CN112484790B - Flow measuring device - Google Patents
Flow measuring device Download PDFInfo
- Publication number
- CN112484790B CN112484790B CN202011237432.6A CN202011237432A CN112484790B CN 112484790 B CN112484790 B CN 112484790B CN 202011237432 A CN202011237432 A CN 202011237432A CN 112484790 B CN112484790 B CN 112484790B
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- circulating
- pipeline
- fluid
- pipe
- flow
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- 239000012530 fluid Substances 0.000 claims abstract description 67
- 229920003023 plastic Polymers 0.000 claims description 12
- 238000005259 measurement Methods 0.000 claims description 11
- 239000006247 magnetic powder Substances 0.000 claims description 5
- 230000005674 electromagnetic induction Effects 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 description 10
- 230000007246 mechanism Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/20—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
- G01P5/26—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting optical wave
Abstract
The invention discloses a flow measuring device, which comprises a fluid pipeline, wherein at least two radial through holes are formed in the wall of the fluid pipeline, a circulating outer pipe connected to the outside of the fluid pipeline and a circulating inner pipe connected to the inside of the fluid pipeline are respectively arranged on the two radial through holes, the circulating inner pipe is a net pipe with meshes formed in the wall, the circulating outer pipe is a closed pipeline, the two radial through holes, the circulating outer pipe and the circulating inner pipe form a circulating pipeline communicated, a plurality of hollow spheres are arranged in the circulating pipeline, the hollow spheres circulate in the circulating pipeline in the fluid flowing state of the fluid pipeline, and a flow rate sensor for detecting the flow rate of the hollow spheres is arranged near the circulating outer pipe. The flow measuring device does not need to measure the pressure difference in the fluid, does not need to adopt a venturi tube structure, and has the characteristics of simple structure, convenience in use, easiness in processing and manufacturing, rapidness and accuracy in measuring the flow velocity of the fluid and the like.
Description
Technical Field
The invention relates to the technical field of fluid flow velocity measurement, in particular to a flow measuring device.
Background
In the prior art, a venturi-type differential pressure flowmeter is used for measuring the flow rate of fluid, and the differential pressure flowmeter is an instrument for measuring the flow rate. The flow measurement is realized by measuring the pressure difference by utilizing the principle that a certain relationship exists between the pressure difference and the flow rate generated when the fluid flows through the throttling device.
When the existing differential pressure flowmeter measures the fluid flow, the throttling device is mostly arranged in a measured pipeline in a fixed mode, the disassembly is inconvenient, a large amount of sundries carried by fluid are easy to adhere in a throttling channel after the throttling device is used for a long time, metering errors can be increased due to the sundries, and part aging phenomenon can occur after the throttling device is used for a long time, so that the throttling device needs to be disassembled, cleaned and replaced regularly.
Chinese patent CN202010296448.8 discloses a flow measuring mechanism and measuring device, which belongs to the technical field of medical equipment, and comprises a housing, a metering component arranged above the housing and a throttle component movably arranged inside the housing, wherein one side inside the housing is provided with an air inlet cavity, the other side is provided with an air outlet cavity, and the sectional area of the air outlet cavity is larger than that of the air inlet cavity. The embodiment of the invention has the advantages of simple structure and convenient disassembly and assembly, the air flow is introduced from the air inlet cavity and is discharged from the air outlet cavity after passing through the throttling assembly, a certain pressure difference is formed between the air inlet cavity and the air outlet cavity under the action of the throttling assembly, and flow data is obtained by utilizing the metering assembly; after the throttling assembly is used for a period of time, the throttling assembly is taken out from the port of the air outlet cavity by releasing the fixing of the supporting mechanism to the throttling assembly, so that the throttling assembly is cleaned and maintained, and the reduction of metering precision caused by the ageing and adhesion of parts of the throttling assembly is avoided. However, the flow measuring mechanism and the measuring device still measure the flow of the fluid by adopting a pressure difference measuring mode, and the device is still complex in structure and inconvenient to use.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a flow measuring device which does not need to measure the pressure difference in fluid, does not need to adopt a venturi tube structure, has a simple structure, is convenient to use, is easy to process and manufacture, and is quick and accurate in measuring the flow velocity of the fluid.
In order to achieve the above purpose, the technical scheme of the invention is to provide a flow measuring device, the device comprises a fluid pipeline, at least two radial through holes are arranged on the pipe wall of the fluid pipeline, a circulating outer pipe connected to the outside of the fluid pipeline and a circulating inner pipe connected to the inside of the fluid pipeline are respectively arranged on the two radial through holes, the circulating inner pipe is a net pipe with meshes on the pipe wall, the circulating outer pipe is a closed pipe, the two radial through holes, the circulating outer pipe and the circulating inner pipe form a circulating pipeline communicated, a plurality of hollow spheres are arranged in the circulating pipeline, the hollow spheres circulate in the circulating pipeline in the fluid flow state of the fluid pipeline, and a flow velocity sensor for detecting the flow velocity of the hollow spheres is arranged near the circulating outer pipe.
In order to enable the hollow spheres to have a moving interval between the spheres in the flowing process of the outer circulation pipe and the inner circulation pipe, so that the flow rate sensor can count conveniently, and the number of the hollow spheres passing through the flow rate sensor in unit time is preferably designed in such a way that a plurality of ejector pins are arranged on the surface of the hollow spheres. In order to avoid the thimble from being pricked into other spheres, the end part of the thimble can be made into a spherical top.
In order to facilitate detection by electromagnetic signals, the number of hollow spheres passing through the flow rate sensor in unit time is preferably set in such a way that the inner bodies of the hollow spheres are filled with magnetic powder.
In order to facilitate detection by electromagnetic signals, the preferred technical solution is that the hollow sphere is made of magnetic plastic hollow sphere made of plastic containing magnetic powder.
In order to facilitate simplifying the whole structure of the device and facilitating the processing and manufacturing of the circulating pipeline, a further preferable technical scheme is that the circulating outer pipe and the circulating inner pipe are U-shaped pipes.
In order to facilitate more visual detection and observation of the flow rate of the fluid, and simultaneously to prevent the corrosion of the fluid to the circulating pipe, a further preferable technical scheme is that the circulating outer pipe is a glass pipe or a transparent plastic pipe, and the circulating inner pipe is a plastic net pipe or a stainless steel net pipe.
In order to facilitate the detection of the pressure and temperature inside the fluid, a further preferred solution is to provide a pressure sensor and/or a temperature sensor on the inner wall of the fluid conduit.
In order to simplify the structure of the sensor, reduce the cost of the sensor and prolong the service life of the sensor, a further preferable technical scheme is that the flow velocity sensor is a photoelectric sensor or an electromagnetic induction sensor.
In order to convert the flow information, pressure information and temperature information in the three-dimensional pipeline monitored by the sensor into identifiable, outputtable and storable information, and measure and control the flow state of the fluid in the fluid pipeline according to the information, the further preferred technical scheme is that the flow velocity sensor, the pressure sensor and/or the temperature sensor are connected with a controller.
In order to facilitate the connection of the outer circulation pipe and the inner circulation pipe to the fluid pipeline, and simultaneously, the leakage of fluid in the fluid pipeline can be avoided, a further preferable technical scheme is that a connecting pipe is inserted in the radial through hole, two ends of the outer circulation pipe and the inner circulation pipe are respectively connected with two ends of the connecting pipe, and a sealing element is filled between the connecting pipe and the radial through hole.
The flow measuring device has the advantages and beneficial effects that the flow measuring device does not need to measure the pressure difference in the fluid, does not need to adopt a venturi tube structure, and has the characteristics of simple structure, convenience in use, easiness in processing and manufacturing, rapidness and accuracy in measuring the flow velocity of the fluid and the like. Because the circulation inner pipe is a net-shaped structure pipe, the hollow ball arranged in the circulation inner pipe can flow along with the fluid under the driving of the fluid flow force in the fluid pipeline. The hollow balls are also arranged on the circulating outer tube, when the hollow balls in the circulating inner tube flow into the circulating outer tube through the tube through holes, the hollow balls in the circulating outer tube are pushed to flow, and flow into the circulating inner tube through the tube through holes, so that a circulation formed by the hollow balls in the circulating inner tube, guan Bikong, the circulating outer tube, guan Bikong and the circulating inner tube is formed, then the number of the hollow balls flowing through the flow sensor in unit time is detected through the flow sensor arranged outside the fluid pipeline, and the number is converted into the flow rate of the fluid through the controller. The device is used for detecting the flow of the fluid in the pipeline, the traditional detection mode of detecting the flow of the fluid by adopting the venturi tube through a pressure difference mode is changed, the structure is greatly simplified compared with the detection structure of the venturi tube, when the flow rate of the fluid in the fluid pipeline is not required to be detected, the circulating outer tube and the flow sensor can be removed, the wall hole of the pipeline is blocked by the blocking, and meanwhile, the flow of the fluid in the pipeline is not blocked.
Drawings
FIG. 1 is a schematic view of a flow measuring device according to the present invention.
In the figure: 1. a fluid conduit; 2. a radial through hole; 3. a circulating outer tube; 4. a circulation inner tube; 5. a mesh; 6. a hollow sphere; 7. a flow rate sensor; 8. a thimble; 9. pressure sensors and/or temperature sensors.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings and examples. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.
As shown in fig. 1, the invention is a flow measuring device, the device comprises a fluid pipeline 1, at least two radial through holes 2 are arranged on the pipe wall of the fluid pipeline 1, a circulating outer pipe 3 connected to the outside of the fluid pipeline 1 and a circulating inner pipe 4 connected to the inside of the fluid pipeline 1 are respectively arranged on the two radial through holes 2, the circulating inner pipe 4 is a net pipe with meshes 5 arranged on the pipe wall, the circulating outer pipe 3 is a closed pipeline, the two radial through holes 2, the circulating outer pipe 3 and the circulating inner pipe 4 form a circulating pipeline communicated, a plurality of hollow spheres 6 are arranged in the circulating pipeline, the hollow spheres 6 circulate in the circulating pipeline in the fluid flowing state of the fluid pipeline, and a flow rate sensor 7 for detecting the flowing speed of the hollow spheres 6 is arranged near the circulating outer pipe 3.
In order to make the hollow spheres 6 have a moving interval between spheres in the process of flowing in the outer circulation pipe 3 and the inner circulation pipe 4, so that the flow rate sensor can count the number of the hollow spheres passing through the flow rate sensor in unit time, the preferred embodiment of the invention is that a plurality of ejector pins 8 are arranged on the surface of the hollow spheres 6. In order to avoid the thimble 8 from being pricked into other spheres, the end part of the thimble 8 can be made into the top of a sphere.
In order to facilitate detection by electromagnetic signals, the number of hollow spheres 6 passing through the flow rate sensor 7 per unit time, and the preferred embodiment of the present invention is that the hollow spheres 6 are internally filled with magnetic powder.
In order to facilitate detection by electromagnetic signals of the number of hollow spheres passing through the flow sensor per unit time, a preferred embodiment of the invention is also a magnetic plastic hollow sphere 6 made of plastic containing magnetic particles in said hollow sphere 6.
In order to simplify the whole structure of the device and facilitate the processing and manufacturing of the circulating pipeline, a further preferred embodiment of the invention is that the circulating outer pipe 3 and the circulating inner pipe 4 are U-shaped pipes.
In order to facilitate more visual detection and observation of the flow rate of the fluid and prevent corrosion of the circulation tube by the fluid, a further preferred embodiment of the present invention is that the circulation outer tube 3 is a glass tube or a transparent plastic tube, and the circulation inner tube 4 is a plastic net tube or a stainless steel net tube.
In order to facilitate the detection of the pressure, temperature inside the fluid, a further preferred embodiment of the invention is also provided with a pressure sensor and/or a temperature sensor 9 on the inner wall of the fluid conduit 1.
In order to simplify the structure of the sensor, reduce the cost of the sensor and increase the service life of the sensor, a further preferred embodiment of the present invention is that the flow rate sensor 7 is a photoelectric sensor or an electromagnetic induction sensor.
In order to convert the flow information, pressure information and temperature information in the three-dimensional pipeline monitored by the sensor into identifiable, outputtable and storable information and measure and control the flow state of the fluid in the fluid pipeline according to the information, the flow rate sensor 7, the pressure sensor and/or the temperature sensor 9 are connected with a controller (not shown in the figure).
In order to facilitate the connection of the outer circulation tube 3 and the inner circulation tube 4 to the fluid pipe 1 and at the same time avoid fluid leakage in the fluid pipe, a further preferred embodiment of the present invention further comprises connecting tubes (not shown) inserted into the radial through holes 2, wherein the two ends of the outer circulation tube 3 and the inner circulation tube 4 are respectively connected with the two ends of the connecting tubes, and sealing elements are filled between the connecting tubes and the radial through holes.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (10)
1. The flow measuring device is characterized by comprising a fluid pipeline, wherein at least two radial through holes are formed in the wall of the fluid pipeline, a circulating outer pipe connected to the outside of the fluid pipeline and a circulating inner pipe connected to the inside of the fluid pipeline are respectively arranged on the two radial through holes, the circulating inner pipe is a net pipe with meshes formed in the wall of the fluid pipeline, the circulating outer pipe is a closed pipeline, the two radial through holes, the circulating outer pipe and the circulating inner pipe form a circulating pipeline communicated with each other, a plurality of hollow spheres are arranged in the circulating pipeline, the hollow spheres circulate in the circulating pipeline in the fluid flowing state of the fluid pipeline, and a flow rate sensor for detecting the flow rate of the hollow spheres is arranged near the circulating outer pipe.
2. The flow measurement device of claim 1, wherein a plurality of pins are provided on a surface of the hollow sphere.
3. A flow measurement device according to claim 2, wherein the hollow sphere is internally filled with magnetic powder.
4. A flow measurement device according to claim 2, characterized in that the hollow sphere is a magnetic plastic hollow sphere made of plastic containing magnetic powder.
5. A flow measurement device according to claim 3 or 4, wherein the outer circulation tube and the inner circulation tube are U-shaped tubes.
6. The flow measurement device of claim 5, wherein the outer circulation tube is a glass tube or a transparent plastic tube, and the inner circulation tube is a plastic mesh tube or a stainless steel mesh tube.
7. A flow measurement device according to claim 6, characterized in that a pressure sensor and/or a temperature sensor is provided on the inner wall of the fluid conduit.
8. The flow measurement device of claim 7, wherein the flow sensor is a photoelectric sensor or an electromagnetic induction sensor.
9. The flow measurement device of claim 8, wherein the flow sensor, pressure sensor, and/or temperature sensor are coupled to a controller.
10. The flow rate measurement device according to claim 8, wherein a connecting pipe is inserted into the radial through hole, both ends of the circulation outer pipe and the circulation inner pipe are connected to both ends of the connecting pipe, respectively, and a sealing member is filled between the connecting pipe and the radial through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011237432.6A CN112484790B (en) | 2020-11-09 | 2020-11-09 | Flow measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011237432.6A CN112484790B (en) | 2020-11-09 | 2020-11-09 | Flow measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112484790A CN112484790A (en) | 2021-03-12 |
| CN112484790B true CN112484790B (en) | 2024-03-08 |
Family
ID=74929230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011237432.6A Active CN112484790B (en) | 2020-11-09 | 2020-11-09 | Flow measuring device |
Country Status (1)
| Country | Link |
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| CN (1) | CN112484790B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2034280U (en) * | 1988-02-01 | 1989-03-15 | 浙江大学 | Strain tube flow velocity sensor |
| CN103389389A (en) * | 2013-08-28 | 2013-11-13 | 魏巍 | Gravity flow velocity sensor and open channel flow velocity and flow rate monitoring device |
| CN203594977U (en) * | 2013-12-17 | 2014-05-14 | 北京沃仕隆工业测控技术有限公司 | Coal gas flow meter |
| CN104316117A (en) * | 2014-11-20 | 2015-01-28 | 东南大学 | Flow measuring device |
| DE102017006456A1 (en) * | 2017-07-07 | 2018-08-02 | Baumer Hhs Gmbh | Device for detecting a volume flow of a process fluid |
| CN208672667U (en) * | 2018-08-21 | 2019-03-29 | 北京华宇天威科技有限公司 | A kind of distribution acoustics doppler flow amount monitoring device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2545125B (en) * | 2012-03-05 | 2018-01-31 | Spirax-Sarco Ltd | Flow meter |
-
2020
- 2020-11-09 CN CN202011237432.6A patent/CN112484790B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2034280U (en) * | 1988-02-01 | 1989-03-15 | 浙江大学 | Strain tube flow velocity sensor |
| CN103389389A (en) * | 2013-08-28 | 2013-11-13 | 魏巍 | Gravity flow velocity sensor and open channel flow velocity and flow rate monitoring device |
| CN203594977U (en) * | 2013-12-17 | 2014-05-14 | 北京沃仕隆工业测控技术有限公司 | Coal gas flow meter |
| CN104316117A (en) * | 2014-11-20 | 2015-01-28 | 东南大学 | Flow measuring device |
| DE102017006456A1 (en) * | 2017-07-07 | 2018-08-02 | Baumer Hhs Gmbh | Device for detecting a volume flow of a process fluid |
| CN208672667U (en) * | 2018-08-21 | 2019-03-29 | 北京华宇天威科技有限公司 | A kind of distribution acoustics doppler flow amount monitoring device |
Non-Patent Citations (1)
| Title |
|---|
| 浅谈威力巴流量计的应用;李云华 等;《中国仪器仪表 》;第17-19页 * |
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| CN112484790A (en) | 2021-03-12 |
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Effective date of registration: 20240202 Address after: 214400 No.98, Qiaoqi Renmin Road, XuXiake Town, Jiangyin City, Wuxi City, Jiangsu Province Applicant after: Jiangsu Weiersheng Electronic Technology Co.,Ltd. Country or region after: China Address before: 214400 No.12 Fuyuan Road, Jiangyin City, Wuxi City, Jiangsu Province Applicant before: Jiangyin Weisheng Instrument Manufacturing Co.,Ltd. Country or region before: China |
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