-40-150C 150L Laboratory Thermal Shock Test Chamber For Battery Safety Performance Testing

-40-150C 150L Laboratory Thermal Shock Test Chamber For Battery Safety Performance Testing

Introduction

This series of cold and thermal shock test chamber is mainly used to test the resistance of materials to extremely high temperature or extremely low temperature, which is similar to the situation of discontinuous high temperature or low temperature, cold and thermal shock test can make various items in the shortest time to complete the test. The change or physical damage caused by the thermal epicenter is caused by the change of thermal expansion and contraction or other physical values. The effect of thermal shock includes the electrochemical changes caused by the cracking or breaking of the finished product and the displacement, etc. The PID system is fully digital automatic control.

Performance indicators

1. Test range: -40℃ ~ 150℃

2. Pre-heating box: +50℃ ~ 160℃

3. Pre-cooling box: -10℃ ~ -60℃

4. Damper switch: 10S

5. Temperature fluctuation: ±0.5℃

6. Heating rate: 0 ~ 150℃≤50min

7. Cooling rate: 0 ~ -60℃≤65min

8. Lower limit of precooling: ≤-60℃

9. Temperature recovery: ≤5min;

Box structure

1. Inner box size: 500*500*600mm

2. Outer box size: according to the actual model

3. Inner box material: stainless steel plate

4. Outer box material: stainless steel plate

5. Box door: single piece door

6. Sample rack: stainless steel rack

7. Test hole: 1 ￠50mm test hole on the left side of the body, with 1 stainless steel hole cover.

8. Test object: DNA specification A Class SUS#304L stainless steel PT 100Ω platinum resistor

9. Insulation material: high efficiency polyurethane foam + glass rock wool

0. Heating system: fin type heating pipe stainless steel electric heater

Control system

1. Original TEMI touch screen programmable controller

2. Program storage capacity 120 groups

3. With power failure program memory function, continue after power recovery,

4. Cycles up to 999 times

5. Schedule start and stop functions

6. Running time: 0~99 hours 59 minutes

7. Control device: The main controller adopts double circuit high-precision LCD touch screen temperature controller

8. Can display set parameters, test curve, running time, heater working state

9.PID parameter self-tuning function. The control program is compiled by man-machine dialogue

0. Perfect detection device can automatically carry out detailed fault display alarm.

Refrigeration system

1. Compressor: French Taikang brand full hermetic high efficiency full hermetic compressor

2. Refrigerant: DuPont, the United States, the use of zero ozone coefficient of green refrigerant

3. Cooling condenser: Air-cooled condenser (special custom)

4. Steam evaporator: fin type automatic load capacity adjustment

5. Expansion system: freezing system with capillary capacity control

6. Solenoid valve: Permanent Rusi copper switch valve

8. Oil separator: Denmark Danvers screw type

9. Freezing oil: DuPont Class A freezing oil

Refrigeration technology

1. Refrigeration system compressor: In order to ensure the cooling rate and minimum temperature requirements of the test chamber, the test chamber uses a binary cascade water-cooled refrigeration system composed of brand fully enclosed compressors. The cascade refrigeration system consists of a high-temperature refrigeration cycle and a low-temperature refrigeration cycle, and the connected container is an evaporative condenser. The evaporative condenser plays the role of energy transfer and transmits the heat energy in the working room through the two-stage refrigeration system to achieve the purpose of cooling.

2. Refrigeration working principle: The refrigerant is adiabatic compressed to a higher pressure by the compressor, and the work is consumed to increase the exhaust temperature, and then the refrigerant is isothermal heat exchange with the surrounding medium through the condenser, and the heat is transferred to the surrounding medium. After the refrigerant expands adiabatically through the expansion valve to do work, the refrigerant temperature decreases. Finally, the refrigerant absorbs heat from the higher temperature object isothermal through the evaporator, so that the temperature of the cooled object is reduced. This cycle is repeated to achieve the purpose of cooling.

3, cooling method: air cooled condenser using pure copper thick tube-plate heat exchanger. The evaporative condenser adopts a thick plate fin heat exchanger of pure copper, which has small volume and high heat transfer coefficient. Thus greatly improve the thermal efficiency and reduce the footprint.

Power supply configuration

1.Test power supply: AC380V 50Hz

2. Maximum capacity: 20KW

3. Maximum current: 55A

4. Equipment placement: When placing the box, pay attention to the distance between the box and the wall should be greater than 1000mm.

5. Temperature overrise prevention device (to protect the subject and the test chamber)

6. High speed circuit protector (to protect heating,)

7. Motor (blower, refrigerator) overload heat circuit breaker

8. Refrigerator high pressure pressure switch (protect compressor, extend service life)

9. Circuit breaker to protect motor (freezer) (compressor protection)