CN211651699U

CN211651699U - Vortex street flowmeter

Info

Publication number: CN211651699U
Application number: CN201922503701.8U
Authority: CN
Inventors: 沈勇刚
Original assignee: Jiangsu Tianchuan Automation Instrument Co ltd
Current assignee: Jiangsu Tianchuan Automation Instrument Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-10-09
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a vortex shedding flowmeter relates to the electronic equipment field, and this vortex shedding flowmeter is including the flowmeter body that is equipped with signal input line and signal output and power cord, and the flowmeter body passes through communicating pipe and surveys buret intercommunication, surveys buret both ends and all is equipped with the ring flange, and communicating pipe and the intercommunication department of surveying buret install vortex generator, surveys buret and is equipped with the condenser pipe, installs the three-way pipe on the condenser pipe, installs the probe in the three-way pipe, and the probe passes through the signal input line connection of data line and flowmeter body. This vortex flowmeter installs the probe in the tee bend intraductal with condenser pipe connection to directly be connected through the signal input line of data line and flowmeter body, let the probe keep away from vortex generator, effectively avoid the trouble.

Description

Vortex street flowmeter

Technical Field

The utility model relates to an electronic equipment field relates to a vortex flowmeter particularly.

Background

The vortex shedding flowmeter is a volume flowmeter which is produced according to the Karman vortex shedding principle and is used for measuring the volume flow, the standard condition volume flow or the standard condition mass flow of gas, steam or liquid, and is mainly used for measuring the flow of industrial pipeline medium fluid, such as various media, such as gas, liquid, steam and the like. The vortex shedding flowmeter is characterized by small pressure loss, large measuring range and high precision, and is hardly influenced by parameters such as fluid density, pressure, temperature, viscosity and the like when measuring the working condition volume flow. No movable mechanical parts are needed, so the reliability is high and the maintenance amount is small. The instrument parameters can be stable for a long time. The vortex flowmeter adopts a piezoelectric stress sensor, has high reliability and can work within the working temperature range of-20 ℃ to +250 ℃. The existing vortex shedding flowmeter is designed more traditionally, the probe inside the vortex shedding flowmeter is often arranged at the joint of the measuring pipe and the communicating pipe, and the structure leads the probe to be closer to the vortex generator, thus easily causing faults and leading the measuring precision to be reduced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides a vortex street flowmeter, with the probe mounting in the tee bend pipe of being connected with the condenser pipe to direct signal input line through data line and flowmeter body is connected, lets the probe keep away from vortex generator, effectively avoids the trouble.

In order to achieve the above object, the present invention provides the following technical solutions:

this vortex shedding flowmeter is including the flowmeter body that is equipped with signal input line and signal output and power cord, and the flowmeter body passes through communicating pipe and surveys the perpendicular intercommunication of buret, surveys buret both ends and all is equipped with the ring flange perpendicularly, and communicating pipe is installed with vortex generator with the intercommunication department of surveying buret, surveys the buret and goes up to be equipped with annular condenser pipe perpendicularly, installs the three-way pipe on the condenser pipe, installs the probe in the three-way pipe, and the probe passes through the signal input line connection of data line and flowmeter body.

As the further optimization of the technical scheme, the flowmeter body is an existing common vortex shedding flowmeter, and a liquid crystal display screen is installed on the flowmeter body.

As a further optimization of the technical scheme, the measuring tube and the flange plate are both made of stainless steel and are connected through welding.

As a further optimization of the technical scheme, the communicating pipe and the condensing pipe are both made of stainless steel and are connected with the measuring pipe through welding.

As a further optimization of the technical scheme, the three-way pipe is made of stainless steel and is connected with the condensing pipe through threads, and a sealing end cover is arranged at a port of the three-way pipe, which extends out of the data line.

The beneficial effect of adopting above technical scheme is: when the vortex street flowmeter is installed, the flange plate can be connected with a measured pipeline through the bolt and the nut, and the measuring pipe is connected into the measured pipeline. The flowmeter body measures the volume flow of gas, steam or liquid in the measuring pipe and the volume flow or mass flow of standard conditions according to the Karman vortex street principle. This vortex flowmeter installs the probe in the tee bend intraductal with condenser pipe connection to directly be connected through the signal input line of data line and flowmeter body, let the probe keep away from vortex generator, effectively avoid the trouble.

Drawings

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

FIG. 1 is a front view of the vortex shedding flowmeter of the present invention;

fig. 2 is a left side view of the vortex shedding flowmeter of the present invention.

Wherein, 1-flowmeter body, 2-measuring tube, 3-flange plate, 4-communicating tube, 5-condenser tube, 6-three-way tube, 7-data line, 8-signal input line, 9-signal output and power line.

Detailed Description

The preferred embodiment of the vortex shedding flowmeter of the present invention will be described in detail below with reference to the accompanying drawings.

Fig. 1 and fig. 2 show a specific embodiment of the vortex shedding flowmeter of the present invention:

combine fig. 1 and fig. 2, this vortex flowmeter is including the flowmeter body 1 that is equipped with signal input line 8 and signal output and power cord 9, flowmeter body 1 is through communicating pipe 4 and surveying the perpendicular intercommunication of buret 2, survey 2 both ends of buret and all be equipped with ring flange 3 perpendicularly, communicating pipe 4 is installed with surveying the intercommunication department of buret 2 and is had vortex generator, survey and be equipped with annular condenser pipe 5 perpendicularly on the buret 2, install three-way pipe 6 on the condenser pipe 5, install the probe in the three-way pipe 6, the probe passes through data line 7 and is connected with flowmeter body 1's signal input line 8.

Flowmeter body 1 is current ordinary vortex street flowmeter, installs liquid crystal display on flowmeter body 1. The measuring pipe 2 and the flange plate 3 are both made of stainless steel, are firm and durable, have good corrosion resistance, and are connected by welding. Communicating pipe 4 and condenser pipe 5 are made by the stainless steel, and are sturdy and durable, and corrosion resisting property is good, and communicating pipe 4 and condenser pipe 5 all are connected with surveying buret 2 through the welding. The three-way pipe 6 is made of stainless steel, is firm and durable, and has good corrosion resistance, the three-way pipe 6 is connected with the condensation pipe 5 through threads, and a sealing end cover is arranged at the port of the three-way pipe 6 extending out of the data line 7.

When the vortex street flowmeter is installed, the flange plate 3 can be connected with a measured pipeline through bolts and nuts, and the measuring pipe 2 is connected into the measured pipeline. The flowmeter body 1 measures the volume flow of gas, steam or liquid in the measuring pipe, and the volume flow or mass flow of standard conditions according to the Karman vortex street principle. This vortex street flowmeter installs the probe in the three-way pipe 6 of being connected with condenser pipe 5 to directly be connected with flowmeter body 1's signal input line 8 through data line 7, let the probe keep away from vortex generator, effectively avoid the trouble.

The above is only the preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many variations and modifications can be made without departing from the inventive concept, and these all fall into the protection scope of the present invention.

Claims

1. A vortex shedding flowmeter is characterized in that: vortex flowmeter is including flowmeter body (1) that is equipped with signal input line (8) and signal output and power cord (9), flowmeter body (1) is through communicating pipe (4) and survey buret (2) perpendicular intercommunication, survey buret (2) both ends and all be equipped with ring flange (3) perpendicularly, communicating pipe (4) and the intercommunication department of surveying buret (2) install vortex generator, survey and be equipped with annular condenser pipe (5) perpendicularly on buret (2), install three-way pipe (6) on condenser pipe (5), install the probe in three-way pipe (6), the probe passes through data line (7) and is connected with signal input line (8) of flowmeter body (1).

2. The vortex shedding flowmeter of claim 1, wherein: the flowmeter body (1) is an existing common vortex street flowmeter, and a liquid crystal display screen is installed on the flowmeter body (1).

3. The vortex shedding flowmeter of claim 1, wherein: the measuring pipe (2) and the flange plate (3) are both made of stainless steel, and the measuring pipe (2) and the flange plate (3) are both connected through welding.

4. The vortex shedding flowmeter of claim 1, wherein: communicating pipe (4) and condenser pipe (5) are all made by stainless steel, and communicating pipe (4) and condenser pipe (5) are all connected with surveying buret (2) through the welding.

5. The vortex shedding flowmeter of claim 1, wherein: the three-way pipe (6) is made of stainless steel, the three-way pipe (6) is connected with the condensing pipe (5) through threads, and a sealing end cover is arranged at the port of the three-way pipe (6) extending out of the data line (7).