Fourier infrared gas spectrum analysis system and method

Abstract

The invention provides a Fourier infrared gas spectrum analysis system and a Fourier infrared gas spectrum analysis method. The Fourier infrared gas spectrum analysis system comprises an automatic gas inlet microtube acquisition subsystem for automatically and multidirectionally acquiring underground sampling point gas through an automatic gas inlet multidirectional microtube acquisition mechanism to obtain sampling point sample gas; the infrared spectrum measurement subsystem is used for carrying out infrared spectrum measurement on the sampling point sample gas through an infrared spectrum measurement mechanism to obtain gas spectrum measurement data; the data Fourier transform analysis subsystem is used for performing Fourier transform processing analysis on the gas spectral measurement data to obtain gas spectral analysis information; and the information feedback industrial control alarm subsystem feeds back gas spectral analysis information to an industrial personal computer control prediction mechanism, judges and predicts abnormal components of the underground dynamic gas and abnormal component content exceeding, and controls the corresponding underground dynamic gas abnormal alarm.

Description

Technical Field

[0001] The present invention relates to the technical field of precise gas detection and downhole communication warning control, and more specifically, the present invention relates to a Fourier transform infrared gas spectroscopy analysis system and method. Background Art

[0002] At present, with the development of exploration technology, precise gas detection and downhole communication warning control are becoming increasingly important; how to automatically sample gases at different sampling points in the well and maintain the balance of dynamic airflow sampling in the well remains to be solved; how to monitor dynamic gases in the well in real time and quickly and accurately analyze, control and alarm the gas content in the well remains to be improved; how to automatically collect gases at sampling points in multiple directions in the well, how to precisely measure the sampled gas at the sampling point, how to quickly and accurately process and analyze the gas spectral measurement data, how to control and predict abnormal components in dynamic gases in the well and predict the over-standard content of abnormal components and conduct corresponding downhole dynamic gas anomaly alarms and other problems remain to be solved; therefore, it is necessary to propose a Fourier transform infrared gas spectroscopy analysis system and method to at least partially solve the problems existing in the prior art. Summary of the Invention

[0003] A series of simplified concepts are introduced in the Summary of the Invention section, which will be further elaborated in the Detailed Description section; the Summary of the Invention section of the present invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the protection scope of the claimed technical solution.

[0004] To at least partially solve the above problems, the present invention provides a Fourier transform infrared gas spectroscopy analysis system, including:

[0005] An automatic intake microtube collection subsystem, which automatically collects gases at downhole sampling points in multiple directions through an automatic intake multi-direction microtube collection mechanism to obtain sampled gas at the sampling point;

[0006] An infrared spectroscopy measurement subsystem, which performs infrared spectroscopy measurement on the sampled gas at the sampling point through an infrared spectroscopy measurement mechanism to obtain gas spectral measurement data;

[0007] A data Fourier transform analysis subsystem, which performs Fourier transform processing and analysis on the gas spectral measurement data to obtain gas spectral analysis information;

[0008] An information feedback industrial control alarm subsystem, which feeds back the gas spectral analysis information to an industrial control computer control prediction mechanism to determine and predict abnormal components in downhole dynamic gases and the over-standard content of abnormal components, and controls the corresponding downhole dynamic gas anomaly alarm.

[0009] Preferably, the automatic intake microtube collection subsystem includes:

[0010] Multi-directional microtube automatic air intake unit, with a multi-directional microtube group extending at the end for multi-directionally collecting gas at underground sampling points;

[0011] Microtube adjustment automatic air intake unit, which detects the air intake pressure of each microtube through a microtube air flow pressure detection and adjustment mechanism, and automatically adjusts to maintain balanced multi-directional air intake volume;

[0012] Air intake filtering and moisture absorption unit, which filters dust and absorbs moisture from the microtube air intake to obtain the sampled gas at the sampling point.

[0013] Preferably, the infrared spectroscopy measurement subsystem includes:

[0014] Shunt injection gas path unit, which obtains a sealed gasket purge gas flow and a shunted gas sample to be measured by passing the sampled gas at the sampling point through a shunt pipeline valve group mechanism; the sealed gasket purge gas flow purges impurities in the pipeline and the sealed gasket at high temperature;

[0015] Gas sample storage unit, which stores the shunted gas sample to be measured through a plunger gas sample cell mechanism;

[0016] IR infrared detection unit, which senses the infrared interference rays passing through the plunger gas sample cell mechanism through an infrared IR detector, conducts infrared spectroscopy measurement, and obtains gas spectroscopy measurement data.

[0017] Preferably, the data Fourier transform analysis subsystem includes:

[0018] Spectrum measurement digital transformation unit, which transforms the gas spectroscopy measurement data into a gas spectroscopy measurement digital signal through signal digitization according to the gas spectroscopy measurement data;

[0019] High-speed operation processing unit, which processes the gas spectroscopy measurement digital signal by using Fourier transform through a high-speed operation processor to obtain an infrared absorption spectrogram;

[0020] Infrared spectrogram analysis unit, which analyzes the infrared absorption spectrogram according to the infrared absorption spectrogram to obtain gas spectroscopy analysis information.

[0021] Preferably, the information feedback industrial control alarm subsystem includes:

[0022] Underground communication transmission unit, which feeds back the gas spectroscopy analysis information to the industrial control machine control mechanism through an underground communication transmission link;

[0023] Industrial control machine control prediction unit, which determines and predicts whether there are abnormal underground gas components and whether the content of abnormal components exceeds the standard through the industrial control machine control mechanism, and triggers a corresponding underground dynamic gas anomaly alarm control signal;

[0024] Underground gas anomaly alarm unit, which alarms the abnormal underground gas components and the exceeding of the content of abnormal components according to the underground dynamic gas anomaly alarm control signal through an underground gas anomaly alarm mechanism.

[0025] The present invention provides a Fourier transform infrared gas spectral analysis method, including:

[0026] S01, automatically and multi-directionally collecting the gas at the downhole sampling point through an automatic intake multi-directional microtube collecting mechanism to obtain the sampled gas at the sampling point;

[0027] S02, performing infrared spectral measurement on the sampled gas at the sampling point through an infrared spectral measurement mechanism to obtain gas spectral measurement data;

[0028] S03, performing Fourier transform processing and analysis on the gas spectral measurement data to obtain gas spectral analysis information;

[0029] S04, feeding back the gas spectral analysis information to the industrial control computer control and prediction mechanism, and feeding back the gas spectral analysis information to the industrial control computer control and prediction mechanism to determine and predict abnormal components and excessive content of abnormal components in the downhole dynamic gas, and controlling the corresponding downhole dynamic gas abnormal alarm.

[0030] Preferably, S01 includes:

[0031] S011, setting an end-extended multi-directional microtube group to multi-directionally collect the gas at the downhole sampling point;

[0032] S012, detecting the inlet air flow pressure of each microtube through a microtube air flow pressure detection and adjustment mechanism, and automatically adjusting to keep the multi-directional intake air volume balanced;

[0033] S013, performing dust filtration and moisture absorption filtration on the microtube inlet air to obtain the sampled gas at the sampling point.

[0034] Preferably, S02 includes:

[0035] S021, passing the sampled gas at the sampling point through a shunt pipeline valve group mechanism to obtain a sealed gasket purge air flow and a shunt measured sample gas; the sealed gasket purge air flow purges the impurities in the pipeline and the sealed gasket at a high temperature;

[0036] S022, storing the shunt measured sample gas through a plunger gas sample cell mechanism;

[0037] S023, inducing the infrared interference rays passing through the plunger gas sample cell mechanism through an infrared IR detector to perform infrared spectral measurement to obtain gas spectral measurement data.

[0038] Preferably, S03 includes:

[0039] S031, according to the gas spectral measurement data, digitally transforming the signal into a gas spectral measurement digital signal;

[0040] S032. The digital signal of gas spectrum measurement is processed by a high-speed operation processor using Fourier transform to obtain an infrared absorption spectrogram.

[0041] S033. According to the infrared absorption spectrogram, infrared absorption spectrogram analysis is carried out to obtain gas spectrum analysis information.

[0042] Preferably, S04 includes:

[0043] S041. The gas spectrum analysis information is fed back to the industrial control computer control mechanism through the downhole communication transmission link.

[0044] S042. The industrial control computer control mechanism determines whether there are abnormal components in the downhole gas and whether the content of abnormal components exceeds the standard, and triggers the corresponding downhole dynamic gas anomaly alarm control signal.

[0045] S043. According to the downhole dynamic gas anomaly alarm control signal, through the downhole gas anomaly alarm mechanism, an alarm is made for the abnormal components in the downhole gas and the content of abnormal components exceeding the standard. Compared with the prior art, the present invention has at least the following beneficial effects:

[0046] The present invention provides a Fourier transform infrared gas spectrum analysis system and method. The automatic air intake microtube collection subsystem includes: a multi-directional microtube automatic air intake unit, which is provided with a multi-directional microtube group extending at the end to collect gas at multiple downhole sampling points in a multi-directional manner; a microtube adjustment automatic air intake unit, which detects the air flow pressure of each microtube through a microtube air flow pressure detection and adjustment mechanism, and automatically adjusts to keep the air intake volume of multi-directional collection balanced; an air intake filtration and moisture absorption unit, which filters dust and absorbs moisture from the microtube air intake to obtain the sampled gas at the sampling point. The multi-directional microtube group extending at the end includes: an end multi-directional extended air intake port, multi-directional microtubes and a steering port regulating valve; the steering port regulating valve adjusts the air flow size of the end multi-directional extended air intake port, increasing the air flow at the air intake port in the direction opposite to the downhole air flow and decreasing the air flow at the air intake port in the direction facing the downhole air flow, to balance the air flow pressure difference and air intake volume difference caused by the downhole air flow. Detecting the air flow pressure of each microtube through the microtube air flow pressure detection and adjustment mechanism and automatically adjusting to keep the air intake volume of multi-directional collection balanced includes: detecting the air flow pressure of each microtube through the microtube air flow pressure detection and adjustment mechanism, obtaining the microtube air flow pressure detection data, and automatically adjusting the microtube air flow according to the microtube air flow pressure detection data to keep the air intake volume of multi-directional collection balanced, improving the monitoring accuracy and timeliness; which has great significance and remarkable effects.

[0047] For the Fourier transform infrared gas spectrum analysis system and method of the present invention, other advantages, objectives and features of the present invention will be partially reflected by the following description and partially understood by those skilled in the art through the research and practice of the present invention. Description of the Drawings

[0048] The accompanying drawings are used to provide a further understanding of the present invention and form a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. In the accompanying drawings:

[0049] Figure 1 This is a diagram of an embodiment of a Fourier transform infrared gas spectroscopy analysis system according to the present invention.

[0050] Figure 2 This is a diagram of another embodiment of a Fourier transform infrared gas spectroscopy analysis system according to the present invention.

[0051] Figure 3 This is a diagram of an embodiment of a curve of a Fourier transform infrared gas spectroscopy analysis system and method according to the present invention. Detailed implementation manners

[0052] The following further describes the present invention in detail with reference to the accompanying drawings and embodiments, so that those skilled in the art can implement it according to the description. As shown in the figure, the present invention provides a Fourier transform infrared gas spectroscopy analysis system, including:

[0053] An automatic intake microtube sampling subsystem, which automatically and multi-directionally samples the gas at the underground sampling point through an automatic intake multi-directional microtube sampling mechanism to obtain the sampled gas at the sampling point;

[0054] An infrared spectroscopy measurement subsystem, which measures the infrared spectrum of the sampled gas at the sampling point through an infrared spectroscopy measurement mechanism to obtain gas spectrum measurement data;

[0055] A data Fourier transform analysis subsystem, which performs Fourier transform processing and analysis on the gas spectrum measurement data to obtain gas spectrum analysis information;

[0056] An information feedback industrial control alarm subsystem, which feeds back the gas spectrum analysis information to the industrial control computer control prediction mechanism to determine and predict the abnormal components and the excessive content of abnormal components in the underground dynamic gas, and controls the corresponding underground dynamic gas abnormal alarm.

[0057] The principle and effect of the above technical solution are as follows: The present invention provides a Fourier transform infrared gas spectroscopy analysis system, including: an automatic intake microtube sampling subsystem, which automatically and multi-directionally samples the gas at the underground sampling point through an automatic intake multi-directional microtube sampling mechanism to obtain the sampled gas at the sampling point; an infrared spectroscopy measurement subsystem, which measures the infrared spectrum of the sampled gas at the sampling point through an infrared spectroscopy measurement mechanism to obtain gas spectrum measurement data; a data Fourier transform analysis subsystem, which performs Fourier transform processing and analysis on the gas spectrum measurement data to obtain gas spectrum analysis information; an information feedback industrial control alarm subsystem, which feeds back the gas spectrum analysis information to the industrial control computer control prediction mechanism to determine and predict the abnormal components and the excessive content of abnormal components in the underground dynamic gas, and controls the corresponding underground dynamic gas abnormal alarm.

[0058] In one embodiment, the automatic intake microtube collection subsystem includes:

[0059] A multi-directional microtube automatic intake unit, which is provided with a multi-directional microtube group extending at the end, and collects gases at sampling points in the wellbore in multiple directions;

[0060] A microtube adjustment automatic intake unit, which detects the intake air pressure of each microtube through a microtube air flow pressure detection and adjustment mechanism, and automatically adjusts to keep the intake air volume balanced in multi-directional collection;

[0061] An intake air filtering and moisture absorption unit, which filters dust and absorbs moisture from the microtube intake air to obtain the sampled gas at the sampling point.

[0062] The principle and effect of the above technical solution are as follows: The automatic intake microtube collection subsystem includes: a multi-directional microtube automatic intake unit, which is provided with a multi-directional microtube group extending at the end, and collects gases at sampling points in the wellbore in multiple directions; a microtube adjustment automatic intake unit, which detects the intake air pressure of each microtube through a microtube air flow pressure detection and adjustment mechanism, and automatically adjusts to keep the intake air volume balanced in multi-directional collection; an intake air filtering and moisture absorption unit, which filters dust and absorbs moisture from the microtube intake air to obtain the sampled gas at the sampling point; the multi-directional microtube group 011 extending at the end includes: a multi-directional extended intake port 111 at the end, multi-directional microtubes 112, and a steering port regulating valve 113; the multi-directional extended intake port at the end extends in multiple directions to the sampling points in the wellbore, and collects gases at multiple positions and in multiple directions in the wellbore; the steering port regulating valve adjusts the air flow size of the multi-directional extended intake port at the end, increases the air flow at the intake port in the direction opposite to the wellbore air flow, and decreases the air flow at the intake port in the direction facing the wellbore air flow, to balance the air flow pressure difference and intake air volume difference caused by the wellbore air flow; detecting the intake air pressure of each microtube through the microtube air flow pressure detection and adjustment mechanism and automatically adjusting to keep the intake air volume balanced in multi-directional collection includes: setting the microtube air flow pressure detection and adjustment mechanism to be connected to the multi-directional microtube group extending at the end; the microtube air flow pressure detection and adjustment mechanism includes: a microtube air flow pressure detection group 012 and an air flow pressure adjustment group 013; the microtube air flow pressure detection group includes multiple air flow pressure detectors, and each air flow pressure detector corresponds to one-direction air path microtube of the multi-directional microtubes respectively, and detects the intake air pressure of one microtube; through the microtube air flow pressure detection group of the microtube air flow pressure detection and adjustment mechanism, the intake air pressure of each microtube is detected to obtain microtube air flow pressure detection data; according to the microtube air flow pressure detection data, through the air flow pressure adjustment group, the steering port regulating valve is controlled to automatically adjust the intake air flow of the microtubes in each direction air path; when the intake air pressure of the microtube is high and the flow rate is high, the opening degree of the steering port regulating valve is controlled to decrease, and when the intake air pressure of the microtube is low and the flow rate is low, the opening degree of the steering port regulating valve is controlled to increase, to keep the intake air volume balanced in multi-directional collection.

[0063] In one embodiment, the infrared spectroscopy measurement subsystem includes:

[0064] Split injection gas path unit, which passes the sampled gas at the sampling point through the split pipeline valve group mechanism to obtain the purge gas flow for the sealing gasket and the split gas sample to be measured; the purge gas flow for the sealing gasket purges the impurities in the pipeline and the sealing gasket at high temperature;

[0065] Gas sample storage unit, which stores the split gas sample to be measured through the plunger gas sample cell mechanism;

[0066] IR infrared detection unit, through the infrared IR detector, senses the infrared interference rays passing through the plunger gas sample cell mechanism, performs infrared spectroscopy measurement, and obtains gas spectroscopy measurement data.

[0067] The principle and effect of the above technical solution are as follows: The infrared spectroscopy measurement subsystem includes: a split injection gas path unit, which passes the sampled gas at the sampling point through the split pipeline valve group mechanism to obtain the purge gas flow for the sealing gasket and the split gas sample to be measured; the purge gas flow for the sealing gasket purges the impurities in the pipeline and the sealing gasket at high temperature; a gas sample storage unit, which stores the split gas sample to be measured through the plunger gas sample cell mechanism; an IR infrared detection unit, through the infrared IR detector, senses the infrared interference rays passing through the plunger gas sample cell mechanism, performs infrared spectroscopy measurement, and obtains gas spectroscopy measurement data; the plunger gas sample cell includes: a double-ended transparent sample cell 211, a plunger shut-off valve 212, a plunger gas inlet 213, a plunger gas outlet 214, a double-ended radiation-proof seal 215, and a detection sealing mechanism 216; the double-ended transparent sample cell is a stainless steel coated cavity gas cell, and high-transmission glass is provided and sealed inside both ends; the plunger gas inlet and the plunger gas outlet are respectively arranged near both ends of the stainless steel coated cavity gas cell and are respectively connected to the gas source pump and the exhaust pump; two groups of plunger shut-off valves are respectively arranged at the plunger gas inlet and the plunger gas outlet to control the opening and closing of the plunger gas inlet and the plunger gas outlet; the double-ended radiation-proof seal seals the double-ended transparent sample cell and the detection induction end of the infrared IR detector; the detection sealing mechanism seals between the detection component and the plunger gas sample cell; significantly improves the detection precision and the stability of the detection induction end, and significantly reduces the interference of external radiation and ambient light.

[0068] In one embodiment, the data Fourier transform analysis subsystem includes:

[0069] Spectral measurement digital transformation unit, according to the gas spectroscopy measurement data, digitally transforms the signal into a gas spectroscopy measurement digital signal;

[0070] High-speed operation processing unit, uses the Fourier transform to process the gas spectroscopy measurement digital signal through a high-speed operation processor to obtain an infrared absorption spectrogram;

[0071] Infrared spectrogram analysis unit, according to the infrared absorption spectrogram, performs infrared absorption spectrogram analysis to obtain gas spectroscopy analysis information.

[0072] The principle and effect of the above technical solution are as follows: The data Fourier transform analysis subsystem includes: a spectral measurement digital transformation unit that transforms gas spectral measurement data into gas spectral measurement digital signals through signal digitization according to the gas spectral measurement data; a high-speed operation processing unit that processes the gas spectral measurement digital signals by using Fourier transform through a high-speed operation processor to obtain an infrared absorption spectrogram; and an infrared spectrogram analysis unit that analyzes the infrared absorption spectrogram to obtain gas spectral analysis information.

[0073] In one embodiment, the information feedback industrial control alarm subsystem includes:

[0074] A downhole communication transmission unit that feeds back gas spectral analysis information to the industrial control machine control mechanism through a downhole communication transmission link;

[0075] An industrial control machine control prediction unit that determines and predicts whether there are abnormal components and excessive content of abnormal components in the downhole gas through the industrial control machine control mechanism, and triggers corresponding downhole dynamic gas abnormal alarm control signals;

[0076] A downhole gas abnormal alarm unit that alarms the abnormal components and excessive content of abnormal components in the downhole gas through a downhole gas abnormal alarm mechanism according to the downhole dynamic gas abnormal alarm control signal.

[0077] The principle and effect of the above technical solution are as follows: The information feedback industrial control alarm subsystem includes: a downhole communication transmission unit that feeds back gas spectral analysis information to the industrial control machine control mechanism through a downhole communication transmission link; an industrial control machine control prediction unit that determines and predicts whether there are abnormal components and excessive content of abnormal components in the downhole gas through the industrial control machine control mechanism, and triggers corresponding downhole dynamic gas abnormal alarm control signals; a downhole gas abnormal alarm unit that alarms the abnormal components and excessive content of abnormal components in the downhole gas through a downhole gas abnormal alarm mechanism according to the downhole dynamic gas abnormal alarm control signal; determining and predicting whether there are abnormal components and excessive content of abnormal components in the downhole gas through the industrial control machine control mechanism and triggering corresponding downhole dynamic gas abnormal alarm control signals includes: determining whether there are abnormal components and excessive content of abnormal components in the downhole gas in the gas spectral analysis information through the industrial control machine control mechanism, inferring the source directions of the abnormal components of each gas in the downhole gas dynamic airflow, and predicting the accumulation state of the flow directions of the abnormal components of each gas in the downhole gas dynamic airflow; when there are abnormal components in the downhole gas, or the content of abnormal components exceeds the standard, or there is a dangerous gas source in the source direction of the abnormal components of the gas, or the predicted accumulation of the flow direction of the abnormal components of the gas exceeds the standard, corresponding downhole dynamic gas abnormal alarm control signals are triggered.

[0078] The present invention provides a Fourier transform infrared gas spectral analysis method, including:

[0079] S01. Automatically and multi-directionally collect the gas at the underground sampling point through the automatic intake multi-directional microtube collection mechanism to obtain the sampled gas at the sampling point;

[0080] S02. Perform infrared spectrum measurement on the sampled gas at the sampling point through the infrared spectrum measurement mechanism to obtain the gas spectrum measurement data;

[0081] S03. Perform Fourier transform processing and analysis on the gas spectrum measurement data to obtain the gas spectrum analysis information;

[0082] S04. Feed back the gas spectrum analysis information to the industrial control computer control and prediction mechanism, and feed back the gas spectrum analysis information to the industrial control computer control and prediction mechanism to determine and predict the abnormal components and the excessive content of abnormal components in the underground dynamic gas, and control the corresponding underground dynamic gas abnormal alarm.

[0083] The principle and effect of the above technical solution are as follows: The present invention provides a Fourier transform infrared gas spectrum analysis method, including: automatically and multi-directionally collecting the gas at the underground sampling point through the automatic intake multi-directional microtube collection mechanism to obtain the sampled gas at the sampling point; performing infrared spectrum measurement on the sampled gas at the sampling point through the infrared spectrum measurement mechanism to obtain the gas spectrum measurement data; performing Fourier transform processing and analysis on the gas spectrum measurement data to obtain the gas spectrum analysis information; feeding back the gas spectrum analysis information to the industrial control computer control and prediction mechanism, and feeding back the gas spectrum analysis information to the industrial control computer control and prediction mechanism to determine and predict the abnormal components and the excessive content of abnormal components in the underground dynamic gas, and control the corresponding underground dynamic gas abnormal alarm.

[0084] In one embodiment, S01 includes:

[0085] S011. Set the end-extended multi-directional microtube group to collect the gas at the underground sampling point multi-directionally;

[0086] S012. Detect the intake air pressure of each microtube through the microtube air flow pressure detection and adjustment mechanism, and automatically adjust to keep the multi-directional collection intake air volume balanced;

[0087] S013. Filter the dust and absorb moisture from the microtube intake air to obtain the sampled gas at the sampling point.

[0088] The principle and effects of the above technical solution are as follows: A multi-directional microtube group is provided at the end for multi-directionally collecting the gas at the downhole sampling points; through the microtube air flow pressure detection and adjustment mechanism, the air flow pressure of each microtube inlet is detected, and the multi-directional collection air intake is automatically adjusted to be balanced; the microtube air intake is filtered for dust and moisture absorption to obtain the sample gas at the sampling point; the multi-directional microtube group 011 at the end includes: a multi-directional extended air inlet 111 at the end, multi-directional microtubes 112, and a steering port regulating valve 113; the multi-directional extended air inlet at the end extends in multiple directions to the downhole sampling points to collect the gas in multiple positions and directions underground; the steering port regulating valve adjusts the air flow size of the multi-directional extended air inlet at the end, increasing the air flow at the air inlet in the direction opposite to the downhole air flow and decreasing the air flow at the air inlet in the direction facing the downhole air flow to balance the air flow pressure difference and air intake difference caused by the downhole air flow; through the microtube air flow pressure detection and adjustment mechanism, detecting the air flow pressure of each microtube inlet and automatically adjusting to keep the multi-directional collection air intake balanced includes: setting the microtube air flow pressure detection and adjustment mechanism to be connected to the multi-directional microtube group at the end; the microtube air flow pressure detection and adjustment mechanism includes: a microtube air flow pressure detection group 012 and an air flow pressure adjustment group 013; the microtube air flow pressure detection group includes multiple air flow pressure detectors, and each air flow pressure detector corresponds to a microtube of one direction of the multi-directional microtubes respectively to detect the air flow pressure of one microtube inlet; through the microtube air flow pressure detection group of the microtube air flow pressure detection and adjustment mechanism, the air flow pressure of each microtube inlet is detected to obtain the microtube air flow pressure detection data; according to the microtube air flow pressure detection data, through the air flow pressure adjustment group, the steering port regulating valve is controlled to automatically adjust the microtube air intake of each direction of the microtubes; when the air intake pressure and flow rate of the inlet microtube are large, the opening degree of the steering port regulating valve is controlled to decrease, and when the air intake pressure and flow rate of the inlet microtube are small, the opening degree of the steering port regulating valve is controlled to increase to keep the multi-directional collection air intake balanced.

[0089] In one embodiment, S02 includes:

[0090] S021, passing the sample gas at the sampling point through the shunt pipeline valve group mechanism to obtain the sealed gasket purge air flow and the shunted sample gas to be measured; the sealed gasket purge air flow purges the impurities in the pipeline and the sealed gasket at a high temperature;

[0091] S022, storing the shunted sample gas to be measured through the plunger gas sample cell mechanism;

[0092] S023, through the infrared IR detector, sensing the infrared interference rays passing through the plunger gas sample cell mechanism to perform infrared spectroscopy measurement and obtain the gas spectroscopy measurement data.

[0093] The principle and effect of the above technical solution are as follows: The sampled sample gas passes through the shunt pipeline valve group mechanism to obtain the sealed gasket purge gas flow and the shunted sample gas to be measured; the sealed gasket purge gas flow purges the pipeline and the impurities of the sealed gasket at high temperature; the shunted sample gas to be measured is stored through the plunger gas sample cell mechanism; through the infrared IR detector, the infrared interference rays passing through the plunger gas sample cell mechanism are sensed to perform infrared spectroscopy measurement to obtain gas spectroscopy measurement data; the plunger gas sample cell includes: a double-ended transparent sample cell 211, a plunger sealing valve 212, a plunger air inlet 213, a plunger exhaust port 214, a double-ended anti-radiation seal 215, and a detection sealing mechanism 216; the double-ended transparent sample cell is a stainless steel coated cavity gas cell, and high-transmission glass is provided and sealed inside both ends; the plunger air inlet and the plunger exhaust port are respectively arranged near both ends of the stainless steel coated cavity gas cell and are respectively connected to the gas source pump and the exhaust pump; two groups of plunger sealing valves are respectively arranged at the plunger air inlet and the plunger exhaust port to control the opening and closing of the plunger air inlet and the plunger exhaust port; the double-ended anti-radiation seal seals the double-ended transparent sample cell and the detection induction end of the infrared IR detector; the detection sealing mechanism seals between the detection component and the plunger gas sample cell; significantly improves the detection precision and the stability of the detection induction end, and significantly reduces the interference of external radiation and ambient light.

[0094] In one embodiment, S03 includes:

[0095] S031, according to the gas spectroscopy measurement data, transform it into a gas spectroscopy measurement digital signal through signal digitization;

[0096] S032, use a high-speed operation processor to process the gas spectroscopy measurement digital signal by Fourier transform to obtain an infrared absorption spectrogram;

[0097] S033, according to the infrared absorption spectrogram, perform infrared absorption spectrogram analysis to obtain gas spectroscopy analysis information.

[0098] The principle and effect of the above technical solution are as follows: According to the gas spectroscopy measurement data, transform it into a gas spectroscopy measurement digital signal through signal digitization; use a high-speed operation processor to process the gas spectroscopy measurement digital signal by Fourier transform to obtain an infrared absorption spectrogram; according to the infrared absorption spectrogram, perform infrared absorption spectrogram analysis to obtain gas spectroscopy analysis information.

[0099] In one embodiment, S04 includes:

[0100] S041, through the downhole communication transmission link, feedback the gas spectroscopy analysis information to the industrial control computer control mechanism;

[0101] S042, through the industrial control computer control mechanism, determine whether there are abnormal components and abnormal component content exceeding the standard in the downhole gas, and trigger the corresponding downhole dynamic gas anomaly alarm control signal;

[0102] S043. According to the downhole dynamic gas abnormal alarm control signal, through the downhole gas abnormal alarm mechanism, an alarm is given for the abnormal components and the excessive content of the abnormal components in the downhole gas.

[0103] The principle and effect of the above technical solution are as follows: Through the downhole communication transmission link, the gas spectral analysis information is fed back to the industrial control computer control mechanism; through the industrial control computer control mechanism, it is determined and predicted whether there are abnormal components and excessive content of abnormal components in the downhole gas, and the corresponding downhole dynamic gas abnormal alarm control signal is triggered; according to the downhole dynamic gas abnormal alarm control signal, through the downhole gas abnormal alarm mechanism, an alarm is given for the abnormal components and the excessive content of the abnormal components in the downhole gas; through the industrial control computer control mechanism, it is determined and predicted whether there are abnormal components and excessive content of abnormal components in the downhole gas, and the triggering of the corresponding downhole dynamic gas abnormal alarm control signal includes: through the industrial control computer control mechanism, it is determined whether there are abnormal components and excessive content of abnormal components in the gas spectral analysis information, the source directions of the abnormal components of each gas in the downhole gas dynamic airflow are inferred, and the accumulation state of the flow directions of the abnormal components of each gas in the downhole gas dynamic airflow is predicted; when there are abnormal components in the downhole gas, or the content of the abnormal components exceeds the standard, or there is a dangerous gas source in the source direction of the abnormal components of the gas, or the predicted accumulation of the flow direction of the abnormal components of the gas exceeds the standard, the corresponding downhole dynamic gas abnormal alarm control signal is triggered.

[0104] Although the embodiments of the present invention have been disclosed as above, it is not limited to only the applications listed in the specification and the embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, additional modifications can be easily made. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the examples shown and described here.

Claims

1. A Fourier transform infrared gas spectroscopy analysis system, characterized in that include: The automatic air intake micro-tube collection subsystem automatically collects gas from downhole sampling points in multiple directions through the automatic air intake multi-directional micro-tube collection mechanism to obtain sample gas from the sampling points; The infrared spectrum measurement subsystem performs infrared spectrum measurement on the sample gas at the sampling point through the infrared spectrum measurement mechanism to obtain gas spectrum measurement data; The data Fourier transform analysis subsystem performs Fourier transform processing and analysis on the gas spectrum measurement data to obtain gas spectrum analysis information; The information feedback industrial control alarm subsystem feeds back the gas spectrum analysis information to the industrial computer control prediction mechanism, determines and predicts the abnormal components of the underground dynamic gas and the excessive content of the abnormal components, and controls the corresponding underground dynamic gas abnormal alarm.

2. The Fourier transform infrared gas spectroscopy analysis system according to claim 1, wherein Automatic air intake micro-tube collection subsystem, including: The multi-directional micro-tube automatic air intake unit is equipped with a multi-directional micro-tube group extending at the end to collect gas from the downhole sampling point in multiple directions; The micro-tube automatic air intake unit detects the air intake pressure of each micro-tube through the micro-tube airflow pressure detection and adjustment mechanism, and automatically adjusts to maintain the balance of multi-directional air intake; The air intake filter and moisture absorption unit performs dust and moisture absorption filtration on the micro-tube air intake to obtain sample gas at the sampling point.

3. A Fourier transform infrared gas spectroscopy analysis system according to claim 1, characterized in that Infrared spectrum measurement subsystem, including: The split sampling gas line unit passes the sample gas at the sampling point through the split pipeline valve group mechanism to obtain the sealing gasket purge gas flow and split the sample gas to be tested; the sealing gasket purge gas flow high temperature purges the pipeline and the sealing gasket impurities; The gas sample storage unit stores and diverts the sample gas to be tested through a plunger gas sample pool mechanism; The IR infrared detection unit senses the infrared interference rays passing through the plunger gas sample cell mechanism through the infrared IR detector, performs infrared spectrum measurement, and obtains gas spectrum measurement data.

4. A Fourier transform infrared gas spectroscopy analysis system according to claim 1, characterized in that, Data Fourier transform analysis subsystem, including: The spectrum measurement digital conversion unit converts the gas spectrum measurement data into a gas spectrum measurement digital signal through signal digitization; A high-speed computing processing unit processes the gas spectrum measurement digital signal by Fourier transform through a high-speed computing processor to obtain an infrared absorption spectrum diagram; The infrared spectrum analysis unit performs infrared absorption spectrum analysis according to the infrared absorption spectrum to obtain gas spectrum analysis information.

5. The Fourier transform infrared gas spectroscopy analysis system according to claim 1, wherein, Information feedback industrial control alarm subsystem, including: The downhole communication transmission unit feeds back the gas spectrum analysis information to the industrial computer control mechanism through the downhole communication transmission link; The prediction unit is controlled by the industrial computer. The industrial computer control mechanism determines and predicts whether there are abnormal gas components in the well and whether the content of abnormal components exceeds the standard, and triggers the corresponding abnormal gas alarm control signal in the well. The underground gas abnormality alarm unit, according to the underground dynamic gas abnormality alarm control signal, uses the underground gas abnormality alarm mechanism to alarm the underground gas abnormal components and the excessive content of the abnormal components.

6. A Fourier transform infrared gas spectral analysis method, characterized in that, include: S01, automatically collecting gas from downhole sampling points in multiple directions through an automatic gas inlet multi-directional micro-tube collection mechanism to obtain sample gas from the sampling points; S02, performing infrared spectrum measurement on the sample gas at the sampling point through an infrared spectrum measurement mechanism to obtain gas spectrum measurement data; S03, performing Fourier transform processing and analysis on the gas spectrum measurement data to obtain gas spectrum analysis information; S04, feedback the gas spectral analysis information to the industrial control computer to control the prediction mechanism, feedback the gas spectral analysis information to the industrial control computer to control the prediction mechanism, determine and predict the abnormal components and the excessive content of abnormal components in the downhole dynamic gas, and control the corresponding downhole dynamic gas abnormal alarm.

7. A Fourier transform infrared gas spectral analysis method according to claim 6, characterized in that, S01 includes: S011, set the end extended multi-directional microtube group to collect the gas at the downhole sampling points in multiple directions; S012, through the microtube air flow pressure detection and adjustment mechanism, detect the air inlet pressure of each microtube, and automatically adjust to keep the intake air volume balanced for multi-directional collection; S013, filter the dust and absorb moisture from the microtube intake air to obtain the sampled gas at the sampling point.

8. A Fourier transform infrared gas spectral analysis method according to claim 6, characterized in that, S02 includes: S021, obtain the sealed gasket purge air flow and the shunted gas sample to be measured by passing the sampled gas at the sampling point through the shunt pipeline valve group mechanism; the sealed gasket purge air flow purges the impurities in the pipeline and the sealed gasket at high temperature; S022, store the shunted gas sample to be measured through the plunger gas sample cell mechanism; S023, through the infrared IR detector, sense the infrared interference rays passing through the plunger gas sample cell mechanism, perform infrared spectrum measurement, and obtain the gas spectrum measurement data.

9. The Fourier transform infrared gas spectral analysis method according to claim 6, characterized in that S03 includes: S031, according to the gas spectrum measurement data, transform it into a gas spectrum measurement digital signal through signal digitization; S032, use the high-speed operation processor to process the gas spectrum measurement digital signal by Fourier transform to obtain the infrared absorption spectrogram; S033, according to the infrared absorption spectrogram, perform infrared absorption spectrogram analysis to obtain the gas spectral analysis information.

10. A Fourier transform infrared gas spectroscopy analysis method according to claim 6, characterized in that, S04 includes: S041, feedback the gas spectral analysis information to the industrial control computer control mechanism through the downhole communication transmission link; S042, determine and predict whether there are abnormal components and excessive content of abnormal components in the downhole gas through the industrial control computer control mechanism, and trigger the corresponding downhole dynamic gas abnormal alarm control signal; S043, according to the downhole dynamic gas abnormal alarm control signal, through the downhole gas abnormal alarm mechanism, alarm the abnormal components and excessive content of abnormal components in the downhole gas.

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