A large flow directional valve

Abstract

The utility model discloses a large flow reversing valve, including the reversing connection shell, the left side surface fixed intercommunication of reversing connection shell has flow liquid inlet pipe, and the right side surface fixed intercommunication of reversing connection shell has two flow liquid outlet pipes, and the inboard wall fixed connection of reversing connection shell has swivel, and the right side surface fixed intercommunication of swivel has the curved guide pipe, and the outer surface fixed connection of curved guide pipe has the first transmission gear, and the inboard wall inlay of reversing connection shell has the first bearing. The device is combined through the arc flow channel of curved guide pipe and the gradual flow channel of guide hopper, replaces the traditional right angle turning structure, reduces the local pressure loss when large flow fluid passes, significantly promotes the actual flow capacity of valve body, simultaneously, the smooth flow channel curve can reduce the scouring strength of fluid to the component, reduces the vibration and noise caused by pressure fluctuation, prolongs the service life of valve body core component, enhances the operation stability of valve body under high flow industrial working condition.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and in particular to a high-flow-rate reversing valve. Background Technology

[0002] As a core component in the field of fluid control, flow reversing valves are widely used in heavy industrial liquid transmission systems such as metallurgy and chemical industries. Their main function is to switch the direction of fluid transport in pipelines, and they are key equipment to ensure the continuous and efficient operation of industrial production systems.

[0003] Currently, most flow reversing valves use a right-angle bend structure in their flow channels. When the fluid flows through at high speed, significant local pressure loss is easily formed at the bend. This not only directly reduces the actual flow capacity of the fluid, but may also cause uneven stress on the internal components of the valve body due to pressure fluctuations, resulting in vibration or noise and affecting the overall operational stability. To address these issues, we propose a high-flow-rate reversing valve. Utility Model Content

[0004] The purpose of this invention is to provide a high-flow-rate reversing valve to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A high-flow-rate reversing valve includes a reversing connecting shell. A flow inlet pipe is fixedly connected to the left side of the reversing connecting shell, and two flow outlet pipes are fixedly connected to the right side of the reversing connecting shell. A rotary joint is fixedly connected to the inner wall of the reversing connecting shell, and a curved guide pipe is fixedly connected to the right side of the rotary joint. A first transmission gear is fixedly connected to the outer surface of the curved guide pipe. A first bearing is embedded in the inner wall of the reversing connecting shell, and a connecting rod is fixedly connected to the inner ring of the first bearing. A second transmission gear is fixedly connected to the right side of the connecting rod, and the first and second transmission gears mesh. A first motor is fixedly connected to the left side of the reversing connecting shell, and the output end of the first motor is fixedly connected to the left side of the connecting rod. Two guide funnels are fixedly connected to the inner wall of the reversing connecting shell, and a flow reversing mechanism is fixedly connected to the upper surface of the reversing connecting shell.

[0006] In a further embodiment, the flow reversing mechanism includes a second motor, a second bearing is embedded in the inner top wall of the reversing connecting shell, a third bearing is embedded in the inner bottom wall of the reversing connecting shell, and a sealing ring is fixedly connected to the left side of each guide funnel.

[0007] In a further embodiment, the inner ring of the second bearing and the inner ring of the third bearing are jointly and fixedly connected to a titanium alloy threaded rod. The upper surface of the titanium alloy threaded rod is fixedly connected to the output end of the second motor. A flow baffle is threadedly connected to the outer surface of the titanium alloy threaded rod. A sealing gasket is fixedly connected to the right side of the flow baffle.

[0008] In a further embodiment, the inner top wall and the inner bottom wall of the reversing connection shell are fixedly connected to two titanium alloy optical rods, and each of the titanium alloy optical rods is slidably connected to the flow baffle.

[0009] In a further embodiment, a positioning magnetic block is fixedly connected to the outer surface of the flow baffle, and two Hall sensors are fixedly connected to the front side of the reversing connection shell.

[0010] In a further embodiment, an encoder is fixedly connected to the left side of the first motor, and a controller is fixedly connected to the front side of the flow inlet pipe.

[0011] In a further embodiment, a first pipe connection flange is fixedly connected to the left side of the flow inlet pipe, and a second pipe connection flange is fixedly connected to the right side of each flow outlet pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This device replaces the traditional right-angle bend structure by combining the arc-shaped flow channel of the curved guide tube with the gradually changing flow channel of the guide funnel. This reduces local pressure loss when large flow rates of fluid pass through, significantly improving the actual flow capacity of the valve body. At the same time, the smooth flow channel curve reduces the scouring force of the fluid on the components, reduces vibration and noise caused by pressure fluctuations, extends the service life of the core components of the valve body, and enhances the operational stability of the valve body under high-flow industrial conditions. Attached Figure Description

[0013] Figure 1 This is a front-view three-dimensional structural diagram of a high-flow-rate reversing valve.

[0014] Figure 2 This is a schematic diagram of the front section of the reversing connection shell in a high-flow-rate reversing valve.

[0015] Figure 3 This is a side cross-sectional diagram of the sealing gasket in a high-flow-rate reversing valve.

[0016] Figure 4 This is a top-section schematic diagram of the reversing connection shell in a high-flow-rate reversing valve.

[0017] Figure 5 This is a schematic diagram of the front section of the reversing connection shell in a high-flow-rate reversing valve.

[0018] In the diagram: 1. Inlet pipe; 2. Outlet pipe; 3. Rotary joint; 4. Bent guide pipe; 5. First transmission gear; 6. First bearing; 7. Connecting rod; 8. Second transmission gear; 9. First motor; 10. Guide funnel; 11. Flow reversing mechanism; 1101. Second motor; 1102. Second bearing; 1103. Third bearing; 1104. Titanium alloy threaded rod; 1105. Flow baffle; 1106. Titanium alloy smooth rod; 1107. Sealing gasket; 1108. Sealing ring; 1109. Positioning magnetic block; 1110. Hall sensor; 12. Reversing connecting shell; 13. Encoder; 14. Controller; 15. First pipe connecting flange; 16. Second pipe connecting flange. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-5 In this utility model, a high-flow-rate reversing valve includes a reversing connecting shell 12. A flow inlet pipe 1 is fixedly connected to the left side of the reversing connecting shell 12, and two flow outlet pipes 2 are fixedly connected to the right side of the reversing connecting shell 12. A rotary joint 3 is fixedly connected to the inner wall of the reversing connecting shell 12, and a curved guide pipe 4 is fixedly connected to the right side of the rotary joint 3. A first transmission gear 5 is fixedly connected to the outer surface of the curved guide pipe 4. A first bearing 6 is embedded in the inner wall of the reversing connecting shell 12, and a connecting rod 7 is fixedly connected to the inner ring of the first bearing 6. A second transmission gear 8 is fixedly connected to the right side of the connecting rod 7, and the first transmission gear 5 meshes with the second transmission gear 8. A first motor 9 is fixedly connected to the left side of the reversing connecting shell 12, and the output end of the first motor 9 is connected to the connecting rod 7. The left side of the rod 7 is fixedly connected, and the inner wall of the reversing connecting shell 12 is fixedly connected to two guide funnels 10. The upper surface of the reversing connecting shell 12 is fixedly connected to a flow reversing mechanism 11. The first transmission gear 5 and the second transmission gear 8 and other metal components are made of titanium alloy, which can effectively reduce the impact of corrosion. The first motor 9 drives the connecting rod 7 and the second transmission gear 8 to rotate. The second transmission gear 8 drives the first transmission gear 5 and the curved guide tube 4 to rotate, thereby changing the orientation of the curved guide tube 4. By setting the curved guide tube 4 and the guide funnel 10, the local pressure when the flow fluid passes through can be reduced, thereby increasing the actual flow rate of the valve body. At the same time, the smooth flow channel curve can reduce the scouring force of the fluid on the components and reduce the vibration and noise caused by pressure fluctuations.

[0021] The flow reversing mechanism 11 includes a second motor 1101. A second bearing 1102 is embedded in the inner top wall of the reversing connecting shell 12, and a third bearing 1103 is embedded in the inner bottom wall of the reversing connecting shell 12. A sealing ring 1108 is fixedly connected to the left side of each guide funnel 10. A titanium alloy threaded rod 1104 is fixedly connected to the inner rings of the second bearing 1102 and the third bearing 1103. The upper surface of the titanium alloy threaded rod 1104 is fixedly connected to the output end of the second motor 1101. A flow baffle 1105 is threadedly connected to the outer surface of the titanium alloy threaded rod 1104. A sealing gasket 1107 is fixedly connected to the right side of the flow baffle 1105. Two titanium alloy smooth rods 1106 are fixedly connected to the inner top wall and the inner bottom wall of the reversing connecting shell 12. All 06 are slidably connected to the flow baffle 1105. The outer surface of the flow baffle 1105 is fixedly connected to a positioning magnetic block 1109. Two Hall sensors 1110 are fixedly connected to the front of the reversing connecting shell 12. The titanium alloy threaded rod 1104 is driven to rotate by the second motor 1101, which causes the titanium alloy threaded rod 1104 to drive the flow baffle 1105 to rise and fall. With the cooperation of the sealing gasket 1107 and the sealing ring 1108, one of the guide funnels 10 can be sealed to prevent leakage. By setting the positioning magnetic block 1109 and the Hall sensor 1110, when the Hall sensor 1110 detects the positioning magnetic block 1109, the Hall sensor 1110 sends a signal to the controller 14, thereby stopping the rotation of the second motor 1101. The flow baffle 1105 can be accurately stopped on the left side of the guide funnel 10.

[0022] An encoder 13 is fixedly connected to the left side of the first motor 9, a controller 14 is fixedly connected to the front of the flow inlet pipe 1, a first pipe connection flange 15 is fixedly connected to the left side of the flow inlet pipe 1, and a second pipe connection flange 16 is fixedly connected to the right side of each flow outlet pipe 2. By setting the first pipe connection flange 15 and the second pipe connection flange 16, it is convenient to connect this device to the external liquid pipeline. By setting the encoder 13, the number of rotations of the first motor 9 can be precisely controlled so that the curved guide pipe 4 is aligned with the guide funnel 10.

[0023] The working principle of this utility model is as follows: When using this device, it is connected to the external liquid pipeline via the first pipe connection flange 15 and the second pipe connection flange 16. The liquid first enters the reversing connection shell 12 through the flow inlet pipe 1. At this time, the controller 14 sends a command to the first motor 9. The output end of the first motor 9 drives the connecting rod 7 to rotate. The second transmission gear 8 on the right side of the connecting rod 7 meshes with the first transmission gear 5 on the outer surface of the curved guide tube 4, thereby driving the curved guide tube 4 to rotate so that its outlet is aligned with one of the two guide funnels 10. The two guide funnels 10 correspond to the two flow outlet pipes 2 on the right side, completing the initial guidance of the fluid. At the same time, the controller 14 starts the second motor 1101. The second motor 1101 drives the titanium alloy threaded rod 1104 to rotate. With the guiding effect of the titanium alloy smooth rod 1106, the titanium alloy threaded rod 1104 drives the flow baffle 1105 up and down. The device moves in a straight line, with the sealing gasket 1107 on its right side tightly fitting the sealing ring 1108 on the left side of the guide funnel 10, which is not aligned with the bent guide tube 4, to block the channel. Fluid can only enter the corresponding flow outlet pipe 2 through the aligned guide funnel 10 to achieve precise reversal. During the rotation of the first motor 9, the encoder 13 fixed on the left side of the first motor 9 detects the speed and angle of the first motor 9 in real time and feeds it back to the controller 14 to calibrate the position of the bent guide tube 4. The positioning magnetic block 1109 on the outer surface of the flow baffle 1105 moves with the flow baffle 1105. The two Hall sensors 1110 on the front of the reversing connecting shell 12 sense its position and feed it back to the controller 14 to ensure accurate sealing. In addition, the device replaces the traditional right-angle turning flow channel with the arc-shaped flow channel of the bent guide tube 4 and the gradual flow channel of the guide funnel 10, reducing local pressure loss and improving flow capacity.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-flow-rate reversing valve, characterized in that: The reversing connection shell (12) includes a flow inlet pipe (1) fixedly connected to the left side of the reversing connection shell (12), two flow outlet pipes (2) fixedly connected to the right side of the reversing connection shell (12), a rotary joint (3) fixedly connected to the inner wall of the reversing connection shell (12), a curved guide pipe (4) fixedly connected to the right side of the rotary joint (3), a first transmission gear (5) fixedly connected to the outer surface of the curved guide pipe (4), and a first bearing (6) embedded in the inner wall of the reversing connection shell (12). The inner ring of the first transmission gear (5) is fixedly connected to a connecting rod (7). The right side of the connecting rod (7) is fixedly connected to a second transmission gear (8). The first transmission gear (5) meshes with the second transmission gear (8). The left side of the reversing connecting shell (12) is fixedly connected to a first motor (9). The output end of the first motor (9) is fixedly connected to the left side of the connecting rod (7). The inner side wall of the reversing connecting shell (12) is fixedly connected to two guide funnels (10). The upper surface of the reversing connecting shell (12) is fixedly connected to a flow reversing mechanism (11).

2. The high-flow-rate reversing valve according to claim 1, characterized in that: The flow reversing mechanism (11) includes a second motor (1101), a second bearing (1102) is embedded in the inner top wall of the reversing connecting shell (12), a third bearing (1103) is embedded in the inner bottom wall of the reversing connecting shell (12), and a sealing ring (1108) is fixedly connected to the left side of each of the guide funnels (10).

3. A high-flow-rate reversing valve according to claim 2, characterized in that: The inner ring of the second bearing (1102) and the inner ring of the third bearing (1103) are fixedly connected to a titanium alloy threaded rod (1104). The upper surface of the titanium alloy threaded rod (1104) is fixedly connected to the output end of the second motor (1101). A flow baffle (1105) is threadedly connected to the outer surface of the titanium alloy threaded rod (1104). A sealing gasket (1107) is fixedly connected to the right side of the flow baffle (1105).

4. A high-flow-rate reversing valve according to claim 1, characterized in that: The inner top wall and the inner bottom wall of the reversing connection shell (12) are fixedly connected to two titanium alloy light rods (1106), and each of the titanium alloy light rods (1106) is slidably connected to the flow baffle (1105).

5. A high-flow-rate reversing valve according to claim 3, characterized in that: The outer surface of the flow baffle (1105) is fixedly connected to a positioning magnetic block (1109), and the front of the reversing connection shell (12) is fixedly connected to two Hall sensors (1110).

6. A high-flow-rate reversing valve according to claim 1, characterized in that: An encoder (13) is fixedly connected to the left side of the first motor (9), and a controller (14) is fixedly connected to the front side of the flow inlet pipe (1).

7. A high-flow-rate reversing valve according to claim 1, characterized in that: The left side of the flow inlet pipe (1) is fixedly connected to a first pipe connection flange (15), and the right side of each flow outlet pipe (2) is fixedly connected to a second pipe connection flange (16).

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