Vacuum (or non-vacuum) ultralow temperature refrigeration house

By designing a large vacuum ultra-low temperature cold storage, using a 21-meter-long steel plate cylinder and liquid nitrogen container to simulate the low temperature and vacuum environment on the moon's surface, the problem of lack of such equipment in China has been solved and effective simulation of the lunar environment has been achieved.

CN119826431AInactive Publication Date: 2025-04-15刘大明
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Patent Information

Application Number
CN202411970411.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-04-15
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

At present, there is a lack of large vacuum ultra-low temperature cold storage in China, which cannot simulate the low temperature and vacuum environment on the moon's surface.

Method used

A large vacuum ultra-low temperature cold storage was designed, using a 21-meter-long 10-mm steel plate rolled cylinder, gables were welded at both ends and sealed chambers were installed, and liquid nitrogen containers and refrigeration fins were installed inside to simulate the low-temperature soil and environment on the surface of the moon, and lighting devices were set up on the upper part to simulate the sunlight on the moon.

Benefits of technology

The simulation of vacuum and ultra-low temperature environments has been achieved, filling the gap in the lack of such equipment in China, and providing necessary experimental conditions for scientific research and technological development.

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Abstract

The invention discloses a vacuum (or non-vacuum) ultralow-temperature cold storage. The invention belongs to the technical field of manufacturing of B23Q5 * industrial automatic control system devices. The technical problem to be solved is to manufacture ultralow-temperature, low-temperature and vacuum (non-vacuum) industrial equipment. The technical scheme for solving the problem is characterized in that a low-temperature-resistant steel plate is welded into a giant sealed container. And a low-temperature environment is generated through liquid nitrogen (or liquid helium and other refrigerants) refrigeration equipment. The container is vacuumized through the vacuumizing equipment, and the vacuum environment is simulated. Equipment, food or biological agents needing to be placed in the environment for experiments are placed in a vacuum (non-vacuum) ultralow-temperature refrigeration house, and the performance of the equipment, food or biological agents is tested for a certain time to adapt to various technical data. The device is mainly used for scientific experiments of industrial equipment needing to test various technical data of equipment performance in a low-temperature and vacuum (non-vacuum) environment or biological agents needing the low-temperature and vacuum (non-vacuum) environment and the like, frozen storage of food and the like.
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Description

Technical Field

[0001] The device belongs to the field of mechanical devices and transportation technology, heat treatment and equipment, refrigerants, refrigeration equipment or systems. Background Art

[0002] At present, there is no such large-scale vacuum ultra-low temperature cold storage in China, which fills the equipment gap. Summary of the invention

[0003] A main cylinder with a length of 21 meters (or other sizes) and a diameter of 8 meters (or other sizes) is rolled using 10 mm (or other sizes) steel plates. The gables are welded at both ends of the main cylinder, and then two sections of cylindrical sealed cabins with a length of 2 meters are welded to each of them, which are the same size as the main cylinder. The cabin welded gable is equipped with a sealed door. A vacuum exhaust unit is installed in the outermost cabin. The main cabin is evacuated through pipelines.

[0004] A steel bracket is welded or a PI material bracket is bonded to the outside of the entire cylinder, with a height of 5-10 mm (or other sizes), and a 5 mm thick (or other sizes) stainless steel plate is coated on the outside. The two ends are welded and sealed, and vacuum insulation is performed. Other insulation measures are taken on the outside.

[0005] Inside the main cabin, a 10 mm thick steel plate platform is welded 2 meters away from the top to isolate the cabin. A liquid nitrogen (or other refrigerant material) container is installed on it, and a switch valve is installed under the container. It is connected to the vacuum cabin below through a steel pipe. Pipes and refrigeration radiators are laid in the vacuum cabin below, and pipes and refrigeration radiators are laid at the bottom. Finally, the pipelines are gathered to the upper platform and a pressure valve is installed. When the pressure in the pipeline rises, the air can be released to reduce the pressure.

[0006] Lay 1-meter-thick hard soil at the bottom of the vacuum chamber and bury the refrigeration pipes and refrigeration heat sinks at the bottom to simulate the low-temperature soil and environment on the lunar surface.

[0007] A high-power iodine tungsten lamp (or other lighting and heating device) is installed on the upper part of the vacuum chamber to simulate the environment after the sun comes out on the moon.

Claims

1. Use 10 mm (or other size) steel plate to roll a main cylinder with a length of 21 meters (or other size) and a diameter of 8 meters (or other size). Weld gables at both ends of the main cylinder and set large sealed doors. Weld two sections of cylindrical sealed cabins with a length of 2 meters (or other size) at both ends of the main cylinder, which are the same size as the main cylinder. Set large sealed doors on the cabin welded gables. Set a vacuum exhaust unit in the outermost cabin. Evacuate the main cabin through pipelines.

2. Weld a steel bracket or bond a PI material bracket to the outside of the entire cylinder, with a height of 5-10 mm (or other sizes), cover it with a 5 mm thick (or other sizes) stainless steel plate, weld and seal at both ends, evacuate and insulate, and take other insulation measures on the outside.

3. Inside the main cabin, a 10 mm thick steel plate platform is welded 2 meters away from the top to isolate the cabin. A liquid nitrogen (or other refrigerant material) container is installed on it, and a switch valve is installed under the container. The vacuum cabin below is connected through a steel pipeline. Pipes and refrigeration radiators are laid in the vacuum cabin below, and pipes and refrigeration radiators are laid at the bottom. Finally, the pipelines are gathered to the upper platform and a pressure valve is installed. When the pressure in the pipeline rises, the air can be released to reduce the pressure.

4. Lay 1 meter thick hard soil at the bottom of the vacuum chamber and bury the refrigeration pipes and refrigeration heat sinks at the bottom to simulate the low temperature soil and environment on the lunar surface.

5. Install a high-power iodine tungsten lamp (or other lighting and heating device) on the top of the vacuum chamber to simulate the environment on the moon after the sun comes out.