1、 System architecture characteristics:

1. It has the function of automatically discharging condensed water to the outside of the work room through drainage pipes (ditches); During equipment installation, corresponding drainage systems will be installed according to the site requirements.

2. The condensation water on the inner wall and top of the studio has a slope drainage device, which prevents water droplets from dripping onto the test sample;

3. The refrigeration system adopts a split installation method, with a built-in air handling system and an outdoor refrigeration unit system, which is compact in structure and reduces indoor noise;

4. Multiple working modes, with functions such as high temperature test, low temperature test, constant humidity test, alternating humidity test, drying, etc;

5. The laboratory adopts an integrated assembly structure, which does not need to be attached to the room wall, and the laboratory is self-contained; The room adopts an assembled and combined cold storage structure, which is easy to disassemble and install;

6. The heating system is a completely independent system that does not affect the freezing and control circuits;

7. The system has protection measures such as leakage circuit protection, compressor overpressure, overcurrent, and overheating protection, fan motor overheating protection, studio overheating protection, and voice alarm.

2、 Main structure of the test box:

1. Enclosure structure:

(1) Room body: assembled and combined cold storage structure, using 10cm thick high and low temperature resistance, with good insulation performance

Assembled from dedicated storage boards;

(2) Material of storage board: The outer box board is made of high-grade galvanized color steel sprayed board that has undergone special rust prevention treatment, and is made of SUS304 brushed stainless steel plate composite assembly board;

The inner box plate is made of SUS304 # imported brushed stainless steel plate, with a thickness of 1mm;

(3) Outer panel color: milky white;

(4) Insulation material: using 100mm thick fire-resistant and environmentally friendly hollow glass fiber cotton insulation insulation insulation material thermal insulation layer; A 3.0mm thick first grade SUS304 anti slip steel plate is added to the surface of the reinforcing rib embedded in the middle, with a load-bearing capacity of:

It has a uniform load of 1000kg/m2 at the location.

2. Kumen:

(1) Material: Insulated warehouse door sealed with special silicone rubber with good toughness, aging resistance, and high and low temperature resistance;

(2) Door opening method: Double door structure, the box door can be manually opened both indoors and outdoors in the test chamber. In case of emergency, the operator can open the door inside the test chamber to ensure personnel safety. Heating wires are embedded around the door frame, and the heating wires are automatically turned on by the control system according to different operating conditions to ensure that the equipment does not condense or frost in low-temperature environments;

(3) Sealing: There is a high and low temperature resistant sealing strip between the door and the shell, effectively ensuring the sealing of the studio;

(4) Size: 1800 * 1800mm (width * height)

3. Window:

(1) Material: Four layer hollow electric heating anti fog and explosion-proof tempered glass.

(2) Quantity: 2 pieces, one on each side

(3) Size: 450 * 500mm,

4. Lighting: The box is equipped with three proof lighting fixtures, and a control switch is installed in the external control cabinet

5. Cable outlet hole:

(1) Material: All stainless steel;

(2) Diameter: ￠ 100;

(3) Quantity: 1 piece, one on the left side of the box, equipped with a silicone plug;

6. Circulating air duct:

(1) Material: Choose rectangular air ducts specifically designed for HVAC systems;

(2) Size: 300mm * 400mm * 5mm;

7. Air inlet and outlet: HVAC dedicated air inlet and outlet;

8. Circulating fan: It adopts a circulating fan motor, a stainless steel extended shaft, and a high and low temperature resistant stainless steel multi wing structure circulating fan to achieve forced convection and vertical diffusion circulation.

9. Cooling tower: 10T circular low-noise cooling tower;

10. Circulating water pump: low-noise pipeline pump, forced water circulation;

11. The load-bearing capacity of the bottom plate inside the box is greater than 5kN/m2.

12. Mechanical room: The refrigeration unit, centrifugal fan, and electrical control part are all placed in the room group.

13. Pressure balancing device: When the differential pressure inside and outside the box rapidly increases, this pressure relief device opens; Quickly reduce the pressure inside the warehouse; When the differential pressure inside and outside the warehouse is greater than 0.02 Bar, this pressure relief valve will automatically operate; And equipped with a protective cover and a position switch to detect the actual position of the pressure relief device and whether it is turned on;

14. Distribution control cabinet: equipped with cooling fans, distribution boards, sample test terminals, main power circuit breakers, compressor circuit breakers, electric short circuit breakers, and automatic control circuit systems.

15. Fixture mouth: There is a 500mm x 250mm wide opening on the side of the test chamber.