The valve seat body 10 comprises a valve cavity 101 , and a liquid inlet and a liquid outlet respectively connected to the valve cavity 101 .

[0068] The intercepting and filtering matching device 20 is movably arranged inside the valve cavity 101; the intercepting and filtering matching device 20 is used to filter the liquid containing the blockage and control the flow rate of the liquid at the same time.

[0069] It can be understood that the valve seat body 10 can be a structure that can circulate liquid and accommodate components, such as a hollow cylinder or a cylindrical shell, but not limited to this. The outer diameter of the liquid outlet is smaller than the outer diameter of the liquid inlet. The intercepting filter matching device 20 can be a component that can filter the liquid and control the flow rate, such as a filter and a liquid regulating component and a component that controls the movement of the filter and the liquid regulating component, but not limited to this.

[0070] As can be seen from the above, before the spherical valve body forging 100 provided in the embodiment of the present application is used, the intercepting filter matching device 20 is controlled to move in the valve cavity 101, and the intercepting filter matching device 20 is moved between the liquid inlet and the liquid outlet. The position of the intercepting filter matching device 20 can be flexibly adjusted so that the intercepting filter matching device 20 can better filter and control the flow rate, so that the two sides of the intercepting filter matching device 20 are respectively abutted against the inner wall of the valve seat body 10 at the liquid outlet position and the inner wall of the valve seat body 10 at the liquid inlet position, which helps to improve the cooperation between the intercepting filter matching device 20 and the inner wall of the valve seat body 10 The degree of the blockage can reduce the blockage entering the valve cavity 101 and control the flow rate of the liquid at the same time; when the liquid with the blockage enters from the liquid inlet, the blockage will be intercepted and filtered by the filter matching device 20, and the filtered liquid enters the valve cavity 101, and then the liquid is controlled by the intercepting filter matching device 20 so that the liquid flows out from the liquid outlet. In summary, with the cooperation of the internal components of the intercepting filter matching device 20, the flow rate of the liquid can be controlled while filtering the liquid, thereby preventing the spherical valve body from being blocked by the blockage in the liquid, reducing the degree of damage to the spherical valve body and increasing the service life of the spherical valve body.

[0071] In some embodiments, please refer to Figures 3 to 5 The cut-off and filter matching device 20 includes a valve core portion 21 and a driving portion 22, wherein:

[0072] The valve core portion 21 is movably disposed inside the valve cavity 101 ; the valve core portion 21 is used to filter the liquid containing blockages flowing into the valve seat body 10 and to control the flow rate of the liquid.

[0073] The driving part 22 is arranged on the valve seat body 10, and the power output end of the driving part 22 is connected to the valve core part 21; the driving part 22 is used to drive the valve core part 21 to rotate in the valve cavity 101, so that the valve core part 21 can filter the liquid containing the blockage and adjust the flow rate of the liquid at the same time.

[0074] It can be understood that the valve core 21 is a component that can filter the liquid and adjust the flow rate, for example, it can be a component composed of a filtering structure and a cut-off structure, etc., but it is not limited thereto. The driving part 22 can be a component that can drive the valve core 21 to move, for example, it can be a rotating part and a driving part that drives the rotating part to rotate, and the driving part can be a motor, etc., but it is not limited thereto.

[0075] With such arrangement, when the spherical valve body forging 100 is in use, the driving portion 22 drives the valve core portion 21 to rotate inside the valve cavity 101, and rotates the valve core portion 21 to a position between the liquid outlet and the liquid inlet. At this time, when one side of the valve core portion 21 corresponds to the liquid outlet and abuts against the inner wall of the valve seat body 10 at the liquid outlet position, the other side of the valve core portion 21 corresponds to the liquid inlet and abuts against the inner wall of the valve seat body 10 at the liquid inlet position. The position of the intercepting filter matching device 20 can be flexibly adjusted, so that the intercepting filter matching device 20 can better filter and control the flow, thereby helping to prevent obstructions from entering the valve cavity 101 and causing the valve cavity 101 to be blocked.

[0076] Optionally, in some embodiments, see Figures 3 to 5 The valve core part 21 includes a cut-off valve core component 211 and a filter valve core component 212, wherein:

[0077] The cut-off valve core member 211 is rotatably disposed in the valve cavity 101 and is connected to the first power output end of the driving portion 22 ; the cut-off valve core member 211 is used to control the flow rate of the liquid.

[0078] The filter valve core member 212 is rotatably arranged in the valve cavity 101 and connected to the second power output end of the driving part 22; the cut-off valve core member 211 and the filter valve core member 212 are arranged opposite to each other; a filter hole 212301 is opened on the filter valve core member 212, and the filter valve core member 212 is used to filter the liquid containing the blockage.

[0079] Among them, before the liquid passes through the spherical valve body, the filter valve core component 212 is at the liquid inlet position to be in a state to be filtered, and the cut-off valve core component 211 is at the liquid outlet position to be in a liquid control state; after the liquid passes through the spherical valve body, the driving part 22 controls the filter valve core component 212 to rotate from the liquid inlet position to the inner wall position of the valve seat body 10 so that the filter valve core component 212 is in a state to be cleaned.

[0080] It can be understood that the cut-off valve core 211 can be a component capable of controlling the flow rate of the liquid outlet, such as a hollow hemisphere or a hemispherical shell, but not limited thereto. The filter valve core 212 can be a component capable of filtering the liquid entering from the liquid inlet, such as a hollow hemisphere or a hemispherical shell with a filter port, but not limited thereto.

[0081] In this arrangement, since the cut-off valve core member 211 and the filter valve core member 212 are arranged opposite to each other, before the liquid passes through the spherical valve body, the filter valve core member 212 is at the liquid inlet position to be in a state to be filtered, and the cut-off valve core member 211 is at the liquid outlet position to be in a liquid control state. At this time, the liquid flows into the valve cavity 101 from the liquid inlet through the filter valve core member 212, and then the liquid flows out from the liquid outlet after passing through the cut-off valve core member 211 from the valve cavity 101; after the liquid passes through the spherical valve body, the first power output end of the driving part 22 drives the filter valve core member 212 to rotate, so as to control the filter valve core member 212 to rotate from the liquid inlet position to the inner wall position of the valve seat body 10 so that the filter valve core member 212 is in a state to be cleaned, and the filter valve core member 212 is used to block the obstruction between the inner wall of the valve seat body 10 and the filter valve core member 212, thereby improving the speed and purity of the liquid passing through, reducing the blockage of the valve cavity 101, and improving the service life and service life.

[0082] Optionally, in some embodiments, see Figure 3 , flow control structures 2111 are provided on both sides of the cut-off valve core member 211, and the flow control structure 2111 is used to cooperate with the inner wall of the valve seat body 10 to adjust the flow rate of the liquid; the flow control structure 2111 includes a concave arc structure.

[0083] It can be understood that the flow control structure 2111 can be a structure that can adjust the flow rate of the liquid when the liquid is flowing, for example, it can be an arc segment structure, etc., but it is not limited thereto.

[0084] With such arrangement, when the liquid flows through the valve chamber 101 and is about to pass through the liquid outlet, the cut-off valve core member 211 rotates under the control of the driving portion 22, so that the recessed arc structure cooperates with the movement of the liquid outlet, so as to change the size of the liquid outlet by covering the arc structure, thereby adjusting the flow rate of the liquid flowing through the liquid outlet.

[0085] Optionally, in some embodiments, see Figure 5 The filter valve core 212 includes a resisting component 2121, an annular deformation portion 2122 and a filter component 2123, wherein:

[0086] The resistance component 2121 is rotatably disposed in the valve cavity 101 and connected to the power output end of the driving part 22; the cut-off valve core 211 and the resistance component 2121 are arranged opposite to each other; the resistance component 2121 is used to resist on the inner wall of the valve seat body 10; and a resistance circular hole is opened on the resistance component 2121.

[0087] The outer edge of the annular deformation portion 2122 is connected to the inner wall of the abutting circular hole.

[0088] The outer edge of the filter component 2123 is connected to the inner edge of the annular deformation portion 2122; when the filter component 2123 is in the state to be cleaned, it faces the inner wall of the valve seat body 10. When the filter component 2123 is in the state to be filtered, it is partially penetrated by the liquid inlet, and the annular deformation portion 2122 can be deformed under the pressure of the liquid and the blockage to drive the filter component 2123 to move into the resistance component 2121.

[0089] It can be understood that the abutment component 2121 can be a structure that can abut against the inner wall of the valve seat body 10, for example, it can be a spherical structure that matches the inner wall of the valve seat body 10, but it is not limited to this. The annular deformation part 2122 can be a component that can deform after being subjected to force, for example, it can be an annular elastic structure, and the material of its elastic structure can be made of environmentally friendly PP plastic, TPR (thermoplastic rubber) material, polyethylene (PE) or polycarbonate. The filter component 2123 is a structure that can be used to filter obstructions, for example, it can be a structure with a filter port opened on a hollow hemisphere or a hemispherical shell, but it is not limited to this.

[0090] With such arrangement, when the filter valve core 212 is at the liquid inlet position to be filtered and the liquid is flowing, the liquid and the blockage impact the filter component 2123. At this time, the filter component 2123 is acted upon by a force, and the annular deformation portion 2122 connected to the filter component 2123 is also subjected to a force. Since the annular deformation portion 2122 is made of environmentally friendly PP plastic, TPR (thermoplastic rubber) material, polyethylene (PE) or polycarbonate, the annular deformation portion 2122 is also deformed toward the inside of the valve cavity 101 after being subjected to the force, driving the filter component 2123 to move into the resistance component 2121, where the blockage is located to prevent the blockage from falling into the valve cavity 101 and blocking the valve cavity 101, thereby reducing the amount of blockage entering the valve cavity 101, thereby improving the filtering function and helping to improve the reliability of collecting blockages.

[0091] Optionally, in some embodiments, see Figure 5 , there are multiple filter holes 212301, and the apertures of at least two filter holes 212301 are different.

[0092] It can be understood that the pore size can be determined according to the size of the blockage to determine the size of the filter hole 212301 on the filter component 2123. The sizes of the multiple filter holes 212301 on the filter component 2123 can be the same or different. When filtering liquid, if the size of the filtered blockage is relatively uniform in actual situation, the sizes of the multiple filter holes 212301 on the filter component 2123 can be the same, but at least two filter holes 212301 have different pore sizes; if the size of the filtered blockage is uneven in actual situation, the sizes of the multiple filter holes 212301 on the filter component 2123 can be different; relatively uniform can be, for example, the sizes of the blockage are 2mm, 1.98mm, 1.97mm, 1.97mm, 2mm and 1.98mm, then the size of this blockage is relatively uniform; if the sizes of the blockage are 2mm, 1.8mm, 1.7mm, 1.7mm, 1.2mm and 1mm, then the size of this blockage is uneven; the above is only an example, not only the above description, but also other sizes.

[0093] With such a configuration, when the size of the blockage in the liquid is uniform, the sizes of the multiple filter holes 212301 on the filter component 2123 can be the same, and the apertures of at least two filter holes 212301 are different. When the size of the blockage in the liquid is uneven, the sizes of the multiple filter holes 212301 on the filter component 2123 can be different, thereby improving the accuracy of filtration, enhancing the efficiency of filtration, being able to adapt to a variety of filtration situations, and improving usage scenarios.

[0094] Optionally, in some embodiments, see Figure 5 At least one filter hole 212301 is circular in shape, and at least one filter hole 212301 is non-circular in shape; wherein the circular filter holes 212301 and the non-circular filter holes 212301 are arranged alternately in sequence.

[0095] It can be understood that among the multiple filter holes 212301, at least one filter hole 212301 is circular in shape, and at least one filter hole 212301 is non-circular in shape; the non-circular filter hole 212301 can be a polygonal filter hole 212301 (a triangular filter hole 212301, a quadrilateral filter hole 212301 or a hexagonal filter hole 212301, etc.); the arrangement method is that the filter holes 212301 are arranged in sequence in an alternating manner, or can be randomly distributed, that is, the filter holes 212301 are randomly arranged, etc., but is not limited to this.

[0096] In this arrangement, at least one filter hole 212301 is circular in shape, and at least one filter hole 212301 is non-circular in shape. The circular filter holes 212301 and the non-circular filter holes 212301 are arranged alternately in sequence to intercept at multiple angles, so that impurities can be intercepted from multiple angles when the liquid passes through the filter component 2123. For example, the circular filter hole 212301 may have a better interception effect on impurities that are approximately spherical, while the rectangular or polygonal filter hole 212301 can block irregularly shaped impurities from different sides and corners. Compared with the uniform arrangement of the single-shaped filter holes 212301, it can capture blockages of various shapes more comprehensively, thereby improving the overall filtration efficiency, and can also evenly distribute the pressure. The staggered arrangement can make the pressure applied by the liquid to the filter component 2123 during the filtration process more evenly distributed, making the filtration process more stable.

[0097] Optionally, in some embodiments, see Figure 3 and Figure 4 The valve core part 21 also includes a telescopic member 213 and an extrusion structure 214. One end of the telescopic member 213 is connected to the cut-off valve core part 211. The extrusion structure 214 is connected to the other end of the telescopic member 213, and the outer diameter of the extrusion structure 214 is larger than the inner diameter of the liquid outlet; when in the state to be cleaned, it is located at the position of the filter valve core part 212, and the extrusion structure 214 presses against the filter component 2123 under the action of the telescopic member 213, so that the annular deformation part 2122 is deformed, and then the filter component 2123 moves away from the valve cavity 101 to the outside of the abutment component 2121.

[0098] It can be understood that the telescopic part 213 can be a structure that can be extended and retracted, such as a spring structure or a rubber spring, but is not limited to this; the extrusion structure 214 can be a structure that can extrude the filter component 2123, such as a dome-shaped pot cover or a hollow hemispherical structure, but is not limited to this.

[0099] With such arrangement, after the filter component 2123 has filtered the obstruction, the annular deformation portion 2122 is deformed and accommodates the obstruction with the filter component 2123. At this time, the second power output end of the driving part 22 drives the filter valve core member 212 to rotate from the liquid inlet position to the inner wall position of the valve seat body 10 to be in a state to be cleaned. At this time, the first power output end of the driving part 22 drives the extrusion structure 214 on the cut-off valve core member 211 to rotate to the position of the filter valve core member 212. The extrusion structure 214 presses against the filter component 2123 under the action of the telescopic member 213 to deform the annular deformation portion 2122. At this time, the filter component 2123 receives the extrusion force while the annular deformation portion 2122 is also subjected to the extrusion force, thereby causing the filter component 2123 to move outside the abutting component 2121, thereby reducing the blockage of the valve chamber 101 and improving the use time and service life.

[0100] Optionally, in some embodiments, see Figure 6 The inner wall of the valve seat body 10 is provided with a receiving groove 102, and the outer wall of the valve seat body 10 is provided with a cleaning port 103, which is connected to one end of the receiving groove 102. The receiving groove 102 is opposite to the filter valve core member 212 when it is in the state of being cleaned; after the liquid passes through the spherical valve body, the driving part 22 controls the cut-off valve core member 211 to rotate from the liquid outlet position to the filter valve core member 212 position so that the cut-off valve core member 211 is in the state of cleaning the blockage; the spherical valve body forging 100 also includes a pulling object 30 and a pulling object matching member 40. The pulling object 30 is movably arranged on the inner wall of the receiving groove 102 and faces the valve cavity 101. The pulling object matching member 40 is movably arranged at the notch of the receiving groove 102.

[0101] Among them, when the cut-off valve core member 211 is in the blockage cleaning state, the object pulling fitting 40 is used to move from the bottom wall of the accommodating groove 102 to the position of the cleaning port 103 to open the slot of the accommodating groove 102, and then move from the position of the cleaning port 103 along the filter component 2123 to the bottom wall of the accommodating groove 102, and scrape the blockage attached to the filter component 2123 to the accommodating groove 102 and then abut against the bottom wall of the accommodating groove 102 to close the slot of the accommodating groove 102; the object pulling member 30 is used to slide with the side wall of the object pulling fitting 40 facing away from the valve cavity 101 to pull the blockage out of the accommodating groove 102.

[0102] It can be understood that the object pulling member 30 can be a structure capable of pulling the obstruction out of the receiving groove 102, for example, it can be a structure composed of an arc rod and a strip rod, and the strip rod is at the bottom of the arc rod and is in an "L" shape. The object pulling fitting member 40 can be a structure capable of cooperating with the object pulling member 30 and blocking the notch of the receiving groove 102, for example, it can be an arc rod, etc., but is not limited thereto. The arc shape of the object pulling fitting member 40 is consistent with the arc shape of the inner wall of the valve seat body 10. The object pulling fitting member 40 can slide upward to open the notch of the receiving groove 102, and can slide downward to close the notch of the receiving groove 102. In addition, the size of the cut-off valve core component 211 is smaller than that of the filter valve core component 212, because when the extrusion structure 214 extrudes the filter component 2123, the cut-off valve core component 211 needs to rotate to the inside of the arc of the filter valve core component 212, so that the extrusion structure 214 can contact and squeeze the filter component 2123, so that the annular deformation portion 2122 is deformed, and the filter component 2123 is moved away from the valve cavity 101 to the outside of the resistance component 2121.

[0103] In this way, before cleaning the obstruction, when the cut-off valve core 211 is in the obstruction cleaning state, the object-pulling fitting 40 moves from the bottom wall of the receiving groove 102 to the position of the cleaning port 103. After moving to the position of the cleaning port 103, the notch of the receiving groove 102 is not blocked by the object-pulling fitting 40, so as to open the notch of the receiving groove 102. Further, after the obstruction enters the receiving groove 102 from the filter component 2123, the object-pulling fitting 40 moves from the position of the cleaning port 103 along the filter component 2123 to the bottom wall of the receiving groove 102, and scrapes the obstruction attached to the filter component 2123 to the receiving groove 102 and then abuts against the bottom wall of the receiving groove 102. At this time, The slot of the receiving groove 102 is closed, and the filter valve core member 212 can be rotated to the liquid outlet position under the action of the driving part 22. At the same time, the pulling member 30 and the pulling fitting member 40 slide and cooperate with the side wall of the valve chamber 101 away from each other to pull the blockage out of the receiving groove 102, and then the blockage can be cleaned out of the receiving groove 102, thereby improving the cleaning efficiency. The blockage can be quickly brought into the receiving groove 102, thereby improving the efficiency of cleaning the blockage, reducing manual operation, reducing labor intensity and safety risks, and by first moving the blockage into the receiving groove 102 and then pulling the blockage out of the receiving groove 102 by the pulling member 30, the efficiency and reliability of cleaning the blockage can be improved.

[0104] Optionally, in some embodiments, see Figure 7 The bottom end of the pulling object piece 30 is provided with a convex arc-shaped top contact structure 31, and the bottom end of the pulling object matching piece 40 has a concave arc-shaped top structure 41 on the side opposite to the top contact structure 31; when the pulling object matching piece 40 closes the notch of the receiving groove 102, the top contact structure 31 cooperates with the top structure 41 to prevent the liquid pressure from moving the pulling object matching piece 40 into the receiving groove 102.

[0105] The other side of the bottom end of the object pulling fitting 40 is convexly provided with an inserting structure 42 . After being in the blockage clearing state, the inserting structure 42 cooperates with the bottom wall of the receiving groove 102 to prevent liquid from entering the receiving groove 102 .

[0106] It can be understood that the top contact structure 31 can be a structure that can support the top-containing structure 41, for example, it can be a structure with a convex arc, etc., but it is not limited thereto. The top-containing structure 41 can be a structure that can cooperate with the top contact structure 31, for example, it can be a structure with an arc-shaped recess, etc., but it is not limited thereto. The plug-in structure 42 can be a structure that can be plugged or installed on the bottom wall of the valve seat body 10, for example, it can be a long strip-shaped structure, etc., but it is not limited thereto.

[0107] With such arrangement, after the cut-off valve core 211 is in the state of clearing the obstruction, the convex arc-shaped top contact structure 31 abuts against the concave arc-shaped containment top structure 41. Since the containment top structure 41 is on the bottom end of the object-pulling fitting 40, the bottom end of the object-pulling fitting 40 is subjected to the force of the top contact and then presses against the bottom wall of the valve seat body 10. Therefore, the convex arc-shaped top contact structure 31 fixes the object-pulling fitting 40 on the bottom wall of the valve seat body 10 through the containment top structure 41. Before the liquid enters the valve cavity 101, the plug-in structure 42 convexly arranged on the other side of the bottom end of the object-pulling fitting 40 is plugged into the bottom wall of the containment groove 102 to cooperate with it, so as to prevent the bottom end of the object-pulling fitting 40 from being pushed open by the liquid pressure, causing the liquid to flow from the containment groove 102 to the cleaning port 103 and then flow out, thereby improving the sealing performance of the valve and extending the service life. In the case of changes in fluid pressure, due to the fixing effect of the top contact structure 31, the sealing pressure is kept stable and the reliability of the seal is enhanced.

[0108] Optionally, in some embodiments, see Figure 8 The bottom end of the plug-in structure 42 has a notch structure 421 , and the bottom wall of the receiving groove 102 has a bayonet structure 11 ; the notch structure 421 cooperates with the bayonet structure 11 to prevent liquid from entering the receiving groove 102 from the bottom wall of the receiving groove 102 .

[0109] It can be understood that the notch structure 421 can be a structure that can match with the bayonet structure 11, for example, it can be composed of a strip structure and an attachment strip connected to the strip structure, the attachment strip is used to fit on the inner wall of the valve seat body 10, and the strip structure is in contact with the bottom wall; the bayonet structure 11 can be a structure that can match with the notch structure 421, the bayonet structure 11 can be a structure that cooperates with the strip structure and the attachment strip, and the bottom wall of the valve seat body 10 can be provided with a notch identical to the strip structure, so that the strip structure can be matched and installed on this notch, and the side of the bottom wall of the valve seat body 10 can be provided with an attachment notch structure 421 that matches with the attachment strip, and the attachment strip can be installed and fit on the attachment notch structure 421 for matching.

[0110] In this way, before the liquid enters the valve chamber 101, the notch structure 421 on the plug-in structure 42 is plugged into the bayonet structure 11 on the bottom wall of the receiving groove 102, and the two are in contact and cooperate with each other to prevent the liquid from entering the valve chamber 101 and causing the liquid pressure to flow from the receiving groove 102 to the cleaning port 103 and then flow out, thereby improving the sealing performance of the valve, extending the service life of the valve seat body 10, while maintaining the stability of the seal, and further enhancing the reliability of the seal.

[0111] Optionally, a sealing member is installed on the valve seat body 10 ; the sealing member is located above the cleaning port 103 and is arranged on the outer wall of the valve seat body 10 .

[0112] It can be understood that the sealing member can be a structure for sealing the cleaning port 103, for example, a rectangular structure or an arc structure, etc., but is not limited thereto.

[0113] With such a configuration, when liquid passes through the valve chamber 101, the sealing member seals the cleaning port 103 to prevent the liquid from escaping from the cleaning port 103 and flowing outside the valve seat body 10. This can not only prevent liquid leakage, but also protect the environment and equipment, improve the safety and economic benefits of the system, extend the service life of the equipment, reduce the frequency of frequent maintenance and replacement of parts, and increase the use time.

[0114] Optionally, in some embodiments, see Figure 2 The driving part 22 includes a first driving component 221 , a second driving component 222 , a first rotating component 223 and a second rotating component 224 .

[0115] The first driving component 221 is disposed on the valve seat body 10. The second driving component 222 is disposed on the valve seat body 10 and is disposed opposite to the first driving component 221. One end of the first rotating member 223 is connected to the first power output end of the first driving component 221, and the other end of the first rotating member 223 is penetrated through the valve body and connected to the cut-off valve core member 211; the first rotating member 223 is used to drive the cut-off valve core member 211 to rotate. One end of the second rotating member 224 is connected to the second power output end of the second driving component 222, and the other end of the second rotating member 224 is penetrated through the valve body and connected to the filter valve core member 212; the second rotating member 224 is used to drive the filter valve core member 212 to rotate.

[0116] It can be understood that the first driving component 221 and the second driving component 222 are components that can drive the first rotating component 223 and the second rotating component 224 to rotate; for example, the first driving component 221 and the second driving component 222 can be motors, etc., but are not limited thereto. The first rotating component 223 and the second rotating component 224 can be components that can respectively drive the cut-off valve core component 211 and the filter valve core component 212 to rotate under the drive of the first driving component 221 and the second driving component 222, for example, the first rotating component 223 and the second rotating component 224 can both be rod-shaped structures or columnar structures, etc., but are not limited thereto.

[0117] In this arrangement, the first driving component 221 controls the rotation of the first rotating component 223, and the first rotating component 223 drives the cut-off valve core component 211 to rotate from the liquid outlet position to the filter valve core component 212 position. The second driving component 222 controls the rotation of the second rotating component 224, and the second rotating component 224 drives the filter valve core component 212 to rotate from the liquid inlet position to the inner wall position of the valve seat body 10, and the positions of the cut-off valve core component 211 and the filter valve core component 212 can be accurately controlled. Through the rotation operation, the opening and closing process of the valve can be simplified, making the operation easier and faster, reducing fluid resistance, and by accurately controlling the position of the valve core, it can ensure that the valve achieves a better sealing effect when closed, preventing fluid leakage, and can also reduce wear and tear, extending the service life of the valve seat body 10, the cut-off valve core component 211 and the filter valve core component 212.

[0118] The present application also provides a surface strengthening process for strengthening the spherical valve body forging 100 of any of the above embodiments. The surface strengthening process includes:

[0119] Shots are selected according to the material and performance requirements of the valve seat body 10 and the cut-off filter matching device 20, the valve seat body 10 and the cut-off filter matching device 20 are placed in the working area of ​​the shot peening equipment, the shot peening speed is adjusted to 55-95m / s, the shot peening equipment then controls the shot peening angle to be perpendicular to the valve seat body 10 and the cut-off filter matching device 20, and the shot peening time of the shot peening equipment is controlled to be 12-18 minutes; after the shot peening time of the shot peening equipment is over, the surface strengthening of the valve seat body 10 and the cut-off filter matching device 20 is completed.

[0120] This arrangement can improve the surface hardness, and the shot peening treatment can cause plastic deformation on the surface of the valve seat body 10 and the intercepting filter matching device 20. Under the high-speed impact of the projectile, the crystal structure of the material surface changes, forming a cold-work hardened layer; it is like countless micro-forgings on the metal surface, which significantly improves the surface hardness. For example, for some metal valve seat bodies 10, the surface hardness can be increased by 25% - 45% after shot peening, which can better resist friction and wear and extend the service life; the surface residual compressive stress can be increased. During the shot peening process, the material surface is deformed under the impact of the projectile, and residual compressive stress will be formed on the surface. The residual compressive stress can effectively offset the tensile stress that may be generated during use. For the valve seat body 10 and the cut-off filter matching device 20, when they are subjected to external loads or pressures, the residual compressive stress can reduce the possibility of surface cracks and expansion, just like pre-applying a "protective layer" on the material surface, improving the fatigue resistance of the components, especially under cyclic loading conditions, it can reduce the probability of fatigue crack initiation; the surface roughness can be improved. Appropriate shot peening can improve the surface roughness. The impact of the projectile can flatten some tiny protrusions on the surface, and at the same time fill some microscopic pits, so that the surface will become smoother. For the valve seat body 10 and the cut-off filter matching device 20, when the fluid passes through, the resistance of the fluid can be reduced and the passing efficiency of the fluid can be improved. Moreover, a smooth surface is also conducive to reducing the adhesion of impurities, and is also beneficial to maintaining the filtering performance of the filtering device; it can enhance the corrosion resistance of the surface. The hardened layer and residual compressive stress layer formed on the surface after shot peening can serve as a physical barrier to prevent the contact between the corrosive medium (such as moisture, chemicals, etc.) and the material matrix. At the same time, changes in the microstructure of the surface will also affect the electrochemical process of corrosion. For example, the corrosion rate of the steel valve seat body 10 that has been shot peened can be reduced by 29%-39% in some environments containing corrosive substances, thereby improving the reliability of the components in harsh environments.

[0121] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A spherical valve body forging, characterized in that: include: The valve seat body comprises a valve cavity, a liquid inlet and a liquid outlet respectively connected to the valve cavity; as well as A cut-off filter matching device is movably arranged inside the valve cavity; The interception and filtration matching device is used to filter the liquid containing the blockage and control the flow rate of the liquid at the same time; The cut-off and filter matching device comprises: A valve core part is movably arranged inside the valve cavity; the valve core part is used to filter the liquid containing blockages flowing into the valve seat body and control the flow rate of the liquid; and A driving part is arranged on the valve seat body, and a power output end of the driving part is connected to the valve core part; the driving part is used to drive the valve core part to rotate in the valve cavity, so that the valve core part can filter the liquid containing the blockage and adjust the flow rate of the liquid at the same time; The valve core portion comprises: A cut-off valve core member is rotatably disposed in the valve cavity and connected to the first power output end of the driving part; the cut-off valve core member is used to control the flow rate of the liquid; and The filter valve core is rotatably disposed in the valve cavity and connected to the second power output end of the driving part; the cut-off valve core is arranged opposite to the filter valve core; a filter hole is provided on the filter valve core, and the filter valve core is used to filter the liquid containing the blockage; Wherein, before the liquid passes through the spherical valve body, the filter valve core is at the liquid inlet position to be in a state to be filtered, and the cut-off valve core is at the liquid outlet position to be in a liquid control state; after the liquid passes through the spherical valve body, the driving part controls the filter valve core to rotate from the liquid inlet position to the inner wall position of the valve seat body to put the filter valve core in a state to be cleaned; And / or, both sides of the cut-off valve core are provided with flow control structures, the flow control structures are used to cooperate with the inner wall of the valve seat body to adjust the flow rate of the liquid; the flow control structure includes a concave arc structure; The filter valve core component comprises: The resistance component is rotatably arranged in the valve cavity and connected to the power output end of the driving part; the cut-off valve core is arranged opposite to the resistance component; the resistance component is used to resist the inner wall of the valve seat body; the resistance component is provided with a resistance circular hole; an annular deformation portion, the outer edge of which is connected to the inner wall of the abutting circular hole; and A filter component, wherein the outer edge of the filter component is connected to the inner edge of the annular deformation portion; the filter component faces the inner wall of the valve seat body when in the state to be cleaned, and the filter component is partially penetrated through the liquid inlet when in the state to be filtered, and the annular deformation portion can be deformed under the pressure of the liquid and the obstruction to drive the filter component to move into the abutment component; The valve core portion further comprises: A telescopic member, one end of which is connected to the cut-off valve core member; an extrusion structure connected to the other end of the telescopic member, wherein the outer diameter of the extrusion structure is greater than the inner diameter of the liquid outlet; in the state to be cleaned, the extrusion structure abuts against the filter component under the action of the telescopic member, so that the annular deformation portion is deformed, thereby causing the filter component to move away from the valve cavity and outside the abutting component; The inner wall of the valve seat body is provided with a receiving groove, and the outer wall of the valve seat body is provided with a cleaning port, the cleaning port is communicated with one end of the receiving groove, and the receiving groove is opposite to the filter valve core member in the waiting-to-clean state; after the liquid passes through the spherical valve body, the driving part controls the cut-off valve core member to rotate from the liquid outlet position to the filter valve core member position so that the cut-off valve core member is in the blockage cleaning state; the spherical valve body forging also includes: A pulling object is movably disposed on the inner wall of the receiving groove and faces the valve cavity; A pulling matching piece, movably arranged at the notch of the accommodating groove; Wherein, when the cut-off valve core member is in the blockage cleaning state, the object pulling fitting member is used to move from the bottom wall of the accommodating groove to the position of the cleaning port to open the notch of the accommodating groove, and then move from the position of the cleaning port along the filter component to the bottom wall of the accommodating groove, and scrape the blockage attached to the filter component to the accommodating groove and then abut against the bottom wall of the accommodating groove to close the notch of the accommodating groove; the object pulling member is used to slidably cooperate with the side wall of the object pulling fitting member facing away from the valve cavity to pull the blockage out of the accommodating groove.

2. The spherical valve body forging according to claim 1, characterized in that: There are multiple filter holes, and at least two of the filter holes have different pore sizes; And / or, at least one of the filter holes is circular in shape, and at least one of the filter holes is non-circular in shape; wherein the circular filter holes and the non-circular filter holes are arranged alternately in sequence.

3. The spherical valve body forging according to claim 1, characterized in that: The bottom end of the object pulling member is provided with a convex arc-shaped top contact structure, and the bottom end of the object pulling matching member opposite to the top contact structure has a concave arc-shaped top containment structure; when the object pulling matching member closes the notch of the containing groove, the top contact structure cooperates with the top containment structure to prevent the liquid pressure from moving the object pulling matching member into the containing groove; A plug-in structure is convexly provided on the other side of the bottom end of the pulling fitting. After being in the blockage clearing state, the plug-in structure cooperates with the bottom wall of the receiving groove to prevent liquid from entering the receiving groove. And / or, the bottom end of the plug-in structure has a notch structure, and the bottom wall of the receiving groove has a bayonet structure; the notch structure cooperates with the bayonet structure to prevent liquid from entering the receiving groove from the bottom wall of the receiving groove.

4. The spherical valve body forging according to claim 1, characterized in that: The driving part comprises: A first driving component is disposed on the valve seat body; A second driving component is disposed on the valve seat body and is arranged opposite to the first driving component; a first rotating member, one end of which is connected to the first power output end of the first driving member, and the other end of which is passed through the valve seat body and connected to the cut-off valve core member; the first rotating member is used to drive the cut-off valve core member to rotate; and A second rotating member, one end of which is connected to the second power output end of the second driving member, and the other end of which is passed through the valve seat body and connected to the filter valve core member; the second rotating member is used to drive the filter valve core member to rotate.

5. A surface strengthening process, characterized in that: Used to perform surface strengthening on the spherical valve body forging according to any one of claims 1 to 4, the surface strengthening process comprising: Select the projectile according to the material and performance requirements of the valve seat body and the cut-off filter matching device; The valve seat body and the cut-off filter matching device are placed in the working area of ​​the shot peening equipment, and the shot peening speed is adjusted to 55-95m / s; The shot peening equipment controls the angle of the shot peening to be perpendicular to the valve seat body, and controls the angle of the shot peening to be perpendicular to the interception and filtering matching device; The shot peening equipment finally controls the shot peening time to be 12-18 minutes; After the shot peening time of the shot peening equipment is over, the surface strengthening of the valve seat body and the cut-off filter matching device is completed.

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