CN207601030U - Chip type chromatographic column structure - Google Patents
Chip type chromatographic column structure Download PDFInfo
- Publication number
- CN207601030U CN207601030U CN201721632148.2U CN201721632148U CN207601030U CN 207601030 U CN207601030 U CN 207601030U CN 201721632148 U CN201721632148 U CN 201721632148U CN 207601030 U CN207601030 U CN 207601030U
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- China
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- chromatographic column
- channel
- solenoid valve
- way solenoid
- chip type
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Abstract
The utility model provides a kind of chip type chromatographic column structure, including chromatographic column housing, the chromatographic column enclosure interior is provided with carrier charging port, air inlet, air inlet gas circuit, three-way solenoid valve, emptying gas circuit, S-shaped and integrates gas circuit and gas outlet, and filling carrier integrates gas circuit by the carrier charging port into the S-shaped；Air enters the port one of the three-way solenoid valve by the air inlet, the air inlet gas circuit, the port two of the three-way solenoid valve connects the gas outlet by road of dropping a hint, and the port three of the three-way solenoid valve integrates gas circuit by the S-shaped and connects the gas outlet.
Description
Technical field
The utility model is related to a kind of chromatographic columns, specifically, relate to a kind of chip type chromatographic column structure.
Background technology
Other carrier gas and auxiliary gas and sampling device sample introduction are required for after traditional chromatographic column access chromatographic column, is made
It is cumbersome into gas circuit.In addition, most of traditional chromatographic column use stainless steel column, shape have it is U-shaped and screw type,
Internal diameter is in 14mm, and length is 110m or so, and disk is bigger into volume after U-shaped or disk, install need to occupy in instrument it is larger
Space, it is impossible to applied in small Handheld analysis device.
In order to solve the problems, such as present on, people are seeking a kind of ideal technical solution always.
Invention content
The purpose of this utility model is in view of the deficiencies of the prior art, so as to provide a kind of chip type chromatographic column structure.
To achieve these goals, technical solution is used by the utility model：A kind of chip type chromatographic column structure, packet
Shell is included, air inlet and gas outlet are provided on the shell, inlet channel, air duct, chromatography are provided in the shell
Column channel and three-way solenoid valve, the chromatographic column channel are interior filled with filling carrier；The air inlet passes through the inlet channel
The inlet end of the three-way solenoid valve is connected, the outlet side one of the three-way solenoid valve described in air duct connection by going out
Gas port, the outlet side two of the three-way solenoid valve connect the gas outlet by the chromatographic column channel.
Based on above-mentioned, the chromatographic column channel is S bend pipe road, and the inlet end in the S bend pipe road connects the electromagnetic three-way
The outlet side one of valve, the outlet side in the S bend pipe road connect the gas outlet.
Based on above-mentioned, carrier charging port is additionally provided on the shell, carrier filling channel is additionally provided in the shell,
The carrier charging port connects the inlet end in the S bend pipe road by the carrier filling channel.
Based on above-mentioned, the check valve being arranged between the chromatographic column and the gas outlet is further included, the check valve
Flow direction is from gas outlet described in the chromatographic column pipeline flow-direction.
Based on above-mentioned, the shell is square casing.
Based on above-mentioned, the filling carrier is carbon molecular sieve.
The utility model has substantive distinguishing features and progress compared with the prior art, and specifically, the utility model passes through electricity
Magnetic triple valve carries out the switching of gas circuit, without in addition adding inlet duct；Chromatographic column channel is S-shaped structure, and this reduces institutes
The volume of chromatographic column is stated, while only needs an external air pump, you can realizes the sampling of sample gas, can be applied to volume
Small Handheld analysis device；Filling carrier can be replaced as needed, increase the scope of application of the chromatographic column.This practicality is new
Type has the advantages that design science, small, applied widely.
Description of the drawings
Fig. 1 is the overall structure diagram of the utility model chip type chromatographic column structure.
Fig. 2 is the inner air path flow chart of the utility model chip type chromatographic column structure.
In figure：1. shell, 2. air inlets；3. gas outlet；4. inlet channel；5. air duct；6. chromatographic column channel；7. electricity
Magnetic triple valve；8. three-way solenoid valve inlet end；9. three-way solenoid valve outlet side one；10. three-way solenoid valve outlet side two；It is 11. single
To valve.
Specific embodiment
Below by specific embodiment, the technical solution of the utility model is described in further detail.
As shown in Figure 1, a kind of chip type chromatographic column structure, including shell 1, is provided with air inlet 2 and goes out on the shell 1
Gas port 3 is provided with inlet channel 4, air duct 5, chromatographic column channel 6 and three-way solenoid valve 7, the chromatography in the shell 1
Filled with filling carrier in column channel 6；The air inlet 2 connects the three-way solenoid valve inlet end by the inlet channel 4
8, the three-way solenoid valve outlet side 1 connects the gas outlet 3, the three-way solenoid valve outlet by the air duct 5
2 10 are held to connect the gas outlet 3 by the chromatographic column channel 6.
Specifically, the chromatographic column channel 6 is S bend pipe road, the inlet end in the S bend pipe road connects the three-way solenoid valve
Outlet side 1, the outlet side in the S bend pipe road connect the gas outlet 3.By the way that the chromatographic column channel 6 is set as S-shaped pipe
Road greatly reduces the structure of the chromatographic column.It preferably, can be by the shell 1 according to the structure of the chromatographic column channel 6
It is set as chip type shape.
As shown in Fig. 2, the inner air path flow chart for chip type chromatographic column structure, air is from the air inlet 2 and described
Inlet channel 4 enters the three-way solenoid valve inlet end 8 and carries out gas circuit switching, specifically, 8 He of three-way solenoid valve inlet end
It is emptying gas circuit when the three-way solenoid valve outlet side 1 is connected, air enters the sky by the three-way solenoid valve 7 at this time
Gas channel 5, and discharged from the gas outlet 3；The three-way solenoid valve inlet end 8 and the three-way solenoid valve outlet side 2 10 connect
It is chromatographic column gas circuit when logical, at this point, air enters the chromatographic column channel 6 by the three-way solenoid valve 7, and from the outlet
Mouth 3.
The workflow of the utility model is as follows：
Sample phase：Place external air pump before the air inlet 2 of the chip type chromatographic column structure, and by external air
Pump is placed in sample environment with draws sample gas, and as shown in Fig. 2 process of gas path figures, the three-way solenoid valve 7 is powered, and drops a hint
Road disconnects, and chromatographic column gas circuit is connected, and extracts a certain amount of under test gas.
Gas circuit purge stages：External air pump is positioned in pure air environment, and controls the three-way solenoid valve 7 disconnected
Electricity is vented gas circuit and connects at this time, and chromatographic column gas circuit disconnects, as shown in Fig. 2 process of gas path, with clean surrounding air purge out into
Extra under test gas in gas channel 4.
Separation analysis：External air pump is positioned in pure air environment, and the three-way solenoid valve 7 is controlled to be powered,
Emptying gas circuit disconnects at this time, and chromatographic column gas circuit is connected, and clean air is with the under test gas for entering chromatographic column in sample phase
Carry out subsequent separation analysis.
The utility model carries out the switching of gas circuit by the three-way solenoid valve 7, without in addition adding inlet duct；It is described
Chromatographic column channel 6 is S-shaped structure, this reduces the volume of the chromatographic column, while only needs an external air pump, you can
It realizes the sampling of sample gas, can be applied to small Handheld analysis device.
Have, in order to increase the scope of application of the chip type chromatographic column structure, the filling in the chromatographic column channel 6
Carrier can carry out selection replacement according to specific environmental gas detection demand；That is, carrier filling is additionally provided on the shell 1
Mouthful, carrier filling channel is additionally provided in the shell 1, the carrier charging port passes through described in carrier filling channel connection
The inlet end in S bend pipe road.
Institute is preferred, and the filling carrier is carbon molecular sieve.The chip type chromatographic column structure can be used for natural gas at this time
Pipe leakage analyzes methane, ethane and the propane components in natural gas with separation.
Sample gas is entered from column outlet end in chromatographic column in order to prevent, influences test result, the chromatographic column
Check valve 11 is additionally provided between the gas outlet 3, the flow direction of the check valve 11 is from the chromatographic column pipeline flow-direction institute
State gas outlet 3.
Finally it should be noted that:Above example is only to illustrate the technical solution of the utility model rather than it is limited
System；Although the utility model is described in detail with reference to preferred embodiment, those of ordinary skill in the art should
Understand：It can still modify to specific embodiment of the present utility model or some technical characteristics are equally replaced
It changes；Without departing from the spirit of technical solutions of the utility model, should all cover in the claimed technical solution of the utility model
In range.
Claims (6)
1. a kind of chip type chromatographic column structure, it is characterised in that：Including shell, air inlet and outlet are provided on the shell
Mouthful, inlet channel, air duct, chromatographic column channel and three-way solenoid valve are provided in the shell, in the chromatographic column channel
Filled with filling carrier；The air inlet connects the inlet end of the three-way solenoid valve, the electromagnetism by the inlet channel
The outlet side one of triple valve connects the gas outlet by the air duct, and the outlet side two of the three-way solenoid valve passes through institute
It states chromatographic column channel and connects the gas outlet.
2. chip type chromatographic column structure according to claim 1, it is characterised in that：The chromatographic column channel is S bend pipe road,
The inlet end in the S bend pipe road connects the outlet side one of the three-way solenoid valve, goes out described in the outlet side connection in the S bend pipe road
Gas port.
3. chip type chromatographic column structure according to claim 2, it is characterised in that：Carrier is additionally provided on the shell to fill out
Mouth is filled, carrier filling channel is additionally provided in the shell, the carrier charging port connects institute by the carrier filling channel
State the inlet end in S bend pipe road.
4. the chip type chromatographic column structure according to claims 1 or 2 or 3, it is characterised in that：It further includes and is arranged on the color
The check valve between column and the gas outlet is composed, the flow direction of the check valve is from outlet described in the chromatographic column pipeline flow-direction
Mouthful.
5. chip type chromatographic column structure according to claim 4, it is characterised in that：The shell is square casing.
6. chip type chromatographic column structure according to claim 5, it is characterised in that：The filling carrier is carbon molecular sieve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721632148.2U CN207601030U (en) | 2017-11-30 | 2017-11-30 | Chip type chromatographic column structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721632148.2U CN207601030U (en) | 2017-11-30 | 2017-11-30 | Chip type chromatographic column structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207601030U true CN207601030U (en) | 2018-07-10 |
Family
ID=62762580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721632148.2U Active CN207601030U (en) | 2017-11-30 | 2017-11-30 | Chip type chromatographic column structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207601030U (en) |
-
2017
- 2017-11-30 CN CN201721632148.2U patent/CN207601030U/en active Active
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