Bidirectional sealing anti-vortex flow guide butterfly valve

Abstract

The utility model provides a bidirectional sealing anti-vortex diversion butterfly valve which comprises a valve body, a welding cylinder and a conical reinforcing cylinder, a sealing connecting part is installed at the upper end of the valve body, a gear box is installed at the upper end of the sealing connecting part, a valve rod is installed among the gear box, the sealing connecting part and the valve body, and a butterfly plate is longitudinally arranged in the valve body. A first sealing flange is fixed to the left end of the valve body, a second sealing flange is fixed to the right end of the valve body, an annular mounting groove is formed in the second sealing flange, and a reinforcing ring and a rubber ring are fixed to the left end of the inner side of the annular mounting groove. The utility model designs a combined spoiler structure which can effectively prevent vortexes from being formed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a bidirectional sealing anti-vortex flow-guiding butterfly valve and belongs to the technical field of butterfly valves. BACKGROUND

[0002] With the continuous improvement of industrial automation level and the increasingly strict requirement for environmental protection, the traditional one-way sealing butterfly valve has been difficult to meet the complex needs of modern engineering projects. In order to overcome the problems of the traditional butterfly valve, such as not tight sealing and easy to produce vortex, the bidirectional sealing flow-guiding butterfly valve emerges as the times require. It is a valve specially designed for controlling and regulating the flow of medium in the pipeline, which combines the functions of bidirectional sealing, the ability to prevent vortex at low flow and the characteristics of optimizing fluid dynamics.

[0003] Although the existing bidirectional sealing flow-guiding butterfly valve can meet the basic needs to some extent, there are still some limitations and improvement space in actual application, such as: limited anti-vortex ability, vortex phenomenon cannot be completely eliminated under certain working conditions, traditional flow-guiding structure is difficult to effectively prevent vortex formation during the transmission process of low-flow or high-viscosity medium, especially under the condition of partial opening of the valve. Therefore, there is an urgent need for a bidirectional sealing anti-vortex flow-guiding butterfly valve to solve the above problems. CONTENT OF THE UTILITY MODEL

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a bidirectional sealing anti-vortex flow-guiding butterfly valve to solve the problems raised in the background art. The utility model designs a combined spoiler structure, which can effectively prevent vortex formation.

[0005] In order to achieve the above-mentioned purpose, the utility model is implemented by the following technical scheme: a bidirectional sealing anti-vortex flow-guiding butterfly valve, comprising a valve body, a welded cylinder and a conical reinforcing cylinder, a sealing connection part is installed on the upper end of the valve body, a gear box is installed on the upper end of the sealing connection part, a valve rod is installed between the gear box, the sealing connection part and the valve body, a butterfly plate is longitudinally arranged in the valve body, a first sealing flange is fixed to the left end of the valve body, a second sealing flange is fixed to the right end of the valve body, an annular mounting groove is formed in the second sealing flange, a reinforcing ring and a rubber ring are fixed to the left end of the inner side of the annular mounting groove, a connecting convex ring and a welded cylinder are fixed to the inner side of the reinforcing ring, a plurality of airfoil spoilers are fixed at equal angles inside the welded cylinder, a conical reinforcing cylinder is longitudinally welded between the right sides of the plurality of airfoil spoilers, a cross-grid spoiler and a multi-hole spoiler are longitudinally fixed inside the conical reinforcing cylinder.

[0006] Further, the upper end of the butterfly plate is connected with the valve rod, the lower end of the valve body is fixed with a bottom cover, the bottom cover is slidably installed with an auxiliary rod, and the other end of the auxiliary rod penetrates through the valve body and is fixed to the lower end of the butterfly plate.

[0007] Further, the second bevel gear is installed on the upper end of the valve rod, the twist disc is installed on the right end of the gear box, the left end of the twist disc penetrates the gear box and is connected with the first bevel gear, and the first bevel gear is in meshing transmission with the second bevel gear.

[0008] Further, two O-rings are arranged at the internal connection of the valve rod and the sealing connection part.

[0009] Further, the welding cylinder is closely combined with the inner wall of the valve body.

[0010] Further, the plurality of airfoil spoiler plates are arranged on the left side of the cross grid spoiler plate, and the plurality of porous spoiler plates are arranged on the right side of the cross grid spoiler plate.

[0011] The beneficial effects of the utility model are as follows: the utility model discloses a bidirectional sealing anti-vortex flow-guiding butterfly valve, the valve body, the butterfly plate, the welding cylinder, the airfoil spoiler plate, the conical reinforcing cylinder, the cross grid spoiler plate, the porous spoiler plate, the connecting convex ring and the reinforcing ring are added, and through our design improvement and actual use, the device is reasonable in structure, good in practicality, a combined spoiler plate structure is designed, is composed of the airfoil spoiler plate, the cross grid spoiler plate and the porous spoiler plate, can decompose vortex layer by layer, effectively prevents vortex formation, guarantees the uniform distribution of subsequent fluid, and vortex phenomenon does not occur. BRIEF DESCRIPTION OF DRAWINGS

[0012] Other features, objects and advantages of the utility model will become more apparent through reading the following detailed description of non-restrictive embodiments with reference to the accompanying drawings:

[0013] Fig. 1 It is whole structure perspective view of the utility model discloses a bidirectional sealing anti-vortex flow-guiding butterfly valve;

[0014] Fig. 2 It is cross section schematic view of the utility model discloses a bidirectional sealing anti-vortex flow-guiding butterfly valve;

[0015] Fig. 3 It is cross grid spoiler plate split schematic view of the utility model discloses a bidirectional sealing anti-vortex flow-guiding butterfly valve.

[0016] In the drawing: 1-gear box, 2-valve rod, 3-second bevel gear, 4-first bevel gear, 5-twist disc, 6-sealing connection part, 7-O-ring, 8-valve body, 9-first sealing flange, 10-butterfly plate, 11-bottom cover, 12-second sealing flange, 13-welding cylinder, 14-airfoil spoiler plate, 15-conical reinforcing cylinder, 16-cross grid spoiler plate, 17-porous spoiler plate, 18-connecting convex ring, 19-annular mounting groove, 20-reinforcing ring, 21-rubber ring. DETAILED DESCRIPTION

[0017] In order to make the technical means, creation features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0018] Please refer to Figs. 1-3 The utility model provides a technical scheme: a bidirectional sealing anti-vortex flow guide butterfly valve, including valve body 8, welding cylinder 13 and conical reinforcing cylinder 15, the upper end of valve body 8 is installed with sealing connecting portion 6, the upper end of sealing connecting portion 6 is installed with gear box 1, the gear box 1 is installed between sealing connecting portion 6 and valve body 8 with valve rod 2, the longitudinal butterfly plate 10 is arranged in valve body 8, the left end of valve body 8 is fixed with first sealing flange 9, the right end of valve body 8 is fixed with second sealing flange 12, annular installation groove 19 is set up in second sealing flange 12, the left end of the inner side of annular installation groove 19 is fixed with reinforcing ring 20 and rubber ring 21, the inner side of reinforcing ring 20 is fixed with connecting convex ring 18 and welding cylinder 13, a plurality of airfoil spoiler 14 are fixed at equal angles in welding cylinder 13, the right side between a plurality of airfoil spoiler 14 is longitudinally welded with conical reinforcing cylinder 15, the inside of conical reinforcing cylinder 15 is longitudinally fixed with cross grid spoiler 16 and multi-hole spoiler 17, and the design solves the problems of limited anti-vortex capacity of traditional device and difficult effective prevention of vortex formation of flow guide structure.

[0019] As the first embodiment of the utility model: the upper end of butterfly plate 10 is connected with valve rod 2, the lower end of valve body 8 is fixed with bottom cover 11, the upper end of bottom cover 11 is slidably installed with auxiliary rod, and the other end of auxiliary rod penetrates valve body 8 and is fixed with the lower end of butterfly plate 10, the upper end of butterfly plate 10 is connected with valve rod 2 by adding, the other end of auxiliary rod penetrates valve body 8 and is fixed with the lower end of butterfly plate 10, and then when valve rod 2 rotates, butterfly plate 10 can be driven to rotate in valve body 8.

[0020] The valve rod 2 is provided with a second bevel gear 3 at the upper end, the gear box 1 is provided with a twisting disc 5 at the right end, the twisting disc 5 is connected with the first bevel gear 4 through the gear box 1 at the left end, the first bevel gear 4 is meshed with the second bevel gear 3 for transmission, the first bevel gear 4 is meshed with the second bevel gear 3 for transmission through the addition, and the second bevel gear 3 is rotated when the first bevel gear 4 rotates. The valve rod 2 and the sealing connection part 6 are provided with two O-rings 7 at the internal connection position, the sealing property between the valve rod 2 and the sealing connection part 6 is good through the addition of the two O-rings 7. The welding cylinder 13 is closely combined with the inner wall of the valve body 8, the wing-shaped spoiler 14, the cross grid spoiler 16 and the porous spoiler 17 are arranged through the addition of the welding cylinder 13 closely combined with the inner wall of the valve body 8. The wing-shaped spoilers 14 are arranged at the left side of the cross grid spoiler 16, and the porous spoiler 17 is arranged at the right side of the cross grid spoiler 16. When the water flow passes through the wing-shaped spoiler 14, the pressure distribution on the surface of the wing-shaped spoiler 14 changes, the flow direction of the fluid changes, the core of the original vortex is destroyed, in addition, the design of the wing-shaped spoiler can reduce the resistance and improve the flow efficiency of the fluid. When the water flow encounters the cross grid spoiler 16, the water flow is divided and re-converged at each intersection, the repeated division and combination effectively destroy the vortex structure and promote the full mixing of the fluid. When the water flow passes through the small holes of the porous spoiler 17, the water flow is divided into multiple small flow beams, the flow beams collide and mix with each other, and the original vortex is effectively dispersed.

[0021] As a second embodiment of the utility model: in actual use, the twisting disc 5 is rotated, the first bevel gear 4 is rotated, the second bevel gear 3 is meshed with the first bevel gear 4 and is rotated, the valve rod 2 is rotated, the valve rod 2 is rotated and the butterfly plate 10 is rotated, when the water flow passes through the wing-shaped spoiler 14, the pressure distribution on the surface of the wing-shaped spoiler 14 changes, the flow direction of the fluid changes, the core of the original vortex is destroyed, in addition, the design of the wing-shaped spoiler can reduce the resistance and improve the flow efficiency of the fluid. When the water flow encounters the cross grid spoiler 16, the water flow is divided and re-converged at each intersection, the repeated division and combination effectively destroy the vortex structure and promote the full mixing of the fluid. When the water flow passes through the small holes of the porous spoiler 17, the water flow is divided into multiple small flow beams, the flow beams collide and mix with each other, and the original vortex is effectively dispersed.

[0022] The basic principle and main features of the present application and the advantages of the present application are shown and described above. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

[0023] In addition, it should be understood that, although the present application is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A bi-directional seal anti-swirl butterfly valve comprising a valve body (8), a welded cylinder (13) and a conical reinforcing cylinder (15), characterized in that: The upper end of the valve body (8) is provided with a sealing connection part (6), the upper end of the sealing connection part (6) is provided with a gear box (1), the gear box (1), the sealing connection part (6) and the valve body (8) are provided with a valve rod (2), and the valve body (8) is longitudinally provided with a butterfly plate (10). The left end of the valve body (8) is fixedly provided with a first sealing flange (9), the right end of the valve body (8) is fixedly provided with a second sealing flange (12), the second sealing flange (12) is provided with an annular mounting groove (19), the left end of the inner side of the annular mounting groove (19) is fixedly provided with a reinforcing ring (20) and a rubber ring (21), the inner side of the reinforcing ring (20) is fixedly provided with a connecting convex ring (18) and a welding cylinder (13), a plurality of wing-shaped spoiler plates (14) are fixedly arranged in the welding cylinder (13) at equal angles, a plurality of the wing-shaped spoiler plates (14) are longitudinally welded with a conical reinforcing cylinder (15) between the right sides of the wing-shaped spoiler plates (14), and the conical reinforcing cylinder (15) is longitudinally fixedly provided with a cross grid spoiler plate (16) and a porous spoiler plate (17).

2. The bidirectional sealing anti-vortex flow-guiding butterfly valve according to claim 1, characterized in that: The upper end of the butterfly plate (10) is connected with the valve rod (2), the lower end of the valve body (8) is fixedly provided with a bottom cover (11), the upper end of the bottom cover (11) is slidably provided with an auxiliary rod, and the other end of the auxiliary rod penetrates through the valve body (8) and is fixedly connected with the lower end of the butterfly plate (10).

3. The bidirectional sealing anti-vortex butterfly valve according to claim 1, characterized in that: The upper end of the valve rod (2) is provided with a second bevel gear (3), the right end of the gear box (1) is provided with a twisting disc (5), the left end of the twisting disc (5) penetrates through the gear box (1) and is connected with a first bevel gear (4), and the first bevel gear (4) is in meshing transmission with the second bevel gear (3).

4. The anti-swirl butterfly valve of claim 1, wherein: Two O-rings (7) are arranged at the inner connection of the valve rod (2) and the sealing connection part (6).

5. The bi-directional seal anti-swirl butterfly valve of claim 1, wherein: The welding cylinder (13) is tightly combined with the inner wall of the valve body (8).

6. The bi-directional seal anti-swirl butterfly valve of claim 1, wherein: A plurality of the wing-shaped spoiler plates (14) are arranged at the left side of the cross grid spoiler plate (16), and the porous spoiler plate (17) is arranged at the right side of the cross grid spoiler plate (16).

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