CN107796481A - A kind of magnetic level transmitter - Google Patents
A kind of magnetic level transmitter Download PDFInfo
- Publication number
- CN107796481A CN107796481A CN201710868927.0A CN201710868927A CN107796481A CN 107796481 A CN107796481 A CN 107796481A CN 201710868927 A CN201710868927 A CN 201710868927A CN 107796481 A CN107796481 A CN 107796481A
- Authority
- CN
- China
- Prior art keywords
- level transmitter
- fluid level
- magnetic
- type
- liquid level
- 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.)
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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
- G01F23/22—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 measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/24—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 measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of resistance of resistors due to contact with conductor fluid
-
- 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
- G01F23/72—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 magnetically actuated indicating means
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The embodiments of the invention provide a kind of magnetic level transmitter.Including：Magnetic floating liquid level gauge and fluid level transmitter, the sensor of the fluid level transmitter are anchored on the outside of the main body tube of the magnetic floating liquid level gauge；The fluid level transmitter includes electrically connecting the A types fluid level transmitter formed with connector by the sensor and electrically connects the Type B fluid level transmitter formed with converter by the sensor；Multiple A types fluid level transmitters and 1 Type B fluid level transmitter are axially arranged in order along the liquid level gauge；The lead-in wire terminal of the leading-out terminal of a upper A types fluid level transmitter and next A types fluid level transmitter adjacent thereto electrically connects；The leading-out terminal of the lead-in wire terminal of the Type B fluid level transmitter and the upper one A types fluid level transmitter adjacent thereto electrically connects；The leading-out terminal of the Type B fluid level transmitter electrically connects with control system, and realization continuously displays liquid level signal.The present invention have can the whole liquid level gauge signal of the accurate monitoring display of continuity effect.
Description
Technical field
The present invention relates to level measuring instrument field, more particularly to a kind of magnetic 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 ripple, magnetic turnover panel 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, and it is installed
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 sent to measuring diaphragm both sides；The conversion of various thing positions parameter can be converted into normalized current letter by fluid level transmitter
Number, teletransmission to OPS, for computer centralized displaying or automatically control, the detection control being widely used in various industrial process
System.
But during for longer range level gauging, generally frequently with segmentation fluid level transmitter；For example, for longer
The liquid level gauge of range, single fluid level transmitter is installed respectively in the top of liquid level gauge, middle part and bottom, each level transmitting
Each input 4-20mA current signal, connected control display system will receive three measurement results to device respectively, due to
Three measurement results are relatively independent, it is impossible to which the signal of the whole liquid level gauge of continuous monitoring display, use is very inconvenient, and measurement is accurate
Degree is also relatively poor.
The content of the invention
In view of this, the embodiments of the invention provide a kind of magnetic level transmitter, main purpose is that solve long range liquid
Position measurement uses segmentation fluid level transmitter, it is impossible to realizes continuous level monitoring signal.
To reach above-mentioned purpose, invention broadly provides following technical scheme：
On the one hand, the embodiments of the invention provide a kind of magnetic level transmitter, including：Including magnetic floating liquid level gauge and liquid
Position transmitter, the sensor of the fluid level transmitter are anchored on the outside of the main body tube of the magnetic floating liquid level gauge；The liquid level becomes
Device is sent to include electrically connect the A types fluid level transmitter that forms and electric with converter by the sensor with connector by the sensor
Connect the Type B fluid level transmitter of composition；
Multiple A types fluid level transmitters and 1 Type B fluid level transmitter are axially arranged in order along the liquid level gauge；
The leading-out terminal of a upper A types fluid level transmitter and next A types fluid level transmitter adjacent thereto
Lead-in wire terminal electrically connects；The lead-in wire terminal of the Type B fluid level transmitter and a upper A types fluid level transmitter adjacent thereto go out
Line end electrically connects；The leading-out terminal of the Type B fluid level transmitter electrically connects with control system, and realization continuously displays liquid level signal.
Preferably, the profile of the sensor is L-type, the connector or the converter and the profile are L-type
The turn end electrical connection of sensor.
Preferably, the connector is binding post.
Preferably, the connector, in anti-explosion terminal box, the converter is liquid crystal display watch located at surface
In anti-explosion terminal box.
Preferably, the quantity of the A types fluid level transmitter is 1-5.
Preferably, the magnetic levitation type liquid level is calculated as side-mounted UHZ-A types magnetic fluid level gauge, the fluid level transmitter is bundle
Tie up formula remote transmitter.
Preferably, the measurement range of the magnetic level transmitter is 250mm-20000mm, accuracy is ± 10mm,
Output signal is two-wire system 4-20mA HART protocols, and environment temperature is -40 DEG C~60 DEG C, and explosive-proof grade is intrinsic safety type ib II
CT4。
Preferably, the outlet interface of the Type B fluid level transmitter is internal thread.
Preferably, the liquid level is calculated as segmented, multiple liquid level gauges are sequentially communicated along it axially through communicating pipe.
Preferably, the control system is micro computer industrial intelligent controller.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention for magnetic level transmitter can not the continuous whole liquid level gauge signal of monitoring display technical problem, use
By each A types liquid level gauge output resistance and the series connection of Type B liquid level gauge output resistance and in Type B liquid level gauge converter by the series connection
Resistance is converted to the technological means of ultimate current signal, reaches having for the multistage continuity whole liquid level gauge signal of accurate monitoring display
Beneficial effect.
Brief description of the drawings：
Fig. 1 is the structural representation of magnetic level transmitter provided in an embodiment of the present invention.
Fig. 2 is the circuit diagram of magnetic level transmitter provided in an embodiment of the present invention.
Reference：
1. magnetic floating liquid level gauge, 2. sensors, 3. connectors, the lead-in wire terminal of 301.A type fluid level transmitters, 302.A type liquid
The leading-out terminal of position transmitter, 4. converters, the leading-out terminal of 401.B type fluid level transmitters, 402.B type fluid level transmitters enter line
End, 5. linkers, 6. secure components.
Embodiment
Be further illustrate the present invention to reach the technological means and effect that predetermined goal of the invention is taken, below with compared with
Good embodiment, to embodiment, technical scheme, feature and its effect according to the present patent application, describe in detail as after.Under
State it is bright in multiple embodiments in special characteristic, structure or feature can be combined by any suitable form.
Fluid level transmitter is made up of liquid level sensor and converter two parts, and liquid level sensor is by stainless steel pillar
Some tongue tubes and some resistance form, pillar is fastened on the outside of main body tube (measurement pipe)；Converter is made up of electronic module,
Current signal is converted into data signal, signal adapter is placed in transducer tip or the anti-explosion terminal box of bottom.
Embodiment
As shown in figure 1, a kind of magnetic level transmitter, including magnetic floating liquid level gauge 1 and fluid level transmitter, above-mentioned liquid level become
The sensor 2 of device is sent to be anchored on the outside of the main body tube of above-mentioned magnetic floating liquid level gauge 1；Above-mentioned fluid level transmitter is included by above-mentioned sensing
Device 2 electrically connects the A types fluid level transmitter of composition with connector 3 and electrically connects the Type B formed with converter 4 by the sensor 2
Fluid level transmitter；Multiple above-mentioned A types fluid level transmitters and 1 above-mentioned Type B fluid level transmitter are axially arranged successively along above-mentioned liquid level gauge
Row；A upper leading-out terminal 302 for above-mentioned A types fluid level transmitter and entering for next above-mentioned A types fluid level transmitter adjacent thereto
Line end 301 electrically connects；The lead-in wire terminal 401 of above-mentioned Type B fluid level transmitter and upper one above-mentioned A types fluid level transmitter adjacent thereto
Leading-out terminal 302 electrically connect；The leading-out terminal 402 of above-mentioned Type B fluid level transmitter electrically connects with control system, and realization continuously displays liquid
Position signal.
The design principle of the magnetic level transmitter of the present invention：The resistance 1 that 1st A type liquid level sensor is measured passes through
Its connector sends the 2nd A type liquid level sensor to, and the 2nd A types liquid level sensor is measurement starting point with above-mentioned resistance 1, is continued
Measure second segment liquid level, sensor correspondingly obtains resistance 2, resistance 2 by the connector of the 2nd A type liquid level sensor export to
3rd A type liquid level sensor, the like, the electricity that n-th A types liquid level sensor is exported with the N-1 A types liquid level sensor
Resistance N-1 is starting point, and measured resistance obtains resistance N, and above-mentioned Type B liquid level sensor passes through using above-mentioned resistance N as measurement starting point
Level gauging obtains corresponding resistance N+1, and by the converter of Type B liquid level sensor, final resistance N+1 is converted to correspondingly
Current signal, above-mentioned current signal is the final output current signal of above-mentioned magnetic level transmitter.
It is the circuit diagram of above-mentioned magnetic level transmitter shown in Fig. 2；Wherein, the circuit diagram of figure right half represents N number of sensing
The resistance value that device is measured, schematically illustrate with 4 sensors " series connection " in Fig. 2, the tongue tube in 4 sensors measures 4 respectively
Resistance value, and the input after 4 resistant series as converter；I.e. sensor circuit figure toward left half be above-mentioned converter
Circuit diagram, above-mentioned 4 series resistance signals are converted to final current signal and exported by converter, the transfer principle of converter
For prior art, its circuit diagram is prior art.
In the magnetic level transmitter of the present invention, magnetic floating liquid level gauge measurement liquid level principle is same as the prior art, can be from
Prior art is selected；The sensor measurement resistance principle of fluid level transmitter is same as the prior art, and sensor can be from prior art
From；Connector transmission resistance signal principle is same as the prior art, can be selected from prior art；Converter turns resistance signal
It is same as the prior art to be changed to current signal principle, can be selected from prior art.
As the preferred of above-described embodiment, the principle of the sensor 2 is identical with existing principle, due to need to be by sensor 2
It is anchored in the side wall of liquid level gauge, and explosion-proof box is installed, it is easy to installation and maintenance for convenience, it is preferred that will be above-mentioned
The profile of sensor is designed as L-type, above-mentioned connector or above-mentioned converter and is electrically connected with above-mentioned profile for the turn end of L-type sensor
Connect.
As the preferred of above-described embodiment, above-mentioned connector 3 is binding post, and it is transmission resistance signal that it, which is acted on,；Conversion
The effect of device 4 is that the resistance signal of input is converted into current signal.
As the preferred of above-described embodiment, for above-mentioned connector 3 in anti-explosion terminal box, above-mentioned converter 4 is located at surface
For in the anti-explosion terminal box of liquid crystal display watch, armored cassette type can be selected from prior art, effect is same as the prior art.
As the preferred of above-described embodiment, the quantity of above-mentioned A types fluid level transmitter can be according to the amount of liquid level gauge to be measured
The range of journey and single transmitter is determined, and is preferably 1-5 in the present embodiment.
As the preferred of above-described embodiment, above-mentioned magnetic floating liquid level gauge 1 is side-mounted UHZ-A types magnetic fluid level gauge, above-mentioned
Fluid level transmitter is cluster remote transmitter, and it is more preferable that above-mentioned model supports the use effect；Above-mentioned magnetic floating liquid level gauge 1, sensing
Device 2 and linker 5 are connected by secure component 6.
As the preferred of above-described embodiment, the measurement range of above-mentioned magnetic level transmitter is 250mm-20000mm, accurately
It is two-wire system 4-20mA HART protocols to spend for ± 10mm, output signal, and environment temperature is -40 DEG C~60 DEG C, and explosive-proof grade is this
Peace type ib II CT4.
As the preferred of above-described embodiment, the interface of leading-out terminal 402 of above-mentioned Type B fluid level transmitter is internal thread, and category is existing
Design, effect are more same as the prior art.
As the preferred of above-described embodiment, above-mentioned liquid level is calculated as segmented, and multiple liquid level gauges are along it axially through linker 5
It is sequentially communicated；Multiple short range liquid level gauges can be connected by the way of above by communicating pipe when the range of liquid level gauge is shorter
The liquid level gauge use for being used as a long range is led to；Or the long range liquid level of a prior art entirety customized can be passed through
Meter.
As the preferred of above-described embodiment, above-mentioned control system is micro computer industrial intelligent controller or double measurement instrument
Table, it can reach the purpose of display, regulation and alarm.
The present invention is by each A types liquid level gauge output resistance and the series connection of Type B liquid level gauge output resistance and in Type B liquid level gauge converter
It is interior that the series resistance is converted into ultimate current signal, the whole liquid level gauge letter of the accurate monitoring display of multistage continuity can be achieved
Number.
Part, those skilled in the art can not select from the prior art to the greatest extent in the embodiment of the present invention.
Disclosed above is only the embodiment of the present invention, but protection scope of the present invention is not limited thereto, and is appointed
What those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, all should
It is included within the scope of the present invention.Therefore, protection scope of the present invention should using above-mentioned scope of the claims as
It is accurate.
Claims (10)
1. a kind of magnetic level transmitter, including magnetic floating liquid level gauge and fluid level transmitter, the sensor of the fluid level transmitter
It is anchored on the outside of the main body tube of the magnetic floating liquid level gauge；Characterized in that, the fluid level transmitter is included by the sensor
The A types fluid level transmitter of composition is electrically connected with connector and electrically connects the Type B liquid level formed with converter by the sensor and is become
Send device；
Multiple A types fluid level transmitters and 1 Type B fluid level transmitter are axially arranged in order along the liquid level gauge；
The leading-out terminal of a upper A types fluid level transmitter and next A types fluid level transmitter adjacent thereto enter line
End electrical connection；The leading-out terminal of the lead-in wire terminal of the Type B fluid level transmitter and the upper one A types fluid level transmitter adjacent thereto
Electrical connection；The leading-out terminal of the Type B fluid level transmitter electrically connects with control system, and realization continuously displays liquid level signal.
A kind of 2. magnetic level transmitter according to claim 1, it is characterised in that the profile of the sensor is L-type,
The connector or the converter electrically connect with the profile for the turn end of L-type sensor.
3. a kind of magnetic level transmitter according to claim 1, it is characterised in that the connector is binding post.
4. a kind of magnetic level transmitter according to claim 1, it is characterised in that the connector is located at explosion-proof wiring
In box, the converter is located at surface in the anti-explosion terminal box of liquid crystal display watch.
A kind of 5. magnetic level transmitter according to claim 1, it is characterised in that the number of the A types fluid level transmitter
Measure as 1-5.
6. a kind of magnetic level transmitter according to claim 1, it is characterised in that the magnetic levitation type liquid level is calculated as side dress
Formula UHZ-A type magnetic fluid level gauges, the fluid level transmitter are cluster remote transmitter.
A kind of 7. magnetic level transmitter according to claim 1, it is characterised in that the survey of the magnetic level transmitter
Amount scope is 250mm-20000mm, and accuracy is ± 10mm, and output signal is two-wire system 4-20mA HART protocols, environment temperature
For -40 DEG C~60 DEG C, explosive-proof grade is intrinsic safety type ib II CT4.
8. a kind of magnetic level transmitter according to claim 1, it is characterised in that the Type B fluid level transmitter goes out
Line interface is internal thread.
9. a kind of magnetic level transmitter according to claim 1, it is characterised in that the liquid level is calculated as segmented, more
Individual liquid level gauge is sequentially communicated along it axially through communicating pipe.
10. a kind of magnetic level transmitter according to claim 1, it is characterised in that the control system is micro computer
Industrial intelligent controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710868927.0A CN107796481B (en) | 2017-09-22 | 2017-09-22 | Magnetic liquid level transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710868927.0A CN107796481B (en) | 2017-09-22 | 2017-09-22 | Magnetic liquid level transmitter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107796481A true CN107796481A (en) | 2018-03-13 |
| CN107796481B CN107796481B (en) | 2020-01-07 |
Family
ID=61531932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710868927.0A Active CN107796481B (en) | 2017-09-22 | 2017-09-22 | Magnetic liquid level transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107796481B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108680235A (en) * | 2018-05-17 | 2018-10-19 | 安徽自动化仪表有限公司 | A kind of fluid level transmitter |
| CN110243435A (en) * | 2019-07-22 | 2019-09-17 | 衢州后瑞机械设备有限公司 | A kind of wear-resistant oil-proof liquid level sensor |
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| CN2586959Y (en) * | 2001-10-08 | 2003-11-19 | 蒋红耀 | Water level and temperature sensor |
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| CN104501906A (en) * | 2014-12-30 | 2015-04-08 | 中国石油天然气集团公司 | Series resistance type underground oil-water interface detection system controlled by pressure-controlled switch |
| CN205426296U (en) * | 2016-02-02 | 2016-08-03 | 湖北宏远仪表制造股份有限公司 | Magnetism float levelmeter assembly |
| 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 |
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2017
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| JPS57182619A (en) * | 1981-05-07 | 1982-11-10 | Fukai Kogyo Kk | Float system liquid level indicator |
| DE3632739A1 (en) * | 1985-09-28 | 1987-04-23 | Unimess Messtechnische Geraete | Magnetically operable potentiometer |
| US5103673A (en) * | 1989-09-25 | 1992-04-14 | Moriyama Kogyo Kabushiki Kaisha | Fluid level indicator for small watercraft |
| CN2068230U (en) * | 1989-11-06 | 1990-12-26 | 牡丹江惠龙实业有限公司 | Tubular capacitance sensor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108680235A (en) * | 2018-05-17 | 2018-10-19 | 安徽自动化仪表有限公司 | A kind of fluid level transmitter |
| CN110243435A (en) * | 2019-07-22 | 2019-09-17 | 衢州后瑞机械设备有限公司 | A kind of wear-resistant oil-proof liquid level sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107796481B (en) | 2020-01-07 |
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