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product name
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Photovoltaic wet freezing test chamber | Solar photovoltaic module wet freezing test chamber
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application
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The photovoltaic wet freezing test chamber is suitable for conducting thermal cycling, wet freezing cycling, and high temperature and high humidity double 85 tests on photovoltaic modules (solar panels) to confirm whether the modules can withstand the negative temperature effects after high temperature and high humidity, as well as fatigue and thermal failure caused by repeated temperature changes. In addition, it determines the thermal stress generated by photovoltaic modules exposed to high humidity and their ability to resist long-term moisture penetration It is an essential testing equipment in the photovoltaic module industry.
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control system
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The photovoltaic wet freezing test chamber adopts a true color 7.0-inch (North Carolina) TFT LCD touch sensitive Chinese/English display controller When setting up the program, only the temperature and time parameters need to be set, without the need to input additional commands such as compressor startup;
It has 1000 program memories, each with 1000 steps and 100 cycles, and 10 program linking functions;
Equipped with one USB interface and one LAN communication interface, it can monitor the testing process and perform functions such as automatic power on/off;
PID automatic calculation and FUZZY control, with data acquisition, export, and graphical viewing functions.
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refrigeration system
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Photovoltaic wet freezing test box refrigeration machineUse the French Taikang fully enclosed compressor.(The compressor is automatically segmented based on temperature high and low points to reduce energy consumption and extend the service life of the compressor)
Refrigerant: Non fluorinated environmentally friendly refrigerant (DuPont R-404A, R23 from the United States);
Condenser: water-cooled shell and tube typeThe installation of the cooling water tower and its system will be provided by the customer;
Evaporator: finned multi-stage automatic load capacity adjustment;
Expansion system: a refrigeration system with capacity control of solenoid valve and expansion valve.
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Compliant with standards
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Component 61646 Test Method:
a. Thermal cycle test
(Purpose: To determine the ability of components to withstand thermal mismatch, fatigue, and different stresses caused by repeated temperature changes)
Cycle the component between temperatures of -40 ℃± 2 ℃ and+85 ℃± 2 ℃ The temperature change between the highest and lowest temperatures shall not exceed 100 ℃/h
b. Wet freeze test
(Purpose: To determine the ability of components to withstand high temperatures, high humidity, and subsequent sub zero temperatures.)
Make the component change at a rate not exceeding 100 ℃/h between+85 ℃ and 25 ℃, and not exceeding 200 ℃/h between 25 ℃ and -40 ℃
c. Wet heat test
(Purpose: To determine the ability of components to withstand long-term moisture infiltration)
Test temperature: 85 ℃± 2 ℃
Test humidity: 85% ± 5%
Test time: 1000h
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Product images
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performance index
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temperature range
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-60℃～+100℃
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temperature fluctuation
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±0.5℃
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Temperature deviation
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±2.0℃
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Heating and cooling rates
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According to the IEC 61646 test standard (see Article 10)
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humidity test
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85℃，85% RH
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Humidity range
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20%～95% RH
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test method
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a. Hot cycle test b. Wet freeze test c. Wet heat test
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Sample load-bearing capacity
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Solar thin-film modules: 6 pieces, 180kg, aluminum alloy profile storage rack: 280kg
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Timing
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Adjustable from 0.1 to 999.9 (H, M, S)
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control system
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controller
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True Color 7.0-inch (North Carolina) Intelligent Touch Screen Controller
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Accuracy range
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Setting/Display Resolution: Temperature: 0.1 ℃ Humidity: 0.1% RH
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Fixed slope setting
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Temperature 0-100 ℃ per minute, humidity 0-9.9% RH per minute
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lighting
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The lighting inside the box is high brightness and low voltage safety energy-saving lamps
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Heating system
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Specialized stainless steel bare wire electric heater (capable of continuous operation in high temperature and high humidity environments for a long time)
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refrigeration system
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Fully enclosed air-cooled single-stage compression refrigeration method/Original French "Taikang"/Fully enclosed air-cooled cascade compression refrigeration method
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Humidification system
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Stainless steel specialized electric humidifier
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Using materials
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External material
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High quality carbon steel plate Phosphating electrostatic spraying treatment/SUS304 stainless steel matte surface line texture treatment
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Inner box material
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SUS304 stainless steel plate
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Insulation material
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High density hard polyurethane foam (100mm)
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Door frame insulation
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1 high-strength silicone compression strip
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Safety protection
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Leakage, short circuit, overheating, motor overheating, compressor overpressure, overload, overcurrent protection
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supply voltage
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AC380V ± 10% 50 ± 0.5Hz three-phase five wire system
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Environmental temperature for use
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5℃～＋30℃ ≤85％RH
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Note: 1The above data are all at an ambient temperature (QT) of 25 ℃ Measured under no-load conditions in the studio
2. Measurement basis; Measure the placement point of the SENSOR, at a distance of 1/10 of the size inside the inner box wall
This technical information is subject to change without prior notice
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