CN211373721U

CN211373721U - Vortex precession flowmeter

Info

Publication number: CN211373721U
Application number: CN201922503702.2U
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: 2020-08-28
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a precession vortex flowmeter relates to the electronic equipment field, and this precession vortex flowmeter is including the flowmeter body that is equipped with signal input part and signal output and power end, and flowmeter body intercommunication has communicating pipe, is furnished with the screwed pipe communicating pipe, installs the relief valve door on the screwed pipe, and screwed pipe tip intercommunication has survey buret, surveys buret both ends and all is equipped with the ring flange, surveys intraduct internally mounted and has vortex generator. The vortex precession flowmeter is provided with an air release valve at the connection part of the installation part of the sensor and the communicating pipe of the converter, and can release air periodically to eliminate air resistance in the communicating pipe and the threaded pipe.

Description

Vortex precession flowmeter

Technical Field

The utility model relates to an electronic equipment field, concretely relates to precession vortex flowmeter.

Background

The precession vortex flowmeter adopts advanced micro-processing technology, has the advantages of strong function, wide flow range, simple operation and maintenance, convenient installation and use and the like, and has main technical indexes reaching the advanced level of foreign similar products. The conventional precession vortex flowmeter is designed more traditionally, the installation part of a sensor of the precession vortex flowmeter and the connection part of a communicating pipe of a converter are often designed to be simpler, the sensor is only connected through a flange plate, and a valve for air discharge is not installed, so that the precession vortex flowmeter is easy to cause air resistance phenomenon after long-time work, and the measurement precision is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides a precession vortex flowmeter, and the position design has the relief valve at the installation position of sensor and the communicating pipe of converter is connected, can regularly deflate and eliminate the air lock in communicating pipe and the screwed pipe.

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

this precession vortex flowmeter is including the flowmeter body that is equipped with signal input part and signal output and power end, flowmeter body intercommunication has pipy communicating pipe, protruding screw thread has been attacked to communicating pipe tip outer wall, communicating pipe tip is furnished with mutual screw-thread fit's pipe shape screwed pipe, install the relief valve on the screwed pipe, install flow sensor in the screwed pipe, flow sensor passes communicating pipe through the data line and this body coupling of flowmeter, the perpendicular intercommunication of screwed pipe tip has the tubulose survey buret of circle, survey buret both ends and all be equipped with the ring flange perpendicularly, survey the intraductal vortex generator that installs of buret.

As a further optimization of the technical scheme, the flowmeter body is an existing common precession vortex flowmeter.

As a further optimization of the technical scheme, the communicating pipe is made of stainless steel, and the communicating pipe and the shell of the flowmeter body are of an integral structure.

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 threaded pipe and the air release valve are both made of stainless steel, and the threaded pipe is connected with the measuring pipe through welding.

The beneficial effect of adopting above technical scheme is: when the precession vortex flowmeter is installed, the flange plate can be connected with the flange plate of the measured pipeline in a sealing way through a bolt and a nut, and the measuring pipe is communicated with the measured pipeline. When fluid enters the measuring pipe from the measured pipeline, the fluid is forced to rotate around the generating body shaft violently through the action of the vortex generator to form a vortex. When the fluid enters the diffusion section, the vortex flow starts to rotate for the second time under the action of backflow, and a gyro type vortex precession phenomenon is formed. The precession frequency is proportional to the flow rate and is not influenced by the physical properties and density of the fluid. The flow rate is known by measuring the secondary rotational precession frequency of the fluid by the detection element. And the air valve needs to be opened at intervals to release the gas in the threaded pipe, so that the air resistance in the communicating pipe and the threaded pipe is eliminated, and the measurement precision is guaranteed. The vortex precession flowmeter is provided with an air release valve at the connection part of the installation part of the sensor and the communicating pipe of the converter, and can release air periodically to eliminate air resistance in the communicating pipe and the threaded pipe.

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 precession flow meter of the present invention;

figure 2 is a left side view of the precession vortex flowmeter of the present invention.

Wherein, 1-flowmeter body, 2-measure tube, 3-flange plate, 4-communicating pipe, 5-vortex generator, 6-screwed pipe, 7-signal input end, 8-signal output and power end, 9-relief valve.

Detailed Description

The preferred embodiments of the vortex precession flowmeter of the present invention will be described with reference to the accompanying drawings.

Fig. 1 and 2 show an embodiment of the vortex precession flowmeter of the present invention:

combine fig. 1 and fig. 2, this precession vortex flowmeter is including the flowmeter body 1 that is equipped with signal input part 7 and signal output and power end 8, flowmeter body 1 intercommunication has

pipy communicating pipe

4, 4 tip outer walls of communicating pipe are attacked the convex screw, 4 tip of communicating pipe are furnished with mutual screw-thread fit's pipe form screwed pipe 6, install relief valve 9 on the screwed pipe 6, install flow sensor in the screwed pipe 6, flow sensor passes communicating pipe 4 through the data line and is connected with

flowmeter body

1, 6 tip vertical intercommunication of screwed pipe have the pipy survey buret 2 of circle, 2 both ends of surveying buret all are equipped with the ring flange 3 perpendicularly, survey buret 2 internally mounted has vortex generator 5.

The flowmeter body 1 is an existing ordinary precession vortex flowmeter. The communicating pipe 4 is made of stainless steel, is firm and durable, has good corrosion resistance, and is of an integral structure with the shell of the 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. The screwed pipe 6 and the air release valve 9 are both made of stainless steel, and are firm and durable, the corrosion resistance is good, and the screwed pipe 6 is connected with the measuring pipe 2 through welding.

When the precession vortex flowmeter is installed, the flange 3 can be hermetically connected with the flange of the measured pipeline through bolts and nuts, and the measuring pipe 2 is communicated with the measured pipeline. When fluid enters the measuring tube 2 from the measured pipeline, the fluid is forced to rotate violently around the body axis of the generator to form a vortex through the action of the vortex generator 5. When the fluid enters the diffusion section, the vortex flow starts to rotate for the second time under the action of backflow, and a gyro type vortex precession phenomenon is formed. The precession frequency is proportional to the flow rate and is not influenced by the physical properties and density of the fluid. The flow rate is known by measuring the secondary rotational precession frequency of the fluid by the detection element. And the air valve 9 needs to be opened at intervals to discharge the gas in the threaded pipe 6, eliminate the air resistance in the communicating pipe 4 and the threaded pipe 6 and ensure the measurement accuracy. The vortex precession flowmeter is provided with an air release valve 9 at the connecting part of the installation part of the sensor and the communicating pipe 4 of the converter, and can release air periodically to eliminate air resistance in the communicating pipe 4 and the threaded pipe 6.

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 precession vortex flowmeter comprising: precession vortex flowmeter is including flowmeter body (1) that is equipped with signal input part (7) and signal output and power end (8), flowmeter body (1) intercommunication has pipy communicating pipe (4), convex screw has been attacked to communicating pipe (4) tip outer wall, communicating pipe (4) tip is furnished with mutual screw-thread fit's pipe form screwed pipe (6), install relief valve (9) on screwed pipe (6), install flow sensor in screwed pipe (6), flow sensor passes communicating pipe (4) through the data line and is connected with flowmeter body (1), screwed pipe (6) tip perpendicular intercommunication has pipe form survey buret (2), survey buret (2) both ends and all be equipped with ring flange (3) perpendicularly, survey buret (2) internally mounted has vortex generator (5).

2. The precession vortex flowmeter of claim 1 wherein: the flowmeter body (1) is an existing common precession vortex flowmeter.

3. The precession vortex flowmeter of claim 1 wherein: the communicating pipe (4) is made of stainless steel, and the communicating pipe (4) and the shell of the flowmeter body (1) are of an integral structure.

4. The precession vortex 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.

5. The precession vortex flowmeter of claim 1 wherein: the threaded pipe (6) and the air release valve (9) are both made of stainless steel, and the threaded pipe (6) is connected with the measuring pipe (2) through welding.