The intelligent steady-state heat transfer property measurement system is mainly used to measure the insulation performance of building components, similar industrial components, walls, and glass products. Obtain physical parameters such as thermal conductivity and heat transfer coefficient. It is also used to test the thermal conductivity and heat transfer performance of homogeneous and heterogeneous materials such as plastic, rubber, glass, fiber, benzene board, extruded board, foam concrete, hollow glass, wooden board, and various building materials. The equipment utilizes a computer interface to achieve fully automatic control of the instrument, data acquisition and processing, as well as calculation, display, and printing of heat transfer coefficients. The measurement time is short, the speed is fast, the data is accurate, the degree of automation is high, and the noise is low. On the software control interface, real-time display of temperature and heat flux measurement values.
Product features
1. The insulation layer of the cold and hot chambers is made of extruded panels with excellent insulation materials, and there are no air interlayers inside the equipment, further improving the insulation performance of the testing system.
2. The bottom of the testing equipment is equipped with casters and retractable feet, which can be easily moved and the horizontal angle of the equipment can be adjusted, increasing the convenience of testing operations.
3. The shell of the electrical control box adopts the spray coating electrostatic powder spraying method, which makes the appearance quality of the chassis excellent, with strong mechanical strength, corrosion resistance, and no rusting.
4. The cold box is equipped with an automatic temperature limiting heating belt, which has high power, fast heating, and waterproof function, increasing the service life of the equipment.
5. The heating box adopts a resistance heating strip, which has stable heating power and stable heating temperature. The unique design of the hot box and cold box enhances the balance of temperature in each part.
6. Our company has specially developed and designed equipment that can measure the heat transfer coefficient separately to meet the requirements of different customers. Based on this, it can also be upgraded to equipment that can simultaneously measure the heat flow parameters.
7. The refrigeration part adopts integrated refrigeration unit equipment, which has stable refrigeration performance, long continuous working time, and high refrigeration efficiency.
8. The temperature measurement accuracy is high, and multiple temperature sensors are uniformly installed on the cold and hot surfaces of the specimen. During the testing process, more accurate measurement of temperature points at various positions of the specimen is achieved.
9. Refrigeration equipment has low noise and long service life. During the experiment, the refrigeration speed is fast.
10. The control core adopts an integrated design of imported Omron PLC and temperature expansion module, which can effectively reduce interference and improve equipment stability.
11. The output end adopts Schneider's new solid-state contactless switching device, which has high reliability, long lifespan, low noise, fast switching speed, strong anti-interference ability, and improves the service life and safety of the equipment.
12. The control method is PID control, which adjusts the PID parameters through software self-tuning to ensure the tracking accuracy of the test set temperature values of the hot box and cold box.
13. All system temperatures are automatically controlled: the hot box, cold box, and ambient temperatures are all controlled by the computer system, allowing the system to quickly enter the testing state
14. Automatic temperature monitoring of each temperature measurement point in the system: The temperature collection, real-time display, dynamic display of temperature curve, and temperature calculation of the temperature measurement points in the test equipment (cold box, hot box, and cold and hot surface of the specimen) are all automatically controlled and managed by the computer.
15. Computer interface, easy to operate, software written in Visual Basic 6.0, strong development and compatibility. It can automatically control equipment operation, detect, collect, display test curves, and complete experiments. At the same time, it can also generate test results, test reports, save data, display data, and query historical data. It can also export and print data, and save test curves in the form of images.
Applicable standards
GB/T 13475-2008 "Determination of steady-state heat transfer properties of insulation - Calibration and protective hot box method"
JG/T 10294-2008 "Determination of steady-state thermal resistance and related characteristics of insulation materials - Protective hot plate method"
Basic parameters
1. Sample size: 1880mm (width) x 400mm (maximum thickness) x 2000mm (height)
2. Measurement area: 1200mm x 1200mm
3. Power metering: Level 0.5
4. External wall thermal resistance value:>3.5 (m2? K) /W
5. Thermal resistance of the specimen: The thermal resistance of the specimen shall not be less than 0.1 (m2)? K) / W
6. Maximum heating power of the hot box: 0.5kW
7. Measurement box control temperature: ambient temperature~50 ℃
8. Control temperature of protective box: ambient temperature~50 ℃
9. Cold box control temperature: -20 ℃~ambient temperature
10. Temperature control accuracy: 0.3 ℃
11. Power supply voltage: AC380V three-phase five wire system