CN107796918B - Automotive interior material VOC detection device - Google Patents
Automotive interior material VOC detection device Download PDFInfo
- Publication number
- CN107796918B CN107796918B CN201710952808.3A CN201710952808A CN107796918B CN 107796918 B CN107796918 B CN 107796918B CN 201710952808 A CN201710952808 A CN 201710952808A CN 107796918 B CN107796918 B CN 107796918B
- Authority
- CN
- China
- Prior art keywords
- pair
- sampling bag
- sampling
- interior material
- automotive interior
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000463 material Substances 0.000 title claims abstract description 53
- 238000001514 detection method Methods 0.000 title claims abstract description 51
- 238000005070 sampling Methods 0.000 claims abstract description 120
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 61
- 230000032683 aging Effects 0.000 claims abstract description 37
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 29
- 238000005086 pumping Methods 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 12
- 238000004891 communication Methods 0.000 claims description 6
- HORQAOAYAYGIBM-UHFFFAOYSA-N 2,4-dinitrophenylhydrazine Chemical compound NNC1=CC=C([N+]([O-])=O)C=C1[N+]([O-])=O HORQAOAYAYGIBM-UHFFFAOYSA-N 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000035515 penetration Effects 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 6
- 238000009792 diffusion process Methods 0.000 abstract description 3
- 239000012855 volatile organic compound Substances 0.000 description 49
- 239000007789 gas Substances 0.000 description 12
- 238000007789 sealing Methods 0.000 description 5
- 229920002620 polyvinyl fluoride Polymers 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 239000004809 Teflon Substances 0.000 description 3
- 229920006362 Teflon® Polymers 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 229910001873 dinitrogen Inorganic materials 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- HGINCPLSRVDWNT-UHFFFAOYSA-N Acrolein Chemical compound C=CC=O HGINCPLSRVDWNT-UHFFFAOYSA-N 0.000 description 2
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 206010019233 Headaches Diseases 0.000 description 1
- 206010028813 Nausea Diseases 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- IKHGUXGNUITLKF-XPULMUKRSA-N acetaldehyde Chemical compound [14CH]([14CH3])=O IKHGUXGNUITLKF-XPULMUKRSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 210000000133 brain stem Anatomy 0.000 description 1
- 230000036461 convulsion Effects 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 230000008693 nausea Effects 0.000 description 1
- 210000000653 nervous system Anatomy 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
-
- G01N33/0083—
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N2001/2244—Exhaled gas, e.g. alcohol detecting
Abstract
The invention discloses a VOC detection device for an automotive interior material, which comprises: an aging chamber; the opening faces to the supporting groove arranged on the top surface of the aging cabin; the sampling bag is wrapped outside the supporting groove, and the pair of first rod bodies and the pair of second rod bodies respectively penetrate through one side wall of the sampling bag and extend outwards to be arranged on the lifting assembly; one end of the cylindrical sample inlet is connected to one side wall of the sampling bag; the pair of first elastic frames are respectively arranged at the joint of a bottom surface and a top surface with one side surface; two ends of the plurality of connecting rods are respectively hinged on the pair of first elastic frames; the pair of sampling pipes, the nitrogen filling pipe and the vacuum pumping pipe are respectively communicated to the cavities of the pair of first rod bodies and the pair of second rod bodies. The sampling bag arranged in the aging cabin in a suspending way can ensure that the automotive interior material is uniformly heated in the VOC detection process, the VOC diffusion effect is closer to the real situation, and the VOC detection result is more accurate.
Description
Technical Field
The invention relates to the technical field of VOC detection, in particular to a VOC detection device for an automotive interior material.
Background
Volatile organic compounds emitted by automobiles are harmful to people, and when the VOC in the automobiles reaches a certain concentration, people feel headache, nausea and the like in a short time, and can twitch in severe cases and hurt the liver, kidney, brain and nervous system of people. VOCs are acronyms for volatile organic compounds (volatile organic compounds). VOCs in the general sense are commanding organic matters; but the definition in the environmental protection sense refers to an active class of volatile organic compounds, namely, volatile organic compounds which can cause harm.
The conventional bag-type VOC detection device is actually a VOC sampling bag for VOC detection, and the VOC sampling bag is made of polyvinyl fluoride (PVF) film. The material has excellent chemical resistance, solubility resistance, pollution resistance, strong acid and strong alkali resistance. Meanwhile, a high-temperature-resistant SNS sealing strip and a Teflon material valve are adopted, automobile interior materials or parts are placed into a sampling bag, the sampling bag is placed into an environmental aging cabin, and VOC released by the automobile interior materials or the parts is collected through heating aging. In the process, the sampling bag is often directly placed on a metal frame body of the environmental aging cabin, and the automotive interior material or part presses part of the sampling bag, so that the automotive interior material or part is heated unevenly, and part of VOC is prevented from being released, and the detection result is inaccurate; in addition, the VOC sampling bag used in conventional bag-type VOC detection is generally a rectangular polyvinyl fluoride (PVF) film plastic bag, when the inflation is insufficient, the shape is not easy to control, and a part of the bag body above the automotive interior material or part even covers the surface of the automotive interior material or part, which also causes uneven heating of the automotive interior material or part and blocking of partial VOC release, resulting in inaccurate detection result; when automotive interior materials or parts provided with glue or adhesive tapes are placed in the VOC sampling bag, the glue or the adhesive tapes are easy to adhere to the VOC sampling bag, so that secondary use of the VOC sampling bag is influenced, and unnecessary economic loss of enterprises is caused.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and to provide at least the advantages described later.
The invention also aims to provide the device for detecting the VOC of the automotive interior material, wherein the sampling bag arranged in the aging cabin in a suspending way can ensure that the automotive interior material is uniformly heated in the VOC detection process, the VOC diffusion effect is closer to the real situation, and the VOC detection result is more accurate; in the detection process, the sampling bag is not polluted, the sampling bag can be repeatedly used for many times, and the detection cost is effectively reduced.
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided an automotive interior material VOC detection apparatus including:
the aging cabin is of a closed cabin structure and comprises a heating device;
the bracket comprises a supporting groove which is an arc-shaped metal net, the opening of the supporting groove is arranged towards the top surface of the ageing cabin, two ends of the supporting groove are arranged in the ageing cabin in a lifting mode through a lifting assembly, and the two ends of the supporting groove are connected to the lifting assemblies on the left side and the right side through a pair of first rod bodies and a pair of second rod bodies respectively; the hemispherical bulges are uniformly distributed on the upper end surface of the support groove;
the sampling bag is provided with a top surface, a bottom surface and a side wall, the sampling bag is wrapped outside the supporting groove, the radian of the top surface and the radian of the bottom surface of the sampling bag are matched with that of the supporting groove, the pair of first rod bodies and the pair of second rod bodies respectively penetrate through one side wall of the sampling bag and extend outwards, and the penetrating points of the pair of first rod bodies and the pair of second rod bodies and one side wall of the sampling bag are sealed; one end of the cylindrical sample inlet is connected to the side wall of the sampling bag, and the other end of the cylindrical sample inlet extends towards the opening of the aging cabin; a pair of first elastic frames respectively arranged at the outer sides of the joint of the bottom surface and the top surface with the side surface; the two ends of each of the multiple connecting rods are respectively hinged to the pair of first elastic frames, the multiple third rod bodies of any one of the multiple connecting rods are hinged end to end, and the extension length of any one of the multiple connecting rods is adapted to the height of one side wall;
one end of each sampling tube is communicated with the inner cavities of the first rod bodies respectively, and the communication position is positioned outside the sampling bag; the other ends of the sampling tubes extend out of the aging cabin; the pair of air inlets are respectively formed in the side walls of the pair of first rod bodies and communicated with the inner cavities of the pair of first rod bodies, and the pair of air inlets are positioned on the inner side of the sampling bag; a filter disposed in the pair of sampling tubes
One end of the nitrogen filling pipe is communicated with the inner cavity of any one second rod body, and the communicated part is positioned outside the sampling bag; the other end of the nitrogen filling pipe extends out of the aging cabin; the first outlet is formed in the side wall of any one second rod body and communicated with the inner cavity of any one second rod body, and the first outlet is positioned on the inner side of the sampling bag;
one end of the vacuumizing pipe is communicated with the inner cavity of the other second rod body, and the communication position is positioned outside the sampling bag; the other end of the vacuumizing pipe extends out of the aging cabin; the second outlet is formed in the side wall of the other second rod body and communicated with the inner cavity of the other second rod body, and the second outlet is positioned on the inner side of the sampling bag;
the pair of sampling pipes, the nitrogen charging pipe and the vacuum pumping pipe are respectively provided with an electromagnetic valve, and the pair of sampling pipes, the nitrogen charging pipe and the vacuum pumping pipe are elastic hoses.
Preferably, the cross-section of the sampling bag is circular, elliptical or polygonal.
Preferably, the volume of the sampling bag is 20L-2000L.
Preferably, the other ends of the pair of sampling pipes are respectively communicated to a TENAX-TA collecting pipe and a TVOC DNPH collecting pipe; the other end of the nitrogen filling pipe is communicated to an external nitrogen source; the other end of the vacuumizing pipe is communicated to a vacuum pump.
Preferably, the method further comprises the following steps: the humidifier is communicated to the nitrogen filling pipe through a humidifying pipe; a humidity sensor disposed on the support groove; a controller electrically connected to the temperature sensor and the humidifier, respectively.
Preferably, the method further comprises the following steps: and the at least one second elastic frame is sleeved on the outer side of the side wall and is not connected with the plurality of connecting rods.
Preferably, the temperature of the heating means is in the range of 10-100 ℃.
Preferably, the shortest distance between the penetrating point and the top surface is L, the shortest distance between the penetrating point and the bottom surface is D, L: D is more than or equal to 2:1, and the length of any third rod body is D.
Preferably, the length of the cylindrical sample inlet is A, the height of the sampling bag is B, and A: B is less than or equal to 3: 2.
Preferably, the lifting assembly is at least one pair of multi-stage telescopic rods, and the lower ends of the at least one pair of multi-stage telescopic rods are fixed on the base with the wheels.
The invention at least comprises the following beneficial effects:
the aging cabin has a heating function, and is also provided with a heat insulation layer, an air filter and the like, so that clean air is filled in the aging cabin; the supporting groove is used for bearing a sample to detect, so that the bottom of the sample cannot be pressed on the inner side wall of the sampling bag, the heating uniformity of the sample is influenced, and part of VOC is smoothly emitted outwards; the plurality of hemispherical bulges can support the automotive interior material, so that the contact area between the automotive interior material and the metal mesh is reduced as much as possible, enough gaps are reserved, the VOC on the surface of the sample is smoothly emitted outwards, and the accuracy of a detection result is ensured; in practical use, the plurality of spherical protrusions can be arranged into a plurality of metal hemispheroids or hemispheroids, polytetrafluoroethylene covers the upper surface of the metal net and the surfaces of the plurality of metal hemispheroids or hemispheroids, and the upper surface of the metal net and the surfaces of the plurality of metal hemispheroids or hemispheroids are effectively prevented from directly conducting heat to a sample to influence a detection result; setting the distance between two adjacent hemispherical bulges to be 1-20cm different according to actual detection requirements; to accommodate a variety of detection needs.
The cylindrical sample inlet of the sampling bag is convenient for sample introduction and sealing treatment, the sampling bag is ensured to be sealed without air leakage, the length of the cylindrical sample inlet can meet the requirement of repeated utilization of the sampling bag, and the enterprise detection cost is effectively reduced; in practical use, the gas volume of the sampling bag can be expanded through the cylindrical sample inlet, and the detection requirements of various samples are met. A pair of first body of rod and a pair of second body of rod run through respectively the run-through point of a lateral wall of sampling bag, the first body of rod of part or the part second body of rod of the valve intercommunication both sides of accessible teflon material, a pair of first body of rod and a pair of second body of rod not only play the effect of fixed stay groove, still as gas transmission pipeline input or output gas, compact structure, high durability and convenient use, the nitrogen tube and the air inlet of accessible configuration fill nitrogen gas in to the sampling bag, perhaps carry out the VOC content in the gas in the sample detection sampling bag respectively through a pair of sampling tube, perhaps carry out the evacuation operation through the evacuation pipe.
In general, the method can ensure that the automotive interior material is uniformly heated in the VOC detection process, and the VOC diffusion effect is closer to the real situation, so that the VOC detection result is more accurate.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic perspective view of an apparatus for detecting VOC as an interior material of an automobile according to the present invention;
FIG. 2 is a schematic cross-sectional view of a sampling bag according to an embodiment of the present invention;
fig. 3 is a schematic cross-sectional view of a sampling bag according to another embodiment of the present invention.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1 and 2, the present invention provides an automotive interior material VOC detection device, including: the aging chamber 10 is of a closed chamber structure and comprises a heating device; the bracket comprises a support groove 20 which is an arc-shaped metal net, the opening of the support groove is arranged towards the top surface of the aging chamber, two ends of the support groove are arranged in the aging chamber in a lifting manner through a lifting component, and two ends of the support groove are respectively connected to the lifting components on the left side and the right side through a pair of first rod bodies and a pair of second rod bodies; a plurality of hemispherical protrusions 201 uniformly dispersed on the upper end surface of the support groove; the sampling bag 30 is provided with a top surface, a bottom surface and a side wall, the sampling bag is wrapped outside the supporting groove, the radian of the top surface and the radian of the bottom surface of the sampling bag are matched with that of the supporting groove, the pair of first rod bodies 301 and the pair of second rod bodies 302 respectively penetrate through one side wall of the sampling bag and extend outwards, and the penetrating points of the pair of first rod bodies and the pair of second rod bodies and one side wall of the sampling bag are arranged in a sealing manner; one end of the cylindrical sample inlet 303 is connected to the side wall of the sampling bag, and the other end of the cylindrical sample inlet extends to the opening of the aging cabin; a pair of first elastic frames 304 respectively disposed outside the junction of the one bottom surface and the one top surface with the one side surface; a plurality of multi-link rods 305, both ends of which are respectively hinged to the pair of first elastic frames, and a plurality of third rod bodies of any multi-link rod are hinged end to end, and the extension length of any multi-link rod is adapted to the height of the side wall; a pair of sampling tubes 40, one end of which is respectively communicated with the inner cavities of the pair of first rod bodies, and the communication position is positioned outside the sampling bag; the other ends of the sampling tubes extend out of the aging cabin; the pair of air inlets are respectively formed in the side walls of the pair of first rod bodies and communicated with the inner cavities of the pair of first rod bodies, and the pair of air inlets are positioned on the inner side of the sampling bag;
a nitrogen filling tube 50, one end of which is communicated with the inner cavity of any second rod body, and the communication position is positioned outside the sampling bag; the other end of the nitrogen filling pipe extends out of the aging cabin; the first outlet is formed in the side wall of any one second rod body and communicated with the inner cavity of any one second rod body, and the first outlet is positioned on the inner side of the sampling bag;
an evacuation tube 60, one end of which is connected to the inner cavity of the other second rod, and the connection position is located outside the sampling bag; the other end of the vacuumizing pipe extends out of the aging cabin; the second outlet is formed in the side wall of the other second rod body and communicated with the inner cavity of the other second rod body, and the second outlet is positioned on the inner side of the sampling bag;
the pair of sampling pipes, the nitrogen charging pipe and the vacuum pumping pipe are respectively provided with an electromagnetic valve 70, and the pair of sampling pipes, the nitrogen charging pipe and the vacuum pumping pipe are elastic hoses.
The aging cabin has a heating function, and is also provided with a heat insulation layer, an air filter and the like, so that clean air is filled in the aging cabin; the supporting groove is used for bearing a sample to detect, so that the bottom of the sample cannot be pressed on the inner side wall of the sampling bag, the heating uniformity of the sample is influenced, and part of VOC is smoothly emitted outwards; the plurality of hemispherical protrusions can support the automobile interior material 100, the contact area between the automobile interior material and the metal mesh is reduced as much as possible, enough gaps are reserved, VOC on the surface of a sample can be smoothly emitted outwards, and the accuracy of a detection result is guaranteed; in practical use, the plurality of spherical protrusions can be arranged into a plurality of metal hemispheroids or hemispheroids, and polytetrafluoroethylene films are covered on the upper surface of the metal net and the surfaces of the plurality of metal hemispheroids or hemispheroids, so that the upper surface of the metal net, the plurality of metal hemispheroids or hemispheroids are effectively prevented from directly conducting heat to a sample to influence a detection result; setting the distance between two adjacent hemispherical bulges to be 1-20cm different according to actual detection requirements; so as to meet the detection requirements of various automobile interior materials.
The cylindrical sample inlet of the sampling bag is convenient for sample introduction and sealing treatment, the sampling bag is ensured to be sealed without air leakage, the length of the cylindrical sample inlet can meet the requirement of repeated utilization of the sampling bag, and the enterprise detection cost is effectively reduced; in practical use, the gas volume of the sampling bag can be expanded through the cylindrical sample inlet, and the detection requirements of various samples are met. A pair of first body of rod and a pair of second body of rod run through respectively the run-through point of a lateral wall of sampling bag, the first body of rod of part or the part second body of rod of the valve intercommunication both sides of accessible teflon material, a pair of first body of rod and a pair of second body of rod not only play the effect of fixed stay groove, still as gas transmission pipeline input or output gas, compact structure, high durability and convenient use, the nitrogen tube and the air inlet of accessible configuration fill nitrogen gas in to the sampling bag, perhaps carry out the VOC content in the gas in the sample detection sampling bag respectively through a pair of sampling tube, perhaps carry out the evacuation operation through the evacuation pipe.
The process of detecting the sample by the device comprises the following steps:
1) selecting a proper sampling bag according to the size of the automotive interior material; 2) placing the sample in a supporting groove in a sampling bag, and sealing the sampling bag;
3) vacuumizing the sampling bag through a vacuum tube;
4) filling 30-50% nitrogen into the sampling bag, and pumping out the gas;
5) then accurately adding 30-50% of nitrogen into the sampling bag, simulating air humidity to perform humidification treatment, and recording the amount of the filled nitrogen;
6) taking another blank sampling bag, and repeating the steps 3) -5) without placing automobile interior materials as detection contrast;
7) suspending two sampling bags simultaneously in the air and supporting the sampling bags in the same aging cabin to culture for 2h +/-5 min at 65 ℃;
8) after the cultivation is finished, the sampling bag is shaken to enable gas in the sampling bag to be uniformly mixed, and then the gas is collected through the pair of sampling tubes and subjected to VOC detection.
As shown in fig. 1 and 2, in the device for detecting VOC as an automotive interior material, the cross section of the sampling bag is circular, oval or polygonal. The sampling bags with different shapes are used according to the specific shape of the automobile interior material, and the detection requirements of various automobile interior materials are met.
As shown in fig. 1 and 2, in the automotive interior material VOC detection device, the volume of the sampling bag is 20L to 2000L.
As shown in FIG. 1, in the VOC detection device for automobile interior materials, the other ends of a pair of sampling pipes are respectively communicated with a TENAX-TA collection pipe 401 and a TVOC DNPH collection pipe 402; the other end of the nitrogen filling pipe is communicated to an external nitrogen source 501; the other end of the evacuation tube is connected to a vacuum pump 601. The TENAX-TA collection tube is used for detecting benzene, styrene, ethylbenzene, toluene or xylene; the TVOC DNPH trap is used for detecting formaldehyde, acetaldehyde, acrolein or acetone. To facilitate pumping of gases, the rear ends of the TENAX-TA and TVOC DNPH traps are typically equipped with pumps 403.
As shown in fig. 1, the device for detecting VOC as an interior material of an automobile further includes: a humidifier 80 communicated to the nitrogen charging pipe through a humidifying pipe; a humidity sensor disposed on the support groove; a controller electrically connected to the temperature sensor and the humidifier, respectively. Can be through the artificial nitrogen gas humidity that sets for in the sampling bag of controller, better simulation air circumstance guarantees that the testing result is more close to the truth.
As shown in fig. 3, the device for detecting VOC as an interior material of an automobile further includes: at least one second elastic frame 306, which is sleeved outside the side wall and is not connected with the plurality of connecting rods. The at least one second elastic frame is used for supporting one side wall of the sampling bag, so that the sampling bag keeps a certain shape and cannot be folded into the sampling bag in a transitional mode, and the detection effect is not influenced.
In the VOC detection device for the automotive interior material, the temperature range of the heating device is 10-100 ℃.
As shown in fig. 1 and 2, in the automotive interior material VOC detection device, the shortest distance between the penetration point and the top surface is L, the shortest distance between the penetration point and the bottom surface is D, L: D is not less than 2:1, and the length of any third rod body is D. After the sampling belt is filled with nitrogen, as the L: D is more than or equal to 2:1, the nitrogen can jack up a top surface upwards to keep a certain distance with the automotive interior material, and a bottom surface can not contact with the lower bottom surface of the supporting groove, so that the sample (the automotive interior material) is uniformly heated.
In the VOC detection device for the automotive interior material, the length of the cylindrical sample inlet is A, the height of the sampling bag is B, and A: B is less than or equal to 3: 2.
As shown in fig. 1, in the device for detecting VOC as an automotive interior material, the lifting assembly 90 is at least one pair of multi-stage telescopic rods 901, and the lower ends of the at least one pair of multi-stage telescopic rods are fixed on a base 903 with a wheel body 902. The aging cabin can be conveniently taken out of the related sampling bag assembly through the lifting assembly, the telescopic height of at least one pair of multi-stage telescopic rods is adjusted according to the height and the size of the sampling bag, the requirement that the relative aging cabin of the sampling bag is always suspended is met, and the relative aging cabin is basically located at the center of the aging cabin.
While embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides an automotive interior material VOC detection device which characterized in that includes:
the aging cabin is of a closed cabin structure and comprises a heating device;
the bracket comprises a supporting groove which is an arc-shaped metal net, the opening of the supporting groove is arranged towards the top surface of the ageing cabin, two ends of the supporting groove are arranged in the ageing cabin in a lifting mode through a lifting assembly, and the two ends of the supporting groove are connected to the lifting assemblies on the left side and the right side through a pair of first rod bodies and a pair of second rod bodies respectively; the hemispherical bulges are uniformly distributed on the upper end surface of the support groove;
the sampling bag is provided with a top surface, a bottom surface and a side wall, the sampling bag is wrapped outside the supporting groove, the radian of the top surface and the radian of the bottom surface of the sampling bag are matched with that of the supporting groove, the pair of first rod bodies and the pair of second rod bodies respectively penetrate through one side wall of the sampling bag and extend outwards, and the penetrating points of the pair of first rod bodies and the pair of second rod bodies and one side wall of the sampling bag are sealed; one end of the cylindrical sample inlet is connected to the side wall of the sampling bag, and the other end of the cylindrical sample inlet extends towards the opening of the aging cabin; a pair of first elastic frames respectively arranged at the outer sides of the joint of the bottom surface and the top surface with the side surface; the two ends of each of the multiple connecting rods are respectively hinged to the pair of first elastic frames, the multiple third rod bodies of any one of the multiple connecting rods are hinged end to end, and the extension length of any one of the multiple connecting rods is adapted to the height of one side wall;
one end of each sampling tube is communicated with the inner cavities of the first rod bodies respectively, and the communication position is positioned outside the sampling bag; the other ends of the sampling tubes extend out of the aging cabin; the pair of air inlets are respectively formed in the side walls of the pair of first rod bodies and communicated with the inner cavities of the pair of first rod bodies, and the pair of air inlets are positioned on the inner side of the sampling bag;
one end of the nitrogen filling pipe is communicated with the inner cavity of any one second rod body, and the communicated part is positioned outside the sampling bag; the other end of the nitrogen filling pipe extends out of the aging cabin; the first outlet is formed in the side wall of any one second rod body and communicated with the inner cavity of any one second rod body, and the first outlet is positioned on the inner side of the sampling bag;
one end of the vacuumizing pipe is communicated with the inner cavity of the other second rod body, and the communication position is positioned outside the sampling bag; the other end of the vacuumizing pipe extends out of the aging cabin; the second outlet is formed in the side wall of the other second rod body and communicated with the inner cavity of the other second rod body, and the second outlet is positioned on the inner side of the sampling bag;
the pair of sampling pipes, the nitrogen charging pipe and the vacuum pumping pipe are respectively provided with an electromagnetic valve, and the pair of sampling pipes, the nitrogen charging pipe and the vacuum pumping pipe are elastic hoses.
2. The automotive interior material VOC detection device of claim 1, wherein said sampling bag has a cross-section that is circular, oval or polygonal.
3. The automotive interior material VOC detection device of claim 1, wherein said sampling bag has a volume of 20L to 2000L.
4. The automotive interior material VOC detecting device as claimed in claim 1, wherein the other ends of a pair of sampling tubes are connected to a TENAX-TA trap and a TVOC DNPH trap, respectively; the other end of the nitrogen filling pipe is communicated to an external nitrogen source; the other end of the vacuumizing pipe is communicated to a vacuum pump.
5. The automotive interior material VOC detection device of claim 1, further comprising:
the humidifier is communicated to the nitrogen filling pipe through a humidifying pipe;
a humidity sensor disposed on the support groove;
and the controller is electrically connected with the temperature sensor and the humidifier respectively.
6. The automotive interior material VOC detection device of claim 1, further comprising:
and the at least one second elastic frame is sleeved on the outer side of the side wall and is not connected with the plurality of connecting rods.
7. The automotive interior material VOC detection device of claim 1, wherein the heating device has a temperature in the range of 10-100 ℃.
8. The automotive interior material VOC detection device of claim 1, wherein the shortest distance between the penetration point and the top surface is L, the shortest distance between the penetration point and the bottom surface is D, L: D is not less than 2:1, and the length of any third rod body is D.
9. The automotive interior material VOC detection device of claim 1, wherein the length of the cylindrical sample inlet is A, the height of the sampling bag is B, and A: B is less than or equal to 3: 2.
10. An apparatus for detecting VOC in an automotive interior material as claimed in claim 1, wherein said lifting means is at least one pair of multi-stage telescopic rods, and the lower ends of at least one pair of multi-stage telescopic rods are fixed to a base with wheels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710952808.3A CN107796918B (en) | 2017-10-13 | 2017-10-13 | Automotive interior material VOC detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710952808.3A CN107796918B (en) | 2017-10-13 | 2017-10-13 | Automotive interior material VOC detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107796918A CN107796918A (en) | 2018-03-13 |
| CN107796918B true CN107796918B (en) | 2020-04-10 |
Family
ID=61533281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710952808.3A Active CN107796918B (en) | 2017-10-13 | 2017-10-13 | Automotive interior material VOC detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107796918B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406231A (en) * | 2018-12-18 | 2019-03-01 | 广州广电计量检测股份有限公司 | It is a kind of mist product in VOC measurement pretreating device and pre-treating method |
| CN109374362B (en) * | 2018-12-19 | 2021-03-19 | 杭州人安检测科技有限公司 | Detection equipment and detection method for indoor volatile pollutants |
| CN110261516A (en) * | 2019-07-30 | 2019-09-20 | 安徽江淮汽车集团股份有限公司 | A kind of vehicle glass sealant volatile organic matter sample preparation device and detection method |
| CN117761262B (en) * | 2024-02-22 | 2024-04-30 | 暨南大学 | Box-type escape source volatile component controllable high-precision characterization system |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04142440A (en) * | 1990-10-03 | 1992-05-15 | Toshiba Corp | Gas sample collecting device and injector type vacuum vial bottle |
| CN202506265U (en) * | 2012-03-14 | 2012-10-31 | 沃晓枫 | Air storage bag support of pulse single bag type dust collector |
| CN103439150B (en) * | 2013-06-17 | 2016-03-02 | 莆田出入境检验检疫局综合技术服务中心 | A kind of footwear VOC volatilization sampling apparatus and method |
| CN104181015B (en) * | 2014-08-22 | 2016-06-29 | 上海延锋江森座椅有限公司 | A kind of novel sack method adopts system automatically |
| CN205210051U (en) * | 2015-12-10 | 2016-05-04 | 上海福轩环保科技有限公司 | Sack method automotive interior spare VOC test chamber |
| CN206411087U (en) * | 2016-12-30 | 2017-08-15 | 广州汽车集团股份有限公司 | Nitrogen continuous feeding device and auto parts and components VOC test devices |
| CN106814163B (en) * | 2017-01-22 | 2020-01-10 | 沈阳紫微恒检测设备有限公司 | Device and method for testing formaldehyde and VOC (volatile organic compounds) in furniture and decoration materials by bag method |
-
2017
- 2017-10-13 CN CN201710952808.3A patent/CN107796918B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107796918A (en) | 2018-03-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107796918B (en) | Automotive interior material VOC detection device | |
| CN106093311B (en) | Smell, VOC and floating harmful substance test device | |
| WO2015176548A1 (en) | Integrated processing mechanism for uniformly-mixing and filtering sample | |
| CN107631913B (en) | High-altitude gradient type atmosphere sampler based on unmanned aerial vehicle | |
| CN208544829U (en) | A kind of automatic plate feeding sucker | |
| CN211235150U (en) | Formaldehyde detection environmental protection equipment | |
| CN102620955A (en) | Nondestructive testing sampling device and sampling method for environmental performance of furniture and decorative material | |
| SE8204853D0 (en) | WAITING ASSEMBLY FOR A SEALED BODY FLUID DRAINAGE DEVICE | |
| CN204758359U (en) | Portable vacuum air pocket sample thief equipment | |
| CN105833585A (en) | Solid-liquid separation vacuum suction filtration device and suction filtration method using same | |
| CN209757529U (en) | Auxiliary device for air monitoring rotor unmanned aerial vehicle | |
| CN207516338U (en) | For the chamber air channel structure of vehicle organic volatile analyte detection | |
| CN111644356B (en) | Automobile fender gluing device | |
| CN206701029U (en) | A kind of binary channels suitable for building board removes formaldehyde equipment | |
| CN213274731U (en) | Device for detecting sealing performance of quartz tube | |
| CN212328377U (en) | Sewage detection that leakproofness is good holds box | |
| CN204389473U (en) | A kind of experimental provision of simulating organic exhaust gas detection and process in workshop condition | |
| CN109882744B (en) | Quick accurate leakproofness detection device who need not to device pressurization | |
| CN209537476U (en) | Micro biological Tests liquid-transfering device | |
| CN207301001U (en) | A kind of formaldehyde test device | |
| CN212722784U (en) | Multi-cabin VOC detection environment cabin | |
| CN217359822U (en) | Wood-based plate and furniture detect with climatic chamber balancing unit | |
| CN207379781U (en) | A kind of gas release and collecting device | |
| CN214683421U (en) | Deodorizing device based on continuous flow analyzer | |
| CN206345847U (en) | A kind of multifunctional microbial detection means |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |