Building materials monomer products burning machine
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Building materials monomer products burning machine is used to determine the construction materials or products (not including floor materials and the EC resolution of 2000/147 / EC (it and pointed out that the products) in the monomer (SBI) combustion test fire response performance of the size of test device. The device USES the computer interface to control the test equipment directly, which greatly saves the manpower and material resources.
Application
This instrument belongs to the building combustion performance grading test instrument. It can be used to assess the grade of building materials.
The gas circuit of the whole equipment is good.
High degree of automation. Easy to learn.
System modular design, easy to maintain.
Computer data acquisition system can automatically record the oxygen concentration and the concentration of carbon dioxide, smoke density, flue temperature, environment temperature and humidity (data collection interval 3 s), can be automatically calculated the heat release quantity, THR600s, index and smoke production rate of gas production rate.
Standards
GB 8624-2012: building materials and product combustion performance rating
GB/T 20284-2006: "single combustion test for building materials or products"
EN 13823:2002 :"building products fire response - single combustion test method for building products without paving materials"
ISO – Plastics—Smoke Generation, Part 2: Single-Chamber Test for Optical Density
ASTM E662-2014 – Standard Test Method for Specific Optical Density of Smoke Generated by Solid Materials
BS 476-6:1989 – Fire Tests on Building Materials: Method of Test for Fire Propagation
EN 13501-1:2007 – Fire Classification of Construction Products and Building Elements, Part 1: Reaction to Fire
Principles
Consisting of two right angles to the vertical wing exposed to the bottom of the right Angle of the samples produced by the main burner flame, the flame is produced by propane gas combustion, propane gas through the sand box of burner and produce (30.7 + 2.0) kW heat output. The combustion performance of the sample was evaluated by the test process of 20min. Performance parameters include: heat release, smoke production, flame propagation and combustion of particulate matter.
Parameters
| Item | Specification |
|---|---|
| Combustion laboratory size | 3000mm * 3000mm * 2800mm |
| Outline dimensions of smoke pipe in combustion chamber | 5200mm * 3000mm * 1800mm |
| Control box outline dimension | 800mm * 1200mm * 1500mm |
| Smoke extraction speed | 0.50m³/s ~ 0.65m³/s |
| Temperature measurement device | Imported K-type armored thermocouple, 3mm diameter |
| Temperature measurement precision | ±0.5℃ |
| Accuracy of pressure sensor | (Not specified) |
| Test time | 1560s; Time recording system accuracy: 0.1s |
| Oxygen analysis (paramagnetism) range | (0-25)% |
| Oxygen analysis response time | <12s |
| Oxygen analysis noise drift (within 30min) | ≤100 x 10⁻⁶ |
| Oxygen analysis data collection and output resolution | >100 x 10⁻⁶ |
| Carbon dioxide (IR) measurement range | (0-10)% |
| Carbon dioxide measurement linearity | >1% of full range |
| Carbon dioxide data collection and output resolution | >100 x 10⁻⁶ |
| Detector color standard accuracy | ±5% |
| Detector output linearity (transmittance) | <3% |
| Detector absolute penetration rate | <1% |
| Test environment temperature | (10 ~ 30)℃ |
| Control cabinet power supply voltage | AC 220V 50HZ |
| Maximum equipment power | 11.5KW |
| Alarm condition | Flue gas pipeline temperature >400℃ |
| Sample adjustment status temperature | (21-25)℃ |
| Sample adjustment status humidity | (45-55)% RH |
| Distance of test piece from opposite side | 2100mm |
Features
1. the computer data acquisition system can automatically record the oxygen concentration, concentration of carbon dioxide, smoke density, flue temperature, environment temperature and humidity (data collection interval 3 s), can be automatically calculated the heat release quantity, THR600s, gas production rate index and smoke production rate;
2. The combustion chamber shall be installed with a screw fixing cabinet, which can be disassembled; The thermal insulation exhaust duct, the insulation gas cover and the thermal collector adopt double layer insulation function to ensure the accuracy of data collection.
3. The combustion control system adopts the gas solenoid valve to ensure the safety of the equipment;
4. High degree of automation and easy to learn;
5. System modular design for easy maintenance.
Electronic hardware:
The control core adopts imported omron PLC and temperature expansion module to reduce interference and improve stability.
The output terminal adopts the new solid-state contactless switch device of schneider, with high reliability, low noise and fast switching speed.
The data interface adopts rs-232 standard serial port communication, stable data, high reliability and easy to use.
Test process safety: the combustion control system adopts the gas solenoid valve, and the igniter adopts the automatic ignition method.
Software part:
Friendly software interface, easy to operate.
The software control system includes automatic control and manual control.
Automatic control mode can run automatic control equipment, automatic detection, automatic data collection, automatic display test curve, completion test, at the same time also can automatically generate test results, the automatic generation of test report, etc.
The manual control mode can help the debugging function of the equipment.
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