CN202614499U - Device for measuring local interface parameter of two-phase flow through optical probe method - Google Patents
Device for measuring local interface parameter of two-phase flow through optical probe method Download PDFInfo
- Publication number
- CN202614499U CN202614499U CN 201220171388 CN201220171388U CN202614499U CN 202614499 U CN202614499 U CN 202614499U CN 201220171388 CN201220171388 CN 201220171388 CN 201220171388 U CN201220171388 U CN 201220171388U CN 202614499 U CN202614499 U CN 202614499U
- Authority
- CN
- China
- Prior art keywords
- probe
- optical fiber
- fiber coupling
- type optical
- coupling mechanism
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The purpose of the utility model is to provide a device for measuring local interface parameters of a two-phase flow through an optical probe method. The device comprises a laser source, an photoelectric conversion and amplification device, an optical probe and a probe positioning and driving mechanism, wherein the laser source and the probe positioning and driving mechanism are respectively arranged at two sides of the photoelectric conversion and amplification device, the optical probe is mounted on the probe positioning and driving mechanism, a light path is formed by the laser source, the photoelectric conversion and amplification device, the optical probe and the probe positioning and driving mechanism, and the optical probe is placed in fluid to be measured. The device is capable of accurately collecting local interface parameters in a two-phase flow system in real time by means of reasonable design of the system and the equipment, and the optical probe adopts a flat end face probe, thereby being simple in manufacture process and low in construction cost. High temperature resistant rubber sealing is adopted to enable the probe to be used for measuring local interface parameters in a boiling channel and achieve the effect that the device is multipurpose.
Description
Technical field
The utility model relates to the measurement mechanism of a kind of thermal-hydraulic and polyphasic flow local parameter field of measuring technique.
Background technology
Gas (vapour) liquid two-phase is moving to be present in the actual industrial process such as thermal power engineering, oil gas transportation, chemical engineering and nuclear engineering widely.Equipment Design such as water tube boiler, power producer and steam generator, bubble type chemical reactor and operation all be unable to do without the theoretical direction of diphasic flow and boiling heat transfer.Industrial powers had all dropped into lot of manpower and material resources once and had carried out two-phase flow thermal-hydraulic experiment research in the world, constantly the two-phase flow measurement technology was improved.Early stage research is primarily aimed at overall parameter such as flow, pressure drop, temperature, flow pattern and average void fraction, is similar to think that gas-liquid two-phase radially evenly distributes or adopts certain hypothesis to obtain the cross section mean value of some parameters in the position.Yet along with the mankind to the understanding of diphasic flow essence and the development of measuring technology, research shows in the two-phase flow system gas phase or gas-liquid interface radially position and non-uniform Distribution.The non-uniform Distribution of phase interface parameter can cause the variation of localized heat transfer mass transfer ability; In flow boiling even bring localized heat transfer to worsen; Thereby design and operation to diphasic flow and boiling heat transfer relevant device bring difficulty, therefore must deeply study the two-phase flow system inner structure.
Thereby through scientific experiment scientific hypothesis is verified and to be set up the only way which must be passed that new theory is scientific research.Diphasic flow and the research of boiling heat transfer mechanism at present is still immature, mainly obtains rule-of-thumb relation to instruct practical applications through experiment.Along with the human experimentation development of technology, correlative study refine to local interface parameter from the overall parameter of macroscopic view.Accurately obtain liquid-gas interface parameter in the two-phase flow system, like void fraction, bubble frequency, the distribution character of interfacial area concentration and bubble equivalent diameter etc., significant to research diphasic flow and boiling mechanism.Simultaneously two fluid models be generally acknowledge at present near the two-phase flow model of actual physics process; But construct the important parameter of interface transport equation in two fluid models---interfacial area concentration also needs to obtain through experiment at present; Therefore, accurately Measurement of Two-phase interfacial area concentration also is the key that can two fluid models obtain practical engineering application.
Measurement to interfacial area volume concentration and void fraction has high-speed photography method, chemical method, ray attenuation method and sonde method etc., and wherein first three belongs to the average magnitude measuring method, can only obtain cross section mean value, can not provide radially local interfacial concentration and distribute.And when the bubble ratio comparatively dense, owing to block each other, precision such as high speed video process and ray attenuation method can't guarantee.Sonde method is to be widely used in the method that local interface parameter is measured at present; Mainly be divided into two types: one type is conducting probe method (as: Zhao D J; Guo L J; Lin C Z, et al.An experimental study on local interfacial area concentration using a double-sensor probe.Int.J.Heat Mass Transfer 48 (2005) 1926-1935; Kim S; Ishii M; Wu Q et al.Interfacial structures of confined air-water two-phase bubbly flow.Experimental Thermal Fluid Science 26 (2002) 461-472), the conducting probe complex manufacturing technology that this type experimental provision adopts, the end of probe insulation technology is still immature; And adopt electric signal to distinguish the interference that receives external electromagnetic field easily, bring difficulty to measurement; Another kind of is optical probe method (as: Barrau E; Riviere N; Poupot C, et al.Single and double optical probes in air-water two-phase flows:real time signal processing an sensor performance.Int.J.Multiphase Flow.25 (1999) 229-256; Sun Qi, Zhao Hua, Yang Ruichang. the distribution character of bubble uphill process [J] chemical industry journal in the static liquid phase; 2003,54 (9): 1310-1314), the optical probe response frequency that this type experimental provision adopts is high; Antijamming capability is strong, but also weak point is arranged, and mainly shows as: conical surface fibre-optical probe complex manufacturing technology; Need are bought from special manufacturing factory, and this type optical fiber is lacked, involved great expense serviceable life, brings huge economic pressures to research.Simultaneously the diphasic flow test-bed is generally all taller and bigger in the major path, when regulating optical probe, how to accomplish accurate localization and moves, and how to realize that the synchronous conversion etc. of Long-distance Control and multichannel photosignal all is the problem that needs solution.Therefore the probe measurement method of mentioning more than is not suitable for large-scale popularization and uses.
Summary of the invention
The purpose of the utility model is to provide realization to the local interface parameter device of the accurate optical probe method Measurement of Two-phase of measuring of the local interface parameter of two-phase flow.
The purpose of the utility model is achieved in that
The local interface parameter device of the utility model optical probe method Measurement of Two-phase; It is characterized in that: comprise lasing light emitter, opto-electronic conversion and multiplying arrangement, optical probe, probe location and driving mechanism; Lasing light emitter, probe location and driving mechanism are arranged in the both sides of opto-electronic conversion and multiplying arrangement; Optical probe is installed on probe location and the driving mechanism; Lasing light emitter, opto-electronic conversion and multiplying arrangement, optical probe, probe location and driving mechanism are formed light path, and optical probe places in the detected fluid.
The utility model can also comprise:
1, described opto-electronic conversion and multiplying arrangement comprise y-type optical fiber coupling mechanism, photovoltaic converter, amplifier; Described y-type optical fiber coupling mechanism comprises first-Di, four y-type optical fiber coupling mechanisms; Each y-type optical fiber coupling mechanism is two output terminals of an input end; Before the output terminal of the first y-type optical fiber coupling mechanism places second, third y-type optical fiber coupling mechanism input end; The 4th y-type optical fiber coupling mechanism first output end face is to the first output terminal setting of second fiber coupler, and the 4th y-type optical fiber coupling mechanism second output end face is arranged to photovoltaic converter, the arrangement of mechanism that the 4th y-type optical fiber coupling mechanism input end face is formed to optical probe, probe location and driving mechanism; Photovoltaic converter connects amplifier, and amplifier connects the data acquisition system (DAS) that is used for acquired signal.
2, also comprise the 5th y-type optical fiber coupling mechanism; Described optical probe and probe location and driving mechanism have two groups; The 4th y-type optical fiber coupling mechanism is located with first group of optical probe and probe and driving mechanism cooperates formation first mechanism; The 5th y-type optical fiber coupling mechanism is located with second group of optical probe and probe and driving mechanism cooperates formation second mechanism; First output end face of the 5th y-type optical fiber coupling mechanism is to the second output terminal setting of second fiber coupler, and second output end face of the 5th y-type optical fiber coupling mechanism is arranged to photovoltaic converter.
3, also comprise the 5th, the 6th y-type optical fiber coupling mechanism, described optical probe and probe location and driving mechanism have three groups; The 4th y-type optical fiber coupling mechanism is located with first group of optical probe and probe and driving mechanism cooperates formation first mechanism; The 5th y-type optical fiber coupling mechanism is located with second group of optical probe and probe and driving mechanism cooperates formation second mechanism, and the 6th y-type optical fiber coupling mechanism is located with the 3rd group of optical probe and probe and driving mechanism cooperates formation the 3rd mechanism; First output end face of the 5th y-type optical fiber coupling mechanism is to the second output terminal setting of second fiber coupler, and second output end face of the 5th y-type optical fiber coupling mechanism is arranged to photovoltaic converter; First output end face of the 6th y-type optical fiber coupling mechanism is to the first output terminal setting of the 3rd fiber coupler, and second output end face of the 6th y-type optical fiber coupling mechanism is arranged to photovoltaic converter.
4, also comprise the 5th-Di seven y-type optical fiber coupling mechanisms, described optical probe and probe location and driving mechanism have four groups; The 4th y-type optical fiber coupling mechanism is located with first group of optical probe and probe and driving mechanism cooperates formation first mechanism; The 5th y-type optical fiber coupling mechanism is located with second group of optical probe and probe and driving mechanism cooperates formation second mechanism; The 6th y-type optical fiber coupling mechanism is located with the 3rd group of optical probe and probe and driving mechanism cooperates formation the 3rd mechanism, and the 7th y-type optical fiber coupling mechanism is located with the 4th group of optical probe and probe and driving mechanism cooperates formation the 4th mechanism; First output end face of the 5th y-type optical fiber coupling mechanism is to the second output terminal setting of second fiber coupler, and second output end face of the 5th y-type optical fiber coupling mechanism is arranged to photovoltaic converter; First output end face of the 6th y-type optical fiber coupling mechanism is to the first output terminal setting of the 3rd fiber coupler; Second output end face of the 6th y-type optical fiber coupling mechanism is arranged to photovoltaic converter; First output end face of the 7th y-type optical fiber coupling mechanism is to the second output terminal setting of the 3rd fiber coupler, and second output end face of the 7th y-type optical fiber coupling mechanism is arranged to photovoltaic converter.
5, described optical probe has four layers of stainless-steel tube and increases step by step along the main flow direction diameter; The outermost layer stainless-steel tube supports perpendicular to fluid flow direction as probe body, ecto-entad second layer stainless-steel tube crooked 90 ° so that the probe fibre core of inner layer stainless steel tube and optical probe is parallel to fluid flow direction.
6, described probe location and driving mechanism comprise control motor, screw mandrel, slide rail, linear module, stationary installation, front travel switch, back travel switch; The control motor connects slide rail through screw mandrel; Linear module is installed in slide rail upper edge slide rail and moves; Stationary installation is fixed on slide rail one end the container of slide rail and splendid attire detected fluid is fixed together; Optical probe is installed on the linear module, and the extreme position of linear module is controlled at the two ends that front travel switch, back travel switch are installed in slide rail respectively.
7, also comprise servo-driver, probe location and driving mechanisms control device, described probe location and driving mechanisms control device are scrambler 5, and servo-driver is installed in and connects control motor and probe location and driving mechanisms control device on the slide rail.
The advantage of the utility model is:
1, the utility model makes experimental provision can gather local interface parameter in the two-phase flow system in real time accurately through the appropriate design of system and equipment.
2, the optical probe that designs and produces of the utility model adopts the planar end surface probe, and manufacture craft is simple, and is cheap; Adopt the high-temperature plastic sealing then can probe be used for the measurement of local interface parameter in the boiling channel, implement device is used more.
3, the four-way opto-electronic conversion that designs and produces of the utility model and the multiplying arrangement scalable that can realize enlargement ratio and the controllability of liquid phase base value; Four optical circuits are separate, can show output voltage values in real time on the control panel.
4, the utility model designed probe location and driving mechanism can be realized the accurate location and the driving of probe, and minimum moving interval is 1mm, and bearing accuracy reaches 0.02mm.Probe is accurately located and is moved and can realize remote control and regulation.Change the axial location of location and driving mechanism, the distribution that can also measure different axial locations realizes using one more.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the optical probe structural representation of the utility model;
Fig. 3 is the opto-electronic conversion multiplying arrangement structural representation of the utility model;
Fig. 4 is the utility model probe location and driving mechanism structure synoptic diagram.
Embodiment
For example the utility model is done description in more detail below in conjunction with accompanying drawing:
In conjunction with Fig. 1～4; The local interface parameter device of a kind of optical probe method Measurement of Two-phase mainly comprises lasing light emitter, four-way opto-electronic conversion and multiplying arrangement, fiber coupler, optical probe, probe location and driving mechanism, probe location and driving mechanisms control device, photoelectric commutator, polystage amplifier, high-speed data acquistion system, computing machine and corresponding acquisition software and experimental section.
Described optical probe adopts the single-mode fiber of 9 microns of core diameters, and covering is 125 microns; Fiber connector adopts circular angle APC joint.Optical fiber is with four layers of stainless-steel tube outward, makes probe increase step by step along main flow direction, both can reduce the interference of stream field, the vibrations that can make probe have enough intensity opposing bubbles to cause again.The outermost layer stainless-steel tube supports as probe body, perpendicular to flow direction; Crooked 90 ° of ecto-entad second layer stainless-steel tube is so that inner layer stainless steel tube and probe fibre core are parallel to flow direction.Probe end face horizontal spacing and streamwise fore-and-aft clearance adopt reading microscope to record, and are respectively 0.5mm and 1.1mm.The sealing of waterproof strong glue is adopted in the stainless-steel tube junction, to prevent that fluid working substance is revealed along probe in the experimental section.
Described four-way opto-electronic conversion and multiplying arrangement are the instruments of an autonomous Design and manufacturing, by fiber coupler, and photoelectric commutator, polystage amplifier and associated button and light, electric loop are formed.The y-type optical fiber coupling mechanism can be divided into two groups with incident light, can from optical fiber, isolate reflected light simultaneously; Photoelectric commutator is a light activated element, can convert light signal into electric signal, and output electric signal and light intensity are directly proportional; Polystage amplifier can amplify voltage signal, can realize the adjustable of enlargement ratio simultaneously.Four-way opto-electronic conversion and multiplying arrangement can supply four road optical fiber to use simultaneously, can realize four probe tip conversion of signals and amplifications, and electronic component response frequency minimum is 15kHz in it, satisfies common two-phase flow local parameter response frequency demand.
Described probe location and driving mechanism mainly are made up of controller, scrambler 5, servo-driver, servomotor and linear module five parts; Its middle controller and scrambler 5, servo-driver and servomotor have constituted a closed-loop system jointly, realize that probe is in the ducted accurately mobile and location of diphasic flow.Through the mega128 single-chip microcomputer in the controller, control probe radially motion process in pipeline.This device has utilized the principle of light current control forceful electric power, adopts the PID regulative mode, drives servomotor through servo-driver, and the PWM ripple of its output is controlled the velocity of rotation and the acceleration of motor, and motor is had the effect of overcurrent protection.Linear module is by motor-driven motion platform, and servomotor joins with direct coupled mode in inside and screw mandrel through shaft coupling, and converts rotatablely moving of motor output into rectilinear motion through ball-screw and slide rail.Intermediate plate is housed on slide rail, is used for fixing probe, and the drive probe is done rectilinear motion.The total shift motion of module reaches 100mm, and setting accuracy is 0.02mm repeatedly.Servomotor is mainly located by pulse.In the rear end of motor, photoelectric encoder 5 is housed, its revolution calibration 500 lines; To angle of the every rotation of motor, coding all can send a pulse, and feeds back to servo-driver; The pulse shaping of accepting with servomotor concord; Like this, system can control the rotation of motor very accurately according to the pulse of sending and receiving.Two lead limit switches also are housed on the slide rail of this device, can prevent the out of control or misoperation of motor and damage device self and probe.
The utilization of this device is advanced, the running fix of back Long-distance Control motor-driven probe, and can traveling probe 1mm, 3mm and three strokes of 4mm.These three one stroke gears can be changed through the button on the control panel.Display screen on the control panel can show the position at probe place real-time and easily.
Also comprise lasing light emitter, NI high-speed data acquistion system, computing machine and acquisition software and corresponding various fibre-optical splice in the measuring system, be used for optical fiber output real-time acquisition and light circuit and the complete of electric loop and be connected.
In service, optical fiber probe by location and driving mechanism accurately the location and radially the position move, amplitude that moves and point position are by probe location and the control of driving mechanisms control device.The enlargement ratio of the output voltage of probe when being in gas phase during with respect to liquid phase controlled by four-way photoelectric conversion device control panel.SF is by computing machine and data acquisition system (DAS) control.Signal with front-end probe when measuring void fraction and bubble frequency is as the criterion, and measurement axis need be used the signal of former and later two probes simultaneously when interfacial velocity and interfacial area concentration.Bubble size obtains through the characteristics of signals analysis of former and later two probes.
Earlier probe being positioned the channel center position before measuring, making the probe direction consistent with flow direction and be positioned on the passage axis through optical means, start probe then and locate and driving mechanism, is zero point with initial position setting in the controller.Start light source and four-way opto-electronic conversion and amplification system,, select suitable gas-liquid two-phase output voltage enlargement ratio through the enlargement ratio knob on its control panel.Start NI high-speed data acquistion system and computing machine and acquisition software at last, set suitable SF and sampling time, the voltage signal of record probe output is for data processing.The data acquisition of a certain radially measuring point probe signals finishes, and locate through probe the back and driving mechanisms control device traveling probe arrives new measuring point, and probe radially position coordinates can obtain through location and driving mechanisms control device display screen.Waiting to pop one's head in moves to behind the new measuring point through acquisition system acquisition probe signal, repeats the mobile probe radial position then.Only need carry out initial alignment in the whole measuring process, other experiment can realize Long-distance Control fully through probe location and driving mechanism.
Described measurement mechanism both can carry out the measurement of the local interface parameter of gas-liquid two-phase, and the accurate location that can realize different radial positions simultaneously again is with mobile.Local interface parameter comprises void fraction, bubble frequency, axial interface speed, interfacial area concentration and bubble equivalent diameter.In conjunction with the radial position coordinate of measuring point, local interface parameter is carried out suitable area weighted mean, can also obtain corresponding cross section mean value.Wherein different local interface parameters obtains through different probe signals is handled.
Signal with front-end probe when measuring void fraction is as the criterion.The probe end face is corresponding respectively output signal high voltage and low-voltage when being in gas phase and liquid phase, so through asking for the time average void fraction that share that front-end probe signal high voltage accounts for total acquisition time is the measuring point local location.Have signal delay owing to probe pricks a bubble during actual motion, so corresponding signal rises and decline all has a process, corresponding square wave deforms, and when definite gas phase and liquid phase separation, need rule of thumb choose certain threshold value.Present with good grounds other measurement means comparison and selection method of method of probe selection of threshold and attempt selecting two big types of threshold values according to probe self signal, two kinds of methods are all very common.The probe threshold value is by the decision of the intrinsic characteristic of probe, in case probe manufacturing is accomplished, its threshold value coefficient just confirms, so each probe only need carry out a subthreshold and selects to accomplish all experiments.
When measuring, bubble frequency also is as the criterion with the signal of front-end probe.Through the front-end probe end face, the number of times that noble potential appears in therefore direct statistical unit time Inner Front End probe output can obtain the bubble frequency of local measuring point to each noble potential corresponding to a corresponding bubble.
The axial interface velocity survey need be used the signal of former and later two probes simultaneously.The mistiming of front and back probe signal rising starting point is the time interval of liquid-gas interface through front and back probe end face, can try to achieve axial interface speed in conjunction with front and back probe axial spacing.Because number of bubbles is more in the passage, the axial interface speed that therefore obtains is a statistic, and usually said axial interface speed refers to its mean value.
Numerous scholars have proposed a large amount of methods according to axial interface speed and bubble frequency average interfacial area concentration computing time.Handle through the axial interface speed of gained being done statistical study, can revise, obtain more interfacial area concentration near actual conditions to interfacial concentration.
According to the void fraction that obtains, bubble frequency and interfacial area concentration adopted rule-of-thumb relation to calculate and obtain when the bubble equivalent diameter was handled.
The local interface parameter device of a kind of optical probe method Measurement of Two-phase mainly comprises lasing light emitter 1, four-way opto-electronic conversion and multiplying arrangement 2, optical probe 7, probe location and driving mechanism 8, probe location and driving mechanisms control device 5, photoelectric commutator 14, polystage amplifier 13, high-speed data acquistion system 4, computing machine and corresponding acquisition software 3 and experimental section 6.
Characteristics (600-1700nm) such as light source adopts ASE-Clight source lasing light emitter, has the high output energy of religion, and high stability and output spectrum are wide.The y-type optical fiber coupling mechanism can be realized the hyperchannel common light source with light signal many optical fiber of branch from a light, also can the probe reflected light be separated simultaneously.
As shown in Figure 2, optical fiber probe adopts the single-mode fiber of 9 microns of core diameters, and covering is 125 microns; Fiber connector adopts circular angle APC joint.Optical fiber is with four layers of stainless-steel tube outward; Make probe increase (respectively being 0.5mm stainless steel capillary 7-4,1.5mm stainless-steel tube 7-3,2.5mm stainless-steel tube 7-2 and 4.45mm stainless-steel tube 7-1) step by step along main flow direction; Both can reduce the interference of stream field, the vibrations that can make probe have enough intensity opposing bubbles to cause again.The outermost layer stainless-steel tube supports as probe body, perpendicular to flow direction; Crooked 90 ° of ecto-entad second layer stainless-steel tube is so that inner layer stainless steel tube and probe fibre core are parallel to flow direction.Probe end face horizontal spacing and streamwise fore-and-aft clearance adopt reading microscope to record, and are respectively 0.5mm and 1.1mm.The sealing of waterproof strong glue is adopted in the stainless-steel tube junction, to prevent that fluid working substance is revealed along probe in the experimental section.
As shown in Figure 3; Four-way opto-electronic conversion and multiplying arrangement are the instruments of an autonomous Design and manufacturing; By y-type optical fiber coupling mechanism 9～12, photoelectric commutator 14, (light path is shown in dotted line among the figure, and circuit is shown in fine line among the figure) formed in polystage amplifier 13 and associated button and light, electric loop.The y-type optical fiber coupling mechanism can be divided into two groups with incident light, after the secondary beam split light source incident light is divided into four groups, respectively as the incident light source of four road optical fiber.Coupling mechanism can be isolated reflected light from optical fiber simultaneously, and reflected light is delivered to photoelectric commutator 14; Photoelectric commutator is a light activated element, and the electrical signal intensity and the light intensity of its output are directly proportional; Polystage amplifier can amplify electric signal step by step, thereby realizes the controllability of enlargement ratio.When output voltage is approximately liquid phase when probe is in gas phase 3～8 times can be selected different enlargement ratios as required.Electronic component response frequency minimum is 15kHz in this device, satisfies common two-phase flow local parameter response frequency demand.
As shown in Figure 4, probe location and driving mechanism be mainly by controller, scrambler 5; Servo-driver; Servomotor and linear module five parts are formed, its middle controller, scrambler 5, servo-driver; Servomotor has constituted a closed-loop system jointly, realizes that probe is in the ducted accurately mobile and location of diphasic flow.Use the mega128 single-chip microcomputer in the controller, through its programming is realized probe advances and the motion of retreating in the diphasic flow pipeline.This device has utilized the principle of light current control forceful electric power, uses servo-driver to drive servomotor.Servo-driver 8-3 in the device adopts the PID regulative mode, and velocity of rotation and acceleration through output PWM ripple control motor 8-1 have the effect of overcurrent protection simultaneously to motor.Linear module 8-6 is by motor-driven motion platform, and servomotor joins with direct coupled mode in inside and screw mandrel 8-2 through shaft coupling, and converts rotatablely moving of motor output into rectilinear motion through ball-screw and slide rail 8-4.Intermediate plate 8-5 is housed on slide rail, is used for fixing probe 7, and the drive probe is done rectilinear motion.The total shift motion of module reaches 100mm, and setting accuracy is 0.02mm repeatedly.Servomotor is mainly located by pulse, in the rear end of motor, photoelectric encoder 5 is housed; Its revolution calibration 500 lines, to angle of the every rotation of motor, coding all can send a pulse; And the concord that fed back to pulse shaping that servo-driver and servomotor accept, like this; System can control the rotation of motor very accurately according to the pulse of sending and receiving.Two lead limit switches (front travel switch 8-11 with back travel switch 8-10) also are housed on the slide rail of this device, can prevent the out of control or misoperation of motor and damage device self and probe.Probe location and driving mechanism integral body are linked to each other with experimental section by stationary installation 8-8.
The utilization of this device is advanced, back Long-distance Control probe moves and locate each trigger button mobile probe 1mm, 3mm and three kinds of strokes of 4mm.These three one stroke gears can be changed through the button on the control panel.On control panel, also have a display screen, can read the position at probe place at any time.
Claims (10)
1. the local interface parameter device of optical probe method Measurement of Two-phase; It is characterized in that: comprise lasing light emitter, opto-electronic conversion and multiplying arrangement, optical probe, probe location and driving mechanism; Lasing light emitter, probe location and driving mechanism are arranged in the both sides of opto-electronic conversion and multiplying arrangement; Optical probe is installed on probe location and the driving mechanism, and lasing light emitter, opto-electronic conversion and multiplying arrangement, optical probe, probe location and driving mechanism are formed light path, and optical probe places in the detected fluid.
2. the local interface parameter device of optical probe method Measurement of Two-phase according to claim 1; It is characterized in that: described opto-electronic conversion and multiplying arrangement comprise y-type optical fiber coupling mechanism, photovoltaic converter, amplifier; Described y-type optical fiber coupling mechanism comprises first-Di, four y-type optical fiber coupling mechanisms; Each y-type optical fiber coupling mechanism is two output terminals of an input end; Before the output terminal of the first y-type optical fiber coupling mechanism places second, third y-type optical fiber coupling mechanism input end; The 4th y-type optical fiber coupling mechanism first output end face is to the first output terminal setting of second fiber coupler, and the 4th y-type optical fiber coupling mechanism second output end face is arranged to photovoltaic converter, the arrangement of mechanism that the 4th y-type optical fiber coupling mechanism input end face is formed to optical probe, probe location and driving mechanism; Photovoltaic converter connects amplifier, and amplifier connects the data acquisition system (DAS) that is used for acquired signal.
3. the local interface parameter device of optical probe method Measurement of Two-phase according to claim 2; It is characterized in that: also comprise the 5th y-type optical fiber coupling mechanism; Described optical probe and probe location and driving mechanism have two groups; The 4th y-type optical fiber coupling mechanism is located with first group of optical probe and probe and driving mechanism cooperates formation first mechanism; The 5th y-type optical fiber coupling mechanism is located with second group of optical probe and probe and driving mechanism cooperates formation second mechanism, and first output end face of the 5th y-type optical fiber coupling mechanism is to the second output terminal setting of second fiber coupler, and second output end face of the 5th y-type optical fiber coupling mechanism is arranged to photovoltaic converter.
4. the local interface parameter device of optical probe method Measurement of Two-phase according to claim 2 is characterized in that: also comprise the 5th, the 6th y-type optical fiber coupling mechanism, described optical probe and probe location and driving mechanism have three groups; The 4th y-type optical fiber coupling mechanism is located with first group of optical probe and probe and driving mechanism cooperates formation first mechanism; The 5th y-type optical fiber coupling mechanism is located with second group of optical probe and probe and driving mechanism cooperates formation second mechanism, and the 6th y-type optical fiber coupling mechanism is located with the 3rd group of optical probe and probe and driving mechanism cooperates formation the 3rd mechanism; First output end face of the 5th y-type optical fiber coupling mechanism is to the second output terminal setting of second fiber coupler, and second output end face of the 5th y-type optical fiber coupling mechanism is arranged to photovoltaic converter; First output end face of the 6th y-type optical fiber coupling mechanism is to the first output terminal setting of the 3rd fiber coupler, and second output end face of the 6th y-type optical fiber coupling mechanism is arranged to photovoltaic converter.
5. the local interface parameter device of optical probe method Measurement of Two-phase according to claim 2 is characterized in that: also comprise the 5th-Di seven y-type optical fiber coupling mechanisms, described optical probe and probe location and driving mechanism have four groups; The 4th y-type optical fiber coupling mechanism is located with first group of optical probe and probe and driving mechanism cooperates formation first mechanism; The 5th y-type optical fiber coupling mechanism is located with second group of optical probe and probe and driving mechanism cooperates formation second mechanism; The 6th y-type optical fiber coupling mechanism is located with the 3rd group of optical probe and probe and driving mechanism cooperates formation the 3rd mechanism, and the 7th y-type optical fiber coupling mechanism is located with the 4th group of optical probe and probe and driving mechanism cooperates formation the 4th mechanism; First output end face of the 5th y-type optical fiber coupling mechanism is to the second output terminal setting of second fiber coupler, and second output end face of the 5th y-type optical fiber coupling mechanism is arranged to photovoltaic converter; First output end face of the 6th y-type optical fiber coupling mechanism is to the first output terminal setting of the 3rd fiber coupler; Second output end face of the 6th y-type optical fiber coupling mechanism is arranged to photovoltaic converter; First output end face of the 7th y-type optical fiber coupling mechanism is to the second output terminal setting of the 3rd fiber coupler, and second output end face of the 7th y-type optical fiber coupling mechanism is arranged to photovoltaic converter.
6. according to the local interface parameter device of the arbitrary described optical probe method Measurement of Two-phase of claim 1-5; It is characterized in that: described optical probe has four layers of stainless-steel tube and increases step by step along the main flow direction diameter; The outermost layer stainless-steel tube supports perpendicular to fluid flow direction as probe body, ecto-entad second layer stainless-steel tube crooked 90 ° so that the probe fibre core of inner layer stainless steel tube and optical probe is parallel to fluid flow direction.
7. according to the local interface parameter device of the arbitrary described optical probe method Measurement of Two-phase of claim 1-5; It is characterized in that: described probe location and driving mechanism comprise control motor, screw mandrel, slide rail, linear module, stationary installation, front travel switch, back travel switch; The control motor connects slide rail through screw mandrel; Linear module is installed in slide rail upper edge slide rail and moves; Stationary installation is fixed on slide rail one end the container of slide rail and splendid attire detected fluid is fixed together, and optical probe is installed on the linear module, and the extreme position of linear module is controlled at the two ends that front travel switch, back travel switch are installed in slide rail respectively.
8. the local interface parameter device of optical probe method Measurement of Two-phase according to claim 6; It is characterized in that: described probe location and driving mechanism comprise control motor, screw mandrel, slide rail, linear module, stationary installation, front travel switch, back travel switch; The control motor connects slide rail through screw mandrel; Linear module is installed in slide rail upper edge slide rail and moves; Stationary installation is fixed on slide rail one end the container of slide rail and splendid attire detected fluid is fixed together, and optical probe is installed on the linear module, and the extreme position of linear module is controlled at the two ends that front travel switch, back travel switch are installed in slide rail respectively.
9. the local interface parameter device of optical probe method Measurement of Two-phase according to claim 7; It is characterized in that: also comprise servo-driver, probe location and driving mechanisms control device; Described probe location and driving mechanisms control device are scrambler, and servo-driver is installed in and connects control motor and probe location and driving mechanisms control device on the slide rail.
10. the local interface parameter device of optical probe method Measurement of Two-phase according to claim 8; It is characterized in that: also comprise servo-driver, probe location and driving mechanisms control device; Described probe location and driving mechanisms control device are scrambler, and servo-driver is installed in and connects control motor and probe location and driving mechanisms control device on the slide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220171388 CN202614499U (en) | 2012-04-20 | 2012-04-20 | Device for measuring local interface parameter of two-phase flow through optical probe method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220171388 CN202614499U (en) | 2012-04-20 | 2012-04-20 | Device for measuring local interface parameter of two-phase flow through optical probe method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202614499U true CN202614499U (en) | 2012-12-19 |
Family
ID=47348188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220171388 Expired - Fee Related CN202614499U (en) | 2012-04-20 | 2012-04-20 | Device for measuring local interface parameter of two-phase flow through optical probe method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202614499U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102628734A (en) * | 2012-04-20 | 2012-08-08 | 哈尔滨工程大学 | Device for measuring two-phase flow local interface parameter through optical probe method |
| CN104062447A (en) * | 2014-06-23 | 2014-09-24 | 中国核动力研究设计院 | Automatic device for probe stepping and precision positioning |
-
2012
- 2012-04-20 CN CN 201220171388 patent/CN202614499U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102628734A (en) * | 2012-04-20 | 2012-08-08 | 哈尔滨工程大学 | Device for measuring two-phase flow local interface parameter through optical probe method |
| CN104062447A (en) * | 2014-06-23 | 2014-09-24 | 中国核动力研究设计院 | Automatic device for probe stepping and precision positioning |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102628734A (en) | Device for measuring two-phase flow local interface parameter through optical probe method | |
| CN102035435B (en) | Photovoltaic power generation device with two-dimensional photovoltaic sun-positioning mechanism | |
| CN104595096A (en) | Wave energy, wind energy and tidal current energy combined power generating device | |
| CN102591359B (en) | Solar tracking controller | |
| CN202614499U (en) | Device for measuring local interface parameter of two-phase flow through optical probe method | |
| CN103207211A (en) | Device and method for measuring liquid metal two-phase flow void fraction | |
| CN201945571U (en) | Multi-point measurement and control system for air quality in large space | |
| CN103165699A (en) | Tower-type solar energy heliostat bevel gear passive automatic sun-chasing support | |
| CN201581065U (en) | Complete apparatus for fast producing bio-diesel | |
| CN102539626A (en) | Multi-point air quality measuring and controlling system for large space | |
| CN103684252B (en) | A kind of condensation photovoltaic outdoor performance test system | |
| CN103482727A (en) | Air plasma jet water treatment experiment research device | |
| CN203085574U (en) | Automatic light-tracking solar panel | |
| CN203085586U (en) | Tower solar heliostat bevel gear driven automatic sun-tracking bracket | |
| CN201672929U (en) | Gear transmission mechanism of photomagnetic mixed multiturn rotary encoder | |
| CN203595495U (en) | Tracking precision detecting device for solar tracking mechanism | |
| CN204119128U (en) | A kind of solar panel automatic spot-following device | |
| CN202748131U (en) | Automatic adjusting mechanism for spectrometer refractor | |
| CN110071685A (en) | A kind of photovoltaic water tower | |
| CN201399655Y (en) | LED sapphire substrate scribing apparatus | |
| CN202522929U (en) | Research instrument for omni-directional solar tracking power generation | |
| CN204964736U (en) | Based on labview control magnetic sensor calibration system | |
| CN202600426U (en) | Hard drive type macro and micro automatic positioning control device | |
| CN104990898A (en) | Optical fiber tapering characteristic based system for detecting liquid refractive index in real time | |
| CN202257027U (en) | Bearing system of photoresist coating machine and photoresist coating machine provided with bearing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20150420 |
|
| EXPY | Termination of patent right or utility model |