An integrated rotary sterilization cabinet

Abstract

This utility model relates to the field of sterilization equipment technology, specifically to an integrated rotary sterilizer, comprising: a sterilizer body, a temperature control circulation system, a rotation system, a detection system, and a control system. The temperature control circulation system is used to heat, maintain, and cool the medium inside the sterilization chamber. The rotation system is used to rotate the product to be processed. The detection system is used to detect the operating parameters inside the sterilization chamber. The control system is used to coordinate the operation of the temperature control circulation system and the rotation system based on signals obtained from the detection system. By integrating the temperature control circulation system, rotation system, detection system, control system, washing system, and leak detection system, this utility model can perform a complete thermal process, including heating, maintaining, and cooling, on the sterilization chamber and the product to be processed inside. It also has the structural basis and control capability to reheat the product at the end of the processing flow.

Description

Technical Field

[0001] This utility model relates to the field of sterilization equipment technology, specifically to a comprehensive rotary sterilization cabinet. Background Technology

[0002] When sterilizing ampoules of fat emulsion injection products using a rotary sterilizer, the process involves water injection, heating, heat preservation, cooling, color water leak detection, rinsing, and ending the process. In practice, if the color water is not completely removed after rinsing, manual rinsing with purified water is required, followed by transferring the residual water from the evaporation flasks stored in the cooling area.

[0003] After the traditional sterilization and cooling process, moisture may adhere to the surface of the product container due to condensation or residual process water. If the product temperature is low, this moisture is not easily evaporated, which may interfere with subsequent automated or manual light inspections and affect the accuracy of the tests. At the same time, a damp bottle may also adversely affect the adhesion and aesthetics of packaging operations such as labeling.

[0004] The residual water on the ampoules cannot be completely evaporated by increasing the fan power or extending the cooling time. In addition, a very small number of ampoules still have a small amount of colored water attached after washing. The presence of residual water and a small amount of colored water both affect the accuracy of light inspection and identification. The residual water on the packaging affects the reliability of labeling. The solution is to manually wipe off the residual water with a towel. However, manual wiping is inefficient and unreliable. Utility Model Content

[0005] The present invention addresses the current practice of washing and drying products after sterilization. The aim is to provide a comprehensive rotary sterilizer that integrates multiple processes, including sterilization, multiple cleanings, and final temperature control, into a single device, thereby reducing manual intervention and improving the continuity and repeatability of the process.

[0006] This utility model is achieved through the following technical solution:

[0007] A comprehensive rotary sterilizer includes:

[0008] The sterilizer body defines a sterilization chamber for placing products to be processed.

[0009] A temperature-controlled circulation system includes a heat exchanger. The primary inlet of the heat exchanger is connected to a steam supply pipeline and a cooling water supply pipeline. The primary outlet of the heat exchanger is connected to a drain pipeline. The secondary outlet of the heat exchanger is connected to the upper inlet of the sterilization chamber. The secondary inlet of the heat exchanger is connected to the lower inlet of the sterilization chamber via a circulation pump. The temperature-controlled circulation system is used to heat, maintain, and cool the medium inside the sterilization chamber.

[0010] A rotating system, disposed within the sterilization chamber, is used to rotate the product to be processed;

[0011] A detection system for detecting operating parameters within the sterilization chamber;

[0012] A control system is electrically connected to the actuator of the temperature control circulation system, the rotation system, and the detection system, and is used to coordinate the operation of the temperature control circulation system and the rotation system based on signals acquired from the detection system.

[0013] Furthermore, the temperature control circulation system also includes at least one nozzle, which is disposed on the upper part of the sterilization chamber and sprays towards the product to be processed located in the sterilization chamber. The nozzle is connected to the secondary side outlet of the heat exchanger through the upper inlet of the sterilization chamber.

[0014] Optionally, the steam supply pipeline includes: a large steam pipeline and a small steam pipeline arranged in parallel, the inlet ends of the large steam pipeline and the small steam pipeline are connected to industrial steam, and the outlet ends of the large steam pipeline and the small steam pipeline are connected to the primary side inlet of the heat exchanger;

[0015] A large steam valve is installed on the large steam pipeline, and a small steam proportional valve is installed on the small steam pipeline.

[0016] Optionally, the cooling water supply pipeline includes: a large cooling water pipeline and a small cooling water pipeline arranged in parallel, wherein the inlet ends of the large cooling water pipeline and the small cooling water pipeline are connected to cooling water, and the outlet ends of the large cooling water pipeline and the small cooling water pipeline are connected to the primary side inlet of the heat exchanger.

[0017] A large cooling water valve is installed on the large cooling water pipeline, and a small cooling water valve is installed on the small cooling water pipeline.

[0018] Optionally, the drainage pipeline includes a cooling water drainage pipeline and a condensate drainage pipeline, the inlet ends of which are both connected to the primary side outlet of the heat exchanger;

[0019] A drain valve is installed on the cooling water drain pipe;

[0020] The condensate drain pipeline includes a bypass pipeline and a drain pipeline connected in parallel. The inlet ends of the bypass pipeline and the drain pipeline are both connected to the primary side outlet of the heat exchanger. A drain bypass valve is provided on the bypass pipeline, and a condensate valve and a drain valve are sequentially provided on the drain pipeline.

[0021] Furthermore, a reversing valve is provided between the circulating pump and the secondary inlet of the heat exchanger, and the sterilizer also includes a leak detection system, which includes a color water pipeline system, a vacuum pipeline system and a compressed air pipeline system. The actuator of the leak detection system is electrically connected to the control system.

[0022] The colored water pipeline system includes a colored water storage tank and a colored water pump. The outlet of the colored water storage tank is connected to the pipeline between the circulation pump and the sterilization chamber through the colored water pump and the colored water inlet valve. The inlet of the colored water storage tank is connected back to the colored water valve and then to the pipeline between the circulation pump and the reversing valve. The colored water pipeline system is used to inject and recover colored water into the sterilization chamber.

[0023] The vacuum pipeline system includes a vacuum pumping group, which is connected to a vacuum pumping valve and then to the sterilization chamber. The vacuum pipeline system is used to evacuate the sterilization chamber.

[0024] The compressed air pipeline system includes a pressurization pipeline and an exhaust pipeline, both of which are connected to the sterilization chamber. Compressed air is connected to the inlet end of the pressurization pipeline, and a compressed air valve is installed on the pressurization pipeline. An exhaust valve is installed on the exhaust pipeline. The compressed air pipeline system is used to apply positive pressure to the sterilization chamber and to discharge compressed air.

[0025] Furthermore, the sterilization cabinet also includes a cleaning system, which includes a purified water injection pipeline and an exhaust pipeline, and the actuating components of the cleaning system are electrically connected to the control system.

[0026] Both the purified water injection pipeline and the discharge pipeline are connected to the lower inlet of the sterilization chamber. The inlet end of the purified water injection pipeline is connected to purified water. The purified water injection pipeline is equipped with a water injection valve, and the discharge pipeline is equipped with a discharge valve.

[0027] Optionally, the rotating system includes multiple balancing support wheels, a roller, and a rotary reduction motor. The multiple balancing support wheels are fixedly installed at the bottom of the sterilization chamber, and the roller is rotatably mounted on the balancing support wheels. A toothed ring is provided on the outer side of the roller, and the power output end of the rotary reduction motor meshes with the toothed ring through an output gear, thereby driving the roller to rotate.

[0028] Optionally, a slide rail matching the wheels of the sterilization cart is provided at the lower interior of the drum, and a pressure plate that can move up and down is provided at the upper interior of the drum. The pressure plate is used to fix the sterilization cart loaded on the slide rail inside the drum when it moves down.

[0029] Specifically, the detection system includes a temperature detection group, a liquid level detection group, and a water quality detection group. The liquid level detection group is used to detect the liquid level height in the sterilization chamber, and the water quality detection group is used to detect the water quality of the circulating water in the sterilization chamber.

[0030] The temperature detection group includes:

[0031] TD temperature probe used to detect the reference temperature at the highest point inside the sterilization chamber;

[0032] TH temperature probe used to detect the temperature at the first inlet of the sterilization chamber;

[0033] TL temperature probe used to detect the temperature at the second inlet of the sterilization chamber;

[0034] Multiple Tn temperature probes are used to detect the actual temperature distribution inside the sterilization chamber, and the multiple Tn temperature probes are distributed at different locations inside the sterilization chamber.

[0035] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0036] This utility model integrates a temperature control circulation system, a rotation system, a detection system, a control system, a cleaning and washing system, and a leak detection system. It can perform a complete thermal process, including heating, heat preservation, and cooling, on the sterilization chamber and the products to be processed inside. It also has the structural basis and control capability to reheat the products at the end of the processing flow.

[0037] By integrating multiple processes such as sterilization, leak detection, multiple cleanings, and final temperature regulation into the same equipment and achieving automated continuous operation through a control system, manual intervention is reduced, the continuity and repeatability of the process are improved, and the transfer time of products between different processing units is shortened. Attached Figure Description

[0038] The accompanying drawings illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the principles of the present invention. These drawings are included to provide a further understanding of the present invention, and are included in and constitute a part of this specification, but do not constitute a limitation on the embodiments of the present invention.

[0039] Figure 1 This is a structural schematic diagram of a comprehensive rotary sterilizer according to the present invention.

[0040] Attached reference numerals: 1-Sterilization chamber, 2-Second inlet, 3-Circulation pump, 4-Heat exchanger, 5-Condensate valve, 6-Drain valve, 7-Drain bypass valve, 8-Drain valve, 9-Small cooling water valve, 10-Large cooling water valve, 11-Large steam valve, 12-Small steam proportional valve, 13-First inlet, 14-Compressed air valve, 15-Exhaust valve, 16-Water injection valve, 17-Drain valve, 18-Rotary geared motor assembly, 19-Color water storage tank, 20-Vacuum assembly, 21-Level detection assembly, 22-Reversing valve, 23-Return color water valve, 24-Color water inlet valve, 25-Vacuum valve, 26-Color water pump, 27-Water quality detection assembly, 28-TH temperature probe, 29-TD temperature probe, 30-TL temperature probe, 31-Tn temperature probe. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this utility model.

[0042] It should also be noted that, for ease of description, only the parts relevant to this utility model are shown in the accompanying drawings.

[0043] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0044] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0045] Where there is no conflict, the embodiments and features of the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0046] Example 1

[0047] like Figure 1 As shown, a comprehensive rotary sterilizer is provided, including: a sterilizer body, a temperature control circulation system, a rotation system, a detection system, and a control system.

[0048] The sterilizer body defines a sterilization chamber 1 for placing the products to be processed. As the core space for containing and processing the products to be sterilized, the products loaded into the sterilization chamber 1 include sterilization carts, rotating mechanisms, support wheels, and front and rear doors, etc. It is a sealed sterilization site for the products and is a container that can withstand high temperature and high pressure.

[0049] The temperature control circulation system is responsible for precisely regulating the temperature of the medium (usually water or steam) within the sterilization chamber 1 to meet the process requirements of product heating, heat preservation, and cooling. The key component is the heat exchanger 4, which has a primary side and a secondary side. The primary side typically carries steam or cooling water, a medium used to provide or remove heat. The secondary side is connected to the circulating medium within the sterilization chamber 1. During heating, it converts industrial steam energy into heat for the products inside the sterilization chamber; during cooling, it uses cooling water to remove energy from the sterilization chamber, thus lowering the temperature inside.

[0050] The primary side inlet of heat exchanger 4 is connected to a steam supply pipeline and a cooling water supply pipeline, the primary side outlet of heat exchanger 4 is connected to a drain pipeline, the secondary side outlet of heat exchanger 4 is connected to the upper inlet of sterilization chamber 1, and the secondary side inlet of heat exchanger 4 is connected to the lower inlet of sterilization chamber 1 through circulation pump 3. The temperature control circulation system is used to heat up, keep warm, and cool down the medium in sterilization chamber 1.

[0051] The circulating pump 3 is used to drive the medium in the sterilization chamber 1 to circulate. The specific flow path is as follows: the medium flows out from the lower inlet of the sterilization chamber 1, is pressurized by the circulating pump 3, and enters the secondary side inlet of the heat exchanger 4; after being heated or cooled on the secondary side of the heat exchanger 4, the medium flows out from the secondary side outlet of the heat exchanger 4, and then returns to the chamber through the upper inlet of the sterilization chamber 1, forming a closed circulation loop to ensure the uniformity and controllability of the temperature in the sterilization chamber.

[0052] The rotating system is installed in the sterilization chamber 1 and is used to rotate the product to be treated so that the product to be treated is heated evenly during the heat treatment process.

[0053] The detection system is used to detect the operating parameters inside the sterilization chamber 1. These operating parameters include, but are not limited to, temperature, pressure, liquid level, valve position, current, and voltage, providing data support for the control system.

[0054] The control system (usually a programmable logic controller, PLC, etc.) is electrically connected to the actuators of the temperature control circulation system (such as the start and stop of the circulation pump 3, the opening degree of the valve, etc.), the rotation system, and the detection system, and is used to coordinate the operation of the temperature control circulation system and the rotation system by obtaining signals from the detection system.

[0055] The working principle can be summarized as follows: After the product to be processed is placed in sterilization chamber 1, the control system is activated. The detection system monitors the parameters inside the chamber in real time. Based on the detected parameters, the control system precisely regulates the temperature inside the chamber through heat exchanger 4 and circulating pump 3. For example, during the heating phase, steam enters the primary side of heat exchanger 4 to heat the secondary side circulating water, which is then pumped into the chamber to raise the product temperature; during the cooling phase, cooling water enters the primary side of heat exchanger 4, carrying away the heat from the secondary side circulating water, thereby lowering the product temperature.

[0056] In addition, to facilitate the entire circulation, a top pipe is installed at the top of the sterilizer body and a bottom pipe is installed at the bottom of the sterilizer body. The bottom pipe, together with the circulation pump 3, heat exchanger 4, top pipe and sterilizer body, forms a circulation pipeline to raise and lower the temperature of the products in the sterilizer. It is also connected to water injection and drainage, conductivity detection and bottom temperature detection.

[0057] Example 2

[0058] This embodiment refines and enhances the temperature control circulation system based on Embodiment 1.

[0059] The temperature control circulation system also includes at least one nozzle, which is located on the upper part of the sterilization chamber 1 and sprays towards the product to be treated inside the sterilization chamber 1. The nozzle is connected to the secondary side outlet of the heat exchanger 4 through the upper inlet of the sterilization chamber 1. The function of the nozzle is to spray the circulating medium (such as hot water or cooling water) that has been regulated at the temperature by the heat exchanger 4 directly onto the surface of the product to be treated, thereby enhancing convective heat transfer and achieving faster and more uniform temperature transfer.

[0060] The steam supply pipeline includes: a large steam pipeline and a small steam pipeline connected in parallel. The inlet ends of the large steam pipeline and the small steam pipeline are connected to industrial steam, and the outlet ends of the large steam pipeline and the small steam pipeline are connected to the primary side inlet of heat exchanger 4.

[0061] A large steam valve 11 is installed on the large steam pipeline, and a small steam proportional valve 12 is installed on the small steam pipeline.

[0062] The large steam valve 11 is opened during the sterilization heating stage to achieve rapid heating. The small steam proportional valve 12 controls the valve opening as needed when the temperature is close to the sterilization temperature, or a certain opening can be set as needed to ensure that the temperature control and F0 value control during the sterilization process meet the requirements. During the remaining heating stages, it can be fully opened as needed.

[0063] The cooling water supply pipeline includes: a large cooling water pipeline and a small cooling water pipeline connected in parallel. The inlet ends of the large cooling water pipeline and the small cooling water pipeline are connected to cooling water, and the outlet ends of the large cooling water pipeline and the small cooling water pipeline are connected to the primary side inlet of the heat exchanger 4.

[0064] A large cooling water valve 10 is installed on the large cooling water pipeline, and a small cooling water valve 9 is installed on the small cooling water pipeline.

[0065] In the initial stage of cooling, the small cooling water valve 9 is usually opened first to introduce a small amount of cooling water to avoid the sudden addition of a large amount of cooling water, which would cause a large amount of water hammer and damage the heat exchanger 4, or cause the bottle to break due to excessive temperature difference inside the cabinet.

[0066] The drainage pipeline includes a cooling water drainage pipeline and a condensate drainage pipeline. The inlet ends of both the cooling water drainage pipeline and the condensate drainage pipeline are connected to the primary side outlet of the heat exchanger 4.

[0067] A drain valve 8 is installed on the cooling water drain pipe. It opens when the temperature drops, allowing the heat inside the sterilizer to be carried away by the cooling water and thus cooled down.

[0068] The condensate drain pipeline includes a bypass pipeline and a drain pipeline connected in parallel. The inlet ends of both the bypass pipeline and the drain pipeline are connected to the primary side outlet of the heat exchanger 4. A drain bypass valve 7 is installed on the bypass pipeline, and a condensate valve 5 and a drain valve 6 are installed sequentially on the drain pipeline.

[0069] Condensate valve 5 is used to open when the temperature rises to 90 degrees Celsius. Condensate flows through drain valve 6, while drain bypass valve 7 is closed. The purpose is to increase the condensate pressure in the pipeline and save energy.

[0070] Steam trap 6 automatically discharges condensate and non-condensable gases such as air generated in the steam system. Specifically, it discharges condensate under pressure, maintaining a certain pressure within the pipeline, which is beneficial for energy conservation. Steam bypass valve 7 opens when the temperature is below 90 degrees Celsius, facilitating rapid heating. In the initial stage of heating (e.g., when the temperature is below a certain set value, such as 90 degrees Celsius), steam bypass valve 7 can be opened to quickly discharge a large amount of initial condensate and air, helping to rapidly increase the steam temperature and pressure within heat exchanger 4, thereby accelerating heating. Once the temperature reaches a certain level (e.g., above 90 degrees Celsius), steam bypass valve 7 is closed, and condensate valve 5 is opened, allowing condensate to be discharged through steam trap 6. This maintains the steam pressure within heat exchanger 4, improving steam utilization efficiency and achieving energy conservation.

[0071] Example 3

[0072] This embodiment describes the structure of the rotating system, which is used to carry and drive the sterilization cart containing the products to be processed to rotate during sterilization and other processes, so as to ensure that the products are heated evenly or meet specific process requirements. It mainly consists of an external drive and support mechanism and a device inside the drum for fixing the sterilization cart.

[0073] The rotating system includes multiple balancing support wheels, a roller, and a rotary reduction motor. The multiple balancing support wheels are fixedly installed at the bottom of the sterilization chamber 1 to provide stable and smooth rolling support for the roller.

[0074] The drum is mounted on a balance support wheel. A toothed ring is provided on the outer side of the drum. The power output end of the rotary reduction motor meshes with the toothed ring through the output gear and drives the drum to rotate.

[0075] The inner bottom of the drum is equipped with a slide rail that matches the wheels of the sterilization cart. The size and structure of the slide rail match the wheels at the bottom of the sterilization cart, which is used to guide the sterilization cart smoothly into and out of the drum and to provide basic positioning for the sterilization cart during rotation.

[0076] An adjustable pressure plate is located at the top of the inner drum. As the pressure plate moves downwards, it secures the sterilization cart, mounted on a slide rail, within the drum. Once the cart is on the slide rail inside the drum, the pressure plate moves downwards, applying pressure to firmly press and secure the cart inside the drum. This ensures that the cart and its loaded products will not shift, tip over, or fall off at any angle or speed of drum rotation, guaranteeing the stability and safety of the processing. When processing is complete and the cart needs to be removed, the pressure plate moves upwards, releasing the cart from its fixation.

[0077] The sterilizer can be adjusted upwards or downwards at both the front and rear doors. Raising the pressure plate creates a gap between the sterilization cart and the pressure plate, allowing the cart and product to easily enter and exit the sterilizer. Lowering the pressure plate presses down on the cart, securing the product and preventing displacement or detachment of the cart and product regardless of the drum's rotation position. Engaging with the external gears are transmission gears and a rotary reducer motor assembly. After the product is secured in the sterilization cart within the drum, the rotary reducer motor assembly 18 is activated. The drum rotates under the combined action of external force (clockwise or counter-clockwise rotation is possible, but counter-clockwise rotation is used in this embodiment) on four balance support wheels, keeping the product in motion and preventing oil spillage during sterilization, which could affect product quality.

[0078] The loading process is as follows:

[0079] The product is placed into a sterilization box, and the sterilization box is then placed into a sterilization cart.

[0080] Open the front door of the sterilizer and push the sterilization cart containing the products to be processed into the drum along the slide rail at the bottom of the drum.

[0081] The pressure plate at the top inside the drum moves downward, firmly pressing and fixing the sterilization cart inside the drum.

[0082] During process stages that require product rotation (such as heating, heat preservation, cooling, or specific cleaning steps), the control system starts the rotary geared motor.

[0083] The power of the rotary geared motor is transmitted to the gear ring fixed to the outside of the drum through its output gear, thereby driving the entire drum, together with the sterilization cart fixed inside, to rotate around its central axis. The speed and direction of rotation can be adjusted by the control system according to the process requirements.

[0084] After the process is completed, the rotary geared motor stops, and the pressure plate rises.

[0085] Open the rear door of the sterilizer, and the sterilization cart can be moved out from inside the drum along the slide rail.

[0086] Example 4

[0087] This embodiment describes a leak detection system in a sterilization cabinet, which detects whether there is a leak in the product to be processed by applying negative pressure, injecting colored water, and then applying positive pressure.

[0088] A reversing valve 22 is installed between the circulating pump 3 and the secondary inlet of the heat exchanger 4. The function of the reversing valve 22 is to change the flow direction of the liquid pumped out by the circulating pump 3. During normal sterilization or temperature control circulation, the medium pumped out by the circulating pump 3 is directed to the heat exchanger 4 for heating or cooling. When recovering colored water in the leak detection process, the flow path can be switched to achieve partial flow channel sharing, reducing the piping complexity of the entire device.

[0089] The sterilizer also includes a leak detection system, which includes a color water pipeline system, a vacuum pipeline system, and a compressed air pipeline system. The actuators of the leak detection system are electrically connected to the control system. The color water pipeline system is used to inject and recover color water into the sterilization chamber 1. The vacuum pipeline system is used to evacuate the sterilization chamber 1. The compressed air pipeline system is used to apply positive pressure to the sterilization chamber 1 and discharge compressed air.

[0090] The colored water pipeline system includes a colored water storage tank 19 and a colored water pump 26. The outlet of the colored water storage tank 19 is connected to the pipeline between the circulation pump 3 and the sterilization chamber 1 through the colored water pump 26 and the colored water inlet valve 24. That is, when the colored water is injected, it is directly pumped into the chamber through the colored water pump 26. Here, the second inlet 2 below the sterilization chamber 1 serves as the inlet of the colored water.

[0091] The inlet of the colored water storage tank 19 is connected to the return colored water valve 23 and then to the pipeline between the circulation pump 3 and the reversing valve 22. When recycling colored water, the colored water in the chamber is pumped out by the main circulation pump 3, the reversing valve 22 is closed and the return colored water valve 23 is opened, and the colored water is guided back to the colored water storage tank 19.

[0092] The vacuum piping system includes a vacuum assembly 20, which is connected to a vacuum valve 25 and then to the sterilization chamber 1. The vacuum assembly 20 evacuates the sealed sterilization chamber 1 (containing the product to be inspected) to achieve a preset negative pressure. The vacuum assembly 20 includes a vacuum pump, piping, and valves that generate a vacuum using the space inside the sterilizer, necessary for negative pressure leak detection of the product. Cooling water is supplied and drained from the vacuum pump (not shown). The purpose of vacuuming is to extract the gas inside defective products and maintain their negative pressure. When colored water surrounds the defective product, additional pressure is applied to prevent the colored water from entering the defective bottle.

[0093] The compressed air pipeline system includes a pressurization pipeline and an exhaust pipeline. Both the pressurization pipeline and the exhaust pipeline are connected to the sterilization chamber 1. The inlet end of the pressurization pipeline is connected to compressed air. A compressed air valve 14 is installed on the pressurization pipeline. When the pressure inside the cabinet is lower than the set value, this valve is opened to add compressed air to balance the pressure inside the sterilization cabinet. During the leak detection stage, the bottle with pressure defect of colored water is put into the positive pressure.

[0094] An exhaust valve 15 is installed on the exhaust pipe. When the pressure inside the cabinet exceeds the set value, this valve is opened to release the pressure.

[0095] After the colored solution is injected and submerges the product, compressed air is introduced into the sterilization chamber 1 by opening the compressed air valve 14, bringing the chamber to a set positive pressure state. If there is a leak in the product, the external colored solution can more easily enter the product under the pressure difference. After leak detection, the exhaust valve 15 is opened to release the compressed air.

[0096] Negative pressure stage: Start the vacuum pipeline system (open the vacuum valve 25 and run the vacuum pump) to evacuate the sterilization chamber 1 to the preset negative pressure value and maintain it for a period of time. The purpose is to create negative pressure inside the product with leakage defects.

[0097] Color water injection: Start the color water pipeline system (run color water pump 26, open color water inlet valve 24), and pump the color water pump 26 in the color water storage tank 19 into the sterilization chamber 1 until the liquid level submerges all products to be inspected.

[0098] Positive pressure stage: Activate the pressurization section of the compressed air pipeline system (open compressed air valve 14) to fill the sterilization chamber 1, which has been injected with colored water, with compressed air until the preset positive pressure value is reached and maintained for a period of time. If there is a leak in the product, the external colored water will seep into the product under the combined effect of the positive and negative pressure difference.

[0099] Colored water recovery: After leak detection and pressure holding are completed, the recovery section of the colored water pipeline system is started. The reversing valve 22 changes the liquid direction, the circulation pump 3 starts, and the return colored water valve 23 is opened to return the colored water pump 26 in the sterilization chamber 1 to the colored water storage tank 19.

[0100] Pressure release / follow-up treatment: After the colored water is recovered, the pressure inside the chamber can be adjusted through the exhaust valve 15 of the compressed air pipeline system.

[0101] Example 5

[0102] This embodiment provides a cleaning system for cleaning the sterilization chamber 1 and the products inside. The cleaning system includes a purified water injection pipeline and an exhaust pipeline. The execution components of the cleaning system are electrically connected to the control system.

[0103] Both the purified water inlet and outlet pipes are connected to the lower inlet of sterilization chamber 1. The inlet of the purified water inlet pipe is connected to purified water, and a water inlet valve 16 is installed on the purified water inlet pipe for injecting purified water into the chamber. A drain valve 17 is installed on the outlet pipe for draining water from the sterilization chamber after sterilization.

[0104] During the cleaning phase, the water injection valve 16 is opened according to the instructions of the control system to inject purified water into the sterilization chamber 1 for rinsing or soaking the product and the inner wall of the chamber. Selecting the injection point at the lower part of the chamber helps the purified water to fill the chamber from the bottom up.

[0105] After cleaning is completed or during the interval between multiple cleaning cycles, the drain valve 17 is opened according to the instructions of the control system to discharge the cleaning wastewater (which may contain the washed-off residue) from the sterilization chamber 1 outside the equipment.

[0106] Furthermore, connecting both the purified water injection and drainage lines to the bottom of the cabinet reduces piping complexity.

[0107] The control system opens the water injection valve 16 on the purified water injection pipeline, and purified water is injected into the sterilization chamber 1 through the lower inlet until the preset liquid level or preset injection volume is reached. After the purified water is injected, dynamic cleaning can be performed in conjunction with the temperature control circulation system (which circulates water through the circulation pump 3) and the rotation system (which rotates the product). After the cleaning reaches the preset time, the control system closes the water injection valve 16 and opens the drain valve 17 on the drain pipeline to discharge the cleaning wastewater in the chamber through the lower inlet.

[0108] According to process requirements, the above steps of water injection, cleaning, and drainage can be repeated multiple times to ensure that the required level of cleanliness is achieved.

[0109] Example 6

[0110] This embodiment provides the specific structure of the detection system, which is the foundation for realizing the automation and precise control of the entire equipment. It monitors the physical and chemical state inside the sterilization chamber 1 in real time through various types of sensors and transmits this information to the control system.

[0111] The detection system includes a temperature detection group, a liquid level detection group 21, and a water quality detection group 27.

[0112] The liquid level detection group 21 is used to detect the liquid level height in the sterilization chamber 1. It usually includes a liquid level sensor (such as a float type, capacitive type, ultrasonic type or pressure type liquid level gauge, etc.). The sensor can convert the physical liquid level high and low signals into electrical signals. The liquid level detection group 21 reports the liquid level in the chamber in real time. The control system controls the water injection valve 16, the drain valve 17, etc. according to this to ensure that the liquid level meets the process requirements.

[0113] The water quality testing group 27 is used to test the water quality of the circulating water in the sterilization chamber 1. In practical applications, the purity or degree of pollution of the water is usually determined indirectly by testing the conductivity of the water.

[0114] To monitor the temperature at various key locations inside sterilization chamber 1, the temperature detection team includes:

[0115] The TD temperature probe 29 is used to detect the reference temperature at the highest point inside the sterilization chamber 1; that is, the temperature when the temperature control medium just enters the sterilization chamber 1.

[0116] The TH temperature probe 28 is used to detect the temperature at the first inlet 13 of the sterilization chamber 1; that is, the temperature of the temperature control medium before it enters the sterilization chamber 1 after exiting the heat exchanger 4 serves as the main temperature rise control feedback signal.

[0117] The TL temperature probe 30 is used to detect the temperature at the second inlet 2 of the sterilization chamber 1; that is, the temperature of the temperature control medium after it leaves the sterilization chamber 1 but before it enters the circulation pump 3, which serves as the main heat preservation control feedback signal.

[0118] Multiple Tn temperature probes 31 (n represents the number, such as T1, T2, T3, T4, etc.) are used to detect the actual temperature distribution inside the sterilization chamber 1. The multiple Tn temperature probes 31 are distributed in different positions inside the sterilization chamber 1. Through the distributed arrangement, the temperature uniformity inside the sterilization chamber 1 (especially the product loading area) is evaluated to ensure that all products can reach the temperature conditions required for sterilization or processing.

[0119] In addition, the input digital signals of the control system (not shown in the figure) mainly include:

[0120] Sterilizer front door open button signal, close button signal, emergency stop button signal, front door fully open signal, front door fully closed signal;

[0121] Sterilizer rear door open button signal, close button signal, emergency stop button signal, rear door fully open signal, rear door fully closed signal;

[0122] Overload signals for the soft drive of circulating pump 3, overload signal for the frequency converter of rotating motor, rotating field signal, overload signal for the soft drive of vacuum pump, and overload signal for color water pump 26; feedback signals for the following valves: large steam valve 11, large cooling valve, small cooling valve, drain valve 8, condensate bypass valve, condensate valve 5, water injection valve 16, drain valve 17, compressed air valve 14, vent valve, vacuum valve, reversing valve 22, color water inlet valve 24, color water return valve 23, door sealing valve, door opening evacuation valve, and door opening evacuation auxiliary valve.

[0123] The input analog signals include control temperatures TH and TL, on-site detection temperatures T1, T2, T3, T4 and TD, the conductivity of circulating water in the sterilizer, on-site compressed air pressure, cooling water pressure, steam pressure, door sealing pressure, two detection pressures at the same point inside the cabinet, and the liquid level in the sterilizer.

[0124] The above input signals are received by field components, directly scanned and acquired by the control electrical module, and then processed by the CPU according to the program before being output as either digital or analog signals.

[0125] The output switching signals of the control system include sterilizer operation indicator lights, end indicator lights, fault indicator lights, clockwise rotation indicator lights, counterclockwise rotation indicator lights, sterilizer front door opening, front door closing, rear door opening, rear door closing, start circulation pump 3 soft drive, vacuum pump soft drive, color water soft drive, rotary frequency converter; start large steam valve 11, large cooling valve, small cooling valve, drain valve 8, condensate bypass valve, condensate valve 5, water injection valve 16, drain valve 17, compressed air valve 14, vent valve, vacuum valve, reversing valve 22, color water inlet valve 24, color water return valve 23, door sealing valve, door opening evacuation valve, and door opening evacuation auxiliary valve; output analog signals include small steam valve opening degree and rotary frequency converter value.

[0126] Example 7

[0127] Currently, after products are sterilized and removed from the display case, they typically require repeated manual rinsing with purified water before being transferred to a cooling area where fans are used to blow and naturally evaporate any residual moisture. During this process, incomplete evaporation often necessitates manual wiping by inspection personnel, impacting inspection efficiency. Furthermore, residual moisture can negatively affect the quality of subsequent adhesive label application (e.g., improper application, label detachment). To address this issue, the following solution is provided.

[0128] Option 1: After the products are removed from the container, they are manually rinsed with purified water, followed by a tunnel drying oven with set temperature and time. The advantage is that it can completely evaporate any residual water from the ampoules. The disadvantages are high cost, numerous steps, and large footprint. Research estimates suggest a minimum footprint of 10 square meters, an investment of at least 800,000 yuan in the drying machine, and approximately 100,000 yuan in installation and verification costs (including site construction and cable installation). Each batch of products requires manual transfer in and out, taking at least 15 minutes per batch. The drying time is approximately 2 hours, matching the filling line, with an average power consumption of 20 kilowatts and an electricity consumption of 40 kilowatt-hours per batch. On-site implementation would be very difficult.

[0129] Option 2: After sterilization, without removing the product from the evaporator, manually start the relevant valves, circulation pump 3, and rotary reduction motor 18, rinse with purified water 3 times, then raise the temperature to 55-60 degrees Celsius and allow it to equilibrate for a certain period of time. This temperature will not affect the product quality. After removing the product from the evaporator, there is no need to rinse with purified water again; simply place it on the evaporator bottle with the remaining water. Each batch is cleaned 3 times, taking an additional 24 minutes. Each water injection, circulation cleaning, and drainage takes 2 minutes, 3 minutes, and 3 minutes respectively. During cleaning, circulation pump 3 and the rotary motor work, theoretically running for 9 minutes. The theoretical energy consumption is 9 minutes / batch * (15 kW (circulation pump 3 power) + 3 kW (rotary motor power)) * 1 hour / 60 minutes * 0.8 (motor power) = 3.16 kWh. The amount of purified water used is less than that used for manual rinsing. The product heating time inside the cabinet is about 30 seconds, and the equilibrium time is about 2 minutes. The steam energy consumed is: about 300 kg of purified water, 300 kg of medicine, and 100 kg of packaging materials inside the cabinet. All three are calculated based on the specific heat of water of 4.2 kJ / kg Celsius. The weight of the sterilization cart and the rotating metal inside the cabinet is about 1000 kg, with a specific heat of 0.46 kJ / kg Celsius. The maximum temperature rise is 60 degrees - 23 degrees (purified water temperature) = 37 degrees. The total energy required is 700 kg * 4.2 kJ / kg°C * 37°C + 1000 kg * 0.46 kJ / kg°C * 37°C = (108780 + 17020) kJ = 125800 kJ = 34.94 kWh. Option 1 consumes 40 kWh, and Option 2 consumes 2.16 + 34.94 = 37.1 kWh. The energy consumption of the two options is not significantly different. Option 2 has no investment risk, so we will try it first. The time spent cleaning and heating in the sterilizer, plus the time spent on the original sterilization procedure, does not exceed 2 hours, which does not affect the efficiency of the entire production line. The bottleneck of the entire production line lies in the preparation and filling processes. The experimental results met our expectations. The products, placed in the cooling area, allowed residual water on the bottles to evaporate naturally due to their own temperature. All ampoules inside the sterilization box naturally evaporated all residual water, fully meeting the requirements for light inspection and packaging. Benefits included reduced time spent by inspection personnel, an approximately 30% increase in inspection efficiency, no additional space or investment, and compliance with packaging quality requirements. The risk was with manual operation option two, which carries the risk of overheating due to differences in personnel skill and responsibility, potentially affecting product quality, and inconsistent time control. Therefore, option three was proposed based on option two.

[0130] Option 3: Merge the manual operation steps of Option 2 into the program. The specific process is as follows: water injection, heating, heat preservation, cooling, drainage, leak detection, cleaning (adding multiple cleaning and drainage steps), heating again, and termination. The key point of merging the program is to start with cleaning. Cleaning: Add purified water to a height H, cleaning time T, drainage level H1, and cleaning times N. Heating: Inject purified water into the sterilizer to the same height as the first water injection, heat to TH1 and stop, then depressurize to 10 kPa after equilibration time T1 to terminate the program. The parameters H, T, H1, TH1, and T1 are made available for management and modification. After modification, the temperature and pressure curves are reflected in reports and trend charts, and product quality is tracked. Modifying the program requires no capital investment, and the overall time control is more accurate.

[0131] Therefore, this embodiment provides a specific process for implementing Scheme 3.

[0132] First, the products to be processed are placed into sterilization boxes, which are then placed into sterilization carts. The sterilization carts are then pushed into the sterilization cabinet. After closing the front and rear doors of the sterilization cabinet and ensuring an effective seal, the operator, after confirming that the batch number and other relevant production information are correct, starts the preset sterilization program.

[0133] Water injection stage: The control system opens the water injection valve 16 to inject purified water into the sterilization cabinet until the liquid level reaches the preset height, and then automatically closes the water injection valve 16.

[0134] During the heating phase: The system automatically opens the reversing valve 22 and starts the circulating pump 3 and the rotary geared motor 18, causing the product to begin rotating within the chamber and the water inside to begin circulating. Subsequently, the large steam valve 11 and the small steam proportional valve 12 (usually set to 100% opening) are opened, and the condensate bypass valve is also opened to quickly discharge the initial condensate, accelerating the heating process. When the temperature at each point inside the chamber (e.g., as measured by temperature probes T1-T4) reaches a relatively high set value (e.g., above 90°C), the control system automatically closes the condensate bypass valve and opens the drain valve 6, allowing the condensate to be discharged through the drain valve 6 to maintain the steam pressure inside the heat exchanger 4 and improve thermal efficiency. As the temperature inside the chamber gradually rises and approaches the target sterilization temperature, the control system closes the large steam valve 11 according to a preset program and automatically adjusts the opening of the small steam proportional valve 12 based on feedback signals from the control temperature probes (e.g., TL and TH) to achieve precise control of the heating rate and a smooth transition to the heat preservation phase.

[0135] The heat preservation (sterilization) stage will proceed according to the set heat preservation time and cumulative thermodynamic lethality (F0 value). The internal temperature is precisely maintained within the sterilization temperature range by the control system automatically adjusting the opening of the small steam proportional valve 12 based on feedback from the TL and TH probes. Once the heat preservation time or F0 value reaches the preset target, the sterilization program automatically switches to the cooling stage.

[0136] Cooling Phase: The control system first closes the steam trap 6 and the small steam proportional valve 12 to stop the steam supply. Then, it opens the small cooling water valve 9 and the corresponding drain cooling water valve to begin initial, gradual cooling. When the temperature at each point in the chamber (T1-T4) drops to a preset value, the system automatically opens the large cooling water valve 10 to accelerate the cooling process. The cooling water carries away the heat from the sterilization chamber 1 through the heat exchanger 4 and is discharged through the drain cooling water valve. Once the temperature inside the chamber drops to the final set cooling target value, the control system stops the operation of the circulating pump 3 and the rotary geared motor unit 18, and closes the small cooling water valve 9 and the large cooling water valve 10.

[0137] Drainage Stage: After cooling is complete, the control system opens the drain valve 17 to drain the water from the sterilization chamber 1. During this process, an appropriate amount of compressed air is supplied to the chamber via the automatic on / off compressed air valve 14 to maintain a certain positive pressure, thereby accelerating the drainage of water. When the liquid level is detected to be lower than a certain set value and after a certain delay, the control system closes the drain valve 17 and the compressed air valve 14.

[0138] Negative pressure leak detection: First, start the vacuum pump assembly 20 (connect the vacuum pump power supply and open the vacuum valve 25) to evacuate the sterilization chamber 1. When the pressure inside the chamber reaches the negative pressure value set by the process and is maintained for the set time, the control system stops the vacuum pump and closes the vacuum valve 25.

[0139] Color water injection and positive pressure leak detection: Start the color water system (including connecting the power supply to the color water pump 26 and opening the color water inlet valve 24), and pump the color water pump 26 from the color water storage tank 19 into the sterilization chamber 1 until the liquid level reaches the preset height (usually requiring the entire product to be submerged). Then, stop the operation of the color water pump 26 and close the color water inlet valve 24. Subsequently, open the compressed air valve 14 to fill the chamber with compressed air, raising the pressure inside the chamber to the positive pressure value required by the process, and then close the compressed air valve 14. Maintain this positive pressure for the set time.

[0140] Colored water recovery: After the positive pressure maintenance ends, the control system opens the colored water return valve 23, closes (or switches) the reversing valve 22, and starts the circulation pump 3 to return the colored water pump 26 in the sterilization chamber 1 to the colored water storage tank 19. When the liquid level drops to the lowest point, the circulation pump 3 stops running, and the reversing valve 22 is reset (or switched back to the normal circulation path).

[0141] During the entire negative and positive pressure holding phase, the control system monitors the pressure inside the chamber. If the pressure deviates from the set range, relevant components (such as the air compression valve 14 or the vacuum valve 25) will automatically perform pressure replenishment or vacuum replenishment actions.

[0142] Cleaning Phase (Multiple Cycles): After leak detection, the control system opens the water injection valve 16, injecting purified water into the sterilizer to the preset cleaning height (H). Then, the circulation pump 3 and the rotary geared motor unit 18 are started, using the circulating water and product rotation to rinse away residual colored water (or other residues) on the surface of ampoules and other products. This process continues for a set cleaning time (T). After the cleaning time is reached, the circulation pump 3 and the rotary geared motor unit 18 are stopped. Next, the drain valve 17 is opened, and the compressed air valve 14 is opened to maintain appropriate pressure within the chamber to accelerate drainage. When the liquid level reaches the set low level (H1), the drain valve 17 and the compressed air valve 14 are closed. The above cleaning process from water injection to drainage will be automatically repeated a preset number of times (N times, e.g., 3 times) to ensure cleaning effectiveness.

[0143] Heating Phase: After multiple cleaning cycles, the control system reopens the water injection valve 16 to inject purified water into the sterilizer, maintaining the same level as during the first heating (or sterilization) cycle. Subsequently, the circulation pump 3 and rotary motor are started, and the small steam proportional valve 12 is opened to heat the water and product within the chamber. When the temperature (e.g., detected by the TH probe) reaches the final target setting, the small steam proportional valve 12 is closed. The product equilibrates at this temperature for a preset time (T1). Afterward, the exhaust valve 15 is opened to reduce the pressure inside the sterilizer to near atmospheric pressure (e.g., below 10 kPa), at which point the program automatically enters the end state.

[0144] Final Stage: At this point in the program, all relevant valves automatically reset to their initial state, and all pumps (circulation pump 3, colored water pump 26, vacuum pump, etc.) stop operating. Finally, after the operator confirms that the program has completely stopped, they manually open the sterilization cabinet door and remove the processed products from the sterilization cabinet using a sterilization cart.

[0145] The entire sterilization process is automated, with no human intervention. It automatically completes water injection, heating, heat preservation, cooling, drainage, leak detection, cleaning, heating, and process termination. There is audit tracking, reports, and trend charts to record the process, ensuring sterilization quality.

[0146] The site is compact, requiring no extra investment in equipment. Products can be placed in the cooling area for about an hour, just like before, until no residual water remains. After the products are removed from the sterilizer, there is no residual colored water, and the temperature outside the sterilizer is maintained at 50-55 degrees Celsius, which facilitates the natural evaporation of residual water on the ampoules. They only need to be naturally stored in the general cooling area at a temperature of 10-30 degrees Celsius and a humidity of 30-75%RH for about an hour, one hour less than the previous two hours, until all residual water has evaporated. This eliminates the need for fans to blow away water, saving energy and keeping the site clean.

[0147] The efficiency of light inspection personnel has increased by 30%, ensuring the quality of packaging and labeling. It saves labor costs associated with manual cleaning of residual color water from traditional sterilization processes, saving space and eliminating the need for manual wiping. The number of light inspectors has been reduced from 8 to 6 for inspecting the same quantity of products. It also eliminates the problem of labels falling off or being misaligned due to residual water, thus improving production efficiency and saving packaging personnel the time previously spent checking for missing labels.

[0148] In the description of this specification, the references to terms such as "one embodiment / mode," "some embodiments / modes," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment / mode or example is included in at least one embodiment / mode or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment / mode or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments / modes or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments / modes or examples described in this specification, as well as the features of different embodiments / modes or examples.

[0149] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0150] Those skilled in the art should understand that the above embodiments are merely for clearly illustrating the present invention and are not intended to limit the scope of the present invention. For those skilled in the art, other changes or modifications can be made based on the above-described invention, and these changes or modifications still fall within the scope of the present invention.

Claims

1. An integrated rotary sterilization cabinet characterized in that, include: The sterilizer body defines a sterilization chamber (1) for placing the product to be processed. The temperature control circulation system includes a heat exchanger (4), the primary side inlet of the heat exchanger (4) is connected to a steam supply pipeline and a cooling water supply pipeline, the primary side outlet of the heat exchanger (4) is connected to a drain pipeline, the secondary side outlet of the heat exchanger (4) is connected to the upper inlet of the sterilization chamber (1), and the secondary side inlet of the heat exchanger (4) is connected to the lower inlet of the sterilization chamber (1) through a circulation pump (3). The temperature control circulation system is used to heat up, keep warm and cool down the medium in the sterilization chamber (1). A rotating system is provided inside the sterilization chamber (1) and is used to rotate the product to be processed; A detection system for detecting operating parameters within the sterilization chamber (1); A control system is electrically connected to the actuator of the temperature control circulation system, the rotation system, and the detection system, and is used to coordinate the operation of the temperature control circulation system and the rotation system based on signals acquired from the detection system.

2. A combined rotary sterilizing chamber according to claim 1, characterized in that The temperature control circulation system also includes at least one nozzle, which is located on the upper part of the sterilization chamber (1) and sprays towards the product to be processed located in the sterilization chamber (1). The nozzle is connected to the secondary outlet of the heat exchanger (4) through the upper inlet of the sterilization chamber (1).

3. A combined rotary sterilizing chamber according to claim 1, characterized in that, The steam supply pipeline includes a large steam pipeline and a small steam pipeline connected in parallel. The inlet ends of the large steam pipeline and the small steam pipeline are connected to industrial steam, and the outlet ends of the large steam pipeline and the small steam pipeline are connected to the primary side inlet of the heat exchanger (4). A large steam valve (11) is installed on the large steam pipeline, and a small steam proportional valve (12) is installed on the small steam pipeline.

4. A combined rotary sterilization cabinet according to claim 1, characterized in that The cooling water supply pipeline includes a large cooling water pipeline and a small cooling water pipeline connected in parallel. The inlet ends of the large cooling water pipeline and the small cooling water pipeline are connected to cooling water, and the outlet ends of the large cooling water pipeline and the small cooling water pipeline are connected to the primary side inlet of the heat exchanger (4). A large cooling water valve (10) is installed on the large cooling water pipeline, and a small cooling water valve (9) is installed on the small cooling water pipeline.

5. A combined rotary sterilization cabinet according to claim 1, characterized in that The drainage pipeline includes a cooling water drainage pipeline and a condensate drainage pipeline, the inlet ends of which are connected to the primary side outlet of the heat exchanger (4). A drain valve (8) is installed on the cooling water drain pipe. The condensate drain pipeline includes a bypass pipeline and a drain pipeline connected in parallel. The inlet ends of the bypass pipeline and the drain pipeline are both connected to the primary side outlet of the heat exchanger (4). A drain bypass valve (7) is provided on the bypass pipeline, and a condensate valve (5) and a drain valve (6) are provided on the drain pipeline in sequence.

6. A combined rotary sterilization cabinet according to claim 1, characterized in that A reversing valve (22) is provided between the circulating pump (3) and the secondary side inlet of the heat exchanger (4). The sterilization cabinet also includes a leak detection system, which includes a color water pipeline system, a vacuum pipeline system and a compressed air pipeline system. The actuator of the leak detection system is electrically connected to the control system. The colored water pipeline system includes a colored water storage tank (19) and a colored water pump (26). The outlet of the colored water storage tank (19) is connected to the pipeline between the circulation pump (3) and the sterilization chamber (1) through the colored water pump (26) and the colored water inlet valve (24). The inlet of the colored water storage tank (19) is connected back to the colored water valve (23) and then connected to the pipeline between the circulation pump (3) and the reversing valve (22). The colored water pipeline system is used to inject and recover colored water into the sterilization chamber (1). The vacuum pipeline system includes a vacuum pumping unit (20), which is connected to a vacuum pumping valve (25) and then to the sterilization chamber (1). The vacuum pipeline system is used to evacuate the sterilization chamber (1). The compressed air pipeline system includes a pressurization pipeline and an exhaust pipeline. Both the pressurization pipeline and the exhaust pipeline are connected to the sterilization chamber (1). The inlet end of the pressurization pipeline is connected to compressed air. A compressed air valve (14) is provided on the pressurization pipeline, and an exhaust valve (15) is provided on the exhaust pipeline. The compressed air pipeline system is used to apply positive pressure to the sterilization chamber (1) and to discharge compressed air.

7. A comprehensive rotary sterilizer according to claim 1, characterized in that, It also includes a cleaning system, which includes a purified water injection pipeline and an exhaust pipeline, and the actuating components of the cleaning system are electrically connected to the control system. Both the purified water injection pipeline and the discharge pipeline are connected to the lower inlet of the sterilization chamber (1). The inlet end of the purified water injection pipeline is connected to purified water. A water injection valve (16) is provided on the purified water injection pipeline, and a discharge valve (17) is provided on the discharge pipeline.

8. A combined rotary sterilization cabinet according to claim 1, characterized in that The rotating system includes multiple balancing support wheels, a roller, and a rotary reduction motor. The multiple balancing support wheels are fixedly installed at the bottom of the sterilization chamber (1). The roller is rotatably installed on the balancing support wheels. A toothed ring is provided on the outer side of the roller. The power output end of the rotary reduction motor meshes with the toothed ring through an output gear and drives the roller to rotate.

9. A combined rotary sterilizing cabinet according to claim 8, characterized in that The lower interior of the drum is provided with a slide rail that matches the wheels of the sterilization cart. The upper interior of the drum is provided with a pressure plate that can move up and down. The pressure plate is used to fix the sterilization cart loaded on the slide rail inside the drum when it moves down.

10. A comprehensive rotary sterilization cabinet according to claim 1, characterized in that, The detection system includes a temperature detection group, a liquid level detection group (21) and a water quality detection group (27). The liquid level detection group (21) is used to detect the liquid level in the sterilization chamber (1), and the water quality detection group (27) is used to detect the water quality of the circulating water in the sterilization chamber (1). The temperature detection group includes: TD temperature probe (29) used to detect the reference temperature at the highest point in the sterilization chamber (1); a TH temperature probe (28) for detecting the temperature at the first access opening (13) of the sterilization chamber (1); a TL temperature probe (30) for detecting the temperature at the second access opening (2) of the sterilization chamber (1); a plurality of Tn temperature probes (31) for detecting the actual temperature distribution inside the sterilization chamber (1), the plurality of Tn temperature probes (31) being distributed at different positions inside the sterilization chamber (1).

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