Test box for detecting temperature reduction and heat reduction performance of building protective film

Abstract

The utility model discloses a test box for detecting the cooling and heat reducing performance of a building protective film, the interior of the box body is divided into a left space, a middle space and a right space by a longitudinal partition plate, the left space and the middle space are test areas, and the interior of each test area is divided into an upper compartment and a lower compartment by a horizontal partition plate; the compartment is provided with a downward infrared bulb, a temperature sensor and a temperature display, and the right side space is a body sensing area for a hand to touch and sense temperature. According to the utility model, a scene that a product is irradiated by sunlight in an exposed environment when the product is used on a metal roof can be simulated, comparison can be intuitively performed through different temperature display, and the tested product has heat insulation, cooling and reflection functions.

Description

Technical Field

[0001] This utility model relates to the technical field of testing building waterproof and anti-corrosion materials, specifically to a device for testing the heat resistance of building materials. Background Technology

[0002] Traditional waterproofing materials often require various performance tests before being put into use to determine if they meet project requirements. Waterproof membranes typically only undergo routine tests such as heat resistance and aging resistance. For example, product samples are placed in an oven, and their state under heating is observed and recorded for an extended period to understand the heat resistance of different samples at different times. To overcome the limitations of traditional materials, the applicant has developed an exposed building protective membrane. This membrane is made by coating a self-adhesive material onto a polymer film. When applied to metal roofs, it not only provides waterproofing and corrosion protection but also offers thermal insulation. Currently, there is no specialized equipment to test the thermal insulation and cooling performance of this product. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a device for testing the heat insulation and cooling properties of building protective films.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] The test chamber used for testing the cooling and heat reduction performance of building protective film has an interior divided into three spaces: left, middle and right by a longitudinal partition. The left and middle spaces are test areas, which are further divided into upper and lower compartments by horizontal partitions. Each compartment is equipped with a downward-facing infrared bulb, a temperature sensor and a temperature display.

[0006] The horizontal partition is a square frame structure, and test samples are placed on the horizontal partition. The test sample is a frame with a sample sandwiched in the middle. The sample is sheet metal or sheet metal with a building protective film on its surface.

[0007] The test area has vertically adjustable perforated plates installed on the two side walls of the upper compartment, with multiple adjustment holes on the plates arranged vertically. A horizontal adjustment plate is connected between the two vertically adjustable perforated plates through adjustment holes, and an infrared bulb facing downwards is installed on the bottom surface of the horizontal adjustment plate.

[0008] The space on the right is a tactile area for feeling temperature by hand. The tactile area has a sliding groove on the side corresponding to the door frame, and an outward-facing infrared bulb is installed in the tactile area.

[0009] Vertical adjustment perforated plates are installed horizontally on both sides of the somatosensory area, with multiple adjustment holes of the vertical adjustment perforated plates arranged horizontally. A horizontal adjustment plate is connected between the two vertical adjustment perforated plates through adjustment holes. The surface of the horizontal adjustment plate faces forward, and the infrared bulb is installed on the horizontal adjustment plate.

[0010] Each set of longitudinal partitions has two layers, with thermal insulation material filling the space between the two layers of longitudinal partitions.

[0011] By adopting the above technical solution, this utility model has the following advantages compared with the prior art:

[0012] This invention provides a direct comparison of different temperature displays obtained from different samples, simulating a scenario where the product is used on a metal roof exposed to sunlight, and testing shows that the product has heat insulation, cooling, and reflective functions. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 for Figure 1 Another perspective illustration;

[0015] Figure 3 This is the box frame structure of the present utility model. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0017] Example

[0018] like Figure 1 As shown, the test chamber used for testing the cooling and heat reduction performance of building protective film has its interior divided into three spaces—left, middle, and right—by a longitudinal partition 4. The left and middle spaces are test area 1 and test area 2, respectively, which facilitates the comparison of two sets of test results. The right space is a touch-sensitive area 3 for feeling the temperature by hand.

[0019] The interior of test area 1 on the left and test area 2 in the middle are further divided into upper and lower compartments by horizontal partitions 5. Vertical adjustment perforated plates 6 are installed on the side walls of the upper compartment, with multiple adjustment holes on the vertical adjustment perforated plates 6 arranged vertically. A horizontal adjustment plate 7 is connected between the two vertical adjustment perforated plates 6 through adjustment holes. An infrared bulb 8 is installed on the bottom surface of the horizontal adjustment plate 7, facing downwards. The installation height of the infrared bulb 8 can be adjusted by adjusting the different installation positions of the horizontal adjustment plate 7 on different adjustment holes. Temperature sensors 9 are installed on the side walls of each compartment in both test areas (only one sensor is shown in the attached figure). Temperature displays 14 are set above and below each compartment in test areas 1 and 2 to display the temperature of each compartment. A timer 15 is also set to time the illumination time in the test area.

[0020] See Figure 3 As shown, the middle horizontal partition 5 has a rectangular frame structure, meaning it is hollow in the middle. During the experiment, a test sample 10 was placed on each of the two test areas' horizontal partitions 5. Figure 2 The test template 10 shown is used to clamp the sample 11 within a frame 12. When the test template 10 is placed on the horizontal partition 5, the sample 11 is precisely aligned with the hollow part of the horizontal partition 5, and the sample 11 is also precisely located at the center of the infrared lamp 8. The samples 11 clamped in the two test templates 10 are different. The sample 11 placed in test area 1 is a sheet of iron (used to simulate a metal roof), while the sample 11 placed in test area 2 is a sheet of iron with a building protective film on its surface (used to simulate a metal roof using a building protective film), which facilitates comparative testing.

[0021] Each set of longitudinal partitions 4 has two layers, with thermal insulation material filling the space between the two layers of longitudinal partitions 4. The thermal insulation material can be asbestos, rock wool, polyurethane foam, fiberglass, or other materials. Both test area 1 and test area 2 are equipped with glass doors (not shown in the attached diagram).

[0022] See Figure 2 and Figure 3 As shown, horizontal adjustment perforated plates 6 are installed on both sides of the right-side somatosensory area 3, so that multiple adjustment holes of the horizontal adjustment perforated plates 6 are arranged horizontally. The left and right horizontal adjustment perforated plates 6 are connected to a horizontal adjustment plate 7 through adjustment holes. The surface of the horizontal adjustment plate 7 faces forward, and an outward-facing infrared bulb 8 is installed on the surface of the horizontal adjustment plate 7. By adjusting the installation position of the horizontal adjustment plate 7 in different adjustment holes, the front and back distance of the infrared bulb 8 can be adjusted.

[0023] The somatosensory area 3 has a sliding groove 13 on the side panel corresponding to the door frame. The sliding groove 13 is used to insert the test sample 10 from the side into the door frame of the somatosensory area 3, and after it is placed, the test sample 10 faces the direction of the infrared bulb 8. A timer 15 is installed below the door frame to display the illumination time of the infrared bulb 8.

[0024] The enclosure is equipped with a cooling fan and multiple ventilation holes 16. The cooling fan is installed on the side of the test area 1 and the top of the sensory area 3.

[0025] During testing, press the switch button in the test area to emit infrared light from the infrared bulbs 8 in the two compartments, which will then illuminate the two test samples 10. Test area 1 is used to simulate the scenario of a metal roof (without any heat insulation treatment) being exposed to sunlight in an outdoor environment. Test area 2 is used to simulate the scenario of a metal roof with heat insulation treatment being exposed to sunlight in an outdoor environment. Four temperature displays show the real-time temperature of the four compartments. The upper compartment shows the outdoor temperature of the roof, and the lower compartment shows the indoor temperature. At the same time, timer 15 can be turned on to start timing. For example, if the irradiation time is set to 15 seconds, the temperature data can be obtained as shown in the table below.

[0026] Temperature (°C) in test area 1 Temperature (°C) in test area 2 49.8 37.1 37.5 27.0

[0027] It can be seen that after applying the building protective film to the metal roof, the indoor temperature of 27.0℃ is much lower than the indoor temperature of 37.5℃ without any treatment, proving that the product has the function of cooling and heat reduction; moreover, the outdoor temperature of the roof of 37.1℃ is also much lower than the outdoor temperature of 49.8℃ of the untreated roof, indicating that the product has the function of reflecting sunlight, because the surface temperature is also lower.

[0028] The sensory area 3 of this invention is used to personally feel the temperature of the sample after it has been irradiated with infrared light. Pressing the button causes the infrared bulb 8 in the sensory area 3 to emit infrared light to irradiate the test sample 10 in front. By changing to different test samples 10, you can touch the test sample 10 with your hand to feel different surface temperatures.

[0029] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A test chamber for testing the cooling and heat reduction performance of building protective films, characterized in that: The interior of the enclosure is divided into three spaces: left, middle and right by a longitudinal partition. The left and middle spaces are test areas. The test areas are further divided into upper and lower compartments by horizontal partitions. Each compartment is equipped with a downward-facing infrared bulb, a temperature sensor and a temperature display. The horizontal partition is a square frame structure, and test samples are placed on the horizontal partition. The test sample is a frame with a sample sandwiched in the middle. The sample is sheet metal or sheet metal with a building protective film on its surface.

2. The test chamber for testing the cooling and heat reduction performance of building protective films as described in claim 1, characterized in that: The test area has vertically adjustable perforated plates installed on the two side walls of the upper compartment, with multiple adjustment holes on the plates arranged vertically. A horizontal adjustment plate is connected between the two vertically adjustable perforated plates through adjustment holes, and an infrared bulb facing downwards is installed on the bottom surface of the horizontal adjustment plate.

3. The test chamber for testing the cooling and heat reduction performance of building protective films as described in claim 1, characterized in that: The space on the right is a tactile area for feeling temperature by hand. The tactile area has a sliding groove on the side corresponding to the door frame, and an outward-facing infrared bulb is installed in the tactile area.

4. The test chamber for testing the cooling and heat reduction performance of building protective films as described in claim 3, characterized in that: Vertical adjustment perforated plates are installed horizontally on both sides of the somatosensory area, with multiple adjustment holes of the vertical adjustment perforated plates arranged horizontally. A horizontal adjustment plate is connected between the two vertical adjustment perforated plates through adjustment holes. The surface of the horizontal adjustment plate faces forward, and the infrared bulb is installed on the horizontal adjustment plate.

5. The test chamber for testing the cooling and heat reduction performance of building protective films as described in claim 1, characterized in that: Each set of longitudinal partitions has two layers, with thermal insulation material filling the space between the two layers of longitudinal partitions.

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