Modular sound insulation device and sound insulation adjustment method

Abstract

The present invention provides a modular sound insulation device and a method for adjusting sound insulation, wherein the device includes an installation module and a sound insulation module; wherein the installation module is spliced ​​from a plurality of installation units; the installation unit is a square frame including two front and rear installation surfaces; the sound insulation module is spliced ​​from a plurality of sound insulation units; the sound insulation unit is a rectangular hollow structure; the size of the sound insulation unit is the same as that of the installation unit; the sound insulation unit is installed on the installation surface of the installation unit; the sound insulation unit is provided with a medium inlet and a medium outlet on a side adjacent to the installation unit; the medium inlets of the plurality of sound insulation units are connected to form an inlet pipeline through a pipe, and the medium outlets of the plurality of sound insulation units are connected to form an outlet pipeline through a pipe. The advantages of the present invention are: it can realize the rapid assembly of the overall sound insulation device; it can realize the flexible effect of adjustable quality and sound insulation according to the actual application scenario; it can realize stable temperature control while adjusting the sound insulation; and it can realize sound insulation and magnetic shielding at the same time.

Description

Technical Field

[0001] The present invention belongs to the field of sound insulation material and structural acoustic performance design, and specifically relates to a modular sound insulation device and a sound insulation adjustment method for quickly constructing a sound insulation environment within a full frequency band. Background Art

[0002] Sound insulation control is the primary technical means of controlling noise propagation pathways and a traditional research hotspot. In his masterpiece, "Theory of Sound," 19th-century physicist Rayleigh first derived the mass law formula for thin wall sound insulation. Subsequently, Cremer discovered that the projected wavelength of a sound wave coincides with the bending wavelength of a plate, further refining the mass law. He then conducted research on the sound insulation performance of double-layer and multi-layer lightweight composite structures. While low-frequency sound insulation can be improved within a certain frequency range by controlling stiffness and damping, the mass law still cannot be escaped across the entire frequency range. Currently, traditional sound insulation technologies can effectively control mid- and high-frequency noise. However, due to the long wavelength and strong penetration of low-frequency noise, the sound insulation is controlled by both stiffness and mass, making it difficult for lightweight wall structures to achieve high sound insulation at low frequencies.

[0003] For sound insulation materials and structures, in the medium and low frequency range below 500Hz, since their performance is controlled by the law of stiffness and mass, high sound insulation means a larger surface density and higher structural stiffness. On the one hand, generally lightweight sound insulation walls have a large area, low stiffness and surface density, and limited sound insulation capacity; on the other hand, heavy structures have greatly increased stiffness and surface density, but the transportation and installation links are extremely inconvenient. Therefore, in actual use, it is time-consuming and labor-intensive; for certain materials and structures, under limited thickness conditions, it is impossible to improve their low-frequency sound insulation performance through on-site mass surface density adjustment, and the design flexibility is insufficient.

[0004] Sound insulation materials are often used in conjunction with sound-absorbing and thermal insulation materials, further enhancing their sound absorption and insulation capabilities. However, they cannot regulate indoor ambient temperature, requiring reliance on indoor air conditioning systems for temperature control. Furthermore, existing sound insulation equipment lacks electromagnetic shielding, limiting its application environments. Summary of the Invention

[0005] The purpose of the present invention is to overcome the defects of existing sound insulation devices that the sound insulation performance cannot be adjusted as needed and the function is single.

[0006] In order to achieve the above-mentioned object, the present invention proposes a modular sound insulation device, which includes an installation module and a sound insulation module; wherein,

[0007] The installation module is composed of multiple installation units; the installation unit is a square frame, including two front and rear installation surfaces;

[0008] The sound insulation module is composed of multiple sound insulation units; the sound insulation unit is a rectangular hollow structure; the size of the sound insulation unit is the same as that of the mounting unit; the sound insulation unit is mounted on the mounting surface of the mounting unit;

[0009] The sound insulation unit is provided with a medium inlet and a medium outlet on a side adjacent to the mounting unit;

[0010] The medium inlets of the plurality of sound insulation units are connected through a pipe to form an inlet pipeline, and the medium outlets of the plurality of sound insulation units are connected through a pipe to form an outlet pipeline.

[0011] As an improvement to the above device, the device further includes an exhaust module; the exhaust module is used to exhaust the gas in the sound insulation unit.

[0012] As an improvement to the above device, the device further comprises a circulation pump; the circulation pump is connected to the inlet pipeline and is used to pump the sound insulation medium into the sound insulation module.

[0013] As an improvement to the above device, the device further includes a temperature control module; the temperature control module is connected to the circulation pump and is used to control the temperature of the sound insulation medium in the sound insulation module using the circulation pump.

[0014] As an improvement to the above device, the sound insulation medium is gas or liquid.

[0015] As an improvement to the above device, a conductive material is added to the liquid sound insulation medium.

[0016] As an improvement to the above device, the conductive material is metal or salt.

[0017] As an improvement to the above device, sealing strips made of damping material are pasted around the four sides of the sound insulation unit.

[0018] As an improvement to the above device, the edges of the sound insulation units are mortise and tenon structures, and adjacent sound insulation units are spliced ​​together through the mortise and tenon structures.

[0019] The present invention also provides a method for adjusting the sound insulation of a modular sound insulation device, which is implemented based on the above device and includes:

[0020] Step 1: Use sound insulation modules and installation modules to build a sound insulation environment according to the application site. The sound insulation modules are installed on one or both sides of the installation module according to the sound insulation performance.

[0021] Step 2: Select the sound insulation medium according to the required sound insulation frequency; for high-frequency sound insulation, use a gas medium with a characteristic impedance less than 200N·S / m 3 ; When used for medium and low frequency sound insulation, liquid medium is used, and the characteristic impedance is greater than 1.0×106 N·S / m 3 .

[0022] As an improvement to the above method, the method further includes:

[0023] When electromagnetic shielding is required, metal or salt is added to the liquid medium to achieve electromagnetic shielding.

[0024] As an improvement to the above method, the method further comprises:

[0025] According to the sound insulation environment requirements, the sound insulation performance of the sound insulation module can be changed by adjusting the temperature of the sound insulation medium.

[0026] Compared with the prior art, the advantages of the present invention are:

[0027] 1. The sound insulation device of the present invention has a lightweight structure and is easy to transport;

[0028] 2. The modular design enables rapid assembly of the overall sound insulation device;

[0029] 3. According to the actual application scenario, the sound insulation module can be installed on one or two mounting surfaces of the mounting module by filling different liquids and gaseous media to achieve a flexible effect of adjustable quality and sound insulation;

[0030] 4. It is equipped with a temperature control module, which can achieve stable temperature control while adjusting the sound insulation. By utilizing the property that the modulus of polymer materials changes with temperature, the modulus of polymer materials can be controlled by adjusting the temperature to adjust its sound insulation. The indoor temperature of the sound insulation environment can be adjusted to play the role of air conditioning.

[0031] 5. The box-shaped sound insulation units can be located on the front and rear sides of the installation module to form a double-layer sound insulation device. Compared with the homogeneous structure with the same surface density, the impedance mismatch of the air layer between the layers can be used to further improve its sound insulation. To a certain extent, it breaks through the limitation of the mass law. A double-layer lightweight structure with a lower surface density can be used to achieve the sound insulation effect of a single-layer uniform heavy structure, further realizing lightweighting.

[0032] 6. Sound insulation and magnetic shielding can be achieved simultaneously by adding magnetic shielding materials to the liquid sound insulation medium.

[0033] 7. By controlling the filling medium, the overall structural quality and the adjustable sound insulation function can be achieved, which greatly enriches the use functions of traditional sound insulation devices and can meet the requirements of various application scenarios through simple combination. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 Shown is a schematic diagram of the installation module;

[0035] Figure 2Shown is a schematic diagram of two installation modules splicing;

[0036] Figure 3 Shown is a schematic diagram of the sound insulation module;

[0037] Figure 4 Shown is a schematic diagram of the sound insulation module being installed on the mounting module;

[0038] Figure 5 Shown is a front view of a sound insulation curtain wall composed of 16 box-shaped sound insulation modules and installation modules;

[0039] Figure 6 Shown is a schematic diagram of the back of the sound insulation curtain wall composed of 16 box-shaped sound insulation modules and installation modules.

[0040] Reference numerals:

[0041] 1. Installation unit 2. Locking buckle

[0042] 3. Locking knob 4. Locking spring

[0043] 5. Sound insulation unit 6. Reinforcement ribs

[0044] 7. Positioning screw hole 8. Sealing strip

[0045] 9. Positioning pin / hole 10. Media inlet

[0046] 11. Media outlet DETAILED DESCRIPTION

[0047] The technical solution of the present invention is described in detail below with reference to the accompanying drawings.

[0048] The present invention proposes a modular sound insulation device and a sound insulation adjustment method, which can achieve adjustable mass and sound insulation performance. According to different application scenarios, under the condition of limited thickness, the modular lightweight sound insulation device can achieve rapid transportation and installation. Different types of media such as liquids and gases are used to cleverly achieve on-site adjustment of the sound insulation unit mass, meeting the requirements of the surface density of heavy and lightweight sound insulation devices in different application scenarios. The temperature of the sound insulation medium is controlled by a temperature control unit, so that the sound insulation device has the ability to adjust the temperature within a certain range, and no longer relies on the indoor air conditioning system for ambient temperature control.

[0049] The present invention provides a modular sound insulation device, which mainly includes an installation module, a sound insulation module, and a temperature control module. The installation module is composed of multiple installation units 1 that are quickly spliced ​​together via a locking device. The installation unit 1 is a lightweight square frame, including two front and rear installation surfaces, and the sound insulation module is installed on the installation surface of the installation module. The sound insulation module is composed of multiple sound insulation units 5 spliced ​​together. The sound insulation unit 5 is a rectangular hollow structure integrally formed of a polymer material, and its external dimensions are the same as those of the installation unit 1. The sound insulation unit 5 is provided with reinforcing ribs 6 inside. The sound insulation unit 5 is provided with a medium inlet 10 and a medium outlet 11 on the side adjacent to the installation unit 1. The medium inlets 10 of the multiple sound insulation units 5 are connected to form an inlet pipe through a hose, and the medium outlets 11 of the multiple sound insulation units 5 are connected to form an outlet pipe through a hose. The sound insulation unit 5 is connected to a medium source through the inlet pipe to fill the sound insulation medium, and the sound insulation medium is discharged through the outlet pipe. The sound insulation medium is a gas or liquid, and the sound insulation level can be adjusted by changing the material of the sound insulation medium. The temperature control module is connected to a circulation pump. To control the temperature of the sound insulation medium, connect the outlet pipe to the temperature control module's inlet and the inlet pipe to the module's outlet. The circulation pump is then turned on to circulate the sound insulation medium, which has been conditioned by the temperature control module, back into the module, achieving temperature control. The temperature of the sound insulation module changes with the sound insulation medium, thereby adjusting the module's sound insulation performance. The temperature control module can maintain a constant temperature at multiple points within the sound insulation medium, providing a stable temperature environment.

[0050] The temperature control module adopts the temperature control module of existing mature technology.

[0051] Furthermore, a conductive material may be added to the fluid sound insulation medium to achieve electromagnetic shielding; the conductive material is a metal or a salt.

[0052] Furthermore, valves are installed at both the media inlet 10 and the media outlet 11 to control the flow and on / off of the fluid medium. The inlet piping includes multiple tees and multiple sections of polymer hose that are slightly larger than the distance between the media inlets of the two sound insulation modules, enabling quick installation of the inlet piping. The outlet piping also includes multiple tees and multiple sections of polymer hose that are slightly larger than the distance between the media outlets of the two sound insulation modules, enabling quick installation of the outlet piping. Sealing strips made of damping material are also affixed around the perimeter of the sound insulation unit 5 to prevent sound leakage.

[0053] Furthermore, the edges of the sound insulation units 5 are of mortise and tenon structures, and adjacent sound insulation units 5 are spliced ​​together through the mortise and tenon structures, thereby reducing sound leakage at the joints of adjacent sound insulation units 5 .

[0054] Furthermore, the locking device includes a locking spring 4, a locking buckle 2 and an insert locking knob 3. Both sides of the mounting unit 1 are mounting surfaces. According to different sound insulation and load-bearing requirements, the sound insulation unit 5 can be installed on one or both mounting surfaces.

[0055] Furthermore, the sound insulation unit 5 is filled with a gas medium for high-frequency sound insulation, and the characteristic impedance is less than 200N·S / m 3 The gas medium can be helium or hydrogen.

[0056] The sound insulation unit 5 is filled with liquid medium for low and medium frequency sound insulation, and its characteristic impedance is greater than 1×10 6 N·S / m 3 The liquid medium can be water or silicone oil.

[0057] The surface density of the installation unit 1 does not exceed 15kg / m 2 , which can be spliced ​​into structural load-bearing frames of different sizes according to actual scenarios.

[0058] The sound insulation unit 5 adopts a Young's modulus of not less than 1GPa and a density of not more than 1300kg / m 3 polymer materials.

[0059] Furthermore, positioning screw holes 7 are provided at corresponding positions of the mounting surface of the mounting unit 1 and the sound insulation unit 5 for fixing the sound insulation unit 5 by screws.

[0060] Furthermore, an integrally formed protrusion structure is provided on the mounting surface of the mounting unit 1, and a corresponding position of the sound insulation unit 5 is a groove. The sound insulation unit 5 is fixed to the mounting unit 1 by plugging, and there is no relative slip between the two after fixation.

[0061] Furthermore, the sound insulation device also includes an exhaust module, which is used to exhaust the pipe system when the sound insulation medium is liquid, so as to ensure that the sound insulation unit 5 is filled with liquid.

[0062] Based on the above-mentioned sound insulation device, the present application also provides a method for achieving adjustable sound insulation, the specific steps of which are as follows:

[0063] The first step is to build a sound insulation environment using sound insulation modules, installation modules and temperature control modules according to the application site. The sound insulation modules are installed on one or both sides of the installation module according to the sound insulation amount.

[0064] The second step is to select the sound insulation medium according to the required sound insulation frequency. For high-frequency sound insulation, a gas medium with a characteristic impedance less than 200N·S / m is used. 3 ; When used for medium and low frequency sound insulation, liquid medium is used, and the characteristic impedance is greater than 1.0×10 6 N·S / m 3 .

[0065] The third step is to add metal materials or salts to the liquid medium to achieve electromagnetic shielding when magnetic shielding is required according to the magnetic shielding requirements of the sound insulation environment.

[0066] The fourth step is to activate the temperature control module according to the sound insulation environment requirements, adjust the temperature of the sound insulation environment, and change the sound insulation performance of the sound insulation module through the temperature of the sound insulation medium. Specifically, when the temperature decreases, the modulus of the sound insulation module increases, the structural stiffness increases, and the low-frequency sound insulation performance controlled by stiffness can be improved; when the temperature of the sound insulation module increases, the modulus decreases, the structural stiffness decreases, and the resonant frequency decreases. When the resonant frequency is lower than the lowest excitation frequency of the sound source, the impact of resonance on the sound insulation performance can be reduced.

[0067] Example 1:

[0068] like Figure 1-6 As shown, a portable modular sound insulation device includes an installation module, a sound insulation module, and a temperature control module. The installation module is composed of multiple installation units 1 that are quickly connected together using a locking device. The installation unit 1 is a lightweight square frame of a certain thickness, and the sound insulation module is mounted on one side of the installation module. The sound insulation module is composed of multiple sound insulation units 5. The sound insulation unit 5 is a hollow rectangular structure integrally molded from a polymer material, with the same external dimensions as the installation unit 1. The sound insulation unit 5 is internally provided with reinforcing ribs 6. The sound insulation unit 5 has a medium inlet 10 and a medium outlet 11 on the side adjacent to the installation unit 1. The medium inlets 10 of the multiple sound insulation units 5 are connected to form an inlet pipe via a hose, and the medium outlets 11 of the multiple modules are connected to form an outlet pipe via a hose. The sound insulation unit 5 is connected to a medium source through the inlet pipe to fill with sound insulation medium and discharged through the outlet pipe. The sound insulation medium is a gas or liquid, and the sound insulation level can be adjusted by changing the material of the sound insulation medium. The temperature control module is connected to a circulation pump. To control the temperature of the sound insulation medium, connect the outlet pipe to the temperature control module's inlet and the inlet pipe to the module's outlet. The circulation pump is then turned on to circulate the sound insulation medium, which has been conditioned by the temperature control module, back into the module, achieving temperature control. The temperature of the sound insulation module changes with the sound insulation medium, thereby adjusting the module's sound insulation performance. The temperature control module can maintain a constant temperature at multiple points within the sound insulation medium, providing a stable temperature environment.

[0069] Conductive materials such as metals or salts can be added to the fluid sound insulation medium to achieve electromagnetic shielding.

[0070] Valves are installed at both the media inlet 10 and the media outlet 11 to control the flow of the fluid and to open and close the pipe. The inlet piping includes multiple tees and multiple sections of polymer hose that are slightly larger than the distance between the media inlets 10 of the two sound insulation units 5, allowing for quick installation of the inlet piping. The outlet piping also includes multiple tees and multiple sections of polymer hose that are slightly larger than the distance between the media outlets 11 of the two sound insulation units 5, allowing for quick installation of the outlet piping.

[0071] The selection specifications of the sound insulation medium can be calculated based on the main frequency range of actual sound insulation. When used for high-frequency sound insulation, the characteristic impedance should be less than 200N·S / m. 3 Gas mediums such as helium and hydrogen are suitable, but considering safety, helium is recommended. When used for medium and low frequency sound insulation, the characteristic impedance should be greater than 1×10 6 N·S / m 3 Liquid media, such as water, silicone oil, etc., water is recommended, which is convenient and economical.

[0072] Installation unit 1 uses a surface density not exceeding 15kg / m 2 , such as lightweight alloy materials, which are spliced ​​into structural load-bearing frames of different sizes according to actual scenarios.

[0073] The sound insulation unit 5 is made of PP, PE, etc. with a Young's modulus of not less than 1GPa and a density of not more than 1300kg / m 3 Both sides of the installation unit 1 are installation surfaces. According to different sound insulation and load-bearing requirements, the sound insulation unit 5 can be installed on one or both installation surfaces.

[0074] Example 2:

[0075] On the basis of embodiment 1, sealing strips are further attached around the sound insulation unit 5 to prevent sound leakage, and the sealing strips are made of damping material.

[0076] Example 3:

[0077] On the basis of Example 1, the edge of the sound insulation unit 5 may be a mortise and tenon structure, and adjacent sound insulation units 5 are spliced ​​together through the mortise and tenon structure to reduce sound leakage at the joints of adjacent sound insulation modules.

[0078] Example 4:

[0079] like Figure 1-2 As shown, on the basis of embodiment 1 or embodiment 2 or embodiment 3, positioning screw holes 7 are opened at corresponding positions of the mounting surface of the mounting unit 1 and the sound insulation unit 5 for fixing the sound insulation unit 5 by screws.

[0080] Example 5:

[0081] like Figure 2 、 4 As shown, based on Example 1 or Example 2 or Example 3, an integrally formed raised positioning pin structure is provided on the mounting surface of the mounting unit 1, and the corresponding position of the mounting unit 1 is a positioning hole groove. The mounting unit 1 is fixed to another mounting unit 1 in a plug-in manner through the positioning pin / hole 9 thereon, and there is no relative slippage between the two after fixation.

[0082] Example 6:

[0083] Based on Example 4 or Example 5, an exhaust valve is provided on the outlet pipe, or the outlet pipe is connected to a vacuum pump to form an exhaust module, which is used to evacuate the gas in the sound insulation module to ensure that the sound insulation module is filled with liquid. The operation steps are as follows: before starting to inject the liquid sound insulation medium, close the medium inlet valve, open the medium outlet valve, open the exhaust valve on the outlet pipe, or connect the outlet pipe to a vacuum pump, turn on the vacuum pump, and extract the air or other gas in the sound insulation module.

[0084] Example 7:

[0085] Based on the above-mentioned sound insulation device, the present application also provides a method for achieving adjustable sound insulation, the specific steps of which are as follows:

[0086] The first step is to build a sound insulation environment using sound insulation modules, installation modules and temperature control modules according to the application site.

[0087] Overall design indicators:

[0088] 1. The building structure is a rectangular room with an adjustable area of ​​6-60 square meters and a height of not less than 2 meters;

[0089] 2. After the building structure is completed, its sound insulation can be adjusted within the range of 30-45dB; and the size and shape of any part of the building cannot be changed;

[0090] 3. The load-bearing capacity per unit area of ​​the ground is ≤100kg, and the sound insulation is ≥30dB; the load-bearing capacity per unit area of ​​the ground is ≤200kg, and the sound insulation is ≥45dB.

[0091] According to the above design indicators, with the frame surface density as the design variable, under the design constraints such as shape, size, and installation method of the sound insulation module, the finite element topology optimization technology is used to optimize the lightweight and high-strength structure of the lightweight alloy frame unit. According to the design results, mold processing is carried out, and the lightweight alloy frame unit is manufactured by the die casting process.

[0092] After the processing of the lightweight alloy frame unit is completed, the spring locks are processed on the frame between adjacent units according to the drawing using a machining center, which are used to seal and lock the structural load-bearing frame. There are no less than 2 connecting locks between adjacent frames; bolt holes or plug-in plates are processed at corresponding positions on the inner and outer sides of the lightweight alloy frame unit in the thickness direction according to the drawing to fix the box-shaped sound insulation unit of the sound insulation module.

[0093] According to the actual application scenario, the lightweight alloy frame units of the structural load-bearing frame are spliced ​​into the corresponding configuration according to the diagram using spring locks to provide overall structural strength and support the entire sound insulation device.

[0094] Design and processing method of sound insulation module:

[0095] The sound insulation module is assembled from polymer box-shaped sound insulation units. The units were first tested for weighted sound insulation according to the sound insulation test method specified in GBT 19889.3-2005 Acoustics - Measurement of Sound Insulation of Buildings and Building Elements - Part 3: Laboratory Measurement of Airborne Sound Insulation of Building Elements. After achieving the design goal of an adjustable sound insulation value within the range of 30-45dB, the outer dimensions and internal structure of the box-shaped sound insulation units were determined, using the sealed box installation structure described in Examples 2 to 5. Based on the design results, a mold was fabricated, and the polymer box-shaped sound insulation units were manufactured using a compression molding process.

[0096] The second step is to select a sound insulation medium according to the required sound insulation frequency. In this embodiment, water is selected as the sound insulation medium.

[0097] The third step is to add metal materials or salts to the liquid medium to achieve electromagnetic shielding, depending on the magnetic shielding requirements of the sound insulation environment. Since magnetic shielding is not required in this embodiment, there is no need to add magnetic shielding materials to the sound insulation medium.

[0098] Step 4: Assemble and control temperature

[0099] 4.1 Assemble the processed installation structure into an integrated installation structure frame according to the drawing;

[0100] 4.2 Close the medium inlet valve, open the medium outlet valve, and fix the processed sound insulation module on the installation structure frame according to the drawing;

[0101] 4.3 Assemble the inlet and outlet pipes according to the drawings and connect them to the medium inlet and outlet at the corresponding positions respectively;

[0102] 4.4 After exhausting each sound insulation module through the outlet pipe, close the medium outlet valve;

[0103] 4.5 Open the medium inlet of each sound insulation module and inject water through the inlet pipe;

[0104] 4.6 After the sound insulation medium is injected, connect the inlet and outlet pipes to the temperature control module, open the medium outlet valve, and control the temperature of the sound insulation device through the temperature control module.

[0105] With the sound insulation device designed in this application, when the sound insulation unit is not filled with water, the load per unit area of ​​the ground is ≤100kg and the sound insulation is ≥30dB; when the sound insulation unit is filled with water, the load per unit area of ​​the ground is ≤200kg and the sound insulation is ≥45dB, thus achieving adjustable sound insulation.

[0106] Finally, it should be noted that the above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions to the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention and are intended to be encompassed by the claims of the present invention.

Claims

1. A modular sound insulation device, characterized in that: The device includes a mounting module and a sound insulation module; wherein, The installation module is formed by splicing a plurality of installation units (1); the installation unit (1) is a square frame, comprising two front and rear installation surfaces; The sound insulation module is formed by splicing together a plurality of sound insulation units (5); the sound insulation unit (5) is a rectangular hollow structure; the size of the sound insulation unit (5) is the same as that of the mounting unit (1); the sound insulation unit (5) is mounted on the mounting surface of the mounting unit (1); The sound insulation unit (5) is provided with a medium inlet (10) and a medium outlet (11) on a side adjacent to the mounting unit (1); The medium inlets (10) of the plurality of sound insulation units (5) are connected to form an inlet pipeline through a pipeline, and the medium outlets (11) of the plurality of sound insulation units (5) are connected to form an outlet pipeline through a pipeline; The device further comprises an exhaust module; the exhaust module is used to exhaust the gas in the sound insulation unit (5); The device further comprises a circulation pump; the circulation pump is connected to the inlet pipeline and is used to pump the sound insulation medium into the sound insulation module.

2. The modular sound insulation device according to claim 1, characterized in that: The device further comprises a temperature control module; the temperature control module is connected to the circulation pump and is used to control the temperature of the sound insulation medium in the sound insulation module by using the circulation pump.

3. The modular sound insulation device according to claim 1, characterized in that: The sound insulation medium is gas or liquid.

4. The modular sound insulation device according to claim 3, characterized in that: Add conductive materials to the liquid sound insulation medium.

5. The modular sound insulation device according to claim 4, characterized in that: The conductive material is metal or salt.

6. The modular sound insulation device according to claim 1, characterized in that: Sealing strips made of damping material are pasted around the sound insulation unit (5).

7. The modular sound insulation device according to claim 1, characterized in that: The edges of the sound insulation units (5) are mortise and tenon structures, and adjacent sound insulation units (5) are spliced ​​together through the mortise and tenon structures.

8. A method for adjusting the sound insulation of a modular sound insulation device, implemented based on the device according to any one of claims 1 to 7, characterized in that: The method comprises: Step 1: Use sound insulation modules and installation modules to build a sound insulation environment according to the application site. The sound insulation modules are installed on one or both sides of the installation module according to the sound insulation performance. Step 2: Select the sound insulation medium according to the required sound insulation frequency; for high-frequency sound insulation, use a gas medium with a characteristic impedance less than 200N·S / m 3 ; When used for medium and low frequency sound insulation, liquid medium is used, and the characteristic impedance is greater than 1.0×10 6 N·S / m 3 .

9. The method for adjusting the sound insulation of a modular sound insulation device according to claim 8, wherein: The method further comprises: When electromagnetic shielding is required, metal or salt is added to the liquid medium to achieve electromagnetic shielding.

10. The method for adjusting the sound insulation of a modular sound insulation device according to claim 8, wherein: The method further comprises: According to the sound insulation environment requirements, the sound insulation performance of the sound insulation module can be changed by adjusting the temperature of the sound insulation medium.

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