Low-emission gasoline engine exhaust purification device

Abstract

The utility model discloses a low-emission gasoline engine exhaust purification device which comprises a purifier shell, the purifier shell is of a hollow cylindrical structure, a fixing cylinder is installed on the inner wall of the purifier shell, and an oxidation-reduction catalyst is detachably arranged on the inner wall of the fixing cylinder; the fixing rings are symmetrically mounted on the inner wall of the purifier shell, and the two fixing rings are located on the two sides of the oxidation-reduction catalyst; the filter screen is detachably arranged on the fixing ring; the reinforcing component has the advantages that when the filter screen is installed, the filter screen is taken up, the inserting block is inserted into the inserting groove, the clamping block is extruded when the inserting block is inserted, the spring is extruded after the clamping block is extruded, the spring is reset after being extruded, the clamping block is driven to be clamped in the clamping groove, and the installed filter screen is reinforced; and when the blocked filter screen needs to be disassembled, the filter screen can be disassembled by pulling out, so that the filter screen can be quickly disassembled and replaced, and the maintenance efficiency and the purification performance of the purifier are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the engine exhaust purification technical field, concretely relates to low emission gasoline engine exhaust purification device. BACKGROUND

[0002] The gasoline engine produces various pollutants such as carbon monoxide, hydrocarbons and nitrogen oxides in the combustion process, which are harmful to the environment and human health. Therefore, purification measures need to be taken to reduce the emission of these pollutants. The automobile exhaust tail purifier is a device specially used for purifying automobile exhaust emission.

[0003] The patent with the publication number CN216240871U discloses an automobile exhaust tail purifier, which comprises: a purifier shell, a combined exhaust purification structure installed on the purifier shell; the combined exhaust purification structure comprises: a pair of connecting shells, a pair of connecting flanges, a pair of gas pipes, a filter purification assembly and a pair of butt joint combination assemblies; the pair of connecting shells are installed at the opening positions on both sides of the purifier shell, the pair of connecting flanges are installed on the ports on both sides of the pair of connecting shells, and the pair of gas pipes are connected and installed on the pair of connecting shells; the filter purification assembly comprises: a pair of first mounting racks, a pair of first filter screens, a pair of second mounting racks, a pair of second filter screens and a redox catalyst; the pair of first mounting racks are installed at the outer side positions of the inner walls of the pair of connecting shells, the pair of first filter screens are installed on the pair of first mounting racks, the pair of second mounting racks are installed at the inner side positions of the pair of first mounting racks, the pair of second filter screens are installed on the pair of second mounting racks, and the redox catalyst is installed on the inner wall of the purifier shell.

[0004] In actual use, the filter screen as a vulnerable part has increasingly prominent clogging problems. Because the filter screen is exposed to a high-temperature and highly corrosive exhaust environment for a long time, impurities such as dust and oil stains are easily accumulated on the surface of the filter screen, causing the filter holes to be clogged, and further affecting the filtering performance and catalytic efficiency of the purifier. The existing filter screen assembly method is often relatively complex, which is not conducive to quick disassembly and replacement. Once the filter screen is severely clogged, a large amount of time and effort is needed to disassemble and clean it, which not only increases the maintenance cost but also may affect the normal use of the vehicle. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide low emission gasoline engine exhaust purification device, realizes quick disassembly and replacement of filter screen.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: low emission gasoline engine exhaust purification device, comprising

[0007] The purifier shell is a hollow cylindrical structure, and a fixing cylinder is arranged on the inner wall of the purifier shell, and a redox catalyst is detachably arranged on the inner wall of the fixing cylinder;

[0008] The fixing ring is symmetrically arranged on the inner wall of the purifier shell, and two fixing rings are arranged on the two sides of the redox catalyst;

[0009] The filter screen is detachably arranged on the fixing ring, and a reinforcing component is arranged on the filter screen and the fixing ring, the reinforcing component comprises a plug block arranged at one end of the filter screen, a clamping groove arranged on the side surface of the plug block, a plug slot arranged at one end of the fixing ring for inserting the plug block, a base arranged on the inner side of the plug slot, a groove arranged on the base, a spring arranged at the bottom of the groove, and a clamping block arranged at one end of the spring and connected with the clamping groove.

[0010] Preferably, ribs are symmetrically arranged on the plug slot, and the plug block abuts against the two ribs when the plug block is inserted into the plug slot.

[0011] Preferably, a plurality of balls are arranged on the inner side of the groove, and an extension piece is arranged on the clamping block.

[0012] Preferably, a convex handle is arranged at the other end of the filter screen, and the convex handle is a T-shaped structure.

[0013] Preferably, fastening ears are symmetrically arranged on the redox catalyst, and the fastening ears are connected with the fixing cylinder.

[0014] Preferably, a first flange plate is symmetrically arranged at one end of the purifier shell, and a second flange plate is connected with the first flange plate.

[0015] Preferably, a gas conveying pipe is connected with the second flange plate, and the second flange plate and the first flange plate are connected by bolts.

[0016] Compared with the prior art, the purifier has the advantages that:

[0017] When the filter screen is installed, the plug block is inserted into the plug slot, the clamping block is extruded when the plug block is inserted, the clamping block is extruded to extrude the spring, the spring is reset after being extruded, the clamping block is clamped in the clamping groove, the installed filter screen is reinforced, the filter screen can be pulled out when it is needed to be disassembled, the filter screen can be quickly disassembled and replaced, and the maintenance efficiency and the purification performance of the purifier are improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The figure is a structural schematic view of the purifier;

[0019] Figure 2The utility model discloses a purifier shell sectional structure schematic diagram.

[0020] Figure 3 The utility model discloses a purifier shell sectional structure schematic diagram. Figure 2 The utility model discloses a purifier shell sectional structure schematic diagram.

[0021] Figure 4 The utility model discloses a purifier shell sectional structure schematic diagram. Figure 3 The utility model discloses a purifier shell sectional structure schematic diagram.

[0022] In the drawing: 1, purifier shell;2, first flange plate;3, second flange plate;4, gas conveying pipe;5, fixed cylinder;6, oxidation reduction catalyst;61, fastening lug;7, fixed ring;71, insertion slot;710, rib block;8, filter screen;81, convex handle;82, insertion block;820, clamping groove;9, base;91, recess;910, spring;911, ball;10, clamping block;100, extension piece. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the utility model.

[0024] Embodiment 1

[0025] Please refer to Figures 1-4 The utility model discloses a first embodiment, and this embodiment provides a low emission gasoline engine exhaust purification device, which comprises

[0026] The purifier shell 1 is a hollow cylindrical structure, and the inner wall of the purifier shell 1 is provided with the fixed cylinder 5 through screws, so that the fixed cylinder 5 is stably installed. The inner wall of the fixed cylinder 5 is detachably provided with the oxidation reduction catalyst 6. The oxidation reduction catalyst 6 is used for reduction catalysis, so that the pollutants are decomposed into non-pollutants.

[0027] The fixed ring 7 is symmetrically installed on the inner wall of the purifier shell 1, so that the fixed ring 7 is additionally provided, and the two fixed rings 7 are located on the two sides of the oxidation reduction catalyst 6.

[0028] The filter screen 8 is detachably arranged on the fixing ring 7, and the filter screen 8 and the fixing ring 7 are provided with reinforcing components, the reinforcing components comprise an insertion block 82 arranged at one end of the filter screen 8, the insertion block 82 is added, a clamping groove 820 is arranged on the side surface of the insertion block 82, the clamping groove 820 is arranged, an insertion groove 71 is arranged at one end of the fixing ring 7 for inserting the insertion block 82, the insertion groove 71 is arranged, a base 9 is arranged on the inner side of the insertion groove 71, the base 9 is added, a recess 91 is arranged on the base 9, the recess 91 is arranged, a spring 910 is arranged at the bottom of the recess 91, a clamping block 10 is arranged at one end of the spring 910 and is clamped and connected with the clamping groove 820, when the filter screen 8 is installed, the filter screen 8 is held, the insertion block 82 is inserted into the insertion groove 71, the insertion block 82 is pressed when being inserted, the clamping block 10 is pressed after being pressed, the spring 910 is pressed, the spring 910 is reset after being pressed, the clamping block 10 is clamped in the clamping groove 820, and the installed filter screen 8 is reinforced, when the blocked filter screen 8 needs to be disassembled, the filter screen 8 can be disassembled by being pulled out, the filter screen 8 can be quickly disassembled and replaced, and the maintenance efficiency and purification performance of the purifier are improved.

[0029] In the embodiment, preferably, the rib blocks 710 are symmetrically arranged in the insertion groove 71, the insertion block 82 abuts against the two rib blocks 710 when being inserted into the insertion groove 71, and the rib blocks 710 are used for further reinforcing the insertion block 82 inserted into the insertion groove 71.

[0030] In the embodiment, preferably, the oxidation-reduction catalyst 6 is provided with the symmetrically distributed fastening ears 61, the fastening ears 61 are added, and the fastening ears 61 and the fixing cylinder 5 are connected through screws, the oxidation-reduction catalyst 6 is disassembled by splicing the fastening ears 61 and the fixing cylinder 5.

[0031] In the embodiment, preferably, the first flange plate 2 is symmetrically arranged at the end of the purifier shell 1, the first flange plate 2 is added, the second flange plate 3 is connected with the first flange plate 2 through bolts, the first flange plate 2 and the second flange plate 3 are stably spliced, the gas conveying pipe 4 is connected with the second flange plate 3, and the tail gas can be discharged into the purifier shell 1 through the gas conveying pipe 4.

[0032] Embodiment 2

[0033] Please refer to Figures 1-4 As a second embodiment of the utility model, the embodiment is based on the previous embodiment, and the difference is that:

[0034] The plurality of rolling balls 911 are installed on the inner side of the groove 91, the rolling balls 911 are added, the extension piece 100 is arranged on the clamping block 10, and the clamping block 10 drives the extension piece 100 to slide along the rolling balls 911 when the clamping block 10 moves, so that the smoothness of the clamping block 10 is increased; the other end of the filter screen 8 is provided with a convex handle 81, and the convex handle 81 is a T-shaped structure; the T-shaped convex handle 81 increases the convenience of disassembling the filter screen 8.

[0035] The working principle and use process of the utility model are as follows: when in use, the tail gas is discharged into the purifier shell 1 through the left gas conveying pipe 4, the preliminary filtration of the suspended particulate matters is carried out through the left filter screen 8, the reduction catalysis is carried out through the oxidation-reduction catalytic converter 6 after the filtration is completed, the pollutants are decomposed into non-pollutants, the re-filtration is carried out through the right filter screen 8, and finally, the tail gas is discharged from the right gas conveying pipe 4, so that the purpose of exhaust gas purification is achieved.

[0036] Although the embodiments of the utility model have been shown and described, and the detailed description is shown above, it can be understood by those skilled in the art that the embodiments can be changed, modified, replaced and changed in various ways without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A low emission gasoline engine exhaust purification device characterized by comprising: Comprising A purifier shell (1) which is a hollow cylindrical structure, and the inner wall of the purifier shell (1) is provided with a fixed cylinder (5), and the inner wall of the fixed cylinder (5) is detachably provided with a redox catalyst (6); A fixed ring (7) is symmetrically installed on the inner wall of the purifier shell (1), and the two fixed rings (7) are located on both sides of the redox catalyst (6); A filter screen (8) is detachably provided on the fixed ring (7), and the filter screen (8) and the fixed ring (7) are provided with reinforcing components, which include an insertion block (82) provided at one end of the filter screen (8), a clamping groove (820) opened on the side surface of the insertion block (82), an insertion slot (71) opened at one end of the fixed ring (7) for the insertion of the insertion block (82), a base (9) installed on the inner side of the insertion slot (71), a groove (91) opened on the base (9), a spring (910) provided at the bottom of the groove (91), and a clamping block (10) provided at one end of the spring (910) and connected with the clamping groove (820).

2. The low emission gasoline engine exhaust purification device according to claim 1, characterized by: It also includes a rib block (710) symmetrically installed on the slot opening of the insertion slot (71), and when the insertion block (82) is inserted into the interior of the insertion slot (71), the insertion block (82) abuts against the two rib blocks (710).

3. The low emission gasoline engine exhaust purification device according to claim 1, characterized by: It also includes a plurality of ball bearings (911) installed on the inner side of the groove (91), and an extension piece (100) provided on the clamping block (10).

4. The low emission gasoline engine exhaust purification device according to claim 1, characterized by: The other end of the filter screen (8) is provided with a convex handle (81), and the convex handle (81) is a "T" type structure.

5. The low emission gasoline engine exhaust purification device according to claim 1, characterized by: The redox catalyst (6) is provided with symmetrically distributed fastening ears (61), and the fastening ears (61) are connected with the fixed cylinder (5).

6. The low emission gasoline engine exhaust purification device according to claim 1, characterized by: It also includes a first flange plate (2) symmetrically provided at the end of the purifier shell (1), and a second flange plate (3) connected with the first flange plate (2).

7. The low emission gasoline engine exhaust purification device according to claim 6, characterized by: It also includes a gas conveying pipe (4) connected with the second flange plate (3), and the second flange plate (3) and the first flange plate (2) are connected by bolts. It also includes a first flange plate (2) symmetrically provided at the end of the purifier shell (1), and a second flange plate (3) connected with the first flange plate (2). It also includes a gas conveying pipe (4) connected with the second flange plate (3), and the second flange plate (3) and the first flange plate (2) are connected by bolts.

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