CN204879245U - Urea pipe electrical heating of SCR system connects - Google Patents
Urea pipe electrical heating of SCR system connects Download PDFInfo
- Publication number
- CN204879245U CN204879245U CN201520617467.0U CN201520617467U CN204879245U CN 204879245 U CN204879245 U CN 204879245U CN 201520617467 U CN201520617467 U CN 201520617467U CN 204879245 U CN204879245 U CN 204879245U
- Authority
- CN
- China
- Prior art keywords
- urea
- joint
- scr system
- urea tube
- joint body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 62
- 239000004202 carbamide Substances 0.000 title claims abstract description 62
- 238000010438 heat treatment Methods 0.000 title abstract description 6
- 238000001746 injection moulding Methods 0.000 claims abstract description 4
- 238000005485 electric heating Methods 0.000 claims description 14
- 238000009434 installation Methods 0.000 abstract description 4
- 238000003466 welding Methods 0.000 abstract description 4
- 238000002425 crystallisation Methods 0.000 abstract description 3
- 230000008025 crystallization Effects 0.000 abstract description 3
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 6
- 238000010257 thawing Methods 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910001868 water Inorganic materials 0.000 description 1
Landscapes
- Exhaust Gas After Treatment (AREA)
Abstract
The utility model relates to a SCR technical field specifically is an urea pipe electrical heating of SCR system connects, including connecting the body, be equipped with the urea pipe connector mouth end with the urea union coupling on the joint body, the axis of urea pipe connector mouth end is perpendicular with the axis that connects the body, connect the body outside and be equipped with the spiral groove rather than integrative injection moulding, twine in spiral groove according to the heating temperature of SCR system requirements and the size and the density of the definite required resistance wire of heat time requirement, be equipped with level and smooth mounting hole in the urea pipe connector mouth end, manage urea in the insert the installation hole and through laser beam welding welded fastening during the installation. The utility model discloses the urea speed of unfreezeing can be promoted, the problem of urea crystallization and seepage is avoided.
Description
Technical field
The utility model relates to SCR technical field, specifically a kind of SCR system urea tube electric heating joint.
Background technique
Current atmospheric is seriously polluted, and the automobile that wherein automobile especially uses diesel engine to do power is important pollution sources.The topmost pollutant of diesel engine is NOx, for reducing the discharge of NOx, the main technological route that automobile industry uses is exactly selective catalytic reduction (SCR), namely in containing the tail gas of NOx, spray into ammonia, urea or other nitrogen-containing compounds, under the effect of catalyzer, make reduction of nitrogen oxide become nitrogen, carbon dioxide and water.
Due to when temperature is lower, aqueous solution of urea meeting crystallization, therefore urea tube needs to have heating function, for thawing to the urea of crystallization.The two ends fitting joint of current urea tube, is wound with resistance wire outside urea tube, is heated by resistance wire to urea tube.But because joint does not have resistance wire, cause the temperature of joint to rise slow, the urea thawing rate of joint is slow.In addition, in order to urea tube can be made reliably to be connected with joint, the urea tube interface end on joint adopts ring pawl respective outer side edges, and this causes the joint of urea tube and urea tube interface end to form a step, there is the problem of urea crystals and seepage when low temperature.
Model utility content
The purpose of this utility model is to solve above-mentioned the deficiencies in the prior art, provides a kind of technological scheme of SCR system urea tube electric heating joint, can promote urea thawing rate, avoid the problem of urea crystals and seepage.
Technical problem to be solved in the utility model realizes by the following technical solutions: a kind of SCR system urea tube electric heating joint, comprise joint body, described joint body is provided with urea tube interface end, described joint body outside is provided with helical groove, requires the heating-up temperature required and heating time to determine the size of required resistance wire and density and be wrapped in helical groove according to SCR system.
The technical solution of the utility model also has: described helical groove and joint body integrated injection molding.
The technical solution of the utility model also has: be provided with level and smooth mounting hole in described urea tube interface end, to be inserted by urea tube in mounting hole and be welded and fixed by laser beam welding during installation.
The technical solution of the utility model also has: the described axis of urea tube interface end and the axes normal of joint body.
The technical solution of the utility model also has: be provided with O type circle in the endoporus of described joint body, and when joint is connected with SAE male end joint, O type encloses the effect of sealing anti-leak.
The technical solution of the utility model also has: the outer cover of described joint body is provided with clamp, and when joint is connected with SAE male end joint, clamp plays effect that is fixing, anticreep.
Relative to prior art, the beneficial effect of the utility model SCR system urea tube electric heating joint is: (1) is passed through at joint body outer installment helical groove, can be wrapped in groove by resistance wire, butt joint place is heated, and effectively improves the thawing rate of urea; (2) urea tube interface end is changed into level and smooth mounting hole by ring pawl shape mounting hole, urea tube to be inserted in mounting hole and to be welded and fixed by laser beam welding, avoid the joint of urea tube and urea tube interface end to occur step, solve the therefore problem of the urea crystals caused and seepage.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing urea interface tube end and urea tube joint.
Fig. 2 is the structural representation of the utility model SCR system urea tube electric heating joint.
Fig. 3 is the structural representation that the utility model SCR system urea tube electric heating joint is connected with urea tube and SAE male end joint.
In figure: 1, the urea tube interface end of prior art, 2, the urea tube of prior art, 3, step, 4, joint body, 5, urea tube interface end, 6, helical groove, 7, mounting hole, 8, O type circle, 9, clamp, 10, urea tube, 11, laser bonding region, 12, SAE male end joint.
Embodiment
For the technical characterstic of this programme can be clearly demonstrated, with reference to the accompanying drawings the utility model embodiment is described further below.
As shown in Figure 2 and Figure 3, a kind of SCR system urea tube electric heating joint, comprise joint body 4, O type circle 8 is provided with in the endoporus of described joint body 4, the outer cover of joint body 4 is provided with clamp 9, joint body 4 is provided with urea tube interface end 5, the axis of described urea tube interface end 5 and the axes normal of joint body 4; Described joint body 4 outside is provided with the helical groove 6 with its integrated injection molding, requires the heating-up temperature required and heating time to determine the size of required resistance wire and density and be wrapped in helical groove 6 according to SCR system; Be provided with level and smooth mounting hole 7 in described urea tube interface end 5, during installation, urea tube 8 inserted in mounting hole 7 and to be welded and fixed by laser beam welding.
By reference to the accompanying drawings embodiment of the present utility model is elaborated above, but the utility model is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, can also make a variety of changes under the prerequisite not departing from the utility model aim.
Claims (6)
1. a SCR system urea tube electric heating joint, comprises joint body (4), and described joint body (4) is provided with urea tube interface end (5), it is characterized in that: described joint body (4) outside is provided with helical groove (6).
2. SCR system urea tube electric heating joint according to claim 1, is characterized in that: described helical groove (6) and joint body (4) integrated injection molding.
3. SCR system urea tube electric heating joint according to claim 1, is characterized in that: be provided with level and smooth mounting hole (7) in described urea tube interface end (5).
4., according to the arbitrary described SCR system urea tube electric heating joint of claim 1-3, it is characterized in that: the axis of described urea tube interface end (5) and the axes normal of joint body (4).
5., according to the arbitrary described SCR system urea tube electric heating joint of claim 1-3, it is characterized in that: in the endoporus of described joint body (4), be provided with O type circle (8).
6., according to the arbitrary described SCR system urea tube electric heating joint of claim 1-3, it is characterized in that: the outer cover of described joint body (4) is provided with clamp (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520617467.0U CN204879245U (en) | 2015-08-17 | 2015-08-17 | Urea pipe electrical heating of SCR system connects |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520617467.0U CN204879245U (en) | 2015-08-17 | 2015-08-17 | Urea pipe electrical heating of SCR system connects |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204879245U true CN204879245U (en) | 2015-12-16 |
Family
ID=54823617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520617467.0U Active CN204879245U (en) | 2015-08-17 | 2015-08-17 | Urea pipe electrical heating of SCR system connects |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204879245U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013782A (en) * | 2017-05-26 | 2017-08-04 | 凯龙高科技股份有限公司 | A kind of hot type integral type urea tube |
| CN107355287A (en) * | 2017-08-23 | 2017-11-17 | 弗兰科希管件系统（上海）有限公司 | Joint design and pipe-line system |
| CN112855313A (en) * | 2021-03-29 | 2021-05-28 | 河北亚大汽车塑料制品有限公司 | Connection process of automobile urea pipe |
-
2015
- 2015-08-17 CN CN201520617467.0U patent/CN204879245U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013782A (en) * | 2017-05-26 | 2017-08-04 | 凯龙高科技股份有限公司 | A kind of hot type integral type urea tube |
| CN107355287A (en) * | 2017-08-23 | 2017-11-17 | 弗兰科希管件系统（上海）有限公司 | Joint design and pipe-line system |
| CN112855313A (en) * | 2021-03-29 | 2021-05-28 | 河北亚大汽车塑料制品有限公司 | Connection process of automobile urea pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |