CN211900740U

CN211900740U - Electric heating type DPF regeneration system for parking

Info

Publication number: CN211900740U
Application number: CN202020564509.XU
Authority: CN
Inventors: 冯玉杰; 牛雨飞; 杨帅; 徐美良; 孙治书
Original assignee: Hebei Yili Group Co ltd; Wuxi Yili Environmental Protection Technology Co Ltd
Current assignee: Wuxi Yili Environmental Protection Technology Co Ltd; Hebei Yili Technology Co Ltd
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2020-11-10
Anticipated expiration: 2030-04-16

Abstract

The utility model discloses a parking electrical heating type DPF regeneration system, wherein a heating cavity and a temperature sensor are arranged on the air inlet side of a DPF assembly of a DPF treatment device, a heating wire is arranged in the heating cavity, and the temperature sensor and the heating wire are connected with a controller; the heating cavity is connected with an air pump through a pipeline, and the air pump is provided with a pressure sensor; the air pump and the pressure sensor are connected with the controller; the controller is connected with the storage battery and the display, and the display is provided with a warning lamp for feeding back the condition of the DPF treatment device; the controller is provided with a power socket. The utility model discloses one side that the DPF subassembly was admitted air sets up the heating chamber, and the air reentries the DPF subassembly in the heating intracavity after the heater strip heating for heat in the DPF subassembly, temperature distribution are more even, more are favorable to the regeneration of DPF subassembly, and the DPF subassembly can not directly bear the huge heat that comes from the heater strip moreover, has just so avoided appearing the local high temperature in the DPF subassembly and the condition burnt out.

Description

Electric heating type DPF regeneration system for parking

Technical Field

The utility model belongs to the technical field of the DPF regeneration technique and specifically relates to a parking electrical heating formula regeneration DPF system.

Background

A diesel particulate trap (DPF) is a filter installed in an exhaust system of a diesel engine for trapping particles in exhaust gas discharged from the engine before entering the atmosphere, reducing the emission of Particulate Matter (PM) of the diesel engine; particulate matters filtered by DFP are deposited in the DPF, and the particulate matters deposited in the DPF are more and more accumulated along with the increase of the working time, so that the resistance of the DPF to the airflow is increased (namely the backpressure of the DPF is increased), and the fuel property and the dynamic property of an engine are further influenced, therefore, the DPF needs to be periodically regenerated passively or actively to remove the particulate matters in the DPF.

The Chinese patent application 201810390901.4 discloses an independent electric heating type DPF regeneration system, which comprises a main body and an air filter, wherein the left end of the main body is provided with an exhaust pipe, the exhaust pipe is tightly connected with the main body, one end of the exhaust pipe is provided with an engine, the engine is fixedly connected with the exhaust pipe, the right side surface of the engine is provided with an oil pump, and the oil pump is tightly connected with the engine. Such an electrically heated DPF regeneration system has the following problems: (1) the heater of the DPF regeneration system directly heats the DPF main body, and each element in the DPF main body directly bears huge heat from the heater, so that the condition that the DPF element is burnt out due to overhigh local temperature is easy to occur; in addition, during the process of directly heating the DPF by the heater each time, due to the huge heat of the heater, the DPF can generate sudden temperature change in a short time, and the sudden temperature change easily causes the aging of the DPF element and reduces the service life. (2) The main body devices such as the main body, the control box and the air pump of the DPF regeneration system are arranged in a close fit manner, the whole system is large in size, the requirement on the installation space of the whole vehicle is high, the spaces of other parts on the whole vehicle cannot be flexibly and effectively utilized, and the installation limitation is large.

SUMMERY OF THE UTILITY MODEL

The present applicant has provided a parking electrically-heated DPF system having a reasonable structure, in which air is heated in a heating chamber and then enters a DPF unit, so that the DPF unit is not easily burned out or aged, and the installation restriction is small, in order to overcome the disadvantages that the DPF unit is easily burned out or aged, and the installation restriction is large, etc. in the conventional electrically-heated DPF regeneration system.

The utility model discloses the technical scheme who adopts as follows:

a parking electric heating type DPF regeneration system comprises a DPF treatment device and a controller, wherein a heating cavity and a temperature sensor are arranged on the air inlet side of a DPF assembly of the DPF treatment device, a heating wire is arranged in the heating cavity, and the temperature sensor and the heating wire are connected with the controller; the heating cavity is connected with an air pump through a pipeline, the air pump is provided with a pressure sensor, and the pressure sensor monitors the back pressure of the DPF treatment device through the pipeline; the air pump and the pressure sensor are connected with the controller; the controller is connected with the storage battery and the display, and the display is provided with a warning lamp for feeding back the condition of the DPF treatment device; the controller is provided with a power socket which is connected with an external power supply through the power socket.

The utility model discloses set up the heating chamber in the side that DPF subassembly admits air, the air reentries DPF subassembly in heating intracavity after the heater strip heating, makes heat, the temperature distribution in the DPF subassembly more even, more is favorable to DPF subassembly's regeneration, and DPF subassembly can not bear the huge heat that comes from the heater strip directly, has avoided appearing in the DPF subassembly local high temperature and has burnt out the condition like this; in addition, the air entering the DPF assembly is the air which is continuously heated, the heat change of the hot air is not large, the DPF assembly cannot generate large temperature mutation in a short time, the risk of ageing of the DPF assembly is reduced, and the service life is prolonged. The controller carries out regeneration during operation at the DPF subassembly, can last real-time detection through temperature sensor and heat the temperature of intracavity, if the high temperature, the heater strip power supply will be given in the pause to the controller, gives the heater strip power supply again after the temperature is less than the settlement temperature, ensures the safety of regeneration in-process DPF subassembly, avoids burning out the DPF subassembly because the high temperature.

As a further improvement of the above technical solution:

the air pump provides air to the DPF treatment device.

The utility model discloses only need heat to provide the air in the DPF processing apparatus through the air pump, can be in order to regenerate, lower to the requirement of air supply, the air is with low costs moreover, has higher economic suitability. The utility model discloses a carrier suitable for arbitrary automobile-used DPF material.

The DPF treatment device, the air pump and the controller are independently arranged and connected through a wiring harness or a pipeline.

The utility model discloses a main part devices such as DPF processing apparatus, air pump, controller pass through pencil or tube coupling, have reduced the installation space requirement to whole car, can utilize the space at each position on whole car in a flexible way, rationally, and installation restriction is less.

The warning lamp comprises a green warning lamp, a yellow warning lamp and a red warning lamp.

The display is located in the cab.

The DPF treatment device is sequentially connected with an air inlet end, a heating cavity, a DPF assembly and an air outlet end in series, and the air inlet end is connected to an air pump through a pipeline.

The utility model has the advantages as follows:

Drawings

Fig. 1 is a schematic view of the present invention.

In the figure: 1. a DPF treatment device; 11. an air inlet end; 12. a heating cavity; 13. a DPF assembly; 14. an air outlet end; 2. an air pump; 3. a pressure sensor; 4. a storage battery; 5. a display; 51. a green warning light; 52. a yellow warning light; 53. a red warning light; 6. a controller; 7. a power source; 8. a temperature sensor; 9. heating wires; 10. a pipeline.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

As shown in fig. 1, the DPF treatment apparatus 1 of the present invention is sequentially and serially disposed with an air inlet 11, a heating chamber 12, a DPF assembly 13, and an air outlet 14; the air inlet end 11 is connected to the air pump 2 through a pipeline 10, the air pump 2 is provided with a pressure sensor 3, the pressure sensor 3 is communicated with the DPF treatment device 1 through the pipeline 10 and monitors a backpressure value in the DPF treatment device 1 in real time, the air pump 2 and the pressure sensor 3 are electrically connected to the controller 6 through a wiring harness, and the controller 6 controls the start and stop of the air pump 2 to realize air supply or stop air supply for the heating cavity 12; the air inlet end 11 is provided with a temperature sensor 8 for monitoring the temperature of the heating cavity 12 in real time, the heating cavity 12 is internally provided with a heating wire 9 for heating the air in the heating cavity 12, the temperature sensor 8 and the heating wire 9 are electrically connected to the controller 6 through a wire harness, and the controller 6 controls the on-off of the heating wire 9 to heat the air in the heating cavity 12 or stop heating; the display 5 in the cab is electrically connected to the controller 6 through a wire harness, a green warning lamp 51, a yellow warning lamp 52 and a red warning lamp 53 are arranged on the display 5, and the controller 6 feeds back the status of the DPF treatment device 1 in real time through each warning lamp according to the backpressure information monitored by the pressure sensor 3: (1) when the green warning lamp 51 is normally on and the yellow warning lamp 52 and the red warning lamp 53 are normally closed, the back pressure of the DPF treatment apparatus 1 is within a normal working range, that is, the deposition amount of particulate matter is within a normal range; (2) when the red warning lamp 53 is turned on, the green warning lamp 51 is turned off, and the yellow warning lamp 52 is normally closed, the back pressure of the DPF treatment device 1 is about to reach a specified upper limit, namely the deposition amount of particulate matters is about to reach the upper limit, so that a driver is reminded of needing to go to a service station to perform parking electric heating regeneration on the DPF treatment device 1 as soon as possible; (3) when the red warning lamp 53 is turned on, the yellow warning lamp 52 is turned on in a flashing manner, and the green warning lamp 51 is normally closed, the back pressure of the DPF treatment device 1 reaches or exceeds the upper limit value, that is, the deposition amount of particulate matter reaches or exceeds the upper limit value, so that a driver is reminded of immediately performing parking electric heating regeneration on the DPF treatment device 1. The controller 6 is electrically connected to the vehicle-mounted storage battery 4 through a wire harness, electricity required for the operation of the storage battery 4 is supplied by the storage battery 4, and the controller 6 is further provided with a power socket connected with an external power supply 7. The utility model discloses a main part devices such as DPF processing apparatus 1, air pump 2, controller 6 independently set up, through pencil or tube coupling, have reduced the installation space requirement to whole car, can utilize the space at each position on whole car in a flexible way, rationally, and installation restriction is less.

The utility model discloses a concrete theory of operation does: in the normal driving process of the automobile, the controller 6 feeds back the state of the DPF treatment device 1 in real time through the warning lamp of the display 5 according to the monitoring information of the pressure sensor 3, and a driver can timely perform parking electric heating regeneration on the DPF treatment device 1 according to the display condition of the warning lamp. When the automobile is parked and regenerated in a service station, firstly, the engine is ensured to be closed, then the controller 6 is communicated with the external power supply 7, at the moment, the red warning lamp 53 on the display 5 is normally on, the yellow warning lamp 52 is normally closed, the green warning lamp 51 flickers and lights, and then the system starts to regenerate; after the external power supply 7 is connected, the controller 6 controls the heating wire 9 in the heating cavity 12 to be electrified and heated, the temperature sensor 8 monitors the temperature in the heating cavity 12 in real time, when the temperature in the heating cavity 12 reaches a set regeneration temperature, the controller 6 controls the air pump 2 to start working, the air pump 2 delivers air into the heating cavity 12 through the pipeline 10, the air is heated by the heating wire 9 in the heating cavity 12 and then flows into the DPF assembly 13, particulate matters deposited in the DPF assembly 13 start to burn after being contacted with hot air, and then the regeneration of the DPF assembly 13 starts; after the backpressure of the DPF processing apparatus 1 recovers to the specified value, the controller 6 stops supplying power to the heating wire 9 in the heating cavity 12, the heating wire 9 stops heating, at this time, the air pump 2 still continues to work, cold air continues to be supplied to the heating cavity 12, the heating cavity 12 is cooled, when the temperature of the heating cavity 12 falls to the specified limit, the controller 6 controls the air pump 2 to stop working, and the electric signal is fed back to the display 5, at this time, the green warning lamp 51 returns to be normally on, the yellow warning lamp 52 and the red warning lamp 53 are turned off, the DPF component 13 completes regeneration, and the power supply 7 can be turned off. When the DPF assembly 13 is regenerated, the controller 6 can continuously monitor the temperature in the heating cavity 12 in real time through the temperature sensor 8, if the temperature is too high, the controller 6 can pause to supply power to the heating wire 9 until the temperature is lower than the set temperature and then supply power to the heating wire 9 again, the safety of the DPF assembly 13 in the regeneration process is ensured, and the DPF assembly 13 is prevented from being burnt out due to too high temperature.

The utility model discloses set up heating chamber 12 in one side that DPF subassembly 13 admits air, the air reentries DPF subassembly 13 after heating by heater strip 9 in heating chamber 12 for heat, the temperature distribution in DPF subassembly 13 are more even, more are favorable to DPF subassembly 13's regeneration, and DPF subassembly 13 can not directly bear the huge heat that comes from heater strip 9, just so has avoided appearing the local high temperature in DPF subassembly 13 and has burnt out the condition; in addition, the air entering the DPF assembly 13 is the air which is continuously heated, the heat change of the hot air is not large, the DPF assembly 13 cannot generate large temperature sudden change in a short time, the risk of aging of the DPF assembly 13 is reduced, and the service life is prolonged.

The utility model discloses only need heat through air pump 2 to providing the air in DPF processing apparatus 1, can be in order to regenerate, lower to the requirement of air supply, the air is with low costs moreover, has higher economic suitability. The utility model discloses a carrier suitable for arbitrary automobile-used DPF material.

The above description is illustrative of the present invention and is not intended to limit the present invention, and the present invention may be modified in any manner without departing from the spirit of the present invention.

Claims

1. A parking electrical heating type DPF regeneration system comprises a DPF treatment device (1) and a controller (6), and is characterized in that: the DPF treatment device (1) is provided with a heating cavity (12) and a temperature sensor (8) on the air inlet side of a DPF assembly (13), a heating wire (9) is arranged in the heating cavity (12), and the temperature sensor (8) and the heating wire (9) are connected with a controller (6);

the heating cavity (12) is connected with an air pump (2) through a pipeline (10), a pressure sensor (3) is arranged on the air pump (2), and the pressure sensor (3) monitors the back pressure of the DPF treatment device (1) through the pipeline (10); the air pump (2) and the pressure sensor (3) are connected with the controller (6);

the controller (6) is connected with the storage battery (4) and the display (5), and the display (5) is provided with a warning lamp for feeding back the condition of the DPF treatment device (1); the controller (6) is provided with a power socket and is connected with an external power supply (7) through the power socket.

2. The parked electrically heated regenerative DPF system of claim 1, wherein: the air pump (2) supplies air to the DPF treatment device (1).

3. The parked electrically heated regenerative DPF system of claim 1, wherein: the DPF treatment device (1), the air pump (2) and the controller (6) are independently arranged and connected through a wiring harness or a pipeline.

4. The parked electrically heated regenerative DPF system of claim 1, wherein: the warning lamp comprises a green warning lamp (51), a yellow warning lamp (52) and a red warning lamp (53).

5. The parked electrically heated regenerative DPF system of claim 1, wherein: the display (5) is located in the cab.

6. The parked electrically heated regenerative DPF system of claim 1, wherein: the DPF treatment device (1) is sequentially and serially provided with an air inlet end (11), a heating cavity (12), a DPF assembly (13) and an air outlet end (14), and the air inlet end (11) is connected to the air pump (2) through a pipeline (10).