A vacuum experimental environment simulation device

Abstract

The present invention relates to a vacuum experimental environment simulation device. A vacuum chamber with an upward opening is provided in the middle of the base. The bottom of the vacuum chamber is externally connected through a gas switching valve. A pressure sensor is arranged in the gas vacuum chamber. The upper cover is hermetically and coaxially sleeved on the vacuum chamber. A guide column coaxially connected to the vacuum chamber is penetrated through the upper cover. A sealing cover is connected to the upper end surface of the upper cover to cover and install the guide column. A camera is arranged on the lower end surface of the guide column. Two or more superposed groups of aluminum sheets are evenly arranged on the outer periphery of the vacuum chamber around the center of the base. The upper end surface of the superposed group of aluminum sheets abuts against the lower end surface of the upper cover. A heating plate is arranged on the outer periphery of the superposed group of aluminum sheets. The heating plate, the gas switching valve, the pressure sensor, and the camera are all connected to a control console. It has a simple structure, is stable, reliable, safe, and low-cost in use.

Description

Technical Field

[0001] The present invention relates to a simulation device, specifically a simulation device for a vacuum experimental environment. Background Art

[0002] With the rapid development of new materials and instrumentation, people need to conduct a large number of experiments to master the variation laws of instrumentation and various properties of materials in a vacuum environment. After the traditional vacuum environment is pumped, most of its vacuum holding devices adopt a hydraulic system, which has a large potential hazard of hydraulic leakage, and the pressure holding performance and safety cannot be effectively guaranteed. Summary of the Invention

[0003] The present invention provides a simulation device for a vacuum experimental environment with a simple structure, stable, reliable, safe and low-cost use.

[0004] The technical solution adopted by the present invention is: a simulation device for a vacuum experimental environment, characterized in that it includes a console, a base, an upper cover, guide columns, a sealing cover, a gas reversing valve, a heating plate, and an aluminum sheet stack. An upwardly open vacuum chamber is provided in the middle of the base, the bottom of the vacuum chamber is externally connected through the gas reversing valve, a pressure sensor is arranged in the gas vacuum chamber, the upper cover is hermetically and slidably sleeved on the vacuum chamber, a guide column coaxially communicating with the vacuum chamber is inserted through the upper cover, the sealing cover is connected to the upper end face of the upper cover to cover the guide column, and a camera is arranged on the lower end face of the guide column; two or more aluminum sheet stacks are evenly arranged on the outer periphery of the vacuum chamber around the center of the base, the upper end face of the aluminum sheet stack abuts against the lower end face of the upper cover, a heating plate is arranged on the outer periphery of the aluminum sheet stack, and the heating plate, the gas reversing valve, the pressure sensor, and the camera are all connected to the console.

[0005] Further, it further includes a water tank, a hydraulic pump, a water body reversing valve, and a guiding cylinder body. The guiding cylinder body is arranged between the heating plate and the aluminum sheet stack, a cooling water channel is arranged in the guiding cylinder body, and the cooling water channel is externally connected to the water tank through the water body reversing valve and the hydraulic pump in sequence.

[0006] Further, the guiding cylinder body is divided into an upper cylinder body and a lower cylinder body. The upper cylinder body is connected to the lower end of the upper cover, the lower cylinder body is connected to the base, the upper cylinder body is coaxially sleeved in the lower cylinder body, and the cooling water channel is arranged in the lower cylinder body.

[0007] Further, the aluminum sheet stack is composed of multiple aluminum sheets stacked in sequence.

[0008] Further, a sealing ring is arranged between the sleeved walls of the upper cover and the vacuum chamber.

[0009] Further, a dust-proof ring is arranged at the sleeve interface of the upper cover and the vacuum chamber, and the dust-proof ring is externally pressed by a pressing plate.

[0010] Further, the gas reversing valve is externally connected to an air processor and then connected to the atmosphere.

[0011] The present invention transforms ordinary hydraulic pressure holding into lifting achieved by the thermal expansion of an aluminum sheet stack group. It has a compact structure, simple and safe operation, can save costs, and ensure stable, reliable and safe use. It can be widely used to study the variation laws of instruments and meters and various properties of materials in a vacuum environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic structural diagram of the present invention.

[0013] In the figure: 1. Sealing cover; 2. Guide post; 3. Upper cover; 4. Aluminum sheet stack group; 5. Upper cylinder body; 6. Cooling water channel; 7. Lower cylinder body; 8. Heating plate; 9. Base; 10. Water body reversing valve; 11. Hydraulic pump; 12. Water tank; 13. Pressing plate; 14. Dust-proof ring; 15. Sealing ring; 16. Camera; 17. Vacuum chamber; 18. Gas reversing valve; 19. Air processor; 20. Pressure sensor; 21. Console. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] The following is further described with reference to the accompanying drawings.

[0015] Figure 1 As shown: A vacuum experiment environment simulation device, in the middle of the base 9, there is a vacuum chamber 17 with an upward opening. The bottom of the vacuum chamber is externally connected in sequence through a gas reversing valve 18 and an air processor 19. A pressure sensor 20 is arranged in the gas vacuum chamber 17. The upper cover 3 is hermetically and slidably sleeved on the vacuum chamber. A sealing ring 15 is arranged between the sleeved wall of the upper cover and the vacuum chamber. A dust-proof ring 14 pressed by a pressing plate 13 is arranged at the sleeve interface of the upper cover and the vacuum chamber. A guide post 2 coaxially communicated with the vacuum chamber is penetrated through the upper cover. The sealing cover 1 is connected to the upper end face of the upper cover to cover the guide post. A camera 16 is arranged on the lower end face of the guide post; On the base 9, more than two aluminum sheet stack groups 4 are evenly arranged around the outer periphery of the central vacuum chamber. The aluminum sheet stack group is composed of multiple aluminum sheets stacked in sequence. The upper end face of the aluminum sheet stack group abuts against the lower end face of the upper cover. Heating plates are arranged on the outer periphery of the aluminum sheet stack group by the upper and lower cylinder bodies 5 and 7. The upper cylinder body is connected to the lower end of the upper cover, and the lower cylinder body is connected to the base. The upper cylinder body is coaxially sleeved in the lower cylinder body. A cooling water channel 6 is arranged in the lower cylinder body. The cooling water channel is externally connected to a water tank 12 through a water body reversing valve 10 and a hydraulic pump 11 in sequence; The heating plate, gas reversing valve, pressure sensor, camera, and water body reversing valve are all connected to the console 21.

[0016] During use, the gas reversing valve is reversed so that the air processed by the air processor in the vacuum chamber is interconnected, and the upper cover presses downward to exhaust the gas in the inner cavity. Open the sealing cover, take out the guide post, put the required experimental materials into the vacuum chamber, after putting on the upper cover, cover the sealing cover, and reverse the gas reversing valve to make the inner cavity in a sealed state. The base and the upper cover are sealed by a sealing ring, and the dust-proof ring is tightly pressed by the dust-proof ring and the pressing plate above.

[0017] At the beginning of the experiment, the heating plate works, and the stacked aluminum sheets expand due to heat, slowly pushing up the upper cover. At this point, a vacuum environment has been formed in the vacuum chamber. The pressure sensor is used to monitor the air pressure inside the chamber.

[0018] After the experiment ends, the water body change-over valve changes direction, and the hydraulic pump works to pump water from the water tank into the cooling water channel, causing the aluminum sheets in the stacked aluminum sheets in the cylinder to cool down and return to their original state.

[0019] The entire experimental process is controlled and monitored by the console. The camera is used to observe the changes in the experimental materials during the experiment.

[0020] The described embodiments are the preferred embodiments of the present invention, but the present invention is not limited to the above embodiments. Without departing from the essential content of the present invention, any obvious improvements, substitutions, or modifications that those skilled in the art can make all fall within the protection scope of the present invention.

Claims

1. A vacuum experimental environment simulation device, characterized in that: It includes a console, a base, an upper cover, guide posts, a sealing cover, a gas reversing valve, a heating plate, and an aluminum sheet stack. A vacuum chamber with an upward opening is provided in the middle of the base. The bottom of the vacuum chamber is externally connected through the gas reversing valve. A pressure sensor is arranged in the gas vacuum chamber. The upper cover is hermetically and slidably sleeved on the vacuum chamber. Guide posts coaxially communicating with the vacuum chamber are inserted through the upper cover. The sealing cover is connected to the upper end face of the upper cover to cover the guide posts, and a camera is arranged on the lower end face of the guide post; Two or more aluminum sheet stacks are evenly arranged on the outer periphery of the vacuum chamber around the center of the base. The upper end face of the aluminum sheet stack abuts against the lower end face of the upper cover. A heating plate is arranged on the outer periphery of the aluminum sheet stack. The heating plate, the gas reversing valve, the pressure sensor, and the camera are all connected to the console; It further includes a water tank, a hydraulic pump, a water body reversing valve, and a guide cylinder body. The guide cylinder body is placed between the heating plate and the aluminum sheet stack. A cooling water channel is arranged in the guide cylinder body. The cooling water channel is externally connected to the water tank through the water body reversing valve and the hydraulic pump in sequence; The guide cylinder body is divided into an upper cylinder body and a lower cylinder body. The upper cylinder body is connected to the lower end of the upper cover, and the lower cylinder body is connected to the base. The upper cylinder body is coaxially sleeved in the lower cylinder body, and the cooling water channel is arranged in the lower cylinder body; The aluminum sheet stack is composed of multiple aluminum sheets stacked in sequence; A sealing ring is arranged between the sleeved wall of the upper cover and the vacuum chamber; A dust-proof ring is arranged at the sleeve interface of the upper cover and the vacuum chamber, and the dust-proof ring is pressed tightly by a pressing plate outside; The gas reversing valve is externally connected to an air processor and then to the atmosphere; During use, the gas reversing valve is reversed to make the vacuum chamber communicate with the air processed by the air processor. The upper cover is pressed downward to exhaust the gas in the inner cavity; Open the sealing cover, take out the guide post, put the required experimental materials into the vacuum chamber. After putting on the upper cover, cover the sealing cover, and reverse the gas reversing valve to make the inner cavity in a sealed state; The base and the upper cover are sealed by a sealing ring, and the dust-proof ring is pressed tightly by the dust-proof ring and the pressing plate above; At the beginning of the experiment, the heating plate works, and the aluminum sheet stack expands due to heat, slowly pushing up the upper cover. At this time, a vacuum environment has been formed in the vacuum chamber, and the pressure sensor is used to monitor the air pressure in the inner cavity; After the experiment is over, the water body reversing valve is reversed, and the hydraulic pump works to pump water from the water tank into the cooling water channel, so that the aluminum sheets in the aluminum sheet stack in the cylinder cool down and return to their original state.

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