CN109974797A - A kind of flow-guiding type aerofoil profile flow measurement device - Google Patents
A kind of flow-guiding type aerofoil profile flow measurement device Download PDFInfo
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- CN109974797A CN109974797A CN201910371314.5A CN201910371314A CN109974797A CN 109974797 A CN109974797 A CN 109974797A CN 201910371314 A CN201910371314 A CN 201910371314A CN 109974797 A CN109974797 A CN 109974797A
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- aerofoil profile
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- thin plate
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- 238000005259 measurement Methods 0.000 title claims abstract description 34
- 230000003068 static effect Effects 0.000 claims abstract description 14
- 238000009423 ventilation Methods 0.000 claims description 13
- 210000001364 upper extremity Anatomy 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000030279 gene silencing Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- G01F1/34—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 measuring pressure or differential pressure
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The present invention relates to a kind of flow-guiding type aerofoil profile flow measurement devices, including aerofoil profile flow measurement device ontology, aerofoil profile flow measurement device ontology is made of primary device and secondary device, primary device includes aerofoil profile thin plate and locating support, aerofoil profile thin plate is fixed on locating support, total pressure pressure pipe and static pressure pressure pipe are connected through aerofoil profile thin plate and locating support with the wind pressure transmitter of secondary device, and data output interface is provided on wind pressure transmitter, is provided with data receiver interface on the controller.The configuration of the present invention is simple, design rationally, can carry out precise measurement to the flow of wind, convenient for being adjusted in time to the indoor air quantity in cabin.
Description
Technical field
The present invention relates to flow measurement technology fields, and in particular to for a kind of flow-guiding type aerofoil profile in ventilation terminal peculiar to vessel
Flow measurement device.
Background technique
Marine air-conditioning system generally uses ventilation terminal as ventilation end, and high-end ventilation terminal product has automatic adjustment air quantity
Function, the accurate air output that measures is the important prerequisite for improving high-end ventilation terminal temperature-controlled precision, improving air-conditioning system comfort.Cloth
Wind device flowmeter is divided into flowmeter in duct type flowmeter and runner, common duct type flowmeter cruciform shape flowmeter,
Flowmeter such as orifice flowmeter, Venturi meter, mean velocity tube flowmeter, Pitot tube principle type-bi toba flow meter in runner
Deng.But measured medium temperature, flow regime and scene are pacified in the limitation that current flowmeter is designed due to working principle and structure
Dress condition requires height, especially higher to flow measurement difficulty in helix tube ventilation terminal；Ventilation terminal inner flow passage space is small, camber
Greatly, influence of the measured medium flow field vulnerable to measurement pipe volume, as air often has peripheral flow phenomenon, trailing vortex area after Pitot tube
Flowing pressure loss is big.
Existing aerofoil profile flowmeter uses collapsible aerofoil profile thin slice as plug-in type flow signal generator, using airfoil lift
Principle, load cell measure medium and flow through the lift generated when aerofoil profile thin slice, and by flow indication integrating instrument according to aerofoil profile
The relational expression of the elevation angle fish lift of thin slice calculates the rate-of flow under this value of lift, such as Patent No. CN201120254704.3
Aerofoil profile flowmeter.Although this aerofoil profile flowmeter uses airfoil structure, there must be certain elevation angle could be according to mechanics
Principle converses flow value, and the installation elevation angle stream field for not accounting for flowmeter itself has very big disturbing influence, and measures
Precision is affected by load cell and the aerofoil profile thin slice elevation angle.
Summary of the invention
The present invention is based on the methods of pressure difference measurement of discharge to propose that one kind takes into account water conservancy diversion and flow measurement to solve the above-mentioned problems
Flow-guiding type aerofoil profile flow measurement device.
The present invention is achieved through the following technical solutions in order to achieve the above object:
1, the present invention is a kind of flow-guiding type aerofoil profile flow measurement device, including aerofoil profile flow measurement device ontology, and aerofoil profile flow is surveyed
Amount device noumenon is made of primary device and secondary device, and primary device includes aerofoil profile thin plate and locating support, and aerofoil profile thin plate is solid
It is scheduled on locating support, total pressure pressure pipe and static pressure pressure pipe become through the wind pressure of aerofoil profile thin plate and locating support and secondary device
It send device to be connected, data output interface is provided on wind pressure transmitter, is provided with data receiver interface on the controller.
A further improvement of the present invention is that: aerofoil profile thin plate is round end tail point shape, be divided into before right after leading edge, upper limb and after
The leading edge position of the direction of flow of face fluid is arranged in three positions of edge, the pressure port of total pressure pressure pipe, static pressure pressure pipe
Pressure port is arranged at the maximum gauge of entire aerofoil profile thin plate thickness and upper limb.
2, a further improvement of the present invention is that: be provided with the runner being threaded onto ventilation terminal tank wall on the outside of locating support
On, runner is made of upper and lower two runner wall surface central fillers porous noise reduction sponge.
3, a further improvement of the present invention is that: wind pressure transmitter is fixed in porous noise reduction sponge.
The beneficial effects of the present invention are: helical flow path can be measured, in bend pipe and other stream fields, energy saving are more demanding
The flow of wind in place measure, on the one hand fusiform airfoil structure can farthest reduce disturbing for stream field
It is dynamic, reduce the pressure loss, to make up conventional flow meters itself to the adverse effect of measuring accuracy.Another aspect fluid is to the wing
The impact of type thin plate reduces, to make it, the service life is longer, by simulation calculation, this flow-guiding type aerofoil profile flow measurement
The pressure loss of device can reduce by 1/2 compared with traditional pitot tube folwmeter, greatly reduce air in ventilation terminal flow it is dynamic
It can consumption.Device is small and exquisite, can further decrease the volume of ventilation terminal, easy to install and use.
The configuration of the present invention is simple, design rationally, can carry out precise measurement to the flow of wind, convenient for indoor to cabin in time
Air quantity is adjusted.
Attached drawing
Fig. 1 is schematic structural view of the invention.
Fig. 2 is scheme of installation of the present invention.
Motion pattern around when Fig. 3 is present invention measurement.
Fig. 4 is side view of the present invention.
Fig. 5 is control logic figure.
Wherein: 1- aerofoil profile thin plate；2- locating support；3- total pressure pressure pipe；4- wind pressure transmitter；5- static pressure pressure pipe；6-
Data output interface；7- ventilation terminal tank wall；8- runner wall surface；The porous silencing cotton of 9-.
Specific embodiment
In order to reinforce the understanding of the present invention, below in conjunction with embodiment and attached drawing, the present invention will be described in detail, should
The examples are only for explaining the invention, does not constitute and limits to protection scope of the present invention.
As shown in Figs. 1-5, the present invention is a kind of flow-guiding type aerofoil profile flow measurement device, including aerofoil profile flow measurement device sheet
Body, aerofoil profile flow measurement device ontology are made of primary device and secondary device, and primary device includes aerofoil profile thin plate 1 and positioning branch
Frame 2, aerofoil profile thin plate 1 are fixed on locating support 2, are provided with the runner being threaded onto ventilation terminal tank wall on the outside of locating support
On, easy to disassemble, bracket material is preferably stainless steel, and runner has porous noise reduction sponge by upper and lower two runners wall surface central filler
Composition, wind pressure transmitter are fixed in porous noise reduction sponge, and total pressure pressure pipe 3 and static pressure pressure pipe 5 through aerofoil profile thin plate 1 and are determined
Position bracket 2 is connected with the wind pressure transmitter 4 of secondary device, data output interface 6 is provided on wind pressure transmitter 4, aerofoil profile is excellent
The round end fine stern shape being selected as in Low Speed Airfoil, leading edge is plentiful, top airfoil is flat, rear is to recessed shape and structure.Total pressure pressure
Pipe, static pressure pressure pipe are in the inside of aerofoil profile thin plate.The pressure port of total pressure pressure pipe in aerofoil profile thin plate head leading edge, face fluid
Direction of flow.The pressure port of static pressure pressure pipe is at the maximum gauge of aerofoil profile flowmeter upper surface.Pressure pipe is preferably
It is divided into three leading edge, upper limb and rear positions, aerofoil profile thin plate plentiful, top airfoil for leading edge before 1Cr18Ni9Ti stainless steel is right after
The leading edge potion of the direction of flow of face fluid is arranged in recessed shape and structure, the pressure port of total pressure pressure pipe 3 in flat, rear
Position, the pressure port of static pressure pressure pipe 5 are arranged at the maximum gauge of entire 1 thickness of aerofoil profile thin plate and upper limb, total pressure and static pressure
Pressure pipe is preferably 1Cr18Ni9Ti stainless steel tube, and total pressure pressure pipe 3, static pressure pressure pipe 5 receive two kinds of pressures at aerofoil profile thin plate 1
Force signal, wind pressure transmitter receives the incoming differential pressure signal of total pressure pressure pipe, static pressure pressure pipe, and differential pressure signal is transformed into electricity
Stream or voltage signal signal are exported by data output interface, the data receiver interface signal of controller, temperature sensor pair
The temperature in controlled room carries out data acquisition, and temperature controller carries out calculating cabin according to collected temperature and set temperature
Demand air quantity, the air quantity that controller is detected by aerofoil profile flow measurement device is calculated and compared with demand air quantity, difference
It is computed output signal control air valve actuator living, air valve actuator is controlled by adjusting air valve door aperture is sent into cabin
The air quantity of room, so that cabin actual air volume is equal with demand air quantity, to control cabin temperature.
Flow-guiding type aerofoil profile flow measurement device belongs to pressure difference measurement formula apparatus for measuring air quantity, by flow-guiding type aerofoil profile flow measurement
Device is mounted on runner center, and the up-front total pressure pressure port face direction of flow in head, the pressure port of static pressure pressure pipe is in aerofoil profile
At the maximum gauge of flowmeter upper surface, the normal in hole and the flow direction of measured medium are vertical；Runner in perpendicular flow direction
Stackable multiple flow-guiding type aerofoil profile flow measurement devices in section calculate the average value of flow everywhere, and it is accurate to can be improved measurement
Degree.
The configuration of the present invention is simple, design rationally, can carry out precise measurement to the flow of wind, convenient for indoor to cabin in time
Air quantity is adjusted.
Claims (4)
1. a kind of flow-guiding type aerofoil profile flow measurement device, including aerofoil profile flow measurement device ontology, it is characterised in that: the aerofoil profile
Flow measurement device ontology is made of primary device and secondary device, and the primary device includes aerofoil profile thin plate (1) and positioning branch
Frame (2), the aerofoil profile thin plate (1) are fixed on the locating support (2), and total pressure pressure pipe (3) and static pressure pressure pipe (5) run through
The aerofoil profile thin plate (1) and the locating support (2) are connected with the wind pressure transmitter (4) of the secondary device, in the wind pressure
It is provided with data output interface (6) on transmitter (4), is provided with data receiver interface on the controller.
2. a kind of flow-guiding type aerofoil profile flow measurement device according to claim 1, it is characterised in that: the aerofoil profile thin plate (1)
For round end tail point shape, it is divided into three leading edge, upper limb and rear positions after before right, the pressure port of the total pressure pressure pipe (3) is set
It sets at the leading edge position of the direction of flow of face fluid, the pressure port setting of the static pressure pressure pipe (5) is entire described
At the maximum gauge of aerofoil profile thin plate (1) thickness and the upper limb.
3. a kind of flow-guiding type aerofoil profile flow measurement device according to claim 1, it is characterised in that: the locating support (2)
Outside is provided on the runner being threaded onto ventilation terminal tank wall (7), and the runner among upper and lower two runner wall surfaces (8) by filling out
It is formed filled with porous noise reduction sponge (9).
4. a kind of flow-guiding type aerofoil profile flow measurement device according to claim 3, it is characterised in that: the wind pressure transmitter
(4) it is fixed in the porous noise reduction sponge (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910371314.5A CN109974797A (en) | 2019-05-06 | 2019-05-06 | A kind of flow-guiding type aerofoil profile flow measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910371314.5A CN109974797A (en) | 2019-05-06 | 2019-05-06 | A kind of flow-guiding type aerofoil profile flow measurement device |
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| CN109974797A true CN109974797A (en) | 2019-07-05 |
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| CN201910371314.5A Pending CN109974797A (en) | 2019-05-06 | 2019-05-06 | A kind of flow-guiding type aerofoil profile flow measurement device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113281532A (en) * | 2021-06-16 | 2021-08-20 | 中国船舶工业集团公司第七0八研究所 | Pitot tube convenient for angle adjustment in pipeline and flow velocity measuring method thereof |
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|---|---|---|---|---|
| DE102007044079A1 (en) * | 2007-09-14 | 2009-04-16 | Continental Automotive Gmbh | Flow sensor for determining mass of fluid flowing through flow channel in time interval, has measurement body which is formed in fluid flow and passes fluid in asymmetric manner |
| CN202631014U (en) * | 2012-06-11 | 2012-12-26 | 江阴市节流装置厂有限公司 | Three-curve-airfoil rectifying type air flow device |
| US8733180B1 (en) * | 2011-11-22 | 2014-05-27 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Airfoil-shaped fluid flow tool for use in making differential measurements |
| CN207830997U (en) * | 2018-01-31 | 2018-09-07 | 宋旭 | A kind of novel water supply and sewerage pipeline |
| CN109141546A (en) * | 2018-08-30 | 2019-01-04 | 周冰 | Tandem aerofoil profile differential pressure block cross-sectional flow meter, differential pressure measuring installation and measurement method |
| CN109533264A (en) * | 2018-11-19 | 2019-03-29 | 江苏科技大学 | A kind of spiral flow channel variable air rate ventilation terminal peculiar to vessel |
| CN209639769U (en) * | 2019-05-06 | 2019-11-15 | 江苏科技大学 | A kind of flow-guiding type aerofoil profile flow measurement device |
-
2019
- 2019-05-06 CN CN201910371314.5A patent/CN109974797A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007044079A1 (en) * | 2007-09-14 | 2009-04-16 | Continental Automotive Gmbh | Flow sensor for determining mass of fluid flowing through flow channel in time interval, has measurement body which is formed in fluid flow and passes fluid in asymmetric manner |
| US8733180B1 (en) * | 2011-11-22 | 2014-05-27 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Airfoil-shaped fluid flow tool for use in making differential measurements |
| CN202631014U (en) * | 2012-06-11 | 2012-12-26 | 江阴市节流装置厂有限公司 | Three-curve-airfoil rectifying type air flow device |
| CN207830997U (en) * | 2018-01-31 | 2018-09-07 | 宋旭 | A kind of novel water supply and sewerage pipeline |
| CN109141546A (en) * | 2018-08-30 | 2019-01-04 | 周冰 | Tandem aerofoil profile differential pressure block cross-sectional flow meter, differential pressure measuring installation and measurement method |
| CN109533264A (en) * | 2018-11-19 | 2019-03-29 | 江苏科技大学 | A kind of spiral flow channel variable air rate ventilation terminal peculiar to vessel |
| CN209639769U (en) * | 2019-05-06 | 2019-11-15 | 江苏科技大学 | A kind of flow-guiding type aerofoil profile flow measurement device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113281532A (en) * | 2021-06-16 | 2021-08-20 | 中国船舶工业集团公司第七0八研究所 | Pitot tube convenient for angle adjustment in pipeline and flow velocity measuring method thereof |
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