Dust-free warehouse of transformer substation

Abstract

The application provides a dust-free cabin of a transformer substation, which comprises: an inflatable frame structure having an inflatable channel; a protective layer covered on the inflatable frame structure, a first side wall of the protective layer being provided with an entrance and exit; a door curtain structure arranged at the entrance and exit; a transparent part arranged on a second side wall of the protective layer; a plurality of air vents arranged at intervals on the side wall of the protective layer; an inflatable part in communication with the inflatable channel of the inflatable frame structure; and a plurality of necking structures arranged in one-to-one correspondence with the plurality of air vents, the opening size of the necking structure being adjustably arranged, the necking structure comprising a ring-shaped flexible piece and a pull rope, the outer ring of the ring-shaped flexible piece being connected with the edge of the air vent, the pull rope being connected with the inner ring of the ring-shaped flexible piece, and the pull rope being capable of driving the inner ring of the ring-shaped flexible piece to reduce in diameter. The technical scheme of the application effectively solves the problem of fixed size of the ventilation hole of the dust-free cabin in the related art.

Description

Technical Field

[0001] This invention relates to the field of power technology, and more specifically, to a dust-free chamber for substations. Background Technology

[0002] In substations and other industrial settings, the cleanliness and airtightness of the maintenance and operating environment have a significant impact on the safe operation and lifespan of equipment. Substation operating environments are typically characterized by high levels of dust, particulate matter, and humidity. If these impurities enter critical equipment areas, they can lead to decreased insulation performance, poor contact, and even short circuits or fires. Furthermore, in equipment requiring high air cleanliness, the intrusion of dust and moisture can shorten equipment lifespan and increase maintenance difficulty and costs. Traditional substation dust control equipment often employs fixed structures such as sealed doors and filters, but these designs are insufficient for frequent access and rapid equipment replacement, exhibiting limitations in sealing effectiveness and flexibility.

[0003] To address these issues, cleanrooms or clean environments have been increasingly used in recent years to provide isolation, dust prevention, and airflow control. However, existing cleanroom designs are mostly suited for fixed locations, with complex installation and dismantling processes and relatively simple spatial structures, making it difficult to flexibly adapt to the specific needs of industrial environments such as substations. Furthermore, existing cleanrooms typically cannot provide convenient ventilation control and easy access while maintaining efficient sealing in practical use, and the size of the ventilation openings is fixed and cannot be adjusted. Summary of the Invention

[0004] The main objective of this invention is to provide a cleanroom for substations to solve the problem of fixed ventilation hole size in cleanrooms in related technologies.

[0005] To achieve the above objectives, the present invention provides a cleanroom for substations, comprising: an inflatable frame structure having an inflation channel; a protective layer covering the inflatable frame structure, wherein an inlet and outlet are provided on the first side wall of the protective layer; a curtain structure disposed at the inlet and outlet; a transparent portion disposed on the second side wall of the protective layer; a plurality of vent holes disposed at intervals on the side wall of the protective layer; an inflation portion communicating with the inflation channel of the inflatable frame structure; and a plurality of constriction structures disposed corresponding to the plurality of vent holes, wherein the opening size of the constriction structures is adjustable, the constriction structure comprising an annular flexible member and a pull rope, wherein the outer ring of the annular flexible member is connected to the edge of the vent hole, and the pull rope is connected to the inner ring of the annular flexible member, wherein the pull rope can drive the diameter of the inner ring of the annular flexible member to decrease.

[0006] Furthermore, the cleanroom of the substation also includes a sealing plug, and the inflation part includes an inflation pipe, a flexible sealing ring, a fixing frame, and multiple first elastic elements. The first end of the inflation pipe is connected to the inflation frame structure, the flexible sealing element is connected to the second end of the inflation pipe, the fixing frame is connected to the inflation pipe or the inflation frame structure, and the multiple first elastic elements are spaced apart along the circumference of the flexible sealing ring. The first elastic elements are located between the fixing frame and the flexible sealing ring, and the first elastic elements can apply elastic force to the flexible sealing ring so that the sealing plug and the flexible sealing ring abut against each other when the sealing plug is inserted into the flexible sealing ring.

[0007] Furthermore, the fixing frame is provided with a clearance recess, and the first elastic element is located in the clearance recess.

[0008] Furthermore, the inflation part also includes a positioning ring, which is sleeved on the outer periphery of the flexible sealing ring. The positioning ring has multiple notches spaced apart, and the multiple notches are provided one-to-one with multiple first elastic elements.

[0009] Furthermore, the inflation part also includes multiple limiting plates, with at least two limiting plates provided on the outer periphery of each notch, and the limiting plates are matched with the first elastic element for limiting.

[0010] Furthermore, the inflation part also includes multiple connecting plates, which are arranged one-to-one with multiple first elastic members. The connecting plates are located inside the relief recess and abut against the first elastic members.

[0011] Furthermore, the inflation section also includes a connecting ring, which is connected to the fixing frame and located on the side of the fixing frame away from the inflation frame structure. The substation cleanroom also includes a first limiting structure, which is located between the connecting ring and the sealing plug.

[0012] Furthermore, the first limiting structure includes a limiting hole and a limiting protrusion, the limiting protrusion being able to be inserted into the limiting hole, one of the limiting hole and the limiting protrusion being disposed on the connecting ring, and the other of the limiting hole and the limiting protrusion being disposed on the sealing plug.

[0013] Furthermore, the cleanroom of the substation also includes a second limiting structure, which includes an elastic fixing tube that is sleeved on the outer periphery of the connecting ring and connected to the inflatable frame structure.

[0014] Furthermore, the second limiting structure also includes a first annular member, a second annular member, and a second elastic member. The second elastic member is connected between the first annular member and the second annular member. The first annular member is fixedly connected to the elastic fixing tube and / or the inflatable frame structure. The second annular member is movably disposed. The second elastic member has an initial position and a compressed position. When the second elastic member is in the initial position, the second annular member is located outside the first limiting structure. When the second elastic member is in the compressed position, the second annular member is located between the first limiting structure and the inflatable frame structure.

[0015] According to the technical solution of this invention, the inflatable frame structure has an inflation channel, a protective layer is placed over the inflatable frame structure, and an inlet / outlet is provided on the first side wall of the protective layer. A curtain structure is located at the inlet / outlet. A transparent part is located on the second side wall of the protective layer. Multiple vent holes are spaced apart on the side wall of the protective layer. The inflation part communicates with the inflation channel of the inflatable frame structure. Multiple constriction structures are arranged one-to-one with multiple vent holes. The constriction structure includes an annular flexible member and a pull rope. The outer ring of the annular flexible member is connected to the edge of the vent hole, and the inner ring of the annular flexible member is connected to the pull rope. The pull rope can drive the diameter of the inner ring of the annular flexible member to decrease. Through the above arrangement, the inflatable frame structure can be inflated through the inflation part, thereby making the inflatable frame structure stronger, and the protective layer can block dust, thus achieving the protective function. The curtain structure facilitates the operator's entry and exit or reaching inside to operate, and the transparent part facilitates the operator's observation from the outside. The constriction structure can adjust the size of the vent holes, thereby changing the ventilation area. Specifically, when the rope is pulled, it can pull the inner ring of the annular flexible component, causing it to deform and thus changing the ventilation area. Therefore, the technical solution of this application effectively solves the problem of fixing the ventilation hole size of cleanrooms in related technologies. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0017] Figure 1 A three-dimensional structural schematic diagram of an embodiment of a substation cleanroom according to the present invention is shown;

[0018] Figure 2 It shows Figure 1 A three-dimensional structural diagram of a cleanroom in a substation from another perspective;

[0019] Figure 3 It shows Figure 1 A schematic diagram of the constricted structure of the cleanroom in a substation;

[0020] Figure 4 It shows Figure 1 A partial structural diagram of a cleanroom in a substation;

[0021] Figure 5 It shows Figure 4 A partial structural diagram of the inflatable part;

[0022] Figure 6 It shows Figure 5 A schematic diagram of the exploded structure of the inflatable part.

[0023] The above figures include the following reference numerals:

[0024] 10. Inflatable frame structure; 20. Protective layer; 30. Curtain structure; 40. Transparent part; 50. Ventilation hole; 60. Inflatable part; 61. Inflatable tube; 62. Flexible sealing ring; 63. Fixing frame; 631. Avoidance recess; 64. First elastic element; 65. Positioning ring; 651. Notch; 66. Limiting plate; 67. Connecting plate; 68. Connecting ring; 70. Narrowing structure; 71. Annular flexible element; 72. Pull cord; 80. Sealing plug; 91. First limiting structure; 911. Limiting hole; 912. Limiting protrusion; 92. Second limiting structure; 921. Elastic fixing tube; 922. First annular element; 923. Second annular element; 924. Second elastic element. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0027] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0028] like Figures 1 to 3 As shown, in this embodiment, the cleanroom of the substation includes: an inflatable frame structure 10, a protective layer 20, a curtain structure 30, a transparent portion 40, multiple ventilation holes 50, an inflatable portion 60, and multiple constriction structures 70. The inflatable frame structure 10 has an inflation channel. The protective layer 20 covers the inflatable frame structure 10, and an inlet and outlet are provided on the first side wall of the protective layer 20. The curtain structure 30 is provided at the inlet and outlet. The transparent portion 40 is provided on the second side wall of the protective layer 20. Multiple ventilation holes 50 are spaced apart on the side wall of the protective layer 20. The inflatable portion 60 communicates with the inflation channel of the inflatable frame structure 10. Multiple constriction structures 70 are arranged one-to-one with multiple ventilation holes 50. The opening size of the constriction structure 70 is adjustable. The constriction structure 70 includes an annular flexible member 71 and a pull rope 72. The outer ring of the annular flexible member 71 is connected to the edge of the ventilation hole 50, and the pull rope 72 is connected to the inner ring of the annular flexible member 71. The pull rope 72 can drive the diameter of the inner ring of the annular flexible member 71 to decrease.

[0029] Using the technical solution of this embodiment, the inflatable frame structure 10 has an inflation channel, and a protective layer 20 is provided on the inflatable frame structure 10. An inlet and outlet are provided on the first side wall of the protective layer 20. A curtain structure 30 is provided at the inlet and outlet. A transparent part 40 is provided on the second side wall of the protective layer 20. Multiple ventilation holes 50 are spaced apart on the side wall of the protective layer 20. The inflation part 60 communicates with the inflation channel of the inflatable frame structure 10. Multiple constriction structures 70 are provided corresponding to multiple ventilation holes 50. The constriction structure 70 includes an annular flexible member 71 and a pull rope 72. The outer ring of the annular flexible member 71 is connected to the edge of the ventilation hole 50, and the inner ring of the annular flexible member 71 is connected to the pull rope 72. The pull rope 72 can drive the diameter of the inner ring of the annular flexible member 71 to decrease. Through the above arrangement, the inflatable frame structure 10 can be inflated through the inflation part 60, thereby improving the strength of the inflatable frame structure 10 and enabling the protective layer 20 to block dust, thus achieving the protective function. The curtain structure 30 facilitates operator access or entry, and the transparent section 40 allows for external observation. The constriction structure 70 allows adjustment of the size of the ventilation holes 50, thereby changing the ventilation area. Specifically, pulling the cord 72 pulls the inner ring of the annular flexible member 71, causing it to deform and thus changing the ventilation area. Therefore, the technical solution of this embodiment effectively solves the problem of fixed ventilation hole size in cleanrooms in related technologies.

[0030] This design effectively prevents external dust and impurities from entering the substation's cleanroom, providing a clean working environment for the equipment and thus improving its operational efficiency and safety. Especially under high dust, high humidity, or extreme weather conditions, it effectively protects equipment from environmental factors, ensuring the stable operation of the power system and reducing equipment failures and maintenance costs caused by environmental factors.

[0031] like Figures 1 to 4 As shown, in this embodiment, the inflatable frame structure 10 serves as a support frame, employing an inflation method to achieve rapid molding and provide sufficient stability. During installation, gas is injected into the inflatable frame structure 10 through the inflation tube 61. The inflatable frame structure 10 gradually expands under the action of the gas until it reaches the set shape and hardness. To ensure that the inflatable frame structure 10 is not easily deformed under external forces, the outer wall of the inflatable frame structure 10 is covered with a high-strength protective layer 20. The protective layer 20 is fixedly connected to the inflatable frame structure 10 by Velcro, facilitating quick assembly and disassembly, and maintaining stability under external forces.

[0032] Specifically, the protective layer 20 is a PVC-coated mesh fabric.

[0033] To ensure both visibility and airtightness within the cleanroom, transparent sections 40 are provided on both sides of the protective layer 20, with adjacent curtain structures 30. The transparent sections 40 and curtain structures 30 are tightly fitted together to form a closed structure. The transparent sections 40 possess excellent transparency, environmental friendliness, and wear resistance, effectively preventing external dust or particles from entering the cleanroom while ensuring that operators can observe the internal conditions from the outside, facilitating monitoring of equipment operation. The curtain structure 30 is made of flexible material, facilitating personnel access while ensuring a good fit against the transparent sections 40 when closed, preventing dust intrusion at the seams.

[0034] Specifically, the transparent part 40 is a TPU environmentally friendly transparent film.

[0035] like Figures 1 to 4 As shown, in this embodiment, ventilation holes 50 are provided on the protective layer 20, the curtain structure 30, and the transparent part 40 to provide airflow within the workshop. These ventilation holes 50 are connected to the outside via Velcro. The Velcro has a constriction structure 70 inside, which is fixedly connected to the inner wall of the ventilation hole 50 and contains a pull cord 72. Workers can manually control the opening and closing of the constriction structure 70 by pulling the pull cord 72 to adjust the airflow within the workshop according to different working environment requirements. This adjustable ventilation design not only achieves effective control of airflow within the workshop but also facilitates the maintenance of the workshop's stability and cleanliness under different temperature and humidity conditions.

[0036] To ensure the airtightness of the entrances and exits of the cleanroom during use, multiple magnetic components are installed on the inner wall of the curtain structure 30, and corresponding magnetic suction components are installed on the inner wall of adjacent locations within the curtain structure 30. During use, when personnel enter or exit the cleanroom, the magnetic components and magnetic suction components attract each other magnetically, causing the curtain structure 30 to close automatically, preventing interference with airflow within the cleanroom and thus preventing dust from entering. This magnetic suction structure design not only improves the sealing effect of the cleanroom but also eliminates the need for additional mechanical operations, making the closing process of the curtain structure 30 more convenient.

[0037] like Figures 4 to 6As shown, in this embodiment, the cleanroom of the substation also includes a sealing plug 80, and the inflation part 60 includes an inflation pipe 61, a flexible sealing ring 62, a fixing frame 63, and a plurality of first elastic elements 64. The first end of the inflation pipe 61 is connected to the inflation frame structure 10, the flexible sealing element is connected to the second end of the inflation pipe 61, the fixing frame 63 is connected to the inflation pipe 61 or the inflation frame structure 10, and the plurality of first elastic elements 64 are spaced apart circumferentially along the flexible sealing ring 62. The first elastic elements 64 are disposed between the fixing frame 63 and the flexible sealing ring 62, and the first elastic elements 64 can apply elastic force to the flexible sealing ring 62 so that when the sealing plug 80 is inserted into the flexible sealing ring 62, the sealing plug 80 and the flexible sealing ring 62 abut and cooperate. This sealing design ensures the airtightness of the inflation frame structure 10, prevents the inflation frame structure 10 from leaking, and further improves the protection effect. During substation equipment inspection, replacement, or routine maintenance, this design can effectively reduce the failure rate of equipment caused by external environmental factors and extend the service life of the equipment.

[0038] Specifically, when the sealing plug 80 is inserted into the flexible sealing ring 62, the first elastic member 64 can compress the flexible sealing ring 62, thereby making the flexible sealing ring 62 and the sealing plug 80 abut and cooperate, thus ensuring the sealing effect.

[0039] like Figures 4 to 6 As shown, in this embodiment, the fixing frame 63 is provided with a relief recess 631, and the first elastic member 64 is located in the relief recess 631. The design of the relief recess 631 allows the first elastic member 64 to be hidden, avoiding direct exposure of the first elastic member 64 to the external environment, reducing the possibility of aging or damage of the first elastic member 64 due to environmental factors (such as temperature and humidity), thereby ensuring a long-term stable sealing effect between the sealing plug 80 and the flexible sealing ring 62.

[0040] like Figures 4 to 6 As shown, in this embodiment, the inflation part 60 further includes a positioning ring 65, which is sleeved on the outer periphery of the flexible sealing ring 62. The positioning ring 65 has multiple notches 651 spaced apart, each notch corresponding to a plurality of first elastic members 64. The combined use of the positioning ring 65 and the notches 651 not only ensures the stable positioning of the flexible sealing ring 62 on the inflation tube 61, but also provides sufficient space for the first elastic members 64 to fully extend and retract during operation, ensuring the sealing effect when the sealing plug 80 is inserted.

[0041] like Figures 4 to 6As shown, in this embodiment, the inflation section 60 further includes multiple limiting plates 66. At least two limiting plates 66 are provided on the outer periphery of each notch 651, and the limiting plates 66 engage with the first elastic member 64. The limiting plates 66 effectively prevent the first elastic member 64 from shifting or falling off during operation, ensuring the stability and reliability of the first elastic member 64, thereby guaranteeing the sealing performance of the inflation section 60. During the operation of substation equipment, this design effectively avoids equipment failure due to seal failure, improving the overall stability and safety of the system. Especially when the equipment needs to operate continuously for a long time, this design significantly improves the durability of the inflation section, reduces equipment downtime due to component damage, and ensures the continuity of power supply.

[0042] like Figures 4 to 6 As shown, in this embodiment, the inflation part 60 further includes multiple connecting plates 67, which are arranged one-to-one with multiple first elastic members 64. The connecting plates 67 are located inside the relief recess 631 and abut against the first elastic members 64. The use of connecting plates 67 not only ensures a firm connection between the first elastic members 64 and the fixing frame 63, but also provides additional support for the first elastic members 64, making them more stable during operation and improving the sealing effect between the sealing plug 80 and the flexible sealing ring 62.

[0043] like Figures 4 to 6 As shown, in this embodiment, the inflation unit 60 further includes a connecting ring 68, which is connected to the fixing frame 63 and located on the side of the fixing frame 63 away from the inflation frame structure 10. The substation cleanroom also includes a first limiting structure 91, which is located between the connecting ring 68 and the sealing plug 80. The design of the first limiting structure 91 can effectively prevent the sealing plug 80 from coming off due to excessive pressure during inflation, ensuring the safety and reliability of the inflation process.

[0044] The above design can effectively avoid equipment failure caused by the sealing plug 80 coming off, improve the overall stability and safety of the system, and by precisely adjusting the position of the first limit structure 91, it can adapt to the inflation pressure requirements of different equipment, ensuring the stability and reliability of the cleanroom under various operating conditions.

[0045] like Figures 4 to 6As shown, in this embodiment, the first limiting structure 91 includes a limiting hole 911 and a limiting protrusion 912. The limiting protrusion 912 can be inserted into the limiting hole 911. One of the limiting hole 911 and the limiting protrusion 912 is provided on the connecting ring 68, and the other of the limiting hole 911 and the limiting protrusion 912 is provided on the sealing plug 80. The cooperative use of the limiting hole 911 and the limiting protrusion 912 not only ensures a stable connection between the sealing plug 80 and the connecting ring 68, but also provides an additional sealing effect to prevent gas leakage.

[0046] like Figures 4 to 6 As shown, in this embodiment, the cleanroom of the substation further includes a second limiting structure 92, which includes an elastic fixing tube 921. The elastic fixing tube 921 is sleeved on the outer periphery of the connecting ring 68 and connected to the inflatable frame structure 10. The design of the elastic fixing tube 921 provides additional support and fixation for the connecting ring 68, preventing the connecting ring 68 from shifting or deforming during inflation, thereby ensuring the stability and reliability of the inflation part 60. Furthermore, the aforementioned elastic fixing tube 921 can limit the first limiting structure 91, thereby preventing the limiting hole 911 and the limiting protrusion 912 from easily separating.

[0047] like Figures 4 to 6 As shown, in this embodiment, the second limiting structure 92 further includes a first annular member 922, a second annular member 923, and a second elastic member 924. The second elastic member 924 is connected between the first annular member 922 and the second annular member 923. The first annular member 922 is fixedly connected to the elastic fixing tube 921 and / or the inflatable frame structure 10. The second annular member 923 is movably disposed. The second elastic member 924 has an initial position and a compressed position. When the second elastic member 924 is in the initial position, the second annular member 923 is located outside the first limiting structure 91. When the second elastic member 924 is in the compressed position, the second annular member 923 is located between the first limiting structure 91 and the inflatable frame structure 10. This design, through the extension and retraction of the second elastic member 924, can adjust the position of the second annular member 923, thereby achieving dynamic limiting of the connecting ring 68 and ensuring the stability and reliability of the inflatable part 60 under different inflation pressures.

[0048] Specifically, the second annular member 923 can reduce the elastic deformation of the elastic fixing tube 921, thereby achieving limited fixation of the first limiting structure 91 and preventing the limiting hole 911 and the limiting protrusion 912 from separating. When the second annular member 923 avoids the first limiting structure 91, the elastic fixing tube 921 has a certain deformation space, which makes it easier for the limiting hole 911 and the limiting protrusion 912 to separate.

[0049] like Figures 4 to 6As shown, in this embodiment, the sealing plug 80 is used to seal the gas inside the inflatable frame structure 10. The sealing plug 80 is connected to the inflatable frame structure 10 through the inflation tube 61 to achieve gas injection and sealing. After inflation, the sealing plug 80 is firmly inserted into the inflation tube opening of the inflatable frame structure 10 to prevent gas leakage. At the same time, a fixing bracket 63 is fixedly connected to one end of the inflation tube 61. Multiple connecting plates 67 are installed inside the fixing bracket 63 to ensure the stability and firmness of the sealing structure.

[0050] To improve the sealing effect, the connecting plate 67 inside the fixing frame 63 further ensures the contact density between the flexible sealing ring 62 and the inflatable frame structure 10 through the limiting plate 66 and the first elastic element 64. The limiting plate 66 is connected to the inner wall of the connecting plate 67, and multiple first elastic elements 64 are installed between the limiting plate 66 and the connecting plate 67. When the flexible sealing ring 62 expands under the action of the sealing plug 80, the limiting plate 66 slides in the direction of movement of the flexible sealing ring 62, generating pressure. This pressure acts on the first elastic elements 64, causing them to compress, thus preventing the flexible sealing ring 62 from deforming or displacing due to excessive compression during the sealing process. This design maintains the contact state between the flexible sealing ring 62 and the sealing plug 80 through the cooperation of the limiting plate 66 and the first elastic elements 64, ensuring the stability of the sealing effect.

[0051] like Figures 4 to 6 As shown, in this embodiment, the flexible sealing ring 62 is supported internally by a sealing plug 80 and connected to the sealing plug 80 via one end of a connecting ring 68. With continuous pressure from the sealing plug 80 on the flexible sealing ring 62, the flexible sealing ring 62 expands, and under the action of the connecting ring 68, the pressure is evenly distributed on the surface of the limiting plate 66. This structural design ensures that the flexible sealing ring 62 will not leak when the inflatable frame structure 10 is filled with gas, thereby achieving complete sealing of the gas inside the inflatable frame structure 10.

[0052] like Figures 4 to 6 As shown, in this embodiment, the connecting ring 68 and the elastic fixing tube 921 are slidably connected to each other. The connecting ring 68 has multiple limiting holes 911 inside, and multiple limiting protrusions 912 are slidably connected within the limiting holes 911 for precise positioning of the connecting ring 68. The limiting protrusions 912 are located on the inner wall of the limiting holes 911, providing support and positioning for the connecting ring 68, preventing it from shifting or loosening. This structure ensures the stability of the connecting ring 68 under sealed or pressurized conditions through the interaction of the limiting protrusions 912 and the limiting holes 911.

[0053] like ​As shown, in this embodiment, a second annular member 923 is provided on one side of the limiting protrusion 912. The second annular member 923 is slidably connected to the outer wall of the elastic fixing tube 921 and connected to the first annular member 922 through a second elastic member 924. One end of the second elastic member 924 is fixedly connected to one side of the second annular member 923, and the other end is connected to the outer wall of the elastic fixing tube 921 through the first annular member 922. During operation, the second annular member 923 can automatically reset under the action of the second elastic member 924. When the second annular member 923 resets, it pushes the limiting protrusion 912 to slide to the inner wall of the limiting hole 911, thereby further fixing the connecting ring 68 and ensuring the stability of the internal sealing effect of the inflatable frame structure 10.

[0054] The technical solution of this embodiment has the following advantages:

[0055] 1. The inflatable frame structure 10, sealing plug 80, flexible sealing ring 62, and their supporting structures provide excellent sealing performance. The combined design of the flexible sealing ring 62 with the limiting plate 66 and the first elastic element 64 effectively prevents deformation or leakage caused by excessive compression during the sealing process, thereby ensuring stable sealing of the gas inside the inflatable frame structure 10, reducing the risk of gas leakage, and improving the reliability of the seal.

[0056] 2. The inflatable frame structure 10 is rapidly expanded and formed via the inflation tube 61. Combined with the use of Velcro, PVC-coated mesh fabric, and TPU environmentally friendly transparent film for mutual fixation, the installation and disassembly of the equipment are convenient and quick. When the equipment arrives on site or needs to be relocated, it can be easily installed and disassembled, greatly saving time and improving work efficiency.

[0057] 3. The magnetic components and magnetic suction devices installed on the door curtain structure 30 can automatically attract and close without manual operation, making it more convenient to enter and exit the workshop while ensuring airtightness. Even when personnel frequently enter and exit, it can effectively prevent dust from entering the workshop and maintain a clean environment.

[0058] 4. The combination of vents 50, the tapered structure 70, and the Velcro closure, along with the pull cord 72 control design, makes airflow adjustment within the cleanroom convenient and flexible. Users can adjust the airflow and direction according to actual working conditions to adapt to different working temperatures and humidity environments, thereby better maintaining the air quality inside the cleanroom.

[0059] 5. The positioning is fixed by the interlocking of the limiting hole 911 and the limiting protrusion 912, preventing the sealing plug 80 from loosening under high pressure. The second annular member 923 and the second elastic member 924 further ensure the positioning of the limiting protrusion 912 and enable the second annular member 923 to quickly reset, providing additional safety for the sealing process. This stable fixing and resetting design significantly improves the stability and safety of the sealing system.

[0060] Specifically, the cleanroom for substations provided in this application forms a closed space through an inflatable frame structure 10 and a protective layer 20, effectively isolating the external environment and preventing dust and impurities from entering, thus ensuring the cleanliness of the substation equipment and improving its operating efficiency and safety. The transparent section 40 facilitates observation of the internal conditions by staff, while the combination of the constricted structure 70 and the vent 50 ensures ventilation and, by adjusting the opening size of the constricted structure 70, controls the entry of impurities during airflow, further enhancing the protective effect of the cleanroom. The special design of the inflatable section 60 ensures reliable sealing while facilitating inflation and maintenance. The overall solution improves the operating environment of the substation equipment, significantly benefiting equipment lifespan and reducing maintenance costs. Furthermore, this cleanroom offers excellent adaptability and flexibility, allowing for customization according to the size and requirements of different substation equipment. It is suitable for the protection of various substation equipment, such as transformers and switchgear, especially in scenarios requiring frequent opening and closing, such as equipment inspection, replacement, or routine maintenance, where its ease of operation and efficiency advantages are even more pronounced. Meanwhile, the cleanroom also has excellent mobility and portability, and can be quickly deployed between different substations as needed, greatly improving the flexibility and response speed of equipment protection, and providing more comprehensive and efficient protection for the operation of substation equipment.

[0061] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0062] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0063] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0064] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A cleanroom for substations, characterized in that, include: An inflatable frame structure (10) has an inflation channel; A protective layer (20) is provided on the inflatable frame structure (10), and an inlet and outlet are provided on the first side wall of the protective layer (20); A door curtain structure (30) is provided at the entrance / exit; A transparent portion (40) is provided on the second sidewall of the protective layer (20); Multiple vent holes (50) are spaced apart on the sidewall of the protective layer (20); The inflation part (60) is connected to the inflation channel of the inflation frame structure (10); Multiple constriction structures (70) are provided one-to-one with multiple ventilation holes (50). The opening size of the constriction structure (70) is adjustable. The constriction structure (70) includes an annular flexible member (71) and a pull rope (72). The outer ring of the annular flexible member (71) is connected to the edge of the ventilation hole (50). The pull rope (72) is connected to the inner ring of the annular flexible member (71). The pull rope (72) can drive the diameter of the inner ring of the annular flexible member (71) to decrease. The cleanroom of the substation also includes a sealing plug (80). The inflation part (60) includes an inflation pipe (61), a flexible sealing ring (62), a fixing frame (63), and a plurality of first elastic elements (64). The first end of the inflation pipe (61) is connected to the inflation frame structure (10). The flexible sealing ring (62) is connected to the second end of the inflation pipe (61). The fixing frame (63) is connected to the inflation pipe (61) or the inflation frame structure (10). The plurality of first elastic elements (64) are spaced apart along the circumference of the flexible sealing ring (62). The first elastic elements (64) are disposed between the fixing frame (63) and the flexible sealing ring (62). The first elastic elements (64) can apply elastic force to the flexible sealing ring (62) so that when the sealing plug (80) is inserted into the flexible sealing ring (62), the sealing plug (80) and the flexible sealing ring (62) abut against each other.

2. The substation cleanroom according to claim 1, characterized in that, The fixing frame (63) is provided with a clearance recess (631), and the first elastic member (64) is located in the clearance recess (631).

3. The substation cleanroom according to claim 1, characterized in that, The inflation part (60) also includes a positioning ring (65), which is sleeved on the outer periphery of the flexible sealing ring (62). The positioning ring (65) has a plurality of notches (651) spaced apart, and the plurality of notches (651) are provided one-to-one with the plurality of first elastic members (64).

4. The substation cleanroom according to claim 3, characterized in that, The inflation part (60) also includes a plurality of limiting plates (66), and at least two of the limiting plates (66) are provided on the outer periphery of each notch (651), and the limiting plates (66) are limited and cooperate with the first elastic member (64).

5. The substation cleanroom according to claim 2, characterized in that, The inflation part (60) also includes a plurality of connecting plates (67), which are arranged one-to-one with a plurality of the first elastic members (64). The connecting plates (67) are located inside the relief recess (631) and abut against the first elastic members (64).

6. The substation cleanroom according to claim 1, characterized in that, The inflation part (60) further includes a connecting ring (68), which is connected to the fixing frame (63) and located on the side of the fixing frame (63) away from the inflation frame structure (10). The substation cleanroom further includes a first limiting structure (91), which is located between the connecting ring (68) and the sealing plug (80).

7. The substation cleanroom according to claim 6, characterized in that, The first limiting structure (91) includes a limiting hole (911) and a limiting protrusion (912). The limiting protrusion (912) can be inserted into the limiting hole (911). One of the limiting hole (911) and the limiting protrusion (912) is disposed on the connecting ring (68), and the other of the limiting hole (911) and the limiting protrusion (912) is disposed on the sealing plug (80).

8. The substation cleanroom according to claim 7, characterized in that, The substation cleanroom also includes a second limiting structure (92), which includes an elastic fixing tube (921). The elastic fixing tube (921) is sleeved on the outer periphery of the connecting ring (68) and connected to the inflatable frame structure (10).

9. The substation cleanroom according to claim 8, characterized in that, The second limiting structure (92) further includes a first annular member (922), a second annular member (923), and a second elastic member (924). The second elastic member (924) is connected between the first annular member (922) and the second annular member (923). The first annular member (922) is fixedly connected to the elastic fixing tube (921) and / or the inflatable frame structure (10). The second annular member (923) is movably disposed. The second elastic member (924) has an initial position and a compression position. When the second elastic member (924) is in the initial position, the second annular member (923) is located outside the first limiting structure (91). When the second elastic member (924) is in the compression position, the second annular member (923) is located between the first limiting structure (91) and the inflatable frame structure (10).

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