CN211877137U

CN211877137U - Magnetic induction type flowmeter

Info

Publication number: CN211877137U
Application number: CN202020257604.5U
Authority: CN
Inventors: 高敏诚
Original assignee: Titanium Systems Engineering Co ltd
Current assignee: Titanium Systems Engineering Co ltd
Priority date: 2020-03-05
Filing date: 2020-03-05
Publication date: 2020-11-06
Anticipated expiration: 2030-03-05

Abstract

The utility model provides a magnetic induction type flowmeter contains: a metal tube body, which is provided with a flow passage with gradually changed section area and a channel which is concave inwards from the outer surface of the metal tube body, and the outer surface of the metal tube body is provided with a plurality of scales which are arranged along the channel, and the flow passage with gradually changed section area can be used for the circulation of a tested fluid; the floating piece is arranged in the flow passage with the gradually-changed sectional area of the metal pipe body; one end of the elastic piece is fixed on the metal pipe body, and the other end of the elastic piece is fixed on the floating piece; an indicating piece, include a first magnetic part and a second magnetic part, the first magnetic part is set up in the channel, the second magnetic part connects the floating piece, when a fluid to be measured passes the flow path of the gradual change sectional area, can drive the floating piece to actuate, rely on the second magnetic part connected to the floating piece to utilize the magnetic force to absorb the first magnetic part to displace in the channel, and correspond to the above-mentioned scale and display by a bulge set up in the first magnetic part.

Description

Magnetic induction type flowmeter

Technical Field

The utility model relates to a magnetic induction type flowmeter especially indicates that the flow indicator of flowmeter is through magnetic control's utility model.

Background

Please refer to taiwan patent publication No. M457170, which provides a flowmeter with magnetic pointer, comprising a transparent cylinder, a fixed rod and a magnetic float installed inside the cylinder, and a scale marked on the outer surface of the cylinder, wherein a magnetic pointer is installed on the installation structure of the outer side surface of the transparent cylinder in a slidable manner, and the magnetic pointer is attracted by the magnetic float to allow an operator to easily identify the position of the float when measuring turbid fluids and regardless of good visibility and poor visibility of the fluids in the pipeline, thereby correctly reading the flow value. In addition, the utility model discloses a mounting structure of barrel is characterized in that including the index of the upper and lower limits of markable flow, can match the use with foretell magnetic pointer or magnetism float in order to reach the purpose of control flow.

The utility model discloses a set up the magnetism pointer in the outside of this transparent barrel, do not have direct or indirect absorption between magnetism pointer and the magnetism float, consequently, the relative position between magnetism float and the magnetism pointer produces the error easily, leads to the operator to have the deviation when explaining present fluid flow value.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the utility model provides a magnetic induction formula flowmeter, solves the above-mentioned technical problem that exists among the prior art.

Accordingly, the present invention provides a magnetic induction flowmeter including: a metal tube body, which is provided with a flow passage with gradually changed section area and a first channel which is concave inwards from the outer surface of the metal tube body, and the outer surface of the metal tube body is provided with a plurality of scales which are arranged along the first channel, and the flow passage with gradually changed section area can be used for the circulation of a tested fluid; the floating piece is arranged in the flow passage with the gradually-changed sectional area of the metal pipe body, and the tested fluid drives the floating piece to move in the flow passage with the gradually-changed sectional area; one end of the elastic piece is fixed on the metal pipe body, and the other end of the elastic piece is fixed on the floating piece; and the indicating piece comprises a first magnetic piece and a second magnetic piece, the first magnetic piece is arranged in the first channel, and the second magnetic piece is connected with the floating piece.

The tapered cross-sectional area of the runner is gradually changed by arranging a tapered cylinder in the metal pipe body, and the tapered cylinder enables the cross-sectional area of the runner of the metal pipe body to be gradually changed.

The flow channel with gradually changed cross section is in a gradually expanding shape through the inner pipe wall of the metal pipe body, so that the cross section of the flow channel of the metal pipe body is gradually changed.

Wherein, two opposite sides of the first channel are respectively provided with a retaining wall, and the bottom surface of the channel is provided with an arc-shaped concave part.

The first magnetic part and the second magnetic part are a combination of a magnet and a magnetic induction metal or a combination of two magnets.

Wherein, the first magnetic part has a protruding part corresponding to the scale.

Wherein, a sleeve is sleeved on the convex part.

Wherein, a vernier warning component is arranged on the outer surface of the metal pipe body.

Wherein, a magnet is embedded into the cursor warning member and can adsorb the outer surface of the metal tube.

Wherein, the outer surface of the metal tube has a second slot, and the cursor warning member moves in the second slot.

According to the technical characteristics, the following effects can be achieved:

1. when the measured fluid flows through the flow passage with gradually changed cross-sectional area, the floating part is pushed, so that the second magnetic part connected with the floating part adsorbs the first magnetic part to displace in the first channel by utilizing magnetic force, and the first magnetic part indicates the scale of the corresponding flow.

2. The metal pipe body is made of metal and has good rigidity, and when two ends of the metal pipe body are screwed on the fluid pipeline through the nuts, the joint has better strength, cracks are not easy to generate for a long time, and the service life is better.

3. The gradually-changed cross-sectional area flow channel in the metal pipe body can be achieved by arranging a conical column in the metal pipe body or arranging the inner pipe wall of the metal pipe body in a gradually-expanded form.

4. The first magnetic member is sleeved with the red sleeve member, so that the first magnetic member has a striking effect, and a user can clearly see the scales displayed at present.

5. The bottom surface of the channel is provided with the arc-shaped concave part so as to reduce the friction resistance generated by the displacement of the first magnetic part in the channel.

6. The magnet is embedded into the vernier warning piece, and the vernier warning piece can be adsorbed on the second channel on the outer surface of the metal pipe body through the magnet, so that the vernier warning piece cannot be loosened or slipped due to long-term use.

Drawings

Fig. 1 is a perspective view of a magnetic induction flowmeter according to a first embodiment.

Fig. 2 is a sectional view of fig. 1.

Fig. 3 is a cross-sectional view of fig. 2.

Fig. 4 is a cross-sectional view of fig. 1.

Fig. 5 is a cross-sectional view of fig. 4.

Fig. 6 is a perspective view of a cursor warning member of the magnetic flowmeter according to the first embodiment.

Fig. 7 is a first magnetic element actuation diagram of the magnetic induction flowmeter of the first embodiment.

Fig. 8 is an external view of the first magnetic member of the magnetic induction flowmeter according to the first embodiment.

Fig. 9 is a diagram showing the operation of the cursor warning element of the magnetic flowmeter according to the first embodiment.

FIG. 10 is a schematic view of the cursor warning element of the magnetic flowmeter according to the first embodiment.

Fig. 11 is a schematic configuration diagram of a magneto-inductive flow meter according to a second embodiment.

Description of reference numerals: 1-a metal tube body; 11-a flow channel; 111-tapered cylinders; 112-a central column; 12-a first channel; 120-retaining wall; 121-arcuate recess; 13-a second channel; 14-graduation; 2-a float member; 3-an elastic member; 4-an indicator; 41-a first magnetic member; 411-a projection; 412-kit; 42-a second magnetic element; 5-a cursor warning member; 51-magnet.

Detailed Description

In view of the above technical features, the main functions of the magnetic induction flowmeter of the present invention will be clearly demonstrated in the following embodiments.

Please refer to fig. 1 and fig. 2, which illustrate a first embodiment of the present invention, comprising: a metal tube 1 has a flow channel 11 with a gradually changing cross-sectional area, the flow channel 11 with a gradually changing cross-sectional area is formed by disposing a tapered column 111 in the metal tube 1, and the tapered column 111 gradually changes the cross-sectional area of the flow channel of the metal tube 1. The outer surface of the metal tube 1 has a first groove 12 and a second groove 13 along the extending direction of the metal tube 1, and the outer surface of the metal tube 1 is provided with a plurality of scales 14 corresponding to the first groove 12 and the second groove 13. A floating member 2 disposed in the flow channel 11 with gradually-changed cross-sectional area of the metal tube 1. An elastic component 3 is arranged on the metal pipe body 1, one end of the elastic component 3 is fixed on the metal pipe body 1, and the other end is connected with the floating component 2. An indicator 4 includes a first magnetic member 41 and a second magnetic member 42, the first magnetic member 41 is disposed in the first slot 12, the first magnetic member 41 has a protrusion 411, the protrusion 411 has a sleeve 412, and the second magnetic member 42 is connected to the floating member 2. A cursor warning member 5 disposed in the second slot 13 of the metal tube 1.

Referring to fig. 3, a retaining wall 120 is respectively disposed at two opposite sides of the first slot 12, the retaining wall 120 can prevent the first magnetic member 41 from slipping off when the first slot 12 slides linearly, and an arc-shaped concave portion 121 is disposed on the bottom surface of the first slot 12, so that when the first magnetic member 41 slides linearly in the first slot 12, the friction resistance generated during the movement can be reduced, and the first magnetic member 41 can move more smoothly in the first slot 12.

Referring to fig. 4 to 6, a magnet is embedded in the cursor warning member, when the cursor warning member 5 is disposed in the second slot 13 of the metal tube 1, the magnet is used to adsorb the outer surface of the metal tube, and the magnet 51 enables the cursor warning member 5 to be stably disposed in the second slot 13 without loosening or slipping, so as to improve the disadvantage of the plastic warning member used in the past that it loosens or slips due to long-term use.

Referring to fig. 7 and 8, when a fluid to be detected flows through the flow channel 11 with gradually-changing cross-sectional area, the fluid to be detected drives the floating member 2 to linearly slide along the inner wall surface of the metal pipe 1, and the floating member 2 is connected to the second magnetic member 42, so the second magnetic member 42 also linearly slides along the floating member 2, and in addition, the second magnetic member 42 is attracted to the first magnetic member 41 of the first channel 12 by magnetic force, so when the second magnetic member 42 linearly slides, the first magnetic member 41 is also attracted by the second magnetic member 42 to linearly slide in the first channel 12, and the sleeve 412 is arranged on the first magnetic member 41, and the sleeve 412 corresponds to the scales 14, so as to display the current flow rate of the fluid to be detected. The elastic member 3 can provide a restoring force to the floating member 2, and when the flow rate of the fluid to be measured is gradually reduced, the floating member 2 can be slowly restored to the initial state.

Referring to fig. 6, 9 and 10, the cursor warning member 5 is provided with the magnet 51 capable of being attached to the second channel 13, and the cursor warning member 5 is adjustable and can automatically adjust the position of the cursor warning member 5, the plurality of scales 14 corresponding to the cursor warning member 5 are the upper limit value and the lower limit value of the fluid flow to be measured, and when the set upper limit value is exceeded or the set lower limit value is fallen, a warning is sent to remind the user that the current fluid flow exceeds the set range.

Referring to fig. 11, a second embodiment of the present invention is different from the first embodiment in that the inner wall of the metal pipe 1 is gradually expanded to gradually change the sectional area of the flow channel 11 of the metal pipe 1, and a center post 112 is disposed in the metal pipe 1, so that the floating member 2 can linearly slide along the center post 112, and the second magnetic member 42 can absorb the first magnetic member 41 to linearly slide in the first channel 12.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A magnetic induction flow meter, comprising:

a metal tube body, which is provided with a flow passage with gradually changed section area and a first channel which is concave inwards from the outer surface of the metal tube body, and the outer surface of the metal tube body is provided with a plurality of scales which are arranged along the first channel, and the flow passage with gradually changed section area can be used for the circulation of a tested fluid;

the floating piece is arranged in the flow passage with the gradually-changed sectional area of the metal pipe body, and the tested fluid drives the floating piece to move in the flow passage with the gradually-changed sectional area;

one end of the elastic piece is fixed on the metal pipe body, and the other end of the elastic piece is fixed on the floating piece;

and the indicating piece comprises a first magnetic piece and a second magnetic piece, the first magnetic piece is arranged in the first channel, and the second magnetic piece is connected with the floating piece.

2. The flowmeter of claim 1, wherein the graded cross-sectional flow channel is formed by providing a tapered cylinder in the metal tube, the tapered cylinder tapering the cross-sectional flow channel of the metal tube.

3. The magnetic flowmeter of claim 1, wherein the graded cross-sectional flow channel is tapered through the inner tubular wall of the tubular metal body such that the cross-sectional flow channel area of the tubular metal body is graded.

4. The magnetic flowmeter of claim 1, wherein each of the opposing sides of the first channel has a retaining wall and the bottom surface of the first channel has an arcuate recess.

5. The flowmeter of claim 1, wherein said first magnetic member and said second magnetic member are a combination of a magnet and a magnetically sensitive metal or a combination of two magnets.

6. The magnetic flowmeter of claim 1, wherein said first magnetic member has a protrusion corresponding to said scale.

7. The flowmeter of claim 6, wherein the protrusion is provided with a sleeve.

8. The flowmeter of claim 1, wherein a cursor warning element is disposed on the outer surface of the metal tube.

9. The magnetic flowmeter of claim 8, wherein a magnet is embedded in the cursor indicator, the magnet being adapted to attract the outer surface of the metal tube.

10. The magnetic flowmeter of claim 9, wherein the metal tube has a second channel in the outer surface thereof, the cursor warning member being displaceable in the second channel.