Sealed asphalt ultraviolet aging oxygen isolation box

Abstract

The sealed asphalt ultraviolet aging oxygen isolation box comprises a box body and a box cover which are made of aluminum alloy materials, an air inlet pipe and an air outlet pipe are arranged on the two sides of the box body respectively, the air inlet pipe and the air outlet pipe are communicated with the interior of the box body, an opening is formed in the upper end of the box body, and the box cover for sealing the interior of the box body is arranged on the opening. An opening is formed in the box cover, a sealing structure matched with the box cover is arranged at the opening, transparent silicon steel glass is arranged on the box cover to form a window for transmitting ultraviolet light, a first valve is arranged on the air inlet pipe, and an oxygen concentration sensor, an air pressure sensor and a second valve are sequentially arranged on the air outlet pipe. The box body and the box cover are made of light materials and better in heat conductivity, and the silicon steel glass can effectively transmit ultraviolet light, so that the radiation intensity of the ultraviolet light entering the box body is not reduced, and a good sealing effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of material aging research, specifically to a sealed asphalt ultraviolet aging oxygen-barrier box. Background Technology

[0002] In experimental testing of the effects of ultraviolet radiation in sunlight on material aging, a specialized oxygen-free chamber is required. Traditional ultraviolet aging oxygen-free chambers have the following disadvantages:

[0003] (1) Most existing UV aging oxygen isolation chambers rely solely on the weight of the upper glass pressing on the rubber strip for oxygen isolation, resulting in poor sealing and ineffective oxygen isolation.

[0004] (2) Some experimenters used inert gases such as nitrogen to isolate oxygen, but because the equipment could not effectively isolate oxygen, they had to keep adding gas, which resulted in a waste of gas materials.

[0005] (3) Most of the existing UV aging oxygen isolation boxes are made of cast iron, which not only has a large self-weight but also a poor thermal conductivity, increasing the difficulty of transportation and delaying the experimental process.

[0006] (4) The existing oxygen isolation boxes lack oxygen and pressure measurement equipment, thus failing to maximize the application of the equipment.

[0007] (5) The materials of the transparent glass used in the current oxygen isolation equipment are not the same. Some glass plates reflect or filter ultraviolet light, which makes the test fail to achieve the expected purpose. Utility Model Content

[0008] To address the aforementioned shortcomings of existing technologies, this utility model provides a sealed asphalt UV aging oxygen barrier box, which is transparent to ultraviolet light, can be sealed, and is connected to an aluminum oxygen barrier device for measuring oxygen and pressure.

[0009] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows:

[0010] A sealed asphalt UV aging oxygen-barrier box is provided, comprising an aluminum alloy box body and a box cover. An air inlet pipe and an air outlet pipe are respectively provided on both sides of the box body, and both the air inlet pipe and the air outlet pipe are connected to the interior of the box body. The upper end of the box body is open, and a box cover that seals the interior of the box body is provided on the opening. A sealing structure that cooperates with the box cover is provided at the opening. A transparent silicon steel glass is provided on the box cover to form a window for transmitting ultraviolet light. A first valve is provided on the air inlet pipe, and an oxygen concentration sensor, an air pressure sensor and a second valve are sequentially provided on the air outlet pipe.

[0011] Furthermore, the sealing structure includes a step provided inside the opening, a groove provided on the upper surface of the step, a rubber strip provided in the groove, and a boss provided on the lower surface of the lid that mates with the step, with a protruding ridge at the lower end of the boss for compressing the rubber strip.

[0012] Furthermore, a rubber layer is provided on the side wall of the box between the opening and the step, and the rubber layer is squeezed and sealed with the side wall of the boss.

[0013] Furthermore, the height of the rubber strip is greater than the depth of the settling tank.

[0014] Furthermore, several lower connecting ears are provided around the outer side of the opening, and threaded holes are provided on the lower connecting ears. Several upper connecting ears are provided on the edge of the cover, corresponding to the positions of the lower connecting ears, and light holes are provided on the upper connecting ears. The lower connecting ears and the upper connecting ears are connected by bolts.

[0015] Furthermore, a heater and a thermometer are installed inside the box, both of which are suspended on the inner wall of the box.

[0016] The beneficial effects of this utility model are as follows: The box body and lid are made of aluminum alloy, which, compared to cast iron, not only reduces weight but also has better thermal conductivity. The silicon steel glass on the lid effectively transmits ultraviolet light, ensuring that the intensity of ultraviolet radiation entering the box is not reduced. Inert gas is introduced into the box through the inlet pipe to remove oxygen from the box. A pressure sensor is designed to detect the pressure inside the box, preventing damage or explosion due to excessive pressure. An oxygen concentration sensor detects the oxygen concentration inside the box. After the oxygen is continuously purged, the first and second valves at both ends are closed, achieving a good oxygen isolation effect with the help of the sealing structure. A hanging heater and thermometer are installed inside the box, allowing for temperature detection and control during external ultraviolet aging to achieve the required test temperature. Attached Figure Description

[0017] Figure 1 This is a structural diagram of the box.

[0018] Figure 2 This is a structural diagram of the box lid.

[0019] The components are as follows: 1. Box body, 2. First valve, 3. Inlet pipe, 4. Lower connecting ear, 5. Step, 6. Outlet pipe, 7. Second valve, 8. Oxygen concentration sensor, 9. Pressure sensor, 10. Heater, 11. Thermometer, 12. Box cover, 13. Upper connecting ear, 14. Silicon steel glass, 15. Boss, 16. Rib. Detailed Implementation

[0020] The specific embodiments of this utility model are described below to enable those skilled in the art to understand this utility model. However, it should be understood that this utility model is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes are within the spirit and scope of this utility model as defined and determined by the appended claims, these changes are obvious. All utility model creations utilizing the concept of this utility model are within the scope of protection.

[0021] like Figure 1 and Figure 2 As shown, a sealed asphalt UV aging oxygen-barrier box includes an aluminum alloy box body 1 and a box cover 12. An air inlet pipe 3 and an air outlet pipe 6 are respectively provided on both sides of the box body 1. Both the air inlet pipe 3 and the air outlet pipe 6 are connected to the inside of the box body 1. During the process of emptying the oxygen in the box body 1, the air inlet pipe 3 is connected to an inert gas conveying device. Inert gas enters from the air inlet pipe 3, carries oxygen, and then exits from the air outlet pipe 6.

[0022] The upper end of the box body 1 is open, and a box cover 12 is provided on the opening to seal the inside of the box body 1. A sealing structure that cooperates with the box cover 12 is provided at the opening. A transparent silicon steel glass 14 is provided on the box cover 12 to form a window for transmitting ultraviolet light. A first valve 2 is provided on the air inlet pipe 3, and an oxygen concentration sensor 8, a gas pressure sensor 9, and a second valve 7 are sequentially provided on the air outlet pipe 6.

[0023] The box body 1 and lid 12 of this invention are made of aluminum alloy, which, compared to cast iron, not only reduces weight but also provides better thermal conductivity. The silicon steel glass on the lid 12 effectively transmits ultraviolet light, ensuring that the intensity of ultraviolet radiation entering the box body 1 is not reduced. Inert gas is introduced into the box body 1 through the inlet pipe 3 to remove oxygen from the box body 1. A pressure sensor 9 is designed to detect the pressure inside the box body 1, preventing damage or explosion due to excessive pressure. The oxygen concentration inside the box body 1 is detected by an oxygen concentration sensor 8. After the oxygen is continuously purged, the first valve 2 and the second valve 7 at both ends are closed. With the cooperation of the sealing structure, a good oxygen isolation effect is achieved.

[0024] In this embodiment, the sealing structure includes a step 5 disposed inside the opening. A groove is formed on the upper surface of the step 5, and a rubber strip is placed within the groove. A boss 15, which mates with the step 5, is formed on the lower surface of the lid 12. A protruding ridge 16, which compresses the rubber strip, is located at the lower end of the boss 15. When the lid 12 is fastened onto the box body 1, a good seal is achieved by compressing the rubber strip. The sealing rubber strip is circumferentially long and has a beveled design on its contact surface with the protruding ridge 16, further enhancing the sealing effect.

[0025] In this embodiment, a rubber layer is provided on the side wall of the box 1 between the opening and the step 5. The rubber layer is squeezed and sealed against the side wall of the boss 15. During the process of the box 1 and the lid 12 fitting together, the side of the boss 15 can also squeeze the rubber layer to ensure a tight fit between the two and prevent loosening. At the same time, it can further increase the sealing effect and meet the high-pressure sealing requirements inside the box 1.

[0026] In this embodiment, the height of the rubber strip is greater than the depth of the groove to ensure that the lid 12 can make close contact with the rubber strip when it is pressed down.

[0027] In this embodiment, several lower connecting ears 4 are provided around the outer perimeter of the opening, and threaded holes are provided on the lower connecting ears 4. Several upper connecting ears 13 are provided along the edge of the cover 12, corresponding to the positions of the lower connecting ears 4. Light holes are provided on the upper connecting ears 13. The lower connecting ears 4 and the upper connecting ears 13 are connected by bolts. The box body 1 and the cover 12 are connected by bolts for easy installation and disassembly, and provide a good sealing effect.

[0028] In this embodiment, a heater 10 and a thermometer 11 are installed inside the housing 1, and both the heater 10 and the thermometer 11 are suspended on the inner wall of the housing 1. The installation of the hanging heater 10 and thermometer 11 inside the housing 1 allows for the detection and control of the internal temperature while the external ultraviolet aging process is being carried out, so as to achieve the required test temperature.

Claims

1. A sealed asphalt UV aging oxygen-barrier box, characterized in that, The device includes an aluminum alloy box body and a box lid. An air inlet pipe and an air outlet pipe are respectively installed on both sides of the box body, both of which are connected to the interior of the box body. The top of the box body is open, and a box lid that seals the interior of the box body is installed on the opening. A sealing structure that cooperates with the box lid is provided at the opening. The box lid is made of transparent silicon steel glass, forming a window that transmits ultraviolet light. A first valve is installed on the air inlet pipe, and an oxygen concentration sensor, a gas pressure sensor, and a second valve are sequentially installed on the air outlet pipe.

2. The sealed asphalt UV aging oxygen-barrier box according to claim 1, characterized in that, The sealing structure includes a step set inside the opening, a groove on the upper surface of the step, a rubber strip inside the groove, and a boss on the lower surface of the lid that mates with the step, with a protruding ridge at the lower end of the boss to compress the rubber strip.

3. The sealed asphalt UV aging oxygen-barrier box according to claim 2, characterized in that, A rubber layer is provided on the side wall of the box between the opening and the step, and the rubber layer is squeezed and sealed to the side wall of the boss.

4. The sealed asphalt UV aging barrier box according to claim 2, characterized in that, The height of the rubber strip is greater than the depth of the settling trough.

5. The sealed asphalt UV aging isolation box according to claim 1, characterized in that, A plurality of lower connecting ears are provided around the outer side of the opening, and threaded holes are provided on the lower connecting ears. A plurality of upper connecting ears corresponding to the positions of the lower connecting ears are provided on the edge of the box cover, and light holes are provided on the upper connecting ears. The lower connecting ears and the upper connecting ears are connected by bolts.

6. The sealed asphalt UV aging oxygen-barrier box according to claim 1, characterized in that, The box contains a heater and a thermometer, both of which are suspended on the inner wall of the box.

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