A 2-fluoro-6-aminotoluene compound detection device

Abstract

The application discloses a 2-fluoro-6-aminotoluene compound detection device, solves the problem that high-viscosity or low-volatility samples are easy to form liquid drops or films in the gasification pipe group and are adsorbed on the inner wall of the gasification pipe group when the gasification pipe group and the heating device heat the samples, and comprises a detection main body, a heating and gasification mechanism and a linkage adjusting mechanism, wherein the detection main body comprises a sample inlet chamber, a gasification chamber, a chromatographic column chamber and a detector, the heating and gasification mechanism comprises an adjustable preheating part, a uniform heating resistance wire and a heat preservation resistance wire, and the linkage adjusting mechanism comprises a linkage motor, a synchronous driving part fixedly connected with the output end of the linkage motor, a linkage limiting part and a preheating adjusting part connected with the synchronous driving part. The gasification chamber, the synchronous driving part and the linkage limiting part are arranged in the application, the synchronous driving part and the linkage limiting part are cooperatively matched to synchronously drive the gasification chamber to move up and down and reciprocatingly rotate, and the sample gasification speed and uniformity are ensured.

Description

Technical Field

[0001] This invention belongs to the field of compound intermediate detection technology, specifically relating to a detection device for 2-fluoro-6-aminotoluene compounds. Background Technology

[0002] 2-Fluoro-6-aminotoluene is mainly used as a pharmaceutical synthesis intermediate. For example, it can be used to prepare fluorinated indole compounds. These indole series products have various important biological activities. 2-Fluoro-6-aminotoluene compounds mainly include two organic compounds: 2-amino-6-fluorobenzoic acid and 6-amino-2-fluorotoluene. In the production process of 2-fluoro-6-aminotoluene compounds, it is necessary to detect and analyze the compounds to facilitate accurate determination of their structure and purity.

[0003] Methods for detecting 2-fluoro-6-aminotoluene mainly include ultra-high performance liquid chromatography (UPLC), gas chromatography (GC), and mass spectrometry (MS). These analytical methods can be used to accurately determine the structure and purity of compounds. Chinese patent CN111562335B discloses a liquid injection system for a gas chromatograph, including a liquid quantitative injection device and a liquid vaporization device connected together. During use, the liquid quantitative injection device quantitatively delivers liquid to the liquid vaporization device, which vaporizes the quantitative liquid delivered by the liquid quantitative injection device and delivers the vaporized gas to the chromatographic column for analysis. In existing systems, when the vaporization tube assembly and heating device heat the sample during vaporization, high-viscosity or low-volatility samples easily form droplets or thin films within the vaporization tube assembly, adsorbing onto the inner wall of the vaporization tube assembly. Furthermore, the structure of the vaporization tube assembly and heating device cannot avoid sample component splitting discrimination due to uneven temperature distribution. To address these issues, we propose a detection device for 2-fluoro-6-aminotoluene compounds. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a detection device for 2-fluoro-6-aminotoluene compounds. This device solves the problem in existing liquid vaporization devices where high-viscosity or low-volatility samples tend to form droplets or films within the vaporization tube assembly and adsorb onto the inner wall of the vaporization tube assembly during sample vaporization and heating.

[0005] This invention is implemented as follows: a detection device for 2-fluoro-6-aminotoluene compounds, the detection device comprising:

[0006] The detection body includes an injection chamber, a vaporization chamber, a chromatographic column chamber, and a detector. The injection chamber and the vaporization chamber are connected. The vaporization chamber is connected to the chromatographic column chamber through a gas delivery tube. The chromatographic column chamber is connected to the detector.

[0007] A heating vaporization mechanism is used to assist in heating the sample. The heating vaporization mechanism includes an adjustable preheating section, a uniform heating resistance wire, and a heat-insulating resistance wire. The uniform heating resistance wire and the heat-insulating resistance wire are installed in the vaporization chamber. The adjustable preheating section is slidably sleeved on the outer wall of the sample injection chamber.

[0008] A linkage adjustment mechanism is mounted on the detection base and is used to synchronously drive the gasification chamber and the adjustable preheating section.

[0009] The linkage adjustment mechanism includes:

[0010] A linkage motor is fixedly mounted on the detection base;

[0011] A synchronous drive unit is fixedly connected to the output end of the linkage motor. The synchronous drive unit is used to drive the gasification chamber to rotate and assist in uniformly heating the sample.

[0012] A linkage limiting part is disposed on the detection base and connected to a synchronous drive part. The linkage limiting part is used to limit the gasification chamber and synchronously drive the gasification chamber to rotate.

[0013] A preheating adjustment unit connected to the synchronous drive unit, the preheating adjustment unit being connected to the adjustable preheating unit, the preheating adjustment unit being used to synchronously adjust the position of the adjustable preheating unit.

[0014] Preferably, the adjustable preheating section includes:

[0015] An adjustable heat shield is slidably fitted onto the outer wall of the sample inlet chamber and is connected to a preheating adjustment unit.

[0016] The preheating resistance wire is embedded in the adjustable heat shield and is used to preheat the sample in the injection chamber.

[0017] Preferably, the vaporization chamber comprises:

[0018] The vaporization insulation seat is hollow inside, and the bottom of the vaporization insulation seat is connected to the linkage limiting part.

[0019] A vaporization heat insulation plate is fixedly embedded in a vaporization heat insulation seat. The vaporization heat insulation plate divides the vaporization heat insulation seat into a uniform heating chamber and a sample heat insulation chamber. A uniform heating resistance wire is fixedly installed in the uniform heating chamber, and a heat insulation resistance wire is fixedly installed in the sample heat insulation chamber.

[0020] A vaporization heating tube is rotatably installed inside the vaporization insulation base. The top of the vaporization heating tube is rotatably connected to the sample inlet chamber via a liquid guide tube, which is fixedly installed at the bottom of the sample inlet chamber.

[0021] An anti-clogging exhaust pipe is fixedly installed at the bottom of the vaporization insulation base. The anti-clogging exhaust pipe is used to accelerate the discharge of the vaporized sample. One end of the anti-clogging exhaust pipe is fixedly connected to the gas guide pipe.

[0022] A spiral discrete seat that is fixedly installed inside an anti-clogging exhaust pipe.

[0023] Preferably, the synchronization drive unit includes:

[0024] A drive wheel is rotatably mounted on a detection base, and one side of the drive wheel is fixedly connected to the output end of a linkage motor.

[0025] A driven wheel mounted on the detection base is rotatably connected to a drive wheel via a conveyor belt, and one side of the driven wheel is connected to a preheating adjustment unit.

[0026] A synchronous drive shaft is fixedly connected to the other side of the driven wheel;

[0027] At least one set of synchronous actuating levers, the synchronous actuating levers being fixedly mounted on the synchronous drive shaft, the synchronous actuating levers being used to actuate the movement of the linkage limiting part;

[0028] At least one set of arc-shaped stop seats, the arc-shaped stop seats being used to limit and stop the linkage limiting part;

[0029] A rotating wheel coupling is fixedly mounted on a drive rotating wheel, and a drive swing arm is fixedly mounted on the end of the rotating wheel coupling away from the drive rotating wheel.

[0030] The drive hinge seat that is slidably connected to the drive swing arm, and

[0031] The synchronous lifting seat has one side rotatably connected to the top of the drive hinge seat, and the end of the synchronous lifting seat away from the detection base passes through the linkage limiting part and is fixedly connected to the gasification support seat.

[0032] Preferably, the linkage limiting part includes:

[0033] A limiting rotating seat is rotatably connected to a detection base, and a synchronous lifting seat passes through the limiting rotating seat and is slidably connected to it.

[0034] At least one set of oblique linkage grooves are provided, which are intersected and formed on the side wall of the limiting rotary seat, and the oblique linkage grooves are slidably connected to the synchronous actuating rod.

[0035] At least one set of stop guide grooves are provided at the upper and lower ends of the limiting rotary seat, and the stop guide grooves are slidably connected to the arc-shaped stop seat.

[0036] Preferably, the preheating regulating unit includes:

[0037] The first gear is fixedly connected to the driven wheel;

[0038] A first toothed seat is fitted onto a first gear, the first toothed seat meshes with the first gear, and the first toothed seat is slidably connected to the detection base;

[0039] The preheating linkage seat is hollow inside, and a preheating limiting block is slidably embedded inside the preheating linkage seat. The preheating limiting block is fixedly installed on the detection base, and the upper and lower ends of the preheating linkage seat are fixedly connected to the adjustable heat insulation cover and the first tooth seat, respectively.

[0040] Preferably, the detector comprises:

[0041] A detection outer cover, wherein a detection combustion chamber is provided inside the detection outer cover;

[0042] A detection function component is disposed inside the detection combustion chamber and is used to perform combustion ionization detection on the gasified sample.

[0043] The detection function components include:

[0044] An anti-carbon deposit nozzle is disposed inside the detection combustion chamber and is connected to the chromatographic column chamber.

[0045] The detection anode is fixedly sleeved on the outer wall of the anti-carbon deposit nozzle;

[0046] An auxiliary cathode that works in conjunction with the detection anode is fitted in the middle of the detection combustion chamber.

[0047] Preferably, the detection function component further includes:

[0048] An ignition coil is disposed inside the detection combustion chamber and is used to ignite the sample.

[0049] An electron collecting electrode is fixedly embedded in the detection combustion chamber, and the electron collecting electrode is used to collect electrons;

[0050] The coil displacement section is located at the top of the combustion chamber and is connected to the ignition coil. The coil displacement section is used to adjust the ignition position of the ignition coil.

[0051] Preferably, the anti-carbon deposit nozzle comprises:

[0052] A sample release nozzle is fixedly installed at the bottom of the detection combustion chamber;

[0053] Rotate the scraper mount mounted on top of the sample release nozzle;

[0054] At least one set of carbon deposit scrapers, wherein the carbon deposit scrapers are fixedly installed in the scraper mounting seat and are slidably connected to the inner wall of the sample release nozzle;

[0055] A gas mixing and equalization tube is sleeved at the bottom of the sample release nozzle;

[0056] At least one set of bent diverter pipes, the bent diverter pipes being fixedly installed on the gas mixing and equalizing pipe, and the top of the bent diverter pipes being fixedly connected to a gas dispersing pipe.

[0057] Preferably, the coil displacement section includes:

[0058] At least one set of displacement motors, the displacement motors being fixedly mounted on the top of the detection combustion chamber;

[0059] A displacement worm gear is fixedly connected to the output end of the displacement motor. Two sets of displacement worm gears are symmetrically arranged. The end of the displacement worm gear away from the displacement motor is rotatably connected to the detection combustion chamber.

[0060] A displacement worm gear is disposed between the two sets of displacement worms, and the displacement worm gear meshes with the displacement worm for transmission.

[0061] A displacement coupling is fixedly connected to the displacement worm gear, and a second gear is fixedly connected to the end of the displacement coupling away from the displacement worm gear.

[0062] A second gear seat is fitted on the outside of the second gear, and the second gear seat meshes with the second gear for transmission.

[0063] A gear seat positioning seat is slidably sleeved on the outer wall of the second gear seat. The gear seat positioning seat is used to guide and limit the second gear seat. The gear seat positioning seat is fixedly installed on the coupling sleeve, and the coupling sleeve is rotatably installed on the outer wall of the displacement coupling shaft.

[0064] A coil support is fixedly connected to a second toothed seat, and the ignition coil is installed inside the coil support.

[0065] Compared with the prior art, the embodiments of this application have the following main advantages:

[0066] In this embodiment of the invention, a vaporization chamber, a synchronous drive unit, and a linkage limiting unit are provided. The synchronous drive unit and the linkage limiting unit work together to synchronously drive the vaporization chamber to move up and down while reciprocating, ensuring the sample vaporization speed and uniformity. This overcomes the problem in existing liquid vaporization devices where, when the vaporization tube assembly and heating device heat the sample for vaporization, high-viscosity or low-volatility samples easily form droplets or films in the vaporization tube assembly, adsorbing onto the inner wall of the vaporization tube assembly. At the same time, the structure of the vaporization tube assembly and heating device cannot avoid the problem of sample component splitting and discrimination caused by uneven temperature distribution.

[0067] In this embodiment of the invention, a vaporization chamber is provided, which consists of a vaporization heating tube, a spiral discretization seat, and a heat-spreading resistance wire. The vaporization heating tube has a narrower diameter at the top and a wider diameter at the bottom, so that the heat-spreading resistance wire adheres to the outer wall of the vaporization heating tube, thereby avoiding the phenomenon of sample "hanging" or adsorption. At the same time, the spiral discretization seat can accelerate the dispersion of the vaporized sample when the vaporization heating tube rotates, further preventing the sample from clogging inside the vaporization heating tube and improving the sample vaporization success rate.

[0068] In this embodiment of the invention, a linkage limiting part is provided, which consists of a limiting rotating seat, an inclined linkage groove, and a stop guide groove. The limiting rotating seat, the inclined linkage groove, and the stop guide groove work together to guide and limit the vaporization chamber, thereby enabling the synchronous drive part to reciprocate to drive the vaporization chamber to rotate and rise, which improves the sample heating and vaporization efficiency and also prevents the sample from adsorbing on the inner wall of the vaporization chamber.

[0069] In this embodiment of the invention, a detector is provided, which includes a detection function component. The detection function component consists of an anti-carbon deposit nozzle, an ignition coil, and a coil displacement part. The anti-carbon deposit nozzle can reduce carbon deposits while improving flame stability and reducing baseline noise. The coil displacement part can prevent the gap between the anti-carbon deposit nozzle and the ignition coil from being too large or too small, thereby ensuring ignition effect and ignition success rate. Attached Figure Description

[0070] Figure 1 This is a schematic diagram of the 2-fluoro-6-aminotoluene compound detection device provided by the present invention.

[0071] Figure 2 This is an isometric view of the 2-fluoro-6-aminotoluene compound detection device provided by the present invention.

[0072] Figure 3 This is a side view of the 2-fluoro-6-aminotoluene compound detection device provided by the present invention.

[0073] Figure 4 yes Figure 3 A sectional view along line AA.

[0074] Figure 5 yes Figure 4 A magnified schematic diagram of part A in the diagram.

[0075] Figure 6 This is a schematic diagram of the gasification chamber provided by the present invention.

[0076] Figure 7 This is an isometric view of the gasification chamber provided by the present invention.

[0077] Figure 8This is a schematic diagram of the linkage adjustment mechanism provided by the present invention.

[0078] Figure 9 This is a schematic diagram of the synchronous drive unit provided by the present invention.

[0079] Figure 10 This is a schematic diagram of the linkage limiting part provided by the present invention.

[0080] Figure 11 This is a schematic diagram of the detector provided by the present invention.

[0081] Figure 12 This is a top view of the detector provided by the present invention.

[0082] Figure 13 yes Figure 12 BB-direction sectional view.

[0083] Figure 14 This is a schematic diagram of the anti-carbon deposit nozzle provided by the present invention.

[0084] Figure 15 This is a schematic diagram of the structure of the coil displacement section provided by the present invention.

[0085] Figure 16 This is a bottom view of the coil displacement section provided by the present invention.

[0086] In the diagram: 1-Detection body, 11-Sample injection chamber, 111-Liquid guide tube, 12-Vaporization chamber, 121-Vaporization insulation seat, 122-Vaporization heating tube, 123-Uniform heating chamber, 124-Sample insulation chamber, 125-Anti-clogging exhaust pipe, 126-Spiral discretization seat, 127-Vaporization heat insulation plate, 13-Gas guide tube, 14-Chromatographic column chamber, 15-Detector, 151-Detection outer cover, 152-Detection combustion chamber, 16-Heating tube limiting part, 161-Tube mounting seat, 16 2-Heating element limiting ring, 163-Arc-shaped telescopic sleeve, 17-Detection base, 2-Linkage adjustment mechanism, 21-Linkage motor, 22-Synchronous drive unit, 221-Drive wheel, 222-Driven wheel, 223-Wheel coupling shaft, 224-Drive swing arm, 225-Drive hinge seat, 226-Synchronous lifting seat, 227-Synchronous drive shaft, 228-Synchronous actuation rod, 229-Arc-shaped stop seat, 23-Linkage limiting unit, 231-Limiting rotation seat, 232-Stop Guide groove, 233- Inclined linkage groove, 234- Vaporization support seat, 24- Preheating adjustment section, 241- First gear, 242- First gear seat, 243- Preheating limit block, 244- Preheating linkage seat, 3- Heating vaporization mechanism, 31- Adjustable preheating section, 311- Adjustable heat insulation cover, 312- Preheating resistance wire, 32- Heat-spreading resistance wire, 33- Insulation resistance wire, 4- Detection function component, 41- Anti-carbon deposit nozzle, 411- Sample release nozzle, 412- Scraper installation 413-Carbon scraper, 414-Gas mixing and equalization pipe, 415-Bent split pipe, 416-Gas dispersion pipe, 42-Detection anode, 43-Auxiliary cathode, 44-Electron collecting electrode, 45-Ignition coil, 46-Coil displacement part, 461-Displacement motor, 462-Displacement worm, 463-Displacement worm wheel, 464-Displacement coupling, 465-Second gear, 466-Second gear seat, 467-Gear seat positioning seat, 468-Coil support seat, 469-Coupling sleeve seat. Detailed Implementation

[0087] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0088] In existing liquid vaporization devices, when vaporizing and heating samples, high-viscosity or low-volatility samples tend to form droplets or thin films within the vaporization tube assembly, adsorbing onto the inner wall of the assembly. Furthermore, the structure of the vaporization tube assembly and heating device cannot prevent sample component separation and discrimination due to uneven temperature distribution. To address these issues, we propose a detection device for 2-fluoro-6-aminotoluene compounds. In short, the device consists of a detection body 1, a heating and vaporization mechanism 3, and a linkage adjustment mechanism 2. The detection body 1 includes an injection chamber 11, a vaporization chamber 12, a chromatographic column chamber 14, and a detector 15. The heating and vaporization mechanism 3 includes an adjustable preheating section 31, a homogenizing resistance wire 32, and a heat-insulating resistance wire 33. The linkage adjustment mechanism 2 consists of a linkage motor 21, a synchronous drive section 22, a linkage limiting section 23, and a preheating adjustment section 24. When testing the sample, the liquid sample enters the injection chamber 11, and then the linkage motor 21, adjustable preheating unit 31, homogenizing resistance wire 32, and heat preservation resistance wire 33 are activated. The linkage motor 21 starts and drives the synchronous drive unit 22 to move. The synchronous drive unit 22 can synchronously drive the linkage limiting unit 23 and the preheating adjustment unit 24 to start. The start of the preheating adjustment unit 24 can drive the adjustable preheating unit 31 to move up and down along the outer wall of the injection chamber 11, thereby achieving uniform preheating of the sample in the injection chamber 11. The synchronous drive unit 22 and the linkage limiting unit 23 work together to synchronously drive the vaporization chamber 12 to move up and down and rotate back and forth, ensuring the vaporization speed and uniformity of the sample. The vaporized sample enters the gas guide tube 13 and enters the chromatographic column chamber 14 to achieve sample component separation. Then the separated vaporized sample enters the detector 15, and the detector 15 performs combustion detection on it to complete the rapid detection of the sample. In this embodiment of the invention, a vaporization chamber 12, a synchronous drive unit 22, and a linkage limiting unit 23 are provided. The synchronous drive unit 22 and the linkage limiting unit 23 work together to synchronously drive the vaporization chamber 12 to move up and down while reciprocating, ensuring the sample vaporization speed and uniformity. This overcomes the problem in existing liquid vaporization devices where, when the vaporization tube assembly and heating device heat the sample for vaporization, high-viscosity or low-volatility samples easily form droplets or films in the vaporization tube assembly, adsorbing onto the inner wall of the vaporization tube assembly. At the same time, the structure of the vaporization tube assembly and heating device cannot avoid the problem of sample component diversion discrimination caused by uneven temperature distribution.

[0089] It should be noted that the embodiments of the present invention can be used for the chromatographic analysis and detection of 2-fluoro-6-aminotoluene compounds such as 2-amino-6-fluorobenzoic acid and 6-amino-2-fluorotoluene, or intermediates of 2-fluoro-6-aminotoluene compounds.

[0090] This invention provides a detection device for 2-fluoro-6-aminotoluene compounds, such as... Figures 1-4 As shown, the 2-fluoro-6-aminotoluene compound detection device includes:

[0091] The detection body 1 includes an injection chamber 11, a vaporization chamber 12, a chromatographic column chamber 14, and a detector 15. The injection chamber 11 and the vaporization chamber 12 are connected. The vaporization chamber 12 is connected to the chromatographic column chamber 14 through a gas delivery tube 13. The chromatographic column chamber 14 is connected to the detector 15.

[0092] It should be noted that the chromatographic column chamber 14 is equipped with a chromatographic column for separating the vaporized sample. Although the working method and principle of the chromatographic column chamber 14 are not shown in this embodiment, the chromatographic column can be a packed column or a capillary column as used in the prior art. In this embodiment, the injection chamber 11 is connected to the chromatograph's injector.

[0093] Heating vaporization mechanism 3 is used to assist in heating the sample. Heating vaporization mechanism 3 includes an adjustable preheating part 31, a uniform heating resistance wire 32, and a heat preservation resistance wire 33. The uniform heating resistance wire 32 and the heat preservation resistance wire 33 are installed in the vaporization chamber 12. The adjustable preheating part 31 is slidably sleeved on the outer wall of the sample injection chamber 11.

[0094] In this embodiment, the adjustable preheating section 31, the uniform heating resistance wire 32, and the heat-insulating resistance wire 33 are all electrically connected to a battery pack and a PLC controller. The adjustable preheating section 31 can be covered with a heat-insulating layer to ensure the preheating effect. The uniform heating resistance wire 32 ensures uniform heating of the sample entering the vaporization chamber 12. The uniform heating resistance wire 32 has a spiral resistance wire structure with a large opening at the bottom and a small opening at the top. This structure allows the uniform heating resistance wire 32 to adapt to the structure of the vaporization chamber 12. On the one hand, it avoids the formation of droplets or films of the sample in the vaporization chamber 12, which are then adsorbed onto the inner wall of the vaporization chamber 12. On the other hand, the irregular spiral structure allows for rapid heating of the sample when it enters the port of the vaporization chamber 12, while ensuring that the sample entering the middle of the vaporization chamber 12 is kept warm and the heating is slowed down, further avoiding the problem of sample residue in the vaporization chamber 12.

[0095] It should be noted that the heat-insulating resistance wire 33 has a uniform spiral structure, and the setting of the heat-insulating resistance wire 33 realizes the auxiliary heat preservation of the vaporized sample.

[0096] A linkage adjustment mechanism 2 is mounted on the detection base 17. The linkage adjustment mechanism 2 is used to synchronously drive the gasification chamber 12 and the adjustable preheating section 31.

[0097] Among them, such as Figure 8 As shown, the linkage adjustment mechanism 2 includes:

[0098] A linkage motor 21 is fixedly mounted on the detection base 17.

[0099] In this embodiment, the linkage motor 21 is fixedly installed on the detection base 17 by means of clamps or welding. The detection base 17 can be embedded in the inner shell of the gas chromatograph or fixedly connected to the side wall of the chromatographic column chamber 14.

[0100] The synchronous drive unit 22 is fixedly connected to the output end of the linkage motor 21. The synchronous drive unit 22 is used to drive the gasification chamber 12 to rotate and assist in uniformly heating the sample.

[0101] A linkage limiting part 23 is disposed on the detection base 17 and connected to the synchronous drive part 22. The linkage limiting part 23 is used to limit the gasification chamber 12 and synchronously drive the gasification chamber 12 to rotate.

[0102] A preheating adjustment unit 24 is connected to the synchronous drive unit 22 and is connected to the adjustable preheating unit 31. The preheating adjustment unit 24 is used to synchronously adjust the position of the adjustable preheating unit 31.

[0103] In this embodiment, when the sample is being tested, the liquid sample enters the injection chamber 11, and then the linkage motor 21, adjustable preheating unit 31, homogenizing resistance wire 32, and heat preservation resistance wire 33 are activated. The linkage motor 21 starts and drives the synchronous drive unit 22 to move. The synchronous drive unit 22 can synchronously drive the linkage limiting unit 23 and the preheating adjustment unit 24 to start. The start of the preheating adjustment unit 24 can drive the adjustable preheating unit 31 to move up and down along the outer wall of the injection chamber 11, thereby achieving uniform preheating of the sample in the injection chamber 11. The synchronous drive unit 22 and the linkage limiting unit 23 work together to synchronously drive the vaporization chamber 12 to move up and down and rotate back and forth, ensuring the sample vaporization speed and uniformity. The vaporized sample enters the gas guide tube 13 and enters the chromatographic column chamber 14 to achieve sample component separation. Then the separated vaporized sample enters the detector 15, and the detector 15 performs combustion detection on it to complete the rapid detection of the sample.

[0104] In this embodiment of the invention, a vaporization chamber 12, a synchronous drive unit 22, and a linkage limiting unit 23 are provided. The synchronous drive unit 22 and the linkage limiting unit 23 work together to synchronously drive the vaporization chamber 12 to move up and down while reciprocating, ensuring the sample vaporization speed and uniformity. This overcomes the problem in existing liquid vaporization devices where, when the vaporization tube assembly and heating device heat the sample for vaporization, high-viscosity or low-volatility samples easily form droplets or films in the vaporization tube assembly, adsorbing onto the inner wall of the vaporization tube assembly. At the same time, the structure of the vaporization tube assembly and heating device cannot avoid the problem of sample component diversion discrimination caused by uneven temperature distribution.

[0105] In a further preferred embodiment of the present invention, such as Figure 4 As shown, the adjustable preheating unit 31 includes:

[0106] An adjustable heat shield 311 is slidably sleeved on the outer wall of the sample inlet chamber 11, and the adjustable heat shield 311 is connected to the preheating adjustment part 24.

[0107] The preheating resistance wire 312 is embedded in the adjustable heat shield 311 and is used to preheat the sample in the sample inlet chamber 11.

[0108] In this embodiment, the adjustable heat insulation cover 311 can be an internally hollow annular cover or an annular seat, and the outer wall of the adjustable heat insulation cover 311 is coated with a heat insulation layer. The preheating resistance wire 312 can also be a uniform spiral structure.

[0109] In a further preferred embodiment of the present invention, such as Figures 5-7 As shown, the vaporization chamber 12 includes:

[0110] The vaporization insulation seat 121 is hollow inside, and the bottom of the vaporization insulation seat 121 is connected to the linkage limiting part 23.

[0111] The vaporization heat preservation base 121 can be a hollow round base or round can structure, and the vaporization heat preservation base 121 can be made of stainless steel or titanium alloy.

[0112] A vaporization heat insulation plate 127 is fixedly embedded in a vaporization heat insulation seat 121. The vaporization heat insulation plate 127 divides the vaporization heat insulation seat 121 into a uniform heating chamber 123 and a sample heat insulation chamber 124. A uniform heating resistance wire 32 is fixedly installed in the uniform heating chamber 123, and a heat insulation resistance wire 33 is fixedly installed in the sample heat insulation chamber 124.

[0113] The vaporization heating tube 122 is rotatably installed in the vaporization heat preservation base 121. The top of the vaporization heating tube 122 is rotatably connected to the sample inlet chamber 11 through the liquid guide tube 111. The liquid guide tube 111 is fixedly installed at the bottom of the sample inlet chamber 11.

[0114] The vaporization heat insulation plate 127 can be a hollow circular plate or a circular seat structure. The vaporization heat insulation plate 127 is fixedly connected to the inner wall of the vaporization heat insulation seat 121 by welding or riveting. The vaporization heat insulation plate 127 is rotatably connected to the inner wall of the vaporization heating tube 122 by rollers or bearings. In order to ensure the uniformity of sample vaporization and to avoid the phenomenon of sample "hanging" or adsorption, the vaporization heating tube 122 can be an inverted funnel-shaped structure, that is, the diameter of the vaporization heating tube 122 is narrow at the top and wide at the bottom, so that the heat equalization resistance wire 32 is attached to the outer wall of the vaporization heating tube 122.

[0115] Anti-clogging exhaust pipe 125 is fixedly installed at the bottom of vaporization heat preservation base 121. Anti-clogging exhaust pipe 125 is used to accelerate the discharge of vaporized sample. One end of anti-clogging exhaust pipe 125 is fixedly connected to gas guide pipe 13.

[0116] A spiral discrete seat 126 is fixedly installed inside the anti-clogging exhaust pipe 125.

[0117] In this embodiment, the anti-clogging exhaust pipe is fixedly installed at the bottom of the vaporization insulation seat 121 by means of threads or snaps, and the anti-clogging exhaust pipe 125 is connected to the vaporization heating pipe 122. The anti-clogging exhaust pipe 125 is fixedly connected to the air guide pipe 13 by means of clamp and sealing flange. The spiral discrete seat 126 has a spiral auger-like structure.

[0118] In this embodiment of the invention, a vaporization chamber 12 is provided, which consists of a vaporization heating tube 122, a spiral discretizing seat 126, and a heat-spreading resistance wire 32. The vaporization heating tube 122 has a narrower diameter at the top and a wider diameter at the bottom, so that the heat-spreading resistance wire 32 adheres to the outer wall of the vaporization heating tube 122, thereby avoiding the phenomenon of sample "hanging" or adsorption. At the same time, the spiral discretizing seat 126 can accelerate the dispersion of the vaporized sample when the vaporization heating tube 122 rotates, further preventing the sample from clogging inside the vaporization heating tube 122 and improving the sample vaporization success rate.

[0119] It should be noted that the vaporization heating tube 122 and the vaporization insulation base 121 are connected by a heating tube limiting part 16, and the heating tube limiting part 16 includes:

[0120] The pipe mounting base 161 is fixedly connected to the gasification heating pipe 122 by welding or riveting, and the pipe mounting base 161 is rotatably connected to the gasification insulation base 121 by bearings or rollers.

[0121] A heating tube limiting ring 162 is rotatably connected to the tube mounting base 161, and the heating tube limiting ring 162 is fixedly embedded in the inner wall of the vaporization insulation base 121;

[0122] At least one set of arc-shaped telescopic sleeves 163 are provided circumferentially on the end wall of the vaporization insulation seat 121. The telescopic ends of the arc-shaped telescopic sleeves 163 are fixedly connected to the pipe mounting seat 161. The arc-shaped telescopic sleeves 163 can be hydraulic telescopic rods or spring telescopic rods.

[0123] In a further preferred embodiment of the present invention, such as Figure 9 As shown, the synchronous drive unit 22 includes:

[0124] A drive wheel 221 is rotatably mounted on the detection base 17, and one side of the drive wheel 221 is fixedly connected to the output end of the linkage motor 21.

[0125] The driven wheel 222 is rotatably mounted on the detection base 17. The driven wheel 222 is rotatably connected to the drive wheel 221 via a conveyor belt. One side of the driven wheel 222 is connected to the preheating adjustment unit 24.

[0126] Synchronous drive shaft 227 is fixedly connected to the other side of driven wheel 222;

[0127] It should be noted that both the drive wheel 221 and the driven wheel 222 can be rotatably connected to the detection base 17 via bearings or rollers. One side of the drive wheel 221 is fixedly connected to the linkage motor 21 by plugging or riveting, while the driven wheel 222 is fixedly connected to the synchronous drive shaft 227 by welding or plugging.

[0128] At least one set of synchronous actuating rods 228 are fixedly mounted on the synchronous drive shaft 227. The synchronous actuating rods 228 are used to actuate the linkage limiting part 23.

[0129] At least one set of arc-shaped stop seats 229, the arc-shaped stop seats 229 being used to limit and stop the linkage limiting part 23;

[0130] In this embodiment, two sets of synchronous actuation rods 228 and arc-shaped stop seats 229 are symmetrically arranged, and the synchronous actuation rods 228 and arc-shaped stop seats 229 are fixedly installed at the end of the synchronous drive shaft 227 by means of snap-fit, thread or welding.

[0131] A rotating shaft 223 is fixedly mounted on a drive rotating wheel 221, and a drive swing arm 224 is fixedly mounted on one end of the rotating shaft 223 away from the drive rotating wheel 221.

[0132] A drive hinge seat 225 slidably connected to the drive swing arm 224, the drive hinge seat 225 being slidably connected to the detection base 17, and

[0133] The synchronous lifting seat 226 has one side rotatably connected to the top of the drive hinge seat 225, and the end of the synchronous lifting seat 226 away from the detection base 17 passes through the linkage limiting part 23 and is fixedly connected to the gasification support seat 234.

[0134] In this embodiment, the rotating wheel coupling 223 is fixedly connected to the side wall of the driving rotating wheel 221 by welding or interference fit. The rotating wheel coupling 223 is welded or riveted to the driving swing arm 224. The driving hinge seat 225 can be an internally hollow arc-shaped or semi-circular hinge seat structure. The driving swing arm 224 and the driving hinge seat 225 are slidably connected by a hinge block. The synchronous lifting seat 226 can be a "T" shaped seat or a rectangular seat structure. The top of the synchronous lifting seat 226 is fixedly connected to the gasification support seat 234 by snap-fit ​​or fastening bolts. The gasification support seat 234 is fixedly connected to the side wall or end wall of the gasification insulation seat 121.

[0135] In a further preferred embodiment of the present invention, such as Figure 10 As shown, the linkage limiting part 23 includes:

[0136] A limiting rotating seat 231 is rotatably connected to the detection base 17, and a synchronous lifting seat 226 passes through the limiting rotating seat 231 and is slidably connected to the limiting rotating seat 231.

[0137] At least one set of inclined linkage grooves 233 are provided, which are intersected on the side wall of the limiting rotation seat 231, and the inclined linkage grooves 233 are slidably connected to the synchronous actuating rod 228.

[0138] At least one set of stop guide grooves 232 are provided at the upper and lower ends of the limiting rotary seat 231, and the stop guide grooves 232 are slidably connected to the arc-shaped stop seat 229.

[0139] In this embodiment, the limiting rotating seat 231 is rotatably connected to the detection base 17 through a bearing ring or roller seat. A rectangular groove or "T"-shaped groove structure for guiding and limiting the synchronous lifting seat 226 is provided at the center of the limiting rotating seat 231. The inclined linkage groove 233 is an arc-shaped groove with polished inner wall. The stop guide groove 232 can be a rectangular groove or a dovetail groove structure.

[0140] In this embodiment of the invention, a linkage limiting part 23 is provided. The linkage limiting part 23 consists of a limiting rotating seat 231, an inclined linkage groove 233, and a stop guide groove 232. The limiting rotating seat 231, the inclined linkage groove 233, and the stop guide groove 232 work together to guide and limit the vaporization chamber 12, thereby enabling the synchronous drive part 22 to reciprocate to drive the vaporization chamber 12 to rotate and rise, which improves the sample heating and vaporization efficiency and also prevents the sample from adsorbing on the inner wall of the vaporization chamber 12.

[0141] During operation, the linkage motor 21 is turned on, which drives the drive wheel 221 and the driven wheel 222 to rotate. This causes the drive wheel 221 to drive the wheel coupling 223 to rotate, which in turn drives the drive swing arm 224 to rotate. The drive swing arm 224 then drives the drive hinge seat 225 and the synchronous lifting seat 226 to move up and down reciprocally. This causes the synchronous lifting seat 226 to move the gasification support seat 234 and the gasification chamber 12 up and down, thus achieving the up and down movement of the gasification chamber 12. The accelerated mixing of the sample within chamber 2, along with the rotation of the driven wheel 222, drives the synchronous actuating rod 228 and the arc-shaped stop seat 229 to rotate. This causes the synchronous actuating rod 228 and the arc-shaped stop seat 229 to alternately contact the inclined linkage groove 233 and the stop guide groove 232. Consequently, the synchronous actuating rod 228 drives the limiting rotating seat 231 to rotate the vaporization support seat 234, thereby achieving the purpose of synchronously driving the vaporization chamber 12 to rotate, enhancing the sample vaporization effect, and ensuring vaporization efficiency.

[0142] In a further preferred embodiment of the present invention, such as Figure 8 As shown, the preheating adjustment unit 24 includes:

[0143] The first gear 241 is fixedly connected to the driven wheel 222;

[0144] A first gear seat 242 is sleeved on the first gear 241, and the first gear seat 242 meshes with the first gear 241 for transmission. The first gear seat 242 is slidably connected to the detection base 17.

[0145] The preheating linkage seat 244 is hollow inside, and a preheating limiting block 243 is slidably embedded inside the preheating linkage seat 244. The preheating limiting block 243 is fixedly installed on the detection base 17. The upper and lower ends of the preheating linkage seat 244 are fixedly connected to the adjustable heat insulation cover 311 and the first tooth seat 242, respectively.

[0146] In this embodiment, the first gear 241 is fixedly connected to the driven wheel 222 by plugging or welding. The first gear 241 can be a one-third, one-quarter, or one-fifth incomplete gear. Two sets of racks are symmetrically arranged on the inner wall of the first gear seat 242. The top of the first gear seat 242 is welded or riveted to the lower end of the preheating linkage seat 244. The preheating limiting block 243 can be an "I"-shaped steel or a "T"-shaped block structure. The preheating limiting block 243 is fixedly installed on the detection base 17 by welding or tenoning. The top wall of the preheating linkage seat 244 is riveted to the side wall or end wall of the adjustable heat insulation cover 311.

[0147] When the driven wheel 222 rotates, the rotation of the driven wheel 222 can drive the first gear 241 to rotate, thereby causing the first gear 241 to drive the first gear seat 242, the preheating linkage seat 244 and the adjustable heat insulation cover 311 to move up and down, which improves the preheating efficiency of the sample in the sample injection chamber 11.

[0148] In a further preferred embodiment of the present invention, such as Figures 11-13 As shown, the detector 15 includes:

[0149] A detection cover 151 is provided, and a detection combustion chamber 152 is provided inside the detection cover 151;

[0150] The detection function component 4 is disposed in the detection combustion chamber 152 and is used to perform combustion ionization detection on the gasified sample.

[0151] It should be noted that the detector 15 is fixedly installed on the top of the chromatographic column chamber 14 or inside the chromatograph housing by means of a snap-fit ​​or fastening bolt.

[0152] Among them, the detection function component 4 includes:

[0153] Anti-carbon deposit nozzle 41 is disposed in the detection combustion chamber 152 and is connected to the chromatographic column chamber 14.

[0154] The detection anode 42 is fixedly sleeved on the outer wall of the anti-carbon deposit nozzle 41;

[0155] An auxiliary cathode 43 cooperates with the detection anode 42 and is sleeved in the middle of the detection combustion chamber 152.

[0156] Ignition coil 45 is disposed in the detection combustion chamber 152 and is used to perform sample ignition.

[0157] An electron collecting electrode 44 is fixedly embedded in the detection combustion chamber 152, and the electron collecting electrode 44 is used to collect electrons;

[0158] The coil displacement part 46 is disposed on the top of the detection combustion chamber 152 and is connected to the ignition coil 45. The coil displacement part 46 is used to adjust the ignition position of the ignition coil 45.

[0159] In this embodiment, the detection anode 42 is fixedly installed on the outer wall of the anti-carbon deposit nozzle 41 by means of snap-fit ​​or tenon joint. The auxiliary cathode 43 can be sleeved on the inner or outer wall of the middle part of the detection combustion chamber 152. The electron collecting electrode 44 is a cylindrical structure that is wider at the bottom and narrower at the bottom. The electron collecting electrode 44 with this structure can have a large surface area, which helps to collect more electrons and thus improve the sensitivity. The other structures of the detector 15 in this embodiment are similar to those of the hydrogen flame ionization detector 15 (FID), and will not be described in detail here.

[0160] In this embodiment of the invention, a detector 15 is provided, which includes a detection function component 4. The detection function component 4 consists of an anti-carbon deposit nozzle 41, an ignition coil 45, and a coil displacement part 46. The anti-carbon deposit nozzle 41 can reduce carbon deposits while improving flame stability and reducing baseline noise. The coil displacement part 46 can prevent the gap between the anti-carbon deposit nozzle 41 and the ignition coil 45 from being too large or too small, thereby ensuring ignition effect and ignition success rate.

[0161] In a further preferred embodiment of the present invention, such as Figure 14 As shown, the anti-carbon deposit nozzle 41 includes:

[0162] Sample release nozzle 411, which is fixedly installed at the bottom of the detection combustion chamber 152;

[0163] Rotate the scraper mounting base 412 mounted on top of the sample release nozzle 411;

[0164] At least one set of carbon deposit scrapers 413 are fixedly installed in the scraper mounting base 412, and the carbon deposit scrapers 413 are slidably connected to the inner wall of the sample release nozzle 411.

[0165] Gas mixing and equalization tube 414, which is sleeved on the bottom of sample release nozzle 411;

[0166] At least one set of bent diversion pipes 415 are fixedly installed on the gas mixing pipe 414, and the top of the bent diversion pipe 415 is fixedly connected to a gas dispersing pipe 416.

[0167] It should be noted that the gas mixing and equalization pipe 414 is connected to the combustion-supporting gas, air and purge gas sources respectively, thereby realizing the equalization of the combustion-supporting gas, air and purge gas. The bent diversion pipe 415 is circumferentially arranged on the gas mixing and equalization pipe 414, and the gas dispersion pipe 416 can be a spiral pipe or a "V" shaped pipe structure.

[0168] In this embodiment, the sample release nozzle 411 is a hollow conical nozzle structure, and both the inner and outer walls of the sample release nozzle 411 are polished. The scraper mounting seat 412 is rotatably connected to the end of the sample release nozzle 411 by means of bearings or rollers. The carbon deposit scraper 413 is a high-temperature resistant alloy sheet structure with a polished surface. The carbon deposit scraper 413 can be evenly arranged on the scraper mounting seat 412 in a counterclockwise circumferential direction. The arrangement of the carbon deposit scraper 413 can clean and scrape off the adsorbed substances on the inner and outer walls of the sample release nozzle 411 when the sample is vaporized and released. At the same time, the combustion-supporting gas, air, and purging gas ejected from the bent diversion pipe 415 and the gas dispersion pipe 416 can automatically drive the scraper mounting seat 412 and the carbon deposit scraper 413 to rotate, thereby cleaning the sample release nozzle 411 simultaneously during combustion and avoiding the phenomenon of carbon deposits on the sample release nozzle 411.

[0169] In a further preferred embodiment of the present invention, such as Figures 15-16 As shown, the coil displacement section 46 includes:

[0170] At least one set of displacement motors 461, the displacement motors 461 being fixedly mounted on the top of the detection combustion chamber 152;

[0171] The displacement worm 462 is fixedly connected to the output end of the displacement motor 461. Two sets of displacement worms 462 are symmetrically arranged. The end of the displacement worm 462 away from the displacement motor 461 is rotatably connected to the detection combustion chamber 152.

[0172] The displacement worm gear 463 is disposed between the two sets of displacement worms 462, and the displacement worm gear 463 meshes with the displacement worm 462 for transmission.

[0173] It should be noted that the displacement motor 461 can be a servo motor. The outer wall of the displacement motor 461 is fitted with a heat insulation cover. There are two sets of displacement motors 461, which are arranged diagonally or crosswise on the top of the detection combustion chamber 152. The output end of the displacement motor 461 is fixedly connected to the displacement worm gear 462 by an interference fit. The two sides of the displacement worm wheel 463 are respectively engaged with the two sets of displacement worm gears 462 for transmission.

[0174] A displacement coupling 464 is fixedly connected to the displacement worm gear 463, and a second gear 465 is fixedly connected to the end of the displacement coupling 464 away from the displacement worm gear 463.

[0175] A second gear seat 466 is sleeved on the outside of the second gear 465, and the second gear seat 466 meshes with the second gear 465 for transmission.

[0176] A gear seat positioning seat 467 is slidably sleeved on the outer wall of the second gear seat 466. The gear seat positioning seat 467 is used to guide and limit the second gear seat 466. The gear seat positioning seat 467 is fixedly installed on the coupling sleeve 469. The coupling sleeve 469 is rotatably installed on the outer wall of the displacement coupling shaft 464.

[0177] A coil support 468 is fixedly connected to a second toothed seat 466, and an ignition coil 45 is installed inside the coil support 468.

[0178] In this embodiment, the displacement coupling 464 is fixedly connected to the second gear 465 by plugging or tenoning. A rack is provided on one side of the inner wall of the second gear seat 466. The second gear seat 466 is slidably connected to the gear seat positioning seat 467. The coupling sleeve 469 is fixedly connected to the gear seat positioning seat 467 by welding or snapping. The coupling sleeve 469 is rotatably connected to the displacement coupling 464 by bearings or rollers. The coil support seat 468 is fixedly connected to the ignition coil 45 by snapping or tenoning.

[0179] When the position of the ignition coil 45 needs to be adjusted, the two sets of displacement motors 461 are turned on. The displacement motors 461 rotate in the same direction, which in turn causes the displacement worm gear 462 to rotate in the same direction. At this time, the displacement worm wheel 463 does not rotate. The displacement worm gear 462 can drive the displacement worm wheel 463, the displacement connecting shaft 464, the second gear seat 466, the gear seat positioning seat 467, and the ignition coil 45 to move synchronously, thereby realizing the movement of the position of the ignition coil 45. When the two sets of displacement motors 461 are controlled to move in opposite directions, the displacement worm gear 462 rotates in the opposite direction. At this time, the displacement worm wheel 463 rotates, which drives the displacement connecting shaft 464 and the second gear 465 to rotate. The second gear 465 drives the second gear seat 466 to move along the gear seat positioning seat 467, thereby realizing further adjustment of the position of the ignition coil 45, which helps to improve the ignition success rate.

[0180] In summary, this invention provides a detection device for 2-fluoro-6-aminotoluene compounds. When detecting a sample, the liquid sample enters the injection chamber 11. Then, the linkage motor 21, adjustable preheating unit 31, homogenizing resistance wire 32, and heat-insulating resistance wire 33 are activated. The linkage motor 21 drives the synchronous drive unit 22 to move. The synchronous drive unit 22 synchronously drives the linkage limiting unit 23 and the preheating adjustment unit 24 to start. The preheating adjustment unit 24 drives the adjustable preheating unit 31 to move up and down along the outer wall of the injection chamber 11, thus achieving uniform preheating of the sample in the injection chamber 11. The synchronous drive unit 22 and the linkage limiting unit 23 work together to synchronously drive the vaporization chamber 12 to move up and down while simultaneously rotating back and forth, ensuring the sample vaporization speed and uniformity. The vaporized sample enters the chromatographic column chamber 14 through the gas guide tube 13 to achieve sample component separation. Then, the separated vaporized sample enters the detector 15, where it undergoes combustion detection, completing the rapid detection of the sample.

[0181] In this embodiment of the invention, a vaporization chamber 12, a synchronous drive unit 22, and a linkage limiting unit 23 are provided. The synchronous drive unit 22 and the linkage limiting unit 23 work together to synchronously drive the vaporization chamber 12 to move up and down while reciprocating, ensuring the sample vaporization speed and uniformity. This overcomes the problem in existing liquid vaporization devices where, when the vaporization tube assembly and heating device heat the sample for vaporization, high-viscosity or low-volatility samples easily form droplets or films in the vaporization tube assembly, adsorbing onto the inner wall of the vaporization tube assembly. At the same time, the structure of the vaporization tube assembly and heating device cannot avoid the problem of sample component diversion discrimination caused by uneven temperature distribution.

[0182] It should be noted that, for the sake of simplicity, the foregoing embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0183] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of the present invention according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of the present invention. These technical solutions also fall within the scope of protection of the present invention.

Claims

1. A detection device for 2-fluoro-6-aminotoluene compounds, the detection device comprising: The detection body (1) includes an injection chamber (11), a vaporization chamber (12), a chromatographic column chamber (14), and a detector (15). The injection chamber (11) is connected to the vaporization chamber (12), the vaporization chamber (12) is connected to the chromatographic column chamber (14) through a gas delivery tube (13), and the chromatographic column chamber (14) is connected to the detector (15). A heating vaporization mechanism (3) is used to assist in heating the sample. The heating vaporization mechanism (3) includes an adjustable preheating part (31), a uniform heating resistance wire (32), and a heat-preserving resistance wire (33). The uniform heating resistance wire (32) and the heat-preserving resistance wire (33) are installed in the vaporization chamber (12). The adjustable preheating part (31) is slidably sleeved on the outer wall of the sample injection chamber (11). A linkage adjustment mechanism (2) is provided on the detection base (17). The linkage adjustment mechanism (2) is used to synchronously drive the gasification chamber (12) and the adjustable preheating section (31). The linkage adjustment mechanism (2) includes: A linkage motor (21) is fixedly mounted on the detection base (17); A synchronous drive unit (22) is fixedly connected to the output end of the linkage motor (21). The synchronous drive unit (22) is used to drive the gasification chamber (12) to rotate and assist in uniformly heating the sample. A linkage limiting part (23) is disposed on the detection base (17). The linkage limiting part (23) is connected to the synchronous drive part (22). The linkage limiting part (23) is used to limit the gasification chamber (12) and synchronously drive the gasification chamber (12) to rotate. A preheating adjustment unit (24) is connected to the synchronous drive unit (22), and the preheating adjustment unit (24) is connected to the adjustable preheating unit (31). The preheating adjustment unit (24) is used to synchronously adjust the position of the adjustable preheating unit (31).

2. The 2-fluoro-6-aminotoluene compound detection device of claim 1, wherein: The adjustable preheating section (31) includes: An adjustable heat shield (311) is slidably sleeved on the outer wall of the sample inlet chamber (11) and is connected to the preheating adjustment unit (24). The preheating resistance wire (312) is embedded in the adjustable heat shield (311) and is used to preheat the sample in the sample inlet chamber (11).

3. The 2-fluoro-6-aminotoluene compound detection device of claim 1, wherein: The vaporization chamber (12) includes: The vaporization insulation seat (121) is hollow inside, and the bottom of the vaporization insulation seat (121) is connected to the linkage limiting part (23). A vaporization heat insulation plate (127) is fixedly embedded in a vaporization heat insulation seat (121). The vaporization heat insulation plate (127) divides the vaporization heat insulation seat (121) into a uniform heating chamber (123) and a sample heat insulation chamber (124). A uniform heating resistance wire (32) is fixedly installed in the uniform heating chamber (123), and a heat insulation resistance wire (33) is fixedly installed in the sample heat insulation chamber (124). The vaporization heating tube (122) is rotatably installed in the vaporization insulation base (121). The top of the vaporization heating tube (122) is rotatably connected to the sample injection chamber (11) through the liquid guide tube (111). The liquid guide tube (111) is fixedly installed at the bottom of the sample injection chamber (11). Anti-clogging exhaust pipe (125) is fixedly installed at the bottom of vaporization heat preservation seat (121). The anti-clogging exhaust pipe (125) is used to accelerate the discharge of the vaporized sample. One end of the anti-clogging exhaust pipe (125) is fixedly connected to the gas guide pipe (13). A spiral discrete seat (126) is fixedly installed inside the anti-clogging exhaust pipe (125).

4. The 2-fluoro-6-aminotoluene compound detection device of claim 3, wherein: The synchronous drive unit (22) includes: A drive wheel (221) is rotatably mounted on a detection base (17), and one side of the drive wheel (221) is fixedly connected to the output end of a linkage motor (21). A driven wheel (222) is rotatably mounted on the detection base (17). The driven wheel (222) is rotatably connected to the drive wheel (221) via a conveyor belt. One side of the driven wheel (222) is connected to the preheating adjustment unit (24). A synchronous drive shaft (227) is fixedly connected to the other side of the driven wheel (222); At least one set of synchronous actuating rods (228) are fixedly mounted on the synchronous drive shaft (227) and the synchronous actuating rods (228) are used to actuate the linkage limiting part (23) to move; At least one set of arc-shaped stop seats (229) are provided for limiting and stopping the linkage limiting part (23); A rotating shaft (223) is fixedly mounted on a drive rotating wheel (221), and a drive swing arm (224) is fixedly mounted on the end of the rotating shaft (223) away from the drive rotating wheel (221); The drive hinge seat (225) is slidably connected to the drive swing arm (224), and The synchronous lifting seat (226) is rotatably connected to the top of the drive hinge seat (225) on one side. The end of the synchronous lifting seat (226) away from the detection base (17) passes through the linkage limiting part (23) and is fixedly connected to the gasification support seat (234).

5. The 2-fluoro-6-aminotoluene compound detection device of claim 4, wherein: The linkage limiting part (23) includes: A limiting rotating seat (231) is rotatably connected to a detection base (17), and a synchronous lifting seat (226) passes through the limiting rotating seat (231) and is slidably connected to the limiting rotating seat (231). At least one set of oblique linkage grooves (233) are provided, which are intersected on the side wall of the limiting rotating seat (231), and the oblique linkage grooves (233) are slidably connected to the synchronous actuating rod (228); At least one set of stop guide grooves (232) are provided at the upper and lower ends of the limiting rotating seat (231), and the stop guide grooves (232) are slidably connected to the arc-shaped stop seat (229).

6. The 2-fluoro-6-aminotoluene compound detection device as described in claim 4, characterized in that: The preheating regulating unit (24) includes: The first gear (241) is fixedly connected to the driven wheel (222); A first gear seat (242) is sleeved on the first gear (241), the first gear seat (242) meshes with the first gear (241), and the first gear seat (242) is slidably connected to the detection base (17); The preheating linkage seat (244) is hollow inside. A preheating limiting block (243) is slidably embedded inside the preheating linkage seat (244). The preheating limiting block (243) is fixedly installed on the detection base (17). The upper and lower ends of the preheating linkage seat (244) are fixedly connected to the adjustable heat insulation cover (311) and the first tooth seat (242) respectively.

7. The detection device for 2-fluoro-6-aminotoluene compounds as described in any one of claims 2-6, characterized in that: The detector (15) includes: A detection cover (151) is provided, and a detection combustion chamber (152) is provided inside the detection cover (151); The detection function component (4) is disposed in the detection combustion chamber (152) and is used to perform combustion ionization detection on the gasified sample. The detection function component (4) includes: The anti-carbon deposit nozzle (41) is disposed in the detection combustion chamber (152) and is connected to the chromatographic column chamber (14); The detection anode (42) is fixedly sleeved on the outer wall of the anti-carbon deposit nozzle (41); An auxiliary cathode (43) is provided in cooperation with the detection anode (42) and is fitted in the middle of the detection combustion chamber (152).

8. The 2-fluoro-6-aminotoluene compound detection device as described in claim 7, characterized in that: The detection function component (4) also includes: Ignition coil (45), which is disposed in the detection combustion chamber (152), is used to perform sample ignition; An electron collecting electrode (44) is fixedly embedded in the detection combustion chamber (152), the electron collecting electrode (44) being used to collect electrons; The coil displacement part (46) is disposed on the top of the detection combustion chamber (152). The coil displacement part (46) is connected to the ignition coil (45) and is used to adjust the ignition position of the ignition coil (45).

9. The 2-fluoro-6-aminotoluene compound detection device as described in claim 7, characterized in that: The anti-carbon deposit nozzle (41) includes: A sample release nozzle (411) is fixedly installed at the bottom of the detection combustion chamber (152); Rotate the scraper mount (412) mounted on top of the sample release nozzle (411); At least one set of carbon deposit scrapers (413) are fixedly installed in the scraper mounting base (412) and the carbon deposit scrapers (413) are slidably connected to the inner wall of the sample release nozzle (411). A gas mixing and equalization tube (414) is sleeved on the bottom of the sample release nozzle (411); At least one set of bent diverter pipes (415) are fixedly installed on the gas mixing pipe (414), and the top of the bent diverter pipe (415) is fixedly connected to a gas dispersing pipe (416).

10. The 2-fluoro-6-aminotoluene compound detection device as described in claim 8, characterized in that: The coil displacement section (46) includes: At least one set of displacement motors (461) are fixedly mounted on the top of the detection combustion chamber (152); The displacement worm (462) is fixedly connected to the output end of the displacement motor (461). Two sets of displacement worms (462) are symmetrically arranged. The end of the displacement worm (462) away from the displacement motor (461) is rotatably connected to the detection combustion chamber (152). A displacement worm gear (463) is disposed between two sets of displacement worms (462), and the displacement worm gear (463) meshes with the displacement worm (462) for transmission. A displacement coupling shaft (464) is fixedly connected to the displacement worm gear (463), and a second gear (465) is fixedly connected to the end of the displacement coupling shaft (464) away from the displacement worm gear (463); A second gear seat (466) is sleeved on the outside of the second gear (465), and the second gear seat (466) meshes with the second gear (465) for transmission; A gear seat positioning seat (467) is slidably sleeved on the outer wall of the second gear seat (466). The gear seat positioning seat (467) is used to guide and limit the second gear seat (466). The gear seat positioning seat (467) is fixedly installed on the coupling sleeve (469). The coupling sleeve (469) is rotatably installed on the outer wall of the displacement coupling shaft (464). A coil support (468) is fixedly connected to a second toothed seat (466), and an ignition coil (45) is installed inside the coil support (468).

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