CN209894228U - Metal tube float flowmeter - Google Patents
Metal tube float flowmeter Download PDFInfo
- Publication number
- CN209894228U CN209894228U CN201920816237.5U CN201920816237U CN209894228U CN 209894228 U CN209894228 U CN 209894228U CN 201920816237 U CN201920816237 U CN 201920816237U CN 209894228 U CN209894228 U CN 209894228U
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- float
- metal tube
- magnetic ring
- shell
- flowmeter
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Abstract
The utility model provides a tubular metal resonator float flowmeter. The utility model discloses a casing and the float of setting in the casing the inside, the casing lower part is provided with one section inverted cone shape pipe, the leading truck is connected on casing upper portion, the centre of leading truck is provided with the balanced magnetic ring of inside magnetic field intensity, be provided with on the float and pass the guide bar of magnetic ring, the guide bar adopts cylindrical iron set and the external diameter of iron set does 0.5-0.8 times of magnetic ring internal diameter, float the inside evenly fill up and be equipped with a plurality of identical cylindrical magnet steel and every the N utmost point of magnet steel is all up or all down. The utility model discloses can effectively avoid the float jamming that the guide bar blockked up and arouse, measuring result is accurate reliable, job stabilization.
Description
The technical field is as follows:
the utility model relates to a tubular metal resonator float flowmeter belongs to instrument and meter technical field.
Background art:
the float of the metal tube float flowmeter is arranged in the measuring tube, the float moves upwards along with the change of flow, and the buoyancy force borne by the float at a certain position is balanced with the gravity of the float. At the moment, the circulation annular space area between the floater and the orifice plate (or the conical 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 leaves the indicator housing out of direct contact with the measurement tube, so that the meter can be used in high temperature, high pressure operating conditions even if a limit switch or transmitter is installed. The flow detecting element of the metal float flowmeter consists of a vertical conical pipe which is enlarged from bottom to top and a float group which moves up and down along the axis of the conical pipe.
When the measured fluid passes through the annular gap formed by the taper pipe and the floater from bottom to top, differential pressure is generated at the upper end and the lower end of the floater to form the rising force of the floater, when the rising force borne by the floater is larger than the weight of the floater immersed in the fluid, the floater rises, the area of the annular gap is increased, the flow rate of the fluid at the annular gap is immediately reduced, the differential pressure at the upper end and the lower end of the floater is reduced, the rising force acting on the floater is reduced, and the floater is stabilized at a certain height until the rising force is equal to the weight of the floater immersed in. The height of the float in the taper pipe corresponds to the flow passing through. The magnetic steel is arranged in the floater, and when the floater moves up and down along with the medium, the magnetic field changes along with the movement of the floater. According to the existing metal tube float flowmeter, guide rods are respectively arranged at the upper end and the lower end of a float, but the guide rods are easily blocked due to the influence of liquid crystallization or impurities, so that the measurement accuracy is influenced.
The invention content is as follows:
the utility model aims at the problem that exists above-mentioned provides a tubular metal resonator float flowmeter, can effectively avoid the guide bar to block the float jamming that arouses, and measuring result is accurate reliable, job stabilization.
The above purpose is realized by the following technical scheme:
the utility model provides a tubular metal resonator float flowmeter, includes the casing and sets up the float in the casing the inside, the casing lower part is provided with one section inverted cone shape pipe, the leading truck is connected on casing upper portion, the centre of leading truck is provided with the balanced magnetic ring of inside magnetic field intensity, be provided with on the float and pass the guide bar of magnetic ring, the guide bar adopts cylindrical iron set and the external diameter of iron set is 0.5-0.8 times of the magnetic ring internal diameter, the float the inside evenly filled with a plurality of identical cylindrical magnet steel and every the N utmost point of magnet steel all faces up or all faces down.
The length of the conical tube of the metal tube float flowmeter is 80-120 mm, and the included angle between the normal of the conical tube and the vertical direction is 40-60 degrees.
The metal tube float flowmeter is characterized in that a ceramic sleeve is sleeved outside the float.
The upper end and the lower end of the shell of the metal pipe float flowmeter are respectively provided with an upper flange and a lower flange.
The metal tube float flowmeter, the leading truck passes through the jump ring and installs the lower part of upper flange.
Has the advantages that:
1. the utility model discloses the centre of leading truck is provided with the balanced magnetic ring of inside magnetic field intensity, be provided with on the float and pass the guide bar of magnetic ring, the guide bar adopts cylindrical iron set and the external diameter of iron set does 0.5-0.8 of magnetic ring internal diameter is doubly, under the effect in the balanced magnetic field that the magnetic ring provided, the guide bar that the iron set was made is in the central point of guide ring all the time and puts, provides stable guide effect for the float, has avoided traditional leading truck because crystal or impurity get into the jam scheduling problem that causes, and measuring result is accurate reliable, job stabilization.
2. The utility model discloses a float the inside evenly is filled with a plurality of identical cylindrical magnet steel and every the N utmost point of magnet steel is all up or all down, has guaranteed the uniformity in magnetic field, can not lead to measuring error.
3. The utility model discloses an outside cover of float is equipped with ceramic cover, has avoided the fluid to the wearing and tearing of float, long service life.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention.
FIG. 1, a housing; 2. a float; 3. a reverse tapered tube; 4. a guide frame; 5. a magnetic ring; 6. a guide bar; 7. an upper flange; 8. and a lower flange.
The specific implementation mode is as follows:
example 1:
as shown in fig. 1: the metal tube float flowmeter comprises a shell 1 and a floater 2 arranged in the shell, wherein a section of inverted cone-shaped tube 3 is arranged on the lower portion of the shell, a guide frame 4 is connected to the upper portion of the shell, a magnetic ring 5 with balanced internal magnetic field intensity is arranged in the middle of the guide frame, a guide rod 6 penetrating through the magnetic ring is arranged on the floater, the guide rod is a cylindrical iron rod, the outer diameter of the iron rod is 0.5-0.8 times of the inner diameter of the magnetic ring, and a plurality of identical cylindrical magnetic steels are uniformly filled in the floater, and the N poles of the magnetic steels are all upward or downward.
In the metal tube float flowmeter in the embodiment, the length of the conical tube is 80mm-120mm, and an included angle between a normal line of the conical tube and the vertical direction is 40-60 degrees.
In the metal tube float flowmeter in this embodiment, a ceramic sleeve is sleeved outside the float.
In the metal tube float flowmeter in this embodiment, the upper and lower ends of the casing are respectively provided with an upper flange 7 and a lower flange 8.
In the metal tube float flowmeter of the present embodiment, the guide frame is mounted on the lower portion of the upper flange by a snap spring
The technical means disclosed by the scheme of the utility model is not limited to the technical means disclosed by the technical means, but also comprises the technical scheme consisting of the equivalent replacement of the technical features. The present invention is not to be considered as the best thing, and belongs to the common general knowledge of the technicians in the field.
Claims (5)
1. A metal tube float flowmeter is characterized in that: the magnetic steel float is characterized by comprising a shell and a float arranged in the shell, wherein a section of inverted cone-shaped pipe is arranged at the lower part of the shell, a guide frame is connected to the upper part of the shell, a magnetic ring with balanced internal magnetic field intensity is arranged in the middle of the guide frame, a guide rod penetrating through the magnetic ring is arranged on the float, the guide rod is a cylindrical iron rod, the outer diameter of the iron rod is 0.5-0.8 time of the inner diameter of the magnetic ring, a plurality of completely same cylindrical magnetic steels are uniformly filled in the float, and the N poles of the magnetic steels are all upward or downward.
2. The metal tube float flowmeter of claim 1, wherein: the length of the conical tube is 80mm-120mm, and the included angle between the normal line of the conical tube and the vertical direction is 40-60 degrees.
3. The metal tube float flowmeter of claim 1, wherein: and a ceramic sleeve is sleeved outside the floater.
4. The metal tube float flowmeter of claim 1, wherein: the upper end and the lower end of the shell are respectively provided with an upper flange and a lower flange.
5. The metal tube float flowmeter of claim 4, wherein: the guide frame is installed on the lower portion of the upper flange through a clamping spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920816237.5U CN209894228U (en) | 2019-06-01 | 2019-06-01 | Metal tube float flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920816237.5U CN209894228U (en) | 2019-06-01 | 2019-06-01 | Metal tube float flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209894228U true CN209894228U (en) | 2020-01-03 |
Family
ID=69001472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920816237.5U Active CN209894228U (en) | 2019-06-01 | 2019-06-01 | Metal tube float flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209894228U (en) |
-
2019
- 2019-06-01 CN CN201920816237.5U patent/CN209894228U/en active Active
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