High-pressure-resistant butterfly ball valve
By adopting a butterfly flange design with a bow-shaped structure and a return spring system in the butterfly ball valve, the problem of poor sealing in high-pressure fluid transportation is solved, and higher sealing performance and stability are achieved.
Patent Information
- Application Number
- CN202520000646.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-01-02
AI Technical Summary
Existing butterfly ball valves suffer from fluid leakage and poor sealing performance during high-pressure fluid transportation, especially at the connection between the butterfly flange structure and the valve body.
The butterfly flange design, which adopts a bow-shaped structure, enhances the sealing between the butterfly flange and the ball valve device through the cooperation of the groove and the retaining ring, combined with the sliding of the return spring and the sector column. It also uses the guide ring and guide block to reduce the direct impact of high pressure fluid.
It effectively reduces fluid loss between the ball valve and the valve pipe under high pressure conditions, improves sealing performance and stability, and enhances the sealing effect of the butterfly flange structure.
Smart Images
Figure CN223595045U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to valve technical field especially relates to a high pressure butterfly ball valve. BACKGROUND
[0002] High pressure ball valve is the valve that the opening and closing part is driven by the valve rod and rotates around the axis of the valve rod, is used for hydraulic machinery equipment, hydraulic switch, natural gas etc., high pressure ball valve appeared in the 1950s, along with the rapid development of science and technology, the continuous improvement of production technology and product structure, in the short 40 years, high pressure ball valve has rapidly developed into a kind of main valve.
[0003] At present, butterfly ball valve adopts ball metal piece and valve body shell to open and close fluid, the connection between the metal is matched, in the process of high pressure fluid conveying, there will be fluid leakage loss caused by gap, and the connection between butterfly flange structure and valve body main part adopts single fixed bolt connection, the gap of the two can only rely on the tightening degree of fixed bolt to seal, and the sealing effect is poor. UTILITY MODEL CONTENTS
[0004] The skilled person provides a high pressure butterfly ball valve to solve the problems raised in the background art.
[0005] To solve the above technical problems, the utility model provides a high pressure butterfly ball valve, including ball valve device and butterfly flange structure, the left and right two ends of ball valve device are all provided with butterfly flange structure, and the two groups of butterfly flange structure are symmetrically arranged, and the ball valve device includes valve pipe, sleeve seat, reinforcing rib, bayonet, sealing ring, positioning slot, positioning column, rotating rod, ring disc, bolt hole, clasp one, clamping groove one, sector hole, valve hole and spherical valve, the left and right two ends of valve pipe are all provided with bayonet, the bayonet is provided with sealing ring, the sleeve seat is provided with rotatable rotating rod, the left and right two ends of valve pipe are fixedly connected ring disc, the ring disc is provided with a plurality of bolt holes along the edge ring, the middle part of ring disc is provided with valve hole, the ring disc is annularly provided with a plurality of sector holes, the sector hole is correspondingly arranged with sealing ring, the ring disc is provided with clamping groove one on the side of butterfly flange structure, and the ring disc is fixedly installed clasp one on the side of butterfly flange structure;
[0006] The butterfly flange structure includes a flange plate, a fixing bolt group, a clamping groove two, a clamping ring two, a ring groove, a ring opening, a pressure receiving disc, a water passing hole, a sector column, a flow guide ring, a flow guide block, a taper ring and a reset spring, the flange plate is provided with a plurality of fixing bolt groups along the edge of the ring, the fixing bolt group is provided correspondingly with a bolt hole, the flange plate is provided with a clamping groove two on the side close to the ball valve device, the clamping groove two is provided correspondingly with a clamping ring one, the flange plate is fixedly installed with a clamping ring two on the side close to the ball valve device, the clamping ring two is provided correspondingly with a clamping groove one, so that an arch-shaped structure is formed between the flange plate and the ring disc, and the sealing property between the butterfly flange structure and the ball valve device is strengthened, the middle part of the flange plate is fixedly installed with the taper ring, the taper ring is used for connecting the high-pressure pipe, the ring groove is formed in the middle part of the end surface of the side close to the butterfly flange structure of the taper ring, the reset spring is fixedly installed in the middle part of the end surface of the side close to the butterfly flange structure of the sector column, the reset spring passes through the sector hole and is provided correspondingly with a sealing ring, the inner ring wall surface of the taper ring is provided with the ring opening, the ring opening communicates the ring channel of the taper ring with the ring groove, the ring opening is provided with the pressure receiving disc which can slide freely, the middle part of the pressure receiving disc is provided with a plurality of water passing holes.
[0007] In a preferred embodiment: the sleeve is fixedly installed in the middle part of the upper end of the valve pipe, and a plurality of reinforcing ribs are arranged on the side end of the sleeve to enhance the fixing stability between the sleeve and the valve pipe.
[0008] In a preferred embodiment: the cross section of the sealing ring is triangular, so that the gap between the ball valve and the valve pipe is waterproofed.
[0009] In a preferred embodiment: a positioning groove is formed in the middle part of the inner tube bottom of the valve pipe, a rotatable positioning column is arranged in the positioning groove, the upper end of the positioning column is fixedly installed with the ball valve, and the ball valve is fixedly connected with the rotating rod.
[0010] In a preferred embodiment: a plurality of sector columns are arranged in the ring groove, the top part of the groove of the ring groove is divided by a plurality of connecting rods, the groove opening of the ring groove is arranged in a sector structure, so that the sector columns can slide correspondingly with the sector groove opening of the ring groove.
[0011] In a preferred embodiment: the flow guide block is fixedly installed in the middle part of the side end surface of the pressure receiving disc close to the ball valve device, and the flow guide ring is fixedly installed on the side end surface of the pressure receiving disc close to the ball valve device, the flow guide ring is arranged in the taper ring, the flow guide ring and the flow guide block are used for guiding the fluid in the pipeline, so that the direct impact of the high-pressure fluid on the pressure receiving disc is reduced, and damage is caused.
[0012] Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:
[0013] 1. When this utility model is used, the second groove and the first retaining ring are set in a corresponding manner, and the second retaining ring and the first groove are set in a corresponding manner, forming a bow-shaped structure between the flange and the ring plate, thereby enhancing the sealing performance between the butterfly flange structure and the ball valve device.
[0014] 2. When this utility model is used, the high-pressure fluid in the pipeline enters the ball valve device and applies an impact force to the pressure plate. The pressure plate then drives the sector column to slide towards one side of the ball valve device in the annular groove within the annular opening, and transmits the impact force to the return spring. At this time, the sealing ring is subjected to the elastic deformation and return force of the return spring, while also bearing the impact force from the fluid, so that the sealing ring and the ball valve come into close contact, thereby increasing the tightness between the ball valve and the valve pipe and reducing fluid loss between the ball valve and the valve pipe due to high pressure. Attached Figure Description
[0015] Fig. 1 This is a structural diagram provided in this application;
[0016] Fig. 2 This is a schematic diagram of the ball valve device provided in this application;
[0017] Fig. 3 This is a cross-sectional view of the ball valve device provided in this application;
[0018] Fig. 4 This is a structural schematic diagram of the butterfly flange structure provided in this application;
[0019] Fig. 5 This is a cross-sectional view of the butterfly flange structure provided in this application;
[0020] In the diagram: 1. Ball valve assembly; 2. Butterfly flange structure;
[0021] 11. Valve pipe; 12. Sleeve; 13. Reinforcing rib; 14. Bayonet; 15. Sealing ring; 16. Positioning groove; 17. Positioning pin; 18. Rotating rod; 19. Ring disc; 110. Bolt hole; 111. Snap ring one; 112. Snap groove one; 113. Sector hole; 114. Valve hole; 115. Ball valve;
[0022] 21. Flange; 22. Fixing bolt assembly; 23. Second retaining groove; 24. Second retaining ring; 25. Ring groove; 26. Ring opening; 27. Pressure plate; 28. Water passage hole; 29. Sector-shaped column; 210. Flow guide ring; 211. Flow guide block; 212. Conical ring; 213. Return spring. Detailed Implementation
[0023] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments, and based on the embodiments of the present application, all the other embodiments obtained by those of ordinary skill in the art without creative labor fall within the protection scope of the present application.
[0024] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional 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 devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0025] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be broadly understood, for example, "connected" can be wall-mounted connection, can also be detachable connection, or integral connection, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication between two elements inside, for those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0026] Please refer to Figs. 1-5In this embodiment, a high-pressure-resistant butterfly ball valve is provided, which comprises a ball valve device 1 and a butterfly flange structure 2, the left and right ends of the ball valve device 1 are provided with the butterfly flange structure 2, and the two groups of butterfly flange structures 2 are symmetrically arranged left and right, the ball valve device 1 comprises a valve pipe 11, a sleeve 12, a reinforcing rib 13, a bayonet 14, a sealing ring 15, a positioning notch 16, a positioning column 17, a rotating rod 18, a ring disc 19, a bolt hole 110, a clamping ring 111, a clamping groove 112, a fan-shaped hole 113, a valve hole 114 and a spherical valve 115, the upper end of the valve pipe 11 is fixedly installed with the sleeve 12 in the middle, the side end of the sleeve 12 is provided with a plurality of reinforcing ribs 13, the reinforcing ribs 13 can strengthen the fixation stability between the sleeve 12 and the valve pipe 11, the left and right ends of the valve pipe 11 are provided with the bayonet 14, the bayonet 14 is provided with the sealing ring 15, the cross section of the sealing ring 15 is triangular, thereby preventing water from entering the gap between the spherical valve 115 and the valve pipe 11, the sleeve 12 is provided with the rotating rod 18, the middle of the bottom of the valve pipe 11 is provided with the positioning notch 16, the positioning notch 16 is provided with the rotating positioning column 17, the upper end of the positioning column 17 is fixedly installed with the spherical valve 115, the spherical valve 115 is fixedly connected with the rotating rod 18, the left and right ends of the valve pipe 11 are fixedly connected with the ring disc 19, the ring disc 19 is provided with a plurality of bolt holes 110 along the edge, the middle of the ring disc 19 is provided with the valve hole 114, the ring disc 19 is provided with a plurality of fan-shaped holes 113, the fan-shaped holes 113 are correspondingly provided with the sealing ring 15, the ring disc 19 is provided with the clamping groove 112 on one side of the butterfly flange structure 2, and the ring disc 19 is fixedly installed with the clamping ring 111 on one side of the butterfly flange structure 2.
[0027] The butterfly flange structure 2 comprises a flange plate 21, a fixing bolt group 22, a clamping groove two 23, a clamping ring two 24, a ring groove 25, a ring opening 26, a pressure plate 27, a water passing hole 28, a sector column 29, a flow guide ring 210, a flow guide block 211, a taper ring 212 and a reset spring 213, the flange plate 21 is provided with a plurality of fixing bolt groups 22 in a ring shape along the edge, the fixing bolt group 22 is arranged correspondingly to the bolt hole 110, the flange plate 21 is provided with the clamping groove two 23 on the side close to the ball valve device 1, the clamping groove two 23 is arranged correspondingly to the clamping ring one 111, the flange plate 21 is fixedly installed with the clamping ring two 24 on the side close to the ball valve device 1, the clamping ring two 24 is arranged correspondingly to the clamping groove one 112, so that the arch-shaped structure is formed between the flange plate 21 and the ring plate 19, and the sealing property between the butterfly flange structure 2 and the ball valve device 1 is further strengthened, the middle part of the flange plate 21 is fixedly installed with the taper ring 212, the taper ring 212 is used for connecting the high-pressure pipe, the ring groove 25 is arranged in the middle part of the end face close to the butterfly flange structure 2 of the taper ring 212, a plurality of sector columns 29 are arranged in the ring groove 25, the top of the groove of the ring groove 25 is divided by a plurality of connecting rods, the slot opening of the ring groove 25 is arranged in a sector shape, so that the sector column 29 can slide correspondingly to the sector slot opening of the ring groove 25, the reset spring 213 is fixedly installed on the middle part of the end face close to the butterfly flange structure 2 of the sector column 29, the reset spring 213 passes through the sector hole 113 and is arranged correspondingly to the sealing ring 15, the ring opening 26 is formed in the inner ring wall surface of the taper ring 212, the ring opening 26 communicates the ring channel of the taper ring 212 with the ring groove 25, the pressure plate 27 that can slide freely is arranged in the ring opening 26, the pressure plate 27 is fixedly connected with the plurality of sector columns 29, so that the plurality of sector columns 29 slide synchronously with the pressure plate 27, a plurality of water passing holes 28 are formed in the middle part of the pressure plate 27, the flow guide block 211 is fixedly installed on the middle part of the end face close to the ball valve device 1 of the pressure plate 27, the flow guide ring 210 is fixedly installed on the end face close to the ball valve device 1 along the edge of the pressure plate 27, the flow guide ring 210 is arranged in the taper ring 212, the flow guide ring 210 and the flow guide block 211 are used for guiding the pipeline fluid, and the direct impact of high-pressure fluid on the pressure plate 27 is reduced, so that damage is caused.
[0028] The working principle of the utility model is:
[0029] The utility model discloses when using, correspondingly set in advance through the clamping groove no. 2 23 and the snap ring no. 1 111, the snap ring no. 2 24 and the clamping groove no. 1 112 correspondingly set, form the arch shape structure between the flange plate 21 and the ring disc 19, thereby strengthen the sealing property between the butterfly flange structure 2 and the ball valve device 1, then utilize the fixed bolt group 22 on the flange plate 21 and pass through the bolt hole 110, the butterfly flange structure 2 and the ball valve device 1 precision cooperation, the pipeline and the internal thread of the conical ring 212 carry out meshing connection, when the high pressure fluid in the pipeline is in the ball valve device 1, will impact force act on the pressure plate 27, and the pressure plate 27 then drives the fan-shaped column 29 in the ring groove 25 in the ring mouth 26 to the ball valve device 1 one side sliding, and impact force transmission gives the reset spring 213, at this time, the sealing ring 15 is in the elastic deformation reset of reset spring 213 simultaneously, will bear the impact force from the fluid, make the sealing ring 15 and spherical valve 115 carry out the close contact, thereby increase the close degree between spherical valve 115 and valve pipe 11, reduce the clearance fluid loss between spherical valve 115 and valve pipe 11 under the high pressure condition.
[0030] The above, only for the preferable specific implementation mode of the utility model, but the design concept of the utility model does not limit to this, any skilled in the art technical personnel in the utility model discloses the technical range, utilize this concept to the utility model discloses the non-essential change of the utility model, all belong to the act of infringement the protection scope of the utility model.
Claims
1. A high-pressure resistant butterfly ball valve comprising a ball valve device (1) and a butterfly flange structure (2), characterized in that, Both ends of the ball valve device (1) are provided with butterfly flange structure (2), and the two groups of butterfly flange structure (2) are symmetrically arranged, the ball valve device (1) includes valve pipe (11), sleeve (12), reinforcing rib (13), bayonet (14), sealing ring (15), positioning notch (16), positioning column (17), rotating rod (18), ring disc (19), bolt hole (110), clamping ring one (111), clamping groove one (112), fan-shaped hole (113), valve hole (114) and spherical valve (115), both ends of the valve pipe (11) are provided with bayonet (14), the bayonet (14) is provided with sealing ring (15), the sleeve (12) is provided with rotatable rotating rod (18), the left and right ends of the valve pipe (11) are fixedly connected with ring disc (19), the ring disc (19) is provided with a plurality of bolt holes (110) along the edge, the middle of the ring disc (19) is provided with a valve hole (114), the ring disc (19) is annularly provided with a plurality of fan-shaped holes (113), the fan-shaped holes (113) are correspondingly arranged with the sealing ring (15), the ring disc (19) is provided with clamping groove one (112) on one side of the butterfly flange structure (2), and the ring disc (19) is fixedly installed with clamping ring one (111) on one side of the butterfly flange structure (2); The butterfly flange structure (2) includes flange plate (21), fixed bolt group (22), clamping groove two (23), clamping ring two (24), ring groove (25), ring opening (26), pressure receiving disc (27), water passing hole (28), fan-shaped column (29), flow guide ring (210), flow guide block (211), taper ring (212) and reset spring (213), the flange plate (21) is annularly provided with a plurality of fixed bolt groups (22), the fixed bolt groups (22) are correspondingly arranged with the bolt holes (110), the flange plate (21) is provided with clamping groove two (23) on one side of the ball valve device (1), the clamping groove two (23) is correspondingly arranged with the clamping ring one (111), the flange plate (21) is fixedly installed with clamping ring two (24) on one side of the ball valve device (1), the clamping ring two (24) is correspondingly arranged with the clamping groove one (112), so as to form an arch-shaped structure between the flange plate (21) and the ring disc (19), the middle of the flange plate (21) is fixedly installed with the taper ring (212), the ring groove (25) is formed in the middle of the end face of the taper ring (212) close to one side of the butterfly flange structure (2), the reset spring (213) is fixedly installed in the middle of the end face of the fan-shaped column (29) close to one side of the butterfly flange structure (2), the reset spring (213) passes through the fan-shaped hole (113) and is correspondingly arranged with the sealing ring (15), the inner ring wall surface of the taper ring (212) is provided with ring opening (26), the ring opening (26) communicates the ring channel of the taper ring (212) with the ring groove (25), the ring opening (26) is provided with a pressure receiving disc (27) which can slide freely, the pressure receiving disc (27) is fixedly connected with a plurality of fan-shaped columns (29), and a plurality of water passing holes (28) are formed in the middle of the pressure receiving disc (27).
2. A high pressure butterfly valve according to claim 1, characterized in that The sleeve (12) is fixedly installed on the middle of the upper end of the valve pipe (11), and the side end of the sleeve (12) is provided with a plurality of reinforcing ribs (13).
3. The high pressure butterfly valve according to claim 1, wherein The cross section of the sealing ring (15) is triangular.
4. The high pressure butterfly valve of claim 1, wherein, A positioning slot (16) is formed in the middle of the bottom of the inner tube of the valve pipe (11), a rotatable positioning column (17) is arranged in the positioning slot (16), the upper end of the positioning column (17) is fixedly installed with a spherical valve (115), and the spherical valve (115) is fixedly connected with a rotating rod (18).
5. The high pressure butterfly valve according to claim 1, wherein, A plurality of sector columns (29) are arranged in the ring groove (25), the top of the groove of the ring groove (25) is segmented by a plurality of connecting rods, the groove opening of the ring groove (25) is provided with a sector structure, and the sector columns (29) slide in the sector groove openings of the ring groove (25) in a corresponding mode.
6. A high pressure butterfly valve according to claim 1, wherein A flow guide block (211) is fixedly installed in the middle of the side end face of the ball valve device (1) of the pressure receiving disc (27), a flow guide ring (210) is fixedly installed along the edge of the side end face of the ball valve device (1) of the pressure receiving disc (27), and the flow guide ring (210) is arranged in a taper ring (212).