CN211851965U - Urea pipe heating joint of SCR system - Google Patents
Urea pipe heating joint of SCR system Download PDFInfo
- Publication number
- CN211851965U CN211851965U CN202020463319.9U CN202020463319U CN211851965U CN 211851965 U CN211851965 U CN 211851965U CN 202020463319 U CN202020463319 U CN 202020463319U CN 211851965 U CN211851965 U CN 211851965U
- Authority
- CN
- China
- Prior art keywords
- pipe
- connecting pipe
- heating
- fixed disc
- scr system
- 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.)
- Expired - Fee Related
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 63
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 239000004202 carbamide Substances 0.000 title claims abstract description 35
- 238000004321 preservation Methods 0.000 claims abstract description 7
- 230000000149 penetrating effect Effects 0.000 claims abstract 2
- 229920000742 Cotton Polymers 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 2
- 230000006978 adaptation Effects 0.000 claims 1
- 239000000243 solution Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 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
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 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
- 239000003054 catalyst Substances 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 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
- 230000000630 rising effect Effects 0.000 description 1
- 239000002699 waste material 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
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Exhaust Gas After Treatment (AREA)
Abstract
The utility model discloses a heating joint of a urea pipe of an SCR system, which comprises a male joint and a female joint, wherein the female joint comprises a second connecting pipe, the male joint comprises a first connecting pipe, one end of the first connecting pipe is provided with a fixed disc, the center of the fixed disc is provided with a through hole, the inner center of the first connecting pipe is provided with a heat conducting pipe, the inner part of the heat conducting pipe is provided with a second heating pipe, two sides of the second heating pipe are respectively connected with a supporting pipe penetrating through the outer wall of the first connecting pipe, the outer part of the first connecting pipe is sleeved with the first heating pipe, the outer part of the first heating pipe is provided with two arc plates, the outer parts of the two arc plates are sleeved with a fixed sleeve together, the inner part of the fixed sleeve is provided with a heat preservation layer, the center of one side of the fixed disc, which is far away from the first connecting pipe, is, the utility model discloses, have the heating effectual, be convenient for reduce the heat and scatter and disappear the characteristics of etc.
Description
Technical Field
The utility model relates to a SCR technical field specifically is a SCR system urea pipe heating joint.
Background
At present, the scale of motor vehicles is getting bigger and bigger, the environmental problems caused by the motor vehicles are getting worse, and especially the pollution of automobile exhaust to the atmosphere is caused. From the mainstream diesel engine production enterprises in China at present, the SCR is basically agreed as the main technical direction for upgrading the emission of the diesel engine in China in the future. The main pollutant of diesel engine is NOx, and in order to reduce the emission of NOx, the main technical route used in the automobile industry is Selective Catalytic Reduction (SCR), i.e. ammonia, urea or other nitrogen-containing compounds are injected into the exhaust gas containing NOx, and the nitrogen oxides are reduced into nitrogen, carbon dioxide and water under the action of catalyst. In the case of a low temperature, the urea aqueous solution crystallizes, and therefore the urea pipe needs to have a heating function, usually by providing a heating joint on the urea pipe.
The existing heating joint has poor heating effect, and the temperature rises slowly because the resistance wire is arranged outside the urea pipe for heating; meanwhile, due to the poor heat preservation effect, heat is easy to dissipate, heat waste is caused, and the heating efficiency is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a SCR system urea pipe heating joint to solve the problem that proposes among the above-mentioned background art.
In order to solve the technical problem, the utility model provides a following technical scheme: an SCR system urea pipe heating joint comprises a male joint and a female joint, wherein the female joint comprises a second connecting pipe, the male connector comprises a first connecting pipe, one end of the first connecting pipe is provided with a fixed disc, the center of the fixed disc is provided with a through hole, a heat conduction pipe is arranged at the center of the interior of the first connecting pipe, a second heating pipe is arranged in the heat conduction pipe, two sides of the second heating pipe are respectively connected with a supporting pipe which passes through the outer wall of the first connecting pipe, the first heating pipe is sleeved outside the first connecting pipe, two arc plates are arranged outside the first heating pipe, a fixed sleeve is sleeved outside the two arc plates, the fixed sleeve is internally provided with a heat insulation layer, the center of one side of the fixed disc, which is far away from the first connecting pipe, is connected with a connecting pipe, and the connecting pipe is connected with the second connecting pipe in a thread fit manner.
Furthermore, the heat-insulating layer is composed of a plurality of heat-insulating cotton slivers which are fixedly bonded on the inner wall of the fixed sleeve.
Furthermore, the arc plate is provided with a mounting groove matched with the outer wall of the supporting pipe, and the arc plate is combined to form a cylindrical structure.
Furthermore, one end, far away from the fixed disc, of the inner diameter of the first connecting pipe is connected with a urea connecting pipe, and the inner diameter of the urea connecting pipe is smaller than that of the first connecting pipe.
Furthermore, a first locking nut and a second locking nut are respectively arranged outside the connecting pipe and the second connecting pipe.
Furthermore, four first threaded holes are uniformly distributed in the circumference of one end, close to the shoe, of the fixed circular disc, of the fixed sleeve, four third threaded holes are uniformly distributed in the circumference of the outer wall of the fixed circular disc, and second fastening screws matched with the first threaded holes penetrate through the first threaded holes and the corresponding third threaded holes.
Furthermore, two second threaded holes are symmetrically formed in one end, close to the fixed disc, of each of the two arc plates, fourth threaded holes corresponding to the plurality of second threaded holes are formed in the fixed disc, and first fastening screws matched with the second threaded holes penetrate through the second threaded holes and the corresponding fourth threaded holes.
Compared with the prior art, the utility model discloses the beneficial effect who reaches is: the utility model discloses, through being provided with second heating pipe and first heating pipe, heat the urea solution in the first takeover, the internal diameter of first takeover is greater than the urea takeover internal diameter simultaneously, slows down the velocity of flow when urea solution flows into the first takeover inside, and the second heating pipe is located the first takeover inside center, and first heating pipe cup joints in the first takeover outer wall, has promoted the heating effect greatly; meanwhile, the first heating pipe and the second heating pipe are convenient to install and connect by arranging supporting pipes, circular ring plates and other components.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.
In the drawings:
fig. 1 is an overall exploded view of the present invention;
fig. 2 is a schematic view of the overall structure of the present invention;
fig. 3 is a schematic view of the installation of a second heating pipe according to the present invention;
fig. 4 is a schematic structural view of the fixing sleeve of the present invention;
fig. 5 is a schematic structural view of the arc plate of the present invention;
in the figure: 1. a male connector; 11. fixing the sleeve; 111. a heat-insulating layer; 112. a first threaded hole; 12. urea connecting pipe; 13. a circular arc plate; 14. a second threaded hole; 15. fixing the disc; 151. a third threaded hole; 152. a fourth threaded hole; 153. mounting holes; 154. a first fastening screw; 155. a second fastening screw; 156. a through hole; 16. a connecting pipe; 161. a first lock nut; 17. a first adapter tube; 18. a first heating pipe; 19. a heat conducting pipe; 191. a second heating pipe; 192. supporting a tube; 2. a female joint; 21. a second lock nut; 22. and a second connecting pipe.
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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a SCR system urea pipe heating connects, including male joint 1 and female joint 2, female joint 2 includes that the second takes over 22, male joint 1 includes first takeover 17, the one end of first takeover 17 is equipped with fixed disc 15, through-hole 156 has been seted up at the center of fixed disc 15, the inside center of first takeover 17 is equipped with heat pipe 19, the internally mounted of heat pipe 19 has second heating pipe 191, the both sides of second heating pipe 191 are connected with one respectively and pass through the stay tube 192 of first takeover 17 outer wall, first heating pipe 18 has been cup jointed to the outside of first takeover 17, the outside of first heating pipe 18 is equipped with two circular arc boards 13, a fixed sleeve 11 has been cup jointed jointly to the outside of two circular arc boards 13, the inside of fixed sleeve 11 is equipped with heat preservation 111, one side center that first takeover 17 was kept away from to fixed disc 15 is connected with connecting pipe 16, connecting pipe 16 is connected through.
The heat preservation layer 111 is composed of a plurality of heat preservation cotton slivers which are bonded and fixed on the inner wall of the fixed sleeve 11, so that heat inside the first connecting pipe 17 is effectively prevented from being dissipated, and the heating effect is improved.
The arc plates 13 are provided with mounting grooves matched with the outer wall of the support tube 192, and the two arc plates 13 are combined to form a cylindrical structure, so that the support tube 192 is convenient to mount, limit and improve to protect the first heating tube 18.
The end of the inner diameter of the first connecting pipe 17 far away from the fixed disk 15 is connected with a urea connecting pipe 12, and the inner diameter of the urea connecting pipe 12 is smaller than that of the first connecting pipe 17, so that the flow rate of the solution flowing into the first connecting pipe 17 from the urea connecting pipe 12 is reduced.
The connecting pipe 16 and the second adapter 22 are externally provided with a first lock nut 161 and a second lock nut 21, respectively, to facilitate the fitting operation of the male connector 1 and the female connector 2.
Four first threaded holes 112 are uniformly distributed in the circumference of one end, close to the fixed disc 15, of the shoe of the fixed sleeve 11, four third threaded holes 151 are uniformly distributed in the circumference of the outer wall of the fixed disc 15, and second fastening screws 155 matched with the first threaded holes 112 and the corresponding third threaded holes 151 penetrate through the first threaded holes 112, so that the fixed sleeve 11 can be quickly disassembled and assembled.
Two second threaded holes 14 are symmetrically formed in one ends, close to the fixed disc 15, of the two arc plates 13 respectively, fourth threaded holes 152 corresponding to the plurality of second threaded holes 14 are formed in the fixed disc 15, and first fastening screws 154 matched with the second threaded holes 14 and the corresponding fourth threaded holes 152 penetrate through the second threaded holes 14 and the corresponding fourth threaded holes 152, so that the two arc plates 13 can be conveniently installed and fixed.
Two mounting holes 153 are further formed in the fixed disk 15, and the connector lugs at the two ends of the first heating pipe 18 penetrate through the two mounting holes 153, so that the first heating pipe 18 can be conveniently connected.
When the urea solution flows into the heating joint, the inner diameter of the first connecting pipe 17 is larger than that of the urea connecting pipe 12, when the first urea solution flows in, the flow rate of the first urea solution is reduced, the second heating pipe 191 and the first heating pipe 18 heat simultaneously, the first heating pipe 18 is positioned outside the first connecting pipe 17, the second heating pipe 191 is positioned in the center inside the first connecting pipe 17, the urea solution is conveniently and fully heated, the temperature rising speed is fast, and the heating effect is good; meanwhile, the second fastening screw 155, the first fastening screw 154 and the support tube 192 are provided, so that the second heating tube 191 and the first heating tube 18 can be conveniently mounted, the lead connection of the second heating tube and the first heating tube is convenient, the first heating tube 18 can be rapidly mounted and dismounted, and the maintenance and replacement of the first heating tube are convenient.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a SCR system urea pipe heating connects, includes male joint and female joint, its characterized in that: the female joint comprises a second connecting pipe, the male joint comprises a first connecting pipe, a fixed disc is arranged at one end of the first connecting pipe, a through hole is formed in the center of the fixed disc, a heat conduction pipe is arranged at the center of the interior of the first connecting pipe, a second heating pipe is arranged inside the heat conduction pipe, two supporting pipes penetrating through the outer wall of the first connecting pipe are connected to two sides of the second heating pipe respectively, the first heating pipe is sleeved outside the first connecting pipe, two arc plates are arranged outside the first heating pipe, a fixed sleeve is sleeved outside the two arc plates together, a heat insulation layer is arranged inside the fixed sleeve, the fixed disc is far away from the center of one side of the first connecting pipe, and the connecting pipe is connected with the second connecting pipe in a threaded fit mode.
2. The SCR system urea pipe heating sub of claim 1, wherein: the heat preservation layer is composed of a plurality of heat preservation cotton slivers which are fixedly bonded on the inner wall of the fixed sleeve.
3. The SCR system urea pipe heating sub of claim 1, wherein: the arc plates are provided with mounting grooves matched with the outer wall of the supporting pipe, and the two arc plates are combined to form a cylindrical structure.
4. The SCR system urea pipe heating sub of claim 1, wherein: one end, far away from the fixed disc, of the inner diameter of the first connecting pipe is connected with a urea connecting pipe, and the inner diameter of the urea connecting pipe is smaller than that of the first connecting pipe.
5. The SCR system urea pipe heating sub of claim 1, wherein: and a first locking nut and a second locking nut are respectively arranged outside the connecting pipe and the second connecting pipe.
6. The SCR system urea pipe heating sub of claim 1, wherein: the fixed sleeve is close to the shoe end circumference equipartition of fixed disc has four first screw holes, fixed disc outer wall circumference equipartition has four third screw holes, first screw hole rather than correspond wear to be equipped with the second fastening screw of looks adaptation in the third screw hole.
7. The SCR system urea pipe heating sub of claim 1, wherein: two second threaded holes are symmetrically formed in one end, close to the fixed disc, of each of the two arc plates, fourth threaded holes corresponding to the plurality of second threaded holes are formed in the fixed disc, and first fastening screws matched with the second threaded holes penetrate through the second threaded holes and the corresponding fourth threaded holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020463319.9U CN211851965U (en) | 2020-04-01 | 2020-04-01 | Urea pipe heating joint of SCR system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020463319.9U CN211851965U (en) | 2020-04-01 | 2020-04-01 | Urea pipe heating joint of SCR system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211851965U true CN211851965U (en) | 2020-11-03 |
Family
ID=73144589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020463319.9U Expired - Fee Related CN211851965U (en) | 2020-04-01 | 2020-04-01 | Urea pipe heating joint of SCR system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211851965U (en) |
-
2020
- 2020-04-01 CN CN202020463319.9U patent/CN211851965U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201103 |