A diesel engine condensate water collection device

Abstract

The utility model discloses a diesel engine condensate water collecting device relates to exhaust system condensate water collection technical field, including the oil gas separator for separating the oil in exhaust gas, transmission pipeline, condensate water separator, condensate water collecting jar and exhaust pipe: the oil gas separator for separating the oil in exhaust gas is installed on marine diesel engine, one end of transmission pipeline is connected with the exhaust port of oil gas separator, condensate water separator is connected with transmission pipeline, wherein, a diesel engine condensate water collecting device is connected with condensate water separator and condensate water collecting jar through transmission pipeline, can separate the oil and water vapor remaining in exhaust gas, reduce the environmental pollution caused by oil gas discharge, and the oil and water vapor separated by condensate water separator converge into condensate water collecting jar, thereby realizing the collection of oil and water, preventing the condensate water backflow of pipeline from entering marine diesel engine, thereby effectively improving the service life of marine diesel engine, with good use prospect.

Description

Technical Field

[0001] This utility model relates to the field of exhaust gas system condensate collection technology, and in particular to a diesel engine condensate collection device. Background Technology

[0002] Marine diesel engines are power devices that use diesel fuel and convert the chemical energy of the fuel into mechanical energy through a compression-ignition internal combustion engine. They mainly provide propulsion power for ships or power and heat supply for shipboard equipment.

[0003] Marine diesel engine exhaust system is a specialized system for treating exhaust gases emitted by marine diesel engines. It must ensure the safe discharge of exhaust gases while also achieving energy recovery and environmental compliance, and is an important component of the ship's power system.

[0004] In marine diesel engine exhaust systems, the exhaust gases from the engine need to be expelled from the engine room, so the exhaust pipe must be relatively long. Because the exhaust gases are at high temperatures, condensation is easily generated during the expulsion process. This condensation can flow back into the marine diesel engine, causing damage such as corrosion, oil emulsification affecting lubrication, and in severe cases, even failure of moving parts, leading to major malfunctions like the engine failing to operate, resulting in significant economic losses.

[0005] In summary, existing marine diesel engine exhaust systems have certain defects and do not meet user requirements. Therefore, we propose a diesel engine condensate collection device. Utility Model Content

[0006] The main objective of this invention is to provide a diesel engine condensate collection device. This device connects a condensate separator and a condensate collection tank via a transmission pipeline. It can separate residual engine oil and water vapor from exhaust gas, reducing environmental pollution caused by oil vapor emissions. The engine oil and water vapor separated by the condensate separator are collected in the condensate collection tank, thus achieving oil and water collection and preventing condensate from flowing back into the marine diesel engine. This effectively improves the service life of the marine diesel engine and solves the problems in the background art.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A diesel engine condensate collection device includes an oil-gas separator for separating engine oil from exhaust gas, a transmission pipeline, a condensate separator, a condensate collection tank, and an exhaust pipe.

[0009] An oil-gas separator for separating engine oil from exhaust gas is installed on a marine diesel engine.

[0010] One end of the transmission pipeline is connected to the exhaust port of the oil-gas separator;

[0011] The condensate separator is connected to the transmission pipeline and is used to separate residual engine oil and water vapor in the exhaust gas;

[0012] The condensate collection tank is connected to the condensate separator and is used to store the separated engine oil and water vapor;

[0013] One end of the exhaust pipe passes through the cabin and connects to the exhaust port of the condensate collection tank;

[0014] The upper end of the exhaust pipe is provided with a bend.

[0015] Preferably, the transmission pipeline includes a horizontal section and a vertical section. One end of the horizontal section is connected to the exhaust port of the oil-gas separator, and the other end of the horizontal section is connected to the middle position of the vertical section. The two ends of the vertical section are respectively connected to a condensate separator and a condensate collection tank.

[0016] Preferably, the condensate separator is a labyrinth-type condensate separator, and the condensate outlet and exhaust gas inlet of the labyrinth-type condensate separator are both connected to the upper end of the vertical part, and the inlet of the condensate collection tank is fixedly connected to the upper end of the vertical part.

[0017] Preferably, the drain pipe of the condensate collection tank is equipped with an automatic drain switch, and a check valve is installed on the transverse part.

[0018] Preferably, the drain pipe of the condensate collection tank is equipped with a manual drain switch, the condensate collection tank is equipped with a liquid level sensor to issue an alarm signal when the water level reaches a set height, and a check valve is installed on the horizontal part.

[0019] Preferably, the lateral portion includes a main body and an adjustment assembly:

[0020] The check valve is installed on the main body;

[0021] The two ends of the adjustment component are detachably connected to one end of the main body and the vertical part, respectively.

[0022] Preferably, the adjustment assembly includes a pipe section and two sets of connecting sections, the two sets of connecting sections being fixedly installed on both sides of the pipe section. The pipe section is provided with a guide section, a constriction section and an extension section along the exhaust gas flow direction. The inner diameter of the guide section is larger than the inner diameter of the extension section, and the inner diameter of the extension section is larger than the inner diameter of the constriction section.

[0023] Preferably, an elastic sealing element is provided inside the extension near the vertical part. The elastic sealing element is composed of several sets of elastic sealing pieces, which are arranged in a ring and can seal the extension when not subjected to exhaust gas impact force.

[0024] Preferably, the condensate separator has several sets of partition plates inside, all of which are oriented towards the center. The partition plates form a tortuous exhaust gas channel. The partition plates have holes, and the condensate flowing along the partition plates moves along the partition plates and then falls through the holes onto a temporary water storage device located inside the exhaust gas inlet of the condensate separator.

[0025] Preferably, the temporary water storage component includes a temporary water storage section, an elastic element, and a sealing element:

[0026] The temporary water storage section is fixedly connected to the bottom partition plate;

[0027] The elastic element is fixedly installed inside the temporary water storage section;

[0028] The upper end of the sealing component is fixedly connected to the elastic component;

[0029] When there is no water in the temporary water storage section, the sealing member is stuck at the bottom outlet of the temporary water storage section. When the water in the temporary water storage section is two-thirds full, the sealing member moves downward and the outlet of the temporary water storage section opens.

[0030] Compared with the prior art, the beneficial effects of this utility model are:

[0031] Firstly, this solution provides a diesel engine condensate collection device, which connects a condensate separator and a condensate collection tank via a transmission pipeline. It can separate residual engine oil and water vapor in the exhaust gas, reducing environmental pollution caused by engine oil gas emissions. The engine oil and water vapor separated by the condensate separator are collected in the condensate collection tank, thereby achieving oil and water collection and preventing condensate from flowing back into the marine diesel engine, thus effectively improving the service life of the marine diesel engine and showing good application prospects.

[0032] Secondly, this solution provides a diesel engine condensate collection device, which is equipped with a transmission pipe, including a horizontal section and a vertical section. An adjustment component is installed on the horizontal section, which can increase the flow rate of high-temperature gas, thereby enabling the gas to impact and pass through the elastic sealing element. When the gas flows back in the vertical section, the impact direction is opposite, and it cannot pass through the elastic sealing element. In conjunction with a check valve, it can effectively prevent condensate from flowing back into the marine diesel engine. It has good performance and good application prospects.

[0033] Thirdly, this solution provides a diesel engine condensate collection device, which changes the structure of the vertical section and the condensate separator. The condensate outlet and exhaust gas inlet of the condensate separator are both connected to the upper end of the vertical section, which can simultaneously achieve the effect of gas moving upward and oil and water moving downward. This reduces the number of pipes and effectively reduces space requirements. It has good performance and good application prospects. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of a diesel engine condensate collection device according to the present invention;

[0035] Figure 2 This is a partial structural diagram of the adjustment component in a diesel engine condensate collection device according to the present invention;

[0036] Figure 3 This is a partial structural diagram of the condensate separator in a diesel engine condensate collection device according to the present invention;

[0037] Figure 4 This is a partial structural diagram of a temporary water storage component in a diesel engine condensate collection device according to the present invention;

[0038] Figure 5 This is a partial cross-sectional view of a temporary water storage component in a diesel engine condensate collection device according to the present invention.

[0039] Figure 6 This utility model relates to a diesel engine condensate collection device. Figure 5 Enlarged view of the structure at point A in the middle.

[0040] In the diagram: 1. Oil-gas separator; 2. Transmission pipeline; 3. Condensate separator; 4. Condensate collection tank; 5. Exhaust pipe; 6. Check valve; 7. Drain switch; 8. Pipeline section; 9. Connection section; 10. Guide section; 11. Contraction section; 12. Extension section; 13. Elastic sealing element; 14. Divider plate; 15. Hole position; 16. Temporary water storage component; 17. Elastic element; 18. Sealing element. Detailed Implementation

[0041] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0042] This application provides a diesel engine condensate collection device to solve the problem in the prior art where, in marine diesel engine exhaust systems, the exhaust gas from the engine needs to be discharged from the engine room, requiring a relatively long exhaust pipe. Because the exhaust gas temperature is high, condensate is easily generated during the discharge process. This condensate flowing back into the marine diesel engine can cause damage, such as corrosion, oil emulsification affecting lubrication, and in severe cases, even failure of moving parts, leading to major malfunctions such as engine failure and significant economic losses.

[0043] Example 1

[0044] like Figure 1-6As shown, a diesel engine condensate collection device includes an oil-gas separator 1 for separating engine oil from exhaust gas, a transmission pipe 2, a condensate separator 3, a condensate collection tank 4, and an exhaust pipe 5.

[0045] An oil-gas separator 1 for separating engine oil from exhaust gas is installed on the marine diesel engine; one end of a transmission pipe 2 is connected to the exhaust port of the oil-gas separator 1; a condensate separator 3 is connected to the transmission pipe 2 and is used to separate residual engine oil and water vapor in the exhaust gas; a condensate collection tank 4 is connected to the condensate separator 3 and is used to store the separated engine oil and water vapor; one end of an exhaust pipe 5 passes through the engine room and is connected to the exhaust port of the condensate collection tank 4; wherein, the upper end of the exhaust pipe 5 is provided with a bend to prevent rainwater from entering.

[0046] When in use, the marine diesel engine operates and generates exhaust gas. After being processed by the oil-gas separator 1, the exhaust gas is divided into two parts. One part is engine oil, which flows back to the marine diesel engine through the pipeline connected to the oil-gas separator 1. The other part is exhaust gas, which moves along the transmission pipeline 2 and comes into contact with the condensate separator 3. The condensate separator 3 separates the residual engine oil and water vapor in the exhaust gas. The condensed oil and water fall into the condensate collection tank 4 under the action of gravity and are collected, thereby preventing the condensate from flowing back into the marine diesel engine. The exhaust gas after condensation is discharged through the exhaust pipe 5.

[0047] This solution provides a diesel engine condensate collection device, which connects a condensate separator 3 and a condensate collection tank 4 via a transmission pipe 2. It can separate residual engine oil and water vapor in the exhaust gas, reducing environmental pollution caused by engine oil gas emissions. The engine oil and water vapor separated by the condensate separator 3 are collected in the condensate collection tank 4, thereby achieving oil and water collection and preventing condensate from flowing back into the marine diesel engine, thus effectively improving the service life of the marine diesel engine and showing good application prospects.

[0048] Example 2

[0049] Based on Example 1, such as Figure 1 As shown, this embodiment also describes the following structure:

[0050] The transmission pipeline 2 includes a horizontal section and a vertical section. One end of the horizontal section is connected to the exhaust port of the oil-gas separator 1, and the other end of the horizontal section is connected to the middle position of the vertical section. The two ends of the vertical section are connected to the condensate separator 3 and the condensate collection tank 4, respectively.

[0051] The two ends of the vertical part are connected to the condensate separator 3 and the condensate collection tank 4 respectively. The condensate separator 3 is located directly above the condensate collection tank 4. Therefore, the oil and water separated by the condensate separator 3 can fall directly into the condensate collection tank 4 and be stored.

[0052] The condensate separator 3 adopts a labyrinth-type condensate separator. The condensate outlet and exhaust gas inlet of the labyrinth-type condensate separator are both connected to the upper end of the vertical part. The inlet of the condensate collection tank 4 is fixedly connected to the upper end of the vertical part.

[0053] The condensate outlet and exhaust gas inlet of the labyrinth-type condensate separator are both connected to the upper part of the vertical section, allowing the drainage pipe and the air intake pipe to be shared. Therefore, there is no need to lay other pipes, which greatly reduces the space of the entire system and makes it easy to install.

[0054] The vertical design allows the oil and water separated by the labyrinth condensate separator to fall directly into the condensate collection tank 4 under the influence of gravity, thus achieving automatic oil and water collection.

[0055] An automatic drain switch 7 is installed on the drain pipe of the condensate collection tank 4, and a check valve 6 is installed on the horizontal part.

[0056] The automatic drain switch 7 automatically discharges wastewater when the water volume reaches a certain level, while the check valve 6 prevents condensate from flowing back into the marine diesel engine, thus effectively extending the service life of the marine diesel engine.

[0057] The condensate collection tank 4 is equipped with a manual drain switch 7 on its drain pipe. The condensate collection tank 4 is equipped with a liquid level sensor inside, which is used to issue an alarm signal when the water level reaches the set height. A check valve 6 is installed on the horizontal part.

[0058] When using a manual drain switch 7, a corresponding sensor must be provided to warn relevant personnel to drain the water, preventing the liquid level from rising and causing exhaust gas to be unable to escape.

[0059] When the water level in the condensate collection tank 4 reaches a certain level, the liquid level sensor will issue an alarm signal. When the relevant personnel receive the alarm signal, they can manually open the manual drain switch 7 to drain the oil and water inside the condensate collection tank 4.

[0060] Example 3

[0061] Based on Example 2, such as Figure 1-2 As shown, this embodiment also describes the following structure:

[0062] The horizontal section includes the main body and the adjustment components:

[0063] Check valve 6 is installed on the main body;

[0064] The two ends of the adjustment component are detachably connected to one end of the main body and the vertical part, respectively.

[0065] In use, the adjusting component works in conjunction with the check valve 6 to prevent condensate from flowing back into the marine diesel engine. The adjustable component has a detachable structure, which allows for direct replacement if damaged, and also facilitates the maintenance of the check valve 6.

[0066] The adjustment assembly includes a pipe section 8 and two sets of connecting sections 9. The two sets of connecting sections 9 are fixedly installed on both sides of the pipe section 8. The pipe section 8 is provided with a guide section 10, a contraction section 11 and an extension section 12 along the direction of exhaust gas flow. The inner diameter of the guide section 10 is larger than the inner diameter of the extension section 12, and the inner diameter of the extension section 12 is larger than the inner diameter of the contraction section 11.

[0067] The guide section 10, the constriction section 11 and the extension section 12 inside the pipe section 8 form a Venturi effect. By shortening the extension section 12, the flow rate through the pipe section 8 is increased, thereby accelerating the flow speed of the exhaust gas.

[0068] An elastic sealing element 13 is provided inside the extension 12 near the vertical part. The elastic sealing element 13 is composed of several sets of elastic sealing pieces, which are arranged in a ring and can seal the extension 12 when not subjected to exhaust gas impact force.

[0069] An elastic sealing member 13 is provided inside the extension 12. Under normal circumstances, the elastic sealing member 13 blocks the extension 12 under its own elastic force. When the exhaust gas is accelerated and comes into contact with the elastic sealing member 13, it will impact the elastic sealing member 13, causing the elastic sealing member 13 to deform. This creates gaps between the elastic sealing members 13, allowing the exhaust gas to flow into the vertical part and be processed later.

[0070] The structure employs a dual anti-backflow design with adjusting components and a check valve 6, which effectively reduces interference from the external environment and ensures the operation of the marine diesel engine.

[0071] In actual use, the adjustment component or check valve 6 can also be set separately.

[0072] This solution provides a diesel engine condensate collection device, which is equipped with a transmission pipe 2, including a horizontal section and a vertical section. An adjustment component is installed on the horizontal section, which can increase the flow rate of high-temperature gas, thereby enabling the gas to impact and pass through the elastic sealing member 13. When the gas flows back in the vertical section, the impact direction is opposite, and it cannot pass through the elastic sealing member 13. In conjunction with the check valve 6, it can effectively prevent condensate from flowing back into the marine diesel engine. It has good performance and good application prospects.

[0073] Example 4

[0074] Based on Example 3, such as Figure 1-6 As shown, this embodiment also describes the following structure:

[0075] The condensate separator 3 has several sets of partition plates 14 inside, all of which are oriented towards the center. The partition plates 14 form a tortuous exhaust gas channel. The partition plates 14 have holes 15. The condensate flowing along the partition plates 14 moves along the partition plates 14 and then falls through the holes 15 onto the temporary water storage component 16 set inside the exhaust gas inlet of the condensate separator 3.

[0076] The partition 14 is composed of inclined plates and horizontal plates, and its specific structure is as follows: Figure 3 As shown, after the exhaust gas enters, it will repeatedly come into contact with the partition plate 14. After the temperature drops, it forms a liquid. The liquid moves along the inclined plate, gathers at the hole 15, and then drips onto the temporary water storage component 16.

[0077] The temporary water storage device 16 is set up to collect oil and water, preventing subsequent exhaust gas from coming into contact with the oil and water from the previous process, and ensuring the condensation effect of oil and water in the exhaust gas.

[0078] The temporary water storage component 16 includes a temporary water storage section, an elastic component 17, and a sealing component 18.

[0079] The temporary water storage section is fixedly connected to the bottom partition plate 14; the elastic element 17 is fixedly installed inside the temporary water storage section; the upper end of the sealing element 18 is fixedly connected to the elastic element 17.

[0080] The elastic element 17 is a spring. A mounting plate is provided inside the temporary water storage part near the lower end. The upper end of the spring is fixedly connected to the mounting plate. When there is no oil or water, the upper end of the sealing element 18 is located inside the outlet of the temporary water storage part 16 under the elastic force of the elastic element 17. The upper end face of the sealing element 18 is provided with a guide groove for oil and water flow. When the water in the temporary water storage part is two-thirds full, the sealing element 18 moves downward, the outlet of the temporary water storage part opens, and the oil and water flow along the guide groove and fall into the condensate collection tank 4 under the action of gravity.

[0081] When there is no water in the temporary water storage section, the sealing member 18 is stuck at the bottom outlet of the temporary water storage section. When the water in the temporary water storage section is two-thirds full, the sealing member 18 moves downward and the outlet of the temporary water storage section opens.

[0082] The temporary water storage unit 16 continuously stores water. When the water in the temporary water storage unit reaches two-thirds full, the gravity of the liquid is greater, and it continuously pushes the sealing member 18 downward until it partially leaves the outlet of the temporary water storage unit 16, causing the outlet of the temporary water storage unit to open and the oil and water to fall out.

[0083] This solution provides a diesel engine condensate collection device, which modifies the structure of the vertical section and the condensate separator 3. The condensate outlet and exhaust gas inlet of the condensate separator are both connected to the upper end of the vertical section, which can simultaneously achieve the effect of gas moving upward and oil and water moving downward. This reduces the number of pipes, effectively reduces space, has good performance, and has good application prospects.

[0084] It should be noted that this utility model describes a diesel engine condensate collection device. When a marine diesel engine is working, it generates exhaust gas. After the exhaust gas is processed by the oil-gas separator 1, it is divided into two parts. One part is engine oil, which flows back to the marine diesel engine through the pipeline connected to the oil-gas separator 1. The other part is exhaust gas, which moves along the transmission pipeline 2 and comes into contact with the condensate separator 3. The condensate separator 3 separates the residual engine oil and water vapor in the exhaust gas. The condensed oil and water fall into the condensate collection tank 4 under the action of gravity and are collected, thereby preventing the condensate from flowing back into the marine diesel engine. The condensed exhaust gas is discharged through the exhaust pipe 5.

[0085] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A diesel engine condensate collection device for use in the exhaust system of a marine diesel engine, characterized in that, include: An oil-gas separator (1) for separating engine oil from exhaust gas is installed on a marine diesel engine. The transmission pipeline (2) is connected at one end to the exhaust port of the oil-gas separator (1); A condensate separator (3), which is connected to the transmission pipe (2), is used to separate residual oil and water vapor in the exhaust gas; A condensate collection tank (4), which is connected to a condensate separator (3), is used to store the separated oil and water vapor; The exhaust pipe (5) has one end that passes through the cabin and is connected to the exhaust port of the condensate collection tank (4); The upper end of the exhaust pipe (5) is provided with a bend.

2. The diesel engine condensate collection device according to claim 1, characterized in that: The transmission pipeline (2) includes a horizontal section and a vertical section. One end of the horizontal section is connected to the exhaust port of the oil-gas separator (1), and the other end of the horizontal section is connected to the middle position of the vertical section. The two ends of the vertical section are connected to the condensate separator (3) and the condensate collection tank (4) respectively.

3. A diesel engine condensate collection device according to claim 2, characterized in that: The condensate separator (3) is a labyrinth condensate separator. The condensate outlet and exhaust gas inlet of the labyrinth condensate separator are both connected to the upper end of the vertical part. The inlet of the condensate collection tank (4) is fixedly connected to the upper end of the vertical part.

4. A diesel engine condensate collection device according to claim 2, characterized in that: An automatic drain switch (7) is installed on the drain pipe of the condensate collection tank (4), and a check valve (6) is installed on the transverse part.

5. A diesel engine condensate collection device according to claim 2, characterized in that: The condensate collection tank (4) is equipped with a manual drain switch (7) on its drain pipe. The condensate collection tank (4) is equipped with a liquid level sensor inside, which is used to issue an alarm signal when the water level reaches the set height. A check valve (6) is installed on the horizontal part.

6. A diesel engine condensate collection device according to claim 5, characterized in that: The transverse portion includes: The main body, the check valve (6) is installed on the main body; The adjustment component has two ends that are detachably connected to one end of the main body and the vertical part, respectively.

7. A diesel engine condensate collection device according to claim 6, characterized in that: The adjustment assembly includes a pipe section (8) and two sets of connecting parts (9). The two sets of connecting parts (9) are fixedly installed on both sides of the pipe section (8). The pipe section (8) is provided with a guide section (10), a contraction section (11) and an extension section (12) along the direction of exhaust gas flow. The inner diameter of the guide section (10) is larger than the inner diameter of the extension section (12), and the inner diameter of the extension section (12) is larger than the inner diameter of the contraction section (11).

8. A diesel engine condensate collection device according to claim 7, characterized in that: An elastic sealing element (13) is provided inside the extension (12) near the vertical part. The elastic sealing element (13) is composed of several sets of elastic sealing pieces. The several sets of elastic sealing pieces are arranged in a ring and seal the extension (12) when not subjected to exhaust gas impact force.

9. A diesel engine condensate collection device according to claim 7, characterized in that: The condensate separator (3) is provided with several sets of partition plates (14) inside. All partition plates (14) are arranged facing the middle position. The partition plates (14) form a tortuous exhaust gas channel. The partition plates (14) are provided with holes (15). The condensate flowing along the partition plates (14) moves along the partition plates (14) and then passes through the holes (15) and falls onto the temporary water storage device (16) set inside the exhaust gas inlet of the condensate separator (3).

10. A diesel engine condensate collection device according to claim 9, characterized in that: The temporary water storage device (16) includes: A temporary water storage section, which is fixedly connected to the bottommost partition plate (14); The elastic element (17) is fixedly installed inside the temporary water storage section; The sealing element (18) is fixedly connected at its upper end to the elastic element (17); When there is no water in the temporary water storage section, the sealing member (18) is stuck at the outlet at the bottom of the temporary water storage section. When the water in the temporary water storage section is two-thirds full, the sealing member (18) moves downward and the outlet of the temporary water storage section opens.

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