CN113671096B - FID detector - Google Patents
FID detector Download PDFInfo
- Publication number
- CN113671096B CN113671096B CN202110969520.3A CN202110969520A CN113671096B CN 113671096 B CN113671096 B CN 113671096B CN 202110969520 A CN202110969520 A CN 202110969520A CN 113671096 B CN113671096 B CN 113671096B
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- fid
- base
- shell
- pressure sensor
- sealing ring
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- 238000007789 sealing Methods 0.000 claims abstract description 29
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 238000009423 ventilation Methods 0.000 claims abstract description 9
- 210000004907 gland Anatomy 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 8
- 230000009471 action Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 20
- 238000000034 method Methods 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/62—Detectors specially adapted therefor
- G01N30/64—Electrical detectors
- G01N30/68—Flame ionisation detectors
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
The invention relates to the technical field of FID detectors, in particular to an FID detector which comprises an FID base and an FID shell, wherein a main hole connector and two air inlet connectors are embedded in the bottom end of the FID base, and three jacks are formed in the top end surface of the FID base. According to the invention, an air source is externally connected through the two air inlet connectors, mixed gas enters the interior of the FID shell, under the action force of three high-precision connecting pipelines, the high-voltage device at the top, the gas pressure sensor fixing device, the insulating layer, the high-voltage signal collector and the connecting parts are tightly attached, an ignition wire is used for ignition at the moment, the internal mixed gas burns, the gas pressure sensor in the gas pressure sensor fixing device acquires experimental data, and when the ignition is performed, the connecting parts in the detection mechanism displace downwards, so that the sealing ring closes the ventilation groove at the bottom to realize instant fire stopping, the connecting parts at the bottom and the sealing ring form a movable fire stopping valve, the structural design is ingenious, the space utilization rate is higher, and the whole device is small.
Description
Technical Field
The invention relates to the technical field of FID detectors, in particular to a FID detector.
Background
FID, a flame ionization detector, is a high sensitivity universal detector that responds to almost all organics, but not or only very little to inorganics, inert gases, or substances that do not dissociate in the flame. The sensitivity of the FID is 100-10000 times higher than that of the thermal conductivity detector, the detection limit is 10-13g/s, the detection is insensitive to temperature, the response is quick, the detection device is suitable for connecting a pipe column to separate complex samples, the linear range is 7 times of that of the detection device, and the detection device is a means with the best sensitivity to hydrocarbons in a gas chromatograph and is widely used for detecting volatile hydrocarbon compounds and a plurality of carbon-containing compounds.
The existing FID detector does not have an explosion-proof function, residual gas still exists in the air inlet pipe during internal ignition, tempering is caused, accidents are easy to occur, the existing FID detector is relatively large in size, structural design is not ingenious enough, and space utilization rate is not high.
Disclosure of Invention
The present invention is directed to a FID detector that solves the above-mentioned problems. In order to achieve the above purpose, the present invention provides the following technical solutions: the FID detector comprises an FID base and an FID shell, wherein a main hole connector and two air inlet connectors are embedded in the bottom end of the FID base, three jacks are formed in the top end surface of the FID base, and high-precision connecting pipelines are arranged in the three jacks.
The top of the FID base is provided with a non-return mechanism.
Preferably, the check mechanism comprises a high-voltage device, a gas pressure sensor fixing device, a high-voltage signal collector, an insulating layer and three bolts, wherein three bolts sequentially pass through the high-voltage device, the gas pressure sensor fixing device, the insulating layer, the high-voltage signal collector, a connecting part and a sealing ring from top to bottom, the top ends of the three bolts are fixedly provided with ignition wire pressing covers, the bottom ends of the three bolts are fixedly arranged at the top ends of the FID base, and a notch is formed in the sealing ring.
Preferably, the check mechanism is located inside the FID housing, and space is saved by providing the check mechanism inside the FID housing.
Preferably, the FID base is in threaded connection with the FID shell, the FID upper cover is installed on the top thread of the FID shell, the sealing component is installed at the joint of the FID shell and the FID upper cover, the maintenance and the disassembly are convenient through the arrangement of the FID base and the threaded connection of the FID shell, and the internal sealing performance is improved through the arrangement of the sealing component.
Preferably, an insulating gasket is installed between the bottom end surface of the FID shell and the FID base, and an insulating isolation effect is achieved by installing the insulating gasket between the bottom end surface of the FID shell and the FID base.
Preferably, the connecting part is provided with two first ignition wire binding posts and two second ignition wire binding posts, the connecting part is provided with binding posts near the positions of the two first ignition wire binding posts and the two second ignition wire binding posts, and the connecting part is convenient for connecting a power supply by arranging the two first ignition wire binding posts and the two second ignition wire binding posts, so that the ignition success rate is improved.
Preferably, the positions, close to the two air inlet connectors, of the inner part of the FID base are provided with ventilation grooves, and the positions of the ventilation grooves are deviated from the positions of the two ventilation grooves by arranging the grooves on the sealing ring, so that an air source can be effectively isolated during non-return.
Preferably, the top end surface of the sealing ring is fixedly connected with the bottom surface of the connecting part, and the sealing piston is formed by fixedly connecting the top end surface of the sealing ring with the bottom surface of the connecting part, so that the sealing performance is improved.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, an air source is externally connected through two air inlet connectors, mixed gas enters the interior of the FID shell, under the action force of three high-precision connecting pipelines, a high-voltage device at the top, a gas pressure sensor fixing device, an insulating layer, a high-voltage signal collector and connecting parts are tightly attached, an ignition wire is used for ignition at the moment, the internal mixed gas burns, a gas pressure sensor in the gas pressure sensor fixing device acquires experimental data, and when the ignition is performed, the connecting parts in a detection mechanism are displaced downwards, so that a ventilation groove at the bottom is closed by a sealing ring, and instant fire stopping is realized;
according to the invention, the high-voltage device, the gas pressure sensor fixing device, the insulating layer, the high-voltage signal collector, the connecting part and the sealing ring are movably arranged from top to bottom by arranging three bolts in sequence, so that the movable fire stopping valve is formed by the connecting part and the sealing ring at the bottom, the structural design is ingenious, the space utilization rate is higher, and the whole device is small in volume.
Drawings
FIG. 1 is an exploded view of the present invention;
FIG. 2 is a schematic diagram of a front view structure of the present invention;
FIG. 3 is an exploded view of the present invention;
fig. 4 is a perspective view of the present invention.
In the figure: 1. an air inlet joint; 2. a first ignition wire terminal; 3. a gas pressure sensor fixing device; 4. a second firing wire post; 5. a seal ring; 6. a FID housing; 7. an insulating spacer; 8. an insulating layer; 9. a connecting part; 10. an ignition wire; 11. a high voltage device; 12. a high voltage signal collector; 13. a FID upper cover; 14. a FID base; 15. a bolt; 16. a main bore joint; 17. an ignition wire gland; 18. binding posts; 19. high-precision connecting pipelines.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which are obtained by a worker of ordinary skill in the art without creative efforts, are within the protection scope of the present invention based on the embodiments of the present invention.
Referring to fig. 1 to 4, the present invention provides a technical solution: the FID detector comprises an FID base 14 and an FID shell 6, wherein a main hole joint 16 and two air inlet joints 1 are embedded in the bottom end of the FID base 14, three jacks are formed in the top end surface of the FID base 14, and high-precision connecting pipelines 19 are arranged in the three jacks.
The top end of the FID bed 14 is fitted with a non-return mechanism.
In this embodiment, as shown in fig. 1 and 3, the check mechanism includes a high-voltage device 11, a gas pressure sensor fixing device 3, a high-voltage signal collector 12, an insulating layer 8 and three bolts 15, the three bolts 15 movably penetrate through and install the high-voltage device 11, the gas pressure sensor fixing device 3, the insulating layer 8, the high-voltage signal collector 12, the connecting part 9 and the sealing ring 5 from top to bottom in sequence, the top ends of the three bolts 15 are fixedly provided with ignition wire pressing covers 17, the bottom ends of the three bolts 15 are fixedly provided with notches at the top ends of the FID base 14, and the sealing ring 5 is provided with a notch.
In the present embodiment, as shown in fig. 1, 2, 3 and 4, the check mechanism is located inside the FID housing 6, and space is saved by providing the check mechanism inside the FID housing 6.
In this embodiment, as shown in fig. 1, 2, 3 and 4, the FID base 14 is in threaded connection with the FID housing 6, the FID upper cover 13 is mounted on the top end thread of the FID housing 6, the sealing component is mounted at the connection part of the FID housing 6 and the FID upper cover 13, and the sealing component is arranged to improve the internal tightness by arranging the FID base 14 to be in threaded connection with the FID housing 6 for convenient maintenance and disassembly.
In this embodiment, as shown in fig. 1, 2, 3 and 4, an insulating spacer 7 is installed between the bottom surface of the FID housing 6 and the FID base 14, and an insulating spacer 7 is installed between the bottom surface of the FID housing 6 and the FID base 14 to perform an insulating function.
In this embodiment, as shown in fig. 1 and 3, two first ignition wire binding posts 2 and two second ignition wire binding posts 4 are installed on the connection part 9, and binding posts 18 are installed at positions of the connection part 9 close to the two first ignition wire binding posts 2 and the two second ignition wire binding posts 4, so that the connection of the power supply is facilitated by arranging the two first ignition wire binding posts 2 and the two second ignition wire binding posts 4, and the ignition success rate is improved.
In this embodiment, as shown in fig. 1 and 3, the positions, close to the two air inlet connectors 1, inside the FID base 14 are provided with ventilation grooves, and the positions of the grooves on the sealing ring 5 deviate from the positions of the two ventilation grooves, so that the air source can be effectively isolated during non-return.
In this embodiment, as shown in fig. 1 and 3, the top surface of the sealing ring 5 is fixedly connected with the bottom surface of the connecting part 9, and the sealing piston is formed by fixedly connecting the top surface of the sealing ring 5 with the bottom surface of the connecting part 9, so that the sealing performance is improved.
The application method and the advantages of the invention are as follows: when the FID detector is used, the working process is as follows:
as shown in fig. 1, fig. 2, fig. 3 and fig. 4, when the electric appliance element is in use, a power supply and a control switch are externally connected, when in use, a gas source is externally connected through two gas inlet connectors 1, mixed gas enters the interior of an FID shell 6, under the action force of three high-precision connecting pipelines 19, a high-voltage device 11 at the top, a gas pressure sensor fixing device 3, an insulating layer 8, a high-voltage signal collector 12 and a connecting part 9 are tightly attached, at the moment, an ignition wire 10 is used for ignition, internal mixed gas is combusted, a gas pressure sensor in the gas pressure sensor fixing device 3 acquires experimental data, and when in ignition, the connecting part 9 in a detection mechanism is downwards displaced, so that a ventilation groove at the bottom of a sealing ring 5 is closed, instant fire stopping is realized, the structural design is ingenious, the space utilization rate is higher, and the whole device is small in volume.
The circuit, the electronic components and the control module are all in the prior art, and can be completely realized by a person skilled in the art, and needless to say, the protection of the invention does not relate to the improvement of software and a method.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
- FID detector, comprising a FID base (14) and a FID housing (6), characterized in that: the bottom end of the FID base (14) is internally provided with a main hole joint (16) and two air inlet joints (1), the top end surface of the FID base (14) is provided with three jacks, and high-precision connecting pipelines (19) are respectively arranged in the three jacks;the top end of the FID base (14) is provided with a non-return mechanism;the check mechanism comprises a high-voltage device (11), a gas pressure sensor fixing device (3), a high-voltage signal collector (12), an insulating layer (8) and three bolts (15), wherein the three bolts (15) sequentially penetrate through the high-voltage device (11), the gas pressure sensor fixing device (3), the insulating layer (8), the high-voltage signal collector (12), a connecting part (9) and a sealing ring (5) from top to bottom, an ignition wire gland (17) is fixedly arranged at the top ends of the three bolts (15), the bottom ends of the three bolts (15) are fixedly arranged at the top ends of an FID base (14), and a notch is formed in the sealing ring (5);two first ignition wire binding posts (2) and two second ignition wire binding posts (4) are arranged on the connecting part (9), and binding posts (18) are arranged at positions, close to the two first ignition wire binding posts (2) and the two second ignition wire binding posts (4), of the connecting part (9);the top end surface of the sealing ring (5) is fixedly connected with the bottom surface of the connecting part (9).
- 2. The FID detector according to claim 1, wherein: the non-return mechanism is located inside the FID housing (6).
- 3. The FID detector according to claim 1, wherein: the FID base (14) is in threaded connection with the FID shell (6), an FID upper cover (13) is installed on the top end of the FID shell (6) in a threaded mode, and a sealing assembly is installed at the joint of the FID shell (6) and the FID upper cover (13).
- 4. The FID detector according to claim 3, wherein: an insulating gasket (7) is arranged between the bottom end surface of the FID shell (6) and the FID base (14).
- 5. The FID detector according to claim 1, wherein: the positions, close to the two air inlet connectors (1), inside the FID base (14) are provided with ventilation grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110969520.3A CN113671096B (en) | 2021-08-23 | 2021-08-23 | FID detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110969520.3A CN113671096B (en) | 2021-08-23 | 2021-08-23 | FID detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113671096A CN113671096A (en) | 2021-11-19 |
| CN113671096B true CN113671096B (en) | 2024-03-15 |
Family
ID=78545313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110969520.3A Active CN113671096B (en) | 2021-08-23 | 2021-08-23 | FID detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113671096B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4355970A (en) * | 1977-02-23 | 1982-10-26 | Sekisui Kagaku Kogyo Kabushiki Kaisha | Pressure responsive safety valve for gas burner |
| JPH05321747A (en) * | 1992-05-20 | 1993-12-07 | Toyota Motor Corp | Abnormality judging device of combustion pressure sensor |
| US6171098B1 (en) * | 1999-01-13 | 2001-01-09 | Monte W. Meyer | Rodent exterminating apparatus |
| US6238622B1 (en) * | 1997-12-05 | 2001-05-29 | Rosemount Analytical Inc. | Flame ionization detector |
| JP2003207107A (en) * | 2002-01-18 | 2003-07-25 | Kb Entec Co Ltd | Blown gas combustion burner |
| CN211292744U (en) * | 2019-07-29 | 2020-08-18 | 山东惠分仪器有限公司 | Novel hydrogen flame ionization detector |
| CN212255219U (en) * | 2020-07-05 | 2020-12-29 | 上海诺禹测试技术有限公司 | Explosion-proof FID detection device |
| CN212748830U (en) * | 2020-07-10 | 2021-03-19 | 青岛众瑞智能仪器有限公司 | FID detector |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100172796A1 (en) * | 2008-11-26 | 2010-07-08 | James Norgaard | Metal hydride storage system for a portable, intrinsically safe, flame ionization detector (FID) device |
-
2021
- 2021-08-23 CN CN202110969520.3A patent/CN113671096B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4355970A (en) * | 1977-02-23 | 1982-10-26 | Sekisui Kagaku Kogyo Kabushiki Kaisha | Pressure responsive safety valve for gas burner |
| JPH05321747A (en) * | 1992-05-20 | 1993-12-07 | Toyota Motor Corp | Abnormality judging device of combustion pressure sensor |
| US6238622B1 (en) * | 1997-12-05 | 2001-05-29 | Rosemount Analytical Inc. | Flame ionization detector |
| US6171098B1 (en) * | 1999-01-13 | 2001-01-09 | Monte W. Meyer | Rodent exterminating apparatus |
| JP2003207107A (en) * | 2002-01-18 | 2003-07-25 | Kb Entec Co Ltd | Blown gas combustion burner |
| CN211292744U (en) * | 2019-07-29 | 2020-08-18 | 山东惠分仪器有限公司 | Novel hydrogen flame ionization detector |
| CN212255219U (en) * | 2020-07-05 | 2020-12-29 | 上海诺禹测试技术有限公司 | Explosion-proof FID detection device |
| CN212748830U (en) * | 2020-07-10 | 2021-03-19 | 青岛众瑞智能仪器有限公司 | FID detector |
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| Publication number | Publication date |
|---|---|
| CN113671096A (en) | 2021-11-19 |
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