CN2532463Y - Magnetic effect non-contact type liquid level measurer - Google Patents
Magnetic effect non-contact type liquid level measurer Download PDFInfo
- Publication number
- CN2532463Y CN2532463Y CN 02209231 CN02209231U CN2532463Y CN 2532463 Y CN2532463 Y CN 2532463Y CN 02209231 CN02209231 CN 02209231 CN 02209231 U CN02209231 U CN 02209231U CN 2532463 Y CN2532463 Y CN 2532463Y
- Authority
- CN
- China
- Prior art keywords
- communicating pipe
- wave
- liquid level
- level gauge
- magnet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Level Indicators Using A Float (AREA)
Abstract
The utility model discloses a magnetic action noncontact level gauge. The novel level gauge utilizes the theory of galvanomagnetic effect for ensuring the current impulse to form a circumferential pulsed magnetic field in a wave-guide to act with an axial permanent magnetic field for activating the wave-guide to turn and oscillate, and the oscillating backward-wave is collected by a magnetoelectrical sensor. The liquid level can be measured through the measure of the displacement of a measured thing which drives a permanent magnet to move according to the theory of measuring emission current pulse and the period of the backward-wave. The level gauge comprises a shell, a thermal insulation ring, a wave-guide and a communicating pipe, wherein a floater is arranged in the communicating pipe, a magnet is arranged in the middle part of the floater. The novel level gauge is a surveymeter which can measure liquid level in severe environments.
Description
The utility model relates to a kind of level gauging instrument, is specially adapted to use in high-temp liquid, remote non-direct observation site.
At present, when under the causticity environment that the monitor staff is difficult for staying for a long time for a long time, carrying out level gauging, boiler drum water level measurement as the generating plant, normal remote level indicator and the double colored indicator of adopting, this metering system adopts the lifting of liquid level and the electric conductivity of liquid to come make contact, represents the height of liquid level again by relevant device, because electric contact can not be unlimited many, make the measurement of liquid level have bigger error; Though double colored indicator can show the height of liquid level intuitively, but can not transmit signal, needing to install the shooting instrument at the scene observes, also there is error in this mode, and increased the investment of equipment, because the influence of material aspect is easy to generate leakage, particularly easier leakage under the stronger situation of high temperature, high pressure or corrosivity causes the dangerous of personnel and equipment.The contactless fluid level measuring instrument of novel magnetic effect can carry out successional measurement, has overcome the deficiency of existing use measuring instrument, has better practicability, economy and security.
The purpose of this utility model provides a kind of novel level gauging instrument.
The contactless fluid level measuring instrument of novel magnetic effect, it is the principle of utilizing galvanomagnetic effect, be that current impulse forms circumferential pulsed magnetic field and movably axially permanent-magnetic field effect, excitation wave conduit torsional oscillation in waveguide (7), the vibration echo receives with the magnetoelectricity sensor, measure the principle in the cycle of pulsed emission current and echo, measure the displacement of the measured object that drives the permanent magnet motion, carry out the measurement of water level.
Below in conjunction with the concrete structure of the contactless fluid level measuring instrument of description of drawings magnetic effect, see Fig. 3, measuring instrument has a columnar metal shell (2), and the length of housing (2) is approximately identical with the diameter of tested container (1); A communicating pipe (9) is housed in the centre of shell (2), see figure-2, adiabatic ring (4) is housed between communicating pipe (9) and the shell (2), to prevent heat conduction, being equipped with one in communicating pipe (9) can be with the cylindrical float (5) of liquid surface lifting, there is a magnet (6) centre of float (5), cylindrical float (5) is combined into one with magnet (6), with the moving of tested liquid level, the diameter of float (5) is less than communicating pipe the diameter of (9), highly is greater than communicating pipe the diameter of (9) in order to ensure float.For acquired signal, the parallel one group of waveguide (7) that is equipped with around communicating pipe (9), this measuring instrument has adopted three waveguides, and the cable (8) on the waveguide (7) is connected to the corresponding signal process system, carries out signal Processing and reaches the purpose that liquid level shows.
Communicating pipe (9) will be adopted nonmagnetic substance, reverses concussion with the magnetic field energy excitation wave conduit that guarantees magnet, generally can adopt stainless-steel tube, and in order to obtain tested liquid level in communicating pipe (9), communicating pipe (9) must connect with tested container, sees figure-1; Metal shell parts such as (2) all can adopt conventional metal material.
The contactless fluid level measuring instrument housing of figure-1 magnetic effect synoptic diagram
The contactless fluid level measuring instrument assembly drawing of figure-2 magnetic effects
The contactless fluid level measuring instrument structural drawing of figure-3 magnetic effects
(1) is tested container, (2) shell, (3) waveguide mounting hole, (4) adiabatic ring, (5) float, (6) magnet, (7) waveguide, (8) cable, (9) communicating pipe in the accompanying drawings.
Claims (2)
1. contactless fluid level measuring instrument of magnetic effect, by shell (2), adiabatic ring (4), float (5), magnet (6), waveguide (7), communicating pipe formations such as (9), it is characterized in that: be housed a communicating pipe (9) in the centre of meter case (2), an adiabatic ring (4) is arranged between communicating pipe (9) and the shell (2), being equipped with one in communicating pipe (9) can be with the cylindrical float (5) of liquid surface lifting, and there is a magnet (6) centre of float (5); The parallel one group of waveguide (7) that is equipped with around communicating pipe (9).
2. according to the contactless fluid level measuring instrument of claim 1 described magnetic effect, it is characterized in that: cylindrical float (5) and magnet (6) are combined into one, and the diameter of float (5) is less than the diameter of communicating pipe (9), the height diameter greater than communicating pipe (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02209231 CN2532463Y (en) | 2002-04-10 | 2002-04-10 | Magnetic effect non-contact type liquid level measurer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02209231 CN2532463Y (en) | 2002-04-10 | 2002-04-10 | Magnetic effect non-contact type liquid level measurer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2532463Y true CN2532463Y (en) | 2003-01-22 |
Family
ID=33689700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02209231 Expired - Fee Related CN2532463Y (en) | 2002-04-10 | 2002-04-10 | Magnetic effect non-contact type liquid level measurer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2532463Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102419198A (en) * | 2011-09-04 | 2012-04-18 | 长春理工大学 | High-precision real-time laser triangulation method and triangulation device for liquid level |
| CN102564534A (en) * | 2012-01-08 | 2012-07-11 | 秦皇岛华电测控设备有限公司 | Magnetic liquidometer for water level of steam drum |
-
2002
- 2002-04-10 CN CN 02209231 patent/CN2532463Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102419198A (en) * | 2011-09-04 | 2012-04-18 | 长春理工大学 | High-precision real-time laser triangulation method and triangulation device for liquid level |
| CN102564534A (en) * | 2012-01-08 | 2012-07-11 | 秦皇岛华电测控设备有限公司 | Magnetic liquidometer for water level of steam drum |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |