Dirty oil recovery device

Abstract

The utility model discloses a dirty oil recovery device which comprises a dirty oil tank, a dirty oil pump is fixed on the dirty oil tank in a conducting mode, a first valve is fixed at the output end of the dirty oil pump in a conducting mode, a first connecting pipe is fixed at the output end of the first valve in a conducting mode, and a first three-way connector is inserted into the output end of the first connecting pipe. A second valve is fixedly connected to one output end of the first three-way connector, a one-way valve is fixedly connected to the output end of the second valve, and a sixth valve is fixedly connected to the output end of the one-way valve; according to the utility model, the existing sump oil recovery pipeline is improved, and the pipeline is additionally arranged at the outlet of the sump oil pump and is connected to the tank area C5 feeding pipe for complete recovery, so that an external delivery device does not need to be used, the production of high-added-value products is facilitated, and the benefit is improved; c5 in a tank area can be prevented from reversely flowing into a dirty oil pipeline; the device adopts automatic control, has the advantage of simplicity in operation, and can save manpower.

Description

Technical Field

[0001] The utility model relates to the technical field of waste oil recovery, in particular to a waste oil recovery device. Background Art

[0002] The raw materials of the isomerization unit are C5 and C6 components, which are liquid at normal temperature and pressure. The pump maintenance and technical transformation projects need to discharge the materials into underground waste oil tanks. After the reflux tanks of each tower are emptied and discharged into the flare separator tank, the remaining liquid materials can also be discharged into the underground waste oil tanks. The existing technology designs a waste oil delivery device for underground tanks to uniformly recycle the waste oil. Because the production load of each unit is large and the waste oil of all units is delivered to the same storage tank, the material composition is complex and changeable, which is not conducive to the refining of the unit, resulting in reduced recovery efficiency. In addition, the existing waste oil recovery process has a low degree of automation, requires a lot of manual participation, and is complex to operate and inefficient. Utility Model Content

[0003] The purpose of the utility model is to provide a waste oil recovery device to solve the problems raised in the above background technology.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a waste oil recovery device, comprising a waste oil tank, a waste oil pump is connected and fixed on the waste oil tank, the output end of the waste oil pump is connected and fixed with a first valve, the output end of the first valve is connected and fixed with a first connecting pipe, the output end of the first connecting pipe is plugged with a first three-way joint, one of the output ends of the first three-way joint is connected and fixed with a second valve, the output end of the second valve is connected and fixed with a one-way valve, the output end of the one-way valve is connected and fixed with a sixth valve, the output end of the sixth valve is connected and fixed with a second three-way joint, the output end of the second three-way joint is connected and fixed with a fourth valve, the output end of the fourth valve is connected and fixed with a third three-way joint, and the output end of the third three-way joint is connected and fixed with a feed buffer tank.

[0005] Preferably, the first connecting pipe is conductively connected to a first flow meter, and the input end of the fourth valve is conductively connected to a second flow meter.

[0006] Preferably, the other output end of the first three-way connector is connected to and fixed with a third valve, and the output end of the third valve is connected to and fixed with a waste oil delivery pipe.

[0007] Preferably, a sewage discharge valve is fixedly connected to the feed buffer tank, and a second liquid level meter is fixedly connected to the feed buffer tank.

[0008] Preferably, the other input end of the third three-way connector is connected to and fixed with a feed pipe of an upstream device.

[0009] Preferably, the other input end of the second three-way connector is connected to and fixed with a second connecting pipe, and the input end of the second connecting pipe is connected to and fixed with a fifth valve.

[0010] Preferably, the input end of the fifth valve is connected to and fixed with a tank area C5 feed pipe.

[0011] Preferably, a first liquid level meter is fixedly connected to the waste oil tank, the first liquid level meter is electrically connected to a controller, and the controller is electrically connected to the waste oil pump, the first valve, the first flow meter, the second valve, the third valve, the sewage drain valve, the fourth valve, the second flow meter, the fifth valve, the second liquid level meter and the sixth valve respectively.

[0012] The utility model provides a waste oil recovery device, which has the following advantages: the utility model improves the existing waste oil recovery pipeline, and a pipeline is added at the waste oil pump outlet to connect to the tank area carbon five feed pipe for complete recovery, so there is no need to use an external delivery device, which is conducive to the production of high value-added products and improved efficiency. A one-way valve is arranged on the added pipeline to prevent the tank area carbon five from flowing back into the waste oil pipeline; the utility model adopts automatic control, has the advantage of simple operation, and can save manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a structural block diagram of the utility model.

[0015] In the figure: 1. Sewage oil tank; 2. Sewage oil pump; 3. Controller; 4. First liquid level gauge; 5. First valve; 6. First connecting pipe; 7. First flow meter; 8. First three-way joint; 9. Second valve; 10. Third valve; 11. Sewage oil delivery pipe; 12. Sewage discharge valve; 13. Feed buffer tank; 14. Upstream device feed pipe; 15. Fourth valve; 16. Second flow meter; 17. Second three-way joint; 18. Second connecting pipe; 19. Fifth valve; 20. Tank area C5 feed pipe; 21. Third three-way joint; 22. Second liquid level gauge; 23. Sixth valve; 24. One-way valve. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1The utility model provides an embodiment: a waste oil recovery device, including a waste oil tank 1, a waste oil pump 2 is connected and fixed on the waste oil tank 1, a first valve 5 is connected and fixed on the output end of the waste oil pump 2, a first connecting pipe 6 is connected and fixed on the output end of the first valve 5, a first three-way joint 8 is plugged into the output end of the first connecting pipe 6, a second valve 9 is connected and fixed on one output end of the first three-way joint 8, a one-way valve 24 is connected and fixed on the output end of the second valve 9, a sixth valve 23 is connected and fixed on the output end of the one-way valve 24, a second three-way joint 17 is connected and fixed on the output end of the sixth valve 23, a fourth valve 15 is connected and fixed on the output end of the second three-way joint 17, and a third three-way joint 21 is connected and fixed on the output end of the fourth valve 15, The output end of the third three-way joint 21 is connected and fixed with a feed buffer tank 13, the dirty oil pump 2 is used to extract the dirty oil, the first valve 5 is used to control the switch of the output end of the dirty oil pump 2, the first connecting pipe 6 is used to install the first three-way joint 8, the first three-way joint 8 and the second three-way joint 17 are both used to connect the newly added pipeline to the original pipeline, the second valve 9, the one-way valve 24 and the sixth valve 23 are on the newly added pipeline, the fourth valve 15 is used to control the switch of the input end of the third three-way joint 21, and the feed buffer tank 13 is used to store the recovered dirty oil; the first connecting pipe 6 is connected to the first flowmeter 7, the input end of the fourth valve 15 is connected to the second flowmeter 16, and the first flowmeter 7 and the second flowmeter 16 are used to monitor the dirty oil flow data in the pipeline; The other output end of the first three-way joint 8 is connected to and fixed with a third valve 10, and the output end of the third valve 10 is connected to and fixed with a dirty oil delivery pipe 11, and the third valve 10 is used to control the switch of the dirty oil delivery pipe 11; the feed buffer tank 13 is connected to and fixed with a sewage discharge valve 12, and the feed buffer tank 13 is fixedly connected with a second liquid level gauge 22, the sewage discharge valve 12 is used to control the switch of the sewage discharge end of the feed buffer tank 13, and the second liquid level gauge 22 is used to monitor the sewage level; the other input end of the third three-way joint 21 is connected to and fixed with an upstream device feed pipe 14, and the upstream device feed pipe 14 is used to transport the upstream device material to the feed buffer tank 13; the other input end of the second three-way joint 17 is connected to and fixed with a second connecting pipe 18, and the second connecting A fifth valve 19 is fixed to the input end of the connecting pipe 18, and the fifth valve 19 is used to control the switch of the input end of the second connecting pipe 18; a tank area carbon five feed pipe 20 is fixed to the input end of the fifth valve 19, and the tank area carbon five feed pipe 20 is used to transport the tank area carbon five; a first liquid level gauge 4 is fixedly connected to the dirty oil tank 1, and the first liquid level gauge 4 is electrically connected to the controller 3, and the controller 3 is electrically connected to the dirty oil pump 2, the first valve 5, the first flow meter 7, the second valve 9, the third valve 10, the sewage drain valve 12, the fourth valve 15, the second flow meter 16, the fifth valve 19, the second liquid level gauge 22 and the sixth valve 23 respectively, the first liquid level gauge 4 is used to monitor the dirty oil level in the dirty oil tank 1, and the controller 3 is used to realize automatic control.

[0018] Working principle: the waste oil in the production process is discharged into the waste oil tank 1, and the waste oil level in the waste oil tank 1 is monitored by the first liquid level meter 4. When the waste oil level reaches 60%, the waste oil recovery starts, and the controller 3 controls the third valve 10 and the fifth valve 19 to close, controls the second valve 9 to open, and controls the waste oil pump 2 to start. After the outlet pressure reaches 0.94MPa, the first valve 5 is controlled to open, and the opening degree of the first valve 5 is adjusted according to the flow data obtained by the first flow meter 7, so that the waste oil flow in the first connecting pipe 6 is not less than 20t / h. The waste oil enters the feed buffer tank 13 through the waste oil pump 2, the first valve 5, the first connecting pipe 6, the first three-way joint 8, the second valve 9, the one-way valve 24, the sixth valve 23, the second three-way joint 17, the fourth valve 15 and the third three-way joint 21, and enters The second liquid level meter 22 in the material buffer tank 13 monitors the liquid level of the dehydration bag. When the liquid level reaches the set height, the controller 3 controls the sewage drain valve 12 to open for drainage. When the dirty oil level drops to 20%, the dirty oil recovery is ended, the controller 3 controls the dirty oil pump 2 to close, and controls the valve to reset. The carbon five can enter the feed buffer tank 13 through the carbon five feed pipe 20, the fifth valve 19, the second connecting pipe 18, the second three-way joint 17, the fourth valve 15 and the third three-way joint 21 in the tank area. The upstream device feed pipe 14 is used to transport the upstream device material to the feed buffer tank 13, and the dirty oil delivery pipe 11 is used to deliver the dirty oil. The second flow meter 16 is used to detect the flow at the input end of the fourth valve 15. A one-way valve 24 is added between the second valve 9 and the sixth valve 23 to prevent the tank area carbon five from flowing back into the dirty oil pipeline.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0021] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A waste oil recovery device, comprising a waste oil tank (1), characterized in that: The waste oil tank (1) is connected and fixed with a waste oil pump (2); the output end of the waste oil pump (2) is connected and fixed with a first valve (5); the output end of the first valve (5) is connected and fixed with a first connecting pipe (6); the output end of the first connecting pipe (6) is plugged with a first three-way joint (8); one output end of the first three-way joint (8) is connected and fixed with a second valve (9); the output end of the second valve (9) is connected and fixed with a one-way valve (24); the output end of the one-way valve (24) is connected and fixed with a sixth valve (23); the output end of the sixth valve (23) is connected and fixed with a second three-way joint (17); the output end of the second three-way joint (17) is connected and fixed with a fourth valve (15); the output end of the fourth valve (15) is connected and fixed with a third three-way joint (21); the output end of the third three-way joint (21) is connected and fixed with a feed buffer tank (13).

2. A waste oil recovery device according to claim 1, characterized in that: The first connecting pipe (6) is conductively connected to a first flow meter (7), and the input end of the fourth valve (15) is conductively connected to a second flow meter (16).

3. A waste oil recovery device according to claim 1, characterized in that: The other output end of the first three-way connector (8) is connected to and fixed with a third valve (10), and the output end of the third valve (10) is connected to and fixed with a waste oil delivery pipe (11).

4. A waste oil recovery device according to claim 1, characterized in that: A sewage discharge valve (12) is connected and fixed to the feed buffer tank (13), and a second liquid level meter (22) is fixedly connected to the feed buffer tank (13).

5. A waste oil recovery device according to claim 1, characterized in that: The other input end of the third three-way connector (21) is connected to and fixed with an upstream device feed pipe (14).

6. A waste oil recovery device according to claim 1, characterized in that: The other input end of the second three-way connector (17) is connected to and fixed with a second connecting pipe (18), and the input end of the second connecting pipe (18) is connected to and fixed with a fifth valve (19).

7. A waste oil recovery device according to claim 6, characterized in that: The input end of the fifth valve (19) is connected to and fixed with a tank area C5 feed pipe (20).

8. The waste oil recovery device according to claim 1, characterized in that: The waste oil tank (1) is fixedly connected to a first liquid level meter (4), the first liquid level meter (4) is electrically connected to a controller (3), and the controller (3) is electrically connected to the waste oil pump (2), the first valve (5), the first flow meter (7), the second valve (9), the third valve (10), the sewage discharge valve (12), the fourth valve (15), the second flow meter (16), the fifth valve (19), the second liquid level meter (22) and the sixth valve (23).

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