Anticorrosion treatment device for orifice plate flowmeter

Abstract

The utility model relates to the technical field of anti-corrosion, and discloses an orifice plate flowmeter anti-corrosion treatment device which comprises a throttling orifice ring, the inner wall of the throttling orifice ring is fixedly connected with two first motors, the driving ends of the first motors are fixedly connected with gears, the inner wall of the throttling orifice ring is connected with two racks in a sliding mode, and the two racks are fixedly connected with the inner wall of the throttling orifice ring. The outer portion of the gear is in meshed connection with the outer portion of the rack, a supporting disc is fixedly connected to the left side of the rack, a supporting column is fixedly connected to the left side of the supporting disc, a first limiting cone is fixedly connected to the left side of the supporting column, and a second limiting cone is slidably connected to the outer wall of the supporting column. The left side of the throttling hole ring is detachably connected with an anti-corrosion ring. According to the device, the anti-corrosion ring can be automatically and rapidly disassembled and assembled, replacement can be completed without professional tools, the maintenance efficiency is remarkably improved, the labor cost is reduced, the fixing reliability of the anti-corrosion ring is improved, and the service life of equipment is effectively prolonged.

Description

Technical Field

[0001] This utility model relates to the field of corrosion protection technology, and in particular to a corrosion protection device for orifice plate flowmeters. Background Technology

[0002] An anti-corrosion treatment device for orifice plate flowmeters is specifically designed for them. It enhances the flowmeter's corrosion resistance through techniques such as coating spraying, anti-corrosion lining, and electrochemical protection. Orifice plate flowmeters are commonly used in chemical and petroleum industries, where they come into contact with corrosive media such as acid and alkali solutions and sulfur-containing gases. Flowmeters made of ordinary materials will suffer structural damage and decreased accuracy of measuring components under long-term corrosion, leading to inaccurate measurement data or even equipment failure. Using an anti-corrosion treatment device can effectively extend the service life of the flowmeter, ensure the accuracy and stability of measurement data, and reduce equipment maintenance costs and production safety risks.

[0003] A corrosion protection device for an orifice plate flowmeter typically consists of a corrosion-resistant main structure and auxiliary protective components. The main structure includes an orifice plate body or corrosion-resistant lining layer made of corrosion-resistant material, which is applied to the orifice plate surface by spraying, welding, or embedding to prevent direct contact between the medium and the base metal. Corrosion-resistant isolation components are installed on the pressure tapping pipeline to prevent the pressure tapping signal from being distorted due to medium corrosion. An external electrochemical protection device is provided to suppress electrochemical corrosion by adjusting the electrode potential. Some devices also have a corrosion-resistant coating monitoring module to detect the integrity of the coating in real time. Combined with temperature and pressure compensation components, it ensures that the corrosion protection treatment does not affect the flow measurement accuracy. The various structures work together to achieve the dual functions of corrosion protection and accurate measurement.

[0004] In existing technologies, most devices use welding, integral molding, or complex bolt fastening to connect the anti-corrosion components to the flowmeter body. This fixing method requires specialized tools and equipment for disassembly, which consumes a lot of time and manpower. Furthermore, some anti-corrosion coatings or linings are tightly bonded to the flowmeter substrate, which can easily damage the core structure of the flowmeter during replacement, increasing maintenance risks and costs, reducing replacement efficiency, and making it impossible to replace the anti-corrosion layer in time when it fails rapidly due to strong corrosive media, thus affecting the normal operation and measurement accuracy of the flowmeter. Therefore, an anti-corrosion treatment device for orifice plate flowmeters is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an anti-corrosion treatment device for orifice plate flowmeters, which aims to improve the problem that the existing technology cannot quickly replace the anti-corrosion device, thus reducing the replacement efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A corrosion protection device for an orifice plate flowmeter includes a throttling orifice ring. Two motors are fixedly connected to the inner wall of the throttling orifice ring, and gears are fixedly connected to the drive ends of the motors. Two racks are slidably connected to the inner wall of the throttling orifice ring, with the outer sides of the gears meshing with the outer sides of the racks. A support plate is fixedly connected to the left side of the racks, and a support column is fixedly connected to the left side of the support plate. A limit cone is fixedly connected to the left side of the support column, and a second limit cone is slidably connected to the outer wall of the support column. A corrosion protection ring is detachably connected to the left side of the throttling orifice ring. Two support plates are fixedly connected to the inner wall of the corrosion protection ring, and springs are fixedly connected to the outer walls of the support plates. Limit blocks are fixedly connected to the outer walls of the springs. An adjustment component for changing the orifice diameter is provided on the inner wall of the throttling orifice ring.

[0008] As a further description of the above technical solution:

[0009] The adjustment assembly includes a protective shell, the outer walls of multiple protective shells are fixedly connected to the outer wall of the throttle hole ring, a second motor is fixedly connected to the inner wall of the protective shell, a turntable is fixedly connected to the drive end of the second motor, a rotating arm is rotatably connected to the outer wall of the turntable, and a movable arm is rotatably connected to the bottom end of the rotating arm.

[0010] As a further description of the above technical solution:

[0011] The inner wall of the anti-corrosion ring is provided with a groove, and the outer walls of the two limiting blocks are slidably connected to the inner wall of the anti-corrosion ring.

[0012] As a further description of the above technical solution:

[0013] The outer walls of both limiting blocks are detachably connected to the outer wall of the support column, and the outer walls of both limiting blocks are detachably connected to the outer wall of the limiting cone.

[0014] As a further description of the above technical solution:

[0015] The outer wall of the first limiting cone is slidably connected to the inner wall of the groove, and the outer wall of the second limiting cone is slidably connected to the inner wall of the groove.

[0016] As a further description of the above technical solution:

[0017] The outer wall of the movable arm is fixedly connected to a baffle, and the outer walls of the multiple baffles are slidably connected to the inner wall of the throttling orifice ring.

[0018] As a further description of the above technical solution:

[0019] The inner wall of the throttling orifice ring is fixedly connected to multiple limiting plates, and the outer wall of the moving arm is slidably connected to the inner wall of the limiting plates.

[0020] As a further description of the above technical solution:

[0021] The outer wall of the throttling orifice ring is fixedly connected to two flanges, and the outer walls of the two limiting blocks can be detachably connected to the outer wall of the limiting cone II.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the gear and rack mechanism driven by motor one drives the movement of limit cone one and limit cone two. With the elastic locking structure of spring and limit block, the anti-corrosion ring can be automatically and quickly disassembled and installed. Replacement can be completed without professional tools, which significantly improves maintenance efficiency and reduces labor costs. The double limit cone structure improves the reliability of the anti-corrosion ring fixation and effectively extends the service life of the equipment.

[0024] 2. In this utility model, the rotating disk is driven by the motor inside the protective shell. The rotating arm on the edge of the rotating disk drives the moving arm to make reciprocating linear motion, thereby driving the baffle to slide on the inner wall of the throttling orifice ring. This allows for dynamic adjustment of the throttling orifice diameter to adapt to different flow measurement needs, improve the applicability of the device, ensure measurement accuracy, optimize the flow state, and reduce measurement errors. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of an anti-corrosion treatment device for an orifice plate flowmeter proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the throttling orifice ring of an anti-corrosion treatment device for an orifice plate flowmeter proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the protective shell of an orifice plate flowmeter anti-corrosion treatment device proposed in this utility model;

[0028] Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0029] Legend:

[0030] 1. Throttling orifice ring; 2. Motor 1; 3. Gear; 4. Rack; 5. Support plate; 6. Support column; 7. Limiting cone 1; 8. Limiting cone 2; 9. Anti-corrosion ring; 10. Support plate; 11. Spring; 12. Limiting block; 13. Groove; 14. Protective shell; 15. Motor 2; 16. Turntable; 17. Rotating arm; 18. Moving arm; 19. Baffle; 20. Limiting plate; 21. Flange. Detailed Implementation

[0031] 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.

[0032] Reference Figure 1 , Figure 2 and Figure 4 This utility model provides an embodiment of an anti-corrosion treatment device for an orifice plate flowmeter, comprising a throttling orifice ring 1, which is the main structure of the device and is used to form a throttling device to achieve flow measurement. Two motors 2 are fixedly connected to the inner wall of the throttling orifice ring 1, providing power to the subsequent limiting mechanism. A gear 3 is fixedly connected to the drive end of the motor 2, and the power output end of the motor 2 is fixedly connected to the gear 3, driving the gear 3 to rotate. Two racks 4 are slidably connected to the inner wall of the throttling orifice ring 1, and the two racks 4 can slide along a straight line on the inner wall of the throttling orifice ring 1, cooperating with the gears 3 to achieve... Now, the motion mode is changed. The outside of gear 3 and the outside of rack 4 are meshed. Gear 3 and rack 4 mesh with each other, converting the rotational motion of motor 2 into the linear reciprocating motion of rack 4. A support plate 5 is fixedly connected to the left side of rack 4. The support plate 5 connected to the left side of rack 4 is used to support the subsequent support column 6 and other structures, providing a motion basis for the limit operation. The support column 6 is fixedly connected to the left side of support plate 5. The support column 6 extends to the left of support plate 5 to transmit mechanical force and drive the limit cone 7 to move together. The limit cone 7 is fixedly connected to the left side of support column 6. The limit cone 7 is fixed at the left end of support column 6.

[0033] Its conical structure is used to cooperate with the limiting block 12 to achieve sliding and limiting operations. The outer wall of the support column 6 is slidably connected to the limiting cone 2 8. The limiting cone 2 8 is sleeved on the outer wall of the support column 6 and can slide left and right, forming a double limiting structure with the limiting cone 1 7. At the same time, the sliding of the limiting cone 2 8 can realize the operation of releasing the limiting. The left side of the throttling orifice ring 1 is detachably connected to the anti-corrosion ring 9. The anti-corrosion ring 9 is installed on the left side of the throttling orifice ring 1 in a detachable manner to isolate the corrosive medium from the corrosion of the main body. The inner wall of the anti-corrosion ring 9 is fixedly connected to two support plates 10 for support. The spring 11 and the limiting block 12 assembly are provided. The spring 11 is fixedly connected to the outer wall of the support plate 10. The spring 11 is connected to the outer side of the support plate 10. The elastic deformation of the spring 11 is used to realize the extension and retraction and reset of the limiting block 12. The limiting block 12 is fixedly connected to the outer wall of the spring 11. The outer end of the spring 11 is connected to the limiting block 12. Under the action of elastic force, the limiting block 12 can be connected to the limiting cone 7, thereby realizing the fixing and disassembly operation of the anti-corrosion ring 9. The inner wall of the throttling orifice ring 1 is provided with an adjustment component for changing the orifice diameter. The adjustment component can dynamically adjust the flow orifice diameter of the throttling orifice ring 1 to adapt to the measurement requirements of different flow rates.

[0034] Reference Figure 3 The adjustment assembly includes a protective shell 14, which is the external protective structure of the adjustment assembly to protect the internal motor and transmission components. The outer walls of multiple protective shells 14 are fixedly connected to the outer wall of the throttling orifice ring 1. Multiple protective shells 14 are distributed and fixed along the circumferential direction of the outer wall of the throttling orifice ring 1 to ensure the installation stability of the adjustment assembly. A second motor 15 is fixedly connected to the inner wall of the protective shell 14. The second motor 15 is fixed inside the protective shell 14 to provide power input for orifice adjustment. A turntable 16 is fixedly connected to the drive end of the second motor 15. The output shaft of the second motor 15 is connected to the turntable 16. The rotation of the motor drives the turntable 16 to make circular motion. A rotating arm 17 is rotatably connected to the outer wall of the turntable 16. One end of the rotating arm 17 is hinged to the edge of the turntable 16 and swings with the rotation of the turntable 16. A movable arm 18 is rotatably connected to the bottom end of the rotating arm 17. The other end of the rotating arm 17 is hinged to the movable arm 18, converting the circular motion of the turntable 16 into the linear motion of the movable arm 18.

[0035] Reference Figure 1 , Figure 3 and Figure 4The inner wall of the anti-corrosion ring 9 is provided with a groove 13, which is used to accommodate the limiting cone and the limiting block 12 to form a locking fit structure. The outer walls of the two limiting blocks 12 are slidably connected to the inner wall of the anti-corrosion ring 9. The limiting blocks 12 can slide in the guide groove of the inner wall of the anti-corrosion ring 9 to ensure the accuracy of their movement trajectory. The outer walls of the two limiting blocks 12 can be detachably connected to the outer wall of the support column 6. The detachable connection means that when the limiting block 12 contacts the outer wall of the support column 6, the limiting operation is completed. When they move away from each other, the unlocking operation is completed. The outer walls of the two limiting blocks 12 can be detachably connected to the outer wall of the limiting cone 7. The detachable connection means that the limiting block 12 can slide on the outer wall of the limiting cone 7. The locking force is transmitted through the cone surface fit. The outer wall of the limiting cone 7 is slidably connected to the inner wall of the groove 13. The cone surface of the limiting cone 7 can slide in the groove 13 and move through the cone surface of the limiting cone 7.

[0036] The limiting block 12 is compressed and released to fix the anti-corrosion ring 9. The outer wall of the second limiting cone 8 is slidably connected to the inner wall of the groove 13. The second limiting cone 8 slides in the groove 13 and cooperates with the first limiting cone 7 to form a double limiting to enhance the locking reliability. The outer wall of the moving arm 18 is fixedly connected to a baffle 19. The baffle 19 is fixed on the outside of the moving arm 18 and moves with the moving arm 18 to block or open the flow channel of the throttling orifice ring 1 to change the orifice diameter. The outer walls of multiple baffles 19 are slidably connected to the inner wall of the throttling orifice ring 1. The baffles 19 can slide on the inner wall of the throttling orifice ring 1 to ensure the smoothness and sealing of the movement during the adjustment process. The inner wall of the throttling orifice ring 1 is fixed. Multiple limiting plates 20 are connected. The inner wall of the throttling ring 1 is fixed with the limiting plate 20 to restrict the movement trajectory of the moving arm 18 to prevent it from deviating. The outer wall of the moving arm 18 is slidably connected to the inner wall of the limiting plate 20. The moving arm 18 slides in the guide groove of the limiting plate 20. The constraint of the limiting plate 20 ensures the accuracy of the adjustment action. The outer wall of the throttling ring 1 is fixedly connected with two flanges 21. The two flanges 21 on the outer wall of the throttling ring 1 are used to connect to the pipeline system to realize the overall installation and fixation of the device. The outer walls of the two limiting blocks 12 are detachably connected to the outer wall of the limiting cone 8. The limiting block 12 and the outer wall of the limiting cone 8 are detachably connected. The limiting and unlocking operation can be realized through the cone surface cooperation.

[0037] Working principle: When motor 2 rotates clockwise, its drive end drives gear 3 to rotate synchronously. Through the meshing transmission between gear 3 and rack 4, the rotational motion is converted into linear motion of rack 4 to the left, which in turn drives support plate 5, support column 6 and limiting cone 7 to move to the left together. During this process, limiting block 12 and the inclined surface of limiting cone 7 slide relative to each other. The conical surface of limiting cone 7 pushes limiting block 12 to move upward against the elastic force of spring 11, compressing spring 11. When limiting block 12 slides to one side of the conical bottom surface of limiting cone 7, spring 11 releases its elastic force and pushes limiting block 12 to slide downward, so that it engages with the bottom surface of limiting cone 7, completing the limiting and fixing of anti-corrosion ring 9. In operation, if motor 12 continues to rotate clockwise, support column 6 drives limit cone 17 to move to the left continuously. When the inclined surface of limit block 12 contacts the conical bottom surface of limit cone 28, limit cone 28 supports limit block 12 to move upward and compress spring 11. At this time, motor 12 rotates counterclockwise, gear 3 rotates in the opposite direction to drive rack 4 to move to the right, support column 6 and limit cone 17 move to the right synchronously, and limit block 12 squeezes limit cone 28. Since limit cone 28 is stationary relative to support column 6, when limit cone 17 contacts limit cone 28, the two move to the right together. Limit block 12 slides along the inclined surface of limit cone 28 and limit cone 17 until it slides away from limit cone 17, completing the unlocking. At this time, anti-corrosion ring 9 can be removed.

[0038] When motor 15 rotates, its drive end drives turntable 16 to rotate synchronously. The rotating arm 17 on the edge of turntable 16 moves in a circle with turntable 16. When the rotating arm 17 rotates from the top to the bottom, it drives the moving arm 18 to move downward through the hinge structure. The baffle 19 on the outside of the moving arm 18 slides downward, thereby blocking part of the flow channel of the throttling orifice ring 1 and reducing the orifice diameter. When the rotating arm 17 rotates from the bottom to the top, the moving arm 18 drives the baffle 19 to move upward. The baffle 19 moves away from the flow channel and the orifice diameter increases, thereby realizing the dynamic adjustment of the throttling orifice diameter.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A corrosion protection device for an orifice plate flowmeter, comprising a throttling orifice ring (1), characterized in that: Two motors (2) are fixedly connected to the inner wall of the throttling orifice ring (1). A gear (3) is fixedly connected to the drive end of the motor (2). Two racks (4) are slidably connected to the inner wall of the throttling orifice ring (1). The outer side of the gear (3) is meshed with the outer side of the rack (4). A support plate (5) is fixedly connected to the left side of the rack (4). A support column (6) is fixedly connected to the left side of the support plate (5). A limit cone (7) is fixedly connected to the left side of the support column (6). A limit cone (8) is slidably connected to the outer wall of the support column (6). A corrosion-resistant ring (9) is detachably connected to the left side of the throttling orifice ring (1). Two support plates (10) are fixedly connected to the inner wall of the corrosion-resistant ring (9). A spring (11) is fixedly connected to the outer wall of the support plate (10). A limit block (12) is fixedly connected to the outer wall of the spring (11). An adjustment component for changing the orifice diameter is provided on the inner wall of the throttling orifice ring (1).

2. The anti-corrosion treatment device for an orifice plate flowmeter according to claim 1, characterized in that: The adjustment assembly includes a protective shell (14), the outer walls of multiple protective shells (14) are fixedly connected to the outer wall of the throttle hole ring (1), the inner wall of the protective shell (14) is fixedly connected to a second motor (15), the drive end of the second motor (15) is fixedly connected to a turntable (16), the outer wall of the turntable (16) is rotatably connected to a rotating arm (17), and the bottom end of the rotating arm (17) is rotatably connected to a moving arm (18).

3. The anti-corrosion treatment device for an orifice plate flowmeter according to claim 1, characterized in that: The inner wall of the anti-corrosion ring (9) is provided with a groove (13), and the outer walls of the two limiting blocks (12) are slidably connected to the inner wall of the anti-corrosion ring (9).

4. The anti-corrosion treatment device for an orifice plate flowmeter according to claim 1, characterized in that: The outer walls of both limiting blocks (12) can be detachably connected to the outer wall of the support column (6), and the outer walls of both limiting blocks (12) can be detachably connected to the outer wall of the limiting cone (7).

5. The anti-corrosion treatment device for an orifice plate flowmeter according to claim 3, characterized in that: The outer wall of the first limiting cone (7) is slidably connected to the inner wall of the groove (13), and the outer wall of the second limiting cone (8) is slidably connected to the inner wall of the groove (13).

6. The anti-corrosion treatment device for an orifice plate flowmeter according to claim 2, characterized in that: The outer wall of the movable arm (18) is fixedly connected to a baffle (19), and the outer walls of the multiple baffles (19) are slidably connected to the inner wall of the throttling orifice ring (1).

7. The anti-corrosion treatment device for an orifice plate flowmeter according to claim 2, characterized in that: The inner wall of the throttle hole ring (1) is fixedly connected to a plurality of limiting plates (20), and the outer wall of the moving arm (18) is slidably connected to the inner wall of the limiting plates (20).

8. The anti-corrosion treatment device for an orifice plate flowmeter according to claim 4, characterized in that: The outer wall of the throttling ring (1) is fixedly connected to two flanges (21), and the outer walls of the two limiting blocks (12) can be detachably connected to the outer wall of the limiting cone (8).

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