Low-noise clean room and application thereof

Abstract

The invention belongs to the related field of clean room noise reduction technologies, and discloses a low-noise clean room and application thereof.The low-noise clean room is characterized in that a wallboard of the low-noise clean room is jointly composed of an outer-layer wallboard body, a middle-layer wallboard body and an inner-layer wallboard body from outside to inside in sequence, and a first air channel allowing airflow to flow is formed between the outer-layer wallboard body and the middle-layer wallboard body; the first air duct is divided into a first air inlet duct and a first air outlet duct which are not communicated with each other through a partition plate; a second air duct for air flow to flow is arranged between the middle-layer wall plate and the inner-layer wall plate, and the second air duct is divided into a second air inlet duct and a second air outlet duct which are not communicated with each other. According to the air supply system, external noise can be effectively isolated, the double-layer air duct can reflect and absorb operation air noise of the air supply system for multiple times, noise in the inner cavity of the cleaning chamber is further reduced, and correspondingly, compared with the prior art, the overall noise reduction performance is improved, and the service life of the cleaning chamber is prolonged. And higher mute requirements under various complex working conditions can be met.

Description

Technical Field

[0001] The present invention belongs to the field of clean room noise reduction technology, and more specifically, relates to a low-noise clean room and application thereof. Background Art

[0002] Clean rooms are widely used in the fields of industry, medicine, biology, etc. The noise reduction devices for clean rooms in the prior art are generally composed of plates or bricks with noise reduction functions, and the plates or bricks with noise reduction functions are generally void-type sound-absorbing materials; the principle of this type of sound absorption and noise reduction is based on the porous structure of the sound-absorbing material, which reduces the sound reflection of the smooth surface, thereby achieving noise reduction.

[0003] For example, patent CN 214784913U discloses a clean room technical interlayer, including a first wall panel, the side panels of the first wall panel are sequentially provided with a first sound insulation cotton layer, a second wall panel, a second sound insulation cotton layer, and a third wall panel, the side of the first wall panel is installed with a cover plate by bolts, the side panel of the cover plate is penetrated by a first wiring tube, the side of the cover plate is installed with a rigid supporting mechanism through a first bracket, the side of the cover plate is installed with an airbag clamping mechanism through a second bracket and a fourth bracket, the side of the cover plate is installed with an elastic clamping mechanism through a third bracket, the first wall panel, the first sound insulation cotton layer, and the second wall panel are provided with first through holes that are interconnected, and the cover plate, the rigid clamping mechanism, the elastic clamping mechanism, and the airbag clamping mechanism are all located in the first through hole.

[0004] For another example, patent CN 205400147U discloses a silent modular clean operating room, including an operating room frame, wall panels, an air pump, an air duct, a high-efficiency filter, multiple disinfection devices and an air supply ceiling. The wall panels are installed in the operating room frame, and multiple disinfection cabinets are arranged on the operating room frame. The air pump includes multiple circulating air pumps and multiple air intake pumps. The disinfection device is arranged between the circulating air pump and the air intake pump. The circulating air pump is arranged in a soundproof box. A soft rubber sound insulation layer is arranged in the box body of the soundproof box. The wall panels include multiple side panels, a top panel and a bottom panel. The two side panels are sealed to the top panel by a three-way connector, and the side panel and the bottom panel are sealed to the bottom panel by an L-shaped connector. The bottom panel is installed on multiple bottom mounting parts, and gaps are provided between the multiple ground mounting parts.

[0005] However, further research shows that the above-mentioned existing solutions have limited noise reduction performance as a whole and cannot meet higher requirements for quietness. Summary of the invention

[0006] In response to one or more of the above defects or needs of the prior art, the present invention provides a low-noise clean room and its application, wherein by studying and improving its overall internal structure, especially the setting method and working mechanism of the inlet and outlet air ducts, not only can the external noise be effectively isolated, but the constructed double-layer air duct can reflect and absorb the operating wind noise of the air supply system for multiple times, further reducing the noise in the inner cavity of the clean room. Compared with the prior art, the overall noise reduction performance is improved accordingly, and the higher quietness requirements under various complex working conditions can be met.

[0007] To achieve the above object, according to one aspect of the present invention, a low-noise clean room is provided, characterized in that the wall panels of the clean room are composed of an outer wall panel, an intermediate wall panel and an inner wall panel from the outside to the inside, wherein:

[0008] A first air duct for air flow is arranged between the outer wall panel and the middle wall panel, and the first air duct is divided into a first air inlet duct and a first air outlet duct which are not connected to each other by a partition; an outer air inlet and an outer air outlet are respectively processed on the outer wall panel, and a middle air inlet and a middle air outlet are respectively processed on the middle wall panel;

[0009] A second air duct for air flow is provided between the middle wall panel and the inner wall panel, and the second air duct is also divided into a second air inlet duct and a second air outlet duct which are not connected to each other by the partition plate; the inner wall panel is respectively processed with an inner air inlet and an inner air outlet;

[0010] When air is being supplied, air enters the first air inlet duct through the outer air inlet, flows through the entire first air inlet duct and then enters the second air inlet duct through the middle air inlet, and then flows through the entire second air inlet duct and then enters the clean room through the inner air inlet;

[0011] When the air is discharged, the incoming air inside the clean room is converted into outgoing air through the inner layer air outlet and enters the second air outlet duct, flows through the entire second air outlet duct and then enters the first air outlet duct through the middle layer air outlet, and then flows through the entire first air outlet duct and is discharged through the outer layer air outlet.

[0012] As a further preferred embodiment of the present invention, a filter layer is further arranged inside the inner wall panel, and the filter layer divides the interior of the clean room into an upper static pressure cavity and a lower inner cavity.

[0013] As a further preferred embodiment of the present invention, the outer wall panel is preferably made of color steel plate, and sound insulation filling material is arranged inside the outer wall panel.

[0014] As a further preferred embodiment of the present invention, the middle layer wall panels and the inner layer wall panels are respectively made of porous color steel plates, and sound absorbing materials are arranged inside them.

[0015] As a further preferred embodiment of the present invention, the outer wall panels, the middle wall panels and the inner wall panels are used together to isolate external noise.

[0016] As a further preferred embodiment of the present invention, the first air duct and the second air duct together reflect and absorb the airflow passing therethrough multiple times, thereby further reducing the noise inside the clean room.

[0017] As a further preference of the present invention, the outer layer air inlet and the outer layer air outlet are preferably arranged at the bottom of a side panel of the outer layer wall panel, the middle layer air inlet and the middle layer air outlet are preferably arranged on the bottom of the side panel opposite to the middle layer wall panel, and the first air duct extends through the top of the entire clean room wall panel to extend the path of the air duct.

[0018] As a further preferred embodiment of the present invention, the inner air inlet is preferably arranged at the top plate of the inner wall panel, the inner air outlet is preferably arranged at the bottom of a side plate of the inner wall panel, and the second air duct extends through the top of the entire clean room wall panel to extend the path of the air duct.

[0019] According to another aspect of the present invention, there is also provided application of the above-mentioned low-noise clean room in the field of industrial, biological or medical clean rooms.

[0020] In general, the above technical solution conceived by the present invention has the following technical advantages compared with the prior art:

[0021] (1) The present invention fully combines the use characteristics and requirements of various clean rooms, and redesigns the entire internal structure and its setting method, thereby obtaining a low-noise clean room with a multi-layer wall panel structure and a double-layer air duct, while having the advantages of compact structure, easy processing and use;

[0022] (2) The present invention makes further targeted improvements to the specific arrangement and working mechanism of the inlet and outlet air ducts, which can not only effectively isolate external noise, but also the double-layer air duct can reflect and absorb the wind noise of the air supply system multiple times, further reducing the noise in the clean room cavity;

[0023] (3) Compared with existing similar products, the clean room of the present invention has improved overall noise reduction performance, can meet higher noise reduction requirements under various complex working conditions, has good adaptability, and thus has good practical value and application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1It is a schematic diagram of the structure of the outer wall panel provided in the embodiment of the present application;

[0025] Figure 2 It is a schematic diagram of the structure of the middle layer wallboard provided in the embodiment of the present application;

[0026] Figure 3 It is a schematic diagram of the structure of the inner wall panel provided in the embodiment of the present application;

[0027] Figure 4 is a schematic diagram for exemplarily showing the entire air inlet path according to the present invention;

[0028] Figure 5 is a schematic diagram for exemplarily showing the entire air outlet path according to the present invention;

[0029] Figure 6 It is a schematic diagram of the structure of the outer wall panel provided in the embodiment of the present application;

[0030] Figure 7 It is a schematic diagram of the structure of the middle wall panel and the inner wall panel provided in the embodiment of the present application;

[0031] Throughout the drawings, the same reference numerals are used to denote the same elements or structures, wherein:

[0032] 1. Outer wall panel; 2. Middle wall panel; 3. Inner wall panel; 1-1. Outer air inlet; 1-2. Outer air outlet; 2-1. First air inlet duct; 2-2. First air outlet duct; 2-3. Middle air outlet; 2-4. Middle air inlet; 3-1. Inner air inlet; 3-2. Second air inlet duct; 3-3. Second air outlet duct; 3-4. Upper static pressure cavity; 3-5. Filter layer; 3-6. Lower inner cavity; 3-7. Inner air outlet; 101. Color steel plate; 102. Sound insulation filling material; 201. Porous color steel plate; 202. Sound-absorbing material. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0034] It should be understood that expressions such as "include" and "may include" used in this application indicate the existence of the disclosed functions, operations or constituent elements, and do not limit one or more additional functions, operations and constituent elements. In this application, terms such as "include" and / or "have" may be interpreted as indicating specific characteristics, numbers, operations, constituent elements, components or combinations thereof, but may not be interpreted as excluding the existence or possibility of adding one or more other characteristics, numbers, operations, constituent elements, components or combinations thereof.

[0035] It should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0037] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0038] Reference Figure 1-3 The wall panels of the clean room in the present invention are composed of an outer wall panel 1, a middle wall panel 2 and an inner wall panel 3 from the outside to the inside, and double-layer air ducts are formed inside them, which will be explained in more detail below with reference to the accompanying drawings.

[0039] See also Figure 1 and Figure 2A first air duct for air flow is arranged between the outer wall panel 1 and the middle wall panel 2, and the first air duct is divided into a first air inlet duct 2-1 and a first air outlet duct 2-2 which are not connected to each other by a partition; the outer wall panel 1 is respectively processed with an outer air inlet 1-1 and an outer air outlet 1-2, and the middle wall panel 2 is respectively processed with a middle air inlet 2-4 and a middle air outlet 2-3.

[0040] More specifically, according to a preferred embodiment of the present invention, the outer layer air inlet 1-1 and the outer layer air outlet 1-2 are preferably arranged at the bottom of a side panel of the outer layer wall panel 1, the middle layer air inlet 2-4 and the middle layer air outlet 2-3 are preferably arranged on the bottom of the side panel opposite to the middle layer wall panel 2, and the first air duct extends through the top of the entire clean room wall panel to extend the path of the air duct.

[0041] See also Figure 2 and Figure 3 A second air duct for air flow is arranged between the middle wall panel 2 and the inner wall panel 3, and the second air duct is also divided into a second air inlet duct 3-2 and a second air outlet duct 3-3 which are not connected to each other by the partition; the inner wall panel 3 is respectively processed with an inner air inlet 3-1 and an inner air outlet 3-7.

[0042] More specifically, according to a preferred embodiment of the present invention, the inner layer air inlet 3-1 is preferably arranged at the top plate of the inner layer wall panel 3, the inner layer air outlet 3-7 is preferably arranged at the bottom of a side panel of the inner layer wall panel 3, and the second air duct extends through the top of the entire clean room wall panel to extend the path of the air duct.

[0043] Through the above concept, when the air intake is executed, Figure 4 As shown, air enters the first air inlet duct 2-1 through the outer air inlet 1-1, flows through the entire first air inlet duct 2-1 and then enters the second air inlet duct 3-2 through the middle air inlet 2-4, then flows through the entire second air inlet duct 3-2 and then enters the clean room through the inner air inlet 3-1;

[0044] When executing the wind output, Figure 5 As shown, the incoming air inside the clean room is converted into outgoing air through the inner layer air outlet 3-7 and enters the second air outlet duct 3-3, flows through the entire second air outlet duct 3-3 and then enters the first air outlet duct 2-2 through the middle layer air outlet 2-3, and then flows through the entire first air outlet duct 2-2 and is discharged through the outer layer air outlet 1-2.

[0045] According to another preferred embodiment of the present invention, a filter layer 3-5 is further provided inside the inner wall panel 3, and the filter layer 3-5 divides the interior of the clean room into an upper static pressure chamber 3-4 and a lower inner chamber 3-6.

[0046] More specifically, if Figure 6 As shown, the outer wall panel 1 is preferably made of a color steel plate 101, and a sound insulation filling material 102 is arranged inside the outer wall panel 1. Figure 7 As shown, the middle layer wall panel 2 and the inner layer wall panel 3 are respectively made of porous color steel plates 201, and sound absorbing materials 202 are arranged inside them.

[0047] The working process and mechanism of action of the present invention will be explained in more detail below.

[0048] There are two main sources of noise in the clean room, one is the noise generated by the external equipment of the clean room, and the other is the wind noise generated by the fan when the air supply system is running. The low-noise clean room according to the present invention not only optimizes the structure of the air inlet and return air ducts, but also further reduces the noise. On the one hand, the outer wall panel 1 composed of the color steel plate 101 and the sound insulation filling material 102 isolates the external noise; on the other hand, the double-layer air duct formed by the first air inlet duct 2-1, the second air inlet duct 3-2 and the first air outlet duct 2-2, the second air outlet duct 3-3 reflects and absorbs the wind noise many times, further reducing the noise in the inner cavity of the clean room.

[0049] In summary, the low-noise clean room according to the present invention can not only effectively isolate external noise, but the constructed double-layer air duct can reflect and absorb the operating wind noise of the air supply system multiple times, further reducing the noise in the inner cavity of the clean room. Compared with the prior art, the overall noise reduction performance is improved accordingly, and the higher quietness requirements under various complex working conditions can be met, and thus it has good practical value and application prospects.

[0050] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A low-noise clean room, characterized in that: The wall panels of the clean room are composed of an outer wall panel (1), an intermediate wall panel (2) and an inner wall panel (3) from the outside to the inside, wherein: A first air duct for air flow is provided between the outer wall panel (1) and the middle wall panel (2), and the first air duct is divided into a first air inlet duct (2-1) and a first air outlet duct (2-2) which are not connected to each other by a partition plate; the outer wall panel (1) is respectively processed with an outer air inlet (1-1) and an outer air outlet (1-2), and the middle wall panel (2) is respectively processed with a middle air inlet (2-4) and a middle air outlet (2-3); A second air duct for air flow is provided between the middle wall panel (2) and the inner wall panel (3), and the second air duct is also divided into a second air inlet duct (3-2) and a second air outlet duct (3-3) which are not connected to each other by the partition plate; the inner wall panel (3) is respectively processed with an inner air inlet (3-1) and an inner air outlet (3-7); When air intake is performed, air enters the first air inlet duct (2-1) through the outer air inlet (1-1), flows through the entire first air inlet duct (2-1), and then enters the second air inlet duct (3-2) through the middle air inlet (2-4), and then flows through the entire second air inlet duct (3-2) and then enters the clean room through the inner air inlet (3-1); When the air is discharged, the incoming air in the clean room is converted into outgoing air through the inner layer air outlet (3-7) and enters the second air outlet duct (3-3), flows through the entire second air outlet duct (3-3), and then enters the first air outlet duct (2-2) through the middle layer air outlet (2-3), and then flows through the entire first air outlet duct (2-2) and is discharged through the outer layer air outlet (1-2).

2. A low-noise clean room as claimed in claim 1, characterized in that: A filter layer (3-5) is also arranged inside the inner wall panel (3), and the filter layer (3-5) divides the interior of the clean room into an upper static pressure chamber (3-4) and a lower inner chamber (3-6).

3. A low-noise clean room as claimed in claim 1 or 2, characterized in that: The outer wall panel (1) is preferably made of a color steel plate (101), and a sound insulation filling material (102) is arranged inside the outer wall panel.

4. A low-noise clean room according to any one of claims 1 to 3, characterized in that: The intermediate wallboard (2) and the inner wallboard (3) are respectively made of porous color steel plates (201), and sound absorbing materials (202) are arranged inside them.

5. A low-noise clean room according to any one of claims 1 to 4, characterized in that: The outer wallboard (1), the middle wallboard (2) and the inner wallboard (3) are used together to isolate external noise.

6. A low-noise clean room according to any one of claims 1 to 5, characterized in that: The first air duct and the second air duct together reflect and absorb the airflow passing through them multiple times, thereby further reducing the noise inside the clean room.

7. A low-noise clean room according to any one of claims 1 to 6, characterized in that: The outer layer air inlet (1-1) and the outer layer air outlet (1-2) are preferably arranged at the bottom of a side panel of the outer layer wall panel (1), and the middle layer air inlet (2-4) and the middle layer air outlet (2-3) are preferably arranged at the bottom of the side panel opposite to the middle layer wall panel (2), and the first air duct extends through the top of the entire clean room wall panel to extend the path of the air duct.

8. A low-noise clean room as claimed in claim 7, characterized in that: The inner layer air inlet (3-1) is preferably arranged at the top plate of the inner layer wall panel (3), and the inner layer air outlet (3-7) is preferably arranged at the bottom of a side plate of the inner layer wall panel (3), and the second air duct extends through the top of the entire clean room wall panel to extend the path of the air duct.

9. Application of the low-noise clean room according to any one of claims 1 to 8 in the field of industrial, biological or medical clean rooms.

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