CN208206897U - A kind of gas chromatograph flame ionization ditector flame automated watch-keeping facility - Google Patents
A kind of gas chromatograph flame ionization ditector flame automated watch-keeping facility Download PDFInfo
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- CN208206897U CN208206897U CN201820550210.1U CN201820550210U CN208206897U CN 208206897 U CN208206897 U CN 208206897U CN 201820550210 U CN201820550210 U CN 201820550210U CN 208206897 U CN208206897 U CN 208206897U
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Abstract
The utility model belongs to analytical and testing instrument technical field, a kind of gas chromatograph flame ionization ditector flame automated watch-keeping facility is provided, including flame-thrower nozzle, hydrogen inlet, air intake, the sample inlet being connected with the flame-thrower nozzle, and it is mounted on the extraction connector on the flame-thrower nozzle, the flame automated watch-keeping facility further includes being mounted in the extraction inner nosepiece wall to be located at the light occurring source at flame combustion, the optical receiver being mounted in the extraction inner nosepiece wall opposite with the smooth occurring source.By the way that the smooth occurring source is arranged at the extraction inner nosepiece wall flame combustion and monitors whether flame is lighted with optical receiver, testing result is reliable in time, is not necessarily to artificial judgment, realizes automation.
Description
Technical field
The utility model belongs to analytical and testing instrument technical field more particularly to a kind of gas chromatograph hydrogen flameionization
Detector flame automated watch-keeping facility.
Background technique
Flame ionization ditector is a kind of most popular gas chromatograph detector, can to 400 degree of boiling point with
Under organic matter analyzed.Its principle is the hydrogen-rich flame that is formed by hydrogen and air burning to ionize the organic matter in flame,
The ion of generation forms current ion signal under applied field effect, which can be in flame after micro current amplifier amplifies
Organic concentration carry out quantitative analysis.The detector generally uses electronic ignition gun using progress ignition operation is preceding first had to
Or ignition wire is lighted a fire, firing action will judge whether flame is lighted later.For the accuracy for improving judgement, have a large amount of people
Member is studied, such as:
It is automatic that Chinese CN205027459U patent discloses a kind of gas chromatograph flame ionization ditector flame
Monitoring device, including thermocouple, thermocouple draw connector, flame-thrower nozzle, air intake, hydrogen inlet, sample inlet, fixed spiral shell
Mother, thermocouple are arranged above flame-thrower nozzle, and thermocouple draws connector extraction via thermocouple and insulate with fixture nut, flame spray
Access introduces flame-thrower nozzle lower part, fixture nut after mouth lower side connection hydrogen inlet, air intake and sample inlet connection
Fixed thermocouple draws connector.The device flame monitoring is accurate and reliable, and direct electric signal output is especially advantageous for oneself of flame monitoring
Dynamicization.The utility model using electric thermo-couple temperature variation judges whether flame is lighted, monitoring result not in time, thermocouple resistance temperature
Degree variation needs certain time, and testing result cannot timely feedback.
Chinese CN204758555U patent is related to mass flow rate sensitive detector technical field, is a kind of hydrogen flameionization detection
Device comprising pedestal, component assessor and total hydrocarbon assessor, component assessor and total hydrocarbon assessor are fixed on the base, total hydrocarbon
Assessor includes the first polarization combination, the combination of the first receiving pole, upper shell and lower shell, the lower part of upper shell and lower shell it is upper
Portion is fixed together, and the combination of the first receiving pole and the first polarization combination are fixed on upper shell from top to bottom.The utility model knot
Structure is reasonable and compact, easy to use, and the outlet of burner noz(zle) setting corresponding with ignition wire can be switched in the utility model to be made
With rear, burner noz(zle) burn high temperature that hydrogen generates can rapidly by the vapor and condensate evaporation around burner noz(zle),
It prevents condensing drip from falling in ignition wire, effectively prevents the corrosion of ignition wire, and then ignition wire is prevented to occur being broken
Situation guarantees that the utility model can put kindling, makes the detection of the utility model progress working properly.The utility model passes through sight
The condensed water for examining generation judges to light when flame, needs manual operation, can not achieve automation, and observe result reliability compared with
It is low.
Currently, the method for judging whether flame is lighted has: first, cold metal object is placed in detector exhaust ports,
The droplet for whether having condensation is seen on metal object, and if any droplet, then flame has been lighted；Second, utilize the detector ion stream of amplification
Signal is before ignition and the variable quantity after igniting judges whether flame is lighted.But first method system manual operation, Bu Nengshi
Now automating, second method system indirect discrimination method, reliability is not high, and the differentiation put out a fire again after having caught fire is relatively difficult,
Need more complex electronic circuit cooperation.Therefore it is badly in need of designing a kind of gas chromatograph flame ionization ditector flame and supervises automatically
Device is surveyed to solve the above problems.
Summary of the invention
The purpose of this utility model is in view of the problems of the existing technology, to provide a kind of gas chromatograph hydrogen flame ion
Change detector flame automated watch-keeping facility, by the setting smooth occurring source at the extractions inner nosepiece wall flame combustion and
The optical receiver corresponding with the smooth occurring source monitors whether flame is lighted, and testing result is reliable in time, be not necessarily to people
Work judgement, realizes automation.
In order to achieve the above purposes, the technical solution adopted by the utility model is:
The utility model discloses a kind of gas chromatograph flame ionization ditector flame automated watch-keeping facilities, including
Flame-thrower nozzle, the hydrogen inlet being connected with the flame-thrower nozzle, air intake, sample inlet, and it is mounted on the flame
Extraction connector on nozzle, the flame automated watch-keeping facility further include being mounted in the extraction inner nosepiece wall to be located at flame combustion
Light occurring source, the optical receiver being mounted in the extraction inner nosepiece wall opposite with the smooth occurring source at burning.
Light occurring source and optical receiver detection is arranged by being located at flame combustion in the extraction inner nosepiece wall in the present invention
Whether flame is lighted.The smooth occurring source emits optical signal, and the optical receiver receives the optical signal of the smooth occurring source transmitting,
When flame ignition, flame has blocked the round of optical signal, so that the optical receiver can not receive the light and occur
The optical signal of source transmitting indicates that flame has been lighted；When fray-out of flame, the optical signal irradiation route of the smooth occurring source transmitting without
Stop, the optical receiver can receive the optical signal of the smooth occurring source transmitting, indicate fray-out of flame.Sentenced using this method
The state of cutoff flame can be realized automation, and without human intervention, judgment mode is simple, judging result high reliablity.
Preferably, be separately installed on the hydrogen inlet and air intake the first regulating valve for controlling air inflow and
Second regulating valve.
The hydrogen inlet, air intake are mounted on the flame-thrower nozzle lower part, for providing hydrogen and air for burning,
For the stabilization for guaranteeing flame, the utility model installs the first regulating valve and second respectively on the hydrogen inlet, air intake
Regulating valve controls the air inflow of gas source, and can need to adjust air inflow according to different test samples, to adjust flame
State meets the detection demand of different test samples.
The smooth occurring source, optical receiver are connect with the extraction detachable connector.
When there is a situation where be convenient for when aging, damage etc. by above structure for the smooth occurring source and optical receiver
Disassembly and replacement.
Preferably, the smooth occurring source is laser occurring source, and the optical receiver is laser pickoff.The laser energy
It is larger, monitoring result can be made more accurate.
Preferably, the connector side of drawing is equipped with the observation window for observing flame status.
Observation window is set in the extraction joint, fills transparent material at the observation window, guarantees the close of described device
Feng Xing；The observation window judges that the combustion state of flame provides multiple choices mode for user.
Preferably, the flame-thrower nozzle is equipped with electronic ignition device.It can be realized automatic ignition.
Preferably, the removable filtering dress being equipped with for preventing impurity from blocking the flame-thrower nozzle at the sample inlet
It sets.The filter device is various sizes of filter screen, can carry out selection installation as needed, can prevent described in foreign matters from being blocked
The service life of flame-thrower nozzle extension instrument.
Compared with prior art, the utility model has the beneficial effects that
(1) the utility model judges the shape of flame using the reception condition of optical signal between light occurring source and optical receiver
State, detection mode is simple, monitoring is timely, result is reliable, and direct signal exports high degree of automation；
(2) the utility model installs the first valve and the second valve respectively at the hydrogen inlet, air intake, control
Air inflow, guarantees the stability of flame, to guarantee the correctness of testing result；
(3) the utility model prevents flame described in foreign matters from being blocked from spraying by the way that filter device is arranged at the sample inlet
Mouth extends the service life of instrument.
Detailed description of the invention
Fig. 1 is a kind of gas chromatograph flame ionization ditector flame automated watch-keeping facility described in the utility model
Structural schematic diagram；
In figure: 1, flame-thrower nozzle；2, hydrogen inlet；3, air intake；4, sample inlet；5, connector is drawn；6, light occurs
Source；7, optical receiver；8, the first regulating valve；9, the second regulating valve；10, filter device.
Specific embodiment
The technical solution of the utility model is clearly and completely described below, it is clear that described embodiment is only
It is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, this field is general
Logical technical staff's all other embodiment obtained under the conditions of not making creative work belongs to the utility model guarantor
The range of shield.
Embodiment 1
The present embodiment provides a kind of gas chromatograph flame ionization ditector flame automated watch-keeping facilities, including flame
Nozzle 1, the hydrogen inlet 2 being connected with the flame-thrower nozzle 1, air intake 3, sample inlet 4, and it is mounted on the flame
Extraction connector 5 on nozzle 1, the flame automated watch-keeping facility further include being mounted on 5 inner wall of extraction connector to be located at fire
Light occurring source 6 at flame burning, the opposite optical receiver 7 being mounted on extraction 5 inner wall of connector with the smooth occurring source 6.
Preferably, the smooth occurring source 6, optical receiver 7 and the removable connection of the extraction connector 5；The smooth occurring source 6
For laser occurring source 6, the optical receiver 7 is laser pickoff 7；5 side of extraction connector is equipped with for observing flamboyancy
The observation window of state；The flame-thrower nozzle 1 is equipped with electronic ignition device.
Hydrogen inlet 2 described in the 1 lower side connection of flame-thrower nozzle, the air intake 3 with after 4 connection of sample inlet
Access 1 lower part of flame-thrower nozzle；The smooth occurring source 6 emits optical signal, and the optical receiver 7 receives the smooth occurring source 6 and emits
Optical signal, when flame ignition, the access of the optical signal is blocked, and the optical receiver 7 can not receive optical signal, table
Show that flame has been lighted；When fray-out of flame, the photo-signal channel is unobstructed, and the optical receiver 7 can receive the light hair
The optical signal that source of students 6 emits indicates fray-out of flame.The signal of flame status can be exported directly, judge flame without artificial observation
State, monitoring result are reliable in time.
The smooth occurring source 6, optical receiver 7 and the removable connection of the extraction connector 5, according to the service condition of instrument,
It is easy to disassemble and install；Using laser occurring source 6 and receiver, it can make testing result more will be accurate；Observation window is set, it can
The method of more monitoring flame status is provided for user, avoids the generation of bursty state；Electronic ignition device is set, instrument is made
The use of device is more convenient.
Embodiment 2
The present embodiment provides a kind of gas chromatograph flame ionization ditector flame automated watch-keeping facilities, with embodiment
1 compares, the difference is that, it is separately installed with first for controlling air inflow on the hydrogen inlet 2 and air intake 3 and adjusts
Save valve 8 and the second regulating valve 9.
The present embodiment at the hydrogen inlet 2, air intake by being arranged first regulating valve 8 and the second regulating valve
9, air inflow can be effectively controlled, to guarantee the stability of flame, it is ensured that the accuracy of testing result；Further, it is also possible to root
According to the difference of test sample, the size that air inflow adjusts flame is controlled, to meet the requirement of different test samples.
Embodiment 3
The present embodiment provides a kind of gas chromatograph flame ionization ditector flame automated watch-keeping facilities, with embodiment
1 compares, the difference is that, it is removable at the sample inlet 4 to be equipped with for preventing impurity from blocking the flame-thrower nozzle 1
Filter device 10, the filter device 10 are filter screen, can be installed according to the case where sample.
The filter device 10 is set at the sample inlet 4, flame-thrower nozzle described in foreign matters from being blocked can be effectively prevent
1, extend the service life of instrument.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (7)
- It is and described 1. a kind of gas chromatograph flame ionization ditector flame automated watch-keeping facility, including flame-thrower nozzle (1) Hydrogen inlet (2) that flame-thrower nozzle (1) is connected, air intake (3), sample inlet (4), and it is mounted on the flame-thrower nozzle (1) the extraction connector (5) on, which is characterized in that the flame automated watch-keeping facility further includes being mounted on the extraction connector (5) It is located at the light occurring source (6) at flame combustion on inner wall, is mounted on the extraction connector (5) relatively with the smooth occurring source (6) Optical receiver (7) on inner wall.
- 2. a kind of gas chromatograph flame ionization ditector flame automated watch-keeping facility according to claim 1, It is characterized in that, the first regulating valve for controlling air inflow is separately installed on the hydrogen inlet (2) and air intake (3) (8) and the second regulating valve (9).
- 3. a kind of gas chromatograph flame ionization ditector flame automated watch-keeping facility according to claim 1, It is characterized in that, the smooth occurring source (6), optical receiver (7) and the removable connection of the extraction connector (5).
- 4. a kind of gas chromatograph flame ionization ditector flame automated watch-keeping facility according to claim 1, It is characterized in that, the smooth occurring source (6) is laser occurring source (6), and the optical receiver (7) is laser pickoff (7).
- 5. a kind of gas chromatograph flame ionization ditector flame automated watch-keeping facility according to claim 1, It is characterized in that, connector (5) side of drawing is equipped with the observation window for observing flame status.
- 6. a kind of gas chromatograph flame ionization ditector flame automated watch-keeping facility according to claim 1, It is characterized in that, the flame-thrower nozzle (1) is equipped with electronic ignition device.
- 7. a kind of gas chromatograph flame ionization ditector flame automated watch-keeping facility according to claim 1, It is characterized in that, the removable filtering dress being equipped with for preventing impurity from blocking the flame-thrower nozzle (1) at the sample inlet (4) Set (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820550210.1U CN208206897U (en) | 2018-04-17 | 2018-04-17 | A kind of gas chromatograph flame ionization ditector flame automated watch-keeping facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820550210.1U CN208206897U (en) | 2018-04-17 | 2018-04-17 | A kind of gas chromatograph flame ionization ditector flame automated watch-keeping facility |
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| CN208206897U true CN208206897U (en) | 2018-12-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112014513A (en) * | 2019-05-30 | 2020-12-01 | 上海迪勤传感技术有限公司 | Flame-out judgment device of hydrogen flame ionization detector |
| CN113984739A (en) * | 2021-09-22 | 2022-01-28 | 拓正化工工程(上海)有限公司 | Ion flame detection system |
-
2018
- 2018-04-17 CN CN201820550210.1U patent/CN208206897U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112014513A (en) * | 2019-05-30 | 2020-12-01 | 上海迪勤传感技术有限公司 | Flame-out judgment device of hydrogen flame ionization detector |
| CN113984739A (en) * | 2021-09-22 | 2022-01-28 | 拓正化工工程(上海)有限公司 | Ion flame detection system |
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