CN209993341U

CN209993341U - Strong sound source device based on fluid dynamics

Info

Publication number: CN209993341U
Application number: CN201920666682.8U
Authority: CN
Inventors: 张敏军
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-10
Filing date: 2019-05-10
Publication date: 2020-01-24
Anticipated expiration: 2029-05-10

Abstract

The utility model discloses a strong sound source device based on fluid dynamics, including a pipe body, the one end of body is provided with the loudspeaker cavity, and an end upper surface and the lower surface of body all are provided with the mounting groove, two the inside of mounting groove is embedded respectively and is installed first sound wave receiving transducer and second sound wave receiving transducer, the first sensor cooling duct of one side fixedly connected with of first sound wave receiving transducer. The utility model relates to the technical field of sound generation by airflow modulation, which is a strong sound source device based on fluid dynamics, and the device has simple structure design, can directly generate strong sound in fluid and avoid the use of a vibration film; the volume is small, the mobility is good, and the device can operate in a high-temperature, dusty and corrosive gas environment for a long time; the energy conversion efficiency is high, the power is high, the practical value is high, and the energy conversion device is used as a sound source of a high-temperature acoustic thermometer; in the petroleum industry, the method can be used for plugging removal and injection increase of oil wells.

Description

Strong sound source device based on fluid dynamics

Technical Field

The utility model relates to a technical field of air current modulation production sound specifically is a strong sound source device based on fluid dynamics.

Background

Acoustics refers to the science of researching the generation, transmission, reception and effect of sound waves, acoustics is one of the branch subjects of the earliest deep research in physics, with the invention and application of radio technology in the 19 th century, the generation, transmission, reception and measurement technology of sound waves has the leap development, the recent acoustics has extremely strong permeability, acoustics is crossed with many other subjects (such as physics, chemistry, materials, life, geography, environment, etc.), engineering technology (such as machinery, building, electronics, communication, etc.) and art fields, important and unique functions are played in the fields, corresponding theories and technologies are further developed, so that independent acoustic branches are formed step by step, strong sound generators in various forms are required in the modern acoustics research, generally, three categories of explosion sound generation, electric sound generation and airflow sound generation are considered by the generation mode with the outlet sound pressure level being more than 130dB, in the industrial application field, mainly electric sounding and airflow modulation sounding researches are taken as main researches.

However, when the existing electric sound production mode is used for producing stronger sound, the equipment is too large in size and high in cost, so that the long-term operation in a severe environment is difficult.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a strong sound source device based on fluid dynamics has solved present electric sound production mode when wanting to produce than stronger sound, because the volume of equipment is too bulky, with high costs, consequently hardly long-term operation's under adverse circumstances problem.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a strong sound source device based on fluid dynamics, includes the body, the one end of body is provided with the loudspeaker cavity, and one end upper surface and the lower surface of body all are provided with the mounting groove, two the inside embedding respectively of mounting groove is installed first sound wave receiving transducer and second sound wave receiving transducer, the first sensor cooling duct of one side fixedly connected with of first sound wave receiving transducer, one side fixedly connected with second sensor cooling duct of second sound wave receiving transducer, the spray tube is installed to the other end upper surface embedding of body, and the other end surface of body is provided with the end cover.

Preferably, a pipeline is arranged inside the spray pipe and is designed to be of a Laval pipe structure.

Preferably, the outer surfaces of the two ends of the spray pipe are provided with threads, one end of the spray pipe is fixedly connected with external equipment, and the spray pipe is controlled through an electromagnetic valve.

Preferably, the horn cavity is a stainless steel member, and the angle of the horn cavity is 8-23 ° of the expansion angle.

Preferably, a small hole is formed in the middle of the surface of one end of the end cover, and the diameter of the small hole is 3 mm.

Preferably, the angle of first sound wave receiving transducer and horizontal direction is 84 degrees, the angle of second sound wave receiving transducer and horizontal direction is 81 degrees, length between loudspeaker cavity and the end cover is 295 millimeters, the inside length of loudspeaker cavity is 35.03 millimeters, the wall thickness of body is 25 millimeters.

Advantageous effects

The utility model provides a strong sound source device based on fluid dynamics compares with prior art and possesses following beneficial effect:

according to the strong sound source device based on fluid dynamics, the horn cavity is arranged at one end of the pipe body, the upper surface and the lower surface of one end of the pipe body are respectively provided with the mounting grooves, the first sound wave receiving sensor and the second sound wave receiving sensor are respectively embedded and mounted in the two mounting grooves, the spray pipe is embedded and mounted on the upper surface of the other end of the pipe body, the end cover is arranged on the surface of the other end of the pipe body, the pipeline is designed to be of a Laval pipe structure, the device is simple in structural design, and strong sound can be directly generated in fluid to avoid the use of a vibration film; the volume is small, the mobility is good, and the device can operate in a high-temperature, dusty and corrosive gas environment for a long time; the energy conversion efficiency is high, the power is high, the practical value is high, and the energy conversion device is used as a sound source of a high-temperature acoustic thermometer; in the petroleum industry, the method can be used for plugging removal and injection increase of oil wells and wax removal and lipid reduction of petroleum; other industries can be used for energy conservation, dust prevention, scale removal, bird repelling, fog repelling and the like.

Drawings

FIG. 1 is a perspective view of the structure of the present invention;

fig. 2 is a schematic view of a first acoustic wave receiving sensor structure according to the present invention;

FIG. 3 is an internal schematic view of the nozzle structure of the present invention;

fig. 4 is a sectional view of the structure of the present invention.

In the figure: the acoustic wave sensor comprises a pipe body 1, a horn cavity body 2, a mounting groove 3, a first acoustic wave receiving sensor 4, a second acoustic wave receiving sensor 5, a first sensor cooling air duct 6, a second sensor cooling air duct 7, a spray pipe 8, a pipeline 81, threads 82, an end cover 9 and small holes 91.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a strong sound source device based on fluid dynamics comprises a tube body 1, wherein a horn cavity 2 is arranged at one end of the tube body 1, the horn cavity 2 is a stainless steel component, the angle of the horn cavity 2 is an expansion angle of 8-23 degrees, in order that the tail part of the horn cavity 2 serves as a sound production cavity for generating sonic boom by supersonic gas, mounting grooves 3 are respectively arranged on the upper surface and the lower surface of one end of the tube body 1, a first sound wave receiving sensor 4 and a second sound wave receiving sensor 5 are respectively embedded and mounted in the two mounting grooves 3, a first sensor cooling air duct 6 is fixedly connected to one side of the first sound wave receiving sensor 4, a second sensor cooling air duct 7 is fixedly connected to one side of the second sound wave receiving sensor 5, a spray pipe 8 is embedded and mounted on the upper surface of the other end of the tube body 1, a pipeline 81 is arranged in the spray pipe 8, and the pipeline, the outer surfaces of two ends of the spray pipe 8 are provided with threads 82, one end of the spray pipe 8 is fixedly connected with external equipment, the spray pipe 8 is controlled through an electromagnetic valve, in order to enable compressed gas to form supersonic flow gas when passing through the spray pipe 8, the end cover 9 is arranged on the surface of the other end of the pipe body 1, the angle between the first sound wave receiving sensor 4 and the horizontal direction is 84 degrees, the angle between the second sound wave receiving sensor 5 and the horizontal direction is 81 degrees, the length between the horn cavity 2 and the end cover 9 is 295 millimeters, the internal length of the horn cavity 2 is 35.03 millimeters, the wall thickness of the pipe body 1 is 25 millimeters, in order to enable the device to be small in size and convenient to move, a small hole 91 is formed in the middle position of the surface of one end of the end cover 9, the diameter of the small hole 91 is 3 millimeters, and in order.

When the device is used, firstly, compressed air under certain pressure flows through the spray pipe 8 by controlling the switch of the electromagnetic valve, and due to the fact that the spray pipe 8 is designed by the aid of the Laval tube, when the gas passes through the spray pipe 8, supersonic flow gas can be obtained at a spray opening of the spray pipe 8, the first sound wave receiving sensor 4 and the second sound wave receiving sensor 5 can receive radiated sound, then the supersonic flow gas generates super-strong sonic boom sound at the tail of the horn cavity 2, finally the sound is radiated out through the horn cavity 2, the maximum sound intensity can reach 150dB, the sound intensity is larger when the pressure is larger, the device has great advantage when being used for a large-space high-temperature acoustic temperature measuring instrument, and the sound can penetrate through an effective distance of more than 50 meters in a high-temperature gas environment with extremely high attenuation speed.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A hydrodynamically-based intense sound source device comprising a tubular body (1), characterized in that: the one end of body (1) is provided with loudspeaker cavity (2), and the one end upper surface and the lower surface of body (1) all are provided with mounting groove (3), two the inside embedding respectively of mounting groove (3) is installed first sound wave receiving transducer (4) and second sound wave receiving transducer (5), the first sensor cooling duct (6) of one side fixedly connected with of first sound wave receiving transducer (4), one side fixedly connected with second sensor cooling duct (7) of second sound wave receiving transducer (5), spray tube (8) are installed to the other end upper surface embedding of body (1), and the other end surface of body (1) is provided with end cover (9).

2. A hydrodynamically based intense acoustic source apparatus according to claim 1 and wherein: a pipeline (81) is arranged inside the spray pipe (8), and the pipeline (81) is designed to be of a Laval pipe structure.

3. A hydrodynamically based intense acoustic source apparatus according to claim 1 and wherein: the outer surfaces of two ends of the spray pipe (8) are provided with threads (82), one end of the spray pipe (8) is fixedly connected with external equipment, and the spray pipe (8) is controlled through an electromagnetic valve.

4. A hydrodynamically based intense acoustic source apparatus according to claim 1 and wherein: the horn cavity (2) is a stainless steel component, and the angle of the horn cavity (2) is 8-23 degrees of expansion angle.

5. A hydrodynamically based intense acoustic source apparatus according to claim 1 and wherein: a small hole (91) is formed in the middle of the surface of one end of the end cover (9), and the diameter of the small hole (91) is 3 mm.

6. A hydrodynamically based intense acoustic source apparatus according to claim 1 and wherein: first sound wave receiving transducer (4) is 84 degrees with the angle of horizontal direction, second sound wave receiving transducer (5) is 81 degrees with the angle of horizontal direction, length between loudspeaker cavity (2) and end cover (9) is 295 millimeters, the inside length of loudspeaker cavity (2) is 35.03 millimeters, the wall thickness of body (1) is 25 millimeters.