CN220677137U - Inlet air filtering structure of oil-free vacuum compressor - Google Patents
Inlet air filtering structure of oil-free vacuum compressor Download PDFInfo
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- CN220677137U CN220677137U CN202322350305.2U CN202322350305U CN220677137U CN 220677137 U CN220677137 U CN 220677137U CN 202322350305 U CN202322350305 U CN 202322350305U CN 220677137 U CN220677137 U CN 220677137U
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- filter
- shell
- air inlet
- stage
- end cover
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- 238000001914 filtration Methods 0.000 title claims abstract description 51
- 229920000742 Cotton Polymers 0.000 claims abstract description 35
- 230000006835 compression Effects 0.000 claims abstract description 15
- 238000007906 compression Methods 0.000 claims abstract description 15
- 239000000428 dust Substances 0.000 claims abstract description 11
- 238000005192 partition Methods 0.000 claims abstract description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 48
- 238000004891 communication Methods 0.000 claims description 19
- 238000007789 sealing Methods 0.000 claims description 9
- 238000002955 isolation Methods 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000010985 leather Substances 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
- Compressor (AREA)
Abstract
The utility model discloses an air inlet filtering structure of an oil-free vacuum compressor, which comprises a filtering main shell, a first-stage filter, a second-stage filter and a compression ring, wherein the compression ring is used for fixing the first-stage filter and the second-stage filter in the filtering main shell; the first-stage filter comprises a first-stage air inlet end cover, a HEPA filter screen and a first-stage filter shell, wherein the HEPA filter screen is arranged in the first-stage filter shell, the first-stage air inlet end cover is buckled on the first-stage filter shell, an outer air inlet is arranged on the first-stage air inlet end cover, and dust partitions are distributed on the HEPA filter screen; the secondary filter comprises a secondary air inlet end cover, filter cotton and a secondary filter shell, wherein the filter cotton is arranged in the secondary filter shell, the secondary air inlet end cover is buckled on the secondary filter shell, and an interface exposed out of the filter main shell is arranged on the secondary filter shell; the inlet filter structure of the oil-free vacuum compressor is provided with a mounting via hole. The utility model prolongs the service life of the oil-free vacuum compressor and can be suitable for the complex areas of environmental working conditions.
Description
Technical Field
The utility model belongs to the technical field of components for compressors, and particularly relates to an air inlet filtering structure of an oil-free vacuum compressor.
Background
In the oxygen generating process of the oxygen generator, the oil-free vacuum compressor of the core part plays an important role; at present, an air inlet structure of an oilless vacuum compressor product applied to an oxygenerator in the prior art does not have a filtering function, and the compressor product cannot be used in a plateau area or an area with relatively complex environmental working conditions; because the air filter has no filtering function, a large amount of dust and sand can be sucked in a plateau or a sand-blown area, a clean air source cannot be effectively provided for the oxygenerator, and meanwhile, the sucked dust can cause irreversible damage to flexible material dynamic sealing parts such as leather cups and valve plates in the compressor; severely, the compressor cup can wear extremely and fail to seal, ultimately resulting in compression failure. Although the filter layer structure for filtering is added on the internal structural components of the compressor product, the filter effect is not obvious, and the compressor product is not applicable to a plateau area or an area with relatively complex environmental working conditions; the dust and sand can directly act on the valve plate and the valve chamber, so that the valve plate can be damaged and can not be reset or opened and closed; because dust particles sucked into gas can be rubbed between the leather cup and the cylinder wall at a high speed, fine or large marks of the leather cup can be scratched, so that dynamic sealing cannot be completely effective, and the service life of the compressor is reduced.
Disclosure of Invention
The utility model aims at the problems, overcomes the defects of the prior art, and provides an air inlet filtering structure of an oil-free vacuum compressor.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an oil-free vacuum compressor's filtration that admits air, includes filtration main casing, primary filter, secondary filter and clamp ring, primary filter and secondary filter intercommunication are installed in filtration main casing, and the clamp ring is connected on filtration main casing port, and the clamp ring is fixed in filtration main casing with primary filter and secondary filter;
the first-stage filter comprises a first-stage air inlet end cover, a HEPA filter screen and a first-stage filter shell, wherein the HEPA filter screen is arranged in the first-stage filter shell, the first-stage air inlet end cover is buckled on the first-stage filter shell, an external air inlet is formed in the first-stage air inlet end cover, and dust partitions are distributed on the HEPA filter screen;
the secondary filter comprises a secondary air inlet end cover, filter cotton and a secondary filter shell, wherein the filter cotton is arranged in the secondary filter shell, the secondary air inlet end cover is buckled on the secondary filter shell, and an interface exposed out of the filter main shell is arranged on the secondary filter shell;
and the air inlet filtering structure of the oil-free vacuum compressor is provided with a mounting through hole in a penetrating manner.
Further, the primary filter is located at the port of the main filtering shell, a sealing ring is arranged between the primary filter and the compression ring, and a groove for placing the sealing ring is formed in the primary air inlet end cover.
Further, a first communication port and a second communication port for communicating the primary filter and the secondary filter are respectively arranged on the primary filter shell and the secondary air inlet end cover, and the first communication port is connected with the second communication port in a matched mode.
Further, a mesh isolation plate is arranged in the secondary filter shell, and the filter cotton comprises primary activated carbon cotton and secondary refined activated carbon cotton; the mesh isolation plate divides the secondary filter shell into two part shell spaces, wherein primary activated carbon cotton is arranged in one part of shell space, and secondary refined activated carbon cotton is arranged in the other part of shell space.
Further, a second communication port is arranged on the secondary air inlet end cover corresponding to the upper part of the primary activated carbon cotton, and an interface is arranged on the secondary filter shell corresponding to the lower part of the secondary refined activated carbon cotton; the interface comprises a first interface and a second interface, and the first interface and the second interface are exposed out of the filtering main shell.
Compared with the prior art, the utility model has the beneficial effects that:
the air inlet filter structure of the oil-free vacuum compressor is formed by combining the filter main shell, the primary filter, the secondary filter and the compression ring, and can be well combined and installed on the air inlet structure of the oil-free vacuum compressor, so that the oil-free vacuum compressor has the function of filtering fine dust, and the primary filter and the secondary filter can realize effective filtration, thereby prolonging the service life of the oil-free vacuum compressor; and the oil-free vacuum compressor can be suitable for the areas with relatively complex working conditions in the plateau areas or the environment.
Drawings
Fig. 1 is a schematic diagram of an intake filtering structure of an oil-free vacuum compressor according to the present utility model.
Fig. 2 is a schematic diagram showing a disassembly structure of an intake filtering structure of an oil-free vacuum compressor according to the present utility model.
Fig. 3 is a schematic diagram of a primary filter of an intake filtering structure of an oil-free vacuum compressor according to the present utility model.
Fig. 4 is a schematic diagram showing a disassembly structure of a primary filter of an intake filtering structure of an oil-free vacuum compressor according to the present utility model.
Fig. 5 is a schematic diagram of a secondary filter of an intake filtering structure of an oil-free vacuum compressor according to the present utility model.
Fig. 6 is a schematic diagram showing a disassembled structure of a secondary filter of an intake filtering structure of an oil-free vacuum compressor according to the present utility model.
In the figure: 1 is a compression ring; 2 is a sealing ring; 3 is a first-stage filter; 4 is a two-stage filter; 5 is a filtering total shell; 6 is a mounting via; 7 is a first interface; 8 is a mesh isolation plate; 9 is a second interface; 10 is an external air inlet; 11 is a second communication port; 12 is a first communication port; 301 is a primary air intake end cap; 302 is a HEPA filter; 303 is a primary filtration housing; 401 is a secondary air inlet end cover; 402 is primary activated carbon cotton; 403 is secondary refined activated carbon cotton; 404 is a two-stage filtration housing.
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 fig. 1 to 6, an embodiment of the present utility model provides an intake air filtering structure of an oil-free vacuum compressor, which includes a main filtering housing 5, a primary filter 3, a secondary filter 4, and a compression ring 1, wherein the primary filter 3 is communicated with the secondary filter 4 and is installed in the main filtering housing 5, the compression ring 1 is connected to a port of the main filtering housing 5, and the compression ring 1 fixes the primary filter 3 and the secondary filter 4 in the main filtering housing 5; the primary filter 3 comprises a primary air inlet end cover 301, a HEPA filter screen 302 and a primary filter shell 303, wherein the HEPA filter screen 302 is arranged in the primary filter shell 303, the primary air inlet end cover 301 is buckled on the primary filter shell 303, the primary air inlet end cover 301 is provided with an arc-shaped mesh-type outer air inlet 10, dust partitions are distributed on the HEPA filter screen 302, and the dust partitions can filter dust and sand contained in gas which is precipitated into the compressor; the secondary filter 4 comprises a secondary air inlet end cover 401, filter cotton and a secondary filter shell 404, wherein the filter cotton is arranged in the secondary filter shell 404, the secondary air inlet end cover 401 is buckled on the secondary filter shell 404, and an interface penetrating through the filter main shell 5 is arranged on the secondary filter shell 404; the oil-free vacuum compressor is characterized in that a mounting via hole 6 is arranged on the air inlet filtering structure in a penetrating manner, the mounting via hole 6 is used for being matched with a vacuum end air suction pipe on the air inlet structure of the oil-free vacuum compressor for mounting and using, and the vacuum end air suction pipe can be isolated from the whole air inlet filtering structure.
A sealing ring 2 is arranged between the compression ring 1 and the primary filter 3, and a groove for placing the sealing ring 2 is arranged on the primary air inlet end cover 301; the primary filter 3 and the secondary filter 4 can be firmly encapsulated in the filter main housing 5 by the compression ring 1.
The first-stage filtering shell 303 and the second-stage air inlet end cover 401 are respectively provided with a first communication port 12 and a second communication port 11 for communicating the first-stage filter 3 and the second-stage filter 4, and the first communication port 12 is connected with the second communication port 11 in a matched manner.
The secondary filter shell 404 is internally provided with a mesh isolation plate 8, and the filter cotton comprises primary activated carbon cotton 402 and secondary refined activated carbon cotton 403; the mesh isolation plate 8 divides the secondary filter housing 404 into two housing spaces, wherein one housing space is provided with primary activated carbon cotton 402, and the other housing space is provided with secondary refined activated carbon cotton 403; a second communication port 11 is arranged on the secondary air inlet end cover 401 corresponding to the upper part of the primary activated carbon cotton 402, and an interface is arranged on the secondary filter shell 404 corresponding to the lower part of the secondary refined activated carbon cotton 403; the interface includes first interface 7, second interface 9, and first interface 7, second interface 9 all expose in filtering total casing 5, and first interface 7 is used for installing the use with the vacuum end blast pipe cooperation on the oil-free vacuum compressor's the inlet structure, and second interface 9 is used for installing the use with the positive pressure end inlet port cooperation on the oil-free vacuum compressor's the inlet structure.
The installation method and the working process are described by combining the technical scheme of the utility model and the attached drawings, and the installation method is as follows: the air inlet filter structure is matched and sealed on the air inlet structure of the vacuum end and the positive pressure end of the oil-free vacuum compressor through the mounting through hole 6, the first interface 7 and the second interface 9. The working process is as follows: firstly, external air enters from an external air inlet 10 on a primary filter 3 of an air inlet filtering structure, enters into a secondary filter 4 through a first communication port 12 and a second communication port 11 which are matched with each other after primary filtering of a HEPA filter screen 302, firstly passes through primary activated carbon cotton 402 in the secondary filter 4 for secondary filtering, then enters into secondary refined activated carbon cotton 403 through a mesh isolation plate 8 for tertiary filtering, so that clean air can be obtained, and flows out through an outlet second port 9 of the secondary filter 4 to be supplied to an oil-free vacuum compressor; wherein the first interface 7 functions as: the exhaust pipe of the vacuum end of the oil-free vacuum compressor is matched for connection, the gas exhausted after the vacuum ventilation treatment of the vacuum end of the oil-free vacuum compressor is led into the secondary refined activated carbon cotton 403 of the secondary filter 4, the gas exhausted after the vacuum ventilation treatment of the oil-free vacuum compressor is decompressed and filtered through the secondary refined activated carbon cotton 403, and then the gas exhausted after the vacuum ventilation treatment also flows out from the second interface 9, is supplied to the positive pressure end of the oil-free vacuum compressor for compression, and is exhausted into the oxygenerator after compression.
Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.
Claims (5)
1. An inlet air filtering structure of an oil-free vacuum compressor, which is characterized in that: the filter comprises a main filter shell, a primary filter, a secondary filter and a compression ring, wherein the primary filter and the secondary filter are communicated and installed in the main filter shell; the first-stage filter comprises a first-stage air inlet end cover, a HEPA filter screen and a first-stage filter shell, wherein the HEPA filter screen is arranged in the first-stage filter shell, the first-stage air inlet end cover is buckled on the first-stage filter shell, an external air inlet is formed in the first-stage air inlet end cover, and dust partitions are distributed on the HEPA filter screen; the secondary filter comprises a secondary air inlet end cover, filter cotton and a secondary filter shell, wherein the filter cotton is arranged in the secondary filter shell, the secondary air inlet end cover is buckled on the secondary filter shell, and an interface exposed out of the filter main shell is arranged on the secondary filter shell; and the air inlet filtering structure of the oil-free vacuum compressor is provided with a mounting through hole in a penetrating manner.
2. An intake filtering structure of an oil-free vacuum compressor as claimed in claim 1, wherein: the primary filter is located at the port of the main filtering shell, a sealing ring is arranged between the primary filter and the compression ring, and a groove for placing the sealing ring is formed in the primary air inlet end cover.
3. An intake filtering structure of an oil-free vacuum compressor as claimed in claim 1, wherein: the first-stage filtering shell and the second-stage air inlet end cover are respectively provided with a first communication port and a second communication port for communicating the first-stage filter and the second-stage filter, and the first communication port is connected with the second communication port in a matched mode.
4. An intake filtering structure of an oil-free vacuum compressor as claimed in claim 3, wherein: the secondary filter shell is internally provided with a mesh isolation plate, and the filter cotton comprises primary activated carbon cotton and secondary refined activated carbon cotton; the mesh isolation plate divides the secondary filter shell into two part shell spaces, wherein primary activated carbon cotton is arranged in one part of shell space, and secondary refined activated carbon cotton is arranged in the other part of shell space.
5. An intake filtering structure of an oil-free vacuum compressor as claimed in claim 4, wherein: a second communication port is arranged on the secondary air inlet end cover corresponding to the upper part of the primary activated carbon cotton, and an interface is arranged on the secondary filter shell corresponding to the lower part of the secondary refined activated carbon cotton; the interface comprises a first interface and a second interface, and the first interface and the second interface are exposed out of the filtering main shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322350305.2U CN220677137U (en) | 2023-08-31 | 2023-08-31 | Inlet air filtering structure of oil-free vacuum compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322350305.2U CN220677137U (en) | 2023-08-31 | 2023-08-31 | Inlet air filtering structure of oil-free vacuum compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220677137U true CN220677137U (en) | 2024-03-29 |
Family
ID=90373501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322350305.2U Active CN220677137U (en) | 2023-08-31 | 2023-08-31 | Inlet air filtering structure of oil-free vacuum compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220677137U (en) |
-
2023
- 2023-08-31 CN CN202322350305.2U patent/CN220677137U/en active Active
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