A high-pressure ball valve with a pressure-reducing and shock-resistant valve chamber

Abstract

The present invention belongs to the field of valves, and specifically relates to a high-pressure ball valve with a pressure-reducing and impact-resistant valve cavity, comprising an inlet valve body and a liquid outlet valve body which are arranged in combination, a valve seat being installed on the top of the connection between the inlet valve body and the liquid outlet valve body, an opening and closing mechanism being arranged on the valve seat, the opening and closing mechanism comprising a valve stem installed inside the valve seat, a handle being installed on the top of the valve stem, and a sphere with a hollow channel being connected to one end of the stem which penetrates into the valve cavity; a liquid inlet mechanism being arranged inside the inlet valve body, the liquid inlet mechanism comprising a steering ring frame installed inside the inlet valve body, and a bearing being arranged in the middle of the steering ring frame; the ball valve is improved, and a liquid inlet mechanism and a liquid outlet mechanism are respectively arranged in the inlet valve body and the liquid outlet valve body, so as to improve the impact resistance of the valve cavity when the auxiliary medium is transmitted in the ball valve, realize the pressure reduction in the valve cavity, reduce the loss of the valve cavity during the medium transmission process, and improve the service life of the ball valve.

Description

Technical Field

[0001] The invention relates to the field of valves, and in particular to a high-pressure ball valve with a pressure-reducing and impact-resistant valve cavity. Background Art

[0002] Ball valve, the opening and closing part (ball) is driven by the valve stem and rotates around the axis of the ball valve. It can also be used for fluid regulation and control. The hard-sealed V-type ball valve has a strong shear force between its V-type ball core and the metal valve seat with hard alloy surfacing, which is particularly suitable for media containing fibers, tiny solid particles, etc. The multi-way ball valve can not only flexibly control the confluence, diversion, and flow direction switching of the medium on the pipeline, but also close any channel to connect the other two channels. This type of valve should generally be installed horizontally in the pipeline. Ball valves are divided into: pneumatic ball valves, electric ball valves, and manual ball valves according to the driving method.

[0003] The prior art has the following problems:

[0004] When the ball valve is in use, the conveyed medium will impact the valve cavity, causing damage to the valve cavity channel and the ball. Long-term use will cause the valve body's sealing performance to deteriorate, affecting the valve body's service life. Summary of the invention

[0005] (I) Purpose of the invention

[0006] In order to solve the technical problems existing in the background technology, the present invention proposes a high-pressure ball valve with a pressure-reducing and impact-resistant valve cavity, which has the characteristics of improved pressure-reducing and impact-resistant performance of the valve cavity.

[0007] (II) Technical solution

[0008] In order to solve the above technical problems, the present invention provides a high-pressure ball valve with a pressure-reducing and shock-resistant valve cavity, comprising a liquid inlet valve body and a liquid outlet valve body which are arranged in combination, a valve seat is installed on the top of the connection between the liquid inlet valve body and the liquid outlet valve body, an opening and closing mechanism is arranged on the valve seat, and the opening and closing mechanism comprises a valve stem installed inside the valve seat, a handle is installed on the top of the valve stem, and one end of the valve stem which penetrates into the valve cavity is connected to a ball with a hollow channel;

[0009] The liquid inlet valve body is provided with a liquid inlet mechanism, and the liquid inlet mechanism includes a steering ring frame installed inside the liquid inlet valve body, a bearing is provided in the middle of the steering ring frame, a turntable rotating along the inner wall of the steering ring frame is sleeved on the outside of the bearing, and a plurality of protruding spiral blades are installed in the channel of the turntable;

[0010] A liquid outlet mechanism is arranged inside the liquid outlet valve body, and the liquid outlet mechanism includes a displacement ring frame installed inside the liquid inlet valve body, and B sealing rings are symmetrically arranged at both ends of the inner wall of the displacement ring frame. A spring member is installed on the B sealing ring, and the other end of the spring member is connected to a moving disk. A protruding convex ring is installed at the far end of the moving disk, and a plurality of guide blades are arranged inside.

[0011] Preferably, an annular ball ring frame is provided at the tangent position between the ball, the liquid inlet valve body and the liquid outlet valve body.

[0012] Preferably, a sealing filler is installed in the gap between the valve stem and the valve seat.

[0013] Preferably, a through infusion channel is provided between the rotating disk, the sphere and the movable disk.

[0014] Preferably, A sealing rings are symmetrically installed at the connection gap between the steering ring frame and the turntable.

[0015] Preferably, the specifications of the steering ring frame and the turntable match, and the rotation angle of the two is 360°.

[0016] Preferably, the spiral blades are arranged in six groups in total, and the array is installed on the inner wall of the steering ring frame.

[0017] Preferably, a movable gap is left between the movable disk and the displacement ring frame.

[0018] Preferably, the spring member is an elastic member, and the stroke length of the movable plate is the same as the deformation amplitude of the spring member.

[0019] Preferably, the convex ring is attached to the inner wall of the liquid outlet valve body, and the convex ring is laterally displaced along the inner wall of the liquid outlet valve body.

[0020] The above technical solution of the present invention has the following beneficial technical effects:

[0021] 1. Improve the ball valve by setting a liquid inlet mechanism and a liquid outlet mechanism in the liquid inlet valve body and the liquid outlet valve body respectively, so as to improve the impact resistance of the valve cavity when the auxiliary medium is transmitted in the ball valve, reduce the pressure in the valve cavity, reduce the loss of the valve cavity during the medium transmission process, and improve the service life of the ball valve.

[0022] 2. The liquid inlet mechanism and liquid outlet mechanism of the liquid inlet valve body and the liquid outlet valve body are independently arranged to buffer the impact force of medium transmission in the front and rear valve bodies respectively, and have high independence. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0025] Figure 3 It is a cross-sectional structural schematic diagram of the present invention;

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the present invention.

[0027] Reference numerals:

[0028] 1. Liquid inlet valve body; 2. Liquid outlet valve body; 3. Valve seat; 41. Handle; 42. Valve stem; 43. Ball; 44. Ball ring frame; 5. Liquid inlet mechanism; 51. Steering ring frame; 52. A sealing ring; 53. Turntable; 54. Bearing; 55. Spiral blade; 6. Liquid outlet mechanism; 61. Displacement ring frame; 62. B sealing ring; 63. Spring part; 64. Moving disk; 65. Convex ring; 66. Guide blade. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0030] like Figure 1-2 As shown, a high-pressure ball valve with a pressure-reducing and shock-resistant valve cavity proposed by the present invention comprises a liquid inlet valve body 1 and a liquid outlet valve body 2 which are arranged in combination, a valve seat 3 is installed on the top of the connection between the liquid inlet valve body 1 and the liquid outlet valve body 2, an opening and closing mechanism is arranged on the valve seat 3, and the opening and closing mechanism comprises a valve stem 42 installed inside the valve seat 3, a handle 41 is installed on the top of the valve stem 42, and one end of the valve stem 42 which penetrates into the valve cavity is connected to a ball 43 with a hollow channel;

[0031] A liquid inlet mechanism 5 is disposed inside the liquid inlet valve body 1 , and a liquid outlet mechanism 6 is disposed inside the liquid outlet valve body 2 .

[0032] It should be noted that a through infusion channel is provided between the rotating disk 53 , the ball 43 and the movable disk 64 , and the medium transmitted by the ball valve passes through the rotating disk 53 of the liquid inlet valve body 1 , the hollow channel of the ball 43 and the movable disk 4 of the liquid outlet valve body 2 in sequence.

[0033] In this embodiment, the ball valve is improved by providing a liquid inlet mechanism 5 and a liquid outlet mechanism 6 in the liquid inlet valve body 1 and the liquid outlet valve body 2, respectively, to improve the impact resistance of the valve cavity when the auxiliary medium is transmitted in the ball valve, thereby reducing the pressure in the valve cavity and reducing the loss of the valve cavity during the medium transmission process, thereby increasing the service life of the ball valve.

[0034] It is necessary to add that:

[0035] 1. In order to improve the installation sealing of the ball 43 between the liquid inlet valve body 1 and the liquid outlet valve body 2, further, an annular ball ring frame 44 is provided at the tangent position between the ball 43 and the liquid inlet valve body 1 and the liquid outlet valve body 2; during the rotation of the ball 43, the hollow part of the ball ring frame 44 can assist the rotation of the ball 43.

[0036] 2. In order to improve the sealing performance of the valve seat 3, a sealing filler is further installed at the gap between the valve stem 42 and the valve seat 3 to prevent leakage at the rotating gap of the valve stem 42 and ensure the sealing performance of the valve body.

[0037] like Figure 3-4 As shown, the liquid inlet mechanism 5 includes a steering ring frame 51 installed inside the liquid inlet valve body 1, a bearing 54 is provided in the middle of the steering ring frame 51, a turntable 53 rotating along the inner wall of the steering ring frame 51 is sleeved on the outside of the bearing 54, and a plurality of protruding spiral blades 55 are installed in the channel of the turntable 53.

[0038] As a working example of the liquid inlet mechanism 5: when the transmitted medium passes through the liquid inlet valve body 1, the impact force generated by the medium flow acts on the spiral blades 55 inside the turntable 53, and the blades with a spiral structure play a role in guiding the medium, changing the flow direction of the transmitted medium to the vortex direction. At the same time, due to the impact force acting on the blades, the blades are driven to drive the turntable 53 to rotate in the steering ring frame 51, thereby consuming the impact force, reducing the impact of the medium transmission on the valve cavity at the liquid inlet valve body 1, and improving the impact resistance of the liquid inlet valve body 1.

[0039] As an example of sealing between the steering ring frame 51, the turntable 53 and the liquid inlet valve body 1: A sealing ring 52 is symmetrically installed at the connection gap between the steering ring frame 51 and the turntable 53. The A sealing ring 52 blocks the gap between the three to prevent the medium from penetrating into the rotating part through the A sealing ring 52 during the rotation of the turntable 53.

[0040] The specifications of the steering ring frame 51 and the turntable 53 match each other. During the rotation process, bearings 54 are arranged in the middle of the steering ring frame 51 and the turntable 53. The two sides of the bearings 54 are symmetrical structures, balanced and stable, and the auxiliary turntable 53 rotates 360° in the steering ring frame 51.

[0041] In order to improve the medium vortex guiding performance, further, six groups of spiral blades 55 are provided, and the array is installed on the inner wall of the steering ring frame 51. When the medium passes through the spiral structure blades, the spiral is propelled to convert the medium into vortex propulsion.

[0042] like Figure 3-4As shown, the liquid outlet mechanism 6 includes a displacement ring frame 61 installed inside the liquid inlet valve body 1, and B sealing rings 62 are symmetrically arranged at both ends of the inner wall of the displacement ring frame 61. A spring member 63 is installed on the B sealing ring 62. The other end of the spring member 63 is connected to a moving disk 64. A protruding convex ring 65 is installed at the far end of the moving disk 64, and a plurality of guide blades 66 are arranged inside.

[0043] As a working example of the liquid outlet mechanism 6: the medium is transported to the liquid outlet valve body 1 after passing through the liquid inlet valve body 1 and the ball 43. The liquid outlet valve body 1 serves as the liquid outlet end of the connecting pipe and is also impacted by the medium during the transmission process. After the medium is input into the movable disk 64, since the guide blade 66 is a convex structure, the impact force directly acts on the guide blade 66 to generate a certain thrust. At this time, the movable disk 64 drives the spring part 63 to deform. The spring part 63 is an elastic part, which drives it to stretch. During the movement, the thrust generated by the impact force acting on the guide blade 66 is consumed, thereby improving the impact resistance of the valve cavity at the liquid outlet valve body 2.

[0044] It should be noted that the spring member 63 produces different deformation amplitudes depending on the impact force of the medium, wherein the stroke length of the movable plate 64 is the same as the deformation amplitude of the spring member 63 , and the maximum stroke is the position where the end of the movable plate 64 contacts another B sealing ring 62 in the displacement ring frame 61 .

[0045] There is an active gap between the moving plate 64 and the displacement ring frame 61 , and the length of the active gap is the same as the stretching deformation amplitude of the spring member 63 .

[0046] It should be added that the convex ring 65 is attached to the inner wall of the liquid outlet valve body 2, and the convex ring 65 is laterally displaced along the inner wall of the liquid outlet valve body 2. The function of the convex ring 65 is to prevent the medium from penetrating into the active gap between the moving disk 64 and the displacement ring frame 61 during the displacement of the moving disk 64, thereby playing the role of closing the gap and assisting in guiding.

[0047] In another example, when the medium is transmitted, the ball 43 in the valve body rotates to close the channel, and the medium is no longer transmitted. At this time, the spring member 63 is no longer restricted in stretching by the thrust generated by the impact of the medium and returns to its initial state. The movable disk 64 also returns to its initial position, waiting to buffer the impact force generated by the medium transmission during the subsequent transmission process.

[0048] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.

Claims

1. A high-pressure ball valve with a pressure-reducing and shock-resistant valve chamber, characterized in that: The invention comprises a liquid inlet valve body (1) and a liquid outlet valve body (2) which are arranged in combination, a valve seat (3) being installed at the top of the connection between the liquid inlet valve body (1) and the liquid outlet valve body (2), an opening and closing mechanism being arranged on the valve seat (3), the opening and closing mechanism comprising a valve stem (42) installed inside the valve seat (3), a handle (41) being installed at the top of the valve stem (42), and a ball (43) having a hollow passage being connected to one end penetrating into the valve cavity; A liquid inlet mechanism (5) is arranged inside the liquid inlet valve body (1), and the liquid inlet mechanism (5) comprises a steering ring frame (51) installed inside the liquid inlet valve body (1), a bearing (54) is arranged in the middle of the steering ring frame (51), a rotating disk (53) rotating along the inner wall of the steering ring frame (51) is sleeved on the outside of the bearing (54), and a plurality of protruding spiral blades (55) are installed in the channel of the rotating disk (53); A liquid outlet mechanism (6) is arranged inside the liquid outlet valve body (2), and the liquid outlet mechanism (6) comprises a displacement ring frame (61) installed inside the liquid outlet valve body (2), B sealing rings (62) are symmetrically arranged at both ends of the inner wall of the displacement ring frame (61), a spring member (63) is installed on the B sealing ring (62), the other end of the spring member (63) is connected to a moving disk (64), a protruding convex ring (65) is installed at the far end of the moving disk (64), and a plurality of guide blades (66) are arranged inside.

2. A high-pressure ball valve with a pressure-reducing and shock-resistant valve chamber according to claim 1, characterized in that: An annular ball ring frame (44) is provided at the tangent position between the ball (43) and the liquid inlet valve body (1) and the liquid outlet valve body (2).

3. The high-pressure ball valve with a pressure-reducing and shock-resistant valve chamber according to claim 1, characterized in that: A sealing filler is installed in the gap between the valve stem (42) and the valve seat (3).

4. The high-pressure ball valve with a pressure-reducing and shock-resistant valve chamber according to claim 1, characterized in that: A through infusion channel is provided between the rotating disk (53), the sphere (43) and the moving disk (64).

5. The high-pressure ball valve with a pressure-reducing and shock-resistant valve chamber according to claim 1, characterized in that: A sealing ring (52) is symmetrically installed at the connection gap between the steering ring frame (51) and the rotating disk (53).

6. The high-pressure ball valve with a pressure-reducing and shock-resistant valve chamber according to claim 1, characterized in that: The specifications of the steering ring frame (51) and the rotating disk (53) match each other, and the rotation angle of the two is 360°.

7. The high-pressure ball valve with a pressure-reducing and shock-resistant valve chamber according to claim 1, characterized in that: The spiral blades (55) are provided in six groups in total and are installed in an array on the inner wall of the steering ring frame (51).

8. The high-pressure ball valve with a pressure-reducing and shock-resistant valve chamber according to claim 1, characterized in that: A movable gap is left between the movable plate (64) and the displacement ring frame (61).

9. The high-pressure ball valve with a pressure-reducing and shock-resistant valve chamber according to claim 1, characterized in that: The stroke length of the movable plate (64) is the same as the deformation amplitude of the spring member (63).

10. The high-pressure ball valve with a pressure-reducing and shock-resistant valve chamber according to claim 1, characterized in that: The convex ring (65) is attached to the inner wall of the liquid outlet valve body (2), and the convex ring (65) is laterally displaced along the inner wall of the liquid outlet valve body (2).

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