Diesel vehicle metal particle trap

Abstract

The utility model relates to a diesel vehicle metal particle trap which comprises a trap body, the whole trap body is of a barrel-shaped structure, one end of the trap body is of an open structure, the side wall of the trap body is a filtering part, and the filtering part comprises at least one layer of metal filter screen structure. The diesel vehicle tail gas collector is reasonable in structural design, the collector body is optimally designed, the pressure relief assembly is arranged, so that the diesel vehicle tail gas can be treated through the metal filter screen, the metal filter screen can incinerate fuel oil ash and particulate matter at a high temperature while collecting particles, and the tail gas can be recycled. Meanwhile, emergency exhaust under the condition that the trap body is blocked is achieved through the pressure relief assembly, the dynamic property and economical efficiency of the diesel engine are guaranteed, and the device has the advantages of being ingenious and simple in design, convenient to use, safe and environmentally friendly.

Description

Technical Field

[0001] This utility model relates to the field of vehicle exhaust gas treatment equipment, and in particular to a diesel vehicle metal particulate filter. Background Technology

[0002] With the promulgation and implementation of the China VI emission standard, higher requirements have been placed on reducing particulate matter emissions from diesel engines.

[0003] Particulate filters are the most effective technology for reducing particulate emissions from diesel engines. They can capture particulate matter in exhaust gases, but as the amount of particulate matter captured increases, fuel ash and particulate matter gradually deposit on the particulate filter carrier, which can lead to obstruction of diesel engine exhaust, increased exhaust back pressure, and reduced particulate filter efficiency. This, in turn, reduces the power and economy of the diesel engine. Since fuel ash and particulate matter cannot be removed while driving, the particulate filter needs to be regenerated while parked, which affects the overall vehicle efficiency and has high regeneration costs. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a diesel vehicle metal particulate filter that can effectively capture particulate matter in exhaust gases and is easy to clean and maintain.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A diesel vehicle metal particulate trap includes a trap body, characterized in that: the trap body is generally barrel-shaped with one end open, and the side wall of the trap body is a filter section, the filter section including at least one layer of metal filter mesh structure.

[0007] The filtration section includes three layers of metal filter screens.

[0008] The metal filter screen is made of 316L stainless steel.

[0009] The pore size of the metal filter is 5-10 micrometers.

[0010] The inner side of the filter section is also provided with a support layer, which adopts a perforated plate structure.

[0011] Fasteners are also provided on the outer sidewall of the filter section, and the fasteners are ring-shaped and wrapped around the surface of the filter section.

[0012] It also includes a pressure relief assembly, which is installed on the trap body and is used to connect the inside and outside of the trap body in a pressure-relieved state.

[0013] The pressure relief assembly has a through hole on its side wall and communicates with the inside of the trap body. The pressure relief assembly has a pressure relief port that communicates with the outside of the trap body, and the pressure relief assembly has a pressure relief plate that seals the pressure relief port inside. The inner side of the pressure relief plate is pressed and sealed by an elastic element.

[0014] Both ends of the trap body are provided with end plates, and the end of the filter part is connected and fixed to the end plate. The edge of the end plate is also provided with a surrounding plate that is connected and fixed thereto, and the surrounding plate wraps around the outside of the filter part.

[0015] The diameter of the end plate located at one open end of the trap body is larger than that of the filter section, and the outer edge of the end plate forms a flange section.

[0016] The beneficial effects of this utility model are: reasonable structural design, optimized design of the filter body and equipped with pressure relief components, which allows it to treat diesel vehicle exhaust through the metal filter screen. The metal filter screen can also incinerate fuel ash and particulate matter at high temperature while capturing particles. At the same time, the pressure relief components realize emergency exhaust in the case of blockage of the filter body, ensuring the power and economy of the diesel engine. It has the advantages of ingenious design, convenient use and safety and environmental protection.

[0017] The filter section, based on a metal mesh structure, can achieve its cleaning effect through ordinary washing when saturated, which allows the driver to operate it anytime and anywhere, meeting the needs of vehicle operation. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a structural schematic diagram of the present invention (a cross-sectional view of the pressure relief component).

[0021] Figure 3 yes Figure 2 A schematic diagram of the cross-sectional structure of "AA" in the middle.

[0022] Figure 4 This is a cross-sectional structural diagram of the pressure relief assembly.

[0023] In the diagram: 100 Filter section, 101 Support layer, 102 Metal filter screen, 200 End plate, 201 Enclosure plate, 202 First flange section, 300 Pressure relief assembly, 301 Housing, 302 Through hole, 303 Elastic element, 304 Pressure relief plate, 305 Pressure plate, 306 Pressure relief port, 307 Second flange section, 400 Fastener. Detailed Implementation

[0024] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0025] according to Figures 1 to 4 As shown: This embodiment provides a diesel vehicle metal particulate trap, including a trap body. The trap body is generally barrel-shaped and includes end plates 200 at both ends and a filter section 100 between the two sets of end plates 200. One set of end plates 200 is an open structure, and the other end plate 200 is a closed structure. A pressure relief assembly 300 is also assembled on the set of end plates 200. The specific implementation structure of the above-mentioned components is as follows.

[0026] The filter section 100 forms the sidewall of the circumferential surface of the trap body. The filter section 100 includes an inner support layer 101, a central metal filter screen 102, and an outer fastener 400, wherein:

[0027] The support layer 101 adopts a perforated plate structure to allow for normal flow of exhaust gas, while also having a certain structural strength. Its two ends abut against the corresponding end plates 200, forming an outward support effect on the inner side of the filter section 100.

[0028] The filter section 100 includes three layers of metal filter screens 102, all made of 316L stainless steel. To optimize the arrangement of the metal filter screens 102, they are folded into a wavy shape before assembly, providing a larger surface area for particle capture. The pore size of the metal filter screens 102 is 5-10 micrometers, sufficient for particle capture in general diesel engine exhaust. For special applications, a corresponding pore size can be selected. During use, the metal filter screens 102 can absorb heat and heat up on their own, utilizing their high-temperature resistance and thermal conductivity to maintain a high temperature, which facilitates the high-temperature combustion of fuel ash and particulate matter. Furthermore, if the metal filter screens 102 become clogged, they can be cleaned with water.

[0029] The fastener 400 is a 2cm wide metal strip. The fastener 400 is horizontally distributed and wraps around the outer surface of the entire filter part 100. The two ends of the fastener 400 are welded together to ensure its wrapping and fixing effect. When the height of the filter part 100 is high, multiple sets of fasteners 400 can be set.

[0030] The pressure relief assembly 300 is installed on the end plate 200 of the trap body, specifically as follows:

[0031] An installation hole is provided on the end plate 200. The housing 301 of the pressure relief assembly 300 is embedded in the installation hole, so that the housing 301 is located inside the pressure relief assembly 300. At the same time, a second flange 307 is provided on the edge of the pressure relief port 306 of the housing 301. The second flange 307 is installed on the outside of the installation hole, so that the pressure relief port 306 communicates with the outside of the trap body. At the same time, a pressure plate 305 is also provided on the outside of the second flange 307 and installed together with it. The pressure plate 305 adopts an annular panel. The diameter of the opening in the middle of the pressure plate 305 is slightly smaller than that of the opening of the housing 301. At this time, the pressure plate 305 and the second flange 307 are fixed to the end plate 200 by bolts, and the housing 301 is installed and fixed.

[0032] An elastic element 303 and a pressure relief plate 304 are respectively installed inside the housing 301. The pressure relief plate 304 is located near the opening of the housing 301. The edge of the pressure relief plate 304 abuts against the inner wall of the housing 301, and the outer edge of the pressure relief plate 304 abuts against the pressure plate 305. The elastic element 303 is a spring, which is compressed inside the housing 301 and pushes the pressure relief plate 304 outward, so that the pressure relief plate 304 seals the pressure relief port 306.

[0033] Meanwhile, since the housing 301 is embedded inside the trap body, and several through holes 302 are provided on the side wall of the housing 301, the housing 301 is also connected to the inside of the trap body. When the external pressure of the trap body is too high, that is, when the exhaust gas emission of the diesel engine is too high, the pressure relief plate 304 will move into the housing 301 under pressure. During the movement, the inside and outside of the trap body are connected through the through holes 302 and the pressure relief hole. At this time, the equipment pressure can be reduced to avoid safety risks caused by excessive pressure, and also to prevent excessive pressure from affecting the operation of the diesel engine. When the external pressure disappears, the pressure relief plate 304 can be reset under the action of the elastic element 303 and seal the pressure relief port 306.

[0034] The end of the filter section 100 is connected and fixed to the end plate 200, which can be done by welding or other sealed connection methods. In order to better limit the outer side of the filter section 100, a surrounding plate 201 is also provided on the edge of the end plate 200 and connected and fixed thereto. The surrounding plate 201 is set perpendicular to the end plate 200, so that the surrounding plate 201 wraps around the outer side of the filter section 100 for fixation and limitation. At the same time, the diameter of the end plate 200 located at the open end of the trap body is larger than that of the filter section 100, and the outer edge of the end plate 200 forms a first flange 202, which is used for the installation and fixation of the trap body.

[0035] The above description is only a preferred embodiment of the present utility model. Any technical solution that achieves the purpose of the present utility model by essentially the same means shall fall within the protection scope of the present utility model.

Claims

1. A diesel vehicle particulate matter trap, comprising a trap body, characterized in that: The trap body is a barrel-shaped structure with an open end, and the side wall of the trap body is a filter section, which includes at least one layer of metal filter mesh structure. It also includes a pressure relief assembly, which is installed on the trap body and is used to connect the inside and outside of the trap body in a pressure-relieved state; The pressure relief assembly has a through hole on its side wall and communicates with the inside of the trap body. The pressure relief assembly has a pressure relief port that communicates with the outside of the trap body, and the pressure relief assembly has a pressure relief plate that seals the pressure relief port inside. The inner side of the pressure relief plate is pressed and sealed by an elastic element.

2. The diesel vehicle metal particulate filter according to claim 1, characterized in that: The filtration section includes three layers of metal filter screens.

3. The diesel vehicle metal particulate filter according to claim 1 or 2, characterized in that: The metal filter screen is made of 316L stainless steel.

4. The diesel vehicle metal particulate filter according to claim 1 or 2, characterized in that: The pore size of the metal filter is 5-10 micrometers.

5. The diesel vehicle metal particulate filter according to claim 1, characterized in that: The inner side of the filter section is also provided with a support layer, which adopts a perforated plate structure.

6. The diesel vehicle metal particulate filter according to claim 1 or 5, characterized in that: Fasteners are also provided on the outer sidewall of the filter section, and the fasteners are ring-shaped and wrapped around the surface of the filter section.

7. The diesel vehicle metal particulate filter according to claim 1, characterized in that: Both ends of the trap body are provided with end plates, and the end of the filter part is connected and fixed to the end plate. The edge of the end plate is also provided with a surrounding plate that is connected and fixed thereto, and the surrounding plate wraps around the outside of the filter part.

8. The diesel vehicle metal particulate filter according to claim 7, characterized in that: The diameter of the end plate located at one open end of the trap body is larger than that of the filter section, and the outer edge of the end plate forms a flange section.

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