CN108680235A - A kind of fluid level transmitter - Google Patents
A kind of fluid level transmitter Download PDFInfo
- Publication number
- CN108680235A CN108680235A CN201810471657.4A CN201810471657A CN108680235A CN 108680235 A CN108680235 A CN 108680235A CN 201810471657 A CN201810471657 A CN 201810471657A CN 108680235 A CN108680235 A CN 108680235A
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- CN
- China
- Prior art keywords
- transmitter
- sensor
- signal
- fluid level
- level
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
- G01F23/64—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements
- G01F23/68—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using electrically actuated indicating means
- G01F23/70—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using electrically actuated indicating means for sensing changes in level only at discrete points
- G01F23/706—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using electrically actuated indicating means for sensing changes in level only at discrete points using opto-electrically actuated indicating means
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Level Indicators Using A Float (AREA)
Abstract
The present invention provides a kind of fluid level transmitter, including magnetic float level indicator, the sensor of transmitter is provided on the outside of the main body tube of magnetic float level indicator, sensor is in the same magnetic coupling region of magnetic float level indicator, by the magnetic fields of the magnet steel in magnetic float level indicator from being attracted, tongue tube is connected on signaling conversion circuit tongue tube in sensor.The solution of the present invention makes the liquid level gauge signal of pick-up more directly and accurate, convenient for computer centralized displaying or automatically controls, and realization detects and controls liquid level at a distance.
Description
Technical field
The present invention relates to liquid levels remote control equipment technical fields, and in particular to a kind of fluid level transmitter.
Background technology
The fields such as petrochemical industry measure the liquid level of liquid in containers medium frequently with liquid level gauge.The type of liquid level gauge has tuning fork
Oscillatory type, maglev type, pressure type, ultrasonic wave, sonar wave, magnetic turning plate and radar etc..Wherein, magnetic floating liquid level gauge is mainly used in
Liquid level in the fields such as PETROLEUM PROCESSING, food processing, chemical industry, water process, pharmacy, electric power, papermaking, metallurgy, ship and boiler is surveyed
Amount.Magnetic float liquidlevel meter has top dress floating ball lever meter and side dress floating ball lever meter, remote liquid level transmitter can be prepared, to realize
The D/A of liquid level signal teletransmission is shown.
Fluid level transmitter is divided into throw-in type, straight-bar type, flange form, screw-type, inductance type, screw-in, float-ball type, installation
Simple easy to use, high sensitivity, response is fast, and accuracy of measurement is high；The operation principle of fluid level transmitter works as measured medium
Two kinds of pressure are passed through two balancing gate pits of height, act on the both sides isolation diaphragm of sensing element, by isolation diaphragm and element
Filling liquid be transmitted to measuring diaphragm both sides；The transformation of various level parameters can be converted into normalized current letter by fluid level transmitter
Number, teletransmission to control room for computer centralized displaying or automatically controls, the detection control being widely used in various industrial process
System.
But when for longer range level gauging, under normal circumstances frequently with segmentation fluid level transmitter；For example, for longer
The liquid level gauge of range installs individual fluid level transmitter, each level transmitting respectively on the top, middle part and lower part of liquid level gauge
Respectively the current signal of input 4-20mA, control display system connected to it will receive three measurement results to device respectively, due to
Three measurement results are relatively independent, cannot continuously monitor the signal for showing entire liquid level gauge, and use is very inconvenient, and it is accurate to measure
Degree is also relatively poor.
Invention content
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of fluid level transmitter, the deficiencies in the prior art are overcome, are made
The more accurate intelligence of liquid level gauge signal for obtaining pick-up, convenient for computer centralized displaying or automatically controls, liquid level is examined in realization at a distance
It surveys and controls so that measure simpler more reliable.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs：
A kind of fluid level transmitter, including magnetic float level indicator, the main body tube outside setting of the magnetic float level indicator
There is the sensor of transmitter, the sensor is in the same magnetic coupling region of magnetic float level indicator, in the sensor
Tongue tube by the magnetic fields of the magnet steel in magnetic float level indicator from being attracted, the tongue tube is connected to signal conversion electricity
On the road.
The resistance signal of the signaling conversion circuit conversion is handled by electron-amplifier, is converted into the 4-20mA of two-wire system
Signal output, the 4-20mA signal output directly inputs electrodynamic element instrument for realizing telemetering, alarm and control.
The signaling conversion circuit is arranged in explosion-proof type terminal box.
Pickup signal at the tongue tube is connected on liquid-level-adjustable controller.
The sensor is photoelectric level signal transducer, the sense that the photoelectric level signal transducer passes through lightwave signal
The variation of liquid level position is answered to be converted into electric signal output.
(3) advantageous effect
An embodiment of the present invention provides a kind of fluid level transmitters.Has following advantageous effect：Electricity is connected to using tongue tube
The form sensor of road replaces passing the form for leading to floating ball transmission signal, and liquid level variable signal can be allow directly to be transformed to
Then electric signal is directly connected on Computer signal input circuit by translation circuit for computer centralized displaying or automatic control
System, realization detect and control liquid level at a distance so that measure simpler more reliable.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram of heretofore described fluid level transmitter；
Fig. 2 is the schematic diagram of signaling conversion circuit of the present invention.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Refering to fig. 1 to shown in Fig. 2, the present invention provides a kind of fluid level transmitter, including magnetic float level indicator 1, and magnetism is floating
2 outside of main body tube of sub- liquid level gauge 1 is provided with the sensor 3 of transmitter, and sensor 3 is in the same of magnetic float level indicator 1
In magnetic coupling region, the tongue tube 4 in sensor 3, from being attracted, is done by the magnetic fields of the magnet steel in magnetic float level indicator 1
Reed pipe 4 is connected on signaling conversion circuit.
Since the sensor 3 of transmitter is partially in the same magnetic couplings system of magnetic float level indicator, sensing is utilized
Tongue tube actuation effect in magnet steel magnetic field in by magnetic float component in device, resistance signal output is converted to by the variation of liquid level,
The signal can be directly used cooperatively with instrument, realize remote survey and control.
Preferably, the resistance signal of signaling conversion circuit conversion is handled by electron-amplifier, is converted into the 4- of two-wire system
The signal of 20mA exports, and the signal output of 4-20mA directly inputs electrodynamic element instrument for realizing telemetering, alarm and control, uses
Magnet steel is at the zero mark of transmitter, and output at this time should be 4mA signals, when magnet steel is placed in full scale mark, this
When output should be 20mA, similarly the corresponding electric signal of corresponding height display, can make to match corresponding liquid level signal in this way, more just
In detection and transmission, for telemetering, controlling alarm；Signaling conversion circuit be arranged in explosion-proof type terminal box 5 so as to circuit into
Row protection so that the conversion of signaling conversion circuit is more stable；Pickup signal at tongue tube is connected to liquid-level-adjustable controller 6
On, electric signal is converted to for directly adjusting liquid-level-adjustable controller by pickup signal so that regulative mode is more direct, signal
Distortion rate is lower；Sensor is photoelectric level signal transducer, the induction liquid that photoelectric level signal transducer passes through lightwave signal
The variation of face position is converted into electric signal output, can be used for detecting some in this way and has magnetic liquid, prevents magnet steel equimagnetic
The magnetization of property object.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, it will be understood by those of ordinary skill in the art that：It still can be to aforementioned each implementation
Technical solution recorded in example is modified or equivalent replacement of some of the technical features；And these modification or
It replaces, the spirit and scope for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution.
Claims (5)
1. a kind of fluid level transmitter, it is characterised in that：Including magnetic float level indicator, the main body tube of the magnetic float level indicator
Outside is provided with the sensor of transmitter, and the sensor is in the same magnetic coupling region of magnetic float level indicator, described
For tongue tube in sensor by the magnetic fields of the magnet steel in magnetic float level indicator from being attracted, the tongue tube is connected to letter
On number conversion circuit.
2. fluid level transmitter as described in claim 1, it is characterised in that：The resistance signal warp of the signaling conversion circuit conversion
Electron-amplifier processing is crossed, the signal output of the 4-20mA of two-wire system is converted into, the signal output of the 4-20mA directly inputs
Electrodynamic element instrument is for realizing telemetering, alarm and control.
3. fluid level transmitter as described in claim 1, it is characterised in that：The signaling conversion circuit is arranged in explosion-proof type wiring
In box.
4. fluid level transmitter as described in claim 1, it is characterised in that：Pickup signal at the tongue tube is connected to adjustable
On fluid level controller.
5. fluid level transmitter as described in claim 1, it is characterised in that：The sensor is photoelectric level signal transducer,
The photoelectric level signal transducer is converted into electric signal output by the variation of the induction liquid level position of lightwave signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810471657.4A CN108680235A (en) | 2018-05-17 | 2018-05-17 | A kind of fluid level transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810471657.4A CN108680235A (en) | 2018-05-17 | 2018-05-17 | A kind of fluid level transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108680235A true CN108680235A (en) | 2018-10-19 |
Family
ID=63806749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810471657.4A Pending CN108680235A (en) | 2018-05-17 | 2018-05-17 | A kind of fluid level transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108680235A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110132378A (en) * | 2019-06-12 | 2019-08-16 | 海丰通航科技有限公司 | Resistance-type flexibility liquid level sensor and its application |
| CN114439677A (en) * | 2021-12-20 | 2022-05-06 | 华能澜沧江水电股份有限公司 | Speed regulator water head calculation compensation system and method based on volute water pressure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5829303A (en) * | 1996-06-19 | 1998-11-03 | Fraser; George David | Method and apparatus for measuring a liquid level using a liquid level gauge having reed switches to determine the position of a magnetic float |
| CN2344759Y (en) * | 1998-09-15 | 1999-10-20 | 湖南株洲化工集团有限责任公司 | Magnetic liquid level gauge |
| CN202229817U (en) * | 2011-09-01 | 2012-05-23 | 大连美天三有电子仪表有限公司 | Liquid level meter with magnetic floater |
| CN205373826U (en) * | 2016-01-20 | 2016-07-06 | 山西晶力园科技有限公司 | Liquid level device |
| CN205843771U (en) * | 2016-05-09 | 2016-12-28 | 启东市恒盛仪表设备有限公司 | A kind of cluster remote transmitter |
| CN107796481A (en) * | 2017-09-22 | 2018-03-13 | 湖北宏远仪表制造股份有限公司 | A kind of magnetic level transmitter |
-
2018
- 2018-05-17 CN CN201810471657.4A patent/CN108680235A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5829303A (en) * | 1996-06-19 | 1998-11-03 | Fraser; George David | Method and apparatus for measuring a liquid level using a liquid level gauge having reed switches to determine the position of a magnetic float |
| CN2344759Y (en) * | 1998-09-15 | 1999-10-20 | 湖南株洲化工集团有限责任公司 | Magnetic liquid level gauge |
| CN202229817U (en) * | 2011-09-01 | 2012-05-23 | 大连美天三有电子仪表有限公司 | Liquid level meter with magnetic floater |
| CN205373826U (en) * | 2016-01-20 | 2016-07-06 | 山西晶力园科技有限公司 | Liquid level device |
| CN205843771U (en) * | 2016-05-09 | 2016-12-28 | 启东市恒盛仪表设备有限公司 | A kind of cluster remote transmitter |
| CN107796481A (en) * | 2017-09-22 | 2018-03-13 | 湖北宏远仪表制造股份有限公司 | A kind of magnetic level transmitter |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110132378A (en) * | 2019-06-12 | 2019-08-16 | 海丰通航科技有限公司 | Resistance-type flexibility liquid level sensor and its application |
| CN114439677A (en) * | 2021-12-20 | 2022-05-06 | 华能澜沧江水电股份有限公司 | Speed regulator water head calculation compensation system and method based on volute water pressure |
| CN114439677B (en) * | 2021-12-20 | 2024-03-26 | 华能澜沧江水电股份有限公司 | Speed regulator water head calculation compensation system and method based on volute water pressure |
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| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181019 |
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| RJ01 | Rejection of invention patent application after publication |