A flushing line and method for flushing a sludge line of a marine vessel

Abstract

The present application relates to a kind of flushing pipeline and flushing method of ship oil residue pipeline, belong to ship equipment technical field. The incinerator waste oil tank in ship is used to collect the waste oil generated by each equipment;Waste oil is communicated to incinerator waste oil tank by oil residue pipeline;Incinerator waste oil tank is communicated to the oil residue pipeline input end of incinerator by oil residue conveying pipeline, and incinerator is equipped with oil residue backflow pipeline and is communicated to incinerator waste oil tank;Incinerator diesel tank is communicated to incinerator by diesel pipeline, and incinerator is equipped with diesel backflow pipeline and is communicated to incinerator diesel tank;Parallel oil residue flushing pipeline is connected on the diesel backflow pipeline of incinerator waste oil tank and incinerator;Oil residue flushing pipeline is one-way pipeline for diesel backflow pipeline to oil residue output end.The ship oil residue pipeline flushing pipeline used in the present application does not need to make large-area change to existing pipeline and equipment, i.e., improvement is added to existing equipment, reduces construction process, and reduces construction cost.

Description

Technical Field

[0001] This invention relates to a flushing pipeline and flushing method for marine oil residue pipelines, belonging to the field of marine equipment technology. Background Technology

[0002] The existing marine incinerator system relies on a circulating pump at the waste oil tank to supply oil to the incinerator. After the incinerator is used regularly, oil residue will accumulate in the pipeline from the outlet of the waste oil tank to the incinerator oil residue inlet, clogging the pipeline. In subsequent use, the circulating pump needs to continuously supply oil for a long time to clear the pipeline. During this period, a large amount of diesel fuel will be burned without oil residue in the incinerator, resulting in waste. In addition, if no oil residue enters the combustion chamber for a long time, the temperature sensor cannot detect the temperature of the waste oil and will continuously output a low temperature alarm signal. Summary of the Invention

[0003] To address the above-mentioned shortcomings, this invention provides a flushing pipeline and flushing method for ship oil sludge pipelines.

[0004] The present invention adopts the following technical solution:

[0005] This invention discloses a flushing pipeline for a ship's oil sludge pipeline. The ship's incinerator waste oil tank is used to collect waste oil generated by various equipment. The waste oil is connected to the incinerator waste oil tank via an oil sludge pipeline. The incinerator waste oil tank is connected to the incinerator's oil sludge pipeline input end via an oil sludge conveying pipeline. The incinerator is equipped with an oil sludge return pipeline connected to the incinerator waste oil tank. The incinerator diesel tank is connected to the incinerator via a diesel pipeline. The incinerator is equipped with a diesel return pipeline connected to the incinerator diesel tank. An oil sludge flushing pipeline is connected in parallel to the diesel return pipeline of the incinerator and the oil sludge output end of the incinerator waste oil tank. The oil sludge flushing pipeline is a one-way pipeline from the diesel return pipeline to the oil sludge output end.

[0006] The present invention relates to a flushing pipeline for marine oil sludge pipelines, wherein a shut-off check valve is provided on the oil sludge flushing pipeline.

[0007] The flushing pipeline of the ship oil sludge pipeline of the present invention has an input end connected in parallel to a diesel return pipeline near the diesel return end of the incinerator, and an output end connected in parallel to an oil sludge conveying pipeline near the output end of the waste oil tank of the incinerator.

[0008] The flushing method for the marine oil sludge pipeline of the present invention comprises the following flushing steps:

[0009] (1) Waste oil generated during the use of various equipment in the ship is collected in the waste oil tank of the incinerator through waste oil conveying pipeline;

[0010] (2) Before starting the incinerator, start the supply pump on the waste oil tank of the incinerator to transport the waste oil in the waste oil tank to the incinerator. Use the observation mirror on the incinerator to judge whether the pipeline is unobstructed and ensure a continuous and stable supply of waste oil.

[0011] (3) If it is determined that the waste oil in step (2) meets the requirements for a continuous and stable supply, prepare to start the incinerator;

[0012] (4) Open the oil residue conveying pipeline of the waste oil tank of the incinerator to transport oil into the incinerator. At this time, diesel oil is transported to the diesel tank of the incinerator through the diesel pipeline to participate in the incineration of oil residue.

[0013] During incineration, some diesel fuel is returned to the diesel fuel tank of the incinerator through the diesel fuel return pipeline; some oil residue is returned to the waste oil tank of the incinerator through the oil residue return pipeline.

[0014] (5) When the oil residue processing in step (4) is about to end, close the output end of the oil residue pipeline of the waste oil tank of the incinerator and open the oil residue flushing pipeline; the diesel in the diesel return pipeline enters the oil residue conveying pipeline through the oil residue flushing pipeline to flush the pipeline, and the flushed diesel carries the oil residue in the pipeline to continue to be burned in the incinerator.

[0015] (6) When there is no more oil residue flowing out in (5), the interface is closed and the oil residue flushing pipeline is kept clean.

[0016] The flushing method for the ship oil sludge pipeline of the present invention, wherein in step (5), diesel fuel returning from the incinerator enters the oil sludge flushing pipeline, and the diesel fuel is flushed from the starting section of the oil sludge conveying pipe to the input end of the oil sludge pipeline of the incinerator, and the flushing path covers the entire oil sludge conveying pipe.

[0017] The flushing method for the ship oil sludge pipeline of the present invention, in step (6), adopts manual identification of the flushing status, and manually judges whether the oil sludge is present and the flushing is completed by observing the incinerator. Beneficial effects

[0018] The flushing pipeline for ship oil sludge pipelines used in this invention does not require large-scale changes to existing pipelines and equipment. Instead, it involves improvements to existing equipment, reducing the construction process and lowering construction costs.

[0019] The present invention employs a flushing method for ship oil sludge pipelines, which uses diesel fuel as the flushing medium and rationally utilizes the arranged flushing pipelines in combination with this method to effectively flush the oil sludge conveying pipelines.

[0020] The flushing method for ship oil sludge pipelines used in this invention is to flush the pipelines before the incinerator is finished, which reduces the need to inspect the oil sludge pipelines before each start-up. The flushing process is efficient and ensures that the pipeline from the waste oil tank to the incinerator is always clean, so that the oil sludge can be supplied to the combustion chamber of the incinerator as soon as possible when it is used later. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the flushing pipeline layout for the ship oil sludge pipeline of the present invention;

[0022] Figure 2 This is a schematic diagram of the flushing path of the flushing pipeline of the present invention. Implementation

[0023] To make the objectives and technical solutions of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0024] like Figure 1 The diagram shows a flushing pipeline for a ship's oil sludge pipeline. The ship's incinerator waste oil tank 1 is used to collect waste oil generated by various equipment. The waste oil is connected to the incinerator waste oil tank 1 via an oil sludge pipeline. The incinerator waste oil tank 1 is connected to the incinerator 3's oil sludge pipeline input end via an oil sludge conveying pipeline 2. The incinerator 3 is equipped with an oil sludge return pipeline 4 connected to the incinerator waste oil tank 1. The incinerator diesel tank 5 is connected to the incinerator 3 via a diesel pipeline 6. The incinerator 3 is equipped with a diesel return pipeline 7 connected to the incinerator diesel tank 5. An oil sludge flushing pipeline 8 is connected in parallel to the oil sludge output end of the incinerator waste oil tank 1 and the incinerator's diesel return pipeline 7. The oil sludge flushing pipeline 8 is a one-way pipeline from the diesel return pipeline 7 to the oil sludge output end.

[0025] A shut-off check valve 9 is installed on the oil residue flushing pipeline. The shut-off check valve is used to prevent waste oil from contaminating the diesel pipeline due to misoperation or forgetting to close the valve.

[0026] The input end of the oil residue flushing pipeline 8 is connected in parallel to the diesel return pipeline 7, which is close to the diesel return end of the incinerator. The output end of the oil residue flushing pipeline 8 is connected in parallel to the oil residue conveying pipeline 2, which is close to the output end of the waste oil tank of the incinerator. As shown in the figure, this output end should be as close as possible to the input end of the oil residue pipeline of the waste oil tank 1 of the incinerator, at point A in the figure.

[0027] like Figure 2 The following is a flushing method for ship oil sludge pipelines. The flushing steps are as follows:

[0028] (1) Waste oil generated during the use of various equipment in the ship is collected in the waste oil tank 1 of the incinerator through the waste oil conveying pipeline;

[0029] (2) Before starting the incinerator 3, start the supply pump on the waste oil tank of the incinerator to transport the waste oil in the waste oil tank 1 to the incinerator 3. Use the observation mirror on the incinerator 3 to judge whether the pipeline is unobstructed and ensure a continuous and stable supply of waste oil.

[0030] (3) If it is determined that the waste oil in step (2) meets the requirements for a continuous and stable supply, prepare to start up incinerator 1;

[0031] (4) Open the oil residue conveying pipeline 2 of the waste oil tank 1 of the incinerator to transport oil into the incinerator. At this time, diesel oil is transported from the diesel tank 5 of the incinerator through the diesel pipeline 6 to the incinerator 1 to participate in the incineration of oil residue.

[0032] During incineration, some diesel fuel is returned to the diesel fuel tank 5 of the incinerator through diesel fuel return pipeline 7; some oil residue is returned to the waste oil tank of the incinerator through oil residue return pipeline.

[0033] (5) When the oil residue processing in step (4) is about to end, close the output end of the oil residue pipeline of the waste oil tank 1 of the incinerator and open the shut-off check valve 9 of the oil residue flushing pipeline 8; the diesel in the diesel return pipeline 7 enters the oil residue conveying pipeline 2 through the oil residue flushing pipeline 8 to flush the pipeline, and the flushed diesel carries the oil residue in the pipeline to continue to be burned in the incinerator 3; the diesel returned from the incinerator 3 enters the oil residue flushing pipeline, and the diesel flushes from the beginning section of the oil residue conveying pipeline to the input end of the oil residue pipeline of the incinerator, and the flushing path covers the entire oil residue conveying pipeline.

[0034] (6) When the burning of oil residue is about to end, open the valve of this section of diesel pipeline and stop the oil supply from the waste oil tank circulation pump. Use diesel to flush the oil residue in this section of pipeline and observe through the incinerator sight glass until no more oil residue flows in. Then close the diesel pipeline valve and stop the incinerator to ensure that the pipeline from the waste oil tank to the incinerator is always clean. When used later, the oil residue can be supplied to the combustion chamber of the incinerator at the first time.

[0035] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A flushing pipeline for a ship's oil sludge pipeline, wherein a waste oil tank in the ship's incinerator is used to collect waste oil generated by various equipment; the waste oil is connected to the waste oil tank of the incinerator via an oil sludge pipeline; the waste oil tank of the incinerator is connected to the inlet end of the oil sludge pipeline of the incinerator via an oil sludge conveying pipeline, and the incinerator is provided with an oil sludge return pipeline connected to the waste oil tank of the incinerator; a diesel tank of the incinerator is connected to the incinerator via a diesel pipeline, and the incinerator is provided with a diesel return pipeline connected to the diesel tank of the incinerator; characterized in that: An oil residue flushing pipeline is connected in parallel to the oil residue output end of the waste oil tank of the incinerator and the diesel return pipeline of the incinerator; the oil residue flushing pipeline is a one-way pipeline from the diesel return pipeline to the oil residue output end.

2. The flushing pipeline for ship oil sludge pipeline according to claim 1, characterized in that: The oil residue flushing pipeline is equipped with a shut-off check valve.

3. The flushing pipeline for ship oil sludge pipeline according to claim 1, characterized in that: The inlet of the oil sludge flushing pipeline is connected in parallel to the diesel return pipeline near the diesel return end of the incinerator, and the outlet of the oil sludge flushing pipeline is connected in parallel to the oil sludge conveying pipeline near the outlet of the waste oil tank of the incinerator.

4. A flushing method for a ship's oil sludge pipeline according to any one of claims 1 to 3, characterized in that: The rinsing steps are as follows: (1) Waste oil generated during the use of various equipment in the ship is collected in the waste oil tank of the incinerator through waste oil conveying pipeline; (2) Before starting the incinerator, start the supply pump on the waste oil tank of the incinerator to transport the waste oil in the waste oil tank to the incinerator. Use the observation mirror on the incinerator to judge whether the pipeline is unobstructed and ensure a continuous and stable supply of waste oil. (3) If it is determined that the waste oil in step (2) meets the requirements for a continuous and stable supply, prepare to start the incinerator; (4) Open the oil residue conveying pipeline of the waste oil tank of the incinerator to transport oil into the incinerator. At this time, diesel oil is transported to the diesel tank of the incinerator through the diesel pipeline to participate in the incineration of oil residue. During incineration, some diesel fuel is returned to the diesel fuel tank of the incinerator through the diesel fuel return pipeline; some oil residue is returned to the waste oil tank of the incinerator through the oil residue return pipeline. (5) When the oil residue processing in step (4) is about to end, close the output end of the oil residue pipeline of the waste oil tank of the incinerator and open the oil residue flushing pipeline; the diesel in the diesel return pipeline enters the oil residue conveying pipeline through the oil residue flushing pipeline to flush the pipeline, and the flushed diesel carries the oil residue in the pipeline to continue to be burned in the incinerator. (6) When there is no more oil residue flowing out in (5), the interface is closed and the oil residue flushing pipeline is kept clean.

5. The flushing method for the ship's oil sludge pipeline according to claim 4, characterized in that: In step (5), the diesel fuel returned from the incinerator enters the sludge flushing pipeline. The diesel fuel is flushed from the starting section of the sludge conveying pipe to the input end of the sludge pipeline of the incinerator, and the flushing path covers the entire sludge conveying pipe.

6. The flushing method for the ship's oil sludge pipeline according to claim 4, characterized in that: In step (6), the washing status is manually identified, and the oil residue is judged by the incinerator observation mirror to determine whether the washing is complete.

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