CN205965285U - Gas filter - Google Patents
Gas filter Download PDFInfo
- Publication number
- CN205965285U CN205965285U CN201620676216.4U CN201620676216U CN205965285U CN 205965285 U CN205965285 U CN 205965285U CN 201620676216 U CN201620676216 U CN 201620676216U CN 205965285 U CN205965285 U CN 205965285U
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- Prior art keywords
- filter
- filter core
- cylinder
- layer
- hole
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Abstract
The utility model discloses a gas filter, including the casing filter core inside with being located the casing, the filter core size is less than casing inside dimension, the inside vacuole formation of casing, be equipped with on this casing with the gas outlet of the air inlet and the intercommunication cavity of the inside intercommunication of filter core, the filter core includes the filter layer of drum shape, wherein, the filter core still is in including the difference cladding in the filter layer cylindrical surface the inner cylinder with filter layer outer cylindrical surface's outer cylindrical, the inner cylinder all is equipped with a plurality of through -holes with outer cylindrical. The easy problem of blockking up of filter core is solved through the gas flow rate of filter core to the quantity of these through -holes and the common control flow of size.
Description
Technical field
The utility model is related to gas filtration technical field and in particular to a kind of pneumatic filter.
Background technology
Gas filtration is by falling a large amount of contaminant filters in the presence of gas, to reach the purity requirement of gas, from
And avoid the harm that impurity brings.For example, the helium in helium compressor can carry a large amount of mist of oils after compressor compresses, if
These mist of oils do not filter out, then the piston in compressor can be caused drastically to wear and tear, the normal work of impact machine.
Device for contaminant filter is filter, and filter generally comprises filter core and the housing being sleeved on outside filter core,
And the gas outlet that the air inlet being connected with filter core is connected with housing.Wherein, filter core is the key point of filter, filter core
Structure design, can directly influence filter effect.In prior art, filter core is only the combination product of multiple layers of filters.Cannot
According to existing filter core, determine the stream pressure that filter operationally can bear, lead to filter core to be subject in filtration gas
Stream pressure is excessive, and final result is that filter core easily blocks.
Chinese invention patent《Combined type mining gas filter》(publication number：102068862A；Publication date：In May, 2011
25 days) in disclose a kind of pneumatic filter, this filter includes housing, filter core and inner core；Described housing is cylindrical, one
End is provided with gas outlet；Described filter core includes filter layer, filter layer be set with successively by coarse filtration layer, middle filter layer, smart filter layer and
Become；Described essence filter layer is located at innermost layer, and it is set in inner core periphery, the outside open end of described inner core and the gas outlet of housing
Connection, the medial end of described inner core is cecum；It is provided with air inlet, this air inlet is logical on described housing, the cylinder of inner core
Hole.It follows that the filter core in this filter only includes filter layer, lead to filter layer when filtering gas, air-flow is directly made
For filter layer, filter layer deformation is easily made even to damage.The stream pressure that filter operationally can bear cannot be determined,
The pressure of air-flow may be led to excessive, cause filter layer to block.
Chinese invention patent《A kind of filter》(publication number：103405971A；Publication date：On November 27th, 2013) in public
Open a kind of pneumatic filter, this filter includes housing, filter layer and blowoff valve, described housing is provided with air inlet and gives vent to anger
Mouthful；Housing bottom is provided with blowoff valve；The inside of housing is provided with the filter layer of drum, and described filter layer is with air inlet even
Logical, gas outlet is connected with enclosure interior；The top of housing is connected with outside installing rack by welding；The bottom of housing sets
There is blowoff valve.It follows that described filter cannot determine the stream pressure that can bear in its work, air-flow may be led to
Pressure excessive, cause filter layer block.
Generally speaking, operationally, the gas flow rate flowing through filter core is excessive for existing filter, the gas suffered by this filter core
Flowing pressure exceedes the maximum airflow pressure that this filter core can bear, and leads to filter core easily to block, service life is short.
Content of the invention
The utility model makes improvements for existing technical problem, and that is, technical problem to be solved in the utility model is
There is provided a kind of pneumatic filter, when this filter can ensure that its work, the stream pressure that filter core is born will not be excessive, solve
Filter core holds susceptible to plugging problem, improves the operating efficiency of filter.For solving the above problems, the technical side that the utility model provides
Case is：
A kind of pneumatic filter, the filter core including housing with positioned at enclosure interior, described filter core is smaller in size than described housing
Inside dimension, described enclosure interior forms cavity, and this housing is provided with and the air inlet connecting inside filter core and connection cavity
Gas outlet, described filter core includes the filter layer of drum, and wherein, described filter core also includes being respectively coated by described filter layer
The inner cylinder of inner periphery and the outer cylinder of described filter layer outer cylinder surface, described inner cylinder and outer cylinder are equipped with multiple
Through hole.
Further, described filter core also includes being covered in the filter element upper cover of described filter layer upper surface, is covered in described filtration
The filter core lower cover of layer lower surface and the air inlet pipe passing through set through hole on filter element upper cover, described air inlet is interior with described through air inlet pipe
Cylinder bore connects.
Further, described filter core also include an inner side being sleeved on described inner cylinder and be coaxial therewith rotatably auxiliary
Help cylinder, described auxiliary cylinder is provided with multiple through holes with the cooperation of described inner cylinder gap, this auxiliary cylinder, rotates described auxiliary circle
Cylinder, in adjustable auxiliary cylinder, through hole and the through hole overlapping area of through hole on described inner cylinder, adjust the gas stream flowing through filter core
Speed.
Further, described auxiliary cylinder is included circular slab lower cover positioned at its lower end and is fixedly connected with circular slab lower cover
Rotary shaft, this axle is coaxially disposed with auxiliary cylinder and is extended downwardly from by the through hole that described filter core lower cover is provided with housing bottom.
Further, it is provided with the first hole rotating seal ring, described rotation between the through hole of described rotary shaft and filter core lower cover
It is provided with the second hole rotating seal ring between the through hole of axle and housing bottom.
Further, described filter element upper cover connects described filter core lower cover by connection strap.
Further, described filter core outer surface is additionally provided with anti-collision structure.
Further, described anti-collision structure is anticollision strip.
Further, described filter layer includes filter cotton layer, filter paper layer and the silk screen layer being from inside to outside set with successively.
In technique scheme, inner cylinder is set in filter layer inner periphery, in the setting of filter layer outer cylinder surface
Outer cylinder, inner cylinder and outer cylinder are equipped with multiple through holes.Filter is flowed through by the density and size co- controlling of these through holes
The gas flow rate of core.Prevent that gas pressure is excessive to cause damage to filter layer.Understand the structure of filter core for convenience, filter core is done
Further description.On this basis, increase by one and be used for the auxiliary cylinder that adjustment further flows through the gas flow rate of filter core, lead to
Cross the relative angle that rotary shaft changes between auxiliary cylinder and inner cylinder, make the size of the auxiliary cylinder through hole overlapping with inner cylinder
Size changes.In addition to this it is possible to integrally-built security makes improvements to filter core, increase multiple in filter core outer surface
Anticollision strip.Finally, according to specific circumstances filter layer can be set to multiple filtration, the filter cotton being for example from inside to outside set with successively
Layer, filter paper layer and silk screen layer, this set effectively can be filtered for the gas with a large amount of mist of oil impurity.
The utility model has the advantage that：
1. the utility model can determine in its work, can control the gas flow rate flowing through filter core it is ensured that filter core institute
The gas pressure that can bear will not be excessive.Solve filter core and hold susceptible to plugging problem, improve its operating efficiency.
2. the utility model operationally can adjust the gas flow rate flowing through filter core further.Further ensure gas
Flowing pressure will not be excessive.
3. the filter core included by the utility model carries collision prevention function.Prevent filter core from being destroyed by outside, improve it
Security.
4. the utility model effectively can be filtered for the gas with a large amount of mist of oil impurity.
Brief description
Fig. 1 is the overall structure diagram of the first embodiment.
Fig. 2 is the overall structure diagram of second embodiment.
Fig. 3 is enlarged diagram at A in second embodiment.
Fig. 4 is enlarged diagram at B in second embodiment.
Specific embodiment
With reference to embodiment and accompanying drawing, the utility model is described further.
As shown in figure 1, the first embodiment of the present utility model, a kind of pneumatic filter, including housing 1 and filter core 2,
Described filter core 2 is located at the inside of housing 1, and filter core 2 is smaller in size than housing 1 inside dimension, and housing 1 is internally formed cavity.On housing 1
It is provided with the gas outlet 12 of the air inlet 11 that connect internal with filter core 2 and connection cavity.
Described filter core 2 includes inner cylinder 20, filter layer 21, outer cylinder 22, filter element upper cover 23, filter core lower cover 25, connection strap
26th, anti-collision structure 27 and air inlet pipe.Filter layer 21 is drum.According to actual conditions, filter layer 21 can be configured, this
In taking remove the mist of oil impurity in helium as a example, filter cotton layer that filter layer 21 includes from inside to outside being set with successively, filter paper layer and
Silk screen layer.Inner cylinder 20 and outer cylinder 22 are all machined with the multiple through holes being evenly arranged.Inner cylinder 20 is coated on filter layer 21
On inner periphery, outer cylinder 22 is coated on the outer cylinder surface of filter layer 21.Filter element upper cover 23 covers in filter layer 21
Upper surface, this filter element upper cover is processed a passage, and air inlet pipe passes through this passage.Air inlet 11 is interior with described through air inlet pipe
Cylinder 20 inner space.Filter core lower cover 25 is arranged on the lower section of filter layer 21.Connection strap 26 is fixedly connected filter element upper cover 23 and filter
Relative distance between core lower cover 25, and filter element upper cover 23 and filter core lower cover 25 is identical with the height of filter layer 21.Outside filter core 2
Surface is fixedly connected anti-collision structure 27, and hitting assembling structure 27 is multiple anticollision strips.
The feature of the first embodiment：
1. the filter described in present embodiment determines in its work, can control the gas flow rate flowing through filter core 2, protects
The gas pressure that card filter core 2 can bear will not be excessive.Solve filter core 2 and hold susceptible to plugging problem, improve its operating efficiency.
2. the filter core 2 described by present embodiment carries collision prevention function.Prevent filter core 2 from being destroyed by outside, improve
Its security.
3. present embodiment effectively can be filtered for the helium with a large amount of mist of oil impurity.
As shown in Figures 2 to 4, modification of the embodiment above：
Described filter core 2 increases an auxiliary cylinder 28, and auxiliary cylinder 28 is used for the gas stream that adjustment further flows through filter core
Speed.Auxiliary cylinder 28 is sleeved on the inner side of described inner cylinder 20 and they are coaxially disposed, and that is, their axis is identical.In auxiliary circle
Multiple through holes are processed on cylinder 28, the arrangement of these through holes is identical with the arrangement of described inner cylinder 20 through hole.As a example be easy to rotate auxiliary
Help cylinder 28, auxiliary cylinder 28 and the cooperation of inner cylinder 20 gap.Include the circular slab lower cover positioned at its lower end in auxiliary cylinder 28
281 and with the rotary shaft 282 being fixedly connected on circular slab lower cover 281, this axle is coaxially disposed with auxiliary cylinder 28.
Described filter core lower cover 25 and the equal through hole in housing 1 bottom, rotary shaft 282 passes through filter core lower cover 25 and housing 1 bottom
Through hole extends downwardly from.It is provided with the first hole rotating seal ring 251, rotary shaft between the through hole of rotary shaft 282 and filter core lower cover 25
282 are provided with the second hole rotating seal ring 13 with the through hole of housing 1 bottom.
Relative angle between auxiliary cylinder 28 and inner cylinder 20 is changed by the rotation of rotary shaft 282, adjusts auxiliary circle
The through hole overlapping area of through hole on through hole and inner cylinder 20 on cylinder 28.
The feature of second embodiment：
Oil filter described in present embodiment can operationally, and adjustment further flows through the gas flow rate of filter core 2.Enter one
Step ensure that stream pressure will not be excessive.
Above-mentioned all of embodiment is only used for principle of the present utility model is described, is not limited to model of the present utility model
Enclose.The utility model can also be made with other changes, for example the setting of filter layer 21 can according to specific circumstances depending on.
These changes still fall in protection domain of the present utility model.
Claims (8)
1. a kind of pneumatic filter, including housing (1) with positioned at the internal filter core (2) of housing (1), described filter core (2) size is little
In described housing (1) inside dimension, described housing (1) is internally formed cavity, and this housing is provided with and connects with inside filter core (2)
Air inlet (11) and the gas outlet (12) of connection cavity, described filter core (2) includes the filter layer (21) of drum, its feature
It is, described filter core (2) also includes being respectively coated by the inner cylinder (20) of described filter layer (21) inner periphery and described mistake
The outer cylinder (22) of filtering layer (21) outer cylinder surface, described inner cylinder (20) and outer cylinder (22) are equipped with multiple through holes.
2. pneumatic filter as claimed in claim 1 is it is characterised in that described filter core (2) also includes being covered in described filtration
Layer (21) upper surface filter element upper cover (23), be covered in described filter layer (21) lower surface filter core lower cover (25) and pass through filter core
The air inlet pipe of the upper set through hole of upper lid (23), described air inlet (11) is through air inlet pipe and described inner cylinder (20) inner space.
3. pneumatic filter as claimed in claim 2 it is characterised in that described filter core (2) also include one be sleeved on described
The inner side of inner cylinder (20) and the rotatable auxiliary cylinder (28) being coaxial therewith, described auxiliary cylinder (28) and described inner cylinder
(20) gap cooperation, this auxiliary cylinder is provided with multiple through holes, rotates described auxiliary cylinder (28), on adjustable auxiliary cylinder (28)
Through hole and the through hole overlapping area of the upper through hole of described inner cylinder (20), adjust the gas flow rate flowing through filter core (2), described auxiliary circle
Cylinder (28) includes the rotary shaft be fixedly connected positioned at the circular slab lower cover (281) of its lower end and with circular slab lower cover (281)
(282), this rotary shaft is coaxially disposed with auxiliary cylinder (28) and is provided with by described filter core lower cover (25) and housing (1) bottom
Through hole extends downwardly from.
4. pneumatic filter as claimed in claim 3 is it is characterised in that described rotary shaft (282) and filter core lower cover (25)
It is provided with the first hole rotating seal ring (251) between through hole, set between described rotary shaft (282) and the through hole of housing (1) bottom
There is the second hole rotating seal ring (13).
5. pneumatic filter as claimed in claim 2 is it is characterised in that described filter element upper cover (23) passes through connection strap (26) even
Connect described filter core lower cover (25).
6. pneumatic filter as claimed in claim 1 is it is characterised in that described filter core (2) outer surface is additionally provided with anti-collision structure
(27).
7. pneumatic filter as claimed in claim 6 is it is characterised in that described anti-collision structure (27) is anticollision strip.
8. pneumatic filter as claimed in claim 1 is it is characterised in that described filter layer (21) includes from inside to outside covering successively
The filter cotton layer of dress, filter paper layer and silk screen layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620676216.4U CN205965285U (en) | 2016-06-29 | 2016-06-29 | Gas filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620676216.4U CN205965285U (en) | 2016-06-29 | 2016-06-29 | Gas filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205965285U true CN205965285U (en) | 2017-02-22 |
Family
ID=58022887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620676216.4U Expired - Fee Related CN205965285U (en) | 2016-06-29 | 2016-06-29 | Gas filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205965285U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105999878A (en) * | 2016-06-29 | 2016-10-12 | 安徽万瑞冷电科技有限公司 | Gas filter |
| CN107913555A (en) * | 2018-01-09 | 2018-04-17 | 安吉简美家具有限公司 | It is a kind of can double-deck drawing and pulling type air filtering core |
| CN108176146A (en) * | 2018-01-09 | 2018-06-19 | 安吉简美家具有限公司 | It is a kind of can double-deck drawing and pulling type air filtering method |
| CN108524037A (en) * | 2018-05-08 | 2018-09-14 | 江南大学附属医院 | A kind of department of stomatology jet cleaning device |
-
2016
- 2016-06-29 CN CN201620676216.4U patent/CN205965285U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105999878A (en) * | 2016-06-29 | 2016-10-12 | 安徽万瑞冷电科技有限公司 | Gas filter |
| CN107913555A (en) * | 2018-01-09 | 2018-04-17 | 安吉简美家具有限公司 | It is a kind of can double-deck drawing and pulling type air filtering core |
| CN108176146A (en) * | 2018-01-09 | 2018-06-19 | 安吉简美家具有限公司 | It is a kind of can double-deck drawing and pulling type air filtering method |
| CN108524037A (en) * | 2018-05-08 | 2018-09-14 | 江南大学附属医院 | A kind of department of stomatology jet cleaning device |
| CN108524037B (en) * | 2018-05-08 | 2024-08-27 | 江南大学附属医院 | Jet cleaning device for stomatology department |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170222 Termination date: 20190629 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |