CN219529117U - Urea tank heating system - Google Patents
Urea tank heating system Download PDFInfo
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- CN219529117U CN219529117U CN202320409109.5U CN202320409109U CN219529117U CN 219529117 U CN219529117 U CN 219529117U CN 202320409109 U CN202320409109 U CN 202320409109U CN 219529117 U CN219529117 U CN 219529117U
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- heating
- quality sensor
- urea tank
- urea
- cooling water
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Exhaust Gas After Treatment (AREA)
Abstract
The utility model relates to the technical field of vehicle aftertreatment systems, in particular to a urea tank heating system. The urea tank heating system comprises a cooling water heating module and an electric heating module, wherein the cooling water heating module comprises heating pipes distributed in the tank body of the urea tank, and external cooling water circularly flows through the heating pipes to heat urea solution in the tank body. The electric heating module is arranged adjacent to the quality sensor in the tank body and wrapped in the cover body, and can be closed after the temperature of cooling water in the heating pipe reaches a set value. The urea solution in the urea tank is heated together in a cooling water heating mode and an electric heating mode, so that the frozen urea solution can be heated and thawed quickly, and the heating efficiency of the urea tank is improved. Meanwhile, the electric heating module can rapidly heat and defrost the quality sensor, so that the urea solution and the quality sensor can be rapidly and synchronously defrosted, and the quality sensor can monitor the quality of the urea solution at the initial stage of starting the SCR system.
Description
Technical Field
The utility model relates to the technical field of vehicle aftertreatment systems, in particular to a urea tank heating system.
Background
The urea tank system is a part of a vehicle aftertreatment system, urea solution in the urea tank is quantitatively injected into a aftertreatment device through a urea pump during operation and reacts with nitrogen oxides (NOx) in tail gas, and under the action of a catalyst, the NOx is reduced into harmless nitrogen and water, so that the emission of the NOx is reduced. Under the low-temperature environment, particularly when the ambient temperature is lower than-11 ℃, urea solution can freeze and cause the pipeline to be blocked, and the urea nozzle cannot normally spray, so that the exhaust emission of an engine is affected.
In the prior art, a heating pipe is typically laid in a urea tank, and cooling water of an engine is circulated into the heating pipe to heat and defrost frozen urea solution. Because the engine needs a certain time to preheat after starting, the urea solution can not be quickly thawed in a short time, so that the SCR system can not quickly start to work after the automobile is started. Meanwhile, the urea solution is required to be further heated for thawing the quality sensor after being thawed, so that the starting time of the quality sensor is prolonged, namely the quality sensor cannot be normally started in the initial stage of starting the SCR system, so that the quality of the urea solution cannot be monitored normally, the reliable operation of the SCR system is influenced, and the purification effect of tail gas discharged by an engine is difficult to ensure.
Therefore, there is a need for a urea tank heating system that addresses the above-described issues.
Disclosure of Invention
The utility model aims to provide a urea tank heating system which is used for improving the heating efficiency of a urea solution and a quality sensor in a urea tank at the same time and realizing the rapid synchronous thawing of the urea solution and the quality sensor.
The technical scheme adopted by the utility model is as follows:
the utility model provides a urea tank heating system, includes cooling water heating module, cooling water heating module is including distributing in the internal heating pipe of jar of urea tank, and outside cooling water circulation flows the heating pipe is in order to heat the internal urea solution of jar, urea tank heating system still includes electric heating module, electric heating module with the internal quality sensor of jar sets up adjacently and wraps up in the cover body, electric heating module can be in after the cooling water temperature in the heating pipe reaches the setting value.
Preferably, the electric heating module comprises a fixed shell and a heating element, wherein the heating element is arranged adjacent to the quality sensor and is fixed in an inner cavity of the fixed shell; the fixed shell is provided with an avoidance hole, the cover body is provided with a diversion hole, and the diversion hole is sequentially communicated with the detection groove of the quality sensor.
Preferably, the heating element and the quality sensor are both fixed in the inner cavity of the fixed shell in an interference manner.
Preferably, the inner cavity of the fixed shell comprises a heating cavity and a sensor cavity which are communicated, the heating element is fixedly arranged in the heating cavity, and the quality sensor is fixedly arranged in the sensor cavity.
Preferably, the number of the heating cavities is two, and the two heating cavities are respectively positioned at two opposite sides of the sensor cavity.
Preferably, the heating cavities are at least three, the heating pieces are fixedly arranged in the three heating cavities, and the heating pieces are distributed along the circumference of the quality sensor and hug the quality sensor.
As the preferred scheme, the fixed shell includes main casing and otic placode, the inner chamber internal fixation of main casing have adjacent setting the heating piece with the quality sensor, outwards extend on the main casing and be provided with the otic placode, the through-hole has been seted up to the correspondence on the cover body, the otic placode pass the through-hole and can with the jar internal fixation the link of heating pipe links to each other.
Preferably, the heating element is a PTC heater.
Preferably, the electric heating module comprises a fixed shell and a heating piece, and the heating piece is arranged on the fixed shell; the quality sensor is arranged in the fixed shell in a penetrating way; the fixed shell is provided with an avoidance hole, the cover body is provided with a diversion hole, and the diversion hole is sequentially communicated with the detection groove of the quality sensor.
Preferably, the electric heating module is a resistance heater, and the heating element is a resistance sheet or a resistance wire.
The beneficial effects of the utility model are as follows:
the urea tank heating system comprises the cooling water heating module and the electric heating module, and when the vehicle is started at low temperature, the urea solution in the urea tank is heated together by the cooling water heating mode and the electric heating mode, so that the frozen urea solution can be quickly heated and thawed, the heating efficiency of the urea tank is improved, the SCR system can be enabled to work quickly at the low-temperature starting stage of the vehicle, and the emission of harmful gases in the tail gas of the vehicle is reduced. Meanwhile, the electric heating module is arranged adjacent to the quality sensor, so that the electric heating module can rapidly heat and defrost the quality sensor, rapid synchronous thawing of the urea solution and the quality sensor is realized, and the quality sensor can monitor the quality of the urea solution in real time at the initial stage of starting the SCR system to operate, so that the SCR system can be ensured to operate reliably. In addition, after the temperature of the cooling water in the heating pipe reaches a set value, the electric heating module can be turned off, so that the energy conservation and consumption reduction of the urea tank heating system are realized.
Drawings
Fig. 1 is a schematic structural diagram of a cooling water heating module and an electric heating module according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of an electrical heating module according to an embodiment of the present utility model;
FIG. 3 is an exploded view of an electric heating module according to an embodiment of the present utility model;
fig. 4 is a schematic structural diagram of an electric heating module according to a second embodiment of the present utility model;
fig. 5 is a schematic exploded view of an electric heating module according to a second embodiment of the present utility model;
fig. 6 is a schematic structural view of an electric heating module according to a third embodiment of the present utility model;
fig. 7 is a schematic exploded view of an electric heating module according to a third embodiment of the present utility model;
fig. 8 is a schematic structural view of an electric heating module according to a fourth embodiment of the present utility model;
fig. 9 is a schematic exploded view of an electric heating module according to a fourth embodiment of the present utility model.
The parts in the figures are named and numbered as follows:
10. heating pipes; 20. a quality sensor; 201. a sensor lead outlet; 202. a detection groove; 30. a cover body; 301. a deflector aperture; 302. a through hole; 40. a urea sensor; 50. a connecting frame;
1. an electric heating module; 11. a fixed case; 111. a main housing; 112. ear plates; 110. an inner cavity; 1101. a heating cavity; 1102. a sensor cavity; 113. avoidance holes; 12. a heating member; 121. and a heating element lead outlet.
Detailed Description
In order to make the technical problems solved, the technical scheme adopted and the technical effects achieved by the utility model more clear, the technical scheme of the utility model is further described below by a specific embodiment in combination with the attached drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the drawings related to the present utility model are shown.
In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.
Example 1
As shown in fig. 1, the urea tank system is a part of a vehicle aftertreatment system, a urea sensor 40 is installed at the top of the urea tank, a heating pipe 10 is laid in the tank body, and cooling water of an engine circularly flows into the heating pipe 10 to heat and defrost frozen urea solution in the urea tank. The heating pipes 10 are coiled in the urea tank, and adjacent heating pipes 10 are connected through a connecting frame 50. In addition, the quality sensor 20 in the tank is mounted on the connection frame 50 to monitor the quality of the urea solution in real time.
At present, when a vehicle engine needs a certain time to preheat after being started, the urea solution cannot be quickly thawed in a short time, so that an SCR system of the vehicle cannot quickly start to work after the automobile is started. Meanwhile, after the urea solution is thawed, the quality sensor 20 is further heated and thawed, so that the starting time of the quality sensor 20 is prolonged, namely, the quality sensor 20 cannot be normally started in the initial stage of starting the operation of the SCR system, so that the quality of the urea solution cannot be normally monitored, the reliable operation of the SCR system is influenced, and the purification effect of tail gas discharged by an engine is difficult to ensure.
In order to solve the above-mentioned problems, as shown in fig. 2 and 3, the present embodiment provides a urea tank heating system, which includes a cooling water heating module, the cooling water heating module includes heating pipes 10 distributed in a tank body of a urea tank, external cooling water circulates through the heating pipes 10 to heat urea solution in the tank body, the urea tank heating system further includes an electric heating module 1, the electric heating module 1 is disposed adjacent to a quality sensor 20 in the tank body and wrapped in a cover 30, and the electric heating module 1 can be turned off after the cooling water temperature in the heating pipes 10 reaches a set value. The cover 30 may be a rubber cover, a plastic cover, a metal cover, or the like, and is not particularly limited herein. Of course, in other embodiments, the urea tank heating system may also remove the enclosure 30.
When the vehicle is started at low temperature, the urea solution in the urea tank is heated together by the cooling water heating mode and the electric heating mode, so that the frozen urea solution can be heated and thawed quickly, the heating efficiency of the urea tank is improved, the SCR system can work quickly at the low-temperature starting stage of the vehicle, and the emission of harmful gases in the tail gas of the vehicle is reduced. Meanwhile, the electric heating module 1 and the quality sensor 20 are adjacently arranged, so that the electric heating module 1 can rapidly heat and defrost the quality sensor 20, rapid synchronous thawing of urea solution and the quality sensor 20 is realized, and the quality sensor 20 can monitor the quality of the urea solution in real time at the initial stage of starting the SCR system to operate, so that the SCR system can be ensured to operate reliably.
In addition, after the temperature of the cooling water in the heating pipe 10 reaches a set value, the electric heating module 1 can be turned off, so that the energy saving and consumption reduction of the urea tank heating system are realized. Under the low-temperature environment, the temperature of the cooling water can reach the normal water temperature usually about half an hour when the vehicle is started, the temperature value at the moment is the set value, then the electric heating module 1 is powered off and closed, and the urea tank is continuously heated only through the cooling water heating module.
As shown in fig. 2 and 3, the electric heating module 1 includes a fixing case 11 and a heating member 12, and the heating member 12 is disposed adjacent to the quality sensor 20 and fixed in an inner cavity 110 of the fixing case 11. When the heating element 12 is electrified, the frozen urea solution around the quality sensor 20 can be heated simultaneously, so that the quality sensor 20 and the urea solution are thawed simultaneously. The heating element 12 of the embodiment is a PTC heater, and has a good heating effect and is convenient to install. The heating member 12 has a heating member lead outlet 121 and leads the lead to the outside of the urea tank through the heating member lead outlet 121 and communicates the lead with an external power source to supply electric power to the heating member 12.
In addition, the quality sensor 20 has a sensor lead outlet 201 and a detection groove 202, and leads of the quality sensor 20 extend to the outside of the urea tank through the sensor lead outlet 201 to communicate with an external power source and a control module, respectively, through which electric power can be supplied to the quality sensor 20 while the quality sensor 20 transmits detection data to the control module of the vehicle aftertreatment system through the leads. Because the control module of the vehicle aftertreatment system is prior art, it is not described in detail herein.
As shown in fig. 2 and 3, the heater lead outlet 121 extends in the front-rear direction, and the sensor lead outlet 201 extends in the up-down direction such that the axial direction of the heater lead outlet 121 is perpendicular to the axial direction of the sensor lead outlet 201.
Further, the fixing shell 11 is provided with the avoiding hole 113, the cover body 30 is provided with the guiding hole 301, the guiding hole 301 and the avoiding hole 113 are sequentially communicated with the detecting groove 202 of the quality sensor 20, so that the thawed urea solution can flow into the detecting groove 202 after sequentially passing through the guiding hole 301 and the avoiding hole 113, and the quality sensor 20 can monitor the quality of the urea solution in real time.
The cover 30 of the present embodiment has substantially the same structure as the fixing case 11, and can achieve a socket fit. Four diversion holes 301 are respectively formed in the middle areas of the top and the bottom of the cover body 30, and an avoidance hole 113 is correspondingly formed in the middle areas of the top and the bottom of the fixed shell 11. Of course, the number and the size of the diversion holes 301 and the avoidance holes 113 can be flexibly adjusted according to actual requirements, which are not particularly limited herein.
As shown in fig. 2 and 3, the inner cavity 110 of the fixed housing 11 includes a heating cavity 1101 and a sensor cavity 1102 which are communicated, a heating element 12 is fixedly installed in the heating cavity 1101, and a quality sensor 20 is fixedly installed in the sensor cavity 1102.
Specifically, the heating element 12 has two heating chambers 1101, and the two heating chambers 1101 are located on opposite sides of the sensor chamber 1102. The two heating chambers 1101 of the present embodiment are located at the left and right sides of the sensor chamber 1102, that is, by disposing the two heating members 12 at the left and right sides of the quality sensor 20, the quality sensor 20 is uniformly heated, and the heating and thawing efficiency of the quality sensor 20 is improved.
Specifically, the heating element 12 and the quality sensor 20 are both fixed in the inner cavity 110 of the fixing housing 11 in an interference manner. The inner wall of the heating cavity 1101 is matched with the outer peripheral outline of the heating element 12, and the inner wall of the sensor cavity 1102 is matched with the outer peripheral outline of the quality sensor 20, so that the heating element 12 and the quality sensor 20 are in interference insertion connection and installation in the inner cavity 110 of the fixed shell 11, fasteners such as bolts are not needed, and the dismounting efficiency of the heating element 12 and the quality sensor 20 is improved.
Example two
The present embodiment proposes a urea tank heating system, which is substantially the same as the urea tank heating system of the first embodiment, and has the main difference that: the specific structure of the fixing case 11 is different.
As shown in fig. 4 and 5, the fixing case 11 includes a main case 111 and an ear plate 112, and a heating element 12 and a quality sensor 20 that are disposed adjacently are fixed in an inner cavity 110 of the main case 111. The main casing 111 is provided with an ear plate 112 extending outwards, the cover 30 is correspondingly provided with a through hole 302, and the ear plate 112 passes through the through hole 302 and can be connected with the connecting frame 50 for fixing the heating pipe 10 in the tank body.
Specifically, the ear plate 112 is provided with a mounting hole, and a fastener such as a bolt can pass through the mounting hole and then be fixedly connected with the connecting frame 50, so as to lock the fixing shell 11 on the connecting frame 50, thereby preventing the quality sensor 20 from shaking.
Further, through holes 302 are formed on both sides of the cover 30 in the up-down direction, so that the fixing shell 11 can be mounted in the forward and reverse directions (the ear plate 112 is inserted from the through hole 302 above to be defined as being mounted in the forward direction, and the ear plate 112 is inserted from the through hole 302 below to be mounted in the reverse direction), thereby improving the convenience of mounting the fixing shell 11 and the cover 30.
As shown in fig. 5, the cover 30 has substantially the same structure as the fixing case 11, and can be fitted in a socket manner. Four diversion holes 301 are formed in the middle areas of the top and the bottom of the cover body 30, four avoidance holes 113 are correspondingly formed in the middle areas of the top and the bottom of the fixed shell 11, and each avoidance hole 113 is communicated with the corresponding diversion hole 301. Of course, the number and the size of the diversion holes 301 and the avoidance holes 113 can be flexibly adjusted according to actual requirements, which are not particularly limited herein.
The inner cavity 110 of the main body shell of the embodiment is also provided with two heating cavities 1101, and the two heating cavities 1101 are respectively positioned at the left side and the right side of the sensor cavity 1102, and by respectively arranging the two heating elements 12 at the left side and the right side of the quality sensor 20, the uniform heating of the quality sensor 20 is realized, and the heating and thawing efficiency of the quality sensor 20 is improved.
The heater lead outlet 121 and the sensor lead outlet 201 extend in the front-rear direction such that the axial direction of the heater lead outlet 121 is parallel to the axial direction of the sensor lead outlet 201.
Example III
The present embodiment proposes a urea tank heating system, which is substantially the same as the urea tank heating system of the first embodiment, and has the main difference that: the specific structure of the fixing case 11, the number of the heating members 12, and the installation positions are different.
The heating cavity 1101 of the present embodiment has at least three heating cavities 1101, each heating cavity 1101 is fixedly provided with a heating element 12, and a plurality of heating elements 12 are distributed along the circumference of the quality sensor 20 and hug the quality sensor 20. By arranging three or more heating elements 12 adjacently around the quality sensor 20 in the circumferential direction of the quality sensor 20, the uniform heating effect of the quality sensor 20 is enhanced, and the defrosting efficiency of the quality sensor 20 is further improved.
For ease of understanding, the present embodiment will be described by taking the example in which the electric heating module 1 has four heating elements 12. As shown in fig. 6 and 7, the fixing housing 11 is a cross-shaped housing, the inner cavity 110 includes four heating cavities 1101 that are mutually communicated, the four heating cavities 1101 enclose a cross-shaped cavity, and a central area of the cross-shaped cavity is a sensor cavity 1102. The inner wall of the heating cavity 1101 is matched with the peripheral outline of the heating element 12, so that the heating element 12 is in interference insertion installation in a corresponding cavity, fasteners such as bolts are not needed, and the dismounting efficiency of the heating element 12 and the quality sensor 20 is improved. Meanwhile, the four heating elements 12 can tightly hold the quality sensor 20 positioned at the center position in the cross-shaped shell, so that stable installation of the quality sensor 20 is realized. By arranging four heating elements 12 around the quality sensor 20, respectively, uniform heating of the quality sensor 20 is achieved.
As shown in fig. 7, the cover 30 has the same structure as the fixing case 11, and can be fitted in a socket manner. Two avoidance holes 113 are formed in two side walls of the two heating cavities 1101 on the left and right sides of the quality sensor 20 along the left and right directions. The corresponding position of the cover body 30 is provided with a diversion hole 301, and each avoidance hole 113 is communicated with the corresponding diversion hole 301. Of course, the number and the size of the diversion holes 301 and the avoidance holes 113 can be flexibly adjusted according to actual requirements, which are not particularly limited herein.
The heater lead outlet 121 and the sensor lead outlet 201 extend in the front-rear direction such that the axial direction of the heater lead outlet 121 is parallel to the axial direction of the sensor lead outlet 201.
Example IV
The present embodiment proposes a urea tank heating system, which is substantially the same as the urea tank heating system of the first embodiment, and has the main difference that: the electric heating module 1 is different. The electric heating module 1 of the present embodiment is a resistance heater, and the heating element 12 is a resistance sheet or a resistance wire.
As shown in fig. 8 and 9, the electric heating module 1 includes a fixed housing 11 and a heating member 12, the heating member 12 being provided on the fixed housing 11. The fixing shell 11 is made of insulating material, and can be plastic or silica gel or other materials with insulating properties. The quality sensor 20 is disposed in the fixed housing 11. The fixed shell 11 is provided with an avoidance hole 113, the cover body 30 is provided with a diversion hole 301, and the diversion hole 301 and the avoidance hole 113 are sequentially communicated with the detection groove 202 of the quality sensor 20.
Specifically, the fixing case 11 and the resistor sheet or the resistor wire are assembled together to form the resistor heater, the fixing case 11 is of a cylindrical structure, and the resistor sheet or the resistor wire is distributed on the outer peripheral surface of the fixing case 11. The quality sensor 20 is disposed through the inner cavity 110 of the fixed housing 11, so as to uniformly heat the quality sensor 20 and improve the thawing efficiency of the quality sensor 20.
As shown in fig. 7, the cover 30 has substantially the same structure as the fixing case 11, is cylindrical, and can be fitted in a socket manner. Four avoidance holes 113 are formed in the fixing shell 11, the two avoidance holes 113 are arranged at intervals in the front-rear direction to form hole groups, and the two hole groups are distributed at intervals in the circumferential direction of the fixing shell 11. The same number of diversion holes 301 are formed in the corresponding positions of the cover body 30, and each avoidance hole 113 is communicated with the corresponding diversion hole 301. Of course, the number and the size of the diversion holes 301 and the avoidance holes 113 can be flexibly adjusted according to actual requirements, which are not particularly limited herein.
The heater lead outlet 121 and the sensor lead outlet 201 extend in the front-rear direction such that the axial direction of the heater lead outlet 121 is parallel to the axial direction of the sensor lead outlet 201.
The above embodiments merely illustrate the basic principle and features of the present utility model, and the present utility model is not limited to the above embodiments, but may be varied and altered without departing from the spirit and scope of the present utility model. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a urea tank heating system, includes cooling water heating module, cooling water heating module is including distributing in the internal heating pipe (10) of jar of urea tank, and outside cooling water circulation flows heating pipe (10), so as to heat the internal urea solution of jar, a serial communication port, urea tank heating system still includes electric heating module (1), electric heating module (1) with the internal quality sensor (20) of jar set up adjacently and wrap up in cover body (30), electric heating module (1) can be in cooling water temperature in heating pipe (10) reaches the setting value back and closes.
2. Urea tank heating system according to claim 1, characterized in that the electric heating module (1) comprises a fixed housing (11) and a heating element (12), the heating element (12) being arranged adjacent to the quality sensor (20) and being fixed within an inner cavity (110) of the fixed housing (11); the device is characterized in that an avoidance hole (113) is formed in the fixed shell (11), a diversion hole (301) is formed in the cover body (30), and the diversion hole (301) and the avoidance hole (113) are sequentially communicated with a detection groove (202) of the quality sensor (20).
3. Urea tank heating system according to claim 2, characterized in that the heating element (12) and the quality sensor (20) are both fixed in interference within the inner cavity (110) of the stationary housing (11).
4. Urea tank heating system according to claim 2, characterized in that the inner cavity (110) of the stationary housing (11) comprises a heating cavity (1101) and a sensor cavity (1102) which are in communication, the heating element (12) being fixedly mounted in the heating cavity (1101), the quality sensor (20) being fixedly mounted in the sensor cavity (1102).
5. Urea tank heating system according to claim 4, characterized in that the heating chambers (1101) have two and that the two heating chambers (1101) are located on opposite sides of the sensor chamber (1102), respectively.
6. Urea tank heating system according to claim 4, characterized in that the heating chamber (1101) has at least three, that the heating elements (12) are fixedly mounted in each of the three heating chambers (1101), and that a plurality of the heating elements (12) are distributed along the circumference of the quality sensor (20) and hug the quality sensor (20).
7. Urea tank heating system according to claim 2, characterized in that the fixing casing (11) comprises a main casing (111) and an ear plate (112), the heating element (12) and the quality sensor (20) which are adjacently arranged are fixed in the inner cavity (110) of the main casing (111), the ear plate (112) is outwardly extended on the main casing (111), the cover body (30) is correspondingly provided with a through hole (302), and the ear plate (112) passes through the through hole (302) and can be connected with the connecting frame (50) of the heating tube (10) fixed in the tank body.
8. Urea tank heating system according to any of claims 2-7, characterized in that the heating element (12) is a PTC heater.
9. Urea tank heating system according to claim 1, characterized in that the electric heating module (1) comprises a fixed shell (11) and a heating element (12), the heating element (12) being arranged on the fixed shell (11); the quality sensor (20) is arranged in the fixed shell (11) in a penetrating way; the device is characterized in that an avoidance hole (113) is formed in the fixed shell (11), a diversion hole (301) is formed in the cover body (30), and the diversion hole (301) and the avoidance hole (113) are sequentially communicated with a detection groove (202) of the quality sensor (20).
10. Urea tank heating system according to claim 9, characterized in that the electric heating module (1) is a resistive heater and the heating element (12) is a resistive sheet or wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320409109.5U CN219529117U (en) | 2023-03-07 | 2023-03-07 | Urea tank heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320409109.5U CN219529117U (en) | 2023-03-07 | 2023-03-07 | Urea tank heating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219529117U true CN219529117U (en) | 2023-08-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320409109.5U Active CN219529117U (en) | 2023-03-07 | 2023-03-07 | Urea tank heating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219529117U (en) |
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2023
- 2023-03-07 CN CN202320409109.5U patent/CN219529117U/en active Active
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