A diesel engine exhaust gas stream disperser

Abstract

The utility model discloses a diesel engine tail gas airflow disperser, apply in diesel engine field, the utility model discloses a tail gas from the air inlet pipe enters through the shunt pipe, and the flow sensor detects the tail gas flow in the shunt pipe, according to the detection result, the opening of electric valve is adjusted, makes airflow dispersion even, then again after the air outlet pipe spouts, airflow disperses again, finally after airflow uniform distribution board, disperses again, three -stage dispersion common effect, thereby reach the purpose that dispersion effect is good, guarantee the effect of later -stage processing, improved practicality, the utility model discloses the mode of the card joint and the pressing plate are separated carding through the card joint of pressing, open the pressing plate, make the ring and the hook loose, open the first casing or third casing, take out the filter screen or airflow uniform distribution board, carry out the maintenance, can reach the purpose that the maintenance is convenient, reduces the work load, improves the maintenance efficiency.

Description

Technical Field

[0001] This utility model relates to the field of diesel engines, and in particular to a diesel engine exhaust gas diffuser. Background Technology

[0002] With the rapid development of the global economy, diesel engines, as an important power source, are widely used in transportation, construction machinery, agricultural machinery, generator sets, and many other fields. However, diesel engines produce a large amount of exhaust emissions during operation, which require exhaust gas treatment devices. To address the problem of low purification efficiency caused by uneven airflow distribution, an airflow diffuser is installed between the exhaust port and the purification device.

[0003] Existing airflow diffusers have poor dispersion effects. Generally, airflow diffusers disperse airflow through an airflow distribution plate. However, relying solely on an airflow distribution plate results in poor dispersion, affecting subsequent purification effects. They are also inconvenient to use and maintain. Typically, the airflow distribution plate is installed inside the diffuser, and the diffuser housing is fixed with multiple bolts. During maintenance, tools are required to open it, making disassembly and assembly cumbersome, increasing workload, and reducing maintenance efficiency. To solve the above problems, we propose a diesel engine exhaust airflow diffuser. Utility Model Content

[0004] The purpose of this invention is to provide a diesel engine exhaust gas diffuser, which has the advantages of good dispersion effect and easy maintenance of the airflow distribution plate.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a diesel engine exhaust gas diffuser, comprising a first housing, an intake pipe connected to the left side of the first housing, a second housing disposed on the right side of the first housing, a plurality of diverter pipes connected to the surface of the second housing, an electric valve connected to the surface of the diverter pipes, a flow sensor fixedly sleeved on the inner wall of the diverter pipes, a third housing fixedly sleeved on the surface of the diverter pipes, a fourth housing disposed on the right side of the third housing, an airflow distribution plate disposed between the third housing and the fourth housing, a diverter shell connected to the right end of the diverter pipes, and a plurality of exhaust pipes connected to the surface of the diverter shell.

[0006] By adopting the above technical solution, the exhaust gas enters through the intake pipe and passes through the diversion pipe. The flow sensor detects the exhaust gas flow rate in the diversion pipe. Based on the detection result, the opening of the electric valve is adjusted to make the airflow evenly dispersed. Then, the exhaust gas is sprayed out through the outlet pipe, which disperses the airflow again. Finally, the exhaust gas passes through the airflow distribution plate and is dispersed again. The three-stage dispersion works together to achieve a good dispersion effect, ensuring the effect of subsequent treatment and improving practicality.

[0007] The present invention is further configured such that: multiple fixing blocks are bolted to the surfaces of the first housing and the third housing; a pressure plate is rotatably connected to the surface of the fixing block; a hanging ring is rotatably connected to the surface of the pressure plate; hooks are bolted to the surfaces of the second housing and the fourth housing, and the hooks and hanging rings overlap; and anti-loosening mechanisms are provided on the surfaces of the first housing and the third housing.

[0008] By adopting the above technical solution, the clamp is disengaged from the pressure plate by pressing the clamp connector, the pressure plate is opened, the hanging ring and hook are released, the first or third housing is opened, and the filter screen or airflow distribution plate is taken out for maintenance. This method can facilitate maintenance, reduce workload, and improve maintenance efficiency.

[0009] The present invention is further configured such that: the anti-loosening mechanism includes a fixing rod, the fixing rod is disposed through the inner wall of the pressure plate, the inner wall of the fixing rod is slidably sleeved with two snap-fit ​​joints, and the snap-fit ​​joints are snapped with the surface of the pressure plate, and a spring is disposed between the two snap-fit ​​joints.

[0010] By adopting the above technical solution, the pressure plate is prevented from loosening by setting an anti-loosening mechanism, thereby improving stability.

[0011] The present invention is further configured such that a filter screen is provided between the inner walls of the first shell and the second shell.

[0012] By adopting the above technical solution, the exhaust gas is filtered by setting up a filter screen.

[0013] The present invention is further configured such that: both the inner walls of the first shell and the second shell are embedded with sealing gaskets.

[0014] By adopting the above technical solution, the sealing performance is improved and air leakage is prevented by setting a sealing gasket.

[0015] The present invention is further configured such that flanges are fixedly fitted onto the surfaces of both the air intake pipe and the fourth housing.

[0016] The above technical solution, with the addition of flanges, facilitates installation.

[0017] The present invention is further configured such that the shape of the card connector is wedge-shaped.

[0018] By adopting the above technical solution, the shape of the clamp connector is set to wedge shape, which facilitates the fixing of the pressure plate.

[0019] The present invention is further configured such that: positioning rods are bolted to the surfaces of the second housing and the fourth housing, and the positioning rods are slidably sleeved with the inner walls of the first housing and the third housing.

[0020] By adopting the above technical solution and setting a positioning rod, positioning is facilitated and installation is convenient.

[0021] In summary, this utility model has the following beneficial effects:

[0022] 1. This utility model uses exhaust gas to enter through the intake pipe and pass through the diversion pipe. The flow sensor detects the exhaust gas flow rate in the diversion pipe. Based on the detection result, the opening of the electric valve is adjusted to make the airflow evenly dispersed. Then, the exhaust gas is sprayed out through the outlet pipe, which disperses the airflow again. Finally, the exhaust gas passes through the airflow distribution plate and disperses it again. The three-stage dispersion works together to achieve a good dispersion effect, ensuring the effect of subsequent treatment and improving practicality.

[0023] 2. This utility model allows for easy maintenance by pressing the snap-fit ​​connector to disengage it from the pressure plate, opening the pressure plate, releasing the hanging ring and hook, opening the first or third housing, and removing the filter screen or airflow distribution plate. This method facilitates maintenance, reduces workload, and improves maintenance efficiency. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural view of the present invention;

[0025] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0026] Figure 3 This is a partial three-dimensional structural view of the present invention;

[0027] Figure 4 This is a three-dimensional structural view of the anti-loosening mechanism of this utility model;

[0028] Figure 5 This is a partial three-dimensional structural view of the present invention;

[0029] Figure 6 This is a utility model Figure 2 Enlarged view of the structure at point A in the middle.

[0030] Reference numerals: 1. First housing; 2. Inlet pipe; 3. Second housing; 4. Diverter pipe; 5. Electric valve; 6. Flow sensor; 7. Third housing; 8. Fourth housing; 9. Airflow distribution plate; 10. Diverter shell; 11. Outlet pipe; 12. Fixing block; 13. Pressure plate; 14. Hanging ring; 15. Hook; 16. Anti-loosening mechanism; 17. Fixing rod; 18. Snap connector; 19. Spring; 20. Filter screen; 21. Sealing gasket; 22. Flange; 23. Positioning rod. Detailed Implementation

[0031] The present invention will be further described in detail below with reference to the accompanying drawings.

[0032] Example 1:

[0033] refer to Figure 1 , Figure 2 and Figure 3 A diesel engine exhaust gas diffuser includes a first housing 1, an intake pipe 2 connected to the left side of the first housing 1, a second housing 3 located on the right side of the first housing 1, multiple diverter pipes 4 connected to the surface of the second housing 3, electric valves 5 (Z941Y-16V type electric high-temperature valve from Shanghai Valve Factory Co., Ltd.) connected to the surface of the diverter pipes 4, flow sensors 6 (Honeywell AWM3300V type flow sensors) fixedly sleeved on the inner wall of the diverter pipes 4, a third housing 7 fixedly sleeved on the surface of the diverter pipes 4, and a fourth housing 8 located on the right side of the third housing 7. An airflow distribution plate 9 is provided between the third housing 7 and the fourth housing 8. The right end of the diversion pipe 4 is connected to a diversion shell 10. Multiple air outlet pipes 11 are connected to the surface of the diversion shell 10. The exhaust gas enters from the inlet pipe 2 and passes through the diversion pipe 4. The flow sensor 6 detects the exhaust gas flow rate in the diversion pipe 4. Based on the detection result, the opening of the electric valve 5 is adjusted to make the airflow evenly dispersed. Then, the airflow is sprayed out through the air outlet pipes 11, which disperses the airflow again. Finally, it passes through the airflow distribution plate 9 and disperses it again. The three-stage dispersion works together to achieve a good dispersion effect, ensuring the effect of subsequent treatment and improving practicality.

[0034] refer to Figure 2 A filter screen 20 is provided between the inner walls of the first housing 1 and the second housing 3 to filter the exhaust gas.

[0035] refer to Figure 1 and Figure 2 Flanges 22 are fixedly fitted onto the surfaces of both the intake pipe 2 and the fourth housing 8, which facilitates installation.

[0036] refer to Figure 6 Positioning rods 23 are bolted to the surfaces of the second housing 3 and the fourth housing 8, and the positioning rods 23 are slidably sleeved with the inner walls of the first housing 1 and the third housing 7. The positioning rods 23 facilitate positioning and installation.

[0037] Example 2:

[0038] refer to Figure 1 , Figure 2 , Figure 5 and Figure 6Multiple fixing blocks 12 are bolted to the surfaces of the first housing 1 and the third housing 7. A pressure plate 13 is rotatably connected to the surface of the fixing block 12. A hanging ring 14 is rotatably connected to the surface of the pressure plate 13. Hooks 15 are bolted to the surfaces of the second housing 3 and the fourth housing 8, and the hooks 15 and the hanging rings 14 overlap. Anti-loosening mechanisms 16 are provided on the surfaces of the first housing 1 and the third housing 7. By pressing the locking connector 18, the locking connector 18 is disengaged from the pressure plate 13, the pressure plate 13 is opened, and the hanging rings 14 and hooks 15 are released. The first housing 1 or the third housing 7 can be opened, and the filter screen 20 or the airflow distribution plate 9 can be taken out for maintenance. This method can facilitate maintenance, reduce workload, and improve maintenance efficiency.

[0039] Referring to the figure, the anti-loosening mechanism 16 includes a fixing rod 17, which is through the inner wall of the pressure plate 13. Two snap-fit ​​connectors 18 are slidably sleeved on the inner wall of the fixing rod 17, and the snap-fit ​​connectors 18 are snapped onto the surface of the pressure plate 13. A spring 19 is provided between the two snap-fit ​​connectors 18. By setting the anti-loosening mechanism 16, the pressure plate 13 is prevented from loosening, thus improving stability.

[0040] refer to Figure 4 Both the inner walls of the first housing 1 and the second housing 3 are embedded with sealing gaskets 21. By setting the sealing gaskets 21, the sealing performance is improved and air leakage is prevented.

[0041] refer to Figure 4 The shape of the snap-fit ​​connector 18 is wedge-shaped, which facilitates the fixing of the pressure plate 13.

[0042] Brief description of usage: Connect the intake pipe 2 to the diesel engine exhaust pipe, and connect the fourth housing 8 to the exhaust gas purification device. Exhaust gas enters the first housing 1 from the intake pipe 2, is filtered by the filter screen 20, and then enters the diverter pipe 4. The flow sensor 6 and the electric valve 5 are connected to the vehicle's control center. The flow sensor 6 detects the exhaust gas flow rate. The control center adjusts the opening of the electric valve 5 according to the flow rate of each diverter pipe 4 to ensure a consistent exhaust gas flow rate in each diverter pipe 4, thus dispersing the exhaust gas for the first time. The dispersed exhaust gas enters the diverter housing 10 and is discharged through multiple exhaust pipes 11 for a second dispersion. Then, the exhaust gas passes through the airflow distribution plate 9 for a third dispersion, achieving a good dispersion effect. Press the locking connector 18; the locking connector 18 moves to lock... When connector 18 disengages from pressure plate 13, pressure plate 13 is opened. Opening pressure plate 13 will cause hanging ring 14 to move, and hanging ring 14 will disengage from hook 15. First housing 1 or third housing 7 can be opened, and filter screen 20 or airflow distribution plate 9 can be removed for maintenance. After maintenance, filter screen 20 is placed in first housing 1, and airflow distribution plate is placed in third housing 7. First housing 1 or third housing 7 is installed on second housing 3 or fourth housing 8, and positioning rod 23 is used to position it. Then, hanging ring 14 is placed in hook 15, and pressure plate 13 is pressed into place, so that hanging ring 14 pulls hook 15 tight, so that housing presses filter screen 20 or airflow distribution plate 9 tightly. Connector 18 is engaged with pressure plate 13 under the action of spring 19, fixing it and completing the maintenance, thereby achieving the purpose of convenient maintenance.

[0043] It should be noted that parts have a lifespan and can be replaced during regular maintenance when they no longer meet performance requirements. Deterioration in performance due to prolonged use of parts is not a design defect of this application.

[0044] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A diesel engine exhaust gas stream disperser comprising a first housing (1), characterised in that, An air inlet pipe (2) is connected to the left side of the first housing (1), and a second housing (3) is provided on the right side of the first housing (1). Multiple diverter pipes (4) are connected to the surface of the second housing (3). An electric valve (5) is connected to the surface of the diverter pipe (4). A flow sensor (6) is fixedly sleeved on the inner wall of the diverter pipe (4). A third housing (7) is fixedly sleeved on the surface of the diverter pipe (4). A fourth housing (8) is provided on the right side of the third housing (7). An airflow distribution plate (9) is provided between the third housing (7) and the fourth housing (8). A diverter shell (10) is connected to the right end of the diverter pipe (4). Multiple air outlet pipes (11) are connected to the surface of the diverter shell (10).

2. A diesel engine exhaust gas stream disperser according to claim 1, characterised in that, Multiple fixing blocks (12) are bolted to the surfaces of the first housing (1) and the third housing (7). A pressure plate (13) is rotatably connected to the surface of the fixing block (12). A hanging ring (14) is rotatably connected to the surface of the pressure plate (13). Hooks (15) are bolted to the surfaces of the second housing (3) and the fourth housing (8), and the hooks (15) and the hanging rings (14) overlap. Anti-loosening mechanisms (16) are provided on the surfaces of the first housing (1) and the third housing (7).

3. A diesel engine exhaust gas stream disperser according to claim 2, characterised in that, The anti-loosening mechanism (16) includes a fixing rod (17), which is connected through the inner wall of the pressure plate (13). The inner wall of the fixing rod (17) is slidably sleeved with two snap-fit ​​connectors (18), and the snap-fit ​​connectors (18) are snapped with the surface of the pressure plate (13). A spring (19) is provided between the two snap-fit ​​connectors (18).

4. A diesel engine exhaust gas diffuser according to claim 1, characterized in that, A filter screen (20) is provided between the inner walls of the first housing (1) and the second housing (3).

5. A diesel engine exhaust gas diffuser according to claim 1, characterized in that, The inner walls of the first housing (1) and the second housing (3) are both embedded with sealing gaskets (21).

6. A diesel engine exhaust gas diffuser according to claim 1, characterized in that, Flanges (22) are fixedly fitted onto the surfaces of the air intake pipe (2) and the fourth housing (8).

7. A diesel engine exhaust gas diffuser according to claim 3, characterized in that, The card connector (18) is wedge-shaped.

8. A diesel engine exhaust gas diffuser according to claim 2, characterized in that, Positioning rods (23) are bolted to the surfaces of the second housing (3) and the fourth housing (8), and the positioning rods (23) are slidably sleeved with the inner walls of the first housing (1) and the third housing (7).

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