CN219777578U - Gas chromatograph with sample gas filtering structure - Google Patents
Gas chromatograph with sample gas filtering structure Download PDFInfo
- Publication number
- CN219777578U CN219777578U CN202320724992.7U CN202320724992U CN219777578U CN 219777578 U CN219777578 U CN 219777578U CN 202320724992 U CN202320724992 U CN 202320724992U CN 219777578 U CN219777578 U CN 219777578U
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- gas
- gas chromatograph
- pipe
- filtering structure
- structure according
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- 238000001914 filtration Methods 0.000 title claims abstract description 18
- 238000004140 cleaning Methods 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 239000000428 dust Substances 0.000 claims description 17
- 244000309464 bull Species 0.000 claims description 10
- 230000017525 heat dissipation Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000012535 impurity Substances 0.000 abstract description 18
- 239000002245 particle Substances 0.000 abstract description 14
- 238000001514 detection method Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 5
- 238000002347 injection Methods 0.000 abstract description 4
- 239000007924 injection Substances 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 52
- 239000008187 granular material Substances 0.000 description 4
- 230000005526 G1 to G0 transition Effects 0.000 description 2
- 239000012159 carrier gas Substances 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 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
- 238000005192 partition Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a gas chromatograph with a sample injection gas filtering structure, and particularly relates to the technical field of gas chromatographs. According to the utility model, the large-particle impurities in the gas are filtered out through the two filter screens, so that the influence of the large-particle impurities on the detection precision of the gas chromatograph body on the gas is avoided, the transmission assembly is used for driving the two rotating shafts to rotate, the two rotating shafts respectively drive the cleaning brushes on the two rotating rods to rotate through the meshing assembly, the cleaning brushes can scrape off the large-particle impurities adhered to the surfaces of the filter screens in the rotating process, the influence of excessive large-particle impurities on the flow speed of the gas is avoided, and the gas detection device is simple in structure and very convenient to use.
Description
Technical Field
The utility model relates to the technical field of gas chromatographs, in particular to a gas chromatograph with a sample injection gas filtering structure.
Background
Gas chromatograph refers to a chromatographic instrument using gas as mobile phase. The principle is mainly to realize the separation of the mixture by utilizing the differences of the boiling point, the polarity and the adsorption property of the substances. The sample to be analyzed is brought into the chromatographic column by the inert gas after gasification in the gasification chamber, the column contains a liquid or solid stationary phase, and the components in the sample all tend to form a partition or adsorption equilibrium between the mobile phase and the stationary phase. Along with the flow of the carrier gas, the sample components are repeatedly distributed or adsorbed and desorbed in the motion, the components with large concentration are distributed in the carrier gas to flow out of the chromatographic column, and the components with large concentration are distributed in the fixed phase to flow out.
Because the gas to be detected mostly needs to be filtered and then enters the gas chromatograph for detection, and the gas chromatograph at present can be provided with a filter screen at the gas inlet of the gas chromatograph for filtering the gas in the use process, but in the long-term use process, the flow speed of the gas can be reduced due to the fact that large-particle impurities in the gas adhere to the filter screen, so that the filtering speed is reduced, the detection efficiency of the gas is affected, the filter screen structure is not easy to replace and clean, and the condition of blocking inside the gas inlet pipe can be caused.
Disclosure of Invention
In order to overcome the above-mentioned drawbacks of the prior art, the present utility model provides a gas chromatograph with a sample gas filtering structure, so as to solve the above-mentioned problems occurring in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a gas chromatograph with advance kind gaseous filtration, includes the gas chromatograph body, gas chromatograph body one side runs through and is equipped with the intake pipe, gas chromatograph body one side intercommunication is kept away from to the intake pipe has two semicircle pipes, is equipped with two annular plates that distribute about in the semicircle pipe, the annular plate is inside to be fixed to be equipped with the filter screen, and two filter screens are kept away from intake pipe one side and all are equipped with the bull stick, the bull stick is close to filter screen one side and is fixed to be equipped with the cleaning brush, and two bull stick tops all are connected with the pivot through the meshing subassembly, and two pivot tops all run through semicircle pipe top and extend to semicircle pipe outside, connect through drive assembly between two pivots, and two semicircle pipes are kept away from intake pipe one side and are run through and are equipped with the gas-supply pipe, and semicircle pipe bottom intercommunication that is located the gas-supply pipe below has the dust collection case.
In a preferred embodiment, the inner wall surfaces of the two semicircular pipes are provided with two caulking grooves which are distributed left and right, the caulking grooves on the two semicircular pipes are communicated one by one, the two annular plates are respectively arranged in the caulking grooves which are communicated one by one, the annular plates are convenient to install and detach, and the filter screen in the annular plates is detached.
In a preferred embodiment, the engagement assembly comprises two bevel gears, wherein the two bevel gears are sleeved on the rotating rod and the rotating shaft respectively, and the two bevel gears are engaged up and down so as to drive the two rotating rods to rotate at the same time.
In a preferred embodiment, two bull sticks keep away from filter screen one side and all are fixed and are equipped with the support, the support passes through screw and the semicircle pipe inner wall fixed connection that is located the gas-supply pipe top, conveniently unpacks bull stick and cleaning brush and clear up the change.
In a preferred embodiment, the transmission assembly comprises two belt pulleys, the two belt pulleys are respectively sleeved on the two rotating shafts, the two belt pulleys are connected through a belt, a micro motor is fixedly arranged at the top end of the rotating shaft close to one side of the gas pipe, and the micro motor is used for driving the two rotating shafts to rotate, so that the use is more time-saving and labor-saving.
In a preferred embodiment, a cover body is arranged at the top end of the semicircular tube above the gas transmission tube, the cover body is covered on the outer side of the miniature motor, the belt pulley and the belt, the cover body is fixedly connected with the semicircular tube through a first bolt, a heat dissipation hole is formed in the top end of the cover body, and the cover body is used for protecting the miniature motor, the belt pulley and the belt.
In a preferred embodiment, the inside fixed gauze that is equipped with of dust collection box, the gauze is established in the annular plate below that is close to gas-supply pipe one side, the export has been seted up to the dust collection box front end, articulated in the export has the closing plate, makes things convenient for the staff to handle the large granule impurity of collecting.
In a preferred embodiment, the rear sides of the two semicircular pipes are hinged, the front sides of the two semicircular pipes are fixedly provided with fixing plates, and the two fixing plates are fixedly connected through a plurality of second bolts, so that the two semicircular pipes can be conveniently disassembled for cleaning.
The utility model has the technical effects and advantages that:
according to the utility model, the large-particle impurities in the gas are filtered out through the two filter screens, so that the influence of the large-particle impurities on the detection precision of the gas chromatograph body on the gas is avoided, the transmission assembly is used for driving the two rotating shafts to rotate, the two rotating shafts respectively drive the cleaning brushes on the two rotating rods to rotate through the meshing assembly, the cleaning brushes can scrape off the large-particle impurities adhered to the surfaces of the filter screens in the rotating process, the influence of excessive large-particle impurities on the flow speed of the gas is avoided, and the gas detection device is simple in structure and very convenient to use.
Through micro motor drive pivot rotation, pass through belt and two belt pulley transmissions between two pivots, then two pivots drive the bull stick rotation through two bevel gears again respectively, the bull stick drives the cleaning brush and scrapes the brush to the filter screen surface, the big granule impurity of being scraped drops the dust collection incasement, gauze in the dust collection incasement can avoid gaseous direct flow to second filter screen one side, treat after the use, the closing plate just can be opened to the staff, handled the big granule impurity in the dust collection incasement, and can also unpack two semicircle pipes, the inside clearance of semicircle pipe.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a cross-sectional view of a semicircular tube of the present utility model;
FIG. 3 is a partial schematic view of the present utility model;
FIG. 4 is a cross-sectional view of the dust bin of the present utility model;
fig. 5 is a cross-sectional view of a semicircular tube of the present utility model.
The reference numerals are: 1. a gas chromatograph body; 2. an air inlet pipe; 3. a semicircular tube; 4. a ring plate; 5. a filter screen; 6. a rotating rod; 7. a cleaning brush; 8. a rotating shaft; 9. a gas pipe; 10. a dust collection box; 11. a caulking groove; 12. bevel gears; 13. a bracket; 14. a belt pulley; 15. a belt; 16. a micro motor; 17. a cover body; 18. a heat radiation hole; 19. gauze; 20. a sealing plate; 21. and a fixing plate.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to the accompanying drawings 1-5 of the specification, the utility model provides a gas chromatograph with a sample injection gas filtering structure, which comprises a gas chromatograph body 1, wherein one side of the gas chromatograph body 1 is provided with an air inlet pipe 2 in a penetrating way, one side of the air inlet pipe 2 far away from the gas chromatograph body 1 is communicated with two semicircular pipes 3, two ring plates 4 distributed left and right are arranged in the two semicircular pipes 3, filter screens 5 are fixedly arranged in the ring plates 4, one side of the two filter screens 5 far away from the air inlet pipe 2 is provided with a rotating rod 6, and one side of the rotating rod 6 close to the filter screens 5 is fixedly provided with a cleaning brush 7;
specifically, the inner wall surfaces of the two semicircular pipes 3 are provided with two caulking grooves 11 which are distributed left and right, the caulking grooves 11 on the two semicircular pipes 3 are communicated one by one, the two annular plates 4 are respectively arranged in the two groups of caulking grooves 11 which are communicated one by one, the annular plates 4 are convenient to mount and dismount, and the filter screen 5 in the annular plates 4 is dismounted;
the top of two bull sticks 6 all is connected with pivot 8 through the meshing subassembly, and two pivot 8 tops all run through semicircle pipe 3 top and extend to semicircle pipe 3 outsides, connect through drive assembly between two pivots 8, and two semicircle pipes 3 keep away from intake pipe 2 one side and run through and be equipped with gas-supply pipe 9, and semicircle pipe 3 bottom intercommunication that is located gas-supply pipe 9 below has dust-collecting box 10.
When the gas chromatograph is used, gas is conveyed into the two semicircular pipes 3 through the gas conveying pipe 9, is filtered through the two filter screens 5 in the semicircular pipes 3, is conveyed into the gas chromatograph body 1 from the gas inlet pipe 2 to be detected, and is filtered by using the two filter screens 5, so that the large-particle impurities in the gas chromatograph body 1 are prevented from influencing the detection precision of the gas, and meanwhile, the two rotating shafts 8 are driven to rotate by using the transmission assembly, the two rotating shafts 8 respectively drive the cleaning brushes 7 on the two rotating rods 6 to rotate through the meshing assembly, the cleaning brushes 7 can scrape the large-particle impurities adhered to the surfaces of the filter screens 5 in the rotating process, the flowing speed of the gas is prevented from being influenced by the excessive large-particle impurities, and the gas chromatograph is simple in structure and convenient to use.
Referring to the attached drawings 1-5 of the specification, the utility model provides a gas chromatograph with a sample injection gas filtering structure, the meshing assembly comprises two bevel gears 12, the two bevel gears 12 are respectively sleeved on a rotating rod 6 and a rotating shaft 8, the two bevel gears 12 are meshed up and down, so that the two rotating rods 6 can be conveniently driven to rotate simultaneously, a bracket 13 is fixedly arranged on one side, far away from a filter screen 5, of each rotating rod 6, the bracket 13 is fixedly connected with the inner wall of a semicircular pipe 3 above a gas transmission pipe 9 through screws, and the rotating rods 6 and a cleaning brush 7 can be conveniently detached for cleaning and replacement;
the transmission assembly comprises two belt pulleys 14, the two belt pulleys 14 are respectively sleeved on the two rotating shafts 8, the two belt pulleys 14 are connected through a belt 15, a micro motor 16 is fixedly arranged at the top end of the rotating shaft 8 close to one side of the gas pipe 9, the micro motor 16 is used for driving the two rotating shafts 8 to rotate, the transmission assembly is more time-saving and labor-saving in use, a cover 17 is arranged at the top end of the semicircular pipe 3 above the gas pipe 9, the cover 17 is covered on the outer sides of the micro motor 16, the belt pulley 14 and the belt 15, the cover 17 is fixedly connected with the semicircular pipe 3 through a first bolt, a heat dissipation hole 18 is formed at the top end of the cover 17, and the cover 17 is used for protecting the micro motor 16, the belt pulley 14 and the belt 15;
the inside fixed gauze 19 that is equipped with of dust collection box 10, gauze 19 establishes in the annular slab 4 below that is close to gas-supply pipe 9 one side, the export has been seted up to dust collection box 10 front end, it has closing plate 20 to articulate in the export, makes things convenient for the staff to handle the large granule impurity of collecting, articulates between two semicircle pipe 3 rear sides, and two semicircle pipe 3 front sides are all fixed and are equipped with fixed plate 21, through a plurality of second bolt fixed connection between two fixed plates 21, are convenient for unpack two semicircle pipe 3 and clear up.
The micro motor 16 is used for driving the rotating shafts 8 to rotate, the two rotating shafts 8 are driven by the belt 15 and the two belt pulleys 14, then the two rotating shafts 8 respectively drive the rotating rods 6 to rotate through the two bevel gears 12, the rotating rods 6 drive the cleaning brushes 7 to rotate to scrape the surfaces of the filter screens 5, scraped large particle impurities fall into the dust collection box 10, the gauze 19 in the dust collection box 10 can prevent gas from directly flowing to one side of the second filter screen 5, after the use is finished, a worker can open the sealing plate 20 to treat the large particle impurities in the dust collection box 10, and can disassemble the two semicircular pipes 3 to clean the interiors of the semicircular pipes 3.
Finally: the foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.
Claims (8)
1. Gas chromatograph with advance kind gas filtration structure, including gas chromatograph body (1), its characterized in that: the gas chromatograph comprises a gas chromatograph body (1), wherein one side of the gas chromatograph body (1) is provided with an air inlet pipe (2) in a penetrating way, one side, far away from the gas chromatograph body (1), of the air inlet pipe (2) is communicated with two semicircular pipes (3), two ring plates (4) distributed left and right are arranged in the two semicircular pipes (3), filter screens (5) are fixedly arranged in the ring plates (4), one side, far away from the air inlet pipe (2), of the two filter screens (5) is provided with a rotating rod (6), and one side, close to the filter screens (5), of the rotating rod (6) is fixedly provided with a cleaning brush (7);
two bull stick (6) top all is connected with pivot (8) through the meshing subassembly, and semicircle pipe (3) top is all run through on two pivot (8) top and extend to semicircle pipe (3) outside, connects through drive assembly between two pivot (8), and gas-supply pipe (9) are run through to be equipped with in one side that gas-supply pipe (2) were kept away from to two semicircle pipes (3), and semicircle pipe (3) bottom intercommunication that is located gas-supply pipe (9) below has dust collection box (10).
2. The gas chromatograph with a sample gas filtering structure according to claim 1, wherein: two caulking grooves (11) distributed left and right are formed in the inner wall surfaces of the two semicircular pipes (3), the caulking grooves (11) on the two semicircular pipes (3) are communicated one by one, and the two annular plates (4) are respectively arranged in the two groups of caulking grooves (11) which are communicated one by one.
3. The gas chromatograph with a sample gas filtering structure according to claim 1, wherein: the meshing assembly comprises two bevel gears (12), the two bevel gears (12) are respectively sleeved on the rotating rod (6) and the rotating shaft (8), and the two bevel gears (12) are meshed up and down.
4. The gas chromatograph with a sample gas filtering structure according to claim 1, wherein: two bull sticks (6) are kept away from filter screen (5) one side all fixedly and are equipped with support (13), support (13) are through screw and are located semicircle pipe (3) inner wall fixed connection of gas-supply pipe (9) top.
5. The gas chromatograph with a sample gas filtering structure according to claim 1, wherein: the transmission assembly comprises two belt pulleys (14), the two belt pulleys (14) are respectively sleeved on the two rotating shafts (8), the two belt pulleys (14) are connected through a belt (15), and a miniature motor (16) is fixedly arranged at the top end of the rotating shaft (8) close to one side of the gas transmission pipe (9).
6. The gas chromatograph with a sample gas filtering structure according to claim 5, wherein: the top end of the semicircular tube (3) above the air delivery tube (9) is provided with a cover body (17), the cover body (17) is covered outside the miniature motor (16), the belt pulley (14) and the belt (15), the cover body (17) is fixedly connected with the semicircular tube (3) through a first bolt, and the top end of the cover body (17) is provided with a heat dissipation hole (18).
7. The gas chromatograph with a sample gas filtering structure according to claim 1, wherein: the dust collection box is characterized in that a gauze (19) is fixedly arranged in the dust collection box (10), the gauze (19) is arranged below a ring plate (4) close to one side of the air delivery pipe (9), an outlet is formed in the front end of the dust collection box (10), and a sealing plate (20) is hinged in the outlet.
8. The gas chromatograph with a sample gas filtering structure according to claim 1, wherein: the rear sides of the two semicircular pipes (3) are hinged, the front sides of the two semicircular pipes (3) are fixedly provided with fixing plates (21), and the two fixing plates (21) are fixedly connected through a plurality of second bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320724992.7U CN219777578U (en) | 2023-04-04 | 2023-04-04 | Gas chromatograph with sample gas filtering structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320724992.7U CN219777578U (en) | 2023-04-04 | 2023-04-04 | Gas chromatograph with sample gas filtering structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219777578U true CN219777578U (en) | 2023-09-29 |
Family
ID=88130734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320724992.7U Active CN219777578U (en) | 2023-04-04 | 2023-04-04 | Gas chromatograph with sample gas filtering structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219777578U (en) |
-
2023
- 2023-04-04 CN CN202320724992.7U patent/CN219777578U/en active Active
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