CN115166133A - Method for calibrating combustion growth rate index and total heat release amount of monomer combustion test - Google Patents
Method for calibrating combustion growth rate index and total heat release amount of monomer combustion test Download PDFInfo
- Publication number
- CN115166133A CN115166133A CN202210818686.XA CN202210818686A CN115166133A CN 115166133 A CN115166133 A CN 115166133A CN 202210818686 A CN202210818686 A CN 202210818686A CN 115166133 A CN115166133 A CN 115166133A
- Authority
- CN
- China
- Prior art keywords
- combustion
- heat release
- rate index
- calibration
- monomer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/12—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using combustion
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
Abstract
The invention discloses a method for calibrating a burning growth rate index and a total heat release amount of a monomer burning test, which comprises the following steps: inputting a set value of a combustion growth rate index for calibration, starting a measuring system and calibrating a flow control system, controlling the input of propane flow for calibration by the calibrating flow control system, igniting a burner and a calibrating burner of the single-body combustion test device, measuring and recording the combustion heat release rate, the total heat release amount and the combustion growth rate index, and respectively comparing the combustion growth rate index and the total heat release amount to judge whether the system meets the calibration requirements. According to the invention, the combustion growth rate index set value and the heat release total calculation value for calibration are respectively compared with the combustion growth rate index and the heat release total measurement value, so that the combustion growth rate index and the heat release total data of the monomer combustion test can be directly calibrated, and the data calculation process and the integrity performance conformance of the monomer combustion test device can be verified.
Description
Technical Field
The invention belongs to the technical field of fire prevention tests, and particularly relates to a method for calibrating a combustion growth rate index and a total heat release amount of a monomer combustion test.
Background
The single combustion test is widely applied to the evaluation of the combustion performance of building materials, is the most main combustion test method used in the classification of the combustion performance of flat-plate materials, is carried out according to GB/T20284 'single combustion test of building materials or products', a single combustion test device is required to be adopted to test a material sample, the data of the combustion growth rate index and the total heat release amount of the sample are finally obtained, the final combustion performance classification is carried out, and whether the material meets the use requirements in engineering or not is determined based on the classification.
The monomer combustion test device carries out related tests based on an oxygen consumption principle, the device collects and discharges smoke in the material combustion process in a centralized manner, and the final combustion growth rate index and the final heat release total amount are calculated by measuring data such as smoke temperature, oxygen concentration and carbon dioxide concentration in a smoke discharge pipeline.
Because the device has high requirements on the precision of the equipment and the calculation process is complex, no better method is available for calibrating the final test data output by the equipment at present. GB/T20284 single combustion test of building materials or products only has a calibration method for equipment part and system response at present, does not have a method for calibrating key parameters of combustion growth rate index and total heat release amount, and can not judge the deviation condition of the final test result.
On the other hand, because the calculation process is complex, it is difficult to have a very convenient verification method for whether the data calculation process and the overall performance of the equipment meet the standard requirements, and this situation causes that various configured single combustion test devices emerge in the current market, and the data deviation of the test results is far away, but the correct evaluation is difficult to be given to the applicability of the equipment.
Therefore, a method for calibrating the combustion growth rate index and the total heat release amount of the monomer combustion test is developed, the calibration and verification of data of the monomer combustion test device are realized, and the method is significant for improving the technical level of the monomer combustion test device in the industry.
Disclosure of Invention
In order to overcome the technical defects, the invention provides a method for calibrating a combustion growth rate index and a total heat release amount of a monomer combustion test.
In order to solve the problems, the invention is realized according to the following technical scheme:
a method for calibrating a burn rate index and a total heat release amount of a monomer burning test comprises the following steps:
inputting a combustion growth rate index set value for calibration in a calibration flow control system;
starting a measuring system and a calibration flow control system of the monomer combustion test device, wherein the calibration flow control system controls the propane gas cylinder to output propane to the calibration combustor according to the combustion growth rate index set value;
igniting a burner of the monomer combustion test device and the calibration burner respectively;
measuring and recording the combustion heat release rate, the total heat release amount and the combustion growth rate index in the combustion process of the monomer combustion test device;
and judging whether the data acquisition and calculation system of the single combustion test device meets the calibration requirements or not according to the comparison result of the combustion growth rate index and the combustion growth rate index set value for calibration and the comparison result of the total heat release amount and the total heat release amount calculation value.
In one embodiment, before the step of inputting the combustion increase rate exponent set value for calibration into the calibration flow control system, the method further comprises the steps of:
mounting the back plate on a monomer combustion experimental device;
placing a calibration burner on a test platform of the monolith combustion experimental apparatus;
connecting the calibration burner with an air outlet of a calibration flow control system;
and connecting the gas inlet of the calibration flow control system with the gas outlet of the propane gas cylinder.
In one embodiment, when the propane cylinder outputs propane to the calibration burner, the flow rate of propane is calculated by the following formula:
Q(t)＝A·FIGRA·(t-B)
wherein: q (t) is the calibrated propane flow at time t (Q =0 if the calculated value is less than 0), in mg/s;
a is a flow calculation coefficient, and the unit is mg/(W & s);
FIGRA is a combustion growth rate index set point, with units of W/s;
t is the duration of the test, calculated from the start of the system, and the unit is s;
b is the time correction in s calculated for the burn rate increase exponent.
In one embodiment, the flow calculation coefficient A is 0.01-0.1 mg/(W.s).
In one embodiment, the combustion increase rate exponent is calculated with a time correction B of 120 to 500s.
In one embodiment, the combustion growth rate index FIGRA setting is 0 to 1000W/s.
In one embodiment, the maximum value of the test duration t is 1500s.
In one embodiment, the total heat release calculation is calculated as follows:
wherein: THR (t) is the cumulative total heat release at time t, in MJ;
FIGRA is a combustion growth rate index set point in W/s;
t is the duration of the test, and is calculated from the start of the system, and the unit is s;
b is the time correction in s calculated for the burn rate increase exponent.
In one embodiment, the determining whether the data acquisition and calculation system of the single-body combustion test device meets the calibration requirement according to the comparison result between the combustion speed increase index and the combustion increase rate index set value for calibration includes:
calculating the average value of the combustion growth rate indexes of 30-1200 s before the flame of the combustion test is completely extinguished
Comparing said average value to said combustion growth rate index set point, FIGRA, if said average value is not greater than said set point
Meets the calibrated combustion growth rate index set value FIGRA
The data acquisition and calculation system of the single body combustion test apparatus is judged to be satisfactory.
In one embodiment, the determining whether the data acquisition and calculation system of the monolithic combustion test device meets the calibration requirements according to the comparison result of the total heat release amount and the total heat release amount calculation value comprises:
if the deviation between the actually measured total heat release value and the calculated total heat release value is in the range of 0-20%, the data acquisition and calculation system of the monomer combustion test device meets the requirements.
Compared with the prior art, the invention has the following beneficial effects:
according to the method for calibrating the combustion growth rate index and the total heat release amount of the monomer combustion test, the calibration burner is added into the experimental device, a combustion growth rate index set value for calibration can be set, the combustion growth rate index is compared with a combustion growth rate index set value for calibration, the total heat release amount is compared with a total heat release amount calculated value, the combustion growth rate index and the total heat release amount data of the monomer combustion test result of the monomer combustion test can be directly calibrated, and the data calculation process and the integrity performance conformance of the monomer combustion test device can be verified.
Drawings
Embodiments of the invention are described in further detail below with reference to the attached drawing figures, wherein:
FIG. 1 is a diagram of an apparatus for calibrating a burn rate index and a total amount of heat release of a monomer burn test in one embodiment;
FIG. 2 is a flow chart illustrating a method for calibrating a burn rate index and a total amount of heat release for a monomer burn test in one embodiment.
Description of the reference numerals:
1. a monomer burning test device; 2. a back plate; 3. a test platform; 4. a burner of a monomer combustion test apparatus; 5. calibrating the burner; 6. calibrating the flow control system; 7. a propane cylinder.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
It should be noted that the reference numbers such as S1, S2 \8230 @, are merely used to distinguish steps from one another, and do not mean that the steps must be executed strictly according to the sequence numbers.
Example 1
The method for calibrating the combustion growth rate index and the total heat release amount of the monomer combustion test provided by the embodiment can be applied to a monomer combustion test device for evaluating the combustion performance of a building material as shown in fig. 1, wherein a test platform 3 in the monomer combustion test device 1 is used for placing a material to be tested in the monomer combustion test, and a propane gas used for combustion is input by connecting a propane gas bottle 7 so as to perform a combustion test on the material used for testing.
In one embodiment, as shown in FIG. 2, a method for calibrating a burn rate index and a total amount of heat released in a monomer burn test is provided, which is illustrated by way of example in the use of the method in the monomer burn test apparatus 1 of FIG. 1, and comprises the following steps:
s1: inputting a combustion growth rate index set value for calibration into the calibration flow control system 6;
s2: starting a measuring system and a calibration flow control system 6 of the monomer combustion test device 1, wherein the calibration flow control system 6 controls the propane gas bottle 7 to output propane to the calibration burner 5 according to the combustion growth rate index set value;
s3: starting a measuring system of the monomer combustion test device 1, and respectively igniting a combustor 4 of the monomer combustion test device and the calibration combustor 5;
s4: measuring and recording the combustion heat release rate, the total heat release amount and the combustion growth rate index of the monomer combustion test device 1 in the combustion process;
s5: and judging whether the data acquisition and calculation system of the single combustion test device 1 meets the calibration requirements or not according to the comparison result of the combustion growth rate index and the combustion growth rate index set value for calibration and the comparison result of the total heat release amount and the total heat release amount calculation value.
As shown in fig. 1, a flow control system is connected between the single-body combustion test device 1 and the propane gas cylinder 7, the flow control system includes a computer, a mass flow meter and an intelligent instrument, a signal line of the mass flow meter is connected with a signal end of the intelligent instrument, a communication end of the intelligent instrument is connected with a calibration flow control system 6 computer, and a combustion growth rate index set value for calibration can be input in the calibration flow control system 6 computer in the single-body combustion test.
When the monomer combustion test is carried out, a test system of the monomer combustion test device 1 and the calibration flow control system 6 are started, the propane gas input from the propane gas cylinder 7 to the monomer combustion test device 1 is subjected to gas flow input control through the connected calibration flow control system 6, and the calibration flow control system 6 carries out propane flow control according to a set combustion growth rate index set value.
After the test system and the calibration flow control system 6 of the monomer combustion test device 1 are started, the burner 4 and the calibration burner 5 of the monomer combustion test device are ignited, and a monomer combustion test experiment of the test material is started.
In the test process, the combustion heat release rate, the total heat release amount, and the combustion growth rate index in the material combustion process in the single body combustion test device 1 are measured, and the measurement data are recorded.
And comparing the combustion growth rate index with a combustion growth rate index set value for calibration, comparing the total heat release amount with a total heat release amount calculated value, and judging whether the data acquisition and calculation system of the monomer combustion test device 1 meets the calibration requirement or not according to the two comparison results.
Specifically, before the test is started, the method further comprises the preparation steps before the test:
mounting the back plate 2 on a monomer combustion experimental device;
placing a calibration burner 5 on a test platform 3 of the mono-block combustion experimental device;
connecting the calibration burner 5 with the air outlet of a calibration flow control system 6;
the inlet of the calibrated flow control system 6 is connected to the outlet of a propane cylinder 7.
Wherein, through placing calibration combustor 5 on the test platform 3 of monomer burning experimental apparatus, can burn simultaneously with the combustor 4 of monomer burning experimental apparatus when the experiment, calibration combustor 5 has connected the propane gas inlet of monomer burning experimental apparatus 1, and when monomer burning is experimental, cooperation flow control system carries out direct calibration to monomer burning test burning growth rate index and heat release total amount data.
In one embodiment, when the propane cylinder 7 outputs propane to the calibration burner 5, the flow rate of propane is calculated by the following formula:
Q(t)＝A·FIGRA·(t-B)
wherein: q (t) is the calibrated propane flow at time t (Q =0 if the calculated value is less than 0), in mg/s;
a is a flow calculation coefficient, and the unit is mg/(W & s);
FIGRA is a combustion growth rate index set point, with units of W/s;
t is the duration of the test, calculated from the start of the system, and the unit is s;
b is the time correction in s for the burn rate increase exponent calculation.
The calculation of the flow of the propane is completed by a calibration flow control system 6 connected with a propane gas bottle 7, and the calibration flow control system 6 controls the flow of the ethane gas in real time according to a flow calculation formula of the propane gas.
In one embodiment, the flow calculation coefficient A is 0.01-0.1 mg/(W · s).
In one embodiment, the burn rate increase exponent is calculated to have a time correction B of 120 to 500s.
In the current related test method, the GB/T20284 standard is used for calculating the FIGRA from 300s, the GB/T20284 standard which is being revised is used for calculating the FIGRA from 120s, and the time correction coefficient B is set to be 120-500 s, so that the method can be ensured to be consistent with the related formula in the GB/T20284 standard, and the aim of invention calibration is fulfilled.
In one embodiment, the combustion growth rate index FIGRA setting is between 0 and 1000W/s.
Wherein, FIGRA is a core parameter, in the current national standard GB 8624-2012, FIGRA less than or equal to 20W/s can meet the requirements of grade A1 of combustion performance, FIGRA less than or equal to 120W/s can meet the requirements of grade A2 and grade B, FIGRA less than or equal to 250W/s can meet the requirements of grade C, and FIGRA less than or equal to 750W/s can meet the requirements of grade D. The FIGRA setting value is set to 0 to 1000W/s, including the above-mentioned various determination values. And the accuracy of each key judgment value is calibrated according to the method, so that the relevant equipment or system can be proved to meet the requirement,
in one embodiment, the maximum value of the test duration t is 1500s.
Specifically, the duration t of the test is controlled to be 0 to 1500s, that is, the burning time of the material in the monomer burning test is controlled to be 1500s or 1500s,
in one embodiment, the total heat release calculation is calculated as follows:
wherein: THR (t) is the cumulative total heat release at time t, in MJ;
FIGRA is a combustion growth rate index set point in W/s;
t is the duration of the test, and is calculated from the start of the system, and the unit is s;
b is the time correction in s calculated for the burn rate increase exponent.
In one embodiment, the determining whether the data acquisition and calculation system of the single-body combustion test device meets the calibration requirement according to the comparison result between the combustion speed increase index and the combustion increase rate index set value for calibration includes:
calculating the average value of the combustion growth rate indexes 30-1200 s before the flame is completely extinguished in the combustion test
Comparing said average value with said combustion growth rate index set point FIGRA,if the average value
Meets the calibrated combustion growth rate index set value FIGRA
The data acquisition and calculation system of the single body combustion test apparatus is judged to be satisfactory.
Specifically, whether the data acquisition and calculation system of the single combustion test device meets the requirements or not is judged according to the comparison result of the combustion speed increase index and the combustion increase rate index set value for calibration, and the combustion increase rate index 30-1200 s before the flame of the combustion test is completely extinguished is calculated
Is more representative of the combustion growth index in the selected combustion time, and the combustion growth rate indexes in that time are averaged, and the average of said calculated combustion growth rate indexes is taken
Comparing with the combustion increase rate index set value FIGRA for calibration, if satisfied
The data acquisition and calculation system of the monomer combustion test device meets the requirements; if not, the data acquisition and calculation system of the monomer combustion test device does not meet the requirements.
In one embodiment, determining whether the data acquisition and calculation system of the unit combustion test device meets the calibration requirements according to the comparison result of the total heat release amount and the calculated total heat release amount comprises:
if the deviation between the actually measured total heat release value and the calculated total heat release value is within the range of 0-20%, the data acquisition and calculation system of the monomer combustion test device meets the requirements.
Specifically, a calculated value of the total heat release amount is obtained through data measurement record calculation, and the calculated value of the total heat release amount is compared with the total heat release amount to judge whether a data acquisition and calculation system of the single combustion test device meets the calibration requirement, if the deviation between the actually measured total heat release amount value and the calculated value of the total heat release amount is within the range of 0-20%, the data acquisition and calculation system of the single combustion test device meets the requirement; if not, the data acquisition and calculation system of the monomer combustion test device is not in accordance with the requirements.
Example 2
In an embodiment, the average of the burn rate index 300s before complete flame extinction is preferably selected for comparative analysis, and if the deviation between the average and the calibrated burn rate index set point is within 10%, the data acquisition and calculation system of the single-unit burn test apparatus is satisfactory. If the deviation between the actually measured total heat release value and the calculated total heat release value is within 10 percent, the data acquisition and calculation system of the monomer combustion test device meets the requirement.
Wherein the flow calculation coefficient A is 0.021 mg/(W.s), the time correction number of the combustion growth rate index calculation is 300s, the combustion growth rate index FIGRA set value is 120W/s, and the maximum value of the test duration t is 1000s.
Example 3
In this embodiment, the average value of the burn rate increase index 500s before the flame is completely extinguished is preferably selected for comparative analysis, and if the deviation between the average value and the set value of the burn rate increase index for calibration is within 20%, the data acquisition and calculation system of the single-body combustion test device is satisfactory. If the deviation between the actually measured total heat release value and the calculated total heat release value is within 20 percent, the data acquisition and calculation system of the monomer combustion test device meets the requirement.
Wherein the flow calculation coefficient A is 0.1 mg/(W.s), the time correction number of the combustion growth rate index calculation is 500s, the combustion growth rate index FIGRA set value is 1000W/s, and the maximum value of the test duration time t is 1500s.
The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed.
Claims (10)
1. The method for calibrating the combustion growth rate index and the total heat release amount of the monomer combustion test is characterized by comprising the following steps of:
inputting a combustion growth rate index set value for calibration in a calibration flow control system;
starting a measuring system and a calibration flow control system of the monomer combustion test device, wherein the calibration flow control system controls the propane gas cylinder to output propane to the calibration combustor according to the combustion growth rate index set value;
igniting a burner of the monomer combustion test device and the calibration burner respectively;
measuring and recording the combustion heat release rate, the total heat release amount and the combustion growth rate index in the combustion process of the monomer combustion test device;
and judging whether the data acquisition and calculation system of the single combustion test device meets the calibration requirements or not according to the comparison result of the combustion growth rate index measured value and the combustion growth rate index set value for calibration and the comparison result of the heat release total amount measured value and the heat release total amount calculated value.
2. The method for calibrating a burn rate index and a total heat release amount for a mono-block combustion test as set forth in claim 1, further comprising the steps of, before the step of inputting a set value of the burn rate index for calibration into the calibration flow control system:
mounting the back plate on a monomer combustion experimental device;
placing a calibration burner on a test platform of the monomer combustion experimental device;
connecting the calibration burner with an air outlet of a calibration flow control system;
and connecting the gas inlet of the calibration flow control system with the gas outlet of the propane gas cylinder.
3. The method for calibrating a burn rate index and a total amount of heat release of a monomer burning test according to claim 1, wherein when the propane gas cylinder outputs propane to the calibration burner, a flow rate of propane is calculated by the following formula:
Q(t)＝A·FIGRA·(t-B)
wherein: q (t) is the calibrated propane flow at time t (Q =0 if the calculated value is less than 0), in mg/s;
a is a flow calculation coefficient, and the unit is mg/(W & s);
FIGRA is a combustion growth rate index set point in W/s;
t is the duration of the test, and is calculated from the start of the system, and the unit is s;
b is the time correction in s calculated for the burn rate increase exponent.
4. The method of calibrating a burn rate index and a total heat release amount for a monomer burning test according to claim 3, wherein the flow calculation coefficient A is 0.01 to 0.1 mg/(W · s).
5. The method for calibrating a burn rate index and a total heat release amount of a mono-block burning test according to claim 3, wherein the time correction number B calculated from the burn rate index is 120 to 500s.
6. The method of calibrating a burn rate index and a total heat release in a monomer burn test as set forth in claim 3, wherein the burn rate index FIGRA is set to 0 to 1000W/s.
7. The method for calibrating a burn rate index and a total heat release in a monomer burn test as recited in claim 3, wherein the maximum value of the test duration t is 1500s.
8. The method of calibrating a burn rate index and a total amount of heat release for a monomer burn test of claim 3, wherein the calculated total amount of heat release is calculated as follows:
wherein: THR (t) is the cumulative total heat release at time t, in MJ;
FIGRA is a combustion growth rate index set point in W/s;
t is the duration of the test, and is calculated from the start of the system, and the unit is s;
b is the time correction in s for the burn rate increase exponent calculation.
9. The method for calibrating the burn rate index and the total heat release amount of the mono-fuel burn test according to any one of claims 1 to 7, wherein the step of determining whether the data acquisition and calculation system of the mono-fuel burn test device meets the calibration requirements according to the comparison result between the burn rate index and the set value of the burn rate index for calibration comprises the steps of:
calculating the average value of the combustion growth rate indexes of 30-1200 s before the flame of the combustion test is completely extinguished
Comparing said average value to said combustion growth rate index set point, FIGRA, if said average value is not greater than said set point
Meets the calibrated burn-up rate index set point FIGRA
Then judge the monomer burning testThe data acquisition and calculation system of the testing device meets the requirements.
10. The method for calibrating the combustion growth rate index and the total heat release amount in the monomer combustion test as recited in any one of claims 1 to 7, wherein determining whether the data acquisition and calculation system of the monomer combustion test apparatus meets the calibration requirements based on the comparison result between the total heat release amount and the calculated value of the total heat release amount comprises:
if the deviation between the actually measured total heat release value and the calculated total heat release value is in the range of 0-20%, the data acquisition and calculation system of the monomer combustion test device meets the requirements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210818686.XA CN115166133A (en) | 2022-07-13 | 2022-07-13 | Method for calibrating combustion growth rate index and total heat release amount of monomer combustion test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210818686.XA CN115166133A (en) | 2022-07-13 | 2022-07-13 | Method for calibrating combustion growth rate index and total heat release amount of monomer combustion test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115166133A true CN115166133A (en) | 2022-10-11 |
Family
ID=83492891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210818686.XA Pending CN115166133A (en) | 2022-07-13 | 2022-07-13 | Method for calibrating combustion growth rate index and total heat release amount of monomer combustion test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115166133A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116429963B (en) * | 2023-03-07 | 2024-01-23 | 浙江中检海德标准技术有限公司 | High-precision building material monomer combustion test system and method |
-
2022
- 2022-07-13 CN CN202210818686.XA patent/CN115166133A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116429963B (en) * | 2023-03-07 | 2024-01-23 | 浙江中检海德标准技术有限公司 | High-precision building material monomer combustion test system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107209164B (en) | Method for calculating methane value and apparatus for measuring methane value | |
| KR20060085094A (en) | System for testing and estimating fire property by burning of a test materials | |
| CN115166133A (en) | Method for calibrating combustion growth rate index and total heat release amount of monomer combustion test | |
| CA2072122A1 (en) | Microbridge-based combustion control | |
| CN208443807U (en) | A kind of fireproof coating fire resistance detector | |
| CN104165868B (en) | Solid propellant smoke optical transmittance measuring method | |
| CN101393119B (en) | Method for detecting coal clinkering property by testing chromatic aberration value of coal ash | |
| CN103575760B (en) | A kind of measurement mechanism of combustion heat of cigarette and measuring method | |
| CN111255723B (en) | System and method for testing explosion-proof performance of explosion-proof fan | |
| CN108647444A (en) | A method of for evaluating battery burning resistance tester measurement result uncertainty | |
| CN110307651A (en) | The control method and control system of gas heater | |
| CN103954623B (en) | Non-contact solid burning rate testing method | |
| CN100595527C (en) | Household fuel gas gage on-site verification method and apparatus | |
| CN209387568U (en) | It is a kind of with cigarette is close and the flame retardant cable horizontal firing test device of temperature-monitoring function | |
| CN104865289A (en) | Flooring material heat radiation tester | |
| CN113533621A (en) | Vehicle-mounted hydrogen storage cylinder burning test system | |
| CN207248805U (en) | The grading plant of dust combustion danger | |
| CN109611694A (en) | A kind of gas leak detection apparatus detects the control method of tested pipeline gas leakage | |
| Kamimoto et al. | A study on soot formation in premixed constant-volume propane combustion | |
| CN106093298A (en) | A kind of Propellant combustion gas composition test method | |
| CN208125655U (en) | A kind of open fire dust cloud that ignites fires experimental determination device | |
| CN114217007B (en) | Outer flame ignition platform based on cone calorimeter | |
| RU2753261C1 (en) | Method for determining fire resistance of protective coatings | |
| CN204694658U (en) | A kind of pavement heat radiation tester | |
| CN204594879U (en) | A kind of result of combustion of tobacco pyrolysis smog burst size measurement mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |