A nuclear, biological and chemical decontamination site and decontamination method

Abstract

This invention relates to the field of nuclear, biological, and chemical (NBC) contamination decontamination, specifically to a NBC decontamination site and method. This invention cleverly integrates public sports venues with emergency decontamination functions through a site-adaptive module. Equipped with standardized transport interfaces, it facilitates rapid deployment using conventional transportation tools, enabling the construction of sufficient decontamination areas in a short time. When folded, its compact form supports multi-layer stable stacking, significantly saving storage space. The modular water system, combined with gradient drainage and waterproof construction, utilizes the natural elevation differences of the site to form a closed-loop water system, ensuring efficient decontamination and preventing wastewater overflow. A built-in residual water treatment device facilitates rapid cleanup after operations, allowing the site to quickly return to its sports uses. This effectively overcomes the shortcomings of fixed decontamination facilities being idle during normal times and the limited capacity of mobile equipment.

Description

Technical Field

[0001] This invention relates to the field of nuclear, biological, and chemical contamination decontamination, and more particularly to a nuclear, biological, and chemical decontamination site and decontamination method. Background Technology

[0002] Emergency response to nuclear, biological, and chemical (NBC) accidents is a crucial component of the public health security system. Rapid and efficient on-site decontamination is a key link in preventing the spread of contamination and protecting public health. Currently, the construction of NBC emergency decontamination sites both domestically and internationally mainly adopts three models: fixed decontamination stations, mobile decontamination vehicles, and temporary decontamination tents. Fixed decontamination stations are typically built in specific locations and equipped with fixed pipelines and specialized equipment; mobile decontamination vehicles use specialized vehicles as carriers and have a certain degree of mobility; temporary decontamination tents are simple decontamination spaces formed by assembling frames and waterproof tarpaulins on-site. These technical solutions have their own characteristics in different application scenarios, collectively forming the current technical foundation for NBC emergency decontamination.

[0003] However, existing technologies generally suffer from the following drawbacks: fixed decontamination stations are fixed and difficult to move, resulting in low utilization rates during normal times and an inability to flexibly deploy them near accident sites; mobile decontamination vehicles have limited internal space and decontamination capacity, making it difficult to meet the needs of large-scale group decontamination, and are also expensive with high maintenance costs; temporary decontamination tents have poor structural stability, insufficient waterproofing, and low decontamination efficiency, making it impossible to achieve standardized and large-scale operations. Furthermore, existing decontamination sites are all dedicated facilities and cannot be combined with civilian sites, leading to inflexible site utilization; the equipment is large and heavy, making storage and transportation inconvenient, and resulting in long emergency response times, hindering rapid large-scale deployment. Therefore, there is an urgent need for a technical solution that can meet both daily public use and be quickly converted into a high-efficiency decontamination site in emergencies, to address the technical problems of limited site function, low deployment efficiency, and limited decontamination capacity in existing technologies. Summary of the Invention

[0004] The purpose of this invention is to provide a nuclear, biological, and chemical decontamination site and decontamination method, aiming to solve the problems of limited site function, low deployment efficiency, and limited decontamination capacity in the prior art.

[0005] To achieve the above objectives, in a first aspect, the present invention provides a nuclear, biological and chemical decontamination site, including multiple decontamination modules, a site adaptation module, a pipeline connection module, a gradient drainage module and an auxiliary operation module; The decontamination module is used to provide a space for large-scale decontamination operations; The site adaptation module is used to enable seamless switching of functions between normal and emergency states for public sports venues; The pipeline connection module is used to quickly provide decontamination water to each decontamination module and ensure the pipeline is sealed. The gradient drainage module is used to collect decontamination wastewater and prevent overflow; The auxiliary operation module is used to realize the rapid positioning, transportation and storage management of the module.

[0006] The disinfection module includes a foldable frame unit, a shower operation unit, and a sealed waterproof unit. The foldable frame unit is used to provide lightweight and high-strength structural support and to realize the conversion between unfolded and folded states; The shower operation unit is used to provide a warm water disinfection environment and temporary storage for shower equipment; The sealed and waterproof unit is used to prevent decontamination wastewater from leaking from the bottom of the module into the external environment.

[0007] The site adaptation module includes a site identification unit, a ground adaptation unit, and a function conversion unit. The site identification unit is used to pre-arrange coordinate positioning marks for the decontamination module on the surface of public sports venues. The ground adaptation unit is used to adapt to the elevation differences of the site and to construct an inclined guide surface to guide the directional flow of sewage. The function switching unit is used to control the switching of the venue between normal sports functions and emergency decontamination functions according to the emergency response level.

[0008] The pipeline connection module includes a water supply connection unit, a shower head connection unit, and a residual water management unit. The water supply connection unit is used to introduce external water sources into the decontamination area through a standardized water hose reel; The shower head docking unit is used to achieve a quick plug-in sealed connection between the shower head and the water supply pipe; The residual water management unit is used to drain residual water from the pipeline and module after the operation is completed.

[0009] The gradient drainage module includes a flow guiding unit, a water collection unit, and an overflow prevention unit. The diversion unit is used to guide sewage from the washing and disinfection site to the collection point by utilizing the elevation difference of the ground slope; The water collection unit is used to collect wastewater discharged from multiple modules along the module arrangement direction; The overflow prevention unit is used to prevent sewage from overflowing and to block backflow pollution through a flap-type waterproof structure.

[0010] The auxiliary operation module includes a transportation interface unit, a positioning and layout unit, and a storage management unit. The transport interface unit is used to provide forklift loading and unloading interfaces and ox tractor wheel rails to realize the batch transfer of modules. The positioning and arrangement unit is used to quickly position the decontamination module to a preset coordinate according to an array layout of 13 rows and 8 columns; The storage management unit is used to achieve stable stacking and centralized storage management of multi-layer modules in the collapsed state.

[0011] Secondly, a decontamination method for a nuclear, biological, and chemical (NBC) decontamination site, used in the NBC decontamination site described in the first aspect, includes the following steps: Upon receiving a report of a nuclear, biological, and chemical accident, the scale of decontamination is determined according to the emergency plan, and decontamination modules are transported to public sports venues using forklifts or pallet jacks. The decontamination modules are arranged in an array of 13 rows and 8 columns according to the site location markers, forming a decontamination area with multiple decontamination positions. Lay water pipes to connect to the water source, install shower heads through quick-connect units, and establish drainage channels for the gradient drainage module. Turn on the warm water system and guide the people to be disinfected to the corresponding disinfection positions. Use the flip-up waterproof structure and the inclined ground to achieve stepped disinfection and sewage collection. After disinfection, the pipelines were removed, residual water was drained, the modules were folded up and moved back to the warehouse, and the site was restored to its sports use.

[0012] This invention discloses a nuclear, biological, and chemical (NBC) decontamination site, comprising multiple decontamination modules, a site adaptation module, a pipeline connection module, a gradient drainage module, and an auxiliary operation module. The multiple decontamination modules are arranged in a 13-row, 8-column array on the surface of a public sports field, forming a large-scale decontamination operation space containing 104 decontamination modules and 208 decontamination positions (416 positions in total on both sides). Each decontamination module is independent yet quickly assembled via standardized interfaces. The site adaptation module is pre-embedded or installed in the basketball or tennis court surface to identify site coordinates and support module positioning. The pipeline connection module connects external water sources to the shower heads of each decontamination module via quick-connect couplings. The gradient drainage module utilizes the natural slope of the ground or artificially created stepped elevation differences to form sewage diversion channels. The auxiliary operation module enables rapid module transport via forklift transport interfaces and pallet jack wheel tracks. The five modules work collaboratively, achieving the technical effect of normal use as a public sports field during peacetime and rapid conversion into a large-scale NBC decontamination site in emergencies. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of a nuclear, biological, and chemical decontamination site provided by the present invention.

[0015] Figure 2 This is a schematic diagram of the disinfection module.

[0016] Figure 3 This is a schematic diagram of the site adaptation module.

[0017] Figure 4 This is a schematic diagram of the pipeline connection module.

[0018] Figure 5 This is a schematic diagram of a gradient drainage module.

[0019] Figure 6 This is a schematic diagram of the auxiliary operation module.

[0020] Figure 7 This is a flowchart of a decontamination method for a nuclear, biological, and chemical decontamination site provided by the present invention.

[0021] In the diagram: 1-Disinfection module, 2-Site adaptation module, 3-Pipeline connection module, 4-Gradient drainage module, 5-Auxiliary operation module, 11-Foldable frame unit, 12-Shower operation unit, 13-Sealing and waterproof unit, 21-Site marking unit, 22-Ground adaptation unit, 23-Function conversion unit, 31-Water supply connection unit, 32-Shower head docking unit, 33-Residual water management unit, 41-Flow guiding unit, 42-Water collection unit, 43-Overflow prevention unit, 51-Transport interface unit, 52-Positioning and layout unit, 53-Storage management unit. Detailed Implementation

[0022] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0023] Please see Figures 1 to 6 In a first aspect, the present invention provides a nuclear, biological and chemical decontamination site, including multiple decontamination modules 1, site adaptation modules 2, pipeline connection modules 3, gradient drainage modules 4 and auxiliary operation modules 5; The decontamination module 1 is used to provide a space for large-scale decontamination operations; The site adaptation module 2 is used to enable seamless switching of functions between normal and emergency states for public sports venues. The pipeline connection module 3 is used to quickly provide decontamination water to each decontamination module 1 and ensure the pipeline sealing. The gradient drainage module 4 is used to collect decontamination wastewater and prevent overflow; The auxiliary operation module 5 is used to realize the rapid positioning, transportation and storage management of the module.

[0024] In this embodiment, the nuclear, biological, and chemical (NBC) decontamination site includes multiple decontamination modules 1, a site adaptation module 2, a pipeline connection module 3, a gradient drainage module 4, and an auxiliary operation module 5. The multiple decontamination modules 1 are arranged in a 13-row, 8-column array on the surface of a public sports field, forming a large-scale decontamination operation space containing 104 decontamination modules 1 and 208 decontamination positions (416 decontamination positions in total on both sides). Each decontamination module 1 is independent yet can be quickly assembled via standardized interfaces. The site adaptation module 2 is pre-embedded or installed on the basketball or tennis court surface to identify site coordinates and support module positioning. The pipeline connection module 3 connects external water sources to the shower heads of each decontamination module 1 via quick-connect couplings. The gradient drainage module 4 utilizes the natural slope of the ground or artificially created stepped elevation differences to form sewage diversion channels. The auxiliary operation module 5 enables rapid module transport via forklift transport interfaces and pallet jack wheel tracks. The five modules work collaboratively to achieve the technical effect of normal use as a public sports field during peacetime and rapid conversion into a large-scale NBC decontamination site in emergencies.

[0025] Furthermore, the disinfection module 1 includes a foldable frame unit 11, a shower operation unit 12, and a sealed waterproof unit 13; The foldable frame unit 11 is used to provide lightweight and high-strength structural support and to realize the conversion between unfolded and folded states; The shower operation unit 12 is used to provide a warm water disinfection environment and temporary storage for shower equipment; The sealed and waterproof unit 13 is used to prevent decontamination wastewater from leaking from the bottom of the module into the external environment.

[0026] In this embodiment, the disinfection module 1 includes a foldable frame unit 11, a shower operation unit 12, and a sealed waterproof unit 13. The foldable frame unit 11 is made of aluminum or carbon fiber, with unfolded dimensions of 1600mm (length) × 1100mm (width) × 1800mm (height) and folded dimensions of 1600mm (length) × 1100mm (width) × 300mm (height). The aluminum module weighs 69kg, and the carbon fiber module weighs no more than 35kg. The frame structure uses hinges to fold the side panels, and the folded height is only 1 / 6 of the unfolded height. The shower operation unit 12 includes a shower head on the top of the module, a water inlet pipe interface, and a shower head storage device on the side wall. The shower head is connected to the water inlet pipe via a hose, providing warm water disinfection. The shower head storage device is used to secure the shower head when not in use. The sealing and waterproofing unit 13 includes a flap waterproofing structure set at the bottom of the module. The flap is connected to the bottom edge of the frame by a hinge. When unfolded, the flap flips down and fits tightly against the ground to form an annular sealing barrier to prevent decontamination wastewater from leaking from the bottom of the module to the external environment. When retracted, the flap folds up and is parallel to the side plate.

[0027] Furthermore, the site adaptation module 2 includes a site identification unit 21, a ground adaptation unit 22, and a function conversion unit 23; The site identification unit 21 is used to arrange coordinate positioning marks on the surface of the public sports field using the pre-set decontamination module 1. The ground adaptation unit 22 is used to adapt to the elevation difference of the site steps and to construct an inclined guide surface to guide the directional flow of sewage. The function switching unit 23 is used to control the switching of the venue between normal sports functions and emergency decontamination functions according to the emergency response level.

[0028] In this embodiment, the site adaptation module 2 includes a site identification unit 21, a ground adaptation unit 22, and a function conversion unit 23. The site identification unit 21 includes pre-sprayed or pre-embedded positioning marks on the basketball or tennis court surface. These markings are arranged in a 13-row, 8-column grid to indicate the precise placement of each decontamination module 1, ensuring rapid and accurate module positioning. The ground adaptation unit 22 includes a leveling support structure (such as adjustable legs) at the bottom of the decontamination module 1 and an inclined guide surface constructed on the site surface. The inclined guide surface utilizes the existing step height difference or artificially laid slope to form an inclination angle of 2°-5° to guide the directional flow of wastewater. The function conversion unit 23 includes an emergency command platform communication interface and a site status monitoring device. Under normal conditions, the monitoring device detects that the site is used for basketball or tennis. In an emergency, based on the response level signal issued by the command platform (such as Level I, Level II, or Level III nuclear, biological, and chemical accident response), the site function switching process is initiated, controlling the removal of sports facilities and the deployment of the decontamination modules 1.

[0029] Furthermore, the pipeline connection module 3 includes a water supply connection unit 31, a shower head connection unit 32, and a residual water management unit 33; The water supply connection unit 31 is used to introduce external water sources into the decontamination area through a standardized water hose roll; The shower head docking unit 32 is used to achieve a quick plug-in sealed connection between the shower head and the water supply pipe; The residual water management unit 33 is used to drain residual water from the pipeline and module after the operation is completed.

[0030] In this embodiment, the pipeline connection module 3 includes a water supply connection unit 31, a shower head docking unit 32, and a residual water management unit 33. The water supply connection unit 31 consists of 14 rolls of standardized water hose. The water hose rolls are connected to an external water source (such as a fire truck, municipal water supply network, or mobile water tank) through a forklift transport interface located at the bottom of the decontamination module 1. The water hose is laid in the longitudinal channel of the module array, and water is distributed to each row of decontamination modules 1 through a water distributor. The shower head docking unit 32 adopts a plug-in quick-sealing connector. The male connector is fixed to the end of the water supply pipe, and the female connector is fixed to the shower head inlet pipe. The two are quickly connected through a snap-fit ​​structure. The connector is equipped with a rubber sealing ring to ensure sealing under a water pressure of 0.2-0.4MPa. The residual water management unit 33 includes a drain valve and a drain hose interface located at the lowest point of the module. After the operation is completed, the drain valve is opened to completely drain the residual water in the water pipe, shower head and module bottom plate by taking advantage of the slope of the ground and the slope of the water collection tray inside the module, so as to prevent the internal water from corroding the equipment after it is closed.

[0031] Furthermore, the gradient drainage module 4 includes a flow guiding unit 41, a water collection unit 42, and an overflow prevention unit 43; The diversion unit 41 is used to guide sewage from the washing and disinfection site to the collection point by utilizing the elevation difference of the ground slope. The water collection unit 42 is used to collect wastewater discharged from multiple modules along the module arrangement direction; The overflow prevention unit 43 is used to prevent sewage from overflowing and to block backflow pollution through the flap waterproof structure.

[0032] In this embodiment, the gradient drainage module 4 includes a flow guiding unit 41, a water collection unit 42, and an overflow prevention unit 43. The flow guiding unit 41 utilizes the inclined flow guiding surface constructed by the ground adaptation unit 22, combined with the stepped height difference (50-100mm) between adjacent decontamination modules 1, to guide the decontamination wastewater in a single module from high to low to the collection point. The water collection unit 42 includes a water collection ditch extending longitudinally along 13 rows of modules. The ditch is located on the lower side of each row of modules, and the ditch cross-section is U-shaped or V-shaped, used to collect the wastewater discharged from 208 decontamination positions. The end of the ditch is connected to the main drain pipe. The anti-overflow unit 43 includes a flap waterproof structure set around the bottom plate of the decontamination module 1 and an anti-backflow baffle set at the drainage outlet of the water collection ditch. The flap waterproof structure is tightly attached to the ground by a rubber sealing strip to form the first line of defense. The anti-backflow baffle is installed by a hinge and closes by gravity when the sewage level is below the threshold and automatically opens to drain when the level is above the threshold, preventing external sewage from backflowing and contaminating the decontamination area.

[0033] Furthermore, the auxiliary operation module 5 includes a transportation interface unit 51, a positioning and arrangement unit 52, and a storage management unit 53; The transport interface unit 51 is used to provide a forklift loading and unloading interface and a jack tractor wheel rail to realize the batch transfer of modules. The positioning and arrangement unit 52 is used to quickly position the decontamination module 1 to a preset coordinate according to an array layout of 13 rows and 8 columns; The storage management unit 53 is used to realize the stable stacking and centralized storage management of multi-layer modules in the collapsed state.

[0034] In this embodiment, the auxiliary operation module 5 includes a transportation interface unit 51, a positioning and arrangement unit 52, and a storage management unit 53. The transportation interface unit 51 includes forklift fork holes located at the four corners of the bottom frame of the decontamination module 1 and pallet jack trailer wheel rails located on the bottom surface in the folded state (the wheel rail spacing matches that of a standard pallet jack trailer), enabling one pallet jack trailer to transport four folded modules simultaneously, completing the transfer of 208 modules in 54 trips. The positioning and arrangement unit 52 includes module positioning pins corresponding to the site marking unit 21 and an array alignment device. Following a 13-row, 8-column array layout, each module is positioned in the XY plane by inserting the positioning pin into a pre-set hole in the ground, and the alignment device ensures consistent spacing between adjacent modules. The storage management unit 53 includes stacking positioning grooves located at the four corners of the top of the module and stacking positioning protrusions at the four corners of the bottom. In the folded state, multiple modules can be stably stacked through the interlocking grooves and protrusions, with a stacking height of 4-6 layers. Combined with the pallet jack trailer, this allows for dense storage within the warehouse, with storage space controlled within 114 cubic meters.

[0035] Please see Figure 7Secondly, a decontamination method for a nuclear, biological, and chemical (NBC) decontamination site, used in the NBC decontamination site described in the first aspect, includes the following steps: After receiving a report of a nuclear, biological and chemical accident, S1 determined the scale of decontamination according to the emergency plan and used forklifts or pallet jacks to transport the decontamination module 1 to a public sports venue. Specifically, after receiving information about a nuclear, biological, and chemical accident, the emergency command center assesses and determines the required number of decontamination modules 1 (e.g., 104 modules providing 416 decontamination positions) based on the accident level (e.g., Level I, Level II, Level III) and the number of contaminated personnel, and activates the corresponding level of emergency plan. Transport vehicles equipped with forklifts and pallet jacks are dispatched to the module storage warehouse. The decontamination modules 1 (dimensions 1600mm × 1100mm × 300mm, weight 69kg aluminum or carbon fiber) are then folded up using the forklift forks at the four corners of the module's bottom frame. The modules (with a material weight ≤35Kg) are loaded onto transport vehicles or placed directly on pallet jack trailers (one pallet jack trailer can carry 4 folding modules at the same time, with a total volume of 1.6m×1.1m×1.2m and a total weight of 120-276kg); the modules are transported to the edge of public sports venues (such as basketball courts or tennis courts) according to the planned route, and the modules are transferred in batches to the designated unloading point inside the venue by pallet jack trailers, completing 54 transport operations (calculated based on 208 modules). The modules are kept in a folded state during transportation to ensure stability.

[0036] S2 arranges the decontamination module 1 in an array of 13 rows and 8 columns according to the site positioning marks, forming a decontamination area containing multiple decontamination positions; Specifically, the operator identifies the installation coordinates of each module based on the pre-sprayed or pre-embedded positioning marks on the basketball or tennis court surface (set according to a grid coordinate system of 13 rows and 8 columns), and moves the folded decontamination module 1 to the corresponding coordinate point; releases the module locking mechanism, and unfolds the side plate upwards through the hinge, expanding the module from a folded height of 300mm to an unfolded height of 1800mm, with unfolded dimensions of 1600mm (length) × 1100mm (width) × 1800mm (height); and utilizes the leveling support structure at the bottom of the module ( Adjustable outriggers adapt to the elevation difference of the site steps (50-100mm) to ensure that the module base plate is level; 104 decontamination modules are arranged in an array layout of 13 rows and 8 columns, with 8 modules in each row, for a total of 13 rows. Each module provides 2 decontamination positions (1 on the left and 1 on the right), forming a large-scale decontamination area with 208 decontamination positions (416 decontamination positions in total on the left and right sides). Adjacent modules are aligned through standardized interfaces and the array alignment device ensures consistency of 1.6m horizontal spacing and 1.1m vertical spacing.

[0037] S3 lays water pipes to connect to the water source, installs shower heads through quick docking units, and establishes a drainage path for gradient drainage module 4. Specifically, 14 rolls of standardized water hose are laid along the longitudinal channel of the modular array. One end is connected to an external water source (such as a fire truck, municipal water supply network, or mobile water tank) through a water distributor installed at the forklift transport interface, and the other end extends to the water inlet of each row of decontamination modules 1. The water hose is distributed to each decontamination module 1 using the water inlet connection unit 31. The shower head inlet female connector is snapped to the water inlet male connector at the end of the water inlet pipe through the shower head quick docking unit (plug-in sealing joint with internal rubber sealing ring) to achieve a sealed connection under a pressure of 0.2-0.4MPa. The shower head is then fixed to the shower head storage device or used by hand. Water collection trenches (with U-shaped or V-shaped cross-sections) are set at the lowest point of the module bottom and along the longitudinal extension direction of the 13 rows of modules on the low side of the array. The inclined guide surface of the ground (2°-5° inclination angle) is used to construct a drainage path from the high point of each decontamination position to the low point of the water collection point. The end of the water collection trench is connected to the main drain pipe or sewage collection tank to form a complete gradient drainage system to ensure that sewage is collected in a directional manner and does not overflow.

[0038] S4 activates the warm water system, guiding personnel to their designated disinfection stations. The system utilizes a flip-up waterproof structure and a sloping ground to achieve tiered disinfection and wastewater collection. Specifically, the warm water heating system (such as a boiler or water heater) is activated to adjust the water temperature to a suitable level (e.g., 25-35℃). The warm water is then delivered to the showerheads of each disinfection module 1 through the water supply network. Contaminated personnel are guided from one end of the array to the corresponding disinfection station (each module provides two disinfection stations on the left and right) in the direction from heavily contaminated to lightly contaminated areas, and undergo shower disinfection. During the disinfection process, a flip-plate waterproof structure (connected to the bottom edge of the frame via hinges, which flips down and fits tightly against the ground to form a ring-shaped sealing barrier) located at the bottom of the module is used to prevent sewage from leaking from the bottom of the module to the external environment. At the same time, the ground tilt height difference (50-100mm step height difference combined with a 2°-5° tilt angle) constructed by the ground adapter unit 22 is used to guide the sewage generated during disinfection from a single disinfection station to an adjacent collection ditch. The anti-backflow structure (liquid level control baffle) prevents sewage from flowing back, allowing the sewage to be collected and discharged into the main drain pipe, achieving simultaneous collection and treatment of the stepped disinfection operation and sewage, thus avoiding secondary pollution.

[0039] After the S5 disinfection is completed, the pipelines are removed, the residual water is drained, the modules are folded up and moved back to the warehouse, and the site is restored to sports use.

[0040] Specifically, after all personnel have finished disinfecting, loosen the clips and disconnect the quick-connect fittings between the shower head and the water supply pipe, returning the shower head to its storage location; reel in 14 rolls of standardized hose and count and collect them; open the drain valve of the residual water management unit 33 located at the lowest point of the module, utilizing the slope of the ground and the slope of the water collection tray inside the module to completely drain the residual water from the water supply pipe, shower head, and module bottom plate into the water collection groove, preventing internal water accumulation from corroding the equipment after folding; release the locking of the module hinges, fold the side panels downwards to fold the module back to its original height of 1800mm. When the module is folded to a height of 300mm, the waterproof flip-up structure folds upwards parallel to the side panels. The folded modules are then loaded onto pallet trucks (4 modules per truck) via pallet jack rails or loaded onto trucks using forklift forks. The modules are transported back to the designated warehouse in 54 trips (based on 208 modules). The modules are then stably stacked 4-6 layers using stacking positioning components (top grooves and bottom bosses), with the storage space controlled within 114 cubic meters. Finally, the site positioning marks are cleaned, the drainage ditches are removed, and the sports facilities of the basketball or tennis court are restored, allowing the site to return to its daily sports use.

[0041] The above description is merely a preferred embodiment of the nuclear, biological, and chemical decontamination site and method of the present invention, and should not be construed as limiting the scope of the present invention. Those skilled in the art can understand that implementing all or part of the above embodiments and making equivalent changes in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. A NBC decontamination site, characterized in that, It includes multiple decontamination modules, site adaptation modules, pipeline connection modules, gradient drainage modules, and auxiliary operation modules; The decontamination module is used to provide a space for large-scale decontamination operations; The site adaptation module is used to enable seamless switching of functions between normal and emergency states for public sports venues; The pipeline connection module is used to quickly provide decontamination water to each decontamination module and ensure the pipeline is sealed. The gradient drainage module is used to collect decontamination wastewater and prevent overflow; The auxiliary operation module is used to realize the rapid positioning, transportation and storage management of the module.

2. The nuclear, biological, and chemical decontamination site as described in claim 1, characterized in that, The disinfection module includes a foldable frame unit, a shower operation unit, and a sealed waterproof unit; The foldable frame unit is used to provide lightweight and high-strength structural support and to realize the conversion between unfolded and folded states; The shower operation unit is used to provide a warm water disinfection environment and temporary storage for shower equipment; The sealed and waterproof unit is used to prevent decontamination wastewater from leaking from the bottom of the module into the external environment.

3. The nuclear, biological, and chemical decontamination site as described in claim 1, characterized in that, The site adaptation module includes a site identification unit, a ground adaptation unit, and a function conversion unit; The site identification unit is used to pre-arrange coordinate positioning marks for the decontamination module on the surface of public sports venues. The ground adaptation unit is used to adapt to the elevation differences of the site and to construct an inclined guide surface to guide the directional flow of sewage. The function switching unit is used to control the switching of the venue between normal sports functions and emergency decontamination functions according to the emergency response level.

4. The nuclear, biological, and chemical decontamination site as described in claim 1, characterized in that, The pipeline connection module includes a water supply connection unit, a shower head connection unit, and a residual water management unit; The water supply connection unit is used to introduce external water sources into the decontamination area through a standardized water hose reel; The shower head docking unit is used to achieve a quick plug-in sealed connection between the shower head and the water supply pipe; The residual water management unit is used to drain residual water from the pipeline and module after the operation is completed.

5. The nuclear, biological, and chemical decontamination site as described in claim 1, characterized in that, The gradient drainage module includes a flow guiding unit, a water collection unit, and an overflow prevention unit; The diversion unit is used to guide sewage from the washing and disinfection site to the collection point by utilizing the elevation difference of the ground slope; The water collection unit is used to collect wastewater discharged from multiple modules along the module arrangement direction; The overflow prevention unit is used to prevent sewage from overflowing and to block backflow pollution through a flap-type waterproof structure.

6. The nuclear, biological, and chemical decontamination site as described in claim 1, characterized in that, The auxiliary operation module includes a transportation interface unit, a positioning and layout unit, and a storage management unit; The transport interface unit is used to provide forklift loading and unloading interfaces and ox tractor wheel rails to realize the batch transfer of modules. The positioning and arrangement unit is used to quickly position the decontamination module to a preset coordinate according to an array layout of 13 rows and 8 columns; The storage management unit is used to achieve stable stacking and centralized storage management of multi-layer modules in the collapsed state.

7. A decontamination method for a nuclear-biochemical decontamination site for use in the nuclear-biochemical decontamination site according to any one of claims 1 to 6, characterized in that, Includes the following steps: Upon receiving a report of a nuclear, biological, and chemical accident, the scale of decontamination is determined according to the emergency plan, and decontamination modules are transported to public sports venues using forklifts or pallet jacks. The decontamination modules are arranged in an array of 13 rows and 8 columns according to the site location markers, forming a decontamination area with multiple decontamination positions. Lay water pipes to connect to the water source, install shower heads through quick-connect units, and establish drainage channels for the gradient drainage module. Turn on the warm water system and guide the people to be disinfected to the corresponding disinfection positions. Use the flip-up waterproof structure and the inclined ground to achieve stepped disinfection and sewage collection. After disinfection, the pipelines were removed, residual water was drained, the modules were folded up and moved back to the warehouse, and the site was restored to its sports use.

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