Energy-saving naphtha fractionation device

Abstract

The utility model discloses a naphtha energy -conserving fractionating device, it includes base frame, the inner surface fixedly connected with heater of base frame, the outer surface of heater is provided with oil inlet pipe, the upper surface of heater is provided with oil gas pipe, the oil gas pipe is provided with processing box away from one end of heater, the right surface of processing box is provided with the communicating pipe, the communicating pipe is provided with fractionating column away from one end of processing box. Through setting motor, pivot and stirring shaft, can carry out sufficient stirring to the naphtha that enters the inside of heater to reduce temperature gradient to improve heat transfer efficiency, make the naphtha in the inside of heater reach the required temperature faster, finally reduce heating time, reduce energy consumption, through setting filter screen, can remove the impurity in oil gas to improve the purification effect of naphtha, and through setting the structure such as insertion slot, buckle seat and buckle assembly, can dismantle filter screen whole to improve practicality.

Description

Technical Field

[0001] This utility model relates to the field of fractionation equipment technology, and in particular to an energy-saving naphtha fractionation equipment. Background Technology

[0002] Naphtha is an important petrochemical raw material, widely used in the production of basic chemical products such as ethylene, propylene, benzene, and toluene. The separation and purification of naphtha is typically achieved through fractionation units. The fractionation process requires precise temperature control and efficient heat transfer to ensure the effective separation of components with different boiling point ranges.

[0003] However, existing naphtha fractionation units still have certain drawbacks. For example, naphtha is usually in a static state during the heating process, which prevents the naphtha entering the heater from heating up quickly, thus forming a temperature gradient on the surface and resulting in low heat transfer efficiency. Low heat transfer efficiency means that longer heating time and higher heating temperature are required. Secondly, naphtha produces impurities such as sulfur compounds after heating, and traditional fractionation units lack oil and gas filtration components, causing the oil and gas to be fractionated under impure conditions, which in turn affects the purification effect. Utility Model Content

[0004] The purpose of this invention is to provide an energy-saving naphtha fractionation device that can fully stir the naphtha entering the heater, thereby reducing the temperature gradient, improving heat transfer efficiency, and enabling the naphtha inside the heater to reach the required temperature more quickly, ultimately reducing heating time and energy consumption. It can also remove impurities from the oil and gas, thereby improving the purification effect of naphtha, and the filter screen can be disassembled as a whole, thereby improving practicality.

[0005] To achieve the above objectives, an energy-saving naphtha fractionation apparatus is provided, comprising:

[0006] A base frame is provided, with a heater fixedly connected to its inner surface. An oil inlet pipe is provided on the outer surface of the heater, and an oil-gas pipe is provided on the upper surface of the heater. A processing tank is located at the end of the oil-gas pipe furthest from the heater. A connecting pipe is provided on the right surface of the processing tank, and a fractionation tower is located at the end of the connecting pipe furthest from the processing tank. A steam connecting pipe is provided on the outer surface of the fractionation tower, and a condenser is located at the upper end of the fractionation tower. A reflux pipe is provided on the outer surface of the fractionation tower. A motor is fixedly connected to the lower surface of the heater, and a rotating shaft is fixedly connected to the output end of the motor. A stirring shaft is fixedly connected to the outer surface of the rotating shaft. A slot is provided inside the processing tank, and a filter screen is slidably connected to the inner surface of the slot. A top plate is fixedly connected to the upper surface of the filter screen, and a high-temperature resistant sealing gasket is fixedly connected to the lower surface of the top plate. A snap-fit ​​seat is fixedly connected to the upper surface of the processing tank.

[0007] A snap-fit ​​assembly includes a fixing box, a guide rod, a spring, a fixing seat, a fixing post, an L-shaped limiting plate, and an insert block. The inner surface of the fixing box is fixedly connected to the guide rod, the outer surface of the guide rod is slidably connected to the fixing seat, the left surface of the fixing seat is fixedly connected to the spring, the inner surface of the fixing seat is fixedly connected to the fixing post, the outer surface of the fixing post is rotatably connected to the L-shaped limiting plate, and the inner surface of the L-shaped limiting plate is fixedly connected to the insert block.

[0008] According to the aforementioned naphtha energy-saving fractionation device, the left surface of the buckle seat is provided with a buckle groove, and the inner surface of the buckle groove is adapted to the insert block.

[0009] According to the aforementioned naphtha energy-saving fractionation device, the outer surface of the rotating shaft is rotatably connected to the heater, and the number of stirring shafts is four, distributed vertically.

[0010] According to the aforementioned naphtha energy-saving fractionation device, the lower surface of the high-temperature resistant sealing gasket is in contact with the processing tank, and the upper surface of the top plate is in contact with the L-shaped limiting plate.

[0011] According to the aforementioned naphtha energy-saving fractionation device, the upper surface of the processing tank is fixedly connected to the fixed box, and the outer surface of the fixed seat is slidably connected to the fixed box.

[0012] According to the aforementioned naphtha energy-saving fractionation device, the left end of the spring is fixedly connected to the fixed box, and the spring is sleeved on the outer surface of the guide rod.

[0013] According to the aforementioned naphtha energy-saving fractionation device, the number of filter screens is three, distributed left and right.

[0014] According to the aforementioned naphtha energy-saving fractionation device, the motor is electrically connected to an external power source.

[0015] The above-mentioned solution has the following beneficial effects:

[0016] By setting up a motor, a rotating shaft, and a stirring shaft, the naphtha entering the heater can be fully stirred, thereby reducing the temperature gradient, improving heat transfer efficiency, and allowing the naphtha inside the heater to reach the required temperature more quickly, ultimately reducing heating time and energy consumption.

[0017] By setting up a filter, impurities in the oil and gas can be removed, thereby improving the purification effect of naphtha. Furthermore, by setting up a structure such as slots, buckle seats and buckle components, the entire filter can be disassembled, thereby improving its practicality.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0020] Figure 1 This is a schematic diagram of the overall structure of a naphtha energy-saving fractionation device according to the present invention;

[0021] Figure 2 This is a partial structural cross-sectional view of a naphtha energy-saving fractionation device according to the present invention;

[0022] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0023] Figure 4 This is a schematic diagram of the snap-fit ​​assembly structure of a naphtha energy-saving fractionation device according to this utility model.

[0024] Legend:

[0025] 1. Base frame; 2. Heater; 3. Oil inlet pipe; 4. Oil and gas pipe; 5. Processing tank; 6. Connecting pipe; 7. Distillation tower; 8. Steam connecting pipe; 9. Condenser; 10. Return pipe; 11. Motor; 12. Shaft; 13. Stirring shaft; 14. Slot; 15. Filter screen; 16. Top plate; 17. High-temperature resistant sealing gasket; 18. Snap-fit ​​seat; 19. Snap-fit ​​assembly; 20. Fixing box; 21. Guide rod; 22. Spring; 23. Fixing seat; 24. Fixing column; 25. L-shaped limiting plate; 26. Insert block; 27. Slot. Detailed Implementation

[0026] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0027] Reference Figure 1-4This utility model discloses an energy-saving naphtha fractionation device, comprising: a base frame 1, a heater 2 fixedly connected to the inner surface of the base frame 1, an oil inlet pipe 3 provided on the outer surface of the heater 2, an oil-gas pipe 4 provided on the upper surface of the heater 2, a processing tank 5 provided at the end of the oil-gas pipe 4 away from the heater 2, a connecting pipe 6 provided on the right surface of the processing tank 5, a fractionation tower 7 provided at the end of the connecting pipe 6 away from the processing tank 5, a water vapor connecting pipe 8 provided on the outer surface of the fractionation tower 7, a condenser 9 provided at the upper end of the fractionation tower 7, a reflux pipe 10 provided on the outer surface of the fractionation tower 7, a motor 11 fixedly connected to the lower surface of the heater 2, a rotating shaft 12 fixedly connected to the output end of the motor 11, and a rotating shaft 12 on the outer surface of the rotating shaft 12. A stirring shaft 13 is fixedly connected. A slot 14 is provided inside the processing box 5. A filter screen 15 is slidably connected to the inner surface of the slot 14. A top plate 16 is fixedly connected to the upper surface of the filter screen 15. A high-temperature resistant sealing gasket 17 is fixedly connected to the lower surface of the top plate 16. A buckle seat 18 is fixedly connected to the upper surface of the processing box 5. A buckle groove 27 is provided on the left surface of the buckle seat 18. The outer surface of the rotating shaft 12 is rotatably connected to the heater 2. There are four stirring shafts 13 distributed vertically. The lower surface of the high-temperature resistant sealing gasket 17 is in contact with the processing box 5 to prevent oil and gas leakage. The upper surface of the top plate 16 is in contact with the L-shaped limiting plate 25. There are three filter screens 15 distributed horizontally. The motor 11 is electrically connected to an external power source.

[0028] The snap-fit ​​assembly 19 includes a fixing box 20, a guide rod 21, a spring 22, a fixing seat 23, a fixing post 24, an L-shaped limiting plate 25, and an insert block 26. The inner surface of the fixing box 20 is fixedly connected to the guide rod 21, the outer surface of the guide rod 21 is slidably connected to the fixing seat 23, the left surface of the fixing seat 23 is fixedly connected to the spring 22, the inner surface of the fixing seat 23 is fixedly connected to the fixing post 24, the outer surface of the fixing post 24 is rotatably connected to the L-shaped limiting plate 25, the inner surface of the L-shaped limiting plate 25 is fixedly connected to the insert block 26, the inner surface of the slot 27 is adapted to the insert block 26 to facilitate the overall limiting and fixing of the filter screen 15, the upper surface of the processing box 5 is fixedly connected to the fixing box 20, the outer surface of the fixing seat 23 is slidably connected to the fixing box 20, the left end of the spring 22 is fixedly connected to the fixing box 20, and the spring 22 is sleeved on the outer surface of the guide rod 21.

[0029] The fractionation unit components, including heater 2, fractionation tower 7, and condenser 9, are all mature existing technologies, and their working principles have been disclosed, so they will not be described in detail here.

[0030] Working Principle: During operation, naphtha enters heater 2 through inlet pipe 3. Then, motor 11 is started, driving shaft 12 to agitate and heat the naphtha inside heater 2 via stirring shaft 13. This allows the naphtha inside heater 2 to heat up rapidly, reducing energy consumption. The heated and vaporized oil then enters processing tank 5 through oil-gas pipe 4. After being filtered by filter screen 15, it enters fractionation tower 7 through connecting pipe 6, effectively reducing impurities and improving purification. Simultaneously, high-temperature steam is introduced into fractionation tower 7 through steam connecting pipe 8 to heat the tower, thus fractionating the incoming raw material oil-gas. When filter screen 15 needs to be used… To clean, simply push the fixing seat 23 along the guide rod 21 and compress the spring 22. This will cause the insert 26 on the L-shaped limiting plate 25 to disengage from the slot 27. Then, rotate the L-shaped limiting plate 25 around the fixing post 24 to release the restriction on the top plate 16. Afterward, pull out the filter screen 15 from the inside of the slot 14 to complete the disassembly. After cleaning, simply reinsert the filter screen 15 into the slot 14 and rotate the L-shaped limiting plate 25 again around the fixing post 24. When the insert 26 aligns with the slot 27, release the fixing seat 23. Under the rebound force of the spring 22, the insert 26 will automatically insert into the slot 27, thus completing the limiting and fixing installation of the filter screen 15.

[0031] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A naphtha energy-saving fractionation device, comprising: A base frame (1) is provided with a heater (2) fixedly connected to its inner surface. An oil inlet pipe (3) is provided on the outer surface of the heater (2). An oil-gas pipe (4) is provided on the upper surface of the heater (2). A processing tank (5) is provided at the end of the oil-gas pipe (4) away from the heater (2). A connecting pipe (6) is provided on the right surface of the processing tank (5). A fractionation tower (7) is provided at the end of the connecting pipe (6) away from the processing tank (5). A steam connecting pipe (8) is provided on the outer surface of the fractionation tower (7). A condenser (9) is provided at the upper end of the fractionation tower (7). The outer surface of the fractionation tower (7) is... The surface is provided with a return pipe (10), characterized in that a motor (11) is fixedly connected to the lower surface of the heater (2), a rotating shaft (12) is fixedly connected to the output end of the motor (11), a stirring shaft (13) is fixedly connected to the outer surface of the rotating shaft (12), a slot (14) is provided inside the processing box (5), a filter screen (15) is slidably connected to the inner surface of the slot (14), a top plate (16) is fixedly connected to the upper surface of the filter screen (15), a high-temperature resistant sealing gasket (17) is fixedly connected to the lower surface of the top plate (16), and a buckle seat (18) is fixedly connected to the upper surface of the processing box (5). The snap-fit ​​assembly (19) includes a fixing box (20), a guide rod (21), a spring (22), a fixing seat (23), a fixing post (24), an L-shaped limiting plate (25), and an insert (26). The inner surface of the fixing box (20) is fixedly connected to the guide rod (21), the outer surface of the guide rod (21) is slidably connected to the fixing seat (23), the left surface of the fixing seat (23) is fixedly connected to the spring (22), the inner surface of the fixing seat (23) is fixedly connected to the fixing post (24), the outer surface of the fixing post (24) is rotatably connected to the L-shaped limiting plate (25), and the inner surface of the L-shaped limiting plate (25) is fixedly connected to the insert (26).

2. The naphtha energy-saving fractionation device according to claim 1, characterized in that, The left surface of the buckle seat (18) is provided with a slot (27), and the inner surface of the slot (27) is adapted to the insert block (26).

3. The naphtha energy-saving fractionation device according to claim 1, characterized in that, The outer surface of the rotating shaft (12) is rotatably connected to the heater (2), and there are four stirring shafts (13) distributed vertically.

4. The naphtha energy-saving fractionation device according to claim 1, characterized in that, The lower surface of the high-temperature resistant sealing gasket (17) is in contact with the processing box (5), and the upper surface of the top plate (16) is in contact with the L-shaped limiting plate (25).

5. The naphtha energy-saving fractionation device according to claim 1, characterized in that, The upper surface of the processing box (5) is fixedly connected to the fixed box (20), and the outer surface of the fixed seat (23) is slidably connected to the fixed box (20).

6. The naphtha energy-saving fractionation device according to claim 1, characterized in that, The left end of the spring (22) is fixedly connected to the fixed box (20), and the spring (22) is sleeved on the outer surface of the guide rod (21).

7. The naphtha energy-saving fractionation device according to claim 1, characterized in that, The number of filters (15) is three, and they are distributed on the left and right.

8. The naphtha energy-saving fractionation device according to claim 1, characterized in that, The motor (11) is electrically connected to an external power source.

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