Scavenging pipe of low-speed diesel engine

Abstract

The utility model discloses a low-speed diesel engine scavenging pipe, which relates to the technical field of scavenging pipes and comprises a pipe main body, pipe hoops are arranged on the left side and the right side of the pipe main body, a flow dividing box is welded under the pipe main body, a flow dividing mechanism is arranged in the flow dividing box, and the flow dividing mechanism carries out flow dividing treatment on gas. Air inlets are formed in the two sides of the pipe body, the air inlets in the farther parts of the two sides are lifted to guarantee the sufficient air inlet amount, a filtering mechanism is arranged on the other side of the pipe body, the filtering mechanism clamps and positions multiple sets of filter elements according to the air inlet requirement and adjusts the clamping distance according to the size of the filter elements, and one side of a first branch air inlet pipe is connected to one side of the pipe body at equal intervals in a penetrating mode. By rotating the aluminum alloy mesh enclosure, the top end of the second branch air inlet pipe is covered with the aluminum alloy mesh enclosure, blockage caused by impurities in outside air is avoided, the air suction resistance is reduced, air enters more smoothly, the oxygen content is increased, and the performance of the engine is better.

Description

Technical Field

[0001] The utility model relates to the technical field of scavenging pipes, in particular to a scavenging pipe for a low-speed diesel engine. Background Art

[0002] The working principle of the diesel engine scavenge box is to increase the area of ​​the intake pipe to alleviate the intake resistance caused by the narrow intake duct and the filter resistance, so that the diesel engine intake volume is more sufficient and the combustion is more complete.

[0003] The scavenge pipe of a low-speed diesel engine is often an integrated type. The airflow conditions in the intake ducts of each cylinder vary greatly. This type of structure generally has poor uniformity in the intake flow coefficient and swirl ratio. In addition, during the use of the scavenge pipe, external dust will enter with the air. However, the outside of the scavenge pipe lacks positioning for filter elements of different areas, which increases the difficulty of the filter element in sucking in and blocking multiple groups of intake pipes. The gap between the filter element and the pipe will affect the air filtration effect. Summary of the invention

[0004] The utility model aims to provide a scavenging pipe for a low-speed diesel engine to solve the above-mentioned defects caused by the prior art.

[0005] A scavenging pipe for a low-speed diesel engine includes a pipe body, wherein pipe hoops are arranged on the left and right sides of the pipe body, a diverter box is welded directly below the pipe body, a diverter mechanism is arranged inside the diverter box, the diverter mechanism performs gas diversion processing, and lifts the air inlets at the farther parts on both sides to ensure sufficient air intake, a filtering mechanism is arranged on the other side of the pipe body, the filtering mechanism clamps and positions multiple groups of filter elements according to the demand for air intake, and adjusts the clamping spacing according to the size of the filter elements, and one side of the pipe body is evenly spaced through and connected with a branch air intake pipe.

[0006] Preferably, the filtering mechanism includes an air inlet hole, a filter element bracket, a guide groove, a partition plate and a positioning hole. The filter element bracket and one side of the tube body are symmetrically penetrated with an air inlet hole, the filter element bracket is welded to one side of the tube body, the outer side of the filter element bracket is symmetrically provided with guide grooves, the outer side of the guide groove is evenly spaced with partition plates, and one side of the filter element bracket is evenly spaced with positioning holes.

[0007] Preferably, the filter element bracket is connected to the partition plate by opening positioning holes at equal intervals on one side.

[0008] Preferably, the diversion mechanism includes a diversion box, an activated carbon block, an aluminum alloy mesh cover, an externally threaded pipe, a drying chamber and two branch air inlet pipes. The bottom end of the diversion box is evenly connected to the two branch air inlet pipes, and the top of the two branch air inlet pipes is provided with an externally threaded pipe. An aluminum alloy mesh cover is provided directly above the externally threaded pipe. A drying chamber is opened inside the diversion box, and the activated carbon blocks are staggered inside the diversion box.

[0009] Preferably, the second branch air inlet pipe is connected to the inner wall of the aluminum alloy mesh cover through an externally threaded pipe arranged at the top.

[0010] Preferably, the pipe body is connected to the top end of the second branch air intake pipe through a diverter box arranged at the bottom end.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] 1. By rotating the aluminum alloy mesh cover, the top of the second intake pipe is covered with the aluminum alloy mesh cover to avoid blockage caused by impurities in the outside air, reduce the intake resistance, make the air enter more smoothly, increase the oxygen content, make the combustion more powerful, fully improve the diesel engine power, and make the engine performance better.

[0013] 2. During use, the aluminum alloy mesh cover is quickly disassembled through the external threaded tube, and the aluminum alloy mesh covers of different mesh sizes are lifted for disassembly. At the same time, the filter element bracket is used to position the partition plate. During use, the filter element plate is positioned through multiple groups of partition plates, and multiple groups of filter element plates are lifted for disassembly and replacement. The tube body and filter element are lowered for replacement and disassembly, and the outer side of the partition plate is locked using the positioning hole to prevent the partition plate and the filter element bracket from loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the side structure of the tube body in the utility model.

[0016] Figure 3 It is a schematic diagram of the front section structure of the diverter box in the utility model.

[0017] Figure 4 It is a side view structural schematic diagram of the filter element bracket in the utility model.

[0018] in:

[0019] 1. Pipe body; 2. Pipe hoop; 3. Air inlet hole; 4. Diverter box; 5. Filter mechanism; 6. Filter element bracket; 7. Guide groove; 8. Partition plate; 9. Positioning hole; 10. Diverter mechanism; 11. Activated carbon block; 12. Aluminum alloy mesh cover; 13. Externally threaded pipe; 14. Drying chamber; 15. Branch air inlet pipe 1; 16. Branch air inlet pipe 2. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] like Figures 1 to 4 As shown, a scavenging pipe for a low-speed diesel engine comprises a pipe body 1, and pipe sleeves 2 are arranged on the left and right sides of the pipe body 1. A diverter box 4 is welded directly below the pipe body 1, and a diverter mechanism 10 is arranged inside the diverter box 4. The diverter mechanism 10 performs gas diversion processing to lift the air inlets at the farther parts on both sides to ensure sufficient air intake. A filtering mechanism 5 is arranged on the other side of the pipe body 1. The filtering mechanism 5 clamps and positions multiple groups of filter elements according to the demand for air intake, and adjusts the clamping spacing according to the size of the filter elements. One side of the pipe body 1 is evenly spaced and connected with one side of a branch air intake pipe 15.

[0022] In this embodiment, the filtering mechanism 5 includes an air intake hole 3, a filter element bracket 6, a guide groove 7, a partition plate 8 and a positioning hole 9. The filter element bracket 6 and one side of the pipe body 1 are symmetrically penetrated with an air intake hole 3, the filter element bracket 6 is welded to one side of the pipe body 1, and the outer side of the filter element bracket 6 is symmetrically provided with guide grooves 7, and partition plates 8 are evenly spaced outside the guide grooves 7. One side of the filter element bracket 6 is evenly spaced with positioning holes 9. The filter element is disassembled through the filter element bracket 6 to improve the assembly and replacement efficiency of the pipe body 1 and the filter element.

[0023] In this embodiment, the filter element bracket 6 is connected to the partition plate 8 by opening positioning holes 9 at equal intervals on one side, and the partition plate 8 and the filter element bracket 6 can be disassembled and replaced through the positioning holes 9.

[0024] In this embodiment, the diversion mechanism 10 includes a diversion box 4, an activated carbon block 11, an aluminum alloy mesh cover 12, an external threaded pipe 13, a drying chamber 14 and a second branch air intake pipe 16. The bottom end of the diversion box 4 is evenly connected with the second branch air intake pipe 16, and the top of the second branch air intake pipe 16 is provided with an external threaded pipe 13. The aluminum alloy mesh cover 12 is provided directly above the external threaded pipe 13. The diversion box 4 is provided with a drying chamber 14. The activated carbon blocks 11 are staggeredly distributed inside the diversion box 4. The gas is purified and dried by the activated carbon blocks 11, while occupying most of the drying chamber 14 to increase the flow rate of gas injection.

[0025] In this embodiment, the second branch air intake pipe 16 is connected to the inner wall of the aluminum alloy mesh cover 12 through the external threaded pipe 13 arranged at the top, and the second branch air intake pipe 16 is covered by the aluminum alloy mesh cover 12 to improve the purification efficiency of the intake air.

[0026] In this embodiment, the tube body 1 is connected to the top of the second branch air inlet pipe 16 through the diverter box 4 arranged at the bottom, and the gas is diverted by the diverter box 4, while the internal area of ​​the drying chamber 14 is controlled to improve the uniformity of gas delivery.

[0027] In practical application, this low-speed diesel engine scavenging pipe includes the following work contents:

[0028] Step 1: During use, the pipe ferrule 2 is installed on both sides of the pipe body 1, and the outer side of the diesel engine is positioned by the pipe ferrules 2 arranged on both sides, and the filter element is installed on the surface of the filter element bracket 6 and the partition plate 8 is pulled so that the partition plate 8 slides on the outer side of the guide groove 7, and the spacing of the multiple groups of partition plates 8 is adjusted, and the two sides of the filter element are clamped by the partition plate 8, and at the same time, the filter element blocks the surface of the air intake hole 3;

[0029] Step 2: Through the work of the engine, the outside air is sucked into the inside of the sub-intake pipe 15, and the purified gas is injected into the inside of the pipe body 1 through the sub-intake pipe 15, and then the gas is diverted through the diversion box 4 arranged below the pipe body 1, and the diverted gas is injected into the inside of the engine through the sub-intake pipe 2 16 arranged below, and the gas is filtered through the aluminum alloy mesh cover 12 to prevent foreign matter from clogging the sub-intake pipe 2 16 and affecting the stability of the engine operation;

[0030] Step 3: The operator can install the activated carbon block 11 into the inside of the diverter box 4 according to the spacing between the multiple groups of branch intake pipes 16, and use the activated carbon block 11 to fill the inside of the drying chamber 14 to improve the uniformity of gas injection, avoid injecting gas into the large space of the drying chamber 14, improve the efficiency of injecting gas from the branch intake pipe 16 into the engine, and use the activated carbon block 11 to dry the air efficiently.

[0031] Therefore, the embodiments disclosed above are only illustrative in all aspects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. A scavenging pipe for a low-speed diesel engine, characterized in that: The invention comprises a pipe body (1), wherein the left and right sides of the pipe body (1) are provided with pipe hoops (2), a diverter box (4) is welded directly below the pipe body (1), a diverter mechanism (10) is provided inside the diverter box (4), the diverter mechanism (10) performs gas diversion processing, and lifts the air inlets at the farther parts on both sides to ensure sufficient air intake, a filtering mechanism (5) is provided on the other side of the pipe body (1), the filtering mechanism (5) clamps and positions multiple groups of filter elements according to the demand for air intake, and adjusts the clamping spacing according to the size of the filter elements, and one side of the pipe body (1) is connected to a branch air intake pipe (15) at equal intervals.

2. The scavenging pipe for a low-speed diesel engine according to claim 1, characterized in that: The filtering mechanism (5) comprises an air intake hole (3), a filter element bracket (6), a guide groove (7), a partition plate (8) and a positioning hole (9); the filter element bracket (6) and one side of the pipe body (1) are symmetrically provided with an air intake hole (3); the filter element bracket (6) is welded to one side of the pipe body (1); the outer side of the filter element bracket (6) is symmetrically provided with a guide groove (7); the outer side of the guide groove (7) is provided with a partition plate (8) at equal intervals; and one side of the filter element bracket (6) is provided with positioning holes (9) at equal intervals.

3. The scavenging pipe for a low-speed diesel engine according to claim 2, characterized in that: The filter element bracket (6) is connected to the partition plate (8) through positioning holes (9) provided at equal intervals on one side.

4. The scavenging pipe for a low-speed diesel engine according to claim 1, characterized in that: The diversion mechanism (10) comprises a diversion box (4), an activated carbon block (11), an aluminum alloy mesh cover (12), an externally threaded pipe (13), a drying chamber (14) and a second branch air intake pipe (16); the bottom end of the diversion box (4) is connected to the second branch air intake pipe (16) at equal intervals; the top end of the second branch air intake pipe (16) is provided with an externally threaded pipe (13); the aluminum alloy mesh cover (12) is provided directly above the externally threaded pipe (13); the inside of the diversion box (4) is provided with a drying chamber (14); and the activated carbon blocks (11) are staggeredly distributed inside the diversion box (4).

5. The scavenging pipe for a low-speed diesel engine according to claim 4, characterized in that: The second branch air intake pipe (16) is connected to the inner wall of the aluminum alloy mesh cover (12) via an externally threaded pipe (13) arranged at the top.

6. The scavenging pipe for a low-speed diesel engine according to claim 1, characterized in that: The pipe body (1) is connected to the top end of the second air intake pipe (16) through a diverter box (4) arranged at the bottom end.

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