Horizontal furnace for fire resistance test of building components

1. Scope of application:

All kinds of steel structure fireproof coatings suitable for indoor and outdoor use of buildings (structures) determine their fire resistance characteristics under standard fire conditions.

2. Compliant standards:

2.1 Comply with ISO834-1:1999 test standard “Fire-resistance tests — Elements of building construction—Part 1: General requirements”;

2.2 Comply with the test standard of ISO/TR 834-3:1994 "Fire-resistance tests — Elements of building construction—Part 3: Commentary on test method and test data application";

2.3 Comply with the test standard of ISO823-5:2000;

2.4 Comply with the test standard of GB/T14907-2018 "Fire resistive coating for steel structure".

4. Project installation and overall planning:

4.1 Overall test planning: For the sake of safety, the overall laboratory is planned in three parts: 1. The gas and air room is a separate room; 2. The control room and the observation room are a separate room; 3. The test area is placed in a large space , to be well ventilated on all sides;

4.2 Gas control part:

4.2.1 The test furnace uses 50kg filling combined liquefied petroleum gas as fuel, divided into two groups with a total of 16 bottles. Using the automatic control circuit, when the pressure is lower than the set value during the test, the liquid phase switching valve will automatically switch to another group, which can prevent the gas from being suddenly exhausted during the test and interrupt the test.

4.2.2 In order to fully burn the gas after gasification, an air-fuel proportional valve is added to automatically adjust the ratio of air and gas to achieve the best combustion calorific value.

4.2.3 Burner: with automatic alarm device for non-ignition and flame extinguishing.

4.2.4 Burner (including: ignition, burner, flame detection, temperature control and other devices): a total of 20 sets.

4.2.5 Fuel consumption: 150~360M3/h. The fuel gas consumption can meet the test heating speed control, and contains a variety of working modes to adapt to the corresponding economical gas consumption in various working modes.

4.3 Test environment requirements:

4.3.1 Water: tap water pipe;

4.3.2 Electricity: AC380V, three-phase five-wire system, 50Hz, power 65kw;

4.3.3 Gas: 16 bottles of liquefied petroleum gas can be filled with 50kg. Eight bottles of one component and two sets. The fuel gas consumption can meet the test heating speed control, and contains a variety of working modes to adapt to the corresponding economical gas consumption in various working modes;

4.3.4 Required environment: good ventilation and easy operation. There are no flammable and explosive materials around.