Independent sealing controlled atmosphere regulation and control system and method for single storage roadway based on dense storage system

Abstract

The invention discloses a dense storage system-based single-storage roadway independent sealing controlled atmosphere regulation and control system and a dense storage system-based single-storage roadway independent sealing controlled atmosphere regulation and control method. The system is applied to a dense storage system with a plurality of parallel storage roadways, and comprises a single-seal storage roadway unit independently arranged for each roadway, a controlled atmosphere regulation and control execution unit corresponding to the single-seal storage roadway unit, and a central control unit. The single-seal storage roadway unit forms an independent closed space through a sealing structure capable of being opened / closed, and an environment monitoring unit for monitoring the oxygen concentration, the carbon dioxide concentration, the ethylene concentration, the temperature and the humidity is arranged in the single-seal storage roadway unit. The central control unit controls gas replacement, circulation and temperature and humidity adjustment of all the storage roadway units according to real-time monitoring data and is in cooperative linkage with the stacking machine or shuttle vehicle storing and taking operation, and efficient sealing management in the operation period is achieved. According to the invention, precise and differentiated controlled atmosphere environment control of a single roadway is realized, energy consumption is obviously reduced, and high compatibility of environment control precision and an efficient operation mode of dense storage is realized.

Description

Technical Field

[0001] This invention belongs to the field of warehousing and logistics technology, specifically relating to an independent sealed controlled atmosphere control system and method for a single storage lane based on a dense storage system. Background Technology

[0002] With the development of modern logistics and warehousing technologies, high-density storage technologies have been widely used due to their ability to achieve high-capacity storage within limited spaces, such as automated storage and retrieval systems (AS / RS) and shuttle racking systems. However, in certain specific industry applications, such as food (especially perishable foods and high-end agricultural products), pharmaceuticals, tobacco, precision instruments, and cultural relics and archives, where strict requirements are placed on the temperature, humidity, and gas composition (such as oxygen, carbon dioxide, and ethylene) of the storage environment, conventional high-density storage systems struggle to meet their long-term, stable, and precise environmental control needs. In existing technologies, controlled atmosphere storage is typically achieved by controlling the atmosphere of the entire warehouse or a large area. This approach has the following drawbacks:

[0003] 1. High energy consumption: Large-space controlled atmosphere requires a large amount of energy to maintain the gas concentration, temperature and humidity of the entire space, resulting in high operating costs.

[0004] 2. Low control precision: The gas mixing is uneven in a large space, and the temperature and humidity fluctuate greatly, making it difficult to achieve precise environmental control for specific items.

[0005] 3. Poor flexibility: Different items may require different controlled atmosphere parameters, and uniform control in a large space cannot meet the differentiated needs.

[0006] 4. Poor compatibility with dense storage: The spatial layout and sealing requirements of traditional controlled atmosphere warehouses may conflict with the high-density, high-efficiency access operations of dense storage, affecting operational efficiency or increasing renovation costs.

[0007] 5. Although some existing dense storage systems take environmental control into account, they are mostly simple temperature and humidity control, lack the ability to precisely adjust specific gas components, and have not achieved independent sealing and controlled atmosphere of individual tunnels.

[0008] Therefore, how to design a system that is highly compatible with dense storage systems and can independently seal and precisely regulate the atmosphere of individual storage lanes, so as to reduce energy consumption, improve control accuracy and flexibility, and ensure the efficient operation of dense storage, is a technical problem that urgently needs to be solved.

[0009] To address the aforementioned problems, this invention is proposed. Summary of the Invention

[0010] To overcome the shortcomings of the prior art, the present invention adopts the following technical solution:

[0011] This invention provides a single-storage-lane independent sealed controlled atmosphere control system based on a dense storage system, applicable to a dense storage system comprising at least two parallel storage lanes, each storage lane equipped with racks and a stacker crane and / or shuttle for storage and retrieval operations. The control system includes:

[0012] At least one single-sealed storage tunnel unit is used to create a sealed space independent of adjacent storage tunnels under controlled atmosphere conditions, wherein the single-sealed storage tunnel unit comprises:

[0013] An openable / closeable sealing structure is provided at the entrance and / or side wall of the single sealed storage tunnel unit;

[0014] An environmental monitoring unit is installed within the single sealed storage tunnel unit to collect environmental parameters including at least oxygen concentration, carbon dioxide concentration, ethylene concentration, temperature, and relative humidity.

[0015] Each of the gas atmosphere control actuators is connected to the single sealed storage tunnel unit via a sealed connection structure to independently perform gas replacement, gas circulation, temperature regulation, and humidity regulation within the sealed space of the single sealed storage tunnel unit. The sealed connection structure may include a sealing flange and a connecting pipe. One end of the connecting pipe is connected to the gas atmosphere control actuator, and the other end is fixed and sealed through the side wall or top plate of the single sealed storage tunnel unit via the sealing flange, thereby ensuring that the airtight integrity of the sealed space is not compromised while gas and signal transmission is achieved.

[0016] The central control unit is communicatively connected to the openable / closeable sealing structure, the environmental monitoring unit, and the atmosphere control execution unit, respectively. It is used to control the opening and closing of the openable / closeable sealing structure, and independently control the operation of the atmosphere control execution unit of the corresponding storage tunnel according to the environmental parameters collected by the environmental monitoring unit, thereby triggering sealing and atmosphere control.

[0017] Preferably, the control system further includes an auxiliary support unit, the auxiliary support unit comprising:

[0018] The power supply module provides a stable power supply to the control system;

[0019] The safety protection module includes equipment fault alarms and an emergency stop button to ensure the safe and stable operation of the system.

[0020] Communication module: used for data exchange between the central control unit and the openable / closeable sealing structure, environmental monitoring unit, and atmosphere control execution unit.

[0021] Preferably, the openable / closeable sealing structure includes: a high-speed rolling door, a sliding sealing door, or an inflatable sealing door, and the single opening or closing time of the openable / closeable sealing structure is no more than 5 seconds.

[0022] Preferably, the environmental monitoring unit includes multiple oxygen sensors, carbon dioxide sensors, ethylene sensors, and temperature and humidity sensors distributed along the length of the storage tunnel.

[0023] Preferably, the atmosphere control unit includes: a gas replacement subsystem, a gas circulation system, and a temperature and humidity control system.

[0024] Preferably, the gas replacement subsystem includes: a vacuum pump, an inlet valve group, an exhaust valve group, and a gas mixing device. The inlet valve group includes nitrogen and / or carbon dioxide inlet ports and valves. The gas circulation system includes a circulating fan, a gas guide plate, and an air duct. The temperature and humidity control system includes a refrigeration unit, a heating device, a dehumidifier, a humidifier, an evaporator, and a condenser.

[0025] Preferably, the central control unit further includes a human-machine interface, a controller, a data storage unit, and a data analysis unit; the controller is a programmable logic controller or an industrial computer.

[0026] Another aspect of the present invention provides a control method based on the control system, the method comprising the following steps:

[0027] a) Initialization and target setting: Target controlled atmosphere parameters are set for each single sealed storage tunnel unit through the human-machine interface in the central control unit. The environmental parameters include oxygen concentration, carbon dioxide concentration, ethylene concentration, temperature and relative humidity.

[0028] b) Storage tunnel unit sealing: When it is necessary to perform controlled atmosphere operation on the storage tunnel unit, the controller sends a signal command to close the openable / closeable sealing structure at its entrance and / or side wall position, forming an independent sealed space;

[0029] c) Real-time monitoring of environmental parameters: Real-time environmental parameters in each single sealed storage tunnel unit are continuously collected through oxygen sensors, carbon dioxide sensors, ethylene sensors, and temperature and humidity sensors, and the data is transmitted to the central control unit;

[0030] d) Data analysis and controlled atmosphere control execution: The controller compares and analyzes the received real-time environmental parameter information with the target controlled atmosphere parameter information through the data analysis unit to determine whether the real-time environmental parameter information and the target controlled atmosphere parameter information are the same. If they are different, compensation control is performed.

[0031] e) Storage and retrieval operation coordination: When a storage and retrieval operation instruction is received from the stacker crane and / or shuttle, the controller coordinates the opening and closing of the openable / closeable sealing structure to ensure that the aisle is in a non-completely sealed state during the operation, and quickly restores the seal after the operation is completed and performs the environmental parameter compensation and adjustment in step d.

[0032] f) Status monitoring and alarm: The safety protection module monitors the operating status of each device in real time. If a device malfunction occurs, it immediately issues an audible and visual alarm signal and records the fault information.

[0033] g) Data recording and feedback: The system automatically records key operations, changes in environmental parameters, equipment operating status and other data to the data storage unit.

[0034] Preferably, the compensation regulation in step d is as follows:

[0035] If the real-time oxygen concentration is lower than the target value, the gas replacement subsystem is activated to fill the single-seal storage tunnel unit with oxygen through the intake valve group until the oxygen concentration reaches the target value; if the real-time oxygen concentration is higher than the target value, the gas replacement subsystem is activated to discharge some of the air in the single-seal storage tunnel unit through the vacuum pump and exhaust valve group, and to fill the single-seal storage tunnel unit with nitrogen through the intake valve group until the oxygen concentration reaches the target value.

[0036] If the real-time carbon dioxide concentration is lower than the target value, the gas replacement subsystem is activated, and carbon dioxide is introduced into the single-sealed storage tunnel unit through the air intake valve group until the carbon dioxide concentration reaches the target value; if the real-time carbon dioxide concentration is higher than the target value, the gas replacement subsystem is activated, and some of the air in the single-sealed storage tunnel unit is discharged through the vacuum pump and exhaust valve group, and nitrogen is introduced into the single-sealed storage tunnel unit through the air intake valve group until the carbon dioxide concentration reaches the target value.

[0037] If the real-time ethylene concentration is higher than the target value, the gas replacement subsystem is activated to introduce nitrogen into the single-sealed storage tunnel unit through the inlet valve group, or to discharge part of the gas in the single-sealed storage tunnel unit through the vacuum pump and exhaust valve group until the ethylene concentration reaches the target value.

[0038] If the real-time temperature is higher than the target value, the refrigeration unit and condenser in the temperature and humidity control system will be activated until the temperature reaches the target value; if the real-time temperature is lower than the target value, the heating device in the temperature and humidity control system will be activated until the temperature reaches the target value.

[0039] If the real-time relative humidity is higher than the target value, the dehumidifier and evaporator in the temperature and humidity control system will be activated until the relative humidity reaches the target value; if the real-time relative humidity is lower than the target value, the humidifier in the temperature and humidity control system will be activated until the relative humidity reaches the target value.

[0040] Preferably, step d further includes: starting a gas circulation system, which can be started during or after the compensation and control process to ensure the uniformity of gas within the roadway unit.

[0041] The beneficial effects of this invention are:

[0042] 1. The present invention provides a single-lane independent sealed controlled atmosphere control system and method based on a dense storage system. This system seals and controls only the individual lane requiring controlled atmosphere control, avoiding the massive space gas replacement and maintenance energy consumption associated with traditional overall controlled atmosphere control in warehouses. Through targeted treatment, energy consumption is significantly reduced, and operating costs are effectively decreased. Furthermore, the sealing structure opens and closes rapidly (no more than 5 seconds), and combined with coordinated control of storage and retrieval operations, it minimizes the time of controlled atmosphere environment disruption caused by operations, reducing the additional energy consumption for environmental restoration.

[0043] 2. The single-lane independent sealed controlled atmosphere system and method based on a dense storage system provided by this invention features a relatively independent and limited-volume single-lane space. Combined with an efficient gas circulation system, this allows for rapid and uniform mixing of gas components (O2, CO2, C2H4) and temperature and humidity within a short time, avoiding environmental gradient problems that are prone to occur in large spaces. Each lane forms an independent sealed control unit, with environmental parameters that do not interfere with each other. These parameters can be precisely set and maintained according to the needs of the internal goods, resulting in high system stability, making it particularly suitable for long-term storage of environmentally sensitive items.

[0044] 3. In the single-storage-lane independent sealed controlled atmosphere control system and method based on dense storage system provided by the present invention, different lanes can be independently set and maintained with different controlled atmosphere environmental parameters (such as low oxygen, high carbon dioxide, specific temperature and humidity), realizing refined and differentiated control of storing a variety of goods with different requirements in the same dense warehouse.

[0045] 4. In the single-storage aisle independent sealed controlled atmosphere control system and method based on a dense storage system provided by this invention, the central control unit can intelligently coordinate the opening and closing of the sealed doors and the storage and retrieval commands of the stacker crane / shuttle car, ensuring efficient operation while maximizing the airtightness of the aisle, thus resolving the contradiction between controlled atmosphere storage and high-frequency storage and retrieval operations. It fully considers the physical layout and operation process of the dense storage system; the arrangement of the sealing structure, monitoring, and execution units does not affect the rack density and equipment operation, achieving an organic unity between controlled atmosphere function and storage efficiency.

[0046] 5. The present invention provides a single-storage-lane independent sealed atmosphere control system and method based on a dense storage system, which integrates multiple environmental parameter monitoring, data analysis units and intelligent controllers. The system can sense environmental changes in real time, automatically compare target parameters and trigger precise compensation control, so as to realize unattended closed-loop control.

[0047] The system comprehensively records environmental data, equipment status, and operation logs. Through a human-machine interface, it provides real-time monitoring and historical data analysis, offering data support for storage optimization, fault warning, and quality management, thereby improving the informatization and scientific level of management. Attached Figure Description

[0048] Figure 1 The flowchart illustrates an independent sealed atmosphere control method for a single storage tunnel based on a dense storage system, as provided by this invention. Detailed Implementation

[0049] The present invention will now be described in further detail with reference to the embodiments.

[0050] Those skilled in the art will understand that the following embodiments are for illustrative purposes only and should not be construed as limiting the scope of the invention. Where specific techniques or conditions are not specified in the embodiments, they are performed in accordance with the techniques or conditions described in technical literature in the field or according to product instructions. Materials or equipment whose manufacturers are not specified are all conventional products that can be obtained by purchase.

[0051] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. In the description of this invention, unless otherwise stated, “a plurality” means two or more. It should be further understood that the term “comprising” as used in this specification means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0052] Example 1:

[0053] Embodiment 1 of the present invention

[0054] An independent sealed controlled atmosphere system for a single storage aisle, based on a dense storage system, is applied in an automated storage and retrieval system (AS / RS) containing three parallel storage aisles (aisle 1, aisle 2, and aisle 3). Each aisle is equipped with shelving and a stacker crane for storage and retrieval operations.

[0055] The system is structured as follows:

[0056] Single-sealed storage tunnel unit: One unit is set up for each tunnel. Taking tunnel one as an example, its unit includes:

[0057] Openable / closable sealing structure: A high-speed rolling shutter sealing door is installed at the aisle entrance. This door is driven by a servo motor, with a single opening or closing time of ≤3 seconds, and can be linked with stacker crane signals. The top and sidewall non-load-bearing areas of the aisle unit are supplemented with flexible sealing curtains, forming a sealed space together with the racking structure.

[0058] Environmental monitoring units are distributed along the length of the aisle. Oxygen sensors, carbon dioxide sensors, and temperature and humidity sensors are installed on the shelf uprights at the front, middle, and rear of the aisle, respectively; an ethylene sensor is added in the middle to monitor the concentration of ethylene gas released by fruits and vegetables. All sensors are connected via a bus.

[0059] Controlled atmosphere control execution unit: Each single-sealed storage tunnel unit is equipped with an independent set for controlling the internal environment of the corresponding tunnel. Taking the execution unit of tunnel one as an example, it includes:

[0060] Gas replacement subsystem: includes a vacuum pump (for active exhaust), an intake valve group (including a nitrogen intake valve and a carbon dioxide intake valve, which are connected to the nitrogen source and carbon dioxide source respectively), and a corresponding exhaust valve group.

[0061] Gas circulation system: A circulating fan and a matching gas guide plate are installed at the top of the tunnel to force air circulation in the tunnel and ensure uniform gas composition, temperature and humidity.

[0062] Temperature and humidity control system: The system adopts an embedded air conditioning unit that integrates cooling, heating, dehumidification (through condensation) and humidification (ultrasonic humidification) functions, and delivers the treated air into the tunnel through the air duct.

[0063] Central Control Unit: This unit utilizes an industrial computer as the core controller, equipped with a touchscreen human-machine interface, a data storage server, and data analysis software. It communicates via industrial Ethernet with the sealing door controllers of all aisles, the sensors in the environmental monitoring unit, and the actuators (such as vacuum pumps, valves, fans, and air conditioning units) of the atmosphere control unit. Simultaneously, this unit communicates with the warehouse management system to receive storage and retrieval operation instructions.

[0064] like Figure 1 As shown, the specific process of the control method is as follows:

[0065] When a batch of blueberries needs to be stored in a controlled atmosphere storage facility in a passageway:

[0066] a) Initialization and target setting: The operator selects "Lane 1" on the touch screen and sets the target environmental parameters: oxygen concentration 5%, carbon dioxide concentration 12%, temperature 0℃, relative humidity 90%, and ethylene concentration 1%.

[0067] b) Storage aisle unit sealing: After the stacker crane completes the goods storage and exits the aisle, the controller immediately sends a signal command, and the fast rolling shutter sealing door closes within 3 seconds, forming an independent and sealed space in the aisle.

[0068] c) Real-time monitoring of environmental parameters: The environmental monitoring unit in the tunnel starts working, continuously collecting and uploading data on oxygen, carbon dioxide, temperature and humidity at 1-minute intervals.

[0069] d) Data Analysis and Controlled Atmosphere Execution: The central control unit's analysis software detected a real-time oxygen concentration of 21% (atmospheric level), higher than the target value; a real-time carbon dioxide concentration of 0.04% (atmospheric level), lower than the target value; and an ethylene concentration of 2%, higher than the target value. The controller then activated the gas replacement subsystem for compensation and control: the exhaust valve was opened and the vacuum pump was started to expel some air. Simultaneously, the nitrogen inlet valve was opened to introduce nitrogen into the tunnel. The carbon dioxide inlet valve was opened to introduce carbon dioxide into the tunnel. During this process, the circulating fan was started simultaneously to promote the mixing of nitrogen, carbon dioxide, and air. Through real-time monitoring feedback, when the oxygen concentration dropped to 5%, the ethylene concentration dropped to 1%, and the carbon dioxide concentration rose to 12%, the vacuum pump, carbon dioxide inlet valve, and nitrogen inlet valve were closed, and the replacement stopped. At the same time, the temperature and humidity control system was activated, lowering the temperature from 15°C upon entry into the warehouse to 0°C, and raising the humidity to 90% through the air conditioning unit.

[0070] e) Collaborative Storage and Retrieval Operations: Three days later, the warehouse management system issued an instruction to remove a portion of blueberries from aisle one. Upon receiving the instruction, the central control unit first paused the controlled atmosphere process in aisle one, then opened the high-speed rolling shutter sealing door. During the process of the stacker crane entering and completing the outbound operation, the aisle remained ventilated. After the operation was completed, the stacker crane withdrew, the sealing door immediately closed, and the system automatically detected that the oxygen concentration had risen to 8% due to the door opening, the temperature had risen to 15°C, the humidity had decreased to 75%, and the carbon dioxide concentration had decreased to 10%. The gas replacement subsystem was then restarted for rapid exhaust and replenishment, quickly restoring the carbon dioxide concentration to the target value of 12% and the oxygen concentration to the target value of 5%. Simultaneously, the temperature and humidity control system was activated, quickly lowering the temperature to 0°C and raising the humidity to 90%.

[0071] f) Status monitoring and alarm: During operation, if the central control unit does not receive the signal from the carbon dioxide sensor, an alarm message indicating that the sensor is faulty will pop up on the touch screen, and an audible and visual alarm signal will be issued immediately, and the fault information will be recorded.

[0072] g) Data recording and feedback: Throughout the process, all setting parameters, real-time monitoring data, equipment start-up and shutdown actions, and alarm events are recorded in the data storage server, forming a traceable data log.

[0073] Comparative Example 1 (Traditional Large Warehouse Overall Controlled Atmosphere)

[0074] A traditional dense storage controlled atmosphere system is applied to a warehouse with three parallel storage aisles. The system treats the entire warehouse (including all aisles and internal passages) as a single large controlled atmosphere space.

[0075] The system is structured as follows:

[0076] The entire structure is sealed: only one large sliding sealed door is installed at the warehouse's goods entrance and exit, taking approximately 60 seconds to open and close once. The three aisles are completely interconnected, as are the aisles and the public area, with no gaps or seals.

[0077] Environmental monitoring unit: A few monitoring points are evenly distributed within the warehouse space (e.g., in the center or at both ends of the warehouse), and oxygen sensors, carbon dioxide sensors, ethylene sensors, temperature sensors, and humidity sensors are installed.

[0078] Controlled atmosphere control unit: The entire warehouse shares a single large controlled atmosphere unit, including a high-power nitrogen generator, a CO2 supply unit, a large refrigeration unit, and humidification and dehumidification equipment. The treated gas is transported to various areas of the warehouse through the main duct.

[0079] Central control unit: controls the parameters of the overall environment, but cannot independently adjust a specific area.

[0080] Regulation methods and their shortcomings:

[0081] When only controlled atmosphere storage is needed for aisle one, requiring low temperature, low oxygen, and high humidity, the entire warehouse space must undergo deoxygenation, cooling, and humidification treatments. Due to the enormous volume, the initial gas replacement takes approximately 15 hours, resulting in extremely high energy consumption. Simultaneously, other goods stored in aisles two and three, such as nuts, which only require room temperature and low humidity storage, are also subjected to unnecessarily high humidity and low temperature environments, causing mutual interference. When outbound operations are needed from aisle one, the entire sealed warehouse doors must be opened, completely disrupting the controlled atmosphere environment. The recovery time is extremely long, further drastically increasing energy consumption. Furthermore, due to the limited number of monitoring points and the large space, significant gradients exist in temperature, humidity, and gas concentration at different locations, resulting in low control precision. The system lacks flexibility, cannot meet the differentiated storage needs of different goods, and the storage and retrieval operations cause significant disruption to the controlled atmosphere environment and have a substantial impact on energy consumption.

[0082] Example 2:

[0083] Embodiment 2 of the present invention

[0084] This embodiment demonstrates the application of the present invention in the field of industrial product storage that requires ultra-low humidity and precise atmosphere control.

[0085] Application Scenario: In a dense storage system with four parallel aisles (Aisle 1, Aisle 2, Aisle 3, and Aisle 4), high-value pharmaceutical raw materials that are extremely sensitive to temperature, moisture, and oxidation need to be stored. Aisle 4 is designated for this storage purpose.

[0086] The system configuration is consistent with the core structure of Embodiment 1, but the parameter settings of key components are different:

[0087] Single-sealed storage tunnel unit (tunnel four):

[0088] Sealing structure: The door adopts an inflatable sealing door with a sealing airbag embedded in the door frame. After closing, it inflates to ensure extremely high airtightness and extremely low leakage rate.

[0089] Controlled Atmosphere Execution Unit (corresponding to Lane 4):

[0090] Temperature and humidity control system: Integrating a two-stage compression deep dehumidifier unit and a molecular sieve adsorption drying module, it can control the air humidity in the tunnel to below 1%. The temperature control adopts a high-precision refrigeration system, with temperature fluctuations controlled within ±0.3℃.

[0091] like Figure 1 As shown, the specific process of the control method is as follows:

[0092] a) Setting the target: The operator selects "Lane 4" on the touch screen and sets the target environmental parameters for Lane 4: temperature 12℃, humidity 1%, oxygen concentration 2%.

[0093] b) Storage aisle unit sealing: After the stacker crane completes the goods storage and exits the aisle, the controller immediately sends a signal command, and the inflatable sealing door closes within 3 seconds, forming an independent sealed space in the aisle.

[0094] c) Real-time monitoring of environmental parameters: The environmental monitoring unit in the fourth tunnel starts working, continuously collecting and uploading oxygen, temperature and humidity data at 1-minute intervals.

[0095] d) Data Analysis and Controlled Atmosphere Execution: The analysis software in the central control unit detected a real-time oxygen concentration of 21% (atmospheric level), higher than the target value. The controller then activated the gas replacement subsystem for compensation and control: the exhaust valve was opened and the vacuum pump was started to expel some air. Simultaneously, the nitrogen inlet valve was opened to introduce nitrogen into the tunnel. During this process, the circulating fan was started synchronously to promote the mixing of nitrogen and air. Through real-time monitoring feedback, when the oxygen concentration dropped to 2%, the vacuum pump and nitrogen inlet valve were shut off, and the replacement stopped. At the same time, the temperature and humidity control system was activated, reducing the temperature from 23°C upon entry to 12°C and the humidity to 1%.

[0096] e) Collaborative Storage and Retrieval Operations: Five days later, the warehouse management system issues an instruction to remove a portion of pharmaceutical raw materials from aisle four. Upon receiving the instruction, the central control unit first suspends the controlled atmosphere process in aisle four, then opens the inflatable sealing door. During the process of the stacker crane entering and completing the outbound operation, the aisle remains ventilated. After the operation is completed, the stacker crane exits, the sealing door immediately closes, and the system automatically detects that the oxygen concentration has risen to 10%, the temperature to 16°C, and the humidity to 12% due to the door opening. The system then restarts the gas replacement subsystem for rapid gas replenishment, restoring the oxygen concentration to the target value of 2% within a short time. Simultaneously, the temperature and humidity control system is activated, quickly reducing the temperature to 12°C and the humidity to 1%.

[0097] f) Status monitoring and alarm: During operation, if the central control unit does not receive the signal from the oxygen sensor, an alarm message indicating that the sensor is faulty will pop up on the touch screen, and an audible and visual alarm signal will be issued immediately, and the fault information will be recorded.

[0098] g) Data recording and feedback: Throughout the process, all setting parameters, real-time monitoring data, equipment start-up and shutdown actions, and alarm events are recorded in the data storage server, forming a traceable data log.

[0099] This embodiment achieves the extreme environmental control required for industrial products, proving that the present invention can not only be used for fruit and vegetable preservation, but also meet the stringent requirements of high-tech industries for storage environments.

[0100] Comparative Example 2 (Traditional Integrated Moisture-Proof Cabinet / Storage Unit)

[0101] Traditional system structure and methods:

[0102] Storage facilities: A traditional "integrated moisture-proof box / cabinet warehouse" solution is adopted. This involves building a large, fully sealed warehouse, inside which multiple independent moisture-proof boxes or desiccant cabinets are placed. Goods to be stored are first placed into small desiccant cabinets (containing a small amount of desiccant), and then the desiccant cabinets are placed into the overall warehouse.

[0103] Environmental control:

[0104] Humidity control: The entire warehouse is maintained at a low baseline humidity using a large dehumidifier. However, due to the large space and uneven airflow, humidity differences between different locations are significant (above ±10%RH). The microenvironment within a single drying cabinet depends on the adsorption capacity of its own desiccant, which has limited effectiveness and is uncontrollable and unmonitorable.

[0105] Atmosphere control: Precise atmosphere control is virtually impossible. The common practice is to place small packets of oxygen absorbers (deoxidizers) in the drying cabinet where the most sensitive materials are stored. This is a passive, one-time, and non-adjustable method; oxygen concentration cannot be monitored and maintained in real time, and it is extremely inconvenient for materials requiring frequent handling.

[0106] Temperature control: The entire warehouse is maintained at a base temperature by a central air conditioning system, with an accuracy of ±2℃.

[0107] Storage and retrieval operations: Storing or retrieving any goods requires opening the sealed doors of the large warehouse, causing a rush of high-humidity air from outside. This instantly deteriorates the humidity environment of the entire warehouse, and it takes about 6 hours to restore it to the set value. During this period, all goods are exposed to the risk of humidity fluctuations.

[0108] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A single-storage-lane independent sealed controlled atmosphere control system based on a dense storage system, applied to a dense storage system comprising at least two parallel storage lanes, each storage lane being equipped with racks and a stacker crane and / or shuttle for storage and retrieval operations, characterized in that, The control system includes: At least one single-sealed storage lane unit is provided to enable the corresponding storage lane to form a sealed space independent of the adjacent storage lane under controlled atmosphere conditions. The single-sealed storage lane unit includes an openable / closeable sealing structure disposed at the entrance and / or side wall of the single-sealed storage lane unit. An environmental monitoring unit is installed within the single sealed storage tunnel unit to collect environmental parameters including at least oxygen concentration, carbon dioxide concentration, ethylene concentration, temperature, and relative humidity. Each of the controlled atmosphere control actuators is connected to the single sealed storage tunnel unit through a sealed connection structure, so as to independently perform gas replacement, gas circulation, temperature regulation, and humidity regulation in the sealed space of the single sealed storage tunnel unit. The central control unit is communicatively connected to the openable / closeable sealing structure, the environmental monitoring unit, and the atmosphere control execution unit, respectively. It is used to control the opening and closing of the openable / closeable sealing structure, and independently control the operation of the atmosphere control execution unit of the corresponding storage tunnel according to the environmental parameters collected by the environmental monitoring unit, thereby triggering sealing and atmosphere control.

2. The single-storage-channel independent sealed atmosphere control system based on a dense storage system according to claim 1, characterized in that, The control system further includes an auxiliary support unit, which comprises: The power supply module provides a stable power supply to the control system; The safety protection module includes equipment fault alarms and an emergency stop button to ensure the safe and stable operation of the system. Communication module: used for data exchange between the central control unit and the openable / closeable sealing structure, environmental monitoring unit, and atmosphere control execution unit.

3. The single-storage-lane independent sealed atmosphere control system based on a dense storage system according to claim 2, characterized in that, The openable / closeable sealing structure includes: a high-speed rolling door, a sliding sealing door, or an inflatable sealing door, and the single opening or closing time of the openable / closeable sealing structure is no more than 5 seconds.

4. The single-storage-channel independent sealed atmosphere control system based on a dense storage system according to claim 3, characterized in that, The environmental monitoring unit includes multiple oxygen sensors, carbon dioxide sensors, ethylene sensors, and temperature and humidity sensors distributed along the length of the storage tunnel.

5. The single-storage-lane independent sealed atmosphere control system based on a dense storage system according to claim 4, characterized in that, The controlled atmosphere control unit includes: a gas replacement subsystem, a gas circulation system, and a temperature and humidity control system.

6. The single-storage-lane independent sealed atmosphere control system based on a dense storage system according to claim 5, characterized in that, The gas replacement subsystem includes: a vacuum pump, an inlet valve group, an exhaust valve group, and a gas mixing device. The inlet valve group includes nitrogen and / or carbon dioxide inlet ports and valves. The gas circulation system includes a circulating fan, a gas guide plate, and an air duct. The temperature and humidity control system includes a refrigeration unit, a heating device, a dehumidifier, a humidifier, an evaporator, and a condenser.

7. The single-storage-channel independent sealed atmosphere control system based on a dense storage system according to claim 6, characterized in that, The central control unit also includes a human-machine interface, a controller, a data storage unit, and a data analysis unit; the controller is a programmable logic controller or an industrial computer.

8. A method for independent sealed gas control of a single storage tunnel based on the control system of claim 7, characterized in that, The method includes the following steps: a) Initialization and target setting: Target controlled atmosphere parameters are set for each single sealed storage tunnel unit through the human-machine interface in the central control unit. The environmental parameters include oxygen concentration, carbon dioxide concentration, ethylene concentration, temperature and relative humidity. b) Storage tunnel unit sealing: When it is necessary to perform controlled atmosphere operation on the storage tunnel unit, the controller sends a signal command to close the openable / closeable sealing structure at its entrance and / or side wall position, forming an independent sealed space; c) Real-time monitoring of environmental parameters: Real-time environmental parameters in each single sealed storage tunnel unit are continuously collected through oxygen sensors, carbon dioxide sensors, ethylene sensors, and temperature and humidity sensors, and the data is transmitted to the central control unit; d) Data analysis and controlled atmosphere control execution: The controller compares and analyzes the received real-time environmental parameter information with the target controlled atmosphere parameter information through the data analysis unit to determine whether the real-time environmental parameter information and the target controlled atmosphere parameter information are the same. If they are different, compensation control is performed. e) Storage and retrieval operation coordination: When a storage and retrieval operation instruction is received from the stacker crane and / or shuttle, the controller coordinates the opening and closing of the openable / closeable sealing structure to ensure that the aisle is in a non-completely sealed state during the operation, and quickly restores the seal after the operation is completed and performs the environmental parameter compensation and adjustment in step d. f) Status monitoring and alarm: The safety protection module monitors the operating status of each device in real time. If a device malfunction occurs, it immediately issues an audible and visual alarm signal and records the fault information. g) Data recording and feedback: The system automatically records key operations, changes in environmental parameters, equipment operating status and other data to the data storage unit.

9. The method according to claim 8, characterized in that, The compensation and regulation described in step d are as follows: If the real-time oxygen concentration is lower than the target value, the gas replacement subsystem is activated to fill the single-seal storage tunnel unit with oxygen through the intake valve group until the oxygen concentration reaches the target value; if the real-time oxygen concentration is higher than the target value, the gas replacement subsystem is activated to discharge some of the air in the single-seal storage tunnel unit through the vacuum pump and exhaust valve group, and to fill the single-seal storage tunnel unit with nitrogen through the intake valve group until the oxygen concentration reaches the target value. If the real-time carbon dioxide concentration is lower than the target value, the gas replacement subsystem is activated, and carbon dioxide is introduced into the single-sealed storage tunnel unit through the air intake valve group until the carbon dioxide concentration reaches the target value; if the real-time carbon dioxide concentration is higher than the target value, the gas replacement subsystem is activated, and some of the air in the single-sealed storage tunnel unit is discharged through the vacuum pump and exhaust valve group, and nitrogen is introduced into the single-sealed storage tunnel unit through the air intake valve group until the carbon dioxide concentration reaches the target value. If the real-time ethylene concentration is higher than the target value, the gas replacement subsystem is activated to introduce nitrogen into the single-sealed storage tunnel unit through the inlet valve group, or to discharge part of the gas in the single-sealed storage tunnel unit through the vacuum pump and exhaust valve group until the ethylene concentration reaches the target value. If the real-time temperature is higher than the target value, the refrigeration unit and condenser in the temperature and humidity control system will be started until the temperature reaches the target value. If the real-time temperature is lower than the target value, the heating device in the temperature and humidity control system will be activated until the temperature reaches the target value. If the real-time relative humidity is higher than the target value, the dehumidifier and evaporator in the temperature and humidity control system will be activated until the relative humidity reaches the target value; if the real-time relative humidity is lower than the target value, the humidifier in the temperature and humidity control system will be activated until the relative humidity reaches the target value.

10. The method according to claim 9, characterized in that, Step d also includes: starting the gas circulation system, which can be started during or after the compensation and control process to ensure the uniformity of gas in the roadway unit.

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