CN110346113A - Low pressure electric spark cavitation experimental provision - Google Patents

Low pressure electric spark cavitation experimental provision Download PDF

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Publication number
CN110346113A
CN110346113A CN201910756418.8A CN201910756418A CN110346113A CN 110346113 A CN110346113 A CN 110346113A CN 201910756418 A CN201910756418 A CN 201910756418A CN 110346113 A CN110346113 A CN 110346113A
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China
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low pressure
electric spark
pressure electric
electrode
electrode assembly
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李博
左志钢
刘树红
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Tsinghua University
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Tsinghua University
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M10/00Hydrodynamic testing; Arrangements in or on ship-testing tanks or water tunnels
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01Arrangements or apparatus for facilitating the optical investigation
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84Systems specially adapted for particular applications
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01Arrangements or apparatus for facilitating the optical investigation
    • G01N2021/0106General arrangement of respective parts
    • G01N2021/0112Apparatus in one mechanical, optical or electronic block

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Fluid Mechanics (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

The present invention relates to cavitation generating device technical fields, more particularly, to a kind of low pressure electric spark cavitation experimental provision comprising low pressure electric spark cavitation generator, apparatus for adjusting position, high-speed camera and electrode assembly;Electrode assembly is electrically connected with the electrode of low pressure electric spark cavitation generator;Electrode assembly is installed on apparatus for adjusting position, to adjust the pose of electrode assembly by apparatus for adjusting position;High-speed camera, for being imaged to cavitation processes.The present invention can reduce cost, and the regulatory function of binding site regulating device and high-speed camera camera function using low pressure electric spark cavitation generator to a certain extent, improve the safety of experiment.

Description

Low pressure electric spark cavitation experimental provision
Technical field
The present invention relates to cavitation generating device technical fields, more particularly, to a kind of low pressure electric spark cavitation experimental provision.
Background technique
When the local pressure of liquid is lower than liquid pressure for vaporization, liquid internal forms steam or bubbing forms bubble That is cavitation bubble, this process are known as cavitation.Cavitation as the variation of surrounding fluid pressure is grown and is disappeared, crumble and fall meeting by cavitation disappearance Phenomena such as induced vibration, noise and cavitation corrosion, the main means for studying cavitation at present are divided into experimental observation research and theoretical calculation is ground Study carefully, and theory analysis is mainly using experimental phenomena as research object, therefore experimental observation is that current research cavitation is dynamic (dynamical) main Means.
Currently, the generation of vacuole mainly utilize it is laser induced, laser it is expensive, operation have certain danger Property.
Summary of the invention
It is existing in the prior art to solve the purpose of the present invention is to provide a kind of low pressure electric spark cavitation experimental provision The generation of vacuole mainly utilize it is laser induced, laser it is expensive, operation there is the technical issues of certain risk.
The present invention provides a kind of low pressure electric spark cavitation experimental provisions comprising: low pressure electric spark cavitation generator, position Set regulating device, high-speed camera and electrode assembly;The electrode of the electrode assembly and the low pressure electric spark cavitation generator Electrical connection;The electrode assembly is installed on the apparatus for adjusting position, to adjust the electricity by the apparatus for adjusting position The pose of pole component;The high-speed camera, for being imaged to cavitation processes.
It further include isochronous controller further in any of the above-described technical solution, the high-speed camera and described low Piezo spark cavitation generator is electrically connected with the isochronous controller respectively.
It further include electrode clamping device further in any of the above-described technical solution, the electrode clamping device installation In on the apparatus for adjusting position, the electrode clamping device is for clamping the electrode assembly.
It further include light source further in any of the above-described technical solution, for providing illumination to the electrode assembly.
In any of the above-described technical solution, further, the electrode assembly includes the first positive electrode and the first negative electrode; First positive electrode is electrically connected with the positive output electrode of the low pressure electric spark cavitation generator;First negative electrode and institute State the negative output electrode electrical connection of low pressure electric spark cavitation generator.
In any of the above-described technical solution, further, the apparatus for adjusting position includes linear motion portion and rotation section, For making the electrode assembly tool, there are three translational degree of freedom in the linear motion portion, and the rotation section is for making the electrode group Part has at least one rotational freedom.
In any of the above-described technical solution, further, the linear motion portion includes first straight line movement mechanism, second Straight-line motion mechanism and third straight-line motion mechanism;The second straight line movement mechanism is installed on the first straight line movement mechanism On, it is moved so that the first straight line movement mechanism is able to drive the second straight line movement mechanism along first direction;It is described Third straight-line motion mechanism is installed on second straight line movement mechanism, so that the second straight line movement mechanism is able to drive institute Third straight-line motion mechanism is stated to move in a second direction;The rotation section is installed on the third straight-line motion mechanism, so that The third straight-line motion mechanism is able to drive the rotation section and moves along third direction.
In any of the above-described technical solution, further, the rotation section includes at least the first rotating bar;The electrode group Part and first rotating bar are rotatablely connected, and first rotating bar and the third straight-line motion mechanism are rotatablely connected.
In any of the above-described technical solution, further, the low pressure electric spark cavitation generator includes change-over switch, electricity Capacitive circuit and power supply;The change-over switch is electrically connected with the power supply and the condenser network respectively, and the change-over switch quilt It is configured to that the power supply is made to charge the condenser network, and the condenser network can be made to discharge.
In any of the above-described technical solution, further, the quantity of the electrode assembly is multiple.
Compared with prior art, the invention has the benefit that
Low pressure electric spark cavitation experimental provision provided by the invention comprising low pressure electric spark cavitation generator, position tune Regulating device, high-speed camera and electrode assembly;Electrode assembly is electrically connected with the electrode of low pressure electric spark cavitation generator;Electrode group Part is installed on apparatus for adjusting position, to adjust the pose of electrode assembly by apparatus for adjusting position;High-speed camera, for pair Cavitation processes are imaged.By the way that electrode assembly is installed on apparatus for adjusting position, and by apparatus for adjusting position to facilitate Adjust electrode assembly posture, convenient for cavitation experiment needs, reduce operational risk, and low pressure electric spark cavitation generator and electricity After the connection of pole component, electrode assembly contact short circuit is set to realize the induction of vacuole, and by high-speed camera in order to cavitation Process is shot, and to obtain the image information in cavitation processes, and uses low pressure electric spark cavitation generator can certain journey Cost, and the regulatory function of binding site regulating device and high-speed camera camera function are reduced on degree, improve the safety of experiment Property.
It should be appreciated that both general description above-mentioned and next specific embodiment be for illustrate and illustrate Purpose and the disclosure may not be limited.It is incorporated to and the attached drawing for constituting part of specification shows the theme of the disclosure.Meanwhile it saying Bright book and attached drawing are used to explain the principle of the disclosure.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of low pressure electric spark cavitation experimental provision provided in an embodiment of the present invention;
Fig. 2 is the circuit diagram of mesolow of embodiment of the present invention electric spark cavitation generator;
Fig. 3 is the structural schematic diagram of apparatus for adjusting position in the embodiment of the present invention;
Fig. 4 is the structural schematic diagram at another visual angle of apparatus for adjusting position in the embodiment of the present invention;
Fig. 5 is the structural schematic diagram of the slide unit of third straight-line motion mechanism in the embodiment of the present invention;
Fig. 6 is the structural schematic diagram of the sliding rail of third straight-line motion mechanism in the embodiment of the present invention;
Fig. 7 is that single vacuole behavioral study of the electrode assembly in round tube tests schematic diagram in the embodiment of the present invention;
Fig. 8 is that single vacuole behavioral study of the electrode assembly in square tube tests schematic diagram in the embodiment of the present invention;
Fig. 9 is that single vacuole behavioral study of the electrode assembly between parallel flat tests signal in the embodiment of the present invention Figure;
Figure 10 is that double vacuole behavioral studies of a pair of electrodes component in round tube test schematic diagram in the embodiment of the present invention;
Figure 11 is that double vacuole behavioral studies of a pair of electrodes component in square tube test schematic diagram in the embodiment of the present invention;
Figure 12 is that double vacuole behavioral studies of a pair of electrodes component between parallel flat test signal in the embodiment of the present invention Figure;
Figure 13 is another distressed structure schematic diagram of low pressure electric spark cavitation experimental provision provided in an embodiment of the present invention.
Icon:
101- low pressure electric spark cavitation generator;102- apparatus for adjusting position;103- high-speed camera;104- electrode group Part;105- isochronous controller;106- light source;107- computer;108- water tank;109- electrode clamping device;The first positive electrode of 110-; The first negative electrode of 111-;112- sliding block;113- pedestal;114- knob;115- column;116- folders;The first rack gear of 117-;118- First gear;119- fixing button;120- clamp holder;121- mounting blocks;122- sliding rail;123- slide unit;124- second gear;125- Two rack gears;126- screws axis;The first rotating bar of 127-;The second rotating bar of 128-;129- screw;130- change-over switch;131- electricity Capacitive circuit;132- power supply;133- capacitor;134- resistance;135- round tube;136- square tube;137- plate;138- box body;139- electricity Road plate.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation Example is a part of the embodiment of the present invention, instead of all the embodiments.
The component for the embodiment of the present invention for usually describing and showing in attached drawing here can be with a variety of different configurations To arrange and design.Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below and is wanted The scope of the present invention of protection is sought, but is merely representative of selected embodiment of the invention.
Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical", The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ", " third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected;It can To be mechanical connection, it is also possible to be electrically connected;It can be directly connected, can also can be indirectly connected through an intermediary Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition Concrete meaning in invention.
Embodiment one
Referring to shown in Fig. 1 to Fig. 6, the embodiment of the present invention one provides a kind of low pressure electric spark cavitation experimental provision, packet It includes: low pressure electric spark cavitation generator 101, apparatus for adjusting position 102, high-speed camera 103 and electrode assembly 104;Electrode group Part 104 is electrically connected with the electrode of low pressure electric spark cavitation generator 101;Electrode assembly 104 is installed on apparatus for adjusting position 102 On, to adjust the pose of electrode assembly 104 by apparatus for adjusting position 102;High-speed camera 103, for cavitation processes into Row camera shooting.
It, in this way can be with specifically, electrode assembly 104 is electrically connected by wires with low pressure electric spark cavitation generator 101 Electrode assembly 104 is introduced into the position of needs, that is to say, that electric wire, which is equivalent to, plays extended function.Apparatus for adjusting position 102 can conveniently adjust the position of electrode assembly 104.
Low pressure electric spark cavitation experimental provision provided in an embodiment of the present invention, by the way that electrode assembly 104 is installed on position In regulating device 102, and by apparatus for adjusting position 102 to facilitate the posture for adjusting electrode assembly 104, convenient for cavitation experiment It needs, reduces operational risk, and after low pressure electric spark cavitation generator 101 is connect with electrode assembly 104, make electrode assembly 104 Contact short circuit realizes the induction of vacuole, and by high-speed camera 103 in order to shoot to cavitation processes, to obtain sky Image information during change, and cost can be reduced using low pressure electric spark cavitation generator 101 to a certain extent, and combine 103 camera function of regulatory function and high-speed camera of apparatus for adjusting position 102, improves the safety of experiment.
In the optional scheme of the embodiment, low pressure electric spark cavitation experimental provision further includes electrode clamping device 109, electrode Clamping device 109 is installed on apparatus for adjusting position 102, and electrode clamping device 109 is used for holding electrode component 104.Pass through electricity Pole clamping device 109 is conducive to the posture for adjusting electrode assembly 104 in order to which electrode assembly 104 is fixed in this way.
Specifically, electrode clamping device 109 can be the clip with insulation function, clip can be ambroin system At or clip on press from both sides electrode assembly 104 position be configured with ambroin.It should be noted that electrode clamping device 109 may be used also There is clamping function device with other, which is no longer specifically described;In addition electrode clamping device 109 can pass through bulb ten thousand Xiang Jieyu apparatus for adjusting position 102 is connected, and electrode clamping device 109 can be made to have by ball head universal so more Freedom degree, and facilitate the spatial attitude for adjusting fixed electrode clamping device 109.
In the optional scheme of the embodiment, low pressure electric spark cavitation experimental provision further includes light source 106, for the electricity Pole component 104 provides illumination, in order to the camera shooting of high-speed camera 103.Light source 106 can be LED light, and LED light can be nothing Stroboscopic LED light.Light source 106 mainly provides light to electrode assembly 104.It should be noted that light source can be installed on a bracket On.
In the optional scheme of the embodiment, low pressure electric spark cavitation experimental provision further includes computer 107, computer 107 and height Fast video camera 103 is electrically connected, and obtains the filmed image of high-speed camera 103 in real time by computer 107.High-speed camera 103 Against electrode assembly, so that high-speed camera 103 can shoot the dynamic process of cavitation.LED light increases intensity of illumination, to mention The picture shooting quality of high high-speed camera 103.
In the optional scheme of the embodiment, the input terminal of low pressure electric spark cavitation generator 101 directly with 220V power supply 132 It is connected, the output end of low pressure electric spark cavitation generator 101 is connected with electrode assembly 104.Electrode assembly 104 includes first just Electrode 110 and the first negative electrode 111;The positive output electrode of first positive electrode 110 and low pressure electric spark cavitation generator 101 is electrically connected It connects;First negative electrode 111 is electrically connected with the negative output electrode of low pressure electric spark cavitation generator 101.It should be noted that electrode The quantity of component 104 can also be multiple, the output with low pressure electric spark cavitation generator 101 respectively of multiple electrodes component 104 End electrical connection, to increase the quantity of the vacuole generated when experiment, to study more vacuole interaction behaviors.Furthermore it is also possible to Make low pressure electric spark cavitation generator 101 quantity may be it is multiple, to increase the quantity of cavitation bubble, to study more vacuoles Interaction behavior.
Specifically, the positive output electrode of the first positive electrode 110 and low pressure electric spark cavitation generator 101 passes through electric wire electricity Connection;The negative output electrode of first negative electrode 111 and low pressure electric spark cavitation generator 101 is electrically connected by wires.In use, First positive electrode 110 of electrode assembly 104 and the first negative electrode 111 are in contact to be shorted.The resistance of first positive electrode 110 134 rates are less than 1 × 10-7 Ω m, and the diameter of the cross section of the first positive electrode 110 is less than 1mm;The electricity of first negative electrode 111 134 rates are hindered less than 1 × 10-7 Ω m, and the diameter of the cross section of the first negative electrode 111 is less than 1mm.In the embodiment, first Positive electrode 110 and the first negative electrode 111 all can be copper wire, and the diameter of cross section is 0.2mm.
In the optional scheme of the embodiment, apparatus for adjusting position 102 includes linear motion portion and rotation section, linear motion portion For making the tool of electrode assembly 104 there are three translational degree of freedom, make it possible to electrode assembly 104 can in above-below direction, left and right directions It is moved up with front and back;Rotation section is for making electrode assembly 104 have at least one rotational freedom.Facilitate adjusting solid in this way The spatial attitude of fixed electrode clamping device 109.In this embodiment, make electrode assembly 104 that there is a rotation certainly with rotation section It is illustrated by spending come example.Linear motion portion is mainly used to adjust the position of electrode assembly 104, and rotation section is mainly used to adjust Save 104 posture of electrode assembly.
In the optional scheme of the embodiment, linear motion portion includes first straight line movement mechanism, second straight line movement mechanism With third straight-line motion mechanism;Second straight line movement mechanism is installed on first straight line movement mechanism, so that first straight line is transported Motivation structure is able to drive second straight line movement mechanism and moves along first direction;Third straight-line motion mechanism is installed on second straight line fortune On motivation structure, moved in a second direction so that second straight line movement mechanism is able to drive third straight-line motion mechanism;Rotation section It is installed on third straight-line motion mechanism, is moved so that third straight-line motion mechanism is able to drive rotation section along third direction, It is easy to implement the multi-direction linear motion of electrode clamping device 109 in this way.
Specifically, first direction, second direction and third direction are vertical two-by-two;First direction and second direction are mutually hung down Directly;Second direction is mutually perpendicular to third direction;First direction is mutually perpendicular to third direction;When first direction is front-rear direction When, second direction is up and down direction, and third direction is left and right directions.
First straight line movement mechanism can be straight line slide unit;Straight line slide unit can be screw rod type straight line slide unit;Second straight line Movement mechanism is installed on the sliding block 112 of straight line slide unit.In use, by being revolved on the pedestal 113 that screws screw rod type straight line slide unit Button 114 realizes the movement of sliding block;First direction is parallel with the axis of lead screw of screw rod type straight line slide unit.
Second straight line movement mechanism includes column 115, seat the 116, first rack gear 117 of folder and first gear 118;Seat folder 116 It is set on column 115;First rack gear 117 is fixed in the strip groove on column 115, and the length direction of the first rack gear 117 It is parallel with the axis of column 115;Second direction is parallel with the axis of column 115;Seat folder 116 is equipped with pin shaft, pin shaft Both ends are fixedly connected with fixing button 119, can be connected by fastening screw between pin shaft and fixing button 119;First gear 118 with Pin shaft is fixedly connected by way of interference fit;First gear 118 is meshed with the first rack gear 117;First gear 118 is located at Between two fixing buttons 119 of pin shaft, and first gear 118 is located between two clamp holders 120 of seat folder 116.In use, passing through Fixing button 119 is screwed to drive first gear 118 to move, so that seat folder 116 be driven to move along the up and down direction of column 115.It needs It is noted that the tooth in the first rack gear 117 and first gear 118 can be helical teeth;Furthermore it is possible to pacify on clamp holder 120 Lock-screw is filled, after position of the adjustment seat folder 116 on column 115 is adjusted, by screwing lock-screw, to use locking screw The end abutment of nail is to the surface of column 115, to guarantee the position of seat folder 116.
Third straight-line motion mechanism includes sliding rail 122 and slide unit 123;Sliding rail 122 can be fixed on seat folder 116 by screw Mounting blocks 121 on;The mounting blocks 121 of seat folder 116 are structure as a whole with clamp holder 120;The length extending direction of sliding rail 122 and Three directions are parallel;The cross section of sliding rail 122 is trapezoidal;Sliding rail 122 is harmonious with slide unit, and slide unit can be along the length of sliding rail 122 It is mobile to spend direction.Sliding slot is offered on slide unit, the cross section of sliding slot is trapezoidal, this ensure that slide unit is not easy on sliding rail 122 It falls.Length direction on sliding rail 122 along its own is provided with mounting groove, and the second rack gear 125 is fixed in mounting groove;Slide unit The slot bottom of sliding slot opens up fluted, and the second gear 124 being meshed with the second rack gear 125 is provided in groove;Second gear 124 It is threaded through and screws on axis 126, and second gear 124 can be fixedly connected with axis 126 is screwed by interference fit or screw.It screws Axis 126 runs through the upper and lower surface of slide unit, and the upper end for screwing axis 126 is limited by nut, and the lower end for screwing axis 126 is fixed with knob 114;In use, realizing that slide unit is moved along the length direction of sliding rail 122 by screwing knob 114.It should be noted that the second tooth Tooth on item 125 and second gear 124 can be helical teeth.
In the optional scheme of the embodiment, rotation section includes at least the first rotating bar 127;Electrode assembly 104 and first turn Lever 127 is rotatablely connected, i.e., electrode assembly 104 is rotatablely connected by electrode clamping device 109 and the first rotating bar 127, and first Rotating bar 127 and third straight-line motion mechanism are rotatablely connected.It is rotated certainly by one of 127 electrode assembly 104 of the first rotating bar By spending.
Specifically, the clamp arm of clip passes through screw 129 and the first rotation when electrode clamping device 109 is using clip One end of bar 127 is connected, and when the angle between the clamp arm for regulating clip and the first rotating bar 127, tightens screw 129 i.e. It can.Rotation section further includes the second rotating bar 128, and the first rotating bar 127 passes through the second rotating bar 128 and third straight-line motion mechanism Connection, i.e. one end of the second rotating bar 128 are connected with slide unit by screw 129, the other end and first of the second rotating bar 128 The other end of rotation phase is connected by screw 129, when regulating the angle between the second rotating bar 128 and column 115, is twisted Screw 129 between tight second rotating bar 128 and slide unit;When regulate the second rotating bar 128 and the first rotating bar 127 it Between angle when, tighten the screw 129 between the second rotating bar 128 and slide unit.One end of second rotating bar 128 and slide unit Between screw 129 axis it is parallel with first direction.
It should be noted that on the basis of the first rotating bar 127 and the second bull stick one rotational freedom of dynamic realization, when When column 115 is around the axis rotation of itself, just realizing rotation section makes rotational freedom there are two the tools of electrode assembly 104;Column 115 around itself axis rotation when, rotation section further includes bearing, and the sliding block of screw rod type straight line slide unit is fixed in the outer ring of bearing In the groove of upper surface, the inner ring of bearing is fixedly connected with column 115, and a upright bar, the top edge of upright bar are further fixed on sliding block Its radial direction is equipped with a screw rod, and the radial screw bore threads turn at the top of screw rod and upright bar, rotary screw can make screw rod One end and the outer surface of upright bar abut against, to realize the locking of the rotation of column 115.
In the optional scheme of the embodiment, low pressure electric spark cavitation generator 101 includes change-over switch 130, condenser network 131 and power supply 132;Change-over switch 130 is electrically connected with power supply 132 and condenser network 131 respectively, and change-over switch 130 is configured For can make power supply 132 to condenser network 131 charge, and can make condenser network 131 discharge.Pass through low pressure electric spark cavitation Generator 101 is in order in realization cavitation.
Specifically, power supply 132 can be adjustable DC power supply, the anode of adjustable DC power supply and the one of a resistance 134 End is connected, and the other end of resistance 134 is connected with the first contact of change-over switch 130;Second contact of change-over switch 130 with Positive output electrode is connected;Negative output electrode is connected with the negative electrode of adjustable DC power supply;Condenser network 131 include it is multiple simultaneously Join the capacitor 133 of connection, optionally, the quantity of capacitor 133 in parallel can be 2,3,4 or 5 to 10 etc.;Capacitor One and tie-point of circuit 131, the tie point between negative output electrode and the negative electrode of adjustable DC power supply are connected;Electricity Another and tie-point of capacitive circuit 131 are connected with the third contact of change-over switch 130.In use, operation change-over switch 130, so that third contact is electrically connected the charging that just can be realized to condenser network 131 with the first contact;Make third contact and second Contact, which is electrically connected, just can be realized the electric discharge of condenser network 131, when electric discharge, make the work of high speed video camera 103 can be to sky Change process is imaged.Condenser network 131 and resistance 134 can integrate on circuit boards.Circuit board 139, power supply 132 and conversion Switch 130 can be installed in a box body, and position of the three in box body 138 can determine according to actual needs, such as electricity Road plate is installed on the intracorporal bottom of box, power supply 132 is installed on the inner wall of box body, and change-over switch 130 is embedded on the side wall of box body, And the shift key of change-over switch 130 is located at the outer surface of box body, in order to be operated to change-over switch 130.
In the optional scheme of the embodiment, low pressure electric spark cavitation experimental provision further includes water tank 108, in use, in water It can be packed into water in case 108, then the first positive electrode 110 of electrode assembly 104 and the first negative electrode 111 are in contact, and inserts Enter in water, just can be realized cavitation when the third contact of change-over switch 130 is electrically connected with the second contact.
The concrete application for the low pressure electrical fire cavitation experimental provision that the embodiment provides is referred to shown in Fig. 7 to Figure 12.
As shown in Figure 7 to 9, schematic diagram of the electrode assembly 104 in various forms of constraint spaces, Fig. 7 are one Single vacuole behavioral study in 104 round tube 135 of electrode assembly tests schematic diagram, and Fig. 8 is in 104 square tube 136 of electrode assembly Single vacuole behavioral study test schematic diagram, Fig. 9 is single vacuole behavioral study between 104 parallel flat 137 of electrode assembly Test schematic diagram.Electrode assembly 104 is placed in above-mentioned constraint space by apparatus for adjusting position 102, connects low pressure electrical fire Flower cavitation generator 101, is also turned on high-speed camera 103, completes single vacuole behavioral experiment.
As shown in Figure 10 to Figure 12, schematic diagram of a pair of electrodes component 104 in various forms of constraint spaces, Tu10Wei Double vacuole behavioral studies in 104 round tube 135 of a pair of electrodes component test schematic diagram, and Figure 11 is 104 square tube of a pair of electrodes component Double vacuole behavioral studies in 136 test schematic diagram, double vacuole rows of the Figure 12 between 104 parallel flat 137 of a pair of electrodes component For research experiment schematic diagram.Two pairs of electrodes component 104 is placed in above-mentioned constraint space by apparatus for adjusting position 102, is connect Logical low pressure electric spark cavitation generator 101, is also turned on high-speed camera 103, completes double vacuoles interaction behavioral experiments.
Embodiment two
Shown in Figure 13, which provides a kind of low pressure electric spark cavitation experimental provision, the embodiment be Further improvement on the basis of embodiment one, technical solution described in embodiment one also belong to the embodiment, embodiment one The technical solution described is not repeated to describe.
In the embodiment, low pressure electric spark cavitation experimental provision further includes isochronous controller 105,103 He of high-speed camera Low pressure electric spark cavitation generator 101 is electrically connected with isochronous controller 105 respectively.
Specifically, the change-over switch 130 of low pressure electric spark cavitation generator 101 is connected with isochronous controller 105, camera shooting Machine is connected with isochronous controller 105, and computer 107 is connected with high-speed camera 103.By isochronous controller 105, with simultaneously Triggering high-speed camera 103 makes its work, and make low pressure electric spark cavitation generator 101 carry out electric discharge work.
In conclusion low pressure electric spark cavitation experimental provision provided in an embodiment of the present invention is safe and reliable, convenient, fast, Vacuole effect is obvious, can efficiently solve the vacuole induction problem under the conditions of Complex Constraints, improve vacuole and induce efficiency, and can save The about energy.Vacuole is excited by low-voltage short-circuiting mode, due to completing the induction of vacuole in the form of electrode contact short circuit, Single vacuole and more vacuole phase interactions when structure that can be very simple and compact and Complex Constraints achievable by independent assortment With the observation of behavior.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations;To the greatest extent Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into Row equivalent replacement;And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution The range of scheme.

Claims (10)

1. a kind of low pressure electric spark cavitation experimental provision characterized by comprising low pressure electric spark cavitation generator, position tune Regulating device, high-speed camera and electrode assembly;The electrode of the electrode assembly and the low pressure electric spark cavitation generator is electrically connected It connects;The electrode assembly is installed on the apparatus for adjusting position, to adjust the electrode group by the apparatus for adjusting position The pose of part;The high-speed camera, for being imaged to cavitation processes.
2. low pressure electric spark cavitation experimental provision according to claim 1, which is characterized in that it further include isochronous controller, The high-speed camera and the low pressure electric spark cavitation generator are electrically connected with the isochronous controller respectively.
3. low pressure electric spark cavitation experimental provision according to claim 1, which is characterized in that further include electrode clamping dress It sets, the electrode clamping device is installed on the apparatus for adjusting position, and the electrode clamping device is for clamping the electrode Component.
4. low pressure electric spark cavitation experimental provision according to claim 1, which is characterized in that further include light source, for pair The electrode assembly provides illumination.
5. low pressure electric spark cavitation experimental provision described in any one of -4 according to claim 1, which is characterized in that the electrode Component includes the first positive electrode and the first negative electrode;First positive electrode is just defeated with the low pressure electric spark cavitation generator Electrode is electrically connected out;First negative electrode is electrically connected with the negative output electrode of the low pressure electric spark cavitation generator.
6. low pressure electric spark cavitation experimental provision described in any one of -4 according to claim 1, which is characterized in that the position Regulating device includes linear motion portion and rotation section, and for making the electrode assembly tool, there are three be translatable certainly in the linear motion portion By spending, the rotation section is for making the electrode assembly have at least one rotational freedom.
7. low pressure electric spark cavitation experimental provision according to claim 6, which is characterized in that the linear motion portion includes First straight line movement mechanism, second straight line movement mechanism and third straight-line motion mechanism;The second straight line movement mechanism installation In on the first straight line movement mechanism, so that the first straight line movement mechanism is able to drive the second straight line fitness machine Structure is moved along first direction;The third straight-line motion mechanism is installed on second straight line movement mechanism, so that described second Straight-line motion mechanism is able to drive the third straight-line motion mechanism and moves in a second direction;The rotation section is installed on described On three straight-line motion mechanisms, moved so that the third straight-line motion mechanism is able to drive the rotation section along third direction.
8. low pressure electric spark cavitation experimental provision according to claim 7, which is characterized in that the rotation section includes at least First rotating bar;The electrode assembly and first rotating bar are rotatablely connected, first rotating bar and the third straight line Movement mechanism rotation connection.
9. low pressure electric spark cavitation experimental provision described in any one of -4 according to claim 1, which is characterized in that the low pressure Electric spark cavitation generator includes change-over switch, condenser network and power supply;The change-over switch respectively with the power supply and described Condenser network electrical connection, and the change-over switch is configured to that the power supply is made to charge the condenser network, Yi Jineng The condenser network is enough set to discharge.
10. low pressure electric spark cavitation experimental provision described in any one of -4 according to claim 1, which is characterized in that the electricity The quantity of pole component is multiple.
CN201910756418.8A 2019-08-15 2019-08-15 Low pressure electric spark cavitation experimental provision Pending CN110346113A (en)

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US20030226825A1 (en) * 2001-06-07 2003-12-11 Yang Shi Tong SW micro welder for directly welding enameled wires
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CN109048186A (en) * 2018-09-18 2018-12-21 海洋石油工程股份有限公司 The pipe Clamp of vertical welding bench
CN109269764A (en) * 2018-10-31 2019-01-25 四川大学 The synchronous experimental facility of cavitation bubble and air bubble that underwater low-voltage discharge induces
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
CN210166117U (en) * 2019-08-15 2020-03-20 清华大学 Low-voltage electric spark cavitation experimental device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030226825A1 (en) * 2001-06-07 2003-12-11 Yang Shi Tong SW micro welder for directly welding enameled wires
CN2611087Y (en) * 2003-03-13 2004-04-14 山东豪迈机械科技有限公司 Electrospark taking screwtap machine tool
CN203830379U (en) * 2014-04-02 2014-09-17 洛阳理工学院 Manipulator of cleaning device for precision parts
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