CN207363743U - A kind of inlet air filtration component for air auxiliary SCR aftertreatment system - Google Patents
A kind of inlet air filtration component for air auxiliary SCR aftertreatment system Download PDFInfo
- Publication number
- CN207363743U CN207363743U CN201721189414.9U CN201721189414U CN207363743U CN 207363743 U CN207363743 U CN 207363743U CN 201721189414 U CN201721189414 U CN 201721189414U CN 207363743 U CN207363743 U CN 207363743U
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- connector
- linkage section
- strainer
- aftertreatment system
- transition
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- Exhaust Gas After Treatment (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
A kind of inlet air filtration component for air auxiliary SCR aftertreatment system, including quick connector and connector, connector is included along the sequentially connected mounting base of gas flow direction, transition connector and urea pump connector, mounting base, transition connector and urea pump connector are disposed as hollow tubular structure, strainer is provided between transition connector and urea pump connector, locking member is provided with transition connector, the inserting paragraph of quick connector is stretched into mounting base and is connected with closure, and the linkage section of quick connector is connected with air inlet pipe.The utility model is designed using split, enables to air inlet and filtering function to realize and integrate, compact-sized, and effectively protects precise part metering-type jet pump, extends its service life.In addition air filter screen and sealing ring are replaced convenient in the utility model, and the exclusion of failure, easy to maintain during easy to maintain and block, and is worthy to be popularized.
Description
Technical field
SCR technology field is the utility model is related to, is specifically a kind of air inlet for air auxiliary SCR aftertreatment system
Filter component.
Background technology
The multi-purpose diesel engine such as commercial car and car, the most important pollutant of diesel engine is NOx, to reduce
The discharge of NOx, the main technological route that automobile industry uses are selective catalytic reduction（SCR）, i.e., in the tail containing NOx
Ammonia, urea or other nitrogenous compounds are sprayed into gas, nitrogen oxides is reduced into nitrogen, titanium dioxide under the action of catalyst
Carbon and water.When using air-assisted SCR aftertreatment system, its significant components urea pump is delicate metering formula jet pump, essence
Close metering-type jet pump in application to air in impurity and granule content size there are certain requirements.Therefore, it is protection urea spray
The precision component in pump is penetrated, the air from air compressor is needed by filtering before urea jet pump is entered so as to remove
Grain and impurity are to reduce the content of impurity and particle in compressed air.
Utility model content
The purpose of this utility model, is exactly existing in the prior art to solve the problems, such as, and is devised a kind of auxiliary for air
The inlet air filtration component of SCR aftertreatment system is helped, the compressed air for entering urea jet pump can effectively be filtered, and
With it is simple in structure, connection and reasonable arrangement is compact, it is easy to maintain the advantages of.
The technical solution of the utility model is：The utility model provides a kind of air that is used for and aids in SCR aftertreatment system
Inlet air filtration component, it is characterised in that：Including quick connector and connector, the connector include along gas flow direction according to
Mounting base, transition connector and the urea pump connector of secondary connection, the mounting base, transition connector and urea pump connector are equal
Hollow tubular structure is arranged to, strainer, the transition connection are provided between transition connector and the urea pump connector
Locking member is provided with vivo, and the inserting paragraph of the quick connector is stretched into mounting base and is connected with closure, described fast
The linkage section of connection-peg is connected with air inlet pipe.
Above-mentioned urea pump connector includes the front and rear linkage section I and linkage section II set, and the internal diameter of the linkage section II is big
In the internal diameter of the linkage section I, the transition connector includes the front and rear inserting section set and linkage section III, the inserting section with
The inner thread connection of linkage section II, the mounting base are connected with the inner thread of linkage section III, and the strainer is arranged on connection
In the space that section I, the inner wall of linkage section II and inserting section are formed.Designed by split so that air inlet and filtering function realize collection
Into reducing the extra mounting space of extra installation filtration apparatus, and also allow for dismounting to clear up and replace strainer.In addition,
Strainer uses axial restraint, is more easily installed with circumferencial direction stationary phase ratio, easy to operate.
Seal groove I is provided with the outer wall of above-mentioned inserting section, sealing ring I is equipped with the seal groove I, with enhancing
Sealing performance, avoids the occurrence of gas leak phenomenon.
Seal groove II is provided with the outer wall of above-mentioned mounting base, sealing ring II is equipped with the seal groove II, with
Strengthen sealing performance, avoid the occurrence of gas leak phenomenon.
Above-mentioned strainer includes strainer body and annular brace, is provided with mounting groove on the inner wall of the annular brace seat, institute
Strainer body is stated to be connected with mounting groove.
Above-mentioned strainer is provided with sealing ring III close to the side of linkage section I, and the outside diameter of the sealing ring III is more than the ring
The internal diameter of shape support.By the design, after installation, strainer is in close contact with sealing ring III, may filter that the particle more than 75um.Institute
The decrement that sealing ring III keeps certain is stated, the sealing performance between strainer and linkage section I and linkage section II can be lifted, and then
Ensure air by the comprehensive filtering of strainer and without additional leakage.
The internal diameter of above-mentioned inserting section is less than the internal diameter of the linkage section III, and the inserting section is on one end inner wall of strainer
It is provided with annular protrusion.
Above-mentioned locking member includes retaining folder and spring washer, and the retaining folder is arranged on the linkage section III and inserting section
Transition endface, the spring washer is arranged on the transition endface of the linkage section III and annular protrusion.
The middle part of above-mentioned quick connector is provided with venting channels, the venting channels and transition connector along its axis direction
Inner cavity be connected, the outer wall of the inserting paragraph of the quick connector is provided with annular slot, and the annular slot is matched somebody with somebody with retaining folder
Close connection.By the design, inserting paragraph and the retaining folder of quick connector are connected, its end, which is stretched into spring washer, to be consolidated
It is fixed, it can effectively prevent quick connector from shaking or coming off.
Above-mentioned inserting section is provided with circular capacity expansion tank, the circle capacity expansion tank and inserting section on the end face of strainer side
Inner cavity be connected.By designing capacity expansion tank, the contact area of gas and strainer can be increased, increase the filtration yield of gas.
The beneficial effects of the utility model can be drawn through the above scheme：The utility model is designed using split, including fast
Connection-peg and connector, connector include connecting along the sequentially connected mounting base of gas flow direction, transition connector and urea pump
Junctor, which enables to air inlet and filtering function to realize and integrate, compact-sized, reduces the volume of extra installation filtration apparatus
Outer installation space, can effectively protect precise part metering-type jet pump, prolong the service life.In addition air in the utility model
It is convenient that strainer and sealing ring are replaced, and the exclusion of failure, easy to maintain during easy to maintain and block, and is worthy to be popularized.
It can be seen from the above that the utility model has substantive distinguishing features and progress compared with prior art, its beneficial effect implemented
Fruit is also obvious.
Brief description of the drawings：
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is A-A schematic cross-sectional views in Fig. 1；
Fig. 3 is the schematic cross-sectional view of the connector with locking member in the utility model；
Fig. 4 is the overlooking the structure diagram of strainer in the utility model；
Fig. 5 is B-B schematic cross-sectional views in Fig. 4.
Wherein, 1 is quick connector, and 2 be air inlet pipe, and 3 be connector, and 3-1 is mounting base, and 3-2 is transition connector, 3-3
For urea pump connector, 3-3-1 is linkage section I, and 3-3-2 is linkage section II, and 3-2-1 is inserting section, and 3-2-2 is linkage section III,
3-2-3 is annular protrusion, and 3-2-4 is capacity expansion tank, and 4 press from both sides for retaining, and 5 be spring washer, and 6 be sealing ring I, and 7 be sealing ring II, 8
It is sealing ring IV for sealing ring III, 9,10 be strainer, and 10-1 is annular brace, and 10-2 is strainer body, and 11 be sealing ring V.
Embodiment：
The utility model in order to better understand, explains in detail the embodiment of the utility model below in conjunction with the accompanying drawings.
Embodiment：The utility model provides a kind of inlet air filtration for air auxiliary SCR aftertreatment system
Component, it is characterised in that：Including quick connector 1 and connector 3, the connector 3 includes being sequentially connected along gas flow direction
Mounting base 3-1, transition connector 3-2 and urea pump connector 3-3, the mounting base 3-1, transition connector 3-2 and urea
Pump connector 3-3 is disposed as hollow tubular structure, is set between transition connector 3-2 and urea pump the connector 3-3
There is strainer 10, locking member is provided with the transition connector 3-2, the inserting paragraph of the quick connector 2 stretches into mounting base 3-1
Interior and be connected with closure, the linkage section of the quick connector 2 is connected with air inlet pipe 2.
In the present embodiment, urea pump connector 3-3 includes front and rear II 3-3-2 of I 3-3-1 of linkage section and linkage section set,
The internal diameter of II 3-3-2 of linkage section is more than the internal diameter of I 3-3-1 of linkage section, and the transition connector 3-2 includes front and rear set
Inserting section 3-2-1 and linkage section III 3-2-2 put, the inserting section 3-2-1 are connected with the inner thread of II 3-3-2 of linkage section,
The mounting base 3-1 is connected with the inner thread of III 3-2-2 of linkage section, and the strainer 10 is arranged on I 3-3-1 of linkage section, connection
In the space that the inner wall and inserting section 3-2-1 of II 3-3-2 of section is formed.Seal groove I is provided with the outer wall of inserting section 3-2-1,
Sealing ring I 6 is equipped with the seal groove I.Seal groove II, the seal groove are provided with the outer wall of mounting base 3-1
Sealing ring II 7 is equipped with II.
Strainer 10 includes strainer body 10-2 and annular brace 10-1, and peace is provided with the inner wall of the annular brace 10-1
Tankage, the strainer body 10-2 are connected with mounting groove.Strainer 10 is provided with sealing ring III 8 close to the side of linkage section I,
The outside diameter of the sealing ring III 8 is more than the internal diameter of the annular brace 10-1.Pass through the design, after installation, strainer and sealing ring
III 8 are in close contact, and may filter that the particle more than 75um.The sealing ring III 8 keeps certain decrement, can be lifted strainer with
Sealing performance between II 3-3-2 of I 3-3-1 of linkage section and linkage section, and then ensure air by the comprehensive filtering of strainer and without volume
External leakage.In addition, the strainer uses axial restraint, it is more easily installed with circumferencial direction stationary phase ratio, it is easy to operate.
The internal diameter of the inserting section 3-2-1 is less than the internal diameter of III 3-2-2 of linkage section, and the inserting section 3-2-1 is close
Annular protrusion 3-2-3 is provided with one end inner wall of strainer 10.Locking member includes retaining folder 4 and spring washer 5, the retaining
Folder 4 is arranged on the transition endface of III 3-2-2 of linkage section and inserting section 3-2-1, and the spring washer 5 is arranged on the company
Connect the transition endface of III 3-2-2 of section and protrusion 3-2-3.The middle part of quick connector 1 is provided with venting channels along its axis direction,
The venting channels are connected with the inner cavity of transition connector 3-2, and the outer wall of the inserting paragraph of the quick connector 1 is provided with annular
Card slot, the annular slot are connected with retaining folder.By the design, the inserting paragraph of quick connector 1 coordinates with retaining folder 4 to be connected
Connect, its end is stretched into spring washer 5 and is fixed, and can effectively prevent quick connector from shaking or coming off.
In addition, inserting section 3-2-1 is provided with circular capacity expansion tank 3-2-4, the circle on the end face of 10 side of strainer
Capacity expansion tank 3-2-4 is connected with the inner cavity of inserting section 3-2-1.The diameter of the circle capacity expansion tank 3-2-4 is more than the convex annular
Play the internal diameter of 3-2-3.By designing capacity expansion tank 3-2-4, the contact area of gas and strainer 10 can be increased, increase the mistake of gas
Filter amount.
Seal groove IV is provided with the outer wall of the quick connector 1, sealing ring IV is equipped with the seal groove IV
9, to strengthen the leakproofness of quick connector and mounting base 3-1.Seal groove V is provided with the outer wall of I 3-3-1 of linkage section,
Sealing ring V 11 is equipped with seal groove V, to strengthen the sealing performance being connected with urea pump.
The utility model is designed using split so that air inlet and filtering function are realized and integrated, and reduce extra installation filtering
The extra mounting space of device, it is compact-sized, and the replacement of air filter screen and sealing ring is also allowed for, easy to maintain and block up
The exclusion of failure, easy to maintain during plug.The utility model can effectively protect precise part metering-type jet pump, and extension uses the longevity
Life, is worthy to be popularized.
The above description is not intended to limit the present invention, and the utility model is also not limited to the example above, this skill
The variations, modifications, additions or substitutions that the those of ordinary skill in art field is made in the essential scope of the utility model, also should
Belong to the scope of protection of the utility model.
Claims (10)
- A kind of 1. inlet air filtration component for air auxiliary SCR aftertreatment system, it is characterised in that：Including quick connector and company Fitting, the connector are included along the sequentially connected mounting base of gas flow direction, transition connector and urea pump connector, institute State mounting base, transition connector and urea pump connector and be disposed as hollow tubular structure, the transition connector and urea Strainer is provided between pump connector, locking member is provided with the transition connector, the inserting paragraph of the quick connector is stretched Enter in mounting base and be connected with closure, the linkage section of the quick connector is connected with air inlet pipe.
- 2. the inlet air filtration component for air auxiliary SCR aftertreatment system as claimed in claim 1, it is characterised in that：Institute Stating urea pump connector includes the front and rear linkage section I and linkage section II set, and the internal diameter of the linkage section II is more than the connection The internal diameter of section I, the transition connector include the front and rear inserting section set and linkage section III, the inserting section and linkage section II Inner thread connects, and the mounting base is connected with the inner thread of linkage section III, and the strainer is arranged on linkage section I, linkage section In the space that II inner wall and inserting section is formed.
- 3. the inlet air filtration component for air auxiliary SCR aftertreatment system as claimed in claim 2, it is characterised in that：Institute State and seal groove I is provided with the outer wall of inserting section, sealing ring I is equipped with the seal groove I.
- 4. the inlet air filtration component for air auxiliary SCR aftertreatment system as claimed in claim 2 or claim 3, it is characterised in that： Seal groove II is provided with the outer wall of the mounting base, sealing ring II is equipped with the seal groove II.
- 5. the inlet air filtration component for air auxiliary SCR aftertreatment system as claimed in claim 2 or claim 3, it is characterised in that： The strainer includes strainer body and annular brace, and mounting groove, the strainer body are provided with the inner wall of the annular brace It is connected with mounting groove.
- 6. the inlet air filtration component for air auxiliary SCR aftertreatment system as claimed in claim 5, it is characterised in that：Institute State strainer and the side of linkage section I is provided with sealing ring III, the outside diameter of the sealing ring III is more than the interior of the annular brace Footpath.
- 7. the inlet air filtration component for being used for air auxiliary SCR aftertreatment system as described in claim 2 or 6, it is characterised in that： The internal diameter of the inserting section is less than the internal diameter of the linkage section III, and the inserting section is provided with ring on one end inner wall of strainer Shape is raised.
- 8. the inlet air filtration component for air auxiliary SCR aftertreatment system as claimed in claim 7, it is characterised in that:Institute Stating locking member includes retaining folder and spring washer, and the retaining folder is arranged on the linkage section III and the transition end face of inserting section Place, the spring washer are arranged on the linkage section III and raised transition endface.
- 9. the inlet air filtration component for air auxiliary SCR aftertreatment system as claimed in claim 8, it is characterised in that:Institute The middle part for stating quick connector is provided with venting channels along its axis direction, and the venting channels are connected with the inner cavity of transition connector Logical, the outer wall of the inserting paragraph of the quick connector is provided with annular slot, and the annular slot is connected with retaining folder.
- 10. the inlet air filtration component for being used for air auxiliary SCR aftertreatment system as described in claim 2 or 6, its feature exist In:The inserting section is provided with circular capacity expansion tank on the end face of strainer side, the circle capacity expansion tank and inserting section it is interior Chamber is connected.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720784595 | 2017-07-01 | ||
| CN2017207845953 | 2017-07-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207363743U true CN207363743U (en) | 2018-05-15 |
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ID=62348653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721189414.9U Active CN207363743U (en) | 2017-07-01 | 2017-09-15 | A kind of inlet air filtration component for air auxiliary SCR aftertreatment system |
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| CN (1) | CN207363743U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107448267A (en) * | 2017-07-01 | 2017-12-08 | 福士汽车零部件（济南）有限公司 | A kind of inlet air filtration component for air auxiliary SCR aftertreatment system |
-
2017
- 2017-09-15 CN CN201721189414.9U patent/CN207363743U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107448267A (en) * | 2017-07-01 | 2017-12-08 | 福士汽车零部件（济南）有限公司 | A kind of inlet air filtration component for air auxiliary SCR aftertreatment system |
| CN107448267B (en) * | 2017-07-01 | 2024-03-26 | 福士汽车零部件（济南）有限公司 | Air inlet filter assembly for air-assisted SCR aftertreatment system |
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