Ultraviolet aging oven for geosynthetic testing

Abstract

This invention proposes a UV aging chamber for testing geosynthetics, belonging to the field of materials testing technology. It solves the problems of inconvenient sample handling and limited environmental simulation in existing equipment. The chamber integrates UV irradiation, spraying, and sample carrying components, which are physically isolated at the top, middle, and bottom to prevent spray water from splashing onto the UV lamps. The UV irradiation component includes a perforated lamp holder, a UV lamp, and a mounting base; the spraying component simulates rainfall through a water inlet, water pipe, and nozzle; the sample carrying component includes a sample plate, sample slot, push-pull handle, and slider groove structure, facilitating sample loading and unloading and improving the convenience of testing operations. Furthermore, the operating area on one side of the chamber features control knobs, indicator lights, and switches, allowing for flexible adjustment of test parameters and display of equipment status, further improving testing accuracy and efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of materials testing technology, specifically relating to an ultraviolet aging chamber for testing geosynthetic materials. Background Technology

[0002] Geosynthetics are widely used in many civil engineering fields such as road construction, water conservancy projects, and soil and rock reinforcement due to their excellent filtration, drainage, reinforcement, and protection properties. However, in actual use, these materials are exposed to the natural environment for a long time, and ultraviolet radiation is one of the key factors leading to their performance degradation. Ultraviolet rays can damage the molecular structure of geosynthetics, causing material aging, resulting in a decrease in mechanical properties and durability, which in turn affects the stability and service life of the entire project.

[0003] Currently, to evaluate the UV aging resistance of geosynthetics, UV aging chambers are commonly used to simulate the natural UV environment for material testing. However, existing UV aging chambers have several shortcomings: some are limited to UV irradiation testing, while others have unreasonable structural designs with tightly packed integrated components. During spraying, water can easily splash onto the UV lamps, affecting normal UV emission, posing safety hazards such as short circuits, and interfering with the stability of the testing environment. Furthermore, the sample racks in existing equipment are mostly fixed inside the chamber, and the limited space restricts arm movement, making sample placement and removal inconvenient and affecting testing efficiency. Therefore, this invention provides a UV aging chamber for testing geosynthetics to solve the above problems. Utility Model Content

[0004] This invention addresses the problems of the prior art by providing a UV aging chamber for testing geosynthetics.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: A UV aging chamber for testing geosynthetic materials includes a chamber body. Inside the chamber body, from top to bottom, are arranged a UV irradiation component, a spray component, and a sample carrying component. The UV irradiation component includes a UV lamp to conduct light irradiation testing on geosynthetic material samples in the sample tank of the sample carrying component. The spray component includes a water inlet, a water supply pipe, nozzles, and an L-shaped support base. The water inlet penetrates through the side wall of the chamber body and is connected to an external water source. The water supply pipe has a U-shaped structure and is laid along the inner wall of the chamber body. Multiple columnar nozzles are evenly distributed along the water supply pipe to spray the sample for testing. The horizontal surface of the support base supports the water supply pipe, and the vertical surface is fixed to the inner wall of the chamber body by bolts.

[0006] Preferably, the ultraviolet irradiation assembly further includes a lamp holder and an L-shaped fixing base. The lamp holder is a cuboid structure with a hollow bottom surface, and its length is adapted to the internal space of the box. The horizontal side of the fixing base is fixed to the lamp holder, and the vertical side is fixed to the inner wall of the box by bolts.

[0007] Preferably, the sample carrying assembly includes a sample plate, a sample slot, a push-pull handle, a slider, and a slide groove. The top surface of the sample plate is provided with a sample slot for placing the sample, the bottom surface of the sample plate is fixed with a slider, the slide groove is fixed to the bottom surface inside the box, the slider and the slide groove slide in cooperation, and the push-pull handle is fixed to the side of the sample plate.

[0008] Preferably, the box body is equipped with a box door, which is rotatably connected to the front of the box body via a hinge. The box door is equipped with a handle, and support feet are fixedly connected to the four corners of the lower surface of the box body.

[0009] Preferably, a control knob one, a control knob two, an indicator light, and a switch are sequentially installed on one side of the housing. Both control knob one and control knob two are rotary adjustment knobs, and the switch is a toggle switch.

[0010] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. The integrated spraying component connects to an external water source through the inlet and sprays water into the box through a U-shaped water pipe and columnar nozzles. It simulates the combination of natural rainfall and ultraviolet radiation, which can simulate the aging process of geosynthetic materials under the simultaneous action of ultraviolet rays and rainwater in the actual environment. 2. In the sample carrier assembly, the sample plate slides with a slider and a groove, and with the push-pull handle on the side, it can be easily pulled out, making it more convenient and faster. At the same time, the sample groove on the top surface of the sample plate can effectively limit the sample, ensuring the stability of the sample posture during the test, avoiding the impact of sample displacement on the test results, and improving the convenience of the test operation and the reliability of the test results. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 Internal structure diagram; Figure 3 for Figure 2The main view; Figure 4 for Figure 2 Top view; In the above figures, 1. Box body; 101. Control knob one; 102. Control knob two; 103. Indicator light; 104. Switch; 2. Box door; 21. Handle; 3. Support leg; 4. Water inlet; 5. Lamp holder; 6. UV lamp; 7. Fixture; 8. Water pipe; 9. Nozzle; 10. Support base; 11. Sample plate; 12. Sample tank; 13. Push-pull handle; 14. Slider; 15. Slide groove. Detailed Implementation

[0013] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0014] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0015] Example 1, such as Figures 1-4 As shown, this application discloses an ultraviolet aging chamber for testing geosynthetics, comprising a chamber body 1, wherein the chamber body 1 is equipped with a chamber door 2, the chamber door 2 being made of heat-insulating glass, which facilitates observation of the test conditions inside the chamber and reduces heat exchange between the inside and outside of the chamber. The chamber door 2 is rotatably connected to the front edge of the chamber body 1 via a hinge, allowing for flexible opening and closing. A handle 21 is welded onto the chamber door 2, providing a point of leverage for opening and closing the chamber door 2. Support feet 3 are fixedly installed at the four corners of the lower surface of the chamber body 1 to support the chamber body 1 and to maintain a certain distance between the chamber body 1 and the ground to facilitate ventilation and heat dissipation of the equipment.

[0016] The enclosure 1 integrates an ultraviolet irradiation component, a spray component, and a sample carrying component, located at the upper, middle, and lower parts of the enclosure 1, respectively. Physical isolation prevents spray water from splashing onto the ultraviolet lamp tubes while maintaining the effectiveness of ultraviolet irradiation and spraying. The ultraviolet irradiation component includes a lamp holder 5, an ultraviolet lamp 6, and a mounting base 7. The lamp holder 5 is a cuboid with a hollowed-out bottom, and its length is adapted to the internal space of the enclosure 1. The ultraviolet lamp 6 is installed and fixed inside the lamp holder 5. The mounting base 7 is an L-shaped structure with one horizontal side. The lamp holder 5 is fixed to the lamp base 5, and the vertical side is bolted to the inner surface of the housing 1. The hollow design of the bottom surface of the lamp holder 5 ensures that the ultraviolet light emitted by the ultraviolet lamp 6 covers the geosynthetic material sample. Multiple sets of lamp holder 5 and ultraviolet lamp 6 are provided to ensure a sufficiently large irradiation range. The spray assembly includes a water inlet 4, a water pipe 8, a nozzle 9, and a support base 10. The water inlet 4 penetrates one side of the housing 1, with one end connected to an external water source to provide water for the spray, and the other end connected to the water pipe 8. The water supply pipe 8 is a U-shaped tubular structure, laid along the inner wall of the box 1 to form a spray water path. Several nozzles 9 are evenly distributed along the pipe 8; each nozzle 9 is a columnar spray head used to spray water into the box to simulate natural rainfall. A support base 10 is installed under the water supply pipe 8. The support base 10 has an L-shaped structure, supporting the water supply pipe 8 horizontally and fixing it vertically to the inner surface of the box 1 with bolts to ensure the stability of the water supply pipe 8. The sample carrying assembly includes a sample plate. 11. Sample slots 12, push-pull handles 13, sliders 14 and slides 15. The sample plate 11 is a flat plate structure with several sample slots 12 cut into its top surface for sample placement and positioning, ensuring sample stability during testing. The push-pull handle 13 is fixed to the side of the sample plate 11. The slider 14 is fixedly installed on the bottom surface of the sample plate 11. The slides 15 are fixedly installed on the bottom surface inside the housing 1. The slider 14 and the slides 15 slide together to realize the pull-out operation of the sample plate 11, which facilitates sample loading and unloading and solves the problem of inconvenient traditional handling.

[0017] An operating area is provided on one side of the housing 1, in which control knob 101, control knob 2 102, indicator light 104, and switch 103 are installed in sequence. Both control knob 101 and control knob 2 102 are rotary adjustment knobs. Control knob 101 can adjust the irradiation power of the ultraviolet lamp 6, and control knob 2 102 is used to set the spraying time of the nozzle 9. By adjusting the parameters, the test environment can be controlled, improving the flexibility of parameter setting. The switch 103 is a toggle type, used to control the power supply of the entire equipment, ensuring safe and convenient operation. The indicator light 104 is used to display the operating status of the equipment, allowing operators to intuitively understand the equipment's operating status.

[0018] Working principle: First, open the chamber door 2, pull out the sample plate 11 using the push-pull handle 13 on the side of the sample plate 11, place the sample in the sample slot 12 on the top surface for limiting and fixing, and then push it back; turn on the equipment using the switch 103 in the operation area, and use the control knob 101 and control knob 2 102 to adjust the irradiation power of the ultraviolet lamp 6 and the spray duration of the nozzle 9 respectively, while the indicator light 104 displays the equipment status; after the equipment is started, the ultraviolet lamps 6 in the multiple lamp holders 5 in the ultraviolet irradiation assembly irradiate the sample, and the spray assembly allows water to flow into the water supply pipe 8 through the water inlet 4, and the nozzle 9 simulates rainfall. The upper, middle and lower sections of the chamber 1 are designed to ensure that the spray water does not splash onto the ultraviolet lamp tubes, ensuring that the ultraviolet irradiation and spraying effects do not interfere with each other, and work together to conduct aging tests on the sample. After the test is completed, turn off the switch 103, open the chamber door 2 and take out the sample for subsequent performance testing and analysis.

[0019] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A UV aging chamber for testing geosynthetics, characterized in that, The container includes a box (1), inside which a UV irradiation assembly, a spray assembly and a sample carrying assembly are arranged sequentially from top to bottom. The UV irradiation assembly includes a UV lamp (6) to perform light irradiation testing on the geosynthetic material sample in the sample tank (12) of the sample carrying assembly. The spray assembly includes a water inlet (4), a water pipe (8), a nozzle (9) and an L-shaped support base (10). The water inlet (4) penetrates through the side wall of the box (1) and is connected to an external water source. The water pipe (8) has a U-shaped structure and is laid along the inner wall of the box (1). Multiple columnar nozzles (9) are evenly distributed on the body of the water pipe (8) to perform spray testing on the sample. The horizontal surface of the support base (10) supports the water pipe (8), and the vertical surface is fixed to the inner wall of the box (1) by bolts.

2. The ultraviolet aging chamber for testing geosynthetics according to claim 1, characterized in that, The ultraviolet irradiation assembly also includes a lamp holder (5) and an L-shaped fixing seat (7). The lamp holder (5) is a cuboid structure with a hollow bottom. The length of the lamp holder (5) is adapted to the internal space of the box (1). The horizontal side of the fixing seat (7) is fixed to the lamp holder (5), and the vertical side is fixed to the inner wall of the box (1) by bolts.

3. The ultraviolet aging chamber for testing geosynthetics according to claim 1, characterized in that, The sample carrying assembly includes a sample plate (11), a sample groove (12), a push-pull handle (13), a slider (14), and a slide (15). The top surface of the sample plate (11) is provided with a sample groove (12) for placing the sample. The bottom surface of the sample plate (11) is fixed with a slider (14). The slide (15) is fixed to the bottom surface inside the box (1). The slider (14) and the slide (15) slide together. The push-pull handle (13) is fixed to the side of the sample plate (11).

4. The ultraviolet aging chamber for testing geosynthetics according to claim 1, characterized in that, The box body (1) is equipped with a box door (2), which is connected to the front of the box body (1) by a hinge. The box door (2) is equipped with a handle (21), and support feet (3) are fixedly connected to the four corners of the lower surface of the box body (1).

5. The ultraviolet aging chamber for testing geosynthetics according to claim 1, characterized in that, The box (1) is equipped with a control knob one (101), a control knob two (102), an indicator light (104) and a switch (103) in sequence on one side. The control knob one (101) and the control knob two (102) are both rotary adjustment knobs, and the switch (103) is a toggle type.

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