Explosion-proof gas analyzer based on Fourier logging gas logging

Abstract

The utility model discloses an explosion-proof gas analyzer based on Fourier logging gas logging, and belongs to the technical field of gas analyzers. The explosion-proof gas analyzer based on Fourier logging gas logging comprises an explosion-proof assembly, a mounting assembly, a gas analyzer body and a dust removal assembly, the mounting assembly is arranged in the explosion-proof assembly, the gas analyzer body is arranged in the mounting assembly, the dust removal assembly is arranged below the gas analyzer body, and the dust removal assembly is arranged below the gas analyzer body. The gas analyzer body is used for analyzing and detecting logging gas, the dedusting assembly is used for dedusting to-be-analyzed logging gas and comprises a pair of placement seats, a dedusting cylinder and a sealing cylinder are arranged on the pair of placement seats, an anode tube is connected into the dedusting cylinder, and the outer wall of the anode tube is fixedly connected with the inner wall of the dedusting cylinder. A round hole is formed in the end, away from the sealing cylinder, of the dust removal cylinder, a cathode bar is connected into the round hole, and one end of the cathode bar extends into the anode tube.

Description

Technical Field

[0001] This utility model relates to the field of gas analyzer technology, specifically an explosion-proof gas analyzer based on Fourier logging gas measurement. Background Technology

[0002] Logging gas refers to the various gaseous components carried by the drilling fluid returning from the bottom of the well during the drilling process. A Fourier transform infrared (FTIR) gas analyzer is an instrument that uses the principle of infrared spectroscopy to perform qualitative and quantitative analysis of gases. Utilizing infrared spectroscopy for molecular analysis and identification, the infrared light emitted by the instrument's light source is modulated into interference light by an interferometer. This interference light carries information about all wavelengths of the light source. When the interference light passes through a sample cell containing the gas to be measured, the gas molecules absorb infrared light of specific wavelengths, causing a change in the intensity of the interference light. The detector converts the optical signal into an electrical signal, which is then acquired by a computer and subjected to a Fourier transform to obtain the infrared spectrum. Different gas molecules have unique absorption spectra. By comparing these spectra with a standard spectral library, the composition of the gas can be determined, and the concentration of the gas can be quantitatively analyzed based on the intensity of the absorption peaks.

[0003] Based on the above, the inventors have discovered the following problems: Current explosion-proof gas analyzers generally install Fourier transform infrared spectroscopy gas analyzers inside explosion-proof cabinets to achieve explosion-proof protection for the gas analyzers. However, in actual use, current explosion-proof gas analyzers do not facilitate the pre-treatment and removal of dust particles inside the logging gas. When logging gas containing a large number of dust particles enters the gas analyzer's gas cell, the dust particles may adhere to the lens of the gas cell, blocking or scattering light and weakening the light signal intensity. At the same time, dust will contaminate the inner wall of the gas cell, and long-term accumulation may change the optical properties inside the gas cell, affecting the propagation and absorption of light within the cell, and reducing the sensitivity and accuracy of the gas analyzer.

[0004] Therefore, in view of this, we will study and improve the existing structure and its shortcomings, and provide an explosion-proof gas analyzer based on Fourier logging gas measurement, in order to achieve a more practical value. Utility Model Content

[0005] The purpose of this invention is to provide an explosion-proof gas analyzer based on Fourier logging gas measurement to solve the problems mentioned in the background art.

[0006] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0007] An explosion-proof gas analyzer based on Fourier transform logging gas measurement includes an explosion-proof component, a mounting component, a gas analyzer body, and a dust removal component. The mounting component is disposed inside the explosion-proof component, the gas analyzer body is disposed inside the mounting component, and the dust removal component is disposed below the gas analyzer body. The mounting component is used for disassembling and assembling the gas analyzer body. The gas analyzer body is used for analyzing and detecting logging gas. The dust removal component is used for dust removal treatment of the logging gas to be analyzed. The dust removal component includes a pair of placement seats, on which a dust removal cylinder and a sealing cylinder are provided. An anode tube is connected inside the dust removal cylinder, and the outer wall of the anode tube is fixedly connected to the inner wall of the dust removal cylinder. A circular hole is opened inside the dust removal cylinder at the end away from the sealing cylinder, and a cathode rod is connected inside the circular hole. One end of the cathode rod extends into the interior of the anode tube. The explosion-proof component includes an explosion-proof cabinet, the bottom of which is fixedly connected to the bottom of the pair of placement seats. A power distribution cabinet is connected to the back of the explosion-proof cabinet, and the power distribution cabinet supplies power to the cathode rod and the anode tube.

[0008] Furthermore, at the end of the dust collector away from the sealing cylinder, above the cathode rod, a threaded connection is made to an air inlet threaded connector hose. One end of the air inlet threaded connector hose extends through the explosion-proof cabinet to the outside. At the outer side of the sealing cylinder away from the dust collector, at the threaded connection, an exhaust threaded connector hose is threaded to the outside. One end of the exhaust threaded connector hose is threaded to the air inlet of the gas analyzer body.

[0009] The beneficial effect of adopting the above-mentioned further solution is that, by setting an inlet hose, the air inlet of the external equipment pump is connected to the logging gas pipeline, and the air outlet of the external equipment pump is connected to the inlet hose, the pump pumps the logging gas into the interior of the dust removal assembly through the inlet threaded connector hose. By setting an exhaust threaded connector hose, the gas analyzer body is connected to the dust removal assembly, so that the logging gas after dust removal pretreatment enters the gas pool inside the gas analyzer body through the exhaust hose under the continuous pumping action of the external equipment pump, and performs infrared spectroscopy analysis. The components and working principle of the gas analyzer body are existing publicly available technical means, referring to the infrared spectroscopy analyzer with publication number CN218823914U.

[0010] Furthermore, the sealing cylinder has an annular groove inside at the end near the dust collector cylinder, a sealing ring is connected to one side of the inner wall of the annular groove, and an annular plate is threaded inside the annular groove. One end of the annular plate abuts against one side of the sealing ring, and the annular plate is fixedly connected to one end of the dust collector cylinder at the end away from the sealing ring.

[0011] The beneficial effect of adopting the above-mentioned further solution is that, through the cooperation of the annular groove and the annular plate, the annular groove and the annular plate are connected by threads, which allows the dust collector and the sealing cylinder to be installed and disassembled. By setting a sealing ring, the sealing performance between the sealing cylinder and the dust collector is improved. When the dust collector and the sealing cylinder are removed together from a pair of placement seats, the sealing cylinder is rotated to separate the dust collector and the sealing cylinder, so as to facilitate the cleaning of the dust adhering to the inner wall of the anode tube inside the dust collector.

[0012] Furthermore, an outlet is provided on one side of the back of the explosion-proof cabinet, and a threaded hose for venting is connected inside the outlet. The end of the threaded hose located inside the explosion-proof cabinet is threadedly connected to the outlet of the gas analyzer. A cabinet door is hinged to one side of the front of the explosion-proof cabinet, and an observation window is embedded inside the cabinet door. A pair of pulleys are connected to both sides of the bottom of the explosion-proof cabinet. An installation cabinet is installed on the outside of the explosion-proof cabinet. A compressor, condenser, dryer, expansion valve, and evaporator are installed inside the installation cabinet. A first pipe connects the compressor, condenser, dryer, expansion valve, and evaporator. A second pipe connects the evaporator and the compressor. The compressor's inlet pipe extends through the installation cabinet to the outside. One end of the evaporator passes through the installation cabinet and the explosion-proof cabinet. A temperature sensor is installed on one side of the inner wall of the explosion-proof cabinet above the evaporator.

[0013] The beneficial effect of adopting the above-mentioned further scheme is that, through the coordinated use of the compressor, condenser, dryer, expansion valve, and evaporator, the compressor's intake pipe extends through the mounting cabinet to the outside. The compressor draws in air and compresses it into a high-temperature, high-pressure gas. The high-temperature, high-pressure refrigerant gas enters the condenser, where the refrigerant cools and condenses into a high-temperature, high-pressure liquid. After passing through the condenser, the refrigerant liquid flows through the dryer to remove moisture and impurities from the refrigerant. The dried high-temperature, high-pressure refrigerant liquid expands through the expansion valve into a low-temperature, low-pressure gas-liquid mixture. Refrigerant enters the evaporator, where it absorbs heat from the air inside the cooling chamber and evaporates into a low-temperature, low-pressure gas, creating cold air inside the chamber. A temperature sensor monitors the internal temperature of the explosion-proof cabinet. When the temperature inside the cabinet is high, the compressor, condenser, dryer, expansion valve, and evaporator work together to cool the interior. Rollers facilitate movement of the explosion-proof gas analyzer body. An observation window allows users to monitor the analyzer's operation. A cabinet door allows for easy disassembly and maintenance of the gas analyzer inside the explosion-proof cabinet.

[0014] Furthermore, the mounting assembly includes two pairs of mounting strips, which are respectively installed on both sides of the inner wall of the explosion-proof cabinet. Each pair of mounting strips has a socket inside. On the side away from the inner wall of the explosion-proof cabinet, one pair of mounting strips on the same side has a connecting seat. The connecting seat has a pair of grooves inside, and a block is slidably connected inside each pair of grooves. A rod is connected to one side of each pair of blocks. The rods pass through the connecting seat at the end away from the block and extend into the two sockets respectively. The outer walls of the rods slide in cooperation with the inner walls of the two through holes of the connecting seat.

[0015] The beneficial effect of adopting the above-mentioned further solution is that, through the cooperative use of the socket and the plug rod, when one end of the plug rod is inside the socket, it is easy to connect the connector and a pair of mounting strips, thereby realizing the installation of the gas analyzer body. When the plug rod is separated from the socket, the connector and the mounting strips are separated, thereby facilitating the maintenance, repair and replacement of the gas analyzer body.

[0016] Furthermore, each of the pair of blocks is connected to a spring on the side away from the insertion rod. The two springs are fixedly connected to the inner walls of the two square grooves at the ends away from the blocks. The bottom end of the connecting seat is provided with a sliding groove at the two square grooves. A slider is slidably connected inside the two sliding grooves. The longitudinal section of the two sliders is "I" shaped. The top surface of the two sliders is fixedly connected to the bottom surface of the two blocks. The bottom end of the connecting seat is provided with a toggle bar. The top surface of the toggle bar is fixedly connected to the bottom surface of the two sliders.

[0017] The beneficial effect of adopting the above-mentioned further solution is that by setting a spring, it is easy to realize the automatic reset of the plug rod. When the toggle bar drives the slider and the block to move and pull the plug rod out of the socket, the toggle bar is released, and the spring can make the plug rod automatically reset and insert into the socket, realizing quick installation. Through the coordinated use of the toggle bar, slider, slide, block, spring and plug rod, when the user presses a pair of toggle bars towards the center, a pair of blocks inside the two connecting seats press the spring, so that the spring is compressed and the plug rod is pulled out of the socket.

[0018] Furthermore, the top ends of the pair of connectors are respectively fixedly connected to the bottom sides of the gas analyzer body.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: This explosion-proof gas analyzer based on Fourier logging gas measurement connects the air inlet of the external equipment pump to the logging gas pipeline, connects the exhaust hose to the air inlet of the gas analyzer body, and connects the gas outlet of the gas analyzer to one end of the outlet threaded connector hose. After connecting the outlet of the external equipment pump to the air inlet hose, the pump pumps the logging gas into the dust removal component through the air inlet threaded connector hose. Since the power distribution cabinet supplies power to the anode tube and cathode rod, the cathode plate is negatively charged and the anode plate is positively charged, thus forming a non-uniform electric field. When the logging gas... After entering the gap between the anode tube and the cathode rod through the inlet threaded connector hose, the dust particles become charged at the discharge electrode on the left end of the cathode rod, making them negatively charged. Under the action of the electric field, the negatively charged dust particles move towards the positively charged anode tube plate, releasing their charge and depositing on the inner wall of the anode tube, thus removing dust particles from the logging air. The logging gas after dust removal enters the interior of the sealing cylinder and, under the continuous pumping action of the external equipment pump, enters the gas pool inside the gas analyzer through the exhaust hose for infrared spectroscopy analysis. The gas is then discharged through the outlet threaded connector hose. Attached Figure Description

[0020] Figure 1 A three-dimensional structural schematic diagram of an explosion-proof gas analyzer based on Fourier logging gas measurement provided for this utility model;

[0021] Figure 2 A bottom-view, exploded three-dimensional structural diagram of the mounting assembly of an explosion-proof gas analyzer based on Fourier logging gas measurement provided by this utility model.

[0022] Figure 3 A cross-sectional exploded three-dimensional structural diagram of the connecting seat of an explosion-proof gas analyzer based on Fourier logging gas measurement provided by this utility model.

[0023] Figure 4 An exploded three-dimensional structural diagram of the dust removal component of an explosion-proof gas analyzer based on Fourier logging gas measurement provided by this utility model;

[0024] Figure 5 This is a front cross-sectional structural diagram of the explosion-proof component of an explosion-proof gas analyzer based on Fourier logging gas measurement, which is provided by this utility model.

[0025] In the diagram: 1. Explosion-proof components; 11. Explosion-proof cabinet; 12. Mounting cabinet; 13. Compressor; 14. Condenser; 15. Dryer; 16. Expansion valve; 17. Evaporator; 2. Mounting components; 21. Mounting strip; 22. Insertion hole; 23. Connecting seat; 24. Block; 25. Insert rod; 26. Spring; 27. Slide groove; 28. Slider; 29. ​​Actuating strip; 3. Gas analyzer body; 4. Dust removal components; 41. Placement seat; 42. Dust removal cylinder; 43. Sealing cylinder; 44. Inlet threaded connector hose; 45. Exhaust threaded connector hose; 46. Anode tube; 47. Cathode rod; 48. Annular groove; 49. Annular plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-5This utility model provides a technical solution: an explosion-proof gas analyzer based on Fourier transform logging gas measurement, including an explosion-proof component 1, a mounting component 2, a gas analyzer body 3, and a dust removal component 4. The mounting component 2 is disposed inside the explosion-proof component 1, the gas analyzer body 3 is disposed inside the mounting component 2, and the dust removal component 4 is disposed below the gas analyzer body 3. The mounting component 2 is used for disassembling and assembling the gas analyzer body 3. The gas analyzer body 3 is used for analyzing and detecting logging gas. The dust removal component 4 is used for dust removal treatment of the logging gas to be analyzed. The dust removal component 4 includes a pair of placement seats 41, on which a dust removal cylinder 42 and a sealing cylinder 43 are provided. An anode tube 46 is connected inside the dust removal cylinder 42, and the outer wall of the anode tube 46 is fixedly connected to the inner wall of the dust removal cylinder 42. A circular hole is opened inside the dust removal cylinder 42 at the end away from the sealing cylinder 43. The inside of the circular hole is connected to a cathode rod 47, one end of which extends into the inside of the anode tube 46. The explosion-proof component 1 includes an explosion-proof cabinet 11. The bottom of the explosion-proof cabinet 11 is fixedly connected to the bottom of a pair of placement seats 41. The back of the explosion-proof cabinet 11 is connected to a power distribution cabinet, which supplies power to the cathode rod 47 and the anode tube 46. Since the power distribution cabinet supplies power to the anode tube 46 and the cathode rod 47, the cathode plate is negatively charged and the anode plate is positively charged, thus forming a non-uniform electric field. When the logging gas enters the gap between the anode tube 46 and the cathode rod 47 through the inlet threaded joint hose 44, the dust particles are charged at the discharge electrode at the left end of the cathode rod 47, making the dust particles negatively charged. Under the action of the electric field force, the negatively charged dust particles move towards the positively charged anode tube 46 plate. The dust particles release their charge and are deposited on the inner wall of the anode tube 46, thus completing the removal of dust particles in the logging air.

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1-5This utility model provides a technical solution: At the end of the dust collector 42 furthest from the sealing cylinder 43, above the cathode rod 47, a threaded connection is made to an inlet threaded connector hose 44 at a threaded joint. One end of the inlet threaded connector hose 44 extends through the explosion-proof cabinet 11 to the outside. At the outer side of the sealing cylinder 43 furthest from the dust collector 42, a threaded connection is made to an exhaust threaded connector hose 45 at a threaded joint. One end of the exhaust threaded connector hose 45 is threaded to the air inlet of the gas analyzer body 3. An annular groove 48 is formed inside the sealing cylinder 43 at the end closest to the dust collector 42. A sealing ring is connected to one side of the inner wall of the annular groove 48. An annular plate 49 is threaded inside the annular groove 48. One end of the annular plate 49 abuts against one side of the sealing ring. The end furthest from the sealing ring is fixedly connected to one end of the dust collector 42. An outlet is provided on one side of the back of the explosion-proof cabinet 11, and a threaded hose for venting is connected inside the outlet. The end of the threaded hose located inside the explosion-proof cabinet 11 is threadedly connected to the outlet of the gas analyzer. A cabinet door is hinged to one side of the front of the explosion-proof cabinet 11, and an observation window is embedded inside the door. A pair of pulleys are connected to both sides of the bottom of the explosion-proof cabinet 11. An installation cabinet 12 is installed on the outer side of the explosion-proof cabinet 11. Inside the installation cabinet 12 are a compressor 13, a condenser 14, a dryer 15, an expansion valve 16, and an evaporator 17. A first pipe connects the compressor 13, condenser 14, dryer 15, expansion valve 16, and evaporator 17. A second pipe connects the compressors 13. The intake pipe of the compressor 13 extends to the outside through the mounting cabinet 12. One end of the evaporator 17 passes through the mounting cabinet 12 and the explosion-proof cabinet 11. A temperature sensor is installed on one side of the inner wall of the explosion-proof cabinet 11 above the evaporator 17. The intake threaded connector hose 44 and the exhaust threaded connector hose 45 are separated from the dust removal assembly 4. Then, when the dust removal cylinder 42 and the sealing cylinder 43 are removed together from the pair of placement seats 41, the sealing cylinder 43 is rotated to separate the dust removal cylinder 42 from the sealing cylinder 43, so as to clean the dust adhering to the inner wall of the anode tube 46 inside the dust removal cylinder 42. Through the coordinated use of the compressor 13, condenser 14, dryer 15, expansion valve 16 and evaporator 17, the intake pipe of the compressor 13 passes through the mounting cabinet 12 and the explosion-proof cabinet 11. The refrigerant gas extends from the installation cabinet 12 to the outside. The compressor 13 draws in air and compresses it into a high-temperature, high-pressure gas. This high-temperature, high-pressure refrigerant gas enters the condenser 14, where it cools and condenses into a high-temperature, high-pressure liquid. The refrigerant liquid after passing through the condenser 14 flows through the dryer 15 to remove moisture and impurities. The dried high-temperature, high-pressure refrigerant liquid expands through the expansion valve 16 into a low-temperature, low-pressure gas-liquid mixture. This low-temperature, low-pressure gas-liquid mixture enters the evaporator 17, where it absorbs heat from the air inside the cooling chamber and evaporates into a low-temperature, low-pressure gas, creating cold air inside the cooling chamber. A temperature sensor monitors the internal temperature of the explosion-proof cabinet 11. When the temperature inside the explosion-proof cabinet 11 is high...The compressor 13, condenser 14, dryer 15, expansion valve 16, and evaporator 17 work together to cool the interior of the explosion-proof cabinet 11.

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figures 1-5 This utility model provides a technical solution: the mounting component 2 includes two pairs of mounting strips 21, which are respectively installed on both sides of the inner wall of the explosion-proof cabinet 11. Each pair of mounting strips 21 has an insertion hole 22 inside. On the side away from the inner wall of the explosion-proof cabinet 11, one pair of mounting strips 21 on the same side has a connecting seat 23. The connecting seat 23 has a pair of grooves inside, and a block 24 is slidably connected inside each pair of grooves. One side of each pair of blocks 24 is connected to a rod 25. The ends of each pair of rods 25 away from the blocks 24 pass through the connecting seat 23 and extend into the two insertion holes 22. The outer walls of each pair of rods 25 slidably engage with the inner walls of the two through holes of the connecting seat 23. Each pair of blocks 24 is connected to a spring 26 on the side away from the rods 25. The ends of the two springs 26 away from the blocks 24 are fixedly connected to the inner walls of the two grooves. The bottom end of the connecting seat 23 is located at the two grooves. The instrument has two sliding grooves 27, each with a slider 28 slidably connected inside. The longitudinal section of each slider 28 is "I" shaped. The top surfaces of the two sliders 28 are fixedly connected to the bottom surfaces of two blocks 24. The bottom end of the connecting seat 23 is provided with a toggle bar 29, the top surface of which is fixedly connected to the bottom surfaces of the two sliders 28. The top ends of the pair of connecting seats 23 are fixedly connected to the bottom sides of the gas analyzer body 3. When maintenance of the gas analyzer body 3 is required, the user presses the pair of toggle bars 29 towards the center. This causes one pair of blocks 24 inside the two connecting seats 23 to compress the spring 26, thus compressing the spring 26 and pulling the insertion rod 25 out of the insertion hole 22. This separates the connecting seat 23 from the mounting strip 21, and the connecting seat 23 is fixedly connected to the gas analyzer body 3. This allows the gas analyzer body 3 to be removed from the two pairs of mounting strips 21 for maintenance.

[0032] Specifically, the working principle of this explosion-proof gas analyzer based on Fourier transform logging gas measurement is as follows: During use, the air inlet of the external equipment pump is connected to the logging gas pipeline, the exhaust hose is connected to the air inlet of the gas analyzer body 3, and the air outlet of the gas analyzer is connected to one end of the outlet threaded connector hose. The end of the outlet threaded connector hose located outside the explosion-proof cabinet 11 is connected to the logging gas discharge pipeline. After connecting the air outlet of the external equipment pump to the air inlet hose, the pump pumps the logging gas through the air inlet threaded connector hose 44 into the dust removal assembly 4. Since the power distribution cabinet supplies power to the anode tube 46 and the cathode rod 47, the cathode plate becomes negatively charged and the anode plate becomes positively charged, thus creating an uneven distribution. A uniform electric field is applied. When the logging gas enters the gap between the anode tube 46 and the cathode rod 47 through the inlet threaded connector hose 44, the dust particles become charged at the discharge electrode on the left end of the cathode rod 47, making the dust particles negatively charged. Under the action of the electric field force, the negatively charged dust particles move towards the positively charged anode tube 46 plate. The dust particles release their charge and are deposited on the inner wall of the anode tube 46, thus removing the dust particles from the logging air. The logging gas after dust removal enters the interior of the sealing cylinder 43. Under the continuous pumping action of the external equipment pump, it enters the gas pool inside the gas analyzer body 3 through the exhaust hose for infrared spectroscopy analysis. Then the gas is discharged through the outlet threaded connector hose.

Claims

1. An explosion-proof gas analyzer based on Fourier transform logging gas measurement, characterized in that, The system includes an explosion-proof component (1), a mounting component (2), a gas analyzer body (3), and a dust removal component (4). The mounting component (2) is located inside the explosion-proof component (1), the gas analyzer body (3) is located inside the mounting component (2), and the dust removal component (4) is located below the gas analyzer body (3). The mounting component (2) is used to assemble and disassemble the gas analyzer body (3). The gas analyzer body (3) is used to analyze and detect logging gas. The dust removal component (4) is used to remove dust from the logging gas to be analyzed. The dust removal component (4) includes a pair of mounting bases. (41) A pair of placement seats (41) are provided with a dust removal cylinder (42) and a sealing cylinder (43). An anode tube (46) is connected inside the dust removal cylinder (42). The outer wall of the anode tube (46) is fixedly connected to the inner wall of the dust removal cylinder (42). A round hole is opened inside the dust removal cylinder (42) at one end away from the sealing cylinder (43). A cathode rod (47) is connected inside the round hole. One end of the cathode rod (47) extends into the interior of the anode tube (46). The explosion-proof assembly (1) includes an explosion-proof cabinet (11). The bottom of the explosion-proof cabinet (11) is fixedly connected to the bottom of the pair of placement seats (41).

2. The explosion-proof gas analyzer based on Fourier logging gas measurement according to claim 1, characterized in that, The end of the dust collector (42) away from the sealing cylinder (43) is threaded with an air inlet threaded connector hose (44) above the cathode rod (47) at the threaded connector. One end of the air inlet threaded connector hose (44) extends through the explosion-proof cabinet (11) to the outside. The end of the sealing cylinder (43) away from the dust collector (42) is threaded with an exhaust threaded connector hose (45) at the threaded connector. One end of the exhaust threaded connector hose (45) is threaded with the air inlet of the gas analyzer body (3).

3. The explosion-proof gas analyzer based on Fourier logging gas measurement according to claim 2, characterized in that, The sealing cylinder (43) has an annular groove (48) inside one end near the dust collector cylinder (42). A sealing ring is connected to one side of the inner wall of the annular groove (48). A ring plate (49) is threaded inside the annular groove (48). One end of the ring plate (49) abuts against one side of the sealing ring. The end of the ring plate (49) away from the sealing ring is fixedly connected to one end of the dust collector cylinder (42).

4. The explosion-proof gas analyzer based on Fourier logging gas measurement according to claim 1, characterized in that, The explosion-proof cabinet (11) has an outlet on one side of its back. A threaded hose is connected inside the outlet, and one end of the threaded hose inside the cabinet (11) is threaded to the outlet of a gas analyzer. A cabinet door is hinged to one side of the front of the explosion-proof cabinet (11), and an observation window is embedded inside the door. A pair of pulleys are connected to both sides of the bottom of the explosion-proof cabinet (11). An installation cabinet (12) is installed on the outer side of the explosion-proof cabinet (11), and an instrument is installed inside the installation cabinet (12). The compressor (13), condenser (14), dryer (15), expansion valve (16) and evaporator (17) are connected by a first pipe, and the evaporator (17) is connected by a second pipe. The air inlet pipe of the compressor (13) extends to the outside through the mounting cabinet (12), and one end of the evaporator (17) passes through the mounting cabinet (12) and the explosion-proof cabinet (11).

5. The explosion-proof gas analyzer based on Fourier logging gas measurement according to claim 1, characterized in that, The mounting assembly (2) includes two pairs of mounting strips (21). The two pairs of mounting strips (21) are respectively installed on both sides of the inner wall of the explosion-proof cabinet (11). The interior of each pair of mounting strips (21) is provided with a socket (22). On the side away from the inner wall of the explosion-proof cabinet (11), a pair of mounting strips (21) on the same side is provided with a connecting seat (23). The interior of the connecting seat (23) is provided with a pair of grooves. A block (24) is slidably connected to the interior of each pair of grooves. A rod (25) is connected to one side of each pair of blocks (24). The end of each pair of rods (25) away from the block (24) passes through the connecting seat (23) and extends into the interior of the two sockets (22). The outer wall of each pair of rods (25) is slidably engaged with the inner wall of the two through holes of the connecting seat (23).

6. The explosion-proof gas analyzer based on Fourier logging gas measurement according to claim 5, characterized in that, A pair of blocks (24) are each connected to a spring (26) on the side away from the plug (25). The two springs (26) are respectively fixedly connected to the inner walls of the two square grooves at the ends away from the blocks (24). The bottom end of the connecting seat (23) is provided with a sliding groove (27) at the two square grooves. The sliding grooves (27) are slidably connected with sliders (28). The longitudinal section of the two sliders (28) is "I". The top surface of the two sliders (28) is fixedly connected to the bottom surface of the two blocks (24). The bottom end of the connecting seat (23) is provided with a toggle bar (29). The top surface of the toggle bar (29) is fixedly connected to the bottom surface of the two sliders (28).

7. The explosion-proof gas analyzer based on Fourier logging gas measurement according to claim 6, characterized in that, The top ends of the pair of connecting seats (23) are fixedly connected to the bottom sides of the gas analyzer body (3).

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