CN111398347A - Device and method for measuring temperature rise of carbonization reaction - Google Patents
Device and method for measuring temperature rise of carbonization reaction Download PDFInfo
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- CN111398347A CN111398347A CN202010134152.6A CN202010134152A CN111398347A CN 111398347 A CN111398347 A CN 111398347A CN 202010134152 A CN202010134152 A CN 202010134152A CN 111398347 A CN111398347 A CN 111398347A
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- 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
- G01N25/48—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 on solution, sorption, or a chemical reaction not involving combustion or catalytic oxidation
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- 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
- G01N25/48—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 on solution, sorption, or a chemical reaction not involving combustion or catalytic oxidation
- G01N25/4806—Details not adapted to a particular type of sample
- G01N25/4813—Details not adapted to a particular type of sample concerning the measuring means
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- 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
- G01N25/48—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 on solution, sorption, or a chemical reaction not involving combustion or catalytic oxidation
- G01N25/4806—Details not adapted to a particular type of sample
- G01N25/4813—Details not adapted to a particular type of sample concerning the measuring means
- G01N25/482—Details not adapted to a particular type of sample concerning the measuring means concerning the temperature responsive elements
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- 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
- G01N25/48—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 on solution, sorption, or a chemical reaction not involving combustion or catalytic oxidation
- G01N25/4806—Details not adapted to a particular type of sample
- G01N25/484—Heat insulation
Abstract
The invention discloses a device and a method for measuring temperature rise of carbonization reaction, wherein the device comprises a carbonization box, a thermostatic water bath, a gas storage tank and an upper computer, the carbonization box is arranged in the thermostatic water bath, an insulation box is arranged in the carbonization box, a sample test board is arranged in the insulation box and used for placing a sample, a temperature sensor is arranged on the sample and connected with the upper computer through a wire, a gas inlet communicated with the interior of the insulation box is arranged on the side wall of the box body, the gas storage tank is connected with the carbonization box through a gas inlet pipe, the gas inlet pipe penetrates through the gas inlet and is locally positioned in the insulation box, a wire outlet and a gas outlet communicated with the insulation box are arranged on an upper cover, and the wire penetrates through the wire outlet. The method can effectively measure the temperature change in the carbonization reaction process so as to reflect the carbonization reaction activity of the carbonized cementing material.
Description
Technical Field
The invention relates to the technical field of detection of carbonization activity of materials, in particular to a device and a method for measuring temperature rise of carbonization reaction.
Background
With the increasing global warming, the large amount of carbon dioxide emissions has attracted a great deal of attention on a global scale. The building material industry as a carbon emission major household is developing towards the direction of energy conservation and emission reduction. The research shows that most calcium silicate minerals in the cement have high carbonization reaction, can quickly react with carbon dioxide in the presence of water, and the product can obtain high strength in a short time.
The final mechanical property of the carbonized and hardened cementing material product is influenced by the carbonization activity of the material, the higher the carbonization activity is, the more violent the reaction with carbon dioxide is, and the carbonization reaction is a violent exothermic reaction, so the measurement of the reaction heat is an important method for representing the carbonization activity of the carbonized cementing material. At present, the existing calorimetric devices on the market mainly comprise a reaction calorimeter, an acceleration calorimeter and a differential scanning calorimeter. However, because of the particularity of the carbonization reaction, i.e., the continuous introduction of carbon dioxide gas is required to continue the carbonization reaction, these apparatuses cannot satisfy the reaction conditions for providing a sufficient carbon dioxide atmosphere, and particularly, the accuracy of the regulation is poor due to the intense early heat release and the slow late heat release during the carbonization reaction.
Thus, the prior art has yet to be improved and enhanced.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a device and a method for measuring the temperature rise of the carbonization reaction, which can effectively test the carbonization reaction activity of materials.
In order to achieve the purpose, the invention adopts the following technical scheme:
on one hand, the invention discloses a measuring device for temperature rise of carbonization reaction, which comprises a carbonization tank, a constant temperature water bath, an air storage tank and an upper computer, wherein constant temperature water is stored in the constant temperature water bath, the carbonization tank is arranged in the constant temperature water bath, the carbonization tank comprises a tank body and an upper cover detachably connected with the tank body, the tank body and the upper cover are enclosed to form an accommodating cavity, an insulation box is arranged in the accommodating cavity, a sample test board is arranged in the insulation box and used for placing a sample, a temperature sensor is arranged on the sample and connected with the upper computer through a wire, an air inlet communicated with the interior of the insulation box is arranged on the side wall of the tank body, the air storage tank is connected with the carbonization tank through an air inlet pipe, the air inlet pipe penetrates through the air inlet and is locally positioned in the insulation box, the upper cover is provided with a wire outlet hole and an air outlet which are communicated with the heat insulation box, and the wire penetrates through the wire outlet hole.
Preferably, in the device for measuring the temperature rise of the carbonization reaction, a plurality of gas diffusion holes are formed in the side wall of the portion, located in the heat insulation box, of the gas inlet pipe.
Preferably, in the device for measuring the temperature rise of the carbonization reaction, the air pressure bearing range of the carbonization chamber is 1Bar-8 Bar.
Preferably, in the device for measuring the temperature rise of the carbonization reaction, the heat insulation box is made of an insulating material.
On the other hand, the invention also correspondingly discloses a method for measuring the temperature rise of the carbonization reaction, which comprises the following steps:
step (1), building a device for measuring the temperature rise of the carbonization reaction;
respectively placing a temperature sensor at the surface center position of a reference sample and the surface center position of a sample to be detected, placing the sample to be detected and the reference sample on the sample test board, and keeping the humidity of the heat insulation box above a preset humidity;
connecting the temperature sensors of the sample to be detected and the reference sample with the upper computer, and presetting the interval time of data acquisition;
opening the gas storage tank, leading the gas storage tank to introduce carbon dioxide gas into the heat insulation box for a preset time so as to enable the gas pressure in the heat insulation box to rise to a preset gas pressure, recording the time when the gas pressure rises to the preset gas pressure, and recording the time as a first time;
and (5) acquiring test temperature data from the first moment by an upper computer, subtracting the temperature data of the reference sample to obtain the temperature data of the sample to be tested, and drawing an actual temperature rise curve of the sample to be tested according to the temperature data of the sample to be tested.
Preferably, in the method for measuring the temperature rise of the carbonization reaction, the sample to be measured is a material capable of performing a carbonization reaction with carbon dioxide.
Preferably, in the method for measuring the temperature rise of the carbonization reaction, in the step (2), the temperature sensor is a T-type thermocouple, the temperature acquisition range of the temperature sensor is-250 ℃ to 350 ℃, and the measurement accuracy of the temperature sensor is ± 1.0 ℃.
Preferably, in the method for measuring the temperature rise of the carbonization reaction, the reference sample is a product which is prepared from inert silicon dioxide powder and has the specification consistent with that of the sample to be measured.
Compared with the prior art, the device and the method for measuring the temperature rise of the carbonization reaction can effectively measure the temperature change in the carbonization reaction process so as to react the carbonization reaction activity of the carbonized cementing material, thereby providing powerful technical guidance for actual production; and the operation is easy and the cost is low.
Drawings
FIG. 1 is a schematic structural diagram of a preferred embodiment of a device for measuring the temperature rise of carbonization reaction according to the present invention;
FIG. 2 is a flow chart of a method for measuring temperature rise of carbonization reaction according to a preferred embodiment of the present invention.
Detailed Description
The invention provides a device and a method for measuring temperature rise of carbonization reaction, which are further described in detail below by referring to the attached drawings and embodiments in order to make the purpose, technical scheme and effect of the invention clearer and clearer. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, the device for measuring temperature rise of carbonization reaction provided by the embodiment of the present invention includes a carbonization tank 1, a thermostatic water bath 2, a gas storage tank 3 and an upper computer 4, wherein thermostatic water is stored in the thermostatic water bath 2, the carbonization tank 1 is disposed in the thermostatic water bath 2, the carbonization tank 1 includes a tank body 11 and an upper cover 12 detachably connected to the tank body 11, the tank body 11 and the upper cover 12 enclose to form a containing cavity, a heat preservation tank 13 is disposed in the containing cavity, a sample test bench 14 is disposed in the heat preservation tank 13, the sample test bench 14 is used for placing a sample, a temperature sensor is disposed on the sample, the temperature sensor is connected to the upper computer 4 through a wire 5, a gas inlet 111 communicated with the interior of the heat preservation tank 13 is disposed on a side wall of the tank body 11, the gas storage tank 3 is connected to the carbonization tank 1 through a gas inlet pipe 6, the air inlet pipe 6 penetrates through the air inlet 111 and is partially positioned in the heat preservation box 13, the upper cover 12 is provided with an outlet hole 121 and an air outlet 122 which are communicated with the heat preservation box 13, and the lead 5 penetrates through the outlet hole 121.
Specifically, the carbonization chamber 1 provides an environment for the carbonization reaction of the sample, and avoids the influence of external factors; the constant-temperature water bath 2 is used for providing a constant-temperature environment for the carbonization box 1 so as to avoid the influence of external temperature change on the temperature in the carbonization box 1; the gas storage tank 3 is used for storing carbon dioxide gas and realizing the carbonization reaction of the sample by introducing the carbon dioxide gas into the carbonization tank 1, and the heat insulation box 13 is used for heat insulation and can effectively prevent the diffusion of heat so as to ensure the accuracy of data acquisition; the air outlet 122 is used for discharging the air originally existing in the heat preservation box 13 when the carbon dioxide gas is introduced; the upper computer 4 is integrated with a data collector and data processing software, and can collect data collected by the temperature sensor and process the data to obtain a temperature rise curve, and the upper computer 4 can be directly a computer during specific implementation.
When the device is used, the device is set up, a sample is placed on the sample test bench 14, the gas storage tank 3 is opened, carbon dioxide gas is introduced into the heat insulation box 13, air in the heat insulation box 13 is exhausted, the carbon dioxide gas starts to react with the sample, the temperature sensor collects temperature data during reaction and transmits the temperature data to the upper computer 4, the upper computer 4 processes the temperature data to obtain a temperature rise curve, and then temperature change in the carbonization reaction process can be effectively measured, so that the carbonization reaction activity of the carbonized cementing material is reflected, and powerful technical guidance is provided for actual production; and the operation is easy and the cost is low.
In a preferred embodiment, a plurality of gas diffusion holes (not shown) are formed in a side wall of a portion of the gas inlet pipe 6 located in the heat insulation box 13, and carbon dioxide gas introduced through the gas inlet pipe 6 enters the heat insulation box 13 through the gas diffusion holes, so that a carbonization reaction is achieved.
In a preferred embodiment, the gas pressure bearing range of the carbonization box 1 is 1Bar-8Bar, so that the carbonization box 1 can be ensured not to be damaged by overpressure.
In a preferred embodiment, the material of the thermal insulation box 13 is an insulating material, such as porous ceramic, foam, etc., so as to ensure that the diffusion of heat can be effectively blocked, thereby ensuring the accuracy of data acquisition.
Based on the above device for measuring the temperature rise of the carbonization reaction, the present invention further provides a method for measuring the temperature rise of the carbonization reaction, referring to fig. 2, wherein the method comprises the following steps:
s100, building a device for measuring the temperature rise of the carbonization reaction in the embodiment;
s200, respectively placing a temperature sensor at the surface center position of a reference sample and the surface center position of a sample to be detected, placing the sample to be detected and the reference sample on a sample test bench, and keeping the humidity of the heat preservation box above a preset humidity;
s300, connecting the temperature sensors of the sample to be detected and the reference sample with the upper computer, and presetting the interval time of data acquisition;
s400, opening the gas storage tank, leading the gas storage tank to introduce carbon dioxide gas into the heat insulation box for a preset time, so that the gas pressure in the heat insulation box is increased to a preset gas pressure, recording the time when the gas pressure is increased to the preset gas pressure, and recording the time as a first time;
s500, obtaining test temperature data from the first moment by an upper computer, subtracting the temperature data of the reference sample to obtain the temperature data of the sample to be tested, and drawing an actual temperature rise curve of the sample to be tested according to the temperature data of the sample to be tested.
Specifically, a reference sample and a sample to be tested are placed on a sample test board, the temperature rise data of the sample to be tested can be tested through the collected data of the two samples, and then the actual temperature rise curve of the sample to be tested can be obtained, wherein a small hole with the diameter of 2mm and the depth of 1cm is drilled in the center of the upper surfaces of the sample to be tested and the reference sample, then a temperature sensor is embedded into the hole, the hole opening is subjected to sealing treatment, so that the temperature sensor is placed, and the preset humidity is at least 90%; the specific test method is described in detail in the device for measuring the temperature rise of the carbonization reaction, and is not described in detail herein.
In a preferred embodiment, the sample to be tested is a material capable of performing a carbonization reaction with carbon dioxide, such as calcium silicate, calcium hydroxide, calcium oxide, steel slag, and the like, so as to ensure the carbonization reaction.
In a preferred embodiment, in the step (2), the temperature sensor is a T-type thermocouple, the temperature acquisition range of the temperature sensor is-250 ℃ to 350 ℃, and the measurement precision of the temperature sensor is ± 1.0 ℃, so that the temperature data acquisition process can be normally performed, and the accuracy is high.
Furthermore, the reference sample is a product which is prepared from inert silicon dioxide powder and has the same specification with the sample to be detected, and the particle size distribution of the reference sample refers to the sample to be detected so as to achieve the purpose of reference.
For a better understanding of the invention, the process of the invention is illustrated below by means of a number of examples:
in a first embodiment of the method for measuring the increase in the carbonation reaction temperature, the method comprises:
(1) building a measuring device for the temperature rise of the carbonization reaction;
(2) at gamma-C2S and drilling a small hole with the diameter of 2mm and the depth of 1cm in the center of the upper surface of the reference sample, embedding a thermocouple into the hole, and sealing the hole;
(3) putting the sample to be measured and the reference sample with the thermocouple in the thermal insulation box, and ensuring that the humidity in the thermal insulation box is more than 90%;
(4) setting interval points for acquiring signals by operating an upper computer, simultaneously determining whether thermocouples in a reference sample and a sample to be detected work normally or not, and starting to acquire information;
(5) rapidly introducing carbon dioxide gas from the bottom of the carbonization box inwards, exhausting air in the heat preservation box within 5s, sealing, raising the air pressure in the heat preservation box to 0.2MPa, and recording the time when the air pressure is 0.2 MPa;
(6) and after the data acquisition (data acquisition time) is finished, storing the data by taking the moment when the air pressure is 0.2MPa as a measurement starting point and deducting the temperature measured by the reference sample to obtain the actual temperature rise curve of the sample to be measured.
In a second embodiment of the method for measuring the increase in the carbonation reaction temperature, the method comprises:
(1) building a measuring device for the temperature rise of the carbonization reaction;
(2) at C3S and drilling a small hole with the diameter of 2mm and the depth of 1cm in the center of the upper surface of the reference sample, embedding a thermocouple into the hole, and sealing the hole;
(3) putting the sample to be measured and the reference sample with the thermocouple in place into a heat preservation box in a carbonization box, and ensuring that the humidity in the heat preservation box is more than 90%;
(4) setting interval points for acquiring signals by operating an upper computer, simultaneously determining whether thermocouples in a reference sample and a sample to be detected work normally or not, and starting to acquire information;
(5) rapidly introducing carbon dioxide gas from the bottom of the carbonization box inwards, exhausting air in the heat preservation box within 5s, sealing, raising the air pressure in the heat preservation box to 0.2MPa, and recording the time when the air pressure is 0.2 MPa;
(6) and after the data acquisition (data acquisition time) is finished, storing the data by taking the moment when the air pressure is 0.2MPa as a measurement starting point and deducting the temperature measured by the reference sample to obtain the actual temperature rise curve of the sample to be measured.
In a third embodiment of the method for measuring the increase in the carbonization reaction temperature, the method comprises:
(1) building a measuring device for the temperature rise of the carbonization reaction;
(2) drilling a small hole with the diameter of 2mm and the depth of 1cm in the center of the upper surfaces of the CS and the reference sample, embedding a thermocouple into the hole, and sealing the hole;
(3) putting the sample to be measured and the reference sample with the thermocouple in place into a heat preservation box in a carbonization box, and ensuring that the humidity in the heat preservation box is more than 90%;
(4) setting interval points for acquiring signals by operating an upper computer, simultaneously determining whether thermocouples in a reference sample and a sample to be detected work normally or not, and starting to acquire information;
(5) rapidly introducing carbon dioxide gas from the bottom of the carbonization box inwards, exhausting air in the heat preservation box within 5s, sealing, increasing the air pressure in the heat preservation box to 0.2MPa, and recording the time when the air pressure is increased to 0.2 MPa;
(6) and after the data acquisition (data acquisition time) is finished, saving the data by taking the moment when the air pressure rises to 0.2MPa as a measurement starting point and deducting the temperature measured by the reference sample to obtain the actual temperature rise curve of the sample to be measured.
In a fourth embodiment of the method for measuring a temperature rise of carbonization reaction, the method for measuring a temperature rise of carbonization reaction includes:
(1) building a measuring device for the temperature rise of the carbonization reaction;
(2) drilling a small hole with the diameter of 2mm and the depth of 1cm in the center positions of the β -C2S and the upper surface of the reference sample, embedding a thermocouple into the hole, and sealing the hole;
(3) putting the sample to be measured and the reference sample with the thermocouple in place into a heat preservation box in a carbonization box, and ensuring that the humidity in the heat preservation box is more than 90%;
(4) setting interval points for acquiring signals by operating an upper computer, simultaneously determining whether thermocouples in a reference sample and a sample to be detected work normally or not, and starting to acquire information;
(5) rapidly introducing carbon dioxide gas from the bottom of the carbonization box inwards, exhausting air in the heat preservation box within 5s, sealing, increasing the air pressure in the heat preservation box to 0.2MPa, and recording the time when the air pressure is increased to 0.2 MPa;
(6) and after the data acquisition (data acquisition time) is finished, saving the data by taking the moment when the air pressure rises to 0.2MPa as a measurement starting point and deducting the temperature measured by the reference sample to obtain the actual temperature rise curve of the sample to be measured.
In a fifth embodiment of the method for measuring a temperature rise of a carbonization reaction, the method for measuring a temperature rise of a carbonization reaction includes:
(1) building a measuring device for the temperature rise of the carbonization reaction;
(2) drilling a small hole with the diameter of 2mm and the depth of 1cm in the center positions of the upper surfaces of the C3S2 and the reference sample, embedding a thermocouple into the hole, and sealing the hole;
(3) putting the sample to be measured and the reference sample with the thermocouple in place into a heat preservation box in a carbonization box, and ensuring that the humidity in the heat preservation box is more than 90%;
(3) setting interval points for acquiring signals by operating an upper computer, simultaneously determining whether thermocouples in a reference sample and a sample to be detected work normally or not, and starting to acquire information;
(4) rapidly introducing carbon dioxide gas from the bottom of the carbonization box inwards, exhausting air in the heat insulation box within 5s, sealing, raising the air pressure in the heat insulation box to 0.2MPa, and recording the time when the air pressure is raised to 0.2 MPa;
(5) and after the data acquisition (data acquisition time) is finished, saving the data by taking the moment when the air pressure rises to 0.2MPa as a measurement starting point and deducting the temperature measured by the reference sample to obtain the actual temperature rise curve of the sample to be measured.
In conclusion, the device and the method for measuring the temperature rise of the carbonization reaction can effectively measure the temperature change in the carbonization reaction process so as to reflect the carbonization reaction activity of the carbonized cementing material, thereby providing powerful technical guidance for the actual production; and the operation is easy and the cost is low.
It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the scope of the appended claims.
Claims (8)
1. The device for measuring the temperature rise of the carbonization reaction is characterized by comprising a carbonization box, a thermostatic water bath, an air storage tank and an upper computer, wherein thermostatic water is stored in the thermostatic water bath, the carbonization box is arranged in the thermostatic water bath and comprises a box body and an upper cover detachably connected with the box body, the box body and the upper cover are enclosed to form a containing cavity, an insulation box is arranged in the containing cavity, a sample test board is arranged in the insulation box and used for placing a sample, a temperature sensor is arranged on the sample and connected with the upper computer through a wire, an air inlet communicated with the inside of the insulation box is arranged on the side wall of the box body, the air storage tank is connected with the carbonization box through an air inlet pipe, the air inlet pipe penetrates through the air inlet and is locally positioned in the insulation box, the upper cover is provided with a wire outlet hole and an air outlet which are communicated with the heat insulation box, and the wire penetrates through the wire outlet hole.
2. The apparatus for measuring temperature rise in carbonization reaction according to claim 1, wherein a plurality of gas diffusion holes are provided in a side wall of a portion of the gas inlet pipe located in the heat insulating box.
3. The apparatus for measuring the temperature rise of carbonization reaction according to claim 1, wherein the gas pressure bearing range of the carbonization chamber is 1Bar-8 Bar.
4. The apparatus for measuring temperature rise in carbonization reaction according to claim 1, wherein the heat-insulating box is made of an insulating material.
5. A method for measuring the temperature rise of carbonization reaction is characterized by comprising the following steps:
step (1), building a device for measuring the temperature rise of the carbonization reaction according to any one of claims 1 to 4;
respectively placing a temperature sensor at the surface center position of a reference sample and the surface center position of a sample to be detected, placing the sample to be detected and the reference sample on the sample test board, and keeping the humidity of the heat insulation box above a preset humidity;
connecting the temperature sensors of the sample to be detected and the reference sample with the upper computer, and presetting the interval time of data acquisition;
opening the gas storage tank, leading the gas storage tank to introduce carbon dioxide gas into the heat insulation box for a preset time so as to enable the gas pressure in the heat insulation box to rise to a preset gas pressure, recording the time when the gas pressure rises to the preset gas pressure, and recording the time as a first time;
and (5) acquiring test temperature data from the first moment by an upper computer, subtracting the temperature data of the reference sample to obtain the temperature data of the sample to be tested, and drawing an actual temperature rise curve of the sample to be tested according to the temperature data of the sample to be tested.
6. The method for measuring temperature rise in carbonization reaction according to claim 5, wherein the sample to be measured is a material capable of undergoing a carbonization reaction with carbon dioxide.
7. The method for measuring the temperature rise in the carbonization reaction according to claim 5, wherein in the step (2), the temperature sensor is a T-type thermocouple, the temperature acquisition range of the temperature sensor is-250 ℃ to 350 ℃, and the measurement accuracy of the temperature sensor is ± 1.0 ℃.
8. The method for measuring temperature rise in carbonization reaction according to claim 5, wherein the reference sample is an article prepared from inert silica powder and conforming to the specification of the sample to be measured.
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