A system and method for simulating detection and evaluation of indoor environmental pollution

Abstract

The present invention discloses a system and method for simulating detection and evaluation of indoor environmental pollution, which belongs to the field of indoor environmental detection technology. The system includes an outer cabin provided with a cabin door, an inner cabin provided with a door opening, the inner cabin is arranged in the outer cabin, the inner side of the inner cabin inner wall is provided with a detachable decoration inner wall layer for coating decoration surface materials, a constant temperature and humidity air conditioning system, the constant temperature and humidity air conditioning system is respectively connected with the outer cabin and the inner cabin, and is used for ventilating fresh air into the cabin and controlling and adjusting the temperature and humidity in the cabin, and a telescopic sampling tube, the sampling tube is telescopically arranged and connected with the outer cabin and the inner cabin, and is used for sampling the air in the cabin. The system and method provided by the present invention can simulate the detection and evaluation of indoor environmental pollution in various links, decoration materials, etc. in the whole decoration process.

Description

Technical Field

[0001] The invention belongs to the technical field of indoor environment detection, and in particular relates to an indoor environment pollution simulation detection and evaluation system and method. Background Art

[0002] At present, the indoor environmental pollution control of fully decorated residential buildings is carried out in accordance with GB 50325-2020 "Standard for Indoor Environmental Pollution Control of Civil Buildings". After the decoration is completed and before the completion and delivery acceptance, the indoor environmental pollutant concentration is tested according to the sampling ratio specified in the standard, such as formaldehyde, benzene, TVOC (total volatile organic compounds), etc. The standard also carries out relevant control on the materials used in the early stage. For example, the formaldehyde emission test and retest are required before the artificial board enters the site, and the coatings, adhesives, etc. need to be tested for the content of pollutants such as formaldehyde and VOC, and can only be used after passing the test. However, according to the actual situation of our test, there are still a lot of excessive indoor environmental pollution when the fully decorated delivery is completed and accepted. If the standard is exceeded, the best solution is ventilation, which requires a lot of time and cost, or to control the concentration of pollutants, but it requires capital cost, and the control effect is uncertain or it will cause secondary pollution and other problems. These will have adverse effects on users and cause certain social contradictions.

[0003] Although indoor material design and material pollution control were carried out in the early stage, the superposition effect of material usage on pollutants and the construction process during the construction process and other factors will still cause the indoor environmental pollutant concentration to exceed the standard. The current on-site inspection and re-inspection of materials and the final indoor environmental pollution detection cannot evaluate the pollutant concentration of the entire decoration process, resulting in the inability to trace the source of pollutants after exceeding the standard. And because the cost of solving this problem later is high, a fully decorated residential indoor environmental pollution simulation detection and evaluation system is urgently needed to solve these problems. This evaluation system can detect and evaluate the contribution of indoor environmental pollutant concentrations from various links such as decoration materials, construction process, and completion delivery, and timely understand the source and release status of each pollutant. Through the final pollutant concentration test, it reflects the indoor environmental pollution status after large-scale application of actual projects, avoiding various negative social impacts caused by excessive indoor environmental pollution. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide an indoor environmental pollution simulation detection and evaluation system and method, which can simulate the detection of indoor environmental pollution in a fully decorated room and can perform pollutant concentration sampling and detection throughout the entire process or at any time point or at any process node from the aspects of the decoration process and decoration materials.

[0005] To achieve the above object, the present invention is implemented by adopting the following technical solutions:

[0006] In a first aspect, the present invention provides an indoor environmental pollution simulation detection and evaluation system, characterized in that it includes:

[0007] An outer cabin with a hatch is provided.

[0008] An inner cabin with a door opening is provided, the inner cabin is arranged in the outer cabin, and a detachable decorative inner wall layer for coating decorative surface materials is installed on the sides and top surface of the inner wall of the inner cabin.

[0009] A constant temperature and humidity air conditioning system, which is connected to the outer cabin and the inner cabin respectively, and is used to ventilate the cabin with fresh air and control the temperature and humidity in the cabin.

[0010] A telescopic sampling tube is telescopically arranged to be connected to the outer cabin and the inner cabin, and is used for sampling the air in the cabin.

[0011] Furthermore, a plurality of fixed connectors evenly arranged in a matrix are provided on the sides and top surface of the inner wall of the inner cabin, and a light steel keel in a grid pattern is fixedly installed on the fixed connectors, and a plurality of the decorated inner wall layers are detachably installed on the light steel keel.

[0012] Furthermore, the material of the decoration inner wall layer is stainless steel inorganic material; the distance between the decoration inner wall layer and the inner wall of the inner cabin is 10 to 15 cm.

[0013] Furthermore, the outer cabin floor of the outer cabin and the inner cabin floor of the inner cabin are both made of stainless steel mirror floor for paving floor or carpet materials, and at least one group of closed windows is installed on the side of the inner cabin opposite to the door opening.

[0014] Furthermore, the door opening is sealed with a polyethylene plastic film or is installed with a hatch.

[0015] Furthermore, the constant temperature and humidity air conditioning system includes an external cabin fresh air air conditioning system and an internal cabin fresh air air conditioning system.

[0016] The outer cabin fresh air air conditioning system comprises an outer cabin constant temperature and humidity air conditioning fresh air exchanger, an outer cabin air conditioning air supply duct, an outer cabin air filter, an outer cabin air conditioning air inlet and an outer cabin air conditioning return air outlet, which are sequentially connected in the air inlet direction, and the outer cabin air conditioning air inlet and the outer cabin air conditioning return air outlet are respectively opened on different sides of the outer cabin;

[0017] The inner cabin fresh air air conditioning system includes an inner cabin constant temperature and humidity air conditioning fresh air exchanger, an inner cabin air conditioning air supply duct, an inner cabin air filter, an inner cabin air conditioning air inlet and an inner cabin air conditioning return air outlet which are sequentially connected according to the air inlet direction. The inner cabin air conditioning air supply duct is sealed and penetrated through the side of the outer cabin, and the inner cabin air conditioning air inlet and the inner cabin air conditioning return air outlet are respectively opened on different sides of the inner cabin.

[0018] In a second aspect, the present invention provides a simulation detection and evaluation method of the indoor environmental pollution simulation detection and evaluation system according to the first aspect, comprising the following steps:

[0019] Initializing and updating the removable decorative inner wall layer in the inner cabin, and sealing the door opening of the inner cabin with a polyethylene plastic film;

[0020] The temperature and humidity of the outer cabin and the inner cabin are adjusted respectively, and when the temperature and humidity reach preset values, the inner cabin is ventilated with fresh air at least once;

[0021] Telescopically adjusting the inner tube opening of the sampling tube to extend to the middle area of ​​the inner cabin, sampling the air in the inner cabin, and analyzing to obtain the background value of the pollutant concentration in the inner cabin;

[0022] Turn off the constant temperature and humidity air conditioning system, retract the sampling tube to the outer cabin, open the sealed door opening, and paint or install the decoration materials on the inner wall layer and the bottom floor of the inner cabin according to the indoor decoration construction process in the actual project;

[0023] At any time point or decoration construction process node during the decoration process, the door opening of the inner cabin is sealed again with polyethylene plastic film, and the constant temperature and humidity air conditioning system is turned on to adjust the temperature and humidity of the outer cabin and the inner cabin and to ventilate with fresh air respectively. When the preset value requirements are reached, the inner tube mouth of the sampling tube is retracted and adjusted again to extend to the middle area of ​​the inner cabin, the air in the inner cabin is sampled, and the real-time value of the pollutant concentration of the inner cabin at the corresponding time point or process node is analyzed and recorded;

[0024] According to the background value of the pollutant concentration in the inner cabin and the real-time value at different time points, a pollutant concentration change curve is drawn to evaluate the change of the pollutant concentration in the inner cabin during the entire decoration process or at different time points or different process nodes.

[0025] Further, the following steps are included:

[0026] When the background value of the pollutant concentration in the inner cabin is measured to be greater than a preset threshold, the outer cabin air filter and the inner cabin air filter of the constant temperature and humidity air conditioning system are replaced respectively, and re-measured.

[0027] Further, the following steps are included:

[0028] Simulate different construction links in the process of indoor full decoration construction, and use different decoration materials in each construction link;

[0029] After the first construction link is completed, the temperature and humidity of the inner cabin and the outer cabin are adjusted and fresh air is exchanged, and air sampling is performed in the middle area of ​​the inner cabin through a telescopic sampling tube, and the real-time value of the pollutant concentration released by the decoration materials used in the first construction link is analyzed;

[0030] After the sampling is completed, the second construction link is continued and air sampling is performed after completion to obtain the real-time value of the pollutant concentration caused by the superposition of different decoration materials corresponding to the first construction link and the second construction link in the inner cabin;

[0031] Each construction link is carried out in sequence and air sampling is carried out until the entire decoration construction process is completed, so as to obtain the real-time value of the pollutant concentration caused by the superposition of different decoration materials corresponding to each completed construction link in the inner cabin.

[0032] Further, the following steps are included:

[0033] Simulate different construction links in the process of indoor full decoration construction, and use different decoration materials in each construction link;

[0034] After the nth construction link is completed, the temperature and humidity of the inner cabin and the outer cabin are adjusted and fresh air is exchanged, and air sampling is performed in the middle area of ​​the inner cabin through a telescopic sampling tube, and the real-time value of the concentration of pollutants released by the decoration materials used in the nth construction link is analyzed and obtained, wherein n is a positive integer, 1≤n≤N, and N is the total number of construction links in the whole decoration process;

[0035] Replacing the removable inner wall layer and the stainless steel mirror floor in the inner cabin, re-adjusting the inner cabin and the outer cabin to adjust the temperature and humidity and exchange fresh air, and telescopically adjusting the inner tube mouth of the sampling tube to extend to the middle area of ​​the inner cabin, sampling the air in the inner cabin and re-analyzing it to obtain the background value of the pollutant concentration in the inner cabin;

[0036] Then, the m-th construction link is simulated. After completion, the temperature and humidity of the inner cabin and the outer cabin are adjusted and fresh air is ventilated. Air sampling is carried out in the middle area of ​​the inner cabin through a telescopic sampling tube, and the real-time value of the pollutant concentration released by the decoration materials used in the m-th construction link is analyzed to obtain, wherein m is a positive integer, 1≤m≤N and m≠n.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] The indoor environmental pollution simulation detection and evaluation system and method provided by the present invention adopts an outer cabin and an inner cabin provided with a constant temperature and humidity air conditioning system to adjust the temperature, humidity and fresh air ventilation to simulate the indoor and outdoor environments, and a detachable decorative inner wall layer is provided on the inner wall of the inner cabin for installing or painting decorative surface materials simulating the full decoration process, etc., and a retractable sampling tube is used to sample, detect and evaluate the simulated environmental air in the inner cabin;

[0039] It can also conveniently realize the detection of pollutant concentrations in various links such as different construction techniques and different decoration materials during the simulated decoration process, so as to realize the changes in different pollutant concentrations corresponding to the entire decoration process, different process nodes, and different time nodes, thereby facilitating pollutant tracing, release status detection and tracking monitoring, thereby effectively reducing or avoiding indoor decoration environmental pollution, and providing an effective basis for actual indoor decoration design, construction, delivery and other plans. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a structural schematic diagram of an indoor environmental pollution simulation detection and evaluation system provided according to an embodiment of the present invention;

[0041] In the figure:

[0042] 1. Outer cabin; 2. Inner cabin; 3. Cabin door; 4. Door opening; 5. Outer cabin air conditioning air supply duct; 6. Inner cabin air conditioning air supply duct; 7. Outer cabin air filter; 8. Inner cabin air filter; 9. Outer cabin air conditioning air inlet; 10. Inner cabin air conditioning air inlet; 11. Outer cabin air conditioning return air vent; 12. Inner cabin air conditioning return air vent; 13. Constant temperature and humidity air conditioning outdoor unit; 14. Fresh air inlet; 15. Outer cabin constant temperature and humidity air conditioning fresh air exchanger; 16. Inner cabin constant temperature and humidity air conditioning fresh air exchanger; 17. Voltage-stabilized power supply; 18. Fixed connector; 19. Light steel keel; 20. Decorated inner wall layer; 21. Enclosed window; 22. Outer cabin floor; 23. Inner cabin floor; 24. Sampling port; 25. Sampling tube. DETAILED DESCRIPTION

[0043] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0044] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0045] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0046] like Figure 1 As shown, an indoor environmental pollution simulation detection and evaluation system is provided in an embodiment of the present invention, which can be applied to the detection and evaluation of indoor environmental pollutant concentrations in fully-decorated residences or offices, wherein the system includes an outer cabin 1, an inner cabin 2, a constant temperature and humidity air-conditioning system and a telescopic sampling tube 25.

[0047] Among them, an outer cabin 1 with a cabin door 3 is provided, and the outer cabin 1 is used to simulate a stable outdoor environment where a residence is located, so as to better ensure the temperature, humidity, air cleanliness, etc. of the inner cabin 2. .

[0048] An inner cabin 2 with a door opening 4 is provided inside the outer cabin 1. The inner walls of the inner cabin 2 are surrounded by side surfaces and a top surface with a detachable decorative inner wall layer 20 for coating decorative surface materials, so as to simulate an indoor decoration environment.

[0049] In addition, the bottom floor of the interior cabin 2 is used for painting or installing floor and carpet finishing materials.

[0050] The door opening 4 can be sealed with a polyethylene plastic film or the hatch 3 can be installed at a suitable construction stage during the simulation of full decoration, thereby simulating an indoor decoration environment.

[0051] A constant temperature and humidity air conditioning system is connected to the outer cabin 1 and the inner cabin 2 respectively, and is used to ventilate the cabin with fresh air and control the temperature and humidity in the cabin.

[0052] Specifically, the constant temperature and humidity air-conditioning system includes an outer cabin fresh air air-conditioning system and an inner cabin fresh air air-conditioning system, each of which is independent of each other and is used to adjust the temperature, humidity and fresh air ventilation of the outer cabin 1 and the inner cabin 2 respectively.

[0053] Among them, the outer cabin fresh air air conditioning system includes an outer cabin constant temperature and humidity air conditioning fresh air exchanger 15, an outer cabin air conditioning air supply duct 5, an outer cabin air filter 7, an outer cabin air conditioning air inlet 9 and an outer cabin air conditioning return air outlet 11, which are connected in sequence according to the air inlet direction. The outer cabin air conditioning air inlet 9 and the outer cabin air conditioning return air outlet 11 are respectively opened on different sides of the outer cabin 1.

[0054] The inner cabin fresh air air conditioning system includes an inner cabin constant temperature and humidity air conditioning fresh air exchanger 16, an inner cabin air conditioning air supply duct 6, an inner cabin air filter 8, an inner cabin air conditioning air inlet 10 and an inner cabin air conditioning return air outlet 12 which are connected in sequence according to the air inlet direction. The inner cabin air conditioning air supply duct 6 is sealed and penetrated through the side of the outer cabin 1, and the inner cabin air conditioning air inlet 10 and the inner cabin air conditioning return air outlet 12 are respectively opened on different sides of the inner cabin 2, and air circulation is achieved through the inner cabin air conditioning return air outlet 12 and the outer cabin 1.

[0055] The above-mentioned external cabin constant temperature and humidity air conditioning fresh air exchanger 15 and internal cabin constant temperature and humidity air conditioning fresh air exchanger 16 are both provided with a fresh air inlet 14 and are connected to an external constant temperature and humidity air conditioning outdoor unit 13 .

[0056] The telescopic sampling tube 25 is telescopically arranged to penetrate and connect the outer cabin 1 and the inner cabin 2, and is used to sample the air in the cabin. Specifically, one end of the telescopic sampling tube 25 is a sampling port 24 outside the outer cabin 1, and the other end is an air inlet that penetrates the outer cabin 1 and the inner cabin 2 and can be telescopically arranged to the inner cabin 1 and the inner cabin 2.

[0057] In some embodiments, a plurality of fixed connectors 18 evenly arranged in a matrix are provided on the sides and top surface of the inner wall of the inner cabin 2, and a light steel keel 19 in a grid shape is fixedly installed on the fixed connector 18, and a plurality of decorative inner wall layers 20 are detachably installed on the light steel keel 19.

[0058] The decoration inner wall layer 20 is used to install or paint the decoration materials or materials used in the simulation of the full decoration process. The detachable type is convenient for reinstalling a new set of decoration inner wall layers 20 after simulating a full decoration pollutant detection and evaluation, so as to facilitate the next simulation detection; it is also convenient to replace a new set of decoration inner wall layers 20 to simulate the decoration material pollution situation of other construction processes after simulating the pollution situation of the decoration materials used in a certain construction process.

[0059] In order to make the simulated environment more accurate and reliable, the material of the decoration inner wall layer 20 is stainless steel inorganic material that does not produce pollution. In addition, mainly considering a construction space, the detachable decoration inner wall layer 20 should not be directly installed on the inner cabin wall, and the distance between the decoration inner wall layer 20 and the inner wall of the inner cabin 2 is 10 to 15 cm.

[0060] In order to better simulate interior decoration and living conditions, the outer cabin floor 22 of the outer cabin 1 and the inner cabin floor 23 of the inner cabin 2 are both made of stainless steel mirror floors, and at least one set of closed windows 21 is installed on the side wall of the inner cabin 2 opposite to the door opening 4.

[0061] In the above system, a voltage-stabilized power supply 17 is also provided for supplying power to various electrical devices.

[0062] On the other hand, an embodiment of the present invention further provides a simulation detection and evaluation method of the indoor environmental pollution simulation detection and evaluation system as above, which specifically includes the following steps:

[0063] Step S1: Initialize the simulation environment.

[0064] Initialize and update the removable decorative inner wall layer 20 in the inner cabin 2, and seal the door opening 4 of the inner cabin 2 with a polyethylene plastic film;

[0065] The temperature and humidity of the outer cabin 1 and the inner cabin 2 are adjusted respectively, and when the temperature and humidity reach the preset values, the inner cabin 2 is ventilated with fresh air at least once.

[0066] Step S2: Obtaining the background value of pollutant concentration.

[0067] The inner tube opening of the telescopically adjustable sampling tube 25 extends to the middle area of ​​the inner cabin 2 to sample the air in the inner cabin 2 and analyze to obtain the background value of the pollutant concentration in the inner cabin 2.

[0068] Step S3: Simulate the decoration construction process.

[0069] Turn off the constant temperature and humidity air conditioning system, retract the sampling tube 25 to the outer cabin 1, open the sealed door opening 4, and carry out decoration operations on the inner wall layer 20 and the bottom floor of the inner cabin 2 according to the interior decoration construction process in the actual project.

[0070] Step S4: Obtain the real-time value of pollutant concentration.

[0071] At any time point or at any node of the decoration construction process, the door opening 4 of the inner cabin 2 is sealed again with a polyethylene plastic film, and the constant temperature and humidity air conditioning system is turned on to adjust the temperature and humidity of the outer cabin 1 and the inner cabin 2 and to perform fresh air ventilation;

[0072] When the preset value requirement is reached, the inner tube mouth of the sampling tube 25 is retracted and adjusted again to extend to the middle area of ​​the inner chamber 2, the air in the inner chamber 2 is sampled, and the real-time value of the pollutant concentration in the inner chamber 2 at the corresponding time point or process node is analyzed and recorded.

[0073] Step S5: Pollutant concentration detection and analysis.

[0074] According to the background value of pollutant concentration in the inner cabin 2 and the real-time value at different time points, a pollutant concentration change curve is drawn to evaluate the change of pollutant concentration in the inner cabin 2 during the whole decoration process or at different time points or different process nodes.

[0075] In some embodiments, when the background value of the pollutant concentration in the inner cabin 2 is measured to be greater than a preset threshold, the outer cabin air filter 7 and the inner cabin air filter 8 of the constant temperature and humidity air conditioning system are replaced respectively, and re-measured.

[0076] In some embodiments, pollutant simulation detection and evaluation are performed in sequence according to different construction links during the construction process, and the superposition effect of different decoration materials in the whole process and the final pollutant concentration detection are analyzed, which specifically includes the following steps:

[0077] Simulate different construction links in the process of indoor full decoration construction, and use different decoration materials in each construction link;

[0078] After the first construction link is completed, the temperature and humidity of the inner cabin 2 and the outer cabin 1 are adjusted and fresh air is exchanged, and air sampling is performed in the middle area of ​​the inner cabin 2 through the telescopic sampling tube 25, and the real-time value of the pollutant concentration released by the decoration materials used in the first construction link is analyzed;

[0079] After the sampling is completed, the second construction link is continued and air sampling is performed after completion to obtain the real-time value of the pollutant concentration caused by the superposition of different decoration materials corresponding to the first construction link and the second construction link in the inner cabin 2;

[0080] Each construction link is carried out in sequence and air sampling is performed until the entire decoration construction process is completed, and the real-time value of the pollutant concentration caused by the superposition of different decoration materials corresponding to each completed construction link in the inner cabin 2 is obtained.

[0081] In some embodiments, according to the pollutant concentration caused by decoration materials in different construction links, the single influence of decoration materials in a single construction link is analyzed, so as to better trace the source of pollutants and detect the release status, which specifically includes the following steps:

[0082] Simulate different construction links in the process of indoor full decoration construction, and use different decoration materials in each construction link;

[0083] When the nth construction link is completed, the temperature and humidity of the inner cabin 2 and the outer cabin 1 are adjusted and fresh air is exchanged, and air sampling is performed in the middle area of ​​the inner cabin 2 through the telescopic sampling tube 25, and the real-time value of the pollutant concentration released by the decoration materials used in the nth construction link is analyzed and obtained, where n is a positive integer, 1≤n≤N, and N is the total number of construction links in the whole decoration process;

[0084] Update and replace the removable decorative inner wall layer 20 and the stainless steel mirror floor in the inner cabin 2, readjust the inner cabin 2 and the outer cabin 1 to adjust the temperature and humidity and fresh air ventilation, and extend the inner tube opening of the sampling tube 25 to the middle area of ​​the inner cabin 2, sample the air in the inner cabin 2 and re-analyze to obtain the background value of the pollutant concentration in the inner cabin 2;

[0085] Then, the m-th construction link is simulated. After completion, the temperature and humidity of the inner cabin 2 and the outer cabin 1 are adjusted and fresh air is exchanged. The air is sampled in the middle area of ​​the inner cabin 2 through the telescopic sampling tube 25, and the real-time value of the pollutant concentration released by the decoration materials used in the m-th construction link is analyzed, where m is a positive integer, 1≤m≤N and m≠n.

[0086] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An indoor environmental pollution simulation detection and evaluation system, characterized in that: include: An outer cabin with a hatch is provided. An inner cabin with a door opening is provided, the inner cabin is arranged in the outer cabin, and a detachable decorative inner wall layer for coating decorative materials is installed on the sides and top surface of the inner wall of the inner cabin. A constant temperature and humidity air conditioning system, which is connected to the outer cabin and the inner cabin respectively, and is used to ventilate the cabin with fresh air and control the temperature and humidity in the cabin. A telescopic sampling tube, which is telescopically arranged to be connected to the outer cabin and the inner cabin, and is used for sampling the air in the cabin; A plurality of fixed connecting members evenly arranged in a matrix are provided on the sides and top surface of the inner wall of the inner cabin, and a light steel keel in a grid shape is fixedly installed on the fixed connecting members, and a plurality of the decorative inner wall layers are detachably installed on the light steel keel; The material of the decoration inner wall layer is stainless steel inorganic material; the distance between the decoration inner wall layer and the inner wall of the inner cabin is 10 to 15 cm; The outer cabin floor of the outer cabin and the inner cabin floor of the inner cabin are both made of stainless steel mirror floor for laying floor or carpet materials, and at least one set of closed windows is installed on the side of the inner cabin opposite to the door opening; The door opening is sealed with a polyethylene plastic film or is equipped with a hatch; The constant temperature and humidity air conditioning system includes an external cabin fresh air air conditioning system and an internal cabin fresh air air conditioning system. The outer cabin fresh air air conditioning system comprises an outer cabin constant temperature and humidity air conditioning fresh air exchanger, an outer cabin air conditioning air supply duct, an outer cabin air filter, an outer cabin air conditioning air inlet and an outer cabin air conditioning return air outlet, which are sequentially connected in the air inlet direction, and the outer cabin air conditioning air inlet and the outer cabin air conditioning return air outlet are respectively opened on different sides of the outer cabin; The inner cabin fresh air air conditioning system includes an inner cabin constant temperature and humidity air conditioning fresh air exchanger, an inner cabin air conditioning air supply duct, an inner cabin air filter, an inner cabin air conditioning air inlet and an inner cabin air conditioning return air outlet which are sequentially connected according to the air inlet direction. The inner cabin air conditioning air supply duct is sealed and penetrated through the side of the outer cabin, and the inner cabin air conditioning air inlet and the inner cabin air conditioning return air outlet are respectively opened on different sides of the inner cabin.

2. A simulation detection and evaluation method according to the indoor environmental pollution simulation detection and evaluation system of claim 1, characterized in that: The steps include: Initializing and updating the removable decorative inner wall layer in the inner cabin, and sealing the door opening of the inner cabin with a polyethylene plastic film; The temperature and humidity of the outer cabin and the inner cabin are adjusted respectively, and when the temperature and humidity reach preset values, the inner cabin is ventilated with fresh air at least once; Telescopically adjusting the inner tube opening of the sampling tube to extend to the middle area of ​​the inner cabin, sampling the air in the inner cabin, and analyzing to obtain the background value of the pollutant concentration in the inner cabin; Turn off the constant temperature and humidity air conditioning system, retract the sampling tube to the outer cabin, open the sealed door opening, and paint or install the decoration materials on the inner wall layer and the bottom floor of the inner cabin according to the indoor decoration construction process in the actual project; At any time point or decoration construction process node during the decoration process, the door opening of the inner cabin is sealed again with polyethylene plastic film, and the constant temperature and humidity air conditioning system is turned on to adjust the temperature and humidity of the outer cabin and the inner cabin and to ventilate with fresh air respectively. When the preset value requirements are reached, the inner tube mouth of the sampling tube is retracted and adjusted again to extend to the middle area of ​​the inner cabin, the air in the inner cabin is sampled, and the real-time value of the pollutant concentration of the inner cabin at the corresponding time point or process node is analyzed and recorded; According to the background value of the pollutant concentration in the inner cabin and the real-time value at different time points, a pollutant concentration change curve is drawn to evaluate the change of the pollutant concentration in the inner cabin during the whole decoration process or at different time points or different process nodes; When the background value of the pollutant concentration in the inner cabin is measured to be greater than a preset threshold, the outer cabin air filter and the inner cabin air filter of the constant temperature and humidity air conditioning system are replaced respectively, and re-measured; Simulate different construction links in the process of indoor full decoration construction, and use different decoration materials in each construction link; After the first construction link is completed, the temperature and humidity of the inner cabin and the outer cabin are adjusted and fresh air is exchanged, and air sampling is performed in the middle area of ​​the inner cabin through a telescopic sampling tube, and the real-time value of the pollutant concentration released by the decoration materials used in the first construction link is analyzed; After the sampling is completed, the second construction link is continued and air sampling is performed after completion to obtain the real-time value of the pollutant concentration caused by the superposition of different decoration materials corresponding to the first construction link and the second construction link in the inner cabin; Each construction link is carried out in sequence and air sampling is performed until the entire decoration construction process is completed, and the real-time value of the pollutant concentration caused by the superposition of different decoration materials corresponding to each completed construction link in the interior cabin is obtained; Simulate different construction links in the process of indoor full decoration construction, and use different decoration materials in each construction link; After the nth construction link is completed, the temperature and humidity of the inner cabin and the outer cabin are adjusted and fresh air is exchanged, and air sampling is performed in the middle area of ​​the inner cabin through a telescopic sampling tube, and the real-time value of the concentration of pollutants released by the decoration materials used in the nth construction link is analyzed and obtained, wherein n is a positive integer, 1≤n≤N, and N is the total number of construction links in the whole decoration process; Replacing the removable inner wall layer and the stainless steel mirror floor in the inner cabin, re-adjusting the inner cabin and the outer cabin to adjust the temperature and humidity and exchange fresh air, and telescopically adjusting the inner tube mouth of the sampling tube to extend to the middle area of ​​the inner cabin, sampling the air in the inner cabin and re-analyzing it to obtain the background value of the pollutant concentration in the inner cabin; Then, the m-th construction link is simulated. After completion, the temperature and humidity of the inner cabin and the outer cabin are adjusted and fresh air is ventilated. Air sampling is carried out in the middle area of ​​the inner cabin through a telescopic sampling tube, and the real-time value of the pollutant concentration released by the decoration materials used in the m-th construction link is analyzed to obtain, wherein m is a positive integer, 1≤m≤N and m≠n.

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