A crude oil can

Abstract

This utility model discloses a crude oil tank, including a tank body and a tank cover located on top of the tank body. A feed pipe is provided at the top of the tank cover, and a recessed collection trough is provided at the bottom of the tank body. A first discharge pipe and a second discharge pipe are provided at the bottom of the collection trough. The feed end of the first discharge pipe extends above the collection trough, and the feed end of the second discharge pipe connects to the bottom of the collection trough. The discharge end of the second discharge pipe connects to a slag discharge pipe and a connecting pipe. The connecting pipe connects to the discharge end of the first discharge pipe. The crude oil tank of this utility model has a collection trough at the bottom to collect crude oil sediment. The first discharge pipe discharges oil, and its feed end extends above the collection trough to prevent blockage. The second discharge pipe discharges sediment and oil. The sediment is discharged from the slag discharge pipe, and the oil in the collection trough can re-enter the first discharge pipe through the connecting pipe to achieve discharge, thus avoiding oil waste.

Description

Technical Field

[0001] This utility model relates to the technical field of vegetable oil storage equipment, and in particular to a crude oil tank. Background Technology

[0002] In the vegetable oil processing industry, crude oil is a primary product extracted from oil crops through pressing or solvent extraction. It typically contains impurities such as phospholipids, free fatty acids, gums, moisture, and solid particles. These impurities easily form sediment during crude oil storage, especially after long-term settling in large crude oil storage tanks, where sediment gradually accumulates at the bottom. Currently, the oil outlet pipes of crude oil storage tanks are usually located on the side wall or bottom of the tank to facilitate the transport of crude oil to subsequent refining processes. However, due to sediment accumulation, there is a risk of pipe blockage during oil discharge. Mechanical wear on equipment such as oil pumps and valves, coupled with the tendency for operators to prematurely stop oil discharge to avoid drawing in sediment, leads to an increase in residual oil at the bottom of the tank and waste of raw materials. Utility Model Content

[0003] This invention addresses the issue of oil sediment inside crude oil tanks affecting oil discharge in existing technologies by proposing a crude oil tank that raises the inlet end of the oil discharge pipe to reduce the impact of sediment on oil discharge.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A crude oil tank includes a tank body and a tank cover located on top of the tank body. A feed pipe is provided on the top of the tank cover, and a recessed collection trough is provided at the bottom of the tank body. A first discharge pipe and a second discharge pipe are provided at the bottom of the collection trough. The feed end of the first discharge pipe extends to the top of the collection trough and is equipped with a filter screen. The discharge port of the first discharge pipe penetrates the bottom of the collection trough and extends to the outside of the collection trough. The feed end of the second discharge pipe is connected to the bottom of the collection trough, and the discharge end of the second discharge pipe is connected to a slag discharge pipe and a connecting pipe. The connecting pipe is connected to the discharge end of the first discharge pipe.

[0006] Preferably, an observation window is provided on the side of the collection tank.

[0007] Preferably, the observation window is made of transparent glass.

[0008] Preferably, the inlet end of the first discharge pipe is provided with a sealing cap, which is used to seal the end face of the first discharge pipe. The side of the inlet end of the first discharge pipe is provided with a flow hole for oil to enter, and a filter screen is provided inside the flow hole.

[0009] Preferably, the discharge end of the second discharge pipe is provided with a first pipe joint, which is used to connect the second discharge pipe, the slag discharge pipe and the connecting pipe.

[0010] Preferably, the slag discharge pipe is equipped with a first valve for opening or closing the slag discharge pipe.

[0011] Preferably, the connecting pipe is provided with a second valve for opening or closing the connecting pipe.

[0012] Preferably, the discharge end of the first discharge pipe is provided with a second pipe connector, which is used to connect the first discharge pipe, the outer pipe and the connecting pipe.

[0013] Preferably, the external pipe is equipped with a third valve for opening or closing the external pipe.

[0014] The beneficial effects of this utility model are:

[0015] 1. The bottom of this crude oil tank is equipped with a collection tank to collect crude oil sediment. The first discharge pipe is used to discharge the oil from the tank. The inlet end of the first discharge pipe extends to the top of the collection tank to avoid blockage. In addition, the bottom of the collection tank is equipped with a second discharge pipe for discharging sediment and oil. The sediment is discharged from the slag discharge pipe, and the oil in the collection tank can re-enter the first discharge pipe through the connecting pipe to achieve discharge, thereby maximizing the utilization of the oil and avoiding waste.

[0016] 2. An observation window is provided on the side of the crude oil collection tank, allowing staff to observe the material inside the collection tank and provide a reference for the operation of discharging sediment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the crude oil tank;

[0018] Figure 2 This is a schematic diagram of the structure at the bottom of the oil collection tank.

[0019] Figure 3 This is a structural schematic diagram of the cross-section at the bottom AA of the oil collection tank.

[0020] Figure 4 This is a schematic diagram of the structure of the oil collection tank.

[0021] In the diagram: 1. Tank body; 2. Tank lid; 3. Collection trough; 4. First discharge pipe; 5. Second discharge pipe; 6. Slag discharge pipe; 7. Connecting pipe; 8. External pipe; 9. Support frame; 10. First pipe joint; 11. Second pipe joint; 21. Feed pipe; 31. Observation window; 41. Flow hole; 42. Sealing cover; 43. Filter screen; 61. First valve; 71. Second valve; 81. Third valve; 101. Supernatant layer; 102. Submerged layer. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figure 1-4 A crude oil tank includes a tank body 1 and a tank cover 2 located on top of the tank body 1. The tank cover 2 is connected to the tank body 1 via a flange, and the tank cover 2 seals the top of the tank body 1. A feed pipe 21 is provided on the top of the tank cover 2. The feed pipe 21 can be equipped with an electrically controlled valve and is used for feeding crude oil into the tank body 1. A discharge pipe is provided at the bottom of the tank body 1 for discharging crude oil from inside the tank body 1. A support frame 9 is also provided at the bottom of the tank body 1 to support the tank body 1.

[0024] Furthermore, a recessed collection trough 3 is provided at the bottom of the tank body 1. The collection trough 3 is circular. The collection trough 3 is connected to the bottom of the tank body 1. Impurities in the crude oil sink and accumulate in the collection trough 3 to form a settling layer 102. The oil is located above the settling layer 102 to form a supernatant layer 101.

[0025] The discharge pipes of the aforementioned tank 1 include a first discharge pipe 4 and a second discharge pipe 5, which are respectively fixedly connected to the bottom of the collection tank 3. The inlet end of the first discharge pipe 4 extends to the top of the collection tank 3, and the outlet of the first discharge pipe 4 penetrates the bottom of the collection tank 3 and extends to the outside of the collection tank 3. The first discharge pipe 4 is used for discharging oil. The inlet end of the second discharge pipe 5 is connected to the bottom of the collection tank 3, and the second discharge pipe 5 is used for discharging oil or sediment.

[0026] A sealing cap 42 is provided at the inlet end of the first discharge pipe 4 to seal the end face of the first discharge pipe 4. The top surface of the sealing cap 42 is hemispherical to prevent the accumulation of sediment. Multiple flow holes 41 are provided on the side of the inlet end of the first discharge pipe 4, through which oil can enter the first discharge pipe 4. A filter screen 43 is provided inside the flow hole 41 to intercept impurities in the crude oil and reduce the probability of blockage of the first discharge pipe 4.

[0027] The discharge end of the second discharge pipe 5 is connected to a first pipe connector 10, which is a Y-type connector. The second discharge pipe 5 is connected to a slag discharge pipe 6 and a connecting pipe 7 through the first pipe connector 10. A first valve 61 is provided on the slag discharge pipe 6, which is used to open or close the slag discharge pipe 6. A second valve 71 is provided on the connecting pipe 7, which is used to open or close the connecting pipe 7.

[0028] The aforementioned slag discharge pipe 6 is used for discharging sediment. The discharge end of the connecting pipe 7 is connected to the discharge end of the first discharge pipe 4. When the collecting tank 3 needs to discharge slag, the second valve 71 is kept closed and the first valve 61 is opened, and the sediment inside the collecting tank 3 is discharged from the slag discharge pipe 6. When the oil inside the collecting tank 3 needs to be discharged, the second valve 71 can be opened after the first valve 61 is closed, and the oil inside the collecting tank 3 can enter the discharge end of the first discharge pipe 4 from the connecting pipe 7.

[0029] In this embodiment, a filter screen can also be installed at the connection between the connecting pipe 7 and the first pipe connector 10 for filtering the oil.

[0030] The aforementioned collection tank 3 is provided with an observation window 31 on its side, and the observation window 31 is made of transparent glass. The staff can observe the material inside the collection tank 3 through the observation window 31. Based on the material inside the collection tank 3, when the sediment inside the collection tank 3 has been drained, the slag discharge pipe 6 should be closed in time to prevent excessive oil from being discharged from the slag discharge pipe 6.

[0031] In this embodiment, the discharge end of the first discharge pipe 4 is connected to a second pipe connector 11, which is a Y-type connector. The first discharge pipe 4 is connected to an external pipe 8 and a connecting pipe 7 through the second pipe connector 11. An oil pump can be connected to the external pipe (8) for crude oil output. A third valve 81 is provided on the external pipe 8, which is used to open or close the external pipe 8. When the oil needs to be discharged, the second valve 71 is kept closed, and the third valve 81 is opened to discharge the oil. When the oil inside the collection tank 3 needs to be discharged (the oil here is the oil whose liquid level is lower than the inlet end of the first discharge pipe 4), the first valve 61 is kept closed, and the oil inside the collection tank 3 is discharged through the second discharge pipe 5, the connecting pipe 7, and the external pipe 8 in sequence via the second valve 71 and the third valve 81.

[0032] In this embodiment, a collection trough 3 is provided at the bottom of the crude oil tank to collect crude oil sediment. The first discharge pipe 4 extends above the collection trough 3 to discharge oil from the tank body 1. The inlet end of the first discharge pipe 4 extends above the collection trough 3 to prevent crude oil sediment from clogging the inlet end of the first discharge pipe 4. When oil needs to be discharged, the first valve 61 and the second valve 71 are kept closed, and the third valve 81 is opened to discharge the oil. When the oil inside the tank body 1 needs to be completely discharged, the oil below the inlet end of the first discharge pipe 4 cannot be discharged from the first discharge pipe 4 and needs to be discharged from the second discharge pipe 5. In this case, the first valve 61 is kept closed, and the second valve 71 is kept open. The oil inside the collection trough 3 can be discharged sequentially through the second discharge pipe 5, the connecting pipe 7, and the external pipe 8.

[0033] When the collection tank 3 needs to discharge slag, the second valve 71 and the third valve 81 are kept closed, and the first valve 61 is opened, so that the sediment inside the collection tank 3 is discharged from the slag discharge pipe 6.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A crude oil tank, comprising a tank body (1) and a tank cover (2) located on top of the tank body (1), wherein a feed pipe (21) is provided on the top of the tank cover (2), characterized in that, The bottom of the tank (1) is provided with a recessed collection trough (3). The bottom of the collection trough (3) is provided with a first discharge pipe (4) and a second discharge pipe (5). The inlet end of the first discharge pipe (4) extends to the top of the collection trough (3). The inlet end of the first discharge pipe (4) is provided with a filter screen (43). The outlet of the first discharge pipe (4) passes through the bottom of the collection trough (3) and extends to the outside of the collection trough (3). The inlet end of the second discharge pipe (5) is connected to the bottom of the collection trough (3). The outlet end of the second discharge pipe (5) is connected to a slag discharge pipe (6) and a connecting pipe (7). The connecting pipe (7) is connected to the outlet end of the first discharge pipe (4).

2. The crude oil tank according to claim 1, characterized in that, The side of the collection tank (3) is provided with an observation window (31).

3. The crude oil tank according to claim 2, characterized in that, The observation window (31) is made of transparent glass.

4. The crude oil tank according to any one of claims 1-3, characterized in that, The first discharge pipe (4) is provided with a sealing cap (42) at the feed end. The sealing cap (42) is used to seal the end face of the first discharge pipe (4). The feed end of the first discharge pipe (4) is provided with a flow hole (41) for oil to enter. A filter screen (43) is provided inside the flow hole (41).

5. The crude oil tank according to claim 4, characterized in that, The discharge end of the second discharge pipe (5) is provided with a first pipe joint (10), which is used to connect the second discharge pipe (5), the slag discharge pipe (6) and the connecting pipe (7).

6. The crude oil tank according to claim 5, characterized in that, The slag discharge pipe (6) is provided with a first valve (61) for opening or closing the slag discharge pipe (6).

7. The crude oil tank according to claim 5, characterized in that, The connecting pipe (7) is provided with a second valve (71) for opening or closing the connecting pipe (7).

8. The crude oil tank according to claim 7, characterized in that, The discharge end of the first discharge pipe (4) is provided with a second pipe connector (11), which is used to connect the first discharge pipe (4), the outer pipe (8) and the connecting pipe (7).

9. The crude oil tank according to claim 8, characterized in that, The external pipe (8) is provided with a third valve (81) for opening or closing the external pipe (8).

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