Scope of Application

【Operating Instructions】

The thermal insulation efficiency test for steel structure fire retardant coatings is a newly added test item in the 2018 version of the national standard GB14907 "Steel Structure Fire Retardant Coatings"; it was not present in the 2002 version. Consequently, the Thermal Insulation Efficiency and Fire Resistance Limit Test Furnace became a key focus for equipment upgrades in related enterprises and institutions in 2019. According to GB14907-2018, the requirement for the thermal insulation efficiency deviation of indoor/outdoor steel structure fire retardant coatings is ±15%.

YS-GJL-3 Building Component Fire Resistance Test Horizontal Furnace

【Scope of Application】The thermal insulation efficiency test for steel structure fire retardant coatings is a newly added test item in the 2018 version of the national standard GB14907 "Steel Structure Fire Retardant Coatings"; it was not present in the 2002 version. Consequently, the Thermal Insulation Efficiency and Fire Resistance Limit Test Furnace became a key focus for equipment upgrades in related enterprises and institutions in 2019. According to GB14907-2018, the requirement for the thermal insulation efficiency deviation of indoor/outdoor steel structure fire retardant coatings is ±15%.

Introduction to the Test Furnace:The Steel Structure Fire Retardant Coating Thermal Insulation Efficiency and Fire Resistance Limit Test Furnace is a specialized instrument developed specifically for testing the fire resistance performance of steel structure fire retardant coatings. It is based on the technical specifications stipulated in National Standard GB14907-2018 "Steel Structure Fire Retardant Coatings" and GB/T9978-2008 (Sections 4 & 5, specifically 5.1 and 5.2).

The furnace features direct touch screen operation and control, eliminating the cumbersome process of connecting to a computer and installing software. The entire testing process is highly automated, offering easy operation and maintenance, with temperature errors strictly below national standard limits.

【Applicable Standards】

• Design Standard: GB14907-2018 "Steel Structure Fire Retardant Coatings"

• Reference Standard: GB/T9978-2008

【Instrument Features】

1. Dual Control System: Supports both Touch Screen and Computer control with wireless connectivity. One computer can control multiple instruments simultaneously, and one instrument can be controlled by multiple computers.

2. Automatic Fault Rejection: Automatically excludes faulty thermocouples from data processing.

3. Full Automation: The entire testing process is fully automated.

4. Real-time Curve Tracking: Automatically plots the test temperature curve in real-time.

5. Pressure Tracking: Automatically plots the pressure curve.

6. Auto-Cooling: Automatically initiates heat dissipation/ventilation upon test completion.

7. Power Failure Protection: Features an anti-mistake power-off mode to prevent damage to the equipment caused by forced power cuts.

8. Auto-Reignition: Automatically reignites the burner if the flame goes out during the test.

9. Auto-Stop: Automatically stops the test when the set temperature is reached.

10. Post-Test Ventilation: Automatically exhausts air to cool down after the test ends.

11. Data Storage: Capable of storing more than 100 sets of data.

12. High Precision: Temperature error is lower than the national standard requirements.

【Technical Specifications】

1. Working Voltage: AC 220V ±10%, 50Hz; Power Consumption: 3KW

2. Furnace Pressure Range: 0-100Pa; Pressure Control: 20±3Pa

3. Air Flow Rate: 0-50m³/min; Measurement Accuracy: ≤±0.5 m³/min

4. Fuel: No. 0 or No. -10 Diesel

5. Test Temperature (Program Heating):

• 60 min: Room Temp → 925℃

• 120 min: Room Temp → 1050℃

• 180 min: Room Temp → 1115℃

• 240 min: Room Temp → 1150℃

• 300 min: Room Temp → 1180℃

• 360 min: Room Temp → 1210℃

6. Equipment Accuracy:

• Furnace Temperature Thermocouples: 4 units (High Precision)

• Unexposed Surface Thermocouples: 2 units

• Specimen Unexposed Surface Temperature: ±4℃

• Control Mode: Selectable between Average Temperature Control or Individual Control.

7. Temperature Sensor: Armored Nickel-Chromium/Nickel-Silicon (Type K) Thermocouple; Accuracy Class: Class II

8. Heating Method: Fully automatic spray heater

9. Cooling: Automatic exhaust ventilation for cooling after test completion.

10. Storage: Capable of storing 100 sets of data.

11. Timing Range: 0-360 min; Timing Accuracy: <±2s

12. Specimen Size: 5005006mm

13. Overall Dimensions: 1.6m * 1.6m * 1.6m