CN202748063U - Liquid flow ultrasonic on-line detection device - Google Patents
Liquid flow ultrasonic on-line detection device Download PDFInfo
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- CN202748063U CN202748063U CN 201220266679 CN201220266679U CN202748063U CN 202748063 U CN202748063 U CN 202748063U CN 201220266679 CN201220266679 CN 201220266679 CN 201220266679 U CN201220266679 U CN 201220266679U CN 202748063 U CN202748063 U CN 202748063U
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Abstract
The utility model provides a liquid flow ultrasonic on-line detection device which comprises an ultrasonic secondary meter, two ultrasonic transducers and a standard measurement straight tube section, wherein the standard measurement straight tube section is a stainless steel tube with known external diameter, wall thickness and material; the two ultrasonic transducers are arranged on the standard measurement straight tube section at an certain horizontal interval; the ultrasound transmitting transducer in the two ultrasonic transducer is used for converting electrical energy into an ultrasonic signal and transmitting the ultrasonic signal into tested flow; the receiving transducer in the two ultrasonic transducers is used for receiving the ultrasonic signal; the ultrasonic signal is amplified by a circuit in the ultrasonic secondary meter connected with the receiving transducer and converted into an electrical signal which represents the flow; and the electrical signal is supplied to the ultrasonic secondary meter for display and flow calculation.
Description
Technical field
The utility model relates to detecting device for liquid flow, relates in particular to a kind of fluid flow ultrasound wave on-line measuring device.
Background technology
The petrochemical industry constituent parts has a large amount of water ga(u)ges that are used for the various bores of inner handing-over and water injecting metering at present.But Off-line calibration mode in the past can not satisfy normal need of production because impact had not only affected producing cost but also high.Generally promoting the use of at present the on-line calibration mode is to use the portable fluid ultrasonic flowmeter to carry out on-line calibration, and its advantage is neither to affect the accuracy of measuring that production (flowmeter does not need dismounting, flow process not to need to switch) can guarantee again flowmeter.
The use of portable ultraphonic flowmeter although being the petrochemical industry constituent parts, the on-line calibration mode of liquid ultrasonic flowmeter solved the difficulty in the metering, owing to need to be satisfied certain requirement, its good measuring accuracy of guarantee.At present China Petrochemical Industry's constituent parts is different in the water ga(u)ge on-the-spot test condition of usefulness, and what have does not reach the condition of calibrating at all, thereby has affected the accuracy of measuring process.
Summary of the invention
The purpose of this utility model is intended to overcome the deficiencies in the prior art, provides a kind of measurement accuracy of time difference method that improves with the fluid flow ultrasound wave on-line measuring device of on-the-spot school liquid flowmeter.
The purpose of this utility model can be achieved by the following technical measures:
This fluid flow ultrasound wave on-line measuring device comprises ultrasonic secondary instrument, two ultrasonic transducers and canonical measure straight length, this canonical measure straight length is external diameter, the stainless-steel tube that wall thickness and material are known, these two ultrasonic transducers are installed on this canonical measure straight length with the certain level spacing, ultrasound transmitting transducer in two ultrasonic transducers converts electrical energy into ultrasonic signal, and it is transmitted in the detected fluid, receiving transducer in two ultrasonic transducers receives this ultrasonic signal, and the circuit amplification in this ultrasonic secondary instrument that is connected with this receiving transducer also is converted to this ultrasonic secondary instrument of electric signal supply that represents flow and shows and calculated flow rate.
The purpose of this utility model also can be achieved by the following technical measures:
This fluid flow ultrasound wave on-line measuring device also comprises the horizontal scale line, and this horizontal scale line is positioned on the horizontal direction of this canonical measure straight length, to adjust the level interval of these two ultrasonic transducers.
This fluid flow ultrasound wave on-line measuring device also comprises position line, and this position line is positioned on the horizontal direction of canonical measure straight length, so that these two ultrasonic transducers are on the same horizontal line.
This fluid flow ultrasound wave on-line measuring device is installed in the back of calibrated flowmeter, and keeps when mounted this position line place plane maintenance level.
This fluid flow ultrasound wave on-line measuring device also comprises the circular scale line, this circular scale line is positioned on the circumferencial direction of this canonical measure straight length, carry out the location of these two ultrasonic transducers by this circular scale line, these two transducers are being passed through on the horizontal cross-section at diameter place.
This fluid flow ultrasound wave on-line measuring device also comprises checks and cleans form and form screw, this is checked and cleans form and is fixed on this canonical measure straight length by this form screw, to observe the clean-up performance of signal reflex point on this canonical measure straight length.
This checks and cleans form by dismantling this form screw dismounting, to clean this signal reflex point on this canonical measure straight length.
With this ultrasonic secondary instrument of mounting means input of external diameter, wall thickness, material and these two ultrasonic transducers of this canonical measure straight length, to calculate the level interval between these two ultrasonic transducers.
Fluid flow ultrasound wave on-line measuring device in the utility model is installed in ultrasonic transducer on the canonical measure straight length, and can realize the accurate location of ultrasonic transducer, guarantees reception and the launch mass of signal, and it is simple in structure, and is easy for installation.Fluid flow ultrasound wave on-line measuring device and detection method in the utility model have following advantage compared with prior art:
1, can realize the accurate location of ultrasonic transducer with the canonical measure pipe of length scale and circular scale line, improve the measurement accuracy of time difference method.
2, prover section is selected the known corrosion resistant 316L stainless steel of wall thickness, the accuracy of the basic parameters such as input material, wall thickness when having guaranteed to measure.
3, have from safeguarding and self-cleaning function.
4, with observation window can periodic observation measuring tube inwall the incrustation situation.
5, can regularly carry out the cleaning of attachment to probe launching site and reflection spot by detachable observation window, guarantee the launch mass of signal.
Description of drawings
Fig. 1 is the structural drawing of the utility model embodiment;
Fig. 2 is the sectional view of the utility model embodiment;
Fig. 3 is the scheme of installation of the ultrasonic transducer when using the Z method to carry out flow detection in another specific embodiment of the utility model.
Embodiment
For above and other purpose of the present utility model, feature and advantage can be become apparent, cited below particularlyly go out preferred embodiment, and cooperate appended graphicly, be described in detail below.
As shown in Figure 1, Fig. 1 is the structural drawing of a specific embodiment of fluid flow ultrasound wave on-line measuring device of the present utility model.This fluid flow ultrasound wave on-line measuring device by position line 1, check and clean form 2, ultrasonic transducer 3, horizontal scale line 4, form screw 5, circular scale line 6, canonical measure straight length 7 and ultrasonic secondary instrument (internal part, among the figure mark) and form.Canonical measure straight length 7 is the known stainless-steel tube of external diameter, wall thickness and material, and ultrasonic transducer 3 is installed on the canonical measure straight length 7.Ultrasonic secondary instrument is connected in ultrasonic transducer 3.Ultrasound transmitting transducer in the ultrasonic transducer 3 converts electrical energy into ultrasonic energy, and it is transmitted in the detected fluid, the ultrasonic signal that receiving transducer in the ultrasonic transducer 3 receives, circuit in ultrasonic secondary instrument amplify and be converted to the electric signal that represents flow to be supplied with ultrasonic secondary instrument and shows and calculate.Detection and the demonstration of flow have so just been realized.The calculating of mounting distance is undertaken by the solidification software in the ultrasonic secondary instrument.
Fig. 2 is the sectional view of a specific embodiment of fluid flow ultrasound wave on-line measuring device of the present utility model, use be the detection that the V method is carried out flow.Position line 1 is positioned on the horizontal direction of canonical measure straight length 7, guarantees that by position line 1 two ultrasonic transducers 3 are on the same horizontal line, guarantees reception and the launch mass of signal.Adjust rapidly the level interval of ultrasonic transducer by the horizontal scale line 4 on the canonical measure straight length 7, this level interval is calculated by ultrasonic secondary instrument.
Fig. 3 is the scheme of installation of the ultrasonic transducer when using the Z method to carry out flow detection in another specific embodiment of fluid flow ultrasound wave on-line measuring device of the present utility model.When adopting the Z method to measure, circular scale line 6 is positioned on the circumferencial direction of canonical measure straight length 7, carry out fast the location of two ultrasonic transducers 3 by circular scale line 6, two ultrasonic transducers 3 are being passed through on the horizontal cross-section at diameter place, the acoustic signals that transmits and receives like this is the strongest, guarantees to transmit and receive signal quality.It is symmetry principle that the Z method is carried out the flow detection Main Basis, must guarantee to transmit and receive the sound wave quality during ultrasonic transducer 3 work, because after each ultrasonic transducer 3 is made, the incident angle of the sound wave that it transmits and receives is fixed, so the accuracy of guarantee measurement result when only guaranteed two ultrasonic transducers are in symmetry when mounted.Install for the Z method.At first determine one of them ultrasonic transducer 3 position A at circular scale line 6, like this can be according to symmetry principle, another symmetric points A that finds at circumference
1(dividing girth equally), then according to the mounting distance that early stage, ultrasonic secondary instrument calculated, find another ultrasonic transducer 3 mounting points B according to horizontal scale line 4, ultrasonic transducer is fixed on this B upward gets final product.
Because canonical measure straight length 7 inwalls have attachment can affect reception and the launch mass of ultrasonic transducer 3 signals, designed at canonical measure straight length 7 and to have checked and to have cleaned form 2, this is checked and cleans form 2 and is fixed on this canonical measure straight length 7 by this form screw 5, the clean-up performance of observation mark locating tab assembly straight length 7 signal reflex points at any time, check and the form screw 5 that cleans on the form 2 can disassemble checking and cleaning form 2 by dismounting, regularly the pipe signal reflection spot is cleared up to ensure signal quality.
Claims (8)
1. fluid flow ultrasound wave on-line measuring device, it is characterized in that, this fluid flow ultrasound wave on-line measuring device comprises ultrasonic secondary instrument, two ultrasonic transducers and canonical measure straight length, this canonical measure straight length is external diameter, the stainless-steel tube that wall thickness and material are known, these two ultrasonic transducers are installed on this canonical measure straight length with the certain level spacing, ultrasound transmitting transducer in two ultrasonic transducers converts electrical energy into ultrasonic signal, and it is transmitted in the detected fluid, receiving transducer in two ultrasonic transducers receives this ultrasonic signal, and the circuit amplification in this ultrasonic secondary instrument that is connected with this receiving transducer also is converted to this ultrasonic secondary instrument of electric signal supply that represents flow and shows and calculated flow rate.
2. a kind of fluid flow ultrasound wave on-line measuring device according to claim 1, it is characterized in that, this fluid flow ultrasound wave on-line measuring device also comprises the horizontal scale line, this horizontal scale line is positioned on the horizontal direction of this canonical measure straight length, to adjust the level interval of these two ultrasonic transducers.
3. a kind of fluid flow ultrasound wave on-line measuring device according to claim 1, it is characterized in that, this fluid flow ultrasound wave on-line measuring device also comprises position line, this position line is positioned on the horizontal direction of canonical measure straight length, so that these two ultrasonic transducers are on the same horizontal line.
4. fluid flow ultrasound wave on-line measuring device according to claim 3 is characterized in that, this fluid flow ultrasound wave on-line measuring device is installed in the back of calibrated flowmeter, and keeps when mounted this position line place plane maintenance level.
5. a kind of fluid flow ultrasound wave on-line measuring device according to claim 1, it is characterized in that, this fluid flow ultrasound wave on-line measuring device also comprises the circular scale line, this circular scale line is positioned on the circumferencial direction of this canonical measure straight length, carry out the location of these two ultrasonic transducers by this circular scale line, these two transducers are being passed through on the horizontal cross-section at diameter place.
6. a kind of fluid flow ultrasound wave on-line measuring device according to claim 1, it is characterized in that, this fluid flow ultrasound wave on-line measuring device also comprises checks and cleans form and form screw, this is checked and cleans form and is fixed on this canonical measure straight length by this form screw, to observe the clean-up performance of signal reflex point on this canonical measure straight length.
7. a kind of fluid flow ultrasound wave on-line measuring device according to claim 6 is characterized in that, this checks and clean form by dismantling this form screw dismounting, to clean this signal reflex point on this canonical measure straight length.
8. a kind of fluid flow ultrasound wave on-line measuring device according to claim 1, it is characterized in that, with this ultrasonic secondary instrument of mounting means input of external diameter, wall thickness, material and these two ultrasonic transducers of this canonical measure straight length, to calculate the level interval between these two ultrasonic transducers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220266679 CN202748063U (en) | 2012-06-07 | 2012-06-07 | Liquid flow ultrasonic on-line detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220266679 CN202748063U (en) | 2012-06-07 | 2012-06-07 | Liquid flow ultrasonic on-line detection device |
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| CN202748063U true CN202748063U (en) | 2013-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220266679 Expired - Fee Related CN202748063U (en) | 2012-06-07 | 2012-06-07 | Liquid flow ultrasonic on-line detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471665A (en) * | 2012-06-07 | 2013-12-25 | 中国石油化工股份有限公司 | Ultrasonic online detection device and method for liquid flow |
-
2012
- 2012-06-07 CN CN 201220266679 patent/CN202748063U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471665A (en) * | 2012-06-07 | 2013-12-25 | 中国石油化工股份有限公司 | Ultrasonic online detection device and method for liquid flow |
| CN103471665B (en) * | 2012-06-07 | 2016-09-21 | 中国石油化工股份有限公司 | Fluid flow ultrasound wave on-line measuring device and detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20170607 |
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| CF01 | Termination of patent right due to non-payment of annual fee |