11 results about "Cone calorimeter" patented technology

The invention provides an ancient building adaptive composite fire detection alarm model construction method, and relates to the field of fire detection, and the method comprises the following steps: firstly, carrying out on-site survey to obtain an ancient building structure and internal decoration combustibles and layout, and employing a cone calorimeter to measure the combustion performance parameters of building materials and decorations; then, FDS software is adopted for conducting three-dimensional modeling and computational grid division, boundary and condition setting, fire point and fire source power setting, detection point position setting and the like on the internal space and display of the historic building, and data sets of CO concentration, CO2 concentration, O2 concentration, smoke shading rate and temperature parameter changes in the fire occurrence and development process are obtained through numerical simulation calculation; and finally, learning and training the initial multi-characteristic parameter data of the fire through a BP neural network, continuously correcting and optimizing in application, and constructing a self-adaptive fire alarm model, thereby more accurately and comprehensively sensing the fire of the ancient building, and realizing accurate early warning of the early fire.

The invention provides a polyolefin base material standard sample for measuring the flame retardant property of a cable material and a preparation method of the polyolefin base material standard sample, and belongs to the field of standard preparation. The sample adopts polyolefin resin as a matrix, and an inorganic flame retardant subjected to silane surface treatment, an anti-dripping agent and the like are added to adjust the combustion rate, so that the product can meet the combustion range corresponding to an actual test. The inorganic flame retardant modified by the silane coupling agent can promote the dispersion of the inorganic flame retardant in the resin and the affinity of the inorganic flame retardant and the resin, improves the uniformity of the material, and also can ensure the structural stability of the material in the combustion process; meanwhile, the lubricant is added, so that the material uniformity and dispersity are improved, and the uniformity and stability of combustion data are ensured; the anti-dripping agent is added, so that unstable data between parallel tests due to the dripping phenomenon of the material during combustion is avoided. The polyolefin-based combustion test standard sample can be applied to calibration of combustion tests of a cone calorimeter, a smoke density experimental box and the like and comparison of experimental data in the same row.

A water-based coating composition capable of forming a coating film with excellent heat insulating properties and non-flammability, and a method for coating buildings using the same. The present invention provides a water-based coating composition containing (A) a water-dispersible resin, (B) hollow particles, and (C) water, wherein the thermal conductivity of a coating film formed from the water-based coating composition is 0.2 W / m K or less, and the total heat generation rate of a 1 mm coating film formed on an aluminum plate measuring 99±1.0 mm x 99±1.0 mm x 0.8 mm for 20 minutes using a cone calorimeter is 8.0 MJ / m 2 A water-based coating composition characterized by:

To provide a water-based coating composition capable of forming a coating film excellent in heat insulation and incombustibility, and a method for coating a building using the same.SOLUTION: A water-based coating composition comprising (A) a water-dispersed polymer, (B) hollow particles, and (C) water, wherein a coating film formed from the water-based coating composition has a coefficient of thermal conductivity of 0. 2W / m·K or less, and a total calorific value of a test plate having a coating film thickness of 1mm formed on an aluminum plate having dimensions of 99 ± 1. 0mm * 99 ± 1. 0mm * 0. 8mm in a cone calorimeter test for 20 minutes is 8. 0MJ / m2 or less.SELECTED DRAWING: None

1. Name of the product in this design: Cone Calorimeter (Version A2). 2. Purpose of this design: To measure the heat generated during fire experiments. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

An optical fiber cable that includes subunits is provided. The cable has an outer jacket having a thickness of at least 2.0 millimeters and that is made from a fire retardant polymer material having a PHRR value of 222 kw / m2 when tested in a cone calorimeter measured according to ASTM E1354 with a heat flux of 50 kW / m2. The cable meets the requirement of UL 1666 burn test for riser cables and the requirements of EN 50399 burn test for CPR class Cca cables.

Calorimetry Device A calorimetry device (1), particularly for studying the fire behavior of materials, configured to allow the guided movement of at least one cone calorimeter (2) between a first position (P1) located away from a sample to be tested and a second position (P2) in which the cone calorimeter (2) is positioned opposite said sample to be tested. Figure for abbreviation: Fig. 1

The invention belongs to the technical field of furniture flame-retardant material performance detection, and discloses a method for detecting the application effect of a furniture flame-retardant material in a typical scene, and the method comprises the following steps: carrying out material pyrolysis combustion detection, simulating a fire scene through a cone calorimeter, and monitoring the internal temperature and combustion critical point of a PMMA sample; performing a fire spread test, igniting the flame-retardant product on an adjustable ventilation platform, and synchronously collecting flame parameters and surface temperature; and a data analysis stage: fusing the data, and evaluating the flame-retardant efficiency. According to the method, a high-precision thermocouple network and a multi-camera synchronous acquisition technology are adopted, collaborative analysis of internal heat conduction and external flame behaviors of the material is realized, limitation of single scene detection is solved, comprehensiveness and data reliability of flame retardant performance evaluation are improved, and standardized technical support is provided for research, development and application of furniture flame retardant materials. The method can effectively quantify the flame retardant efficiency, and has a wide application prospect.

The present application provides a filtering device, a cone calorimeter, and a method for analyzing flue gas particles. The filtering device is used to selectively filter flue gas particles released by material combustion during the cone calorimeter test process. The filtering device is installed between the sampler and the filter in the flue gas pipeline of the cone calorimeter. The filtering device includes a filter cylinder and a first filtering structure and a second filtering structure provided on the filter cylinder. The flue gas particles are filtered sequentially through the first filtering structure and the second filtering structure. The first filtering structure is used to filter flue gas particles with a diameter greater than the first diameter. The second filtering structure is used to filter flue gas particles with a diameter not less than the second diameter, and the second diameter is smaller than the first diameter. The filtering device provided in the present application can make the test results of the cone calorimeter more comprehensive and accurate in characterizing the flue gas release behavior during material combustion.

An optical fiber cable that includes subunits is provided. The cable has an outer jacket having a thickness of at least 2.0 millimeters and that is made from a fire retardant polymer material having a PHRR value of 222 kw / m2 when tested in a cone calorimeter measured according to ASTM E1354 with a heat flux of 50 kW / m2. The cable meets the requirement of UL 1666 burn test for riser cables and the requirements of EN 50399 burn test for CPR class Cca cables.

The invention relates to a dual heat release rate measuring platform integrating a temperature difference method and an oxygen consumption method and a measuring method thereof. The measuring platform comprises an oscilloscope, thermocouple assemblies, a cone calorimeter, a sample holder and an objective table, the sample holder is fixed on the objective table, the cone calorimeter is located right above the sample holder, and the thermocouple assemblies are dispersedly arranged on the pipe wall and the center of a smoke pipeline of the cone calorimeter and connected with the oscilloscope. The measured temperature is corrected through the oscilloscope and the thermocouple assembly, the relation curve of the temperature difference and the heat release rate can be calculated and drawn in real time after data processing, the delay defect of a traditional cone calorimeter is overcome, heat release rate parameters better conforming to reality can be obtained, and it is ensured that the test result is more accurate and reliable. The measuring platform has the advantages of simple structure, convenience and quickness in construction, low cost, easiness in operation and the like.