formaldehyde environmental climate chamber

One cubic meter environmental climate chamber specially designed for TVOC testing

Wood products, furniture, floors, carpets, footwear products, construction and decoration materials, automotive interior materials and other products in contact with the human body will emit VOC (volatile organic compounds), formaldehyde and other harmful substances to the human body, especially for If the product is placed in a densely enclosed room or in a car, the cumulative concentration will be higher, and it will be more harmful to health.

The test box provides a clean enclosed space without liquid water, while controlling the temperature, humidity, wind speed, relative pressure, and air exchange rate in the warehouse to simulate the release of pollutants from the product in a specific environment.

Features: 1. Inlet gas filtration system: The air entering the box must first pass through a four-stage TVOC filtration system, and then to the water spray tower to be fully washed before entering the experiment box to ensure the background value of formaldehyde and other gases in the air in the experiment box. . 2. Rapid dew point temperature control humidity method: The saturated gas after the experiment box is washed by the water bath shower tower enters a higher temperature environment and reaches a constant temperature and humidity state to ensure that no water droplets are generated on the inner wall of the climate box, and the test data is reliable and accurate . 3. High-efficiency atomization spray system: The spray tower spray system adopts high-speed atomization spray. After the circulating water is sprayed, the spray atomization effect is good, and it mixes with the internal air over the entire area to achieve the best saturation, so that it can pass through After the water spray treatment, the humidity reaches 100%, so that the air humidity in the box can quickly reach the required humidity. 4. The air temperature in the box is stable: the PId automatic high-precision constant temperature water temperature circulation method is used to exchange heat with the air in the climate box to achieve the control of the air temperature in the environment box, and the imported metal platinum resistance temperature sensor is used to measure the temperature in the box with an accuracy of 0.01 Degrees, and long service life at the same time. The refrigeration of the constant temperature water tank and the water spray tower adopts imported high-power refrigeration compressor, which has a fast cooling speed and a noise value of less than 70dB. 404A fluorine-free environmental protection refrigerant, high-quality imported compressor, stable operation and long service life. 5. Intelligent microcomputer automatic temperature control and humidity control: The advanced PLC intelligent control instrument can freely set the air temperature and dew point temperature of the cabinet. The instrument adopts the inching heating method, and the heating and cooling switching frequency can reach up to 6 times per second. , The temperature fluctuation range is within 0.5 degrees, and the humidity fluctuation range is 2%, which fully meets the standard requirements. 6. Good heat preservation of the box: The polyurethane heat insulation material is foamed at one time and has good heat insulation. Imported non-formaldehyde silicone sealing strips make the box have excellent heat preservation and airtightness. The inner tank of the box is seamlessly welded with SUS304 mirror stainless steel plate, the surface is smooth and does not condense, and does not absorb formaldehyde and other gases. 7. The system is equipped with a water level over-limit alarm, a constant temperature water tank and a water spray tower high and low water level protection system to ensure the safe operation of the equipment. Humanized water level simulation observation interface. The water level status is clear at a glance. 8. Diversified operation mode setting function: The climate box is equipped with a multi-function time setting mode; the timing state can be set, and a variety of environmental box work start modes can meet the various needs of different customers for the detection time setting. 9. High accuracy of air flow control in the climate box: In order to achieve the accuracy of the air mixing flow in the box, a high-precision stepless speed regulator is used to control the fan, and the air volume is multi-level stepless adjustment, corresponding to the air volume display. Realize adjustment control. 10. Three-dimensional integrated structure design: the intelligent control room is designed on the upper left side of the working cabin, and the constant temperature and humidity system is designed on the lower left side of the working cabin. The work cabin control room and the constant temperature and humidity system are independent of each other and integrated with each other in structural design to facilitate the daily maintenance of the equipment. 11. Flow control: High-precision rotameter is used for gas supply measurement, with an accuracy of not less than 2.5m³/h, and the gas flow can be adjusted according to the test of different materials. 12. Data processing: data backup function, can save 300 days of work data (continuous) can be inquired at any time, backup and dump, the equipment provides 2 USBinterfaces and provides a network interface. (According to user requirements) 13. Touch screen system: Set the temperature, humidity, dew point temperature, working time, gas flow and other parameters of the climate chamber through the touch screen; automatically calculate the dew point temperature and automatically control the dew point temperature; display temperature, humidity, time and other data in real time; store and export the temperature , Humidity, time and other data; historical fault query, historical data playback function; authority setting appointment power-on and other functions. 14. Equipment maintenance lighting and manual LED lighting in the box are convenient and practical. 15. Fast humidity automatic constant humidity system, the first time the machine is turned on, the humidity can reach the normal set value within 20-30 minutes at the fastest. Technical data:

Dimensions	1750*1260*1700mm
Inner volume	1000L (can inject 20L distilled water)
weight	600KG
Ambient temperature	15~35℃
Temperature control range	(10℃~40℃)±0.2℃
Humidity control range	(30%RH~75%RH)±0.5%RH
Refrigerant/injection volume	R134a/320g R404a/240g
Surface wind speed of test material	(0.0~2.5)m/s adjustable
Sampler pumping speed	0.8~2.5L/min adjustable(optional)
Air tightness (static)	1 kpa leak rate≤0.5%min
Air exchange rate	0.01~2.5m³/h(adjustable)
Clean air	Formaldehyde background concentration≤0.006mg/m³Single VOC background concentration≤0.002mg/m³VOC background concentration≤0.01mg/m³
Empty box background	Formaldehyde background concentration≤0.006mg/m³Single VOC background concentration≤0.005mg/m³VOC background concentration≤0.01mg/m³