CN211741172U - Manual sample introduction device for micro-chromatography - Google Patents
Manual sample introduction device for micro-chromatography Download PDFInfo
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- CN211741172U CN211741172U CN202020345881.1U CN202020345881U CN211741172U CN 211741172 U CN211741172 U CN 211741172U CN 202020345881 U CN202020345881 U CN 202020345881U CN 211741172 U CN211741172 U CN 211741172U
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- branch pipe
- manual
- sampling
- chromatograph
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Abstract
The utility model relates to a for gas chromatograph especially relates to a manual sampling device of micro-chromatograph. The utility model discloses at the damaged, extrusion of beam tube, carry out the manual analysis of advancing when causing gas leakage or jam, can not influence normal daily detection, can not influence normal production. The manual micro-chromatograph sample feeding device comprises a micro-chromatograph body, wherein a sample feeding interface is arranged on the micro-chromatograph body; a first end of the tee joint is connected with the sample inlet interface through a pipeline, and a second end of the tee joint is connected with the automatic sample inlet pipe; the sampling pump is provided with a first branch pipe at the air inlet end and a second branch pipe at the air outlet end, and the second branch pipe is connected with the third end of the tee joint; the electromagnetic valve is arranged on the second branch pipe, and the second electromagnetic valve is arranged on the automatic sampling pipe.
Description
Technical Field
The utility model relates to a for gas chromatograph especially relates to a manual sampling device of micro-chromatograph.
Background
At present, the traditional micro-chromatography sample injection mode generally adopts a beam tube for gas sampling, and the beam tube is generally made of polyethylene materials. The bundle pipes are laid in the roadway and the gob, and sometimes can be damaged and extruded in the roadway to cause air leakage or blockage; the environment in the goaf is severe, and falling rocks in the goaf can easily hit the sampling beam tube, so that the sampling tube is damaged. Once the sampling pipe is damaged, because the beam tube adopts the negative pressure to get gas, the gas of outside of tubes will sneak into intraductally, causes the sample gas of gathering impure, and simultaneously, the falling stone still can pound flat sampling beam tube, causes the beam tube to block up, can't gather sample gas. The data of detection and analysis is inaccurate, the real gas environment in the pit cannot be reflected, in addition, some special detection points in some cases cannot lay a beam tube to the vicinity of a detection point, and the gas at the point cannot be detected by the micro-chromatograph.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a manual sampling device of micro-chromatograph is damaged, is extruded at beam tube, carries out manual sampling analysis when causing gas leakage or jam, can not influence normal daily detection, can not influence normal production.
The manual micro-chromatograph sample feeding device comprises a micro-chromatograph body, wherein a sample feeding interface is arranged on the micro-chromatograph body; a first end of the tee joint is connected with the sample inlet interface through a pipeline, and a second end of the tee joint is connected with the automatic sample inlet pipe; the sampling pump is provided with a first branch pipe at the air inlet end and a second branch pipe at the air outlet end, and the second branch pipe is connected with the third end of the tee joint; the electromagnetic valve is arranged on the second branch pipe, and the second electromagnetic valve is arranged on the automatic sampling pipe.
The sampling pump, the first electromagnetic valve and the second electromagnetic valve can be connected with a control module in the micro-chromatograph body through leads, and the start, stop and on-off of the micro-chromatograph body are controlled by the control module in the micro-chromatograph body.
Preferably, still include explosion-proof housing, the micro-chromatograph body is fixed in the explosion-proof housing, be equipped with manual appearance interface on the explosion-proof housing, the first branch pipe other end and manual appearance interface connection of advancing.
The automatic sampling tube penetrates through the explosion-proof shell and is connected with the external beam tube.
Preferably, the water filter is further included, and the water filter is connected to the first branch pipe.
The water in the sampling gas can be filtered.
During manual sampling, a gas sample can be collected at a sampling point through the bladder gas sampler and then moved to a manual sample inlet interface of the explosion-proof shell of the micro chromatograph, a gas outlet of the bladder gas sampler is butted with the manual sample inlet interface, the sampling pump and the first electromagnetic valve are opened, and the second electromagnetic valve is closed, so that under the action of the sampling pump, the gas sample in the bladder gas sampler sequentially enters the sample inlet interface through the first branch pipe, the water filter and the second branch pipe, and the micro chromatograph body detects gas phase; when automatic sampling, make sampling pump and first solenoid valve all turn-offs, open the second solenoid valve, the gas sample gets into automatic appearance pipe along the tube bank after the micro-chromatograph body is opened, carries out gas detection.
The utility model has the advantages that: when the beam tube is damaged and extruded in the roadway to cause air leakage or blockage, or the beam tube cannot be laid near the measuring point, manual sample injection analysis is carried out, normal daily detection cannot be influenced, and normal production cannot be influenced.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment;
in the figure: 1. a micro-chromatography body; 2. a sample introduction interface; 3. a tee joint; 4. automatically feeding a sample tube; 5. a sampling pump; 6. a first branch pipe; 7. a second branch pipe; 8. a first solenoid valve; 9. a second solenoid valve; 10. an explosion-proof housing; 11. a manual sample introduction interface; 12. a water filter.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1, the manual micro-chromatography sample injection device of the present invention comprises a micro-chromatography body 1, a tee 3, a sampling pump 5, a first solenoid valve 8 installed on a second branch pipe 7, and a second solenoid valve 9 installed on an automatic sample injection pipe 4, wherein the micro-chromatography body 1 is provided with a sample injection interface 2; the first end of the tee joint is connected with the sample inlet interface 2 through a pipeline, and the second end of the tee joint is connected with the automatic sample inlet pipe 4; the inlet end of the sampling pump 5 is provided with a first branch pipe 6, the outlet end is provided with a second branch pipe 7, and the second branch pipe 7 is connected with the third end of the tee joint. The micro-chromatographic body 1 is fixed in the explosion-proof shell 10, a manual sample injection interface 11 is arranged on the explosion-proof shell 10, and the other end of the first branch pipe 6 is connected with the manual sample injection interface 11; the first branch pipe 6 is connected with a water filter 12.
The automatic sampling tube 4 penetrates through the explosion-proof shell 10 and is connected with an external beam tube; the water filter 12 filters water from the sampled gas. During manual sampling, a gas sample can be collected at a sampling point through the bladder gas collector and then moved to a manual sample inlet 11 of the explosion-proof shell 10, the gas outlet of the bladder gas collector is butted with the manual sample inlet 11, the sampling pump 5 and the first electromagnetic valve 8 are opened, and the second electromagnetic valve 9 is closed, so that under the action of the sampling pump 5, the gas sample in the bladder gas collector sequentially enters the sample inlet 2 through the first branch pipe 6, the water filter 12 and the second branch pipe 7, and the gas phase is detected by the micro-chromatographic body 1; when automatic sampling, make sampling pump 5 and first solenoid valve 8 all turn-offs, open second solenoid valve 9, the gas sample gets into automatic appearance pipe 4 along the tube bank in the same direction as the micro-chromatograph body 1 opens, carries out gas detection.
The utility model discloses a use as follows: during manual sampling, firstly, the gas sample is collected at a sampling point through the bladder gas sampler, then the bladder gas sampler is moved to a manual sample inlet interface of the explosion-proof shell, the gas outlet of the bladder gas sampler is butted with the manual sample inlet interface, the sampling pump and the first electromagnetic valve are opened, the second electromagnetic valve is closed, so that under the action of the sampling pump, the gas sample in the bladder gas sampler sequentially enters the sample inlet interface through the first branch pipe, the water filter and the second branch pipe, and the micro-chromatographic body detects gas phase.
Of course, the above description is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the embodiments of the present invention. The present invention is not limited to the above examples, and the technical field of the present invention is equivalent to the changes and improvements made in the actual range of the present invention, which should be attributed to the patent coverage of the present invention.
Claims (3)
1. The utility model provides a manual sampling device of micro-chromatogram, includes micro-chromatogram body (1), is equipped with on micro-chromatogram body (1) and advances kind interface (2), and its characterized in that still includes:
a first end of the tee joint (3) is connected with the sample inlet interface (2) through a pipeline, and a second end of the tee joint is connected with the automatic sample inlet pipe (4);
the sampling pump (5) is provided with a first branch pipe (6) at the air inlet end and a second branch pipe (7) at the air outlet end, and the second branch pipe (7) is connected with the third end of the tee joint;
a first solenoid valve (8) mounted on the second branch pipe (7);
and a second electromagnetic valve (9) arranged on the automatic sampling pipe (4).
2. The manual micro-chromatography sample injection device according to claim 1, characterized in that: still include explosion-proof housing (10), micro-chromatograph body (1) is fixed in explosion-proof housing (10), be equipped with manual kind interface (11) on explosion-proof housing (10), first branch pipe (6) other end is connected with manual kind interface (11).
3. The manual micro-chromatography sample injection device according to claim 1, characterized in that: the water filter (12) is further included, and the first branch pipe (6) is connected with the water filter (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020345881.1U CN211741172U (en) | 2020-03-18 | 2020-03-18 | Manual sample introduction device for micro-chromatography |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020345881.1U CN211741172U (en) | 2020-03-18 | 2020-03-18 | Manual sample introduction device for micro-chromatography |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211741172U true CN211741172U (en) | 2020-10-23 |
Family
ID=72853274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020345881.1U Expired - Fee Related CN211741172U (en) | 2020-03-18 | 2020-03-18 | Manual sample introduction device for micro-chromatography |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211741172U (en) |
-
2020
- 2020-03-18 CN CN202020345881.1U patent/CN211741172U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201023 Termination date: 20210318 |