CN211527493U

CN211527493U - Precession vortex flowmeter

Info

Publication number: CN211527493U
Application number: CN201922410369.0U
Authority: CN
Inventors: 闵金卫; 刘炎光
Original assignee: Shanghai Zhangang Technology Group Jiangsu Co ltd; Yichang Throttling Device Manufacturing Jiangsu Co ltd
Current assignee: Shanghai Zhangang Technology Group Jiangsu Co ltd; Yichang Throttling Device Manufacturing Jiangsu Co ltd
Priority date: 2019-12-28
Filing date: 2019-12-28
Publication date: 2020-09-18
Anticipated expiration: 2029-12-28

Abstract

The utility model relates to the technical field of flowmeters, and discloses a precession vortex flowmeter, which comprises a measuring tube, wherein the left side wall surface of the measuring tube is provided with a liquid inlet, the left end of the inner wall of the measuring tube is fixedly provided with a support column near the liquid inlet, the end of the support column is movably provided with a vortex generator, the inner wall of the measuring tube is fixedly provided with an accelerating channel, the accelerating channel is arranged in the measuring tube by arranging the accelerating channel, the side wall of the accelerating channel is provided with a first circular opening, the first circular opening is in the shape of big left and small right, the vortex generator is arranged at the left of the circular opening, when the vortex generator pushes the vortex to the accelerating channel, as the inside of the accelerating channel gradually decreases from left to right, the speed of the vortex becomes faster when the large-area vortex passes through the inside of the accelerating channel, the accelerating, the damage of the vortex generator is also avoided, and the working efficiency of the precession vortex flowmeter is improved.

Description

Precession vortex flowmeter

Technical Field

The invention relates to the technical field of flowmeters, in particular to a precession vortex flowmeter.

Background

The flowmeter is a meter for measuring the flow of fluid in a pipeline or an open channel, and the measurement is the eye of industrial production. The flow measurement is one of the components of the measurement science and technology, and has close relation with national economy, national defense construction and scientific research. The vortex precession flowmeter is widely applied to measuring various gas flows in industries such as petroleum, chemical industry, electric power, metallurgy, urban gas supply and the like at present, has the advantages of strong function, wide flow range, simplicity in operation and maintenance, convenience in installation and use and the like, and has the main working principle of utilizing the vortex precession phenomenon to measure the flow, wherein the vortex precession frequency is in direct proportion to the flow of fluid.

When the existing precession vortex flowmeter calculates the flow, in order to make the vortex grow, the rotating frequency of the vortex generator is accelerated when the speed of the vortex becomes fast, the efficiency of the flowmeter can be accelerated by the improvement, but the vortex generator is aged or worn due to the fact that the using speed is too fast after the time is long, the service life of the vortex generator is shortened, a worker needs to replace and maintain the vortex generator frequently, and the workload is increased for the worker.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the precession vortex flowmeter which has the advantages of accelerating the vortex speed and the like and solves the problem of serious structural wear.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a precession eddy current meter, includes surveys buret, survey buret is columniform pipe, and the inlet has been seted up to survey buret's left side wall, and the inlet is circular shape mouth, and the position fixed mounting that surveys buret's inner wall left end is close to the inlet has the support column, and the support column is square pole, and the terminal movable mounting of support column has vortex generator, and fixed mounting has the passageway with higher speed on surveying buret's the inner wall, and the passageway is cylindrical shape with higher speed, and circular opening one has been seted up with higher speed the left side wall of passageway, and circular opening one has run through the wall about the passageway with higher speed, and circular.

Preferably, the aperture has been seted up to the top wall of surveying buret, and the aperture has been seted up equally to the top wall of passageway with higher speed, and the top wall fixed mounting of surveying buret has the pressure measurement ware, and the pressure measurement ware passes the inside of aperture intercommunication passageway with higher speed, and the top wall fixed mounting of surveying buret has the connecting block, and the connecting block is columniform piece, and the top wall fixed mounting of connecting block has the flow calculation appearance, and the flow calculation appearance passes through electric connection together with the pressure measurement ware.

Preferably, the right side fixed mounting who accelerates the passageway has the expansion pipeline, and the expansion pipeline is cylindrical shape, and circular opening two has been seted up to the left side wall of expansion pipeline, and circular opening two is the big shape in the little right on the left side, surveys the right side wall of pipe and has seted up the liquid outlet, and the liquid outlet is the circular shape hole.

Preferably, the equal fixed mounting in both ends has the spiral piece about surveying buret, the spiral piece is columniform piece, the outside wall of spiral piece is the shape of spiral, round hole one has all been seted up on the lateral wall of every spiral piece, round hole one has run through the left and right sides wall of spiral piece, survey buret and the inside intercommunication of spiral piece together, the outside wall of every spiral piece all has the installation piece through spiral movable mounting, the installation piece is square piece, and install on the side wall of installation piece round hole two, round hole two has run through the wall about the installation piece, the helicla flute has been seted up to the inside of round hole two, spiral piece and installation piece are in the same place through spiral movable mounting.

Preferably, every the mounting block is last to have seted up the fixed orifices, and the fixed orifices is the circular shape hole, and the fixed orifices has four, and four fixed orifices offer in four corners of mounting block, and equal fixed mounting has the rubber circle on every mounting block keeps away from a lateral wall face of surveying buret, and the rubber circle is the shape of ring.

(III) advantageous effects

Compared with the prior art, the invention provides a precession vortex flowmeter, which has the following beneficial effects:

1. the vortex precession flowmeter is provided with an acceleration channel, an acceleration channel is arranged in a measuring tube, a first circular opening is arranged on the side wall of the acceleration channel, the first circular opening is in a shape with a larger left side and a smaller right side, a vortex generator is arranged at the left side of the first circular opening, when the vortex generator pushes a vortex to the acceleration channel, as the inside of the acceleration channel is gradually reduced from left to right, and the vortex with a large area passes through the inside of the acceleration channel, the area can be gradually reduced by the vortex according to the shape inside the acceleration channel, so that the speed of the vortex is increased, when the vortex passes through a pressure measurer, the pressure pushed by the vortex can be applied to the pressure measurer, the pressure measurer collects data and transmits the data to a flow calculator, the flow is calculated by the flow calculator, the acceleration channel not only can accelerate the speed of the vortex, but also avoids the damage of, the working efficiency of the precession vortex flowmeter is improved.

2. This precession vortex flowmeter, through having set up the installation piece, round hole two passes through spiral movable mounting with the spiral piece and is in the same place, the installation of easy to assemble piece is dismantled, set up the installation piece into square shape, it is in the same place installation piece and external equipment fixed connection to use the bolt to pass the fixed orifices, set up four corners at the installation piece with the fixed orifices, can prevent that the installation piece from receiving external force and sliding, it is more firm, and a lateral wall face that the installation piece is connected with external equipment is provided with the rubber circle, because precession vortex flowmeter measures all be liquid, the rubber circle has the leakproofness, prevent to flow at the in-process liquid outflow of measuring flow, avoid because the liquid outflow leads to the condition emergence of flow measurement mistake, the work efficiency of precession vortex flowmeter has been improved.

Drawings

FIG. 1 is a schematic sectional elevation view of the structure of the present invention;

FIG. 2 is a perspective view of a structural mounting block of the present invention;

FIG. 3 is a schematic side view of the structure of the present invention.

In the figure: the device comprises a measuring pipe 1, a liquid inlet 2, a supporting column 3, a vortex generator 4, an accelerating channel 5, a first circular opening 6, a small hole 7, a pressure measurer 8, a flow calculator 9, an expansion pipeline 10, a second circular opening 11, a liquid outlet 12, a spiral block 13, a first circular hole 14, a mounting block 15, a second circular hole 16, a fixing hole 17, a rubber ring 18 and a connecting block 19.

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.

Referring to fig. 1-3, a precession vortex flowmeter comprises a measuring tube 1, wherein the measuring tube 1 is a cylindrical tube, a liquid inlet 2 is formed in a left side wall surface of the measuring tube 1, the liquid inlet 2 is a circular opening, a supporting column 3 is fixedly mounted at a position, close to the liquid inlet 2, of a left end of an inner wall of the measuring tube 1, the supporting column 3 is a square rod, a vortex generator 4 is movably mounted at a tail end of the supporting column 3, the vortex generator 4 is of an existing structure, which is not described herein, an accelerating channel 5 is fixedly mounted on the inner wall of the measuring tube 1, the accelerating channel 5 is in a cylindrical shape, a circular opening one 6 is formed in the left side wall surface of the accelerating channel 5, the circular opening one 6 penetrates through left and right wall surfaces of the accelerating channel 5, the circular opening one 6 is in a shape with a large left side and a small right side, a small hole 7 is, the pressure measurer 8 is fixedly installed on the upper wall surface of the measuring pipe 1, the pressure measurer 8 is of an existing structure and not described herein, the pressure measurer 8 penetrates through the small hole 7 to be communicated with the inside of the acceleration channel 5, the upper wall surface of the measuring pipe 1 is fixedly provided with the connecting block 19, the connecting block 19 is a cylindrical block, the upper wall surface of the connecting block 19 is fixedly provided with the flow calculator 9, the flow calculator 9 is of an existing structure and not described herein, the flow calculator 9 is electrically connected with the pressure measurer 8, the right side of the acceleration channel 5 is fixedly provided with the expansion pipeline 10, the expansion pipeline 10 is of a cylindrical shape, the left side wall surface of the expansion pipeline 10 is provided with a circular opening two 11, the circular opening two 11 is of a small left side and a large right side, the right side wall surface of the measuring pipe 1 is provided with a liquid outlet 12, the liquid outlet 12 is a circular hole, and, the spiral block 13 is a cylindrical block, the outer side wall surface of the spiral block 13 is in a spiral shape, the side wall of each spiral block 13 is provided with a first round hole 14, the first round hole 14 penetrates through the left side wall surface and the right side wall surface of the spiral block 13, the measuring pipe 1 is communicated with the inside of the spiral block 13, the outer side wall surface of each spiral block 13 is movably provided with an installation block 15 through a spiral, the installation block 15 is a square block, the side wall of the installation block 15 is provided with a second round hole 16, the second round hole 16 penetrates through the left side wall surface and the right side wall surface of the installation block 15, the inside of the second round hole 16 is provided with a spiral groove, the spiral block 13 and the installation block 15 are movably installed together through a spiral, each installation block 15 is provided with a fixing hole 17, the fixing holes 17 are circular, the fixing holes 17 are four, the four fixing holes 17 are arranged on the four measuring pipes of the installation block 15, a corner of a rubber ring, the rubber ring 18 is in the shape of a circular ring.

When in use, the utility model is used,

firstly, be connected to the external equipment with installation piece 15 on, it is in the same place with installation piece 15 and external equipment fixed connection to pass fixed orifices 17 with the bolt, and fixed mounting has rubber circle 18 on the wall of installation piece 15 outside, rubber circle 18 has the leakproofness, guaranteed that there is not the object to spill over and influence the measuring result at the in-process of measuring flow, after will installing piece 15 is fixed, the liquid that needs the measurement gets into from inlet 2, utilize vortex generator, make liquid produce the swirl, inside at survey buret 1 is provided with acceleration channel 5, acceleration channel 5 is from big to little structure, make the speed of swirl accelerate, when passing through pressure measurement ware 8, pressure measurement ware 8 is with data transmission to flow calculation appearance 9, the flow data that reachs after the calculation through flow calculation appearance 9.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the spirit and scope of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A precession vortex flowmeter, including surveying buret (1), its characterized in that: the measuring pipe is characterized in that a liquid inlet (2) is formed in the left side wall surface of the measuring pipe (1), a supporting column (3) is fixedly installed at the position, close to the liquid inlet (2), of the left end of the inner wall of the measuring pipe (1), a vortex generator (4) is movably installed at the tail end of the supporting column (3), an accelerating channel (5) is fixedly installed on the inner wall of the measuring pipe (1), a pressure measurer (8) is arranged on the upper wall surface of the measuring pipe (1), a flow calculator (9) is arranged on the upper wall surface of the measuring pipe (1), an expanding pipeline (10) is fixedly installed on the right side of the accelerating channel (5), a circular opening II (11) is formed in the left side wall surface of the expanding pipeline (10), a liquid outlet (12) is formed in the right side wall surface of the measuring pipe (1), spiral blocks (13) are fixedly installed at the left end, and a rubber ring (18) is fixedly arranged on one side wall surface of each mounting block (15) far away from the measuring pipe (1).

2. A precession vortex flowmeter according to claim 1 wherein: a first circular opening (6) is formed in the left side wall face of the accelerating channel (5), and the first circular opening (6) penetrates through the left wall face and the right wall face of the accelerating channel (5).

3. A precession vortex flowmeter according to claim 1 wherein: the small hole (7) has been seted up to the top wall of surveying buret (1), and small hole (7) have been seted up equally to the top wall of accelerateing passageway (5), and the top wall fixed mounting of surveying buret (1) has pressure measurement ware (8), and pressure measurement ware (8) pass inside aperture (7) intercommunication accelerateing passageway (5).

4. A precession vortex flowmeter according to claim 1 wherein: the upper wall surface of the measuring pipe (1) is fixedly provided with a connecting block (19), the upper wall surface of the connecting block (19) is fixedly provided with a flow calculator (9), and the flow calculator (9) is electrically connected with the pressure measurer (8).

5. A precession vortex flowmeter according to claim 1 wherein: every all seted up round hole one (14) on the lateral wall of spiral piece (13), round hole one (14) have run through the left and right sides lateral wall face of spiral piece (13), survey buret (1) and the inside intercommunication of spiral piece (13) together.

6. A precession vortex flowmeter according to claim 1 wherein: install round hole two (16) on installation piece (15) lateral wall, round hole two (16) have run through the wall about installation piece (15), and the helicla flute has been seted up to the inside of round hole two (16), and spiral piece (13) and installation piece (15) are in the same place through spiral movable mounting, have seted up fixed orifices (17) on every installation piece (15), and fixed orifices (17) have four, and four corners in installation piece (15) are seted up in four fixed orifices (17).