CN216954650U - Microminiature temperature and pressure integrated vortex shedding flowmeter - Google Patents
Microminiature temperature and pressure integrated vortex shedding flowmeter Download PDFInfo
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- CN216954650U CN216954650U CN202220745111.5U CN202220745111U CN216954650U CN 216954650 U CN216954650 U CN 216954650U CN 202220745111 U CN202220745111 U CN 202220745111U CN 216954650 U CN216954650 U CN 216954650U
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- 238000001514 detection method Methods 0.000 claims abstract description 67
- 239000012530 fluid Substances 0.000 claims description 17
- 238000009434 installation Methods 0.000 claims description 15
- 238000004513 sizing Methods 0.000 claims description 13
- 239000000523 sample Substances 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000001702 transmitter Effects 0.000 description 1
- 238000004642 transportation engineering Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model discloses a microminiature temperature and pressure integrated vortex shedding flowmeter, which comprises a flowmeter main body, a device mounting cavity, a detection tube and a triangular prism, wherein a pressure detection hole and a flow detection hole are respectively arranged on the drainage surface side and the back flow surface side of the triangular prism, a pressure sensor is arranged on the pressure detection hole, and a flow temperature sensor is arranged on the flow detection hole; a support column is connected to the flow detection hole, one end of the support column is provided with a flow temperature sensor, and the other end of the support column is provided with a vibration sensor; the utility model aims to provide a microminiature temperature and pressure integrated vortex shedding flowmeter, which is suitable for measuring the flow in a small-diameter conveying pipeline, overcomes the field vibration interference through a vibration sensor, and further improves the measurement accuracy.
Description
Technical Field
The utility model relates to flow measurement in the field of industrial metering, in particular to a microminiature temperature and pressure integrated vortex shedding flowmeter.
Background
Along with the development of science and technology, intelligent factories develop rapidly, the demand for energy metering of factories is gradually expanding, for example, the consumption of fluid substances such as oil, gas and water of the factories is accurately detected and controlled, especially, the consumption of the tail ends of pipelines is monitored, and the intelligent energy metering system has guiding significance for energy metering of the factories. The energy transmission pipelines inevitably contain water vapor and the like, and the monitoring of the flow rate of the transmitted substance is influenced. Meanwhile, the pipeline still has vibration during conveying, the flowmeter installed on the pipeline also can vibrate during working, and the like, so that the detection of the medium flow conveyed in the pipeline can be seriously influenced. Meanwhile, most of the flow meters used in the existing market are arranged for pipe diameters above DN25, and the problems of low detection accuracy and the like often occur to small-diameter pipelines from DN8 to DN25 in conventional use.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a micro temperature and pressure integrated vortex shedding flowmeter, which is suitable for measuring the flow in a small-diameter conveying pipeline, overcomes the field vibration interference through a vibration sensor and further improves the measurement accuracy.
The utility model provides a microminiature temperature and pressure integrated vortex shedding flowmeter, which comprises a flowmeter main body, wherein a device installation cavity and a detection pipe communicated with two sections of conveying pipelines are arranged on the flowmeter main body, a triangular prism is fixed in the detection pipe, a pressure detection hole and a flow detection hole are arranged on the detection pipe, a pressure sensor is arranged on the pressure detection hole, and a flow sensor is arranged on the flow detection hole;
the flow sensor is characterized in that a supporting column is connected to the flow detection hole, the supporting column is located in the device installation cavity, a flow sensor is installed at one end of the device installation cavity, a vibration sensor is installed at the other end of the device installation cavity, and a probe of the flow sensor stretches into the detection pipe through the flow detection hole and is located on the back flow surface side of the triangular prism.
Preferably, still be provided with the battery compartment in the flowmeter main part, the battery compartment with the test tube sets up and integrated into one piece in parallel, the battery compartment internal fixation is the battery of flowmeter power supply, be provided with battery compartment lid on the battery compartment.
Preferably, a signal converter and a signal transmitter are arranged in the device installation cavity, the signal converter is in signal connection with the pressure sensor and the flow sensor, a display screen for displaying detection information parameters is arranged on the device installation cavity, and the display screen is obliquely arranged.
Preferably, the detection pipe comprises a reducing pipe, a sizing pipe and an expanding pipe in sequence from a fluid inlet end to a fluid outlet end, the triangular column, the pressure detection hole and the flow detection hole are all arranged in the sizing pipe, connecting threaded pipes are detachably mounted at two ends of the detection pipe, and the connecting threaded pipes are connected with the conveying pipeline; the cross section of the sizing pipe is waist-shaped.
Preferably, the diameter of the conveying pipeline is 8 mm-25 mm.
The microminiature temperature and pressure integrated vortex shedding flowmeter has the beneficial effects that:
1. through increasing vibration sensor, realize detecting the measurement to flowmeter self vibration and pipeline vibration at the during operation, rethread calculation will be rejected because of the numerical value of vibration part parameter in the flow data that flow sensor detected out, obtain real fluid flow in the pipeline, through vibration sensor, overcome on-the-spot vibration interference and self work vibration interference, further improve and measure the precision.
2. Through adopting flow sensor, realize detecting and gathering simultaneously flow and temperature, increase pressure sensor simultaneously, detect and gather pressure, it is more accurate through temperature-pressure compensation flow measurement.
3. Through the design of reducing pipeline etc. the realization detects the flow of small pipe diameter pipeline, detects the precision height.
Drawings
FIG. 1 is a schematic structural view of a microminiature temperature and pressure integrated vortex shedding flowmeter of the present invention,
figure 2 is a cross-sectional view taken along line a-a of figure 1,
fig. 3 is a sectional view taken along line B-B in fig. 1.
Detailed Description
In order to facilitate the understanding of the technical solutions of the present invention for those skilled in the art, the technical solutions of the present invention will be further described with reference to the drawings attached to the specification.
As shown in fig. 1 to fig. 3, the micro-miniature temperature and pressure integrated vortex shedding flowmeter according to the technical scheme of the present invention comprises a flowmeter main body 1, wherein a device installation cavity 2 and a detection pipe 5 communicating two sections of conveying pipelines are arranged on the flowmeter main body 1. The triangular prism 6 is fixed in the detection tube 5, and the detection tube 5 is provided with a pressure detection hole 11 and a flow detection hole 13. The pressure detection hole 11 and the flow rate detection hole 13 are provided on the drainage surface side and the back flow surface side of the triangular prism 6, respectively. The pressure detection hole 11 is provided with a pressure sensor 12, and the flow detection hole 13 is provided with a flow sensor 14.
A supporting column 16 is connected to the flow detection hole 13, the supporting column 16 is located in the device installation cavity 2, a flow sensor 14 is installed at one end of the supporting column, and a vibration sensor 15 is installed at the other end of the supporting column. The flow sensor 14 is installed in the device installation cavity 2 through the supporting column 16, and a probe of the flow sensor extends into the detection tube 5 through the flow detection hole 13 and is positioned on the back flow surface side of the triangular column 6.
Based on the above technical solution, a flow sensor and a temperature sensor are integrated in the flow sensor 14. By arranging the flow sensor 14 and the pressure sensor 12, the flow, the temperature and the pressure can be detected and collected in use, and the flow detection is more accurate through temperature difference compensation.
Among the above-mentioned technical scheme, through the setting of support column 16, the realization is connected flow sensor 14 and vibration sensor 15 as a whole for the vibration that receives on the vibration sensor to flow sensor detects, the vibration that receives on the flow sensor mainly produces in the pipe-line transportation, just so can detect pipeline vibration, and rethread calculation compensates the flow detection error that leads to because of the vibration among the flow sensor, obtains more accurate flow numerical value, ensures to detect the precision.
In the use process of most flow measuring devices, because certain differences exist between the designed temperature, pressure, relative humidity and the like and the actual fluid temperature, pressure, relative humidity and the like, or because the temperature and pressure fluctuation of the fluid is large due to field process conditions, the measured flow cannot truly reflect the actual flow under the working state, and the measurement result can be measured only by compensating the temperature, pressure or humidity and density of the measurement data under the working condition.
Therefore, in the technical scheme, the pressure, the temperature and the flow of the conveyed fluid are detected simultaneously through the pressure sensor 12, the flow sensor 14 and the vibration sensor 15, and the detection accuracy of the flow of the conveyed fluid is ensured through temperature and pressure double compensation. The temperature and pressure dual compensation generally means that the data measured by the instrument is the result under the conditions of 25 ℃ temperature and standard atmospheric pressure, and the temperature and pressure at the measuring site are usually different from the standard, so that the general instrument can measure the temperature and pressure at the measuring site, and then the measurement result is automatically compensated through a calculation formula. If an intelligent flow integrating instrument is adopted for calculation compensation. In the technical scheme, the vibration sensor is used for overcoming the field vibration interference and further improving the measurement accuracy.
In this technical scheme, still be provided with battery compartment 7 on the flowmeter main part 1, battery compartment 7 with the test tube 5 sets up and integrated into one piece in parallel. The battery compartment 7 internal fixation is for the battery of flowmeter power supply, be provided with battery compartment lid 8 on the battery compartment 7. The battery compartment cover 8 can also be opened in the mounted state of the flowmeter body, which facilitates quick battery replacement of the flowmeter during operation. The flowmeter main body 1 is provided with the battery bin and the battery, so that the whole structure of the flowmeter is more compact, and the flowmeter is convenient to install and arrange.
In the technical scheme, a signal converter 10 and a signal emitter 9 are arranged in the device installation cavity 2, and the signal converter 10 is in signal connection with the pressure sensor 12 and the flow sensor 14. And a display screen 3 for displaying detection information parameters is arranged on the device installation cavity 2. The display screen 3 is obliquely arranged, so that parameters can be observed conveniently. The display screen is used for displaying real-time detection numerical values, and inspection personnel can obtain flow information at the pipeline accessory. The signal emitter 9 transmits the detection signal to the upper computer, so that monitoring or dispatching workers can obtain related information conveniently. Especially, some special detection environments are inconvenient for workers to enter or frequently enter, detection data can be uploaded to an upper computer, and safety and rapidness are achieved.
In the present technical solution, the detecting tube 5 comprises a reducing tube 51, a sizing tube 52 and an expanding tube 53 in sequence from the fluid inlet end to the fluid outlet end. The triangular column 6, the pressure detection hole 11 and the flow detection hole 13 are all arranged in the sizing pipe 52. And both ends of the detection pipe 5 can be detachably provided with connecting threaded pipes 4, and the connecting threaded pipes 4 are connected with a conveying pipeline. In the technical scheme, the diameter of the diameter reducing pipe 52 is reduced through the arrangement of the diameter reducing pipe 51 and the diameter expanding pipe 53, so that the flow detection accuracy is improved, and particularly the small flow detection is realized. On the other hand, a transition region is provided for the fluid entering the sizing pipe to be detected, the detected fluid is ensured to be conveyed stably, and the detection precision is improved. In the technical scheme, the cross section of the sizing pipe is waist-shaped, the sizing pipe is the waist-shaped pipe, the sectional area of fluid passing through the sizing pipe is effectively reduced, the flow velocity of the fluid in the pipeline is improved, the vortex street strength is increased, and the detection of small flow is realized.
In the technical scheme, the diameter of the conveying pipeline is 8-25 mm, and the connecting threaded pipe 4 is convenient to connect with a conveying conduit, is suitable for connection and detection of conveying pipes with various calibers, and is convenient and quick to install. In the technical scheme, the pressure sensor 12, the flow sensor 14 and the vibration sensor 15 are arranged at the same time, and the reducing pipe 51, the sizing pipe 52 and the expanding pipe 53 are combined, so that the flowmeter can detect the fluid in the conveying pipeline with the diameter of 8-25 mm, and the detection precision is high.
Technical solution of the utility model the present invention is described above with reference to the accompanying drawings by way of example, and it is to be understood that the specific implementation of the present invention is not limited to the above-described embodiments, and it is within the scope of the present invention to employ various insubstantial modifications of the method concept and technical solution of the present invention, or to directly apply the concept and technical solution of the present invention to other applications without modification.
Claims (5)
1. A microminiature temperature and pressure integrated vortex shedding flowmeter is characterized by comprising a flowmeter main body, wherein a device installation cavity and a detection pipe communicated with two sections of conveying pipelines are arranged on the flowmeter main body, a triangular prism is fixed in the detection pipe, a pressure detection hole and a flow detection hole are arranged on the detection pipe, a pressure sensor is arranged on the pressure detection hole, and a flow sensor is arranged on the flow detection hole;
the flow sensor is characterized in that a supporting column is connected to the flow detection hole, the supporting column is located in the device installation cavity, a flow sensor is installed at one end of the device installation cavity, a vibration sensor is installed at the other end of the device installation cavity, and a probe of the flow sensor stretches into the detection pipe through the flow detection hole and is located on the back flow surface side of the triangular prism.
2. The integrated vortex shedding flowmeter according to claim 1, wherein a battery compartment is further disposed on the flowmeter body, the battery compartment and the detection tube are disposed in parallel and integrally formed, a battery for supplying power to the flowmeter is fixed in the battery compartment, and a battery compartment cover is disposed on the battery compartment.
3. The micro-miniature temperature and pressure integrated vortex shedding flowmeter according to claim 1, wherein a signal converter and a signal emitter are disposed in the device mounting cavity, the signal converter is in signal connection with the pressure sensor and the flow sensor, a display screen for displaying detected information parameters is disposed on the device mounting cavity, and the display screen is disposed in an inclined manner.
4. The microminiature temperature and pressure integrated vortex shedding flowmeter according to claim 1, wherein the detection tube comprises a reducing tube, a sizing tube and an expanding tube in sequence from a fluid inlet end to a fluid outlet end, the triangular prism, the pressure detection hole and the flow detection hole are all arranged in the sizing tube, connecting threaded tubes are detachably mounted at both ends of the detection tube, and the connecting threaded tubes are connected with a conveying pipeline; the cross section of the sizing pipe is waist-shaped.
5. The microminiature temperature and pressure integrated vortex shedding flowmeter according to claim 1, wherein the diameter of the conveying pipeline is 8mm to 25 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220745111.5U CN216954650U (en) | 2022-04-01 | 2022-04-01 | Microminiature temperature and pressure integrated vortex shedding flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220745111.5U CN216954650U (en) | 2022-04-01 | 2022-04-01 | Microminiature temperature and pressure integrated vortex shedding flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216954650U true CN216954650U (en) | 2022-07-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220745111.5U Active CN216954650U (en) | 2022-04-01 | 2022-04-01 | Microminiature temperature and pressure integrated vortex shedding flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216954650U (en) |
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2022
- 2022-04-01 CN CN202220745111.5U patent/CN216954650U/en active Active
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