Energy-saving and emission-reducing filtering device of engine

Abstract

The utility model provides a filtering device for energy conservation and emission reduction of an engine, and relates to the technical field of new energy automobiles. A waste gas treatment pipe is fixed to the right side of the first connecting pipe; a second connecting pipe is fixed to the right side of the waste gas treatment pipe; a recycling gas inlet pipe is fixed on the right side of the bottom of the waste gas treatment pipe; a recovery gas outlet pipe is fixed on the right side of the top of the waste gas treatment pipe; a group of waste heat recovery pipes are welded in the waste gas treatment pipe; a filter plate positioning baffle is rotationally mounted on the left side of the bottom of the waste gas treatment pipe; and a filter plate is embedded in the left side of the waste gas treatment pipe. According to the device, the waste heat recovery effect can be improved, the situation that normal exhaust is affected due to blockage of the three-way catalyst is avoided, and the filter plate is very convenient to clean more smoothly.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy vehicles, and in particular to a filtering device for energy saving and emission reduction of an engine. Background Art

[0002] Cars are an essential means of transportation for people's lives, bringing great convenience to people's lives and work. Reducing energy consumption and reducing environmental pollution are important issues facing the development of the automobile industry today.

[0003] At present, new energy vehicles are developing rapidly. Many cars rely on fuel to generate electricity and then rely on electric motors to drive the vehicle. However, part of the heat generated by the engine will be discharged outward in the exhaust gas, causing waste. Therefore, it is necessary to recycle the waste heat in the exhaust gas. For example, the patent with application number 201720168350.8 discloses an energy-saving and emission-reducing automobile exhaust recovery and reuse device. The above patent relies on the heat in the exhaust gas and fuel to drive a micro-engine to generate electricity, thereby achieving the effect of energy saving and emission reduction. However, the structure for recovering waste heat is relatively simple, so the waste heat recovery effect is poor. Moreover, cars are currently equipped with three-way catalytic converters to purify the exhaust gas discharged by the engine, but the exhaust gas discharged by the engine contains a lot of large particles and sludge, which can easily clog the three-way catalytic converter and affect normal exhaust, and even cause engine damage. Summary of the Invention

[0004] The utility model provides a filtering device for energy saving and emission reduction of an engine, which can improve the effect of waste heat recovery, avoid clogging of the three-way catalytic converter and affect normal exhaust, and is also very convenient when cleaning the filter plate.

[0005] In a first aspect of the present disclosure, a filtering device for energy saving and emission reduction of an engine is provided, specifically comprising: a first connecting pipe;

[0006] An exhaust gas treatment pipe is fixed to the right side of the No. 1 connecting pipe; a No. 2 connecting pipe is fixed to the right side of the exhaust gas treatment pipe; a recovery air inlet pipe is fixed to the right side of the bottom of the exhaust gas treatment pipe; a recovery air outlet pipe is fixed to the right side of the top of the exhaust gas treatment pipe; a group of waste heat recovery pipes are welded inside the exhaust gas treatment pipe; a filter plate positioning baffle is rotatably installed on the left side of the bottom of the exhaust gas treatment pipe; a filter plate is also embedded in the left side of the exhaust gas treatment pipe.

[0007] In at least some embodiments, the filter plate positioning baffle is a fan-shaped plate. When the notch on the filter plate positioning baffle is rotated to the extreme left, the top surface of the filter plate positioning baffle will be in close contact with the bottom surface of the filter plate. When the notch on the filter plate positioning baffle is rotated to the extreme right, the top surface of the filter plate positioning baffle will be separated from the bottom of the filter plate.

[0008] In at least some embodiments, the waste heat recovery pipe is composed of three Chinese-shaped tubes, each of which has a Chinese-shaped cavity inside, and the Chinese-shaped cavities inside the three Chinese-shaped tubes are connected vertically.

[0009] In at least some embodiments, the filter plate positioning baffle is a magnet plate, the exhaust gas treatment pipe is an iron pipe body, and the outer side of the filter plate positioning baffle is also wrapped with a layer of rubber.

[0010] In at least some embodiments, the waste heat recovery pipe is provided with about eleven rectangular openings extending therethrough, and a plurality of long strip-shaped protrusions are equidistantly provided in the rectangular openings on the waste heat recovery pipe.

[0011] In at least some embodiments, the waste heat recovery pipe is a copper pipe, the long strip protrusion on the waste heat recovery pipe is also a copper structure, and the left side of the filter plate is also a concave structure.

[0012] In at least some embodiments, each of the long strip protrusions on the waste heat recovery pipe is provided with a long strip cavity inside, and each of the long strip cavities is communicated with the Chinese-character-shaped cavity inside the waste heat recovery pipe.

[0013] The utility model provides a filtering device for engine energy saving and emission reduction, which has the following beneficial effects:

[0014] The waste heat recovery pipe in the utility model is used to recover waste heat in the exhaust gas, and the Chinese-character structure of the waste heat recovery pipe can increase the contact area with the exhaust gas, while increasing the distance of air flowing inside it, thereby improving the effect of waste heat recovery, and the filter plate can pre-filter large particles and sludge in the exhaust gas to avoid clogging of the three-way catalytic converter and affecting normal exhaust, and it is also very convenient to clean the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings of the embodiments will be briefly introduced below.

[0016] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0017] In the attached figure:

[0018] Figure 1 A schematic diagram showing the main shaft side of the overall structure of the present application is shown;

[0019] Figure 2 A schematic diagram showing the elevation side of the overall structure of the present application is shown;

[0020] Figure 3 Shows a schematic diagram of the main shaft side after cutting of the present application;

[0021] Figure 4 A schematic diagram of the upward axis side of the filter plate when it is disassembled in this application is shown;

[0022] Figure 5 Shows a schematic structural diagram of the waste heat recovery pipe in this application;

[0023] Figure 6 The figure shows a schematic diagram of the structure of the waste heat recovery pipe after being cut off in this application;

[0024] Reference Signs List

[0025] 1. Connecting pipe No. 1; 2. Connecting pipe No. 2; 3. Waste gas treatment pipe; 4. Recovery air inlet pipe; 5. Recovery air outlet pipe; 6. Waste heat recovery pipe; 7. Filter plate positioning baffle; 8. Filter plate. DETAILED DESCRIPTION

[0026] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Example 1: Please refer to Figures 1 to 6 :

[0028] The utility model proposes a filtering device for energy saving and emission reduction of an engine, comprising: a first connecting pipe 1;

[0029] An exhaust gas treatment pipe 3 is fixed to the right side of the No. 1 connecting pipe 1. The No. 1 connecting pipe 1 is used to guide the exhaust gas discharged by the engine into the exhaust gas treatment pipe 3. The exhaust gas treatment pipe 3 is used to support the waste heat recovery pipe 6 and the filter plate 8; a No. 2 connecting pipe 2 is fixed to the right side of the exhaust gas treatment pipe 3. The No. 2 connecting pipe 2 is used to guide the treated exhaust gas into the three-way catalytic converter; a recovery air intake pipe 4 is fixed to the right side of the bottom of the exhaust gas treatment pipe 3. The recovery air intake pipe 4 is used to guide the external air into the waste heat recovery pipe; a recovery air outlet pipe 5 is fixed to the right side of the top of the exhaust gas treatment pipe 3. The recovery air outlet pipe 5 is used to guide the heated air into the micro-engine for auxiliary power generation; the exhaust gas treatment pipe 3 is fixed to the right side of the top of the exhaust gas treatment pipe 3. A group of waste heat recovery pipes 6 are welded inside the exhaust pipe 3. The waste heat recovery pipes 6 are used to recycle the residual heat in the engine exhaust gas, thereby achieving the effect of energy saving and emission reduction; a filter plate positioning baffle 7 is rotatably installed on the left side of the bottom of the exhaust gas treatment pipe 3, and the filter plate positioning baffle 7 is used to limit the filter plate 8; a filter plate 8 is also embedded in the left side of the exhaust gas treatment pipe 3. After the car engine is started, the exhaust gas discharged by the engine will enter the exhaust gas treatment pipe 3 through the No. 1 connecting pipe 1, and then the filter plate 8 can perform preliminary filtering of large particles and sludge in the exhaust gas to prevent large particles and more sludge from entering the three-way catalytic converter through the No. 2 connecting pipe 2 and causing blockage.

[0030] In the embodiment of the present disclosure, Figure 3-Figure 4 As shown, the filter plate positioning baffle 7 is a fan-shaped plate. When the notch on the filter plate positioning baffle 7 is rotated to the extreme left, the top surface of the filter plate positioning baffle 7 will be in close contact with the bottom surface of the filter plate 8, and when the notch on the filter plate positioning baffle 7 is rotated to the extreme right, the top surface of the filter plate positioning baffle 7 will be separated from the bottom of the filter plate 8. When the filter plate 8 needs to be cleaned or replaced, it is only necessary to first rotate the notch on the filter plate positioning baffle 7 to the extreme right, and then the filter plate 8 can be pulled out downward for cleaning or replacement. When installing the filter plate 8, first insert it into the exhaust gas treatment pipe 3, and then rotate the notch on the filter plate positioning baffle 7 to the extreme left. At this time, the filter plate positioning baffle 7 will limit the filter plate 8 from moving downward, thereby fixing the position of the filter plate 8.

[0031] In the embodiment of the present disclosure, Figure 3 、 Figure 5 and Figure 6 As shown, the waste heat recovery pipe 6 is composed of three Chinese-shaped tubes, each of which has a Chinese-shaped cavity inside, and the Chinese-shaped cavities inside the three Chinese-shaped tubes are connected up and down. When the car is running, the external air will enter the waste heat recovery pipe 6 through the recovery intake pipe 4, and then the air will flow upward in the Chinese-shaped cavity inside the waste heat recovery pipe 6. The Chinese-shaped cavity can extend the air flow distance and increase the contact area with the outer wall of the waste heat recovery pipe 6.

[0032] In the embodiment of the present disclosure, Figure 2-Figure 4As shown, the filter plate positioning baffle 7 is a magnet plate, the exhaust gas treatment pipe 3 is an iron pipe body, and the outside of the filter plate positioning baffle 7 is also wrapped with a layer of rubber. Therefore, the filter plate positioning baffle 7 can be firmly adsorbed with the exhaust gas treatment pipe 3, and the rubber on the outside of the filter plate positioning baffle 7 can also increase the friction between it and the exhaust gas treatment pipe 3, so that the filter plate positioning baffle 7 is not easy to loosen during use.

[0033] In the embodiment of the present disclosure, Figure 3 、 Figure 5 and Figure 6 As shown, the waste heat recovery pipe 6 is provided with about eleven rectangular openings passing through it, and a number of long strip protrusions are evenly spaced in the rectangular openings on the waste heat recovery pipe 6. When in use, the exhaust gas will flow to the right in the exhaust gas treatment pipe 3. During this process, the exhaust gas will pass through the rectangular openings on the waste heat recovery pipe 6, so the heat in the exhaust gas will be absorbed by the outer wall of the waste heat recovery pipe 6 and the long strip protrusions on the waste heat recovery pipe 6.

[0034] In the embodiment of the present disclosure, Figure 6 As shown, a long strip cavity is provided inside the long strip protrusions on the waste heat recovery pipe 6, and the long strip cavities are connected with the Chinese-character cavity inside the waste heat recovery pipe 6. When the air flows in the waste heat recovery pipe 6, it will also enter the long strip cavity inside the long strip protrusions on the waste heat recovery pipe 6. Therefore, the air in the waste heat recovery pipe 6 will absorb the heat on the outer wall of the waste heat recovery pipe 6 and the long strip protrusions on the waste heat recovery pipe 6.

[0035] Example 2, based on Example 1, Figures 1-6 As shown, the waste heat recovery pipe 6 is a copper pipe, and the long strip protrusion on the waste heat recovery pipe 6 is also a copper structure. The left side of the filter plate 8 is also a concave structure. When in use, the air will flow upward in the Chinese-character cavity inside the waste heat recovery pipe 6. In this process, the air in the waste heat recovery pipe 6 will absorb the heat on the outer wall of the waste heat recovery pipe 6 and the long strip protrusion on the waste heat recovery pipe 6. Finally, these air will be introduced into the micro-engine for auxiliary power generation through the recovery outlet pipe 5, thereby achieving the effect of energy saving and emission reduction, and the concave structure on the left side of the filter plate 8 can collect the filtered large particles and sludge, to avoid large particles and sludge remaining in the exhaust gas treatment pipe 3 when the filter plate 8 is taken out downward.

[0036] The working principle of this embodiment: during installation, the left end of the No. 1 connecting pipe 1 can be connected to the exhaust port of the engine, the right end of the No. 2 connecting pipe 2 can be connected to the three-way catalytic converter, the recovery intake pipe 4 can be connected to the air intake position in front of the car, and the recovery outlet pipe 5 can be connected to the micro-engine for auxiliary power generation. After the car engine is started, the exhaust gas discharged by the engine will enter the exhaust gas treatment pipe 3 through the No. 1 connecting pipe 1, and then the filter plate 8 can perform preliminary filtration on the large particles and sludge in the exhaust gas to prevent large particles and more sludge from entering the three-way catalytic converter through the No. 2 connecting pipe 2 and causing blockage. Then the exhaust gas will continue to flow to the right in the exhaust gas treatment pipe 3. During this process, the exhaust gas will pass through the rectangular opening on the waste heat recovery pipe 6, so the heat in the exhaust gas will be absorbed by the outer wall of the waste heat recovery pipe 6 and the long strip protrusion on the waste heat recovery pipe 6. Finally, the exhaust gas will enter the three-way catalytic converter through the No. 2 connecting pipe 2, and the outside air will The air enters the waste heat recovery pipe 6 through the recovery air intake pipe 4, and then the air will flow upward in the Chinese-character shaped cavity inside the waste heat recovery pipe 6. The Chinese-character shaped cavity can extend the air flow distance and increase the contact area with the outer wall of the waste heat recovery pipe 6. In this process, the air in the waste heat recovery pipe 6 will absorb the heat on the outer wall of the waste heat recovery pipe 6 and the long strip protrusions on the waste heat recovery pipe 6. Finally, the air will be introduced into the micro-engine for auxiliary power generation through the recovery air outlet pipe 5, thereby achieving the effect of energy saving and emission reduction. When the filter plate 8 needs to be cleaned or replaced, just rotate the notch on the filter plate positioning baffle 7 to the far right, and then pull the filter plate 8 down for cleaning or replacement. When installing the filter plate 8, first insert it into the exhaust gas treatment pipe 3, and then rotate the notch on the filter plate positioning baffle 7 to the far left. At this time, the filter plate positioning baffle 7 will limit the filter plate 8 from moving downward, so that the position of the filter plate 8 can be fixed.

[0037] In this article, there are several points to note:

[0038] 1. The drawings of the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure. Other structures may refer to conventional designs.

[0039] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to form new embodiments.

[0040] The above are only specific embodiments of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A filtering device for engine energy conservation and emission reduction, comprising: The first connecting pipe (1); characterized in that: A waste gas treatment pipe (3) is fixed to the right side of the first connecting pipe (1); a second connecting pipe (2) is fixed to the right side of the waste gas treatment pipe (3); a recovery intake pipe (4) is fixed to the bottom right side of the waste gas treatment pipe (3); a recovery outlet pipe (5) is fixed to the top right side of the waste gas treatment pipe (3); a group of waste heat recovery pipes (6) are welded inside the waste gas treatment pipe (3); a filter plate positioning baffle (7) is rotatably installed at the bottom left side of the waste gas treatment pipe (3); and a filter plate (8) is also embedded and installed on the left side of the waste gas treatment pipe (3).

2. The filtering device for engine energy conservation and emission reduction according to claim 1, characterized in that, The waste heat recovery pipe (6) is composed of three Chinese character-shaped pipes, and a Chinese character-shaped cavity is provided inside each Chinese character-shaped pipe, and the Chinese character-shaped cavities inside the three Chinese character-shaped pipes are connected up and down.

3. The filtering device for engine energy conservation and emission reduction according to claim 1, characterized in that, Eleven rectangular openings penetrating from left to right are provided on the waste heat recovery pipe (6), and a number of strip-shaped protrusions are equally spaced in the rectangular openings on the waste heat recovery pipe (6).

4. The filtering device for engine energy conservation and emission reduction according to claim 1, characterized in that, A strip-shaped cavity is provided inside each of the strip-shaped protrusions on the waste heat recovery pipe (6), and the strip-shaped cavities are all connected to the Chinese character-shaped cavity inside the waste heat recovery pipe (6).

5. The filtering device for engine energy conservation and emission reduction according to claim 1, characterized in that, The filter plate positioning baffle (7) is a sector plate. When the notch on the filter plate positioning baffle (7) rotates to the leftmost side, the top surface of the filter plate positioning baffle (7) will be in close contact with the bottom surface of the filter plate (8). When the notch on the filter plate positioning baffle (7) rotates to the rightmost side, the top surface of the filter plate positioning baffle (7) will be separated from the bottom surface of the filter plate (8).

6. The filtering device for engine energy conservation and emission reduction according to claim 1, characterized in that, The filter plate positioning baffle (7) is a magnet plate, the waste gas treatment pipe (3) is an iron pipe body, and a layer of rubber is also wrapped on the outside of the filter plate positioning baffle (7).

7. The filtering device for engine energy conservation and emission reduction according to claim 1, characterized in that, The waste heat recovery pipe (6) is a copper pipe, the strip-shaped protrusions on the waste heat recovery pipe (6) are also of copper structure, and the left side of the filter plate (8) is also a concave structure.

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