Oil-water separation equipment for petroleum refining

Abstract

The utility model relates to oil -water separation equipment technical field, and disclose a kind of oil-water separation equipment for petroleum chemical refining, including oil-water separation tank, two groups of tank body supporting legs are fixed in the both sides symmetry of oil-water separation tank, the side of oil-water separation tank top is provided with oil input pipe, first valve is provided on the oil input pipe, the utility model is provided with oil input pipe on oil-water separation tank, oil-water separation tank is set in the bottom of oil input pipe with oil liquid deflector, oil liquid deflector can be guided to the mixed oil liquid that is injected into oil-water separation tank by oil input pipe, so that oil liquid is guided to the end of oil-water separation tank, water bag of cutting that is arranged in the bottom of oil-water separation tank can discharge the moisture collected in time from tank, avoid moisture and oil product mixing again, reduce excessive oil product taken out when draining simultaneously, to improve oil-water separation efficiency, guarantee the purity of medium oil product in tank, ensure that subsequent product water quality is qualified.

Description

Technical Field

[0001] This utility model relates to the technical field of oil-water separation equipment, specifically an oil-water separation device for petrochemical refining. Background Technology

[0002] In oil refining or petrochemical liquefied gas production units, oil-water separators are important equipment. After sufficient residence and settling space and time, the water in the oil-water is separated by the density difference between oil-water and water, reducing the water content of the feed to the outlet tower or the water content of the product from the unit.

[0003] A search revealed that this utility model relates to the field of oil-water separation equipment technology, specifically an oil-water separation device for petrochemical refining. It includes a filter cylinder, with a support fixedly connected to the outer wall of the top of the filter cylinder. A motor is installed on one inner wall of the support, and a transmission wheel assembly is installed on the top inner wall of the support. One end of the motor's output shaft is fixedly connected to the inner wall of one side of the transmission wheel assembly via a coupling. A movable tube is fixedly connected to the inner wall of the other side of the transmission wheel assembly. A collection plate is fixedly connected to the inner wall of the top of the filter cylinder, and a filter cover is fixedly connected to the inner wall of the collection plate. A sleeve is fixedly connected to the outer wall of the top of the movable tube. This utility model allows large impurities to be directly pushed into the collection plate, preventing clogging and ensuring effective filtration. Chemical treatment agents can be injected evenly and quickly to react with the oil-water mixture. The spiral blades effectively prevent sedimentation and stratification, improving the treatment effect and increasing the efficiency of the oil-water separation equipment.

[0004] The oil-water separation equipment in the aforementioned patent still has certain shortcomings. Traditional oil-water separation equipment used in petrochemical refining is mostly based on the principle of gravity sedimentation. It utilizes the density difference between oil and water to allow the oil-water mixture to remain still in the container for a long time. Water sinks due to its higher density, while oil floats, achieving preliminary separation. However, the internal structure of existing oil-water separation tanks is relatively simple and lacks an effective flow-slowing structure. This means that when the oil-water liquid is injected into the tank, the newly input oil mixture will have a certain impact force, causing the already separated oil in the tank to be re-mixed. This renders the previous static separation work useless, affects the overall oil-water separation progress, and increases the risk of subsequent products being substandard due to water contamination. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an oil-water separation device for petrochemical refining. It solves the problem that existing oil-water separators have relatively simple internal structures and lack effective flow-retarding mechanisms. This results in the newly injected oil-water mixture having a certain impact force during feeding, causing the already statically separated oil to be re-mixed, rendering the initial static separation work useless, affecting the overall oil-water separation progress, and increasing the risk of subsequent products failing to meet quality standards due to water contamination.

[0006] This utility model provides the following technical solution: an oil-water separation device for petrochemical refining, including an oil-water separation tank, two sets of tank support legs symmetrically fixed on both sides of the oil-water separation tank, an oil inlet pipe provided on the side of the top of the oil-water separation tank, and a first valve provided on the oil inlet pipe;

[0007] An oil guide plate is provided on the side of the top of the oil-water separator. The oil guide plate is located at the bottom of the oil inlet pipe. Several impact baffles are evenly arranged inside the oil-water separator. Three drain openings are evenly opened on the impact baffles. A bottom opening is opened in the middle of the bottom of the oil-water separator. A water cutter is provided at the bottom of the bottom opening. A drain pipe is provided on the side of the bottom of the water cutter. A second valve is provided on the drain pipe.

[0008] Preferred technical solution 1: An oil discharge pipe is provided on the side of the bottom end of the oil-water separator, and a third valve is provided on the oil discharge pipe.

[0009] Preferred technical solution 2: A viewing window is provided in the middle of the side of the oil-water separator, and the viewing window is closed by a transparent plate.

[0010] Preferred technical solution 3: Two baffles are symmetrically arranged on both sides of the oil guide plate.

[0011] This design allows the oil flowing through the oil guide plate to be better guided and flow into the end of the oil-water separator.

[0012] Preferred technical solution four: The oil guide plate is inclined and disposed at the end of the oil-water separator.

[0013] This design enables the oil guide plate to guide the mixed oil added to the oil-water separator through the oil inlet pipe to the end of the oil-water separator. The arc shape at the end of the oil-water separator allows the oil entering the oil-water separator to flow slowly along the inner wall of the oil-water separator, reducing the impact of subsequent oil additions on previously added oil.

[0014] Preferred technical solution five: The impact barrier plate is semi-circular, and the bottom of the impact barrier plate is not in contact with the bottom wall of the oil-water separator.

[0015] This solution enables the impact baffle plate to block the oil entering the oil-water separator, thereby reducing its high fluidity and improving the oil-water separation efficiency. It also prevents newly added mixed oil from impacting the separated oil layer again, thus avoiding the need for the oil and water to remain still for a long time for separation.

[0016] Compared with the prior art, this utility model provides an oil-water separation device for petrochemical refining, which has the following beneficial effects: This utility model features an oil inlet pipe on the oil-water separation tank, with an oil guide plate at the bottom of the inlet pipe. The guide plate directs the mixed oil injected into the oil-water separation tank through the inlet pipe, allowing the oil to flow slowly along the inner wall of the tank. This effectively prevents subsequent additions of mixed oil from impacting the previously statically separated oil. The impact baffle plate in the tank also effectively reduces the oil's fluidity, improving separation efficiency. The water-cutting bag at the bottom of the tank promptly discharges collected water, preventing water from mixing with the oil again and reducing excessive oil carryover during drainage. This improves oil-water separation efficiency, ensures the purity of the oil in the tank, and guarantees the quality of the subsequent product with water content. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the internal cross-section of the structure of this utility model;

[0019] Figure 3 For the present utility model Figure 2 Enlarged view of the structure of the oil inlet pipe;

[0020] Figure 4 For the present utility model Figure 2 Schematic diagram of the impact barrier plate structure.

[0021] In the diagram: 1. Oil-water separator; 2. Tank support leg; 3. Oil inlet pipe; 4. First valve; 5. Oil guide plate; 6. Impact baffle plate; 7. Drain opening; 8. Bottom opening; 9. Water cutter; 10. Drain pipe; 11. Second valve; 12. Oil outlet pipe; 13. Third valve. Detailed Implementation

[0022] Please see Figure 1-4 ,

[0023] Example 1: An oil-water separation device for petrochemical refining includes an oil-water separation tank 1, two sets of tank support legs 2 are symmetrically fixed on both sides of the oil-water separation tank 1, an oil inlet pipe 3 is provided on the side of the top of the oil-water separation tank 1, and a first valve 4 is provided on the oil inlet pipe 3.

[0024] An oil guide plate 5 is provided on the side of the top of the oil-water separator 1. The oil guide plate 5 is located at the bottom of the oil inlet pipe 3. Several impact baffle plates 6 are evenly arranged inside the oil-water separator 1. Three drain openings 7 are evenly opened on the impact baffle plates 6. A bottom opening 8 is opened in the middle of the bottom end of the oil-water separator 1. A water cutter 9 is provided at the bottom of the bottom opening 8. A drain pipe 10 is provided on the side of the bottom end of the water cutter 9. A second valve 11 is provided on the drain pipe 10. An oil discharge pipe 12 is provided on the side of the bottom end of the oil-water separator 1. A third valve 13 is provided on the oil discharge pipe 12.

[0025] A viewing window is provided in the middle of the side of the oil-water separator 1, and the viewing window is closed by a transparent plate.

[0026] Example 2: The difference between this example and Example 1 is that two baffles are symmetrically arranged on both sides of the oil guide plate 5.

[0027] This allows the oil flowing through the oil guide plate 5 to be better guided and flow into the end of the oil-water separator 1.

[0028] Example 3: The difference between this example and Example 1 is that the oil guide plate 5 is inclined and installed at the end of the oil-water separator 1.

[0029] The oil guide plate 5 can guide the mixed oil added to the oil-water separator 1 through the oil input pipe 3 to the end of the oil-water separator 1. The arc shape of the end of the oil-water separator 1 allows the oil entering the oil-water separator 1 to flow slowly along the inner wall of the oil-water separator 1, reducing the impact of subsequent oil additions on the previously added oil.

[0030] Example 4: The difference between this example and Example 1 is that the impact barrier plate 6 is semi-circular, and the bottom of the impact barrier plate 6 is not attached to the bottom wall of the oil-water separator 1.

[0031] The impact baffle plate 6 can block the oil entering the oil-water separator 1, thereby reducing its large flow and improving the oil-water separation efficiency. This prevents newly added mixed oil from impacting the separated oil layer again, thus avoiding the need for the oil and water to be separated again after a long period of stillness.

[0032] In this embodiment, traditional oil-water separation equipment used in petrochemical refining is mostly based on the principle of gravity sedimentation. It utilizes the density difference between oil and water to allow the oil-water mixture to remain still in the container for a long time. Water sinks due to its higher density, while oil floats, achieving preliminary separation. However, the existing oil-water separation tank has a relatively simple internal structure and lacks an effective flow-retarding structure. This means that when the oil-water liquid is injected into the tank, the newly input oil mixture will have a certain impact force, causing the already separated oil in the tank to be re-mixed by impact. This renders the previous static separation work useless, affects the overall oil-water separation progress, and increases the risk of subsequent products being substandard due to water contamination.

[0033] In summary, in practical implementation, when a user needs to separate oil and water in a mixed oil solution, the user can inject the oil mixture into the oil-water separator 1 through the oil inlet pipe 3. By opening the first valve 4 and closing the third valve 13 and the second valve 11, the mixed oil solution is injected into the oil-water separator 1 through the oil inlet pipe 3. An oil guide plate 5 is provided at the bottom of the oil inlet pipe 3. The oil guide plate 5 is inclined and its end does not contact the end of the oil-water separator 1. This allows the mixed oil solution guided by the oil guide plate 5 to flow to the end of the oil-water separator 1 and slowly flow into the oil-water separator 1 along the arc shape of the end of the oil-water separator 1. This effectively avoids the oil solution that has been statically separated in the oil-water separator 1 being impacted by the subsequently added oil solution, which would cause the oil and water to mix again and reduce the scouring and thinning of the oil solution.

[0034] Furthermore, by uniformly arranging several impact baffles 6 in the oil-water separator 1, with drainage openings 7 evenly provided on the impact baffles 6, the oil after separation can flow better only when being discharged, and the large fluidity of the oil when it is statically separating can be avoided, thereby increasing its relative settling time and improving the oil separation efficiency. At the bottom of the oil-water separator 1, a water cutter 9 is provided, which can effectively solve the problem of efficient and accurate discharge of water at the bottom after the oil-water mixture in the tank naturally separates due to density differences.

[0035] Specifically: When oil, gas, oil products, and water are left to stand in the tank, water, due to its higher density, will settle to the bottom of the tank. The water cutter is usually set at a specific position at the bottom of the tank, like a "concave collection area," which can collect and gather this settled water. By setting a drain pipe 10 and a second valve 11 on the side of the water cutter 9, the collected water can be discharged out of the tank in a timely manner, preventing water from mixing with oil products again, and reducing the amount of oil products carried out during drainage, thereby improving the oil-water separation efficiency and ensuring the purity of the medium oil products in the tank.

[0036] For example, in the oil-water separator tank of an oil refinery, the water cutter can accurately collect the water that settles to the bottom of the tank. By controlling the drain valve, the water can be discharged without affecting the upper layer of oil, which reduces the processing load of subsequent equipment, reduces the risk of water in the product, and ensures that the quality of the subsequent product is qualified.

Claims

1. An oil-water separation device for petrochemical refining, comprising an oil-water separation tank (1), wherein two sets of tank support legs (2) are symmetrically fixed on both sides of the oil-water separation tank (1), characterized in that: An oil inlet pipe (3) is provided on the side of the top of the oil-water separator (1), and a first valve (4) is provided on the oil inlet pipe (3); An oil guide plate (5) is provided on the side of the top of the oil-water separator (1). The oil guide plate (5) is located at the bottom of the oil inlet pipe (3). Several impact baffles (6) are evenly arranged inside the oil-water separator (1). Three drain openings (7) are evenly opened on the impact baffles (6). A bottom opening (8) is opened in the middle of the bottom end of the oil-water separator (1). A water cutter (9) is provided at the bottom of the bottom opening (8). A drain pipe (10) is provided on the side of the bottom end of the water cutter (9). A second valve (11) is provided on the drain pipe (10).

2. The oil-water separation equipment for petrochemical refining according to claim 1, characterized in that: The oil-water separator (1) has an oil discharge pipe (12) on the side of its bottom end, and a third valve (13) is provided on the oil discharge pipe (12).

3. The oil-water separation equipment for petrochemical refining according to claim 2, characterized in that: The oil-water separator (1) has a viewing window in the middle of its side, which is closed by a transparent plate.

4. The oil-water separation equipment for petrochemical refining according to claim 3, characterized in that: Two baffles are symmetrically arranged on both sides of the oil guide plate (5).

5. The oil-water separation equipment for petrochemical refining according to claim 4, characterized in that: The oil guide plate (5) is inclined and installed at the end of the oil-water separator (1).

6. The oil-water separation equipment for petrochemical refining according to claim 5, characterized in that: The impact barrier plate (6) is semi-circular, and the bottom of the impact barrier plate (6) is not in contact with the bottom wall of the oil-water separator (1).

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