CN209784309U - Simulation test room for detecting harmful gas precipitation amount of plates and furniture - Google Patents
Simulation test room for detecting harmful gas precipitation amount of plates and furniture Download PDFInfo
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Abstract
a simulation test chamber for detecting the harmful gas evolution quantity of plates and furniture is used for acquiring the harmful gas evolution quantity data of tested objects in the same space in unit time. The device comprises a laboratory main body, a test environment control system and a measuring device; the laboratory main body is used for forming an airtight test environment capable of storing a tested object; the test environment control system comprises a ventilation module which mainly comprises an air inlet channel, an air exhaust channel and a ventilation device; a purification device and a one-way valve are sequentially arranged in the air inlet channel, and a one-way valve is arranged in the air outlet channel, so that outdoor gas can only enter the laboratory main body in one way and does not contain harmful gas; the measuring device is used for measuring indoor temperature data, indoor humidity data, indoor air pressure data, indoor harmful gas data and outdoor air pressure data. The method is convenient for determining proper furniture and plates before interior decoration, and avoids the treatment cost when harmful gas exceeds the standard requirement after interior decoration.
Description
Technical Field
the utility model relates to a panel detects technical field for furniture, concretely relates to simulation test room that is used for detecting the harmful gas of panel and furniture to separate out volume.
Background
In the past decade, the indoor environmental pollution problem in China is quite serious and has been a social hotspot problem for years: a survey result published by China Consumer Association 2001 in 2001 shows that the concentration of harmful gas exceeds 73% in indoor environmental pollution detection after 30 users in Beijing City are decorated, 79% in indoor environmental pollution detection after 53 decorations in Hangzhou City, 10 times of the highest exceeding, and more than 40% in VOC and benzene exceeding.
After the indoor environmental pollution control standard of civil building engineering released and executed in the early 2002, various relevant departments do a lot of work, the overall situation is gradually improved, but the problems still exist: according to 2006-2009 part of the area decorated houses and office buildings indoor environmental pollution detection results, the exceeding proportion of harmful gas is still more than 50%, and the exceeding proportion of TVOC is 40%. A CCTV-2 living channel of a central TV station organizes a rough inspection of partial items of indoor decoration pollution in 2005, and results show that harmful gas (exceeding proportion is 70%) seriously exceeds standard, TVOC (exceeding proportion is 38%) seriously exceeds standard, benzene pollution is light (exceeding proportion is 11%), and a rough inspection conclusion is as follows: the indoor pollution caused by decoration in China is serious, and the concern of relevant departments in China is aroused (the rough inspection only provides reference due to lack of technical support and quality control). The indoor environmental pollution problem complaints of local newspaper and television news reports are continuous, indoor environmental pollution disputes occur at times, cases of children suffering from leukemia are increased, and spearheads are still polluted by indoor decoration.
The problems that how to solve the problems that how to master the use amount of a decoration material in decoration design to ensure that indoor air pollution does not exceed the standard and how to ensure that the indoor decoration material pollution is within the limit value specified by the state in different seasons (different temperatures) are solved, and the like, are solved for more than ten years, because the national indoor pollution survey is not organized in the construction, environmental protection and sanitation systems, the basic situation is unclear, the research on the pollutant release conditions under different decoration working conditions is less, exact answers are difficult to give, a first-line decoration design constructor lacks the technical support of pollution prevention and treatment, and cannot help the indoor pollution problem.
in view of the situation, a simulation experiment room for detecting harmful gas precipitation of the decoration materials under the conditions of different use amounts, different temperatures and humidity and different ventilation volumes is urgently needed, so that technical support is provided for reducing and preventing pollution of front-line decoration design constructors and specific measures for preventing and treating indoor decoration pollution from being brought forward from the actual needs of decoration design construction.
SUMMERY OF THE UTILITY MODEL
The invention aims to provide a simulation test room for detecting the harmful gas precipitation amount of plates and furniture, so as to obtain the harmful gas precipitation amount data of tested objects in the same space in unit time.
In order to solve the technical problem, the utility model adopts the following technical scheme:
A simulation test room for detecting the harmful gas evolution quantity of plates and furniture is designed, and comprises a test room main body, a test environment control system and a measuring device; the laboratory body is provided with an airtight door for forming an airtight test environment capable of storing a tested object; the test environment control system comprises an air exchange module; the ventilation module comprises an air inlet channel, a purification device, an exhaust channel and a ventilation device, wherein the purification device and a first one-way valve are sequentially arranged in the air inlet channel, and a second one-way valve is arranged in the exhaust channel, so that gas outside the laboratory main body can only enter the laboratory main body in one way, and the gas entering the laboratory main body does not contain harmful gas; the ventilation device is arranged in the air inlet channel or the air outlet channel; the measuring device is used for measuring indoor temperature data, indoor humidity data, indoor air pressure data and indoor harmful gas data in the airtight test environment, and outdoor air pressure data outside the airtight test environment.
Preferably, the measuring device further comprises a plurality of sampling pipes fixedly distributed on the roof of the laboratory main body, and valves are mounted on the sampling pipes outside the laboratory main body; the laboratory main part includes first wall and the second wall relative with first wall the rear of first check valve, inlet channel is formed with a plurality of gas outlets, and these gas outlets evenly distributed is close to first wall sets up the place ahead of second check valve, outlet channel is formed with a plurality of air inlets, and these a plurality of air inlets evenly distributed is close to the second wall sets up.
Furthermore, 3 air inlet branch pipes are vertically arranged at the position close to the first wall, the air outlets are arranged at the positions, close to the second wall, of the air inlet branch pipes, and one air outlet is arranged at each 0.18-0.22 m in the height direction of each air inlet branch pipe; the middle parts of the air inlet branch pipes are communicated with the air outlet side of the first one-way valve, and plugs are arranged at two ends of each air inlet branch pipe; 3 exhaust branch pipes are vertically arranged at the positions close to the second wall, the air inlets are arranged at the positions, close to the first wall, of the exhaust branch pipes, and one air inlet is arranged at each 0.18-0.22 m in the height direction of each exhaust branch pipe; the middle parts of the exhaust branch pipes are communicated with the air inlet side of the second one-way valve, and plugs are arranged at two ends of each exhaust branch pipe.
Furthermore, the distance between the first face wall and the second face wall is 2-3 m, the number of the sampling pipes is 5, and sampling openings of the sampling pipes are distributed at the top point and the intersection point of the cross shape.
Preferably, an airtight body is bonded to a joint between the laboratory main body and the airtight door, the airtight body includes a nonradioactive material and a tin foil for wrapping the nonradioactive material, and the nonradioactive material is disposed in the tin foil.
Preferably, the measuring device is further arranged in a temperature and humidity sensor in the laboratory main body, the test environment control system further comprises a temperature regulator, a humidity regulator and a controller, the temperature and humidity sensor is correspondingly connected with the input end of the controller, and the output end of the controller is respectively electrically connected with the temperature regulator and the temperature regulator, so that the temperature in the airtight test environment is maintained in a target temperature range, and the humidity in the airtight test environment is maintained in a target humidity range.
Preferably, the air interchanger comprises an induced draft fan arranged in the air inlet channel and an exhaust fan arranged in the exhaust channel, and the induced draft fan is 3m3/h-30m3A/h stepless variable frequency fan.
Compared with the prior art, the beneficial effects of the utility model are that: the method can obtain the harmful gas precipitation amount data of tested objects in the same space in unit time, so that the proper furniture and plates can be determined before indoor decoration, and the processing cost when the harmful gas exceeds the standard requirement after the indoor decoration is avoided.
Drawings
Fig. 1 is a schematic structural diagram of a simulation laboratory for detecting the evolution amount of harmful gases of boards and furniture after a roof is removed.
In the figure, 1-a laboratory main body, 11-an airtight door, 12-a first wall, 13-a second wall, 21-an air inlet channel, 211-an air outlet, 22-a purifying device, 23-an induced draft fan, 24-a first one-way valve, 25-a valve, 31-an air outlet channel, 311-an air inlet, 32-a second one-way valve, 33-an exhaust fan, 34-a valve, 4-a control box, 51-a temperature and humidity sensor, 52-a sampling pipe, 521-a valve and 522-a sampling port.
Detailed Description
the following embodiments are only intended to illustrate the present invention in detail, and do not limit the scope of the present invention in any way.
In the prior art, a British product PPM test instrument can measure the concentration of formaldehyde; the pump-suction ammonia analyzer produced by Wanandy measurement and control Limited company in Shenzhen can measure the ammonia concentration; an online VOC analyzer manufactured by sienbo instruments ltd can be used to detect VOCs concentrations.
Example 1: a simulation laboratory for detecting the harmful gas evolution quantity of plates and furniture, see figure 1, comprises a laboratory main body 1, a test environment control system and a measuring device. In fig. 1, a laboratory main body 1 is provided in a room body, and a sample storage room and a chemical analysis laboratory can be provided in the room body as required.
However, the laboratory main body 1 may not be provided in the house.
The laboratory main body 1 is provided with an airtight door for forming an airtight test environment capable of storing a test object.
The test environment control system comprises an air exchange module; the ventilation module comprises an air inlet channel 21, a purification device 22, an exhaust channel 31 and a ventilation device, wherein the purification device 22 and a first one-way valve 24 are sequentially arranged in the air inlet channel 21, and a second one-way valve 32 is arranged in the exhaust channel 31, so that gas outside the laboratory main body 1 can only enter the laboratory main body 1 in one way, and the gas entering the laboratory main body 1 does not contain harmful gas; the ventilation device is provided in the intake passage 21 or the exhaust passage 31.
The measuring device is used for measuring indoor temperature data, indoor humidity data, indoor air pressure data and indoor harmful gas data in the airtight test environment, and outdoor air pressure data outside the airtight test environment. The room temperature data is typically relative temperature RH data.
In general, formaldehyde, ammonia, and VOCS may all be referred to as laboratory subject harmful gases. Formaldehyde removal methods include formaldehyde purification adsorbents such as activated carbon, activated silicon, activated alumina; alternatively, a photocatalyst material such as cyclooxazal produced by Germany. The method for removing ammonia gas includes an adsorption method and an acid reaction method, and generally, an adsorption material is required to be arranged after the acid reaction method to adsorb evaporated acid gas. The method for removing VOCS includes an adsorption method and a combustion method. Therefore, an adsorbent layer, such as activated carbon or activated silicon, can be generally provided in the purification apparatus. The purification device may also include a dust removal module, such as a cloth bag filter, as desired.
Example 2: a simulation test room for detecting the harmful gas evolution quantity of plates and furniture is disclosed, referring to fig. 1, a laboratory main body comprises a first wall 12 and a second wall 13 opposite to the first wall 12, as a preference for embodiment 1, a measuring device comprises at least two air pressure sensors (not shown) and a temperature and humidity sensor 51, one of the air pressure sensors is arranged in the laboratory main body 1, the other air pressure sensor is arranged outside the laboratory main body 1, the test environment control system further comprises a controller (not shown), and the controller is arranged in a control box 4. The controller can be an electronic computer, a PLC and a single chip microcomputer, and for example, the controller is the electronic computer, and the RS232 data acquisition card and the RS232 control card are attached to the electronic computer. The RS232 data acquisition card comprises a serial port-to-RS 232 circuit, an A/D conversion module and a plurality of paths of sampling circuits, wherein the interfaces of the three paths of sampling circuits of the RS232 data acquisition card are respectively and correspondingly and electrically connected with the wires of the temperature and humidity sensor 51 and the wires of the air pressure sensor, and the RS232 serial port of the RS232 data acquisition card is inserted into the RS232 serial port of the electronic computer.
As a harmful gas measuring method, a plurality of sampling pipes 52 can be fixedly arranged on the roof of the laboratory main body 1, a valve 521 is arranged outside the laboratory main body 1 on the sampling pipes 52, at this time, a pipe orifice at one end of the sampling pipe 52 in the laboratory main body 1 corresponds to the sampling port 522, and when the valve 521 is closed, the gas in the laboratory main body 1 cannot be exchanged with the gas outside the laboratory main body 1. Referring to fig. 1, preferably, the distance between the first wall 12 and the second wall 13 is 2-3 m, there are 5 sampling tubes 52, and the sampling ports 522 of the sampling tubes 52 are distributed at the vertex and intersection of the cross shape. The sampling port 522 of the sampling tube 52 can be made of a stainless steel tube with the diameter of 6mm, and is led out of the laboratory main body 1 by adopting a pressure tapping tube.
The air inlet passage 21 is formed with a plurality of air outlets 211 at the rear of the first check valve 24, the air outlets 211 being uniformly distributed and disposed adjacent to the first wall 12, and the air outlet passage 31 is formed with a plurality of air inlets 311 at the front of the second check valve 32, the air inlets 311 being uniformly distributed and disposed adjacent to the second wall 13. Thus, during ventilation, the gas outside the laboratory main body 1 is filtered by the purifying device 22 to remove harmful gas and then enters the laboratory main body 1 through the first check valve 23 and the gas outlet 211, the gas inside the laboratory main body 1 enters the exhaust duct 31 through the gas inlet 311, and the gas is discharged outside the laboratory main body 1 through the second check valve 32 inside the exhaust duct 31. The gas outlet 211 and the gas inlet 311 are arranged on opposite sides, so that the gas in the laboratory body 1 can be conveniently exhausted. Moreover, the sampling port 522 is disposed on the roof of the laboratory main body 1 to ensure the stability of the concentration of the harmful gas at the sampling port 522, because after the gas in the laboratory main body 1 is exhausted and updated, the harmful gas emitted from the tested object in the laboratory main body 1, such as formaldehyde, ammonia, and VOCS, will diffuse to the roof of the laboratory main body 1 after being filled in the laboratory main body 1.
Preferably, in the laboratory main body 1, the air inlet channel is communicated with the middle parts of the three vertically arranged air inlet branch pipes which are uniformly separated, and plugs are arranged at two ends of each air inlet branch pipe. Each air inlet branch pipe is 2.2-2.8 m long, an air outlet 211 is formed in each air inlet branch pipe every 0.18-0.22 m, and the inner diameter of each air outlet can be 5-7 mm. As an example, the air inlet channel is formed by a pipe with the diameter of 40mm, the length of each air inlet branch pipe is 2.5m, each air inlet branch pipe is provided with an air outlet 211 every 0.2m, and the inner diameter of each air outlet is 6 mm. In laboratory main part 1, the middle part intercommunication of exhaust passageway and three evenly separately vertical exhaust branch pipes that set up is equipped with the end cap at the both ends of every exhaust branch pipe, and every exhaust branch pipe is long 2.2 ~ 2.8m, on every exhaust branch pipe, an air inlet 311 is seted up to every 0.18 ~ 0.22m distance, and the internal diameter of air inlet can be 7 ~ 9 mm. As an example, the exhaust passage is formed by a pipe with the diameter of 50mm, the length of each exhaust branch pipe is 2.5m, an air inlet 311 is arranged on each exhaust branch pipe at the distance of 0.2m, and the inner diameter of each air inlet is 8 mm.
preferably, when the airtight door 11 is closed on the laboratory main body 1, an airtight body (not shown) is attached to the joint of the laboratory main body 1 and the airtight door 11, the airtight body comprises a non-radioactive material and a tin foil for wrapping the non-radioactive material, the non-radioactive material is arranged in the tin foil, and the reason why the non-radioactive material is adopted is to avoid polluting materials in a room and interfering with test results.
Preferably, the test environment control system further includes a temperature regulator and a humidity regulator, and after the indoor temperature data and the indoor humidity data in the airtight test environment are acquired, the temperature regulator and the humidity regulator may be controlled manually or automatically. The temperature regulator is a common air conditioner regulator, a single chip microcomputer type controller is generally arranged in the air conditioner regulator, the temperature and the humidity can be regulated, and the air conditioner has the function of maintaining the temperature in an airtight test environment within a target temperature range. Therefore, when the air conditioner is selected as the temperature conditioner, the humidity conditioner only needs to have a function of increasing humidity, such as a humidifier. Because the humidity regulator is realized by the air conditioner and the humidifier together, the serial port line of the RS232 control card is required to be in master-slave communication connection with the serial port line of the singlechip controller of the air conditioner, and the relay load end interface of the RS232 control card is connected into the power line of the humidifier in series, so that the humidity reducing function of the air conditioner and the humidifying function of the humidifier are controlled through the electronic computer, and the humidity in the airtight test environment is maintained in a target humidity range.
Preferably, the ventilation device comprises an induced draft fan 23 arranged in the air inlet channel 21 and an exhaust fan 33 arranged in the exhaust channel 31, wherein the induced draft fan 23 is 3m3/h-30m3A/h stepless variable frequency fan. The induced draft fan 23 is preferably provided between the purification apparatus 22 and the first check valve 24 because, when the induced draft fan 23 is provided on the air intake side of the purification apparatus 22, the air flow discharged from the induced draft fan 23 may exceed the purification capacity of the purification apparatus; when the induced draft fan 23 is disposed on the air outlet side of the first check valve 24, the first check valve 24 may form an airflow resistance. Similarly, the exhaust fan 32 is preferably disposed on the intake side of the second check valve 32.
In addition, the exhaust fan 33 may not be provided in the exhaust passage 31, and a differential pressure regulating valve may be provided in the exhaust passage 31, so that when the induced draft fan 23 operates, the air pressure in the laboratory main body 1 increases, and when a differential pressure opening condition of the differential pressure regulating valve is reached, the gas in the laboratory main body 1 may be exhausted from the exhaust passage 31.
According to the requirement, the induced draft fan 23 can be arranged in a fan box, the air quantity of the fan box is measured by a measuring method required by national standard (GB/T7725-2004 appendix D), a nozzle, a pressure difference tester, the induced draft fan and other equipment are arranged in the fan box, and a stainless steel shell is adopted outside the fan box.
Alternatively, the valve 25 is installed on the intake passage on the intake side of the purification apparatus 22, and the valve 34 is installed on the exhaust passage on the exhaust side of the second check valve 32, so that when the valve 25, the valve 34, the valve 521, and the airtight door 11 are closed, the gas inside the laboratory body 1 is isolated from the gas outside the laboratory body 1.
Using the method of the simulation test room for detecting the evolution amount of the harmful gas of the panel and the furniture in the embodiment 1 or the embodiment 2, the ratio of the volume of the main body 1 of the test room to the volume of the target space is 1: a, the material type of the tested object is consistent with the material type of the object arranged in the target measuring space, and the volume ratio of the number of the tested objects to the number of the objects arranged in the target measuring space in each material type is 1: a; a is a constant greater than 0, a preferably being 1, comprising the steps of,
(1) An evacuation step, wherein the evacuation step comprises measuring the concentration of harmful gases in the laboratory main body at a frequency of 0.5 times/hour when the airtight door is in a closed state, and operating a ventilation device in time after the measurement is finished so as to replace the gases in the laboratory main body; in a continuous measuring period of at least 24 hours, carrying out the following steps after the concentration of harmful gas in the laboratory main body, the indoor temperature data and the indoor temperature data meet the test requirements; as an alternative example, the harmful gas in the laboratory body comprises formaldehyde, ammonia and VOCS, when the concentration of the formaldehyde is less than or equal to 0.01mg/m3The concentration of the ammonia is less than or equal to 0.05mg/m3The concentration of VOCS is less than or equal to 0.1mg/m3When the indoor temperature data is 15-35 ℃ and the indoor humidity data is 30-80%, the test requirements are met; in the subsequent test process, the indoor temperature data is maintained between 15 ℃ and 35 ℃ and the indoor humidity data is maintained between 30 percent and 80 percent.
(2) Placing a tested object, wherein the step of placing the tested object comprises the steps of placing the tested object into the laboratory main body after the simulation laboratory meets the test requirements, forming an airtight test environment in the laboratory main body, and performing at least one test mode after 48 hours:
Recording indoor temperature data, indoor humidity data, indoor air pressure data and outdoor air pressure data outside the airtight test environment in the airtight test environment at the frequency of 1 time/hour, measuring the harmful gas concentration of at least 4 sampling points in the laboratory main body, wherein the average value of the harmful gas concentration of the sampling points is the corrected value of the harmful gas concentration, and operating a ventilation device in time after the measurement is finished to replace the gas in the laboratory main body; in the continuous measuring period of at least 24 hours, until the harmful gas concentration correction value is basically stable, when the harmful gas concentration correction value is 0.2mg/m above or below the average value3in the interval, the concentration of the harmful gas can be considered to be substantially stable, the same is true in the following;
Recording indoor temperature data, indoor humidity data, indoor air pressure data and outdoor air pressure data outside the airtight test environment in the airtight test environment at the frequency of 0.5 time/hour, measuring the harmful gas concentration of at least 4 sampling points in the laboratory main body, wherein the average value of the harmful gas concentration of the sampling points is the corrected value of the harmful gas concentration, and operating the ventilation device in time after the measurement is finished to replace the gas in the laboratory main body; in the continuous measuring period of at least 24 hours, the corrected value of the concentration of the harmful gas measured each time is approximately stable;
Recording indoor temperature data, indoor humidity data, indoor air pressure data and outdoor air pressure data outside the airtight test environment in the airtight test environment at the frequency of 0.2 time/hour, measuring the harmful gas concentration of at least 4 sampling points in the laboratory main body, wherein the average value of the harmful gas concentration of the sampling points is the corrected value of the harmful gas concentration, and operating the ventilation device in time after the measurement is finished to replace the gas in the laboratory main body; in the continuous measuring period of at least 24 hours, the corrected value of the concentration of the harmful gas measured each time is approximately stable;
Recording indoor temperature data, indoor humidity data, indoor air pressure data and outdoor air pressure data outside the airtight test environment in the airtight test environment at the frequency of 0.1 time/hour, measuring the harmful gas concentration of at least 4 sampling points in the laboratory main body, wherein the average value of the harmful gas concentration of the sampling points is the corrected value of the harmful gas concentration, and operating the ventilation device in time after the measurement is finished to replace the gas in the laboratory main body; in the continuous measuring period of at least 24 hours, the corrected value of the concentration of the harmful gas measured each time is approximately stable;
Recording indoor temperature data, indoor humidity data, indoor air pressure data and outdoor air pressure data outside the airtight test environment in the airtight test environment at a frequency of 0.1 time/hour, measuring the harmful gas concentration of at least 4 sampling points in the laboratory main body, wherein the average value of the harmful gas concentration of the sampling points is the corrected value of the harmful gas concentration, and the measured corrected value of the harmful gas concentration is substantially stable in each continuous measuring period of at least 48 hours;
When two or more of the above test modes are simultaneously used, the test mode a, the test mode b, the test mode c, the test mode d and the test mode e are sequentially performed, and after each test mode is finished, the ventilation device is operated to replace the gas in the laboratory main body, and the next test mode can be started after the gas in the laboratory main body is updated for at least 48 hours.
And processing the recorded data and the measured harmful gas concentration data. For example, threshold values of the concentrations of the harmful gases in the test modes a, b, c, d and e can be obtained through tests, and then whether the harmful gas release of the furniture or the panel is required or not can be determined according to the threshold values.
According to the needs, when confirming the utility model discloses an experimental effect, can be when measuring the harmful gas concentration in the laboratory main part, measure the harmful gas concentration in the laboratory main part as the contrast.
The present invention has been described in detail with reference to the accompanying drawings and embodiments, but those skilled in the art will understand that various specific parameters in the above embodiments can be changed without departing from the spirit of the present invention to form a plurality of specific embodiments, which are the common variation ranges of the present invention and will not be described in detail herein.
Claims (7)
1. A simulation test room for detecting the harmful gas precipitation amount of plates and furniture comprises a main body of the test room, a test environment control system and a measuring device; the laboratory body is provided with an airtight door for forming an airtight test environment capable of storing a tested object; the test environment control system comprises an air exchange module; the ventilation module comprises an air inlet channel, a purification device, an exhaust channel and a ventilation device, wherein the purification device and a first one-way valve are sequentially arranged in the air inlet channel, and a second one-way valve is arranged in the exhaust channel, so that gas outside the laboratory main body can only enter the laboratory main body in one way, and the gas entering the laboratory main body does not contain harmful gas; the ventilation device is arranged in the air inlet channel or the air outlet channel; the measuring device comprises an indoor air pressure sampling unit and an outdoor air pressure sampling unit; the measuring device is used for measuring indoor temperature data, indoor humidity data, indoor air pressure data and indoor harmful gas data in the airtight test environment, and outdoor air pressure data outside the airtight test environment.
2. The simulation test chamber of claim 1, wherein the measuring device further comprises a plurality of sampling pipes fixedly distributed on the roof of the laboratory body, and valves are installed on the sampling pipes outside the laboratory body; the laboratory main part includes first wall and the second wall relative with first wall the rear of first check valve, air intake passage is formed with a plurality of gas outlets, and these gas outlets evenly distributed is close to first wall sets up the place ahead of second check valve, exhaust passage is formed with a plurality of air inlets, and these air inlets evenly distributed is close to the second wall sets up.
3. The simulation test room of claim 2, wherein 3 air inlet branch pipes are erected at positions close to the first wall, the air outlets are arranged at positions of the air inlet branch pipes adjacent to the second wall, and one air outlet is arranged at every 0.18-0.22 m in the height direction of each air inlet branch pipe; the middle parts of the air inlet branch pipes are communicated with the air outlet side of the first one-way valve, and plugs are arranged at two ends of each air inlet branch pipe; 3 exhaust branch pipes are vertically arranged at the positions close to the second wall, the air inlets are arranged at the positions, close to the first wall, of the exhaust branch pipes, and one air inlet is arranged at each 0.18-0.22 m in the height direction of each exhaust branch pipe; the middle parts of the exhaust branch pipes are communicated with the air inlet side of the second one-way valve, and plugs are arranged at two ends of each exhaust branch pipe.
4. The simulation laboratory of claim 2, wherein the distance between the first wall and the second wall is 2-3 m, the number of the sampling tubes is 5, and the sampling ports of the sampling tubes are distributed at the vertex and the intersection of the cross shape.
5. The simulation laboratory of claim 1, wherein an airtight body is bonded to a connection portion of the laboratory main body and the airtight door, the airtight body including a nonradioactive material and a tin foil for wrapping the nonradioactive material, the nonradioactive material being disposed in the tin foil.
6. the simulation laboratory of claim 1, wherein the measuring device further comprises a temperature and humidity sensor disposed in the laboratory main body, the test environment control system further comprises a temperature regulator, a humidity regulator, and a controller, the temperature and humidity sensor is correspondingly connected to an input end of the controller, and an output end of the controller is electrically connected to the temperature regulator and the temperature regulator, respectively, so that the temperature in the airtight test environment is maintained in a target temperature range, and the humidity in the airtight test environment is maintained in a target humidity range.
7. the simulation laboratory of claim 1, wherein said air interchanger comprises an induced draft fan disposed in said air intake passage and an exhaust fan disposed in said exhaust passage, said induced draft fan being 3m3/h-30m3A/h stepless variable frequency fan.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109884254A (en) * | 2019-03-20 | 2019-06-14 | 泰宏建设发展有限公司 | For detecting the simulation laboratory and application method of the pernicious gas amount of precipitation of plate and furniture |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109884254A (en) * | 2019-03-20 | 2019-06-14 | 泰宏建设发展有限公司 | For detecting the simulation laboratory and application method of the pernicious gas amount of precipitation of plate and furniture |
| CN109884254B (en) * | 2019-03-20 | 2024-08-27 | 泰宏建设发展有限公司 | Simulation laboratory for detecting harmful gas precipitation amount of plates and furniture and use method |
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