CN107990961A - A kind of explosion-proof type magnetostriction liquidometer of measurable multiple liquid levels - Google Patents

A kind of explosion-proof type magnetostriction liquidometer of measurable multiple liquid levels Download PDF

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Publication number
CN107990961A
CN107990961A CN201711437434.8A CN201711437434A CN107990961A CN 107990961 A CN107990961 A CN 107990961A CN 201711437434 A CN201711437434 A CN 201711437434A CN 107990961 A CN107990961 A CN 107990961A
Authority
CN
China
Prior art keywords
unit
explosion
measurement bar
floating ball
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.)
Pending
Application number
CN201711437434.8A
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Chinese (zh)
Inventor
王士兴
陈晓斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xi'an Sen Intelligent Instrument Ltd By Share Ltd
Original Assignee
Xi'an Sen Intelligent Instrument Ltd By Share Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Xi'an Sen Intelligent Instrument Ltd By Share Ltd filed Critical Xi'an Sen Intelligent Instrument Ltd By Share Ltd
Priority to CN201711437434.8A priority Critical patent/CN107990961A/en
Publication of CN107990961A publication Critical patent/CN107990961A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/30Indicating 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
    • G01F23/64Indicating 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
    • G01F23/72Indicating 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

Abstract

The invention discloses a kind of explosion-proof type magnetostriction liquidometer of measurable multiple liquid levels, including liquid level gauge gauge outfit, the electronics storehouse with also communicating for meter gauge outfit is provided with the lower end of liquid level gauge gauge outfit, the lower end in electronics storehouse is connected with measurement bar, the floating ball of multiple and different density is arranged with measurement bar;It is additionally provided with to prevent the clip of float ball falling in the lower end of measurement bar.The present invention is used to carry out teletransmission by multiple communication modes to various tank level automatic measurements, and by measurement result under the inflammable and explosive environment such as oil-gas mining, petrochemical iy produced process.

Description

A kind of explosion-proof type magnetostriction liquidometer of measurable multiple liquid levels
Technical field
The invention belongs to technical field of liquid level measurement, is related to the liquid level gauge for measuring liquid level, especially a kind of measurable The explosion-proof type magnetostriction liquidometer of multiple liquid levels.
Background technology
In the inflammable and explosive environment such as oil and gas exploitation and petrochemical industry, the measurement to oil tank oil mass is mostly using artificial Tank is climbed, ruler is thrown and measures.Measured with the metric system steel band tape measure with weight or with graduated scale, hand-kept reading, Artificial conversion of tabling look-up, finally obtains oil mass data.Not only labor intensity is big for this measuring method, while there are insecurity, Also precision can not be ensured.Condenser type, the measurement of diffused-silicon pressure formula liquid level gauge, since this kind of sensor fluctating moves seriously, measurement is inclined Poor big, long-term working stability is poor.Mechanical float level meter, because often there is steel band stuck phenomenon, so all not obtaining It is widely applied.Radar level gauge, since antenna is easily influenced be subject to condensation water, causes measuring error.Meanwhile above measuring instrument Table can not can only respectively measure oil, water for the storage tank of oil, water stratification single liquid level or Single Medium level gauging.
Magnetostriction liquidometer has that precision is high, can measure multiple liquid levels at the same time, and environmental suitability is strong, the spy such as easy for installation Point, is widely used in level gauging, and gradually instead of other traditional liquid level gauges, becomes the fine work in level gauging.Therefore, A kind of explosion-proof type magnetostriction liquidometer of measurable multiple liquid levels is researched and developed, it is inflammable for solving oil-gas mining, petrochemical industry etc. Explosive environments multi-level automatic measurement is of great significance.
The content of the invention
A kind of the shortcomings that it is an object of the invention to overcome the above-mentioned prior art, there is provided explosion-proof type of measurable multiple liquid levels Magnetostriction liquidometer, it is used for automatic to various tank levels under the inflammable and explosive environment such as oil-gas mining, petrochemical iy produced process Measurement, and measurement result is subjected to teletransmission by multiple communication modes.
The purpose of the present invention is what is be achieved through the following technical solutions:
The explosion-proof type magnetostriction liquidometer of this measurable multiple liquid levels, including liquid level gauge gauge outfit, in liquid level gauge gauge outfit Lower end be provided with the electronics storehouse to communicate with liquid level gauge gauge outfit, the lower end in the electronics storehouse is connected with measurement bar, the measurement bar On be arranged with the floating balls of multiple and different density;It is additionally provided with to prevent the clip of float ball falling in the lower end of measurement bar.
Further, the upper end of above-mentioned measurement bar is connected by installing screw thread with electronics storehouse.
Further, above-mentioned measurement bar is 316 stainless-steel pipes, and Packed politef pipe is set with measurement bar.
Further, above-mentioned floating ball is politef floating ball.
Further, above-mentioned liquid level gauge gauge outfit is designed using blast resistance construction, and liquid level gauge gauge outfit includes flameproof enclosure, in flame proof The front panel of shell is provided with liquid crystal display and magnetic induction button;The installation of the first screw thread is each provided with the both sides of flameproof enclosure Lead wire outlet and the second screw thread installation lead wire outlet.
Further, above-mentioned magnetic induction button is arranged on the lower section of liquid crystal display.
Further, above-mentioned floating ball endoporus surrounding is evenly distributed with multiple magnet that can form permanent magnetic ring-shaped magnetic field;It is described Waveguide filament is provided with measurement bar;The floating ball is moved up and down with liquid level height, runs into periodicity arteries and veins on measurement bar inner waveguide silk After rushing current field, floating ball magnetic field forms faint mechanical oscillation with current field interaction distortion on waveguide filament, passes through Mechanical oscillation time of return, obtains floating ball position, and then obtains liquid level.
Further, electronics storehouse circuit board is provided with above-mentioned electronics storehouse, electronics storehouse circuit board includes processor, described Processor is connected with power management and protective unit, ESD protection unit, TDC units, DC boosting units and pulse current unit; The power management and protective unit also with DC boosting units, pulse current unit, signal gathering unit and signal shaping unit Connection;The TDC units are also associated with the output terminal of signal shaping unit, and the input terminal of signal shaping unit is connected with signal and adopts Collect the output terminal of unit, signal gathering unit input has mechanical wave;The output of DC boosting units is connected to the input of pulse current; Pulse current unit is also associated with feeder line and the waveguide filament from measurement bar (3).
Further, be provided with gauge head circuit plate in above-mentioned liquid level gauge gauge outfit, the gauge head circuit plate include processor and Power Management Unit, signal output unit, wire communication unit, wireless communication unit, display and the button being connected with processor Unit and ESD units;The Power Management Unit is connected with battery;The signal output unit, Landline communication unit and Power Management Unit is respectively connected to terminal plate, and the terminal plate is the terminal plate with carrying out surge protection.
The invention has the advantages that:
(1) present invention use flame-proof type structure design, and measurement bar and floating ball are explosion-proof, waterproof, resistance to by reinforcement preservative treatment High pressure, is adapted to outdoor and field to install and use.
(2) gauge outfit of the present invention possesses liquid crystal display, can live real-time display measurement result, liquid crystal display carries on the back equipped with LED Shown under light, night or light unfavorable condition high-visible.Possesses magnetic induction operation button, on-site maintenance maintenance is convenient.
(3) present invention possesses RS485 communication interfaces, possesses ZigBee wireless communication interfaces, possesses two-wire system 4-20mA electricity Stream output, possess the output of two-way three-wire system 4-20mA electric currents, and suitable communication modes can be flexibly selected according to field condition.
(4) present invention is installed using screw thread, and in-site installation dismounting is flexible.
(5) measurement bar of the present invention and floating ball can bear high pressure (highest 10Mp), available for pressure-bearing tank level gauging.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present invention;
Fig. 2 is the right view of Fig. 1;
Fig. 3 is the gauge head structure schematic diagram of the present invention;
Fig. 4 is circuit function block diagram in the electronics storehouse of the present invention;
Fig. 5 is circuit function block diagram in gauge outfit of the present invention;
Fig. 6 is 4 structure sectional view of floating ball of one of which embodiment of the present invention.
Wherein:1 is gauge outfit;2 be electronics storehouse;3 be measurement bar;4 be floating ball;5 be clip;6 be installation screw thread;1.1 be every Quick-fried shell;1.2 be liquid crystal display;1.3 be magnetic induction button;1.4 install lead wire outlet for the first screw thread;1.5 be the second screw thread Lead wire outlet is installed.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings:
Referring to Fig. 1-3:The explosion-proof type magnetostriction liquidometer of measurable multiple liquid levels of the present invention, including liquid level gauge gauge outfit 1, the electronics storehouse 2 to communicate with liquid level gauge gauge outfit 1 is provided with the lower end of liquid level gauge gauge outfit 1, the lower end in electronics storehouse 2 is connected with measurement Bar 3, the floating ball 4 of multiple and different density is arranged with measurement bar 3;It is additionally provided with to prevent that floating ball 4 is de- in the lower end of measurement bar 3 The clip 5 fallen.
The upper end of measurement bar 3 is connected by installing screw thread 6 with electronics storehouse 2.Measurement bar 3 is 316 stainless-steel pipes, is being measured Packed politef pipe is set with bar 3.
Floating ball 4 is politef floating ball.4 endoporus surrounding of floating ball, which is evenly distributed with, multiple can form permanent magnetic ring-shaped magnetic field Magnet.
As shown in fig. 6, in one of which embodiment of the present invention, floating ball includes sphere 4.1, and set is provided with sphere 4.1 Pipe 4.2, casing 4.2 pass through the centre of sphere of sphere 4.1, and the both ends of casing 4.2 are pierced by sphere 4.1;Casing inside sphere 4.1 Magnet 4.3 is provided with 4.2 perisporiums.Sphere 4.1 is spliced to form up and down by two pieces of hemispheres.Two pieces of hemispheroidal splicing seams of the above Place plane is vertical with the axis of described sleeve pipe 4.2.Two pieces of hemispheres are politef hemisphere.Magnet 3 is to be set in Magnet ring on casing 2.
Waveguide filament is provided with the measurement bar 3 of the present invention;The floating ball 4 is moved up and down with liquid level height, runs into measurement bar On inner waveguide silk after periodicity impulse current magnetic field, 4 magnetic field of floating ball is formed with current field interaction distortion on waveguide filament Faint mechanical oscillation, by mechanical oscillation time of return, obtain floating ball position, and then obtain liquid level.
Liquid level gauge gauge outfit 1 is designed using blast resistance construction, and liquid level gauge gauge outfit 1 includes flameproof enclosure 1.1, in flameproof enclosure 1.1 front panel is provided with liquid crystal display 1.3 and magnetic induction button 1.3;First is each provided with the both sides of flameproof enclosure 1.1 Screw thread installation lead wire outlet 1.4 and second screw thread installation lead wire outlet 1.5.Magnetic induction button 1.3 is arranged under liquid crystal display 1.3 Side.
The electronics storehouse 2 of the present invention is designed using flame proof, and material is 316 stainless steels, and anticorrosive durability is good, with gauge First 1 is installed using screw thread, can be dismantled at any time.Circuit board is housed in electronics storehouse 2, including current excitation drives, signal condition gathers, The functions such as processing calculating.Electronics storehouse circuit board concrete function block diagram in electronics storehouse 2 of the present invention is as shown in Figure 4:Including place Device is managed, processor is connected with power management and protective unit, ESD protection unit, TDC units, DC boosting units and pulse current Unit, wherein power management and protective unit also with DC boosting units, pulse current unit, signal gathering unit and signal shaping Unit connects.TDC units are also associated with the output terminal of signal shaping unit, and the input terminal of signal shaping unit is connected with signal and adopts Collect the output terminal of unit, signal gathering unit input has mechanical wave.The output of DC boosting units is connected to the input of pulse current. Pulse current unit is also associated with feeder line and waveguide filament.
Include carrying out surge protection, liquid crystal display (band backlight) and magnetic induction equipped with circuit board in the liquid level gauge gauge outfit 1 of the present invention Answer button, power management and protection and communication module.Specifically as shown in figure 5, the gauge head circuit plate bag set in liquid level gauge gauge outfit 1 Include processor and the Power Management Unit being connected with processor, signal output unit, wire communication unit, wireless communication list Member, display and push-button unit and ESD units;Power Management Unit is connected with battery;Signal output unit, Landline communication unit And Power Management Unit is respectively connected to terminal plate, terminal plate is the terminal plate with carrying out surge protection.
Measurement bar 3 is designed using flame proof, 316 stainless steels, can high pressure resistant (10Mp maximum), overcoat polyfluortetraethylene pipe And seal reinforcement anti-corrosion, can long period of soaking in mordant liquid.Built-in magnetostrictive waveguide silk, coordinates with floating ball 4 and produces Raw echo-signal, detects floating ball position (i.e. liquid level).4 shell of floating ball uses polytetrafluoroethylene (PTFE) material, and built-in permanent magnet, resists Corrosion, it is high pressure resistant, the floating ball of three different densities can be at most configured at the same time.4 concrete structure of floating ball is:4 endoporus surrounding of floating ball is equal It is even that multiple magnet that can form permanent magnetic ring-shaped magnetic field are distributed with;Waveguide filament is provided with measurement bar 3;Floating ball 4 is with liquid level height Move up and down, run on measurement bar inner waveguide silk after periodicity impulse current magnetic field, 4 magnetic field of floating ball interacts with current field Distortion forms faint mechanical oscillation on waveguide filament, by mechanical oscillation time of return, obtains floating ball position, and then obtain liquid Position height.
Clip 5 is placed in the end of measurement bar 3, does not come off for limiting floating ball 4 from measurement bar 3.Realized by installing screw thread 6 Live flexibly installation, installation is detachable, maintenance convenient to overhaul.
During present invention work, pulse current is motivated on waveguide filament, which produces around it when being propagated along waveguide filament Raw impulse current magnetic field, measurement bar are furnished with float moving up and down, a group permanent-magnet built in float.Work as impulse current magnetic field When meeting with float magnetic field, waveguide filament produces torsional wave, this torsional wave is passed back along waveguide filament with fixed speed and by detecting Mechanism detects.The position that can be accurately determined by the time difference of pulsed current measurement and torsional wave where float, i.e. liquid level Position.
In conclusion magnetostriction liquidometer of the present invention is suitable for the level gauging of high-precision requirement, can also be applied to more The interface location measurement of kind different liquids.

Claims (9)

  1. A kind of 1. explosion-proof type magnetostriction liquidometer of measurable multiple liquid levels, it is characterised in that including liquid level gauge gauge outfit (1), The electronics storehouse (2) to communicate with liquid level gauge gauge outfit (1), the lower end of the electronics storehouse (2) are provided with the lower end of liquid level gauge gauge outfit (1) Measurement bar (3) is connected with, the floating ball (4) of multiple and different density is arranged with the measurement bar (3);In the lower end of measurement bar (3) It is additionally provided with the clip (5) for preventing floating ball (4) from coming off.
  2. 2. the explosion-proof type magnetostriction liquidometer of measurable multiple liquid levels according to claim 1, it is characterised in that described The upper end of measurement bar (3) is connected by installing screw thread (6) with electronics storehouse (2).
  3. 3. the explosion-proof type magnetostriction liquidometer of measurable multiple liquid levels according to claim 1, it is characterised in that described Measurement bar (3) is 316 stainless-steel pipes, and Packed politef pipe is set with measurement bar (3).
  4. 4. the explosion-proof type magnetostriction liquidometer of measurable multiple liquid levels according to claim 1, it is characterised in that described Floating ball (4) is politef floating ball.
  5. 5. the explosion-proof type magnetostriction liquidometer of measurable multiple liquid levels according to claim 1, it is characterised in that described Liquid level gauge gauge outfit (1) is designed using blast resistance construction, and liquid level gauge gauge outfit (1) includes flameproof enclosure (1.1), in flameproof enclosure (1.1) front panel is provided with liquid crystal display (1.3) and magnetic induction button (1.3);Respectively set in the both sides of flameproof enclosure (1.1) It is equipped with the first screw thread installation lead wire outlet (1.4) and the second screw thread installation lead wire outlet (1.5).
  6. 6. the explosion-proof type magnetostriction liquidometer of measurable multiple liquid levels according to claim 5, it is characterised in that described Magnetic induction button (1.3) is arranged on the lower section of liquid crystal display (1.3).
  7. 7. the explosion-proof type magnetostriction liquidometer of measurable multiple liquid levels according to claim 1, it is characterised in that described Floating ball (4) endoporus surrounding is evenly distributed with multiple magnet that can form permanent magnetic ring-shaped magnetic field;It is provided with the measurement bar (3) Waveguide filament;The floating ball (4) moves up and down with liquid level height, runs into periodicity impulse current magnetic field on measurement bar inner waveguide silk Afterwards, floating ball (4) magnetic field forms faint mechanical oscillation with current field interaction distortion on waveguide filament, passes through mechanical oscillation Time of return, obtains floating ball position, and then obtains liquid level.
  8. 8. the explosion-proof type magnetostriction liquidometer of measurable multiple liquid levels according to claim 1, it is characterised in that described Electronics storehouse circuit board is provided with electronics storehouse (2), electronics storehouse circuit board includes processor, and the processor is connected with power supply Management and protective unit, ESD protection unit, TDC units, DC boosting units and pulse current unit;The power management and anti- Shield unit is also connected with DC boosting units, pulse current unit, signal gathering unit and signal shaping unit;The TDC units The output terminal of signal shaping unit is also associated with, the input terminal of signal shaping unit is connected with the output terminal of signal gathering unit, Signal gathering unit input has mechanical wave;The output of DC boosting units is connected to the input of pulse current;Pulse current unit is also It is connected with feeder line and the waveguide filament from measurement bar (3).
  9. 9. the explosion-proof type magnetostriction liquidometer of measurable multiple liquid levels according to claim 1, it is characterised in that described Gauge head circuit plate is provided with liquid level gauge gauge outfit (1), the gauge head circuit plate includes processor and the electricity being connected with processor Source control unit, signal output unit, wire communication unit, wireless communication unit, display and push-button unit and ESD units; The Power Management Unit is connected with battery;The signal output unit, Landline communication unit and Power Management Unit difference Terminal plate is connected to, the terminal plate is the terminal plate with carrying out surge protection.
CN201711437434.8A 2017-12-27 2017-12-27 A kind of explosion-proof type magnetostriction liquidometer of measurable multiple liquid levels Pending CN107990961A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711437434.8A CN107990961A (en) 2017-12-27 2017-12-27 A kind of explosion-proof type magnetostriction liquidometer of measurable multiple liquid levels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711437434.8A CN107990961A (en) 2017-12-27 2017-12-27 A kind of explosion-proof type magnetostriction liquidometer of measurable multiple liquid levels

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CN107990961A true CN107990961A (en) 2018-05-04

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110160608A (en) * 2019-06-11 2019-08-23 北京妙思特仪表有限公司 A kind of magnetostriction liquidometer that signal waveform is shown
CN111457992A (en) * 2020-06-04 2020-07-28 河南菲普斯特仪器仪表有限公司 High-sealing explosion-proof magnetic liquid level meter
WO2021243506A1 (en) * 2020-06-01 2021-12-09 深圳市大疆创新科技有限公司 Liquid level meter, spraying assembly, and unmanned aerial vehicle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110160608A (en) * 2019-06-11 2019-08-23 北京妙思特仪表有限公司 A kind of magnetostriction liquidometer that signal waveform is shown
WO2021243506A1 (en) * 2020-06-01 2021-12-09 深圳市大疆创新科技有限公司 Liquid level meter, spraying assembly, and unmanned aerial vehicle
CN111457992A (en) * 2020-06-04 2020-07-28 河南菲普斯特仪器仪表有限公司 High-sealing explosion-proof magnetic liquid level meter

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