CN202453046U - Separation type servo liquid level measuring device - Google Patents
Separation type servo liquid level measuring device Download PDFInfo
- Publication number
- CN202453046U CN202453046U CN201220060090XU CN201220060090U CN202453046U CN 202453046 U CN202453046 U CN 202453046U CN 201220060090X U CN201220060090X U CN 201220060090XU CN 201220060090 U CN201220060090 U CN 201220060090U CN 202453046 U CN202453046 U CN 202453046U
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- liquid level
- servo
- wheel hub
- ball
- magnetic
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Abstract
The utility model discloses a separation type servo liquid level measuring device which is characterized by comprising a servo type liquid level meter, a vertical type separation protection pipe, a magnetic floating ball sleeved on the vertical type separation protection pipe, and an iron gravity ball, wherein the servo type liquid level meter comprises a servo motor, a wheel hub assembly provided with an electromagnetic sensor, an encoder and a microprocessor; the wheel hub assembly comprises an inner wheel hub and an outer wheel hub; except the top end of the vertical type separation protection pipe, other pipe body are mounted in a storage tank together with the magnetic floating ball; the magnetic floating ball floats on a liquid level of liquid in the storage tank and can ascend or descend along with the change of the liquid level of the liquid in the storage tank; the iron gravity ball is tied on a measuring steel wire wound on the outer wheel hub and is placed in a pipe cavity of the protection pipe; and a magnetic effect can be generated between the magnetic floating ball and the iron gravity ball. The separation type servo liquid level measuring device has a simple structure and is easy to mount; the servo type liquid level meter can be daily repaired and maintained conveniently; when the servo type liquid level meter needs to be maintained, only the iron gravity ball needs to be pulled out from the protection pipe and then is unfolded.
Description
Technical field
The utility model relates to and a kind ofly can be applicable to high pressure, vacuum or have the servo liquid measurement mechanism in corrosive liquids, the explosive environments.
Background technology
Along with expanding economy, the lifting of industrial automatization, people require also increasingly high to the storage administration of fuel in the raw material of industry.Some poisonous and harmfuls or inflammable and explosive liquid need special canned container to store.The technical requirement of these storage containers is very high, not only requires container to have strict sealing, and characteristic such as require to have anti-high pressure, corrosion-resistant.In the face of so harsh technical conditions, the liquid meter in the special container has just become key issue.Most on the market servo-type liquid level emasuring devices all seem powerless when facing so abominable environment for use at present.Even some servo-type liquid level emasuring device can satisfy request for utilization, also is disposable.Because the measurement float in the above-mentioned liquid level emasuring device just is sealed in the jar by disposable when tank body is produced.If liquid level emasuring device breaks down in the daily use afterwards, especially to measure float and go wrong, these special tank bodies just can not be opened and carry out ME.Make the restriction that the application of servo-type liquid level emasuring device in special tank body received for above-mentioned reasons.
A kind of servo liquid measurement mechanism of the prior art; Comprise servo-type liquid level appearance and measure float; Servo-type liquid level appearance comprises servomotor, is provided with wheel hub assembly, scrambler and the microprocessor of electromagnetic sensor; Wheel hub and outer wheel hub in hub unit comprises, the measurement float hangs and ties up on the measuring steel wire that is wound on outer wheel hub.Servo-type liquid level appearance generally is fixed on the top of tank body, measures float and places in the storage tank, keeps in touch with liquid in the storage tank.Above-mentioned servo-type liquid level emasuring device is based on Archimedes principle; Measure float and be in fluid to be measured surface in the storage tank; Measure float and receive itself gravity and buoyancy of liquid, on measuring steel wire, then show as measurement suffered gravity of float and buoyancy and make a concerted effort, be i.e. tension force on the measuring steel wire.In the servo-type liquid level emasuring device course of work; Variation along with storaging liquid liquid level in the jar; Measuring float will rise thereupon or descend, and the tension force that the measurement float acts on measuring steel wire (finer wire) produces moment on the magnet of wheel hub outside, thereby causes the variation of magnetic flux; The magnetic flux change of wheel hub inter-module causes electromagnetic sensor (Hall element) output voltage signal on the internal magnet to change, and its magnitude of voltage is made comparisons with the reference voltage that is stored among the CPU; The variation of above-mentioned magnetic flux changes the electromagnetic sensor output voltage signal; Reference voltage difference in voltage signal and the microprocessor is non-vanishing at this moment; CPU sends the servomotor enabling signal, and servomotor drives outer wheel hub and does corresponding rotation, makes to measure float with stable stride decline or rising; Noted the rotation step number of servomotor simultaneously by scrambler, it is the liquid level change amount that CPU calculates the displacement of measuring float automatically.Just there is above-mentioned technical matters in this servo-type liquid level emasuring device.
This shows that servo liquid measurement mechanism of the prior art awaits further to improve.
The utility model content
The task of the utility model is to solve the technological deficiency that the servo liquid measurement mechanism exists in the prior art, and a kind of isolated servo liquid measurement mechanism is provided.
Its technical solution is:
A kind of isolated servo liquid measurement mechanism, comprise servo-type liquid level appearance, only be provided with on the top opening vertical isolation pillar, be nested with magnetic ball float and irony gravity ball on vertical isolation pillar; Servo-type liquid level appearance comprises servomotor, is provided with wheel hub assembly, scrambler and the microprocessor of electromagnetic sensor, wheel hub and outer wheel hub in hub unit comprises; Above-mentioned vertical isolation pillar is except that its top; All the other body portion are installed in the storage tank together with the magnetic ball float; The magnetic ball float floats on the liquid level of liquid in the storage tank, and can rise or descend with the variation of liquid level in the storage tank, and irony gravity ball hangs and ties up on the measuring steel wire that is wound on outer wheel hub; And be placed in the tube chamber of pillar, can produce magneticaction between magnetic force ball float and the irony gravity ball.
Above-mentioned vertical isolation pillar adopts magnetic-permeable material to process.
Above-mentioned vertical isolation pillar adopts stainless steel material to process.
Above-mentioned magnetic ball float comprises ball float and is arranged on the alnico magnets on the ball float.
Above-mentioned servo-type liquid level appearance can be installed in the top end opening place of vertical isolation pillar through seal flange.
In the corresponding location free procedure of above-mentioned magnetic ball float changes in liquid level in storage tank; Corresponding change also can take place in the power that vertical direction receives in irony gravity ball; The gravity that irony gravity ball acts on the measuring steel wire produces moment on the magnet of wheel hub outside, causes the variation of magnetic flux, and the variation of magnetic flux changes the electromagnetic sensor output voltage signal; Send servomotor enabling signal by microprocessor this moment; Drive outer wheel hub by servomotor and make corresponding rotation, and drive rising of irony gravity ball or decline, note the rotation step number of servomotor simultaneously by scrambler; When irony gravity ball arrives a certain position of magnetic ball float; Irony gravity ball only receives gravity and tension in vertical direction and reaches balance; Send the servomotor stop signal by microprocessor; Servomotor stops operating, and the displacement that this moment, microprocessor calculated the gravity ball automatically is the liquid level change amount, and further calculates the liquid level in the storage tank.
The utlity model has following useful technique effect:
1, servo liquid measurement mechanism of the prior art is based on Archimedes principle; Measuring float must be on the fluid to be measured surface; Measure float and receive itself gravity and buoyancy of liquid; On measuring steel wire, then show as measurement suffered gravity of float and buoyancy and make a concerted effort, be i.e. tension force on the measuring steel wire.The utility model then is when utilizing the magnetic ball float to fluctuate with liquid level, makes the irony gravity feel of the ball receive the big or small indirectly-acting of its magnetic force on measuring steel wire, to form tension force again.
2, the utility model helps keeping the sealing of storage tank, because the setting of vertical isolation pillar can make critical component and the liquid in the storage tank in the liquid level emasuring device isolate, can be adapted to various corrosive liquids.
3, the utility model is simple in structure, be prone to install, and is convenient to the ordinary maintenance and the maintenance of servo-type liquid level appearance, when servo-type liquid level appearance needs repairing, only needs to extract out in the pillar irony gravity ball promptly deployable.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is illustrated further:
Fig. 1 is the structural principle synoptic diagram of a kind of embodiment of the utility model.
Fig. 2 is a kind of user mode figure of the utility model.
Embodiment
In conjunction with Fig. 1 and Fig. 2, a kind of isolated servo liquid measurement mechanism, comprise servo-type liquid level appearance 1, only be provided with on the top opening vertical isolation pillar 2, be nested with magnetic ball float 3 and irony gravity ball 4 on vertical isolation pillar.Above-mentioned servo-type liquid level appearance comprises servomotor 101, is provided with wheel hub assembly, scrambler 103 and the microprocessor 104 of electromagnetic sensor 102, wheel hub 105 and outer wheel hub 106 in hub unit comprises.Above-mentioned vertical isolation pillar adopts magnetic-permeable material to process, such as selecting for use corrosion resistant stainless steel to process.Above-mentioned magnetic ball float comprises ball float and is arranged on the alnico magnets on the ball float.Above-mentioned vertical isolation pillar is except that its top; It is in the storage tank 7 that all the other body portion are installed in the fluid storage jar together with the magnetic ball float; The magnetic ball float floats on the liquid level of the liquid 8 in the storage tank, and can rise or descend with the variation of liquid level in the storage tank, and irony gravity ball hangs and ties up on the measuring steel wire 5 that is wound on outer wheel hub; Irony gravity ball is placed in the tube chamber of pillar, can produce magneticaction between magnetic force ball float and the irony gravity ball.Above-mentioned servo-type liquid level appearance can be installed in the top end opening place of vertical isolation pillar through seal flange 6.
The principle of work of the utility model roughly is:
Because the magnetic ball float floats on the liquid level of liquid in the storage tank, when liquid level rises, also corresponding sports thereupon of magnetic ball float when descending; Irony gravity ball also changes in the power that vertical direction receives thereupon, and the servomotor in the servo-type liquid level appearance moves up and down through the drive of the measuring steel wire on hub unit irony gravity ball and promptly rises or descend.
The utility model in the course of the work, the gravity that irony gravity ball acts on the steel wire produces moment on the magnet of wheel hub outside, thereby causes the variation of magnetic flux.The magnetic flux change of wheel hub inter-module causes electromagnetic sensor (Hall element) output voltage signal on the internal magnet to change, and its magnitude of voltage is made comparisons with the reference voltage that is stored in the microprocessor (CPU).
When liquid level is static; Irony gravity ball only receives gravity, tension this moment on the vertical direction and reaches equilibrium of forces on a certain position of magnetic ball float, and the voltage signal of electromagnetic sensor output is consistent with the reference voltage among the CPU; Voltage difference is zero, the servomotor transfixion.
When liquid level descended, the magnetic ball float descended with liquid level, and irony gravity ball stress balance is in vertical direction broken.The gravity that irony gravity ball acts on the steel wire produces moment on the magnet of wheel hub outside, causes the variation of magnetic flux.The variation of magnetic flux changes the electromagnetic sensor output voltage signal, and the reference voltage difference among voltage signal and the CPU is non-vanishing at this moment, and CPU sends the servomotor enabling signal.Servomotor drives outer wheel hub and rotates counterclockwise, and irony gravity ball descends with stable stride; The rotation step number of irony gravity ball scrambler record servomotor when descending, the displacement that CPU calculates the gravity ball automatically is the liquid level change amount.
When irony gravity ball moved to a certain position of magnetic ball float, irony gravity ball is stress balance again, and this moment, voltage difference was zero, and CPU sends the servomotor stop signal, and servomotor stops operating.CPU calculates length in the jar of steel wire according to the liquid level change amount, length setting is H2 in its jar, and the height setting of storage tank is H1, and this highly be a known altitude, so can calculate liquid level, and the setting liquid level is H, then H=H1-H2.
When liquid level rose, the magnetic ball float rose with liquid level, and irony gravity ball stress balance is in vertical direction broken.The gravity that irony gravity ball acts on the steel wire produces moment on the magnet of wheel hub outside, causes the variation of magnetic flux.The variation of magnetic flux changes the electromagnetic sensor output voltage signal, and the reference voltage difference among voltage signal and the CPU is non-vanishing at this moment, and CPU sends the servomotor enabling signal.Servomotor drives outer wheel hub and clockwise rotates, and irony gravity ball rises with stable stride; The rotation step number of irony gravity ball scrambler record servomotor when rising, the displacement that CPU calculates the gravity ball automatically is the liquid level change amount.
When irony gravity ball moved to a certain position of magnetic ball float, irony gravity ball is stress balance again, and this moment, voltage difference was zero, and CPU sends the servomotor stop signal, and servomotor stops operating.CPU calculates length in the jar of steel wire according to the liquid level change amount, length setting is H2 in this jar, and the height setting of storage tank is H1, and this highly is a known altitude, so can calculate liquid level, and the setting liquid level is H, then H=H1-H2.
The relevant technologies content of not addressing in the aforesaid way is taked or is used for reference prior art and can realize.
Need to prove that those skilled in the art can also make such or such easy variation pattern under the instruction of this instructions, such as equivalent way, or obvious mode of texturing.Above-mentioned variation pattern all should be within the protection domain of the utility model.
Claims (5)
1. isolated servo liquid measurement mechanism, it is characterized in that comprising servo-type liquid level appearance, only be provided with on the top opening vertical isolation pillar, be nested with magnetic ball float and irony gravity ball on vertical isolation pillar; Servo-type liquid level appearance comprises servomotor, is provided with wheel hub assembly, scrambler and the microprocessor of electromagnetic sensor, wheel hub and outer wheel hub in hub unit comprises; Above-mentioned vertical isolation pillar is except that its top; All the other body portion are installed in the storage tank together with the magnetic ball float; The magnetic ball float floats on the liquid level of liquid in the storage tank, and can rise or descend with the variation of liquid level in the storage tank, and irony gravity ball hangs and ties up on the measuring steel wire that is wound on outer wheel hub; And be placed in the tube chamber of pillar, can produce magneticaction between magnetic force ball float and the irony gravity ball.
2. a kind of isolated servo liquid measurement mechanism according to claim 1 is characterized in that: said vertical isolation pillar adopts magnetic-permeable material to process.
3. a kind of isolated servo liquid measurement mechanism according to claim 2 is characterized in that: said vertical isolation pillar adopts stainless steel material to process.
4. a kind of isolated servo liquid measurement mechanism according to claim 1 is characterized in that: said magnetic ball float comprises ball float and is arranged on the alnico magnets on the ball float.
5. a kind of isolated servo liquid measurement mechanism according to claim 1 is characterized in that: said servo-type liquid level appearance can be installed in the top end opening place of vertical isolation pillar through seal flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220060090XU CN202453046U (en) | 2012-02-23 | 2012-02-23 | Separation type servo liquid level measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220060090XU CN202453046U (en) | 2012-02-23 | 2012-02-23 | Separation type servo liquid level measuring device |
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| Publication Number | Publication Date |
|---|---|
| CN202453046U true CN202453046U (en) | 2012-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201220060090XU Expired - Fee Related CN202453046U (en) | 2012-02-23 | 2012-02-23 | Separation type servo liquid level measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589653A (en) * | 2012-02-23 | 2012-07-18 | 青岛贵和科技有限公司 | Isolated servo liquid level measurement device |
-
2012
- 2012-02-23 CN CN201220060090XU patent/CN202453046U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589653A (en) * | 2012-02-23 | 2012-07-18 | 青岛贵和科技有限公司 | Isolated servo liquid level measurement device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120926 Termination date: 20140223 |