Fractionating tower for petroleum refining

Abstract

The utility model discloses a fractionating tower for petroleum refining, which belongs to the technical field of petroleum processing equipment and comprises a fractionating tower body for petroleum refining and processing and a circular fixing seat for fixing, the bottom of the fractionating tower body is connected with the top of the fixing seat, and a square plate and a long plate are symmetrically arranged on two sides of the fixing seat respectively; a water tank is fixed to the top of the square plate and communicated with the condensation column through a connected water pipe, the top of the long plate is connected with a heating box used for preheating crude oil, and the heating box is located below the condensation column. A condensing pipe for circulating condensed liquid is arranged in the condensing column in a penetrating manner, one end of the condensing pipe is connected with the side wall of the fractionating tower body, and a movably connected cover plate is arranged at the top of the fractionating tower body. According to the petroleum refining device, petroleum refining processing can be accelerated through the arranged condensate water, a petroleum stock solution can be preheated through the temperature carried by the condensate water, energy loss is reduced, and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of petroleum processing equipment, and in particular to a fractionation tower for petroleum refining. Background Technology

[0002] A distillation tower is a device that uses physical means to separate liquids with different boiling points through distillation. In production distillation towers, to ensure the purity of the distilled liquid, condenser tubes of varying heights are often installed at staggered heights on the outside of the tower to precisely align the liquid separation layers. However, existing distillation tower condenser tubes typically rely on natural air cooling for water vapor condensation. This results in reduced condensation efficiency after a period of operation, limiting the device's practicality.

[0003] A search revealed, for example (Authorization Announcement No. CN220047117U), a fractionation tower for petroleum refining, comprising a tower body with multiple sets of pipes installed vertically on the surface of the tower body. Each pipe includes an extraction pipe and a guide pipe. The extraction pipe has an L-shaped structure and is rotatably connected to the side wall of the tower body. The guide pipe is located outside the tower body and connected to the extraction pipe. A fixed box, arranged in a long, vertical strip, is fixedly installed on the side wall of the tower body. The fixed box is fitted onto the outside of the extraction pipe. A control mechanism that cooperates with the extraction pipe is installed inside the fixed box. The control mechanism includes a rotating component and an adjusting component. The rotating component is located inside the fixed box and connected to the extraction pipe, and the adjusting component is located inside the fixed box and connected to the rotating component. This device solves the problem that existing equipment cannot accurately separate the liquid-liquid layers of the fractionation tower. However, this device uses natural air cooling for condensation, and its efficiency decreases as the temperature rises, reducing the practicality of the device. Utility Model Content

[0004] The purpose of this invention is to provide a fractionation tower for petroleum refining to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fractionation tower for petroleum refining, comprising a fractionation tower body for petroleum refining and a circular fixing seat for fixing, wherein the bottom of the fractionation tower body is connected to the top of the fixing seat, and square plates and long plates are symmetrically provided on both sides of the fixing seat.

[0006] A water tank is fixed to the top of the square plate, and the water tank is connected to the condenser column through a water pipe. A heating box for preheating crude oil is connected to the top of the long plate, and the heating box is located below the condenser column.

[0007] The condenser column is equipped with a condenser tube for the flow of condensed liquid. One end of the condenser tube is connected to the side wall of the fractionation column body, and the top of the fractionation column body is equipped with a movable cover plate.

[0008] As a preferred embodiment, the top and side walls of the heating box are provided with connection ends for easy connection, and a steel pipe is fixed to the top of one of the connection ends, which is connected to the bottom of the condenser column.

[0009] As a preferred embodiment, another connection end is connected to a circulation pipe, and the other end of the circulation pipe is fixed to the side wall of the water tank.

[0010] As a preferred embodiment, the surface of the circulation pipe is provided with a number of heat dissipation fins at equal intervals, and all the fins are connected to the circulation pipe.

[0011] As a preferred embodiment, the condenser column surrounds the interior of the condenser tube, and one end of the condenser tube is provided with a connecting pipe for easy connection, which is connected to the side wall of the fractionation tower body.

[0012] As a preferred embodiment, the top of the water tank is provided with a filling port for easy addition of condensate, and the filling port is provided with a round cap for sealing.

[0013] As a preferred embodiment, the bottom of the square plate, the long plate, and the fixed base are all provided with supporting feet, and the square plate, the long plate, and the fixed base are placed in parallel.

[0014] Compared with the prior art, the technical effects and advantages of this utility model are as follows:

[0015] This petroleum refining fractionation tower has its bottom connected to the top of a fixed base, and a connecting pipe is provided around the periphery of the tower body for easy connection. The connecting pipe is connected to a condenser tube for condensing liquid produced by petroleum fractionation. A condenser column for accelerating the condensation rate is sleeved on the outer periphery of the condenser tube. The condenser column is hollow and condensate is circulated in the cavity of the condenser column, thereby further accelerating the condensation of the high-temperature evaporated liquid and improving the practicality of the device.

[0016] This petroleum refining fractionation tower has square plates and long plates arranged parallel to each other on both sides of the fixed base. The top of each plate is equipped with a water tank and a heating tank for preheating petroleum, respectively. A circulation pipe is installed between the water tank and the heating tank. The cooling condensate can be returned to the water tank through the circulation pipe, reducing resource waste. In addition, several equally spaced heat dissipation fins are set on the outer periphery of the circulation pipe. The fins are hollow inside and connected to the circulation pipe, which further accelerates the cooling effect of the condensate. Then, under the action of the water pipe, the condensate entering the condensation column is kept at room temperature, thereby improving the condensation rate and sustainability of the unit.

[0017] This device solves the problems of uncontrollable condensation efficiency and slow rate caused by natural air cooling in existing equipment, thus improving the practicality of the device. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a fractionation tower used in petroleum refining.

[0020] Figure 2 This is a schematic diagram of the structure of the condenser column of this utility model;

[0021] Figure 3 This utility model Figure 2 Half-section view of the condenser column in the AA direction;

[0022] Figure 4 This is a schematic diagram of the structure of the long plate of this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the fin of this utility model;

[0024] Figure 6 This is a front view of the fin connection of this utility model;

[0025] Figure 7 This is a schematic diagram of another connection structure of the fins of this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] In the diagram: 1. Fixed base; 2. Fin; 3. Square plate; 4. Water tank; 5. Filling port; 6. Water pipe; 7. Cover plate; 8. Condensation column; 9. Condensation tube; 10. Circulation pipe; 11. Feed pipe; 12. Heating box; 13. Long plate; 14. Connection end; 15. Connection pipe; 16. Steel pipe; 17. Fractionating tower body. Detailed Implementation

[0028] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0029] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0030] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0031] An embodiment of a fractionation tower for petroleum refining, such as... Figures 1 to 7 As shown, the system includes a fractionation tower body 17 for petroleum refining and a circular mounting base 1 for fixing. The bottom of the fractionation tower body 17 is connected to the top of the mounting base 1. Four symmetrical support legs are welded to the bottom of the mounting base 1. The support legs facilitate the isolation of the fractionation tower body 17 from the ground. In order to fractionate the crude petroleum liquid inside the fractionation tower body 17, a heating coil is provided inside the mounting base 1. Its function can refer to existing induction cookers or other electric heating structures. The temperature of the mounting base 1 can be adjusted through an externally connected control panel, thereby facilitating precise control of temperature rise and improving the quality and efficiency of petroleum production fractionation.

[0032] The fixed base 1 is symmetrically provided with a square plate 3 and a long plate 13 on both sides. Both of them are also provided with support legs. The square plate 3 and the long plate 13 are arranged parallel to the fixed base 1 so that the three are always on the same horizontal plane, which facilitates operation and use.

[0033] A water tank 4 is fixed to the top of the square plate 3. A condensate filling port 5 is provided on the top of the water tank 4. The filling port 5 is equipped with a circular plate for sealing, which avoids the loss of condensate due to evaporation caused by high temperature and facilitates the control of the condensate level inside the water tank 4. The water tank 4 is connected to the condensation column 8 through a water pipe 6. A connecting pipe 15 is provided at one end of the condensation column 8. The connecting pipe 15 has an external thread and is connected to the connecting end 14 located on the side wall of the fractionation tower body 17 by the threaded connection, so that the evaporated steam can enter the interior of the cooling period 8 through the connecting pipe 15. Multiple water pumps are installed inside the water tank 4 to complete the overall circulation of condensate inside the device. The water pumps are all existing mature structures. Through the setting of the water pumps, condensate can be delivered to the interior of the condensation column 8 at regular intervals and accurately, and the heated condensate can be returned through the circulation pipe 10 to complete the circulation.

[0034] The top of the long plate 13 is connected to a heating box 12 for preheating crude oil. The inside of the heating box 12 is equipped with a feed pipe 11 for conveying crude oil liquid. Because the heating box 12 is hollow, the condensate after use carries the residual heat generated when the water vapor condenses. Thus, the crude oil liquid can be preheated inside the heating box 12 through heat exchange, reducing the energy required for fractionation processing and improving the practicality of the device.

[0035] The heating box 12 is located below the condensing column 8. A connecting end 14 is provided on the periphery of the heating box 12 for easy connection. The connecting end 14 is connected to the hollow steel pipe 16. The other end of the steel pipe 16 is connected to the bottom of the condensing column 8, thereby completing the connection between the heating box 12 and the condensing column 8. This facilitates the automatic guidance of condensate through water pressure and backflow, making operation convenient.

[0036] A condenser pipe 9 for the flow of condensed liquid is installed inside the condenser column 8. One end of the condenser pipe 9 is connected to the side wall of the fractionation tower body 17. For easy connection, a connection end 14 is also provided on the periphery of the fractionation tower body 17. The connection end 14 not only facilitates connection but also makes disassembly and flexible use. The top of the fractionation tower body 17 is provided with a movable cover plate 7. The cover plate 7 allows for regular cleaning of the inside of the fractionation tower body 17 after the petroleum refining process is completed, preventing excessive internal sediment from affecting petroleum production.

[0037] In order to ensure the circulation of condensate after use, a circulation pipe 10 is provided between the heating box 12 and the water tank 4. Both ends of the circulation pipe 10 are fixed to the connection end 14. In order to improve the heat dissipation of condensate, hollow heat dissipation fins 2 are provided vertically or inclined at equal intervals on the outer periphery of the circulation pipe 10. The arrangement of fins 2 can increase the contact area between air and condensate, thereby further improving the cooling effect of condensate under natural air cooling.

[0038] Or refer to the instruction manual. Figure 7 The device employs a multi-pipe connection, allowing the condensate flowing inside the fin 2 to maintain a constant flow rate under the action of the water pump inside the water tank 4. By controlling the flow of condensate inside the fin 2, the air around the fin 2 is further circulated under the action of hot and cold air currents, accelerating the flow of condensate and improving the practicality of the device.

[0039] The internal structure of the condenser column 8 is hollow, and a condenser tube 9 is fixed in the middle of the condenser column 8. By adding condensing water inside the condenser column 8, the condensation of steam during petroleum refining fractionation is accelerated, and waste heat is recovered through the condenser column 8. Unlike traditional condensers, this is an endothermic structure, not an exothermic structure.

[0040] The fractionation tower body 17 is a conventional instrument. Its working principle, size and model are not related to the function of this application, so they will not be described in detail. The control method of this utility model is through a controller. The control circuit of the controller can be implemented by a person skilled in the art through simple programming. The power supply is also common knowledge in the art. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail.

[0041] Working principle

[0042] When using this petroleum refining distillation tower, the crude petroleum liquid to be processed is transported to the interior of the distillation tower body 17 through the feed pipe 11. The internal working and heating of the fixed base 1 are controlled. The cover plate 7 is opened to add condensate into the filling port 5. The water level in the water tank 4 is controlled. The water pump is started. Under the action of the water pipe 6, the condensate is pumped into the interior of the paper condenser column 8. At this time, the crude petroleum liquid inside the distillation tower body 17 evaporates and the steam is collected through the connected condenser pipe 9. Under the action of the condenser column 8, the production efficiency of petroleum refining products is accelerated.

[0043] Under water pressure, the heated condensate is concentrated into the heating box 12 through the steel pipe 16 connected to the bottom of the condenser column 8. The heating box 12 surrounds the outer periphery of the feed pipe 11 to preheat the petroleum crude liquid entering the fractionation tower body 17. Finally, with the help of the circulation pipe 10 and the fins 2 connected to the circulation pipe 10, the temperature carried inside the condensate is further cooled down, and it can be used continuously.

[0044] It should be noted that, in this document, relational terms such as "one" and "two" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fractionating column for petroleum refining, comprising a fractionating column body (17) for petroleum refining processing and a circular fixing seat (1) for fixation, characterized in that: The bottom of the fractionating tower body (17) is connected with the top of the fixed base (1), and the two sides of the fixed base (1) are symmetrically provided with square plates (3) and long plates (13) respectively; The top of the square plate (3) is fixedly provided with a water tank (4), the water tank (4) is communicated with a condensing column (8) through a connecting water pipe (6), and the top of the long plate (13) is connected with a heating tank (12) for preheating of crude oil, and the heating tank (12) is located below the condensing column (8); The condensing column (8) is provided with a condensing pipe (9) penetrating through the inside of the condensing column (8) for condensing liquid circulation, one end of the condensing pipe (9) is connected with the side wall of the fractionating tower body (17), and the top of the fractionating tower body (17) is provided with a cover plate (7) connected movably.

2. The fractionating column for petroleum refining according to claim 1, wherein: The top and the side wall of the heating tank (12) are provided with connecting ends (14) for convenient connection, the top of one of the connecting ends (14) is fixedly provided with a steel pipe (16), and the steel pipe (16) is communicated with the bottom of the condensing column (8).

3. The fractionating column for petroleum refining according to claim 2, wherein: The other connecting end (14) is connected with a circulating pipe (10), and the other end of the circulating pipe (10) is fixedly connected with the side wall of the water tank (4).

4. The fractionating column for petroleum refining according to claim 3, wherein: The surface of the circulating pipe (10) is uniformly provided with a plurality of fins (2) for heat dissipation, and the fins (2) are communicated with the circulating pipe (10).

5. The fractionating column for petroleum refining according to claim 2, wherein: The condensing column (8) is surrounded in the condensing pipe (9), one end of the condensing pipe (9) is provided with a connecting pipe (15) for convenient connection, and the connecting pipe (15) is connected with the side wall of the fractionating tower body (17).

6. The fractionating column for petroleum refining according to claim 3, wherein: The top of the water tank (4) is provided with a filling port (5) for convenient addition of condensed water, and the filling port (5) is provided with a round cover for sealing.

7. The fractionating column for petroleum refining according to claim 1, wherein: The bottom of the square plate (3), the long plate (13) and the fixed base (1) is provided with supporting legs, and the square plate (3), the long plate (13) and the fixed base (1) are placed in parallel.

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