CN220386071U - Filtering device of gas chromatograph - Google Patents
Filtering device of gas chromatograph Download PDFInfo
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- CN220386071U CN220386071U CN202321894669.0U CN202321894669U CN220386071U CN 220386071 U CN220386071 U CN 220386071U CN 202321894669 U CN202321894669 U CN 202321894669U CN 220386071 U CN220386071 U CN 220386071U
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- gas chromatograph
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- 238000001914 filtration Methods 0.000 title claims abstract description 38
- 238000004140 cleaning Methods 0.000 claims abstract description 56
- 239000012535 impurity Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 5
- 239000011148 porous material Substances 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- 239000013049 sediment Substances 0.000 abstract description 2
- 230000001680 brushing effect Effects 0.000 abstract 1
- 238000005406 washing Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to the technical field of gas chromatographs, in particular to a filtering device of a gas chromatograph, which comprises a gas chromatograph main body and a sample inlet, wherein a suction pump is communicated above the sample inlet through a guide pipe, and a filtering mechanism for filtering impurities in a sample is arranged at the air inlet pipe end of the suction pump; the filtering mechanism comprises a filter cylinder detachably connected to the upper surface of the gas chromatograph main body, a sample inlet pipe is arranged at the top end of the filter cylinder, two filter plates which are symmetrically arranged are arranged in the filter cylinder, the two filter plates are distributed up and down, and the filter pore diameter of the filter plate close to the sample inlet is smaller than that of the filter plate above the sample inlet; the filter mechanism also comprises a cleaning component for cleaning the filter material in the filter cartridge and a disassembling component for disassembling and assembling the filter plate. Solves the problems that when the brush is used for brushing the sediment on the filter plate, the texture of the brush hair is harder, so that scratches and scratches are easily formed on the surface of the filter plate, and the filtering effect and the service life of the filter plate are reduced.
Description
Technical Field
The utility model relates to the technical field of gas chromatographs, in particular to a filtering device of a gas chromatograph.
Background
The gas chromatograph is an analytical instrument for separating, qualitatively and quantitatively organic compounds, the working principle is that a mixture is separated into single substances, the types and the contents of the compounds are determined by detecting the movement speed and the time of the single substances in a separation column, the gas chromatograph mainly comprises a sample processing system, a sample injector, a chromatographic column, a detector and the like, wherein the sample injector is a device for injecting a sample to be detected into the gas chromatograph, and in order to protect the chromatographic column, a filter is arranged outside the sample injector and is needed for filtering the macromolecular substances in the large sample to be detected, which are injected into the gas chromatograph.
The prior patent publication number is: CN218794684U discloses a filter equipment of gas chromatograph, which comprises a housin, the bottom of shell is equipped with the gas chromatograph main part, one side of shell is fixed with the aspirator pump, be fixed with the pipe on the blast pipe of aspirator pump, the one end that the aspirator pump was kept away from to the pipe extends to in the sample inlet of gas chromatograph main part, the top of shell is fixed with the intake pipe, be equipped with gas passage in the shell, two recesses have been seted up on the shell, be equipped with two magnets in the gas passage, all be equipped with the support in two recesses, the equal integrated into one piece in top of two supports has the dog, the bottom of two supports is all rotated and is connected with the clamp plate, the logical groove has all been seted up on two supports and the clamp plate, be equipped with first filter screen between support and the clamp plate that is close to the intake pipe, be equipped with the second filter screen between support and the clamp plate that keep away from the intake pipe. The filtering device of the gas chromatograph main body can filter large particles, and is convenient for the replacement of the first filter screen and the second filter screen.
In this patent, when the dust is more on the first filter screen, drive the cleaning brush through the motor and rotate, utilize the cleaning brush to clear up first filter screen, avoid first filter screen to block up to utilize the collection box to collect the dust that falls down from first filter screen, because granule, moisture etc. suspended in the filter mainly used filtration sample, the texture of brush is harder can produce different frictional force and pressure to the filter screen, leads to appearing scraping flower, mar etc. on the filter screen surface, reduced filter effect and the life of filter screen.
Disclosure of Invention
In order to make up for the defects, the utility model provides the following technical scheme: the filtering device of the gas chromatograph comprises a gas chromatograph main body and a sample inlet, wherein a suction pump is communicated above the sample inlet through a guide pipe, and a filtering mechanism for filtering impurities in a sample is arranged at the air inlet pipe end of the suction pump; the filtering mechanism comprises a filter cylinder detachably connected to the upper surface of the gas chromatograph main body, a sample inlet pipe is arranged at the top end of the filter cylinder, two filter plates which are symmetrically arranged are arranged in the filter cylinder, the two filter plates are distributed up and down, and the filter pore diameter of the filter plate close to the sample inlet is smaller than that of the filter plate above the sample inlet; the filter mechanism also comprises a cleaning component for cleaning the filter material in the filter cartridge and a disassembling component for disassembling and assembling the filter plate.
Preferably, the cleaning component comprises a cleaning nozzle arranged outside the filter cartridge, the cleaning nozzle and the filter cartridge are integrally formed, a humidity sensor is arranged on the inner wall of the filter cartridge and used for monitoring the humidity condition inside the filter cartridge, a drain pipe is arranged on the side face of the filter cartridge, and the height of the drain pipe is lower than that of an air inlet pipe of the suction pump.
Preferably, the front end of the cleaning nozzle enters the filter cartridge, the cleaning nozzle is located at the upper position of the two filter plates, the tail end of the cleaning nozzle is communicated with a connecting pipe, and the connecting pipe can be connected with a pump body connected with a storage vat and is used for conveying cleaning liquid.
Preferably, a fan is arranged on the side of the filter cartridge, an air outlet of the fan is communicated with the inside of the filter cartridge through an air inlet pipe, and the connecting position of the air inlet pipe and the filter cartridge is higher than the height of the cleaning nozzle.
Preferably, the dismounting component comprises two bearing plates fixed on the outer wall of the filter cylinder and corresponding to the filter plates, the filter plates are slidably connected in the bearing plates, and the outer side surfaces of the filter plates are detachably connected with the bearing plates through buckles.
Preferably, the inner wall of the bearing plate is fixed with a plurality of springs which are arranged in a straight line array, the other ends of the springs are fixed with the same abutting plate, and the abutting plate is contacted with the side face of the filter plate.
Advantageous effects
Compared with the prior art, the utility model provides a filtering device of a gas chromatograph, which has the following beneficial effects:
through setting up the cartridge filter, to the impurity that pours into the sample contained in the gas chromatograph into and filter, protection chromatographic column and detector, when the long deposit that appears of filter live time in the cartridge filter, utilize the washing part to accomplish the washing of filter with the mode of washing in the cartridge filter, and the mode of washing can reduce the scraping, the wearing and tearing that the filter surface received, improves the filter effect of filter.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:
FIG. 1 is a schematic perspective view of a gas chromatograph body according to the present utility model;
FIG. 2 is a schematic perspective view of a filter mechanism according to the present utility model;
FIG. 3 is a partial cross-sectional view of a cleaning element according to the present utility model;
fig. 4 is a partial cross-sectional view of the detachable component of the present utility model.
Reference numerals illustrate:
1. a gas chromatograph body; 2. a sample inlet; 3. a getter pump; 4. a filtering mechanism; 41. a filter cartridge; 42. a sample inlet tube; 43. a filter plate; 44. cleaning the component; 45. assembling and disassembling components; 441. cleaning the nozzle; 442. a humidity sensor; 443. a drain pipe; 444. a connecting pipe; 445. a blower; 451. a carrying plate; 452. and (3) abutting against the plate.
Detailed Description
The embodiments of the present application will be described in detail below with reference to the accompanying drawings and examples, so that the implementation process of how the technical means are applied to solve the technical problems and achieve the technical effects of the present application can be fully understood and implemented accordingly.
Fig. 1-4 show a filtering device of a gas chromatograph according to an embodiment of the present utility model, including a gas chromatograph main body 1 and a sample inlet 2, wherein a suction pump 3 is connected above the sample inlet 2 through a conduit, and a filtering mechanism 4 for filtering impurities in a sample is arranged at an air inlet pipe end of the suction pump 3; the filtering mechanism 4 comprises a filter cylinder 41 detachably connected to the upper surface of the gas chromatograph main body 1, a sample inlet pipe 42 is arranged at the top end of the filter cylinder 41, two symmetrically arranged filter plates 43 are arranged in the filter cylinder 41, the two filter plates 43 are distributed up and down, and the filter pore diameter of the filter plate 43 close to the sample inlet 2 is smaller than that of the filter plate 43 above the filter plate 43; the filter mechanism 4 further includes a cleaning member 44 for cleaning the filter material in the filter cartridge 41, and a detachable member 45 for detaching and attaching the filter plate 43.
In actual use, pour into the sample into the gas chromatograph from the sampling tube 42, open the suction pump 3, make the sample filter in the cartridge filter 41 behind the filter 43, get into in the sample inlet 2 of gas chromatograph, thereby realize the filtration that contains impurity in the sample, after many times filtration, utilize cleaning element 44 to accomplish the washing to filter 43 in cartridge filter 41, improve filter equipment's use convenience, when the different samples of injection, probably contain different impurity or macromolecular substance in the sample, accessible dismouting part 45 is dismantled filter 43 fast, and install suitable filter 43 and filter, filter equipment's application range has been enlarged.
Specifically, the cleaning component 44 includes a cleaning nozzle 441 disposed outside the filter cartridge 41, the cleaning nozzle 441 and the filter cartridge 41 are integrally formed, a humidity sensor 442 is disposed on an inner wall of the filter cartridge 41 and used for monitoring the humidity condition inside the filter cartridge 41, a drain 443 is disposed on a side surface of the filter cartridge 41, and the height of the drain 443 is lower than that of the air inlet pipe of the suction pump 3.
In the actual use process, when the filter cartridge 41 works for a period of time, the filter plate 43 is easy to be blocked, the filtering effect is affected, cleaning liquid for cleaning the filter plate 43 is sprayed into the filter cartridge 41 through the cleaning nozzle 441, the cleaning liquid is used for flushing sediment and dirt on the surface of the filter plate 43, the flushed sewage is discharged through the drain pipe 443, after the cleaning is finished, the humidity condition in the filter cartridge 41 is monitored through the humidity sensor 442, and whether the internal environment of the filter cartridge 41 after the cleaning is suitable for injecting samples or not is conveniently judged.
More specifically, the front end of the cleaning nozzle 441 enters the filter cartridge 41, and the cleaning nozzle 441 is located at a position above the two filter plates 43, and the end of the cleaning nozzle 441 is communicated with a connecting pipe 444, and the connecting pipe 444 can be connected with a pump body connected with a storage bucket for conveying cleaning liquid.
In actual use, when the inside of the filter cartridge 41 needs to be cleaned by the cleaning nozzle 441, the connecting pipe 444 at the tail end of the cleaning nozzle 441 is connected with the storage barrel storing the cleaning liquid, the cleaning liquid is sprayed out from the cleaning nozzle 441 through the pump body, the position of the cleaning nozzle 441 is higher than that of the two filter plates 43, the filter plates 43 are conveniently washed, and the cleaning effect is improved.
More specifically, a fan 445 is disposed at the side of the filter cartridge 41, an air outlet of the fan 445 is communicated with the inside of the filter cartridge 41 through an air inlet pipe, and a connection position of the air inlet pipe and the filter cartridge 41 is higher than the cleaning nozzle 441.
In the actual use process, after the filter plate 43 is cleaned by the cleaning nozzle 441, sewage is discharged through the drain pipe 443, the fan 445 is turned on, so that external air enters the filter cartridge 41, the flowing wind is used for reducing the humidity inside the filter cartridge 41 until the internal environment is suitable for injecting samples, the connection position of the air inlet pipe and the filter cartridge 41 is higher than the cleaning nozzle 441, and the effective surface cleaning liquid can enter the air inlet pipe.
Specifically, the dismounting component 45 includes two bearing plates 451 fixed on the outer wall of the filter cartridge 41 and corresponding to the filter plates 43, the filter plates 43 are slidably connected in the bearing plates 451, and the outer side surfaces of the filter plates 43 are detachably connected with the bearing plates 451 through buckles.
In the actual use, when the filter plate 43 with proper material or aperture is selected according to the difference of the injected samples, the filter plate 43 is far away from the bearing plate 451 through the buckle, and the filter plate 43 is moved outwards, so that the filter plate 43 is detached and installed.
More specifically, the inner wall of the bearing plate 451 is fixed with a plurality of springs arranged in a line array, the other end of the springs is fixed with the same abutting plate 452, and the abutting plate 452 contacts with the side surface of the filter plate 43.
In actual use, after the filter plate 43 is installed in the bearing plate 451, the filter plate 43 abuts against the contact plate 452, the springs shrink, when the filter plate 43 needs to be cleaned, the filter plate 43 is far away from the bearing plate 451 through the buckles, the filter plate 43 is reset through inward pushing of the filter plate 43, vibration cleaning of the filter plate 43 is achieved, and cleaning effect is improved.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a filter equipment of gas chromatograph, includes gas chromatograph main part (1), inlet (2), its characterized in that: a suction pump (3) is communicated above the sample inlet (2) through a guide pipe, and a filtering mechanism (4) for filtering impurities in a sample is arranged at the air inlet pipe end of the suction pump (3);
the filtering mechanism (4) comprises a filtering cylinder (41) detachably connected to the upper surface of the gas chromatograph main body (1), a sampling tube (42) is arranged at the top end of the filtering cylinder (41), two filtering plates (43) which are symmetrically arranged are arranged in the filtering cylinder (41), the two filtering plates (43) are distributed up and down, and the filtering pore diameter of the filtering plate (43) which is close to the sampling port (2) is smaller than that of the filtering plate (43) above the filtering plate;
the filter mechanism (4) further includes a cleaning member (44) for cleaning the filter material in the filter cartridge (41) and a detachable member (45) for detaching and attaching the filter plate (43).
2. The gas chromatograph filtering device according to claim 1, characterized in that: the cleaning component (44) comprises a cleaning nozzle (441) arranged outside the filter cartridge (41), the cleaning nozzle (441) and the filter cartridge (41) are integrally formed, a humidity sensor (442) is arranged on the inner wall of the filter cartridge (41) and used for monitoring the humidity condition inside the filter cartridge (41), a drain pipe (443) is arranged on the side face of the filter cartridge (41), and the height of the drain pipe (443) is lower than that of an air inlet pipe of the suction pump (3).
3. A gas chromatograph filter according to claim 2, characterized in that: the front end of the cleaning nozzle (441) enters the filter cartridge (41), the cleaning nozzle (441) is located at the upper position of the two filter plates (43), the tail end of the cleaning nozzle (441) is communicated with a connecting pipe (444), and the connecting pipe (444) can be connected with a pump body connected with a storage vat and is used for conveying cleaning liquid.
4. A gas chromatograph filter according to claim 3, wherein: a fan (445) is arranged on the side of the filter cartridge (41), an air outlet of the fan (445) is communicated with the inside of the filter cartridge (41) through an air inlet pipe, and the connecting position of the air inlet pipe and the filter cartridge (41) is higher than the cleaning nozzle (441).
5. The gas chromatograph filtering device according to claim 1, characterized in that: the assembly and disassembly parts (45) comprise two bearing plates (451) fixed on the outer wall of the filter cylinder (41) and corresponding to the filter plates (43), the filter plates (43) are slidably connected in the bearing plates (451), and the outer side surfaces of the filter plates (43) are detachably connected with the bearing plates (451) through buckles.
6. The gas chromatograph filter apparatus according to claim 5, wherein: the inner wall of the bearing plate (451) is fixed with a plurality of springs which are arranged in a straight line array, the other ends of the springs are fixed with the same abutting plate (452), and the abutting plate (452) is contacted with the side face of the filter plate (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321894669.0U CN220386071U (en) | 2023-07-19 | 2023-07-19 | Filtering device of gas chromatograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321894669.0U CN220386071U (en) | 2023-07-19 | 2023-07-19 | Filtering device of gas chromatograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220386071U true CN220386071U (en) | 2024-01-26 |
Family
ID=89611368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321894669.0U Active CN220386071U (en) | 2023-07-19 | 2023-07-19 | Filtering device of gas chromatograph |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220386071U (en) |
-
2023
- 2023-07-19 CN CN202321894669.0U patent/CN220386071U/en active Active
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