CN216791282U

CN216791282U - Vortex shedding flowmeter based on industrial pipeline medium fluid

Info

Publication number: CN216791282U
Application number: CN202123249743.7U
Authority: CN
Inventors: 陈志强; 孙丽丽
Original assignee: Shanghai Xiangtai Automation Equipment Co ltd
Current assignee: Shanghai Xiangtai Automation Equipment Co ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-06-21
Anticipated expiration: 2031-12-22

Abstract

The utility model belongs to the field of flowmeters, in particular to a vortex shedding flowmeter based on industrial pipeline medium fluid, aiming at the problems that the probe part of the existing vortex shedding flowmeter is easy to be wet, the monitoring precision is influenced, the interference signal generated by the vibration at the installation position of the probe is inconvenient to monitor and the use effect is influenced, the utility model provides the following scheme, which comprises a butt joint pipe, wherein the top of the butt joint pipe is fixedly provided with an installation seat, the installation seat is arranged in a hollow way, the bottom of the installation seat is fixedly provided with the probe, the interior of the probe is provided with an electric heater, and the bottom of the probe penetrates through the top of the butt joint pipe and extends to the interior of the butt joint pipe. The accuracy is improved.

Description

Vortex shedding flowmeter based on industrial pipeline medium fluid

Technical Field

The utility model relates to the technical field of flowmeters, in particular to a vortex shedding flowmeter based on industrial pipeline medium fluid.

Background

The vortex shedding flowmeter is a volumetric flowmeter which is produced according to Karman vortex shedding principle and used for measuring the volume flow, standard condition volume flow or mass flow of gas, steam or liquid. The method is mainly used for measuring the flow of industrial pipeline medium fluid, such as various media such as gas, liquid and steam, and a vortex shedding flowmeter is usually used in the flow monitoring process of industrial pipeline cut-off fluid.

The existing vortex shedding flowmeter has the defects that the probe part is easy to be wet, the monitoring precision is influenced, the interference signal generated by vibration at the mounting position of the probe is inconvenient to monitor, and the using effect is influenced, so that the vortex shedding flowmeter based on the industrial pipeline medium fluid is provided, and the problems are solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects that in the prior art, the probe part of a vortex shedding flowmeter is easy to be wet, the monitoring precision is influenced, an interference signal generated by vibration at the installation position of the probe is inconvenient to monitor, and the use effect is influenced, and provides the vortex shedding flowmeter based on the industrial pipeline medium fluid.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a vortex flowmeter based on industry pipeline medium fluid, includes and manages to the butt joint, the top fixed mounting who manages to the butt joint has the mount pad, and the mount pad sets up for cavity, the bottom fixed mounting of mount pad has the probe, and the inside of probe is equipped with electric heater, and the bottom of probe runs through the top of managing to extend to the inside of managing to the butt joint, fixed mounting has same vortex to take place the board on the top inner wall of managing to the butt joint and the bottom inner wall, the top fixed mounting of mount pad has the installation pipeline, and the right side fixed mounting of just installing the pipeline has instrumentation, the right side fixed mounting of mount pad has the L venturi tube, and the top fixed mounting of L venturi tube has the piezoceramics piece, the bottom of piezoceramics piece closely laminates with the top of managing to, and piezoceramics piece and instrumentation transmission connection.

Preferably, in order to protect the piezoelectric crystal element conveniently, the probe includes the casing, and the top of casing and the bottom fixed mounting of mount pad, the bottom of casing extends to the inside of butt joint pipe, equal fixed mounting has the piece of burying on the left side inner wall of casing and the right side inner wall, and two bury one side fixed mounting that the piece is close to each other has same piezoelectric crystal element.

Preferably, for the convenience of handling the charge signal, the top fixed mounting of installation pipeline has the cylinder, and the cylinder is the cavity setting, fixed mounting has the amplifier on the bottom inner wall of cylinder, and amplifier and piezoelectric crystal component electric connection, the top fixed mounting of cylinder has the secondary instrument, be equipped with total amount display screen and instantaneous display screen on the two chi instruments, amplifier and secondary instrument transmission connection.

Preferably, in order to facilitate displaying of flow information on the secondary instrument, an analog-to-digital converter and a filter are fixedly installed inside the column, the analog-to-digital converter is located right above the filter, the filter is electrically connected with the amplifier, the filter and the analog-to-digital converter are electrically connected with the same shaping circuit, the analog-to-digital converter is electrically connected with the output port circuit, and the output port circuit is electrically connected with the secondary instrument.

Preferably, for the installation operation of the convenient butt joint pipe, the sealed fixed mounting in outside of butt joint pipe has flange, and sealed flange's quantity is provided with two, has all seted up a plurality of mounting holes on two flange, and a plurality of mounting holes that are located on same flange are equidistance annular setting.

Preferably, in order to facilitate the generation of the vortex in the docking pipe, a tapered plate is fixedly mounted on the right side of the vortex generation plate, and the tapered plate and the vortex generation plate are both located on the left side of the probe.

The utility model has the beneficial effects that: the specifications of the butt flange, the piezoelectric crystal element, the eddy current generating plate, the conical plate, the electric heater, the detection instrument, the L-shaped pipe, the piezoelectric ceramic piece, the secondary instrument, the amplifier, the filter, the shaping circuit, the analog-to-digital converter and the output port circuit can be selected according to actual requirements The analog-digital converter and the output port circuit are sent to a secondary instrument, total flow and instantaneous flow are displayed on the secondary instrument, vibration can be generated on a butt joint pipe in the flowing process of an industrial pipeline medium fluid, the vibration can enable a piezoelectric crystal element to generate a charge signal, vibration frequency information can be displayed on a detection instrument, and compared with a conventional vortex street flowmeter based on the industrial pipeline medium fluid, the vortex street flowmeter can accurately monitor the flow of the industrial pipeline medium fluid and can monitor interference signal data generated due to vibration, a probe can be conveniently dried, and the accuracy is improved;

in order to solve the problem that the butt joint pipe is inconvenient to butt joint with the industrial pipeline, the two butt joint flanges are arranged on the outer side of the butt joint pipe, and the plurality of mounting holes are formed in the butt joint flanges, so that the butt joint pipe can be conveniently mounted, and the practicability is high;

in order to solve the problem that the charge signal sent by the piezoelectric crystal element is inconvenient to process, the amplifier arranged in the column body can be used for processing the charge signal generated on the piezoelectric crystal element conveniently.

Drawings

FIG. 1 is a perspective view of a vortex shedding flowmeter based on industrial pipeline media fluid according to the present invention;

FIG. 2 is a schematic structural diagram of a vortex shedding flowmeter based on an industrial pipeline medium fluid according to the present invention;

FIG. 3 is a perspective view of a vortex generating plate structure of a vortex shedding flowmeter based on industrial pipeline medium fluid;

fig. 4 is an enlarged schematic view of a part a of the structure of the vortex shedding flowmeter based on the industrial pipeline medium fluid in the utility model in fig. 2.

In the figure: 1 butt joint pipe, 2 butt joint flange, 3 mounting seats, 4 shells, 5 embedded parts, 6 piezoelectric crystal elements, 7 eddy current generating plates, 8 conical plates, 9 electric heaters, 10 mounting pipelines, 11 detection instruments, 12L-shaped pipes, 13 piezoelectric ceramic plates, 14 cylinders, 15 secondary instruments, 16 total amount display screens, 17 instantaneous display screens, 18 amplifiers, 19 filters, 20 shaping circuits, 21 analog-to-digital converters and 22 output port circuits.

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.

Example one

Referring to fig. 1-4, a vortex shedding flowmeter based on industrial pipeline medium fluid, which comprises a butt joint pipe 1, wherein the butt joint pipe 1 is transversely arranged, a mounting seat 3 is fixedly mounted at the top of the butt joint pipe 1, the mounting seat 3 is arranged in a square shape, the mounting seat 3 is arranged in a hollow shape, a probe is fixedly mounted at the bottom of the mounting seat 3, the specification of the probe can be selected according to the actual application, in order to protect a piezoelectric crystal element 6, the probe comprises a shell 4, the shell 4 is conical, the top of the shell 4 and the bottom of the mounting seat 3 are fixedly mounted, the bottom of the shell 4 extends into the butt joint pipe 1, embedded parts 5 are fixedly mounted on the left inner wall and the right inner wall of the shell 4, the embedded parts 5 are vertically arranged, the same piezoelectric crystal element 6 is fixedly mounted on the side, which two embedded parts 5 are close to each other, the specification of the piezoelectric crystal element 6 can be selected according to the actual application, the outer side of the shell 4 and the inner wall of the top of the butt joint pipe 1 are fixedly installed in a sealing mode, the water leakage situation cannot occur, the electric heater 9 is arranged inside the probe, the specification of the electric heater 9 can be selected according to the actual situation, the electric heater 9 can dry the probe, the probe is dried before being used, the precision can be improved, the bottom of the probe penetrates through the top of the butt joint pipe 1 and extends into the butt joint pipe 1, the same vortex generating plate 7 is fixedly installed on the inner wall of the top and the inner wall of the bottom of the butt joint pipe 1, the vortex generating plate 7 is arranged in a long strip shape, an installation pipeline 10 is fixedly installed on the top of the installation seat 3, the installation channel 10 is vertically placed, a wire can be placed in the installation channel 10, a detection instrument 11 is fixedly installed on the right side of the installation pipeline 10, the detection instrument 11 can display interference signals generated due to vibration, and the specification can be selected according to the actual situation, an L-shaped tube 12 is fixedly arranged on the right side of the mounting seat 3, a lead is also arranged in the L-shaped tube 12, a piezoelectric ceramic piece 13 is fixedly arranged on the top of the L-shaped tube 12, the bottom of the piezoelectric ceramic piece 13 is tightly attached to the top of the butt joint tube 1, the piezoelectric ceramic piece 13 is used for monitoring vibration on the butt joint tube 1, the piezoelectric ceramic piece 13 is in transmission connection with a detection instrument 11, in order to facilitate processing of charge signals, a column 14 is fixedly arranged on the top of the mounting pipeline 10, the size of the column 14 is larger than that of the mounting pipeline 10, the column 14 is in a hollow arrangement, an amplifier 18 is fixedly arranged on the inner wall of the bottom of the column 14, the amplifier 18 is electrically connected with the piezoelectric crystal element 6, the amplifier 18 is used for processing charge signals on the piezoelectric crystal element 6, a secondary instrument 15 is fixedly arranged on the top of the column 14, and a total display screen 16 and an instantaneous display screen 17 are arranged on the two-scale instrument 15, the total amount display screen 16 and the instantaneous display screen 17 can display total amount and instantaneous amount, the amplifier 18 is in transmission connection with the secondary instrument 15, in order to facilitate displaying flow information on the secondary instrument 15, an analog-to-digital converter 21 and a filter 19 are fixedly installed inside the column 14, the analog-to-digital converter 21 is located right above the filter 19, specifications of the analog-to-digital converter 21, the filter 19, the shaping motor 20 and an output port circuit 22 can be selected according to actual use and used for transmitting processed charge signals, the filter 19 is electrically connected with the amplifier, the filter 19 and the analog-to-digital converter 21 are electrically connected with the same shaping circuit 20, the analog-to-digital converter 21 is electrically connected with the output port circuit 22, and the output port circuit 22 is electrically connected with the secondary instrument 15.

Example two

The following further improvements are made on the basis of the first embodiment:

in the utility model, in order to facilitate the installation operation of the butt joint pipe 1, the butt joint flanges 2 are fixedly installed on the outer sides of the butt joint pipe 1 in a sealing manner, the number of the sealed butt joint flanges 2 is two, the butt joint flanges 2 are used for butt joint of industrial pipelines, a plurality of installation holes are formed in the two butt joint flanges 2, the installation holes in the same butt joint flange 2 are arranged in an equidistant annular manner, in order to facilitate the generation of vortexes in the butt joint pipe 1, a tapered plate 8 is fixedly installed on the right side of a vortex generation plate 7, the left end of the tapered plate 8 is large in size, the right end of the tapered plate 8 is small in size, and the tapered plate 8 and the vortex generation plate 7 are both located on the left side of a probe.

In the utility model, when in use, the butt joint pipe 1 is butted with an industrial pipeline by using the butt joint flange 2, before use, the electric heater 9 is started to dry the probe, the accuracy can be improved, the medium fluid in the industrial pipeline flows from left to right, the vortex can be generated in the butt joint pipe 1 by the arranged vortex generating plate 7 and the conical plate 8, the alternating force vertical to the fluid direction can be generated in the butt joint pipe 1, the piezoelectric crystal element 6 on the probe can generate a charge signal with the same frequency as the vortex separation frequency, the amplifier 18 converts the charge signal and sends the processed charge signal to the secondary instrument 15 by the filter 19, the shaping circuit 20, the analog-to-digital converter 21 and the output port circuit 22, the total flow and the instantaneous flow are displayed on the secondary instrument 15, the vibration can be generated on the butt joint pipe 1 in the flowing process of the medium fluid in the industrial pipeline, and the vibration can generate a charge signal on the piezoelectric crystal element 6, vibration frequency information can go up to show on the instrumentation 11, compare the vortex street flowmeter based on industrial pipeline medium fluid of conventional, can also monitor because of the interference signal data that vibrations produced when accurate monitoring industrial pipeline medium fluid flow, can be convenient for dry the probe, improved the accuracy.

In the description of the present application, it should be noted that, unless otherwise specifically stated or limited, the terms "disposed," "mounted," "connected" and "connected" should be construed broadly, and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediary, and a communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a vortex flowmeter based on industry pipeline medium fluid, includes to the joint pipe (1), the top fixed mounting of joint pipe (1) has mount pad (3), and mount pad (3) are the cavity setting, its characterized in that, the bottom fixed mounting of mount pad (3) has the probe, and the inside of probe is equipped with electric heater (9), and the bottom of probe runs through the top of joint pipe (1) and extends to the inside of joint pipe (1), fixed mounting has same vortex generation board (7) on the top inner wall of joint pipe (1) and the bottom inner wall, the top fixed mounting of mount pad (3) has installation pipeline (10), and the right side fixed mounting of installation pipeline (10) has detecting instrument (11), the right side fixed mounting of mount pad (3) has L venturi tube (12), and the top fixed mounting of L venturi tube (12) has piezoceramics piece (13), the bottom of the piezoelectric ceramic piece (13) is tightly attached to the top of the butt joint pipe (1), and the piezoelectric ceramic piece (13) is in transmission connection with the detection instrument (11).

2. The vortex shedding flowmeter based on industrial pipeline medium fluid is characterized in that the probe comprises a shell (4), the top of the shell (4) and the bottom of the mounting seat (3) are fixedly mounted, the bottom of the shell (4) extends to the inside of the butt joint pipe (1), embedded parts (5) are fixedly mounted on the inner walls of the left side and the right side of the shell (4), and the same piezoelectric crystal element (6) is fixedly mounted on the side, close to each other, of the two embedded parts (5).

3. The vortex shedding flowmeter based on the industrial pipeline medium fluid is characterized in that a cylinder (14) is fixedly mounted at the top of the installation pipeline (10), the cylinder (14) is arranged in a hollow mode, an amplifier (18) is fixedly mounted on the inner wall of the bottom of the cylinder (14), the amplifier (18) is electrically connected with the piezoelectric crystal element (6), a secondary instrument (15) is fixedly mounted at the top of the cylinder (14), a total amount display screen (16) and an instantaneous display screen (17) are arranged on the secondary instrument (15), and the amplifier (18) is in transmission connection with the secondary instrument (15).

4. The vortex shedding flowmeter based on industrial pipe medium fluid according to claim 3, wherein an analog-to-digital converter (21) and a filter (19) are fixedly installed inside the cylinder (14), the analog-to-digital converter (21) is located right above the filter (19), the filter (19) is electrically connected with the amplifier, the filter (19) and the analog-to-digital converter (21) are electrically connected with the same shaping circuit (20), the analog-to-digital converter (21) is electrically connected with an output port circuit (22), and the output port circuit (22) is electrically connected with the secondary instrument (15).

5. The vortex shedding flowmeter based on the industrial pipeline medium fluid as claimed in claim 1, wherein two butt flanges (2) are fixedly mounted on the outer side of the butt joint pipe (1) in a sealing manner, a plurality of mounting holes are formed in each of the two butt flanges (2), and the mounting holes on the same butt flange (2) are annularly arranged at equal intervals.

6. The vortex shedding flowmeter based on industrial pipeline medium fluid as claimed in claim 1, wherein the right side of the vortex generating plate (7) is fixedly provided with a conical plate (8), and the conical plate (8) and the vortex generating plate (7) are both positioned at the left side of the probe.