Infrared gas light hydrocarbon analyzer for well logging
By designing an infrared gas light hydrocarbon analyzer for well recording, the problem of changes in gas components in the laboratory is solved, and accurate analysis of gas components and stable temperature control are achieved.
Patent Information
- Application Number
- CN202510545740.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-28
- Publication Date
- 2025-06-24
AI Technical Summary
When analyzing gas in the laboratory, the reaction of components in the gas changes due to environmental differences in the analyzer, which affects the accuracy of the analysis results.
An infrared gas light hydrocarbon analyzer for well recording is designed, including a shell, gas chamber, docking hole, gas cylinder, flow guide pipe fitting and temperature adjustment mechanism. Through the protection docking mechanism and temperature adjustment mechanism, the temperature of the gas cylinder and gas chamber is ensured to be consistent and avoid component reaction changes.
It effectively avoids changes in gas components due to temperature differences during transportation and analysis, and improves the accuracy and reliability of the analysis results.
Smart Images
Figure CN120195103A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of gas analysis, and in particular, to an infrared gas light hydrocarbon analyzer for mud logging. Background Art
[0002] During the process of oil drilling, it is necessary to timely observe the information of the underground formation. Detecting the downhole gas can help identify oil and gas layers, evaluate the oil and gas content, and prevent accidents such as blowouts. This process is called mud logging. During measurement, drilling fluid can be quantitatively extracted at the drilling outlet, and then the sample gas can be obtained by heating and stirring the drilling fluid to degas it. There are various components of light hydrocarbons in the sample gas. After filtering and purifying the sample gas, the gas components are analyzed. Traditional gas detection methods include catalytic combustion method, thermal conductivity detection method, etc. These methods have risks such as low sensitivity, incomplete measurement components, and easy poisoning. Now, gas analysis can be carried out by an infrared analyzer through the infrared absorption method. The infrared analyzer has the advantages of high sensitivity, fast analysis speed, high safety, etc., and has become a dominant detection instrument.
[0003] During mud logging, in most cases, the processed gas can be directly analyzed after being introduced into the infrared analyzer on-site, and the mining plan can be adjusted in real time. However, when analyzing complex components in the gas and calibrating and archiving the data, the gas sample needs to be taken to the laboratory by gas cylinder for further analysis and detection. However, there are various components in the sample gas. When affected by partial shaking, pressure, and temperature, various light hydrocarbon components will react, resulting in changes in the component content. This requires special material gas cylinders for transportation, and at the same time, the transportation temperature and stability need to be maintained. However, after connecting the gas cylinder to the infrared analyzer in the laboratory, there may still be partial changes in the components due to the partial difference in temperature between the analyzer and the gas cylinder. Summary of the Invention
[0004] The present invention provides an infrared gas light hydrocarbon analyzer for mud logging to solve the problem in the prior art that when analyzing gas in the laboratory, sometimes the components in the gas react and change due to environmental differences in the analyzer.
[0005] The technical solution of the present invention is as follows: An infrared gas light hydrocarbon analyzer for logging, comprising a shell, a gas chamber is arranged in the shell, and also comprises a docking hole, a gas cylinder, a flow guide pipe and a temperature regulating mechanism, the docking hole is opened above the shell, a docking pipe 1 is fixedly connected to the gas chamber, the docking pipe 1 is arranged in the center of the docking hole, the gas cylinder is detachably provided with a protective docking mechanism, the gas cylinder is detachably connected to the docking pipe 1, the protective docking mechanism is sleeved on the gas cylinder, the protective docking mechanism is used to protect the gas cylinder, and is detachably connected to the shell, the flow guide pipe is rotatably connected to the inside of the shell, and the temperature regulating mechanism is provided. The butt joint pipe runs through the center of the guide pipe, the guide pipe and the protective docking mechanism are detachably connected, openings connected to the docking holes are provided on both sides of the guide pipe, a temperature regulating mechanism is fixedly connected to the inside of the shell, an air conditioner is fixedly installed on the shell, the upper end of the temperature regulating mechanism corresponds to the guide pipe, the temperature regulating mechanism is used to regulate the temperature inside the shell and the inside of the protective docking mechanism, and covers are detachably provided on the vent hole and the vent cover plate, and when not connected, the cover plate is used for sealing to reduce gas flow.
[0006] The protective docking mechanism comprises a rectangular shell, a partition fixing strip, a second docking pipe and a ventilation cover plate, the rectangular shell being set as a cuboid, the gas cylinder being detachably installed in the rectangular shell, a heat preservation chamber being reserved between the rectangular shell and the gas cylinder, the partition fixing strip being fixedly connected in the rectangular shell, a rubber strip being fixedly connected to the partition fixing strip at a position in contact with the gas cylinder, the partition fixing strip dividing the heat preservation chamber into two parts which are interconnected, the second docking pipe being fixedly connected to the gas cylinder, the second docking pipe being detachably connected to the first docking pipe, the ventilation cover plate being fixedly connected to the rectangular shell, the second docking pipe passing through the center of the ventilation cover plate, the ventilation cover plate being threadedly connected to the docking hole, ventilation holes being provided on the ventilation cover plate at positions on both sides of the partition fixing strip, the two ventilation holes being respectively connected to the two parts of the heat preservation chamber, and a turning plate 1 being fixedly provided on the side of the ventilation cover plate away from the gas cylinder.
[0007] The shell body is provided with two arc grooves, the two arc grooves are arranged around the docking hole, a limiting hole is arranged inside one end of the arc groove, two limiting rods are arranged on the rectangular shell, a spring is arranged between the limiting rod and the rectangular shell, and the limiting rod can slide into the arc groove and the limiting hole.
[0008] An L-shaped groove is provided on the end of the docking tube 1 away from the air chamber, and a magnetic sleeve is slidably connected to the end of the docking tube 2 away from the gas cylinder. The magnetic sleeve can be slidably mounted on the docking tube 1, and the magnetic sleeve is provided with convex teeth corresponding to the L-shaped groove. When the magnetic sleeve is slidably mounted on the docking tube 1, it is located between the guide pipe and the ventilation cover.
[0009] The guide pipe is provided with a second dial plate, an air collecting port and a diverter plate. The second dial plate is fixedly connected to the center of the guide pipe. The second dial plate divides the internal cavity of the guide pipe into two parts. The second dial plate can contact the first dial plate. Both sides of the guide pipe are provided with air collecting ports. The two air collecting ports are respectively connected to the two cavities inside the guide pipe, and the two ends of the diverter plate are respectively fixedly connected to the two air collecting ports.
[0010] The temperature regulating mechanism includes an exhaust pipe and an intake pipe, which are arranged on the upper side of the shell, the exhaust pipe is connected with the air outlet of the air conditioner, the upper end of the exhaust pipe is aligned with the guide pipe, and is arranged on the lower side of the shell, the intake pipe is connected with the air inlet of the air conditioner, and the lower end of the intake pipe is arranged on both sides of the air chamber, when the ventilation cover plate is not docked with the docking hole, the diverter plate is aligned with the upper end of the exhaust pipe, and when the first dial plate drives the second dial plate to rotate, the air collecting port is aligned with the upper end of the exhaust pipe.
[0011] The working principle and beneficial effects of the present invention are: 1. In the present invention, a rectangular shell and a partition fixing strip are provided, the gas cylinder is fixed by the partition fixing strip, and the heat preservation cavity is divided into two zones, so that the airflow can flow in the heat preservation cavity and adjust the temperature around the gas cylinder, and at the same time, the dead zone in the heat preservation cavity where the gas cannot flow is avoided, and the temperature of the gas chamber and the gas cylinder can be fully made the same; 2. In the present invention, by providing a rectangular shell and a temperature regulating mechanism, the airflow driven by the air conditioner circulates in the shell, fully regulating the temperature in the shell, and at the same time, the airflow can enter the guide pipe, and the guide pipe can circulate the airflow in the heat preservation chamber; 3. In the present invention, by providing a protective docking mechanism, the gas cylinder can be protected and gas circulation can be performed in the gas cylinder. By providing a temperature regulating mechanism, the air flow can be circulated in the shell to maintain a uniform temperature. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic cross-sectional structure diagram of the interior of the shell in the present invention; Figure 3 It is a structural schematic diagram of the protective docking mechanism in the present invention; Figure 4 It is a schematic diagram of the internal cross-sectional structure of the rectangular housing in the present invention; Figure 5 It is a partial structural schematic diagram of the ventilation cover plate and the limiting rod in the present invention; Figure 6 It is a schematic diagram of the local structure of the docking hole and the docking pipe in the present invention; Figure 7 It is a schematic diagram of the partial internal cross-sectional structure of the matching of the flow guide pipe and the docking hole in the present invention; Figure 8 It is a schematic diagram of the partial internal cross-sectional structure of the exhaust pipe and the intake pipe in the present invention.
[0014] In the figure: 1. Shell; 2. Air chamber; 3. Docking hole; 4. Docking pipe 1; 5. Gas cylinder; 6. Guide pipe; 7. Rectangular shell; 8. Insulation chamber; 9. Partition fixing strip; 10. Docking pipe 2; 11. Ventilation cover; 12. Ventilation hole; 13. Turn plate 1; 14. Arc groove; 15. Limit hole; 16. Limit rod; 17. L-shaped slide groove; 18. Magnetic sleeve; 19. Turn plate 2; 20. Gas collecting port; 21. Diverter plate; 22. Exhaust pipe; 23. Intake pipe; 24. Air conditioner. DETAILED DESCRIPTION
[0015] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0016] like Figures 1 to 8As shown, this embodiment proposes an infrared gas light hydrocarbon analyzer for logging, including a shell 1, a gas chamber 2 is arranged in the shell 1, and also includes a docking hole 3, a gas cylinder 5, a guide pipe 6 and a temperature adjustment mechanism. The docking hole 3 is opened above the shell 1, and a docking pipe 4 is fixedly connected to the gas chamber 2, and the docking pipe 4 is arranged in the center of the docking hole 3. The gas cylinder 5 is detachably provided with a protective docking mechanism, and the gas cylinder 5 is detachably connected to the docking pipe 4. The protective docking mechanism is sleeved on the gas cylinder 5. The protective docking mechanism is used to protect the gas cylinder 5 and is detachably connected to the shell 1. The guide pipe 6 is rotatably connected to the inside of the shell 1, and the docking pipe 4 passes through the center of the guide pipe 6. The guide pipe 6 is detachably connected to the protective docking mechanism, and the guide pipe 6 has docking holes on both sides. The opening connected to the hole 3, the temperature regulating mechanism is fixedly connected to the inside of the shell 1, and the air conditioner 24 is fixedly installed on the shell 1. The upper end of the temperature regulating mechanism corresponds to the guide pipe 6. The temperature regulating mechanism is used to adjust the temperature inside the shell 1 and the inside of the protective docking mechanism. The gas cylinder 5 is protected by the protective docking mechanism, and at the same time, it plays a role of isolating temperature and heat preservation. The connection between the inside of the shell 1 and the insulation chamber 8 is realized by docking the protective docking mechanism with the docking hole 3. Before the connection, the inside of the shell 1 is preheated and adjusted to the required temperature before docking. By circulating gas in the insulation chamber 8, the temperature of the gas cylinder 5 is the same as that of the gas chamber 2, so that there will be no temperature difference during the gas transition, and the reaction change of the light hydrocarbon components in the gas can be avoided as much as possible.
[0017] like Figures 1 to 5As shown, the protective docking mechanism includes a rectangular shell 7, a partition fixing strip 9, a docking pipe 2 10 and a ventilation cover 11. The rectangular shell 7 is set as a cuboid. The gas cylinder 5 can be detachably installed in the rectangular shell 7. An insulation cavity 8 is left between the rectangular shell 7 and the gas cylinder 5. The partition fixing strip 9 is fixedly connected to the rectangular shell 7. A rubber strip is fixedly connected to the partition fixing strip 9 at a position in contact with the gas cylinder 5. The partition fixing strip 9 divides the insulation cavity 8 into two parts that are interconnected. The docking pipe 2 10 is fixedly connected to the gas cylinder 5. The docking pipe 2 10 is detachably connected to the docking pipe 1 4. The ventilation cover plate 11 is fixedly connected to the rectangular shell 7, and the butt pipe 10 passes through the center of the ventilation cover plate 11. The ventilation cover plate 11 is threadedly connected to the butt hole 3. Ventilation holes 12 are opened on the ventilation cover plate 11 at both sides of the partition fixing strip 9. The two ventilation holes 12 are respectively connected to the two parts of the insulation chamber 8. A rotating plate 13 is fixedly set on the side of the ventilation cover plate 11 away from the gas cylinder 5. By setting the rectangular shell 7, it is convenient to transport multiple gas cylinders 5, avoid rolling of the gas cylinders 5, reduce shaking, and keep away from the ventilation cover plate 11 in the rectangular shell 7. A bracket perpendicular to the partition fixing strip 9 is provided on one side, and a rubber strip is also provided on the bracket to support the gas cylinder 5. The two sides of the partition fixing strip 9 are connected through the bracket. The support of the gas cylinder 5 by the rubber strip can reduce the shock of the gas cylinder 5. When transporting, the gas cylinder 5 is placed in a transportation device with a suitable temperature. When the gas cylinder 5 is transported to the laboratory, the heat preservation chamber 8 can also extend the heat preservation effect of the gas cylinder 5. At the same time, through the two connected half chambers, the air flow can circulate in the heat preservation chamber 8 to adjust the temperature of the gas cylinder 5 to avoid the temperature of the gas cylinder 5. There is a temperature difference with the air chamber 2. When there is a temperature difference during transportation, the temperature can also be corrected. The two vent holes 12 on the ventilation cover 11 are arranged on both sides of the dial plate 13. The dial plate 13 and the dial plate 2 19 divide the area between the ventilation cover 11 and the guide tube 6 into two parts, so that the airflow can enter one side of the insulation chamber 8 through the guide tube 6 and one vent hole 12. After the airflow surrounds the gas cylinder 5, it enters the other side of the guide tube 6 through the other vent hole 12 and leaves the guide tube 6, thereby realizing the airflow circulation in the insulation chamber 8.
[0018] like Figures 6 to 7As shown, the housing 1 is provided with two arc grooves 14, the two arc grooves 14 are arranged around the docking hole 3, a limiting hole 15 is arranged inside one end of the arc groove 14, two limiting rods 16 are arranged on the rectangular housing 7, a spring is arranged between the limiting rod 16 and the rectangular housing 7, the limiting rod 16 can slide into the arc groove 14 and the limiting hole 15, the two arc grooves 14 are arranged as 90 degree arcs, the two arc grooves 14 surround the limiting hole 15, and the rotation angle is 180 degrees to form a rectangular housing. When docking 7, the threaded section on the ventilation cover 11 is connected with the ventilation hole 12. At this time, the limiting rod 16 extends into the arc groove 14. At this time, the spring is compressed and shortened, and the rectangular shell 7 is rotated to make the limiting rod 16 slide in the arc groove 14 to the limiting hole 15. The spring pushes the limiting rod 16 to extend into the limiting hole 15. At this time, the docking tube 1 4 is docked with the docking tube 2 10, the ventilation cover 11 is docked with the limiting hole 15, and the limiting rod 16 makes the rectangular shell 7 unable to be reversed, so as to be limited and fixed.
[0019] like Figures 6 to 7 As shown, an L-shaped groove 17 is provided on the end of the butt joint pipe 14 away from the air chamber 2, and a magnetic sleeve 18 is slidably connected to the end of the butt joint pipe 10 away from the gas cylinder 5. The magnetic sleeve 18 can be slidably sleeved on the butt joint pipe 14, and a convex tooth corresponding to the L-shaped groove 17 is provided on the magnetic sleeve 18. When the magnetic sleeve 18 is slidably sleeved on the butt joint pipe 14, it is located between the guide pipe 6 and the ventilation cover plate 11, and a magnetic member corresponding to the magnetic sleeve 18 is provided on the butt joint pipe 14. When the ventilation cover 11 is docked with the limiting hole 15, the magnetic sleeve 18 is slidably mounted on the docking pipe 1 4 under the action of magnetic force. At this time, the convex teeth on the magnetic sleeve 18 slide into the L-shaped slide groove 17. The sliding sleeve of the magnetic force can make the gas cylinder 5 not need to move a long distance to the docking pipe 1 4 to achieve a relatively tight connection, simplifying the docking process. At this time, rotating the rectangular shell 7 can make the convex teeth slide in the L-shaped slide groove 17 to complete the docking of the docking pipe 1 4 and the docking pipe 2 10.
[0020] like Figure 7As shown, the guide pipe 6 is provided with a toggle plate 2 19, a gas collecting port 20 and a diverter plate 21, the toggle plate 2 19 is fixedly connected to the center of the guide pipe 6, the toggle plate 2 19 divides the internal cavity of the guide pipe 6 into two parts, the toggle plate 2 19 can contact with the toggle plate 1 13, both sides of the guide pipe 6 are provided with gas collecting ports 20, the gas collecting ports 20 are arranged in a trumpet shape, which is convenient for gas to enter and discharge, the two gas collecting ports 20 are respectively connected to the two cavities inside the guide pipe 6, and the two ends of the diverter plate 21 are respectively fixedly connected to the two gas collecting ports 20, when the ventilation cover 11 is docked with the limiting hole 15, the toggle plate 13 contacts with the toggle plate 2 19, at this time, the rectangular shell 7 is rotated, and the toggle plate 1 13 drives the dial plate 2 19 to rotate, aligning the gas collecting port 20 with the exhaust pipe 22. The airflow discharged from the exhaust pipe 22 can enter the gas collecting port 20 to promote the flow of gas in the insulation chamber 8 and be discharged through another gas collecting port 20. Before the guide pipe 6 is rotated, the diverter plate 21 is aligned with the exhaust pipe 22. The airflow impacts the diverter plate 21 and then diverts to both sides to avoid the turbulence formed during the gas flow affecting the gas circulation. When the rectangular shell 7 is not connected to the shell 1, the air conditioner 24 adjusts the temperature inside the shell 1, and the airflow in the exhaust pipe 22 is blown to the diverter plate 21 for diversion to avoid turbulence in the guide pipe 6 that affects the gas circulation efficiency and function.
[0021] like Figure 2 and Figure 8 As shown, the temperature regulating mechanism includes an exhaust pipe 22 and an intake pipe 23, the exhaust pipe 22 is arranged on the upper side of the shell 1, the exhaust pipe 22 is connected to the air outlet of the air conditioner 24, the upper end of the exhaust pipe 22 is aligned with the guide pipe 6, the intake pipe 23 is arranged on the lower side of the shell 1, the intake pipe 23 is connected to the air inlet of the air conditioner 24, the air conditioner 24 used in this embodiment is an electrical cabinet air conditioner, and a heat exchange port for exchanging heat with the outside is arranged on the side of the air conditioner away from the shell 1, and the air inlet and outlet on the air conditioner 24 are connected to the temperature regulating mechanism, so that the gas in the shell will not be exchanged with the outside air through the air conditioner 24, the lower end of the intake pipe 23 is arranged on both sides of the air chamber 2, and when the ventilation cover plate 11 is not docked with the docking hole 3, the diverter plate 21 and The upper ends of the exhaust pipe 22 are aligned. When the dial plate 13 drives the dial plate 2 19 to rotate, the gas collecting port 20 is aligned with the upper end of the exhaust pipe 22. The airflow from the air outlet of the air conditioner 24 is blown out above the shell 1, and after circulation, the gas passes through the intake pipe 23 at the bottom of the shell 1 so that the gas will flow into the air conditioner 24. After passing through the air chamber 2, the gas surrounds the gas cylinder 5 in the rectangular shell 7. Thereafter, the gas moves around the air chamber 2 to the bottom of the shell and enters the intake pipe 23, realizing the internal circulation of the gas and reducing the influence of the external temperature. Temperature sensors can be set inside the shell and inside the air chamber for temperature detection. When the temperature change is detected, the temperature of the gas circulating in the intake pipe 23 and the exhaust pipe 22 can be adjusted by the air conditioner 24.
[0022] In this embodiment, after the light hydrocarbon gas is separated at the oil well, it is stored in the gas cylinder 5. During transportation, the gas cylinder 5 and the rectangular housing 7 are insulated. After the gas cylinder 5 is transported to the laboratory, the air conditioner 24 is started to adjust the temperature in the housing 1. The gas circulates in the housing 1 through the exhaust pipe 22 and the suction pipe 23. The gas at the exhaust port is blown to the shunt plate 21. The covers on the docking hole 3 and the diversion pipe fitting 6 are removed, and the docking hole 3 is docked with the diversion pipe fitting 6. At this time, the limiting rod 16 extends into the arc-shaped groove 14. Then, the rectangular housing 7 is rotated, and the limiting rod 16 slides in the arc-shaped groove 14. When the limiting rod 16 slides to the limiting hole 15, the spring pushes the limiting rod 16 to extend into the limiting hole 15. At this time, the rectangular housing 7 cannot rotate. At the same time, the magnetic sleeve 18 slides and sleeves on the first docking pipe 4 under the action of magnetic force. As the rectangular housing 7 rotates, the convex teeth on the magnetic sleeve 18 rotate and dock in the L-shaped sliding groove. When the docking hole 3 and the diversion pipe fitting 6 are docked, the first turning plate 13 contacts the second turning plate 19 and drives the diversion pipe fitting 6 to rotate during rotation, so that the gas collecting port 20 is aligned with the upper end of the exhaust pipe 22, allowing the air flow to enter the heat preservation cavity 8 for circulation, making the temperatures of the gas cylinder 5 and the gas chamber 2 gradually tend to be the same. Then, the light hydrocarbon gas in the gas cylinder 5 is introduced into the gas chamber 2 for detection.
[0023] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.
Claims
1. An infrared gas light hydrocarbon analyzer for logging, comprising a housing (1), wherein an air chamber (2) is provided in the housing (1), characterized in that: Also includes: A docking hole (3) is provided above the shell (1); a docking pipe (4) is fixedly connected to the air chamber (2); the docking pipe (4) is arranged at the center of the docking hole (3); A gas cylinder (5) is detachably provided with a protective docking mechanism, the gas cylinder (5) is detachably connected to the docking pipe (4), the protective docking mechanism is sleeved on the gas cylinder (5), the protective docking mechanism is used to protect the gas cylinder (5), and is detachably connected to the housing (1); a flow guide pipe (6) rotatably connected inside the shell (1); the butt joint pipe (4) passes through the center of the flow guide pipe (6); the flow guide pipe (6) is detachably connected to the protective butt joint mechanism; and openings communicating with the butt joint hole (3) are provided on both sides of the flow guide pipe (6); A temperature regulating mechanism is fixedly connected to the inside of the shell (1); an air conditioner (24) is fixedly mounted on the shell (1); an upper end of the temperature regulating mechanism corresponds to the flow guide pipe (6); and the temperature regulating mechanism is used to regulate the temperature inside the shell (1) and inside the protective docking mechanism.
2. The infrared gas light hydrocarbon analyzer for logging according to claim 1, characterized in that: The protective docking mechanism comprises: A rectangular shell (7) is arranged in the form of a cuboid, the gas cylinder (5) is detachably mounted in the rectangular shell (7), and a heat preservation cavity (8) is left between the rectangular shell (7) and the gas cylinder (5); A partition fixing strip (9) is fixedly connected in the rectangular housing (7), a rubber strip being fixedly connected to the partition fixing strip (9) at a position in contact with the gas cylinder (5), and the partition fixing strip (9) divides the heat preservation chamber (8) into two parts that are interconnected; The second butt joint pipe (10) is fixedly connected to the gas cylinder (5), and the second butt joint pipe (10) is detachably connected to the first butt joint pipe (4); The ventilation cover plate (11) is fixedly connected to the rectangular housing (7), the second butt joint pipe (10) passes through the center of the ventilation cover plate (11), and the ventilation cover plate (11) is threadedly connected to the butt joint hole (3).
3. The infrared gas light hydrocarbon analyzer for logging according to claim 2, characterized in that: The ventilation cover plate (11) is provided with ventilation holes (12) at positions on both sides of the partition fixing strip (9), and the two ventilation holes (12) are respectively connected to the two parts of the heat preservation chamber (8), and a rotating plate (13) is fixedly provided on the side of the ventilation cover plate (11) away from the gas cylinder (5).
4. The infrared gas light hydrocarbon analyzer for logging according to claim 3, characterized in that: The housing (1) is provided with two arc-shaped grooves (14), the two arc-shaped grooves (14) are arranged around the docking hole (3), and a limiting hole (15) is provided inside one end of the arc-shaped groove (14).
5. The infrared gas light hydrocarbon analyzer for logging according to claim 4, characterized in that: Two limiting rods (16) are arranged on the rectangular housing (7), a spring is arranged between the limiting rod (16) and the rectangular housing (7), and the limiting rod (16) can slide into the arc groove (14) and the limiting hole (15).
6. The infrared gas light hydrocarbon analyzer for logging according to claim 5, characterized in that: An L-shaped slide groove (17) is provided on the end of the butt joint pipe (4) away from the gas chamber (2), and a magnetic sleeve (18) is slidably connected to the end of the butt joint pipe (10) away from the gas cylinder (5). The magnetic sleeve (18) can be slidably mounted on the butt joint pipe (4), and the magnetic sleeve (18) is provided with a convex tooth corresponding to the L-shaped slide groove (17).
7. The infrared gas light hydrocarbon analyzer for logging according to claim 6, characterized in that: When the magnetic sleeve (18) is slidably mounted on the butt joint pipe (4), it is located between the flow guide pipe (6) and the ventilation cover plate (11).
8. The infrared gas light hydrocarbon analyzer for logging according to claim 7, characterized in that: The flow guide pipe (6) is provided with: A second rotating plate (19) is fixedly connected to the center of the guide tube (6), the second rotating plate (19) divides the internal cavity of the guide tube (6) into two parts, and the second rotating plate (19) can contact the first rotating plate (13); Gas collecting ports (20), with gas collecting ports (20) being provided on both sides of the flow guiding pipe (6), and the two gas collecting ports (20) being respectively connected to two cavities inside the flow guiding pipe (6); The splitter plate (21) has two ends fixedly connected to the two gas collecting ports (20) respectively.
9. The infrared gas light hydrocarbon analyzer for logging according to claim 8, characterized in that: The temperature regulating mechanism comprises: An exhaust pipe (22) is arranged on the upper side of the shell (1), the exhaust pipe (22) is connected to the air outlet of the air conditioner (24), and the upper end of the exhaust pipe (22) is aligned with the guide pipe (6); An air intake pipe (23) is arranged on the lower side of the shell (1), the air intake pipe (23) is connected to the air inlet of the air conditioner (24), and the lower end of the air intake pipe (23) is arranged on both sides of the air chamber (2).
10. The infrared gas light hydrocarbon analyzer for logging according to claim 9, characterized in that: When the ventilation cover plate (11) is not docked with the docking hole (3), the diverter plate (21) is aligned with the upper end of the exhaust pipe (22); when the first rotating plate (13) drives the second rotating plate (19) to rotate, the air collecting port (20) is aligned with the upper end of the exhaust pipe (22).