阅读说明：本技术 一种超声波管式反应器 (Ultrasonic wave tubular reactor ) 是由 张琳 徐蕾 于 2020-12-17 设计创作，主要内容包括：本发明的实施例提供的超声波管式反应器,超声波管式反应器包括超声换能器和流体管道,所述超声换能器包括前盖板,所述前盖板上具有前辐射面,所述流体管道设置在所述前辐射面上。本实施例提供的超声波管式反应器,将所述流体管道直接设置在超声换能器的前辐射面上,超声波能够直接进入到所述流体管道内,由于超声换能器的前辐射面的面积比较大,中间没有传递介质,因此超声能量在传递进入所述流体管道的过程中衰减小,使得超声能量传递进入所述流体管道内的效率高,而且所述超声波管式反应器,结构简单,流体管道的加工成本低,流体管道可随时更换,根据实际需要便于调节流体管道长度和布局。(The ultrasonic tubular reactor provided by the embodiment of the invention comprises an ultrasonic transducer and a fluid pipeline, wherein the ultrasonic transducer comprises a front cover plate, a front radiation surface is arranged on the front cover plate, and the fluid pipeline is arranged on the front radiation surface. According to the ultrasonic tubular reactor provided by the embodiment, the fluid pipeline is directly arranged on the front radiation surface of the ultrasonic transducer, ultrasonic waves can directly enter the fluid pipeline, and due to the fact that the area of the front radiation surface of the ultrasonic transducer is large and no transmission medium is arranged in the middle of the front radiation surface, attenuation of ultrasonic energy in the process of transmitting the ultrasonic energy into the fluid pipeline is small, efficiency of transmitting the ultrasonic energy into the fluid pipeline is high, the ultrasonic tubular reactor is simple in structure and low in machining cost of the fluid pipeline, the fluid pipeline can be replaced at any time, and the length and layout of the fluid pipeline can be adjusted conveniently according to actual needs.)

1. An ultrasonic tubular reactor comprising an ultrasonic transducer and a fluid conduit, the ultrasonic transducer comprising a front cover plate having a front radiating face thereon, the fluid conduit being disposed on the front radiating face.

2. An ultrasonic tubular reactor according to claim 1 wherein the fluid conduit is arranged in a coil on the front radiating surface.

3. The ultrasonic tube reactor of claim 1, wherein the fluid conduit comprises a plurality of first flow conduits, all of the first flow conduits are arranged on the front radiation surface, and all of the first flow conduits are sequentially connected through a bend pipe.

4. An ultrasonic tube reactor according to claim 3 wherein all of said first flow channel tubes are equally spaced in parallel on said front radiating surface.

5. The ultrasonic tube reactor of claim 3, wherein the bending tube is a plastic tube or a silicone tube, and the first flow channel tube is a glass tube or a metal tube.

6. An ultrasonic tube reactor according to claim 5 wherein the shortest distance from the end of the tube of the first flow channel to the edge of the front radiating surface is equal to an integer multiple of half the wavelength of the ultrasonic waves in the tube of the first flow channel or in the fluid conduit.

7. An ultrasonic tubular reactor as claimed in claim 1 wherein the hydraulic diameter of the cross-sectional inner profile of the fluid conduit is in the range of 0.1 to 100 mm.

8. An ultrasonic tubular reactor according to claim 7 wherein the ultrasonic transducer is a sandwich ultrasonic transducer having an ultrasonic frequency in the range of 18-1000 kHz.

9. The ultrasonic tubular reactor of any one of claims 1-8, wherein the ultrasonic transducer further comprises a piezoelectric ceramic stack and a back cover plate, the piezoelectric ceramic stack and the front cover plate being connected in sequence.

10. The ultrasonic tubular reactor of claim 1, wherein the front cover plate is cylindrical, conical, exponential, or catenary, the fluid conduit has a cross-section with an outer contour that is circular, elliptical, or rectangular, and the fluid conduit has a cross-section with an inner contour that is circular, elliptical, or rectangular.

Technical Field

The invention relates to the technical field of ultrasonic devices, in particular to an ultrasonic tubular reactor.

Background

The continuous reactor based on the micro-pipeline has the advantages of controllable process, simple operation, high safety and the like, and is widely applied to the field of synthesis of fine chemicals and medical materials. However, the mixing of a pure empty pipe is relatively weak, especially when the flow rate is low and the flow conditions do not reach turbulent flow. In order to enhance the mixing of the fluid in the pipe, it is common practice to provide some mixing structure in the pipe, such as bending, deformation of the pipe, or built-in static mixing members, baffles, etc. These mixing structures can cut the fluid or create local vortices as it passes through, resulting in enhanced fluid mixing. This method of mixing is commonly referred to as passive mixing.

This method has two disadvantages. First, the tiny conduits themselves are easily clogged by solid particles, and the provision of these mixing structures further increases the risk of clogging of the conduits. Secondly, the mixing method is extremely dependent on the flow rate of the fluid, and has a good mixing effect only when the flow rate is high, so that the mixing method has poor operation elasticity, a narrow operation window and is not beneficial to a process with long retention time. The active method for enhancing mixing can solve the problems well. Active mixers enhance fluid mixing within a pipe by external fields. The mixing effect of the method is mainly determined by the intensity of an external field and is independent of the flow velocity of the fluid; therefore, the mixing effect and the residence time can be separately adjusted, the operation range is large, the elasticity is good, and the device is suitable for low-flow or high-flow operation. Among the various active mixers, ultrasonic-based tube mixers are the most promising. Because the ultrasound is a mechanical wave, the ultrasonic wave is safe and reliable; meanwhile, equipment such as an ultrasonic cleaning machine and the like is large-scale and practical in the industry, and the equipment for generating the ultrasonic waves is mature in technology and low in cost.

The technical problem that the efficiency of ultrasonic energy is low due to the fact that ultrasonic waves have energy loss in high-pressure water and are reflected by the wall surface of the water and the pipeline is greatly reduced.

Disclosure of Invention

In order to solve the above problems, an object of the present invention is to provide an ultrasonic tubular reactor, which is used to solve the technical problems in the prior art that ultrasonic waves have energy loss in high-pressure water, and the ultrasonic waves are reflected by water and the wall surface of a pipeline, thereby greatly reducing the efficiency of energy transmission into the pipeline and resulting in low efficiency of ultrasonic energy.

In order to solve the technical problem, the embodiment of the invention adopts the following technical scheme:

an embodiment of the present invention provides an ultrasonic tubular reactor, including an ultrasonic transducer including a front cover plate having a front radiating surface thereon and a fluid conduit disposed on the front radiating surface.

Further, the fluid conduit is arranged in a spiral on the front radiating surface.

Furthermore, the fluid pipeline comprises a plurality of first flow channel pipes, all the first flow channel pipes are arranged on the front radiation surface, and all the first flow channel pipes are sequentially communicated through bent pipes.

Furthermore, all the first flow channel pipes are parallel and uniformly distributed on the front radiation surface at equal intervals.

Furthermore, the bending pipe is a plastic pipe or a silicone tube, and the first flow channel pipe is a glass pipe or a metal pipe.

Further, the shortest distance from the pipe end of the first flow channel to the edge of the front radiation surface is equal to integral multiple of half wavelength of the ultrasonic wave in the first flow channel pipe or the fluid in the fluid pipeline.

Further, the hydraulic diameter of the inner contour of the cross-section of the fluid conduit is in the range of 0.1-100 mm.

Further, the ultrasonic transducer is a sandwich type ultrasonic transducer, and the ultrasonic frequency of the sandwich type ultrasonic transducer is in the range of 18-1000 kHz.

Furthermore, the ultrasonic transducer also comprises a piezoelectric ceramic stack and a rear cover plate, wherein the rear cover plate, the piezoelectric ceramic stack and the front cover plate are sequentially connected.

Further, the front cover plate is cylindrical, conical, exponential or catenary, the outer contour of the cross section of the fluid pipeline is circular, elliptical or rectangular, and the inner contour of the cross section of the fluid pipeline is circular, elliptical or rectangular.

Compared with the prior art, the embodiment of the invention has the beneficial effects that:

the ultrasonic tubular reactor provided by the embodiment of the invention comprises an ultrasonic transducer and a fluid pipeline, wherein the ultrasonic transducer comprises a front cover plate, a front radiation surface is arranged on the front cover plate, and the fluid pipeline is arranged on the front radiation surface. According to the ultrasonic tubular reactor provided by the embodiment, the fluid pipeline is directly arranged on the front radiation surface of the ultrasonic transducer, ultrasonic waves can directly enter the fluid pipeline, and due to the fact that the area of the front radiation surface of the ultrasonic transducer is large and no transmission medium is arranged in the middle of the front radiation surface, attenuation of ultrasonic energy in the process of transmitting the ultrasonic energy into the fluid pipeline is small, efficiency of transmitting the ultrasonic energy into the fluid pipeline is high, the ultrasonic tubular reactor is simple in structure and low in machining cost of the fluid pipeline, the fluid pipeline can be replaced at any time, and the length and layout of the fluid pipeline can be adjusted conveniently according to actual needs.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an ultrasonic tubular reactor according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of the internal and external contours of a fluid conduit of an ultrasonic tubular reactor according to embodiments of the present invention;

FIG. 3 is a schematic diagram of the internal and external contours of another fluid conduit of an ultrasonic tubular reactor according to an embodiment of the present invention;

FIG. 4 is a schematic view of a flow tube of an ultrasonic tubular reactor disposed on a front radiation surface according to an embodiment of the present invention;

FIG. 5 is a schematic view of another embodiment of the present invention in which the fluid line of an ultrasonic tubular reactor is disposed on the front radiation surface;

wherein:

1. an ultrasonic transducer; 11. a rear cover plate; 12. a piezoelectric ceramic stack; 13. a front cover plate; 14. a front radiating surface; 2. a fluid conduit; 21. an outer contour; 22. an inner contour; 23. a first flow channel pipe; 3. and (6) bending the pipe.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, unless otherwise explicitly stated or limited. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

Fig. 1 is a schematic structural diagram of an ultrasonic tubular reactor according to an embodiment of the present invention.

As shown in fig. 1 to 5, the present embodiment provides an ultrasonic tubular reactor, where the ultrasonic tubular reactor includes an ultrasonic transducer 1 and a fluid pipeline, the ultrasonic transducer 1 includes a front cover plate 13, a piezoelectric ceramic stack 12 and a rear cover plate 11, the piezoelectric ceramic stack 12 and the front cover plate 13 are connected in sequence, the front cover plate 13 has a front radiation surface 14, and the fluid pipeline is disposed on the front radiation surface 14.

In order to enable the utilization rate of the ultrasonic transducer 1 to be higher, the front cover plate 13 is cylindrical, conical, exponential or catenary, and particularly preferably conical, so that the front radiating surface 14 can better diffuse and transmit ultrasonic waves to the fluid pipeline; in order to facilitate the absorption of the ultrasonic waves by the fluid conduit, the outer contour 21 of the cross-section of the fluid conduit is circular, elliptical or rectangular, and the inner contour 22 of the cross-section of the fluid conduit is circular, elliptical or rectangular. The inner contour 22 and the outer contour 21 of the cross section of the fluid conduit may also have various other irregular shapes, and for convenience of processing, the inner contour 22 and the outer contour 21 of the cross section of the fluid conduit are preferably circular and rectangular.

Wherein, the ultrasonic transducer 1 is a sandwich type ultrasonic transducer 1, and the ultrasonic frequency thereof is in the range of 18-1000 kHz. Particularly preferably 18 to 500 kHz.

Wherein the hydraulic diameter of the inner contour 22 of the cross-section of the fluid conduit is in the range of 0.1-100 mm. More preferably 0.5 to 5 mm.

As shown in fig. 4, the fluid conduit is arranged in a spiral on the front radiating surface 14 in order to enhance the reception of the ultrasonic energy within the fluid conduit. The ultrasonic waves directly act on the spirally arranged fluid pipeline, the fluid pipeline can better receive the ultrasonic energy, the utilization rate of the ultrasonic transducer 1 is improved, and the working efficiency of the ultrasonic tubular reactor is improved.

In addition, as shown in fig. 5, in order to improve the reception of the ultrasonic energy in the fluid pipeline, the fluid pipeline may further include a plurality of first flow channel pipes 23, all the first flow channel pipes 23 are arranged on the front radiation surface 14, and all the first flow channel pipes 23 are sequentially communicated through the bending pipe 3. In order to facilitate the arrangement of the first flow channel pipes 23 on the front radiation surface 14 and to improve the utilization rate of the first flow channel pipes 23 on the ultrasonic waves emitted by the ultrasonic transducer 1, all the first flow channel pipes 23 are uniformly distributed on the front radiation surface 14 in parallel with equal intervals. The bending pipe 3 is a plastic pipe or a silicone tube, and the first flow channel pipe 23 is a glass pipe or a metal pipe. Specifically, the shortest distance from the end of the first flow channel to the edge of the front radiation surface 14 is equal to an integral multiple of half the wavelength of the ultrasonic wave in the first flow channel pipe 23 or the fluid in the fluid pipeline.

The ultrasonic tubular reactor provided by the embodiment has the fluid pipeline directly arranged on the front radiation surface 14 of the ultrasonic transducer 1, the ultrasonic waves can directly enter the fluid pipeline, because the area of the front radiation surface 14 of the ultrasonic transducer 1 is relatively large, no transmission medium is arranged in the middle, therefore, the attenuation of ultrasonic energy in the process of transmitting the ultrasonic energy into the fluid pipeline is small, so that the efficiency of transmitting the ultrasonic energy into the fluid pipeline is high, the ultrasonic tubular reactor has simple structure, low processing cost of the fluid pipeline, and the fluid pipeline can be replaced at any time, according to actual needs, the length and layout of the fluid pipeline are convenient to adjust, the fluid pipeline is spirally arranged on the front radiation surface 14 or all the first flow channel pipes 23 are arranged on the front radiation surface 14, and all the first flow channel pipes 23 are sequentially communicated through the bent pipes 3.

In addition, compared with the plate-type reactor connected to the front radiation surface 14 of the ultrasonic transducer 1, the ultrasonic tube reactor provided by the embodiment has better and high ultrasonic energy efficiency, simple structure and low processing cost of the fluid pipeline, the fluid pipeline can be replaced at any time, the length and layout of the fluid pipeline can be conveniently adjusted according to actual needs, and the problems of high processing cost and difficult amplification in the plate-type reactor are solved.

The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.