CN206063910U - A kind of gradient filtration formula carbamide cleaner - Google Patents
A kind of gradient filtration formula carbamide cleaner Download PDFInfo
- Publication number
- CN206063910U CN206063910U CN201620943803.5U CN201620943803U CN206063910U CN 206063910 U CN206063910 U CN 206063910U CN 201620943803 U CN201620943803 U CN 201620943803U CN 206063910 U CN206063910 U CN 206063910U
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- end cover
- filter element
- carbamide
- bottom end
- sealing shroud
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- Filtering Of Dispersed Particles In Gases (AREA)
- Filtration Of Liquid (AREA)
Abstract
This utility model belongs to diesel engine vent gas post-processing technology field, is related to a kind of gradient filtration formula carbamide cleaner.Mainly it is made up of filter element, bottom end cover, upper end cover and sealing shroud；Filter element upper and lower side is fixedly connected with upper end cover, bottom end cover respectively so that filter element, bottom end cover and upper end cover form an internal cavity；Sealing shroud is connected by the way of interference clamping with upper end cover, and sealing shroud interstitial hole arranges pipette, interpolation interference fit connection between pipette and sealing shroud；Filter element adopts multilamellar fusion-jet type PP cotton filter mediums, filter element to adopt circular ring type die casting structure, arranges three layers：, with 25 μm of filtering accuracy, with 10 μm of filtering accuracy, internal layer is with 5 μm of filtering accuracy in middle level for outer layer；Double-ring bulge-structure is adopted at the connecting portion of bottom end cover, upper end cover and filter element；This utility model high precision, Rong Chen great；Resistant to urea performance is good, and structure is relatively reliable, and resistance to pressure is good, and it is convenient to change.
Description
Technical field
This utility model belongs to diesel engine vent gas post-processing technology field, is related to a kind of gradient filtration formula carbamide cleaner.
Background technology
To be filter of the carbamide as filter medium, major function is to filter the particulate matter in carbamide to carbamide cleaner
Deng impurity, cleaning carbamide is provided for post processing urea injection system.Filtered carbamide directly participates in injection, granule therein
Thing impurity will cause urea pump, urea nozzle early mill and pipe blocking, cause urea injection system disabler, therefore, urine
Plain cleaner be urea injection system necessary to important device.At present, state IV, V gas drive formula urea injection system operating pressure of state
It is higher, it is higher to cleaner filtering accuracy and corrosion resistance requirement, it is existing using filter paper or non-woven fabrics as the filter of filter medium
Clear device cannot meet above-mentioned requirements.Therefore, in the urgent need to developing a kind of high accuracy, high pressure resistant, corrosion resistant novel urine
Plain cleaner, effectively filters out the impurity in carbamide, it is ensured that gas drive formula urea injection system normal reliable works.
The content of the invention
The purpose of this utility model：
This utility model is a kind of novel gradient filtering type carbamide cleaner.This utility model is deposited in overcoming prior art
Filtering accuracy is low, the technical problem such as service life is short, it is therefore an objective to gas drive formula carbamide is effectively filtered out by the carbamide cleaner
The impurity such as the particulate matter in spraying system, it is ensured that the filtering function and service life of urea injection system.
The technical solution of the utility model：
A kind of gradient filtration formula carbamide cleaner, is mainly made up of filter element 1, bottom end cover 2, upper end cover 3 and sealing shroud 4；Institute
State 1 upper and lower side of filter element to be fixedly connected with upper end cover 3, bottom end cover 2 respectively so that filter element 1, bottom end cover 2 and upper end cover 3 form one
Internal cavity；The sealing shroud 4 is connected by the way of interference clamping with upper end cover 3, and 4 interstitial hole of the sealing shroud arranges imbibition
Pipe 5, interpolation interference fit connection between the pipette 5 and sealing shroud 4.
The filter element 1 adopts multilamellar fusion-jet type PP cotton filter mediums, filter element 1 to adopt circular ring type die casting structure.
The filter element 1 arranges three layers：, with 25 μm of filtering accuracy, middle level 1-2 is with 10 μm of filtration essence for outer layer 1-1
Degree, internal layer 1-3 is with 5 μm of filtering accuracy.
Bottom end cover 2, upper end cover 3 are connected using welding manner with filter element 1, the connecting portion of bottom end cover 2, upper end cover 3 and filter element 1
Double-ring bulge-structure A is provided with position, strengthens the weld strength between end cap and filter element.
In the outside of pipette 5 with 4 interpolation interference fit junction of sealing shroud, stainless steel lathe dog is set.
A kind of gradient filtration formula carbamide cleaner, employs novel gradient filter medium first.The medium is that multilamellar is melt-blown
Formula PP cotton filter medium, can be realized successively from bulky grain to short grained classified filtering, i.e. gradient to impurity by filtering direction
Filter.Using the filter element of the medium with 5 μm of filtering accuracy, stronger dust capaciting ability and excellent resistant to urea performance.Jie
Matter adopts circular ring type die casting structure, has good pressure performance, can meet gas drive formula urea injection system after making filter element
Operating pressure is required.The medium has a good welding performance, the upper and lower end cover of filter element using double-ring bulge-structure with
Filter medium is welded, it is ensured that the axial tensile strength of welding rear end cap and filter medium.
The Advantageous Effects that this utility model is present compared with prior art：
A) high precision, Rong Chen great.New urea cleaner filtering accuracy reaches 5 μm, is ensureing urea injection system reliability
With stronger dust capaciting ability while work, the longer maintenance replacement cycle can be realized；
B) resistant to urea performance is good.The filter medium of new urea cleaner be multilamellar fusion-jet type PP cotton filter mediums, resistance to urine
Plain excellent performance, the carbamide cleaner for having evaded existing employing filter paper or non-woven fabrics filter medium cause because of the corrosion of long-term carbamide
Strainability decline problem；
C) structure is relatively reliable.The upper and lower end cover of new urea filter element adopts double-ring bulge-structure and mistake
Filter medium is welded, it is ensured that the axial tensile strength of welding rear end cap and filter medium, it is to avoid existing filter medium with
The risk of the gluing attachment structure corrosion cracking of end cap；
D) resistance to pressure is good.New urea filter element adopts circular ring type structure, with good pressure performance.
E) change convenient.The carbamide cleaner adopts modularized design, is integrated under the pipette of urea supply module
End, changes convenient, it is easy to maintain.
Description of the drawings
Fig. 1 is a kind of gradient filtration formula carbamide cleaner schematic diagram；
Fig. 2 is C-C shown in Fig. 1 to cut-away view；
Fig. 3 is the double-ring bulge-structure schematic diagram of upper end cover and filter element welding position.
Specific embodiment
Refering to shown in Fig. 1, Fig. 2, a kind of novel gradient filtering type carbamide cleaner, including the filter element 1 of gradient filtration, lower end
Lid 2, upper end cover 3 and sealing shroud 4 are constituted；The wherein outer layer 1-1 of filter element has 10 μm with 25 μm of filtering accuracy, middle level 1-2
Filtering accuracy, internal layer 1-3 is with 5 μm of filtering accuracy；Wherein bottom end cover 2 and upper end cover 3 adopt double with filter element welding position
Annular projection structure A, refering to Fig. 3, strengthens the weld strength between end cap and filter element；Filter element 1, bottom end cover 2 and upper end cover 3 are using weldering
The connected mode for connecing；Sealing shroud 4 is tightly connected mode using interference clamping with upper end cover 3；Between sealing shroud 4 and pipette 5
Using the mode that is tightly connected of interpolation interference, and increase stainless steel standard clip outside.
The novel gradient filtering type carbamide cleaner is immersed in carbamide, and the gas to carbamide ullage applies rule
Fixed pressure.Under gas pressure effect, 1-1,1-2 and 1-3 filtering medium layer of the carbamide containing impurity by filter element 1, energy
Enough press filtering direction to realize successively from bulky grain to short grained classified filtering impurity, the filtration of right >=5 μm of impurity particle
Efficiency >=99%, the cleaning carbamide after filtration enter the internal cavity that filter element 1, bottom end cover 2 and upper end cover 3 are formed, after filtration
Cleaning carbamide enters urea supply module by the pipette 5 being connected with the interstitial hole of sealing shroud 4 under pressure, final logical
Cross urea supply module and be supplied to urea injection system.
When in the filter element 1 of the gradient filtration formula carbamide cleaner impurities accumulation such as dust to a certain extent when, it is necessary to more
Change gradient filtration formula carbamide cleaner.The gradient filtration formula carbamide cleaner, is applied to state IV, V gas drive formula carbamide injection system of state
In system.
Claims (5)
1. a kind of gradient filtration formula carbamide cleaner, it is characterised in that：It is main by filter element (1), bottom end cover (2), upper end cover (3) and
Sealing shroud (4) is constituted；Filter element (1) upper and lower side is fixedly connected with upper end cover (3), bottom end cover (2) respectively so that filter element (1),
Bottom end cover (2) and upper end cover (3) form an internal cavity；The side of the sealing shroud (4) and upper end cover (3) using interference clamping
Formula connects, and sealing shroud (4) interstitial hole arranges pipette (5), interpolation interference between the pipette (5) and sealing shroud (4)
It is connected.
2. a kind of gradient filtration formula carbamide cleaner according to claim 1, it is characterised in that：The filter element (1) adopts
Multilamellar fusion-jet type PP cotton filter mediums, filter element (1) is using circular ring type die casting structure.
3. a kind of gradient filtration formula carbamide cleaner according to claim 1 and 2, it is characterised in that：The filter element (1) sets
Put three layers：With 25 μm of filtering accuracy, middle level (1-2) with 10 μm of filtering accuracy, internal layer (1-3) is with 5 for outer layer (1-1)
μm filtering accuracy.
4. a kind of gradient filtration formula carbamide cleaner according to claim 1, it is characterised in that：Bottom end cover (2), upper end cover
(3) it is connected using welding manner with filter element (1), at bottom end cover (2), upper end cover (3) and the connecting portion of filter element (1), is provided with bicyclic
Shape bulge-structure (A), strengthens the weld strength between end cap and filter element.
5. a kind of gradient filtration formula carbamide cleaner according to claim 1, it is characterised in that：Pipette (5) with it is close
The outside of big envelope (4) interpolation interference fit junction, arranges stainless steel lathe dog.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620943803.5U CN206063910U (en) | 2016-08-25 | 2016-08-25 | A kind of gradient filtration formula carbamide cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620943803.5U CN206063910U (en) | 2016-08-25 | 2016-08-25 | A kind of gradient filtration formula carbamide cleaner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206063910U true CN206063910U (en) | 2017-04-05 |
Family
ID=58432191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620943803.5U Active CN206063910U (en) | 2016-08-25 | 2016-08-25 | A kind of gradient filtration formula carbamide cleaner |
Country Status (1)
| Country | Link |
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| CN (1) | CN206063910U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109304051A (en) * | 2017-09-01 | 2019-02-05 | 中国石油化工股份有限公司 | A kind of gear shape water surface water-oil separating pumping filter |
| CN109305731A (en) * | 2017-09-01 | 2019-02-05 | 中国石油化工股份有限公司 | A kind of multistage oil slick absorbing separator |
-
2016
- 2016-08-25 CN CN201620943803.5U patent/CN206063910U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109304051A (en) * | 2017-09-01 | 2019-02-05 | 中国石油化工股份有限公司 | A kind of gear shape water surface water-oil separating pumping filter |
| CN109305731A (en) * | 2017-09-01 | 2019-02-05 | 中国石油化工股份有限公司 | A kind of multistage oil slick absorbing separator |
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