CN111122395A - Mobile supersonic nozzle continuous measurement system - Google Patents
Mobile supersonic nozzle continuous measurement system Download PDFInfo
- Publication number
- CN111122395A CN111122395A CN201911229750.5A CN201911229750A CN111122395A CN 111122395 A CN111122395 A CN 111122395A CN 201911229750 A CN201911229750 A CN 201911229750A CN 111122395 A CN111122395 A CN 111122395A
- Authority
- CN
- China
- Prior art keywords
- nozzle
- supersonic nozzle
- motor
- data
- data acquisition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005259 measurement Methods 0.000 title claims abstract description 32
- 238000009833 condensation Methods 0.000 claims abstract description 18
- 230000005494 condensation Effects 0.000 claims abstract description 18
- 238000002474 experimental method Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 15
- 230000008033 biological extinction Effects 0.000 claims abstract description 14
- 230000033001 locomotion Effects 0.000 claims abstract description 8
- 238000009530 blood pressure measurement Methods 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 9
- 230000003068 static effect Effects 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 6
- 238000010586 diagram Methods 0.000 claims description 4
- 238000004422 calculation algorithm Methods 0.000 claims description 3
- 238000013480 data collection Methods 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 2
- 238000011160 research Methods 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 230000010349 pulsation Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 238000000926 separation method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000005345 coagulation Methods 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 239000000306 component Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 230000005514 two-phase flow Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
- G01N15/0205—Investigating particle size or size distribution by optical means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Dispersion Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention relates to a mobile supersonic nozzle continuous measurement experiment system, which comprises a mobile supersonic nozzle experiment device and a software closed-loop control system; the system can obtain the unsteady condensed flow pressure fluctuation characteristic of the supersonic nozzle through the relative motion of the rectangular nozzle and the high-frequency response pressure sensor, overcomes the defect of poor consistency of the traditional supersonic nozzle along-the-way pressure measurement, and measures the droplet size distribution of all areas of the supersonic nozzle by adopting an extinction method; the system realizes multi-channel data acquisition, automatic storage and out-of-limit alarm through a data acquisition program, and continuous large-capacity dynamic data is stored by establishing a database; the system adopts motor pulsation control, the control precision is 0.01mm, and the synchronization of data acquisition and motor control is realized; the invention not only considers the continuous measurement of experimental data of the supersonic nozzle, but also realizes the closed-loop control of system software, and can be used for experimental research of the condensation characteristic of the supersonic nozzle.
Description
Technical Field
The invention belongs to the field of gas-liquid two-phase flow measurement, and relates to a mobile supersonic nozzle continuous measurement system.
Background
The supersonic nozzle is a core component in supersonic equipment and is widely used at presentWidely applied to the fields of petroleum, natural gas, chemical industry, pharmacy, energy conservation, environmental protection, aviation, aerospace and the like[1]. The supersonic cyclone separation technology is a multi-component gas condensation separation method combining cyclone separation technology and condensation separation technology[2]Supersonic nozzles are key components of supersonic separators that produce a coagulation effect. The condensation effect is that the saturated wet steam expands to supersonic speed in the supersonic nozzle when passing through the supersonic nozzle, low pressure and low temperature are generated, and liquid phase is condensed and nucleated[3]. The research method of the condensation phenomenon of the supersonic nozzle can adopt theoretical analysis, numerical simulation and experimental methods. Due to the complexity of the spontaneous condensation effect, the experimental method for researching the internal condensation characteristic of the supersonic nozzle is very important. Research on coagulation effect in supersonic nozzles requires that the pressure distribution of the nozzle tube flow field and the droplet size distribution are essential factors.
The traditional method for measuring the on-way pressure is to drill a series of pressure guide holes around the throat part of the nozzle and load a pressure sensor to measure the pressure[4]. Because a plurality of pressure guide holes need to be drilled in the traditional experimental device, the pressure guide holes are not in the same horizontal plane, the equivalence of pressure data near the condensation position of the throat part cannot be completely explained, and meanwhile, the types of pressure sensors at different sections are different, and the consistency is relatively poor. And because the size of the nozzle is small, the pressure guide holes cannot be arranged too much, so that the pressure at a plurality of pressure guide holes can be measured, and the continuous measurement of the pressure along the nozzle cannot be realized.
Disclosure of Invention
The invention provides a mobile supersonic nozzle continuous measurement experiment system. The device comprises a mobile supersonic nozzle experimental device and a software closed-loop control system. The experimental system can obtain the unsteady condensation flow characteristics of the supersonic nozzle.
In order to solve the problems in the prior art, the invention adopts the following technical scheme:
1. a mobile supersonic nozzle continuous measurement system comprises a mobile supersonic nozzle experimental device and a software closed-loop control system, wherein the mobile supersonic nozzle experimental device is composed of a mobile supersonic nozzle, a driving motor, an air source mechanism and an experimental data measurement mechanism; wherein: the movable supersonic nozzle comprises a nozzle base body, a rectangular nozzle and a transmission rod;
the software closed-loop control system comprises a static data acquisition module, a continuous dynamic data acquisition module, a motor drive control module and a database; wherein:
the static data acquisition module adjusts an air source through the acquired inlet pressure and temperature and humidity values to enable an experiment system to reach set experiment conditions;
the continuous dynamic data acquisition module analyzes and fuses data measured by the experimental data measurement mechanism to obtain the unsteady condensation flow characteristic of the supersonic nozzle;
the motor drive control module indirectly drives the rectangular nozzle to move, and the supersonic nozzle along-path pressure distribution and the droplet particle size measurement of the whole area are realized through the relative motion of the rectangular nozzle and the dynamic measurement part in the experimental data measurement mechanism;
the database records continuous high-capacity dynamic data acquired by the continuous dynamic data acquisition module.
The experimental data measuring mechanism comprises: the device comprises an inlet pressure sensor, an inlet temperature and humidity sensor, an outlet pressure sensor, an outlet temperature and humidity sensor, a high-frequency response pressure sensor and an extinction method liquid drop granularity measuring instrument; wherein:
the movable supersonic nozzle is connected with the driving motor through a transmission rod;
the inlet of the nozzle base body is connected with the air source mechanism, and an inlet pressure sensor and an inlet temperature and humidity sensor are mounted at the inlet of the nozzle base body;
the outlet pressure sensor and the outlet temperature and humidity sensor are mounted at the outlet of the nozzle base body;
a high-frequency-response pressure sensor is arranged on the inner wall of the nozzle base body;
and the front side and the rear side of the middle position of the nozzle matrix are provided with extinction method liquid drop granularity measuring instruments which are respectively a measuring instrument light transmitting part and a measuring instrument light receiving part.
The software closed-loop control system adopts the following algorithm to obtain the unsteady condensation flow characteristic of the supersonic nozzle:
s1, opening an air source mechanism, and adjusting an air source by the static data acquisition module through comparing preset inlet pressure, temperature and humidity values with a sensor display value to enable an experiment system to reach set experiment conditions;
s2, the motor driving control module controls the driving motor by adopting a mode of setting a pulse generator, sets pulse driving parameters, starts the driving motor, and drives the motor to rotate to enable the nozzle to move; the motor driving control module controls the motor precision by comparing the input pulse number with the motor receiving pulse number;
s3, outputting the pulse number required by one-time on-way pressure measurement by the motor driving control module, and after the rectangular nozzle moves in place once, starting to read the data of the high-frequency response pressure sensor and the data of the extinction method liquid drop granularity measuring instrument by the continuous dynamic data acquisition module;
s4, after the data reading is finished, the step S3 is circulated, the motor is controlled to rotate continuously to enable the rectangular nozzle to move continuously, all data collected by the continuous dynamic data collection module are analyzed and fused, and the on-way pressure distribution and the droplet size distribution of all areas of the nozzle can be obtained;
and S5, after the set output pulse number is finished, the digital pulse output unit in the continuous dynamic data acquisition module controls a Boolean button to trigger the motor to stop, and meanwhile, the local variable of the Boolean button in the data measurement block diagram is also effective, so that the while circulation in the data measurement structure is triggered to stop, and the data measurement is stopped.
Advantageous effects
1. The invention comprises a movable supersonic nozzle experimental device and a software closed-loop control system, can obtain the unsteady condensed flow pressure fluctuation characteristic of the supersonic nozzle through the relative motion of a rectangular nozzle and a high-frequency response pressure sensor, overcomes the defect of poor consistency of the conventional supersonic nozzle along-the-way pressure measurement, and measures the droplet size distribution of all regions of the supersonic nozzle by adopting an extinction method. The measured on-way pressure distribution and the droplet particle size distribution information are fused, so that the unsteady condensation flow characteristic of the supersonic nozzle can be obtained.
2. The invention realizes multi-channel data acquisition, automatic storage and out-of-limit alarm through a data acquisition program, and continuous large-capacity dynamic data is stored by establishing a database.
Drawings
FIG. 1 is a schematic cross-sectional view of a mobile supersonic nozzle experimental apparatus;
FIG. 2 is a flow chart of a software closed loop control system;
FIG. 3 is a schematic diagram of a data processing module.
Detailed Description
In order to further understand the features and technical means of the present invention and achieve specific objects and functions, the following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings.
The schematic section view of the mobile supersonic nozzle experimental device is shown in fig. 1, and the mobile supersonic nozzle experimental device comprises a mobile supersonic nozzle, a driving motor 2, an air source mechanism 3 and an experimental data measuring mechanism.
The traveling supersonic nozzle includes a nozzle base 11, a rectangular nozzle 12, and a drive rod 13. The rectangular nozzle 12 is fixedly connected with the transmission rod 13, and the rectangular nozzle 12 is driven to do translational motion through the translational motion of the transmission rod 13; the rectangular nozzle 12 and the transmission rod 13 are embedded in the inner cavity of the nozzle base body 11 in a sliding manner, and the inner cavity formed by the rectangular nozzle 12 and the nozzle base body 11 forms the cross sectional area of the movable supersonic nozzle; the cross-sectional area of the supersonic nozzle is changed continuously due to the translation of the rectangular nozzle 12, so that the moving type is realized.
The experimental data measuring mechanism comprises an inlet pressure sensor 41, an inlet temperature and humidity sensor 42, an outlet pressure sensor 43, an outlet temperature and humidity sensor 44, a high-frequency response pressure sensor 45 and an extinction method liquid drop granularity measuring instrument 46. The high-frequency response pressure sensor 45 is arranged in a pressure guide hole of the nozzle base body wall 11, the measurement of the transient pressure of the nozzle along the way is realized through the relative movement of the rectangular nozzle 12 and the high-frequency response pressure sensor 45, and the unsteady condensation flow pressure fluctuation characteristic of the supersonic nozzle can be obtained. The extinction method droplet size measuring instrument 46 is used for measuring droplets with the particle size of 0.01-1 mu m in the pipeline DN40-DN80, adopts a multi-wavelength extinction method to measure and invert the droplet size and concentration, and adopts a signal cross-correlation method to measure the droplet speed. As shown in fig. 1, extinction droplet size measuring instruments, which are a measuring instrument light transmitting portion and a measuring instrument light receiving portion, are installed on both front and rear sides of the center of the nozzle base 11. The basic principle is that a sending light source passes through a measuring area, the sending light can be attenuated due to the scattering phenomenon of water drops in the measuring area, and the size and the particle size distribution of the water drops are obtained through inverse calculation by measuring the sending light intensity and the transmission light intensity. Due to the relative motion between the extinction droplet sizer 46 and the rectangular nozzle 12, the droplet size distribution over the entire area of the supersonic nozzle can be measured. The measured on-way pressure distribution and the droplet particle size distribution information are fused, so that the unsteady condensation flow characteristic of the supersonic nozzle can be obtained.
Referring to fig. 2, the software closed-loop control system includes a static data acquisition module, a continuous dynamic data acquisition module, a database (as shown in fig. 3), and a motor drive control module; the software closed-loop control system adopts the following algorithm to obtain the unsteady condensation flow characteristic of the supersonic nozzle:
s1, opening an air source mechanism, and adjusting an air source by the static data acquisition module through comparing preset inlet pressure, temperature and humidity values with a sensor display value to enable an experiment system to reach set experiment conditions;
s2, the motor driving control module controls the driving motor by adopting a mode of setting a pulse generator, sets pulse driving parameters, starts the driving motor, and drives the motor to rotate to enable the nozzle to move; the motor driving control module controls the motor precision by comparing the input pulse number with the motor receiving pulse number;
s3, outputting the pulse number required by one-time on-way pressure measurement by the motor driving control module, and after the rectangular nozzle moves in place once, starting to read the data of the high-frequency response pressure sensor and the data of the extinction method liquid drop granularity measuring instrument by the continuous dynamic data acquisition module;
s4, after the data reading is finished, the step S3 is circulated, the motor is controlled to rotate continuously to enable the rectangular nozzle to move continuously, all data collected by the continuous dynamic data collection module are analyzed and fused, and the on-way pressure distribution and the droplet size distribution of all areas of the nozzle can be obtained;
and S5, after the set output pulse number is finished, the digital pulse output unit in the continuous dynamic data acquisition module controls a Boolean button to trigger the motor to stop, and meanwhile, the local variable of the Boolean button in the data measurement block diagram is also effective, so that the while circulation in the data measurement structure is triggered to stop, and the data measurement is stopped.
Referring to fig. 3, the static data acquisition module adjusts the gas source according to the acquired inlet pressure and temperature and humidity values, so that the experimental system reaches the set experimental conditions; the continuous dynamic data acquisition module analyzes and fuses data measured by the experimental data measurement mechanism to obtain the unsteady condensation flow characteristic of the supersonic nozzle; the data acquisition, automatic storage and out-of-limit alarm of multiple channels are realized through a data acquisition program, and the continuous high-capacity dynamic data is stored by establishing a database.
The above embodiments are intended to explain the technical solutions of the device structure, the control strategy, etc. of the present invention in detail, and the present invention is not limited to the above implementation routines, but it is within the scope of the present invention that a person of ordinary skill in the art should modify and replace the present invention based on the above principles and spirit.
Claims (3)
1. A mobile supersonic nozzle continuous measurement system comprises a mobile supersonic nozzle experimental device and a software closed-loop control system, and is characterized in that:
the mobile supersonic nozzle experimental device consists of a mobile supersonic nozzle, a driving motor, an air source mechanism and an experimental data measuring mechanism; wherein: the movable supersonic nozzle comprises a nozzle base body, a rectangular nozzle and a transmission rod;
the software closed-loop control system comprises a static data acquisition module, a continuous dynamic data acquisition module, a motor drive control module and a database; wherein:
the static data acquisition module adjusts an air source through the acquired inlet pressure and temperature and humidity values to enable an experiment system to reach set experiment conditions;
the continuous dynamic data acquisition module analyzes and fuses data measured by the experimental data measurement mechanism to obtain the unsteady condensation flow characteristic of the supersonic nozzle;
the motor drive control module indirectly drives the rectangular nozzle to move, and the supersonic nozzle along-path pressure distribution and the droplet particle size measurement of the whole area are realized through the relative motion of the rectangular nozzle and the dynamic measurement part in the experimental data measurement mechanism;
the database records continuous high-capacity dynamic data acquired by the continuous dynamic data acquisition module.
2. The mobile supersonic nozzle continuous measurement system of claim 1, wherein:
the experimental data measuring mechanism comprises: the device comprises an inlet pressure sensor, an inlet temperature and humidity sensor, an outlet pressure sensor, an outlet temperature and humidity sensor, a high-frequency response pressure sensor and an extinction method liquid drop granularity measuring instrument; wherein:
the movable supersonic nozzle is connected with the driving motor through a transmission rod;
the inlet of the nozzle base body is connected with the air source mechanism, and an inlet pressure sensor and an inlet temperature and humidity sensor are mounted at the inlet of the nozzle base body;
the outlet pressure sensor and the outlet temperature and humidity sensor are mounted at the outlet of the nozzle base body;
a high-frequency-response pressure sensor is arranged on the inner wall of the nozzle base body;
and the front side and the rear side of the middle position of the nozzle matrix are provided with extinction method liquid drop granularity measuring instruments which are respectively a measuring instrument light transmitting part and a measuring instrument light receiving part.
3. The mobile supersonic nozzle continuous measurement system according to claim 2, wherein: the software closed-loop control system adopts the following algorithm to obtain the unsteady condensation flow characteristic of the supersonic nozzle:
s1, opening an air source mechanism, and adjusting an air source by the static data acquisition module through comparing preset inlet pressure, temperature and humidity values with a sensor display value to enable an experiment system to reach set experiment conditions;
s2, the motor driving control module controls the driving motor by adopting a mode of setting a pulse generator, sets pulse driving parameters, starts the driving motor, and drives the motor to rotate to enable the nozzle to move; the motor driving control module controls the positioning precision of the motor by comparing the input pulse number with the motor receiving pulse number;
s3, outputting the pulse number required by one-time on-way pressure measurement by the motor driving control module, and after the rectangular nozzle moves in place once, starting to read the data of the high-frequency response pressure sensor and the data of the extinction method liquid drop granularity measuring instrument by the continuous dynamic data acquisition module;
s4, after the data reading is finished, the step S3 is circulated, the motor is controlled to rotate continuously to enable the rectangular nozzle to move continuously, all data collected by the continuous dynamic data collection module are analyzed and fused, and the on-way pressure distribution and the droplet size distribution of all areas of the nozzle can be obtained;
and S5, after the set output pulse number is finished, the digital pulse output unit in the continuous dynamic data acquisition module controls a Boolean button to trigger the motor to stop, and meanwhile, the local variable of the Boolean button in the data measurement block diagram is also effective, so that the while circulation in the data measurement structure is triggered to stop, and the data measurement is stopped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911229750.5A CN111122395B (en) | 2019-12-04 | 2019-12-04 | Mobile supersonic nozzle continuous measurement system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911229750.5A CN111122395B (en) | 2019-12-04 | 2019-12-04 | Mobile supersonic nozzle continuous measurement system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111122395A true CN111122395A (en) | 2020-05-08 |
| CN111122395B CN111122395B (en) | 2022-05-13 |
Family
ID=70497442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911229750.5A Active CN111122395B (en) | 2019-12-04 | 2019-12-04 | Mobile supersonic nozzle continuous measurement system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111122395B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113390765A (en) * | 2021-06-30 | 2021-09-14 | 中国人民解放军战略支援部队航天工程大学 | Research method for influence of shock wave on evaporation process of fuel liquid drops under supersonic airflow |
Citations (35)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB721364A (en) * | 1951-06-29 | 1955-01-05 | Conservatoire Nat Des Arts & M | Variable section nozzle neck |
| US3524344A (en) * | 1968-09-19 | 1970-08-18 | Scans Associates Inc | Apparatus for testing carburetors |
| GB1414642A (en) * | 1972-07-13 | 1975-11-19 | Wf Controls Ltd | Pressure transmitting device |
| GB8408623D0 (en) * | 1984-04-04 | 1984-05-16 | Atomic Energy Authority Uk | Fluidic pumping systems |
| US4790194A (en) * | 1987-05-01 | 1988-12-13 | Westinghouse Electric Corp. | Flow measurement device |
| US4796651A (en) * | 1988-03-30 | 1989-01-10 | LeRoy D. Ginn | Variable gas volume flow measuring and control methods and apparatus |
| AU5058990A (en) * | 1989-03-02 | 1990-09-06 | Exxon Research And Engineering Company | Passive acoustics process to monitor fluidized bed level |
| US5211057A (en) * | 1991-08-08 | 1993-05-18 | The United States Of America As Represented By The United States National Aeronautics And Space Administration | Nozzle diffuser for use with an open test section of a wind tunnel |
| US5365795A (en) * | 1993-05-20 | 1994-11-22 | Brower Jr William B | Improved method for determining flow rates in venturis, orifices and flow nozzles involving total pressure and static pressure measurements |
| US5487624A (en) * | 1993-02-22 | 1996-01-30 | I.T.M. Corporation | Powder feeding apparatus, electrostatic powder coating apparatus and powder flow-rate measuring apparatus |
| CN1167359A (en) * | 1996-03-05 | 1997-12-10 | 东芝株式会社 | Inspection apparatus using measuring device, arm apparatus, and cylindrical surface circumferential movement apparatus |
| EA199800153A1 (en) * | 1995-08-24 | 1998-10-29 | Ф.Л.Смидт энд Ко.А/С | Method and apparatus for treating a bed of particulate material |
| WO1998059233A1 (en) * | 1997-06-23 | 1998-12-30 | Luminex Corporation | Interlaced lasers for multiple fluorescence measurement |
| US6053037A (en) * | 1997-04-18 | 2000-04-25 | Mitsubishi Denk Kabushiki Kaisha | Spray distribution measuring device and measuring method |
| US6431014B1 (en) * | 1999-07-23 | 2002-08-13 | Msp Corporation | High accuracy aerosol impactor and monitor |
| JP2006162417A (en) * | 2004-12-07 | 2006-06-22 | Tsukasa Sokken Co Ltd | Total pressure/static pressure measuring venturi system flow measuring device |
| US20060225489A1 (en) * | 2005-04-12 | 2006-10-12 | Giles Durham K | System and method for determining atomization characteristics of spray liquids |
| CN101122542A (en) * | 2006-08-08 | 2008-02-13 | 上海理工大学 | Steam condenser throat minisize flexible test device |
| WO2009094630A1 (en) * | 2008-01-25 | 2009-07-30 | Schlumberger Technology Corporation | In-line composition and volumetric analysis of vent gases and flooding of the annular space of flexible pipe |
| CN101720420A (en) * | 2007-06-30 | 2010-06-02 | 恩德斯+豪斯流量技术股份有限公司 | Measuring system for a medium flowing in a process line |
| CN101876562A (en) * | 2009-12-14 | 2010-11-03 | 清华大学 | Cone governor type differential pressure flowmeter |
| US20100309445A1 (en) * | 2008-02-20 | 2010-12-09 | Schultz Geoffrey Alan | Gas Gauge Compatible With Vacuum Environments |
| US20110203350A1 (en) * | 2008-11-06 | 2011-08-25 | Stanislaw Kaminski | Method for measuring dust concentration in flowing gas and device for measuring dust concentration in flowing gas |
| US20110217208A1 (en) * | 2010-03-05 | 2011-09-08 | Applied Materials, Inc. | Measuring flow properties of multiple gas nozzles of a gas distributor |
| US20130186098A1 (en) * | 2012-01-25 | 2013-07-25 | Hamilton Sundstrand Corporation | Fluid flow control device and method |
| CN104155473A (en) * | 2014-08-12 | 2014-11-19 | 南京航空航天大学 | Wind speed and wind direction sensing device |
| CN104535122A (en) * | 2014-12-31 | 2015-04-22 | 西安交通大学 | Critical flow venturi nozzle with throat inserting plate and with adjustable throat area |
| CN105157948A (en) * | 2015-09-14 | 2015-12-16 | 南京航空航天大学 | Flow test system suitable for supersonic/hypersonic channel and test method |
| CN105890720A (en) * | 2016-04-28 | 2016-08-24 | 西安石油大学 | Testing and experimental method of supersonic gas-liquid separators |
| WO2016174691A1 (en) * | 2015-04-29 | 2016-11-03 | Imat S.R.L. Unipersonale | Device that allows to assign the correct orifice of a venturi nozzle steam trap without removing it from the circuit in which it is inserted |
| CN106441781A (en) * | 2016-09-12 | 2017-02-22 | 中国人民解放军国防科学技术大学 | Flow rate measurable air intake duct throttling device |
| CN107121178A (en) * | 2016-02-27 | 2017-09-01 | 山东大学（威海） | A kind of gas flow measurement experimental provision of flow control |
| CN108525443A (en) * | 2017-03-01 | 2018-09-14 | 中国石油化工股份有限公司 | A kind of venturi washing sterilizer |
| CN109030199A (en) * | 2018-05-22 | 2018-12-18 | 湖南理工学院 | Flexible retaining wall Earth Pressure Models test method |
| CN109827620A (en) * | 2018-12-26 | 2019-05-31 | 潍柴动力股份有限公司 | A kind of Venturi meter |
-
2019
- 2019-12-04 CN CN201911229750.5A patent/CN111122395B/en active Active
Patent Citations (37)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB721364A (en) * | 1951-06-29 | 1955-01-05 | Conservatoire Nat Des Arts & M | Variable section nozzle neck |
| US3524344A (en) * | 1968-09-19 | 1970-08-18 | Scans Associates Inc | Apparatus for testing carburetors |
| GB1414642A (en) * | 1972-07-13 | 1975-11-19 | Wf Controls Ltd | Pressure transmitting device |
| GB8408623D0 (en) * | 1984-04-04 | 1984-05-16 | Atomic Energy Authority Uk | Fluidic pumping systems |
| US4790194A (en) * | 1987-05-01 | 1988-12-13 | Westinghouse Electric Corp. | Flow measurement device |
| US4796651A (en) * | 1988-03-30 | 1989-01-10 | LeRoy D. Ginn | Variable gas volume flow measuring and control methods and apparatus |
| AU5058990A (en) * | 1989-03-02 | 1990-09-06 | Exxon Research And Engineering Company | Passive acoustics process to monitor fluidized bed level |
| US5211057A (en) * | 1991-08-08 | 1993-05-18 | The United States Of America As Represented By The United States National Aeronautics And Space Administration | Nozzle diffuser for use with an open test section of a wind tunnel |
| US5487624A (en) * | 1993-02-22 | 1996-01-30 | I.T.M. Corporation | Powder feeding apparatus, electrostatic powder coating apparatus and powder flow-rate measuring apparatus |
| US5365795A (en) * | 1993-05-20 | 1994-11-22 | Brower Jr William B | Improved method for determining flow rates in venturis, orifices and flow nozzles involving total pressure and static pressure measurements |
| EA199800153A1 (en) * | 1995-08-24 | 1998-10-29 | Ф.Л.Смидт энд Ко.А/С | Method and apparatus for treating a bed of particulate material |
| CN1167359A (en) * | 1996-03-05 | 1997-12-10 | 东芝株式会社 | Inspection apparatus using measuring device, arm apparatus, and cylindrical surface circumferential movement apparatus |
| US6053037A (en) * | 1997-04-18 | 2000-04-25 | Mitsubishi Denk Kabushiki Kaisha | Spray distribution measuring device and measuring method |
| WO1998059233A1 (en) * | 1997-06-23 | 1998-12-30 | Luminex Corporation | Interlaced lasers for multiple fluorescence measurement |
| US6431014B1 (en) * | 1999-07-23 | 2002-08-13 | Msp Corporation | High accuracy aerosol impactor and monitor |
| JP2006162417A (en) * | 2004-12-07 | 2006-06-22 | Tsukasa Sokken Co Ltd | Total pressure/static pressure measuring venturi system flow measuring device |
| US20060225489A1 (en) * | 2005-04-12 | 2006-10-12 | Giles Durham K | System and method for determining atomization characteristics of spray liquids |
| CN101122542A (en) * | 2006-08-08 | 2008-02-13 | 上海理工大学 | Steam condenser throat minisize flexible test device |
| CN101720420A (en) * | 2007-06-30 | 2010-06-02 | 恩德斯+豪斯流量技术股份有限公司 | Measuring system for a medium flowing in a process line |
| WO2009094630A1 (en) * | 2008-01-25 | 2009-07-30 | Schlumberger Technology Corporation | In-line composition and volumetric analysis of vent gases and flooding of the annular space of flexible pipe |
| US20100309445A1 (en) * | 2008-02-20 | 2010-12-09 | Schultz Geoffrey Alan | Gas Gauge Compatible With Vacuum Environments |
| US20110203350A1 (en) * | 2008-11-06 | 2011-08-25 | Stanislaw Kaminski | Method for measuring dust concentration in flowing gas and device for measuring dust concentration in flowing gas |
| CN101876562A (en) * | 2009-12-14 | 2010-11-03 | 清华大学 | Cone governor type differential pressure flowmeter |
| US20110217208A1 (en) * | 2010-03-05 | 2011-09-08 | Applied Materials, Inc. | Measuring flow properties of multiple gas nozzles of a gas distributor |
| CN102804354A (en) * | 2010-03-05 | 2012-11-28 | 应用材料公司 | Measuring flow properties of multiple gas nozzles of a gas distributor |
| US20130186098A1 (en) * | 2012-01-25 | 2013-07-25 | Hamilton Sundstrand Corporation | Fluid flow control device and method |
| CN104155473A (en) * | 2014-08-12 | 2014-11-19 | 南京航空航天大学 | Wind speed and wind direction sensing device |
| CN104535122A (en) * | 2014-12-31 | 2015-04-22 | 西安交通大学 | Critical flow venturi nozzle with throat inserting plate and with adjustable throat area |
| WO2016174691A1 (en) * | 2015-04-29 | 2016-11-03 | Imat S.R.L. Unipersonale | Device that allows to assign the correct orifice of a venturi nozzle steam trap without removing it from the circuit in which it is inserted |
| CN105157948A (en) * | 2015-09-14 | 2015-12-16 | 南京航空航天大学 | Flow test system suitable for supersonic/hypersonic channel and test method |
| CN107121178A (en) * | 2016-02-27 | 2017-09-01 | 山东大学（威海） | A kind of gas flow measurement experimental provision of flow control |
| CN107270982A (en) * | 2016-02-27 | 2017-10-20 | 山东大学（威海） | A kind of gas flow measurement experimental provision of measurement apparatus movement |
| CN105890720A (en) * | 2016-04-28 | 2016-08-24 | 西安石油大学 | Testing and experimental method of supersonic gas-liquid separators |
| CN106441781A (en) * | 2016-09-12 | 2017-02-22 | 中国人民解放军国防科学技术大学 | Flow rate measurable air intake duct throttling device |
| CN108525443A (en) * | 2017-03-01 | 2018-09-14 | 中国石油化工股份有限公司 | A kind of venturi washing sterilizer |
| CN109030199A (en) * | 2018-05-22 | 2018-12-18 | 湖南理工学院 | Flexible retaining wall Earth Pressure Models test method |
| CN109827620A (en) * | 2018-12-26 | 2019-05-31 | 潍柴动力股份有限公司 | A kind of Venturi meter |
Non-Patent Citations (3)
| Title |
|---|
| WEGENER等: "experiments on condensation of water vapor by homogeneous nucleation in nozzles", 《THE PHYSICS OF FLUIDS》 * |
| 严俊杰等: "变截面通道内超音速两相流升压过程的研究", 《西安交通大学学报》 * |
| 王超等: "湿空气超音速凝结实验平台设计", 《仪器仪表学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113390765A (en) * | 2021-06-30 | 2021-09-14 | 中国人民解放军战略支援部队航天工程大学 | Research method for influence of shock wave on evaporation process of fuel liquid drops under supersonic airflow |
| CN113390765B (en) * | 2021-06-30 | 2022-09-23 | 中国人民解放军战略支援部队航天工程大学 | Method for researching influence of shock wave on evaporation process of fuel liquid drops under supersonic airflow |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111122395B (en) | 2022-05-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100575909C (en) | Blower performance test system and method for testing thereof | |
| CN111122395B (en) | Mobile supersonic nozzle continuous measurement system | |
| Grossir et al. | Hypersonic boundary layer transition on a 7 degree half-angle cone at Mach 10 | |
| CN103398835A (en) | System and method for testing transient air film cooling heat flow on basis of hypersonic-velocity gun air tunnel | |
| CN108318400A (en) | Shape is divided to intersect fracture seepage experimental system and experimental method | |
| CN107167409A (en) | 3D printing point shape Single Fracture seepage flow experiment system and experimental method under Multiple experiments operating mode coupling | |
| CN105548018B (en) | The measuring device and measuring method of solid content in a kind of solid-liquid system | |
| Papamoschou | Experimental investigation of heterogeneous compressible shear layers | |
| CN106918579A (en) | Multichannel optical fiber type surface plasma resonance spectrometer | |
| CN204203039U (en) | A kind of spray characteristics parameter detection device | |
| CN108507905A (en) | A kind of micro fluid viscosity measurement technology sprayed using drop | |
| CN106443061A (en) | Micro-flow-velocity optical measuring apparatus based on optical fiber F-P cavity | |
| CN106965395A (en) | The supersonic detection method and device of abscess-size in micro foaming injection moulding product | |
| Turpin et al. | Supersonic cavity flow subjected to continuous and transient leading-edge blowing | |
| CN105665046B (en) | A kind of fast temperature rises to micro flow chip system | |
| CN109470400A (en) | Measure the method and device of injection molding machine cavity pressure indirectly by sonication | |
| CN107389502A (en) | A kind of method and system for measuring liquid viscosity | |
| CN204287033U (en) | A kind of hydrate based on optics generates monitoring system | |
| CN109723699B (en) | Device and method for testing front-stage flow coefficient of nozzle baffle servo valve | |
| CN207662773U (en) | Shape is divided to intersect fracture seepage experimental system | |
| CN103728912B (en) | The control of a kind of induction heat bubble underwater miniature driver and test system | |
| Kumar et al. | Laminar length of a non-Newtonian fluid jet | |
| CN213041472U (en) | Device for generating large-scale high-speed wind tunnel PIV tracer particles and remotely controlling flow | |
| CN109142675A (en) | A kind of micron capillary column gas-liquid dynamic phase interface test device | |
| CN109100485B (en) | A kind of micron capillary column gas-liquid dynamic phase interface test macro |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |