CN106198607B - A kind of research device of vaporization bubble fuel factor - Google Patents
A kind of research device of vaporization bubble fuel factor Download PDFInfo
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- CN106198607B CN106198607B CN201610495983.XA CN201610495983A CN106198607B CN 106198607 B CN106198607 B CN 106198607B CN 201610495983 A CN201610495983 A CN 201610495983A CN 106198607 B CN106198607 B CN 106198607B
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/02—Investigating or analyzing materials by the use of thermal means by investigating changes of state or changes of phase; by investigating sintering
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The present invention relates to liquid vaporescence research device more particularly to a kind of research devices of vaporization bubble fuel factor.Belong to hydrodynamics and thermal conduction study scope, experimental fluid mechanics technical field.Two electrodes are suspended vacantly in the top of water tank by electrode support and are inserted into water tank; the bottom end of two electrodes respectively connects a copper wire; temperature sensor is fixed on the top of two copper wires by support; infrared biography light beam is equipped with object lens and one end of protective glass is inserted into from the through-hole of water tank side wall in water tank, then probe protective cover is installed on infrared biography light beam；The camera lens bayonet of infrared biography light beam and the camera lens of high speed thermal imaging camera are connected；High speed camera opens up the opposite side of through-hole wall surface mounted on water tank, and is generally aligned in the same plane with the hole heart of through-hole.The configuration of the present invention is simple, it is easy to use, different research liquid can be changed quickly, the temperature of Regulating study liquid adjusts the scale for generating vaporization bubble, realizes the synchronous acquisition of the form and temperature field of vaporization bubble evolution process.
Description
Technical field
The present invention relates to liquid vaporescence research device more particularly to a kind of research devices of vaporization bubble fuel factor.Belong to
In hydrodynamics and thermal conduction study scope, experimental fluid mechanics technical field.
Background technology
When the liquid internal local pressure of certain temperature is reduced to hold-up vapour pressure, or when the liquid of certain pressure
When internal portion local temperature is increased to the boiling point of liquid, vaporization phenomenon is just will produce, while being dissolved in the gas in liquid and also can
It is precipitated, is formed together steam bubble, the pressure rise or temperature around steam bubble reduce, and the steam regelation in bubble, steam bubble is burst
It goes out.The Emergence and Development of this liquid internal steam bubble is crumbled and fall, and a series of physical and chemical change process that thus cause are i.e.
For the evolution process of vaporization bubble.
Vaporization bubble is widely present in the engineering fields such as fluid machinery, heat and mass, the energy and aerospace.For example, in water
In the circuit of power machinery, the fuel system and firepower of liquid-propellant rocket engine and dynamic power machine and nuclear power, cavitation is one
The very common phenomenon of kind, cavitation frequently can lead to machine efficiency and decline and cause vibration, noise and material surface broken
Bad the problems such as, can make machine cisco unity malfunction when serious；In burner and electronic device, strengthen heat dissipation by boiling
Effect；Also have researcher using cavitation and this vaporescence of boiling come realize sterilizing, prepare micromolecular water, sewage disposal with
And material surface modifying etc..The differentiation of vaporization bubble contains abundant physical chemistry information, receives researcher's all the time
Concern.
The vaporescence of liquid is an endothermic process, and condensation process can then release heat, this allows for drilling for vaporization bubble
Change process is along with the transmission of heat and the change of local temperature, and this process is in liquid mediums and different vaporization items
Severe degree under part is also different.With the enhancing of vaporescence fuel factor, local temperature changes to vaporescence
It influences and thermal boundary layer is also more and more significant on hydrokinetic influence.Measurement of the researcher to vaporization bubble temperature at present
It is to be obtained by single point temperature sensor, even if arranging that multiple temperature sensors also are difficult to reflect complete temperature field information,
The variation less than thermal boundary layer is also captured in turn, and it is even more impossible to thermal boundary layer and visualization are vaporized bubble form to compare and analyze.
Carry out collecting temperature field information according to infrared thermal imaging technique, the characteristics of due to infrared thermal imaging, then can only collect container table
Face or the temperature field of liquid surface and can not obtain liquid internal vaporization bubble temperature field.
Invention content
The purpose of the invention is to be vaporized bubble generation and the research for the process fuel factor that crumbles and fall in scientific research, one is provided
The research device of kind vaporization bubble fuel factor.The research device can realize visual image and the synchronous acquisition in temperature field, acquired
Test data have an important value to the research of vaporization bubble fuel factor, while can also easily the replacement of realization medium and
The adjusting of medium temperature.
The present invention is achieved through the following technical solutions.
A kind of research device of vaporization bubble fuel factor, including vaporization bubble generating means, temperature control system, data acquisition system
System.
Vaporization bubble generating means are for generating vaporization bubble, and the movement for vaporization bubble provides space；Including water tank, copper wire,
Electrode, electrode support, electric spark control, connection relation：Water tank is the cubic water tank of top opening；One face side wall of water tank is opened
Equipped with through-hole, through-hole can be sealed by gasket seal and sealing ring；Electrode support is positioned over the top of water tank；Two electricity
Pole is suspended vacantly in the top of water tank by electrode support and is inserted into water tank；The top of two electrodes respectively by electric wire with
Electric spark control connects, and electrode bottom end respectively connects a copper wire, need to ensure that the front of motor of two copper wires does not contact, and be located at
On same plane, the spacing distance of the bottom end of two copper wires is less than the striking distance of electric spark.
Temperature control system is used for the temperature of Regulating study liquid, measures the temperature of liquid or vaporization bubble；Add including electricity
Heat pipe, electric heating tube switch, temperature sensor, temperature sampler, connection relation：Electric heating tube, which suspends, is positioned over the liquid of water tank
In；Electric heating tube is connected by electric wire and electric heating tube switch；Temperature sensor suspension is positioned in the liquid of water tank, for surveying
The temperature of the boundary of the generated bubble of amount, temperature sensor are connect by lead with temperature sampler.
Data collecting system is used to acquire and store the image and temperature field data of the generation of vaporization bubble and the process that crumbles and fall；Including
Infrared biography light beam, high speed thermal imaging camera, high speed camera, computer, connection relation：Infrared biography light beam passes through the logical of water tank side wall
Hole one end is put into water tank, and the other end is connect with high speed thermal imaging camera；Bottom end line of the infrared biography light beam to two copper wires
Radius of the distance of central point not less than the maximum vaporization bubble that electric spark can generate；High speed thermal imaging camera is vaporized for acquiring
Temperature field around steeping, high speed thermal imaging camera are connect by data line with computer；High speed camera is vaporized for shooting
The form of bubble；High speed camera is connect by data line with computer；Computer can be to high speed thermal imaging camera and high speed phase
Machine is controlled.
Infrared biography light beam is by protective glass, object lens, infrared optical fiber beam, eyepiece, camera lens bayonet, outer tube, inner sleeve, probe
Protective cover assembles；Infrared optical fiber beam is made of a plurality of infrared optical fiber, and infrared optical fiber Shu Qianduan is followed successively by object lens and protection glass
Glass, there are the adjusting spaces of object lens between infrared optical fiber beam and protective glass；Infrared optical fiber Shu Houduan is eyepiece and there are tune
Save space；Infrared optical fiber beam, object lens, protective glass, eyepiece are wrapped up by inner sleeve, and infrared optical fiber beam fills inner sleeve completely,
Object lens, protective glass, the outer diameter of eyepiece are identical as the internal diameter of inner sleeve, and object lens and eyepiece are connected with inner sleeve, protect glass
Glass is fixedly connected with inner sleeve；The outside that inner sleeve is equipped with one end of object lens and protective glass is wrapped up by probe protective cover,
Remaining part point is wrapped up by outer tube；Inner sleeve is equipped with one end of eyepiece and camera lens bayonet is connected；Camera lens bayonet and high speed heat
The camera lens of image camera is connected；
The water tank uses transparent acrylic material；
The distance of the probe of the temperature sensor to the central point of the bottom end line to two copper wires is not less than electric spark
The radius for the maximum vaporization bubble that can be generated；
The infrared optical fiber Shu Caiyong infrared optical fibers material and structure；
The object lens, protective glass and eyepiece are all made of sapphire glass material；
The inner sleeve uses flexible plastic material；
The outer tube uses rubber material.
Installation process：Two electrodes are suspended vacantly in the top of water tank by electrode support and are inserted into water tank, two
The bottom end of electrode respectively connects a copper wire, the Kong Xinwei for the through-hole that the front of motor of two copper wires is not contacted, and is equipped with water tank
In on same plane, the spacing distance of the bottom end of two copper wires is less than the striking distance of electric spark；Temperature sensor passes through support
It is fixed on the top of two copper wires, the distance of the central point of the bottom end line of the probe of temperature sensor to two copper wires is not less than
The radius for the maximum vaporization bubble that electric spark can generate；The probe protective cover of infrared biography light beam is removed, infrared biography light beam installation
There is one end of object lens and protective glass to be inserted into water tank from the through-hole of water tank side wall, then probe protective cover is installed to infrared biography light
Shu Shang, the distance of protective glass to the central point of the bottom end line of two copper wires is not less than the maximum vaporization that electric spark can generate
The radius of bubble；The outer tube of infrared biography light beam is contacted with the cooperation of the through-hole of water tank, and by gasket seal and sealing ring to through-hole
It is sealed；The camera lens bayonet of infrared biography light beam and the camera lens of high speed thermal imaging camera are connected；High speed camera is mounted on water
Case opens up the opposite side of through-hole wall surface, and is generally aligned in the same plane with the hole heart of through-hole.
Specific work process：
After installing research device according to the installation process, liquid to be studied is poured into water tank, liquid is complete
Copper wire is flooded, the specific height of liquid can need to be adjusted according to experiment；Electric heating tube switch is opened, electric heating tube is to research
Liquid is heated, and the temperature of research liquid in temperature sampler real-time display water tank, research liquid is heated to assigned temperature
Electric heating tube switch is closed afterwards；Electric spark control is adjusted and triggered, makes to generate electric spark between two copper wires, around electric spark
Research liquid be rapidly heated and vaporize, the energy generated due to electric spark is high and position is concentrated, because being generated
Vaporization bubble is in substantially spherical；In the moment of electric spark triggering, high speed thermal imaging camera, high speed camera and temperature are controlled by computer
It spends collector to work according to the Frequency Synchronization of setting, acquisition vaporization steeps corresponding data in evolution process and is stored in computer
In；The single point temperature for the vaporization bubble boundary that temperature sensor collects can be used in calibration high speed thermal imaging camera and acquire
The temperature field arrived；The temperature field and high speed camera collected to high speed thermal imaging camera collect vaporization bubble form into
Row comparative analysis, it will be able to which the fuel factor of vaporization bubble evolution process is furtherd investigate.
According to experiment demand, different research liquid can be changed quickly, liquid level is adjustable, and fluid temperature is adjustable,
The vaporization bubble scale generated can be adjusted by electric spark control；Since the inner sleeve and outer tube of infrared biography light beam are all made of
The probe of yielding material, infrared biography light beam is suitably adjusted, and can acquire the temperature field data of vaporization bubble from different perspectives.
Advantageous effect
1, the research device of a kind of vaporization of the invention bubble fuel factor can realize the steam bubble form of vaporization bubble evolution process
With the synchronous acquisition in temperature field.
2, the research device of a kind of vaporization of the invention bubble fuel factor, it is simple in structure, it is easy to use, it securely and reliably, can
The different research liquid of quick-replaceable, the temperature of Regulating study liquid adjust the scale for generating vaporization bubble.
Description of the drawings
Fig. 1 is a kind of research device schematic diagram of vaporization bubble fuel factor of the present invention；
Fig. 2 is infrared biography light beam schematic internal view；
Fig. 3 is infrared biography light beam A-A sectional views.
Wherein, 1-water tank, 2-infrared biography light beams, 3-high speed thermal imaging cameras, 4-gasket seals, 5-sealing rings,
6-copper wires, 7-electrodes, 8-temperature sensors, 9-electric heating tubes, 10-temperature samplers, 11-electrode supports, 12-meters
Calculation machine, 13-electric spark controls, 14- electric heating tubes switch, 15- high speed cameras, 201- protective glass, 202- object lens, 203-
Infrared optical fiber beam, 204- eyepieces, 205- camera lenses bayonet, 206- outer tubes, 207-inner sleeves, 208-probe protective covers.
Specific implementation mode
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
Embodiment 1
A kind of research device of vaporization bubble fuel factor, including vaporization bubble generating means, temperature control system, data acquisition system
System.
As shown in Figure 1, vaporization bubble generating means vaporize bubble for generating, and the movement for vaporization bubble provides space；Including
Water tank 1, gasket seal 4, sealing ring 5, copper wire 6, electrode 7, electrode support 11, electric spark control 13, connection relation：Water tank 1
A face side wall for the cubic water tank of top opening, water tank 1 offers through-hole；Electrode support 11 is positioned over the top of water tank 1；Two
Root electrode 7 is suspended vacantly in the top of water tank 1 by electrode support 11 and is inserted into water tank 1；The top difference of two electrodes 7
It is connect with electric spark control 13 by electric wire, bottom end is separately connected two copper wires 6.
The water tank 1 uses transparent acrylic material.
As shown in Figure 1, temperature control system is used for the temperature of Regulating study liquid, the temperature of liquid or vaporization bubble is measured
Degree；Including electric heating tube 9, electric heating tube switch 14, temperature sensor 8, temperature sampler 10, connection relation：Electric heating tube 9 is logical
It crosses and the bottom for being fixed on water tank 1 is supported not to be in direct contact with water tank 1, electric heating tube 9 passes through electric wire and electric heating tube switch 14
Connection；Temperature sensor 8 is fixed on by support among water tank 1, and temperature sensor 8 is connected by lead and temperature sampler 10
It connects.
As shown in Figure 1, data collecting system is used to acquire and store the image and temperature of the generation of vaporization bubble and the process that crumbles and fall
Field data；Including infrared biography light beam 2, high speed thermal imaging camera 3, high speed camera 15, computer 12, connection relation：Such as Fig. 2 institutes
Show, infrared biography light beam 2 is by protective glass 201, object lens 202, infrared optical fiber beam 203, eyepiece 204, camera lens bayonet 205, outer tube
206, inner sleeve 207, probe protective cover 208 assemble；Infrared optical fiber beam 203 is made of a plurality of infrared optical fiber (such as Fig. 3 institutes
Show), 203 front end of infrared optical fiber beam is followed successively by object lens 202 and protective glass 201, in infrared optical fiber beam 203 and protective glass 201
Between there are the adjusting spaces of object lens 202；Infrared optical fiber beam 203, object lens 202, protective glass 201, eyepiece 204 are by inner sleeve
207 packages, infrared optical fiber beam 203 inner sleeve 207 is filled it is full, object lens 202, protective glass 201, eyepiece 204 outer diameter with it is interior
The internal diameter of casing 207 is identical, and object lens 202 and eyepiece 204 are connected with inner sleeve 207, protective glass 201 and inner sleeve 207
It is fixedly connected；The outside that inner sleeve 207 is equipped with one end of object lens 202 and protective glass 201 is wrapped up by probe protective cover 208,
207 rest part of inner sleeve is wrapped up by outer tube 206, and inner sleeve 207 is equipped with one end of eyepiece 204 and camera lens bayonet 205 is matched
Close connection；Camera lens bayonet 205 and the camera lens of high speed thermal imaging camera 3 are connected, and high speed thermal imaging camera 3 passes through data transmission
Line is connect with computer 12；High speed camera 15 is connect by data line with computer 12；Computer 12 can to high speed heat at
As camera 3 and high speed camera 15 are controlled.
The infrared optical fiber beam 203 uses infrared optical fiber material and structure；
The object lens 202, protective glass 201 and eyepiece 204 are all made of sapphire glass material；
The inner sleeve 207 uses flexible plastic material；
The outer tube 206 uses rubber material.
Installation process：Two electrodes 7 are suspended vacantly in the top of water tank 1 by electrode support 11 and are inserted into water tank 1,
The bottom end of two electrodes 7 respectively connects a copper wire 6, the through-hole that the front of motor of two copper wires 6 is not contacted, and is equipped with water tank 1
The hole heart it is in the same plane, the spacing distance of the bottom end of two copper wires 6 is less than the striking distance of electric spark；According to preliminary examination
The maximum radius for testing the vaporization bubble that result can generate is about 50mm；Temperature sensor 8 is fixed on two copper wires 6 by support
The distance of top, the central point of the bottom end line of the probe of temperature sensor 8 to two copper wires 6 is 52mm；By infrared biography light beam 2
Probe protective cover 208 remove, infrared biography light beam 2 is equipped with one end of object lens 202 and protective glass 201 from 1 side wall of water tank
Through-hole is inserted into water tank 1, then probe protective cover 208 is installed on infrared biography light beam 2,201 to two copper wires of protective glass 6
The distance of the central point of bottom end line is 60mm；The outer tube 206 of infrared biography light beam 2 is contacted with the cooperation of the through-hole of water tank 1, and is led to
It crosses gasket seal 4 and sealing ring 5 is sealed through-hole；The camera lens bayonet 205 of infrared biography light beam 2 and high speed thermal imaging camera 3
Camera lens be connected；High speed camera 15 opens up the opposite side of through-hole wall surface mounted on water tank 1, and is located at the hole heart of through-hole
Same plane.
Specific work process：
Experiment needs the fuel factor of the vaporization bubble evolution process to 50 DEG C of water bodys to study.
After installing research device according to above-mentioned installation process, room temperature water body is poured into water tank 1, water body floods completely
Do not have the probe of copper wire 6 and temperature sensor 8, the specific height of the water surface to need to be adjusted according to experiment；Electric heating tube is opened to open
14 are closed, electric heating tube 9 heats water body, and the temperature of water body, water body are heated in 10 real-time display water tank 1 of temperature sampler
Electric heating tube switch 14 is closed after to 50 DEG C；At this point, electric spark control 13 is triggered at once, between the endpoint for making two copper wires 6
Electric spark is generated, the water body around electric spark is rapidly heated and vaporizes, the energy height generated due to electric spark and position
It concentrates, because the steam bubble generated is in substantially spherical；Electric spark triggering moment, by computer 12 control high speed heat at
As camera 3, high speed camera 15 and temperature sampler 10 start to acquire according to the Frequency Synchronization of 2000Hz, acquisition steam bubble developed
It corresponding data and is stored in computer 12 in journey；The single point temperature for the steam bubble boundary that temperature sensor 8 collects
It can be used in calibrating the temperature field that high speed thermal imaging camera 3 collects；The temperature field that high speed thermal imaging camera 3 is collected
The form of the steam bubble collected with high speed camera 15 compares and analyzes, it will be able to be developed to the vaporization bubble of 50 DEG C of water bodys
The fuel factor of journey is furtherd investigate.
After the completion of battery of tests operating mode, according to experiment demand, the water body in water tank 1 can directly be poured out, quick-replaceable its
His research liquid, liquid level and fluid temperature can be adjusted according to experiment demand, and the vaporization bubble scale generated can pass through
Electric spark control 13 is adjusted；It is infrared since the inner sleeve 207 and outer tube 206 of infrared biography light beam 2 are all made of yielding material
The probe for passing light beam 2 is suitably adjusted, and can acquire the temperature field data of vaporization bubble from different perspectives.
Claims (8)
1. a kind of research device of vaporization bubble fuel factor, it is characterised in that：Including vaporization bubble generating means, temperature control system,
Data collecting system；
Vaporization bubble generating means are for generating vaporization bubble, and the movement for vaporization bubble provides space；Including water tank (1), copper wire
(6), electrode (7), electrode support (11), electric spark control (13), connection relation：Water tank (1) is the square water of top opening
Case；One face side wall of water tank (1) offers through-hole；Electrode support (11) is positioned over the top of water tank (1)；Two electrodes (7) are logical
Electrode support (11) is crossed to be suspended vacantly in the top of water tank (1) and be inserted into water tank (1)；The top difference of two electrodes (7)
It is connect with electric spark control (13) by electric wire, electrode (7) bottom end respectively connects a copper wire (6), need to ensure two copper wires
Front of motor does not contact, and in the same plane, the spacing distance of the bottom end of two copper wires (6) be less than the breakdown of electric spark away from
From；
Temperature control system is used for the temperature of Regulating study liquid, measures the temperature of liquid or vaporization bubble；Including electric heating tube
(9), electric heating tube switch (14), temperature sensor (8), temperature sampler (10), connection relation：Electric heating tube (9) suspension is put
It is placed in the liquid of water tank (1)；Electric heating tube (9) is connect by electric wire with electric heating tube switch (14)；Temperature sensor (8) is outstanding
Floating to be positioned in the liquid of water tank (1), the temperature of the boundary for measuring generated bubble, temperature sensor (8) is by drawing
Line is connect with temperature sampler (10)；
Data collecting system is used to acquire and store the image and temperature field data of the generation of vaporization bubble and the process that crumbles and fall；Including infrared
Pass light beam (2), high speed thermal imaging camera (3), high speed camera (15), computer (12), connection relation：Infrared biography light beam (2) is logical
The through-hole one end for crossing water tank (1) side wall is put into water tank (1), and the other end is connect with high speed thermal imaging camera (3)；Infrared biography light beam
(2) to the distance of the central point of the bottom end line of two copper wires (6) not less than the half of the maximum vaporization bubble that electric spark can generate
Diameter；High speed thermal imaging camera (3) is used to acquire the temperature field around vaporization bubble, and high speed thermal imaging camera (3) passes through data transmission
Line is connect with computer (12)；High speed camera (15) is used to shoot the form of vaporization bubble；High speed camera (15) passes through data transmission
Line is connect with computer (12)；Computer (12) can control high speed thermal imaging camera (3) and high speed camera (15).
2. a kind of research device of vaporization bubble fuel factor as described in claim 1, it is characterised in that：The infrared biography light beam
(2) by protective glass (201), object lens (202), infrared optical fiber beam (203), eyepiece (204), camera lens bayonet (205), outer tube
(206), inner sleeve (207), probe protective cover (208) assemble；Infrared optical fiber beam (203) is made of a plurality of infrared optical fiber,
Infrared optical fiber beam (203) front end is followed successively by object lens (202) and protective glass (201), in infrared optical fiber beam (203) and protective glass
(201) there are the adjusting spaces of object lens (202) between；Infrared optical fiber beam (203) rear end is eyepiece (204) and there are adjust sky
Between；Infrared optical fiber beam (203), object lens (202), protective glass (201), eyepiece (204) are wrapped up by inner sleeve (207), infrared
Fiber optic bundle (203) inner sleeve (207) is filled it is full, object lens (202), protective glass (201), eyepiece (204) outer diameter and inner sleeve
The internal diameter for managing (207) is identical, object lens (202) and eyepiece (204) and inner sleeve (207) mating connection, protective glass (201) with it is interior
Casing (207) is fixedly connected；It is popped one's head in the outside that inner sleeve (207) is equipped with one end of object lens (202) and protective glass (201)
Protective cover (208) wraps up, and rest part is wrapped up by outer tube (206)；Inner sleeve (207) be equipped with one end of eyepiece (204) with
Camera lens bayonet (205) is connected；Camera lens bayonet (205) and the camera lens of high speed thermal imaging camera (3) are connected.
3. a kind of research device of vaporization bubble fuel factor as described in claim 1, it is characterised in that：The temperature sensor
(8) distance of probe to the central point of the bottom end line to two copper wires (6) is not less than the maximum vapour that electric spark can generate
The radius of bubble.
4. a kind of research device of vaporization bubble fuel factor as described in claim 1, it is characterised in that：The one of the water tank (1)
Surface side wall offers through-hole, and is sealed to through-hole by gasket seal (4) and sealing ring (5).
5. a kind of research device of vaporization bubble fuel factor as described in claim 1, it is characterised in that：The water tank (1) uses
Transparent acrylic material.
6. a kind of research device of vaporization bubble fuel factor as claimed in claim 2, it is characterised in that：The infrared optical fiber beam
(203) infrared optical fiber material and structure are used；The object lens (202), protective glass (201) and eyepiece (204) are all made of blue treasured
Stone glass material；The inner sleeve (207) uses flexible plastic material；The outer tube (206) uses rubber material.
7. a kind of research device of vaporization bubble fuel factor as described in claim 1 to 6 any one, it is characterised in that：It is described
The installation process of device：Two electrodes (7) are suspended vacantly in the top of water tank (1) by electrode support (11) and are inserted into water tank
(1) in, the bottom end of two electrodes (7) respectively connects a copper wire (6), and the front of motor of two copper wires (6) does not contact, and and water tank
(1) the hole heart for the through-hole being equipped with is in the same plane, and the spacing distance of the bottom end of two copper wires (6) is less than the breakdown of electric spark
Distance；Temperature sensor (8) is fixed on the tops of two copper wires (6) by support, the probe of temperature sensor (8) to two copper
Radius of the distance of the central point of the bottom end line of silk (6) not less than the maximum vaporization bubble that electric spark can generate；By infrared biography
The probe protective cover (208) of light beam (2) is removed, and infrared biography light beam (2) is equipped with the one of object lens (202) and protective glass (201)
End is inserted into water tank (1) from the through-hole of water tank (1) side wall, then probe protective cover (208) is installed on infrared biography light beam (2),
The distance of protective glass (201) to the central point of the bottom end line of two copper wires (6) is not less than the maximum that electric spark can generate
Vaporize the radius of bubble；The outer tube (206) of infrared biography light beam (2) is contacted with the cooperation of the through-hole of water tank (1), and passes through gasket seal
(4) through-hole is sealed with sealing ring (5)；The camera lens bayonet (205) of infrared biography light beam (2) and high speed thermal imaging camera (3)
Camera lens be connected；High speed camera (15) is mounted on water tank (1) and opens up the opposite side of through-hole wall surface, and with the hole heart of through-hole
It is generally aligned in the same plane.
8. a kind of research device of vaporization bubble fuel factor as claimed in claim 7, it is characterised in that：The specific work of described device
Make process：After installing research device according to the installation process, liquid to be studied is poured into water tank (1), liquid is complete
The specific height of total flooding copper wire (6), liquid can need to be adjusted according to experiment；Electric heating tube switch (14) is opened, electricity adds
Heat pipe (9) heats research liquid, the temperature of research liquid, research in temperature sampler (10) real-time display water tank (1)
Liquid closes electric heating tube switch (14) after being heated to assigned temperature；Electric spark control (13) is adjusted and triggered, makes two
Copper wire generates electric spark between (6), and the research liquid around electric spark is rapidly heated and vaporizes, since electric spark generates
Energy it is high and position is concentrated because the vaporization bubble generated is substantially spherical in shape；In the moment of electric spark triggering, pass through computer
(12) control high speed thermal imaging camera (3), high speed camera (15) and temperature sampler (10) work according to the Frequency Synchronization of setting,
Acquisition vaporization is steeped corresponding data in evolution process and is stored in computer (12)；The vapour that temperature sensor (8) collects
The single point temperature of bubble boundary is for calibrating the temperature field that high speed thermal imaging camera (3) collects；To high speed thermal imaging phase
The form for the vaporization bubble that the temperature field and high speed camera (15) that machine (3) collects collect compares and analyzes, and then right
The fuel factor of vaporization bubble evolution process is furtherd investigate.
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| CN201610495983.XA CN106198607B (en) | 2016-06-29 | 2016-06-29 | A kind of research device of vaporization bubble fuel factor |
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| CN201610495983.XA CN106198607B (en) | 2016-06-29 | 2016-06-29 | A kind of research device of vaporization bubble fuel factor |
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| Publication Number | Publication Date |
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| CN106198607A CN106198607A (en) | 2016-12-07 |
| CN106198607B true CN106198607B (en) | 2018-10-16 |
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| CN109269763A (en) * | 2018-10-16 | 2019-01-25 | 四川大学 | Utilize the experimental provision of coaxial source of parallel light observation electric spark bubble collapse shock wave |
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| CN113324731A (en) * | 2021-05-17 | 2021-08-31 | 哈尔滨工程大学 | Experimental device for be used for research of underwater shear flow field electric spark bubble |
| CN114705393B (en) * | 2022-03-24 | 2023-07-04 | 北京理工大学 | Multi-working fluid cavitation generation and observation device |
| CN115326634A (en) * | 2022-07-18 | 2022-11-11 | 重庆大学 | System and method for bubble dynamics visualization |
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