Coriolis mass flowmeter with reduced interference

Abstract

The utility model provides a kind of coriolis mass flowmeter of reducing interference high accuracy, belong to coriolis mass flowmeter technical field, this coriolis mass flowmeter of reducing interference high accuracy, including mass flowmeter body;Two mounting seats, two mounting seats are set in the outer surface of mass flowmeter body, the downside of two mounting seats is provided with base;Multiple fixing bases, multiple fixing bases are respectively set in the two sides of two bases, the upper end of multiple fixing bases is all screw thread connection with screw;Two groups of buffer mechanisms, each group of buffer mechanisms includes: buffer shell, buffer shell is set in the upper end of base, effectively attenuate high frequency or large amplitude vibration by buffer mechanism, avoid the error of measurement data, improve the precision of flow data, solve the phenomenon that buffering element is easily fatigued under long-term vibration environment Failure, strengthen the stability of flowmeter long-term operation simultaneously.

Description

Technical Field

[0001] This utility model belongs to the technical field of Coriolis mass flow meters, specifically relating to a Coriolis mass flow meter with reduced interference and high accuracy. Background Technology

[0002] A Coriolis mass flow meter, also known as a Coriolis force flow meter, is a device that directly measures mass flow rate by utilizing the Coriolis force generated when fluid flows in a vibrating pipe, which is proportional to the mass flow rate. It consists of a flow sensing element and a converter. Coriolis mass flow meters achieve direct measurement of mass flow rate, featuring high accuracy and the ability to measure multiple media and process parameters. They are widely used in industries such as petrochemicals, pharmaceuticals, and food processing.

[0003] In actual working conditions, factors such as pipeline vibration, mechanical shock and external environmental interference can cause the flow meter to lose measurement accuracy or even cause signal distortion. Existing buffer structures are difficult to effectively attenuate high-frequency or large-amplitude vibrations, resulting in increased measurement errors. Under long-term vibration, buffer elements are prone to fatigue failure, affecting the long-term reliability of the flow meter. Utility Model Content

[0004] The purpose of this invention is to provide a Coriolis mass flow meter with reduced interference and high accuracy. It aims to solve the problem that the buffer structure in the prior art is difficult to effectively attenuate high-frequency or large-amplitude vibrations, which leads to increased measurement errors. Under long-term vibration environment, the buffer element is prone to fatigue failure, which affects the long-term reliability of the flow meter.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A Coriolis mass flow meter with reduced interference and high accuracy includes:

[0007] Mass flow meter body;

[0008] Two mounting bases are provided on the outer surface of the mass flow meter body, and a base is provided on the lower side of each mounting base;

[0009] Multiple fixing seats are respectively disposed on both sides of two bases, and screws are threadedly connected to the upper end of each fixing seat;

[0010] Two sets of buffer mechanisms, each set of buffer mechanisms including:

[0011] A buffer shell is disposed at the upper end of the base. A lower pressure seat is slidably connected to the inner surface of the buffer shell. A sliding rod is fixedly connected to the upper end of the lower pressure seat. The upper end of the sliding rod is fixedly connected to the lower end of the mounting base.

[0012] A support component is disposed within a buffer housing to support and limit the sliding pressure seat.

[0013] As a preferred embodiment of this utility model, each set of support components includes:

[0014] A limiting seat is fixedly connected to the inner surface of the buffer shell, and a first spring is sleeved on the outer surface of the limiting seat. The outer surface of the first spring is fixedly connected to the inner surface of the lower pressure seat.

[0015] In a preferred embodiment of this utility model, the outer surfaces of the two mounting bases are rotatably connected to two arc-shaped plates via a rotating shaft, and one end of each of the arc-shaped plates is movably connected to two bolts, with nuts threaded onto the circumferential surfaces of the two bolts.

[0016] As a preferred embodiment of this utility model, it further includes multiple sets of telescopic mechanisms, each set of telescopic mechanisms comprising:

[0017] A sliding groove is formed at one end of the base. A limiting plate is slidably connected to the inner surface of the sliding groove. A connecting block is fixedly connected to the outer surface of the limiting plate. One end of the connecting block is fixedly connected to one end of the fixed base.

[0018] Two limiting grooves are provided, both of which are formed on the inner walls of the sliding groove. Limiting blocks are slidably connected to the inner surfaces of the two limiting grooves. The adjacent ends of the two limiting blocks are fixedly connected to the two ends of the limiting plate, respectively.

[0019] A limiting component is provided in the sliding groove to limit the sliding limiting plate.

[0020] As a preferred embodiment of this utility model, each set of limiting components includes:

[0021] Two support frames are respectively disposed on one inner wall of two limiting grooves, and a second spring is sleeved on the outer surface of each support frame.

[0022] In a preferred embodiment of this utility model, the upper ends of the plurality of fixed seats are all fixedly connected to connecting seats, and the inner surfaces of the plurality of connecting seats and the inner surfaces of the two mounting seats are rotatably connected to a plurality of connecting plates via rotating shafts.

[0023] As a preferred embodiment of this utility model, a connecting frame is fixedly connected to the adjacent ends of the two bases, and a support base is fixedly connected to the upper end of the two bases. The inner surfaces of the two support bases and the outer surfaces of the two buffer shells are respectively fixedly connected.

[0024] Compared with the prior art, the beneficial effects of this utility model are:

[0025] 1. In this solution, the angle of the mounting base is adjusted by using an arc plate and bolts to match the pipeline, and then locked with nuts. When the pipeline or external environment vibrates, the vibration energy is transmitted to the sliding rod through the mounting base. The sliding rod drives the lower pressure seat to slide up and down in the buffer shell. The lower pressure seat compresses the first spring, and the elastic deformation of the spring absorbs the vibration energy. The limit seat restricts the movement range of the first spring to prevent excessive compression or rebound. The vibration energy after buffering is greatly reduced, ensuring that the measurement accuracy of the mass flow meter body is not disturbed. The buffer mechanism effectively attenuates high-frequency or large-amplitude vibrations, avoids measurement data errors, improves the accuracy of flow data, solves the problem of easy fatigue failure of buffer elements under long-term vibration environment, and enhances the long-term stability of the flow meter.

[0026] 2. In this solution, when adjusting the installation position of the fixed seat, an external force is applied to make the limiting plate slide in the sliding groove, and the limiting block moves in the limiting groove to ensure that the limiting plate will not disengage from the sliding groove. When the external force is removed, the second spring pushes the support frame to make the limiting plate automatically reset and maintain the stable position of the fixed seat. Attached Figure Description

[0027] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0028] Figure 1 This is a perspective view of the present utility model;

[0029] Figure 2 This is a first perspective sectional view of the present invention;

[0030] Figure 3 This is a second perspective sectional view of the present invention;

[0031] Figure 4 This utility model Figure 3 Enlarged view of section A in the image;

[0032] Figure 5 This is a third perspective sectional view of the present invention;

[0033] Figure 6 This utility model Figure 5 A magnified view of section B in the image.

[0034] In the diagram: 1. Mass flow meter body; 2. Mounting base; 3. Arc plate; 4. Bolt; 5. Nut; 6. Base; 7. Support base; 8. Fixing base; 9. Connecting base; 10. Connecting plate; 11. Screw; 12. Connecting frame; 13. Buffer shell; 14. Limiting seat; 15. First spring; 16. Lower pressure seat; 17. Sliding rod; 18. Sliding groove; 19. Limiting plate; 20. Connecting block; 21. Support frame; 22. Second spring; 23. Limiting groove; 24. Limiting block. Detailed Implementation

[0035] 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.

[0036] Example 1

[0037] Please see Figure 1-6 The present invention provides the following technical solution:

[0038] A Coriolis mass flow meter with reduced interference and high accuracy includes:

[0039] Mass flow meter body 1;

[0040] Two mounting bases 2 are provided on the outer surface of the mass flow meter body 1, and a base 6 is provided on the lower side of each of the two mounting bases 2.

[0041] Multiple fixing seats 8 are respectively disposed on both sides of two bases 6, and screws 11 are threadedly connected to the upper end of each fixing seat 8;

[0042] Two sets of buffer mechanisms, each set of buffer mechanisms includes:

[0043] A buffer shell 13 is disposed on the upper end of the base 6. A lower pressure seat 16 is slidably connected to the inner surface of the buffer shell 13. A sliding rod 17 is fixedly connected to the upper end of the lower pressure seat 16. The upper end of the sliding rod 17 is fixedly connected to the lower end of the mounting base 2.

[0044] A support component is provided inside the buffer shell 13 to support and limit the sliding pressure seat 16.

[0045] In a specific embodiment of this utility model, the core measuring component of the mass flow meter body 1 is used to detect the mass flow rate of fluid. High-precision measurement is achieved based on the Coriolis effect. The mounting base 2 is fixed to the outer surface of the mass flow meter body 1, supporting and connecting other structures to ensure overall stability. Two bases 6 are located below the mounting base 2, providing basic support and cooperating with a buffer mechanism to reduce external vibration interference. Four fixed seats 8 are distributed on both sides of the two bases 6, used to fix and adjust the position of the overall structure to ensure stable installation. Four screws 11 are threaded onto the upper ends of the four fixed seats 8, used to fix the four fixed seats 8 to the ground to prevent loosening. A buffer shell 13 is installed on the upper end of the base 6 to accommodate the internal components. The lower pressure seat 16 slides within the buffer shell 13 and can move up and down under external force. Vibration energy is transmitted to the buffer assembly, and the sliding rod 17 is fixed to the upper end of the lower pressure seat 16, transmitting the vibration to the buffer mechanism while limiting the direction of movement. The limiting seat 14 is fixed inside the buffer shell 13 to support the first spring 15 and limit its range of movement. The first spring 15 is sleeved outside the limiting seat 14 to provide elastic buffering force and absorb the vibration energy transmitted by the lower pressure seat 16. The buffer mechanism effectively attenuates high-frequency or large-amplitude vibrations, avoiding measurement data errors, improving the accuracy of flow data, and solving the problem of easy fatigue failure of buffer elements under long-term vibration environment. At the same time, it enhances the stability of the flow meter in long-term operation. It should be noted that the specific model of mass flow meter body 1 used shall be selected by those skilled in the art, and the above-mentioned mass flow meter body 1, etc., are all existing technologies, which will not be elaborated in this solution.

[0046] Please refer to the details. Figure 4 Each set of support components includes:

[0047] The limiting seat 14 is fixedly connected to the inner surface of the buffer shell 13. The outer surface of the limiting seat 14 is fitted with a first spring 15, and the outer surface of the first spring 15 is fixedly connected to the inner surface of the lower pressure seat 16.

[0048] In this embodiment: the limiting seat 14 is fixed inside the buffer shell 13 to support the first spring 15 and limit its range of motion. The first spring 15 is sleeved outside the limiting seat 14 to provide elastic buffering force and absorb the vibration energy transmitted by the pressure seat 16.

[0049] Please refer to the details. Figure 2 The outer surfaces of the two mounting bases 2 are rotatably connected to two arc-shaped plates 3 via a rotating shaft. One end of each of the multiple arc-shaped plates 3 is movably connected to two bolts 4, and the circumferential surfaces of the two bolts 4 are threaded with nuts 5.

[0050] In this embodiment, multiple arc-shaped plates 3 are connected to the mounting base 2 via a rotating shaft. The angle can be adjusted to adapt to different installation requirements. Two bolts 4 and two nuts 5 are used to fix the multiple arc-shaped plates 3 to ensure structural stability and prevent loosening.

[0051] Please refer to the details. Figure 6 It also includes multiple telescopic mechanisms, each of which includes:

[0052] A sliding groove 18 is formed at one end of the base 6. A limiting plate 19 is slidably connected to the inner surface of the sliding groove 18. A connecting block 20 is fixedly connected to the outer surface of the limiting plate 19. One end of the connecting block 20 is fixedly connected to one end of the fixed base 8.

[0053] Two limiting grooves 23 are provided on the inner walls of both sides of the sliding groove 18. Limiting blocks 24 are slidably connected to the inner surfaces of the two limiting grooves 23. The adjacent ends of the two limiting blocks 24 are fixedly connected to the two ends of the limiting plate 19 respectively.

[0054] A limiting component is provided within the sliding groove 18 to limit the sliding limiting plate 19.

[0055] In this embodiment: a sliding groove 18 is formed at one end of the base 6 to accommodate the limiting plate 19 and guide its sliding. The limiting plate 19 slides in the sliding groove 18 to adjust the position of the fixed seat 8 to adapt to different installation environments. A connecting block 20 is fixedly connected to the limiting plate 19 and the fixed seat 8 to ensure that the two are linked. Two limiting grooves 23 are formed on the inner walls of both sides of the sliding groove 18 to limit the movement range of the limiting block 24. At the same time, the two limiting blocks 24 slide in the two limiting grooves 23 to prevent the limiting plate 19 from disengaging from the sliding groove 18. Two support frames 21 are provided to support the second spring 22 to ensure its stable operation. The two second springs 22 are sleeved on the outside of the support frames 21 to provide elastic restoring force so that the limiting plate 19 can return to its original position after being subjected to force.

[0056] Please refer to the details. Figure 6 Each set of limit components includes:

[0057] Two support frames 21 are respectively set on one side of the inner wall of the two limiting grooves 23, and a second spring 22 is sleeved on the outer surface of each support frame 21.

[0058] In this embodiment: two support frames 21 are provided to support the second spring 22 to ensure its stable operation. The two second springs 22 are sleeved on the support frames 21 to provide elastic restoring force, so that the limiting plate 19 can return to its original position after being subjected to force.

[0059] Please refer to the details. Figure 2Multiple fixed seats 8 are fixedly connected to the upper ends of multiple connecting seats 9, and multiple connecting plates 10 are rotatably connected to the inner surfaces of multiple connecting seats 9 and the inner surfaces of two mounting seats 2 via rotating shafts.

[0060] In this embodiment: the connecting seat 9 is fixed to the upper end of the fixed seat 8 and is used to connect the connecting plate 10 to enhance the structural stability. At the same time, the connecting plate 10 is connected to the connecting seat 9 and the mounting seat 2 through the rotating shaft to provide auxiliary support and reduce the impact of vibration.

[0061] Please refer to the details. Figure 1 A connecting bracket 12 is fixedly connected to the adjacent ends of the two bases 6, and a support base 7 is fixedly connected to the upper end of the two bases 6. The inner surfaces of the two support bases 7 and the outer surfaces of the two buffer shells 13 are fixedly connected respectively.

[0062] In this embodiment: the connecting bracket 12 is fixed between the two bases 6 to enhance the overall rigidity and prevent deformation, and the support base 7 is fixed to the upper end of the base 6 to support the buffer shell 13 and ensure its stable installation.

[0063] The working principle and usage process of this utility model are as follows: First, the mass flow meter body 1 is fixed to the pipeline system to ensure normal fluid flow. The angle of the mounting seat 2 is adjusted by the arc plate 3 and bolts 4 to match the pipeline, and then locked with nuts 5. When the pipeline or external environment vibrates, the vibration energy is transmitted to the sliding rod 17 through the mounting seat 2. The sliding rod 17 drives the lower pressure seat 16 to slide up and down in the buffer shell 13. The lower pressure seat 16 compresses the first spring 15, and the elastic deformation of the spring absorbs the vibration energy. The limiting seat 14 limits the movement range of the first spring 15 to prevent excessive compression or rebound. The vibration energy after buffering is greatly reduced, ensuring that the measurement accuracy of the mass flow meter body 1 is not disturbed. When it is necessary to adjust the installation position of the fixed seat 8, an external force is applied to make the limiting plate 19 slide in the sliding groove 18, and the limiting block 24 moves in the limiting groove 23 to ensure that the limiting plate 19 will not disengage from the sliding groove 18. When the external force is removed, the second spring 22 pushes the support frame 21 to make the limiting plate 19 automatically reset and maintain the stable position of the fixed seat 8.

[0064] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A Coriolis mass flowmeter with reduced interference accuracy, characterized in that include: Mass flow meter body (1); Two mounting bases (2) are provided on the outer surface of the mass flow meter body (1), and a base (6) is provided on the lower side of each of the two mounting bases (2). Multiple fixing seats (8) are respectively disposed on both sides of two bases (6), and screws (11) are threadedly connected to the upper end of each of the multiple fixing seats (8). Two sets of buffer mechanisms, each set of buffer mechanisms including: A buffer shell (13) is disposed on the upper end of the base (6). A lower pressure seat (16) is slidably connected to the inner surface of the buffer shell (13). A sliding rod (17) is fixedly connected to the upper end of the lower pressure seat (16). The upper end of the sliding rod (17) is fixedly connected to the lower end of the mounting base (2). A support component is disposed within a buffer shell (13) to support and limit the sliding pressure seat (16).

2. The Coriolis mass flowmeter of claim 1 wherein: the pickoff is a single pickoff. Each set of support components includes: The limiting seat (14) is fixedly connected to the inner surface of the buffer shell (13). The outer surface of the limiting seat (14) is fitted with a first spring (15). The outer surface of the first spring (15) is fixedly connected to the inner surface of the pressure seat (16).

3. The Coriolis mass flowmeter of claim 2 wherein: the pickoff is mounted on the flow tube so that the pickoff is in the flow tube's neutral axis. The outer surfaces of the two mounting bases (2) are rotatably connected to two arc-shaped plates (3) via a rotating shaft. One end of each of the multiple arc-shaped plates (3) is movably connected to two bolts (4), and the circumferential surfaces of the two bolts (4) are threaded with nuts (5).

4. The Coriolis mass flowmeter of claim 3 wherein: the pickoff is a single pickoff. It also includes multiple sets of telescopic mechanisms, each set of which includes: A sliding groove (18) is provided at one end of the base (6). A limiting plate (19) is slidably connected to the inner surface of the sliding groove (18). A connecting block (20) is fixedly connected to the outer surface of the limiting plate (19). One end of the connecting block (20) is fixedly connected to one end of the fixed seat (8). Two limiting grooves (23) are provided on the inner walls of both sides of the sliding groove (18). Limiting blocks (24) are slidably connected to the inner surfaces of the two limiting grooves (23). The close ends of the two limiting blocks (24) are fixedly connected to the two sides of the limiting plate (19). A limiting component is provided in the sliding groove (18) to limit the sliding limiting plate (19).

5. The Coriolis mass flowmeter of claim 4 wherein: the pickoff is a single pickoff. Each set of the limiting components includes: Two support frames (21) are respectively disposed on one side of the inner wall of the two limiting grooves (23), and a second spring (22) is sleeved on the outer surface of each of the two support frames (21).

6. The Coriolis mass flowmeter of claim 5 wherein: the pickoff is a single pickoff. The upper ends of the multiple fixed seats (8) are fixedly connected to the connecting seats (9), and the inner surfaces of the multiple connecting seats (9) and the inner surfaces of the two mounting seats (2) are respectively rotatably connected to multiple connecting plates (10) via rotating shafts.

7. The Coriolis mass flowmeter of claim 6 wherein: the pickoff is a single pickoff. A connecting frame (12) is fixedly connected to the adjacent ends of the two bases (6), and a support seat (7) is fixedly connected to the upper end of the two bases (6). The inner surfaces of the two support seats (7) and the outer surfaces of the two buffer shells (13) are fixedly connected respectively.

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