A composite gas regulation method for preventing mildew and insect damage of ancient books

Abstract

This invention relates to the field of cultural relic preservation technology and provides a composite gas control method for preventing mold and insect infestation in ancient books. The method includes: deploying a sensor array within the storage space to collect environmental parameters in real time and transmitting them to a central intelligent control terminal; classifying the ancient books into three protection levels based on the collected environmental parameters, combined with the books' rarity, paper material, and damage condition, and presetting composite gas concentration thresholds; using a chemical-free composite gas system of nitrogen, carbon dioxide, and inert antibacterial gas, proportioned according to the protection level, and delivering it to the storage space; executing dynamic control logic based on the real-time collected environmental parameters, and switching to a low-energy maintenance mode after the environmental parameters return to a safe range; providing localized gas replenishment to the enclosed space through micro-gas channels and setting up a personnel safety interlock mechanism; and recording data in real time and generating ancient book protection archives. This invention achieves chemical-free, non-destructive, and highly efficient synergistic mold and insect prevention, significantly reducing operating energy consumption.

Description

Technical Field

[0001] This invention belongs to the field of cultural relic protection technology, and in particular relates to a composite gas control method for preventing mold and insect infestation in ancient books. Background Technology

[0002] Ancient books, primarily printed on plant fiber paper, are highly susceptible to damage from harmful organisms such as mold, booklice, silverfish, and archivists during long-term storage. This damage can lead to mold growth, fiber damage from insects, and ink loss, severely compromising the integrity and lifespan of the books. Current conventional techniques for preventing insects and mold in ancient books mainly fall into two categories: chemical protection and physical environmental control.

[0003] A common approach in existing technologies is the traditional nitrogen-based low-oxygen storage method. This method involves filling the storage space with nitrogen to reduce the oxygen concentration, thereby inhibiting the survival and reproduction of mold and pests in a low-oxygen environment. Specifically, this method uses a single gas (nitrogen) control method to reduce the oxygen concentration in the storage space to a certain fixed threshold and then maintain it at a constant level to achieve the purpose of preventing insects and mold.

[0004] However, the aforementioned traditional nitrogen-based low-oxygen storage method has the following technical problems in practical applications: the method only adjusts the oxygen concentration, which is insufficient to inhibit mold spores and cannot achieve synergistic and efficient protection against mold and insects; the high-power nitrogen filling throughout the process results in extremely high energy consumption and high operating costs; the gas concentration control method is crude and cannot be dynamically adjusted according to the actual changes in the microenvironment of ancient book storage; in addition, the method does not set differentiated protection strategies for ancient books of different rarity levels, resulting in resource waste and insufficient protection precision. Summary of the Invention

[0005] The purpose of this invention is to provide a composite gas control method for preventing mold and insect infestation in ancient books, aiming to solve the problems existing in the background technology.

[0006] This invention is implemented as follows: a composite gas control method for preventing mold and insect infestation in ancient books, comprising the following steps: An integrated sensor array is deployed in spaces such as ancient book storage warehouses, mobile shelving units, and special case sleeves to collect environmental parameters in real time, including oxygen concentration, carbon dioxide concentration, ambient temperature and humidity, concentration of volatile gases from mold metabolism, and vibration signals from pest activity. All parameters are transmitted in real time to a central intelligent control terminal to complete data analysis and risk assessment.

[0007] The central intelligent control terminal classifies ancient books into three protection levels based on their rarity, paper material, and damage condition, and presets corresponding composite gas concentration thresholds: Level 1: Ordinary ancient books: oxygen concentration 18%-21%, carbon dioxide concentration 2%-3%; Level 2: Rare ancient books: oxygen concentration 12%-15%, carbon dioxide concentration 3%-4%; Level 3: Special collection rare ancient books: oxygen concentration 8%-10%, carbon dioxide concentration 4%-5%. At the same time, preset thresholds for mold and pest risks are set, and if the thresholds are exceeded, an enhanced control mode is immediately activated.

[0008] A drug-free composite gas system consisting of nitrogen, carbon dioxide, and trace amounts of inert antibacterial gas is used, with the proportions adjusted according to different protection levels. Nitrogen accounts for 90%-97%, carbon dioxide for 2%-5%, and trace amounts of inert antibacterial gas for 0.1%-1%. The composite gas is precisely delivered to the ancient book storage space through a micro-airflow conveying device, avoiding uneven concentration caused by gas turbulence.

[0009] The central intelligent control terminal executes dynamic control logic based on real-time monitoring data: when the concentration of mold metabolic gas exceeds the standard, it automatically increases the carbon dioxide ratio to enhance the antibacterial and anti-mold effect; when the vibration signal of pest activity is detected, it quickly reduces the oxygen concentration to the pest suffocation threshold to achieve physical killing; when the ambient temperature and humidity are too high, it links and controls the gas ratio and dehumidification module to inhibit the germination of mold spores; when the environmental parameters return to a safe range, it automatically switches to a low-energy maintenance mode to keep the gas concentration stable.

[0010] For enclosed small spaces such as the inside of mobile shelving units and sleeves, local gas replenishment is achieved through micro-air circuits to achieve comprehensive protection; at the same time, a personnel safety interlock mechanism is set up. When an instruction for personnel to enter the warehouse is detected, gas regulation is immediately stopped, the ventilation module is activated, and the warehouse is restored to normal pressure air to avoid the risk of personnel hypoxia.

[0011] Real-time recording of complex gas concentration, environmental parameters, and control logs generates ancient book protection archives, enabling full-process traceability and queryability.

[0012] The present invention provides a composite gas control method for preventing mold and insect infestation in ancient books, which has the following beneficial effects: This invention employs a purely physical, pesticide-free composite gas protection system, containing no chemical fumigation components. It is completely undamaged, leaving no residue or secondary damage to the paper, ink, and binding materials of ancient books. By constructing a synergistic system of nitrogen, carbon dioxide, and trace amounts of inert antibacterial gas, it achieves the dual effects of low-oxygen insecticidal action and carbon dioxide antibacterial and antifungal properties. The protection efficiency is far higher than that of single-gas regulation, achieving a mold spore germination inhibition rate of ≥95% and a kill rate of ≥98% against common ancient book pests such as booklice, silverfish, and archive thieves. Simultaneously, this invention achieves multi-parameter linkage and graded differentiated regulation, dynamically adjusting the gas ratio according to the grade of the ancient book and environmental risk, resulting in more precise protection and lower energy consumption. Compared to traditional full-warehouse nitrogen-filled low-oxygen technology, energy consumption is reduced by more than 45%. Furthermore, the dual regulation of the overall warehouse and local microenvironment solves the protection blind spots of traditional technologies. Equipped with safety interlocks and full-process data traceability functions, it balances protection effectiveness and operational safety, enabling 24-hour uninterrupted adaptive regulation to continuously and stably ensure the ancient book storage environment and extend the preservation life of ancient books. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0014] A composite gas control method for preventing mold and insect infestation in ancient books is applicable to public libraries, university libraries, museums, archives and other institutions at all levels. It is suitable for the long-term storage and protection of ancient books, rare books, precious paper documents and historical archives, and is especially suitable for professional and non-destructive protection of ancient books that are prone to mold, insect infestation and fragile damage.

[0015] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0016] Example 1: This embodiment uses a special collection of ancient books in a library as an example to implement a composite gas control method for preventing mold and insect infestation of ancient books.

[0017] Step 1: Deploy an integrated sensor array for oxygen, carbon dioxide, temperature and humidity, mold, and pests in the library's rare book and special collection stacks and mobile shelving units. Collect oxygen concentration, carbon dioxide concentration, ambient temperature and humidity, concentration of volatile gases from mold metabolism, and vibration signals of pest activity in real time. Set the sensor sampling interval to 5 minutes and transmit all parameters to the central intelligent control terminal in real time to complete data analysis and risk assessment.

[0018] Step 2: The central intelligent control terminal classifies the collection of ordinary thread-bound ancient books, rare ancient books, and unique ancient books into three protection levels—Level 1, Level 2, and Level 3—based on the rarity, paper material, and damage condition of the ancient books, and presets corresponding composite gas concentration thresholds: Level 1 ordinary ancient books correspond to an oxygen concentration of 18%-21% and a carbon dioxide concentration of 2%-3%; Level 2 rare ancient books correspond to an oxygen concentration of 12%-15% and a carbon dioxide concentration of 3%-4%; and Level 3 unique ancient books correspond to an oxygen concentration of 8%-10% and a carbon dioxide concentration of 4%-5%. Simultaneously, preset thresholds for mold and pest risks are also set. The real-time collected environmental parameters are compared with the composite gas concentration thresholds. When mold metabolic gases exceed the standard in the area of ​​Level 2 rare ancient books, it is determined that the threshold has been exceeded, and an enhanced control mode is immediately activated.

[0019] Step 3: Using a drug-free composite gas system of nitrogen, carbon dioxide, and inert antibacterial gas, activate the composite gas generation module and mix the gases according to the three-level protection level: nitrogen 90%-97%, carbon dioxide 2%-5%, and inert antibacterial gas 0.1%-1%. The composite gas is precisely delivered to the ancient book storage space via a micro-airflow conveying device to avoid uneven concentration caused by gas turbulence.

[0020] Step 4: The central intelligent control terminal executes dynamic control logic based on real-time collected environmental parameters: when the concentration of mold metabolic gases exceeds the standard, it automatically increases the carbon dioxide ratio to enhance the antibacterial and anti-mold effect; when it detects vibration signals of pest activity, it quickly reduces the oxygen concentration to the pest suffocation threshold to achieve physical killing; when the ambient temperature and humidity are too high, it coordinates the adjustment of the gas ratio and dehumidification module to inhibit the germination of mold spores. When the environmental parameters return to a safe range, it automatically switches to a low-energy maintenance mode to keep the composite gas concentration stable.

[0021] Step 5: For enclosed small spaces such as the inside of mobile shelving units and their sleeves, local gas replenishment is achieved through micro-air circuits to achieve comprehensive protection. Simultaneously, a personnel safety interlock mechanism is implemented. When an entry command for personnel is detected, gas control is immediately stopped, the fresh air exchange module is activated, and the air in the warehouse is restored to normal atmospheric pressure. Personnel are allowed to enter only after the oxygen concentration has returned to normal atmospheric pressure, thus avoiding the risk of oxygen deficiency.

[0022] Step 6: The system automatically stores daily control data, records compound gas concentration, environmental parameters, and control logs in real time, and generates weekly reports on the protection of ancient books, achieving full traceability and queryability, which is convenient for managers to view and trace.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A composite gas control method for preventing mold and insect infestation in ancient books, characterized in that, The composite gas control method for preventing mold and insect infestation in ancient books includes: Step 1: Collect environmental parameters in real time inside the storage space, including oxygen concentration, carbon dioxide concentration, ambient temperature and humidity, concentration of volatile gases from mold metabolism, and vibration signals of pest activity, and transmit these environmental parameters to the central intelligent control terminal in real time. Step 2: Based on the collected environmental parameters, and considering the rarity, paper material, and damage condition of the ancient books, classify them into three protection levels and preset corresponding composite gas concentration thresholds. Compare the environmental parameters with the composite gas concentration thresholds; if they exceed the thresholds, activate the enhanced control mode. Step 3: Use a drug-free composite gas system of nitrogen, carbon dioxide, and inert antibacterial gas, mix it according to the three-level protection level, and transport the composite gas to the storage space. Step 4: Execute dynamic control logic based on real-time collected environmental parameters, and automatically switch to low-energy maintenance mode when the environmental parameters return to the preset safe range; Step 5: Replenish the enclosed space with gas through a micro gas circuit, and set up a personnel safety interlock mechanism at the same time; Step 6: Record the concentration of the composite gas, environmental parameters, and control logs in real time to generate ancient book protection archives.

2. The composite gas control method for preventing mold and insect infestation in ancient books according to claim 1, characterized in that, The three-level protection level is specifically as follows: Level 1 ordinary ancient books correspond to an oxygen concentration of 18%-21% and a carbon dioxide concentration of 2%-3%; Second-level rare ancient books correspond to an oxygen concentration of 12%-15% and a carbon dioxide concentration of 3%-4%; The corresponding oxygen concentration for a Level III special collection of rare ancient books is 8%-10% and the carbon dioxide concentration is 4%-5%.

3. The composite gas control method for preventing mold and insect infestation in ancient books according to claim 1, characterized in that, In the drug-free composite gas system, nitrogen accounts for 90%-97%, carbon dioxide accounts for 2%-5%, and inert antibacterial gas accounts for 0.1%-1%.

4. The composite gas control method for preventing mold and insect infestation in ancient books according to claim 1, characterized in that, The dynamic control logic described in step 4 includes: automatically increasing the carbon dioxide ratio when the concentration of mold metabolic gas exceeds the standard; rapidly reducing the oxygen concentration to the pest suffocation threshold when the vibration signal of pest activity is detected; and linking the gas ratio and dehumidification module when the ambient temperature and humidity are too high.

5. The composite gas control method for preventing mold and insect infestation in ancient books according to claim 1, characterized in that, The low-energy maintenance mode is as follows: Once the environmental parameters return to a safe range, maintain a stable concentration of the composite gas.

6. The composite gas control method for preventing mold and insect infestation in ancient books according to claim 1, characterized in that, The personnel safety interlocking mechanism mentioned in step 5 is specifically as follows: When a command to allow personnel to enter the warehouse is detected, gas regulation is immediately stopped, the ventilation module is activated, and the warehouse is restored to normal atmospheric pressure.