阅读说明：本技术 Fid检测器 (FID detector ) 是由 宋大勇 王琳 杨普 于 2021-08-23 设计创作，主要内容包括：本发明涉及FID检测器技术领域,具体为FID检测器,包括FID底座和FID外壳,所述FID底座的底端内嵌安装有主孔接头和两个进气接头,所述FID底座的顶端表面开设有三个插孔。本发明中,通过两个进气接头外接气源,混合气体进入FID外壳的内部,在三个高精密连接管线的作用力下,顶部的高压电压装置、气体压力传感器固定装置、绝缘层、高压信号收集器和连接零件之间紧密贴合,此时使用点火丝点火,内部混合气体燃烧,气体压力传感器固定装置中的气体压力传感器获取实验数据,在点火时,检测机构中的连接零件向下位移,使得密封圈闭合底部的通气槽,实现即时止火,底部的连接零件和密封圈组成活动止火阀门,结构设计巧妙,空间利用率较高,整个装置体积较小。(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 joint and two air inlet joints are embedded in the bottom end of the FID base, and three jacks are formed in the surface of the top end of the FID base. According to the invention, the two air inlet connectors are externally connected with the air source, the 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, at the moment, the ignition wire is used for ignition, the internal mixed gas is combusted, the gas pressure sensor in the gas pressure sensor fixing device acquires experimental data, during ignition, the connecting parts in the detection mechanism displace downwards, so that the sealing ring closes the vent groove at the bottom, instant fire stopping is realized, the connecting parts at the bottom and the sealing ring form the movable fire stopping valve, the structure design is ingenious, the space utilization rate is higher, and the whole device is smaller in size.)

An FID detector comprising an FID base (14) and an FID housing (6), characterized in that: 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 surface of the top end of the FID base (14), and high-precision connecting pipelines (19) are placed in the three jacks;

and a check mechanism is installed at the top end of the FID base (14).

2. The FID detector of claim 1, wherein: non return mechanism includes high voltage device (11), gas pressure sensor fixing device (3), high-pressure signal collector (12), insulating layer (8) and three bolts (15), three bolt (15) top-down is movable to run through in proper order and installs high voltage device (11), gas pressure sensor fixing device (3), insulating layer (8), high-pressure signal collector (12), connecting part (9) and sealing washer (5), three the top fixed mounting of bolt (15) has ignition silk gland (17), three the equal fixed mounting in the top of FID base (14) in bottom of bolt (15), be equipped with the scarce groove on sealing washer (5).

3. The FID detector of claim 1, wherein: the non-return mechanism is located inside the FID housing (6).

4. The FID detector of claim 1, wherein: FID base (14) and FID shell (6) threaded connection, FID upper cover (13) are installed to the top thread of FID shell (6), sealing assembly is installed with the junction of FID upper cover (13) in FID shell (6).

5. FID detector according to claim 4, characterized in that: and an insulating gasket (7) is arranged between the bottom end surface of the FID shell (6) and the FID base (14).

6. The FID detector of claim 2, wherein: install two first ignition silk terminals (2) and second ignition silk terminal (4) on connecting element (9), terminal (18) are installed to the position that connecting element (9) are close to two first ignition silk terminals (2) and second ignition silk terminal (4).

7. The FID detector of claim 1, wherein: and vent grooves are formed in the positions, close to the two air inlet connectors (1), in the FID base (14).

8. The FID detector of claim 2, wherein: the top end surface of the sealing ring (5) is fixedly connected with the bottom surface of the connecting part (9).

Technical Field

The invention relates to the technical field of FID detectors, in particular to an FID detector.

Background

FID, a flame ionization detector, is a high sensitivity, universal detector that responds to almost all organic substances, but to inorganic substances, inert gases, or non-dissociated substances in the flame, and so on, with little or no response. The sensitivity of FID is 100-10000 times higher than that of a thermal conductivity detector, the detection limit reaches 10-13g/s, the FID is not sensitive to temperature and quick in response, is suitable for being connected with an open tubular column to separate complex samples, has the linear range of 7 th power of 10, is the best means for detecting hydrocarbons in a gas chromatography detector, and is widely used for detecting volatile hydrocarbons and a plurality of carbon-containing compounds.

The existing FID detector does not have an explosion-proof function, residual gas still exists in the gas inlet pipe during internal ignition, tempering can be caused, accidents occur easily, the existing FID detector is large in relative volume, the structural design is not ingenious enough, and the space utilization rate is not high.

Disclosure of Invention

It is an object of the present invention to provide a FID detector to solve the problems set forth in the background above. In order to achieve the purpose, the invention provides the following technical scheme: FID detector, including FID base and FID shell, the embedded main entrance joint and two air inlet joint of installing in bottom of FID base, three jack has been seted up on the top surface of FID base, and is three high-accuracy connecting line has all been placed in the jack.

And the top end of the FID base is provided with a check mechanism.

Preferably, the non return mechanism includes high voltage device, gas pressure sensor fixing device, high-pressure signal collector, insulating layer and three bolts, three bolt top-down is the activity in proper order and runs through to install high voltage device, gas pressure sensor fixing device, insulating layer, high-pressure signal collector, connecting part and sealing washer, three the top fixed mounting of bolt has ignition wire gland, three the equal fixed mounting in the top of FID base in the bottom of bolt, be equipped with the scarce groove on the sealing washer.

Preferably, the check mechanism is located inside the FID shell, and the check mechanism is located inside the FID shell to save space.

Preferably, the FID base and FID shell threaded connection, the FID upper cover is installed to the top thread of FID shell, seal assembly is installed with the junction of FID upper cover to the FID shell, through setting up the convenient maintenance dismantlement of FID base and FID shell threaded connection, sets up seal assembly and improves inside seal nature.

Preferably, install insulating gasket between the bottom surface of FID shell and the FID base, install insulating gasket through between the bottom surface of FID shell and the FID base and play insulating isolation.

Preferably, connecting element is last to install two first ignition silk terminals and second ignition silk terminal, connecting element installs the terminal near the position of two first ignition silk terminals and second ignition silk terminal, is convenient for connect the power through setting up two first ignition silk terminals and second ignition silk terminal, improves the success rate of igniteing.

Preferably, the inside of FID base all has seted up the air channel near the position of two air inlet joint, through setting up the position of the scarce groove on the sealing washer skew two air channels, can effectively keep apart the air supply when the 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 with 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, at the moment, an ignition wire is used for ignition, the internal mixed gas is combusted, a gas pressure sensor in the gas pressure sensor fixing device acquires experimental data, and during ignition, the connecting parts in a detection mechanism downwards displace, so that a vent groove at the bottom is closed by a sealing ring, and instant fire stopping is realized;

according to the invention, the three bolts are arranged to sequentially and movably penetrate through 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 from top to bottom, the connecting part and the sealing ring at the bottom form the movable fire-stopping valve, the structural design is ingenious, the space utilization rate is high, and the whole device is small in size.

Drawings

FIG. 1 is an exploded view of the present invention;

FIG. 2 is a schematic front view 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 binding post; 3. a gas pressure sensor fixing device; 4. a second ignition wire terminal; 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. an FID upper cover; 14. an FID base; 15. a bolt; 16. a main bore joint; 17. an ignition wire gland; 18. a binding post; 19. high precision connecting the pipeline.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a technical solution: FID detector, including FID base 14 and FID shell 6, the embedded main hole joint 16 and two air inlet joint 1 of installing in the bottom of FID base 14, three jack has been seted up on the top surface of FID base 14, has all placed high-accuracy connecting line 19 in the three jack.

The top end of the FID base 14 is fitted with a non-return mechanism.

In this embodiment, as shown in fig. 1 and fig. 3, the non-return 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, where the three bolts 15 sequentially and movably penetrate from top to bottom 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, the top ends of the three bolts 15 are fixedly installed with an ignition wire pressing cover 17, the bottom ends of the three bolts 15 are all fixedly installed on the top end 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, fig. 2, fig. 3 and fig. 4, FID base 14 and FID shell 6 threaded connection, FID upper cover 13 is installed to the top thread of FID shell 6, and seal assembly is installed to the junction of FID shell 6 and FID upper cover 13, through setting up FID base 14 and FID shell 6 threaded connection convenient maintenance dismantlement, sets up seal assembly and improves inside leakproofness.

In this embodiment, as shown in fig. 1, 2, 3, and 4, an insulating spacer 7 is installed between the bottom end surface of the FID case 6 and the FID base 14, and the insulating spacer 7 is installed between the bottom end surface of the FID case 6 and the FID base 14 to perform an insulating and isolating function.

In this embodiment, as shown in fig. 1 and 3, two first ignition wire posts 2 and two second ignition wire posts 4 are mounted on the connecting part 9, a post 18 is mounted at a position of the connecting part 9 close to the two first ignition wire posts 2 and the two second ignition wire posts 4, and the two first ignition wire posts 2 and the two second ignition wire posts 4 are arranged to facilitate connection of a power supply, thereby improving the success rate of ignition.

In this embodiment, as shown in fig. 1 and 3, vent grooves are formed in the positions, close to the two air inlet connectors 1, inside the FID base 14, and the positions of the two vent grooves are deviated from the positions of the notch grooves formed in the sealing ring 5, so that an air source can be effectively isolated during non-return.

In this embodiment, as shown in fig. 1 and 3, the top end surface of the seal ring 5 is fixedly connected to the bottom surface of the connecting part 9, and the top end surface of the seal ring 5 is fixedly connected to the bottom surface of the connecting part 9 to form a seal piston, thereby improving the sealing performance.

The use 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 figures 1, 2, 3 and 4, when the electric appliance component is used, a power supply and a control switch are externally connected, when the electric appliance component is used, an air source is externally connected through two air 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, the internal mixed gas is combusted, a gas pressure sensor in the gas pressure sensor fixing device 3 acquires experimental data, and when the gas is ignited, a connecting part 9 in a detection mechanism moves downwards, so that a vent groove at the bottom is closed by a sealing ring 5, and instant fire stopping is realized.

The present invention relates to circuits, electronic components and control modules all of which are well within the skill of those in the art and, needless to say, the present invention is not directed to software and process improvements.

The foregoing shows and describes the general principles, essential 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 embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.