Fractionating tower for petroleum refining

Abstract

The utility model relates to the technical field of petroleum fractionation, and discloses a fractionating tower for petroleum refining, which comprises a tower body, the upper surface of the tower body is fixedly connected with a purifying box, the upper end of the purifying box is provided with a box cover, and the lower surface of the box cover is fixedly connected with a plurality of iron blocks. According to the device disclosed by the utility model, through the arrangement of the waste gas pipe, waste gas enters the purification box and is desulfurized with water in the purification box, when steam in a steam outlet pipe moves upwards, a fan is driven to rotate, power is transmitted to a second fluted disc through a connecting rod and then transmitted to a first fluted disc through a chain, so that the power is transmitted to a stirring rod; according to the waste gas purification device, the stirring rod rotates to drive the stirring rod to rotate, so that water and waste gas are fully reacted, then the waste gas is secondarily filtered through the gas outlet pipe and the filter screen and then discharged, the pressure in the purification box is reduced, the waste gas is purified, and pollution of the waste gas to the environment is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of petroleum fractionation, in particular to a fractionating tower for petroleum refining. Background Technique

[0002] The petroleum fractionating tower is a device in the petroleum refining process. Its working principle is to separate layer by layer according to the different boiling points of the components in the crude oil. The crude oil is first heated to boiling, and the steam rises to the top of the tower. During this process, compounds with different boiling points will condense into liquids at different heights in the tower and then be discharged.

[0003] Most of the existing petroleum fractionating towers will discharge waste gas from the top of the tower, which will cause certain pollution to the environment. Therefore, there is an urgent need for technical improvement. Moreover, most petroleum fractionating towers do not have a good heat preservation measure during use, resulting in heat loss or unstable temperature inside the tower, thus greatly reducing the production efficiency and product quality. In this regard, there is an urgent need for technical improvement.

[0004] Therefore, the technical personnel in this field provide a fractionating tower for petroleum refining to solve the problems raised in the above background technique. Content of the Utility Model

[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art, and a fractionating tower for petroleum refining is proposed. Through the first solenoid valve and the second solenoid valve, when steam enters the steam inlet pipe, the second solenoid valve is opened to allow the steam to enter the heat preservation pipe and then enter the heat preservation cavity, so as to achieve the heat preservation effect inside the tower. The heat preservation sleeve prevents the temperature from dissipating due to the contact between the tower wall and the outside. The steam entering the heat preservation cavity rises and finally enters the steam outlet pipe. The temperature is reduced through the condenser and then becomes liquid and enters the purification tank, thereby supplementing the water volume in the purification tank, which brings great convenience. The liquefied water in the heat preservation cavity is discharged from the tower body through the drain pipe.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A fractionating tower for petroleum refining, comprising a tower body. The upper surface of the tower body is fixedly connected with a purification box. The upper end of the purification box is provided with a box cover. The lower surface of the box cover is fixedly connected with a plurality of iron blocks. Positioning grooves are formed at the edges of the upper surface of the purification box. Electromagnets are arranged on the inner bottom surface of the positioning grooves. An air outlet pipe is arranged at the upper end of the box cover. An air outlet cover is arranged at the upper end of the air outlet pipe. A filter screen is arranged inside the air outlet cover. One side of the center of the lower surface of the box cover is rotatably connected with a rotator. A stirring rod is fixedly connected to the lower surface of the rotator. A plurality of stirring rods are arranged on the lower surface of the stirring rod. One side of the upper end of the box cover is provided with a steam outlet pipe. A first gear disc is sleeved on the middle part of the outer wall of the stirring rod. A support rod is fixedly connected to the middle part of the inner wall of the steam outlet pipe. The center of the lower surface of the support rod is rotatably connected with a connecting rod. A fan is fixedly connected to the lower surface of the connecting rod. A second gear disc is sleeved on the middle part of the support rod. Chains are sleeved on the outer walls of the first gear disc and the second gear disc;

[0008] A heat preservation sleeve is arranged on the outer wall of the tower body. A heat preservation cavity is arranged inside the tower body. A drain pipe is arranged on one side of the lower end of the outer wall of the tower body. A steam inlet pipe is arranged on the outer wall of the tower body close to the drain pipe. A first electromagnetic valve is arranged on the pipe body of the steam inlet pipe. A heat preservation pipe is arranged at the upper end of the steam inlet pipe. A second electromagnetic valve is arranged on the outer wall of the heat preservation pipe.

[0009] Through the above technical solutions, this kind of petroleum fractionating tower can effectively treat the waste gas discharged from the top of the tower and can have a good heat preservation function.

[0010] Furthermore, a plurality of liquid discharge pipes are fixedly connected to one side of the outer wall of the tower body far from the drain pipe.

[0011] Through the above technical solutions, different liquids in the tower can be discharged through the liquid discharge pipes.

[0012] Furthermore, a heavy oil port is fixedly connected to one side of the lower end of the outer wall of the tower body far from the drain pipe.

[0013] Through the above technical solutions, the residues left at the bottom of the tower are discharged from the tower through the heavy oil port.

[0014] Furthermore, a feed port is fixedly connected to the upper end of the outer wall of the tower body close to the steam inlet pipe.

[0015] Through the above technical solutions, petroleum steam is introduced into the tower through the feed port for fractionation.

[0016] Furthermore, a condenser is arranged in the middle of the pipe body of the steam outlet pipe.

[0017] Through the above technical solutions, the steam in the steam outlet pipe is liquefied into water by the condenser and then enters the purification box.

[0018] Further, a waste gas pipe is fixedly connected to the center of the upper surface of the tower body.

[0019] Through the above technical solution, the waste gas at the top of the tower is discharged from the tower through the waste gas pipe.

[0020] Further, a sewage discharge pipe is fixedly connected to one side of the purification box close to the liquid discharge pipe.

[0021] Through the above technical solution, sewage and impurities are discharged from the purification box through the sewage discharge pipe.

[0022] Further, a plurality of chambers are provided inside the tower body.

[0023] Through the above technical solution, each component in the crude oil is separated layer by layer due to different boiling points through the chambers and liquefied into a liquid.

[0024] The utility model has the following beneficial effects:

[0025] 1. A fractionating tower for petroleum refining proposed by the utility model, compared with most current petroleum fractionating towers, the waste gas enters the purification box through the provided waste gas pipe, and desulfurization is carried out with the water inside. When the steam moves upward in the steam outlet pipe, it drives the fan to rotate. The power is transmitted to the second gear through the connecting rod, and then transmitted to the first gear through the chain, and then transmitted to the stirring rod, so that the stirring rod makes a rotational motion, driving the stirring rod to rotate, so that the water and the waste gas react fully. Subsequently, the waste gas is discharged after secondary filtration through the air outlet pipe and the filter screen, which not only reduces the pressure inside the purification box, but also purifies the waste gas, thus avoiding environmental pollution caused by the waste gas. And the filter screen can be replaced through the air outlet cover, making it more convenient to clean.

[0026] 2. A fractionating tower for petroleum refining proposed by the utility model, compared with most current petroleum fractionating towers, the fractionating tower has a first electromagnetic valve and a second electromagnetic valve. When steam enters the steam inlet pipe, the second electromagnetic valve is opened to allow the steam to enter the heat preservation pipe and then enter the heat preservation cavity, so that the temperature inside the tower can be kept warm. The heat preservation sleeve prevents the temperature from being dissipated due to the contact of the tower wall with the outside. The steam entering the heat preservation cavity moves upward and finally enters the steam outlet pipe. The temperature is reduced through the condenser and then becomes a liquid and enters the purification box, thus supplementing the water volume in the purification box, which brings great convenience. And the liquefied water in the heat preservation cavity is discharged from the tower body through the drain pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is an isometric view of a fractionating tower for petroleum refining proposed by the utility model;

[0028] Figure 2The front view of a fractionating column for petroleum refining proposed by the present utility model;

[0029] Figure 3 The front view of the tower body in a fractionating column for petroleum refining proposed by the present utility model;

[0030] Figure 4 The structural schematic diagram of the purification box in a fractionating column for petroleum refining proposed by the present utility model;

[0031] Figure 5 The enlarged view of the A position in 4;

[0032] Figure 6 The axonometric view of the second gear disk in a fractionating column for petroleum refining proposed by the present utility model.

[0033] Legend description:

[0034] 1. Tower body; 2. Purification box; 3. Condenser; 4. Steam outlet pipe; 5. Drain pipe; 6. Heavy oil port; 7. Drainage pipe; 8. First solenoid valve; 9. Steam inlet pipe; 10. Second solenoid valve; 11. Feed inlet; 12. Heat preservation pipe; 13. Heat preservation sleeve; 14. Heat preservation cavity; 15. Sewage discharge pipe; 16. Chamber; 17. Exhaust gas pipe; 18. Box cover; 19. Rotator; 20. Stirring rod; 21. First gear disk; 22. Stirring stick; 23. Chain; 24. Support rod; 25. Second gear disk; 26. Connecting rod; 27. Fan; 28. Air outlet cover; 29. Filter screen; 30. Air outlet pipe; 31. Iron block; 32. Positioning groove; 33. Electromagnet. Specific embodiments

[0035] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0036] Refer to Figure 1-6 The present utility model provides an embodiment:

[0037] A fractionating tower for petroleum refining, comprising a tower body 1. The upper surface of the tower body 1 is fixedly connected with a purification box 2. The upper end of the purification box 2 is provided with a box cover 18. The lower surface of the box cover 18 is fixedly connected with a plurality of iron blocks 31. Positioning grooves 32 are opened at the edges of the upper surface of the purification box 2. An electromagnet 33 is arranged on the inner bottom surface of the positioning groove 32. An air outlet pipe 30 is arranged at the upper end of the box cover 18. An air outlet cover 28 is arranged at the upper end of the air outlet pipe 30. A filter screen 29 is arranged inside the air outlet cover 28. One side of the center of the lower surface of the box cover 18 is rotatably connected with a rotator 19. A stirring rod 20 is fixedly connected to the lower surface of the rotator 19. A plurality of stirring rods 22 are arranged on the lower surface of the stirring rod 20. One side of the upper end of the box cover 18 is provided with a steam outlet pipe 4. A first gear disc 21 is sleeved on the middle part of the outer wall of the stirring rod 20. A support rod 24 is fixedly connected to the middle part of the inner wall of the steam outlet pipe 4. The center of the lower surface of the support rod 24 is rotatably connected with a connecting rod 26. A fan 27 is fixedly connected to the lower surface of the connecting rod 26. A second gear disc 25 is sleeved on the middle part of the rod body of the support rod 24. Chains 23 are sleeved on the outer walls of the first gear disc 21 and the second gear disc 25;

[0038] A heat preservation sleeve 13 is arranged on the outer wall of the tower body 1. A heat preservation cavity 14 is arranged inside the tower body 1. A drain pipe 7 is arranged on one side of the lower end of the outer wall of the tower body 1. An inlet steam pipe 9 is arranged on the outer wall of the tower body 1 close to the drain pipe 7. A first electromagnetic valve 8 is arranged on the pipe body of the inlet steam pipe 9. A heat preservation pipe 12 is arranged at the upper end of the inlet steam pipe 9. A second electromagnetic valve 10 is arranged on the outer wall of the heat preservation pipe 12.

[0039] This petroleum fractionating tower can effectively treat the waste gas discharged from the top of the tower and has a good heat preservation function.

[0040] A plurality of drain pipes 5 are fixedly connected to one side of the outer wall of the tower body 1 away from the drain pipe 7. Different liquids in the tower can be discharged through the drain pipes 5. A heavy oil port 6 is fixedly connected to one side of the lower end of the outer wall of the tower body 1 away from the drain pipe 7. The residues left at the bottom of the tower are discharged from the tower through the heavy oil port 6. A feed port 11 is fixedly connected to the upper end of the outer wall of the tower body 1 close to the inlet steam pipe 9. Petroleum steam is introduced into the tower through the feed port 11 for fractionation. A condenser 3 is arranged in the middle of the pipe body of the steam outlet pipe 4. The steam in the steam outlet pipe 4 is liquefied into water by the condenser 3 and then enters the purification box 2. A waste gas pipe 17 is fixedly connected to the center of the upper surface of the tower body 1. The waste gas at the top of the tower is discharged from the tower through the waste gas pipe 17. A sewage discharge pipe 15 is fixedly connected to one side of the purification box 2 close to the drain pipe 5. Sewage and impurities are discharged from the purification box 2 through the sewage discharge pipe 15. A plurality of chambers 16 are opened inside the tower body 1. Each component in the crude oil is separated layer by layer due to different boiling points and liquefied into a liquid through the chambers 16.

[0041] Working principle: When in use, when steam enters the steam inlet pipe 9, the steam enters the heat preservation pipe 12 by opening the second solenoid valve 10, and then enters the heat preservation cavity 14, so as to keep the tower body 1 warm. Also, the heat preservation sleeve 13 prevents the temperature from dissipating due to the contact between the tower wall and the outside. The steam that liquefies into water in the heat preservation cavity 14 will be discharged from the tower through the drain pipe 7. The steam moves upward and enters the steam outlet pipe 4, thereby driving the fan 27 in the steam outlet pipe 4 to rotate. Then, it liquefies into water through the condenser 3 and enters the purification tank 2 to supplement water. When the waste gas is discharged into the purification tank 2 through the waste gas pipe 17 and desulfurized with water, the fan 27 rotating due to the steam flow transmits power to the second gear 25 through the connecting rod 26, and the power is transmitted to the first gear 21 through chain drive, thereby driving the stirring rod 20 to rotate, further driving the stirring rod 22 to rotate, so that the water and the waste gas can react fully. The sewage and impurities in the purification tank 2 can be discharged through the sewage discharge pipe 15, and then the waste gas is discharged after secondary filtration through the air outlet pipe 30 and the filter screen 29, thus avoiding environmental pollution by the waste gas. And the filter screen 29 can be replaced through the air outlet cover 28, making it more convenient to clean. When it is necessary to clean the purification tank 2, the power can be cut off to make the electromagnet 33 lose magnetism and separate from the iron block 31, so that the box cover 18 can be opened more conveniently for cleaning.

[0042] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fractionation tower for petroleum refining, comprising a tower body (1), characterized in that: The upper surface of the tower body (1) is fixedly connected to a purification box (2), the upper end of the purification box (2) is provided with a box cover (18), the lower surface of the box cover (18) is fixedly connected to a plurality of iron blocks (31), the edges of the upper surface of the purification box (2) are provided with positioning grooves (32), the inner bottom surface of the positioning groove (32) is provided with an electromagnet (33), the upper end of the box cover (18) is provided with an air outlet pipe (30), the upper end of the air outlet pipe (30) is provided with an air outlet cover (28), the interior of the air outlet cover (28) is provided with a filter screen (29), and one side of the center of the lower surface of the box cover (18) is rotatably connected to a rotator (19), the rotator (19) A stirring rod (20) is fixedly connected to the lower surface, and a plurality of stirring rods (22) are arranged on the lower surface of the stirring rod (20); a steam outlet pipe (4) is arranged on one side of the upper end of the box cover (18); a first toothed disc (21) is sleeved in the middle of the outer wall of the stirring rod (20); a support rod (24) is fixedly connected in the middle of the inner wall of the steam outlet pipe (4); a connecting rod (26) is rotatably connected at the center of the lower surface of the support rod (24); a fan (27) is fixedly connected to the lower surface of the connecting rod (26); a second toothed disc (25) is sleeved in the middle of the rod body of the support rod (24); and chains (23) are sleeved on the outer walls of the first toothed disc (21) and the second toothed disc (25); The outer wall of the tower body (1) is provided with a heat preservation sleeve (13), the interior of the tower body (1) is provided with a heat preservation chamber (14), a drainage pipe (7) is provided on one side of the lower end of the outer wall of the tower body (1), a steam inlet pipe (9) is provided on the outer wall of the tower body (1) on the side close to the drainage pipe (7), a first solenoid valve (8) is provided on the body of the steam inlet pipe (9), a heat preservation pipe (12) is provided on the upper end of the steam inlet pipe (9), and a second solenoid valve (10) is provided on the outer wall of the heat preservation pipe (12).

2. A petroleum refining fractionation tower according to claim 1, characterized in that: A plurality of drainage pipes (5) are fixedly connected to one side of the outer wall of the tower body (1) away from the drainage pipe (7).

3. A petroleum refining fractionation tower according to claim 1, characterized in that: A heavy oil port (6) is fixedly connected to a side of the lower end of the outer wall of the tower body (1) away from the drain pipe (7).

4. A petroleum refining fractionation tower according to claim 1, characterized in that: A feed port (11) is fixedly connected to the upper end of the outer wall of the tower body (1) on the side close to the steam inlet pipe (9).

5. A petroleum refining fractionation tower according to claim 1, characterized in that: A condenser (3) is arranged in the middle of the body of the steam outlet pipe (4).

6. A petroleum refining fractionation tower according to claim 1, characterized in that: An exhaust gas pipe (17) is fixedly connected to the center of the upper surface of the tower body (1).

7. A fractionation tower for petroleum refining according to claim 1, characterized in that: A sewage discharge pipe (15) is fixedly connected to one side of the purification box (2) close to the liquid discharge pipe (5).

8. A fractionation tower for petroleum refining according to claim 1, characterized in that: A plurality of chambers (16) are provided inside the tower body (1).

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