CN212003374U - Circular tube type EGR cooler - Google Patents
Circular tube type EGR cooler Download PDFInfo
- Publication number
- CN212003374U CN212003374U CN202020565993.8U CN202020565993U CN212003374U CN 212003374 U CN212003374 U CN 212003374U CN 202020565993 U CN202020565993 U CN 202020565993U CN 212003374 U CN212003374 U CN 212003374U
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- flange
- egr cooler
- casing
- connecting tube
- sealing
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Abstract
The utility model discloses a pipe formula EGR cooler, which comprises a housin, the upper end of casing is provided with the coolant liquid import, the lower extreme of casing is provided with the coolant liquid export, the inside symmetry of casing is provided with two baffles, two evenly distributed has a plurality of cooling tubes between the baffle, the both ends of casing all are provided with the flange, the flange can be dismantled through installation mechanism and be connected with the connecting tube, be provided with positioning mechanism between flange and the connecting tube. The utility model has the advantages of reasonable design, can guarantee the gas tightness between connecting tube and the flange, prevent that waste gas from taking place the condition of leaking, effectual guarantee exhaust-gas treatment's effect, and can be quick install the location with connecting tube, the convenient butt joint is fixed.
Description
Technical Field
The utility model relates to a EGR cooler technical field especially relates to a circular tube formula EGR cooler.
Background
An EGR cooling system is a device provided to reduce NOx emissions from automobile exhaust, and is an exhaust gas recirculation system. At higher speeds of the vehicle, a small amount of exhaust gas is reintroduced into the intake valve. The temperature of the exhaust gas is related to the amount of NOx emissions. The lower the temperature of the exhaust gas, the better the NOx suppression effect on the engine. The EGR cooler may reduce the temperature of the exhaust gas entering the cylinder, which is certainly beneficial for engine thermal loads to reduce engine temperature.
Among the prior art, all can add EGR cooler in the device that the tail gas was handled as the equipment of exhaust-gas cooling processing, and the circular tube formula EGR cooler is at the in-process of butt joint, because the airtight effect of junction is not good, the condition of leaking appears easily to can influence exhaust-gas treatment's effect.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the shortcoming that exists among the prior art, and the circular tube formula EGR cooler that proposes, it can guarantee the gas tightness between connecting tube and the flange, prevents that waste gas from taking place the condition of leaking, effectual guarantee exhaust-gas treatment's effect, and can be quick install the connecting tube and fix a position, and convenient butt joint is fixed.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a pipe formula EGR cooler, includes the casing, the upper end of casing is provided with the coolant liquid import, the lower extreme of casing is provided with the coolant liquid export, the inside symmetry of casing is provided with two baffles, two evenly distributed has a plurality of cooling tubes between the baffle, the both ends of casing all are provided with the flange, the flange can be dismantled through installation mechanism and be connected with the connecting tube, be provided with positioning mechanism between flange and the connecting tube, still be provided with sealing mechanism between flange and the connecting tube.
Preferably, the installation mechanism includes a plurality of mounting holes that the circumference equidistant set up on flange and connecting tube, the inside of mounting hole is provided with fixing bolt, fixing bolt goes up the screw thread and has connect fixation nut soon.
Preferably, positioning mechanism includes the solid fixed ring of fixed connection on the connecting tube lateral wall, gu fixed ring's lateral wall is provided with a plurality of locating pieces along its circumference equidistant, the lateral wall of flange is provided with a plurality of constant head tanks with locating piece looks adaptation.
Preferably, solid fixed ring and locating piece are integrative structure, solid fixed ring's outside diameter is less than the inside diameter of flange.
Preferably, the sealing mechanism comprises a sealing groove arranged on the side wall of the flange, and a sealing ring is arranged inside the sealing groove.
Preferably, the sealing ring is fixed inside the sealing groove in a glue adhesion mode.
The utility model discloses possess following beneficial effect:
1. through the arrangement of the mounting mechanism, the mounting and fixing of the connecting pipeline can be quickly realized through the matching of the fixing bolt and the fixing nut;
2. through the arrangement of the positioning mechanism, the connecting pipeline can be quickly installed and positioned, and the butt joint between the connecting pipeline and the flange is completed;
3. through the setting of sealing mechanism, played sealed effect through the sealing washer, guaranteed the gas tightness of connecting pipe and flange.
Drawings
Fig. 1 is a schematic structural diagram of a circular tube EGR cooler according to the present invention;
fig. 2 is a schematic structural diagram of a positioning mechanism of a circular tube EGR cooler according to the present invention.
In the figure: the cooling device comprises a cooling liquid inlet 1, a shell 2, a partition plate 3, a cooling liquid outlet 4, a flange 5, a fixing nut 6, a fixing bolt 7, a connecting pipeline 8, a mounting hole 9, a sealing groove 10, a sealing ring 11, a positioning groove 12, a fixing ring 13 and a positioning block 14.
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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1-2, a circular tube EGR cooler comprises a housing 2, a coolant inlet 1 is arranged at the upper end of the housing 2, a coolant outlet 4 is arranged at the lower end of the housing 2, two partition plates 3 are symmetrically arranged inside the housing 2, a plurality of cooling tubes are uniformly distributed between the two partition plates 3, and flanges 5 are arranged at the two ends of the housing 2.
Be provided with positioning mechanism between flange 5 and connecting pipe 8, positioning mechanism includes solid fixed ring 13 of fixed connection on 8 lateral walls of connecting pipe, solid fixed ring 13's lateral wall is provided with a plurality of locating pieces 14 along its circumference equidistant, flange 5's lateral wall is provided with a plurality of constant head tanks 12 with 14 looks adaptations of locating piece, solid fixed ring 13 is a body structure with locating piece 14, gu fixed ring 13's outside diameter is less than flange 5's inboard diameter, locating piece 14 inserts the inside of constant head tank 12, can realize that connecting pipe 8 can be quick installs the location, accomplish and dock between connecting pipe 8 and the flange 5.
Still be provided with sealing mechanism between flange 5 and the connecting tube 8, sealing mechanism is including setting up seal groove 10 on flange 5 lateral wall, and the inside of seal groove 10 is provided with sealing washer 11, and sealing washer 11 has played sealed effect through sealing washer 11 in the inside of seal groove 10 through the mode of glue adhesion, has guaranteed connecting tube 8 and flange 5's gas tightness.
During the butt joint, at first insert the inside of constant head tank 12 with locating piece 14, realize that connecting tube 8 can be quick install the location, accomplish the butt joint between connecting tube 8 and the flange 5, mounting hole 9 on connecting tube 8 and the flange 5 aligns, it is fixed with the installation that fixing bolt 7 and fixation nut 6's cooperation realization connecting tube 8 and flange 5 is recycled afterwards, and simultaneously, sealing washer 11 offsets tightly with connecting tube 8's lateral wall surface, sealed effect has been played, the gas tightness of connecting tube 8 and flange 5 has been guaranteed.
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 design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a pipe formula EGR cooler, includes casing (2), its characterized in that, the upper end of casing (2) is provided with coolant liquid inlet (1), the lower extreme of casing (2) is provided with coolant liquid outlet (4), the inside symmetry of casing (2) is provided with two baffle (3), two evenly distributed has a plurality of cooling tubes between baffle (3), the both ends of casing (2) all are provided with flange (5), flange (5) can be dismantled through installation mechanism and be connected with connecting tube (8), be provided with positioning mechanism between flange (5) and connecting tube (8), still be provided with sealing mechanism between flange (5) and connecting tube (8).
2. The circular tube type EGR cooler according to claim 1, characterized in that the mounting mechanism comprises a plurality of mounting holes (9) circumferentially arranged on the flange (5) and the connecting pipe (8) at equal intervals, the mounting holes (9) are internally provided with fixing bolts (7), and fixing nuts (6) are screwed on the fixing bolts (7).
3. The tubular EGR cooler according to claim 1, wherein the positioning mechanism comprises a fixing ring (13) fixedly connected to the side wall of the connecting pipe (8), the side wall of the fixing ring (13) is provided with a plurality of positioning blocks (14) at equal intervals along the circumferential direction thereof, and the side wall of the flange (5) is provided with a plurality of positioning grooves (12) adapted to the positioning blocks (14).
4. A tubular EGR cooler according to claim 3 characterized in that the retaining ring (13) and the locating block (14) are of one piece construction, the outside diameter of the retaining ring (13) being smaller than the inside diameter of the flange (5).
5. The circular tube type EGR cooler according to claim 1, characterized in that the sealing mechanism comprises a sealing groove (10) arranged on the side wall of the flange (5), and a sealing ring (11) is arranged inside the sealing groove (10).
6. The circular tube EGR cooler according to claim 5, wherein the sealing ring (11) is fixed inside the sealing groove (10) by means of glue adhesion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020565993.8U CN212003374U (en) | 2020-04-16 | 2020-04-16 | Circular tube type EGR cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020565993.8U CN212003374U (en) | 2020-04-16 | 2020-04-16 | Circular tube type EGR cooler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212003374U true CN212003374U (en) | 2020-11-24 |
Family
ID=73415189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020565993.8U Active CN212003374U (en) | 2020-04-16 | 2020-04-16 | Circular tube type EGR cooler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212003374U (en) |
-
2020
- 2020-04-16 CN CN202020565993.8U patent/CN212003374U/en active Active
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