A high-pressure orifice plate throttling device for separating sulfur hexafluoride gas.

Abstract

This utility model discloses a high-pressure orifice plate throttling device for separating sulfur hexafluoride gas, relating to the field of orifice plate throttling technology. It includes a connecting flange and a throttling ring. An orifice plate is disposed inside the throttling ring, and a movable plate is rotatably connected inside the throttling ring. A groove is formed on one side of the movable plate, and a slider is slidably connected to one side of the groove. An orifice plate is fixedly connected to one side of the slider, and a connecting block is fixedly connected to one side of the movable plate. A fixing block is fixedly connected to the outside of the throttling ring, and a connecting hole is formed inside the fixing block. This utility model, through the arrangement of the movable plate, groove, slider, orifice plate, and connecting block, achieves the effect of controlling the throttling flow rate. The cooperation of the limiting rod and the movable groove guides the movement of the orifice plate during use, thereby adjusting the throttling flow rate and achieving the purpose of adjusting the flow rate of the throttling device.

Description

Technical Field

[0001] This utility model relates to the field of orifice plate throttling technology, specifically a high-pressure orifice plate throttling device for separating sulfur hexafluoride gas. Background Technology

[0002] An orifice plate is a device used for fluid control in pipelines. When there is a large pressure difference across a pipeline, an orifice plate is often added. The principle is that when fluid flows in the pipeline, the local resistance of the orifice plate causes a decrease in fluid pressure and energy loss; this phenomenon is thermodynamically known as throttling. This method is simpler than using a regulating valve, but proper selection is crucial; otherwise, cavitation can easily occur, affecting the safe operation of the pipeline.

[0003] Currently, existing high-pressure orifice plate throttling devices for sulfur hexafluoride (SF6) gas separation typically control the SF6 flow rate through orifices in the pipeline. However, because these devices control gas flow rate by fixing orifices, adjusting the flow rate requires disassembling and replacing orifice plates with different orifice diameters, which is cumbersome and affects separation efficiency. Furthermore, the flow rate of these orifice plates cannot be adjusted. During installation, most orifice plates are currently fixed using flange clamps, relying solely on the frictional force generated by bolt preload. This makes them prone to displacement under vibration, impact, or temperature changes, leading to sealing failure and measurement errors, and the throttling device is susceptible to loosening. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a high-pressure orifice plate throttling device for separating sulfur hexafluoride gas, which solves the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model employs the following technical solution: It includes a connecting flange and a throttling ring. The throttling ring has an internal perforated plate and a rotatably connected movable plate. A groove is formed on one side of the movable plate, and a slider is slidably connected to one side of the groove. The perforated plate is fixedly connected to one side of the slider, and a connecting block is fixedly connected to one side of the movable plate. A fixing block is fixedly connected to the outer side of the throttling ring, and a connecting hole is formed inside the fixing block. A connecting bolt is inserted into the connecting flange and the connecting hole.

[0008] Optionally, the orifice plates are arranged in a ring array, a limiting rod is fixedly connected to the other side of the orifice plates, and a movable groove is formed inside the throttling ring, with the limiting rod slidably connected inside the movable groove.

[0009] Optionally, the inner side of the connecting block is fitted with the throttling ring, a sealing ring is provided between the movable plate and the throttling ring, and the sliding groove has an arc-shaped structure.

[0010] Optionally, the slider is cylindrical, a scale plate is provided on the outer side of the throttling ring, and the connecting block is in contact with the scale plate.

[0011] Optionally, a pad is provided on one side of the throttling ring, a sealing ring is provided between the pad and the throttling ring, and a limiting plate is fixedly connected to one side of the pad, with the limiting plate fitting against the fixing block.

[0012] Optionally, the outer side of the gasket is tightly fitted to the connecting flange, the connecting bolts penetrate the gasket, and the fixing blocks are distributed in a ring array.

[0013] This invention provides a high-pressure orifice plate throttling device for separating sulfur hexafluoride gas, which has the following advantages:

[0014] 1. This high-pressure orifice plate throttling device for sulfur hexafluoride gas separation, through the arrangement of a movable plate, a sliding groove, a slider, an orifice plate, and a connecting block, achieves the effect of controlling the throttling flow rate. Through the cooperation of the limiting rod and the movable groove, the movement of the orifice plate can be guided during use, thereby achieving the function of adjusting the throttling flow rate by moving the orifice plate, and thus achieving the purpose of adjusting the flow rate of the throttling device.

[0015] 2. The high-pressure orifice plate throttling device for sulfur hexafluoride gas separation, through the setting of fixed blocks, connecting holes and connecting bolts, achieves a stable connection between the throttling structure and the connecting flange. Through the cooperation of the gasket and limiting plate, the fixed block can be limited during use, thereby increasing the stability of the throttling structure and reducing the loosening of the throttling device. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a three-dimensional cross-sectional structural diagram of the present invention;

[0018] Figure 3 This utility model Figure 2 A magnified structural diagram of part A in the middle;

[0019] Figure 4 This is a schematic diagram of the throttling ring of this utility model;

[0020] Figure 5 This is a schematic diagram of the cross-sectional structure of the throttling ring of this utility model.

[0021] In the diagram: 1. Connecting flange; 2. Connecting bolt; 3. Fixing block; 4. Limiting plate; 5. Gasket; 6. Connecting block; 7. Orifice plate; 10. Throttling ring; 11. Limiting rod; 12. Movable groove; 13. Slide groove; 14. Movable plate; 15. Connecting hole; 16. Sliding block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Example

[0024] Please see Figures 1 to 5 The present invention provides a technical solution including a connecting flange 1 and a throttling ring 10. The throttling ring 10 has an orifice plate 7 inside. A movable plate 14 is rotatably connected inside the throttling ring 10. A sliding groove 13 is opened on one side of the movable plate 14. A slider 16 is slidably connected to one side of the sliding groove 13. The orifice plate 7 is fixedly connected to one side of the movable plate 14. A connecting block 6 is fixedly connected to one side of the throttling ring 10. A fixing block 3 is fixedly connected to the outside of the throttling ring 10. A connecting hole 15 is opened inside the fixing block 3. A connecting bolt 2 is inserted into the connecting flange 1 and the connecting hole 15.

[0025] Specifically, the surface of the throttling structure is coated with a corrosion-resistant coating, and the slider 16 fits closely with the groove 13.

[0026] Please refer to Figure 4 to Figure 5 The orifice plates 7 are arranged in a ring array. A limit rod 11 is fixedly connected to the other side of the orifice plates 7. A movable groove 12 is opened inside the throttling ring 10. The limit rod 11 is slidably connected inside the movable groove 12.

[0027] Specifically, multiple perforated plates 7 form a ring, and the outer side of the movable plate 14 is attached to the fixed block 3.

[0028] Please refer to Figure 2 to Figure 5 The inner side of the connecting block 6 is in contact with the throttling ring 10, a sealing ring is provided between the movable plate 14 and the throttling ring 10, and the slide groove 13 has an arc-shaped structure.

[0029] Specifically, a groove for placing a sealing ring is provided between the movable plate 14 and the throttling ring 10.

[0030] Please see Figures 4 to 5 The slider 16 is cylindrical in shape, and a scale plate is provided on the outer side of the throttling ring 10. The connecting block 6 is attached to the scale plate.

[0031] Specifically, the values ​​on the scale represent the throttling flow rate.

[0032] Please refer to Figure 1 to Figure 3 A pad 5 is provided on one side of the throttling ring 10, and a sealing ring is provided between the pad 5 and the throttling ring 10. A limiting plate 4 is fixedly connected to one side of the pad 5, and the limiting plate 4 is in contact with the fixing block 3.

[0033] Specifically, the outer side of the pad 5 is made of rubber, and the spacing of the limiting plate 4 is the same as the size of the fixing block 3.

[0034] Please see Figures 1 to 3 The outer side of the pad 5 is tightly fitted with the connecting flange 1, the connecting bolts 2 penetrate the pad 5, and the fixing blocks 3 are distributed in a ring array.

[0035] Specifically, a limit ring is provided on the outer side of the throttling ring 10, and the limit ring is in contact with the sealing ring on the inner side of the gasket 5.

[0036] In use, after connecting the throttling structure to the connecting flange 1 of the pipeline, when it is necessary to adjust the internal flow, rotate the connecting block 6, which drives the movable plate 14 to rotate. As the movable plate 14 rotates, the upper slide groove 13 moves, causing the slider 16 to move with the slide groove 13. The slider 16 drives the orifice plate 7 to move, thereby adjusting the throttling structure. When the connecting block 6 moves, the range can be accurately adjusted by the scale plate set at the bottom. The sealing ring set between the movable plate 14 and the throttling ring 10 provides a seal. Through the arrangement of the movable plate 14, slide groove 13, slider 16, orifice plate 7, and connecting block 6, the effect of controlling the throttling flow is achieved. When the orifice plate 7 moves, the limiting rod 11 moves in the movable groove 12, which restricts the movement direction of the orifice plate 7. Through the cooperation of the limiting rod 11 and the movable groove 12, the movement of the orifice plate 7 can be guided during use, thereby achieving the function of adjusting the throttling flow by moving the orifice plate 7, and achieving the purpose of adjusting the flow of the throttling device.

[0037] After aligning the throttling structure with the connecting flange 1, insert the connecting bolt 2 into the connecting hole 15 between the connecting flange 1 and the fixing block 3, and fix it in place. This ensures a stable connection between the fixing block 3 and the connecting flange 1. The fixing block 3, connecting hole 15, and connecting bolt 2 provide a stable connection between the throttling structure and the connecting flange 1. A gasket 5 is placed between the throttling ring 10 and the connecting flange 1. A limiting plate 4 is placed on the inner side of the gasket 5 to further restrict the fixing block 3. A sealing ring is placed on the inner side of the gasket 5 to prevent leakage. The outer side of the gasket 5 is made of rubber to increase stability and provide a seal. The combination of the gasket 5 and the limiting plate 4 limits the fixing block 3 during use, thereby increasing the stability of the throttling structure and reducing the risk of loosening of the throttling device.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-pressure orifice plate throttling device for separating sulfur hexafluoride gas, comprising a connecting flange (1) and a throttling ring (10), characterized in that: The throttling ring (10) has an orifice plate (7) inside, and a movable plate (14) is rotatably connected inside the throttling ring (10). A groove (13) is provided on one side of the movable plate (14), and a slider (16) is slidably connected on one side of the groove (13). The orifice plate (7) is fixedly connected on one side of the slider (16), and a connecting block (6) is fixedly connected on one side of the movable plate (14). A fixing block (3) is fixedly connected on the outside of the throttling ring (10). A connecting hole (15) is provided inside the fixing block (3), and a connecting bolt (2) is inserted into the connecting flange (1) and the connecting hole (15).

2. The high-pressure orifice plate throttling device for separating sulfur hexafluoride gas according to claim 1, characterized in that: The orifice plates (7) are arranged in a ring array. A limiting rod (11) is fixedly connected to the other side of the orifice plates (7). A movable groove (12) is provided inside the throttling ring (10). The limiting rod (11) is slidably connected inside the movable groove (12).

3. The high-pressure orifice plate throttling device for separating sulfur hexafluoride gas according to claim 1, characterized in that: The inner side of the connecting block (6) is in contact with the throttling ring (10), a sealing ring is provided between the movable plate (14) and the throttling ring (10), and the slide groove (13) is an arc-shaped structure.

4. The high-pressure orifice plate throttling device for separating sulfur hexafluoride gas according to claim 1, characterized in that: The slider (16) is cylindrical in shape, and a scale plate is provided on the outer side of the throttling ring (10). The connecting block (6) is in contact with the scale plate.

5. The high-pressure orifice plate throttling device for separating sulfur hexafluoride gas according to claim 1, characterized in that: A pad (5) is provided on one side of the throttling ring (10), and a sealing ring is provided between the pad (5) and the throttling ring (10). A limiting plate (4) is fixedly connected to one side of the pad (5), and the limiting plate (4) is in contact with the fixing block (3).

6. The high-pressure orifice plate throttling device for separating sulfur hexafluoride gas according to claim 5, characterized in that: The outer side of the pad (5) is tightly fitted with the connecting flange (1), the connecting bolt (2) passes through the pad (5), and the fixing blocks (3) are distributed in a ring array.

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