CN218994424U

CN218994424U - Pipeline type anti-seismic vortex shedding flowmeter

Info

Publication number: CN218994424U
Application number: CN202223553269.1U
Authority: CN
Inventors: 孙鹏; 孙文; 王贤健; 冯旭; 王艳华
Original assignee: Dalian Metern Measurement And Control System Co ltd
Current assignee: Dalian Metern Measurement And Control System Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-05-09
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses a pipeline type anti-seismic vortex shedding flowmeter, which comprises: the measuring tube is connected with the gauge outfit through a connecting tube; the two anti-seismic assemblies are detachably mounted on two sides of the outer wall of the measuring tube respectively and comprise two fixing bodies which comprise fixing bottom plates. This pipeline formula antidetonation vortex shedding flowmeter, when survey buret receives pipeline vibrations, vibrations can be transmitted earlier on the rubber layer, the rubber layer is through its self elastic action down, play first level's elasticity buffering, and when vibrations are passed through the rubber layer by arc inner panel and are continued outside transmission, can compress the elasticity ball, under the elastic action of elasticity ball, play second level's elasticity buffering, under dual shock attenuation measure, play and transversely subtract heavy buffering to the pipeline shock sensation, and then avoid vibrations directly to transmit for the probe, and then do benefit to the precision that avoids disturbing the flowmeter.

Description

Pipeline type anti-seismic vortex shedding flowmeter

Technical Field

The utility model relates to the technical field of flow meters, in particular to a pipeline type anti-seismic vortex shedding flow meter.

Background

The vortex street flowmeter is a volume flowmeter which is produced according to the Karman vortex street principle and used for measuring the volume flow of gas, steam or liquid, the volume flow or mass flow of standard conditions. The flow meter is mainly used for measuring the flow of industrial pipeline medium fluid, such as various mediums including gas, liquid, steam and the like.

The existing vortex shedding flowmeter is characterized in that vortex shedding signal generators are axially arranged in parallel with a probe, tail fins of the probe (after fluid vibration signals are detected by the tail fins of the probe, the tail fins are transmitted to piezoelectric crystals in the probe, stress surfaces of the piezoelectric crystals are arranged in parallel with stress surfaces of tail fins of the probe) are arranged in parallel with the flow direction of the fluid, the vortex shedding flowmeter with the arrangement structure is particularly sensitive to mechanical vibration (the mechanical vibration mainly refers to radial vibration of a pipeline), the probe can not only sense vortex shedding force generated by the fluid, but also sense pipeline vibration caused by fluid flushing the pipeline or other external reasons and directly transmit the pipeline vibration to the probe, so that the tail fins of the probe vibrate, and the probe can generate interference charges, thereby interfering the accuracy of the vortex shedding flowmeter.

Disclosure of Invention

The utility model aims to provide a pipeline type anti-seismic vortex shedding flowmeter, which aims to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a ducted shock resistant vortex shedding flowmeter comprising:

the measuring tube is connected with the gauge outfit through a connecting tube;

the two anti-seismic assemblies are detachably mounted on two sides of the outer wall of the measuring tube respectively, each anti-seismic assembly comprises two fixing bodies, each fixing body comprises a fixing base plate, each supporting leg is mounted on the top end of each fixing base plate, each supporting leg is fixedly connected with an arc-shaped outer plate through a side block which is movably welded with each supporting leg, each arc-shaped outer plate is connected with an arc-shaped inner plate through an elastic piece mounted on the inner wall surface of each arc-shaped outer plate, and the inner wall surface of each arc-shaped inner plate is adhered with a rubber layer.

As a further scheme of the utility model: the elastic piece comprises two limiting blocks A and two limiting blocks B, wherein the two limiting blocks A are oppositely arranged and welded on the inner wall surface of the arc-shaped outer plate, the two elastic piece is oppositely arranged and welded on the outer wall surface of the arc-shaped inner plate, and an elastic ball is bonded between the two limiting blocks A and the two limiting blocks B.

As still further aspects of the utility model: the stabilizer blade includes the riser, the slide hole sliding connection that the riser offered through its top has the slide bar, the lantern ring has been cup jointed to the position department of leaning on of slide bar outer wall, the outer wall of slide bar and be located between riser and the lantern ring and cup jointed the spring.

As still further aspects of the utility model: the arc-shaped outer plate is characterized in that connecting lugs are welded at the upper and lower positions of the outer wall surface of the arc-shaped outer plate, the connecting lugs on the two sides are fixed together through bolts, and threaded holes matched with the bolts are formed in the connecting lugs in a penetrating mode.

As still further aspects of the utility model: the measuring tube is characterized in that flange plates are welded at two ends of the measuring tube, a vortex generating body is arranged at a position, close to the air inlet, inside the measuring tube, a sensor probe is arranged inside the connecting tube, and the sensor probe is located inside the measuring tube.

Compared with the prior art, the utility model has the beneficial effects that:

1. the utility model discloses, when survey buret receives pipeline vibrations, vibrations can be transmitted earlier on the rubber layer, under the elastic action of rubber layer through its own, play first level's elasticity buffering, and when vibrations pass through the rubber layer and continue outside transmission by the arc inner panel, can compress the elastic ball, under the elastic action of elastic ball, play second level's elasticity buffering, under dual shock attenuation measure, play and transversely subtract heavy buffering to the pipeline shock sense, and then avoid vibrations direct transfer to the probe, and then do benefit to and avoid interfering the precision to the flowmeter.

2. The utility model discloses, when receiving vertical vibrations, the slide bar can compress the spring because of vibrations when the downwardly moving, under the elastic action of spring, play under the elastic action of palsy vibration buffering, belong to the elastic buffering of third level, under the effect of multilayer, multiple elasticity protection, effectually absorb the elimination to the vibrations that the flowmeter received, guarantee the stable and normal work of flowmeter.

Drawings

FIG. 1 is a schematic view of a pipeline type anti-seismic vortex shedding flowmeter;

FIG. 2 is a side view of an anti-vibration assembly in a pipeline anti-vibration vortex shedding flowmeter;

fig. 3 is an enlarged schematic view of the structure of the pipeline type anti-vibration vortex shedding flowmeter at a position a in fig. 2.

In the figure: the measuring tube 1, the flange plate 2, the gauge outfit 3, the connecting tube 4, the anti-vibration component 5, the arc-shaped outer plate 6, the connecting convex block 7, the arc-shaped inner plate 8, the rubber layer 9, the elastic piece 10, the side block 11, the slide bar 12, the lantern ring 13, the spring 14, the vertical tube 15, the fixed bottom plate 16, the supporting leg 17, the limiting block A18, the elastic ball 19 and the limiting block B20.

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 to 3, the present utility model proposes a technical solution, a pipeline type anti-seismic vortex shedding flowmeter, comprising:

the measuring tube 1 is connected with the gauge outfit 3 through a connecting tube 4;

the two anti-seismic assemblies 5, the two anti-seismic assemblies 5 are detachably mounted on two sides of the outer wall of the measuring tube 1 respectively, the anti-seismic assemblies 5 comprise two fixing bodies, each fixing body comprises a fixing bottom plate 16, four corners at the top of each fixing bottom plate 16 are respectively penetrated and provided with fixing holes, the top ends of the fixing bottom plates 16 are provided with supporting feet 17, the supporting feet 17 are fixedly connected with the arc-shaped outer plates 6 through side blocks 11 which are movably welded, the arc-shaped outer plates 6 are connected with arc-shaped inner plates 8 through elastic pieces 10 mounted on the inner wall surfaces of the arc-shaped outer plates, and the inner wall surfaces of the arc-shaped inner plates 8 are adhered with rubber layers 9.

The elastic piece 10 comprises two limiting blocks A18 and two limiting blocks B20, the two limiting blocks A18 are oppositely arranged and welded on the inner wall surface of the arc-shaped outer plate 6, the two elastic pieces 10 are oppositely arranged and welded on the outer wall surface of the arc-shaped inner plate 8, and elastic balls 19 are bonded between the two limiting blocks A18 and the two limiting blocks B20.

When the measuring tube 1 receives pipeline vibration, vibration can be transferred to the rubber layer 9 firstly, the rubber layer 9 plays a role in elastic buffering of a first layer under the elastic action of the rubber layer 9, and when the vibration is continuously transferred outwards from the arc-shaped inner plate 8 through the rubber layer 9, the elastic ball 19 can be compressed, the elastic buffering of a second layer is played under the elastic action of the elastic ball 19, the transverse weight reduction buffering is played for the vibration sense of the pipeline under the double damping measures, and further the vibration is prevented from being directly transferred to the probe, so that the precision of the flowmeter is avoided.

The stabilizer blade 17 includes the vertical tube 15, the slide hole sliding connection that the vertical tube 15 was offered through its top has slide bar 12, the bottom welding of slide bar 12 has circular dog, the top of slide bar 12 is connected with the bottom welding of side piece 11, the lantern ring 13 has been cup jointed to the upper position department of slide bar 12 outer wall, the outer wall of slide bar 12 and be located between vertical tube 15 and the lantern ring 13, when receiving vertical vibrations, slide bar 12 can compress spring 14 because of vibrations down when, under spring 14's elastic action, play under the elastic buffering of vibrations again, belong to the elastic buffering of third level, under multilayer, multiple elastic protection's effect, effectual shock that receives is absorbed and is eliminated to the flowmeter, guarantee the stable and normal work of flowmeter.

The upper and lower positions of the outer wall surface of the arc-shaped outer plate 6 are welded with connecting lugs 7, the connecting lugs 7 on the two sides are fixed together through bolts, and threaded holes matched with the bolts are formed in the connecting lugs 7 in a penetrating mode.

The flange plate 2 is welded at both ends of the measuring tube 1, a vortex generating body is arranged at the position, close to the air inlet, inside the measuring tube 1, a sensor probe is arranged inside the connecting tube 4, and the sensor probe is positioned inside the measuring tube 1.

The working principle of the utility model is as follows:

when in use, the flow meter is connected with a pipeline through the flange plate 2, so as to finish the installation of the flow meter;

two anti-seismic assemblies 5 are respectively installed on two sides of the measuring tube 1, and the flow is as follows:

the two arc-shaped outer plates 6 are sleeved on the outer wall of the measuring tube 1, the connecting convex blocks 7 on the arc-shaped outer plates 6 on the two sides are aligned, and the connecting convex blocks 7 on the two sides are fixed together through bolts, so that the arc-shaped outer plates 6 on the two sides are fixed together;

and fixing the fixing base plate 16 to the ground;

when the measuring tube 1 is subjected to pipeline vibration, the vibration is firstly transmitted to the rubber layer 9, and the rubber layer 9 plays a first-level elastic buffering role under the self elastic action;

when vibration is continuously transmitted outwards from the arc-shaped inner plate 8 through the rubber layer 9, the elastic ball 19 is compressed, and the elastic buffer of the second layer is realized under the elastic action of the elastic ball 19;

when vertical vibration is received, when the slide bar 12 moves downwards due to the vibration, the sleeve ring 13 compresses the spring 14, and the elastic buffering of the third layer is realized under the elastic action of the spring 14.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. A pipeline type anti-seismic vortex shedding flowmeter is characterized in that: comprising the following steps:

the measuring tube (1) is connected with the gauge outfit (3) through a connecting tube (4);

two antidetonation subassembly (5), two antidetonation subassembly (5) are detachable respectively to be installed in the both sides of survey pipe (1) outer wall, antidetonation subassembly (5) are including two fixed main parts, fixed main part includes PMKD (16), stabilizer blade (17) are installed on the top of PMKD (16), stabilizer blade (17) are through its movable welding's side piece (11) fixedly connected with arc planking (6), arc planking (6) are connected with arc inner panel (8) through its internal face elastic component (10) of installation, and the internal face bonding of arc inner panel (8) has rubber layer (9).

2. A ducted vibration-resistant vortex shedding flowmeter as claimed in claim 1, wherein: the elastic piece (10) comprises two limiting blocks A (18) and two limiting blocks B (20), wherein the two limiting blocks A (18) are oppositely arranged and welded on the inner wall surface of the arc-shaped outer plate (6), the two elastic pieces (10) are oppositely arranged and welded on the outer wall surface of the arc-shaped inner plate (8), and elastic balls (19) are adhered between the two limiting blocks A (18) and the two limiting blocks B (20).

3. A ducted vibration-resistant vortex shedding flowmeter as claimed in claim 1, wherein: the support leg (17) comprises a vertical cylinder (15), the vertical cylinder (15) is connected with a sliding rod (12) through a sliding hole formed in the top of the vertical cylinder in a sliding mode, a lantern ring (13) is sleeved at the upper position of the outer wall of the sliding rod (12), and a spring (14) is sleeved between the vertical cylinder (15) and the lantern ring (13) and positioned on the outer wall of the sliding rod (12).

4. A ducted vibration-resistant vortex shedding flowmeter as claimed in claim 1, wherein: the arc-shaped outer plate is characterized in that connecting lugs (7) are welded at the upper and lower positions of the outer wall surface of the arc-shaped outer plate (6), the connecting lugs (7) are fixed together through bolts, and threaded holes matched with the bolts are formed in the connecting lugs (7) in a penetrating mode.

5. A ducted vibration-resistant vortex shedding flowmeter as claimed in claim 1, wherein: the vortex generating body is installed at the position, close to the air inlet, inside the measuring tube (1), of the measuring tube (1), the sensor probe is installed inside the connecting tube (4), and the sensor probe is located inside the measuring tube (1).