Inflation isolation device for volatile pollution site

Abstract

The invention discloses an inflation isolation device for a volatile pollution site, and relates to the technical field of environmental engineering, the inflation isolation device comprises a protection main body and a supporting main body, the protection main body is composed of an isolation layer arranged on the ground, two inflation type protection end walls and at least one inflation type dome isolation cover arranged between the isolation layer and the two inflation type protection end walls; all the components are in airtight connection through sealing zipper structures; the supporting body comprises an arch-shaped supporting frame arranged on the inner side of the inflation body, a connecting rod and a supporting base body. In the using process, through cooperation of the modular inflation units and the sealing zippers, rapid and flexible expansion and reliable sealing of an isolation space are achieved, and the stability of a large-span space is guaranteed through an internal supporting structure; the technical problems that in the prior art, an isolation device is poor in expansibility, low in splicing reliability and difficult to adapt to large-scale complex sites are solved.

Description

Technical Field

[0001] This application relates to the field of environmental engineering technology, specifically to an inflatable isolation device for sites prone to volatile pollution. Background Technology

[0002] In the fields of environmental engineering and contaminated site remediation, effectively controlling the diffusion of volatile organic compounds (VOCs) is a core element in ensuring operational safety and preventing secondary pollution. Currently, when implementing remediation technologies such as thermal desorption, gas-phase extraction, and chemical oxidation, it is usually necessary to temporarily seal off the contaminated area and establish internal negative pressure to extract and collect the volatilized gaseous pollutants, thereby achieving centralized treatment of pollutants and preventing the diffusion of volatile pollutants.

[0003] However, existing isolation devices exhibit significant structural deficiencies when dealing with large-scale or irregularly shaped contaminated sites. While rigid canopies offer structural stability, they lack flexibility, making it difficult to expand or change their form according to actual needs, resulting in low deployment efficiency and high costs. Existing inflatable isolation devices are mostly monolithic designs with their coverage area and geometry fixed during manufacturing, failing to adapt flexibly to work sites of varying sizes. More importantly, current technologies lack a modular structural solution that enables rapid and reliable assembly, leading to a series of problems when constructing large-scale isolation spaces, including poor airtightness of joints, weak structural integrity, and the potential for localized damage to cause overall failure.

[0004] Therefore, this application proposes an inflatable isolation device for sites prone to volatile pollution, which can solve the problems of existing isolation devices being difficult to expand flexibly, having insufficient airtightness when spliced, and being unable to adapt to large-scale irregular polluted sites. Summary of the Invention

[0005] The main objective of this application is to provide an inflatable isolation device for sites prone to volatile pollution, aiming to solve the technical problems of existing isolation devices being difficult to expand flexibly, having insufficient airtightness when spliced, and being unable to adapt to large-scale irregular polluted sites.

[0006] To achieve the above objectives, this application provides the following technical solution: An inflatable isolation device for sites prone to volatile pollution includes: The protective structure includes an isolation layer on the ground, two inflatable protective end walls opposite each other on the isolation layer, and at least one inflatable dome-shaped isolation cover between the two protective end walls; the protective end walls are connected to adjacent dome-shaped isolation covers, and between every two adjacent dome-shaped isolation covers, via a sealed zipper structure; the isolation layer is connected to the bottom of each protective end wall and the bottom of each dome-shaped isolation cover via the sealed zipper structure. The supporting body includes an arched support frame disposed inside each of the protective end walls and each dome isolation cover, and a plurality of connecting rods connecting each pair of adjacent support frames; each support frame is connected to a support base at both ends, and the support base is disposed on the isolation layer.

[0007] As a further improvement of this application, the sealed zipper structure includes a main zipper that bears the main connecting traction force, and at least one auxiliary zipper that is parallel to the main zipper and serves as an airtight seal; the main zipper is a double-tooth open-end zipper, the auxiliary zipper is a closed-end waterproof zipper, and the tensile strength of the teeth and base of the main zipper is greater than that of the auxiliary zipper.

[0008] As a further improvement of this application, both the protective end wall and the dome isolation cover are double-layer structures, each including two oppositely arranged outer skins and inner skins, and multiple connecting strips distributed in an array between the outer skins and inner skins; the outer skins, inner skins and connecting strips are all made of transparent, airtight, flexible material, and are heat-sealed together to form multiple honeycomb-shaped air chambers.

[0009] As a further improvement of this application, the honeycomb-shaped air chambers of the protective end wall and the dome isolation cover are interconnected; both the protective end wall and the dome isolation cover are provided with an inflation valve and an venting valve that communicate with their internal air chambers; the initial state of the inflation valve and the venting valve is normally closed.

[0010] As a further improvement of this application, the support base includes a base plate and a side plate; the lower surface of the base plate is fixedly connected to the isolation layer by an adhesive; the side plate is an arc-shaped plate coaxial with the arched support frame, and its axial side is connected to one side of the base plate, and the connection is rounded; the inner side of the side plate is provided with a hole that matches the shape of the end of the arched support frame, for inserting and fixing the end of the arched support frame.

[0011] As a further improvement of this application, the inflatable isolation device further includes a gas circulation pipeline network; the gas circulation pipeline network is provided with a first branch pipe, a first main pipe, a second branch pipe and a second main pipe, and each of the dome isolation hoods is provided with an exhaust port and an air supply port; each of the exhaust ports is connected to the first main pipe through a first branch pipe, and the first main pipe is connected to an external negative pressure source and the input port of the purification equipment; each of the air supply ports is connected to the second main pipe through a second branch pipe, and the second main pipe is connected to an external purified air source.

[0012] As a further improvement of this application, the inflatable isolation device is characterized in that it further includes a pressure sensor and a VOC sensor disposed inside the dome isolation cover, for real-time monitoring of the pressure value and volatile organic compound content inside the protective body.

[0013] As a further improvement of this application, the inflatable isolation device further includes a control mechanism electrically connected to the pressure sensor and the VOC sensor. The control mechanism is used to control the external negative pressure source, purification equipment and purified air source according to the pressure signal output by the pressure sensor to maintain the internal negative pressure, and to generate an alarm command according to the VOC content signal output by the VOC sensor exceeding the limit.

[0014] The technical solution provided in this application may include the following beneficial effects: In use, this application employs a modular structure connecting two inflatable protective end walls to at least one inflatable dome isolation cover, enabling the device to flexibly expand its coverage area according to actual site requirements. By using a sealed zipper structure at all connection points, the airtightness and connection reliability of the modules are ensured. By setting up a support body consisting of an arched support frame and connecting rods inside the device, a stable structural support is provided for the expanded large-scale isolation space, thereby solving the technical problems of existing isolation devices being difficult to expand flexibly, having low splicing reliability, and being unable to adapt to large-scale complex sites. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of an inflatable isolation device for use in areas prone to volatile pollution. Figure 2 This is a schematic diagram of a sealed zipper structure for an inflatable isolation device used in areas prone to volatile pollution. Figure 3 This is a structural schematic diagram of a protective end wall / dome enclosure for an inflatable isolation device used in areas prone to volatile pollution. Figure 4 This is a three-dimensional structural diagram of the supporting body of an inflatable isolation device for use in areas prone to volatile pollution. Figure 5 This is a schematic diagram of the gas circulation pipeline structure of an inflatable isolation device for sites prone to volatile pollution; Figure label: 1. Protective main body; 11. Isolation layer; 12. Protective end wall; 13. Dome isolation cover; 14. Outer skin; 15. Inner skin; 16. Connecting belt; 2. Support main body; 21. Support frame; 22. Connecting rod; 23. Support base; 231. Base plate; 232. Side plate; 233. Insertion hole; 3. Sealing zipper structure; 31. Main zipper; 32. Auxiliary zipper; 4. Gas circulation pipeline network; 41. First branch pipe; 42. First main pipe; 43. Second branch pipe; 44. Second main pipe. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the described embodiments are merely some, not all, of the embodiments of this application. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0018] Figure 1 An embodiment of an inflatable isolation device for sites prone to volatile pollution is shown in this application. See [link to relevant documentation]. Figure 1 In this embodiment, the inflatable isolation device includes: a protective body 1 and a supporting body 2.

[0019] Among them, see Figure 1The protective body 1 includes an isolation layer 11 on the ground, two inflatable protective end walls 12 opposite each other on the isolation layer 11, and at least one inflatable dome isolation cover 13 between the two protective ends. The protective end walls 12 are connected to the adjacent dome isolation covers 13, between each pair of adjacent dome isolation covers 13, and between the isolation layer 11 and the bottom of each protective end wall 12 and dome isolation cover 13 by a sealed zipper structure 3. The support body 2 includes an arched support frame 21 on the inner side of each protective end wall 12 and dome isolation cover 13, multiple connecting rods 22 connecting adjacent support frames 21, and a support base 23 on the isolation layer 11. This structure achieves flexible expansion of coverage through modular design, ensures airtight reliability at the connection through the sealed zipper structure 3, and provides stable support for large-scale spaces through the internal support body 2, thereby solving the technical problems of existing isolation devices being difficult to expand flexibly, having low splicing reliability, and being unsuitable for large-scale complex sites.

[0020] Optionally, the isolation layer 11 is a multi-layer composite structure, comprising, from top to bottom, an upper protective blanket, a middle geomembrane, and a lower foundation pad; the upper protective blanket is made of polyester non-woven fabric with a unit area mass of not less than 300 g / m², used to prevent mechanical damage to the geomembrane from the upper supporting substrate 23 and operational activities; the middle geomembrane is a high-density polyethylene (HDPE) geomembrane or polyvinyl chloride (PVC) waterproof membrane with a thickness of not less than 1.0 mm and a permeability coefficient not exceeding [missing information]. The core seepage barrier of the isolation layer 11 is formed by the needle-punched geotextile with a unit area mass of not less than 200g / m², which is laid on a flat and compacted soil base to protect the geomembrane from being punctured by sharp gravel and to evenly distribute the load.

[0021] Further, see Figure 2 The sealed zipper structure 3 includes a main zipper 31 that bears the main connecting traction force, and at least one auxiliary zipper 32 that is parallel to the main zipper 31 and plays an airtight sealing role. The main zipper 31 is a double-tooth open-end zipper, made of high-strength engineering plastic or metal teeth and high-strength nylon base tape to ensure the mechanical reliability of the overall structural connection. The auxiliary zipper 32 is a closed-end waterproof zipper, whose teeth and base tape are made of integrated PVC or TPU material and are heat-sealed to the edge of the airtight layer to form a continuous flexible sealing barrier.

[0022] Optionally, the tensile strength of the teeth and base of the main zipper 31 is greater than that of the auxiliary zipper 32; the tensile strength of the main zipper 31 is not less than 5000N, focusing on resisting the peeling force generated by negative pressure and wind load, while the tensile strength of the auxiliary zipper 32 is between 800-1500N, mainly providing airtight redundancy and auxiliary load bearing. The two complement each other in structure and function.

[0023] In a preferred embodiment, the sealing zipper structure 3 is provided with a main zipper 31 and two auxiliary zippers 32, which are arranged side by side, with the main zipper 31 located between the two auxiliary zippers 32; the main zipper 31 is centrally located to connect the core structure, and the auxiliary zippers 32 on both sides are located at the inner and outer edges of the airtight layer, respectively, together forming multiple redundant sealing defenses, which significantly enhances the airtight reliability and resistance to local failure at the interface.

[0024] Further, see Figure 3 Both the protective end wall 12 and the dome isolation cover 13 are double-layer structures, each including two oppositely arranged outer skins 14 and inner skins 15, and multiple connecting strips 16 arranged in an array between the outer skins 14 and inner skins 15. The outer skins 14, inner skins 15 and connecting strips 16 are all made of transparent, airtight, flexible material, and are formed together by high-frequency heat sealing process to form multiple sealed honeycomb-shaped independent air chambers. After inflation, this structure can significantly improve the overall rigidity and deformation resistance, while maintaining excellent light transmittance for easy observation of the operation.

[0025] Optionally, the outer skin 14, inner skin 15 and connecting belt 16 can be made of high-strength TPU (thermoplastic polyurethane elastomer) coated fabric or PVC (polyvinyl chloride) coated fabric, with the base fabric being high-strength polyester, the areal density being not less than 800D, and the coating thickness being between 0.3-0.5mm, thus possessing both high tensile strength, excellent airtightness and chemical corrosion resistance.

[0026] Optionally, multiple limiting sleeves are heat-sealed on the side of the inner skin 15 away from the outer skin 14. The limiting sleeves are annular sleeve structures made of elastic webbing, and their inner diameter is adapted to the outer diameter of the arched support frame 21. By fitting the limiting sleeves one by one onto the support frame 21, the dome isolation cover 13 or the protective end wall 12 can be stably attached to the support frame 21, preventing relative displacement under negative pressure or wind load, while not affecting its inflation shape and airtight integrity.

[0027] In a preferred embodiment, the outer skin 14, the inner skin 15, and the connecting belt 16 are all made of high-strength polyester fabric with a 0.4mm thick PVC coating, and its tensile strength is not less than 5000N / 5cm in the warp direction and not less than 4500N / 5cm in the weft direction. The surface of the outer skin 14 can be treated with PVDF (polyvinylidene fluoride) to enhance weather resistance and UV resistance, while the surface of the inner skin 15 remains smooth to facilitate cleaning and reduce the adhesion of contaminants.

[0028] Furthermore, the honeycomb-shaped air chambers of the protective end wall 12 and the dome isolation cover 13 are interconnected through internal air channels to form a unified inflation chamber. The side walls or tops of the protective end wall 12 and the dome isolation cover 13 are equipped with inflation valves and deflation valves that communicate with their internal air chambers, so that each independent module can complete the overall inflation and deflation operation through a single inflation / deflation port, simplifying the operation process and facilitating rapid equalization of internal pressure within the module.

[0029] It should be noted that both the inflation valve and the deflation valve are initially in a normally closed state. They are equipped with sealing cores or spring clamping mechanisms to ensure that the valves are always in a sealed state when the device is not in operation, preventing the leakage of pollutants or the intrusion of external impurities, and ensuring the airtightness and environmental safety of the device.

[0030] Optionally, the inflation valve and the deflation valve can be valves with different structures to suit their functions: the inflation valve preferably uses a quick inflation connector with a dust cover, which can be quickly connected to a portable air pump; the deflation valve preferably uses a manual knob-type pressure regulating valve or a solenoid valve, which can achieve slow manual depressurization to meet the safety requirements during storage, or can be connected to the control system to achieve electric remote control operation, thereby improving work efficiency and automation.

[0031] Further, see Figure 4 The support base 23 includes a base plate 231 and a side plate 232; the lower surface of the base plate 231 is fixedly connected to the isolation layer 11 by an adhesive; the side plate 232 is an arc-shaped plate coaxial with the arch support frame 21, and its axial side is connected to one side of the base plate 231, and the connection is rounded; the inner side of the side plate 232 is provided with an insertion hole 233 that matches the shape of the end of the arch support frame 21, for inserting and fixing the end of the arch support frame 21.

[0032] Optionally, the base plate 231 is preferably a rectangular plate structure with an area larger than the projected area of ​​the end of the support frame 21 to provide stable support; the connection between the side plate 232 and the base plate 231 adopts an arc transition with a radius of not less than 5mm to effectively avoid stress concentration; the depth of the insertion hole 233 is 1 / 2 to 2 / 3 of the height of the side plate 232, and its inner wall can be provided with anti-slip texture or elastic bushing to enhance the connection stability with the end of the support frame 21.

[0033] Optionally, the adhesive is a high-strength elastic adhesive, preferably a two-component polyurethane adhesive or a modified epoxy resin structural adhesive, with an elongation at break of not less than 150% and a shear strength of not less than 5MPa. This not only provides sufficient bonding force to firmly fix the support substrate 23 to the isolation layer 11, but also adapts to slight unevenness of the ground and slight deformation during the operation of the inflatable structure, ensuring long-term reliability.

[0034] Optionally, the cross-sections of the insertion hole 233 and the end of the support frame 21 are both non-circular structures that match, such as rectangular, elliptical, or polygonal. Preferably, a rectangular cross-section with rounded corners is used, which provides circumferential restraint to prevent relative rotation between the support frame 21 and the support base 23, while avoiding stress concentration problems caused by sharp corners. The end of the support frame 21 can be inserted into more than half the depth of the insertion hole 233 and is radially locked by a pin or bolt, thereby achieving reliable fixation after quick assembly.

[0035] Further, see Figure 5 The inflatable isolation device also includes a gas circulation network 4; the gas circulation network 4 is provided with a first branch pipe 41, a first main pipe 42, a second branch pipe 43, and a second main pipe 44. Each dome isolation hood 13 is provided with an exhaust port and an air supply port; each exhaust port is connected to the first main pipe 42 through a first branch pipe 41, and the first main pipe 42 is connected to an external negative pressure source and the input port of the purification equipment; each air supply port is connected to the second main pipe 44 through a second branch pipe 43, and the second main pipe 44 is connected to an external purified air source. The branch pipes and the main pipes are connected by quick connectors, which facilitates modular assembly and disassembly on site; the air supply port is preferably located on the lower part of the side wall of the dome isolation hood 13, and the exhaust port is located on the top, which is conducive to forming an upward airflow organization and efficiently discharging volatile pollutants.

[0036] It should be noted that the negative pressure source is a high-pressure centrifugal fan or a Roots blower with a rated air volume of not less than 2000 m³ / h and a static pressure of not less than 2000 Pa, capable of forming and maintaining a stable negative pressure of -30 Pa to -100 Pa inside the device; the purification equipment is one or more combinations of activated carbon adsorption tank, catalytic oxidation device, or high-efficiency particulate filter, used to adsorb, decompose, or filter VOCs in polluted gas; the purified gas source is the qualified gas after being treated by the purification equipment, which can be returned to the inside of the device through the second main pipe 44 to achieve gas circulation, or connected to the fresh air supply system to maintain the air quality inside the device.

[0037] Furthermore, the inflatable isolation device also includes a pressure sensor and a VOC sensor installed inside the dome isolation enclosure 13, for real-time monitoring of the air pressure and volatile organic compound content inside the protective body 1. All sensors are installed through sealed interfaces pre-embedded in the skin, with silicone sealing rings used at the interfaces to ensure airtightness. Sensor data is transmitted to an external control mechanism via wired or wireless means, and is distributed throughout the dome isolation enclosure 13, enabling comprehensive monitoring of environmental parameter changes in different areas.

[0038] Optionally, the pressure sensor is a high-precision digital absolute pressure sensor or differential pressure sensor with a range of -150Pa to +50Pa, an accuracy class of not less than 0.5, and an operating temperature range of -20℃ to +70℃. Preferably, a MEMS piezoresistive sensor with temperature compensation function is used, which has good long-term stability and anti-interference ability, and can accurately reflect the micro-pressure changes inside the device, providing real-time data support for negative pressure control.

[0039] Optionally, the VOC sensor is a photoionization detector (PID) sensor or a metal oxide semiconductor (MOS) sensor; the PID sensor is preferably equipped with a 10.6 eV ultraviolet lamp, with a detection range of 0.1-2000 ppm and a resolution of up to 0.1 ppm, and has high sensitivity to VOCs such as aromatic hydrocarbons and alkenes; the MOS sensor has a good response to VOCs such as alkanes and alcohols, with a detection range of 1-500 ppm; the appropriate sensor type can be selected according to the type of target pollutant, or two types of sensors can be deployed simultaneously in key areas to achieve complementary monitoring.

[0040] Furthermore, the inflatable isolation device also includes a control mechanism electrically connected to the pressure sensor and the VOC sensor. The control mechanism controls the external negative pressure source, purification equipment, and purified air source based on the pressure signal from the pressure sensor to maintain internal negative pressure, and generates an alarm command based on the VOC content signal output by the VOC sensor exceeding the limit. The control mechanism is preferably installed in a waterproof control box on the outside of the protective end wall 12, connected to each sensor and actuator via shielded cables. The box has a protection rating of at least IP65, capable of meeting the dustproof and waterproof requirements of outdoor operating environments.

[0041] Optionally, the control mechanism is an embedded control system based on a programmable logic controller (PLC) or an industrial computer (IPC), which has several control instructions pre-stored, including: Negative pressure closed-loop control command: Real-time acquisition of air pressure sensor signals, dynamic adjustment of negative pressure source fan speed through PID algorithm, so that the internal pressure of the device is stably maintained at the set value (e.g. -50Pa), with a fluctuation range not exceeding ±5Pa; Safety interlock control commands: When the detected VOC content exceeds the first-level alarm threshold (e.g., 50% LEL), the negative pressure source power is automatically increased and the audible and visual alarm is activated; when the content exceeds the second-level danger threshold (e.g., 80% LEL), the emergency shutdown procedure is immediately executed and all inlet and outlet valves are closed. Equipment start / stop sequence commands: Control external equipment such as purification equipment and air supply units to start and stop in a preset sequence to avoid power surges and ensure coordinated system operation; Data recording and transmission instructions: Record operating parameters such as pressure and VOC concentration at regular intervals, and remotely transmit the data to the monitoring center via a 4G / 5G wireless module.

[0042] For example, the working principle of an inflatable isolation device is as follows: When the inflatable isolation device is in operation, it first inflates the protective end wall 12 and the dome isolation cover 13 through the inflation equipment, causing them to expand rapidly and form a complete sealed space connected by the sealing zipper structure 3. The arched support frame 21 and connecting rod 22 of the supporting body 2 provide internal skeleton support for the inflatable structure, enhancing overall stability. During device operation, the gas circulation system is activated. An external negative pressure source draws polluted gas from inside the device through the first main pipe 42 and the first branch pipe 41 via the exhaust port and sends it to the purification equipment for treatment. At the same time, the purified gas is sent back into the device through the second main pipe 44 and the second branch pipe 43 via the air outlet, forming a circulating airflow. The control mechanism receives monitoring signals from the air pressure sensor and VOC sensor in real time, and maintains the internal set negative pressure value by dynamically adjusting the power of the negative pressure source to ensure that pollutants do not leak out. When the VOC concentration exceeds the limit, an alarm is immediately triggered and the system operating parameters are adjusted accordingly, thereby achieving safe and efficient isolation and remediation of volatile pollutants.

[0043] It should be noted that this application focuses on the system integration scheme, installation arrangement, and collaborative working principle of the pressure sensor, VOC sensor, and control mechanism in an inflatable isolation device. The specific internal structure and component composition fall within the scope of existing technology in this field. The specification and accompanying drawings of this application clearly show the typical installation positions / areas of each sensor and their connection relationships and control logic with the control and actuator mechanisms. This disclosure is sufficient for those skilled in the art to understand and implement the technical solution of this application; therefore, the specific internal structures of the pressure sensor, VOC sensor, and control mechanism themselves will not be described in detail.

[0044] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An inflatable isolation device for sites prone to volatile pollution, characterized in that, include: The protective body (1) includes an isolation layer (11) on the ground, two inflatable protective end walls (12) opposite to each other on the isolation layer (11), and at least one inflatable dome isolation cover (13) between the two protective ends; the protective end walls (12) are connected to the adjacent dome isolation covers (13) and between each pair of adjacent dome isolation covers (13) by a sealing zipper structure (3); the isolation layer (11) is connected to the bottom of each protective end wall (12) and the bottom of each dome isolation cover (13) by the sealing zipper structure (3); The supporting body (2) includes an arched support frame (21) located inside each of the protective end walls (12) and each dome isolation cover (13), and a plurality of connecting rods (22) connected between each two adjacent support frames (21); each support frame (21) is connected to a support base (23) at both ends, and the support base (23) is located on the isolation layer (11).

2. The inflatable isolation device according to claim 1, characterized in that, The sealed zipper structure (3) includes a main zipper (31) that bears the main connecting traction force, and at least one auxiliary zipper (32) that is parallel to the main zipper (31) and plays an airtight sealing role; the main zipper (31) is a double-tooth open-end zipper, and the auxiliary zipper (32) is a closed-end waterproof zipper; the tensile strength of the chain teeth and base of the main zipper (31) is greater than that of the auxiliary zipper (32).

3. The inflatable isolation device according to claim 1, characterized in that, The protective end wall (12) and the dome isolation cover (13) are both double-layer structures, each including two oppositely arranged outer skins (14) and inner skins (15), and multiple connecting strips (16) distributed in an array between the outer skins (14) and inner skins (15); the outer skins (14), inner skins (15) and connecting strips (16) are all made of transparent, airtight, flexible material, and are heat-sealed together to form multiple honeycomb-shaped air chambers.

4. The inflatable isolation device according to claim 3, characterized in that, The protective end wall (12) and the dome isolation cover (13) are respectively connected to each other in their respective honeycomb-shaped air chambers; both the protective end wall (12) and the dome isolation cover (13) are provided with an inflation valve and an venting valve that are connected to their internal air chambers; the initial state of the inflation valve and the venting valve is normally closed.

5. The inflatable isolation device according to claim 1, characterized in that, The supporting base (23) includes a base plate (231) and a side plate (232); the lower surface of the base plate (231) is fixedly connected to the isolation layer (11) by an adhesive; the side plate (232) is an arc-shaped plate coaxial with the arch support frame (21), and its axial side is connected to one side of the base plate (231), and the connection is rounded; the inner side of the side plate (232) is provided with a hole (233) that matches the shape of the end of the arch support frame (21), for inserting and fixing the end of the arch support frame (21).

6. The inflatable isolation device according to claim 1, characterized in that, It also includes a gas circulation network (4); the gas circulation network (4) is provided with a first branch pipe (41), a first main pipe (42), a second branch pipe (43) and a second main pipe (44), and each of the dome isolation covers (13) is provided with an exhaust port and an air supply port; each of the exhaust ports is connected to the first main pipe (42) through a first branch pipe (41), and the first main pipe (42) is connected to the external negative pressure source and the input port of the purification equipment; each of the air supply ports is connected to the second main pipe (44) through a second branch pipe (43), and the second main pipe (44) is connected to the external purified air source.

7. The inflatable isolation device according to claim 1, characterized in that, It also includes a pressure sensor and a VOC sensor installed inside the dome enclosure (13) for real-time monitoring of the pressure value and volatile organic compound content inside the protective body (1).

8. The inflatable isolation device according to claim 7, characterized in that, It also includes a control mechanism electrically connected to the pressure sensor and the VOC sensor. The control mechanism is used to control the external negative pressure source, purification equipment and purified air source according to the pressure signal output by the pressure sensor to maintain the internal negative pressure, and to generate an alarm command according to the VOC content signal output by the VOC sensor exceeding the limit.

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