CN106093462A - A kind of pipe flow speed sensor - Google Patents
A kind of pipe flow speed sensor Download PDFInfo
- Publication number
- CN106093462A CN106093462A CN201610612670.8A CN201610612670A CN106093462A CN 106093462 A CN106093462 A CN 106093462A CN 201610612670 A CN201610612670 A CN 201610612670A CN 106093462 A CN106093462 A CN 106093462A
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- China
- Prior art keywords
- resistance
- clamp
- current meter
- strain
- speed sensor
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Classifications
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- 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
- G01P5/08—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring variation of an electric variable directly affected by the flow, e.g. by using dynamo-electric effect
- G01P5/086—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring variation of an electric variable directly affected by the flow, e.g. by using dynamo-electric effect by using special arrangements and constructions for measuring the dynamo-electric effect
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The present invention relates to a kind of pipe flow speed sensor, including the current meter shell being connected on pipeline, two groups of clamp systems it are provided with in current meter shell, clamp system includes two clamp clips, connect by screw is fixing between clamp clip, wherein it is connected by connecting rod is fixing between clamp clip with current meter outer casing inner wall, resistance-strain band it is additionally provided with between two groups of clamp systems, resistance-strain band includes the folder film that two-layer be arranged in parallel, is provided with by the strain resistor of some resistance wire arrays between folder film；The axial two ends of resistance-strain band are clamped on clamp system, and the axial two ends of strain resistor connect wire, and wire extend out to the outside of current meter shell via connecting rod and is connected with Wheatstone bridge；The middle part of resistance-strain band is provided with baffle, and baffle includes two groups of symmetrically arranged lobe, is provided with the groove for clamping resistance-strain band between lobe.
Description
Technical field
The present invention relates to a kind of pipe flow speed sensor, belong to pipe flow speed sensor field.
Background technology
Current meter, as the equipment measuring water velocity, by field, can be divided into mechanical type, optical profile type, sound wave
Several big class such as formula, wherein:
It is high that optical profile type and sound wave formula have accuracy of data acquisition, and flow rate feedback is timely, pipe flow speed does not exist the shadows such as decay
Ring and be extensively used in some high-accuracy use fields, such as: pharmacy, accurate chemical industry, fluid model foundation, pipeline and water pump
Deng accurate conveying equipment for fluid substances test etc.；Optical profile type and acoustics formula mainly by the medium such as sound wave, electromagnetic wave, utilize it in difference
Under the medium of flow velocity, manufacturing sound wave, electromagnetic wave attenuation impact theory different, that spread speed is different, its main body includes
Emitter and receptor, be high-accuracy equipment；
Higher to the requirement of environment, it is difficult to use the ring high at the such as dust content such as power plant, chemical plant, moisture content is high
Border, and this type of equipment cost is the highest, for the applying working condition that some environment are poor, needs equipment is carried out regular maintenance
And maintenance, it is not well suited for the relatively low factory of these unit product profits and uses；
Mechanical current meter is generally mounted to pipe interior, and from a structural point, external environment is to mechanical current meter shadow
Ring little, and mechanical current meter typically uses a driving impeller the most rotating, by driving impeller
Rotating speed obtain flow velocity, its agent structure includes the electric generator structure that impeller and rotate, simple in construction, with low cost,
More applicable profits are low, usage amount big, the factory the highest to data required precision, but mechanical current meter there is also bigger
Shortcoming, in order to reduce the difficulty of digital simulation, the pivot center of general impeller and the axis coaxle of pipeline, fluid heads on towards leaf
Wheel flowing, so the decay that impeller brings to rate of flow of fluid in pipeline is the hugest, it is not only possible to make flow velocity in pipeline without
Method reaches working index, and the flow velocity of this kind of structure is not very accurate, typically only in the tail pipe at pipeline structure simultaneously
Position, range is the least；
The mechanical current meter of one proposed such as ZL201110251948.0, it uses a large-scale impeller to realize flow velocity
Detection, this current meter flow resistance is relatively big, and it is higher that convection cell drives pump lift to require, and the flow rate attenuation bringing whole pipeline is also
Relatively big, additionally, this current meter is it is generally required to be connected in series in pipeline, if needing existing pipeline is installed, then need by
Existing pipeline is dismantled, and integrated engineering amount is relatively big, if the quality of the current meter impeller of rotary type is the highest in addition, rotates
Time also can bring certain shake to pipeline, affect the life-span of pipeline.
Summary of the invention
The technical problem to be solved in the present invention is: overcomes optics in prior art, acoustics formula current meter cost height, use ring
Shape requires height, the technical problem such as vane current-meter flow resistance is big, installation difficulty, it is provided that a kind of current meter.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of pipe flow speed sensor, including the current meter shell being connected on pipeline, is provided with in described current meter shell
Two groups of clamp systems, described clamp system includes two clamp clips, connects by screw is fixing, Qi Zhongyi between described clamp clip
It is connected by connecting rod is fixing between individual clamp clip with current meter outer casing inner wall, is additionally provided with between described two groups of clamp systems
Resistance-strain band, described resistance-strain band includes the folder film that two-layer be arranged in parallel, is provided with by some resistance wires between folder film
The strain resistor of array；The axial two ends of described resistance-strain band are clamped on clamp system, the axle of described strain resistor
Connecting to two ends and have wire, described wire extend out to the outside of current meter shell via connecting rod and is connected with Wheatstone bridge；
The middle part of described resistance-strain band is provided with a baffle, and described baffle includes two groups of symmetrically arranged projections
Portion, is provided with the groove for clamping resistance-strain band between lobe.
As a further improvement on the present invention, being provided with a connecting hole in the lobe of described baffle, two convex
Connected by the fixing jump ring of a U-shaped between the connecting hole in the portion of rising.
As a further improvement on the present invention, described connecting rod is outside hollow tubular structure, with clamp clip and current meter
Connection it is threadably secured between shell.
As a further improvement on the present invention, described current meter shell is provided with a seal casing, described sealing
Being provided with connection plug on case, described wire is connected with Wheatstone bridge by aforesaid connection plug.
As a further improvement on the present invention, on the axial other end of clamp system correspondence resistance-strain band fixed position
Being provided with elastic cushion block, described elastic cushion block is held between two clamp clips.
As a further improvement on the present invention, described folder film is silica gel material.
The invention has the beneficial effects as follows:
1, the present invention arranges a unsettled resistance-strain band by one in current meter shell, and fixes one in the middle
Baffle, fluid is when flowing through current meter shell, and air-flow can move by water conservancy diversion baffle generation trace, and its amount of movement depends entirely on
Fluid overcomes the elastic force of resistance-strain band self under different in flow rate so that resistance-strain band occurs different amounts of deformation, its
Deflection can be obtained by flow velocity by the conversion of correlation formula, and flow resistance is low, highly sensitive.
2, the fixing jump ring arranged between connecting hole can ensure that the groove clamping to resistance-strain band, prevents baffle
Come off.
3, hollow tubular structure facilitates penetrating of wire, simultaneously by hollow pipe injecting glue can realize sealing easily.
4, elastic cushion block is possible to prevent uneven to resistance-strain belt clamping force of clamp clip, improves the longevity of resistance-strain band
Life.
Accompanying drawing explanation
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of the present invention；
In figure: 1, current meter shell；2, connecting rod；3, clamp clip；4, elastic cushion block；5, baffle；6, connecting hole；7, electrostrictive strain
Resistance；8, folder film；9, seal casing；10, plug is connected；11, wire.
Detailed description of the invention
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, only with
The basic structure of the illustration explanation present invention, therefore it only shows the composition relevant with the present invention.
As it is shown in figure 1, the present invention is a kind of pipe flow speed sensor, including the current meter shell being connected on pipeline,
Being provided with two groups of clamp systems in described current meter shell, described clamp system includes two clamp clips, between described clamp clip
Connect by screw is fixing, be connected, described by connecting rod is fixing between one of them clamp clip with current meter outer casing inner wall
Being additionally provided with resistance-strain band between two groups of clamp systems, described resistance-strain band includes the silica gel material that two-layer be arranged in parallel
Folder film, is provided with by the strain resistor of some resistance wire arrays between folder film；The axial two ends of described resistance-strain band
Being clamped on clamp system, it is hollow tubular structure that the axial two ends connection of described strain resistor has wire, described connecting rod, with
Being threadably secured connection between clamp clip and current meter shell, described wire extend out to current meter shell via connecting rod
Outside, is provided with a seal casing on described current meter shell, described seal casing is provided with connection plug, described in lead
Line is connected with Wheatstone bridge by aforesaid connection plug；
The middle part of described resistance-strain band is provided with a baffle, and described baffle includes two groups of symmetrically arranged projections
Portion, is provided with the groove for clamping resistance-strain band between lobe, is provided with one in the lobe of described baffle
Individual connecting hole, is connected by the fixing jump ring of a U-shaped between the connecting hole of two lobe.
The axial other end of clamp system correspondence resistance-strain band fixed position is provided with elastic cushion block, described elasticity
Cushion block is held between two clamp clips.
During use, this product can be arranged on liquid stream or airflow line, have fluid to flow through in current meter shell
Time, the buoyancy of fluid and local resistance can promote baffle to be moved, and rate of flow of fluid is the highest, and baffle surface is produced resistance
The biggest, baffle axial moving force is bigger, so that resistance-strain band deforms upon, resistance value raises, and it raises
Measure between flow velocity linear.
With the above-mentioned desirable embodiment according to the present invention for enlightenment, by above-mentioned description, relevant staff is complete
Entirely can carry out various change and amendment in the range of without departing from this invention technological thought.The technology of this invention
The content that property scope is not limited in description, it is necessary to determine its technical scope according to right.
Claims (6)
1. a pipe flow speed sensor, is characterized in that: include the current meter shell being connected on pipeline, outside described current meter
Being provided with two groups of clamp systems in shell, described clamp system includes two clamp clips, is fixed by screw between described clamp clip
Connect, be connected, at described two groups of clamp systems by connecting rod is fixing between one of them clamp clip with current meter outer casing inner wall
Between be additionally provided with resistance-strain band, described resistance-strain band includes the folder film that two-layer be arranged in parallel, folder film between be provided with
Strain resistor by some resistance wire arrays；The axial two ends of described resistance-strain band are clamped on clamp system, described
The axial two ends of strain resistor connect wire, described wire via connecting rod extend out to current meter shell outside and with favour this
Energising bridging connects；
The middle part of described resistance-strain band is provided with a baffle, and described baffle includes two groups of symmetrically arranged projections
Portion, is provided with the groove for clamping resistance-strain band between lobe.
2. a kind of pipe flow speed sensor as claimed in claim 1, is characterized in that: arrange in the lobe of described baffle
There is a connecting hole, connected by the fixing jump ring of a U-shaped between the connecting hole of two lobe.
3. a kind of pipe flow speed sensor as claimed in claim 1, is characterized in that: described connecting rod is hollow tubular structure,
It is connected with being threadably secured between clamp clip and current meter shell.
4. a kind of pipe flow speed sensor as claimed in claim 1, is characterized in that: be provided with one on described current meter shell
Individual seal casing, described seal casing is provided with connection plug, and described wire is by aforesaid connection plug and favour stone electricity
Bridging connects.
5. a kind of pipe flow speed sensor as claimed in claim 1, is characterized in that: solid at clamp system correspondence resistance-strain band
Being provided with elastic cushion block on the axial other end that location is put, described elastic cushion block is held between two clamp clips.
6. a kind of pipe flow speed sensor as claimed in claim 1, is characterized in that: described folder film is silica gel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610612670.8A CN106093462A (en) | 2016-07-30 | 2016-07-30 | A kind of pipe flow speed sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610612670.8A CN106093462A (en) | 2016-07-30 | 2016-07-30 | A kind of pipe flow speed sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106093462A true CN106093462A (en) | 2016-11-09 |
Family
ID=57479343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610612670.8A Pending CN106093462A (en) | 2016-07-30 | 2016-07-30 | A kind of pipe flow speed sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106093462A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114373282A (en) * | 2022-01-21 | 2022-04-19 | 四川大学 | Debris flow early warning device and early warning method thereof |
Citations (8)
| 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 |
| CN101294977A (en) * | 2007-04-25 | 2008-10-29 | 中国科学院电子学研究所 | Silicon piezoresistance type wind velocity and wind direction sensor based on micro-electromechanical technology |
| CN101769936A (en) * | 2009-01-07 | 2010-07-07 | 中国科学院电子学研究所 | Minisize wind speed sensor integrating traction theory with hot wire theory |
| CN202522583U (en) * | 2012-01-10 | 2012-11-07 | 中国矿业大学 | Resistance strain transducer type device for detecting current speed in pipeline |
| CN202599971U (en) * | 2012-04-23 | 2012-12-12 | 华北电力大学 | Liquid flow rate measuring device based on resistance strain gage |
| CN202956389U (en) * | 2012-10-08 | 2013-05-29 | 华北电力大学 | Portable wind speed measuring device |
| CN203037665U (en) * | 2012-12-08 | 2013-07-03 | 张旭 | Novel flow rate measurement conversion device |
| CN205910214U (en) * | 2016-07-30 | 2017-01-25 | 无锡乐华自动化科技有限公司 | Pipe flow rate sensor |
-
2016
- 2016-07-30 CN CN201610612670.8A patent/CN106093462A/en active Pending
Patent Citations (8)
| 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 |
| CN101294977A (en) * | 2007-04-25 | 2008-10-29 | 中国科学院电子学研究所 | Silicon piezoresistance type wind velocity and wind direction sensor based on micro-electromechanical technology |
| CN101769936A (en) * | 2009-01-07 | 2010-07-07 | 中国科学院电子学研究所 | Minisize wind speed sensor integrating traction theory with hot wire theory |
| CN202522583U (en) * | 2012-01-10 | 2012-11-07 | 中国矿业大学 | Resistance strain transducer type device for detecting current speed in pipeline |
| CN202599971U (en) * | 2012-04-23 | 2012-12-12 | 华北电力大学 | Liquid flow rate measuring device based on resistance strain gage |
| CN202956389U (en) * | 2012-10-08 | 2013-05-29 | 华北电力大学 | Portable wind speed measuring device |
| CN203037665U (en) * | 2012-12-08 | 2013-07-03 | 张旭 | Novel flow rate measurement conversion device |
| CN205910214U (en) * | 2016-07-30 | 2017-01-25 | 无锡乐华自动化科技有限公司 | Pipe flow rate sensor |
Non-Patent Citations (2)
| Title |
|---|
| 徐明才: "实验室内流速仪", 《水利水运科技情报》 * |
| 朱栋升 等: "风翼式固态测风仪的研究与开发", 《自动化博览》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114373282A (en) * | 2022-01-21 | 2022-04-19 | 四川大学 | Debris flow early warning device and early warning method thereof |
| CN114373282B (en) * | 2022-01-21 | 2023-02-28 | 四川大学 | Debris flow early warning device and early warning method thereof |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161109 |
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| RJ01 | Rejection of invention patent application after publication |