CN217111680U - Equipment for collecting volatile organic compounds on surface of product - Google Patents
Equipment for collecting volatile organic compounds on surface of product Download PDFInfo
- Publication number
- CN217111680U CN217111680U CN202220658640.1U CN202220658640U CN217111680U CN 217111680 U CN217111680 U CN 217111680U CN 202220658640 U CN202220658640 U CN 202220658640U CN 217111680 U CN217111680 U CN 217111680U
- Authority
- CN
- China
- Prior art keywords
- volatile organic
- organic compounds
- product
- thermal desorption
- sampling
- 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
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The application relates to the field of VOC detection, especially, relate to a product surface volatile organic compounds collection system, include: the collecting device comprises a box body, wherein a mounting base body is arranged in the box body, and a containing cavity for placing the sampling cover is reserved in a cavity in the box body; the power pump, the heating module and the acquisition module are installed in the installation base body, the control panel used for controlling the power pump and the heating module is arranged on the installation base body, and when the control panel is used for detecting a product in actual needs, the power pump, the heating module and the acquisition module can be conveniently carried to carry out acquisition operation to a corresponding place, and the use is convenient. This application has the effect that improves the efficiency that detects the volatile organic compounds of product.
Description
Technical Field
The application relates to the field of VOC detection, in particular to a system and equipment for collecting volatile organic compounds on the surface of a product.
Background
VOC detection is an important part of environmental quality detection, for example, volatile organic compounds can be continuously volatilized in the use process of furniture, walls, floors and other structures which are frequently contacted in daily life, and in order to ensure that the generated volatile organic compounds meet the standard and reduce adverse effects on human health, the volatile organic compounds on the surface of a product need to be detected.
The existing device for detecting volatile organic compounds comprises a hemispherical sampling cover, wherein the sampling cover is reversely buckled on the surface of a product to be detected, and a closed cavity is formed by the sampling cover and the surface of the product; the sampling cover is also connected with an air extractor for extracting the volatile organic compounds collected in the sampling cover, collecting or directly detecting the extracted gas, and collecting and detecting the volatile organic compounds generated by the product by the convenient realization.
To the above-mentioned correlation technique, the inventor finds that, when the volatile organic compounds generated by the product are collected, the volatile organic compounds generated by natural volatilization of the product are waited to diffuse into the collecting cover, the time required to be collected continuously is longer, and the efficiency of detecting the volatile organic compounds collected by the product is lower.
SUMMERY OF THE UTILITY MODEL
In order to improve the efficiency of the volatile organic compound detection to the product, this application provides a product surface volatile organic compound collection system and equipment.
The application provides a product surface volatile organic compounds collection system adopts following technical scheme:
a system for collecting volatile organic compounds from a surface of a product, comprising:
the sampling cover is covered on the surface of a product to be detected, and a closed sampling cavity is formed by the sampling cover and the surface of the product to be detected;
the air inlet end of the power pump is communicated with the sampling cavity;
one end of the heating module is communicated with the air outlet end of the power pump, and the other end of the heating module is communicated to the sampling cavity and used for maintaining the temperature of the sampled gas at a set temperature;
the displacement module is communicated with the sampling cavity and is used for displacing gas in the sampling cavity into sampling gas;
the collection module is used for collecting volatile organic compounds;
the sampling cavity, the power pump and the heating module form a circulation passage, and the acquisition module is connected with the circulation passage in parallel through the multi-way valve.
Through adopting above-mentioned technical scheme, when collecting the volatile organic compounds that the product produced, set up circulation pipeline and drive gas circulation to heat gas at gas circulation's in-process and make it maintain at the settlement temperature, so, can accelerate the speed that the product precipitated volatile organic compounds, and keep the gaseous stable temperature of circulation all the time, shorten the time that volatile organic compounds precipitated, improve the efficiency of gathering.
Optionally, the collection module is located between the power pump and the heating module.
Through adopting above-mentioned technical scheme, when collecting volatile organic compounds, gaseous directly lets in the collection module after passing through the power pump from the sampling chamber, can shorten the distance between heating module and the sampling chamber, reduces gaseous through the heating module to the temperature variation that appears before the sampling chamber for promote the product surface and separate out volatile organic compounds' effect better.
Optionally, the system further comprises a three-way valve, wherein the three-way valve is communicated with the air outlet end of the power pump and is used for being connected with the volatile organic compound detection equipment.
Through adopting above-mentioned technical scheme, through the intercommunication interface of adjustment three-way valve, directly detect the gas of sampling intracavity through to check out test set directly through the power pump, can be faster, convenient realization detect, improve the convenience that this system used.
Optionally, a flow sensor is arranged on the circulation path, and the flow sensor is connected in series with the acquisition module.
Through adopting above-mentioned technical scheme, be convenient for implement the circulation speed that detects gas among the circulating line, reduce the velocity of flow and cause the problem of damage to collection module at the excessive speed, when the flow speed through power pump adjustment gas, comparatively convenient and audio-visual speed after acquireing the adjustment, it is comparatively convenient to use.
In a second aspect, the application further discloses a device for collecting volatile organic compounds on the surface of a product, which adopts the following technical scheme:
a device for collecting volatile organic compounds on the surface of a product, comprising the system for collecting volatile organic compounds on the surface of a product as claimed in any one of claims 1 to 4.
Optionally, the collecting device comprises a box body, wherein a mounting base body is arranged in the box body, and a containing cavity for placing the sampling cover is reserved in a cavity in the box body; the power pump, the heating module and the acquisition module are installed in the installation base body, and a control panel used for controlling the power pump and the heating module is arranged on the installation base body.
Through adopting above-mentioned technical scheme, when actual need detected the product, the operation is gathered to the place that corresponds to this equipment of carrying that can be comparatively convenient, and it is comparatively convenient to use.
Optionally, the collecting module is a thermal desorption tube, and the mounting substrate is provided with a mounting groove for mounting the thermal desorption tube;
a plug matched with the thermal desorption tube is arranged at the bottom of the mounting groove, so that the thermal desorption tube is connected with the circulating pipeline;
one end of the thermal desorption tube, which faces the outside of the mounting groove, extends to the outside of the mounting groove, the multi-way valve is positioned on the outside of the mounting base body, and the multi-way valve is fixedly connected with the thermal desorption tube in an inserted manner.
By adopting the technical scheme, when the plurality of thermal desorption tubes are required to be used for collecting volatile organic compounds and the thermal desorption tubes are required to be replaced, the multi-way valve is directly pulled out from the thermal desorption tubes and pulled out from the mounting groove, then another new thermal desorption tube is inserted into the mounting groove, and the multi-way valve is fixed at the end part of the thermal connection tube outside the mounting groove, so that the replacement of the thermal desorption tubes can be realized, the use is convenient, and the working efficiency is improved.
Optionally, a sealing gasket is fixed on the side face of the sampling cover, which is attached to the surface of the product.
Through adopting above-mentioned technical scheme, during the sampling, with the cover back-off of sampling on the product surface, sealed pad and product surface butt can promote the leakproofness of the position department of meeting between sampling cover and the product surface, and the in-process of follow-up sampling reduces the problem that the gas in the appearance sampling intracavity leaks, is difficult to exert an influence to normal sampling and subsequent analytic process.
Optionally, the sampling cover is provided with a balancing weight.
Through adopting above-mentioned technical scheme, the balancing weight is placed and is covered exerting pressure to the sampling cover in the sampling for the sealing pad is by compressive deformation, can further promote the leakproofness between sampling cover and the product.
Optionally, the sampling cover is a hemispherical shell;
the balancing weight is annular and is formed by splicing at least two splicing blocks.
By adopting the technical scheme, when the balancing weight is arranged on the sampling cover, the splicing blocks are directly spliced to form an annular structure, the seed matching block is stably arranged on the sampling cover, and no additional fixation is needed; in addition, under the condition that the upper end of the sampling cover is connected with the vent pipe, the balancing weight is formed by splicing the splicing blocks, the one end of the vent pipe on the sampling cover does not need to be sleeved in, the sampling cover can be directly spliced, and the convenience in use is improved.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when the volatile organic compounds generated by the product are collected, the circulating pipeline is arranged to drive the gas to circulate, and the gas is heated in the gas circulation process to be maintained at a set temperature, so that the speed of the volatile organic compounds precipitated by the product can be increased, the circulating gas is always kept at a stable temperature, the time of the volatile organic compounds precipitated is shortened, and the collection efficiency is improved;
2. when a plurality of thermal desorption tubes are needed to collect volatile organic compounds and the thermal desorption tubes are needed to be replaced, the multi-way valve is directly pulled out from the thermal desorption tubes and pulled out from the mounting groove, then another new thermal desorption tube is inserted into the mounting groove, and the multi-way valve is fixed on the end part of the thermal connection tube outside the mounting groove, so that the replacement of the thermal desorption tubes can be realized, the use is convenient, and the working efficiency is improved.
Drawings
FIG. 1 is a schematic view of a volatile organic collection system of the present application;
FIG. 2 is a schematic view of a volatile organic collection apparatus of the present application;
FIG. 3 is an enlarged schematic view of portion A of FIG. 2;
fig. 4 is a schematic diagram illustrating a structure of a weight.
Description of reference numerals: 1. a sampling cover; 11. a gasket; 2. a power pump; 3. a heating module; 4. an acquisition module; 5. a three-way switching valve; 6. a flow sensor; 7. a box body; 71. installing a base body; 72. an accommodating chamber; 73. mounting grooves; 8. a balancing weight; 81. splicing blocks; 82. an insertion block; 83. and (4) inserting grooves.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses a system for collecting volatile organic compounds on the surface of a product, which is introduced by taking the detection of furniture such as a cabinet body, a sofa and the like as an example, but it should be noted that the scheme disclosed by the embodiment of the application is also suitable for the detection of other solid products such as a wall body, a ground and the like; referring to fig. 1, the acquisition system comprises a sampling cover 1, a power pump 2, a heating module 3 and an acquisition module 4; the sampling cover 1 is a hemispherical shell, the sampling cover 1 is reversely buckled on the surface of the furniture to be detected, and the sampling cover 1 and the surface of the furniture to be detected form a closed sampling cavity; the air inlet end of the power pump 2 is communicated with the interior of the sampling gun through a pipeline, one end of the heating module 3 is communicated with the air outlet end of the power pump 2 through a pipeline, and the other end of the heating module is communicated with the sampling cavity through a pipeline, so that the sampling cavity, the power pump 2 and the heating module 3 form a circulation passage; the air outlet end of the power pump 2 is connected with a three-way switching valve 5, the second interface of the three-way switching valve 5 is connected with a flow sensor 6, and the flow sensor 6 is connected with the heating module 3 through a pipeline; the collection module 4 is connected on the third interface of three-way switching valve 5, and the one end that collection module 4 keeps away from three-way switching valve 5 is connected on flow sensor 6 towards the pipeline of three-way switching valve 5 one side, absorbs the volatile organic compounds that contain in the gas through the collection module 4 who sets up.
When volatile organic compounds volatilized from furniture are collected, the sampling cover 1 is reversely buckled on the surface of the furniture, the power pump 2 works to drive gas to circulate, the three-way switching valve 5 is adjusted, so that the gas directly passes through the power pump 2 and then is led to the flow sensor 6 without passing through the collection module 4, then the gas flows through the heating module 3 and then flows back to the sampling cavity to form a completed cycle, the gas is heated by the heating module 3 in the cycle process, the temperature of the circulated gas is raised to a set temperature, the volatilization speed of the volatile organic compounds of the furniture can be accelerated, the sampling time is shortened, and the working efficiency is improved; after the sampling duration reaches the set duration, adjust three-way switch valve 5 for the gas flow is through collection module 4, and collection module 4 collects the volatile organic compounds in the gas, later detects the volatile organic compounds volume of collecting, and it is comparatively convenient to carry out the operation of gathering to volatile organic compounds.
For the set temperature of the volume in the embodiment of the application, the set temperature is set according to the type of the detected furniture material and the type of the detected volatile organic compound in the actual operation, and a person skilled in the art can conveniently obtain the value of the set temperature according to the known technology, so the process and the specific relation for obtaining the set temperature are not repeated; in the gas circulation process, the continuous temperature regulation is realized through the heating module 3, so that the gas is always maintained at a set temperature, and the effect of promoting the volatilization of volatile organic compounds in furniture is better.
The collection module 4 is a thermal desorption tube, which is a device commonly used by those skilled in the art in the process of collecting volatile organic compounds; the power pump 2 is an adjustable flow pump, the gas circulation damage rate is directly adjusted by adjusting the power pump 2, the gas circulation rate is maintained at a first set rate in the process of promoting the volatilization of volatile organic compounds in furniture through gas circulation, and the gas circulation rate is adjusted to be maintained at a second set rate in the process of collecting the volatile organic compounds by the collection module 4, wherein the second set rate is smaller than the first set rate; in the process of collecting volatile organic compounds, the problem of breakdown caused by the thermal desorption tube is not easy to occur, the device is well protected, the gas circulation rate is increased in the volatile stage of the organic compounds, the sampling speed is increased, and the working efficiency is higher.
The flow sensor 6 has a screen display function, can conveniently acquire the circulating flow rate of gas in the process of collecting volatile organic compounds, and is matched with the power pump 2 to adjust the flow rate, so that the gas flow rate can be conveniently adjusted to a required size; in addition, the flow sensor 6 can measure the flow rate and simultaneously measure the volume of the gas flowing through the flow sensor 6 in a certain period of time by combining a timing function; when the three-way switching valve 5 is adjusted to enable gas to flow through the thermal desorption tube, the flow sensor 6 starts to measure the volume, when the volume of the gas flowing through the flow sensor 6 reaches the sum of the volumes of the sampling cavity and the circulation path, the power pump 2 is closed, sampling is stopped, and therefore the amount of volatile organic matters collected by the thermal desorption tube is the amount of volatile organic matters precipitated in a set time period of furniture and the part of the volatile organic matters precipitated in the process of collecting the volatile organic matters by the thermal desorption tube is not included.
The application still discloses a product surface volatile organic compounds collection system, refer to fig. 2, this collection system includes a box 7, the integration has volatile organic compounds collection system in the box 7, the box 7 internal fixation has an installation base member 71, and installation base member 71 is located box 7 one side position department, make the interior chamber 72 that holds that forms one and be located installation base member 71 one side of box 7, should hold chamber 72 and be used for placing sampling cover 1, in the time of the in-service use, place the foam-rubber cushion and prescribe a limit to the position of sampling cover 1 in holding chamber 72, place the stability in holding chamber 72 in order to promote sampling cover 1, reduce the problem that the in-process sampling cover 1 that carries this equipment to remove and rock in holding chamber 72.
In addition, the power pump 2, the acquisition module 4, the heating module 3 and the flow sensor 6 are all integrated in the mounting base 71, a control panel is arranged on the mounting base 71, and the control panel is used for displaying the temperature of the heating module 3 for heating the gas and the flow rate and flow rate of the gas, and adjusting the temperature of the heating module 3 and the power pump 2; by integrating various elements in the box body 7, the device can be conveniently carried to a place needing to be detected when in use, and the convenience in use is provided.
Referring to fig. 2 and 3, an installation groove 73 is formed in the installation base 71, the thermal desorption tube is arranged in the installation groove 73, a plug adaptive to the thermal desorption tube is fixedly operated in the installation groove 73, the thermal desorption tube is inserted into the installation groove 73 and connected with the plug in the installation groove 73, and the connection between the thermal desorption tube and the circulation pipeline is realized; the other end of the thermal desorption tube is positioned outside the mounting groove 73, the three-way switching valve 5 is also positioned outside the mounting base body 71, and the thermal desorption tube is connected with the three-way switching valve 5 in an inserting mode, so that when the thermal desorption tube needs to be replaced, the three-way switching valve 5 is firstly pulled out from the end part of the thermal desorption tube, then the thermal desorption tube is pulled out from the mounting groove 73, the disassembly of the thermal desorption tube can be completed, the thermal desorption tube is directly inserted into the mounting groove 73 during mounting, the three-way switching valve 5 is connected to the end part of the thermal desorption tube, the use is convenient, if a plurality of thermal desorption tubes are needed to be used for collecting organic matters which cannot be volatilized by furniture in the sampling process, the operation of replacing the thermal desorption tube is convenient, and the use convenience of the device is improved.
Referring to fig. 4, a sealing gasket 11 is fixed on the side surfaces of the sampling cover 1 and the furniture surface box 7, the sealing gasket 11 can be made of flexible material, and materials which are high temperature resistant and are not easy to react with various volatile organic compounds such as fluororubber pads and the like can be selected in practical use; the sampling cover 1 is provided with a balancing weight 8 in a matching way, the matching block is annular and is formed by splicing two splicing blocks 81, the two splicing blocks 81 are both semicircular, a splicing structure is arranged between the two splicing blocks 81, and the two splicing blocks 81 are fixed through the splicing structure; specifically, the insertion block 82 includes an insertion block 82 fixed on one of the splicing blocks 81 and an insertion groove 83 formed in the other splicing block 81, and the insertion block 82 is inserted into the insertion groove 83 to fix the two piece splicing blocks.
In the actual sampling process, the sampling cover 1 is buckled on the surface of the furniture, the two splicing blocks 81 are fixedly and tightly pressed on the sampling cover 1, sufficient pressure is applied to the sampling cover 1 to deform the sealing gasket 11, so that the good sealing performance between the sampling cover 1 and the surface of the furniture is ensured, the problem of leakage of volatile organic compounds is not easy to occur in the subsequent sampling process, and the problem of error generation caused by the influence on the accuracy of a detection result is reduced; set up balancing weight 8 and constitute by two concatenation are pegged graft soon fixedly, place balancing weight 8 on sampling cover 1 comparatively conveniently, need not place balancing weight 8 earlier on sampling cover 1 at connecting tube, it is comparatively convenient to use.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (5)
1. The utility model provides a product surface volatile organic compounds collection system which characterized in that: the sampling device comprises a box body (7), wherein a mounting base body (71) is arranged in the box body (7), and a containing cavity (72) for placing a sampling cover (1) is reserved in the cavity in the box body (7); the power pump (2), the heating module (3) and the acquisition module (4) are installed in the installation base body (71), and a control panel used for controlling the power pump (2) and the heating module (3) is arranged on the installation base body (71).
2. The apparatus for collecting volatile organic compounds on the surface of a product according to claim 1, wherein: the acquisition module (4) is a thermal desorption tube, and an installation groove (73) for installing the thermal desorption tube is formed in the installation base body (71);
a plug matched with the thermal desorption tube is arranged at the bottom of the mounting groove (73), so that the thermal desorption tube is connected with the circulating pipeline;
one end of the thermal desorption tube, which faces the outside of the mounting groove (73), extends to the outside of the mounting groove (73), the multi-way valve is positioned on the outside of the mounting base body (71), and the multi-way valve is fixedly connected with the thermal desorption tube in an inserted manner.
3. The apparatus for collecting volatile organic compounds on the surface of a product according to claim 1, wherein: and a sealing gasket (11) is fixed on the side surface of the sampling cover (1) which is attached to the surface of the product.
4. The apparatus for collecting volatile organic compounds on the surface of a product according to claim 1, wherein: and a balancing weight (8) is arranged on the sampling cover (1).
5. The apparatus for collecting volatile organic compounds on the surface of a product according to claim 4, wherein: the sampling cover (1) is a hemispherical shell;
the balancing weight (8) is annular and is formed by splicing at least two splicing blocks (81).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220658640.1U CN217111680U (en) | 2022-03-24 | 2022-03-24 | Equipment for collecting volatile organic compounds on surface of product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220658640.1U CN217111680U (en) | 2022-03-24 | 2022-03-24 | Equipment for collecting volatile organic compounds on surface of product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217111680U true CN217111680U (en) | 2022-08-02 |
Family
ID=82605615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220658640.1U Active CN217111680U (en) | 2022-03-24 | 2022-03-24 | Equipment for collecting volatile organic compounds on surface of product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217111680U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116735805A (en) * | 2023-07-12 | 2023-09-12 | 芜湖大正机动车检测服务有限公司 | Air quality detection device in car |
-
2022
- 2022-03-24 CN CN202220658640.1U patent/CN217111680U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116735805A (en) * | 2023-07-12 | 2023-09-12 | 芜湖大正机动车检测服务有限公司 | Air quality detection device in car |
| CN116735805B (en) * | 2023-07-12 | 2024-01-02 | 江苏富泰净化科技股份有限公司 | Air quality detection device in car |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN217111680U (en) | Equipment for collecting volatile organic compounds on surface of product | |
| CN102520434B (en) | Open-loop type quick measurement method of radon exhalation rate | |
| CN104893974A (en) | Portable stem cell amplification culturing device capable of being online monitored dynamically in real time | |
| CN206002268U (en) | Cylinder seal testing equipment | |
| CN214229613U (en) | Stem cell test tube storage device is used in laboratory | |
| CN205642765U (en) | Bellows gas tightness check out test set | |
| EP3736902A3 (en) | System and method for leak testing a battery cell | |
| CN208351173U (en) | A kind of ageing tester for liquid crystal display die set production | |
| CN212391224U (en) | Constant temperature equipment operating mode simulation testing arrangement | |
| CN112987821A (en) | Thermostat testing device and testing method thereof | |
| CN210108640U (en) | Water heater gas tightness detection device | |
| CN210108635U (en) | Special leak detection device for steam turbine condenser | |
| CN211013405U (en) | Heat exchanger detection device | |
| CN211452767U (en) | Automobile air outlet leakage measuring device | |
| CN209559414U (en) | A kind of small-sized test line group of pressure regulator valve | |
| CN209494809U (en) | LED drive power fills black glue assembling device | |
| CN106932189A (en) | A kind of method and system for measuring water seal arrangement dynamic trap seal loss | |
| CN211825949U (en) | Ceiling smell testing arrangement | |
| CN213021722U (en) | Air source heat pump testing device | |
| CN214151520U (en) | Thermostat testing device | |
| CN220788606U (en) | Compressed gas microorganism sampler | |
| CN209148070U (en) | A kind of cubing mechanism and device | |
| CN213600308U (en) | A gas tightness detection device for inflation section | |
| CN212974269U (en) | Thermal vacuum degasser for gas logging | |
| CN205593288U (en) | Novel liquid nitrogen machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |