A device for separating impurities from refined oil

Abstract

The utility model discloses a refining oil production technical field's a kind of refining oil production impurity separation device, including shell. Filter screen, deflector and settling tank are sequentially and interval arranged from top to bottom in shell inner cavity. Filter screen is concave arc shape, and oil inlet assembly is arranged above filter screen, and the lowest place below filter screen is communicated with first deslagging pipe. The top edge of filter screen is provided with the deslagging assembly towards the mesh surface of filter screen bottom. The utility model solves the problem of low impurity separation efficiency and inconvenience of cleaning in crude oil pretreatment by the cooperation of concave arc filter screen, deslagging assembly and settling tank, realizes efficient separation and accurate deslagging, and guarantees the stability of subsequent refining process.

Description

Technical Field

[0001] This utility model relates to the field of refined oil production technology, and in particular to a device for separating impurities in refined oil production. Background Technology

[0002] In the field of refined oil production, converting crude oil into qualified refined oil is a complex and crucial process. Typically, crude oil enters refining equipment via pipelines and undergoes multiple processes, including impurity removal, degumming, decolorization, and deodorization. Before these core processes, pretreatment of the crude oil to remove large particulate impurities is an essential step.

[0003] Currently, existing equipment for separating impurities in crude oil has significant shortcomings. While these devices can separate large particles of impurities to some extent, a serious problem exists: the separated impurities are difficult to recover and clean. This deficiency significantly reduces the efficiency of crude oil pretreatment, hindering the entire refined oil production process in its early stages.

[0004] Due to the low efficiency of crude oil pretreatment, subsequent processes such as impurity removal, degumming, decolorization, and deodorization are also affected and cannot proceed at the ideal pace, thus impacting the efficiency and quality of the entire refined oil production. Therefore, developing an impurity separation device for refined oil production that can efficiently separate impurities and facilitate their recovery and cleaning is of great significance. Utility Model Content

[0005] The main objective of this invention is to provide a device for separating impurities in refined oil production, which addresses the problems mentioned in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A device for separating impurities in refined oil production includes a shell. Inside the shell, a filter screen, a guide plate, and a settling tank are arranged sequentially from top to bottom at intervals. The filter screen is concave arc-shaped, with an oil inlet assembly above it and a first slag discharge pipe connected to the lowest point below the filter screen. A slag flushing assembly is provided along the top edge of the filter screen, facing towards the bottom surface of the screen.

[0008] Furthermore, the oil inlet assembly includes an oil inlet pipe, an injection pipe, and a nozzle. The oil inlet pipe enters the inner cavity of the housing from the top and downwards. The lower end of the oil inlet pipe is connected to multiple downwardly angled injection pipes, and a nozzle is installed at the end of each injection pipe. The nozzle sprays oil towards the inner curved surface of the filter screen.

[0009] Furthermore, the slag flushing assembly includes an inlet pipe, an annular pipe, and a slag flushing pipe. An annular pipe communicating with the inlet pipe is located at the top of the housing, and the slag flushing pipe is connected to one side of the annular pipe. The slag flushing pipe passes through the housing and extends into the top of the filter screen.

[0010] Furthermore, the settling tank is funnel-shaped, with a second slag discharge pipe at the lower end and an oil extraction pipe on one side inside the settling tank.

[0011] Furthermore, a first valve is installed on the first slag discharge pipe, and a second valve is installed on the second slag discharge pipe.

[0012] This invention also includes other components that enable the impurity separation device for refined oil production to function properly. These devices or components all employ conventional techniques in the art. Furthermore, devices and components not specifically defined in this invention all employ conventional techniques in the art, such as the first valve and second valve mentioned in this application. In specific implementation, appropriate equipment or component models can be selected according to the specific working scenario.

[0013] The working principle of this invention is as follows: Crude oil is transported to the spray pipe through the oil inlet pipe of the oil inlet assembly, and then dispersed and sprayed onto the inner arc surface of the filter screen through multiple nozzles. The increased filtration area effectively improves the impurity separation efficiency. The filtered oil flows downward through the filter screen, and the intercepted impurities accumulate at the bottom of the filter screen. During cleaning, the first valve is opened, and the slag flushing assembly flushes the bottom surface of the filter screen through the slag flushing pipe, causing the impurities to be discharged through the first slag discharge pipe.

[0014] After initial filtration, the oil is guided into the settling tank by a baffle plate, where suspended impurities settle naturally under gravity. When the sedimentation reaches the required level, the second valve is opened to discharge impurities from the bottom of the settling tank through the second slag discharge pipe, while the clean oil is extracted through the side wall's extraction pipe.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. Improved impurity separation efficiency: The increased filtration area through the concave arc-shaped filter screen and the dispersed spray structure of multiple nozzles effectively improves the separation speed of large particulate impurities.

[0017] 2. Facilitates impurity recovery and cleaning: The slag flushing component and the first slag discharge pipe are set to form a flushing linkage structure, realizing the directional flushing and centralized discharge of impurities at the bottom of the filter screen. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a refined oil production impurity separation device according to the present invention.

[0019] In the diagram: 1. Outer shell; 2. Filter screen; 3. Baffle plate; 4. Settling tank; 5. Oil inlet pipe; 6. Oil injection pipe; 7. Nozzle; 8. Water inlet pipe; 9. Circular pipe; 10. Slag flushing pipe; 11. First slag discharge pipe; 12. Oil extraction pipe; 13. Second slag discharge pipe; 14. First valve; 15. Second valve. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0021] Example:

[0022] like Figure 1 As shown, a refined oil production impurity separation device includes a shell 1. Inside the shell 1, a filter screen 2, a guide plate 3, and a settling tank 4 are arranged sequentially from top to bottom. The filter screen 2 is concave arc-shaped, with an oil inlet assembly above it and a first slag discharge pipe 11 connected to its lowest point. A slag flushing assembly facing the bottom surface of the filter screen 2 is provided along the top edge of the filter screen 2.

[0023] Specifically, the slag flushing assembly includes a water inlet pipe 8, an annular pipe 9, and a slag flushing pipe 10. An annular pipe 9, communicating with the water inlet pipe 8, is located at the top of the outer casing 1, and the slag flushing pipe 10 is connected to one side of the annular pipe 9. The slag flushing pipe 10 passes through the outer casing 1 and extends into the top of the filter screen 2. The oil inlet assembly includes an oil inlet pipe 5, an oil spray pipe 6, and a nozzle 7. The oil inlet pipe 5 enters the inner cavity of the outer casing 1 from the top downwards, and multiple downward-sloping oil spray pipes 6 are connected to the lower end of the oil inlet pipe 5. A nozzle 7 is located at the end of each oil spray pipe 6. The nozzle 7 sprays oil towards the inner arc surface of the filter screen 2.

[0024] In addition, the settling tank 4 is funnel-shaped, with a second slag discharge pipe 13 at the lower end and an oil extraction pipe 12 on one side inside the settling tank 4. A first valve 14 is installed on the first slag discharge pipe 11, and a second valve 15 is installed on the second slag discharge pipe 13.

[0025] The working principle of this utility model's impurity separation device for refined oil production is as follows: Crude oil is transported to the spray pipe 6 through the oil inlet pipe 5 of the oil inlet assembly, and then dispersed and sprayed onto the inner arc surface of the filter screen 2 through multiple nozzles 7. The increased filtration area effectively improves the impurity separation efficiency. The filtered oil flows downward through the filter screen 2, and the intercepted impurities accumulate at the bottom of the filter screen 2. During cleaning, the first valve 14 is opened, and the slag flushing assembly flushes the bottom surface of the filter screen 2 through the slag flushing pipe 10, causing the impurities to be discharged through the first slag discharge pipe 11.

[0026] After initial filtration, the oil is guided into the settling tank 4 by the guide plate 3, where suspended impurities settle naturally under gravity. When the sedimentation reaches the process requirements, the second valve 15 is opened to discharge the impurities at the bottom of the settling tank 4 through the second slag discharge pipe 13, while the clean oil is extracted through the oil extraction pipe 12 on the side wall.

[0027] The above embodiments are merely descriptions of preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope of the present utility model.

Claims

1. A device for separating impurities in refined oil production, comprising a shell (1), characterized in that: The inner cavity of the outer shell (1) is provided with a filter screen (2), a guide plate (3) and a settling tank (4) arranged sequentially from top to bottom; the filter screen (2) is concave arc-shaped, an oil inlet assembly is provided above the filter screen (2), and a first slag discharge pipe (11) is connected to the lowest point below the filter screen (2); a slag flushing assembly is provided on the top edge of the filter screen (2) facing the bottom mesh surface of the filter screen (2).

2. The impurity separation device for refined oil production according to claim 1, characterized in that: The oil inlet assembly includes an oil inlet pipe (5), an oil spray pipe (6), and a nozzle (7); the oil inlet pipe (5) enters the inner cavity of the outer shell (1) from the top of the outer shell (1) downwards, and the lower end of the oil inlet pipe (5) is connected to multiple downwardly angled oil spray pipes (6), and the nozzle (7) is provided at the end of the oil spray pipe (6); the nozzle (7) sprays oil toward the inner arc surface of the filter screen (2).

3. The impurity separation device for refined oil production according to claim 1, characterized in that: The slag flushing assembly includes an inlet pipe (8), an annular pipe (9), and a slag flushing pipe (10); the top of the outer shell (1) is provided with an annular pipe (9) that communicates with the inlet pipe (8), and the slag flushing pipe (10) is connected to one side of the annular pipe (9); the slag flushing pipe (10) passes through the outer shell (1) and extends into the top of the filter screen (2).

4. The impurity separation device for refined oil production according to claim 1, characterized in that: The settling tank (4) is funnel-shaped, and a second slag discharge pipe (13) is provided at the lower end of the settling tank (4). An oil extraction pipe (12) is provided on one side inside the settling tank (4).

5. The impurity separation device for refined oil production according to claim 4, characterized in that: The first slag discharge pipe (11) is equipped with a first valve (14), and the second slag discharge pipe (13) is equipped with a second valve (15).

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