EN 1363-1 ISO 834 Vertical Furnace For Fire Resistance Of Building Components

Fire Testing Furnace Production introduction:

Vertical fire resistance test furnaces are a method to quantify the ability of products and materials to withstand high temperatures in a vertical position. The test furnace can be used to evaluate the fire resistance of products such as walls, doors, dampers, connectors and penetrating sealants. The test evaluates a range of functions including load bearing capacity, flame control, heat transfer, etc.

The design of the fire test furnace complies with the relevant requirements of EN1363-1, 1363-2 hydrocarbon curve and ISO 834 standards for fire resistance tests of building material components, and is similar to the relevant regulations of other countries. The equipment is specially designed and has been improved over the years to form a reliable and accurate method for testing various sample configurations and necessary components of the combustion chamber, on which various types of restrictive frames containing samples can be placed. The equipment controls the reaction of the sample to heating under specific time, temperature and pressure conditions to evaluate specific performance standards. The furnace wall will be sprayed with Hammer Blue heat-resistant paint and the pipeline system will be configured according to current regulations. The furnace test temperature is up to 1250℃.

Fire Testing Furnace Standard

1. ISO 834:This standard specifies the temperature variation over time in the furnace during the fire test, and is applicable to the fire resistance test of building components (such as walls, doors, windows, etc.) in the vertical direction. The test needs to simulate the fire environment, and evaluate the integrity, thermal insulation and other indicators through parameters such as temperature and pressure.)

2. ISO 3008/3009:It is specifically for fire resistance tests of components such as doors and roller shutters, and evaluates their fire resistance limit and integrity in vertical furnaces.

3. EN 1363-1: General requirements for fire resistance tests, covering the test methods of vertical furnaces.

4. EN 1364-1: Fire resistance test of non-load-bearing walls; EN 1365-1: Fire resistance test of load-bearing walls.

5. EN 1366 Series: Fire resistance evaluation of special components such as ventilation ducts and fire dampers.

6. IMO hydrocarbon curve standard:Used for fire resistance testing of materials in ships and marine engineering, simulating the high temperature environment of hydrocarbon fires.

Fire Testing Furnace Structural features:

• Fire resistance test furnace, the space inside the furnace is 3000mm (W) x 3000mm (H) x 1300mm (D). The lining is made of 1400 grade insulating bricks, refractory cast blocks and slag plates. The furnace roof is paved with special-shaped bricks and lined with refractory materials in situ.
• Diatomaceous earth insulation and super insulation low temperature materials are applied in some areas, 42% dense alumina refractory bricks are used as much as possible in the hazardous area and all areas suitable for cement connection in the base of the combustion chamber. The lining will provide sufficient insulation during the 6-hour high temperature test.
• Customized fixtures can be used to fix vertical test samples for testing
• High temperature lining made of refractory insulation bricks, refractory cast blocks and slag plates
• Furnace roof is paved with special-shaped bricks and lined with refractory materials in situ
• Furnace jacket uses low-carbon steel plate, reinforced with C-channel steel and I-beam, and steel parts solve the problem of thermal deformation
• Sample fixing frame is installed on the front of the furnace and fixed by four sets of door clamps
• Cold side is lined with inorganic fiberboard, hot side is lined with refractory insulation bricks along the wall, and high temperature blocks are laid in situ
• 4 observation ports are located on the wall of the longer side, made of heat-resistant quartz glass, and are cleverly located to facilitate the operator to observe the entire sample during the test
• Lightweight aluminum fiberboard sliding doors are installed in the air-cooled insulation frame. When the observation port is not in use, the sliding door can be used to block the hot air in the furnace
• 12 sets of special luminous flame burners. Each burner is equipped with a flame monitoring device to ensure safe combustion at all times
• Automatic ignition of the burner using a push button switch, igniting the burner according to the preset heat curve, such as BS 476 Part 20-24, EN 1363 and IMO hydrocarbon curve. Manual burner control can ignite the specified burner.
• The three flue floor drains are circular in cross section and each contains an airlock. The three airlocks are circular high-grade stainless steel structures and their shafts are water-cooled. The flue lining here is biodegradable ceramic fiber material.
• The furnace jacket uses low carbon steel plate, reinforced with C-channel steel and I-beam, and the steel parts solve the problem of thermal deformation and are designed into a strong and non-deformed structure. The reinforcement plate provides holes for burners, observation holes, thermocouples, pressure and monitoring points. The steel frame is designed to ensure that its use function has been considered. The durable nature of the equipment ensures its life in the test environment.

Fire Testing Furnace Technical specifications:

Fire Testing Furnace Technical features:

• Thermocouples, location and design in accordance with the latest regulations
The location of the nine thermocouples in the rear wall of the furnace will be specified. In the package of auxiliary accessories, we will supply suitable nickel-iron pipes to support the thermocouples we provide.
• Pressure points, location and design in accordance with the latest regulations
Two nickel-iron tubes are placed on each side of the combustion chamber wall, with the ends of the tubes being in a "T" shape. The pressure points will all be connected to the frequency converter wired on site.
• LP gas industrial high temperature resistant glow soft flame burner
The furnace is in an upright position with 6 burners on the left and right sides of the furnace wall. The burners use liquefied petroleum gas. All flame safety systems, intermittent ignition systems and temperature sensors are equipped.
• Sample lifting and fixing frames
Two sets of frames are used for vertical samples. Pre-cast high temperature resistant blocks are arranged on stainless steel frames to form a high temperature lining. These frames are not load-bearing frames. There is also a separate lifting frame with two side hooks for lifting the sample frames into the furnace. Vertical and horizontal sample frames can be easily fed into the furnace.
• Refractory lined pipes and chimneys
The chimney is made of 9mm thick mild steel with a high temperature lining for the first 6m. The chimney extends into the furnace at least 3 meters above the high temperature top, and the chimney position can also be designed according to the required specifications.
• Furnace air intake fan
The combustion air system is pre-extracted and tested before air supply.
• Temperature sensors and pressure gauges
The system is equipped with 9 type K thermocouples, a plate thermocouple, a pressure gauge and an ambient temperature assembly thermocouple.
• Viewing ports
Four are located on the rear wall of the furnace, made of heat-resistant glass, air-cooled, connected to the supply pipe and stainless steel insulation. The alternative to the viewing port is a camera aperture.
• Electric pressure-controlled dampers
The gas will enter the vertical duct at the back of the furnace through three openings and then to a common above-ground flue. The three dampers are motor-driven and control the pressure in the combustion chamber. The dampers are water-cooled and require the customer to provide water supply and drainage.
• Electrical Installation
All solenoid valves, safety control boxes, spark plugs, flame detectors, negative and overpressure switches, electric valves and safety interlock limit switches will be connected to the terminal junction box of the field wiring by our installation engineers.
• PLC and computer control
The PLC system consists of Siemens PLC CPU and Siemens compatible remote I/O. The fire protection data management software is written according to customer requirements to collect and store test data to meet the heating requirements of BS 476 Part 20-24, EN 1363 and IMO hydrocarbon curves. Other standard time temperature curves can also be programmed into the system in advance. The PLC controller contains a built-in operating interface, including the required recording and programming capabilities, and the necessary motor starting device for all system engines. The system is programmed to carry out real-time heating curves and display the real-time boiler control system on the computer screen
• Data recording system using dual recording
The data is recorded on the above computer, and during the test, it displays real-time analysis data of the performance of the test specimen. This device can broadcast its screen display on a standard computer network, and any computer connected to this network can log in to access the test information. This facility can be used to provide test data to an observer in the laboratory. All recorded information is automatically saved to a separate computer.
• Manual Control
The furnace can be operated manually. The complete ignition system is not in any way dependent on the operation of the control computer. Pressing the purge start button ignites the furnace. A series of lights indicates that the purge sequence is progressing correctly. All available burners are ignited once within a pre-set time from their individual burner control panels. If the furnace does not ignite within this period, the system will have to be re-purged. The position of the gas air and damper motors for each zone can be adjusted individually or as a group from the main control. During the test, the safety of the furnace operation is monitored by a group of interlocks, each with its own indicator light. These interlocks are locked so that the interlock that causes the furnace to shut down is captured and remains until the ignition sequence is manually reset. An audible alarm device is also installed.