The walk-in constant temperature aging room is for the testing requirements of some enterprises. It is necessary to test some products and objects in a large space, most of which are mainly for testing electrical and electronic products. Qinzhuo Environmental Testing Technology has its own patents and experience in the development and design of walk-in aging rooms.
The aging room is also called the burn-in computer room, which is simulated for high-performance electronic products (such as computer complete machines, displays, terminals, automotive electronic products, power supplies, motherboards, monitors, exchange chargers, etc.) A high temperature and harsh environment testing equipment is an important experimental equipment to improve product stability and reliability, and an important production process for various manufacturers to improve product quality and competitiveness. This equipment is widely used in power electronics, computers, communications, Biopharmaceutical and other fields.
The outer frame structure of this equipment is composed of double-sided color steel insulation warehouse board, the size is customized according to customer requirements, and configured according to different requirements. The aging room is mainly composed of cabinet, control system, wind circulation system, heating system, time control system, test load, etc. Through the aging test, defective products or defective parts can be detected, which provides effective means for customers to quickly identify problems and solve problems, and fully improves customer production efficiency and product quality.
Because the performance and environment of the aging room must ensure the temperature, power quality, load, working time, safety and habits of the operator, etc., a qualified aging equipment should be a safe, reliable and efficient Energy-saving, fully functional and expandable equipment.
Walk-in constant temperature aging room / structural features
The aging room is a professional equipment. Under the design of capacity and specifications, it must meet the current needs of various products, and it must also ensure the stability of its own work. Therefore, it must be of high quality, safe and reliable, and face rapid growth in the future market. Development needs, it should be flexible, open, with certain scalability. The following design principles were followed during design:
1. Practicability, stability and advancedness:
Using advanced and mature technology and equipment to meet the current needs of customers and taking into account the needs of future products, the most stable and practical components and materials are used as much as possible.
2. Safety and reliability:
The dual alarm system (acoustic and optical) for abnormal aging process is adopted to fully protect the safety of products and surrounding environmental equipment.
3. Flexibility and scalability:
The specific requirements put forward by the customer must be met in the design. For the future product demand, it also provides a certain space. Therefore, the aging room has good flexibility and scalability. Can support aging of multiple models.
4. Stability of the project:
In the design of the aging room project, the overall project and equipment are of a modular structure, which is equivalent to the project can be carried out in phases, and each phase of the project can be seamlessly combined without causing repeated construction and waste.
5. Economic and investment protection:
Construct aging houses with high cost performance to maximize the capital investment. Can keep the system running at a lower cost and with fewer personnel. Meet the product's requirements on load and environment. Improve efficiency. Keep and extend the actual application capacity of the equipment as much as possible, and make full use of the investment in capital and technology.
6. Manageability:
Due to the certain complexity of the aging room, as the requirements for the aging room continue to increase, the management tasks must be increasingly heavy. Therefore, in the design process, we must consider the future management, such as: the detachability of a single load, the adjustability of the load, the scalability of the power system, the integration of the control system, the implementation of the management of the aging room The most user-friendly design.
Walk-in constant temperature aging room / main technical indicators
1. Main technical parameters:
1.1 Temperature range: normal temperature ～ 85 ℃; (adjustable)
1.2 Temperature fluctuation: ± 0.5 ℃;
1.3 Temperature deviation: ± 3 ℃; (under no-load conditions)
1.4 Effective volume: customer requirements
1.5 Room size: customer requirements
1.6 Operation mode: digital display constant operation
1.7 Heating power: according to volume
1.8 Installation power supply: 380V; 50 Hz;
2. Control system and safety protection measures:
2.1 The electric control design refers to the "Low-Voltage Power Distribution Design Code" GB50054-95, "Power Supply and Distribution Design Code" GB5002S2-95, "Electrical Device Installation Engineering Grounding Device Construction and Acceptance Code" GB50169-92 to standardize the electric control design.
2.2 Control system integrated aging function design. Designed to control the electrical cabinet, the time, temperature, and various operating switches required for aging can be operated on one control electrical cabinet; the electrical cabinet panel has a beautiful design and simple operation.
2.3 The aging process can be controlled fully automatically, with some abnormal self-processing functions, which makes the operation automatic and simple.
a. Turn off the power supply of circulating fan, electric heating, etc .; the aging room will cool down by itself and continue aging. When the total aging time is up, the yellow warning light will be on to inform the completion of aging.
b. Product over-temperature protection control. When the temperature exceeds the upper limit of the aging temperature of the product, the power supply of the product is automatically cut off to protect the product from over temperature aging and affect its performance; at the same time, the buzzer alarm and the red warning light are on. Normal temperature automatically restores power supply.
c. Heater PID control. SSR is used in combination. After the temperature reaches the set temperature, the power of the heater is automatically adjusted steplessly according to the need. The device has no mechanical loss and the indoor temperature stability is high.
2.4 With multiple protection functions, safe and reliable.
a. Electric heating to prevent dry burning, when the fan is faulty or the temperature in the air pipe is too high, the entire power supply will be automatically cut off, and the alarm will alarm.
b. The linkage design of electric heating and fan, when the fan fails to start, the heater cannot be started separately.
c. Heater anti-MC adhesion design. SSR has no contact shut-off, no mechanical action and loss, and no accident.
d. The heater is connected with high temperature resistant wire.
e. Install explosion-proof lighting lamps indoors to increase the life of the bulb and prevent external forces from breaking.
f. The warehouse body is made of flame-retardant thermal insulation material, which has good thermal insulation performance and high safety factor.
g. Over-temperature sound and light alarm function: when over-temperature occurs during the aging process, the red light will be on and the buzzer will sound.
3. Description of room structure and materials:
The box material adopts EPS sandwich panel, and the combustion performance of the product meets the requirements of Class B2 of "Combustion Performance Classification of Building Materials".
3.1 Wall material: The five sides of the library body are assembled with double-sided color steel insulation board (EPS computer color), fixed support aluminum beam, aluminum profile board edge; no ground treatment, sealing glass glue at the joint, Effectively ensure the tightness of the room, and place the aging car in the room.
The external wall material: wall panel: color steel plate 0.5mm thick;
Ceiling: color steel plate 0.5mm thick;
Door plate: 0.5mm thick color steel plate;
Inner wall material: wall panel: color steel plate 0.5mm thick;
Ceiling: color steel plate 0.5mm thick;
Door plate: 0.5mm thick color steel plate;
3.2 Observation window: Tempered glass, installed on the door, can observe the indoor working conditions at any time during the aging process.
3.3 The heater is placed in the circulating air duct on the roof of the aging room, and fireproof and heat insulation materials are added around. Using PID temperature module control, after the temperature reaches the required temperature of the product, the heater power is automatically adjusted according to the indoor temperature fluctuation to match the thermal insulation of the thermal insulation library board, so that the indoor temperature is accurately stabilized at the set temperature value.
4. Air conditioning system
The wind power piping system complies with the GB50243-2002 standard for Construction Quality Acceptance Code for Ventilation and Air Conditioning Engineering.
4.1 The hot air circulation air system adopts the concept of down-feed and back-cycle, and large-capacity fans are forced to carry air.
4.2 Wind power is divided into exhaust system and circulating wind system. The two systems work independently.
4.3 The exhaust system is to discharge excess heat indoors to the outdoor when the indoor temperature exceeds the temperature required by the product
4.4 The exhaust system adopts the design concept of the combination of air duct and fan, and the circulating fan continuously makes convection and circulation movement for the room air; ensuring the uniformity of the indoor temperature.
5. Measurement and control system
5.1 Temperature measurement: Pt100 platinum resistance;
5.2 Control instruments: imported, high-precision digital display temperature controller, PID adjustment, accuracy 0.1;
5.3 Control output: solid state relay SSR output;
5.4 Electric control box: one set. The main electrical appliances are imported from Schneider and Omron.
Walk-in constant temperature aging room / conditions on site
1. Temperature: 15 ℃ ~ 35 ℃
2. Relative humidity: not more than 85% RH
3. There is no strong vibration or strong electromagnetic field around
4. There is no high concentration of dust and corrosive substances around
5. No direct sunlight or direct radiation from other heat sources
6. There is no strong airflow around, when the surrounding air needs forced flow, the airflow should not be directly blown onto the box
7. The test chamber should be placed steadily and kept level
8. There should be a certain distance around the test chamber to facilitate maintenance operation
9. The installation site is well ventilated
10. Good grounding
Walk-in constant temperature aging room / service commitment
In summary, through a series of technical analysis, we have fully understood the technology and performance of the walk-in constant temperature aging room. Qinzhuo Environmental Testing Technology reminds users that when choosing a cooperative manufacturer for the above-mentioned large-scale test projects, please select a manufacturer with strength and after-sales service. The principle of annual warranty and life-long maintenance allows customers to get peace of mind with test equipment and technology.
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