CN105203676B - A kind of flame ionization ditector suitable for high pressure-temperature high humidity environment - Google Patents
A kind of flame ionization ditector suitable for high pressure-temperature high humidity environment Download PDFInfo
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- CN105203676B CN105203676B CN201510694654.3A CN201510694654A CN105203676B CN 105203676 B CN105203676 B CN 105203676B CN 201510694654 A CN201510694654 A CN 201510694654A CN 105203676 B CN105203676 B CN 105203676B
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Abstract
The present invention relates to detection device technical field, specifically a kind of flame ionization ditector, mainly solves the use problem of the flame ionization ditector under complex working condition (high pressure, high temperature, high humidity) environmental condition, detector is can be used in complex working condition environment, can especially meet that the normal table under stationary source class working condition uses.The technical solution adopted by the present invention is:A kind of flame ionization ditector suitable for high pressure-temperature high humidity environment, including a detector body, it is characterised in that:The gas outlet of the detector body is provided with malleation component.The malleation component includes sheath gas source of the gas, regulating valve, sheath tracheae and the component separate tube being sequentially communicated by pipeline, docked with the gas outlet of detector body one end of the sheath tracheae, the other end is open, the tube wall of sheath tracheae be hollow structure so as to form the transmission cavity of sheath gas, the component separate tube is distributed across the inwall of sheath tracheae.
Description
Technical field
The present invention relates to detection device technical field, specifically a kind of flame ionization ditector.
Background technology
Flame ionization ditector is laboratory gas chromatograph device often with one of detector.The detector is with hydrogen
Flame with air burning generation be the energy, when organic compound is into the flame of hydrogen and oxygen combustion, is produced at high temperature
Biochemical ionization, ionization produces the ion of several orders of magnitude higher than base flow, under the orientation of high voltage electric field, forms ion
Stream, faint ion stream (10-12~10-8A) are amplified by high resistant, turn into directly proportional to the organic compound amount into flame
Electric signal, according to the size of signal to organic matter carry out quantitative analysis.
As shown in figure 1, organic matter after flame ionization ditector, ultimately generates carbon dioxide and vapor, arranged
Go out system, therefore the outlet of such detector is generally open type design, it is shorter apart from the path of external environment, after making after testing
The carbon dioxide and vapor discharge system of generation.The current analytical instrument equipped with flame ionization ditector is mainly used in
In lab analysis environment, by the use environment of the controller units such as air-conditioning, dehumidification equipment, ambient pressure is generally 1
Atmospheric pressure, temperature control in (5~35) DEG C, relative humidity control in the range of (20~90) %, use environment pressure, temperature and
Damp condition is relatively preferable, and relatively stable.
Used for online analytical instrument in flame ionization ditector, especially stationary source class operating mode, instrument
Operation use environment it is relatively poor, ambient pressure, temperature, humidity relative experimental room are larger.Under such working condition,
Open type flame ionization ditector, pressure, temperature and humidity can be influenceed in by environment, cause system generate steam and
The more difficult discharge system of carbon dioxide, and then cause the extinguishing of hydrogen flame, it have impact on the normal use of detector.
The content of the invention
The purpose of the present invention is to overcome the shortcomings of above-mentioned background technology, there is provided a kind of flame ionization ditector, mainly
Solves the use problem of the flame ionization ditector under complex working condition (high pressure, high temperature, high humidity) environmental condition, by right
Conventional flame ionization ditector is improved, and the detector is can be used in complex working condition environment, can especially be expired
Normal table under sufficient stationary source class working condition uses.
The technical solution adopted by the present invention is:
A kind of flame ionization ditector suitable for high pressure-temperature high humidity environment, including a detector body, its
It is characterised by:The gas outlet of the detector body is provided with malleation component.
Preferably, the malleation component include be sequentially communicated by pipeline sheath gas source of the gas, regulating valve, sheath tracheae and
One component separate tube, one end of the sheath tracheae are docked with the gas outlet of detector body, and the other end is open, and the tube wall of sheath tracheae is
For hollow structure so as to form the transmission cavity of sheath gas, the component separate tube is distributed across the inwall of sheath tracheae.
Preferably, the dispersion pipe is arranged on the inwall of sheath tracheae and tilted towards the open one end of sheath tracheae.
Preferably, the inclination angle of the dispersion pipe is 0~90 degree.
Preferably, offer some ventholes on the tube wall of the dispersion pipe, venthole towards sheath tracheae it is open one
End arrangement.
Preferably, the outer wall of the sheath tracheae is provided with heating component, the heating component is by the outer wall cloth around sheath tracheae
Some heaters composition put.
Preferably, the outer wall of the sheath tracheae is provided with heat insulation module, the heat insulation module includes at least one layer of insulation material,
The outer wall that the insulation material is coated on sheath tracheae is arranged and is wrapped in the heater.
The beneficial effects of the invention are as follows:The present invention devises a hydrogen being used in complex high voltage, high temperature, high humidity environment
Flame ionization detector, the flame ionization ditector outlet using malleation sheath vapour lock every with overall process high-temperature shielding.It is logical
The Curve guide impeller is crossed, detector can effectively shield ambient pressure, temperature, humidity to flame ionization ditector flame
Influence, without the smooth discharge of the carbon dioxide and steam that influence to generate in flame ionization ditector.Malleation sheath gas designs,
By to increasing pressure-fired in flame ionization ditector outlet pipeline, can effectively prevent the superheated vapor in environment
Enter in detector, the normal combustion of flame is had undesirable effect.Sheath atmospheric pressure is controlled by control module, can be adjusted
Detector is satisfied with the requirement of different external environments.Heating and heat insulation module can ensure that the steam of burning generation will not transmit
Condensed in pipeline.
Brief description of the drawings
Fig. 1 is the structural representation of existing flame ionization ditector.
Fig. 2 is the structural representation of the present invention.
Fig. 3 is the mounting structure schematic diagram of dispersion pipe.
Embodiment
The invention will be further described below, but the invention is not limited in following examples.
As shown in Fig. 2 a kind of flame ionization ditector suitable for high pressure-temperature high humidity environment of the present invention,
Including a detector body, the gas outlet 10 of the detector body, which is provided with, prevents the superheated vapor in environment from entering just
Press component.The detector body structure of existing flame ionization ditector shown in the structure and Fig. 1 of the detector body
It is identical, it can be horizontally mounted, also can be vertically-mounted.Detector body includes base 15 and detector cylinder 9, and the one of detector cylinder
End is arranged on base, and the other end is formed with the gas outlet 10, in addition to is arranged on the nozzle 13 of detector inner barrel, igniting
Coil 12, polarization pole 20, collector 11, air duct 18 and air diffuser;The nozzle interior be provided with capillary column 14,
Hydrogen Line 17 and make-up gas pipeline 16, polarization pole 20 are arranged on the outlet of nozzle by insulator 19, and ignition coil passes through
Insulator is arranged on the top of nozzle, and collector is arranged on the top of ignition coil by insulator 19.
The malleation component include be sequentially communicated by pipeline sheath gas source of the gas 1, regulating valve 2, the component of sheath tracheae 3 and one
Separate tube 6, (integrated fabrication design is solid by connector 4 with the gas outlet docking of detector body for one end of the sheath tracheae
Fixed connection), the other end is open, and the tube wall of sheath tracheae is hollow structure so as to forming the transmission cavity 5 of sheath gas.Sheath gas source of the gas can be used
Pure zero level air or inerting gas (nitrogen, helium etc.), can use gas cylinder, can also use corresponding clean gas
Generator.Regulating valve can use mechanical valve or Electron pressure regulating valve, can adjust the pressure of different sheath gas.Sheath tracheae and
Dispersion pipe uses stainless steel, has certain anticorrosive property and heat-resisting quantity.The length of sheath tracheae is according to actual condition
Difference, it may be designed to different length.
The one component separate tube is distributed across the inwall of sheath tracheae.If dispersion pipe can divide dried layer arrange, each layer by
Several dispersion pipes are arranged in a circle, and the dispersion pipe of each layer mutually staggers, or several dispersion pipes of same layer intersect cloth
Put, with specific reference to it needs to be determined that.The dispersion pipe is arranged on the inwall of sheath tracheae and tilted towards one end of opening, such as Fig. 3 institutes
Show, tiltangleθ is 0~90 degree, prevents external pressure from entering, while do not influence detector internal steam and discharge outward.Described point
Some venthole 6-1 are offered on the tube wall of separate tube, venthole is arranged towards the open one end of sheath tracheae so that sheath gas 8 is external
Injection, the convenient sheath gas with certain pressure are disperseed, and increase the diffusingsurface being outwards vented.
To ensure that the steam of burning generation will not condense in transfer conduit, the outer wall of the sheath tracheae is provided with heating
Component, the heating component are made up of (such as heating wire, electric heating piece) some heaters of the outer wall arrangement around sheath tracheae.It is described
The outer wall of sheath tracheae is provided with heat insulation module, and the heat insulation module includes at least one layer of insulation material 7 (conventional insulation material, such as glass
Fiber, asbestos etc.), the outer wall that the insulation material is coated on sheath tracheae is arranged and is wrapped in the heater.
It is of the invention compared with conventional hydrogen flame ion ring detector, complex working condition (high pressure, high temperature, high humidity) ring can be met
Under the conditions of border, long-term continuous operation, solve such current detector, the produced problem under such application environment, be applicable to
The different application pattern such as laboratory, online, portable.
Finally it should be noted that listed above is only specific embodiment of the invention.It is clear that the invention is not restricted to
Above example, there can also be many variations.One of ordinary skill in the art can directly lead from present disclosure
All deformations for going out or associating, are considered as protection scope of the present invention.
Claims (3)
1. a kind of flame ionization ditector suitable for high pressure-temperature high humidity environment, including a detector body, detection
Device main body includes base (15) and detector cylinder (9), and one end of detector cylinder is arranged on base, and the other end is formed with outlet
Mouth (10), it is characterised in that:The gas outlet (10) of the detector body is provided with malleation component;The malleation component includes logical
Sheath gas source of the gas (1), regulating valve (2), sheath tracheae (3) and the component separate tube (6) that piping is sequentially communicated, the sheath tracheae
One end is docked with the gas outlet (10) of detector body, and the other end is open, and the tube wall of sheath tracheae is hollow structure so as to forming sheath
The transmission cavity (5) of gas, the component separate tube are distributed across the inwall of sheath tracheae;The dispersion pipe is arranged on the interior of sheath tracheae
Wall simultaneously tilts towards the open one end of sheath tracheae;Some ventholes (6-1), venthole court are offered on the tube wall of the dispersion pipe
The open one end arrangement of sheath tracheae;The outer wall of the sheath tracheae is provided with heating component, and the heating component is by around sheath tracheae
Some heaters composition of outer wall arrangement.
2. a kind of flame ionization ditector suitable for high pressure-temperature high humidity environment according to claim 1, it is special
Sign is:The inclination angle (θ) of the dispersion pipe is 0~90 degree.
3. a kind of flame ionization ditector suitable for high pressure-temperature high humidity environment according to claim 1 or 2, its
It is characterised by:The outer wall of the sheath tracheae is provided with heat insulation module (7), and the heat insulation module includes at least one layer of insulation material, the guarantor
The outer wall that adiabator is coated on sheath tracheae is arranged and is wrapped in the heater.
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CN107505423A (en) * | 2017-07-19 | 2017-12-22 | 上海汉洁环境工程有限公司 | The automatic heat discharge module of flame ionization ditector |
CN111735746B (en) * | 2020-06-10 | 2022-10-04 | 杭州明瑞智能检测科技有限公司 | Handheld oil smoke detector |
WO2024192625A1 (en) * | 2023-03-20 | 2024-09-26 | aGILENT TECHNOLOGIES , INC. | Flame-based detectors with ignition promoter port |
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US20030085714A1 (en) * | 2001-11-05 | 2003-05-08 | Keyes Marion A. | Mass flow control in a process gas analyzer |
CN2524244Y (en) * | 2002-02-10 | 2002-12-04 | 复旦大学 | Miniature flame ionizing detector |
CN202330379U (en) * | 2011-11-11 | 2012-07-11 | 河南中分仪器股份有限公司 | Flame ionization detector special for analyzing dissolved gas in insulating oil |
CN102704992A (en) * | 2012-05-04 | 2012-10-03 | 安徽雄峰实业有限公司 | Transfer chamber of mine rescue capsule |
CN103257108A (en) * | 2013-05-06 | 2013-08-21 | 许楷楠 | Sheath gas protection method and device for optical gas measurement instrument |
CN203396758U (en) * | 2013-07-04 | 2014-01-15 | 浙江福立分析仪器有限公司 | Novel wide-range hydrogen flame ionization detector |
CN203375976U (en) * | 2013-08-05 | 2014-01-01 | 中绿环保科技股份有限公司 | Online instrument air curtain protection device |
CN203723771U (en) * | 2013-11-29 | 2014-07-23 | 李铁 | Structure of counter for selling cleaning type food |
CN104181264B (en) * | 2014-08-19 | 2015-12-30 | 北京大学 | A kind of pressure hydrogen flame ionization detector |
CN205049539U (en) * | 2015-10-22 | 2016-02-24 | 杭州泰丽豪环保科技有限公司 | Hydrogen FID suitable for high pressure and high temperature and high humidity environment |
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