CN215984697U

CN215984697U - Vortex shedding flowmeter with anti-vibration interference function

Info

Publication number: CN215984697U
Application number: CN202122271151.9U
Authority: CN
Inventors: 王华章
Original assignee: Kaifeng Hongda Automation Instrument Co ltd
Current assignee: Kaifeng Hongda Automation Instrument Co ltd
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2022-03-08
Anticipated expiration: 2031-09-18

Abstract

The utility model discloses an anti-vibration interference vortex shedding flowmeter, which relates to the technical field of flowmeters and comprises a flowmeter body, wherein two ends of the flowmeter body are provided with two pipelines fixedly connected with flange plates, and the exterior of the flowmeter body is provided with an installation mechanism convenient for connecting the flowmeter body and the pipelines. It is rotatory round the flowmeter body through the drum, rubber seal can seal the junction of drum and flowmeter body, lead to the sloping groove of groove and the cylindrical spacing down in Z shape, can make the rotatory limit in drum limit remove towards fixed connection's ring flange on the pipeline, thereby make the drum take rubber seal to support fixed connection's ring flange on the tight pipeline, and inside the flange hole through inserting fixed connection's ring flange on the pipeline with L shape pole one, it is spacing relatively to drum and ring flange, avoid drum rerotation, so accomplish the installation of flowmeter body promptly, need not to adopt bolted connection, also need not the spanner, and the operation is simple, and the installation is convenient for.

Description

Vortex shedding flowmeter with anti-vibration interference function

Technical Field

The utility model relates to the technical field of flowmeters, in particular to an anti-vibration interference vortex shedding flowmeter.

Background

The vortex street flowmeter is researched and produced according to the Karman vortex street principle, and is mainly used for measuring the flow of industrial pipeline medium fluid, such as various media of gas, liquid, steam and the like. The device has the characteristics of small pressure loss, wide measuring 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, and has no movable mechanical parts, so the device has high reliability and small maintenance amount.

At present, anti-vibration interference vortex street flowmeter is mostly through flange mounting, needs to assemble multiunit bolt, requires that the screw thread of bolt will be complete, can not have the damage, and the gomphosis will be natural, and the junction of flowmeter and pipeline is narrow and small for the spanner rotates the radian little, and the use of the spanner of not being convenient for is operated comparatively loaded down with trivial details, the installation of not being convenient for. Therefore, the vortex shedding flowmeter capable of preventing vibration interference solves the problems.

SUMMERY OF THE UTILITY MODEL

One) technical problem to be solved

The utility model aims to make up the defects of the prior art and provides an anti-vibration interference vortex shedding flowmeter.

II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an anti-seismic disturbance vortex shedding flowmeter, includes the flowmeter body, the both ends of flowmeter body are equipped with the pipeline of two fixedly connected with ring flanges, the outside of flowmeter body is equipped with the installation mechanism of being convenient for connect flowmeter body and pipeline, installation mechanism includes two symmetrical drums, two the inner wall of drum respectively with the both ends looks adaptation of flowmeter body surface, and the both ends of flowmeter body run through two drums and with the inner wall sliding connection of drum, the equal fixedly connected with cylinder in both ends of flowmeter body surface, two the Z shape logical groove, two have all been seted up to the surface of drum the cylinder leads to the groove one-to-one with two Z shapes, and cylinder sliding connection leads to the inside in groove in Z shape.

Further, installation mechanism still includes two symmetrical rubber seal, two rubber seal fixes the cover respectively and establishes the both ends at the flowmeter body, and rubber seal's surface contacts with the inner wall of drum, two the one end that the drum kept away from each other all pegs graft and has rubber seal, and rubber seal keeps away from a side of drum and contacts with the ring flange of pipeline.

Further, installation mechanism still includes two solid fixed rings, two solid fixed ring difference fixed connection is at the surface of drum, every gu fixed ring's the equal sliding connection in inside has L shape pole one, two the one end that L shape pole one was kept away from each other all runs through the flange hole of installing in the ring flange of pipeline and with the flange hole looks adaptation of ring flange, every the outside of L shape pole one all is overlapped and is equipped with extension spring one, and the both ends of extension spring one fixed connection respectively at solid fixed ring and the surface of L shape pole one.

Further, the outside of flowmeter body is equipped with the positioning mechanism who is used for fixing a position flowmeter body and pipeline, positioning mechanism includes the arc ring of fixed connection in flowmeter body surface, the inside fixed the inlaying of arc ring has two sleeves, two the sleeve is located the place ahead and the rear of flowmeter body respectively, every telescopic inside equal sliding connection has two symmetrical L shape pole two, and L shape pole two keep away from telescopic one end and run through two flange holes of installing in the ring flange of pipeline respectively and with the flange hole looks adaptation of ring flange, every telescopic inside all is equipped with extension spring two, and the both ends of extension spring two respectively with be located two fixed connection of two L shape poles inside of same sleeve.

Thirdly), the beneficial effects are as follows:

compared with the prior art, the vortex shedding flowmeter with the anti-vibration interference has the following beneficial effects:

the utility model can seal the joint of the cylinder and the flowmeter body by the matching design of the cylinder, the Z-shaped through groove, the fixing ring, the L-shaped rod I, the tension spring I, the rubber sealing ring and the rubber sealing ring, the cylinder rotates around the flowmeter body by the rotation of the cylinder, the rubber sealing ring can move towards the flange fixedly connected on the pipeline while rotating under the limit of the bevel edge groove of the Z-shaped through groove and the cylinder, so that the cylinder drives the rubber sealing ring to tightly abut against the flange fixedly connected on the pipeline, the rubber sealing ring seals the joint of the flange and the cylinder, the L-shaped rod I is inserted into the flange hole of the flange fixedly connected on the pipeline to relatively limit the cylinder and the flange, the tension spring I36 can enable the L-shaped rod I35 to be always inserted into the flange hole without external force, and the cylinder is prevented from rotating again after the rubber sealing ring abuts against the flange fixedly connected on the pipeline, so accomplish the installation of flowmeter body promptly, need not to adopt bolted connection, also need not the spanner, easy operation, the installation of being convenient for.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a cross-sectional schematic view of an installed front view of the present invention;

FIG. 3 is a cross-sectional schematic view of a front elevational view of the present invention prior to installation;

FIG. 4 is a sectional view of the sleeve and the second L-shaped rod of the present invention;

FIG. 5 is a schematic view of the arcuate ring and sleeve connection of the present invention.

In the figure: 1. a flowmeter body; 2. a pipeline; 3. an installation mechanism; 31. a cylinder; 32. a cylinder; 33. a Z-shaped through groove; 34. a fixing ring; 35. an L-shaped rod I; 36. a first tension spring; 37. a rubber seal ring; 38. a rubber seal ring; 4. a positioning mechanism; 41. an arc-shaped ring; 42. a sleeve; 43. a second L-shaped rod; 44. and a second tension spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 5, the present invention provides a technical solution: an anti-vibration interference vortex shedding flowmeter comprises a flowmeter body 1, two ends of the flowmeter body 1 are provided with two pipelines 2 fixedly connected with flange plates, the exterior of the flowmeter body 1 is provided with a mounting mechanism 3 convenient for connecting the flowmeter body 1 and the pipelines 2, the mounting mechanism 3 comprises two symmetrical cylinders 31, the inner walls of the two cylinders 31 are respectively matched with two ends of the outer surface of the flowmeter body 1, two ends of the flowmeter body 1 penetrate through the two cylinders 31 and are in sliding connection with the inner walls of the cylinders 31, two ends of the outer surface of the flowmeter body 1 are fixedly connected with cylinders 32, the outer surfaces of the two cylinders 31 are respectively provided with a Z-shaped through groove 33, the Z-shaped through groove 33 is formed by mutually communicating two linear grooves and an inclined line groove, the two cylinders 32 are in one-to-one correspondence with the two Z-shaped through grooves 33, the cylinders 32 are in sliding connection with the interior of the Z-shaped through grooves 33, and the cylinders 32 and the Z-shaped through grooves 33 are arranged, the cylinder 31 can move horizontally under the guidance of the cylinder 32 and the Z-shaped through groove 33 while rotating.

Installation mechanism 3 still includes two symmetrical rubber seal 37, two rubber seal 37 fix the cover respectively and establish the both ends at flowmeter body 1, and rubber seal 37's surface contacts with the inner wall of drum 31, rubber seal 37's setting can seal flowmeter body 1 and drum 31's junction, the one end that two drums 31 kept away from each other all pegs graft and have rubber seal 38, and one side that rubber seal 38 kept away from drum 31 contacts with the ring flange of pipeline 2, rubber seal 38's setting, can seal flowmeter body 1's both ends and the junction of pipeline 2 fixed connection's ring flange.

The mounting mechanism 3 further comprises two fixing rings 34, the two fixing rings 34 are respectively and fixedly connected to the outer surface of the cylinder 31, the inside of each fixing ring 34 is connected with a first L-shaped rod 35 in a sliding manner, the mutually-far ends of the two first L-shaped rods 35 penetrate through flange holes of a flange plate of the pipeline 2 and are matched with the flange holes of the flange plate, the outside of each first L-shaped rod 35 is sleeved with a first tension spring 36, two ends of the first tension spring 36 are respectively and fixedly connected to the outer surfaces of the fixing rings 34 and the first L-shaped rods 35, the joint of the cylinder 31 and the flowmeter body 1 can be sealed by the rubber sealing ring 37 through the matching design of the cylinder 31, the cylinder 32, the Z-shaped through groove 33, the fixing rings 34, the first L-shaped rods 35, the first tension springs 36, the rubber sealing ring 37 and the rubber sealing ring 38, under the limit of the oblique side groove of the Z-shaped through groove 33 and the cylinder 32, can make drum 31 limit rotatory limit remove towards fixed connection's on the pipeline 2 ring flange on, thereby make drum 31 take rubber seal ring 38 to support tight pipeline 2 go up fixed connection's ring flange, make rubber seal ring 38 seal up ring flange and drum 31 junction, and through inside the flange hole with L shape pole 35 insert pipeline 2 go up fixed connection's ring flange, it is spacing relatively to drum 31 and ring flange, extension spring 36 can make L shape pole 35 insert inside the flange hole all the time under the circumstances that does not receive external force, avoid drum 31 to rotate once more after supporting tight pipeline 2 last fixed connection's ring flange through rubber seal ring 38, so accomplish the installation of flowmeter body 1 promptly, need not to adopt bolted connection, also need not the spanner, and the operation is simple, and the installation is convenient for.

The outer part of the flowmeter body 1 is provided with a positioning mechanism 4 for positioning the flowmeter body 1 and the pipeline 2, the positioning mechanism 4 comprises an arc ring 41 fixedly connected to the outer surface of the flowmeter body 1, two sleeves 42 are fixedly embedded in the arc ring 41, the two sleeves 42 are respectively positioned in front of and behind the flowmeter body 1, two symmetrical L-shaped rods 43 are respectively connected in each sleeve 42 in a sliding manner, one ends of the L-shaped rods 43, far away from the sleeves 42, respectively penetrate through two flange holes arranged on a flange plate of the pipeline 2 and are matched with the flange holes of the flange plate, a tension spring two 44 is arranged in each sleeve 42, two ends of the tension spring two 44 are respectively and fixedly connected with the two L-shaped rods 43 positioned in the same sleeve 42, through the matching design of the arc ring 41, the sleeves 42, the L-shaped rods 43 and the tension spring two tension springs 44, one ends of the L-shaped rods 43, far away from the sleeves 42, penetrate into the flange holes of the flange plate fixedly connected on the pipeline 2, therefore, the flowmeter body 1 is positioned, the flowmeter body 1 and the pipeline 2 are coaxial, and the second tension spring 44 can enable the second L-shaped rod 43 to be inserted into the flange hole of the flange plate all the time under the condition of not receiving external force.

The working principle is as follows: during installation, the two pipelines 2 are coaxially fixed, a gap for installing the flowmeter body 1 is reserved, the flowmeter body 1 is placed between the two pipelines 2, the L-shaped rod II 43 in the sleeve 42 penetrates into a flange hole of a flange fixedly connected to the pipelines 2, the flowmeter body 1 and the two pipelines 2 are coaxially limited, the tension spring II 44 can enable the L-shaped rod II 43 to be always inserted into the flange hole of the flange without external force, then one cylinder 31 is rotated, the cylinder 31 enters an inclined wire groove from a linear groove of the Z-shaped through groove 33, the cylinder 31 can move towards the pipelines 2 under the limit of the cylinder 32 and the Z-shaped through groove 33, the rubber sealing ring 37 can play a dynamic sealing effect on the connection part of the inner wall of the cylinder 31 and the outer surface of the flowmeter body 1, and the connection part of the inner wall of the cylinder 31 and the outer surface of the flowmeter body 1 is always sealed, until the cylinder 32 enters another straight groove again from the diagonal groove of the Z-shaped through groove 33, that is, the cylinder 31 with the rubber sealing ring 38 gradually contacts the flange fixedly connected to the pipeline 2, and similarly, the second cylinder 31 is rotated to move the second cylinder 31 toward the other pipeline 2, that is, the second cylinder 31 gradually contacts and presses the flange fixedly connected to the other pipeline 2, under the reaction force, the original cylinder 31 also presses the flange of the pipeline 2, when the cylinder 32 of the second cylinder 31 enters the straight groove from the diagonal groove of the Z-shaped through groove 33, the two cylinders 31 with the rubber sealing ring 38 also press the fixed pipeline 2 and the flange fixedly connected to the pipeline 2, so that the rubber sealing ring 38 seals the joint between the cylinder 31 and the flange, and then the L-shaped rod 35 is inserted into the flange hole of the flange fixedly connected to the pipeline 2 to prevent the cylinder 31 from rotating, the first tension spring 36 enables the first L-shaped rod 35 to be inserted into the flange hole all the time without external force, and therefore the installation of the flowmeter body 1 is completed.

Claims

1. The utility model provides an anti-vibration interference vortex shedding flowmeter, includes flowmeter body (1), its characterized in that: two ends of the flowmeter body (1) are provided with two pipelines (2) fixedly connected with flange plates, an installation mechanism (3) which is convenient for connecting the flowmeter body (1) and the pipeline (2) is arranged outside the flowmeter body (1), the mounting mechanism (3) comprises two symmetrical cylinders (31), the inner walls of the two cylinders (31) are respectively matched with the two ends of the outer surface of the flowmeter body (1), and two ends of the flowmeter body (1) penetrate through the two cylinders (31) and are connected with the inner walls of the cylinders (31) in a sliding way, flowmeter body (1) surface both ends equal fixedly connected with cylinder (32), two Z shape logical groove (33), two have all been seted up to the surface of drum (31) cylinder (32) lead to groove (33) one-to-one with two Z shapes, and cylinder (32) sliding connection leads to the inside of groove (33) in Z shape.

2. The vortex shedding flowmeter of claim 1, wherein: installation mechanism (3) still includes two symmetrical rubber seal (37), two rubber seal (37) are fixed the cover respectively and are established at the both ends of flowmeter body (1), and the surface of rubber seal (37) contacts with the inner wall of drum (31), two the one end that drum (31) kept away from each other all is pegged graft and is had rubber seal ring (38), and rubber seal ring (38) keep away from a side of drum (31) and the ring flange of pipeline (2) and contact.

3. The vortex shedding flowmeter of claim 1, wherein: installation mechanism (3) still includes two solid fixed rings (34), two solid fixed ring (34) fixed connection respectively is at the surface of drum (31), every the equal sliding connection in inside of solid fixed ring (34) has L shape pole (35), two the one end that L shape pole (35) kept away from each other all runs through the flange hole of the ring flange of installing in pipeline (2) and with the flange hole looks adaptation of ring flange, every the outside of L shape pole (35) all overlaps and is equipped with extension spring (36), and the surface of fixed connection at solid fixed ring (34) and L shape pole (35) respectively at the both ends of extension spring (36).

4. The vortex shedding flowmeter of claim 1, wherein: a positioning mechanism (4) for positioning the flowmeter body (1) and the pipeline (2) is arranged outside the flowmeter body (1), the positioning mechanism (4) comprises an arc-shaped ring (41) fixedly connected to the outer surface of the flowmeter body (1), two sleeves (42) are fixedly embedded in the arc-shaped ring (41), the two sleeves (42) are respectively positioned in front of and behind the flowmeter body (1), two symmetrical L-shaped rods (43) are connected in each sleeve (42) in a sliding manner, one end of the L-shaped rod II (43) far away from the sleeve (42) respectively penetrates through the flange holes of the flange plates arranged on the pipeline (2) and is matched with the flange holes of the flange plates, a tension spring II (44) is arranged inside each sleeve (42), and two ends of the second tension spring (44) are respectively fixedly connected with the second L-shaped rods (43) positioned in the same sleeve (42).