Resonance type Coriolis mass flowmeter

Abstract

The utility model relates to the field of flow meters, in particular to a resonance type Coriolis mass flow meter, which is characterized in that two positioning plates are symmetrically arranged at two ends of a support frame, a cavity is arranged on each positioning plate, a positioning block penetrated by a vibrating tube is arranged inside each cavity, a plurality of elastic blocks fixed on the inner wall of each cavity are arranged on the peripheral side of each positioning block, and the elastic blocks are fixed on the inner wall of each cavity. A supporting assembly used for supporting the adapter pipe is arranged in the middle of the supporting frame, when the adapter pipe vibrates, the positioning block extrudes the elastic block in different directions, the elastic block can deform to different degrees, and therefore vibration cannot be conducted to parts in the flowmeter body through the adapter pipe. The resonant frequency of the adapter pipe and other parts is reduced, and the accuracy of the flowmeter body in use can be improved.

Description

Technical Field

[0001] The utility model relates to the field of flow meters, in particular to a resonance type Coriolis mass flow meter. Background Art

[0002] A flow meter is an instrument used to measure the flow of fluid in a pipe or open channel. A flow meter can accurately measure the flow of fluid or gas, helping users understand flow changes so that they can make adjustments and optimizations.

[0003] The two vibrating tubes (sensor tubes) of a traditional Coriolis mass flowmeter will vibrate when in use, which can easily transmit the vibration intensity to the internal parts of the flowmeter, reducing the accuracy of the flowmeter when in use. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a resonance type Coriolis mass flowmeter.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a resonant Coriolis mass flowmeter, comprising a flowmeter body, a shell is provided at the top of the flowmeter body, a transfer tube is provided inside the shell, vibration tubes are provided at both ends of the transfer tube, a support frame is provided inside the shell, two positioning plates are symmetrically arranged at both ends of the support frame, a cavity is provided on the positioning plate, a positioning block penetrated by the vibration tube is provided inside the cavity, a plurality of elastic blocks fixed on the inner wall of the cavity are provided on the circumference of the positioning block, and a support assembly for supporting the transfer tube is provided in the middle part of the support frame.

[0008] In order to improve the stability of the adapter tube when in use, the improvement of the utility model is that the support assembly includes two elastic rods, one end of the elastic rod is fixed to the inner side of the support frame, and the other end of the elastic rod is fixedly provided with a fixed half ring, the two fixed half rings are respectively located on both sides of the adapter tube, and the two fixed half rings are fixed by screws.

[0009] In order to improve the stability of the elastic rods when in use, the utility model is improved in that a plurality of connecting rods are arranged between the two elastic rods.

[0010] In order to make the elastic block installed more firmly, the improvement of the utility model is that a plurality of grooves are provided on the inner wall of the cavity, and a plurality of elastic blocks matching with the grooves are provided on the peripheral side of the positioning block.

[0011] Furthermore, the improvement of the utility model is that the elastic block is bonded inside the groove.

[0012] Furthermore, the present invention is improved in that the elastic block and the connecting rod are both made of rubber.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides a resonant Coriolis mass flowmeter, which has the following beneficial effects:

[0015] The resonant Coriolis mass flowmeter can limit the transfer tube by a supporting assembly. Two positioning plates are respectively located upstream and downstream of the transfer tube. When the transfer tube vibrates, the positioning blocks will squeeze the elastic blocks in different directions, causing the elastic blocks to deform to varying degrees. This prevents the transfer tube from transmitting vibrations to parts in the flowmeter body, reduces the resonance frequency of the transfer tube and other parts, and improves the accuracy of the flowmeter body when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0018] Figure 3 This is a schematic diagram of the structure of the utility model Figure 3 ;

[0019] Figure 4 This is a schematic diagram of the structure of the utility model Figure 4 ;

[0020] In the figure: 1. flow meter body; 2. shell; 3. support frame; 4. positioning plate; 5. cavity; 6. transfer tube; 7. vibration tube; 8. positioning block; 9. elastic block; 10. groove; 11. elastic rod; 12. fixed half ring; 13. connecting rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4A resonant Coriolis mass flowmeter, comprising a flowmeter body 1, a shell 2 is provided at the top of the flowmeter body 1, a transfer tube 6 is provided inside the shell 2, vibration tubes 7 are provided at both ends of the transfer tube 6, a support frame 3 is provided inside the shell 2, two positioning plates 4 are symmetrically provided at both ends of the support frame 3, a cavity 5 is provided on the positioning plate 4, a positioning block 8 penetrated by the vibration tube 7 is provided inside the cavity 5, a plurality of elastic blocks 9 fixed on the inner wall of the cavity 5 are provided on the peripheral side of the positioning block 8, and a support assembly for supporting the transfer tube 6 is provided in the middle part of the support frame 3;

[0023] In this structure, the vibration tubes 7 at both ends of the transfer tube 6 are connected to the designated flowmeter inside the shell 2, and the support frame 3 is fixed to the designated position inside the flowmeter body 1 by screws. The transfer tube 6 can be limited by the support assembly, and the two positioning plates 4 are respectively located upstream and downstream of the transfer tube 6. When the transfer tube 6 vibrates, the positioning block 8 will squeeze the elastic block 9 in different directions, which can cause the elastic block 9 to deform to different degrees, so that the transfer tube 6 will not transmit the vibration to the parts in the flowmeter body 1, so that the resonance frequency of the transfer tube 6 and other parts is reduced, which can improve the accuracy of the flowmeter body 1 when in use.

[0024] Furthermore, the support assembly includes two elastic rods 11, one end of the elastic rod 11 is fixed to the inner side of the support frame 3, and the other end of the elastic rod 11 is fixedly provided with a fixed half ring 12, the two fixed half rings 12 are respectively located on both sides of the transfer tube 6, and the two fixed half rings 12 are fixed by screws. The elastic rods 11 and the fixed half rings 12 can provide a limiting effect for the transfer tube 6, so that when the transfer tube 6 vibrates, the position of the transfer tube 6 will not move a large distance, which can improve the stability of the transfer tube 6 when in use.

[0025] Furthermore, a plurality of connecting rods 13 are provided between the two elastic rods 11. The plurality of connecting rods 13 can provide a limiting function between the two elastic rods 11, thereby improving the stability of the elastic rods 11 when in use.

[0026] In this structure, a plurality of grooves 10 are provided on the inner wall of the cavity 5, and a plurality of elastic blocks 9 cooperating with the grooves 10 are provided on the peripheral side of the positioning block 8. The elastic blocks 9 are bonded to the inside of the grooves 10. The grooves 10 can provide a limiting effect on the inner wall of the cavity 5, so that the elastic blocks 9 can be installed more firmly.

[0027] Furthermore, the elastic block 9 and the connecting rod 13 can be made of rubber.

[0028] In the description of this article, it should be noted that relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A resonant Coriolis mass flowmeter, comprising a flowmeter body (1), a housing (2) being provided at the top of the flowmeter body (1), a transfer tube (6) being provided inside the housing (2), and vibration tubes (7) being provided at both ends of the transfer tube (6), characterized in that: A support frame (3) is provided inside the shell (2), two positioning plates (4) are symmetrically arranged at both ends of the support frame (3), a cavity (5) is provided on the positioning plate (4), a positioning block (8) penetrated by a vibration tube (7) is provided inside the cavity (5), a plurality of elastic blocks (9) fixed on the inner wall of the cavity (5) are provided on the peripheral side of the positioning block (8), and a support assembly for supporting the transfer tube (6) is provided in the middle part of the support frame (3).

2. A resonant Coriolis mass flowmeter according to claim 1, characterized in that: The support assembly comprises two elastic rods (11), one end of the elastic rod (11) is fixed to the inner side of the support frame (3), and the other end of the elastic rod (11) is fixedly provided with a fixing half ring (12), the two fixing half rings (12) are respectively located on both sides of the transfer tube (6), and the two fixing half rings (12) are fixed by screws.

3. A resonant Coriolis mass flowmeter according to claim 2, characterized in that: A plurality of connecting rods (13) are arranged between the two elastic rods (11).

4. A resonant Coriolis mass flowmeter according to claim 3, characterized in that: A plurality of grooves (10) are provided on the inner wall of the cavity (5), and a plurality of elastic blocks (9) cooperating with the grooves (10) are provided on the peripheral side of the positioning block (8).

5. A resonant Coriolis mass flowmeter according to claim 4, characterized in that: The elastic block (9) is bonded inside the groove (10).

6. A resonant Coriolis mass flowmeter according to claim 5, characterized in that: The elastic block (9) and the connecting rod (13) are both made of rubber.

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