CN206891533U - Ultrasonic level gage - Google Patents
Ultrasonic level gage Download PDFInfo
- Publication number
- CN206891533U CN206891533U CN201720017092.3U CN201720017092U CN206891533U CN 206891533 U CN206891533 U CN 206891533U CN 201720017092 U CN201720017092 U CN 201720017092U CN 206891533 U CN206891533 U CN 206891533U
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- CN
- China
- Prior art keywords
- inductor
- probe
- air
- protection cylinder
- level gage
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- 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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- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model discloses a kind of ultrasonic level gage, the ultrasonic level gage includes protection cylinder and the inductor in the protection cylinder, and the protection cylinder is provided with the corresponding air-supply structure blown of probe to the inductor.The utility model is blown to the probe of inductor by being drilled with air-supply structure on protection cylinder, prevents volatile liquid from being condensed at probe, avoid the inaccuracy of measurement.
Description
Technical field
It the utility model is related to the measurement apparatus of measurement liquid level, espespecially a kind of ultrasonic level gage.
Background technology
Ultrasonic level gage is the digital liquid level instrument controlled by microprocessor.The top of measurement of species is arranged at, is being surveyed
Ultrasonic pulse is sent by inductor (transducer) in amount, sound wave after liquid surface reflects by same inductor receive or ultrasound
Ripple receiver, electric signal is converted into by piezo-electric crystal or magnetostrictive device, and by between the transmitting and reception of sound wave when
Between calculate inductor to the distance on fluid to be measured surface.Due to using non-contacting measurement, measured medium is almost unrestricted,
It can be widely used for the measurement of various liquid and solid material height.But when measuring liquid levels, if the liquid of measurement is to wave
Hair property liquid, when measurement, evaporate in the surface sweating of inductor, inductor cannot steady operation, measure
The numerical fluctuations come, measurement structure are inaccurate.
Utility model content
A kind of the defects of the purpose of this utility model is to overcome prior art, there is provided supersonic liquid level of stably measured
Meter, to be unable to steady operation when solving and measuring volatile liquid in the prior art, the problem of measurement result inaccuracy.
To achieve these goals, the utility model provides a kind of ultrasonic level gage, the ultrasonic level gage bag
Protection cylinder and the inductor in the protection cylinder are included, the probe that the protection cylinder is provided with the corresponding inductor is blown
Air-supply structure.
The beneficial effects of the utility model are：By air-supply structure to constantly blowing at the probe of inductor, prevent from volatilizing
Property liquid condensed on the probe of inductor, and then ultrasonic level gage is stably measured to liquid level, surveyed
The data obtained are also relatively accurate.
Further improvement of the utility model is that the protection cylinder is provided with a wind pushing hole, the air-supply structure and institute
Wind pushing hole connection is stated to be blown to the inductor.
Further improvement of the utility model is that the air-supply structure includes a flexible pipe and is connected to the flexible pipe one
The air-supply arrangement at end.
Further improvement of the utility model is, the wind pushing hole with the probe of the inductor difference in height-
Between 20mm~10mm.
Further improvement of the utility model is, in addition to a display instrument being connected with the inductor, the display
Instrument is connected by a flange with the protection cylinder.
Brief description of the drawings
Fig. 1 is the schematic diagram of ultrasonic level gage of the present utility model.
Embodiment
Below in conjunction with the accompanying drawings, the utility model is described in further detail.Ultrasonic level gage is because its price is low, body
Product is small, in light weight, and the capacity of liquid and the contactless thing position of bulk solid is entered available for industries such as food, chemical industry, semiconductors
Row measurement, monitors and controls available for long-range thing position.Ultrasonic pulse is sent by inductor in the measurements, and sound wave is through liquid surface
Received after reflection by same inductor, electric signal is converted into by piezo-electric crystal or magnetostrictive device, and by the transmitting of sound wave
Time between reception calculates sensor to the distance on fluid to be measured surface.But volatile liquid can be in inductor
At probe condense, inductor cannot normal work, measured value fluctuation.The utility model is by providing wind pushing hole to inductor
Probe position is blown, and prevents volatile liquid from being condensed at probe.Below, structure of the present utility model is entered with reference to accompanying drawing
Row explanation.
Refering to Fig. 1, the utility model is a kind of ultrasonic level gage, and the structure of the ultrasonic level gage includes protection cylinder 3,
The inductor 2 that high-frequency impulse sound wave is provided with cylinder is protected, an air-supply structure is provided with protection cylinder 3.Air-supply structure alignment sense
Answer the probe of device 2 to be blown, volatile liquid is blown away from probe portion, prevent volatile liquid from being condensed at probe, shadow
The normal work of probe is rung, so as to reduce the precision of measurement.
A wind pushing hole is provided with protection cylinder 3, air-supply structure is connected with wind pushing hole, and air is blowed to the probe of inductor
Portion influences the normal work of probe to prevent volatile liquid from being condensed at probe.Air-supply structure includes again to be connected with wind pushing hole
The flexible pipe connect and the air-supply arrangement being connected with the other end of flexible pipe 4.Air-supply arrangement is passed through by being blown into air, air into flexible pipe
Flexible pipe 4 enters in protection cylinder, and alignment inductor is blown.It is preferred that the air-supply arrangement is a fan.
As preferred embodiment of the present utility model, in order to ensure that inductor fully can be blown to by air, also for
The wind pushing hole for preventing from being arranged on protection cylinder hinders the ultrasonic wave that inductor is launched, and the position of the probe of inductor is set into base
Directrix 0, the difference in height of the center line of wind pushing hole and the probe of inductor should be arranged between -20mm~10mm so that visit
Head is within the scope of the wind that wind pushing hole is blown.
A flange is provided with the upper end of protection cylinder 3, the display instrument 1 being connected with inductor 2 is arranged on the upper surface of flange
On, the probe of inductor 2, which sends the data measured after ultrasonic wave, to be directly displayed out on display instrument.
During making, the probe and the spacing of protection cylinder upper surface of inductor are measured, is then offered in the side of protection cylinder
One wind pushing hole, the flexible pipe of a suitable length is intercepted, its one end is connected at the wind pushing hole of protection cylinder, the other end fills with air-supply
Put connection.Air-supply arrangement blows the probe of inductor of the air by flexible pipe into protection cylinder, will hover around probe
Performance property liquid dispels, and prevents that it from condensing at probe, the probe of inductor cannot normal work, measured value fluctuates,
It can not accurately measure.
The utility model is directed at the wind pushing hole at inductor probe position by being opened up in the protection cylinder of ultrasonic level gage, and
The performance liquid to hover around probe is dispelled with air by air-supply structure, prevents it from being condensed at probe, inductor
Probe cannot normal work, measured value fluctuates, it is impossible to accurately measures.
The utility model is described in detail above in association with drawings and Examples, those skilled in the art can
Many variations example is made to the utility model according to the above description.Thus, some details in embodiment should not be formed to this reality
With new restriction, the utility model will be used as the scope of protection of the utility model using the scope that appended claims define.
Claims (2)
1. a kind of ultrasonic level gage, it is characterised in that the ultrasonic level gage includes protection cylinder and located at the protection
Inductor in cylinder, the protection cylinder are provided with the corresponding air-supply structure blown of probe to the inductor；The protection cylinder
A wind pushing hole is provided with, the air-supply structure is connected with the wind pushing hole to be blown to the inductor；
The difference in height of the wind pushing hole and the probe is between -20mm~10mm；
The ultrasonic level gage also includes a display instrument being connected with the inductor, and the display instrument passes through a flange and institute
State protection cylinder connection.
2. ultrasonic level gage as claimed in claim 1, it is characterised in that the air-supply structure includes a flexible pipe and connection
Air-supply arrangement in described flexible pipe one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720017092.3U CN206891533U (en) | 2017-01-06 | 2017-01-06 | Ultrasonic level gage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720017092.3U CN206891533U (en) | 2017-01-06 | 2017-01-06 | Ultrasonic level gage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206891533U true CN206891533U (en) | 2018-01-16 |
Family
ID=61327999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720017092.3U Active CN206891533U (en) | 2017-01-06 | 2017-01-06 | Ultrasonic level gage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206891533U (en) |
-
2017
- 2017-01-06 CN CN201720017092.3U patent/CN206891533U/en active Active
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