A constant temperature and humidity detection device for building coating VOCs release amount

Abstract

The utility model discloses a kind of building coating VOCs release amount constant temperature and humidity detection device, it is related to pollution gas detection technical field, including detection table, the inner cavity is opened in the detection table, support table is arranged in the inner cavity, the air pump is fixedly installed in support table top, air inlet pipe is fixedly connected in the air pump side;The filter screen of the present utility model is set in the air inlet pipe mouth, can effectively filter out the particulate matter such as dust in the gas containing VOCs before entering constant temperature and humidity machine, fundamentally prevents dust from being wetted in constant temperature and humidity machine and adhering in subsequent air path inner wall such as air guide pipe, ensure the cleanness of gas pipeline, improve the accuracy of detection, by the sliding fit structure of sliding slot and sliding block, so that support table and its air pump, air inlet pipe and filter screen and other core components can be integrally removed from the inner cavity, greatly provide the operation convenience and space for the replacement, cleaning of filter screen and the overhaul of air pump and other components.

Description

Technical Field

[0001] This utility model relates to the field of pollutant gas detection technology, specifically a constant temperature and humidity detection device for VOCs emission from building coatings. Background Technology

[0002] Architectural coatings release volatile organic compounds (VOCs) during production and use, which pose a potential threat to indoor air quality and human health.

[0003] However, the existing system still has some shortcomings: if the gas to be tested is not effectively filtered before entering the constant temperature and humidity machine, the dust and other particulate matter contained in it will enter the constant temperature and humidity system. When the constant temperature and humidity machine processes the gas, it will adjust the temperature and humidity. The dust particles in the gas are easily moistened by the humidity change, and thus more easily adhere to the inner wall of the subsequent gas pipeline.

[0004] To address this issue, we designed a constant temperature and humidity detection device for VOCs emission from architectural coatings. Utility Model Content

[0005] The purpose of this invention is to provide a constant temperature and humidity detection device for VOCs emission from building coatings, so as to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides a constant temperature and humidity detection device for VOCs emission of building coatings, including a detection platform with an inner cavity. A support platform is provided in the inner cavity. An air pump is fixedly installed on the top of the support platform. An air inlet pipe is fixedly connected to one side of the air pump. A rotating shaft is fixedly installed on the inlet of the air inlet. A filter screen is movably connected to the inlet of the air inlet. A scraper is rotatably connected to the rotating shaft. A handle is fixedly installed on one side of the scraper.

[0007] Furthermore, a placement box and a dust collection box are movably connected within the groove opened on the support platform, and the dust collection box is located directly below the air inlet.

[0008] Furthermore, the top of the testing platform and the bottom of the support platform are both provided with sliding grooves, and a slider is slidably connected in the sliding grooves. The top of the slider is fixedly connected to the bottom of the support platform.

[0009] Furthermore, the length of the groove is greater than the length from the air inlet to the placement box.

[0010] Furthermore, a testing door is hinged to the front of the testing platform, and a constant temperature and humidity machine is fixedly installed on the back of the testing platform near the bottom.

[0011] Furthermore, a vent pipe is movably connected to one side of the constant temperature and humidity machine, and a detector is movably connected to one end of the vent pipe.

[0012] Furthermore, a display screen is fixedly installed on one side of the detector, and an exhaust pipe is fixedly installed on the vertical surface on which the display screen is mounted.

[0013] Furthermore, one side of the air pump is connected to the constant temperature and humidity machine via an air guide pipe, and the air guide pipe is extendable.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. In this utility model, by setting a filter screen at the inlet of the air inlet, particulate matter such as dust in the gas containing VOCs can be effectively filtered out before it enters the constant temperature and humidity machine. This fundamentally prevents dust from being soaked in the constant temperature and humidity machine and adhering to the inner wall of the air guide pipe and other subsequent air passages, ensuring the cleanliness of the gas pipeline and improving the accuracy of the test.

[0015] 2. In this utility model, the sliding fit structure of the groove and the slider allows the support platform and its core components such as the air pump, air inlet pipe and filter screen to be moved out of the inner cavity as a whole, which provides great convenience and space for the replacement and cleaning of the filter screen and the maintenance of components such as the air pump. Attached Figure Description

[0016] Figure 1 This is a side view of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of this utility model; Figure 3 This is a cross-sectional schematic diagram of a portion of the structure of this utility model; Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0017] In the diagram: 1. Testing platform; 2. Constant temperature and humidity chamber; 3. Air duct; 4. Detector; 5. Exhaust pipe; 6. Display screen; 7. Testing door; 8. Inner cavity; 9. Support platform; 10. Air pump; 11. Air inlet pipe; 12. Placement box; 13. Dust collection box; 14. Slide rail; 15. Slider; 16. Filter screen; 17. Scraper; 18. Rotary handle; 19. Rotary shaft. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-4 This utility model provides a technical solution: a constant temperature and humidity detection device for VOCs emission of building coatings, comprising a detection platform 1, characterized in that the detection platform 1 has an inner cavity 8, a support platform 9 is provided in the inner cavity 8, an air pump 10 is fixedly installed on the top of the support platform 9, an air inlet pipe 11 is fixedly connected to one side of the air pump 10, a rotating shaft 19 is fixedly installed on the inlet of the air inlet pipe 11, a filter screen 16 is movably connected to the inlet of the air inlet pipe 11, a scraper 17 is rotatably connected to the rotating shaft 19, and a handle 18 is fixedly installed on one side of the scraper 17.

[0020] In practice, the architectural coating sample to be tested is placed in the placement box 12 of the inner cavity 8, and the detection door 7 is closed to form a sealed detection environment. The air pump 10 is started, and the gas in the inner cavity 8 is drawn to the detection mechanism through the air inlet pipe 11. The filter screen 16 can effectively filter dust and other particulate matter in the gas, preventing them from entering the subsequent detection system and adhering to the inner wall of the air pipe. When the filter screen 16 needs to be cleaned, the scraper 17 is rotated around the rotating shaft 19 by turning the handle 18, which can remove the impurities adhering to the filter screen 16.

[0021] See Figure 1-4 The support platform 9 has a groove in which a placement box 12 and a dust collection box 13 are movably connected, and the dust collection box 13 is located directly below the inlet of the air inlet pipe 11.

[0022] In practice, the placement box 12 can be used to temporarily store paint samples to be tested or necessary testing tools. Dust and other impurities removed from the filter screen 16 by the scraper 17 fall into the dust collection box 13 directly below under gravity, making it easy to clean and keep the inner cavity 8 clean.

[0023] See Figure 1-4 The top of the testing table 1 and the bottom of the support table 9 are both provided with sliding grooves 14. A slider 15 is slidably connected in the sliding grooves 14, and the top of the slider 15 is fixedly connected to the bottom of the support table 9.

[0024] In practice, through the sliding cooperation between the slider 15 and the slide groove 14, the support platform 9 and the air pump 10 and other components installed on it can move smoothly back and forth in the inner cavity 8, which facilitates the inspection, replacement or cleaning of components such as the air pump 10, the air inlet pipe 11 and the filter screen 16.

[0025] See Figure 1-4 The length of the groove 14 is greater than the length from the inlet of the air inlet pipe 11 to the placement box 12.

[0026] In practice, it is ensured that the support platform 9 can be fully pulled out, so that the opening of the air intake pipe 11 can be fully exposed and pass over the position of the placement box 12, thereby providing the operator with sufficient operating space to replace or clean the filter screen 16 without obstruction.

[0027] See Figure 1-4 The front of the testing platform 1 is hinged with a testing door 7, and a constant temperature and humidity machine 2 is fixedly installed on the back of the testing platform 1 near the bottom.

[0028] In practice, the testing door 7 is used to seal the inner cavity 8 to simulate a stable testing environment. The temperature and humidity control chamber 2 is used to provide and maintain clean air with the specific temperature and humidity required for testing, ensuring that the testing conditions meet the standard requirements.

[0029] See Figure 1-4 The constant temperature and humidity machine 2 is movably connected to one side of the air guide pipe 3, and the detector 4 is movably connected to one end of the air guide pipe 3.

[0030] In practice, the gas processed by the constant temperature and humidity machine 2 is transported to the detector 4 through the gas guide pipe 3.

[0031] See Figure 1-4 The detector 4 has a display screen 6 fixedly installed on one side, and an exhaust pipe 5 is fixedly installed on the vertical surface on which the display screen 6 is installed.

[0032] In practice, the detector 4 accurately analyzes the concentration of VOCs released in the introduced gas, and the analysis results are displayed on the display screen 6 in real time. The gas after the test is completed is safely discharged through the exhaust pipe 5.

[0033] See Figure 1-4 The air pump 10 is connected to the constant temperature and humidity machine 2 via an air guide pipe 3 on one side, and the air guide pipe 3 is extendable.

[0034] In practice, the air pump 10 is connected to the constant temperature and humidity machine 2 through the extendable air guide pipe 3, ensuring that the air guide pipe 3 can extend and retract along the slide 14 when the support platform 9 moves along the slide 14, without falling off or interfering, thus ensuring the continuity and reliability of the gas pipeline.

[0035] Working principle: During testing, the prepared architectural coating sample is first placed in the placement box 12 of the inner cavity 8 of the testing table 1. The testing door 7 is closed to form a sealed space. The constant temperature and humidity machine 2 is started to continuously supply clean air that meets the testing standards, providing a stable simulated release environment for the coating sample. The air pump 10 works simultaneously to extract the gas in the inner cavity 8, which has been fully mixed with the coating sample and contains released VOCs, through the air inlet pipe 11. Before entering the air pump 10, the gas is first filtered by the filter screen 16 to remove any possible particulate matter. The extracted gas then passes through a... The flexible air duct 3 delivers the gas to the constant temperature and humidity machine 2 for temperature and humidity adjustment or directly to the detector 4. The detector 4 accurately measures and analyzes the VOCs concentration in the gas and displays the results on the display screen 6 in real time. After the test is completed, the gas is discharged through the exhaust pipe 5. When the filter screen 16 accumulates dust due to long-term use and affects the ventilation, the detection door 7 can be opened. The support platform 9 can be pulled out by the cooperation of the slide groove 14 and the slider 15. Then, the handle 18 is turned so that the scraper 17 removes the impurities on the filter screen 16. The impurities fall into the dust collection box 13 for easy cleaning.

[0036] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A constant temperature and humidity testing device for VOCs emission from architectural coatings, comprising a testing platform (1), characterized in that, The testing platform (1) has an inner cavity (8) and a support platform (9) is provided in the inner cavity (8). An air pump (10) is fixedly installed on the top of the support platform (9). An air inlet pipe (11) is fixedly connected to one side of the air pump (10). A rotating shaft (19) is fixedly installed on the inlet of the air inlet pipe (11). A filter screen (16) is movably connected to the inlet of the air inlet pipe (11). A scraper (17) is rotatably connected to the rotating shaft (19). A handle (18) is fixedly installed on one side of the scraper (17).

2. The constant temperature and humidity detection device for VOCs emission from building coatings as described in claim 1, characterized in that, The groove on the support platform (9) is movably connected to the placement box (12) and the dust collection box (13), and the dust collection box (13) is located directly below the inlet of the air inlet pipe (11).

3. The constant temperature and humidity detection device for VOCs emission from building coatings as described in claim 1, characterized in that, The top of the testing platform (1) and the bottom of the support platform (9) are both provided with sliding grooves (14), and a slider (15) is slidably connected in the sliding grooves (14). The top of the slider (15) is fixedly connected to the bottom of the support platform (9).

4. The constant temperature and humidity detection device for VOCs emission of building coatings as described in claim 3, characterized in that, The length of the groove (14) is greater than the length from the inlet of the air inlet pipe (11) to the placement box (12).

5. The constant temperature and humidity detection device for VOCs emission of building coatings as described in claim 1, characterized in that, The front of the testing platform (1) is hinged with a testing door (7), and a constant temperature and humidity machine (2) is fixedly installed on the back of the testing platform (1) near the bottom.

6. The constant temperature and humidity detection device for VOCs emission of building coatings as described in claim 5, characterized in that, The constant temperature and humidity machine (2) is movably connected to one side of the air guide pipe (3), and a detector (4) is movably connected to one end of the air guide pipe (3).

7. The constant temperature and humidity detection device for VOCs emission of building coatings as described in claim 6, characterized in that, A display screen (6) is fixedly installed on one side of the detector (4), and an exhaust pipe (5) is fixedly installed on the vertical surface on which the display screen (6) is installed on the detector (4).

8. A constant temperature and humidity detection device for VOCs emission from building coatings as described in claim 6 or 7, characterized in that, The air pump (10) is connected to the constant temperature and humidity machine (2) via an air guide pipe (3) on one side, and the air guide pipe (3) is extendable.

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