Positive-pressure biological protective clothing disinfection device and method

Abstract

The invention discloses a positive-pressure biological protective clothing disinfection device and method, and relates to the field of disinfection devices. Comprising a disinfection box body, the interior of the disinfection box body is used for containing the positive-pressure biological protective clothing, and the internal space of the disinfection box body can contain the positive-pressure biological protective clothing which is inflated and stretched; the gasification disinfector is communicated with the interior of the disinfection box body through a circulating pipeline, and a gaseous disinfectant can be introduced into the disinfection box body; the disinfectant internal circulation system is arranged in the disinfection box body, is communicated with an air inlet of the positive-pressure biological protective clothing through an air supply pipe, and can introduce a gaseous disinfectant in the disinfection box body into the positive-pressure biological protective clothing and discharge the gaseous disinfectant into the disinfection box body again through an air outlet of the positive-pressure biological protective clothing; and the disinfectant internal circulation system can regulate and control the internal pressure of the positive-pressure biological protective clothing, so that the positive-pressure biological protective clothing is kept in an inflation stretching state in the sterilization process. According to the positive-pressure biological protective clothing disinfection device and method provided by the invention, the positive-pressure biological protective clothing can be sterilized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of disinfection devices, in particular to a positive pressure biological protective clothing disinfection device and method. BACKGROUND

[0002] The positive pressure biological protective clothing is a full-body protective equipment which blocks the invasion of pathogens by keeping the internal pressure higher than the external environment. When the personnel leave the laboratory, the positive pressure biological protective clothing needs to be disinfected. At present, the chemical shower device is generally used to disinfect the outer surface of the positive pressure biological protective clothing, which cannot achieve the sterilization level, or the manual spraying method is used to disinfect the outer surface of the positive pressure biological protective clothing. The existing manual spraying or chemical shower device spraying method is to disinfect the outer surface of the positive pressure biological protective clothing when the personnel wear the positive pressure biological protective clothing. Due to incomplete disinfection, when the positive pressure biological protective clothing is taken off or damaged, the inner surface of the positive pressure clothing is contaminated, causing the risk of microbial survival and spread, and failing to achieve the sterilization effect of the positive pressure protective clothing.

[0003] Therefore, it is urgent to design a technical scheme which can sterilize the positive pressure biological protective clothing. SUMMARY

[0004] The purpose of the present application is to provide a positive pressure biological protective clothing disinfection device and method to solve the problems existing in the prior art and to sterilize the positive pressure biological protective clothing.

[0005] To achieve the above purpose, the present application provides the following scheme:

[0006] The present application provides a positive pressure biological protective clothing disinfection device, which comprises:

[0007] A disinfection box body is used to place the positive pressure biological protective clothing, and the internal space of the disinfection box body can accommodate the positive pressure biological protective clothing after inflation and stretching.

[0008] A gasification disinfection device is communicated with the inside of the disinfection box body through a circulating pipeline, and can introduce gaseous disinfectant into the disinfection box body.

[0009] A disinfectant internal circulation system is arranged in the disinfection box body, which is communicated with the air inlet of the positive pressure biological protective clothing through a gas supply pipe, can introduce the gaseous disinfectant in the disinfection box body into the positive pressure biological protective clothing, and discharge it back to the disinfection box body through the air outlet of the positive pressure biological protective clothing. The disinfectant internal circulation system can regulate and control the internal pressure of the positive pressure biological protective clothing, so that the positive pressure biological protective clothing can maintain the inflation and stretching state during sterilization.

[0010] Preferably, a cabinet purifying device is further included, which is in communication with the air inlet and the air outlet of the sterilization cabinet through pipelines, and can introduce purified air into the sterilization cabinet to purify the air inside the sterilization cabinet after sterilization.

[0011] Preferably, the cabinet purifying device includes a supply pipeline and an exhaust pipeline, one end of the supply pipeline is in communication with the air inlet, and the other end is in communication with the outside, and a supply airtight valve is arranged on the supply pipeline; one end of the exhaust pipeline is in communication with the air outlet, and the other end is connected with an exhaust fan, and an exhaust airtight valve is arranged on the exhaust pipeline.

[0012] Preferably, a supply filter is arranged on the supply pipeline to filter the air entering the sterilization cabinet; and an exhaust filter is arranged on the exhaust pipeline to filter the gaseous sterilizing agent discharged from the sterilization cabinet.

[0013] Preferably, one side of the sterilization cabinet is provided with an opening, and an airtight door is connected to the opening, and the airtight door can take / put the positive pressure biological protective clothing in the sterilization cabinet through the opening after being opened, and the opening can be sealed after the airtight door is closed.

[0014] Preferably, the gasification sterilizer can convert the liquid sterilizing agent into a gaseous state, the circulation pipeline includes a filling pipe and a backflow pipe; the sterilization cabinet is provided with a filling port and a circulation port, and the filling port and the circulation port are located on the side of the sterilization cabinet, the filling port is in communication with the gas outlet end of the gasification sterilizer through the filling pipe, and the circulation port is in communication with the circulation port of the gasification sterilizer through the backflow pipe; control valves are arranged on the filling port and the circulation port.

[0015] Preferably, the sterilizing agent internal circulation system includes a sterilizing agent circulating pump arranged in the sterilization cabinet, the air inlet of the sterilizing agent circulating pump is in communication with the inside of the sterilization cabinet, the air outlet of the sterilizing agent circulating pump is in communication with the air inlet of the positive pressure biological protective clothing through the air supply pipe, and a pressure sensor is arranged at the air outlet of the sterilizing agent circulating pump.

[0016] Preferably, the inside of the sterilization cabinet is provided with a temperature sensor, a humidity sensor and a sterilizing agent concentration sensor, the temperature sensor, the humidity sensor and the sterilizing agent concentration sensor are signal connected with a controller, and the controller is electrically connected with the cabinet purifying device, the gasification sterilizer and the sterilizing agent internal circulation system.

[0017] Preferably, the sterilizing agent is hydrogen peroxide or chlorine dioxide, which is a commonly used sterilizing agent in biological laboratories.

[0018] The application also provides a sterilization method based on the positive pressure biological protective clothing sterilization device.

[0019] Placing the positive pressure biological protective clothing in the sterilization box, and closing the air-tight door, the air supply airtight valve and the air exhaust airtight valve of the box purifier;

[0020] Starting the gasification sterilizer to convert the liquid sterilizing agent into gaseous sterilizing agent, and injecting the gaseous sterilizing agent into the sterilization box through the circulating pipeline;

[0021] Starting the sterilizing agent internal circulation system to pass the gaseous sterilizing agent in the sterilization box into the positive pressure biological protective clothing through the air supply pipeline, and re-discharging the gaseous sterilizing agent into the sterilization box through the air exhaust port of the positive pressure biological protective clothing, and adjusting the internal pressure of the positive pressure biological protective clothing to keep the positive pressure biological protective clothing in an inflated and stretched state during the sterilization process;

[0022] After the sterilization is completed, closing the gasification sterilizer, starting the box purifier to pass the purified air into the sterilization box to discharge the gaseous sterilizing agent in the sterilization box through the air outlet.

[0023] The present application has the following technical effects compared with the prior art:

[0024] The present application sets the positive pressure biological protective clothing in the sterilization box, and automatically fills the gaseous sterilizing agent (such as gaseous hydrogen peroxide) into the outer surface of the positive pressure biological protective clothing in the sterilization box through the gaseous sterilizer; starting the sterilizing agent internal circulation system to pass the gaseous sterilizing agent in the sterilization box into the positive pressure biological protective clothing through the air supply pipeline, and re-discharging the gaseous sterilizing agent into the sterilization box through the air exhaust port of the positive pressure biological protective clothing to realize the sterilization treatment of the interior of the positive pressure biological protective clothing. Adjusting the internal pressure of the positive pressure biological protective clothing through the sterilizing agent internal circulation system to keep the positive pressure biological protective clothing in an inflated and stretched state during the sterilization process, so that there is no wrinkle area in the positive pressure protective clothing, so as to achieve the comprehensive and thorough sterilization of the positive pressure biological protective clothing. The present application automatically completes the sterilization and purification of the positive pressure biological protective clothing, greatly reducing the workload of laboratory personnel and reducing the cost. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0026] Figure 1 It is a structure schematic diagram of the positive pressure biological protective clothing sterilization device in one or some embodiments of the present application;

[0027] Figure 2The structure diagram of the disinfectant internal circulation system of the positive pressure biological protection clothing disinfection device in one or some embodiments of the present application.

[0028] In the figure: 1-airtight door, 2-controller, 3-air supply pipe, 4-regulating valve, 5-air inlet, 6-positive pressure biological protection clothing, 7-disinfectant internal circulation system, 8-air outlet, 9-air inlet, 10-air outlet, 11-exhaust filter, 12-exhaust air tight valve, 13-air supply air tight valve, 14-air supply filter, 15-disinfectant filling control valve, 16-disinfectant circulation control valve, 17-exhaust plug, 18-air inlet hole, 19-pressure sensor, 20-disinfectant circulation pump, 21-gasification disinfecting device, 22-disinfecting box, 23-temperature sensor, 24-humidity sensor, 25-disinfectant concentration sensor, 26-exhaust fan. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0030] The present application aims to provide a positive pressure biological protection clothing disinfection device and method to solve the problems in the prior art and to sterilize the positive pressure biological protection clothing.

[0031] To make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0032] The existing manual spraying or chemical shower device spraying method is to disinfect the outer surface of the positive pressure biological protection clothing when the personnel wear the positive pressure biological protection clothing. Since the disinfection is not thorough, when the positive pressure biological protection clothing is taken off or damaged, the inner surface of the positive pressure clothing is contaminated, it is difficult to disinfect the inner surface of the positive pressure biological protection clothing, which causes the risk of microbial survival and spread, and cannot achieve the sterilization effect of the positive pressure protection clothing. In order to solve this problem, the present application provides a positive pressure biological protection clothing disinfection device, which is referred to as Figure 1 and Figure 2As shown, the disinfection box 22 is provided for placing the positive pressure biological protective clothing 6, and the internal volume of the disinfection box 22 satisfies the space requirement of the fully unfolded positive pressure biological protective clothing 6 after inflation. In an embodiment, the disinfection box 22 is provided with an opening, and the opening is connected with an air-tight door 1. The air-tight door 1 can be opened to take or place the positive pressure biological protective clothing 6 in the disinfection box 22 through the opening. After the air-tight door 1 is closed, the opening can be sealed. After the air-tight door 1 and other pipeline passages of the disinfection box 22 are closed, if the air pressure is maintained at 500 Pa, the air leakage in the disinfection box 22 per minute should not exceed 0.2% of the net volume of the disinfection box 22. The material of the disinfection box 22 in the embodiment is a chemical disinfectant corrosion resistant material such as stainless steel. The air-tight door 1 is not allowed to be opened during the sterilization process. The gaseous disinfectant generator 21 is connected with the inside of the disinfection box 22 through a circulating pipeline, and can introduce gaseous disinfectant into the disinfection box 22. The disinfectant internal circulation system 7 is arranged in the disinfection box 22, and is connected with the gas inlet 5 of the positive pressure biological protective clothing 6 through the gas supply pipe 3. The gaseous disinfectant in the disinfection box 22 can be introduced into the positive pressure biological protective clothing 6, and then discharged into the disinfection box 22 through the gas outlet 10 of the positive pressure biological protective clothing 6. The positive pressure biological protective clothing 6 is arranged in the disinfection box 22, and the gaseous disinfectant (such as gaseous hydrogen peroxide) can be automatically filled into the outer surface of the positive pressure biological protective clothing 6 in the disinfection box 22 through the gaseous disinfectant generator. The disinfectant internal circulation system 7 is started, the gaseous disinfectant in the disinfection box 22 is introduced into the positive pressure biological protective clothing 6 through the gas supply pipe 3, and then discharged into the disinfection box 22 through the gas outlet 10 of the positive pressure biological protective clothing 6, so as to realize the disinfection of the inside of the positive pressure biological protective clothing 6.

[0033] The positive pressure biological protective clothing 6 has a flexible structure, and wrinkles are easily generated, so that the disinfection cannot be comprehensive, manual spraying disinfection is required at the wrinkle positions, which is time-consuming and laborious. When the number of wrinkles is too large, the disinfection process is easily missed, and the disinfection is not complete. In order to solve this problem, in an embodiment, the disinfectant internal circulation system 7 can regulate the internal pressure of the positive pressure biological protective clothing 6, so that the positive pressure biological protective clothing 6 can be kept in an inflated and stretched state during the sterilization process. The disinfectant internal circulation system 7 regulates the internal pressure of the positive pressure biological protective clothing 6, so that the positive pressure biological protective clothing 6 can be kept in an inflated and stretched state during the sterilization process, so that there is no wrinkle area in the positive pressure protective clothing, so as to achieve comprehensive and complete sterilization of the positive pressure biological protective clothing 6. The sterilization and purification of the positive pressure biological protective clothing 6 are automatically completed, which greatly reduces the workload of laboratory personnel and reduces the cost.

[0034] In one embodiment, a box purification device is designed outside the sterilization box 22, which is communicated with the air inlet 9 and the air outlet 8 of the sterilization box 22 through pipelines, and can introduce purified air into the sterilization box 22 to purify the interior of the sterilization box 22 after sterilization. In order to avoid the interference of the box purification device with the sterilization process in the interior of the sterilization box 22, in this embodiment, the box purification device is provided with a supply air pipeline and an exhaust pipeline. One end of the supply air pipeline is communicated with the air inlet 9, and the other end is communicated with the outside world. The supply air pipeline is provided with a supply air airtight valve 13. One end of the exhaust pipeline is communicated with the air outlet 8, and the other end is connected with an exhaust fan 26. The exhaust pipeline is provided with an exhaust airtight valve 12. When the positive pressure biological protective clothing 6 is sterilized, the supply air airtight valve 13 and the exhaust airtight valve 12 are closed, so that a closed space is formed in the sterilization box 22. After sterilization, the supply air airtight valve 13 and the exhaust airtight valve 12 are opened, clean air is introduced into the sterilization box 22, and the residual sterilizing agent in the sterilization box 22 is replaced out, so as to realize the purification of the interior of the sterilization box 22.

[0035] In order to ensure that no new pollution source is introduced during the purification process, the supply air pipeline of this embodiment is provided with a supply air filter 14. The supply air filter 14 adopts an air filter in the prior art, which can filter the air entering the sterilization box 22 and eliminate bacteria in the air. In order to avoid the pollution of the environment by the residual sterilizing agent in the sterilization box 22, the exhaust pipeline of this embodiment is provided with an exhaust filter 11 to filter and decompose the gaseous sterilizing agent discharged from the sterilization box 22. The exhaust filter 11 adopts a device in the prior art, which is provided with an adsorbent such as activated carbon and a chemical reagent in the prior art, which can adsorb and decompose the sterilizing agent to avoid pollution of the environment. In other embodiments, the supply air outlet and the exhaust outlet can be directly connected to the supply and exhaust system of the laboratory, and do not need to be provided with separate filters, airtight valves and exhaust fans 26.

[0036] The gasification sterilizer 21 of the present embodiment can convert the liquid sterilizing agent into gas, and the gasification sterilizer 21 is a prior art, for example, a gasification hydrogen peroxide sterilizer can be used, which is a low-temperature sterilization device using gaseous hydrogen peroxide as the sterilization medium, in addition to this, other gasification sterilizers 21 such as chlorine dioxide can also be provided. In an embodiment, the gasification sterilizer 21 can be built-in in the sterilization box 22, or an external gasification sterilizer 21 connected to a third party can be used. The present embodiment adopts the scheme of an external gasification sterilizer 21, and the circulation pipeline of the present embodiment includes a filling pipe and a return pipe; the sterilization box 22 is provided with a filling port and a circulation port, and the filling port and the circulation port are located on the side of the sterilization box 22, and the positions of the filling port and the circulation port are set at a relatively far distance, so as to avoid internal airflow short circuit, increase the internal airflow flow distance, and enable the airflow to fully fill the inside of the sterilization box 22; the filling port is communicated with the gas outlet of the gasification sterilizer 21 through the filling pipe, and the circulation port is communicated with the circulation port of the gasification sterilizer 21 through the return pipe; the filling port and the circulation port are respectively connected with the gas outlet and the circulation port of the gasification sterilizer 21 outside the box, so that the gasification sterilizing agent can form a gas flow circulation among the sterilization box 22, the circulation pipeline and the gasification sterilizer 21, and the sterilizing agent in the sterilization box 22 sterilizes the outer surface of the positive pressure biological protection suit 6; the filling port and the circulation port of the present embodiment are both provided with control valves, wherein the filling port is provided with a sterilizing agent filling control valve 15, and the circulation port is provided with a sterilizing agent circulation control valve 16, so as to realize on-off control of the sterilizing agent circulation process.

[0037] In one embodiment, the disinfectant internal circulation system 7 comprises a disinfectant circulation pump 20 arranged in the disinfection box 22, the air inlet hole 18 of the disinfectant circulation pump 20 is in communication with the inside of the disinfection box 22, the air outlet hole of the disinfectant circulation pump 20 is connected with the air supply pipe 3 through the air outlet plug 17, and the air supply pipe 3 is in communication with the air inlet 5 of the positive pressure biological protective clothing 6. A pressure sensor 19 is arranged between the air outlet hole of the disinfectant circulation pump 20 and the air outlet plug 17, so as to realize the adjustment of the gas pressure entering the positive pressure biological protective clothing 6. In the initial stage, the flow rate and flow of the gas entering the positive pressure biological protective clothing 6 are greater than the flow of the gas discharged from the air outlet 10 of the positive pressure biological protective clothing 6, so that the positive pressure biological protective clothing 6 is inflated and stretched out. After the positive pressure biological protective clothing 6 is stretched out, the flow rate and flow of the gas entering the positive pressure biological protective clothing 6 through the air supply pipe 3 are adjusted to be equal to the flow rate and flow of the gas discharged from the air outlet 10 of the positive pressure biological protective clothing 6, so that the positive pressure biological protective clothing 6 is kept in the stretched state. In one embodiment, the air supply pipe 3 is a flexible pipe arranged in a spiral shape, the length of the air supply pipe 3 can be adjusted, one end of the air supply pipe 3 is connected with the air inlet 5 of the positive pressure biological protective clothing 6 through the adjusting valve 4, so as to adjust the flow and flow rate of the gas entering the positive pressure biological protective clothing 6 in cooperation with the disinfectant circulation pump 20. Since the air supply pipe 3 is arranged in a spiral shape and can be elongated, the air supply pipe 3 can be stably connected with the air inlet 5 after the positive pressure biological protective clothing 6 is stretched out. The disinfectant circulation pump 20 in the embodiment is a corrosion-resistant circulation pump, the outlet pressure of the disinfectant circulation pump 20 meets the rated working pressure of the positive pressure biological protective clothing 6, and the complete inflation and unfolding of the positive pressure biological protective clothing 6 are ensured.

[0038] In one embodiment, a plurality of disinfectant internal circulation systems 7 are arranged in the disinfection box 22, or the disinfectant internal circulation system 7 is provided with a plurality of air outlet plugs 17, so as to simultaneously disinfect a plurality of positive pressure biological protective clothing 6 in the disinfection box 22.

[0039] The temperature sensor 23, the humidity sensor 24 and the disinfectant concentration sensor 25 are arranged in the disinfection box 22, the temperature sensor 23, the humidity sensor 24 and the disinfectant concentration sensor 25 are signal-connected with a controller, the controller is electrically connected with the box purification device, the gasification disinfection device 21 and the disinfectant internal circulation system 7; the controller 2 is used to control the start and stop of the device, and provide fault alarm information to the outside. The controller 2 in the embodiment comprises an HMI human-computer interaction device in the prior art, the HMI human-computer interaction device is connected with a computer and other main controllers, can accept operator instructions, automatically execute sterilization and purification processes, and monitor, record and store state data in real time. In the case of abnormal conditions, the controller 2 can timely send fault alarm prompts.

[0040] In one embodiment, the present application also provides a disinfection method of the positive pressure biological protection suit 6 based on the above disinfection device, comprising the following steps:

[0041] The positive pressure biological protection suit 6 is placed in the disinfection box 22, and the air-tight door 1, the air supply airtight valve 13 and the air exhaust airtight valve 12 of the box purification device are closed; the gasification sterilizer 21 is started to convert the liquid disinfectant into gaseous state, and the gaseous disinfectant is injected into the disinfection box 22 through the circulating pipeline; the disinfectant internal circulation system 7 is started, the gaseous disinfectant in the disinfection box 22 is introduced into the positive pressure biological protection suit 6 through the air supply pipe 3, and is discharged into the disinfection box 22 again through the air exhaust port 10 of the positive pressure biological protection suit 6, and the internal pressure of the positive pressure biological protection suit 6 is regulated to keep the positive pressure biological protection suit 6 in the inflated and stretched state during the sterilization process; after the sterilization is completed, the gasification sterilizer 21 is closed, the box purification device is started, and the purified air is introduced into the disinfection box 22 to discharge the gaseous disinfectant in the disinfection box 22 through the air outlet 8, and during the period, the disinfectant internal circulation system 7 continuously works to replace and discharge the residual disinfectant in the positive pressure biological protection suit 6.

[0042] The principles and implementation manners of the present application are described by using specific examples in the present application, and the above embodiment descriptions are only used to help understand the method of the present application and the core idea thereof; meanwhile, for the general technical personnel in the field, according to the idea of the present application, the specific implementation manners and application ranges will be changed. In conclusion, the content of the present specification should not be understood as the limitation of the present application.

Claims

1. A positive pressure biological protective clothing disinfection device, characterized in that: include: A disinfection chamber, wherein a positive pressure biological protective suit is placed inside the disinfection chamber, and the internal space of the disinfection chamber is capable of accommodating the inflated and stretched positive pressure biological protective suit. The vaporization sterilizer is connected to the inside of the sterilization chamber through a circulation pipeline, which can introduce gaseous disinfectant into the sterilization chamber; The disinfectant internal circulation system is installed inside the disinfection chamber and is connected to the air inlet of the positive pressure biological protective suit via an air supply pipe. It can introduce gaseous disinfectant from the disinfection chamber into the positive pressure biological protective suit and discharge it back into the disinfection chamber through the exhaust port of the positive pressure biological protective suit. The disinfectant internal circulation system can regulate the internal pressure of the positive pressure biological protective suit so that the positive pressure biological protective suit remains in an inflated and expanded state during the sterilization process.

2. The positive pressure biological protective clothing disinfection device according to claim 1, characterized in that: It also includes a chamber purification device, which is connected to the air inlet and air outlet of the disinfection chamber through pipelines, and can introduce purified air into the disinfection chamber to purify the air inside the disinfection chamber after disinfection.

3. The positive pressure biological protective clothing disinfection device according to claim 2, characterized in that: The chamber purification device includes an air supply duct and an exhaust duct. One end of the air supply duct is connected to the air inlet, and the other end is connected to the outside. An air supply sealing valve is provided on the air supply duct. One end of the exhaust duct is connected to the air outlet, and the other end is connected to an exhaust fan. An exhaust sealing valve is provided on the exhaust duct.

4. The positive pressure biological protective clothing disinfection device according to claim 3, characterized in that: The air supply duct is equipped with an air supply filter to filter the air entering the disinfection chamber; the exhaust duct is equipped with an exhaust filter to filter the gaseous disinfectant discharged from the disinfection chamber.

5. The positive pressure biological protective clothing disinfection device according to claim 1, characterized in that: The disinfection chamber has an opening on one side, and an airtight door is connected to the opening. When the airtight door is opened, the positive pressure biological protective clothing inside the disinfection chamber can be taken out / placed through the opening. When the airtight door is closed, the opening can be sealed.

6. The positive pressure biological protective clothing disinfection device according to claim 1, characterized in that: The vaporization sterilizer can convert liquid disinfectant into gaseous state. The circulation pipeline includes a filling pipe and a return pipe. The sterilization chamber has a filling port and a circulation port, which are located on the side of the sterilization chamber. The filling port is connected to the gas outlet of the vaporization sterilizer through the filling pipe, and the circulation port is connected to the circulation port of the vaporization sterilizer through the return pipe. Both the filling port and the circulation port are equipped with control valves.

7. The positive pressure biological protective clothing disinfection device according to claim 1, characterized in that: The disinfectant internal circulation system includes a disinfectant circulation pump installed inside the disinfection chamber. The air inlet of the disinfectant circulation pump is connected to the interior of the disinfection chamber, and the air outlet of the disinfectant circulation pump is connected to the air inlet of the positive pressure biological protective suit through the air supply pipe. A pressure sensor is installed at the air outlet of the disinfectant circulation pump.

8. The positive pressure biological protective clothing disinfection device according to claim 2, characterized in that: The disinfection chamber is equipped with a temperature sensor, a humidity sensor, and a disinfectant concentration sensor. The temperature sensor, humidity sensor, and disinfectant concentration sensor are connected to a controller. The controller is electrically connected to the chamber purification device, the vaporization sterilizer, and the disinfectant internal circulation system, respectively.

9. The positive pressure biological protective clothing disinfection device according to claim 1, characterized in that: The disinfectant is hydrogen peroxide or chlorine dioxide.

10. A disinfection method based on the positive pressure biological protective clothing disinfection device according to any one of claims 1 to 9, characterized in that: Includes the following steps: Place the positive pressure biological protective suit inside the disinfection chamber and close the airtight door, the air supply valve and the exhaust valve of the chamber's purification device. Start the vaporization sterilizer to convert the liquid disinfectant into a gaseous state, and then inject the gaseous disinfectant into the sterilization chamber through the circulation pipeline; The disinfectant internal circulation system is activated, and the gaseous disinfectant in the disinfection box is introduced into the positive pressure biological protective suit through the air supply pipe. The disinfectant is then discharged back into the disinfection box through the exhaust port of the positive pressure biological protective suit. The internal pressure of the positive pressure biological protective suit is regulated so that the positive pressure biological protective suit remains in an inflated and stretched state during the sterilization process. Once disinfection is complete, turn off the vaporization sterilizer and start the chamber purification device to introduce purified air into the disinfection chamber so that the gaseous disinfectant inside the chamber can be discharged through the air outlet.

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