A rapid detection method and device for organic volatiles in panel furniture
By fixing the portable sampling chamber and vacuum suction cup on the furniture surface, combined with clean gas purification and rapid analysis device, the destructive and long cycle problems of furniture detection in the prior art are solved, and fast and accurate detection of organic compounds is achieved, and detection is improved. Efficiency and portability.
Patent Information
- Application Number
- CN201810986714.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2018-08-28
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2038-08-28
AI Technical Summary
The organic volatile detection methods in existing furniture are destructive, long cycles and low efficiency, and cannot easily detect panel furniture, affecting consumer use and testing efficiency.
The portable sampling chamber and vacuum suction cup are used to fix it on the surface of the furniture to be tested. The organic compound release amount is quickly detected through the clean gas purification and analysis device, and the FID hydrocarbon detector or VOC rapid detector is used for analysis.
It realizes non-destructive and fast detection of organic compounds, reduces detection costs and working intensity, improves detection efficiency and portability, and can obtain accurate data in a short time.
Smart Images
Figure CN109060968B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a method for quickly detecting organic volatiles in board-type furniture and a detection device using the method, belonging to the technical field of detecting organic volatiles in furniture. Background Art
[0002] With the improvement of environmental awareness, the harmfulness of volatile organic compounds in furniture has been paid more and more attention, and the demand for related testing has also begun to increase. At present, the detection of volatile organic compounds in existing furniture needs to be tested in accordance with the standard GB18584. According to the requirements of the standard, the furniture needs to be sampled and tested according to the methods required by the standard. The sampling method is mostly destructive sampling, which requires cutting a certain area on the furniture to be tested. For example, panel furniture needs to cut a 500mmX500mm board on the test board. The board cannot be restored after sampling, and the furniture cannot continue to be used normally, which brings a lot of inconvenience to consumers; secondly, the existing detection method needs to be carried out with the help of a one-cubic-meter environmental chamber, and its detection cycle is long. It may take up to 28 days to test a sample in as short as one week. The method is complicated, the detection cycle is long, and the efficiency is low. When consumers make detection and judgment, they need to send the test pieces to the testing agency, but many furniture are not convenient to move, so they cannot be tested and judged. Summary of the invention
[0003] In view of the above-mentioned defects existing in the prior art, the present invention provides a rapid detection method for detecting volatile organic compounds in panel furniture conveniently and quickly.
[0004] The present invention is realized by the following technical scheme: a method for rapid detection of organic volatiles in panel furniture, characterized in that it comprises the following steps: (1) a sampling cabin for sampling is sealed and fixed on the sampling surface of the furniture to be tested by a vacuum suction cup; (2) clean gas is filled into the sampling cabin at a designed flow rate to purify the environment in the sampling cabin; (3) air in the sampling cabin is extracted at a certain flow rate, and the extracted air is tested by an analysis device to obtain a test result.
[0005] The present invention adopts a portable sampling cabin and uses a vacuum suction cup to fix the sampling cabin on the sampling surface of the furniture to be tested, so that a relatively sealed environment is formed in the sampling cabin to ensure the accuracy of the test results, and damage to the furniture to be tested is avoided without affecting the use of the furniture; the air extracted from the sampling cabin can be analyzed and tested by the analysis device to obtain the release amount of organic compounds in the sampling cabin.
[0006] Furthermore, the analysis device is a FID hydrocarbon detector or a VOC rapid detector or uses a standard VOC collection device TENAX-ta adsorption tube for analysis and processing. When the analysis device is a FID hydrocarbon detector or a VOC rapid detector, the amount of organic compound released in the sampling chamber can be measured. When a TENAX-ta adsorption tube is used, the analysis can be performed by a gas chromatography-mass spectrometry instrument.
[0007] The present invention also provides a portable rapid detection device for organic volatiles in panel furniture using the above-mentioned detection method, and the technical solution adopted is: it includes a portable sampling cabin, a control host, a sampling and analysis device, one end of the sampling cabin has an opening, a sealing strip is provided at the opening, the sampling cabin is provided with a sampling port, a vacuum suction cup device is provided on the outside of the sampling cabin 1, the vacuum suction cup device includes at least two vacuum suction cups, a pressure plate, and an adjusting hand wheel, the vacuum suction cup is arranged on the periphery of the sampling cabin, the pressure plate is arranged on the outside of the opposite side of the opening end of the sampling cabin and the end of the pressure plate is connected to the vacuum suction cup, the adjusting hand wheel is threadedly connected to the middle part of the pressure plate through a threaded rod, a vacuum pump and a clean air source generating device are provided in the control host, the vacuum pump is connected to the vacuum suction cup through a vacuum tube, the clean air source generating device is connected to the sampling cabin through an inflation tube, and the sampling and analysis device is connected to the sampling port of the sampling cabin through a sampling tube.
[0008] When the present invention is used, the sampling cabin can be adsorbed on the surface of the furniture to be tested by the vacuum suction cup using the principle of vacuum adsorption, and the sampling cabin can be quickly installed on the plane, vertical surface and inclined surface of the panel furniture; the sealing strip of the sampling cabin can be compressed by adjusting the hand wheel, so that the sampling cabin and the surface of the board form a closed space, providing a standard environment within a certain range; the vacuum pump in the control host is used to draw vacuum to the vacuum suction cup so that it can be adsorbed on the surface of the board; the clean air source generating device in the control host is used to fill the sampling cabin with clean air to purify the environment in the sampling cabin; the sampling and analysis device can extract the air in the sampling cabin, and quickly analyze and determine, so as to obtain the release amount of organic compounds in the sampling cabin in a very short time.
[0009] Furthermore, the analysis device in the sampling and analysis device is a FID hydrocarbon detector or a VOC rapid detector or uses a standard VOC collection device TENAX-ta adsorption tube for analysis and processing.
[0010] The present invention also provides a method for quickly detecting organic volatiles in panel furniture using the above-mentioned detection device, and the technical scheme adopted by the method is: comprising the following steps: (1) placing a sampling chamber on the surface of the panel furniture to be tested, and making the open end of the sampling chamber contact with the surface of the panel furniture to be tested; (2) turning on the control host, starting the vacuum pump in the control host, and evacuating the vacuum suction cup so that it is adsorbed on the surface of the furniture to be tested; (3) adjusting the adjustment hand wheel to press the sampling chamber against the surface of the furniture to be tested, so that a relatively sealed environment is formed in the sampling chamber; (4) filling the sampling chamber with clean air through the clean air source generating device in the control host to purify the environment in the sampling chamber; (5) turning on the sampling and analyzing device, extracting air in the sampling chamber at a certain flow rate, and analyzing and detecting the extracted air to obtain the detection result.
[0011] The beneficial effects of the present invention are as follows: the sampling cabin in the present invention can be quickly placed on the surface of the furniture to be tested through the vacuum suction cup device, and can provide a standard environment within a certain range. It is small in size and has very high portability. The testing unit can carry the testing device for on-site testing or on-site testing, which can effectively reduce the workload of experimental operators and reduce testing costs; when the testing device of the present invention is used for testing, there is no need to destructively prepare samples during the testing process, which reduces the sampling process and improves the testing efficiency; the present invention utilizes the principle of vacuum adsorption to adsorb the sampling cabin on the vertical surface, inclined surface and flat surface of the plate, and the installation position is not restricted. The installation is convenient, firm and has good sealing. The present invention can detect the release of organic compounds in a relatively short time, the equipment occupies a small area, eliminates the sample preparation link, and improves the testing efficiency; by connecting to a rapid gas analyzer, the test data can be obtained in a very short time, which improves the testing efficiency. The relevant data and standard method detection have a high correlation. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a structural schematic diagram of a portable rapid detection device for organic volatiles in panel furniture in a specific embodiment of the present invention;
[0013] Figure 2 yes Figure 1 The front view of the sampling chamber in FIG.
[0014] Figure 3 yes Figure 1 A schematic diagram of the three-dimensional structure of the sampling cabin;
[0015] In the figure, 1. sampling cabin, 2. vacuum suction cup, 3. adjustment hand wheel, 4. pressure plate, 5. sampling port, 6. sampling tube, 7. touch screen, 8. inflation tube, 9. vacuum tube, 10. control host, 11. sampling and analysis device, 12. sealing strip. DETAILED DESCRIPTION
[0016] The present invention will be further described below by way of non-limiting embodiments and in conjunction with the accompanying drawings:
[0017] A method for rapid detection of volatile organic compounds in panel furniture comprises the following steps: (1) a sampling chamber for sampling is sealed and fixed on a sampling surface of the furniture to be tested by a vacuum suction cup; (2) clean gas is filled into the sampling chamber at a designed flow rate to purify the environment in the sampling chamber; (3) air in the sampling chamber is extracted at a certain flow rate, and the extracted air is tested by an analysis device to obtain a test result.
[0018] As shown in the accompanying drawings, a portable rapid detection device for organic volatiles in panel furniture using the detection method described above includes a portable sampling cabin 1, a control host 10, and a sampling and analysis device 11. The sampling cabin 1 has a certain volume, and one end of the sampling cabin 1 has an opening. The shape of the sampling cabin 1 can be bowl-shaped, cylindrical, or other shapes. A sealing strip 12 is provided at the opening of the sampling cabin 1, and a sampling port 5 is provided on the cabin wall of the sampling cabin 1. A vacuum suction cup device is provided outside the sampling cabin 1, and the vacuum suction cup device includes at least two vacuum suction cups 2, a pressure plate 4, and an adjustment hand wheel 3 with a threaded rod. The number and angle of the vacuum suction cups 2 in this application can be determined according to actual needs, and multiple or different angles of vacuum suction cups can be designed according to the size of the plate. The number of vacuum suction cups 2 shown in this application is two. The vacuum suction cups 2 are arranged on the periphery of the sampling cabin 1. The pressure plate 4 is arranged on the outside of the opposite side of the opening end of the sampling cabin 1, and the end of the pressure plate 4 is connected to the vacuum suction cup 2. A threaded hole is provided in the middle of the pressure plate 4, and the adjusting hand wheel 3 is threadedly connected to the threaded hole on the pressure plate 4 through its threaded rod, and the screw of the adjusting hand wheel 3 can apply a pressing force to the sampling cabin 1. The control host 10 is provided with a vacuum pump and a clean air source generating device, and the vacuum pump is connected to the vacuum suction cup 2 through a vacuum tube 9. The clean air source generating device is connected to the sampling cabin 1 through an inflation tube 8. The clean air source generating device in the present application is a prior art, which can be bottled nitrogen, and nitrogen is introduced in conjunction with a nitrogen pressure reducing valve, or a zero gas generator can be used as a clean air source, such as the PRECISION NITROGEN 1000 nitrogen generator produced by PEAK, as a clean air source. The sampling and analysis device 11 is connected to the sampling port 5 of the sampling cabin 1 through a sampling tube 6. The sampling and analysis device 11 in the present invention is a prior art. Among them, the sampling device can adopt the BX-2400 portable constant temperature and constant flow atmospheric continuous sampler, and the analysis device can be a FID hydrocarbon detector (such as Germany's TESTA 2010T portable total hydrocarbon analyzer) or a VOC rapid detector (such as Haian Anhuan VOCs online detection HQTC-100Z), which can measure the release amount of organic compounds in the sampling chamber 1, or it can be a TENAX-ta adsorption tube, which can be analyzed by a gas chromatography-mass spectrometer (such as Japan's Shimadzu GCMS gas chromatography-mass spectrometer).
[0019] The method for rapid detection of volatile organic compounds in panel furniture using the above-mentioned detection device comprises the following steps: (1) placing the sampling chamber 1 on the surface of the panel furniture to be tested, and making the open end of the sampling chamber 1 contact the surface of the panel furniture to be tested; (2) turning on the control host 10, starting the vacuum pump in the control host 10, and evacuating the vacuum suction cup 2 so that it is adsorbed on the surface of the furniture to be tested. The vacuum suction cup 2 can be adsorbed on the plane, vertical surface or inclined surface of the furniture as required; (3) adjusting the adjustment hand wheel 3 to press the sampling chamber 1 against the surface of the furniture to be tested, so that a relatively sealed environment is formed in the sampling chamber 1; (4) filling the sampling chamber 1 with clean air through the clean air source generating device in the control host 10 to purify the environment in the sampling chamber; (5) turning on the sampling and analyzing device 11 after a period of time, extracting air in the sampling chamber 1 at a certain flow rate, and analyzing and detecting the extracted air to obtain the detection result.
[0020] When the detection device of the present invention is used for detection, the sample preparation step is omitted, and the release amount of organic compounds can be detected in a shorter time, thereby improving the detection efficiency; by connecting to a fast gas analyzer, the detection data can be obtained in a very short time, thereby greatly improving the detection efficiency.
[0021] The other parts of this embodiment are all prior art and will not be described in detail here.
Claims
1. A portable rapid detection device for organic volatiles in panel furniture, characterized by: The invention comprises a portable sampling cabin (1), a control host (10), and a sampling and analysis device (11); one end of the sampling cabin (1) has an opening, and a sealing strip (12) is arranged at the opening; the sampling cabin (1) is provided with a sampling port (5); a vacuum suction cup device is arranged outside the sampling cabin (1); the vacuum suction cup device comprises at least two vacuum suction cups (2), a pressure plate (4), and an adjustment hand wheel (3); the vacuum suction cup (2) is arranged on the periphery of the sampling cabin (1); the pressure plate (4) is arranged on the outside of the opposite side of the opening end of the sampling cabin (1); and the pressure plate (4) is arranged on the outside of the opposite side of the opening end of the sampling cabin (1). The end of the control panel (4) is connected to the vacuum suction cup (2), the adjusting hand wheel (3) is threadedly connected to the middle part of the pressure plate (4) through a threaded rod, a vacuum pump and a clean air source generating device are arranged in the control host (10), the vacuum pump is connected to the vacuum suction cup (2) through a vacuum tube (9), the clean air source generating device is connected to the sampling chamber (1) through an air charging tube (8), and the sampling and analyzing device is connected to the sampling port (5) of the sampling chamber (1) through a sampling tube (6); the sampling chamber is in the shape of a bowl; the vacuum suction cup (2) and the sampling chamber (1) are arranged independently of each other.
2. The portable rapid detection device for volatile organic compounds in panel furniture according to claim 1 is characterized in that: The analysis device in the sampling and analysis device is a FID hydrocarbon detector or a VOC rapid detector or uses a standard VOC collection device TENAX-ta adsorption tube for analysis and processing.
3. A method for rapid detection of volatile organic compounds in panel furniture using the detection device according to any one of claims 1-2, characterized in that: The method comprises the following steps: (1) placing a sampling chamber on the surface of the panel furniture to be tested, and making the open end of the sampling chamber contact with the surface of the panel furniture to be tested; (2) turning on the control host, starting the vacuum pump in the control host, and evacuating the vacuum suction cup so that it is adsorbed on the surface of the furniture to be tested; (3) adjusting the adjustment hand wheel to press the sampling chamber against the surface of the furniture to be tested, so that a relatively sealed environment is formed in the sampling chamber; (4) filling the sampling chamber with clean air through the clean air source generating device in the control host to purify the environment in the sampling chamber; (5) turning on the sampling and analyzing device, extracting air in the sampling chamber at a certain flow rate, and analyzing and detecting the extracted air to obtain the detection result.