CN209215303U - It is a kind of for detecting the chromatographic analysis device of stoste processing unit top gas ingredient - Google Patents
It is a kind of for detecting the chromatographic analysis device of stoste processing unit top gas ingredient Download PDFInfo
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- CN209215303U CN209215303U CN201822143676.2U CN201822143676U CN209215303U CN 209215303 U CN209215303 U CN 209215303U CN 201822143676 U CN201822143676 U CN 201822143676U CN 209215303 U CN209215303 U CN 209215303U
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Abstract
The utility model discloses a kind of for detecting the chromatographic analysis device of stoste processing unit top gas ingredient, including shell and it is mounted on the gas chromatograph of case top, the bottom of the shell is provided with needle valve assembly, the enclosure interior is provided with pneumatic seat, the pneumatic seat is connected with tub by shaft, annular is provided with several chromatographic columns in the tub, the chromatographic column connects gas chromatograph by pipeline, and the top spiral of the chromatographic column is equipped with intake valve, detector is provided on the intake valve, the column bottom is connected with micro-sampling pin by pipeline, and the micro-sampling pin and needle valve assembly are on the same axis, the tub is installed inside housings by transposer, realize the multiple accurate sampling of multi-color spectrum column, the steam avoided in detection process influences.
Description
Technical field
It is specially a kind of for detecting stoste processing unit top gas ingredient the utility model relates to natural gas field
Chromatographic analysis device.
Background technique
The production of normal mixture body mostly uses a kind of high-purity gas to make carrier gas and adds one or more of other height again
Pure gas is formulated.The preparation method of calibrating gas mainly has weighing method, partial pressure method, volumetric method, osmosis, saturation, electricity
Solution, exponential dilution method, flow-rate ratio mixing method etc. are divided into static volumetric method and Devince By Dynamic Gas Ration Method from the angle of aerodynamics.
Standard solution preparation mostly uses the methods of volumetric method, neutralisation, oxidation-reduction method, compleximetry；And weighing method, partial pressure method,
The preparation method and appearance of the calibrating gas such as volumetric method, osmosis, saturation, electrolysis method, exponential dilution method, flow-rate ratio mixing method
The preparation method of the standard solution such as amount method, neutralisation, oxidation-reduction method, compleximetry, not applicable definite value trace amounts of methane two
The production of the water-soluble gas standard test solution of carbonoxide hydrogen sulfide ternary, at present specifically for definite value trace amounts of methane carbon dioxide sulphur
Change the production program or blank of the water-soluble gas standard solution of hydrogen ternary；
And it needs to establish argon gas to obtain the water-soluble gas standard solution of definite value trace amounts of methane carbon dioxide hydrogen sulfide ternary
Working environment, then in such circumstances by high purity water carry out oxidation precipitation, filtering, heating, purging replace, obtain without vulcanization
The stoste of the object gas such as hydrogen, carbon dioxide and methane, then vacuum outgas is carried out to stoste, by gas micro-sampling pin to original
The hydrogen sulfide of particular magnitude, carbon dioxide, methane gas are added in liquid and is allowed to be dissolved in stoste, it is final to obtain definite value trace
Methane and carbon dioxide hydrogen sulfide Water Soluble Gas standard test solution, and by gas chromatographic detection gas content, if detecting dioxy
Change carbon, then Repeat-heating, if detecting methane, repeats to purge, if detecting hydrogen sulfide, repeated oxidation settling step, if
Methane, carbon dioxide, hydrogen sulfide can't detect；
Existing gas chromatograph there is a problem of when carrying out the gas detection in the working environment it is following；
(1) need to carry out multiple gas purging detection during detecting in some cycles, and during detecting
Only use a gas chromatographic column mostly and detected, and when carrying out multiple gas sample detection, gas chromatographic column it is residual
The gas stayed can not then have the influence of gas in residual argon gas by outflow；
(2) stoste processing unit carries out in heating process high purity water, and excessive vapor is easily accessible in pipeline, and
Condensation vapor is on duct wall during cooling, and in the sampling for carrying out microsampling needle again, gas is brought into gas phase color
It composes in column, causes the damage of detection machine or due to causing gas detection itself to judge inaccuracy in the adhesiveness of steam.
Summary of the invention
In order to overcome the shortcomings of prior art, the utility model provides a kind of for detecting at the top of stoste processing unit
The chromatographic analysis device of gas componant can effectively solve the problem of background technique proposes.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
It is a kind of for detecting the chromatographic analysis device of stoste processing unit top gas ingredient, including shell and be mounted on
The gas chromatograph of case top, the bottom of the shell are provided with needle valve assembly, and the enclosure interior is provided with pneumatic seat, institute
It states pneumatic seat and tub is connected with by shaft, annular is provided with several chromatographic columns in the tub, and the chromatographic column is logical
Piping connects gas chromatograph, and the top spiral of the chromatographic column is equipped with intake valve, and inspection is provided on the intake valve
Device is surveyed, the column bottom is connected with micro-sampling pin by pipeline, and the micro-sampling pin and needle valve assembly are same
On axis, the tub is installed inside housings by transposer.
Further, several described intake valves are connected with vacuum pump by being always in charge of, and described are always in charge of intermediate setting
There is check valve.
Further, the transposer includes the cunning pawl set being fixedly set at the top of tub, and is fixedly mounted on shell
Push rod on internal wall, the shaft it is axially extending go out tub shaft on be set with spring, and the both ends difference of the spring
It is fixedly connected on the inner wall of tub bottom and shell.
Further, the needle valve assembly is connected in stoste processing unit by pipeline.
Further, the needle valve assembly, which is located in the inner wall of shell, is provided with drying tube, and the drying tube is in spindle
Shape.
Compared with prior art, the utility model has the beneficial effects that
Gas chromatograph in the utility model carries out the sampling of a micro-sampling pin within the predetermined time, while every
The secondary detection that gas is carried out using different chromatographic columns is taken caused by internal argon gas residual to reduce after primary sample
Sample volume change, when being sampled, is pneumatically stretched to avoid impacting the detection accuracy of foreign gas by being provided with
The shaft of the pneumatic seat of contracting bar pushes tub, so that micro-sampling pin and needle valve assembly contact in tub, micro-sampling pin thorn
Enter in needle valve assembly, argon gas introduces the gas in stoste processing unit as drainage gas, and passes through the testing number in detector
According to gas chromatograph is sent into, accurately analysis result is obtained.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the drying tube enlarged structure schematic diagram of the utility model；
Figure label:
1- shell；2- gas chromatograph；3- needle valve assembly；The pneumatic seat of 4-；5- shaft；6- tub；7- chromatographic column；8- is dry
Pipe；9- intake valve；10- detector；11- micro-sampling pin；12- transposer；13- is always in charge of；14- spring.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
As depicted in figs. 1 and 2, the utility model provides a kind of for detecting stoste processing unit top gas ingredient
Chromatographic analysis device, including shell 1 and the gas chromatograph 2 being mounted at the top of shell 1, the bottom of the shell 1 is provided with
Needle valve assembly 3, the shell 1 are internally provided with pneumatic seat 4, and the pneumatic seat 4 is connected with tub 6 by shaft 5, described
Annular is provided with several chromatographic columns 7 in tub 6, and the chromatographic column 7 connects gas chromatograph 2, and the chromatography by pipeline
The top spiral of column 7 is equipped with intake valve 9, and detector 10 is provided on the intake valve 9, and 7 bottom of chromatographic column passes through pipe
Road is connected with micro-sampling pin 11, and the micro-sampling pin 11 and needle valve assembly 3 are on the same axis, and the tub 6 passes through
Transposer 12 is mounted on inside shell 1.
Gas chromatograph 2 in the utility model carries out the sampling of a micro-sampling pin 11 within the predetermined time, together
When the detection of gas is carried out using different chromatographic column 7 every time, to reduce after primary sample, internal argon gas residual is caused
Sample volume variation, to avoid impacting the detection accuracy of foreign gas, when being sampled, by being provided with gas
The shaft 5 of the pneumatic seat 4 of dynamic telescopic rod pushes tub 6, so that the micro-sampling pin 11 and needle valve assembly 3 in tub 6 contact, it is micro-
It measures sample introduction needle 11 to be pierced into needle valve assembly 3, argon gas introduces the gas in stoste processing unit as drainage gas, and passes through detection
Detection data in device 10 is sent into gas chromatograph 2, obtains accurately analysis result；
Several described intake valves 9 are connected with vacuum pump by being always in charge of 13, and it is described be always in charge of among 13 be provided with list
To valve.
The transposer 12 includes the cunning pawl set for being fixedly set in 6 top of tub, and is fixedly mounted on the inner wall of the housing
On push rod, the shaft 5 it is axially extending go out tub 6 shaft on be set with spring 14, and the both ends difference of the spring 14
It is fixedly connected on the inner wall of 6 bottom of tub and shell 1.
After the completion of sampling, the driving force of the Pneumatic extension bar in pneumatic seat 4 is cancelled, the bullet that the bottom of tub 6 is provided with
Spring 14, is sprung back, and under the action of transposer, carries out the transposition of a chromatographic column, the essence of the transposer 12
Working principle be similar to cylinder pen springing structure.
The needle valve assembly 3 is connected in stoste processing unit by pipeline.
Needle valve assembly 3 in the utility model, which is located in the inner wall of shell 1, is provided with drying tube 8, and the drying tube 8 is in
Fusiform can do the steam in the gas carried in the stoste processing unit of heating by fusoid drying tube 8
It is dry, and do not absorb the detection gas in gas, it ensure that the accuracy in detection process, fusoid drying tube 8 can be into
The expansion into drying tube 8 of gas of row, to accelerate the process of gas dry.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
Claims (5)
1. a kind of for detecting the chromatographic analysis device of stoste processing unit top gas ingredient, including shell (1) and installation
The bottom of gas chromatograph (2) at the top of shell (1), the shell (1) is provided with needle valve assembly (3), it is characterised in that: institute
It states shell (1) to be internally provided with pneumatic seat (4), the pneumatic seat (4) is connected with tub (6), the cylinder by shaft (5)
Annular is provided with several chromatographic columns (7) on frame (6), and the chromatographic column (7) connects gas chromatograph (2) by pipeline, and institute
The top spiral for stating chromatographic column (7) is equipped with intake valve (9), is provided with detector (10), the chromatography on the intake valve (9)
Column (7) bottom is connected with micro-sampling pin (11) by pipeline, and the micro-sampling pin (11) and needle valve assembly (3) are same
On axis, the tub (6) is mounted on shell (1) inside by transposer (12).
2. it is according to claim 1 a kind of for detecting the chromatographic analysis device of stoste processing unit top gas ingredient,
It is characterized by: several described intake valves (9) are connected with vacuum pump by being always in charge of (13), and described always it is in charge of (13) centre
It is provided with check valve.
3. it is according to claim 1 a kind of for detecting the chromatographic analysis device of stoste processing unit top gas ingredient,
It is characterized by: the transposer (12) includes the cunning pawl set being fixedly set at the top of tub (6), and it is fixedly mounted on shell
Push rod on internal wall, the shaft (5) it is axially extending go out tub (6) shaft on be set with spring (14), and the spring
(14) both ends are respectively fixedly connected on the inner wall of tub (6) bottom and shell (1).
4. it is according to claim 1 a kind of for detecting the chromatographic analysis device of stoste processing unit top gas ingredient,
It is characterized by: the needle valve assembly (3) is connected in stoste processing unit by pipeline.
5. it is according to claim 1 a kind of for detecting the chromatographic analysis device of stoste processing unit top gas ingredient,
It is provided with drying tube (8) it is characterized by: the needle valve assembly (3) is located in the inner wall of shell (1), and the drying tube (8)
In fusiform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822143676.2U CN209215303U (en) | 2018-12-20 | 2018-12-20 | It is a kind of for detecting the chromatographic analysis device of stoste processing unit top gas ingredient |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822143676.2U CN209215303U (en) | 2018-12-20 | 2018-12-20 | It is a kind of for detecting the chromatographic analysis device of stoste processing unit top gas ingredient |
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| Publication Number | Publication Date |
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| CN209215303U true CN209215303U (en) | 2019-08-06 |
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| CN201822143676.2U Active CN209215303U (en) | 2018-12-20 | 2018-12-20 | It is a kind of for detecting the chromatographic analysis device of stoste processing unit top gas ingredient |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11841350B2 (en) | 2021-03-16 | 2023-12-12 | Bio-Rad Laboratories, Inc. | Dynamic axial compression for preparative columns using external compression |
-
2018
- 2018-12-20 CN CN201822143676.2U patent/CN209215303U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11841350B2 (en) | 2021-03-16 | 2023-12-12 | Bio-Rad Laboratories, Inc. | Dynamic axial compression for preparative columns using external compression |
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