Novel lithium battery temperature rise test system

Abstract

The invention relates to the technical field of new energy, and discloses a novel lithium battery temperature rise test system. The system comprises an explosion-proof temperature rise test chamber, a flue gas filtration treatment device, a lithium battery test bench, a heating plate, a thermocouple tree, a weighing sensor, a heat flow sensor, an explosion-proof water cooling monitoring camera, an explosion-proof high-energy igniter, a temperature acquisition recorder, a weighing sensor converter, a heat flow sensor converter, an industrial water cooler, a heating plate control system and a flue gas analyzer. The system is composed of a serial port acquisition module, a computer, data acquisition processing software and a monitoring room. The novel lithium battery temperature rise test system can perform multi-parameter real-time monitoring and measurement on the whole thermal runaway process of lithium batteries of various models and specifications, analyzes videos and data before and after thermal runaway of the lithium batteries, provides original data for application scenarios of the lithium batteries, provides an effective coping strategy, and improves the reliability of the lithium battery temperature rise test. And the new energy, namely the lithium battery, is safely and efficiently used.

Description

Technical Field

[0001] This invention belongs to the field of new energy technology, specifically a novel lithium battery temperature rise test system. Background Technology

[0002] With the widespread application of new energy sources in electric vehicles, energy storage cabinets, electric ships, and other fields, ternary lithium batteries and lithium iron phosphate batteries are currently the most commonly used, available in various forms such as soft packs, hard packs, single cells, battery packs, and battery modules. The risks associated with lithium-ion battery applications have not been verified. This invention presents a novel lithium battery temperature rise testing system that monitors the entire process of abnormal temperature rise, thermal runaway, thermal runaway propagation, and fire in lithium battery applications. The system scientifically analyzes the test data to identify the characteristics of abnormal lithium battery operating conditions, providing raw data for lithium battery safety management systems, enabling earlier implementation of safety control measures, and reducing the risks associated with lithium battery applications. Summary of the Invention

[0003] To achieve the above objectives, the present invention provides the following technical solution: a novel lithium battery temperature rise test system, comprising an explosion-proof temperature rise test chamber, a flue gas filtration and treatment device, a lithium battery test bench, a heating plate, a thermocouple tree, a weighing sensor, a heat flux sensor, an explosion-proof water-cooled monitoring camera, an explosion-proof high-energy igniter, a temperature acquisition and recorder, a weighing sensor converter, a heat flux sensor converter, an industrial water chiller, a heating plate control system, a flue gas analyzer, a serial port acquisition module, a computer, data acquisition and processing software, and a monitoring room.

[0004] Compared with the prior art, the beneficial effects of the present invention are: (1) An explosion-proof temperature rise test chamber is used, which is built in accordance with ISO9705 standards and complies with current international standards; (2) By using multi-parameter measurement sensors such as thermocouples, weighing sensors, heat flow sensors, and flue gas analyzers, multiple parameters can be monitored in real time during the test, which is beneficial for effective data analysis of the test process; (3) It has a lithium battery test bench, which can adapt to the currently widely used soft pack, hard pack, single cell, battery pack, battery module, as well as ternary lithium battery and lithium iron phosphate battery. (4) A flue gas filtration treatment device is adopted. The flue gas filtration treatment device is connected through the flue gas hood pipe, which can filter and treat the flue gas generated during the test, thereby reducing pollution emissions. Attached Figure Description

[0005] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0006] In the attached diagram: Figure 1 Layout diagram of the lithium battery temperature rise testing system of this invention; Figure 2 Sensor arrangement diagram inside the test chamber of this invention; Figure 3 Diagram of thermocouple tree arrangement inside the experimental chamber of the invention; Figure 4 The layout diagram of the monitoring room instruments and equipment of this invention; In the diagram: 1. Explosion-proof temperature rise test chamber; 2. Smoke hood; 3. Observation window; 4. Explosion-proof door; 6. Smoke filtration and treatment device; 7. Monitoring room; 8. Heat flow sensor; 9. Explosion-proof high-energy igniter; 10. Explosion-proof water-cooled monitoring camera; 11. Fixture; 12. Lithium battery test bench; 13. Weighing sensor; 15. Thermocouple tree; 16. Thermocouple. Detailed Implementation

[0007] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0008] Implementation examples, by Figures 1 to 4 The present invention comprises an explosion-proof temperature rise test chamber 1, a flue gas filtration and treatment device 6, a lithium battery test bench 12, a heating plate, a thermocouple tree 15, a weighing sensor 13, a heat flow sensor 8, an explosion-proof water-cooled monitoring camera 10, an explosion-proof high-energy igniter 9, a temperature acquisition recorder, a weighing sensor converter, a heat flow sensor converter, an industrial water chiller, a heating plate control system, a flue gas analyzer 14, a serial port acquisition module, a computer, data acquisition and processing software, and a monitoring room 7.

[0009] The lithium battery test bench 12, thermocouple tree 15, load cell 13, heat flow sensor 8, explosion-proof water-cooled monitoring camera 10, heating plate, and explosion-proof high-energy igniter 9 are arranged in the explosion-proof temperature rise test chamber 1. The temperature acquisition recorder, load cell converter, heat flow sensor converter, industrial water chiller, heating plate control system, serial port acquisition module, and computer are arranged in the monitoring room 7. After the test lithium battery is fixed to the heating plate by the clamp, the heating plate is connected to the heating plate control system and placed on the lithium battery test bench 12. The load cell 13 is placed on the lithium battery test bench 1. 2. The load cell is connected to the weighing sensor converter, the industrial water chiller is connected to the explosion-proof water-cooled monitoring camera 10, and each thermocouple tree 15 is arranged with thermocouples 16 at intervals. The thermocouples 16 are connected to the temperature acquisition recorder. The heat flow sensor 8 is connected to the heat flow sensor converter, the temperature acquisition recorder, the load cell converter, and the flue gas analyzer 14 is connected to the serial port acquisition module. The serial port acquisition module is connected to the computer. The exhaust window of the thermal explosion-proof temperature rise test chamber 1 is connected to the flue gas filtration and treatment device 6 through the smoke collection hood 2. The device is installed on the computer and runs data acquisition and processing software to record and display data in real time.

[0010] The explosion-proof temperature rise test chamber 1 is constructed in accordance with ISO9705 standards and conforms to current international standards. It is made of high-standard concrete and has external dimensions of 2400mm×3600mm×2400mm. It has explosion-proof function and is equipped with explosion-proof door 4 and smoke exhaust window. The inner walls of the explosion-proof temperature rise test chamber 1 are covered with heat insulation board, and a 10mm thick heat insulation cotton is laid on the heat insulation board to prevent the high temperature generated during the temperature rise test from damaging the explosion-proof temperature rise test chamber 1.

[0011] The explosion-proof temperature rise test chamber 1 is equipped with an observation window 3, and a smoke collection hood 2 is installed at the observation window 3. The top of the smoke collection hood 2 is connected to the smoke filtration and treatment device 6 through a pipe, which can filter and treat the smoke generated during the test and reduce pollution emissions.

[0012] The top of the lithium battery test bench 12 is equipped with a clamp 11 for fixing the lithium battery. After the lithium battery is fixed to the heating plate, it is placed on the lithium battery test bench 12, which can facilitate the movement of the lithium battery in the explosion-proof temperature rise test chamber 1. The heating plate is a YM-600 series AC220V stainless steel mica heating plate, which heats up quickly, is resistant to high temperature, and has good insulation. Its shape and size are consistent with the test lithium battery. The clamp 11 is used to fit tightly with the lithium battery, so that the heat of the heating plate can be directly applied to the surface of the lithium battery, reducing heat loss. The heating power of the heating plate is set to 600W and 900W according to the capacity and size of the lithium battery.

[0013] Thermocouple trees 15 are evenly arranged in the explosion-proof temperature rise test chamber 1 at intervals of 600mm × 900mm, with a total of 20 thermocouple trees 15. Each thermocouple tree 15 has 6 high-temperature armored WRNK-191K thermocouples 16 arranged from bottom to top at intervals of 600mm, 600mm, 300mm, 300mm, and 300mm. The probe diameter is 1.5mm. A total of 120 thermocouples 16 are arranged in the test chamber, forming a thermocouple matrix 16, which is used to measure the change law of the ambient temperature field in the explosion-proof temperature rise test chamber 1. After the thermocouples 16 are arranged, the thermocouple trees 15 are wrapped with 50mm thick heat insulation cotton to prevent the high temperature generated during the test from damaging the thermocouples 16.

[0014] The weighing sensor 13 is an HZC-H1-200kg planar load cell made of stainless steel, which has high temperature resistance. Four weighing sensors 13 are fixed on the four support legs of the lithium battery test bench 12 to measure the weight change of the lithium battery in real time during the temperature rise test.

[0015] The heat flux sensor 8 is a GD-B3-500K type heat flux test sensor with a mature flange mounting method. It is equipped with a water-cooled circulating pump and is suitable for high-temperature environments of 2000℃. It is used to measure the heat flux density of lithium battery temperature rise test in explosion-proof temperature rise test chamber 1.

[0016] Two explosion-proof water-cooled monitoring cameras 10 are installed inside the explosion-proof temperature rise test chamber 1, located directly in front of and to the side of the lithium battery test bench 12, respectively, to record the changes in the lithium battery during the temperature rise test and the test process.

[0017] An SCDH-20B type explosion-proof high-energy igniter 9 is installed inside the explosion-proof temperature rise test chamber 1. When the lithium battery thermal runaway safety valve bursts and flammable gas is released, the explosion-proof high-energy igniter 9 is powered on to generate a high-energy electric spark, which ignites the flammable gas.

[0018] The temperature acquisition recorder is connected to thermocouples 16 in the explosion-proof temperature rise test chamber 1. It converts the resistance change of thermocouples 16 into temperature values, collects and records the temperature in real time, and saves it. Each temperature acquisition recorder can connect to 48 thermocouples 16, and a total of three temperature acquisition recorders are configured.

[0019] The load cell converter adopts the CYBSQ-12-V2 four-channel summation load cell converter, which connects the signals of the four load cells 13 to the load cell converter and automatically sums the signals of the four load cells 13 to calculate the total weight of the four load cells 13.

[0020] The heat flux sensor converter uses the DaqPRO800 multi-channel heat flux converter, which can measure the heat flux value in the test chamber in real time.

[0021] The industrial water chiller is connected to the cooling pipe of the explosion-proof water-cooled monitoring camera 10 to cool and reduce the temperature of the cooling circulating water in the pipe of the explosion-proof water-cooled monitoring camera 10, so as to prevent the monitoring camera from being damaged by the high temperature generated during the temperature rise test.

[0022] The heating plate control system is equipped with a WD-24KZ 24-channel heating plate control system, which can control 24 heating plates individually and monitor heating power and heating temperature in real time.

[0023] The flue gas analyzer 14 uses an intake tube arranged on the side of the lithium battery to analyze the composition and concentration of the gas emitted by the lithium battery and measure the gas content value.

[0024] The serial port acquisition module uses an 8-channel MOX card UPORT1650-8 serial port acquisition module, which can simultaneously read data from the temperature acquisition recorder, weighing sensor converter, heat flux sensor converter, and flue gas analyzer 14.

[0025] The computer uses a high-performance I9 series processor and runs data acquisition and processing software. It can display the current temperature, weight, heat flux, and flue gas content data on the monitor in real time and draw them into graphs.

[0026] Working principle: The test lithium battery is fixed to the heating plate by the clamp 11 and placed on the lithium battery test bench 12. The four weighing sensors 13 under the lithium battery test bench 12 convert the weight into electrical signals. The weighing sensor converter processes and sums the signals to calculate the total weight on the lithium battery test bench 12. The total weight is then converted into RS-485 interface and sent to the serial port acquisition module. The computer runs the data acquisition and processing software to read the weight data in real time and draw the weight curve on the computer interface. At the same time, the weight data is stored in text format for subsequent test data processing.

[0027] The heating plate control system is connected to the heating plate and can control the heating plate to heat in real time. The heating plate has a built-in temperature sensor. After the set temperature is reached, it is controlled by a PID algorithm to keep the set temperature unchanged. When the safety valve bursts in the event of thermal runaway of the lithium battery, the heating plate control system automatically cuts off the power.

[0028] Thermocouple trees are evenly arranged in the test chamber at intervals of 600mm × 900mm, totaling 20 thermocouple trees 15. Each thermocouple tree 15 has six high-temperature armored WRNK-191K thermocouples 16 arranged from bottom to top at intervals of 600mm, 600mm, 300mm, 300mm, 300mm, with probe diameters of 1.5mm. A total of 120 thermocouples 16 are arranged in the test chamber, forming a thermocouple 16 matrix. This matrix is ​​used to measure the temperature field changes within the explosion-proof temperature rise test chamber 1. The thermocouples 16 are connected to three 48-channel temperature acquisition recorders. The three temperature acquisition recorders convert the resistance values ​​collected by the 120 thermocouples 16 into temperature data, and then convert the temperature data into RS-485 interface data, which is sent to the serial port acquisition module. The computer runs the data acquisition and processing software to read the temperature data in real time and display it in a chart format on the computer interface. At the same time, the weight data is stored in text format for easy processing of subsequent experimental data. The data acquisition software can also display the changes in the temperature field in real time in 2D.

[0029] The heat flux sensor 8 is installed at a height of 1.2m in the front and 1.2m in the side of the lithium battery test bench 12. It is used to measure the heat flux density (kW / m2) of the lithium battery in the explosion-proof temperature rise test chamber 1. Equipped with a water-cooled circulating pump, it can adapt to high-temperature environments. It is matched with a DaqPRO800 multi-channel heat flux converter to convert the heat flux value in the explosion-proof temperature rise test chamber 1 into a digital signal. The digital signal is connected to the serial port acquisition module, and the computer runs data acquisition and processing software to read the heat flux value data in real time and display it in real time as a chart on the computer interface.

[0030] Two explosion-proof water-cooled monitoring cameras 10 are installed inside the explosion-proof temperature rise test chamber 1, located directly in front of and to the side of the lithium battery test bench 12, respectively. The images from the monitoring cameras are displayed on the screen via a computer to record the changes in the lithium battery and the test process during the temperature rise test. An industrial water chiller is configured and connected to the cooling pipes of the explosion-proof water-cooled monitoring cameras 10 to cool the circulating water in the pipes of the explosion-proof water-cooled monitoring cameras 10, preventing the high temperatures generated during the temperature rise test from damaging the cameras.

[0031] The intake pipe of the flue gas analyzer 14 is arranged at a height of 1.2m on the side of the lithium battery to measure the gas content in the explosion-proof temperature rise test chamber 1 before, during and after the lithium battery test, providing important data support for lithium battery protection strategies.

[0032] Test Procedure: The heating plate control system controls the heating plate to heat the lithium battery. After reaching a certain temperature, the lithium battery expands internally. When the internal pressure reaches a critical value, the lithium battery pressure relief valve can be observed to burst open through the monitoring video, spraying out combustible gas. The combustible gas becomes increasingly concentrated, and its color changes from gray to black. The flue gas analyzer 14 monitors the gas concentration data in real time. When the gas concentration reaches the set value, the test personnel manually activate the explosion-proof high-energy igniter 9. The explosion-proof high-energy igniter 9 generates a high-voltage electric spark, igniting the gas sprayed out by the lithium battery. The lithium battery burns violently. Thermocouples 16, heat flow sensors 8, weighing sensors 13, and flue gas analyzers 14 in the explosion-proof temperature rise test chamber 1 monitor the data in real time.

[0033] The computer-run data acquisition and processing software collects and displays relevant data on the screen in real time, allowing for intuitive observation of the experimental process data. The software can also perform calculations on the collected data, plot temperature curves for the high-temperature and low-temperature layers, and display a 2D temperature change image of the experimental chamber. Furthermore, the software saves the collected data as text information, which researchers can further process and analyze to draw scientific conclusions.

[0034] Meanwhile, this lithium battery temperature rise test system can perform real-time monitoring and measurement of multiple parameters throughout the entire thermal runaway process of various models and specifications of lithium batteries. It can analyze the video and data before and after the thermal runaway of lithium batteries, provide raw data for lithium battery application scenarios, propose effective coping strategies, and ensure the safe and efficient use of lithium batteries as a new energy source.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel lithium battery temperature rise test system, comprising an explosion-proof temperature rise test chamber (1), a flue gas filtration and treatment device (6), a lithium battery test bench (12), a heating plate, a thermocouple tree (15), a weighing sensor (13), a heat flow sensor (8), an explosion-proof water-cooled monitoring camera (10), an explosion-proof high-energy igniter (9), a temperature acquisition recorder, a weighing sensor converter, a heat flow sensor converter, an industrial water chiller, a heating plate control system, a flue gas analyzer (14), a serial port acquisition module, a computer, data acquisition and processing software, and a monitoring room (7), characterized in that: The lithium battery test bench (12), thermocouple tree (15), weighing sensor (13), heat flow sensor (8), explosion-proof water-cooled monitoring camera (10), heating plate, and explosion-proof high-energy igniter (9) are arranged in the explosion-proof temperature rise test chamber (1). The temperature acquisition recorder, weighing sensor converter, heat flow sensor converter, industrial water chiller, heating plate control system, serial port acquisition module, and computer are arranged in the monitoring room (7). After the test lithium battery is fixed to the heating plate by the clamp, the heating plate is connected to the heating plate control system and placed on the lithium battery test bench (12). The weighing sensor (13) is placed on the lithium battery test bench. (12) is connected to the weighing sensor converter, the industrial water chiller is connected to the explosion-proof water-cooled monitoring camera (10), each thermocouple tree (15) is arranged with thermocouples (16) at intervals, the thermocouples (16) are connected to the temperature acquisition recorder, the heat flow sensor (8) is connected to the heat flow sensor converter, the temperature acquisition recorder, the weighing sensor converter, the flue gas analyzer (14) is connected to the serial port acquisition module, the serial port acquisition module is connected to the computer, the smoke exhaust window of the thermal explosion-proof temperature rise test chamber (1) is connected to the flue gas filtration and treatment device (6) through the smoke collection hood (2), and the computer runs the data acquisition and processing software to record and display data in real time.

2. The novel lithium battery temperature rise test system according to claim 1, characterized in that: The explosion-proof temperature rise test chamber (1) is constructed with high-standard concrete in accordance with ISO9705 standards. Its external dimensions are 2400mm×3600mm×2400mm. It has explosion-proof function and is equipped with explosion-proof door (4) and smoke exhaust window. The inner walls of the explosion-proof temperature rise test chamber (1) are covered with heat insulation board, and a 10mm thick heat insulation cotton is laid on the heat insulation board to prevent the high temperature generated during the temperature rise test from damaging the explosion-proof temperature rise test chamber (1).

3. The novel lithium battery temperature rise test system according to claim 1, characterized in that: The explosion-proof temperature rise test chamber (1) is equipped with an observation window (3), and a smoke hood (2) is installed at the observation window (3). The top of the smoke hood (2) is connected to the flue gas filtration and treatment device (6) through a pipe, which can filter and treat the flue gas generated during the test and reduce pollution emissions.

4. The novel lithium battery temperature rise test system according to claim 1, characterized in that: The top of the lithium battery test bench (12) is provided with a clamp (11) for fixing the lithium battery. After fixing the lithium battery to the heating plate, it is placed on the lithium battery test bench (12), which can facilitate the movement of the lithium battery in the explosion-proof temperature rise test chamber (1).

5. The novel lithium battery temperature rise test system according to claim 4, characterized in that: The heating plate is a YM-600 series AC220V stainless steel mica heating plate, which heats up quickly, is resistant to high temperature, and has good insulation. Its shape and size are consistent with the shape of the test lithium battery. It is tightly attached to the lithium battery through the clamp (11) so that the heat of the heating plate can be directly applied to the surface of the lithium battery, reducing heat loss. The heating power of the heating plate is set according to the capacity and size of the lithium battery, with two types of heating plates: 600W and 900W.

6. The novel lithium battery temperature rise test system according to claim 1, characterized in that: The thermocouple trees (15) are arranged evenly in the explosion-proof temperature rise test chamber (1) at intervals of 600mm×900mm, with a total of 20 thermocouple trees (15). Each thermocouple tree (15) has 6 high-temperature armored WRNK-191K thermocouples (16) arranged from bottom to top at intervals of 600mm, 600mm, 300mm, 300mm, and 300mm. The probe diameter is 1.5mm. A total of 120 thermocouples (16) are arranged in the test chamber to form a thermocouple (16) matrix, which is used to measure the change law of the ambient temperature field in the explosion-proof temperature rise test chamber (1). After the thermocouples (16) are arranged, the thermocouple trees (15) are wrapped with 50mm thick heat insulation cotton to prevent the high temperature generated during the test from damaging the thermocouples (16).

7. The novel lithium battery temperature rise test system according to claim 1, characterized in that: The weighing sensor (13) is a stainless steel HZC-H1-200kg planar load cell with high temperature resistance. It is equipped with four weighing sensors (13) and fixed on the four support legs of the lithium battery test bench (12) for real-time measurement of the weight change during the lithium battery temperature rise test. The heat flow sensor (8) adopts the mature flange mounting method of GD-B3-500K type heat flow test sensor, equipped with water-cooled circulating pump, suitable for high temperature environment of 2000℃, and is used to measure the heat flow density of lithium battery temperature rise test in explosion-proof temperature rise test chamber (1). Two explosion-proof water-cooled monitoring cameras (10) are arranged inside the explosion-proof temperature rise test chamber (1), which are positioned in front of the lithium battery test bench (12) and to the side, respectively, to record the changes in the lithium battery during the temperature rise test and the test process.

8. The novel lithium battery temperature rise test system according to claim 1, characterized in that: An SCDH-20B type explosion-proof high-energy igniter (9) is arranged in the explosion-proof temperature rise test chamber (1) to ignite the combustible gas when the lithium battery thermal runaway safety valve bursts open and flammable gas is released. The explosion-proof high-energy igniter (9) is powered on to generate a high-energy electric spark to ignite the combustible gas. The temperature acquisition recorder is connected to the thermocouple (16) in the explosion-proof temperature rise test chamber (1), converts the resistance change of the thermocouple (16) into a temperature value, collects and records the temperature in real time and saves it. Each temperature acquisition recorder can connect to 48 thermocouples (16), and a total of three temperature acquisition recorders are configured. The weighing sensor converter adopts the CYBSQ-12-V2 type four-channel summation weighing sensor converter, which connects the signals of the four weighing sensors (13) to the weighing sensor converter, automatically sums the signals of the four weighing sensors (13), and calculates the total weight of the four weighing sensors (13). The heat flux sensor converter uses the DaqPRO800 multi-channel heat flux converter, which can measure the heat flux value in the test chamber in real time.

9. The novel lithium battery temperature rise test system according to claim 1, characterized in that: The industrial water chiller is connected to the cooling pipe of the explosion-proof water-cooled monitoring camera (10) to cool and reduce the temperature of the cooling circulating water in the pipe of the explosion-proof water-cooled monitoring camera (10) to prevent the high temperature generated during the temperature rise test from damaging the monitoring camera. The heating plate control system is equipped with a WD-24KZ 24-channel heating plate control system, which can control 24 heating plates individually and monitor heating power and heating temperature in real time. The flue gas analyzer (14) uses an intake tube arranged on the side of the lithium battery to analyze the composition and concentration of the gas emitted by the lithium battery and measure the gas content value.

10. A novel lithium battery temperature rise testing system according to claim 1, characterized in that: The serial port acquisition module is an 8-channel MOX card UPORT1650-8 serial port acquisition module, which can simultaneously read data from the temperature acquisition recorder, the weighing sensor converter, the heat flow sensor converter, and the flue gas analyzer (14). The computer uses a high-performance I9 series processor and runs data acquisition and processing software. It can display the current temperature, weight, heat flux, and flue gas content data on the monitor in real time and draw them into graphs.

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