CN203816565U - Complex-frequency emulsified fluid power sound production device - Google Patents

Abstract

The utility model relates to a multiple-frequency emulsified fluid dynamic sounding device, which is provided with a nozzle on one side of the casing, and a bracket opposite to the nozzle on the other side, at least one nozzle is processed on the nozzle, and the middle part of the bracket is processed with The flow hole, the periphery of the flow hole is provided with reeds corresponding to the nozzles one by one, and each reed is facing the jet flow direction of the nozzle, and the length or/and thickness of one reed is the same as the length or/or thickness of the adjacent reed different from the thickness. The utility model can generate a plurality of different sound wave frequencies, which is helpful for the emulsification and mixing of the liquid, and the reed is easier to vibrate, and the reed is not easy to break during a long working time, and can be directly connected between the pipelines to emulsify It has high mixing efficiency, stable operation, simple structure and low cost, and is suitable for engineering applications.

Description

Multiple-frequency emulsification hydrodynamic sounding device

technical field

The utility model belongs to the technical field of ultrasonic mixing or emulsification, in particular to a multiple-frequency emulsification fluid dynamic sounding device which uses fluid as a power source to realize deep emulsification or mixing.

Background technique

At present, the reed whistle, as a fluid dynamic sounding device for acoustic cavitation amplification from laboratory effects to engineering applications, has received extensive research and attention on its application effects. The jet liquid sheet excites the reed to vibrate to generate sound waves or ultrasonic waves. The liquid passes through the nozzle channel. Due to the expansion of the cross section, more cavitation bubbles are formed in the low-pressure area. Under the action of the reed vibration and sound waves, the cavitation bubbles grow and collapse. Cavitation is generated, and the high temperature and high pressure generated during the cavitation process together with the sound wave vibration process oil and water, so that the molecular structure changes to achieve emulsification or mixing.

However, most of the fluid power sounding devices use a single reed whistle, which has a single frequency, is not adjustable, and has low flexibility. It often produces a large amplitude and the reed is easy to break. When dealing with a large amount of fluid, a certain volume of container is required. The working conditions are harsh and the processing capacity is weak. Therefore, the current single reed whistle hydrodynamic sounding device is greatly limited in practical application, and it is difficult to achieve the desired effect.

Utility model content

In order to overcome the shortcomings of the single reed whistle fluid power sounding device in the prior art, the utility model provides a kind of sound wave generating device with different frequency, high fluid emulsification and mixing efficiency, strong cavitation effect, stable operation and structure A simple, low-cost multiple-frequency emulsified hydrodynamic sounding device.

The technical scheme adopted by the utility model to solve the above-mentioned technical problems is: a nozzle is provided on one side of the casing, and a bracket opposite to the nozzle is provided on the other side, at least 2 nozzles are processed on the nozzle, and an overflow is processed in the middle of the bracket. Holes, the periphery of the flow hole is provided with reeds corresponding to the nozzle one by one, and each reed is facing the jet flow direction of the nozzle, the length or/and thickness of one reed is the same as the length or/and thickness of the adjacent reed Not the same, the distance between the free end of each reed and the spout is 1-6mm.

The nozzles above are preferably distributed in a regular polygon with at least 3 sides, and 3 to 6 rectangular nozzles are preferably processed on the nozzle 2 .

There may also be two nozzles and they are distributed symmetrically about the central axis on the nozzle.

The length of the cross-section of the nozzle is 10-20 mm, the width is 1-2 mm, the length of the flow channel is 5 mm-20 mm, and the cross-section of the flow channel is rectangular or streamlined or tapered.

The number of the above-mentioned reeds can be an even number, and the length and thickness of two reeds set up oppositely are the same.

The number of the above-mentioned reeds can also be an odd number, and the length and thickness of each reed 3 are different.

The above-mentioned reeds preferably have a length of 20-50 mm and a thickness of 0.5-2.0 mm, which is easy to vibrate.

Both the above bracket and the nozzle are threadedly connected with the casing, and the thread pitch of the bracket and the nozzle is 4mm.

An observation window can also be processed on the casing to adjust the distance between the reed and the nozzle.

The utility model provides a multiple-frequency emulsified fluid dynamic sounding device. Its working principle is: the nozzle and the bracket are combined through a sleeve, and a reed is installed on the bracket. The reed is facing the nozzle of the nozzle and is in contact with The nozzles are one-to-one correspondence. After the fluid is ejected through the slit of the nozzle, more cavitation bubbles are formed in the low-pressure area due to the expansion of the cross-section, and cavitation occurs through growth and collapse. The processed liquid jet excites the reed to vibrate to produce The sound waves are mixed and emulsified under the vibration of the reeds. At the same time, the cavitation bubbles are easier to grow and collapse under the action of the reeds, thereby enhancing the cavitation effect, thus promoting the mixing or emulsification of liquids and improving fluid emulsification. and mixing efficiency to enhance the cavitation effect.

The casing of the utility model is also provided with positioning holes and positioning grooves for installing nozzles and reed brackets to ensure that the jet is facing the reeds. The thickness and length between adjacent reeds are different, and multiple different The frequency of the sound wave is helpful for the emulsification and mixing of the liquid. The reeds and the spouts are distributed symmetrically about the center, which can produce certain modulation for vibration interference, and the reeds are easier to vibrate. In a long working time, the reeds It is not easy to break, and the utility model can also be directly connected between pipelines, while a single reed whistle needs a certain volume of container when working, so the working conditions of a single reed whistle are more stringent, and the cost is relatively high. When dealing with a large amount of fluid, the ability of a single reed whistle is obviously weak, and it is difficult to complete it in a short time, but the utility model device can avoid this disadvantage, and several devices of the utility model are connected in series between pipelines, which is beneficial to the treatment of a large amount of fluid More effective. The distance between the nozzle and the reed is changed by the movable bracket, the structure is convenient to adjust and replace, the device operates stably, and is suitable for industrial application. In summary, the utility model has high emulsification and mixing efficiency, stable operation, simple structure and low cost, and is suitable for engineering applications.

Description of drawings

Fig. 1 is a schematic structural view of Embodiment 1 of the present utility model.

FIG. 2 is a schematic structural diagram of the casing 1 in FIG. 1 .

FIG. 3 is a schematic structural diagram of the nozzle 2 in FIG. 1 .

FIG. 4 is a schematic structural diagram of the bracket 4 in FIG. 1 .

FIG. 5 is a schematic diagram of the connection between the reed 3 and the bracket 4 in FIG. 1 .

Detailed ways

The technical solution of the utility model is now further described in conjunction with the accompanying drawings, but the utility model is not limited to the following implementation situations.

Example 1

It can be seen from FIG. 1 that the multiple-frequency emulsification hydrodynamic sound generating device of this embodiment is composed of a casing 1 , a nozzle 2 , a reed 3 and a bracket 4 .

Referring to Fig. 1, the casing 1 of this embodiment is circular, and four symmetrically distributed positioning holes and two mutually parallel positioning grooves are processed on its side wall, and an internal thread is processed on the inner wall of the casing 1. Both ends of the casing 1 are provided with external threads combined with pipe fittings or pipes. A nozzle 2 is installed inside the casing 1, as shown in Figure 2, an external thread matching the casing 1 is processed outside the side wall of the nozzle 2, the pitch of the external thread is 4mm, and 2 other threads are processed on the side wall of the nozzle 2 to match the casing 1. The slot hole corresponding to the positioning groove of the sleeve 1 is fastened with bolts to realize the positioning of the nozzle 2 and the sleeve 1. The end surface of the nozzle 2 is processed with 4 rectangular nozzles, and the 4 rectangular nozzles are distributed in a regular quadrilateral on the nozzle 2, that is, The centerlines of the two adjacent spouts are vertical, the cross-section of the flow channel of each spout is rectangular, the length of the flow channel is 15 mm, and the cross-section is rectangular, with a length of 15 mm and a width of 1.5 mm. A circular support 4 is installed in the jet flow direction of the nozzle 2, and the side wall of the support 4 is processed with external threads with a pitch of 4mm. °, the support 4 is screwed forward by 1mm, and 4 concave surfaces are also processed on the side wall of the support 4 in the direction corresponding to the spout, and a reed 3 is fastened with a thread on each concave surface, and each reed 3 is connected to the spout. One-to-one correspondence, each reed 3 is facing the nozzle, and its free end is 2mm away from the nozzle, that is, the four reeds 3 are distributed in a regular quadrilateral on the bracket 4, and the length and thickness of one reed 3 and the adjacent reed 3 Not the same, but the length and thickness of two opposite reeds 3 are the same, that is, the effective length of a reed 3 is 35mm, and the thickness is 1mm, and the effective length of an adjacent reed 3 is 30mm, and the thickness is 1mm. The wedges of the reed 3 are all asymmetrical triangular structures with an apex angle of 30° with respect to the center line of the reed, which is easier to vibrate. A circular flow hole is processed at the center of the support 4, and the liquid jetted from the spout flows out through the flow hole to prevent the liquid from flowing back.

When in use, the casing 1 is connected in series between the pipes, the liquid enters the nozzle 2 and is ejected from the nozzle, the fluid section expands, and more cavitation bubbles are formed in the low-pressure area, and cavitation is generated through growth and collapse, and the jet is directed at the nozzle The four reeds 3 in the direction vibrate under the excitation of the liquid jet to generate sound waves, and mix and emulsify under the action of vibration. At the same time, the cavitation bubbles are easier to grow and collapse under the action of the reeds 3, thereby enhancing cavitation effect, so it can promote liquid mixing or emulsification, and then the liquid flows out through the flow hole of the bracket 4. Due to the difference in length and thickness between two adjacent reeds 3, the frequency of the sound wave generated by it is different, realizing multiple frequency liquid Efficient emulsification or blending.

Example 2

The end face of the nozzle 2 of this embodiment is processed with 4 rectangular nozzles, and the 4 rectangular nozzles are distributed in a regular quadrilateral on the nozzle 2. The flow channel section of each nozzle is tapered, and the length of the flow channel is 5mm. 10mm, 2mm wide rectangle. A circular bracket 4 is installed on the jet flow direction of the nozzle 2, and 4 concave surfaces are also processed on the side wall of the bracket 4 in the direction corresponding to the nozzle, and a reed 3 is fastened with a screw on each concave surface, and each spring The piece 3 is facing the nozzle, and its free end is 1mm away from the nozzle. The length and thickness of one reed 3 and the adjacent reed 3 are different, but the length and thickness of the two opposite reeds 3 are the same. A group of reeds The effective length of 3 is 20mm, and the thickness is 0.5mm. The effective length of an adjacent reed 3 is 22mm, and the thickness is 0.6mm.

Other components and their structures and connections are the same as those in Embodiment 1.

Example 3

The end face of the nozzle 2 of this embodiment is processed with 4 rectangular spouts, and the 4 rectangular spouts are distributed in a regular quadrilateral on the nozzle 2. The flow passage section of each spout is streamlined, the flow passage length is 20mm, and its cross-sectional length is 20mm and a width of 1mm. A circular bracket 4 is installed on the jet flow direction of the nozzle 2, and 4 concave surfaces are also processed on the side wall of the bracket 4 in the direction corresponding to the nozzle, and a reed 3 is fastened with a screw on each concave surface, and each spring The piece 3 is facing the spout, and its free end is 6mm away from the spout. The length and thickness of one reed 3 and the adjacent reed 3 are different, but the length and thickness of the two reeds 3 arranged oppositely are the same. A group of reeds 3 The effective length of the reed is 50mm, and the thickness is 2mm, and the effective length of another group of reeds 3 is 40mm, and the thickness is 1mm.

Other components and their structures and connections are the same as those in Embodiment 1.

Example 4

In this embodiment, an observation window is processed on the side wall of the middle section of the casing 1, so as to adjust the distance between the reed 3 and the nozzle 2, which is more conducive to observing the working state of the reed 3.

Two rectangular spouts distributed symmetrically about the central axis of the nozzle 2 are processed on the end surface of the nozzle 2. The length of the spouts is 12 mm, and the width is 1.8 mm. The cross section of the flow channel is convergent. Correspondingly, two reeds 3 are also fixed on the bracket 4, each reed 3 faces the nozzle, the effective length of one reed 3 is 40mm, and the thickness is 1.8mm, and the effective length of the adjacent reed 3 is 40mm, The thickness is 1mm.

Other components and their structures and connections are the same as any one of Embodiments 1, 2, and 3.

Example 5

The end face of the nozzle 2 of this embodiment is processed with 6 rectangular spouts, which are distributed in a regular hexagon on the nozzle 2. The cross-section of each spout is 18mm long and 1.2mm wide. Two reeds 3, each reed 3 faces the spout, the thickness is the same between adjacent reeds 3, the length is different, the structure of the two reeds 3 that set up relatively is exactly the same, and the effective length of one group of reeds 3 is 35mm, thickness is 1mm, the effective length of another group of reed 3 is 40mm, and thickness is 1mm, and the effective length of another group of reed 3 is 42mm, and thickness is 1mm.

Other components and their structures and connections are the same as any one of Embodiments 1, 2, and 3.

Example 6

The end face of the nozzle 2 of this embodiment is processed with 3 rectangular spouts, which are distributed in an equilateral triangle on the nozzle 2, that is, the 3 spouts are arranged in an equilateral triangle on the end face of the nozzle 2, and the cross-section of each spout is 13mm long and 1.6mm wide. Correspondingly, three reeds 3 are also fixed on the bracket 4, each reed 3 faces the jet flow direction of the nozzle, the effective length of the first reed 3 is 34mm, and the thickness is 1mm, and the second reed 3 The effective length is 36mm, and the thickness is 1mm. The effective length of the third reed 3 is 38mm, and the thickness is 1.5mm.

Other components and their structures and connections are the same as any one of Embodiments 1, 2, and 3.

The distance between the reed 3 and the nozzle 2 as well as the thickness, length and shape of the reed 3 of the utility model can be adjusted according to actual usage conditions.

Claims (10)

1. a multifrequency emulsified fluid power sound-producing device, it is characterized in that: in sleeve pipe (1), a side is provided with nozzle (2), opposite side is provided with the support (4) relative with nozzle (2), nozzle is processed with at least 2 spouts on (2), the middle part of support (4) is processed with flowing hole, flowing hole periphery is provided with and spout reed (3) one to one, and each reed (3) is over against the jet direction of spout, the length of a reed (3) or/and thickness with the length of an adjacent reed (3) or/and thickness is not identical, the free end of each reed (3) and the distance between spout are 1～6mm.

2. multifrequency emulsified fluid power sound-producing device according to claim 1, is characterized in that: described spout is the regular polygon distribution that is at least 3 limits on nozzle (2).

3. multifrequency emulsified fluid power sound-producing device according to claim 2, is characterized in that: on described nozzle (2), be processed with 3～6 rectangular jets.

4. multifrequency emulsified fluid power sound-producing device according to claim 1, is characterized in that: described spout is 2 and symmetrical about central shaft on nozzle.

5. according to the multifrequency emulsified fluid power sound-producing device described in claim 1 or 2 or 3 or 4, it is characterized in that: the cross-section lengths of described spout is that 10～20mm, width are 1～2mm, runner is long is 5mm～20mm, and described spout cross section of fluid channel is rectangle or streamlined or taper.

6. multifrequency emulsified fluid power sound-producing device according to claim 1, is characterized in that: the number of described reed (3) is even number, and the length of two reeds (3) of relatively setting up is identical with thickness.

7. multifrequency emulsified fluid power sound-producing device according to claim 1, is characterized in that: the number of described reed (3) is odd number, and length and the thickness of each reed (3) are different.

8. according to the multifrequency emulsified fluid power sound-producing device described in claim 1 or 6 or 7, it is characterized in that: the length of described reed (3) is that 20～50mm, thickness are 0.5～2.0mm.

9. multifrequency emulsified fluid power sound-producing device according to claim 1, it is characterized in that: described support (4) and nozzle (2) all pass through thread connection with sleeve pipe (1), and the thread pitch of support (4) and nozzle (2) is 4mm.

10. multifrequency emulsified fluid power sound-producing device according to claim 1, is characterized in that: on sleeve pipe (1), be processed with watch window.