CN207488245U - A kind of efficient gas chromatograph - Google Patents
A kind of efficient gas chromatograph Download PDFInfo
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- CN207488245U CN207488245U CN201721385724.8U CN201721385724U CN207488245U CN 207488245 U CN207488245 U CN 207488245U CN 201721385724 U CN201721385724 U CN 201721385724U CN 207488245 U CN207488245 U CN 207488245U
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- chromatographic column
- burner hearth
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- gas
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Abstract
The utility model discloses a kind of efficient gas chromatographs,Including gas chromatograph ontology,Compressed air source unit,Blast mechanism and exhaust gas processing device,The gas chromatograph ontology includes shell,Positioned at the burner hearth of enclosure,And the netted chromatographic column frame inside the burner hearth,The chromatographic column frame is internally provided with chromatographic column,Several air holes are provided on the shell,The chromatographic column outer frame side is wound with heating tube,The Blast mechanism includes air blower,The air blower end passes through the shell and the hearth wall to extend to the burner hearth bottom,The first air outlet pipe is provided in the chromatographic column,First air outlet pipe is connect after sequentially passing through the chromatographic column frame and the burner hearth with the detector being fixed on the outer casing inner wall,The second air outlet pipe is provided on the detector,Second air outlet pipe is connect after passing through the shell with the exhaust gas processing device.The application has and makes uniformity of temperature profile in burner hearth, and detection efficiency is high, it is environmentally friendly the advantages of.
Description
Technical field
The utility model is related to chromatograph devices technical fields, relate particularly to a kind of efficient gas chromatograph.
Background technology
Gas chromatograph is that a kind of compound to various complexity is detached and the instrument of identification and analysis.In operation temperature
Under, gas, liquid, the solid of good thermal stability are detached using gas chromatograph.Gas-chromatography is a kind of physics
Separation method, using the difference of measured matter each component distribution coefficient between stationary phase and mobile phase, obtain different component
To separation；The retention time of substance and the column temperature of chromatographic column, column length, column internal diameter, the material of stationary phase and thickness and carrier gas speed
The correlations such as degree.
At present, gas-chromatography is in operation the problem is that non-uniform temperature in burner hearth, in addition, using from cooling down
Mode, make that burner hearth cooling is slow, and cooling-down effect is bad, and so as to reduce separating degree and accuracy, impact analysis is as a result, efficiency is low
Under, in addition, the tail gas generated in work indoors or in air, seriously affects staff's without any processing direct emission
Safety and environmental quality, not environmentally.
Utility model content
The purpose of this utility model is to provide a kind of efficient gas chromatograph, by rationally being set to chromatographic
Meter, makes it have uniformity of temperature profile in burner hearth, and lowering temperature uniform is rapid and effect is good, and separating degree and accuracy are high, detection efficiency
Height, it is environmentally friendly the advantages of.
For solution more than technical problem, technical solution provided by the utility model is a kind of efficient gas chromatograph,
Including gas chromatograph ontology, compressed air source unit, Blast mechanism and exhaust gas processing device, the gas chromatograph ontology includes shell
And burner hearth, it is provided with several air holes on the shell, the center of the burner hearth is provided with chromatographic column, outside the chromatographic column
Side is provided with netted chromatographic column frame, and heating tube is wound on the outside of the chromatographic column frame, be provided on the inboard wall of burner hearth to
Lack 2 the first fans and potsherd, gas vent is provided at the top of the burner hearth, the Blast mechanism includes air blower, described
Air blower port passes through the shell and the hearth wall to be placed in the burner hearth bottom, and the first outlet is provided in the chromatographic column
Pipe, first air outlet pipe are connected with detector after sequentially passing through the chromatographic column frame and the burner hearth, and the detector is fixed
On the outer casing inner wall, be provided with the second air outlet pipe on the detector, second air outlet pipe pass through after the shell with
The exhaust gas processing device is connected, and controller is additionally provided on the gas-chromatography ontology, each first fan with
The controller is electrically connected, and control panel, the control panel and the controller are additionally provided on the gas-chromatography ontology
Electrical connection.
By above technical scheme, after gas chromatograph powers on, gas is entered by compressed air source unit in chromatographic column, gas
Gas in source device brings sample in chromatographic column into, is tied obtained by experiment using that can be observed on a display screen after detector
Fruit, and the tail gas for testing gained is discharged after exhaust gas processing device from exhaust pipe.During heating, air blower air blast into burner hearth,
Heating tube and potsherd collective effect, in addition the first fan hot wind is made to be uniformly distributed in burner hearth, make to chromatographic column homogeneous heating；
Potsherd heat conduction is rapid, is remarkably improved the efficiency of heating surface；During cooling, heating tube is stopped, and the first fan continues to start, air blast
Machine air blast into burner hearth, potsherd cooling is rapid, is remarkably improved cooling efficiency, makes cooling evenly, and potsherd heat conduction is rapid,
Heat dissipation is also rapid, and the gas vent of upper furnace can balance the pressure on the inner and outer boundary of burner hearth, the air hole on shell can make it is extraneous and
It takes a breath in burner hearth.By to chromatographic rational design, making it have uniformity of temperature profile in burner hearth, lowering temperature uniform is rapid and imitates
Fruit is good, and separating degree and accuracy are high, and detection efficiency is high, it is environmentally friendly the advantages of.
Further, the top of the shell is provided with sample jar, and the sample pot bottom is provided with sample feeding pipe, it is described into
Exclusion device and sample flow controller are provided on sample pipe, the sample feeding pipe sequentially passes through the shell, the burner hearth and institute
It is connected after stating chromatographic column frame with the chromatographic column, injection port is provided on the sample jar, is provided on the injection port close
Closure door.Sample flow controller accurately controls the inlet of sample, and the injection port on sample jar seals convenient for sample is put into
Door plays the effect of sealing in chromatograph work.
Further, the exclusion device includes the first filter layer set gradually, the second water accepting layer and the second filtering
Layer.A large amount of impurity in the adsorbable sample of the first filter layer of exclusion device, the second water accepting layer being capable of water in absorption dehydration sample
Point, and the second filter layer can further absorb the impurity in sample, be adsorbed by multilayer, can ensure to enter color from sample feeding pipe
Compose column sample is free from foreign meter and moisture, moisture can be avoided to damage chromatographic column and can improve the accuracy of testing result.
Further, the compressed air source unit includes carrier gas air source tank, appendix and gas flow meter, is set in the appendix
The first water accepting layer is equipped with, first water suction is placed between the carrier gas air source tank and the gas flowmeter, the gas transmission
Pipe connects after sequentially passing through the shell, the burner hearth and the chromatographic column frame with the chromatographic column.First water accepting layer can be inhaled
The moisture in gas air source is recorded, gas flowmeter can accurately control the inlet of carrier gas.
Further, the exhaust gas processing device includes tail gas treatment device, exhaust pipe and valve, second air outlet pipe
The tail gas treatment device is connected after across the shell, the valve is arranged on the exhaust pipe.To the tail gas after reaction
It is discharged after being handled, safety and environmental protection.
Further, be provided on the control panel display screen, multiple first fan control switch buttons and several
Function key, the detector, the display screen, each first fan control switch button and several described function keys are equal
It is electrically connected with the controller, each described equal 1 the first fan of independent control of first fan control switch button.Each first
Fan, when a certain the first fan breaks down, does not influence other by the first independent fan control switch button control
The work of first fan is repaired in addition convenient for searching.
Further, the second fan of at least two is provided on the outer casing inner wall, is provided on the control panel more
A second fan control buttons, each second fan is by the mutually independent second fan control switch button control
System, each second fan and each second fan control switch button are electrically connected with the controller.It needs cold
When but, the second fan is opened, the effect of the second fan is to speed up reducing temperature in burner hearth, further reduces the temperature of chromatographic column,
Each second fan is by mutually independent second fan control switch button control, when a certain the second fan breaks down
When, other the second fan works are not influenced, in addition, convenient for searching repair.
Further, temperature sensor, the temperature sensor and the controller are provided on the inside of the chromatographic column frame
Electrical connection.By the effect of temperature sensor and controller, the real time monitoring realized to chromatogram column temperature can be crossed, timely adjustment,
It realizes the accurate control of chromatogram column temperature, temperature fluctuation is avoided to have an impact result.
Based on described above, compared with prior art, advantage is the application：(1) Temperature Distribution is equal in burner hearth
It is even, make chromatogram column temperature uniform；(2) lowering temperature uniform is rapid and effect is good；(3) testing result is stablized；(4) tail gas of experiment gained
It is discharged after tail gas treatment device from exhaust pipe, safety and environmental protection；(5) damage of the moisture to chromatographic column is avoided.
Description of the drawings
Fig. 1 is a kind of structure chart of herein described efficient gas chromatograph.
Fig. 2 is the structure chart of the exclusion device amplification in herein described sample feeding pipe.
Reference numeral：1- carrier gas air source tanks, 2- appendixs, 3- gas flowmeters, 4- air blowers, 5- shells, 6- burner hearths, 7-
Chromatographic column, 8- chromatographic column frames, 9- heating tubes, the first fans of 10-, 11- potsherds, 12- gas vents, the first air outlet pipes of 13-, 14-
Detector, the second air outlet pipes of 15-, 16- tail gas treatment devices, 17- exhaust pipes, 18- valves, 19- sample jars, 20- sample feeding pipes,
21- sample flow controllers, the second fans of 22-, 23- air holes, 24- control panels, 25- display screens, 26- the first fan controls
Switch button processed, 27- function keys, 28- temperature sensors, 190- injection ports, 191- hermatic doors, the first filter layers of 201-, 202-
Second water accepting layer, the second filter layers of 203-, the first water accepting layers of 204-, the second fan control buttons of 261-.
Specific embodiment
In order to which those skilled in the art are better understood from the utility model, below in conjunction with the accompanying drawings with following embodiment to this
Utility model is described in further detail.
Embodiment 1
As shown in Figure 1, a kind of efficient gas chromatograph, including gas chromatograph ontology, compressed air source unit, Blast mechanism
And exhaust gas processing device, the gas chromatograph ontology include shell 5, burner hearth 6 inside shell 5 and positioned at described
Netted chromatographic column frame 8 inside burner hearth 6, the chromatographic column frame 8 is internally provided with chromatographic column 7, if being provided on the shell 5
Stomata 23 is parched, the first fan of at least two 10 is provided on 6 inner wall of burner hearth, is additionally provided on 6 inner wall of burner hearth multiple
Potsherd 11, the top of the burner hearth 6 are provided with gas vent 12, and the outside of the chromatographic column frame 8 is wound with heating tube 9, described
Blast mechanism includes air blower 4, and 4 end of air blower passes through the shell 5 and 6 wall of the burner hearth to extend to the burner hearth 6
Bottom is provided with the first air outlet pipe 13 in the chromatographic column 7, and first air outlet pipe 13 sequentially passes through 8 He of chromatographic column frame
It is connect after the burner hearth 6 with the detector 14 being fixed on 5 inner wall of shell, being provided with second on the detector 14 goes out
Tracheae 15, second air outlet pipe 15 are connect after passing through the shell 5 with the exhaust gas processing device, the gas-chromatography ontology
On be additionally provided with controller, each first fan 10 be electrically connected with the controller, on the gas-chromatography ontology and also
Control panel 24 is provided with, the control panel 24 is electrically connected with the controller.
After gas chromatograph powers on, gas is entered by compressed air source unit in chromatographic column 7, and the gas in compressed air source unit will
Sample is brought into chromatographic column 7, using can be observed after detector 14 test acquired results, and test gained tail gas pass through tail
It is discharged after Flash Gas Compression Skid System.During heating, the air blast into burner hearth 6 of air blower 4,11 collective effect of heating tube 9 and potsherd, in addition
One fan 10 makes hot wind be uniformly distributed in burner hearth 6, makes to 7 homogeneous heating of chromatographic column；11 heat conduction of potsherd is rapid, can significantly carry
The high efficiency of heating surface；During cooling, heating tube is stopped, and the first fan 10 continues to start, the air blast into burner hearth 6 of air blower 4, ceramics
Piece 11 cools down rapidly, is remarkably improved cooling efficiency, makes cooling evenly, and 11 heat conduction of potsherd is rapid, and radiate also rapid, burner hearth
The gas vent 12 on 6 tops can balance the pressure on 6 inner and outer boundary of burner hearth, and the air hole 23 on shell 5 can make in extraneous and burner hearth 6
Ventilation.By to chromatographic rational design, making it have uniformity of temperature profile in burner hearth, lowering temperature uniform is rapid and effect is good,
Separating degree and accuracy are high, and detection efficiency is high, it is environmentally friendly the advantages of.
Embodiment 2
Based on embodiment 1, as shown in Figure 1, the top of the shell 5 is provided with sample jar 19,19 bottom of sample jar
Be provided with sample feeding pipe 20, be provided with exclusion device and sample flow controller 21 on the sample feeding pipe 20, the sample feeding pipe 20 according to
It is secondary pass through the shell 5, the burner hearth 6 and the chromatographic column frame 8 after be connected with the chromatographic column 7, on the sample jar 19
Injection port 190 is provided with, hermatic door 191 is provided on the injection port 190.
Sample flow controller 21 accurately controls the inlet of sample, and the injection port 190 on sample jar 19 is convenient for sample
Product are put into, and hermatic door 191 plays the effect of sealing in chromatograph work.
Embodiment 3
Based on embodiment 1, as shown in Fig. 1~2, the exclusion device includes the first filter layer 201, second set gradually
202 and second filter layer 203 of water accepting layer.
A large amount of impurity in the 201 adsorbable sample of the first filter layer of exclusion device, the second water accepting layer 202 can absorb dry
Moisture in dry sample, and the second filter layer 203 can further absorb the impurity in sample, be adsorbed by multilayer, can ensure
From sample feeding pipe enter chromatographic column sample is free from foreign meter and moisture, moisture can be avoided to damage chromatographic column and can improve detection
As a result accuracy.
Embodiment 4
Based on embodiment 1, as shown in Figure 1, the compressed air source unit includes carrier gas air source tank 1,2 and gas flow meter of appendix
3, it is provided with the first water accepting layer 204 in the appendix 2, first water accepting layer 204 is placed in the carrier gas air source tank 1 and described
Between gas flowmeter 3, the appendix 2 sequentially pass through after the shell 5, the burner hearth 6 and the chromatographic column frame 8 with it is described
Chromatographic column 7 connects.
First water accepting layer 204 can absorb the moisture in carrier gas air source, gas flowmeter 3 can accurately control carrier gas into
Enter amount.
Embodiment 5
Based on embodiment 1, as shown in Figure 1, the exhaust gas processing device includes tail gas treatment device 16, exhaust pipe 17 and valve
Door 18, second air outlet pipe 15 connect the tail gas treatment device 16 after passing through the shell 5, and the valve 18 is arranged on institute
It states on exhaust pipe 17.
It is discharged after handling the tail gas after reaction, safety and environmental protection.
Embodiment 6
Based on embodiment 1, as shown in Figure 1, being provided with display screen 25, multiple first fan control on the control panel 24
Switch button 26 and several function keys 27, the detector 14, the display screen 25, each first fan control switch
Button 26 and several described function keys 27 are electrically connected with the controller, each first fan control switch button 26
1 the first fan of equal independent control.
Each first fan 10 is controlled by the first independent fan control switch button 26, when a certain the first fan 10
During failure, the work of other the first fans 10 is not influenced, is repaired in addition convenient for searching.
Embodiment 7
Based on embodiment 1, as shown in Figure 1, being provided with the second fan of at least two 22, the control on 5 inner wall of the shell
Multiple second fan control buttons 261 are provided on panel 24, each second fan 22 is by mutually independent described the
Two fan control switch buttons 261 control, each second fan 22 and each second fan control switch button 261
It is electrically connected with the controller.
When needing cooling, the second fan 22 is opened, the effect of the second fan 22 is to speed up reducing temperature in burner hearth 6, into one
Step reduces the temperature of chromatographic column 7, and each second fan 22 is controlled by mutually independent second fan control switch button 261,
When a certain the second fan 22 breaks down, other second fans 22 are not influenced and are worked, in addition, convenient for searching repair.
Embodiment 8
Based on embodiment 1, as shown in Figure 1,8 inside of the chromatographic column frame is provided with temperature sensor 28, the temperature passes
Sensor 28 is electrically connected with the controller 29.
By the effect of temperature sensor 28 and controller 29, the real time monitoring realized to 7 temperature of chromatographic column can be crossed, in due course
It adjusts, realizes the accurate control of chromatogram column temperature, temperature fluctuation is avoided to have an impact result.
The preferred embodiment of the above, only the utility model, is not intended to limit the utility model, the utility model
Scope of patent protection be subject to claims, what every specification and accompanying drawing content with the utility model was made is equal
Structure change similarly should be included in the scope of protection of the utility model.
Claims (8)
1. a kind of efficient gas chromatograph, which is characterized in that including gas chromatograph ontology, compressed air source unit, Blast mechanism
And exhaust gas processing device, the gas chromatograph ontology includes shell, positioned at the burner hearth of enclosure and positioned at the burner hearth
Internal netted chromatographic column frame, the chromatographic column frame are internally provided with chromatographic column, several air holes are provided on the shell,
The first fan of at least two is provided on the inboard wall of burner hearth, multiple potsherds, the burner hearth are additionally provided on the inboard wall of burner hearth
Top be provided with gas vent, be wound with heating tube on the outside of the chromatographic column frame, the Blast mechanism includes air blower, described
Air blower end passes through the shell and the hearth wall to extend to the burner hearth bottom, and first is provided in the chromatographic column and is gone out
Tracheae, first air outlet pipe sequentially pass through the inspection with being fixed on the outer casing inner wall after the chromatographic column frame and the burner hearth
Survey instrument connection, be provided with the second air outlet pipe on the detector, second air outlet pipe pass through after the shell with the tail gas
Processing unit connects, and is additionally provided with controller on the gas-chromatography ontology, each first fan with the controller
It is electrically connected, is additionally provided with control panel on the gas-chromatography ontology, the control panel is electrically connected with the controller.
A kind of 2. efficient gas chromatograph according to claim 1, which is characterized in that the top setting of the shell
There is sample jar, the sample pot bottom is provided with sample feeding pipe, and exclusion device and sample flow control are provided on the sample feeding pipe
Device, the sample feeding pipe is connected after sequentially passing through the shell, the burner hearth and the chromatographic column frame with the chromatographic column, described
Injection port is provided on sample jar, hermatic door is provided on the injection port.
3. a kind of efficient gas chromatograph according to claim 2, which is characterized in that the exclusion device include according to
The first filter layer, the second water accepting layer and the second filter layer of secondary setting.
4. a kind of efficient gas chromatograph according to claim 1, which is characterized in that the compressed air source unit includes carrying
Gas air source tank, appendix and gas flow meter, the first water accepting layer is provided in the appendix, and first water suction is placed on institute
It states between carrier gas air source tank and the gas flowmeter, the appendix sequentially passes through the shell, the burner hearth and the color
It is connected after spectrum column frame with the chromatographic column.
A kind of 5. efficient gas chromatograph according to claim 1, which is characterized in that the exhaust gas processing device packet
Tail gas treatment device, exhaust pipe and valve are included, second air outlet pipe connects the tail gas treatment device after passing through the shell.
6. a kind of efficient gas chromatograph according to claim 1, which is characterized in that set on the control panel
There are display screen, multiple first fan control switch buttons and several function keys, the detector, the display screen, Mei Gesuo
It states the first fan control switch button and several described function keys is electrically connected with the controller, each first fan
Control equal 1 the first fan of independent control of switch button.
7. a kind of efficient gas chromatograph according to claim 1, which is characterized in that set on the outer casing inner wall
There is the second fan of at least two, multiple second fan control buttons are provided on the control panel, each second fan is equal
By the mutually independent second fan control switch button control, each second fan and each second fan control
Switch button processed is electrically connected with the controller.
8. a kind of efficient gas chromatograph according to claim 1, which is characterized in that set on the inside of the chromatographic column frame
Temperature sensor is put, the temperature sensor is electrically connected with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721385724.8U CN207488245U (en) | 2017-10-25 | 2017-10-25 | A kind of efficient gas chromatograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721385724.8U CN207488245U (en) | 2017-10-25 | 2017-10-25 | A kind of efficient gas chromatograph |
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| Publication Number | Publication Date |
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| CN207488245U true CN207488245U (en) | 2018-06-12 |
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| CN201721385724.8U Active CN207488245U (en) | 2017-10-25 | 2017-10-25 | A kind of efficient gas chromatograph |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109557224A (en) * | 2018-12-29 | 2019-04-02 | 山东润通科技有限公司 | A kind of gas chromatograph and its application method with auxiliary cooling device |
| CN111272935A (en) * | 2020-03-03 | 2020-06-12 | 河北百润环境检测技术有限公司 | Portable gas chromatograph device |
| CN111579696A (en) * | 2020-06-17 | 2020-08-25 | 台州市创导科学仪器有限公司 | Miniature chromatographic column box |
| CN111796045A (en) * | 2020-07-13 | 2020-10-20 | 杭州道宇检测技术有限公司 | Chromatographic column heating device for gas chromatograph |
| CN115032309A (en) * | 2022-06-28 | 2022-09-09 | 易成琴 | Optical chromatograph |
-
2017
- 2017-10-25 CN CN201721385724.8U patent/CN207488245U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109557224A (en) * | 2018-12-29 | 2019-04-02 | 山东润通科技有限公司 | A kind of gas chromatograph and its application method with auxiliary cooling device |
| CN111272935A (en) * | 2020-03-03 | 2020-06-12 | 河北百润环境检测技术有限公司 | Portable gas chromatograph device |
| CN111579696A (en) * | 2020-06-17 | 2020-08-25 | 台州市创导科学仪器有限公司 | Miniature chromatographic column box |
| CN111796045A (en) * | 2020-07-13 | 2020-10-20 | 杭州道宇检测技术有限公司 | Chromatographic column heating device for gas chromatograph |
| CN111796045B (en) * | 2020-07-13 | 2022-06-14 | 杭州道宇检测技术有限公司 | Chromatographic column heating device for gas chromatograph |
| CN115032309A (en) * | 2022-06-28 | 2022-09-09 | 易成琴 | Optical chromatograph |
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