CN2252059Y

CN2252059Y - Device for converted fluid energy normal shock wave to ultrosonic wave energy

Info

Publication number: CN2252059Y
Application number: CN 95212961
Authority: CN
Inventors: 姚纪
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-06-14
Filing date: 1995-06-14
Publication date: 1997-04-16
Anticipated expiration: 2005-06-14

Abstract

The utility model relates to a device for converting fluid energy normal shock wave to ultrasonic wave energy. The utility model aims to overcome the shortage that the efficiency of a present ultrasonic transducer is low, and circular plates are easy to crush by shocking. The utility model adopts that at least a groove is arranged on the end surface of each circular plate; the end surfaces of two circular plates which are provided with grooves are tightly contacted to form the grooves which present cross shapes, and the two grooves are communicated in the center of the circular plates, but the two grooves are not positioned on the same planes of the circular plates, so that two paths of pressure flow are caused to enter the same groove to clash reversely to generate velocity pulse, and accordingly, the transduction efficiency is improved. The utility model can be widely used for dispersing, emulsifying and uniformly combining liquid, and can also be used for crushing and processing solid powder; the utility model has the advantages of low cost and durability.

Description

Fluid can be changed ultrasonic wave power device by normal shock wave

The utility model belongs to the improvement structure of ultrasonic transducer.

For the emulsification of liquid, dispersion, synthetic, homogeneous phase or pressed powder is carried out super fine crushing all adopt ultrasonic transducer, its operation principle (as shown in Figure 1) is with high pressure liquid stream to be quickened, high velocity liquid stream is positioned at an end face of the plectane 2 of hydrodynamic pipe front end along moving stream pipe 1 directive, after being subjected to its bump, side direction is quickened shunting, utilize liquid to collapse and produce fluctuation, ultrasonic wave is sent in the vibration of excitation plectane.An echo plate 3 is put at the plectane back side, and to wave reflection, machined object is subjected to Lamb wave and shears between plectane and echo plate.Compressional-dilatational wave belongs to compressional wave, that is to say that jet does not make its vibration perpendicular to the plectane spray, and will make fluid be parallel to the plate end face as far as possible, utilizes compressional-dilatational wave, just can make panel vibration.This method encourages oblique shock wave.Oblique shock wave is different with normal shock wave to be because of the medium physical characteristic is different, and incidence wave all produces refraction at his interface, and velocity of wave is changed.And normal shock wave excitation incident is consistent with refractive direction, makes velocity of wave constant.Therefore, same stream can be forced under the material condition, the amplitude of normal shock wave excitation, bigger than oblique shock wave.And present ultrasonic transducer all adopts oblique shock wave to encourage, and its shortcoming mainly is that fluid is low by energy transformation energy efficient, and it is broken also very easily plectane to be shaken.

Therefore, the purpose of this utility model is: design a kind of fluid and can change ultrasonic wave power device by normal shock wave, and can transformation energy efficient to improve fluid.

The utility model realizes that the method for purpose is: a kind of fluid can be changed ultrasonic wave power device by normal shock wave, formed by moving stream pipe and plectane, has a groove on plectane one end face at least, the end face that has two plectanes of groove is adjacent to forms only communicate the groove that is X-shape on the not same plectane plane at plectane center of two grooves, at least two strands of pressure fluids enter the groove on the same plane of same plectane, the X-shape ditch groove center of forming at plectane clashes in opposite directions, pressure fluid flows into another at grade another plectane groove not of the plectane that pastes mutually perpendicular to the plectane end face direction that enters plying then, and flow out the assembly of plectane from its end points, press eaves to be positioned at plectane assembly two ends.It is identical with groove end points quantity on this plectane plane to enter the number of share of stock of the conplane pressure fluid of plectane.The two-end-point that is positioned at the groove on plectane one end face can be positioned on end face or the end surface side.The plectane assembly is two plectane combinations, two plectanes and the combination of middle plectane, the combination of two plectanes and two middle plectanes.Plectane is circular, square, hexagon, octagonal.

The utility model has the advantages that the ultrasonic wave transducer device of the velocity pulse wave excitation rigid plate vibration that utilizes fluid in passage, to clash in opposite directions and produce, belong to the normal shock wave transducing head.It is different from the existing oblique shock wave fluid transducing head that utilizes the vibration of fluid compressional-dilatational wave excitation plectane.This design improves fluid greatly can transformation energy efficient.Same stream can be forced under the material condition, the utility model be traditional structure efficient 5-7 doubly.And plectane can use for a long time, thereby reduces use cost greatly.

Below in conjunction with Figure of description and embodiment the utility model is further described.

Fig. 1 is the traditional structure principle schematic

Fig. 2 and Fig. 7 are the utility model plectane schematic diagram

Fig. 3 is the upward view of Fig. 2

Fig. 4, Figure 11, Figure 13, Figure 15 are the utility model schematic diagram

Fig. 5 looks and local enlarged diagram for the left side of Fig. 4

Fig. 6 is the utility model scheme of installation

Fig. 8 is the schematic side view of Fig. 7

Fig. 9 and Figure 12 are the utility model middle circle plate structure schematic diagram

Figure 10 makes up schematic diagram for Fig. 7-Fig. 9

Figure 14 is the schematic side view of Figure 13

Because the utility model is a kind of modified, no longer describes for the high pressure accelerator in the traditional structure.Inventive point of the present utility model concentrates on moving stream pipe 1, plectane 2 and middle plectane 21 as described in Figure 1 and presses on the electromagnetic shaker device of eaves 12 compositions, only moves this part and is described in detail.

Embodiment 1:

(referring to Fig. 2-Fig. 6), on plectane 2 back side diameters that two rigid materials are made, respectively draw the identical groove of a strip 4, the end face that then two plectanes is had groove is adjacent to relatively, and fastening with mechanical means, form two grooves and only communicate in the not passage that is X-shape on same plectane plane at plectane center, at this moment, the groove of two plectane end faces is the right-angled intersection shape, and two groove interface area are less than the summation of the sectional area of two grooves.At this moment form two groups of relative through holes in combination plectane side.(Fig. 4) 1 two strands of high-pressure fluids when doing are pressed into same groove at two

slot holes

5,6 that are positioned at plate side two ends simultaneously, two plumes are at circle centre position head-on collision interflow, and flow into another groove of another plectane, be divided into again two strands from the combination plectane side in addition two slot holes 7,8 flow out.Because two groove shapes are identical, the speed that two plumes enter is also identical with the speed of coming out.And according to hydromechanical bernoulli principle, fluid flows forward along a different pipe of width, and the narrower part flow velocity is fast, and pressure is little, and the slow pressure of wider portion flow velocity is big.According to Newtonian mechanics principle, the momentum after the object head-on collision calculates with acceleration movement again.Interflow after the head-on collision of two plumes adds the reduced cross-sectional area factor.Flow velocity can be the several times of former speed, even tens times and produce velocity pulse.(kinetic energy pulse) notes two gutter channel not in one plane, and back, interflow flow direction is perpendicular to the plectane end face.Because of the fluid velocity impulse wave belongs to shear wave, can encourage plectane to be forced to steady-state vibration and to produce ultrasonic wave.If fluid is a non-newtonian liquid, can be emulsified under ultrasonic wave amplitude shines.Dispersion, homogeneous, synthetic.If fluid is the carrier of pressed powder, pressed powder can be broken, therefore, two strands of pressure fluids enter the groove on the same plane of same plectane, the X-shape ditch groove center of forming at plectane clashes in opposite directions, pressure fluid flows into another at grade another plectane groove not of the plectane that pastes mutually perpendicular to the plectane end face direction that enters plying then, and flows out the assembly of plectane and produce vibration from its end points.

In the manufacturing process, available pipe will move the shunting of stream liquid in pipe and introduce the slot hole two ends, also can on moving stream inside pipe wall, make two conduits 14 that communicate with same plane plectane groove two stomidiums as shown in Figure 6, the combination of vibrations body that two plectanes are formed is fixed between the two pressure eaves, press eaves fastening by the spiral shell button again with moving stream inside pipe wall, press eaves 12 to be positioned at plectane assembly two ends, its middle part is provided with groove 13, and effect is an oscillation space of reserving the plectane assembly.During use, the liquid material of need processing is mixed into liquid stream along moving stream pipe, enters assembly (as mentioned above) through conduit and finish processing.

Obviously this principle project organization can derive from following various scheme.

Embodiment 2:

Respectively draw the groove of one group of right-angled intersection two plectane one side end faces, two plectane grooved surfaces are adjacent to relatively, allow groove be a meter word cross shaped head (Figure 15), four plumes in place's head-on collision in opposite directions with one heart, flow out from four slot holes of another plectane simultaneously then.Perhaps respectively draw three grooves of joining in the center of circle two plectane one side end faces, two plectanes are adjacent to the back groove and are flakes.After the three plumes head-on collisions respectively from the plectane combination of other three hole exits.This design can make interface sectional area ratio trench cross section area that two plate grooves communicate and ratio littler, velocity pulse is stronger.Certainly, manufacture difficulty and selection plectane material difficulty are also big.Obviously, it is identical with the groove end points quantity of this plectane cheek to enter the number of share of stock of the conplane hydraulic fluid of plectane.

Embodiment 3:

(referring to Fig. 7-Figure 10): form with three measure-alike plectanes.Wherein two plectane one end faces each make a call to four symmetrical through holes 15, and draw twice to be the groove of cruciform shape between four through holes overleaf.Plectane 21 draws two right-angled intersection grooves in the middle of another on positive and negative both ends of the surface diameter.Two porose plectanes outside during three plectane combinations, plectane was interior in the middle of a two sides was fluted, and after three plectanes were adjacent to, groove was a meter word with groove and intersects, when high-pressure fluid enters groove from each four through hole at plectane combination two ends, four slotted eyes shuntings are from the side flowed out after the head-on collision.This design is actual to be designed to the echo plate with middle plectane, can prevent that the vibration of plectane two ends is excessive, causes the plectane excessive deformation and fragmentation.

Embodiment 4:

(referring to Figure 11): each makes a call to four symmetrical through holes on two plectane end faces, draw two grooves that are right-angled intersection between the backside through vias, tighten up two plectanes are back-to-back then, allowing groove be meter word intersects, fluid four logical grooves that also flow into from the positive end face of plectane combination, head-on collision back four through holes from the other end flow out, and this scheme relatively saves trouble when making the plectane fixed container.From as can be known above, the two-end-point that is positioned at the groove on plectane one end face can be positioned at outside end face or the end face.

Embodiment 5:

(referring to Figure 12-Figure 14): each makes a call to two symmetrical through holes on two end faces in four plectanes, draws one to connect groove between the backside through vias.Draw a groove and groove 10, two grooves to be right-angled intersection on the plectane 9 double-edged diameters at other in the middle of two, wherein groove is identical between surface groove shape and above-mentioned preceding two the plectane through holes, and groove 10 sectional areas in the back side are wanted greatly.When fastening, four plates are adjacent to, paste mutually with latter two middle plectane 9 end faces at the preceding two plectane back sides, and groove and groove are right-angled intersection.Plectane 9 back sides are adjacent in the middle of latter two, and two grooves are parallel.Moving stream flows into from four through holes at plectane combination two ends, and four slotted eyes in slave plate side flow out.2 11 1 in bigger groove holes, side are the material to be machined inlets, and another is outlet.The design separates flow channel and material flow passage, but the increment materials flow is subjected to wave amplitude according to the time, also can prevent that the material flow passage from stopping up.Obviously, the plectane assembly can be two plectane combinations, two plectanes and middle plectane 21 combinations, and two plectanes and two middle plectanes combinations can be used for different purposes.

The shape of plate can have circular plate type.Also can be at sketch plate.For example: square plate, hexagonal plate, octagonal plate, special-shaped plate is with mechanical fasteners and be sealed in the electromagnetic shaker more convenient, need not make locating hole onboard, side outlet hole and pipeline add edge fit and might as well design, but press part outside the eaves at the end face and the back side, in the time of also will recovering circle plate be out of shape in the wave pressure effect, stressed even, can bear than large amplitude.Selecting for use on the material of plate, be used for various objectives processing, select different materials for use, during broken pressed powder, select good rigidly for use, the material that hardness is high, diamond, carborundum etc.These materials can improve the pressure of ripple to the wave reflection very high speed.When Working liquids, select the higher material of intrinsic frequency for use, image-stone English etc.Increase vibration frequency, the fluid molecule collision frequency is improved, accelerate chemical reaction.During the designed channel flow velocity, the material velocity that rigidity is big wants fast, and speed is fast more, and the amplitude of plate is big more.

In chemical field, the device of this patent design is mainly used in emulsifying liquid, dispersion, synthesizes, all equates item, also can be used for carrying out the fragmentation of pressed powder.Because cost is low, China's industrial technology at present can make, and might develop into the visual plant of chemical field in the future.

Claims

1, a kind of fluid can be changed ultrasonic wave power device by normal shock wave, formed by moving stream pipe (1) and plectane, it is characterized in that having a groove (4) on plectane one end face at least, the end face that has two plectanes of groove is adjacent to forms only communicate the groove that is X-shape on the not same plectane plane at plectane center of two grooves, at least two strands of pressure fluids enter the groove on the same plane of same plectane, the pressure fluid that the X-shape ditch groove center of forming at plectane clashes in opposite directions flows into another at grade another plectane groove not of the plectane that pastes mutually perpendicular to the plectane end face direction plying that enters, and presses eaves to be positioned at plectane assembly two ends.

2, can change ultrasonic wave power device by normal shock wave by the described a kind of fluid of claim 1, it is characterized in that the two-end-point that is positioned at the groove on plectane one end face can be positioned on end face or the end surface side.

3, can change ultrasonic wave power device by normal shock wave by the described a kind of fluid of claim 1, it is characterized in that the plectane assembly, be two plectanes combinations, two plectanes and middle plectane (21) combination, the combination of plectanes (9) in the middle of two plectanes and two.

4, can change ultrasonic wave power device by normal shock wave by the described a kind of fluid of claim 1, it is characterized in that plectane is circular, square, hexagon, octagonal.