CN212747922U

CN212747922U - Micro-flow metal tube float flowmeter

Info

Publication number: CN212747922U
Application number: CN202021783546.6U
Authority: CN
Inventors: 丁喜宏
Original assignee: Wuxi Haines Automation Instrument Co ltd
Current assignee: Wuxi Haines Automation Instrument Co ltd
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2021-03-19
Anticipated expiration: 2030-08-24

Abstract

The utility model discloses a micro-flow metal tube float flowmeter, which comprises a cylindrical test tube; the metal pipe float flowmeter for the micro flow has the advantages of compact structure, convenient installation, small occupied space during use and capability of accurately measuring the micro flow in a pipeline, simultaneously when carrying out the float and changing needn't block fluid in the pipeline again, the setting that circular seal mounting panel combines annular seal groove has made things convenient for the utility model discloses an installation, the setting of display can carry out audio-visual demonstration to intraductal flow.

Description

Micro-flow metal tube float flowmeter

Technical Field

The utility model relates to a tubular metal resonator float flowmeter technical field specifically is a small flow tubular metal resonator float flowmeter.

Background

The metal tube float flowmeter has the advantages of simple structure, easy manufacture, visual flow indication value, easy maintenance and small pressure loss, and is widely applied to industrial fields. At the moment, the area of a circulation annular gap between the floater and the taper pipe is kept constant. The annular gap area is proportional to the rise height of the float, i.e. the position of the float rising in the measuring tube represents the magnitude of the flow, and the changing position of the float is transmitted by the internal magnet to an external indicator, which correctly indicates the value of the flow at that time. This causes the indicator housing to not be in direct contact with the measurement tube, and therefore, metal tube float flow meters are often used to measure high temperature, high pressure, hazardous fluids, and for conditions where the float position cannot be observed by the human eye, magnetic induction display mechanisms are employed.

When the cylindrical surface with the maximum diameter of the floater of the metal tube floater flowmeter is worn and the surface is rough, and the measured value is influenced, the rotor is replaced by a new one. When the metal tube float flowmeter in the prior art is used for measuring micro flow, the precision is low, and when the metal tube float flowmeter in the prior art is used for replacing and maintaining a float, fluid in a pipeline must be blocked, so that the liquid in the pipeline is cut off, and the production is influenced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a small flow tubular metal resonator float flowmeter, small flow in the measuring tube that can be accurate, needn't block fluid in the pipeline again when carrying out the float and changing simultaneously, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a micro-flow metal tube float flowmeter comprises a cylindrical test tube; the utility model discloses a cylindrical test tube, including cylindricality test tube, the lateral surface mid-mounting of cylindricality test tube has the rectangle casing, the medial surface middle part of rectangle casing is equipped with the singlechip, the display is installed to the lateral surface of rectangle casing, the medial surface lower extreme of cylindricality test tube is equipped with the toper guiding gutter, the medial surface mid-mounting of cylindricality test tube has hollow ceramic guide arm, the lateral surface sliding connection of hollow ceramic guide arm has the float, the up end of float is equipped with the magnet, the medial surface equipartition of hollow ceramic guide arm has magnetic resistance sensor, first cylindricality connecting pipe and second cylindricality connecting pipe are installed respectively at both ends about the lateral surface of cylindricality test tube, first manual ball valve and the manual ball valve of second are installed respectively to first cylindricality connecting pipe lateral surface lower extreme and the lateral surface upper end of.

Furthermore, the first cylindrical connecting pipe and the second cylindrical connecting pipe are both connected with the cylindrical test pipe in a sealing mode through the sealing flange plate.

Furthermore, the upper end face of the first cylindrical connecting pipe and the lower end face of the second cylindrical connecting pipe are both provided with a circular sealing mounting plate, and one end, away from the cylindrical testing pipe, of the outer side face of the circular sealing mounting plate is provided with an annular sealing groove.

Furthermore, a fourth manual ball valve and a third manual ball valve are respectively arranged at the upper end and the lower end of the outer side surface of the flow dividing pipe.

Furthermore, the input end of the single chip microcomputer is electrically connected with the output end of an external power supply, the output end of the single chip microcomputer is electrically connected with the input end of the display, and the single chip microcomputer is electrically connected with the magnetic resistance sensor in a bidirectional mode.

Compared with the prior art, the beneficial effects of the utility model are that: this small flow tubular metal resonator float flowmeter, compact structure, simple to operate, occupation space is little during the use, small flow in the measuring tube way that can be accurate, needn't block fluid in the pipeline again when carrying out the float and changing simultaneously, circular seal mounting panel combines setting up of annular seal groove to make things convenient for the utility model discloses an installation, setting up of display can carry out audio-visual demonstration to intraductal flow.

Drawings

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

FIG. 2 is a front view of the present invention;

FIG. 3 is a right side view of the present invention;

fig. 4 is a schematic view of the internal structure of the hollow ceramic guide rod.

In the figure: the device comprises a circular sealing mounting plate 1, an annular sealing groove 2, a first cylindrical connecting pipe 3, a first manual spherical valve 4, a rectangular shell 5, a cylindrical testing pipe 6, a second manual ball valve 7, a second cylindrical connecting pipe 8, a third manual ball valve 9, a shunt pipe 10, a fourth manual ball valve 11, a hollow ceramic guide rod 12, a floater 13, a conical diversion trench 14, a display 15, a single chip microcomputer 16, a magnet 17 and a magnetoresistive sensor 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a micro-flow metal tube float flowmeter comprises a cylindrical test tube 6; a rectangular shell 5 is arranged in the middle of the outer side surface of a cylindrical test tube 6, a single chip microcomputer 16 is arranged in the middle of the inner side surface of the rectangular shell 5, a display 15 is arranged on the outer side surface of the rectangular shell 5, the display 15 can visually display the flow in the tube, a conical diversion trench 14 is arranged at the lower end of the inner side surface of the cylindrical test tube 6, a hollow ceramic guide rod 12 is arranged in the middle of the inner side surface of the cylindrical test tube 6, a floater 13 is connected to the outer side surface of the hollow ceramic guide rod 12 in a sliding manner, a magnet 17 is arranged on the upper end surface of the floater 13, magnetoresistive sensors 18 are uniformly distributed on the inner side surface of the hollow ceramic guide rod 12, a first cylindrical connecting tube 3 and a second cylindrical connecting tube 8 are respectively arranged at the upper end and the lower end of the outer side surface of the first cylindrical connecting tube 3, the upper end of the outer side surface of a first cylindrical connecting pipe 3 is connected with the lower end of the outer side surface of a second cylindrical connecting pipe 8 through a shunt pipe 10, the first cylindrical connecting pipe 3 and the second cylindrical connecting pipe 8 are both connected with a cylindrical test pipe 6 in a sealing way through a sealing flange, the upper end surface of the first cylindrical connecting pipe 3 and the lower end surface of the second cylindrical connecting pipe 8 are both provided with a circular sealing mounting plate 1, one end of the outer side surface of the circular sealing mounting plate 1, which is far away from the cylindrical test pipe 6, is provided with an annular sealing groove 2, the circular sealing mounting plate 1 is convenient to install in combination with the annular sealing groove 2, the upper end and the lower end of the outer side surface of the shunt pipe 10 are respectively provided with a fourth manual ball valve 11 and a third manual ball valve 9, the input end of a single chip microcomputer 16 is electrically connected with the output, the micro-flow metal tube float flowmeter has the advantages of compact structure, convenience in installation, small occupied space during use, capability of accurately measuring micro-flow in a pipeline, and no need of blocking fluid in the pipeline when the float is replaced.

When in use: fill annular seal groove 2's medial surface with sealing material, will the utility model discloses concatenate to the pipeline that awaits measuring in, during the installation, make liquid get into from second cylindricality connecting pipe 8, flow out from first cylindricality connecting pipe 3, owing to set up taper guiding gutter 14 inside cylindricality test tube 6 and be long and narrow form, so float 13 can have great ascending distance under the effect of weak buoyancy, the measurement of weak flow has been made things convenient for, when float 13 is changed to needs, open third manual ball valve 9 and fourth manual ball valve 11, close first manual ball valve 4 and the manual ball valve 7 of second in proper order, pull down cylindricality test tube 6 at last, can carry out float 13 and change.

It should be noted that the specific model of the single chip microcomputer 16 disclosed in the present embodiment is siemens S7-200, the magnetoresistive sensor 18 is a KMY20M linear magnetoresistive sensor of anky electronic instruments ltd, guangzhou, and the single chip microcomputer 16 controls both the display 15 and the magnetoresistive sensor 18 by methods commonly used in the art.

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

Claims

1. A micro-flow metal tube float flowmeter is characterized in that: comprises a cylindrical test tube (6); a rectangular shell (5) is installed in the middle of the outer side surface of the cylindrical test tube (6), a single chip microcomputer (16) is arranged in the middle of the inner side surface of the rectangular shell (5), a display (15) is installed on the outer side surface of the rectangular shell (5), a conical diversion trench (14) is arranged at the lower end of the inner side surface of the cylindrical test tube (6), a hollow ceramic guide rod (12) is installed in the middle of the inner side surface of the cylindrical test tube (6), a floater (13) is connected to the outer side surface of the hollow ceramic guide rod (12) in a sliding mode, a magnet (17) is arranged on the upper end surface of the floater (13), magnetoresistive sensors (18) are evenly distributed on the inner side surface of the hollow ceramic guide rod (12), a first cylindrical connecting tube (3) and a second cylindrical connecting tube (8) are installed at the upper end and the lower end of the outer side surface of the first cylindrical connecting tube (3) and the upper end of, the upper end of the outer side surface of the first cylindrical connecting pipe (3) is connected with the lower end of the outer side surface of the second cylindrical connecting pipe (8) through a shunt pipe (10).

2. A micro flow metal tube float flowmeter according to claim 1, wherein: the first cylindrical connecting pipe (3) and the second cylindrical connecting pipe (8) are both in sealing connection with the cylindrical test pipe (6) through a sealing flange.

3. A micro flow metal tube float flowmeter according to claim 1, wherein: the upper end face of first cylindricality connecting pipe (3) and the lower terminal surface of second cylindricality connecting pipe (8) all are provided with circular seal mounting panel (1), and the one end that cylindricality test tube (6) were kept away from to the lateral surface of circular seal mounting panel (1) is equipped with annular seal groove (2).

4. A micro flow metal tube float flowmeter according to claim 1, wherein: and the upper end and the lower end of the outer side surface of the shunt pipe (10) are respectively provided with a fourth manual ball valve (11) and a third manual ball valve (9).

5. A micro flow metal tube float flowmeter according to claim 1, wherein: the input end of the single chip microcomputer (16) is electrically connected with the output end of an external power supply, the output end of the single chip microcomputer (16) is electrically connected with the input end of the display (15), and the single chip microcomputer (16) is electrically connected with the magnetic resistance sensor (18) in a bidirectional mode.