CN108398571A - A kind of open channel uniform flow vertical direction multiple spot tachymeter device - Google Patents
A kind of open channel uniform flow vertical direction multiple spot tachymeter device Download PDFInfo
- Publication number
- CN108398571A CN108398571A CN201810144372.XA CN201810144372A CN108398571A CN 108398571 A CN108398571 A CN 108398571A CN 201810144372 A CN201810144372 A CN 201810144372A CN 108398571 A CN108398571 A CN 108398571A
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- Prior art keywords
- kinetic energy
- pipe
- pressure
- right angle
- measuring
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000005259 measurement Methods 0.000 description 3
- 238000009530 blood pressure measurement Methods 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- G01P5/14—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring differences of pressure in the fluid
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention discloses a kind of open channel uniform flow vertical direction multiple spot tachymeter devices, including dynamic pressure tube, vertical adjustable kinetic energy pipe mechanism and pressure measuring mechanism；Vertical adjustable kinetic energy pipe mechanism includes the pipe of kinetic energy right angle one, the pipe of kinetic energy right angle two, the pipe of kinetic energy right angle three, positioning ruler and knob, and pressure measuring mechanism includes pressure difference scale, sliding needle, dynamic pressure pressure-measuring pipe, air vent switch, kinetic energy pressure-measuring pipe one, kinetic energy pressure-measuring pipe two, kinetic energy pressure-measuring pipe three and together with pipe；One pipe horizontal segment of kinetic energy right angle is built in dynamic pressure tube horizontal segment, and dynamic pressure tube horizontal segment front sets pitot aperture, is communicated with one upper end of kinetic energy pressure-measuring pipe, two upper end of kinetic energy pressure-measuring pipe, kinetic energy pressure-measuring pipe upper end and dynamic pressure tube upper end communicating pipe.Compared with prior art, the present invention can measure open channel uniform flow cross section perpendicular direction implementation multiple spot simultaneously, and precision is higher, and workload is relatively low, and working efficiency is higher, and cost is relatively low, simple for structure, and it is larger to promote space.
Description
Technical field
The present invention be directed to current open channel uniform flow section Single-point velocity determinations, and a kind of open channel uniform flow vertical direction designed
Multiple spot tachymeter device.It belongs to hydro science technical field.
Background technology
Currently, using Pitot tube, rotation current meter for open channel uniform flow cross-sectional flow field measurement, measurement mode is single-point
It tests the speed, can only measure every time a bit, it is then, point-by-point accumulative, measure cross-sectional flow distribution, this measurement mode, for section cloth
When point negligible amounts, workload variation accumulation is little, for section layout quantitative requirement it is more when, workload changes greatly, because
And prior art Shortcomings.
Invention content
The technical problem to be solved by the present invention is in view of the above shortcomings of the prior art, and a kind of open channel invented is uniform
Vertical direction multiple spot tachymeter device is flowed, it on surveyed cross section perpendicular direction by arranging that a dynamic pressure tube and multiple kinetic energy are straight
Cornue is completed the vertical of same time and is measured to multiple spot flow velocity, to improve working efficiency, reduces work cumulant.Evaded with this
The deficiencies in the prior art.
The technical scheme is that：
A kind of open channel uniform flow vertical direction multiple spot tachymeter device, it is characterised in that：Including dynamic pressure tube, vertical adjustable
Kinetic energy pipe mechanism and pressure measuring mechanism；The vertical adjustable kinetic energy pipe mechanism include kinetic energy right angle one pipe, kinetic energy right angle two pipe,
The pipe of kinetic energy right angle three, positioning ruler and knob, the pressure measuring mechanism include pressure difference scale, sliding needle, dynamic pressure pressure-measuring pipe, air vent switch,
Kinetic energy pressure-measuring pipe one, kinetic energy pressure-measuring pipe two, kinetic energy pressure-measuring pipe three and together with pipe；One pipe horizontal segment of the kinetic energy right angle is built in dynamic
In pressure pipe horizontal segment, dynamic pressure tube horizontal segment front sets pitot aperture, and the dynamic pressure tube upper end passes through hose and dynamic pressure pressure-measuring pipe lower end
It is connected, one pipe upper end of the kinetic energy right angle is connected by hose with one lower end of kinetic energy pressure-measuring pipe, two pipe upper end of the kinetic energy right angle
It is connected with two lower end of kinetic energy pressure-measuring pipe by hose, three pipe upper end of the kinetic energy right angle passes through hose and three lower end of kinetic energy pressure-measuring pipe
It is connected, the positioning ruler is connected by knob with the pipe of kinetic energy right angle one, the pipe of kinetic energy right angle two, the pipe of kinetic energy right angle three and dynamic pressure tube,
The communicating pipe communicates with one upper end of kinetic energy pressure-measuring pipe, two upper end of kinetic energy pressure-measuring pipe, kinetic energy pressure-measuring pipe upper end and dynamic pressure tube upper end.
Its structure of apparatus of the present invention consists of two parts：Vertical adjustable dynamic pressure tube kinetic energy pipe mechanism and pressure measuring mechanism.
Vertical adjustable dynamic pressure tube kinetic energy pipe mechanism section, setting dynamic pressure tube, the pipe of kinetic energy right angle one, the pipe of kinetic energy right angle two, move pitot aperture
Energy right angle three pipe, positioning ruler and knob, working mechanism：It is managed when flow flows into kinetic energy right angle one, kinetic energy right angle two is managed and kinetic energy
Three pipe front end of right angle meets water hole, when rushing at their square apex angle, since flow rate of water flow direction is abducted right angle, in right angle flow
The speed of former flow direction becomes zero, but kinetic energy cannot disappear, it is converted into potential energy here.In pressure measuring mechanism part, setting
Dynamic pressure pressure-measuring pipe, air vent switch, kinetic energy pressure-measuring pipe one, kinetic energy pressure-measuring pipe two and kinetic energy pressure-measuring pipe three, operation principle：Dynamic pressure is surveyed
Pressure pipe is the dynamic pressure head of each measuring point of the Measure section, because in uniform flow, the unit potential energy of same section each point is normal
Number, the water surface elevation of each kinetic energy pressure-measuring pipe are the sum of the kinetic energy head of the dynamic pressure head and respective points of each measuring point, kinetic energy
The water surface elevation of pressure-measuring pipe and the difference of dynamic pressure piezometric surface height find out kinetic energy for the kinetic energy of the point, can know the stream of the point
Speed.Advantages of the present invention：Compared with prior art, the present invention can implement multiple spot, simultaneously to open channel uniform flow cross section perpendicular direction
It measures, precision is higher, and workload is relatively low, and working efficiency is higher, and cost is relatively low, simple for structure, and it is larger to promote space.
Description of the drawings
Fig. 1 is apparatus of the present invention schematic diagram.
Wherein：1, dynamic pressure tube, 2, positioning ruler, 3, sliding needle, 4, air vent switch, 5, dynamic pressure pressure-measuring pipe, 6, communicating pipe, 7, kinetic energy
Pressure-measuring pipe one, 8, kinetic energy pressure-measuring pipe two, 9, kinetic energy pressure-measuring pipe three, 10, knob, 11, kinetic energy right angle three manage, 12, kinetic energy right angle two
Pipe, 13, kinetic energy right angle one manage, 14, pitot aperture, 15, scale.
Specific implementation mode
Compares figure 1, three pipe 11 of kinetic energy right angle are placed in two pipe of kinetic energy right angle, 12 upper end, and it is straight that two pipe 12 of kinetic energy right angle is placed in kinetic energy
One pipe of angle, 13 upper end, three pipe 11 of kinetic energy right angle, two pipe 12 of kinetic energy right angle and one pipe of kinetic energy right angle, 13 front end aperture are located at same
On vertical line, each kinetic energy quadrature tube is connected by knob 10 with positioning ruler 2 with dynamic pressure tube 1, is adjusted by knob 10 and positioning ruler 2
The entirely height distance between kinetic energy quadrature tube and dynamic pressure tube 1.One pipe of kinetic energy right angle, 13 horizontal segment is built in 1 horizontal segment of dynamic pressure tube
Interior, 1 upper end of dynamic pressure tube is connected by hose with 5 lower end of dynamic pressure pressure-measuring pipe, and one pipe of kinetic energy right angle, 13 upper end passes through hose and kinetic energy
One 7 lower end of pressure-measuring pipe connects, and two pipe of kinetic energy right angle, 12 upper end is connected by hose with 28 lower end of kinetic energy pressure-measuring pipe, kinetic energy right angle
Three pipes, 11 upper end is connected by hose with 39 lower end of kinetic energy pressure-measuring pipe, communicating pipe 6 and one 7 upper end of kinetic energy pressure-measuring pipe, kinetic energy pressure measurement
28 upper end of pipe, 39 upper end of kinetic energy pressure-measuring pipe and 1 upper end of dynamic pressure tube communicate.
The course of work：By section to be measured, vertically it is divided into several piece and serialization row；According to position of layouting, adjusting knob 10, if
Determine spacing between dynamic pressure tube 1, three pipe 11 of one pipe 13 of kinetic energy right angle, kinetic energy right angle 2 12 and kinetic energy right angle, utilizes air vent switch 4
Inflation or air-breathing adjust the water surface of dynamic pressure pressure-measuring pipe and kinetic energy pressure-measuring pipe, make in pipe the water surface in readable range；Along first row into
The vertical point flow velocity of row flowing water section measures, and by scale 15 and sliding needle 3, slides sliding needle 3 successively and reads dynamic pressure pressure-measuring pipe respectively
5, the different of the water surface read in kinetic energy pressure-measuring pipe 1, kinetic energy pressure-measuring pipe 28 and kinetic energy pressure-measuring pipe 39；It is moved again along first row
Dynamic vertical adjustable dynamic pressure tube kinetic energy pipe mechanism carries out the vertical point flow velocity of second of flowing water section and measures, records dynamic pressure pressure measurement
Water surface reading in pipe and kinetic energy pressure-measuring pipe pipe；And so on, all section sequence point flow velocitys are completed to measure.
Claims (1)
1. a kind of open channel uniform flow vertical direction multiple spot tachymeter device, it is characterised in that：Including dynamic pressure tube (1), vertically adjustable
Formula kinetic energy pipe mechanism and pressure measuring mechanism；The vertical adjustable kinetic energy pipe mechanism includes that manage (13), kinetic energy straight at kinetic energy right angle one
(12) are managed at angle two, (11), positioning ruler (2) and knob (10) are managed in kinetic energy right angle three, the pressure measuring mechanism include pressure difference scale (15),
Sliding needle (3), dynamic pressure pressure-measuring pipe (5), air vent switch (4), kinetic energy pressure-measuring pipe one (7), kinetic energy pressure-measuring pipe two (8), kinetic energy pressure-measuring pipe
Three (9) and together with pipe (6)；The kinetic energy right angle one is managed (13) horizontal segment and is built in dynamic pressure tube (1) horizontal segment, dynamic pressure tube (1)
Horizontal segment front sets pitot aperture (14), and dynamic pressure tube (1) upper end is connected by hose with dynamic pressure pressure-measuring pipe (5) lower end, described
Kinetic energy right angle one manages (13) upper end and is connected with kinetic energy pressure-measuring pipe one (7) lower end by hose, and the kinetic energy right angle two is managed on (12)
End is connected by hose with kinetic energy pressure-measuring pipe two (8) lower end, and the kinetic energy right angle three is managed (11) upper end and surveyed by hose and kinetic energy
Pressure pipe three (9) lower end is connected, and the positioning ruler (2) manages (13) by knob and kinetic energy right angle one, kinetic energy right angle two is managed (12), moved
Energy right angle three manages (11) and is connected with dynamic pressure tube (1), the communicating pipe (6) and kinetic energy pressure-measuring pipe one (7) upper end, kinetic energy pressure-measuring pipe two
(8) upper end, kinetic energy pressure-measuring pipe (9) upper end and dynamic pressure tube (1) upper end communicate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810144372.XA CN108398571B (en) | 2018-02-11 | 2018-02-11 | Vertical-direction multi-point velocimeter device for uniform flow of open channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810144372.XA CN108398571B (en) | 2018-02-11 | 2018-02-11 | Vertical-direction multi-point velocimeter device for uniform flow of open channel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108398571A true CN108398571A (en) | 2018-08-14 |
| CN108398571B CN108398571B (en) | 2019-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810144372.XA Expired - Fee Related CN108398571B (en) | 2018-02-11 | 2018-02-11 | Vertical-direction multi-point velocimeter device for uniform flow of open channel |
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| Country | Link |
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| CN (1) | CN108398571B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030101827A1 (en) * | 2001-12-05 | 2003-06-05 | Cha Un Jong | Apparatus for measuring respiratory gas flow by means of a disposable respiratory tube |
| CN201096500Y (en) * | 2007-11-05 | 2008-08-06 | 西安众望测控仪表有限责任公司 | Insertion type bullet head type flow meter |
| CN101393232A (en) * | 2007-09-20 | 2009-03-25 | 严登丰 | By-pass flow speed flowmeters |
| CN201464489U (en) * | 2009-06-19 | 2010-05-12 | 张占宝 | Mesh-shaped fluid uniform-speed measuring instrument |
| CN103033289A (en) * | 2012-12-24 | 2013-04-10 | 南京吉纳波环境测控有限公司 | Integrated measuring device for multiple-point type flow velocity pressure temperature |
| CN203285426U (en) * | 2013-01-25 | 2013-11-13 | 中国石油天然气股份有限公司 | Underground ultra-long thermocouple multipoint distribution structure and outer tube protection structure |
| CN205826473U (en) * | 2016-07-26 | 2016-12-21 | 西安西热锅炉环保工程有限公司 | Flue cross section smoke components concentration field and the dynamic on-line measuring device of velocity field multiple spot |
-
2018
- 2018-02-11 CN CN201810144372.XA patent/CN108398571B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030101827A1 (en) * | 2001-12-05 | 2003-06-05 | Cha Un Jong | Apparatus for measuring respiratory gas flow by means of a disposable respiratory tube |
| CN101393232A (en) * | 2007-09-20 | 2009-03-25 | 严登丰 | By-pass flow speed flowmeters |
| CN201096500Y (en) * | 2007-11-05 | 2008-08-06 | 西安众望测控仪表有限责任公司 | Insertion type bullet head type flow meter |
| CN201464489U (en) * | 2009-06-19 | 2010-05-12 | 张占宝 | Mesh-shaped fluid uniform-speed measuring instrument |
| CN103033289A (en) * | 2012-12-24 | 2013-04-10 | 南京吉纳波环境测控有限公司 | Integrated measuring device for multiple-point type flow velocity pressure temperature |
| CN203285426U (en) * | 2013-01-25 | 2013-11-13 | 中国石油天然气股份有限公司 | Underground ultra-long thermocouple multipoint distribution structure and outer tube protection structure |
| CN205826473U (en) * | 2016-07-26 | 2016-12-21 | 西安西热锅炉环保工程有限公司 | Flue cross section smoke components concentration field and the dynamic on-line measuring device of velocity field multiple spot |
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|---|---|
| CN108398571B (en) | 2019-12-10 |
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