Simple chamber for formaldehyde or voc release test and pretreatment

2:

• The simple chamber for a formaldehyde or VOC release test and pretreatment according to claim 1, wherein a filtering duct (8) communicating with the interior of the chamber (1) is connected to the exterior of the chamber (1), an intake switch valve (9), an outlet switch valve (10), a filter device located between the inlet switch valve (9) and the outlet switch valve (10) and a filtering fan (11) are mounted on the filtering duct (8), and the filter device comprises a formaldehyde and/or VOC filter (18) and/or dust filter (12) which are connected to the filtering duct (8).

3:

• The simple chamber for a formaldehyde or VOC release test and pretreatment according to claim 1, wherein the liquid temperature regulating jacket (16) is a cavity where liquid circulates on at least one position of the outer wall of the chamber, a heating and cooling device used for controlling the temperature of the liquid is mounted inside the chamber and/or on a flow pipeline, the temperature sensor (7) senses the temperature of the liquid, controls the heating and cooling device to regulate the temperature of liquid flowing through the cavity, so as to indirectly control the temperature inside the chamber.

4:

• The simple chamber for a formaldehyde or VOC release test and pretreatment according to claim 1, wherein the stirring fan (6) is arranged as a frequency-conversion adjustable fan.

5:

• The simple chamber for a formaldehyde or VOC release test and pretreatment according to claim 1, wherein a heater (13) used for regulating the temperature in the chamber is mounted inside the chamber (1).

6:

• The simple chamber for a formaldehyde or VOC release test and pretreatment according to claim 1, wherein an exhaust pump (14) and/or exhaust valve used for controlling the pressure inside the chamber (1) through exhausting is connected to the exhaust port (4) of the chamber (1).

7:

• The simple chamber for a formaldehyde or VOC release test and pretreatment according to claim 6, wherein a pressure sensor (15) is mounted inside the chamber (1).

8:

• The simple chamber for a formaldehyde or VOC release test and pretreatment according to claim 1, wherein an anti-adhesion coating used for preventing formaldehyde or VOC from adhering to the inner wall is provided on the inner wall of the chamber (1).

9:

• The simple chamber for a formaldehyde or VOC release test and pretreatment according to claim 1, wherein the chamber (1) is located in a constant temperature chamber, or an insulation layer is provided outside the chamber (1).

10:

• The simple chamber for a formaldehyde or VOC release test and pretreatment according to claim 1, wherein the chamber (1) consists of glass, a non-metal board (film) and/or a stainless steel material.