Cultural relic freezing insect killing device

Abstract

The invention discloses a cultural relic freezing insect killing device, and relates to the field of cultural relic insect pest control, and the device comprises a refrigeration system, an air circulation system connected to the tail end of the refrigeration system, and a heat preservation system installed at an air outlet of the air circulation system. The refrigeration system is used for providing cold energy for the freezing insect killing device, an air inlet of the air circulation system is connected to the tail end of the refrigeration system and used for conveying the cold energy generated by the refrigeration system to a target cultural relic to be processed in a cold air mode, and the heat preservation system is installed at an air outlet of the air circulation system and used for maintaining the environment temperature of the cultural relic. Therefore, cultural relics can be frozen to kill insects. The method is wide in cultural relic application range, and has the effects of thoroughly killing pests, shortening the pest killing treatment time and reducing the treatment energy consumption.

Description

Technical Field

[0001] This invention relates to the field of pest control for cultural relics, and particularly to a freezing and insecticidal device for cultural relics. Background Technology

[0002] Low-temperature pest control is currently a relatively ideal method for controlling pests on cultural relics. Although it has great potential in eliminating hidden, pesticide-resistant pests, suitable technologies and equipment are still lacking. Existing cryogenic pest control equipment mainly consists of small cold storage facilities, primarily used for small, easily movable cultural relics such as archives, books, and specimens, with a treatment cycle typically lasting several days.

[0003] Therefore, the existing technologies mentioned above still have significant limitations in their application to cultural relics, as well as technical problems such as long processing cycles and low efficiency. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to design a cryogenic insecticidal device for cultural relics, which overcomes the limitations of existing technologies in terms of time and efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a device for freezing and sterilizing cultural relics, the device comprising: Refrigeration system; An air circulation system connected to the end of a refrigeration system; An insulation system is installed at the air outlet of the air circulation system; the refrigeration system provides cooling capacity for the freezing and insecticidal device; the air inlet of the air circulation system is connected to the end of the refrigeration system to deliver the cooling capacity produced by the refrigeration system to the target cultural relic to be treated in the form of cold air; the insulation system is installed at the air outlet of the air circulation system to maintain the ambient temperature of the cultural relic in order to achieve the goal of freezing and insecticidal treatment of the cultural relic.

[0006] Specifically, the refrigeration system is a distillation-type cascade refrigeration system, including a compressor, a condenser, a distillation column, a high-temperature regenerator, a low-temperature regenerator, an evaporator, a main throttling valve, and a secondary throttling valve. The compressor exhaust port is connected to one end of the condenser, and the compressor suction port is connected to the high-temperature regenerator through the top of the distillation column. The distillation column also includes a top heat exchanger and a liquid storage tank. The top heat exchanger is installed at the top of the distillation column, and the liquid storage tank is installed at the bottom of the distillation column. The other end of the condenser is connected to the distillation column. The top of the distillation column is connected to the high-temperature regenerator through two paths, and the bottom of the distillation column is connected to a secondary throttling valve. The other end of the high-temperature regenerator is connected to the low-temperature regenerator through two paths, and the other end of the low-temperature regenerator is connected to the evaporator through two paths. A main throttling valve is also installed between the low-temperature regenerator and the evaporator. The other end of the secondary throttling valve is connected to a path between the high-temperature regenerator and the low-temperature regenerator that is different from the main throttling valve. Specifically, the air inlet of the air circulation system is connected to the end of the refrigeration system, and its air outlet is connected to the insulation system. The air circulation system delivers the cooling capacity produced by the refrigeration system to the insulation system in the form of cold air.

[0007] Furthermore, the cooling capacity output from the terminal of the refrigeration system can be manually adjusted or automatically adjusted by the control system.

[0008] Furthermore, the air speed and flow rate of the air circulation system can be manually adjusted or automatically adjusted by the control system.

[0009] Specifically, the insulation system includes an insulation cabinet or an airflow jacket; the two can be replaced according to the size and type of the cultural relic. For small, movable cultural relics, the insulation cabinet is selected; for large, immovable cultural relics, the airflow jacket is selected.

[0010] Specifically, the air circulation system includes a first fan unit, a second fan unit, and a heater; the first fan unit is arranged on the air path from the refrigeration system to the insulation system, and the second fan unit contains a heater and is arranged on the air path from the insulation system back to the refrigeration system.

[0011] Furthermore, it also includes a programmable controller, specifically including an input terminal that has a built-in preset cooling and reheating curve program, collects the temperature of the artifact itself, the compressor temperature, the suction and exhaust pressure, and the temperature and pressure of the insulation system, and an output terminal that controls the compressor, main throttling, auxiliary throttling, fan, and heater. With the preset cooling and reheating curve inside the object being processed as the target, the output terminal is controlled by the variables of the input terminal to regulate the temperature of the cold air, so that the processor can realize the above-mentioned adjustment method.

[0012] Preferably, the programmable controller is a PLC, and the control method is PID automatic control.

[0013] The present invention also discloses a computer-readable storage medium storing computer instructions thereon, which, when executed by a processor, implement the adjustment mode of the aforementioned artifact freezing and insecticidal device.

[0014] The beneficial effects of this invention are as follows: This invention provides a device for freezing and killing insects on cultural relics. A refrigeration system provides cooling to the cultural relics, and an air circulation system delivers the cooling output as cold air to the target cultural relics. An insulation system maintains the ambient temperature of the cultural relics, thereby achieving the goal of freezing and killing insects. This invention is applicable to a wide range of cultural relics and has the effects of thorough pest control, reduced treatment time, and lower energy consumption. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main components of the artifact freezing and insecticidal device described in this invention; Figure 2 This is a schematic diagram of the main components of the programmable controller described in this invention.

[0016] Figure label: 1-Refrigeration system, 2-Air circulation system, 3-Insulation system, 11-Compressor, 12-Condenser, 13-Distillation column, 131-Heat exchanger at the top of the vessel, 132-Liquid storage tank, 14-High-temperature regenerator, 15-Low-temperature regenerator, 16-Evaporator, 17-Secondary throttling, 18-Main throttling, 21-First fan unit, 22-Second fan unit. Detailed Implementation

[0017] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0018] like Figure 1 As shown, a device for freezing and killing insects in cultural relics includes a refrigeration system 1. 2. Air circulation system connected to the end of the refrigeration system The insulation system 3 is installed at the air outlet of the air circulation system; the refrigeration system 1 provides cooling capacity for the freezing and insecticidal device; the air inlet of the air circulation system 2 is connected to the end of the refrigeration system to deliver the cooling capacity produced by the refrigeration system 1 to the target cultural relic to be treated in the form of cold air; the insulation system 3 is installed at the air outlet of the air circulation system to maintain the ambient temperature of the cultural relic in order to achieve the goal of freezing and insecticidal treatment of the cultural relic.

[0019] The refrigeration system 1 is a distillation-type cascade refrigeration system, including a compressor 11, a condenser 12, a distillation column 13, a high-temperature regenerator 14, a low-temperature regenerator 15, an evaporator 16, a main throttling valve 17, and a secondary throttling valve 18. The exhaust port of the compressor 11 is connected to one end of the condenser 12, and its suction port is connected to the high-temperature regenerator 14 through the top of the distillation column 13. The other end of the condenser 12 is connected to the distillation column 13. The top of the distillation column 13 is connected to the high-temperature regenerator 14 through two paths, and the bottom is connected to the secondary throttling valve 18. The other end of the high-temperature regenerator 14 is connected to the low-temperature regenerator 15 through two paths, and the other end of the low-temperature regenerator 15 is connected to the evaporator 16 through two paths. The main throttling valve 17 is also installed between the low-temperature regenerator 15 and the evaporator 16. The other end of the secondary throttling valve 18 is connected to a path between the high-temperature regenerator 14 and the low-temperature regenerator 15 that is different from the main throttling valve 17. The distillation column 13 also includes a top heat exchanger 131 and a liquid storage tank 132. The top heat exchanger 131 is installed at the top of the distillation column 13, and the liquid storage tank is installed at the bottom of the distillation column 13.

[0020] In this embodiment, the refrigeration system operates as follows: the mixed refrigerant first enters the compressor 11, is compressed to a high-temperature, high-pressure state, and then enters the condenser 12. In the condenser 13, most of the high-boiling-point components are condensed into liquid, while most of the low-boiling-point components in the refrigerant remain as vapor. The condensed gas-liquid two-phase mixture enters the distillation column 13. After separation, the liquid mixture of most of the high-boiling-point components and lubricating oil descends to the bottom of the distillation column 13, is drawn out, and then undergoes pressure reduction and throttling through the secondary throttling device 18. The resulting low-temperature, low-pressure fluid from the low-temperature regenerator 15 is then collected and enters the low-pressure side of the high-temperature regenerator 14 connected to the top outlet of the distillation column to cool the vapor drawn from the top of the vapor-liquid separator. A portion of the cooled vapor that has been condensed into liquid is returned to the vapor-liquid separator to enhance its separation effect. The gaseous working fluid rich in low-boiling-point components drawn from the high-pressure side of the high-temperature regenerator 14 is further cooled into a liquid mixture by the low-temperature regenerator 15. It then flows through the low-temperature main throttling valve 17 for pressure reduction and throttling, and finally enters the evaporator 16 for evaporation and refrigeration. The low-temperature vapor exiting the evaporator passes sequentially through the low-temperature regenerator 15, the high-temperature regenerator 14, and the top heat exchanger 131 at the top of the distillation column 13 before returning to the compressor 11, completing one refrigeration cycle.

[0021] The air inlet of the air circulation system 2 is connected to the terminal evaporator 16 of the refrigeration system 1, and the air outlet is connected to the insulation system 3. The air circulation system 2 delivers the cooling capacity produced by the refrigeration system 1 to the insulation system 3 in the form of cold air.

[0022] The insulation system 3 should be changed according to the size and type of the cultural relic, including a heat preservation cabinet or an airflow jacket. In this embodiment, for small movable cultural relics such as books and paper documents in scenario A, the type of insulation system 3 selected is a heat preservation cabinet; for large immovable cultural relics such as wooden building columns in scenario B, the type of insulation system 3 selected is an airflow jacket.

[0023] The cooling capacity output of the refrigeration system 1 can be adjusted manually or automatically.

[0024] The air speed and flow rate of the air circulation system 2 can be adjusted manually or automatically.

[0025] The air circulation system 2 includes a first fan unit 21, a second fan unit 22, and a heater 23. The first fan unit 21 is arranged in the air path from the refrigeration system 1 to the insulation system 3, and the second fan unit 22, which contains the heater 23, is arranged in the air path from the insulation system 3 back to the refrigeration system 1.

[0026] like Figure 2As shown, a programmable controller includes an input terminal for collecting the temperature and pressure of the circulating air in the air circulation system 2 and the temperature of the artifact in the insulation system 3, and an output terminal for controlling the cooling capacity, air circulation speed, and flow rate of the refrigeration system, so that the processor can implement the cooling capacity or air volume adjustment scheme.

[0027] In this embodiment, the programmable controller is a PLC. By programming the PLC to precisely control the air volume and cooling capacity, the purpose of efficient insect killing can be achieved, while also producing energy-saving effects.

[0028] like Figure 2 As shown, after retrieving the pest control curve for the cultural relic, this system can collect data on the temperature of the insulation system, the temperature of the cultural relic itself, the compressor temperature, the suction and exhaust pressures, and the insulation system pressure. It then controls the compressor 11, main throttling unit 17, secondary throttling unit 18, fan 21, fan 22, and heater 23 to ensure the cultural relic temperature precisely follows the predetermined cooling curve, thereby achieving efficient pest control. This refrigeration system can output cold air as low as -50℃ with a cooling capacity of 500W, and also provide high-temperature air up to 40℃, ensuring the pest control function is achieved.

[0029] In summary, the artifact freezing and insecticidal device of the present invention achieves the effects of expanding the applicable range of artifacts, improving processing efficiency, shortening processing time and saving energy, and solves the problems of the limited applicability of previous freezing and insecticidal devices, long processing cycles and low efficiency.

[0030] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein.

[0031] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope.

Claims

1. A device for freezing and killing insects in cultural relics, characterized in that, The device includes: Refrigeration system (1); An air circulation system connected to the end of the refrigeration system (2); The insulation system (3) is installed at the air outlet of the air circulation system; the refrigeration system (1) provides cooling capacity for the freezing and insecticidal device; the air inlet of the air circulation system (2) is connected to the end of the refrigeration system to deliver the cooling capacity produced by the refrigeration system (1) to the target cultural relic to be treated in the form of cold air; the insulation system (3) is installed at the air outlet of the air circulation system to maintain the ambient temperature of the cultural relic so as to achieve the goal of freezing and insecticidal treatment of the cultural relic.

2. The artifact freezing and insecticidal device according to claim 1, characterized in that, The refrigeration system (1) is a distillation-type self-cascade refrigeration system, including a compressor (11), a condenser (12), a distillation column (13), a high-temperature regenerator (14), a low-temperature regenerator (15), an evaporator (16), a main throttling valve (17), and a secondary throttling valve (18). The exhaust port of the compressor (11) is connected to one end of the condenser (12), and the suction port of the compressor (11) is connected to the high-temperature regenerator (14) through the top of the distillation column (13). The distillation column (13) also includes a top heat exchanger (131) and a liquid storage tank (132). The top heat exchanger (131) is installed at the top of the distillation column (13), and the liquid storage tank (132) is installed at the top of the distillation column (13). The bottom of the distillation column (13); the other end of the condenser (12) is connected to the distillation column (13), the top of the distillation column (13) is connected to the high-temperature regenerator (14) through two paths, the bottom of the distillation column (13) is connected to the secondary throttling flow (18), the other end of the high-temperature regenerator (14) is connected to the low-temperature regenerator (15) through two paths, the other end of the low-temperature regenerator (15) is connected to the evaporator (16) through two paths, a main throttling flow (17) is also installed between the low-temperature regenerator (15) and the evaporator (16), and the other end of the secondary throttling flow (18) is connected to a path between the high-temperature regenerator (14) and the low-temperature regenerator (15) that is different from the main throttling flow (17).

3. The artifact freezing and insecticidal device according to claim 1, characterized in that, The air inlet of the air circulation system (2) is connected to the end of the refrigeration system (1), and its outlet is connected to the insulation system (3). The air circulation system (2) delivers the cold energy produced by the refrigeration system (1) to the insulation system (3) in the form of cold air.

4. The artifact freezing and insecticidal device according to claim 1, characterized in that, The cooling capacity output from the terminal of the refrigeration system (1) can be manually adjusted or automatically adjusted by the control system.

5. The artifact freezing and insecticidal device according to claim 1, characterized in that, The air circulation system (2) can be manually adjusted for wind speed and flow rate, or automatically adjusted by the control system.

6. The artifact freezing and insecticidal device according to claim 1, characterized in that, The insulation system (3) includes an insulation cabinet or an airflow jacket; the two can be replaced according to the size and type of the cultural relic. For small movable cultural relics, the insulation cabinet is selected; for large immovable cultural relics, the airflow jacket is selected.

7. The artifact freezing and insecticidal device according to claim 1, characterized in that, The air circulation system (2) includes a first fan unit (21), a second fan unit (22) and a heater (23); the first fan unit (21) is arranged on the air path from the refrigeration system (1) to the insulation system (3), and the second fan unit (22) contains a heater (23) and is arranged on the air path from the insulation system (3) back to the refrigeration system (1).

8. The artifact freezing and insecticidal device according to claim 1, characterized in that, It also includes a programmable controller, specifically including an input terminal for a built-in cooling and reheating preset curve program, a temperature of the artifact itself, the temperature of the compressor (11), the suction and exhaust pressure and the temperature and pressure of the insulation system (3), and an output terminal for controlling the compressor (11), the main throttling (17), the secondary throttling (18), the fan (21), the fan (22) and the heater (23), with the preset cooling and reheating curve inside the object being processed as the target, and controlling the output terminal through the input terminal variables, thereby regulating the temperature of the cold air, so that the processor can achieve the adjustment method as described in any one of claims 5 or 6.

9. A device for freezing and killing insects in cultural relics according to claim 8, characterized in that, The programmable controller is a PLC, and the control method is PID automatic control.

10. A computer-readable storage medium storing computer instructions thereon, characterized in that, When executed by the processor, this instruction implements the adjustment method as described in any one of claims 5 or 6.

Images