TWM540915U - Regeneration protection device of diesel engine exhaust purification smoke filter - Google Patents

Description

Diesel engine exhaust smoke purification filter regenerative reduction protection device

The present invention relates to a diesel engine exhaust smoke purification filter regenerative reduction protection device, in particular to automatically remove the particles in the filter during the waste exhaust process, so that the filter maintains the optimal filter state, and A diesel engine exhaust purification filter regenerative reduction protection device that can extend the life of the filter to achieve the purpose of air purification.

Diesel engines are increasingly used due to their high thermal efficiency, fuel economy, and low fuel prices. Diesel engines can be classified into mobile and fixed diesel engines depending on the application. Among them, mobile vehicles such as vehicles, railways, ships, agricultural machines and stackers, and fixed types such as generators and fixed-type power equipment and engineering equipment. Wait.

As the development of diesel engine technology has reached its limit, engine manufacturers are gradually improving the purification of engine exhaust gas by improving the way of diesel engine aftertreatment devices. At present, the most direct and effective way to purify particles (such as carbon particles) in the exhaust gas discharged from diesel engines is to install Diesel Particulate Filters (DPF) in the exhaust pipe of diesel vehicles, which can effectively capture 70%~90% of the particles in the exhaust gas, the principle is to let the engine exhaust through the pores and the tiny filter The core retains the particles and achieves the function of filtering, that is, the filter core of the filter (filter) is used to filter the particulate matter in the exhaust gas (flue gas) to achieve the filtering function.

However, after the filter is used for a period of time, the particles will accumulate on the pores of the filter core, which will gradually increase the back pressure of the exhaust gas of the engine, which will reduce the horsepower output of the engine and thus easily cause the engine to overheat.

The particles accumulated in the filter are removed by oxidative combustion to restore the filter to the filtering function, which is called regeneration. Observing the technology currently used in the regeneration of the filter (DPF), whether using manual disassembly or fully automatic, semi-automatic electronic control mode, can not fully achieve the purpose of filter activation.

Therefore, the creator of the present invention proposed a technical means for solving the above problems, that is, a regeneration and protection device for a diesel engine exhaust smoke purification filter, which can automatically and effectively remove particles in the filter during waste exhaust. In order to maintain the optimal filter smoke and extend the life of the filter for air purification purposes.

The diesel engine exhaust purification filter regeneration regeneration protection device of the present invention comprises a filter, a greenhouse, at least one ventilation pipe, an ignition member, a fuel tank, an engine start sensing device and a controller.

Wherein, the filter comprises an exhaust port and an air inlet; the greenhouse is connected to the filter, and the greenhouse comprises an outlet, an inlet, a splitter, a beveled flow piece and a sense of temperature a detector, the outlet is correspondingly connected to the air inlet, and the splitter and the oblique flow unit are oriented from the outlet toward the inlet The at least one venting pipe is connected to the greenhouse, and the at least one venting pipe includes an air inlet and an air outlet, the air outlet is correspondingly connected to the inlet; the ignition member is disposed adjacent to the At least one venting tube, and the ignition member includes an ignition needle and a fuel injector, the ignition needle and the fuel injector are disposed to face the diverter blade and the oblique angle equalizing sheet; the fuel tank is coupled to the The fuel injectors are respectively electrically connected to the temperature sensor, the ignition needle, the fuel injector and the engine starting sensing device.

Therefore, with the above structural design, the particles in the filter can be automatically and effectively removed during the waste exhaust process, so that the filter maintains the optimal filter state and the filter life is extended to achieve air purification. The purpose.

The filter described above is a ceramic filter. Of course, filters of other material types, such as cordierite or metallic iron chrome or silicon carbide, can also be used.

The surface of the filter described above is coated with a noble metal such as platinum, palladium or the like.

The shunt piece described above is a mesh splitter.

The above-mentioned oblique flow equalizing piece is folded with a plurality of oblique angle guiding blades.

The plurality of beveled guide vanes described above are inclined at 19 degrees, respectively.

The controller includes a processing module, a memory module and a display module.

In the above structure, a hydraulic pressure adjusting valve and a hydraulic pressure gauge are connected between the oil tank and the fuel injector.

1‧‧‧Diesel engine exhaust smoke purification filter regenerative reduction protection device

2‧‧‧Filter

21‧‧‧Exhaust port

22‧‧‧ inlet

3‧‧‧Enhanced greenhouse

31‧‧‧Export

32‧‧‧ Entrance

33‧‧‧Split

34‧‧‧ oblique angle sharing

341‧‧‧ Angled guide vanes

35‧‧‧temperature sensor

4‧‧‧ Ventilation

40‧‧‧air guide

41‧‧‧air inlet

42‧‧‧ outlet

5‧‧‧Ignition components

50‧‧‧ fuel tank

51‧‧‧Ignition needle

52‧‧‧Injector

53‧‧‧Supply pump

54‧‧‧Hydraulic pressure regulating valve

55‧‧‧oil pressure gauge

6‧‧‧ Controller

61‧‧‧Processing module

62‧‧‧Memory Module

63‧‧‧ display module

7‧‧‧Engine start sensor

1 is a perspective view of a preferred embodiment of the present invention.

FIG. 2 is a schematic diagram of a system configuration of a preferred embodiment of the present invention.

1 and FIG. 2, FIG. 1 is a perspective view of a preferred embodiment of the present invention, and FIG. 2 is a schematic diagram of a system configuration of a preferred embodiment of the present invention.

As shown in FIG. 1 and FIG. 2, there is shown a diesel engine exhaust smoke purification filter regeneration regeneration protection device 1, and the diesel engine exhaust smoke purification filter regeneration regeneration protection device 1 comprises a filter 2, a greenhouse 3. At least one venting pipe 4, an ignition member 5, a fuel tank 50, an engine starting sensing device 7, and a controller 6.

As shown in the figure, the filter 2 includes an exhaust port 21 and an air inlet 22; the greenhouse 3 is coupled to the filter 2, and the greenhouse 3 includes an outlet 31, an inlet 32, and a splitter 33. An oblique flow equalizer 34 and a temperature sensor 35, wherein the outlet 31 corresponds to the air inlet 22 of the filter 2, and the splitter 33 and the oblique flow equalizer 34 are connected from the outlet 31 toward the inlet 32. The ventilating connection 4 is connected to the greenhouse 3, and the at least one venting connection 4 includes an air inlet 41 and an air outlet 42. The air outlet 42 is connected to the greenhouse 3 The inlet member 32 is disposed adjacent to the at least one ventilation pipe 4, and the ignition member 5 includes an ignition pin 51 and an injector 52, wherein the ignition pin 51 and the injector 52 are disposed to face The splitter 33 and the oblique flow equalizer 34; the oil tank 50 is coupled to the fuel injector 52; the controller 6 is electrically connected to the temperature sensor 35, the ignition needle 51, the fuel injector 52 and the lead The engine starts the sensing device 7.

In operation, the exhaust gas of the diesel engine (not shown) flows to the booster 3 via at least one venting pipe 4, as shown in the figure, in the present embodiment, three venting pipes 4 are used, and The three venting pipes 4 are connected to an air guiding port 40, so that the exhaust gas can be concentrated by the air guiding port 40 and flowed through the three venting pipes 4 to the greenhouse 3 on average. After that, the exhaust gas will flow to the filter 2, and the filter 2 will filter the exhaust gas, that is, capture the particulates (carbon particles) in the exhaust gas.

When the particles in the filter 2 are accumulated to a certain extent, the ignition needle 51 and the fuel injector 52 of the ignition member 5 can be controlled by the controller 6 to perform the fuel injection ignition operation. In other words, the controller 6 can control the oil supply pump 53 to supply oil to the fuel injection nozzle 52 and perform fuel injection (for example, injection with an electromagnetic nozzle, and it can control the fuel injection diffusion angle), and control the ignition needle 51 to ignite. The combustion action, as such, the particles collected in the filter 2 can be effectively sintered by the temperature of the exhaust gas itself and the temperature given by the combustion of the ignition member 5.

In addition, the above-mentioned controller 6 can be used as an overall system operation control. For example, the controller 6 can judge the optimal time point according to the comprehensive conditions of the engine starting time, the exhausting pressure, and the exhausting temperature to make the ignition member 5 The ignition needle 51 and the fuel injector 52 perform a fuel injection ignition operation to sinter the fine particles. In other words, in addition to the temperature sensing of the temperature sensor 35, the pressure sensor, the oil sensor, the flow sensor, the speed sensor, etc. may be added as needed. The controller 6 is connected to the controller 6, and the controller 6 performs comprehensive judgment based on the measured data to cause the ignition needle 51 of the ignition member 5 and the injector 52 to perform a fuel injection ignition operation to sinter the particles. For example, the controller 6 can control the ignition needle 51 and the fuel injector 52 of the ignition member 5 to perform the fuel injection ignition operation to sinter the particles under any of the following conditions: (a) within a set time; b) The speed exceeds 40 km/h; (c) When the exhaust flow rate is higher than the set value; (d) When the exhaust flow exceeds the set value; or (e) When the exhaust back pressure exceeds 4 kPa.

The above-mentioned controller 6 can control the ignition timing of the ignition needle 51, the ignition interval of the ignition needle 51, and the injector 52 when the ignition needle 51 and the fuel injector 52 of the ignition member 5 are controlled to perform the fuel injection ignition operation to sinter the particles. The amount of fuel injection, the injection time of the injector 52, the injection interval of the injector 52, and the like.

In addition, the controller 6 is electrically connected to an engine start sensing device 7 for determining that the diesel engine exhaust gas purification filter regeneration and protection device 1 can be activated after the engine is actually started. In other words, the engine starting sensing device 7 is electrically connected to the vehicle electric door (ACC) and synchronously activates the induction engine and supplies power to the controller 6 to avoid regeneration of the diesel engine exhaust purification filter when the engine is not started. The wrong action of the restoration protection device 1, that is, because the general vehicle electric door has two sections, the first section is to turn on the power but the engine is not activated, at this time, the diesel engine exhaust smoke purification filter regeneration regeneration protection device 1 cannot be activated, in the second The engine will only start when the engine is started. At this time, the diesel engine exhaust smoke purification filter regeneration and protection device 1 can be activated, so that the diesel engine smoke purification filter regeneration regeneration protection device 1 will not be damaged.

Therefore, with the above structural design, the particles in the filter can be automatically and effectively removed during the waste exhaust process, so that the filter maintains the optimal filter state and the filter life is extended to achieve air purification. The purpose.

In the present embodiment, a hydraulic pressure regulating valve 54 and a hydraulic pressure gauge 55 are connected between the oil tank 50 and the fuel injection nozzle 52. Thereby, the oil pressure adjusting valve 54 can adjust the pressure of the oil supply pump 53 output, and the required ignition fire power can be adjusted according to the size of the filter 2; the oil pressure meter 55 can display the pressure value of the oil supply. Since the exhaust gas of each diesel engine is different from the gas flow rate, the pressure can be manually adjusted by the oil pressure regulating valve 54.

In the embodiment, the filter 2 described above is a ceramic filter. Of course, filters of other material types, such as cordierite or metallic iron chrome or silicon carbide, can also be used.

In the present embodiment, the surface of the filter 2 described above is coated with a noble metal such as platinum, palladium or the like. Thereby, during operation, the precious metal such as platinum, palladium or the like coated on the surface of the filter 2 can reduce the concentration with the hydrocarbons and carbon monoxide in the exhaust gas to reduce the concentration, that is, the filter 2 (for example, the internal passage thereof) The surface of the precious metal such as platinum, palladium or the like can be used as a catalyst to effectively oxidize and reduce HC (hydrocarbon) and CO (carbon monoxide), and the temperature of the exhaust gas itself and the ignition member can be utilized as described above. The temperature imparted by the combustion of 5 effectively sinters the particles collected in the filter 2, and finally is discharged into the atmosphere in the form of harmless CO ₂ (carbon dioxide) and water, so as to reduce pollution.

In the present embodiment, the above-mentioned splitter 33 is a mesh splitter. As shown in the figure, the splitter 33 is disposed adjacent to the outlet 31 of the greenhouse 3. Thereby, when the ignition needle 51 and the fuel injector 52 of the ignition member 5 perform the fuel injection ignition operation, the splitter 33 can compress and shorten the length of the flame tongue before the flame enters the filter 2, It is possible to prevent the flame from excessively contacting the surface of the filter 2.

In the present embodiment, the above-mentioned beveled flow equalizer 34 is folded with a plurality of beveled guide vanes 341, for example, 20 beveled guide vanes 341, and the beveled guide vanes 341 are inclined at 19 degrees respectively. (Of course, it can be designed to other angles as needed). As shown in the figure, the beveled flow equalizer 34 is disposed inside the greenhouse 3. Thereby, when the ignition needle 51 and the fuel injector 52 of the ignition member 5 perform the fuel injection ignition operation, that is, during the combustion, the oblique flow equalizing piece 34 can guide the flame to the inside of the filter 2 to be swirled. It can uniformly burn the area and improve the effect of sintering the particles.

In the embodiment, the controller 6 includes a processing module 61, a memory module 62, and a display module 63. The memory module 62 can memorize the total number of times the engine is started, the date and time of the system operation, whether the system is faulty, etc., and the display module 63 can be used to display various materials, such as pressure, temperature, and function setting values. , the amount of oil, whether it is faulty, the total number of engine starts, the flashing of the light, etc.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc., which are made within the spirit and principles of the present creation, should be included in the present creation. Within the scope of protection.

1‧‧‧Diesel engine exhaust smoke purification filter regenerative reduction protection device

2‧‧‧Filter

21‧‧‧Exhaust port

22‧‧‧ inlet

3‧‧‧Enhanced greenhouse

31‧‧‧Export

32‧‧‧ Entrance

33‧‧‧Split

34‧‧‧ oblique angle sharing

341‧‧‧ Angled guide vanes

35‧‧‧temperature sensor

4‧‧‧ Ventilation

40‧‧‧air guide

41‧‧‧air inlet

42‧‧‧ outlet

5‧‧‧Ignition components

50‧‧‧ fuel tank

51‧‧‧Ignition needle

52‧‧‧Injector

53‧‧‧Supply pump

54‧‧‧Hydraulic pressure regulating valve

55‧‧‧oil pressure gauge

6‧‧‧ Controller

61‧‧‧Processing module

62‧‧‧Memory Module

63‧‧‧ display module

7‧‧‧Engine start sensor

Claims (8)

A diesel engine exhaust smoke purification filter regenerative reduction protection device comprises: a filter comprising an exhaust port and an air inlet; a greenhouse, connected to the filter, and the greenhouse comprises an outlet, a An inlet, a splitter, a beveled flow and a temperature sensor, wherein the outlet is correspondingly connected to the air inlet, and the splitter and the oblique equalizer are oriented from the outlet toward the entrance Arranging; at least one venting pipe is connected to the greenhouse, and the at least one venting pipe includes an air inlet and an air outlet, the air outlet is correspondingly connected to the inlet; an ignition member is disposed adjacent to The ignition member includes an ignition pin and an injector, the ignition needle and the injector are disposed to face the diverter and the oblique confluent piece; a fuel tank Connecting to the fuel injector; an engine starting sensing device; and a controller electrically connected to the temperature sensor, the ignition needle, the fuel injector, and the engine starting sensing device. The diesel engine exhaust gas purification filter regenerative reduction protection device according to claim 1, wherein the filter is a ceramic filter. The diesel engine exhaust gas purification filter regenerative reduction protection device according to claim 1, wherein the surface of the filter is coated with a precious metal. The diesel engine exhaust gas purification filter regenerative reduction protection device according to claim 1, wherein the splitter is a mesh splitter. The diesel engine exhaust gas purification filter regenerative reduction protection device according to claim 1, wherein the oblique flow equalizer is folded with a plurality of oblique flow guide vanes. The diesel engine exhaust gas purification filter regenerative reduction protection device according to claim 5, wherein the plurality of oblique angle guide vanes are inclined at 19 degrees respectively. The diesel engine exhaust gas purification filter regeneration regeneration protection device according to claim 1, wherein the controller comprises a processing module, a memory module and a display module. The diesel engine exhaust gas purification filter regenerative reduction protection device according to claim 1, wherein a hydraulic pressure regulating valve and a hydraulic pressure gauge are connected between the oil tank and the fuel injection nozzle.