CN216133013U - But real-time supervision's bituminous mixture VOCs takes place and collection device - Google Patents
But real-time supervision's bituminous mixture VOCs takes place and collection device Download PDFInfo
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- CN216133013U CN216133013U CN202120787876.0U CN202120787876U CN216133013U CN 216133013 U CN216133013 U CN 216133013U CN 202120787876 U CN202120787876 U CN 202120787876U CN 216133013 U CN216133013 U CN 216133013U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
The utility model relates to a closed asphalt mixture VOCs generating and collecting device capable of monitoring in real time, which can simulate the temperature change of an asphalt pavement in the transportation and paving processes and accurately simulate and collect the VOCs emission of the asphalt pavement in the transportation and paving processes. The method is characterized in that: comprises a closed temperature control box, a VOCs sampling tube, a particulate matter monitoring hole, a PTFE filter membrane (0.1 mu m), a sampling pump, a sampling bag and a shading box; VOCs sampling tube design is in airtight accuse temperature case accuse temperature space upper wall centre, and particulate matter monitoring hole design is on VOCs sampling tube right side, and VOCs sampling tube is connected to PTFE filter membrane one end, and the sampling pump air inlet is connected to the other end, and the sampling bag in the shading case is connected to the sampling pump air inlet.
Description
Technical Field
The utility model belongs to the field of building materials, and relates to a VOCs generating and collecting device in a laboratory simulation asphalt mixture transportation and paving process.
Background
A large amount of Volatile Organic Compounds (VOCs) are generated in the process of asphalt pavement construction, service and maintenance. VOCs contain a large amount of carcinogenic substances, and if a human body contacts or inhales the VOCs for a long time, various skin, respiratory tract and lung diseases can be caused, and meanwhile, some light components in the VOCs, such as low-carbon hydrocarbons, polycyclic aromatic hydrocarbons, nitrogen hydrocarbons and the like, are released into the air, so that the environmental pollution problems of greenhouse effect, acid rain, haze and the like can be caused. Therefore, the collection and analysis of the components of the VOCs in the asphalt mixture are of great significance to the research on the reduction of the discharge of the VOCs in the asphalt.
Disclosure of Invention
The utility model aims to provide an indoor collecting device for simulating VOCs (volatile organic compounds) discharge in the process of transporting and paving an asphalt mixture.
The utility model provides an indoor collection device that bituminous mixture transportation and in-process VOCs that paves discharged which characterized in that: comprises a closed temperature control box 4, a VOCs sampling tube 5, a particulate matter monitoring hole 6, a filter membrane box 7, a PTFE filter membrane 8, a sampling pump 9, a sampling bag 10 and a shading box 11; VOCs sampling tube 5 designs in 4 workspace upper walls centre of airtight accuse temperature box, and 6 designs in VOCs sampling tube 5 right sides in particulate matter monitoring hole, and VOCs sampling tube 5 is connected to 8 one end of PTFE filter membrane, and 9 air inlets of sampling pump are connected to the other end, and sampling bag 10 in the shading case 11 is connected to 9 gas outlets of sampling pump.
The integral structure is divided into three parts: the system comprises an asphalt mixture VOCs generating part 1, a heavy component adsorption part 2 and a light component collecting part 3; the VOCs generating part 1 comprises a closed temperature control box 4, a VOCs sampling pipe 5 and a particulate matter monitoring hole 6, wherein a support frame 12 is arranged on the inner wall of the closed temperature control box 4, and a temperature control heating pipe 13 is arranged below the support frame 12; one end of the VOCs sampling pipe 5 is connected with the working space of the closed temperature control box 4, and the other end is connected with the air inlet of the heavy component adsorption part 2 through a conduit; the heavy component adsorption part 2 comprises a filter membrane box 7 and a PTFE filter membrane 8, the PTFE filter membrane 8 is arranged in the filter membrane box 7 and is used for adsorbing heavy component components with the particle size of more than 0.1 mu m in the VOCs, and the gas outlet of the heavy component adsorption part 2 is connected with the gas inlet of the light component collection part 3 through a conduit; the light component collecting part 3 comprises a sampling pump 9, a sampling bag 10 and a shading box 11, the air inlet of the light component collecting part 3 is the air inlet of the sampling pump 9, and the air outlet of the sampling pump 9 is connected with the sampling bag 10 in the shading box 11 through a guide pipe.
The utility model aims to simply, conveniently and efficiently collect the VOCs components of the asphalt, distinguish the VOCs components according to light components and heavy components, and facilitate the research of the VOCs components of the asphalt, and the sampling bag 11 is arranged in the light shielding box 10, thereby being beneficial to stably storing the collected VOCs gas.
Drawings
FIG. 1: but the whole sketch map of bituminous mixture VOCs emergence and collection device of real-time supervision.
FIG. 2: the utility model relates to a part of three-dimensional images and working space section images of VOCs of asphalt mixture.
FIG. 3: the utility model relates to a VOCs light component collecting device.
In the figure, 1, an asphalt mixture VOCs generating part, 2, a heavy component adsorbing part, 3, a light component collecting part, 4, a closed temperature control box, 5, a VOCs sampling pipe, 6, a particulate matter collecting hole, 7, a filter membrane box, 8, a PTFE filter membrane, 9, a sampling pump, 10, a sampling bag, 11, a shading box, 12, a support frame and 13, a temperature control heating pipe.
Detailed Description
The specific structural features and objects of the present invention are further described below in conjunction with the appended drawings.
Referring to fig. 1, the present invention is an apparatus for generating and collecting VOCs of asphalt mixture, which can be monitored at different temperatures in real time, and is divided into an asphalt mixture VOCs generating part 1, a heavy component adsorbing part 2, and a light component collecting part 3. The heavy component adsorbing portion 2 was composed of a known filter cartridge 7 and a PTFE filter 8 having a diameter of 47mm and a pore diameter of 0.1. mu.m.
Fig. 2 shows a part 1 for generating VOCs of asphalt mixture, in which the size of the working space of the sealed temperature control box 4 is 300mm in length and 300mm in width and 275mm in height, the inner wall of the working space is made of stainless steel, and the sealed temperature control box 4 is provided with a temperature control adjustment panel; the VOCs sampling pipe 5 is located in the middle of the upper wall of the working space, the diameter of the sampling pipe is 7mm, the sampling pipe is made of stainless steel materials, the outer side of the VOCs sampling pipe 5 is designed to be in a known tower head shape, and the surface of the sampling pipe is subjected to smoothing treatment, so that the sampling pipe is connected with a guide pipe more firmly and tightly; the particle detection hole 6 is positioned at the position 80mm on the right side of the VOCs sampling tube 5, and the diameter is 22 mm; the support frame 12 is positioned 200mm below the VOCs sampling pipe 5 and used for placing asphalt mixture; the temperature control heating pipe 13 is positioned 55mm below the support frame 12 to ensure that the working space is heated uniformly.
Fig. 3 shows the light fraction collecting section 3 in which the flow rate of the sampling pump 9 is controlled; the light shielding box 11 is a cuboid made of 5mm thick cardboard, and has a size of 400mm long, 250mm wide and 300mm high, and mainly functions to prevent some components in the collected light components of the VOCs from being decomposed by light, and a small hole with a diameter of 7mm is arranged in the middle of an upper plate for a conduit to pass through and convey the light components of the VOCs.
It should be understood, however, that the description herein of embodiments with respect to dimensions of the sample, types of materials, configurations and relative arrangements of component parts, is not intended to limit the utility model to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model as defined by the appended claims.
Claims (1)
1. The utility model provides a but bituminous mixture VOCs emergence and collection device of real-time supervision which characterized in that: comprises a closed temperature control box, a VOCs sampling tube, a particulate matter monitoring hole, a PTFE filter membrane, a sampling pump, a sampling bag and a shading box; VOCs sampling tube design is in airtight accuse temperature case accuse temperature space upper wall centre, and particulate matter monitoring hole design is on VOCs sampling tube right side, and VOCs sampling tube is connected to PTFE filter membrane one end, and the sampling pump air inlet is connected to the other end, and the sampling bag in the shading case is connected to the sampling pump air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120787876.0U CN216133013U (en) | 2021-04-18 | 2021-04-18 | But real-time supervision's bituminous mixture VOCs takes place and collection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120787876.0U CN216133013U (en) | 2021-04-18 | 2021-04-18 | But real-time supervision's bituminous mixture VOCs takes place and collection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216133013U true CN216133013U (en) | 2022-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120787876.0U Active CN216133013U (en) | 2021-04-18 | 2021-04-18 | But real-time supervision's bituminous mixture VOCs takes place and collection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216133013U (en) |
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2021
- 2021-04-18 CN CN202120787876.0U patent/CN216133013U/en active Active
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