CN219319493U - Damping vortex shedding flowmeter - Google Patents

Abstract

The utility model relates to the technical field of vortex shedding flow meters and discloses a damping vortex shedding flow meter which comprises a bottom pipe, wherein a meter rod is arranged on the top of the bottom pipe in a threaded manner, a flow display meter is fixedly arranged on the top of the meter rod, a detection probe is fixedly arranged in the bottom pipe, a connecting flange pipe is fixedly arranged on the outer wall of the bottom pipe, and a damping and damping spring is fixedly arranged on the inner wall of the connecting flange pipe. This shock attenuation vortex shedding flowmeter is through the inner wall fixed mounting at the flange pipe to damping spring is connecting the inner tube, and the inner tube has been extended to the inside of end pipe to the inner tube of connection simultaneously, so damping spring can effectively reduce with take over, connect vibrations that produce between inner tube and the flange pipe outward, and the liquid or the gaseous inflow that can not be influenced is inside the end pipe, take over and can receive damping spring's attenuation if receiving the vibrations that equipment operation produced outward.

Description

Damping vortex shedding flowmeter

Technical Field

The utility model relates to the technical field of vortex shedding flowmeters, in particular to a damping vortex shedding flowmeter.

Background

The vortex street flowmeter is a volume flowmeter for measuring the volume flow of gas, steam or liquid, the volume flow of standard condition or the mass flow according to the Karman (Karman) vortex street principle, is mainly used for measuring the flow of industrial pipeline medium fluid, such as various media including gas, liquid, steam and the like, and is characterized by small pressure loss, large range and high precision, is hardly influenced by parameters such as fluid density, pressure, temperature, viscosity and the like when measuring the working condition volume flow, has no movable mechanical parts, and therefore has high reliability and small maintenance amount, the instrument parameter can be stable for a long time, the vortex street flowmeter adopts a piezoelectric stress sensor, has high reliability, can work in the working temperature range of minus 20 ℃ to plus 250 ℃, has analog standard signals, also has digital pulse signal output, is easy to be matched with digital systems such as computers and the like, and is an advanced and ideal measuring instrument.

The vortex shedding flowmeter is used for detecting media such as gas, liquid or steam, and the gas, liquid or steam does not have strong vibration, but the existing flowmeter is divided into a flange connection mode or an inserting mode, and the two modes are both rigid connection modes, so that an external connection pipe connected with the flowmeter is easily affected by vibration of the equipment and transmitted to the flowmeter, and the flowmeter is also easily affected by vibration, and the vibration-reducing vortex shedding flowmeter is provided for solving the problems.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides the damping vortex shedding flowmeter, which has the advantages of damping property, detection accuracy and the like, and solves the problem that hard connection is easy to vibrate.

(II) technical scheme

In order to achieve the aims of shock absorption and detection accuracy, the utility model provides the following technical scheme: the utility model provides a shock attenuation vortex shedding flowmeter, includes the bottom tube, the table pole is installed to the top screw thread of bottom tube, the top fixed mounting of table pole has the flow display table, the inside fixed mounting of bottom tube has test probe, the outer wall fixed mounting of bottom tube has the flange pipe, the inner wall fixed mounting of flange pipe has damping spring, the one end fixed mounting that flange pipe inner wall was kept away from to damping spring has the connection inner tube.

Preferably, the left and right sides of the top of the flow display meter are provided with electrical interfaces, and the center of the top of the bottom tube is provided with a through groove.

Preferably, the number of the connecting inner cylinder and the connecting flange pipe is two, and two opposite ends of the connecting inner cylinder are movably connected to the bottom pipe.

Preferably, the meter rod is in threaded connection with the bottom pipe through a bolt, and one end, far away from the flow display meter, of the meter rod penetrates through the groove and extends to the inside of the bottom pipe.

(III) beneficial effects

Compared with the prior art, the utility model provides a damping vortex shedding flowmeter, which has the following beneficial effects:

this shock attenuation vortex shedding flowmeter through the inner wall fixed mounting at the flange pipe to damping spring is connecting the inner tube, and the inner tube has been extended to the inside of end pipe to the connection inner tube simultaneously, consequently damping spring can effectively reduce with take over, connect the vibrations that produce between inner tube and the flange pipe outward, and the liquid or the gaseous inflow that can not receive the influence is inside the end pipe, take over and can receive damping spring's weakening if receiving the vibrations that equipment operation produced outward, make inflow to the gas or the liquid of end pipe have better stability, make the data that test probe measured more accurate, the whole suitability of being connected to equipment of flowmeter also is stronger, the vibrations that the equipment operation produced that can resist to a certain extent.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is a side view of the structure of the damping spring of the present utility model.

In the figure: the device comprises a bottom tube 1, a meter rod 2, a flow display meter 3, a detection probe 4, a connecting flange tube 5, a damping spring 6 and an inner connecting tube 7.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-2, a vibration-damping vortex shedding flowmeter includes a bottom tube 1, a meter rod 2 is mounted on the top thread of the bottom tube 1, a flow display meter 3 is fixedly mounted on the top of the meter rod 2, the meter rod 2 is connected with the bottom tube 1 through a bolt, one end of the meter rod 2 far away from the flow display meter 3 penetrates through a groove and extends to the inside of the bottom tube 1 for detecting flow data, electric interfaces are formed on the left side and the right side of the top of the flow display meter 3, a through groove is formed in the center of the top of the bottom tube 1 for displaying structural components for measuring data, a detection probe 4 is fixedly mounted in the inside of the bottom tube 1, a connecting flange tube 5 is fixedly mounted on the outer wall of the bottom tube 1, a damping vibration-damping spring 6 is fixedly mounted on the inner wall of the connecting flange tube 5, one end of the damping vibration-damping spring 6 far away from the inner wall of the connecting flange tube 5 is fixedly mounted with a connecting inner tube 7, the quantity of the connecting inner tube 7 and the connecting flange tube 5 are two, opposite ends of the two connecting inner tubes 7 are movably connected to the bottom tube 1, the connecting inner tube 1 are communicated with the bottom tube 1 through the connecting inner tube 7, and the problem that direct connection of the connecting flange tube 1 and the connecting flange 1 and the connecting tube is easy is directly connected is avoided.

When the damping shock-absorbing device is used, the bottom pipe 1 and the outer connecting pipe are connected through the connecting flange pipe 5, the damping shock-absorbing spring 6 is connected with the connecting inner cylinder 7 and the connecting flange pipe 5, so that the main flow mode of gas and liquid flows into the bottom pipe 1 through the connecting inner cylinder 7, and vibration generated by equipment operation is reduced and transmitted to the bottom pipe 1 through the connecting flange pipe 5.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. The utility model provides a shock attenuation vortex shedding flowmeter, includes bottom tube (1), its characterized in that: the utility model discloses a flow meter, including meter rod (2) is installed to the top screw thread of end pipe (1), meter rod (2)'s top fixed mounting has flow display table (3), the inside fixed mounting of end pipe (1) has test probe (4), the outer wall fixed mounting of end pipe (1) has flange pipe (5), the inner wall fixed mounting of flange pipe (5) has damping spring (6), damping spring (6) are kept away from the one end fixed mounting of flange pipe (5) inner wall and are connected inner tube (7).

2. A shock absorbing vortex shedding flowmeter as claimed in claim 1, wherein: the left side and the right side of the top of the flow display meter (3) are provided with electrical interfaces, and the center of the top of the bottom tube (1) is provided with a through groove.

3. A shock absorbing vortex shedding flowmeter as claimed in claim 1, wherein: the number of the connecting inner cylinders (7) and the number of the connecting flange pipes (5) are two, and one ends, opposite to the connecting inner cylinders (7), of the connecting inner cylinders are movably connected to the bottom pipe (1).

4. A shock absorbing vortex shedding flowmeter as claimed in claim 1 or claim 2, wherein: the meter rod (2) is in threaded connection with the bottom pipe (1) through a bolt, and one end, far away from the flow display meter (3), of the meter rod (2) penetrates through the groove and extends to the inside of the bottom pipe (1).

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