CN220120169U

CN220120169U - Shock-absorbing mass flowmeter

Info

Publication number: CN220120169U
Application number: CN202321672591.8U
Authority: CN
Inventors: 刘源; 江燕; 袁丽芳; 李瑞萍; 王惠
Original assignee: Qingdao Jinzhonglian Technology Development Co ltd
Current assignee: Qingdao Jinzhonglian Technology Development Co ltd
Priority date: 2023-06-29
Filing date: 2023-06-29
Publication date: 2023-12-01
Anticipated expiration: 2033-06-29

Abstract

The utility model provides a damping type mass flowmeter, which belongs to the technical field of mass flowmeter damping, and comprises a mass flowmeter body and a damping device; the mass flowmeter body is arranged on a pipeline to be measured through mounting flanges arranged at two ends, the damping device comprises a first bracket and a second bracket, the damping boxes are fixedly connected to the opposite sides of the first bracket and the second bracket, the inner cavities of the damping boxes are provided with a plurality of sliding rods in a penetrating mode, the outer sides of the sliding rods are fixedly connected with connecting plates, the outer sides of the connecting plates are fixedly connected with second buffer springs, and the inner sides of the sliding rods are fixedly connected with arc-shaped hoop plates; the mass flowmeter body is arranged in an annular inner hole formed by assembling the first bracket and the second bracket in a penetrating way, and the side wall of the mass flowmeter body is abutted with the inner side wall of the arc-shaped hoop plate; the bottoms of the first bracket and the second bracket are connected with a support; the utility model can reduce the negative influence of vibration interference on the measurement result of the mass flowmeter and ensure the accuracy and stability of the measurement result.

Description

Shock-absorbing mass flowmeter

Technical Field

The utility model belongs to the technical field of mass flowmeter damping, and particularly relates to a damping mass flowmeter.

Background

Mass flowmeters are important devices that are widely used in the field of fluid control and flow measurement. The fluid flow is determined by measuring the mass of the flowing medium, and mass flowmeters play an important role in industrial process control, energy management, environmental monitoring, laboratory research and the like.

Chinese patent of utility model (application number: CN 202220523727.8) with publication number CN216978002U proposes a coriolis mass flowmeter, whose structure comprises a mixing device and a mass flowmeter body; the mixing device is provided with a mixing pipeline, and is communicated with the mass flowmeter main body to form a rotational flow assembly, and part of the rotational flow assembly is positioned in the mixing pipeline to enable fluid to generate rotational flow; the rotational flow assembly is provided with a positive spiral blade and a negative spiral blade which are opposite in rotation direction; the rectifying plate is connected with the mixing pipeline and is positioned between the cyclone component and the mass flowmeter main body; and finally, the cyclone assembly, the mixing pipeline, the rectifying plate and the mass flowmeter main body are all connected through flanges. The Coriolis mass flowmeter is beneficial to improving measurement accuracy, and meanwhile, components are convenient to clean and replace.

The above-mentioned utility model fails to consider the influence of other vibration sources (such as mechanical vibration, pipe vibration, noise interference, etc.) existing in the installation area on the mass flowmeter in practical application, and the vibration interference can negatively affect the measurement result of the mass flowmeter, so that the accuracy and stability of the measurement result cannot be ensured.

Disclosure of Invention

In view of the above, the present utility model provides a shock absorption type mass flowmeter, which can solve the problem that the vibration interference can negatively affect the measurement result of the mass flowmeter, and ensure the accuracy and stability of the measurement result.

The utility model is realized in the following way:

the utility model provides a damping type mass flowmeter, which comprises a mass flowmeter body and a damping device;

the mass flowmeter body is arranged on a pipeline to be measured through mounting flanges arranged at two ends and is used for measuring the flow of fluid in the pipeline;

the damping device comprises a first bracket and a second bracket, wherein the right side of the first bracket and the left side of the second bracket are fixedly connected with damping boxes, the inner cavities of the damping boxes are provided with a plurality of sliding rods in a penetrating mode, the outer sides of the sliding rods are fixedly connected with connecting plates, the outer sides of the connecting plates are fixedly connected with second buffer springs, and the inner sides of the sliding rods are fixedly connected with arc-shaped hoop plates; the mass flowmeter body is arranged in an annular inner hole formed after the first bracket and the second bracket are assembled in a penetrating way, and the side wall of the mass flowmeter body is abutted with the inner side wall of the arc-shaped hoop plate; the bottoms of the first bracket and the second bracket are connected with a support through a movable connecting mechanism.

The utility model provides a damping mass flowmeter which has the following technical effects: the damping device is sleeved on the outer side of the mass flowmeter body, a first buffer spring arranged in the support is used as a first damping barrier, a second buffer spring arranged in the first support and the second support is used as a second damping barrier, and a damping pad arranged on the arc-shaped hoop plate is combined to be used as a third damping barrier; the vibration action of other vibration sources in the installation area on the mass flowmeter body is buffered or even eliminated by utilizing the elastic performance of the spring and the vibration absorbing performance of the flexible material, so that the purpose of avoiding vibration interference is achieved, metering errors are avoided, and the detection precision of the mass flowmeter body is improved; through setting up a plurality of damping device, and set up a plurality of slide bars along the radial direction of mass flowmeter body in the damper in every damping device, can follow the vibrations of different angles to mass flowmeter body and cushion, improve the shock attenuation effect.

Based on the technical scheme, the damping mass flowmeter can be further improved as follows:

the top of the first support extends upwards along the vertical direction to form a first connecting plate, the top of the second support extends upwards along the vertical direction to form a second connecting plate, threaded holes are formed in the middle of the first connecting plate and the middle of the second connecting plate, locking bolts are installed in the threaded holes, and the first connecting plate is fixedly connected with the second connecting plate through the locking bolts.

The beneficial effects of adopting above-mentioned improvement scheme are: the locking bolt is used for fixedly connecting the top of the first bracket and the top of the second bracket, and the locking bolt has the characteristics of simple structure and convenience in disassembly and assembly.

Further, a sliding groove is formed in the top of the support, a sliding block is connected in the sliding groove in a sliding mode, and the bottom of the first support and the bottom of the second support are symmetrically hinged to two sides of the sliding block; the movable connecting mechanism comprises the sliding groove and the sliding block.

Further, guide rods are arranged on two sides of the sliding block hinged with the first bracket and the second bracket, and slide left and right in the sliding groove along with the sliding block; the sliding groove is internally provided with a first buffer spring, and the first buffer spring is sleeved on the outer side of the guide rod.

The beneficial effects of adopting above-mentioned improvement scheme are: through the arranged sliding groove, after the first bracket, the second bracket and the mass flowmeter body connected internally are subjected to vibration, the damping effect of the second buffer spring is achieved under the buffering effect and absorption of the second buffer spring; through setting up the guide bar and wearing to establish in first buffer spring, can avoid first buffer spring to take place to crooked and lose cushioning effect after receiving the extrusion, guarantee the stability of shock attenuation effect.

Further, one end of the first buffer spring is abutted with the sliding block; the other end of the first buffer spring is abutted with one end face, away from the sliding block, of the sliding groove.

Further, a groove is formed in the inner side of the inner wall of the shock absorption box and corresponds to the sliding rod, and the diameter of the groove is larger than that of the sliding rod.

Further, the outer side of the second buffer spring is fixedly connected with an arc-shaped connecting plate, and the outer side of the arc-shaped connecting plate is fixedly connected with the inner side of the outer wall of the shock absorption box.

Further, a shock pad is further arranged on the inner side wall of the arc-shaped hoop plate.

The beneficial effects of adopting above-mentioned improvement scheme are: through setting up the shock pad, utilize the flexible material characteristic of shock pad, have the guard action to the lateral wall of mass flowmeter body, avoid mass flowmeter body and first support, the contact position of second support to cause the damage, simultaneously, still have the effect to further buffering of vibrations.

Further, the number of the damping devices is greater than two, and the damping devices are equidistantly arranged on the side wall of the mass flowmeter body.

Further, screw holes for installation are formed in the periphery of the top of the support.

Compared with the prior art, the damping mass flowmeter provided by the utility model has the beneficial effects that: the damping device is sleeved on the outer side of the mass flowmeter body, a first buffer spring arranged in the support is used as a first damping barrier, a second buffer spring arranged in the first support and the second support is used as a second damping barrier, and a damping pad arranged on the arc-shaped hoop plate is combined to be used as a third damping barrier; the vibration action of other vibration sources in the installation area on the mass flowmeter body is buffered or even eliminated by utilizing the elastic performance of the spring and the vibration absorbing performance of the flexible material, so that the purpose of avoiding vibration interference is achieved, metering errors are avoided, and the detection precision of the mass flowmeter body is improved; through setting up a plurality of damping device, and set up a plurality of slide bars along the radial direction of mass flowmeter body in the damper in every damping device, can follow the vibrations of different angles to mass flowmeter body and cushion, improve the shock attenuation effect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments of the present utility model will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of a shock-absorbing mass flowmeter according to the present utility model;

FIG. 2 is a schematic view of a damping device in a damping type mass flowmeter according to the present utility model;

FIG. 3 is an enlarged view at A in FIG. 2;

FIG. 4 is a schematic view of a support in a shock absorption type mass flowmeter according to the present utility model;

in the drawings, the list of components represented by the various numbers is as follows:

10. a mass flow meter body; 11. installing a flange plate; 20. a support; 201. a chute; 202. a slide block; 203. a guide rod; 204. a first buffer spring; 21. a first bracket; 211. a first connection plate; 22. a second bracket; 221. a second connecting plate; 23. a damper box; 231. a slide bar; 232. a connecting plate; 233. a second buffer spring; 234. an arc-shaped hoop plate; 2341. a shock pad; 235. a groove; 236. an arc-shaped connecting plate; 24. a locking bolt.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

1-4, a shock absorption type mass flowmeter provided by the utility model comprises a mass flowmeter body 10 and a shock absorption device;

the mass flowmeter body 10 is arranged on a pipeline to be measured through mounting flanges 11 arranged at two ends and is used for measuring the flow of fluid in the pipeline;

the damping device comprises a first bracket 21 and a second bracket 22, wherein the right side of the first bracket 21 and the left side of the second bracket 22 are fixedly connected with a damping box 23, the inner cavity of the damping box 23 is provided with a plurality of sliding rods 231 in a penetrating way, the outer sides of the sliding rods 231 are fixedly connected with connecting plates 232, the outer sides of the connecting plates 232 are fixedly connected with second buffer springs 233, and the inner sides of the sliding rods 231 are fixedly connected with arc-shaped hoop plates 234; the mass flowmeter body 10 is arranged in an annular inner hole formed by assembling the first bracket 21 and the second bracket 22 in a penetrating way, and the side wall of the mass flowmeter body 10 is abutted with the inner side wall of the arc-shaped hoop plate 234; the bottoms of the first bracket 21 and the second bracket 22 are connected with a support 20 through a movable connecting mechanism.

In use, a user installs the damping device at both ends of the mass flow meter body 10; during installation, the first bracket 21 and the second bracket 22 are firstly opened, buckled on the left side and the right side of the mass flowmeter body 10, the first connecting plate 211 and the second connecting plate 221 are fixedly connected through the locking bolt 24, and then the support 20 is installed at the position to be measured and is fixed; when other vibration sources exist in the installation area to interfere, the vibration source acts on the support 20 at first, the first buffer spring 204 arranged in the chute 201 is extruded when the support 20 vibrates, and part of vibration is absorbed under the elastic action of the first buffer spring 204, so that the vibration acting on the sliding block 202, the first support 21 and the second support 22 is weakened; when the residual vibration acts on the first bracket 21 and the second bracket 22, the vibration is firstly transmitted to the damping box 23 through the first bracket 21 and the second bracket 22, then transmitted to the arc-shaped connecting plate 236 through the damping box 23, finally transmitted to the second buffer spring 233, and further absorbed by the elasticity of the second buffer spring 233, the vibration is weakened or even eliminated, then, the residual vibration is transmitted to the mass flowmeter body 10 through the connecting plate 232, finally reaches the arc-shaped hoop plate 234 and the damping pad 2341, and the vibration is absorbed again under the elasticity of the damping pad 2341, so that triple damping effect is achieved.

In the above technical solution, the top of the first bracket 21 extends upward along the vertical direction to form the first connection plate 211, the top of the second bracket 22 extends upward along the vertical direction to form the second connection plate 221, the middle parts of the first connection plate 211 and the second connection plate 221 are provided with threaded holes, locking bolts 24 are installed in the threaded holes, and the first connection plate 211 and the second connection plate 221 are fixedly connected through the locking bolts 24.

Further, in the above technical solution, a sliding groove 201 is provided at the top of the support 20, a sliding block 202 is slidably connected in the sliding groove 201, and the bottom of the first bracket 21 and the bottom of the second bracket 22 are symmetrically hinged on two sides of the sliding block 202; the movable connecting mechanism comprises a chute 201 and a sliding block 202.

When in use, the bottoms of the first bracket 21 and the second bracket 22 are respectively hinged with the two sides of the top of the guide rod 203, so that the first bracket 21 and the second bracket 22 can rotate along the hinging part under the unfixed state of the first connecting plate 211 and the second connecting plate 221 to adapt to the diameter of the mass flowmeter body 10; when the sliding block 202 slides in the sliding groove 201, the first bracket 21 and the second bracket 22 are driven to slide together.

Further, in the above technical solution, two sides of the slider 202 hinged to the first bracket 21 and the second bracket 22 are provided with guide rods 203, and the guide rods 203 slide left and right in the chute 201 along with the slider 202; a first buffer spring 204 is further arranged in the chute 201, and the first buffer spring 204 is sleeved on the outer side of the guide rod 203.

When in use, when the sliding block 202 slides in the sliding groove 201, the guide rod 203 arranged along the sliding direction is driven to slide together, meanwhile, the first buffer spring 204 is extruded, and under the action of the resilience force of the first buffer spring 204, the sliding block 202 is subjected to the acting force opposite to the sliding direction, so that the sliding block 202 has a resetting trend.

Further, in the above-mentioned technical solution, one end of the first buffer spring 204 is abutted against the slider 202; the other end of the first buffer spring 204 abuts against an end surface of the chute 201 away from the slider 202.

Further, in the above technical solution, the inner side of the inner wall of the damper box 23 is provided with a groove 235 at a position corresponding to the slide bar 231, and the diameter of the groove 235 is larger than the diameter of the slide bar 231.

In use, the end of the slide bar 231 is threaded into the recess 235 and is capable of reciprocating within the recess 235.

Further, in the above technical solution, the outer side of the second buffer spring 233 is fixedly connected with an arc-shaped connecting plate 236, and the outer side of the arc-shaped connecting plate 236 is fixedly connected with the inner side of the outer wall of the damper box 23.

Further, in the above-described embodiment, a shock pad 2341 is further provided on the inner side wall of the arcuate band plate 234.

In use, shock pad 2341 is nested between arcuate band plate 234 and mass flow meter body 10.

Further, in the above technical solution, the number of the damping devices is greater than two, and the damping devices are equidistantly arranged on the side wall of the mass flowmeter body 10.

Further, in the above technical solution, screw holes for installation are provided around the top of the support 20.

Specifically, the principle of the utility model is as follows: when other vibration sources exist in the installation area of the mass flowmeter to interfere, vibration firstly acts on the support 20, the support 20 presses the first buffer spring 204 arranged in the chute 201 during vibration, and part of the vibration is absorbed under the elastic action of the first buffer spring 204, so that the vibration acting on the sliding block 202, the first support 21 and the second support 22 is weakened; when the residual vibration acts on the first bracket 21 and the second bracket 22, the vibration is firstly transmitted to the damping box 23 through the first bracket 21 and the second bracket 22, then transmitted to the arc-shaped connecting plate 236 through the damping box 23, finally transmitted to the second buffer spring 233, and further absorbed by the elasticity of the second buffer spring 233, the vibration is weakened or even eliminated, then, the residual vibration is transmitted to the mass flowmeter body 10 through the connecting plate 232, finally reaches the arc-shaped hoop plate 234 and the damping pad 2341, and the vibration is absorbed again under the elasticity of the damping pad 2341, so that triple damping effect is achieved.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims

1. A damping type mass flowmeter, comprising a mass flowmeter body (10) and a damping device;

the mass flowmeter body (10) is arranged on a pipeline to be measured through mounting flanges (11) arranged at two ends and is used for measuring the flow of fluid in the pipeline;

the damping device is characterized by comprising a first bracket (21) and a second bracket (22), wherein the right side of the first bracket (21) and the left side of the second bracket (22) are fixedly connected with a damping box (23), a plurality of sliding rods (231) are arranged in the inner cavity of the damping box (23) in a penetrating way, a connecting plate (232) is fixedly connected to the outer side of the sliding rods (231), a second buffer spring (233) is fixedly connected to the outer side of the connecting plate (232), and an arc-shaped hoop plate (234) is fixedly connected to the inner side of the sliding rods (231); the mass flowmeter body (10) is arranged in an annular inner hole formed by the first bracket (21) and the second bracket (22) in a penetrating way, and the side wall of the mass flowmeter body (10) is abutted with the inner side wall of the arc-shaped hoop plate (234); the bottoms of the first bracket (21) and the second bracket (22) are connected with a support (20) through a movable connecting mechanism.

2. The shock absorption type mass flowmeter according to claim 1, wherein the top of the first bracket (21) extends upwards along the vertical direction to form a first connecting plate (211), the top of the second bracket (22) extends upwards along the vertical direction to form a second connecting plate (221), threaded holes are formed in the middle of the first connecting plate (211) and the middle of the second connecting plate (221), locking bolts (24) are installed in the threaded holes, and the first connecting plate (211) and the second connecting plate (221) are fixedly connected through the locking bolts (24).

3. The shock-absorbing mass flowmeter of claim 2, wherein a chute (201) is arranged at the top of the support (20), a sliding block (202) is connected in a sliding manner in the chute (201), and the bottoms of the first bracket (21) and the second bracket (22) are symmetrically hinged on two sides of the sliding block (202); the movable connecting mechanism comprises the sliding groove (201) and the sliding block (202).

4. A shock-absorbing mass flowmeter according to claim 3, wherein two sides of the slider (202) hinged to the first bracket (21) and the second bracket (22) are provided with guide rods (203), and the guide rods (203) slide left and right in the chute (201) together with the slider (202); a first buffer spring (204) is further arranged in the sliding groove (201), and the first buffer spring (204) is sleeved on the outer side of the guide rod (203).

5. The shock mass flowmeter of claim 4, wherein one end of the first buffer spring (204) abuts the slider (202); the other end of the first buffer spring (204) is abutted with one end face, away from the sliding block (202), of the sliding groove (201).

6. The shock-absorbing mass flowmeter of claim 5, wherein a groove (235) is formed in a position corresponding to the slide bar (231) on the inner side of the inner wall of the shock-absorbing tank (23), and the diameter of the groove (235) is larger than that of the slide bar (231).

7. The shock-absorbing mass flowmeter of claim 6, wherein the outer side of the second buffer spring (233) is fixedly connected with an arc-shaped connecting plate (236), and the outer side of the arc-shaped connecting plate (236) is fixedly connected with the inner side of the outer wall of the shock-absorbing box (23).

8. The shock mass flowmeter of claim 7, wherein the arcuate cuff plates (234) further comprise shock pads (2341) on an inner side wall thereof.

9. A damped mass flowmeter according to claim 8, wherein the number of damper means is greater than two, equidistantly disposed on the side wall of the mass flowmeter body (10).

10. A shock mass flowmeter according to claim 9, wherein the top of the support (20) is provided with threaded holes for mounting around it.