Lab 18KW High-efficiency Thermal Shock Test Chamber with Pre-heating And Pre-cooling Function

A. Product overview

This series of thermal shock test chambers is mainly used to test the resistance of materials to extremely high or low temperatures, which is similar to the situation where they are not continuously exposed to high or low temperatures. Thermal shock tests can enable various items to complete the tests in the shortest time. The changes or physical damage caused by thermal shock are due to alterations in thermal expansion and contraction or other physical values. The effects of thermal shock include electrochemical changes caused by cracking or delamination of finished products and displacement, etc. The full digital automatic control of the PID system.

 

B. Performance index

1.Impact range: -40℃～150℃

2. Pre-heating box: +50℃～160℃

3. Pre-cooling box: -10℃～-60℃

4. Damper conversion: 10S

5. Temperature fluctuation: ± 0.5℃

6. Temperature rise rate: 0 ~ 150 ℃, ≤50min

7. Cooling rate: 0～-60℃, ≤65min

8. Lower limit of pre-cooling: ≤-60℃.

9. Temperature recovery: ≤5min.

 

C. Box structure

1.Inner box size.

400*350*350mm  

500*400*400mm

600*500*500mm

500*600*750mm

2. Outer box size: according to the actual models

3.Inner box material: stainless steel plate

4.Outer box material: stainless steel plate

5.Box door: single piece door

6.Specimen shelf: stainless steel shelf

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

8. Test body: DNA specifications A grade SUS # 304L stainless steel PT 100Ω platinum resistance

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

10. Heating system: finned heat sink tube-shaped stainless steel heater

 

D. Control system

1. Original TEMI touch screen programmable controller

2. Program storage capacity 120 groups

3. with power failure program memory function, continue to carry out after power restoration.

4. Cycle times: up to 999 times

5. Appointment start and stop function

6. Running time: 0~99 hours and 59 minutes

7. Control device: the main controller adopts double-loop high-precision liquid crystal display touch screen temperature controller

8. It can display the set parameters, test curve, running time and heater working status.

9. PID parameter self-tuning function. Control program preparation using human-computer dialogue mode

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

 

E. Refrigeration system

1. Compressor: France Teconn brand hermetically sealed compressor with high efficiency.

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

3. Condenser: air-cooled condenser (special customization)

4. Evaporator: finned automatic load capacity adjustment

5. Expansion system: capillary capacity control refrigeration system

6. Solenoid Valve: Chang Heng Lu Shi purple copper switching valve

8. Oil separator: Danish Danfoss screw type

9. Refrigeration oil: American DuPont Grade A refrigeration oil.

 

F. Refrigeration technology

1. Refrigeration system compressor: In order to ensure the cooling rate of the test chamber and the minimum temperature requirements, the test chamber using brand-name hermetic compressor composed of binary water-cooled refrigeration system. Compound refrigeration system contains a high-temperature refrigeration cycle and a low-temperature refrigeration cycle, which connects the container for the evaporative condenser, evaporative condenser is to play a role in energy transfer, the heat inside the room through the two-stage refrigeration system to transfer out, to achieve the purpose of cooling.

2. Principle of refrigeration: the refrigerant is adiabatically compressed by the compressor to a higher pressure, consuming the work to make the exhaust temperature rise, after the refrigerant isothermal condenser and the surrounding medium for heat exchange, heat transfer to the surrounding medium. After the refrigerant by the expansion valve adiabatic expansion work, this time the refrigerant temperature is reduced. Finally, the refrigerant through the evaporator isothermal from the higher temperature object heat absorption, so that the cooled object temperature reduction. This cycle starts again and again to achieve the purpose of cooling.

3. Cooling method: air-cooled condenser adopts pure copper thick tube plate heat exchanger. Evaporation condenser using pure copper thick plate fin heat exchanger, the heat exchanger volume is small, high heat transfer coefficient. This greatly improves the thermal efficiency and reduces the floor space.

 

G. Power supply configuration

Test power supply: AC380V, 50Hz

2. Maximum capacity: 18KW

3. Maximum current: 45A

4. Equipment placement: When placing the box, ensure that the distance from the wall is greater than 1000mm.

5. Temperature over-rise preventer (protecting the test sample and the test chamber)

6. High-speed loop protector (for heating protection)

7. Motor (blower, freezer) overload thermal circuit breaker

8. High-pressure pressure switch for freezer (to protect compressor and prolong service life)

9. Circuit breaker for motor (freezer) protection (compressor protection)

1 Standard exported package: Internal anticollision protection, external export wooden box packaging.

2 Shipping by express, by air, by sea according to customers' requirements to find the most suitable way.

3 Responsible for the damage during the shipping process, will change the damage part for you for free.