CN222105341U - Indoor pollution in-situ detection device - Google Patents
Indoor pollution in-situ detection device Download PDFInfo
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- CN222105341U CN222105341U CN202420504984.6U CN202420504984U CN222105341U CN 222105341 U CN222105341 U CN 222105341U CN 202420504984 U CN202420504984 U CN 202420504984U CN 222105341 U CN222105341 U CN 222105341U
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- 238000001514 detection method Methods 0.000 title claims abstract description 44
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 36
- 230000007613 environmental effect Effects 0.000 claims abstract description 74
- 239000000463 material Substances 0.000 claims abstract description 63
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 238000010521 absorption reaction Methods 0.000 claims abstract description 10
- 229920001296 polysiloxane Polymers 0.000 claims description 45
- 238000001914 filtration Methods 0.000 claims description 17
- 238000011109 contamination Methods 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 claims description 3
- 239000011324 bead Substances 0.000 claims 1
- 239000003344 environmental pollutant Substances 0.000 abstract description 44
- 231100000719 pollutant Toxicity 0.000 abstract description 44
- 238000005070 sampling Methods 0.000 abstract description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 16
- 239000000741 silica gel Substances 0.000 description 16
- 229910002027 silica gel Inorganic materials 0.000 description 16
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- 238000005034 decoration Methods 0.000 description 5
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003908 quality control method Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005183 environmental health Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
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Abstract
本实用新型涉及一种室内污染原位检测装置。该装置包括吸气瓶，内装空气过滤载体，用以吸收空气并过滤；环境舱，内部具有舱室，罩设于被测材料，一端与吸气瓶连接吸收过滤后的空气；加热薄膜，贴于环境舱外表面和内表面；收集瓶，内装吸收载体，与环境舱连接，用以收集环境舱内混合的气体；恒流采样器，与收集瓶连接，提供动力使收集瓶收集指定的混合气体。上述室内污染原位检测装置，将洁净空气与被测材料散发的污染物混合后导入收集瓶后被吸收载体吸收，采用分光光度计或气相色谱仪检测分析吸收到的污染物含量，根据采样时间、采样流量计算不同被测材料的污染物散发率，完成对室内污染的原位检测。
The utility model relates to an indoor pollution in-situ detection device. The device includes an air suction bottle with an air filter carrier installed inside, which is used to absorb and filter air; an environmental chamber with a cabin inside, which is covered on the material to be tested and one end of which is connected to the air suction bottle to absorb the filtered air; a heating film, which is attached to the outer surface and the inner surface of the environmental chamber; a collecting bottle with an absorption carrier installed inside, which is connected to the environmental chamber to collect the mixed gas in the environmental chamber; a constant current sampler, which is connected to the collecting bottle and provides power to enable the collecting bottle to collect the specified mixed gas. The above-mentioned indoor pollution in-situ detection device mixes clean air with pollutants emitted by the material to be tested, and then introduces them into the collecting bottle and is absorbed by the absorption carrier. A spectrophotometer or a gas chromatograph is used to detect and analyze the content of the absorbed pollutants, and the pollutant emission rates of different materials to be tested are calculated according to the sampling time and the sampling flow rate, so as to complete the in-situ detection of indoor pollution.
Description
Technical Field
The utility model relates to the field of pollution detection, in particular to an indoor pollution in-situ detection device.
Background
The pollution of the interior decoration of the building is ubiquitous, the chemical pollution mainly comes from the emission of the decoration materials, the types of the interior decoration materials are various, the mobile sampling is difficult, and the damage sampling cost is high.
Generally, aiming at the problem of exceeding standard of chemical pollution in the acceptance stage, an air treatment means is adopted, but due to the lack of a portable and effective traceability detection method, the determination of an emission source on an engineering site is relatively difficult, so that the quality control level of products on the engineering site is lower.
Disclosure of utility model
Based on the above, it is necessary to provide an in-situ detection device for indoor pollution, which can not only detect whether the environmental protection performance of the warehouse-in product is consistent with that of the field product, but also identify building material products with high emission level by comparing the emission rates of different decoration materials under the same conditions.
An in-situ detection device for indoor pollution, comprising:
1. An in-situ detection device for indoor pollution, comprising:
the air suction bottle is internally provided with an air filtering carrier for absorbing air and filtering;
The environment cabin is internally provided with a cabin, is covered on the tested material, and one end of the environment cabin is connected with the air suction bottle to absorb the filtered air;
Heating films attached to the outer surface and the inner surface of the environmental chamber;
the collecting bottle is internally provided with an absorption carrier and is connected with the environmental cabin to collect the mixed gas in the environmental cabin;
And the constant-flow sampler is connected with the collecting bottle and provides power to enable the collecting bottle to collect the specified mixed gas.
In one embodiment, the apparatus further comprises a fan mounted inside the environmental chamber.
In one embodiment, the device further comprises a temperature control instrument mounted on the top of the environmental chamber for controlling the heating temperature of the heating film.
In one embodiment, the device further comprises a circular silica gel strip sealed between the bottom of the environmental chamber and the material to be tested.
In one embodiment, the device further comprises a thermocouple mounted inside the environmental chamber for monitoring the temperature of the air in the environmental chamber.
In one embodiment, the apparatus further comprises a gas pump mounted between the gas cylinder and the environmental chamber, the gas pump providing power to direct filtered air into the environmental chamber.
In one embodiment, the device further comprises a first silicone tube, a fourth silicone tube and a fifth silicone tube, one end of the first silicone tube is located in the air filtering carrier of the air suction bottle, the other end of the first silicone tube extends out of the opening of the air suction bottle, one end of the fourth silicone tube is connected with the environmental chamber, the other end of the fourth silicone tube is connected with the collecting bottle and extends into the absorbing carrier, one end of the fifth silicone tube is connected with the constant-current sampler, and the other end of the fifth silicone tube is located in the collecting bottle and outside the absorbing carrier.
In one embodiment, the device further comprises a second silicone tube and a third silicone tube, one end of the second silicone tube is connected with the gas pump, the other end of the second silicone tube is located in the air suction bottle and higher than the air filtering carrier in the bottle, one end of the third silicone tube is connected with the gas pump, and the other end of the third silicone tube is connected with the environmental chamber.
Above-mentioned indoor pollution normal position detection device, locate the material of survey with the environmental chamber cover, use the bottle of breathing in with indoor air suction bottle in through the filtration of air filtration carrier for clean air, clean air gets into the environmental chamber after mixing with the pollutant that the material was surveyed and gives off, use the inside air of heating film heating to improve the pollutant emission rate on material surface of survey simultaneously, set up sampling time and sampling flow with the constant current sampler, the gaseous after mixing is got into the collecting bottle under the effect of constant current sampler according to preset flow and time and is absorbed by the absorption carrier, use spectrophotometer or gas chromatograph to carry out quantitative analysis to the pollutant of collecting, obtain the pollutant emission rate of material of survey. Multiplying the emission rate obtained by in-situ detection of different materials to be detected by the total area of the corresponding different materials to be detected in the room to obtain total pollutants emitted in different materials to be detected in the room in unit time, comparing the total pollutant amounts emitted in different materials in the room in unit time, determining the main indoor pollution source, and carrying out targeted treatment on the pollution source to protect the living environment health.
Drawings
In order to more clearly illustrate the utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an in-situ indoor pollution detection device according to the present embodiment;
fig. 2 is a schematic flow chart of the in-situ indoor pollution detection device in this embodiment.
Reference numerals:
110. The device comprises an air suction bottle, 120 parts of an environmental chamber, 130 parts of a heating film, 140 parts of a collecting bottle, 150 parts of a constant-current sampler, 210 parts of a fan, 220 parts of a temperature control instrument, 230 parts of a circular silica gel strip, 240 parts of a thermocouple, 250 parts of a gas pump, 310 parts of a first silica gel strip, 320 parts of a second silica gel strip, 330 parts of a third silica gel strip, 340 parts of a fourth silica gel strip, 350 parts of a fifth silica gel strip, 40 parts of a measured material, 41 parts of a power supply.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and the like are used in the description of the present utility model for the purpose of illustration only and do not represent the only embodiment.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" on a second feature may be that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through intermedial media. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely under the second feature, or simply indicating that the first feature is less level than the second feature.
Unless defined otherwise, all technical and scientific terms used in the specification of the present utility model have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used in the description of the present utility model includes any and all combinations of one or more of the associated listed items.
Aiming at the problem of excessive chemical pollution in the acceptance stage, an air treatment method is often adopted, and due to the lack of a convenient and effective traceability detection method, a key emission source is difficult to determine on an engineering site, the source of air peculiar smell is ambiguous, a broad-spectrum treatment method is generally adopted, pertinence is lacked, and the actual effect is not obvious. In general, the actual engineering progress is strict in time node control, the on-site furniture materials are inconvenient to disassemble and move, and the emission performance detection of the materials in a laboratory environment cabin for 7-14 days is difficult to meet the requirements of actual engineering, so that a rapid and effective detection device is lacking, and the quality control level of engineering on-site products is often low. Based on the problem, there is a need to develop an in-situ detection technology to check whether the environmental protection performance of the warehouse-in product is consistent with that of the approach product, and compare the emission rates of different decoration materials under the same conditions by the technology, so as to identify building material products with high emission levels.
The in-situ indoor contamination detection apparatus of the present utility model will be described with reference to fig. 1 to 2.
As shown in FIG. 1, in one embodiment, an in-situ detection device for indoor contamination includes a gas cylinder 110, an environmental chamber 120, a heating film 130, a collection bottle 140, and a constant flow sampler 150.
The air suction bottle 110 houses an air filtering carrier for absorbing and filtering air, preferably, the air filtering carrier filters formaldehyde in the air using a phenol reagent solution and TVOC (Total Volatile Organic Compounds) in the air using activated carbon.
The environmental chamber 120 has a chamber inside, covers the material to be tested, and has one end connected to the suction bottle 110 to absorb the filtered air. The environmental chamber 120 uses a miniature environmental chamber, has small volume and light weight, and meets the portable requirement.
The heating film 130 is attached to the outer surface and the inner surface of the environmental chamber 120.
The collection bottle 140 is filled with an absorption carrier and connected with the environmental chamber 120 to collect the mixed gas in the environmental chamber 120. Preferably, the absorption carrier uses a phenol reagent solution which can react with formaldehyde pollutant in a color development way, and the absorption carrier can also use a Tenax tube which is used for absorbing and enriching TVOC emitted by the tested material.
And the constant flow sampler 150 is connected with the collecting bottle 140 and provides power to enable the collecting bottle 140 to collect the specified mixed gas.
Specifically, the environmental chamber 120 is covered above the measured material 40, the heating film 130 is used to heat the interior of the environmental chamber 120, so as to accelerate the emission rate of pollutants, and the pollutants emitted by the measured material 40 are collected in the cavity of the environmental chamber 120. The air suction bottle 110 absorbs indoor air and filters the sucked air through a filtering carrier such as a phenol reagent solution and the like, and then the filtered clean air from the air suction bottle 110 and pollutants emitted from the measured material 40 are mixed in the cavity of the environmental chamber 120. The constant-flow sampler 150 is used as an air pump to supply power to the mixed gas in the environmental chamber 120 to the collection bottle 140, the sampling flow and the sampling time can be preset, the 150 enables the mixed gas in the environmental chamber 120 to enter the collection bottle 140 at a constant flow through the adjusting valve, the constant-flow sampler 150 stops running after the preset time is reached, the collection bottle 140 is taken out, the collected pollutants are quantitatively analyzed by using a spectrophotometer or a gas chromatograph, the pollutant content released by the measured material in unit time is calculated, and the pollutant emission rate of the measured material is obtained, see fig. 2. Multiplying the emission rate obtained by in-situ detection of different materials to be detected by the total area of the corresponding different materials to be detected in the room to obtain total pollutants emitted in different materials to be detected in the room in unit time, comparing the total pollutant amounts emitted in different materials in the room in unit time, and determining the main indoor pollution source.
In-situ detection device for indoor pollution in this embodiment, the air suction bottle 110 is used to filter air and the environmental chamber 120 is used to isolate air, so that the interference of external environment to detection results is eliminated, the heating film 130 is used to accelerate the pollutant dispersion rate of the detected material, the constant-current sampler 150 is used to control the gas collection time and flow, the spectrophotometer or the gas chromatograph is used to detect different collecting bottles 140 to determine the pollutant dispersion rate of different materials, the in-situ detection of indoor pollution is completed, the material with larger pollutant dispersion rate is processed in a targeted manner, and the cleanness of the indoor environment is ensured.
In this embodiment, the apparatus further comprises a fan 210, the fan 210 being mounted inside the environmental chamber 120. The apparatus further comprises a temperature control device 220, wherein the temperature control device 220 is installed on the top of the environmental chamber 120 to control the heating temperature of the heating film 130. The device also comprises a circular silica gel strip 230, and the circular silica gel strip 230 is sealed between the bottom of the environmental chamber 120 and the tested material. The apparatus further includes a thermocouple 240 mounted inside the environmental chamber 120 for monitoring the temperature of the air in the environmental chamber 120. The apparatus further includes a gas pump 250, the gas pump 250 being mounted between the suction bottle 110 and the environmental chamber 120 to provide power to direct filtered air into the environmental chamber 120. The top of the device is also provided with a power source 41 to power the device.
Specifically, the environmental chamber 120 is sealed above the measured material 40 by the annular silica gel strip 230, the air pump 250 is started to suck clean air in the air suction bottle 110 and then convey the air to the environmental chamber 120, the fan 210, the temperature control instrument 220 and the thermocouple 240 are started, the clean air and pollutants emitted by the measured material 40 are accelerated and mixed in the environmental chamber 120 by the fan 210, the temperature of the air in the chamber is detected by the thermocouple 240, and the constant-current sampler 150 is started to collect the mixed air when the temperature of the air in the chamber reaches a required degree.
The indoor pollution in-situ detection device of the embodiment uses the annular silica gel strip 230 to seal the environmental chamber 120 and the detected material 40, not only eliminates the interference of external air on the detection result, but also enables the device to be convenient to detach and move, uses the gas pump 250 as a power device to discharge clean air into the environmental chamber 120, overcomes the along-way resistance of the filtered air entering the environmental chamber 120 from the gas suction bottle 110, uses the fan 210 to accelerate mixing of pollutants of the detected material 40 and the clean air, uses the temperature control instrument 220 to control the heating film 130 to heat the interior of the environmental chamber 120, monitors the temperature of the mixed gas through the thermocouple 240, and then starts the constant-current sampler 150 to convey the mixed gas to the collection bottle 140 to finish sampling of the pollutants when the temperature reaches a required degree.
In this embodiment, the device further includes a first silicone tube 310, a fourth silicone tube 340, and a fifth silicone tube 350, where one end of the first silicone tube 310 is located in the air filtering carrier of the air suction bottle 110, the other end extends out of the bottle mouth of the air suction bottle 110, one end of the fourth silicone tube 340 is connected to the environmental chamber 120, the other end is connected to the collection bottle 140 and extends into the absorption carrier, one end of the fifth silicone tube 350 is connected to the constant current sampler 150, and the other end is located in the collection bottle 140 and outside the absorption carrier. The device also comprises a second silicone tube 320 and a third silicone tube 330, wherein one end of the second silicone tube 320 is connected with the gas pump 250, the other end of the second silicone tube is positioned in the bottle of the gas suction bottle 110 and higher than the air filtering carrier in the bottle, one end of the third silicone tube 330 is connected with the gas pump 250, and the other end of the third silicone tube 330 is connected with the environmental chamber 120.
In the above-mentioned indoor pollution in-situ detection device, the environmental chamber 120 is fixed above the measured material 40 by using the circular silica gel strip 230, the air pump 250 is started to absorb clean air to the air suction bottle 110 through the second silica gel strip 320, the air in the air suction bottle 110 is sucked out, the air pressure is reduced, and the external air enters the air suction bottle 110 through the first silica gel strip 310 due to the air pressure difference and filters pollutants in the air filtering carrier of the air suction bottle 110 to become clean air. Clean air is sucked by the air pump 250 and then enters the air inlet of the environmental chamber 120 through the third silicone tube 330, the temperature control instrument 220 is used for setting a required temperature to drive the heating film 130 to heat the interior of the environmental chamber 120, the emission of pollutants of the tested material 40 is accelerated, the fan 210 driven by the battery 41 is used for accelerating the mixing of the pollutants in the environmental chamber 120 and the clean air, the temperature of the air in the environmental chamber 120 is detected through the thermocouple 240, and when the temperature in the environmental chamber 120 reaches the required temperature, the constant-current sampler 150 is started to convey the mixed air to the collecting bottle 140 through the fourth silicone tube 340. The gas remained after the pollutant in the mixed gas is absorbed by the absorbing carrier is absorbed by the constant-current sampler 140 through the fifth silica gel tube 350, the pressure of the gas in the collecting bottle 140 is reduced after the gas is absorbed by the constant-current sampler 150 and forms pressure difference with the inside of the environmental chamber 120, the mixed gas in the environmental chamber 120 enters the absorbing carrier of the collecting bottle 140 through the fourth silica gel tube 340 connected with the air outlet of the environmental chamber 120 under the action of the pressure, the collected pollutant is quantitatively analyzed by using a spectrophotometer or a gas chromatograph, the pollutant emission rate of the measured material is obtained, the emission rate obtained by in-situ detection of different measured materials is multiplied by the total area of the corresponding different measured materials in the room, the total pollutant emitted in the room in unit time of the different measured materials is obtained, the total pollutant amount emitted in the room in unit time of the different materials is compared, the main indoor pollution source is determined, and the targeted treatment is carried out on the pollution source so as to protect the environmental health.
The indoor pollution in-situ detection device of the embodiment uses the micro environment cabin 120 and is provided with a battery power supply, so that the indoor pollution in-situ detection device is convenient to use and easy to carry. The unification of the variables is completed by controlling the surface temperature of the measured material 40, the constant flow rate of the sampled gas and the constant sampling time, and finally the pollutant emission rate of the measured material is calculated by detecting the collecting bottle 140, so that the area with larger pollutant emission rate is cleaned in a targeted manner.
As shown in fig. 2, an in-situ detection method for indoor pollution is applied to the in-situ detection device for indoor pollution, and includes:
The environmental chamber 120 is covered on the measured material 40, the air filtered by the air suction bottle 110 and the pollutant emitted by the measured material 40 are mixed in the environmental chamber 120, the constant sample is collected by the collecting bottle 140 through the constant flow sampler 150 preset sampling flow and sampling time, the collected pollutant is quantitatively analyzed by using a spectrophotometer or a gas chromatograph, and the pollutant content emitted by the measured material 40 in unit time is calculated. The method further comprises the steps of multiplying the emission rate obtained by in-situ detection of different detected materials 40 by the total area of the corresponding different detected materials 40 in the room to obtain total pollutants emitted in unit time of the different detected materials 40 in the room, comparing the total pollutant amounts emitted in unit time of the different materials in the room, and determining the main indoor pollution source.
In the indoor pollution in-situ detection method of the embodiment, the constant flow rate and sampling time are set through the constant flow sampler 150 to control the collection bottle 140 to collect constant gas so as to complete the control of variables. The collected pollutants are quantitatively analyzed by using a spectrophotometer or a gas chromatograph, the pollutant emission quantity of the measured material 40 in unit area in unit time, namely the pollutant emission rate of the measured material, is calculated, the emission rate obtained by in-situ detection of different measured materials is multiplied by the total area of the corresponding different measured materials in the room, the total pollutants emitted in the different measured materials in unit time in the room are obtained, the total pollutant quantity emitted in the different measured materials in unit time in the room is compared, and the indoor main pollution source is determined.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the utility model and are described in detail herein without thereby limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (8)
1. An in-situ detection device for indoor pollution, comprising:
the air suction bottle is internally provided with an air filtering carrier for absorbing air and filtering;
The environment cabin is internally provided with a cabin, is covered on the tested material, and one end of the environment cabin is connected with the air suction bottle to absorb the filtered air;
Heating films attached to the outer surface and the inner surface of the environmental chamber;
the collecting bottle is internally provided with an absorption carrier and is connected with the environmental cabin to collect the mixed gas in the environmental cabin;
And the constant-flow sampler is connected with the collecting bottle and provides power to enable the collecting bottle to collect the specified mixed gas.
2. The in-situ indoor contamination detection apparatus of claim 1, further comprising a fan mounted inside the environmental chamber.
3. The in-situ indoor contamination detection apparatus of claim 1, further comprising a temperature control instrument mounted on top of the environmental chamber for controlling a heating temperature of the heating film.
4. The in-situ indoor contamination detection apparatus of claim 1, further comprising an annular bead of silicone sealed between the environmental chamber bottom and the material under test.
5. The in-situ indoor contamination detection apparatus of claim 1, further comprising a thermocouple mounted inside the environmental chamber for monitoring the temperature of air within the environmental chamber.
6. The in-situ indoor contamination detection apparatus of claim 1, further comprising a gas pump mounted between the gas cylinder and the environmental chamber, the gas pump providing power to direct filtered air into the environmental chamber.
7. The in-situ indoor contamination detection device according to claim 1, further comprising a first silicone tube, a fourth silicone tube and a fifth silicone tube, wherein one end of the first silicone tube is located in the air filtering carrier of the air suction bottle, the other end of the first silicone tube extends out of the mouth of the air suction bottle, one end of the fourth silicone tube is connected with the environmental chamber, the other end of the fourth silicone tube is connected with the collecting bottle and extends into the absorbing carrier, one end of the fifth silicone tube is connected with the constant current sampler, and the other end of the fifth silicone tube is located in the collecting bottle and outside the absorbing carrier.
8. The in-situ indoor contamination detection device according to claim 6, further comprising a second silicone tube and a third silicone tube, wherein one end of the second silicone tube is connected with the gas pump, the other end of the second silicone tube is located in the air suction bottle and higher than the air filtering carrier in the bottle, one end of the third silicone tube is connected with the gas pump, and the other end of the third silicone tube is connected with the environmental chamber.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202420504984.6U CN222105341U (en) | 2024-03-15 | 2024-03-15 | Indoor pollution in-situ detection device |
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| CN202420504984.6U CN222105341U (en) | 2024-03-15 | 2024-03-15 | Indoor pollution in-situ detection device |
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| CN222105341U true CN222105341U (en) | 2024-12-03 |
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