CN221155846U - Circulating gas analysis filter - Google Patents
Circulating gas analysis filter Download PDFInfo
- Publication number
- CN221155846U CN221155846U CN202322863246.9U CN202322863246U CN221155846U CN 221155846 U CN221155846 U CN 221155846U CN 202322863246 U CN202322863246 U CN 202322863246U CN 221155846 U CN221155846 U CN 221155846U
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- CN
- China
- Prior art keywords
- sample
- outlet
- air inlet
- section
- pipe
- Prior art date
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- 238000004868 gas analysis Methods 0.000 title claims abstract description 14
- 238000002347 injection Methods 0.000 claims abstract description 34
- 239000007924 injection Substances 0.000 claims abstract description 34
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 238000004458 analytical method Methods 0.000 abstract description 11
- 239000002245 particle Substances 0.000 abstract description 8
- 239000000428 dust Substances 0.000 abstract description 7
- 229920000642 polymer Polymers 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 28
- 238000007599 discharging Methods 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 239000012495 reaction gas Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000009728 shiwei Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910001868 water Inorganic materials 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a circulating gas analysis filter, which comprises a sample injection joint, a filter screen fixing piece and a sample outlet joint; a filter screen is arranged in the filter screen fixing piece; two ends of the filter screen fixing piece are respectively connected with a sample injection connecting assembly and a sample discharge connecting assembly, an air outlet of the sample injection connector is communicated with an air inlet of the sample injection connecting assembly, and an air outlet of the sample discharge connecting assembly is communicated with an air inlet of the sample discharge connector. According to the utility model, the sampled circulating gas is filtered and then is introduced into the analysis instrument, so that polymer dust and particles in the circulating gas can be effectively removed, the pipeline blockage is reduced, the instrument damage is avoided, and the analysis efficiency and the accuracy are improved. Simultaneously, this device simple structure, convenient dismantlement can quick replacement filter screen, convenient to use.
Description
Technical field:
The utility model belongs to the technical field of gas detection, and particularly relates to a circulating gas analysis filter.
The background technology is as follows:
the circulating gas of the polyolefin device is the reaction gas for producing the polymerization product, and important impurities (components such as oxygen-containing compounds, carbon monoxide, carbon dioxide, water, oxygen and the like) in the circulating gas need to be monitored in real time in daily production and driving processes, and if the impurity content exceeds the standard, the reaction static fluctuation, the catalyst activity reduction, even the reaction termination or bursting and the like in the subsequent working section can be caused.
Because the circulating gas is reaction gas, a large amount of polymer dust and particles (the main components of the circulating gas are polyethylene and polypropylene high-molecular polymers, and the average particle size is 0.55-0.6 mm) exist in the circulating gas, and the polymer dust and the particles in the circulating gas enter an analysis instrument along with the sampled circulating gas, so that a pipeline is easy to block, the rapid and accurate analysis of gas components is greatly influenced, and even the instrument is damaged.
The utility model comprises the following steps:
The utility model aims to provide a circulating gas analysis filter which can filter sampled circulating gas and then introduce the filtered circulating gas into an analysis instrument, so that the problems are avoided.
The utility model is implemented by the following technical scheme:
A circulating gas analysis filter comprises a sample injection joint, a filter screen fixing piece and a sample outlet joint; the filter screen fixing piece is internally provided with a filter screen, stainless steel filter screens with different apertures can be used, and the filter screen fixing piece mainly plays a role in filtering polymer dust and particles; the filter screen mounting both ends are connected with respectively and advance appearance coupling assembling and go out appearance coupling assembling, advance the gas outlet of appearance joint with advance the air inlet intercommunication of appearance coupling assembling, go out appearance coupling assembling's gas outlet with go out the air inlet intercommunication that appearance connects. The sampled circulating gas enters the sample injection connector, then enters the filter screen fixing piece through the sample injection connecting assembly, enters the sample discharge connecting assembly after dust and particles are intercepted by the filter screen, and then is introduced into the field analysis instrument through the sample discharge connector.
Further, the sample injection connector is a double-end opening and closing type quick connector male connector, and the sample outlet connector is a double-end opening and closing type quick connector female connector. The device is convenient to communicate with a sampler and an analysis instrument, and in addition, a joint with two open ends and closed ends is selected, and after the connection is disconnected, the end part of the joint is automatically closed, so that a sample cannot escape.
Further, the filter screen fixing piece comprises an inner pipe and an outer pipe sleeved at the air inlet end of the inner pipe; the air outlet of the inner tube is communicated with the air inlet of the sample outlet connecting assembly, and the air inlet of the outer tube is communicated with the air outlet of the sample inlet connecting assembly; the filter screen is arranged at the air inlet of the inner tube. The structure is easy to disassemble and assemble, and the filter screen is convenient to replace rapidly.
Further, the outer tube comprises an outer tube air inlet section and an outer tube air outlet section, the inner diameter of the outer tube air inlet section is smaller than that of the outer tube air outlet section, the outer tube air inlet section is provided with external threads, and the outer tube air outlet section is provided with internal threads; the inner pipe comprises an inner pipe air inlet section and an inner pipe air outlet section, the inner diameter of the inner pipe air inlet section is larger than that of the inner pipe air outlet section, the inner pipe air inlet section is provided with external threads, and the inner pipe air outlet section is provided with external threads; the outer pipe air outlet section is in threaded connection with the inner pipe air inlet section.
Further, the sample injection connecting assembly comprises a sample injection connecting pipe and a sample injection nut sleeved on the sample injection connecting pipe; one end of the sample injection connecting pipe is inserted into the gas outlet of the sample injection joint, and the other end of the sample injection connecting pipe is inserted into the gas inlet section of the outer pipe; and the sample injection nut is in threaded connection with the air inlet section of the outer tube. The sample injection connecting pipe not only plays a role of connecting the sample injection joint and the filter screen fixing piece, but also provides a flowing space for circulating gas containing dust and particles.
Further, the sample discharging connecting assembly comprises a sample discharging connecting pipe and a sample discharging nut sleeved on the sample discharging connecting pipe; one end of the sample outlet connecting pipe is inserted into the air inlet of the sample outlet connector, and the other end of the sample outlet connecting pipe is inserted into the inner pipe air outlet section; and the sample outlet nut is in threaded connection with the air outlet section of the inner pipe.
The utility model has the advantages that:
The utility model provides a circulating gas analysis filter, which filters sampled circulating gas and then leads the filtered circulating gas into an analysis instrument, so that polymer dust and particles in the circulating gas can be effectively removed, the pipeline blockage is reduced, the instrument damage is avoided, and the analysis efficiency and the accuracy are improved. Simultaneously, this device simple structure, convenient dismantlement can quick replacement filter screen, convenient to use.
Description of the drawings:
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view showing the structure of a circulating gas analyzing filter according to an embodiment;
Fig. 2 is a structural exploded view of a circulating gas analyzing filter of an embodiment.
The drawings are as follows:
10. A sample introduction connector; 20. a sample introduction connecting component; 21. a sample injection connecting pipe; 22. a sample injection nut; 30. a filter screen fixing member; 31. an outer tube; 311. an outer tube air inlet section; 312. an outer tube air outlet section; 32. an inner tube; 321. an inner tube air inlet section; 322. an inner tube air outlet section; 40. a filter screen; 50. a sample outlet connecting component; 51. a sample outlet nut; 52. a sample outlet connecting pipe; 60. and (5) a sample outlet joint.
The specific embodiment is as follows:
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. In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. 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.
Examples
The circulating gas analysis filter comprises a sample injection connector 10, a filter screen fixing piece 30 and a sample outlet connector 60, wherein the sample injection connector 10 is a double-end opening and closing type quick connector male connector, the sample outlet connector 60 is a double-end opening and closing type quick connector female connector, and in the embodiment, the sample injection connector 10 and the sample outlet connector 60 are both purchased from a HAM-LET.
The gas outlet of the sample connector 10 is communicated with the gas inlet of the sample connection assembly 20, and the gas outlet of the sample connection assembly 50 is communicated with the gas inlet of the sample connector 60.
A 300 mesh stainless steel filter screen 40 is provided in the filter screen holder 30. The filter screen fixing member 30 comprises an inner tube 32 and an outer tube 31 sleeved at the air inlet end of the inner tube 32; the air outlet of the inner tube 32 is communicated with the air inlet of the sample outlet connecting assembly 50, and the air inlet of the outer tube 31 is communicated with the air outlet of the sample inlet connecting assembly 20; a filter screen 40 is provided at the air inlet of the inner tube 32. The outer tube 31 comprises an outer tube air inlet section 311 and an outer tube air outlet section 312, wherein the inner diameter of the outer tube air inlet section 311 is smaller than the inner diameter of the outer tube air outlet section 312, the outer tube air inlet section 311 is provided with external threads, and the outer tube air outlet section 312 is provided with internal threads; the inner tube 32 comprises an inner tube air inlet section 321 and an inner tube air outlet section 322, wherein the inner diameter of the inner tube air inlet section 321 is larger than that of the inner tube air outlet section 322, the inner tube air inlet section 321 is provided with external threads, and the inner tube air outlet section 322 is provided with external threads; the outer tube air outlet section 312 is threadedly connected to the inner tube air inlet section 321.
The sample injection connecting component 20 and the sample discharge connecting component 50 are respectively connected to two ends of the filter screen fixing component 30. The sample connection assembly 20 comprises a sample connection pipe 21 and a sample nut 22 sleeved on the sample connection pipe 21; one end of the sample injection connecting pipe 21 is inserted into the gas outlet of the sample injection joint 10, and the other end is inserted into the outer pipe gas inlet section 311; the sample introduction nut 22 is in threaded connection with the outer tube air inlet section 311. The sample discharging connecting assembly 50 comprises a sample discharging connecting pipe 52 and a sample discharging nut 51 sleeved on the sample discharging connecting pipe 52; one end of the sample outlet connecting pipe 52 is inserted into the air inlet of the sample outlet joint 60, and the other end is inserted into the inner pipe air outlet section 322; sample nut 51 is threadably coupled to inner tube outlet section 322.
When in use, the filter screen 40 is arranged in the filter screen fixing piece 30, then the sample injection connecting component 20, the sample injection connector 10, the sample outlet connecting component 50 and the sample outlet connector 60 are respectively arranged at two ends of the filter screen fixing piece 30, and then the sample injection connector 10 is connected to the air outlet of the circulating air sampler, and the sample outlet connector 60 is connected to the air inlet of the analysis instrument. In the embodiment, the sampler is a stainless steel passivated liner sampling steel bottle of Shiwei lock, and the analysis instrument is a DPT600 dew point analyzer or a POA200 micro oxygen analyzer of Feimedes.
The foregoing is only illustrative of the present utility model and is not to be construed as limiting thereof, but rather as various modifications, equivalent arrangements, improvements, etc., within the spirit and principles of the present utility model.
Claims (6)
1. The circulating gas analysis filter is characterized by comprising a sample injection joint, a filter screen fixing piece and a sample outlet joint; a filter screen is arranged in the filter screen fixing piece; the filter screen mounting both ends are connected with respectively and advance appearance coupling assembling and go out appearance coupling assembling, advance the gas outlet of appearance joint with advance the air inlet intercommunication of appearance coupling assembling, go out appearance coupling assembling's gas outlet with go out the air inlet intercommunication that appearance connects.
2. The circulating gas analysis filter of claim 1, wherein the sample introduction connector is a double-ended quick connector male connector, and the sample outlet connector is a double-ended quick connector female connector.
3. The circulating gas analysis filter of claim 1, wherein the filter screen fixing member comprises an inner tube and an outer tube sleeved at the air inlet end of the inner tube; the air outlet of the inner tube is communicated with the air inlet of the sample outlet connecting assembly, and the air inlet of the outer tube is communicated with the air outlet of the sample inlet connecting assembly; the filter screen is arranged at the air inlet of the inner tube.
4. A circulating gas analysis filter according to claim 3, wherein the outer tube comprises an outer tube inlet section and an outer tube outlet section, the inner diameter of the outer tube inlet section being smaller than the inner diameter of the outer tube outlet section, the outer tube inlet section being provided with external threads, the outer tube outlet section being provided with internal threads; the inner pipe comprises an inner pipe air inlet section and an inner pipe air outlet section, the inner diameter of the inner pipe air inlet section is larger than that of the inner pipe air outlet section, the inner pipe air inlet section is provided with external threads, and the inner pipe air outlet section is provided with external threads; the outer pipe air outlet section is in threaded connection with the inner pipe air inlet section.
5. The circulating gas analysis filter of claim 4, wherein the sample connection assembly comprises a sample connection pipe and a sample nut sleeved on the sample connection pipe; one end of the sample injection connecting pipe is inserted into the gas outlet of the sample injection joint, and the other end of the sample injection connecting pipe is inserted into the gas inlet section of the outer pipe; and the sample injection nut is in threaded connection with the air inlet section of the outer tube.
6. The circulating gas analysis filter of claim 4, wherein the sample outlet connection assembly comprises a sample outlet connection pipe and a sample outlet nut sleeved on the sample outlet connection pipe; one end of the sample outlet connecting pipe is inserted into the air inlet of the sample outlet connector, and the other end of the sample outlet connecting pipe is inserted into the inner pipe air outlet section; and the sample outlet nut is in threaded connection with the air outlet section of the inner pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322863246.9U CN221155846U (en) | 2023-10-24 | 2023-10-24 | Circulating gas analysis filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322863246.9U CN221155846U (en) | 2023-10-24 | 2023-10-24 | Circulating gas analysis filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221155846U true CN221155846U (en) | 2024-06-18 |
Family
ID=91444329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322863246.9U Active CN221155846U (en) | 2023-10-24 | 2023-10-24 | Circulating gas analysis filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221155846U (en) |
-
2023
- 2023-10-24 CN CN202322863246.9U patent/CN221155846U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |