CN-117386490-B - Fuel urea tank module

CN117386490BCN 117386490 BCN117386490 BCN 117386490BCN-117386490-B

Abstract

The invention discloses a fuel urea tank module, which comprises a tank body, wherein an improved structure is adopted in the scheme, a converging mechanism is added in a chamber II for containing urea, a chamber III is formed in a shell, a heating resistance wire is arranged in a chamber wall, the chamber III is communicated with the outside through a through hole so as to enable urea to enter, the urea in the chamber III is thawed through heating of the heating resistance wire, and the urea in the chamber II is thawed in the gradual heating process.

Inventors

HE JUN
Sheng Zhenhai
ZHANG LEI
QIU WEI
LUO WENMIN

Assignees

宁波春华汽配有限公司

Dates

Publication Date: 20260505
Application Date: 20231115

Claims (10)

1. The fuel urea tank module comprises a tank body, a first chamber and a second chamber which are separated into independent chambers in a cavity of the tank body, wherein the first chamber is used for containing fuel, the second chamber is used for containing urea, the second chamber is internally provided with a converging mechanism, the converging mechanism comprises a shell, heat conducting fins, heating resistance wires, heat conducting strips and a liquid pumping pipe, the inner forming of the shell is provided with a third sealing chamber and the heating resistance wires are arranged in the wall of the third chamber, the third chamber comprises a transverse end and a longitudinal end, the transverse end is in an inclined shape and is communicated with the longitudinal end, the heat conducting strips are arranged in the chamber of the longitudinal end and are connected with the wall of the longitudinal end, one end of the liquid pumping pipe is positioned in the chamber of the longitudinal end, the other end of the liquid pumping pipe is positioned outside the shell, the peripheral wall corresponding to the third transverse end of the chamber is provided with the heat conducting fins, and the peripheral wall of the third chamber is provided with a plurality of through holes communicated with the two chambers.
2. The fuel urea tank module as set forth in claim 1, wherein a groove is formed at the bottom wall of the second chamber, the longitudinal end of the third chamber is located in the groove, and a gap exists between the peripheral wall of the third chamber and the wall of the groove.
3. The fuel urea tank module as set forth in claim 2, wherein a urea drain is provided at the bottom wall of the recess and an end cap for sealing is provided.
4. The fuel urea tank module as set forth in claim 3, wherein a mounting hole is formed at the bottom wall of the tank body corresponding to the second chamber and a sealing cover is fixed at the mounting hole, and the groove is formed at the sealing cover.
5. The fuel urea tank module as set forth in claim 1, wherein the heat conducting fin comprises a sheet body and ribs, the sheet body is arranged around the upper part of the corresponding peripheral wall of the chamber III at intervals, the ribs are arranged on the front surface and the back surface of the sheet body at intervals along the length direction, and part of the through holes are arranged between the two sheet bodies.
6. The fuel urea tank module as set forth in claim 1, wherein the tank body is provided with through holes, the walls of the adjacent through holes are mutually connected, and the walls of the through holes at the side are connected with the side wall of the tank body, so that the interior of the tank body is divided into a first chamber and a second chamber which are independent by the through holes.
7. The fuel urea tank module as set forth in claim 1, wherein a fuel filler is provided at a top wall of the first chamber, a urea filler is provided at a top wall of the second chamber, and an oil drain is provided at a bottom wall of the first chamber.
8. The fuel urea tank module as set forth in claim 7, wherein the fuel filler and the urea filler are provided with filter cups.
9. The fuel urea tank module as set forth in claim 1, wherein the top wall of the first chamber and the top wall of the second chamber are respectively provided with a sensor interface, the sensor interfaces are respectively provided with a fuel sensor and a urea sensor, the top wall of the second chamber is provided with a second mounting hole, the second mounting hole is provided with a vent valve, and the side wall of the second chamber is provided with an observation window.
10. The fuel urea tank module as set forth in claim 1, wherein an inward concave groove cavity is formed at the side of the top wall of the tank body corresponding to the first chamber, a filter support for fixing a filter is formed at the groove wall of the groove cavity, and a urea pump support for fixing a urea pump is formed at the end face of the tank body corresponding to the second chamber.

Description

Fuel urea tank module Technical Field The invention relates to the technical field of vehicle devices, in particular to a fuel urea box module. Background The vehicle with urea is mainly used for a vehicle with a diesel engine, and as the diesel engine discharges harmful gas oxynitride to form environmental pollution, the human body sucks the waste gas for a long time, and the damage to the human body is larger. To reduce this damage, vehicles employing diesel engines are supplied with urea, which has a catalytic function and, when exposed to nitrogen oxides, undergoes chemical reactions which convert the nitrogen oxides into nitrogen and water and then out. At present, the application is mature into an SCR scheme, urea is extracted and tail gas is treated through a urea pump and the like, urea is frozen in seasons or regions with low temperature, the urea pump and the like cannot be used for extracting, an electric heating thawing scheme is adopted for the urea pump, electric heating is realized by adopting a resistance wire heating mode, an electric heater is fixed at an end cover and is inserted into a urea box, and the defect of slow thawing is overcome and needs to be improved. Disclosure of Invention In order to solve at least one technical defect, the invention provides the following technical scheme: The application discloses a fuel urea tank module, which comprises a tank body, wherein the interior of the tank body is partitioned into a first chamber and a second chamber which are independent, the first chamber is used for containing fuel, the second chamber is used for containing urea, a converging mechanism is arranged in the second chamber, the converging mechanism comprises a shell, heat conducting fins, heating resistance wires, heat conducting strips and a liquid pumping pipe, the interior of the shell is provided with a third sealing chamber, the heating resistance wires are arranged in the wall of the third chamber, the third chamber comprises a transverse end and a longitudinal end, the transverse end is inclined and is communicated with the longitudinal end, the heat conducting strips are arranged in the chamber of the longitudinal end, the end parts of the heat conducting strips are connected with the chamber wall of the longitudinal end, one end of the liquid pumping pipe is positioned in the chamber of the longitudinal end, the other end of the liquid pumping pipe is positioned outside the shell, the peripheral wall corresponding to the transverse end of the third chamber is provided with the heat conducting fins, and the peripheral wall of the third chamber is provided with a plurality of through holes communicated with the second chamber. According to the scheme, the structure is improved, the converging mechanism is added in the chamber II containing urea, the chamber III is formed in the shell, the heating resistance wire is arranged in the chamber wall, the chamber III is communicated with the outside through the through hole, urea in the chamber III is thawed through heating of the heating resistance wire, the urea in the chamber II is thawed in the gradual heating process, the structure of the chamber III is improved, the longitudinal ends of the transverse ends are formed, the transverse ends are inclined, the longitudinal ends converge, the liquid suction pipe stretches into the longitudinal ends, quick thawing is achieved at the initial heating stage due to the existence of the heat conduction strip and the like, thawing liquid in the cavity of the transverse ends continuously flows into the longitudinal ends to achieve converging, and thawing liquid on the periphery of the shell flows into the chamber from the through hole and is converged to the longitudinal ends under the heat transfer of the heat conduction fin. Further, the bottom wall department shaping recess of cavity two, the vertical end of cavity three is in the recess and has the space between its perisporium and the cell wall of recess, and the arrangement of vertical end is convenient for to the structure of shaping recess, makes things convenient for the conflux of thawing solution. Further, the bottom wall of the groove is provided with a urea liquid outlet and an end cover for sealing, so that liquid is conveniently discharged. Further, the second chamber is provided with a mounting hole formed in the bottom wall of the box body and a sealing cover fixed in the mounting hole, the sealing cover is provided with a groove formed in the sealing cover, and the split structure facilitates the installation of the second chamber inner converging mechanism. Further, the heat conduction fin comprises a sheet body and protruding ribs, the sheet body is arranged around the upper portion of the chamber corresponding to the peripheral wall at intervals, protruding ribs are arranged on the front face and the back face of the sheet body along the length direction at intervals, part of through holes are arranged between the t