Function-switchable sterilization room

Abstract

The utility model relates to a sterilization room with switchable functions, which comprises a room with a containing space, and an inlet and an outlet both communicated with the containing space; the entrance door is used for opening and closing the entrance; the exit door is used for opening and closing the exit; the air conditioning system comprises an air inlet system and an air exhaust system, the air inlet system is provided with an air inlet filter, the air inlet filter is connected to an air outlet of the air inlet system and used for filtering air blown into the containing space by the air inlet system, and the air exhaust system is provided with an air exhaust filter and used for filtering pollution gas blown out of the containing space. The exhaust system and the air inlet system are communicated in a switchable manner; and the sterilization system is used for sterilizing the materials in the accommodating space. According to the sterilization room with the switchable functions, an existing clean area room is transformed into the sterilization room with the VHP sterilization function, the original clean area room function and the VHP sterilization function can be switched, and a user can switch to a corresponding function mode according to a needed use scene.

Description

Technical Field

[0001] The utility model relates to the technical field of aseptic pharmaceutical manufacturing, in particular to a sterilization room with switchable functions. Background Art

[0002] VHP is a chemical sterilization method. Its principle is a sterilization method that converts liquid hydrogen peroxide into gaseous hydrogen peroxide at room temperature. It is a technology that uses the advantage of hydrogen peroxide in gaseous state at room temperature to kill bacterial spores more effectively than in liquid state to achieve complete sterilization requirements. It is commonly used for sterilization in confined spaces such as isolation rooms and isolators.

[0003] In the prior art, VHP sterilization transfer equipment (Vaporized Hydrogen Peroxide, VHP for short) is often used for sterilization. The VHP sterilization transfer equipment has a double-door structure to connect two levels of clean areas. For example, one side of a cabinet door of the VHP sterilization transfer equipment is a Class C clean area, and one side of the other cabinet door is a Class B clean area. The cleanliness of the Class B clean area is higher than that of the Class C clean area. For pharmaceutical companies that produce sterile preparations, in order to ensure that the drugs are not contaminated, all items, tools, packaging materials, etc. that enter the high-level environment from the low-level area must be sterilized before they are allowed to enter. Therefore, the general operating procedure for using VHP sterilization transfer equipment is: open the cabinet door on the side of the low-level area (Grade C clean area), load the items or materials to be sterilized, close the cabinet door, start the VHP sterilization program, and after the sterilization is completed, open the cabinet door on the side of the high-level area (such as Class B clean area), take out the sterilized items or materials for use, thereby realizing the transfer of items or materials from the low-level area (Class C clean area) to the high-level area (such as Class B clean area).

[0004] However, the VHP sterilization transfer equipment in the prior art has the following main disadvantages:

[0005] 1. Currently, VHP sterilization transfer equipment is limited by equipment manufacturing, and its equipment capacity is generally not too large. For large-scale pharmaceutical companies, it is usually necessary to sterilize multiple cabinets continuously to complete the required amount of a batch. According to the conventional sterilization time in the industry, the sterilization time of a VHP sterilization cabinet usually takes 2-4 hours to complete, so the production time and equipment energy consumption consumed are huge.

[0006] 2. The equipment can only perform VHP sterilization and has a single function. It cannot perform other functions. When the VHP sterilization transfer equipment is not used, there is a problem of waste of production space. Utility Model Content

[0007] The purpose of the utility model is to provide a sterilization room with switchable functions, so as to solve at least one of the above technical problems.

[0008] To achieve the above purpose, the utility model provides a sterilization room with switchable functions, comprising:

[0009] A room having a storage space, and an entrance and an exit both connected to the storage space, wherein the exit can be connected to a first-level clean area, and the entrance can be connected to a second-level clean area;

[0010] An entrance door, used to open and close the entrance;

[0011] An exit door, used for opening and closing the exit;

[0012] An air conditioning system, comprising an air intake system and an exhaust system, wherein the air intake system is provided with an air intake filter, the air intake filter is connected to an air outlet of the air intake system, and is used to filter the air blown into the accommodation space by the air intake system, and the exhaust system is provided with an exhaust filter, and is used to filter the polluted gas blown out of the accommodation space, and the exhaust system is switchably connected to the air intake system;

[0013] The sterilization system is used to sterilize the materials in the containing space.

[0014] Optionally, the exhaust system includes a straight exhaust duct, one end of which is connected to an exhaust port of the exhaust system, and the other end of which is connected to the outside world;

[0015] The exhaust system further comprises a return air duct, one end of which is connected to the exhaust port, and the other end of which is connected to the air inlet of the air inlet system.

[0016] Optionally, the exhaust system also includes a direct exhaust valve and a return air valve, the direct exhaust valve is connected to the direct exhaust air duct and is used to control the opening and closing of the direct exhaust air duct, and the return air valve is connected to the return air duct and is used to control the opening and closing of the return air duct.

[0017] Optionally, the air intake system includes an air conditioning unit, a fresh air duct and a fresh air valve, one end of the fresh air duct is connected to the air inlet of the air conditioning unit, and the other end is connected to the outside, and the fresh air valve is connected to the fresh air duct and is used to open and close the fresh air duct;

[0018] The air conditioning unit is switchably connected to the return air duct via the return air valve.

[0019] Optionally, the sterilization system includes a hydrogen peroxide vaporization generator, a sterilization air inlet pipeline and a nozzle which are connected in sequence, the hydrogen peroxide vaporization generator is located outside the accommodation space of the room, and the nozzle is located inside the accommodation space of the room.

[0020] Optionally, the nozzle is provided with a plurality of holes, and at least two of the holes have opening angles different from each other; and / or

[0021] The sterilization system further comprises a sterilization return air duct, one end of which is in communication with the accommodation space of the room, and the other end of which is in communication with the hydrogen peroxide vaporization generator.

[0022] Optionally, the function-switchable sterilization room further comprises a fan disposed in the accommodation space, the fan being used to evenly distribute the sterilization gas in the accommodation space, and / or

[0023] The exhaust filter is connected to the exhaust port.

[0024] Optionally, the function-switchable sterilization room further includes a hydrogen peroxide concentration detection unit, a temperature detection unit and / or a relative humidity detection unit arranged in the accommodating space.

[0025] Optionally, a stainless steel material is attached to the side wall of the room and / or a stainless steel material is attached to the roof of the room;

[0026] The inner wall of the straight exhaust air duct is adhered with stainless steel material, or the straight exhaust air duct is a stainless steel pipe.

[0027] Optionally, the number of the fans is two, and the two fans are respectively arranged at two corners of the accommodating space, and the two corners are arranged diagonally; and / or

[0028] The number of the exhaust vents is two, and the two exhaust vents are respectively arranged at two corners of the accommodating space, and the two corners are arranged diagonally.

[0029] As can be seen from the above, the technical solution provided by the utility model transforms the existing clean area room into a sterilization room with VHP sterilization function. The original clean area room function and the VHP sterilization function can be switched, and the user can switch to the corresponding function mode according to the required usage scenario.

[0030] The room can be an existing clean area room, and based on the air conditioning system of the existing room, the air conditioning system can be improved and transformed into a sterilization room. Users do not need to purchase and install VHP sterilization transfer equipment, saving costs. At the same time, the space occupied by the VHP sterilization transfer equipment is saved, thereby improving the utilization rate of the production space.

[0031] The room has a large storage space, and a large number of materials can be sterilized at one time, saving production time and reducing energy consumption. For example, when there are many materials in the prior art and multiple sterilizations are required, the cumulative working time of sterilization is several times the working time of the sterilization system of the utility model. Therefore, the sterilization system of the utility model can save a lot of electric energy and sterilization gases such as hydrogen peroxide required for sterilization. When sterilization is not performed, the air conditioning system realizes the storage function of the clean area room. At the same time, when realizing the storage function, the air conditioning system can keep the room under positive pressure to the outside, so as to store materials well, and the utilization rate of the room is high, which improves the utilization rate of the production space.

[0032] Specifically, when the material needs to be sterilized, the entrance door is opened and the material is placed in the storage space of the room. The room is switched to the sterilization function. During the sterilization period, the sterilization room operates in the sterilization mode and the residual exhaust mode respectively. First, the sterilization room enters the sterilization mode, that is, the entrance door, the exit door, and the air conditioning system are closed, and the sterilization system is started to sterilize the material. Then, after sterilization, it enters the residual exhaust mode, that is, the exhaust system and the air intake system are started. In order to quickly discharge the residual gas to restore the normal use function, the exhaust system is connected to the outside world, and the air intake system completely uses the fresh air to discharge the air containing sterilizing gases such as hydrogen peroxide in the storage space. At the same time, the air intake system provides clean air to the storage space of the room until the air in the storage space reaches the preset standard. In the residual exhaust mode, on the one hand, the air intake system gradually dilutes the air containing sterilizing gases such as hydrogen peroxide in the storage space, and on the other hand, the air intake system blows clean air into the storage space to make up for the amount of gas in the storage space discharged by the exhaust system and maintain the air pressure in the storage space. Since the air blown into the storage space by the air intake system is filtered by the air intake filter, the air in the storage space can reach the standard of the first-level clean area after the air containing sterilizing gases such as hydrogen peroxide is discharged. When it is necessary to take out materials from the storage space of the room from the side where the first-level clean area is located, open the exit door, take out the materials and complete the sterilization process.

[0033] The room can also be switched to a clean area room with storage function. Specifically, after the residual exhaust mode, close the entrance door, exit door, and sterilization system, start the exhaust system and the air intake system, and connect them, that is, the air intake system uses fresh air and return air to jointly maintain the air pressure in the room. The air intake system can work as needed to keep the air cleanliness, temperature and / or humidity in the room's storage space in line with the requirements, and keep the room under positive external pressure to ensure that the cleanliness in the room meets the cleanliness level of the first-level clean area, so that materials can be stored well. When the sterilization room is operated in the clean area operation mode, the exhaust system and the air intake system can be switched to a mutually connected state, that is, the return air can enter the air conditioning system through the air intake system again, enter the storage space, and realize the internal circulation of the air in the room. Therefore, the energy consumption of the air conditioning system can be reduced, the loss of the air intake filter can be reduced, and the cost can be reduced.

[0034] Of course, the sterilization room can also be operated in clean area operation mode to store materials before entering sterilization mode or if the room is only used to store materials.

[0035] The sterilization room provided in this embodiment is modified to add a sterilization function on the basis of the original air-conditioning system without changing the original purpose of the room, so that pharmaceutical companies do not need to purchase VHP sterilization transfer equipment, and can meet large-scale sterilization needs, perform one-time sterilization, greatly reduce production energy consumption, production time and equipment investment costs, and improve room utilization and sterilization volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the top view of the structure of the sterilization room with switchable functions provided by an embodiment of the utility model;

[0037] Figure 2 It is a front view structural schematic diagram of a sterilization room with switchable functions provided by an embodiment of the utility model;

[0038] Figure 3 It is a structural schematic diagram of a sterilization room with switchable functions provided by an embodiment of the utility model when operating in a clean area operation mode;

[0039] Figure 4 It is a structural schematic diagram of a sterilization room with switchable functions provided by an embodiment of the utility model when operating in a sterilization mode;

[0040] Figure 5 It is a structural schematic diagram of a sterilization room with switchable functions provided by an embodiment of the utility model when operating in a residual discharge mode.

[0041] In the figure:

[0042] 1. Room; 11. Accommodation space;

[0043] 2. Entrance door; 3. Exit door;

[0044] 4. Air conditioning system; 41. Air conditioning unit; 42. Fresh air duct; 43. Fresh air valve; 44. Air inlet filter; 46. Exhaust system; 461. Exhaust port; 462. Direct exhaust valve; 463. Direct exhaust duct; 464. Return air duct; 465. Return air valve; 466. Exhaust filter;

[0045] 7. Sterilization system; 71. Hydrogen oxide vaporization generator; 72. Sterilization air inlet pipeline; 73. Nozzle; 74. Sterilization return air duct; 75. Sterilization air inlet valve; 76. Sterilization return air valve;

[0046] 8. Fan;

[0047] 10. Detector;

[0048] 100, first-level clean area; 200, second-level clean area. DETAILED DESCRIPTION

[0049] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and through specific implementation methods. It is understood that the specific embodiments described herein are only used to explain the utility model, rather than to limit the utility model. It is also necessary to explain that, for the convenience of description, only the parts related to the utility model are shown in the accompanying drawings, rather than all.

[0050] Some directional words are defined in the present utility model. Unless otherwise specified, the directional words used, such as "upper", "lower", "left", "right", "inside" and "outside", are used for ease of understanding and therefore do not constitute limitations on the protection scope of the present utility model.

[0051] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0052] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] The present embodiment provides a sterilization room with switchable functions (hereinafter referred to as sterile room), which is used in sterile pharmaceutical manufacturing, but is not limited thereto and can also be used in other occasions requiring sterilization.

[0054] like Figure 1 and Figure 2As shown, the sterilization room provided in this embodiment includes a room 1, an entrance door 2, an exit door 3, an air-conditioning system 4 and a sterilization system 7, wherein the room 1 has a accommodating space 11, and an entrance and an exit both connected to the accommodating space 11, the exit can be connected to a first-level clean area 100 (exemplarily, the first-level clean area 100 is a Class B clean area), and the entrance can be connected to a second-level clean area 200 (exemplarily, the second-level clean area 200 is a Class C clean area), and the cleanliness of the first-level clean area 100 is higher than that of the second-level clean area 200.

[0055] The entrance door 2 is used to open and close the entrance, and the exit door 3 is used to open and close the exit. The air conditioning system 4 includes an air intake system and an exhaust system 46. The air intake system is provided with an air intake filter 44, which is connected to the air outlet of the air intake system and is used to filter the air blown into the storage space 11 by the air intake system. The exhaust system 46 is provided with an exhaust filter 466, which is used to filter the polluted gas blown out of the storage space 11. The exhaust system 46 is switchably connected to the air intake system, that is, the exhaust system 46 can be connected and disconnected with the air intake system as needed. The sterilization system 7 is used to sterilize the materials in the storage space 11.

[0056] The sterilization room provided in this embodiment transforms the existing clean area room into a sterilization room with VHP sterilization function. The original clean area room function and the VHP sterilization function can be switched, and the user can switch to the corresponding function mode according to the required usage scenario.

[0057] Room 1 can be an existing clean area room, and based on the existing air conditioning system 4 of room 1, the air conditioning system 4 is improved and transformed into a sterilization room. Users do not need to purchase and install VHP sterilization transfer equipment, saving costs. At the same time, the space occupied by the VHP sterilization transfer equipment is saved, thereby improving the utilization rate of the production space.

[0058] The room 1 has a large storage space 11, which can sterilize a large number of materials at one time, saving production time and reducing energy consumption. For example, when there are many materials in the prior art and multiple sterilizations are required, the cumulative working time of sterilization is several times the working time of the sterilization system 7 of the utility model. Therefore, the sterilization system 7 of the utility model can save a lot of electric energy and sterilization gases such as hydrogen peroxide required for sterilization. When sterilization is not performed, the air conditioning system 4 realizes the storage function of the clean area room. At the same time, when realizing the storage function, the air conditioning system 4 can keep the room 1 under positive pressure to the outside, so as to store materials well. The utilization rate of room 1 is high, which improves the utilization rate of production space.

[0059] Specifically, when the material needs to be sterilized, the entrance door 2 is opened, and the material is placed in the storage space 11 of the room 1. The room 1 is switched to the sterilization function. During the sterilization period, the sterilization room operates in the sterilization mode and the residual exhaust mode respectively. First, the sterilization room enters the sterilization mode, that is, the entrance door 2, the exit door 3, and the air conditioning system 4 are closed, and the sterilization system 7 is started to sterilize the material. Then, after sterilization, the residual exhaust mode is entered, that is, the exhaust system 46 and the air intake system are started. In order to quickly discharge the contaminated gas to restore the normal use function, the exhaust system 46 is connected to the outside world, and the air intake system fully utilizes the fresh air to discharge the air containing sterilizing gases such as hydrogen peroxide in the storage space 11. At the same time, the air intake system provides clean air to the storage space 11 of the room 1 until the air in the storage space 11 reaches the preset standard. In the residual exhaust mode, on the one hand, the air intake system gradually exhausts the air containing sterilizing gases such as hydrogen peroxide in the storage space 11, and on the other hand, the air intake system blows clean air into the storage space 11 to make up for the amount of gas in the storage space 11 exhausted by the exhaust system 46, and maintain the air pressure in the storage space 11. Since the air blown into the storage space 11 by the air intake system is filtered by the air intake filter 44, after the air containing sterilizing gases such as hydrogen peroxide is exhausted, the air in the storage space 11 can reach the standard of the first-level clean area 100. When it is necessary to take out materials from the storage space 11 of the room 1 from the side where the first-level clean area 100 is located, the outlet door 3 is opened, and the materials are taken out to complete the sterilization process.

[0060] Room 1 can also be switched to a clean area room with storage function. Specifically, after the residual discharge mode, the entrance door 2, the exit door 3, and the sterilization system 7 are closed, and the exhaust system and the air intake system are started and connected, that is, the air intake system uses fresh air and return air to jointly maintain the room air pressure. The air intake system can work as needed to keep the air cleanliness, temperature and / or humidity in the storage space 11 in the room 1 in line with the requirements, and keep the room 1 under external positive pressure, ensuring that the cleanliness in the room 1 meets the cleanliness of the first-level clean area 100, and storing materials well. When the sterilization room is operated in the clean area operation mode, the exhaust system 46 and the air intake system can be switched to a mutually connected state, that is, the return air can enter the air conditioning system 4 through the air intake system again, enter the storage space 11, and realize the internal circulation of the air in the room 1. Therefore, the energy consumption of the air conditioning system 4 can be reduced, the loss of the air intake filter 44 can be reduced, and the cost can be reduced.

[0061] Of course, before entering the sterilization mode or room 1 is only used to store materials, the sterilization room can also be operated in the general clean area mode to store materials.

[0062] The sterilization room provided in this embodiment is modified on the basis of the original air-conditioning system 4 to add a sterilization function without changing the original purpose of the room 1, so that pharmaceutical companies do not need to purchase VHP sterilization transfer equipment, and can meet large-scale sterilization needs, and can perform one-time sterilization, greatly reducing production energy consumption, production time and equipment investment costs, and improving the utilization rate of room 1 and the sterilization volume.

[0063] Optionally, the entrance door 2 and the exit door 3 can both be inflatable sealed doors, and the specific structure and working principle of the inflatable sealed door are prior art and will not be described in detail here. The inflatable sealed door can ensure that the room 1 is in a closed state, preventing hydrogen peroxide gas leakage from affecting the sterilization concentration and causing safety problems.

[0064] Optionally, the sterilization room may also include a door lock control system, which is electrically connected to both the entrance door 2 and the exit door 3 to control the opening and closing of the entrance door 2 and the opening door to prevent the two clean areas of different levels from being connected, resulting in damage to the clean environment.

[0065] The sterilization system 7 includes a hydrogen peroxide vaporization generator 71, a sterilization air inlet pipeline 72 and a nozzle 73 which are connected in sequence. The hydrogen peroxide vaporization generator 71 is located outside the accommodation space 11 of the room 1 to avoid corrosion by hydrogen peroxide. The nozzle 73 is located inside the accommodation space 11 of the room 1 to spray hydrogen peroxide gas into the accommodation space 11.

[0066] Optionally, the nozzle 73 may be provided with a plurality of holes, and at least two holes may have opening angles of different kinds, so that hydrogen peroxide gas may be sprayed at multiple angles, making the distribution of hydrogen peroxide gas more uniform and further improving the sterilization effect.

[0067] The sterilization system 7 further includes a sterilization return air duct 74, one end of which is connected to the storage space 11 of the room 1, and the other end of which is connected to the hydrogen peroxide vaporizer 71. On the one hand, the sterilization return air duct 74 can maintain a preset pressure in the storage space 11 through the return air; on the other hand, the sterilization return air duct 74 is connected to the hydrogen peroxide vaporizer 71, and the hydrogen peroxide vaporizer 71 can vaporize the hydrogen peroxide in the sterilization return air duct 74 again, thereby avoiding waste of hydrogen peroxide and saving costs.

[0068] Optionally, the sterilization return air duct 74 may be provided with a sterilization return air valve 76 to open and close the sterilization return air duct 74 as required. The sterilization inlet air pipeline 72 may be provided with a sterilization inlet air valve 75 to open and close the sterilization inlet air pipeline 72 as required.

[0069] The sterilization room may further include a fan 8 disposed in the accommodating space 11 , and the fan 8 is used to evenly distribute the sterilization gas in the accommodating space 11 to achieve uniform sterilization.

[0070] Optionally, the number of fans 8 is two, and the two fans 8 are respectively arranged at two corners of the accommodating space 11, and the two corners are arranged diagonally, that is, one fan 8 is arranged at one corner of the accommodating space 11, and the other fan 8 is arranged at the other corner of the accommodating space 11, and the two corners are arranged diagonally. The two fans 8 are arranged diagonally, which can further circulate the hydrogen peroxide gas in the room 1 to achieve uniform sterilization. It is understandable that the two fans 8 can be arranged close to the ground or close to the roof. Of course, it is also possible that one fan 8 is arranged close to the roof and the other fan 8 is arranged close to the ground.

[0071] The number of exhaust vents 461 of the exhaust system 46 is two, and the two exhaust vents 461 are respectively arranged at two corners of the accommodating space 11, and the two corners are arranged diagonally. That is, one exhaust vent 461 is arranged at one corner of the accommodating space 11, and the other exhaust vent 461 is arranged at the other corner of the accommodating space 11, and the two corners are arranged diagonally. The two exhaust vents 461 are arranged diagonally, which can further accelerate the discharge of the gas in the accommodating space 11 (the gas can be air or a mixture of air and hydrogen peroxide), and further make the gas in the accommodating space 11 be discharged evenly. Optionally, both exhaust vents 461 are arranged near the roof. It can be understood that when the number of exhaust vents 461 is two, an exhaust filter 466 is provided at each exhaust vent 461.

[0072] It is understandable that, since the fan 8 and / or the exhaust port 461 have certain sizes, the fan 8 and / or the exhaust port 461 are arranged at the corner of the wall, and are not necessarily strictly located at the intersection of two adjacent walls, but may also be located near the intersection of one of the walls.

[0073] Optionally, the exhaust filter 466 is connected to the exhaust port 461 to facilitate filtering the gas entering the exhaust port 461 from the accommodation space 11 to prevent hydrogen peroxide from polluting the air. Optionally, the main working principle of the exhaust filter 466 is physical filtration and electrostatic adsorption. The exhaust filter 466 is a filter in the prior art, as long as it has the function of filtering hydrogen peroxide, so it is not repeated here.

[0074] Preferably, the exhaust filter 466 and the inlet filter 44 protrude from the wall and are wrapped with stainless steel to prevent corrosion.

[0075] The sterilization room further includes a hydrogen peroxide concentration detection unit, a temperature detection unit and / or a relative humidity detection unit arranged in the accommodation space 11. The hydrogen peroxide concentration detection unit is used to detect the concentration of hydrogen peroxide in the accommodation space 11, the temperature detection unit is used to detect the temperature in the accommodation space 11, and the relative humidity detection unit is used to detect the humidity in the accommodation space 11. The specific structures of the hydrogen peroxide concentration detection unit, the temperature detection unit and the relative humidity detection unit are prior art, and therefore, they are not described in detail here.

[0076] Optionally, in this embodiment, the hydrogen peroxide concentration detection unit, the temperature detection unit and the relative humidity detection unit are integrated into an integrated detector 10 for easy installation, and the temperature, humidity and hydrogen peroxide concentration data in the room 1 are monitored in real time to maintain the accommodation space 11 in an optimal state.

[0077] like Figure 2 As shown, specifically, the exhaust system 46 may include a return air duct 464, one end of which is connected to the exhaust port 461, and the other end is connected to the air inlet of the air inlet system, so that the exhaust system 46 and the air inlet system are switchably connected to realize the internal circulation of air in the room 1. Optionally, the exhaust system 46 may also include a return air valve 465, which is connected to the return air duct 464 and is used to control the opening and closing of the return air duct 464, so that the exhaust system 46 and the air inlet system are switchably connected through the return air valve 465.

[0078] Optionally, the exhaust system 46 may further include a direct exhaust duct 63, one end of which is connected to the exhaust port 461, and the other end is connected to the outside world, so that the exhaust port 461 is selectively connected to the outside world. For example, when the sterilization room is in the residual exhaust mode, the direct exhaust valve 462 is always opened at the maximum opening to achieve residual exhaust. Optionally, the exhaust system 46 may further include a direct exhaust valve 462, which is connected to the direct exhaust duct 63 and is used to control the opening and closing of the direct exhaust duct 63, and then control whether the air in the accommodating space 11 is discharged to the outside world through the direct exhaust valve 462.

[0079] like Figure 1 and Figure 2As shown, optionally, in this embodiment, the air intake system includes an air conditioning unit 41, a fresh air pipe 42 and a fresh air valve 43, one end of the fresh air pipe 42 is connected to the air inlet of the air conditioning unit 41, and the other end is connected to the outside to input the outside air into the air conditioning unit 41. Specifically, the air conditioning unit 41 is switchably connected to the return air pipe 464 through the return air valve 465. The fresh air valve 43 is connected to the fresh air pipe 42 and is used to open and close the fresh air pipe 42. Among them, the air conditioning unit 41 is used to adjust the temperature and / or humidity of the air. The air conditioning unit 41 can be an air conditioning purification system in the prior art, and the specific structure of the air conditioning unit 41 is the prior art, so it is not repeated here. It can be understood that the air inlet of the air conditioning unit 41 is the air inlet of the air intake system. Optionally, in this embodiment, when the exhaust system 46 is connected to the air intake system, the fresh air valve 43 can be closed or opened to a smaller opening so that the outside air does not enter the air conditioning system 4 or less air enters the air conditioning system 4. Exemplarily, when the sterilization room is operated in the exhaust mode, the fresh air valve 43 can be always opened to allow the outside air to continuously enter the air conditioning unit 41.

[0080] Optionally, the air outlet of the air inlet system can be set on the roof of the room 1, and the number of air outlets can be two, so as to improve the uniformity of the air intake. The air inlet filter 44 can be connected to the outside of the air outlet of the air inlet system to wrap the air outlet, or it can be connected to the inside of the air outlet. The air inlet filter 44 is sealed around the air outlet so that all the air entering the accommodating space 11 is filtered by the air inlet filter 44. Optionally, the main working principle of the air inlet filter 44 is physical filtration and electrostatic adsorption. The air inlet filter 44 maintains cleanliness by filtering suspended particles in the air. Therefore, it will not affect the air with a preset temperature and humidity formed by the air conditioning unit 41. The air inlet filter 44 is a filter in the prior art. As long as the filtered air meets the cleanliness requirements of the first-level clean area 100, it will not be described here.

[0081] Optionally, stainless steel material is attached to the side wall of room 1 and / or stainless steel material is attached to the roof of room 1. Exemplarily, the inner wall of the direct exhaust duct 463 can be attached with stainless steel material, or the direct exhaust duct 463 can be a stainless steel pipe to prevent corrosion penetration. Stainless steel material can withstand corrosion from various chemical disinfectants, hydrogen peroxide, ozone, etc., and there is no cleaning dead corner. Optionally, the surface roughness of the stainless steel material is ≤1.2μm Ra, and the surface is polished and smooth, meeting the requirements of GMP hygiene standards.

[0082] Optionally, each valve is a solenoid valve to facilitate opening and closing control.

[0083] Combine the following Figure 3-Figure 5 Introduce the various working modes of the sterilization room:

[0084] like Figure 3 As shown, when the room 1 is used as a clean area room, that is, when the sterilization room is switched to the clean area room, the sterilization room operates in the clean area operation mode: the air conditioning system 4 operates, the sterilization system 7 is closed, the direct exhaust valve 462 is closed, the fresh air valve 43 is opened, the return air valve 465 is opened, the entrance door 2 and the exit door 3 are closed, and the entrance door 2 and the exit door 3 can be unlocked or locked. The air input into the accommodation space 11 by the air intake system passes through the air intake filter 44 and is sent to the accommodation space 11 to maintain the cleanliness of the room 1 so that the cleanliness of the room 1 meets the cleanliness of the first-level clean area 100. The air intake system does not completely deliver fresh air, but partially or completely delivers the air that is re-filtered and returned to the accommodation space 11, thereby reducing costs.

[0085] like Figure 4 As shown, when operating in sterilization mode, the fresh air valve 43, the direct exhaust valve 462, and the return air valve 465 are all closed, the entrance door 2 and the exit door 3 are closed and locked, the room 1 forms a closed space, the sterilization system 7 is turned on, and the gaseous hydrogen peroxide is transmitted to the room 1 through the sterilization air inlet pipe 72 and the nozzle 73 for sterilization.

[0086] like Figure 5 As shown, it is operated in the residual discharge mode. After the sterilization is completed, the return air valve 465 remains closed, the sterilization system 7 is closed, the fresh air valve 43 and the direct exhaust valve 462 are fully opened, the entrance door 2 and the exit door 3 remain closed and locked, and the air conditioning system 4 is working. The fresh air enters the accommodation space 11 through the air inlet filter 44 to quickly discharge the gaseous hydrogen peroxide in the room 1, and passes through the exhaust filters 466 on both sides of the room 1 to decompose the hydrogen peroxide gas for filtration, and then is fully discharged to the outside through the direct exhaust duct 63 to achieve the purpose of residual discharge. When the hydrogen peroxide concentration in the accommodation space 11 reaches below 1ppm, the room 1 returns to the clean area operation mode.

[0087] During the residual discharge process after sterilization, the return air valve 465 closes the return air duct 464, the direct discharge valve 462 opens the direct discharge air duct 63, and at the same time increases the air intake speed of the fresh air duct 42 to achieve the purpose of rapid residual discharge. After the residual discharge is completed, when operating in the clean area operation mode, in order to save energy consumption, the direct discharge valve 462 closes the direct discharge air duct 63, the return air valve 465 opens the return air duct 464, and at the same time reduces the air outlet speed of the fresh air duct 42. At this time, fresh air and return air are delivered to room 1 at the same time.

[0088] Optionally, when the room 1 is switched to the sterilization function, the operation can be divided into three stages:

[0089] Dehumidification stage: the air conditioning system 4 mainly performs internal circulation, does not supply fresh air or supplies a small amount of fresh air, maintains a slight positive pressure, and the return air valve 465 opens the return air duct 464 to adjust the temperature and humidity of the room 1 to below 40%.

[0090] Sterilization stage: that is, the sterilization chamber operates in sterilization mode.

[0091] Ventilation stage: that is, the sterilization chamber operates in exhaust mode.

[0092] Although the utility model has been described in detail above by means of general description, specific implementation methods and tests, it is obvious to those skilled in the art that some modifications or improvements can be made to the utility model. Therefore, these modifications or improvements made without departing from the spirit of the utility model are within the scope of protection claimed by the utility model.

Claims

1. A sterilization room with switchable functions, characterized in that: include: A room (1) having a storage space (11), and an inlet and an outlet both connected to the storage space (11), wherein the outlet can be connected to a first-level clean area (100), and the inlet can be connected to a second-level clean area (200); An entrance door (2) for opening and closing the entrance; An exit door (3) for opening and closing the exit; The air conditioning system (4) comprises an air intake system and an exhaust system (46), wherein the air intake system is provided with an air intake filter (44), wherein the air intake filter (44) is connected to an air outlet of the air intake system and is used to filter the air blown into the accommodation space (11) by the air intake system, and wherein the exhaust system (46) is provided with an exhaust filter (466) and is used to filter polluted gas blown out of the accommodation space (11), and wherein the exhaust system (46) is switchably connected to the air intake system; A sterilization system (7) is used to sterilize the material in the containing space (11).

2. The function-switchable sterilization room according to claim 1, characterized in that: The exhaust system (46) comprises a straight exhaust duct (463), one end of which is connected to an exhaust port (461) of the exhaust system (46), and the other end of which is connected to the outside; The exhaust system (46) further comprises a return air duct (464), one end of the return air duct (464) being connected to the exhaust port (461), and the other end of the return air duct (464) being connected to the air inlet of the air inlet system.

3. The function-switchable sterilization room according to claim 2, characterized in that: The exhaust system (46) further comprises a direct exhaust valve (462) and a return air valve (465); the direct exhaust valve (462) is connected to the direct exhaust air duct (463) and is used to control the opening and closing of the direct exhaust air duct (463); the return air valve (465) is connected to the return air duct (464) and is used to control the opening and closing of the return air duct (464).

4. The function-switchable sterilization room according to claim 3, characterized in that: The air intake system comprises an air conditioning unit (41), a fresh air pipe (42) and a fresh air valve (43); one end of the fresh air pipe (42) is connected to the air inlet of the air conditioning unit (41), and the other end is connected to the outside; the fresh air valve (43) is connected to the fresh air pipe (42) and is used to open and close the fresh air pipe (42); The air conditioning unit (41) and the return air duct (464) are switchably connected via the return air valve (465).

5. The function-switchable sterilization room according to any one of claims 1 to 3, characterized in that: The sterilization system (7) comprises a hydrogen peroxide vaporization generator (71), a sterilization air inlet pipeline (72) and a nozzle (73) which are connected in sequence; the hydrogen peroxide vaporization generator (71) is located outside the accommodation space (11) of the room (1), and the nozzle (73) is located inside the accommodation space (11) of the room (1).

6. The function-switchable sterilization room according to claim 5, characterized in that: The nozzle (73) is provided with a plurality of holes, and at least two of the holes have opening angles different from each other; and / or The sterilization system (7) further comprises a sterilization return air duct (74), one end of which is in communication with the accommodation space (11) of the room (1), and the other end of which is in communication with the hydrogen peroxide vaporization generator (71).

7. The function-switchable sterilization room according to claim 2, characterized in that: The function-switchable sterilization room further comprises a fan (8) arranged in the accommodation space (11), wherein the fan (8) is used to evenly distribute the sterilization gas in the accommodation space (11), and / or The exhaust filter (466) is connected to the exhaust port (461).

8. The function-switchable sterilization room according to any one of claims 1 to 3, characterized in that: The function-switchable sterilization room further comprises a hydrogen peroxide concentration detection unit, a temperature detection unit and / or a relative humidity detection unit arranged in the containing space (11).

9. The function-switchable sterilization room according to claim 2 or 3, characterized in that: A stainless steel material is attached to the side wall of the room (1) and / or a stainless steel material is attached to the roof of the room (1); The inner wall of the direct exhaust air duct (463) is attached with a stainless steel material, or the direct exhaust air duct (463) is a stainless steel tube.

10. The function-switchable sterilization room according to claim 7, characterized in that: The number of the fans (8) is two, and the two fans (8) are respectively arranged at two corners of the accommodating space (11), and the two corners are arranged diagonally; and / or The number of the exhaust vents (461) is two, and the two exhaust vents (461) are respectively arranged at two wall corners of the accommodating space (11), and the two wall corners are arranged diagonally.

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