CN212513237U - Ultrasonic flowmeter practical condition simulation device - Google Patents
Ultrasonic flowmeter practical condition simulation device Download PDFInfo
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- CN212513237U CN212513237U CN202021566945.7U CN202021566945U CN212513237U CN 212513237 U CN212513237 U CN 212513237U CN 202021566945 U CN202021566945 U CN 202021566945U CN 212513237 U CN212513237 U CN 212513237U
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Abstract
The utility model discloses an ultrasonic flowmeter uses operating condition analogue means, including ultrasonic flowmeter, air compressor machine, water tank, circulating pump, standard flowmeter and supporting pipeline and valve, ultrasonic flowmeter comprises flow display device and ultrasonic transducer, ultrasonic transducer set up in standard flowmeter low reaches pipeline, the air compressor machine outlet duct links to each other with the circulating pump export through valve V4, the circulating pump entry with the water tank links to each other, be provided with the liquid of certain water level in the water tank, liquid quilt after the circulating pump goes into the pipeline, get back to behind air compressor machine outlet duct, standard flowmeter and the ultrasonic flowmeter of flowing through in proper order in the water tank, accomplish a circulation. The utility model has the advantages that can be qualitative quantitative flow measurement deviation that causes because of factors such as bubble, particulate matter, temperature in the simulation pipeline to confirm the ultrasonic flowmeter's that corresponds diagnostic data of state, realize the correction to ultrasonic flowmeter field measurement data.
Description
Technical Field
The utility model relates to a discharge monitoring early warning field, especially an ultrasonic flowmeter uses operating condition analogue means field.
Background
At present, when online flow monitoring is carried out on tap water and industrial liquid pipelines, an outer-clamping type ultrasonic flowmeter is generally used for carrying out flow online monitoring on the outer side of the liquid pipeline through clamping an ultrasonic probe, the pipeline does not need to be cut off in the measuring process, and the convenience of flow monitoring can be effectively improved.
The external clamping type ultrasonic flowmeter utilizes the influence of the fluid speed on the speed when ultrasonic waves are transmitted in a fluid medium, and calculates and obtains the fluid flow speed through the propagation time difference existing between forward flow and reverse flow of the ultrasonic waves in the fluid. However, in the process of flowing liquid in a pipeline for a long time, the liquid often cannot keep an ideal high-purity liquid state, and due to the fact that the medium, the pipe wall is rusty, dirt is attached and the like, impurities such as bubbles and particles exist in the liquid, so that the propagation speed of ultrasonic waves is affected when the ultrasonic waves propagate in the fluid medium, and the accuracy of liquid flow measurement is further affected, and a large number of practices show that the deviation is not lower than 0.3% when the flow output of the ultrasonic flow meter is affected by the impurities.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve the not enough of prior art existence, provide an ultrasonic flowmeter and use operating condition analogue means, flow measurement deviation because of factors such as bubble, particulate matter, medium temperature change arouse in the qualitative and quantitative simulation pipeline to confirm the diagnostic data of state that corresponds ultrasonic flowmeter, and then realize the correction to ultrasonic flowmeter field measurement data through diagnostic data in the field usage.
In order to achieve the above purpose, the technical scheme of the utility model is that:
the utility model provides an ultrasonic flowmeter uses operating condition analogue means, a serial communication port, including ultrasonic flowmeter, air compressor machine, water tank, circulating pump, standard flowmeter and supporting pipeline and valve, ultrasonic flowmeter comprises flow display device and ultrasonic transducer, ultrasonic transducer set up in standard flowmeter low reaches pipeline, the air compressor machine outlet duct links to each other with the circulating pump export through valve V4, the circulating pump entry with the water tank links to each other, be provided with the liquid of certain water level in the water tank, liquid quilt after the circulating pump goes into the pipeline, get back to behind air compressor machine outlet duct, standard flowmeter and the ultrasonic transducer of flowing through in proper order in the water tank, accomplish a circulation.
Further, the water tank has the temperature regulation capacity, particles are arranged in liquid of the water tank, the particles are PVC particles, and the particle size of the particles is 2-5 mm. Liquids with different particulate matter concentrations can be obtained through different adding amounts.
Furthermore, the circulating pump is a variable-frequency control solid particle delivery pump, and pipeline flow adjustment is realized through variable-frequency control.
Further, the standard flowmeter is a pipe-section type turbine flowmeter, and the distribution uniformity of bubbles can be improved to a certain extent.
Further, the valve V4 is a regulating valve for regulating the air output of the air compressor to simulate the liquid flow with different bubble densities.
Furthermore, a bypass pipeline is arranged between the standard flowmeter and the ultrasonic flowmeter, and a valve V2 is arranged on the bypass pipeline.
Compared with the prior art, the beneficial effects of the utility model are that:
through adjusting air compressor machine air output, particulate matter addition and water tank temperature etc, the measurement deviation that ultrasonic flowmeter arouses because of bubble and particulate matter in the flow measurement process under the simulation operating mode to confirm the state diagnostic data of the ultrasonic flowmeter who corresponds, can realize the correction to ultrasonic flowmeter measured data, promote ultrasonic flowmeter and measure the precision.
Drawings
Fig. 1 is a schematic diagram of an actual working condition simulation apparatus for an ultrasonic flowmeter according to the present invention;
in the figure: 1-an ultrasonic flow meter; 2, an air compressor; 3-a water tank; 4-circulating water pump; 5-standard flow meter; 6-ultrasonic probe; 7-granules; 8-a main circulation line; 9-a bypass line; valves V1-V4.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
As shown in fig. 1, an ultrasonic flowmeter practical condition simulation device, including ultrasonic flowmeter, air compressor machine 2, water tank 3, circulating pump 4, standard flowmeter 5 and supporting pipeline and valve, ultrasonic flowmeter comprises flow display device 1 and ultrasonic transducer 6, ultrasonic transducer 6 set up in 5 low reaches pipelines of standard flowmeter, 2 outlet ducts of air compressor machine link to each other with 4 exports of circulating pump through valve V4, 4 entrances of circulating pump link to each other with water tank 3, be provided with the liquid of certain water level in the water tank, liquid is by behind the circulating pump 4 pump income pipeline, get back to behind 2 outlet ducts of air compressor machine, standard flowmeter 5 and the ultrasonic transducer 6 of flowing through in proper order in the water tank, accomplish a circulation.
2 outlet duct of air compressor machine through valve V4 with 4 exports of circulating pump link to each other, air compressor machine 2 is used for making the interior bubble that produces of pipeline, valve V4 is the governing valve, changes through governing valve 4 the gas output of air compressor machine 2 simulates the liquid flow of different bubble densities.
In order to simulate the influence of particulate matters and water temperature contained in a fluid on the measurement data of the ultrasonic flowmeter in actual working conditions, the water tank 3 can have a temperature regulation function, the particulate matters 7 are arranged in liquid, the particulate matters 7 are PVC, the particle size of the particulate matters 7 is 2-5mm, and the liquid with different particulate matter concentrations can be simulated through different addition amounts.
The standard flowmeter 5 is a pipe section type turbine flowmeter which is high in precision and free of influence of bubbles and particles, the ultrasonic flowmeter can influence the propagation speed of ultrasonic waves when the ultrasonic waves are propagated in a fluid medium due to the existence of impurities such as the bubbles and the particles in liquid, and accordingly the accuracy of liquid flow measurement is influenced, so that the liquid flow in a pipeline is accurately measured by the standard flowmeter, and the ultrasonic flowmeter is corrected by measuring the flow in real time.
In order to obtain the influence of bubbles, particles, water temperature and the like on the measurement of the ultrasonic flow meter under different flow rates, the circulating pump 4 is a variable-frequency-controlled solid particle delivery pump, and the flow rate of the pipeline is adjusted by adjusting the frequency. Through the result of many times simulation operating condition flow measurement, draw different operating modes (different flow, different bubble density, different particulate matter concentration) and to ultrasonic flowmeter measurement deviation influence curve, load in ultrasonic flowmeter, realize the correction to measured data, promote ultrasonic flowmeter actual measurement's precision.
In some embodiments, a bypass line is further disposed between the standard flow meter 5 and the ultrasonic probe 6, and a valve V2 is disposed on the bypass line. When the valve V2 is closed, the liquid is used for the ultrasonic flowmeter to check and measure, when the valve V2 is opened, the liquid directly flows back to the water tank 3 through the valve V2, at the moment, the valve V1 is closed, and the ultrasonic flowmeter is not in a measuring state.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (6)
1. The utility model provides an ultrasonic flowmeter uses operating condition analogue means, a serial communication port, including ultrasonic flowmeter, air compressor machine, water tank, circulating pump, standard flowmeter and supporting pipeline and valve, ultrasonic flowmeter comprises flow display device and ultrasonic transducer, ultrasonic transducer set up in standard flowmeter low reaches pipeline, the air compressor machine outlet duct links to each other with the circulating pump export through valve V4, the circulating pump entry with the water tank links to each other, be provided with the liquid of certain water level in the water tank, liquid quilt after the circulating pump goes into the pipeline, get back to behind air compressor machine outlet duct, standard flowmeter and the ultrasonic transducer of flowing through in proper order in the water tank, accomplish a circulation.
2. An ultrasonic flow meter practical condition simulation device according to claim 1, wherein the water tank has a temperature regulation capability, and particles are arranged in the liquid in the water tank, the particles are PVC particles, and the particle size of the particles is 2-5 mm.
3. An ultrasonic flow meter application working condition simulation device according to claim 1, wherein the circulation pump is a variable frequency controlled solid particle delivery pump.
4. An ultrasonic flow meter practical condition simulation device according to claim 1, wherein the standard flow meter is a pipe-section type turbine flow meter.
5. An ultrasonic flow meter application working condition simulator as claimed in claim 1, wherein the valve V4 is a regulating valve.
6. An ultrasonic flow meter practical working condition simulation device according to claim 1, wherein a bypass pipeline is further arranged between the standard flow meter and the ultrasonic flow meter, and a valve V2 is arranged on the bypass pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021566945.7U CN212513237U (en) | 2020-07-31 | 2020-07-31 | Ultrasonic flowmeter practical condition simulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021566945.7U CN212513237U (en) | 2020-07-31 | 2020-07-31 | Ultrasonic flowmeter practical condition simulation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212513237U true CN212513237U (en) | 2021-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021566945.7U Active CN212513237U (en) | 2020-07-31 | 2020-07-31 | Ultrasonic flowmeter practical condition simulation device |
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| CN (1) | CN212513237U (en) |
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2020
- 2020-07-31 CN CN202021566945.7U patent/CN212513237U/en active Active
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