Water inflow prevention device for exhaust gas turbocharger of marine diesel engine

Abstract

The invention discloses a marine diesel engine exhaust gas turbocharger waterproof device which comprises a shell assembly, a filter element mounting frame, a mounting cover, a water filtering screen plate, a limiting assembly and an extrusion block, the filter element mounting frame is arranged on one side of the shell assembly, and a filter element body used for filtering water is arranged in the filter element mounting frame; the mounting cover is arranged on one side of the filter element mounting frame, a mounting groove is formed in one side of the mounting cover, and the water filtering screen plate is connected into the mounting groove in a penetrating manner. Through the design of the filter element mounting frame, the filter element body, the mounting cover, the mounting groove, a water filtering screen plate, a limiting assembly, an extrusion block and a moving assembly, during use, the water filtering screen plate and the filter element body are firstly mounted at the waste gas outlet end of the turbocharger, rainwater is blocked through the filter element body and the water filtering screen plate, and then the waste gas is discharged; rainwater is prevented from entering the turbine engine through the waste gas outlet end in rainy days, and therefore the turbine engine is protected.

Description

TECHNICAL FIELD

[0001] The present application relates to the turbocharger technical field, especially to a marine diesel engine exhaust turbocharger anti-water device. BACKGROUND

[0002] The marine diesel engine in operation, its exhaust turbocharger needs to inhale a large amount of air to work efficiently, in order to prevent foreign matter from entering, usually in the air intake pipe is provided with air filter element, but in the exhaust end lacks the corresponding blocking mechanism. However, in the period of ship downtime, when it rains, the official ship strongly resists, there is a lot of water along the exhaust pipe into the turbine end, so that in the subsequent use process, liquid water will collide with the turbine, the turbine is damaged due to collision, resulting in unable to use, therefore, the present scheme proposes a marine diesel engine exhaust turbocharger anti-water device, to solve the above problems. SUMMARY

[0003] The present application aims to provide a marine diesel engine exhaust turbocharger anti-water device to solve the problems raised in the background.

[0004] To achieve the above object, the present application provides the following technical scheme: a marine diesel engine exhaust turbocharger anti-water device, comprising: A housing assembly; A filter element mounting frame is arranged on one side of the housing assembly, and a filter element body for filtering water is arranged inside the filter element mounting frame; A mounting cover is arranged on one side of the filter element mounting frame, and a mounting groove is formed on one side of the mounting cover; A water filtering mesh plate is connected inside the mounting groove; A limiting assembly is arranged at the connection between the water filtering mesh plate and the mounting groove, and the limiting assembly is used to limit the movement of the water filtering mesh plate; An extrusion block is arranged on one side of the water filtering mesh plate, and a moving assembly for moving the position of the extrusion block is arranged at the connection between the mounting cover and the extrusion block.

[0005] Preferably, the housing assembly comprises a connecting housing, one side of the connecting housing is provided with a compressor housing, one side of the compressor housing is provided with an air inlet, and the front of the compressor housing is provided with an air outlet.

[0006] Preferably, the other side of the connecting housing is provided with a turbine housing, one side of the turbine housing is provided with an exhaust outlet, the front of the turbine housing is provided with an exhaust inlet, and the middle of the connecting housing is provided with a transmission part.

[0007] Preferably, the transmission member comprises a connecting shaft connected in the middle of the connecting shell, both ends of the connecting shaft are fixedly connected with a turbine body and a compression wheel, the turbine body is connected in the inside of the turbine shell, and the compression wheel is connected in the inside of the compressor shell.

[0008] Preferably, the other side of the mounting cover is provided with a first air hole, and the side of the extrusion block is provided with a plurality of second air holes.

[0009] Preferably, the limiting assembly comprises a fixed frame sleeved on the outer wall of the water filtering mesh plate, the inner wall of one side of the mounting groove is fixedly connected with a limiting rod, one side of the fixed frame is provided with a limiting groove, and the limiting rod is connected in the inside of the limiting groove.

[0010] Preferably, the moving assembly comprises a threaded hole formed in the middle of the extrusion block, a threaded rod is screwed in the inside of the threaded hole, one end of the threaded rod is fixedly connected with a knob for rotating the threaded rod, the connection between the knob and the mounting cover is provided with a connecting piece, the inner wall of one side of the mounting groove is provided with a through hole, and the threaded rod is connected in the inside of the through hole.

[0011] Preferably, the inner wall of one side of the mounting groove is fixedly connected with a plurality of limiting rods, one side of the extrusion block is provided with a plurality of limiting holes, and the plurality of limiting rods are connected in the insides of the plurality of limiting holes.

[0012] Preferably, the other end of the threaded rod is fixedly connected with a blocking disc, and the blocking disc is used for limiting the moving distance of the extrusion block.

[0013] Preferably, the connecting piece comprises a connecting ring fixedly connected to the other side of the mounting cover, one side of the connecting ring is sleeved with a positioning ring, one side of the knob is provided with a connecting groove, the inner wall of one side of the connecting groove is provided with a positioning groove, the connecting ring is connected in the inside of the connecting groove, and the positioning ring is connected in the inside of the positioning groove.

[0014] The technical effects and advantages of the present application are as follows: The present application has the advantages that: the filter core mounting frame, the filter core body, the mounting cover, the mounting groove, the water filtering mesh plate, the limiting assembly, the extrusion block and the moving assembly are designed, in use, the water filtering mesh plate and the filter core body are installed at the exhaust gas outlet end of the turbocharger, rainwater is blocked by the filter core body and the water filtering mesh plate, and rainwater entering the inside of the turbo engine through the exhaust gas outlet end in rainy days is avoided, so that the turbo engine is protected. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole three-dimensional structure schematic view of the present application.

[0016] Figure 2It is a front structure schematic diagram of the shell assembly of the application.

[0017] Figure 3 It is a front structure schematic diagram of the application.

[0018] Figure 4 It is a front structure schematic diagram of the application.

[0019] Figure 5 It is a three-dimensional structure schematic diagram of the filter screen plate and the fixed frame of the application.

[0020] Figure 6 It is a side structure schematic diagram of the extrusion block of the application.

[0021] In the figure: 1, shell assembly; 101, air outlet; 102, air inlet; 103, connecting shell; 104, turbine shell; 105, compressor shell; 106, exhaust gas outlet; 107, exhaust gas inlet; 2, transmission part; 201, turbine body; 202, connecting shaft; 203, compression wheel; 3, mounting cover; 301, mounting groove; 302, first air hole; 4, filter screen plate; 5, limiting assembly; 501, limiting groove; 502, limiting rod; 503, fixed frame; 6, extrusion block; 601, second air hole; 7, moving assembly; 701, knob; 702, limiting hole; 703, limiting rod; 704, threaded rod; 705, blocking disc; 706, threaded hole; 707, through hole; 8, connecting part; 801, positioning groove; 802, positioning ring; 803, connecting ring; 804, connecting groove; 9, filter element mounting frame; 901, filter element body. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0023] The application provides a kind of marine diesel engine exhaust gas turbocharger anti-water inlet device as shown in Figure 1 - Figure 6 The marine diesel engine exhaust gas turbocharger anti-water inlet device includes: Shell assembly 1; Filter element mounting frame 9 is arranged at one side of shell assembly 1, and the inside of filter element mounting frame 9 is provided with filter element body 901 for filtering water; Mounting cover 3 is arranged at one side of filter element mounting frame 9, and one side of mounting cover 3 is provided with mounting groove 301; The water filter screen plate 4 is connected to the inside of the mounting groove 301 by insertion; The limiting assembly 5 is arranged at the connection between the water filter screen plate 4 and the mounting groove 301, and is used to limit the movement of the water filter screen plate 4; The extrusion block 6 is arranged on one side of the water filter screen plate 4, and the connection between the mounting cover 3 and the extrusion block 6 is provided with a moving assembly 7 for moving the position of the extrusion block 6.

[0024] It should be noted that the inside of the filter core mounting frame 9 is provided with a core filter core body 901, which is made of fiber or composite filter paper and is specially used for filtering and adsorbing moisture and dust in the air. At the air inlet of the filter core mounting frame 9, the mounting cover 3 is arranged, and the mounting groove 301 is formed in the side surface of the mounting cover 3. The water filter screen plate 4 is made of metal or high-strength plastic and is fixed in the mounting groove 301 by insertion. The diameter of the water filter screen plate 4 is thirty to ten meshes. When rain hits the water filter screen plate 4, the rain entering the filter core mounting frame 9 is reduced by the blocking of the filter screen, and the particulate matter entering the filter core mounting frame 9 is also reduced, thereby reducing the damage to the filter core body 901 caused by collision and reducing the interception of dust and water. The mounting cover 3 is fixedly connected to the air outlet of the filter core mounting frame 9 by bolts. One side of the filter core mounting frame 9 is provided with a mounting opening. In use, the filter core body 901 is installed in the inside of the filter core mounting frame 9 through the mounting opening, and the dust and water are further blocked by the filter core body 901 in use.

[0025] Further, in use, the water filter screen plate 4 and the filter core body 901 are installed at the exhaust gas outlet end of the turbocharger. The rain is blocked by the filter core body 901 and the water filter screen plate 4 to prevent rain from entering the inside of the turbo engine through the exhaust gas outlet end in rainy days, thereby protecting the turbo engine.

[0026] Specifically, the housing assembly 1 includes a connecting housing 103, one side of the connecting housing 103 is provided with a compressor housing 105, one side of the compressor housing 105 is provided with an air inlet 102, the front surface of the compressor housing 105 is provided with an air outlet 101, the other side of the connecting housing 103 is provided with a turbine housing 104, one side of the turbine housing 104 is provided with an exhaust gas outlet 106, the front surface of the turbine housing 104 is provided with an exhaust gas inlet 107, and the middle part of the connecting housing 103 is provided with a transmission part 2.

[0027] It should be noted that the shell assembly 1 is the core structure unit of the turbocharger, which is tightly combined by the connecting shell 103, the compressor shell 105 and the turbine shell 104. The connecting shell 103 is located in the center of the whole assembly, and a precise transmission part 2 is arranged in the connecting shell 103 for realizing efficient transmission of power. On one side of the connecting shell 103, the compressor shell 105 is fixedly connected thereto, and the compressor shell 105 is provided with an air outlet 101 on the front face and an air inlet 102 on the side face, which together form a complete air inlet channel. On the other side of the connecting shell 103, the turbine shell 104 is connected thereto, and the turbine shell 104 is provided with a waste gas inlet 107 on the front face and a waste gas outlet 106 on the side face, which form a complete waste gas flow path. The filter element mounting frame 9 is connected to the waste gas outlet 106 through a pipeline. In use, the filter water net plate 4 and the filter element body 901 intercept rainwater, so that the rainwater cannot enter the inside of the shell assembly 1 through the waste gas outlet 106, thereby protecting the turbocharger.

[0028] Specifically, the transmission part 2 includes a connecting shaft 202 penetratingly connected in the middle of the connecting shell 103. The connecting shaft 202 is fixedly connected with a turbine body 201 and a compression wheel 203 at two ends thereof respectively. The turbine body 201 is penetratingly connected in the inside of the turbine shell 104, and the compression wheel 203 is penetratingly connected in the inside of the compressor shell 105.

[0029] It should be noted that the transmission part 2 is the core component for realizing energy transmission in the turbocharger. The main body of the transmission part 2 is the connecting shaft 202 penetratingly connected in the middle of the connecting shell 103. The turbine body 201 is fixedly installed at one end of the connecting shaft 202, and the turbine body 201 is located in the inside of the turbine shell 104. The compression wheel 203 is fixedly connected at the other end of the connecting shaft 202, and the compression wheel 203 is located in the inside of the compressor shell 105. The connecting shaft 202 is usually made of high-temperature-resistant alloy steel and is supported in the connecting shell 103 by a floating bearing or a ball bearing system, so as to ensure stable operation of the connecting shaft 202 at a very high speed.

[0030] Further, the high-temperature exhaust gas discharged by the engine enters the turbine shell 104 through the waste gas inlet 107 and impacts the turbine body 201, so that the turbine body 201 rotates at a high speed. The turbine body 201 drives the compression wheel 203 located on the other side to rotate synchronously through the connecting shaft 202. When the compression wheel 203 in the compressor shell 105 rotates, external air is sucked from the air inlet 102, and after being pressurized, high-density air flow is formed and then is delivered to the engine air inlet manifold from the air outlet 101. As a result, more oxygen enters the cylinder, so that the fuel burns more fully, thereby effectively improving the output power and efficiency of the engine. Finally, the exhaust gas completing energy transmission is discharged through the waste gas outlet 106.

[0031] Specifically, the other side of the mounting cover 3 is provided with a first air hole 302, and the side of the extrusion block 6 is provided with a plurality of second air holes 601.

[0032] It should be noted that the first air hole 302 and the second air hole 601 are respectively used for air to pass through the mounting cover 3 and the extrusion block 6, so as to ensure the normal circulation of air; the number of the first air hole 302 and the second air hole 601 is consistent with the number of the water filtering mesh plate 4, and the positions of the three are matched.

[0033] Specifically, the limiting assembly 5 includes a fixed frame 503 sleeved on the outer wall of the water filtering mesh plate 4, the inner wall of one side of the mounting groove 301 is fixedly connected with a limiting rod 502, the one side of the fixed frame 503 is provided with a limiting groove 501, and the limiting rod 502 is insertedly connected in the inside of the limiting groove 501.

[0034] It should be noted that the fixed frame 503 is closely sleeved on the outer edge of the water filtering mesh plate 4, and the one side thereof towards the mounting groove 301 is provided with a regular limiting groove 501, and at the same time, the inner wall of the mounting groove 301 is fixedly connected with a limiting rod 502 matched with the limiting groove 501, when mounting, the water filtering mesh plate 4 is pushed into the mounting groove 301 together with the fixed frame 503, so that the limiting rod 502 is accurately inserted into the inside of the limiting groove 501, and through the plug-in cooperation of the limiting rod 502 and the limiting groove 501, the movement direction of the water filtering mesh plate 4 in the horizontal direction is completely limited, so as to prevent displacement or vibration of the water filtering mesh plate 4 under the impact of air flow.

[0035] Specifically, the moving assembly 7 includes a threaded hole 706 provided in the middle of the extrusion block 6, a threaded rod 704 is insertedly screwed in the inside of the threaded hole 706, one end of the threaded rod 704 is fixedly connected with a knob 701 for rotating the threaded rod 704, the connection between the knob 701 and the mounting cover 3 is provided with a connecting piece 8, the inner wall of one side of the mounting groove 301 is provided with a through hole 707, the threaded rod 704 is insertedly connected in the inside of the through hole 707, the inner wall of one side of the mounting groove 301 is fixedly connected with a plurality of limiting rods 703, one side of the extrusion block 6 is provided with a plurality of limiting holes 702, and the plurality of limiting rods 703 are respectively insertedly connected in the inside of the plurality of limiting holes 702. The other end of the threaded rod 704 is fixedly connected with a blocking disc 705, and the blocking disc 705 is used for limiting the movement distance of the extrusion block 6.

[0036] It should be noted that, in order to ensure that the extrusion block 6 does not deflect during movement, a plurality of limiting rods 703 parallel to the threaded rod 704 are fixedly installed on the inner wall of the installation groove 301, and correspondingly, a plurality of limiting holes 702 with matching position are processed on the side of the extrusion block 6, and the plurality of limiting rods 703 are accurately inserted into the corresponding limiting holes 702; a threaded hole 706 is processed in the center of the extrusion block 6, the threaded rod 704 is threadedly connected inside the threaded hole 706, one end of the threaded rod 704 extends to the outside of the installation cover 3 and is fixedly connected with a knob 701 convenient for manual operation, the knob 701 is rotationally supported by the connecting piece 8 and the side wall of the installation cover 3, and the other end of the threaded rod 704 is provided with a blocking disc 705 by welding or integral forming, the diameter of the blocking disc 705 is greater than that of the threaded hole 706, so that the blocking disc 705 cannot pass through the threaded hole 706, and the extrusion block 6 cannot be extruded through the blocking disc 705, which serves as a mechanical limit for the movement of the extrusion block 6 to prevent excessive displacement or accidental falling.

[0037] Further, when the water filter screen plate 4 needs to be installed, the knob 701 is rotated to drive the threaded rod 704 to rotate, the rotating threaded rod 704 drives the extrusion block 6 which is threadedly connected with the threaded rod 704 and cannot rotate to move, and the extrusion block 6 moves away from the installation cover 3, then the water filter screen plate 4 is inserted into the inside of the installation groove 301, the limiting groove 501 is aligned with the limiting rod 502, the limiting rod 502 is connected in the inside of the limiting groove 501, then the knob 701 is reversely rotated to drive the threaded rod 704 to rotate, the threaded rod 704 drives the extrusion block 6 to move towards the installation cover 3, and the extrusion block 6 extrudes and fixes the water filter screen plate 4.

[0038] Specifically, the connecting piece 8 includes a connecting ring 803 fixedly connected to the other side of the installation cover 3, a positioning ring 802 is sleeved on one side of the connecting ring 803, a connecting groove 804 is formed on one side of the knob 701, and a positioning groove 801 is formed on the inner wall of one side of the connecting groove 804, the connecting ring 803 is connected in the inside of the connecting groove 804, and the positioning ring 802 is connected in the inside of the positioning groove 801.

[0039] It should be noted that the connecting ring 803 is directly welded on the outer side wall of the installation cover 3, and a positioning ring 802 is coaxially sleeved on the outer side of the connecting ring 803, the ring is usually integrally formed with the connecting ring 803 by welding, the knob 701 is composed of two semicircular blocks, a circular connecting groove 804 is formed on the opposite side of the two semicircular blocks, for accommodating the connecting ring 803, for further radial positioning, a ring-shaped positioning groove 801 is also formed on the bottom side wall of the connecting groove 804, the knob 701 and the installation cover 3 are connected through the positioning groove 801, the positioning ring 802, the connecting ring 803 and the connecting groove 804.

[0040] Furthermore, when the knob 701 needs to be installed, firstly, the connecting ring 803 is fixedly connected to the other side of the mounting cover 3 by welding, then the positioning ring 802 is fixedly connected to the connecting ring 803 by welding, then the connecting groove 804 and the positioning groove 801 on the two semi-circular blocks are aligned with the connecting ring 803 and the positioning ring 802, and the two blocks are fitted onto the connecting ring 803 and the positioning ring 802. Finally, the two blocks are welded together to form the knob 701, and the knob 701 is installed on the other side of the mounting cover 3 by the connector 8.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A water intrusion prevention device for a marine diesel engine exhaust gas turbocharger, comprising: Including: The shell assembly (1); The filter core mounting frame (9) is arranged on one side of the shell assembly (1), and the inside of the filter core mounting frame (9) is provided with a filter core body (901) for filtering water; The mounting cover (3) is arranged on one side of the filter core mounting frame (9), and one side of the mounting cover (3) is provided with a mounting groove (301); The water filtering mesh plate (4) is connected in the inside of the mounting groove (301); The limiting assembly (5) is arranged at the connection between the water filtering mesh plate (4) and the mounting groove (301), and is used for limiting the movement of the water filtering mesh plate (4); The extrusion block (6) is arranged on one side of the water filtering mesh plate (4), and the connecting part of the mounting cover (3) and the extrusion block (6) is provided with a moving assembly (7) for moving the position of the extrusion block (6).

2. A marine diesel engine exhaust gas turbocharger anti-water-ingress device according to claim 1, characterized in that The shell assembly (1) comprises a connecting shell (103), one side of the connecting shell (103) is provided with a compressor shell (105), one side of the compressor shell (105) is provided with an air inlet (102), and the front of the compressor shell (105) is provided with an air outlet (101).

3. A marine diesel engine exhaust gas turbocharger anti-water-ingress device according to claim 2, characterized in that The other side of the connecting shell (103) is provided with a turbine shell (104), one side of the turbine shell (104) is provided with a waste gas outlet (106), the front of the turbine shell (104) is provided with a waste gas inlet (107), and the middle of the connecting shell (103) is provided with a transmission part (2).

4. A marine diesel engine exhaust gas turbocharger anti-water-ingress device according to claim 3, characterized in that The transmission part (2) comprises a connecting shaft (202) connected in the middle of the connecting shell (103), and the both ends of the connecting shaft (202) are fixedly connected with a turbine body (201) and a compression wheel (203) respectively, the turbine body (201) is connected in the inside of the turbine shell (104), and the compression wheel (203) is connected in the inside of the compressor shell (105).

5. A marine diesel engine exhaust gas turbocharger anti-water-ingress device according to claim 1, wherein The other side of the mounting cover (3) is provided with a first air hole (302), and the side of the extrusion block (6) is provided with a plurality of second air holes (601).

6. A marine diesel engine exhaust gas turbocharger anti-water-ingress device according to claim 1, wherein The limiting assembly (5) comprises a fixed frame (503) sleeved on the outer wall of the water filtering mesh plate (4), the inner wall of one side of the mounting groove (301) is fixedly connected with a limiting rod (502), one side of the fixed frame (503) is provided with a limiting groove (501), and the limiting rod (502) is connected in the inside of the limiting groove (501).

7. A marine diesel engine exhaust gas turbocharger anti-water-ingress device according to claim 1 wherein, The moving assembly (7) comprises a threaded hole (706) formed in the middle of the extrusion block (6), a threaded rod (704) is screwed in the inside of the threaded hole (706), one end of the threaded rod (704) is fixedly connected with a knob (701) for rotating the threaded rod (704), the connecting part of the knob (701) and the mounting cover (3) is provided with a connecting part (8), the inner wall of one side of the mounting groove (301) is provided with a through hole (707), and the threaded rod (704) is connected in the inside of the through hole (707).

8. A marine diesel engine exhaust gas turbocharger anti-water-ingress device according to claim 7, characterized in that The inner wall of one side of the installation groove (301) is fixedly connected with a plurality of limiting rods (703), one side of the extrusion block (6) is provided with a plurality of limiting holes (702), and the plurality of limiting rods (703) are respectively connected in the plurality of limiting holes (702).

9. A marine diesel engine exhaust gas turbocharger anti-water-ingress device according to claim 7, wherein The other end of the threaded rod (704) is fixedly connected with a blocking disc (705), and the blocking disc (705) is used for limiting the movement distance of the extrusion block (6).

10. A marine diesel engine exhaust gas turbocharger anti-water-ingress device according to claim 7, wherein The connecting piece (8) comprises a connecting ring (803) fixedly connected to the other side of the installation cover (3), one side of the connecting ring (803) is sleeved with a positioning ring (802), one side of the knob (701) is provided with a connecting groove (804), an inner wall of one side of the connecting groove (804) is provided with a positioning groove (801), the connecting ring (803) is connected in the connecting groove (804), and the positioning ring (802) is connected in the positioning groove (801).

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