The aging rack of the aging cabinet is divided into product area and load area, separated by an electric wooden board in the middle. Test products are placed in the product area, and the load for testing products is placed in the load area. The load and its connecting wires are provided by the customer themselves; The load area is not controlled by temperature, and an exhaust fan is installed to exhaust the heat generated by the product due to load operation, so as to maintain it at room temperature.

Protection method for aging cabinet

When operating stably or exceeding the set temperature (≥ 2 ℃), the cooling air duct in the product area is opened to maintain a constant temperature inside the product area

2. Over temperature protector: When the circulating fan malfunctions or the heater loses control, cut off the heating system and product power supply

3. Air incinerator protector: When the temperature of the heating tube gauge rises to 100 ℃, cut off the power supply of the heater

4. Ceramic wire: Heating tube overcurrent protection

5. Leakage switch: System overcurrent and leakage protection

6. Indicator light and buzzer sound and light alarm device: When protecting against overheating and motor overcurrent, the indicator light and buzzer will sound an alarm

7. If the exhaust fan in the load area malfunctions, cut off the power supply of the product

8. The system is equipped with smoke alarm devices, with 2 in the product area and 2 in the load area. When the smoke alarm is triggered, the system power is cut off

9. Overload protection for exhaust fans and circulating fans.

10. Power supply under phase protection to prevent reverse rotation of the circulating motor caused by changes in the phase sequence of the power grid

External dimensions: D710 × W2000 × H2350, deep × wide × Height mm;

1.6 Heating power: 9.0KW;

1.10 Overall power: approximately 11.0KW; S

1.11 Power supply: 380V, 50Hz; Three phase five wire system.

Control method and characteristics of aging cabinet:

1. Adopting PLC processing industrial touch screen programming combination control, balanced temperature control system: the aging test specimen room temperature rises and the ventilation fan is started to balance the heat generated by the test specimen. The aging cabinet is divided into product area and load area

2. PID SSR temperature control system: Automatically adjust the heat generation of the heating tube to achieve temperature balance based on the temperature changes inside the specimen box, so that the heating amount of the system is equal to its heat loss and reaches temperature balance control, thus enabling long-term stable operation; The fluctuation of temperature control is less than ± 0.5 ℃

3. The air transportation system adopts a three-phase asynchronous electronic multi wing wind turbine, which is composed of a wind drum; It has high wind pressure and uniform wind speed, meeting the requirements of uniformity at each temperature point

4. High precision PT100 platinum resistor is used for temperature collection, with high accuracy in temperature collection

5. Load control, the load control system provides two functional options: ON/OFF control and timing control to meet the different testing requirements of the product

(1) ON/OFF Function Introduction: Parameters such as switch time, stop time, and number of cycles can be set. The test product can be switched on and off according to the system's setting requirements, and the cycle control for stopping can be achieved. After the aging cycle reaches the set value, the system will automatically sound and light prompts

(2) Timing control function: The system can set the running time of the test product. When the load starts, the product's power supply starts timing. After the actual timing time reaches the set time by the system, the power supply to the product stops, and the system automatically prompts with sound and light

6. Safe and stable system operation: Adopting PLC and industrial grade touch screen control system, it runs stably, has strong anti-interference ability, convenient program changes, and simple wiring. A comprehensive alarm protection device (see protection mode), real-time system operation status, with automatic temperature data maintenance function during operation, for querying temperature historical data during product aging. The data can be copied to the computer through USB interface for analysis (in Excel format), with historical data curve display function, intuitively reflecting the temperature changes in the product area during the product testing process, And its curve can be copied to the computer in BMP format through a USB interface, making it convenient for operators to make test product reports. The system has a fault query function, and the system will automatically record the alarm situation. When the equipment malfunctions, the software will automatically pop up an alarm screen to indicate the cause of the malfunction and its solution; And stop supplying power to the test product to ensure the safety of the test product and the equipment itself, while recording the fault situation and occurrence time for future maintenance.

Aging cabinet chamber structure and materials used

3.1 Box Material: The outer box is made of SS41 # medium carbon steel plate, which has been treated with phosphate film salt and then sprayed with computer gray;

3.2 Interior and air duct materials: SUS304 # mirror stainless steel is used;

3.3 Insulation material: ultra-fine glass wool, 80mm insulation layer;

3.4 Exhaust in load area and testing area: 4“（ ф 101.6mm), large exhaust volume:>1200m/h, equipped with automatic exhaust adjustment device; Calculated based on residual heat air volume: 24 products * 400W heat generation/unit=9600W heat generation;

3.5 Air inlet: 4“（ ф 101.6mm), install an automatic air intake adjustment device;

3.6 Air circulation device: large capacity specially designed high-temperature resistant long shaft motor, stainless steel multi wing centrifugal fan wheel;

3.7 Observation window: W430 * H1380mm, double-layer high-temperature tempered glass.

3.8 Gate: Adopting a push-pull form.

3.9 Heating method: High temperature resistant stainless steel electric heater;

Dongguan Xinhang Instrument Equipment Co., Ltd. adheres to the business philosophy of "survival through quality, development through innovation, market guidance, and service as the purpose", and is willing to cooperate sincerely with colleagues from all walks of life to create brilliance together.