CN108871502A - A kind of external contactless sonar fluid level measuring instrument - Google Patents
A kind of external contactless sonar fluid level measuring instrument Download PDFInfo
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- CN108871502A CN108871502A CN201810832146.0A CN201810832146A CN108871502A CN 108871502 A CN108871502 A CN 108871502A CN 201810832146 A CN201810832146 A CN 201810832146A CN 108871502 A CN108871502 A CN 108871502A
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- measuring instrument
- fluid level
- level measuring
- storage box
- liquid storage
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- 239000012530 fluid Substances 0.000 title claims abstract description 52
- 239000007788 liquid Substances 0.000 claims abstract description 69
- 238000009413 insulation Methods 0.000 claims abstract description 42
- 238000004321 preservation Methods 0.000 claims abstract description 17
- 239000006260 foam Substances 0.000 claims abstract description 16
- 239000000523 sample Substances 0.000 claims abstract description 15
- 238000009529 body temperature measurement Methods 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 230000010412 perfusion Effects 0.000 claims description 25
- 238000005192 partition Methods 0.000 claims description 10
- 238000012545 processing Methods 0.000 claims description 9
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 3
- 229920006328 Styrofoam Polymers 0.000 claims description 3
- 239000006261 foam material Substances 0.000 claims description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000011496 polyurethane foam Substances 0.000 claims description 3
- 239000008261 styrofoam Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 238000006116 polymerization reaction Methods 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 12
- 229920000642 polymer Polymers 0.000 abstract description 8
- 238000009736 wetting Methods 0.000 abstract description 8
- 238000002955 isolation Methods 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 239000003292 glue Substances 0.000 description 9
- 229910052742 iron Inorganic materials 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000012546 transfer Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000002775 capsule Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
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
- G01F23/28—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 the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/296—Acoustic waves
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
The invention discloses a kind of external contactless sonar fluid level measuring instruments,Including sonar fluid level measuring instrument ontology,Transmission line and probe body,This external contactless sonar fluid level measuring instrument structure is simple,Carry reflective grating position measuring cell,Capacitive polymer wetting components and energy gap type temperature measurement element,So that the measurement of liquid level position has enough precision and anti-interference ability,The data flow characteristics model of digital signal controller is reconstructed,It is continuous outside liquid tank,Accurately measure the liquid level of pot liquid,The not liquid in contact tank completely,Realize real isolation measurement,Utilize heat insulation cover structure,Sonar fluid level measuring instrument ontology when high temperature is avoided to be exposed to the sun,Simultaneously,Air bag expands when high temperature,T shape foam slide bar is pushed outward,T shape foam slide bar drives arc heat preservation housing far from sonar fluid level measuring instrument ontology,So that sonar fluid level measuring instrument ontology and insulation cover are detached from.
Description
Technical field
The present invention relates to technical field of liquid level measurement, specially a kind of external contactless sonar fluid level measuring instrument.
Background technique
In shipbuilding, petrochemical industry, military project, new energy, harbour and various environmental monitoring field, need to measure appearance
Liquid level in device, existing level gauging usually require aperture and measure, trouble, when measuring the liquid level of etchant solution, meeting
Corrosion measurement pipeline and equipment, and under hot environment and low temperature environment when measurement liquid level, the precision of measurement is not high, measures simultaneously
Probe can not adapt to measure with the installation of unlike material container, for this purpose, proposing a kind of external contactless sonar level gauging
Instrument.
Summary of the invention
The purpose of the present invention is to provide a kind of external contactless sonar fluid level measuring instruments, to solve above-mentioned background technique
The problem of middle proposition.
To achieve the above object, the present invention provides the following technical solutions：A kind of external contactless sonar fluid level measuring instrument,
Including sonar fluid level measuring instrument ontology, transmission line and probe body, the both ends of the sonar fluid level measuring instrument ontology are fixed to be connected
It is connected to supporting leg, integrally disposed in the probe body to have signal acquisition unit, signal acquisition unit includes that reflective grating position is surveyed
Measure element, capacitive polymer wetting components, energy gap type temperature measurement element and micro-pressure sensing chip, the sonar fluid level measuring instrument
Signal processing unit is provided in ontology, signal processing unit includes digital signal controller and efficient center processor, institute
State capacitive polymer wetting components, energy gap type temperature measurement element, reflective grating position and micro-pressure sensing chip by SPI and
The mode seamless combination of I2C bus, the digital signal controller has task manager including PWM generator, can
Programmable universal timer, discontinuous capture interface decoder, signal acquisition unit and signal processing unit are electrically connected.
Preferably, the model 150-MIPS TMS320F2812 of the digital signal controller, micro-pressure sensing chip
Model NW101.
Preferably, the outer wall of the sonar fluid level measuring instrument ontology is socketed with insulation cover annular in shape, the outside of insulation cover
Wall lower end is fixedly connected by T shape strut with supporting leg, and the side wall of the insulation cover is hollow structure, and the inner ring of insulation cover is by four
A arc heat preservation housing composition, the diameter of a circle and sonar fluid level measuring instrument ontology formed after four arc heat preservation housing closures
Diameter it is equal, arc heat preservation housing be bonded with the outer wall of sonar fluid level measuring instrument ontology, the outer ring inner sidewall of insulation cover passes through
Four groups of support springs are connect with arc heat preservation housing, and one group of support spring includes that there are two third spring, four arc insulation covers
It covers the side wall far from sonar fluid level measuring instrument ontology and is fixedly connected to the vertical one section one end of T shape foam slide bar, T shape foam is sliding
Vertical one section of the other end sliding of bar reaches the outside of insulation cover through the circular hole that insulation cover outer ring side wall opens up and symmetrically connects
There are two one end of air bag, the other end of air bag and the lateral wall of insulation cover are connected, the diameter and T shape foam slide bar of the circular hole
Vertical one section of diameter is equal.
Preferably, the two sides of the air bag are equipped with positioning plate, and positioning plate is fixedly connected with the lateral wall of insulation cover.
Preferably, the lateral wall of the probe body is symmetrically fixedly connected there are two permanent magnet.
Preferably, the lateral wall of the probe body is symmetrically fixedly connected there are two liquid storage box, permanent magnet and liquid storage box phase
Pair lateral wall be fixedly connected, the permanent magnet is hollow structure, and permanent magnet offers several far from the side wall of liquid storage box
Through-hole, the inside of permanent magnet are equipped with nozzle, and one end perforation of nozzle is connected with one end of perfusion tube, and the other end of perfusion tube is successively
It is fixed through the side wall of permanent magnet and liquid storage box to reach the inside of liquid storage box and fixing sleeve is connected to partition, partition and liquid storage box it is interior
Wall is fixedly connected, and the liquid storage box is plugged with T shape push rod far from the side walls of permanent magnet, and T shape push rod is located in liquid storage box
One end is fixedly connected with piston, and the inner wall of piston and liquid storage box is slidably connected, and T shape push rod is located in liquid storage box vertical one section
Side walls are socketed with the first spring, and the both ends of the first spring are connect with piston and T shape push rod respectively, and the inner wall of perfusion tube is light
Sliding surface；
The vertical one section one end of T shape snap-gauge, perfusion tube and T shape card are connected in the groove that the perfusion tube inner sidewall opens up
Plate is cuboid, and the vertical one section of sliding of T shape snap-gauge reaches the outside of liquid storage box through the side wall of perfusion tube and liquid storage box,
The T shape snap-gauge is located at vertical one section of sliding sleeve in liquid storage box and is connected to the second spring connecting with perfusion tube, and second spring is remote
One end from perfusion tube is connect with T shape snap-gauge, and the rear wall screw thread of the liquid storage box is plugged with cock.
Preferably, the distance between the nozzle and through-hole are 2 to 2.5 centimetres.
Preferably, the insulation cover and arc heat preservation housing are all made of polyurethane foam, styrofoam or phenolic foam material
It is made.
Compared with prior art, the beneficial effects of the invention are as follows：
1, reflective grating position measuring cell, capacitive polymer wetting components and energy gap type temperature measurement element are carried, so that
The measurement of liquid level position has enough precision and anti-interference ability, carries out weight to the data flow characteristics model of digital signal controller
Structure, liquid level that is continuous outside liquid tank, accurately measuring pot liquid, the completely not liquid in contact tank, realizes really
Isolation measurement；
2, using heat insulation cover structure, sonar fluid level measuring instrument ontology when high temperature is avoided to be exposed to the sun, meanwhile, when high temperature, gas
Capsule expands, and pushes T shape foam slide bar outward, and T shape foam slide bar drives arc heat preservation housing far from sonar fluid level measuring instrument
Ontology, so that sonar fluid level measuring instrument ontology and insulation cover are detached from, there are a string air holes, are conducive to sonar fluid level measuring instrument sheet
The heat dissipation of body when low temperature, completely cuts off cool exterior air using insulation cover, and insulation cover is designed to hollow structure, lengthens the road of heat transfer
Journey, and because the heat transfer coefficient of air is small, it can effectively avoid cold air to the shadow of sonar fluid level measuring instrument ontology measurement accuracy
It rings；
3, when measuring the liquid level in iron ware, permanent magnet need to be only pull-in on iron ware, probe can be completed
The installation of ontology and iron ware, but when needing to measure the liquid level of other materials container, pulls out T shape snap-gauge, then again to
Interior promotion positioning plate, so that the glue on the left of partition is sprayed on through-hole by nozzle, using glue by permanent magnet and testing container
It links together, this operation can not have to outer carrying glue and carry out adhesion, convenience and high-efficiency, and be adapted to unlike material container
Detection, it is applied widely.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is structure of the invention block diagram；
Fig. 3 is circuit diagram of the present invention；
Fig. 4 is A-A structural schematic diagram in Fig. 1；
Fig. 5 is permanent magnet and liquid storage box composite structure enlarged cross-sectional view.
In figure：Sonar fluid level measuring instrument ontology 1, transmission line 2, probe body 3, permanent magnet 31, liquid storage box 32, partition 33, T
Shape push rod 34, the first spring 35, perfusion tube 36, nozzle 37, through-hole 38, T shape snap-gauge 39, second spring 310, insulation cover 4, third
Spring 41, arc keep the temperature housing 42, T shape foam slide bar 43, positioning plate 44, air bag 45.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-4 is please referred to, the present invention provides a kind of technical solution：
Embodiment 1
Refering to Fig. 2 and Fig. 3, a kind of external contactless sonar fluid level measuring instrument, including sonar fluid level measuring instrument ontology 1,
Transmission line 2 and probe body 3, the both ends of sonar fluid level measuring instrument ontology 1 are fixedly connected to supporting leg, integrate in probe body 3
Be provided with signal acquisition unit, signal acquisition unit include reflective grating position measuring cell, capacitive polymer wetting components,
Energy gap type temperature measurement element and micro-pressure sensing chip, the reachable ± 3.0%RH of the wet precision of capacitive polymer wetting components can gap type
Reachable ± 0.3 DEG C of temperature element temperature measurement accuracy, signal processing unit, signal processing are provided in sonar fluid level measuring instrument ontology 1
Unit includes digital signal controller and efficient center processor, capacitive polymer wetting components, energy gap type temperature measurement element,
Reflective grating position and micro-pressure sensing chip seamless combination, digital signal controller by way of SPI and I2C bus have
Task manager, general programmable timer, discontinuous capture interface decoder including PWM generator, signal acquisition
Unit and signal processing unit are electrically connected, the model 150-MIPS TMS320F2812 of digital signal controller, micro-pressure
The model NW101 of sensing chip.
Embodiment 2
Referring to Fig.1 and Fig. 4, the outer wall of sonar fluid level measuring instrument ontology 1 are socketed with insulation cover 4 annular in shape, 4 He of insulation cover
Arc heat preservation housing 42 is all made of polyurethane foam, styrofoam or phenolic foam material and is made, and the lateral wall lower end of insulation cover 4 is logical
It crosses T shape strut to be fixedly connected with supporting leg, the side wall of insulation cover 4 is hollow structure, and the inner ring of insulation cover 4 is kept the temperature by four arcs
What housing 42 formed, the diameter of a circle that four arc heat preservation housings 42 are formed after being closed is straight with sonar fluid level measuring instrument ontology 1
Diameter is equal, and arc heat preservation housing 42 is bonded with the outer wall of sonar fluid level measuring instrument ontology 1, and the outer ring inner sidewall of insulation cover 4 passes through
Four groups of support springs are connect with arc heat preservation housing 42, and one group of support spring includes there are two third spring 41, and four arcs are protected
Warm housing 42 is fixedly connected to the vertical one section one end of T shape foam slide bar 43 far from the side wall of sonar fluid level measuring instrument ontology 1,
The sliding of vertical one section of the other end of T shape foam slide bar 43 reaches the outer of insulation cover 4 through the circular hole that 4 outer ring side wall of insulation cover opens up
The other end of portion and the one end for being symmetrically connected with two air bags 45, air bag 45 is connect with the lateral wall of insulation cover 4, the diameter of circular hole
Equal with vertical one section of the diameter of T shape foam slide bar 43, air bag 45 is made of the good thermoplastic elastic material of elastic property, gas
The two sides of capsule 45 are equipped with positioning plate 44, and positioning plate 44 is fixedly connected with the lateral wall of insulation cover 4.
Embodiment 3
Referring to Fig. 5, the lateral wall of probe body 3 is symmetrically fixedly connected with that there are two liquid storage box 32, permanent magnet 31 and liquid storage boxes
32 opposite lateral walls are fixedly connected, and permanent magnet 31 is hollow structure, and permanent magnet 31 is offered far from the side wall of liquid storage box 32
Several through-holes 38, the inside of permanent magnet 31 are equipped with nozzle 37, and the distance between nozzle 37 and through-hole 38 are 2 to 2.5 centimetres, spray
One end perforation of mouth 37 is connected with one end of perfusion tube 36, and the other end of perfusion tube 36 is successively fixed to run through permanent magnet 31 and liquid storage
The side wall of box 32 reaches the inside of liquid storage box 32 and fixing sleeve is connected to partition 33, the fixed company of the inner wall of partition 33 and liquid storage box 32
It connects, liquid storage box 32 is plugged with T shape push rod 34 far from the side walls of permanent magnet 31, and T shape push rod 34 is located at one in liquid storage box 32
End is fixedly connected with piston, and the inner wall of piston and liquid storage box 32 is slidably connected, and T shape push rod 34 is located at vertical one in liquid storage box 32
The side walls of section are socketed with the first spring 35, and the both ends of the first spring 35 are connect with piston and T shape push rod 34 respectively, perfusion tube
36 inner wall is smooth surface；
The vertical one section one end of T shape snap-gauge 39, perfusion tube 36 and T shape are connected in the groove that 36 inner sidewall of perfusion tube opens up
Snap-gauge 39 is cuboid, and vertical one section of T shape snap-gauge 39 sliding reaches liquid storage box through the side wall of perfusion tube 36 and liquid storage box 32
32 outside, T shape snap-gauge 39 are located at vertical one section of sliding sleeve in liquid storage box 32 and are connected to the second spring connecting with perfusion tube 36
310, the one end of second spring 310 far from perfusion tube 36 is connect with T shape snap-gauge 39, in the space formed between piston and partition 33
It is inoculated with glue, glue is polyurethane-type glue, and the rear wall screw thread of liquid storage box 32 is plugged with cock, by turning cock, Xiang Qi
Glue is added in inside.
In this case, from hardware and software, sonar fluid level measuring instrument ontology 1 is made to adapt to the measurement environment of multiple types, it is soft
In terms of part, reflective grating position measuring cell, capacitive polymer wetting components and energy gap type temperature measurement element are carried, so that liquid level
Position measurement has enough precision and anti-interference ability, and the data flow characteristics model of digital signal controller is reconstructed, from
Liquid level that is continuous outside liquid tank, accurately measuring pot liquid, the completely not liquid in contact tank, realize really isolation and survey
Amount, hardware aspect, for the working environment for adapting to different temperature, external in sonar fluid level measuring instrument ontology 1 is socketed insulation cover 4,
When avoiding high temperature, sonar fluid level measuring instrument ontology 1 is exposed to the sun, meanwhile, when high temperature, air bag 45 is expanded, and pushes T shape outward
Foam slide bar 43, T shape foam slide bar 43 drives arc heat preservation housing 42 far from sonar fluid level measuring instrument ontology 1, so that sonar liquid
Position measuring instrument ontology 1 is detached from insulation cover 4, and there are a string air holes, are conducive to the heat dissipation of sonar fluid level measuring instrument ontology 1, low
Wen Shi completely cuts off cool exterior air using insulation cover 4, and insulation cover 4 is designed to hollow structure, lengthens the distance of heat transfer, and because of sky
The heat transfer coefficient of gas is small, can effectively avoid influence of the cold air to 1 measurement accuracy of sonar fluid level measuring instrument ontology, in addition,
When measuring the liquid level in iron ware, permanent magnet 31 need to be only pull-in on iron ware, probe body 3 and iron can be completed
The installation of container, but when needing to measure the liquid level of other materials container, T shape snap-gauge 39 is pulled out, is then inwardly pushed again
Positioning plate 44 so that the glue in the left side of partition 33 is sprayed on through-hole 38 by nozzle 37, using glue by permanent magnet 31 with it is to be measured
Container links together, this operation can not have to outer carrying glue and carry out adhesion, convenience and high-efficiency, and be adapted to unlike material appearance
The detection of device, it is applied widely.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of external contactless sonar fluid level measuring instrument, including sonar fluid level measuring instrument ontology (1), transmission line (2) and spy
Head ontology (3), the both ends of the sonar fluid level measuring instrument ontology (1) are fixedly connected to supporting leg, it is characterised in that：The probe
Integrally disposed in ontology (3) to have a signal acquisition unit, signal acquisition unit includes that reflective grating position measuring cell, condenser type are poly-
Fit hygrometric element, energy gap type temperature measurement element and micro-pressure sensing chip, the sonar fluid level measuring instrument ontology (1) is interior to be provided with
Signal processing unit, signal processing unit include digital signal controller and efficient center processor, the condenser type polymerization
Body hygrometric element, energy gap type temperature measurement element, reflective grating position and micro-pressure sensing chip are by way of SPI and I2C bus
Seamless combination, the digital signal controller is with the task manager including PWM generator, general programmable timing
Device, discontinuous capture interface decoder, signal acquisition unit and signal processing unit are electrically connected.
2. the external contactless sonar fluid level measuring instrument of one kind according to claim 1, it is characterised in that：The number letter
The model 150-MIPS TMS320F2812, the model NW101 of micro-pressure sensing chip of number controller.
3. the external contactless sonar fluid level measuring instrument of one kind according to claim 1, it is characterised in that：The sonar liquid
The outer wall of position measuring instrument ontology (1) is socketed with insulation cover annular in shape (4), and the lateral wall lower end of insulation cover (4) passes through T shape strut
It is fixedly connected with supporting leg, the side wall of the insulation cover (4) is hollow structure, and the inner ring of insulation cover (4) is kept the temperature by four arcs
Housing (42) composition, the diameter of a circle and sonar fluid level measuring instrument ontology formed after four arc heat preservation housing (42) closures
(1) diameter is equal, and arc heat preservation housing (42) is bonded with the outer wall of sonar fluid level measuring instrument ontology (1), outside insulation cover (4)
Circle inner sidewall is connect by four groups of support springs with arc heat preservation housing (42), and one group of support spring includes that there are two third springs
(41), four arc heat preservations housing (42) are fixedly connected to T shape foam far from the side wall of sonar fluid level measuring instrument ontology (1) and slide
The vertical one section one end of bar (43), vertical one section of the other end sliding of T shape foam slide bar (43) run through insulation cover (4) outer ring side wall
The circular hole opened up reaches the outside of insulation cover (4) and is symmetrically connected with one end of two air bags (45), the other end of air bag (45)
It is connect with the lateral wall of insulation cover (4), the diameter of the circular hole is equal with vertical one section of the diameter of T shape foam slide bar (43).
4. the external contactless sonar fluid level measuring instrument of one kind according to claim 3, it is characterised in that：The air bag
(45) two sides are equipped with positioning plate (44), and positioning plate (44) is fixedly connected with the lateral wall of insulation cover (4).
5. the external contactless sonar fluid level measuring instrument of one kind according to claim 1, it is characterised in that：The probe is originally
The lateral wall of body (3) is symmetrically fixedly connected there are two permanent magnet (31).
6. the external contactless sonar fluid level measuring instrument of one kind according to claim 5, it is characterised in that：The probe is originally
The lateral wall of body (3) is symmetrically fixedly connected there are two liquid storage box (32), permanent magnet (31) and the opposite lateral wall of liquid storage box (32)
Be fixedly connected, the permanent magnet (31) be hollow structure, and permanent magnet (31) far from liquid storage box (32) side wall offer it is several
The inside of a through-hole (38), permanent magnet (31) is equipped with nozzle (37), and one end perforation of nozzle (37) is connected with perfusion tube (36)
One end, the other end of perfusion tube (36) is successively fixed to reach liquid storage box (32) through the side wall of permanent magnet (31) and liquid storage box (32)
Inside and fixing sleeve be connected to partition (33), partition (33) is fixedly connected with the inner wall of liquid storage box (32), the liquid storage box (32)
Side walls far from permanent magnet (31) are plugged with T shape push rod (34), and it is solid that T shape push rod (34) is located at one end in liquid storage box (32)
Surely it is connected with piston, piston and the inner wall of liquid storage box (32) are slidably connected, and T shape push rod (34) is located in liquid storage box (32) vertically
One section of side walls are socketed with the first spring (35), and the both ends of the first spring (35) connect with piston and T shape push rod (34) respectively
It connects, the inner wall of perfusion tube (36) is smooth surface；
The vertical one section one end of T shape snap-gauge (39), perfusion tube are connected in the groove that perfusion tube (36) inner sidewall opens up
(36) and T shape snap-gauge (39) is cuboid, and the vertical one section of sliding of T shape snap-gauge (39) runs through perfusion tube (36) and liquid storage box
(32) side wall reaches the outside of liquid storage box (32), and the T shape snap-gauge (39) is located at vertical one section of sliding in liquid storage box (32)
It is socketed with the second spring (310) connecting with perfusion tube (36), second spring (310) one end and T shape far from perfusion tube (36)
Snap-gauge (39) connection, the rear wall screw thread of the liquid storage box (32) are plugged with cock.
7. the external contactless sonar fluid level measuring instrument of one kind according to claim 6, it is characterised in that：The nozzle
(37) and the distance between through-hole (38) is 2 to 2.5 centimetres.
8. the external contactless sonar fluid level measuring instrument of one kind according to claim 3, it is characterised in that：The insulation cover
(4) polyurethane foam, styrofoam or phenolic foam material are all made of and is made with arc heat preservation housing (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810832146.0A CN108871502A (en) | 2018-07-26 | 2018-07-26 | A kind of external contactless sonar fluid level measuring instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810832146.0A CN108871502A (en) | 2018-07-26 | 2018-07-26 | A kind of external contactless sonar fluid level measuring instrument |
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| CN108871502A true CN108871502A (en) | 2018-11-23 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110824308A (en) * | 2019-11-13 | 2020-02-21 | 盐城市雷击环保科技有限公司 | High-voltage-resistant alternating-current variable-frequency series resonance test device |
| CN113138000A (en) * | 2020-01-20 | 2021-07-20 | 中国石油天然气股份有限公司 | Microwave non-contact liquid level measurement simulator |
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| CN206540592U (en) * | 2017-01-24 | 2017-10-03 | 北京鼎恒泰科技有限公司 | The ultrasonic liquid level sensor that a kind of use magnet is fixed |
| CN207612781U (en) * | 2017-12-13 | 2018-07-17 | 田佳乐 | A kind of municipal administration gardens trees anti-freeze protection device |
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| CN113138000B (en) * | 2020-01-20 | 2022-11-01 | 中国石油天然气股份有限公司 | Microwave non-contact liquid level measurement simulator |
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Application publication date: 20181123 |