CN211158859U - Urea filter with cooling water heating function - Google Patents
Urea filter with cooling water heating function Download PDFInfo
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- CN211158859U CN211158859U CN201921461883.0U CN201921461883U CN211158859U CN 211158859 U CN211158859 U CN 211158859U CN 201921461883 U CN201921461883 U CN 201921461883U CN 211158859 U CN211158859 U CN 211158859U
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Abstract
The utility model discloses a urea filter with cooling water heating, which comprises a filter tank and a filter element arranged in the inner cavity of the filter tank, wherein the inner cavity of the filter tank is a urea solution cavity, an annular cavity with an upward opening is arranged in the tank wall of the filter tank around the urea solution cavity and is used as a cooling water cavity, the opening of the cooling water cavity is sealed by a thread sealing cover, and a cooling water inlet and outlet joint communicated with the cooling water cavity is arranged on the outer side wall of the filter tank; the outer side wall of the filtering tank is provided with a urea solution inlet joint communicated with the urea solution cavity, the top of the filtering tank is provided with a urea solution outlet joint communicated with the interior of the filter element, the bottom of the filtering tank is sealed by a sealing threaded cover, and the center of the sealing threaded cover is embedded with a vent valve; the filter element is equipped with a frost-resistant element for supporting the filter element. The utility model discloses utilize the high temperature recirculated cooling water of engine to heat the filter, make the urea solution unfreeze to guarantee that the filter among the aftertreatment system normally works under low temperature environment.
Description
Technical Field
The utility model relates to a filter field especially relates to a take urea filter of cooling water heating.
Background
Along with the six stages of the five rising countries in China, the emission requirements of various large automobile host factories are higher and higher, the application of the SCR post-treatment technology is more mature, the requirements on a urea filter in a post-treatment system are higher and higher, and a first-stage urea filter for filtering coarse impurities is added in the existing SCR post-treatment system; the urea filter is used for filtering urea solution in an SCR tail gas aftertreatment system, and the urea solution can be frozen at-11 ℃ to cause the aftertreatment system to be incapable of working normally, so that the urea filter needs to be heated, and the urea filter with a heating function needs to be designed.
SUMMERY OF THE UTILITY MODEL
Based on the technical problem that the background art exists, the utility model provides a take urea filter of cooling water heating, it can heat filter self when urea solution is filterable and avoid urea solution to freeze.
The utility model adopts the technical proposal that:
a urea filter with cooling water heating comprises a filter tank and a filter element arranged in the inner cavity of the filter tank, and is characterized in that the inner cavity of the filter tank is a urea solution cavity, an annular cavity with an upward opening is arranged in the tank wall of the filter tank around the urea solution cavity and serves as a cooling water cavity, the opening of the cooling water cavity is sealed by a threaded sealing cover, and a cooling water inlet joint and a cooling water outlet joint communicated with the cooling water cavity are arranged on the outer side wall of the filter tank; the outer side wall of the filter tank is provided with a urea solution inlet joint communicated with the urea solution cavity, the top of the filter tank is provided with a urea solution outlet joint communicated with the interior of the filter element, the bottom of the filter tank is sealed by a sealing threaded cover, and a waterproof vent valve is embedded and installed in the center of the sealing threaded cover; the filter element is fitted with a freeze resistant element for supporting the filter element.
The urea filter with the cooling water heating function is characterized in that the threaded sealing cover is an annular cover body, and the urea solution outlet joint penetrates through the middle of the threaded sealing cover.
The urea filter with the cooling water heating function is characterized in that the cooling water inlet joint is positioned on the side wall of the filter tank and lower than the cooling water outlet joint.
The urea filter with the cooling water heating function is characterized in that high-temperature circulating water is introduced into the cooling water cavity from the cooling water inlet joint.
The urea filter with the cooling water heating function is characterized in that the anti-freezing element is assembled into a whole by a pipe body made of an outer HNBR material and an inner ERDM material and is embedded into the filter element.
The urea filter with the cooling water heating function is characterized in that a mounting support is fixed on the outer side wall of the filter tank.
The urea filter with the cooling water heating function is characterized in that the filter element comprises a framework and a filter screen attached to the framework.
The urea filter with the cooling water heating function is characterized in that external threads are arranged at the upper end and the lower end of the outer side wall of the filter tank and are used for being screwed with the threaded sealing cover and the sealing threaded cover.
The cooling water cavity in the utility model is an annular cavity, and high-temperature circulating cooling water flows in the cavity and plays a role in heating the inside urea solution; the filter element and the anti-freezing element are assembled in the urea solution cavity, and the anti-freezing element has the function that the urea solution is extruded to deform when being frozen, so that the filter element is protected from being damaged; the anti-freezing element is assembled by two rubber material pipes which are resistant to urea, and the cost of the assembly can be reduced due to the high price of the HNBR material at the outer layer; the ventilation valve is characterized by being breathable and liquid-tight, and is used for discharging extruded air in the anti-freezing element when the urea solution is frozen and sucking air to achieve pressure balance when the anti-freezing element rebounds.
The utility model has the advantages that:
the utility model discloses utilize the high temperature recirculated cooling water of engine to heat the filter, make the urea solution unfreeze to guarantee that the filter among the aftertreatment system normally works under low temperature environment.
Drawings
Fig. 1 is a schematic view of the filter tank of the present invention.
Fig. 2 is a schematic side view of the canister of the present invention.
Fig. 3 is a front view of the overall structure of the present invention.
Fig. 4 is a side view of the overall structure of the present invention.
Fig. 5 is a schematic flow diagram of the discharge and intake air of the ventilation valve.
In the figure: the filter tank comprises a filter tank 1, a filter element 2, a urea solution cavity 3, a cooling water cavity 4, a thread sealing cover 5, a cooling water inlet joint 6, a cooling water outlet joint 7, a urea solution inlet joint 8, a urea solution outlet joint 9, a sealing thread cover 10, a vent valve 11, an anti-freezing element 12 and a mounting bracket 13.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Examples are given.
As shown in fig. 1-4, a urea filter with cooling water heating comprises a filter tank 1 and a filter element 2 arranged in the inner cavity of the filter tank 1, wherein the filter element 2 comprises an annular framework and a filter screen attached to the framework, and the framework comprises a plurality of transverse and longitudinal supports; an inner cavity of the filter tank 1 is a urea solution cavity 3, an annular cavity with an upward opening is formed in the wall of the filter tank 1 around the urea solution cavity 3 and serves as a cooling water cavity 4, the opening of the cooling water cavity 4 is sealed by a threaded sealing cover 5, the threaded sealing cover 5 is an annular cover body, cooling water inlet and outlet connectors 6 and 7 communicated with the cooling water cavity 4 are arranged on the outer side wall of the filter tank 1, the cooling water inlet connector 6 is positioned on the side wall of the filter tank 1 and is lower than the cooling water outlet connector 7, and high-temperature circulating water is introduced into the cooling water cavity 4 from the cooling water inlet connector 6; the outer side wall of the filtering tank 1 is provided with a urea solution inlet joint 8 communicated with the urea solution cavity 3, the top of the filtering tank 1 is provided with a urea solution outlet joint 9 communicated with the interior of the filter element 2, the urea solution outlet joint 9 penetrates through the middle part of the threaded sealing cover 5, the bottom of the filtering tank 1 is sealed by a sealing threaded cover 10, and a waterproof and air-permeable valve 11 which is air-permeable and liquid-impermeable is embedded and installed in the center of the sealing threaded cover 10; the filter element 2 is embedded with a freeze-proof element 12 for supporting the filter element, and the freeze-proof element 12 is assembled into a whole by a pipe body made of an outer HNBR material and an inner ERDM material.
The outer side wall of the filter tank 1 is fixed with a mounting bracket 13. The upper end and the lower end of the outer side wall of the filter tank 1 are both provided with external threads for screwing with the thread sealing cover 5 and the sealing thread cover 10.
The cooling water cavity 4 in the utility model is an annular cavity, high-temperature circulating cooling water flows in the cavity and plays a role of heating the inside urea solution, and the opening of the annular cavity is sealed by a spiral sealing cover 5; the filter element 2 and the anti-freezing element 12 are arranged in the urea solution cavity 3, and the anti-freezing element 12 has the function that the urea solution is extruded to deform when being frozen, so that the filter element 2 is protected from being damaged; the anti-freeze element 12 is made of a urea-resistant rubber material; a vent valve 11 is integrated in a sealing threaded cover 10 of the urea solution cavity 3, the vent valve 11 is characterized by being permeable and impermeable, and is used for discharging air extruded in the anti-freezing element 12 when the urea solution is frozen, sucking air to achieve pressure balance when the anti-freezing element 12 rebounds, and the flow directions of air discharge and air suction are shown in a figure 5 (indicated by a two-way arrow);
as shown in fig. 3, the high-temperature circulating cooling water is introduced into the cooling water cavity 4 through a cooling water inlet joint 6 on the outer side of the filter tank 1 and then flows out through a cooling water outlet joint 7 close to the upper part; as shown in fig. 4, the urea solution is directly introduced into the urea solution cavity 3 through the urea solution inlet joint 8, enters the filter element 2 through the filter medium, and then flows upwards out of the canister body to perform a filtering function.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (8)
1. A urea filter with cooling water heating comprises a filter tank and a filter element arranged in the inner cavity of the filter tank, and is characterized in that the inner cavity of the filter tank is a urea solution cavity, an annular cavity with an upward opening is arranged in the tank wall of the filter tank around the urea solution cavity and serves as a cooling water cavity, the opening of the cooling water cavity is sealed by a threaded sealing cover, and a cooling water inlet joint and a cooling water outlet joint communicated with the cooling water cavity are arranged on the outer side wall of the filter tank; the outer side wall of the filter tank is provided with a urea solution inlet joint communicated with the urea solution cavity, the top of the filter tank is provided with a urea solution outlet joint communicated with the interior of the filter element, the bottom of the filter tank is sealed by a sealing threaded cover, and a waterproof vent valve is embedded and installed in the center of the sealing threaded cover; the filter element is fitted with a freeze resistant element for supporting the filter element.
2. The urea filter with the function of heating cooling water according to claim 1, wherein the threaded sealing cover is an annular cover body, and a urea solution outlet joint penetrates through the middle of the threaded sealing cover.
3. The urea filter with cooling water heating of claim 1, wherein the cooling water inlet joint is located on the side wall of the canister at a position lower than the cooling water outlet joint.
4. The urea filter with the function of cooling water heating according to claim 1, wherein high-temperature circulating water is introduced into the cooling water cavity from a cooling water inlet joint.
5. The urea filter with cooling water heating of claim 1, wherein the anti-freezing element is assembled by an outer HNBR material and an inner ERDM material pipe body, and is embedded inside the filter element.
6. The urea filter with cooling water heating function of claim 1, wherein a mounting bracket is fixed on the outer side wall of the filter tank.
7. The urea filter with the function of heating cooling water according to claim 1, wherein the filter element comprises a framework and a filter screen attached to the framework.
8. The urea filter with the function of heating cooling water according to claim 1, wherein the upper end and the lower end of the outer side wall of the filter tank are provided with external threads for screwing with a threaded sealing cover and a sealing threaded cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921461883.0U CN211158859U (en) | 2019-09-04 | 2019-09-04 | Urea filter with cooling water heating function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921461883.0U CN211158859U (en) | 2019-09-04 | 2019-09-04 | Urea filter with cooling water heating function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211158859U true CN211158859U (en) | 2020-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921461883.0U Active CN211158859U (en) | 2019-09-04 | 2019-09-04 | Urea filter with cooling water heating function |
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| Country | Link |
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| CN (1) | CN211158859U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110433562A (en) * | 2019-09-04 | 2019-11-12 | 合肥威尔燃油系统股份有限公司 | A kind of urea filter with cooling water heating |
-
2019
- 2019-09-04 CN CN201921461883.0U patent/CN211158859U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110433562A (en) * | 2019-09-04 | 2019-11-12 | 合肥威尔燃油系统股份有限公司 | A kind of urea filter with cooling water heating |
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