CN111983079B - Device for displaying volatilization rate and volatilization level of harmful substances in decoration and finishing materials - Google Patents
Device for displaying volatilization rate and volatilization level of harmful substances in decoration and finishing materials Download PDFInfo
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Abstract
The invention relates to a device for displaying volatilization rate and volatilization level of harmful substances in a decoration material, belonging to the field of indoor environment treatment. The device comprises a test chamber, a heating plate, an indoor air pollutant treatment system, a temperature display and control device and a temperature sensor, wherein a plurality of sampling ports are formed in the side wall of the test chamber, the heating plate and the indoor air pollutant treatment system are arranged in the test chamber, the heating plate and the temperature sensor are electrically connected with the temperature display and control device, and the temperature sensor is arranged in the test chamber. The device for displaying the volatilization rate and the volatilization level of the harmful substances of the decoration and finishing material has the advantages of simple structure, ingenious design and convenient assembly and disassembly, and is suitable for popularization and use.
Description
Technical Field
The invention relates to a device for displaying volatilization rate and volatilization level of harmful substances in a decoration material, belonging to the field of indoor pollution detection and air treatment.
Background
With the continuous progress of society and the continuous improvement of living standard, new buildings in China are more and more, and indoor decoration becomes a practical problem to be faced by every family. In the process of market research, the environment-friendly effect of the propaganda of the decoration materials is found to be ideal. However, the problem of IAQ degradation of indoor air quality after installation and repair is becoming more severe. Research results show that more than 90% of newly-decorated houses have the problem that formaldehyde and Volatile Organic Compounds (VOCs) exceed the standard, the exceeding multiple is 1-5 times, the health of residents, particularly old people and children is greatly damaged, and diseases of a nervous system, an immune system and a respiratory system are easily caused.
The main reasons for this problem are: the concept of most people is 'decoration first, evaluation later and post-treatment', so that the treatment period is longer, and the problem is not solved at the pollution source; consumers are blindly interested in selecting decoration materials and have no knowledge about the emission characteristics and pollution level of the materials; in the decoration process, a plurality of building materials are overlapped for use, and a consumer cannot know the indoor air pollution degree caused by the building materials before decoration.
At present, few pre-evaluation methods aiming at decoration pollution in China exist, and particularly, research methods for the release levels of pollutants such as building material formaldehyde, VOC and the like under the heating condition in northern cold regions are rarely reported. It is known that the influence of materials on the living environment is closely related to factors such as production process, environment temperature and humidity, ventilation and the like. The climate difference between the south China area and the northeast cold area is obvious, the temperature and humidity change amplitude of the south China area is small, the temperature difference between different seasons and day and night in the northern cold area is large, and the relative humidity change amplitude is large, so that the production process and the performance of the decoration material have difference, and the indoor environment parameters and the ventilation conditions are also different.
Therefore, the application research of the decoration air quality control technology with regional characteristics aiming at the indoor environment, the heating mode and the ventilation characteristics of the northeast cold region is urgently needed. The method has the advantages that the concentration level and the change trend of pollutants generated by the proposed decoration design scheme are predicted in the early stage by simulating the application space and the environmental conditions of the building materials and developing the building material overlapping usage amount, the environmental conditions and the air treatment scheme, so that a resident can clearly know the indoor environmental pollution level possibly generated by the decoration scheme before living, the IAQ problem caused by indoor decoration is solved at the source, the purchase and selection of decoration materials when the resident decorates the building are facilitated, and the method has urgent social requirements in a new era of more and more paying attention to the green health concept.
Disclosure of Invention
The present invention has been developed in order to provide a device for displaying a volatilization rate and a volatilization level of a harmful material of a finishing material, which can detect a pollutant emission level and a pollutant emission rate when the finishing material is used in an overlapped manner under uneven temperature and humidity conditions, and provide an air pollution control method according to environmental conditions and pollutant concentration levels, and a brief summary of the present invention is provided below in order to provide a basic understanding of some aspects of the present invention. It should be understood that this summary is not an exhaustive overview of the invention. It is not intended to determine the key or critical elements of the present invention, nor is it intended to limit the scope of the present invention.
The technical scheme of the invention is as follows:
the utility model provides a decorative finishing material harmful substance rate of volatilizing and the horizontal display device that volatilizees, includes test chamber, hot plate, indoor air pollutant treatment system, temperature display and controlling means and temperature sensor, and test chamber lateral wall processing has a plurality of sample mouths, and test chamber internally mounted has hot plate and indoor air pollutant treatment system, hot plate and temperature sensor and temperature display and controlling means electric connection, and temperature sensor installs in the test chamber.
Preferably: the test chamber includes the casing, the heat preservation, the simulation door, the simulation window, sample adheres to glass board and fan, the casing outside is provided with the heat preservation, simulation door and simulation window are installed respectively to the both sides lateral wall around the casing, the both sides lateral wall is provided with a plurality of thief hatches respectively around the casing, the hot plate is installed to the lower inner wall and the rear side inner wall of casing, sample adheres to glass board and passes through the buckle and install the left and right sides inner wall at the casing, the last inner wall at the casing is installed to the fan, the inside indoor air pollutant control system that is provided with of casing, fan and temperature display and controlling means electric connection.
Preferably, the following components: the heating plate comprises a heat-conducting plate and an electric heating pipe, and the electric heating pipe is arranged between the heat-conducting plate and the lower inner wall and the rear inner wall of the shell.
Preferably: indoor air pollutant treatment system includes shell body, filter screen, air pump, rubber tube, gas head, active carbon, X type molecular sieve, water planting plant and culture solution, shell body inside has a recess, the recess packing has the culture solution, the air pump passes through pipeline and recess in the culture solution intercommunication, shell body internally mounted has two-layer filter screen, the air pump is installed on the shell body, the gas head passes through the rubber tube and communicates the installation with the air pump, the gas head sets up between two-layer filter screen, be provided with active carbon and X type molecular sieve between the two-layer filter screen, be provided with the water planting plant in the culture solution.
Preferably: the culture solution comprises rhizobia, a phenol reagent and a nutrient solution.
A device for displaying volatilization speed and volatilization level of harmful substances in decorative and finishing materials comprises the following operation steps:
step a, after a wet material is coated on the surface of a sample-attached glass plate, the sample-attached glass plate is placed at a temperature of 23-28 ℃ and dried and cured for 1-3 days in a well-ventilated environment until the wet material is dried and solidified;
b, mounting the sample attaching glass plates placed in the step a on the inner walls of the left side and the right side of the shell;
c, controlling and adjusting the fan and the heating plate through the temperature display and control device to enable the temperature inside the test chamber to simulate indoor heating conditions in a cold area;
d, connecting a sampling port with an external air sampling pump, collecting air samples in the test chamber according to a certain time interval, designing dense sampling points at the initial stage, prolonging the sampling interval at the later stage, analyzing VOCs gas in the sampled air in the chamber by using a gas chromatograph or a gas-mass spectrometer after the samples are collected, and analyzing the concentration of formaldehyde by using an ultraviolet spectrophotometer by using a phenol reagent method;
e, the total sampling time of the step d is 10-12 hours, the simulation door and the simulation window are opened after 10-12 hours, an external air sampling pump collects the air sample in the cabin of the test cabin again, after the sample is collected, a gas chromatograph or a gas-mass spectrometer is used for analyzing the VOCs gas in the sampled air in the cabin, and an ultraviolet spectrophotometer is used for analyzing the formaldehyde concentration by using a phenol reagent method;
and f, after the step e lasts for 4-5 hours, closing the simulation door and the simulation window, pumping the indoor air into the indoor air pollutant treatment system by using the air pump for adsorption and filtration, simultaneously collecting the air sample in the test chamber again by using the external air sampling pump, analyzing the VOCs gas in the sampled air in the chamber by using the gas chromatograph or the gas-mass spectrometer after the sample is collected, and analyzing the formaldehyde concentration by using the ultraviolet spectrophotometer by using a phenol reagent method until the air in the test chamber reaches the living standard.
Preferably: the hydroponic plants are chlorophytum comosum and scindapsus aureus, and the phenol reagent is a formaldehyde absorbent.
Preferably, the following components: the shell is a color steel plate shell, and the simulation door and the simulation window are plastic steel doors and windows.
Preferably: the temperature sensors are distributed in the shell up and down.
Preferably: the interior of the shell is provided with dry materials such as floors, artificial boards, carpets, wallpaper and the like and wet materials such as adhesives, interior wall coatings and the like.
The invention has the following beneficial effects:
1. the device for displaying the volatilization rate and the volatilization level of harmful substances in the decoration and finishing material can simulate indoor heating conditions in cold regions, put building material samples into the test cabin under different heating conditions, develop a building material pollutant emission concentration level test, estimate a building material pollution emission period, help residents judge the decoration pollution emission level and time, and take effective treatment and prevention measures in time;
2. the pollutant treatment system can be used for removing gaseous pollutants such as formaldehyde, VOCs and the like emitted by a building material sample;
3. the device for displaying the volatilization rate and the volatilization level of harmful substances in the decoration and finishing material can detect the pollutant emission level of the decoration and finishing material in the overlapping use under the conditions of uneven temperature and humidity, and plays a visual role in controlling the quality of the decoration and finishing material;
4. the device for displaying the volatilization speed and the volatilization level of the harmful substances in the decoration and finishing material has the advantages of simple structure, ingenious design, convenience in disassembly and assembly and low manufacturing cost, and is suitable for popularization and application.
Drawings
FIG. 1 is a schematic diagram of a test chamber configuration;
fig. 2 is a schematic view of an arrangement of electric heating pipes;
FIG. 3 is a schematic diagram of an indoor air pollutant remediation system;
FIG. 4 is a schematic diagram of the arrangement of hydroponic plants;
in the figure, 1-a test chamber, 2-a heating plate, 3-an indoor air pollutant treatment system, 4-a temperature display and control device, 5-a temperature sensor, 11-a shell, 12-a heat insulation layer, 13-a simulation door, 14-a simulation window, 15-a sampling port, 16-a sample attachment glass plate, 17-a fan, 18-an electric heating pipe, 31-an outer shell, 32-a filter screen, 33-an air pump, 34-a rubber pipe, 35-an air head, 36-activated carbon, 37-an X-type molecular sieve, 38-a water culture plant, 39-a culture solution and 311-a groove.
Detailed Description
In order that the objects, aspects and advantages of the invention will become more apparent, the invention will be described by way of example only, and in connection with the accompanying drawings. It is to be understood that such description is merely illustrative and not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
The connection mentioned in the invention is divided into fixed connection and detachable connection, the fixed connection is non-detachable connection and includes but is not limited to folding edge connection, rivet connection, bonding connection, welding connection and other conventional fixed connection modes, the detachable connection includes but is not limited to threaded connection, snap connection, pin connection, hinge connection and other conventional detachment modes, when the specific connection mode is not clearly limited, at least one connection mode can be found in the existing connection modes by default to realize the function, and the skilled person can select according to the needs. For example: the fixed connection selects welding connection, and the detachable connection selects hinge connection.
The first embodiment is as follows: the present embodiment is described with reference to fig. 1 to 4, and the apparatus for displaying volatilization rate and volatilization level of harmful substances in a decoration material of the present embodiment comprises a test chamber 1, a heating plate 2, an indoor air pollutant treating system 3, a temperature display and control device 4 and a temperature sensor 5, wherein a plurality of sampling ports 15 are formed in the side wall of the test chamber 1, the heating plate 2 and the indoor air pollutant treating system 3 are installed inside the test chamber 1, the heating plate 2 and the temperature sensor 5 are electrically connected to the temperature display and control device 4, the temperature sensor 5 is installed inside the test chamber 1, the height of the test chamber 1 is 1.8m, the width is 1.8m, the length is 3m, the test chamber 1 can simulate indoor heating conditions in cold regions, and building material samples are put into the test chamber under different heating conditions to develop a building material pollutant emission concentration level experiment to estimate the emission period of a building material pollution, the temperature sensor 5 can detect the temperature conditions of different positions in the detection system, and the indoor air pollutant treatment system 3 can be used for removing gaseous pollutants such as formaldehyde, VOCs and the like emitted by the building material sample.
The second embodiment is as follows: the present embodiment is described with reference to fig. 1 to 4, and the apparatus for displaying volatilization rate and volatilization level of harmful substances in a decoration and finishing material of the present embodiment comprises a casing 11, a heat insulating layer 12, a simulation door 13, a simulation window 14, a sample attached glass plate 16 and a fan 17, wherein the heat insulating layer 12 is arranged outside the casing 11, the simulation door 13 and the simulation window 14 are respectively installed on the front and rear side walls of the casing 11, a plurality of sampling ports 15 are respectively arranged on the front and rear side walls of the casing 11, a heating plate 2 is installed on the lower inner wall and the rear inner wall of the casing 11, the sample attached glass plate 16 is installed on the left and right inner walls of the casing 11 through a buckle, so as to realize replacement, the fan 17 is installed on the upper inner wall of the casing 11, an indoor air pollutant treating system 3 is arranged inside the casing 11, and the fan 17 is electrically connected with a temperature display and control device 4.
The third concrete implementation mode: the present embodiment will be described with reference to fig. 1 to 4, and the present embodiment is a device for displaying volatilization rate and volatilization level of harmful substances in a decoration material, wherein the heating plate 2 includes a heat conducting plate and electric heating pipes 18, the electric heating pipes 18 are installed between the heat conducting plate and the lower inner wall and the rear inner wall of the housing 11, the arrangement of the electric heating pipes 18 is parallel, the electric heating pipes 18 are installed on the rear inner wall of the housing 11 to simulate wall-mounted heating, the electric heating pipes 18 are installed on the lower inner wall of the housing 11 to simulate geothermal heating, according to the relevant regulations, the house where people stay for a long time should control the ground temperature to be 24 to 26 ℃, and the removal heat loss heating pipe temperature should be about 40 ℃ when simulating geothermal heating, so the heating temperature range of the test chamber is designed to be 24 ℃ to 40 ℃, and the heat conducting plate is made of stainless steel plate.
The fourth concrete implementation mode: the present embodiment is described with reference to fig. 1 to 4, and the indoor air pollutant treating system 3 of the present embodiment includes an outer shell 31, a filter screen 32, an air pump 33, a rubber tube 34, an air head 35, activated carbon 36, an X-type molecular sieve 37, a hydroponic plant 38 and a culture solution 39, the outer shell 31 has a groove 311, the groove 311 is filled with the culture solution 39, the air pump 33 is communicated with the culture solution 39 in the groove 311 through a pipeline, two layers of filter screens 32 are installed inside the outer shell 31, the air pump 33 is installed on the outer shell 31, the air head 35 is communicated with the air pump 33 through the rubber tube 34, the air head 35 is installed between the two layers of filter screens 32, the activated carbon 36 and the X-type molecular sieve 37 are installed between the two layers of filter screens 32, the hydroponic plant 38 is installed in the culture solution 39, the activated carbon 36 and the X-type molecular sieve 37 play a role of physical adsorption, the water culture plant 38 can be chlorophytum comosum, scindapsus aureus and other plants and plays a role in biological purification, the length, width and height of the outer shell 31 are 0.6m 0.3m 0.5m, the liquid level of the culture solution 39 is 0.4m, the mixing ratio of the activated carbon 36 to the X-type molecular sieve 37 is 1:1, the activated carbon 36 and the X-type molecular sieve 37 are arranged between the filter screen 32 and the outer shell 31, air in the test chamber 1 is pumped to the air pollutant treatment system 3 through the air pump 33, firstly the air passes through the activated carbon 36 and the X-type molecular sieve 37, the VOCs are removed through the adsorption effect of the activated carbon 36 and the X-type molecular sieve 37, and then the air is sent to the activated carbon 36 and the X-type molecular sieve 37 under the filter screen 32 through the air pump 33, so that the formaldehyde is removed.
The fifth concrete implementation mode: the embodiment is described with reference to fig. 1-4, and the device for displaying the volatilization rate and the volatilization level of the harmful substances in the decoration and finishing material of the embodiment comprises a culture solution 39, a phenol reagent and a nutrient solution; the rhizobia has the function of converting molecular nitrogen into ammonia nitrogen, can be used for water cultivation, 38 can provide a nitrogen source required for growth, the addition amounts of the active carbon 36, the X-type molecular sieve 37, the water cultivation plant 38, the rhizobia and the phenol reagent are determined according to the concentration of pollutants in the test chamber, and when the total amount TVOC of formaldehyde and volatile organic compounds is lower than 1.5mg/m3When the concentration of the phenol reagent is 0.1g/L, the number of the hydroponic plants 38 is 6, and the height of an adsorbent mixed layer consisting of the activated carbon 36 and the X-type molecular sieve 37 is 0.1 m. When the concentration of formaldehyde and TVOC is higher than 1.5mg/m3In this case, the concentration of the phenol reagent and the height of the adsorbent mixed layer should be appropriately increased.
The sixth specific implementation mode: the present embodiment is described with reference to fig. 1 to 4, and the apparatus for displaying the volatilization rate and the volatilization level of the harmful substances in the decoration and finishing material of the present embodiment comprises the following steps:
step a, after a wet material is coated on the surface of a sample attached glass plate 16, the sample attached glass plate is placed at the temperature of 23-28 ℃ and dried and cured for 1-3 days in a well ventilated environment until the wet material is dried completely and solidified;
the sample-attached glass plate 16 is an organic glass plate used for coating wet materials such as interior wall paint, adhesives, and the like. The wet material sample was uniformly coated on one side of the plexiglas plate. The coating mass ratio is 350g/m2Controlling the error within 10 percent, and after the organic glass plate is coated with a sample, placing the organic glass plate in an environment with good ventilation at 23-28 ℃ for drying and curing for 1-3 days until the wet material is dried and solidified;
b, mounting the sample attaching glass plates 16 placed in the step a on the inner walls of the left side and the right side of the shell 11, and placing dry materials such as floors, artificial boards, carpets and the like on the lower inner wall of the test chamber 1, wherein the test piece manufacturing method of the dry materials comprises the following steps: selecting a test piece at the central part along the length direction of the product, and splicing the wood floor materials according to the use condition; the artificial board and other materials can be used for placing a plurality of test pieces, and when one or more complete products are tested, edge sealing and bottom sealing are not needed. In order to simulate the actual use mode of the building materials more truly, the floor and veneer products need to be subjected to edge sealing treatment according to the generated sections, the edge sealing adopts aluminum foil sealing materials, and materials such as carpet, wallpaper and the like do not need to be subjected to edge sealing treatment;
c, controlling the adjusting fan 17 and the heating plate 2 through the temperature display and control device 4 to enable the internal temperature of the test chamber 1 to simulate indoor heating conditions in cold regions, and simulating two conditions of indoor heating in winter through an electric heating mode, namely wall-mounted heating and geothermal heating respectively, wherein the heating temperature range is 24-40 ℃, and the temperature in the chamber is ensured to be 18-26 ℃;
step d, connecting a sampling port 15 with an external air sampling pump, collecting air samples in the test chamber 1 at certain time intervals, designing the sampling points at the initial stage densely, prolonging the sampling intervals at the later stage, and ensuring that the sampling flow of the air sampling pump does not exceed 80% of the ventilation air flow in the chamber for ensuring the positive pressure in the chamber; the sampling time is usually 15-30min according to specific conditions, the sampling time can be shortened or prolonged according to the concentration in the cabin, and the test period is 168 hours; in general, the house in severe cold area has long-time door and window closing in useIn the case of the door/window closed condition, the natural ventilation frequency is 0.2 times/h, and thus 9.72m as described in the first embodiment3The ventilation rate in the test chamber space is 1800 plus 2000L/h;
after the sample is collected, analyzing VOCs gas in the sampled air in the cabin by using a gas chromatograph or a gas-mass spectrometer, and analyzing the concentration of formaldehyde by using an ultraviolet spectrophotometer by using a phenol reagent method;
step e, the total sampling time of the step d is 10-12 hours, the simulation door 13 and the simulation window 14 are opened after 10-12 hours, meanwhile, the external air sampling pump collects the air sample in the test chamber 1 again, after the sample is collected, the VOC gas in the sampled air in the chamber is analyzed by using a gas chromatograph or a gas-mass spectrometer, and the concentration of formaldehyde is analyzed by using an ultraviolet spectrophotometer by using a phenol reagent method;
step f, after the step e lasts for 4-5 hours, closing the simulation door 13 and the simulation window 14, pumping the indoor air into the indoor air pollutant treatment system 3 by using the air pump 33 for adsorption and filtration, simultaneously collecting the air sample in the cabin of the test cabin 1 again by using the external air sampling pump, after the sample is collected, analyzing the VOC gas in the sampled air in the cabin by using a gas chromatograph or a gas-mass spectrometer, and analyzing the formaldehyde concentration by using an ultraviolet spectrophotometer by using a phenol reagent method until the air in the cabin of the test cabin 1 reaches the living standard;
d, judging the decoration pollution emission level and time according to the data obtained in the steps d to f, purchasing decoration materials suitable for the self condition, and taking effective treatment and prevention measures in time by the residents;
the experimental research shows that under the heating working condition, the pollutant concentration at the upper part of the test chamber 1 is higher under the action of hot air flow, so that the indoor air pollutant treatment system 3 is arranged at the position 1.4-1.5m away from the lower inner wall of the test chamber 1, and the superposition release amount of the decoration and building material pollutants reaches the peak value after 10-12h under the state that doors and windows are closed generally, therefore, the treatment scheme designed by the invention is that the pollutants with high concentration are emitted outdoors in a windowing ventilation mode after the doors and windows are closed for 10-12h, and the ventilation time is 4-5 h. When the door and window are closed again, the air pollutant treating system 3 is started, the method can accelerate the pollutant emission rate and shorten the treating period of indoor pollutants. The operation cycle of the air pollutant treating system 3 is generally 168h, and the formaldehyde and TVOC concentrations are detected at certain time intervals in the operation process so as to judge whether the air pollutant treating system 3 reaches a saturated state. If the adsorption saturation state is reached, the solution and adsorbent mixed layer in the air pollutant treatment system 3 is replaced.
The seventh embodiment: the embodiment is described with reference to fig. 1-4, and the device for displaying the volatilization rate and the volatilization level of the harmful substances in the decoration and fitment materials of the embodiment comprises hydroponic plants such as chlorophytum comosum and scindapsus aureus, and a phenol reagent which is a formaldehyde absorbent.
The specific implementation mode is eight: the present embodiment is described with reference to fig. 1 to 4, and the device for displaying the volatilization rate and the volatilization level of the harmful substances in the decoration material of the present embodiment is a color steel plate shell, and the simulation door 13 and the simulation window 14 are plastic steel doors and windows, so as to simulate the ventilation condition and the air environment of the indoor environment.
The specific implementation method nine: the present embodiment is described with reference to fig. 1 to 4, and the present embodiment is a device for displaying volatilization rate and volatilization level of harmful substances in a decoration and decoration material, wherein a plurality of temperature sensors 5 are provided, and 4 temperature sensors 5 located at different heights are arranged in a test chamber 1, two of the temperature sensors 5 are located at the upper end of the rear side wall of a casing 11, and the other two temperature sensors 5 are located at the lower end of the front side wall of the casing 11, so as to detect temperatures at different positions up and down in the test chamber 1 as much as possible.
The detailed implementation mode is ten: in the present embodiment, the volatilization rate and the volatilization level of the harmful substances of the decoration materials are shown in fig. 1 to 4, and dry materials such as floors, artificial boards, carpets, wallpaper, etc., and wet materials such as adhesives, interior wall paints, etc. are arranged inside the housing 11.
It should be noted that, in the above embodiments, as long as the technical solutions can be aligned and combined without contradiction, those skilled in the art can exhaust all possibilities according to the mathematical knowledge of the alignment and combination, and therefore, the present invention does not describe the technical solutions after alignment and combination one by one, but it should be understood that the technical solutions after alignment and combination have been disclosed by the present invention.
This embodiment is only illustrative of the patent and does not limit the scope of protection thereof, and those skilled in the art can make modifications to its part without departing from the spirit of the patent.
Claims (8)
1. The utility model provides a decorative finishing material harmful substance rate of volatilizing and the level display device that volatilizees which characterized in that: the device comprises a test chamber (1), a heating plate (2), an indoor air pollutant treatment system (3), a temperature display and control device (4) and a temperature sensor (5), wherein a plurality of sampling ports (15) are machined in the side wall of the test chamber (1), the heating plate (2) and the indoor air pollutant treatment system (3) are arranged in the test chamber (1), the heating plate (2) and the temperature sensor (5) are electrically connected with the temperature display and control device (4), and the temperature sensor (5) is arranged in the test chamber (1);
the test chamber (1) comprises a shell (11), an insulating layer (12), a simulation door (13), a simulation window (14), a sample attaching glass plate (16) and a fan (17), wherein the insulating layer (12) is arranged outside the shell (11), the simulation door (13) and the simulation window (14) are respectively installed on the front side wall and the rear side wall of the shell (11), a plurality of sampling ports (15) are respectively arranged on the front side wall and the rear side wall of the shell (11), heating plates (2) are installed on the lower inner wall and the rear side inner wall of the shell (11), the sample attaching glass plate (16) is installed on the left side inner wall and the right side inner wall of the shell (11) through buckles, the fan (17) is installed on the upper inner wall of the shell (11), an indoor air pollutant treating system (3) is arranged inside the shell (11), and the fan (17) is electrically connected with a temperature display and control device (4);
the indoor air pollutant treatment system (3) comprises an outer shell (31), a filter screen (32), an air pump (33), a rubber tube (34), an air head (35), activated carbon (36), an X-shaped molecular sieve (37), a water culture plant (38) and a culture solution (39), the utility model provides a culture solution (39) is filled to shell body (31) inside has a recess (311), recess (311) are filled with culture solution (39), air pump (33) are through culture solution (39) intercommunication in pipeline and recess (311), shell body (31) internally mounted has two-layer filter screen (32), install on shell body (31) air pump (33), air head (35) are through rubber tube (34) and air pump (33) intercommunication installation, air head (35) set up between two-layer filter screen (32), be provided with activated carbon (36) and X type molecular sieve (37) between two-layer filter screen (32), be provided with water planting plant (38) in culture solution (39).
2. The apparatus for demonstrating volatilization rate and volatilization level of harmful substances of decoration and finishing material according to claim 1, wherein: the heating plate (2) comprises a heat conduction plate and an electric heating pipe (18), and the electric heating pipe (18) is installed between the heat conduction plate and the lower inner wall and the rear inner wall of the shell (11).
3. The apparatus for displaying volatilization rate and volatilization level of harmful substances in decoration and finishing material according to claim 1, wherein: the nutrient solution (39) comprises rhizobia, a phenolic reagent and a nutrient solution.
4. A device for displaying a volatilization rate and a volatilization level of a hazardous substance of a decorative material according to any one of claims 1 to 3, which comprises the following steps:
step a, after a wet material is coated on the surface of a sample attached glass plate (16), the sample attached glass plate is placed at the temperature of 23-28 ℃ and dried and cured for 1-3 days in a well ventilated environment until the wet material is dried and solidified;
b, mounting the sample attaching glass plates (16) placed in the step a on the inner walls of the left side and the right side of the shell (11);
c, controlling the adjusting fan (17) and the heating plate (2) through the temperature display and control device (4) to enable the internal temperature of the test chamber (1) to simulate indoor heating conditions in a cold region;
step d, connecting a sampling port (15) with an external air sampling pump, collecting air samples in the test chamber (1) according to a certain time interval, designing dense sampling points at the initial stage, prolonging the sampling interval at the later stage, analyzing VOCs (volatile organic compounds) gas in the sampled air in the chamber by using a gas chromatograph or a gas-mass spectrometer after the samples are collected, analyzing the concentration of formaldehyde by using an ultraviolet spectrophotometer by using a phenol reagent method, and obtaining data for displaying and recording;
e, the total sampling time of the step d is 10-12 hours, the simulation door (13) and the simulation window (14) are opened after 10-12 hours, an external air sampling pump collects the air sample in the test chamber (1) again, after the sample is collected, a gas chromatograph or a gas-mass spectrometer is used for analyzing the VOCs gas in the sampled air in the chamber, and an ultraviolet spectrophotometer is used for analyzing the formaldehyde concentration by using a phenol reagent method to obtain data for displaying and recording;
and f, after the step e lasts for 4-5 hours, closing the simulation door (13) and the simulation window (14), pumping the air in the test chamber (1) into the indoor air pollutant treatment system (3) by using the air pump (33) for adsorption and filtration, simultaneously, collecting the air sample in the test chamber (1) again by using the external air sampling pump, after the sample is collected, analyzing the VOCs gas in the sampled air in the chamber by using a gas chromatograph or a gas-mass spectrometer, analyzing the formaldehyde concentration by using an ultraviolet spectrophotometer by using a phenol reagent method, and obtaining data for displaying and recording until the air in the test chamber (1) reaches the living standard.
5. A device for displaying the volatilization rate and the volatilization level of harmful substances in a decorative and finishing material according to claim 3, wherein: the hydroponic plants (38) are chlorophytum comosum and scindapsus aureus, and the phenol reagent is a formaldehyde absorbent.
6. The apparatus for displaying volatilization rate and volatilization level of harmful substances in decoration and finishing material according to claim 1, wherein: the shell (11) is a color steel plate shell, and the simulation door (13) and the simulation window (14) are plastic steel doors and windows.
7. The apparatus for displaying volatilization rate and volatilization level of harmful substances in decoration and finishing material according to claim 1, wherein: the temperature sensors (5) are distributed in the shell (11) up and down.
8. The apparatus for displaying volatilization rate and volatilization level of harmful substances in decoration and finishing material according to claim 1, wherein: the interior of the shell (11) is provided with a floor, a veneer, a carpet, wallpaper, an adhesive or an inner wall coating.
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| CN112630105A (en) * | 2020-12-09 | 2021-04-09 | 中山赛特奥日用科技有限公司 | Evaporation method for simulating actual volatilization of electrical heating fragrance product |
| CN113877651A (en) * | 2021-10-20 | 2022-01-04 | 黑龙江省木材科学研究所 | Electric heating device for simulating ground radiation heating |
| CN114062206A (en) * | 2021-10-29 | 2022-02-18 | 上海理工大学 | Multifunctional indoor thermal environment simulation experiment platform |
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