TWM459905U - Improved combustion purification treatment device for vehicle-discharged smoke emission - Google Patents

Description

Improved vehicle emission black smoke combustion purification treatment device

The present invention relates to a device for effectively removing carbon deposits from a filter device installed at the rear end of a diesel engine exhaust pipe to maintain a smooth discharge of exhaust gas from a diesel engine.

Diesel engine vehicles convert the chemical energy of the fuel into heat energy and power output in sequence through the combustion reaction in the cylinder after the diesel engine or the alternative fuel is ignited by compression ignition. Therefore, various gases, liquids, and Solid pollutants, mainly granules (PM), smoke, nitrogen oxides (NO _x ), etc. It also emits gaseous pollutants such as carbon monoxide (CO), sulfur oxides (SO _x ), carbon dioxide (CO ₂ ), and hydrocarbons (HC), causing global environmental damage such as ozone depletion, acid rain, and greenhouse effect. Destruction problems also cause harm to human health and are therefore of concern to the public. For example, the formation of nitric acid by nitrogen oxides produces acid rain, which also destroys the ozone layer and acts as a photochemical smog with sunlight. Particles or black smoke may contain polycyclic aromatic hydrocarbons (PAHs) or metal compounds. Causes lung, trachea, respiratory tract and other diseases. According to the national regional air pollution emissions database TED 4.2 version of the conjecture data show that accounting for 3% of the number of motor vehicle diesel emissions from all mobile sources of 46% PM and 51% NO _x, in particular, the national passenger and freight operators almost all use Diesel vehicles are transportation vehicles. Therefore, how to prevent diesel engine exhaust pollution from improving the air quality by prevention technology or control strategy is an important issue today.

The current automotive industry has been constantly proposing various solutions, including installing in firewood. The filtering system at the rear end of the exhaust pipe of the oil engine is effective in effectively filtering the exhaust gas emitted by the diesel engine. However, this kind of filtration system installed at the rear end of the diesel engine exhaust pipe, after a period of use, the carbon formed will cause blockage at the filter core, which not only affects the effect of filtering the exhaust gas of the diesel engine, but also affects the diesel engine. The function of normal operation.

Since the exhaust gas emitted by the diesel vehicle engine passes through the filtering system, carbon deposits are generated in the filter core of the filtering system, and when the carbon deposit reaches a certain thickness, a blockage phenomenon occurs, and the pressure (back pressure) in the exhaust pipe rises. Therefore, at present, the automotive industry installs a back pressure sensor in the exhaust pipe of a diesel vehicle engine to detect the pressure value at the filter system filter core, thereby detecting the carbon blockage state, once the diesel vehicle engine is installed. When the exhaust gas passes through the filter system's filter carbon to reach a considerable thickness and forms an exhaust blockage, an elevated exhaust back pressure is detected. At this time, the engine management system will send a signal to increase the engine operating temperature and will accumulate in the exhaust gas. The carbon deposition combustion of the filter system filter surface is removed to eliminate the plugging of the filter core. However, due to poor car environment (such as Taiwan's major metropolitan areas), vehicles often stop and go, or personal car habits (short-use or not on the highway), driving at frequent idle speeds, so that A diesel vehicle equipped with a filtration system may not be able to increase the operating temperature of the engine because of the low engine speed, and it is not possible to burn the carbon deposited on the surface of the filter system, which not only affects the effect of filtering the exhaust gas of the diesel engine. And affect the normal operation of the diesel engine. At this time, the car can only be driven to the car service factory, and the technician burns the carbon accumulated on the surface of the filter system filter core, which is not only time-consuming, but also uneconomical and very troublesome.

In Europe and the United States, in order to achieve standard four environmentally friendly vehicles, in addition to improving the introduction of a common rail type engine ignition system for the computer, to further improve the toxic gases _{(CO, HC, NO X,} Sox) and carbon black particles, in addition to the installation of the honeycomb Ceramic filter element, after a certain increase in back pressure, will add a little diesel oil at the exit of the engine valve to increase the combustion temperature, in order to achieve sufficient combustion temperature to burn the accumulated particles in the filter core, or in the exhaust pipe. Add a small amount of diesel near the filter to replenish the temperature inside the filter. However, the method described above must be combined with the original design electronic structure of the vehicle. Therefore, it is necessary to modify the factory vehicle, so that the original mechanism of the vehicle will be changed, and the maintenance and repair in the future is extremely inconvenient, economical and practical. Sex is greatly discounted, and it is not ideal in the promotion of practice.

The patent case of Taiwan's M435955 "Vehicle emission black smoke combustion purification treatment improvement device" approved by the applicant in this case is a problem in improving the conventional vehicle emission black smoke combustion device; its main feature is in an exhaust pipe. A combustion system and an exhaust gas buffer filtration system are sequentially arranged from the inlet end to the outlet end; when the exhaust gas passes through the combustion system, it is forcibly diverted through a plurality of gas guiding passages, and then the fuel atomizing nozzle is not subjected to the exhaust gas flow. After the fuel is sprayed out and atomized, it is ignited and ignited by the igniter. The exhaust gas flow through the air guiding passage uses the siphon to suck out the heat in the burned chamber to mix the exhaust gas to raise the temperature of the exhaust gas; The exhaust gas buffer unit and the filter unit of the exhaust gas buffer filter system are used to reduce the exhaust gas flow rate by using the exhaust gas buffer unit, and to avoid the exhaust gas returning to blow out the ignited flame, and to homogenize the exhaust gas flow before passing through the filter unit, thereby utilizing the high temperature of the exhaust gas. Eliminate carbon deposits accumulated in the filter unit to maintain smooth flow of diesel engine exhaust .

However, the disadvantage of the M435955 patent is that the exhaust gas discharged is blocked by the structure of the fuel atomizing nozzle, etc., so that the air conduction is not smooth and the combustion is incomplete, and the flame is easily extinguished.

The main purpose of this creation is to solve the conventional diesel engine vehicles in which a filter system is installed in the exhaust pipe. The filter system installed at the rear end of the exhaust pipe of the diesel engine effectively filters a large amount of diesel engine emissions. Exhaust gas, but this is installed at the rear end of the diesel engine exhaust pipe After a period of use, the carbon deposit formed will cause blockage in the filter core, which not only affects the effect of filtering the diesel engine exhaust gas, but also affects the function of the diesel engine.

Another purpose of this creation is to improve the exhaust gas of the Taiwanese M435955 patent case when it is discharged, the exhaust gas will be blocked by the structure of the fuel atomizing nozzle, etc., resulting in poor air conduction and incomplete combustion, and easy to extinguish.

The main feature of this creation is that the intake end of the exhaust pipe is connected to a combustion system, and the combustion system is connected to an exhaust gas buffer filter system; when the exhaust gas is introduced into the combustion chamber of the combustion system, it is not subjected to the exhaust gas flow. After the fuel atomizing nozzle sprays and atomizes the fuel, it immediately ignites and burns with the igniter, and uses air pressure pump to input air into the combustion chamber to assist combustion; the high temperature exhaust gas sequentially passes through the exhaust buffer unit of the exhaust buffering filter system and The filtering unit uses the exhaust gas buffer unit to slow down the exhaust gas flow rate, and avoids the exhaust gas recirculation to blow out the ignited flame, and then uses the exhaust gas to push the spiral vane to rotate to force the exhaust gas flow to pass through the filtering unit, thereby utilizing the high temperature removal of the exhaust gas to accumulate in the filtering unit. The carbon deposits to maintain the smooth flow of exhaust from the diesel engine.

The technical means for the combustion system includes an outer tube body having a combustion chamber therein, and a cavity formed in the outer tube body, wherein the chamber is provided with a fuel atomizing nozzle and at least one igniter, The fuel atomizing nozzle is connected to a pump fuel tank by a pipeline, and the pipeline is provided with a solenoid valve, and the chamber of the cavity is connected to a pneumatic pump by another pipeline, and the combustion chamber of the outer tubular body is connected to a vehicle. The exhaust pipe intake end.

The technical means for the exhaust gas buffer filter system is a combustion chamber that communicates with the outer tube body. The exhaust gas buffer filter system comprises an exhaust gas buffer unit and a filter unit arranged in sequence, and the exhaust gas buffer unit has a Exhaust buffer cover and a freely rotatable scroll The vane, the exhaust gas passing through the combustion system sequentially passes through the exhaust buffer cover and then pushes the scroll to rotate, thereby forcing the exhaust gas to uniformly pass through the filter unit and discharging from the outlet end of the exhaust pipe, thereby utilizing uniform high-temperature exhaust gas. The carbon accumulated in the filter unit is burned off.

The exhaust buffer cover of the exhaust gas buffer unit of the present invention is a conical cover, and the tapered peripheral wall of the conical cover is provided with a plurality of through holes through which the exhaust gas is provided to pass the exhaust gas through the cone After the hood is formed, the flow rate of the exhaust gas is reduced, and the exhaust gas after the flow rate is reduced, and then the rotation of the vortex blade is accelerated to forcefully and more uniformly pass through the filter unit.

1‧‧‧Exhaust pipe

11‧‧‧ intake end

12‧‧‧Exhaust end

2‧‧‧Combustion system

21‧‧‧External body

210‧‧‧ combustion chamber

22‧‧‧ cavity

220‧‧‧ chamber

23‧‧‧ Fuel atomizing nozzle

24‧‧‧Igniter

241‧‧‧Aizi

242‧‧‧ protective cover

25‧‧‧ pumping fuel tank

251‧‧‧ solenoid valve

3‧‧‧Exhaust buffer filtration system

3A‧‧‧Exhaust buffer unit

3B‧‧‧Filter unit

31‧‧‧Exhaust buffer cover

311‧‧‧through holes

32‧‧‧Vortex blades

321‧‧‧ pivot

33‧‧‧ filter

4‧‧‧Air pump

The first figure is a schematic diagram showing an embodiment of the structure of the present purification processing apparatus.

The implementation of the present invention will be described in more detail below with reference to the drawings and component symbols, so that those skilled in the art can implement the present specification after studying the present specification.

As shown in the first figure, the improved vehicle emission black smoke combustion purification treatment device provided by the present invention comprises a combustion system 2 and an exhaust gas buffer filtration system 3 connected in sequence; wherein the combustion system 2 includes an interior An outer tube body 21 having a combustion chamber 210, the side wall of the outer tube body 21 is connected to the inlet end 11 of the exhaust pipe 1, and one end of the outer tube body 21 is provided with a cavity 22, and a cavity 22 is formed in the cavity 22. 220; a fuel atomizing nozzle 23 and at least one igniter 24 are disposed in the chamber 220. The fuel atomizing nozzle 23 is connected to the pump fuel tank 25 located outside the outer tube body 21 by a pipeline, and is disposed in the pipeline. There is a solenoid valve 251; the chamber 220 of the cavity 22 is connected to a pneumatic pump 4 by another pipeline, and the air pressure pump 4 can transport the air outside the outer tubular body 21 into the chamber 220; The igniter 24 has an AI 241 and a protective sleeve 242 covering the outside of the AI 241. The protective sleeve 242 can prevent the AI 241 from being subjected to carbon deposition and affecting the ignition timing.

The exhaust gas buffer filter system 3 includes an exhaust gas buffer unit 3A and a filter unit 3B. The exhaust gas buffer unit 3A has an exhaust gas buffer cover 31 and a scroll blade 32 having a special curved shape and freely rotatable. The exhaust gas passing through the combustion system 2 sequentially passes through the exhaust buffer cover 31 and the scroll vanes 32, and then passes through the filter unit 3B to be discharged from the outlet end 12. A preferred embodiment of the exhaust buffer cover 31 is a tapered cover having a plurality of through holes 311 formed in the tapered peripheral wall. The filter unit 3B is provided with at least one filter element 33 at the exhaust gas discharge end of the exhaust gas buffer unit 3A. The center of the scroll vane 32 is pivotally disposed at a fixed position by a pivot 321 such that the scroll vane 32 is located between the exhaust buffer cover 31 and the filter unit 3B; when the scroll vane 32 is subjected to axial air flow, it can be pushed Rotate to force the airflow through the filter unit 3B.

According to the purification treatment improvement device of the present invention, in the normal working state, the exhaust gas discharged from the diesel engine is directly intake into the combustion chamber 210, and at this time, the fuel is delivered to the solenoid valve 251 via the pipeline through the pump fuel tank 25. Then, the start time of the solenoid valve 251 is controlled to output the fuel to the fuel atomizing nozzle 23 to eject the oil and gas atomized into fine molecules, and the ignition of the igniter 24 ignites and burns the atomized oil and gas, so that the temperature in the combustion chamber 210 rises. At the same time, the air pressure pump 4 operates to input the outside air into the chamber 220 and the combustion chamber 210 and mix the oil and gas to an optimal ratio of fuel to air to obtain optimized combustion, and the exhaust gas immediately flows. The exhaust gas buffer cover 31 passes through the respective through holes 311, and the velocity of the exhaust gas flow is buffered by the exhaust gas buffer cover 31. The air flow passing through the exhaust buffer cover 31 pushes the scroll blades 32 to rotate while being vortexed by the blades. The blade curvature of 32 directs the exhaust gas flow to forcefully and more uniformly flow to the filter element 33, utilizing high temperature waste The gas is burned off by the carbon deposited on the filter element 33, and the exhaust gas is finally discharged from the gas outlet end 12.

The above description is only for the purpose of explaining the preferred embodiment of the present invention, and is not intended to impose any limitation on the present creation, so that any modifications or changes to the creation made in the same creative spirit are made. , should still be included in the scope of protection of this creative intent.

1‧‧‧Exhaust pipe

11‧‧‧ intake end

12‧‧‧Exhaust end

2‧‧‧Combustion system

21‧‧‧External body

210‧‧‧ combustion chamber

22‧‧‧ cavity

220‧‧‧ chamber

23‧‧‧ Fuel atomizing nozzle

24‧‧‧Igniter

241‧‧‧Aizi

242‧‧‧ protective cover

25‧‧‧ pumping fuel tank

251‧‧‧ solenoid valve

3‧‧‧Exhaust buffer filtration system

3A‧‧‧Exhaust buffer unit

3B‧‧‧Filter unit

31‧‧‧Exhaust buffer cover

311‧‧‧through holes

32‧‧‧Vortex blades

321‧‧‧ pivot

33‧‧‧ filter

4‧‧‧Air pump

Claims (2)

An improved vehicle emission black smoke combustion purification treatment device comprises: a combustion system comprising an outer tube body having a combustion chamber therein, wherein the outer tube body is provided with a cavity, and the chamber in the chamber is provided with a fuel atomization a nozzle and at least one igniter, the fuel atomizing nozzle is connected to a pump tank by a pipeline, and the chamber of the chamber is connected to a pneumatic pump by another pipeline, and the combustion chamber of the outer tube communicates with a vehicle An exhaust gas inlet end; an exhaust gas buffer filter system, connected to the combustion chamber of the outer tube body, the exhaust gas buffer filter system comprises an exhaust gas buffer unit and a filter unit arranged in sequence, the exhaust gas buffer unit has an exhaust gas a buffer cover and a freely rotatable scroll blade, the exhaust gas passing through the combustion system sequentially passes through the exhaust gas buffer cover to push the scroll blade to rotate, thereby forcing the exhaust gas to uniformly pass through the filter unit from the exhaust pipe The outlet end is discharged. The improved vehicle emission black smoke combustion purification treatment device according to claim 1, wherein the exhaust gas buffer cover is a conical cover, and the tapered peripheral wall of the conical cover is provided with a plurality of through holes.