Automobile exhaust particle catcher

Abstract

The utility model discloses an automobile exhaust particle catcher which comprises a suspension bracket, a filter element is mounted in the cylinder body, and the cylinder body is detachably connected with the suspension bracket; one end of the air inlet pipe is connected with the exhaust pipe through a first flange set, and the other end of the air inlet pipe is connected with one end of the cylinder through a second flange set; the air outlet pipe is connected with the other end of the barrel; one end of the supporting frame is mounted on the air inlet pipe, and the other end of the supporting frame is supported on a filter element; the pressure difference sensor comprises a first pressure sensor and a second pressure sensor, the first pressure sensor is installed on the air inlet pipe, and the second pressure sensor is installed on the air outlet pipe; the temperature sensor is mounted on the air inlet pipe; and the automobile central controller is electrically connected with the first pressure sensor, the second pressure sensor and the temperature sensor. The automobile exhaust purification device has the advantages of being capable of purifying automobile exhaust and the like.

Description

Technical Field

[0001] The utility model relates to a particle capture device, in particular to an automobile exhaust particle capture device. Background Art

[0002] Cars bring a lot of convenience to travel, but when they are running, they will emit exhaust gas, which includes solid suspended particles, carbon monoxide, carbon dioxide, hydrocarbons, nitrogen oxides, lead, sulfur oxides and other pollutants. For this reason, a gasoline particulate filter (GPF) is usually installed near the end of the exhaust pipe. The GPF includes a filter element, which is used to capture particles contained in the exhaust gas and degrade harmful gases.

[0003] Most cars run on urban roads, and the speed limit on urban roads is 50 km / h. During rush hour, the speed is even slower, and sometimes there is congestion and the car cannot drive, which makes the exhaust gas produced by combustion contain more particulate matter, and the particulate matter is deposited in the GPF. The temperature condition for GPF regeneration is that the vehicle needs to drive at high speed (90-120 km / h) on the highway and maintain it for a period of time to increase the exhaust temperature, usually between 250℃ and 600℃. It can be seen that most cars cannot reach the temperature condition for GPF regeneration, causing GPF blockage.

[0004] In addition, when the quality of gasoline and lubricating oil is low, the gasoline burns incompletely, which tends to produce more polymers. Salts containing elements of lubricating oil or fuel additives (the main components are calcium salts, sulfates, zinc-containing salts and phosphates) are blocked in the GPF, causing GPF to become blocked and affecting the normal use of the vehicle.

[0005] Currently, the way to deal with GPF blockage is to dismantle the blocked gasoline engine particulate filter as a whole, and then reinstall a newly purchased gasoline engine particulate filter. Utility Model Content

[0006] The utility model aims to provide an automobile exhaust particulate trap with easy replacement of filter element in view of the defects of the prior art.

[0007] In order to achieve the above-mentioned purpose of the utility model, the following technical solutions are adopted:

[0008] A vehicle exhaust particulate trap comprises a suspension frame; a cylinder body, a filter element is installed in the cylinder body and is detachably connected to the suspension frame; an intake pipe, one end of the intake pipe is connected to the exhaust pipe through a first flange group, and the other end is connected to one end of the cylinder body through a second flange group; an outlet pipe, the outlet pipe is connected to the other end of the cylinder body; a support frame, one end of the support frame is installed on the intake pipe, and the other end is supported on the filter element; a differential pressure sensor, the differential pressure sensor comprises a first pressure sensor and a second pressure sensor, the first pressure sensor is installed on the intake pipe, and the second pressure sensor is installed on the outlet pipe; a temperature sensor, the temperature sensor is installed on the intake pipe; and a vehicle central controller, the vehicle central controller is electrically connected to the first pressure sensor, the second pressure sensor, and the temperature sensor, respectively.

[0009] Furthermore, the automobile exhaust particulate trap of the utility model further includes a muffler and a third flange group, and the muffler is connected to the exhaust pipe via the third flange group.

[0010] Furthermore, the air outlet pipe includes a second reducer and a discharge pipe, one end of the second reducer is connected to the cylinder, and the other end is connected to the discharge pipe.

[0011] Furthermore, the supporting frame includes a first fixing ring, on the circumferential surface of which a plurality of supporting rods are installed at intervals; and a limiting ring, which is spaced in parallel with the first fixing ring and connected via a plurality of fixing rods.

[0012] Furthermore, the suspension frame includes a cross bar; a vertical bar, one end of the vertical bar is connected to the cross bar, and the other end is provided with a second hoop, and the second hoop is provided with a second support; a first hoop, the first hoop and the second hoop correspond to each other, one end is movably connected to the second hoop, and the other end is provided with a first support, and the first support and the second support are fixedly connected by a second bolt; wherein, the first hoop and the second hoop clamp the cylinder.

[0013] Furthermore, the automobile exhaust particulate trap of the utility model also includes a pin shaft, the first hoop member is provided with a movable groove, one end of the movable groove is provided with a notch, the first hoop member is sleeved on the second hoop member through the notch, and is rotatably connected through the pin shaft.

[0014] Furthermore, the automobile exhaust particulate trap of the utility model further comprises a first bolt, the cross bar is provided with at least one mounting hole, and each mounting hole is correspondingly matched with a first bolt.

[0015] Furthermore, the first hoop member and the second hoop member are both semicircular arc structures.

[0016] Furthermore, the intake pipe includes a short pipe and a first reducer, one end of the short pipe is connected to the cylinder through a second flange group, the other end is connected to one end of the short pipe, and the other end of the short pipe is connected to the exhaust pipe through a first flange group.

[0017] Furthermore, the filter element is a ceramic catalyst carrier.

[0018] The present invention has the following improvements over the prior art:

[0019] The utility model can facilitate the replacement of filter elements, and overcomes the problem that the existing GPF needs to be replaced as a whole when repairing it; that is, the intake pipe and the exhaust pipe are connected by a first flange group, the intake pipe and the cylinder are connected by a second flange group, and the cylinder and the suspension frame are detachably connected; when repairing, the first flange group is disassembled, the cylinder is removed from the suspension frame, and then the second flange group is disassembled, the cylinder can be opened, the filter element is taken out, the inside of the cylinder is cleaned, and then a new filter element is put therein; then the second flange group is assembled and connected, the cylinder is installed on the suspension frame, and then the first flange group is assembled and connected, and the filter element can be replaced, avoiding the need for overall replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0021] Figure 1 This is a schematic diagram of the structure of an automobile exhaust particle trap of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the middle support frame and the filter element of the utility model;

[0023] Figure 3 It is a structural schematic diagram of the suspension frame in the utility model;

[0024] The names and serial numbers of the components in the figure are: 1-exhaust pipe, 2-first flange group, 3-short pipe, 4-first pressure sensor, 5-support top frame, 51-support rod, 52-first fixing ring, 53-fixing rod, 54-limiting ring, 6-filter element, 7-cylinder, 8-suspension frame, 81-cross bar, 82-first bolt, 83-mounting hole, 84-vertical rod, 85-first hoop, 851-movable groove, 86-through hole, 87-second bolt, 88-first support, 89-second support, 810-second hoop, 811-pin shaft, 9-second pressure sensor, 10-exhaust pipe, 11-third flange group, 12-muffler, 13-first reducer, 14-second reducer, 15-car central control, 16-second flange group, 17-temperature sensor. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution in the present application, the technical solution of the present utility model will be clearly and completely described below in conjunction with the drawings and embodiments. Obviously, the described embodiments are only part of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of the present application.

[0026] Embodiment 1:

[0027] like Figure 1-3 As shown, this embodiment is a vehicle exhaust particulate trap, including a suspension frame 8, a cylinder 7, an air intake pipe, an air outlet pipe, a support frame 5, a pressure difference sensor, a temperature sensor 17 and a vehicle central control 15. A filter element 6 is installed in the cylinder and is detachably connected to the suspension frame 8; one end of the air intake pipe is connected to the exhaust pipe 1 through the first flange group 2, and the other end is connected to one end of the cylinder 7 through the second flange group 16; the air outlet pipe is connected to the other end of the cylinder 7; one end of the support frame 5 is installed on the air intake pipe, and the other end is supported on the filter element 6; the pressure difference sensor includes a first pressure sensor 4 and a second pressure sensor 14, the first pressure sensor 4 is installed on the air intake pipe, and the second pressure sensor 9 is installed on the air outlet pipe; the temperature sensor 17 is installed on the air intake pipe; the vehicle central control 15 is electrically connected to the first pressure sensor 4, the second pressure sensor 14, and the temperature sensor 17 respectively.

[0028] It should be noted that the suspension frame is installed on the chassis of the car. The suspension frame support cylinder is installed on the chassis of the car.

[0029] The first flange set 2 includes two flanges, a high temperature resistant gasket and a plurality of bolts. One flange is installed on the exhaust pipe 1 and the other flange is installed on the intake pipe. During installation, the two flanges correspond to each other, and a high temperature resistant gasket is placed between the two flanges, and then fixedly connected with a plurality of bolts. The high temperature resistant gasket enables a sealed connection between the two flanges, thereby realizing the connection between the exhaust pipe and the intake pipe.

[0030] The first pressure sensor 4 is used to monitor the exhaust gas pressure in the intake pipe, and the second pressure sensor 9 is used to monitor the exhaust gas pressure after passing through the filter element 6. The pressure data information monitored by the first pressure sensor and the second pressure sensor is transmitted to the automobile central control unit. The automobile central control unit has a central control screen, and the central control screen can display the pressure values ​​monitored by the first pressure sensor and the second pressure sensor. At the same time, the pressure difference value between the first pressure sensor and the second pressure sensor can be displayed.

[0031] It should be noted that the pressure difference value can be pre-set on the car's central control unit. When the monitored pressure difference value reaches the set pressure difference value, the central control screen will flash "GPF is blocked and needs maintenance."

[0032] The temperature sensor 17 is used to monitor the exhaust gas temperature in the intake pipe, and transmit the monitored temperature data information to the automobile central control unit and display it on the central control screen.

[0033] like Figure 1 As shown, the air intake pipe includes a short pipe 3 and a first reducer 13. One end of the short pipe 3 is connected to the cylinder 7 through the second flange group 16, and the other end is connected to one end of the short pipe 3. The other end of the short pipe 3 is connected to the exhaust pipe 1 through the first flange group 2.

[0034] The second flange set 16 includes two flanges, a high temperature resistant gasket and a plurality of bolts. One flange is installed on the first reducer 13, and the other flange is installed on the cylinder 7. During installation, the two flanges correspond to each other, and a high temperature resistant gasket is installed between the two flanges, and then fixedly connected by a plurality of bolts. The high temperature resistant gasket enables the two flanges to be airtightly connected, thereby realizing the connection between the intake pipe and the cylinder 7.

[0035] It should be noted that the filter element 6 is a ceramic catalyst carrier. The ceramic catalyst carrier can be a honeycomb ceramic catalyst carrier. The honeycomb ceramic catalyst carrier is used as a straight-through ceramic catalyst carrier in the gasoline engine exhaust purification system. The catalyst is coated on the carrier surface to improve the catalyst performance. When the automobile exhaust passes through, the capillary pores of the honeycomb ceramic wall can filter particulate matter (that is, can filter fine particulate emission substances), and at the same time, harmful components such as hydrocarbons, nitrogen oxides, and carbon monoxide in the exhaust gas are converted into harmless components.

[0036] In order to further reduce noise, a muffler 12 and a third flange group 11 are additionally installed. Figure 1As shown, the muffler 12 is connected to the air outlet pipe via the third flange group 11 .

[0037] The gas outlet pipe includes a second reducer 14 and a discharge pipe 10 . One end of the second reducer 14 is connected to the cylinder 7 , and the other end is connected to the discharge pipe 10 .

[0038] The third flange group 11 includes two flanges, a high temperature resistant gasket and a plurality of bolts. One of the flanges is installed on the discharge pipe 10, and the other flange is installed on the muffler 12. During installation, the two flanges correspond to each other, and a high temperature resistant gasket is installed between the two flanges, and then fixedly connected by a plurality of bolts. The high temperature resistant gasket enables the two flanges to be airtightly connected, thereby realizing the connection between the exhaust pipe and the muffler. The muffler can further muffle the exhaust gas transported into it by the discharge pipe when it is discharged to the outside, which can greatly reduce the sound of exhaust gas emissions.

[0039] In some embodiments of the present disclosure, a structure of a supporting frame is provided. Figure 1 and 2 As shown, the support frame 5 includes a first fixing ring 52 and a limiting ring 54. A plurality of support rods 51 are installed at intervals on the circumferential surface of the first fixing ring 52; the limiting ring 54 is parallel to the first fixing ring 52 and is connected by a plurality of fixing rods 53.

[0040] The support frame is installed on the first reducer 13 of the air inlet pipe. When the first reducer 13 is installed on the cylinder 7 through the second flange group 16, the support frame is inserted into the cylinder 7 and supported on the filter element 6. The support of the filter element 6 on the support frame 5 can prevent the filter element from moving in the cylinder 7, thereby preventing the filter element from moving and colliding to cause the channel deformation, affecting the performance of ventilation and capturing particles.

[0041] In some embodiments of the present disclosure, a structure of a suspension frame is provided. Figure 1 , 3 As shown, the suspension frame includes a cross bar 81, a vertical bar 84 and a first hoop 85. One end of the vertical bar 84 is connected to the cross bar 81, and the other end is provided with a second hoop 810, and the second hoop 810 is provided with a second support 89; the first hoop 85 corresponds to the second hoop 810, one end is movably connected to the second hoop 810, and the other end is provided with a first support 88, and the first support 88 and the second support 89 are fixedly connected by a second bolt 87; the first hoop 85 and the second hoop 810 clamp the cylinder 7.

[0042] The crossbar 81 is provided with at least one mounting hole 83, and each mounting hole 83 is correspondingly connected with a first bolt 82. The number of mounting holes can be 1, 2 or 3, and correspondingly, the number of first bolts can be 1, 2 or 3.

[0043] It should be noted that corresponding screw holes are provided at corresponding installation positions of the automobile chassis corresponding to the installation holes on the crossbar. During installation, the installation holes on the crossbar are aligned with the screw holes on the automobile chassis, and the first bolts are passed through the installation holes and threadedly connected with the screw holes.

[0044] The first hoop member 85 and the second hoop member 810 are both semicircular arc structures. The two ends of the first hoop member 85 and the second hoop member 810 are butted together to form a through hole 86 .

[0045] A connection structure between the first hoop member 85 and the second hoop member 810 is provided, and a pin shaft 811 is additionally installed. Figure 3 As shown, the first hoop member 85 is provided with a movable groove 851 , one end of the movable groove 851 is provided with a notch, the first hoop member 85 is sleeved on the second hoop member 810 through the notch, and is rotatably connected via a pin shaft 811 .

[0046] The first hoop 85 can swing relative to the vertical rod 84 by means of the movable groove 851. During the swinging process, the first hoop is sleeved on the vertical rod through the movable groove to swing. Thus, the first hoop 85 and the second hoop 810 can be swung open, the cylinder 7 can be separated from the hanging frame 8, and the cylinder and the hanging frame can be detachably connected.

[0047] According to the above embodiments, the working mode of the utility model is as follows:

[0048] If the message "GPF is clogged and needs repair" flashes on the car's central control screen, the filter element 6 should be replaced and repaired.

[0049] Lift the car to a suitable height so that the maintenance personnel can stand under the chassis of the car. First, remove the data cables connected to the temperature sensor 17, the first pressure sensor 4 and the second pressure sensor 9, and then disassemble the first flange group 2 between the short pipe 3 and the exhaust pipe 1 to disconnect the short pipe 3 from the exhaust pipe 1. Then, tighten the second bolt 87 on the suspension bracket 8, remove the second bolt 87 from the first support 88 and the second support 89, support the cylinder 7, and then swing the first hoop 85 upward until the cylinder can be removed from the first hoop 85 and the second hoop 810.

[0050] After taking out the cylinder 7, place it on a clean operating table, and then disassemble the second flange group 16. After the two flange plates of the second flange group 16 are separated, the air intake pipe, the support frame 5 and the cylinder 7 can be disassembled, and the filter element 6 can be taken out. Clean the short tube 3, the first reducer 13 and the cylinder 7, and then replace the new filter element in the cylinder; then reassemble and connect the second flange group 16, and then install the cylinder 7 on the suspension frame 8. Then, reassemble and connect the first flange group 2, and connect the temperature sensor 17, the first pressure sensor 4 and the second pressure sensor 9 accordingly, and then the filter element can be replaced to solve the blockage problem.

[0051] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. An automobile exhaust particulate trap, characterized in that: include Suspension frame (8); A cylinder (7), in which a filter element (6) is installed and which is detachably connected to the suspension frame (8); An air intake pipe, one end of which is connected to the exhaust pipe (1) via a first flange group (2), and the other end of which is connected to one end of the cylinder (7) via a second flange group (16); An air outlet pipe connected to the other end of the cylinder (7); A supporting frame (5), one end of the supporting frame (5) is mounted on the air inlet pipe, and the other end is supported on the filter element (6); A pressure difference sensor, the pressure difference sensor comprising a first pressure sensor (4) and a second pressure sensor (9), the first pressure sensor (4) being installed on the air inlet pipe, and the second pressure sensor (9) being installed on the air outlet pipe; A temperature sensor (17), the temperature sensor (17) being installed on the air intake pipe; as well as A car central controller (15), wherein the car central controller (15) is electrically connected to a first pressure sensor (4), a second pressure sensor (9), and a temperature sensor (17), respectively.

2. The automobile exhaust particulate trap according to claim 1, characterized in that: It also comprises a muffler (12) and a third flange group (11), wherein the muffler (12) and the air outlet pipe are connected via the third flange group (11).

3. The automobile exhaust particulate trap according to claim 1 or 2, characterized in that: The gas outlet pipe comprises a second reducer (14) and a discharge pipe (10); one end of the second reducer (14) is connected to the cylinder (7), and the other end is connected to the discharge pipe (10).

4. The automobile exhaust particulate trap according to claim 1, characterized in that: The supporting frame (5) comprises A first fixing ring (52), wherein a plurality of supporting rods (51) are installed at intervals on a circumferential surface of the first fixing ring (52); and A limiting ring (54) is arranged in parallel and spaced apart from the first fixing ring (52) and is connected via a plurality of fixing rods (53).

5. The automobile exhaust particulate trap according to claim 1, 2 or 4, characterized in that: The suspension frame includes a crossbar (81); A vertical rod (84), one end of which is connected to the horizontal rod (81), and the other end of which is provided with a second hoop (810), wherein the second hoop (810) is provided with a second support (89); A first hoop member (85), the first hoop member (85) and the second hoop member (810) correspond to each other, one end of the first hoop member is movably connected to the second hoop member (810), and the other end is provided with a first support (88), and the first support (88) and the second support (89) are fixedly connected by a second bolt (87); Wherein, the first hoop member (85) and the second hoop member (810) clamp the cylinder (7).

6. The automobile exhaust particulate trap according to claim 5, characterized in that: The invention also comprises a pin shaft (811), the first hoop member (85) is provided with a movable groove (851), one end of the movable groove (851) is provided with a notch, the first hoop member (85) is sleeved on the second hoop member (810) through the notch, and is rotatably connected via the pin shaft (811).

7. The automobile exhaust particulate trap according to claim 5, characterized in that: It also includes a first bolt (82), the crossbar (81) is provided with at least one mounting hole (83), and each mounting hole (83) is correspondingly connected with a first bolt (82).

8. The automobile exhaust particulate trap according to claim 5, characterized in that: The first hoop member (85) and the second hoop member (810) are both semicircular arc structures.

9. The automobile exhaust particulate trap according to claim 1, characterized in that: The air intake pipe comprises a short pipe (3) and a first reducer (13); one end of the short pipe (3) is connected to the cylinder (7) via a second flange group (16), and the other end is connected to one end of the short pipe (3); the other end of the short pipe (3) is connected to the exhaust pipe (1) via a first flange group (2).

10. The automobile exhaust particulate trap according to claim 1, characterized in that: The filter element (6) is a ceramic catalyst carrier.

Images