Escape gas component analysis system

Abstract

The invention relates to an analysis system for escaped gas components. The analysis system comprises a sampling mechanism, the sampling mechanism comprises a first chamber, a second chamber and a third chamber which are sequentially connected in series, and the first chamber is used for placing a to-be-tested sample; the thermogravimetric mechanism is matched with the first chamber so as to heat the sample to be tested, so that escape gas is generated; the infrared spectrum mechanism is matched with the second chamber, so that infrared light is adopted to irradiate the escape gas; the gas chromatography mechanism is matched with the third chamber, so that a chromatographic column is adopted to process the escape gas; and the control mechanism is respectively in communication connection with the thermogravimetric mechanism, the infrared spectrum mechanism and the gas chromatography mechanism so as to analyze the components of the escape gas. According to the analysis system, the tandem type sampling mechanism is adopted, so that the analysis accuracy and sensitivity can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of detection equipment, in particular to an analysis system for escaping gas components. Background Art

[0002] Evolved Gas Analysis (EGA) is a broad technology involving multiple fields and directions, which can provide information about the gases produced by the sample under test during physical and chemical reactions. The International Confederation for Thermal Analysis (ICTAC) defines evolved gas analysis as "a method in which the temperature of a substance is changed according to an adjusted program, and the type and (or) amount of volatile products released by the substance are measured as a function of temperature". Evolved gas analysis can reveal sample components, study reaction processes, improve material safety and strengthen quality control, and is therefore widely used in materials science, environmental monitoring, energy, pharmaceuticals, food and other fields.

[0003] At present, the analysis of evolved gases is usually used in conjunction with a thermogravimetric analyzer (TGA), which records the mass loss of a sample when it is exposed to a temperature program or a specific temperature in a controlled atmosphere. The gases and volatile products generated during the TGA heating process are transferred to the gas analysis system through specially designed interfaces and transmission lines, and these gases are then introduced into gas analysis instruments for qualitative and quantitative analysis, such as infrared spectrometers (IR), gas chromatographs (GC), mass spectrometers (MS), etc. In the prior art, the evolved gases generated during the TGA heating process are usually transmitted to each gas analysis instrument in parallel, which not only causes the loss of evolved gases, but also easily dilutes the concentration of evolved gases, reducing the accuracy and sensitivity of the analysis.

[0004] Therefore, this field needs a new technical solution to solve the above problems. Summary of the invention

[0005] In order to solve or improve to a certain extent the technical problem of poor accuracy and sensitivity of the analysis of evolved gas in the prior art, the present invention provides an analysis system for the composition of evolved gas. The analysis system comprises: a sampling mechanism, the sampling mechanism comprises a first chamber, a second chamber and a third chamber connected in series in sequence, wherein the first chamber is used to place the sample to be tested; a thermogravimetric mechanism, the thermogravimetric mechanism is matched with the first chamber to heat the sample to be tested to generate evolved gas; an infrared spectroscopy mechanism, the infrared spectroscopy mechanism is matched with the second chamber to irradiate the evolved gas with infrared light; a gas chromatography mechanism, the gas chromatography mechanism is matched with the third chamber to process the evolved gas with a chromatographic column; and a control mechanism, the control mechanism is respectively connected in communication with the thermogravimetric mechanism, the infrared spectroscopy mechanism and the gas chromatography mechanism to analyze the composition of the evolved gas.

[0006] It is understood by those skilled in the art that the analysis system of the gas composition of the present invention includes a sampling mechanism, a thermogravimetric mechanism, an infrared spectroscopy mechanism, a gas chromatography mechanism and a control mechanism. Among them, the sampling mechanism includes a first chamber, a second chamber and a third chamber connected in series in sequence. The first chamber is used to place the sample to be tested. The thermogravimetric mechanism, the infrared spectroscopy mechanism and the gas chromatography mechanism correspond to the first chamber, the second chamber and the third chamber, respectively. The control mechanism forms a communication connection with the thermogravimetric mechanism, the infrared spectroscopy mechanism and the gas chromatography mechanism, respectively. Therefore, the analysis system of the present invention can not only use an integrated gas analysis mechanism (including a thermogravimetric mechanism, an infrared spectroscopy mechanism and a gas chromatography mechanism) to perform a comprehensive and accurate analysis of the gas emitted by the sample to be tested, but also can perform thermogravimetric analysis, infrared spectroscopy analysis and gas chromatography analysis on the gas emitted in sequence through a series sampling mechanism, so as to avoid loss caused by the gas emitted, ensure the concentration of the gas emitted, and thus improve the accuracy and sensitivity of the analysis.

[0007] In the preferred technical solution of the above-mentioned analysis system of the components of the escaped gas, the sampling mechanism also includes a fourth chamber which is arranged in series with the third chamber and is located on a side of the third chamber away from the second chamber; the analysis system includes a mass spectrometer mechanism matched with the fourth chamber so as to process the escaped gas in an ionization manner; and the control mechanism is in communication connection with the mass spectrometer mechanism. Through the above-mentioned arrangement, the analysis means can be further increased and the analysis accuracy can be improved.

[0008] In the preferred technical solution of the above-mentioned system for analyzing the components of the evolved gas, the first chamber, the second chamber, the third chamber and the fourth chamber are connected by pipelines, and an on-off valve communicating with the control mechanism is provided on each of the pipelines. By providing an on-off valve communicating with the control mechanism on the pipeline, the timing of the evolved gas entering each chamber can be accurately controlled to ensure the analysis accuracy.

[0009] In the preferred technical solution of the above-mentioned system for analyzing the composition of the escaping gas, a flow regulating valve is also provided on each of the pipelines to form a communication connection with the control mechanism. The setting of the flow regulating valve can accurately adjust the flow of the escaping gas in each pipeline to meet the test needs.

[0010] In the preferred technical solution of the above-mentioned system for analyzing the composition of the escaping gas, a flow meter communicating with the control mechanism is also provided on each of the pipelines. The flow meter can monitor the flow of the escaping gas in each pipeline in real time and accurately.

[0011] In the preferred technical solution of the above-mentioned system for analyzing the components of the evolved gas, a purifier is provided on the pipeline between the first chamber and the second chamber. The purifier can effectively filter and pre-treat the evolved gas generated by the test sample to prevent impurities from affecting subsequent analysis.

[0012] In the preferred technical solution of the above-mentioned analysis system of the components of the escaped gas, the test parameters of the thermogravimetric mechanism include: a temperature range of 25°C-1200°C, a heating rate of 0-50°C / min, a weight range of 0-200mg, and a carrier gas type of argon, nitrogen, oxygen or air. Through the above-mentioned settings, the thermogravimetric mechanism can have good test performance to meet the needs of thermogravimetric analysis.

[0013] In the preferred technical solution of the above-mentioned analysis system for the components of the escaped gas, the test parameters of the infrared spectroscopy mechanism include: the spectral range is 600cm- 1 -4000cm- 1 , resolution better than 0.4cm- 1 , wave number accuracy is better than 0.01cm- 1 , the transmittance accuracy is better than 0.1% T. Through the above settings, the infrared spectrum mechanism can have good testing performance to meet the needs of infrared spectrum analysis.

[0014] In the preferred technical solution of the above-mentioned analysis system for the components of the escaping gas, the test parameters of the gas chromatography mechanism include: a pressure range of 0-100 psi, a pressure control accuracy of 0.001 psi, and a column oven temperature range of 4°C-450°C above the ambient temperature. Through the above-mentioned settings, the gas chromatography mechanism can have good test performance to meet the needs of gas chromatography analysis.

[0015] In the preferred technical scheme of the above-mentioned analysis system of the escaped gas components, the test parameters of the mass spectrometer include: the mass spectrometer type is quadrupole, the ion source is electron bombardment, and the mass number range is 1amu-300amu. Through the above-mentioned settings, the mass spectrometer can have good test performance to meet the needs of mass spectrometry analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0017] Figure 1 1 is a system schematic diagram of a first embodiment of an analysis system for evolved gas components of the present invention;

[0018] Figure 2 FIG. 4 is a system schematic diagram of a second embodiment of the system for analyzing evolved gas components of the present invention.

[0019] List of reference numerals:

[0020] 1. Analytical system; 10. Sampling mechanism; 11. First chamber; 12. Second chamber; 13. Third chamber; 14. Fourth chamber; 20. Pipeline; 21. First pipeline; 22. Second pipeline; 23. Third pipeline; 30. Thermogravimetric mechanism; 40. Infrared spectroscopy mechanism; 50. Gas chromatography mechanism; 60. Mass spectrometry mechanism; 70. Control mechanism; 80. On-off valve; 81. First on-off valve; 82. Second on-off valve; 83. Third on-off valve; 90. Flow regulating valve; 91. First flow regulating valve; 92. Second flow regulating valve; 93. Third flow regulating valve; 100. Flow meter; 101. First flow meter; 102. Second flow meter; 103. Third flow meter; 110. Purifier. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0022] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "front", "back", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0023] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "setting", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate medium, or the internal connection of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In order to solve or improve to a certain extent the technical problem of poor accuracy and sensitivity of the analysis of the evolved gas in the prior art, the present invention provides an analysis system 1 for the composition of the evolved gas. The analysis system 1 comprises: a sampling mechanism 10, the sampling mechanism 10 comprises a first chamber 11, a second chamber 12 and a third chamber 13 connected in series in sequence, wherein the first chamber 11 is used to place the sample to be tested; a thermogravimetric mechanism 30, the thermogravimetric mechanism 30 is matched with the first chamber 11 so as to heat the sample to be tested to generate the evolved gas; an infrared spectrometer mechanism 40, the infrared spectrometer mechanism 40 is matched with the second chamber 12 so as to irradiate the evolved gas with infrared light; a gas chromatography mechanism 50, the gas chromatography mechanism 50 is matched with the third chamber 13 so as to process the evolved gas with a chromatographic column; and a control mechanism 70, the control mechanism 70 is respectively connected in communication with the thermogravimetric mechanism 30, the infrared spectrometer mechanism 40 and the gas chromatography mechanism 50 to analyze the composition of the evolved gas.

[0025] Figure 1 FIG. 1 is a schematic diagram of a first embodiment of the system for analyzing the components of evolved gas according to the present invention. Figure 1 As shown, in one or more embodiments, the analyzing system 1 for the components of escaping gas of the present invention includes components such as a sampling mechanism 10, a thermogravimetric mechanism 30, an infrared spectrometer mechanism 40, a gas chromatography mechanism 50 and a control mechanism 70.

[0026] like Figure 1As shown, in one or more embodiments, the mechanism includes a first chamber 11, a second chamber 12 and a third chamber 13 connected in series. Among them, the first chamber 11 is used to place the sample to be tested. The sample to be tested can be flexibly selected according to the test needs, as long as it is non-corrosive, non-radioactive, non-explosive, and non-toxic, so as to prevent damage to each test mechanism (including thermogravimetric mechanism 30, infrared spectroscopy mechanism 40, gas chromatography mechanism 50, etc.) or affect the analysis results. The sample to be tested can be in powder, block, film or fiber shape. The first chamber 11 can be made of suitable materials, such as stainless steel, ceramics, quartz, etc., so that it has good thermal stability and chemical stability. The first chamber 11 and the thermogravimetric mechanism 30 are used to heat the sample to be tested to generate escaping gas, and then perform thermogravimetric analysis on it. The second chamber 12 can be made of suitable materials, such as metal-plated materials (including but not limited to gold-plated brass, gold-plated glass, or a layer of gold-plated copper cylinder embedded on the surface of aluminum alloy, etc.), so that the inner wall is kept smooth, does not absorb infrared rays, does not adsorb escaping gases, and has stable chemical properties. The second chamber 12 is matched with the infrared spectrometer 40 so that infrared light can be used to irradiate the escaping gas, and then infrared spectrometer analysis can be performed on it. The third chamber 13 can be made of suitable materials, such as stainless steel, glass, quartz, etc., so that it has good corrosion resistance, thermal stability and chemical stability. The third chamber 13 is matched with the gas chromatography mechanism 50 so that a chromatographic column can be used to treat the escaping gas, and then gas chromatography analysis can be performed on it.

[0027] like Figure 1 As shown, in one or more embodiments, the first chamber 11, the second chamber 12 and the third chamber 13 are respectively connected through the pipeline 20. Specifically, the first chamber 11 and the second chamber 12 are connected through the first pipeline 21; the second chamber 12 and the third chamber 13 are connected through the second pipeline 22. The first pipeline 21 and the second pipeline 22 can be made of stainless steel, glass, quartz or other suitable materials, so that they have good thermal stability and chemical stability.

[0028] like Figure 1 As shown, in one or more embodiments, each pipeline 20 is further provided with an on-off valve 80 for controlling the opening and closing of the pipeline 20. Specifically, a first on-off valve 81 is provided on the first pipeline 21, and a second on-off valve 82 is provided on the second pipeline 22. The types of the first on-off valve 81 and the second on-off valve 82 are not limited, such as a stop valve, a ball valve, a gate valve, etc. The first on-off valve 81 and the second on-off valve 82 are both communicated with the control mechanism 70 to automatically control the on and off of the first on-off valve 81 and the second on-off valve 82, providing an automatic control level.

[0029] like Figure 1As shown, in one or more embodiments, a flow regulating valve 90 for controlling the flow rate of escaping gas is also provided on each pipeline 20. Specifically, a first flow regulating valve 91 is provided on the first pipeline 21, and a second flow regulating valve 92 is provided on the second pipeline 22. The types of the first flow regulating valve 91 and the second flow regulating valve 92 are not limited, such as a butterfly valve, a regulating valve (including but not limited to a single-seat regulating valve, a double-seat regulating valve, a sleeve regulating valve), etc. The first flow regulating valve 91 and the second flow regulating valve 92 are both connected to the control mechanism 70 in communication so as to automatically control the opening of the first flow regulating valve 91 and the second flow regulating valve 92 to achieve precise regulation of the flow rate of escaping gas. In one or more embodiments, the first flow regulating valve 91 is arranged downstream of the first on-off valve 81, and the second flow regulating valve 92 is arranged downstream of the second on-off valve 82. Alternatively, the arrangement positions of the first flow regulating valve 91 and the second flow regulating valve 92 can be adjusted according to actual needs, for example, the first flow regulating valve 91 is arranged upstream of the first on-off valve 81, or the second flow regulating valve 92 is arranged upstream of the second on-off valve 82, etc.

[0030] like Figure 1 As shown, in one or more embodiments, a flow meter 100 for monitoring the escaped gas flow is also provided on each pipeline 20. Specifically, a first flow meter 101 is provided on the first pipeline 21, and a second flow meter 102 is provided on the second pipeline 22. The types of the first flow meter 101 and the second flow meter 102 are not limited, such as a differential pressure flow meter 100, an electromagnetic flow meter 100, a mass flow meter 100, etc. The first flow meter 101 and the second flow meter 102 are both connected to the control mechanism 70 in communication so as to transmit the measured real-time flow data to the control mechanism 70. In one or more embodiments, the first flow meter 101 is arranged between the first on-off valve 81 and the first flow regulating valve 91, and the second flow meter 102 is arranged between the second on-off valve 82 and the second flow regulating valve 92. Alternatively, the arrangement positions of the first flow meter 101 and the second flow meter 102 can also be adjusted according to actual needs.

[0031] like Figure 1As shown, in one or more embodiments, a purifier 110 is further provided on the pipeline 20 (i.e., the first pipeline 21) between the first chamber 11 and the second chamber 12. The setting of the purifier 110 can effectively filter and pre-treat the escaped gas generated by the test sample to prevent impurities or moisture from affecting subsequent analysis. The type of purifier 110 is not limited, such as an activated carbon purifier 110, a high-efficiency particulate air purifier 110 (i.e., HEPA), etc. The arrangement position of the purifier 110 is not limited, for example, it is arranged upstream of the first on-off valve 81, arranged between the first on-off valve 81 and the first flowmeter 101, arranged between the first flowmeter 101 and the first flow regulating valve 91, or arranged downstream of the first flow regulating valve 91, etc.

[0032] like Figure 1 As shown, the thermogravimetric mechanism 30 is matched with the first chamber 11 to heat the sample to be tested so that it produces escaping gas. The thermogravimetric mechanism 30 includes but is not limited to components such as a thermobalance, a heating furnace, an atmosphere pipe, and a temperature sensor (not shown in the figure). In one or more embodiments, the test parameters of the thermogravimetric mechanism 30 include: a temperature range of 25°C-1200°C, a heating rate of 0-50°C / min, a weight range of 0-200mg, and a carrier gas type of argon, nitrogen, oxygen or air. Through the above settings, the thermogravimetric mechanism 30 can have good test performance to meet the needs of thermogravimetric analysis.

[0033] like Figure 1 As shown, the infrared spectroscopy mechanism 40 is matched with the second chamber 12 so as to irradiate the escaped gas with infrared light. The infrared spectroscopy mechanism 40 includes but is not limited to infrared light sources (such as Nernst lamps, silicon carbide or nickel-chromium spiral filament lamps coated with rare earth compounds), interferometers, detectors (not shown in the figure) and other components. Among them, the detector includes a thermal detector and a light detector. The thermal detector can be deuterated triglycine sulfate (i.e., DTGS), lithium tantalate (LiTaO3), etc., and the light detector can be indium antimonide, mercury cadmium telluride, etc. In one or more embodiments, the test parameters of the infrared spectroscopy mechanism 40 include: the spectral range is 600cm- 1 -4000cm- 1 , resolution better than 0.4cm- 1 , wave number accuracy is better than 0.01cm- 1 , the transmittance accuracy is better than 0.1% T. Through the above settings, the infrared spectrum mechanism 40 can have good testing performance to meet the needs of infrared spectrum analysis.

[0034] like Figure 1As shown, the gas chromatography mechanism 50 is matched with the third chamber 13 so that the escaping gas can be treated with a chromatographic column. The gas chromatography mechanism 50 includes but is not limited to components such as a chromatographic column and a column oven (not shown in the figure) for accommodating the chromatographic column. The material of the chromatographic column can be metal, glass, quartz, etc. The shape of the chromatographic column can be a packed column, a capillary column, etc. In one or more embodiments, the test parameters of the gas chromatography mechanism 50 include: a pressure range of 0-100psi, a pressure control accuracy of 0.001psi, and a column oven range higher than the ambient temperature of 4°C-450°C. Through the above-mentioned settings, the gas chromatography mechanism 50 can have good test performance to meet the needs of gas chromatography analysis.

[0035] like Figure 1 As shown, the control mechanism 70 is respectively connected to the thermogravimetric mechanism 30, the infrared spectroscopy mechanism 40 and the gas chromatography mechanism 50 to form a communication connection so as to control the opening and closing and operation of each detection mechanism according to the set program, and automatically collect, analyze and output the detection results of each detection mechanism. The control mechanism 70 can output a thermogravimetric curve, an absorption spectrum, a transmittance spectrum, a chromatogram, etc. according to actual needs. The connection between the control mechanism 70 and the thermogravimetric mechanism 30, the infrared spectroscopy mechanism 40, and the gas chromatography mechanism 50 can be a wired connection or a wireless connection. In one or more embodiments, the control mechanism 70 is also connected to the on-off valve 80, the flow regulating valve 90, the flow meter 100 and other components in the pipeline 20 to automatically control each component or automatically obtain detection data, thereby improving the level of automatic control.

[0036] Figure 2 FIG. 2 is a schematic diagram of a second embodiment of the system for analyzing the components of the evolved gas according to the present invention. Figure 2 As shown, in one or more embodiments, the sampling mechanism 10 of the analysis system 1 of the present invention further includes a fourth chamber 14. The fourth chamber 14 is arranged in series with the third chamber 13 and is located on the side of the third chamber 13 away from the second chamber 12. The fourth chamber 14 can be made of suitable materials, such as stainless steel, aluminum alloy, ceramic, quartz, etc., so that it has good corrosion resistance, mechanical strength, thermal stability and can withstand high vacuum environment and possible ion bombardment. The fourth chamber 14 and the mass spectrometer mechanism 60 are used to treat the escaped gas by ionization.

[0037] Continue to see Figure 2 In one or more embodiments, the fourth chamber 14 and the third chamber 13 are connected through a pipe 20. Specifically, a third pipe 23 is provided between the fourth chamber 14 and the third chamber 13. The third pipe 23 can be made of stainless steel, glass, quartz or other suitable materials, so that it has good thermal stability and chemical stability.

[0038] Continue to see Figure 2 In one or more embodiments, a third on-off valve 83 for opening and closing the controller is provided on the third pipeline 23. The type of the third on-off valve 83 is not limited, such as a stop valve, a ball valve, a gate valve, etc. The third on-off valve 83 is connected to the control mechanism 70 in communication so as to automatically control its on-off and provide an automatic control level.

[0039] Continue to see Figure 2 In one or more embodiments, a third flow regulating valve 93 for controlling the flow rate of escaping gas is provided on the third pipeline 23. The type of the third flow regulating valve 93 is not limited, such as a butterfly valve, a regulating valve (including but not limited to a single-seat regulating valve, a double-seat regulating valve, a sleeve regulating valve), etc. The third flow regulating valve 93 is connected to the control mechanism 70 in communication so as to automatically adjust its opening to achieve precise regulation of the flow rate of escaping gas. In one or more embodiments, the third flow regulating valve 93 is arranged downstream of the third on-off valve 83. Alternatively, the third flow regulating valve 93 can also be arranged upstream of the third on-off valve 83.

[0040] Continue to see Figure 2 In one or more embodiments, a third flowmeter 103 for monitoring the escaped gas flow is provided on the third pipeline 23. The type of the third flowmeter 103 is not limited, such as a differential pressure flowmeter 100, an electromagnetic flowmeter 100, a mass flowmeter 100, etc. The third flowmeters 103 are all connected to the control mechanism 70 in communication so as to transmit the measured real-time flow data to the control mechanism 70. In one or more embodiments, the third flowmeter 103 is arranged between the third on-off valve 83 and the third flow regulating valve 93. Alternatively, the arrangement position of the third flowmeter 103 can also be adjusted according to actual needs.

[0041] Continue to see Figure 2 , mass spectrometer mechanism 60 matches with the 4th chamber 14, so that adopt ionization mode to process described escaped gas.Mass spectrometer mechanism 60 includes but is not limited to parts such as vacuum pump, ion source (such as electron bombardment source, chemical ionization source, fast atom bombardment source etc.), mass analyzer (such as magnetic analyzer, time-of-flight analyzer, quadrupole analyzer etc.), ion detector (all not shown in the figure).In one or more embodiments, the test parameters of mass spectrometer mechanism 60 include: mass spectrum type is quadrupole, ion source is electron bombardment, and mass number range is 1amu-300amu.Through the above-mentioned setting, mass spectrometer mechanism 60 can be made to have good test performance, to meet the needs of mass spectrometry.

[0042] Continue to see Figure 2In one or more embodiments, the mass spectrometer mechanism 60 is connected to the control mechanism 70 in a communication manner. The mass spectrometer mechanism 60 and the control mechanism 70 may be connected by wire or wirelessly. The control mechanism 70 may control the mass spectrometer mechanism 60 according to a set program, perform mass spectrometry analysis on the escaping gas, and output a mass spectrum, so as to more accurately analyze the molecular formula, structure, relative content, etc. of the escaping gas.

[0043] It should be noted that the control mechanism 70 can flexibly select various test components to meet the diverse needs of the test. For example, the thermogravimetric mechanism 30, the infrared spectroscopy mechanism 40, the gas chromatography mechanism 50 and the mass spectrometry mechanism 60 can be selected for use alone; or they can be selectively used in combination, such as the thermogravimetric mechanism 30-infrared spectroscopy mechanism 40, the thermogravimetric mechanism 30-gas chromatography mechanism 50, the thermogravimetric mechanism 30-mass spectrometry mechanism 60, the thermogravimetric mechanism 30-infrared spectroscopy mechanism 40-gas chromatography mechanism 50, the thermogravimetric mechanism 30-infrared spectroscopy mechanism 40-gas chromatography mechanism 50, the thermogravimetric mechanism 30-infrared spectroscopy mechanism 40-gas chromatography mechanism 50-mass spectrometry mechanism 60, etc.

[0044] In addition, the parts not mentioned in the second embodiment may be configured the same as those in the first embodiment and will not be described in detail here.

[0045] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. An analysis system (1) for escaping gas components, characterized in that: The analysis system (1) comprises: A sampling mechanism (10), the sampling mechanism (10) comprising a first chamber (11), a second chamber (12) and a third chamber (13) which are sequentially connected in series, wherein the first chamber (11) is used to place a sample to be tested; A thermogravimetric mechanism (30), the thermogravimetric mechanism (30) being matched with the first chamber (11) so as to heat the sample to be tested to generate escaping gas; an infrared spectroscopy mechanism (40), the infrared spectroscopy mechanism (40) being matched with the second chamber (12) so as to irradiate the escaped gas with infrared light; a gas chromatography mechanism (50), the gas chromatography mechanism (50) being matched with the third chamber (13) so as to process the escaped gas using a chromatographic column; and A control mechanism (70) is respectively connected in communication with the thermogravimetric mechanism (30), the infrared spectroscopy mechanism (40) and the gas chromatography mechanism (50) to analyze the composition of the escaping gas.

2. The system for analyzing the components of evolved gases (1) according to claim 1, characterized in that: The sampling mechanism (10) further comprises a fourth chamber (14) which is arranged in series with the third chamber (13) and is located on a side of the third chamber (13) away from the second chamber (12); The analysis system (1) comprises a mass spectrometer (60) matched with the fourth chamber (14) so ​​as to process the escaped gas in an ionization manner; and The control mechanism (70) is in communication connection with the mass spectrometry mechanism (60).

3. The system for analyzing the components of evolved gases (1) according to claim 2, characterized in that: The first chamber (11), the second chamber (12), the third chamber (13) and the fourth chamber (14) are connected via a pipeline (20), and each pipeline (20) is provided with an on-off valve (80) that is in communication with the control mechanism (70).

4. The system for analyzing the components of evolved gases (1) according to claim 3, characterized in that: Each pipeline (20) is also provided with a flow regulating valve (90) which is in communication connection with the control mechanism (70).

5. The system for analyzing the components of evolved gases (1) according to claim 3, characterized in that: A flow meter (100) is also provided on each pipeline (20) and is in communication connection with the control mechanism (70).

6. The system for analyzing the components of evolved gases (1) according to claim 3, characterized in that: A purifier (110) is provided on the pipeline (20) between the first chamber (11) and the second chamber (12).

7. The system (1) for analyzing the components of evolved gases according to any one of claims 1 to 6, characterized in that: The test parameters of the thermogravimetric mechanism (30) include: a temperature range of 25°C-1200°C, a heating rate of 0-50°C / min, a weight range of 0-200mg, and a carrier gas type of argon, nitrogen, oxygen or air.

8. The system (1) for analyzing the components of evolved gases according to any one of claims 1 to 6, characterized in that: The test parameters of the infrared spectroscopy mechanism (40) include: a spectral range of 600 cm -1 -4000cm -1 , resolution better than 0.4cm -1 , wave number accuracy is better than 0.01cm -1 , the transmittance accuracy is better than 0.1%T.

9. The system for analyzing the components of evolved gases (1) according to any one of claims 1 to 6, characterized in that: The test parameters of the gas chromatography mechanism (50) include: a pressure range of 0-100 psi, a pressure control accuracy of 0.001 psi, and a column oven temperature range of 4°C-450°C above the ambient temperature.

10. The system (1) for analyzing the components of evolved gases according to any one of claims 2 to 6, characterized in that: The test parameters of the mass spectrometer (60) include: the mass spectrometer type is quadrupole, the ion source is electron bombardment, and the mass number range is 1amu-300amu.

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